CN221185536U - Double-conicity built-in expansion tool - Google Patents
Double-conicity built-in expansion tool Download PDFInfo
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- CN221185536U CN221185536U CN202322442755.4U CN202322442755U CN221185536U CN 221185536 U CN221185536 U CN 221185536U CN 202322442755 U CN202322442755 U CN 202322442755U CN 221185536 U CN221185536 U CN 221185536U
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- 238000009434 installation Methods 0.000 claims description 7
- 238000003754 machining Methods 0.000 description 7
- 230000009977 dual effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model relates to a double-conicity built-in expansion tool, which comprises: the device comprises a fixed mounting plate, a driving device, a double-taper mandrel and a double-taper expansion chuck, wherein the double-taper mandrel is connected with the driving device and used as a power source for driving the double-taper mandrel to move, and a first taper surface and a second taper surface are arranged on the outer wall of the double-taper mandrel; the driving device drives the double-taper mandrel to extend into the double-taper expansion chuck. According to the double-taper built-in expansion tool, the fixed mounting plate is used as a part connected with other equipment or a workbench through the whole tool, the driving device drives the double-taper mandrel to linearly move and extend into the double-taper expansion chuck, and after the double-taper expansion chuck is opened, the shaft workpiece to be machined is tightly pressed and attached to two taper surfaces in the double-taper expansion chuck, so that the shaft workpiece to be machined is stably clamped through the two taper surfaces, the structure is simple, the cost is low, the occupied space is small, and the double-taper built-in expansion tool is applicable to shaft workpieces with various diameters.
Description
Technical Field
The utility model relates to the technical field of tools, in particular to a double-conicity built-in expansion tool.
Background
At present, in the machine manufacturing industry, workpieces are clamped and fixed in the machining processes of drilling machines, grinding machines and the like, but because the specific structures of the workpieces are different, the required clamping tool structures are also quite different, for example: for parts with longer machining axis direction, the existing tool is adopted for clamping, and the parts are longer and unstable in clamping, so that the problem that the machining precision is affected due to the fact that the positions of the parts are deviated due to acting force between a machining tool and the parts possibly exists in the machining process; the chuck can be used for clamping, but the cost of the chuck is high, the occupied space is large, interference with a cutter is easy to occur, and the machining precision and efficiency are affected.
Therefore, how to provide an internal expansion type clamping tool with small occupied space and low cost is a technical problem to be solved by the person skilled in the art.
Disclosure of utility model
Therefore, the utility model aims to solve the technical problems that the clamping force of the existing simple tool is insufficient to provide stable clamping or clamping of a chuck for longer parts in the prior art, and the machining is inconvenient easily caused.
In order to solve the technical problems, the utility model provides a double-cone built-in expansion tool, which comprises: a fixed mounting plate; a driving device fixedly mounted on the fixed mounting plate; the double-taper mandrel is connected with the driving device, the driving device is used as a power source for driving the double-taper mandrel to move, and a first taper surface and a second taper surface are arranged on the outer wall of the double-taper mandrel; the double-taper expansion chuck is arranged on the fixed mounting plate, the driving device drives the double-taper mandrel to extend into the double-taper expansion chuck, and the double-taper mandrel and the double-taper expansion chuck are coaxially arranged.
In one embodiment of the present utility model, the inner wall of the double-cone expansion chuck is provided with a third conical surface and a fourth conical surface, the third conical surface is contacted with the first conical surface, and the fourth conical surface is contacted with the second conical surface.
In one embodiment of the utility model, the tool further comprises a positioning seat, and the positioning seat is installed on the double-taper expansion clamp.
In one embodiment of the utility model, the double-cone expansion chuck comprises a chuck mounting chassis and a group of clamping pieces, wherein the chuck mounting chassis is mounted on a fixed mounting plate, one end of the group of clamping pieces is connected with the chuck mounting chassis, the group of clamping pieces are arranged in an annular array manner, the cross section of the group of clamping pieces is annular, gaps are arranged between the group of clamping pieces, and a conical surface III and a conical surface IV are arranged on the inner walls of the clamping pieces.
In one embodiment of the utility model, the chuck mounting chassis is disc-shaped, and a circular through hole I is arranged at the center of the chuck mounting chassis and is used for the double-cone mandrel to pass through.
In one embodiment of the utility model, the end surface of the fixed mounting plate, which is close to the double-cone expansion chuck, is provided with a circular groove, and one end of the chuck mounting chassis is arranged in the circular groove.
In one embodiment of the present utility model, a second circular through hole is provided at the center of the circular groove, and the second circular through hole and the first circular through hole are coaxially disposed, and the second circular through hole is used for the double-cone mandrel to pass through.
In one embodiment of the present utility model, the diameter of the first conical surface is larger than that of the second conical surface, and the inside of the double-cone expansion chuck gradually contracts along the extending direction of the driving device driving the double-cone mandrel.
In one embodiment of the utility model, a first step is arranged on the outer wall of the chuck mounting chassis, a second limit step is arranged on the inner wall of the positioning seat, the first step is contacted with the second limit step, a third circular through hole is arranged in the center of the positioning seat, and the double-cone expansion chuck penetrates through the third circular through hole.
In one embodiment of the utility model, the driving means is a cylinder.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
The double-taper built-in expansion tool is used for clamping a workpiece to be machined of a shaft, and comprises a fixed mounting plate, a driving device, a double-taper mandrel and a double-taper expansion chuck.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings, in which
FIG. 1 is a schematic structural view of a double-cone built-in expansion tool of the present utility model;
FIG. 2 is a left side view of the dual cone internal expansion tooling of the present utility model;
FIG. 3 is a front view of the dual cone internal expansion tooling of the present utility model;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3 in accordance with the present utility model;
Fig. 5 is an enlarged view of a portion of fig. 4 a in accordance with the present utility model.
Description of the specification reference numerals: the device comprises a fixed mounting plate 1, a circular groove 11, a circular through hole II 12, a driving device 2, a double-cone mandrel 3, a first conical surface 31, a second conical surface 32, a double-cone expansion chuck 4, a third conical surface 41, a first step 412, a fourth conical surface 42, a chuck mounting chassis 43, a first circular through hole 431, a clamping piece 44, a positioning seat 5, a second limiting step 51 and a third circular through hole 52.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1 to 5, the double-cone internal expansion tool of the present utility model includes: the device comprises a fixed mounting plate 1, a driving device 2, a double-cone mandrel 3, a double-cone expansion chuck 4 and the like; the driving device 2 is fixedly arranged on the fixed mounting plate 1, the driving device 2 is an air cylinder, and the driving device 2 is a telescopic air cylinder; the double-taper mandrel 3 is connected with the driving device 2, the driving device 2 is used as a power source for driving the double-taper mandrel 3 to move, and a first conical surface 31 and a second conical surface 32 are arranged on the outer wall of the double-taper mandrel 3; the double-taper expansion chuck 4 is arranged on the fixed mounting plate 1, the driving device 2 drives the double-taper mandrel 3 to extend into the double-taper expansion chuck 4, and the double-taper mandrel 3 and the double-taper expansion chuck 4 are coaxially arranged. The inner wall of the double-cone expansion chuck 4 is provided with a third conical surface 41 and a fourth conical surface 42, the third conical surface 41 is contacted with the first conical surface 31, and the fourth conical surface 42 is contacted with the second conical surface 32. The driving device 2 provides driving force to drive the double-taper mandrel 3 to be inserted into the double-taper expansion chuck 4, so that the double-taper expansion chuck 4 is unfolded, the double-taper expansion chuck 4 is used for clamping a workpiece, two contact surface conical surfaces III 41 and four conical surfaces 42 are arranged on the inner wall of the double-taper expansion chuck 4, and the two conical surfaces are uniformly pressed on the outer wall of the workpiece to be processed, so that two clamping positions are formed, and the purpose of clamping and fixing the workpiece to be processed more stably is achieved.
In the above structure, the double-cone expansion collet 4 comprises a collet mounting chassis 43 and a group of clamping pieces 44, the collet mounting chassis 43 is mounted on the fixed mounting plate 1, one end of the group of clamping pieces 44 is connected with the collet mounting chassis 43, the group of clamping pieces 44 are arranged in a ring-shaped array, the cross section of the group of clamping pieces 44 is circular, a gap 45 is arranged between the group of clamping pieces 44, and a conical surface III 41 and a conical surface IV 42 are arranged on the inner wall of the clamping piece 44.
In the above structure, the collet mounting base 43 is disc-shaped, and a circular through hole 431 is provided at the center of the collet mounting base 43, and the circular through hole 431 is used for the double-cone mandrel 3 to pass through. The end face, close to the double-cone expansion chuck 4, of the fixed mounting plate 1 is provided with a circular groove 11, and one end of the chuck mounting chassis 43 is arranged in the circular groove 11. The center position of the circular groove 11 is provided with a circular through hole II 12, the circular through hole II 12 and a circular through hole I431 are coaxially arranged, and the circular through hole II 12 is used for the double-cone mandrel 3 to pass through.
In the above structure, the diameter of the first conical surface 31 is larger than that of the second conical surface 32, and the inside of the double-cone expansion chuck 4 gradually contracts along the extending direction of the driving device 2 driving the double-cone mandrel 3. The whole tapered setting that is of double-cone dabber 3, and the one end that drive arrangement 2 was kept away from to double-cone dabber 3 sets up to the plane, double-cone dabber 3 is gradually shrink form along drive arrangement 2 drive double-cone dabber 3 direction of stretching out.
In the structure, the tool further comprises a positioning seat 5, and the positioning seat 5 is arranged on the double-taper expansion chuck 4. The outer wall of the chuck mounting chassis 43 is provided with a first step 412, the inner wall of the positioning seat 5 is provided with a second limit step 51, the first step 412 is contacted with the second limit step 51, the center of the positioning seat 5 is provided with a third circular through hole 52, and the double-cone expansion chuck 4 penetrates through the third circular through hole 52. A built-in sealing ring is arranged between the inner wall of the third circular through hole 52 and the outer wall of the chuck mounting chassis 43. The positioning seat 5 can compress tightly the location to the chuck installation chassis 43, and the built-in sealing washer of setting between positioning seat 5 and chuck installation chassis 43 can play dirt-proof effect. The positioning seat 5 is locked to the collet mounting chassis 43 by a set of locking bolts.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.
Claims (10)
1. The utility model provides a built-in inflation frock of double conicity which characterized in that includes:
A fixed mounting plate;
A driving device fixedly mounted on the fixed mounting plate;
The double-taper mandrel is connected with the driving device, the driving device is used as a power source for driving the double-taper mandrel to move, and a first taper surface and a second taper surface are arranged on the outer wall of the double-taper mandrel;
the double-taper expansion chuck is arranged on the fixed mounting plate, the driving device drives the double-taper mandrel to extend into the double-taper expansion chuck, and the double-taper mandrel and the double-taper expansion chuck are coaxially arranged.
2. The double-taper built-in expansion tool according to claim 1, wherein: the inner wall of the double-cone expansion chuck is provided with a third conical surface and a fourth conical surface, the third conical surface is contacted with the first conical surface, and the fourth conical surface is contacted with the second conical surface.
3. The double-taper built-in expansion tool according to claim 1 or 2, wherein: the tool also comprises a positioning seat, and the positioning seat is arranged on the double-taper expansion clamp.
4. The double-taper built-in expansion tool according to claim 3, wherein: the double-cone expansion chuck comprises a chuck installation chassis and a group of clamping pieces, wherein the chuck installation chassis is installed on a fixed installation plate, one end of the group of clamping pieces is connected with the chuck installation chassis, the group of clamping pieces are arranged in an annular array mode, the cross section of the group of clamping pieces is annular, gaps are formed between the group of clamping pieces, and a conical surface III and a conical surface IV are arranged on the inner wall of the clamping pieces.
5. The double-taper built-in expansion tool according to claim 4, wherein: the chuck mounting chassis is disc-shaped, and a circular through hole I is formed in the center of the chuck mounting chassis and used for allowing the double-cone mandrel to pass through.
6. The double-taper built-in expansion tool according to claim 5, wherein: the end face, close to the double-cone expansion chuck, of the fixed mounting plate is provided with a circular groove, and one end of the chuck mounting chassis is arranged in the circular groove.
7. The double-taper built-in expansion tool according to claim 6, wherein: the center position of circular recess is equipped with circular through-hole two, circular through-hole two and circular through-hole one coaxial setting, circular through-hole two is used for supplying the double conicity dabber to pass.
8. The double-taper built-in expansion tool according to claim 1, wherein: the diameter of the first conical surface is larger than that of the second conical surface, and the inside of the double-conical expansion chuck gradually contracts along the extending direction of the driving device driving the double-conical mandrel.
9. The double-taper built-in expansion tool according to claim 4, wherein: the outer wall of the chuck installation chassis is provided with a first step, the inner wall of the positioning seat is provided with a second limiting step, the first step is contacted with the second limiting step, the center of the positioning seat is provided with a third circular through hole, and the double-cone expansion chuck penetrates through the third circular through hole.
10. The double-taper built-in expansion tool according to claim 1, wherein: the driving device is an air cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322442755.4U CN221185536U (en) | 2023-09-08 | 2023-09-08 | Double-conicity built-in expansion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322442755.4U CN221185536U (en) | 2023-09-08 | 2023-09-08 | Double-conicity built-in expansion tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221185536U true CN221185536U (en) | 2024-06-21 |
Family
ID=91528913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322442755.4U Active CN221185536U (en) | 2023-09-08 | 2023-09-08 | Double-conicity built-in expansion tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221185536U (en) |
-
2023
- 2023-09-08 CN CN202322442755.4U patent/CN221185536U/en active Active
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