CN220347765U - Positioning and clamping structure - Google Patents
Positioning and clamping structure Download PDFInfo
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- CN220347765U CN220347765U CN202321932332.4U CN202321932332U CN220347765U CN 220347765 U CN220347765 U CN 220347765U CN 202321932332 U CN202321932332 U CN 202321932332U CN 220347765 U CN220347765 U CN 220347765U
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- clamp
- clamp body
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- 239000000463 material Substances 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The utility model discloses a positioning and clamping structure, which comprises a clamp main body, wherein the clamp main body comprises a columnar section, the root of the columnar section is provided with a taper sleeve, and the clamp main body is provided with a through hole extending along the axial direction of the clamp main body; the mandrel is arranged in the through hole in a free state, and one end of the mandrel is provided with a cone; the clamping tile is sleeved outside the columnar section; the inner sides of the two ends of the clamping tile are respectively provided with an inclined plane structure, and the outer sides of the two ends of the clamping tile are respectively provided with a plane structure. Simple and reasonable structure and convenient installation and use. The double-head clamping shoe is used for clamping and fixing two ends of the inner cavity of the part through forced expansion, so that coaxiality of the inner cavity and the outer circle of the part can be ensured, and the positioning and clamping structure can be applied to a semi-automatic production line, and processing quality and production efficiency of the part are improved. Is worth popularizing and using in a large area.
Description
Technical Field
The utility model relates to the technical field of clamps, in particular to a high-precision automatic positioning and clamping structure for brittle materials.
Background
On the semi-automatic assembly line, simple and convenient frock clamp can improve the processingquality and the production efficiency of part. A part of powdery high-molecular energetic material is made up by pressing it into shape, and belongs to brittle high-molecular material, and features viscoelasticity. Because of the design and use requirements, the coaxiality requirement on the structure is high, but because of the structural characteristics, the inner cavity of the sinking table and the appearance of the part cannot be machined at the same time.
In the prior art, as the high-precision positioning clamp is not provided, when the part is produced, an inner cavity or an appearance is required to be machined firstly, and then the coaxiality is ensured by secondary clamping and surface marking alignment.
Therefore, how to provide a fixture capable of ensuring that the axis of the part clamping and the axis of the machine tool rotating shaft are coincident, so as to ensure coaxiality is a technical problem which is urgently needed to be solved by a person skilled in the art.
Disclosure of Invention
In view of the above, the present utility model provides a positioning and clamping structure for overcoming or at least partially solving the above-mentioned problems.
The utility model provides the following scheme:
a positioning and clamping structure comprising:
the clamp comprises a clamp body, wherein the clamp body comprises a columnar section, a taper sleeve is arranged at the root of the columnar section, and a through hole extending along the axial direction of the clamp body is formed in the clamp body;
the mandrel is arranged in the through hole in a free state, and one end of the mandrel is provided with a cone;
the clamping tile is sleeved outside the columnar section; inclined plane structures are arranged on the inner sides of the two ends of the clamping tile, and plane structures are arranged on the outer sides of the two ends of the clamping tile;
the mandrel is used for moving along the axial direction of the clamp main body under the action of external force, so that the inclined surface structure is respectively contacted with the taper sleeve and the taper body, and the planar structure is driven to expand and move outwards to be contacted with the inner cavity of the part so as to clamp the part.
Preferably: one end of the mandrel, which is far away from the cone, is used for being connected with a cylinder of a machine tool, and the cylinder is used for driving the mandrel to move along the axial direction of the clamp main body.
Preferably: the outer part of the planar structure is provided with a flexible material layer.
Preferably: the flexible material layer includes a flexible rubber layer.
Preferably: the clamp body further comprises a connecting section, the diameter of the connecting section is larger than that of the columnar section, and the taper sleeve is located at the joint of the connecting section and the columnar section.
Preferably: the connecting section is provided with a flange plate, and the flange plate is used for being connected with a machine tool.
According to the specific embodiment provided by the utility model, the utility model discloses the following technical effects:
the embodiment of the application provides a location clamping structure, simple structure is reasonable, installation convenient to use. The double-head clamping shoe is used for clamping and fixing two ends of the inner cavity of the part through forced expansion, so that coaxiality of the inner cavity and the outer circle of the part can be ensured, and the positioning and clamping structure can be applied to a semi-automatic production line, and processing quality and production efficiency of the part are improved. Is worth popularizing and using in a large area.
Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic structural view of a positioning and clamping structure according to an embodiment of the present utility model.
In the figure: the fixture comprises a fixture body 1, a taper sleeve 2, a mandrel 3, a clamping tile 4, a flexible material layer 5, a flange 6 and a part 7.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
Referring to fig. 1, a positioning and clamping structure provided in an embodiment of the present utility model, as shown in fig. 1, may include:
the clamp comprises a clamp body 1, wherein the clamp body 1 comprises a columnar section, a taper sleeve 2 is arranged at the root of the columnar section, and the clamp body 1 is provided with a through hole extending along the axial direction of the clamp body;
the mandrel 3 is arranged in the through hole in a free state, and one end of the mandrel 3 is provided with a cone;
the clamping tile 4 is sleeved outside the columnar section; inclined plane structures are arranged on the inner sides of the two ends of the clamping tile 4, and plane structures are arranged on the outer sides of the two ends of the clamping tile 4;
the mandrel 3 is used for moving along the axial direction of the clamp main body 1 under the action of external force, so that the inclined surface structure is respectively contacted with the taper sleeve 2 and the taper body, and the planar structure is driven to expand and move outwards to be contacted with the inner cavity of the part 7, so that the part 7 is clamped.
The positioning and clamping structure provided by the embodiment of the application slides through the mandrel 3, the double-end clamping shoe clamps and fixes the two ends of the inner cavity of the part 7 through forced expansion, the two ends of the clamping shoe 4 are both inclined planes and plane combinations, the inclined planes realize the centering function through being matched with the taper sleeve 2 and the pull core, the two ends are ensured to be concentric and coaxial, the plane is used for clamping the part and ensuring the coaxiality of the part and the machine tool spindle.
The structure carries out double-clamping two-end positioning through the clamping shoe, so that the superposition of the axis clamped by the part 7 and the axis of the machine tool rotating shaft is ensured, and the coaxiality of the shape and the inner cavity of the part is ensured when the part is machined. The manual clamping and positioning meter marking is not needed, the processing steps are simplified, the adverse effect caused by unstable meter marking precision is eliminated, and the meter marking machine can be applied to a semi-automatic assembly line.
The external force for driving the mandrel to move can be provided in various modes, for example, an independent driver can be arranged for driving the mandrel to move. In order to further reduce the complexity of the whole structure and make full use of the machine tool equipment, in one implementation, the embodiment of the application may provide that the end of the mandrel 3 away from the cone is used for being connected with a cylinder of the machine tool, and the cylinder is used for driving the mandrel 3 to move along the axial direction of the clamp body.
The mandrel 3 is connected with an air cylinder, and when the part is clamped, the air cylinder sucks air, the mandrel 3 moves inwards, the clamping tile 4 expands, and the part is automatically clamped. When the part is disassembled, the cylinder is closed, the mandrel 3 moves outwards under the expansion force of the clamping tile 4, the part is automatically loosened, and the robot grabs the part to transfer.
In order to reduce the deformation of the parts due to the expansion clamping, embodiments of the present application may also provide that the outer part of the planar structure is provided with a flexible material layer 5. Further, the flexible material layer includes a flexible rubber layer.
The high-density flexible rubber is uniformly added on the planes at the two ends of the clamping tile, and because the parts belong to brittle high polymer materials, the dimensional stability is weak, the rigid clamping can not be used like common parts, the buffer clamping area is added, and the stress deformation can be effectively reduced.
In order to facilitate connection of the clamp body with a machine tool, the embodiment of the application can provide that the clamp body further comprises a connecting section, the diameter of the connecting section is larger than that of the columnar section, and the taper sleeve 2 is located at the connection position of the connecting section and the columnar section. The connecting section is provided with a flange plate 6, and the flange plate 6 is used for being connected with a machine tool.
When the positioning and clamping structure provided by the embodiment of the application is used, the part 7 is positioned by the end face of the front end of the clamp body 1 and two clamping faces outside the clamp tile 4. The clamp body 1 is connected with a machine tool through the flange 6, the mandrel 3 is connected with a machine tool cylinder, the part 7 is sleeved on the clamping tile during processing, after the clamp body 1 is positioned by means of the clamp body, the cylinder valve is rotated, the mandrel is pulled to move backwards, the clamping tile 4 contacts the cone and the cone sleeve of the mandrel, and the two sides of the clamping tile are expanded to form double clamping surfaces to clamp the part 7.
In a word, the location clamp structure that this application provided, simple structure is reasonable, installation convenient to use. The double-head clamping shoe is used for clamping and fixing two ends of the inner cavity of the part through forced expansion, so that coaxiality of the inner cavity and the outer circle of the part can be ensured, and the positioning and clamping structure can be applied to a semi-automatic production line, and processing quality and production efficiency of the part are improved. Is worth popularizing and using in a large area.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the description of the embodiments above, it will be apparent to those skilled in the art that the present application may be implemented in software plus the necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in the embodiments or some parts of the embodiments of the present application.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for a system or system embodiment, since it is substantially similar to a method embodiment, the description is relatively simple, with reference to the description of the method embodiment being made in part. The systems and system embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.
Claims (6)
1. A positioning and clamping structure, comprising:
the clamp comprises a clamp body, wherein the clamp body comprises a columnar section, a taper sleeve is arranged at the root of the columnar section, and a through hole extending along the axial direction of the clamp body is formed in the clamp body;
the mandrel is arranged in the through hole in a free state, and one end of the mandrel is provided with a cone;
the clamping tile is sleeved outside the columnar section; inclined plane structures are arranged on the inner sides of the two ends of the clamping tile, and plane structures are arranged on the outer sides of the two ends of the clamping tile;
the mandrel is used for moving along the axial direction of the clamp main body under the action of external force, so that the inclined surface structure is respectively contacted with the taper sleeve and the taper body, and the planar structure is driven to expand and move outwards to be contacted with the inner cavity of the part so as to clamp the part.
2. The positioning and clamping structure as recited in claim 1, wherein an end of said spindle remote from said cone is adapted to be coupled to a cylinder of a machine tool, said cylinder being adapted to drive said spindle in axial movement along said clamp body.
3. The positioning and clamping structure as recited in claim 1, wherein the planar structure is externally provided with a layer of flexible material.
4. A positioning and clamping structure according to claim 3 wherein said flexible material layer comprises a flexible rubber layer.
5. The positioning and clamping structure of claim 1, wherein the clamp body further comprises a connecting section, the connecting section having a diameter greater than the diameter of the cylindrical section, the taper sleeve being located at a junction of the connecting section and the cylindrical section.
6. The positioning and clamping structure according to claim 5, wherein the connecting section is provided with a flange for connection to a machine tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321932332.4U CN220347765U (en) | 2023-07-21 | 2023-07-21 | Positioning and clamping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321932332.4U CN220347765U (en) | 2023-07-21 | 2023-07-21 | Positioning and clamping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220347765U true CN220347765U (en) | 2024-01-16 |
Family
ID=89505826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321932332.4U Active CN220347765U (en) | 2023-07-21 | 2023-07-21 | Positioning and clamping structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220347765U (en) |
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2023
- 2023-07-21 CN CN202321932332.4U patent/CN220347765U/en active Active
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