Destressing device

Abstract

The destressing device comprises a base, a positioning mechanism and a beating assembly, the positioning mechanism is arranged on the base, the positioning mechanism is provided with a positioning space, the positioning space is provided with an opening, the positioning space is used for containing a to-be-machined part, and the opening is used for exposing the to-be-machined part arranged in the positioning space; the beating assembly comprises a driving part and a beating part, the beating part is arranged on the base in a sliding mode and corresponds to the opening, the driving part is in transmission fit with the beating part, the driving part can drive the beating part to move in the direction of the opening, and the beating part is driven by the driving part to move in the direction of the opening. According to the destressing device provided by the invention, the machining precision can be improved, the machining steps are reduced, and the machining cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of processing equipment, and in particular to a stress relief device. Background Art

[0002] Bending is a common industrial process. After forming a material, it is bent into the desired shape. However, residual stress at the bend may cause deformation of the part. To reduce or eliminate this stress, the workpiece is usually reshaped by first pressing the bent corner from the outside to an overbend state, and then stretching the workpiece from the inside to the preset shape, thereby improving the stress. However, this processing method is cumbersome, resulting in costly processing, and has poor processing accuracy, which is not conducive to improving the quality of the workpiece. Utility Model Content

[0003] In view of this, the present application provides a stress relief device to solve the problem of complicated workpiece stress relief steps and high cost in the prior art.

[0004] The present application provides a stress relief device, comprising:

[0005] base;

[0006] A positioning mechanism, the positioning mechanism being disposed on the base, the positioning mechanism being provided with a positioning space, the positioning space having an opening, the positioning space being used to accommodate a workpiece to be processed, and the opening being used to expose the workpiece to be processed disposed in the positioning space; and

[0007] A striking assembly includes a driving member and a striking member, wherein the striking member is slidably arranged on the base, the striking member is arranged corresponding to the opening, the driving member is in transmission cooperation with the striking member, and the driving member can drive the striking member to move toward the opening so that the striking member strikes the workpiece to be processed to remove stress.

[0008] The stress relief device provided in the present application can strike the workpiece to be processed arranged on the positioning mechanism through the striking component, apply external force to the workpiece to be processed, thereby reducing or eliminating the stress of the workpiece to be processed, reducing the processing steps of stress relief of the workpiece, reducing the processing cost of the workpiece, and improving the processing accuracy of the workpiece.

[0009] In a possible embodiment, the positioning space has a positioning groove portion and a bending groove portion that are connected to each other, the bending groove portion is bent relative to the positioning groove portion toward the striking member, and the opening is formed on a side of the bending groove portion away from the positioning groove portion;

[0010] The width of at least part of the bending groove is greater than the width of the positioning groove, so that the bending portion of the workpiece to be processed accommodated in the positioning space forms a clearance fit with at least part of the bending groove.

[0011] In a possible embodiment, the bending groove portion includes a first inner wall and a second inner wall relative to each other, the first inner wall is located on the outside of the second inner wall, the first inner wall is an arc-shaped wall surface for supporting the outer wall surface of the arc-shaped segment of the workpiece to be processed, and the second inner wall is provided with a gap, and the gap is used to avoid the inner wall surface of the arc-shaped segment of the workpiece to be processed.

[0012] In a possible embodiment, there are two positioning mechanisms, and the two positioning mechanisms are arranged at relative intervals. The driving member can simultaneously drive the striking members of the two positioning mechanisms, and the two striking members can respectively hit the workpieces to be processed arranged in the two positioning spaces.

[0013] In one possible embodiment, the driving member has a first contact surface, the striking member has a second contact surface, a preset angle is provided between the first contact surface and the second contact surface, and the first contact surface can abut against the second contact surface so that the driving member drives the striking member to move toward the direction close to the opening.

[0014] In a possible embodiment, the stress relief device includes a cover plate, which is located on the top of the base and can move along the height direction of the stress relief device. The cover plate can abut against the workpiece to be processed. The cover plate has an avoidance hole, and the driving member passes through the avoidance hole.

[0015] In a possible embodiment, the striking member includes a sliding block, a first striking block and a second striking block, the sliding block is slidably disposed on the base, the first striking block and the second striking block are connected to the same side of the sliding block, the first striking block is elastically disposed on the sliding block, and when in a natural state, the first striking block protrudes from the surface of the sliding block relative to the second striking block.

[0016] In a possible implementation, a dimension of the first striking block protruding from the positioning mechanism is L1, a dimension of the second striking block protruding from the positioning mechanism is L2, and L1 and L2 satisfy the relationship: 0.05mm≤L1-L2≤0.15mm.

[0017] In a possible implementation manner, the areas of the striking end surfaces of the first striking block and the second striking block are inconsistent; and / or,

[0018] The first striking block and the second striking block are spaced apart from each other.

[0019] In a possible implementation, the positioning mechanism includes a first positioning member and a second positioning member. The first positioning member and the second positioning member can be closer to or farther from each other, and the positioning space is defined between the first positioning member and the second positioning member. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 A schematic structural diagram of an embodiment of the stress relief device provided in this application;

[0022] Figure 2 A schematic diagram of the internal structure of an embodiment of the stress relief device provided in this application;

[0023] Figure 3 A schematic diagram of the internal structure of an embodiment of the stress relief device provided by the present application from another perspective;

[0024] Figure 4 for Figure 3 A partial enlarged view of middle Ⅰ;

[0025] Figure 5 A schematic diagram of the workflow of one embodiment of the positioning mechanism provided in this application.

[0026] Description of reference numerals:

[0027] 1- base;

[0028] 2- Positioning mechanism;

[0029] 21- Positioning space;

[0030] 211-opening;

[0031] 212- positioning groove portion;

[0032] 213- bending groove portion;

[0033] 213a-first inner wall;

[0034] 213b- second inner wall;

[0035] 213b1-avoidance department;

[0036] 22-first positioning member;

[0037] 23- second positioning member;

[0038] 231-third contact surface;

[0039] 24-pressure rod;

[0040] 25-Push Block;

[0041] 251- fourth contact surface;

[0042] 26- second elastic member;

[0043] 3-Strike component;

[0044] 31- driving member;

[0045] 311-first contact surface;

[0046] 32- striking piece;

[0047] 321-slider;

[0048] 322-First strike block;

[0049] 323-Second hit block;

[0050] 324-second contact surface;

[0051] 325-first elastic member;

[0052] 4-cover plate;

[0053] 5-Mounting plate;

[0054] 6-Parts to be processed;

[0055] 61-first material layer;

[0056] 62- second material layer;

[0057] X-first direction;

[0058] Y-second direction;

[0059] Z-third direction. DETAILED DESCRIPTION

[0060] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0061] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0062] The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the embodiments of the present application and the accompanying claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0063] It should be understood that the term "and / or" used herein only means an association relationship of the associated objects, and means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0064] As shown in Figure 1 The stress relief device provided by the embodiments of the present application includes a base 1, a positioning mechanism 2 and a hitting assembly 3. In the figure, the X direction is the first direction, the Y direction is the second direction, and the Z direction is the third direction. For example, the first direction can be the length direction of the stress relief device, the second direction can be the width direction of the stress relief device, and the third direction can be the height direction of the stress relief device.

[0065] The base 1 is used to support the positioning mechanism 2. The base 1 can be provided in the form of a flat plate, as long as the base 1 can support and install the positioning mechanism 2. The specific form of the base 1 is not limited herein.

[0066] As shown in Figure 2 and Figure 3 The positioning mechanism 2 is provided with a positioning space 21 having an opening 211. The positioning space 21 is used to accommodate a workpiece 6 to be processed, and the opening 211 is used to expose the workpiece 6 to be processed arranged in the positioning space 21. The positioning mechanism 2 is arranged on the base 1 and is used to position the workpiece 6 to be processed. The base 1 can support the workpiece 6 to be processed. The positioning space 21 can relatively fix the position of the workpiece 6 to be processed, which is convenient for subsequent processing. The positioning space 21 can be a groove recessed along the thickness direction of the stress relief device. Along the second direction of the positioning device, the Y direction in the figure is the second direction of the stress relief device. One side or both sides of the positioning space 21 have the opening 211. When the workpiece 6 to be processed is installed in the positioning space 21, at least part of the workpiece 6 to be processed can be exposed from the opening 211, so that the hitting assembly 3 can hit the workpiece 6 to be processed from the position of the opening 211.

[0067] As shown in Figure 1 and Figure 2As shown, the striking member 32 is slidably disposed on the base 1 and is disposed corresponding to the opening 211. The driving member 31 is in transmission engagement with the striking member 32. The driving member 31 can drive the striking member 32 toward the opening 211, so that the striking member 32 strikes the workpiece 6 to relieve stress. The driving member 31 can apply a force to the striking member 32 in a direction toward the opening 211, thereby striking the workpiece 6. When there is a gap between the striking member 32 and the workpiece 6, the driving member 31 can drive the striking member 32 to move a certain distance before contacting the workpiece 6 to achieve striking. Alternatively, when the striking member 32 contacts the workpiece 6, the driving member 31 applies a force to the striking member 32, which is then further transmitted to the workpiece 6 via the striking member 32 to achieve striking.

[0068] The stress relief device provided in the embodiment of the present application is used to tap the workpiece 6 to be processed. The workpiece 6 to be processed is arranged on the positioning mechanism 2 by hitting the striking component 3, and external force is applied to the workpiece 6 to be processed, thereby improving the stress at the bending position of the workpiece 6 to be processed, thereby improving the quality of the workpiece 6 to be processed. For example, it can reduce the possibility of stress release and an increase in the bending position angle due to subsequent CNC processing. Compared with the current stress relief method, the solution provided in the embodiment of the present application has fewer steps, can reduce the processing cost of the workpiece 6 to be processed, and can improve the processing accuracy.

[0069] like Figure 3 As shown, in a possible embodiment, the positioning space 21 has a connected positioning groove portion 212 and a bending groove portion 213, the bending groove portion 213 is bent toward the striking member 32 relative to the positioning groove portion 212, and the opening 211 is formed on the side of the bending groove portion 213 away from the positioning groove portion 212.

[0070] The positioning groove portion 212 can be a groove with a relatively straight inner wall, and the bending groove portion 213 can be a groove with a relatively curved inner wall, which are respectively used to adapt to the shapes of different positions of the workpiece 6 to be processed. The stress relief device provided in the embodiment of the present application is used to process the workpiece 6 to be processed that has been bent. The workpiece 6 to be processed has at least one curved portion, and the shape of the positioning space 21 is adapted to the shape of the workpiece 6 to be processed. For example, the workpiece 6 to be processed can be in a shape with two bent portions, similar to a "U" shape. Correspondingly, the positioning space 21 includes two bending groove portions 213, which are respectively arranged corresponding to the two bending positions of the workpiece 6 to be processed, and the two bending groove portions 213 are connected by a positioning groove portion 212. According to the specific shape of the workpiece 6 to be processed, the two ends of the bending groove portion 213 can be respectively provided with positioning groove portions 212 connected thereto.

[0071] The width of at least a portion of the bending groove 213 is greater than the width of the positioning groove 212, so that the bending portion of the workpiece 6 accommodated in the positioning space 21 forms a clearance fit with at least a portion of the bending groove 213. Because when the striking assembly 3 strikes the workpiece 6, the workpiece 6 may deform, especially the bending portion of the workpiece 6. The clearance fit between the bending groove 213 and the bending portion of the workpiece 6 can leave space for the deformation of the workpiece 6, allowing the compressive stress to better interact with the tensile stress, thereby offsetting or eliminating the stress of the workpiece 6 at the bending position. The clearance fit is a gap between the inner wall of the bending groove 213 and the outer wall of the workpiece 6. The size of the gap is 0.05mm to 0.15mm, for example, 0.05mm, 0.1mm or 0.15mm. The shape of the gap can be set according to the actual shape of the workpiece 6.

[0072] like Figure 3 As shown, in a possible embodiment, the bending groove portion 213 includes a first inner wall 213a and a second inner wall 213b relative to each other, the first inner wall 213a is located on the outside of the second inner wall 213b, the first inner wall 213a is an arc-shaped wall surface for supporting the outer wall surface of the arc segment of the workpiece 6 to be processed, and the second inner wall 213b is provided with a gap 213b1, and the gap 213b1 is used to avoid the inner wall surface of the arc segment of the workpiece 6 to be processed.

[0073] The workpiece 6 has curved outer and inner walls at the bend. The first inner wall 213a of the bending groove 213 corresponds to the outer wall of the workpiece 6, while the second inner wall 213b corresponds to the inner wall of the workpiece 6. The first inner wall 213a and the outer wall of the workpiece 6 are loosely fitted, representing a loose fit between the bending groove 213 and the bend of the workpiece 6. The second inner wall 213b has a relief portion 213b1, which can be an inclined surface. This maintains a significant distance between the second inner wall 213b and the inner wall of the workpiece 6, creating a clearing space when the striking assembly 3 strikes the workpiece 6, thereby facilitating the elimination or reduction of stress.

[0074] In a possible embodiment, the stress relief device includes two positioning mechanisms 2, which are arranged relative to each other along the first direction of the stress relief device. The driving member 31 can simultaneously drive the striking members 32 of the two positioning mechanisms 2, and the two striking members 32 can respectively hit the workpieces arranged in the two positioning spaces 21.

[0075] The driving member 31 is arranged between the two positioning mechanisms 2. When moving, the driving member 31 can simultaneously drive the two striking members 32 located on both sides thereof. The two striking members 32 can simultaneously strike the workpiece 6 to be processed installed on the two positioning mechanisms 2, thereby improving processing efficiency.

[0076] like Figure 1 As shown, in a possible embodiment, the driving member 31 has a first contact surface 311, and the striking member 32 has a second contact surface 324. There is a preset angle between the first contact surface 311 and the second contact surface 324, and the first contact surface 311 can abut against the second contact surface 324 to enable the driving member 31 to drive the striking member 32 to move toward the direction close to the opening 211.

[0077] The driving member 31 is capable of moving along the third direction of the stress relief device, with the Z direction in the figure representing the third direction. When the driving member 31 abuts the striking member 32, the first contact surface 311 and the second contact surface 324 abut, thereby converting the driving member 31's movement along the third direction of the stress relief device into movement of the striking member 32 along the second direction of the stress relief device. This allows the striking member 32 to move toward and strike the workpiece 6. The provision of the first contact surface 311 and the second contact surface 324 allows for more flexible positioning of the driving member 31 and the striking member 32. When the stress relief device is provided with multiple positioning mechanisms 2, multiple striking members 32 can be provided accordingly, each of which is provided with a second contact surface 324. A single driving member 31 can be provided with multiple first contact surfaces 311, enabling the driving member 31 to simultaneously drive multiple striking members 32. For example, a first contact surface 311 can be provided on both sides of the driving member 31 along the first direction of the stress relief device.

[0078] like Figure 1 As shown, in a possible embodiment, the stress relief device includes a cover plate 4, the cover plate 4 is located on the top of the base 1, the cover plate 4 can move along the third direction of the stress relief device, the cover plate 4 can abut against the workpiece 6 to be processed, the cover plate 4 has an avoidance hole (not shown in the figure), and the driving member 31 passes through the avoidance hole. The cover plate 4 can cover the positioning space 21 along the third direction of the stress relief device, thereby limiting the workpiece 6 to be processed set in the positioning space 21, so that when the striking member 32 strikes the workpiece 6 to be processed, the workpiece 6 to be processed will not be separated from the positioning space 21. A mounting plate 5 can be set on the top of the cover plate 4, and multiple driving members 31 can be set on the mounting plate 5. The mounting plate 5 can realize the synchronous movement of multiple driving members 31.

[0079] In one possible embodiment, the striking member 32 includes a sliding block 321, a first striking block 322, and a second striking block 323. The sliding block 321 is slidably disposed on the base 1. The first striking block 322 and the second striking block 323 are connected to the same side of the sliding block 321. The first striking block 322 is elastically disposed on the sliding block 321. In a natural state, that is, when the striking member 32 is not striking the workpiece 6, the first striking block 322 protrudes from the surface of the sliding block 321 relative to the second striking block 323. The first striking block 322 is closer to the center of the base 1 than the second striking block 323, and the first striking block 322 can strike different areas of the workpiece 6.

[0080] The workpiece 6 to be processed can be formed by forming a variety of different materials, and the workpiece 6 to be processed includes a first material layer 61 and a second material layer 62, and the first material layer 61 and the second material layer 62 are stacked. For example, the workpiece 6 to be processed in the embodiment of the present application can be formed of titanium and aluminum, the first material layer 61 can be titanium, and the second material layer 62 can be aluminum. After the workpiece is bent, the titanium material is on the outside of the aluminum material. For the end face of the workpiece 6 to be processed, one side of the end face is titanium and the other side is aluminum. Due to the different mechanical properties of different materials, the force requirements for striking at different positions of the workpiece to be processed during stress relief are also different. The striking member 32 provided in the embodiment of the present application includes a first striking block 322 and a second striking block 323. The first striking block 322 and the second striking block 323 can respectively strike areas of different materials on the end face of the workpiece 6 to be processed, thereby better matching the striking requirements of different materials during stress relief. Specifically, a first striking block 322 and a second striking block 323 are slidably disposed on the base 1. The first striking block 322 is closer to the end face of the workpiece 6 to be processed than the second striking block 323. A first elastic member 325 can be disposed between the first striking block 322 and the sliding block 321. The first elastic member 325 can be a rubber pad or a spring. When the sliding block 321 is pushed by the driving member 31, the first striking block 322 and the second striking block 323 can both be pushed by the sliding block 321. The first striking block 322 and the second striking block 323 are respectively corresponding to the end face of the workpiece 6 having a different material than the end face, so as to strike the corresponding material. Since the first striking block 322 and the sliding block 321 are elastically connected, the first elastic member 325 can be deformed. When in a natural state, the first striking block 322 protrudes more than the surface of the second striking block 323, so that the first striking block 322 can contact the end face of the workpiece 6 to be processed before the second striking block 323. Therefore, the first striking block 322 can strike the workpiece 6 to be processed first, and increase the continuous striking time compared to the second striking block 323, thereby achieving differentiated striking effects for materials in different areas, which is beneficial to improving the quality of the workpiece 6 to be processed.

[0081] like Figure 4As shown, in one possible embodiment, the first striking block 322 protrudes along the direction approaching the positioning mechanism 2 by a dimension L1, and the second striking block 323 protrudes along the direction approaching the positioning mechanism 2 by a dimension L2, and L1 and L2 satisfy the relationship: 0.05mm≤L1-L2≤0.15mm. For example, the value of L1-L2 can be 0.05mm, 0.1mm, 0.15mm, etc. By setting the difference between L1 and L2 within an appropriate range, the first striking block 322 does not protrude too much. When the driving member 31 has not yet driven the striking member 32, the first striking block 322 is closer to the end surface of the workpiece 6 to be processed than the second striking block 323, and a reasonable gap is maintained between the second striking block 323 and the end surface of the workpiece 6 to be processed. When the sliding block 321 pushes the first striking block 322 and the second striking block 323 to move toward the workpiece 6 , the first striking block 322 can strike the workpiece 6 first together with the second striking block 323 , thereby achieving a stronger striking effect.

[0082] In a possible embodiment, the areas of the striking end surfaces of the first striking block 322 and the second striking block 323 are inconsistent; and / or, the first striking block 322 and the second striking block 323 are spaced apart from each other.

[0083] The first striking block 322 and the second striking block 323 can be configured with different shapes based on the desired striking effect on the workpiece 6, thereby achieving different striking areas when striking the workpiece 6, thereby flexibly meeting the stress relief requirements of the workpiece. A gap can also be provided between the first striking block 322 and the second striking block 323 to reduce friction between the first striking block 322 and the second striking block 323 during movement. By adjusting the gap between the first striking block 322 and the second striking block 323, the relative positions of the first striking block 322 and the second striking block 323 and the workpiece 6 can be adjusted, thereby adjusting the striking position of the workpiece 6.

[0084] like Figure 3 As shown, in one possible embodiment, the positioning mechanism 2 includes a first positioning member 22 and a second positioning member 23. The first positioning member 22 and the second positioning member 23 can move closer to or farther from each other, and a positioning space 21 is defined between the first positioning member 22 and the second positioning member 23. Specifically, the second positioning member 23 is located on the inner side of the workpiece 6 to be processed, that is, the second positioning member 23 is closer to the striking assembly 3 than the first positioning member 22, and the first positioning member 22 is located on the outer side of the workpiece 6 to be processed. The second positioning member 23 is slidably disposed on the base 1. When installing the workpiece 6 to be processed or removing a workpiece that has been processed, the second positioning member 23 can slide to facilitate the installation or removal of the workpiece 6 to be processed.

[0085] like Figure 5As shown, in a possible embodiment, the positioning mechanism 2 also includes a push block 25 and a pressure rod 24, the pressure rod 24 is connected to the second positioning member 23, the push block 25 is located on the side of the second positioning member 23 away from the first positioning member 22, the push block 25 has a fourth contact surface 251 on the side close to the second positioning member 23, the second positioning member 23 has a third contact surface 231 on the side close to the push block 25, the third contact surface 231 and the fourth contact surface 251 have a preset angle, the second positioning member 23 has a second elastic member 26 on the side away from the pressure rod 24, one end of the second elastic member 26 is connected to the second positioning member 23, and the other end of the second elastic member 26 is connected to the base 1, and the base 1 can be provided with a groove for accommodating the second elastic member 26. The pressure rod 24 can be driven by other equipment. When the pressure rod 24 pushes the second positioning member 23 to move in the direction close to the second elastic member 26, the third contact surface 231 and the fourth contact surface 251 abut, and the second positioning member 23 can move in the direction close to the positioning space 21, and is used to abut against the workpiece to be processed 6. The first positioning member 22 and the second positioning member 23 cooperate to achieve the limitation of the workpiece to be processed 6.

[0086] The above describes in detail the structure, features and effects of the present application based on the embodiments shown in the drawings. The above are only preferred embodiments of the present application, but the scope of implementation of the present application is not limited to what is shown in the drawings. Any changes made in accordance with the concept of the present application, or modifications to equivalent embodiments with equivalent changes, which do not exceed the spirit covered by the description and drawings, should be within the scope of protection of the present application.

Claims

1. A stress relief device, characterized in that: The stress relief device comprises: base; A positioning mechanism, the positioning mechanism being disposed on the base, the positioning mechanism being provided with a positioning space, the positioning space having an opening, the positioning space being used to accommodate a workpiece to be processed, and the opening being used to expose the workpiece to be processed disposed in the positioning space; and A striking assembly includes a driving member and a striking member, wherein the striking member is slidably arranged on the base, the striking member is arranged corresponding to the opening, the driving member is in transmission cooperation with the striking member, and the driving member can drive the striking member to move toward the opening so that the striking member strikes the workpiece to be processed to remove stress.

2. The stress relief device according to claim 1, characterized in that: The positioning space has a positioning groove portion and a bending groove portion that are connected to each other, the bending groove portion is bent relative to the positioning groove portion toward the striking member, and the opening is formed on a side of the bending groove portion away from the positioning groove portion; The width of at least part of the bending groove is greater than the width of the positioning groove, so that the bending portion of the workpiece to be processed accommodated in the positioning space forms a clearance fit with at least part of the bending groove.

3. The stress relief device according to claim 2, characterized in that: The bending groove portion includes a first inner wall and a second inner wall relative to each other, the first inner wall is located on the outside of the second inner wall, the first inner wall is an arc-shaped wall surface for supporting the outer wall surface of the arc-shaped segment of the workpiece to be processed, and the second inner wall is provided with a gap avoidance portion, which is used to avoid the inner wall surface of the arc-shaped segment of the workpiece to be processed.

4. The stress relief device according to claim 1, characterized in that: There are two positioning mechanisms, which are arranged at a relative interval. The driving member can simultaneously drive the striking members of the two positioning mechanisms, and the two striking members can respectively hit the workpieces to be processed arranged in the two positioning spaces.

5. The stress relief device according to claim 4, characterized in that: The driving member has a first contact surface, and the striking member has a second contact surface. There is a preset angle between the first contact surface and the second contact surface. The first contact surface can abut against the second contact surface to enable the driving member to drive the striking member to move in a direction close to the opening.

6. The stress relief device according to claim 5, characterized in that: The stress relief device includes a cover plate, which is located on the top of the base. The cover plate can move along the height direction of the stress relief device, the cover plate can abut against the workpiece to be processed, and the cover plate has an avoidance hole, and the driving member passes through the avoidance hole.

7. The stress relief device according to claim 1, characterized in that: The striking member includes a sliding block, a first striking block and a second striking block. The sliding block is slidably arranged on the base. The first striking block and the second striking block are connected to the same side of the sliding block. The first striking block is elastically arranged on the sliding block. When in a natural state, the first striking block protrudes from the surface of the sliding block relative to the second striking block.

8. The stress relief device according to claim 7, characterized in that: The protruding dimension of the first striking block along the edge close to the positioning mechanism is L1, and the protruding dimension of the second striking block along the edge close to the positioning mechanism is L2, and L1 and L2 satisfy the relationship: 0.05mm≤L1-L2≤0.15mm.

9. The stress relief device according to claim 7, characterized in that: The areas of the striking end surfaces of the first striking block and the second striking block are inconsistent; and / or, The first striking block and the second striking block are spaced apart from each other.

10. The stress relief device according to any one of claims 1 to 9, characterized in that: The positioning mechanism includes a first positioning member and a second positioning member. The first positioning member and the second positioning member can be close to or far away from each other, and the positioning space is defined between the first positioning member and the second positioning member.

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