CN111855390A - Clamping device and tensile machine clamp - Google Patents
Clamping device and tensile machine clamp Download PDFInfo
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- CN111855390A CN111855390A CN202010580802.XA CN202010580802A CN111855390A CN 111855390 A CN111855390 A CN 111855390A CN 202010580802 A CN202010580802 A CN 202010580802A CN 111855390 A CN111855390 A CN 111855390A
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- clamping
- clamping piece
- seat
- clamp base
- clamp
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- Life Sciences & Earth Sciences (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Clamps And Clips (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention is suitable for the technical field of test instrument equipment, and provides a clamping device and a tensile machine clamp, wherein the clamping device comprises: the clamp base is of a U-shaped structure, and at least one clamping piece seat is arranged inside the clamp base; the clamping piece is connected to the clamping piece seat in a sliding mode through a wedge-shaped structure and used for clamping and automatically locking; the driving structure is arranged on the clamp base, connected to the non-joint surface of the clamping piece seat and used for driving the clamping piece seat to move; wherein, the wedge structure is a structure that the end of the pulling direction inclines to the clamping surface. Through clamping piece seat and clamping piece wedge structure sliding connection, when the article received 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 the tighter of article centre gripping, has avoided the pulling force to cause article to break away from the centre gripping unstability that causes greatly, has increased the stability of centre gripping, and the pulling dynamics is big more, and the centre gripping is more stable. The invention has the advantages that: simple structure, convenient operation, strong applicability, stable clamping and convenient popularization and implementation.
Description
Technical Field
The invention belongs to the technical field of test instrument equipment, and particularly relates to a clamping device and a tensile machine clamp.
Background
When a tensile testing machine is used for testing the mechanical property of a product or a material, corresponding clamps are usually needed to clamp a sample, but because the types and the sizes of the samples are different, the clamping width of a conventional self-tightening clamp is in a fixed range, clamps with different clamping widths or clamping pieces with different thicknesses are needed to be replaced to realize the clamping test of the samples with different thicknesses, and the clamps or the clamping pieces with different clamping ranges are configured, so that the test cost is increased, and meanwhile, the replacement of the clamps or the clamping pieces brings inconvenience to the operation. The clamp capable of adjusting the clamping width on the market has no self-tightening function, and the slippage phenomenon easily occurs in the testing process, so that the testing effect is influenced.
Disclosure of Invention
The embodiment of the invention aims to provide a clamping device, aiming at solving the problem of no self-tightening function.
The embodiment of the present invention is achieved by a holding device, including:
the clamp base is of a U-shaped structure, and at least one clamping piece seat is arranged inside the clamp base;
the clamping piece is connected to the clamping piece seat in a sliding mode through a wedge-shaped structure and used for clamping and automatically locking;
the driving structure is arranged on the clamp base, connected to the non-joint surface of the clamping piece seat and used for driving the clamping piece seat to move;
Wherein, the wedge structure is a structure that the end of the pulling direction inclines to the clamping surface.
In the embodiment of the invention, an article to be clamped is placed between the clamping pieces or between the clamping pieces and the inner wall of the clamp base, the driving device is started, the driving device drives the clamping piece seat to slide, so that the clamping pieces are drawn close or close to the inner part of the clamp base to complete clamping, when the article is subjected to a pulling force, the clamping pieces are drawn to move towards the direction of the pulling force, so that the clamping piece seat and the clamping pieces slide relatively, the clamping pieces slide to enable the clamping pieces to be close to each other or the distance between the clamping pieces and the inner wall of the clamp base is smaller, so that the article is clamped more tightly, the phenomenon that the article is separated from due to large pulling force to cause unstable clamping is avoided, the clamping stability is increased, and the clamping is more stable. When the article needs to be taken out, the driving structure is adjusted to enable the clamping piece seat to move, so that the clamping pieces are far away from or separated from the inner wall of the clamp base, and the article can be taken out. Thereby clamping and releasing the clamping device conveniently and quickly. The clamp base is of a U-shaped structure, the operation space is large, and the clamping operation is convenient.
In a preferred embodiment of the present invention, the combination surface of the clamping piece and the clamping piece seat is provided with a rail and a rail groove which are matched with each other in a sliding way.
As a preferred embodiment of the invention, a reset piece is arranged between the clamping piece seat and the clamping piece.
As a preferred embodiment of the invention, the reset piece comprises a sliding groove, a sliding block and a spring, the sliding groove is formed in the combining surface of the clamping piece seat, the sliding block is fixedly connected to the non-clamping surface of the clamping piece, the sliding block is nested in the sliding groove in a sliding mode, and the ends of the sliding block and the sliding groove are connected with the spring.
As a preferred embodiment of the invention, a sliding rod is fixedly arranged inside the sliding groove, and the sliding rod slides to penetrate through the spring and the sliding block.
As a preferred embodiment of the invention, at least one guide rod is fixedly connected to the end face of the clamping piece seat connecting driving structure, and the guide rod penetrates through the side wall of the clamp base in a sliding mode.
As a preferred embodiment of the invention, the side wall of the clamp base is internally provided with a linear bearing, and the linear bearing is slidably nested on the guide rod.
The embodiment of the invention also provides a tensile machine clamp, which comprises: a handle; and the number of the first and second groups,
a clamping device as described above;
the driving structure is a threaded screw rod, threads of the threaded screw rod penetrate through the side wall of the clamp base, one end of the threaded screw rod is rotatably connected to the clamping piece seat, and the handle is fixedly connected to the other end of the threaded screw rod.
As a preferred embodiment of the present invention, the handle is provided at an end thereof with a connection portion through which the handle is connected to the rotation member.
According to the clamping device provided by the embodiment of the invention, the clamping piece seat is connected with the clamping piece in a sliding manner through the wedge-shaped structure, when an object is subjected to a pulling force, the clamping piece is pulled to move towards the pulling force direction, so that the clamping piece seat and the clamping piece slide relatively, the clamping piece slides to enable the clamping pieces to approach each other or the distance between the clamping piece and the inner wall of the clamp base is smaller, so that the object is clamped more tightly, unstable clamping caused by the fact that the object is separated from the clamping base due to the fact that the pulling force is large is avoided, the clamping stability is improved, and the clamping is more stable when the pulling force is large. When the article needs to be taken out, the driving structure is adjusted to enable the clamping piece seat to move, so that the clamping pieces are far away from or separated from the inner wall of the clamp base, and the article can be taken out. Thereby clamping and releasing the clamping device conveniently and quickly. The clamp base is of a U-shaped structure, the operation space is large, and the clamping operation is convenient. The invention has the advantages that: simple structure, convenient operation, strong applicability, stable clamping and convenient popularization and implementation.
Drawings
Fig. 1 is a schematic front view of a clamping device according to an embodiment of the present invention;
Fig. 2 is a schematic perspective view of a clamp of a tensile machine according to an embodiment of the present invention;
fig. 3 is an exploded view of a clamping piece seat and a clamping piece in a clamping apparatus of a pulling machine according to an embodiment of the present invention;
in the drawings: the clamp comprises a clamp base 1, a threaded screw rod 2, a guide rod 3, a clamping piece seat 4, a clamping piece 5, a handle 6, a sliding groove 7, a spring 8 and a sliding block 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, a structure diagram of a clamping device provided in an embodiment of the present invention includes:
the clamp base 1 is of a U-shaped structure, and at least one clamping piece seat 4 is arranged in the clamp base in a sliding mode;
the clamping piece 5 is connected to the clamping piece seat 4 in a sliding mode through a wedge-shaped structure and used for clamping and automatically locking;
the driving structure is arranged on the clamp base 1, connected to the non-joint surface of the clamping piece seat 4 and used for driving the clamping piece seat 4 to move;
Wherein, the wedge structure is a structure that the end of the pulling direction inclines to the clamping surface.
In the embodiment of the invention, an article to be clamped is placed between the clamping pieces 5 or between the clamping pieces 5 and the inner wall of the clamp base 1, the driving device is started, the driving device drives the clamping piece base 4 to slide, so that the clamping pieces 5 are drawn close or the clamping pieces 5 are close to the interior of the clamp base 1 to complete clamping, when the article is subjected to a pulling force, the clamping pieces 5 are pulled to move towards the pulling force direction by the pulling force, so that the clamping piece base 4 and the clamping pieces 5 slide relatively, the clamping pieces 5 slide to enable the clamping pieces 5 to be close to each other or the distance between the clamping pieces 5 and the inner wall of the clamp base 1 is smaller, so that the article is clamped more tightly, the clamping caused by the fact that the article is separated from the clamping due to large pulling force is avoided, the clamping stability of the clamping. When the article needs to be taken out, the driving structure is adjusted to enable the clamping piece seat 4 to move, so that the clamping piece 5 is far away from or separated from the inner wall of the clamp base 1, and the article can be taken out. Thereby clamping and releasing the clamping device conveniently and quickly. The clamp base 1 is of a U-shaped structure, the operation space is large, and clamping operation is facilitated.
In one example of the invention, on the wedge-shaped combination surface of the clamping piece seat 4 and the clamping piece 5, the combination surface is in a slope flat plate structure, so that the sliding is convenient, the driving structure can be an electric structure such as a hydraulic rod, an electric telescopic rod and the like, the adjustment is convenient, the automation capacity of the clamping device is improved, of course, the driving structure can also be a manual driving piece such as a threaded screw rod 2 or a ball screw rod and the like, the manual operation is needed, but the manufacturing cost is reduced, and the energy dependence is reduced. Wherein, the screw thread screw rod 2 is used, although the rotation resistance is large, the active sliding of the clamping sheet seat 4 is avoided, the screw thread of the screw thread screw rod 2 passes through the side wall of the clamp base 1, and the inner end is rotatably connected on the non-clamping surface of the clamping sheet seat 4. The sliding of the clamping piece seat 4 can be completed by rotating the threaded screw rod 2, and the sliding directions of the clamping piece seat 4 can be driven by different rotating directions.
As a preferred embodiment of the present invention, the joint surface of the clamping piece 5 and the clamping piece seat 4 is provided with a rail and a rail groove which are in sliding fit with each other, so that the clamping piece seat 4 and the clamping piece 5 can slide with each other, thereby preventing the clamping piece seat 4 and the clamping piece 5 from being connected unstably and being separated from each other, thereby increasing the integrity of the clamping device, the rail and the rail groove can be arranged inside the clamping piece seat 4 and the clamping piece 5, or can be arranged at the edge of the clamping piece seat 4 and the clamping piece 5, so that the connection stability is good at the edge, and the problem of poor sliding caused by uneven stress of the clamping piece 5 is avoided.
As a preferred embodiment of the present invention, a reset element is disposed between the clip seat 4 and the clip 5, and when the external pulling force disappears, the clip 5 returns to the initial position under the action of the reset element, so as to avoid the complicated reset operation and the manual operation under the condition of insufficient manual or gravity.
As a preferred embodiment of the invention, the reset piece comprises a sliding groove 7, a sliding block 9 and a spring 8, the sliding groove 7 is arranged on the combining surface of the clamping piece seat 4, the sliding block 9 is fixedly connected on the non-clamping surface of the clamping piece 5, the sliding block 9 is slidably nested in the sliding groove 7, the sliding block 9 and the end part of the sliding groove 7 are connected with the spring 8, so that the reset is convenient, and the sliding block 9 is slidably nested in the sliding groove, so that the stability of the relative sliding of the clamping piece seat 4 and the clamping piece 5 is increased.
As a preferred embodiment of the present invention, a sliding rod is fixedly disposed inside the sliding groove 7, and the sliding rod slides through the spring 8 and the sliding block 9, so as to increase the sliding stability of the sliding block 9 and increase the integrity of the clamping sheet holder 4 and the clamping sheet 5.
As a preferred embodiment of the invention, at least one guide rod 3 is fixedly connected to the end face of the clamping piece seat 4 connected with the driving structure, and the guide rod 3 slides through the side wall of the clamp base 1, so that the sliding stability of the clamping piece seat 4 is ensured. The rotation of the clamping piece seat 4 along with the driving structure is avoided. The linear bearing is arranged in the side wall of the clamp base 1 and is slidably nested on the guide rod 3, so that the friction force between the guide rod 3 and the clamp base 1 is reduced, and the slide of the clamping piece seat 4 is smoother.
The embodiment of the invention also provides a tensile machine clamp, which comprises: a handle 6; and, the above-mentioned one kind of clamping device;
wherein, the driving structure is a thread screw rod 2, the thread of the thread screw rod 2 passes through the side wall of the clamp base 1, one end of the thread screw rod is rotatably connected on the clamping piece seat 4, and the handle 6 is fixedly connected at the other end of the thread screw rod 2.
In the embodiment of the invention, an article to be clamped is placed between the clamping pieces 5 or between the clamping pieces 5 and the inner wall of the clamp base 1, the threaded screw rod 2 is rotated through the handle 6, the threaded screw rod 2 pushes the clamping piece base 4 to slide, so that the clamping pieces 5 are drawn close or the clamping pieces 5 are close to the inside of the clamp base 1 to complete clamping, when the article is subjected to a pulling force, the clamping pieces 5 are pulled to move in the pulling force direction by pulling the clamping pieces 5, so that the clamping piece base 4 and the clamping pieces 5 slide relatively, the clamping pieces 5 slide to enable the clamping pieces 5 to be close to each other or the distance between the clamping pieces 5 and the inner wall of the clamp base 1 is smaller, so that the article is clamped more tightly, unstable clamping caused by article separation due to large pulling force is avoided, the clamping stability is increased, and the clamping. When the article needs to be taken out, the reverse rotation handle 6 is adjusted to enable the threaded screw rod 2 to pull the clamping piece seat 4 to move, so that the clamping piece 5 is far away from or separated from the inner wall of the clamp base 1, and the article can be taken out. Thereby clamping and releasing the clamping device conveniently and quickly. The clamp base 1 is of a U-shaped structure, the operation space is large, and clamping operation is facilitated.
As a preferred embodiment of the present invention, a connecting portion is disposed at an end of the handle 6, the handle 6 can be connected to a rotating member through the connecting portion, the connecting portion can be an inner hexagonal groove, an insertion cylinder, or the like, and the rotating member can be an inner hexagonal wrench, a steel pipe, a steel rod, or the like.
The clamping device is provided in the embodiment of the invention, and the clamping device is based on the clamping device to provide a clamp of the pulling machine, the clamping seat 4 is in sliding connection with the clamping piece 5 through the wedge-shaped structures, when an object is pulled, the pulling clamping piece 5 is pulled to move towards the pulling direction, so that the clamping seat 4 and the clamping piece 5 slide relatively, the clamping piece 5 slides to enable the clamping pieces 5 to approach each other or the distance between the clamping piece 5 and the inner wall of the clamp base 1 is smaller, so that the object is clamped more tightly, the phenomenon that the object is not clamped stably due to the fact that the object is separated due to large pulling force is avoided, the clamping stability is improved, and the clamping stability is more stable due to the fact that the pulling force is larger. When the article needs to be taken out, the driving structure is adjusted to enable the clamping piece seat 4 to move, so that the clamping piece 5 is far away from or separated from the inner wall of the clamp base 1, and the article can be taken out. Thereby clamping and releasing the clamping device conveniently and quickly. The clamp base 1 is of a U-shaped structure, the operation space is large, and clamping operation is facilitated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A clamping device, characterized in that the clamping device comprises:
the clamp comprises a clamp base, a clamping piece base and a clamping piece clamping mechanism, wherein at least one clamping piece base is arranged inside the clamp base;
the clamping piece is connected to the clamping piece seat in a sliding mode through a wedge-shaped structure and used for clamping and automatically locking;
the driving structure is arranged on the clamp base, connected to the non-joint surface of the clamping piece seat and used for driving the clamping piece seat to move;
wherein, the wedge structure is a structure that the end of the pulling direction inclines to the clamping surface.
2. The clamping device as claimed in claim 1, wherein the engaging surfaces of the clamping piece and the clamping piece holder are provided with a rail and a rail groove which are slidably engaged with each other.
3. A clamping apparatus as claimed in claim 1, wherein a reset member is provided between said clamping seat and said clamping jaw.
4. A clamping device as claimed in claim 3, wherein the return member comprises a sliding slot, a sliding block and a spring, the sliding slot is formed on the joint surface of the clamping piece seat, the sliding block is fixedly connected to the non-clamping surface of the clamping piece, the sliding block is slidably nested in the sliding slot, and the ends of the sliding block and the sliding slot are connected with the spring.
5. A clamping device as claimed in claim 4, wherein the slide slot is internally and fixedly provided with a slide bar which slides through the spring and the slide block.
6. A clamping apparatus according to claim 1, wherein at least one guide bar is fixedly attached to the end surface of the holder engaging drive structure, the guide bar sliding through the side wall of the clamp base.
7. A holding arrangement as claimed in claim 6, wherein the side walls of the holder base are provided internally with linear bearings which are slidably nested on the guide rods.
8. A tensioner clamp, comprising: a handle; and the number of the first and second groups,
a holding device as claimed in any one of claims 1 to 7;
the driving structure is a threaded screw rod, threads of the threaded screw rod penetrate through the side wall of the clamp base, one end of the threaded screw rod is rotatably connected to the clamping piece seat, and the handle is fixedly connected to the other end of the threaded screw rod.
9. A tensile machine clamp as claimed in claim 8 wherein the handle is provided with a connection at an end thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010580802.XA CN111855390A (en) | 2020-06-23 | 2020-06-23 | Clamping device and tensile machine clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010580802.XA CN111855390A (en) | 2020-06-23 | 2020-06-23 | Clamping device and tensile machine clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111855390A true CN111855390A (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010580802.XA Pending CN111855390A (en) | 2020-06-23 | 2020-06-23 | Clamping device and tensile machine clamp |
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| Country | Link |
|---|---|
| CN (1) | CN111855390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665984A (en) * | 2021-01-08 | 2021-04-16 | 安徽理工大学 | Wedge-shaped clamp for testing uniaxial tensile property of rock |
| CN116798809A (en) * | 2023-07-01 | 2023-09-22 | 安徽汇德电子科技有限公司 | Temperature controller capable of stabilizing temperature measurement |
-
2020
- 2020-06-23 CN CN202010580802.XA patent/CN111855390A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665984A (en) * | 2021-01-08 | 2021-04-16 | 安徽理工大学 | Wedge-shaped clamp for testing uniaxial tensile property of rock |
| CN116798809A (en) * | 2023-07-01 | 2023-09-22 | 安徽汇德电子科技有限公司 | Temperature controller capable of stabilizing temperature measurement |
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