CN212761385U - Gear shaft inner hole keyway planing fixture - Google Patents
Gear shaft inner hole keyway planing fixture Download PDFInfo
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- CN212761385U CN212761385U CN202021539499.0U CN202021539499U CN212761385U CN 212761385 U CN212761385 U CN 212761385U CN 202021539499 U CN202021539499 U CN 202021539499U CN 212761385 U CN212761385 U CN 212761385U
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- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000003825 pressing Methods 0.000 claims abstract description 41
- 210000000078 claw Anatomy 0.000 claims abstract description 15
- 238000003754 machining Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a gear shaft hole keyway planing fixture, its characterized in that: comprises a bottom plate, a centering mechanism, a pressing mechanism and a workpiece; a through hole is formed in the center of the bottom plate; the centering mechanism is positioned through a positioning hole and fixedly arranged on the lower end face of the bottom plate; the pressing mechanism is fixedly arranged on the upper end surface of the bottom plate; the workpiece penetrates through the through hole of the bottom plate, and the end face of the workpiece gear is tightly attached to the upper end face of the bottom plate; the centering mechanism comprises a centering base and a centering claw; the centering base is circular, a through hole is formed in the center of the centering base, three radial track grooves are formed in the lower end face of the centering base and are uniformly distributed around the central shaft, and an air inlet hole and an air outlet hole are formed in the cylindrical surface of the centering base; the air inlet and the air outlet are respectively externally connected with an air pipe; the fixture automatically centers the workpiece by using a pneumatic device to drive the self-centering mechanism, so that the positioning speed of the workpiece is improved.
Description
Technical Field
The utility model belongs to the technical field of auxiliary fixtures, concretely relates to gear shaft hole keyway planing fixture.
Background
The two side surfaces of the shaft groove play roles in axial positioning and torque transmission in connection, so that the requirement on the dimensional accuracy of the width of the shaft groove is high, and the requirement on the symmetry degree of the two side surfaces of the shaft groove relative to the axis of the shaft is also high. The clamping of the shaft workpiece not only needs to ensure the stability and reliability of the workpiece, but also needs to ensure that the axis position of the workpiece is kept unchanged so as to ensure that the central plane of the shaft groove passes through the axis. During machining, the clamp can only clamp one workpiece at a time, so that the rapid clamping of the workpiece is the key for improving the production efficiency.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to prior art exists, the to-be-solved technical problem of the utility model is to provide a can reach quick location clamping work piece, can guarantee the reliable and stable of work piece again in the course of working, the axis position keeps the gear shaft hole keyway planing anchor clamps of unchangeable relatively.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a gear shaft hole keyway planing fixture which characterized in that: comprises a bottom plate, a centering mechanism, a pressing mechanism and a workpiece;
a through hole is formed in the center of the bottom plate;
the centering mechanism is positioned through a positioning hole and fixedly arranged on the lower end face of the bottom plate;
the pressing mechanism is fixedly arranged on the upper end surface of the bottom plate;
the workpiece penetrates through the through hole of the bottom plate, and the end face of the workpiece gear is tightly attached to the upper end face of the bottom plate;
further, the centering mechanism comprises a centering base and a centering claw; the centering base is circular, a through hole is formed in the center of the centering base, three radial track grooves are formed in the lower end face of the centering base and are uniformly distributed around the central shaft, and an air inlet hole and an air outlet hole are formed in the cylindrical surface of the centering base; the air inlet and the air outlet are respectively externally connected with an air pipe; the three centering claws are respectively arranged in three track grooves on the lower end surface of the centering base;
furthermore, two pressing mechanisms are arranged and are symmetrically installed and fixed on two sides of the central shaft of the bottom plate respectively; the pressing mechanism comprises a pressing base, a telescopic rod and a pressing block, and the pressing base is fixedly arranged on the bottom plate; the lower end face of the telescopic rod is arranged in the pressing base, and the upper end of the telescopic rod is fixedly provided with a pressing block; an oil inlet hole and an oil return hole are formed in one side, far away from the workpiece, of the pressing mechanism; the oil inlet hole and the oil return hole are respectively externally connected with an oil pipe;
furthermore, the compressing block on the compressing mechanism ascends and descends along with the synchronous stretching of the telescopic rod, and the compressing block can horizontally rotate.
Furthermore, an air passage loop in the centering base is simultaneously communicated with a mechanism for pushing the three centering claws to reciprocate, so that synchronous extension of the three centering claws is ensured.
The utility model has the advantages that:
1. the clamp automatically centers the workpiece by using a pneumatic device to drive a self-centering mechanism, so that the positioning speed of the workpiece is improved;
2. the workpiece is compressed and fixed through the hydraulic driving compressing mechanism, so that the stability and reliability of the workpiece in the machining process are ensured, and the axis position is kept relatively unchanged.
Drawings
Fig. 1 is the gear shaft hole keyway planing fixture schematic diagram of the utility model.
Figure 2 is gear shaft hole keyway planing fixture cross-sectional view.
Figure 3 is gear shaft hole keyway planing fixture centering mechanism picture.
Figure 4 is gear shaft hole keyway planing fixture compress tightly mechanism picture.
In the figure: the device comprises a base plate 1, a centering mechanism 2, a pressing mechanism 3, a workpiece 4, a centering base 5, a centering claw 6, an air inlet 7, an air outlet 8, a pressing base 9, a telescopic rod 10, a pressing block 11, an oil inlet 12 and an oil return hole 13.
Detailed Description
The following detailed description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.
As shown in figure 1, a gear shaft inner hole keyway planing clamp is characterized in that: comprises a bottom plate 1, a centering mechanism 2, a pressing mechanism 3 and a workpiece 4;
a through hole is formed in the center of the bottom plate 1;
the centering mechanism 2 is positioned through a positioning hole and fixedly arranged on the lower end face of the bottom plate 1;
the pressing mechanism 3 is fixedly arranged on the upper end surface of the bottom plate 1;
the workpiece 4 penetrates through the through hole of the bottom plate 1, and the gear end face of the workpiece 4 is tightly attached to the upper end face of the bottom plate 1;
in practical application, the centering mechanism 2 comprises a centering base 5 and a centering claw 6; the centering base 5 is circular, a through hole is formed in the center of the centering base 5, three radial track grooves are formed in the lower end face and evenly distributed around a central shaft, and an air inlet hole 7 and an air outlet hole 8 are formed in the cylindrical surface of the centering base 5; the air inlet hole 7 and the air outlet hole 8 are respectively externally connected with an air pipe; the three centering claws 6 are respectively arranged in three track grooves on the lower end surface of the centering base 5;
in practical application, two pressing mechanisms 3 are arranged and are symmetrically installed and fixed on two sides of the central shaft of the bottom plate 1 respectively; the pressing mechanism comprises a pressing base 9, an expansion rod 10 and a pressing block 11, and the pressing base 9 is fixedly arranged on the bottom plate 1; the lower end face of the telescopic rod 10 is arranged in the pressing base 9, and the upper end of the telescopic rod is fixedly provided with a pressing block 11; an oil inlet hole 12 and an oil return hole 13 are formed in one side, far away from the workpiece, of the pressing mechanism 3; the oil inlet hole 12 and the oil return hole 13 are respectively externally connected with an oil pipe;
in practical application, the pressing block 11 on the pressing mechanism 3 synchronously extends and retracts along with the telescopic rod 10 to ascend and descend, and the pressing block 11 can horizontally rotate.
In practical application, the air passage loop in the centering base 5 is simultaneously communicated with a mechanism for pushing the three centering claws 6 to reciprocate, so that the three centering claws 6 can be ensured to synchronously stretch and retract.
In summary, in the utility model, the fixture drives the self-centering mechanism to automatically center the workpiece by using the pneumatic device, so as to improve the positioning speed of the workpiece; the workpiece is compressed and fixed through the hydraulic driving compressing mechanism, so that the stability and reliability of the workpiece in the machining process are ensured, and the axis position is kept relatively unchanged.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.
Claims (5)
1. The utility model provides a gear shaft hole keyway planing fixture which characterized in that: comprises a bottom plate (1), a centering mechanism (2), a pressing mechanism (3) and a workpiece (4);
a through hole is formed in the center of the bottom plate (1);
the centering mechanism (2) is positioned through a positioning hole and fixedly arranged on the lower end face of the bottom plate (1);
the pressing mechanism (3) is fixedly arranged on the upper end surface of the bottom plate (1);
the workpiece (4) penetrates through the through hole of the bottom plate (1), and the gear end face of the workpiece (4) is tightly attached to the upper end face of the bottom plate (1).
2. The gear shaft inner bore keyway planing fixture of claim 1, wherein: the centering mechanism (2) comprises a centering base (5) and a centering claw (6); the centering base (5) is circular, a through hole is formed in the center of the centering base (5), three radial track grooves are formed in the lower end face and evenly distributed around a central shaft, and an air inlet hole (7) and an air outlet hole (8) are formed in the cylindrical surface of the centering base (5); the air inlet hole (7) and the air outlet hole (8) are respectively externally connected with an air pipe; the number of the centering claws (6) is three, and the three centering claws are respectively arranged in three track grooves on the lower end surface of the centering base (5).
3. The gear shaft inner bore keyway planing fixture of claim 1, wherein: two pressing mechanisms (3) are arranged and are symmetrically arranged and fixed on two sides of a central shaft of the bottom plate (1) respectively; the pressing mechanism comprises a pressing base (9), an expansion rod (10) and a pressing block (11), and the pressing base (9) is fixedly arranged on the bottom plate (1); the lower end face of the telescopic rod (10) is arranged in the pressing base (9), and the upper end of the telescopic rod is fixedly provided with a pressing block (11); an oil inlet hole (12) and an oil return hole (13) are formed in one side, far away from the workpiece, of the pressing mechanism (3); the oil inlet hole (12) and the oil return hole (13) are respectively externally connected with an oil pipe.
4. The gear shaft inner hole keyway planing fixture of claim 1 or 3, wherein: the pressing block (11) on the pressing mechanism (3) synchronously extends and retracts along with the telescopic rod (10), ascends and descends, and the pressing block (11) can horizontally rotate.
5. The gear shaft inner bore keyway planing fixture of claim 2, wherein: and an air passage loop in the centering base (5) is simultaneously communicated with a mechanism for pushing the three centering claws (6) to reciprocate, so that the three centering claws (6) can be synchronously stretched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021539499.0U CN212761385U (en) | 2020-07-30 | 2020-07-30 | Gear shaft inner hole keyway planing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021539499.0U CN212761385U (en) | 2020-07-30 | 2020-07-30 | Gear shaft inner hole keyway planing fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212761385U true CN212761385U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021539499.0U Active CN212761385U (en) | 2020-07-30 | 2020-07-30 | Gear shaft inner hole keyway planing fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212761385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115476094A (en) * | 2022-09-20 | 2022-12-16 | 利纳马汽车系统(重庆)有限公司 | Gearbox gear shaft flaw detection welding detection mechanism |
-
2020
- 2020-07-30 CN CN202021539499.0U patent/CN212761385U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115476094A (en) * | 2022-09-20 | 2022-12-16 | 利纳马汽车系统(重庆)有限公司 | Gearbox gear shaft flaw detection welding detection mechanism |
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