CN216065603U - Expansion type clamp - Google Patents
Expansion type clamp Download PDFInfo
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- CN216065603U CN216065603U CN202122573293.0U CN202122573293U CN216065603U CN 216065603 U CN216065603 U CN 216065603U CN 202122573293 U CN202122573293 U CN 202122573293U CN 216065603 U CN216065603 U CN 216065603U
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- expansion sleeve
- hole
- jacking shaft
- shaft
- pressing block
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Abstract
The utility model discloses an expansion type clamp which comprises a mounting seat, a truncated cone-shaped jacking shaft arranged on the mounting seat, and an expansion sleeve sleeved on the jacking shaft, wherein the molded surface of an inner hole of the expansion sleeve is matched with the outer molded surface of the jacking shaft; a through hole is formed between the expansion sleeve and the top shaft, one end of a bolt penetrates through the through hole and is fixed on the mounting seat, a pressing block is arranged at the other end of the bolt, and the pressing block is pressed on the expansion sleeve through a nut. The through hole of the steering knuckle body to be processed is sleeved on the expansion sleeve, the pressing block is sleeved on the bolt, the nut is screwed down to enable the pressing block to press the expansion sleeve, the expansion sleeve is forced to extrude towards the jacking shaft, the expansion sleeve is expanded around under the action of the profile of the truncated cone-shaped jacking shaft, and the through hole of the steering knuckle is tensioned, so that clamping and fixing are achieved. The installation seat is installed on a rotary main shaft of a machine tool, so that the machining on multiple surfaces of the steering knuckle can be realized on one station.
Description
Technical Field
The utility model relates to the field of machining, in particular to an expansion type clamp.
Background
When machining a knuckle body part, it is necessary to mill a plurality of surfaces of the knuckle body. In the past, the processing mode is that a plurality of stations are divided, and a plurality of sets of clamps are used for clamping and processing, so that the stations are wasted, and the production efficiency is low. The existing rotary fixture is needed to clamp the steering knuckle body, so that multiple faces of the steering knuckle body can be conveniently machined on one station. The existing rotary clamp mostly adopts a clamping jaw clamping and fixing mode to realize clamping, but the outer surface of the steering knuckle body is complex and is inconvenient to clamp; and the outer surfaces of a plurality of positions of the steering knuckle body are processing surfaces, and after the steering knuckle body is clamped by the clamping jaw, the clamping jaw can interfere with a machine tool cutter and cannot process. Therefore, a rotary clamp suitable for clamping a steering knuckle body is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an expansion type clamp which can conveniently clamp and fix a steering knuckle body by utilizing a mounting hole of the steering knuckle body and cannot influence the machining of a machine tool cutter on the outer surface of the steering knuckle body.
The utility model is realized by the following technical scheme:
an expansion type clamp comprises a mounting seat, a truncated cone-shaped jacking shaft mounted on the mounting seat, and an expansion sleeve sleeved on the jacking shaft, wherein the molded surface of an inner hole of the expansion sleeve is matched with the outer molded surface of the jacking shaft; a through hole is formed between the expansion sleeve and the top shaft, one end of a bolt penetrates through the through hole and is fixed on the mounting seat, a pressing block is arranged at the other end of the bolt, and the pressing block is pressed on the expansion sleeve through a nut. The through hole of the steering knuckle body to be processed is sleeved on the expansion sleeve, the pressing block is sleeved on the bolt, the nut is screwed down to enable the pressing block to press the expansion sleeve, the expansion sleeve is forced to extrude towards the jacking shaft, the expansion sleeve is expanded around under the action of the profile of the truncated cone-shaped jacking shaft, and the through hole of the steering knuckle is tensioned, so that clamping and fixing are achieved. The installation seat is installed on a rotary main shaft of a machine tool, so that the machining on multiple surfaces of the steering knuckle can be realized on one station.
Further: the expansion sleeve is a petal-shaped sleeve, and gap openings between petals of the petal-shaped sleeve are arranged in a staggered and parallel mode. Avoid stress concentration at one end of the expansion sleeve to cause plastic deformation or cracking.
Further: a round gap is formed in the bottom of a gap between each petal of the petal-shaped sleeve, and the diameter of the round gap is larger than the width of the gap. Reducing stress concentration at the bottom of the gap.
Further: the top shaft is arranged on the mounting seat through a flange plate.
Further: and an elastic gasket is arranged between the expansion sleeve and the jacking shaft.
Further: the elastic gasket is laid on the top surface of the top shaft.
Compared with the prior art, the utility model has the following advantages:
firstly, the steering knuckle body is sleeved on the expansion sleeve, the pressing block is pressed, and the nut is screwed down to finish clamping. The clamping of the steering knuckle body can be realized.
The utility model has simple structure and convenient operation.
Thirdly, the expansion sleeve has reasonable structural design, small stress concentration and long service life.
Drawings
FIG. 1 is a schematic semi-sectional view of the present invention;
FIG. 2 is an isometric schematic view of the present invention;
FIG. 3 is a schematic view of the present invention for clamping a workpiece.
In the figure: 1. a mounting seat; 2. a top shaft; 2.1, a flange plate; 3. an expansion sleeve; 3.1, clearance; 3.11, a notch; 4. briquetting; 5. a bolt; 6. a nut; 7. an elastic pad; 8. a knuckle body.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in the figure:
an expansion type clamp comprises a mounting seat 1, a truncated cone-shaped jacking shaft 2 mounted on the mounting seat 1, and an expansion sleeve 3 sleeved on the jacking shaft 2, wherein the molded surface of an inner hole of the expansion sleeve 3 is matched with the outer molded surface of the jacking shaft 2; a through hole is formed between the expansion sleeve 3 and the top shaft 2, one end of a bolt 5 penetrates through the through hole and is fixed on the mounting base 1, a pressing block 4 is arranged at the other end of the bolt 5, and the pressing block 4 is pressed on the expansion sleeve 3 through a nut 6.
The expansion sleeve 3 is a petal-shaped sleeve, and gaps 3.1 among petals of the petal-shaped sleeve are arranged in a staggered and parallel mode. The bottom of a gap 3.1 between each petal of the petal-shaped sleeve is provided with a circular notch 3.11, and the diameter of the circular notch 3.11 is larger than the width of the gap 3.1.
The apical axis passes through the ring flange 2.1 to be installed on mount pad 1, is equipped with elastic gasket 7 between inflation cover 3 and apical axis 2, and elastic gasket 7 is laid on the top surface of apical axis 2.
The working mode of the embodiment is as follows:
a through hole of a steering knuckle body 8 to be processed is sleeved on an expansion sleeve 3, a pressing block 4 is sleeved on a bolt 5, a nut 6 is screwed down to enable the pressing block 4 to tightly press the expansion sleeve 3, the expansion sleeve 3 is forced to be extruded towards a jacking shaft 2, the expansion sleeve 3 is expanded around under the action of a profile of the truncated cone-shaped jacking shaft 2, and the through hole of the steering knuckle body 8 is tightened, so that clamping and fixing are achieved. The installation seat 1 is installed on a rotary main shaft of a machine tool, so that the machining of a plurality of surfaces of the steering knuckle body can be realized on one station.
When the workpiece is unloaded, the nut 6 is unscrewed, and the expansion sleeve 3 returns to the original position and contracts under the action of the elastic gasket 7. At this time, the knuckle body 8 is taken down
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an expanding clamp which characterized in that: the device comprises a mounting seat (1), a truncated cone-shaped jacking shaft (2) mounted on the mounting seat (1), and an expansion sleeve (3) sleeved on the jacking shaft (2), wherein the molded surface of an inner hole of the expansion sleeve (3) is matched with the outer molded surface of the jacking shaft (2); a through hole is formed in the middle of the expansion sleeve (3) and the jacking shaft (2), one end of a bolt (5) penetrates through the through hole and is fixed on the mounting seat (1), a pressing block (4) is arranged at the other end of the bolt (5), and the pressing block (4) is pressed on the expansion sleeve (3) through a nut (6).
2. The expanding clamp of claim 1, wherein: the expansion sleeve (3) is a petal-shaped sleeve, and gaps (3.1) among the petals of the petal-shaped sleeve are opened in a staggered and parallel mode.
3. An expanding clamp according to claim 2, characterised in that: the bottom of a gap (3.1) between each petal of the petal-shaped sleeve is provided with a circular notch (3.11), and the diameter of the circular notch (3.11) is larger than the width of the gap (3.1).
4. The expanding clamp of claim 1, wherein: the jacking shaft (2) is arranged on the mounting seat (1) through a flange plate (2.1).
5. The expanding clamp of claim 1, wherein: an elastic gasket (7) is arranged between the expansion sleeve (3) and the jacking shaft (2).
6. An expanding clamp according to claim 5, characterised in that: the elastic gasket (7) is laid on the top surface of the top shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122573293.0U CN216065603U (en) | 2021-10-26 | 2021-10-26 | Expansion type clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122573293.0U CN216065603U (en) | 2021-10-26 | 2021-10-26 | Expansion type clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216065603U true CN216065603U (en) | 2022-03-18 |
Family
ID=80641096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122573293.0U Active CN216065603U (en) | 2021-10-26 | 2021-10-26 | Expansion type clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216065603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952348A (en) * | 2022-07-11 | 2022-08-30 | 芜湖泰吉机械有限公司 | Knuckle milling process frock |
-
2021
- 2021-10-26 CN CN202122573293.0U patent/CN216065603U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952348A (en) * | 2022-07-11 | 2022-08-30 | 芜湖泰吉机械有限公司 | Knuckle milling process frock |
| CN114952348B (en) * | 2022-07-11 | 2024-03-22 | 芜湖泰吉机械有限公司 | Knuckle milling tool |
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