CN113953835A

CN113953835A - Cross shaft connection machining system and machining process

Info

Publication number: CN113953835A
Application number: CN202111208543.9A
Authority: CN
Inventors: 江波; 孙阳; 戚学进; 杨斌; 孙林生; 章鸣; 刘彩萍
Original assignee: Taizhou Dongfang Transmission Technology Co ltd
Current assignee: Taizhou Dongfang Transmission Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-01-21
Anticipated expiration: 2041-10-18
Also published as: CN113953835B

Abstract

The invention relates to the field of cross shaft machining, in particular to a cross shaft connection machining system and a machining process. The existing cross axle processing mode is easy to lead the grinding precision of the end part of the same cross axle to be inconsistent when processing the cross axle, and is also easy to lead the screw hole of the end part of the cross axle to be arranged at different positions and different depths. The invention solves the problem that the grinding precision, the hole opening position and the depth of the end part of the cross shaft are not consistent easily when the cross shaft is processed by the conventional cross shaft processing mode.

Description

Cross shaft connection machining system and machining process

Technical Field

The invention relates to the field of cross shaft machining, in particular to a cross shaft connection machining system and a cross shaft connection machining process.

Background

The universal joint is a part for realizing variable-angle power transmission, is used for changing the position of the direction of a transmission axis and is a joint part of a universal transmission device of an automobile driving system.

The universal joint pin is generally formed by casting, a large amount of metal burrs are generally remained on the surface of the universal joint pin after the universal joint pin is formed, and the universal joint pin cannot be directly used, so the universal joint pin generally needs to be polished after the universal joint pin is cast and formed, and meanwhile, a screw hole needs to be formed in the cross end of the universal joint pin so as to connect a universal fork to the universal joint pin, while the existing universal joint pin polishing mode is that the universal joint pin is fixed through a clamp, then the universal joint pin is polished and drilled through a manual operation polishing device and a drilling device, the cross end of the universal joint pin needs to be respectively processed through multiple operations during polishing and drilling, when the universal joint pin is processed by using the processing mode, the polishing precision of the end of the same universal joint pin is easy to be inconsistent, and the screw hole forming position and depth of the end of the universal joint pin are easy to be inconsistent, the condition easily influences the connection of the subsequent cross shaft and the universal fork to bring inconvenience to the processing of the cross shaft connection, and the existing cross shaft processing mode has low efficiency in the cross shaft processing, so that the inconvenience is brought to the processing of the cross shaft connection.

Disclosure of Invention

In order to solve the problems, the invention provides a cross shaft connection machining system and a machining process.

In order to achieve the purpose, the invention adopts the following technical scheme that the cross shaft connection processing system comprises a fixed base and a movable frame, wherein a movable sliding groove is formed in the top of the fixed base, the movable frame is slidably installed in the movable sliding groove, a supporting frame with a circular ring structure is fixedly installed on the top of the movable frame, two first air cylinders which are symmetrically arranged and two second air cylinders which are symmetrically arranged are fixedly installed on the inner wall of the supporting frame, the installation positions of the first air cylinders and the installation positions of the second air cylinders are alternately distributed, a first pressing plate is fixedly installed at the output end of the first air cylinder, a first motor is fixedly installed at the output end of the second air cylinder through a partition plate, a polishing sleeve is fixedly installed at the output end of the first motor, and a drill bit is fixedly installed on the inner wall of the polishing sleeve;

the fixing base is characterized in that a first support and a second support are fixedly mounted at two ends of the top of the fixing base respectively, rotary supports of circular ring structures are fixedly mounted on the first support and the second support respectively, rotary rings are rotatably mounted on the inner walls of the rotary supports, a plurality of limiting rods of concave structures are uniformly and fixedly mounted between the rotary rings on the two rotary supports along the circumferential direction of the rotary rings, a plurality of cross shafts are inserted between the limiting rods, a supporting plate is fixedly mounted at one end of the fixing base, a rotary circular groove is formed in the supporting plate, a rotary disc is rotatably mounted in the rotary circular groove, a first spring rod is fixedly mounted at one side of the rotary disc close to the first support, a second pressing plate is fixedly mounted at one end of the first spring rod far away from the rotary disc, one side of the second pressing plate far away from the first spring rod is abutted to one side of the cross shafts correspondingly arranged, the fixed base is far away from one side of backup pad sets up the slot that two symmetries set up, the slot interpolation is equipped with the inserted bar, one side of fixed base is provided with the movable plate, two the one end of the same direction of inserted bar extends and corresponds the setting the slot is rotated and is connected on the movable plate, the movable plate is close to one side fixed mounting of fixed base has the second spring beam, the second spring beam is kept away from the one end fixed mounting of movable plate has the third clamp plate, the third clamp plate is kept away from one side of second spring beam with correspond the setting one side counterbalance of cross.

As a preferred technical scheme of the invention, a plurality of grooves are uniformly formed in one side of the first pressure plate, which is far away from the first air cylinder, along the circumferential direction of the first pressure plate, a pressure lever with a V-shaped structure is rotatably mounted in each groove, a spring is fixedly mounted on the inner wall of each groove, one end of each spring, which is far away from the inner wall of each groove, is fixedly mounted on the corresponding pressure lever, and one end of each pressure lever extends out of the corresponding groove and is fixedly provided with a pressure block.

As a preferred technical scheme of the present invention, the outer wall of the insertion rod is provided with two symmetrically arranged press grooves, the inner wall of each press groove is fixedly provided with an elastic plate, one end of each elastic plate, which is far away from the inner wall of the press groove, extends out of the press groove, the mounting directions of the two elastic plates on the same insertion rod are arranged in opposite directions, the inner wall of the insertion groove is provided with two symmetrically arranged limit grooves, and one end of each elastic plate, which extends out of the press groove, is inserted into the corresponding limit groove.

As a preferable technical scheme of the invention, a plurality of linearly distributed balls are inserted into one side of the limiting rod, which is far away from the rotating circular ring.

As a preferred technical scheme of the present invention, two connecting grooves are formed in an inner wall of the supporting frame, the two connecting grooves are symmetrically arranged along a central point of the supporting frame, a roller is rotatably mounted in the connecting grooves, a mounting frame is fixedly mounted on an outer wall of the roller, two symmetrically arranged limiting pressure rollers are rotatably mounted on the mounting frame, the limiting pressure rollers contact with an outer wall of the cross shaft which is correspondingly arranged, an inner gear ring is rotatably mounted in the supporting frame, one end of the roller extends into the supporting frame and is fixedly mounted with a first gear, and the first gear is meshed with the inner gear ring.

As a preferred technical scheme of the present invention, a second motor is fixedly installed in the supporting plate, a second gear is fixedly installed at an output end of the second motor, a linkage tooth slot is formed in an outer wall of the rotating disc, and the second gear penetrates through the supporting plate, extends into the rotating circular slot, and is engaged with the linkage tooth slot.

As a preferable technical scheme of the present invention, suction cups are fixedly mounted on both sides of the second pressing plate and the third pressing plate, which are in contact with the correspondingly disposed cross shafts, and the suction cups are attracted to the correspondingly disposed cross shafts.

In addition, the invention also provides a cross shaft connection processing technology, which comprises the following steps:

s1, system checking: inspecting the system before the cross shaft is machined by using the cross shaft connecting and machining system;

s2, fixing the cross shaft: a plurality of formed cross shafts are sequentially inserted between the limiting rods, after the cross shafts are placed, the movable plate is operated to move to drive the third pressing plate to be in contact with the cross shafts at the corresponding positions and have a collision effect on the cross shafts, the collided cross shafts can push the other cross shafts to move and enable the cross shafts at the appointed positions to be in collision with the second pressing plate, and the cross shafts can be extruded mutually under the pressing effect of the second pressing plate and the third pressing plate and have a positioning effect;

s3, machining a cross shaft: the movable frame is operated to move and align with the cross shaft at the designated position, the first air cylinder is operated to push the first pressing plate to press the end parts of two ends of the cross shaft to align and fix, the second air cylinder is operated to push the grinding sleeve to be in contact with the other two ends of the cross shaft, and meanwhile, the grinding sleeve and the drill bit are driven to rotate through the first motor to grind and drill two ends of the cross shaft;

s4, reciprocating operation: after polishing and trompil in wherein both ends of cross, the first clamp plate of operation resets with the sleeve of polishing simultaneously, operation rotating disc rotates and drives gag lever post and rotation ring synchronous rotation through the second clamp plate, can drive the synchronous appointed angle of rotation of cross when the gag lever post rotates, can drive wherein not through the both ends of processing and the alignment of sleeve of polishing after the cross rotates appointed angle, above-mentioned S3 step of repetitive operation can polish and the trompil again in the other both ends of cross this moment.

The invention has the beneficial effects that:

1. the universal joint pin machining device can simultaneously polish and drill two symmetrically arranged ends of a universal joint pin, solves the problem that the polishing precision, the drilling position and the drilling depth of the end part of the universal joint pin are not consistent easily when the universal joint pin is machined by the conventional universal joint pin machining method, and simultaneously solves the problem that the efficiency is low when the universal joint pin is machined by the conventional universal joint pin machining method.

2. The invention designs the support frame, the grinding sleeve can be driven by the support frame to align with the cross shaft fixed on the limiting rod, the two end parts on the cross shaft can be simultaneously ground and holed by the grinding sleeve after being aligned under the driving of the second air cylinder and the first motor, the grinding sleeve is operated to reset after the two end parts on the cross shaft are ground and holed, the cross shaft is driven to rotate by rotating the circular ring and the limiting rod for a specified angle, the grinding sleeve is operated again to grind and hole the other two end parts on the cross shaft, the problem that the grinding precision, the holed position and the holed depth of the end part of the cross shaft are not consistent when the cross shaft is processed in the existing cross shaft processing mode is solved, and the support frame can be moved under the driving of the moving frame to sequentially grind and hole the cross shaft inserted on the limiting rod, the problem of current cross axle processing mode efficiency when processing the cross axle is not high is solved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a perspective cut-away structure diagram of the present invention.

Fig. 3 is a schematic perspective view of the support frame of the present invention.

Fig. 4 is a partial sectional structural schematic view of the support plate of the present invention.

Fig. 5 is a schematic cross-sectional view of the second presser plate of the present invention.

Fig. 6 is a schematic sectional view of the support frame of the present invention.

Fig. 7 is a partially enlarged structural view at a of fig. 6 according to the present invention.

FIG. 8 is a cross-sectional structural view of the socket and the plunger of the present invention.

Fig. 9 is a schematic sectional view of the stopper rod of the present invention.

In the figure: 1. a fixed base; 2. a movable frame; 11. a moving chute; 21. a support frame; 22. a first cylinder; 23. a second cylinder; 24. a first platen; 26. a first motor; 27. polishing the sleeve; 28. a drill bit; 12. a first bracket; 13. a second bracket; 14. rotating the bracket; 15. rotating the circular ring; 16. a limiting rod; 17. a cross shaft; 3. a support plate; 31. rotating the circular groove; 32. rotating the disc; 33. a first spring lever; 34. a second platen; 4. a slot; 41. inserting a rod; 42. moving the plate; 43. a second spring lever; 44. a third press plate; 241. a groove; 242. a pressure lever; 243. a spring; 244. briquetting; 411. pressing a groove; 412. an elastic plate; 401. a limiting groove; 161. a ball bearing; 211. connecting grooves; 212. a roller; 213. a mounting frame; 214. limiting the pinch roller; 215. an inner gear ring; 216. a first gear; 5. a second motor; 51. a second gear; 52. a linkage tooth socket; 6. and (4) sucking discs.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Referring to fig. 1 and 6, a cross shaft connection processing system includes a fixed base 1 and a movable frame 2, a movable chute 11 is formed at the top of the fixed base 1, the movable frame 2 is slidably mounted in the movable chute 11, a support frame 21 of a circular ring structure is fixedly mounted at the top of the movable frame 2, two first cylinders 22 and two second cylinders 23 are symmetrically mounted on the inner wall of the support frame 21, the mounting positions of the first cylinders 22 and the mounting positions of the second cylinders 23 are alternately distributed, a first press plate 24 is fixedly mounted at the output end of the first cylinder 22, a first motor 26 is fixedly mounted at the output end of the second cylinder 23 through a partition plate, a polishing sleeve 27 is fixedly mounted at the output end of the first motor 26, a drill 28 is fixedly mounted on the inner wall of the polishing sleeve 27, the fixed base 1 is used for supporting and fixing, the movable frame 2 is slidably connected to the fixed base 1 through the movable chute 11, remove frame 2 and be used for driving support frame 21 and remove, support frame 21 is used for fixed first cylinder 22 and second cylinder 23, first cylinder 22 is used for promoting first clamp plate 24 to press down and aligns at the tip that corresponds the cross 17 that sets up and play the fixed effect of centre gripping, second cylinder 23 is used for promoting first motor 26 and polishing sleeve 27 and removes, after polishing sleeve 27 and the tip that corresponds the cross 17 that sets up contact, operation first motor 26 drives polishing sleeve 27 and rotates, can drive drill bit 28 and carry out the trompil to the tip of cross 17 when polishing sleeve 27 rotates, polishing sleeve 27 can establish gradually at the tip of cross 17 and play the effect of polishing to it when carrying out the trompil to cross 17.

Referring to fig. 2, a first support 12 and a second support 13 are respectively and fixedly installed at two ends of the top of a fixed base 1, a rotating support 14 with a circular ring structure is fixedly installed on each of the first support 12 and the second support 13, a rotating ring 15 is rotatably installed on the inner wall of the rotating support 14, a plurality of limiting rods 16 with concave structures are uniformly and fixedly installed between the rotating rings 15 on the two rotating supports 14 along the circumferential direction of the rotating rings, a plurality of cross shafts 17 are inserted between the limiting rods 16, a supporting plate 3 is fixedly installed at one end of the fixed base 1, a rotating circular groove 31 is formed in the supporting plate 3, a rotating disc 32 is rotatably installed in the rotating circular groove 31, a first spring rod 33 is fixedly installed at one side of the rotating disc 32 close to the first support 12, a second pressing plate 34 is fixedly installed at one end of the first spring rod 33 far away from the rotating disc 32, one side of the second pressing plate 34 far away from the first spring rod 33 is abutted to one side of the cross shaft 17 correspondingly arranged, the two rotating rings 15 are rotatably connected to the first support 12 and the second support 13 through the rotating support 14, the two rotating rings 15 are connected with each other through the plurality of limiting rods 16 and rotate synchronously, the limiting rods 16 are used for inserting the cross shafts 17 and limiting and supporting the cross shafts 17, and the cross shafts 17 close to the first support 12 can be in contact with the second pressing plate 34 when the plurality of cross shafts 17 are sequentially inserted on the limiting rods 16.

Referring to fig. 3 and 8, two slots 4 are symmetrically formed in one side of the fixed base 1 away from the supporting plate 3, an inserting rod 41 is inserted into each slot 4, a moving plate 42 is disposed on one side of the fixed base 1, one end of each of the two inserting rods 41 in the same direction extends out of the corresponding slot 4 and is rotatably connected to the moving plate 42, a second spring rod 43 is fixedly mounted on one side of the moving plate 42 close to the fixed base 1, a third pressing plate 44 is fixedly mounted on one end of the second spring rod 43 away from the moving plate 42, one side of the third pressing plate 44 away from the second spring rod 43 is abutted against one side of the corresponding cross axle 17, the slot 4 is used for inserting the inserting rod 41, the inserting rod 41 is used for connecting the moving plate 42, the moving plate 42 is pushed to a designated position after the plurality of cross axles 17 are inserted into the limiting rods 16, the third pressing plate 44 is driven to abut against the cross axle 17 close to the second bracket 13 after the cross axle 42 is moved to the designated position, when the cross shafts 17 close to the second bracket 13 are abutted, other cross shafts 17 are pushed to be abutted with each other to fix the cross shafts 17, and the abutted cross shafts 17 can avoid shaking and displacement during rotation.

Referring to fig. 7, a plurality of grooves 241 are uniformly formed in one side of the first pressing plate 24 away from the first cylinder 22 along the circumferential direction, a pressing rod 242 of a V-shaped structure is rotatably mounted in each groove 241, a spring 243 is fixedly mounted on the inner wall of each groove 241, one end of each spring 243 away from the inner wall of each groove 241 is fixedly mounted on the corresponding pressing rod 242, one end of each pressing rod 242 extends out of the corresponding groove 241 and is fixedly mounted with a pressing block 244, when the first pressing plate 24 is pushed by the first cylinder 22 to abut against two ends of the cross 17, the pressing rod 242 in each groove 241 is in contact with and abuts against the end of the cross 17, one end of the abutting pressing rod 242 automatically tilts up and drives the pressing block 244 to press against the outer wall of the cross 17, the pressing of the pressing block 244 can clamp the cross 17, and the cross 17 can be prevented from shifting during polishing and drilling by clamping of the pressing block 244, it is possible to make the grinding accuracy and the boring position of the end portion of the cross 17 uniform.

Referring to fig. 8, two symmetrically-arranged press grooves 411 are formed in the outer wall of the insertion rod 41, elastic plates 412 are fixedly mounted on the inner walls of the press grooves 411, one ends, far away from the inner walls of the press grooves 411, of the elastic plates 412 extend out of the press grooves 411, the mounting directions of the two elastic plates 412 on the same insertion rod 41 are opposite to each other, two symmetrically-arranged limiting grooves 401 are formed in the inner wall of the insertion slot 4, one ends, extending out of the press grooves 411, of the elastic plates 412 are inserted into the correspondingly-arranged limiting grooves 401, when the insertion rod 41 is inserted into the insertion slot 4 under the pushing of the moving plate 42, the insertion rod 41 is manually rotated, when the insertion rod 41 rotates to a specified angle, the press grooves 411 are communicated with the limiting grooves 401, at the moment, the elastic plates 412 are automatically ejected out of the limiting grooves 401 arranged in the corresponding positions, and when the elastic plates 412 are inserted into the limiting grooves 401, the insertion rod 41 and the moving plate 42 can be positioned.

Referring to fig. 9, a plurality of balls 161 distributed linearly are inserted into one side of the limiting rod 16 away from the rotating ring 15, and the balls 161 on the limiting rod 16 can improve the smoothness of the cross 17 when the cross 17 is inserted into the limiting rod 16, and can also facilitate the cross 17 to be taken down from the limiting rod 16.

Referring to fig. 6, two connection grooves 211 are formed in the inner wall of the support frame 21, the two connection grooves 211 are symmetrically arranged along the central point of the support frame 21, a roller 212 is rotatably mounted in the connection grooves 211, a mounting frame 213 is fixedly mounted on the outer wall of the roller 212, two symmetrically arranged limiting pressing wheels 214 are rotatably mounted on the mounting frame 213, the limiting pressing wheels 214 contact with the outer wall of the cross axle 17 correspondingly arranged, an inner gear ring 215 is rotatably mounted in the support frame 21, one end of the roller 212 extends into the support frame 21 and is fixedly mounted with a first gear 216, the first gear 216 is meshed with the inner gear ring 215, the roller 212 in the connection grooves 211 is used for driving the mounting frame 213 to swing at a specified angle, the mounting frame 213 is used for driving the limiting pressing wheels 214 to abut against the cross axle 17, when the support frame 21 is driven by the moving frame 2 to move to a specified position, the mounting frame 213 drives the limiting pressing wheels 214 to abut against the cross axle 17 at the specified position at the same time, so that the support frame 21 and the specified position can be contacted with the specified position The upper cross shafts 17 are aligned, so that the grinding and hole opening precision of the cross shafts 17 is improved conveniently, when the two ends of the cross 17 are polished and holed, the internal gear ring 215 is driven to rotate by the external driving device, when the inner gear ring 215 rotates, the first gear 216 drives the roller 212 to rotate, the roller 212 rotates to drive the mounting rack 213 to swing to a designated position, and at this time, the ring 15 rotates to drive the cross 17 to rotate, when the cross 17 rotates a designated angle, the inner gear ring 215 drives the mounting rack 213 to reset, when the cross 17 is driven by the rotating ring 15 to rotate by a specified angle, the cross 17 will contact with the upper limiting pressing wheel 214 of the reset mounting rack 213 after rotating by the specified angle, accurate positioning of cross 17 can be realized through the conflict again of cross 17 and spacing pinch roller 214, be convenient for make the trompil position on cross 17 keep unanimous.

Referring to fig. 4, a second motor 5 is fixedly installed in the supporting plate 3, a second gear 51 is fixedly installed at an output end of the second motor 5, a linkage tooth groove 52 is formed in an outer wall of the rotating disc 32, the second gear 51 penetrates through the supporting plate 3 and extends into the rotating circular groove 31 and is meshed with the linkage tooth groove 52, the second motor 5 drives the rotating disc 32 to rotate through the second gear 51 and the linkage tooth groove 52, the rotating disc 32 rotates to drive the first spring rod 33 and the second pressing plate 34 to rotate synchronously, and when the second pressing plate 34 rotates, the cross shaft 17 abutting against the second pressing plate 34 can be driven to rotate synchronously.

Referring to fig. 5, the suction cups 6 are fixedly installed on both sides of the second pressing plate 34 and the third pressing plate 44, which are in contact with the correspondingly arranged cross shafts 17, the suction cups 6 are adsorbed on the correspondingly arranged cross shafts 17, the suction cups 6 can drive the cross shafts 17 to synchronously rotate when the second pressing plate 34 rotates, and the suction cups 6 can drive the third pressing plate 44 to synchronously rotate when the cross shafts 17 rotate.

s2, fixing the cross shaft: a plurality of formed cross shafts 17 are sequentially inserted between the limiting rods 16, after the cross shafts 17 are placed, the operation moving plate 42 moves to drive the third pressing plate 44 to be in contact with the cross shafts 17 at the corresponding positions and have an abutting effect on the cross shafts 17, the abutted cross shafts 17 push the rest of the cross shafts 17 to move and enable the cross shafts 17 at the specified positions to be abutted against the second pressing plate 34, and at the moment, the cross shafts 17 can be mutually extruded together under the pressing effect of the second pressing plate 34 and the third pressing plate 44 and have a positioning effect;

s3, machining a cross shaft: the movable frame 2 is operated to move and align with the cross shaft 17 at a designated position, the first air cylinder 22 is operated to push the first pressing plate 24 to press the end parts of two ends of the cross shaft 17 to align and fix, the second air cylinder 25 is operated to push the grinding sleeve 27 to contact with the other two ends of the cross shaft 17, and meanwhile, the grinding sleeve 27 and the drill bit 28 are driven by the first motor 26 to rotate to grind and drill holes on the two ends of the cross shaft 17;

s4, reciprocating operation: after two ends of the cross 17 are polished and holed, the first pressing plate 24 and the polishing sleeve 27 are operated to reset simultaneously, the rotating disc 32 is operated to rotate and drive the limiting rod 16 and the rotating ring 15 to rotate synchronously through the second pressing plate 34, the limiting rod 16 can drive the cross 17 to rotate synchronously at an appointed angle when rotating, the cross 17 can drive two ends which are not processed to be aligned with the polishing sleeve 27 after rotating the appointed angle, and the step of S3 is repeatedly operated to polish and hole the other two ends of the cross 17 again.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a system of processing is connected to cross axle, includes unable adjustment base (1) and removes frame (2), its characterized in that: the top of the fixed base (1) is provided with a movable sliding chute (11), the movable frame (2) is slidably arranged in the movable sliding chute (11), a supporting frame (21) with a circular ring structure is fixedly arranged at the top of the movable frame (2), two first cylinders (22) which are symmetrically arranged and two second cylinders (23) which are symmetrically arranged are fixedly arranged on the inner wall of the supporting frame (21), the installation positions of the first air cylinder (22) and the second air cylinder (23) are alternately distributed, a first pressing plate (24) is fixedly arranged at the output end of the first air cylinder (22), the output end of the second cylinder (23) is fixedly provided with a first motor (26) through a clapboard, a grinding sleeve (27) is fixedly arranged at the output end of the first motor (26), a drill bit (28) is fixedly arranged on the inner wall of the grinding sleeve (27);

the fixed base comprises a fixed base (1), wherein a first support (12) and a second support (13) are fixedly mounted at two ends of the top of the fixed base (1) respectively, rotary supports (14) of a circular ring structure are fixedly mounted on the first support (12) and the second support (13) respectively, rotary rings (15) are rotatably mounted on the inner wall of each rotary support (14), limiting rods (16) of a plurality of concave structures are uniformly and fixedly mounted between the rotary rings (15) on the two rotary supports (14) along the circumferential direction of the rotary rings, a plurality of cross shafts (17) are inserted between the limiting rods (16), a supporting plate (3) is fixedly mounted at one end of the fixed base (1), rotary circular grooves (31) are formed in the supporting plate (3), rotary discs (32) are rotatably mounted in the rotary circular grooves (31), and first spring rods (33) are fixedly mounted on one side, close to the first support (12), of the rotary discs (32), one end of the first spring rod (33) far away from the rotating disc (32) is fixedly provided with a second pressing plate (34), one side of the first spring rod (33) far away from the second pressing plate (34) is inconsistent with one side of the cross shaft (17) correspondingly arranged, one side of the supporting plate (3) far away from the fixed base (1) is provided with two slots (4) symmetrically arranged, inserting rods (41) are inserted into the slots (4), one side of the fixed base (1) is provided with a moving plate (42), one ends of the two inserting rods (41) in the same direction extend out of the slots (4) correspondingly arranged and are rotatably connected onto the moving plate (42), one side of the moving plate (42) close to the fixed base (1) is fixedly provided with a second spring rod (43), one end of the moving plate (42) far away from the second spring rod (43) is fixedly provided with a third pressing plate (44), one side of the third pressure plate (44) far away from the second spring rod (43) is abutted against one side of the cross shaft (17) which is correspondingly arranged.

2. The cross-pin joint machining system of claim 1, wherein: first clamp plate (24) keep away from a plurality of recesses (241) have evenly been seted up along its circumference in one side of first cylinder (22), depression bar (242) of V type structure are installed to recess (241) internal rotation, fixed mounting has spring (243) on the inner wall of recess (241), spring (243) are kept away from the one end fixed mounting of recess (241) inner wall corresponds the setting on depression bar (242), the one end of depression bar (242) is extended to correspond the setting recess (241) and fixed mounting have briquetting (244).

3. The cross-pin joint machining system of claim 1, wherein: the outer wall of inserted bar (41) on set up indent (411) that two symmetries set up, fixed mounting has elastic plate (412) on the inner wall of indent (411), elastic plate (412) are kept away from the one end of indent (411) inner wall extends indent (411), and is same two on inserted bar (41) the installation direction of elastic plate (412) each other is reverse setting, it is provided with spacing groove (401) to have seted up two symmetries on the inner wall of slot (4), elastic plate (412) extend the one end of indent (411) is inserted and is established and correspond the setting in spacing groove (401).

4. The cross-pin joint machining system of claim 1, wherein: a plurality of linearly distributed balls (161) are inserted into one side of the limiting rod (16) far away from the rotating circular ring (15).

5. The cross-pin joint machining system of claim 1, wherein: the inner wall of support frame (21) on seted up two spread groove (211), two the position of seting up of spread groove (211) is followed the central point symmetry of support frame (21) sets up, roller bearing (212) are installed to spread groove (211) internal rotation, fixed mounting has mounting bracket (213) on the outer wall of roller bearing (212), rotate on mounting bracket (213) and install spacing pinch roller (214) that two symmetries set up, spacing pinch roller (214) and corresponding setting the outer wall of cross (17) contacts, interior gear ring (215) are installed to support frame (21) internal rotation, the one end of roller bearing (212) extends to in support frame (21) and fixed mounting have first gear (216), first gear (216) with interior gear ring (215) mesh mutually.

6. The cross-pin joint machining system of claim 1, wherein: backup pad (3) internal fixed mounting have second motor (5), the output fixed mounting of second motor (5) has second gear (51), linkage tooth's socket (52) have been seted up on the outer wall of rotating disc (32), second gear (51) run through backup pad (3) and extend to rotate in circle groove (31) and with linkage tooth's socket (52) mesh mutually.

7. The cross-pin joint machining system of claim 1, wherein: the second pressing plate (34) and the third pressing plate (44) are fixedly provided with suckers (6) on one sides, contacted with the cross shafts (17), of the corresponding arrangement, and the suckers (6) are adsorbed on the cross shafts (17) of the corresponding arrangement.

8. The cross-pin joint machining system of claim 1, wherein: the process for processing the cross shaft by using the cross shaft connection processing system comprises the following steps:

s2, fixing the cross shaft: a plurality of formed cross shafts (17) are sequentially inserted between the limiting rods (16), when the cross shafts (17) are placed, the operation moving plate (42) moves to drive the third pressing plate (44) to be in contact with the cross shafts (17) at the corresponding positions and have a collision effect on the third pressing plate, the collided cross shafts (17) can push the rest of the cross shafts (17) to move and enable the cross shafts (17) at the specified positions to be in contact with the second pressing plate (34), and at the moment, the cross shafts (17) can be mutually extruded under the pressing effect of the second pressing plate (34) and the third pressing plate (44) and have a positioning effect;

s3, machining a cross shaft: the operation moving frame (2) moves and is aligned with the cross shaft (17) at a designated position, the operation first air cylinder (22) pushes the first pressing plate (24) to press the end parts of two ends of the cross shaft (17) to be aligned and fixed, the operation second air cylinder (25) pushes the grinding sleeve (27) to be in contact with the other two ends of the cross shaft (17), and meanwhile, the first motor (26) drives the grinding sleeve (27) and the drill bit (28) to rotate to grind and drill holes in the two ends of the cross shaft (17);

s4, reciprocating operation: after wherein both ends of cross axle (17) are polished and are trompil, operate first clamp plate (24) and polish sleeve (27) and reset simultaneously, operation rotating disc (32) rotate and drive gag lever post (16) and rotate the synchronous rotation of ring (15) through second clamp plate (34), can drive cross axle (17) synchronous rotation appointed angle when gag lever post (16) rotate, can drive wherein not aligning with polishing sleeve (27) through the both ends of processing after cross axle (17) rotate appointed angle, the above-mentioned S3 step of repeated operation can polish and the trompil again to the other both ends of cross axle (17) this moment.