Piston pin chamfer machining device and machining method thereof

Abstract

The invention provides a piston pin chamfer machining device and a machining method thereof, and relates to the technical field of chamfer machining, the piston pin chamfer machining device comprises a base, a turnover mechanism is arranged at the top of the base, the turnover mechanism comprises a side plate, the side plate is fixedly connected with the base, the inner surface of the side plate is rotationally connected with a supporting rod through a bearing, and the supporting rod is fixedly connected with the base. A telescopic outer cylinder is fixedly connected to the surface of the supporting rod, a telescopic inner rod is slidably connected to the inner surface of the telescopic outer cylinder, and a connecting rod is fixedly connected to the other end of the telescopic inner rod. And by controlling the meshing length of the rack and the third gear and adjusting the moving distance of the positioning plate, various size changes can be accurately and rapidly adapted, complex manual re-debugging or replacement of a large number of parts is not needed, and the whole clamping process can be ensured to be stable and reliable regardless of the size of the piston pin.

Description

Technical Field

[0001] The invention relates to the technical field of chamfering, and in particular to a piston pin chamfering device and a processing method thereof. Background Art

[0002] In the field of modern mechanical manufacturing, piston pins are important parts in key equipment such as engines, and the chamfering of piston pins is an indispensable process. In the positioning link, it is difficult for previous devices to accurately fix piston pins of different sizes, and the chamfering accuracy is often poor due to positioning deviation, resulting in a high defective rate of products. Moreover, for piston pins of different specifications, it is often necessary to manually re-adjust the fixture or replace a large number of parts, which is cumbersome and time-consuming, seriously affecting production efficiency. During the loading and unloading process, manual operations are frequent and inefficient, and the loading and unloading time is long, resulting in a slow overall operation rhythm of the equipment, which cannot meet the needs of large-scale production. When the blade works continuously for a long time, the performance drops sharply due to excessive friction and high temperature, which not only shortens the service life of the blade and increases the cost of tool replacement, but also frequently replaces the blade to extend the equipment downtime and reduce the equipment utilization rate. In addition, if the debris generated during the processing is not cleaned up in time, it is very easy to accumulate in the working area, interfere with the subsequent processing flow, affect the processing accuracy of the piston pin, and may even enter the inside of the equipment, causing equipment failure and increasing equipment maintenance costs. For this reason, we propose a piston pin chamfering processing device and a processing method thereof. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problem and to propose a piston pin chamfering processing device and a processing method thereof.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a piston pin chamfering processing device comprises a base, a flip mechanism is arranged on the top of the base, the flip mechanism comprises a side plate, the side plate is fixedly connected to the base, the inner surface of the side plate is rotatably connected to a support rod through a bearing, the surface of the support rod is fixedly connected to a telescopic outer cylinder, the inner surface of the telescopic outer cylinder is slidably connected to a telescopic inner rod, the other end of the telescopic inner rod is fixedly connected to a connecting rod, the outer surface of the connecting rod is rotatably connected to a flip frame, the outer surface of the connecting rod is fixedly connected to the support frame, the outer surface of the support frame is fixedly connected to a positioning frame, the inner surface of the positioning frame is provided with a positioning groove, the inner surface of the positioning groove is rotatably connected to a positioning cylinder, the inner surface of the positioning cylinder is fixedly connected to a limiting plate, and the outer surface of the limiting plate is slidably connected to the positioning plate.

[0005] Preferably, the inner surface of the positioning groove is rotatably connected to a rotating cylinder via a bearing, the rotating cylinder is fixedly connected to the positioning cylinder, a control groove is opened on the inner surface of the positioning frame, one end of the rotating cylinder is rotatably connected to the control groove via a bearing, the inner surface of the control groove is rotatably connected to two first rotating rods via a bearing, the outer surfaces of the two first rotating rods are fixedly connected to a first gear, the outer surface of the rotating cylinder is fixedly connected to a second gear, the outer surfaces of the two first gears are transmission-connected to a synchronous belt, and the inner surface of the synchronous belt is fixedly connected to a plurality of teeth meshing with the first gear and the second gear.

[0006] Preferably, a control mechanism is also provided on the top of the base, and the control mechanism includes an electric slide rail, the outer surface of the electric slide rail is slidably connected to a sliding seat, the outer surface of the sliding seat is fixedly connected to a mounting plate, the outer surface of the mounting plate is fixedly connected to a rack, the outer surface of the positioning frame is rotatably connected to a second rotating rod through a bearing, the outer surface of one side of the second rotating rod is fixedly connected to a third gear, the third gear is meshed with the rack, the outer surface of the other side of the second rotating rod is fixedly connected to a rotating disk, the outer surface of the rotating disk is provided with a spiral groove, the outer surface of the positioning plate is fixedly connected to a limiting block, and the limiting block is slidably connected to the spiral groove.

[0007] Preferably, the electric slide rail is fixedly mounted on the outer surface of the flip frame, and the positioning cylinder is sleeved on the outer surface of the second rotating rod.

[0008] Preferably, the outer surface of the side panel is fixedly connected to a third rotating rod, the outer surface of the third rotating rod is fixedly connected to a rotating plate, the outer surface of the rotating plate is fixedly connected to a positioning block, the outer surface of the flip frame is provided with a sliding groove, the positioning block is slidably connected to the sliding groove, the inner surface of the side panel is fixedly connected to an arc rail, the connecting rod is slidably connected to the arc rail, the surface of the side panel is fixedly mounted with a first motor, and the output end of the first motor is fixedly connected to the third rotating rod.

[0009] Preferably, a second motor is fixedly mounted on the outer surface of the positioning frame, and an output end of the second motor is fixedly connected to the first rotating rod.

[0010] Preferably, a replacement mechanism is also provided on the top of the base, and the replacement mechanism includes a first spring, the first spring is fixedly connected to the base, the other end of the first spring is fixedly connected to a lifting block, the outer surface of the lifting block is rotatably connected to a first connecting plate via a bearing, the other end of the first connecting plate is rotatably connected to a second connecting plate via a bearing, the other end of the second connecting plate is fixedly connected to an operating plate, and two blades are installed on the top of the operating plate.

[0011] Preferably, a protective cylinder is fixedly connected to the upper surface of the base, a first hose is connected to the upper surface of the protective cylinder, the other end of the first hose is fixedly connected to the operating panel, a fixed plate is fixedly connected to the upper surface of the base, an operating cylinder is rotatably connected to the upper surface of the base through a bearing, the fixed plate is slidably connected to the lifting block, a blocking rod is fixedly connected to the outer surface of the fixed plate, the protective cylinder is rotatably connected to the operating cylinder, a slope block is fixedly connected to the upper surface of the operating cylinder, and two push rods are fixedly connected to the lower surface of the operating plate.

[0012] Preferably, a cleaning mechanism is further provided on the upper surface of the base, and the cleaning mechanism includes a second hose, the second hose is connected to the telescopic outer cylinder, the surface of the base is provided with a first ventilation groove, the outer surface of the base is fixedly connected to a ventilation box, the other end of the second hose is connected to the ventilation box, the ventilation box is connected to the first ventilation groove, the outer surface of the first ventilation groove is connected to a third ventilation groove, the surface of the third ventilation groove is connected to a fourth ventilation groove, the surface of the fourth ventilation groove is connected to the second ventilation groove, the upper surface of the base is provided with a ventilation hole for connecting the second ventilation groove and the operating cylinder, the inner surface of the third ventilation groove is slidably connected to a lifting frame, the upper surface of the lifting frame is fixedly connected to a connecting block, the outer surface of the operating cylinder is provided with a first inclined groove and a second inclined groove, the connecting block is slidably connected to the first inclined groove and the second inclined groove, the outer surface of the operating plate is provided with a cleaning hole, and a second spring is fixedly connected between the lifting frame and the third ventilation groove.

[0013] Preferably, a piston pin chamfering method comprises the following steps: S1: Put the piston pin transported from outside into the positioning groove on the positioning frame, and then start the first motor. After the motor runs, it drives a series of related components to operate, and finally completes the positioning and clamping of the piston pin.

[0014] S2: When the positioning frame moves to a vertical downward position, the second motor is started, and the motor drives related components to cause the piston pin to start rotating and contact with the blade during the rotation process, thereby realizing the chamfering operation.

[0015] S3: After the chamfering process is completed, the flip frame is rotated to rotate the positioning frame upward and reset. At the same time, the electric slide rail is started to release the piston pin of the positioning plate, and the piston pin falls into the collection groove on the right side of the base by its own gravity.

[0016] S4: When the positioning frame moves downward again to prepare for the next round of chamfering, the airflow generated by the telescopic inner rod squeezing the air inside the telescopic outer cylinder is used to drive the operation of related components, thereby achieving the alternating use of the two sets of blades.

[0017] S5: As the lifting frame moves upward to a specific position of the fourth ventilation slot, the airflow flows along a predetermined path and is ejected upward from the cleaning hole to clean the chamfered debris on the surface of the operation panel.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are: The third gear on the second rotating rod is meshed with the third gear on the second rotating rod, and the positioning frame continues to move downward, and the rack drives the third gear to rotate, and the rotating disk is driven by the second rotating rod, and the rotating disk pushes the limit block through the spiral groove, so that the limit plate drives the positioning plate to clamp the piston pin, and the piston pin can be accurately fixed at the required position, ensuring that the position of the piston pin will not be offset during the subsequent chamfering process, thereby greatly improving the accuracy of the chamfering, and by controlling the meshing length of the rack and the third gear and adjusting the moving distance of the positioning plate, it can accurately and quickly adapt to a variety of size changes, without the need for complex manual re-debugging or replacement of a large number of parts, so that no matter what the size of the piston pin is, the entire clamping process can ensure stability and reliability.

[0019] 2. The present invention proposes a piston pin chamfering processing device and a processing method thereof. When the positioning frame is vertically downward, the second motor is started to drive the first rotating rod and the first gear, and multiple second gears are driven by the synchronous belt to rotate the rotating cylinder and the positioning cylinder, and the piston pin is driven to rotate through the limit plate and the positioning plate, and the chamfering is completed by contacting with the blade. After chamfering, the flip frame is rotated to allow the positioning frame to move up and reset, and the electric slide rail is started at the same time to make the rack on the other side and the third gear rotate in the opposite direction. The positioning plate releases the piston pin, and the piston pin falls into the collection groove on the right side of the base by gravity. The positioning plate automatically and synchronously switches the clamping and releasing actions of the piston pin, which greatly shortens the time required for loading and unloading. The equipment can quickly complete the unloading after processing a piston pin, and quickly load the next piston pin to be processed, thereby improving the overall work efficiency.

[0020] 3. The present invention proposes a piston pin chamfering processing device and a processing method thereof. When the positioning frame chamfers downward, the telescopic inner rod squeezes the air in the telescopic outer cylinder, and the gas enters the ventilation box through the second hose, and then flows into the first and third ventilation grooves in sequence, pushing the lifting frame and the connecting block to move upward. The movement of the connecting block drives the operating cylinder and the slope block to rotate. The slope block pushes the push rod to swing the operating panel, and the operating panel lifts the blade on the other side, so that the blades can be used alternately after a batch of piston pins are chamfered, thereby extending the life of the blades. In the process of continuous processing of piston pins, a single set of blades is avoided from working continuously for a long time, effectively reducing the performance degradation of the blades due to excessive friction and heat generation, greatly extending the overall service life of the blades, reducing the frequency of tool replacement, and reducing production costs.

[0021] 4. The present invention proposes a piston pin chamfering processing device and a processing method thereof, wherein when the lifting frame moves up to the fourth ventilation groove, the air flow passes through the fourth and second ventilation grooves in sequence, passes through the ventilation hole and enters the operating cylinder, and then is ejected from the cleaning hole to clean the chamfered debris on the operating plate. When the positioning frame rotates upward, the telescopic inner rod moves outward, the lifting frame is reset by the second spring, and external gas is introduced to balance the air pressure to prepare for the next cleaning. The chamfered debris on the surface of the operating plate is automatically cleaned by the air flow, which can continuously keep the working area of ​​the equipment clean. Timely cleaning of the debris can avoid secondary friction with the blade or the piston pin during the piston pin processing process, and avoid the accumulation of debris affecting the subsequent processing accuracy of the piston pin. The lifting frame is reset by the second spring, and the air intake pipe and the one-way valve maintain the air pressure balance of the ventilation box, thereby ensuring that the cleaning system can work continuously and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention provides a piston pin chamfering processing device and a processing method thereof. Figure 2 A rear view partial structural schematic diagram of a piston pin chamfering processing device and a processing method thereof proposed by the present invention; Figure 3 The present invention provides a piston pin chamfering processing device and a processing method thereof; Figure 4 A schematic diagram of the partial structure of a base of a piston pin chamfering processing device and a processing method thereof proposed by the present invention; Figure 5 A schematic diagram of the partial structure of an operating panel of a piston pin chamfering processing device and a processing method thereof proposed by the present invention; Figure 6 A schematic diagram of the local structure of a rotating cylinder for a piston pin chamfering processing device and a processing method thereof proposed by the present invention; Figure 7 A schematic diagram of the partial structure of an electric slide rail for a piston pin chamfering processing device and a processing method thereof proposed by the present invention; Figure 8 A schematic diagram of a partial cross-sectional structure of a positioning groove of a piston pin chamfering processing device and a processing method thereof proposed by the present invention; Fig. 9 A schematic diagram of the partial structure of a rotating disk of a piston pin chamfering processing device and a processing method thereof proposed by the present invention; Fig.10 The present invention proposes a piston pin chamfering processing device and a processing method thereof Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] Legend: 1. Base; 2. Turning mechanism; 201. Side plate; 202. Support rod; 203. Telescopic outer cylinder; 204. Telescopic inner rod; 205. Connecting rod; 206. Turning frame; 207. Support frame; 208. Positioning frame; 209. Positioning groove; 210. Positioning cylinder; 211. Limiting plate; 212. Positioning plate; 3. Control mechanism; 301. Electric slide rail; 302. Sliding seat; 303. Mounting plate; 304. Rack; 305. Second rotating rod; 306. Third gear; 307. Rotating disk; 308. Spiral groove; 309. Limiting block; 4. Replacement mechanism; 401. First spring; 402. Lifting block; 403. First connecting plate; 404. Second connecting plate; 405. Operating plate; 406. Blade; 5. Cleaning mechanism; 5 01, second hose; 502, first ventilation groove; 503, second ventilation groove; 504, third ventilation groove; 505, ventilation hole; 506, lifting frame; 507, connecting block; 509, first inclined groove; 510, second inclined groove; 511, ventilation box; 512, fourth ventilation groove; 513, cleaning hole; 514, second spring; 6, rotating cylinder; 7, control groove; 8, first rotating rod; 9, first gear; 10, second gear; 11, synchronous belt; 12, teeth; 13, third rotating rod; 14, rotating plate; 15, positioning block; 16, slide groove; 17, arc rail; 18, second motor; 19, protective cylinder; 20, first hose; 21, fixing plate; 22, operating cylinder; 23, stop rod; 24, slope block; 25, push rod; 26, first motor. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0026] like Figure 1 - Fig.10As shown, a piston pin chamfering processing device comprises a base 1, a flip mechanism 2 is arranged on the top of the base 1, the flip mechanism 2 comprises a side plate 201, the side plate 201 is fixedly connected to the base 1, the inner surface of the side plate 201 is rotatably connected to a support rod 202 through a bearing, the surface of the support rod 202 is fixedly connected to a telescopic outer cylinder 203, the inner surface of the telescopic outer cylinder 203 is slidably connected to a telescopic inner rod 204, the other end of the telescopic inner rod 204 is fixedly connected to a connecting rod 205, the outer surface of the connecting rod 205 is rotatably connected to a flip frame 206, the outer surface of the connecting rod 205 is fixedly connected to a support frame 207, the outer surface of the support frame 207 is fixedly connected to a positioning frame 208, the inner surface of the positioning frame 208 is provided with a positioning groove 209, the inner surface of the positioning groove 209 is rotatably connected to a positioning cylinder 210, the inner surface of the positioning cylinder 210 is fixedly connected to a limiting plate 211, and the outer surface of the limiting plate 211 is slidably connected to a positioning plate 212.

[0027] The effect is that when the flip frame 206 rotates downward, it drives the connecting rod 205 to move, and the connecting rod 205 drives the telescopic inner rod 204 to move toward the inside of the telescopic outer cylinder 203. At the same time, the telescopic outer cylinder 203 rotates downward, and the connecting rod 205 drives the support frame 207 on the surface to rotate downward, and the support frame 207 drives the positioning frame 208 to rotate downward. During the downward movement of the positioning frame 208, the positioning frame 208 and the flip frame 206 rotate relative to each other. At this time, the second rotating rod 305 on the positioning frame 208 moves with the positioning frame 208. At this time, the limit block 309 slides along the limit plate 211 to the middle position, and the limit plate 211 drives the positioning plate 212 to move. At this time, the positioning plate 212 can clamp and position the piston pin.

[0028] like Figure 1 - Fig.10As shown, the inner surface of the positioning groove 209 is rotatably connected to the rotating cylinder 6 through a bearing, and the rotating cylinder 6 is fixedly connected to the positioning cylinder 210. A control groove 7 is opened on the inner surface of the positioning frame 208. One end of the rotating cylinder 6 is rotatably connected to the control groove 7 through a bearing. The inner surface of the control groove 7 is rotatably connected to two first rotating rods 8 through a bearing. The outer surfaces of the two first rotating rods 8 are fixedly connected to the first gear 9. The outer surface of the rotating cylinder 6 is fixedly connected to the second gear 10. The outer surfaces of the two first gears 9 are transmission-connected to the synchronous belt 11. The inner surface of the synchronous belt 11 A plurality of teeth 12 meshing with the first gear 9 and the second gear 10 are fixedly connected, a control mechanism 3 is also provided on the top of the base 1, and the control mechanism 3 includes an electric slide rail 301, the outer surface of the electric slide rail 301 is slidably connected to a sliding seat 302, the outer surface of the sliding seat 302 is fixedly connected to a mounting plate 303, the outer surface of the mounting plate 303 is fixedly connected to a rack 304, the outer surface of the positioning frame 208 is rotatably connected to a second rotating rod 305 through a bearing, the outer surface of one side of the second rotating rod 305 is fixedly connected to a third gear 306, and the third gear The outer surface of the second rotating rod 305 is fixedly connected with a rotating disk 307, and a spiral groove 308 is provided on the outer surface of the rotating disk 307. The outer surface of the positioning plate 212 is fixedly connected with a limiting block 309, and the limiting block 309 is slidably connected with the spiral groove 308. The electric slide rail 301 is fixedly installed on the outer surface of the flip frame 206, and the positioning cylinder 210 is sleeved on the outer surface of the second rotating rod 305. The outer surface of the side plate 201 is fixedly connected with the third rotating rod 13, and the outer surface of the third rotating rod 13 is fixedly connected There is a rotating plate 14, the outer surface of the rotating plate 14 is fixedly connected with a positioning block 15, the outer surface of the flip frame 206 is provided with a slide groove 16, the positioning block 15 is slidably connected to the slide groove 16, the inner surface of the side plate 201 is fixedly connected to the arc rail 17, the connecting rod 205 is slidably connected to the arc rail 17, the surface of the side plate 201 is fixedly installed with a first motor 26, the output end of the first motor 26 is fixedly connected to the third rotating rod 13, the outer surface of the positioning frame 208 is fixedly installed with a second motor 18, and the output end of the second motor 18 is fixedly connected to the first rotating rod 8.

[0029] The effect is that a third gear 306 is fixed on the surface of the second rotating rod 305, and an electric slide rail 301 is installed on the flip frame 206. A sliding seat 302 is slidably arranged on the surface of the electric slide rail 301, and a mounting plate 303 is arranged on the surface of the sliding seat 302. The electric slide rail 301 is started, so that the rack 304 above the mounting plate 303 contacts the third gear 306, and the third gear 306 meshes with the rack 304 on the mounting plate 303. As the third gear 306 moves downward with the positioning frame 208, the rack 304 drives the third gear 306 to rotate, thereby driving the second rotating rod 305 to rotate, and the second rotating rod 305 drives the rotating disk 307 on the other side to rotate, and the rotating disk 307 drives the spiral groove 308 on the surface to rotate, so that the limit block 309 inside the spiral groove 308 moves accordingly. At this time, the positioning plate 21 2 can clamp and position the piston pin, the first rotating rod 8 drives the first gear 9 on the surface to rotate, the first gear 9 drives the synchronous belt 11 to rotate through the teeth 12, the teeth 12 arranged on the inner surface of the synchronous belt 11 drive the plurality of second gears 10 to rotate, the second gear 10 drives the rotating cylinder 6 to rotate, the rotating cylinder 6 drives the positioning cylinder 210 to rotate, the positioning cylinder 210 drives the positioning plate 212 to rotate through the limit plate 211, at this time, the internal piston pin can be driven to rotate, and the blade 406 is contacted during the rotation process, and chamfering can be performed at this time, when the chamfering is completed, the flip frame 206 is continuously rotated, so that the positioning frame 208 rotates upward to reset, at the same time, the electric slide rail 301 is started, so that the rack 304 on the other side contacts the third gear 306, and drives the third gear 306 to rotate in the opposite direction, so that the positioning plate 212 leaves the piston pin.

[0030] like Figure 1 - Fig.10 As shown, a replacement mechanism 4 is also provided on the top of the base 1, and the replacement mechanism 4 includes a first spring 401, the first spring 401 is fixedly connected to the base 1, the other end of the first spring 401 is fixedly connected to a lifting block 402, the outer surface of the lifting block 402 is rotatably connected to a first connecting plate 403 through a bearing, the other end of the first connecting plate 403 is rotatably connected to a second connecting plate 404 through a bearing, the other end of the second connecting plate 404 is fixedly connected to an operating plate 405, two blades 406 are installed on the top of the operating plate 405, and the upper surface of the base 1 is fixedly connected There is a protective cylinder 19, the upper surface of which is connected to a first hose 20, the other end of which is fixedly connected to an operating panel 405, a fixed plate 21 is fixedly connected to the upper surface of the base 1, an operating cylinder 22 is rotatably connected to the upper surface of the base 1 through a bearing, the fixed plate 21 is slidably connected to a lifting block 402, a blocking rod 23 is fixedly connected to the outer surface of the fixed plate 21, the protective cylinder 19 is rotatably connected to the operating cylinder 22, a slope block 24 is fixedly connected to the upper surface of the operating cylinder 22, and two push rods 25 are fixedly connected to the lower surface of the operating panel 405.

[0031] The effect is that when the positioning frame 208 is chamfered downward again, the telescopic inner rod 204 squeezes the air inside the telescopic outer cylinder 203, so that the gas inside the telescopic outer cylinder 203 can enter the second hose 501, the gas in the second hose 501 enters the ventilation box 511, the gas in the ventilation box 511 enters the first ventilation groove 502, the gas inside the first ventilation groove 502 enters the third ventilation groove 504, and the gas inside the third ventilation groove 504 can push the lifting frame 506 to move upward after entering, and the lifting frame 506 drives the connecting block 507 The connecting block 507 moves upward. Since the depth of the bottom end of the first slanted groove 509 is shallower than the depth of the bottom end of the second slanted groove 510, and the depth of the top end of the second slanted groove 510 is shallower than the depth of the top end of the first slanted groove 509, the moving direction of the connecting block 507 is always from the top end of the first slanted groove 509 to the bottom end of the second slanted groove 510, and then from the bottom end of the second slanted groove 510 to the top end of the next first slanted groove 509. When the connecting block 507 moves from the bottom end of the second slanted groove 510 to the top end of the next first slanted groove 509, the operating cylinder 22 can be driven to rotate, and the operating cylinder 22 drives the top end to rotate. When the ramp block 24 rotates, the ramp block 24 contacts one of the push rods 25, which pushes the push rod 25 to move upward, and the push rod 25 drives one end of the operating plate 405 to move upward. At this time, the operating plate 405 swings, and a second connecting plate 404 is fixed on the other side of the operating plate 405. At this time, the second connecting plate 404 swings downward and pushes the first connecting plate 403, so the other end of the first connecting plate 403 pushes the lifting block 402 to squeeze the first spring 401 to move downward. When one of the push rods 25 leaves the ramp block 24, due to the upward elastic force of the first spring 401, the first spring 40 1 drives the lifting block 402 to move upward. Since the stop rod 23 on the fixed plate 21 can limit the first connecting plate 403, the first connecting plate 403 can be against the stop rod 23. At this time, the operating plate 405 can lift the blade 406 on one side. When the slope block 24 continues to rotate and contacts the other push rod 25, it can drive the first connecting plate 403 to swing toward the stop rod 23 on the other side, and drive the other end of the operating plate 405 to lift up, so as to lift the blade 406 on the other side. After a batch of piston pins are chamfered each time, the chamfered blade 406 can be switched.

[0032] like Figure 1 - Fig.10As shown, the upper surface of the base 1 is also provided with a cleaning mechanism 5, the cleaning mechanism 5 includes a second hose 501, the second hose 501 is connected to the telescopic outer cylinder 203, a first ventilation groove 502 is provided on the surface of the base 1, a ventilation box 511 is fixedly connected to the outer surface of the base 1, the other end of the second hose 501 is connected to the ventilation box 511, the ventilation box 511 is connected to the first ventilation groove 502, the outer surface of the first ventilation groove 502 is connected to the third ventilation groove 504, the surface of the third ventilation groove 504 is connected to the fourth ventilation groove 512, the surface of the fourth ventilation groove 512 is connected to the A second ventilation groove 503 is provided, and a ventilation hole 505 for connecting the second ventilation groove 503 and the operating cylinder 22 is provided on the upper surface of the base 1. A lifting frame 506 is slidably connected to the inner surface of the third ventilation groove 504, and a connecting block 507 is fixedly connected to the upper surface of the lifting frame 506. A first inclined groove 509 and a second inclined groove 510 are provided on the outer surface of the operating cylinder 22, and the connecting block 507 is slidably connected to the first inclined groove 509 and the second inclined groove 510. A cleaning hole 513 is provided on the outer surface of the operating plate 405, and a second spring 514 is fixedly connected between the lifting frame 506 and the third ventilation groove 504.

[0033] The effect is that when the lifting frame 506 moves upward to the position of the fourth ventilation groove 512, the air flow enters the interior of the fourth ventilation groove 512 and moves to the interior of the second ventilation groove 503. The gas passes through the ventilation hole 505 along the second ventilation groove 503, enters the interior of the operating cylinder 22, and moves upward along the operating cylinder 22, and is sprayed upward from the cleaning hole 513. At this time, the chamfered debris on the surface of the operating plate 405 can be cleaned. When the positioning frame 208 rotates upward, the telescopic inner rod 204 moves toward the outside of the telescopic outer cylinder 203, and the lifting frame 506 is reset by the second spring 514. An air intake pipe is provided at the bottom of the ventilation box 511, and a one-way valve is provided. At this time, external gas enters the interior of the ventilation box 511 from the air intake pipe, so that the internal and external air pressures are balanced, which is convenient for the next cleaning.

[0034] like Figure 1 - Fig.10 As shown, a piston pin chamfering method comprises the following steps: S1: Put the piston pin transported from the outside into the positioning groove 209 on the positioning frame 208, and then start the first motor 26. After the motor runs, it drives a series of related components to operate, and finally completes the positioning and clamping of the piston pin.

[0035] S2: When the positioning frame 208 moves to a vertical downward position, the second motor 18 is started, and the motor drives related components to cause the piston pin to start rotating and contact the blade 406 during the rotation process, thereby achieving a chamfering operation.

[0036] S3: After the chamfering process is completed, the turning frame 206 is rotated to rotate the positioning frame 208 upward and reset. At the same time, the electric slide rail 301 is started to release the piston pin of the positioning plate 212, and the piston pin falls into the collection groove on the right side of the base 1 by its own gravity.

[0037] S4: When the positioning frame 208 moves downward again to prepare for the next round of chamfering, the airflow generated by the telescopic inner rod 204 squeezing the air inside the telescopic outer cylinder 203 is used to drive the operation of related components, thereby achieving the alternating use of the two sets of blades 406.

[0038] S5: As the lifting frame 506 moves upward to a specific position of the fourth ventilation groove 512 , the airflow flows along a predetermined path and is ejected upward from the cleaning hole 513 to clean the chamfered debris on the surface of the operating panel 405 .

[0039] Working principle: during operation, the piston pin in external transportation is placed in the positioning groove 209 on the positioning frame 208, and the first motor 26 is started. The first motor 26 drives the third rotating rod 13 to rotate, and the third rotating rod 13 drives the rotating plate 14 to rotate. The rotating plate 14 drives the surface positioning block 15 to rotate, and the positioning block 15 slides inside the slide groove 16. At this time, the flip frame 206 can be driven to swing back and forth. When the flip frame 206 rotates downward, it drives the connecting rod 205 to move, and the connecting rod 205 drives the telescopic inner rod 204 to move toward the inside of the telescopic outer cylinder 203. At the same time, the telescopic outer cylinder 203 rotates downward, and the connecting rod 205 drives the surface support frame 207 to rotate downward, and the support frame 207 drives the positioning frame 208 to rotate downward. When the positioning frame 208 moves downward, the positioning frame 208 and the flip frame 206 rotate relative to each other. At this time, the second rotating rod 305 on the positioning frame 208 moves with the positioning frame 208. The third gear 306 is fixed on the surface of the second rotating rod 305. An electric slide rail 301 is installed on the flip frame 206. A sliding seat 302 is slidingly arranged on the surface of the electric slide rail 301. A mounting plate 303 is arranged on the surface of the sliding seat 302. The electric slide rail 301 is started so that the rack 304 above the mounting plate 303 contacts the third gear 306. The third gear 306 meshes with the rack 304 on the mounting plate 303. When the third gear 306 moves downward with the positioning frame 208, the rack 304 drives the third gear 306 to rotate. The second rotating rod 305 is driven to rotate, and the second rotating rod 305 drives the rotating disk 307 on the other side to rotate. The rotating disk 307 drives the spiral groove 308 on the surface to rotate, so that the limit block 309 inside the spiral groove 308 moves accordingly. At this time, the limit block 309 slides to the middle position along the limit plate 211, and the limit plate 211 drives the positioning plate 212 to move. When the positioning frame 208 moves to a vertical downward position, the second motor 18 is started, and the second motor 18 drives the first rotating rod 8 to rotate. The first rotating rod 8 drives the first gear 9 on the surface to rotate. The first gear 9 drives the synchronous belt 11 to rotate through the teeth 12. The teeth 12 set on the inner surface of the synchronous belt 11 drive multiple second gears 10 to rotate, and the second gear 10 drives the rotating cylinder 6 to rotate. The rotating cylinder 6 drives the positioning cylinder 210 to rotate, and the positioning cylinder 210 drives the positioning plate 212 to rotate through the limit plate 211, and at this time, the internal piston pin can be driven to rotate, and the blade 406 is contacted during the rotation process, and chamfering can be performed at this time. When the chamfering is completed, the flip frame 206 continues to rotate, so that the positioning frame 208 rotates upward and resets. At the same time, the electric slide rail 301 is started to make the rack 304 on the other side contact with the third gear 306, and drive the third gear 306 to rotate in the opposite direction, so that the positioning plate 212 leaves the piston pin. At this time, the piston pin enters the collecting groove on the right side of the base 1 through the action of gravity. When the positioning frame 208 is chamfered downward again, the telescopic inner rod 204 squeezes the air inside the telescopic outer cylinder 203,The gas inside the telescopic outer cylinder 203 can enter the second hose 501, the gas in the second hose 501 enters the ventilation box 511, the gas in the ventilation box 511 enters the first ventilation groove 502, the gas inside the first ventilation groove 502 enters the third ventilation groove 504, and the gas inside the third ventilation groove 504 can push the lifting frame 506 to move upward after entering, and the lifting frame 506 drives the connecting block 507 to move upward. Since the depth of the bottom end of the first inclined groove 509 is shallower than the depth of the bottom end of the second inclined groove 510, and the depth of the top end of the second inclined groove 510 is shallower than the depth of the top end of the first inclined groove 509, the moving direction of the connecting block 507 is always from the top end of the first inclined groove 509 to the bottom end of the second inclined groove 510, and then from The bottom end of the second inclined slot 510 moves to the top end of the next first inclined slot 509. When the connecting block 507 moves from the bottom end of the second inclined slot 510 to the top end of the next first inclined slot 509, the operating cylinder 22 can be driven to rotate. The operating cylinder 22 drives the top slope block 24 to rotate. When the slope block 24 contacts one of the push rods 25, it pushes the push rod 25 to move upward. The push rod 25 drives one end of the operating plate 405 to move upward. At this time, the operating plate 405 swings, and a second connecting plate 404 is fixed on the other side of the operating plate 405. At this time, the second connecting plate 404 swings downward and pushes the first connecting plate 403, so the other end of the first connecting plate 403 pushes the lifting block 402 to squeeze the first spring 401 to move downward. When one of the push rods 25 leaves the slope When the ramp block 24 is rotated and contacts with the other push rod 25, the first connecting plate 403 can be driven to swing toward the baffle 23 on the other side, and the other end of the operating plate 405 can be driven to lift up the blade 406 on the other side. After a batch of piston pins are chamfered each time, the chamfered blades 406 can be switched, so that the two sets of blades 406 can be used alternately, thereby increasing their service life and preventing the blades from being damaged by overheating. The performance of the sheet 406 is reduced. When the lifting frame 506 moves upward to the position of the fourth ventilation groove 512, the air flow enters the interior of the fourth ventilation groove 512 and moves to the interior of the second ventilation groove 503. The gas passes through the ventilation hole 505 along the second ventilation groove 503, enters the interior of the operating cylinder 22, and moves upward along the operating cylinder 22, and is ejected upward from the cleaning hole 513. At this time, the chamfered debris on the surface of the operating plate 405 can be cleaned. When the positioning frame 208 rotates upward, the telescopic inner rod 204 moves toward the outside of the telescopic outer cylinder 203, and the lifting frame 506 is reset by the second spring 514. An air intake pipe is provided at the bottom of the ventilation box 511, and a one-way valve is provided. At this time, external gas enters the interior of the ventilation box 511 from the air intake pipe.This balances the air pressure inside and outside the machine, making it easier to clean it next time.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A piston pin chamfering device, comprising a base (1), characterized in that: A flip mechanism (2) is arranged on the top of the base (1), and the flip mechanism (2) comprises a side plate (201), the side plate (201) is fixedly connected to the base (1), the inner surface of the side plate (201) is rotatably connected to a support rod (202) via a bearing, the surface of the support rod (202) is fixedly connected to a telescopic outer cylinder (203), the inner surface of the telescopic outer cylinder (203) is slidably connected to a telescopic inner rod (204), and the other end of the telescopic inner rod (204) is fixedly connected to a connecting rod (201). 05), the outer surface of the connecting rod (205) is rotatably connected to a turning frame (206), the outer surface of the connecting rod (205) is fixedly connected to a supporting frame (207), the outer surface of the supporting frame (207) is fixedly connected to a positioning frame (208), the inner surface of the positioning frame (208) is provided with a positioning groove (209), the inner surface of the positioning groove (209) is rotatably connected to a positioning cylinder (210), the inner surface of the positioning cylinder (210) is fixedly connected to a limiting plate (211), the limiting plate ( The outer surface of the electric slide rail (301) is slidably connected to a positioning plate (212), the top of the base (1) is also provided with a control mechanism (3), the control mechanism (3) comprises an electric slide rail (301), the outer surface of the electric slide rail (301) is slidably connected to a sliding seat (302), the outer surface of the sliding seat (302) is fixedly connected to a mounting plate (303), the outer surface of the mounting plate (303) is fixedly connected to a rack (304), the outer surface of the positioning frame (208) is rotatably connected to a second rotating shaft via a bearing The outer surface of one side of the second rotating rod (305) is fixedly connected to a third gear (306), and the third gear (306) is meshingly connected to the rack (304). The outer surface of the other side of the second rotating rod (305) is fixedly connected to a rotating disk (307), and the outer surface of the rotating disk (307) is provided with a spiral groove (308). The outer surface of the positioning plate (212) is fixedly connected to a limit block (309), and the limit block (309) is slidably connected to the spiral groove (308).

2. The piston pin chamfering device according to claim 1, characterized in that: The inner surface of the positioning groove (209) is rotatably connected to a rotating cylinder (6) via a bearing, and the rotating cylinder (6) is fixedly connected to the positioning cylinder (210). The inner surface of the positioning frame (208) is provided with a control groove (7), and one end of the rotating cylinder (6) is rotatably connected to the control groove (7) via a bearing. The inner surface of the control groove (7) is rotatably connected to two first rotating rods (8) via a bearing. The outer surfaces of the two first rotating rods (8) are both fixedly connected to a first gear (9). The outer surface of the rotating cylinder (6) is fixedly connected to a second gear (10). The outer surfaces of the two first gears (9) are transmission-connected to a synchronous belt (11), and the inner surface of the synchronous belt (11) is fixedly connected to a plurality of teeth (12) meshing with the first gear (9) and the second gear (10).

3. The piston pin chamfering device according to claim 2, characterized in that: The electric slide rail (301) is fixedly mounted on the outer surface of the turning frame (206), and the positioning cylinder (210) is sleeved on the outer surface of the second rotating rod (305).

4. The piston pin chamfering device according to claim 1, characterized in that: The outer surface of the side plate (201) is fixedly connected to a third rotating rod (13), the outer surface of the third rotating rod (13) is fixedly connected to a rotating plate (14), the outer surface of the rotating plate (14) is fixedly connected to a positioning block (15), the outer surface of the flip frame (206) is provided with a slide groove (16), the positioning block (15) is slidably connected to the slide groove (16), the inner surface of the side plate (201) is fixedly connected to an arc rail (17), the connecting rod (205) is slidably connected to the arc rail (17), and a first motor (26) is fixedly installed on the surface of the side plate (201), and an output end of the first motor (26) is fixedly connected to the third rotating rod (13).

5. The piston pin chamfering device according to claim 1, characterized in that: A second motor (18) is fixedly mounted on the outer surface of the positioning frame (208), and an output end of the second motor (18) is fixedly connected to the first rotating rod (8).

6. The piston pin chamfering device according to claim 1, characterized in that: A replacement mechanism (4) is also provided on the top of the base (1), and the replacement mechanism (4) comprises a first spring (401), the first spring (401) is fixedly connected to the base (1), the other end of the first spring (401) is fixedly connected to a lifting block (402), the outer surface of the lifting block (402) is rotatably connected to a first connecting plate (403) via a bearing, the other end of the first connecting plate (403) is rotatably connected to a second connecting plate (404) via a bearing, the other end of the second connecting plate (404) is fixedly connected to an operating plate (405), and two blades (406) are mounted on the top of the operating plate (405).

7. The piston pin chamfering device according to claim 6, characterized in that: A protective tube (19) is fixedly connected to the upper surface of the base (1), a first hose (20) is connected to the upper surface of the protective tube (19), the other end of the first hose (20) is fixedly connected to the operating panel (405), a fixed plate (21) is fixedly connected to the upper surface of the base (1), an operating tube (22) is rotatably connected to the upper surface of the base (1) via a bearing, the fixed plate (21) is slidably connected to the lifting block (402), a blocking rod (23) is fixedly connected to the outer surface of the fixed plate (21), the protective tube (19) is rotatably connected to the operating tube (22), a slope block (24) is fixedly connected to the upper surface of the operating tube (22), and two push rods (25) are fixedly connected to the lower surface of the operating panel (405).

8. The piston pin chamfering device according to claim 7, characterized in that: The upper surface of the base (1) is further provided with a cleaning mechanism (5), the cleaning mechanism (5) comprising a second hose (501), the second hose (501) being connected to the telescopic outer cylinder (203), a first ventilation groove (502) being provided on the surface of the base (1), a ventilation box (511) being fixedly connected to the outer surface of the base (1), the other end of the second hose (501) being connected to the ventilation box (511), the ventilation box (511) being connected to the first ventilation groove (502), the outer surface of the first ventilation groove (502) being connected to a third ventilation groove (504), the surface of the third ventilation groove (504) being connected to a fourth ventilation groove (512), the surface of the fourth ventilation groove (512) being connected to A second ventilation groove (503) is provided, a ventilation hole (505) for connecting the second ventilation groove (503) and the operating cylinder (22) is provided on the upper surface of the base (1), a lifting frame (506) is slidably connected to the inner surface of the third ventilation groove (504), a connecting block (507) is fixedly connected to the upper surface of the lifting frame (506), a first inclined groove (509) and a second inclined groove (510) are provided on the outer surface of the operating cylinder (22), the connecting block (507) is slidably connected to the first inclined groove (509) and the second inclined groove (510), a cleaning hole (513) is provided on the outer surface of the operating plate (405), and a second spring (514) is fixedly connected between the lifting frame (506) and the third ventilation groove (504).

9. A piston pin chamfering method, applied to a piston pin chamfering device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: placing a piston pin transported from outside into a positioning groove (209) on a positioning frame (208), and then starting a first motor (26). After the motor is running, a series of related components are driven to operate, and finally the positioning and clamping of the piston pin are completed; S2: When the positioning frame (208) moves to a vertical downward position, the second motor (18) is started, and the motor drives related components to cause the piston pin to start rotating and contact the blade (406) during the rotation process, thereby achieving a chamfering operation; S3: After the chamfering process is completed, the turning frame (206) is rotated to rotate the positioning frame (208) upward and reset. At the same time, the electric slide rail (301) is started to release the piston pin from the positioning plate (212), and the piston pin falls into the collection groove on the right side of the base (1) by its own gravity; S4: When the positioning frame (208) moves downward again to prepare for the next round of chamfering, the airflow generated by the telescopic inner rod (204) squeezing the air inside the telescopic outer cylinder (203) drives the operation of related components, thereby achieving the alternating use of the two sets of blades (406); S5: As the lifting frame (506) moves upward to a specific position of the fourth ventilation groove (512), the airflow flows along a predetermined path and is ejected upward from the cleaning hole (513) to clean the chamfered debris on the surface of the operating panel (405).

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