Pump body inner wall polishing equipment

Abstract

The utility model relates to the field of polishing equipment, in particular to pump body inner wall polishing equipment which comprises a bottom fixing mechanism used for fixing a pump body, a power mechanism used for providing polishing power and a lifting mechanism used for controlling the power mechanism to ascend and descend. The grinding mechanism is used for providing grinding power, and the follow-up adjusting mechanism is used for adjusting the grinding state of the grinding mechanism. Through the cooperation of the polishing mechanism and the follow-up adjusting mechanism, when the polishing cloth polishes the inner wall, if accidental burrs or protrusions occur, the follow-up adjusting mechanism can be used for promoting the rotating speed difference between the main power frame and the inner polishing frame, and therefore the polishing strength of the polishing block and the polishing cloth is adjusted; and then the small piece area is subjected to rapid deep grinding and polishing, rapid resetting after grinding and overall grinding, follow-up rework repair is avoided, the over-grinding phenomenon caused by long-time grinding is avoided, and therefore the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of polishing equipment, in particular to a polishing equipment for the inner wall of a pump body. Background Technique

[0002] The polishing equipment for the inner wall of a pump body is a special device that drives a polishing tool (such as a flexible grinding head, a polishing ball or abrasive flow) through mechanical transmission and a multi-directional adjustment system to precisely grind the complex inner cavity surface of the pump body. It usually integrates a high-frequency vibration mechanism, an angle adjustment component and an automatic control system, can adapt to the uniform polishing of inner walls with different curvatures, effectively remove burrs, oxide layers and improve the surface finish, and is widely used in the manufacturing and repair links of industrial pump bodies such as centrifugal pumps and chemical pumps. Its core advantage is to solve the polishing problem in areas that are difficult for manual access, and at the same time reduce defects such as orange peel and scratches through parameter optimization.

[0003] In the prior art, the Chinese utility model with the comparative announcement number CN203210163U discloses a polishing machine for the inner wall of a disc, which polishes the inner wall of a part by adjusting the angle of the polishing head. However, it is found in the use of such equipment that since the size of the grinding head is generally fixed, and the grinding head in the polishing process is generally of a soft structure, if the processing in the previous process is not thorough, sudden burrs or protrusions will be encountered during polishing. In the conventional treatment, a polishing and grinding head is used for a long time, but the long-time treatment will over-grind the area without burrs, thus affecting the grinding efficiency and quality. Content of the Utility Model

[0004] The purpose of the utility model is to provide a polishing equipment for the inner wall of a pump body to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A polishing equipment for the inner wall of a pump body includes a bottom fixing mechanism for fixing the pump body, a power mechanism for providing grinding power, and a lifting mechanism for controlling the lifting of the power mechanism. The power mechanism is fixedly connected to the lifting plate of the lifting mechanism. The power output end of the power mechanism is rotationally connected to the gearbox of the transmission mechanism. The bottom of the gearbox outputs power through a main shaft. It also includes a grinding mechanism for providing grinding power and a follow-up adjustment mechanism for adjusting the grinding state of the grinding mechanism. The grinding mechanism is fixedly connected to the output end of the main shaft, and the follow-up adjustment mechanism is rotationally connected inside the grinding mechanism;

[0007] The grinding mechanism further includes an inner grinding frame, grinding blocks and polishing cloth. The grinding mechanism includes a plurality of the inner grinding frames, and the inner grinding frames are vertically arranged in an array. The inner grinding frames are rotationally connected to the outside of the main power frame;

[0008] The follow-up adjustment mechanism includes an elastic component and a swing component. The driving force frame pulls the swing component through the elastic component, and a polishing block of the polishing mechanism is fixedly connected to the outside of the swing component.

[0009] A plurality of the polishing blocks are arranged in a circumferential array on the outside of the inner polishing frame, and the inner side of the polishing block is rotationally connected to the inner polishing frame through the swing component. The polishing block is of a cylindrical structure, and the polishing cloth is fixedly connected to the outer circumferential end face of the polishing block.

[0010] Preferably: The elastic component of the follow-up adjustment mechanism includes a traction frame and a traction spring. The swing component of the follow-up adjustment mechanism includes a swing wheel and a linkage rod. The traction frame is key-connected to the driving force frame. Both ends of the traction spring are connected to the traction frame and the swing wheel through pin shafts. The swing wheel is rotationally connected to the inner polishing frame through a pin shaft. Both ends of the linkage rod are fixedly connected to the swing wheel and the polishing block.

[0011] With such a setting, by using the swing of the swing wheel, the linkage rod, the polishing block, and the polishing cloth swing and expand outward, so as to quickly and deeply polish accidental burrs and protrusions on the inner wall in a small area, avoiding the need for large-area and long-time polishing.

[0012] Preferably: The polishing cloth is wrapped and inlaid and connected to the polishing block. The radian of the polishing cloth is 270°, and the polishing cloth is connected to the polishing block through a buckle or Velcro.

[0013] With such a setting, the quick-release structure can be used to quickly replace polishing cloths with different roughnesses or replace worn polishing cloths.

[0014] Preferably: A groove for restricting the swing of the swing wheel is formed on the inner polishing frame. The swing angle range of the swing wheel under the restriction of the groove is 0° - 30°.

[0015] With such a setting, the groove on the inner polishing frame is used for restriction to avoid the phenomenon that the swing wheel flips excessively.

[0016] Preferably: Grooves for cooperating with the traction spring are formed on both the traction frame and the swing wheel, and the opening angle of the groove is 30°.

[0017] Preferably: The deviation angle of the linkage rod and the polishing cloth from the radial direction of the inner polishing frame at the initial position is 40°.

[0018] Preferably: The power mechanism includes a motor, a driving wheel, a driven wheel, and an adjusting wheel. A groove for restricting the lateral movement of the gearbox is provided on the lifting frame of the lifting mechanism. The gearbox is fixedly connected to the lifting frame through bolts. The driven wheel is key-connected to the input shaft of the gearbox, and the driven wheel is slidably connected to the lifting frame.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] Through the cooperation of the polishing mechanism and the follow-up adjustment mechanism, when the polishing cloth polishes the inner wall, if it encounters accidental burrs or protrusions, the follow-up adjustment mechanism can be used to promote the rotational speed difference between the driving force frame and the inner polishing frame, thereby adjusting the polishing force of the polishing block and the polishing cloth, and then quickly and deeply polishing and grinding this small area. After grinding, it quickly resets and performs overall grinding, avoiding subsequent rework and repair, as well as avoiding over-grinding caused by long-term grinding, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model 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 following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 is a schematic structural diagram of a polishing device for the inner wall of a pump body according to the present utility model;

[0023] Figure 2 is a schematic structural diagram of the power mechanism of a polishing device for the inner wall of a pump body according to the present utility model;

[0024] Figure 3 is a schematic structural diagram of the polishing mechanism of a polishing device for the inner wall of a pump body according to the present utility model;

[0025] Figure 4 is a schematic internal structure diagram of the polishing mechanism of a polishing device for the inner wall of a pump body according to the present utility model;

[0026] Figure 5 is a schematic structural diagram of the swing wheel of a polishing device for the inner wall of a pump body according to the present utility model;

[0027] Figure 6 is a schematic internal structure diagram of the inner polishing frame of a polishing device for the inner wall of a pump body according to the present utility model;

[0028] Figure 7 is a schematic structural diagram of the initial state of the follow-up adjustment mechanism of a polishing device for the inner wall of a pump body according to the present utility model;

[0029] Figure 8 is a schematic structural diagram of the state of the follow-up adjustment mechanism of a polishing device for the inner wall of a pump body according to the present utility model after being subjected to instantaneous reverse friction.[[ID=D43]] [[ID=D44]]

[0030] The description of the reference numerals is as follows:

[0031] 1. Lifting mechanism; 2. Power mechanism; 3. Conduction mechanism; 4. Grinding mechanism; 5. Follow-up adjustment mechanism; 6. Bottom fixing mechanism; 21. Driving wheel; 22. Driven wheel; 23. Adjusting wheel; 31. Gear box; 32. Main shaft; 41. Inner grinding frame; 42. Main power frame; 43. Grinding block; 44. Polishing cloth; 51. Traction frame; 52. Traction spring; 53. Swing wheel; 54. Link rod. Detailed implementation manners

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0034] The present utility model will be further described below with reference to the drawings:

[0035] As Figures 1 - 8As shown in the figure, a polishing device for the inner wall of a pump body includes a bottom fixing mechanism 6 for fixing the pump body, a power mechanism 2 for providing polishing power, and a lifting mechanism 1 for controlling the lifting of the power mechanism 2. The power mechanism 2 is fixedly connected to the lifting plate of the lifting mechanism 1. The power output end of the power mechanism 2 is rotatably connected to the gearbox 31 of the transmission mechanism 3. The bottom of the gearbox 31 outputs power through the main shaft 32. It also includes a polishing mechanism 4 for providing polishing power and a follow-up adjustment mechanism 5 for adjusting the polishing state of the polishing mechanism 4. The polishing mechanism 4 is fixedly connected to the output end of the main shaft 32, and the follow-up adjustment mechanism 5 is rotatably connected inside the polishing mechanism 4;

[0036] The polishing mechanism 4 further includes an inner polishing frame 41, polishing blocks 43, and polishing cloths 44. The polishing mechanism 4 includes a plurality of inner polishing frames 41, and the inner polishing frames 41 are arranged in a vertical array. The inner polishing frames 41 are rotatably connected to the outside of the main power frame 42;

[0037] The follow-up adjustment mechanism 5 includes an elastic component and a swinging component. The main power frame 42 pulls the swinging component through the elastic component, and the outside of the swinging component is fixedly connected to the polishing block 43 of the polishing mechanism 4;

[0038] A plurality of polishing blocks 43 are arranged in a circumferential array on the outside of the inner polishing frame 41, and the inner sides of the polishing blocks 43 are rotatably connected to the inner polishing frame 41 through the swinging component. The polishing blocks 43 are of a cylindrical structure, and the polishing cloths 44 are fixedly connected to the outer circumferential end faces of the polishing blocks 43.

[0039] In this embodiment, the elastic component of the follow-up adjustment mechanism 5 includes a traction frame 51 and a traction spring 52. The swinging component of the follow-up adjustment mechanism 5 includes a swinging wheel 53 and a connecting rod 54. The traction frame 51 is key-connected to the main power frame 42. The two ends of the traction spring 52 are connected to the traction frame 51 and the swinging wheel 53 through pin shafts. The swinging wheel 53 is rotatably connected to the inner polishing frame 41 through a pin shaft, and the two ends of the connecting rod 54 are fixedly connected to the swinging wheel 53 and the polishing block 43.

[0040] With such a setting, by the swinging of the swinging wheel 53, the connecting rod 54, the polishing block 43, and the polishing cloth 44 swing and expand outward, so as to perform deep polishing on accidental burrs and protrusions on the inner wall in a small area quickly, avoiding the need for large-area and long-time polishing.

[0041] In this embodiment, the polishing cloth 44 is wrapped and inlaid and connected to the polishing block 43. The radian of the polishing cloth 44 is 270°. The polishing cloth 44 is connected to the polishing block 43 through a buckle or a magic tape. The quick-release structure can be used to quickly replace polishing cloths 44 with different roughnesses or replace worn polishing cloths 44.

[0042] In this embodiment, a groove for restricting the swing of the swing wheel 53 is formed on the inner grinding frame 41. The swing angle range of the swing wheel 53 under the restriction of the groove is 0° - 30°. The groove on the inner grinding frame 41 is used for restriction to avoid the phenomenon that the swing wheel 53 flips excessively.

[0043] In this embodiment, grooves for mating with the traction spring 52 are formed on both the traction frame 51 and the swing wheel 53, and the opening angle of the groove is 30°.

[0044] In this embodiment, the deviation angle between the linkage rod 54 and the polishing cloth 44 in the initial position and the radial direction of the inner grinding frame 41 is 40°.

[0045] In this embodiment, the power mechanism 2 includes a motor, a driving wheel 21, a driven wheel 22, and an adjusting wheel 23. A groove for restricting the lateral movement of the gearbox 31 is provided on the lifting frame of the lifting mechanism 1. The gearbox 31 is fixedly connected to the lifting frame by bolts. The driven wheel 22 is key-connected to the input shaft of the gearbox 31, and the driven wheel 22 is slidably connected to the lifting frame.

[0046] Working principle: When in use, first select the appropriate size of the grinding block 43 according to the pump body to be ground. As Figure 1 and Figure 2 shown, the lifting mechanism 1 is an existing conventional structure, which has components such as a base, a lifting frame, a lifting slide rail, and a lifting power oil cylinder. When it is necessary to adjust the positions of the gearbox 31 and the driven wheel 22, loosen the bolts fixing the gearbox 31 on the lifting frame. Since the driven wheel 22 is key-connected to the input shaft of the gearbox 31, when adjusting the relative position of the gearbox 31 and the lifting frame, the driven wheel 22 also moves along with the gearbox 31. After moving to a position suitable for the size of the pump body, then fix the gearbox 31 on the lifting frame with bolts. At this time, because the position of the driven wheel 22 is adjusted, the tightness of the external conveyor belt also changes. Furthermore, by moving the position of the adjusting wheel 23, the conveyor belt has an appropriate tightness, which can ensure that when the motor drives the driving wheel 21 to start, the driven wheel 22 can obtain sufficient torque through the conveyor belt with appropriate tightness, and then transmit the power to the adjusting gearbox 31 for power transmission;

[0047] Start the motor of the power mechanism 2 and the motor of the bottom fixing mechanism 6, as Figure 1As shown, the fixing mechanism 6 in this solution is a common chuck base. In the prior art, a common chuck base includes fixed jaws, a rotating disk, a speed reducer and a motor at the bottom of the rotating disk. When it is necessary to polish the inner wall of the pump body, first, according to the size of the inner wall of the pump body, it is determined whether the pump body needs to be rotated. If rotation is required, the axis of the pump body is aligned with the axis of the rotating disk, and then the pump body is fixed by the jaws. When the motor of the fixing mechanism 6 is started, after the main shaft of the motor is speed-regulated by the speed reducer, the output shaft of the speed reducer drives the rotating disk, the jaws and the pump body fixed on the jaws to rotate;

[0048] As Figure 2 shown, after the power of the motor of the power mechanism 2 passes through the driving wheel 21, it drives the driven wheel 22 to rotate through the conveyor belt. The rotating driven wheel 22 drives the input shaft of the gearbox 31 (the gearbox in this solution is a conventional reduction gearbox in existing polishing equipment, and the internal structure will not be elaborated). After the power is transmitted inside the gearbox 31, it is transmitted from the bottom main shaft 32. Then the power of the main shaft 32 is transmitted to the main power frame 42 (as Figures 2 - 3 shown), and the main power frame 42 drives the inner polishing frame 41 to rotate clockwise along Figure 7 shown by the follow-up adjustment mechanism 5. And the inner polishing frame 41 drives the entire follow-up adjustment mechanism 5 installed thereon to rotate clockwise as well. At the initial stage of startup, due to the influence of inertia and centrifugal force, the main power frame 42 will rotate first. At this time, the external polishing block 43 and polishing cloth 44 do not participate in polishing and are not subject to reverse resistance. Then the inner polishing frame 41 is driven to rotate by the internal main power frame 42, the traction frame 51, the traction spring 52 and the swing wheel 53 until the rotation of the inner polishing frame 41 and the main power frame 42 tends to be stable. The lifting mechanism 1 is used to drive the entire polishing mechanism 4 to descend to polish the inner wall of the pump body. The stable rotation of the inner polishing frame 41 polishes the inner wall through the polishing cloth 44;

[0049] When suddenly encountering a large burr or protrusion on the inner wall during polishing, the rough surface will provide an instantaneously increased reverse friction force to the polishing cloth 44. At this time, due to the relatively soft material of the polishing cloth 44, the reverse friction force will be transmitted to the polishing block 43 and the swing wheel 53 on the link rod 54. At this time, the driving force of the main power frame 42 remains unchanged, and the instant reverse friction force will pull the traction spring 52, making the traction spring 52 longer. At the same time, there is a dislocation between the inner polishing frame 41 and the main power frame 42 (as Figures 7 to 8 shown in the change). At this time, due to the dislocation between the inner polishing frame 41 and the main power frame 42, after the traction spring 52 is stretched, it will pull the swing wheel 53 to flip. After the swing wheel 53 flips, it drives the polishing block 43 and the polishing cloth 44 to flip through the link rod 54. Then the relative size of the polishing cloth 44 becomes larger, as Figure 7 and Figure 8As shown, in the initial stage of grinding, the polishing cloth 44 is ground under the drive of the non-rotated swing wheel 53 and the linkage rod 54. At this time, the eight vertices at the outermost periphery of the eight polishing cloths 44 form a circle during the rotary grinding, that is, the size of the circle formed at this time is Figure 7 the short dashed circle in Figure 8 (i.e., the small-size grinding range). When encountering increased reverse friction caused by larger burrs, the polishing cloth 44 is driven by the rotated swing wheel 53 and the linkage rod 54 to perform rotary grinding. At this time, the eight vertices at the outermost periphery of the eight polishing cloths 44 also form a circle during the rotary grinding, that is, the size of the circle formed at this time is Figure 8 the long dashed circle in

[0050] (i.e., the large-size grinding range, and the comparison between the small-size grinding range and the large-size grinding range is shown in ). Since the inner wall size has not changed and the polishing cloth 44 is made of a soft material, the pressing and grinding force of the polishing cloth 44 on this area of the inner wall becomes larger, thereby quickly and deeply processing larger burrs. Until the burrs in this area are continuously ground by the polishing cloth 44, the swing wheel 53 is reset under the traction of the traction spring 52, and the polishing cloth 44 is also reset to continue grinding. The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A polishing device for the inner wall of a pump body, comprising a bottom fixing mechanism (6) for fixing the pump body, a power mechanism (2) for providing polishing power, and a lifting mechanism (1) for controlling the lifting of the power mechanism (2). The power mechanism (2) is fixedly connected to the lifting plate of the lifting mechanism (1). The power output end of the power mechanism (2) is rotationally connected to the gearbox (31) of the transmission mechanism (3). The bottom of the gearbox (31) outputs power through the main shaft (32), and it is characterized in that: It further includes a grinding mechanism (4) for providing grinding power and a follow-up adjustment mechanism (5) for adjusting the grinding state of the grinding mechanism (4). The grinding mechanism (4) is fixedly connected to the output end of the main shaft (32), and the follow-up adjustment mechanism (5) is rotatably connected inside the grinding mechanism (4); The grinding mechanism (4) further includes an inner grinding frame (41), grinding blocks (43), and a polishing cloth (44). The grinding mechanism (4) includes a plurality of the inner grinding frames (41), and the inner grinding frames (41) are vertically arranged in an array. The inner grinding frames (forty-one) are rotatably connected to the outside of the main power frame (42); The follow-up adjustment mechanism (5) includes an elastic component and a swing component. The main power frame (42) pulls the swing component through the elastic component, and the swing component is fixedly connected to the grinding block (43) of the grinding mechanism (4) on the outside; A plurality of the grinding blocks (43) are arranged in a circumferential array on the outside of the inner grinding frame (41), and the inner sides of the grinding blocks (43) are rotatably connected to the inner grinding frame (41) through the swing component. The grinding blocks (43) are of a cylindrical structure, and the polishing cloth (44) is fixedly connected to the outer end face of the grinding block (43).

2. The inner wall polishing device of a pump body according to claim 1, wherein: The elastic component of the follow-up adjustment mechanism (5) includes a traction frame (51) and a traction spring (52). The swing component of the follow-up adjustment mechanism (5) includes a swing wheel (53) and a linkage rod (54). The traction frame (51) is key-connected to the main power frame (42). The two ends of the traction spring (52) are connected to the traction frame (51) and the swing wheel (53) through pin shafts. The swing wheel (53) is rotatably connected to the inner grinding frame (41) through a pin shaft. The two ends of the linkage rod (54) are fixedly connected to the swing wheel (53) and the grinding block (43).

3. A polishing device for the inner wall of a pump body according to claim 1, characterized in that: The polishing cloth (44) is wrapped and inlaid on the grinding block (43). The radian of the polishing cloth (44) is 270°. The polishing cloth (44) is connected to the grinding block (43) through a buckle or Velcro.

4. A polishing device for the inner wall of a pump body according to claim 2, characterized in that: A groove for restricting the swing of the swing wheel (53) is formed on the inner grinding frame (41). The swing angle range of the swing wheel (53) restricted by the groove is 0° - 30°.

5. The inner wall polishing device of a pump body according to claim 4, characterized in that: Grooves for cooperating with the traction spring (52) are formed on both the traction frame (51) and the swing wheel (53), and the opening angle of the groove is 30°.

6. The inner wall polishing device of a pump body according to claim 2, wherein: The deviation angle of the linkage rod (54) and the polishing cloth (44) from the radial direction of the inner grinding frame (41) at the initial position is 40°.

7. A polishing device for the inner wall of a pump body according to claim 1, characterized in that: The power mechanism (2) includes a motor, a driving wheel (21), a driven wheel (22), and an adjusting wheel (23). A groove for restricting the lateral movement of the gearbox (31) is provided on the lifting frame of the lifting mechanism (1). The gearbox (31) is fixedly connected to the lifting frame through bolts. The driven wheel (22) is key-connected to the input shaft of the gearbox (31), and the driven wheel (22) is slidably connected to the lifting frame.

Images