CN215508993U - Thin-wall part machining clamp - Google Patents
Thin-wall part machining clamp Download PDFInfo
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- CN215508993U CN215508993U CN202121044730.3U CN202121044730U CN215508993U CN 215508993 U CN215508993 U CN 215508993U CN 202121044730 U CN202121044730 U CN 202121044730U CN 215508993 U CN215508993 U CN 215508993U
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Abstract
The utility model belongs to the technical field of tool fixtures, and particularly relates to a fixture for processing a thin-wall part to ensure the parallelism of end faces, which comprises: the device comprises a base (1), an auxiliary gland (2), a positioning bolt (3), a rubber pad (4) and a compression bolt (5); the inner side and the outer side of the base (1) are in a stepped shaft shape, and the auxiliary gland (2) is in a circular ring shape; the positioning bolt (3) is matched with the rubber pad (4); the positioning bolt (3) is arranged on the shaft head of the base (1); the auxiliary gland (2) is matched with the compression bolt (5) for use and is used for clamping the part by the positioning bolt (3) and the rubber pad (4) and axially compressing the part; a rubber pad (4) on the positioning bolt (3) is screwed to contact with the fixed part; the clamp provided by the utility model solves the technical problem of low product percent of pass of end face deformation caused by clamping force applied to the outer diameter of the part in the process of turning the parallelism of two end faces of the existing thin-wall part, and improves the percent of pass of the processed product.
Description
Technical Field
The utility model belongs to the technical field of tool fixtures, particularly relates to a fixture for machining a thin-wall part to guarantee parallelism of end faces, and particularly relates to a fixture for machining the thin-wall part with high requirement on high precision of parallelism for turning two end faces of the thin-wall annular part.
Background
The schematic diagram of the thin-wall part related to the utility model is shown in figure 1, and the thin-wall part is a typical thin-wall part, the parallelism of two end surfaces of the thin-wall part is required to be within 0.005mm, the part has a serious deformation phenomenon during clamping, and the requirement of the parallelism of the two end surfaces is very difficult to achieve.
The main technical problems are as follows:
1. the part material is aluminium, and rigidity is poor, yielding easily.
2. The parallelism of the two end faces of the part is required to be within 0.005 mm.
3. The part has thin wall, the wall thickness is only 2mm, and severe deformation exists during clamping and turning.
The technical core problem is how to clamp parts, deformation is reduced as much as possible in the clamping and turning process, and the size requirement of a design pattern is met after machining.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: by designing the clamp for machining the thin-walled part to ensure the parallelism of the end face, the technical problem of low product yield caused by part deformation of the end face in the existing thin-walled part end face parallelism turning process is solved.
The technical scheme of the utility model is as follows: in order to achieve the purpose, the thin-wall part machining clamp is characterized by comprising a base 1, an auxiliary gland 2, a positioning bolt 3, a rubber pad 4 and a pressing bolt 5;
the base 1 is stepped, a first-stage step excircle 11 and a second-stage step excircle 12 are sequentially arranged from top to bottom, and the diameter of the first-stage step excircle 21 is smaller than that of the second-stage step excircle; a blind hole 13 is formed in the center of the section of the first-stage step outer circle 11 and used for containing a part to be processed, a plurality of threaded holes are uniformly distributed in the outer circumference of the first-stage step outer circle 11 and used for installing and matching the positioning bolt 3, the head of the front end of the positioning bolt 3 is connected with the rubber pad 4, and the inner diameter of the rubber pad 4 is matched with the outer diameter of the head of the positioning bolt 3; a threaded hole 14 is formed in the center of the bottom of the blind hole 13 and used for installing the compression bolt 5;
the auxiliary gland 2 is circular, the size of the auxiliary gland is matched with that of a part to be processed, and a hole through which the compression bolt 5 passes is formed in the center of the auxiliary gland; the auxiliary gland 2 is matched with the compression bolt 5 for use and is used for compressing the part before the part to be processed is fixed by the positioning bolt 3.
In one possible embodiment, the positioning bolts 3 are used in combination with rubber pads 4, and the number of the positioning bolts is 4 to 8 according to the size of the part.
In a possible embodiment, the rubber pad 4 is connected with the front head of the positioning bolt 3 by bonding.
In one possible embodiment, the thread of the threaded hole on the circumference of the first-stage step excircle 11 of the base 1 is a fine thread, and the lead angle of the fine thread is smaller, so that the self-locking of the thread is facilitated, and the looseness in the machining process is prevented; in addition, the fine thread has small tightening torque and is easy to tighten.
In one possible embodiment, the threaded hole on the circumference of the first step outer circle 11 of the base 1 is a threaded hole in the radial direction.
In a possible embodiment, the direction of the threaded hole on the circumference of the first step excircle 11 of the base 1 forms a certain angle α with the radial direction, the angle range α is 3-5 °, and the fixing effect of the part to be processed is enhanced.
The utility model has the beneficial effects that: by using the clamp, the clamping deformation of the thin-wall part in the turning process can be minimized, and the over-difference of the parallelism of the two end surfaces of the part caused by the deformation of the part in the processing process can be avoided. The qualification rate and the production efficiency of the processed product are improved.
Drawings
FIG. 1 is a schematic view of a thin wall part;
FIG. 2 is a schematic view of the structure of a jig according to embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a positioning bolt 3 and a rubber pad 4 in embodiment 1 of the present invention;
FIG. 4 is a schematic partial structure diagram of embodiment 2 of the present invention
In the figure, 1-base, 2-auxiliary gland, 3-positioning bolt, 4-rubber pad and 5-pressing bolt.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.
Example 1
As shown in fig. 2, the thin-wall part processing clamp is characterized by comprising a base 1, an auxiliary gland 2, a positioning bolt 3, a rubber pad 4 and a pressing bolt 5;
the base 1 is stepped, a first-stage step excircle 11 and a second-stage step excircle 12 are sequentially arranged from top to bottom, and the diameter of the first-stage step excircle 21 is smaller than that of the second-stage step excircle; a blind hole 13 is formed in the center of the section of the first-stage step outer circle 11 and used for containing a part to be processed, a plurality of threaded holes are uniformly distributed in the outer circumference of the first-stage step outer circle 11 and used for installing and matching the positioning bolt 3, as shown in fig. 3, the head of the front end of the positioning bolt 3 is connected with the rubber pad 4, and the inner diameter of the rubber pad 4 is matched with the outer diameter of the head of the positioning bolt 3; a threaded hole 14 is formed in the center of the bottom of the blind hole 13 and used for installing the compression bolt 5;
the auxiliary gland 2 is circular, the size of the auxiliary gland is matched with that of a part to be processed, and a hole through which the compression bolt 5 passes is formed in the center of the auxiliary gland; the auxiliary gland 2 is matched with the compression bolt 5 for use and is used for compressing the part before the part to be processed is fixed by the positioning bolt 3;
the positioning bolts 3 and the rubber pads 4 are used in a group matching mode, and the number of the positioning bolts is 4;
the rubber pad 4 is connected with the front end head part of the positioning bolt 3 through bonding;
the thread of the threaded hole on the circumference of the first-stage step excircle 11 of the base 1 is a fine thread;
the threaded holes in the circumference of the first-stage step excircle 11 of the base 1 are radial threaded holes.
Example 2
As shown in fig. 4, the difference between the embodiment 2 and the embodiment 1 is that the screw hole direction on the circumference of the first step outer circle 11 of the base 1 forms an angle α with the radial direction, and the angle α is 5 °.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equally replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application, and are intended to be included within the scope of the present application.
Claims (6)
1. A thin-wall part machining clamp is characterized by comprising a base (1), an auxiliary gland (2), a positioning bolt (3), a rubber pad (4) and a pressing bolt (5);
the base (1) is step-shaped, a first-stage step excircle (11) and a second-stage step excircle (12) are sequentially arranged from top to bottom, and the diameter of the first-stage step excircle (11) is smaller than that of the second-stage step excircle; a blind hole (13) is formed in the center of the section of the first-stage step outer circle (11) and used for containing a part to be machined, a plurality of threaded holes are uniformly distributed in the outer circumference of the first-stage step outer circle (11) and used for installing and matching the positioning bolt (3), the head of the front end of the positioning bolt (3) is connected with the rubber pad (4), and the inner diameter of the rubber pad (4) is matched with the outer diameter of the head of the positioning bolt (3) and used for not damaging the part; the center of the bottom of the blind hole (13) is also provided with a threaded hole (14) for installing the compression bolt (5);
the auxiliary gland (2) is circular, the size of the auxiliary gland is matched with that of a part to be processed, and a hole through which the compression bolt (5) passes is formed in the center of the auxiliary gland; the auxiliary gland (2) is matched with the pressing bolt (5) for use and is used for pressing the part to be processed before the positioning bolt (3) is used for fixing.
2. A thin-walled workpiece processing clamp as claimed in claim 1, wherein the positioning bolts (3) are used in combination with the rubber pads (4), and the number of the positioning bolts is 4 to 8 according to the size of the workpiece.
3. A thin-walled workpiece machining clamp as claimed in claim 1, wherein the rubber gasket (4) is connected with the front end head of the positioning bolt (3) through bonding.
4. A thin-walled workpiece machining clamp according to claim 1, characterized in that the thread of the threaded hole on the circumference of the first step outer circle (11) of the base (1) is a fine thread, and correspondingly, the thread of the positioning bolt (3) is a fine thread.
5. A thin-walled workpiece machining clamp according to claim 1, characterized in that the threaded holes in the circumference of the first step outer circle (11) of the base (1) are radial threaded holes.
6. A thin-walled workpiece machining clamp according to claim 1, characterized in that the direction of the threaded hole on the circumference of the first step outer circle (11) of the base (1) forms a certain angle α with the radial direction, and the angle range α is 3 ° to 5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121044730.3U CN215508993U (en) | 2021-05-14 | 2021-05-14 | Thin-wall part machining clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121044730.3U CN215508993U (en) | 2021-05-14 | 2021-05-14 | Thin-wall part machining clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215508993U true CN215508993U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121044730.3U Active CN215508993U (en) | 2021-05-14 | 2021-05-14 | Thin-wall part machining clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215508993U (en) |
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2021
- 2021-05-14 CN CN202121044730.3U patent/CN215508993U/en active Active
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