Locking drive structure

Abstract

The utility model provides a locking drive structure, include: drive mechanism and locking mechanism, drive mechanism includes slide, drive shaft and drive gear disc, is provided with drive shaft seat on the slide, the one end of drive shaft passes through drive bearing and is connected with drive gear disc fixedly, is arranged with drive top cover to the one end of drive shaft near drive gear disc, locking mechanism includes locking shaft, carousel, locking gear disc and the locking shaft seat of arrangement on carousel, the one end of locking shaft penetrates locking bearing and is connected with locking gear disc fixedly, locking gear disc cooperations with drive gear disc, along the axial direction of locking shaft from locking gear disc to locking shaft in proper order sets up gland, outer friction piece, inner friction piece, locking top cover, spring seat, arranges a plurality of springs between locking top cover and spring seat. The utility model discloses through the cooperation of drive mechanism and locking mechanism, in multi -station carousel device effectively realize in the same time part station can rotate, part station can not rotate's function, and, simple structure, easily realizes.

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] In multi-station turntable mechanisms of welding machines that produce metal welding wire spools, 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 cross rib loading station, the turntable rotates to its position, and the pallet rotates a certain angle for each spoke or cross 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 problems such as high power consumption, large size, and complex structure, and it is not possible to 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: a locking drive structure is provided, including: a drive mechanism and a locking mechanism;

[0005] The drive mechanism includes a slide plate, a drive shaft, and a drive gear. 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 is fixedly connected to the drive gear. A drive top cover is provided at the end of the drive shaft near the drive gear. The drive top cover is provided with a groove, and the drive gear is arranged in the groove of the drive top cover.

[0006] The locking mechanism includes a locking shaft, a turntable, a locking gear disc, and a locking shaft seat arranged on the turntable. A locking bearing is installed inside the locking shaft seat. One end of the locking shaft passes through the locking bearing and is fixedly connected to the locking gear disc. The locking gear disc cooperates with the drive gear disc. Along the axial direction of the locking shaft, from the locking gear disc to the locking shaft, a pressure cover, an outer friction plate, an inner friction plate, a locking top cover, and a spring seat are sequentially fitted. Multiple springs are arranged between the locking top cover and the spring seat. One end of each spring contacts the locking top cover, and the other end of each spring contacts the spring seat. The pressure cover and the outer friction plate are fixedly connected. The outer friction plate is fixedly connected to the locking shaft seat. The locking gear disc, the inner friction plate, and the spring seat are connected into a rigid body by screws.

[0007] In one specific embodiment, the outer friction plate has an internal tooth structure, and the inner friction plate has an external tooth structure. The teeth of the outer friction plate cooperate with the teeth of the inner friction plate. When the locking mechanism is in the locked state, the outer friction plate and the inner friction plate are pressed tightly together. When the locking mechanism is in the unlocked state, the teeth of the inner friction plate disengage from the teeth of the outer friction plate.

[0008] In one specific embodiment, both the outer friction plate and the inner friction plate are made of elastic steel sheets with a thickness of 0.2 mm.

[0009] In one specific embodiment, the spring seat has multiple holes on the side near the locking top cover, and the locking top cover has multiple holes on the side near the spring seat. One end of each spring is arranged in the corresponding hole of the spring seat, and the other end of each spring is arranged in the corresponding hole of the locking top cover. A top block is provided on the side of the locking top cover near the pressure cover, and the top block cooperates with the driving top cover.

[0010] In one specific embodiment, both the locking gear disk and the driving gear disk are provided with locking teeth, and the locking gear disk and the driving gear disk are connected by the meshing of the locking teeth.

[0011] In one specific embodiment, the skateboard is connected to a power mechanism A.

[0012] In one specific embodiment, the end of the drive shaft away from the drive gear is connected to a power mechanism B.

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

[0014] 1. This utility model, through the cooperation of a locking mechanism and a driving mechanism, enables a multi-station turntable mechanism to achieve the following: when a station needs to rotate by a specified angle to complete different steps of a process, the driving mechanism unlocks the locking mechanism and drives the tray of that station to rotate, thus completing the different steps of the process at that station. When the station itself does not need to rotate, the driving mechanism disengages from the locking mechanism, the locking mechanism locks, and the tray of the 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.

[0015] 2. Under the action of the driving mechanism, this utility model achieves locking and unlocking of the locking mechanism through the cooperation of the outer friction plate, inner friction plate, locking top cover, spring, and spring seat. Its structure is simple and easy to implement. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the present invention (the axis of the tray rotation shaft coincides with the axis of the drive shaft of the drive mechanism, and the locking mechanism is in a locked state).

[0017] Figure 2This is a cross-sectional view of the present invention (the locking mechanism is in the unlocked state).

[0018] Figure 3 This is a schematic diagram of the locking top cover of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the external friction plate of this utility model.

[0020] Figure 5 This is a schematic diagram of the internal friction plate of this utility model.

[0021] Reference numerals: 1. Drive shaft seat; 2. Slide plate; 3. Drive bearing; 4. Drive shaft; 5. Drive top cover; 6. Drive gear plate; 7. Locking gear plate; 8. Pressure cover; 9. Outer friction plate; 10. Inner friction plate; 11. Locking top cover; 12. Spring seat; 13. Turntable; 14. Locking shaft seat; 15. Locking bearing; 16. Locking shaft; 17. Top block; 18. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a locking drive structure, comprising: a drive mechanism and a locking mechanism;

[0024] The driving mechanism includes a slide plate 2, a drive shaft 4, and a drive gear 6. Specifically, the slide plate 2 is connected to a power mechanism A. Under the drive of the power mechanism A, the slide plate 2 can move along the axial direction of the drive shaft 4. A drive shaft seat 1 is provided on the slide plate 2, and a drive bearing 3 is provided inside the drive shaft seat 1. One end of the drive shaft 4 passes through the drive bearing 3 and is fixedly connected to the drive gear 6. A drive top cover 5 is arranged at the end of the drive shaft 4 near the drive gear 6. The drive top cover 5 is provided with a groove, and the drive gear 6 is arranged in the groove of the drive top cover 5. Specifically, the end of the drive shaft 4 away from the drive gear 6 is connected to a power mechanism B. Preferably, the power mechanism B is a motor. The power mechanism B drives the drive shaft 4 to rotate, thereby driving the drive gear 6 and the drive top cover 5 to rotate.

[0025] The locking mechanism includes a locking shaft 17, a turntable 14, a locking gear disc, and a locking shaft seat 15 arranged on the turntable 14. A locking bearing 16 is provided inside the locking shaft seat 15. Specifically, both the locking gear disc and the drive gear disc 6 are provided with locking teeth, and the locking gear disc and the drive gear disc 6 are connected by the meshing of the locking teeth. One end of the locking shaft 17 passes through the locking bearing 16 and is fixedly connected to the locking gear disc. The other end of the locking shaft 17 is connected to the tray. The locking gear disc cooperates with the drive gear disc 6. Along the axial direction of the locking shaft 17, a pressure cover 8 and an outer friction plate 9 are sequentially sleeved from the locking gear disc to the locking shaft 17. The structure includes an internal friction plate, a locking top cover 11, and a spring seat 13. Multiple springs 12 are arranged between the locking top cover 11 and the spring seat 13. One end of each spring 12 contacts the locking top cover 11, and the other end of each spring 12 contacts the spring seat 13. Specifically, the spring seat 13 has multiple holes on the side near the locking top cover 11, and the locking top cover 11 has multiple holes on the side near the spring seat 13. One end of each spring 12 is arranged in a corresponding hole in the spring seat 13, and the other end of each spring 12 is arranged in a corresponding hole in the locking top cover 11. The structure of the locking top cover 11 is shown in the reference diagram. Figure 3 A top block 18 is provided on the side of the locking top cover 11 near the pressure cover 8. The top block 18 cooperates with the driving top cover 5. The pressure cover 8 and the outer friction plate 9 are fixedly connected. The outer friction plate 9 is fixedly connected with the locking shaft seat 15. The locking gear plate, the inner friction plate 10 and the spring seat 13 are connected into a rigid body by screws.

[0026] Under the action of the spring, the outer friction plate 9 and the inner friction plate 10 are pressed together and locked in rotation. Since the outer friction plate 9 is fixed on the locking shaft seat 15, the locking shaft 17 is locked.

[0027] refer to Figure 4 and Figure 5 Preferably, the outer friction plate 9 has an internal tooth structure and the inner friction plate 10 has an external tooth structure. The teeth of the outer friction plate 10 cooperate with the teeth of the inner friction plate 9. When the locking mechanism is in the locked state, the outer friction plate 9 and the inner friction plate 10 are pressed tightly together. When the locking mechanism is in the unlocked state, the teeth of the inner friction plate 10 disengage from the teeth of the outer friction plate 9.

[0028] Preferably, both the outer friction plate 9 and the inner friction plate 10 are made of elastic steel sheets with a thickness of 0.2 mm.

[0029] The locking mechanism is initially locked. When the turntable 14 rotates to a station that needs to be rotated, the locking shaft 17 of this station coincides with the axis of the drive shaft 4 of the drive mechanism. Under the action of the power mechanism A, the slide plate 2 moves along the axis of the drive shaft 4, the drive top cover 5 moves towards the corresponding locking top cover 11, and the drive gear 6 moves towards the corresponding locking gear. The drive top cover 5 contacts and pushes the corresponding locking top cover 11, causing the corresponding outer friction plate 9 and inner friction plate 10 to disengage. The corresponding locking mechanism is in the unlocked state. At the same time, the drive gear 6 continues to move towards the corresponding locking gear until the locking teeth of the drive gear 6 and the locking teeth of the corresponding locking gear are engaged. The two are self-locking and can transmit torque. At this time, the drive shaft 4 and the corresponding locking shaft 17 form a rigid rotating body. Under the action of the power mechanism B, the drive shaft 4 and the corresponding locking shaft 17 rotate and rotate the corresponding station, completing the positioning of different steps in the corresponding station.

[0030] When all the work at this station is completed, under the action of the power mechanism A, the drive top cover 5 and the drive gear plate 6 move away from the corresponding locking mechanism, so that the drive top cover 5 and the drive gear plate 6 disengage from the corresponding locking top cover 11 and the corresponding locking gear plate respectively. Under the action of the spring 12, the outer friction plate 9 and the inner friction plate 10 of the corresponding locking mechanism cooperate to self-lock, the rotational freedom of the corresponding locking shaft 17 is locked, the locking mechanism returns to the locked state, and the turntable 14 can rotate so that the locking shaft 17 of the locking mechanism of the next station coincides with the axis of the drive shaft 4.

[0031] Multiple locking mechanisms and multiple driving mechanisms can be arranged on the turntable 14. The number of driving mechanisms is less than the number of locking mechanisms. Two driving mechanisms and four locking mechanisms 3 are arranged. At the same time, the two locking mechanisms 3 on the turntable 14 are aligned with the two driving mechanisms 2. This can form an application where only two of the four workstations (pallets) of the turntable 14 need to rotate.

[0032] 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, include: Drive mechanism and locking mechanism; The drive mechanism includes a slide plate, a drive shaft, and a drive gear. 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 is fixedly connected to the drive gear. A drive top cover is provided at the end of the drive shaft near the drive gear. The drive top cover is provided with a groove, and the drive gear is arranged in the groove of the drive top cover. The locking mechanism includes a locking shaft, a turntable, a locking gear disc, and a locking shaft seat arranged on the turntable. A locking bearing is installed inside the locking shaft seat. One end of the locking shaft passes through the locking bearing and is fixedly connected to the locking gear disc. The locking gear disc cooperates with the drive gear disc. Along the axial direction of the locking shaft, from the locking gear disc to the locking shaft, a pressure cover, an outer friction plate, an inner friction plate, a locking top cover, and a spring seat are sequentially fitted. Multiple springs are arranged between the locking top cover and the spring seat. One end of each spring contacts the locking top cover, and the other end of each spring contacts the spring seat. The pressure cover and the outer friction plate are fixedly connected. The outer friction plate is fixedly connected to the locking shaft seat. The locking gear disc, the inner friction plate, and the spring seat are connected into a rigid body by screws.

2. The locking drive structure according to claim 1, characterized in that, The outer friction plate has an internal tooth structure, and the inner friction plate has an external tooth structure. The teeth of the outer friction plate cooperate with the teeth of the inner friction plate. When the locking mechanism is in the locked state, the outer friction plate and the inner friction plate are pressed tightly together. When the locking mechanism is in the unlocked state, the teeth of the inner friction plate disengage from the teeth of the outer friction plate.

3. The locking drive structure according to claim 2, characterized in that, Both the outer friction plate and the inner friction plate are made of elastic steel sheets with a thickness of 0.2 mm.

4. The locking drive structure according to claim 3, characterized in that, The spring seat has multiple holes on the side near the locking top cover, and the locking top cover has multiple holes on the side near the spring seat. One end of each spring is arranged in the corresponding hole of the spring seat, and the other end of each spring is arranged in the corresponding hole of the locking top cover. A top block is provided on the side of the locking top cover near the pressure cover, and the top block cooperates with the driving top cover.

5. The locking drive structure according to claim 4, characterized in that, Both the locking gear plate and the driving gear plate are provided with locking teeth, and the locking gear plate and the driving gear plate are connected by the meshing of the locking teeth.

6. The locking drive structure according to claim 5, characterized in that, The skateboard is connected to a power mechanism A.

7. The locking drive structure according to claim 6, characterized in that, The end of the drive shaft away from the drive gear is connected to the power mechanism B.

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