Feeding and conveying device for tensile test of test piece

Abstract

The utility model discloses a feeding and conveying device for a tensile test of a test piece, which relates to the field of feeding and conveying and comprises a conveying seat and a push plate, side limiting plates are fixed at two ends of the conveying seat in the width direction, a test piece conveying channel is formed between the two side limiting plates, and the push plate is arranged in the test piece conveying channel in a sliding manner. The push plate has the freedom degree of moving in the length direction of the conveying base, the end face, close to the test piece conveying channel, of the side limiting plate is provided with a clamping guide plate, the clamping guide plate has the freedom degree of moving in the width direction of the conveying base, and the clamping guide plate moves into the side limiting plate away from the test piece conveying channel. Therefore, a plurality of test pieces can be placed in the test piece conveying channel from the position above the conveying base at a time, then the two clamping guide plates move close to the test piece conveying channel, the positions of the test pieces are adjusted through the two clamping guide plates, and the test pieces are placed in the test piece conveying channel in the middle. Therefore, the push plate can accurately push the test piece into the tool position of the tensile testing machine.

Description

Technical Field

[0001] The utility model relates to the field of material feeding and conveying, in particular to a material feeding and conveying device used for a specimen tensile test. Background Art

[0002] The tensile testing machine is a mechanical force testing machine used to perform mechanical property tests such as static load, stretching, compression, bending, shearing, and peeling on materials. It is suitable for various physical and mechanical property tests of plastic plates, pipes, special-shaped materials, plastic films, rubber, wires and cables, etc. It is an indispensable testing equipment for material development, physical property testing, teaching research, quality control, etc. In the tensile test, a specimen feeding and conveying mechanism is required. The specimens to be tested are sequentially conveyed to the clamping station of the tensile testing machine through the specimen feeding and conveying mechanism. In order to facilitate the tensile test, the specimens will be made into an I-shaped or T-shaped shape. Generally, the I-shaped is the majority. At present, the conveying channel of the specimen conveying mechanism is set to an inverted T shape, so that the I-shaped or T-shaped specimens can be guided and conveyed. This results in that when the specimens are placed in the conveying channel, the specimens need to be slid into the conveying channel one by one from one end of the specimen conveying mechanism, resulting in low efficiency in loading the specimens into the conveying channel and inconvenient operation. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a feeding and conveying device for a specimen tensile test, so as to solve the deficiencies of the prior art.

[0004] The purpose of the utility model is achieved through the following technical solutions: a feeding and conveying device for specimen tensile test, comprising a conveying seat and a push plate, side limit plates are fixed at both ends of the conveying seat in the width direction, a specimen conveying channel is formed between the two side limit plates, the push plate is slidably arranged in the specimen conveying channel, the push plate has the freedom to move along the length direction of the conveying seat, the side limit plate is provided with a clamping guide plate on the end face of the specimen conveying channel close to the specimen conveying channel, and the clamping guide plate has the freedom to move along the width direction of the conveying seat.

[0005] Furthermore, a mounting groove is provided on one side of the side limit plate close to the specimen conveying channel, and the mounting groove runs through the length direction of the side limit plate. A screw rod is arranged in the mounting groove, and the screw rod is rotatably connected to the side limit plate. One side of the clamping guide plate is slidably adapted in the mounting groove, and the clamping guide plate is threadedly mounted on the screw rod.

[0006] Furthermore, a main shaft is rotatably arranged at the bottom of the conveying seat, and both ends of the main shaft are equipped with driving pulleys, one end of the screw rod passes through the side limit plate and is connected to the driven pulley, and the driving pulley is connected to the driven pulley through a synchronous belt transmission, and a motor is installed at the bottom of the conveying seat, and the output shaft of the motor is connected to a driving gear, and a driven gear is mounted on the main shaft, and the driven gear meshes with the driving gear.

[0007] Furthermore, the end surface of the clamping guide plate close to the specimen conveying channel is an outwardly convex arc.

[0008] Furthermore, a pushing cylinder is installed at one end of the conveying seat in the length direction, and the telescopic shaft of the pushing cylinder is connected to the pushing plate.

[0009] Furthermore, a regular baffle is provided at one end of the conveying seat away from the push plate, and the regular baffle has the freedom to move along the height direction of the conveying seat.

[0010] Furthermore, a cylinder is vertically installed at the bottom of the conveying seat, and the bottom of the regular baffle passes through the conveying seat and is connected to the telescopic shaft of the cylinder.

[0011] Furthermore, the end surface of the regular baffle close to the specimen conveying channel and the end surface of the push plate close to the specimen conveying channel are both rotatably provided with a plurality of rollers, the plurality of rollers are arranged at equal intervals along the width direction of the conveying seat, and the axes of the rollers are arranged vertically.

[0012] The beneficial effects of the utility model are:

[0013] When loading the specimen into the specimen conveying channel, the clamping guide plate moves away from the specimen conveying channel and into the side limit plate, so that the cross-section of the conveying channel is rectangular and its size is larger than the size of the specimen, so that multiple specimens can be placed from above the conveying seat into the specimen conveying channel at one time, and then the two clamping guide plates move closer to the specimen conveying channel, and the position of the specimen is adjusted by the two clamping guide plates, so that the specimen is centered in the specimen conveying channel, so that the push plate can accurately push the specimen into the tooling position of the tensile testing machine to complete the tensile test loading of the specimen. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the structure of a feeding and conveying device for a specimen tensile test. Figure 1 ;

[0015] Figure 2 The utility model is a schematic diagram of the structure of a feeding and conveying device for a specimen tensile test. Figure 2 ;

[0016] Figure 3The utility model is a schematic diagram of the structure of a feeding and conveying device for a specimen tensile test. Figure 3 ;

[0017] In the figure, 1-conveying seat, 2-push plate, 3-side limit plate, 4-clamping guide plate, 5-mounting groove, 6-screw, 7-spindle, 8-driving pulley, 9-driven pulley, 10-synchronous belt, 11-motor, 12-driving gear, 13-driven gear, 14-pushing cylinder, 15-regular baffle, 16-cylinder, 17-roller. DETAILED DESCRIPTION

[0018] Embodiment 1

[0019] like Figures 1 to 3 As shown, a feeding and conveying device for a specimen tensile test comprises a conveying seat 1 and a push plate 2. Both ends of the conveying seat 1 in the width direction are fixed with side limit plates 3. A specimen conveying channel is formed between the two side limit plates 3. The push plate 2 is slidably arranged in the specimen conveying channel. The push plate 2 has the freedom to move along the length direction of the conveying seat 1. The end surface of the side limit plate 3 close to the specimen conveying channel is provided with a clamping guide plate 4. The clamping guide plate 4 has the freedom to move along the width direction of the conveying seat 1. When the specimen is loaded into the specimen conveying channel, the clamping guide plate 4 moves away from the specimen conveying channel into the side limit plate 3, so that the cross-section of the conveying channel is rectangular, and the size is larger than the size of the specimen. The size of the specimen is large, so that multiple specimens can be placed from the top of the conveying seat 1 into the specimen conveying channel at one time, and the specimens can be quickly placed in the specimen conveying channel to improve the specimen loading efficiency. Then the two clamping guide plates 4 move close to the specimen conveying channel, and the position of the specimen is adjusted by the two clamping guide plates so that the specimen is centered in the specimen conveying channel, and the specimen is clamped by the clamping guide plate 4. At this time, the cross-sectional shape of the specimen conveying channel is an inverted T-shape, which can guide and clamp the specimen so that the specimen can only move along the length direction of the conveying seat 1, so that the push plate 2 can accurately push the specimen into the tooling position of the tensile testing machine to complete the tensile test loading of the specimen.

[0020] Furthermore, a push cylinder 14 is installed at one end of the conveying seat 1 in the length direction, and the telescopic shaft of the push cylinder 14 is connected to the push plate 2. The push cylinder 14 drives the push plate 2 to move along the length direction of the conveying seat 1 to realize automatic loading of the test piece.

[0021] Embodiment 2

[0022] On the basis of Example 1, the end face of the clamping guide plate 4 close to the specimen conveying channel is an outwardly convex arc, and the arc-shaped end of the clamping guide plate 4 contacts the specimen, reducing the contact area between the clamping guide plate 4 and the specimen. At the same time, the arc-shaped end of the clamping guide plate 4 is smoothed, which greatly reduces the friction between the specimen and the clamping guide plate 4, so that the push plate 2 can easily push the specimen to the tooling position of the tensile testing machine.

[0023] Embodiment 3

[0024] Based on the second embodiment, Figures 1 to 3 As shown, a regular baffle 15 is provided at one end of the conveying seat 1 away from the push plate 2. The regular baffle 15 has the freedom to move along the height direction of the conveying seat 1. A cylinder 16 is vertically installed at the bottom of the conveying seat 1. The bottom of the regular baffle 15 passes through the telescopic shaft of the conveying seat 1 connected to the cylinder 16. After the specimen is placed in the specimen conveying channel, it is necessary to regularize the specimen so that the specimen can be accurately loaded onto the tooling position of the tensile testing machine. During regularization, the cylinder 16 drives the regular baffle 15 to move upward, so that the regular baffle 15 moves into the specimen conveying channel, and then the push plate 2 pushes the specimen forward to move so that the specimen contacts the regular baffle 15. Through the joint action of the push plate 2 and the regular baffle 15, the specimens are in contact with each other, and then the clamping guide plate 4 moves close to the specimen conveying channel to complete the positioning of the specimen. During loading, the cylinder 16 drives the regular baffle 15 to move downward, so that the push plate 2 can smoothly push the specimen to be loaded onto the tensile testing machine.

[0025] Embodiment 4

[0026] On the basis of Example 3, the end surface of the regularizing baffle 15 close to the specimen conveying channel and the end surface of the push plate 2 close to the specimen conveying channel are both rotatably provided with a plurality of rollers 17, and the plurality of rollers 17 are arranged at equal intervals along the width direction of the conveying seat 1, and the axes of the rollers 17 are arranged vertically. Through the arrangement of the rollers 17, when the clamping guide plate 4 pushes the specimen to move for regularization, there is rolling friction between the regularizing baffle 15 and the specimen, and between the push plate 2 and the specimen, which greatly reduces the friction force on the specimen when it moves, and facilitates the regularization of the specimen.

[0027] Embodiment 5

[0028] Based on the fourth embodiment, Figure 1 and Figure 2As shown, a mounting groove 5 is provided on one side of the side limit plate 3 close to the specimen conveying channel, and the mounting groove 5 runs through the length direction of the side limit plate 3. A screw rod 6 is arranged in the mounting groove 5, and the screw rod 6 is rotatably connected to the side limit plate 3. One side of the clamping guide plate 4 is slidably adapted in the mounting groove 5, and the clamping guide plate 4 is threadedly sleeved on the screw rod 6. A main shaft 7 is rotatably arranged at the bottom of the conveying seat 1, and both ends of the main shaft 7 are sleeved with a driving pulley 8. One end of the screw rod 6 passes through the side limit plate 3 and is connected to a driven pulley 9. The driving pulley 8 is connected to the driven pulley 9 through a synchronous belt 10. A motor 11 is installed at the bottom of the conveying seat 1, and the output shaft of the motor 11 is connected to a driving gear 12. The main shaft 7 is sleeved with a driven gear 8. The driven gear 13 meshes with the driving gear 12, and the motor 11 drives the main shaft 7 to rotate through the meshing of the driving gear 12 and the driven gear 13. The main shaft 7 drives the driving pulleys 8 at both ends to rotate, and the driving pulley 8 drives the driven pulley 9 to rotate through the synchronous belt 10. The driven pulley 9 drives the screw rod 6 to rotate, so that the clamping guide plate 4 moves linearly along the axial direction of the screw rod 6. Through the forward and reverse rotation of the motor 11, the clamping guide plate 4 moves close to or away from the specimen conveying channel to complete the centering adjustment of the specimen. Through the driving mode of the synchronous belt 10, the two screw rods 6 can rotate synchronously, so that the centering adjustment accuracy of the specimen is higher, ensuring that the specimen can be accurately loaded onto the tensile testing machine.

Claims

1. A feeding and conveying device for a specimen tensile test, characterized in that: The invention comprises a conveying seat (1) and a push plate (2), wherein both ends of the conveying seat (1) in the width direction are fixed with side limit plates (3), a specimen conveying channel is formed between the two side limit plates (3), the push plate (2) is slidably arranged in the specimen conveying channel, the push plate (2) has the freedom to move along the length direction of the conveying seat (1), and the end surface of the side limit plate (3) close to the specimen conveying channel is provided with a clamping guide plate (4), and the clamping guide plate (4) has the freedom to move along the width direction of the conveying seat (1).

2. A feeding and conveying device for specimen tensile test according to claim 1, characterized in that: A mounting groove (5) is provided on one side of the side limit plate (3) close to the specimen conveying passage. The mounting groove (5) runs through the length direction of the side limit plate (3). A screw rod (6) is provided in the mounting groove (5). The screw rod (6) is rotatably connected to the side limit plate (3). One side of the clamping guide plate (4) is slidably adapted in the mounting groove (5). The clamping guide plate (4) is threadedly mounted on the screw rod (6).

3. A feeding and conveying device for specimen tensile test according to claim 2, characterized in that: A main shaft (7) is rotatably arranged at the bottom of the conveying seat (1), and both ends of the main shaft (7) are sleeved with driving pulleys (8). One end of the screw rod (6) passes through the side limit plate (3) and is connected to a driven pulley (9). The driving pulley (8) is connected to the driven pulley (9) through a synchronous belt (10). A motor (11) is installed at the bottom of the conveying seat (1), and the output shaft of the motor (11) is connected to a driving gear (12). A driven gear (13) is sleeved on the main shaft (7), and the driven gear (13) meshes with the driving gear (12).

4. A feeding and conveying device for specimen tensile test according to claim 3, characterized in that: The end surface of the clamping guide plate (4) close to the specimen conveying channel is in an outwardly convex arc shape.

5. The feeding and conveying device for specimen tensile test according to claim 1, characterized in that: A pushing cylinder (14) is installed at one end of the conveying seat (1) in the length direction, and the telescopic shaft of the pushing cylinder (14) is connected to the pushing plate (2).

6. A feeding and conveying device for specimen tensile test according to claim 1, characterized in that: A regular baffle (15) is provided at one end of the conveying seat (1) away from the push plate (2), and the regular baffle (15) has the freedom to move along the height direction of the conveying seat (1).

7. A feeding and conveying device for specimen tensile test according to claim 6, characterized in that: A cylinder (16) is vertically mounted at the bottom of the conveying seat (1), and the bottom of the regular baffle (15) passes through the conveying seat (1) and is connected to the telescopic shaft of the cylinder (16).

8. A feeding and conveying device for specimen tensile test according to claim 7, characterized in that: The end surface of the regular baffle (15) close to the specimen conveying channel and the end surface of the push plate (2) close to the specimen conveying channel are both rotatably provided with a plurality of rollers (17), the plurality of rollers (17) are arranged at equal intervals along the width direction of the conveying seat (1), and the axes of the rollers (17) are arranged vertically.

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