CN202207958U - Crank grinding fixture for crankshafts - Google Patents
Crank grinding fixture for crankshafts Download PDFInfo
- Publication number
- CN202207958U CN202207958U CN2011202994992U CN201120299499U CN202207958U CN 202207958 U CN202207958 U CN 202207958U CN 2011202994992 U CN2011202994992 U CN 2011202994992U CN 201120299499 U CN201120299499 U CN 201120299499U CN 202207958 U CN202207958 U CN 202207958U
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- CN
- China
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- clamp body
- clamping device
- pin
- fixed
- crankshaft
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Abstract
The utility model discloses a crank grinding fixture for crankshafts, which comprises a left adjusting device, a right adjusting device, a left clamping device and a right clamping device. A left fixture body is connected with a fixture base by a ball bearing, an indexing disc assembly is further arranged on the left fixture body and consists of an indexing disc, an indexing pin, a pull pin, a handle and a compression spring, a crankshaft is peripherally positioned in the left fixture body, a clamping device comprises the left clamping device and the right clamping device, and the left clamping device and the right clamping device respectively consist of a left press cover, a right press cover, a left press plate, a right press plate, a left slip and a right slip and are used for clamping and positioning the crankshaft. The crank grinding fixture is reasonable in structure and simple in operation, the trouble of multiple clamping in a crankshaft processing process is overcome, the crankshaft only needs to be clamped once on a machine tool, the crank grinding fixture is simple in operation, cost is lowered, labor intensity is reduced, work efficiency is improved, and the quality of a product and the processing precision are guaranteed.
Description
Technical field
The utility model belongs to the anchor clamps of processing usefulness, specifically relates to the crankshaft milling crutch anchor clamps.
Background technology
Multi-cylinder crankshaft milling crutch anchor clamps on this market of order all are by bipartition, use eccentric fixture and 120 ° of indexing fixtures of connecting rod neck not to be installed on the lathe at the MQ8260 crankshaft grinding machine; And carry out at operating desk separately, bent axle of every processing is all wanted clamping three times, troublesome poeration; Labour intensity is big; Work efficiency is low, and operation index≤1.2 are difficult to guarantee precision.
Summary of the invention
The purpose of the utility model is to provide the crankshaft milling crutch anchor clamps, and these anchor clamps have overcome clamping trouble repeatedly in the machining crankshafts process, on lathe, only needs a clamping; Simple to operate, reduced cost, reduced labour intensity; Improve work efficiency, guaranteed product quality and machining accuracy.
For achieving the above object, the utility model crankshaft milling crutch anchor clamps comprise left and right adjusting device and clamping device; Left and right adjusting device comprises the left and right grinding machine headstock respectively, is fixedly mounted on the left and right screw mandrel on the left and right grinding machine headstock, and an end of the left grinding machine headstock is installed on the machine tool chief axis, and the other end links to each other with clamp base; The right grinding machine headstock one end is installed on the machine tool chief axis, and the other end and right clamp body are fixed, and left and right clamping device is separately positioned on the left and right clamp body; It is characterized in that: left clamp body links to each other with clamp base through ball bearing, and there is balance weight the upper end of left clamp body through T type bolt, on the circumference of left clamp body, evenly is fixed on three collision blocks by hexagonal angle; Also be provided with the index dial assembly on the clamp body of a left side; The index dial assembly comprises index dial, index pin, pulls pin, handle and compression spring, and said index dial is fixedly mounted on the left clamp body, and the index pin activity is fixed on the right-hand member of the eccentric orfice in the index dial; And match with crankshaft flange end face locating hole; Left end is fixed with the compression spring in the eccentric orfice in index dial, on index pin, is installed with and pulls pin, and is provided with a slotted hole in the centre of handle; The front end of handle is through on the bearing that is bolted to the positioning disk right-hand member, and pulling pin is fixed in the middle slotted hole of handle through screw; Said left and right clamping device comprises left and right gland, left and right sides pressing plate, left and right sides slips respectively; Left and right sides gland is separately fixed on the left and right clamp body; Left and right pressing plate is connected in the left and right gland through pin respectively; One end of left and right gland through pin respectively activity be fixed on the left and right clamp body, the other end all is provided with the U-shaped mouth, and fixes through hold-down bolt; Saidly on clamp base, be provided with annular T-slot, on annular T-slot, be fixed with a plurality of tommyhead bolts.
In technique scheme; The utility model crankshaft milling crutch anchor clamps are owing to evenly be fixed on three collision blocks and index dial assembly by hexagonal angle on the circumference at left clamp body; On left and right clamp body, be respectively equipped with left and right clamping device, this reasonable in design has the following advantages:
1, partly unification of anchor clamps two, clamping of product reduces labor strength, improves work efficiency simultaneously;
2, mill turns calibration and need not unload workpiece, can improve work efficiency through the direct calibration in hard location on the anchor clamps;
3, product quality improves, since a clamping, the accumulated error of avoiding multiple clamping to cause;
4, the product sequence Capability index improves >=1.4.
Description of drawings
Fig. 1 is the structural representation of the utility model crankshaft milling crutch anchor clamps;
Fig. 2 is A-A structural representation of Fig. 1;
Fig. 3 is B-B structural representation view of Fig. 1;
Fig. 4 is that the C of Fig. 1 is to structural representation;
Fig. 5 is that the D of Fig. 1 is to structural representation;
Fig. 6 is the structural representation of the index dial assembly of the utility model crankshaft milling crutch anchor clamps;
Fig. 7 is the right view of Fig. 5.
The specific embodiment
Below in conjunction with accompanying drawing the utility model crankshaft milling crutch anchor clamps are done further explain.、
Visible like Fig. 1; Present embodiment crankshaft milling crutch anchor clamps comprise left and right adjusting device and clamping device, and left adjusting device comprises the left grinding machine headstock 1, is fixedly mounted on the left screw mandrel 2 on the left grinding machine headstock 1; One end of the left side grinding machine headstock 1 is installed on the machine tool chief axis; The other end links to each other with clamp base 3, and an end of the left grinding machine headstock 1 is installed on the machine tool chief axis, and the other end links to each other with clamp base 3; Rotate left screw mandrel 2 on the left adjusting device and drive left clamp body 4 through the nut on the left screw mandrel 2 and move with clamp base 3, thus adjustment bent axle left side eccentric throw.Right adjusting device and left adjusting device are basic identical; Different is not have sectional fixture base 3 in the right adjusting device; Right adjusting device comprise the right grinding machine headstock 1 ', be fixed on the right grinding machine headstock 1 ' on right screw mandrel 2 ', the right grinding machine headstock 1 ' one end is installed on the machine tool chief axis, the other end is fixed with right clamp body 5; Rotate right screw mandrel 2 on the right adjusting device ' through right screw mandrel 2 ' on nut drive right clamp body 5 and move, thereby the right eccentric throw of adjustment bent axle.Left side clamping device is arranged on the left clamp body 4; Right clamping device is arranged on the right clamp body 5; Left side clamp body 4 links to each other with clamp base 3 through ball bearing, and there is balance weight 6 upper end of left clamp body 4 through T type bolt, and 6 pairs of anchor clamps of balance weight play balanced action man-hour to adding.
Visible by Fig. 1, Fig. 2, Fig. 3; According to the desired angle of grinding crankshaft milling crutch; On the circumference of left clamp body 4, evenly be fixed on three collision blocks 7 by hexagonal angle; On clamp base 3, be provided with annular T-slot 17, on annular T-slot 17, be fixed with three tommyhead bolts 18 symmetrically, be used for compressing and locating of crank throw that anchor clamps grind.
Visible by Fig. 1, Fig. 4, Fig. 5, left clamping device comprises left gland 14, left pressing plate 15 and left slips 16, and left slips 16 is installed on the left clamp body 4, and left gland is fixed on the left clamp body 4; Left pressing plate 15 is connected in the left gland 14 through pin, and left pressing plate 15 can align the crankshaft journal center automatically, and an end of left gland 14 is fixed on the left clamp body 4 through the pin activity; The other end is provided with the U-shaped mouth, fixes through hold-down bolt, in the present embodiment; Unclamp hold-down bolt, promptly removable left gland 14
During the location, in removable hold-down bolt to the U-shaped mouth of left gland 14, fastening nut can clamp bent axle again.Right clamping device comprise right gland 14 ', right pressing plate 15 ', right slips 16 '; Right slips 16 ' be installed on the right clamp body 5, right gland 14 ' be fixed on the right clamp body 5, right pressing plate 15 ' through pin be connected right gland 14 ' in; Right pressing plate 15 ' can align the crankshaft journal center automatically; Right gland 14 ' an end be fixed on the right clamp body 5 through the pin activity, the other end is provided with the U-shaped mouth, fixes through hold-down bolt.In the present embodiment, unclamp hold-down bolt, promptly removable right gland 14 ', during the location, removable hold-down bolt to right gland 14 ' the U-shaped mouth in, fastening nut can clamp bent axle again.
Visible by Fig. 1, Fig. 6, Fig. 7, also be provided with the index dial assembly on the left clamp body 4, the index dial assembly comprises index dial 8, index pin 9, pull pin 10, handle 11 and compression spring 12; Index dial 8 is fixedly mounted on the left clamp body 4 through screw; Index pin 9 activities are fixed on the right-hand member of the eccentric orfice in the index dial 8, and match with crankshaft flange end face locating hole, and left end is fixed with compression spring 12 in the eccentric orfice in index dial 8; On index pin 9, be installed with and pull pin 10; Be provided with a slotted hole in the centre of handle 11, on the bearing 13 that is bolted to the positioning disk right-hand member, pulling pin 10 is fixed in the slotted hole in the middle of the handle 11 through screw.In the present embodiment, during operation, be fulcrum with bearing 13; Moving handle 11, through the slip in the elongated hole above the eccentric orfice in 10 slotted hole and the index dials 8 in the middle of handle 11 of pulling pin, thereby drive index pin 9 moves; Under the effect of compression spring 12; Index pin 9 stretches out or indentation in the eccentric orfice of index dial 8, index pin 9 is inserted in crankshaft flange end face locating hole or extracts, and realizes the circumferential location of bent axle in left clamp body 4.
Claims (1)
1. crankshaft milling crutch anchor clamps; Comprise left and right adjusting device and clamping device; Left and right adjusting device comprises the left and right grinding machine headstock (1,1 ') respectively, is fixedly mounted on the left and right screw mandrel (2,2 ') on the left and right grinding machine headstock (1,1 '), and an end of the left grinding machine headstock (1) is installed on the machine tool chief axis, and the other end links to each other with clamp base (3); The right grinding machine headstock (1 ') end is installed on the machine tool chief axis; The other end and right clamp body (5) are fixing, and left and right clamping device is separately positioned on the left and right clamp body (4,5), it is characterized in that: left clamp body (4) links to each other with clamp base (3) through ball bearing; There is balance weight (6) upper end of left side clamp body (4) through T type bolt; On the circumference of left clamp body (4), evenly be fixed on three collision blocks (7) by hexagonal angle, left clamp body also is provided with the index dial assembly on (4), and the index dial assembly comprises index dial (8), index pin (9), pull pin (10), handle (11) and compression spring (12); Said index dial (8) is fixedly mounted on the left clamp body (4); Index pin (9) activity is fixed on the right-hand member of the eccentric orfice in the index dial (8), and matches with crankshaft flange end face locating hole, and left end is fixed with compression spring (12) in the eccentric orfice in index dial (8); On index pin (9), be installed with pull pin (10); Centre at handle (12) is provided with a slotted hole, and the front end of handle (11) is through on the bearing (13) that is bolted to the positioning disk right-hand member, and pull pin (10) are fixed in the middle slotted hole of handle (11) through screw; Said left and right clamping device is made up of left and right sides gland (14,14 '), left and right sides pressing plate (15,15 '), left and right sides slips (16,16 ') respectively; Left and right gland (14,14 ') is separately fixed on the left and right sides clamp body (4,5); Left and right pressing plate (15,15 ') is connected in the left and right gland (14,14 ') through pin respectively; One end of left and right gland (14,14 ') through pin respectively activity be fixed on the left and right clamp body (4,5); The other end is provided with the U-shaped mouth, fixes through hold-down bolt; The said annular T-slot (17) that on clamp base (3), is provided with is fixed with a plurality of tommyhead bolts (18) on annular T-slot (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202994992U CN202207958U (en) | 2011-08-18 | 2011-08-18 | Crank grinding fixture for crankshafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202994992U CN202207958U (en) | 2011-08-18 | 2011-08-18 | Crank grinding fixture for crankshafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202207958U true CN202207958U (en) | 2012-05-02 |
Family
ID=45987514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202994992U Expired - Fee Related CN202207958U (en) | 2011-08-18 | 2011-08-18 | Crank grinding fixture for crankshafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202207958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798713A (en) * | 2016-05-11 | 2016-07-27 | 安徽白兔湖动力股份有限公司 | Index plate assembly for grinding of six-cylinder crankshaft rod journal |
-
2011
- 2011-08-18 CN CN2011202994992U patent/CN202207958U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798713A (en) * | 2016-05-11 | 2016-07-27 | 安徽白兔湖动力股份有限公司 | Index plate assembly for grinding of six-cylinder crankshaft rod journal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20150818 |
|
| EXPY | Termination of patent right or utility model |