Universal joint pin surface grinding and edge cutting all-in-one machine

Abstract

The invention discloses a universal joint pin face grinding and edge cutting all-in-one machine in the technical field of face grinding and edge cutting machining, the universal joint pin face grinding and edge cutting all-in-one machine comprises a face grinding part, an edge cutting part and a connecting part, the face grinding part comprises a face grinding table, a double-disc grinding head and a face grinding rotary disc are rotationally installed at the top of the face grinding table, face grinding holes are evenly distributed in the circumference of the top of the face grinding rotary disc, and a face grinding gasket is fixedly connected to the top of the face grinding table; the connecting part comprises a receiving slide way and a conveying slide way which are connected end to end, the top of the conveying slide way is fixedly connected with a protective plate, the front end of the protective plate is fixedly connected with a tilted pressing piece, and a conveying hole is formed in the tail end of the conveying slide way; the edge cutting part comprises an edge cutting table, an edge cutting die and a cushion table are fixedly mounted at the top of the edge cutting table, a push plate is slidably connected to the top of the cushion table, a transfer hole is formed in the end of the push plate, and a punching head is mounted at the top of the edge cutting table; according to the integrated automatic machining process of double-face grinding and punching edge removing, the whole equipment is simple and convenient, and the machining efficiency and the machining quality are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding and trimming of cross shafts, and specifically relates to an integrated machine for grinding and trimming cross shafts. Background Art

[0002] A cross shaft generally refers to a universal joint, that is, a universal joint, which is a mechanical part for realizing power transmission at a variable angle and is used in positions where the direction of the transmission axis needs to be changed and is used as a joint part for various drive systems. The production and manufacturing of cross shafts generally involve casting first, then grinding and trimming, and then other fine processing; when casting cross shafts, it is generally top and bottom die casting, so there will be burrs at the mold joint, and the upper and lower end faces are relatively rough. Therefore, grinding is for the upper and lower surfaces, and trimming is for the periphery of the middle part of the cross shaft; because the processing positions and types are different, most of the grinding and trimming are carried out separately, which makes the processing process more complicated, the efficiency is low, and the transportation process is also more labor-consuming.

[0003] Based on this, the present invention designs an integrated machine for grinding and trimming cross shafts to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated machine for grinding and trimming cross shafts to solve the problems of separate grinding and trimming as mentioned in the above background art, which makes the processing process more complicated, the efficiency is low, and the transportation process is also more labor-consuming.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: It includes a grinding part, a trimming part, and a connecting part. The grinding part includes a grinding table, on the top of which a double-disc grinding head and a grinding turntable are rotatably installed. Grinding holes are evenly distributed in a circle on the top of the grinding turntable. A grinding washer is fixedly connected to the top of the grinding table. The grinding washer is located below the grinding turntable and is used to support the cross shaft. The double-disc grinding head is located on the side of the grinding turntable and is used to grind the cross shaft. The connecting part includes a feeding chute and a conveying chute connected end to end. A guard plate is fixedly connected to the top of the conveying chute. A tilted pressing piece is fixedly connected to the front end of the guard plate. A conveying hole is opened at the tail end of the conveying chute. The trimming part includes a trimming table, on the top of which a trimming die and a cushion table are fixedly installed. A push plate is slidably connected to the top of the cushion table. A transfer hole is opened at the end of the push plate. The push plate is located between the conveying chute and the cushion table and is used to transfer the cross shaft into the trimming die through the transfer hole. A punching head is installed on the top of the trimming table, and the punching head matches the trimming die.

[0006] As a further solution of the present invention, a grinding motor is installed at the bottom of the grinding table, and the output end of the grinding motor is fixedly connected to the double-disc grinding head. A relief groove is opened at the top of the grinding washer. The lower grinding disc of the double-disc grinding head is located in the relief groove and at the bottom of the grinding turntable, and the upper grinding disc of the double-disc grinding head is located above the grinding turntable.

[0007] As a further solution of the present invention, the thickness of the grinding turntable is smaller than the height of the cross shaft, and the grinding hole shape matches the cross shaft, and the hole surface of the grinding hole is larger at the top and smaller at the bottom.

[0008] As a further solution of the present invention, a discharge window is provided on the top of the grinding washer, and the discharge window is located above the material receiving slideway, and the material receiving slideway is in the shape of an inverted trapezoid.

[0009] As a further solution of the present invention, a connecting frame is fixedly connected to the top of the trimming table, a vibrator is installed on the top of the connecting frame, the vibrator is located at the bottom of the conveying slide, the conveying slide is inclined, and the width of the conveying slide is equal to the distance between the widest parts of the two axes connected by the cross axis.

[0010] As a further solution of the present invention, an axle frame is fixedly connected to the top of the grinding table, a driving motor is installed on the top of the axle frame, an outer gear ring is fixedly connected to the top of the grinding turntable, a driving gear is fixedly installed on the output end of the driving motor, the driving gear is located on the side of the outer gear ring and meshes with it, a guide frame is fixedly installed on the inner side of the axle frame, and the output end of the driving motor passes through the guide frame to rotate with it.

[0011] As a further solution of the present invention, a discharge chute is fixedly connected to the bottom of the trimming table, and the trimming hole of the trimming mold is a through hole and is located above the discharge chute.

[0012] As a further solution of the present invention, the original conveying hole is located directly above the transfer hole and the two are equal, the top of the pad and the trimming mold are provided with interconnected bottom slide grooves, the bottom of the push plate is fixedly connected with a slide bar, and the slide bar is located in the bottom slide groove and the two slide in cooperation.

[0013] As a further solution of the present invention, a push cylinder is fixedly installed on the top of the trimming table, and a push rod is fixedly connected to the output end of the push cylinder, and the push rod is fixedly connected to the push plate.

[0014] As a further solution of the present invention, a mounting platform is fixedly connected to the top of the trimming platform, a punching cylinder is installed on the top of the mounting platform, and an output end of the punching cylinder passes through the mounting platform and is fixedly connected to the punching head.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The upper and lower grinding discs of the double-disc grinding head are used to grind the upper and lower surfaces of the cross-axis workpiece at the same time, thereby achieving double-sided grinding at the same time.

[0016] Through the connection between the material receiving slide and the conveying slide and the adjustment and limitation of the cross shaft during the conveying process, the cross shaft can be smoothly and automatically transported from the grinding surface to the cutting edge, achieving smooth and automatic connection.

[0017] The punching cylinder drives the punching head to move down quickly into the trimming die, and then the burrs of the cross shaft are punched and trimmed to achieve automatic trimming; the integrated automated processing of double-sided grinding and punching and trimming makes the overall equipment simple and convenient, which greatly improves the processing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention from a front side perspective; Figure 2 It is a schematic diagram of the overall structure of the present invention from a rear side perspective; Figure 3 It is a schematic diagram of the overall structure of the present invention from a side perspective; Figure 4 It is a schematic diagram of the overall structure of the present invention from a front and side perspective; Figure 5 It is a half-section schematic diagram of the overall structure of the present invention at the conveying slideway from a top view; Figure 6 A schematic diagram of the cross shaft adapted for processing in the present invention in the conveying slideway; Figure 7 This is a schematic diagram of the cross shaft adapted for processing according to the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Grinding table; 2. Double-disc grinding head; 3. Grinding turntable; 4. Grinding hole; 5. Grinding gasket; 6. Material receiving slide; 7. Conveying slide; 8. Guard plate; 9. Pressing sheet; 10. Conveying hole; 11. Trimming table; 12. Trimming die; 13. Pad; 14. Push plate; 15. Adapter hole; 16. Punching head; 17. Grinding motor; 18. Make way slot; 19. Discharging window; 20. Connecting frame; 21. Vibrator; 22. Shaft frame; 23. Driving motor; 24. Outer gear ring; 25. Driving gear; 26. Guide frame; 27. Discharging slide; 28. Bottom slide; 29. ​​Push cylinder; 30. Push rod; 31. Mounting table; 32. Punching cylinder. DETAILED DESCRIPTION

[0020] See also Figure 1-7 The working principle of the technical solution provided by the present invention is as follows: the cast cross-axis workpiece is placed one by one according to the hole position of the grinding hole 4 through a screening machine or manual methods, and the driving gear 25 is driven to rotate by the grinding motor 17, and then the outer gear ring 24 is driven to rotate together with the grinding turntable 3 through the gear transmission, and then the cross-axis workpiece in the grinding hole 4 is limitedly transported to the double-disc grinding head 2, and the upper and lower surfaces of the cross-axis workpiece are polished simultaneously by the upper and lower grinding discs of the double-disc grinding head 2, thereby achieving simultaneous double-sided grinding.

[0021] The polished workpiece moves to the tail end of the grinding washer 5 under the rotation of the grinding turntable 3, falls through the discharge window 19, and falls into the receiving chute 6. Since the receiving chute 6 is an inclined chute, the cross shaft slides down automatically. If a corner of the cross shaft that falls slightly off the position will be placed on the outer edge of the receiving chute 6, thereby tilting up. During the sliding process, if one end of the cross shaft tilts up, it will be smoothly pressed down and adjusted to enter the conveying chute 7 when passing through the pressing sheet 9. Please refer to Figure 6 Since the width of the conveying slideway 7 is designed to be exactly equal to the widest part between the adjacent axes of the cross shaft, the tilted axis can only slide down at a set angle when it falls and the horizontal axis enters the conveying slideway 7, thereby limiting the position of the cross shaft during the sliding process, so that the cross shaft can smoothly and unbiasedly enter the conveying hole 10; at the same time, the conveying slideway 7 also has an inclination angle, which cooperates with the vibration of the vibrator 21 to make the cross shaft slide smoothly and quickly. Through the connection between the material receiving slideway 6 and the conveying slideway 7 and the adjustment and limitation of the cross shaft during the conveying process, the cross shaft can smoothly and automatically be transported from the grinding surface to the cutting edge, achieving smooth and automatic connection.

[0022] The cross shaft entering the conveying slide 7 finally enters the conveying hole 10 and then smoothly falls into the connecting hole 15 connected thereto. By connecting the push cylinder 29, the push rod 30 drives the push plate 14 to extend, and then the cross shaft located in the connecting hole 15 is smoothly sent to the trimming mold 12. Since the cross shafts cast in the upper and lower molds will have burrs except in the middle seam, and the size of the hole of the trimming mold 12 is smaller than the cross shaft with burrs, the cross shaft will fall and stay in the trimming mold 12, and then the punching head 16 is driven by the punching cylinder 32 to move down quickly into the trimming mold 12, and then the burrs of the cross shaft are punched and removed, realizing automatic edge removal, and then it falls into the discharge slide 27 and is transported out.

[0023] Then, the automatic transportation of the cross shaft is realized through the grinding part, the trimming part and the connecting part. The double-sided grinding and punching and trimming are integrated into an automated processing process. The overall equipment is simple and convenient, which greatly improves the processing efficiency and quality.

[0024] Among them, the grinding gasket 5 is located at the bottom of the grinding turntable 3 outside the double-disk grinding head 2 to support the cross shaft in the grinding hole 4 to prevent it from falling; at the same time, the design of the grinding hole 4 with a larger top and a smaller bottom can also make it easy for the cross shaft to enter and stay in a suitable position during the grinding process, avoiding bumping when just entering the double-disk grinding head 2 and being processed at the same time. At the same time, the grinding hole 4 with a shape matching that of the cross shaft can prevent the cross shaft from rotating during the grinding process.

Claims

1. A cross-axis grinding and trimming integrated machine, comprising a grinding portion, a trimming portion and a connecting portion, characterized in that: The grinding portion comprises a grinding table (1), a double-disc grinding head (2) and a grinding turntable (3) are rotatably mounted on the top of the grinding table (1), a grinding hole (4) is evenly distributed on the circumference of the top of the grinding turntable (3), a grinding washer (5) is fixedly connected to the top of the grinding table (1), the grinding washer (5) is located below the grinding turntable (3) and is used to support a cross shaft, and the double-disc grinding head (2) is located on the side of the grinding turntable (3) and is used to grind the cross shaft; The connecting portion comprises a material receiving slide (6) and a conveying slide (7) connected head to tail, a guard plate (8) is fixedly connected to the top of the conveying slide (7), a raised pressing sheet (9) is fixedly connected to the front end of the guard plate (8), and a conveying hole (10) is opened at the tail end of the conveying slide (7); The trimming section comprises a trimming table (11), a trimming die (12) and a pad (13) are fixedly mounted on the top of the trimming table (11), a push plate (14) is slidably connected to the top of the pad (13), a transfer hole (15) is provided at the end of the push plate (14), the push plate (14) is located between the conveying slideway (7) and the pad (13) and is used to transfer the cross shaft to the trimming die (12) through the transfer hole (15), and a punching head (16) is mounted on the top of the trimming table (11), and the punching head (16) matches the trimming die (12).

2. The cross-axis grinding and trimming integrated machine according to claim 1, characterized in that: A grinding motor (17) is installed at the bottom of the grinding table (1), and the output end of the grinding motor (17) is fixedly connected to the double-disc grinding head (2). A clearance groove (18) is opened on the top of the grinding gasket (5). The lower grinding disc of the double-disc grinding head (2) is located in the clearance groove (18) and at the bottom of the grinding turntable (3), and the upper grinding disc of the double-disc grinding head (2) is located above the grinding turntable (3).

3. The cross-axis grinding and trimming integrated machine according to claim 2, characterized in that: The thickness of the grinding rotating disk (3) is smaller than the height of the cross shaft, and the grinding hole (4) matches the shape of the cross shaft, and the hole surface of the grinding hole (4) is larger at the top and smaller at the bottom.

4. The cross-axis grinding and trimming integrated machine according to claim 1, characterized in that: A material discharge window (19) is provided on the top of the grinding washer (5), and the material discharge window (19) is located above the material receiving slideway (6), and the material receiving slideway (6) is in the shape of an inverted trapezoid.

5. The cross-axis grinding and trimming integrated machine according to claim 1, characterized in that: A connecting frame (20) is fixedly connected to the top of the trimming table (11), a vibrator (21) is installed on the top of the connecting frame (20), and the vibrator (21) is located at the bottom end of the conveying slide (7). The conveying slide (7) is inclined, and the width of the conveying slide (7) is equal to the distance between the widest parts of the two axes connected by the cross axis.

6. The cross-axis grinding and trimming integrated machine according to claim 1, characterized in that: The top of the grinding table (1) is fixedly connected to an axle frame (22), the top of the axle frame (22) is equipped with a driving motor (23), the top of the grinding turntable (3) is fixedly connected to an outer gear ring (24), the output end of the driving motor (23) is fixedly equipped with a driving gear (25), the driving gear (25) is located on the side of the outer gear ring (24) and meshes with the outer gear ring (24), and a guide frame (26) is fixedly installed on the inner side of the axle frame (22), and the output end of the driving motor (23) passes through the guide frame (26) and rotates with the guide frame (26).

7. The cross-axis grinding and trimming integrated machine according to claim 1, characterized in that: The bottom of the trimming table (11) is fixedly connected to a discharge chute (27), and the trimming hole of the trimming mold (12) is a through hole and is located above the discharge chute (27).

8. The cross-axis grinding and trimming integrated machine according to claim 1, characterized in that: In the original state, the transmission hole (10) is located directly above the transfer hole (15) and the two are equal. The top of the pad (13) and the trimming mold (12) are provided with a communicating bottom slide groove (28). The bottom of the push plate (14) is fixedly connected with a slide bar, and the slide bar is located in the bottom slide groove (28) and the two are slidably matched.

9. The cross-axis grinding and trimming integrated machine according to claim 1, characterized in that: A push cylinder (29) is fixedly mounted on the top of the trimming table (11), a push rod (30) is fixedly connected to the output end of the push cylinder (29), and the push rod (30) is fixedly connected to the push plate (14).

10. The cross-axis grinding and trimming integrated machine according to claim 1, characterized in that: The top of the trimming table (11) is fixedly connected to a mounting table (31), a punching cylinder (32) is mounted on the top of the mounting table (31), and the output end of the punching cylinder (32) passes through the mounting table (31) and is fixedly connected to the punching head (16).

Images