Positioning clamp

Abstract

The embodiment of the invention discloses a positioning clamp. The positioning clamp comprises a base plate, a first positioning assembly, a second positioning assembly, two third positioning assemblies, a pressing block assembly, a pushing block assembly, a first limiting stopper and a second limiting stopper. When the pressing block assembly moves downwards to the first position, the pressing block assembly pushes the first limiting stopper to move downwards to be separated from the pressing block assembly, and at the moment, the second positioning assembly moves towards the first positioning assembly in the first direction; when the pressing block assembly continues to move downwards to the second position, the pressing block assembly pushes the second limiting stopper to move downwards to be separated from the pressing block assembly, and the pushing block assembly moves towards the first positioning assembly in the first direction and pushes the two third positioning assemblies to move oppositely in the second direction at the same time. According to the positioning clamp, step-by-step positioning of a product in the X direction and the Y direction can be achieved by continuously pressing the pressing block assembly, operation is easy, and cost is low.

Description

Technical Field

[0001] This invention relates to the field of clamping technology, and more specifically to a positioning clamp. Background Technology

[0002] Positioning fixtures are widely used in machining, assembly inspection, and automated production. Their main function is to precisely constrain the position of a product in space to ensure the accuracy and consistency of subsequent processes. When positioning a product in the X-axis (horizontal transverse) and Y-axis (horizontal longitudinal) directions, traditional positioning fixtures typically rely on multiple independent drive components to achieve positioning actions in different directions. For example, X-axis positioning often uses a drive mechanism such as a cylinder, electric actuator, or servo slide to push the positioning block to one side of the workpiece, while Y-axis positioning requires a separate independent drive device to complete a similar operation.

[0003] While this design approach of separating drive components can meet basic positioning requirements to some extent, its complex structure and large space occupation make it unsuitable for compact equipment layouts. At the same time, the multi-drive system increases the complexity of the control logic, requires coordination of the timing of actions of multiple execution units, is prone to introducing cumulative errors, and has high manufacturing and maintenance costs. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a positioning fixture that can achieve step-by-step positioning of a product in the X and Y directions by continuously pressing the pressure block assembly. It is simple to operate and has low cost.

[0005] This invention provides a positioning fixture, the positioning fixture comprising: substrate; The first positioning component and the second positioning component are disposed opposite to each other on the substrate along a first direction; Two third positioning components are disposed opposite to each other on the substrate along the second direction; The pressing assembly is disposed on the substrate along a third direction and located outside the second positioning assembly along a first direction; A pusher assembly is disposed on the substrate, with both sides of the pusher assembly disposed on the outer sides of the two third positioning assemblies along the second direction and respectively abutting against the two third positioning assemblies; The first limiter moves along a third direction to connect the second positioning component and the pressure block component; The second limiter moves along a third direction to connect the push block assembly and the pressure block assembly; When the pressing block assembly moves downward along the third direction to the first position, the pressing block assembly pushes the first limiter downward to separate from the pressing block assembly, and the second positioning component moves towards the first positioning component along the first direction; when the pressing block assembly continues to move downward along the third direction to the second position, the pressing block assembly pushes the second limiter downward to separate from the pressing block assembly, and the pushing block assembly moves towards the first positioning component along the first direction and simultaneously pushes the two third positioning components to move towards each other along the second direction.

[0006] Optionally, the positioning fixture further includes: A limiting plate is located below the pressing block assembly. One end of the limiting plate is fixedly connected to the pushing block assembly, and the other end of the limiting plate extends above the first limiter. The limiting plate includes a limiting through hole. Wherein, one end of the first limiter is connected to the second positioning component, and the other end of the first limiter extends into the limiting through hole; when the pressure block component moves to the first position, the pressure block component pushes the first limiter downward to move away from the limiting through hole, and the second positioning component drives the first limiter to move towards the first positioning component along the first direction.

[0007] Optionally, the positioning fixture further includes a first elastic element connected to the first limiter; When the pressing block assembly moves downward to the second position, the pushing block assembly drives the limiting plate to move towards the first positioning assembly until it is positioned opposite to the first limiter in the limiting through hole. The first elastic element pushes the first limiter to reset and extend into the limiting through hole.

[0008] Optionally, the positioning fixture further includes a second elastic element connected to the second limiter; When the push block assembly is reset, the push block assembly synchronously drives the second limiter, the limit plate, the first limiter and the second positioning assembly to move toward the side away from the first positioning assembly, and when the reset is in place, the second elastic element pushes the second limiter to reset and limit the connection with the pressure block assembly.

[0009] Optionally, the positioning fixture further includes: A third elastic element connects the second positioning component and the substrate. When the first limiter separates from the pressure block component, the third elastic element pushes the second positioning component to move toward the first positioning component. A fourth elastic element connects the pusher assembly and the substrate. When the second limiter separates from the pressure block assembly, the fourth elastic element pushes the pusher assembly toward the first positioning assembly.

[0010] Optionally, the positioning fixture further includes: Two fifth elastic elements are respectively connected to the side of the two third positioning components away from the push block assembly. When the push block assembly is reset, the two fifth elastic elements respectively push the two third positioning components to reset.

[0011] Optionally, the positioning fixture further includes: At least one sixth elastic element is connected between the pressing assembly and the substrate, and the sixth elastic element pushes the pressing assembly to reset.

[0012] Optionally, the substrate includes a first through hole and a second through hole, wherein the first through hole communicates with the limiting through hole; The briquetting assembly includes: The pressing block body is located above the surface of the substrate; The first push rod has one end connected to the pressure block body and the other end movable and extended into the first through hole; The second push rod has one end connected to the pressure block body and the other end moving into the second through hole.

[0013] Optionally, the second positioning component includes a first receiving cavity and a first through slot communicating with the first receiving cavity; The pusher assembly includes a second receiving cavity and a second through slot communicating with the second receiving cavity; The first limiter includes a first connecting post and a first limiting post. The first limiting post is accommodated in the first accommodating cavity, and the first connecting post extends out of the first through slot and into the limiting through hole. The second limiter includes a second connecting post and a second limiting post, the second limiting post being accommodated in the second accommodating cavity, and the second connecting post extending out of the second through slot and into the second through hole; The first elastic element is disposed in the first receiving cavity and connected to the first limiting post, and the second elastic element is disposed in the second receiving cavity and connected to the second limiting post.

[0014] Optionally, the pusher assembly includes a second receiving cavity and a second through slot communicating with the second receiving cavity; The second limiter includes a second connecting post and a second limiting post, the second limiting post being accommodated in the second accommodating cavity, and the second connecting post extending out of the second through slot and into the second through hole; The second elastic element is disposed within the second accommodating cavity and connected to the second limiting post.

[0015] Optionally, the substrate includes a first moving groove and a first sliding groove, wherein the first sliding groove is in communication with the first moving groove; The second positioning component includes: The second movable block is movably disposed within the first movable slot; The second positioning block has one end connected to the second moving block, and the other end extends from the first groove to above the surface of the substrate.

[0016] Optionally, the substrate includes two second moving grooves and two second sliding grooves, with the two second sliding grooves respectively communicating with the two second moving grooves; The third positioning component includes: The third movable block is movably disposed within the second movable slot; The third positioning block has one end connected to the third moving block, and the other end extends from the second groove to above the surface of the substrate. A guide wheel is rotatably connected to one end of the third moving block facing the pusher assembly.

[0017] Optionally, the substrate includes a U-shaped moving groove, and the two sides of the U-shaped moving groove are respectively connected to two second moving grooves; The pusher assembly includes a connecting plate and two positioning plates. One end of each of the two positioning plates is connected to both ends of the connecting plate, and the other ends of the two positioning plates extend toward the first positioning assembly and are located on the outside of the two third positioning assemblies, respectively. The connecting plate and the two positioning plates are located in the U-shaped moving groove. The positioning plate has a wedge-shaped surface on the side facing the third positioning component, and the wedge-shaped surface abuts against the guide wheel.

[0018] Optionally, the substrate further includes a third slide groove communicating with the U-shaped moving groove, and the push block assembly further includes a push block, one end of which is connected to the connecting plate, and the other end of which extends through the third slide groove to the surface above the substrate.

[0019] Optionally, the positioning fixture further includes a shielding cover connected to the substrate, with a receiving groove formed between the shielding cover and the substrate, the pressing block body located in the receiving groove and both ends of the pressing block body extending out from the receiving groove.

[0020] Optionally, the first positioning component includes: A positioning boss is fixed on the substrate. The positioning boss is disposed opposite to the second positioning component. The top surface of the positioning boss is provided with a positioning groove. At least one first positioning block is disposed on one side of the positioning boss along the second direction.

[0021] The positioning fixture of this invention includes a base plate, a first positioning component, a second positioning component, two third positioning components, a pressure block component, a push block component, a first limiter, and a second limiter. When the pressure block component moves downward to a first position, it pushes the first limiter downward to separate from the pressure block component. At this time, the second positioning component moves towards the first positioning component along a first direction. When the pressure block component continues to move downward to a second position, it pushes the second limiter downward to separate from the pressure block component. The push block component moves towards the first positioning component along the first direction and simultaneously pushes the two third positioning components to move towards each other along a second direction. This positioning fixture can achieve step-by-step positioning of the product in the X and Y directions by continuously pressing the pressure block component. It is simple to operate and low in cost. Attached Figure Description

[0022] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the invention with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the positioning fixture according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the connection between the push block assembly, the two third positioning assemblies, and the second limiter in an embodiment of the present invention; Figure 3 This is a schematic diagram of the pusher assembly according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the third positioning component according to an embodiment of the present invention; Figure 5 This is a partial cross-sectional view of the second limiter installed in the push block assembly according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the second positioning component according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the first limiter installed in the second positioning component according to an embodiment of the present invention; Figure 8 yes Figure 7 A sectional view; Figure 9 This is a schematic diagram of the structure of the pressing block assembly according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the substrate at a first angle according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the substrate at a second angle according to an embodiment of the present invention; Figure 12 This is a schematic diagram of the substrate structure without the bottom plate according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the positioning fixture of this invention without the base plate; Figure 14 This is a cross-sectional view of the positioning fixture according to an embodiment of the present invention; Figure 15 This is a cross-sectional view of the positioning fixture when the pressing block assembly of this embodiment of the invention moves to the first position; Figure 16 This is a cross-sectional view of the positioning fixture when the pressing block assembly of this embodiment of the invention moves to the second position; Figure 17 This is a cross-sectional view of the positioning fixture when the pressure block assembly moves to the second position and the pressure block assembly is released according to an embodiment of the present invention; Figure 18 This is a schematic diagram of the structure of the shielding cover according to an embodiment of the present invention; Figure 19 This is a schematic diagram of the structure of the pressure block assembly disposed inside the cover according to an embodiment of the present invention.

[0023] Figure label: 1-Substrate; 11-First through hole; 12-Second through hole; 13-First moving groove; 131-First groove; 132-Second groove; 14-First sliding groove; 15-Second moving groove; 16-Second sliding groove; 17-U-shaped moving groove; 171-Connecting groove; 172-Third moving groove; 18-Third sliding groove; 19-Guide hole; 2-First positioning assembly; 21-Positioning boss; 211-Positioning groove; 212-Positioning hook; 22-First positioning block; 3-Second positioning assembly; 31-First receiving cavity; 32-First through groove; 33-Second moving block; 331-First moving part; 332-Second moving part; 34-Second positioning block; 4-Third positioning assembly; 41-Third moving block; 42-Third positioning block; 43-Guide wheel; 5-Pressure block assembly; 51-Pressure block body Body; 52-First push rod; 53-Second push rod; 54-Guide post; 6-Push block assembly; 61-Second receiving cavity; 62-Second through groove; 63-Connecting plate; 64-Positioning plate; 641-Wedge surface; 65-Push block; 66-Fixing post; 7-First limiter; 71-First connecting post; 72-First limiting post; 8-Second limiter; 81-Second connecting post; 82-Second limiting post; 9-Limiting plate; 91-Limiting through hole; 100-First elastic element; 200-Second elastic element; 300-Third elastic element; 400-Fourth elastic element; 500-Fifth elastic element; 600-Sixth elastic element; 700-Blocking cover; 701-Receiving groove; X-First direction; Y-Second direction; Z-Third direction; a-First position; b-Second position. Detailed Implementation

[0024] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0025] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0026] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0028] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more. In the description of this application, the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0029] Figure 1 and Figure 14 This is a schematic diagram of the positioning fixture in this embodiment. Figure 1 and Figure 14 As shown, the positioning fixture includes a base plate 1, a first positioning component 2, a second positioning component 3, two third positioning components 4, a pressure block component 5, a push block component 6, a first limiter 7, and a second limiter 8.

[0030] like Figure 1As shown, the first positioning component 2 and the second positioning component 3 are disposed opposite each other on the substrate 1 along the first direction X, and the two third positioning components 4 are disposed opposite each other on the substrate 1 along the second direction Y. The first positioning component 2, the second positioning component 3, and the two third positioning components 4 surround and form a positioning cavity for placing the product. Optionally, the positioning cavity is rectangular. Correspondingly, the product has a rectangular shape.

[0031] The first positioning component 2 is fixed on the base plate 1, and the second positioning component 3 can move relative to the first positioning component 2. By controlling the movement of the second positioning component 3, the distance between it and the first positioning component 2 (that is, the size of the positioning cavity in the first direction X) is changed, thereby achieving the positioning of the product in the X direction.

[0032] Among them, the two third positioning components 4 can move relative to each other along the second direction Y. By controlling the two third positioning components 4 to move towards each other along the second direction Y, the distance between them (that is, the size of the positioning cavity in the second direction Y) is changed, thereby achieving the positioning of the product in the Y direction.

[0033] like Figure 14 As shown, the pressing block assembly 5 is disposed on the substrate 1 along the third direction Z, and specifically, the pressing block assembly 5 can move along the third direction Z. In this embodiment, the pressing block assembly 5 is located outside the second positioning assembly 3 (i.e., away from the first positioning assembly 2) along the first direction X, so as to avoid the positioning cavity.

[0034] like Figures 14-16 As shown, the first limiter 7 connects the second positioning component 3 and the pressure block component 5 along the third direction Z. The first limiter 7 is movable along the third direction Z. Specifically, when the pressure block component 5 moves downwards along the third direction Z to the first position a, the pressure block component 5 pushes the first limiter 7 downwards until it separates from the pressure block component 5. At this point, the second positioning component 3 is no longer constrained and thus moves towards the first positioning component 2 along the first direction X, achieving X-axis positioning.

[0035] like Figure 2 and Figure 14 As shown, the push block assembly 6 is disposed inside the substrate 1. Both sides of the push block assembly 6 extend along the second direction Y and are disposed outside the two third positioning assemblies 4, respectively abutting against the two third positioning assemblies 4.

[0036] like Figures 14-16As shown, the second limiter 8 connects the pusher assembly 6 and the pressure assembly 5 along the third direction Z. The second limiter 8 can move along the third direction Z. Specifically, after the pressure assembly 5 moves to the first position a, when it continues to move downwards along the third direction Z to the second position b, the pressure assembly 5 pushes the second limiter 8 downwards until it separates from the pressure assembly 5. At this point, the pusher assembly 6 is no longer constrained and moves towards the first positioning assembly 2 along the first direction X, simultaneously pushing the two third positioning assemblies 4 to move towards each other along the second direction Y, achieving Y-axis positioning.

[0037] like Figures 14-16 As shown, the positioning fixture also includes a limiting plate 9. The limiting plate 9 is located below the pressure block assembly 5, with one end fixedly connected to the push block assembly 6, and the other end extending above the first limiter 7. Figure 14 As shown, the limiting plate 9 includes a limiting through hole 91. One end of the first limiting device 7 is connected to the second positioning component 3, and the other end of the first limiting device 7 extends into the limiting through hole 91, thereby realizing the limiting connection between the second positioning component 3 and the limiting plate 9 and the push block component 6.

[0038] When the pressing block assembly 5 moves downward to the first position a, the pressing block assembly 5 pushes the first limiter 7 to move downward to disengage from the limiting through hole 91. At this time, the first limiter 7 no longer constrains the second positioning assembly 3 and the limiting plate 9. At this time, the second positioning assembly 3 drives the first limiter 7 to move along the first direction X toward the first positioning assembly 2 to achieve X-direction positioning.

[0039] In this embodiment, the top of the pusher assembly 6 is provided with a fixing post 66, which is located on the side of the pusher assembly 6 near the second positioning assembly 3, such as... Figure 3 As shown. The end of the limiting plate 9 away from the limiting through hole 91 is fixedly connected to the fixing post 66, and the end of the limiting plate 9 with the limiting through hole 91 extends to the top of the second positioning component 3.

[0040] In other embodiments, the limiting plate 9 and the push block assembly 6 can be integrally formed, that is, the limiting plate 9 is part of the push block assembly 6. The first limiter 7 extends into the limiting through hole 91 to achieve a limiting connection between the second positioning assembly 3 and the push block assembly 6. When the first limiter 7 is completely removed from the limiting through hole 91, the limiting connection between the second positioning assembly 3 and the push block assembly 6 (i.e., the limiting plate 9) is released.

[0041] like Figure 10 As shown, the substrate 1 includes a first through hole 11 and a second through hole 12, with the second through hole 12 located along the first direction X on the side of the first through hole 11 away from the first positioning component 2. Figure 14 As shown, the first through hole 11 and the limiting through hole 91 are connected along the third direction Z, and the second through hole 12 is disposed opposite to the second limiter 8.

[0042] like Figure 9 As shown, the pressing block assembly 5 includes a pressing block body 51, a first push rod 52, and a second push rod 53. The first push rod 52 and the second push rod 53 are fixed to the bottom surface of the pressing block body 51. The pressing block body 51 is mounted above the surface of the substrate 1. The first push rod 52 moves into the first through hole 11, and the second push rod 53 moves into the second through hole 12. The top of the second limiter 8 extends into the second through hole 12 and is located below the second push rod 53. Figure 14 As shown.

[0043] During the positioning operation, the operator presses the pressure block body 51, causing the pressure block body 51 to move the first push rod 52 and the second push rod 53 downwards simultaneously. As the pressure block body 51 moves the first push rod 52 downwards to the first position a, the first push rod 52 gradually extends from the first through hole 11 into the limiting through hole 91 to push the first limiter 7 downwards, gradually extending it from below the limiting through hole 91 until the first limiter 7 is completely extended from below the limiting through hole 91 (i.e., moved to the first position a). At this point, the second positioning component 3 is no longer constrained, and the second positioning component 3 drives the first limiter 7 to move towards the first positioning component 2, thereby achieving X-axis clamping and positioning of the product. Figure 15 As shown.

[0044] During the process of the pressing block body 51 driving the first push rod 52 downward to the first position a, the second push rod 53 simultaneously drives the second limiter 8 downward. At this time, although the second limiter 8 has moved downward a certain distance, it is still located within the second through hole 12, so that the push block assembly 6 is still in a limiting connection with the substrate 1. Figure 15 As shown.

[0045] Among them, such as Figure 15 As shown, after the second positioning component 3 clamps and positions the product in the X direction, at least part of the top of the first limiter 7 abuts against the bottom of the limit plate 9 to facilitate the subsequent reset of the first limiter 7. For details, please refer to the relevant description below.

[0046] After completing the X-axis positioning, the operator continues to press down on the pressure block body 51. The pressure block body 51 drives the first push rod 52 and the second push rod 53 to continue moving downwards. When the pressure block body 51 drives the second push rod 53 to move downwards to the second position b, the second push rod 53 pushes the second limiter 8 to extend completely from below the second through hole 12 (i.e., moves to the second position b). At this time, the push block assembly 6 is no longer constrained. The push block assembly 6 drives the second limiter 8 and the limit plate 9 to move towards the first positioning assembly 2. The two sides of the push block assembly 6 push the two third positioning assemblies 4 to move simultaneously in opposite directions along the second Y-axis, thereby achieving Y-axis clamping and fixing of the product. Figure 16As shown. At this time, the second limiter 8 abuts against the bottom surface of the substrate 1.

[0047] Among them, after the second positioning component 3 moves in the X direction, there is a certain distance between the top surface of the second positioning component 3 and the first push rod 52, such as... Figure 15 As shown. During the process of the pressure block body 51 driving the second push rod 53 downward to the second position b, the first push rod 52 moves downward and extends out from the limiting through hole 91. At this time, the first push rod 52 will not interfere with the second positioning component 3, as shown. Figure 16 As shown.

[0048] Among them, the limiting through hole 91 is an elongated through hole. During the process of the push block assembly 6 driving the second limiter 8 and the limiting plate 9 towards the first positioning assembly 2, the limiting through hole 91 moves relative to the first limiter 7 towards the first positioning assembly 2. The elongated shape of the limiting through hole 91 ensures that it does not interfere with the first push rod 52 during movement. Simultaneously, the limiting through hole 91 gradually moves to be positioned opposite the first limiter 7. At this point, the first limiter 7 is no longer constrained by the bottom surface of the limiting plate 9, and the first limiter 7 resets and re-extends into the limiting through hole 91. Figure 16 As shown.

[0049] Furthermore, at least one sixth elastic element 600 is provided between the pressing assembly 5 and the substrate 1, such as... Figures 14-17 As shown. Specifically, the sixth elastic element 600 is connected between the pressure block body 51 and the substrate 1. After the product is clamped and positioned in the X and Y directions, the operator releases the pressure block body 51. At this time, the sixth elastic element 600 applies an upward reset force to the pressure block body 51, thereby pushing the entire pressure block assembly 5 upward to reset, as shown. Figure 17 As shown.

[0050] In this embodiment, the pressing block assembly 5 further includes a guide post 54, which is fixed to the bottom surface of the pressing block body 51, such as... Figure 9 As shown. The substrate 1 has corresponding guide holes 19, as... Figure 10 As shown. The guide post 54 extends into the guide hole 19. When the pressing block body 51 moves the first push rod 52 and the second push rod 53, it simultaneously moves the guide post 54 within the guide hole 19. The guide post 54 improves the stability of the pressing block body 51 during pressing and moving, thereby improving the stability of its X and Y direction positioning. Optionally, multiple sixth elastic elements 600 can be evenly distributed at different positions on the pressing block body 51, which can improve the stability of the pressing block assembly 5's reset.

[0051] Furthermore, the positioning fixture also includes a cover 700, such as Figure 1As shown. The shielding cover 700 is connected to the substrate 1, and a receiving groove 701 is formed between the shielding cover 700 and the substrate 1. The pressing block body 51 is located within the receiving groove 701, as shown. Figure 18 and Figure 19 As shown, the cover 700 is placed over the outside of the pressing block body 51 to improve aesthetics. Both ends of the pressing block body 51 extend from the receiving groove 701 to facilitate pressing by the operator. Optionally, the pressing block body 51 is cross-shaped, and the receiving groove 701 is a cross-shaped slot, which can guide the movement of the pressing block body 51.

[0052] like Figure 14 As shown, the positioning fixture also includes a first elastic element 100. The first elastic element 100 is connected to the first limiter 7, specifically connected below the first limiter 7. The first elastic element 100 provides an elastic restoring force to the first limiter 7, so that when the limiting through hole 91 of the limiting plate 9 is vertically opposite to the first limiter 7, the first limiter 7 can be pushed upward and reset under the action of the first elastic element 100, re-extending into the limiting through hole 91. That is, when the pressure block assembly 5 moves downward to the second position b, at this time the limiting through hole 91 is vertically opposite to the first limiter 7, the first elastic element 100 pushes the first limiter 7 to reset and extend into the limiting through hole 91, realizing the limiting connection between the second positioning assembly 3 and the limiting plate 9, as shown. Figure 16 As shown.

[0053] like Figure 8 As shown, the second positioning component 3 includes a first receiving cavity 31 and a first through groove 32 communicating with the first receiving cavity 31. The first through groove 32 is located above the first receiving cavity 31, and the lateral dimension of the first through groove 32 is smaller than the lateral dimension of the first receiving cavity 31. Figure 8 As shown, the first limiter 7 includes a first connecting post 71 and a first limiting post 72. The first connecting post 71 is connected above the first limiting post 72, and the lateral dimension of the first connecting post 71 is smaller than the lateral dimension of the first limiting post 72.

[0054] The first limiting post 72 is accommodated within the first receiving cavity 31, and the first connecting post 71 extends from the first through groove 32, such as... Figure 8 As shown. Specifically, the first connecting post 71 can extend from the first through groove 32 and then extend into the limiting through hole 91, as shown. Figure 14 As shown. The first elastic element 100 is disposed in the first receiving cavity 31 and connected between the first limiting post 72 and the bottom surface of the first receiving cavity 31.

[0055] In this embodiment, to facilitate the installation of the first elastic element 100 and the first limiter 7, the first receiving cavity 31 has a downward opening. After the first limiter 7 and the first elastic element 100 are installed in the first receiving cavity 31, a baffle can be detachably installed below the first receiving cavity 31.

[0056] like Figure 6 and Figure 7 As shown, the second positioning component 3 includes a second moving block 33 and a second positioning block 34, with the second positioning block 34 connected above the second moving block 33. The second moving block 33 is movably disposed inside the substrate 1, and the second positioning block 34 is located on the surface of the substrate 1.

[0057] like Figure 10 , Figure 11 and Figure 12 As shown, the substrate 1 includes a first moving groove 13 and a first sliding groove 14. The first moving groove 13 is disposed within the substrate 1, and the first sliding groove 14 communicates with one end of the first moving groove 13 along a third direction Z.

[0058] The second moving block 33 is movably disposed within the first moving groove 13, and the second positioning block 34 extends from the first sliding groove 14 to above the surface of the substrate 1. When the second moving block 33 moves within the first moving groove 13, it drives the second positioning block 34 to move above the surface of the substrate 1, thereby achieving X-axis clamping and positioning.

[0059] In this embodiment, the first moving groove 13 and the first sliding groove 14 are located on the side of the first through hole 11 close to the first positioning component 2, so that after the pressing block component 5 and the second positioning component 3 are installed on the substrate 1, the pressing block component 5 is located on the side of the second positioning component 3 away from the first positioning component 2.

[0060] Optionally, the first movable groove 13 includes a first groove 131 and a second groove 132, the first groove 131 extending along a first direction X, the second groove 132 extending along a second direction Y, and the second groove 132 being perpendicularly connected to one end of the first groove 131, such as... Figure 12 As shown. The two ends of the second groove 132 extend to both sides of the first groove 131. The first sliding groove 14 and the second groove 132 are connected along the third direction Z (i.e., the vertical direction). Correspondingly, the second moving block 33 includes a first moving part 331 and a second moving part 332, the second moving part 332 and the first moving part 331 are perpendicularly connected to form a cross-shaped structure, as shown. Figure 6 As shown. The first moving part 331 is located within the first groove 131, and the second moving part 332 is located within the second groove 132. The first receiving cavity 31 and the first through groove 32 are disposed at one end of the first moving part 331 near the first through hole 11, as shown. Figure 8 As shown.

[0061] like Figure 7 and Figure 13 As shown, the positioning fixture also includes a third elastic element 300, which connects the second positioning assembly 3 and the base plate 1. When the first limiter 7 separates from the limiting through hole 91, the third elastic element 300 pushes the second positioning assembly 3 toward the first positioning assembly 2 with elastic force. Specifically, the third elastic element 300 is located in the second groove 132 and is connected between the second moving part 332 and the sidewall of the second groove 132. Preferably, there can be two third elastic elements 300, located on both sides of the first moving part 331 respectively.

[0062] like Figure 14 As shown, the positioning fixture also includes a second elastic element 200, which is connected to the second limiter 8. Specifically, the second elastic element 200 is connected below the second limiter 8. The second elastic element 200 provides an elastic reset force to the second limiter 8, so that when the second limiter 8 and the second through hole 12 are vertically opposite each other, the second limiter 8 can be pushed upward and reset under the action of the second elastic element 200 to re-extend into the second through hole 12. That is, after the pusher assembly 6 is reset, the second through hole 12 and the second limiter 8 are vertically opposite each other, and the second elastic element 200 pushes the second limiter 8 to reset and extend into the second through hole 12, realizing the limiting connection between the pusher assembly 6 and the substrate 1, as shown. Figure 17 As shown.

[0063] like Figure 5 As shown, the pusher assembly 6 includes a second receiving cavity 61 and a second through groove 62 communicating with the second receiving cavity 61. The second through groove 62 is located above the second receiving cavity 61, and the lateral dimension of the second through groove 62 is smaller than the lateral dimension of the second receiving cavity 61. Figure 5 As shown, the second limiter 8 includes a second connecting post 81 and a second limiting post 82. The second connecting post 81 is connected above the second limiting post 82, and the lateral dimension of the second connecting post 81 is smaller than the lateral dimension of the second limiting post 82.

[0064] The second limiting post 82 is accommodated within the second receiving cavity 61, and the second connecting post 81 extends from the second through groove 62, such as... Figure 5 As shown. Specifically, the second connecting post 81 can extend from the second through slot 62 and then into the second through hole 12, as shown. Figure 14 As shown. The second elastic element 200 is disposed in the second receiving cavity 61 and connected between the second limiting post 82 and the bottom surface of the second receiving cavity 61.

[0065] In this embodiment, to facilitate the installation of the second elastic element 200 and the second limiter 8, the second receiving cavity 61 has a downward opening. After the second limiter 8 and the second elastic element 200 are installed in the second receiving cavity 61, a baffle can be detachably installed below the second receiving cavity 61.

[0066] like Figure 3 As shown, the pusher assembly 6 includes a connecting plate 63 and two positioning plates 64. One end of the two positioning plates 64 is connected to both ends of the connecting plate 63, and the other end of the two positioning plates 64 extends toward the first positioning assembly 2 and is located on the outside of the two third positioning assemblies 4.

[0067] The fixed post 66 is disposed on the connecting plate 63, and the limiting plate 9 is connected to the connecting plate 63 and extends above the second moving block 33. The second moving block 33 and the connecting plate 63 (i.e., the push block assembly 6) are connected through the limiting through hole 91 of the limiting plate 9 by the first limiting device 7. The above connection allows the push block assembly 6 to drive the second positioning assembly 3 to move and reset, and also allows the second positioning assembly 3 to remain in the open state after reset.

[0068] like Figure 12 As shown, the substrate 1 includes a U-shaped moving groove 17. The U-shaped moving groove 17 includes a connecting groove 171 and two third moving grooves 172, which are connected to both ends of the connecting groove 171. The U-shaped moving groove 17 surrounds the outside of the first moving groove 13. The two third moving grooves 172 are arranged parallel to each other on both sides of the first moving groove 13, and the connecting groove 171 is located vertically on the side of the first moving groove 13 away from the first positioning component 2. Specifically, the first moving groove 13 communicates with the connecting groove 171, and the first through hole 11 and the second through hole 12 communicate with the connecting groove 171.

[0069] The connecting plate 63 is movably disposed within the connecting groove 171, and the two positioning plates 64 are respectively movably disposed within the two third moving grooves 172. When the connecting plate 63 moves within the connecting groove 171, it drives the two positioning plates 64 to move within the two third moving grooves 172, and simultaneously drives the limiting plate 9 to move within the connecting groove 171 and the first moving groove 13. The second receiving cavity 61 and the second through groove 62 are disposed on the connecting plate 63, as shown below. Figure 5 As shown.

[0070] like Figure 2 and Figure 13As shown, the positioning fixture also includes a fourth elastic element 400, which connects the pusher assembly 6 and the base plate 1. When the second limiter 8 separates from the second through hole 12, the fourth elastic element 400 pushes the pusher assembly 6 toward the first positioning assembly 2 with elastic force. Specifically, the fourth elastic element 400 is located in the connecting groove 171 and is connected between the connecting plate 63 and the side wall of the connecting groove 171. Preferably, there can be multiple fourth elastic elements 400, evenly distributed on the side of the connecting plate 63, which can uniformly push the pusher assembly 6 to move.

[0071] like Figure 10 and Figure 12 As shown, the substrate 1 also includes a third sliding groove 18, which communicates with the U-shaped moving groove 17 along the third direction Z. Specifically, the third sliding groove 18 communicates with the connecting groove 171. Figure 2 and Figure 3 As shown, the pusher assembly 6 also includes a pusher 65, which is connected above the connecting plate 63. When the connecting plate 63 and the two positioning plates 64 are installed in the U-shaped moving groove 17, the pusher 65 can pass through the third sliding groove 18 and extend above the surface of the substrate 1. The pusher 65 is used to facilitate operator operation during reset.

[0072] like Figure 10 and Figure 12 As shown, the substrate 1 includes two second moving grooves 15 and two second sliding grooves 16, both of which are parallel to the second direction Y. The two second sliding grooves 16 are respectively connected to the two second moving grooves 15 along the third direction Z.

[0073] Furthermore, the two sides of the U-shaped moving groove 17 are respectively connected to the two second moving grooves 15. Specifically, the two third moving grooves 172 are perpendicularly connected to the two second moving grooves 15, as shown below. Figure 12 As shown.

[0074] like Figure 2 and Figure 4 As shown, the third positioning component 4 includes a third moving block 41, a third positioning block 42, and a guide wheel 43. The third moving block 41 is movably disposed within the second moving groove 15. One end of the third positioning block 42 is connected to the third moving block 41, and the other end of the third positioning block 42 extends from the second sliding groove 16 above the surface of the substrate 1. The guide wheel 43 is rotatably connected to the end of the third moving block 41 facing the push block assembly 6 (i.e., the positioning plate 64). Figure 1 and Figure 13As shown. Further, the guide wheels 43 of the two third positioning components 4 abut against the sides of the two positioning plates 64 respectively. When the push block assembly 6 moves toward the first positioning component 2, the two positioning plates 64 push the two third moving blocks 41 through the two guide wheels 43 during the movement, thereby causing the two third positioning blocks 42 to move in opposite directions along the second direction Y, thus achieving Y-axis clamping and fixing of the product.

[0075] The positioning plate 64 has a wedge-shaped surface 641 on the side facing the third positioning component 4. The wedge-shaped surface 641 is an inclined side surface that forms an angle with the second direction Y. The wedge-shaped surface 641 engages with the guide wheel 43. As the wedge-shaped surface 641 gradually moves, it gradually pushes the guide wheel 43 to move. The guide wheel 43 and the wedge-shaped surface 641 are in a rotational engagement, which reduces friction between them.

[0076] like Figure 13 As shown, the positioning fixture also includes two fifth elastic elements 500, which are respectively connected to the two third positioning components 4 and the base plate 1. Specifically, the two fifth elastic elements 500 are respectively connected to the side of the two third positioning components 4 away from the push block assembly 6. The fifth elastic elements 500 push the third positioning components 4 to reset through elastic force. The fifth elastic elements 500 are located in the second moving groove 15 and are connected between the sidewalls of the third moving block 41 and the second moving groove 15.

[0077] After the product completes the corresponding process by being positioned by the positioning fixture, the positioning fixture needs to be opened to remove the product. Specifically, to open the positioning fixture, simply operate the push block 65 to move along the first direction X toward the side away from the first positioning component 2. At this time, the push block component 6 drives the second limiter 8, the limit plate 9, the first limiter 7, and the second positioning component 3 to move synchronously along the first direction X toward the side away from the first positioning component 2. The two third positioning components 4 move in opposite directions along the second direction Y under the action of the two fifth elastic elements 500 until the second limiter 8 is reset and extends into the second through hole 12 under the action of the second elastic element 200, thereby completing the opening of the positioning fixture. When the positioning fixture is opened, the push block component 6 is limited to the base plate 1 by the second limiter 8, and the second positioning component 3 is limited to the push block component 6 by connecting to the limit plate 9 by the first limiter 7, thereby keeping the positioning fixture in the open state.

[0078] like Figure 1As shown, the first positioning component 2 includes a positioning boss 21 and at least one first positioning block 22. The positioning boss 21 is fixed to the substrate 1, and the first positioning block 22 is disposed on one side of the positioning boss 21 along the second direction Y. The positioning boss 21, the first positioning block 22, and the second positioning component 3 (specifically, the second positioning block 34) are disposed opposite to each other. In this embodiment, the inner side of the first positioning block 22 is closer to the second positioning block 34 relative to the positioning boss 21. That is, the first positioning block 22, the second positioning block 34, and the two third positioning blocks 42 together form a positioning cavity that can be adjusted according to different products. In this embodiment, a first positioning block 22 is provided on each side of the positioning boss 21 along the second direction Y.

[0079] The positioning boss 21 has a positioning groove 211 on its top surface. The positioning groove 211 has a top opening and a side opening. A positioning hook 212 is provided inside the positioning groove 211. The shape of the positioning groove 211 is similar to the shape of the hook on the product, and it is used to position the hook on the product. At the same time, the positioning hook 212 can position the hole structure in the hook.

[0080] That is, after the product is clamped and positioned in the X and Y directions by the positioning fixture, the hook is placed in the positioning groove 211 for positioning, and then the hook is pasted on the surface of the product.

[0081] The positioning fixture of this embodiment can be adapted to products of different sizes. Positioning is achieved by simultaneously moving two third positioning components toward the center, ensuring that different products maintain a consistent center position after positioning, thus improving product positioning accuracy. Furthermore, this positioning fixture only requires a pressure block assembly to achieve step-by-step positioning and reset in the X and Y directions, making it simple to operate and low in cost.

[0082] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A positioning fixture, characterized in that, The positioning fixture includes: substrate; The first positioning component and the second positioning component are disposed opposite to each other on the substrate along a first direction; Two third positioning components are disposed opposite to each other on the substrate along the second direction; The pressing assembly is disposed on the substrate along a third direction and located outside the second positioning assembly along a first direction; A pusher assembly is disposed on the substrate, with both sides of the pusher assembly disposed on the outer sides of the two third positioning assemblies along the second direction and respectively abutting against the two third positioning assemblies; The first limiter moves along a third direction to connect the second positioning component and the pressure block component; The second limiter moves along a third direction to connect the push block assembly and the pressure block assembly; When the pressing block assembly moves downward along the third direction to the first position, the pressing block assembly pushes the first limiter downward to separate from the pressing block assembly, and the second positioning component moves towards the first positioning component along the first direction; when the pressing block assembly continues to move downward along the third direction to the second position, the pressing block assembly pushes the second limiter downward to separate from the pressing block assembly, and the pushing block assembly moves towards the first positioning component along the first direction and simultaneously pushes the two third positioning components to move towards each other along the second direction.

2. The positioning fixture according to claim 1, characterized in that, The positioning fixture also includes: A limiting plate is located below the pressing block assembly. One end of the limiting plate is fixedly connected to the pushing block assembly, and the other end of the limiting plate extends above the first limiter. The limiting plate includes a limiting through hole. Wherein, one end of the first limiter is connected to the second positioning component, and the other end of the first limiter extends into the limiting through hole; when the pressure block component moves to the first position, the pressure block component pushes the first limiter downward to move away from the limiting through hole, and the second positioning component drives the first limiter to move towards the first positioning component along the first direction.

3. The positioning fixture according to claim 2, characterized in that, The positioning fixture further includes a first elastic element connected to the first limiter; When the pressing block assembly moves downward to the second position, the pushing block assembly drives the limiting plate to move towards the first positioning assembly until it is positioned opposite to the first limiter in the limiting through hole. The first elastic element pushes the first limiter to reset and extend into the limiting through hole.

4. The positioning fixture according to claim 3, characterized in that, The positioning fixture further includes a second elastic element connected to the second limiter; When the push block assembly is reset, the push block assembly synchronously drives the second limiter, the limit plate, the first limiter and the second positioning assembly to move toward the side away from the first positioning assembly, and when the reset is in place, the second elastic element pushes the second limiter to reset and limit the connection with the pressure block assembly.

5. The positioning fixture according to claim 1, characterized in that, The positioning fixture also includes: A third elastic element connects the second positioning component and the substrate. When the first limiter separates from the pressure block component, the third elastic element pushes the second positioning component to move toward the first positioning component. A fourth elastic element connects the pusher assembly and the substrate. When the second limiter separates from the pressure block assembly, the fourth elastic element pushes the pusher assembly toward the first positioning assembly.

6. The positioning fixture according to claim 1, characterized in that, The positioning fixture also includes: Two fifth elastic elements are respectively connected to the side of the two third positioning components away from the push block assembly. When the push block assembly is reset, the two fifth elastic elements respectively push the two third positioning components to reset.

7. The positioning fixture according to claim 1, characterized in that, The positioning fixture also includes: At least one sixth elastic element is connected between the pressing assembly and the substrate, and the sixth elastic element pushes the pressing assembly to reset.

8. The positioning fixture according to claim 4, characterized in that, The substrate includes a first through hole and a second through hole, wherein the first through hole is connected to the limiting through hole; The briquetting assembly includes: The pressing block body is located above the surface of the substrate; The first push rod has one end connected to the pressure block body and the other end movable and extended into the first through hole; The second push rod has one end connected to the pressure block body and the other end moving into the second through hole.

9. The positioning fixture according to claim 8, characterized in that, The second positioning component includes a first receiving cavity and a first through slot communicating with the first receiving cavity; The first limiter includes a first connecting post and a first limiting post. The first limiting post is accommodated in the first accommodating cavity, and the first connecting post extends out of the first through slot and into the limiting through hole. The first elastic element is disposed within the first accommodating cavity and connected to the first limiting post.

10. The positioning fixture according to claim 8, characterized in that, The pusher assembly includes a second receiving cavity and a second through slot communicating with the second receiving cavity; The second limiter includes a second connecting post and a second limiting post, the second limiting post being accommodated in the second accommodating cavity, and the second connecting post extending out of the second through slot and into the second through hole; The second elastic element is disposed within the second accommodating cavity and connected to the second limiting post.

11. The positioning fixture according to claim 1, characterized in that, The substrate includes a first movable groove and a first sliding groove, wherein the first sliding groove is connected to the first movable groove; The second positioning component includes: The second movable block is movably disposed within the first movable slot; The second positioning block has one end connected to the second moving block, and the other end extends from the first groove to above the surface of the substrate.

12. The positioning fixture according to claim 1, characterized in that, The substrate includes two second movable grooves and two second sliding grooves, with the two second sliding grooves respectively communicating with the two second movable grooves; The third positioning component includes: The third movable block is movably disposed within the second movable slot; The third positioning block has one end connected to the third moving block, and the other end extends from the second groove to above the surface of the substrate. A guide wheel is rotatably connected to one end of the third moving block facing the pusher assembly.

13. The positioning fixture according to claim 12, characterized in that, The substrate includes a U-shaped moving groove, and the two sides of the U-shaped moving groove are respectively connected to two second moving grooves; The pusher assembly includes a connecting plate and two positioning plates. One end of each of the two positioning plates is connected to both ends of the connecting plate, and the other ends of the two positioning plates extend toward the first positioning assembly and are located on the outside of the two third positioning assemblies, respectively. The connecting plate and the two positioning plates are located in the U-shaped moving groove. The positioning plate has a wedge-shaped surface on the side facing the third positioning component, and the wedge-shaped surface abuts against the guide wheel.

14. The positioning fixture according to claim 13, characterized in that, The substrate further includes a third slide groove communicating with the U-shaped moving groove, and the push block assembly further includes a push block, one end of which is connected to the connecting plate, and the other end of which extends through the third slide groove to the surface above the substrate.

15. The positioning fixture according to claim 8, characterized in that, The positioning fixture also includes a cover connected to the substrate, and a receiving groove is formed between the cover and the substrate. The pressing block body is located in the receiving groove and both ends of the pressing block body extend out from the receiving groove.

16. The positioning fixture according to claim 1, characterized in that, The first positioning component includes: A positioning boss is fixed on the substrate. The positioning boss is disposed opposite to the second positioning component. The top surface of the positioning boss is provided with a positioning groove, and a positioning hook is provided in the positioning groove. At least one first positioning block is disposed on one side of the positioning boss along the second direction.

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