Rotary table translation mechanism with self-locking function and method

Abstract

The application relates to the technical field of industrial cleaning mechanisms, and particularly discloses a rotating disc translation mechanism with a self-locking function and a method, which comprises a track frame, a translation seat, a transplanting rotating disc, a translation driving unit, a rotating driving unit, a self-locking mechanism and an unlocking plate. The self-locking mechanism is installed on the translation seat and comprises a self-locking support, a tension spring and a locking plate. The middle part of the locking plate is hinged to the self-locking support through a rotating shaft, and the upper part of the locking plate is always pressed against the transmission part of the transplanting rotating disc by the tension spring, so that automatic locking during translation is realized. The unlocking plate is fixedly installed at a predetermined station of the track frame. When the translation seat reaches the station, the unlocking plate collides with the lower part of the locking plate to make the lower part rotate and be unlocked. The application does not need an external power source, has a simple structure, is suitable for water vapor and high-temperature environments, effectively solves the problem of unexpected rotation during translation of the rotating disc, and reduces maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of industrial cleaning mechanism technology, specifically to a turntable translation mechanism and method with self-locking function. Background Technology

[0002] Turntable translation mechanisms are widely used in industrial cleaning machines. They are used to move the turntable carrying the workpiece horizontally between two or more workstations and drive the turntable to rotate at a designated workstation. They work in conjunction with spray pipes or air cutters to achieve spray cleaning or water blowing functions.

[0003] In practical applications, the workpieces placed on the turntable often exhibit eccentricity, and the turntable is susceptible to uncontrolled rotation during translation due to factors such as vibration and chain clearance. This unintended rotation can lead to inaccurate workpiece positioning, interference with surrounding equipment, and even damage to the workpiece or equipment, severely impacting production efficiency and safety.

[0004] To address the aforementioned problems, existing technologies typically incorporate a pneumatic locking mechanism beneath the turntable: when the turntable needs to rotate, the cylinder retracts to release it; when the turntable needs to move horizontally, the cylinder extends to lock it. However, this solution has the following significant drawbacks: 1. The pneumatic locking mechanism must move with the turntable, and the air supply pipes for it must also move, resulting in complex pipe layout, easy tangling or wear; 2. Industrial cleaning machines often operate in environments with large amounts of water and high-temperature steam. When cylinders are exposed to such harsh conditions for extended periods, the seals are prone to aging and failure, resulting in a significantly shortened service life and high maintenance costs.

[0005] Therefore, there is an urgent need for a turntable self-locking mechanism that is simple in structure, requires no external power, and can adapt to harsh working conditions, in order to solve the problem of unexpected rotation during the translation of the turntable, while reducing maintenance costs. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a turntable translation mechanism and method with a self-locking function, which can lock the turntable during translation, solving technical problems such as uncontrolled turntable rotation, short lifespan of pneumatic locking mechanisms, and high maintenance costs.

[0007] This invention is achieved through the following technical solution: A turntable translation mechanism with a self-locking function is provided, comprising: Track frame; The translation seat is movably mounted on the track frame; The transplanting turntable is rotatably mounted on the translation base, and a transmission part is provided around the circumference of the transplanting turntable; A translation drive unit is located at one end of the track frame and connected to the translation seat, used to drive the translation seat to translate along the track frame; A rotary drive unit is located at the other end of the track frame and is connected to the transmission part of the transplanting turntable; it is used to drive the transplanting turntable to rotate. The self-locking mechanism includes a self-locking bracket, a tension spring, and a locking plate. The self-locking bracket is fixed on the translation seat. The middle part of the locking plate is hinged to the self-locking bracket via a pivot. The tension spring is connected between the self-locking bracket and the locking plate. The upper part of the locking plate faces the transmission part and forms a locking head. The unlocking plate is installed at a predetermined position on the track frame, and is located on the movement path below the locking plate.

[0008] Furthermore, the rotary drive unit includes a rotary motor, and a drive sprocket is provided on the output shaft of the rotary motor, which meshes with the transmission unit.

[0009] Furthermore, the transmission part is a chain, and the locking head is a serrated structure facing the chain links.

[0010] Furthermore, the translation drive unit includes a translation motor, a transmission sprocket set, and a driven sprocket set. The transmission sprocket set and the driven sprocket set are respectively located at both ends of the track frame, and the transmission sprocket set and the driven sprocket set are connected by a transmission chain connected to the translation seat.

[0011] Furthermore, the two drive sprockets of the drive sprocket assembly are connected by a drive shaft, and the two driven sprockets of the driven sprocket assembly are connected by a driven shaft. A fixed sprocket is mounted on the drive shaft, and a drive sprocket is mounted on the output shaft of the translation motor. The drive sprocket and the fixed sprocket are connected by a drive chain. Furthermore, the bottom of the translation seat is equipped with rollers that make rolling contact with the track frame.

[0012] Furthermore, the unlocking plate is located on one side of the rotary drive unit, and the installation height of the unlocking plate on the track frame corresponds to the height of the lower part of the locking plate.

[0013] Furthermore, each end of the track frame is connected to a limiting block for restricting the translation distance of the translation seat.

[0014] Furthermore, the limiting block is connected to the track frame by adjusting bolts, and the limiting block has a strip-shaped through hole along the length of the track frame that matches the adjusting bolts.

[0015] Furthermore, the self-locking mechanism is not connected to an external power source.

[0016] The present invention also provides a method for translating a turntable with a self-locking function, applied to a turntable translation mechanism with a self-locking function, comprising the following steps: During the process of the translation drive unit driving the translation seat to translate along the track frame, the tension spring pulls the locking plate so that the locking head on its upper part keeps in contact with the transmission part of the transplanting turntable, preventing the transplanting turntable from rotating relative to the translation seat; When the translation seat moves to the predetermined work position, the unlocking plate contacts the lower part of the locking plate and pushes the locking plate to rotate around the rotating shaft, so that the locking head disengages from the transmission part and releases the rotation restriction on the transfer turntable; The rotary drive unit drives the transplanting turntable to rotate; When the translation seat leaves the predetermined position, the lower part of the locking plate disengages from the unlocking plate, the tension spring pulls the locking plate to reset, and the locking head re-engages with the transmission part, restoring the rotation restriction on the transfer turntable.

[0017] The beneficial effects of this invention are: This invention employs a purely mechanical self-locking mechanism, relying on the elasticity of a tension spring to keep the locking plate pressed against the transmission part, automatically locking the turntable during translation. It requires no external power source (such as an air source or electrical source), completely avoiding the problems of pipe movement and short lifespan associated with pneumatic locking mechanisms. The entire mechanism has no cylinders or seals, making it particularly suitable for the harsh environments of industrial cleaning machines filled with moisture and high temperatures. It boasts a long service life and is virtually maintenance-free.

[0018] The self-locking mechanism of the present invention moves together with the translation seat, and the unlocking plate is fixedly installed at the predetermined work position. When the translation seat reaches the work position, the unlocking plate collides with the lower part of the locking plate, causing it to rotate around the pivot, thereby automatically unlocking. The structure is simple and reliable, and no sensors or control system are required.

[0019] The position of the limit block can be easily adjusted through the strip-shaped through hole and the adjusting bolt to meet the needs of different workstation spacing, thereby improving the versatility and ease of debugging of the equipment. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the present invention.

[0021] Figure 3 This is a side view of the present invention.

[0022] Figure 4 This is a schematic diagram illustrating the interaction between the transplanting turntable and the unlocking plate in this invention; Figure 5 This is a schematic diagram of the self-locking mechanism in this invention.

[0023] In the diagram: 1-track frame; 2-rotary motor; 3-transfer turntable; 4-translation motor; 5-self-locking mechanism; 5-1-self-locking bracket; 5-2-tension spring; 5-3-locking plate; 5-4-rotating shaft; 6-unlocking plate; 7-drive sprocket assembly; 8-passive sprocket assembly; 9-drive chain; 10-limit block; 11-adjusting bolt; 12-strip through hole; 13-drive chain; 14-fixed sprocket; 16-roller; 18-translation seat; 19-transmission part; 20-drive shaft; 21-passive shaft; 22-drive sprocket; 23-locking head. Detailed Implementation

[0024] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to describe the solution.

[0025] like Figures 1 to 5 As shown, this embodiment provides a turntable translation mechanism with self-locking function, including a track frame 1, a translation seat 18, a transplanting turntable 3, a translation drive unit, a rotation drive unit, a self-locking mechanism 5, and an unlocking plate 6.

[0026] The track frame 1 is a long, rectangular frame structure that is fixedly installed on the frame of the industrial cleaning machine. The translation seat 18 is movably mounted on the track frame 1, and four rollers 16 are installed at its bottom. The track frame 1 is provided with guide rails extending along its length, and the rollers 16 roll in contact with the guide rails.

[0027] The transplanting turntable 3 is rotatably mounted on the translation seat 18 via bearings, and can rotate freely around its own axis on the translation seat 18. A transmission part 19, which is a ring chain in this embodiment, is fixedly installed circumferentially on the transplanting turntable 3.

[0028] The translation drive unit includes a translation motor 4, a transmission sprocket set 7, and a driven sprocket set 8. The transmission sprocket set 7 and the driven sprocket set 8 are respectively installed at both ends of the track frame 1. The two transmission sprockets of the transmission sprocket set 7 are connected by a transmission shaft 20, and a fixed sprocket 14 is also fixed on the transmission shaft 20. The two driven sprockets of the driven sprocket set 8 are connected by a driven shaft 21. The translation motor 4 is fixed at one end of the track frame 1, and a drive sprocket is installed on its output shaft. The drive sprocket and the fixed sprocket 14 are connected by a drive chain 13. The transmission sprocket set 7 and the driven sprocket set 8 are connected by a transmission chain 9, the upper side of which is fixedly connected to the translation seat 18. When the translation motor 4 rotates, it drives the transmission sprocket set 7 to rotate via the drive chain 13, which in turn drives the transmission chain 9, causing the translation seat 18 and its transplanting turntable 3 to move horizontally along the track frame 1.

[0029] The rotary drive unit includes a rotary motor 2, which is vertically mounted on the track frame 1 via a mounting base. A drive sprocket 22 is mounted upwards on its output shaft, and this drive sprocket 22 meshes with the chain on the transplanting turntable 3. When the rotary motor 2 operates, the drive sprocket 22 drives the chain to rotate the transplanting turntable 3 around its own axis.

[0030] The self-locking mechanism 5 is mounted on the translation seat 18 and moves with it. The self-locking mechanism 5 includes a self-locking bracket 5-1, a tension spring 5-2, a locking plate 5-3, and a rotating shaft 5-4. The self-locking bracket 5-1 is fixed to the translation seat 18. The locking plate 5-3 is approximately L-shaped or strip-shaped, with its middle section hinged to the self-locking bracket 5-1 via the rotating shaft 5-4, allowing the locking plate 5-3 to swing around the shaft. One end of the tension spring 5-2 is connected to the self-locking bracket 5-1, and the other end is connected to the lower part of the locking plate 5-3. Under the tension of the tension spring 5-2, the upper part of the locking plate 5-3 always tends to move towards the transmission chain 9. The upper part of the locking plate 5-3 is provided with a serrated locking head 23, which matches the shape of the chain links. Under the action of the tension spring 5-2, it can engage between the chain links, thereby preventing the transplanting turntable 3 from rotating relative to the translation seat 18.

[0031] The unlocking plate 6 is a fixed stop, installed on the track frame 1 at a position corresponding to the rotating station, specifically located on one side of the rotary motor 2. The installation height of the unlocking plate 6 corresponds exactly to the height of the lower part of the locking plate 5-3, and it is located on the movement path of the lower part of the locking plate 5-3. When the translation seat 18 moves the transplanting turntable 3 to the rotating station, the lower part of the locking plate 5-3 first contacts the unlocking plate 6. As the translation seat 18 continues to move, the unlocking plate 6 presses against the lower part of the locking plate 5-3, forcing the locking plate 5-3 to overcome the tension of the tension spring 5-2 and rotate upward around the rotating shaft 5-4, thereby disengaging the serrations on the upper part of the locking plate 5-3 from the chain, thus unlocking it. At this time, the rotary motor 2 can drive the transplanting turntable 3 to rotate freely.

[0032] When the translation seat 18 leaves the rotating station, the lower part of the locking plate 5-3 disengages from the unlocking plate 6. Under the tension of the tension spring 5-2, the locking plate 5-3 automatically resets, and the saw teeth re-engage into the chain links, restoring the self-locking state.

[0033] In addition, limit blocks 10 are installed at both ends of the track frame 1 to limit the extreme stroke of the translation seat 18 and prevent it from slipping off the track. Each limit block 10 is connected to the track frame 1 via an adjusting bolt 11. A strip-shaped through hole 12 is provided on the limit block 10 along the length of the track frame 1. The adjusting bolt 11 passes through the strip-shaped through hole 12 and is connected to the track frame 1 with a mating bolt. After loosening the adjusting bolt 11, the position of the limit block 10 can be adjusted along the length of the track frame 1 to adapt to different stroke requirements. After adjustment, tightening the adjusting bolt 11 will fix it.

[0034] In this embodiment, the self-locking mechanism 5 relies entirely on mechanical structure to lock and unlock, and has no connection with external air sources, power sources or other power sources. Therefore, it is particularly suitable for harsh environments in industrial cleaning machines that are full of water vapor and high temperature. There is no need to replace the seals regularly, and the maintenance cost is extremely low.

[0035] Of course, the above description is not limited to the examples above. Technical features not described in this invention can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solutions of this invention and are not intended to limit this invention. This invention has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this invention do not depart from the spirit of this invention and should also fall within the scope of protection of the claims of this invention.

Claims

1. A turntable translation mechanism with self-locking function, characterized in that: include: Track frame (1); The translation seat (18) is movably mounted on the track frame (1); The transplanting turntable (3) is rotatably mounted on the translation seat (18), and the circumferential transmission part (19) is provided on the transplanting turntable (3). A translation drive unit is disposed at one end of the track frame (1) and connected to the translation seat (18) for driving the translation seat (18) to translate along the track frame (1); A rotary drive unit is located at the other end of the track frame (1) and is connected to the transmission part of the transplanting turntable (3) for driving the transplanting turntable (3) to rotate. The self-locking mechanism (5) includes a self-locking bracket (5-1), a tension spring (5-2), and a locking plate (5-3). The self-locking bracket (5-1) is fixed on the translation seat. The middle part of the locking plate (5-3) is hinged to the self-locking bracket (5-1) through a rotating shaft (5-4). The tension spring (5-2) is connected between the self-locking bracket (5-1) and the locking plate (5-3). The upper part of the locking plate (5-3) faces the transmission part and forms a locking head. The unlocking plate (6) is installed at a predetermined position on the track frame (1), and the unlocking plate (6) is located on the movement path below the locking plate (5-3).

2. The turntable translation mechanism with self-locking function according to claim 1, characterized in that: The rotary drive unit includes a rotary motor (2), and the output shaft of the rotary motor (2) is provided with a drive sprocket, which meshes with the transmission unit (19).

3. The turntable translation mechanism with self-locking function according to claim 1 or 2, characterized in that: The transmission part is a chain, and the locking head (23) is a sawtooth structure facing the chain link.

4. The turntable translation mechanism with self-locking function according to claim 1, characterized in that: The translation drive unit includes a translation motor (4), a transmission sprocket set (7) and a driven sprocket set (8). The transmission sprocket set (7) and the driven sprocket set (8) are respectively located at both ends of the track frame (1). The transmission sprocket set (7) and the driven sprocket set (8) are connected by a transmission chain (9) connected to the translation seat (18).

5. The turntable translation mechanism with self-locking function according to claim 4, characterized in that: The two drive sprockets of the drive sprocket group (7) are connected by a drive shaft (20), and the two passive sprockets of the passive sprocket group (8) are connected by a passive shaft (21). A fixed sprocket (14) is installed on the drive shaft (20), and a drive sprocket (13) is installed on the output shaft of the translation motor (4). The drive sprocket (13) and the fixed sprocket (14) are connected by a drive chain (13).

6. The turntable translation mechanism with self-locking function according to claim 1, characterized in that: The bottom of the translation seat is provided with rollers (16), which make rolling contact with the track frame (1).

7. The turntable translation mechanism with self-locking function according to claim 1, characterized in that: The unlocking plate (6) is located on one side of the rotary drive unit, and the installation height of the unlocking plate (6) on the track frame (1) corresponds to the height of the lower part of the locking plate (5-3).

8. The turntable translation mechanism with self-locking function according to claim 1, characterized in that: The two ends of the track frame (1) are respectively connected to limiting blocks (10) for limiting the translation distance of the translation seat (18). The limiting blocks (10) are connected to the track frame (1) by adjusting bolts (11). The limiting blocks (10) have strip-shaped through holes (12) that cooperate with the adjusting bolts (11) along the length of the track frame (1).

9. The turntable translation mechanism with self-locking function according to claim 1, characterized in that: The self-locking mechanism (5) is not connected to the external power source.

10. A method for translating a turntable with a self-locking function, applied to the turntable translation mechanism with a self-locking function as described in any one of claims 1 to 10, characterized in that, Includes the following steps: During the translation drive unit drives the translation seat (18) to translate along the track frame (1), the tension spring (5-2) pulls the locking plate (5-3) so that the locking head (23) on its upper part keeps in contact with the transmission part (19) of the transplant turntable (3) and prevents the transplant turntable (3) from rotating relative to the translation seat (18). When the translation seat (18) is translated to the predetermined work position, the unlocking plate (6) contacts the lower part of the locking plate (5-3) and pushes the locking plate (5-3) to rotate around the rotating shaft (5-4), so that the locking head (23) is disengaged from the transmission part (19) and the rotation restriction on the transplanting turntable (3) is released; The rotary drive unit drives the transplanting turntable (3) to rotate; When the translation seat (18) leaves the predetermined work position, the lower part of the locking plate (5-3) disengages from the unlocking plate (6), the tension spring (5-2) pulls the locking plate (5-3) to reset, and the locking head (23) re-engages with the transmission part (19), restoring the rotation restriction on the transfer turntable (3).

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