Sleeve fine grinding process and its feeding mechanism

Abstract

The application discloses a sleeve fine grinding process and a feeding mechanism thereof and relates to the technical field of sleeve processing.The application comprises a bottom plate, a material box and a transmission frame are arranged on the bottom plate, the material box is overlapped with the transmission frame, a pushing mechanism for pushing the material in the material box to the transmission frame is arranged in the material box, a door-shaped plate is arranged on the bottom plate, and a discharging groove is formed through the door-shaped plate.The application pushes the disordered sleeves in the material box to the transmission frame through the structure of the transmission frame and ensures that the axis of the sleeve is consistent with the transmission direction of the transmission frame, so that the sleeves can be neatly conveyed and placed in the guide frame.The clamping and overturning mechanism can not only clamp and fix the placed sleeves but also overturn the sleeves, and the inner grinding mechanism and the outer grinding mechanism are matched to comprehensively grind the sleeves, so that manual feeding is not needed when the sleeves are ground, the work labor is reduced, and the work efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the sleeve machining technical field, in particular to a sleeve fine grinding machining process and a feeding mechanism thereof. BACKGROUND

[0002] The sleeve wrench is composed of multiple sleeves with hexagonal holes or dodecahedral holes and is provided with handles, connecting rods and various accessories, and is particularly suitable for screwing bolts or nuts in very narrow or deep recesses, because the ends of some nuts or bolts are completely below the connected surface or are located in the recess, and the diameter of the recess cannot be used for open wrenches or adjustable wrenches and spanner wrenches, so the sleeve wrench is used. In addition, the space of the bolt is limited, and the sleeve wrench can also be used. The sleeve wrench is widely used in the field of automobile maintenance. The sleeve of part of the sleeve wrench is detachably connected with the wrench, so that different sizes of sleeves can be replaced to facilitate use. Commonly used sleeves are hexagonal sleeves. The sleeve is generally formed by stamping in the production process. The inner wall, port and outer surface of the sleeve are often provided with burrs after stamping. Therefore, the burrs need to be polished subsequently. The sleeve needs to be polished according to the polishing position using corresponding polishing equipment. Therefore, the sleeve needs to be replaced on different polishing equipment during polishing. The existing sleeve is replaced on different polishing equipment by manual work. When the same sleeve is polished at different positions, the worker needs to manually install or dismount multiple times. Although a mechanical arm is used for grabbing and feeding, the worker needs to arrange the sleeves in order in advance, and manual operation is still needed. When a large number of sleeves are polished, this method is not only time-consuming and labor-intensive, but also affects the processing efficiency. Therefore, the application provides a sleeve fine grinding machining process and a feeding mechanism thereof. SUMMARY

[0003] The application aims at solving the problems in the background and providing a sleeve fine grinding machining process and a feeding mechanism thereof.

[0004] In order to achieve the above-mentioned purpose, the application specifically adopts the following technical scheme:

[0005] The feeding mechanism for precision grinding of sleeves includes: a base plate on which a material box and a transmission frame are mounted, the material box overlapping the transmission frame, and a pushing mechanism for pushing materials onto the transmission frame; a portal plate on the base plate, with a discharge groove extending through it, and a guide frame on it, one end of which is connected to the transmission frame and the other end of which is connected to the discharge groove; a limiting mechanism on the portal plate for limiting the passage of materials within the guide frame; an adjusting frame on the base plate below the discharge groove, with a U-shaped plate on it for driving the U-shaped plate to rise, fall, and move horizontally; an internal grinding mechanism and an external grinding mechanism, both mounted on the base plate; and a clamping and flipping mechanism on the U-shaped plate for clamping and fixing the material and then flipping it to cooperate with the internal and external grinding mechanisms for precision grinding of the material's inner and outer surfaces.

[0006] By adopting the above technical solution, when grinding a large number of sleeves, the sleeves are placed in the material box, the pushing mechanism pushes the sleeves in the material box to the conveyor frame, and then the conveyor frame transports them to the guide frame and arranges them neatly. The limiting mechanism releases one sleeve in the guide frame and limits and intercepts the remaining sleeves. The released sleeve falls through the unloading chute, and the clamping and flipping mechanism clamps and fixes the fallen sleeve. The adjusting frame adjusts the position of the sleeve so that it can be used in conjunction with the internal grinding mechanism and the external grinding mechanism to grind different parts of the sleeve. The clamping and flipping mechanism can clamp and fix the sleeve and flip it so that the internal grinding mechanism and the external grinding mechanism can grind the sleeve comprehensively without grinding dead corners. The overall design of the device makes it possible to grind the sleeves in batches without manual loading and unloading, and the next sleeve is only ground after the same sleeve has been ground as a whole, thereby improving work efficiency.

[0007] Furthermore, the pushing mechanism includes a push plate and two hydraulic cylinders, wherein: the push plate vertically moves through the inner bottom wall of the material box and overlaps with one side inner wall of the material box; the top of the push plate has an inclined structure; through slots are provided on two sides of the material box; connecting blocks are provided on two sides of the push plate; the two connecting blocks slide through the two through slots respectively; and the two hydraulic cylinders are both mounted on the base plate and their piston ends are fixedly connected to the two connecting blocks respectively.

[0008] By adopting the above technical solution, the hydraulic cylinder performs work, and its piston end drives the push plate to move upward. When the push plate moves upward, its top end carries part of the sleeve. When the push plate carrying the sleeve passes the opening of the material box, the sleeve on the top of the push plate will slide down onto the conveyor frame due to the inclined structure of the top of the push plate, thereby realizing the feeding function.

[0009] Further, the limiting mechanism comprises a first electric push rod, a movable plate, a clamping plate and a sealing plate, wherein: the port of the material guide frame is arranged in a staggered manner with the discharging groove, the side of the material guide frame close to the discharging groove is provided with a discharging port, the side of the material guide frame away from the discharging port is provided with a plug-in port, the first electric push rod is arranged on the door-shaped plate, the movable plate is arranged on the piston end of the first electric push rod, the clamping plate and the sealing plate are arranged on the movable plate, the sealing plate is inserted and arranged in cooperation with the discharging port, and the clamping plate is inserted and arranged in cooperation with the plug-in port.

[0010] By adopting the above technical scheme, when the sealing plate is inserted into the discharging port, the clamping plate is away from the plug-in port, the door-shaped plate blocks the port of the material guide frame, the sleeve can be retained in the material guide frame, when the sleeve is released, the first electric push rod works, the piston end of the first electric push rod drives the movable plate to move, so that the sealing plate is away from the discharging port, and in the process that the sealing plate is away from the discharging port, the clamping plate is gradually inserted into the plug-in port, the clamping plate intercepts and limits the sleeve remaining after release, and the released sleeve falls through the discharging port and the discharging groove, when the released sleeve falls, the first electric push rod drives the movable plate to reset, so that the sealing plate blocks the discharging port again, the clamping plate is away from the plug-in port, and the sleeve in the material guide frame moves again to contact the next sleeve with the door-shaped plate, so as to release the sleeves one by one in batch polishing.

[0011] Further, the adjusting frame comprises a door-shaped frame, a second electric push rod, a bearing plate and a third electric push rod, wherein: the door-shaped frame is arranged on the bottom plate, the bearing plate is slidingly arranged on the door-shaped frame, the second electric push rod is arranged on the door-shaped frame and the piston end of the second electric push rod is fixedly connected with the bearing plate, the third electric push rod is arranged on the bearing plate, and the U-shaped plate is arranged on the piston end of the third electric push rod.

[0012] By adopting the above technical scheme, the second electric push rod works, the piston end of the second electric push rod drives the bearing plate to slide along the door-shaped frame, the third electric push rod works, and the piston end of the third electric push rod drives the U-shaped plate to move, so as to realize the function of driving the U-shaped plate to ascend or translate.

[0013] Further, the clamping and overturning mechanism comprises two shaft rods, a bidirectional threaded rod, two sleeves and two clamping plates, wherein the two shaft rods are respectively arranged to rotate through the opposite sides of the inner wall of the U-shaped plate, the two sleeves are respectively arranged to slide on the two shaft rods, the two clamping plates are respectively arranged at the opposite ends of the two sleeves, the shaft rod is provided with external splines, the sleeve is provided with internal splines matched with the external splines, the bidirectional threaded rod is arranged to rotate through the opposite sides of the inner wall of the U-shaped plate, the two ends of the bidirectional threaded rod are respectively provided with a support rod, the free ends of the two support rods are respectively arranged to rotate on the two sleeves, one end of the bidirectional threaded rod is connected with a first servo motor arranged on the U-shaped plate, and one of the shaft rods is fixedly provided with a gear, and the U-shaped plate is provided with a fourth electric push rod, and the piston end of the fourth electric push rod is provided with a rack matched with the gear teeth.

[0014] By adopting the above technical scheme, the first servo motor works, the output shaft drives the bidirectional threaded rod to rotate, and under the action of the bidirectional thread, the two clamping plates are driven to move in reverse synchronously to realize the clamping and fixing or the unclamping and fixing of the sleeve. Through the matching of the internal splines and the external splines, the sleeve can only slide in the axial direction along the shaft rod, but cannot rotate in the circumferential direction. Therefore, when the fourth electric push rod works, the piston end drives the rack to move, and through the meshing of the gear and the rack, the shaft rod is driven to rotate. When the internal grinding mechanism grinds the inner wall and the end face of the sleeve, the sleeve does not need to be fixed, and only needs to be overturned to enable the internal grinding mechanism to comprehensively grind the inner wall and the end face of the sleeve. When the external grinding mechanism grinds the outer surface of the sleeve, the sleeve needs to be fixed, and the sleeve is overturned to facilitate the external grinding mechanism to comprehensively grind the outer surface of the sleeve.

[0015] Further, the internal grinding mechanism comprises a mechanical arm, a second servo motor and a grinding rod, wherein the mechanical arm is arranged on the bottom plate, the second servo motor is arranged at the free end of the mechanical arm, and the grinding rod is arranged at the output shaft end of the second servo motor.

[0016] By adopting the above technical scheme, since one end of the sleeve is used for being inserted with a wrench and the other end is sleeved with a nut, the internal structures of the two ends of the sleeve are different, and the inner port of the end sleeved with the nut is hexagonal. Therefore, by arranging the mechanical arm, different positions of the second servo motor can be adjusted to facilitate the grinding rod to comprehensively grind the inner wall of the sleeve, so that the grinding effect of the sleeve is good.

[0017] Further, the outer grinding mechanism comprises an X-direction translation member, a Y-direction translation member, a spindle box and a tool, wherein the X-direction translation member is arranged on the bottom plate, the Y-direction translation member is arranged on the X-direction translation member, the tool is arranged on the Y-direction translation member through a tool holder, and the spindle box is arranged on the bottom plate and is provided with a three-jaw chuck.

[0018] By adopting the above technical scheme, the sleeve is fixed by the three-jaw chuck, the sleeve is rotated by the spindle box, and the X-direction and Y-direction movements of the tool are adjusted by the X-direction and Y-direction translation members, so that the tool can comprehensively polish the outer surface of the sleeve.

[0019] The application further provides a sleeve fine grinding process, which comprises the following steps.

[0020] S1: placing a wrench sleeve to be polished in a material box;

[0021] S2: pushing the wrench sleeve in the material box to a conveying frame by a pushing mechanism, conveying the wrench sleeve to a guide frame by the conveying frame and arranging the wrench sleeve in order;

[0022] S3: adjusting a U-shaped plate to be below a discharging groove by an adjusting frame, and adjusting two clamping plates to be in an open and close state and corresponding to the discharging groove;

[0023] S4: releasing one of the wrench sleeves in the guide frame and intercepting the wrench sleeve by a limiting mechanism, dropping the released one of the wrench sleeves in the two clamping plates through the discharging groove, and adjusting the two clamping plates to clamp and fix the wrench sleeve;

[0024] S5: adjusting the position of a bearing plate by the adjusting frame, so as to cooperate with the inner grinding mechanism and the outer grinding mechanism to finely grind the inner and outer surfaces of the wrench;

[0025] S6: when the wrench sleeve is ground inside, adjusting the position of a second servo motor by a mechanical arm, and polishing the end surface and inner wall of one end of the wrench sleeve by a grinding rod, and then turning over the wrench sleeve, so as to polish the end surface and inner wall of the other end of the wrench sleeve by the grinding rod;

[0026] S7: when the wrench sleeve is ground outside, clamping and fixing one end of the wrench sleeve by the three-jaw chuck, releasing the fixation of the wrench sleeve by the two clamping plates and moving the two clamping plates away from the wrench sleeve, rotating the wrench sleeve by the spindle box, polishing the outer surface of the unclamped part of the wrench sleeve by the tool under the action of the X-direction and Y-direction translation members, clamping and fixing the wrench sleeve by the two clamping plates after the unclamped part is polished, and turning over the wrench sleeve, so as to clamp and fix the polished one end by the three-jaw chuck, and polishing the outer surface of the preliminarily clamped and fixed one end of the wrench sleeve by the tool;

[0027] S8: When the wrench sleeve is polished in whole, the wrench sleeve is taken off, the adjusting frame adjusts the bearing plate to reset, so that the two clamping plates are located below the discharging groove again, and the limiting mechanism releases one wrench sleeve again, so that the batch polishing of the wrench sleeve is realized.

[0028] Further, when the wrench sleeves in the guide frame are arranged full, the pushing mechanism should be stopped to deliver to the transmission frame, and after the wrench sleeves in the guide frame are cleaned and empty, the pushing mechanism is started again.

[0029] By adopting the above technical scheme, the pushing mechanism is started or stopped according to the number of sleeves remaining in the guide frame, so as to avoid that the sleeves on the transmission frame interfere with the sleeves on the guide frame, and the sleeves cannot be delivered smoothly.

[0030] The beneficial effects of the present application are as follows: through the structure of the transmission frame, the pushing mechanism can push the sleeves placed disorderly in the material box to the transmission frame and ensure that the axis of the sleeve is consistent with the transmission direction of the transmission frame, so that the sleeves can be placed neatly in the guide frame. Through the setting of the limiting mechanism, the sleeves can be released one by one, the clamping and overturning mechanism not only can clamp and fix the released sleeves, but also can overturn the sleeves to cooperate with the inner grinding mechanism and the outer grinding mechanism to grind the sleeves comprehensively. When the device grinds the sleeves, manual feeding is not needed, which not only reduces the labor, but also improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a perspective view of the present application;

[0032] Figure 2 is another perspective view of the present application;

[0033] Figure 3 is a partial perspective view of the present application;

[0034] Figure 4 is a perspective view of the present application;

[0035] Figure 5 is a partial perspective view of the present application;

[0036] Figure 6 is a front view of the present application;

[0037] Figure 7 is a Figure 1 enlarged view of A in the present application;

[0038] Figure 8 is a Figure 1 enlarged view of B in the present application;

[0039] Figure 9 is an enlarged view of C in the present application Figure 2

[0040] Figure 10 is an enlarged view of D in the present application Figure 4

[0041] Figure 11 is an enlarged view of E in the present application Figure 5

[0042] Reference signs: 1, bottom plate; 2, material box; 3, conveying frame; 4, pushing mechanism; 5, door-shaped plate; 6, discharging groove; 7, material guide frame; 8, limiting mechanism; 9, adjusting frame; 10, U-shaped plate; 11, inner grinding mechanism; 12, outer grinding mechanism; 13, clamping and overturning mechanism; 401, push plate; 402, hydraulic oil cylinder; 403, slot; 404, connecting block; 801, first electric push rod; 802, movable plate; 803, clamping plate; 804, sealing plate; 805, discharging port; 806, socket; 901, door-shaped frame; 902, second electric push rod; 903, bearing plate; 904, third electric push rod; 1101, mechanical arm; 1102, second servo motor; 1103, grinding rod; 1201, X-direction translation piece; 1202, Y-direction translation piece; 1203, main shaft box; 1204, tool; 1301, shaft rod; 1302, bidirectional threaded rod; 1303, sleeve; 1304, clamping plate; 1305, support rod; 1306, first servo motor; 1307, gear; 1308, fourth electric push rod; 1309, rack. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0044] As Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 10 ​​​The sleeve fine grinding feeding mechanism is shown, including: the base plate 1, the base plate 1 is provided with the material box 2 and the transmission frame 3, the transmission frame 3 includes two legs, two legs are provided with the transmission plate, the longitudinal section of the transmission plate is U-shaped, the transmission plate is configured with a baffle away from one side of the transmission frame 3, both ends of the transmission plate are rotatably provided with rotating rollers, the transmission belt is sleeved on the two rotating rollers, the end of one of the rotating rollers is connected with the driving motor arranged on the transmission plate, the material box 2 is lapped with the transmission frame 3, the pushing mechanism 4 for pushing the material to the transmission frame 3 is arranged in the material box 2; the baffle is provided with a limiting rod, the width of the transmission belt is matched with the width of the sleeve, so that when the pushing mechanism 4 pushes the sleeve to the transmission belt, the axis direction of the sleeve is parallel to the transmission direction of the transmission belt, and the sleeve can be left on the transmission belt, and part of the sleeve not parallel to the transmission belt is directly dropped back into the material box 2, even if part of the vertical sleeve is also pushed back into the material box 2 due to the limiting rod, so that the sleeves on the transmission belt are kept neat, so that the sleeves in the guide frame 7 are stored neatly, the door-shaped plate 5 is arranged on the base plate 1, the unloading slot 6 is arranged on the door-shaped plate 5, the guide frame 7 is arranged on the door-shaped plate 5, one end of the guide frame 7 is connected with the transmission frame 3, the other end of the guide frame 7 is communicated with the unloading slot 6, the guide frame 7 is configured as an L-shaped guide plate, the guide plate is provided with a guide slot on one side, one side of the guide plate is configured with a baffle, the two sections of the guide plate are designed as obtuse angles, one end of the transmission frame 3 is communicated with the guide slot, the height of the transmission belt is slightly higher than the inner bottom wall of the guide slot, so that the sleeves on the transmission belt can fall into the guide slot and be arranged neatly; the limiting mechanism 8 is arranged on the door-shaped plate 5, which is used for limiting the passage of the material in the guide frame 7; the adjusting frame 9 is arranged on the base plate 1 and below the unloading slot 6, the U-shaped plate 10 is arranged on the adjusting frame 9, the adjusting frame 9 is used to drive the U-shaped plate 10 to ascend and translate;The inner grinding mechanism 11 and the outer grinding mechanism 12 are arranged on the bottom plate 1; the clamping and overturning mechanism 13 arranged on the U-shaped plate 10 is used for clamping and fixing the material and overturning the material to cooperate with the inner grinding mechanism 11 and the outer grinding mechanism 12 to finely grind the inner and outer surfaces of the material. When a large batch of sleeves are polished, the sleeves are placed in the material box 2, the pushing mechanism 4 pushes the sleeves in the material box 2 to the conveying frame 3, and then the sleeves are conveyed to the guide frame 7 through the conveying frame 3 and arranged neatly. The limiting mechanism 8 releases one of the sleeves in the guide frame 7 and intercepts the remaining sleeves. The released sleeve falls through the discharging chute 6, the clamping and overturning mechanism 13 clamps and fixes the falling sleeve, and the adjusting frame 9 adjusts the position of the U-shaped plate 10, so as to adjust the position of the sleeve to facilitate the inner grinding mechanism 11 and the outer grinding mechanism 12 to polish different positions of the sleeve. The clamping and overturning mechanism 13 can clamp and fix the sleeve and overturn it, so that the inner grinding mechanism 11 and the outer grinding mechanism 12 can polish the sleeve comprehensively without dead angles. The overall arrangement of the device enables the sleeves to be polished in batches without manual feeding and discharging, and the next sleeve is polished after the overall polishing of the same sleeve, thereby improving the work efficiency.

[0045] As shown in Figure 1 and Figure 10 , in some embodiments, the pushing mechanism 4 includes a pushing plate 401 and two hydraulic cylinders 402, wherein the pushing plate 401 vertically penetrates the inner bottom wall of the material box 2 and is lapped with the inner wall of one side of the material box 2. The top of the pushing plate 401 is inclined, two sides of the material box 2 are each provided with a through slot 403, and two sides of the pushing plate 401 are each provided with a connecting block 404. The two connecting blocks 404 are respectively slidably penetrated through the two through slots 403, and the two hydraulic cylinders 402 are arranged on the bottom plate 1 and the piston ends thereof are respectively fixedly connected with the two connecting blocks 404. When the hydraulic cylinder 402 works, the piston end drives the pushing plate 401 to move upward, and when the pushing plate 401 moves upward, the top end of the pushing plate 401 carries part of the sleeves. When the pushing plate 401 carries the sleeves over the box opening of the material box 2, the sleeves on the top of the pushing plate 401 will slide onto the conveying frame 3 under the structure of the inclined top of the pushing plate 401, thereby achieving the feeding effect. In order to make the device more reasonable, preferably, the inner bottom wall of the material box 2 is inclined, and the pushing plate 401 is inserted at the end with low inclination, so that the sleeves stored in the material box 2 can be completely pushed onto the conveying frame 3.

[0046] As shown in Figure 9As shown, in some embodiments, the limiting mechanism 8 comprises a first electric push rod 801, a movable plate 802, a clamping plate 803 and a sealing plate 804, wherein: the port of the material guide frame 7 is arranged in a staggered manner with the discharging groove 6, the side of the material guide frame 7 close to the discharging groove 6 is provided with a discharging port 805, by arranging the port of the material guide frame 7 in a staggered manner with the discharging groove 6, and by providing the discharging port 805, the material guide frame 7 is not in linear communication with the discharging groove 6, but in zigzag communication, when initially conveying the sleeve into the material guide frame 7, the door-shaped plate 5 can play a role of receiving, the part of the door-shaped plate 5 between the discharging port 805 and the discharging groove 6 is in an inclined structure, so as to facilitate the sleeve to be released to roll from the discharging port 805 into the discharging groove 6, the side of the material guide frame 7 away from the discharging port 805 is provided with a socket 806, the first electric push rod 801 is arranged on the door-shaped plate 5, the movable plate 802 is arranged at the piston end of the first electric push rod 801, the clamping plate 803 and the sealing plate 804 are arranged on the movable plate 802, the sealing plate 804 is inserted and matched with the discharging port 805, the clamping plate 803 is inserted and matched with the socket 806, when initially conveying the sleeve into the material guide frame 7, the sealing plate 804 closes the discharging port 805, the clamping plate 803 is away from the socket 806, the door-shaped plate 5 blocks the port of the material guide frame 7, the sleeve can be left in the material guide frame 7, when releasing the sleeve, the first electric push rod 801 works, the piston end drives the movable plate 802 to move, so that the sealing plate 804 is away from the discharging port 805, and in the process of the sealing plate 804 being away from the discharging port 805, the clamping plate 803 is gradually inserted into the socket 806, the clamping plate 803 intercepts and limits the sleeve remaining after being released, and the released sleeve falls through the discharging port 805 and the discharging groove 6, when the released sleeve falls, the first electric push rod 801 drives the movable plate 802 to reset, so that the sealing plate 804 closes the discharging port 805 again, the clamping plate 803 is away from the socket 806, and the sleeve in the material guide frame 7 moves again to contact the next sleeve with the door-shaped plate 5, so as to release the sleeves one by one in batch polishing.

[0047] As Figure 7As shown, in some embodiments, the adjusting frame 9 comprises a door-shaped frame 901, a second electric push rod 902, a bearing plate 903 and a third electric push rod 904, wherein: the door-shaped frame 901 is arranged on the bottom plate 1, the bearing plate 903 is slidingly arranged on the door-shaped frame 901, the second electric push rod 902 is arranged on the door-shaped frame 901 and the piston end thereof is fixedly connected with the bearing plate 903, the door-shaped frame 901 comprises two vertical rods, the top ends of the two vertical rods are provided with mounting plates, the bearing plate 903 is slidingly sleeved on the two vertical rods, the second electric push rod 902 is arranged on the mounting plate, the third electric push rod 904 is arranged on the bearing plate 903, the U-shaped plate 10 is arranged at the piston end of the third electric push rod 904, the second electric push rod 902 works, the piston end thereof drives the bearing plate 903 to slide along the door-shaped frame 901, the third electric push rod 904 works, the piston end thereof drives the U-shaped plate 10 to move, so as to realize the action of driving the U-shaped plate 10 to ascend or translate, the U-shaped plate 10 is provided with a guide rod which is slidingly penetrated through the bearing plate 903, and the stability of the U-shaped plate 10 during movement is improved through the arrangement of the guide rod.

[0048] As Figure 3 , Figure 5 and Figure 11As shown, in some embodiments, the clamping and overturning mechanism 13 comprises two shaft rods 1301, a bidirectional threaded rod 1302, two sleeves 1303 and two clamping plates 1304, wherein: the two shaft rods 1301 are respectively arranged to rotate through the opposite sides of the inner wall of the U-shaped plate 10, the two sleeves 1303 are respectively arranged to be sleeved on the two shaft rods 1301, and the two clamping plates 1304 are respectively arranged at the opposite ends of the two sleeves 1303. The clamping plate 1304 comprises an arc-shaped plate, the end of the arc-shaped plate is provided with a plurality of arc-shaped rods, and the plurality of arc-shaped rods on the two arc-shaped plates are arranged alternately. Through the arrangement of the arc-shaped plate and the arc-shaped rod, the two clamping plates 1304 can also receive the dropped sleeve when they are in the opening and closing state. The shaft rod 1301 is provided with an external spline, the sleeve 1303 is provided with an internal spline which is in sliding fit with the external spline, the bidirectional threaded rod 1302 is arranged to rotate through the opposite sides of the inner wall of the U-shaped plate 10, the two ends of the bidirectional threaded rod 1302 are respectively provided with a supporting rod 1305 which is in threaded fit, the free ends of the two supporting rods 1305 are respectively arranged to rotate and be sleeved on the two sleeves 1303, and the end of the supporting rod 1305 away from the bidirectional threaded rod 1302 is provided with a sleeve ring which is sleeved on the sleeve 1303. The outer surface of the sleeve 1303 is provided with an annular clamping groove, the inner wall of the sleeve ring is provided with an annular clamping block, and the annular clamping block is arranged to rotate and be inserted in the annular clamping groove. Through the clamping fit of the annular clamping groove and the annular clamping block, the sleeve 1303 can rotate along the circumferential direction of the supporting rod 1305, but cannot slide along the axial direction. One end of the bidirectional threaded rod 1302 is connected with a first servo motor 1306 which is arranged on the U-shaped plate 10. One of the shaft rods 1301 is fixedly provided with a gear 1307, and the U-shaped plate 10 is provided with a fourth electric push rod 1308. The piston end of the fourth electric push rod 1308 is provided with a rack 1309 which is in meshing fit with the gear teeth of the gear 1307. The first servo motor 1306 works, and the output shaft of the first servo motor 1306 drives the bidirectional threaded rod 1302 to rotate. Under the action of the bidirectional thread, the two supporting rods 1305 are driven to move synchronously and reversely, so that the two clamping plates 1304 are driven to move synchronously and reversely, so as to realize the clamping and fixing or the unclamping and fixing of the sleeve. Through the fit of the internal spline and the external spline, the sleeve 1303 can only slide along the axial direction of the shaft rod 1301, but cannot rotate along the circumferential direction. Therefore, when the fourth electric push rod 1308 works, the piston end of the fourth electric push rod 1308 drives the rack 1309 to move, and through the meshing of the gear 1307 and the rack 1309, the one of the shaft rods 1301 is driven to rotate. When the inner grinding mechanism 11 grinds the inner wall and the end face of the sleeve, the sleeve does not need to be unfastened. It only needs to overturn the sleeve, so that the inner grinding mechanism 11 can comprehensively grind the inner wall and the end face of the sleeve. When the outer grinding mechanism 12 grinds the outer surface of the sleeve, the sleeve needs to be unfastened. Through overturning the sleeve, the outer grinding mechanism 12 can comprehensively grind the outer surface of the sleeve.

[0049] As Figure 6As shown, in some embodiments, the inner grinding mechanism 11 comprises a mechanical arm 1101, a second servo motor 1102 and a grinding rod 1103, wherein: the mechanical arm 1101 is arranged on the bottom plate 1, the mechanical arm 1101 adopts a multi-joint mechanical arm and can be adjusted in all directions, the second servo motor 1102 is arranged at the free end of the mechanical arm 1101, and the grinding rod 1103 is arranged at the output shaft end of the second servo motor 1102. Since one end of the sleeve is used for plug-in connection with the wrench and the other end is sleeved with the nut, the internal structures of the two ends of the sleeve are different, and the internal port of the end sleeved with the nut is hexagonal in structure. Therefore, by arranging the mechanical arm 1101, different positions of the second servo motor 1102 can be adjusted to facilitate the grinding rod 1103 to comprehensively grind the inner wall of the sleeve, so that the sleeve grinding effect is good.

[0050] As shown, Figure 8 As shown, in some embodiments, the outer grinding mechanism 12 comprises an X-direction translation piece 1201, a Y-direction translation piece 1202, a spindle box 1203 and a tool 1204, wherein: the X-direction translation piece 1201 is arranged on the bottom plate 1, the Y-direction translation piece 1202 is arranged on the X-direction translation piece 1201, the tool 1204 is arranged on the Y-direction translation piece 1202 through a tool holder, the X-direction translation piece 1201 comprises a first adjusting plate, a first sliding groove is formed in the first adjusting plate, first screw rods are rotatably penetrated into the opposite sides of the inner wall of the first sliding groove, first sliding blocks are threadedly sleeved on the first screw rods, the first sliding blocks are slidingly inserted into the first sliding groove, one end of the first screw rod is connected with a driving motor arranged on the first adjusting plate, the Y-direction translation piece 1202 comprises a second adjusting plate, the second adjusting plate is arranged on the first sliding block, a second sliding groove is formed in the second adjusting plate, second screw rods are rotatably penetrated into the opposite sides of the inner wall of the second sliding groove, second sliding blocks are threadedly sleeved on the second screw rods, the second sliding blocks are slidingly inserted into the second sliding groove, one end of the second screw rod is connected with a driving motor arranged on the second adjusting plate, the tool holder is arranged on the second sliding block, the spindle box 1203 is arranged on the bottom plate 1, the spindle box 1203 is provided with a three-jaw chuck, the sleeve is fixed through the three-jaw chuck, the spindle box 1203 drives the sleeve to rotate, and the movement of the tool 1204 along the X-direction and the Y-direction is adjusted through the X-direction translation piece 1201 and the Y-direction translation piece 1202, so that the tool 1204 can comprehensively grind the outer surface of the sleeve.

[0051] The sleeve fine grinding process comprises the following steps:

[0052] S1: placing the wrench sleeve to be ground in the material box 2;

[0053] S2: the pushing mechanism 4 pushes the wrench sleeve in the material box 2 to the conveying frame 3, the conveying frame 3 conveys the wrench sleeve to the material guide frame 7 and arranges them in order;

[0054] S3: Adjusting the adjusting frame 9 adjusts the U-shaped plate 10 to the bottom of the unloading chute 6, and adjusts the two clamping plates 1304 to the open / closed state and to correspond with the unloading chute 6;

[0055] S4: The limiting mechanism 8 releases one of the wrench sleeves located in the guide frame 7 and intercepts and limits the remaining wrench sleeves. The released wrench sleeve falls into the two clamping plates 1304 through the unloading chute 6. The two clamping plates 1304 are then adjusted to clamp and fix the wrench sleeve.

[0056] S5: Adjusting bracket 9 adjusts the position of bearing plate 903 so as to cooperate with internal grinding mechanism 11 and external grinding mechanism 12 to perform fine grinding on the inner and outer surfaces of wrench respectively;

[0057] S6: When the wrench sleeve is internally ground, the robotic arm 1101 adjusts the position of the second servo motor 1102, and the grinding rod 1103 grinds the end face and inner wall of one end of the wrench sleeve. After one end is ground, the wrench sleeve is flipped over so that the grinding rod 1103 grinds the end face and inner wall of the other end of the wrench sleeve.

[0058] S7: When the wrench sleeve is being externally ground, the three-jaw chuck clamps and fixes one end of the wrench sleeve. Then, the two clamping plates 1304 are released from fixing the wrench sleeve and the two clamping plates 1304 are moved away from the wrench sleeve. The spindle box 1203 drives the wrench sleeve to rotate. The cutting tool 1204 grinds the outer surface of the unclamped part of the wrench sleeve under the action of the X-axis translation member 1201 and the Y-axis translation member 1202. After the unclamped part is ground, the two clamping plates 1304 clamp and fix the wrench sleeve again and flip the wrench sleeve so that the three-jaw chuck clamps and fixes the ground end. The cutting tool 1204 then grinds the outer surface of the initially clamped and fixed end of the wrench sleeve.

[0059] S8: After the entire wrench sleeve is polished, the wrench sleeve is removed and the adjusting frame 9 adjusts the bearing plate 903 to reset, so that the two clamping plates 1304 are once again located below the unloading chute 6, and the limiting mechanism 8 releases another wrench sleeve, thereby realizing the batch polishing of the wrench sleeves.

[0060] like Figure 2 As shown, in some embodiments, when the wrench sleeves in the guide frame 7 are almost full, the pushing mechanism 4 should stop conveying the sleeves to the transmission frame 3. After the wrench sleeves in the guide frame 7 are cleared, the pushing mechanism 4 should be started again. The pushing mechanism 4 should be turned on or off according to the number of sleeves remaining in the guide frame 7, so as to avoid sleeves remaining on the transmission frame 3 and avoid the sleeves on the transmission frame 3 from colliding with the sleeves on the guide frame 7, which would prevent the subsequent smooth conveying of sleeves.

[0061] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A feed mechanism for sleeve fine grinding, characterized in that, Include: The bottom plate (1), the material box (2) and the transmission frame (3) are arranged on the bottom plate (1), the material box (2) and the transmission frame (3) overlap, the material box (2) is provided with a pushing mechanism (4) for pushing material to the transmission frame (3); The door-shaped plate (5) is arranged on the bottom plate (1), the discharge chute (6) is arranged on the door-shaped plate (5), the guide frame (7) is arranged on the door-shaped plate (5), one end of the guide frame (7) is connected with the transmission frame (3), the other end of the guide frame (7) is communicated with the discharge chute (6); The limiting mechanism (8) is arranged on the door-shaped plate (5), which is used for limiting the passage of material in the guide frame (7), the limiting mechanism (8) includes a first electric push rod (801), a movable plate (802), a clamping plate (803) and a sealing plate (804), wherein: the port of the guide frame (7) is arranged in a staggered manner with the discharge chute (6), the discharge port (805) is arranged on the side of the guide frame (7) close to the discharge chute (6), the insertion port (806) is arranged on the side of the guide frame (7) away from the discharge port (805), the first electric push rod (801) is arranged on the door-shaped plate (5), the movable plate (802) is arranged on the piston end of the first electric push rod (801), the clamping plate (803) and the sealing plate (804) are arranged on the movable plate (802), the sealing plate (804) is inserted and matched with the discharge port (805), and the clamping plate (803) is inserted and matched with the insertion port (806); The adjusting frame (9) is arranged on the bottom plate (1) and below the discharge chute (6), the U-shaped plate (10) is arranged on the adjusting frame (9), the adjusting frame (9) is used for driving the U-shaped plate (10) to ascend and translate, the adjusting frame (9) includes a door-shaped frame (901), a second electric push rod (902), a bearing plate (903) and a third electric push rod (904), wherein: the door-shaped frame (901) is arranged on the bottom plate (1), the bearing plate (903) is slidably arranged on the door-shaped frame (901), the second electric push rod (902) is arranged on the door-shaped frame (901), and the piston end of the second electric push rod (902) is fixedly connected with the bearing plate (903), the third electric push rod (904) is arranged on the bearing plate (903), and the U-shaped plate (10) is arranged on the piston end of the third electric push rod (904); An inner grinding mechanism (11) and an outer grinding mechanism (12) are arranged on the bottom plate (1), the inner grinding mechanism (11) comprises a mechanical arm (1101), a second servo motor (1102) and a grinding rod (1103), wherein: the mechanical arm (1101) is arranged on the bottom plate (1), the second servo motor (1102) is arranged on the free end of the mechanical arm (1101), and the grinding rod (1103) is arranged on the output shaft end of the second servo motor (1102), the outer grinding mechanism (12) comprises an X-direction translator (1201), a Y-direction translator (1202), a spindle box (1203) and a tool (1204), wherein: the X-direction translator (1201) is arranged on the bottom plate (1), the Y-direction translator (1202) is arranged on the X-direction translator (1201), the tool (1204) is arranged on the Y-direction translator (1202) through a tool holder, and the spindle box (1203) is arranged on the bottom plate (1), and the spindle box (1203) is provided with a three-jaw chuck; A clamping and overturning mechanism (13) is arranged on the U-shaped plate (10), which is used for clamping and fixing the material and overturning the material to cooperate with the inner grinding mechanism (11) and the outer grinding mechanism (12) to finely grind the inner and outer surfaces of the material, the clamping and overturning mechanism (13) comprises two shaft rods (1301), a bidirectional threaded rod (1302), two sleeve pipes (1303) and two clamping plates (1304), wherein: two shaft rods (1301) are respectively arranged on the opposite sides of the inner wall of the U-shaped plate (10) and rotate through the inner wall, two sleeve pipes (1303) are respectively arranged on the two shaft rods (1301) and slide, two clamping plates (1304) are respectively arranged on the opposite ends of the two sleeve pipes (1303), the shaft rod (1301) is provided with an external spline, the sleeve pipe (1303) is provided with an internal spline in sliding fit with the external spline, the bidirectional threaded rod (1302) is arranged on the opposite sides of the inner wall of the U-shaped plate (10) and rotates, both ends of the bidirectional threaded rod (1302) are threadedly sleeved with a support rod (1305), the free ends of the two support rods (1305) are respectively arranged on the two sleeve pipes (1303) and rotate, one end of the bidirectional threaded rod (1302) is connected with a first servo motor (1306) arranged on the U-shaped plate (10), one of the shaft rods (1301) is fixedly provided with a gear (1307), and the U-shaped plate (10) is provided with a fourth electric push rod (1308), and the piston end of the fourth electric push rod (1308) is provided with a rack (1309) in meshing fit with the gear teeth of the gear (1307).

2. The sleeve lapping feed mechanism of claim 1 wherein, The pushing mechanism (4) comprises a push plate (401) and two hydraulic oil cylinders (402), wherein: The push plate (401) vertically penetrates the inner bottom wall of the material box (2) and overlaps with the inner wall of one side of the material box (2), the top of the push plate (401) is in an inclined configuration, two sides of the material box (2) are both provided with a through slot (403), two sides of the push plate (401) are both provided with a connecting block (404), the two connecting blocks (404) respectively slide through the two through slots (403), and the two hydraulic oil cylinders (402) are both arranged on the bottom plate (1) and are fixedly connected with the two connecting blocks (404) at the piston ends.

3. Sleeve finishing process, comprising a sleeve finishing feeding mechanism according to any one of claims 1-2, comprising the following steps: S1: placing a wrench sleeve to be polished in the material box (2); S2: the push mechanism (4) pushes the wrench sleeve in the material box (2) onto the transmission frame (3), the transmission frame (3) transmits the wrench sleeve to the guide frame (7) and arranges it in order; S3: the adjusting frame (9) adjusts the U-shaped plate (10) to be below the discharge chute (6), adjusts the two clamping plates (1304) to be in an open and closed state and corresponds to the discharge chute (6); S4: the limiting mechanism (8) releases one of the wrench sleeves in the guide frame (7) and intercepts the remaining wrench sleeves, the released one of the wrench sleeves falls into the two clamping plates (1304) through the discharge chute (6), and then the two clamping plates (1304) are adjusted to clamp and fix the wrench sleeve; S5: the adjusting frame (9) adjusts the position of the bearing plate (903) so as to cooperate with the inner grinding mechanism (11) and the outer grinding mechanism (12) to finish grinding the inner and outer surfaces of the wrench respectively; S6: when the wrench sleeve is ground inside, the mechanical arm (1101) adjusts the position of the second servo motor (1102), the grinding rod (1103) grinds the end surface and inner wall of one end of the wrench sleeve, and when the grinding of one end is completed, the wrench sleeve is turned over, so that the grinding rod (1103) grinds the end surface and inner wall of the other end of the wrench sleeve; S7: when the wrench sleeve is ground outside, the three-jaw chuck clamps and fixes one end of the wrench sleeve, the two clamping plates (1304) are released from the wrench sleeve, the main shaft box (1203) drives the wrench sleeve to rotate, the cutter (1204) grinds the outer surface of the unclamped part of the wrench sleeve under the action of the X-direction translation member (1201) and the Y-direction translation member (1202), after the unclamped part is ground, the two clamping plates (1304) clamp and fix the wrench sleeve and turn over the wrench sleeve, so that the three-jaw chuck clamps and fixes the end that has been ground, and the cutter (1204) grinds the outer surface of the end that is preliminarily clamped and fixed. S8: when the wrench sleeve polishing is completed as a whole, the wrench sleeve is removed, the adjusting frame (9) adjusts the bearing plate (903) to reset, so that the two clamping plates (1304) are located below the discharging groove (6) again, and the limiting mechanism (8) is released again to release one wrench sleeve, so that the batch polishing of the wrench sleeve is realized.

4. The sleeve refining process of claim 3 wherein, When the wrench sleeves in the guide frame (7) are arranged full, the pushing mechanism (4) should stop conveying to the transmission frame (3), and after the wrench sleeves in the guide frame (7) are cleaned and empty, the pushing mechanism (4) is started again.

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