CN217914974U - Elastic clamp - Google Patents
Elastic clamp Download PDFInfo
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- CN217914974U CN217914974U CN202222111495.8U CN202222111495U CN217914974U CN 217914974 U CN217914974 U CN 217914974U CN 202222111495 U CN202222111495 U CN 202222111495U CN 217914974 U CN217914974 U CN 217914974U
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- positioning block
- clamping piece
- clamping
- die sleeve
- pipe
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- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of thin wall tubular product is fixed, indicate the elastic fixture of pyrocondensation double-walled pipe especially. The elastic clamp includes: the pipe fitting comprises a die sleeve, a pipe fitting and a pipe fitting, wherein a limiting cavity for the pipe fitting to penetrate is formed inside the die sleeve; the clamping assembly comprises a clamping piece group and a positioning block group which are arranged on at least one end face of the die sleeve in a surrounding mode, and an elastic piece providing a gathering effect for the center of the clamping piece group, the positioning block is fixed on the die sleeve, the clamping pieces and the positioning block are arranged at intervals and movably connected, when the clamping pieces are attached to the positioning block, the clamping piece group and the positioning block group are combined to form an oval inner cavity, and the size of the pipe is between the short axis size of the oval inner cavity and the diameter of the limiting cavity. The application provides an elastic fixture suitable for pyrocondensation double-walled pipe, its quick clamp that can realize tubular product tightly with the release, effectively improves machining efficiency, satisfies the continuity operation requirement.
Description
Technical Field
The utility model belongs to the technical field of thin wall tubular product is fixed, indicate the elastic fixture of pyrocondensation double-walled pipe especially.
Background
When the semi-finished product of the thermal shrinkage double-wall pipe is made into a sealing cap product in production, a tool clamp is required to clamp the thermal shrinkage double-wall pipe, and then the sealing cap is formed by heating. Because the outer diameters of the heat-shrinkable double-wall pipes with the same specification have slight deviation (+/-0.5 mm), the tool clamp is required to be capable of clamping the heat-shrinkable double-wall pipes with the slight deviation of the outer diameters. In addition, the heat-shrinkable double-wall pipe can be clamped without frequently adjusting the tightness of the clamp. Based on the above requirements, the clamping mechanism is designed in consideration of adjusting the tightness of the clamp using a spring.
The utility model discloses a thin wall tubular product cuts off and uses anchor clamps in the chinese utility model patent CN207127535U to specifically disclose including two piece at least petal pieces, enclose into the confined annular, every through elastic connection spare cohesion between two adjacent petal pieces the relevant position of petal piece is all carved with the recess, utilize the detachable mounting to be stuck in will all in the recess the petal piece cramps. The elastic connecting piece is a spring; the fixing piece is a hoop. In the use process of the embodiment, the outer side hoop needs to be continuously released, the clamping switching of multiple pipes is realized, and the processing efficiency of the pipes is greatly influenced.
SUMMERY OF THE UTILITY MODEL
To the above technical problem, an object of the utility model is to provide an elastic fixture suitable for pyrocondensation double-walled pipe, its quick clamping and the release that can realize tubular product effectively improve machining efficiency, satisfy the continuity operation requirement.
In order to achieve the above object, the present invention provides the following technical solutions:
an elastic clamp comprising:
the pipe fitting comprises a die sleeve, a pipe fitting and a pipe fitting, wherein a limiting cavity for the pipe fitting to penetrate is formed inside the die sleeve;
the clamping assembly comprises a clamping piece group and a positioning block group which are arranged on at least one end face of the die sleeve in a surrounding mode, and an elastic piece providing a gathering effect for the center of the clamping piece group, the positioning block is fixed on the die sleeve, the clamping pieces and the positioning block are arranged at intervals and movably connected, when the clamping pieces are attached to the positioning block, the clamping piece group and the positioning block group are combined to form an oval inner cavity, and the size of the pipe is between the short axis size of the oval inner cavity and the diameter of the limiting cavity.
In some technical schemes, the clamping piece set comprises N clamping pieces which are uniformly distributed, the inner diameter size of each clamping piece is consistent with the diameter of the limiting cavity, and the inner perimeter of each clamping piece is smaller than 1/N of the inner perimeter of the die sleeve.
In some technical schemes, the peripheries of the clamping piece group and the positioning block group are provided with grooves for sleeving the elastic pieces.
In some technical solutions, the clamping piece and the positioning block are of an annular structure with the same outer diameter, and the elastic piece is an O-ring tension spring.
In some technical schemes, the number of the clamping pieces is selected to be 2, 3 or 4,
when the clamping piece is attached to the positioning block, the area enclosed by the clamping piece group and the positioning block contracts into an oval shape under the gathering action of the elastic piece;
when a pipe penetrates through the die sleeve, the clamping pieces expand outwards under the extrusion action of the pipe, and the pipe is clamped by combining the constraint force of the elastic piece.
In some technical schemes, the clamping piece is connected with the positioning block through a pin shaft; or,
the adjacent clamping pieces are movably connected with the matched bulges and concave parts which are respectively formed on the positioning block.
In some technical solutions, the positioning block set includes a plurality of positioning blocks formed on an end surface of the mold set and uniformly distributed, and an inner diameter of each positioning block is larger than a diameter of the pipe.
In some technical schemes, the die sleeve is cylindrical, and one end part of the die sleeve is formed with a pair of positioning blocks which are symmetrically arranged;
the clamping piece group comprises a pair of clamping pieces distributed on two sides of the positioning block, the inner diameter size of each clamping piece is consistent with the diameter of the limiting cavity, and the outer diameter size of each clamping piece is consistent with the outer diameter of the positioning block;
the inner circumference of the clamping piece is smaller than half of the inner circumference of the die sleeve, and when the clamping piece and the die sleeve are in a concentric state, a gap is reserved between the section of the clamping piece and the positioning block;
the elastic piece is sleeved on the periphery of the clamping piece group and the positioning block group, and when the clamping piece is attached to the positioning block, the area enclosed by the clamping piece group and the positioning block group contracts to be oval under the gathering action of the elastic piece; when a pipe penetrates through the die sleeve, the clamping pieces expand outwards under the extrusion action of the pipe, and the pipe is clamped by combining the constraint force of the elastic piece.
The utility model adopts the above technical scheme at least have following beneficial effect:
the clamping pieces which are movably connected are arranged at intervals and are enclosed with the positioning blocks to form an oval inner cavity, when a pipe passes through the die sleeve, the clamping pieces are expanded under the extrusion action of the pipe, and the pipe is clamped by the elastic pieces which are sleeved on the periphery of the clamping pieces and the positioning block groups.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings and their reference numbers used in the embodiments are briefly described below, it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an exploded view of an elastic clamp according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of an elastic clamp according to an embodiment of the present disclosure in a material-free state;
FIG. 3 is a top view of an elastic clamp according to an embodiment of the present disclosure in a material-free state;
FIG. 4 is a cross-sectional view of an elastic clamp according to an embodiment of the present disclosure in a material-free state;
fig. 5 is a schematic view illustrating a material clamping state of the elastic clamp according to the embodiment of the present application.
The notations in the figures have the following meanings:
10-a mould sleeve, 11-a limit cavity;
20-positioning blocks; 30-clip, 31-groove; 40-positioning pins; a 50-O-shaped ring tension spring;
60-an ellipsoidal cavity;
70-heat-shrinkable double-walled tube.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
For the sake of simplicity, only the parts related to the utility model are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, an elastic clamp is shown, which is a mechanism designed based on the characteristics of thin wall, elasticity, moderate hardness and elastic deformation after extrusion of a heat-shrinkable double-wall pipe 70, and is especially suitable for clamping thin-wall pipes, and certainly, the elastic clamp is also suitable for quickly clamping other pipes with small diameter and difficult plastic deformation.
The elastic clamp comprises a die sleeve 10 and a clamping assembly arranged at one end of the die sleeve 10. The die sleeve 10 is cylindrical, a limiting cavity 11 for the pipe to penetrate is formed in the die sleeve, and the inner diameter of the die sleeve 10 is slightly larger than the outer diameter of the pipe. The clamping assembly comprises a clamping piece group and a positioning block group which are enclosed, and an elastic piece which is sleeved on the periphery of the clamping piece group and the positioning block group and provides a gathering effect for the center of the clamping piece group. The positioning block 20 is fixed on the mold sleeve 10, the clamping piece 30 and the positioning block 20 are arranged at intervals and movably connected, the inner diameter of the clamping piece 30 is consistent with that of the mold sleeve 10, and when the clamping piece 30 and the mold sleeve 10 are in a concentric state, a gap is reserved between the section of the clamping piece 30 and the positioning block 20; when the clamping piece 30 is attached to the positioning block 20, the area surrounded by the clamping piece group and the positioning block contracts to be oval under the gathering action of the elastic piece; when a pipe penetrates through the die sleeve 10, the clamping pieces 30 expand outwards under the extrusion action of the pipe, and the pipe is clamped quickly under the constraint of the elastic piece.
The size of the pipe in the embodiment is between the size of the short shaft of the oval inner cavity 60 and the diameter of the limiting cavity 11, the pipe passing through the die sleeve 10 can be stably supported by the elastic die through the extrusion clamping assembly, the release can be realized by directly collecting the pipe, and the process continuity and the processing efficiency are obviously improved.
In some embodiments, the clip assembly includes N clips 30 uniformly arranged, and the inner perimeter of the clips 30 is less than 1/N of the inner perimeter of the die case 10. The number of the clamping pieces 30 can be designed according to the size of the pipe and the specific requirements on the clamping stability, and 2, 3 or 4 clamping pieces are usually selected; the inner perimeter of the clamping piece 30 is smaller than 1/N of the inner perimeter of the mold sleeve 10, so that a gap is left between the clamping piece 30 and the positioning block 20 in a coaxial state of the mold sleeve 10, and then the clamping piece 30 can be closed to form an oval inner cavity 60 when being attached to the positioning block 20 under the folding effect of the elastic piece, so that a pipe with the diameter between the oval short shaft and the inner diameter of the mold sleeve 10 can be clamped, and the heat-shrinkable double-wall pipe 70 with the outer diameter with small size deviation can also be clamped.
In an embodiment, the positioning block 20 is movably connected to the clip 30 by a pin or by a protrusion and a recess formed on the adjacent clip 30 and the positioning block 20. The specific connection mode is not particularly limited, and only the clamping piece 30 can be attached to and away from the positioning block 20 to form an outer-expanding or inner-contracting enclosing inner cavity.
In one embodiment, the clamping piece 30 and the positioning block 20 are of an annular structure with the same outer diameter, a groove 31 for sleeving an elastic member is formed on the surrounding periphery of the clamping piece, the elastic member is an O-ring tension spring 50 and has moderate deformation capacity, and the type and parameters of the O-ring tension spring 50 are selected according to the performance characteristics of the clamped member, such as when the heat-shrinkable double-walled pipe 70 is clamped, a light-load O-ring tension spring is preferably selected.
In a specific example, the positioning block group includes a pair of annular positioning blocks symmetrically arranged at the end of the mold sleeve 10, the clamping piece group includes a pair of annular clamping pieces distributed at two sides of the positioning block 20, the inner diameter of the clamping piece 30 is consistent with the diameter of the limiting cavity 11, the outer diameter is consistent with the outer diameter of the positioning block 20, the inner perimeter of the clamping piece 30 is smaller than a half of the inner perimeter of the mold sleeve 10, the inner diameter of the positioning block 20 is larger than the diameter of a pipe, and the inner diameter of the mold sleeve 10 is larger than the size of the pipe.
Each positioning block 20 is provided with a first positioning hole for installing a positioning pin 40, and the adjacent clamping pieces 30 are provided with second positioning holes for connecting with the positioning blocks 20 through the positioning pins 40.
The clamping set and the positioning set are sleeved with an O-shaped ring tension spring 50 for providing the gathering effect of the clamping assembly.
The application also provides an assembling method of the elastic clamp, which specifically comprises the following steps: inserting two positioning pins 40 into first positioning holes of two positioning blocks 20 of the mold sleeve 10; the two clamping pieces 30 are respectively arranged at two sides of the positioning block 20, and meanwhile, the positioning pin 40 is ensured to be inserted into the second positioning hole of the clamping piece 30; then, the O-ring tension spring 50 is fitted into the peripheral grooves of the set block 20 and the clip 30. The mechanism is assembled and is schematically shown in fig. 2-4. Under the action of the elastic force of the O-shaped ring tension spring 50, the two mold clamping pieces are close to the center, the sections of the clamping pieces 30 are attached to the positioning block 20, the enclosed area of the two mold clamping pieces shrinks into an oval shape, and a heat-shrinkable double-wall pipe 70 with the outer diameter larger than the oval short shaft and smaller than the inner diameter of the mold sleeve 10 can be clamped, and the schematic material clamping diagram is shown in fig. 5.
The application provides an elastic fixture simple structure, convenient to use is suitable for the continuity operation needs.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. Elastic clamp, its characterized in that includes:
the pipe fitting comprises a die sleeve, a pipe fitting and a pipe fitting, wherein a limiting cavity for the pipe fitting to penetrate is formed inside the die sleeve;
the clamping assembly comprises a clamping piece group and a positioning block group which are arranged on at least one end face of the die sleeve in a surrounding mode, and an elastic piece providing a gathering effect for the center of the clamping piece group, the positioning block is fixed on the die sleeve, the clamping pieces and the positioning block are arranged at intervals and movably connected, when the clamping pieces are attached to the positioning block, the clamping piece group and the positioning block group are combined to form an oval inner cavity, and the size of the pipe is between the short axis size of the oval inner cavity and the diameter of the limiting cavity.
2. The spring clip of claim 1,
the clamping piece group comprises N clamping pieces which are uniformly distributed, the inner diameter size of each clamping piece is consistent with the diameter of the limiting cavity, and the inner perimeter of each clamping piece is smaller than 1/N of the inner perimeter of the die sleeve.
3. The spring clip of claim 2,
the peripheries of the clamping piece group and the positioning block group are provided with grooves for sleeving the elastic pieces.
4. The spring clip of claim 3,
the clamping piece and the positioning block are of annular structures with the same outer diameters, and the elastic piece is an O-shaped ring tension spring.
5. The spring clip of claim 1,
the number of the clamping pieces is selected to be 2, 3 or 4,
when the clamping piece is attached to the positioning block, the area enclosed by the clamping piece group and the positioning block contracts to be oval under the gathering action of the elastic piece;
when a pipe penetrates through the die sleeve, the clamping pieces expand outwards under the extrusion action of the pipe, and the pipe is clamped by combining the constraint force of the elastic piece.
6. The spring clip of claim 1,
the clamping piece is connected with the positioning block through a pin shaft; or,
the adjacent clamping pieces are movably connected with the matched bulges and concave parts which are respectively formed on the positioning block.
7. The spring clip of claim 1,
the positioning block group comprises a plurality of positioning blocks which are formed on one end face of the die sleeve and are uniformly distributed, and the inner diameter of each positioning block is larger than the diameter of the pipe.
8. An elastic clamp according to any one of claims 1 to 7,
the die sleeve is cylindrical, and a pair of positioning blocks which are symmetrically arranged is formed at one end of the die sleeve;
the clamping piece group comprises a pair of clamping pieces distributed on two sides of the positioning block, the inner diameter size of each clamping piece is consistent with the diameter of the limiting cavity, and the outer diameter size of each clamping piece is consistent with the outer diameter of the positioning block;
the inner circumference of the clamping piece is smaller than half of the inner circumference of the die sleeve, and when the clamping piece and the die sleeve are in a concentric state, a gap is reserved between the section of the clamping piece and the positioning block;
the elastic piece is sleeved on the periphery of the clamping piece group and the positioning block group, and when the clamping piece is attached to the positioning block, the area enclosed by the clamping piece group and the positioning block group contracts to be oval under the gathering action of the elastic piece; when a pipe penetrates through the die sleeve, the clamping pieces expand outwards under the extrusion action of the pipe, and the pipe is clamped by combining the constraint force of the elastic piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222111495.8U CN217914974U (en) | 2022-08-11 | 2022-08-11 | Elastic clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222111495.8U CN217914974U (en) | 2022-08-11 | 2022-08-11 | Elastic clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217914974U true CN217914974U (en) | 2022-11-29 |
Family
ID=84156742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222111495.8U Active CN217914974U (en) | 2022-08-11 | 2022-08-11 | Elastic clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217914974U (en) |
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2022
- 2022-08-11 CN CN202222111495.8U patent/CN217914974U/en active Active
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