Rotating disc locking mechanism

Abstract

The utility model relates to the technical field of rotating disc locking and discloses a rotating disc locking mechanism which comprises a base, a rotating platform is fixedly installed on the upper side of the base, a workbench is fixedly installed on the upper side of an output table of the rotating platform, and a sliding base is circumferentially installed on the upper side of the base. A stand column capable of moving in the radial direction of the workbench is installed on the upper side of the sliding base, a universal ball is fixedly installed at the upper end of the stand column, and the upper end of the universal ball abuts against the workbench. An adjusting ring is slidably mounted on the upper side of the base through a supporting piece, a driving mechanism used for rotating the adjusting ring is mounted on the upper side of the base, a clamping box used for clamping a stand column is fixedly mounted on the lower side of the workbench, guide wheels are rotatably mounted on the circumferential side of the stand column, grooves are evenly formed in the outer side of the circumference of the adjusting ring, and a flange is formed between every two adjacent grooves. According to the utility model, the supporting capability of the workbench is improved through the plurality of upright posts capable of translating, and meanwhile, the workbench can be quickly locked and unlocked, so that the processing or assembling efficiency is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of turntable locking technology, specifically a turntable locking mechanism. Background Technology

[0002] In industrial production, automated equipment, and various scenarios requiring precise rotation and positioning, the turntable plays a crucial role as a core component. It enables precise workpiece transport, multi-station switching, and directional operation, and is widely used in many industries such as machining and electronic assembly.

[0003] The existing turntable is mainly composed of a servo motor, a gear transmission mechanism, and a worktable. The servo motor can precisely rotate the worktable after being driven by the gear transmission mechanism to switch the work positions on the worktable. However, in practical applications, on the one hand, the traditional locking and unlocking mechanism of the turntable is often complex in structure and cumbersome in operation. For example, some turntables use mechanical pins or buckles for locking. When switching work positions, it is necessary to manually operate the pins or buckles, which is not only inefficient, but also prone to improper operation that leads to insecure locking, affecting the normal operation of the equipment and production safety.

[0004] On the other hand, the existing turntable support structure is not stable enough. When the turntable rotates, uneven load caused by the workpieces placed on the worktable can easily cause shaking and displacement, resulting in inaccurate workpiece positioning and affecting processing or assembly efficiency.

[0005] In summary, existing turntables have shortcomings in the locking and unlocking process and support stability, and cannot meet the requirements of modern industrial production for high efficiency, precision and stability. Therefore, a turntable locking mechanism is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a turntable locking mechanism that improves the support capacity of the worktable while also enabling the locking and unlocking of the worktable, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a turntable locking mechanism, including a base, a rotating platform fixedly mounted on the upper side of the base, a worktable fixedly mounted on the upper side of the output platform of the rotating platform, a sliding base circumferentially mounted on the upper side of the base, a column capable of moving radially along the worktable mounted on the upper side of the sliding base, a universal ball fixedly mounted on the upper end of the column, and the upper end of the universal ball abutting against the worktable; an adjusting ring slidably mounted on the upper side of the base via a support member, a drive mechanism for rotating the adjusting ring mounted on the upper side of the base, a card box for engaging the column fixedly mounted on the lower side of the worktable, a guide wheel rotatably mounted on the circumferential side of the column, and grooves evenly formed on the outer circumference of the adjusting ring, with a flange formed between adjacent grooves; when the adjusting ring swings counterclockwise circumferentially, the guide wheel abuts against the groove; when the adjusting ring swings clockwise circumferentially, the guide wheel abuts against the flange.

[0008] Specifically, there are 3 to 6 columns arranged in a circle, and the support is located between the columns and the rotating platform.

[0009] Specifically, the support component includes a smooth rod screw and a support rod. The lower end of the support rod is fixedly assembled with the base, and the upper end of the support rod is screwed with a smooth rod screw through an open screw hole. The adjusting ring has an arc-shaped groove for the smooth rod screw to pass through.

[0010] Furthermore, the support also includes slip rings, with each of the guide screws fitted with two slip rings, which respectively abut against the upper and lower sides of the adjusting ring.

[0011] Specifically, the sliding base includes a tension spring and a linear guide rail. The slide of the linear guide rail is fixedly assembled with the lower end of the column. One end of the tension spring is fixedly installed on the circumferential side of the column, and the other end of the tension spring is fixedly assembled with a support rod.

[0012] Specifically, the drive mechanism includes a gear, a ring-shaped toothed groove, and a geared motor. The geared motor is fixedly installed on the upper side of the base, and the gear is fixedly installed on the output end of the geared motor. The inner circumference of the adjusting ring is provided with a ring-shaped toothed groove, and the gear meshes with the ring-shaped toothed groove.

[0013] Specifically, the groove and the flange are connected by a smooth chamfer.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Stable support: Multiple columns distributed in a circle are used, which are supported by omnidirectional balls. During the rotation of the worktable, the support capacity is maintained and frictional resistance caused by relative movement between parts is effectively avoided, ensuring the smooth rotation of the worktable and solving the problem of worktable shaking and deviation caused by uneven load.

[0016] The locking and unlocking operation is simple and efficient: by reciprocating the adjustment ring through the drive mechanism, and utilizing the cooperation between the guide wheel and the groove and flange on the adjustment ring, as well as the engagement between the column and the card box, the worktable can be quickly locked and unlocked, which improves the accuracy of workpiece positioning and ensures processing or assembly efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic front view of the structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the drive mechanism of this utility model;

[0019] Figure 3 This is an enlarged schematic diagram of the structure of the support component of this utility model;

[0020] Figure 4 This is a top view showing the structure of the adjusting ring of this utility model.

[0021] In the diagram: 1. Base, 2. Support, 21. Smooth rod screw, 22. Slip ring, 23. Support rod, 3. Drive mechanism, 31. Gear, 32. Ring toothed groove, 33. Gear motor, 4. Sliding base, 41. Tension spring, 42. Linear guide rail, 5. Column, 6. Guide wheel, 7. Card box, 8. Universal ball, 9. Worktable, 10. Adjusting ring, 11. Groove, 12. Flange, 13. Rotating platform, 14. Arc groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 This utility model provides a technical solution: a turntable locking mechanism, including a base 1, a rotating platform 13 fixedly installed on the upper side of the base 1, and a worktable 9 fixedly installed on the upper side of the output platform of the rotating platform 13. Both the base 1 and the worktable 9 are disc-shaped. The base 1 can be installed at the work station by bolts to prevent movement. When the rotating platform 13 is working, it can accurately rotate the worktable 9.

[0024] A sliding base 4 is circumferentially mounted on the upper side of the base 1, and the sliding base 4 is arranged radially along the worktable 9. A column 5 that can move radially along the worktable 9 is mounted on the upper side of the sliding base 4. A universal ball 8 is fixedly mounted on the upper end of the column 5, and the upper end of the universal ball 8 abuts against the worktable 9. The column 5 can reciprocate along the radial direction of the worktable 9 on the sliding base 4 and maintain an upright posture. At the same time, the universal ball 8 contacts the worktable 9 by rolling, maintaining support capacity while avoiding frictional resistance caused by relative movement between components.

[0025] An adjusting ring 10 is slidably mounted on the upper side of the base 1 via a support member 2. The support member 2 is used to horizontally support the adjusting ring 10 and ensure that the adjusting ring 10 has the ability to swing in a circumferential direction. A drive mechanism 3 for rotating the adjusting ring 10 is mounted on the upper side of the base 1. The drive mechanism 3 can reciprocate and swing the adjusting ring 10 in a circumferential direction as needed.

[0026] Please see Figure 4 The specific structure of the adjusting ring 10 is as follows:

[0027] A card box 7 for engaging the column 5 is fixedly installed on the lower side of the workbench 9. A guide wheel 6 is rotatably mounted on the circumferential side of the column 5. Grooves 11 are evenly distributed on the outer circumference of the adjusting ring 10, with flanges 12 formed between adjacent grooves 11. Figure 4 With the direction as a reference, when the adjusting ring 10 swings counterclockwise, the guide wheel 6 abuts against the groove 11. At this time, the column 5 separates from the card box 7, and the worktable 9 can rotate and is in the released state. When the adjusting ring 10 swings clockwise, the guide wheel 6 abuts against the flange 12. At this time, the column 5 engages with the re-aligned card box 7, and the worktable 9 cannot rotate and is in the locked state.

[0028] There are 3 to 6 columns 5 arranged in a circle to ensure the support capacity for the adjusting ring 10. Correspondingly, the number of support members 2 matches the position of the columns 5, and the support members 2 are located between the columns 5 and the rotating platform 13.

[0029] Please see Figure 3 The specific structure of support member 2 is as follows:

[0030] The support component 2 includes a smooth rod screw 21 and a support rod 23. The lower end of the support rod 23 is fixedly assembled to the base 1 by welding. The upper end of the support rod 23 is screwed with the smooth rod screw 21 through a screw hole. When the smooth rod screw 21 is tightened, it is reinforced with a coated screw glue to prevent loosening during use. The adjusting ring 10 has an arc-shaped groove 14 for the smooth rod screw 21 to pass through. When the adjusting ring 10 rotates circumferentially, the arc-shaped groove 14 can slide along the smooth rod part of the smooth rod screw 21 to ensure the accuracy of the circumferential movement.

[0031] The support component 2 also includes slip rings 22. Each polished rod screw 21 is fitted with two slip rings 22, which abut against the upper and lower sides of the adjusting ring 10 respectively. The slip rings 22 are made of polyethylene, which has very good wear resistance and self-lubricating properties. This can effectively reduce the friction between the two sides of the adjusting ring 10 and the support rod 23 and polished rod screw 21, reduce mechanical wear, and improve the smoothness of relative movement.

[0032] Please see Figure 2 The specific structure of the sliding base 4 is as follows:

[0033] The sliding base 4 includes a tension spring 41 and a linear guide rail 42. The slide of the linear guide rail 42 is fixedly assembled with the lower end of the column 5. One end of the tension spring 41 is fixedly installed on the circumference of the column 5, and the other end of the tension spring 41 is fixedly assembled with the support rod 23. The tension spring 41 gives the column 5 a force to move along the linear guide rail 42 toward the rotating platform 13, thereby facilitating the reset of the column 5.

[0034] The drive mechanism 3 includes a gear 31, a ring-shaped toothed groove 32, and a reduction motor 33. The reduction motor 33 is fixedly installed on the upper side of the base 1, and the gear 31 is fixedly installed on the output end of the reduction motor 33. The inner circumference of the adjusting ring 10 is provided with a ring-shaped toothed groove 32, and the gear 31 meshes with the ring-shaped toothed groove 32. When the reduction motor 33 rotates the gear 31 clockwise and counterclockwise, the circumferential rotation of the adjusting ring 10 can be achieved after being driven by the meshing ring-shaped toothed groove 32.

[0035] In addition, the groove 11 and the flange 12 are connected by a smooth chamfer. The guide wheel 6 can rotate on the column. When the adjusting ring 10 rotates circumferentially, the guide wheel 6 can move smoothly between the groove 11 and the flange 12, and the movement is smooth.

[0036] The rotating platform 13 and the geared motor 33 are electrically connected to the external control cabinet. The control cabinet is an existing device with a structure including a controller, control panel, contactor and circuit breaker. The controller communicates with the host computer through the industrial Ethernet protocol to realize remote monitoring and data interaction, while the control panel supports local parameter setting, operation status display and fault alarm functions.

[0037] The working principle of this embodiment:

[0038] When the workbench 9 needs to switch positions and rotate, the external control cabinet sends a counterclockwise rotation command to the reduction motor 33. The reduction motor 33 drives the gear 31 to rotate. The gear 31 meshes with the annular tooth groove 32 on the adjusting ring 10, causing the adjusting ring 10 to swing counterclockwise in a circumferential direction. At this time, the guide wheel 6 on the column 5 is located in the groove 11 of the adjusting ring 10. Under the action of the tension spring 41, the column 5 moves along the linear guide rail 42 towards the direction of the rotating platform 13 and separates from the card box 7 on the lower side of the workbench 9. The workbench 9 is in the liberated state.

[0039] Afterwards, the rotating platform 13 receives the signal from the control cabinet and starts working, precisely rotating the worktable 9 to switch work positions. The omnidirectional ball 8 at the top of the column 5 contacts the worktable 9 by rolling, which effectively avoids frictional resistance caused by the relative movement between components while maintaining support capacity, ensuring that the worktable 9 rotates smoothly.

[0040] When the workstation switch is completed and the worktable 9 needs to be locked, the control cabinet controls the geared motor 33 to rotate clockwise, and the adjusting ring 10 swings clockwise in a circumferential direction. The guide wheel 6 abuts against the flange 12 of the adjusting ring 10. During this process, the flange 12 pushes the guide wheel 6, so that the column 5 overcomes the tension of the tension spring 41 and moves along the linear guide rail 42 away from the rotating platform 13 until the column 5 is re-engaged with the card box 7. The worktable 9 is locked and cannot continue to rotate, which facilitates the precise processing of each process and avoids accidental operation that could injure the operator who is placing the workpiece.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A turntable locking mechanism, comprising a base (1), wherein a rotating platform (13) is fixedly mounted on the upper side of the base (1), and a worktable (9) is fixedly mounted on the upper side of the output platform of the rotating platform (13), characterized in that: A sliding base (4) is circumferentially mounted on the upper side of the base (1). A column (5) capable of moving radially along the worktable (9) is mounted on the upper side of the sliding base (4). A universal ball (8) is fixedly mounted on the upper end of the column (5), and the upper end of the universal ball (8) abuts against the worktable (9). An adjusting ring (10) is slidably mounted on the upper side of the base (1) via a support member (2). A drive mechanism (3) for rotating the adjusting ring (10) is mounted on the upper side of the base (1). A card box (7) for engaging the column (5) is fixedly mounted on the lower side of the workbench (9). A guide wheel (6) is rotatably mounted on the circumferential side of the column (5). Grooves (11) are evenly provided on the outer circumference of the adjusting ring (10). A flange (12) is formed between adjacent grooves (11). When the adjusting ring (10) swings counterclockwise, the guide wheel (6) abuts against the groove (11). When the adjusting ring (10) swings clockwise, the guide wheel (6) abuts against the flange (12).

2. The turntable locking mechanism according to claim 1, characterized in that: The columns (5) are arranged in a circular pattern of 3 to 6, and the support member (2) is located between the columns (5) and the rotating platform (13).

3. The turntable locking mechanism according to claim 1, characterized in that: The support member (2) includes a smooth rod screw (21) and a support rod (23). The lower end of the support rod (23) is fixedly assembled with the base (1). The upper end of the support rod (23) is screwed with the smooth rod screw (21) through a screw hole. The adjusting ring (10) has an arc groove (14) for passing through the smooth rod screw (21).

4. The turntable locking mechanism according to claim 3, characterized in that: The support member (2) also includes slip rings (22), and each of the light rod screws (21) is fitted with two slip rings (22), and the two slip rings (22) respectively abut against the upper and lower sides of the adjusting ring (10).

5. The turntable locking mechanism according to claim 3, characterized in that: The sliding base (4) includes a tension spring (41) and a linear guide rail (42). The slide of the linear guide rail (42) is fixedly assembled with the lower end of the column (5). One end of the tension spring (41) is fixedly installed on the circumferential side of the column (5), and the other end of the tension spring (41) is fixedly assembled with the support rod (23).

6. The turntable locking mechanism according to claim 1, characterized in that: The drive mechanism (3) includes a gear (31), a ring-shaped toothed groove (32), and a geared motor (33). The geared motor (33) is fixedly installed on the upper side of the base (1). The gear (31) is fixedly installed at the output end of the geared motor (33). The ring-shaped toothed groove (32) is opened on the inner side of the circumference of the adjusting ring (10). The gear (31) meshes with the ring-shaped toothed groove (32).

7. The turntable locking mechanism according to claim 1, characterized in that: The groove (11) and the flange (12) are connected by a smooth chamfer.

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