Sheet metal stretching clamp and machining center machine tool

Abstract

The utility model provides a sheet metal stretching clamp and a machining center machine tool, the sheet metal stretching clamp comprises a fixed clamping table, a movable clamping table is arranged above the fixed clamping table in a sliding mode, one side of the fixed clamping table and one side of the movable clamping table are respectively provided with a clamping mechanism, and the clamping mechanisms are arranged on the fixed clamping table and the movable clamping table. The top of the movable clamping table and the bottom of the fixed clamping table are each fixedly provided with a connector. The clamping mechanism is provided with a frame plate erected on one side of the fixed clamping table and one side of the movable clamping table, a clamping plate is arranged on the side, close to the fixed clamping table and the movable clamping table, of the frame plate in a sliding mode, a threaded rod is connected to the middle of the frame plate in a threaded mode, and the end of the threaded rod is rotationally connected with one side of the clamping plate. The end part of the plate sample can be directly clamped and fixed, so that the operation convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate detection equipment, and in particular relates to a metal plate stretching fixture and a machining center machine tool. Background Art

[0002] Tensile testing is an important test method in material mechanics, which is used to evaluate the performance and mechanical properties of materials under tension. The sheet metal tensile test is a simple and repeatable experimental method and is the most basic test in metal material research.

[0003] Initially, the tensile specimen to be tested was connected to the tensile test equipment by a pin-type connection. However, during the tensile process, due to stress concentration at the pin hole, the specimen would produce additional deformation or direct tearing at that location, resulting in reduced accuracy or invalidation of the test results.

[0004] In the prior art, a Chinese utility model patent document with authorization announcement number CN207650011U discloses a high-temperature tensile clamp for metal sheets, which can clamp and fix the ends of the specimens by cooperating with a semicircular pressure block, without providing space for the pin holes at the ends of the specimens to deform, thereby improving the test accuracy; this clamp is suitable for specimens with pin holes at the ends. For plates without pin holes at the ends, it is necessary to open pin holes at the ends of the plates before conducting the test, which is relatively cumbersome.

[0005] Therefore, it is necessary to design a metal sheet stretching fixture and machining center machine tool that can directly clamp and fix the end of the sheet sample and improve the convenience of operation to solve the current technical problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the utility model provides a metal sheet stretching fixture and a machining center machine tool that can directly clamp and fix the end of a sheet sample, thereby improving the convenience of operation.

[0007] The technical solution of the utility model is: a metal sheet stretching clamp comprises a fixed clamping table, a movable clamping table is slidably arranged above the fixed clamping table, a clamping mechanism is arranged on one side of the fixed clamping table and the movable clamping table, a connecting head is fixedly arranged on the top of the movable clamping table and the bottom of the fixed clamping table; the clamping mechanism has a frame plate mounted on one side of the fixed clamping table and the movable clamping table, a clamping plate is slidably arranged on one side of the frame plate close to the fixed clamping table and the movable clamping table, a screw is threadedly connected in the center of the frame plate, and an end of the screw is rotatably connected to one side of the clamping plate.

[0008] Four guide rods are evenly arranged between the movable clamping platform, the fixed clamping platform and the corresponding frame plates, and the clamping plates are slidably connected to the guide rods.

[0009] The top of the fixed clamping platform is symmetrically provided with sliding rods, and the movable clamping platform is slidably connected to the sliding rods.

[0010] The corresponding sides between the movable clamping platform, the fixed clamping platform and the corresponding clamping plates are evenly provided with anti-slip convex strips.

[0011] The fixed clamping platform and the corresponding frame plate are fixedly provided with a connecting seat at the bottom, the movable clamping platform and the corresponding frame plate are fixedly provided with a connecting seat at the top, and the connecting head is fixedly provided on the connecting seat.

[0012] A through hole is provided in the radial direction of one end of the screw rod away from the clamping plate, a handle is slidably arranged inside the through hole, and plugs are fixedly arranged at both ends of the handle.

[0013] The movable clamping platform, the fixed clamping platform, the frame plate and the clamping plate are all "I"-shaped plate structures.

[0014] A processing machine tool comprises the metal sheet stretching fixture as described in any one of the above items.

[0015] Beneficial effects of the utility model:

[0016] (1) In the present invention, the connector at the bottom of the fixed clamping table is connected to the connector on the working table of the testing machine, and the connector at the top of the movable clamping table is connected to the connector on the crossbeam of the testing machine. The two ends of the metal sheet are clamped and fixed on one side of the fixed clamping table and the movable clamping table by two clamping mechanisms respectively, and then the movable clamping table is driven by the testing machine to move to apply a certain tensile force to the metal sheet;

[0017] (2) The clamping mechanism drives the clamping plate to move through a screw, and the clamping plate cooperates with the fixed clamping table and the movable clamping table to clamp and fix the end of the metal plate. There is no need to open a pin hole at the end of the plate, and the end of the plate sample can be clamped and fixed directly, which improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the metal sheet stretching clamp in the utility model.

[0019] Figure 2 It is a schematic diagram of the partial structure of the metal sheet stretching clamp in the utility model. DETAILED DESCRIPTION

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is by no means intended to limit the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0021] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1 and 2 As shown, the metal sheet stretching clamp comprises a fixed clamping platform 1, a movable clamping platform 2 is slidably arranged above the fixed clamping platform 1, a clamping mechanism 4 is arranged on one side of the fixed clamping platform 1 and the movable clamping platform 2, and a connector 5 is fixedly arranged on the top of the movable clamping platform 2 and the bottom of the fixed clamping platform 1; the clamping mechanism 4 has a frame plate 41 mounted on one side of the fixed clamping platform 2 and the movable clamping platform 1, a clamping plate 43 is slidably arranged on one side of the frame plate 41 close to the fixed clamping platform 2 and the movable clamping platform 1, a screw rod 44 is threadedly connected in the center of the frame plate 41, and the end of the screw rod 44 is rotatably connected to one side of the clamping plate 43; in this embodiment, the connector 5 at the bottom of the fixed clamping platform 1 It is connected to the connecting head of the working table of the testing machine, and the connecting head 5 on the top of the dynamic clamping table 2 is connected to the connecting head on the crossbeam of the testing machine. The two ends of the metal plate are clamped and fixed on one side of the fixed clamping table 1 and the dynamic clamping table 2 by two clamping mechanisms 4 respectively, and then the dynamic clamping table 2 is driven to move by the testing machine to apply a certain pulling force to the metal plate; the clamping mechanism 4 drives the clamping plate 43 to move through the screw 44, and the clamping plate 43 cooperates with the fixed clamping table 2 and the dynamic clamping table 1 to clamp and fix the end of the metal plate. There is no need to open a pin hole at the end of the plate, and the end of the plate sample can be directly clamped and fixed, thereby improving the convenience of operation.

[0023] In some embodiments, four guide rods 42 are evenly arranged between the movable clamping table 2, the fixed clamping table 1 and the corresponding frame plate 41. The clamping plate 43 is slidably connected to the guide rods 42. The screw 44 is rotated, and the threaded structure between the screw 44 and the frame plate 41 drives the screw 44 to move along its axial direction, so that the screw 44 drives the clamping plate 43 to move along the guide rods 42. The guiding effect of the guide rods 42 can ensure the stability of the movement of the clamping plate 43.

[0024] In some embodiments, sliding rods 3 are symmetrically arranged on the top of the fixed clamping platform 1, and the movable clamping platform 2 is slidably connected to the sliding rods 3. The sliding guiding effect of the sliding rods 3 on the movable clamping platform 2 can improve the stability of the movable clamping platform 2 during the process of moving the movable clamping platform 2 to pull the metal sheet.

[0025] In some embodiments, anti-slip ridges 47 are evenly arranged on the corresponding sides between the movable clamping table 2, the fixed clamping table 1 and the corresponding clamping plate 43, and the fixed clamping table 1, the movable clamping table 2 and the clamping plate 43 are all provided with anti-slip ridges 47 which are an integral structure therewith. The anti-slip ridges 47 can increase the friction between the fixed clamping table 1, the movable clamping table 2, the clamping plate 43 and the metal sheet to avoid slipping during the stretching process.

[0026] In some embodiments, a connecting seat 46 is fixedly provided at the bottom of the fixed clamping platform 1 and the corresponding frame plate 41, a connecting seat 46 is fixedly provided at the top of the movable clamping platform 2 and the corresponding frame plate 41, and the connecting head 5 is fixedly provided on the connecting seat 46, and the connecting seat 46 is used to install and fix the connecting head 5.

[0027] In some embodiments, a through hole is opened radially on the end of the screw 44 that is away from the clamping plate 43, and a handle 45 is slidably arranged inside the through hole. The handle 45 can be used to facilitate the rotation of the screw 44 to clamp or release the metal sheet. Plugs 48 are fixedly arranged at both ends of the handle 45, and the plugs 48 can prevent the handle 45 from slipping off the screw 44.

[0028] In some embodiments, the movable clamping platform 2, the fixed clamping platform 1, the frame plate 41 and the clamping plate 43 are all “I” shaped plate structures.

[0029] In some embodiments, a processing machine tool is disclosed, comprising the metal sheet stretching fixture as in any of the above embodiments.

[0030] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0031] The above-mentioned embodiments only express some implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A metal sheet stretching fixture, Features: It comprises a fixed clamping platform, a movable clamping platform is slidably arranged above the fixed clamping platform, a clamping mechanism is arranged on one side of the fixed clamping platform and the movable clamping platform, and a connector is fixedly arranged on the top of the movable clamping platform and the bottom of the fixed clamping platform; The clamping mechanism comprises a frame plate mounted on one side of the fixed clamping platform and the movable clamping platform, a clamping plate is slidably arranged on the frame plate close to the fixed clamping platform and the movable clamping platform, a screw is threadedly connected in the center of the frame plate, and an end of the screw is rotatably connected to one side of the clamping plate.

2. The metal sheet stretching fixture according to claim 1, Features: Four guide rods are evenly arranged between the movable clamping platform, the fixed clamping platform and the corresponding frame plates, and the clamping plates are slidably connected to the guide rods.

3. The metal sheet stretching fixture according to claim 1, Features: The top of the fixed clamping platform is symmetrically provided with sliding rods, and the movable clamping platform is slidably connected to the sliding rods.

4. The metal sheet stretching fixture according to claim 1, Features: The corresponding sides between the movable clamping platform, the fixed clamping platform and the corresponding clamping plates are evenly provided with anti-slip convex strips.

5. The metal sheet stretching fixture according to claim 1, Features: The fixed clamping platform and the corresponding frame plate are fixedly provided with a connecting seat at the bottom, the movable clamping platform and the corresponding frame plate are fixedly provided with a connecting seat at the top, and the connecting head is fixedly provided on the connecting seat.

6. The metal sheet stretching fixture according to claim 1, Features: A through hole is provided in the radial direction of one end of the screw rod away from the clamping plate, a handle is slidably provided inside the through hole, and plugs are fixedly provided at both ends of the handle.

7. The metal sheet stretching fixture according to claim 1, Features: The movable clamping platform, the fixed clamping platform, the frame plate and the clamping plate are all "I" shaped plate structures.

8. A machining center machine tool, Features: It comprises the metal sheet stretching fixture as described in any one of claims 1 to 7.

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