CN214685413U - Automatic centering and clamping device for differential shell - Google Patents
Automatic centering and clamping device for differential shell Download PDFInfo
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- CN214685413U CN214685413U CN202120482843.5U CN202120482843U CN214685413U CN 214685413 U CN214685413 U CN 214685413U CN 202120482843 U CN202120482843 U CN 202120482843U CN 214685413 U CN214685413 U CN 214685413U
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Abstract
The utility model relates to a differential mechanism shell automatic centering clamping device, which comprises a base and a supporting disc fixed on the base, wherein the middle part of the supporting disc is provided with a placing hole, and a conical positioning mechanism is arranged in the placing hole; the conical positioning mechanism comprises a pull rod, a conical cylinder which is penetrated by the pull rod and is coaxial with the pull rod, and an expansion sleeve which is sleeved outside the conical cylinder, the diameter of the conical cylinder is gradually reduced from top to bottom, and the pull rod pulls the conical cylinder downwards to enable the conical cylinder to expand the expansion sleeve; a positioning pin which can be inserted into the workpiece positioning groove and used for positioning the workpiece is arranged above the supporting disc; and a pressing mechanism for pressing the surface of the workpiece is arranged on the side of the supporting disk. The conditions of workpiece looseness, displacement and the like in the machining process can be effectively avoided, the uniform concentricity and position degree of the workpiece during machining are ensured, the workpiece machining deviation is avoided, and the product machining quality is ensured.
Description
Technical Field
The utility model relates to a differential mechanism shell processing technology field especially relates to a differential mechanism shell automatic centering clamping device.
Background
In the differential case machining process, the differential case needs to be fixed for circumferential hole machining. In order to facilitate machining, a center hole of a differential shell generally needs to be positioned at present, when an existing workpiece is clamped and machined, clamping is unstable, the situations of workpiece loosening, displacement and the like are easy to occur, the uniform concentricity and position degree of the workpiece during machining are difficult to guarantee, workpiece machining deviation is caused, and product quality is affected.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide a differential mechanism shell self-centering clamping device.
The utility model is realized by the following technical proposal, provides an automatic centering and clamping device of a differential shell, which comprises a base and a supporting disc fixed on the base, wherein the middle part of the supporting disc is provided with a placing hole, and a conical positioning mechanism is arranged in the placing hole; the conical positioning mechanism comprises a pull rod, a conical cylinder which is penetrated by the pull rod and is coaxial with the pull rod, and an expansion sleeve which is sleeved outside the conical cylinder, the diameter of the conical cylinder is gradually reduced from top to bottom, and the pull rod pulls the conical cylinder downwards to enable the conical cylinder to expand the expansion sleeve; a positioning pin which can be inserted into the workpiece positioning groove and used for positioning the workpiece is arranged above the supporting disc; and a pressing mechanism for pressing the surface of the workpiece is arranged on the side of the supporting disk.
Preferably, the expansion sleeve is provided with a plurality of long grooves along the axial direction, the long grooves are uniformly distributed along the circumferential direction of the expansion sleeve, the inner surface of the expansion sleeve is a conical surface capable of being attached to a conical cylinder, and the outer surface of the expansion sleeve is a fixing surface capable of being attached to a central hole of a workpiece.
Preferably, the expansion sleeve is fixed with the base through the positioning seat, the bottom of the expansion sleeve is fixed on the positioning seat, and the positioning seat is fixedly connected with the base through a bolt.
Preferably, the upper end of the pull rod is clamped on the conical cylinder, and the lower end of the pull rod penetrates through the base to be connected with the driving piece.
Preferably, the driving member is a cylinder. The change of the circumferential size of the expansion sleeve can be realized by controlling the pull rod through the cylinder. The cylinder pull-down rod, pull rod pull-down toper cylinder, along with toper cylinder get into the cover that rises degree of depth increase gradually, when the outer circumference diameter that gets into the cover that rises is greater than the cover hole diameter that rises, the cover excircle that rises is by the extrusion grow of toper face of cylinder to the realization is with the work piece location clamp tightly. The conical positioning mechanism can be used for positioning the workpiece in the axial direction, the radial direction and the circumferential direction, so that the workpiece can be positioned in all directions.
Preferably, a positioning block is arranged on one side of the supporting disc, a transverse through hole is formed in the positioning block, and the positioning pin penetrates through the transverse through hole and is inserted into the workpiece positioning groove.
Preferably, the positioning block is fixed to the bottom of the outer side of the supporting disc through a bolt. One end of the positioning pin inserted into the workpiece positioning groove is matched with the workpiece positioning groove, and the workpiece is circumferentially and preliminarily positioned through the positioning pin.
Preferably, the pressing mechanism comprises a screw rod which is vertically arranged and fixed with the base and a pressing plate which is penetrated through by the screw rod, and a locking nut is in threaded connection with the screw rod above the pressing plate. The pressing of the pressing plate on the workpiece is realized by screwing the locking nut.
Preferably, the pressure plate is provided with a long through hole along the long axis direction of the pressure plate, and the screw rod penetrates through the long through hole and can move in the long through hole; the workpiece is conveniently limited and removed. One end of the pressing plate, which is used for pressing the workpiece, is provided with a U-shaped notch. The contact area between the pressing plate and the workpiece can be reduced as much as possible, and the processing of the circumferential hole of the workpiece is facilitated.
Preferably, one end of the pressure plate is supported on a supporting block, and the supporting block is fixed on the base; when the pressing device is used for pressing, one end of the pressing plate is supported by the supporting block, and the other end of the pressing plate is pressed on a workpiece, so that the pressing stability is guaranteed. The supporting shoe upper end sets up the draw-in groove, the clamp plate is placed in the draw-in groove. Can be spacing to the clamp plate horizontal direction, the reinforcing is to the effect that compresses tightly of work piece.
Preferably, the two pressing mechanisms are oppositely arranged on two sides of the supporting disk. The pressing effect on the workpiece can be ensured, and the axial direction of the workpiece can be further positioned through the pressing mechanism.
The utility model has the advantages that:
the utility model discloses simple structure, convenient operation gradually realizes stabilizing the location to the work piece through locating pin, toper positioning mechanism and hold-down mechanism, can effectively avoid the condition such as the work piece is not hard up, aversion in the course of working, has guaranteed that the work piece adds man-hour unified concentricity and position degree, has avoided the work piece to process the deviation, has guaranteed product processingquality.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic longitudinal sectional structure of the present invention;
FIG. 3 is an exploded view of the self-centering clamping mechanism of the present invention;
FIG. 4 is a schematic view of the top view structure of the present invention after placing a workpiece;
FIG. 5 is a left side view of the workpiece after being placed;
shown in the figure:
1. the base, 2, support disc, 3, place the hole, 4, pull rod, 5, toper cylinder, 6, the cover that rises, 7, positioning seat, 8, cylinder, 9, work piece, 10, locating pin, 11, locating piece, 12, screw rod, 13, clamp plate, 14, lock nut, 15, rectangular through-hole, 16, supporting shoe, 17, U-shaped breach.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
As shown in fig. 1, 2, 3, 4 and 5, the utility model discloses a base 1 and the support disc 2 of fixing on base 1, support disc 2 middle part sets up places hole 3, places and installs toper positioning mechanism in the hole 3.
The conical positioning mechanism comprises a pull rod 4, a conical cylinder 5 which is penetrated by the pull rod 4 and is coaxial with the pull rod 4, and an expansion sleeve 6 which is sleeved outside the conical cylinder 5. The expansion sleeve 6 is fixed with the base 1 through a positioning seat 7, the bottom of the expansion sleeve 6 is fixed on the positioning seat 7, and the positioning seat 7 is fixedly connected with the base 1 through a bolt.
The diameter of toper cylinder 5 diminishes from top to bottom gradually, set up a plurality of axial long striae of following on the cover 6 that rises, a plurality of long striae are evenly arranged along 6 circumferencial direction of cover that rises, and 6 internal surfaces of cover that rises are the conical surface that can laminate mutually with toper cylinder 5, and 6 surfaces of cover that rises are the stationary plane that can laminate with 9 central holes of work piece, and pull rod 4 stimulates toper cylinder 5 downwards and enables its rise and rise cover 6.
The upper end of the pull rod 4 is clamped on the conical cylinder 5, the lower end of the pull rod penetrates through the base 1 and is connected with the driving piece, and the driving piece is an air cylinder 8. The change of the circumferential size of the expansion sleeve 6 can be realized by controlling the pull rod 4 through the air cylinder 8. The cylinder 8 pulls down the pull rod 4, and the pull rod 4 pulls down the tapered cylinder 5, and along with tapered cylinder 5 gets into 6 degree of depth crescent that rise of cover that rises, when the outer circumference diameter that gets into 6 covers that rises is greater than 6 hole diameters that rise, 6 excircles that rise are by the extrusion grow of tapered cylinder 5 face to the realization is fixed a position the work piece 9 and is pressed from both sides tightly. The conical positioning mechanism can be used for positioning the workpiece 9 in the axial direction, the radial direction and the circumferential direction, so that the workpiece 9 can be positioned in all directions.
Above the support disc 2, positioning pins 10 are provided which can be inserted into positioning slots of the workpiece 9 for positioning the workpiece 9. A positioning block 11 is arranged on one side of the supporting disc 2, a transverse through hole is formed in the positioning block 11, and the positioning pin 10 penetrates through the transverse through hole and is inserted into a positioning groove of the workpiece 9. The positioning block 11 is fixed with the bottom of the outer side of the supporting disc 2 through a bolt. One end of the positioning pin 10 inserted into the positioning groove of the workpiece 9 is matched with the positioning groove of the workpiece 9, and the workpiece 9 is preliminarily positioned in the circumferential direction through the positioning pin 10.
A pressing mechanism for pressing the surface of the workpiece 9 is arranged on the side of the supporting disk 2. The pressing mechanism comprises a screw 12 which is vertically arranged and fixed with the base 1 and a pressing plate 13 which is penetrated through by the screw 12, a locking nut 14 is connected on the screw 12 above the pressing plate 13 in a threaded mode, and the pressing of the pressing plate 13 on the workpiece 9 is achieved by screwing the locking nut 14.
Set up the rectangular through-hole 15 along its major axis direction on the clamp plate 13, screw rod 12 passes rectangular through-hole 15 and can remove in rectangular through-hole 15, and it is spacing to convenient spacing and the release of work piece 9.
In order to ensure the stability of the pressing plate 13 for pressing the workpiece 9, one end of the pressing plate 13 is supported on a supporting block 16, the supporting block 16 is fixed on the base 1, and when the pressing plate 13 is pressed, one end of the pressing plate 13 is supported by the supporting block 16, and the other end of the pressing plate is pressed on the workpiece 9, so that the pressing stability is ensured. The upper end of the supporting block 16 is provided with a clamping groove, and the pressing plate 13 is placed in the clamping groove, so that the pressing plate 13 can be limited in the horizontal direction, and the pressing effect on the workpiece 9 is enhanced.
One end of the pressing plate 13, which is used for pressing the workpiece 9, is provided with a U-shaped notch 17, so that the contact area of the pressing plate 13 and the workpiece 9 can be reduced as much as possible, and the processing of the circumferential hole of the workpiece 9 is facilitated. In order to ensure the pressing effect on the workpiece 9, the two pressing mechanisms are oppositely arranged on two sides of the supporting disk 2. The axial positioning of the workpiece 9 can be further achieved by the pressing mechanism.
During specific work, a workpiece 9 is placed on the supporting disc 2, a central hole of the workpiece 9 is sleeved outside the expansion sleeve 6, and partial structure of the workpiece 9 is placed in the placing hole 3 in the middle of the supporting disc 2. Adjusting the positioning pin 10 to enable the positioning pin 10 to be inserted into the positioning groove of the workpiece 9, and performing primary circumferential positioning on the workpiece 9 through the positioning pin 10; then, the pull rod 4 is controlled by the cylinder 8, so that the pull rod 4 pulls the conical cylinder 5 downwards, the outer circle of the expansion sleeve 6 is extruded by the surface of the conical cylinder 5 to be enlarged, and the workpiece 9 is positioned; and finally, adjusting the pressing mechanism to enable the pressing plate 13 to press the upper surface of the workpiece 9, and further positioning the workpiece 9.
The utility model discloses simple structure, convenient operation gradually realizes stabilizing the location to work piece 9 through locating pin 10, toper positioning mechanism and hold-down mechanism, can effectively avoid the condition such as work piece 9 is not hard up, aversion in the course of working, has guaranteed that work piece 9 adds man-hour unified concentricity and position degree, has avoided work piece 9 to process the deviation, has guaranteed product processingquality.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a differential mechanism shell self-centering clamping device which characterized in that: the device comprises a base and a supporting disc fixed on the base, wherein a placing hole is formed in the middle of the supporting disc, and a conical positioning mechanism is arranged in the placing hole; the conical positioning mechanism comprises a pull rod, a conical cylinder which is penetrated by the pull rod and is coaxial with the pull rod, and an expansion sleeve which is sleeved outside the conical cylinder, the diameter of the conical cylinder is gradually reduced from top to bottom, and the pull rod pulls the conical cylinder downwards to enable the conical cylinder to expand the expansion sleeve; a positioning pin which can be inserted into the workpiece positioning groove and used for positioning the workpiece is arranged above the supporting disc; and a pressing mechanism for pressing the surface of the workpiece is arranged on the side of the supporting disk.
2. The differential case self-centering clamping device of claim 1, wherein: the expansion sleeve is provided with a plurality of long grooves along the axial direction, the long grooves are uniformly distributed along the circumferential direction of the expansion sleeve, the inner surface of the expansion sleeve is a conical surface which can be attached to a conical cylinder, and the outer surface of the expansion sleeve is a fixing surface which can be attached to a central hole of a workpiece.
3. The differential case self-centering clamping device of claim 1, wherein: the expansion sleeve is fixed with the base through the positioning seat, the bottom of the expansion sleeve is fixed on the positioning seat, and the positioning seat is fixedly connected with the base through a bolt.
4. The differential case self-centering clamping device of claim 1, wherein: the upper end of the pull rod is clamped on the conical cylinder, and the lower end of the pull rod penetrates through the base to be connected with the driving piece.
5. The differential case self-centering clamping device of claim 1, wherein: and a positioning block is arranged on one side of the supporting disc, a transverse through hole is formed in the positioning block, and the positioning pin penetrates through the transverse through hole and is inserted into the workpiece positioning groove.
6. The differential case self-centering clamping device of claim 5, wherein: the positioning block is fixed with the bottom of the outer side of the supporting disc through a bolt.
7. The differential case self-centering clamping device of claim 1, wherein: the pressing mechanism comprises a screw rod which is vertically arranged and fixed with the base and a pressing plate which is penetrated through by the screw rod, and a locking nut is connected on the screw rod above the pressing plate in a threaded manner.
8. The differential case self-centering clamping device of claim 7, wherein: the long-strip through hole is formed in the pressure plate along the long axis direction of the pressure plate, and the screw penetrates through the long-strip through hole and can move in the long-strip through hole; one end of the pressing plate, which is used for pressing the workpiece, is provided with a U-shaped notch.
9. The differential case self-centering clamping device of claim 7, wherein: one end of the pressing plate is supported on a supporting block, and the supporting block is fixed on the base; the supporting shoe upper end sets up the draw-in groove, the clamp plate is placed in the draw-in groove.
10. The differential case self-centering clamping device of claim 1, wherein: the two pressing mechanisms are oppositely arranged on two sides of the supporting disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120482843.5U CN214685413U (en) | 2021-03-07 | 2021-03-07 | Automatic centering and clamping device for differential shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120482843.5U CN214685413U (en) | 2021-03-07 | 2021-03-07 | Automatic centering and clamping device for differential shell |
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| Publication Number | Publication Date |
|---|---|
| CN214685413U true CN214685413U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120482843.5U Active CN214685413U (en) | 2021-03-07 | 2021-03-07 | Automatic centering and clamping device for differential shell |
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| CN (1) | CN214685413U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084459A (en) * | 2022-01-21 | 2022-02-25 | 安徽维德电源有限公司 | A delivery goods shelves for $ integrateing power assembly system |
| CN114310718A (en) * | 2022-01-12 | 2022-04-12 | 中国第一汽车股份有限公司 | Rapid positioning and fixing device and fixing method for hole-series part |
| CN115533567A (en) * | 2022-09-29 | 2022-12-30 | 长沙中传航空传动有限公司 | Clamp for processing contour of cylindrical spiral cam surface of clutch body and processing method |
| CN116475828A (en) * | 2023-04-14 | 2023-07-25 | 江苏广大鑫盛精密智造有限公司 | Tooling quick-change device and tooling quick-change method |
-
2021
- 2021-03-07 CN CN202120482843.5U patent/CN214685413U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310718A (en) * | 2022-01-12 | 2022-04-12 | 中国第一汽车股份有限公司 | Rapid positioning and fixing device and fixing method for hole-series part |
| CN114310718B (en) * | 2022-01-12 | 2023-11-10 | 中国第一汽车股份有限公司 | Quick positioning and fixing device and method for hole parts |
| CN114084459A (en) * | 2022-01-21 | 2022-02-25 | 安徽维德电源有限公司 | A delivery goods shelves for $ integrateing power assembly system |
| CN115533567A (en) * | 2022-09-29 | 2022-12-30 | 长沙中传航空传动有限公司 | Clamp for processing contour of cylindrical spiral cam surface of clutch body and processing method |
| CN116475828A (en) * | 2023-04-14 | 2023-07-25 | 江苏广大鑫盛精密智造有限公司 | Tooling quick-change device and tooling quick-change method |
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