Shaft body excircle grinding and polishing device

Abstract

The invention discloses a shaft body excircle grinding and polishing device, which belongs to the technical field of shaft body polishing, and comprises a frame and a driving wheel, the frame is mounted on polishing equipment, the driving wheel is rotatably mounted on the frame, the driving wheel is of a hollow structure, and a polishing solution is stored in the driving wheel; the abutting assembly is installed on the frame and driven by a second push rod installed on the frame to abut against the shaft body from the side, away from the driving wheel, of the shaft body to be polished. When the driving wheel abuts against the to-be-polished shaft body, the position, making contact with the shaft body, of the driving wheel generates elastic deformation, meanwhile, polishing liquid in the driving wheel flows to the to-be-polished shaft body through the deformation part, the polishing device can abut against the shaft body from the two sides to conduct grinding and polishing, and the stability and uniformity of grinding are guaranteed; and meanwhile, the polishing solution is discharged through extrusion, and the polishing solution is smeared on the shaft body, so that the polishing solution is prevented from splashing.

Description

Technical Field

[0001] The present invention relates to the technical field of shaft body polishing, and particularly relates to an outer circle grinding and polishing device for a shaft body. Background Art

[0002] In the production and manufacturing process of vehicle parts, some shaft bodies such as steering shafts and suspension shafts need to be polished to ensure better operation. Currently, traditional grinding tools often clamp the shaft body to be polished from both ends, and then press against the shaft body from one side to achieve grinding and polishing of the shaft body. This method is difficult to ensure the stability and uniformity of the shaft body during the grinding process. In addition, the supply of polishing liquid is often directly sprayed on the shaft body, which easily causes the polishing liquid to splash everywhere during the polishing process, not only resulting in waste of the polishing liquid, but also polluting the working environment. To solve the above problems, the present invention provides an outer circle grinding and polishing device for a shaft body. Summary of the Invention

[0003] Aiming at the above-mentioned technical deficiencies, the purpose of the present invention is to provide an outer circle grinding and polishing device for a shaft body, which can press against the shaft body from both sides for grinding and polishing, ensure the stability and uniformity of grinding, and at the same time squeeze out the polishing liquid and apply the polishing liquid on the shaft body to avoid splashing of the polishing liquid.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides an outer circle grinding and polishing device for a shaft body, including: A frame, which is installed on the polishing equipment and can reciprocate along the axial direction of the shaft body to be polished; A driving wheel, which is rotatably installed on the frame, is driven by a motor to rotate, and is driven by a first push rod installed on the frame to press against the shaft body to be polished. The driving wheel is a hollow structure, and polishing liquid is stored inside it; A pressing component, which is installed on the frame and is driven by a second push rod installed on the frame to press against the shaft body from the side of the shaft body to be polished away from the driving wheel; Wherein, when the driving wheel presses against the shaft body to be polished, the position where the driving wheel contacts the shaft body undergoes elastic deformation, and at the same time, the polishing liquid inside the driving wheel will flow to the shaft body to be polished through the deformed part.

[0005] Preferably, the driving wheel includes: A shaft frame, which is a hollow cylindrical structure, and a plurality of through holes are opened on the circumferential surface of the shaft frame. The plurality of through holes are evenly distributed on the side surface of the shaft frame along the circumferential direction of the shaft frame. The material of the shaft frame is an elastic material; A plurality of rubber membranes, which are adapted to the plurality of through holes, and a plurality of liquid discharge ports are opened on the rubber membranes; Wherein, the rubber film has at least two states. When the rubber film is in the first state, the liquid discharge port is open, and when the rubber film is in the second state, the liquid discharge port is closed; When the axle box abuts against the axle body to be polished, the rubber film at the deformation position is in the first state, and the rubber film at other positions is in the second state.

[0006] Preferably, a grinding sleeve is sleeved outside the axle box. The shape of the grinding sleeve is a cylindrical shape with one end open, and the inner side surface of the closed end of the grinding sleeve is connected to the axle box through a magic tape.

[0007] Preferably, a convex platform is provided between two adjacent through ports. The convex platform is fixedly connected to the inner side surface of the axle box, and the cross-sectional shape of the convex platform is a triangle with a middle protrusion.

[0008] Preferably, the axle box is rotatably installed on the base shaft. The base shaft is a hollow structure, and one end of the base shaft communicates with an external lifting pump, and the other end extends to the inside of the axle box. A plurality of through ports are provided on the side surface of the base shaft located inside the axle box.

[0009] Preferably, the abutting assembly includes: A mounting frame, the mounting frame is slidably connected to the corresponding frame through a fixing plate fixedly connected thereto, and the housing of the second push rod is installed on the frame, and the output rod of the second push rod is fixedly connected to the mounting frame; Two auxiliary wheels, the two auxiliary wheels are rotatably installed on the mounting frame, and the distance between the lower auxiliary wheel and the second push rod is greater than the distance between the upper auxiliary wheel and the second push rod.

[0010] Preferably, the frame includes a first half-frame and a second half-frame. The driving wheel is installed on the first half-frame. Connecting seats are installed on both the first half-frame and the second half-frame, and the connecting seats are connected to a driving device on the polishing equipment.

[0011] Preferably, the first half-frame is hinged to the corresponding connecting seat, and the housing of the first push rod is hinged to the corresponding connecting seat, and the output rod of the first push rod is hinged to the first half-frame.

[0012] The beneficial effect of the present invention is that: Through the arrangement of the driving wheel and the abutting assembly, the present invention realizes that the axle body to be polished can be abutted from both sides of the axle body to be polished at the same time, so that the axle body can rotate stably during the abutting process, and the grinding and polishing work can be realized.

[0013] Through the arrangement of the shaft frame and the rubber film, the present invention realizes that when the driving wheel abuts against the shaft body to be polished, the shaft frame will produce corresponding deformation, increasing the friction force between the driving wheel and the shaft body. At the same time, the rubber film at the deformed position will be stretched, causing the liquid discharge ports on the corresponding rubber film to open. At this time, the polishing liquid inside the shaft frame will be discharged through the liquid discharge ports and evenly applied to the shaft body through the polishing sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of 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 described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic structural diagram (first perspective) of an outer circle grinding and polishing device for a shaft body provided by an embodiment of the present invention.

[0016] Figure 2 It is a schematic structural diagram (second perspective) of an outer circle grinding and polishing device for a shaft body provided by an embodiment of the present invention.

[0017] Figure 3 It is a cross-sectional view of the shaft frame of the present invention.

[0018] Figure 4 It is an assembly schematic diagram of the polishing sleeve, the shaft frame and the base shaft of the present invention.

[0019] Figure 5 It is an assembly schematic diagram of the rubber film and the through-hole of the present invention.

[0020] Description of the reference numerals: 1. Frame, 101. First half-frame, 102. Second half-frame, 103. Connecting seat, 2. Shaft frame, 3. Motor, 4. Auxiliary wheel, 5. First push rod, 6. Second push rod, 7. Through-hole, 8. Rubber film, 9. Liquid discharge port, 10. Polishing sleeve, 11. Boss, 12. Base shaft, 13. Mounting frame, 14. Fixed plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] The present invention provides an outer circle grinding and polishing device for a shaft body, as Figures 1 to 5As shown

[0023] Example 1: An outer cylindrical grinding and polishing device for a shaft body includes a frame 1. The frame 1 is installed on a polishing device and can reciprocate on the polishing device along the axial direction of the shaft body to be polished. The frame 1 includes a first half-frame 101 and a second half-frame 102. The first half-frame 101 and the second half-frame 102 are respectively located on both sides of the shaft body to be polished. Connecting seats 103 are installed on both the first half-frame 101 and the second half-frame 102. The connecting seats 103 can be threadedly connected to a lead screw installed on the polishing device. By controlling the rotation direction of the lead screw, the movement directions of the first half-frame 101 and the second half-frame 102 can be controlled. The above form is prior art and has now been widely used in various polishing devices, so it will not be elaborated in this invention.

[0024] The first half-frame 101 is hinged to the corresponding connecting seat 103, and the second half-frame 102 is fixedly connected to the corresponding connecting seat 103. A first push rod 5 is installed between the first half-frame 101 and the corresponding connecting seat 103. The housing of the first push rod 5 is hinged to the corresponding connecting seat 103, and the output rod of the first push rod 5 is hinged to a connecting rod fixedly connected to the first half-frame 101. When the output rod of the first push rod 5 extends, the first half-frame 101 will move towards the shaft body to be polished.

[0025] A driving wheel is rotatably installed on the first half-frame 101, and the driving wheel is driven to rotate by a motor 3. The motor 3 is installed on the first half-frame 101.

[0026] A pressing component is installed on the second half-frame 102. The pressing component is connected to the output rod of a second push rod 6. The second push rod 6 is installed on the second half-frame 102.

[0027] When grinding work is carried out, the output rods of the first push rod 5 and the second push rod 6 extend simultaneously, so that the driving wheel and the pressing component can cooperate with each other to tightly press the shaft body from both sides of the shaft body to be polished. At the same time, the motor 3 drives the driving wheel to rotate to realize the grinding of the shaft body.

[0028] The pressing component includes a mounting frame 13. The mounting frame 13 is fixedly connected to the output rod of the second push rod 6. A fixing plate 14 is fixedly connected to the mounting frame 13. The fixing plate 14 penetrates through the second half-frame 102 and extends to the outside of the second half-frame 102. Two auxiliary wheels 4 are rotatably installed inside the mounting frame 13. The two auxiliary wheels 4 are distributed vertically, and the distance between the lower auxiliary wheel 4 and the second push rod 6 is greater than the distance between the upper auxiliary wheel 4 and the second push rod 6. At this time, the lower auxiliary wheel 4 can play a certain supporting role for the shaft body to be polished, improving the stability of the shaft body during the grinding process.

[0029] Example 2: Based on Embodiment 1, in order to improve the grinding effect, the driving wheel is designed to be deformable. When the driving wheel presses against the shaft body, elastic deformation will occur at the pressing position (i.e., the contact part between the shaft frame 2 and the shaft body to be polished), thereby increasing the contact area between the driving wheel and the shaft body and the friction force between the driving wheel and the shaft body, and then improving the grinding and polishing effect. Specifically, as follows: The driving wheel includes a shaft frame 2. The shaft frame 2 is rotatably installed inside the first half-frame 101. The material of the shaft frame 2 is an elastic material. The shaft frame 2 is rotatably installed on the base shaft 12. One end of the shaft frame 2 is connected to the motor shaft of the motor 3. The base shaft 12 is fixedly installed inside the first half-frame 101. The base shaft 12 can support the shaft frame 2. The rotation of the motor shaft of the motor 3 can drive the shaft frame 2 to rotate.

[0030] A grinding sleeve 10 is sleeved outside the shaft frame 2. The shape of the grinding sleeve 10 is a cylindrical shape with one end open. The grinding sleeve 10 can be sleeved and installed on the shaft frame 2. The inner side surface of the closed end of the grinding sleeve 10 is connected to the shaft frame 2 through a magic tape. The male surface of the magic tape is installed on the end surface of the shaft frame 2, and the female surface of the magic tape is installed on the grinding sleeve 10, ensuring that the shaft frame 2 drives the grinding sleeve 10 to rotate stably during the grinding process.

[0031] At the same time, in order to prevent the grinding sleeve 10 from falling off the shaft frame 2, during the grinding process, the shaft frame 2 can be made to move unidirectionally towards the closed end of the grinding sleeve 10 (as Figure 4 shown, the closed end of the grinding sleeve 10 faces to the left, and the shaft frame 2 will move to the left during the grinding process), and after the grinding is completed, the shaft frame 2 is restored to its initial position (i.e., the position before the grinding work), so that it can be ensured that each time during the grinding work, the movement direction of the shaft frame 2 is towards the direction of the closed end of the grinding sleeve 10, and then the grinding sleeve 10 can be prevented from falling off the shaft frame 2.

[0032] Embodiment 3: Based on Embodiment 2, in order to prevent the polishing liquid from splashing and wasting, both the shaft frame 2 and the base shaft 12 are designed as hollow structures. One end of the base shaft 12 is communicated with an external lifting pump, and the other end extends into the interior of the shaft frame 2. A plurality of through holes are opened on the side surface of the base shaft 12 located inside the shaft frame 2. The external lifting pump can pump the polishing liquid into the interior of the base shaft 12. The polishing liquid entering the interior of the base shaft 12 will enter the interior of the shaft frame 2 through the plurality of through holes. The relationship between the base shaft 12 and the shaft frame 2 is a rotational sealing relationship, which can prevent the polishing liquid from leaking.

[0033] The axle box 2 is a hollow cylindrical structure. A plurality of through ports 7 are provided on the annular surface of the axle box 2. The plurality of through ports 7 are evenly distributed on the side surface of the axle box 2 along the circumferential direction of the axle box 2. A rubber film 8 is installed inside each through port 7. A plurality of liquid discharge ports 9 are provided on the rubber film 8. The rubber film 8 has at least two states. When the rubber film 8 is in the first state, the liquid discharge ports 9 thereon are opened. When the rubber film 8 is in the second state, the liquid discharge ports 9 thereon are closed.

[0034] When the axle box 2 abuts against the axle body to be polished, deformation will occur at the abutting position. The rubber film 8 located at the deformed position will be stretched, and the corresponding liquid discharge ports 9 will be opened. The rubber film 8 at the deformed position is in the first state, and the rubber film 8 at the remaining positions is not stretched. Under the action of the elastic force of the rubber film 8 itself, the corresponding liquid discharge ports 9 will be closed. At this time, the rubber film 8 is in the second state.

[0035] When the axle box 2 rotates, under the action of centrifugal force, the polishing liquid inside the axle box 2 will be evenly distributed on the inner side surface of the axle box 2. At this time, after the liquid discharge ports 9 are opened, the polishing liquid will move to the outside of the axle box 2 through the liquid discharge ports 9 and be absorbed by the grinding sleeve 10, and then be evenly applied on the axle body to be polished by the grinding sleeve 10, avoiding the splashing of the polishing liquid.

[0036] Furthermore, in order to make the polishing liquid better concentrated at the position of the through port 7, so that after the liquid discharge port 9 is opened, the polishing liquid can be better discharged through the opened liquid discharge port 9, a boss 11 is provided between two adjacent through ports 7, and the boss 11 is fixedly connected to the inner side surface of the axle box 2. The cross-sectional shape of the boss 11 is a triangle protruding in the middle. When the axle box 2 rotates, the polishing liquid will be evenly distributed on the inner side surface of the axle box 2 under the action of centrifugal force. At this time, the boss 11 will play a role in diverting the polishing liquid, making the polishing liquid better concentrated at the position of the through port 7.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. An outer cylindrical grinding and polishing device for a shaft body, characterized in that, Comprising: A frame (1), which is installed on a polishing device and can reciprocate along the axial direction of the shaft body to be polished; A driving wheel, which is rotatably installed on the frame (1), driven by a motor (3) to rotate, and driven by a first push rod (5) installed on the frame (1) to press against the shaft body to be polished. The driving wheel is of a hollow structure, and polishing liquid is stored inside it; A pressing assembly, which is installed on the frame (1), driven by a second push rod (6) installed on the frame (1) to press against the shaft body from the side of the shaft body to be polished away from the driving wheel; Wherein, when the driving wheel presses against the shaft body to be polished, the position where the driving wheel contacts the shaft body undergoes elastic deformation, and at the same time, the polishing liquid inside the driving wheel will flow to the shaft body to be polished through the deformed part.

2. The cylindrical external grinding and polishing device for a shaft body according to claim 1, characterized in that, The driving wheel includes: A shaft frame (2), which is a cylindrical hollow structure, and a plurality of through holes (7) are formed on the circumferential surface of the shaft frame (2). The plurality of through holes (7) are evenly distributed on the side surface of the shaft frame (2) along the circumferential direction of the shaft frame (2). The material of the shaft frame (2) is an elastic material; A plurality of rubber membranes (8), which are adapted to the plurality of through holes (7), and a plurality of liquid discharge ports (9) are formed on the rubber membranes (8); Wherein, the rubber membrane (8) has at least two states. When the rubber membrane (8) is in the first state, the liquid discharge port (9) is opened, and when the rubber membrane (8) is in the second state, the liquid discharge port (9) is closed; When the shaft frame (2) presses against the shaft body to be polished, the rubber membrane (8) at the deformed position is in the first state, and the rubber membranes (8) at other positions are in the second state.

3. The external cylindrical grinding and polishing device for a shaft body according to claim 2, characterized in that, A grinding sleeve (10) is sleeved outside the shaft frame (2). The shape of the grinding sleeve (10) is a cylindrical shape with one end open, and the inner side surface of the closed end of the grinding sleeve (10) is connected to the shaft frame (2) through a magic tape.

4. The external cylindrical grinding and polishing device for a shaft body according to claim 2, wherein, A boss (11) is provided between two adjacent through holes (7). The boss (11) is fixedly connected to the inner side surface of the shaft frame (2), and the cross-sectional shape of the boss (11) is a triangle protruding in the middle.

5. The external cylindrical grinding and polishing device for a shaft body according to claim 4, characterized in that, The shaft frame (2) is rotatably installed on a base shaft (12). The base shaft (12) is of a hollow structure, and one end of the base shaft (12) communicates with an external lifting pump, and the other end extends into the interior of the shaft frame (2). A plurality of through ports are formed on the side surface of the base shaft (12) located inside the shaft frame (2).

6. The external cylindrical grinding and polishing device for a shaft body according to claim 1, wherein, The pressing assembly includes: A mounting frame (13), which is slidably connected to the corresponding frame (1) through a fixing plate (14) fixedly connected thereto. The housing of the second push rod (6) is installed on the frame (1), and the output rod of the second push rod (6) is fixedly connected to the mounting frame (13); Two auxiliary wheels (4), which are rotatably installed on the mounting frame (13), and the distance between the lower auxiliary wheel (4) and the second push rod (6) is greater than the distance between the upper auxiliary wheel (4) and the second push rod (6).

7. An outer circle grinding and polishing device for a shaft body according to claim 1, characterized in that, The frame (1) includes a first half-frame (101) and a second half-frame (102). The driving wheel is mounted on the first half-frame (101). Connecting seats (103) are mounted on both the first half-frame (101) and the second half-frame (102). The connecting seats (103) are interconnected with a driving device on the polishing equipment.

8. The external cylindrical grinding and polishing device for a shaft body according to claim 7, wherein, The first half-frame (101) is hinged to the corresponding connecting seat (103). The housing of the first push rod (5) is hinged to the corresponding connecting seat (103). The output rod of the first push rod (5) is hinged to the first half-frame (101).

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