Rapid indexing mechanism

Abstract

The invention relates to the technical field of automatic production line indexing, in particular to a rapid indexing mechanism which comprises a bottom plate, a fixing seat and a workbench, an eighth screw is arranged in the fixing seat, the fixing seat is mounted on the bottom plate through the eighth screw, a bearing mounting hole is formed in the fixing seat, two tapered roller bearings are arranged on the inner wall of the fixing seat, a bearing end cover is mounted on the fixing seat, and the workbench is mounted on the bearing end cover. According to the rapid indexing mechanism, the functions of indexing, bolt inserting, locking and the like can be achieved, air cylinders are selected as driving devices of all the parts, compressed air serves as a power source, meanwhile, sensors are arranged on all the actions, signal feedback can be conducted, and therefore the automation requirement of the whole rapid indexing mechanism is met; therefore, the rapid indexing mechanism has the advantages of being simple in structure, low in price, high in response speed, high in indexing precision, high in adaptability, good in stability, high in automation degree and the like, and can be widely applied to automatic production lines.

Description

Technical Field

[0001] The invention relates to the technical field of automatic production line indexing, and in particular to a rapid indexing mechanism. Background Art

[0002] Nowadays, various industries are developing rapidly. With the advancement of science and technology and the development of society, various industries have put forward higher and higher requirements for automation, especially in automated production lines, where automatic indexing mechanisms are often used. Nowadays, many indexing mechanisms have relatively complex structures, most of which are electrically driven, with relatively high overall structural costs and average indexing accuracy. Therefore, we proposed a fast indexing mechanism to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art that the indexing mechanism has a relatively complex structure, most of them are electrically driven, the overall structure cost is relatively high, and the indexing accuracy is average, and a fast indexing mechanism is proposed.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a rapid indexing mechanism, including a base plate, a fixed seat and a workbench, the fixed seat is provided with an eighth screw, and is installed on the base plate by the eighth screw, the fixed seat is provided with a bearing mounting hole, and the inner wall is provided with two tapered roller bearings, the fixed seat is provided with a bearing end cover, the workbench is arranged above the base plate, the lower surface of the workbench is provided with a positioning shaft, the positioning shaft cooperates with the inner hole of the tapered roller bearing, and a locking nut is provided at one end to lock the workbench, fifteen shifting blocks are evenly arranged on the bottom surface of the workbench, and fifteen holes are evenly arranged on the bottom surface, and positioning bushings are installed in the holes, the surface of the base plate is provided with an indexing device, the workbench is provided with a locking device, and the surface of the base plate is provided with a latch device.

[0005] Preferably, the locking device includes an expansion sleeve arranged in the workbench, the expansion sleeve is provided with a tapered hole, a wedge is fitted in the tapered hole of the expansion sleeve, a transfer block is provided at the top of the wedge, a third screw is provided in the transfer block, and the transfer block is installed on the top of the wedge through the third screw, a locking cylinder is provided on the surface of the base plate, a sixteenth screw is provided on the locking cylinder, and the base plate is installed through the sixteenth screw, a driving screw is installed at the piston end of the locking cylinder, and the end of the driving screw is connected to the transfer block, through the above components, the locking cylinder moves downward under the action of compressed air, so that the driving screw drives the wedge to move downward, the expansion sleeve is expanded, and the workbench is tightened, thereby ensuring the stability of the workbench when it is rotated to a certain angle.

[0006] Preferably, the indexing device includes an indexing cylinder support located above the base plate, a seventh screw is provided in the indexing cylinder support and is mounted on the base plate through the seventh screw, an indexing cylinder body is provided on one side of the indexing cylinder support, a fifteenth screw is provided in the indexing cylinder body and is mounted on the indexing cylinder support through the fifteenth screw, a guide hole is provided in the indexing cylinder support, a guide shaft is provided in the guide hole, a push plate is provided at one end of the piston rod of the indexing cylinder body and the guide shaft, a push plate is provided on the push plate and connected to the seventh screw and is mounted on the base plate through the fifteenth screw Seven screws are installed on the piston rod and guide shaft of the indexing cylinder, a fifth screw is arranged on the push plate, and a connecting block is installed through the fifth screw, a pin shaft is installed in the connecting block, a push rod is hinged on the pin shaft, a connecting shaft is installed on the inner wall of the push rod, an open retaining ring is installed on the push rod, sixth screws are arranged on both sides of the push plate, and a connecting plate is installed through the sixth screw, small holes are opened on the surfaces of the connecting shaft and the connecting plate, tension springs are installed in the two small holes, a fourth screw is arranged on the surface of the push plate, and an elastic paddle is installed through the fourth screw.

[0007] Preferably, a ninth screw is provided on the base plate, and an adjustment support is installed through the ninth screw, and an adjustment screw and a hexagonal nut are installed on the adjustment support. Through the above components, the extension of the indexing cylinder body can be limited by the adjustment screw, and the adjustment screw is controlled on the adjustment support through the hexagonal nut, so that the indexing angle can be adjusted.

[0008] Preferably, the latch device includes an eleventh screw arranged on the bottom plate, and a guide seat body is installed through the eleventh screw, a fourteenth screw is arranged in the guide seat body, and a latch cylinder is installed through the fourteenth screw, a thirteenth screw is arranged in the guide seat body, and a side baffle is installed through the thirteenth screw, a tenth screw is arranged on the top surface of the guide seat body, and a latch guide seat is installed through the tenth screw, a driving wedge is installed on the piston end of the latch cylinder, a driven wedge is arranged in the guide seat body, a second transfer rod is fixed to the bottom plate, the second transfer rod passes through the driven wedge, a second spring is arranged between the second transfer rod and the driving wedge, and the driven A first screw plug is installed at the top of the wedge block, a first transfer rod is installed on the surface of the first screw plug, a guide hole is arranged in the pin guide seat, a pin body is arranged in the guide hole, the first transfer rod passes through the pin body, a second screw plug is installed at one end of the pin body, a first spring is arranged between the second screw plug and the first transfer rod, a top screw is arranged in the guide seat body, through the above components, the pin cylinder drives the driving wedge block to move forward under the action of compressed air, so that the driven wedge block moves vertically upward, and then drives the first transfer rod to compress the first spring upward, and finally the first spring pushes the pin body into the positioning bushing under the action of the spring force, thereby ensuring the positioning accuracy of the indexing.

[0009] Preferably, a plurality of threaded holes are evenly arranged on the top surface of the workbench, so that other parts can be installed.

[0010] Preferably, a first screw is provided on the bottom plate, and a handle is installed through the first screw. Through the above components, since the weight of the overall structure is not large, the operator can carry it through the handle.

[0011] Preferably, a second screw is provided on the workbench, and a top baffle is installed via the second screw.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are: This solution can realize functions such as indexing, latching, and locking. The driving devices of various parts are all cylinders, and the power source is compressed air. At the same time, each action is provided with a sensor, which can provide signal feedback, thereby realizing the automation requirements of the entire rapid indexing mechanism. The rapid indexing mechanism has the characteristics of simple structure, low price, fast response speed, high indexing accuracy, strong adaptability, good stability, high degree of automation, etc., and can be widely used in automated production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a rapid indexing mechanism proposed by the present invention; Figure 2 A schematic side view of the structure of a rapid indexing mechanism proposed by the present invention; Figure 3 A schematic diagram of a front view of a rapid indexing mechanism proposed by the present invention; Figure 4 A schematic diagram of the structure of a partial indexing device of a rapid indexing mechanism proposed by the present invention; Figure 5 A schematic diagram of the structure of a latch device of a rapid indexing mechanism proposed by the present invention; Figure 6 A top view of the present invention; Figure 7 A fast indexing mechanism proposed by the present invention Figure 6 AA cross-sectional diagram of ; Figure 8 A fast indexing mechanism proposed by the present invention Figure 6 BB cross-sectional diagram; Fig. 9 A fast indexing mechanism proposed by the present invention Figure 6 Schematic diagram of CC cross section; Fig.10 A fast indexing mechanism proposed by the present invention Figure 3 DD cross-sectional diagram; Fig.11 A fast indexing mechanism proposed by the present invention Figure 3 EE cross-sectional diagram of ; Fig.12 A schematic diagram of the structure of a rapid indexing mechanism during the indexing process proposed by the present invention; Fig.13 This is a front view of the initial indexing state of a rapid indexing mechanism proposed by the present invention; Fig.14 The present invention is a schematic diagram of an expansion sleeve structure of a rapid indexing mechanism proposed by the present invention.

[0014] Legend: 1. Workbench; 2. Fixed seat; 3. Bottom plate; 4. Bearing end cover; 5. Indexing cylinder body; 6. Shifter block; 7. Indexing cylinder support; 8. Push plate; 9. Guide shaft; 10. Connecting block; 11. Push rod; 12. Pin shaft; 13. Connecting plate; 14. Connecting shaft; 15. Adjusting support; 16. Elastic shifter; 17. Adjusting screw; 18. Guide seat body; 19. Driving wedge block; 20. Pin cylinder; 21. Driven wedge block; 22. Pin guide seat; 23. Pin body; 24. First transfer rod; 25. First screw plug; 26. Second transfer rod; 27. Second screw plug; 28. Expansion sleeve; 29. ​​Locking cylinder; 30. Driving screw; 31. Wedge; 32. Adapter block; 33. Top baffle; 34. Side baffle; 35. Tapered roller bearing; 36. Locking nut; 37. Positioning bushing; 38. Open retaining ring; 39. Tension spring; 40. Threaded hole; 41. First spring; 42. Second spring; 43. Handle; 44. First screw; 45. Second screw; 46. Third screw; 47. Fourth screw; 48. Fifth screw; 49. Sixth screw; 50. Seventh screw; 51. Eighth screw; 52. Ninth screw; 53. Tenth screw; 54. Eleventh screw; 55. Hexagonal nut; 56. Thirteenth screw; 57. Fourteenth screw; 58. Fifteenth screw; 59. Sixteenth screw; 60. Top screw. DETAILED DESCRIPTION

[0015] See also Figure 1-Figure 14The present invention provides a technical solution: a rapid indexing mechanism, comprising a base plate 3, a fixed seat 2 and a workbench 1, wherein the fixed seat 2 is provided with an eighth screw 51 and is mounted on the base plate 3 through the eighth screw 51, the fixed seat 2 is provided with a bearing mounting hole, and two tapered roller bearings 35 are provided on the inner wall, a bearing end cover 4 is installed on the fixed seat 2, the workbench 1 is arranged above the base plate 3, a positioning shaft is provided on the lower surface of the workbench 1, the positioning shaft cooperates with the inner hole of the tapered roller bearing 35, and a locking nut 36 is provided at one end to lock the workbench 1, fifteen shifting blocks 6 are evenly arranged on the bottom surface of the workbench 1, and fifteen holes are evenly arranged on the bottom surface, and positioning bushings 37 are installed in the holes, an indexing device is provided on the surface of the base plate 3, a locking device is provided on the workbench 1, and a latch device is provided on the surface of the base plate 3.

[0016] Specifically, the locking device includes an expansion sleeve 28 arranged in the workbench 1, a tapered hole is arranged in the expansion sleeve 28, an inclined wedge 31 is fitted in the tapered hole of the expansion sleeve 28, a transfer block 32 is arranged at the top of the inclined wedge 31, a third screw 46 is arranged in the transfer block 32, and the transfer block 32 is installed on the top of the inclined wedge 31 through the third screw 46, a locking cylinder 29 is arranged on the surface of the base plate 3, a sixteenth screw 59 is arranged on the locking cylinder 29, and the transfer block 32 is installed on the base plate 3 through the sixteenth screw 59, a driving screw 30 is installed on the piston end of the locking cylinder 29, and the end of the driving screw 30 is connected to the transfer block 32.

[0017] In this embodiment: the locking cylinder 29 moves downward under the action of compressed air, so that the driving screw 30 drives the inclined wedge 31 to move downward, the expansion sleeve 28 is expanded, and the workbench 1 is tightened, thereby ensuring the stability of the workbench 1 when it is rotated to a certain angle.

[0018] Specifically, the indexing device includes an indexing cylinder support 7 located above the base plate 3, a seventh screw 50 is provided in the indexing cylinder support 7, and the indexing cylinder support 7 is installed on the base plate 3 through the seventh screw 50, an indexing cylinder body 5 is provided on one side of the indexing cylinder support 7, a fifteenth screw 58 is provided in the indexing cylinder body 5, and the indexing cylinder support 7 is installed on the indexing cylinder support 7 through the fifteenth screw 58, a guide hole is provided in the indexing cylinder support 7, a guide shaft 9 is provided in the guide hole, a push plate 8 is provided at one end of the piston rod of the indexing cylinder body 5 and the guide shaft 9, the push plate 8 is provided with the seventh screw 50, and the seventh screw 50 is installed on the indexing cylinder body 5 through the seventh screw 58. A fifth screw 48 is provided on the piston rod and guide shaft 9 of the cylinder, and a connecting block 10 is installed through the fifth screw 48. A pin shaft 12 is installed in the connecting block 10, and a push rod 11 is hinged on the pin shaft 12. A connecting shaft 14 is installed on the inner wall of the push rod 11, and an open retaining ring 38 is installed on the push rod 11. Sixth screws 49 are provided on both sides of the push plate 8, and a connecting plate 13 is installed through the sixth screws 49. Small holes are opened on the surfaces of the connecting shaft 14 and the connecting plate 13, and tension springs 39 are installed in the two small holes. A fourth screw 47 is provided on the surface of the push plate 8, and an elastic paddle 16 is installed through the fourth screw 47.

[0019] Specifically, a ninth screw 52 is provided on the bottom plate 3 , and the adjustment support 15 is installed through the ninth screw 52 , and the adjustment screw rod 17 and the hexagonal nut 55 are installed on the adjustment support 15 .

[0020] In this embodiment: the extension of the indexing cylinder body 5 can be limited by adjusting the screw rod 17, and the adjusting screw rod 17 can be controlled on the adjusting support 15 by the hexagonal nut 55, so that the indexing angle can be adjusted.

[0021] Specifically, the latch device includes an eleventh screw 54 disposed on the bottom plate 3, and the guide seat body 18 is installed through the eleventh screw 54, a fourteenth screw 57 is disposed in the guide seat body 18, and the latch cylinder 20 is installed through the fourteenth screw 57, a thirteenth screw 56 is disposed in the guide seat body 18, and the side baffle 34 is installed through the thirteenth screw 56, a tenth screw 53 is disposed on the top surface of the guide seat body 18, and the latch guide seat 22 is installed through the tenth screw 53, a driving wedge 19 is installed on the piston end of the latch cylinder 20, and a driven wedge 2 is disposed in the guide seat body 18 1, a second transfer rod 26 is fixed on the bottom plate 3, the second transfer rod 26 passes through the driven wedge 21, a second spring 42 is arranged between the second transfer rod 26 and the driving wedge 19, a first screw plug 25 is installed on the top of the driven wedge 21, a first transfer rod 24 is installed on the surface of the first screw plug 25, a guide hole is arranged in the latch guide seat 22, a latch body 23 is arranged in the guide hole, the first transfer rod 24 passes through the latch body 23, a second screw plug 27 is arranged at one end of the latch body 23, a first spring 41 is arranged between the second screw and the first transfer rod 24, and a top screw 60 is arranged in the guide seat body 18.

[0022] In this embodiment: the latch cylinder 20 drives the driving wedge 19 to move forward under the action of compressed air, thereby causing the driven wedge 21 to move vertically upward, and then drives the first transfer rod 24 to compress the first spring 41 upward, and finally the first spring 41 pushes the latch body 23 into the positioning bushing 37 under the action of the spring force, thereby ensuring the positioning accuracy of the indexing.

[0023] Specifically, a plurality of threaded holes 40 are evenly arranged on the top surface of the workbench 1 .

[0024] In this embodiment, multiple threaded holes 40 can be used to install other parts.

[0025] Specifically, a first screw 44 is provided on the bottom plate 3, and a handle 43 is installed through the first screw 44. In this embodiment, since the weight of the overall structure is not large, the operator can carry it by the handle 43 .

[0026] Preferably, a second screw 45 is provided on the workbench 1 , and a top baffle 33 is installed via the second screw 45 .

[0027] Working principle: This time the indexing angle is introduced as 24°. Fifteen shift blocks 6 are evenly arranged on the bottom surface of the workbench 1. At the same time, fifteen holes are evenly arranged on the bottom surface. Positioning bushings 37 are installed in the holes for latch indexing. In the initial state, the top of the front end of the push rod 11 contacts the rear side of the shift block 6, and the elastic shift piece 16 contacts the inclined surface of the front end of the shift block 6. The indexing cylinder body 5 moves forward under the action of compressed air, so that the push rod 11 pushes the shift block 6 to rotate, and then the workbench 1 rotates. Due to the effect of inertia, the workbench 1 is prevented from continuing to move forward after it is turned to the angle, resulting in inaccurate indexing. Therefore, an elastic shift piece 16 is designed. During the indexing process, the elastic shift piece 16 and the push rod 11 clamp the shift block 6 in unison, which can ensure that it is rotated to the specified angle. After the angle is rotated to the right position, the automatic latch part is actuated, and the latch body 23 enters the positioning hole of the positioning bushing 37, thereby ensuring the accuracy of the indexing. Position accuracy, and then the locking part moves to lock the entire workbench 1. The locking cylinder 29 moves downward under the action of compressed air, so that the driving screw 30 drives the inclined wedge 31 to move downward, the expansion sleeve 28 is expanded, and the workbench 1 is tightened, thereby ensuring the stability of the workbench 1 when it is rotated to a certain angle, and then mechanical processing and other operations are performed. After completion, the next indexing action is performed. First, the indexing cylinder body 5 retracts, the elastic paddle 16 will open, disengage from the current paddle block 6, and the push rod 11 continues to retract. When the top of the push rod 11 contacts the inclined surface on the paddle block 6 at the rear end, the push rod 11 will rotate to the right along the pin shaft 12, thereby avoiding the paddle block 6 here and returning to the initial position. Then the locking part is unlocked, the pin body 23 retracts, and indexing is performed again. The above steps are repeated to achieve overall automatic and rapid indexing. Each action will be designed with a sensor to ensure the automation requirements of the entire mechanism.

Claims

1. A rapid indexing mechanism, comprising a base plate (3), a fixed seat (2) and a workbench (1), characterized in that: The fixing seat (2) is provided with an eighth screw (51) and is mounted on the base plate (3) by means of the eighth screw (51). The fixing seat (2) is provided with a bearing mounting hole and two tapered roller bearings (35) are provided on the inner wall. The fixing seat (2) is provided with a bearing end cover (4). The workbench (1) is arranged above the base plate (3). A positioning shaft is provided on the lower surface of the workbench (1). The positioning shaft cooperates with the inner hole of the tapered roller bearing (35) and a locking nut (36) is provided at one end to lock the workbench (1). Fifteen shifting blocks (6) are evenly arranged on the bottom surface of the workbench (1). Fifteen holes are evenly arranged on the bottom surface, and positioning bushings (37) are installed in the holes. A dividing device is provided on the surface of the base plate (3). A locking device is provided on the workbench (1). A latch device is provided on the surface of the base plate (3).

2. A rapid indexing mechanism according to claim 1, characterized in that: The locking device comprises an expansion sleeve (28) arranged in the workbench (1), the expansion sleeve (28) being provided with a tapered hole, an inclined wedge (31) being fitted in the tapered hole of the expansion sleeve (28), a transfer block (32) being provided at the top end of the inclined wedge (31), a third screw (46) being provided in the transfer block (32), and being mounted on the top end of the inclined wedge (31) via the third screw (46), a locking cylinder (29) being provided on the surface of the base plate (3), a sixteenth screw (59) being provided on the locking cylinder (29), and being mounted on the base plate (3) via the sixteenth screw (59), a driving screw (30) being installed at the piston end of the locking cylinder (29), and the end of the driving screw (30) being connected to the transfer block (32).

3. A rapid indexing mechanism according to claim 1, characterized in that: The indexing device comprises an indexing cylinder support (7) located above the base plate (3), the indexing cylinder support (7) being provided with a seventh screw (50) and being mounted on the base plate (3) via the seventh screw (50), an indexing cylinder body (5) being provided on one side of the indexing cylinder support (7), the indexing cylinder body (5) being provided with a fifteenth screw (58) and being mounted on the indexing cylinder support (7) via the fifteenth screw (58), a guide hole being provided in the indexing cylinder support (7), a guide shaft (9) being provided in the guide hole, a push plate (8) being provided at one end of the piston rod of the indexing cylinder body (5) and the guide shaft (9), the push plate (8) being provided with the seventh screw (50) and being mounted on the piston rod of the indexing cylinder via the seventh screw (50) and the guide shaft (9). On the guide shaft (9), a fifth screw (48) is provided on the push plate (8), and a connecting block (10) is installed through the fifth screw (48), a pin shaft (12) is installed in the connecting block (10), a push rod (11) is hinged on the pin shaft (12), a connecting shaft (14) is installed on the inner wall of the push rod (11), an open retaining ring (38) is installed on the push rod (11), sixth screws (49) are provided on both sides of the push plate (8), and a connecting plate (13) is installed through the sixth screws (49), small holes are opened on the surfaces of the connecting shaft (14) and the connecting plate (13), tension springs (39) are installed in the two small holes, a fourth screw (47) is provided on the surface of the push plate (8), and an elastic pick (16) is installed through the fourth screw (47).

4. A rapid indexing mechanism according to claim 1, characterized in that: A ninth screw (52) is provided on the bottom plate (3), and an adjustment support (15) is mounted via the ninth screw (52); an adjustment screw rod (17) and a hexagonal nut (55) are mounted on the adjustment support (15).

5. A rapid indexing mechanism according to claim 1, characterized in that: The latch device comprises an eleventh screw (54) arranged on the bottom plate (3), and a guide seat (18) is installed via the eleventh screw (54); a fourteenth screw (57) is arranged in the guide seat (18), and a latch cylinder (20) is installed via the fourteenth screw (57); a thirteenth screw (56) is arranged in the guide seat (18), and a side baffle (34) is installed via the thirteenth screw (56); a tenth screw (53) is arranged on the top surface of the guide seat (18), and a latch guide seat (22) is installed via the tenth screw (53); a driving wedge (19) is installed at the piston end of the latch cylinder (20), a driven wedge (21) is arranged in the guide seat (18), and the bottom plate (3 ) is fixed with a second transfer rod (26), the second transfer rod (26) passes through the driven wedge (21), a second spring (42) is arranged between the second transfer rod (26) and the driving wedge (19), a first screw plug (25) is installed at the top end of the driven wedge (21), a first transfer rod (24) is installed on the surface of the first screw plug (25), a guide hole is arranged in the latch guide seat (22), a latch body (23) is arranged in the guide hole, the first transfer rod (24) passes through the latch body (23), a second screw plug (27) is installed at one end of the latch body (23), a first spring (41) is arranged between the second screw plug and the first transfer rod (24), and a top screw (60) is arranged in the guide seat body (18).

6. A rapid indexing mechanism according to claim 1, characterized in that: A plurality of threaded holes (40) are evenly arranged on the top surface of the workbench (1).

7. A rapid indexing mechanism according to claim 1, characterized in that: A first screw (44) is provided on the bottom plate (3), and a handle (43) is installed via the first screw (44).

8. A rapid indexing mechanism according to claim 1, characterized in that: The workbench (1) is provided with a second screw (45), and a top baffle (33) is mounted via the second screw (45).

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