CN114589324A

CN114589324A - Clamping jaw with correcting function for joint fork machining

Info

Publication number: CN114589324A
Application number: CN202210317918.3A
Authority: CN
Inventors: 李宣明
Original assignee: Chongqing Mingda Tianchen Auto Parts Manufacturing Co ltd
Current assignee: Chongqing Mingda Tianchen Auto Parts Manufacturing Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-06-07
Anticipated expiration: 2042-03-25
Also published as: CN114589324B

Abstract

The invention discloses a clamping jaw with a correcting function for joint fork machining, and relates to the technical field of joint fork machining. If the small bevel gear rotates clockwise, the lug pin rebounds, the small bevel gear cannot be limited by the lug pin, the small bevel gear can normally rotate clockwise, if the small bevel gear rotates anticlockwise, the lug pin rebounds, rotation of the small bevel gear is limited, the small bevel gear rotates clockwise to be clamped, the small bevel gear rotates anticlockwise to be loosened, the lug pin is responsible for preventing the small bevel gear from rotating anticlockwise after being clamped, the locking effect is achieved, when the lug pin is loosened, the lug pin is pulled out to be separated from the groove of the small bevel gear, the lug pin is rotated, the brim portion of the lug pin is lapped outside the lock sleeve at the moment, the small bevel gear can normally rotate anticlockwise, and the clamping jaw has the locking structure.

Description

Clamping jaw with correcting function for joint fork machining

Technical Field

The invention relates to the technical field of joint fork processing, in particular to a clamping jaw with a correcting function for joint fork processing.

Background

The joint fork is a part for realizing variable-angle power transmission, is used for changing the position of a transmission axis direction, is a joint part of a universal transmission device of an automobile driving system, needs to use a clamping jaw during the processing of the joint fork, and is a machine tool accessory for clamping and positioning a workpiece by utilizing the radial movement of four movable jaws uniformly distributed on a chuck body, wherein the clamping jaw consists of the chuck body, the movable jaws and a jaw driving mechanism.

Clamping jaw in the market presss from both sides tight back, can't carry out the auto-lock and dies, in the use, can cause not hard up, and can't finely tune the position of every group activity jack catch, cause unable correction product position to unable centre gripping multiple material's product, if product material hardness is relatively poor, then can cause the clamp to decrease, when centre gripping thin wall class product, cause deformation damage easily, long-time mechanical motion can cause the serious shortcoming of wearing and tearing because lubricated not enough.

Disclosure of Invention

The invention aims to provide a clamping jaw with a correcting function for processing a yoke, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a festival fork processing is with centre gripping jack catch that has correction function, includes chuck body and jack catch subassembly, the outside front end of chuck body is fixed with the auto-lock subassembly, and the auto-lock subassembly includes lock sleeve, rod cover, spring and lug round pin, the inside of lock sleeve is fixed with the rod cover, and the outside of rod cover is provided with the spring, the lug round pin is installed to the inner wall of rod cover, the inner wall of auto-lock subassembly is provided with little bevel gear, and the externally mounted of little bevel gear has big bevel gear, the inner wall of big bevel gear is provided with well axle sleeve, the jack catch subassembly is installed in outside one side of big bevel gear, the jack catch subassembly includes the main claw body, little bearing, interior hexagon bolt and guide arm, and the inside of the main claw body is fixed with the little bearing, the outside of little bearing is provided with interior hexagon bolt, the inner wall of the main claw body is fixed with the guide arm.

Furthermore, the rod sleeve is elastically connected with the lug pin through a spring, the lower surface of the lug pin is tightly attached to the upper surface of the small bevel gear, and the circle center of the small bevel gear coincides with the circle center of the lock sleeve.

Further, the inner wall of jack catch subassembly is provided with little centre gripping subassembly, and little centre gripping subassembly includes vice claw body, axle stick, ball, triangular clamp plate, high-carbon steel preforming, rubber preforming and ceramic preforming, the inner wall of vice claw body is fixed with the axle stick, and the externally mounted of axle stick has the ball, the outside of ball is provided with triangular clamp plate, and the top of triangular clamp plate installs the high-carbon steel preforming, one side of triangular clamp plate is provided with the rubber preforming, and the ceramic preforming is installed to the opposite side of triangular clamp plate.

Furthermore, four guide rods are symmetrically arranged along the center of the main claw body, the guide rods are connected with the auxiliary claw body in a sliding mode, and the auxiliary claw body is in threaded connection with the hexagon socket head cap screw.

Furthermore, the triangular pressing plate is rotatably connected with the shaft rod through balls, the balls are arranged along the circumference of the circle center of the shaft rod, and the central axis of the triangular pressing plate coincides with the central axis of the high-carbon steel pressing plate.

Furthermore, the inner wall of the middle shaft cylinder is provided with an inner supporting disc body, a large bearing is fixed inside the inner supporting disc body, a bevel gear shaft is arranged outside the large bearing, a square hole bevel gear is installed on one side of the bevel gear shaft, a bevel gear lead screw is arranged on the other side of the square hole bevel gear, and an extending clamping claw is installed outside the bevel gear lead screw.

Furthermore, the bevel gear shaft is rotatably connected with the inner support disc body through a large bearing, the bevel gear shaft is meshed with the square hole bevel gear, and the bevel gear shaft is meshed with the bevel gear screw rod.

Furthermore, the bevel screw rod is in threaded connection with the extension clamping jaws, the extension clamping jaws are arranged along the circle center circumference of the inner support disc body, and the extension clamping jaws are in sliding connection with the inner support disc body.

Further, the outside one side of interior support disk body is provided with the oil spout subassembly, and the oil spout subassembly includes liquid storage pot, shower nozzle, screw rod, bearing three and piston, outside one side of liquid storage pot is provided with the shower nozzle, and the outside opposite side of liquid storage pot installs the screw rod, the outside of screw rod is provided with bearing three, and the external fixation of bearing three has the piston.

Furthermore, the screw rod is rotatably connected with the piston through a third bearing, the screw rod is in threaded connection with the liquid storage tank, and the circle center of the liquid storage tank is coincided with the circle center of the spray head.

The invention provides a clamping jaw with a correcting function for processing a joint fork, which has the following beneficial effects: the clamping jaw is provided with a locking structure, can be locked after being clamped and prevents clamping from loosening, the clamping jaw is provided with a clamping fine adjustment structure, the position clamped by a product can be finely adjusted according to specific working conditions so as to achieve the effect of clamping correction, the clamping jaw is provided with a plurality of product clamping structures, different pressing sheets can be switched according to the material of the product so as to be suitable for different products, the clamping jaw is provided with a product inner hole supporting structure, the integral rigidity of the product can be enhanced, the thin-wall product is prevented from being clamped and damaged, the clamping jaw is provided with a lubricating structure, the abrasion in use can be slowed down, and the service life is prolonged;

1. the invention sets up a lock sleeve, a rod sleeve, a spring, a lug pin and a small bevel gear, wherein the convex part of the lug pin is embedded in the groove of the small bevel gear, if the small bevel gear rotates clockwise, the lug pin can rebound, the small bevel gear can not be limited by the lug pin, the small bevel gear can normally rotate clockwise, if the small bevel gear rotates anticlockwise, the lug pin can not rebound, the rotation of the small bevel gear is limited, the small bevel gear rotates clockwise as clamping, the small bevel gear rotates anticlockwise as loosening, the lug pin is responsible for preventing the small bevel gear from rotating anticlockwise after clamping, playing a locking effect, preventing the clamping from loosening, when loosening, pulling up the lug pin to separate from the groove of the small bevel gear, and rotating the lug pin, at the moment, the brim part of the lug pin is lapped outside the lock sleeve, the small bevel gear can normally rotate anticlockwise, so that the clamping jaw has a locking structure, can lock after the centre gripping, prevent that the clamping is not hard up.

2. According to the clamping jaw, the main jaw body, the small bearings, the hexagon socket head cap screws, the guide rod and the auxiliary jaw body, when the main jaw body clamps a product, the auxiliary jaw body can be in contact with the product, the hexagon socket head cap screws to enable the auxiliary jaw body to move along the inner wall of the main jaw body, meanwhile, the auxiliary jaw body slides along the guide rod to assist the auxiliary jaw body to move accurately, the position of the clamped product can slightly move along with the movement of the auxiliary jaw body, the positions of the four groups of auxiliary jaw bodies are adjusted respectively, and therefore the position of the product is corrected, the clamping jaw is provided with a clamping fine adjustment structure, and the position clamped by the product can be finely adjusted according to specific working conditions, so that the clamping correction effect is achieved.

3. According to the clamping claw, through the arrangement of the shaft rod, the balls, the triangular pressing plate, the high-carbon steel pressing sheet, the rubber pressing sheet and the ceramic pressing sheet, the triangular pressing plate can rotate along the shaft rod through the balls, three surfaces are arranged on the triangular pressing plate and are respectively provided with the high-carbon steel pressing sheet, the rubber pressing sheet and the ceramic pressing sheet, the high-carbon steel pressing sheet is responsible for clamping common metal products, the rubber pressing sheet is responsible for clamping products with poor hardness, the ceramic pressing sheet is responsible for clamping products with high hardness, different pressing sheets can be replaced randomly by rotating the triangular pressing plate, so that the clamping claw has various product clamping structures, different pressing sheets can be switched according to the material of the products, and the clamping claw is suitable for different products.

4. According to the invention, through the arrangement of the inner support disc body, the large bearing, the bevel gear shaft, the square hole bevel gear, the bevel lead screw and the extension clamping jaws, the square hole bevel gear is rotated by using a four-corner tool, two ends of the bevel gear shaft are respectively meshed with the square hole bevel gear and the bevel lead screw, the bevel gear shaft and the bevel lead screw are linked to rotate along with the rotation of the square hole bevel gear, the extension clamping jaws slide along the inner support disc body along with the bevel lead screw, and a plurality of groups of extension clamping jaws extend outwards at the same time, so that an inner hole of a product can be supported, the integral rigidity of the product is improved, the clamping jaws have a product inner hole supporting structure, the integral rigidity of the product can be enhanced, and the thin-wall products are prevented from being damaged by clamping.

5. According to the invention, through the arrangement of the liquid storage tank, the spray head, the screw rod, the bearing III and the piston, the cover plate of the liquid storage tank is opened to add lubricating oil, the screw rod is screwed to push the piston to extrude the lubricating oil in the liquid storage tank, and then the lubricating oil is sprayed out from the spray head to lubricate the bevel gear shaft and the bevel gear lead screw, so that the abrasion is effectively reduced, the clamping jaw has a lubricating structure, the abrasion in use can be reduced, and the service life is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of a clamping jaw with a correcting function for processing a yoke according to the invention in a front view;

FIG. 2 is a schematic sectional view of a clamping jaw with a correcting function for processing a yoke according to the present invention;

FIG. 3 is a schematic cross-sectional view of a chuck body of a clamping jaw with a correcting function for processing a yoke according to the present invention;

FIG. 4 is an enlarged schematic view of a clamping jaw with a correcting function for processing a yoke according to the present invention at the position A in FIG. 1;

FIG. 5 is a schematic view of a cross-sectional enlarged structure of a jaw assembly of a clamping jaw with a correcting function for joint yoke processing according to the present invention;

FIG. 6 is a schematic view of a cross-sectional enlarged structure of a micro clamping assembly of a clamping jaw with a correcting function for processing a yoke according to the present invention;

fig. 7 is an enlarged structural schematic diagram of a clamping jaw with a correcting function for yoke processing in fig. 3B.

In the figure: 1. a chuck body; 2. a self-locking assembly; 201. a lock sleeve; 202. a rod sleeve; 203. a spring; 204. a bump pin; 3. a bevel pinion; 4. a large bevel gear; 5. a middle shaft cylinder; 6. a jaw assembly; 601. a main jaw body; 602. a small bearing; 603. a hexagon socket head cap screw; 604. a guide bar; 7. a micro clamping assembly; 701. an auxiliary claw body; 702. a mandrel bar; 703. a ball bearing; 704. a triangular pressing plate; 705. tabletting high-carbon steel; 706. pressing rubber sheets; 707. ceramic tabletting; 8. an inner support tray body; 9. a large bearing; 10. a bevel gear shaft; 11. a square-hole bevel gear; 12. a bevel-tooth lead screw; 13. an extending jaw; 14. an oil injection assembly; 1401. a liquid storage tank; 1402. a spray head; 1403. a screw; 1404. a third bearing; 1405. a piston.

Detailed Description

Referring to fig. 1 and 4, the present invention provides a technical solution: a clamping jaw with a correcting function for processing a yoke comprises a chuck body 1 and a jaw assembly 6, wherein a self-locking assembly 2 is fixed at the front end of the outer part of the chuck body 1, the self-locking assembly 2 comprises a lock sleeve 201, a rod sleeve 202, a spring 203 and a bump pin 204, the rod sleeve 202 is fixed in the lock sleeve 201, the spring 203 is arranged on the outer part of the rod sleeve 202, the bump pin 204 is installed on the inner wall of the rod sleeve 202, the rod sleeve 202 is elastically connected with the bump pin 204 through the spring 203, the lower surface of the bump pin 204 is tightly attached to the upper surface of a small bevel gear 3, the circle center of the small bevel gear 3 is coincided with the circle center of the lock sleeve 201, a small bevel gear 3 is arranged on the inner wall of the self-locking assembly 2, a large bevel gear 4 is installed on the outer part of the small bevel gear 3, and a middle shaft barrel 5 is arranged on the inner wall of the large bevel gear 4;

the operation is as follows, the convex part of the convex block pin 204 is embedded in the groove of the small bevel gear 3, if the small bevel gear 3 rotates clockwise, the convex block pin 204 will rebound, the small bevel gear 3 will not be limited by the convex block pin 204, the small bevel gear 3 can rotate clockwise normally, if the small bevel gear 3 rotates anticlockwise, the convex block pin 204 will not rebound, the rotation of the small bevel gear 3 is limited, the small bevel gear 3 rotates clockwise as clamping, the small bevel gear 3 rotates anticlockwise as unclamping, the convex block pin 204 is responsible for preventing the small bevel gear 3 from rotating anticlockwise after clamping, the locking effect is achieved, the clamping is prevented from loosening, when unclamping, the convex block pin 204 is pulled out of the groove of the small bevel gear 3, and the convex block pin 204 is rotated, at this time, the brim part of the convex block pin 204 is lapped outside the lock sleeve 201, the small bevel gear 3 can be rotated normally, so that the clamping jaw has the locking structure, the locking can be carried out after clamping, so that clamping looseness is prevented;

referring to fig. 2, 5 and 6, the jaw assembly 6 is installed at one side of the outside of the large bevel gear 4, the jaw assembly 6 includes a main jaw body 601, a small bearing 602, a hexagon socket head cap screw 603 and a guide rod 604, the small bearing 602 is fixed inside the main jaw body 601, the hexagon socket head cap screw 603 is installed outside the small bearing 602, the guide rod 604 is fixed on the inner wall of the main jaw body 601, the micro clamping assembly 7 is installed on the inner wall of the jaw assembly 6, the micro clamping assembly 7 includes a sub jaw body 701, a shaft rod 702, balls 703, a triangular pressing plate 704, a high carbon steel pressing plate 705, a rubber pressing plate 706 and a ceramic pressing plate 707, the shaft rod 702 is fixed on the inner wall of the sub jaw body 701, the balls are installed outside the shaft rod 702, the guide rods 604 are symmetrically installed four along the center position of the main jaw body 601, the guide rods 604 are slidably connected with the sub jaw body 701, the sub jaw body 701 is threadedly connected with the hexagon socket head cap screw 603, the balls 703 are installed outside the triangular pressing plate 704, a high-carbon steel pressing sheet 705 is arranged above the triangular pressing plate 704, a rubber pressing sheet 706 is arranged on one side of the triangular pressing plate 704, a ceramic pressing sheet 707 is arranged on the other side of the triangular pressing plate 704, the triangular pressing plate 704 is rotatably connected with the shaft rod 702 through balls 703, the balls 703 are arranged along the circumference of the circle center of the shaft rod 702, and the central axis of the triangular pressing plate 704 is coincident with the central axis of the high-carbon steel pressing sheet 705;

the specific operation is as follows, when the main claw body 601 clamps a product, the auxiliary claw body 701 can contact with the product at the same time, the hexagon socket head cap screw 603 is screwed to enable the auxiliary claw body 701 to move along the inner wall of the main claw body 601, meanwhile, the auxiliary claw body 701 slides along the guide rod 604 to assist the accurate movement of the auxiliary claw body, along with the movement of the auxiliary claw body 701, the position of the clamped product can slightly move, the positions of the four groups of auxiliary claw bodies 701 are respectively adjusted, so as to correct the position of the product, the clamping claw is provided with a clamping fine adjustment structure, the position clamped by the product can be finely adjusted according to specific working conditions, so as to achieve the effect of clamping correction, the triangular pressing plate 704 can rotate along the shaft rod 702 through the ball 703, the triangular pressing plate 704 is provided with three surfaces, and respectively provided with a high-carbon steel pressing plate, a rubber pressing plate 706 and a ceramic 707, the high-carbon steel pressing plate 705 is responsible for clamping common metal products, and the rubber pressing plate 706 is responsible for clamping products with poor hardness, the ceramic pressing sheet 707 is responsible for clamping a product with higher hardness, and different pressing sheets can be replaced at will by rotating the triangular pressing plate 704, so that the clamping jaw has a plurality of product clamping structures, and different pressing sheets can be switched according to the material of the product, so that the clamping jaw is suitable for different products;

referring to fig. 3 and 7, an inner support tray 8 is disposed on an inner wall of a middle shaft cylinder 5, a large bearing 9 is fixed inside the inner support tray 8, a bevel gear shaft 10 is disposed outside the large bearing 9, a square bevel gear 11 is disposed on one side of the bevel gear shaft 10, a bevel screw 12 is disposed on the other side of the square bevel gear 11, an extension claw 13 is disposed outside the bevel screw 12, the bevel screw 10 is rotatably connected to the inner support tray 8 through the large bearing 9, the bevel screw 10 is engaged with the square bevel gear 11, the bevel screw 10 is engaged with the bevel screw 12, the bevel screw 12 is in threaded connection with the extension claw 13, the extension claw 13 is circumferentially arranged along a circle center of the inner support tray 8, the extension claw 13 is slidably connected to the inner support tray 8, an oil injection assembly 14 is disposed on one side of an outer portion of the inner support tray 8, and the oil injection assembly 14 includes a liquid storage tank 1401, an oil storage tank 13, and a water tank 13, The spray head 1402, the screw 1403, the three bearings 1404 and the piston 1405 are arranged on one side of the outside of the liquid storage tank 1401, the screw 1403 is installed on the other side of the outside of the liquid storage tank 1401, the three bearings 1404 are arranged on the outside of the screw 1403, the piston 1405 is fixed on the outside of the three bearings 1404, the screw 1403 is rotatably connected with the piston 1405 through the three bearings 1404, the screw 1403 is in threaded connection with the liquid storage tank 1401, and the circle center of the liquid storage tank 1401 coincides with the circle center of the spray head 1402;

the operation is as follows, a square hole bevel gear 11 is rotated by using a four-corner tool, two ends of a bevel gear shaft 10 are respectively meshed with the square hole bevel gear 11 and a bevel lead screw 12, the bevel gear shaft 10 and the bevel lead screw 12 are linked to rotate along with the rotation of the square hole bevel gear 11, then the bevel lead screw 12 enables extension claws 13 to slide along an inner support disc body 8, a plurality of groups of extension claws 13 extend outwards simultaneously, product inner holes can be supported, the integral rigidity of a product is improved, the clamping claws are enabled to have a product inner hole supporting structure, the integral rigidity of the product can be enhanced, thin-wall products are prevented from being clamped and damaged, a cover plate of a liquid storage tank 1401 is opened to add lubricating oil, a screw 1403 is screwed to push a piston 1405 to extrude the lubricating oil in the liquid storage tank 1401, then the lubricating oil is sprayed out from a spray head 1402 to lubricate the bevel gear shaft 10 and the bevel lead screw 12, the abrasion is effectively reduced, the clamping claws are enabled to have a lubricating structure, and the abrasion during use can be reduced, thereby prolonging the service life.

To sum up, when the clamping jaw with the correcting function is used for processing a pitch fork, a product is firstly placed between four groups of main jaw bodies 601 in the middle, the convex part of the convex block pin 204 is embedded in the groove of the small bevel gear 3, if the small bevel gear 3 rotates clockwise, the convex block pin 204 rebounds, the small bevel gear 3 is not limited by the convex block pin 204, the small bevel gear 3 can normally rotate clockwise, if the small bevel gear 3 rotates anticlockwise, the convex block pin 204 does not rebound, the rotation of the small bevel gear 3 is limited, the small bevel gear 3 rotates clockwise to be clamped, the small bevel gear 3 rotates anticlockwise to be loosened, the convex block pin 204 is responsible for preventing the small bevel gear 3 from rotating anticlockwise after being clamped, the locking effect is achieved, the clamping is prevented from loosening, the convex block pin 204 is pulled out of the groove of the small bevel gear 3, the convex block pin 204 is rotated, and the cap part of the convex block pin 204 is lapped outside the lock sleeve 201, the small bevel gear 3 can be normally rotated anticlockwise, the small bevel gear 3 is rotated clockwise, the small bevel gear 3 is linked with the large bevel gear 4 to rotate, the large bevel gear 4 is meshed with the main claw body 601, the four groups of main claw bodies 601 simultaneously move in the middle to clamp a product, when the main claw body 601 clamps the product, the auxiliary claw body 701 simultaneously contacts the product, the hexagon socket head cap screw 603 is screwed to enable the auxiliary claw body 701 to move along the inner wall of the main claw body 601, the auxiliary claw body 701 slides along the guide rod 604 to assist the accurate movement of the auxiliary claw body, the position of the clamped product slightly moves along with the movement of the auxiliary claw body 701, the positions of the four groups of auxiliary claw bodies 701 are respectively adjusted, so that the position of the product is corrected, the triangular pressing plate 704 can rotate along the shaft rod 702 through the balls 703, three surfaces are arranged on the triangular pressing plate 704, and high-carbon steel pressing sheets 705, rubber pressing sheets 706 and ceramic pressing sheets 707 are respectively arranged on the triangular pressing plate 704, and the high-carbon steel pressing sheets are used for clamping common metal products, the rubber sheeting 706 is responsible for clamping products with poor hardness, the ceramic sheeting 707 is responsible for clamping products with high hardness, different sheeting can be replaced at will by rotating the triangular sheeting 704, a square-hole bevel gear 11 is rotated by using a four-corner tool, two ends of a bevel gear shaft 10 are respectively meshed with the square-hole bevel gear 11 and a bevel-tooth screw rod 12, the bevel-tooth screw rod 10 and the bevel-tooth screw rod 12 are linked to rotate along with the rotation of the square-hole bevel gear 11, the extension claws 13 slide along the inner support disc body 8 along with the bevel-tooth screw rod 12, a plurality of groups of extension claws 13 extend outwards at the same time, inner holes of the products can be supported, the integral rigidity of the products is improved, a cover plate of the liquid storage tank 1401 is opened to add lubricating oil, the screw 1403 is screwed to push the piston 1405 to extrude the lubricating oil in the liquid storage tank 1401, then the lubricating oil is sprayed out from the spray head 1402, the bevel-tooth shaft 10 and the bevel-tooth screw rod 12 are lubricated, and the abrasion is effectively reduced.

Claims

1. The utility model provides a festival fork processing is with centre gripping jack catch that has correction function, a serial communication port, including chuck body (1) and jack catch subassembly (6), the outside front end of chuck body (1) is fixed with auto-lock subassembly (2), and auto-lock subassembly (2) are including lock sleeve (201), rod cover (202), spring (203) and lug round pin (204), the inside of lock sleeve (201) is fixed with rod cover (202), and the outside of rod cover (202) is provided with spring (203), lug round pin (204) are installed to the inner wall of rod cover (202), the inner wall of auto-lock subassembly (2) is provided with bevel pinion (3), and the externally mounted of bevel pinion (3) has bevel pinion (4), the inner wall of bevel pinion (4) is provided with well axle tube (5), jack catch subassembly (6) are installed in outside one side of bevel pinion (4), jack catch subassembly (6) include the main claw body (601), Little bearing (602), hexagon socket head cap screw (603) and guide arm (604), and the inside of the main claw body (601) is fixed with little bearing (602), the outside of little bearing (602) is provided with hexagon socket head cap screw (603), the inner wall of the main claw body (601) is fixed with guide arm (604).

2. The clamping jaw with the correcting function for yoke processing as claimed in claim 1, characterized in that the rod sleeve (202) is elastically connected with the cam pin (204) through a spring (203), the lower surface of the cam pin (204) is closely attached to the upper surface of the bevel pinion (3), and the center of the bevel pinion (3) coincides with the center of the lock sleeve (201).

3. The clamping jaw with the correcting function for the joint yoke machining according to claim 1 is characterized in that a micro clamping assembly (7) is arranged on the inner wall of the jaw assembly (6), the micro clamping assembly (7) comprises a secondary jaw body (701), a shaft rod (702), balls (703), a triangular pressing plate (704), a high-carbon steel pressing plate (705), a rubber pressing plate (706) and a ceramic pressing plate (707), the shaft rod (702) is fixed on the inner wall of the secondary jaw body (701), the balls (703) are mounted on the outer portion of the shaft rod (702), the triangular pressing plate (704) is arranged on the outer portion of the balls (703), the high-carbon steel pressing plate (705) is mounted above the triangular pressing plate (704), the rubber pressing plate (706) is arranged on one side of the triangular pressing plate (704), and the ceramic pressing plate (707) is mounted on the other side of the triangular pressing plate (704).

4. The clamping jaw with the correcting function for the joint yoke machining is characterized in that four guide rods (604) are symmetrically arranged along the central position of a main jaw body (601), the guide rods (604) are connected with an auxiliary jaw body (701) in a sliding mode, and the auxiliary jaw body (701) is connected with an inner hexagonal bolt (603) in a threaded mode.

5. The clamping jaw with the correcting function for processing the yoke as recited in claim 3, characterized in that the triangular pressing plate (704) is rotatably connected with the shaft rod (702) through balls (703), the balls (703) are arranged along the circle center of the shaft rod (702), and the central axis of the triangular pressing plate (704) is coincident with the central axis of the high-carbon steel pressing plate (705).

6. The clamping jaw with the correcting function for joint yoke machining according to claim 1 is characterized in that an inner supporting disc body (8) is arranged on the inner wall of the middle shaft cylinder (5), a large bearing (9) is fixed inside the inner supporting disc body (8), a bevel gear shaft (10) is arranged outside the large bearing (9), a square-hole bevel gear (11) is installed on one side of the bevel gear shaft (10), a bevel screw rod (12) is arranged on the other side of the square-hole bevel gear (11), and an extending jaw (13) is installed outside the bevel screw rod (12).

7. Clamping jaw with correcting function for yoke processing according to claim 6 characterized in that the bevel gear shaft (10) is connected with the inner support disc (8) through a large bearing (9) in rotation, and the bevel gear shaft (10) is meshed with the square hole bevel gear (11), and the bevel gear shaft (10) is meshed with the bevel gear lead screw (12).

8. Clamping jaw with correcting function for yoke processing according to claim 6 characterized in that the bevel lead screw (12) is in threaded connection with a extending jaw (13), the extending jaw (13) is arranged along the circle center circumference of the inner support disc body (8), and the extending jaw (13) is in sliding connection with the inner support disc body (8).

9. The clamping jaw with the correcting function for processing the yoke as recited in claim 6, characterized in that a fuel injection component (14) is arranged on one side of the outside of the inner support disc body (8), the fuel injection component (14) comprises a liquid storage tank (1401), a spray head (1402), a screw rod (1403), a bearing three (1404) and a piston (1405), the spray head (1402) is arranged on one side of the outside of the liquid storage tank (1401), the screw rod (1403) is installed on the other side of the outside of the liquid storage tank (1401), a bearing three (1404) is arranged on the outside of the screw rod (1403), and the piston (1405) is fixed on the outside of the bearing three (1404).

10. Clamping jaw with correction function for yoke processing according to claim 9 characterized in that the screw (1403) is connected with the piston (1405) by a bearing three (1404), the screw (1403) is connected with the liquid storage tank (1401) by screw thread, and the center of the liquid storage tank (1401) coincides with the center of the spray head (1402).