CN204235356U - A kind of clamping device - Google Patents
A kind of clamping device Download PDFInfo
- Publication number
- CN204235356U CN204235356U CN201420618264.9U CN201420618264U CN204235356U CN 204235356 U CN204235356 U CN 204235356U CN 201420618264 U CN201420618264 U CN 201420618264U CN 204235356 U CN204235356 U CN 204235356U
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- China
- Prior art keywords
- notch
- plate
- upper bed
- holes
- bottom base
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Abstract
The utility model discloses a kind of clamping device, it is characterized in that, comprise the lower bottom base of fixture, upper bed-plate, backing plate, pressing plate, adjusting nut, locking nut; Lower bottom base upper end is provided with the first notch and linear notch; Upper bed-plate lower end is provided with the second notch and linear protrusion; On lower bottom base, four the first threaded rods are respectively from top to bottom successively through four the first through holes and other four adjusting nut assembly connections on four the second through holes, upper bed-plate on four adjusting nuts, backing plate; A left side, upper bed-plate upper end is provided with two back-up blocks, two support cylinder and two cushion blocks; Described support cylinder top is provided with the first arc-shaped notch; Compress cylinder bottom and be provided with the second arc-shaped notch; Second installing ring is arranged on two the first installing rings centres and forms turning joint by bearing pin; Second threaded rod is from top to bottom successively through first locking nut, U-type groove mouth and second locking nut assembly connection.This fixture has good stability, and workpiece deformation is little, and positioning datum is unified, handled easily, efficiency high.
Description
Technical field
The utility model relates to a kind of clamping device, particularly relates to the clamping device that the endoporus grinding of a kind of automobile axle shaft two ends uses.
Background technology
The two ends of automobile axle shaft have centre bore to need grinding, two when carrying out lathe process to automobile axle shaft, general way adopts the direct clamping disk(-sc) portion of scroll chuck, and then hold out against the other end with thimble, there is following defect in this mode: push up too tight as top, be heated during work pieces process and extend to be obstructed and also will cause flexural deformation, as top top get Tai Song, then stability is poor again, and half shaft centre line and thimble cannot be ensured on the same line, cause machining benchmark to be forbidden, percent defective is higher; Gripping is inconvenient, affects operating efficiency.
Utility model content
Because the above-mentioned defect of prior art, when technical problem to be solved in the utility model is to provide a kind of automobile axle shaft two ends endoporus attrition process, good stability, workpiece deformation is little, and positioning datum is unified, handled easily, efficiency high clamping device.
For achieving the above object, the utility model provides a kind of clamping device, it is characterized in that, comprises the lower bottom base of fixture, upper bed-plate, backing plate, pressing plate, adjusting nut, locking nut; Be fixed on bottom described lower bottom base on platen, described lower bottom base upper end is provided with the first notch and linear notch; The first described notch internal fixtion is connected with four the first threaded rods; Described upper bed-plate lower end is provided with the second notch and linear protrusion; The second described notch is provided with four the first through holes; Described linear protrusion and linear notch linear fit; Described backing plate is provided with four the second through holes; On described lower bottom base, four the first threaded rods respectively from top to bottom successively through four the first through holes and other four adjusting nut assembly connections on four the second through holes, upper bed-plate on four adjusting nuts, backing plate together; The described left and right sides, upper bed-plate upper end is also arranged with two back-up blocks, two support cylinder and two cushion blocks in parallel; Described back-up block top is provided with two the first parallel installing rings; Described support cylinder top is provided with the first arc-shaped notch of clamping automobile axle shaft bottom; Described cushion block Upper vertical direction is provided with the second threaded rod; The left and right sides of described pressing plate bottom face is arranged with two the second installing rings, two compression cylinders and two U-type groove mouths in parallel; Described compression cylinder bottom is provided with second arc-shaped notch on clamping automobile axle shaft top; The second described installing ring is arranged on two the first installing rings centres and forms turning joint by bearing pin assembly connection; The second described threaded rod from top to bottom successively through first locking nut, U-type groove mouth and second locking nut assembly connection together.
Further, be also provided with the 3rd notch in the middle part of described pressing plate, it is as observation panel, conveniently observes constantly the clamped condition of automobile axle shaft when fixture uses, and also reduces pressing plate overall weight simultaneously, cost-saving.
Further, on described pressing plate, the left and right sides of the 3rd notch is provided with handle, handled easily.
Compared to existing technology, the beneficial effects of the utility model are: the utility model structure is simple, easy to operate, it adopts a pressing plate that two positions on automobile axle shaft just can be made to be compressed simultaneously, can prevent vibration of workpiece and occur absent-mindedness, good stability and to realize benchmark same, clamped position is not at both sides top end, be out of shape little during work pieces process, thus reduce the position error of central shaft on automobile axle shaft, improve crudy and production efficiency.
Accompanying drawing explanation
Fig. 1 is the automobile axle shaft structural representation of the utility model-a kind of clamping device.
Fig. 2 is the perspective view of the utility model-a kind of clamping device.
Fig. 3 is the rearview of the utility model-a kind of clamping device.
Fig. 4 is the lower bottom base structural representation of the utility model-a kind of clamping device.
Fig. 5 is the upper bed-plate structural representation of the utility model-a kind of clamping device.
Fig. 6 is the pressure plate structure schematic diagram of the utility model-a kind of clamping device.
Fig. 7 is the backing structure schematic diagram of the utility model-a kind of clamping device.
Fig. 8 is the utility model-stereogram of a kind of clamping device on lathe during clamped condition.
Fig. 9 is that the utility model-master of a kind of clamping device on lathe during clamped condition looks body figure.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figures 1 to 9, a kind of clamping device, comprises the lower bottom base 8 of fixture, upper bed-plate 1, backing plate 5, pressing plate 2, adjusting nut 7, locking nut 3; Be fixed on platen bottom described lower bottom base 8, described lower bottom base 8 upper end is provided with the first notch 81 and linear notch 82; Described linear notch 82 direction is parallel with machine tool chief axis; The first described notch 81 internal fixtion is connected with four the first threaded rods 6; Described upper bed-plate 1 lower end is provided with the second notch 16 and linear protrusion 17; The second described notch 16 is provided with four the first through holes 15; Described linear protrusion 17 and linear notch 82 linear fit; Described backing plate 5 is provided with four the second through holes 51; On described lower bottom base 8, four the first threaded rods 6 are respectively from top to bottom successively through four the first through holes 15 on four the second through holes 51, upper bed-plate 1 on four adjusting nuts 7, backing plate 5 and adjusting nut 7 assembly connection is together in addition; The described left and right sides, upper bed-plate 1 upper end is also arranged with two back-up blocks, 11, two support cylinder (12) and two cushion blocks 13 in parallel; Described back-up block 11 top is provided with two the first parallel installing rings 111; Described support cylinder 12 top is provided with the first arc-shaped notch 121 of clamping automobile axle shaft 10 bottom; Described cushion block 13 Upper vertical direction is provided with the second threaded rod 14; The left and right sides of described pressing plate 2 bottom face is arranged with two the second installing rings, 22, two compression cylinders 21 and two U-type groove mouths 23 in parallel; Described compression cylinder 21 bottom is provided with second arc-shaped notch 211 on clamping automobile axle shaft 10 top; Described the second installing ring (22) is arranged on two the first installing rings 111 centres and forms turning joint by bearing pin 4 assembly connection; The second described threaded rod 14 from top to bottom successively through first locking nut 3, U-type groove mouth 23 and second locking nut 3 assembly connection together; The 3rd notch 24 is also provided with in the middle part of described pressing plate 2; On described pressing plate 2, the left and right sides of the 3rd notch 24 is provided with handle 25.
As shown in Figures 1 to 9, be fixed on platen bottom lower bottom base 8 of the present utility model, due to four the first threaded rods 6 on lower bottom base 8 respectively from top to bottom successively through four the first through holes 15 and other four adjusting nut 7 assembly connections on four the second through holes 51, upper bed-plate 1 on four adjusting nuts 7, backing plate 5 together, regulate four adjusting nuts 7 of lower end, under can making upper bed-plate 1 in the vertical direction, the direction of motion realizes centre-height up-down adjustment; After regulating position, lock upper bed-plate 1 by four adjusting nuts 7 turn downwards of upper end again to prevent from loosening, due in process, vary in size and the reason such as finished size deviation is large owing to shaking loosening, workpiece, all need to carry out adjustment correction to the first arc-shaped notch 121 determined positioning datum degree centre-height of two on upper bed-plate 1, thus ensure that machining spindle center is consistent with the coincidence that fixture locates axle center.
As Fig. 1 to Fig. 9, the utility model is after handle adjusts centre-height, clamping work pieces operation is as follows: before operation, two the second threaded rod 14 lower ends on two cushion block 13 are all respectively fitted with a locking nut 3, at this moment hand-held handle 25, two the second installing rings 22 on such pressing plate 2 rotate and are greater than 90 degree afterwards with regard to having reserved operating space to the installation of automobile axle shaft 10 under twisting force and by hinge arrangement, now automobile axle shaft 10 are placed in first arc-shaped notch 121 on two support cylinder 12 tops; It is firmly made to rotate pressing plate 2 by rotary hinge structure to pressing plate 2 upper handle 25 again, second arc-shaped notch 211 of such compression cylinder 21 bottom will with automobile axle shaft 10 upper contact, now threaded rod 14 also can pass U-type groove mouth 23 simultaneously, then two other locking nut 3 is assembled to the upper end of two threaded rods 14, and two locking nuts 3 rotating upper end move downward and automobile axle shaft 10 are locked, after upper end locking, two, lower end locking nut 3 rotates and moves upward and holds out against bottom pressing plate again, can prevent from adding man-hour pressing plate like this and 2 is shaken and loosen; And finally make two the second arc-shaped notch 211 and two the first arc-shaped notch 121 that the top and the bottom at automobile axle shaft 10 two ends are all compressed, therefore operation is few for non-cutting time, good stability, is out of shape little; Because two the first arc-shaped notch 121 centers on the base 1 of fixture are coaxial with the alignment of shafts of lathe, and two the first arc-shaped notch 121 maintain static, so when automobile axle shaft clamps, the center line of the two ends endoporus on its automobile axle shaft 10 is all consistent with machine tool chief axis, therefore it can guarantee the accuracy of its machining benchmark.
As Fig. 1 to Fig. 9, by linear protrusion 17 and linear notch 82 linear fit between upper bed-plate 1 of the present utility model and lower bottom base 8, can limit the direction of motion of upper bed-plate 1 on lower bottom base 8 by linear fit like this can not can only rotate for moving along major axes orientation; Because two support cylinder 12 tops of upper bed-plate 1 are positioning datums as automobile axle shaft 10 owing to clamping two the first arc-shaped notch 121 of automobile axle shaft 10 bottom; Although on first threaded rod and upper bed-plate 1, the first through hole 15 exists gap but can not rotate owing to limiting lower bottom base 8 under linear fit effect on lower bottom base 8, so can be ensured it and be in parastate all the time in main shaft.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technical staff in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (3)
1. a clamping device, is characterized in that, comprises the lower bottom base (8) of fixture, upper bed-plate (1), backing plate (5), pressing plate (2), adjusting nut (7), locking nut (3); Described lower bottom base (8) bottom is fixed on platen, and described lower bottom base (8) upper end is provided with the first notch (81) and linear notch (82); Described the first notch (81) internal fixtion is connected with four the first threaded rods (6); Described upper bed-plate (1) lower end is provided with the second notch (16) and linear protrusion (17); Described the second notch (16) is provided with four the first through holes (15); Described linear protrusion (17) and linear notch (82) linear fit; Described backing plate (5) is provided with four the second through holes (51); Upper four the first threaded rods (6) of described lower bottom base (8) respectively from top to bottom successively through four adjusting nuts (7), upper four the second through holes (51) of backing plate (5), upper four the first through holes (15) of upper bed-plate (1) and other four adjusting nut (7) assembly connections together; Described upper bed-plate (1) left and right sides, upper end is also arranged with two back-up blocks (11), two support cylinder (12) and two cushion blocks (13) in parallel; Described back-up block (11) top is provided with two parallel the first installing rings (111); Described support cylinder (12) top is provided with first arc-shaped notch (121) of clamping automobile axle shaft (10) bottom; Described cushion block (13) Upper vertical direction is provided with the second threaded rod (14); The left and right sides of described pressing plate (2) bottom face is arranged with two the second installing rings (22), two compression cylinders (21) and two U-type groove mouths (23) in parallel; Described compression cylinder (21) bottom is provided with second arc-shaped notch (211) on clamping automobile axle shaft (10) top; Described the second installing ring (22) is arranged in the middle of two the first installing rings (111) also by bearing pin (4) assembly connection composition turning joint; Described the second threaded rod (14) from top to bottom successively through first locking nut (3), U-type groove mouth (23) and second locking nut (3) assembly connection together.
2. a kind of clamping device as claimed in claim 1, is characterized in that: described pressing plate (2) middle part is also provided with the 3rd notch (24).
3. a kind of clamping device as claimed in claim 2, is characterized in that: the left and right sides of upper 3rd notch (24) of described pressing plate (2) is provided with handle (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420618264.9U CN204235356U (en) | 2014-10-24 | 2014-10-24 | A kind of clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420618264.9U CN204235356U (en) | 2014-10-24 | 2014-10-24 | A kind of clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204235356U true CN204235356U (en) | 2015-04-01 |
Family
ID=52764908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420618264.9U Expired - Fee Related CN204235356U (en) | 2014-10-24 | 2014-10-24 | A kind of clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204235356U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105096729A (en) * | 2015-09-18 | 2015-11-25 | 重庆理工大学 | Installing clamp test table used for clutch release yoke |
| CN107825160A (en) * | 2017-12-06 | 2018-03-23 | 上海复合材料科技有限公司 | Adjustable machine processing and loading clamp servicing unit |
| CN108581572A (en) * | 2018-06-29 | 2018-09-28 | 安徽华星消防设备(集团)有限公司 | Fire hydrant deck machines clamping positioning mechanism |
-
2014
- 2014-10-24 CN CN201420618264.9U patent/CN204235356U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105096729A (en) * | 2015-09-18 | 2015-11-25 | 重庆理工大学 | Installing clamp test table used for clutch release yoke |
| CN107825160A (en) * | 2017-12-06 | 2018-03-23 | 上海复合材料科技有限公司 | Adjustable machine processing and loading clamp servicing unit |
| CN108581572A (en) * | 2018-06-29 | 2018-09-28 | 安徽华星消防设备(集团)有限公司 | Fire hydrant deck machines clamping positioning mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 401420 Chongqing city Qijiang District South Street Jinfu Road No. 3 Patentee after: Chongqing Jingjiang automobile axle Limited by Share Ltd Address before: 401420 Qijiang City Industrial Park, A District, Chongqing Patentee before: Chongqing Jingjiang Automobile Axle Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20201024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |