Movable cross beam clamp of horizontal tension testing machine

Abstract

The utility model discloses a movable cross beam clamp of a horizontal tension tester, and relates to the technical field of tension testers. The clamp comprises a clamp body, the clamp body comprises a fixing shell, a containing shell is fixed to the top of the fixing shell, a through hole is formed in the surface of the containing shell, an adjusting rod penetrates through the through hole, an adjusting block is fixed to one end of the adjusting rod, positioning plates are fixed to the two sides of the adjusting block, a positioning rod is fixed between the two positioning plates, and lengthening plates are fixed to the two sides of the fixing shell. Adjusting grooves are formed in the surfaces of the lengthening plates, and adjusting shells are movably connected to the outer sides of the lengthening plates. Under the action of the clamp body, tension experiment materials with different thicknesses and specifications can be conveniently clamped through the clamping plates with the space capable of being flexibly adjusted, meanwhile, the multiple reinforcing strips are fixed to the inner sides of the clamping plates, friction force between the clamping plates and the experiment materials can be greatly increased, meanwhile, the clamping plates are arranged to be detachable, and the clamping plates are convenient to use. And the clamping plates can be conveniently replaced in time after the reinforcing strips are aged.

Description

Technical Field

[0001] The utility model belongs to the technical field of tension testing machines, in particular to a movable crossbeam clamp of a horizontal tension testing machine. Background Art

[0002] The horizontal tensile testing machine is a conventional testing equipment, which is commonly used in the current material mechanics test. Conventional horizontal tensile testing machines usually require the testing machine hydraulic chuck to clamp the test workpiece. The horizontal tensile testing machine is mainly used for tensile testing of materials such as cables, optical cables, and submarine cables. Since the stroke of the cylinder pull rod of the tensile testing machine is limited, according to the different length styles, it is necessary to select the corresponding position of the mobile beam fixture to be fixed on the horizontal tensile testing machine. There are a pair of pins at both ends of the mobile beam fixture, which are inserted into the fixing holes on the side wall of the horizontal tensile testing machine to complete the fixing of the mobile beam fixture.

[0003] This traditional clamp has a weak clamping force, and the two ends of the test material are prone to loosening during the tensile test, resulting in low test efficiency and errors in the test results, affecting the overall working efficiency of the testing machine. Utility Model Content

[0004] The utility model aims to provide a movable crossbeam clamp for a horizontal tensile testing machine. Through the action of the clamp body, the device can conveniently clamp tensile test materials of different thicknesses and specifications through clamps with flexibly adjustable spacing, and at the same time, a plurality of reinforcement strips are fixed on the inner side of the clamp, which can greatly increase the friction between the clamp and the test material. At the same time, the clamp is set to be detachable, which is convenient for timely replacement of the clamp after aging of the reinforcement strip, thereby solving the problem that the existing clamp has a small clamping force and the two ends of the test material are prone to loosening during the tensile test, thereby resulting in low test efficiency, errors in the test results, and affecting the working efficiency of the overall test machine.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A movable crossbeam fixture of a horizontal tensile testing machine, comprising a fixture body, wherein the fixture body comprises a fixed shell;

[0007] A placement shell is fixed on the top of the fixed shell, a through hole is opened on the surface of the placement shell, an adjustment rod runs through the through hole, and an adjustment block is fixed on one end of the adjustment rod;

[0008] Positioning plates are fixed on both sides of the adjustment block, and a positioning rod is fixed between the two positioning plates;

[0009] Extension plates are fixed on both sides of the fixed shell, and adjustment grooves are opened on the surfaces of the extension plates;

[0010] The outer side of the extension plate is movably connected to an adjustment shell, both sides of the inner wall of the adjustment shell are fixed with limit rods, and one end of the limit rod is fixed with a limit plate;

[0011] A movable plate is fixed at the bottom of the adjusting shell, a support plate is fixed on one side of the movable plate, and a fixing rod is fixed between the two support plates;

[0012] The outer side of the fixing rod is rotatably connected to a connecting plate, one end of the connecting plate is provided with a first limiting hole, and the end of the connecting plate away from the first limiting hole is provided with a second limiting hole;

[0013] The positioning rod passes through the first limiting hole, and the fixing rod passes through the second limiting hole;

[0014] A first mounting plate is fixed at the bottom of the movable plate, a second mounting plate is movably connected to the bottom of the first mounting plate, and a clamping plate is fixed at one side of the second mounting plate.

[0015] The utility model is further configured as follows: the limit rod passes through the adjustment slot, and the diameter of the limit plate is greater than the width of the adjustment slot.

[0016] The utility model is further configured as follows: threaded holes are provided on the surfaces of the first mounting plate and the second mounting plate, and bolts are threadedly connected inside the threaded holes.

[0017] The utility model is further configured as follows: a limiting strip is fixed on the surface of the first mounting plate, and a limiting groove is opened on the surface of the second mounting plate;

[0018] The limiting strip matches the limiting groove.

[0019] The utility model is further configured as follows: a plurality of reinforcement strips are fixed on one side of the clamping plate, and the reinforcement strips are made of rubber material.

[0020] The utility model is further configured as follows: a connecting rod is fixed to the outside of the placement shell, and a hydraulic cylinder is fixed to one end of the connecting rod;

[0021] The hydraulic cylinder output shaft is fixedly connected to one end of the adjusting rod;

[0022] A support rod is fixed to the outside of the hydraulic cylinder, and a first bearing is fixed to one end of the support rod;

[0023] A threaded tube is fixed to the inner ring of the first bearing, and a threaded rod is threadedly connected inside the threaded tube;

[0024] A rotating rod is fixed at one end of the threaded rod, a second bearing is fixed at one end of the rotating rod, and a housing is fixed at the outer ring of the second bearing;

[0025] A partition is fixed inside the shell, motors are fixed on both sides of the partition, and the output shaft of the motor is fixedly connected to one end of the threaded rod.

[0026] The utility model is further configured as follows: a positioning groove is provided on one side of the housing, and a positioning block is fixed on the outer side of the hydraulic cylinder;

[0027] The positioning block is slidably connected to the positioning groove.

[0028] The utility model has the following beneficial effects:

[0029] 1. The utility model uses the clamp body to clamp the tensile test materials of different thicknesses and specifications through the splints with flexibly adjustable spacing. At the same time, a number of reinforcement strips are fixed on the inner side of the splints, which can greatly increase the friction between the splints and the test materials. At the same time, the splints are detachable, which is convenient for timely replacement of the splints after aging of the reinforcement strips.

[0030] 2. The utility model uses the threaded rod to tighten the tensile test material clamped by the clamp body when the clamp bodies at both ends move toward the two ends respectively. The device can flexibly adjust the tension of the tensile test material, making it convenient for the staff to quickly collect the test data.

[0031] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 The utility model is a schematic diagram of the structure of a movable crossbeam clamp of a horizontal tensile testing machine.

[0034] Figure 2 For the utility model Figure 1 A partial enlarged view of point A in the middle.

[0035] Figure 3 It is a schematic diagram of the rear view structure of the shell of the utility model.

[0036] Figure 4 It is a schematic diagram of the side view structure of the utility model.

[0037] Figure 5 For the utility model Figure 4 A partial enlarged view of point B in the middle.

[0038] Figure 6It is a schematic diagram of the disassembly structure of the clamp body of the utility model.

[0039] Figure 7 For the utility model Figure 6 A partial enlarged view of point C in the middle.

[0040] Figure 8 It is a schematic diagram of the movable plate structure of the utility model.

[0041] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0042] 1-clamp body, 2-fixed shell, 3-placing shell, 4-through hole, 5-adjusting rod, 6-adjusting block, 7-positioning plate, 8-positioning rod, 9-extension plate, 10-adjusting slot, 11-adjusting shell, 12-limiting rod, 13-limiting plate, 14-movable plate, 15-support plate, 16-fixed rod, 17-connecting plate, 18-first limiting hole, 19-second limiting hole, 20-first mounting plate, 21-second mounting plate, 22-clamping plate, 23-threaded hole, 24-bolt, 25-limiting strip, 26-limiting slot, 27-reinforcement strip, 28-connecting rod, 29-hydraulic cylinder, 30-support rod, 31-first bearing, 32-threaded pipe, 33-threaded rod, 34-rotating rod, 35-second bearing, 36-housing, 37-partition, 38-motor, 39-positioning slot, 40-positioning block. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0045] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention. Specific embodiment 1

[0047] See also Figure 1-8 , the utility model is a , comprising a clamp body 1, the clamp body 1 comprising a fixing shell 2;

[0048] A placement shell 3 is fixed on the top of the fixed shell 2, a through hole 4 is opened on the surface of the placement shell 3, an adjustment rod 5 runs through the through hole 4, and an adjustment block 6 is fixed at one end of the adjustment rod 5;

[0049] Positioning plates 7 are fixed on both sides of the adjustment block 6, and a positioning rod 8 is fixed between the two positioning plates 7;

[0050] Extension plates 9 are fixed on both sides of the fixed shell 2, and adjustment grooves 10 are opened on the surface of the extension plates 9;

[0051] The outer side of the extension plate 9 is movably connected with an adjustment shell 11, and both sides of the inner wall of the adjustment shell 11 are fixed with a limit rod 12, and one end of the limit rod 12 is fixed with a limit plate 13;

[0052] A movable plate 14 is fixed to the bottom of the adjustment housing 11, a support plate 15 is fixed to one side of the movable plate 14, and a fixing rod 16 is fixed between the two support plates 15;

[0053] A connecting plate 17 is rotatably connected to the outer side of the fixing rod 16. A first limiting hole 18 is formed at one end of the connecting plate 17, and a second limiting hole 19 is formed at the end of the connecting plate 17 away from the first limiting hole 18.

[0054] The positioning rod 8 passes through the first limiting hole 18, and the fixing rod 16 passes through the second limiting hole 19;

[0055] A first mounting plate 20 is fixed at the bottom of the movable plate 14 . A second mounting plate 21 is movably connected to the bottom of the first mounting plate 20 . A clamping plate 22 is fixed at one side of the second mounting plate 21 .

[0056] Specifically, the limiting rod 12 passes through the adjustment slot 10, and the diameter of the limiting plate 13 is greater than the width of the adjustment slot 10;

[0057] The first mounting plate 20 and the second mounting plate 21 are both provided with threaded holes 23 , and bolts 24 are threadedly connected inside the threaded holes 23 .

[0058] Furthermore, a limiting strip 25 is fixed on the surface of the first mounting plate 20, and a limiting groove 26 is opened on the surface of the second mounting plate 21;

[0059] The limiting strip 25 matches the limiting groove 26;

[0060] A plurality of reinforcement strips 27 are fixed to one side of the clamping plate 22 , and the reinforcement strips 27 are made of rubber material.

[0061] The operation process of this embodiment is as follows: when the utility model is in use, if it is necessary to clamp the tensile test material, the two ends of the test material can be placed between the two opposite clamping plates 22 respectively, and the hydraulic cylinder 29 is turned on. The output shaft of the hydraulic cylinder 29 drives the adjusting rod 5 at one end thereof to move upward, and the adjusting block 6 at one end of the adjusting rod moves upward accordingly. When the adjusting block 6 moves upward, the positioning plates 7 and the positioning rods 8 on both sides thereof drive the connecting plate 17 to move upward. When the connecting plate 17 moves, the other end thereof drives the fixing rod 16 to move, and the fixing rod 16 drives its supporting plate 15 and the movable plate 14 to move toward the center of the fixed shell 2. At the same time, the adjusting shell 11 is driven to move toward the center of the fixed shell 2. At this time, the limiting rod 12 on the inner wall of the adjusting shell 11 slides in the adjusting groove 10, so that the clamping plates 22 at both ends can slide toward the center until one end of the test material to be tested is clamped. The device can conveniently clamp tensile test materials of different thicknesses and specifications through the clamping plates 22 with flexible adjustable spacing. At the same time, a number of reinforcement strips 27 are fixed on the inner side of the clamping plates 22, which can greatly increase the friction between the clamping plates 22 and the test materials. At the same time, the clamping plates 22 are set to be detachable, which is convenient for timely replacement of the clamping plates 22 after the reinforcement strips 27 are aged. Specific embodiment 2

[0063] See also Figure 1-4 , on the basis of the specific embodiment 1, a connecting rod 28 is fixed to the outside of the placement shell 3, and a hydraulic cylinder 29 is fixed to one end of the connecting rod 28;

[0064] The output shaft of the hydraulic cylinder 29 is fixedly connected to one end of the adjusting rod 5;

[0065] A support rod 30 is fixed to the outside of the hydraulic cylinder 29, and a first bearing 31 is fixed to one end of the support rod 30;

[0066] A threaded tube 32 is fixed to the inner ring of the first bearing 31, and a threaded rod 33 is threadedly connected to the inner part of the threaded tube 32;

[0067] A rotating rod 34 is fixed to one end of the threaded rod 33, a second bearing 35 is fixed to one end of the rotating rod 34, and a housing 36 is fixed to the outer ring of the second bearing 35;

[0068] A partition 37 is fixed inside the housing 36 , and motors 38 are fixed on both sides of the partition 37 . The output shaft of the motor 38 is fixedly connected to one end of the threaded rod 33 .

[0069] Specifically, a positioning groove 39 is opened on one side of the housing 36, and a positioning block 40 is fixed on the outer side of the hydraulic cylinder 29;

[0070] The positioning block 40 is slidably connected to the positioning groove 39 .

[0071] The operation process of this embodiment is as follows: when in use, if the tensile test material needs to be tightened, the corresponding motor 38 can be turned on, and the output shaft of the motor 38 drives the threaded rod 33 at one end thereof to rotate. When the threaded rod 33 rotates, the threaded tube 32 on the outside thereof is driven to rotate, and the threaded tube 32 moves on the outer circle of the threaded rod 33, and at the same time drives the clamp body 1 to move on the outside of the threaded rod 33 through transmission. When the clamp bodies 1 at both ends move toward the two ends respectively, the tensile test material clamped by the clamp body 1 can be tensioned. The device can flexibly adjust the tensioning degree of the tensile test material, which is convenient for the staff to quickly collect the experimental data.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A movable crossbeam fixture for a horizontal tensile testing machine, characterized in that: It comprises a clamp body (1), wherein the clamp body (1) comprises a fixing shell (2); A placement shell (3) is fixed on the top of the fixed shell (2), a through hole (4) is opened on the surface of the placement shell (3), an adjustment rod (5) passes through the inside of the through hole (4), and an adjustment block (6) is fixed to one end of the adjustment rod (5); Positioning plates (7) are fixed on both sides of the adjustment block (6), and a positioning rod (8) is fixed between the two positioning plates (7); Extension plates (9) are fixed on both sides of the fixed shell (2), and adjustment grooves (10) are formed on the surfaces of the extension plates (9); The outer side of the extension plate (9) is movably connected to an adjustment shell (11), both sides of the inner wall of the adjustment shell (11) are fixed with limit rods (12), and one end of the limit rod (12) is fixed with a limit plate (13); A movable plate (14) is fixed to the bottom of the adjustment shell (11), a support plate (15) is fixed to one side of the movable plate (14), and a fixing rod (16) is fixed between the two support plates (15); The outer side of the fixing rod (16) is rotatably connected to a connecting plate (17), one end of the connecting plate (17) is provided with a first limiting hole (18), and the end of the connecting plate (17) away from the first limiting hole (18) is provided with a second limiting hole (19); The positioning rod (8) passes through the first limiting hole (18), and the fixing rod (16) passes through the second limiting hole (19); A first mounting plate (20) is fixed to the bottom of the movable plate (14); a second mounting plate (21) is movably connected to the bottom of the first mounting plate (20); and a clamping plate (22) is fixed to one side of the second mounting plate (21).

2. The movable crossbeam fixture of a horizontal tensile testing machine according to claim 1, characterized in that: The limiting rod (12) passes through the adjusting groove (10), and the diameter of the limiting plate (13) is greater than the width of the adjusting groove (10).

3. The movable crossbeam fixture of a horizontal tensile testing machine according to claim 1, characterized in that: The surfaces of the first mounting plate (20) and the second mounting plate (21) are both provided with threaded holes (23), and bolts (24) are threadedly connected inside the threaded holes (23).

4. The movable crossbeam fixture of a horizontal tensile testing machine according to claim 1, characterized in that: A limiting strip (25) is fixed on the surface of the first mounting plate (20), and a limiting groove (26) is provided on the surface of the second mounting plate (21); The limiting strip (25) matches the limiting groove (26).

5. The movable crossbeam fixture of a horizontal tensile testing machine according to claim 1, characterized in that: A plurality of reinforcement strips (27) are fixed to one side of the clamping plate (22), and the reinforcement strips (27) are made of rubber material.

6. The movable crossbeam fixture of a horizontal tensile testing machine according to claim 1, characterized in that: A connecting rod (28) is fixed on the outside of the placement shell (3), and a hydraulic cylinder (29) is fixed on one end of the connecting rod (28); The output shaft of the hydraulic cylinder (29) is fixedly connected to one end of the adjusting rod (5); A support rod (30) is fixed on the outside of the hydraulic cylinder (29), and a first bearing (31) is fixed on one end of the support rod (30); A threaded tube (32) is fixed to the inner ring of the first bearing (31), and a threaded rod (33) is threadedly connected inside the threaded tube (32); A rotating rod (34) is fixed to one end of the threaded rod (33), a second bearing (35) is fixed to one end of the rotating rod (34), and a housing (36) is fixed to the outer ring of the second bearing (35); A partition (37) is fixed inside the shell (36), and motors (38) are fixed on both sides of the partition (37). The output shaft of the motor (38) is fixedly connected to one end of the threaded rod (33).

7. The movable crossbeam fixture of a horizontal tensile testing machine according to claim 6, characterized in that: A positioning groove (39) is formed on one side of the housing (36), and a positioning block (40) is fixed on the outer side of the hydraulic cylinder (29); The positioning block (40) is slidably connected to the positioning groove (39).

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