CN216151365U - Pre-positioning clamp for machining hollow shaft tooth parts - Google Patents
Pre-positioning clamp for machining hollow shaft tooth parts Download PDFInfo
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- CN216151365U CN216151365U CN202122285460.1U CN202122285460U CN216151365U CN 216151365 U CN216151365 U CN 216151365U CN 202122285460 U CN202122285460 U CN 202122285460U CN 216151365 U CN216151365 U CN 216151365U
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- positioning
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Abstract
The utility model relates to a pre-positioning clamp for machining hollow shaft teeth parts, which comprises a base, an expansion sleeve and a pre-positioning shaft, wherein the top surface of the base is provided with a positioning hole, the expansion sleeve is sleeved in the positioning hole, and the pre-positioning shaft is sleeved in the expansion sleeve. The pre-positioning fixture comprises the pre-positioning shaft, the upper end of the pre-positioning shaft is guided by an angle, and a workpiece enters the fixture along the pre-positioning shaft in the process of loading the manipulator, so that the interference between the workpiece and the fixture is avoided.
Description
Technical Field
The utility model belongs to the field of machining, relates to a clamp, and particularly relates to a pre-positioning clamp for machining hollow shaft tooth parts.
Background
Hollow shaft tooth class part need be fixed through anchor clamps when processing, and prior art's anchor clamps include a locating hole, and work piece bottom hollow shaft inserts the fixed of the downthehole realization work piece of locating hole. The design of the clamp in the prior art has the defects that the fit clearance between a workpiece and the clamp positioning hole is only 0.1mm, and the precision of the mechanical arm for grabbing the workpiece cannot ensure that the workpiece accurately enters the clamp positioning hole.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a pre-positioning clamp for machining hollow shaft tooth parts, which can avoid the interference between a workpiece and the clamp.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
a pre-positioning clamp for machining hollow shaft teeth comprises a base, an expansion sleeve and a pre-positioning shaft, wherein a positioning hole is formed in the top surface of the base, the expansion sleeve is sleeved in the positioning hole, and the pre-positioning shaft is sleeved in the expansion sleeve.
Moreover, the pre-positioning shaft comprises a first section, a transition section and a second section, and the first section is in interference fit with the inner wall of the expansion sleeve; the second section is in clearance fit with the shaft hole of the workpiece, and the transition section is connected with the first section and the second section.
And the bottom of the second section is arranged in the positioning hole of the base, and the top of the second section is arranged outside the positioning hole and is slightly higher than the top surface of the base.
Moreover, the top end of the second section is provided with a chamfer.
And the locking screw is transversely arranged on the side wall of the base in a penetrating manner and used for locking the expansion sleeve.
The utility model has the advantages and positive effects that:
the pre-positioning fixture comprises the pre-positioning shaft, the upper end of the pre-positioning shaft is guided by an angle, and a workpiece enters the fixture along the pre-positioning shaft in the process of loading the manipulator, so that the interference between the workpiece and the fixture is avoided.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a block diagram of a pre-positioned shaft.
Detailed Description
The present invention is further illustrated by the following specific examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the utility model.
A pre-positioning clamp for machining hollow shaft teeth comprises a base 6, an expansion sleeve 4, a locking screw 5 and a pre-positioning shaft 3, wherein a positioning hole 2 is formed in the top surface of the base 6, the expansion sleeve 4 is sleeved in the positioning hole 2, and the pre-positioning shaft 3 is sleeved in the expansion sleeve 4. The locking screw 5 transversely penetrates through the side wall of the base 6, and the locking screw 5 is used for locking the expansion sleeve 4.
The pre-positioning shaft 3 comprises a first section 3-3, a transition section 3-2 and a second section 3-1, the diameter of the first section 3-3 is larger than that of the second section 3-1, and the first section 3-3 is in interference fit with the inner wall of the expansion sleeve 4. The second section 3-1 is in clearance fit with the shaft hole of the workpiece 1. The transition section 3-2 is used to connect the first section 3-3 with the second section 3-1.
The bottom of the second section 3-1 is arranged in the positioning hole 2 of the base 6, and the top of the second section is arranged outside the positioning hole 2 and is slightly higher than the top surface of the base 6. And the robot is convenient to recognize.
The top end of the second section 3-1 is also provided with a chamfer angle, so that the workpiece 1 can be conveniently sleeved. The workpiece 1 enters the fixture along the pre-positioning device, and interference between the workpiece 1 and the fixture is avoided.
The base 6 is designed according to the shape of the workpiece 1, so that the workpiece 1 can be stably placed on the base 6.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the utility model, and these changes and modifications are all within the scope of the present invention.
Claims (5)
1. The utility model provides a pre-positioning anchor clamps for hollow shaft tooth class parts machining which characterized in that: the device comprises a base (6), an expansion sleeve (4) and a pre-positioning shaft (3), wherein a positioning hole (2) is formed in the top surface of the base (6), the expansion sleeve (4) is sleeved in the positioning hole (2), and the pre-positioning shaft (3) is sleeved in the expansion sleeve (4).
2. The pre-positioning fixture of claim 1, wherein: the pre-positioning shaft (3) comprises a first section (3-3), a transition section (3-2) and a second section (3-1), and the first section (3-3) is in interference fit with the inner wall of the expansion sleeve (4); the second section (3-1) is in clearance fit with the shaft hole of the workpiece (1), and the transition section (3-2) is connected with the first section (3-3) and the second section (3-1).
3. The pre-positioning fixture of claim 2, wherein: the bottom of the second section (3-1) is arranged in the positioning hole (2) of the base (6), and the top of the second section is positioned outside the positioning hole (2) and is slightly higher than the top surface of the base (6).
4. The pre-positioning fixture of claim 2, wherein: the top end of the second section (3-1) is provided with a chamfer.
5. The pre-positioning fixture of claim 1, wherein: the expansion sleeve is characterized by further comprising a locking screw (5), wherein the locking screw (5) transversely penetrates through the side wall of the base (6) and is used for locking the expansion sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122285460.1U CN216151365U (en) | 2021-09-22 | 2021-09-22 | Pre-positioning clamp for machining hollow shaft tooth parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122285460.1U CN216151365U (en) | 2021-09-22 | 2021-09-22 | Pre-positioning clamp for machining hollow shaft tooth parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216151365U true CN216151365U (en) | 2022-04-01 |
Family
ID=80853112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122285460.1U Active CN216151365U (en) | 2021-09-22 | 2021-09-22 | Pre-positioning clamp for machining hollow shaft tooth parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216151365U (en) |
-
2021
- 2021-09-22 CN CN202122285460.1U patent/CN216151365U/en active Active
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