Brief Introduction of Precisetool Precision Equipments

Jiaxing Jingrui Instrument & Equipment Co., Ltd. is a company specialized in manufacturing four-indents crimping tools, including M22520 series hand/pneumatic crimping pliers, customized series hand/pneumatic crimping pliers, pneumatic desktop crimping machine, and so on. But Precisetool products are far more than these. Main products also include connector assembly tools, plastic and metal molds, wind speed alarm, wind speed sensor and so on. Precisetool increased R & D investment based on market demands. In recent years, Precisetool has been committed to the design and development of precision equipments, such as precision steel ball screening machine, pneumatic terminal necking-in machine, gas sealing testing equipment, terminal insertion force test machine and so on.

The following is a brief introduction of several equipment:

1. Terminal Insertion Force Test Machine（CLJ-02）

This equipment is used to test the insertion and extraction force of necked terminals and then select qualified terminals.

Products are divided into qualified products, products with insertion and extraction force over the upper limit and products with insertion and extraction force below the lower limit based on test results.

Parameter:

1. Equipment cycle: production cycle time 12-14S;

2. Equipment replacement module: needle plate, clamping module, standard needle, standard weight.

3. Equipment size: length 1200mm * width 700mm (area)

4. Input power: single-phase 220V, 50hz;

5. Input air sourse: 5-8kg / cm2 clean and compressed air

CLJ-02 Terminal Insertion Force Test Machine

CLJ-02 Details of Terminal Insertion Force Test Machine

2. Terminal Necking-in Machine（SKQ-HT002）

Terminal necking-in machine, model SKQ-HT002, used for necking terminals in aviation connectors. PLC automatic control, manual material-loading, mechanical necking, automatic blanking, one-time completion, simple and convenient. Necking cylindrical double-slot socket for different sizes and shapes by replacing of the die set.

Working principle:

This equipment is controlled by the PLC system. Cycle of action completed by four cylinders, manual material-loading, fast necking, free blanking.

Large volume of the gas tank as well as the pressure regulating valve ensure the stable output of air pressure of necking module. And the digital-display pressure gauge monitors the air pressure.

When output pressure is unstable, the device alarms, so as to ensure the consistency of the terminal necking.

SKQ-HT002 Terminal Necking-in Machine

3. Gas Sealing Test Equipment（JRQM-02）

This is a gas sealing test equipment used for electrical connectors. The equipment contains four stations and each operates independently.

It can be applied to connectors with different sizes and shapes by changing the sealing rubber and the mold.

Functional Principle:

This equipment realizes independent operation of the multi-position through the PLC procedure control. Press the start button in each station to complete the movement cycle. (The equipment can carry on pressure-maintaining time setting according to process requirements. Time Adjustment Range: 0 ~ 60min. Using SMC precision pressure regulating valve with adjustable detection pressure. Pressure Adjustment Range: 0.2 ~ 0.6MPa) Determine whether the product qualified by observing the water bubbles.

JRQM-02 Gas Sealing Test Equipment

4. Precision Ball Screening Machine

For the separation of small and micro steel balls, alloy steel balls, stainless steel balls and ceramic balls. The sorting accuracy can reach to 1um, and it can pick out bug balls. It is widely used by all kinds of precision steel ball manufacturers.

Sorting Accuracy：0.001mm

Measurement Range：0.2-2.5mm

Shaft Working Size：580mm

AC：220V

Power：0.12KW

Weight：100KG

Frequency：50HZ

Ball Screening Machine

Details of Ball Screening Machine

5. Wind Speed Alarm（HX-FS-3A）

HX-FS-3A wind speed alarm is an industrial device designed for a variety of occasions that need to measure wind speed and atmospheric alarms. It features high reliability and wide working voltage range, and it is suitable for harsh environment.

Measurement Range：0~40 m/s (0~89.48MPH)

Alarm Output：Relay contact points（7A/220VAC),Buzzer

Power Supply：(DC9~36V) (Better：12~24V)

Measurement Accuracy：+-(0.3+0.03V)米/秒

Display：wind speed 0.1m/s，wind class 1

Working Temperature：-20~60℃

Product innovation stems from market demand. Precisetool takes market demand as the starting point, clear direction of product technology research, and then create marketable products to meet market demand, and finally seek the best combination of risk and profits.

Four-indent Eight-impression Crimping in Aviation

Aviation manufacturing technology is a manifestation of modern scientific and technological achievements. The manufacturing difficulty and requirements are much higher than the general machinery. The aviation industry supported by advanced manufacturing technology is also known as the flower industry, which represents the highest level of a country's manufacturing industry and technological strength.

As we all know, the aircraft also has many high-tech sensor components in addition to the sophisticated mechanical components which used to, for example, measuring the relative flight speed, barometric altitude, absolute height from the ground and so on. These data are not counted by visual or pinch-count, but silently collected by each sensor in their respective positions. In addition, the aviation pin also plays a important role. In this way, we have a safe and reliable way to go outside and travel.

For safety and stability considerations, the terminal and the wire connection must be symmetrical, uniform and stable, and can withstand more harsh working environment. In this regard, Precisetool's four-indent eight-impression terminal crimping is the best choice.

l  Calibrated by gauges.

l  Four-indent crimping way, satisfied with the highest quality requirements.

l  The teeth works in synchronous motion with stroke-locking devices to ensure the crimping quality.

l  Varieties of positioners, including customized and MIL standard positioners.

l  High-quality chrome vanadium steel, vacuum heat treatment, durable for long time use.

In addition to hand tools, Precisetool also uses compressed air as power source to provide semi-automatic solutions for customers.

Pneumatic terminal crimping tool, easy to operate, fast crimping!

Pneumatic crimping tool YJQ-W2Q

The four-indent crimping tools are manufactured according to is MIL-C-22520 standard, which feature high crimping efficiency, safe and reliable with excellent performance. It is mainly produced and used by aerospace industry. At present, the four-indent eight-impression crimping tools have become designated products  in the field of aerospace !

Copper Lug and Its Crimping

Copper lug plays the role of connection and protection of copper wire and the required connection items. And it is a connector used to connect a wire to an electrical device which is widely used in the electrical industry, mechanical equipment factory, shipyard, power distribution cabinet, etc..

The connection between copper lug and the wire is of vital importance regarding its wide range of applications. In order to ensure its connection performance, the crimping connection method is generally used. The most frequently used method is of course the hexagonal crimping--most wiring harness factories are accustomed to using this crimping method. But with the development of new energy charging piles, the requirements of wire harness connection are increasingly high. The use of hexagonal crimping began to decrease because of some of its shortcomings. Meanwhile, the use of four-indent crimping is rising, and is widely acclaimed.

The four-indent crimping technology is originally used in the field of military and aviation, but due to various reasons, this technology has been gradually applied to civilian and industrial fields. The thermal shock resistance of four-indent crimping is better than that of the hexagonal crimping. Because the material of terminal and wire is different which resulting in different thermal expansion and contraction ratio. The life of four-indent crimping is longer than the hexagonal crimping, so does the using times and durability.

The tensile strength of four-indent crimping is higher than the hexagon crimping (at least 30% in the same compression ratio) which resulting in a significant increase in anti-vibration and other performances. It is more obvious in the car. For example, BYD is now using Precisetool TS series four-indent crimping tools. TS series four-indent crimping exerts a lasting contact force to ensure direct tension force between wires and terminals and then to ensure the normal use of the power system in different environments.

Precisetool TS, TSL series four-indent pneumatic crimping machine is in small size, suitable for production-oriented line operation. In addition, there is no load-bearing requirements on the ground. It features energy-saving, long life and totally safe operation of the staff. Because of its adjustable design , it can solve a variety of terminals and wire crimping in a single machine which greatly reduces the management pressure and cost.

Precisetool Terminal Tension Testing Service

 Precisetool provides professional terminal tensile testing services.

1. Terminal mapping and document creation

After receiving customer's terminals (jack/pin) and wire samples, first of all, the technical staff performs terminal mapping. The mapping process must be meticulous and rigorous to ensure the accuracy of the data. Then, the technical staff performs the terminal sorting and information screening to ensure the integrity of technical information and to provide customers with the most economical and reasonable selection of tools.

Terminal Platting(Example)

2. Preliminary selection

Secondly, model selection of terminal crimping tool, crimping tool selector position, as well as positioners. Selector position determined by a professional formula. This formula comes out after numerous attempts and tests and has high applicability and accuracy. But the result is still a theoretical selector position, taking into account the actual rebound of material and other factors, the tensile test is needed to determine the ultimate reliability.

Formula of crimping tool theoretical selector position

3. Terminal crimping

Use the selected crimping tool for terminal crimping. Position #6 of pneumatic crimping tool YJQ-W3Q is suitable for the terminal above. Use the YJQ-W3Q to crimp the wires and terminals according to the correct operating procedure.

Pneumatic crimping tool YJQ-W3Q

4. Image collection

Take pictures. Including the terminals before and after crimping.

Crimping sample

5. Terminal tensile testing

As the selector position calculated by the formula is theoretical, it can not fully ensure the reliability of the terminal tension value. So a terminal tensile test is necessary.

Tensile Test Example

6. Experimental analysis and summary

The results of the tensile test are made into a tensile test record table. The recommend  model and related data, such as terminal name, wire size, positioner, crimp outer diameter, crimp inner diameter, crimp position parameters, test tension value, and diagonal value etc., should be clearly presented in the test record table. Draw tensile test chart which makes the test results more intuitive. The results show that the position #6 achieve the standard tension. Of course, customers need to perform other related performance testing.

Terminal information table

Tensile test record table

After packaging crimped terminal, stick the label: number, customer name, time, selection of tools, suitable positioner and other information. Finally, send the terminal information table and tensile test record table to customers. Crimped samples send back to customers for reference, and do other performance testing and then make the final tool selection.

Brief Introduction of Hand Crimp Tool Kit —— KIT1024

KIT1024 Products List: YJQ-W2A (AF8 M22520/1-01) Hand Crimping Tool + TH1A Turret Head (M22520/1-02) +TH163 Turret Crimper Positioner (M22520/1-04) +UH2-5 Adjustable Crimper Positioner (M22520/1-05) + G125 Go-no-go Gage (M22520/3-01) + 9/64 Hex Wrench + 8-32UNC×1 Screw + 8-32UNC×5/16 Screw

KIT1024

Product List of KIT1024

Datasheet/Specification of KIT1024

1. Precisetool YJQ-W2A Aviation Hand Crimping Tool for Military Connectors Aerospace Wiring Harness

· Qualified to M22520/1-01

· Equivalent to DMC AF8 Crimping Tool

· Has limitless application within the specified wire range of 12—16 AWG

· Gives a Mil-Standard 8 impression crimp, which assures maximum tensile strength

· Crimp depth can be adjusted by an 8 position selector knob conveniently located on the tool frame

· The precision ratchet controls cycling of the tool in both directions of handle movement which assures the same accurate crimp every time

· The carefully engineered design achieves the absolute maximum mechanical advantage and it is light-weighted to help minimize operator fatigue

· Suitable for military institutions, aviation companies and electronic connectors/military connectors/heavy duty connectors companies, wiring harness or cable assembly manufacturer

2. Precisetool TH163 (M22520/1-04) Adjustable Turret Head for AF8 Wire Crimper

· Weight: 0.25 lb

· Equivalent to M22520/1-04

· Adjustable turret crimper positioner

· Gives a standardized and accurate crimp every time

· Can be adjusted to match the diameter of the connectors and the wires desired

· A dataplate affixed to turret head lists specific contact part numbers, the corresponding position color code, and suggested selector depth settings for the wire size being used

3. Precisetool TH1A (M22520/1-02) Adjustable Turret Positioner For AF8 Aerospace Hand Crimping Tool Cable Crimper

· Weight: 0.25 lb

· Equivalent to M22520/1-02

· Adjustable turret crimper positioner

· Gives a standardized and accurate crimp every time

· A dataplate affixed to turret head lists specific contact part numbers, the corresponding position color code, and suggested selector depth settings for the wire size being used.

4. Precisetool UH2-5 (M22520/1-05) Postioner Head for Aviation Pneumatic/Hand Tools Wire Cable Crimping Tool

· Weight: 0.15 lb

· Equivalent to M22520/1-05

· Can be easily mated to the crimping tool frame

· Adjustable for a wide range of wire and connector sizes

· Adapt the tool frame to specific military or proprietary contact combination

· The screw can be secured with the locknut provided

· The selected contact is inserted through the entry hole on the opposite side of the tool frame from the head

· The height adjusting screw is rotated until the contact is in the proper position for crimping

· Can be used on commercial installations, home maintenance, laboratory work, and heavy duty military or aerospace applications

5. Precisetool G125 (M22520/3-1) Go-no-go Gauge for AFM8/AF8 Cable Crimping Tool

· GO: 0.039 inch

· NO-GO: 0.044 inch

· Equivalent to M22520/3-1

· Periodic gaging is recommended to insure accurate calibration

· Set the tool selector knob to position 4, and check indenter closure with the gage

Installation and Removal Instruction of M22520 Crimper Positioners

M22520 series manual and pneumatic crimping tools are widely used in crimping wires and terminals in electrical connectors. The crimping pliers, if not used with the positioner, the operator will have to determine the position of each crimping by eyes which will not only take unnecessary time and effort, but also reduce the overall efficiency. Thus, the positioner plays a very important role in the manual or pneumatic crimping process. 

Among all kinds of positioners, fixed positioners, screw-adjustable positioners, turret positioners are the three main types. Screw-adjustable positioner and turret positioner are more welcomed by the majority of customers because of its wide range of application.

Proper installation and removal of the positioner are of vital significance. Here we briefly introduce the installation and removal steps of turret positioners.

Positioner: TH163 (M22520 / 1-04) Turret Positioner

Adaptation Tools: YJQ-W2A (M22520 / 1-01) Four-indent Crimping Pliers

Installation of Positioner

1. With tool in open position, press positioner trigger latch to release turret to indexing position

2. Place positioner onto retaining ring with alignment pin in alignment hole

3. After positioner is seated against retainer ring, tighten socket head screws with 9/64" hex

4. Press turret to check if it is installed correctly or work proporly

5. With tool in open position, press positioner trigger latch to release turret to indexing position again

6. Refer to dataplate on positioner. From color code column, select the positioner color that corresponds with the appropriate part number and size of contact to be crimped. Rotate until color coded insert is in line with the index mark. Press turret until it snaps in latched position

Then, the installation process has been completed. Refer to dataplate. From wire size column, determine the selector setting that corresponds with the contact being used. Remove spring clip from selector knob and rotate until correct setting is in line with selector mark. Next, the crimping operation can be performed.

Removal of Positioner

With tool in open position, release turret. Loosen screws until threads are disengaged from retainer ring and remove with a straight lifting motion.

Caution: Tool must be in open position whenever positioner is being installed, removed or released. Damage to turret head and crimp tool may result if this procedure is not followed.

In addition, there are some other positioner installation pictures for your reference.

Is the installation and removal process very simple?