WO2020182133A1

WO2020182133A1 - Resistance substrate clamp

Info

Publication number: WO2020182133A1
Application number: PCT/CN2020/078691
Authority: WO
Inventors: 许根夫; 谢永良; 陆志华
Original assignee: 深圳市杰普特光电股份有限公司
Priority date: 2019-03-11
Filing date: 2020-03-11
Publication date: 2020-09-17
Also published as: CN109877736A

Abstract

Disclosed is a resistance substrate clamp, comprising a bearing mechanism, a positioning mechanism connected to the bearing mechanism, and a bonding mechanism connected to the bearing mechanism, wherein the bearing mechanism comprises a carrier and a panel mounted on the carrier; the panel contains a main bearing part; the panel is connected to several orientation members corresponding to an edge of the main bearing part; the positioning mechanism is used for pushing a resistance substrate such that the resistance substrate is bonded to the orientation members; the bonding mechanism comprises at least two side pressing assemblies arranged corresponding to the panel; a side pressing assembly comprises a guide block connected to the bearing mechanism, a side connecting block slidably connected to the guide block, a pressing plate connected to the side connecting block, and a first elastic member connected to the bearing mechanism; the pressing plate is arranged corresponding to the edge of the main bearing part; and the first elastic member is further connected to the side connecting block. The pressing plate is pressed against the edge of the main bearing part by means of the tension of the first elastic member, and the pressing plate makes an edge of the resistance substrate be bonded to the main bearing part, such that the resistance substrate and the panel are excellently bonded, thereby reducing a deviation caused by the bending of the resistance substrate, and improving the resistance repair quality.

Description

Resistor substrate fixture

Technical field

The invention relates to resistance repairing technology, in particular to a resistance substrate clamp.

Background technique

With the development of electronic material technology, resistance elements tend to be miniaturized. Some types of resistors are made by vapor-depositing materials with a certain resistivity on the surface of insulating materials through evaporation-like methods. Generally, the insulating material commonly used for this type of resistor is a ceramic substrate. Due to the miniaturization requirements of resistors, the resistor substrate is getting thinner and thinner. However, when the thickness of the resistor substrate is too small, the resistor substrate is prone to bend to a certain extent, resulting in the substrate cannot be flatly attached to the surface of the fixture during the repair process. The resistance volume on the resistance substrate is small, and the slight bending of the substrate will bring about a large deviation in the positioning of the resistance, thereby affecting the quality of the resistance repair.

Summary of the invention

Based on this, it is necessary to provide a resistor substrate clamp for the problem that the substrate cannot be smoothly attached to the surface of the clamp during the resistance trimming process.

A resistor substrate clamp, comprising: a bearing mechanism, a positioning mechanism connected to the bearing mechanism, and a bonding mechanism connected to the bearing mechanism; the bearing mechanism includes a carrier and a panel installed on the carrier; The panel includes a main supporting portion; a plurality of orienting members corresponding to the edges of the main supporting portion are connected to the panel; the positioning mechanism is used to push the resistance substrate so that the resistance substrate is attached to the orienting member On; the laminating mechanism includes at least two side pressure components corresponding to the panel; the side pressure components include a guide block connected to the carrying mechanism, a side connecting block slidably connected to the guide block, and a connection The pressure plate of the side connecting block and the first elastic member connected to the supporting mechanism; the pressure plate is arranged corresponding to the edge of the main bearing part; the first elastic member is also connected to the side connecting block.

The resistor substrate clamp mentioned above pushes the resistor substrate through the positioning mechanism. After the edge of the resistor substrate is attached to the orienting member, the positioning of the resistor substrate can be completed; the pressure plate follows the side connecting block to slide relative to the guide block, and the tension of the first elastic member makes the pressure plate press To the edge of the main supporting part, the pressing plate makes the edge of the resistance substrate adhere to the main supporting part, so that the resistance substrate and the panel are well bonded, reducing the deviation caused by the bending of the resistance substrate, and improving the quality of resistance repair.

In one of the embodiments, the side connecting block is sleeved on the guide block, a guide groove is provided on the outer side of the guide block, and a guide piece corresponding to the guide groove is connected to the inner side of the side connecting block The guide member is accommodated in the guide groove, and the number of the guide members accommodated in the same guide groove is at least two.

In one of the embodiments, the extending direction of the guide groove is inclined with respect to the surface of the panel.

In one of the embodiments, the side pressure assembly further includes an outer pushing cylinder connected to the carrying mechanism and a bearing plate connected to the side connecting block; the main body of the outer pushing cylinder is fixedly connected to the carrier The bearing plate is arranged corresponding to the piston rod of the external thrust cylinder; one end of the first elastic member is connected to the carrier, and the other end of the first elastic member is connected to the bearing plate.

In one of the embodiments, an inner groove is provided on the inner side of the pressure plate, and the inner groove is arranged corresponding to the edge of the main bearing portion.

In one of the embodiments, the orienting elements are distributed along a right angle; the positioning mechanism includes a positioning cylinder installed on the carrier, an adapter plate installed on the positioning cylinder, and an adapter plate installed on the adapter plate. The sliding seat on the upper sliding seat, a number of push plate members installed on the sliding seat, and a second elastic member connected to the adapter plate; the positioning cylinder drives the adapter plate to distribute right-angle openings along the orientation member Moving in a direction, the push plate is inserted through the panel, the push plate is arranged corresponding to the edge of the main supporting part, and the push plate and the directional element are arranged diagonally at right angles; The sliding seat is rotatably connected with the adapter plate; two ends of the second elastic member are respectively connected with the adapter plate and the carrier.

In one of the embodiments, the adapter plate is provided with a convex post; the sliding seat is provided with a sliding hole, and the convex post is inserted in the sliding hole; the sliding seat is provided in the sliding hole Support cylinder parts are provided on both sides of the, and the push plate is installed on the support cylinder part.

In one of the embodiments, the positioning mechanism further includes a balance bearing member sleeved on the boss; the balance bearing member is accommodated in the sliding seat.

In one of the embodiments, it further includes a direction adjustment mechanism; the bearing mechanism further includes a base and a main bearing connected to the base; the carrier is accommodated in the base; the base includes a lower bottom plate, And the side wall connected to the lower bottom plate; the direction adjustment mechanism includes a motor connected to the side wall, a wheel connected to the motor, a ball member installed on the carrier, and a side wall connected to the carrier The third elastic member; the carrier is rotatably connected to the lower bottom plate through the main bearing member; the ball member is arranged corresponding to the wheel, and the side surface of the wheel and the ball member is opposite to the The output shaft of the motor is arranged obliquely; the third elastic member makes the ball member abut against the side surface of the wheel disc.

In one of the embodiments, the panel is provided with suction grooves on the main supporting portion, and the suction grooves are evenly distributed on the main supporting portion; an air outlet is provided on one side of the panel; The panel is provided with a flow passage communicating with the air suction groove and the air outlet.

Description of the drawings

FIG. 1 is a three-dimensional schematic diagram of a resistor substrate clamp according to a preferred embodiment of the present invention;

FIG. 2 is a three-dimensional schematic diagram of the resistor substrate clamp shown in FIG. 1 at another angle;

3 is an exploded schematic diagram of the three-dimensional schematic diagram shown in FIG. 1;

Figure 4 is a three-dimensional schematic diagram of a side pressing component;

Figure 5 is an exploded schematic diagram of a side pressure component;

Figure 6 is an exploded schematic view of the side pressure component at another angle;

Figure 7 is an exploded schematic diagram of the positioning mechanism in Figure 3;

Figure 8 is a three-dimensional schematic diagram of the resistance substrate clamp after being added to the base and the transfer plate;

9 is an exploded schematic diagram of the resistance substrate clamp shown in FIG. 8 after separating the transfer plate;

Fig. 10 is an exploded schematic view of the resistor substrate clamp shown in Fig. 9 after the base is separated.

detailed description

In order to facilitate the understanding of the present invention, the present invention will be described more fully below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

Please refer to FIG. 1 to FIG. 10, which are a resistor substrate clamp 100 according to a preferred embodiment of the present invention, which is used for positioning and clamping the resistor substrate to cooperate with the resistance repair process. The resistive substrate clamp 100 includes a supporting mechanism 20, a positioning mechanism 30 connected to the supporting mechanism 20, and a bonding mechanism connected to the supporting mechanism 20; the supporting mechanism 20 includes a carrier 21 and a panel 22 mounted on the carrier 21; the panel 22 A main supporting portion 222 is included; a number of orienting members 221 corresponding to the edges of the main supporting portion 222 are connected to the panel 22; the positioning mechanism 30 is used to push the resistance substrate so that the resistance substrate is attached to the orienting member 221; the bonding mechanism includes at least Two side pressure components 50 corresponding to the panel 22; the side pressure components 50 include a guide block 51 connected to the bearing mechanism 20, a side connecting block 52 slidably connected to the guide block 51, a pressure plate 53 connected to the side connecting block 52, and a connecting bearing The first elastic member 54 of the mechanism 20; the pressing plate 53 is arranged corresponding to the edge of the main supporting portion 222; the first elastic member 54 is also connected to the side connecting block 52.

The resistive substrate is pushed by the positioning mechanism 30, and after the edge of the resistive substrate is attached to the orienting member 221, the positioning of the resistive substrate can be completed; the pressure plate 53 follows the side connecting block 52 to slide relative to the guide block 51, and the tension of the first elastic member 54 makes the pressure plate 53 presses against the edge of the main supporting portion 222, and the pressing plate 53 makes the edge of the resistance substrate adhere to the main supporting portion 222, so that the resistance substrate and the panel 22 are well bonded, the deviation caused by the bending of the resistance substrate is reduced, and the quality of resistance repair is improved.

4-6, in one of the embodiments, in order to realize the sliding connection between the side connecting block 52 and the guide block 51, and to improve the compactness of the side pressing assembly 50, the side connecting block 52 is sleeved on the guide block 51 , The guide block 51 is provided with a guide groove 511 on the outer side, the inner side of the side connecting block 52 is connected with a guide 521 corresponding to the guide groove 511, the guide 521 is accommodated in the guide groove 511, and is accommodated in the same guide groove 511 The number of the guide 521 is at least two; the sliding connection between the side block 52 and the guide block 51 is realized by the cooperation of the guide 521 and the guide groove 511; further, the bearing is installed inside the pin-shaped guide 521, thereby The friction between the guide 521 and the guide block 51 can be reduced; specifically, the guide block 51 is fixedly connected to the carrier 21; in other embodiments, the guide block 51 is connected to the side connecting block without considering the compactness of the structure. 52 can also be connected by sliding rails.

In one of the embodiments, in order to use the pressure plate 53 to provide a component of force perpendicular to the surface of the panel 22 to the resistive substrate, while avoiding the pressure plate 53 from affecting the loading and unloading of the resistive substrate after leaving the surface of the panel 22, the extension direction of the guide groove 511 is relative to the panel 22. The surface is inclined; so that the pressing plate 53 moves away from the edge of the main supporting portion 222 in the horizontal direction while leaving the surface of the panel 22 in the vertical direction, so as to avoid affecting the picking and placing of the resistive substrate.

In one of the embodiments, after finishing the resistance repair process on the resistance substrate, in order to realize that the pressure plate 53 automatically leaves the panel 22, the side pressure assembly 50 further includes an external cylinder 55 connected to the bearing mechanism 20 and a side connecting block 52. Pushing plate 56; the main body of the outer pushing cylinder 55 is fixedly connected to the carrier 21, and the pushing plate 56 is arranged corresponding to the piston rod of the outer pushing cylinder 55; one end of the first elastic member 54 is connected to the carrier 21, the first elastic member 54 The other end is connected to the bearing plate 56; when the outer pushing cylinder 55 is contracted, it receives the pulling force of the first elastic member 54, and the pressing plate 53 shrinks to the edge of the main bearing portion 222, so that the edge of the resistor substrate and the main bearing portion 222 When the outer pushing cylinder 55 is stretched, the piston rod of the outer pushing cylinder 55 pushes the thrust plate 56, so that the pressing plate 53 is away from the edge of the main bearing portion 222; in order to facilitate the first elastic member 54 and the thrust For the connection of the plate 56, the outer end of the first elastic member 54 is provided with a bayonet pin, and the bayonet pin is located outside the thrust plate 56.

In one of the embodiments, in order to improve the compactness and ensure the mechanical strength of the pressure plate 53, an inner groove 531 is provided on the inner side of the pressure plate 53, and the inner groove 531 is arranged corresponding to the edge of the main bearing portion 222; when the pressure plate 53 is contracted, the resistance The edge of the base plate and the edge of the main supporting portion 222 are just received in the inner groove 531; by providing the inner groove 531, the vertical extension length of the side connecting block 52 can be reduced, and the compactness can be improved; The part above the groove 531 abuts the resistance substrate. Since the length of the horizontal extension of the inner groove 531 is short, the overall thickness of the pressing plate 53 remains unchanged, which ensures the mechanical strength of the pressing plate 53.

Referring to FIG. 7, in one of the embodiments, the resistive substrate is pushed by the positioning mechanism 30, so that the edge of the resistive substrate is attached to the orienting member 221, and the orientating members 221 are distributed along a right angle; the positioning mechanism 30 includes the mounting on the carrier 21 The positioning cylinder 31 on the positioning cylinder 31, the adapter plate 32 installed on the positioning cylinder 31, the sliding seat 33 installed on the adapter plate 32, a number of push plate members 34 installed on the sliding seat 33, and the connecting adapter plate 32 The second elastic member 35; the positioning cylinder 31 drives the adapter plate 32 to move along the direction of the opening of the orientation member 221 at a right angle. The push plate 34 penetrates through the panel 22, and the push plate 34 is arranged corresponding to the edge of the main bearing portion 222, And the push plate member 34 and the orienting member 221 are arranged diagonally at right angles; the sliding seat 33 is rotatably connected with the adapter plate 32; the two ends of the second elastic member 35 are respectively connected with the adapter plate 32 and the carrier 21; in the positioning cylinder When 31 stretches, the push plate 34 moves away from the orienting element 221, so that the resistance substrate can be easily taken out on the panel 22; when the positioning cylinder 31 contracts, the adapter plate 32 and the push plate 34 move closer to the orienting element 221 At the same time, the resistance substrate is pushed so that the resistance substrate is attached to the orienting member 221.

In one of the embodiments, in order to balance the force of the push plate member 34 on the resistance substrate, the adapter plate 32 is provided with a protruding post 321; the sliding seat 33 is provided with a sliding hole 331, and the protruding post 321 penetrates the sliding hole 331 The sliding seat 33 is provided with a support tube portion 332 on both sides of the sliding hole 331, and the push plate member 34 is installed on the support tube portion 332; thus through the push plate member 34 on the two support tube portions 332 from different directions The resistive substrate provides pushing, so that the resistive substrate can be attached to the orienting member 221 in different directions; since the sliding seat 33 is connected to the adapter plate 32 through the sliding hole 331, it can balance the push plate member 34 in different directions The force caused by the resistance substrate is better attached to the orienting member 221.

In one of the embodiments, in order to reduce the friction between the sliding seat 33 and the adapter plate 32, the positioning mechanism 30 further includes a balance bearing 36 sleeved on the boss 321; the balance bearing 36 is accommodated in the sliding seat 33 in.

10, in one of the embodiments, in order to eliminate the angular deviation of the resistance substrate in the horizontal direction to improve the accuracy of resistance repair, the resistance substrate fixture 100 further includes a direction adjustment mechanism 60; the carrying mechanism 20 further includes a base 23, And the main bearing member 24 connected to the base 23; the carrier 21 is accommodated in the base 23; the base 23 includes a lower bottom plate 231 and a side wall 232 connected to the lower bottom plate 231; the direction adjustment mechanism 60 includes a motor 61 connected to the side wall 232, The wheel 62 connected to the output shaft of the motor 61, the ball member 63 mounted on the carrier 21, and the third elastic member 64 connected to the carrier 21; the carrier 21 is rotatably connected to the lower bottom plate 231 through the main bearing member 24; the ball member 63 is arranged corresponding to the roulette 62, the side of the roulette 62 and the ball member 63 is inclined to the output shaft of the motor 61; the third elastic member 64 makes the ball member 63 abut against the side of the roulette 62; because the carrier 21 passes through the main The bearing member 24 is rotatably connected with the lower bottom plate 231, and the side surfaces corresponding to the wheel 62 and the ball member 63 are inclined to the output shaft of the motor 61. When the motor 61 drives the wheel 62 to rotate, the distance between the ball member 63 and the main body of the motor 61 changes. , Thereby accurately adjusting the angle of the panel 22 relative to the base 23; specifically, the third elastic member 64 is a spring, and both ends of the third elastic member 64 are connected to the carrier 21 and the base 23 respectively.

Referring to Figures 8 and 9, in one of the embodiments, since the predetermined direction of the trimming laser light is perpendicular to the horizontal direction, in order to adjust the level of the panel 22 and ensure the accuracy of the trimming, the carrying mechanism 20 also includes a transfer plate 25, And a number of horizontal adjustment components 26 connected to the transfer plate 25; the horizontal adjustment component 26 includes a hollow screw 261 passing through the lower bottom plate 231 and an inner screw 262 passing through the hollow screw 261; the base 23 is set above the transfer plate 25, The hollow screw 261 is threadedly connected to the base 23, and the inner screw 262 is threadedly connected to the transfer plate 25; specifically, the level adjustment components 26 are evenly distributed on the corners of the lower bottom plate 231. Before tightening the inner screw 262, each hollow screw is rotated 261. Adjust the distance between different parts of the base 23 and the transfer plate 25 to adjust the levelness of the panel 22. After adjusting the hollow screw 261, tighten the inner screw 262 while keeping the angle of the hollow screw 261 unchanged. The position and angle of the hollow screw 261 are locked to complete the level adjustment of the panel 22.

In one of the embodiments, in order to improve the flatness of the resistance substrate and prevent the resistance substrate from sliding relative to the panel 22 during the resistance repair process, the panel 22 is provided with an air extraction groove 223 on the main support portion 222, and the air extraction groove 223 is located on the main support Is evenly distributed on the portion 222; one side of the panel 22 is provided with an air outlet 224; the panel 22 is provided with a flow channel connecting the air extraction groove 223 and the air outlet 224; through the air extraction groove 223 to each part of the bottom surface of the resistance substrate Adsorption, so that the resistance substrate is better attached to the panel 22, and the flatness of the resistance substrate is improved.

Specifically, the main supporting portion 222 is disposed corresponding to the resistance substrate. In order to reduce the friction between the resistance substrate and the orienting element 221 during the positioning process, the orienting element 221 is a bearing. In other embodiments, the orienting element 221 may be a pin.

In order to limit the stroke of the side connecting block 52 and to prevent the guide 521 from leaving the guide groove 511, the panel 22 is provided with a through groove 225 on the outside of the main bearing portion 222, and the side connecting block 52 is inserted in the corresponding through groove 225. The width corresponds to the moving range of the side connecting block 52; due to the restriction of the through slot 225, it is avoided that the side connecting block 52 moves too far, causing the guide 521 to leave the guide slot 511.

In this embodiment, the two side pressing components 50 are arranged oppositely on both sides of the main supporting portion 222. In other embodiments, the side pressing components 50 may also be arranged in multiples to improve the flatness of the resistance substrate; further, To prevent the orientation member 221 or the push plate member 34 from affecting the movement of the pressure plate 53, the pressure plate 53 is provided with a groove 532 corresponding to the orientation member 221 or the push plate member 34.

Please refer to FIG. 6, further, in order to facilitate the confirmation of whether the pressing plate 53 is in the folded state, the laminating mechanism further includes a folding detection assembly 70 connected to the side pressing assembly 50, and the folding detection assembly 70 includes a stopper connected to the side connecting block 52 71. And the sensor 72 connected to the carrier 21; the baffle 71 and the sensor 72 are arranged correspondingly.

In this embodiment, the resistance substrate is pushed by the positioning mechanism, and after the edge of the resistance substrate is attached to the orienting member, the positioning of the resistance substrate can be completed; the pressure plate follows the side connecting block to slide relative to the guide block, and the tension of the first elastic member makes the pressure plate press To the edge of the main supporting part, the pressing plate makes the edge of the resistance substrate adhere to the main supporting part, so that the resistance substrate and the panel are well bonded, reducing the deviation caused by the bending of the resistance substrate, and improving the quality of resistance repair.

The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, All should be considered as the scope of this specification.

The above-mentioned embodiments only express several embodiments of the present invention, and the descriptions are more specific and detailed, but they should not be understood as limiting the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

A resistor substrate clamp, characterized in that it comprises: a bearing mechanism, a positioning mechanism connected to the bearing mechanism, and a laminating mechanism connected to the bearing mechanism; the bearing mechanism includes a carrier and is mounted on the carrier The panel includes a main supporting part; the panel is connected with a number of orienting members corresponding to the edge of the main supporting part; the positioning mechanism is used to push the resistance substrate so that the resistance substrate is attached to The orientation member; the laminating mechanism includes at least two side pressure components corresponding to the panel; the side pressure components include a guide block connected to the carrying mechanism, and a side connection slidably connected to the guide block Block, a pressure plate connected to the side connecting block, and a first elastic piece connected to the carrying mechanism; the pressure plate is arranged corresponding to the edge of the main bearing part; the first elastic piece is also connected to the side connecting block connection.
The resistor substrate clamp according to claim 1, wherein the side connecting block is sleeved on the guide block, a guide groove is provided on the outer side of the guide block, and the inner side of the side connecting block is connected with The guide member corresponding to the guide groove, the guide member is accommodated in the guide groove, and the number of the guide members accommodated in the same guide groove is at least two.
The resistor substrate clamp of claim 2, wherein the extending direction of the guide groove is inclined with respect to the surface of the panel.
The resistance substrate clamp according to claim 3, wherein the side pressing assembly further comprises an external pushing cylinder connected to the carrying mechanism and a bearing plate connected to the side connecting block; The main body is fixedly connected to the carrier, and the bearing plate is arranged corresponding to the piston rod of the external thrust cylinder; one end of the first elastic member is connected to the carrier, and the other end of the first elastic member is connected The bearing plate.
The resistance substrate clamp according to claim 1, wherein an inner groove is provided on the inner side of the pressing plate, and the inner groove is arranged corresponding to the edge of the main supporting portion.
The resistance substrate clamp according to claim 1, wherein the orientation members are distributed along a right angle; the positioning mechanism includes a positioning cylinder installed on the carrier, and an adapter plate installed on the positioning cylinder , A sliding seat installed on the adapter plate, a number of push plate members installed on the sliding seat, and a second elastic member connected to the adapter plate; the positioning cylinder drives the adapter plate along The orientation member moves in a right-angled opening direction, the push plate member passes through the panel, the push plate member is arranged corresponding to the edge of the main supporting portion, and the push plate member is connected to the orientation The components are distributed at right angles and diagonally; the sliding seat is rotatably connected with the adapter plate; the two ends of the second elastic component are respectively connected with the adapter plate and the carrier.
The resistance substrate clamp according to claim 6, wherein the adapter plate is provided with a convex post; the sliding seat is provided with a sliding hole, and the convex post is inserted in the sliding hole; The sliding seat is provided with a supporting cylinder portion on both sides of the sliding hole, and the pushing plate member is installed on the supporting cylinder portion.
The resistance substrate clamp according to claim 7, wherein the positioning mechanism further comprises a balance bearing member sleeved on the boss; the balance bearing member is accommodated in the sliding seat.
The resistance substrate clamp according to claim 1, further comprising a direction adjustment mechanism; the carrying mechanism further comprises a base and a main bearing connected to the base; the carrier is accommodated in the base The base includes a lower bottom plate, and a side wall connected to the lower bottom plate; the direction adjustment mechanism includes a motor connected to the side wall, a wheel connected to the motor, and a ball member mounted on the carrier , And a third elastic member connected to the carrier; the carrier is rotatably connected with the lower bottom plate through the main bearing member; the ball member is arranged corresponding to the wheel, and the wheel is connected to the The corresponding side surface of the ball member is arranged obliquely with respect to the output shaft of the motor; the third elastic member makes the ball member abut against the side surface of the wheel disc.
The resistor substrate clamp according to claim 1, wherein the panel is provided with an air extraction groove on the main supporting part, and the air extraction grooves are evenly distributed on the main supporting part; One side is provided with an air outlet; the panel is provided with a flow passage connecting the air suction groove and the air outlet.