A clamping device
By designing the clamping device with the coordinating push and push parts, and the linkage between the driving and resetting parts, the problem of manual clamping multiple times in the processing of thin plate products is solved, realizing rapid clamping and release, improving processing efficiency and reducing labor intensity, and is suitable for multi-stage processing.
Patent Information
- Application Number
- CN202521779294.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-20
AI Technical Summary
In the current technology, the processing of thin plate products requires manual clamping at different angles multiple times, resulting in low processing efficiency and high labor intensity, making it difficult to achieve automated processing in multiple stages.
A clamping device was designed. Through the cooperation of the pushing part and the forced pushing part, the driving part drives the clamping part to approach the product, and the elastic force of the reset part realizes the rapid clamping and release of the product. Combined with the guide groove and guide bearing, the stable movement of the clamping part is ensured.
It enables rapid clamping and release of thin plate products, improves processing efficiency, reduces the labor intensity of manual operation, and adapts to the needs of multi-stage processing.
Smart Images

Figure CN224674684U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping equipment technology, and in particular to a clamping device. Background Technology
[0002] Currently, when processing thin sheet products, tools such as vises are usually used to clamp the products before processing. When the product needs to be processed in multiple stages, it is necessary to manually clamp it at different angles, which requires a large number of workers and can only achieve single-angle processing of a single product, resulting in low processing efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a clamping device that enables rapid clamping of products, thereby improving processing efficiency and reducing labor intensity.
[0004] This utility model provides a clamping device, including: A positioning platform, used to fix the product; The clamping member includes a pair of clamping members located on opposite sides of the product. The clamping members are used to clamp or release the product. The clamping members can move closer to or away from the product along a first direction. Each clamping member is provided with a pushing part. A driving member is movable along a second direction. The driving member is provided with a pair of forced pushing parts, and the pair of forced pushing parts are correspondingly arranged with the pair of forced pushing parts. When the driving member moves along the second direction, the forced pushing parts abut against the forced pushing parts, so that the clamping member moves along the first direction to approach the product and clamp the product. The first direction is orthogonal to the second direction. A reset member is located between a pair of clamping members and is elastically connected to the pair of clamping members to provide an elastic force to the pair of clamping members, causing the clamping members to move away from the product to release the product.
[0005] In the clamping device described above, preferably, the pushing part and / or the forced pushing part is provided with a pushing ramp, and the clamping member can move along the pushing ramp.
[0006] In the clamping device described above, preferably, the reset member includes a fixing part and two elastic parts. The fixing part is disposed between a pair of clamping members, and the two elastic parts are located on both sides of the fixing part. One end of each elastic part is connected to the corresponding clamping member, and the other end of each elastic part is connected to the fixing part. The elastic part is used to apply an elastic force to the clamping member, causing the clamping member to move away from the product to release the product.
[0007] In the clamping device described above, preferably, the clamping device further includes a support platform, the clamping member and the resetting member are both disposed on the support platform, the driving member includes a driving cylinder and two driving blocks, the driving cylinder is disposed on the side of the support platform opposite to the resetting member, the two driving blocks are connected to the piston rod end of the driving cylinder, the two driving blocks are disposed on both sides of the support platform, and the two driving blocks are disposed opposite to the two clamping members.
[0008] In the clamping device described above, preferably, the side of the support platform is provided with a first guide groove, and the drive block can move along the first guide groove.
[0009] In the clamping device described above, preferably, the support platform is provided with a guide portion, and the clamping member includes a guide engagement portion, which can form a guide engagement with the guide portion.
[0010] In the clamping device described above, preferably, the guide portion is a support block provided on the support platform, the guide mating portion is a sliding groove provided on the clamping member, and the clamping member can move relative to the support block through the sliding groove.
[0011] In the clamping device described above, preferably, the support block is provided with a second guide groove, the second guide groove is provided with a guide bearing and a rotating shaft, the opposite sidewall of the slide groove is provided with an assembly hole, the rotating shaft passes through the guide bearing, and the two ends of the rotating shaft are respectively installed in the two assembly holes.
[0012] In the clamping device described above, preferably, the positioning platform is provided with a limiting groove, the clamping member extends into the limiting groove, and can move within the limiting groove.
[0013] In the clamping device described above, preferably, the clamping member has a pressure block that passes through the limiting groove and is located on the side of the positioning platform opposite to the reset member.
[0014] Compared with the prior art, the clamping device of this utility model achieves the driving component to drive the clamping component to move towards the product in order to clamp the product through the cooperation of the pushing component and the forced pushing component. The resetting component applies an elastic force to the product, so that the clamping component is reset to release the product, thereby realizing the rapid clamping and release of the product, accelerating the multi-stage processing operation of the product, which is conducive to improving processing efficiency and reducing the labor intensity of manual operation. Attached Figure Description
[0015] Figure 1 This is a perspective view of the clamping device provided in an embodiment of the present invention; Figure 2 This is a front view of the clamping device provided in an embodiment of this utility model; Figure 3 This is a top view of the clamping device provided in an embodiment of the present invention; Figure 4 yes Figure 3 Cross-sectional view along the AA direction; Figure 5 This is a perspective view of the clamping member provided in an embodiment of this utility model; Figure 6 This is a perspective view of the driving component provided in an embodiment of this utility model; Figure 7 This is a perspective view of the support platform provided in an embodiment of this utility model; Figure 8 This is a perspective view of the positioning platform provided in an embodiment of this utility model.
[0016] Explanation of reference numerals in the attached figures: 100-product; 10-Positioning platform, 11-Limiting groove, 12-Positioning block; 20-Clamping component, 21-Guide mating part, 211-Slide groove, 2111-Assembly hole, 22-Pressure block; 30-Drive component, 31-Drive cylinder, 32-Drive block; 41-Forced pushing section, 42-Forced pushing section, 43-Forced pushing inclined surface; 50 - Reset part, 51 - Fixing part, 52 - Elastic part; 60-Support platform, 61-First guide groove, 62-Guide part, 621-Support block, 6211-Second guide groove, 6212-Guide bearing, 6213-Rotating shaft, 63-First support column; 70 - Support plate, 71 - Second support column; D1 - First direction, D2 - Second direction. Detailed Implementation
[0017] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0018] Reference Figure 1 and Figure 2 As shown, this utility model provides a clamping device, including a positioning platform 10, a pair of clamping members 20, a driving member 30, and a resetting member 50, wherein: The positioning platform 10 is used to fix the product 100. After the product 100 is placed on the positioning platform 10, it is fixed to the positioning platform 10 by the action of the driving component 30 and the clamping component 20 to ensure that the product 100 maintains a stable and accurate position during processing or operation.
[0019] A pair of clamping members 20 are located on opposite sides of the product 100 for clamping or releasing the product 100. The pair of clamping members 20 can move closer to or away from the product 100 along a first direction D1. In this application, the first direction D1 is the direction in which a clamping member 20 moves closer to the product 100. The product 100 is fixed to the positioning platform 10, and the first direction D1 is also the extension direction of the horizontal plane where the positioning platform 10 is located. Each clamping member 20 is provided with a pushing part 41. Before the product 100 is processed, the pair of clamping members 20 clamp the product 100 to fix its position. After the product 100 is processed, the pair of clamping members 20 release the product 100 to facilitate the transfer of the processed product 100.
[0020] The driving member 30 can move along the second direction D2. The second direction D2 of this application is orthogonal to the first direction D1 and parallel to the direction of gravity. The driving member 30 is provided with a pair of forced pushing parts 42, which are correspondingly arranged with the forced pushing parts 41 of the pair of clamping members 20. When the driving member 30 moves along the second direction D2, the pair of forced pushing parts 42 abut against the pair of forced pushing parts 41. The pair of forced pushing parts 42 move synchronously with the driving member 30 along the second direction D2. During the movement, the pair of forced pushing parts 42 exert a downward force on the pair of forced pushing parts 41. This force can be decomposed into a horizontal component (i.e., the first direction D1). This component can drive the pair of clamping members 20 to move closer to the product until the product 100 is clamped.
[0021] The reset member 50 is located between a pair of clamping members 20 and is elastically connected to the pair of clamping members 20. During the process of the drive member 30 driving the pair of clamping members 20 to move, the reset member 50 can accumulate elastic force. When the product 100 has completed processing and needs to be transferred from the positioning platform 10, the force applied to the pair of clamping members 20 by the drive member 30 is first canceled. The reset member 50 then applies the accumulated elastic force to the pair of clamping members 20, causing the pair of clamping members 20 to move away from the product 100, thereby releasing the product 100. The pair of clamping members 20 return to their initial position before clamping the product 100.
[0022] In the embodiments provided in this application, when the driving member 30 moves downward (i.e., in the second direction D2), the forced pushing part 42 moves downward synchronously with the driving member 30. The forced pushing part 42 abuts against the forced pushing part 41, and then the forced pushing part 42 will give the clamping member 20 a downward force during the downward movement. This force can be decomposed into a horizontal component (i.e., in the first direction D1). This component causes the clamping member 20 to move towards the product 100. A pair of clamping members 20 move towards the product 100 at the same time until the product 100 is clamped.
[0023] In one feasible implementation, refer to Figure 5 and Figure 6 As shown, the pushing part 41 and / or the forced pushing part 42 are provided with a pushing ramp 43, and the clamping member 20 can slide along the pushing ramp 43. When the driving member 30 moves downward, the clamping member 20 moves along the pushing ramp 43, and the forced pushing part 42 applies a downward force to the clamping member 20 through the pushing ramp 43. This force can be decomposed into a component force pointing in the direction of the product 100. This component force can drive the clamping member 20 to move towards the product 100. Under the action of the driving member 30, the two clamping members 20 simultaneously move towards the product 100 until the product 100 is clamped, thereby fixing the product 100 to the positioning platform 10.
[0024] Specifically, both the pushing part 41 and the forced pushing part 42 have a pushing ramp 43. When the driving member 30 is started, the pushing ramp 43 of the pushing part 41 abuts against the pushing ramp 43 of the forced pushing part 42. During the downward movement of the driving member 30, the clamping member 20 moves along the pushing ramp 43 towards the product until the product 100 is clamped.
[0025] Reference Figure 2 and Figure 4 As shown, the reset member 50 includes a fixing part 51 and two elastic parts 52. The fixing part 51 is disposed between a pair of clamping members 20, and the two elastic parts 52 are located on both sides of the fixing part 51. One end of each elastic part 52 is connected to the corresponding clamping member 20, and the other end of each elastic part 52 is connected to the fixing part 51. During the process of the driving member 30 driving the clamping member 20 to move closer to the product 100, the elastic part 52 is compressed by the force of the clamping member 20 and undergoes elastic deformation to accumulate elastic force. This elastic force is then applied to the clamping member 20, causing the clamping member 20 to tend to move away from the product 100. When the force of the driving member 30 is removed, the elastic force drives the clamping member 20 to move away from the product 100, thereby releasing the product 100.
[0026] It is feasible to use an elastic part 52 as a spring, with the opposite ends of the spring connected to the fixing part 51 and the clamping member 20 respectively. When the clamping member 20 moves along the first direction D1, it compresses the spring, causing the spring to undergo elastic deformation and accumulate elastic force. The elastic force is then applied to the clamping member 20, causing the clamping member 20 to have a tendency to move away from the product. When the force of the driving member 30 is removed, the elastic force drives the clamping member 20 away from the product, releasing the product.
[0027] In other embodiments, the elastic part 52 may be other structures or components capable of applying elastic force to the clamping member 20, and there is no limitation on this.
[0028] To ensure the stability of the clamping member 20 in clamping the product 100 and in releasing the product 100, the embodiments provided in this application refer to... Figure 1 and Figure 4 As shown, the clamping device also includes a support platform 60, a pair of clamping members 20 and a resetting member 50 are both disposed between the support platform 60 and the positioning platform 10. The end of the pair of clamping members 20 away from the support platform 60 passes through the positioning platform 10 and can move closer to or away from the product 100 relative to the positioning platform 10 along the first direction D1. The resetting member 50 is connected to the support platform 60. The driving member 30 includes a driving cylinder 31 and a driving block 32. The driving cylinder 31 is disposed on the side of the support platform 60 away from the resetting member 50. The driving block 32 is connected to the end of the piston rod of the driving cylinder 31. The driving block 32 is disposed on the side of the support platform 60 and is correspondingly disposed with the clamping member 20.
[0029] Specifically, refer to Figure 1 and Figure 2 As shown, to improve the stability of the connection between the support platform 60 and the positioning platform 10, a plurality of first support columns 63 are provided between the support platform 60 and the positioning platform 10. The clamping device also includes a support plate 70, and a drive cylinder 31 is disposed on the support plate 70 and located between the support plate 70 and the support platform 60. The support plate 70 and the support platform 60 are connected by a plurality of second support columns 71. Through the action of the first support columns 63 and the second support columns 71, the stability of the overall structure of the clamping device is improved, so that the process of the drive component 30 driving the clamping component 20 to move and clamp the product 100 can be carried out smoothly, so as to ensure the effect of subsequent processing of the product 100.
[0030] Reference Figure 4As shown, the forced pushing part 42 is provided on the driving block 32. The driving block 32 is located on the side of the support platform 60 and is correspondingly arranged with the clamping member 20, so that it can cooperate with the forced pushing part 41 on the corresponding clamping member 20 to realize the movement of the clamping member 20. Since there are two clamping members 20, two driving blocks 32 are connected to the end of the piston rod of the driving cylinder 31. The two driving blocks 32 are respectively provided on opposite sides of the support platform 60 and are respectively corresponding to the clamping member 20 on the same side.
[0031] To prevent the contact between the drive block 32 and the clamping member 20 from shifting due to shaking or other reasons during the downward movement of the drive block 32, thus causing instability in the force exerted by the drive block 32 on the clamping member 20 and affecting the clamping effect of the clamping member 20 on the product 100, the embodiments provided in this application refer to... Figure 1 and Figure 7 As shown, the support platform 60 has a first guide groove 61 on its side, and the drive block 32 can move along the first guide groove 61. The first guide groove 61 is a groove formed by the inward indentation of the side of the support platform 60. The drive block 32 is housed in the groove, and the outer peripheral surface of the drive block 32 abuts against the inner wall surface of the first guide groove 61. The indentation direction of the groove is perpendicular to the moving direction of the drive block 32. Therefore, when the drive block 32 moves downward, the outer peripheral surface of the drive block 32 slides tightly against the inner wall surface of the first guide groove 61, thereby ensuring the stability of the downward movement of the drive block 32.
[0032] Furthermore, the smoothness of movement of the clamping member 20 is equally important for the clamping effect of the product 100; therefore, referring to... Figure 7 As shown, the support platform 60 is equipped with a guide section 62, referring to... Figure 5 As shown, the clamping member 20 includes a guide engagement portion 21, which can form a guide engagement with the guide portion 62. When the driving block 32 moves downward along the first guide groove 61, it applies a force to the clamping member 20, driving the clamping member 20 to move. The guide portion 62 and the guide engagement portion 21 can then form a guide engagement, and the clamping member 20 moves stably towards the product 100 under the action of the guide portion 62 and the guide engagement portion 21.
[0033] In one feasible implementation, refer to Figure 5 and Figure 7 As shown, the guide portion 62 is a support block 621 provided on the support platform 60, and the guide mating portion 21 is a sliding groove 211 provided on the clamping member 20. The clamping member 20 can slide relative to the support block 621 through the sliding groove 211. The support block 621 is fixed to the support platform 60. When the clamping member 20 moves towards the product 100, it can slide relative to the support block 621 through the sliding groove 211, so that the clamping member 20 moves in a fixed direction, thereby ensuring that the movement direction of the clamping member 20 is stable and fixed.
[0034] To further improve the smoothness of the movement of the clamping member 20, refer to Figure 4 , Figure 5 and Figure 7 As shown, the support block 621 is provided with a second guide groove 6211, and a guide bearing 6212 and a rotating shaft 6213 are provided in the second guide groove 6211. The side wall opposite the slide groove 211 is provided with an assembly hole 2111. The rotating shaft 6213 passes through the guide bearing 6212, and the two ends of the rotating shaft 6213 are respectively installed in the two assembly holes 2111. When the clamping member 20 moves along the first direction D1, the guide bearing 6212 moves in the second guide groove 6211, thereby causing the clamping member 20 to move relative to the support block 621 through the slide groove 211. The slide groove 211 and the support block 621 are slidably connected through the guide bearing 6212 and the rotating shaft 6213, which improves the connection stability between the guide part 62 and the guide mating part 21, so that the clamping member 20 can move more smoothly.
[0035] Continue to refer to Figure 4 and Figure 5 As shown, the second guide groove 6211 is provided with two guide bearings 6212 and two rotating shafts 6213. Each rotating shaft 6213 passes through one guide bearing 6212. The inner wall of the slide groove 211 is provided with two pairs of mounting holes 2111, each pair of mounting holes 2111 corresponding to one rotating shaft 6213. When the clamping member 20 moves, the two guide bearings 6212 move simultaneously within the second guide groove 6211, further improving the stability of the movement of the clamping member 20.
[0036] Furthermore, under the combined action of the first guide groove 61, the guide part 62 and the guide mating part 21, both the drive block 32 and the clamping member 20 can move stably, and the clamping member 20 can achieve the same clamping effect for each product 100, thereby improving the consistency of the subsequent processing effect for each product 100.
[0037] To improve the efficiency of clamping and releasing product 100, refer to Figure 1 , Figure 3 and Figure 8 As shown, the positioning platform 10 is provided with two limiting grooves 11. The clamping member 20 extends into the corresponding limiting groove 11 and can move within the limiting groove 11. The limiting groove 11 extends through the positioning platform 10, and the clamping member 20 can extend from below the positioning platform 10 into the limiting groove 11. Under the action of the driving member 30, the clamping member 20 moves closer to the product 100, and under the action of the elastic part 52, moves away from the product 100. The movement processes of moving closer to the product 100 and moving away from the product 100 are both realized within the limited space of the limiting groove 11.
[0038] When the clamping member 20 moves towards the product 100 and abuts against the inner wall of the limiting groove 11, it reaches the limit position for clamping the product 100. If it continues to move, it will over-clamp the product 100 and damage it. When the elastic part 52 drives the clamping member 20 away from the product 100, the clamping member 20 retracts within the limiting groove 11. When the clamping member 20 retracts to abut against the inner wall surface of the limiting groove 11, it indicates that it has reached the position where the product 100 can be completely released.
[0039] The limiting groove 11 allows the clamping member 20 to move within a limited space to clamp and release the product 100. In other words, the clamping member 20 can meet the clamping and release positions required for processing the product 100 with a short stroke, which helps to improve clamping efficiency.
[0040] Specifically, please refer to Figure 1 , Figure 4 and Figure 5 The clamping member 20 has a pressure block 22, which passes through the limiting groove 11 and is located on the side of the positioning platform 10 opposite to the reset member 50. When the clamping member 20 moves to clamp the product 100, the pressure block 22 presses against the product 100, thereby pressing the product 100 against the positioning platform 10 and making the product 100 more stably fixed to the positioning platform 10.
[0041] In the embodiments provided in this application, the product 100 needs to be pre-positioned before being clamped by the clamping member 20, so that each product 100 remains in the same position before being clamped and fixed, thereby ensuring that the clamping effect of the clamping member 20 on all products 100 is consistent. (Refer to...) Figure 1 and Figure 8 As shown, the positioning platform 10 is provided with positioning blocks 12, which are used to fix the position of the product 100. There are multiple positioning blocks 12, which together form the position for installing the product 100. When the product 100 is placed on the positioning platform 10, and the edge of the product 100 abuts against each positioning block 12, it indicates that the product 100 is installed in the correct position. After being clamped and fixed by the clamping member 20, subsequent processing operations are performed.
[0042] Based on the above embodiments, the specific working process of the clamping device of this application is as follows: First, place the product 100 on the positioning platform 10 so that the product 100 abuts against multiple positioning blocks 12 to pre-position the product 100.
[0043] Next, the drive cylinder 31 is activated, causing the two drive blocks 32 to move downwards simultaneously. The pushing slope 43 of the pushing part 41 abuts against the pushing slope 43 of the pushing part 42. As the two drive blocks 32 continue to move downwards, the two drive blocks 32 apply a downward force to the corresponding clamping members 20. This force can be decomposed into a horizontal component (i.e., the first direction D1). This component causes the pair of clamping members 20 to move along the pushing slope 43 toward the product 100. The pair of clamping members 20 move toward the product 100 simultaneously until the product 100 is clamped. During the movement of a pair of clamping members 20 toward the product 100, both elastic parts 52 are compressed by the force of the corresponding clamping members 20, undergo elastic deformation, accumulate elastic force, and apply the elastic force to the clamping members 20, so that the clamping members 20 have a tendency to move away from the product 100.
[0044] After the product 100 is processed, the drive cylinder 31 drives the two drive blocks 32 to move upward, releasing the state of abutment between the push part 41 and the push part 42, thereby releasing the force of the drive block 32 on the corresponding clamping member 20. At this time, the clamping member 20 moves away from the product 100 under the drive of the elastic force of the elastic part 52, thereby releasing the product 100.
[0045] After product 100 is released, its position can be changed, or a new product 100 to be processed can be replaced, and the above steps can be repeated to achieve continuous processing of product 100.
[0046] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.
Claims
1. A clamping device, characterized in that, include: A positioning platform, used to fix the product; The clamping member includes a pair of clamping members located on opposite sides of the product. The clamping members are used to clamp or release the product. The clamping members can move closer to or away from the product along a first direction. Each clamping member is provided with a pushing part. A driving member is movable along a second direction. The driving member is provided with a pair of forced pushing parts, and the pair of forced pushing parts are correspondingly arranged with the pair of forced pushing parts. When the driving member moves along the second direction, the forced pushing parts abut against the forced pushing parts, so that the clamping member moves along the first direction to approach the product and clamp the product. The first direction is orthogonal to the second direction. A reset member is located between a pair of clamping members and is elastically connected to the pair of clamping members to provide an elastic force to the pair of clamping members, causing the clamping members to move away from the product to release the product.
2. The clamping device according to claim 1, characterized in that, The pushing part and / or the forced pushing part is provided with a pushing inclined surface, and the clamping member can move along the pushing inclined surface.
3. The clamping device according to claim 1, characterized in that, The reset member includes a fixing part and two elastic parts. The fixing part is disposed between a pair of clamping members. The two elastic parts are located on both sides of the fixing part. One end of each elastic part is connected to the corresponding clamping member, and the other end of each elastic part is connected to the fixing part. The elastic part is used to apply an elastic force to the clamping member, so that the clamping member moves away from the product to release the product.
4. The clamping device according to claim 3, characterized in that, The clamping device further includes a support platform. The clamping member and the resetting member are both disposed on the support platform. The driving member includes a driving cylinder and two driving blocks. The driving cylinder is disposed on the side of the support platform away from the resetting member. The two driving blocks are connected to the piston rod end of the driving cylinder. The two driving blocks are disposed on both sides of the support platform. The two driving blocks are correspondingly disposed with the two clamping members.
5. The clamping device according to claim 4, characterized in that, The support platform has a first guide groove on its side, and the drive block can move along the first guide groove.
6. The clamping device according to claim 4, characterized in that, The support platform is provided with a guide part, and the clamping member includes a guide mating part, which can form a guide mating with the guide part.
7. The clamping device according to claim 6, characterized in that, The guide portion is a support block provided on the support platform, and the guide mating portion is a sliding groove provided on the clamping member, and the clamping member can move relative to the support block through the sliding groove.
8. The clamping device according to claim 7, characterized in that, The support block is provided with a second guide groove, and a guide bearing and a rotating shaft are provided in the second guide groove. The side wall opposite to the slide groove is provided with an assembly hole. The rotating shaft passes through the guide bearing, and the two ends of the rotating shaft are respectively installed in the two assembly holes.
9. The clamping device according to claim 1, characterized in that, The positioning platform is provided with a limiting groove, and the clamping member extends into the limiting groove and can move within the limiting groove.
10. The clamping device according to claim 9, characterized in that, The clamping member has a pressure block, which passes through the limiting groove and is located on the side of the positioning platform opposite to the reset member.