An automatic production line for centerless grinding of slender shafts

Abstract

The present invention discloses an automatic production line for centerless grinding of slender shafts, comprising a feeding device, a centerless grinder and a blanking device, wherein the feeding device, the centerless grinder and the blanking device are arranged in sequence from back to front, the blanking device comprises a blanking conveying mechanism and a stacking mechanism located at the output end of the blanking conveying mechanism, the stacking mechanism comprises a guide trough I, a guide trough II, a rotary drive mechanism, a reeling mechanism, a spacer roll, a spacer channel and a workpiece storage mechanism, the lower end of the guide trough I is provided with a rotary drive mechanism, the rotary drive mechanism is provided with an inclined guide trough II, the high end of the guide trough II is provided with an unwinding mechanism, and compared with the prior art, the automatic production line can be conveniently used and saves manpower.

Description

Technical field

[0001] The present invention relates to the technical field of machine tools, in particular to the technical field of an automatic production line for centerless grinding of slender shafts. [Background Technology]

[0002] A centerless grinder is a type of grinding machine that does not require the workpiece's axis to be positioned for grinding. It is primarily used for grinding the outer cylindrical surfaces of workpieces. A centerless grinder consists of three main components: a grinding wheel, a regulating wheel, and a workpiece support. The grinding wheel performs the actual grinding, while the regulating wheel controls the workpiece's rotation and feed speed. The workpiece support supports the workpiece during grinding.

[0003] The lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a lifting mechanism, and the lifting mechanism is a step of liftings. The lifting mechanism is a step of lifting. The lifting mechanism is a step of lifting. The lifting mechanism is a step of lifting. At this time, the shift plate plays the role of shifting the workpiece away from the unloading rail, and the workpiece then flows down the lower slide. It cannot realize automatic stacking of workpieces. In addition, when spacers need to be placed between each layer of workpieces, manual operation is required, which is inconvenient and wastes manpower. [Summary of the invention]

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide an automatic production line for centerless grinding of slender shafts, which is easy to use and saves manpower.

[0005] To achieve the above-mentioned purpose, the present invention proposes an automatic production line for centerless grinding of slender shafts, comprising a feeding device, a centerless grinder and a unloading device, wherein the feeding device, the centerless grinder and the unloading device are arranged in sequence from back to front, and the unloading device comprises a unloading conveying mechanism and a stacking mechanism located at the output end of the unloading conveying mechanism, the stacking mechanism comprises a guide trough I, a guide trough II, a rotary drive mechanism, an unwinding mechanism, a spacer roll, a spacer channel and a workpiece storage mechanism, a rotary drive mechanism is provided at the lower end of the guide trough I, a tilted guide trough II is provided on the rotary drive mechanism, an unwinding mechanism is provided at the high end of the guide trough II, a spacer roll is provided on the unwinding mechanism, a spacer channel is provided at the bottom of the guide trough II, the spacer tape unwound from the spacer roll passes through the spacer channel, and the workpiece storage mechanism is located below the guide trough II.

[0006] Preferably, the rotary drive mechanism includes two support bodies, a motor and two connecting shafts, the lower ends of the support bodies are rotatably connected to the guide trough II through the connecting shafts, one of the support bodies is provided with a motor, and the driving end of the motor is fixedly connected to the corresponding connecting shaft.

[0007] Preferably, the cross section of the material guide trough II is in an I-shape, and a material guide trough III is provided on the lower trough body of the material guide trough II.

[0008] Preferably, the inner bottom surfaces of the two trough bodies of the material guiding trough II and the inner bottom surface of the material guiding trough III are both provided with a buffer layer.

[0009] Preferably, the unwinding mechanism includes two supports and an unwinding shaft, and the unwinding shaft is passed through the two supports and fixedly connected to the corresponding supports by hand screws.

[0010] Preferably, the workpiece storage mechanism includes several worm gear lifts, two electric screw slide modules, a support seat, a placement seat, several support feet, several positioning grooves, several baffles and a positioning seat. The slide of the electric screw slide module is provided with a base, the base is provided with a worm gear lift, the worm gear lift is provided with a support seat, the lower end of the placement seat is provided with support feet, the upper end of the support seat is provided with positioning grooves that correspond to and cooperate with the support feet, the upper end of the placement seat is provided with a positioning seat, the positioning seat is provided with several arc grooves that are arranged in sequence and cooperate with the workpiece, two baffles are passed through the front and rear ends of the placement seat, the lower ends of the baffles pass through the support seat, and the base is provided with a top rod that corresponds to the baffle and presses against the lower end of the corresponding baffle.

[0011] Preferably, the unloading conveying mechanism includes a frame, a conveying plate chain, two baffles I and a pushing mechanism, the frame is provided with a driving sprocket and a driven sprocket, the driving sprocket and the driven sprocket are provided with a conveying plate chain, the frame is provided with two baffles I located above the upper plate chain body of the conveying plate chain, and the frame is provided with a pushing mechanism located in front of the baffle I.

[0012] Preferably, the pushing mechanism includes a push rod motor, a push plate, a baffle II and a sensor. The driving end of the push rod motor is provided with a push plate. The lower end of the push plate is flush with the lower end of the upper baffle I. The front end of the push plate is provided with a vertically arranged baffle II. The upper side of the front end of the push plate is provided with a sensor. The front end of the lower baffle I is provided with a baffle III parallel to the baffle II.

[0013] Preferably, the feeding device includes a frame, a feeding motor, a rotating shaft and several feeding components, the frame is provided with a feeding motor and a rotating shaft driven by it, the frame is provided with a feeding component, the feeding component includes two rotating wheels, the two rotating wheels are both inclined forward, a driven pulley is provided on the front side of one rotating wheel, and a driven pulley is provided on the rear side of the other rotating wheel, a driving pulley corresponding to the driven pulley is provided on the rotating shaft, and an elastic transmission belt is provided on the driving pulley and the corresponding driven pulley.

[0014] Preferably, the feed assembly also includes a mounting seat, two support arms, bolts and nuts, the lower ends of the support arms are hingedly connected to the mounting seat, the upper ends of the support arms are provided with rotating wheels, the lower ends of the bolts are rotatably connected to the mounting seat, the bolts are provided with nuts, and both ends of the nuts are hingedly connected to the corresponding support arms through connecting arms.

[0015] Beneficial effects of the present invention: The present invention is provided with a rotary drive mechanism at the lower end of the guide trough I, a tilted guide trough II is provided on the rotary drive mechanism, a unwinding mechanism is provided at the high end of the guide trough II, a spacer roll is provided on the unwinding mechanism, a spacer channel is provided at the bottom of the guide trough II, the spacer unwound from the spacer roll passes through the spacer channel, and the workpiece storage mechanism is located below the guide trough II. Compared with the prior art, the present invention is easy to use and saves manpower.

[0016] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings.

Brief Description of the Drawings

[0017] Figure 1 This is a schematic structural diagram of an automatic production line for centerless grinding of slender shafts according to the present invention;

[0018] Figure 2 yes Figure 1 A magnified view of middle A;

[0019] Figure 3 It is the arrangement diagram of the rotating wheel;

[0020] Figure 4 It is a partial top view of the material feeding and conveying mechanism;

[0021] Figure 5 It is a partial measurement view of the stacking mechanism;

[0022] Figure 6 This is a schematic diagram of the guide trough II when stacking from front to back.

[0023] In the figure: 1-feeding device, 2-centerless grinder, 3-unloading device, 11-frame, 12-feeding motor, 13-rotating shaft, 14-feeding assembly, 31-unloading conveying mechanism, 32-stacking mechanism, 141-rotating wheel, 142-driven pulley, 143-driving pulley, 144-elastic transmission belt, 145-mounting seat, 146-support arm, 147-bolt, 148-nut, 149 -Connecting arm, 321-Guide trough I, 322-Guide trough II, 323-Rotary drive mechanism, 324-Unwinding mechanism, 325-Tape reel, 326-Tape channel, 327-Workpiece storage mechanism, 328-Buffer layer, 329-Guide trough III, 3231-Support body, 3232-Motor, 3233-Connecting shaft, 3241-Support, 3242-Unwinding shaft, 3243-Hand screw Screws, 3270-base, 3271-worm gear lift, 3272-electric screw slide module, 3273-support seat, 3274-placement seat, 3275-positioning slot, 3276-stop rod, 3277-support foot, 3278-positioning seat, 3279-arc slot, 32710-top rod, 310-frame, 311-conveyor plate chain, 312-stop plate I, 313-pushing mechanism , 314-driving sprocket, 315-driven sprocket, 316-baffle III, 3131-push rod motor, 3132-push plate, 3133-baffle II, 3134-sensor, 141-rotating wheel, 142-driven pulley, 143-driving pulley, 144-elastic transmission belt, 145-mounting seat, 146-support arm, 147-bolt, 148-nut, 149-connecting arm. [Specific implementation method]

[0024] See Figure 1, Figure 2, Figure 3, Figure 4, Figure 5 and Figure 6The present invention provides an automatic production line for centerless grinding of slender shafts, comprising a feeding device 1, a centerless grinder 2 and a blanking device 3, wherein the feeding device 1, the centerless grinder 2 and the blanking device 3 are arranged in sequence from back to front, and the blanking device 3 comprises a blanking conveying mechanism 31 and a stacking mechanism 32 located at the output end of the blanking conveying mechanism 31, the stacking mechanism 32 comprises a guide trough I321, a guide trough II322, a rotary drive mechanism 323, a unwinding mechanism 324, a spacer roll 325, a spacer roll channel 326 and a workpiece storage mechanism 327, a rotary drive mechanism 323 is provided at the lower end of the guide trough I321, a tilted guide trough II322 is provided on the rotary drive mechanism 323, a high end of the guide trough II322 is provided with an unwinding mechanism 324, a spacer roll 325 is provided on the unwinding mechanism 324, and a spacer roll 325 avoidance gap 320 is provided at the lower end of the guide trough I321. The bottom of the guide trough II322 is provided with a tape channel 326, and the tape unwound from the tape roll 325 passes through the tape channel 326. The workpiece storage mechanism 327 is located below the guide trough II322. The rotary drive mechanism 323 includes two support bodies 3231, a motor 3232 and two connecting shafts 3233. The lower ends of the support bodies 3231 are rotatably connected to the guide trough II322 through the connecting shafts 3233. One of the support bodies 3231 is provided with a motor 3232. The driving end of the motor 3232 is fixedly connected to the corresponding connecting shaft 3233. The cross section of the guide trough II322 is in the shape of an "I". A guide trough III329 is provided on the lower trough body of the guide trough II322. The inner bottom surfaces of the two trough bodies of the guide trough II322 and the inner bottom surface of the guide trough III329 are both provided with a buffer layer 328. The unwinding mechanism 324 includes two supports 3241 and an unwinding shaft 3242. The unwinding shaft 3242 is inserted through the two supports 3241. The workpiece storage mechanism 327 is fixedly connected to the corresponding support 3241 through a hand screw 3243. The workpiece storage mechanism 327 includes a plurality of worm gear elevators 3271, two electric screw slide modules 3272, a support seat 3273, a placement seat 3274, a plurality of positioning grooves 3275, a plurality of blocking rods 3276, a plurality of supporting feet 3277 and a positioning seat 3278. The slide of the electric screw slide module 3272 is provided with a base 3270, and the base 3270 is provided with a worm gear elevator 327 1. The worm gear elevator 3271 is provided with a support seat 3273, the lower end of the placement seat 3274 is provided with a support foot 3274, the upper end of the support seat 3273 is provided with a positioning groove 3275 corresponding to and cooperating with the support foot 3274, the upper end of the placement seat 3274 is provided with a positioning seat 3278, and the positioning seat 3278 is provided with a plurality of arc grooves 3279 arranged in sequence and cooperating with the workpiece. Two blocking rods 3276 are penetrated at the front and rear ends of the placement seat 3274.The lower ends of the blocking rods 3276 pass through the support seats 3273, and the base 3270 is provided with a top rod 32710 corresponding to the blocking rods 3276 and pressing on the lower ends of the corresponding blocking rods 3276. The unloading conveying mechanism 31 includes a frame 310, a conveying plate chain 311, two baffles I312 and a pushing mechanism 313. The frame 310 is provided with a driving sprocket 314 and a driven sprocket 315. The driving sprocket 314 and the driven sprocket 315 are provided with a conveying plate chain 311, and the frame 310 is provided with two baffles I312 located above the upper plate chain body of the conveying plate chain 311. The frame 310 is provided with a pushing mechanism 313 located in front of the baffle I312, and the pushing mechanism 313 includes a push rod motor 3131, a pushing plate 3132, a baffle II3133 and a sensor 3134. The driving end of the push rod motor 3131 is provided with a pushing plate 3132, and the lower end of the pushing plate 3132 is flush with the lower end of the baffle I312 above. The front end of the pushing plate 3132 is provided with a vertically arranged baffle II3133, and the upper side of the front end of the pushing plate 3132 is provided with a sensor 3134, and the front end of the baffle I312 below is provided with a baffle II3 133 mutually parallel baffles III316, the feeding device 1 includes a frame 11, a feeding motor 12, a rotating shaft 13 and a plurality of feeding components 14, the frame 11 is provided with a feeding motor 12 and a rotating shaft 13 driven by the feeding motor 12, the frame 11 is provided with a feeding component 14, the feeding component 14 includes two rotating wheels 141, the two rotating wheels 141 are both tilted forward, the front side of one rotating wheel 141 is provided with a driven pulley 142, the rear side of the other rotating wheel 141 is provided with a driven pulley 142, the rotating shaft 13 is provided with a driven pulley 142 Corresponding to the driving pulley 143, the driving pulley 143 and the corresponding driven pulley 142 are provided with an elastic transmission belt 144. The feed assembly 14 also includes a mounting seat 145, two support arms 146, a bolt 147 and a nut 148. The lower ends of the support arms 146 are hingedly connected to the mounting seat 145, and the upper ends of the support arms 146 are provided with a rotating wheel 141. The lower end of the bolt 147 is rotatably connected to the mounting seat 145. The bolt 147 is provided with a nut 148. Both ends of the nut 148 are hingedly connected to the corresponding support arm 146 through a connecting arm 149.

[0025] The two upper trough bodies of the guide trough II322 are both provided with positioning guide plates 5, and the inner sides of the two support bodies 3231 are both provided with positioning guide plates II6.

[0026] Working process of the present invention:

[0027] In the process of operation of the automatic centerless grinding production line for slender shafts of the present invention, a feeding device 1 conveys a workpiece 4 into a centerless grinder 2 for grinding, and the ground workpiece is stacked through a discharge device 3 .

[0028] When the feeding device 1 is working, the feeding motor 12 drives the active pulley 143 to rotate through the rotating shaft 13, and the active pulley 143 drives the corresponding driven pulley 142 to rotate through the elastic transmission belt 144. The rotation of the driven pulley 142 drives the workpiece 4 placed on the driven pulley 142 to feed forward.

[0029] When the unloading device 3 is working, the centerless grinder 2 outputs the ground workpiece 4 into the conveyor chain 311 between the two baffles I312. The conveyor chain 311 conveys the workpiece 4 forward under the drive of the active sprocket 314. When the sensor 3134 senses the workpiece 4, the push rod motor 3131 extends to work, and pushes the corresponding workpiece 4 from between the baffle II3133 and the baffle III316 into the guide trough I321 through the push plate 3132, and then falls into the guide trough II322, and then enters the rearmost arc groove 3279 and presses the traction end of the partition belt into the arc groove 3279. At this time, the workpiece 4 is stacked in sequence from back to front, and then the two electric screw slide modules 3272 work to drive the worm gear elevator 3271 to move backward a distance of the arc groove 3279. At the same time, the spacer roll 325 is pulled to unwind, waiting for the next workpiece 4 to fall into the corresponding arc groove 3279. When one layer of stacking is completed, the worm gear elevator 3271 drives the support seat 3273 to descend a certain height, and the support seat 3273 drives the components on it to descend, so that a certain distance is maintained between the stacked workpiece 4 and the guide trough II322, which is convenient for stacking the next layer. Then start the motor 3232 to drive the guide trough II322 to rotate clockwise for a certain angle through the connecting shaft 3233, and then the motor 3232 stops working and locks. At this time, the workpieces 4 are stacked in sequence from front to back. Every time a workpiece 4 is stacked, the electric screw slide module 3272 drives the worm gear elevator 3271 to move forward the distance of an arc groove 3279. Repeat the above stacking operation until several layers of stacking are completed.

[0030] Since the blocking rod 3276 is blocked by the push rod 32710 , it will not descend along with the support seat 3273 and the placement seat 3274 . When the workpieces 4 are stacked, the lower end of the placement seat 3274 is flush with the upper end of the push rod 32710 after it descends.

[0031] There are two worm gear elevators 3271 , and the input ends of the two worm gear elevators 3271 are respectively connected to the two output ends of the reduction motor.

[0032] By rotating the bolt 147 clockwise or counterclockwise, the bolt 147 drives the nut 148 to move upward or downward, and the nut 148 pulls the corresponding support arm 146 to rotate clockwise or counterclockwise through a connecting arm 149, and the nut 148 pulls the corresponding support arm 146 to rotate counterclockwise or clockwise through another connecting arm 149, thereby achieving adjustment according to the diameter of the workpiece 4.

[0033] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. An automatic production line for centerless grinding of slender shafts, characterized by: The invention comprises a feeding device (1), a centerless grinder (2) and a feeding device (3), wherein the feeding device (1), the centerless grinder (2) and the feeding device (3) are arranged in sequence from back to front, the feeding device (3) comprises a feeding conveying mechanism (31) and a stacking mechanism (32) located at the output end of the feeding conveying mechanism (31), the stacking mechanism (32) comprises a guide trough I (321), a guide trough II (322), a rotary drive mechanism (323), an unwinding mechanism (324), a spacer roll (325), a spacer channel (326) and a workpiece storage mechanism (327), the lower end of the guide trough I (321) is provided with a rotary drive mechanism (323), and the rotary drive mechanism (323) is provided with a guide trough (321) and a tilted guide trough (321). The guide trough II (322) is provided with a reeling mechanism (324) at the top end thereof, a spacer roll (325) is provided on the reeling mechanism (324), a spacer channel (326) is provided at the bottom of the guide trough II (322), the spacer roll (325) unwound from the spacer channel (326) passes through the spacer channel (326), the workpiece storage mechanism (327) is located below the guide trough II (322), the rotary drive mechanism (323) comprises two supports (3231), a motor (3232) and two connecting shafts (3233), the lower ends of the supports (3231) are rotatably connected to the guide trough II (322) via the connecting shaft (3233), one of the supports (3231) is connected to the guide trough II (322) via the connecting shaft (3233), and the workpiece storage mechanism (327) is located below the guide trough II (322). 1) is provided with a motor (3232), the driving end of the motor (3232) is fixedly connected to the corresponding connecting shaft (3233), the workpiece storage mechanism (327) includes a plurality of worm gear elevators (3271), two electric screw slide modules (3272), a support seat (3273), a placement seat (3274), a plurality of positioning grooves (3275), a plurality of blocking rods (3276), a plurality of supporting legs (3277) and a positioning seat (3278), the slide of the electric screw slide module (3272) is provided with a base (3270), the base (3270) is provided with a worm gear elevator (3271), and the worm gear elevator (3271) is provided with a support seat (3273) The lower end of the placement seat (3274) is provided with a supporting foot (3274), the upper end of the support seat (3273) is provided with a positioning groove (3275) corresponding to and cooperating with the supporting foot (3274), the upper end of the placement seat (3274) is provided with a positioning seat (3278), and the positioning seat (3278) is provided with a plurality of arc grooves (3279) arranged in sequence and cooperating with the workpiece, and two blocking rods (3276) are passed through the front and rear ends of the placement seat (3274), and the lower ends of the blocking rods (3276) pass through the support seat (3273), and the base (3270) is provided with a push rod (32710) corresponding to the blocking rods (3276) and pressing against the lower end of the corresponding blocking rod (3276).

2. The automatic production line for centerless grinding of slender shafts according to claim 1, characterized in that: The cross section of the guide trough II (322) is in the shape of an "I" character, and a guide trough III (329) is provided on the lower trough body of the guide trough II (322).

3. The automatic production line for centerless grinding of slender shafts according to claim 2, characterized in that: The inner bottom surfaces of the two trough bodies of the material guide trough II (322) and the inner bottom surface of the material guide trough III (329) are both provided with a buffer layer (328).

4. The automatic production line for centerless grinding of slender shafts according to claim 1, characterized in that: The unwinding mechanism (324) comprises two supports (3241) and an unwinding shaft (3242). The unwinding shaft (3242) is passed through the two supports (3241) and is fixedly connected to the corresponding supports (3241) via hand screws (3243).

5. The automatic production line for centerless grinding of slender shafts according to claim 1, characterized in that: The unloading conveying mechanism (31) comprises a frame (310), a conveying plate chain (311), two baffles I (312) and a pushing mechanism (313); a driving sprocket (314) and a driven sprocket (315) are provided on the frame (310); the conveying plate chain (311) is provided on the driving sprocket (314) and the driven sprocket (315); the frame (310) is provided with two baffles I (312) located above the upper plate chain of the conveying plate chain (311); and the frame (310) is provided with a pushing mechanism (313) located in front of the baffles I (312).

6. The automatic production line for centerless grinding of slender shafts according to claim 5, characterized in that: The pushing mechanism (313) comprises a push rod motor (3131), a push plate (3132), a baffle II (3133) and a sensor (3134). The driving end of the push rod motor (3131) is provided with a push plate (3132). The lower end of the push plate (3132) is aligned with the lower end of the upper baffle I (312). The front end of the push plate (3132) is provided with a vertically arranged baffle II (3133). The upper side of the front end of the push plate (3132) is provided with a sensor (3134). The front end of the lower baffle I (312) is provided with a baffle III (316) parallel to the baffle II (3133).

7. The automatic centerless grinding production line for slender shafts according to claim 1, characterized in that: The feeding device (1) comprises a frame (11), a feeding motor (12), a rotating shaft (13) and a plurality of feeding assemblies (14). The frame (11) is provided with a feeding motor (12) and a rotating shaft (13) driven by the feeding motor. The frame (11) is provided with a feeding assembly (14). The feeding assembly (14) comprises two rotating wheels (141). The two rotating wheels (141) are both tilted forward. A driven pulley (142) is provided on the front side of one rotating wheel (141), and a driven pulley (142) is provided on the rear side of the other rotating wheel (141). A driving pulley (143) corresponding to the driven pulley (142) is provided on the rotating shaft (13). An elastic transmission belt (144) is provided on the driving pulley (143) and the corresponding driven pulley (142).

8. The automatic production line for centerless grinding of slender shafts according to claim 7, characterized in that: The feed assembly (14) further includes a mounting seat (145), two support arms (146), a bolt (147) and a nut (148), wherein the lower ends of the support arms (146) are hingedly connected to the mounting seat (145), the upper ends of the support arms (146) are provided with a rotating wheel (141), the lower ends of the bolts (147) are rotatably connected to the mounting seat (145), the bolts (147) are provided with nuts (148), and both ends of the nuts (148) are hingedly connected to the corresponding support arms (146) through connecting arms (149).

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