CN218481321U

CN218481321U - Clamping device of large-tonnage hydraulic tension testing machine

Info

Publication number: CN218481321U
Application number: CN202222078799.9U
Authority: CN
Inventors: 孟凡超
Original assignee: Zhejiang Dyna Automation Technology Co ltd
Current assignee: Zhejiang Dyna Automation Technology Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2023-02-14
Anticipated expiration: 2032-08-09

Abstract

The utility model relates to a tensile test technical field discloses a large-tonnage hydraulic tension test machine clamping device, the on-line screen storage device comprises a base, the upper surface symmetry of base is provided with two fixing bases, two the upper surface of fixing base all is provided with first motor, the spout has all been seted up to the inside left and right sides of fixing base, the utility model discloses a suitable position can be adjusted to splint to first motor, rolling lead screw, movable block, through the height of adjusting splint, sample that the centre gripping that can be better tested, according to the length of sample adjustment splint's height accurate many times, convenient to use has improved experimental efficiency, through second motor, screw lead screw, support frame, can adjust the interval between two splint, controls two splint and is close to, and then fixes the sample, through fixing bolt for fixing bolt is fixed with the base, thereby makes the centre gripping case fix in the top of base, makes clamping device more firm, has higher adaptability.

Description

Clamping device of large-tonnage hydraulic tension testing machine

Technical Field

The utility model relates to a tensile test technical field specifically is a large-tonnage hydraulic pressure tensile testing machine clamping device.

Background

The tensile testing machine is a mechanical stress application instrument for mechanical property tests such as static load, tension, compression, bending, shearing, tearing, peeling and the like of instruments and equipment for various materials, a clamp of the tensile testing machine is used as an important component of the instrument, different materials need different clamps, and the clamp is also an important factor for smooth test and high test result accuracy.

Chinese patent discloses a clamping device and a tensile machine anchor clamps (grant publication No. CN 111855390A), this patent technology is through clamping piece seat and clamping piece wedge structure sliding connection, when the article receives the pulling force, clamping piece seat and clamping piece relative slip, the clamping piece slides and makes the clamping piece be close to each other and make article centre gripping tighter, avoided the pulling force to cause the article break away from the centre gripping unstability that causes greatly, the stability of centre gripping has been increased, the pulling dynamics is bigger, the more stable of centre gripping, moreover, the steam generator is simple in structure, and convenient for operation, high applicability, the centre gripping is stable, and the promotion and implementation are convenient, but it can not adjust the height of clamping device centre gripping, there is certain limitation in practical application, the efficiency is lower, therefore, technical personnel in the field provide a large-tonnage hydraulic tension tester clamping device, in order to solve the problem that proposes in the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-tonnage hydraulic tension test machine clamping device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a large-tonnage hydraulic tension testing machine clamping device, includes the base, the upper surface symmetry of base is provided with two fixing bases, two the upper surface of fixing base all is provided with first motor, the spout has all been seted up to the inside left and right sides of fixing base, be provided with guide bar and roll lead screw between the inboard of fixing base, the outside of guide bar and roll lead screw is provided with the movable block jointly, one side fixedly connected with centre gripping case of movable block, the upper end of centre gripping case all is provided with two fixing bolt, the inside of centre gripping case is provided with the second motor, the inboard right side that is located the second motor of centre gripping case all is provided with four circular knots, the output of second motor is connected with the screw thread lead screw, the outside of screw thread lead screw is provided with the support frame, one side that the support frame runs through the centre gripping case is provided with splint, one side of splint all sets up four connecting rods, the connecting rod runs through centre gripping case and circular knot swing joint.

As the utility model discloses further scheme again: the upper end of the rolling screw rod is connected with the output end of the first motor, the lower end of the rolling screw rod is provided with a bearing seat, and the bearing seat is fixedly arranged at the upper end of the base.

As a further aspect of the present invention: the two guide rods are positioned on the left side and the right side of the rolling screw rod, and the two guide rods and the rolling screw rod are positioned on the same horizontal line.

As a further aspect of the present invention: the guide rod and the rolling lead screw penetrate through the movable block to be connected with the bottom end of the interior of the fixed seat, and the sliding groove is connected with the movable block in a sliding mode.

As a further aspect of the present invention: one end of the fixing bolt penetrates through the clamping box to be in threaded connection with the base, a nut pair is arranged on the inner side of the supporting frame, and the nut pair is in meshed connection with the threaded screw rod.

As a further aspect of the present invention: the four connecting rods are positioned above and below the threaded screw rod, and the four connecting rods and the rolling screw rod are positioned on the same horizontal line.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a suitable position can be adjusted with splint to first motor, ball screw, movable block, through the height of adjusting splint, sample that centre gripping that can be better tested, according to the length of sample height of adjusting splint accurate many times, convenient to use has improved test efficiency.

2. The utility model discloses an interval between two splint can be adjusted to second motor, screw lead screw, support frame, controls two splint and is close to, and then fixes the sample, through fixing bolt for fixing bolt is fixed with the base, thereby makes the centre gripping case fix in the top of base, makes clamping device more firm, and the sample of fixed residence test that can be better has higher adaptability.

Drawings

FIG. 1 is a schematic structural diagram of a clamping device of a large-tonnage hydraulic tensile testing machine;

FIG. 2 is a schematic structural view of a clamping box in a clamping device of a large-tonnage hydraulic tensile testing machine;

FIG. 3 is a schematic view of a sliding groove structure in a clamping device of a large-tonnage hydraulic tensile testing machine;

FIG. 4 is a schematic view of a fixing bolt structure in a clamping device of a large-tonnage hydraulic tensile testing machine.

In the figure: 1. a base; 2. a fixed seat; 3. a clamping box; 4. a moving block; 5. a splint; 6. a guide rod; 7. a rolling screw rod; 8. a chute; 9. a first motor; 10. a threaded lead screw; 11. a connecting rod; 12. fixing the bolt; 13. a second motor; 14. a round buckle; 15. a support frame.

Detailed Description

Please refer to fig. 1-4, the embodiment of the utility model provides an in, a large-tonnage hydraulic tension testing machine clamping device, including base 1, the upper surface symmetry of base 1 is provided with two fixing bases 2, the upper surface of two fixing bases 2 all is provided with first motor 9, spout 8 has all been seted up to the inside left and right sides of fixing base 2, spout 8 can make the movable block slide from top to bottom at fixing base 2, be provided with guide bar 6 and ball screw 7 between the inboard of fixing base 2, the outside of guide bar 6 and ball screw 7 is provided with movable block 4 jointly, one side fixedly connected with centre gripping case 3 of movable block 4, the upper end of centre gripping case 3 all is provided with two fixing bolt 12, the inside of centre gripping case 3 is provided with second motor 13, the inboard right side that is located second motor 13 of centre gripping case 3 all is provided with four circular buckles 14, the output of second motor 13 is connected with screw 10, the outside of screw 10 is provided with support frame 15, the inboard of support frame 15 is provided with the nut pair, the nut pair meshes with screw 10 with and is connected, one side that support frame 15 runs through centre gripping case 3 is provided with splint 5, one side of splint 5 all sets up four connecting rods 11, connecting rod 11 runs through centre gripping case and circular knot 14 swing joint.

In fig. 1, the upper end of the ball screw 7 is connected with the output end of the first motor 9, the bearing seat is installed at the lower end of the ball screw 7, the bearing seat is fixedly installed at the upper end of the base 1, the two guide rods 6 are located at the left side and the right side of the ball screw 7, the two guide rods 6 and the ball screw 7 are located on the same horizontal line, the guide rods 6 and the ball screw 7 penetrate through the movable block 4 and are connected with the inner bottom end of the fixed seat 2, the sliding groove 8 is connected with the movable block 4 in a sliding manner, the ball screw 7 is controlled to rotate through the first motor 9, the ball screw 7 rotates to drive the movable block 4, so that the movable block 4 slides up and down along the guide rods 6, and the clamping plate 5 can be adjusted to a proper position.

In fig. 1 and 4, one end of a fixing bolt 12 penetrates through the clamping box 3 to be in threaded connection with the base 1, and is fixed with the base 1 through the fixing bolt 12, so that the clamping box 3 is fixed above the base 1, the clamping device is firmer, and a test sample can be better fixed.

In fig. 1 and 2, four connecting rods 11 are located above and below the threaded screw rod 10, the four connecting rods 11 and the rolling screw rod 7 are located on the same horizontal line, and the threaded screw rod 10 is driven to rotate by the second motor 13, so that the clamping plate 5 can horizontally move along the connecting rods 11.

The utility model discloses a theory of operation:

firstly, when using this large-tonnage hydraulic tension tester holder, if the clamping position is not good, at first anticlockwise rotation fixing bolt 12, make fixing bolt 12 and base 1 separation, restart first motor 9, control ball screw 7 through first motor 9 and rotate, ball screw 7 rotates and drives movable block 4, thereby make movable block 4 slide from top to bottom in fixing base 2, can adjust splint 5 to suitable position, through the height that adjusts splint 5, and then the sample that better centre gripping was tested, according to the length of sample a lot of accurate adjustment splint 5's height, after the altitude mixture control is accomplished, clockwise rotation fixing bolt 12 once more, make fixing bolt 12 and base 1 fixed together, and the efficiency of the test is improved.

Secondly, when the large-tonnage hydraulic tensile testing machine clamping tool is used, the second motor 13 is started firstly, the second motor drives the threaded screw rod 10 to rotate, the threaded screw rod 10 rotates to drive the supporting frame 15 to move, so that the distance between the clamping plates 5 is adjusted to the distance just enough for placing a sample chuck, then the sample chuck is placed between the two clamping plates 5, the second motor 13 is controlled to control the two clamping plates 5 to be close to clamp parts, the sample is fixed, the fixing bolt 12 is screwed, the fixing bolt 12 is fixed with the base 1, so that the clamping box 3 is fixed above the base 1, the clamping device is firmer, the tested sample can be better fixed, and the large-tonnage hydraulic tensile testing machine clamping tool has higher adaptability.

In the description of the present invention, it is to be understood that the terms "front and back", "left and right", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or parts referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Of course, in this disclosure, those skilled in the art will understand that the terms "a" and "an" should be interpreted as "at least one" or "one or more," i.e., in one embodiment, a number of an element may be one, and in another embodiment, a number of the element may be plural, and the terms "a" and "an" should not be interpreted as limiting the number.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art under the technical suggestion of the present invention should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A clamping device of a large-tonnage hydraulic tension tester comprises a base (1), the upper surface of the base (1) is symmetrically provided with two fixed seats (2), the upper surfaces of the two fixed seats (2) are respectively provided with a first motor (9), the left side and the right side of the inner part of the fixed seat (2) are both provided with sliding chutes (8), it is characterized in that a guide rod (6) and a rolling screw rod (7) are arranged between the inner sides of the fixed seats (2), a moving block (4) is arranged outside the guide rod (6) and the rolling screw rod (7) together, one side of the moving block (4) is fixedly connected with a clamping box (3), the upper ends of the clamping boxes (3) are respectively provided with two fixing bolts (12), a second motor (13) is arranged in the clamping box (3), the inner side of the clamping box (3) is provided with four round buckles (14) on the right side of the second motor (13), the output end of the second motor (13) is connected with a threaded screw rod (10), a support frame (15) is arranged on the outer side of the threaded screw rod (10), a clamping plate (5) is arranged on one side of the supporting frame (15) penetrating through the clamping box (3), one side of the clamping plate (5) is provided with four connecting rods (11), the connecting rod (11) penetrates through the clamping box (3) and is movably connected with the round buckle (14).

2. The clamping device of the large-tonnage hydraulic tensile testing machine according to claim 1, wherein the upper end of the rolling screw rod (7) is connected with the output end of the first motor (9), the lower end of the rolling screw rod (7) is provided with a bearing seat, and the bearing seat is fixedly arranged at the upper end of the base (1).

3. The clamping device for the large-tonnage hydraulic tensile testing machine according to claim 1, wherein the two guide rods (6) are positioned on the left and right sides of the rolling screw rod (7), and the two guide rods (6) and the rolling screw rod (7) are positioned on the same horizontal line.

4. The clamping device of the large-tonnage hydraulic tensile testing machine according to claim 1, wherein the guide rod (6) and the ball screw (7) penetrate through the movable block (4) and are connected with the inner bottom end of the fixed seat (2), and the sliding groove (8) is connected with the movable block (4) in a sliding manner.

5. The clamping device of the large-tonnage hydraulic tensile testing machine according to claim 1, wherein one end of the fixing bolt (12) penetrates through the clamping box (3) and is in threaded connection with the base (1), and a nut pair is arranged on the inner side of the supporting frame (15) and is in meshed connection with the threaded screw rod (10).

6. The clamping device of the large-tonnage hydraulic tensile testing machine according to claim 1, wherein the four connecting rods (11) are positioned above and below the threaded screw rod (10), and the four connecting rods (11) and the rolling screw rod (7) are positioned on the same horizontal line.