Pin shaft circumferential grinding machining device

Abstract

The utility model relates to the technical field of pin shaft machining, and discloses a pin shaft circumferential grinding machining device which comprises a bottom plate, the left side of the top end of the bottom plate is fixedly connected with a first motor, the driving end of the first motor is fixedly connected with a reciprocating lead screw, and the left side of the outer wall of the reciprocating lead screw is in threaded connection with a sliding block. A sliding rail is fixedly connected to the top end of the bottom plate, limiting blocks are fixedly connected to the left side and the right side of the top end of the sliding rail, a fixing block is fixedly connected to the right side of the top end of the bottom plate, a fixing ring is fixedly connected to the top end of the fixing block, and a sleeve is rotationally connected to the inner wall of the fixing ring; a plurality of second electric push rods are fixedly connected to the inner wall of the sleeve. According to the pin shaft polishing device, the polishing distance is set in advance according to the needed size of a pin shaft, size errors caused by excessive polishing are prevented, and meanwhile the surface of the pin shaft can be evenly polished through cooperation with the reciprocating lead screw.

Description

Technical Field

[0001] The utility model relates to the technical field of pin shaft processing, in particular to a pin shaft circumferential grinding processing device. Background Art

[0002] Pins are a type of standardized fasteners that can be used for static fixed connections or for relative movement with the connected parts. They are mainly used at the hinges of two parts to form hinge connections. Pins need to be polished during processing. Currently, pins are usually polished manually or with polishing equipment, and manual polishing results in inconsistent polishing quality.

[0003] After searching, a grinding device for pin processing with announcement number CN215700269U comprises a base, a bearing is fixedly installed on one side of the top of the base through a supporting column, a grinding cylinder is rotatably connected inside the bearing, a grinding assembly is arranged inside the grinding cylinder, a transmission gear is fixedly arranged on the surface of the grinding cylinder, a driving motor is fixedly installed on one side of the base through a fixing frame, a connecting gear meshing with the transmission gear is fixedly arranged on the transmission shaft of the driving motor, and a clamping cylinder is connected to the top of the base through a moving assembly. The beneficial effects of the utility model are as follows: three clamping plates can be driven to move by the three clamping cylinders, so as to clamp and fix the ends of pins of different sizes, and the moving assembly is convenient to drive the clamping cylinder to move; the three grinding blocks in the grinding assembly can always contact with the surface of the pin under the action of the connecting spring, so as to grind the surface of the pin by the three grinding blocks;

[0004] Based on the above patent, the three grinding blocks in the grinding assembly can always contact with the surface of the pin under the action of the connecting spring, so that the surface of the pin is ground by using the three grinding blocks. However, since the three grinding blocks are always in contact with the surface of the pin, the grinding thickness is fixed. When grinding a large-sized pin, excessive grinding may cause pin size errors. If the pin is pulled out after grinding to a certain size, because the grinding block is always in contact with the surface of the pin, the part of the pin that is pulled out later will be polished more, which may cause one end of the pin to become conical and the grinding accuracy is not high. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a pin shaft circumferential grinding processing device is proposed, which can set the grinding distance in advance according to the required size of the pin shaft to prevent dimensional errors caused by excessive grinding, and at the same time, the pin shaft surface can be evenly ground in conjunction with a reciprocating screw.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The top of the bottom plate is fixedly connected to a slide rail, and the left and right sides of the top of the slide rail are fixedly connected to limit blocks, the right side of the top of the bottom plate is fixedly connected to a fixed block, the top of the fixed block is fixedly connected to a fixed ring, the inner wall of the fixed ring is rotatably connected to a sleeve, and the inner wall of the sleeve is fixedly connected to a plurality of electric push rods two, the driving ends of the two electric push rods are fixedly connected to an arc grinding plate, the outward ends of the two electric push rods are fixedly connected to a support frame two, and the inward ends of the two support frames are fixedly connected to the outer wall of the sleeve, the top of the bottom plate is connected to a driven shaft through a driving assembly, and the inner wall of the sleeve is connected to a fan through a cleaning assembly.

[0008] Furthermore, the clamping assembly includes a hollow cylinder fixedly connected to the top of the slider, a plurality of electric push rods are fixedly connected to the inner wall of the hollow cylinder, the outward end of the pressure plate is fixedly connected to the driving end of the electric push rod, the outward end of the electric push rod is fixedly connected to a support frame, and the inward end of the support frame is fixedly connected to the outer wall of the hollow cylinder.

[0009] Furthermore, the driving assembly includes a second motor fixedly connected to the top of the base plate, the driving end of the second motor is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a second pulley, the outer wall of the second pulley is connected to a first pulley via a belt, and the inner wall of the first pulley is fixedly connected to the outer wall of the driven shaft.

[0010] Furthermore, the cleaning assembly includes a collecting pipe rotatably connected to the inner wall of the sleeve, the other end of the collecting pipe is fixedly connected to a collecting box, a box door is provided at the front end of the collecting box, and the right end of the fan is inserted into the left end of the collecting box.

[0011] Furthermore, the bottom end of the sliding block is slidably connected to the top end of the sliding rail.

[0012] Furthermore, the left and right sides of the outer wall of the reciprocating screw rod are rotatably connected to the inner wall of the limit block respectively, and the right end of the reciprocating screw rod is rotatably connected to the left end of the fixed block.

[0013] Furthermore, the left end of the driven shaft is fixedly connected to the right end of the sleeve.

[0014] Furthermore, the outer wall of the collecting tube is rotatably connected to the inner wall of the driven shaft.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the electric push rod 2 cooperates with the motor 1, the reciprocating screw, the slide rail, the sleeve, the support frame 2 and the arc-shaped grinding plate to realize that the device can set the grinding distance in advance according to the required size of the pin shaft to prevent dimensional errors caused by excessive grinding. At the same time, the reciprocating screw can be used to evenly grind the surface of the pin shaft.

[0017] 2. In the utility model, the collection tube cooperates with the collection box, the box door and the fan, so that the device can collect the debris generated during the grinding process to prevent the debris from flying around and affecting the environment or causing harm to the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a pin circumferential grinding processing device proposed by the utility model;

[0019] Figure 2 This is a right side stereogram of a pin circumferential grinding processing device proposed by the utility model;

[0020] Figure 3 The utility model is a cross-sectional view of a sleeve in a pin circumferential grinding processing device.

[0021] Legend:

[0022] 1. Bottom plate; 2. Motor 1; 3. Limit block; 4. Pressure plate; 5. Hollow cylinder; 6. Reciprocating screw; 7. Slide rail; 8. Sleeve; 9. Fixed ring; 10. Collecting tube; 11. Rotating shaft; 12. Motor 2; 13. Fixed block; 14. Collecting box; 15. Box door; 16. Sliding block; 17. Fan; 18. Support frame 1; 19. Electric push rod 1; 20. Driven shaft; 21. Pulley 1; 22. Pulley 2; 23. Support frame 2; 24. Electric push rod 2; 25. Arc grinding plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-3, the utility model provides an embodiment: a pin shaft circumferential grinding processing device, including a base plate 1, a motor 2 is fixedly connected to the left side of the top of the base plate 1, a reciprocating screw 6 is fixedly connected to the driving end of the motor 2, a slider 16 is threadedly connected to the left side of the outer wall of the reciprocating screw 6, the bottom end of the slider 16 is slidably connected to the top of the slide rail 7, the top of the slider 16 is fixedly connected to a hollow cylinder 5, the inner wall of the hollow cylinder 5 is fixedly connected to a plurality of electric push rods 19, the driving ends of the electric push rods 19 are all fixedly connected to a pressure plate 4, the outward ends of the electric push rods 19 are all fixedly connected to a support frame 18, the inward ends of the support frame 18 are all fixedly connected to the outer wall of the hollow cylinder 5, the top of the base plate 1 A slide rail 7 is fixedly connected, and the left and right sides of the top of the slide rail 7 are fixedly connected to the limit block 3, and the right side of the top of the bottom plate 1 is fixedly connected to the fixed block 13. The left and right sides of the outer wall of the reciprocating screw rod 6 are respectively rotatably connected to the inner wall of the limit block 3, and the right end of the reciprocating screw rod 6 is rotatably connected to the left end of the fixed block 13. A fixing ring 9 is fixedly connected to the top of the fixed block 13, and a sleeve 8 is rotatably connected to the inner wall of the fixing ring 9. A plurality of electric push rods 24 are fixedly connected to the inner wall of the sleeve 8, and the driving ends of the electric push rods 24 are fixedly connected to the arc-shaped grinding plates 25. The outward ends of the electric push rods 24 are fixedly connected to the support frames 23, and the inward ends of the support frames 23 are fixedly connected to the outer wall of the sleeve 8;

[0025] Specifically, the pin to be polished is placed in the hollow cylinder 5, and the pressure plate 4 is pushed by the electric push rod 19 to make the pressure plate 4 fit against the outer wall of the pin. The pin can be clamped to be suitable for pins of different sizes. Then, according to the required dimensional accuracy of the pin, the electric push rod 24 is started to push the arc polishing plate 25 to adjust the distance between the arc polishing plate 25 and the sleeve 8 to control the polishing thickness and improve the polishing accuracy so that the pin size will not meet the standard due to excessive polishing. Then, the motor 2 is started to drive the reciprocating screw 6 to rotate and the slider 16 to reciprocate on the slide rail 7, so that the surface of the pin can be evenly polished by the arc polishing plate 25 to avoid uneven polishing due to the length of the arc polishing plate 25.

[0026] The top of the bottom plate 1 is fixedly connected with a motor 2 12, the driving end of the motor 2 12 is fixedly connected with a rotating shaft 11, the outer wall of the rotating shaft 11 is fixedly connected with a pulley 2 22, the outer wall of the pulley 2 22 is connected with a pulley 1 21 through a belt, the inner wall of the pulley 1 21 is fixedly connected with a driven shaft 20, the left end of the driven shaft 20 is fixedly connected to the right end of the sleeve 8, the inner wall of the sleeve 8 is rotatably connected with a collecting pipe 10, the outer wall of the collecting pipe 10 is rotatably connected to the inner wall of the driven shaft 20, the other end of the collecting pipe 10 is fixedly connected with a collecting box 14, the front end of the collecting box 14 is provided with a box door 15, and the left end of the collecting box 14 is penetrated with a fan 17;

[0027] Specifically, the starting motor 12 drives the rotating shaft 11 to rotate. Under the cooperation of the pulley 22 and the pulley 1 21, the driven shaft 20 follows the rotating shaft 11 to rotate, and the sleeve 8 rotates to drive the arc-shaped grinding plate 25 to rotate around the center point of the sleeve 8 to grind the pin shaft. During the grinding process, the air inside the collection box 14 is extracted through the fan 17 to form a negative pressure inside the fan 17. Under the cooperation of the collection pipe 10, the debris generated by grinding inside the sleeve 8 is sucked into the collection box 14 and then cleaned by regularly opening the box door 15 to prevent the debris from flying and polluting the environment. A filter is provided at the exhaust pipe end of the fan 17 to prevent debris from entering and damaging the fan 17.

[0028] Working principle: put the pin to be polished into the hollow cylinder 5, push the pressure plate 4 through the electric push rod 19 to make the pressure plate 4 fit the outer wall of the pin, clamp the pin and it can be applied to pins of different sizes, then start the electric push rod 24 to push the arc polishing plate 25 according to the required size accuracy of the pin to adjust the distance between the arc polishing plate 25 and the sleeve 8 to control the polishing thickness and improve the polishing accuracy so that the pin size will not meet the standard when it is over-polished, then start the motor 2 to drive the reciprocating screw 6 to rotate and make the slider 16 reciprocate on the slide rail 7, so that the pin surface can be evenly polished by the arc polishing plate 25 to avoid being affected by the length of the arc polishing plate 25. The grinding can be uneven, and the starting motor 12 drives the rotating shaft 11 to rotate. Under the cooperation of the pulley 22 and the pulley 1 21, the driven shaft 20 follows the rotating shaft 11 to rotate, and the sleeve 8 rotates to drive the arc-shaped grinding plate 25 to rotate around the center point of the sleeve 8 to grind the pin shaft. During the grinding process, the air inside the collection box 14 is extracted through the fan 17 to form a negative pressure inside the fan 17. Under the cooperation of the collection pipe 10, the debris generated by grinding inside the sleeve 8 is sucked into the collection box 14 and then cleaned by regularly opening the box door 15 to prevent the debris from flying and polluting the environment. A filter is provided at the exhaust pipe end of the fan 17 to prevent the debris from entering and damaging the fan 17.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pin circumferential grinding processing device, comprising a base plate (1), characterized in that: The left side of the top of the base plate (1) is fixedly connected to a motor 1 (2), the driving end of the motor 1 (2) is fixedly connected to a reciprocating screw rod (6), the left side of the outer wall of the reciprocating screw rod (6) is threadedly connected to a slider (16), the top of the slider (16) is connected to a pressure plate (4) through a clamping assembly, the top of the base plate (1) is fixedly connected to a slide rail (7), the left and right sides of the top of the slide rail (7) are fixedly connected to a limiting block (3), the right side of the top of the base plate (1) is fixedly connected to a fixed block (13), the top of the fixed block (13) is fixedly connected to a fixed ring (9 ), the inner wall of the fixing ring (9) is rotatably connected to a sleeve (8), the inner wall of the sleeve (8) is fixedly connected to a plurality of electric push rods (24), the driving ends of the electric push rods (24) are fixedly connected to arc-shaped grinding plates (25), the outward ends of the electric push rods (24) are fixedly connected to support frames (23), the inward ends of the support frames (23) are fixedly connected to the outer wall of the sleeve (8), the top end of the bottom plate (1) is connected to a driven shaft (20) through a driving assembly, and the inner wall of the sleeve (8) is connected to a fan (17) through a cleaning assembly.

2. A pin circumferential grinding device according to claim 1, characterized in that: The clamping assembly comprises a hollow cylinder (5) fixedly connected to the top of the slider (16); a plurality of electric push rods (19) are fixedly connected to the inner wall of the hollow cylinder (5); the outward ends of the pressure plates (4) are fixedly connected to the driving ends of the electric push rods (19); the outward ends of the electric push rods (19) are fixedly connected to the support frame (18); and the inward ends of the support frame (18) are fixedly connected to the outer wall of the hollow cylinder (5).

3. A pin circumferential grinding device according to claim 1, characterized in that: The driving assembly comprises a second motor (12) fixedly connected to the top of the base plate (1), a driving end of the second motor (12) fixedly connected to a rotating shaft (11), an outer wall of the rotating shaft (11) fixedly connected to a second pulley (22), an outer wall of the second pulley (22) connected to a first pulley (21) via a belt, and an inner wall of the first pulley (21) fixedly connected to the outer wall of the driven shaft (20).

4. A pin circumferential grinding device according to claim 1, characterized in that: The cleaning assembly comprises a collection pipe (10) rotatably connected to the inner wall of the sleeve (8); the other end of the collection pipe (10) is fixedly connected to a collection box (14); a box door (15) is provided at the front end of the collection box (14); and the right end of the fan (17) is inserted into the left end of the collection box (14).

5. The pin circumferential grinding device according to claim 1, characterized in that: The bottom end of the slide block (16) is slidably connected to the top end of the slide rail (7).

6. A pin circumferential grinding device according to claim 1, characterized in that: The left and right sides of the outer wall of the reciprocating screw rod (6) are rotatably connected to the inner wall of the limit block (3) respectively, and the right end of the reciprocating screw rod (6) is rotatably connected to the left end of the fixed block (13).

7. A pin circumferential grinding device according to claim 3, characterized in that: The left end of the driven shaft (20) is fixedly connected to the right end of the sleeve (8).

8. A pin circumferential grinding device according to claim 4, characterized in that: The outer wall of the collecting pipe (10) is rotatably connected to the inner wall of the driven shaft (20).

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