Assembly jig

Abstract

The application discloses an assembling jig, which comprises a supporting mechanism and a clamping mechanism. The supporting mechanism comprises a supporting plate for placing a first workpiece. The clamping mechanism comprises a driving assembly and a plurality of clamping assemblies. The driving assembly is used for controlling the clamping assemblies to clamp or release a second workpiece. The clamping mechanism is configured to be pressed on one side of the supporting mechanism to combine the second workpiece with the first workpiece. The assembling jig provided by the application can realize synchronous clamping positioning and assembling of a plurality of workpieces, and has high assembling efficiency.

Description

Technical Field

[0001] This application relates to the field of product assembly technology, and more particularly to an assembly fixture. Background Technology

[0002] In product manufacturing, small cylindrical parts need to be assembled onto the product. Due to the requirements of product structure, shape, and assembly position, manual assembly is usually used. However, manual assembly is inefficient and has poor precision. Utility Model Content

[0003] In view of this, this application provides an assembly fixture that can improve assembly efficiency.

[0004] An assembly fixture includes a support mechanism and a clamping mechanism. The support mechanism includes a support plate for placing a first workpiece. The clamping mechanism includes a drive assembly and a plurality of clamping assemblies. The drive assembly controls the clamping assemblies to clamp or release a second workpiece. The clamping mechanism is configured to press against one side of the support mechanism to engage the second workpiece with the first workpiece.

[0005] In some embodiments, the drive assembly includes a rotating member, a wedge rod, and a sliding member. The rotating member has a sliding groove extending through it, and the sliding member is located within the sliding groove. The wedge rod is connected to the sliding member. The sliding groove includes a first end and a second end opposite to each other. The distance between the first end and the axis of rotation of the rotating member is smaller than the distance between the second end and the axis of rotation.

[0006] In some embodiments, the clamping mechanism further includes a mounting plate, the mounting plate including a groove and a through hole, the groove including a mounting slot and a guide slot, the rotating member being disposed in the mounting slot, the wedge being disposed in the guide slot, the through hole communicating with the guide slot, and the clamping assembly being disposed within the through hole.

[0007] In some embodiments, the clamping assembly includes a first wedge, a second wedge, and an elastic clamping block. The first wedge is fixedly connected to the second wedge, the elastic clamping block is fixed in the through hole, the second wedge has a groove, the elastic clamping block is partially accommodated in the groove and abuts against the side wall of the groove, the side wall of the groove is inclined, and the elastic clamping block has an opening on the side opposite to the second wedge.

[0008] In some embodiments, the wedge includes a body and at least one fork connected to one end of the body, the height of the fork decreasing linearly away from the rotating member, and a first wedge block having a through groove through which the wedge passes, the height of the through groove decreasing linearly away from the rotating member, the fork portion being located within the through groove.

[0009] In some embodiments, the clamping assembly further includes a first elastic member and a first fixing block, the first fixing block being fixedly connected to the mounting plate, and the first elastic member being elastically abutting between the first wedge and the first fixing block.

[0010] In some embodiments, the clamping assembly further includes a second fixing block and a stop block. The second fixing block has a through cavity extending through the second fixing block. The elastic clamping block and the second wedge block are accommodated in the through cavity. The second fixing block also has a slot that extends through a portion of the sidewall of the second fixing block. The slot and the through cavity are connected. The stop block is used to insert into the slot and fix the elastic clamping block.

[0011] In some embodiments, the support mechanism further includes a first positioning element, which is embedded in the support plate and protrudes from the surface of the support plate, and is used to position the first workpiece.

[0012] In some embodiments, the first positioning element includes a third fixing block, a second elastic component, and a floating pin. The third fixing block is fixed to the surface of the support plate, the floating pin is disposed on the third fixing block, and the second elastic component is received within the floating pin and abuts against the floating pin.

[0013] In some embodiments, the support mechanism further includes a second positioning element, and the mounting plate is further provided with a positioning hole, wherein the second positioning element is disposed on the surface of the support plate and is used to pass through the positioning hole.

[0014] The assembly fixture provided in this application can achieve simultaneous clamping, positioning, and assembly of multiple workpieces, with high assembly accuracy and efficiency. The assembly fixture provided in this application has a simple and stable structure, is easy and convenient to operate, and has a wide range of applications, suitable for the positioning and installation of various similar cylindrical workpieces. Attached Figure Description

[0015] Figure 1 An exploded view of the assembly fixture, the first workpiece, and the second workpiece provided in one embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the clamping mechanism provided in one embodiment of this application.

[0017] Figure 3 This is an exploded view of the clamping mechanism provided in one embodiment of this application.

[0018] Figure 4 This is a partial structural exploded view of the clamping assembly provided in one embodiment of this application.

[0019] Figure 5A partial cross-sectional view of the assembly fixture provided in one embodiment of this application.

[0020] Figure 6 This is an exploded view of the structure of the second fixing block and the second workpiece provided in one embodiment of this application.

[0021] Figure 7 An exploded view of the support mechanism provided in one embodiment of this application.

[0022] Explanation of main component symbols

[0023]

[0024]

[0025]

[0026] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the features in the embodiments of this application can be combined with each other.

[0028] The following description sets forth numerous specific details to provide a thorough understanding of the embodiments of this utility model. The described embodiments are only a portion, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of the embodiments of this utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of this invention pertain. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0030] Please see Figure 1 This application provides an assembly fixture 100, including a support mechanism 10 and a clamping mechanism 20. The support mechanism 10 includes a support plate 11 for positioning a first workpiece 31. The clamping mechanism 20 includes a drive assembly 21 and a plurality of clamping assemblies 22. The drive assembly 21 is used to control the clamping assemblies 22 to clamp or release a second workpiece 32. The clamping mechanism 20 is configured to press against one side of the support mechanism 10, thereby engaging the second workpiece 32 with the first workpiece 31.

[0031] Please see Figure 1 and Figure 3 In some embodiments, the clamping mechanism 20 includes a mounting plate 23, a drive assembly 21, and a plurality of clamping assemblies 22. The mounting plate 23 has a groove 231 and a plurality of through holes 232. The groove 231 penetrates one surface of the mounting plate 23, and the through holes 232 penetrate two opposite surfaces of the mounting plate 23 and communicate with the groove 231. The drive assembly 21 is disposed within the groove 231, and the clamping assemblies 22 are disposed within the through holes 232. The groove 231 is used to limit the drive assembly 21. The through holes 232 are used to limit the clamping assemblies 22, and the through holes 232 penetrate the mounting plate 23 so that the opening 2231 of the clamping assembly 22 for fixing the second workpiece 32 is exposed outside the mounting plate 23, facilitating the installation of the second workpiece 32.

[0032] In some embodiments, the groove 231 includes a mounting groove 231a and a guide groove 231b. The mounting groove 231a is generally circular, and the guide groove 231b is generally rectangular, with the guide groove 231b communicating with the mounting groove 231a.

[0033] Please see Figure 2 and Figure 3 In some embodiments, the drive assembly 21 includes a rotating member 211, a wedge rod 212, and a sliding member 213. The rotating member 211 is disposed in a mounting groove 231a, and the wedge rod 212 is disposed in a guide groove 231b. The rotating member 211 has a sliding groove 211a extending through it, and the sliding member 213 is located within the sliding groove 211a. One end of the wedge rod 212 is connected to the sliding member 213. The sliding groove 211a includes a first end 211b and a second end 211c, the distance between the first end 211b and the axis of rotation of the rotating member 211 is smaller than the distance between the second end 211c and the axis of rotation of the rotating member 211. Rotate the rotating component 211 clockwise or counterclockwise within the plane of the mounting plate 23. The rotating component 211 drives the inclined wedge rod 212 to slide counterclockwise or clockwise along the sliding groove 211a via the sliding component 213, so that the inclined wedge rod 212 moves toward or away from the clamping assembly 22 within the guide groove 231b.

[0034] Please see Figure 3 In some embodiments, the wedge 212 includes a main body 2121 and at least one fork 2122 connected to one end of the main body 2121. The height of the fork 2122 decreases linearly along the direction away from the rotating member 211, i.e., the fork 2122 is wedge-shaped. In this application, the height of the fork 2122 refers to the height of the fork 2122 in the direction parallel to the axis of rotation of the rotating member 211. A connecting hole 2123 is provided at the end of the main body 2121 away from the fork 2122. A sliding member 213 passes through the connecting hole 2123 and the sliding groove 211a to connect the wedge 212 and the rotating member 211.

[0035] Please see Figure 3 , Figure 4 and Figure 5 In some embodiments, the clamping assembly 22 includes a first wedge 221, a second wedge 222, and an elastic clamping block 223. The first wedge 221 has a through groove 221a through which the inclined wedge rod 212 passes. The through groove 221a penetrates a portion of the sidewall and a portion of the bottom surface of the first wedge 221, and the height of the through groove 221a decreases linearly in the direction away from the rotating member 211. In this application, the height of the through groove 221a refers to its height in a direction parallel to the axis of rotation of the rotating member 211. The first wedge 221 is fixedly connected to the second wedge 222, and the projection of the second wedge 222 in a direction parallel to the axis of rotation of the rotating member 211 does not cover the through groove 221a. The elastic clamping block 223 is located on the side of the second wedge 222 opposite to the first wedge 221 and abuts against the second wedge 222. The elastic clamping block 223 is fixed within a through hole 232, and the second wedge 222 has a groove 222a. The elastic clamping block 223 is partially accommodated in the groove 222a and abuts against the side wall of the groove 222a. The side wall of the groove 222a is inclined. The elastic clamping block 223 has an opening 2231 on the side away from the second wedge block 222.

[0036] In this embodiment, the elastic clamping block 223 includes two opposing clamping blocks 223a, which together form an opening 2231 for mounting the second workpiece 32. The contact surface 223b between the clamping block 223a and the side wall of the groove 222a is an inclined surface, and the second wedge block 222 presses against the clamping block 223a along the inclined surface. The opening 2231 decreases as the pressure exerted on the clamping block 223a by the second wedge block 222 increases. When the second wedge block 222 moves away from the opening 2231 relative to the clamping block 223a, that is, when the pressure exerted by the second wedge block 222 on the clamping block 223a decreases, the pressure exerted on the two clamping blocks 223a decreases. Due to the elasticity of the elastic clamping block 223 itself, the two clamping blocks 223a move in opposite directions, and the opening 2231 becomes larger. Similarly, when the second wedge 222 moves toward the opening 2231 relative to the clamping block 223a, that is, when the pressure of the second wedge 222 on the clamping block 223a increases, it causes the two clamping blocks 223a to move toward each other, and the opening 2231 becomes smaller.

[0037] In some embodiments, one end of the fork tooth 2122 is located within the through groove 221a. When the rotating member 211 is rotated, causing the inclined wedge rod 212 to move away from the rotating member 211, the fork tooth 2122 of the inclined wedge rod 212 further inserts into the through groove 221a. During the further insertion of the fork tooth 2122 into the through groove 221a, due to the increase in the height of the fork tooth 2122 itself, the fork tooth 2122 lifts up the first wedge block 221, that is, causes the first wedge block 221 to move in a direction away from the elastic clamping block 223. Since the first wedge block 221 is fixedly connected to the second wedge block 222, the first wedge block 221 drives the second wedge block 222 to move along the inclined surface in a direction away from the elastic clamping block 223. After the elastic clamping block 223 loses part of the force of the second wedge block 222, due to its own elastic recovery tension, the opening 2231 of the elastic clamping block 223 for placing the second workpiece 32 opens, so that the second workpiece 32 can be placed into the elastic clamping block 223.

[0038] In this embodiment, the first wedge 221 and the second wedge 222 are fixedly connected by a fastener 227. The fastener 227 can be a screw.

[0039] Please see Figure 3 In this embodiment, the inclined wedge 212 contains two forked teeth 2122, and the first wedge block 221 is provided with two through slots 221a, which are arranged opposite to each other. The forked teeth 2122 correspond one-to-one with the through slots 221a. The two forked teeth 2122 and the two through slots 221a are provided to more effectively lift the first wedge block 221, thereby making the opening 2231 of the elastic clamping block 223 larger and making it easier to insert the second workpiece 32 into the elastic clamping block 223.

[0040] Please see Figure 3 and Figure 5 In some embodiments, the clamping assembly 22 further includes a first elastic member 224 and a first fixing block 225, the first fixing block 225 being fixedly connected to the mounting plate 23, and the first elastic member 224 elastically abutting between the first wedge block 221 and the first fixing block 225.

[0041] When the first wedge 221 is lifted by the wedge rod 212, the first wedge 221 compresses the first elastic component 224. Since the first fixing block 225 is fixedly connected to the mounting plate 23, the first elastic component 224 is compressed under the action of the first wedge 221 and the first fixing block 225. When the wedge rod 212 moves towards the rotating component 211, part of the wedge rod 212 leaves the through groove 221a, and the first wedge 221 loses the support of the fork teeth 2122 (the higher part) within the through groove 221a, causing the height of the first wedge 221 to decrease, and the first elastic component 224 to be released. The first wedge 221 presses the second wedge 222 and the elastic clamping block 223 together under the action of the first elastic component 224. The inclined surface of the elastic clamping block 223 is subjected to the radial squeezing force of the second wedge 222 towards the elastic clamping block 223, causing the opening 2231 of the elastic clamping block 223 for placing the second workpiece 32 to shrink and clamp the second workpiece 32.

[0042] Please see Figure 4 In some embodiments, the clamping assembly 22 further includes a second fixing block 226 and a stop block 228. The stop block 228 is located within the through hole 232, and a portion of the second fixing block 226 is exposed outside the through hole 232. The second fixing block 226 has a through cavity 226a extending through the second fixing block 226, in which the elastic clamping block 223 and the second wedge block 222 are accommodated. The second fixing block 226 also has a slot 226b extending through a portion of the sidewall of the second fixing block 226, and the slot 226b communicates with the through cavity 226a. The stop block 228 is used to insert into the slot 226b and fix the elastic clamping block 223. When the stop block 228 is placed into the slot 226b of the second fixing block 226, the stop block 228 abuts against the elastic clamping block 223 to fix the elastic clamping block 223 and the second fixing block 226. When the second wedge 222 moves away from the elastic clamping block 223, the stop block 228 can reduce the risk that the elastic clamping block 223 will not open because of the large friction between it and the second wedge 222, and there is no relative movement between the elastic clamping block 223 and the second wedge 222.

[0043] Please see Figure 1 and Figure 2 In some embodiments, the clamping mechanism 20 further includes a bracket 24 disposed on the mounting plate 23. In this embodiment, the clamping mechanism 20 includes two brackets 24, which are disposed opposite each other on the same surface of the mounting plate 23. The brackets 24 are used by the user to hold the entire clamping mechanism 20 for easy handling and flipping, and the brackets 24 can support the mounting plate 23 on the platform for easy fixing of the second workpiece 32 within the clamping assembly 22.

[0044] Please see Figure 1 and Figure 3 In this embodiment, the drive assembly 21 further includes a fourth fixing block 25 and a handle 26. The fourth fixing block 25 is fixed to the mounting plate 23 and covers the mounting groove 231a. The handle 26 is mounted on the rotating member 211. The fourth fixing block 25 is used to limit the rotating member 211 to reduce the risk of the rotating member 211 disengaging from the mounting groove 231a, and the handle 26 is used to facilitate the rotation of the rotating member 211.

[0045] Please see Figure 7 In some embodiments, the support mechanism 10 further includes a first positioning member 12, which is embedded in the support plate 11 and protrudes from the surface of the support plate 11. The first positioning member 12 is used to position the first workpiece 31. The first workpiece 31 has a hole for assembly with the second workpiece 32. The first positioning member 12 can first position the first workpiece 31 on the support plate 11 through the hole, thereby helping to accurately align the first workpiece 31 and the second workpiece 32.

[0046] Please see Figure 7 In some embodiments, the first positioning member 12 includes a third fixing block 121, a second elastic member 122, and a floating pin 123. The third fixing block 121 is fixed to the surface of the support plate 11. The floating pin 123 is disposed on the third fixing block 121, passes through the support plate 11, and protrudes from the surface of the support plate 11 away from the third fixing block 121. The second elastic member 122 is received within the floating pin 123 and abuts against the floating pin 123. The floating pin 123 is used to insert into the mounting hole 31a of the first workpiece 31 to position the first workpiece 31. When the mounting plate 23 and the support plate 11 are pressed together, the second workpiece 32 is inserted into the mounting hole 31a of the first workpiece 31. The second workpiece 32 presses against the floating pin 123, causing the floating pin 123 and the second elastic member 122 to be pressed back into the support plate 11 so that the second workpiece 32 can be assembled with the first workpiece 31.

[0047] Please see Figure 3 and Figure 7 In some embodiments, the support mechanism 10 further includes a second positioning element 13, and the mounting plate 23 is also provided with a positioning hole 233. The second positioning element 13 is disposed on the surface of the support plate 11 and is used to pass through the positioning hole 233. Through the positioning engagement of the positioning hole 233 and the second positioning element 13, the support plate 11 and the mounting plate 23 are aligned, thereby achieving precise alignment of the first workpiece 31 and the second workpiece 32. In this embodiment, a bushing 234 is embedded in the positioning hole 233. The bushing 234 is used to improve the firmness of the engagement between the second positioning element 13 and the positioning hole 233, and reduce the probability of displacement after the support plate 11 and the mounting plate 23 are aligned.

[0048] Please see Figure 6In some embodiments, the second fixing block 226 is provided with a third positioning member 229, which is used to position the second workpiece 32 and improve the accuracy of assembly.

[0049] The working principle of the assembly fixture 100 provided in this application is as follows: rotating the rotating component 211 causes the fork teeth 2122 of the inclined wedge rod 212 to be inserted into the through groove 221a of the first wedge block 221, so that the first wedge block 221 and the second wedge block 222 move along the surface away from the mounting plate 23. The contact area between the second wedge block 222 and the elastic clamping block 223 becomes smaller, and the force of the second wedge block 222 squeezing the elastic clamping block 223 becomes smaller, so that the opening 2231 of the elastic clamping block 223 opens to place the second workpiece 32. Rotating the rotating component 211 in the opposite direction causes the inclined wedge 212 to move closer to the rotating component 211, causing the first wedge 221 and the second wedge 222 to move towards the elastic clamping block 223. This increases the contact area between the second wedge 222 and the elastic clamping block 223, and increases the force exerted by the second wedge 222 on the elastic clamping block 223, thus narrowing the opening 2231 of the elastic clamping block 223 to clamp the second workpiece 32. The first workpiece 31 is then placed on the support mechanism 10 to complete its positioning. Finally, the clamping mechanism 20 is aligned and pressed against the support mechanism 10 to assemble the second workpiece 32 onto the first workpiece 31.

[0050] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. An assembly fixture, characterized in that, include: A support mechanism includes a support plate for positioning a first workpiece; A clamping mechanism includes a drive assembly and multiple clamping assemblies, wherein the drive assembly controls the clamping assemblies to clamp or release a second workpiece; The clamping mechanism is configured to press against one side of the support mechanism to combine the second workpiece with the first workpiece.

2. The assembly fixture as described in claim 1, characterized in that, The drive assembly includes a rotating component, a wedge rod, and a sliding component. The rotating component has a sliding groove that passes through it. The sliding component is located within the sliding groove. The wedge rod is connected to the sliding component. The sliding groove includes a first end and a second end that are opposite each other. The distance between the first end and the axis of rotation of the rotating component is smaller than the distance between the second end and the axis of rotation.

3. The assembly fixture as described in claim 2, characterized in that, The clamping mechanism further includes a mounting plate, which includes a groove and a through hole. The groove includes a mounting slot and a guide slot. The rotating member is disposed in the mounting slot, the inclined wedge is disposed in the guide slot, the through hole communicates with the guide slot, and the clamping assembly is disposed in the through hole.

4. The assembly fixture as described in claim 3, characterized in that, The clamping assembly includes a first wedge, a second wedge, and an elastic clamping block. The first wedge and the second wedge are fixedly connected. The elastic clamping block is fixed in the through hole. The second wedge has a groove. The elastic clamping block is partially accommodated in the groove and abuts against the side wall of the groove. The side wall of the groove is inclined. The elastic clamping block has an opening on the side opposite to the second wedge.

5. The assembly fixture as described in claim 4, characterized in that, The wedge includes a main body and at least one fork tooth connected to one end of the main body. The height of the fork tooth decreases linearly away from the rotating member. A first wedge block is provided with a through groove through which the wedge tooth passes. The height of the through groove decreases linearly away from the rotating member. The fork tooth portion is located within the through groove.

6. The assembly fixture as described in claim 4, characterized in that, The clamping assembly further includes a first elastic component and a first fixing block. The first fixing block is fixedly connected to the mounting plate, and the first elastic component elastically abuts against the first wedge and the first fixing block.

7. The assembly fixture as described in claim 4, characterized in that, The clamping assembly further includes a second fixing block and a stop block. The second fixing block has a through cavity extending through the second fixing block. The elastic clamping block and the second wedge block are accommodated in the through cavity. The second fixing block also has a slot that extends through a portion of the side wall of the second fixing block. The slot and the through cavity are connected. The stop block is used to insert into the slot and fix the elastic clamping block.

8. The assembly fixture as described in claim 1, characterized in that, The support mechanism further includes a first positioning element, which is embedded in the support plate and protrudes from the surface of the support plate. The first positioning element is used to position the first workpiece.

9. The assembly fixture as described in claim 8, characterized in that, The first positioning component includes a third fixing block, a second elastic component, and a floating pin. The third fixing block is fixed to the surface of the support plate, the floating pin is disposed on the third fixing block, and the second elastic component is housed in the floating pin and abuts against the floating pin.

10. The assembly fixture as described in claim 6, characterized in that, The support mechanism further includes a second positioning element, and the mounting plate is also provided with a positioning hole. The second positioning element is disposed on the surface of the support plate and is used to pass through the positioning hole.

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