A clamping fixture
By designing a clamping fixture with elastic and sliding components, the problems of cumbersome operation and workpiece damage of existing fixtures are solved, and simple clamping and release are achieved, which is suitable for automated equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG XINGKE OPTOELECTRONICS TECHNOLOGY CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fixtures clamp power devices by tightening screws, which is cumbersome and can easily damage the workpiece.
The clamping fixture, designed with elastic and sliding components, achieves state switching by sliding the sliding component along a straight direction, and provides flexible clamping force using the elastic component.
It simplifies the operation process of the fixture, reduces damage to the workpiece, and is suitable for clamping and releasing in automated equipment.
Smart Images
Figure CN224509449U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power device processing fixtures, and more particularly to a clamping fixture. Background Technology
[0002] Power devices and other products (hereinafter referred to as workpieces) require the use of adhesive during the production process. After applying the adhesive, the workpieces to be bonded need to be pressed tightly and wait for the adhesive to cure in order to achieve a reliable bond.
[0003] For clamping workpieces, fixtures are generally used to clamp them. However, most of the fixtures currently used achieve clamping by turning screws. Firstly, turning screws is cumbersome, and secondly, the clamping force generated is a rigid force, which can easily damage the workpiece. Utility Model Content
[0004] In order to solve at least one of the technical problems mentioned in the background art, the purpose of this application is to provide a clamping fixture.
[0005] To achieve the above objectives, this application provides the following technical solution.
[0006] A clamping fixture, comprising:
[0007] A substrate, wherein the top surface of the substrate is provided with at least one positioning groove for embedding a workpiece;
[0008] A pressure plate is vertically opposite to a substrate and located on one side of a positioning groove. The bottom surface of the pressure plate is provided with a clamping assembly corresponding to each positioning groove. The clamping assembly includes at least one elastic member with elasticity. The pressure plate can move vertically relative to the substrate to generate a first state and a second state. In the first state, the pressure plate pushes the elastic member to press against the workpiece in the positioning groove. In the second state, the pressure plate can be removed from the substrate.
[0009] The actuator includes a sliding member that can slide relative to the pressure plate along a first direction perpendicular to the vertical. The sliding member drives the actuator to switch the pressure plate between a first state and a second state.
[0010] As an optional embodiment of this application, the actuator further includes a guide post, which is fixed to the top surface of the substrate and extends vertically; the pressure plate is movably inserted through the guide post vertically; and a locking head is formed at the top of the guide post.
[0011] A sliding member is disposed on the top surface of the pressure plate. The sliding member has a through groove extending in a first direction corresponding to the position of the guide post. The through groove includes an insertion end and a locking end. The guide post can move between the locking end and the insertion end along the through groove. The insertion end is configured to allow the locking head to pass through vertically, and the locking end is configured to restrict the locking head from passing through vertically. The sliding member slides relative to the pressure plate in the first direction to generate an unlocked position and a locked position. In the locked position, the guide post is at the locking end and the locking head abuts against the top surface of the sliding member to put the pressure plate into a first state. In the unlocked position, the guide post is at the insertion end to put the pressure plate into a second state.
[0012] As an optional embodiment of this application, the through groove further includes a connecting section, the locking end and the insertion end are connected by the connecting section, the top walls on both sides of the connecting section are inclined guide surfaces, and the inclination direction of the guide surfaces is to gradually slope downward from the locking end to the insertion end along a first direction.
[0013] As an optional embodiment of this application, at least one set of guide components is further provided between the sliding member and the pressure plate, the guide components being used to guide the sliding member and the pressure plate to move relative to each other along a first direction.
[0014] As an optional embodiment of this application, the guide assembly includes a guide groove formed on the sliding member and extending along a first direction, and at least two positioning pins fixed on the sliding member and passing through the guide groove. The top of the positioning pin forms a boss, which restricts the vertical movement of the sliding member relative to the sliding member.
[0015] Alternatively, the guide assembly may include at least two sets, with the two sets of guide assemblies arranged side by side along a second direction, the second direction being perpendicular to the first direction; each guide assembly includes a guide groove formed on the sliding member and extending along the first direction, and at least one positioning pin fixed on the sliding member and passing through the guide groove, the top of the positioning pin forming a boss, the boss restricting the sliding member from moving vertically relative to the sliding member.
[0016] As an optional embodiment of this application, the guide post has a stepped surface located below the locking head. When the guide post is in the locking end, the sliding member and the pressure plate are vertically positioned between the stepped surface and the locking head.
[0017] As an optional embodiment of this application, the guide post is threaded onto the substrate.
[0018] As an optional embodiment of this application, each set of clamping components includes four elastic members, each corresponding to one of the four corners of the workpiece.
[0019] As an optional embodiment of this application, the elastic member is an elastic plunger capable of elastically expanding and contracting vertically.
[0020] As an optional embodiment of this application, the pressure plate and / or the substrate has an opening corresponding to the positioning groove.
[0021] Compared with the prior art, this application has the following advantages:
[0022] The clamping and releasing states of the entire fixture are switched by sliding the sliding component relative to the pressure plate along the first direction. Compared with the traditional method of controlling the clamping and releasing by turning screws, it is undoubtedly easier to operate.
[0023] Furthermore, because the provided clamp relies on the linear sliding of the sliding member to achieve clamping and release, it can be applied to automated equipment. For example, a cylinder can be set between the pressure plate and the sliding member, and the sliding member can be driven to slide relative to the pressure plate in a first direction by the extension and retraction of the cylinder to achieve the switching of the clamp's state.
[0024] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description
[0025] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which:
[0026] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
[0027] Figure 1 An exploded view of this application is shown;
[0028] Figure 2 A schematic diagram of the structure in the clamping state of this application is shown;
[0029] Figure 3 A top view of this application is shown;
[0030] Figure 4 It shows Figure 3 Cross-sectional view from the perspective of the middle BB;
[0031] Figure 5 It shows Figure 3 Cross-sectional view from a mid-CC perspective;
[0032] Figure 6 A partial view of the sliding component of this application is shown;
[0033] Figure 7 A schematic diagram of the guide post structure of this application is shown;
[0034] Figure 8 A schematic diagram of the positioning pin of this application is shown;
[0035] Figure 9 A schematic diagram of the elastic plunger of this application is shown.
[0036] Explanation of the labels in the diagram:
[0037] M, workpiece; L1, first direction; L2, second direction; L3, third direction;
[0038] 1. Substrate; 11. Positioning groove;
[0039] 2. Pressure plate; 21. Through opening;
[0040] 3. Elastic plunger; 31. Sleeve; 32. Plunger; 33. Ball bearing; 34. Spring;
[0041] 4. Actuator; 41. Sliding component; 411. Guide groove; 42. Through groove; 421. Locking end; 422. Insertion end; 423. Connecting section; 4231. Guide surface; 43. Guide post; 431. Screw; 432. Collet; 433. Stepped surface; 434. Positioning surface; 44. Positioning pin; 441. Boss; 442. Threaded section; 443. Stepped part. Detailed Implementation
[0042] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0043] Reference Figures 1-9 As shown, this embodiment provides a clamping fixture, which is mainly used for power devices (hereinafter referred to as workpieces). Figure 1 The workpiece is shown in section M). Specifically, it is used to clamp the workpiece after it has been coated with glue. This fixture mainly includes a base plate 1, a pressure plate 2, and an actuator 4. The following is a detailed description of each component.
[0044] like Figure 1 As shown, the substrate 1 is a planar plate, such as a rectangular plate. The top surface of the substrate 1 is provided with a positioning groove 11 for embedding the workpiece. That is, the shape and size of the positioning groove 11 are basically adapted to the workpiece so that the workpiece can be placed in.
[0045] The positioning slot 11 can be one or more. For example, this embodiment shows nine positioning slots 11, distributed in a 3x3 pattern, which can hold up to nine workpieces at a time. When placing the workpieces, the top surface of the substrate 1 is placed horizontally with the top surface facing upwards.
[0046] The pressure plate 2 and the substrate 1 are vertically opposite each other and located on the side where the positioning groove 11 is located, that is, the pressure plate 2 is located on the upper side of the substrate 1. In this embodiment, the vertical direction can also be understood as the thickness direction of the substrate 1. Figure 1 The direction shown in L3 can be understood as vertical.
[0047] The bottom surface of the pressure plate 2 is provided with clamping components that correspond one-to-one with the positioning grooves 11, that is, one positioning groove 11 corresponds to one clamping component. The clamping components are mainly used to provide elastic force to clamp the workpiece in the positioning groove 11. Since the structures of each clamping component are basically the same, this embodiment will only use one of them as an example for specific description.
[0048] The clamping assembly includes at least one elastic member with elasticity. The top surface of the workpiece is basically rectangular. In order to clamp the workpiece more stably, in some embodiments, each clamping assembly preferably has four elastic members, which correspond to the four corners of the top surface of the workpiece. During operation, the workpiece is clamped mainly by the elastic force of the elastic members. Compared with rigid clamping force, elastic force has better self-adaptive ability, thereby reducing damage to the workpiece.
[0049] In some embodiments, the elastic member is preferably an elastic plunger 3 capable of elastic expansion and contraction in the vertical direction, such as... Figure 9 As shown, the elastic plunger 3 mainly includes a sleeve 31, a plunger 32, and a spring 34. The plunger 32 is coaxially inserted in the sleeve 31 and can move axially relative to the sleeve 31. The spring 34 is located inside the sleeve 31, with its two ends abutting against the inner end of the plunger 32 and the inner top wall of the sleeve 31, respectively. In its natural state (i.e., when no external force is applied), the spring 34 provides elastic force to drive the plunger 32 to maintain its extension tendency.
[0050] In some embodiments, the end of the plunger 32 away from the spring 34 is provided with a ball 33, which directly presses against the surface of the workpiece during operation.
[0051] The pressure plate 2 can move vertically relative to the substrate 1 to generate a first state and a second state.
[0052] In the first state, pressure plate 2, as Figure 2 and Figure 4As shown, the pressure plate 2 pushes the elastic member to press against the workpiece in the positioning groove 11 to achieve clamping of the workpiece. That is, in the first state, the workpiece will overcome the elastic force of the spring 34 to drive the plunger 32 to contract, thereby compressing the spring 34. In this way, the spring 34 generates elastic force, which pushes the plunger 32 to press against the surface of the workpiece to achieve clamping of the workpiece.
[0053] In the second state, the pressure plate 2 can be removed from the substrate 1. When it is necessary to place a workpiece into or remove it from the positioning groove 11, the pressure plate 2 can be switched to the second state, and then the pressure plate 2 can be removed to expose the top of the substrate 1 for placing or removing the workpiece.
[0054] As can be seen, in this embodiment, when the pressure plate 2 is in the first state, the entire clamp is in a clamped state, and when the pressure plate 2 is in the second state, the entire clamp is in a released state.
[0055] like Figure 1 and Figure 2 As shown, the actuator 4 includes a sliding member 41 that can slide relative to the pressure plate 2 along a first direction, the first direction being perpendicular to the vertical, wherein... Figure 1 The direction shown in L1 is the first direction. In this embodiment, the first direction can also be understood as the width direction of the pressure plate 2. The actuator 4 is configured to drive the pressure plate 2 to switch between the first state and the second state by sliding the sliding member 41.
[0056] In other words, the state switching of the pressure plate 2, or the state switching of the clamping and releasing of the entire fixture, is achieved by the sliding member 41 sliding relative to the pressure plate 2 in the first direction. Compared with the traditional method of controlling the release and clamping of the fixture by turning screws, it is undoubtedly more convenient to operate.
[0057] Furthermore, because the clamp provided in this embodiment relies on the linear sliding of the sliding member 41 to achieve clamping and release, it can be applied to automated equipment. For example, a cylinder is provided between the pressure plate 2 and the sliding member 41, and the sliding member 41 is driven to slide relative to the pressure plate 2 in a first direction by the extension and retraction of the cylinder to achieve the switching of the clamp's state.
[0058] In order to allow the sliding member 41 to slide relative to the pressure plate 2 in a first direction, in some embodiments, such as Figure 2 As shown, the sliding member 41 is preferably a planar plate structure, which is stacked on the top surface of the pressure plate 2, so that the sliding member 41 can slide along the top surface of the pressure plate 2. In order to limit the sliding member 41 to slide in the first direction, at least one set of guide components is provided between the sliding member 41 and the pressure plate 2.
[0059] This embodiment provides a specific guiding component, such as... Figure 2 As shown, the guide assembly includes a positioning pin 44 and a guide groove 411 formed on the sliding member 41 and extending in a first direction. The top of the positioning pin 44 forms a boss 441, which restricts the sliding member 41 from moving vertically relative to the sliding member 41. That is, in the assembled state, the sliding member 41 is restricted vertically between the boss 441 and the top surface of the pressure plate 2, but the sliding member 41 can slide along the top surface of the pressure plate 2.
[0060] In some embodiments, the locating pin 44 is preferably threaded onto the pressure plate 2, specifically, as shown in... Figure 8 As shown, the locating pin 44 can be a stepped screw, which mainly consists of three parts: the top cap end forms the aforementioned boss 441, the lower threaded section 442 serves as the part connected to the sliding member 41, and the step portion 443 located between the cap end and the threaded section 442. The step portion 443 is basically matched with the width of the guide groove 411, that is, the step portion 443 can move in the first direction within the guide groove 411.
[0061] In order to allow the guide assembly to limit the movement of the sliding member 41 along a first direction, in some embodiments, the guide assembly includes at least two sets, for example, two sets. Figure 2 As shown, the two sets of guide components are arranged side by side along the second direction, which is perpendicular to the first direction. Figure 1 The direction shown in L2 can be understood as the second direction; if the first direction is understood as the width direction of the pressure plate 2, then the second direction can be understood as the length direction of the pressure plate 2. That is, two guide grooves 411 extending along the first direction are provided on the sliding member 41; each guide groove 411 is provided with at least one positioning pin 44. For example, this embodiment shows the case where each guide groove 411 is provided with two positioning pins 44. In this way, with the cooperation of the positioning pins 44 and the guide grooves 411, the sliding member 41 can only slide relative to the pressure plate 2 along the first direction.
[0062] Of course, in some other alternative embodiments, only one guide component may be provided, that is, only one guide groove 411 is opened on the surface of the sliding member 41. However, in this case, at least two positioning pins 44 need to be provided in the guide groove 411 to limit the sliding member 41 to slide along the first direction.
[0063] To achieve the state switching of the sliding member 41 driving the pressure plate 2, such as Figure 1 As shown, the actuator 4 provided in this embodiment also includes a guide post 43, which is fixed to the top surface of the substrate 1 and extends vertically. Preferably, the guide post 43 is installed on the substrate 1 by a threaded connection, for example, as shown in the figure. Figure 7As shown, the lower section of the guide post 43 is a screw 431 structure, which is adapted to the threaded hole on the surface of the substrate 1. During installation, the screw 431 of the guide post 43 is screwed into the threaded hole on the surface of the substrate 1. In addition, in order to control the screwing depth of the guide post 43, a positioning surface 434 is provided on the guide post 43. When the positioning surface 434 abuts against the surface of the substrate 1, the guide post 43 cannot be screwed in further, thus controlling the screwing depth of the guide post 43.
[0064] In addition, a locking head 432 is formed at the top of the guide post 43. Specifically, the locking head 432 can be formed by cutting a circumferential groove around the top of the guide post 43, and the upper area of the groove is the locking head 432.
[0065] The pressure plate 2 has a through hole at the position corresponding to the guide post 43, through which the clamp 432 of the guide post 43 can pass vertically. The pressure plate 2 is vertically mounted on the guide post 43 through the through hole. In this way, the guide post 43 can guide the vertical movement of the pressure plate 2, so that the pressure plate 2 can only move vertically relative to the guide post 43.
[0066] During operation, the pressure plate 2 presses down relative to the base, which in turn drives the elastic plunger 3 to press down, thereby making the elastic plunger 3 press against the surface of the workpiece to clamp the workpiece.
[0067] like Figure 6 As shown, the sliding member 41 has a through groove 42 extending in the first direction at the position corresponding to the guide post 43; the through groove 42 includes an insertion end 422 and a locking end 421, and the guide post 43 can move between the locking end 421 and the insertion end 422 along the through groove 42.
[0068] The insertion end 422 is configured to allow the card head 432 to pass vertically, and the locking end 421 is configured to restrict the card head 432 from passing vertically. That is, the diameter of the insertion end 422 is larger than the diameter of the card head 432 to ensure that the card head 432 can pass through, and the diameter of the locking end 421 is smaller than the diameter of the card head 432 so that the card head 432 cannot pass directly through the locking end 421 vertically.
[0069] In addition, the through groove 42 also includes a connecting section 423, through which the locking end 421 and the insertion end 422 are connected and connected, and the guide post 43 can move between the locking end 421 and the insertion end 422 via the connecting section 423.
[0070] like Figure 6 As shown, the top walls on both sides of the connecting section 423 are inclined guide surfaces 4231. The inclination direction of the guide surfaces 4231 is to gradually slope downward from the locking end 421 to the insertion end 422 along a first direction. That is, the guide surfaces 4231 are higher as they are closer to the locking end 421, and the size of the connecting section 423 does not allow the jack 432 to pass vertically.
[0071] The sliding member 41 slides relative to the pressure plate 2 in a first direction to generate an unlocked position and a locked position.
[0072] When the sliding member 41 is in the locked position, the guide post 43 is in the locking end 421 and the bottom surface of the locking head 432 abuts against the top surface of the sliding member 41 so that the pressure plate 2 enters the first state; in the unlocked position, the guide post 43 is in the insertion end 422 so that the pressure plate 2 enters the second state.
[0073] Specifically, taking the initial state where the sliding member 41 is in the unlocked position as an example, when it is necessary to clamp the workpiece, the sliding member 41 is pulled to slide forward in the first direction. During the sliding process, the guide post 43 gradually enters the locking end 421 from the insertion end 422 via the connecting section 423 relative to the sliding member 41. When the guide post 43 passes through the connecting section 423, under the guidance and pushing of the inclined guide surface 4231 of the connecting section 423, the sliding member 41 and the pressure plate 2 move downward relative to the guide post 43 until the guide post 43 enters the locking end 421 and the locking is completed. At this time, the pressure plate 2 is in the first state.
[0074] Conversely, when unlocking or releasing the clamp is required, the sliding member 41 is pulled to slide in the opposite direction in the first direction. During the sliding process, the guide post 43 will gradually enter the insertion end 422 from the locking end 421 via the connecting section 423 relative to the sliding member 41.
[0075] In addition, to control the maximum downward movement distance of the pressure plate 2 relative to the guide post 43, i.e., to limit the lower position of the pressure plate 2, in some embodiments, such as... Figure 7 As shown, the guide post 43 has a stepped surface 433 located below the latch head 432, such as... Figure 4 As shown, when the guide post 43 is at the locking end 421, the sliding member 41 and the pressure plate 2 are vertically positioned between the step surface 433 and the locking head 432. It can also be understood that when the guide post 43 is at the locking end 421, the top surface of the sliding member 41 is basically against the bottom surface of the locking head 432, and the bottom surface of the sliding member 41 is basically against the step surface 433. When the pressure plate 2 is pressed down to the step surface 433, it cannot continue to press down due to the obstruction and restriction of the step surface 433.
[0076] It is worth noting that if the pressure plate 2 is not lowered, i.e., the step surface 433 is not provided, the weight of the entire pressure plate 2 and sliding member 41 will press on the workpiece when clamping it, which will cause the workpiece to be damaged due to excessive clamping force. However, after the step surface 433 is provided, the weight of the aforementioned entire structure will be borne by the step surface 433, and the clamping force on the workpiece will be provided by the elastic force of the elastic plunger 3.
[0077] Furthermore, after the workpiece is clamped by the fixture, it is generally dried by heating to accelerate the solidification of the adhesive. Therefore, in order to better transfer heat to the workpiece, in some embodiments, such as... Figure 1 As shown, the pressure plate 2 and / or the base plate 1 are provided with openings 21 corresponding to the positioning grooves 11. Preferably, both the pressure plate 2 and the base plate 1 are provided with openings 21. In this way, when the workpiece is clamped, the top part of the workpiece is exposed to the outside through the openings 21 on the pressure plate 2, and the bottom part of the workpiece is exposed to the outside through the openings 21 on the base plate 1. At this time, the openings 21 are equivalent to a heat channel, so that the workpiece can be directly heated.
[0078] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this application can be achieved, and this is not limited herein.
[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0080] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A compression clamp, characterized in that, include: A substrate, wherein the top surface of the substrate is provided with at least one positioning groove for embedding a workpiece; A pressure plate is vertically opposite to a substrate and located on one side of a positioning groove. The bottom surface of the pressure plate is provided with a clamping assembly corresponding to each positioning groove. The clamping assembly includes at least one elastic member with elasticity. The pressure plate can move vertically relative to the substrate to generate a first state and a second state. In the first state, the pressure plate pushes the elastic member to press against the workpiece in the positioning groove. In the second state, the pressure plate can be removed from the substrate. The actuator includes a sliding member that can slide relative to the pressure plate along a first direction perpendicular to the vertical. The sliding member drives the actuator to switch the pressure plate between a first state and a second state.
2. A compression clamp according to claim 1, wherein, The actuator further includes a guide post, which is fixed to the top surface of the base plate and extends vertically; the pressure plate is movably inserted through the guide post vertically; a clamping head is formed at the top of the guide post; A sliding member is disposed on the top surface of the pressure plate. The sliding member has a through groove extending in a first direction corresponding to the position of the guide post. The through groove includes an insertion end and a locking end. The guide post can move between the locking end and the insertion end along the through groove. The insertion end is configured to allow the locking head to pass vertically, and the locking end is configured to restrict the locking head from passing vertically. The sliding member slides relative to the pressure plate in the first direction to generate an unlocked position and a locked position. In the locked position, the guide post is at the locking end and the locking head abuts against the top surface of the sliding member to put the pressure plate into a first state. In the unlocked position, the guide post is at the insertion end to put the pressure plate into a second state.
3. A compression clamp according to claim 2, wherein, The through groove also includes a connecting section, through which the locking end and the insertion end are connected. The top walls on both sides of the connecting section are inclined guide surfaces, and the inclination direction of the guide surfaces is to gradually slope downward from the locking end to the insertion end along a first direction.
4. A compression clamp according to claim 2 or 3, wherein, At least one set of guide components is provided between the sliding member and the pressure plate, and the guide components are used to guide the sliding member and the pressure plate to move relative to each other in a first direction.
5. A compression clamp according to claim 4, wherein, The guide assembly includes a guide groove formed on the sliding member and extending along a first direction, and at least two positioning pins fixed on the sliding member and passing through the guide groove, wherein the top of the positioning pin forms a boss, and the boss restricts the sliding member from moving vertically relative to the sliding member. Alternatively, the guide assembly may include at least two sets, with the two sets of guide assemblies arranged side by side along a second direction, the second direction being perpendicular to the first direction; each guide assembly includes a guide groove formed on the sliding member and extending along the first direction, and at least one positioning pin fixed on the sliding member and passing through the guide groove, the top of the positioning pin forming a boss, the boss restricting the sliding member from moving vertically relative to the sliding member.
6. A compression clamp according to claim 2, wherein, The guide post has a stepped surface located below the locking head. When the guide post is in the locking position, the sliding member and the pressure plate are vertically positioned between the stepped surface and the locking head.
7. A compression clamp according to claim 2, wherein The guide post is threaded onto the substrate.
8. A compression clamp according to claim 1, wherein, Each clamping assembly includes four elastic components, each corresponding to one of the four corners of the workpiece.
9. A compression clamp according to claim 1, wherein, The elastic member is an elastic plunger capable of elastic expansion and contraction along the vertical direction.
10. A compression clamp according to claim 1, wherein, The through hole is arranged on the corresponding positioning groove of the pressing plate and / or the base plate.