Resistor feeding and separating device

Abstract

The utility model discloses a resistor feeding distancing device which comprises a machine frame, a braid feeding mechanism, a resistor feeding mechanism, a resistor distancing mechanism and a resistor carrying mechanism, the braid feeding mechanism, the resistor feeding mechanism, the resistor distancing mechanism and the resistor carrying mechanism are arranged on the machine frame, the resistor feeding mechanism is arranged at the tail end of the braid feeding mechanism, a resistor braid enters the resistor feeding mechanism from the braid feeding mechanism, and the resistor distancing mechanism is arranged on the resistor carrying mechanism. The resistor feeding mechanism is used for sequentially conveying linear pin resistors on a resistor braid to the resistor spacing mechanism in groups, the resistor spacing mechanism is used for spacing each group of linear pin resistors, and the resistor carrying mechanism is used for transferring each group of linear pin resistors subjected to spacing to the next station. The linear pin resistors are grouped and fed through the resistor braid, each group of linear pin resistors are subjected to distance separation through the resistor distance separation mechanism, redundant pins are cut off at the same time, and each group of linear pin resistors subjected to distance separation is transferred to the next station through the resistor carrying mechanism. The whole process is automatically carried out, the structure is simple, and working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of resistor production and manufacturing, in particular to a resistor feeding spacing device. Background Art

[0002] Generally, existing cement resistors generally include a ceramic rod resistor unit encapsulated in a ceramic shell. When the cement resistor is a unidirectional pin structure, the ceramic rod resistor unit is on one side of the ceramic shell, which makes the heat dissipation uneven. In addition, the resistance value that can be achieved by a single ceramic rod resistor unit in a ceramic shell of the same size is relatively small. In view of the above defects, the applicant has previously proposed a new type of cement resistor and its braid. Through two parallel and evenly arranged ceramic rod resistor units, the heat dissipation is good, the distribution is uniform, and the service life is extended. The two ceramic rod resistor units can be used to produce high-resistance products.

[0003] When two ceramic rod resistor units are used, the pins at one end of the two ceramic rod resistor units need to be welded together in advance, and the pins at the other ends are welded to the pins respectively. Currently, the ceramic rod resistor units are grouped manually and placed in a fixture, and the pins are cut and straightened by pin cutting equipment and pin straightening equipment, and then welded in sequence by welding equipment, and finally the materials are unloaded manually, resulting in low production efficiency and unstable quality. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a resistor feeding and spacing device, which can realize automatic feeding and spacing of resistor units and has high production efficiency.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A resistor feeding and spacing device comprises a frame, a braid feeding mechanism arranged on the frame, a resistor feeding mechanism, a resistor spacing mechanism and a resistor moving mechanism, wherein the resistor feeding mechanism is arranged at the end of the braid feeding mechanism, the resistor braid enters the resistor feeding mechanism from the braid feeding mechanism, the resistor feeding mechanism sequentially transports the straight line pin resistors on the resistor braid in groups to the resistor spacing mechanism, the resistor spacing mechanism spacing each group of the straight line pin resistors, and the resistor moving mechanism moves each group of the straight line pin resistors after spacing to the next station.

[0007] Specifically, the braid feeding mechanism includes a feeding bracket and a braid guide plate arranged on the feeding bracket. A group of feeding notches is arranged at one end of the braid guide plate, and an incoming material guide plate is arranged at the other end.

[0008] Optionally, the braiding guide is arranged on the feeding bracket through a feeding adjustment plate, and guide cover plates are arranged on both sides of the braiding guide.

[0009] Specifically, the frame includes a first panel and a second panel, the braiding feeding mechanism and the resistor feeding mechanism are arranged on the first panel, and the resistor spacing mechanism and the resistor moving mechanism are arranged on the second panel.

[0010] Furthermore, the resistor feeding mechanism includes a resistor feeding support, a feeding horizontal cylinder, a feeding vertical cylinder and a feeding gear rack. The feeding vertical cylinder is arranged at the working end of the feeding horizontal cylinder through a feeding vertical mounting seat. The feeding gear rack is installed at the end of the tape guide plate through the feeding vertical cylinder. The holding racks on both sides of the feeding gear rack are arranged at the loading slot, which are used to vertically peel off the straight pin resistors of the resistor tape from the tapes at both ends and transfer them to the resistor spacing mechanism.

[0011] Specifically, a plurality of horizontal feeding guide rods are provided on the upper and lower sides of the horizontal feeding cylinder. The horizontal feeding guide rods are installed on the resistance feeding seat through linear feeding bearings, and the ends of the horizontal feeding guide rods are connected to the vertical feeding mounting seat.

[0012] Furthermore, the resistor spacing mechanism includes a spacing connecting seat plate, a spacing main seat arranged on the spacing connecting seat plate, a spacing workstation slot is arranged in the spacing main seat, a spacing variable distance block and a spacing fixed distance block are arranged in the spacing workstation slot, the spacing variable distance block and the spacing fixed distance block are driven by a spacing cylinder, and a U-shaped holding part is arranged on the upper part of the spacing variable distance block and the spacing fixed distance block for supporting the straight-line pin resistor; the feeding gear rack of the resistor feeding mechanism corresponds to the front end of the spacing workstation slot, and transfers a group of the straight-line pin resistors to the U-shaped holding part.

[0013] Specifically, the dividing and fixing distance block is vertically installed in the dividing and fixing distance slot through a group of fixing distance guide grooves, and the dividing and variable distance block is arranged in contact with the dividing and fixing distance block through a dividing and variable distance guide rod and a variable distance linear bearing. Variable distance pins are respectively arranged on both sides of the dividing and variable distance block, and variable distance guide groove holes are arranged on both sides of the dividing and fixing distance slot corresponding to the variable distance pins.

[0014] Specifically, the spacing cylinder is installed on a spacing cylinder plate, and the spacing cylinder plate is fixed under the spacing main seat through a plurality of spacing cylinder support rods. The spacing cylinder drives the spacing fixed distance block to move vertically back and forth in the fixed distance guide groove, and at the same time drives the spacing variable distance block to move horizontally along the variable distance guide groove hole path on the spacing variable distance guide rod. When reaching the top of the variable distance guide groove hole, the spacing variable distance block and the U-shaped material holding part provided on the upper part of the spacing fixed distance block have the same vertical height and are separated horizontally according to a preset width.

[0015] Furthermore, the resistor spacing mechanism also includes a group of upper cutting tool holders, which are rotatably arranged on both sides of the spacing main seat through a cutting tool holder axis, and are fixed at both ends of the cutting tool holder axis. A cutting knife strip is installed on the upper cutting tool holder, and corresponding to the cutting knife strip, lower cutting tool holders are respectively arranged on both sides of the upper end of the spacing station groove, and a plurality of tooth-shaped cutting grooves are arranged on the cutting knife holder, which are used to support the two end pins of the linear pin resistor and cooperate with the cutting knife strip to cut off the pins.

[0016] Specifically, along the moving direction of the resistor braid, a cutting pin shaft hole is provided at the rear end of the spacing station slot on the spacing main seat for installing the cutting pin tool holder shaft.

[0017] Specifically, the resistor spacing mechanism also includes a cutting cylinder, which is installed on the frame through a cutting cylinder support. The cutting cylinder drives one of the cutting upper tool holders so that the cutting blade cooperates with the toothed cutting groove to cut off the pin.

[0018] Furthermore, the resistor moving mechanism includes a PPU manipulator, a resistor moving frame, and a plurality of clamping cylinders arranged on the resistor moving frame. The PPU manipulator is arranged on the frame through a carrying column. The PPU manipulator is connected to drive the resistor moving frame. The clamping cylinder is provided with a first clamping jaw and a second clamping jaw. The first clamping jaw and the second clamping jaw are provided with a gate-type clamping part. The first clamping jaw and the second clamping jaw open and close to clamp a group of the straight pin resistors in the gate-type clamping part.

[0019] Optionally, the initial position of one of the clamping jaw cylinders is above the spacing station slot, and a group of sensing optical fibers are installed on one side of the clamping jaw cylinder corresponding to the spacing station slot through an optical fiber holder.

[0020] By adopting the above technical solution, the resistor feeding and spacing device of the embodiment of the utility model groups and feeds the linear pin resistors through the resistor braiding tape, separates each group of linear pin resistors through the resistor spacing mechanism, and cuts off the redundant pins at the same time, and the resistor moving mechanism moves each group of linear pin resistors after spacing to the next station. The whole process is automated, with a simple structure and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 This is a front view structural diagram of the resistor feeding spacing device of an embodiment of the utility model;

[0023] Figure 2 The three-dimensional structure of the resistor feeding spacing device of the utility model embodiment Figure 1 ;

[0024] Figure 3 The three-dimensional structure of the resistor feeding spacing device of the utility model embodiment Figure 2 ;

[0025] Figure 4 The three-dimensional structure of the resistor feeding distance device of the embodiment of the utility model Figure 1 ;

[0026] Figure 5 The three-dimensional structure of the resistor feeding distance device of the embodiment of the utility model Figure 2 ;

[0027] Figure 6 A three-dimensional structural diagram of a resistor feeding mechanism according to an embodiment of the utility model;

[0028] Figure 7 The three-dimensional structure of the resistor separation mechanism of the embodiment of the utility model Figure 1 ;

[0029] Figure 8 The three-dimensional structure of the resistor separation mechanism of the embodiment of the utility model Figure 2 ;

[0030] In the figure, 10-frame, 11-first panel, 12-second panel;

[0031] 20-tape feeding mechanism, 21-feeding bracket, 22-feeding adjustment plate, 23-tape guide plate, 231-feeding slot, 24-incoming material guide plate, 25-guide cover plate;

[0032] 30-resistance feeding mechanism, 31-resistance feeding seat, 32-feeding horizontal cylinder, 33-feeding horizontal guide rod, 34-feeding linear bearing, 35-feeding vertical mounting seat, 36-feeding vertical cylinder, 37-feeding gear rack, 371-holding rack;

[0033] 40-resistance spacing mechanism, 41-spacing connection seat plate, 42-spacing adjustment plate, 43-spacing main seat, 431-spacing station slot, 432-cutting foot shaft hole, 433-variable pitch guide slot hole, 434-fixed pitch guide slot; 44-cutting foot tool holder shaft, 45-cutting foot upper tool holder, 46-cutting foot cylinder, 47-cutting foot cylinder support, 48-cutting foot blade, 49-cutting foot lower tool holder, 491-toothed cutting foot slot, 410-spacing variable pitch block, 4101-variable pitch pin shaft, 411-spacing fixed pitch block, 412-U-shaped material holding part, 413-spacing variable pitch guide rod, 414-variable pitch linear bearing, 415-spacing cylinder support rod, 416-spacing cylinder plate, 417-spacing cylinder;

[0034] 50-resistance moving mechanism, 51-resistance moving frame, 52-PPU manipulator, 53-transportation column, 54-gripping cylinder, 55-first gripping jaw, 56-second gripping jaw, 57-door-type clamping part, 58-sensing optical fiber, 59-optical fiber holder;

[0035] 60-resistor tape, 61-straight pin resistor, 62-tape. DETAILED DESCRIPTION

[0036] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Example 1

[0038] like Figure 1-5 As shown, an embodiment of the utility model provides a resistor feeding and spacing device, including a frame 10, a braid feeding mechanism 20 arranged on the frame, a resistor feeding mechanism 30, a resistor spacing mechanism 40 and a resistor moving mechanism 50, wherein the resistor feeding mechanism 30 is arranged at the end of the braid feeding mechanism 20, and the resistor braid 60 enters the resistor feeding mechanism 30 from the braid feeding mechanism 20, and the resistor feeding mechanism 30 groups the straight pin resistors 61 on the resistor braid 60 and transports them to the resistor spacing mechanism 40 in sequence, and the resistor spacing mechanism 40 spaces each group of the straight pin resistors 61, and the resistor moving mechanism 50 moves each group of the straight pin resistors 61 after spacing to the next station.

[0039] Specifically, the braid feeding mechanism 20 includes a feeding bracket 21 and a braid guide plate 23 disposed on the feeding bracket 21 . A group of feeding slots 231 are disposed at one end of the braid guide plate 23 , and an incoming material guide plate 24 is disposed at the other end.

[0040] Optionally, the braiding guide plate 23 is disposed on the feeding bracket 21 through a feeding adjustment plate 22 , and guide cover plates 25 are disposed on both sides of the braiding guide plate 23 .

[0041] Specifically, the frame 10 includes a first panel 11 and a second panel 12 , the braid loading mechanism 20 and the resistor feeding mechanism 30 are arranged on the first panel 11 , and the resistor spacing mechanism 40 and the resistor moving mechanism 50 are arranged on the second panel 12 .

[0042] like Figure 4-6 As shown, the resistor feeding mechanism 30 includes a resistor feeding support 31, a feeding horizontal cylinder 32, a feeding vertical cylinder 36 and a feeding rack 37. The feeding vertical cylinder 36 is arranged at the working end of the feeding horizontal cylinder 32 through a feeding vertical mounting seat 35. The feeding rack 37 is installed at the end of the braid guide plate 23 through the feeding vertical cylinder 36. The holding racks 371 on both sides of the feeding rack 37 are arranged at the loading slot 231, which are used to vertically peel off the straight pin resistors 61 of the resistor braid 60 from the braids 62 at both ends and transfer them to the resistor spacing mechanism 40.

[0043] Specifically, a plurality of feeding horizontal guide rods 33 are provided on the upper and lower sides of the feeding horizontal cylinder 32 . The feeding horizontal guide rods 33 are installed on the resistance feeding seat 31 through feeding linear bearings 34 . The ends of the feeding horizontal guide rods 33 are connected to the feeding vertical mounting seat 35 .

[0044] like Figure 7 , 8 As shown, the resistor spacing mechanism 40 includes a spacing connection seat plate 41, a spacing main seat 43 arranged on the spacing connection seat plate 41, a spacing main seat 43 is provided with a spacing station slot 431, and a spacing variable distance block 410 and a spacing fixed distance block 411 are provided in the spacing station slot 431. The spacing variable distance block 410 and the spacing fixed distance block 411 are driven by a spacing cylinder 417, and a U-shaped holding portion 412 is provided on the upper part of the spacing variable distance block 410 and the spacing fixed distance block 411 for supporting the linear pin resistor 61; the feeding gear rack 37 of the resistor feeding mechanism 30 corresponds to the front end of the spacing station slot 431, and transfers a group of the linear pin resistors 61 to the U-shaped holding portion 412.

[0045] Specifically, the spacing fixing block 411 is vertically installed in the spacing workstation slot 431 through a group of spacing guide grooves 434, and the spacing variable distance block 410 is arranged in contact with the spacing fixing block 411 through a spacing variable distance guide rod 413 and a variable distance linear bearing 414. Variable distance pins 4101 are respectively provided on both sides of the spacing variable distance block 410, and corresponding to the variable distance pins 4101, variable distance guide groove holes 433 are provided on both sides of the spacing workstation slot 431.

[0046] Specifically, the spacing cylinder 417 is installed on a spacing cylinder plate 416, and the spacing cylinder plate 416 is fixed under the spacing main seat 43 through a plurality of spacing cylinder support rods 415. The spacing cylinder 417 drives the spacing fixed distance block 411 to move vertically back and forth in the fixed distance guide groove 434, and at the same time drives the spacing variable distance block 410 to move horizontally along the spacing variable distance guide groove hole 433 path on the spacing variable distance guide rod 413. When reaching the top of the spacing variable distance guide groove hole 433, the spacing variable distance block 410 and the spacing fixed distance block 411 are provided with a U-shaped material holding portion 412 on the upper part with the same vertical height and are separated horizontally according to a preset width.

[0047] like Figure 7 , 8 As shown, the resistor spacing mechanism 40 also includes a set of upper cutting tool holders 45, which are rotatably arranged on both sides of the spacing main seat 43 through a cutting tool holder shaft 44, and the upper cutting tool holders 45 are fixed at both ends of the cutting tool holder shaft 44. The upper cutting tool holders 45 are equipped with cutting blade strips 48, and corresponding to the cutting blade strips 48, lower cutting tool holders 49 are respectively arranged on both sides of the upper end of the spacing station slot 431, and the lower cutting tool holders 49 are provided with a plurality of tooth-shaped cutting grooves 491, which are used to support the two end pins of the linear pin resistor 61 and cooperate with the cutting blade strips 48 to cut the pins. Optionally, the spacing main seat 43 is installed on the spacing connection seat plate 41 through a spacing adjustment plate 42.

[0048] Specifically, along the moving direction of the resistor tape 60 , a cutting pin shaft hole 432 is provided at the rear end of the spacing station slot 431 on the spacing main seat 43 for installing the cutting pin tool holder shaft 44 .

[0049] Specifically, the resistor spacing mechanism 40 also includes a cutting cylinder 46, and the cutting cylinder 46 is installed on the frame 10 through a cutting cylinder support 47. The cutting cylinder 46 drives and connects to drive one of the cutting upper tool holders 45, so that the cutting knife strip 48 cooperates with the toothed cutting groove 491 to cut off the pin.

[0050] like Figure 1-3As shown, the resistor moving mechanism 50 includes a PPU manipulator 52, a resistor moving frame 51, and a plurality of clamping cylinders 54 arranged at both horizontal ends of the resistor moving frame 51; a connecting beam plate 53 is arranged on the upper part of the column 14 to install the PPU manipulator 52; the PPU manipulator 52 is connected to drive the resistor moving frame 51, and the initial positions of the clamping cylinders 54 correspond to the spacing station slots 431 of the resistor spacing mechanism 40 and the positioning support slots 611 of the welding fixture mechanism 60 respectively; the clamping cylinders 64 are provided with a first clamping jaw 55 and a second clamping jaw 56, and the first clamping jaw 55 and the second clamping jaw 56 are provided with a gate-type clamping portion 57, and the first clamping jaw 55 and the second clamping jaw 56 are opened and closed to clamp a group of the straight pin resistors 141 in the gate-type clamping portion 57. The PPU robot 52 is a pick and place unit, and is a pure cam structure transplant robot. Driven by a servo or stepper motor, the actuator runs along a predetermined trajectory. It is mainly used for automatic transmission, feeding and removal of small parts in a cramped space, and is a modular standard product in the industry.

[0051] Optionally, the initial position of the clamping cylinder 54 is above the spacing station slot 431 , and a group of resistance sensing optical fibers 58 are installed on one side of the clamping cylinder 54 corresponding to the spacing station slot 431 through an optical fiber holder 59 .

[0052] The resistor feeding and spacing device of the embodiment of the utility model groups and feeds the linear pin resistors through the resistor braiding tape, separates each group of linear pin resistors through the resistor spacing mechanism, and cuts off the redundant pins at the same time, and the resistor moving mechanism moves each group of linear pin resistors after separation to the next station. The whole process is automated, with a simple structure and high work efficiency.

[0053] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A resistor feeding spacing device, characterized in that: The invention comprises a frame, a braid feeding mechanism arranged on the frame, a resistor feeding mechanism, a resistor spacing mechanism and a resistor moving mechanism. The resistor feeding mechanism is arranged at the end of the braid feeding mechanism. The resistor braid enters the resistor feeding mechanism from the braid feeding mechanism. The resistor feeding mechanism transports the straight-line pin resistor groups on the resistor braid to the resistor spacing mechanism in sequence. The resistor spacing mechanism spaces each group of the straight-line pin resistors. The resistor moving mechanism moves each group of the straight-line pin resistors after spacing to the next station.

2. The resistor feeding spacing device according to claim 1, characterized in that: The braiding feeding mechanism comprises a feeding bracket and a braiding guide plate arranged on the feeding bracket. A group of feeding notches is arranged at one end of the braiding guide plate, and an incoming material guide plate is arranged at the other end.

3. The resistor feeding spacing device according to claim 2, characterized in that: The resistor feeding mechanism includes a resistor feeding support, a horizontal feeding cylinder, a vertical feeding cylinder and a feeding gear rack. The vertical feeding cylinder is arranged at the working end of the horizontal feeding cylinder through a vertical feeding mounting seat. The feeding gear rack is installed at the end of the braid guide plate through the vertical feeding cylinder. The holding racks on both sides of the feeding gear rack are arranged at the loading slot, which are used to vertically peel off the straight pin resistors of the resistor braid from the braids at both ends and transfer them to the resistor spacing mechanism.

4. The resistor feeding spacing device according to claim 3, characterized in that: A plurality of feeding horizontal guide rods are also arranged on the upper and lower sides of the feeding horizontal cylinder. The feeding horizontal guide rods are installed on the resistance feeding seat through feeding linear bearings, and the ends of the feeding horizontal guide rods are connected to the feeding vertical mounting seat.

5. The resistor feeding spacing device according to claim 1, characterized in that: The resistor spacing mechanism includes a spacing connection seat plate, a spacing main seat arranged on the spacing connection seat plate, a spacing workstation slot is arranged in the spacing main seat, a spacing variable distance block and a spacing fixed distance block are arranged in the spacing workstation slot, the spacing variable distance block and the spacing fixed distance block are driven by a spacing cylinder, and a U-shaped holding part is arranged on the upper part of the spacing variable distance block and the spacing fixed distance block for supporting the straight-line pin resistor; the feeding gear rack of the resistor feeding mechanism corresponds to the front end of the spacing workstation slot, and transfers a group of the straight-line pin resistors to the U-shaped holding part.

6. The resistor feeding spacing device according to claim 5, characterized in that: The dividing and fixing distance block is vertically installed in the dividing and fixing distance slot through a group of fixing distance guide grooves. The dividing and variable distance block is arranged in contact with the dividing and fixing distance block through a dividing and variable distance guide rod and a variable distance linear bearing. Variable distance pins are respectively arranged on both sides of the dividing and variable distance block, and variable distance guide groove holes are arranged on both sides of the dividing and fixing distance slot corresponding to the variable distance pins.

7. The resistor feeding spacing device according to claim 6, characterized in that: The spacing cylinder is installed on a spacing cylinder plate, and the spacing cylinder plate is fixed under the spacing main seat through a plurality of spacing cylinder support rods. The spacing cylinder drives the spacing fixed distance block to move vertically back and forth in the fixed distance guide groove, and at the same time drives the spacing variable distance block to move horizontally along the variable distance guide groove hole path on the spacing variable distance guide rod. When reaching the top of the variable distance guide groove hole, the spacing variable distance block and the U-shaped material holding part provided on the upper part of the spacing fixed distance block have the same vertical height and are separated horizontally according to a preset width.

8. The resistor feeding spacing device according to claim 5, characterized in that: The resistor spacing mechanism also includes a group of upper cutting tool holders, which are rotatably arranged on both sides of the spacing main seat through a cutting tool holder shaft, and are fixed at both ends of the cutting tool holder shaft. A cutting knife strip is installed on the upper cutting tool holder, and corresponding to the cutting knife strip, lower cutting tool holders are respectively arranged on both sides of the upper end of the spacing station slot, and a plurality of tooth-shaped cutting grooves are arranged on the cutting knife holder, which are used to support the two end pins of the linear pin resistor and cooperate with the cutting knife strip to cut off the pins.

9. The resistor feeding spacing device according to claim 8, characterized in that: The resistor spacing mechanism also includes a cutting cylinder, which is installed on the frame through a cutting cylinder support. The cutting cylinder drives one of the cutting upper tool holders so that the cutting blade cooperates with the toothed cutting groove to cut off the pin.

10. The resistor feeding spacing device according to claim 1, characterized in that: The resistor moving mechanism includes a PPU manipulator, a resistor moving frame, and a plurality of clamping cylinders arranged on the resistor moving frame. The PPU manipulator is arranged on the frame through a carrying column. The PPU manipulator is connected to drive the resistor moving frame. The clamping cylinder is provided with a first clamping jaw and a second clamping jaw. The first clamping jaw and the second clamping jaw are provided with a gate-type clamping part. The first clamping jaw and the second clamping jaw open and close to clamp a group of the straight-line pin resistors in the gate-type clamping part.

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