CN221773958U - A split type eccentric workpiece processing fixture - Google Patents
A split type eccentric workpiece processing fixture Download PDFInfo
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- CN221773958U CN221773958U CN202323426893.XU CN202323426893U CN221773958U CN 221773958 U CN221773958 U CN 221773958U CN 202323426893 U CN202323426893 U CN 202323426893U CN 221773958 U CN221773958 U CN 221773958U
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Abstract
The utility model discloses a split type eccentric workpiece machining clamp which comprises a base, a positioning seat and a plurality of clamping jaws, wherein the base is used for being connected with a lathe, a first inserting hole and a second inserting hole are formed in the end face of the base, the first inserting hole deviates from the axis of the base, and the second inserting hole deviates from the axis of the first inserting hole; the positioning seat is connected to the base, one end of the positioning seat is provided with a first bolt and a second bolt, the other end of the positioning seat is provided with a first positioning pin and a second positioning pin, the first bolt is inserted into the first insertion hole, the second bolt is inserted into the second insertion hole, and the first positioning pin and the second positioning pin are used for positioning a workpiece; the clamping jaw is connected to the base in a sliding mode, the clamping jaw can move along the radial direction of the first bolt, and the clamping jaws are distributed at intervals around the circumference of the first bolt. And the workpiece is positioned by utilizing the first positioning pin and the second positioning pin on the positioning seat, then the workpiece is clamped by the clamping jaws, and the workpiece is accurately positioned, so that the processing reference is determined, the clamping speed and accuracy are improved, and the production efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of processing equipment, in particular to a split type eccentric workpiece processing clamp.
Background
Referring to fig. 6, in the related art, there is a kind of gear workpiece made of powder metallurgy, and when performing machining operations such as a lathe, eccentric clamping is required, and it is difficult to accurately position and clamp by using a common clamp, which is not beneficial to determining a machining reference, and even causes errors in machining size, and affects production efficiency.
Disclosure of utility model
The utility model aims to solve the technical problems existing in the prior art. Therefore, the split type eccentric workpiece machining clamp provided by the utility model can be used for rapidly and accurately positioning workpieces, and the production efficiency is improved.
The split type eccentric workpiece machining clamp comprises a base, a positioning seat and a plurality of clamping jaws, wherein the base is used for being connected with a lathe, a first inserting hole and a second inserting hole are formed in the end face of the base, the first inserting hole is deviated from the axis of the base, and the second inserting hole is deviated from the axis of the first inserting hole; the positioning seat is connected to the base, a first bolt and a second bolt are arranged at one end of the positioning seat, a first positioning pin and a second positioning pin are arranged at the other end of the positioning seat, the first bolt is inserted into the first insertion hole, the second bolt is inserted into the second insertion hole, and the first positioning pin and the second positioning pin are used for positioning a workpiece; the clamping jaw is connected to the base in a sliding mode, the clamping jaw can move along the radial direction of the first bolt, and a plurality of clamping jaws are distributed at intervals around the circumference of the first bolt.
The split type eccentric workpiece machining clamp provided by the embodiment of the utility model has at least the following beneficial effects:
When the processing clamp is used, the first locating pin and the second locating pin on the locating seat are utilized to locate the workpiece, then the clamping jaws retract inwards to clamp the workpiece so as to process the workpiece in the next step, the locating seat is fixed, the workpiece is accurately located, the processing reference is determined, the moving centers of the clamping jaws deviate from the axis of the base, the workpiece is accurately clamped, the eccentric locating clamping speed and accuracy of the workpiece are greatly improved, and the production efficiency is improved.
According to some embodiments of the utility model, the second pin has a diameter smaller than a diameter of the second locating pin.
According to some embodiments of the utility model, the first pin is arranged coaxially with the first locating pin, and the second pin is spaced from the first pin by a distance greater than the distance between the second locating pin and the first locating pin.
According to some embodiments of the utility model, the base is provided with a plurality of sliding grooves, the sliding grooves are arranged along the radial direction of the first bolt, and the clamping jaw is provided with a sliding block arranged on the sliding grooves.
According to some embodiments of the utility model, a detachable clamping mechanism is connected to an end surface of the clamping jaw facing away from the base, and the clamping mechanism cooperates with the positioning seat to clamp the workpiece.
According to some embodiments of the utility model, the clamping mechanism comprises a cylinder, a piston rod of the cylinder is connected with a support arm, and a compression rod is arranged at the end part of the support arm and faces the positioning seat.
According to some embodiments of the utility model, the clamping mechanism comprises a magnetic gauge stand, the magnetic gauge stand is provided with a rotating shaft, the end part of the rotating shaft is connected with a support arm, the end part of the support arm is connected with a compression bar, the compression bar is in threaded connection with the support arm, one end of the compression bar faces the positioning seat, and the other end of the compression bar is provided with a torsion part.
According to some embodiments of the utility model, the clamping mechanism comprises a corner cylinder having a support arm with an end provided with a compression bar, the end of the compression bar being directed towards the positioning seat.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
Additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a cross-sectional view of a tooling assembly according to an embodiment of the present utility model;
FIG. 2 is a right side view of a tooling assembly according to an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a positioning seat according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a connection structure of a clamping jaw and a clamping mechanism according to some embodiments of the present utility model;
FIG. 5 is a schematic view of a connection structure between a clamping jaw and a clamping mechanism according to other embodiments of the present utility model;
fig. 6 is a front view of a workpiece to be machined.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
To this end, an embodiment of the present utility model proposes a split type eccentric workpiece processing jig, referring to fig. 1, the processing jig including a base 100, a positioning seat 200, and a plurality of jaws 300, the base 100 being a mounting base, the base 100 being generally mounted on a spindle of a lathe, the base 100 being rotatable along with the spindle, a first insertion hole 101 and a second insertion hole 102 being provided at an end surface of the base 100, wherein the first insertion hole 101 is offset from an axis of the base 100, and the second insertion hole 102 is offset from an axis of the first insertion hole 101. The positioning seat 200 is mounted on the base 100, a first pin 210 and a second pin 220 are disposed at one end of the positioning seat 200, a first positioning pin 230 and a second positioning pin 240 are disposed at the other end of the positioning seat 200, the first pin 210 is inserted into the first insertion hole 101, and the second pin 220 is inserted into the second insertion hole 102, so as to realize the relative positioning and fixing of the positioning seat 200 and the base 100, and two pins are adopted for accurate positioning; the first positioning pin 230 and the second positioning pin 240 are used for positioning the workpiece 500, as shown in fig. 6, the workpiece 500 has two holes, and the workpiece 500 can be accurately positioned by correspondingly installing the first positioning pin 230 and the second positioning pin 240, and in the processing process, the two positioning pins can prevent the workpiece 500 from shifting, so that the processing accuracy is improved. As shown in fig. 2, the machining fixture generally employs four clamping jaws 300, and the clamping jaws 300 are slidably connected to the base 100 for matching the eccentric clamping of the workpiece 500, and the collection center of the four clamping jaws 300 is the center of the first pin 210, so that each clamping jaw 300 moves along the radial direction of the first pin 210, and the clamping jaws 300 are circumferentially spaced around the first pin 210, typically uniformly spaced, or non-uniformly spaced for a workpiece of a specific structure.
When the processing clamp is used, the workpiece 500 is positioned by utilizing the first positioning pin 230 and the second positioning pin 240 on the positioning seat 200, then the clamping jaws 300 shrink inwards to clamp the workpiece 500 so as to process the workpiece 500 in the next step, the position of the positioning seat 200 is fixed, the workpiece 500 is accurately positioned, the processing reference is determined, the processing precision is improved, the moving centers of the clamping jaws 300 deviate from the axis of the base 100, the first bolt 210 is used as the center, the center of the workpiece 500 is matched, the workpiece 500 can be accurately clamped, the eccentric positioning clamping speed and accuracy of the workpiece 500 are greatly improved, and the production efficiency is improved.
Referring to fig. 3, the diameter of the second pin 220 is set smaller than that of the second positioning pin 240, and since two pins are provided at both ends of the positioning seat 200, in order to prevent misloading, different diameters are used, and a foolproof function is provided. Further, the first pin 210 and the first positioning pin 230 are coaxially arranged, the distance between the second pin 220 and the first pin 210 is greater than the distance between the second positioning pin 240 and the first positioning pin 230, and the positions of the second pin 220 and the second positioning pin 240 are different, so that the possibility of incorrect assembly is further avoided, and the fool-proof function is improved.
It can be appreciated that, in order to realize sliding of the clamping jaw 300, a plurality of sliding grooves are generally disposed on the base 100, the sliding grooves are arranged along the radial direction of the first plug 210, the clamping jaw 300 is provided with a sliding block mounted on the sliding grooves, and in order to prevent the sliding block from disengaging, the sliding block can have a T-shaped or trapezoid structure, so that the sliding block can meet the moving requirement, prevent the sliding block from disengaging, and bear larger pressure.
It will be appreciated that, considering that the plurality of clamping jaws 300 only clamp the outer periphery of the workpiece 500, the front surface of the workpiece 500 is not clamped, and the stability in processing is not optimal, so that the end surface of the clamping jaw 300 facing away from the base 100 can be connected with the detachable clamping mechanism 400, the workpiece 500 is clamped in the axial direction of the workpiece 500 by using the cooperation of the clamping mechanism 400 and the positioning seat 200, and meanwhile, the plurality of clamping jaws 300 clamp the workpiece 500 in the radial direction of the workpiece 500, so that the clamping of the workpiece 500 is more stable and the processing precision is higher. The clamping mechanism 400 may be selected according to practical requirements and is not necessarily used.
Referring to fig. 4, in some embodiments of the present utility model, the clamping mechanism 400 includes a cylinder 410, a support arm 420 is connected to a piston rod of the cylinder 410, a compression bar 430 is provided at an end of the support arm 420, an end of the compression bar 430 faces the positioning seat 200, and a pressing block 431 is provided, and the pressing block 431 has a rubber pad. When the clamping device is used, the workpiece 500 is firstly arranged on the positioning seat 200, then the four clamping jaws 300 clamp the workpiece 500 from the periphery, then the cylinder 410 acts to push the pressing block 431 of the pressing rod 430 to be pressed on the end face of the workpiece 500, the workpiece 500 is fixed in the axial direction and the radial direction at the same time, and the processing stability and the processing precision are better. It should be appreciated that the clamping mechanism 400 and the clamping jaw 300 are detachably connected, and the workpiece may be clamped by the four clamping jaws 300, and then the clamping mechanism 400 may be installed to fix the workpiece in the axial direction. Or the support arm 420 and the piston rod of the cylinder 410 can relatively rotate, and when the workpiece 500 is disassembled, the support arm 420 rotates to press the rod 430 to the outer side of the clamping jaw 300, so that blocking is avoided.
Referring to fig. 5, in other embodiments of the present utility model, the clamping mechanism 400 includes a magnetic gauge stand 440, the magnetic gauge stand 440 is provided with a rotating shaft, an end of the rotating shaft is connected with a support arm 420, an end of the support arm 420 is connected with a pressing rod 430, the pressing rod 430 is in threaded connection with the support arm 420, one end of the pressing rod 430 faces the positioning seat 200, a pressing block 431 is provided, the pressing block 431 is provided with a rubber pad, the other end of the pressing rod 430 is provided with a torsion part 432, and the torsion part 432 can be provided as a V-shaped sheet, so that the operation of a human hand is facilitated. When the magnetic gauge stand is used, the workpiece 500 is firstly arranged on the positioning seat 200, then the four clamping jaws 300 clamp the workpiece 500 from the periphery, then the magnetic gauge stand 440 is adsorbed at the end parts of the clamping jaws 300, the supporting arm 420 is pushed to rotate, the pressing rod 430 corresponds to the workpiece 500, then the pressing rod 430 is twisted, the pressing block 431 is pressed on the end face of the workpiece 500, the workpiece 500 is fixed in the axial direction and the radial direction at the same time, and the processing stability and the processing precision are better.
In still other embodiments of the present utility model, the clamping mechanism 400 employs a corner cylinder having an arm with a compression bar disposed at an end thereof toward the nest 200 and a press block having a rubber pad. When the workpiece 500 is used, the workpiece 500 is firstly arranged on the positioning seat 200, then the four clamping jaws 300 clamp the workpiece 500 from the periphery, then the corner cylinder acts, the support arm rotates, the pressing rod is aligned with the workpiece 500, then the pressing block 431 for pushing the pressing rod 430 is pressed on the end face of the workpiece 500, the workpiece 500 is simultaneously fixed in the axial direction and the radial direction, and the processing stability and the processing precision are better. It should be appreciated that the clamping mechanism 400 and the clamping jaw 300 are detachably connected, such as a corner cylinder is mounted to the clamping jaw 300 via a magnetic gauge stand, or is mounted to the clamping jaw 300 via bolts, the workpiece is clamped by four clamping jaws 300, and then the clamping mechanism 400 is mounted to fix the workpiece in the axial direction.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.
Claims (8)
1. A split eccentric workpiece machining fixture, comprising:
the lathe comprises a base, wherein the base is used for being connected with a lathe, a first inserting hole and a second inserting hole are formed in the end face of the base, the first inserting hole deviates from the axis of the base, and the second inserting hole deviates from the axis of the first inserting hole;
The positioning seat is connected to the base, one end of the positioning seat is provided with a first bolt and a second bolt, the other end of the positioning seat is provided with a first positioning pin and a second positioning pin, the first bolt is inserted into the first insertion hole, the second bolt is inserted into the second insertion hole, and the first positioning pin and the second positioning pin are used for positioning a workpiece;
The clamping jaws are connected to the base in a sliding mode, the clamping jaws can move along the radial direction of the first bolt, and the clamping jaws are distributed at intervals around the circumference of the first bolt.
2. The split eccentric workpiece processing fixture of claim 1, wherein a diameter of the second pin is smaller than a diameter of the second locating pin.
3. The split eccentric workpiece processing fixture of claim 2, wherein the first pin is coaxially disposed with the first locating pin, and the second pin is spaced from the first pin a greater distance than the second locating pin.
4. The split eccentric workpiece processing clamp according to claim 1, wherein the base is provided with a plurality of sliding grooves, the sliding grooves are arranged along the radial direction of the first bolt, and the clamping jaw is provided with a sliding block arranged on the sliding grooves.
5. The split eccentric workpiece processing clamp of claim 1, wherein a detachable clamping mechanism is connected to an end face of the clamping jaw facing away from the base, the clamping mechanism cooperating with the positioning seat to clamp the workpiece.
6. The split eccentric workpiece processing clamp of claim 5, wherein the clamping mechanism comprises a cylinder, a piston rod of the cylinder is connected with a support arm, a compression rod is arranged at the end part of the support arm, and the end part of the compression rod faces the positioning seat.
7. The split eccentric workpiece processing clamp according to claim 5, wherein the clamping mechanism comprises a magnetic gauge stand, the magnetic gauge stand is provided with a rotating shaft, an end portion of the rotating shaft is connected with a support arm, an end portion of the support arm is connected with a pressing rod, the pressing rod is in threaded connection with the support arm, one end of the pressing rod faces the positioning seat, and a torsion portion is arranged at the other end of the pressing rod.
8. The split eccentric workpiece processing clamp of claim 5, wherein the clamping mechanism comprises a corner cylinder having a support arm with an end provided with a plunger, the end of the plunger being oriented toward the positioning seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323426893.XU CN221773958U (en) | 2023-12-14 | 2023-12-14 | A split type eccentric workpiece processing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323426893.XU CN221773958U (en) | 2023-12-14 | 2023-12-14 | A split type eccentric workpiece processing fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221773958U true CN221773958U (en) | 2024-09-27 |
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ID=92829954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323426893.XU Active CN221773958U (en) | 2023-12-14 | 2023-12-14 | A split type eccentric workpiece processing fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221773958U (en) |
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2023
- 2023-12-14 CN CN202323426893.XU patent/CN221773958U/en active Active
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