CN114458701B - High-strength universal joint and processing technology thereof - Google Patents
High-strength universal joint and processing technology thereof Download PDFInfo
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- CN114458701B CN114458701B CN202210062500.2A CN202210062500A CN114458701B CN 114458701 B CN114458701 B CN 114458701B CN 202210062500 A CN202210062500 A CN 202210062500A CN 114458701 B CN114458701 B CN 114458701B
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- cross
- fork body
- placing table
- shaped fork
- pressing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The application relates to a high-strength universal joint, which comprises a cross-shaped fork body and shaft sleeves sleeved at four end parts of the cross-shaped fork body, wherein a roller pin is arranged between the inner side wall of each shaft sleeve and the outer wall of the end part of the cross-shaped fork body; an installation ring groove for accommodating the roller pin is formed in the side wall of the cross-shaped fork body; the lateral wall that the mounting ring groove is close to cross body center is for strengthening the inclined plane, and towards the direction that is close to cross body center, strengthens the inclined plane and extends towards the direction of keeping away from cross body tip axis, strengthens the inclined plane and is used for the butt oil blanket. The reinforcing inclined plane is arranged, so that the overall strength of the cross-shaped fork body is improved, the static torsion strength which can be borne by the cross-shaped fork body is further enhanced, and the cross-shaped fork body is not easy to damage in the application process; set up limit structure into simple mechanical mechanism, need not additionally to install the controlgear who needs the power consumption, reduce the power consumption, reduction in production cost, energy-concerving and environment-protective.
Description
Technical Field
The application relates to the field of universal joints, in particular to a high-strength universal joint and a machining process thereof.
Background
The universal joint is combined with a transmission shaft and is called a universal joint transmission device. On a vehicle driven by a rear wheel of a front engine, a universal joint transmission device is arranged between an output shaft of a transmission and an input shaft of a main speed reducer of a drive axle; the front engine front wheel driven vehicle omits a transmission shaft, and the universal joint is arranged between a front axle half shaft which is responsible for driving and steering and wheels. The cross shaft is a machine 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.
However, in the actual use process of the cross axle, the impact load and the torque of the cross axle are large, and in the moving process of an automobile, due to jolt and other reasons, the cross axle still needs to be subjected to alternating impact load with high frequency in the application process, so that the cross axle is easy to break and damage.
Disclosure of Invention
In order to solve the problem that a cross-shaped fork body is easy to damage in the application process, the application provides a high-strength universal joint and a machining process thereof.
In a first aspect, the present application provides a high strength universal joint, which adopts the following technical scheme:
a high-strength universal joint comprises a cross-shaped fork body and shaft sleeves sleeved at four end parts of the cross-shaped fork body, wherein a roller pin is arranged between the inner side wall of each shaft sleeve and the outer wall of the end part of the cross-shaped fork body; the side wall of the cross-shaped fork body is provided with a mounting ring groove for accommodating a roller pin, and the mounting ring groove penetrates through the end part far away from the center of the cross-shaped fork body; the lateral wall that the mounting ring groove is close to cross body center is for strengthening the inclined plane, towards the direction that is close to cross body center, strengthen the inclined plane and extend towards the direction of keeping away from cross body tip axis, it is used for the butt oil blanket to strengthen the inclined plane.
Through adopting above-mentioned technical scheme, set up to strengthening the inclined plane through the lateral wall that is close to the cross body center with the mounting ring groove, because the orientation that is close to cross body center is being strengthened, strengthen the inclined plane and extend towards the direction of keeping away from cross body tip axis for strengthen that the inclined plane can be better with cross body tip and cross body central part realize comparatively steady transition, improve the joint strength of cross body tip and cross body central part, thereby improve the bulk strength of the cross body, and then strengthen the static torque strength that the cross body can bear, make the cross body not fragile in the application. The machine gun inclined plane is abutted to the oil seal to increase static friction force and improve sealing effect.
Optionally, the end of the shaft sleeve far away from the center of the cross-shaped fork body is provided with a chamfer, and the chamfer extends along the circumferential direction of the shaft sleeve.
By adopting the technical scheme and the arrangement of the chamfers, the subsequent other parts are more convenient to be sleeved on the shaft sleeve.
In a second aspect, the present application provides a process for manufacturing a high-strength universal joint, which adopts the following technical scheme:
a processing technology of a high-strength universal joint comprises a polishing device for polishing a reinforcing inclined plane, wherein the polishing device comprises a rack, a placing table arranged on the rack and used for placing a cross-shaped body, a limiting structure used for fixing the cross-shaped body on the placing table and a processing mechanism used for processing and forming the reinforcing inclined plane;
the processing mechanism comprises a grinding cutter cylinder, a first driving mechanism for driving the grinding cutter cylinder to rotate and a second driving mechanism for driving the grinding cutter cylinder to be far away from or close to the cross-shaped fork body; the grinding cutter barrel is sleeved at the end part of the cross fork body, the end face, facing the cross fork body, of the grinding cutter barrel is a grinding face, the grinding face is inclined towards the direction close to the cross fork body, and the grinding face is inclined towards the direction far away from the axis of the grinding cutter barrel;
the method comprises the following steps:
s1, processing the cross fork body by a grinding device to form a reinforced inclined plane;
s2, assembling the roller pin and the oil seal on the inner wall of the shaft sleeve;
and S3, sleeving the shaft sleeve on the end part of the cross-shaped body.
Through adopting above-mentioned technical scheme, the installation annular has been seted up this moment on the cross body, but strengthens the inclined plane and need polish through equipment and form. When polishing, place the cross fork body and place the bench, limit structure fixes the cross fork body and places the bench, and the tip of the cross fork body is kept away from or is close to the sword section of thick bamboo of polishing of second actuating mechanism drive, and when the sword section of thick bamboo of polishing was close to the cross fork body, the sword section of thick bamboo cover of polishing was established on the tip of the cross fork body, and the face of polishing of the sword section of thick bamboo of polishing supports the cell wall that the mounting ring groove is close to cross fork body center tightly, makes the sword section of thick bamboo of polishing rotate again, and then polishes out and strengthen the inclined plane for it is convenient to strengthen the inclined plane and polish.
Optionally, the placing table is rotatably disposed on the frame, the polishing device further includes a placing motor for driving the placing table to rotate, a motor shaft of the placing motor is vertically upward, and the motor shaft of the placing motor is fixed at the bottom of the placing table;
the cross-shaped fork body is flatly placed on the placing table, and the limiting structure is used for limiting the cross-shaped fork body on the placing table.
Through adopting above-mentioned technical scheme, because there are four tip on the cross body, every tip all need polish, rotate the cross body through the manual work at every turn, make the deviation appear easily in cross body position on the one hand, and staff's operation safety also is difficult to guarantee, and the staff needs the more manager of cost to improve the cost of labor. The placing motor is adopted to control the placing table to rotate, so that the cross-shaped fork body placed on the placing table can accurately rotate, the polishing knife cylinder can conveniently face the end part of the cross-shaped fork body, and polishing work is conveniently carried out; the operation experience of workers is reduced, so that one worker can watch a plurality of instruments simultaneously, the labor cost is reduced, and the production efficiency is improved.
Optionally, a ring table is arranged on the top surface of the machine frame, the ring table protrudes out of the top surface of the machine frame, a lifting groove for the placing table to vertically slide is arranged in the center of the ring table, and the polishing device further comprises a lifting device for driving the placing table to lift; the limiting structure comprises four limiting frames which correspond to the four end parts of the cross fork body one by one, and the side wall of the lifting groove is provided with an installation groove for installing the limiting frames; the limiting frame comprises a connecting rod, a transmission rod and a pressing part, the middle part of the connecting rod in the length direction is rotatably connected to the groove wall of the mounting groove through an articulated shaft, the transmission rod is fixed at the bottom end of the connecting rod, and the length direction of the transmission rod faces to the direction close to the center of the bottom of the placing table;
the pressing part is arranged at the top end of the connecting rod and is used for pressing the cross-shaped body onto the placing table; the limiting structure further comprises a restoring spring, and the restoring spring drives the pressing part to be separated from the cross-shaped body on the placing table;
when the placing table slides downwards, the bottom of the placing table is abutted against the transmission rod, the pressing part at the top end of the connecting rod moves towards the center direction of the placing table, and when the cross-shaped fork body is placed on the placing table, the pressing part presses the cross-shaped fork body on the placing table;
when the placing table slides upwards, the restoring spring drives the pressing part to be separated from the cross-shaped fork body on the placing table.
By adopting the technical scheme, the pressing part is controlled to press or separate from the cross fork body on the placing table through the ascending and descending of the placing table, at the moment, the four end parts of the cross fork body correspond to one pressing part one by one, so that the limiting structure can automatically fix the cross fork body through a mechanical structure, the structure is simple, and after the placing table ascends, the pressing part is separated from the cross fork body, at the moment, the placing table can rotate, the position of the cross fork body is adjusted, and the end part of the aligning polishing knife cylinder on the cross fork body is replaced; after the adjustment of the position of the cross fork body is completed, the placing table descends, so that the pressing part fixes the cross fork body, and the processing mechanism processes the cross fork body again. The limiting structure of this application makes the cross body spacing convenient, and need not the manual work and operate, further reduces the cost of labor, improves production automation.
Optionally, a cross positioning groove for positioning the cross body is formed in the placing table.
Through adopting above-mentioned technical scheme, when the cross body is located the cross constant head tank for place the platform slew velocity when very fast, the difficult emergence displacement of the cross body, thereby guarantee to polish the convenient smooth cup joint of sleeve at the cross body tip.
Optionally, the placing table comprises a base plate and a cross table on the base plate, and the cross table is used for placing the cross body; the pressing part comprises two first pressing strips, two connecting strips and a second pressing strip which are arranged in parallel;
one ends of the two first pressing strips are fixed with the top ends of the connecting rods, the other ends of the two first pressing strips correspond to the connecting strips in a one-to-one correspondence manner, the end parts, far away from the first pressing strips, of the two connecting strips are connected with the two ends of the second pressing strips in the length direction, and the second pressing strips are used for abutting against a cross fork body on a cross table; the cross platform includes central section and four spinal branch sections of even connection in central section circumference, the width of a spinal branch section top surface is the same with the width of cross body tip, and the width of a spinal branch section top surface is the same with two first intervals that compress tightly between the strip, the distance of installation ring groove to cross body center is greater than and is located a distance to central section center.
By adopting the technical scheme, the cross-shaped table is arranged, when the cross-shaped fork body is placed on the cross-shaped table, the four circumferential end parts of the cross-shaped fork body are in a suspended state, so that when the polishing knife cylinder is sleeved on the end parts of the cross-shaped fork body, the polishing knife cylinder is not easy to rub the placing table, and the polishing knife cylinder is not easy to damage;
when compressing tightly the cross body with the portion, the second supports tight strip and compresses tightly the one side that deviates from the cross at the cross body, two connecting strips are located the both sides of cross body tip, and the both sides of two connecting strip sliding contact branch sections, two connecting strips have certain location effect, when the skew is placed to the cross body, the position accessible connecting strip of the cross body removes and adjusts when hugging closely a section both sides wall, make the connecting strip parallel with the length direction of a section, when the cross body is fixed, rectify cross body position, thereby make things convenient for follow-up polishing knife section of thick bamboo cover to establish on the tip of the cross body.
Optionally, the connecting bar comprises a fixing section and a damping spring, the fixing section is connected with the end portion of the first pressing bar far away from the connecting rod, and the damping spring is connected with the second pressing bar far away from the fixing section.
Through adopting above-mentioned technical scheme, when the sword section of thick bamboo of polishing was polished to the cross body, can produce certain vibrations, through setting up damping spring, reduce the evaporation to dryness that transmits articulated shaft department for articulated shaft department is difficult not hard up or damages.
Optionally, the polishing device further comprises a conveying mechanism for feeding and discharging, the conveying mechanism comprises a manipulator and a conveying structure for driving the manipulator to move, and the manipulator is used for clamping the cross-shaped body.
Through adopting above-mentioned technical scheme, carry out material loading and unloading through conveying mechanism, make the staff need not oneself hand and go to operate to reduce the potential safety hazard, guarantee staff life safety also is a staff and can see the many equipment of polishing of management simultaneously, reduces the cost of labor.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the reinforcing inclined plane, the overall strength of the cross-shaped fork body is improved, the static torsion strength which can be borne by the cross-shaped fork body is further enhanced, and the cross-shaped fork body is not easy to damage in the application process;
2. the cross fork body is positioned more accurately by arranging the cross table and the limiting structure, the polishing cutter cylinder is convenient to sleeve at the end part of the cross fork body, the polishing device realizes full-automatic processing, a digital factory is convenient to manufacture, manual operation is hardly required in the processing process, the processing accuracy is improved, the output of defective products is reduced, the raw material waste is reduced, and the energy-saving and environment-friendly effects are achieved;
3. the limiting structure is set to be a simple mechanical mechanism, control equipment needing power consumption does not need to be additionally installed, the power consumption is reduced, the production cost is reduced, and the energy-saving and environment-friendly effects are achieved;
4. the damping spring is arranged on the hinge shaft, so that the hinge shaft is not easy to loosen or damage.
Drawings
FIG. 1 is a general schematic view of a spider according to an embodiment of the present application, shown protruding primarily from the structure within the bushing.
Fig. 2 is a second overall schematic view of the spider according to the embodiment of the present application, mainly illustrating the structure of the reinforcement bevel.
Fig. 3 is an overall schematic view of the polishing apparatus of the embodiment.
FIG. 4 is a schematic view of the structure in the process chamber of the embodiment.
FIG. 5 is a schematic view of the structure inside the camera obscura of the embodiment.
Fig. 6 is a first schematic view of a limiting structure according to an embodiment, which mainly protrudes from a structure of a cross-shaped positioning slot.
Fig. 7 is a schematic diagram of a second limiting structure of the embodiment, mainly illustrating the structure of the restoring spring.
Fig. 8 is an overall schematic view of the spacing frame of the embodiment.
Fig. 9 is a cross-sectional view taken along line a-a of fig. 8.
Fig. 10 is a schematic structural view of a conveying mechanism of the embodiment.
Description of reference numerals: 1. a cross-shaped body; 11. mounting a ring groove; 12. reinforcing the inclined plane; 2. a shaft sleeve; 21. inserting grooves; 22. chamfering; 3. rolling needles; 4. oil sealing; 5. a polishing device; 51. a frame; 511. a processing cavity; 512. a processing table; 5121. a slide rail; 52. a placing table; 521. a chassis; 522. a cross table; 5221. a central section; 5222. a branch section; 523. a cross positioning slot; 53. a limiting structure; 531. a limiting frame; 5311. a connecting rod; 5312. a transmission rod; 5313. a pressing part; 53131. a first compression bar; 53132. a connecting strip; 531321, a fixed segment; 531322, damping springs; 531323, an inner groove; 53133. a second compression bar; 5314. hinging a shaft; 5315. a restoring spring; 532. mounting grooves; 54. a processing mechanism; 541. polishing the knife cylinder; 5411. grinding the cavity; 5412. grinding the surface; 542. a first drive mechanism; 543. a second drive mechanism; 5421. a sliding seat; 5422. polishing the motor; 5431. a sliding screw rod; 5432. a slip motor; 6. a ring platform; 61. a lifting groove; 62. placing a motor; 63. a lifting device; 7. a hidden groove; 71. a sliding bottom plate; 631. a lifting cylinder; 8. a conveying mechanism; 81. a manipulator; 82. a conveying structure; 821. a first conveying assembly; 8211. a first conveying base; 8212. a first conveying screw rod; 8213. a first conveying motor; 822. a second transport assembly; 8221. a second delivery seat; 8222. a second conveying screw rod; 8223. a second conveying motor; 9. and a slider.
Detailed Description
The present application is described in further detail below with reference to figures 1-10.
The embodiment of the application discloses a high-strength universal joint. Referring to fig. 1, the high-strength universal joint and the processing technology thereof comprise a cross-shaped body 1, shaft sleeves 2 sleeved at four end parts of the cross-shaped body 1, and a roller pin 3 and an oil seal 4 arranged in the shaft sleeves 2. The shaft sleeve 2 is provided with an inserting groove 21 for inserting the end part of the cross-shaped body 1, the roller pin 3 extends along the circumferential direction of the inner wall of the inserting groove 21, and the oil seal 4 is fixed on one side of the roller pin 3 close to the cross-shaped body 1.
Referring to fig. 1 and 2, a mounting ring groove 11 for accommodating the needle roller 3 is formed in a side wall of the spider 1, and the mounting ring groove 11 penetrates through an end portion far from a central portion of the spider 1. The side wall of the mounting ring groove 11 close to the central part of the cross-shaped body 1 is a reinforced inclined surface 12. Towards the centre of the spider 1, the reinforcement bevel 12 extends away from the axis of the end of the spider 1. When the shaft sleeve 2 is sleeved on the end part of the cross-shaped fork body 1, the reinforced inclined surface 12 is abutted against the oil seal 4.
Referring to fig. 2, the end of the shaft sleeve 2 far away from the center of the cross-shaped body 1 is provided with a chamfer 22 of 25 degrees, the chamfer 22 extends along the circumferential direction of the shaft sleeve 2, and the chamfer 22 is arranged, so that when other components are sleeved on the shaft sleeve 2, the installation is more convenient.
Referring to fig. 2 and 3, the embodiment of the present application further discloses a process for machining a high strength universal joint, including a grinding device 5 for machining a reinforcing inclined surface 12; the grinding device 5 comprises a frame 51, a placing table 52 for placing the cross-shaped body 1, a limiting structure 53 for fixing the fixed cross-shaped body 1 on the placing table 52, and a processing mechanism 54 for processing the cross-shaped body 1 to form the reinforced inclined plane 12.
Referring to fig. 3, a processing chamber 511 is provided in the frame 51, and a processing table 512 is provided on the bottom wall of the processing chamber 511. The placing table 52, the limiting structure 53 and the processing mechanism 54 are all positioned on the processing table 512.
Referring to fig. 3, during machining, the spider 1 is placed on the placement table 52, the limiting structure 53 fixes the spider 1, and the machining mechanism 54 machines the spider 1.
Referring to fig. 4, the processing mechanism 54 includes a sharpening blade cylinder 541, a first driving mechanism 542 for driving the sharpening blade cylinder 541 to rotate, and a second driving mechanism 543 for driving the sharpening blade cylinder 541 to move away from or close to the cross body 1.
Referring to fig. 4, a polishing cavity 5411 for inserting and entering one end of the cross-shaped body 1 is coaxially formed in the polishing knife cylinder 541, the end face, facing the cross-shaped body 1, of the polishing knife cylinder 541 is a polishing face 5412, and faces the direction close to the cross-shaped body 1, the polishing face 5412 is inclined in the direction away from the axis of the polishing knife cylinder 541, namely the polishing face 5412 is inclined in the same direction as the inclined face 12, the polishing face 5412 abuts against the end face, close to the center of the cross-shaped body 1, of the mounting ring groove 11 and rotates, and therefore the inclined face 12 is polished to generate the reinforced face 12.
Referring to fig. 4, a sliding seat 5421 is slidably disposed on the processing table 512, the first driving mechanism 542 is a polishing motor 5422, the polishing motor 5422 is fixed on the sliding seat 5421, the polishing knife cylinder 541 is rotatably connected to the sliding seat 5421, and the polishing motor 5422 and the polishing knife cylinder 541 are coaxially fixed.
Referring to fig. 4, the processing table 512 is provided with a slide rail 5121, the slide seat 5421 is slidably connected to the slide rail 5121, and the slide seat 5421 is slidably connected to the processing table 512 through the slide rail 5121. The slide rail 5121 is rotatably connected with a slide screw rod 5431, the length direction of the slide screw rod 5431 is parallel to the length direction of the slide rail 5121, and the length direction of the slide rail 5121 is parallel to the length direction of the polishing knife cylinder 541. The second driving mechanism 543 is a sliding motor 5432, a motor shaft of the sliding motor 5432 is coaxially fixed with the sliding lead screw 5431, and the sliding seat 5421 is in threaded connection with the sliding lead screw 5431.
Referring to fig. 4 and 5, the ring table 6 is fixed on the top surface of the processing table 512, the axis of the ring table 6 is vertical, the lifting groove 61 is coaxially formed on the top surface of the ring table 6, and the placing table 52 is slidably connected in the lifting groove 61. The grinding device 5 further includes a placing motor 62 for driving the placing table 52 to rotate and a lifting device 63 for driving the placing table 52 to slide in the lifting groove 61.
Referring to fig. 4 and 5, a dark groove 7 is formed in the frame 51, the dark groove 7 is located below the lifting groove 61, and the dark groove 7 is communicated with the lifting groove 61. A sliding bottom plate 71 is slidably disposed in the dark groove 7, and the sliding direction of the sliding bottom plate 71 is the same as the sliding direction of the placing table 52. The placing motor 62 is fixed on the side of the sliding bottom plate 71 facing the lifting groove 61, and a motor shaft of the placing motor 62 is coaxially fixed with the bottom of the placing table 52. The lifting device 63 is a lifting cylinder 631, the piston shaft of the lifting cylinder 631 faces downwards vertically, the lifting cylinder 631 is fixed on the groove wall of the blind groove 7, and the piston shaft of the lifting cylinder 631 is fixed on the sliding bottom plate 71.
Referring to fig. 5 and 6, the placing table 52 includes a bottom plate 521 and a cross table 522 integrally formed on the top surface of the bottom plate 521, the bottom plate 521 and the cross table 522 are coaxially fixed, and the placing motor 62 is coaxially fixed to the bottom surface of the bottom plate 521. The cross table 522 includes a central section 5221 and four branch sections 5222 uniformly connected to the circumference of the central section 5221, and the length directions of the four branch sections 5222 are all horizontal directions. The top surface of leg 5222 is the same width as the end of spider 1.
Referring to fig. 4 and 6, the distance from the mounting ring groove 11 to the center of the cross-shaped body 1 is greater than the distance from the branch section 5222 to the center of the central section 5221, and the branch section 5222 is located on the side of the mounting ring groove 11 near the center of the cross-shaped body 1. When the cross-shaped fork 1 is placed on the cross-shaped table 522, the branch sections 5222 are correspondingly located under the end portion of the cross-shaped fork 1 one by one, and the mounting ring grooves 11 at the four end portions of the cross-shaped fork 1 are all in a suspended state, so that the polishing knife cylinder 541 is conveniently sleeved on the end portion of the cross-shaped fork 1.
Referring to fig. 6, a cross-shaped positioning slot 523 is arranged on the cross-shaped table 522, the depth of the cross-shaped positioning slot 523 is 2-5mm, and when the cross-shaped body 1 is placed in the cross-shaped positioning slot 523, the outer wall of the cross-shaped body 1 is attached to the slot wall of the cross-shaped positioning slot 523.
Referring to fig. 6 and 7, the limiting structure 53 includes four limiting frames 531 corresponding to the four ends of the cross body 1 one by one, a mounting groove 532 for mounting the limiting frames 531 is formed on the groove wall of the lifting groove 61, and the four mounting grooves 532 correspond to the support sections 5222 one by one.
Referring to fig. 6 and 7, the stopper 531 includes a connection rod 5311, a transmission rod 5312, and a pressing portion 5313, the connection rod 5311 is rotatably connected to a groove wall of the mounting groove 532 by providing a hinge shaft 5314, and a length direction of the connection rod 5311 is perpendicular to a length direction of the hinge shaft 5314. The transmission rod 5312 is fixed to the bottom end of the connecting rod 5311, the transmission rod 5312 extends towards the direction close to the middle of the chassis 521, and the transmission rod 5312 is used for abutting against the lower portion of the chassis 521. The pressing portion 5313 is fixed to the top of the connecting rod 5311, the pressing portion 5313 is located above the cross-shaped table 522, and the pressing portion 5313 is used for pressing the cross-shaped body 1 onto the cross-shaped table 522. When the connecting rod 5311 rotates, the pressing portion 5313 moves away from or close to the top surface of the cross table 522.
Referring to fig. 7, a restoring spring 5315 is fixed to the hinge shaft 5314, and the elastic force of the restoring spring 5315 urges the pressing portion 5313 away from the cross table 522.
Referring to fig. 6 and 7, when the placing table 52 slides in the lifting groove 61 and the placing table 52 descends, the base plate 521 abuts against the transmission rod 5312, and the pressing part 5313 rotates in a direction close to the cross table 522 by a lever principle, so that the four ends of the cross body 1 are fixed on the cross table 522 in a pressure-equalizing manner; when the placing table 52 is lifted, the restoring spring 5315 drives the pressing portion 5313 to be far away from the cross table 522, the cross fork body 1 on the placing table 52 can be fed or discharged, the placing table 52 can also be rotated, the direction of the end portion of the cross fork body 1 is changed, and processing is facilitated.
Referring to fig. 8, the pressing part 5313 includes two first pressing bars 53131, two connecting bars 53132, and a second pressing bar 53133, which are parallel to each other. One end of the first pressing strip 53131 is fixed with the top end of the connecting rod 5311, the other end of the first pressing strip 53131 is fixed with the connecting strip 53132, the two connecting strips 53132 of the same pressing portion 5313 are parallel to each other, the first pressing strip 53131 and the connecting strip 53132 are connected in an L shape, and the end portions, far away from the first pressing strip 53131, of the two connecting strips 53132 are connected through the second pressing strip 53133.
When compressing tightly portion 5313 compressed tightly the cross body 1 and fixed on the cross platform 522, the tip of propping up a section 5222 and the cross body 1 is located between two connecting strips 53132, two connecting strips 53132 and a section 5222 both sides sliding contact, and the interval between two connecting strips 53132 equals with the width of the tip of the cross body 1, make when fixed to the cross body 1, can also adjust the position of the cross body 1, make the convenient accurate cup joint of a sharpener section of thick bamboo 541 at the tip of the cross body 1. The end of the first pressing strip 53131 is located on the top surface of the base plate 521 and does not contact with the base plate 521, so that the limiting frame 531 can be turned over conveniently, and the second pressing strip 53133 abuts against the cross-shaped body 1, so that the cross-shaped body 1 is pressed and fixed on the cross-shaped table 522.
Referring to fig. 9, the connecting bar 53132 includes a fixing section 531321 and a damping spring 531322, which are connected to each other at end portions, a bottom end of the second pressing bar 53133 is fixed to the first pressing bar 53131, inner grooves 531323 for accommodating the damping spring 531322 are respectively formed at end portions of the fixing section 531321 and the second pressing bar 53133, which are close to each other, the second pressing bar 53133 is slidably sleeved at the end portion of the connecting bar 53132 through the inner groove 531323, and the fixing section 531321 and the second pressing bar 53133 are connected through the damping spring 531322.
Referring to fig. 10, the polishing device 5 further includes a conveying mechanism 8 for feeding and discharging, the conveying mechanism 8 includes a manipulator 81 and a conveying structure 82 for driving the manipulator 81 to move, and the manipulator 81 is used for clamping the cross-shaped body 1. The conveying structure 82 comprises a first conveying assembly 821 driving the mechanical arm 81 to vertically move and a second conveying assembly 822 driving the mechanical arm 81 to horizontally move, so that the grinding device 5 can conveniently feed and discharge the cross-shaped body 1.
Referring to fig. 10, the first transportation assembly 821 includes a first transportation base 8211, a first transportation screw 8212, and a first transportation motor 8213 driving the first transportation screw 8212 to rotate. Two ends of a first conveying screw rod 8212 are rotatably connected to a first conveying seat 8211, a first conveying motor 8213 is fixed on the first conveying seat 8211, and the first conveying motor 8213 and the first conveying screw rod 8212 are coaxially fixed. Sliding connection has sliding block 9 on the first transportation seat 8211, sliding block 9 and first transport lead screw 8212 threaded connection, and manipulator 81 is fixed in on the sliding block 9, and the length direction of first transport lead screw 8212 is vertical direction.
Referring to fig. 10, the second conveying assembly 822 includes a second conveying base 8221, a second conveying screw 8222, and a second conveying motor 8223 for driving the second conveying screw 8222 to rotate, wherein two ends of the second conveying screw 8222 are rotatably connected to the second conveying base 8221, the second conveying motor 8223 is fixed to the second conveying base 8221, and the second conveying motor 8223 and the second conveying screw 8222 are coaxially fixed. The first conveying seat 8211 is connected to the second conveying seat 8221 in a sliding mode, and the first conveying seat 8211 is in threaded connection with the second conveying screw rod 8222. The second conveyance screw 8222 has a horizontal length direction.
Referring to fig. 1 and 3, a process for manufacturing a high-strength universal joint includes the following steps:
s1, processing the cross body 1 by a grinding device 5 to form a reinforced inclined plane 12;
s2, assembling the needle roller 3 and the oil seal 4 on the inner wall of the shaft sleeve 2;
and S3, sleeving the shaft sleeve 2 on the end part of the cross-shaped body 1.
The implementation principle of the processing technology of the high-strength universal joint in the embodiment of the application is as follows: when the cross-shaped fork body 1 is processed, the mechanical arm 81 is driven by the conveying assembly to clamp and place a workpiece of the cross-shaped fork body 1 on the conveying belt on the cross table 522, the lifting cylinder 631 drives the sliding bottom plate 71 to slide downwards, so that the base plate 521 slides downwards, at the moment, the base plate 521 abuts against the four transmission rods 5312 and drives the first pressing strip 53131, the connecting strip 53132 and the second pressing strip 53133 to rotate towards the direction close to the cross-shaped fork body 1 through the lever principle, and the four ends of the cross-shaped fork body 1 are pressed on the cross table 522 by the four second pressing strips 53133. When the end of the cross-shaped body 1 enters between the two connecting strips 53132, the two connecting strips 53132 also adjust the position of the cross-shaped body 1, so that the cross-shaped body 1 can better correspond to the cross-shaped table 522, and the subsequent polishing knife cylinder 541 can be conveniently aligned to the end of the cross-shaped body 1.
After the cross-shaped fork body 1 is fixed, the polishing knife cylinder 541 is driven by the sliding motor 5432 to slide on the sliding seat 5421 so as to be close to and sleeved on the end part of the cross-shaped fork body 1, and then the polishing knife cylinder 541 is driven by the polishing motor 5422 to rotate so as to process to obtain the reinforced inclined plane 12.
After one end of the cross-shaped fork 1 is machined, the lifting cylinder 631 drives the placing table 52 to ascend, at this time, the abutting force of the chassis 521 on the transmission rod 5312 disappears, the restoring spring 5315 drives the first pressing strip 53131, the connecting strip 53132 and the second pressing strip 53133 to rotate in the direction away from the cross-shaped fork 1, then the placing motor 62 drives the placing table 52 to rotate 90 degrees, so that the other end of the cross-shaped fork 1 is right opposite to the polishing knife cylinder 541, the polishing knife cylinder 541 moves towards the cross-shaped fork 1 again, the end of the second cross-shaped fork 1 is polished, the steps are sequentially circulated until the ends of the four cross-shaped forks 1 are polished, and finally, the placing table 52 ascends to enable the limiting frame 531 not to limit the cross-shaped fork 1 any more, and the cross-shaped fork 1 finishes blanking through the manipulator 81.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (5)
1. A processing technology of a high-strength universal joint comprises a cross-shaped fork body (1) and shaft sleeves (2) sleeved at four end parts of the cross-shaped fork body (1), wherein roller pins (3) are arranged between the inner side wall of each shaft sleeve (2) and the outer wall of the end part of the cross-shaped fork body (1), an oil seal (4) is further arranged on the inner side wall of each shaft sleeve (2), and the oil seal (4) is fixed on one side, facing the center of the cross-shaped fork body (1), of each shaft sleeve (2); the method is characterized in that: an installation ring groove (11) used for accommodating the roller pin (3) is formed in the side wall of the cross-shaped fork body (1), and the installation ring groove (11) penetrates through the end part far away from the center of the cross-shaped fork body (1); the side wall of the mounting ring groove (11) close to the center of the cross-shaped fork body (1) is a reinforced inclined surface (12), the reinforced inclined surface (12) extends towards the direction close to the center of the cross-shaped fork body (1) and away from the axis of the end part of the cross-shaped fork body (1), and the reinforced inclined surface (12) is used for abutting against the oil seal (4);
a chamfer (22) is arranged at the end part of the shaft sleeve (2) far away from the center of the cross-shaped fork body (1), and the chamfer (22) extends along the circumferential direction of the shaft sleeve (2);
the processing technology comprises the following steps:
s1, processing the cross-shaped body (1) by a grinding device (5) to form a reinforcing inclined plane (12);
s2, assembling the needle roller (3) and the oil seal (4) on the inner wall of the shaft sleeve (2);
s3, sleeving the shaft sleeve (2) on the end part of the cross-shaped fork body (1);
the polishing device (5) for polishing the reinforced inclined plane (12) comprises a rack (51), a placing table (52) arranged on the rack (51) and used for placing the cross-shaped fork body (1), a limiting structure (53) used for fixing the cross-shaped fork body (1) on the placing table (52) and a processing mechanism (54) used for processing and forming the reinforced inclined plane (12);
the processing mechanism (54) comprises a polishing knife cylinder (541), a first driving mechanism (542) for driving the polishing knife cylinder (541) to rotate and a second driving mechanism (543) for driving the polishing knife cylinder (541) to be far away from or close to the cross-shaped fork body (1); the polishing knife cylinder (541) is sleeved at the end of the cross fork body (1), the end face, facing the cross fork body (1), of the polishing knife cylinder (541) is a polishing face (5412), the end face faces are close to the cross fork body (1), and the polishing face (5412) is inclined in the direction away from the axis of the polishing knife cylinder (541);
the polishing device (5) further comprises a placing motor (62) for driving the placing table (52) to rotate, a motor shaft of the placing motor (62) is vertically upward, and a motor shaft of the placing motor (62) is fixed at the bottom of the placing table (52);
the cross fork body (1) is flatly placed on the placing table (52), and the limiting structure (53) is used for limiting the cross fork body (1) on the placing table (52);
the top surface of the processing table (512) is provided with a ring table (6), the ring table (6) protrudes out of the top surface of the processing table (512), the center of the ring table (6) is provided with a lifting groove (61) for the placement table (52) to vertically slide, and the polishing device (5) further comprises a lifting device (63) for driving the placement table (52) to lift; the limiting structure (53) comprises four limiting frames (531) which correspond to the four end parts of the cross fork body (1) one by one, and mounting grooves (532) for mounting the limiting frames (531) are formed in the side walls of the lifting groove (61); the limiting frame (531) comprises a connecting rod (5311), a transmission rod (5312) and a pressing part (5313), the middle part of the connecting rod (5311) in the length direction is rotatably connected to the groove wall of the mounting groove (532) through a hinge shaft (5314), the transmission rod (5312) is fixed at the bottom end of the connecting rod (5311), and the length direction of the transmission rod (5312) faces the direction close to the center of the bottom of the placing table (52);
the pressing part (5313) is arranged at the top end of the connecting rod (5311), and the pressing part (5313) is used for pressing the cross-shaped fork body (1) onto the placing table (52); the limiting structure (53) further comprises a recovery spring (5315), and the recovery spring (5315) drives the pressing part (5313) to be separated from the cross fork body (1) on the placing table (52);
when the placing table (52) slides downwards, the bottom of the placing table (52) abuts against a transmission rod (5312), a pressing part (5313) at the top end of the connecting rod (5311) moves towards the center direction of the placing table (52), and when the cross fork body (1) is placed on the placing table (52), the pressing part (5313) presses the cross fork body (1) on the placing table (52);
when the placing table (52) slides upwards, the restoring spring (5315) drives the pressing part (5313) to be separated from the cross-shaped body (1) on the placing table (52).
2. The process of claim 1, wherein the process comprises the following steps: the placing table (52) is provided with a cross positioning groove (523) for positioning the cross body (1).
3. The process of claim 1, wherein the process comprises the following steps: the placing table (52) comprises a base plate (521) and a cross table (522) on the base plate (521), and the cross table (522) is used for placing the cross body (1); the pressing part (5313) comprises two first pressing strips (53131), two connecting strips (53132) and a second pressing strip (53133) which are arranged in parallel;
one ends of the two first pressing strips (53131) are fixed with the top end of the connecting rod (5311), the other ends of the two first pressing strips (53131) correspond to the connecting strips (53132) in a one-to-one correspondence manner, the end parts, far away from the first pressing strips (53131), of the two connecting strips (53132) are connected with the two ends of the second pressing strips (53133) in the length direction, and the second pressing strips (53133) are used for abutting against the cross fork body (1) on the cross table (522); the cross table (522) comprises a central section (5221) and four branch sections (5222) uniformly connected to the periphery of the central section (5221), the width of the top surface of each branch section (5222) is the same as that of the end of the cross fork body (1), the width of the top surface of each branch section (5222) is the same as the distance between two first pressing strips (53131), and the distance from the mounting ring groove (11) to the center of the cross fork body (1) is greater than the distance from each branch section (5222) to the center of the central section (5221).
4. The process of claim 3, wherein the step of machining the high-strength universal joint comprises the following steps: the connecting bar (53132) comprises a fixing section (531321) and a damping spring (531322) which are connected at the ends, the end of the fixing section (531321) is connected with the end, away from the connecting bar (5311), of the first pressing bar (53131), and the end, away from the fixing section (531321), of the damping spring (531322) is connected with the second pressing bar (53133).
5. The process for manufacturing a high-strength universal joint according to claim 1, wherein: the grinding device (5) further comprises a conveying mechanism (8) used for feeding and discharging, the conveying mechanism (8) comprises a mechanical arm (81) and a conveying structure (82) driving the mechanical arm (81) to move, and the mechanical arm (81) is used for clamping the cross fork body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210062500.2A CN114458701B (en) | 2022-01-19 | 2022-01-19 | High-strength universal joint and processing technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210062500.2A CN114458701B (en) | 2022-01-19 | 2022-01-19 | High-strength universal joint and processing technology thereof |
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| CN114458701A CN114458701A (en) | 2022-05-10 |
| CN114458701B true CN114458701B (en) | 2022-09-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115126791B (en) * | 2022-08-31 | 2022-11-18 | 万向钱潮股份公司 | Lightweight cross axle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000046062A (en) * | 1998-07-27 | 2000-02-15 | Toyoda Mach Works Ltd | Tripod constant velocity universal joint and roller for it |
| CN202274002U (en) * | 2011-10-13 | 2012-06-13 | 杭州杰克万向节有限公司 | High-strength universal joint assembly |
| CN104455537B (en) * | 2014-11-26 | 2017-11-03 | 东莞信柏结构陶瓷股份有限公司 | Center ceramic valve ball processing unit (plant) with holes |
| CN108679109A (en) * | 2018-05-31 | 2018-10-19 | 湖北忠诚机械制造股份有限公司 | High intensity universal joint assembly |
| CN109227293A (en) * | 2018-10-17 | 2019-01-18 | 宁波市江北欣盛数控机械有限公司 | A kind of automatic loading and unloading system of cross workpiece grinding machine |
| CN211852547U (en) * | 2020-04-03 | 2020-11-03 | 台州品佳汽配有限公司 | Cross axle universal joint |
| CN215201063U (en) * | 2021-05-21 | 2021-12-17 | 江苏金也汽车配件有限公司 | Surface grinding device is used in cross axle processing |
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