Clamp

Abstract

The utility model provides a clamp which comprises a left clamping arm, a right clamping arm and an elastic element, and the left clamping arm and the right clamping arm form a clamping mouth. Accommodating grooves for accommodating elastic elements are formed in the sides, deviating from the clamping nozzle, of the left clamping arm and the right clamping arm; the containing groove comprises a groove bottom wall, a first groove side wall and a second groove side wall, wherein the first groove side wall and the second groove side wall are located on the two sides of the groove bottom wall. And the first groove side wall and the second groove side wall are configured in a manner that when the first groove side wall and the second groove side wall are placed on the horizontal plane, the projection of the gravity center of the clamp on the horizontal plane is located outside the accommodating groove. Compared with the prior art, due to the fact that the projection of the gravity center of the clamp on the horizontal plane is located outside the containing groove, the clamp cannot be erected on the platform, the clamping column of the clamp taking device can stretch into the operation groove conveniently, and work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a clamp, and more particularly to a clamp used in the metal surface treatment industry, such as for electroplating, electrophoresis, anodizing, polishing and other processes on aluminum profiles. Background Technology

[0002] An oxide clamp typically includes a left clamping arm, a right clamping arm, and a reset elastic element. The left and right clamping arms are provided with operating grooves that mate with a clamping device. The clamping device has a locking pin that mates with the operating grooves. When the locking pin is inserted into the operating groove, the oxide clamp can be opened by the clamping device. However, in existing oxide clamps, the sidewalls of the left and right clamping arms facing away from the clamping jaws are usually flat. This design makes it easy for the oxide clamp to stand upright on the platform, which is not conducive to the locking pin of the clamping device extending into the operating groove, thus reducing work efficiency.

[0003] In view of the above problems, it is necessary to provide a new fixture to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a clamp that is configured such that, when the first and second groove sidewalls are placed on a horizontal surface, the projection of the clamp's center of gravity onto the horizontal surface lies outside the receiving groove. This configuration makes it difficult to stand the clamp upright on a platform, thus facilitating the insertion of the clamping pin into the operating groove and improving work efficiency.

[0005] To achieve the above objectives, this utility model provides a clamp, including a left clamping arm, a right clamping arm, and an elastic element. The left and right clamping arms form a clamping mouth. A receiving groove for accommodating the elastic element is provided on the side of the left and right clamping arms away from the clamping mouth. The receiving groove includes a bottom wall and a first side wall and a second side wall located on both sides of the bottom wall. The first and second side walls are configured such that when the first and second side walls are placed on a horizontal surface, the projection of the center of gravity of the clamp on the horizontal surface is outside the receiving groove.

[0006] As a further improvement of this utility model, the first groove sidewall has a first outer surface opposite to the receiving groove, and the second groove sidewall has a second outer surface opposite to the receiving groove, with the area between the first outer surface and the second outer surface being a reference area; when the first groove sidewall and the second groove sidewall are placed on a horizontal plane, the projection of the center of gravity of the fixture on the horizontal plane is located outside the reference area.

[0007] As a further improvement of this utility model, the projection of the first groove sidewall onto the second groove sidewall is located within the second groove sidewall, or the projection of the second groove sidewall onto the first groove sidewall is located within the first groove sidewall.

[0008] As a further improvement of this utility model, the first groove sidewall has a first end surface away from the groove bottom wall; the cross-sectional curve of the first end surface along the thickness direction of the first groove sidewall is a convex arc.

[0009] As a further improvement of this utility model, the first groove sidewall has a first end surface away from the groove bottom wall; the cross-sectional curve of the first end surface along the length direction of the first groove sidewall is a convex arc.

[0010] As a further improvement of this utility model, the second groove sidewall has a second end surface away from the bottom wall of the groove; the cross-sectional curve of the second end surface along the thickness direction of the second groove sidewall is a convex arc.

[0011] As a further improvement of this utility model, the second groove sidewall has a second end surface away from the groove bottom wall; the cross-sectional curve of the second end surface along the length direction of the second groove sidewall is a convex arc.

[0012] As a further improvement of this utility model, the left clamping arm and the right clamping arm each include a main body, a pivot part located on one side of the main body, and a clamping part located on the other side of the main body; the receiving groove is at least partially located in the main body.

[0013] As a further improvement of this utility model, the pivot portion includes a first pivot wall and a second pivot wall disposed opposite to the first pivot wall; the outer contour of at least one of the first pivot wall and the second pivot wall is a convex arc.

[0014] As a further improvement of this utility model, a receiving groove is formed between the first pivot wall and the second pivot wall; the elastic element is partially housed in the receiving groove.

[0015] As a further improvement of this utility model, at least one of the left clamping arm and the right clamping arm is provided with a drain hole.

[0016] As a further improvement of this utility model, the left clamping arm and the right clamping arm each include a main body, a pivot part located on one side of the main body, and a clamping part located on the other side of the main body, and the drain hole is provided on the main body.

[0017] As a further improvement of this utility model, the drain hole includes a first drain hole; the first drain hole is connected to the receiving groove in the thickness direction of the main body.

[0018] As a further improvement of this utility model, the first drain hole is disposed on the side wall of the first tank or the side wall of the second tank and penetrates through the side wall of the first tank or the side wall of the second tank.

[0019] As a further improvement of this utility model, the main body is provided with a supporting arm; the supporting arm of the left clamping arm cooperates with the supporting arm of the right clamping arm to limit the minimum opening angle of the clamp; wherein, the drain hole includes a second drain hole, and at least one of the supporting arm of the left clamping arm and the supporting arm of the right clamping arm is provided with the second drain hole.

[0020] As a further improvement of this utility model, the main body is provided with a supporting arm; the supporting arm of the left clamping arm cooperates with the supporting arm of the right clamping arm to limit the minimum opening angle of the clamp; wherein, the drain hole includes a second drain hole, the supporting arm of the left clamping arm is provided with a left half groove, and the supporting arm of the right clamping arm is provided with a right half groove; the left half groove and the right half groove together constitute the second drain hole.

[0021] As a further improvement of this utility model, the main body is also provided with an operating groove; the second drain hole passes through the supporting arm of the left clamping arm or the supporting arm of the right clamping arm and is connected to the operating groove.

[0022] The beneficial effects of this invention are as follows: the clamp is constructed such that when the first and second groove sidewalls are placed on a horizontal surface, the projection of the clamp's center of gravity on the horizontal surface is outside the receiving groove. This configuration makes it difficult for the clamp to stand upright on the platform, thus facilitating the insertion of the clamping pin into the operating groove and improving work efficiency. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the fixture of this utility model.

[0024] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the second angle of the fixture shown.

[0025] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the fixture from the third angle.

[0026] Figure 4 yes Figure 1 A three-dimensional schematic diagram of the clamp when it is open.

[0027] Figure 5 yes Figure 1 A three-dimensional schematic diagram of the fixture after the elastic element has been removed.

[0028] Figure 6 yes Figure 1 Top view of the fixture shown. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Please see Figure 1 , Figure 2 as well as Figure 3 As shown, this utility model discloses a clamp 100, including a left clamping arm 10, a right clamping arm 20, and an elastic element 30. The left clamping arm 10 and the right clamping arm 20 form a clamping jaw 40. A receiving groove 50 for accommodating the elastic element 30 is provided on the side of the left clamping arm 10 and the right clamping arm 20 opposite to the clamping jaw 40. Please refer to [link / reference]. Figure 5 as well as Figure 1 , Figure 3 As shown, the receiving groove 50 includes a bottom wall 51 and a first side wall 52 and a second side wall 53 located on both sides of the bottom wall 51. The first side wall 52 and the second side wall 53 are configured such that when placed on a horizontal surface, the projection of the center of gravity of the clamp 100 onto the horizontal surface lies outside the receiving groove 50. This configuration prevents the clamp 100 from standing upright on the platform, facilitating the interaction between the clamping device and the clamp 100, especially the pneumatic clamping device, thereby improving work efficiency.

[0031] Preferably, the first groove sidewall 52 has a first outer surface 521 facing away from the receiving groove 50, and the second groove sidewall 53 has a second outer surface 531 facing away from the receiving groove 50. The area between the first outer surface 521 and the second outer surface 531 is a reference area. When the first groove sidewall 52 and the second groove sidewall 53 are placed on a horizontal plane, the projection of the center of gravity of the clamp 100 onto the horizontal plane is outside the reference area. This arrangement further ensures that the clamp 100 cannot be erected on the platform, thereby facilitating the engagement of the clamping device with the clamp 100, especially facilitating the engagement of the pneumatic clamping device with the clamp 100, thus improving work efficiency.

[0032] Specifically, please refer to Figure 6 As shown, the projection of the first groove sidewall 52 onto the second groove sidewall 53 is located within the second groove sidewall 53. Of course, it is understood that in other embodiments, it can also be configured such that the projection of the second groove sidewall 53 onto the first groove sidewall 52 is located within the first groove sidewall 52.

[0033] Preferably, please refer to Figure 5As shown, the first groove sidewall 52 has a first end surface 522 away from the groove bottom wall 51. The cross-sectional curve of the first end surface 522 along the thickness direction HH of the first groove sidewall 52 is a convex arc. With this configuration, when the first groove sidewall 52 is placed on a horizontal surface, the contact between the first groove sidewall 52 and the horizontal surface in the thickness direction HH is a point contact or approximately a point contact, thereby ensuring that the clamp 100 cannot be erected on the platform.

[0034] Preferably, the cross-sectional curve of the first end surface 522 along the length direction LL of the first groove sidewall 52 is a convex arc. With this configuration, when the first groove sidewall 52 is placed on a horizontal surface, the contact between the first groove sidewall 52 and the horizontal surface in the length direction LL is a point contact or approximately a point contact, thereby further ensuring that the clamp 100 cannot be erected on the platform.

[0035] Preferably, please refer to Figure 5 As shown, the second groove sidewall 53 has a second end surface 532 away from the groove bottom wall 51. The cross-sectional curve of the second end surface 532 along the thickness direction HH of the second groove sidewall 53 is a convex arc. With this configuration, when the second groove sidewall 53 is placed on a horizontal surface, the contact between the second groove sidewall 53 and the horizontal surface in the thickness direction HH is a point contact or approximately a point contact, thereby ensuring that the clamp 100 cannot be erected on the platform.

[0036] Preferably, the cross-sectional curve of the second end surface 532 along the length direction LL of the second groove sidewall 53 is a convex arc. With this configuration, when the second groove sidewall 53 is placed on a horizontal surface, the contact between the second groove sidewall 53 and the horizontal surface in the length direction LL is a point contact or approximately a point contact, thereby further ensuring that the clamp 100 cannot be erected on the platform.

[0037] Preferably, please refer to Figure 1 as well as Figure 2 As shown, both the left clamping arm 10 and the right clamping arm 20 include a main body 61, a pivot portion 62 located on one side of the main body 61, and a clamping portion 63 located on the other side of the main body 61. The left clamping arm 10 is pivotally mounted on the right clamping arm 20 via a pivot 70. The receiving groove 50 is at least partially located in the main body 61. Further, please refer to... Figure 5As shown, the pivot portion 62 includes a first pivot wall 621 and a second pivot wall 622 disposed opposite to the first pivot wall 621. The outer contour of at least one of the first pivot wall 621 and the second pivot wall 622 is a convex arc. This arrangement ensures that the pivot portion 62 makes point contact or near-point contact with the horizontal surface, thereby further ensuring that the clamp 100 cannot be erected on the platform. A receiving groove 623 is formed between the first pivot wall 621 and the second pivot wall 622. The elastic element 30 is partially received within the receiving groove 623. In this embodiment, the elastic element 30 is a torsion spring. The main body of the torsion spring is received within the receiving groove 623, and the pivot 70 passes through the main body of the torsion spring. The elastic arm of the torsion spring is received within the receiving groove 50. When the clamp 100 is opened by external force, the elastic element 30 undergoes elastic deformation under the action of the main body 61. When the external force is removed, the clamp 100 resets under the action of the elastic element.

[0038] Of course, it is understood that in other embodiments, the pivot portion 62 may not be provided for the left clamping arm 10 and the right clamping arm 20. In this case, the elastic arm of the elastic element 30 is received in the receiving groove 50 and fixed in the receiving groove 50. For example, the elastic arm of the elastic element 30 is fixed in the receiving groove 50 by screws, or the elastic arm portion of the elastic element 30 is embedded in the left clamping arm 10 and the right clamping arm 20 by integral injection molding.

[0039] Preferably, at least one of the left clamping arm 10 and the right clamping arm 20 is provided with a drain hole to facilitate the discharge of the metal surface treatment liquid from the groove of the clamp 100. Simultaneously, any metal surface treatment liquid remaining in the groove of the clamp 100 can be easily rinsed away, thereby effectively reducing the corrosion of the clamp 100 by the metal surface treatment liquid, extending the service life of the clamp 100, saving production costs, and protecting the environment.

[0040] Preferably, the drain hole is provided on the main body 61. This arrangement can effectively drain and clean the metal surface treatment liquid located on the main body 61.

[0041] Preferably, please refer to Figure 2 , Figure 3 as well as Figure 5 As shown, the drain hole includes a first drain hole 601. The first drain hole 601 communicates with the receiving tank 50 in the thickness direction HH of the main body 61. This arrangement allows for easy drainage of the metal surface treatment liquid stored in the receiving tank 50, and also facilitates rinsing away the metal surface treatment liquid located in the receiving tank 50.

[0042] Furthermore, the first drain hole 601 is disposed on the first tank sidewall 52 or the second tank sidewall 53, and penetrates the first tank sidewall 52 or the second tank sidewall 53 to communicate with the receiving tank 50. Preferably, both the first tank sidewall 52 and the second tank sidewall 53 are provided with the first drain hole 601, and the projections of the first drain hole 601 on the first tank sidewall 52 and the first drain hole 601 on the second tank sidewall 53 on a plane perpendicular to the thickness direction HH of the tank sidewall at least partially overlap. This arrangement facilitates the rapid discharge of the metal surface treatment liquid contained in the receiving tank 50. At the same time, this arrangement also makes it easier to rinse away the metal surface treatment liquid in the receiving tank 50.

[0043] Preferably, please refer to Figure 2 , Figure 3 as well as Figure 4 As shown, the main body 61 is provided with a supporting arm 611. The supporting arm 611 of the left clamping arm 10 cooperates with the supporting arm 611 of the right clamping arm 20 to limit the minimum opening angle of the clamp 100. The drain hole also includes a second drain hole 602. At least one of the supporting arms 611 of the left clamping arm 10 and the supporting arm 611 of the right clamping arm 20 is provided with the second drain hole 602. This arrangement facilitates the rapid discharge of the metal surface treatment liquid from the clamp 100 in the length direction LL, and also makes it easy to rinse away the metal surface treatment liquid.

[0044] Preferably, please refer to Figure 4 As shown, the left clamping arm 10 has a left half-groove 6111 on its supporting arm 611, and the right clamping arm 20 has a right half-groove 6112 on its supporting arm 611. The left half-groove 6111 and the right half-groove 6112 together form the second drain hole 602. At this time, the second drain hole 602 is located in the middle of the supporting arms 611 of the left clamping arm 10 and the supporting arms 611 of the right clamping arm 20, so that the metal surface treatment liquid can be discharged quickly.

[0045] Further, please refer to Figure 2 , Figure 3 as well as Figure 4 As shown, the main body 61 is also provided with an operating groove 612. The operating groove 612 is used to cooperate with a clamping device to open the clamp 100. The clamping device can be a manual clamping device or a pneumatic clamping device. The second drain hole 602 passes through the supporting arm 611 of the left clamping arm 10 or the supporting arm 611 of the right clamping arm 20 and is connected to the operating groove 610. This arrangement allows for the rapid discharge of the metal surface treatment liquid located in the operating groove 612. At the same time, it also makes it easy to rinse away any residual metal surface treatment liquid in the operating groove 612.

[0046] Further, please refer to Figure 1 as well as Figure 2 As shown, the clamping portions 63 of the left clamping arm 10 and the right clamping arm 20 together constitute the clamping nozzle 40. The second drain hole 602 is connected to the clamping nozzle 40. This arrangement allows the metal surface treatment liquid stored in the operating tank 612 to be quickly discharged through the clamping nozzle 40.

[0047] In summary, because the center of gravity of the clamp 100 of this utility model is projected onto the horizontal plane outside the receiving groove 50, the clamp 100 cannot be erected on the platform, which facilitates the insertion of the clamping pin into the operating groove 612, thereby improving work efficiency.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. A clamp, characterized in that, The device includes a left clamping arm, a right clamping arm, and an elastic element. The left and right clamping arms form a clamping jaw. The left and right clamping arms have a receiving groove for accommodating the elastic element on the side opposite to the clamping jaw. The receiving groove includes a bottom wall and a first side wall and a second side wall located on both sides of the bottom wall. The first and second side walls are configured such that when the first and second side walls are placed on a horizontal surface, the projection of the center of gravity of the fixture on the horizontal surface is outside the receiving groove.

2. The clamp as described in claim 1, characterized in that: The first groove sidewall has a first outer surface facing away from the receiving groove, and the second groove sidewall has a second outer surface facing away from the receiving groove, with a reference area between the first outer surface and the second outer surface; When the first groove sidewall and the second groove sidewall are placed on a horizontal surface, the projection of the center of gravity of the fixture on the horizontal surface is outside the reference area.

3. The clamp as described in claim 1, characterized in that: The projection of the first groove sidewall onto the second groove sidewall is located within the second groove sidewall, or the projection of the second groove sidewall onto the first groove sidewall is located within the first groove sidewall.

4. The clamp as described in claim 1, characterized in that: The first groove sidewall has a first end surface away from the groove bottom wall; the cross-sectional curve of the first end surface along the thickness direction of the first groove sidewall is a convex arc.

5. The clamp as described in claim 1, characterized in that: The first groove sidewall has a first end surface away from the groove bottom wall; the cross-sectional curve of the first end surface along the length direction of the first groove sidewall is a convex arc.

6. The clamp as described in claim 1, characterized in that: The second groove sidewall has a second end surface away from the groove bottom wall; the cross-sectional curve of the second end surface along the thickness direction of the second groove sidewall is a convex arc.

7. The clamp as described in claim 1, characterized in that: The second groove sidewall has a second end surface away from the groove bottom wall; the cross-sectional curve of the second end surface along the length direction of the second groove sidewall is a convex arc.

8. The clamp as described in claim 1, characterized in that: The left and right clamping arms each include a main body, a pivot portion located on one side of the main body, and a clamping portion located on the other side of the main body; the receiving groove is at least partially located in the main body.

9. The clamp as described in claim 8, characterized in that: The pivot portion includes a first pivot wall and a second pivot wall disposed opposite to the first pivot wall; the outer contour of at least one of the first pivot wall and the second pivot wall is a convex arc.

10. The clamp as described in claim 9, characterized in that: A receiving groove is formed between the first pivot wall and the second pivot wall; the elastic element is partially housed in the receiving groove.

11. The clamp as described in claim 1, characterized in that: At least one of the left and right clamping arms is provided with a drain hole.

12. The clamp as described in claim 11, characterized in that: The left and right clamping arms each include a main body, a pivot part located on one side of the main body, and a clamping part located on the other side of the main body, and the drain hole is provided on the main body.

13. The clamp as described in claim 12, characterized in that: The drain hole includes a first drain hole; the first drain hole is connected to the receiving groove in the thickness direction of the main body.

14. The clamp as described in claim 13, characterized in that: The first drain hole is located on the side wall of the first tank or the side wall of the second tank and penetrates through the side wall of the first tank or the side wall of the second tank.

15. The clamp as described in claim 12, characterized in that: The main body is provided with a supporting arm; the supporting arm of the left clamping arm cooperates with the supporting arm of the right clamping arm to limit the minimum opening angle of the clamp; wherein, the drain hole includes a second drain hole, and at least one of the supporting arms of the left clamping arm and the supporting arm of the right clamping arm is provided with the second drain hole.

16. The clamp as described in claim 12, characterized in that: The main body is provided with a supporting arm; the supporting arm of the left clamping arm cooperates with the supporting arm of the right clamping arm to limit the minimum opening angle of the clamp; wherein, the drain hole includes a second drain hole, the supporting arm of the left clamping arm is provided with a left half groove, and the supporting arm of the right clamping arm is provided with a right half groove; the left half groove and the right half groove together constitute the second drain hole.

17. The clamp as described in claim 15 or 16, characterized in that: The main body is also provided with an operating groove; the second drain hole passes through the supporting arm of the left clamping arm or the supporting arm of the right clamping arm and is connected to the operating groove.

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