CN220568551U - Workpiece clamping structure for tensile and compression testing machine - Google Patents
Workpiece clamping structure for tensile and compression testing machine Download PDFInfo
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- CN220568551U CN220568551U CN202322185504.2U CN202322185504U CN220568551U CN 220568551 U CN220568551 U CN 220568551U CN 202322185504 U CN202322185504 U CN 202322185504U CN 220568551 U CN220568551 U CN 220568551U
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000007906 compression Methods 0.000 title claims description 8
- 230000006835 compression Effects 0.000 title description 2
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 description 6
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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Abstract
The utility model provides a workpiece clamping structure for a pulling and pressing test machine, which comprises a pulling and pressing machine clamping clamp, a workpiece positioning fixing disc and a clamping hydraulic cylinder, wherein the clamping hydraulic cylinder is fixedly arranged on the pulling and pressing machine clamping clamp, the output end of the clamping hydraulic cylinder penetrates through the pulling and pressing machine clamping clamp to be fixedly connected with the workpiece positioning fixing disc, and the workpiece positioning fixing disc is arranged at the inner side of the pulling and pressing machine clamping clamp; according to the utility model, the workpiece is only required to be vertically placed above the workpiece positioning and fixing disc, the workpiece positioning and fixing disc is influenced by the gravity of the workpiece, so that a concave area matched with the workpiece positioning and fixing disc can be formed in the workpiece positioning and fixing disc, the cylindrical workpiece and the rectangular workpiece can be positioned, in addition, the positioning and fixing effect of the workpiece can be further improved through suction, the problem that the workpiece is offset or wrong in the workpiece clamping process is avoided, the potential safety hazard is reduced, and the accurate clamping performance is improved.
Description
Technical Field
The utility model belongs to the technical field of clamping of a drawing press, and particularly relates to a workpiece clamping structure for a drawing press testing machine.
Background
The tensile and compressive testing machine is mainly used for testing physical properties of raw materials, finished products and semi-finished products, and can be used for tensile resistance test, compressive resistance test and bending resistance test to obtain testing results and testing data such as elongation, stress, strain and the like. The tensile testing machine can be matched with different clamps, accessories, two-point extenders and loading cells to carry out various tests. Most of clamping tools of the existing tension-compression testing machine adopt a vice and a hydraulic clamp, when a tension-compression test is carried out on a cylindrical workpiece or a rectangular workpiece, a worker is required to support the workpiece first, then the workpiece is clamped and fixed through the vice or the hydraulic clamp, and arms or fingers of the worker are easily clamped in the clamping mode, so that certain potential safety hazards are caused.
Therefore, it is necessary to provide a clamping structure for a tensile and compressive testing machine.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a workpiece clamping structure for a pulling and pressing test machine, which comprises a pulling and pressing machine clamping clamp, a workpiece positioning and fixing disc and a clamping hydraulic cylinder, wherein the clamping hydraulic cylinder is fixedly arranged on the pulling and pressing machine clamping clamp, the output end of the clamping hydraulic cylinder passes through the pulling and pressing machine clamping clamp to be fixedly connected with the workpiece positioning and fixing disc, and the workpiece positioning and fixing disc is arranged at the inner side of the pulling and pressing machine clamping clamp;
the workpiece positioning fixing disc comprises a clamping disc body, a dividing limiting cover, positioning upright posts, a contraction spring, a contraction groove, a fit rubber ring, a negative pressure hole, a negative pressure pipe, a pipe group cavity and a negative pressure main pipe, wherein the clamping disc body is fixedly connected with the output end of a clamping hydraulic cylinder; the upper end of the positioning upright post is fixedly provided with a fit rubber ring, the center of the positioning upright post is provided with a negative pressure hole, the negative pressure hole is communicated with one end of a negative pressure pipe, the other end of the negative pressure pipe penetrates into a pipe group cavity formed by the clamping disc body and is communicated with one end of a negative pressure main pipe, one end of the negative pressure main pipe is communicated with a plurality of negative pressure pipes, and the other end of the negative pressure main pipe is communicated with a negative pressure machine;
the dividing limiting cover is a rectangular cover and is used for protecting the positioning upright post on the inner side.
Preferably, the clamping pliers of the pulling press comprise clamping pliers bodies, clamping bodies, side pressing plates and a fit groove, wherein clamping hydraulic cylinders are fixedly arranged on the lower surface of the clamping pliers bodies, the clamping bodies are slidably arranged on the inner side surfaces of the clamping pliers bodies, two clamping bodies are arranged, the side pressing plates are arranged on the two sides of each clamping body, the side pressing plates are four, and the side pressing plates are fixedly arranged on the clamping pliers bodies; a fitting groove is formed below the inner side of the clamping body, and a clamping disc body is arranged in the fitting groove.
Preferably, symmetrical equilateral trapezoid grooves are formed in the middle of the clamping forceps body, and the clamping body is slidably arranged on the inner side surfaces of the equilateral trapezoid grooves of the clamping forceps body.
Preferably, the positioning upright post is a round upright post, and a fit rubber ring is arranged on the periphery above the negative pressure hole penetrating through the center of the positioning upright post; the negative pressure pipe is a negative pressure type hose.
Compared with the prior art, the utility model has the following beneficial effects:
according to the workpiece positioning and fixing disc, a worker does not need to manually support the workpiece, the workpiece is only required to be vertically placed above the workpiece positioning and fixing disc before the workpiece is clamped, the workpiece positioning and fixing disc is influenced by the gravity of the workpiece, a concave area matched with the workpiece positioning and fixing disc can be formed in the workpiece positioning and fixing disc, the cylindrical workpiece and the rectangular workpiece can be positioned, in addition, the positioning and fixing effect of the workpiece can be further improved through suction, the problem that the workpiece is offset or wrong in the workpiece clamping process is avoided, potential safety hazards are reduced, and meanwhile the accurate clamping performance of the workpiece is improved.
Drawings
Fig. 1 is a schematic view of the assembled structure of the present utility model.
Fig. 2 is a schematic view showing a partial sectional structure of the workpiece positioning and fixing plate of fig. 1 according to the present utility model.
Fig. 3 is a schematic view of a partial enlarged structure at a of fig. 2 according to the present utility model.
In the figure:
the clamping pliers 11 of the drawing press, the clamping pliers 11, the clamping pliers 12, the side pressure plate 13, the engaging grooves 14, the workpiece positioning and fixing disc 2, the clamping disc 21, the dividing limiting cover 22, the positioning upright post 23, the contraction spring 24, the contraction groove 25, the engaging rubber ring 26, the negative pressure hole 27, the negative pressure pipe 28, the pipe group cavity 29, the negative pressure main pipe 210 and the clamping hydraulic cylinder 3.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution of the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
In the description of the embodiments, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 3:
the utility model provides a workpiece clamping structure for a pulling and pressing test machine, which comprises a pulling and pressing machine clamping clamp 1, a workpiece positioning and fixing disc 2 and a clamping hydraulic cylinder 3, wherein the clamping hydraulic cylinder 3 is fixedly arranged on the pulling and pressing machine clamping clamp 1, the output end of the clamping hydraulic cylinder 3 penetrates through the pulling and pressing machine clamping clamp 1 to be fixedly connected with the workpiece positioning and fixing disc 2, the workpiece positioning and fixing disc 2 is arranged on the inner side of the pulling and pressing machine clamping clamp 1, and the clamping hydraulic cylinder 3 pushes the workpiece positioning and fixing disc 2 to drive the pulling and pressing machine clamping clamp 1 to clamp and fix a workpiece, and the pulling and pressing machine clamping clamp 1 is fixedly arranged on the pulling and pressing test machine.
The workpiece positioning and fixing disc 2 comprises a clamping disc body 21, a dividing limiting cover 22, positioning stand columns 23, a shrinkage spring 24, a shrinkage groove 25, a fit rubber ring 26, a negative pressure hole 27, a negative pressure pipe 28, a pipe group cavity 29 and a negative pressure main pipe 210, wherein the clamping disc body 21 is fixedly connected with the output end of the clamping hydraulic cylinder 3, the dividing limiting cover 22 is fixedly arranged on the upper surface of the clamping disc body 21, a plurality of positioning stand columns 23 are arranged on the inner side of the dividing limiting cover 22, the positioning stand columns 23 are slidably arranged in the shrinkage groove 25 and are elastically connected with the shrinkage spring 24 at the bottom of the shrinkage groove 25, and the shrinkage groove 25 is formed in the clamping disc body 21; the upper end fixed mounting of location stand 23 has and fits rubber ring 26, and negative pressure hole 27 has been seted up at location stand 23 center, and negative pressure hole 27 is linked together with the one end of negative pressure pipe 28, and the other end of negative pressure pipe 28 pierces into the nest of tubes chamber 29 that clamp disk body 21 was seted up to be linked together with the one end of negative pressure main pipe 210, the one end of negative pressure main pipe 210 and a plurality of negative pressure pipe 28 homogeneous phase intercommunication, the other end of negative pressure main pipe 210 is linked together with the negative pressure machine, and nest of tubes chamber 29 is used for accomodating negative pressure pipe 28, avoids a plurality of negative pressure pipe 28 to expose the condition that causes the damage or break outward, installs the access hole on the clamp disk body 21.
The dividing limiting cover 22 is a rectangular cover, the dividing limiting cover 22 is used for protecting the positioning upright post 23 on the inner side, and the dividing limiting cover 22 prevents the structure of the clamping pliers 1 of the pulling press from being extruded and damaged to the positioning upright post 23, and prevents the positioning upright post 23 from being clamped.
Embodiment one:
specifically, the clamping pliers 1 of the pulling and pressing machine comprise clamping pliers bodies 11, clamping pliers bodies 12, side pressing plates 13 and engaging grooves 14, wherein a clamping hydraulic cylinder 3 is fixedly arranged on the lower surface of the clamping pliers bodies 11, two clamping pliers bodies 12 are slidably arranged on the inner side surface of the clamping pliers bodies 11, two side pressing plates 13 are arranged on two sides of each clamping pliers body 12, four side pressing plates 13 are arranged, and the side pressing plates 13 are fixedly arranged on the clamping pliers bodies 11; the lower part of the inner side of the clamping body 12 is provided with a fitting groove 14, a clamping disc body 21 is arranged in the fitting groove 14, the clamping body 12 is used for clamping and fixing a workpiece, the inner side of the clamping body 12 is a clamping plane, and a limiting cover 22 is divided to prevent the clamping body 12 from being clamped to a positioning upright post 23 on the inner side of the clamping body.
Specifically, the symmetrical equilateral trapezoid groove is formed in the middle of the clamping pincer body 11, the clamping body 12 is slidably mounted on the inner side surface of the equilateral trapezoid groove of the clamping pincer body 11, the clamping body 12 slides in the equilateral trapezoid groove, a workpiece can be clamped by sliding from bottom to top, and otherwise, the clamped workpiece can be loosened.
Specifically, the positioning upright post 23 is a circular upright post, and a fit rubber ring 26 is arranged on the periphery above a negative pressure hole 27 which is formed in the center of the positioning upright post 23 in a penetrating manner; the negative pressure pipe 28 is a negative pressure type hose.
Embodiment two:
the defects or problems in the prior art are mainly solved by the structure of the workpiece positioning and fixing disc 2: when a workpiece is required to be clamped, the workpiece is vertically placed on the workpiece positioning fixing disc 2 on the inner side of the clamping pliers 1 of the drawing press, at the moment, the positioning upright post 23 contacted with the workpiece is subjected to the gravity of the workpiece, the positioning upright post 23 compresses the contraction spring 24 on the inner side of the contraction groove 25, the positioning upright post 23 is contracted gradually to form a concave area matched with the workpiece, after the workpiece is perfectly matched with the concave area formed by the positioning upright post 23, the negative pressure machine is started, the surface of the workpiece is tightly adsorbed on the positioning upright post 23 through the negative pressure main pipe 210, the negative pressure pipe 28, the clamping rubber ring 26 and the negative pressure hole 27, the workpiece is prevented from being offset or misplaced, after the workpiece is positioned, the clamping hydraulic cylinder 3 is started, the clamping hydraulic cylinder 3 drives the clamping disc body 21 of the workpiece positioning fixing disc 2, the clamping disc body 21 pushes the clamping pliers 12 of the drawing press, and the gap between the clamping bodies 12 is gradually contracted from bottom to top, until the clamping hydraulic cylinder 3 is stopped after the workpiece is clamped and fixed firmly, and the clamping and fixing of the workpiece is completed.
By utilizing the technical scheme of the utility model or under the inspired by the technical scheme of the utility model, a similar technical scheme is designed by a person skilled in the art, so that the technical effects are achieved, and the technical scheme falls into the protection scope of the utility model.
Claims (4)
1. The workpiece clamping structure for the tension-compression testing machine is characterized by comprising a tension-compression machine clamping clamp (1), a workpiece positioning fixing disc (2) and a clamping hydraulic cylinder (3), wherein the clamping hydraulic cylinder (3) is fixedly installed on the tension-compression machine clamping clamp (1), the output end of the clamping hydraulic cylinder (3) penetrates through the tension-compression machine clamping clamp (1) to be fixedly connected with the workpiece positioning fixing disc (2), and the workpiece positioning fixing disc (2) is arranged on the inner side of the tension-compression machine clamping clamp (1);
the workpiece positioning fixing disc (2) comprises a clamping disc body (21), a dividing limiting cover (22), positioning stand columns (23), a shrinkage spring (24), a shrinkage groove (25), a fit rubber ring (26), a negative pressure hole (27), a negative pressure pipe (28), a pipe group cavity (29) and a negative pressure main pipe (210), wherein the clamping disc body (21) is fixedly connected with the output end of the clamping hydraulic cylinder (3), the dividing limiting cover (22) is fixedly arranged on the upper surface of the clamping disc body (21), a plurality of positioning stand columns (23) are arranged on the inner side of the dividing limiting cover (22), the positioning stand columns (23) are slidably arranged in the shrinkage groove (25) and are elastically connected with the shrinkage spring (24) at the bottom of the shrinkage groove (25), and the shrinkage groove (25) is formed in the clamping disc body (21); the upper end of the positioning upright post (23) is fixedly provided with a fit rubber ring (26), the center of the positioning upright post (23) is provided with a negative pressure hole (27), the negative pressure hole (27) is communicated with one end of a negative pressure pipe (28), the other end of the negative pressure pipe (28) penetrates into a pipe group cavity (29) formed in the clamping disc body (21) and is communicated with one end of a negative pressure main pipe (210), one end of the negative pressure main pipe (210) is communicated with a plurality of negative pressure pipes (28), and the other end of the negative pressure main pipe (210) is communicated with a negative pressure machine;
the dividing limiting cover (22) is a rectangular cover, and the dividing limiting cover (22) is used for protecting the positioning upright post (23) on the inner side.
2. The workpiece clamping structure for a tensile and compressive testing machine as claimed in claim 1, wherein: the clamping pliers (1) of the pulling press comprise clamping pliers bodies (11), clamping pliers bodies (12), side pressing plates (13) and engaging grooves (14), wherein clamping hydraulic cylinders (3) are fixedly arranged on the lower surface of the clamping pliers bodies (11), the clamping pliers bodies (12) are slidably arranged on the inner side surfaces of the clamping pliers bodies (11), two clamping pliers bodies (12) are arranged, side pressing plates (13) are arranged on two sides of the clamping pliers bodies (12), four side pressing plates (13) are arranged on the side pressing plates, and the side pressing plates (13) are fixedly arranged on the clamping pliers bodies (11); a fitting groove (14) is formed below the inner side of the clamping body (12), and a clamping disc body (21) is arranged in the fitting groove (14).
3. The workpiece clamping structure for a tensile and compressive testing machine as claimed in claim 2, wherein: symmetrical equilateral trapezoid grooves are formed in the middle of the clamping pincer body (11), and the clamping body (12) is slidably mounted on the inner side surfaces of the equilateral trapezoid grooves of the clamping pincer body (11).
4. The workpiece clamping structure for a tensile and compressive testing machine as claimed in claim 1, wherein: the positioning upright post (23) is a round upright post, and a fit rubber ring (26) is arranged on the periphery above a negative pressure hole (27) which is formed by penetrating the center of the positioning upright post (23); the negative pressure pipe (28) is a negative pressure type hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322185504.2U CN220568551U (en) | 2023-08-15 | 2023-08-15 | Workpiece clamping structure for tensile and compression testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322185504.2U CN220568551U (en) | 2023-08-15 | 2023-08-15 | Workpiece clamping structure for tensile and compression testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220568551U true CN220568551U (en) | 2024-03-08 |
Family
ID=90100542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322185504.2U Active CN220568551U (en) | 2023-08-15 | 2023-08-15 | Workpiece clamping structure for tensile and compression testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220568551U (en) |
-
2023
- 2023-08-15 CN CN202322185504.2U patent/CN220568551U/en active Active
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