Contact spring group cable crimping device

Abstract

The utility model belongs to the field of electronic component assembling equipment, and particularly relates to a contact spring group cable crimping device which comprises a pressing mechanism and a positioning tool which are arranged on a machine table, and the pressing mechanism comprises a pressing column; the positioning tool comprises a spring set positioner and a cable positioner, the spring set positioner comprises a spring plate fixer and a pressure-bearing assembly, the pressure-bearing assembly comprises a pressure-bearing table, a conduction pressing plate and guide mechanisms, the pressure-bearing table is arranged under a pressing column, the left side and the right side of the pressure-bearing table are each provided with one guide mechanism, and the guide mechanisms are arranged on the left side and the right side of the pressure-bearing table. The transmission pressing plate is arranged between the pressing column and the pressure bearing table in the left-right direction, the two ends of the transmission pressing plate are inserted into the inserting plate gaps of the left guiding mechanism and the right guiding mechanism respectively, the cable positioner comprises a long-strip-shaped cable supporting table and a cable limiting block, and during working, the free end of a cable in the cable groove abuts against the rear end face of the vertical baffle. The crimping device can crimp a plurality of pipe sleeves (cable joints) at one time, and has the advantages of high working efficiency and high crimping quality.

Description

Technical Field

[0001] The utility model belongs to the field of electronic component assembly equipment, and in particular relates to a contact spring assembly cable crimping device. Background Art

[0002] The contact spring assembly usually includes an H-shaped contact spring plate, a spring leaf and a cable connector. Four spring leaves are provided in the center of the bottom surface of the contact spring plate. The four cable connectors are electrically connected to the four spring leaves and fixed in the center of the top surface of the contact spring plate. The four cable connectors are distributed at the four corners of the rectangle. When the contact spring assembly is used, it is necessary to fix another cable on each of the four cable connectors. The cable is usually fixed by crimping, that is, first pre-insert the cable head into the cable connector, and then put a sleeve on the cable connector. The sleeves are manually flattened one by one with a hand-held wrench to fix the connection between the cable head and the connector. This manual assembly method has backward positioning and inaccurate positioning. At the same time, the force of each press of the hand-pressing wrench is different. Some need to be pressed repeatedly to ensure that the process requirements are met. In this way, the sleeve may be broken or the spring leaf inside the sleeve may be broken during the pressing process, resulting in an increase in waste and a decrease in product qualification rate. Crimping the cable sleeves one by one has low work efficiency. Utility Model Content

[0003] The utility model aims to provide a contact spring assembly cable crimping device with simple structure, high working efficiency and good crimping effect.

[0004] The technical solution for achieving the above-mentioned purpose includes the following contents.

[0005] A contact spring assembly cable crimping device, comprising a pressing mechanism and a positioning tool installed on a machine platform,

[0006] The pressing mechanism comprises a pressing column connected to the cylinder and driven by the cylinder to move up and down;

[0007] The positioning tool comprises a spring assembly positioner and a cable positioner,

[0008] The spring assembly positioner includes a spring plate fixer and a pressure-bearing component. The spring plate fixer is arranged at the rear of the machine platform. The front end surface of the spring plate fixer is provided with a T-shaped slot in the vertical direction. The width of the T-shaped slot is adapted to the width of the contact spring plate, and the height of the T-shaped slot is adapted to the thickness of the contact spring plate. The T-shaped slot opens forward, and a spring accommodation space is provided at the bottom of the T-shaped slot; the pressure-bearing component includes a pressure-bearing platform, a conductive pressure plate, and a guide mechanism. The pressure-bearing platform is arranged in front of the spring plate fixer and is located directly below the pressure column. The guide mechanism includes a mounting seat, a reset spring, and an I-shaped guide block. The mounting seat is provided with an accommodating through hole in the left and right directions. The reset spring and the I-shaped guide block are both provided with In the accommodating through hole, a reset spring is arranged at the bottom of the accommodating through hole, the I-shaped guide block comprises two upper and lower transverse plates and a vertical plate connecting the two transverse plates, the bottom surface of the lower transverse plate abuts against the top surface of the reset spring, a limiting protrusion is arranged in the middle of the side wall of the accommodating through hole, the limiting protrusion is located in the space between the upper and lower transverse plates, under the action of the reset spring, the top surface of the lower transverse plate abuts against the limiting protrusion, a plug-in plate gap is arranged between the top surface of the I-shaped guide block and the top wall of the accommodating through hole, a guide mechanism is respectively arranged on the left and right sides of the pressure platform, the conduction pressure plate is arranged between the pressure column and the pressure platform along the left and right directions, and the two ends of the conduction pressure plate are respectively inserted in the plug-in plate gaps of the left and right guide mechanisms,

[0009] The cable positioner includes a long wire supporting platform and a cable limiting block. The wire supporting platform is arranged in front of the pressure platform. The top surface of the wire supporting platform is provided with two parallel wire grooves in the front-to-back direction. The width of the wire grooves is adapted to the outer diameter of the cable. The cable limiting block includes a horizontal plate and two vertical baffles connected to the bottom surface of the horizontal plate. The thickness of the vertical baffles is adapted to the width of the wire groove. The horizontal plate is installed on the top surface of the front part of the wire supporting platform. The two vertical baffles are respectively inserted in the two wire grooves. When working, the free end of the cable in the wire groove abuts the rear end surface of the vertical baffle.

[0010] Furthermore, the position of the cable limit block along the front-to-back direction is adjustable, which is conducive to adjusting the position according to the length of the cable, thereby realizing the crimping of cables of different lengths, and increasing the versatility of the crimping device.

[0011] Furthermore, a strip-shaped through hole is provided on the upper edge of the horizontal plate in the front-to-back direction, and the cable limiting block is fixed on the cable supporting platform by means of bolts inserted into the strip-shaped through hole.

[0012] Furthermore, there are two strip-shaped through holes, which are symmetrically arranged on the left and right sides of the wire slot.

[0013] Furthermore, the cylinder is a single-axis cylinder.

[0014] Furthermore, the bottom surface of the pressure column, the top surface of the pressure platform, and the top and bottom surfaces of the conductive pressure plate are all provided with tooth-shaped protrusions, which are beneficial for creating multiple pits for the pipe sleeve during crimping, increasing the friction between the pipe sleeve and the connector and the cable end disposed therein, and promoting the firmness of the connection between the cable and the contact spring assembly.

[0015] When the above-mentioned contact spring group cable crimping device is used, the four cable heads are respectively inserted into the cable connectors in advance, and then a tube sleeve is connected to the outer surface of the four cable connectors. Then the contact spring plate is placed sideways with the tube sleeve pointing forward, and the contact spring plate is inserted from the upper end of the T-shaped slot. When the bottom side end of the contact spring plate abuts against the machine table, the tube sleeves on the two lower cable connectors abut against the top surface of the pressure-bearing table. At this time, the spring sheet is located in the spring sheet accommodating space, and the T-shaped slot realizes the positioning and fixing of the contact spring plate in the front-back and left-right directions. The other ends of the four cables also enter the wire groove of the cable positioner. The cables are limited in the left-right direction of the wire groove, and the ends of the cables abut against the machine table. The cable length (front and back) direction is limited on the rear end face of the vertical baffle. The conductive pressure plate is inserted into the gap between the plug plates of the left guide mechanism, and passes between the upper and lower sets of pipe sleeves, and is inserted into the gap between the plug plates of the right guide mechanism. The top and bottom surfaces of the conductive pressure plate abut against the upper and lower sets of pipe sleeves respectively. The cylinder is started, and the cylinder drives the pressure column to descend. The bottom end face of the pressure column abuts against the two upper pipe sleeves. The pipe sleeves transmit the pressure to the conductive pressure plate, and the conductive pressure plate squeezes the two lower pipe sleeves. The four pipe sleeves are squeezed and deformed due to the support of the pressure platform, and the joints and cable ends inserted in the pipe sleeves are locked. When the conductive pressure plate moves downward, the I-shaped guide block is pressed downward, and the reset spring is squeezed. When the bottom surface of the upper horizontal plate of the I-shaped guide block abuts against the limiting protrusion, it cannot move downward, which can prevent the pressure column from moving downward too much and causing overpressure. After the crimping is completed, the cylinder drives the pressure column upward, the reset spring stretches, and the I-shaped guide block lifts and resets the conductive pressure plate. The conductive pressure plate is pulled out of the guide mechanism to take out the contact spring group that has been crimped. The contact spring group cable crimping device of the utility model can crimp multiple sleeves (cable joints) at a time, with high work efficiency. The cylinder drives the pressure column downward, and the stroke is controllable, thereby improving the crimping quality.

[0016] The utility model has the advantages of simple structure, easy operation and high crimping quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the contact spring assembly cable workpiece after crimping;

[0018] Figure 2 It is a schematic diagram of the working state of the contact spring assembly cable crimping device of the embodiment;

[0019] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0020] Figure 4It is a schematic diagram of the local structure of the spring assembly positioner of the embodiment.

[0021] In the figure, 1. machine platform; 2. pressing mechanism; 2-1. cylinder; 2-2. pressure column; 3. spring assembly positioner; 3-1. spring plate fixer; 3-1-1. T-slot; 3-1-2. spring plate accommodating space; 3-2 pressure-bearing assembly; 3-2-1. pressure-bearing platform; 3-2-2. conductive pressure plate; 3-2-3. guiding mechanism; 3-2-30. mounting seat; 3-2-31. reset spring; 3-2-32. I-shaped guide block; 3-2-33. limiting protrusion; 3-2-34. plug-in board gap; 4. cable positioner; 4-1. wire support platform; 4-1-1. wire trough; 4-2. cable limiting block; 4-2-1. horizontal plate; 4-2-2. vertical baffle; 5. spring contact plate; 6. cable; 7. pipe sleeve. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the embodiments.

[0023] See also Figures 1 to 4 A contact spring assembly cable crimping device includes a pressing mechanism 2 and a positioning tool installed on a machine platform 1.

[0024] The pressing mechanism 2 includes a pressing column 2-2 connected to the cylinder 2-1 and driven by the cylinder 2-1 to move up and down; the cylinder 2-1 in this embodiment is an SDA thin single-axis cylinder, and the positioning tooling includes a spring group positioner 3 and a cable positioner 4.

[0025] The spring assembly positioner 3 includes a spring plate fixer 3-1 and a pressure-bearing assembly 3-2. The spring plate fixer 3-1 is arranged at the rear of the machine 1. A T-shaped slot 3-1-1 is arranged on the front end surface of the spring plate fixer 3-1 in the vertical direction. The width of the T-shaped slot 3-1-1 matches the width of the spring contact plate 5. The height of the T-shaped slot 3-1-1 matches the thickness of the spring contact plate 5. The opening of the T-shaped slot 3-1-1 faces forward. A spring sheet accommodating space 3-1-2 is arranged at the bottom of the T-shaped slot 3-1-1. The pressure-bearing assembly 3-2 includes a pressure-bearing platform 3-2-1, a conductive pressure plate 3-2-2, and a guide mechanism 3-2-3. The pressure-bearing platform 3-2-1 is arranged in front of the spring plate holder 3-1 and is located directly below the pressure column 2-2. The guide mechanism 3-2-3 includes a mounting seat 3-2-30, a return spring 3-2-31, and an I-shaped guide block 3-2-32. The mounting seat 3-2-30 is provided with a receiving through hole along the left and right directions. The return spring 3-2-31 and the I-shaped guide block 3-2-32 are all arranged in the accommodating through hole, the reset spring 3-2-31 is arranged at the bottom of the accommodating through hole, the I-shaped guide block 3-2-32 includes two upper and lower horizontal plates and a vertical plate connecting the two horizontal plates, the bottom surface of the lower horizontal plate abuts against the top surface of the reset spring 3-2-31, and a limiting protrusion 3-2-33 is arranged in the middle of the side wall of the accommodating through hole. The limiting protrusion 3-2-33 is located in the space between the upper and lower horizontal plates. Under the action of the reset spring 3-2-31, the lower horizontal plate is The top surface of the plate abuts against the limiting protrusion 3-2-33, and a plug-in plate gap 3-2-34 is provided between the top surface of the I-shaped guide block 3-2-32 and the top wall of the accommodating through hole. A guide mechanism 3-2-3 is provided on each of the left and right sides of the pressure platform 3-2-1. The conductive pressure plate 3-2-2 is arranged between the pressure column 2-2 and the pressure platform 3-2-1 along the left and right directions, and the two ends of the conductive pressure plate 3-2-2 are respectively inserted in the plug-in plate gaps 3-2-34 of the left and right guide mechanisms.

[0026] The cable positioner 4 includes a long wire support platform 4-1 and a cable limit block 4-2. The wire support platform 4-1 is arranged in front of the pressure platform 3-2-1. The top surface of the wire support platform 4-1 is provided with two parallel wire grooves 4-1-1 along the front-back direction. The width of the wire groove 4-1-1 is adapted to the outer diameter of the cable. The cable limit block 4-2 includes a horizontal plate 4-2-1 and two vertical baffles 4-2-2 connected to the bottom surface of the horizontal plate 4-2-1. The thickness of the vertical baffle 4-2-2 is adapted to the width of the wire groove 4-1-1. The horizontal plate 4-2-1 is installed on the top surface of the front part of the wire supporting platform 4-1, and two strip through holes are provided on the horizontal plate 4-2-1 along the front-to-back direction, which are symmetrically arranged on the left and right sides of the wire trough 4-1-1. The cable limit block 4-2 is fixed to the wire supporting platform 4-1 by bolts inserted in the strip through holes, and the two vertical baffles 4-2-2 are respectively inserted in the two wire troughs 4-1-1. When working, the free end of the cable in the wire trough 4-1-1 abuts against the rear end surface of the vertical baffle 4-2-2.

[0027] In this embodiment, the bottom surface of the pressure column 2-2, the top surface of the pressure platform 3-2-1, and the top and bottom surfaces of the conductive pressure plate 3-2-2 are all provided with tooth-shaped protrusions. The tooth-shaped protrusions are conducive to creating multiple pits for the pipe sleeve 7 when squeezing the pipe sleeve 7, increasing the friction between the pipe sleeve 7 and the joint and cable end disposed therein, and promoting the connection firmness of the cable 6 and the contact spring assembly.

[0028] When the contact spring assembly cable crimping device of the embodiment is used, the four cable heads are respectively inserted into the four cable connectors of the contact spring plate 5 in advance, and then a tube sleeve 7 is respectively sleeved outside the four cable connectors, and then the contact spring plate 5 is sideways so that the tube sleeve 7 points forward, and the contact spring plate 5 is inserted from the upper end of the T-shaped slot 3-1-1. When the bottom side end of the contact spring plate 5 abuts against the machine table 1, the tube sleeves 7 on the two lower cable connectors abut against the top surface of the pressure-bearing platform 3-2-1. At this time, the spring sheet is located in the spring sheet accommodating space 3-1-2, and the T-shaped slot 3-1-1 realizes the positioning and fixing of the contact spring plate 5 in the front-back and left-right directions. The other ends of the four cables 6 also enter the wire groove 4-1-1 of the cable positioner 4. The cable 6 is limited in the left and right directions of the wire groove 4-1-1, and the position of the cable limit block 4-2 is adjusted so that the end of the cable 6 abuts against the vertical baffle 4 -2-2, the length (front and back) direction of the cable 6 is limited, the conductive pressure plate 3-2-2 is inserted into the plug-in gap 3-2-34 of the left guide mechanism 3-2-3, and passes between the upper and lower groups of pipe sleeves 7, and is inserted into the plug-in gap 3-2-34 of the right guide mechanism, the top and bottom surfaces of the conductive pressure plate 3-2-2 respectively abut against the upper and lower groups of pipe sleeves 7, the cylinder 2-1 is started, the cylinder 2-1 drives the pressure column 2-2 to descend, the bottom end surface of the pressure column 2-2 abuts against the two upper pipe sleeves 7, the pipe sleeves 7 transmit the pressure to the conductive pressure plate 3-2-2, the conductive pressure plate 3-2-2 squeezes the two lower pipe sleeves 7, the two lower pipe sleeves 7 are supported by the pressure platform 3-2-1, the four pipe sleeves 7 are squeezed at the same time and deformed, the pits formed on the pipe sleeve walls lock the joints and cable ends inserted in the pipe sleeves 7. When the conductive pressure plate 3-2-2 moves downward, the I-shaped guide block 3-2-32 is pressed downward, and the reset spring 3-2-31 is squeezed. When the bottom surface of the upper horizontal plate of the I-shaped guide block 3-2-32 abuts against the limiting protrusion 3-2-33, it cannot move downward, which can prevent the pressure column 2-2 from moving downward too much and causing overpressure. After the crimping is completed, the cylinder 2-1 drives the pressure column 2-2 upward, the reset spring 3-2-31 stretches, and the I-shaped guide block 3-2-32 lifts and resets the conductive pressure plate 3-2-2. The conductive pressure plate 3-2-2 is pulled out of the guide mechanism 3-2-3, and the contact spring group that has been crimped can be taken out. The contact spring group cable crimping device of the utility model can crimp 4 pipe sleeves 7 (cable joints) at a time, with high work efficiency. The cylinder 2-1 is used to drive the pressure column 2-2 downward, and the stroke is controllable, thereby improving the crimping quality. The crimping device has the advantages of simple structure, easy operation and high crimping quality.

Claims

1. A contact spring assembly cable crimping device, characterized in that: Including a pressing mechanism and positioning tooling installed on the machine, The pressing mechanism comprises a pressing column connected to the cylinder and driven by the cylinder to move up and down; The positioning tool comprises a spring assembly positioner and a cable positioner, The spring assembly positioner includes a spring plate fixer and a pressure-bearing component. The spring plate fixer is arranged at the rear of the machine platform. The front end surface of the spring plate fixer is provided with a T-shaped slot in the vertical direction. The width of the T-shaped slot is adapted to the width of the contact spring plate, and the height of the T-shaped slot is adapted to the thickness of the contact spring plate. The T-shaped slot opens forward, and a spring accommodation space is provided at the bottom of the T-shaped slot; the pressure-bearing component includes a pressure-bearing platform, a conductive pressure plate, and a guide mechanism. The pressure-bearing platform is arranged in front of the spring plate fixer and is located directly below the pressure column. The guide mechanism includes a mounting seat, a reset spring, and an I-shaped guide block. The mounting seat is provided with an accommodating through hole in the left and right directions. The reset spring and the I-shaped guide block are both provided with In the accommodating through hole, a reset spring is arranged at the bottom of the accommodating through hole, the I-shaped guide block comprises an upper and lower transverse plates and a vertical plate connecting the two transverse plates, the bottom surface of the lower transverse plate abuts against the top surface of the reset spring, a limiting protrusion is arranged in the middle of the side wall of the accommodating through hole, the limiting protrusion is located in the space between the upper and lower transverse plates, under the action of the reset spring, the top surface of the lower transverse plate abuts against the limiting protrusion, a plug-in plate gap is arranged between the top surface of the I-shaped guide block and the top wall of the accommodating through hole, a guide mechanism is respectively arranged on the left and right sides of the pressure platform, the conduction pressure plate is arranged between the pressure column and the pressure platform along the left and right directions, and the two ends of the conduction pressure plate are respectively inserted in the plug-in plate gaps of the left and right guide mechanisms, The cable positioner includes a long wire supporting platform and a cable limiting block. The wire supporting platform is arranged in front of the pressure platform. The top surface of the wire supporting platform is provided with two parallel wire grooves in the front-to-back direction. The width of the wire grooves is adapted to the outer diameter of the cable. The cable limiting block includes a horizontal plate and two vertical baffles connected to the bottom surface of the horizontal plate. The thickness of the vertical baffles is adapted to the width of the wire groove. The horizontal plate is installed on the top surface of the front part of the wire supporting platform. The two vertical baffles are respectively inserted in the two wire grooves. When working, the free end of the cable in the wire groove abuts the rear end surface of the vertical baffle.

2. The contact spring assembly cable crimping device according to claim 1, characterized in that: The position of the cable limiting block along the front-rear direction is adjustable.

3. The contact spring assembly cable crimping device according to claim 2, characterized in that: The horizontal plate is provided with a strip-shaped through hole in the front-to-back direction, and the cable limiting block is fixed on the wire supporting platform by means of bolts inserted into the strip-shaped through hole.

4. The contact spring assembly cable crimping device according to claim 3, characterized in that: There are two strip-shaped through holes, which are symmetrically arranged on the left and right sides of the wire slot.

5. The contact spring assembly cable crimping device according to claim 1, characterized in that: The cylinder is a single-axis cylinder.

6. The contact spring assembly cable crimping device according to claim 1, characterized in that: The bottom surface of the pressure column, the top surface of the pressure platform and the top and bottom surfaces of the conductive pressure plate are all provided with tooth-shaped protrusions.

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