Automatic clamping type tension tester

Abstract

The utility model relates to the field of tension testing machines, in particular to an automatic clamping type tension testing machine. The tension testing machine comprises a machine table, a first base, a tension sensor, a second base, a first clamping jaw automatic opening and closing mechanism, a second clamping jaw automatic opening and closing mechanism and an electric linear moving mechanism, the machine table is connected with the first base through the tension sensor, the first clamping jaw automatic opening and closing mechanism is installed on the first base, and the second clamping jaw automatic opening and closing mechanism is installed on the second base. The first base and the second base are connected to the machine table in a sliding fit mode, and the second base is installed on a moving part of the electric linear moving mechanism. The two ends of a product are clamped through the first clamping jaw automatic opening and closing mechanism and the second clamping jaw automatic opening and closing mechanism respectively. The product is pulled through the electric linear moving mechanism, and the pulling force is controlled through the pulling force sensor. The pulling detection efficiency of the product is improved.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing machines, and in particular to an automatic clamping tensile testing machine. Background Technology

[0002] A tensile testing machine is a mechanically applied testing machine used to perform static load, tensile, compression, bending, shearing, tearing, and peeling tests on various materials. However, existing tensile testing machines cannot automatically grip both ends of the product being tested. Utility Model Content

[0003] The technical problem this invention aims to solve is: to address the technical problem described in the background art, this invention provides an automatic clamping tensile testing machine. Two automatic clamping mechanisms, a first clamping mechanism and a second clamping mechanism, respectively clamp both ends of the product. An electric linear motion mechanism pulls the product, and a tensile force sensor controls the pulling force. This application improves the efficiency of tensile testing of products.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] An automatic clamping tensile testing machine includes a machine base, a base one, a tensile sensor, a base two, an automatic clamping mechanism one, an automatic clamping mechanism two, and an electric linear movement mechanism. The machine base is connected to the base one via the tensile sensor. The automatic clamping mechanism one is installed on the base one, and the automatic clamping mechanism two is installed on the base two. The base one and the base two are slidably connected to the machine base, and the base two is installed on the moving part of the electric linear movement mechanism.

[0006] Specifically, the automatic opening and closing mechanism of the gripper includes a clamping block, rollers, arc-shaped slots, a push plate, a push plate drive cylinder, and a tension spring. Two clamping blocks are hinged to the base. The base has two symmetrical arc-shaped slots. A shaft is vertically connected to the bottom of the clamping block, and rollers are connected to the shaft. The shaft passes through the arc-shaped slots. The cylinder body of the push plate drive cylinder is fixed to the base. A push plate is fixed to the piston rod of the push plate drive cylinder. The front end of the push plate has two inclined surfaces, which fit against the two rollers. The two shafts are connected to the base through two tension springs.

[0007] Specifically, the front end of the clamping block is provided with an arc-shaped surface, and teeth are provided on the arc-shaped surface.

[0008] Specifically, the second automatic opening and closing mechanism of the gripper includes a conical groove, a second gripper block, a pusher block, a pusher block drive cylinder, and a second tension spring. The second base is provided with a conical groove, and two symmetrical second grippers are slidably fitted in the conical groove. The two second grippers are respectively connected to the second base by two second tension springs. The cylinder body of the pusher block drive cylinder is fixed on the second base, and a pusher block is fixed on the piston rod of the pusher block drive cylinder. The pusher block is attached to the tail end of the two second grippers.

[0009] Specifically, the inner side of the clamping block two is provided with teeth.

[0010] Specifically, the machine platform is equipped with a dust cover.

[0011] Specifically, the electric linear motion mechanism includes a motor, a reducer, a lead screw, and a nut. The lead screw is rotatably connected inside the machine base, the output shaft of the motor is connected inside the reducer, the reducer is connected to the lead screw, and a nut is threaded onto the lead screw and fixed to the base.

[0012] The beneficial effects of this utility model are as follows: This utility model provides an automatic clamping tensile testing machine. Two automatic clamping mechanisms, a first clamping mechanism and a second clamping mechanism, respectively clamp both ends of the product. An electric linear motion mechanism pulls the product, and a tensile force sensor controls the pulling force. This application improves the efficiency of tensile testing of products. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the automatic opening and closing mechanism of the gripper according to the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the second automatic gripper opening and closing mechanism of this utility model;

[0017] In the diagram: 1. Machine base; 2. Base 1; 3. Tension sensor; 4. Base 2; 5. Automatic gripper opening and closing mechanism.

[0018] 1. Automatic opening and closing mechanism for grippers 2. 7. Electric linear movement mechanism 3. Grip block 1 4. Roller 5. Arc-shaped slot 6. Push plate 7. Push plate drive cylinder 8. Tension spring 1 9. Conical slide groove 10. Grip block 2 11. Push block 12. Push block 13. Push block 14. Push block drive cylinder 15. Tension spring 2 Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the automatic opening and closing mechanism of the gripper according to the present invention; Figure 3 This is a schematic diagram of the structure of the second automatic gripper opening and closing mechanism of this utility model.

[0021] As attached Figure 1 As shown, an automatic clamping tensile testing machine includes a machine base 1, a base 2, a tensile sensor 3, a base 4, an automatic gripper opening and closing mechanism 5, an automatic gripper opening and closing mechanism 6, and an electric linear movement mechanism 7. The machine base 1 is connected to the base 2 via the tensile sensor 3. The automatic gripper opening and closing mechanism 5 is installed on the base 2, and the automatic gripper opening and closing mechanism 6 is installed on the base 4. The base 2 and the base 4 are slidably connected to the machine base 1, and the base 4 is mounted on the moving part of the electric linear movement mechanism 7.

[0022] As attached Figure 2 As shown, the automatic opening and closing mechanism 5 of the gripper includes a gripper block 51, rollers 52, arc-shaped slots 53, a push plate 54, a push plate drive cylinder 55, and tension springs 56. Two gripper blocks 51 are hinged on the base 2. The base 2 has two symmetrical arc-shaped slots 53. A shaft is vertically connected to the bottom of the gripper block 51. Rollers are connected to the shaft. The shaft passes through the arc-shaped slots 53. The cylinder body of the push plate drive cylinder 55 is fixed on the base 2. A push plate 54 is fixed on the piston rod of the push plate drive cylinder 55. The front end of the push plate 54 has two inclined surfaces. The two inclined surfaces are attached to the two rollers 52. The two shafts are respectively connected to the base 2 by two tension springs 56.

[0023] The piston rod of the push plate drive cylinder 55 extends and drives the push plate 54 forward to push the two rollers 52, causing the two shafts to move along the two arc-shaped slots 53 respectively, causing the two clamping blocks 51 to rotate and open. At this time, the tension spring 56 is in a stretched state. Then, one end of the product is placed between the two clamping blocks 51. Finally, the push plate 54 retracts to its original position. Driven by the retraction of the tension spring 56, the two clamping blocks 51 rotate in opposite directions, thereby clamping the product.

[0024] The front end of clamping block 51 has an arc-shaped surface with teeth. The teeth can improve the friction of clamping the product.

[0025] As attached Figure 3As shown, the automatic opening and closing mechanism 6 of the gripper includes a conical slide groove 61, a gripping block 62, a push block 63, a push block drive cylinder 64, and a tension spring 65. The base 4 is provided with a conical slide groove 61. Two symmetrical gripping blocks 62 are slidably fitted in the conical slide groove 61. The two gripping blocks 62 are respectively connected to the base 4 through two tension springs 65. The cylinder body of the push block drive cylinder 64 is fixed on the base 4. The push block 63 is fixed on the piston rod of the push block drive cylinder 64. The push block 63 is attached to the tail end of the two gripping blocks 62.

[0026] The piston rod of the pusher-driven cylinder 64 extends and drives the pusher 63 to move towards the two clamping blocks 62, thereby pushing the two clamping blocks 62 forward along the conical slide groove 61. As the two clamping blocks 62 move forward, the distance between them gradually narrows until they clamp the product, at which point the tension spring 65 is stretched. When the pusher 63 retracts and resets, the two clamping blocks 62 move in opposite directions and gradually open under the retraction of the tension spring 65.

[0027] The inner surface of clamping block 2 62 is provided with teeth. The teeth on the inner surface of clamping block 2 62 can improve the friction with the product.

[0028] The table surface of machine 1 is equipped with a dust cover.

[0029] The electric linear motion mechanism 7 includes a motor, a reducer, a lead screw, and a nut. The lead screw is rotatably connected inside the machine base 1. The output shaft of the motor is connected inside the reducer. The reducer is connected to the lead screw. A nut is threaded onto the lead screw and is fixed on the base 4.

[0030] The motor and reducer drive the lead screw to rotate, causing the nut to move along the lead screw, and the nut, in turn, moves the base 24 horizontally in a straight line.

[0031] The working method of this application is as follows: the two ends of the product are placed on base 2 and base 4 respectively, and then the automatic opening and closing mechanism 5 and the automatic opening and closing mechanism 6 are activated to clamp the two ends of the product. Finally, the electric linear movement mechanism 7 drives base 4 and the automatic opening and closing mechanism 6 to move horizontally outward in a straight line, thus pulling the product. The tension sensor 3 connected to base 2 transmits the tension value to the PLC in real time, thereby controlling the tension. This completes the tensile test of the product.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic clamping tensile testing machine, characterized in that, The system includes a machine base (1), a base one (2), a tension sensor (3), a base two (4), an automatic gripper opening and closing mechanism one (5), an automatic gripper opening and closing mechanism two (6), and an electric linear movement mechanism (7). The machine base (1) is connected to the base one (2) via the tension sensor (3). The automatic gripper opening and closing mechanism one (5) is installed on the base one (2), and the automatic gripper opening and closing mechanism two (6) is installed on the base two (4). The base one (2) and the base two (4) are slidably connected to the machine base (1), and the base two (4) is installed on the moving part of the electric linear movement mechanism (7).

2. The automatic clamping tensile testing machine according to claim 1, characterized in that: The automatic opening and closing mechanism 1 (5) of the gripper includes a gripper block 1 (51), a roller (52), an arc-shaped slot (53), a push plate (54), a push plate drive cylinder (55), and a tension spring 1 (56). Two gripper blocks 1 (51) are hinged on the base 1 (2). The base 1 (2) is provided with two symmetrical arc-shaped slots (53). A shaft is vertically connected to the bottom of the gripper block 1 (51). A roller is connected to the shaft. The shaft passes through the arc-shaped slot (53). The cylinder body of the push plate drive cylinder (55) is fixed on the base 1 (2). A push plate (54) is fixed on the piston rod of the push plate drive cylinder (55). The front end of the push plate (54) is provided with two inclined surfaces. The two inclined surfaces are attached to the two rollers (52). The two shafts are respectively connected to the base 1 (2) through two tension springs 1 (56).

3. The automatic clamping tensile testing machine according to claim 2, characterized in that: The front end of the clamping block (51) is provided with an arc-shaped surface, and teeth are provided on the arc-shaped surface.

4. The automatic clamping tensile testing machine according to claim 1, characterized in that: The automatic opening and closing mechanism 2 (6) of the gripper includes a conical slide groove (61), a gripper block 2 (62), a push block (63), a push block drive cylinder (64), and a tension spring 2 (65). The base 2 (4) is provided with a conical slide groove (61). Two symmetrical gripper blocks 2 (62) are slidably fitted in the conical slide groove (61). The two gripper blocks 2 (62) are respectively connected to the base 2 (4) by two tension springs 2 (65). The cylinder body of the push block drive cylinder (64) is fixed on the base 2 (4). The piston rod of the push block drive cylinder (64) is fixed with a push block (63). The push block (63) is attached to the tail end of the two gripper blocks 2 (62).

5. The automatic clamping tensile testing machine according to claim 4, characterized in that: The inner side of the clamping block 2 (62) is provided with teeth.

6. The automatic clamping tensile testing machine according to claim 1, characterized in that: The machine tool (1) is equipped with a dust cover on its table surface.

7. The automatic clamping tensile testing machine according to claim 1, characterized in that: The electric linear motion mechanism (7) includes a motor, a reducer, a lead screw, and a nut. The lead screw is rotatably connected inside the machine base (1). The output shaft of the motor is connected inside the reducer. The reducer is connected to the lead screw. A nut is threaded onto the lead screw and fixed on the base (4).

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