CN216179594U - Rapid centering clamp for grinding of pin gear shell - Google Patents
Rapid centering clamp for grinding of pin gear shell Download PDFInfo
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- CN216179594U CN216179594U CN202122136544.9U CN202122136544U CN216179594U CN 216179594 U CN216179594 U CN 216179594U CN 202122136544 U CN202122136544 U CN 202122136544U CN 216179594 U CN216179594 U CN 216179594U
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Abstract
The utility model relates to a rapid centering fixture for grinding a pin gear shell, which comprises a chuck chassis, a wire coil, a bevel gear, a chuck shell, a plurality of jaw bases, jaws and a permanent magnet suction table, wherein the wire coil is arranged on the chuck chassis; the bevel gear is arranged on the chuck chassis and is meshed with the lower surface of the disc wire, so that the disc wire can be driven to rotate in a circle-centering manner when the bevel gear is twisted; the plurality of claw bases are arranged in the first radial groove, the lower surface of each claw base is meshed with the upper surface of the wire coil, and the wire coil can drive the claw bases to linearly displace along the first radial groove when rotating; the clamping jaw is fixed on the clamping jaw base through a clamping jaw locking bolt; the permanent magnetic suction table is arranged in the second radial groove and can linearly displace along the second radial groove. Compared with the prior art, the universal fixture for grinding the inner circle, the outer circle, the end face and the inner tooth of the pin gear shell can be applied to the universal fixture for grinding the inner circle, the outer circle, the end face and the inner tooth of the pin gear shell, and simultaneously has the functions of large clamping range and quick centering.
Description
Technical Field
The utility model relates to the technical field of accessories of grinding machines, in particular to a rapid centering clamp for grinding a pin gear shell.
Background
The pin gear shell is a speed reducer shell, and for its internal and external circles, terminal surface and internal tooth all need abrasive machining, and the machined surface is many, and the face that can supply location and clamping is few, at first need the center of looking for the pin gear shell during processing, then presss from both sides tightly, and it is high to look for the precision requirement, and ordinary anchor clamps are difficult to satisfy the requirement. The traditional clamping mode has two kinds:
1) during manual alignment, the cover plate is pressed tightly, the dial indicator is required to measure the inner circle of the cover plate, the spindle is rotated, the reading of the dial indicator is observed, the position of the pin gear shell is adjusted by manually knocking a part, and when the inner circle runout measured by the dial indicator is smaller than a required value, the cover plate is screwed tightly and screws are clamped tightly. The centering time is long, and the center of the gear shell is easy to change when the cover plate is pressed tightly, so that repeated adjustment is needed.
2) The automatic clamp with high precision and repeated clamping precision is used, the power of the clamp comes from a hydraulic pump of a machine tool, and oil pressure is provided for the clamp through a rotary joint below a main shaft. The center of the clamp needs to be adjusted in advance, and after the measured radial runout of the standard block after each clamping meets the requirement, the center of all the pin gear cases after the clamping meets the requirement by default. The clamping device has the defects that the clamping force is too large, thin-wall parts are easy to deform, a machine tool is required to be provided with a hydraulic or pneumatic clamping device, and the clamping range is narrow.
And the two clamps can not be used universally on different machine tools when processing the inner and outer circular end surfaces and the inner teeth, so that the clamp cost is greatly increased, and the technical problems need to be solved through innovative research and development.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a rapid centering clamp for grinding a pin gear shell, namely a universal clamp for grinding the inner circle, the outer circle, the end face and the inner tooth of the pin gear shell, and has the functions of large clamping range and rapid centering.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides an aim at protection a fast centering anchor clamps of pin gear shell grinding, inhale the platform including chuck chassis, dish silk, bevel gear, chuck casing, a plurality of jack catch bases, jack catch, permanent magnetism, wherein specifically:
the wire coiling is arranged on the chuck base plate;
the bevel gear is arranged on the chuck chassis and is meshed with the lower surface of the disc wire, so that the disc wire can be driven to rotate in a circle-centering manner when the bevel gear is twisted;
the chuck shell is provided with a first radial groove and a second radial groove along the radial direction;
the plurality of jaw bases are arranged in the first radial grooves, the lower surfaces of the jaw bases are meshed with the upper surfaces of the wire coils, and the wire coils can drive the jaw bases to linearly displace along the first radial grooves when rotating;
the clamping jaw is fixed on the clamping jaw base through a clamping jaw locking bolt;
and the permanent magnetic suction table is arranged in the second radial groove and can linearly displace along the second radial groove.
Furthermore, the chuck base plate is provided with a base plate circular groove, a bevel gear groove is formed in the edge of the base plate circular groove, and the shaft rod part of the bevel gear is arranged on the bevel gear groove.
Furthermore, the outer edge of the lower surface of the wire coil is provided with a circle of radial insections, a fixed disc is arranged in the middle of the insections, and the fixed disc is arranged in the circular groove of the chassis and enables the bevel gear groove to be meshed with the insections.
Further, the upper surface of the wire coiling is provided with spiral insections, the lower surfaces of the plurality of claw bases are provided with claw insections, and the claw insections are meshed with the spiral insections, so that the claw bases can be driven to perform radial displacement when the wire coiling rotates.
Furthermore, first radial groove and second radial groove are T type groove, the guide way has been seted up on the lateral wall of jack catch base for the jack catch base alternate spacing in with in the first radial groove.
Furthermore, a T-shaped block is arranged below the permanent magnet suction table, and the T-shaped block is inserted and limited in the second radial groove.
Further, first radial groove and second radial groove all are equipped with 3, and first radial groove and second radial groove are the equidistance interval and set up.
Furthermore, one side of the jaw base close to the edge of the chuck shell is provided with a jaw base protruding block, a screw hole is formed in the jaw base protruding block, an adjusting bolt penetrates through the screw hole, and one end of the adjusting bolt can abut against the jaw.
Furthermore, the clamping jaw is provided with a strip-shaped clamping jaw limiting hole, and the clamping jaw locking bolt penetrates through the clamping jaw limiting hole and is fastened on the clamping jaw base, so that the clamping jaw can be subjected to displacement adjustment relative to the clamping jaw base when the clamping jaw locking bolt is in a loose state.
Furthermore, the clamping surfaces of the clamping jaw and the permanent magnetic suction table are concave cambered surfaces.
Compared with the prior art, the utility model has the following technical advantages:
1) the technical scheme provides a universal fixture which can process a plurality of surfaces, can be applied to grinding inner and outer circles, end faces and inner teeth of a pin gear shell, and has the functions of large clamping range and quick centering.
2) The stepless adjustment chuck in the technical scheme can ensure high-precision centering, and the magnetic table can prevent the workpiece from deforming and shifting in the clamping process.
Drawings
Fig. 1 is an exploded structural schematic view of a rapid centering fixture for grinding a needle gear housing in the technical scheme;
fig. 2 is a schematic cross-sectional structure view of a rapid centering fixture for grinding a needle gear housing in the technical scheme;
fig. 3 is a schematic top view structural diagram of the rapid centering fixture for grinding a needle housing in the technical scheme.
In the figure:
1. pin gear shell
2. Permanent magnetic suction table
3. Jack catch
4. Locking bolt
5. Adjusting bolt
6. Jack catch base
7. Chuck shell
8. Wire coil
9. Bevel gear
10. Chuck base plate
11. Chassis fixing screw
12. And a T-shaped block.
Detailed Description
The utility model is described in detail below with reference to the figures and specific embodiments.
Example 1
The wire coiling 8 in the technical scheme is arranged on the chuck chassis 10; the bevel gear 9 is arranged on the chuck chassis 10 and is meshed with the lower surface of the disc wire 8, so that the disc wire 8 can be driven to rotate in a centering way when the bevel gear 9 is twisted. The chuck chassis 10 is provided with a chassis circular groove, a bevel gear groove is formed in the edge of the chassis circular groove, and the shaft part of the bevel gear 9 is arranged on the bevel gear groove. The outer edge of the lower surface of the wire coil 8 is provided with a circle of radial insections, and a fixed disc is arranged in the middle of the insections and is arranged in the circular groove of the chassis, so that the bevel gear groove is meshed with the insections. The upper surface of the wire coiling 8 is provided with spiral insections, the lower surfaces of the jaw bases 6 are provided with the insections of the jaws, and the insections of the jaws are meshed with the spiral insections so that the jaw bases 6 can be driven to perform radial displacement when the wire coiling 8 rotates.
A first radial groove and a second radial groove are arranged on the chuck shell 7 along the radial direction; the plurality of jaw bases 6 are arranged in the first radial groove, the lower surface of each jaw base 6 is meshed with the upper surface of the wire coil 8, and the wire coil 8 can drive the jaw bases 6 to linearly displace along the first radial groove when rotating; the clamping jaw 3 is fixed on the clamping jaw base 6 through a clamping jaw locking bolt 4; the permanent magnetic suction table 2 is arranged in the second radial groove and can linearly displace along the second radial groove.
First radial groove and second radial groove are T type groove, the guide way has been seted up on the lateral wall of jack catch base 6 for jack catch base 6 alternate spacing in with in the first radial groove. And a T-shaped block 12 is arranged below the permanent magnetic suction table 2, and the T-shaped block 12 is inserted and limited in the second radial groove. First radial groove and second radial groove all are equipped with 3, and first radial groove and second radial groove are the equidistance interval and set up. One side that jack catch base 6 is close to chuck housing 7 border is equipped with jack catch base protruding piece, be equipped with the screw on the jack catch base protruding piece, wear to be equipped with adjusting bolt 5 on the screw, adjusting bolt 5's one end can support press in on the jack catch 3. The clamping jaw 3 is provided with a strip-shaped clamping jaw limiting hole, and the clamping jaw locking bolt 4 penetrates through the clamping jaw limiting hole and is fastened on the clamping jaw base 6, so that the clamping jaw 3 can be subjected to displacement adjustment relative to the clamping jaw base 6 under the condition that the clamping jaw locking bolt 4 is in a loose state.
In specific implementation, the rapid centering fixture for grinding the middle needle gear shell in the technical scheme critically comprises a three-jaw self-centering chuck with a stepless-adjustment jaw 3 and an auxiliary magnetic table. The structure of the chuck comprises a chuck shell 7, a chuck chassis 10, 3 bevel gears 9, 3 jaw bases 6, 3 jaws 3, corresponding adjusting bolts 5, chassis fixing screws 11 and 3 permanent magnetic suction tables 2, and the chuck is shown in figures 1 to 3. The three-jaw self-centering chuck provides a centering function, the clamping accuracy can be greatly improved by the clamping jaws 3 which are adjusted in a stepless mode, the magnetic table provides magnetic force to tightly suck a workpiece, deformation of the clamped workpiece is avoided, and workpiece movement caused by pressing is also avoided.
When the bevel gear 9 is pulled by a wrench, the disc wire 8 rotates, and the plane thread on the back surface of the disc wire 8 enables the jaw base 6 to move towards the center simultaneously, so that the automatic centering function is achieved. And the jack catch 3 and the jack catch base 6 are screwed up and fixed through a locking bolt, the relative position of the jack catch 3 and the jack catch base 6 can be slightly adjusted along the radial direction of the chuck through an adjusting bolt 5 on the outer side of the jack catch base 6, and the positions of the jack catch 3 and the jack catch base 6 can be fixed by screwing the adjusting bolt 5 after the adjustment is in place.
During the concrete implementation, the permanent magnetism suction table 2 is fixed on the chuck shell 7 through the T-shaped block, and the permanent magnetism suction table 2 can move on the chuck shell 7 along the T-shaped groove in the radial direction to adapt to the pin gear shells with different diameters. The inner side surface of the permanent magnetic suction table 2 is arc-shaped so as to increase the adsorption area.
In the using process, firstly, centering is carried out, firstly, a standard part is clamped, a chuck is manually adjusted to clamp, the jaw locking bolt 4 is loosened, the center of the standard part is adjusted through the adjusting bolt 5, and when the dial indicator detects that the circle jumps to the minimum, the jaw locking bolt 4 is locked. And then the position of the permanent magnet suction table 2 is adjusted to ensure that the permanent magnet suction table can just suck the needle gear shell flange. The clamp adjustment process is now complete.
When the clamping jaw 3 is loosened, the pin gear shell 1 is placed, manual clamping is carried out, force is not required to be large, the workpiece cannot be pressed and deformed while centering is guaranteed, then the permanent magnet suction table 2 is opened, the workpiece is sucked tightly, and the clamping jaw 3 is loosened.
In summary, the utility model has the advantages that the stepless adjusting chuck can ensure high-precision centering, the magnetic table can prevent the workpiece from deforming by adsorption, the workpiece is prevented from shifting in the clamping process, the number of the machinable surfaces is large, and the machine tool can be used for machining inner and outer circles, end surfaces, gear grinding and grinding the inner and outer circles at one time.
The embodiments described above are intended to facilitate the understanding and use of the utility model by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. The utility model provides a fast centering anchor clamps of pin gear shell grinding which characterized in that includes:
a chuck base (10);
the wire coiling (8) is arranged on the chuck base plate (10);
the bevel gear (9) is arranged on the chuck chassis (10) and is meshed with the lower surface of the disc wire (8), so that the disc wire (8) can be driven to rotate in a circle center manner by twisting the bevel gear (9);
the chuck shell (7) is provided with a first radial groove and a second radial groove along the radial direction;
the jack catch bases (6) are arranged in the first radial grooves, the lower surfaces of the jack catch bases (6) are meshed with the upper surfaces of the wire coils (8), and the wire coils (8) can drive the jack catch bases (6) to linearly displace along the first radial grooves when rotating;
the clamping jaw (3) is fixed on the clamping jaw base (6) through a clamping jaw locking bolt (4);
and the permanent magnetic suction table (2) is arranged in the second radial groove and can linearly displace along the second radial groove.
2. The rapid centering fixture for grinding of the pin gear shell according to claim 1, characterized in that the chuck base plate (10) is provided with a base plate circular groove, and a bevel gear groove is opened on the edge of the base plate circular groove, and the shaft portion of the bevel gear (9) is provided on the bevel gear groove.
3. The rapid centering fixture for grinding of a pinion housing as claimed in claim 2, wherein the outer edge of the lower surface of the wire coil (8) is provided with a circle of radial insections, and a fixed disk is arranged in the middle of the insections, the fixed disk is arranged in the circular groove of the chassis and enables the bevel gear groove to be meshed with the insections.
4. The rapid centering fixture for grinding the pin gear housing as claimed in claim 2, wherein the upper surface of the wire disc (8) is provided with a spiral type insection, the lower surfaces of the plurality of jaw bases (6) are provided with jaw insections, and the jaw insections are meshed with the spiral type insection, so that the jaw bases (6) can be driven to perform radial displacement when the wire disc (8) rotates.
5. The rapid centering fixture for grinding of the pin gear shell according to claim 1, wherein the first radial groove and the second radial groove are both T-shaped grooves, and a guide groove is formed in a side wall of the jaw base (6), so that the jaw base (6) is inserted and limited in the first radial groove.
6. The rapid centering fixture for grinding the pin gear shell according to claim 5, wherein a T-shaped block (12) is arranged below the permanent magnetic suction table (2), and the T-shaped block (12) is inserted and limited in the second radial groove.
7. The rapid centering fixture for grinding a pin gear shell according to claim 1, wherein 3 radial grooves are provided for each of the first radial groove and the second radial groove, and the first radial groove and the second radial groove are equidistantly spaced.
8. The rapid centering fixture for grinding the pin gear shell as claimed in claim 1, wherein a jaw base protruding block is arranged on one side of the jaw base (6) close to the edge of the chuck shell (7), a screw hole is arranged on the jaw base protruding block, an adjusting bolt (5) penetrates through the screw hole, and one end of the adjusting bolt (5) can abut against the jaw (3).
9. The rapid centering fixture for grinding the pin gear shell according to claim 8, characterized in that the jaw (3) is provided with a strip-shaped jaw limiting hole, and the jaw locking bolt (4) penetrates through the jaw limiting hole and is fastened on the jaw base (6) so that the jaw (3) can be adjusted in displacement relative to the jaw base (6) when the jaw locking bolt (4) is in a loose state.
10. The rapid centering fixture for grinding the pin gear shell according to claim 1, wherein the clamping faces of the clamping jaws (3) and the permanent magnetic suction table (2) are all concave arc faces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122136544.9U CN216179594U (en) | 2021-09-06 | 2021-09-06 | Rapid centering clamp for grinding of pin gear shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122136544.9U CN216179594U (en) | 2021-09-06 | 2021-09-06 | Rapid centering clamp for grinding of pin gear shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216179594U true CN216179594U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122136544.9U Active CN216179594U (en) | 2021-09-06 | 2021-09-06 | Rapid centering clamp for grinding of pin gear shell |
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| Country | Link |
|---|---|
| CN (1) | CN216179594U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116275305A (en) * | 2023-02-16 | 2023-06-23 | 上海羿弓精密科技有限公司 | Needle gear shell machining device, needle gear shell machining process and needle gear shell |
| CN117444851A (en) * | 2023-12-21 | 2024-01-26 | 宁波华众塑料制品有限公司 | Three-jaw clamping and sucking integrated clamp |
-
2021
- 2021-09-06 CN CN202122136544.9U patent/CN216179594U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116275305A (en) * | 2023-02-16 | 2023-06-23 | 上海羿弓精密科技有限公司 | Needle gear shell machining device, needle gear shell machining process and needle gear shell |
| CN116275305B (en) * | 2023-02-16 | 2024-04-16 | 上海羿弓精密科技有限公司 | Needle gear shell machining device, needle gear shell machining process and needle gear shell |
| CN117444851A (en) * | 2023-12-21 | 2024-01-26 | 宁波华众塑料制品有限公司 | Three-jaw clamping and sucking integrated clamp |
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