CN212600488U - Turning clamp for processing thin-wall end cover parts - Google Patents
Turning clamp for processing thin-wall end cover parts Download PDFInfo
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- CN212600488U CN212600488U CN202020681261.5U CN202020681261U CN212600488U CN 212600488 U CN212600488 U CN 212600488U CN 202020681261 U CN202020681261 U CN 202020681261U CN 212600488 U CN212600488 U CN 212600488U
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- processing thin
- bottom plate
- intermediate body
- clamp
- end caps
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- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000006872 improvement Effects 0.000 description 7
- 238000003754 machining Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of clamp equipment, and relates to a turning clamp for processing thin-wall end cover parts, which comprises an installation bottom plate, wherein an intermediate body is installed on the top surface of the installation bottom plate, and a clamp body is installed on the top surface of the intermediate body; a plurality of pressing blocks are uniformly distributed on the fixture body along the circumference, and each pressing block penetrates through the fixture body and then is connected with a stretching mechanism arranged in the middle body and is driven by the stretching mechanism to move axially; and the stretching mechanism is also provided with an elastic mechanism so that the pressing block is in a workpiece clamping state in a natural state. The turning clamp mainly aims to solve the problem that the clamping deformation of the hydraulic three-jaw chuck cannot meet the design requirement, and achieves the purposes of utilizing a self-contained oil cylinder of a numerical control lathe, being capable of quickly clamping and positioning and greatly reducing the deformation by utilizing a lathe spindle taper hole, utilizing a part hollow structure and skillfully arranging a positioning mechanism.
Description
Technical Field
The utility model belongs to the technical field of fixture equipment, a car anchor clamps of processing thin wall end cover class part is related to.
Background
The bearing cover of the gear pump is a cast-aluminum thin-wall part, and a plurality of through grooves and inner grooves are formed in the part, so that the connecting part is further thinned. In the process of turning mass production, the problems caused by the fact that the first and the conventional lathes can only be clamped and manufactured by adopting a hydraulic three-jaw chuck are obvious, and the uncontrollable deformation of parts with hollow structures and without reinforcing rib support can cause that the machining cannot meet the design requirements. Both the inner support and the outer holding can cause the phenomena of part opening and out-of-tolerance.
Secondly, the machining property of the lathe and the particularity of the lathed part (the end faces of the inner hole wall and the outer hole wall need to be machined) cause that the clamping deformation inevitably exists basically in a mode that a pressing plate and a bolt are not used for clamping.
In summary, the difficulties in processing parts according to the prior art are as follows: the part is a precision part, the excircle of the inner hole has the requirement of extremely high roundness of 0.02, the two end faces have the requirement of parallelism of 0.03, and the excircle of the inner hole has the requirement of aperture of 0.03. The traditional mode is adopted, and the inner hole, the outer circle and the parallelism all can be out of tolerance.
Disclosure of Invention
The utility model provides a to above-mentioned problem, a car anchor clamps of processing thin-walled end cover class part is provided, this car anchor clamps main objective improve hydraulic pressure three-jaw chuck clamping and warp the unable problem that satisfies the designing requirement, utilize lathe spindle taper hole, utilize part hollow out construction to ingenious arrangement positioning mechanism realizes utilizing numerical control lathe from taking the hydro-cylinder and can quick clamping, fix a position and can be very big reduction purpose of warping.
According to the technical scheme of the utility model: the utility model provides a turning clamp of processing thin wall end cover class part which characterized in that: the fixture comprises an installation bottom plate, wherein an intermediate body is installed on the top surface of the installation bottom plate, and a fixture body is installed on the top surface of the intermediate body; a plurality of pressing blocks are uniformly distributed on the fixture body along the circumference, and each pressing block penetrates through the fixture body and then is connected with a stretching mechanism arranged in the middle body and is driven by the stretching mechanism to move axially; and the stretching mechanism is also provided with an elastic mechanism so that the pressing block is in a workpiece clamping state in a natural state.
As the utility model discloses a further improvement, the drawing mechanism is including setting up the roof in the cavity that the anchor clamps body formed with the intermediate body, roof bottom surface center fixed connection ejector pin, and the outer lane of roof is provided with the step hole that quantity and briquetting are unanimous, every set up a guide pillar in the step hole respectively, the top of guide pillar is connected with corresponding briquetting, and the lower part of guide pillar stretches into in the axial through-hole of intermediate.
As a further improvement of the utility model, the ejector pin includes first ejector pin and connects in the second ejector pin of first ejector pin lower extreme, and wherein the axial upper end of first ejector pin sets up the toper portion of a body coupling, the toper portion cooperatees with the upper portion bell groove of midbody.
As a further improvement, the elastic mechanism includes that the cover is located on the guide pillar and is placed in the first guide pin bushing in the through-hole of midbody outer lane, and belleville spring is still established to the lower extreme that corresponds to first guide pin bushing on the guide pillar, belleville spring carries out the axial spacing by gasket and the nut that the guide pillar lower extreme is connected.
As a further improvement of the utility model, between the midbody and the fixture body and between the midbody and the mounting bottom plate, the connection is respectively fastened through screws.
As a further improvement of the present invention, the top of the mounting base plate is provided with a groove, and the protrusion formed on the bottom surface of the intermediate is fitted in the groove.
As a further improvement of the utility model, the lower part of the clamp body forms a cavity, and the axial extension part of the ring shape outside the cavity is matched and arranged on the inner wall of the groove at the top of the intermediate body.
As a further improvement of the utility model, the bottom surface of mounting plate is provided with the counter bore portion, and mounting plate's outer lane sets up the connecting hole that a plurality of runs through.
The technical effects of the utility model reside in that: the product of the utility model has reasonable and ingenious structure, and can ensure accurate, safe and quick part installation; controlling reasonable and uniform pressing force, and controlling the processing and pressing deformation of the parts within 0.01; the clamping can be integrally processed and formed by one-time clamping, the three-sequence trouble of traditional rough machining → fine machining → secondary fine machining is avoided, the design of multiple oil cylinders of a traditional hydraulic tool is not needed in the manufacturing process, and the oil cylinder interface of the hydraulic three-jaw chuck can be directly utilized to realize quick, accurate and controllable positioning in the clamping task.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the middle press block of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
In fig. 1 and 2, the device comprises an installation bottom plate 1, a middle body 2, a guide pillar 3, a clamp body 4, a pressing block 5, a first guide sleeve 6, a first ejector rod 7, a second guide sleeve 8, a top plate 9, a disc spring 10, a second ejector rod 11 and the like.
As shown in fig. 1 and 2, the utility model relates to a turning fixture for processing thin-wall end cover parts, which comprises an installation bottom plate 1, an intermediate body 2 is installed on the top surface of the installation bottom plate 1, and a fixture body 4 is installed on the top surface of the intermediate body 2; a plurality of pressing blocks 5 are uniformly distributed on the fixture body 4 along the circumference, and each pressing block 5 penetrates through the fixture body 4 and then is connected with a stretching mechanism arranged in the intermediate body 2 and is driven by the stretching mechanism to move axially; and an elastic mechanism is further arranged on the stretching mechanism, so that the pressing block 5 is in a workpiece clamping state in a natural state.
The stretching mechanism comprises a top plate 9 arranged in a cavity formed by the fixture body 4 and the intermediate body 2, the center of the bottom surface of the top plate 9 is fixedly connected with ejector rods, step holes the number of which is consistent with that of the pressing blocks 5 are formed in the outer ring of the top plate 9, a guide pillar 3 is arranged in each step hole respectively, the top of each guide pillar 3 is connected with the corresponding pressing block 5, and the lower part of each guide pillar 3 extends into an axial through hole of the intermediate body 2. In specific production, four guide posts 3 are generally uniformly distributed on the intermediate body 2 along the circumference to ensure the stability and reliability of the lifting motion.
The ejector rod comprises a first ejector rod 7 and a second ejector rod 11 connected to the lower end of the first ejector rod 7, wherein the axial upper end of the first ejector rod 7 is provided with an integrally connected conical part, and the conical part is matched with the upper conical groove of the intermediate body 2.
The elastic mechanism comprises a first guide sleeve 6 which is sleeved on the guide post 3 and is arranged in a through hole of the outer ring of the intermediate body 2, a disc spring 10 is further sleeved on the guide post 3 corresponding to the lower end of the first guide sleeve 6, and the disc spring 10 is axially limited by a gasket and a nut which are connected with the lower end of the guide post 3. In the initial state, the belleville spring 10 is in a stretched open state to achieve a downward stretching tendency of the guide post 3, ensuring that the pressing block 5 is in a state of clamping a workpiece.
The intermediate body 2 and the clamp body 4 and the intermediate body 2 and the mounting bottom plate 1 are respectively fastened and connected through screws.
The top of the mounting bottom plate 1 is provided with a groove, and a bulge formed on the bottom surface of the intermediate body 2 is arranged in the groove in a matching manner.
The lower part of the clamp body 4 forms a concave cavity, and the annular axial extension part outside the concave cavity is matched and arranged on the inner wall of the groove at the top of the middle body 2.
The bottom surface of the mounting bottom plate 1 is provided with a countersink part, and the outer ring of the mounting bottom plate 1 is provided with a plurality of through connecting holes.
The utility model discloses the working process of product is as follows: in the concrete production, the upper end of the pressing block 5 forms a hook piece. The lower end of the pressing block 5 is connected with the guide pillar 3, the second ejector rod 11 is connected with the hydraulic oil cylinder during working, the oil cylinder pushes up to drive the top plate 9 to push up, the top plate 9 drives the guide pillar 3 and the pressing block 5 to push up, and accordingly loosening of workpieces is achieved. The utility model discloses the product can avoid excircle, terminal surface and hole at the during operation, can once quick clamping accomplish the processing of part.
Claims (8)
1. The utility model provides a turning clamp of processing thin wall end cover class part which characterized in that: the fixture comprises an installation bottom plate (1), wherein an intermediate body (2) is installed on the top surface of the installation bottom plate (1), and a fixture body (4) is installed on the top surface of the intermediate body (2); a plurality of pressing blocks (5) are uniformly distributed on the clamp body (4) along the circumference, and each pressing block (5) penetrates through the clamp body (4) and then is connected with a stretching mechanism arranged in the intermediate body (2) and is driven by the stretching mechanism to move axially; and an elastic mechanism is further arranged on the stretching mechanism, so that the pressing block (5) is in a workpiece clamping state in a natural state.
2. The turning jig for processing thin-walled end caps of claim 1, wherein: the drawing mechanism comprises a top plate (9) arranged in a cavity formed by a clamp body (4) and an intermediate body (2), the center of the bottom surface of the top plate (9) is fixedly connected with a top rod, step holes the number of which is consistent with that of pressing blocks (5) are formed in the outer ring of the top plate (9), a guide pillar (3) is arranged in each step hole, the top of each guide pillar (3) is connected with the corresponding pressing block (5), and the lower part of each guide pillar (3) extends into an axial through hole of the intermediate body (2).
3. The turning jig for processing thin-walled end caps and the like as claimed in claim 2, wherein: the ejector rod comprises a first ejector rod (7) and a second ejector rod (11) connected to the lower end of the first ejector rod (7), wherein the axial upper end of the first ejector rod (7) is provided with an integrally connected conical part, and the conical part is matched with the upper conical groove of the intermediate body (2).
4. The turning jig for processing thin-walled end caps of claim 1, wherein: the elastic mechanism comprises a first guide sleeve (6) which is sleeved on the guide post (3) and is arranged in a through hole in the outer ring of the intermediate body (2), a disc spring (10) is further sleeved on the guide post (3) corresponding to the lower end of the first guide sleeve (6), and the disc spring (10) is axially limited by a gasket and a nut which are connected with the lower end of the guide post (3).
5. The turning jig for processing thin-walled end caps of claim 1, wherein: the middle body (2) and the clamp body (4) and the middle body (2) and the mounting bottom plate (1) are respectively connected through screws in a fastening mode.
6. The turning jig for processing thin-walled end caps of claim 1, wherein: the top of the mounting bottom plate (1) is provided with a groove, and a protruding part formed on the bottom surface of the intermediate body (2) is arranged in the groove in a matched mode.
7. The turning jig for processing thin-walled end caps of claim 1, wherein: the lower part of the clamp body (4) forms a concave cavity, and the annular axial extension part outside the concave cavity is arranged on the inner wall of the groove at the top of the middle body (2) in a matching way.
8. The turning jig for processing thin-walled end caps of claim 1, wherein: the bottom surface of the mounting bottom plate (1) is provided with a countersink part, and the outer ring of the mounting bottom plate (1) is provided with a plurality of through connecting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020681261.5U CN212600488U (en) | 2020-04-28 | 2020-04-28 | Turning clamp for processing thin-wall end cover parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020681261.5U CN212600488U (en) | 2020-04-28 | 2020-04-28 | Turning clamp for processing thin-wall end cover parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212600488U true CN212600488U (en) | 2021-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020681261.5U Active CN212600488U (en) | 2020-04-28 | 2020-04-28 | Turning clamp for processing thin-wall end cover parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212600488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376093A (en) * | 2020-04-28 | 2020-07-07 | 无锡威孚精密机械制造有限责任公司 | Turning clamp for processing thin-wall end cover parts |
-
2020
- 2020-04-28 CN CN202020681261.5U patent/CN212600488U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376093A (en) * | 2020-04-28 | 2020-07-07 | 无锡威孚精密机械制造有限责任公司 | Turning clamp for processing thin-wall end cover parts |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 202, Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province, 214000 Patentee after: Wuxi Weifu Precision Machinery Manufacturing Co.,Ltd. Country or region after: China Address before: No. 202, Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province Patentee before: Wuxi Weifu Precision Machinery Manufacturing Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |