Polishing machine tool for television base production

Abstract

The invention relates to the technical field of television production, in particular to a polishing machine tool for television base production, which comprises a workbench, supports are fixedly connected to two ends of one side of the middle part of the upper end surface of the workbench, a polishing assembly is arranged between the two supports, and the polishing assembly comprises a driving polishing wheel and a driven polishing wheel; a variable guide block capable of deforming is arranged on one side of the middle of the upper end face of the workbench, the outer portion of the end, away from the support, of the variable guide block is sleeved with a fixing groove block, and the lower end of the fixing groove block is fixedly connected with the workbench. The end, away from the fixed groove block, of the variable guide block is sleeved with a movable groove block. Compared with the prior art, the problem that polishing is uneven due to the fact that the pushing path cannot be flexibly adjusted according to the angle of the V-shaped television base in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of television production, in particular to a polishing machine tool used for producing television bases. Background Art

[0002] In the field of television production, the production quality of the TV base directly affects the overall stability and aesthetics of the TV. Among them, the V-shaped TV base faces many challenges in the production process due to its unique shape, especially the polishing process.

[0003] In the prior art, a Chinese patent document with the publication number CN118003225B proposes a processing device for producing TV bases, comprising a bracket and a shell, etc.; the shell is fixedly connected to the bracket, and the present invention realizes automatic loading and unloading of the V-shaped TV base by a conveying assembly; at the same time, through the conveying assembly located on the right side of the shell, after the front side of the V-shaped TV base is polished, the V-shaped TV base is driven to slowly rotate clockwise so that the left end of the V-shaped TV base that has not been polished is relatively maintained at the center position of the three polishing wheels, and the polishing of the V-shaped TV base is successfully completed. Although it solves the problem that the existing bent pipe polishing machine is difficult to adapt to the production requirements of the V-shaped TV base, and a large amount of debris and burrs are generated during the polishing process, these debris will be rolled into the equipment with the polishing wheel, which is difficult to handle and affects the normal use of the equipment over time;

[0004] The above technology completes the feeding of the V-shaped TV base by rotating the first fixed block, and the running path of the first fixed block is fixed. However, in actual production applications, it is often necessary to polish V-shaped TV bases of various angles according to different production requirements. Since the above technology cannot flexibly adjust the pushing path according to the angle of the V-shaped TV base, the V-shaped TV base is very likely to swing left and right in the polishing wheel during the polishing process. This swing will aggravate the polishing wear on the base surface, ultimately resulting in uneven polishing and affecting product quality.

[0005] Furthermore, we disclose a polishing machine for producing TV bases to meet the practical demand for uneven polishing caused by the inability of the existing technology to flexibly adjust the pushing path according to the angle of the V-shaped TV base. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to propose a polishing machine for the production of TV bases to solve the problem in the prior art that the pushing path cannot be flexibly adjusted according to the angle of the V-shaped TV base, resulting in uneven polishing.

[0007] For the above purpose, the present invention provides a polishing machine tool for the production of TV bases, including a workbench. At both ends on one side of the middle of the upper end surface of the workbench, there are fixedly connected supports. Between the two supports, there is a polishing assembly, which includes an active polishing wheel and a driven polishing wheel. The polishing assembly is used to polish the TV base. On one side of the middle of the upper end surface of the workbench, there is a deformable variable guide block. A fixed groove block is sleeved outside one end of the variable guide block away from the support. The lower end of the fixed groove block is fixedly connected to the workbench. An active groove block is sleeved on one end of the variable guide block away from the fixed groove block. On one side of the middle of the upper end surface of the workbench, there is an arc-shaped chute. The lower end of the active groove block is slidably connected in the chute. A push plate is slidably connected to the variable guide block. The push plate slides on the variable guide block to push the TV base through between the active polishing wheel and the driven polishing wheel.

[0008] Preferably, the active polishing wheel is snap-fitted and rotatably connected between the upper ends of the two supports. At the lower part near the middle of the two supports, there are slidably connected slide plates. The driven polishing wheel is snap-fitted and rotatably connected between the two slide plates. On the upper side of one side of one support, there is a first servo motor. The output end of the first servo motor is fixedly connected to the active polishing wheel to drive the active polishing wheel to rotate. One end of the active polishing wheel and the driven polishing wheel respectively penetrates through the support and the slide plate through a transmission shaft and is fixedly connected with a transmission belt pulley. An endless belt is sleeved outside the two transmission belt pulleys for transmission.

[0009] Preferably, on one side of the outer wall of one support, there is a rotatably connected connecting rod. On the outer side of the lower end of the connecting rod, there is a rotatably connected follower belt pulley. The endless belt sleeved outside the two transmission belt pulleys is also sleeved outside the follower belt pulley for transmission. In the middle of one side end face of the connecting rod, there is a fixedly connected telescopic spring. One end of the telescopic spring away from the connecting rod is fixedly connected to the support.

[0010] Preferably, on the outer lower part of one side end face of the two slide plates, there are fixedly connected top plates. At the lower ends of the two top plates, there are fixedly connected buffer spring seats. The lower ends of the two buffer spring seats are fixedly connected to the workbench.

[0011] Preferably, on one side of the upper end of the workbench, there is a pushing module, which is used to push the push plate to slide on the variable guide block. The pushing module includes two bearing seats. Between the two bearing seats, there is a snap-fitted and rotatably connected screw rod. On the upper end of one bearing seat, there is a second servo motor. The output end of the second servo motor is fixedly connected to the screw rod. The outer part of the screw rod is in transmission connection with a sliding seat. The lower end of the sliding seat is slidably connected to the workbench. On the side of the sliding seat close to the push plate, there is a fixedly connected push rod.

[0012] Preferably, a middle part of one end face of the push plate is fixedly connected with an arc-shaped block. A middle part of an outer wall of the arc-shaped block has the same height as an axis of the push rod. An upper end of one end face of the push plate close to the support is fixedly connected with a push block, and one side of the push block close to the support is recessed inward.

[0013] Preferably, a tension spring is fixedly connected to an inner side wall of one side of the variable guide block close to the fixed groove block. One end of the tension spring far from the fixed groove block is fixedly connected with the push plate.

[0014] Preferably, an adjusting module is arranged on one side of the upper end of the workbench far from the pushing module. The adjusting module is used for adjusting the deformation amount of the variable guide block. The adjusting module includes a support seat fixedly connected to the upper end face of the workbench. A threaded rod is threadedly connected to an upper end of the support seat. One end of the threaded rod is fixedly connected with a turntable. One side of an upper end of the movable groove block is fixedly connected with a pressing plate. One end of the threaded rod far from the turntable is in contact with the pressing plate. A fixed seat is fixedly connected to one end of the workbench where the sliding groove is located. A pulling-back spring is fixedly connected to one end face of the fixed seat. One end of the pulling-back spring far from the fixed seat is fixedly connected with the movable groove block.

[0015] Preferably, a positioning module is arranged between the active polishing wheel and the driven polishing wheel. The positioning module is used for limiting the position of the TV base between the active polishing wheel and the driven polishing wheel. The positioning assembly includes two second sleeve rods respectively and fixedly connected to middle parts of inner walls of the two supports. Second sliding rods are slidably connected to one ends of the two second sleeve rods close to each other. Rotating seats are fixedly connected to one sides of the two second sliding rods far from the second sleeve rods. One ends of the two rotating seats are rotatably connected with rollers. A reset spring is arranged inside the second sleeve rod. Two ends of the reset spring are respectively fixedly connected with the second sleeve rod and the second sliding rod.

[0016] Advantages of the present invention:

[0017] 1. Through the collaborative design of the variable guide block and the adjusting module, flexible adjustment of the pushing path of the V-shaped TV base is realized. An operator can drive the threaded rod to move by rotating the turntable, so that the movable groove block slides along the arc-shaped sliding groove and presses the variable guide block to change its bending deformation amount, thereby adjusting the movement trajectory angle of the push plate. This design breaks through the limitation of the fixed-path pushing in the prior art, enables the included angle between the pushing direction and the V-shaped base to be accurately matched, avoids the left-right swing of the base between the polishing wheels due to angle deviation, significantly reduces the uneven polishing wear phenomenon, and ensures the consistency of the surface quality of the product.

[0018] 2. Through the coordinated action of the bidirectional roller clamping mechanism and the return spring, the positioning module further eliminates the residual displacement deviation on the basis of the adjustable pushing path. When the V-shaped base is pushed between the polishing wheels, the two rollers form a dynamic clamping force field under the pre-tightening force of the return spring, allowing the base to move smoothly along the pushing direction while suppressing its small deviation perpendicular to the pushing direction through frictional resistance. Especially for asymmetric angle bases, the adaptive rotation characteristics of the rollers can automatically match the side contour of the base. In combination with the polishing wheel spacing adjustment mechanism, a dual-stable mechanism of "adjustable path + attitude locking" is constructed to improve the polishing uniformity.

[0019] 3. The polishing assembly adopts a sliding skateboard structure. The driven polishing wheel can move up and down along the support with the skateboard. The distance between the driving polishing wheel and the driven polishing wheel can be adjusted steplessly. Through the elastic support of the buffer spring seat and the top plate, the driven polishing wheel can always maintain a stable extrusion force on the TV bases of different heights. At the same time, the connecting rod drives the follower belt pulley to follow, and the transmission stability is maintained through the belt tension automatic compensation mechanism. This design enables the equipment to be compatible with the polishing requirements of TV bases of various specifications, eliminating the need for frequent tooling changes and greatly improving production flexibility.

[0020] 4. The equipment integrates a tension spring and a telescopic spring in the push plate reset mechanism and the polishing wheel drive system respectively to form a two-stage buffer structure. When the push plate resets, the tension spring provides a controllable return force to avoid mechanical impact. In the drive system, the telescopic spring absorbs the vibration generated by the displacement of the driven polishing wheel through elastic deformation, ensuring that the belt drive is always in the best tension state. The two groups of springs work together to effectively suppress the jitter and noise during the operation of the equipment and extend the service life of key components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0023] Figure 2 is a partial three-dimensional structure schematic diagram of the present invention;

[0024] Figure 3 is Figure 2 an enlarged view of part A in

[0025] Figure 4 is an installation schematic diagram of the second set of rods of the present invention;

[0026] Figure 5Schematic diagram of the partial three-dimensional structure of the pushing component of the present invention;

[0027] Figure 6 is Figure 4 the enlarged view of part B in

[0028] Figure 7 Schematic diagram of the three-dimensional structure of the push plate of the present invention;

[0029] Figure 8 Schematic diagram of the internal three-dimensional structure of the first sleeve rod of the present invention.

[0030] The markings in the figure are:

[0031] 1. Workbench; 2. Active polishing wheel; 3. Support; 4. First servo motor; 5. Driven polishing wheel; 6. Top plate; 7. Buffer spring seat; 8. Slide plate; 9. First sleeve rod; 10. First slide rod; 11. Support block; 12. Driving toothed belt pulley; 13. Telescopic spring; 14. Follow-up toothed belt pulley; 15. Push plate; 16. Support seat; 17. Threaded rod; 18. Extrusion plate; 19. Variable guide block; 20. Fixed groove block; 21. Tensile spring; 22. Movable groove block; 23. Chute; 24. Pull-back spring; 25. Fixed seat; 26. Push rod; 27. Slide seat; 28. Bearing seat; 29. Screw; 30. Second servo motor; 31. Second sleeve rod; 32. Return spring; 33. Second slide rod; 34. Rotating seat; 35. Roller; 36. Push block; 37. Arc-shaped block; 38. Connecting spring; 39. Connecting rod. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0033] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0034] Such as Figures 1 to 8As shown in the figure, a polishing machine tool for the production of TV bases includes a workbench 1. At both ends of the middle part of one side of the upper end surface of the workbench 1, supports 3 are fixedly connected. A polishing assembly is arranged between the two supports 3. The polishing assembly includes a driving polishing wheel 2 and a driven polishing wheel 5. The polishing assembly is used for grinding the TV base. A deformable variable guide block 19 is arranged in the middle part of one side of the upper end surface of the workbench 1. A fixed groove block 20 is sleeved outside one end of the variable guide block 19 away from the support 3. The lower end of the fixed groove block 20 is fixedly connected to the workbench 1. An activity groove block 22 is sleeved at one end of the variable guide block 19 away from the fixed groove block 20. A chute 23 is opened in the middle part of one side of the upper end surface of the workbench 1. The chute 23 is arc-shaped. The lower end of the activity groove block 22 is slidably connected in the chute 23. A push plate 15 is slidably connected to the variable guide block 19. The push plate 15 slides on the variable guide block 19 to push the TV base through between the driving polishing wheel 2 and the driven polishing wheel 5;

[0035] This device is an automated polishing machine tool designed specifically for TV bases. Through modular design, it realizes precise control of the entire process from feeding, positioning, polishing to discharging. Its core polishing assembly adopts a structure of a driving wheel and a driven wheel with adjustable spacing, combined with a toothed belt drive and a spring buffer mechanism, which can adapt to workpieces of different heights. The pushing module is driven by a screw 29 and a spring reset mechanism to ensure the stability of the reciprocating movement of the push plate 15. The adjusting module uses the combination of a threaded rod 17 and an arc-shaped chute 23 to flexibly adjust the deformation amount of the guide block to match the angle of the V-shaped base. The positioning module takes the clamping of two-way rollers 35 as the core and combines with a return spring 32 to form a dynamic limiting system. The supporting module ensures the smoothness of discharging through a spring floating structure. Each module works together effectively to solve problems such as swinging and uneven wear in the polishing of workpieces of multiple specifications, and significantly improves the processing quality and production efficiency.

[0036] Furthermore, as Figures 1 to 3As shown, the active polishing wheel 2 is engaged and rotatably connected between the upper ends of two supports 3. Sliding connections are provided at the lower-middle parts of the two supports 3 with two slide plates 8. The driven polishing wheel 5 is engaged and rotatably connected between the two slide plates 8. At the upper side of one side of the support 3, a first servo motor 4 is provided. The output end of the first servo motor 4 is fixedly connected to the active polishing wheel 2 for driving the active polishing wheel 2 to rotate. One ends of the active polishing wheel 2 and the driven polishing wheel 5 respectively penetrate through the support 3 and the slide plate 8 via a transmission shaft and are fixedly connected with a transmission belt pulley 12. An outer transmission belt is sleeved on the two transmission belt pulleys 12. On the outer side of one side wall of the support 3, a connecting rod 39 is rotatably connected. On the outer side of the lower end of the connecting rod 39, a follower belt pulley 14 is rotatably connected. The belt sleeved and connected to the outer sides of the two transmission belt pulleys 12 is also sleeved on the outer side of the follower belt pulley 14. In the middle of one side end face of the connecting rod 39, a telescopic spring 13 is fixedly connected. One end of the telescopic spring 13 away from the connecting rod 39 is fixedly connected to the support 3. At the outer lower ends of one side end faces of the two slide plates 8, two top plates 6 are fixedly connected. At the lower ends of the two top plates 6, two buffer spring seats 7 are fixedly connected. At the lower ends of the two buffer spring seats 7, they are fixedly connected to the workbench 1;

[0037] The output end of the first servo motor 4 drives the active polishing wheel 2 to stably rotate between the two supports 3. The active polishing wheel 2 drives the transmission belt pulley 12 at one of its ends to rotate synchronously via the transmission shaft, and transmits the power to the transmission belt pulley 12 at one end of the driven polishing wheel 5 through the belt, thereby driving the driven polishing wheel 5 to rotate. The polishing assembly is designed as a structure with adjustable spacing. The driven polishing wheel 5 is installed on the two slide plates 8, and the slide plates 8 can slide along the middle part of the support 3, so as to adjust the distance between the active polishing wheel 2 and the driven polishing wheel 5 to adapt to the TV bases of different heights. During the adjustment process, the connecting rod 39 drives the follower belt pulley 14 to move by rotation. The follower belt pulley 14 and the transmission belt pulley 12 work together to always keep the belt in a proper tension state, ensuring the stability of power transmission. At the same time, the structures of the top plate 6 and the buffer spring seat 7 on one side of the slide plate 8 can provide buffering when the driven polishing wheel 5 moves, reducing vibration and impact, and further ensuring the smooth operation of the polishing assembly. The push plate 15 slides on the variable guide block 19, and pushes the TV base between the active polishing wheel 2 and the driven polishing wheel 5 to achieve efficient and stable polishing and grinding.

[0038] Further, as Figure 1 、 Figure 5 、 Figure 7As shown, a pushing module is provided on one side of the upper end of the workbench 1, and the pushing module is used to push the push plate 15 to slide on the variable guide block 19. The pushing module includes two bearing seats 28, and a screw 29 is connected between the two bearing seats 28 for engagement and rotation. A second servo motor 30 is provided on the upper end of one side of the bearing seat 28, and the output end of the second servo motor 30 is fixedly connected to the screw 29. The external transmission of the screw 29 is connected to a slide seat 27, and the lower end of the slide seat 27 is slidably connected to the workbench 1. The support of the slide seat 27 is A push rod 26 is fixedly connected to one side of the push plate 15, and an arc block 37 is fixedly connected to the middle of one end surface of the push plate 15. The middle of the outer wall of the arc block 37 is at the same height as the axis of the push rod 26. A push block 36 is fixedly connected to the upper end of the end surface of the side of the push plate 15 close to the support 3. The side of the push block 36 close to the support 3 is recessed inwardly. A tension spring 21 is fixedly connected to the inner side wall of the side of the variable guide block 19 close to the fixed slot block 20. The end of the tension spring 21 away from the fixed slot block 20 is fixedly connected to the push plate 15;

[0039] The second servo motor 30 in the pushing module serves as a power source, and its output end drives the screw 29 to rotate stably between the two bearing seats 28. The screw 29 converts the rotational motion into the linear motion of the slide 27 through thread transmission, so that the slide 27 slides smoothly along the surface of the workbench 1. When the slide 27 moves, the push rod 26 on its side moves synchronously. The end of the push rod 26 contacts the arc block 37 on the side of the push plate 15. Since the middle of the outer wall of the arc block 37 is highly consistent with the axis of the push rod 26, it is ensured that the push rod 26 can accurately push the push plate 15. Under the action of the push rod 26, the push plate 15 slides along the variable guide block 19, and the push block 36 on the other side thereof One end of the recessed design contacts the base of the TV, pushing the base between the active polishing wheel 2 and the driven polishing wheel 5. The recessed design makes it difficult for the TV base to be displaced on the push block 36 when pushed. When the slide 27 needs to be reset, the second servo motor 30 rotates in the opposite direction, and the screw 29 drives the slide 27 to retreat, and the push rod 26 disengages from the arc block 37. At this time, the tension spring 21 in the variable guide block 19 contracts, pulling the push plate 15 back to the initial position, preparing for the next push. The entire process is driven by the screw 29 to achieve precise displacement control, and cooperates with the spring reset mechanism to ensure the stability and continuity of the reciprocating motion of the push plate 15.

[0040] Further, such as Figure 5As shown in the figure, an adjustment module is provided on one side of the upper end of the workbench 1 away from the pushing module. The adjustment module is used to adjust the deformation amount of the variable guide block 19. The adjustment module includes a support seat 16 fixedly connected to the upper end surface of the workbench 1. A threaded rod 17 is threadedly connected to the upper end of the support seat 16. One end of the threaded rod 17 is fixedly connected to a turntable. One side of the upper end of the movable groove block 22 is fixedly connected to a pressing plate 18. The end of the threaded rod 17 away from the turntable is in contact with the pressing plate 18. A fixed seat 25 is fixedly connected to one end of the workbench 1 where the sliding groove 23 is located. One side end face of the fixed seat 25 is fixedly connected to a pulling-back spring 24. The end of the pulling-back spring 24 away from the fixed seat 25 is fixedly connected to the movable groove block 22;

[0041] The working principle of the adjustment module is as follows: The operator drives the threaded rod 17 to move horizontally on the support seat 16 by rotating the turntable. After the end of the threaded rod 17 contacts the pressing plate 18, it pushes the pressing plate 18 and the connected movable groove block 22 to move along the sliding groove 23. When the movable groove block 22 moves, it squeezes or releases the variable guide block 19, causing it to deform to adjust the bending degree of the guide path. The variable guide block 19 is made of an elastic material, ensuring that it can deform and bend, thereby changing the trajectory angle when the push plate 15 slides; When resetting is required, rotate the turntable in the reverse direction to retract the threaded rod 17. The pulling-back spring 24 provides a reverse pulling force through the fixed seat 25 to pull the movable groove block 22 back to the initial position, ensuring that the variable guide block 19 returns to its original shape and realizing precise adjustment and stable reset of the guide path.

[0042] Furthermore, as Figure 4 、 Figure 6 shown in the figure, a positioning module is provided between the active polishing wheel 2 and the driven polishing wheel 5. The positioning module is used to limit the position of the TV base between the active polishing wheel 2 and the driven polishing wheel 5. The positioning assembly includes two second sleeve rods 31 respectively fixedly connected to the middle parts of the inner walls of the two supports 3. Second sliding rods 33 are slidably connected to one ends of the two second sleeve rods 31 close to each other. Rotating seats 34 are fixedly connected to one sides of the two second sliding rods 33 away from the second sleeve rods 31. One ends of the two rotating seats 34 are rotatably connected to rollers 35. A reset spring 32 is arranged inside the second sleeve rod 31. The two ends of the reset spring 32 are respectively fixedly connected to the second sleeve rod 31 and the second sliding rod 33;

[0043] When the TV base is pushed between the active polishing wheel 2 and the driven polishing wheel 5, the second sleeve rods 31 on the inner walls of the two side supports 3, under the elastic force of the internal return spring 32, push the second sliding rods 33 to extend towards the middle, making the rollers 35 on the rotating seats 34 closely adhere to the two side edges of the base. The return spring 32 continuously provides an inward pre-tightening force, enabling the rollers 35 to always maintain the contact pressure with the base, forming a two-way clamping effect, thereby restricting the horizontal shaking of the base during the grinding process. When the base has a tendency to shift in position due to the pushing of the push plate 15, the rollers 35 rotate to adapt to the small displacement of the base. At the same time, the second sliding rods 33 slide within the second sleeve rods 31 to compress the return spring 32, and the impact energy is absorbed through the spring deformation, ensuring that the base is always limited within the predetermined grinding area and maintaining the grinding stability.

[0044] Further, as Figure 1 , Figure 8 shown, on one side of the middle part of the upper end of the workbench 1 away from the push plate 15, a support module is provided. The support module is used to support the polished TV base. The support module includes a first sleeve rod 9 fixedly connected to the workbench 1. Inside the first sleeve rod 9, a connecting spring 38 is fixedly connected. The upper end of the connecting spring 38 is fixedly connected to a first sliding rod 10. The first sliding rod 10 is slidably connected to the upper end of the first sleeve rod 9. The upper end of the first sliding rod 10 is fixedly connected to a support block 11. The upper end of the support block 11 is in contact with the TV base.

[0045] When the polished TV base is pushed above the support module, the support block 11 first contacts the bottom of the base. As the base continues to move, the support block 11 transfers the pressure to the connecting spring 38 inside the first sleeve rod 9 through the first sliding rod 10. After being compressed, the connecting spring 38 undergoes elastic deformation, causing the first sliding rod 10 to slide downward along the inner wall of the first sleeve rod 9, automatically adjusting the height of the support block 11 to adapt to the bottom contour of the base. At the same time, the rebounding force of the spring always lifts the base upward, forming a flexible support effect. This design can effectively absorb the possible small position deviations or the tendency of gravitational sagging after the base is polished, ensuring that the base remains in a horizontal stable state after completely leaving the polishing area, and avoiding the base from tilting, slipping or surface damage due to insufficient support, providing a reliable workpiece positioning basis for subsequent processes.

[0046] Those of ordinary skill in the art should understand that the discussion of any above embodiment is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0047] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A polishing machine tool for the production of a TV set base, characterized in that: It includes a workbench (1). At both ends on one side of the middle part of the upper end surface of the workbench (1), supports (3) are fixedly connected. A polishing assembly is arranged between the two supports (3). The polishing assembly includes a driving polishing wheel (2) and a driven polishing wheel (5). The polishing assembly is used for grinding the TV base. A deformable variable guide block (19) is arranged on one side of the middle part of the upper end surface of the workbench (1). A fixed groove block (20) is sleeved outside one end of the variable guide block (19) away from the support (3). The lower end of the fixed groove block (20) is fixedly connected to the workbench (1). An activity groove block (22) is sleeved on one end of the variable guide block (19) away from the fixed groove block (20). An arc-shaped sliding groove (23) is formed on one side of the middle part of the upper end surface of the workbench (1). The lower end of the activity groove block (22) is slidably connected in the sliding groove (23). A push plate (15) is slidably connected to the variable guide block (19). The push plate (15) slides on the variable guide block (19) to push the TV base through between the driving polishing wheel (2) and the driven polishing wheel (5).

2. The polishing machine tool for the production of a TV set base according to claim 1, characterized in that: The driving polishing wheel (2) is snap-fitted and rotatably connected between the upper ends of the two supports (3). Sliding plates (8) are slidably connected to the lower parts near the middle of the two supports (3). The driven polishing wheel (5) is snap-fitted and rotatably connected between the two sliding plates (8). A first servo motor (4) is arranged at the upper part on one side of one support (3). The output end of the first servo motor (4) is fixedly connected to the driving polishing wheel (2) to drive the driving polishing wheel (2) to rotate. One ends of the driving polishing wheel (2) and the driven polishing wheel (5) respectively penetrate through the support (3) and the sliding plate (8) through transmission shafts and are fixedly connected with transmission toothed belt wheels (12). A toothed belt is sleeved outside the two transmission toothed belt wheels (12) for transmission connection.

3. The polishing machine tool for the production of a TV set base according to claim 2, wherein: A connecting rod (39) is rotatably connected to the outer side of one side wall of one support (3). A follower toothed belt wheel (14) is rotatably connected to the outer side of the lower end of the connecting rod (39). The toothed belt sleeved outside the two transmission toothed belt wheels (12) for transmission connection is also sleeved outside the follower toothed belt wheel (14) for transmission connection. A telescopic spring (13) is fixedly connected to the middle part of one side end face of the connecting rod (39). One end of the telescopic spring (13) away from the connecting rod (39) is fixedly connected to the support (3).

4. A polishing machine tool for the production of a TV set base according to claim 3, characterized in that: Top plates (6) are fixedly connected to the outer sides of the lower parts of one side end faces of the two sliding plates (8). Buffer spring seats (7) are fixedly connected to the lower ends of the two top plates (6). The lower ends of the two buffer spring seats (7) are fixedly connected to the workbench (1).

5. A polishing machine tool for the production of a TV set base according to claim 1, characterized in that: One side of the upper end of the workbench (1) is provided with a pushing module, and the pushing module is used to push the push plate (15) to slide on the variable guiding block (19). The pushing module includes two bearing seats (28), and a screw rod (29) is clamped and rotatably connected between the two bearing seats (28). The upper end of one of the bearing seats (28) is provided with a second servo motor (30), and the output end of the second servo motor (30) is fixedly connected to the screw rod (29). The outer part of the screw rod (29) is drivingly connected with a sliding seat (27), the lower end of the sliding seat (27) is slidably connected to the workbench (1), and one side of the sliding seat (27) close to the push plate (15) is fixedly connected with a push rod (26).

6. A polishing machine tool for the production of a TV set base according to claim 5, characterized in that: One side end face of the push plate (15) is fixedly connected with an arc-shaped block (37) in the middle, the middle of the outer wall of the arc-shaped block (37) is at the same height as the axis of the push rod (26), and the upper end of the side end face of the push plate (15) close to the support (3) is fixedly connected with a push block (36), and one side of the push block (36) close to the support (3) is recessed inward.

7. A polishing machine tool for the production of a TV base according to claim 6, characterized in that: One side inner wall of the variable guiding block (19) close to the fixed groove block (20) is fixedly connected with a tension spring (21), and one end of the tension spring (21) away from the fixed groove block (20) is fixedly connected to the push plate (15).

8. A polishing machine tool for the production of a TV set base according to claim 1, characterized in that: One side of the upper end of the workbench (1) far from the pushing module is provided with an adjusting module, and the adjusting module is used to adjust the deformation amount of the variable guiding block (19). The adjusting module includes a support seat (16) fixedly connected to the upper end face of the workbench (1), a threaded rod (17) is threadedly connected to the upper end of the support seat (16), one end of the threaded rod (17) is fixedly connected with a turntable, one side of the upper end of the movable groove block (22) is fixedly connected with a pressing plate (18), and the end of the threaded rod (17) away from the turntable is in contact with the pressing plate (18). One end of the sliding groove (23) on the workbench (1) is fixedly connected with a fixed seat (25), and one side end face of the fixed seat (25) is fixedly connected with a pulling-back spring (24), and one end of the pulling-back spring (24) away from the fixed seat (25) is fixedly connected to the movable groove block (22).

9. A polishing machine tool for the production of a TV set base according to claim 1, characterized in that: A positioning module is arranged between the active polishing wheel (2) and the driven polishing wheel (5), and the positioning module is used to limit the position of the TV base between the active polishing wheel (2) and the driven polishing wheel (5). The positioning assembly includes two second sleeve rods (31) respectively fixedly connected to the middle parts of the inner walls of the two supports (3). One end of each of the two second sleeve rods (31) close to each other is slidably connected with a second sliding rod (33). One side of each of the two second sliding rods (33) away from the second sleeve rod (31) is fixedly connected with a rotating seat (34). One end of each of the two rotating seats (34) is rotatably connected with a roller (35). A reset spring (32) is arranged inside the second sleeve rod (31), and both ends of the reset spring (32) are fixedly connected to the second sleeve rod (31) and the second sliding rod (33) respectively.

10. A polishing machine tool for the production of a TV set base according to claim 1, characterized in that: On one side of the middle part of the upper end of the workbench (1) far from the push plate (15), a support module is provided. The support module is used to support the polished TV base. The support module includes a first sleeve rod (9) fixedly connected to the workbench (1). A connecting spring (38) is fixedly connected inside the first sleeve rod (9). The upper end of the connecting spring (38) is fixedly connected to a first sliding rod (10). The first sliding rod (10) is slidably connected to the upper end of the first sleeve rod (9). The upper end of the first sliding rod (10) is fixedly connected to a support block (11). The upper end of the support block (11) is in contact with the TV base.

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