Locking driving structure

Abstract

The utility model provides a locking driving structure. The locking driving structure comprises a driving mechanism, a locking mechanism and a turntable, the driving mechanism is provided with a sliding plate, a driving shaft and a top cover, a driving shaft seat is arranged on the sliding plate, a driving bearing is arranged in the driving shaft seat, and one end of the driving shaft penetrates through the driving bearing and then is sequentially provided with a thrust bearing, a top cover bearing and a driving tip cone; the locking mechanism comprises a tray rotating shaft and a tray shaft seat, a tray bearing is arranged in the tray shaft seat, one end of the tray rotating shaft penetrates through the tray bearing and then is fixedly connected with an inner taper sleeve, the inner taper sleeve is sleeved with a middle taper sleeve, the middle taper sleeve is sleeved with an outer taper sleeve, and the outer taper sleeve is fixedly connected with the rotating disc through the tray shaft seat. And an elastic component is arranged between the middle taper sleeve and the outer gland. According to the multi-station turntable device, the driving mechanism is matched with the locking mechanism, so that the function that a part of stations can rotate and a part of stations cannot rotate at the same time is effectively realized in the multi-station turntable device.

Description

Technical Field

[0001] This utility model relates to the field of power drive technology for welding wire production and packaging, specifically a locking drive structure. Background Technology

[0002] The structure of the finished welding wire packaging metal welding wire spool with a central hole is formed by bending and welding 4mm steel wire to create a skeleton disc structure. First, the outer ring, inner ring, and spokes are welded together to form a side ring assembly. Then, two side ring assemblies and 12 transverse ribs are welded together to form a complete metal welding wire spool. In the multi-station turntable mechanism of the welding machine used to manufacture the metal welding wire spool, there are situations where some stations do not need to rotate while others do. For example, at the unloading station, the turntable rotates to its position, and the gripper mechanism directly grabs the metal welding wire spool; the station itself does not need to rotate. At the spoke or transverse rib loading station, the turntable rotates to its position, and the tray rotates a certain angle for each spoke or transverse rib loaded. Multi-station turntable mechanisms are usually designed so that all stations are connected to a single transmission chain, driven by a motor or other power source to rotate together. In this case, the transmission and drive systems suffer from high power consumption, large size, and complex structure, and cannot achieve a situation where some stations can rotate while others cannot at the same time. Utility Model Content

[0003] This invention addresses the technical problem that multi-station turntable mechanisms for manufacturing metal welding wire spools cannot achieve simultaneous rotation of some stations while others cannot, by proposing a locking drive structure.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] This utility model first provides a locking drive structure, including a drive mechanism, a locking mechanism and a turntable;

[0006] The drive mechanism is provided with a slide plate, a drive shaft and a top cover. A drive shaft seat is provided on the slide plate, and a drive bearing is provided inside the drive shaft seat. One end of the drive shaft passes through the drive bearing and then a thrust bearing, a top cover bearing and a drive cone are arranged in sequence. The drive cone is fixedly connected to the end of the drive shaft. The two ends of the top cover are respectively fitted on the outer ring of the thrust bearing and the outer ring of the top cover bearing.

[0007] The locking mechanism includes a tray shaft and a tray shaft seat arranged on the tray turntable. A tray bearing is installed inside the tray shaft seat. An inner pressure cap is installed on the inner ring of the tray bearing. One end of the tray shaft passes through the tray bearing and is fixedly connected to an inner tapered sleeve. The taper of the tapered hole of the inner tapered sleeve is consistent with the taper of the driving top cone. A middle tapered sleeve is installed outside the inner tapered sleeve, and an outer tapered sleeve is installed outside the middle tapered sleeve. The outer tapered sleeve is fixedly connected to the turntable through the tray shaft seat. An outer pressure cap is installed on the outer ring of the tray bearing. The end face of the outer tapered sleeve contacts the end face of the outer pressure cap. An elastic component is installed between the middle tapered sleeve and the outer pressure cap. The end face of the inner tapered sleeve contacts the end face of the inner pressure cap.

[0008] Preferably, the diameter of the conical hole of the inner conical sleeve decreases from the end furthest from the tray bearing to the end closest to the tray bearing, the diameter of the conical hole of the middle conical sleeve decreases from the end furthest from the tray bearing to the end closest to the tray bearing, and the diameter of the conical hole of the outer conical sleeve increases from the end furthest from the tray bearing to the end closest to the tray bearing.

[0009] Preferably, the driving top cone and the inner cone sleeve, the inner cone sleeve and the middle cone sleeve, and the middle cone sleeve and the outer cone sleeve are all engaged by tooth meshing.

[0010] Preferably, the end of the drive shaft away from the drive cone is connected to a power mechanism A.

[0011] Preferably, the skateboard is connected to a power mechanism B.

[0012] Preferably, the elastic component is a spring.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention, through the cooperation of a locking mechanism and a driving mechanism, enables a multi-station turntable mechanism to unlock the corresponding locking mechanism and drive the tray of the corresponding station to rotate when the station itself needs to rotate by a specified angle to complete different steps of the process. When the station itself does not need to rotate, the driving mechanism does not unlock the locking mechanism, and the tray of the corresponding station is locked. This effectively achieves the function that some stations can rotate to complete different steps of the corresponding process at the same time, while some stations cannot rotate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention (which includes four locking mechanisms and two driving mechanisms).

[0016] Figure 2 This is a cross-sectional view of the present invention (the axis of the tray shaft coincides with the axis of the drive shaft of the drive mechanism, and the locking mechanism is in a locked state).

[0017] Figure 3This is a cross-sectional view of the present invention (the locking mechanism is in the unlocked state).

[0018] Reference numerals: 1. Slide plate; 2. Drive mechanism; 3. Locking mechanism; 4. Turntable; 21. Drive shaft; 22. Drive bearing; 23. Drive shaft seat; 24. Thrust bearing; 25. Top cover; 26. Top cover bearing; 27. Drive top cone; 31. Outer cone sleeve; 32. Middle cone sleeve; 33. Inner cone sleeve; 34. Spring; 35. Outer pressure cover; 36. Inner pressure cover; 37. Pallet shaft seat; 38. Pallet bearing; 39. Pallet rotating shaft. Detailed Implementation

[0019] The present invention will be described in detail below with reference to the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0020] Please see Figure 1-3 This utility model provides a technical solution: a locking drive structure, including a drive mechanism 2, a locking mechanism 3 and a turntable 4, the turntable 4 being rotatable;

[0021] The drive mechanism includes a slide plate 1, a drive shaft 21, and a top cover 25. Preferably, the slide plate 1 is connected to a power mechanism B. The slide plate 1 can move along the axis of the drive shaft 21 under the drive of the power mechanism B. The slide plate 1 is provided with a drive shaft seat 23, and a drive bearing 22 is provided inside the drive shaft seat 23. One end of the drive shaft 21 passes through the drive bearing 22 and then a thrust bearing 24, a top cover bearing 26, and a drive top cone 27 are arranged in sequence. The drive top cone 27 is fixedly connected to the end of the drive shaft 21. The end of the drive shaft 21 away from the drive top cone 27 is connected to a power mechanism A. Preferably, the power mechanism A is a motor. The two ends of the top cover 25 are respectively sleeved on the outer ring of the thrust bearing 24 and the outer ring of the top cover bearing 26. The top cover 25 can rotate and can withstand axial loads.

[0022] The locking mechanism 3 includes a tray shaft 39 and a tray shaft seat 37 arranged on the turntable 4. A tray bearing 38 is provided inside the tray shaft seat 37. An inner pressure cap 36 is provided on the inner ring of the tray bearing 38. One end of the tray shaft 39 passes through the tray bearing 38 and is fixedly connected to an inner tapered sleeve 33. The end of the tray shaft 39 away from the inner tapered sleeve 33 is connected to the tray. The taper of the tapered hole of the inner tapered sleeve 33 is consistent with the taper of the driving top cone 27. A middle tapered sleeve 32 is sleeved on the inner tapered sleeve 33, and an outer tapered sleeve 31 is sleeved on the middle tapered sleeve 32. The outer tapered sleeve 31 is fixedly connected to the turntable 4 through the tray shaft seat 37. Preferably, the diameter of the tapered hole of the inner tapered sleeve 33 decreases from the end away from the tray bearing 38 to the end closer to the tray bearing 38, and the diameter of the tapered hole of the middle tapered sleeve 32 decreases from the end away from the tray bearing 38 to the end closer to the tray bearing 38. The diameter of one end of the outer tapered sleeve 31 decreases, while the diameter of the tapered hole increases from the end furthest from the tray bearing 38 to the end closest to the tray bearing 38. An outer pressure cap 35 is provided on the outer ring of the tray bearing 38. The end face of the outer tapered sleeve 31 contacts the end face of the outer pressure cap 35. The outer tapered sleeve 31 and the outer pressure cap 35 cooperate to fix the outer ring of the tray bearing 38. An elastic component is provided between the middle tapered sleeve 32 and the outer pressure cap 35. Preferably, the elastic component is a spring 34. The end face of the inner tapered sleeve 33 contacts the end face of the inner pressure cap 36. The inner tapered sleeve 33 and the inner pressure cap 36 cooperate to fix the inner ring of the tray bearing 38. Under the action of the spring 34, the inner and outer tapered surfaces of the middle tapered sleeve 32 are connected to and locked to rotate with the outer tapered surface of the inner tapered sleeve 33 and the inner tapered surface of the outer tapered sleeve 31, respectively. Since the outer tapered sleeve 31 is fixed on the turntable 4, the tray shaft 39 is locked.

[0023] Optionally, the driving top cone 27 is engaged with the inner cone sleeve 33, the inner cone sleeve 33 with the middle cone sleeve 32, and the middle cone sleeve 32 with the outer cone sleeve 31 through tooth meshing.

[0024] The locking mechanism 3 is initially locked. When the turntable 4 rotates to a station that needs to be rotated, the axis of the tray shaft 39 of this station coincides with the axis of the drive shaft 21 of the drive mechanism 2. Under the action of the power mechanism B, the slide plate 1 moves along the axis of the drive shaft 21, the top cover 25 moves towards the middle cone sleeve 32, and the drive top cone 27 moves towards the inner cone sleeve 33. The top cover 25 contacts the middle cone sleeve 32 and pushes the corresponding middle cone sleeve 32 to disengage the middle cone sleeve 32 from the corresponding outer cone sleeve 31 and the corresponding inner cone sleeve 33. The locking mechanism 3 is in the unlocked state. At the same time, the drive top cone 27 continues to move towards the corresponding inner cone sleeve 33 until the drive top cone 27 inserts into the inner cone sleeve 33. The two are self-locking and can transmit torque. At this time, the drive shaft 21 and the corresponding tray shaft 39 form a rigid rotating body. Under the action of the power mechanism A, the drive shaft 21 and the corresponding tray shaft 39 rotate and rotate the corresponding station, completing the positioning of different steps in the corresponding station.

[0025] When all the work at this station is completed, under the action of the power mechanism B, the top cover 25 and the drive cone 27 move away from the corresponding locking mechanism 3, so that the top cover 25 and the drive cone 27 disengage from the corresponding middle cone sleeve 32 and the corresponding inner cone sleeve 33 respectively. Under the action of the spring 34, the outer cone sleeve 31, middle cone sleeve 32 and inner cone sleeve 33 of the corresponding locking mechanism cooperate with each other to self-lock, the rotational freedom of the corresponding tray shaft 39 is locked, the locking mechanism 3 returns to the locked state, and the turntable 4 can rotate so that the tray shaft 39 of the locking mechanism 3 of the next station coincides with the axis of the drive shaft 21.

[0026] Multiple locking mechanisms 3 and multiple driving mechanisms 2 can be arranged on the turntable 4. The number of driving mechanisms 2 is less than the number of locking mechanisms 3. Multiple driving mechanisms 2 can share a single slide plate 1, such as... Figure 1 As shown, by arranging two drive mechanisms 2 and four locking mechanisms 3, and at the same time aligning the two locking mechanisms 3 on the turntable 4 with the two drive mechanisms 2, an application scenario can be formed where only two of the four workstations (pallets) of the turntable need to rotate.

[0027] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions and substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A locking drive structure, characterized in that: Includes a drive mechanism, a locking mechanism, and a turntable; The drive mechanism is provided with a slide plate, a drive shaft and a top cover. A drive shaft seat is provided on the slide plate, and a drive bearing is provided inside the drive shaft seat. One end of the drive shaft passes through the drive bearing and then a thrust bearing, a top cover bearing and a drive cone are arranged in sequence. The drive cone is fixedly connected to the end of the drive shaft. The two ends of the top cover are respectively fitted on the outer ring of the thrust bearing and the outer ring of the top cover bearing. The locking mechanism includes a tray shaft and a tray shaft seat arranged on the tray turntable. A tray bearing is installed inside the tray shaft seat. An inner pressure cap is installed on the inner ring of the tray bearing. One end of the tray shaft passes through the tray bearing and is fixedly connected to an inner tapered sleeve. The taper of the tapered hole of the inner tapered sleeve is consistent with the taper of the driving top cone. A middle tapered sleeve is installed outside the inner tapered sleeve, and an outer tapered sleeve is installed outside the middle tapered sleeve. The outer tapered sleeve is fixedly connected to the turntable through the tray shaft seat. An outer pressure cap is installed on the outer ring of the tray bearing. The end face of the outer tapered sleeve contacts the end face of the outer pressure cap. An elastic component is installed between the middle tapered sleeve and the outer pressure cap. The end face of the inner tapered sleeve contacts the end face of the inner pressure cap.

2. The locking drive structure according to claim 1, characterized in that: The diameter of the conical hole of the inner conical sleeve decreases from the end furthest from the tray bearing to the end closest to the tray bearing; the diameter of the conical hole of the middle conical sleeve decreases from the end furthest from the tray bearing to the end closest to the tray bearing; and the diameter of the conical hole of the outer conical sleeve increases from the end furthest from the tray bearing to the end closest to the tray bearing.

3. The locking drive structure according to claim 2, characterized in that: The drive cone and the inner cone sleeve, the inner cone sleeve and the middle cone sleeve, and the middle cone sleeve and the outer cone sleeve are all engaged by gear meshing.

4. The locking drive structure according to claim 3, characterized in that: The end of the drive shaft away from the drive cone is connected to a power mechanism A.

5. The locking drive structure according to claim 4, characterized in that: The skateboard is connected to a power mechanism B.

6. The locking drive structure according to claim 5, characterized in that: The elastic component is a spring.

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