A turret locking device

Abstract

The utility model discloses a rotary table locking device, including frame, rotary table, a plurality of locking components and cylinder subassembly, and rotary table is rotatably supported on frame through the central shaft, a plurality of locking components are fixedly installed below rotary table along the rotary table circumference, and cylinder subassembly fixedly installed in frame one side, and it includes cylinder transmission rod by cylinder drive, locking component includes base and clamping part, and clamping part is fixedly installed below rotary table through base, and the locking space that can pass through cylinder transmission rod is formed between clamping part, is equipped with a locking hole on the base, when rotary table rotates to the preset angle, makes cylinder transmission rod align the locking hole, and cylinder drives cylinder transmission rod vertically and jacks up, and cylinder transmission rod passes locking space and locking hole in proper order, until with the lower end surface of rotary table abuts, thereby realizes the rigid locking of rotary table. Through above -mentioned design, the utility model greatly improved the rotary table positioning accuracy, need not manual intervention, greatly improved production efficiency, is applicable to the mass production demand.

Description

Technical Field

[0001] This utility model relates to the field of automated processing equipment technology, and in particular to a turntable locking device for robotic welding or other multi-angle processing operations. Background Technology

[0002] In the field of robotic welding, complex workpieces with multiple welding positions typically need to be placed on a turntable, and the welding angle is switched by rotating the turntable. Currently, the rotation and positioning of the turntable mostly rely on manual operation or simple mechanical limiting, such as using pins or screws for tightening. These mechanisms require manual intervention, are cumbersome and inefficient, and have poor consistency in locking force, making it difficult to guarantee positioning accuracy. This results in inconsistent welding quality, failing to meet the needs of mass production. Moreover, simple mechanical limiting structures are prone to displacement when subjected to the impact and vibration of welding operations, leading to a decrease in accuracy. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a turntable locking device that has reliable locking, high positioning accuracy, can effectively resist vibration and impact during operation, and improves the consistency of product quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A turntable locking device includes a frame, a turntable, a plurality of locking assemblies, and a cylinder assembly. The turntable is rotatably supported on the frame via a central shaft; the plurality of locking assemblies are fixedly installed circumferentially below the turntable; the cylinder assembly is fixedly installed on one side of the frame and includes a vertically extendable cylinder transmission rod driven by a cylinder. The locking assembly includes a base and a clamping part, the clamping part being fixedly mounted below the turntable via the base. A locking space is formed between the clamping parts, allowing the cylinder drive rod to pass through, and a locking hole is provided on the base; When the turntable rotates to a preset angle, aligning the cylinder drive rod with the locking hole, the cylinder drives the cylinder drive rod to rise vertically upwards. The cylinder drive rod passes sequentially through the locking space and the locking hole until it abuts against the lower end face of the turntable, thereby achieving rigid locking of the turntable.

[0005] As a further improvement of this utility model, the base includes a connecting plate and a connecting block, the connecting block being located below the connecting plate, and the two being an integrally formed structure; the locking hole penetrates through the connecting plate and the connecting block.

[0006] As a further improvement of this utility model, the connecting plate is provided with a plurality of first mounting holes for connecting with the turntable; the connecting block is provided with a plurality of threaded holes on its surrounding sidewalls for threaded connection with the clamping part.

[0007] As a further improvement of this utility model, the clamping part includes several connecting brackets and several rollers, and the rollers are rotatably mounted on the connecting brackets.

[0008] As a further improvement of this utility model, the connecting bracket includes a first part and a pair of oppositely arranged second parts. The second parts are located below the first part and are integrally formed with the first part. The first part has holes corresponding to the threaded holes on the connecting block. The pair of second parts have pin holes, and the roller is rotatably installed between the pair of second parts by means of pins.

[0009] As a further improvement of this utility model, a position sensor is also included on one side of the cylinder assembly. This sensor is used to detect the rotation angle of the turntable; when the turntable reaches the preset angle, the position sensor sends a signal to the control system, which then sends a signal command to the cylinder assembly to trigger the cylinder drive rod to lift.

[0010] The beneficial effects of this utility model are: This utility model provides a turntable locking device. By arranging several locking components along the axial direction of the turntable on its lower end face, locking at multiple angles and positions can be achieved. The locking components cooperate with the cylinder assembly. The cylinder drive rod passes through the locking space formed by the clamping part and the locking hole on the base. The drive rod cooperates with the inner wall of the locking hole, constraining the horizontal radial movement of the turntable. The top end of the drive rod abuts against the bottom surface of the turntable, constraining the vertical displacement and rotation of the turntable around the horizontal axis. This locking method ensures that the turntable is stably positioned and will not deflect, eliminating the positioning errors caused by manual intervention and conventional mechanical positioning methods, greatly improving the processing accuracy, and can withstand the impact and vibration generated during welding operations, ensuring the consistency of product processing quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the turntable locking device described in this utility model; Figure 2 This is a schematic diagram of the locking component in this utility model; Figure 3 This is a schematic diagram of the locking component from another angle in this utility model. Figure 4 This is a schematic diagram of the base structure in this utility model; Figure 5 This is a schematic diagram of the clamping part structure in this utility model; Figure 6This is a schematic diagram of the cooperation between a single locking component and a cylinder component in this utility model (locked state). Figure 7 This is a schematic diagram of the cooperation between a single locking component and a cylinder component in this utility model (unlocked state). The components in the attached diagram are labeled as follows: 1. Frame; 2. Turntable; 3. Locking assembly; 31. Base; 311. Connecting plate; 3111. First mounting hole; 312. Connecting block; 3121. Threaded hole; 313. Locking hole; 32. Clamping part; 321. Connecting bracket; 321a. First part; 321b. Second part; 322. Roller; 323. Pin; 4. Cylinder assembly; 41. Cylinder transmission rod; 5. Position sensor. Detailed Implementation

[0012] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0013] Example: This embodiment describes the structure of a turntable locking device.

[0014] like Figure 1 , 2 As shown in Figure 3, the turntable locking device provided by this utility model consists of a frame 1, a turntable 2, multiple locking components 3 evenly distributed around the turntable 2, and a cylinder assembly 4. The turntable 2 is rotatably supported on the frame 1 via a central shaft and is driven to rotate by a motor (not shown in the figure). The cylinder assembly 4 is fixedly mounted on one side of the frame 1 by bolts. In this embodiment, the cylinder assembly 4 includes a vertically upward cylinder transmission rod 41 driven by a cylinder, which is used to position and lock the turntable in conjunction with the locking components after the turntable rotates to a preset angle position.

[0015] Specifically, in conjunction with the appendix Figure 3 , 4 As shown, the locking assembly 3 includes a base 31 and a clamping part 32. The clamping part 32 is fixedly mounted below the turntable 2 via the base 31. The base 31 is integrally machined from a connecting plate 311 and a connecting block 312. The connecting plate 311 has multiple first mounting holes 3111, which are fixedly connected to the bottom surface of the turntable 2 by bolts. Threaded holes 3121 are machined on the four side walls of the connecting block 312. A locking hole 313 is machined through the connecting plate 311 and the connecting block 312 at the center of the base 31.

[0016] Combined with appendix Figure 3 , 4As shown in Figure 5, the clamping part 32 includes a connecting bracket 321 and rollers 322. Each connecting bracket 321 is integrally formed from a first part 321a and a pair of second parts 321b. The first part 321a has a through hole, which is bolted to the threaded hole 3121 on the side wall of the connecting block 312 to fix the entire connecting bracket 321 to the base 31. A roller 322 is installed between each pair of opposing second parts 321b via a pin 323. In a preferred embodiment, a clamping part consists of four connecting brackets and four rollers arranged in pairs to form a locking space.

[0017] Combined with appendix Figure 6 , 7 As shown in the description of the locking assembly structure, a locking space is formed between the clamping parts 32, through which the cylinder drive rod 41 can pass. A locking hole 313 is provided on the base 31. When the turntable 2 rotates to a preset angle, the cylinder drive rod 41 is aligned with the locking hole 313 on the base below the turntable. At this time, the cylinder drives the cylinder drive rod 41 to rise vertically upward, passing through the locking space and the locking hole 313 in sequence, and abutting against the lower end face of the turntable 2 to achieve locking.

[0018] Rigid locking of the turntable is achieved through the cooperation of locking components and cylinder components. The cylinder drive rod rises to the lower end face of the turntable through the locking space and locking hole, contacting and abutting the turntable, greatly improving the stability of the turntable positioning and locking, thus ensuring the stable positioning of the workpiece on the turntable. This structure solves the problems of low positioning accuracy, inability to guarantee repeatability, and poor product processing consistency caused by conventional mechanical positioning methods involving manual intervention. Furthermore, the composition of the locking components, the design of the clamping part and the base, and the direct lifting and pressing of the cylinder drive rod against the turntable form a rigid connection from the frame to the turntable, resulting in high locking force, high positioning accuracy, and effective resistance to vibration and impact during operation.

[0019] The device also includes several sensors, including a position sensor installed on the cylinder assembly and connected to the cylinder assembly via a signal. Its purpose is to detect when the turntable rotates to a certain angle, such as 90 degrees. When the locking assembly rotates with the turntable to be directly above the cylinder assembly, the position sensor detects that the turntable has rotated into position and sends the detection signal to the cylinder assembly through the control system. The cylinder assembly then performs an action, and the cylinder drives the cylinder transmission rod to lift towards the locking assembly.

[0020] Working principle: Combination Figure 1-7. The turntable 2 rotates under the drive of the motor. When a locking assembly 3 mounted on it rotates to be directly above the cylinder drive rod 41, that is, when the locking hole 313 is aligned with the cylinder drive rod 41, the position sensor 5 (such as a proximity switch or angle encoder) set on the cylinder assembly 4 detects a signal and sends this signal to the control system. The control system then commands the cylinder assembly 4 to move, driving the cylinder drive rod 41 to lift vertically upward. The control system can be a PLC microcontroller or an electronic device used in mechanical equipment that can implement this function. This is not the inventive point in this utility model and belongs to a technical means well known and used by those skilled in the art, therefore it will not be described in detail.

[0021] The cylinder drive rod 41 first enters the locking space formed by the roller 322. The rotation of the roller 322 reduces friction and serves as an initial guide and protection. Subsequently, the cylinder drive rod 41 continues to rise and precisely enters the locking hole 313 of the base 31. The locking hole 313 serves as a secondary precise positioning guide. After the top end of the cylinder drive rod 41 passes through the locking hole 313, it is firmly pressed against the lower end surface of the turntable 2. The strong rigid support force locks the turntable 2 in the current position, thereby providing a stable and reliable working platform for robotic welding.

[0022] When a change of work position is required, the cylinder transmission rod 41 retracts and disengages from the turntable 2, allowing the turntable 2 to rotate freely to the next angular position, repeating the locking process described above.

[0023] In this invention, the cylinder drive rod passes sequentially through the locking space formed by the clamping part and the locking hole on the base. This "dual-guide" structure ensures the smoothness and precision of the lifting process, strengthens the support for the cylinder drive rod, and improves the overall stability of the mechanism.

[0024] By designing a position sensor that works in conjunction with cylinder and locking components, automatic locking is achieved once the turntable is in position, eliminating the need for manual intervention and greatly improving production efficiency, making it suitable for mass production needs.

[0025] The locking device for the transfer platform designed in this utility model has a compact and simple overall structure. Most of its components are conventionally machined parts, resulting in low manufacturing costs. It is easy to assemble and maintain, and has high practical value and promising prospects for promotion.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A turntable locking device, characterized in that, include: Rack (1); The turntable (2) is rotatably supported on the frame (1) via a central shaft; Several locking components (3) are fixedly installed circumferentially below the turntable (2); The cylinder assembly (4) is fixedly installed on one side of the frame (1); The cylinder assembly (4) includes a cylinder drive rod (41) driven by a cylinder. The locking assembly (3) includes a base (31) and a clamping part (32). The clamping part (32) is fixedly installed below the turntable (2) through the base (31). A locking space is formed between the clamping parts (32) for the cylinder transmission rod (41) to pass through. A locking hole (313) is provided on the base (31). When the turntable (2) rotates to a preset angle, so that the cylinder transmission rod (41) is aligned with the locking hole (313), the cylinder drives the cylinder transmission rod (41) to rise vertically upward, passing through the locking space and the locking hole (313) in sequence and abutting against the lower end face of the turntable (2) to achieve locking.

2. The turntable locking device according to claim 1, characterized in that, The base (31) includes a connecting plate (311) and a connecting block (312). The connecting block (312) is located below the connecting plate (311), and the connecting plate (311) and the connecting block (312) are integrally formed. The locking hole (313) passes through the connecting plate (311) and the connecting block (312).

3. The turntable locking device according to claim 2, characterized in that, The connecting plate (311) has a plurality of first mounting holes (3111) for connecting with the turntable (2). The connecting block (312) has several threaded holes (3121) on its four sides for threaded connection with the clamping part (32).

4. A turntable locking device according to claim 3, characterized in that, The clamping part (32) includes a plurality of connecting brackets (321) and a plurality of rollers (322), the rollers (322) being rotatably mounted on the connecting brackets (321).

5. A turntable locking device according to claim 4, characterized in that, The connecting bracket (321) includes a first part (321a) and a pair of opposing second parts (321b), the second parts (321b) being located below the first part (321a), and the first part (321a) and the second part (321b) being an integrally formed structure; The first part (321a) has a hole position corresponding to the threaded hole (3121) on the connecting block (312); A pair of second parts (321b) are provided with pin holes, and the roller (322) is rotatably mounted between the pair of second parts (321b) by passing a pin (323) through the pin holes.

6. A turntable locking device according to claim 1, characterized in that, It also includes a position sensor (5) located on one side of the cylinder assembly (4).

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