CN216966306U - Clamp system for machining base of rotary speed reducer - Google Patents
Clamp system for machining base of rotary speed reducer Download PDFInfo
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- CN216966306U CN216966306U CN202122655982.6U CN202122655982U CN216966306U CN 216966306 U CN216966306 U CN 216966306U CN 202122655982 U CN202122655982 U CN 202122655982U CN 216966306 U CN216966306 U CN 216966306U
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Abstract
The utility model discloses a clamp system for machining a rotary speed reducer base, which comprises a first-order clamp for milling a bottom foot plane on the rotary speed reducer base and a second-order clamp for machining a worm wheel hole and a worm hole on the rotary speed reducer base; the first-order clamp comprises an angle iron base and a self-centering three-jaw chuck which is arranged on the angle iron base and used for clamping a worm wheel hole of a base of the rotary speed reducer; the second-order clamp comprises a numerical control indexing disc and a positioning plate which is fixed on the numerical control indexing disc and used for positioning and fixing bottom feet on the base of the rotary speed reducer; the first-order fixture is arranged on a milling machine workbench, and the second-order fixture is arranged on a workbench of a machining center. The utility model improves the processing precision and the processing efficiency of the base of the rotary speed reducer.
Description
Technical Field
The utility model relates to the technical field of machining process equipment, in particular to a fixture system for machining a rotary speed reducer base.
Background
The rotary speed reducer is widely applied in the field of modern industry. The rotary speed reducer mainly comprises a rotary speed reducer base and a worm gear transmission mechanism arranged on the rotary speed reducer base.
As shown in fig. 5, a typical structure of a slewing gear base 1 is provided, and main processing surfaces of the slewing gear base 1 are a plane surface of a foot 2, a worm wheel hole 4 and a worm hole 5. In the prior art, as for the processing of the base 1 of the rotary speed reducer, the conventional processing technology is to process the plane of the bottom leg 2 first, and then process the worm wheel hole 4 and the worm hole 5 in sequence by taking the plane of the bottom leg 2 as a reference.
In the prior art, the machining of a worm wheel hole and a worm hole is usually completed in two working procedures on a T68 boring machine, and the specific machining method is as follows: clamping a rotary speed reducer base on a T68 boring machine workbench, and then boring and milling one end of a worm gear hole; and after one end of the worm wheel hole is processed. The boring machine workbench rotates by 180 degrees to bore and mill the other end of the worm wheel hole; and then, rotating the boring machine workbench by 90 degrees to bore and mill a worm hole, and then rotating the boring machine workbench by 180 degrees to bore and mill the other end of the worm hole.
The traditional processing method has the following defects:
firstly, the alignment workload is large, so that the processing efficiency is low; secondly because boring machine workstation transposition precision is poor, need use the direct correction precision, lead to the further reduction of machining efficiency on the one hand, on the other hand leads to the machining precision to be difficult to guarantee: and thirdly, the outside micrometer needs to be frequently used for measuring the size in the processing process, and the processing efficiency is also reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a clamp system for machining a base of a rotary speed reducer, and aims to improve the machining precision and the machining efficiency of the base of the rotary speed reducer. The specific technical scheme is as follows:
a fixture system for processing a rotary speed reducer base comprises a first-order fixture for milling a bottom foot plane on the rotary speed reducer base and a second-order fixture for processing a worm wheel hole and a worm hole on the rotary speed reducer base; the first-order clamp comprises an angle iron seat and a self-centering three-jaw chuck which is arranged on the angle iron seat and used for clamping a worm wheel hole of a base of the rotary speed reducer; the second-order clamp comprises a numerical control indexing disc and a positioning plate which is fixed on the numerical control indexing disc and used for positioning and fixing bottom feet on the base of the rotary speed reducer; the first-order fixture is arranged on a milling machine workbench, and the second-order fixture is arranged on a workbench of a machining center.
According to the utility model, four studs are arranged on the positioning plate of the second-order clamp, and footing bolt holes on the rotary speed reducer base are correspondingly positioned on the four studs and are compressed and fixed through compression nuts.
In the utility model, the machining center is a vertical machining center, the numerical control dividing disc of the two-sequence clamp is a horizontal numerical control dividing disc, and the rotary axis of the dividing disc of the horizontal numerical control dividing disc is parallel to a workbench of the machining center.
As a further improvement of the utility model, the second-order fixture further comprises an auxiliary reinforcing vibration damper, the auxiliary reinforcing vibration damper comprises a base and a telescopic cylinder arranged on the base, the base is fixedly connected with a workbench of the machining center, the telescopic cylinder is horizontally arranged, and a vibration damping rubber block for assisting in jacking the top of the base of the telescopic rotary speed reducer is arranged at the front end of a telescopic rod of the telescopic cylinder.
Preferably, a rotating block is rotatably arranged at the front end of a telescopic rod of the telescopic cylinder, and the vibration reduction rubber block is fixed on the rotating block through a screw; the telescopic rod of the telescopic cylinder is coaxial with the rotary axis of the dividing plate of the horizontal numerical control dividing plate.
Preferably, one end of the rotating block, which is connected with the front end of the telescopic rod of the telescopic cylinder, is provided with a positioning shaft, and the positioning shaft is rotatably arranged on an inner hole at the front end of the telescopic rod through a conical rolling bearing.
In the utility model, the first-order clamp further comprises lateral jacking devices which are respectively arranged on the angle iron seat and are positioned on two sides of the self-centering three-jaw chuck and used for laterally fixing the rotary speed reducer base.
In the utility model, the lateral jacking device comprises side plates and a plurality of jacking cylinders, wherein the side plates are respectively connected to the angle iron base and positioned at two sides of the self-centering three-jaw chuck; the number of the jacking cylinders arranged on each side plate is three; two of the three jacking cylinders are jacked on the side face of the bottom foot of the base of the rotary speed reducer, and the other jacking cylinder is jacked on the end face of the worm hole of the base of the rotary speed reducer.
In the utility model, the angle iron base comprises a horizontal bottom plate, a vertical plate vertically arranged on the horizontal bottom plate and a reinforcing rib connected between the horizontal bottom plate and the vertical plate; the self-centering three-jaw chuck is arranged on a vertical plate of the angle iron seat; the back of the self-centering three-jaw chuck is connected with a transition plate, and the self-centering three-jaw chuck is fixed on a vertical plate of the angle iron seat through the transition plate.
In the utility model, the first-order clamp further comprises a pressing device, the pressing device comprises a tensioning screw rod arranged on a vertical plate of the angle iron base, and the tensioning screw rod penetrates through an inner hole of the self-centering three-jaw chuck and a worm wheel hole of the rotary speed reducer base and then presses the rotary speed reducer base through a pressing plate and a fastening nut.
The using method of the utility model is as follows: the method comprises the steps of firstly machining a bottom foot plane of a rotary speed reducer base by using a first-order clamp, then clamping the rotary speed reducer base on a numerical control dividing plate by using a second-order clamp, supporting a reinforcing vibration damping device to abut against the top position of the rotary speed reducer base, and sequentially machining one end of a worm wheel hole, the other end of the worm wheel hole, one end of a worm hole and the other end of the worm hole in the rotary speed reducer base by matching with the angle division of the numerical control dividing plate.
The utility model has the beneficial effects that:
firstly, the clamp system for processing the base of the rotary speed reducer adopts a mode of combining a three-jaw chuck and a jacking cylinder to clamp a workpiece, and is reliable in clamping and high in efficiency; the second-order clamp clamps the workpiece by adopting the numerical control indexing disc, and can realize precise machining of a worm wheel hole and a worm hole under the condition of one-time clamping machining by utilizing the high-precision rotation function of the numerical control indexing disc and the high-precision feed function of a machining center, so that the machining quality of the base of the rotary speed reducer is improved, and the machining efficiency is high.
Secondly, according to the fixture system for machining the rotary speed reducer base, the auxiliary reinforcing and damping device is arranged on the second-order fixture, the damping rubber block on the auxiliary reinforcing and damping device can synchronously rotate along with the numerical control index plate, and the auxiliary reinforcing and damping device does not need to be unloaded when a workpiece is rotated, so that machining vibration is reduced, the surface quality of inner hole machining is improved, and machining efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a fixture system for machining a base of a rotary speed reducer according to the present invention;
FIG. 2 is a schematic view of the structure of the jig of FIG. 1 (without the platen installed);
FIG. 3 is a schematic view of the structure of the jig of FIG. 1 (with the platen installed);
FIG. 4 is a schematic structural view of a second-order jig;
fig. 5 is a schematic structural view of a slewing reducer base.
In the figure: 1. a rotary speed reducer base, 2, a footing, 3, a first-order clamp, 4, a worm gear hole, 5, a worm hole, 6, a second-order clamp, 7, an angle iron seat, 8, a self-centering three-jaw chuck, 9, a numerical control dividing disc, 10, a positioning plate, 11, a clamping jaw on the self-centering three-jaw chuck, 12, a workbench of a machining center, 13, a stud, 14, a footing bolt hole, 15, a compression nut, 16, an auxiliary reinforcing and vibration damping device, 17, a base, 18, a telescopic cylinder, 19, a telescopic rod, 20, the top position of the rotary speed reducer base, 21, a vibration damping rubber block, 22, a rotating block, 23, a screw, 24, a positioning shaft, 25, a conical rolling bearing, 26, a lateral jacking device, 27, a side plate, 28, a jacking cylinder, 29, a horizontal bottom plate, 30, a vertical plate, 31, a reinforcing rib, 32, a transition plate, 33, a compression device, 34, a tensioning screw, 35 and a pressure plate, 36. and (5) tightening the nut.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 5 show an embodiment of a clamping system for machining a base of a rotary speed reducer according to the present invention, which includes a first-order clamping device 3 for plane milling of a bottom leg 2 of the base 1 of the rotary speed reducer, and a second-order clamping device 6 for machining a worm wheel hole 4 and a worm hole 5 of the base 1 of the rotary speed reducer; the first-order clamp 3 comprises an angle iron seat 7 and a self-centering three-jaw chuck 8 which is arranged on the angle iron seat 7 and used for clamping the worm wheel hole 5 of the rotary speed reducer base 1; the second-order clamp 6 comprises a numerical control indexing disc 9 and a positioning plate 10 which is fixed on the numerical control indexing disc 9 and used for positioning and fixing the bottom feet 2 on the rotary speed reducer base 1; the first-order fixture 3 is arranged on a milling machine workbench, and the second-order fixture 3 is arranged on a workbench 12 of a machining center.
In this embodiment, four studs 13 are disposed on the positioning plate 10 of the second-order clamp 2, and the footing bolt holes 14 on the slewing reducer base 1 are correspondingly positioned on the four studs 13 and are compressed and fixed by compression nuts 15.
In this embodiment, the machining center is a vertical machining center, the numerical control indexing disc 9 of the second-order fixture 6 is a horizontal numerical control indexing disc, and a rotation axis of the indexing disc of the horizontal numerical control indexing disc 9 is parallel to a workbench 12 of the machining center.
As a further improvement of this embodiment, the second-order fixture 6 further includes an auxiliary reinforcing and vibration damping device 16, where the auxiliary reinforcing and vibration damping device 16 includes a base 17 and a telescopic cylinder 18 disposed on the base 17, the base 17 is fixedly connected to the working table 12 of the machining center, the telescopic cylinder 18 is horizontally disposed, and a vibration damping rubber block 21 for assisting in pressing the top position 20 of the base of the telescopic slewing reducer is disposed at the front end of a telescopic rod 19 of the telescopic cylinder 18.
Preferably, a rotating block 22 is rotatably arranged at the front end of the telescopic rod 19 of the telescopic cylinder 18, and the vibration damping rubber block 21 is fixed on the rotating block 22 through a screw 23; the telescopic rod 19 of the telescopic cylinder 18 is coaxial with the rotary axis of the dividing plate of the horizontal numerical control dividing plate 9.
Preferably, a positioning shaft 24 is arranged at one end of the rotating block 22 connected with the front end of the telescopic rod 19 of the telescopic cylinder 18, and the positioning shaft 24 is rotatably arranged on an inner hole at the front end of the telescopic rod 19 through a conical rolling bearing 25.
In this embodiment, the first-order fixture 3 further includes lateral pressing devices 26 respectively disposed on the angle iron base 7 and located on two sides of the self-centering three-jaw chuck 8 for laterally fixing the base 1 of the rotary speed reducer.
In this embodiment, the lateral pressing device 26 includes side plates 27 respectively connected to the angle iron base 7 and located at two sides of the self-centering three-jaw chuck 8, and a plurality of pressing cylinders 28 disposed on the side plates 27; the number of the jacking cylinders 28 arranged on each side plate 27 is three; two jacking cylinders 28 of the three jacking cylinders 28 are jacked on the side surface of the bottom leg 2 of the base 1 of the rotary speed reducer, and the other jacking cylinder 28 of the three jacking cylinders 28 is jacked on the end surface of the worm hole 5 of the base 1 of the rotary speed reducer.
In this embodiment, the angle iron seat 7 includes a horizontal bottom plate 29, a vertical plate 30 vertically disposed on the horizontal bottom plate 29, and a reinforcing rib 31 connected between the horizontal bottom plate 29 and the vertical plate 30; the self-centering three-jaw chuck 8 is arranged on a vertical plate 30 of the angle iron seat 7; the back of the self-centering three-jaw chuck 8 is connected with a transition plate 32, and the self-centering three-jaw chuck 8 is fixed on a vertical plate 30 of the angle iron seat 7 through the transition plate 32.
In this embodiment, the first-order clamp 3 further includes a pressing device 33, the pressing device 33 includes a tightening screw 34 disposed on the vertical plate 30 of the angle iron seat 7, and the tightening screw 34 passes through the inner hole of the self-centering three-jaw chuck 8 and the worm wheel hole 5 of the slewing reducer base 1, and then presses the slewing reducer base 1 through a pressing plate 35 and a fastening nut 36.
The method of use of this example is as follows: firstly, a first-order clamp 3 is used for processing a plane of a bottom foot 2 of a rotary speed reducer base 1, then a second-order clamp 5 is used for clamping the rotary speed reducer base 1 on a numerical control indexing disc 9, an auxiliary reinforcing vibration damping device 16 is used for supporting the top position 20 of the rotary speed reducer base, and the other end of a worm wheel hole 4, the other end of the worm wheel hole 4, one end of a worm hole 5 and the other end of the worm hole 5 in the rotary speed reducer base 1 are sequentially processed by matching with the angle indexing of the numerical control indexing disc 9.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A clamp system for machining a rotary speed reducer base is characterized by comprising a first-order clamp for milling a bottom foot plane on the rotary speed reducer base and a second-order clamp for machining a worm wheel hole and a worm hole on the rotary speed reducer base; the first-order clamp comprises an angle iron seat and a self-centering three-jaw chuck which is arranged on the angle iron seat and used for clamping a worm wheel hole of a base of the rotary speed reducer; the second-order clamp comprises a numerical control indexing disc and a positioning plate which is fixed on the numerical control indexing disc and used for positioning and fixing bottom feet on the base of the rotary speed reducer; the first-order fixture is arranged on a milling machine workbench, and the second-order fixture is arranged on a workbench of a machining center.
2. The fixture system for processing the base of the slewing reducer as claimed in claim 1, wherein four studs are arranged on the positioning plate of the second-order fixture, and footing bolt holes on the base of the slewing reducer are correspondingly positioned on the four studs and are tightly pressed and fixed through compression nuts.
3. The clamp system for machining the base of the rotary speed reducer according to claim 1, wherein the machining center is a vertical machining center, the numerical control indexing disc of the two-stage clamp is a horizontal numerical control indexing disc, and a rotary axis of the indexing disc of the horizontal numerical control indexing disc is parallel to a workbench of the machining center.
4. The clamping system for machining the base of the slewing reducer as claimed in claim 3, wherein the second-order clamp further comprises an auxiliary reinforcing and damping device, the auxiliary reinforcing and damping device comprises a base and a telescopic cylinder arranged on the base, the base is fixedly connected with the workbench of the machining center, the telescopic cylinder is horizontally arranged, and a damping rubber block for assisting in jacking the top of the base of the slewing reducer is arranged at the front end of a telescopic rod of the telescopic cylinder.
5. The fixture system for machining the base of the slewing reducer as claimed in claim 4, wherein a rotating block is rotatably arranged at the front end of a telescopic rod of the telescopic cylinder, and the vibration damping rubber block is fixed on the rotating block through a screw; the telescopic rod of the telescopic cylinder is coaxial with the rotary axis of the dividing plate of the horizontal numerical control dividing plate.
6. The fixture system for machining the base of the slewing reducer as claimed in claim 5, wherein a positioning shaft is arranged at one end of the rotating block, which is connected with the front end of the telescopic rod of the telescopic cylinder, and the positioning shaft is rotatably arranged on an inner hole at the front end of the telescopic rod through a conical rolling bearing.
7. The system of claim 1, wherein the first-order fixture further comprises lateral pressing devices respectively disposed on the angle iron base and located at two sides of the self-centering three-jaw chuck for laterally fixing the base of the rotary speed reducer.
8. The fixture system for machining a base of a rotary speed reducer according to claim 7, wherein the lateral jacking device comprises side plates respectively connected to the angle iron base and located on two sides of the self-centering three-jaw chuck, and a plurality of jacking cylinders arranged on the side plates; the number of the jacking cylinders arranged on each side plate is three; two of the three jacking cylinders are jacked on the side face of the bottom foot of the base of the rotary speed reducer, and the other jacking cylinder is jacked on the end face of the worm hole of the base of the rotary speed reducer.
9. The clamp system for machining a slew reducer base of claim 8 where the angle iron base comprises a horizontal base plate, a riser vertically disposed on the horizontal base plate, and a stiffener connected between the horizontal base plate and the riser; the self-centering three-jaw chuck is arranged on a vertical plate of the angle iron seat; the back of the self-centering three-jaw chuck is connected with a transition plate, and the self-centering three-jaw chuck is fixed on a vertical plate of the angle iron seat through the transition plate.
10. The system of claim 9, wherein the first-order clamp further comprises a pressing device, the pressing device comprises a tightening screw rod arranged on a vertical plate of the angle iron seat, and the tightening screw rod penetrates through an inner hole of the self-centering three-jaw chuck and a worm wheel hole of the base of the rotary speed reducer and then presses the base of the rotary speed reducer through a pressing plate and a fastening nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122655982.6U CN216966306U (en) | 2021-11-02 | 2021-11-02 | Clamp system for machining base of rotary speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122655982.6U CN216966306U (en) | 2021-11-02 | 2021-11-02 | Clamp system for machining base of rotary speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216966306U true CN216966306U (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122655982.6U Active CN216966306U (en) | 2021-11-02 | 2021-11-02 | Clamp system for machining base of rotary speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216966306U (en) |
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2021
- 2021-11-02 CN CN202122655982.6U patent/CN216966306U/en active Active
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