Auxiliary installation device for wedge-shaped clamp of testing machine and testing machine

Abstract

The embodiment of the present invention provides an auxiliary installation device for a wedge-shaped clamp of a testing machine and a testing machine, and relates to the technical field of testing devices. The auxiliary installation device for a wedge-shaped clamp of a testing machine and the testing machine include a base, a slide rail, a support plate and two positioning devices; the base is used to be arranged on the lower clamp of the testing machine, and the slide rail is arranged on the base; the support plate is used to carry a pad and a clamp body, and the pad and the clamp body are slidably matched with the slide rail to send the pad and the clamp body into or out of the upper clamp of the testing machine; the two positioning devices are both arranged on the support plate, and are used to position the pad and the clamp body respectively, which can facilitate the disassembly and assembly of the clamp body and the pad to reduce safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of testing devices, and in particular to an auxiliary installation device for a wedge-shaped clamp of a testing machine and a testing machine. Background Art

[0002] The electro-hydraulic servo testing machine is mainly used for static tests on physical properties such as tension, compression, and bending of metal materials such as bars, wires, and plates of various specifications and shapes. However, after multiple tensile tests, the upper and lower wedge-shaped tensile clamps of the electro-hydraulic servo testing machine are worn, and the friction surfaces have scratches, scratches, and deformations. During the test, the clamps are unstable, and the sample slips and falls out.

[0003] Especially during daily maintenance of the wedge-shaped tensile clamp and pad, because the clamp and pad are located on both sides of the wedge mouth, the clamp and pad are relatively heavy during the disassembly process, and it is easy to fall to the ground and even endanger personal safety due to the instability of the clamp. During installation, you must hold it firmly with your hands to prevent it from falling. Improper installation will also have hidden dangers that affect the accuracy of the test data. Summary of the invention

[0004] The purpose of the present invention includes, for example, providing an auxiliary installation device for a wedge-shaped clamp block of a testing machine, which can facilitate the disassembly and assembly of the clamp body and the pad to reduce safety hazards.

[0005] The purpose of the present invention also includes providing a testing machine that can facilitate the disassembly and assembly of the clamping body and the pad to reduce safety hazards.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] An embodiment of the present invention provides an auxiliary installation device for a wedge-shaped clamp of a testing machine, which includes a base, a slide rail, a support plate and two positioning devices;

[0008] The base is used to be arranged on the lower fixture of the testing machine, and the slide rail is arranged on the base;

[0009] The support plate is used to carry the backing plate and the clamp body, and the support plate is slidably matched with the slide rail to send the backing plate and the clamp body into or out of the upper clamp of the testing machine;

[0010] The two positioning devices are both arranged on the supporting plate and are used to position the backing plate and the clamp body respectively.

[0011] Optionally, the positioning device includes a first clamping plate, a second clamping plate, a first driving assembly and a second driving assembly;

[0012] The first driving assembly and the second driving assembly are both arranged on the support plate, and the first clamping plate and the second clamping plate are arranged opposite to each other;

[0013] The first driving assembly is connected to the first clamping plate, and is used to drive the first clamping plate to move toward or away from the second clamping plate, so as to clamp the pad or the clamping body between the first clamping plate and the second clamping plate;

[0014] The second driving assembly is connected to the second clamping plate, and is used for driving the second clamping plate to move toward or away from the first clamping plate, so as to clamp the pad or the clamping body between the first clamping plate and the second clamping plate.

[0015] Optionally, the first driving assembly includes a bidirectional screw, two nuts, two connecting rods and a first driving member;

[0016] The bidirectional screw is rotatably arranged on the supporting plate, and the first driving member is arranged on the supporting plate and connected to the bidirectional screw for driving the bidirectional screw to rotate;

[0017] The two nuts are respectively sleeved on two sections of the bidirectional screw with opposite thread rotation directions, one end of the two connecting rods is respectively hinged to the two nuts one by one, and the other ends of the two connecting rods are hinged to the first clamping plate.

[0018] Optionally, the second driving assembly includes a driving screw and a second driving member, the driving screw is rotatably disposed on the support plate, and the driving screw is threadably engaged with the second clamping plate;

[0019] The second driving member is disposed on the supporting plate and connected to the driving screw rod, and is used for driving the driving screw rod to rotate.

[0020] Optionally, the second clamping plate is obliquely arranged on the supporting plate, and the first clamping plate and the second clamping plate are respectively used to fit with two opposite surfaces of the pad or the clamp body.

[0021] Optionally, it further includes a plurality of support rods, wherein the plurality of support rods are connected between the support plate and the base.

[0022] Optionally, a first spring is provided between the support rod and the base, and a second spring is provided between the support rod and the support plate.

[0023] An embodiment of the present invention further provides a testing machine, comprising an upper fixture, a lower fixture, a backing plate, a fixture body and the above-mentioned auxiliary installation device, wherein the auxiliary installation device is arranged on the lower fixture.

[0024] Optionally, the upper clamp has an abutment surface, and the abutment surface is used to abut against the backing plate and the clamp body when the backing plate and the clamp body are sent into the upper clamp, so as to position the backing plate and the clamp body in a horizontal direction.

[0025] Optionally, a positioning block is provided in the upper clamp, and positioning grooves are provided on the pad plate and the clamp body. When the pad plate and the clamp body are in abutment with the abutment surface, the two ends of the positioning block are respectively engaged with the two positioning grooves of the pad plate and the clamp body to position the pad plate and the clamp body in the vertical direction.

[0026] The beneficial effects of the auxiliary installation device of the wedge-shaped clamp of the testing machine and the testing machine of the embodiment of the present invention include, for example: in the process of installing the pad and the clamp, the base is first set on the lower clamp of the testing machine, and then the pad and the clamp are supported on the pallet, and then the pad and the clamp are respectively positioned by two positioning devices, and then the pallet is pushed to slide on the slide rail, and the pallet sends the pad and the clamp into the upper clamp of the testing machine; in the process of disassembling the pad and the clamp, the base is first set on the lower clamp of the testing machine, and then the pad and the clamp are supported on the pallet, and then the pad and the clamp are respectively positioned by two positioning devices, and then the pallet is pulled to slide in the opposite direction on the slide rail, and the pallet sends the pad and the clamp out of the upper clamp of the testing machine, thereby facilitating the disassembly and assembly of the clamp and the pad, and also reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a schematic diagram of the structure of the auxiliary installation device in the embodiment of the present application;

[0029] Figure 2 This is a schematic diagram for illustrating the first driving component in an embodiment of the present application.

[0030] Icons: 10- auxiliary installation device; 100- base; 200- slide rail; 300- support plate; 310- support; 400- positioning device; 410- first clamping plate; 420- second clamping plate; 430- first drive assembly; 431- bidirectional screw; 432- nut; 433- connecting rod; 440- second drive assembly; 441- drive screw; 500- support rod; 510- first spring; 520- second spring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0036] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0037] The inventor of the present application found that during routine maintenance of the clamp body and the pad, since the clamp body and the pad are located on both sides of the wedge-shaped opening of the clamp on the test machine, the clamp body and the pad are relatively heavy and are easy to fall to the ground and even cause personal injury during disassembly. During installation, they must be held firmly and pressed by hand to prevent them from falling. Improper installation may also affect the accuracy of test data. This embodiment provides a test machine, which is at least used to solve the above technical problems.

[0038] Please refer to Figure 1 , Figure 2This embodiment provides a testing machine, including a relative upper clamp, a lower clamp, a pad, a clamp body (not shown in the figure) and an auxiliary installation device 10 of the wedge-shaped clamp block of the testing machine, and the auxiliary installation device 10 is arranged on the lower clamp.

[0039] When the backing plate and the clamp body need to be disassembled, the auxiliary installation device 10 is set on the lower clamp, which can assist the operator to disassemble the backing plate and the clamp body, reduce safety risks, and improve the convenience of operation.

[0040] Furthermore, the auxiliary installation device 10 includes a base 100, a slide rail 200, a support plate 300 and two positioning devices 400; the base 100 is used to be set on the lower clamp of the testing machine, and the slide rail 200 is set on the base 100; the support plate 300 is used to carry the pad and the clamp body, and the support plate 300 and the slide rail 200 are slidably matched to send the pad and the clamp body into or out of the upper clamp of the testing machine; the two positioning devices 400 are both set on the support plate 300, and are used to position the pad and the clamp body respectively.

[0041] Optionally, the support plate 300 can be a single plate; the support plate 300 can also be composed of multiple plates, which are connected by fasteners to facilitate the installation and removal of the plates. The base 100 and the support plate 300 are both made of stainless steel, which are welded by a steel plate and four rectangular tubes. The number of the slide rails 200 includes two, and the two slide rails 200 are arranged in parallel on the base 100. The slide rails 200 are provided with sliders, and the support plate 300 is connected to the slider to achieve sliding.

[0042] During the installation of the pad and the clamp, the base 100 is first set on the lower clamp of the testing machine, and then the pad and the clamp are supported on the pallet 300, and then the two positioning devices 400 are used to position the pad and the clamp respectively, and then the pallet 300 is pushed to slide on the slide rail 200, and the pallet 300 sends the pad and the clamp into the upper clamp of the testing machine; during the removal of the pad and the clamp, the base 100 is first set on the lower clamp of the testing machine, and then the pad and the clamp are supported on the pallet 300, and then the two positioning devices 400 are used to position the pad and the clamp respectively, and then the pallet 300 is pulled to slide in the opposite direction on the slide rail 200, and the pallet 300 sends the pad and the clamp out of the upper clamp of the testing machine, thereby facilitating the disassembly and assembly of the clamp and the pad, and also reducing safety hazards.

[0043] Furthermore, the positioning device 400 includes a first clamping plate 410, a second clamping plate 420, a first driving assembly 430 and a second driving assembly 440; the first driving assembly 430 and the second driving assembly 440 are both arranged on the support plate 300, and the first clamping plate 410 and the second clamping plate 420 are arranged opposite to each other; the first driving assembly 430 is connected to the first clamping plate 410, and is used to drive the first clamping plate 410 to move toward or away from the second clamping plate 420, so as to clamp the pad or the clamping body between the first clamping plate 410 and the second clamping plate 420; the second driving assembly 440 is connected to the second clamping plate 420, and is used to drive the second clamping plate 420 to move toward or away from the first clamping plate 410, so as to clamp the pad or the clamping body between the first clamping plate 410 and the second clamping plate 420.

[0044] In this embodiment, two positioning devices 400 are symmetrically arranged on the support plate 300, wherein the first clamping plate 410 and the second clamping plate 420 of one positioning device 400 are used to clamp the pad, and the first clamping plate 410 and the second clamping plate 420 of the other positioning device 400 are used to clamp the clamp body.

[0045] When the pad and the clamp are supported on the support plate 300, the pad is placed between the first clamp 410 and the second clamp 420 of one of the positioning devices 400, and the clamp is placed between the first clamp 410 and the second clamp 420 of the other positioning device 400, and then the first drive component 430 is used to drive the first clamp 410 to move toward or away from the second clamp 420, and the second drive component 440 drives the second clamp 420 to move toward or away from the first clamp 410 to adjust the distance between the first clamp 410 and the corresponding second clamp 420 until the pad or the clamp is clamped between the first clamp 410 and the corresponding second clamp 420, so as to position the pad and the clamp and keep them stable.

[0046] Furthermore, the first drive assembly 430 includes a bidirectional screw 431, two nuts 432, two connecting rods 433 and a first drive member (not shown in the figure); the bidirectional screw 431 is rotatably arranged on the support plate 300, and the first drive member is arranged on the support plate 300 and connected to the bidirectional screw 431, and is used to drive the bidirectional screw 431 to rotate; the two nuts 432 are respectively mounted on two sections of the bidirectional screw 431 with opposite thread rotation directions, one end of the two connecting rods 433 is respectively hinged to the two nuts 432 one by one, and the other ends of the two connecting rods 433 are both hinged to the first clamping plate 410.

[0047] In this embodiment, a support 310 is provided on the support plate 300, the length direction of the bidirectional screw 431 is consistent with the length direction of the slide rail 200, and the bidirectional screw 431 is rotatably provided on the support 310, and the first driving member is transmission-connected to the bidirectional screw 431; optionally, the first driving member includes a driving motor, which is connected to the bidirectional screw 431; of course, in other embodiments, the first driving member can also be a driving knob, which is connected to the bidirectional screw 431 to drive the bidirectional screw 431 to rotate.

[0048] When the position of the first clamping plate 410 needs to be adjusted, the first driving member is used to drive the bidirectional screw 431 to rotate, driving the two nuts 432 to move closer to or away from each other, and then driving the first clamping plate 410 to move closer to or away from the second clamping plate 420 through the connecting rod 433.

[0049] Furthermore, the second driving assembly 440 includes a driving screw 441 and a second driving member (not shown in the figure), the driving screw 441 is rotatably disposed on the support plate 300, and the driving screw 441 is threadedly engaged with the second clamping plate 420; the second driving member is disposed on the support plate 300 and connected to the driving screw 441, and is used to drive the driving screw 441 to rotate.

[0050] Optionally, a boss is provided on the side of the second clamping plate 420 , the driving screw 441 extends in the horizontal direction, and the length direction of the driving screw 441 is perpendicular to the length direction of the slide rail 200 , and the driving screw 441 is threadedly engaged with the boss.

[0051] Optionally, the second driving member includes a driving motor connected to the driving screw 441; of course, in other embodiments, the second driving member may also be a driving knob connected to the driving screw 441 to drive the driving screw 441 to rotate.

[0052] When the position of the second clamping plate 420 needs to be adjusted, the second driving member is used to drive the driving screw 441 to rotate, thereby driving the second clamping plate 420 to move toward or away from the first clamping plate 410 .

[0053] In this embodiment, the second clamping plate 420 is obliquely disposed on the support plate 300, and the first clamping plate 410 and the second clamping plate 420 are respectively used to fit with two opposite surfaces of the backing plate or the clamp body.

[0054] It should be pointed out that since the two opposite surfaces of the pad or clamp body are a vertical surface and an inclined surface respectively, the vertical surface is used to fit with the first clamp plate 410, and the inclined surface is used to fit with the second clamp plate 420. By tilting the second clamp plate 420 on the support plate 300, the pad or clamp body can fit better with the first clamp plate 410 and the second clamp plate 420 and have better stability.

[0055] In addition, the auxiliary installation device 10 further includes a plurality of support rods 500, and the plurality of support rods 500 are connected between the support plate 300 and the base 100. A first spring 510 is provided between the support rod 500 and the base 100, and a second spring 520 is provided between the support rod 500 and the support plate 300. Of course, in other embodiments, only one spring may be provided, and the spring may be provided between the support rod 500 and the base 100 or between the support rod 500 and the support plate 300, as long as the buffering effect can be achieved.

[0056] For example, the number of the support rods 500 includes four, and the four support rods 500 are arranged in a rectangular shape between the support plate 300 and the base 100, and the two ends of the support rods 500 are respectively connected to the support plate 300 and the base 100.

[0057] Since the clamp body and the pad are heavy, the first spring 510 and the second spring 520 can provide a certain buffering effect when the clamp body and the pad are supported on the support plate 300, and are not likely to cause damage to the support plate 300.

[0058] Furthermore, the upper clamp has a contact surface, which is used to abut against the backing plate and the clamp body when the backing plate and the clamp body are sent into the upper clamp, so as to position the backing plate and the clamp body in the horizontal direction.

[0059] In this embodiment, the abutting surface is perpendicular to the length direction of the slide rail 200. When the pad and the clamp body are sent into the upper clamp, the abutting surface abuts against the pad and the clamp body, and the pad and the clamp body are horizontally positioned.

[0060] In addition, a positioning block is provided in the upper clamp, and positioning grooves are provided on the pad plate and the clamp body. When the pad plate and the clamp body are in contact with the abutment surface, the two ends of the positioning block are respectively engaged with the two positioning grooves of the pad plate and the clamp body to position the pad plate and the clamp body in the vertical direction.

[0061] In this embodiment, the positioning block is a trapezoidal block. When the pad and the clamp body are in contact with the abutment surface, the two positioning grooves of the pad and the clamp body are engaged with the trapezoidal block, thereby vertically positioning the pad and the clamp body, and the pad and the clamp body are not easy to fall from the upper clamp.

[0062] In summary, the embodiment of the present invention provides an auxiliary installation device 10 for a wedge-shaped clamp of a testing machine and a testing machine. In the process of installing the pad and the clamp body, the base 100 is first set on the lower clamp of the testing machine, and then the pad and the clamp body are supported on the support plate 300, and then the pad and the clamp body are positioned respectively by using two positioning devices 400, and then the support plate 300 is pushed to slide on the slide rail 200, and the support plate 300 sends the pad and the clamp body into the upper clamp of the testing machine; in the process of removing the pad and the clamp body, During the process, the base 100 is first set on the lower fixture of the testing machine, and then the pad and the clamp body are supported on the support plate 300, and then the pad and the clamp body are positioned respectively by two positioning devices 400, and then the support plate 300 is pulled to slide in the opposite direction on the slide rail 200, and the support plate 300 sends the pad and the clamp body out of the upper fixture of the testing machine, which effectively solves the problem that the clamp body and the support plate 300 need to be supported by human palms and are inconvenient for maintenance and operation, and focuses on solving the problem that a single person cannot install, and realizes rapid disassembly and assembly. The design is reasonable, easy to operate, safe and reliable, practical and efficient, with low improvement cost, easy to implement on site, and plays an improvement role in its maintenance similar to the disassembly and assembly of the wedge-shaped tensile fixture of the electro-hydraulic servo testing machine, and has a good reference and application value.

[0063] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An auxiliary installation device for a wedge-shaped clamp of a testing machine, characterized in that: It includes a base, a slide rail, a support plate and two positioning devices; The base is used to be arranged on the lower fixture of the testing machine, and the slide rail is arranged on the base; The support plate is used to carry the backing plate and the clamp body, and the support plate is slidably matched with the slide rail to send the backing plate and the clamp body into or out of the upper clamp of the testing machine; The two positioning devices are both arranged on the support plate and are used to position the backing plate and the clamp body respectively; The positioning device comprises a first clamping plate, a second clamping plate, a first driving assembly and a second driving assembly; The first driving assembly and the second driving assembly are both arranged on the support plate, and the first clamping plate and the second clamping plate are arranged opposite to each other; The first driving assembly is connected to the first clamping plate, and is used to drive the first clamping plate to move toward or away from the second clamping plate, so as to clamp the pad or the clamping body between the first clamping plate and the second clamping plate; The second driving assembly is connected to the second clamping plate, and is used for driving the second clamping plate to move toward or away from the first clamping plate, so as to clamp the pad or the clamping body between the first clamping plate and the second clamping plate.

2. The auxiliary installation device for the wedge-shaped clamp of the testing machine according to claim 1, characterized in that: The first driving assembly includes a bidirectional screw, two nuts, two connecting rods and a first driving member; The bidirectional screw is rotatably arranged on the supporting plate, and the first driving member is arranged on the supporting plate and connected to the bidirectional screw for driving the bidirectional screw to rotate; The two nuts are respectively sleeved on two sections of the bidirectional screw with opposite thread rotation directions, one end of the two connecting rods is respectively hinged to the two nuts one by one, and the other ends of the two connecting rods are hinged to the first clamping plate.

3. The auxiliary installation device for the wedge-shaped clamp of the testing machine according to claim 1, characterized in that: The second driving assembly comprises a driving screw and a second driving member, wherein the driving screw is rotatably disposed on the support plate, and the driving screw is threadably engaged with the second clamping plate; The second driving member is disposed on the supporting plate and connected to the driving screw rod, and is used for driving the driving screw rod to rotate.

4. The auxiliary installation device for the wedge-shaped clamp of the testing machine according to claim 1, characterized in that: The second clamping plate is obliquely arranged on the supporting plate, and the first clamping plate and the second clamping plate are respectively used to fit with two opposite surfaces of the pad or the clamp body.

5. The auxiliary installation device for the wedge-shaped clamp of the testing machine according to claim 1, characterized in that: It also includes a plurality of support rods, which are connected between the support plate and the base.

6. The auxiliary installation device for the wedge-shaped clamp of the testing machine according to claim 5, characterized in that: A first spring is arranged between the support rod and the base, and a second spring is arranged between the support rod and the supporting plate.

7. A testing machine, characterized in that: The invention comprises a relative upper clamp, a lower clamp, a pad, a clamp body and an auxiliary installation device of a wedge-shaped clamp block of a testing machine as described in any one of claims 1 to 6, wherein the auxiliary installation device is arranged on the lower clamp.

8. The testing machine according to claim 7, characterized in that: The upper clamp has a contact surface, and the contact surface is used to contact the backing plate and the clamp body when the backing plate and the clamp body are sent into the upper clamp, so as to position the backing plate and the clamp body in the horizontal direction.

9. The testing machine according to claim 8, characterized in that: A positioning block is provided in the upper clamp, and positioning grooves are provided on the pad plate and the clamp body. When the pad plate and the clamp body are in contact with the abutment surface, the two ends of the positioning block are respectively engaged with the two positioning grooves of the pad plate and the clamp body to position the pad plate and the clamp body in the vertical direction.

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