Chamfer rolling device

Abstract

The utility model relates to the field of chamfering and rolling, in particular to a chamfering and rolling device which comprises a machine frame, rotating rollers are rotationally connected to the two sides in the machine frame through bearings, a conveying belt is connected to the surfaces of the rotating rollers in a sleeved mode, a piston pin is arranged on the upper portion of the conveying belt, and an installation frame is connected to the front portion of the machine frame in a bolted mode. A rectangular groove is formed in the center of the mounting frame, a discharging box is arranged on the inner side of the rectangular groove, a shell is bolted to the front portion of the mounting frame, a lead screw is rotationally connected to the inner side of an inner cavity of the shell through a bearing, and threaded sleeves are rotationally connected to the two sides of the surface of the lead screw through bearings. According to the chamfering and rolling device, the chamfering devices are arranged at the two ends of the mounting frame respectively through the mounting frame, the rectangular groove, the discharging box, the shell, the lead screw, the threaded sleeve, the connecting rod, the bearing groove and the like, so that synchronous full-automatic machining of the two ends of a piston pin is achieved, and the machining efficiency of the piston pin is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of chamfer rolling, and particularly relates to a chamfer rolling device. Background Art

[0002] The guiding effect of the outer circle chamfer of the piston pin directly affects the assembly quality. Most pistons are made of aluminum alloy, and the strength of the aluminum alloy is relatively low. The quality of the outer circle chamfer of the piston pin may cause scratches on the piston pin hole during assembly. The outer circle chamfer of the piston pin has single angle, double angle and triple angle. Domestic piston pin production enterprises all adopt mechanical processing forms such as turning and grinding to achieve it. The chamfer sizes and angles processed by these methods are unstable, and the processing efficiency is low.

[0003] After retrieval, the piston pin outer circle chamfer rolling processing device with the publication number of CN201921511249.3 specifically discloses an installation cover and a driving motor. A transmission shaft is connected in the installation cover through a transmission mechanism. A grinding wheel is fixedly sleeved on the transmission shaft. Both opposite inner walls of the installation cover are connected with moving seats through adjusting mechanisms. A connecting plate is fixedly connected to one side of the two moving seats facing each other. The lower end of the transmission shaft is rotatably connected to the upper side of the connecting plate. Through the cooperation of the transmission mechanism and the clamping mechanism, the piston pin can be clamped. At this time, the driving motor rotates to drive the worm to rotate, the worm rotates to drive the worm wheel to rotate, the worm wheel rotates to drive the transmission shaft to rotate, the transmission shaft rotates to drive the grinding wheel to rotate, and the grinding wheel rotates to polish the burrs of the outer circle chamfer of the piston pin, so that the outer circle chamfer of the piston pin is relatively smooth, and the wear degree of the piston pin hole can be delayed.

[0004] However, the above device still has certain defects. For example, in the prior art, when chamfering the piston pin, the chamfer of one end of the piston pin is mostly carried out first, and then the piston pin is taken off and rotated 180 degrees to chamfer the other end of the piston pin. It cannot realize automatic loading and unloading, cannot automatically realize the clamping and positioning of the piston pin, and has low processing efficiency, which is not conducive to large-scale automated production.

[0005] Therefore, it is very necessary to invent a chamfer rolling device to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a chamfer rolling device which can effectively solve the above technical problems.

[0007] To achieve the above object, the utility model provides the following technical solution: A chamfer rolling device, including a frame, both sides inside the frame are rotatably connected with rotating rollers through bearings, a conveyor belt is sleeved on the surface of the rotating rollers, a piston pin is arranged on the upper part of the conveyor belt, a mounting frame is bolted to the front of the frame, a rectangular groove is opened in the center of the mounting frame, a blanking box is arranged inside the rectangular groove, a housing is bolted to the front of the mounting frame, a lead screw is rotatably connected to the inside of the housing cavity through a bearing, both sides of the surface of the lead screw are rotatably connected with threaded sleeves through bearings, a connecting rod is hinged to the rear of the threaded sleeve, the other end of the connecting rod is hinged to a receiving groove, a fixing rod is bolted to the center of the housing cavity, and the surface of the fixing rod is slidably connected with the inside of the receiving groove, a first cylinder is bolted to the right side of the rear of the frame, and a push plate is bolted to the front of the first cylinder.

[0008] Preferably, second hydraulic cylinders are bolted to both sides of the front of the mounting frame, driving motors are bolted to the inside of the second hydraulic cylinders, a rolling wheel is bolted to the output end of the driving motor. Taking the second hydraulic cylinder as the first driving source, the driving motor and the rolling wheel are moved inward by the thrust until the surface of the rolling wheel enters the inside of the piston pin, and then the driving motor drives the rolling wheel to rotate, improving the rolling efficiency of the rolling device.

[0009] Preferably, limiting slide rails are bolted to both sides of the front of the mounting frame, sliders are slidably connected to the inside of the limiting slide rails, and the outside of the driving motor is bolted to the inside of the sliders, so that the driving motor can horizontally move inside the limiting slide rails when pushed by the second hydraulic cylinder, limiting the moving path of the driving motor.

[0010] Preferably, a servo motor is bolted to the right side of the housing, and the right side of the lead screw passes through the housing and is bolted to the output end of the servo motor, so that the servo motor serves as a driving source to drive the lead screw to rotate inside the housing cavity.

[0011] Preferably, a support table is bolted to the right side of the frame, and a baffle is bolted to the right side of the front of the support table, so that the piston pin falls onto the top of the support table after leaving the conveyor belt, and the piston pin is blocked on the support table by the baffle to prevent it from falling.

[0012] Preferably, a driven wheel is bolted to the top of the rotating roller, and a chain is meshed with the surface of the driven wheel, so that the chain drives the driven wheel to rotate, and the driven wheel transmits the rotational power to the rotating roller, so that the rotating roller drives the conveyor belt to move.

[0013] Preferably, a stepping motor is bolted to the left side of the rear of the frame, a driving wheel is bolted to the output end of the stepping motor, and the surface of the driving wheel is meshed with the surface of the chain, so that the stepping motor serves as a driving source to drive the driving wheel to rotate, and the rotating power of the driving wheel is transmitted to the driven wheel through the chain, so that the driven wheel rotates synchronously.

[0014] Preferably, a blanking plate is bolted to the rear of the fixing rod. By positioning the piston pin with the blanking plate, when the receiving groove moves forward and resets, the piston pin that has completed chamfer rolling is pushed into the blanking box.

[0015] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0016] 1. For a chamfer rolling device of the present utility model, by components such as a mounting frame, a rectangular groove, a blanking box, a housing, a lead screw, a threaded sleeve, a connecting rod, and a receiving groove, chamfering devices are respectively arranged at both ends of the mounting frame, thereby realizing synchronous and fully automatic processing of both ends of the piston pin, effectively improving the processing efficiency of the piston pin.

[0017] 2. For a chamfer rolling device of the present utility model, there is no need to manually install, fix, and remove the piston pin. After processing, the piston pin automatically falls into the material receiving box, greatly improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the front view of the overall structure of the present utility model;

[0020] Figure 2 It is the front sectional view of the overall structure of the present utility model;

[0021] Figure 3 It is the unfolded schematic diagram of the overall structure of the present utility model;

[0022] Figure 4 For the Figure 3 enlarged view of the structure at A in the present utility model;

[0023] Figure 5 For the Figure 3 enlarged view of the structure at B in the present utility model.

[0024] Description of the reference numerals in the drawings:

[0025] 1. Frame; 2. Rotating roller; 3. Conveyor belt; 4. Piston pin; 5. Mounting frame; 6. Rectangular groove; 7. Feeding box; 8. Housing; 9. Lead screw; 10. Threaded sleeve; 11. Connecting rod; 12. Receiving groove; 13. Fixed rod; 14. First cylinder; 15. Pushing plate; 16. Second hydraulic cylinder; 17. Driving motor; 18. Rolling wheel; 19. Limiting slide rail; 20. Slide block; 21. Servo motor; 22. Support table; 23. Baffle; 24. Driven wheel; 25. Chain; 26. Stepping motor; 27. Driving wheel; 28. Feeding plate. Detailed implementation manner

[0026] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further introduced in detail below in conjunction with the accompanying drawings.

[0027] The present utility model provides a chamfer rolling device as Figures 1-5 shown, including a frame 1. The two sides inside the frame 1 are rotatably connected by bearings with rotating rollers 2. A conveyor belt 3 is sleeved on the surface of the rotating rollers 2. A piston pin 4 is arranged above the conveyor belt 3. The front part of the frame 1 is bolted with a mounting frame 5. A rectangular groove 6 is opened in the center of the mounting frame 5. A feeding box 7 is arranged inside the rectangular groove 6. The front part of the mounting frame 5 is bolted with a housing 8. The inner side of the inner cavity of the housing 8 is rotatably connected by bearings with a lead screw 9. The two sides of the surface of the lead screw 9 are rotatably connected by bearings with threaded sleeves 10. The rear part of the threaded sleeve 10 is hinged with a connecting rod 11. The other end of the connecting rod 11 is hinged with a receiving groove 12. The center of the inner cavity of the housing 8 is bolted with a fixed rod 13, and the surface of the fixed rod 13 is slidably connected with the inner side of the receiving groove 12. The right side of the rear part of the frame 1 is bolted with a first cylinder 14. The front part of the first cylinder 14 is bolted with a pushing plate 15.

[0028] On both sides of the front surface of the mounting frame 5, second hydraulic cylinders 16 are bolted. Inside the second hydraulic cylinders 16, driving motors 17 are bolted. The output end of the driving motor 17 is bolted with a rolling wheel 18. By using the second hydraulic cylinder 16 as the first driving source, the driving motor 17 and the rolling wheel 18 are pushed inward by the thrust until the surface of the rolling wheel 18 enters the inside of the piston pin 4. Subsequently, the driving motor 17 drives the rolling wheel 18 to rotate, improving the rolling efficiency of the rolling device.

[0029] On both sides of the front surface of the mounting frame 5, limiting slide rails 19 are bolted. Inside the limiting slide rails 19, slide blocks 20 are slidably connected, and the inner sides of the slide blocks 20 are bolted with the outer sides of the driving motors 17, so that the driving motor 17 can horizontally move inside the limiting slide rail 19 when being pushed by the second hydraulic cylinder 16, limiting the moving path of the driving motor 17.

[0030] A servo motor 21 is bolted to the right side of the housing 8, and the right side of the lead screw 9 passes through the housing 8 and is bolted to the output end of the servo motor 21, so that the servo motor 21 serves as a driving source to drive the lead screw 9 to rotate in the inner cavity of the housing 8.

[0031] A support platform 22 is bolted to the right side of the frame 1, and a baffle 23 is bolted to the right side of the front surface of the support platform 22, so that the piston pin 4 falls onto the top of the support platform 22 after separating from the conveyor belt 3, and the piston pin 4 is blocked on the support platform 22 by the baffle 23 to prevent it from falling.

[0032] A driven wheel 24 is bolted to the top of the rotating roller 2, and a chain 25 is meshed with the surface of the driven wheel 24, so that the chain 25 drives the driven wheel 24 to rotate. The driven wheel 24 transmits the rotational power to the rotating roller 2, so that the rotating roller 2 drives the conveyor belt 3 to operate.

[0033] A stepper motor 26 is bolted to the left side of the rear part of the frame 1, and a driving wheel 27 is bolted to the output end of the stepper motor 26. The surface of the driving wheel 27 is meshed with the surface of the chain 25, so that the stepper motor 26 serves as a driving source to drive the driving wheel 27 to rotate. The driving wheel 27 transmits the rotational power to the driven wheel 24 through the chain 25, so that the driven wheel 24 rotates synchronously.

[0034] A blanking plate 28 is bolted to the rear part of the fixed rod 13. By positioning the piston pin 4 with the blanking plate 28, when the receiving groove 12 moves forward and resets, the piston pin 4 that has completed chamfering and rolling is pushed into the blanking box 7.

[0035] Refer to the attached instructions Figures 1-5, Working principle: A chamfering and rolling device of the present utility model, through components such as mounting frame 5, rectangular groove 6, blanking box 7, housing 8, lead screw 9, threaded sleeve 10, connecting rod 11, receiving groove 12, etc. During the use of the device, first, the servo motor 21 is started, so that the servo motor 21 drives the lead screw 9 to rotate, and the threaded sleeves 10 on both sides of the surface of the lead screw 9 are driven to move inward, and then the threaded sleeve 10 pushes the rear receiving groove 12 backward through the connecting rod 11 until the receiving groove 12 blocks the rectangular groove 6. Subsequently, the conveyor belt 3 transports the piston pin 4 to be processed to the top of the support table 22. Then, the first cylinder 14 is started, so that the first cylinder 14 pushes the piston pin 4 out to the top of the receiving groove 12 through the push plate 15. At this time, the second hydraulic cylinder 16 is started, so that the second hydraulic cylinder 16 pushes the drive motor 17 and the rolling wheel 18 to move into the piston pin 4. With the rotational power given by the drive motor 17 to the rolling wheel 18 and the horizontal extrusion force of the second hydraulic cylinder 16, the chamfering and rolling operation is completed on both sides of the piston pin 4. After the processing is completed, the servo motor 21 rotates in reverse, so that the lead screw 9 pulls the connecting rod 11 to both sides through the threaded sleeve 10, and then the receiving groove 12 moves forward. At the same time, the blanking plate 28 gradually protrudes and pushes the processed piston pin 4 out of the receiving groove 12, so that the piston pin 4 passes through the rectangular groove 6 and enters the blanking box 7, enabling the piston pin 4 to be stored uniformly. Chamfering devices are respectively arranged at both ends of the mounting frame 5, thus realizing the synchronous full-automatic processing of both ends of the piston pin 4, effectively improving the processing efficiency of the piston pin 4, and the device does not require manual installation, fixation, and removal of the piston pin 4. After the processing is completed, the piston pin 4 automatically falls into the receiving box, greatly improving the processing efficiency.

[0036] Only some exemplary embodiments of the present utility model have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present utility model. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A chamfer rolling device, comprising a frame (1), characterized in that: On both sides inside the frame (1), there are rotating rollers (2) rotatably connected through bearings. A conveyor belt (3) is sleeved on the surface of the rotating rollers (2). A piston pin (4) is arranged above the conveyor belt (3). An installation frame (5) is bolted to the front of the frame (1). A rectangular groove (6) is formed in the center of the installation frame (5). A blanking box (7) is arranged inside the rectangular groove (6). A housing (8) is bolted to the front of the installation frame (5). A lead screw (9) is rotatably connected to the inner side of the housing (8) through a bearing. On both sides of the surface of the lead screw (9), there are threaded sleeves (10) rotatably connected through bearings. A connecting rod (11) is hinged to the rear of the threaded sleeve (10). The other end of the connecting rod (11) is hinged to a receiving groove (12). A fixed rod (13) is bolted to the center of the inner cavity of the housing (8), and the surface of the fixed rod (13) is slidably connected to the inner side of the receiving groove (12). A first cylinder (14) is bolted to the right side of the rear of the frame (1), and a push plate (15) is bolted to the front of the first cylinder (14).

2. The chamfer rolling device according to claim 1, characterized in that: On both sides of the front of the installation frame (5), there are second hydraulic cylinders (16) bolted. Inside each of the second hydraulic cylinders (16), there is a drive motor (17) bolted. The output end of the drive motor (17) is bolted with a rolling wheel (18).

3. The chamfer rolling device according to claim 2, characterized in that: On both sides of the front of the installation frame (5), there are limit sliding rails (19) bolted. Sliders (20) are slidably connected to the inside of the limit sliding rails (19), and the outside of the drive motors (17) is bolted to the inside of the sliders (20).

4. The chamfer rolling device according to claim 1, wherein: A servo motor (21) is bolted to the right side of the housing (8), and the right side of the lead screw (9) passes through the housing (8) and is bolted to the output end of the servo motor (21).

5. A chamfer rolling device according to claim 1, characterized in that: A support platform (22) is bolted to the right side of the frame (1), and a baffle (23) is bolted to the right side of the front of the support platform (22).

6. The chamfer rolling device according to claim 1, wherein: A driven wheel (24) is bolted to the top of the rotating roller (2), and a chain (25) is meshed with the surface of the driven wheel (24).

7. The chamfer rolling device according to claim 6, characterized in that: A stepping motor (26) is bolted to the left side of the rear of the frame (1), and a driving wheel (27) is bolted to the output end of the stepping motor (26), and the surface of the driving wheel (27) is meshed with the surface of the chain (25).

8. The chamfer rolling device according to claim 1, wherein: A blanking plate (28) is bolted to the rear of the fixed rod (13).

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