CN217122637U

CN217122637U - Automatic indexing device

Info

Publication number: CN217122637U
Application number: CN202220973813.9U
Authority: CN
Inventors: 吕明; 张伍磊; 尚建国; 姜旭东; 王学亮
Original assignee: Shandong Taiming Machinery Co ltd
Current assignee: Shandong Taiming Machinery Co ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-08-05
Anticipated expiration: 2032-04-25

Abstract

The application relates to an automatic indexing device, which comprises a rack, a three-jaw chuck and a driving assembly, wherein the three-jaw chuck is rotationally arranged on the rack, and the driving assembly is arranged on the rack and connected with the three-jaw chuck; still include positioning mechanism, positioning mechanism includes connecting block, connecting rod, sensor and coupling assembling, the connecting block sets up in the frame, the connecting rod passes through coupling assembling connects on the connecting block, the sensor sets up on the connecting rod, the sensor with the drive assembly electricity is connected. This application has the effect that improves the processingquality of work piece.

Description

Automatic indexing device

Technical Field

The application relates to the technical field of workpiece machining, in particular to an automatic indexing device.

Background

When the circumferential side wall of the circular workpiece needs to be uniformly grooved, an automatic indexing device is needed.

At present, a Chinese patent with an authorization publication number of CN202684640U discloses an automatic flange indexing device, which comprises a base, a worm wheel, a three-jaw chuck, a worm and a servo motor, wherein the base is provided with the worm wheel; a worm is arranged beside the worm wheel and rotates in a matching way with the worm wheel, and the worm is connected with a servo motor; the worm wheel is the same as the center of the three-jaw chuck. The uniform distribution angle of walking is set through the servo motor, and after a hole is drilled, the servo motor drives the worm to rotate for a certain number of turns, so that the worm wheel rotates for a set angle.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: although the servo motor has set the uniform distribution angle of walking, when the worm drives the worm wheel to rotate, the rotation angle of the worm wheel is controlled according to the distance between the spiral sections on the worm, so a certain amount of deviation can occur in the rotation angle of the worm wheel.

SUMMERY OF THE UTILITY MODEL

In order to improve the processing quality of a workpiece, the application provides an automatic indexing device.

The application provides an automatic indexing means adopts following technical scheme:

an automatic indexing device comprises a rack, a three-jaw chuck and a driving assembly, wherein the three-jaw chuck is rotatably arranged on the rack, and the driving assembly is arranged on the rack and connected with the three-jaw chuck; still include positioning mechanism, positioning mechanism includes connecting block, connecting rod, sensor and coupling assembling, the connecting block sets up in the frame, the connecting rod passes through coupling assembling connects on the connecting block, the sensor sets up on the connecting rod, the sensor with the drive assembly electricity is connected.

By adopting the technical scheme, the connecting rod with the sensor is connected to the connecting block through the connecting assembly, and then an initial point is arranged on the three-jaw chuck; when the driving assembly drives the three-jaw chuck to rotate for a certain angle, the workpiece is processed; then the driving team drives the three-jaw chuck to rotate reversely, and when the sensor detects the starting point, the driving assembly is closed; then, according to the set angle, the driving assembly drives the three-jaw chuck to rotate for a certain amount of angle; when the three-jaw chuck rotates by different angles, the three-jaw chuck returns to the initial point and then rotates by the arranged positioning mechanism; therefore, the deviation of the required rotation angle of the three-jaw chuck is smaller, and the processing quality of the workpiece is improved.

Optionally, the connecting block is provided with a mounting groove clamped with the connecting rod, the connecting assembly comprises a first connecting plate, a second connecting plate and a clamping nut, and the first connecting plate is fixedly arranged on the connecting rod and abuts against the side wall of the connecting block; the second connecting plate is arranged on one end, far away from the first connecting plate, of the connecting rod in a sliding mode and abuts against the side wall of the connecting block; the connecting rod is provided with external threads on the peripheral side wall of one end far away from the first connecting plate, and the abutting nut is in threaded connection with the external threads and abuts against the second connecting plate.

By adopting the technical scheme, the connecting rod is firstly clamped in the placing groove, the first connecting plate abuts against the side wall of the connecting block, then the abutting nut is rotated, and the abutting nut is in threaded connection with the external thread on the connecting rod, so that when the abutting nut rotates, the abutting nut can drive the second connecting plate to move towards the direction close to the connecting block, and the second connecting plate abuts against the side wall of the connecting block; the connecting assembly is simple in structure and convenient to operate.

Optionally, a positioning assembly is arranged on the connecting block, the positioning assembly comprises a positioning rod and a spring, a first through hole communicated with the mounting groove is formed in the connecting block, the positioning rod is slidably arranged in the first through hole, and a positioning groove clamped with the positioning rod is formed in the connecting rod; one end of the spring is connected to the side wall of the first through hole, and the other end of the spring is connected to the connecting rod.

By adopting the technical scheme, the positioning rod is pulled towards the direction far away from the placing groove, so that the spring is deformed; then the connecting rod is clamped to the placing groove, the positioning rod is loosened, the spring recovers elastic deformation, and under the action of the elastic force of the spring, the positioning rod can move towards the direction close to the connecting rod and is clamped with the positioning groove in the connecting rod; finally, the abutting nut is rotated; the positioning assembly who sets up can improve the stability of connecting rod on the connecting block.

Optionally, the driving assembly includes a driving shaft, a worm wheel, a placing block, a worm and a driving motor, the driving shaft is fixedly connected with the three-jaw chuck, and the worm wheel is arranged on the driving shaft; the placing block is arranged on the rack, the worm is rotationally arranged on the placing block and meshed with the worm wheel, and the driving motor is arranged on the placing block and connected with one end of the worm; the connecting block sets up place on the piece, the sensor with driving motor electricity is connected.

Through adopting above-mentioned technical scheme, driving motor drives the worm and rotates, and the worm wheel with worm meshing drives the drive shaft and rotates, and the three-jaw chuck that is connected with the drive shaft will follow and rotate.

Optionally, place and be provided with the installation component on the piece, the installation component includes mounting panel and construction bolt, the mounting panel sets up place on the piece and contradict the frame, construction bolt passes the mounting panel with frame threaded connection.

By adopting the technical scheme, the mounting plate on the placing block is firstly abutted against the rack, the worm is meshed with the worm wheel, and then the mounting bolt penetrates through the mounting plate to be in threaded connection with the rack; the installation component can make worm and worm wheel separately be convenient for maintain the operation when worm or worm wheel damage needs the maintenance.

Optionally, a support mechanism is arranged on the rack, the support mechanism includes a rotating shaft, a support plate and an adjusting assembly, the rotating shaft is rotatably arranged on the rack, the support plate is arranged on the rotating shaft, and the placing block can abut against the support plate; the adjusting component is arranged on the rack and connected with the rotating shaft.

Through adopting above-mentioned technical scheme, after the rack is contradicted to the mounting panel when worm and worm wheel meshing, start adjusting part, adjusting part drives the pivot and rotates, and the pivot drives the backup pad and rotates, makes the backup pad conflict and places the piece and support placing the piece, and the follow-up construction bolt of being convenient for passes mounting panel and frame threaded connection.

Optionally, the adjusting assembly includes an adjusting motor, a driving gear and a driven gear, the adjusting motor is disposed on the rack, and the driving gear is disposed on the adjusting motor; the driven gear is arranged on the rotating shaft and meshed with the driving gear.

By adopting the technical scheme, the output shaft of the adjusting motor drives the driving gear to rotate, and the driven gear meshed with the driving gear drives the rotating shaft to rotate; the adjusting component is simple in structure and convenient to operate.

Optionally, a fixing assembly is arranged on the connecting block and comprises a fixing block and a fixing bolt, the fixing block is arranged on the connecting block, and the fixing bolt penetrates through the fixing block and is in threaded connection with the placing block.

By adopting the technical scheme, the fixing block on the connecting block is abutted against the placing block, and then the fixing bolt penetrates through the fixing block to be in threaded connection with the placing block, so that the connecting block is connected to the placing block; the fixed subassembly that sets up makes the connecting block with place the piece and can dismantle the setting, is convenient for change the connecting block when the connecting block damage.

Optionally, an adjusting mechanism is arranged on the placing block, the adjusting mechanism includes an adjusting block and a connecting bolt, a sliding groove is formed in the placing block, the adjusting block is slidably arranged in the sliding groove, a threaded hole is formed in the adjusting block, and the connecting block is arranged on the adjusting block; the placing block is provided with a second through hole communicated with the sliding groove, and the connecting bolt penetrates through the second through hole to be in threaded connection with the threaded hole.

By adopting the technical scheme, the adjusting block slides in the sliding groove, and after the adjusting block slides to a proper position, the connecting bolt penetrates through the second through hole to be in threaded connection with the threaded hole; the adjusting block can drive the connecting block to move when moving, and the position of the sensor on the connecting rod can be changed when the connecting block moves, so that the application range of the positioning mechanism is widened.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the three-jaw chuck rotates by different angles, the three-jaw chuck returns to the initial point and then rotates by the arranged positioning mechanism; therefore, the deviation of the required rotation angle of the three-jaw chuck is smaller, and the processing quality of the workpiece is improved;

2. the stability of the connecting rod on the connecting block can be improved by the arranged positioning assembly;

3. the adjusting mechanism can improve the application range of the positioning mechanism.

Drawings

Fig. 1 is a schematic structural view of an automatic indexing device in an embodiment of the present application;

FIG. 2 is a schematic structural view of a mounting assembly in an embodiment of the present application;

FIG. 3 is an enlarged view of A in FIG. 1;

FIG. 4 is a schematic structural diagram of a positioning mechanism in an embodiment of the present application;

fig. 5 is a schematic structural diagram of a positioning assembly in an embodiment of the present application.

Reference numerals: 1. a frame; 2. a positioning mechanism; 21. connecting blocks; 211. mounting grooves; 22. a connecting rod; 221. an external thread; 222. positioning a groove; 23. a connecting assembly; 231. a first connecting plate; 232. a second connecting plate; 233. tightly abutting the nut; 3. a positioning assembly; 31. positioning a rod; 32. a spring; 33. a limiting plate; 4. a drive assembly; 41. a drive shaft; 42. a worm gear; 43. placing the blocks; 431. a chute; 44. a worm; 45. a drive motor; 5. mounting the component; 51. mounting a plate; 52. installing a bolt; 6. a support mechanism; 61. a rotating shaft; 62. a support plate; 63. an adjustment assembly; 631. adjusting the motor; 632. a driving gear; 633. a driven gear; 7. a fixing assembly; 71. a fixed block; 72. fixing the bolt; 8. an adjustment mechanism; 81. an adjusting block; 82. and connecting the bolts.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses an automatic indexing device.

Referring to fig. 1 and 2, the automatic indexing device comprises a frame 1, wherein a three-jaw chuck is rotatably connected to the frame 1; the rack 1 is provided with a driving component 4 which is connected with the three-jaw chuck and drives the three-jaw chuck to rotate; the frame 1 is provided with a positioning mechanism 2.

Referring to fig. 1 and 2, the driving assembly 4 includes a driving shaft 41 rotatably connected to the frame 1, one end of the driving shaft 41 is fixedly connected to the three-jaw chuck, and one end of the driving shaft 41, which is far away from the three-jaw chuck, is keyed with a worm gear 42; the rack 1 is provided with a placing block 43, the placing block 43 is provided with a mounting assembly 5, the mounting assembly 5 comprises a mounting plate 51 integrally arranged on the placing block 43, the mounting plate 51 is abutted against the rack 1, and the mounting plate 51 is provided with a mounting bolt 52 which penetrates through the mounting plate 51 and is in threaded connection with the rack 1; a worm 44 meshed with the worm wheel 42 is rotatably connected in the placing block 43, a driving motor 45 is fixedly connected to the side wall of the placing block 43, and an output shaft of the driving motor 45 is connected with one end of the worm 44.

Referring to fig. 1 and 3, in order to facilitate the mounting bolt 52 to pass through the mounting plate 51 to be in threaded connection with the frame 1, a support mechanism 6 is disposed on the frame 1, the support mechanism 6 includes a rotating shaft 61 rotatably connected to the frame 1, and a support plate 62 is fixedly connected to the rotating shaft 61. The frame 1 is provided with an adjusting assembly 63, the adjusting assembly 63 comprises an adjusting motor 631 fixedly connected to the frame 1, and an output shaft of the adjusting motor 631 is in keyed connection with a driving gear 632; one end of the rotating shaft 61 is keyed with a driven gear 633 engaged with the driving gear 632.

Referring to fig. 2 and 4, the placing block 43 is provided with a sliding groove 431, and the placing block 43 is provided with a plurality of second through holes communicated with the sliding groove 431; placing block 43 and being provided with guiding mechanism 8, guiding mechanism 8 is including sliding the adjusting block 81 of connection in spout 431, has seted up the screw hole on the lateral wall of adjusting block 81, places and is provided with on the block 43 and passes second through-hole and screw hole threaded connection's connecting bolt 82.

Referring to fig. 2 and 4, the positioning mechanism 2 includes a connecting block 21, a fixing assembly 7 is disposed on the connecting block 21, the fixing assembly 7 includes a fixing block 71 integrally disposed on the connecting block 21, the fixing block 71 is perpendicular to the connecting block 21, and a fixing bolt 72 threaded with an adjusting block 81 through the fixing block 71 is disposed on the fixing block 71.

Referring to fig. 4, a placing groove is formed in one end of the connecting block 21 away from the fixing block 71, a cylindrical connecting rod 22 is clamped in the placing groove, and a sensor is connected to the connecting rod 22. The connecting block 21 is provided with a connecting assembly 23, the connecting assembly 23 comprises a first connecting plate 231 fixedly connected to the connecting rod 22, and the first connecting plate 231 abuts against the side wall of one side of the connecting block 21; one end of the connecting rod 22, which is far away from the first connecting plate 231, is connected with a second connecting plate 232 in a sliding manner, and the second connecting plate 232 abuts against the side wall of the connecting block 21, which is far away from one side of the first connecting plate 231; the connecting rod 22 is provided with an external thread 221 on the peripheral side wall of one end far away from the first connecting plate 231, and the connecting rod 22 is provided with a holding nut 233 in threaded connection with the external thread 221.

Referring to fig. 4 and 5, a first through hole communicated with the placing groove is formed in the connecting block 21, and a groove is formed in a side wall of the first through hole; a positioning assembly 3 is arranged on the connecting block 21, the positioning assembly 3 comprises a positioning rod 31 connected in the first through hole in a sliding manner, the cross sections of the positioning rod 31 and the first through hole are rectangular, and a positioning groove 222 clamped with the positioning rod 31 is formed in the connecting rod 22; a limiting plate 33 is fixedly connected to the positioning rod 31, and the limiting plate 33 is arranged in the groove in a sliding manner; the positioning rod 31 in the first through hole is sleeved with a spring 32, one end of the spring 32 is connected to the limiting plate 33, and the other end of the spring is connected to the side wall of the groove.

The implementation principle of the automatic indexing device in the embodiment of the application is as follows: the placing block 43 and the mounting plate 51 are abutted against the frame 1 and the worm 44 is engaged with the worm wheel 42. Then start accommodate motor 631, accommodate motor 631's output shaft drives driving gear 632 and rotates, and driving gear 632 drives driven gear 633 and rotates, and driven gear 633 drives pivot 61 and rotates, and pivot 61 drives backup pad 62 and rotates, makes backup pad 62 conflict place piece 43 and to placing piece 43 and support. Finally, the mounting bolt 52 penetrates through the mounting plate 51 to be in threaded connection with the machine frame 1, and the placing block 43 is connected to the machine frame 1.

The fixed block 71 is abutted against the adjusting block 81, and then the fixing bolt 72 is threaded through the fixed block 71 and connected with the adjusting block 81, so that the fixed block 71 is connected with the adjusting block 81.

Then the positioning rod 31 is pulled towards one end far away from the placing groove, the limiting plate 33 can slide in the groove, and the spring 32 can be compressed; then, the connecting rod 22 is clamped in the placing groove, the first connecting plate 231 abuts against the side wall of the connecting block 21, then the positioning rod 31 is released, the spring 32 recovers elastic deformation, the positioning rod 31 moves towards the connecting rod 22 under the action of the elastic force of the spring 32, and the positioning rod 31 is clamped with the positioning groove 222 on the connecting rod 22. Then, the tightening nut 233 is rotated, the tightening nut 233 moves on the connecting rod 22, and the tightening nut 233 drives the second connecting plate 232 to move toward the connecting block 21, so that the second connecting plate 232 is tightened against the side wall of the connecting block 21.

Then, the adjusting block 81 is slid in the sliding groove 431, the position of the adjusting block 81 is adjusted, and finally, the connecting bolt 82 is threaded through the second through hole and is connected with the threaded hole.

In the embodiment, four grooves are uniformly formed in the peripheral side wall of the workpiece, the worm wheel 42 is provided with a starting point, and after the three-jaw chuck clamps the workpiece to be machined, a first groove is formed in the peripheral side wall of the workpiece. Then the driving motor 45 is started, the output shaft of the driving motor 45 drives the worm 44 to rotate, the worm 44 drives the worm wheel 42 to rotate, the worm wheel 42 drives the driving shaft 41 to rotate, the driving shaft 41 drives the three-jaw chuck to rotate, the three-jaw chuck drives the workpiece to rotate, the workpiece can rotate by 90 degrees in the forward direction, the driving motor 45 is closed, and a second groove is formed in the peripheral side wall of the workpiece. Then starting the driving motor 45 to enable the worm wheel 42 to rotate reversely, and when the sensor detects the starting point, stopping the driving motor 45; and then, starting the driving motor 45 to enable the three-jaw chuck to drive the workpiece to rotate 180 degrees in the forward direction, closing the driving motor 45, and forming a third groove on the peripheral side wall of the workpiece. Then starting the driving motor 45 to enable the worm wheel 42 to rotate reversely, and when the sensor detects the starting point, stopping the driving motor 45; and then, starting the driving motor 45 to enable the three-jaw chuck to drive the workpiece to rotate for 270 degrees in the forward direction, closing the driving motor 45, and forming a fourth groove on the peripheral side wall of the workpiece.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An automatic indexing device comprises a rack (1), a three-jaw chuck and a driving assembly (4), wherein the three-jaw chuck is rotatably arranged on the rack (1), and the driving assembly (4) is arranged on the rack (1) and is connected with the three-jaw chuck; the device is characterized by further comprising a positioning mechanism (2), wherein the positioning mechanism (2) comprises a connecting block (21), a connecting rod (22), a sensor and a connecting assembly (23), the connecting block (21) is arranged on the rack (1), the connecting rod (22) is connected onto the connecting block (21) through the connecting assembly (23), the sensor is arranged on the connecting rod (22), and the sensor is electrically connected with the driving assembly (4).

2. The automatic indexing device according to claim 1, wherein the connecting block (21) is provided with a mounting groove (211) which is clamped with the connecting rod (22), the connecting assembly (23) comprises a first connecting plate (231), a second connecting plate (232) and a clamping nut (233), and the first connecting plate (231) is fixedly arranged on the connecting rod (22) and abuts against the side wall of the connecting block (21); the second connecting plate (232) is arranged at one end, away from the first connecting plate (231), of the connecting rod (22) in a sliding mode and abuts against the side wall of the connecting block (21); the connecting rod (22) is provided with external threads (221) on the peripheral side wall of one end far away from the first connecting plate (231), and the abutting nut (233) is in threaded connection with the external threads (221) and abuts against the second connecting plate (232).

3. The automatic indexing device according to claim 2, wherein a positioning assembly (3) is arranged on the connecting block (21), the positioning assembly (3) comprises a positioning rod (31) and a spring (32), a first through hole communicated with the mounting groove (211) is formed in the connecting block (21), the positioning rod (31) is slidably arranged in the first through hole, and a positioning groove (222) clamped with the positioning rod (31) is formed in the connecting rod (22); one end of the spring (32) is connected to the side wall of the first through hole, and the other end of the spring is connected to the connecting rod (22).

4. An automatic indexing device according to claim 1, wherein the driving assembly (4) comprises a driving shaft (41), a worm wheel (42), a placing block (43), a worm (44) and a driving motor (45), the driving shaft (41) is fixedly connected with the three-jaw chuck, and the worm wheel (42) is arranged on the driving shaft (41); the placing block (43) is arranged on the rack (1), the worm (44) is rotatably arranged on the placing block (43) and meshed with the worm wheel (42), and the driving motor (45) is arranged on the placing block (43) and connected with one end of the worm (44); the connecting block (21) is arranged on the placing block (43), and the sensor is electrically connected with the driving motor (45).

5. An automatic indexing device according to claim 4, wherein the placing block (43) is provided with a mounting assembly (5), the mounting assembly (5) comprises a mounting plate (51) and a mounting bolt (52), the mounting plate (51) is provided on the placing block (43) and abuts against the machine frame (1), and the mounting bolt (52) penetrates through the mounting plate (51) to be in threaded connection with the machine frame (1).

6. An automatic indexing device according to claim 5, wherein a support mechanism (6) is arranged on the frame (1), the support mechanism (6) comprises a rotating shaft (61), a support plate (62) and an adjusting component (63), the rotating shaft (61) is rotatably arranged on the frame (1), the support plate (62) is arranged on the rotating shaft (61), and the placing block (43) can abut against the support plate (62); the adjusting component (63) is arranged on the rack (1) and connected with the rotating shaft (61).

7. An automatic indexing device according to claim 6, characterized in that the adjusting assembly (63) comprises an adjusting motor (631), a driving gear (632) and a driven gear (633), the adjusting motor (631) being arranged on the machine frame (1), the driving gear (632) being arranged on the adjusting motor (631); the driven gear (633) is disposed on the rotating shaft (61) and engaged with the driving gear (632).

8. An automatic indexing device according to claim 4, characterized in that a fixing component (7) is arranged on the connecting block (21), the fixing component (7) comprises a fixing block (71) and a fixing bolt (72), the fixing block (71) is arranged on the connecting block (21), and the fixing bolt (72) penetrates through the fixing block (71) to be in threaded connection with the placing block (43).

9. The automatic indexing device according to claim 4, wherein an adjusting mechanism (8) is arranged on the placing block (43), the adjusting mechanism (8) comprises an adjusting block (81) and a connecting bolt (82), a sliding groove (431) is formed in the placing block (43), the adjusting block (81) is slidably arranged in the sliding groove (431), a threaded hole is formed in the adjusting block (81), and the connecting block (21) is arranged on the adjusting block (81); the placing block (43) is provided with a second through hole communicated with the sliding groove (431), and the connecting bolt (82) penetrates through the second through hole to be in threaded connection with the threaded hole.