CN216463099U - Hydraulic clamping device for thin-wall ring piece - Google Patents
Hydraulic clamping device for thin-wall ring piece Download PDFInfo
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- CN216463099U CN216463099U CN202122111708.2U CN202122111708U CN216463099U CN 216463099 U CN216463099 U CN 216463099U CN 202122111708 U CN202122111708 U CN 202122111708U CN 216463099 U CN216463099 U CN 216463099U
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Abstract
The utility model discloses a hydraulic clamping device for a thin-wall ring piece, which comprises a clamp panel, a thin-wall ring piece positioning device fixed on the clamp panel and a corner clamp for hydraulically controlling radial movement, wherein the corner clamp is distributed on the clamp panel in an inner circle and an outer circle. According to the utility model, through the design of inner and outer ring division of the hydraulic clamp, the stress direction of the clamp is adjusted from 'radial clamping' to 'axial clamping', through the change of the stress direction and uniform clamping force, the uniform and uniform clamping force is realized, the replacement and adjustment of the pressing plate can be completed without moving a workpiece, the problem of clamping deformation of the thin-wall ring is effectively solved, the rapid replacement is realized, the uniform reference after replacement is ensured, and the precision of the product is improved.
Description
Technical Field
The utility model relates to the technical field of hydraulic clamping, in particular to a hydraulic clamping device for a thin-wall ring piece.
Background
The ring piece is used as a key accessory of a rail locomotive gear transmission system and is mainly used for sealing in the gear transmission system so as to prevent lubricating oil from leaking in the operation process of a gear box. As a rigid sealing element, the sealing element has the characteristics of high precision requirement, thin wall and multiple grooves, and is easy to deform in the machining process, so that the precision requirement cannot be met, the sealing performance is influenced, and the clamping mode in the machining process is one of the key factors for controlling deformation.
At present, clamping modes of processing the ring piece on a horizontal lathe mostly adopt a method of assembling a mechanical pressing plate by a clamping jaw, an expansion sleeve and a special tool. For example, the CN201020557343.5 easily-deformable annular workpiece numerical control machining clamp device ensures the circumferential degree of an annular workpiece by setting the inner arc of the annular workpiece clamp to be the same as the outer diameter of the machined workpiece, setting the outer arc of the annular workpiece clamp to be the same as the inner diameter of the machined workpiece, and setting a fixing bolt to clamp stably. The clamping correction method has the advantages of low efficiency of clamping correction, high requirement on the operating skill of workers and control of clamping force according to the experience of operators. The quick clamping cannot be realized, and the processing quality is stable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a hydraulic clamping device for thin-wall rings, aiming at the defect that the existing clamping device deforms when clamping the thin-wall rings.
The purpose of the utility model is realized by the following technical scheme:
a hydraulic clamping device for a thin-wall ring piece comprises a clamp panel, a positioning device for the thin-wall ring piece fixed on the clamp panel, and a corner clamp group, wherein the inner circle and the outer circle of the corner clamp group are distributed on two sides of the positioning device; the corner clamp group comprises a plurality of inner ring hydraulic oil cylinders and outer ring hydraulic oil cylinders which are controlled through hydraulic oil paths, and corner clamps which are controlled by the inner ring hydraulic oil cylinders and the outer ring hydraulic oil cylinders to move radially. According to the utility model, the hydraulic pressure plate is adopted to hydraulically control the inner and outer ring clamping, so that the machining benchmarks of the outer circle and the inner hole are unified, the reloading speed can be improved, the tool setting time is shortened, and the machining precision is improved.
Furthermore, a fixture height-fixing block is further arranged on the fixture panel between the inner ring corner fixture group and the outer ring corner fixture group, so that the height of the thin-wall ring piece can be increased, and the low-position clamping of the ring piece is facilitated.
Furthermore, the positioning device is a positioning shaft matched with the positioning hole in the thin-wall ring piece and used for quickly positioning and clamping the thin-wall ring piece.
Further, the corner fixture comprises a rotating shaft, a connecting block and a pressing plate, one end of the rotating shaft is connected with the corner fixture oil cylinder, the other end of the rotating shaft is connected with one end of the connecting block, and the pressing plate is arranged at the other end of the connecting block.
Furthermore, a flexible buffer material is arranged on the contact surface of the pressure plate and the thin-wall ring piece, so that the surface of the workpiece is prevented from being stamped.
Furthermore, the corner clamps of the inner ring corner clamp group and the outer ring corner clamp group are uniformly distributed on the panel at intervals, so that the clamping force is uniform and uniform.
Further, the height of the corner clamp of the inner ring hydraulic oil cylinder in the radial direction is higher than that of the corner clamp of the outer ring hydraulic oil cylinder.
Further, the inner ring corner clamp group comprises 3-6 corner clamps and 5-10 corner clamps.
Furthermore, the center of the clamp panel is provided with a positioning mandrel connected with a rotatable main shaft, so that the clamp is convenient to process.
Furthermore, a lifting ring hole position is further arranged on the clamp panel and used for assembling and disassembling the clamp on equipment.
Compared with the prior art, the beneficial effects are:
according to the utility model, through the design of inner and outer ring division of the hydraulic clamp, the stress direction of the clamp is adjusted from 'radial clamping' to 'axial clamping', through the change of the stress direction and uniform clamping force, the uniform and uniform clamping force is realized, and the deformation caused by the clamping of the thin-wall ring piece is effectively solved. According to the utility model, through the grouping control of the outer ring and the inner ring hydraulic clamps, when the outer circle of the thin-wall ring piece is processed, the inner ring hydraulic pressure plate is used for clamping, and the outer ring pressure plate is not used for clamping. After the outer circle is machined, the outer ring hydraulic pressure plate is clamped, after the outer circle is clamped, the inner ring hydraulic pressure plate is loosened, the machining position is avoided, inner hole machining is conducted, the clamp plate can be changed and adjusted under the condition that a workpiece is not moved, clamping labor intensity of operators is reduced, the outer circle and inner hole machining datum are unified, tool setting time is shortened, and changing speed can be improved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
The fixture comprises a fixture panel 1, a hydraulic oil cylinder 2, a rotating shaft 3, a connecting block 4, a pressing plate 5, a fixture height-fixing block 6, a positioning mandrel 7, a main shaft 8 and a thin-wall ring 9.
Detailed Description
The following examples are further explained and illustrated, but the present invention is not limited in any way by the specific examples. The methods and equipment used in the examples are conventional in the art, unless otherwise specified.
Example 1
A hydraulic clamping device for a thin-wall ring piece comprises a clamp panel 1, a hydraulic oil cylinder 2, a corner clamp and a positioning shaft, wherein the positioning shaft matched with a positioning hole in the thin-wall ring piece 9 is arranged on the clamp panel 1 and is quickly positioned on the clamp panel 1, and a clamp height-setting block 6 is arranged below the thin-wall ring piece 9. According to the position of the thin- wall ring piece 9, 6 inner-ring hydraulic oil cylinders 2 and 6 outer-ring hydraulic oil cylinders 2 are respectively distributed on the inner ring and the outer ring of the thin-wall ring piece 9, and the radial movement of the corner clamps on the inner-ring hydraulic oil cylinders 2 and the outer-ring hydraulic oil cylinders 2 is controlled through hydraulic oil paths respectively. The center of the clamp panel is also provided with a positioning mandrel 7 which is connected with a rotatable main shaft 8, so that the clamp panel can be conveniently rotated and processed, and the side surface of the clamp panel is provided with a hanging ring hole position which is convenient for the device to be detached.
The corner fixture comprises a rotating shaft 3, a connecting block 4 and a pressing plate 5, one end of the rotating shaft 3 is connected with the hydraulic oil cylinder 2, the connecting block 4 is arranged on the rotating shaft 3, the pressing plate 5 is arranged at the tail end of the connecting block 4, a rubber pad is arranged on the pressing plate 5, and the pressing is controlled by the hydraulic oil cylinder 2 to be uniformly pressed on the thin-wall ring machining part 9. When the outer circle is processed, the corner clamp of the inner circle clamps, and the corner clamp of the outer circle does not clamp. After the outer circle of the thin-wall ring piece 9 is machined, the corner clamp of the outer ring is clamped, after the outer ring is clamped, the corner clamp of the inner ring is loosened, the machining position is avoided, inner hole machining is conducted, the machined workpiece cannot be moved in the process, the outer circle and inner hole machining datum are unified, the reloading speed can be improved, the tool setting time is shortened, and the production efficiency is effectively improved.
Example 2
A hydraulic clamping device for a thin-wall ring piece comprises a clamp panel 1, a hydraulic oil cylinder 2, a corner clamp and a positioning shaft, wherein a clamp height-fixing block which is matched with the shape of the thin-wall ring piece 9 and has a certain height is arranged on the clamp panel 1, and the clamp height-fixing block is quickly positioned on the clamp panel 1. According to the position of the thin- wall ring piece 9, 6 inner-ring hydraulic oil cylinders 2 and 6 outer-ring hydraulic oil cylinders 2 are respectively distributed on the inner ring and the outer ring of the thin-wall ring piece 9, and the radial movement of the corner clamps on the inner-ring hydraulic oil cylinders 2 and the outer-ring hydraulic oil cylinders 2 is controlled through hydraulic oil paths respectively. The height of the corner clamp of the hydraulic oil cylinder 2 at the inner ring in the radial direction is higher than that of the corner clamp of the hydraulic oil cylinder 2 at the outer ring, and the thin-wall ring pieces 9 are respectively fixed, so that the clamping stability of the thin-wall ring pieces is ensured. The center of the clamp panel is also provided with a positioning mandrel 7 which is connected with a rotatable main shaft 8, so that the clamp panel can be conveniently rotated and processed, and the side surface of the clamp panel is provided with a hanging ring hole position which is convenient for the device to be detached.
The corner fixture comprises a rotating shaft 3, a connecting block 4 and a pressing plate 5, one end of the rotating shaft 3 is connected with the hydraulic oil cylinder 2, the connecting block 4 is arranged on the rotating shaft 3, the pressing plate 5 is arranged at the tail end of the connecting block 4, a rubber pad is arranged on the pressing plate 5, and the pressing is controlled by the hydraulic oil cylinder 2 to be uniformly pressed on the thin-wall ring machining part 9. When the outer circle is processed, the corner clamp of the inner circle clamps, and the corner clamp of the outer circle does not clamp. After the outer circle of the thin-wall ring piece 9 is machined, the corner clamp of the outer ring is clamped, after the outer ring is clamped, the corner clamp of the inner ring is loosened, the machining position is avoided, inner hole machining is conducted, the machined workpiece cannot be moved in the process, the outer circle and inner hole machining datum are unified, the reloading speed can be improved, the tool setting time is shortened, and the production efficiency is effectively improved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A hydraulic clamping device for a thin-wall ring is characterized by comprising a clamp panel, a positioning device for the thin-wall ring fixed on the clamp panel, and corner clamp groups distributed on two sides of the positioning device in an inner circle and an outer circle; the corner clamp group comprises a plurality of inner ring hydraulic oil cylinders and outer ring hydraulic oil cylinders which are controlled through hydraulic oil paths, and corner clamps which are controlled by the inner ring hydraulic oil cylinders and the outer ring hydraulic oil cylinders to move radially.
2. The hydraulic clamping device for the thin-walled ring according to claim 1, wherein the clamp panel is further provided with equal-height positioning cushion blocks.
3. The hydraulic clamping device for the thin-walled ring according to claim 1, wherein the positioning device is a positioning shaft which is matched with the positioning hole in the thin-walled ring.
4. The hydraulic clamping device for the thin-walled ring according to claim 1, wherein the corner clamp comprises a rotating shaft connected with the hydraulic oil cylinder, a connecting block arranged on the rotating shaft and a pressing plate pressed in contact with the thin-walled ring.
5. The hydraulic clamping device for the thin-walled ring according to claim 4, wherein the contact surface of the pressure plate and the thin-walled ring is provided with a flexible buffer material.
6. The hydraulic clamping device for the thin-walled ring according to claim 1, wherein the hydraulic oil cylinders on the inner ring and the outer ring are uniformly distributed on the clamp panel at intervals.
7. The hydraulic clamping device for the thin-walled ring according to claim 1, wherein the height of the corner clamp of the inner ring hydraulic oil cylinder in the radial direction is higher than that of the corner clamp of the outer ring hydraulic oil cylinder.
8. The hydraulic clamping device for the thin-walled ring part according to claim 1, wherein the corner clamp group comprises 3-6 outer ring hydraulic cylinders and 3-6 inner ring hydraulic cylinders.
9. The hydraulic clamping device for the thin-walled ring according to claim 1, wherein a positioning mandrel is arranged at the center of the clamp panel and connected with a rotatable main shaft.
10. The hydraulic clamping device for the thin-walled ring according to claim 1, wherein a hanging ring hole position convenient to detach is further formed in the clamp panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122111708.2U CN216463099U (en) | 2021-09-02 | 2021-09-02 | Hydraulic clamping device for thin-wall ring piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122111708.2U CN216463099U (en) | 2021-09-02 | 2021-09-02 | Hydraulic clamping device for thin-wall ring piece |
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| Publication Number | Publication Date |
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| CN216463099U true CN216463099U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122111708.2U Active CN216463099U (en) | 2021-09-02 | 2021-09-02 | Hydraulic clamping device for thin-wall ring piece |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114850921A (en) * | 2022-06-14 | 2022-08-05 | 苏州香农科技有限公司 | Flexible dish of intelligence wheel hub hole processing frock board of stopping |
| CN115194508A (en) * | 2022-06-29 | 2022-10-18 | 中国航发动力股份有限公司 | Combined clamp for profile auxiliary supporting thin-wall annular part |
| CN115213500A (en) * | 2022-08-11 | 2022-10-21 | 中船第九设计研究院工程有限公司 | High-precision manufacturing process method for internal and external threads capable of maintaining coaxiality |
-
2021
- 2021-09-02 CN CN202122111708.2U patent/CN216463099U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114850921A (en) * | 2022-06-14 | 2022-08-05 | 苏州香农科技有限公司 | Flexible dish of intelligence wheel hub hole processing frock board of stopping |
| CN115194508A (en) * | 2022-06-29 | 2022-10-18 | 中国航发动力股份有限公司 | Combined clamp for profile auxiliary supporting thin-wall annular part |
| CN115194508B (en) * | 2022-06-29 | 2023-09-22 | 中国航发动力股份有限公司 | Combined clamp for molded surface auxiliary supporting thin-wall annular piece |
| CN115213500A (en) * | 2022-08-11 | 2022-10-21 | 中船第九设计研究院工程有限公司 | High-precision manufacturing process method for internal and external threads capable of maintaining coaxiality |
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