A clamp for a tensile testing machine

Abstract

This utility model relates to the field of tensile testing technology and discloses a fixture for a tensile testing machine, comprising: a fixture body, a gear assembly, a displacement assembly, and a blocking assembly. The fixture body includes a worktable, a lifting mechanism disposed on one side above the worktable, a tensile clamping mechanism disposed on the lifting mechanism, and a fixing clamping mechanism disposed on the other side above the worktable. This utility model has the following advantages and effects: by incorporating the gear assembly, displacement assembly, and blocking assembly, the displacement assembly drives the gear assembly to change its angle, thereby enabling the two blocking assemblies to change their angles synchronously. When the blocking assemblies change their angles, they provide convenient clamping and fixing of the workpiece when unfolded. When closed, they can block flying debris during the process of the workpiece breaking and flying due to excessive tensile force, preventing injury to personnel from the flying debris.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing technology, and in particular to a fixture for a tensile testing machine. Background Technology

[0002] Tensile testing machine fixtures are crucial components used to hold specimens and ensure the smooth conduct of tests. Their function is to fix, support, or clamp the specimen, enabling the tensile testing machine to apply force accurately. Force value display devices are used to determine whether materials or finished products are qualified. These fixtures are key factors in ensuring the smooth conduct of tests and the accuracy of results. By clamping the workpiece on both sides, one set of clamping mechanisms provides a fixed position, while the other set, which allows for displacement, lifts the workpiece. During this lifting process, the workpiece is affected by the tensile force. By adjusting the tensile force, the state of the workpiece during the test can be observed.

[0003] During the process of clamping a workpiece and subjecting it to excessive tension, if the workpiece is of substandard quality, the excessive tension can easily cause the workpiece to shatter and scatter. Personnel standing in front of the equipment observing the workpiece during the test process are easily injured by the flying debris. Utility Model Content

[0004] The purpose of this invention is to provide a clamp for a testing tensile testing machine that can solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a clamp for a tensile testing machine, comprising: a clamp body, a gear assembly, a displacement assembly, and a blocking assembly. The clamp body includes a worktable, a lifting mechanism disposed on one side above the worktable, a tensile clamping mechanism disposed on the lifting mechanism, and a fixing clamping mechanism disposed on the other side above the worktable. The gear assembly is disposed on one side of the bottom of the worktable, the displacement assembly is disposed on the other side of the bottom of the worktable, and the blocking assembly is disposed directly above the gear assembly.

[0006] By adopting the above technical solution, effective protection can be provided during the experiment.

[0007] A further feature of this invention is that the number of gear assemblies is two sets, each gear assembly includes a fixing plate welded to both ends of one side of the bottom of the workbench, the fixing plate is composed of two sets spaced apart, the other end of the fixing plate has a circular hole, and a connecting shaft is rotatably arranged inside the circular hole of the fixing plate.

[0008] By adopting the above technical solution, it is possible to provide a stable connection shaft for changing angles.

[0009] A further feature of this invention is that the gear assembly further includes a large gear and a small gear fixed on the connecting shaft, and there are two sets of both the large gear and the small gear, with the two sets of large gear meshing with each other.

[0010] By adopting the above technical solution, the angle can be stably changed by connecting with the connecting shaft.

[0011] A further feature of this invention is that the displacement component includes a slide rail welded to the center of the bottom of the workbench, and a rack block slidably disposed on the slide rail, the rack block being disposed between two sets of small gears.

[0012] By adopting the above technical solution, the rack block can stably change its position on the slide rail.

[0013] A further feature of this invention is that toothed blocks are provided on both sides of the outer wall of the rack block, and the toothed blocks on both sides of the rack block respectively mesh with two sets of small gears.

[0014] By adopting the above technical solution, the two sets of small gears are driven to change angle during the displacement of the rack block through meshing.

[0015] A further feature of this invention is that the displacement assembly also includes a positioning rod welded to the bottom outer wall of the rack block.

[0016] By adopting the above technical solution, the displacement of the positioning rod causes the rack block to move as well.

[0017] A further feature of this invention is that the displacement assembly also includes a servo motor fixed to the outer wall of the worktable, and a toggle block is connected to the bottom output end of the servo motor via a rotating shaft, and the toggle block has a strip-shaped hole.

[0018] By adopting the above technical solution, the servo motor can drive the toggle block to achieve reciprocating changes in angle.

[0019] A further feature of this invention is that the positioning rod is disposed inside the strip-shaped hole of the actuating block.

[0020] By adopting the above technical solution, the reciprocating angle of the toggle block is changed, thereby driving the positioning rod to change its position.

[0021] A further feature of this invention is that the shielding assembly includes a mounting rod welded to the top of the connecting shaft, and a shielding plate is provided on the outer wall of the mounting rod.

[0022] By adopting the above technical solution, the shield can be changed in angle by connecting it with the mounting rod.

[0023] A further feature of this invention is that the number of the shielding plates is two sets, the shielding plates are made of transparent acrylic, and the shielding plates are C-shaped when viewed from above.

[0024] By adopting the above technical solution, the shield made of transparent material on both sides can provide good visibility while providing protection.

[0025] The beneficial effects of this utility model are as follows: by setting up a gear assembly, a displacement assembly, and a shielding assembly, the displacement assembly drives the gear assembly to change its angle, thereby enabling the two sets of shielding assemblies to change their angles synchronously. When the shielding assembly changes its angle, it can provide convenience for clamping and fixing the workpiece when unfolded. When closed, it can shield the flying debris during the process of the workpiece breaking and flying due to excessive tension, thus preventing the flying debris from causing injury to personnel. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional top view of the structure of this utility model;

[0028] Figure 2 This is a three-dimensional bottom-view structural diagram of the present invention;

[0029] Figure 3 This is a three-dimensional structural diagram of the gear assembly, displacement assembly, and shielding assembly of this utility model;

[0030] Figure 4 For the present utility model Figure 3 A magnified view of the three-dimensional structure at point A.

[0031] In the diagram, 1. Workbench; 2. Lifting mechanism; 3. Tension clamping mechanism; 4. Fixing clamping mechanism; 5. Gear assembly; 501. Fixing plate; 502. Connecting shaft; 503. Large gear; 504. Small gear; 6. Displacement assembly; 601. Slide rail; 602. Rack block; 603. Positioning rod; 604. Servo motor; 605. Actuating block; 606. Strip hole; 7. Covering assembly; 701. Mounting rod; 702. Covering plate. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] Reference Figure 1-4 A fixture for a testing tensile testing machine includes: a worktable 1, a lifting mechanism 2, a tensile clamping mechanism 3, a fixing clamping mechanism 4, a gear assembly 5, a displacement assembly 6, and a blocking assembly 7. The fixture body includes the worktable 1, the lifting mechanism 2 disposed on one side above the worktable 1, the tensile clamping mechanism 3 disposed on the lifting mechanism 2, and the fixing clamping mechanism 4 disposed on the other side above the worktable 1. The above is prior art and will not be described in detail below. The gear assembly 5 is disposed on one side of the bottom of the worktable 1, the displacement assembly 6 is disposed on the other side of the bottom of the worktable 1, and the blocking assembly 7 is disposed directly above the gear assembly 5.

[0034] The number of gear assemblies 5 is two sets. The gear assembly 5 includes a fixing plate 501 welded to both ends of one side of the bottom of the workbench 1. The fixing plate 501 consists of two sets arranged at intervals. The other end of the fixing plate 501 has a round hole. A connecting shaft 502 is rotatably arranged inside the round hole of the fixing plate 501. A large gear 503 and a small gear 504 are fixed on the connecting shaft 502. There are two sets of both the large gear 503 and the small gear 504. The two sets of large gears 503 mesh with each other.

[0035] The displacement component 6 includes a slide rail 601 welded to the center of the bottom of the worktable 1, a rack block 602 slidably mounted on the slide rail 601, the rack block 602 being positioned between two sets of small gears 504, toothed blocks being provided on both sides of the outer wall of the rack block 602, and the toothed blocks on both sides of the rack block 602 respectively meshing with the two sets of small gears 504, a positioning rod 603 welded to the bottom outer wall of the rack block 602, a servo motor 604 fixed to the outer wall of the worktable 1, a toggle block 605 connected to the bottom output end of the servo motor 604 via a rotating shaft, a strip hole 606 being provided on the toggle block 605, and the positioning rod 603 being positioned inside the strip hole 606 of the toggle block 605.

[0036] The mounting rod 701 is welded to the top of the connecting shaft 502. A baffle plate 702 is provided on the outer wall of the mounting rod 701. There are two sets of baffle plates 702. The baffle plates 702 are made of transparent acrylic and are C-shaped when viewed from above.

[0037] In this invention, the bottom end of the workpiece is fixed on the fixing fixture mechanism 4, and the top end of the workpiece is fixed on the stretching fixture mechanism 3. After the workpiece is fixed, the displacement component 6 drives the gear component 5 to change its angle. After the gear component 5 changes its angle, two sets of shielding components 7 shield the workpiece, thereby providing protection for personnel. The lifting mechanism 2 on the worktable 1 is activated, thereby driving the stretching fixture mechanism 3 to lift the workpiece for stretching, which stabilizes the test of the workpiece.

[0038] The servo motor 604 is started to drive the actuating block 605 connected to the output end via the rotating shaft to rotate. During the rotation of the actuating block 605, because the positioning rod 603 is inside the slot 606 of the actuating block 605, the actuating block 605 drives the positioning rod 603 and the rack block 602 on the positioning rod 603 to move. At this time, the rack block 602 can stably change its position through the slide rail 601. Because the slide rail 601 meshes with the small gears 504 on both sides, the small gears 504 will change their angle within the fixed plate 501 through the connecting shaft 502. Because the large gears 503 on the two sets of connecting shafts 502 mesh, the two sets of connecting shafts 502 will change their angle synchronously. At this time, the baffle plate 702 on the mounting rod 701 will also change its angle synchronously.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for a tensile testing machine, comprising, characterized in that: The fixture body includes a workbench (1), a lifting mechanism (2) disposed on one side above the workbench (1), a tensioning fixture mechanism (3) disposed on the lifting mechanism (2), and a fixing fixture mechanism (4) disposed on the other side above the workbench (1). Gear assembly (5), the gear assembly (5) is disposed on one side of the bottom of the worktable (1); Displacement assembly (6), the displacement assembly (6) is disposed on the other side of the bottom of the worktable (1); A shielding component (7) is disposed directly above the gear assembly (5).

2. The fixture for a tensile testing machine according to claim 1, characterized in that: The number of gear assemblies (5) is two sets. The gear assembly (5) includes a fixing plate (501) welded to both ends of one side of the bottom of the workbench (1). The fixing plate (501) consists of two sets arranged at intervals. A circular hole is opened at the other end of the fixing plate (501). A connecting shaft (502) is rotatably arranged inside the circular hole of the fixing plate (501).

3. The fixture for a tensile testing machine according to claim 2, characterized in that: The gear assembly (5) also includes a large gear (503) and a small gear (504) fixed on the connecting shaft (502). There are two sets of both the large gear (503) and the small gear (504), and the two sets of the large gear (503) mesh with each other.

4. The fixture for a tensile testing machine according to claim 1, characterized in that: The displacement component (6) includes a slide rail (601) welded to the center of the bottom of the workbench (1), and a rack block (602) slidably disposed on the slide rail (601), the rack block (602) being disposed between two sets of small gears (504).

5. The fixture for a tensile testing machine according to claim 4, characterized in that: The rack block (602) has toothed blocks on both sides of its outer wall, and the toothed blocks on both sides of the rack block (602) mesh with two sets of small gears (504).

6. The fixture for a tensile testing machine according to claim 4, characterized in that: The displacement assembly (6) also includes a positioning rod (603) welded to the bottom outer wall of the rack block (602).

7. The fixture for a tensile testing machine according to claim 6, characterized in that: The displacement component (6) also includes a servo motor (604) fixed on the outer wall of the worktable (1). The bottom output end of the servo motor (604) is connected to a toggle block (605) via a rotating shaft. The toggle block (605) has a strip hole (606).

8. The fixture for a tensile testing machine according to claim 6, characterized in that: The positioning rod (603) is disposed inside the strip hole (606) of the actuating block (605).

9. The fixture for a tensile testing machine according to claim 1, characterized in that: The shielding assembly (7) also includes a mounting rod (701) welded to the top of the connecting shaft (502), and a shielding plate (702) is provided on the outer wall of the mounting rod (701).

10. The fixture for a tensile testing machine according to claim 9, characterized in that: There are two sets of the shielding plates (702). The shielding plates (702) are made of transparent acrylic and are C-shaped when viewed from above.

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