A precision cutting device for pin shaft production and processing

Abstract

The application discloses a precision cutting device for pin shaft production and processing, which comprises a machine body, a box body is installed at the top rear side of the machine body, and a mechanical arm for transferring external raw materials is arranged at the top front side of the machine body. The precision cutting device is provided with a first machining mechanism, a rotating mechanism, a second machining mechanism and a polishing mechanism, small holes are first formed in the two end faces of the raw material, then an abutting piece is used to clamp the two end small holes, the whole raw material is clamped and can be driven to rotate for cutting, the raw material with the feature of "large outer diameter at the two ends and small outer diameter in the middle" is formed, then two groups of symmetrical holes are formed on the raw material, the raw material is cut along the middle part, two groups of pin shafts are formed, and the protrusions on the end faces of the pin shafts after being broken are removed through the polishing mechanism, so that the end faces of the pin shafts become smooth. Therefore, two pin shafts are simultaneously produced through the device once, the whole process is automatic, and the production efficiency of the pin shafts is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pin processing, in particular to a precision cutting device for producing and processing pins. Background Art

[0002] Pins are a standardized fastener that can be used for both static fixing and relative movement with the connected parts. They are primarily used at the joints between two parts, creating hinged connections. Pins are typically locked with a cotter pin, ensuring reliable operation and easy removal. Pins require finishing during production. Because they are rotating shaft-type parts, they are typically turned using a lathe.

[0003] When the existing pin is fine-machined on a lathe, a three-jaw chuck is usually used to clamp one end of the pin first, and then the other end of the pin is turned. After one end of the pin is processed, the pin needs to be removed from the three-jaw chuck, and then the processed end of the pin is clamped on the three-jaw chuck, and then the unprocessed end of the pin is turned. This processing method requires clamping and disassembling the pin twice to complete the processing of a pin, resulting in too low production efficiency of the pin, which is difficult to meet the needs of the staff. Summary of the Invention

[0004] In order to solve the above technical problems, a precision cutting device for pin production and processing is provided. This technical solution solves the problems raised in the above background technology.

[0005] In order to achieve the above objects, the technical solution adopted by the present invention is:

[0006] A precision cutting device for producing and processing pin shafts comprises a machine body, a box body is installed on the top rear side of the machine body, a mechanical arm for transferring external raw materials is provided on the top front side of the machine body, a first processing mechanism and a polishing mechanism are installed on the inner rear side of the box body, the polishing mechanism is located above the first processing mechanism, and a rotating mechanism is installed on the left and right sides of the inner side of the box body, and a second processing mechanism is provided on the inner front side of the box body, the first processing mechanism is used to clamp the raw material and open two groups of holes on the raw material, the rotating mechanism, the second processing mechanism and the polishing mechanism are used to automatically produce two pin shafts at a time, the top of the box body is rotatably connected to a baffle, and the top wall of the box body is provided with a motor for driving the baffle to rotate.

[0007] Preferably, the first processing mechanism includes two groups of fixed blocks welded to the rear side of the interior of the box body, a first threaded rod is rotatably connected between the two groups of fixed blocks, the threads opened at both ends of the first threaded rod have opposite rotation directions, both ends of the outer surface of the first threaded rod are threadedly connected to a movable frame and a movable plate, the movable frame is slidably connected to the outer surface of the first fixed rod, the two ends of the first fixed rod are respectively welded to the inner walls of the two groups of fixed blocks, and a first servo motor that drives the first threaded rod to rotate is installed on the outer side wall of one group of the fixed blocks.

[0008] Preferably, the first processing mechanism also includes a second threaded rod and a second fixed rod, the interior of the movable frame is rotatably connected to the first screw rod, the outer surface of the first screw rod is threadedly connected to the lifting plate, the lifting plate is slidably connected to the first guide rod, the first guide rod is fixedly installed inside the movable frame, a first stepper motor is provided on the top of the movable frame, the top of the first screw rod is fixedly connected to the output end of the first stepper motor, and a first electric push rod is installed on the front side of the lifting plate, the output end of the first electric push rod is fixedly installed on the connecting frame, the second threaded rod is rotatably connected to the connecting frame, the second fixed rod is welded in the connecting frame, two groups of clamping parts are slidably installed on the second fixed rod, the two groups of clamping parts are respectively threadedly connected to the two ends of the second threaded rod, and the threads opened at the two ends of the second threaded rod have opposite rotation directions, and a second servo motor that drives the second threaded rod to rotate is installed on the top of the connecting frame.

[0009] Preferably, a second electric push rod is installed on the front side of the movable plate, the output end of the second electric push rod is fixedly connected to a mounting piece, a first drive motor is installed inside the mounting piece, and the output end of the first drive motor is fixedly connected to a first drilling head.

[0010] Preferably, the rotating mechanism includes a second screw rod, a first movable block and a second movable block, the second screw rod is rotatably connected in the box body, the first movable block and the second movable block are threadedly connected to the second screw rod, the first movable block and the second movable block are both slidably connected to the second guide rod, the second guide rod is fixedly connected in the box body, the outer end of the second screw rod is fixedly installed on the output end of the second stepper motor, and the second stepper motor is arranged on the outside of the box body.

[0011] Preferably, the outer side of the first movable block is rotatably connected to a third electric push rod, the output end of the third electric push rod is fixedly installed with a second drilling head, the outer surface of the third electric push rod is fixedly connected with a first driven tooth, and a second driving motor is also installed on the outer side wall of the first movable block, and the output end of the second driving motor is fixedly connected with a first driving tooth that meshes with the first driven tooth.

[0012] Preferably, the outer side of the second movable block is rotatably connected to a fourth electric push rod, the output end of the fourth electric push rod is fixedly connected to the frame, and a third threaded rod is rotatably connected inside the frame, the threads opened at both ends of the third threaded rod have opposite rotation directions, and both ends of the outer surface of the third threaded rod are threadedly connected to abutments, a third servo motor is installed on the top of the frame, the top of the third threaded rod is fixedly installed on the output end of the third servo motor, and a third fixed rod is also welded in the frame, two groups of the abutments are slidably connected to the third fixed rod, and the outer surface of the fourth electric push rod is fixedly connected to a second driven tooth, a third driving motor is also installed on the outer side wall of the second movable block, and a second driving tooth is fixedly installed on the output end of the third driving motor, and the second driving tooth is meshed with the second driven tooth.

[0013] Preferably, the second processing mechanism includes a vertical frame welded to the front side of the interior of the box body, a third stepper motor is provided at the bottom end of the interior of the vertical frame, the output end of the third stepper motor is fixedly connected to the third screw rod, a third guide rod is welded inside the vertical frame, a lifting member is slidably connected to the third guide rod, the lifting member is threadedly connected to the outer surface of the third screw rod, and the top of the lifting member is connected to a fixed frame.

[0014] Preferably, a fourth screw rod is rotatably connected in the fixed frame, a cutting knife is threadedly connected to the fourth screw rod, the cutting knife is slidably connected to the fourth guide rod, the fourth guide rod is welded in the fixed frame, a fourth stepper motor is provided on the outside of the fixed frame, and the outer end of the fourth screw rod is fixedly mounted on the output end of the fourth stepper motor.

[0015] Preferably, the polishing mechanism includes a fifth screw rod, a fifth guide rod and a movable plate, a horizontal frame is welded on the inner top end of the box body, the fifth screw rod is rotatably connected to the inside of the horizontal frame, the fifth guide rod is fixedly installed in the horizontal frame, the movable plate is threadedly connected to the outer surface of the fifth screw rod, the movable plate and the fifth guide rod are slidably connected, and a fifth stepping motor for driving the fifth screw rod to rotate is provided on the outer side wall of the horizontal frame, the outer side of the movable plate is rotatably connected to the polishing plate and the driving wheel, a driven wheel is provided on the polishing plate, the driving wheel is connected to the driven wheel through a belt, and a fourth driving motor is also installed on the other outer side of the movable plate, and the driving wheel is fixedly connected to the output end of the fourth driving motor.

[0016] Compared with the prior art, the present invention provides a precision cutting device for pin production and processing, which has the following beneficial effects:

[0017] 1. The present invention is provided with a first processing mechanism, a rotating mechanism, a second processing mechanism and a polishing mechanism for coordinated use. First, small holes are opened on both end faces of the raw material, and then abutments are used to clamp the small holes on both ends, so as to clamp the raw material as a whole and drive the raw material to rotate for cutting, thereby forming a raw material with "large outer diameters at both ends and small outer diameters in the middle". Then, two groups of symmetrical holes are opened on the raw material, and then the raw material is cut along the middle to form two groups of pins. The polishing mechanism is used to remove the protrusions on the end faces of the pins after fracture, so that the end faces of the pins become smooth. Therefore, two pins can be produced at the same time through the device, and the whole process is automated, which is convenient and fast, thereby improving the production efficiency of the pins.

[0018] 2. The present invention clamps the small holes at both ends of the raw material so that there is no dead angle in the cutting of the entire outer wall of the raw material. The cutting process is formed in one step, and the small holes are also formed by high-precision processing. It also avoids the eccentricity of the raw material when it rotates during the cutting process, thereby improving the high precision of the pin production.

[0019] 3. All cutting and drilling steps in the present invention are carried out in a closed box, which prevents the debris generated during processing from splashing, makes it easier for workers to collect the debris, and further meets the needs of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 Schematic diagram of the internal structure of the box in the present invention;

[0022] Figure 3 It is a structural schematic diagram of the first processing mechanism in the present invention;

[0023] Figure 4 It is a structural schematic diagram of the first processing mechanism in the present invention from another perspective;

[0024] Figure 5 It is a structural schematic diagram of the rotating mechanism in the present invention;

[0025] Figure 6 Schematic diagram of the internal structure of the frame in the present invention;

[0026] Figure 7 Schematic diagram of the structure of the second processing mechanism in the present invention;

[0027] Figure 8 This is a structural diagram of the second processing mechanism in the present invention from another perspective;

[0028] Figure 9 Schematic diagram of the structure of the polishing mechanism of the present invention;

[0029] Figure 10 A schematic diagram of a protrusion according to an embodiment of the present invention;

[0030] Figure 11 This is a schematic diagram of a pin shaft automatically produced by the device in the present invention.

[0031] The numbers in the figure are:

[0032] 1. Machine body; 101. Robotic arm; 102. Box; 103. Baffle; 104. Motor; 105. Raw materials;

[0033] 2. First machining mechanism; 201. Fixed block; 202. First threaded rod; 203. First fixed rod; 204. First servo motor; 205. Movable frame; 206. First screw rod; 207. First guide rod; 208. First stepper motor; 209. Lifting plate; 210. First electric push rod; 211. Connecting frame; 212. Second threaded rod; 213. Second fixed rod; 214. Second servo motor; 215. Clamping member; 216. Movable plate; 217. Second electric push rod; 218. Mounting member; 219. First drive motor; 220. First drilling head;

[0034] 3. Rotating mechanism; 301. Second screw rod; 302. Second guide rod; 303. Second stepping motor; 304. First movable block; 305. Third electric push rod; 306. Second drilling head; 307. Second drive motor; 308. First drive tooth; 309. First driven tooth; 310. Second movable block; 311. Fourth electric push rod; 312. Frame; 313. Third threaded rod; 314. Third fixing rod; 315. Third servo motor; 316. Abutment; 317. Third drive motor; 318. Second drive tooth; 319. Second driven tooth;

[0035] 4. Second processing mechanism; 401. Vertical frame; 402. Third stepping motor; 403. Third screw rod; 404. Third guide rod; 405. Lifting member; 406. Fixed frame; 407. Fourth screw rod; 408. Fourth guide rod; 409. Fourth stepping motor; 410. Cutting blade;

[0036] 5. Polishing mechanism; 501. Horizontal frame; 502. Fifth screw rod; 503. Fifth guide rod; 504. Fifth stepping motor; 505. Moving plate; 506. Polishing plate; 507. Fourth driving motor; 508. Driving wheel; 509. Driven wheel; 510. Belt;

[0037] A-1. Bump. DETAILED DESCRIPTION

[0038] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0039] Example 1: Please refer to Figures 1-11 As shown, a precision cutting device for producing and processing pin shafts includes a body 1, a box body 102 is installed on the top rear side of the body 1, a robotic arm 101 for transferring external raw materials 105 is provided on the top front side of the body 1, a first processing mechanism 2 and a polishing mechanism 5 are installed on the inner rear side of the box body 102, the polishing mechanism 5 is located above the first processing mechanism 2, and a rotating mechanism 3 is installed on the left and right sides of the inside of the box body 102, and a second processing mechanism 4 is provided on the inner front side of the box body 102, the first processing mechanism 2 is used to clamp the raw material 105 and to open two groups of holes on the raw material 105, the rotating mechanism 3, the second processing mechanism 4 and the polishing mechanism 5 are used to automatically produce two pin shafts at a time, the top of the box body 102 is rotatably connected to a baffle 103, and the top wall of the box body 102 is provided with a motor 104 for driving the baffle 103 to rotate.

[0040] Example 2: Please refer to Figure 3 As shown, the first processing mechanism 2 includes two groups of fixed blocks 201 welded to the rear side of the inside of the box body 102, and a first threaded rod 202 is rotatably connected between the two groups of fixed blocks 201. The threads opened at both ends of the first threaded rod 202 have opposite rotation directions, and both ends of the outer surface of the first threaded rod 202 are threadedly connected with a movable frame 205 and a movable plate 216. The movable frame 205 is slidably connected to the outer surface of the first fixed rod 203, and the two ends of the first fixed rod 203 are respectively welded to the inner walls of the two groups of fixed blocks 201, and a first servo motor 204 that drives the first threaded rod 202 to rotate is installed on the outer wall of one group of fixed blocks 201.

[0041] Please refer to Figure 4As shown, the first processing mechanism 2 also includes a second threaded rod 212 and a second fixed rod 213. The interior of the movable frame 205 is rotatably connected to the first screw rod 206. The outer surface of the first screw rod 206 is threadedly connected to the lifting plate 209. The lifting plate 209 is slidably connected to the first guide rod 207. The first guide rod 207 is fixedly installed inside the movable frame 205. A first stepper motor 208 is provided on the top of the movable frame 205. The top of the first screw rod 206 is fixedly connected to the output end of the first stepper motor 208, and the front side of the lifting plate 209 is installed. There is a first electric push rod 210, and a connecting frame 211 is fixedly installed at the output end of the first electric push rod 210. The second threaded rod 212 is rotatably connected to the connecting frame 211. The second fixed rod 213 is welded in the connecting frame 211. Two groups of clamping members 215 are slidably installed on the second fixed rod 213. The two groups of clamping members 215 are respectively threadedly connected to the two ends of the second threaded rod 212, and the threads opened at the two ends of the second threaded rod 212 have opposite rotation directions. A second servo motor 214 that drives the second threaded rod 212 to rotate is installed on the top of the connecting frame 211.

[0042] Please refer to Figure 3 As shown, a second electric push rod 217 is installed on the front side of the movable plate 216, and the output end of the second electric push rod 217 is fixedly connected to a mounting member 218. A first drive motor 219 is installed inside the mounting member 218, and the output end of the first drive motor 219 is fixedly connected to a first drilling head 220.

[0043] Those skilled in the art can understand that, by driving the first threaded rod 202 to rotate through the output end of the first servo motor 204, the two groups of movable frames 205 are moved closer to or away from each other and the two groups of movable plates 216 are moved closer to or away from each other, thereby driving the two groups of connecting frames 211 closer to or away from each other and driving the two groups of first drilling heads 220 closer to or away from each other; and by driving the first screw rod 206 to rotate through the output end of the first stepper motor 208, the lifting plate 209 is reciprocated up and down, thereby driving the connecting frame 211 to reciprocate up and down; and by driving the second threaded rod 212 to rotate through the output end of the second servo motor 214, the two groups of clamping members 215 are moved closer to or away from each other.

[0044] Example 3: Please refer to Figure 5 As shown, the rotating mechanism 3 includes a second screw rod 301, a first movable block 304 and a second movable block 310. The second screw rod 301 is rotatably connected in the box body 102. The first movable block 304 and the second movable block 310 are threadedly connected to the second screw rod 301. The first movable block 304 and the second movable block 310 are both slidably connected to the second guide rod 302. The second guide rod 302 is fixedly connected in the box body 102. The outer end of the second screw rod 301 is fixedly mounted on the output end of the second stepper motor 303. The second stepper motor 303 is arranged on the outside of the box body 102.

[0045] Please refer to Figure 5 As shown, the outer side of the first movable block 304 is rotatably connected to the third electric push rod 305, the output end of the third electric push rod 305 is fixedly installed with the second drilling head 306, the outer surface of the third electric push rod 305 is fixedly connected with the first driven tooth 309, and the second drive motor 307 is also installed on the outer side wall of the first movable block 304, and the output end of the second drive motor 307 is fixedly connected with the first drive tooth 308 which meshes with the first driven tooth 309.

[0046] Please refer to Figure 6 As shown, the outer side of the second movable block 310 is rotatably connected to the fourth electric push rod 311, the output end of the fourth electric push rod 311 is fixedly connected to the frame 312, and the third threaded rod 313 is rotatably connected inside the frame 312. The threads opened at both ends of the third threaded rod 313 rotate in opposite directions, and both ends of the outer surface of the third threaded rod 313 are threadedly connected to abutments 316. A third servo motor 315 is installed on the top of the frame 312, and the top of the third threaded rod 313 is fixedly installed on the output end of the third servo motor 315. A third fixed rod 314 is also welded inside the frame 312. Two sets of abutments 316 are both slidably connected to the third fixed rod 314, and the outer surface of the fourth electric push rod 311 is fixedly connected to the second driven gear 319. A third drive motor 317 is also installed on the outer wall of the second movable block 310. A second drive gear 318 is fixedly installed on the output end of the third drive motor 317, and the second drive gear 318 is meshed with the second driven gear 319.

[0047] Those skilled in the art can understand that, the second screw rod 301 is driven to rotate by the output end of the second stepper motor 303, so that the first movable block 304 and the second movable block 310 reciprocate back and forth, thereby driving the second drilling head 306 and the two groups of abutment members 316 to reciprocate back and forth; the first driving tooth 308 is driven to rotate by the output end of the second drive motor 307, so that the first driven tooth 309 and the third electric push rod 305 rotate as a whole, thereby driving the second drilling head 306 to rotate; and the third threaded rod 313 is driven to rotate by the output end of the third servo motor 315, so that the two groups of abutment members 316 approach or move away from each other, and the second driving tooth 318 is driven to rotate by the output end of the third drive motor 317, so that the second driven tooth 319 and the fourth electric push rod 311 rotate as a whole, driving the frame 312 to rotate, thereby driving the two groups of abutment members 316 to rotate.

[0048] Example 4: Please refer to Figure 7As shown, the second processing mechanism 4 includes a vertical frame 401 welded to the front side of the interior of the box body 102, a third stepper motor 402 is provided at the bottom end of the interior of the vertical frame 401, the output end of the third stepper motor 402 is fixedly connected to the third screw rod 403, a third guide rod 404 is welded to the interior of the vertical frame 401, a lifting member 405 is slidably connected to the third guide rod 404, the lifting member 405 is threadedly connected to the outer surface of the third screw rod 403, and the top of the lifting member 405 is connected to the fixed frame 406.

[0049] Please refer to Figure 8 As shown, a fourth screw rod 407 is rotatably connected inside the fixed frame 406, a cutting knife 410 is threadedly connected to the fourth screw rod 407, the cutting knife 410 is slidably connected to the fourth guide rod 408, the fourth guide rod 408 is welded inside the fixed frame 406, a fourth stepper motor 409 is provided on the outside of the fixed frame 406, and the outer end of the fourth screw rod 407 is fixedly mounted on the output end of the fourth stepper motor 409.

[0050] Those skilled in the art can understand that, by driving the third screw rod 403 to rotate through the output end of the third stepper motor 402, the lifting member 405 slides back and forth along the surface of the third guide rod 404, thereby driving the cutting knife 410 to reciprocate up and down; and by driving the fourth screw rod 407 to rotate through the output end of the fourth stepper motor 409, the cutting knife 410 is able to reciprocate left and right in the horizontal direction.

[0051] Example 5: Please refer to Figure 9 As shown, the polishing mechanism 5 includes a fifth screw rod 502, a fifth guide rod 503 and a movable plate 505. A horizontal frame 501 is welded to the inner top of the box body 102. The fifth screw rod 502 is rotatably connected to the inside of the horizontal frame 501. The fifth guide rod 503 is fixedly installed in the horizontal frame 501. The movable plate 505 is threadedly connected to the outer surface of the fifth screw rod 502. The movable plate 505 is slidably connected to the fifth guide rod 503, and a fifth stepping motor 504 for driving the fifth screw rod 502 to rotate is provided on the outer side wall of the horizontal frame 501. The outer side of the movable plate 505 is rotatably connected to the polishing plate 506 and the driving wheel 508. The polishing plate 506 is provided with a driven wheel 509. The driving wheel 508 is transmission-connected to the driven wheel 509 through a belt 510. A fourth driving motor 507 is also installed on the other outer side of the movable plate 505, and the driving wheel 508 is fixedly connected to the output end of the fourth driving motor 507.

[0052] Those skilled in the art can understand that, by driving the fifth screw rod 502 to rotate through the output end of the fifth stepper motor 504, the movable plate 505 is caused to reciprocate left and right in the horizontal direction, thereby driving the polishing plate 506 to reciprocate left and right in the horizontal direction; and by driving the driving wheel 508 to rotate through the output end of the fourth driving motor 507, the driven wheel 509 is rotated under the drive of the belt 510, thereby driving the polishing plate 506 to rotate.

[0053] In order to clearly describe the working principle of the present invention, we use Figure 1 For the purpose of illustration, the purpose of the present invention is to automatically produce two sets of pins at a time through a set of raw materials 105, and the pin products produced are shown in the schematic diagram. Figure 11 As shown, the details are as follows:

[0054] S1. The output end of the motor 104 drives the baffle 103 to rotate, opening the top opening of the box 102. The mechanical arm 101 transfers the external raw material 105 to the middle position inside the box 102. The raw material 105 is placed horizontally. The output end of the first servo motor 204 drives the first threaded rod 202 to rotate, thereby driving the two sets of connecting frames 211 to move closer to each other and move to the two ends of the raw material 105.

[0055] S2. The second threaded rod 212 is driven to rotate by the output end of the second servo motor 214 at the top of the connection frame 211, so that the two sets of clamping members 215 connected to the same second threaded rod 212 approach each other, thereby clamping and fixing the two ends of the raw material 105. After that, the robot arm 101 releases the clamping of the raw material 105 and drives the baffle 103 to rotate through the output end of the motor 104 to close the opening at the top of the box body 102.

[0056] S3. The output ends of the second stepping motors 303 on both sides synchronously drive the second screw rods 301 to rotate, so that the second drilling heads 306 on both sides move to the center positions of the circles at the two ends of the raw material 105 respectively, and the second drilling heads 306 and the center points of the end faces of the raw material 105 are on the same horizontal straight line. Then, the output end of the second driving motor 307 drives the second drilling head 306 to rotate, and at the same time drives the output end of the third electric push rod 305 to extend, so that the second drilling head 306 also approaches the end face of the raw material 105, thereby synchronously realizing the opening of small holes on the two end faces of the raw material 105. Since both ends of the raw material 105 are clamped, the stability of the drilling is improved, and there will be no deviation, so that small holes can be opened at the center positions of the two end faces of the raw material 105 with high precision.

[0057] S4. Under the action of the output end of the second stepper motor 303, the two groups of abutment members 316 on both sides are respectively moved to the positions of the small holes on both sides. The two groups of abutment members 316 on both sides are in a fitted state. Driven by the extension of the output ends of the fourth electric push rods 311 on both sides, the two groups of abutment members 316 in a fitted state on both sides are respectively extended into the inside of the small holes on both sides. Secondly, under the action of the rotation of the output ends of the third servo motors 315 on both sides, the two groups of abutment members 316 on both sides are in a state of moving away from each other, respectively abutting against the inner walls of the small holes on both sides, thereby clamping and fixing the two ends of the raw material 105. At this time, the clamping member 215 releases the fixation on the raw material 105, and the output end of the first electric push rod 210 retracts and drives the clamping member 215 to move backward.

[0058] S5, and then the output ends of the third driving motors 317 on both sides drive the second driving teeth 318 to rotate, thereby driving the clamped raw material 105 to rotate, and the output end of the third stepping motor 402 drives the third screw rod 403 to rotate, so that the lifting member 405 moves upward, and the cutting blade 410 moves upward to contact the outer wall of the raw material 105, and the output end of the fourth stepping motor 409 drives the fourth screw rod 407 to rotate, so that the cutting blade 410 moves left and right in the horizontal direction, thereby realizing the cutting of the raw material 105 as a whole, forming a raw material 105 with "large outer diameters at both ends and small outer diameters in the middle", and the cutting process is formed in one step. By clamping the small holes at both ends of the raw material 105, there is no dead angle in the cutting of the entire outer wall of the raw material 105, and the small holes are formed by the above-mentioned high-precision opening, which also avoids the eccentricity of the raw material 105 when it rotates during the cutting process, and further improves the high precision of the pin production;

[0059] S6: The cutting blade 410 is reset, and the output end of the first servo motor 204 is used to drive the first threaded rod 202 to rotate again, so that the two sets of connecting frames 211 approach each other and drive the two sets of first drilling heads 220 to approach each other. The two sets of first drilling heads 220 are respectively located at the positions to be drilled in the material 105. The output end of the second servo motor 214 at the top of the connecting frame 211 is used to drive the second threaded rod 212 to rotate again, so that the two sets of clamping members 215 connected to the same second threaded rod 212 approach each other, thereby clamping and fixing the two ends of the material 105.

[0060] S7. The output ends of the two sets of first driving motors 219 drive the two sets of first drilling heads 220 to rotate, and at the same time drive the output end of the second electric push rod 217 to extend and drive the first drilling heads 220 to move forward, thereby achieving two sets of symmetrical holes on the entire raw material 105. Since the positions of the holes are close to the positions of the clamping members 215 during drilling, the overall force on the raw material 105 is relatively symmetrical and uniform, which improves the stability of the drilling and prevents deviation. It also achieves high-precision drilling, further improving the high-precision production of the pin.

[0061] S8, the clamping member 215 releases the fixation on the raw material 105 again, and the output ends of the third drive motors 317 on both sides drive the second drive teeth 318 to rotate again, thereby driving the clamped raw material 105 to rotate, and the output end of the fourth stepper motor 409 drives the fourth screw rod 407 to rotate, so that the cutting blade 410 moves horizontally to the middle position directly below the raw material 105, and the output end of the third stepper motor 402 drives the cutting blade 410 to continuously move upward, thereby achieving cutting of the raw material 105 along the middle. Since the raw material 105 is in a rotating state, it is very likely that the raw material 105 will break without the top of the cutting blade 410 reaching the height position of the center of the raw material 105, and after the break, a bulge A-1 will appear on the end surface, which is relatively uneven;

[0062] S9, the two sets of clamping members 215 on both sides clamp and fix the two sets of pins formed after the breakage again, and the two sets of abutment members 316 on both sides release the fixation of the two sets of pins, and drive the first screw rod 206 to rotate through the output end of the first stepper motor 208 on both sides in turn, so that the connecting frame 211 moves upward, thereby driving the clamped pins to move upward to a height that is compatible with the polishing plate 506 in turn, and under the action of the output end of the fifth stepper motor 504, the polishing plate 506 contacts the protrusion A-1 on the end face of the pin, and the polishing plate 506 is pressed against the polishing plate 506. 06 rotates under the action of the output end of the fourth drive motor 507, thereby removing the protrusion A-1 on the end face of the pin shaft, making the end face of the pin shaft smooth, and this process is carried out step by step for the two pin shafts, not synchronously. Therefore, two pin shafts can be produced at the same time through this device, and the whole process is automated, which is convenient and fast. In addition, all cutting and drilling steps are carried out in a closed box 102, which prevents the debris generated during processing from splashing, makes it convenient for the staff to collect the debris, and further meets the needs of the staff.

[0063] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision cutting device for producing and processing pins, comprising a body (1), characterized in that: A box (102) is installed on the top rear side of the machine body (1), and a mechanical arm (101) for transferring external raw materials (105) is provided on the top front side of the machine body (1). A first processing mechanism (2) and a polishing mechanism (5) are installed on the inner rear side of the box body (102), and the polishing mechanism (5) is located above the first processing mechanism (2). Rotating mechanisms (3) are installed on both the left and right sides of the box body (102), and a second processing mechanism (4) is provided on the inner front side of the box body (102). The first processing mechanism (2) is used to clamp the raw materials (105) and to open two groups of holes on the raw materials (105). The rotating mechanism (3), the second processing mechanism (4) and the polishing mechanism (5) cooperate to automatically produce two pins at a time. The top of the box body (102) is rotatably connected to a baffle (103), and a motor (104) for driving the baffle (103) to rotate is provided on the top wall of the box body (102); The first processing mechanism (2) comprises two groups of fixed blocks (201) welded to the rear side of the interior of the box body (102), a first threaded rod (202) being rotatably connected between the two groups of fixed blocks (201), the threads provided at both ends of the first threaded rod (202) being rotated in opposite directions, a movable frame (205) and a movable plate (216) being threadedly connected at both ends of the outer surface of the first threaded rod (202), the movable frame (205) being slidably connected to the outer surface of the first fixed rod (203), the two ends of the first fixed rod (203) being respectively welded to the inner walls of the two groups of fixed blocks (201), and a first servo motor (204) for driving the first threaded rod (202) to rotate is installed on the outer wall of one group of the fixed blocks (201); The first processing mechanism (2) further comprises a second threaded rod (212) and a second fixed rod (213); the interior of the movable frame (205) is rotatably connected to a first screw rod (206); the outer surface of the first screw rod (206) is threadedly connected to a lifting plate (209); the lifting plate (209) is slidably connected to a first guide rod (207); the first guide rod (207) is fixedly mounted inside the movable frame (205); a first stepper motor (208) is provided on the top of the movable frame (205); the top of the first screw rod (206) is fixedly connected to the output end of the first stepper motor (208); and the front side of the lifting plate (209) is provided with a first stepper motor (208). A first electric push rod (210) is provided, wherein a connecting frame (211) is fixedly installed at the output end of the first electric push rod (210), the second threaded rod (212) is rotatably connected to the connecting frame (211), the second fixed rod (213) is welded to the connecting frame (211), two groups of clamping members (215) are slidably installed on the second fixed rod (213), the two groups of clamping members (215) are respectively threadedly connected to the two ends of the second threaded rod (212), and the threads opened at the two ends of the second threaded rod (212) have opposite rotation directions, and a second servo motor (214) for driving the second threaded rod (212) to rotate is installed on the top of the connecting frame (211); A second electric push rod (217) is installed on the front side of the movable plate (216); an output end of the second electric push rod (217) is fixedly connected to a mounting member (218); a first drive motor (219) is installed inside the mounting member (218); and an output end of the first drive motor (219) is fixedly connected to a first drilling head (220); The polishing mechanism (5) comprises a fifth screw rod (502), a fifth guide rod (503) and a movable plate (505); a transverse frame (501) is welded to the top end of the interior of the box body (102); the fifth screw rod (502) is rotatably connected to the interior of the transverse frame (501); the fifth guide rod (503) is fixedly installed in the transverse frame (501); the movable plate (505) is threadedly connected to the outer surface of the fifth screw rod (502); the movable plate (505) is slidably connected to the fifth guide rod (503); and the outer wall of the transverse frame (501) A fifth stepping motor (504) is provided on the movable plate (505) for driving the fifth screw rod (502) to rotate. The outer side of the movable plate (505) is rotatably connected to a polishing plate (506) and a driving wheel (508). A driven wheel (509) is provided on the polishing plate (506). The driving wheel (508) is connected to the driven wheel (509) through a belt (510). A fourth driving motor (507) is also installed on the other outer side of the movable plate (505). The driving wheel (508) is fixedly connected to the output end of the fourth driving motor (507).

2. A precision cutting device for producing and processing a pin according to claim 1, characterized in that: The rotating mechanism (3) comprises a second screw rod (301), a first movable block (304) and a second movable block (310), wherein the second screw rod (301) is rotatably connected in the box body (102), the first movable block (304) and the second movable block (310) are threadedly connected to the second screw rod (301), the first movable block (304) and the second movable block (310) are both slidably connected to the second guide rod (302), the second guide rod (302) is fixedly connected in the box body (102), the outer end of the second screw rod (301) is fixedly mounted on the output end of the second stepping motor (303), and the second stepping motor (303) is arranged outside the box body (102).

3. A precision cutting device for producing and processing a pin according to claim 2, characterized in that: The outer side of the first movable block (304) is rotatably connected to a third electric push rod (305), an output end of the third electric push rod (305) is fixedly mounted with a second drilling head (306), an outer surface of the third electric push rod (305) is fixedly mounted with a first driven tooth (309), a second drive motor (307) is further mounted on the outer side wall of the first movable block (304), and an output end of the second drive motor (307) is fixedly mounted with a first drive tooth (308) meshing with the first driven tooth (309).

4. A precision cutting device for producing and processing a pin according to claim 2, characterized in that: The outer side of the second movable block (310) is rotatably connected to a fourth electric push rod (311), the output end of the fourth electric push rod (311) is fixedly connected to the frame (312), the inner side of the frame (312) is rotatably connected to a third threaded rod (313), the threads at both ends of the third threaded rod (313) are rotated in opposite directions, and both ends of the outer surface of the third threaded rod (313) are threadedly connected to abutment members (316), a third servo motor (315) is installed on the top of the frame (312), and the top of the third threaded rod (313) is fixedly installed on the third servo motor (315). The output end of the three servo motors (315) is connected to the frame (312), and a third fixed rod (314) is welded inside the frame (312). The two sets of abutment members (316) are slidably connected to the third fixed rod (314). The outer surface of the fourth electric push rod (311) is fixedly connected to the second driven tooth (319). The outer side wall of the second movable block (310) is also installed with a third driving motor (317). The output end of the third driving motor (317) is fixedly installed with a second driving tooth (318), and the second driving tooth (318) is engaged with the second driven tooth (319).

5. The precision cutting device for producing and processing a pin according to claim 1, characterized in that: The second processing mechanism (4) comprises a vertical frame (401) welded to the front side of the interior of the box body (102); a third stepping motor (402) is provided at the bottom end of the interior of the vertical frame (401); an output end of the third stepping motor (402) is fixedly connected to a third screw rod (403); a third guide rod (404) is welded inside the vertical frame (401); a lifting member (405) is slidably connected to the third guide rod (404); the lifting member (405) is threadedly connected to the outer surface of the third screw rod (403); and a fixed frame (406) is connected to the top of the lifting member (405).

6. A precision cutting device for producing and processing a pin according to claim 5, characterized in that: A fourth screw rod (407) is rotatably connected in the fixed frame (406), a cutting blade (410) is threadedly connected to the fourth screw rod (407), and the cutting blade (410) is slidably connected to a fourth guide rod (408). The fourth guide rod (408) is welded in the fixed frame (406), and a fourth stepping motor (409) is provided outside the fixed frame (406). The outer end of the fourth screw rod (407) is fixedly mounted on the output end of the fourth stepping motor (409).

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