Surface treatment equipment for casting and use method of surface treatment equipment

Abstract

The invention belongs to the technical field of grinding and polishing, and particularly discloses casting surface treatment equipment and a using method thereof.The casting surface treatment equipment comprises a double-shaft synchronous driving assembly, polishing belt self-adaptive adjusting assemblies, a part clamping mechanism and an axial feeding mechanism, and the polishing belt self-adaptive adjusting assemblies are symmetrically arranged on the double-shaft synchronous driving assembly. According to the polishing belt self-adaptive adjusting assembly, the polishing belt winding reel wound with the winding type polishing belt is automatically and temporarily unlocked at the specific position where the polishing belt self-adaptive adjusting assembly is not stressed when the frame type lifting frame slides in a reciprocating mode, and the length of the winding type polishing belt is automatically adjusted through a pre-tightening torsional spring; and after the frame type lifting frame leaves the position, the length of the winding type polishing belt can be locked again.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding and polishing, and specifically refers to a surface treatment device for castings and a use method thereof. Background Art

[0002] The surface of cast metal parts is usually rough, especially those made with sand molds, wax molds, etc. The surface of the parts often needs secondary processing, the most common of which is surface grinding and polishing.

[0003] Although many parts have curved surfaces, they are not standard cylinders or even standard rotating bodies. This is the important reason why such parts are processed using casting technology rather than turning. For the surface polishing and grinding of such special-shaped curved parts, it is often a better choice to use a flexible polishing belt that fits the part better.

[0004] Since the diameters of such parts at different positions and angles and the unfolded lengths of the curved surfaces of the parts wrapped by the polishing tape vary, when the diameter of the part increases, the polishing tape may get stuck due to excessive tension, and when the diameter of the part decreases, the polishing tape will become loose, thus affecting the polishing effect. The material of the polishing tape itself and the gaps and deformations of other materials can only allow small changes in the diameter of the part, and cannot cope with working conditions that change too much. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a surface treatment device for castings and a method of using the same, which can automatically and timely adjust the length of the polishing belt; the curved surface of such parts generally does not show rapid step-like changes, so the unfolded length of the part wrapped by the polishing belt is actually continuous and slowly changing; based on this characteristic, the present invention proposes a technical solution that can automatically adjust the length of the wound polishing belt at a relatively high frequency and in a small amplitude during the reciprocating motion of the wound polishing belt. In order to achieve this technical goal, the present invention creatively proposes a polishing belt adaptive adjustment component, which automatically and temporarily unlocks the polishing belt winding reel wrapped with the wound polishing belt at a specific position where no force is applied when the frame lifting frame reciprocates, and automatically adjusts the length of the wound polishing belt by pre-tightening the torsion spring; and after the frame lifting frame leaves this position, the length of the wound polishing belt is locked again.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes a surface treatment equipment for castings and a method of using the same, comprising a dual-axis synchronous drive assembly, a polishing belt adaptive adjustment assembly, a part clamping mechanism and an axial feeding mechanism, wherein the polishing belt adaptive adjustment assembly is symmetrically arranged on the dual-axis synchronous drive assembly, the part clamping mechanism is arranged on the axial feeding mechanism, and the dual-axis synchronous drive assembly is arranged on the axial feeding mechanism.

[0007] Furthermore, the dual-axis synchronous drive assembly includes a slide plate, a motor base, a dual-axis motor and a lifting drive turntable, the slide plate is arranged on the axial feed mechanism, the motor base is arranged on the slide plate, the dual-axis motor is arranged on the motor base, the lifting drive turntable is fixedly connected to the output shaft of the dual-axis motor, and the lifting drive turntable is provided with a toggle slide shaft, and the toggle slide shafts on the two lifting drive turntables are distributed in opposite directions.

[0008] The polishing belt adaptive adjustment component can be driven by the dual-axis synchronous drive component, and the polishing belt adaptive adjustment component can be driven to perform reciprocating lifting and lowering motion through the rotational motion of the dual-axis synchronous drive component, thereby achieving relative friction between the wound polishing belt and the special-shaped part body, and then polishing the outer surface of the special-shaped part body. Through the relatively arranged toggle sliding shafts, the frame-type lifting frames on both sides can be alternately lifted and lowered, thereby keeping the tension of the wound polishing belt stable.

[0009] Furthermore, the polishing belt adaptive adjustment component includes a lifting guide component, a self-tightening winding component, a reel self-locking component and a reel automatic release component. The lifting guide component is symmetrically arranged on the dual-axis synchronous drive component, the self-tightening winding component is rotatably arranged in the lifting guide component, the reel self-locking component is slidably arranged on the lifting guide component, and the reel automatic release component is arranged between the lifting guide component and the reel self-locking component.

[0010] By alternately lifting and lowering the lifting guide assembly, the tension of the wound polishing belt can be kept stable during its movement. By automatically locking and unlocking the self-tightening winding assembly, the unfolded length of the wound polishing belt can be automatically adjusted once in each lifting cycle, so that the length of the wound polishing belt matches the external contour of the special-shaped part body, so that a certain extrusion pressure and friction force can be maintained between the wound polishing belt and the special-shaped part body, and the wound polishing belt will not get stuck due to excessive tension.

[0011] Preferably, the lifting guide assembly comprises a side panel, a lifting guide rail, a lifting slider and a frame-type lifting frame, the side panel is fixedly connected to the slider, the lifting guide rail is arranged on the side panel, the lifting slider is snap-fitted and slidably arranged on the lifting guide rail, the frame-type lifting frame is fixedly connected to the lifting slider, the frame-type lifting frame is provided with a strip slide groove, and the toggle slide shaft is snap-fitted and slidably arranged in the strip slide groove.

[0012] Through the sliding cooperation between the toggle slide shaft and the strip slide groove, the frame-type lifting frame can be lifted and lowered through the rotational movement of the toggle slide shaft, thereby causing the winding polishing belt to reciprocate.

[0013] As a further preferred embodiment of the present invention, the self-tightening winding assembly includes a polishing belt winding reel, a pre-tightening torsion spring and a wound polishing belt. The frame-type lifting frame is provided with a hinged circular hole, and the polishing belt winding reel is rotatably arranged in the hinged circular hole. Circular baffles are symmetrically arranged on the polishing belt winding reel. The pre-tightening torsion spring is sleeved on both ends of the polishing belt winding reel. One end of the pre-tightening torsion spring is fixedly connected to the circular baffle, and the other end of the pre-tightening torsion spring is fixedly connected to the frame-type lifting frame. The wound polishing belt is wound on the polishing belt winding reel.

[0014] Preferably, the reel self-locking assembly includes a locking platform and an unlocking spring. A sliding circular hole is also provided on the frame-type lifting frame. Guide slide rods are symmetrically provided on the locking platform. The guide slide rods are snap-fitted and slidably arranged in the sliding circular hole. A limiting tooth is provided on the circular baffle plate. Fixed teeth matching the limiting tooth are provided on the locking platform. The unlocking spring is sleeved on the guide slide rod. The unlocking spring is arranged between the frame-type lifting frame and the locking platform.

[0015] Under the elastic force of the pre-tightened torsion spring, the wound polishing belt tends to tighten in a stationary state. Therefore, the polishing belt winding reel can be temporarily unlocked at the top to adjust the length of the wound polishing belt once in each lifting and lowering movement cycle. Through small-amplitude, high-frequency adjustments, adaptive length control of the wound polishing belt can be achieved.

[0016] As a further preferred embodiment of the present invention, the automatic reel release assembly includes an L-shaped plate, a sliding plug plate, a return spring and an unlocking ejector pin, the L-shaped plate is fixedly connected to the frame-type lifting frame, the sliding plug plate is arranged between the L-shaped plate and the locking platform, the L-shaped plate is provided with a slope portion and a boss portion, the return spring is arranged between the sliding plug plate and the bottom plate of the L-shaped plate, the unlocking ejector pin is fixedly connected to the side plate, and the unlocking ejector pin is located above the sliding plug plate.

[0017] By sliding the sliding plug plate, the minimum distance between the locking platform and the frame lifting frame can be controlled, thereby controlling the locking and unlocking of the polishing tape winding reel. By unlocking the top pin and supporting the sliding plug plate, the polishing tape winding reel can be automatically temporarily unlocked when the frame lifting frame is at the top, and the locked state will be restored when the frame lifting frame descends.

[0018] Furthermore, the part clamping mechanism includes a clamping frame, a clamping support and a special-shaped part body, the clamping frame is arranged on the axial feed mechanism, the clamping support is arranged on the clamping frame, a three-jaw chuck is rotatably provided on the clamping support, and both ends of the special-shaped part body are clamped in the three-jaw chuck.

[0019] Furthermore, the axial feeding mechanism includes a main body bottom plate, a feeding guide rail and a feeding slider, the clamping machine is mounted on the main body bottom plate, the feeding guide rail is arranged on the main body bottom plate, the feeding slider is engaged and slidably arranged on the feeding guide rail, and the slide plate is arranged on the feeding slider.

[0020] Preferably, the axial feed mechanism also includes an adaptive linkage component, which includes a screw module, a pulley and a linkage belt. The screw module is arranged on the main body bottom plate, the sliding part of the screw module is fixedly connected to the slide plate, the screw module is provided with a screw main shaft, the pulley is clamped on the screw main shaft, and the pulley and the three-jaw chuck are connected by a linkage belt transmission.

[0021] Through the linkage of the linkage belt, the rotational movement of the slide plate can be controlled by the screw spindle, causing the body of the special-shaped part to rotate slowly. On the one hand, the structure is simplified, and on the other hand, the outer surface of the special-shaped part body can be fully polished through the slow rotation of the special-shaped part body and the axial slow sliding of the slide plate.

[0022] The present invention also discloses a method of use, which is characterized by comprising the following steps:

[0023] Step 1: Fix the special-shaped part body by a three-jaw chuck, move the polishing belt adaptive adjustment component to one end limit position, and make the winding polishing belt wrap the upper end of the special-shaped part body;

[0024] Step 2: Start the dual-axis motor, and the output shaft of the dual-axis motor drives the lifting drive turntables at both ends to rotate simultaneously. Since the toggle slide shaft slides in the strip slide groove, and the toggle slide shafts at both ends are arranged oppositely, the frame-type lifting frames on both sides will alternately lift and lower. In this motion mode, the winding polishing belt can maintain its own tension range;

[0025] Step 3: Then start the motor of the screw module. Through the rotation of the screw spindle, the slide plate can be driven to slide slowly toward the other end. On the other hand, through the transmission of the pulley and the linkage belt, the body of the special-shaped part can be driven to rotate slowly while the slide plate slides, thereby realizing the curved surface grinding treatment of the surface of the special-shaped part body by the winding polishing belt;

[0026] Step 4: Since the diameter of the special-shaped part body is not constant, and is not even a standard rotating body, the required length of the wound polishing tape is also changing during the rotation of the screw spindle. When the frame-type lifting frame slides to the top, the sliding plug plate will slide against it through the unlocking pin. At this time, the blocking of the sliding plug plate is lost, and the locking platform will move away from the polishing tape winding reel under the elastic force of the unlocking tension spring. At this time, the fixed teeth and the limiting teeth are separated and the polishing tape winding reel is unlocked. After unlocking, the polishing tape winding reel can automatically adjust its own length under the elastic force of the pre-tightening torsion spring.

[0027] Step 5: In the gap between the two adjustments, if the unfolded length of the upper surface of the special-shaped part body changes, the elastic expansion and contraction of the wound polishing belt itself can compensate for this change; when the frame-type lifting frame is descending, the sliding plug plate is reset to the boss portion along the slope portion under the elastic force of the reset spring, and the fixed teeth on the locking platform are combined with the limit teeth again through the top support of the sliding plug plate, thereby completing the locking of the polishing belt winding reel;

[0028] By means of small-amplitude and high-frequency automatic adjustment combined with the small-amplitude elastic expansion and contraction of the wound polishing belt itself, adaptive adjustment of the length of the wound polishing belt can be achieved.

[0029] The beneficial effects achieved by the present invention using the above structure are as follows:

[0030] (1) The polishing belt adaptive adjustment component can be driven by a dual-axis synchronous drive component. The rotational movement of the dual-axis synchronous drive component can drive the polishing belt adaptive adjustment component to perform reciprocating lifting and lowering movements, thereby achieving relative friction between the wound polishing belt and the special-shaped part body, and then polishing the outer surface of the special-shaped part body. By relatively arranged sliding shafts, the frame-type lifting frames on both sides can be alternately lifted and lowered, thereby keeping the tension of the wound polishing belt stable.

[0031] (2) By alternately lifting and lowering the lifting guide assembly, the tension of the wound polishing belt can be kept stable during its movement. By automatically locking and unlocking the self-tightening winding assembly, the unfolded length of the wound polishing belt can be automatically adjusted once in each lifting cycle, so that the length of the wound polishing belt matches the external contour of the special-shaped part body, so that a certain extrusion pressure and friction force can be maintained between the wound polishing belt and the special-shaped part body, and the wound polishing belt will not get stuck due to excessive tension.

[0032] (3) Through the sliding cooperation between the toggle slide shaft and the strip slide groove, the frame-type lifting frame can be lifted and lowered through the rotational movement of the toggle slide shaft, thereby causing the wound polishing belt to reciprocate.

[0033] (4) Under the elastic force of the pre-tightening torsion spring, the wound polishing belt has a tendency to tighten in a stationary state. Therefore, the polishing belt winding reel can be temporarily unlocked at the top to adjust the length of the wound polishing belt once in each lifting and lowering movement cycle. Through small-amplitude, high-frequency adjustments, adaptive length control of the wound polishing belt can be achieved.

[0034] (5) By sliding the sliding plug plate, the minimum distance between the locking platform and the frame lifting frame can be controlled, thereby controlling the locking and unlocking of the polishing tape winding reel. By unlocking the top pin to support the sliding plug plate, the polishing tape winding reel can be automatically temporarily unlocked when the frame lifting frame is at the top, and the locked state will be restored when the frame lifting frame descends.

[0035] (6) Through the linkage of the linkage belt, the rotational movement of the slide plate can be controlled by the screw spindle, causing the body of the special-shaped part to rotate slowly. On the one hand, the structure is simplified. On the other hand, through the slow rotation of the body of the special-shaped part and the axial slow sliding of the slide plate, the outer surface of the body of the special-shaped part can be fully polished. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A three-dimensional diagram of a surface treatment device for castings proposed by the present invention;

[0037] Figure 2 A front view of a surface treatment device for castings proposed by the present invention;

[0038] Figure 3 A left side view of a surface treatment device for castings proposed by the present invention;

[0039] Figure 4 A top view of a surface treatment device for castings proposed by the present invention;

[0040] Figure 5 for Figure 2 A cross-sectional view along the cutting line AA;

[0041] Figure 6 for Figure 3 A cross-sectional view along the cutting line BB;

[0042] Figure 7 for Figure 6 A cross-sectional view along the cutting line CC;

[0043] Figure 8 An exploded schematic diagram of a surface treatment device for castings proposed by the present invention;

[0044] Fig. 9 for Figure 6 A partial enlarged view of point Ⅰ in the middle;

[0045] Fig.10 for Figure 7 A partial enlarged view of the middle II;

[0046] Fig.11 for Figure 8 A partial enlarged view of point III in the middle.

[0047] Among them, 1. Dual-axis synchronous drive assembly, 2. Polishing belt adaptive adjustment assembly, 3. Part clamping mechanism, 4. Axial feeding mechanism, 5. Slide plate, 6. Motor base, 7. Dual-axis motor, 8. Lifting drive turntable, 9. Slide shaft, 10. Lifting guide assembly, 11. Self-tightening winding assembly, 12. Roll self-locking assembly, 13. Roll automatic release assembly, 14. Side plate, 15. Lifting guide rail, 16. Lifting slider, 17. Frame lifting frame, 18. Polishing belt winding reel, 19. Pre-tightening torsion spring, 20. Winding polishing belt, 21. Locking platform, 22. Unlocking tension spring, 23. L-shaped plate, 24. Sliding plug plate, 25. Reset spring, 26. Unlocking ejector pin, 27. Strip slide, 28. Articulated round hole, 29. Sliding round hole, 30. Round baffle, 31. Limiting tooth, 32. Guide slide bar, 33. Fixed tooth, 34. Slope part, 35. Boss part, 36. Clamping frame, 37. Clamping support, 38. Special-shaped part body, 39. Three-jaw chuck, 40. Main body bottom plate, 41. Feed guide rail, 42. Feed slider, 43. Screw module, 44. Adaptive linkage assembly, 45. Screw spindle, 46. Pulley, 47. Linkage belt.

[0048] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0051] like Figure 1 to Figure 11 As shown, the present invention proposes a surface treatment device for castings and a method of using the same, comprising a dual-axis synchronous drive component 1, a polishing belt adaptive adjustment component 2, a part clamping mechanism 3 and an axial feeding mechanism 4, the polishing belt adaptive adjustment component 2 is symmetrically arranged on the dual-axis synchronous drive component 1, the part clamping mechanism 3 is arranged on the axial feeding mechanism 4, and the dual-axis synchronous drive component 1 is arranged on the axial feeding mechanism 4.

[0052] The axial feeding mechanism 4 includes a main body bottom plate 40, a feeding guide rail 41 and a feeding slider 42. The clamping frame 36 is arranged on the main body bottom plate 40, the feeding guide rail 41 is arranged on the main body bottom plate 40, the feeding slider 42 is engaged and slidably arranged on the feeding guide rail 41, and the slide plate 5 is arranged on the feeding slider 42.

[0053] The axial feed mechanism 4 also includes an adaptive linkage component 44, which includes a screw module 43, a pulley 46 and a linkage belt 47. The screw module 43 is arranged on the main body bottom plate 40, and the sliding part of the screw module 43 is fixedly connected to the slide plate 5. A screw spindle 45 is provided on the screw module 43, and a pulley 46 is engaged with the screw spindle 45. The pulley 46 and the three-jaw chuck 39 are connected through a linkage belt 47.

[0054] Through the linkage of the linkage belt 47, the rotational movement of the slide plate 5 during sliding can be controlled by the screw spindle 45, and the special-shaped part body 38 can be slowly rotated. On the one hand, the structure is simplified, and on the other hand, the outer surface of the special-shaped part body 38 can be fully polished through the slow rotation of the special-shaped part body 38 and the axial slow sliding of the slide plate 5.

[0055] The part clamping mechanism 3 includes a clamping frame 36, a clamping support 37 and a special-shaped part body 38. The clamping frame 36 is arranged on the axial feeding mechanism 4, and the clamping support 37 is arranged on the clamping frame 36. A three-jaw chuck 39 is rotatably provided on the clamping support 37, and both ends of the special-shaped part body 38 are clamped in the three-jaw chuck 39.

[0056] The dual-axis synchronous drive assembly 1 includes a slide plate 5, a motor base 6, a dual-axis motor 7 and a lifting drive turntable 8. The slide plate 5 is arranged on the axial feed mechanism 4, the motor base 6 is arranged on the slide plate 5, the dual-axis motor 7 is arranged on the motor base 6, the lifting drive turntable 8 is fixedly connected to the output shaft of the dual-axis motor 7, and the lifting drive turntable 8 is provided with a toggle slide shaft 9. The toggle slide shafts 9 on the two lifting drive turntables 8 are distributed in opposite directions.

[0057] The polishing belt adaptive adjustment component 2 can be driven by the dual-axis synchronous drive component 1. The rotational movement of the dual-axis synchronous drive component 1 can drive the polishing belt adaptive adjustment component 2 to perform reciprocating lifting and lowering movement, thereby achieving relative friction between the wound polishing belt 20 and the special-shaped part body 38, and then polishing the outer surface of the special-shaped part body 38. By relatively setting the sliding shafts 9, the frame-type lifting frames 17 on both sides can be alternately lifted and lowered, so that the tension of the wound polishing belt 20 remains stable.

[0058] The polishing belt adaptive adjustment component 2 includes a lifting guide component 10, a self-tightening winding component 11, a reel self-locking component 12 and a reel automatic release component 13. The lifting guide component 10 is symmetrically arranged on the dual-axis synchronous drive component 1, the self-tightening winding component 11 is rotatably arranged in the lifting guide component 10, the reel self-locking component 12 is slidably arranged on the lifting guide component 10, and the reel automatic release component 13 is arranged between the lifting guide component 10 and the reel self-locking component 12.

[0059] By alternately lifting and lowering the lifting guide assembly 10, the tension of the wound polishing belt 20 can be kept stable during its movement. By automatically locking and unlocking the self-tightening winding assembly 11, the unfolded length of the wound polishing belt 20 can be automatically adjusted once in each lifting cycle, so that the length of the wound polishing belt 20 matches the outer contour of the special-shaped part body 38, so that a certain extrusion pressure and friction force can be maintained between the wound polishing belt 20 and the special-shaped part body 38, and the wound polishing belt 20 and the special-shaped part body 38 will not get stuck due to excessive tension.

[0060] The lifting guide assembly 10 includes a side plate 14, a lifting guide rail 15, a lifting slider 16 and a frame-type lifting frame 17. The side plate 14 is fixedly connected to the slide plate 5, the lifting guide rail 15 is arranged on the side plate 14, the lifting slider 16 is engaged and slidably arranged on the lifting guide rail 15, the frame-type lifting frame 17 is fixedly connected to the lifting slider 16, and the frame-type lifting frame 17 is provided with a strip slide groove 27, and the toggle slide shaft 9 is engaged and slidably arranged in the strip slide groove 27.

[0061] Through the sliding cooperation between the sliding shaft 9 and the strip sliding groove 27, the frame-type lifting frame 17 can be lifted and lowered by the rotational movement of the sliding shaft 9, thereby causing the winding polishing belt 20 to reciprocate.

[0062] The self-tightening winding assembly 11 includes a polishing belt winding reel 18, a pre-tightening torsion spring 19 and a wound polishing belt 20. A hinged circular hole 28 is provided on the frame-type lifting frame 17. The polishing belt winding reel 18 is rotatably arranged in the hinged circular hole 28. Circular baffles 30 are symmetrically arranged on the polishing belt winding reel 18. The pre-tightening torsion spring 19 is sleeved on both ends of the polishing belt winding reel 18. One end of the pre-tightening torsion spring 19 is fixedly connected to the circular baffle 30, and the other end of the pre-tightening torsion spring 19 is fixedly connected to the frame-type lifting frame 17. The wound polishing belt 20 is wound on the polishing belt winding reel 18.

[0063] The reel self-locking assembly 12 includes a locking platform 21 and an unlocking spring 22. A sliding circular hole 29 is also provided on the frame-type lifting frame 17. A guide slide bar 32 is symmetrically provided on the locking platform 21. The guide slide bar 32 is engaged and slidably arranged in the sliding circular hole 29. A limiting tooth 31 is provided on the circular baffle 30. A fixed tooth 33 matching the limiting tooth 31 is provided on the locking platform 21. The unlocking spring 22 is sleeved on the guide slide bar 32. The unlocking spring 22 is arranged between the frame-type lifting frame 17 and the locking platform 21.

[0064] Under the elastic force of the pre-tightening torsion spring 19, the wound polishing belt 20 has a tendency to tighten in a stationary state. Therefore, the polishing belt winding reel 18 can be temporarily unlocked at the top to adjust the length of the wound polishing belt 20 once in each lifting and lowering movement cycle. Through small-amplitude, high-frequency adjustments, adaptive length control of the wound polishing belt 20 can be achieved.

[0065] The automatic reel release assembly 13 includes an L-shaped plate 23, a sliding plug plate 24, a return spring 25 and an unlocking ejector pin 26. The L-shaped plate 23 is fixedly connected to the frame-type lifting frame 17. The sliding plug plate 24 is arranged between the L-shaped plate 23 and the locking platform 21. The L-shaped plate 23 is provided with a slope portion 34 and a boss portion 35. The return spring 25 is arranged between the sliding plug plate 24 and the bottom plate of the L-shaped plate 23. The unlocking ejector pin 26 is fixedly connected to the side plate 14. The unlocking ejector pin 26 is located above the sliding plug plate 24.

[0066] By sliding the sliding plug plate 24, the minimum distance between the locking platform 21 and the frame lifting frame 17 can be controlled, thereby controlling the locking and unlocking of the polishing tape winding reel 18. By unlocking the push pin 26 to support the sliding plug plate 24, the polishing tape winding reel 18 can be automatically temporarily unlocked when the frame lifting frame 17 is at the top, and the locked state will be restored when the frame lifting frame 17 descends.

[0067] When in use, the user first needs to fix the special-shaped part body 38 through the three-jaw chuck 39, move the polishing belt adaptive adjustment component 2 to the extreme position at one end, and make the winding polishing belt 20 wrap the upper end of the special-shaped part body 38;

[0068] Start the dual-axis motor 7, and the output shaft of the dual-axis motor 7 drives the lifting drive turntables 8 at both ends to rotate simultaneously. Since the toggle slide shaft 9 slides in the strip slide groove 27, and the toggle slide shafts 9 at both ends are arranged opposite to each other, the frame-type lifting frames 17 on both sides will alternately lift and lower. In this movement mode, the winding polishing belt 20 can maintain its own tension amplitude.

[0069] Then, the motor of the screw module 43 is started. The rotation of the screw main shaft 45 can drive the slide plate 5 to slide slowly toward the other end. On the other hand, the transmission of the pulley 46 and the linkage belt 47 can also drive the special-shaped part body 38 to rotate slowly while the slide plate 5 slides, thereby realizing the curved surface grinding treatment of the surface of the special-shaped part body 38 by the winding polishing belt 20.

[0070] Since the diameter of the special-shaped part body 38 is not constant, and is not even a standard rotating body, the required length of the wound polishing belt 20 also changes during the rotation of the screw spindle 45. When the frame-type lifting frame 17 slides to the top, the sliding plug plate 24 will be pushed and slid by the unlocking pin 26. At this time, the sliding plug plate 24 is no longer blocked, and the locking platform 21 will move away from the polishing belt winding reel 18 under the elastic force of the unlocking tension spring 22. At this time, the fixed teeth 33 and the limiting teeth 31 are separated and the polishing belt winding reel 18 is unlocked. The unlocked polishing belt winding reel 18 can automatically adjust its own length under the elastic force of the pre-tightening torsion spring 19.

[0071] In the gap between the two adjustments, if the unfolded length of the upper surface of the special-shaped part body 38 changes, the elastic expansion and contraction of the wound polishing belt 20 itself can compensate for this change; when the frame-type lifting frame 17 is descending, the sliding plug plate 24 is reset to the boss portion 35 along the slope portion 34 under the elastic force of the reset spring 25, and the fixed teeth 33 on the locking platform 21 are combined with the limiting teeth 31 again through the support of the sliding plug plate 24, thereby completing the locking of the polishing belt winding reel 18;

[0072] By means of small-amplitude high-frequency automatic adjustment combined with the small-amplitude elastic expansion and contraction of the wound polishing belt 20 itself, adaptive adjustment of the length of the wound polishing belt 20 can be achieved.

[0073] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0074] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A surface treatment device for castings, characterized in that: The invention comprises a dual-axis synchronous drive component (1), a polishing belt self-adjusting component (2), a part clamping mechanism (3) and an axial feeding mechanism (4), wherein the polishing belt self-adjusting component (2) is symmetrically arranged on the dual-axis synchronous drive component (1), the part clamping mechanism (3) is arranged on the axial feeding mechanism (4), and the dual-axis synchronous drive component (1) is arranged on the axial feeding mechanism (4); The polishing belt self-adaptive adjustment component (2) comprises a lifting guide component (10), a self-tightening winding component (11), a reel self-locking component (12) and a reel automatic releasing component (13); the lifting guide component (10) is symmetrically arranged on the dual-axis synchronous driving component (1); the self-tightening winding component (11) is rotatably arranged in the lifting guide component (10); the reel self-locking component (12) is slidably arranged on the lifting guide component (10); and the reel automatic releasing component (13) is arranged between the lifting guide component (10) and the reel self-locking component (12).

2. A surface treatment device for castings according to claim 1, characterized in that: The dual-axis synchronous drive assembly (1) comprises a slide plate (5), a motor base (6), a dual-axis motor (7) and a lifting drive turntable (8), wherein the slide plate (5) is arranged on the axial feed mechanism (4), the motor base (6) is arranged on the slide plate (5), the dual-axis motor (7) is arranged on the motor base (6), the lifting drive turntable (8) is fixedly connected to the output shaft of the dual-axis motor (7), and the lifting drive turntable (8) is provided with a toggle slide shaft (9), and the toggle slide shafts (9) on the two lifting drive turntables (8) are arranged in opposite directions.

3. A surface treatment device for castings according to claim 2, characterized in that: The lifting guide assembly (10) comprises a side plate (14), a lifting guide rail (15), a lifting slider (16) and a frame-type lifting frame (17); the side plate (14) is fixedly connected to the slide plate (5); the lifting guide rail (15) is arranged on the side plate (14); the lifting slider (16) is slidably arranged on the lifting guide rail (15); the frame-type lifting frame (17) is fixedly connected to the lifting slider (16); a strip-shaped slide groove (27) is arranged on the frame-type lifting frame (17); and the toggle slide shaft (9) is slidably arranged in the strip-shaped slide groove (27).

4. The surface treatment equipment for castings according to claim 3, characterized in that: The self-tightening winding assembly (11) comprises a polishing belt winding reel (18), a pre-tightening torsion spring (19) and a wound polishing belt (20); the frame-type lifting frame (17) is provided with a hinged circular hole (28); the polishing belt winding reel (18) is rotatably arranged in the hinged circular hole (28); a circular baffle (30) is symmetrically arranged on the polishing belt winding reel (18); the pre-tightening torsion spring (19) is sleeved on both ends of the polishing belt winding reel (18); one end of the pre-tightening torsion spring (19) is fixedly connected to the circular baffle (30); the other end of the pre-tightening torsion spring (19) is fixedly connected to the frame-type lifting frame (17); and the wound polishing belt (20) is wound on the polishing belt winding reel (18).

5. The surface treatment equipment for castings according to claim 4, characterized in that: The reel self-locking assembly (12) comprises a locking platform (21) and an unlocking tension spring (22); the frame-type lifting frame (17) is further provided with a sliding circular hole (29); the locking platform (21) is symmetrically provided with a guide slide bar (32); the guide slide bar (32) is engaged and slidably arranged in the sliding circular hole (29); the circular baffle (30) is provided with a limiting tooth (31); the locking platform (21) is provided with a fixed tooth (33) matching the limiting tooth (31); the unlocking tension spring (22) is sleeved on the guide slide bar (32); and the unlocking tension spring (22) is arranged between the frame-type lifting frame (17) and the locking platform (21).

6. The surface treatment equipment for castings according to claim 5, characterized in that: The reel automatic release assembly (13) comprises an L-shaped plate (23), a sliding plug plate (24), a return spring (25) and an unlocking ejector pin (26); the L-shaped plate (23) is fixedly connected to a frame-type lifting frame (17); the sliding plug plate (24) is arranged between the L-shaped plate (23) and the locking platform (21); a slope portion (34) and a boss portion (35) are provided on the L-shaped plate (23); the return spring (25) is arranged between the sliding plug plate (24) and a bottom plate of the L-shaped plate (23); the unlocking ejector pin (26) is fixedly connected to the side plate (14); and the unlocking ejector pin (26) is located above the sliding plug plate (24).

7. The surface treatment equipment for castings according to claim 6, characterized in that: The part clamping mechanism (3) comprises a clamping frame (36), a clamping support (37) and a special-shaped part body (38); the clamping frame (36) is arranged on the axial feeding mechanism (4); the clamping support (37) is arranged on the clamping frame (36); a three-jaw chuck (39) is rotatably arranged on the clamping support (37); and two ends of the special-shaped part body (38) are clamped in the three-jaw chuck (39).

8. The surface treatment equipment for castings according to claim 7, characterized in that: The axial feeding mechanism (4) comprises a main body bottom plate (40), a feeding guide rail (41) and a feeding slider (42); the clamping frame (36) is arranged on the main body bottom plate (40); the feeding guide rail (41) is arranged on the main body bottom plate (40); the feeding slider (42) is slidably arranged on the feeding guide rail (41); and the slide plate (5) is arranged on the feeding slider (42).

9. The surface treatment equipment for castings according to claim 8, characterized in that: The axial feeding mechanism (4) further comprises an adaptive linkage component (44), the adaptive linkage component (44) comprising a screw module (43), a pulley (46) and a linkage belt (47), the screw module (43) being arranged on the main body bottom plate (40), the sliding portion of the screw module (43) being fixedly connected to the slide plate (5), the screw module (43) being provided with a screw main shaft (45), the pulley (46) being engaged with the screw main shaft (45), and the pulley (46) and the three-jaw chuck (39) being connected in transmission via a linkage belt (47).

10. The method for using the surface treatment equipment for castings according to claim 9, characterized in that: The steps include: Step 1: Fixing the special-shaped part body (38) by means of a three-jaw chuck (39), moving the polishing belt adaptive adjustment assembly (2) to an extreme position at one end, and wrapping the winding polishing belt (20) around the upper end of the special-shaped part body (38); Step 2: Start the dual-axis motor (7), and the output shaft of the dual-axis motor (7) drives the lifting drive turntables (8) at both ends to rotate simultaneously. Since the toggle slide shaft (9) slides in the strip slide groove (27), and the toggle slide shafts (9) at both ends are arranged in opposite directions, the frame-type lifting frames (17) on both sides will alternately move up and down. In this movement mode, the winding polishing belt (20) can maintain its own tension range; Step 3: Then, the motor of the screw module (43) is started. The rotation of the screw main shaft (45) can drive the slide plate (5) to slide slowly toward the other end. On the other hand, the transmission of the pulley (46) and the linkage belt (47) can also drive the special-shaped part body (38) to rotate slowly while the slide plate (5) slides, thereby achieving the curved surface grinding treatment of the surface of the special-shaped part body (38) by the winding polishing belt (20); Step 4: As the screw spindle (45) rotates, the required length of the wound polishing belt (20) also changes. When the frame-type lifting frame (17) slides to the top, the sliding plug plate (24) is pushed against the slide by the unlocking pin (26). At this time, the blocking of the sliding plug plate (24) is lost, and the locking platform (21) moves away from the polishing belt winding reel (18) under the elastic force of the unlocking tension spring (22). At this time, the fixed teeth (33) and the limiting teeth (31) are separated and the polishing belt winding reel (18) is unlocked. After being unlocked, the polishing belt winding reel (18) can automatically adjust its own length under the elastic force of the preloaded torsion spring (19); Step 5: In the gap between the two adjustments, if the unfolded length of the upper surface of the special-shaped part body (38) changes, the change can be compensated by the elastic expansion and contraction of the wound polishing belt (20) itself; when the frame-type lifting frame (17) is descending, the sliding plug plate (24) is reset to the boss portion (35) along the slope portion (34) under the elastic force of the reset spring (25), and the fixed teeth (33) on the locking platform (21) are combined with the limit teeth (31) again through the support of the sliding plug plate (24), thereby completing the locking of the polishing belt winding reel (18).

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