CN216029526U - Oil pressure internal stay formula clamping jaw positioning jig suitable for thin wall spare - Google Patents
Oil pressure internal stay formula clamping jaw positioning jig suitable for thin wall spare Download PDFInfo
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- CN216029526U CN216029526U CN202122210156.0U CN202122210156U CN216029526U CN 216029526 U CN216029526 U CN 216029526U CN 202122210156 U CN202122210156 U CN 202122210156U CN 216029526 U CN216029526 U CN 216029526U
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Abstract
The utility model provides an oil pressure internal stay formula clamping jaw positioning jig suitable for thin wall spare, includes PMKD, the PMKD top is provided with the work platen, be provided with the oil pressure chuck between PMKD and the work platen, be provided with a plurality of internal stay jack catchs on the oil pressure chuck, be provided with the star groove that is used for internal stay jack catch to walk on the work platen, star groove side is provided with work piece clamping mechanism and work piece positioning mechanism. The novel structure is simple, the use is easy, and the contact between the inner support clamping jaw and the workpiece is line contact by arranging the arc-shaped block, so that the requirement on central positioning is met; the workpiece clamping mechanism and the workpiece positioning mechanism are arranged, so that the workpiece cannot move in the clamping and machining process, and machining failure caused by positioning failure is avoided.
Description
Technical Field
The utility model relates to an oil pressure internal support type clamping jaw positioning jig suitable for thin-walled parts.
Background
The thin-wall part is usually processed by adopting the sub-procedures, the processing time is long, the efficiency is low, and the thin-wall part is easy to collide and damage in the process of circulation, so that the manufacturing cost of the product is high. In order to reduce the manufacturing cost of the thin-wall part, part of manufacturers choose to reduce the clamping times by adopting special tools, but the special tools are complex in design and are not suitable for trial production and small-batch production, so that a positioning jig with certain universality is needed.
Disclosure of Invention
The utility model aims to provide an oil pressure internal support type clamping jaw positioning jig suitable for thin-walled parts, which can quickly and stably clamp, shorten the processing working time, reduce the cost and ensure the processing stability of products.
The technical scheme of the utility model is as follows: the utility model provides an oil pressure internal stay formula clamping jaw positioning jig suitable for thin wall spare, includes PMKD, the PMKD top is provided with the work platen, be provided with the oil pressure chuck between PMKD and the work platen, be provided with a plurality of internal stay jack catchs on the oil pressure chuck, be provided with the star groove that is used for internal stay jack catch to walk on the work platen, star groove side is provided with work piece clamping mechanism and work piece positioning mechanism.
Further, an oil inlet of the oil pressure chuck is provided with a pressure regulating valve for regulating the force of the inner supporting jaw.
Furthermore, the internal supporting jaw comprises a base fixedly connected with the oil pressure chuck, a jaw part is arranged at the end part of the base, and an arc-shaped block is arranged on one surface, which is in contact with the workpiece, of the jaw part.
Further, the workpiece clamping mechanism comprises a plurality of telescopic oil cylinders which are uniformly distributed along the circumferential direction of the axis of the oil pressure chuck, the telescopic oil cylinders are fixed on the working table plate, a screw rod is arranged at the tail end of a push rod of each telescopic oil cylinder, a pressing block is sleeved on each screw rod, and the pressing block is fixedly connected with the push rod of each telescopic oil cylinder through a nut.
Furthermore, the briquetting is the wedge, and its bottom surface is provided with the rubber slipmat.
Furthermore, the workpiece positioning mechanism comprises a fixed block arranged on the working table plate, a positioning block is arranged at the top of the fixed block, a profiling protrusion matched with the surface of the workpiece is arranged on the positioning block, a positioning oil cylinder is arranged beside the fixed block and is located right opposite to the profiling protrusion, and a push rod of the positioning oil cylinder is matched with the profiling protrusion.
Furthermore, the oil pressure of the positioning oil cylinder is larger than that of the oil pressure chuck.
Compared with the prior art, the utility model has the following advantages: the novel structure is simple, the use is easy, and the contact between the inner support clamping jaw and the workpiece is line contact by arranging the arc-shaped block, so that the requirement on central positioning is met; the workpiece clamping mechanism and the workpiece positioning mechanism are arranged, so that the workpiece cannot move in the clamping and machining process, and machining failure caused by positioning failure is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a side view of the present invention;
in the figure: 1-fixed bottom plate, 2-working table plate, 3-oil pressure chuck, 4-internal support jaw, 5-star-shaped groove, 6-base, 7-claw part, 8-arc block, 9-telescopic oil cylinder, 10-pressing block, 11-nut, 12-fixed block, 13-positioning block, 14-profiling protrusion and 15-positioning oil cylinder.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to fig. 1-3.
The utility model provides an oil pressure internal stay formula clamping jaw positioning jig suitable for thin wall spare, includes PMKD, the PMKD top is provided with the work platen, be provided with the oil pressure chuck between PMKD and the work platen, be provided with a plurality of internal stay jack catchs on the oil pressure chuck, 3 usually, be provided with the star groove that is used for internal stay jack catch to walk on the work platen, star groove side is provided with work piece clamping mechanism and work piece positioning mechanism.
In this embodiment, the oil inlet of oil pressure chuck is provided with the air-vent valve that is used for adjusting the internal stay jack catch dynamics to guarantee that its oil pressure can not be too big, the protection work piece.
In this embodiment, the internal stay jack catch include with oil pressure chuck fixed connection's base, the tip of base is provided with the claw, be provided with the arc piece on the one side that claw and work piece contacted to it is line contact to guarantee to prop the contact between jack catch and the work piece in, realizes automatic centering through the cooperation of a plurality of internal stay jack catches.
In this embodiment, the workpiece clamping mechanism includes a plurality of telescopic cylinders uniformly distributed along the circumferential direction of the axis of the hydraulic chuck, the telescopic cylinders are fixed on the working platen, a screw is arranged at the tail end of a push rod of each telescopic cylinder, a pressing block is sleeved on each screw, and the pressing block is fixedly connected with the push rod of each telescopic cylinder through a nut. Because the pressure of the internal supporting jaw is not large, the workpiece is easy to shift in the machining process, and therefore, a workpiece clamping mechanism is required to be adopted to ensure the stability in the machining process.
In this embodiment, the pressing block is a wedge-shaped block, and a rubber anti-slip pad is arranged on the bottom surface of the pressing block to avoid crushing the workpiece.
In this embodiment, the workpiece positioning mechanism includes a fixed block disposed on the working platen, a positioning block is disposed at the top of the fixed block, a profiling protrusion matched with the surface of the workpiece is disposed on the positioning block, a positioning oil cylinder is disposed beside the fixed block, the positioning oil cylinder is located right opposite to the profiling protrusion, and a push rod of the positioning oil cylinder is matched with the profiling protrusion. So as to eliminate the micro-rotation of the workpiece in the clamping process and reset the workpiece again.
In this embodiment, the oil pressure of the positioning oil cylinder is greater than the oil pressure of the oil pressure chuck, so as to ensure that the workpiece can rotate smoothly.
The working method comprises the following steps: placing a workpiece on an oil pressure chuck along the profiling protrusion, positioning three inner supporting jaws in the workpiece, starting the oil pressure chuck, slowly moving the inner supporting jaws outwards, and automatically centering and clamping the workpiece; starting the positioning oil cylinder, extending the push rod out to press the workpiece on the profiling protrusion to ensure the position of the workpiece; the telescopic oil cylinder is started, and the pressing block is pressed on the workpiece, so that the workpiece is prevented from moving.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (7)
1. The oil pressure internal supporting type clamping jaw positioning jig comprises a fixing base plate and is characterized in that a working table plate is arranged above the fixing base plate, an oil pressure chuck is arranged between the fixing base plate and the working table plate, a plurality of internal supporting clamping jaws are arranged on the oil pressure chuck, a star-shaped groove for the internal supporting clamping jaws to penetrate is formed in the working table plate, and a workpiece clamping mechanism and a workpiece positioning mechanism are arranged beside the star-shaped groove.
2. The oil pressure internal supporting type clamping jaw positioning jig suitable for the thin-walled workpiece according to claim 1, characterized in that an oil inlet of the oil pressure chuck is provided with a pressure regulating valve for regulating the force of the internal supporting clamping jaw.
3. The oil pressure internal support type clamping jaw positioning jig suitable for the thin-walled workpiece according to claim 1, wherein the internal support clamping jaw comprises a base fixedly connected with an oil pressure chuck, a claw part is arranged at the end part of the base, and an arc-shaped block is arranged on one surface, which is in contact with the workpiece, of the claw part.
4. The oil pressure internal supporting type clamping jaw positioning jig suitable for the thin-walled workpiece according to claim 1, characterized in that the workpiece clamping mechanism comprises a plurality of telescopic oil cylinders uniformly distributed in the circumferential direction of the axis of the oil pressure clamping disc, the telescopic oil cylinders are fixed on the working table plate, screw rods are arranged at the tail ends of push rods of the telescopic oil cylinders, pressing blocks are sleeved on the screw rods, and the pressing blocks are fixedly connected with the push rods of the telescopic oil cylinders through nuts.
5. The tool according to claim 4, wherein the pressing block is a wedge-shaped block, and a rubber anti-slip pad is arranged on the bottom surface of the wedge-shaped block.
6. The oil pressure internal supporting type clamping jaw positioning jig suitable for the thin-walled workpiece according to claim 1, wherein the workpiece positioning mechanism comprises a fixed block arranged on the working table plate, a positioning block is arranged at the top of the fixed block, a profiling protrusion matched with the surface of the workpiece is arranged on the positioning block, a positioning oil cylinder is arranged beside the fixed block and is located right opposite to the profiling protrusion, and a push rod of the positioning oil cylinder is matched with the profiling protrusion.
7. The tool according to claim 6, wherein the oil pressure of the positioning cylinder is greater than the oil pressure of the oil pressure chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122210156.0U CN216029526U (en) | 2021-09-14 | 2021-09-14 | Oil pressure internal stay formula clamping jaw positioning jig suitable for thin wall spare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122210156.0U CN216029526U (en) | 2021-09-14 | 2021-09-14 | Oil pressure internal stay formula clamping jaw positioning jig suitable for thin wall spare |
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| CN216029526U true CN216029526U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122210156.0U Active CN216029526U (en) | 2021-09-14 | 2021-09-14 | Oil pressure internal stay formula clamping jaw positioning jig suitable for thin wall spare |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115246563A (en) * | 2022-08-29 | 2022-10-28 | 歌尔科技有限公司 | Circulation positioner and production line |
| CN115401567A (en) * | 2022-09-08 | 2022-11-29 | 广东罗庚机器人有限公司 | Clamp for polishing outer container of kettle |
-
2021
- 2021-09-14 CN CN202122210156.0U patent/CN216029526U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115246563A (en) * | 2022-08-29 | 2022-10-28 | 歌尔科技有限公司 | Circulation positioner and production line |
| CN115246563B (en) * | 2022-08-29 | 2023-08-29 | 歌尔科技有限公司 | Circulation positioner and production line |
| CN115401567A (en) * | 2022-09-08 | 2022-11-29 | 广东罗庚机器人有限公司 | Clamp for polishing outer container of kettle |
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