Automatic riveting equipment for driven disc parts

Abstract

An automatic riveting device for driven disc assemblies belongs to the technical field of clutch component processing. The purpose of the invention is to provide an automatic riveting device for driven disc assemblies that changes the manual riveting process of the operator to the process of the equipment automatically conveying rivets to automatically rivet the driven disc and the transmission disc assemblies. The invention comprises two major mechanisms, a riveting mechanism and a turntable mechanism, which are installed on a stand and cooperate with each other. The invention improves the first-time qualified rate of products, optimizes the process, improves production efficiency, reduces manufacturing costs, and reduces the labor intensity of operators.

Description

Technical Field

[0001] The invention belongs to the technical field of clutch component processing. Background Art

[0002] The first process of riveting the existing clutch driven plate assembly is that the operator places the driven plate according to the riveting position, and places the transmission plate hole position corresponding to the driven plate hole position, inserts 12 rivets into the rivet holes, and fine-tunes the transmission plate by hand to make sure that the rivets are completely dropped into the transmission plate and driven plate holes. The operator steps on the equipment pedal, and the rivets are squeezed and upset to complete the riveting of the driven plate and the transmission plate. Summary of the invention

[0003] The purpose of the present invention is to change the manual riveting process of the operator into an automatic riveting device for the driven disk assembly process in which the equipment automatically conveys rivets to automatically rivet the driven disk and the transmission disk.

[0004] The present invention comprises two major mechanisms, a riveting mechanism and a turntable mechanism, which are installed on a frame and cooperate with each other.

[0005] Riveting mechanism: The riveting seat has a C-shaped groove, and a gas-liquid booster cylinder is installed on the riveting seat at the upper end of the C-shaped groove. The piston rod of the gas-liquid booster cylinder passes through the upper edge of the riveting seat and is installed with a cylinder connector at the end, and the cylinder connector is clamped on the connecting seat; an inverted L-shaped connecting block is fixedly installed at the lower end of the connecting seat, and a sliding sleeve is installed on the rear side of the inverted L-shaped connecting block. The sliding sleeve matches the sliding rail, and the sliding rail is fixedly installed on the rear side wall of the C-shaped groove; a punching rod is fixedly installed on the inverted L-shaped connecting block, and the punching rod extends into the air pressure head from the punch inlet ; Side fixing plates are fixedly installed on the side walls on both sides of the riveting seat, an air pressure head mounting plate is fixedly installed between the two side fixing plates, an air pressure head fixing frame is fixedly installed on the air pressure head mounting plate, the air pressure head is fixedly installed on the air pressure head fixing frame, and the upper end of the air pressure head is fixed on the air pressure head connecting block; a positioning bracket is installed at the front end of the air pressure head connecting block, and a positioning pre-pressing head is installed at the position of the positioning bracket corresponding to the workpiece downward; a lower punch is installed on the lower side of the C-shaped groove of the riveting seat, and the lower punch corresponds to the lower end of the air pressure head;

[0006] The clamping structure of the cylinder connector and the connector seat: a ring groove is formed on the cylinder connector, a long groove is formed on the connector seat, a protruding edge is formed at the upper end of the long groove, the lower end of the cylinder connector is inserted into the long groove, and the protruding edge is inserted into the ring groove;

[0007] Air pressure head: The air pressure head body is provided with a vertical punching channel and an oblique nail delivery channel which are interconnected. A punch inlet is provided at the upper end of the vertical punching channel, and a nail delivery inlet joint is installed at the upper end of the oblique nail delivery channel. The nail delivery inlet joint is connected to the air pressure rivet input device through a pipeline; the lower ends of the vertical punching channel and the oblique nail delivery channel are both connected to the punching nail delivery channel;

[0008] Turntable mechanism: includes turntable rotating mechanism, turntable fixture mechanism, and positioning mechanism. The turntable fixture mechanism is installed on the turntable of the turntable rotating mechanism. At least two sets of turntable fixture mechanisms are installed, one set is the working turntable mechanism, and the other set is the preparatory turntable mechanism;

[0009] Turntable rotating mechanism: the interior of the turntable fixed bracket is hollow, the motor is fixed on the outside of the turntable fixed bracket, the motor shaft of the motor extends into the turntable fixed bracket and is connected to the speed change mechanism, the turntable is fixedly installed on the upper end of the turntable shaft connected to the upper end of the speed change mechanism, and a slewing support gear is installed on the turntable shaft between the turntable and the turntable fixed bracket, a swing lock seat is installed on the upper end of the turntable fixed bracket, a swing rod is installed on the swing lock seat, a plane lock tooth is installed at the front end of the swing rod, and the inner surface of the plane lock tooth has a flat tooth meshing with the slewing support gear;

[0010] Turntable fixture mechanism: There is a driven disk center fixed shaft in the middle of the driven disk tray, and an elastic tension tongue is provided on the outside of the driven disk center fixed shaft. A plurality of positioning pins are provided on the driven disk tray corresponding to the process holes on the driven disk; the bearing seat is fixed on the turntable, and a turntable shaft is installed inside the bearing seat through a bearing. The lower end of the turntable shaft is connected to the motor shaft of the rotating motor, and a rotating table is installed on the upper end of the turntable shaft. The turntable fixing pin passes through the rotating table, and the top end is fixedly connected to the bottom end of the driven disk tray, and a turntable spring is sleeved on the turntable fixing pin between the driven disk tray and the rotating table;

[0011] Positioning mechanism: The positioning mechanism is divided into the working end positioning mechanism and the preparation end positioning mechanism.

[0012] Working end positioning mechanism: an L-shaped bracket is installed on the side of the turntable fixed bracket, the cylinder is fixed on the L-shaped bracket, a pull head is installed on the top of the cylinder piston rod, an inverted T-shaped slot is opened on the top of the pull head, the lower end of the pull rod is an inverted T hook, the inverted T hook is matched and installed in the inverted T-shaped slot, a through hole larger than the outer diameter of the pull rod is opened on the turntable, a sliding sleeve is installed on the turntable corresponding to the through hole, a top plug whose lower end matches the sliding sleeve is placed in the sliding sleeve, and the top plug head at the upper end of the top plug corresponds to the positioning slot under the driven disk tray in the turntable rotating mechanism;

[0013] Preparatory end positioning mechanism: A preparatory positioning cylinder is installed on the preparatory turntable mechanism corresponding to the stand, and a positioning plug is installed on the top of the piston rod of the preparatory positioning cylinder, and the positioning plug corresponds to the slot on the bottom surface of the rotating motor.

[0014] The present invention is driven by customer demand and aims at just-in-time production. It fully combines production factors such as people, machines, materials, methods, and environment to achieve streamlined and rhythmic production. The production line technology level is applicable to the actual site. It is a high-tech and high-level production automation production line. It improves the first-time qualified rate of products, optimizes the process, improves production efficiency, reduces manufacturing costs, and reduces the labor intensity of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the present invention;

[0016] Figure 2 It is a side view of the riveting mechanism structure of the present invention;

[0017] Figure 3 The present invention Figure 2 A magnified view of part A;

[0018] Figure 4 It is a schematic diagram of the clamping structure of the cylinder connector and the connecting seat of the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the air pressure head of the present invention;

[0020] Figure 6 The present invention Figure 2 3D rendering of Part A;

[0021] Figure 7 It is a schematic diagram of the structure of the turntable mechanism of the present invention;

[0022] Figure 8 The present invention Figure 7 Enlarged view of part B (working end positioning mechanism);

[0023] Fig. 9 It is an enlarged view of the rotary power part of the turntable of the present invention;

[0024] Fig.10 It is a schematic diagram of the structure of the turntable fixture mechanism of the present invention;

[0025] Fig.11 It is an enlarged view of the structure of the preparation end positioning mechanism of the present invention;

[0026] Above Figure 1 , Figure 2 and Figure 3 In order to show the structure, the fixing mechanism of the air pressure head is deleted; Figure 6 It is specifically displayed in. DETAILED DESCRIPTION

[0027] The present invention includes two major mechanisms, a riveting mechanism 1 and a turntable mechanism 2, which are installed on a stand 3 and cooperate with each other. The stand 3 is only a frame body, which is used to support the riveting mechanism 1 and the turntable mechanism 2 of the present invention. The riveting structure 1 is used to transport rivets and rivet the driven disk and the transmission disk; the turntable mechanism 2 has two placement tables (i.e., a working turntable fixture mechanism and a preparatory turntable fixture mechanism with exactly the same structure), that is, the working turntable fixture mechanism is at the riveting position of the riveting mechanism, and the preparatory turntable fixture mechanism is at the position where the staff places the driven disk and the transmission disk. By rotating the entire turntable, the working turntable fixture mechanism and the preparatory turntable fixture mechanism are switched back and forth, thereby performing reciprocating work, and the two placement tables are always in one working state and one preparatory state.

[0028] Riveting mechanism 1: The riveting seat 5 has a C-shaped groove 6, and a gas-liquid booster cylinder 4 is installed on the riveting seat 5 at the upper end of the C-shaped groove 6. The gas-liquid booster cylinder 4 can use gas pressure or hydraulic pressure. The piston rod of the gas-liquid booster cylinder 4 passes through the upper edge of the riveting seat 5 and a cylinder connector 7 is installed at the end. The cylinder connector 7 is clamped on the connecting seat 8. The piston rod of the gas-liquid booster cylinder 4 can push the cylinder connector 7 and the connecting seat 8 to work simultaneously.

[0029] An inverted L-shaped connecting block 15 is fixedly installed at the lower end of the connecting seat 8, and a sliding sleeve 12 is installed on the rear side of the inverted L-shaped connecting block 15. The sliding sleeve 12 matches the sliding rail 13, and the sliding rail 13 is fixedly installed on the rear side wall of the C-shaped groove 6. The inverted L-shaped connecting block 15 is fixedly connected to the connecting seat 8, so it moves up and down at the same time as the connecting seat 8 moves up and down, and moves up and down through the cooperation of the sliding sleeve 12 and the sliding rail 13. The sliding sleeve 12 and the sliding rail 13 simultaneously stabilize the moving trajectory of the inverted L-shaped connecting block 15.

[0030] A punching rod 17 is fixedly mounted on the inverted L-shaped connecting block 15 , and the punching rod 17 extends into the air pressure head 11 from the punch insertion port 21 , which will be described in detail in the air pressure head section below and will not be described in detail here.

[0031] A side fixing plate 27 is fixedly installed on the side walls on both sides of the riveted seat 5, an air pressure head mounting plate 26 is fixedly installed between the two side fixing plates 27, an air pressure head fixing frame 25 is fixedly installed on the air pressure head mounting plate 26, the air pressure head 11 is fixedly installed on the air pressure head fixing frame 25, and the upper end of the air pressure head 11 is fixed on the air pressure head connecting block 16, the two side fixing plates 27 are respectively placed on both sides of the riveted seat 5, and an air pressure head mounting plate 26 is clamped in the middle, these two parts constitute a hanging rack, and then an air pressure head fixing frame 25 for installing the air pressure head 11 is installed on this hanging rack, but if the position of this hanging rack is reasonably processed, the air pressure head fixing frame 25 can also be cancelled, and the air pressure head 11 can be directly installed on the hanging rack, so that the air pressure head 11 can be stabilized at the same time by the air pressure head fixing frame 25 on the side and the air pressure head connecting block 16 on the top, and no deviation will occur during operation.

[0032] A positioning bracket 10 is installed at the front end of the air pressure head connecting block 16, and a positioning pre-pressing head 9 is installed below the positioning bracket 10 at a position corresponding to the workpiece; this part is an auxiliary part, so the number of positioning pre-pressing heads 9 is generally three, and the three positioning pre-pressing heads 9 are arranged in a triangle, and the lower ends correspond to the flat surfaces of the driven disk respectively, so that it can be known whether the driven disk under the air pressure head is horizontal.

[0033] A lower punch 14 is installed on the lower side of the C-shaped groove 6 of the riveting seat 5, and the lower punch 14 corresponds to the lower end of the air pressure head 11; the lower punch 14 is a fixed die that is subjected to force in the opposite direction to the punch rod 17 inside the air pressure head 11. When the punch rod 17 punches the rivet downward, the rivet is riveted and deformed through the extrusion of the punch rod 17 and the lower punch 14, so that the driven plate and the transmission plate are riveted and fixed together.

[0034] The clamping structure of the cylinder connector 7 and the connecting seat 8: a ring groove 18 is formed on the cylinder connector 7, a long groove 20 is formed on the connecting seat 8, a protruding edge 19 is formed on the upper end of the long groove 20, the lower end of the cylinder connector 7 is inserted into the long groove 20, and the protruding edge 19 is inserted into the ring groove 18; This part of the structure is arranged for convenient disassembly and assembly, and the cylinder connector 7 slides the head of the cylinder connector 7 into the long groove 20 through the cooperation of the ring groove 18 and the protruding edge 19, so that the cylinder connector 7 and the connecting seat 8 can be relatively fixed, and the thickness and outer diameter of the head of the cylinder connector 7 are roughly the same as the thickness and width of the long groove 20, that is, zero clearance cooperation, which basically ensures that the cylinder connector 7 and the connecting seat 8 work synchronously.

[0035] Air pressure head 11: A vertical punching channel and an oblique nail delivery channel are provided in the body 24 of the air pressure head 11, and a punch inlet 21 is provided at the upper end of the vertical punching channel, and a nail delivery inlet joint 22 is installed at the upper end of the oblique nail delivery channel, and the nail delivery inlet joint 22 is connected to the air pressure rivet input device through a pipeline; the lower ends of the vertical punching channel and the oblique nail delivery channel are both connected to the punching nail delivery channel 23; the air pressure rivet input device is an existing device, which can deliver rivets to a specified position through the function of air pressure. The air pressure head 11 has two functions. The first function is to deliver the rivets to the nail delivery inlet through the air pressure rivet input device The rivet is inserted into the rivet hole 22 and enters the punching rivet hole 23 through the inclined rivet hole. Finally, the rivet is output from the lower end of the punching rivet hole 23 and falls into the riveting hole of the driven plate and the transmission plate. After being placed, the gas-liquid booster cylinder 4 works, and the piston rod of the gas-liquid booster cylinder 4 pushes the cylinder connector 7, the connecting seat 8, the inverted L-shaped connecting block 15 and the punching rod 17 to move downward at the same time. Since the front end of the punching rod 17 has been extended from the upper end of the punch inlet 21, it continues to move downward along the vertical punching channel and the punching rivet hole 23, and presses against the upper end of the rivet. The rivet is squeezed and deformed by cooperating with the lower punch 14 to squeeze and punch until the riveting is completed.

[0036] Turntable mechanism 2: includes a turntable rotating mechanism, a turntable fixture mechanism 28, and a positioning mechanism. The turntable fixture mechanism is installed on the turntable 32 of the turntable rotating mechanism. At least two sets of turntable fixture mechanisms are installed, one set is a working turntable fixture mechanism, and the other set is a preparatory turntable fixture mechanism. The turntable mechanism 2 is a mechanism that can place components and transport components to the corresponding position of the riveting mechanism 1, and then the riveting mechanism 1 rivets the driven disk and the transmission disk together. The working turntable fixture mechanism refers to the turntable fixture mechanism placed at the corresponding position of the riveting mechanism 1 for the riveting process, and the preparatory turntable fixture mechanism is a mechanism where the staff places the driven disk and the transmission disk on the turntable fixture mechanism. Due to the rotation of the turntable, the positions of the working turntable fixture mechanism and the preparatory turntable fixture mechanism can be interchanged, and the riveting process can be continuous by this reciprocating process.

[0037] Turntable rotating mechanism: The interior of the turntable fixed bracket 34 is hollow, the motor 30 is fixed on the outside of the turntable fixed bracket 34, the motor shaft of the motor 30 extends into the turntable fixed bracket 34 and is connected to the speed change mechanism 31, the turntable 32 is fixedly installed on the upper end of the turntable shaft 35 connected to the upper end of the speed change mechanism 31, and a slewing support gear 43 is installed on the turntable shaft 35 between the turntable 32 and the turntable fixed bracket 34, a swing lock seat 44 is installed on the upper end of the turntable fixed bracket 34, a swing rod 45 is installed on the swing lock seat 44, a plane lock tooth 42 is installed on the front end of the swing rod 45, and the inner surface of the plane lock tooth 42 has a plane meshing with the slewing support gear 43 teeth; the turntable rotation mechanism is the power mechanism that controls the rotation of the entire turntable. The power source comes from the motor 30, which drives the gearbox (speed change mechanism 31) through the motor 30, and then transmits the power to the turntable shaft 35 through the gearbox, thereby driving the turntable 32 above to rotate, so that the working turntable fixture mechanism and the preparatory turntable fixture mechanism on the turntable 32 switch positions; the plane lock tooth 42, the swing lock seat 44 and the swing rod 45 constitute a locking mechanism, and the swing rod 45 swings with the swing lock seat 44 as the axis, thereby driving the teeth on the plane of the plane lock tooth 42 to engage with the teeth on the slewing support gear 43, thereby completing the locking, and vice versa, the locking can be released. This part can be manually operated or completed with the existing electronic control device. After locking, a positioning pin can be set in the swing lock seat 44 to lock the locking mechanism. This positioning pin must be able to be released or locked at any time.

[0038] Turntable clamp mechanism 28: There is a driven disk center fixed shaft 47 in the middle of the driven disk tray 49, and an elastic tensioning tongue 54 is provided on the outer side of the driven disk center fixed shaft 47. A plurality of positioning pins 48 are provided on the driven disk tray 49 corresponding to the process holes on the driven disk; the bearing seat 52 is fixed on the turntable 32, and a turntable shaft 55 is installed inside the bearing seat 52 through a bearing. The lower end of the turntable shaft 55 is connected to the motor shaft of the rotating motor 53, and a rotating table 46 is installed on the upper end of the turntable shaft 55. The turntable fixing pin 51 passes through the rotating table 46, and the top end is fixedly connected to the bottom end of the driven disk tray 49, and a turntable spring 50 is mounted on the turntable fixing pin 51 between the driven disk tray 49 and the rotating table 46; the turntable clamp mechanism 28 is an operating table, and two are conventionally used, one working turntable clamp mechanism and the other preparatory turntable clamp mechanism, that is, one is riveting and the other is placing the workpiece for preparation.

[0039] The bearing seat 52 in the turntable clamp mechanism 28 is a fixed connection part, which is used to install the entire turntable clamp mechanism on the turntable and can rotate independently with respect to the turntable. Therefore, a bearing seat is used, and the turntable shaft 55 is connected internally by a bearing. The power of this rotation is obtained by a rotating motor 53. The rotating motor 53 can be a stepping motor and controlled as needed.

[0040] The driven disk center fixing shaft 47 and the positioning pin 48 on the surface of the turntable clamp mechanism 28 are process holes corresponding to the driven disk and the transmission disk, so that the driven disk and the transmission disk can be positioned on the surface of the driven disk tray 49 without rotation.

[0041] The elastic tensioning tongue 54 arranged on the edge of the central fixed shaft 47 of the driven disk in the turntable clamp mechanism 28 is an elastic element controlled by an internal spring. After the hole in the driven disk is sleeved on the central fixed shaft 47 of the driven disk, it is tightened by the tension of the elastic tensioning tongue 54. When removing the riveted driven disk and transmission disk, the tightening can be released by simply retracting the elastic tensioning tongue 54.

[0042] Positioning mechanism: The positioning mechanism is divided into a working end positioning mechanism and a preparatory end positioning mechanism. The positioning mechanism is set for the turntable mechanism 2 and the riveting mechanism 1 to accurately rivet the corresponding positions. Setting two will make the accuracy higher. The working end positioning mechanism refers to the positioning mechanism corresponding to the working turntable fixture mechanism on the side close to the riveting mechanism 1, and the preparatory end positioning mechanism refers to the positioning mechanism corresponding to the preparatory turntable fixture mechanism on the side close to the preparatory turntable fixture mechanism.

[0043] Working end positioning mechanism: An L-shaped bracket 37 is installed on the side of the turntable fixing bracket 34, and the cylinder 36 is fixed on the L-shaped bracket 37. A pull head 41 is installed on the top of the piston rod of the cylinder 36, and an inverted T-shaped slot 58 is opened at the top of the pull head 41. The lower end of the pull rod 56 is an inverted T hook 39, and the inverted T hook 39 is matched and installed in the inverted T-shaped slot 58. A through hole with a larger outer diameter than the pull rod 56 is opened on the turntable 32, and a sliding sleeve 57 is installed on the turntable 32 corresponding to the through hole. A top plug 38 whose lower end matches the sliding sleeve 57 is placed in the sliding sleeve 57, and the top plug 38 is The top plug head 40 at the end corresponds to the positioning groove under the driven disk tray 49 in the turntable rotating mechanism 28; the locking and releasing of the working end positioning mechanism is completed by the extension and contraction of the piston rod of the cylinder 36 to drive the pull rod 56. When the piston rod moves upward, the pull rod 56 passes through the through hole on the turntable 32 and extends into the sliding sleeve 57, pushing the top plug 38 to move upward. At this time, the top plug head 40 at the top of the top plug 38 extends into the positioning hole under the working end turntable clamp mechanism for positioning. At this time, the working end turntable clamp mechanism is placed to rotate and the working end turntable clamp mechanism can be supported.

[0044] Preparatory end positioning mechanism: A preparatory positioning cylinder 33 is installed on the stand 3 corresponding to the preparatory turntable mechanism, and a positioning plug 60 is installed on the top of the piston rod 59 of the preparatory positioning cylinder 33, and the positioning plug 60 corresponds to the slot on the bottom surface of the rotating motor 53. The preparatory end positioning mechanism is relatively simple, and the piston rod 59 of the preparatory positioning cylinder 33 pushes the positioning plug 60 at the top to be inserted into the jack at the bottom of the preparatory turntable fixture mechanism, which plays a positioning and supporting role.

Claims

1. An automatic riveting device for driven disc parts, characterized in that: It comprises two major mechanisms, a riveting mechanism (1) and a turntable mechanism (2) which are installed on a frame (3) and cooperate with each other. Riveting mechanism (1): the riveting seat (5) has a C-shaped groove (6), a gas-liquid boosting cylinder (4) is installed on the riveting seat (5) at the upper end of the C-shaped groove (6), the piston rod of the gas-liquid boosting cylinder (4) passes through the upper edge of the riveting seat (5) and is installed with a cylinder connecting piece (7) at the end, and the cylinder connecting piece (7) is clamped on the connecting seat (8); an inverted L-shaped connecting block (15) is fixedly installed at the lower end of the connecting seat (8), a sliding sleeve (12) is installed on the rear side of the inverted L-shaped connecting block (15), the sliding sleeve (12) matches the sliding rail (13), and the sliding rail (13) is fixedly installed on the rear side wall of the C-shaped groove (6); a punching rod (17) is fixedly installed on the inverted L-shaped connecting block (15), and the punching rod (17) extends from the punch insertion port (21) into the gas pressure head (11); side fixing plates (27) are fixedly installed on the side walls on both sides of the riveting seat (5); a gas pressure head mounting plate (26) is fixedly installed between the two side fixing plates (27); a gas pressure head fixing frame (25) is fixedly installed on the gas pressure head mounting plate (26); the gas pressure head (11) is fixedly installed on the gas pressure head fixing frame (25), and the upper end of the gas pressure head (11) is fixed on the gas pressure head connecting block (16); a positioning bracket (10) is installed at the front end of the gas pressure head connecting block (16); a positioning pre-pressing head (9) is installed at the positioning bracket (10) at a position corresponding to the workpiece downward; a lower punch (14) is installed at the lower side of the C-shaped groove (6) of the riveting seat (5), and the lower punch (14) corresponds to the lower end of the gas pressure head (11); The cylinder connecting member (7) and the connecting seat (8) have a clamping structure: a ring groove (18) is formed on the cylinder connecting member (7), a long groove (20) is formed on the connecting seat (8), a protruding edge (19) is formed at the upper end of the long groove (20), the lower end of the cylinder connecting member (7) is inserted into the long groove (20), and the protruding edge (19) is inserted into the ring groove (18); Air pressure head (11): a body (24) of the air pressure head (11) is provided with a vertical punching channel and an oblique nail delivery channel which are communicated with each other, a punch placement inlet (21) is provided at the upper end of the vertical punching channel, a nail delivery inlet connector (22) is installed at the upper end of the oblique nail delivery channel, and the nail delivery inlet connector (22) is communicated with the air pressure rivet input device through a pipeline; the lower ends of the vertical punching channel and the oblique nail delivery channel are both communicated with the punching nail delivery channel (23); Turntable mechanism (2): comprising a turntable rotating mechanism, a turntable fixture mechanism (28), and a positioning mechanism. The turntable fixture mechanism is installed on the turntable (32) of the turntable rotating mechanism. At least two sets of the turntable fixture mechanism are installed, one set is a working turntable mechanism, and the other set is a preparatory turntable mechanism. A turntable rotating mechanism: the interior of the turntable fixing bracket (34) is hollow, the motor (30) is fixed on the outside of the turntable fixing bracket (34), the motor shaft of the motor (30) extends into the turntable fixing bracket (34) and is connected to the speed change mechanism (31), the turntable (32) is fixedly mounted on the upper end of a turntable shaft (35) connected to the upper end of the speed change mechanism (31), and a slewing support gear (43) is mounted on the turntable shaft (35) between the turntable (32) and the turntable fixing bracket (34), a swing lock seat (44) is mounted on the upper end of the turntable fixing bracket (34), a swing rod (45) is mounted on the swing lock seat (44), a plane lock tooth (42) is mounted on the front end of the swing rod (45), and the inner surface of the plane lock tooth (42) has a flat tooth meshing with the slewing support gear (43); A turntable fixture mechanism (28): a driven disk tray (49) has a driven disk center fixed shaft (47) in the middle, an elastic tensioning tongue (54) is provided on the outer side of the driven disk center fixed shaft (47), and a plurality of positioning pins (48) are provided on the driven disk tray (49) corresponding to the process holes on the driven disk; a bearing seat (52) is fixed on the turntable (32), a turntable fixture turntable shaft (55) is installed inside the bearing seat (52) through a bearing, the lower end of the turntable fixture turntable shaft (55) is connected to the motor shaft of the rotating motor (53), a turntable (46) is installed on the upper end of the turntable fixture turntable shaft (55), a turntable fixing pin (51) passes through the turntable (46), and the top end is fixedly connected to the bottom end of the driven disk tray (49), and a turntable spring (50) is sleeved on the turntable fixing pin (51) between the driven disk tray (49) and the turntable (46); Positioning mechanism: The positioning mechanism is divided into the working end positioning mechanism and the preparation end positioning mechanism. Working end positioning mechanism: an L-shaped bracket (37) is installed on the side of the turntable fixed bracket (34), the cylinder (36) is fixed on the L-shaped bracket (37), a pull head (41) is installed on the top of the piston rod of the cylinder (36), an inverted T-shaped slot (58) is opened at the top of the pull head (41), the lower end of the pull rod (56) is an inverted T hook (39), the inverted T hook (39) is matched and installed in the inverted T-shaped slot (58), a through hole with a larger outer diameter than the pull rod (56) is opened on the turntable (32), a working end sleeve (57) is installed on the turntable (32) corresponding to the through hole, a top plug (38) whose lower end matches the working end sleeve (57) is placed in the working end sleeve (57), and the top plug head (40) at the upper end of the top plug (38) corresponds to the positioning groove below the driven disk tray (49) in the turntable clamp mechanism (28); Preparatory end positioning mechanism: A preparatory positioning cylinder (33) is installed on the stand (3) corresponding to the preparatory turntable mechanism, and a positioning plug (60) is installed on the top end of the piston rod (59) of the preparatory positioning cylinder (33), and the positioning plug (60) corresponds to the slot on the bottom surface of the rotating motor (53).

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