A device for removing burrs from the outer surface of rotating parts

Abstract

The present invention discloses a device for removing burrs from the outer surface of rotating parts, which includes a limiting container, a rotating cylinder, a grinding tool, a magnetic pole plate, and a driving device; the rotating cylinder can be freely slidably accommodated in the cavity of the limiting container, and the grinding tool is fixedly installed in the rotating cylinder and filled with a cleaning agent with abrasive media; the grinding tool is provided with a slide groove for placing the rotating parts, and the surface of the slide groove is provided with an abrasive layer; the magnetic pole plate is relatively arranged at the bottom of the limiting container, and forms an eccentric magnetic pole through a plurality of permanent magnets fixedly installed on the top surface; the driving device is used to drive the magnetic plate and the magnetic pole plate to rotate around the vertical axis. The above-mentioned device for removing burrs from the outer surface of the parts can effectively remove burrs from the outer surface of the parts, and grind and clean the outer surface of the rotating parts under the turbulent flushing of the cleaning agent, thereby avoiding the damage caused by the collision between the magnetic needle and the parts in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of surface treatment, and in particular to a device for removing burrs from the outer surface of a rotating part. Background Art

[0002] After manufacturing, common mechanical components such as bearing inner and outer rings, slide valves, and slide valve sleeves often exhibit varying degrees of surface defects, such as burrs and bumps. To address the need for deburring and finishing, magnetic grinding and polishing technology has been widely used in many applications, including flat surfaces, internal and external surfaces, due to its advantages such as flexible contact, good adaptability, strong self-sharpening, low temperature rise, and the lack of tool wear compensation.

[0003] Magnetic polishing and finishing technology is a new finishing technology that uses a magnetic needle as a processing medium and drives the magnetic needle and the workpiece to move relative to each other through a rotating magnetic field. Figure 1 As shown, the rotating magnetic field is generated by the motor 2 inside the housing 1, which drives the magnetic pole array disk 4, which houses the permanent magnets 3, to rotate. Before finishing, a magnetic needle 5, abrasive fluid 6, and a workpiece 7 are mixed in the desired proportions and placed in a polishing cylinder 8, which is then covered. The motor drives the magnetic pole array disk to rotate, generating a rotating magnetic field 9. Driven by this rotating magnetic field, the magnetic needle inside the polishing cylinder begins to rotate at high speed, impacting burrs on the workpiece surface, thereby achieving the purpose of polishing the workpiece.

[0004] In existing magnetic polishing technology, the workpiece is often fixed on the tooling, and the surface finishing mainly relies on the collision between the magnetic needle and the workpiece. However, the collision between the magnetic needle and the workpiece can easily cause damage to the surface of the precision parts. Summary of the Invention

[0005] The present invention provides a device for removing burrs from the outer surface of rotating parts. The device rotates the rotating part through the rotation of the eccentric magnetic pole, and at the same time reciprocates along the slide groove of the grinding tool, so that the outer surface of the rotating part rubs against the grinding layer, effectively removing burrs on the outer surface, and grinding and cleaning the outer surface of the rotating part under the turbulent flushing of the cleaning agent, avoiding the damage caused by the collision between the magnetic needle and the part in the prior art.

[0006] The present invention adopts the following specific technical solutions:

[0007] A device for removing burrs from the outer surface of a rotating part, comprising a limiting container, a rotating cylinder, a grinding tool, a magnetic pole plate, and a driving device; wherein:

[0008] The limiting container and the rotating drum both have a cavity with an open top; the limiting container is used to limit the position of the rotating drum;

[0009] The rotating drum can be freely slidably accommodated in the cavity of the limiting container, and the grinding tool is fixedly installed in the rotating drum and is filled with a cleaning agent containing abrasive media;

[0010] The grinding tool is provided with a chute for placing the rotating part, and the surface of the chute is provided with an abrasive layer, and the length of the chute is greater than the axial length of the rotating part;

[0011] The magnetic pole plate is relatively arranged at the bottom of the limiting container, and forms an eccentric magnetic pole through a plurality of permanent magnets fixedly installed on the top surface;

[0012] The driving device is used to drive the magnetic pole plate of the magnetic conductive plate to rotate around the vertical axis;

[0013] When the driving device drives the magnetic pole plate to rotate, the pulsed magnetic field generated by the multiple permanent magnets drives the rotating body parts to rotate around the vertical axis and reciprocate along the slide groove, so that friction is generated between the outer surface of the workpiece and the grinding layer to remove burrs on the outer surface, and the workpiece is cleaned by the turbulent flushing of the cleaning agent.

[0014] Furthermore, the slide groove is a V-shaped groove or an arc-shaped groove;

[0015] The rotating body component is slidably supported in the slide groove.

[0016] Furthermore, the grinding layer is formed of elastic polymer abrasive.

[0017] Furthermore, a plurality of the permanent magnets are arranged on the top surface of the magnetic pole plate to form an eccentric ring.

[0018] Furthermore, the plurality of permanent magnets form at least two "U"-shaped permanent magnet arrays distributed along the circumference of the magnetic pole plate, and adjacent "U"-shaped permanent magnet arrays are connected end to end in sequence.

[0019] Furthermore, the rotating body part is a sliding valve sleeve.

[0020] Furthermore, the limiting container, the rotating cylinder and the grinding tool are all made of non-metallic materials.

[0021] Furthermore, the grinding tool is made of glass or acrylic material.

[0022] Furthermore, the grinding medium is silicon carbide or boron nitride.

[0023] Furthermore, the driving device is a motor;

[0024] The output shaft of the motor is arranged in the vertical direction;

[0025] The magnetic pole plate is fixedly connected to the top end of the output shaft and is coaxial with the output shaft.

[0026] Beneficial effects:

[0027] 1. The device for removing burrs from the outer surface of rotating parts of the present invention is provided with a rotating cylinder that can slide freely in the cavity of a limiting container, a grinding tool is fixedly installed in the rotating cylinder and contains a cleaning agent with abrasive media, a grinding layer is provided on the slide groove surface of the grinding tool, the length of the slide groove is greater than the axial length of the rotating part, a plurality of permanent magnets fixedly installed on the top surface of the magnetic pole plate form an eccentric magnetic pole, and the magnetic pole plate is driven by a driving device to rotate around the vertical axis to generate a pulsed magnetic field, and the driving part is driven to reciprocate along the slide groove while rotating around the vertical axis, so that the outer surface of the workpiece and the grinding layer are rubbed to remove burrs, and the parts are cleaned by the turbulent flushing of the cleaning agent, which not only removes burrs on the outer surface of the parts, but also cleans debris removed by friction on the outer surface of the parts under the turbulent flushing of the cleaning agent, and does not require a magnetic needle to avoid damage to the parts caused by collision. Therefore, the outer surface burr removal device of the present invention combines a non-contact magnetic field with the turbulence of a cleaning agent. The magnetic field generated by the eccentric magnetic pole drives the parts to reciprocate while rotating, so that the outer surface of the part and the grinding layer of the slide surface continuously produce friction, effectively removing the burrs on the outer surface. The outer surface of the part can also be ground and polished under the turbulent flushing of the cleaning agent containing the abrasive medium, further improving the quality of the outer surface of the part while avoiding collision damage to the outer surface of the part.

[0028] 2. Since the multiple permanent magnets installed on the top surface of the magnetic pole plate are arranged to form an eccentric ring or at least two "U"-shaped permanent magnet arrays distributed along the circumference and connected end to end, eccentric poles of different shapes can be formed at the bottom of the part through the permanent magnets. When the driving device drives the magnetic pole plate to rotate, the permanent magnets can generate pulsed magnetic fields of different frequencies, thereby changing the movement frequency of the part and further improving the surface quality of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the principle of magnetic grinding and polishing in the prior art;

[0030] Figure 2a Schematic diagram of the principle structure of the outer surface burr removal device of the present invention;

[0031] Figure 2b It is a schematic diagram of the relative position structure of the grinding tool and the rotating parts;

[0032] Figure 3 A schematic diagram of the arrangement structure of a permanent magnet on a magnetic pole plate;

[0033] Figure 4 Schematic diagram of another arrangement structure of permanent magnets on magnetic pole plates;

[0034] Figure 5 Schematic diagram of another arrangement structure of permanent magnets on magnetic pole plates;

[0035] Figure 6 To adopt Figure 3 Schematic diagram of the working principle of the permanent magnet arrangement structure;

[0036] Figure 7 To adopt Figure 4 Schematic diagram of the working principle of the permanent magnet arrangement structure;

[0037] Figure 8 To adopt Figure 5 Schematic diagram of the working principle of the permanent magnet arrangement structure;

[0038] Figure 9 Schematic diagram of the process of reciprocating motion of the workpiece along the support axis.

[0039] Existing technology: 1- box, 2- motor, 3- permanent magnet, 4- magnetic pole array disk, 5- magnetic needle, 6- grinding fluid, 7- workpiece, 8- polishing cylinder, 9- rotating magnetic field

[0040] The present invention: 101-limiting container, 102-rotating cylinder, 103-grinding tool, 104-chute, 105-pole plate, 106-permanent magnet, 107-driving device, 108-cleaning agent, 109-parts, 110-grinding layer DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] like Figure 2a As shown in the structure, this embodiment provides a device for removing burrs from the outer surface of a rotating part 109. The rotating part 109 can be a sliding valve sleeve, a plunger, a tubular part, etc. The outer surface burr removal device includes a limiting container 101, a rotating cylinder 102, a grinding tool 103, a magnetic pole plate 105 and a driving device 107; wherein:

[0043] The limiting container 101 and the rotating cylinder 102 both have a cavity with an opening at the top; the limiting container 101 and the rotating cylinder 102 can be containers with an opening at the top, such as a circular cylinder, a square cylinder, etc., and the rotating cylinder 102 and the rotating body part 109 are taken and placed through the opening at the top; in this embodiment, the limiting container 101 and the rotating cylinder 102 are both rectangular containers, and an example is given in which four rotating cylinders 102 are evenly distributed along the circumference in the limiting container 101. The actual container shape and distribution method are not limited by the example in the figure; the limiting container 101 is used to limit the rotating cylinder 102 to prevent the rotating cylinder 102 from leaving the magnetic field range during movement, thereby ensuring that the rotating body part The deburring work of the outer surface of 109 is carried out normally; the limiting container 101 can be supported on the ground by a bracket or a leg, so that the bottom surface of the limiting container 101 is located on the top of the permanent magnet 106 and there is a gap between the permanent magnet 106 to prevent friction between the top surface of the permanent magnet 106 and the bottom surface of the limiting container 101; the top of the limiting container 101 can also be provided with a top cover for sealing the opening; the limiting container 101 and the rotating cylinder 102 can be made of non-metallic materials such as plastic, organic glass, rubber, etc.; the limiting container 101 and the rotating cylinder 102 are made of non-metallic materials, which is conducive to reducing weight and avoiding shielding the pulse magnetic field generated by the permanent magnet 106;

[0044] The rotating cylinder 102 can be freely slidably accommodated in the cavity of the limiting container 101, and the rotating cylinder 102 is fixedly installed with a grinding tool 103 and filled with a cleaning agent 108 with abrasive media; the grinding tool 103 can be removed from the rotating cylinder 102, which is convenient for replacing the grinding tool 103 or the rotating body part 109; Figure 2a 、 Figure 6 、 Figure 7 and Figure 8 As shown, four rotating cylinders 102 are placed in the limiting container 101. The specific structure of the rotating cylinder 102 can be matched with the shape of the workpiece; the grinding tool 103 can be made integrally with the rotating cylinder 102; the cleaning agent 108 can be a cleaning liquid such as kerosene, alcohol, etc.; the grinding medium can be silicon carbide or boron nitride;

[0045] like Figure 2a and Figure 2bAs shown, the grinding tool 103 is provided with a slide groove 104 for placing the rotating part 109, and the surface of the slide groove 104 is provided with a grinding layer 110, and the length of the slide groove 104 is greater than the axial length of the rotating part 109, so that the rotating part 109 has a movement space along its axial direction; when working, the rotating part 109 is directly placed in the slide groove 104 of the grinding tool 103, and the axial direction of the rotating part 109 coincides with the length direction of the slide groove 104; the grinding tool 103 can be made of non-metallic materials such as glass or acrylic; the grinding layer 110 is formed on the surface of the slide groove 104 and is formed of elastic polymer abrasive; the elastic polymer can be fiber filament; the grinding layer 110 can also be formed of other abrasives bonded to the slide groove 104; the slide groove 104 can be a V-shaped groove, or an arc groove, a trapezoidal groove, etc.; the rotating part 109 is supported between the two inclined surfaces of the V-shaped groove;

[0046] The magnetic pole plate 105 is disposed relative to the bottom of the limiting container 101 and forms an eccentric magnetic pole through a plurality of permanent magnets 106 fixedly mounted on the top surface. The magnetic pole plate 105 can be a plate-shaped structure that matches the size and shape of the bottom surface of the limiting container 101, such as a circular plate, a square plate, etc. The magnetic pole plate 105 can be made of non-metallic material or metal material.

[0047] The driving device 107 is used to drive the magnetic plate 105 of the magnetic conductive plate to rotate around the vertical axis; the driving device 107 and the magnetic pole plate 105 can be connected to each other through a coupling and a transmission mechanism; the driving device 107 can be a motor; the output shaft of the motor is arranged in the vertical direction; the magnetic pole plate 105 is fixedly connected to the top of the output shaft and is coaxial with the output shaft; when the driving device 107 drives the magnetic pole plate 105 to rotate, the pulse magnetic field generated by the multiple permanent magnets 106 drives the rotating body part 109 to reciprocate along the slide 104 while rotating around the vertical axis, so that friction is generated between the outer surface of the workpiece and the grinding layer 110 to remove burrs on the outer surface, and the turbulent flushing of the cleaning agent 108 is used for cleaning. When the magnetic pole plate 105 and the permanent magnet 106 rotate, the rotating body part 109 moves with the permanent magnet 106. Please refer to the schematic diagram of the process. Figure 9 .

[0048] The above-mentioned outer surface burr removal device is used for deburring the outer surface of the rotating part 109. A rotating cylinder 102 that can slide freely is placed in the cavity of the limiting container 101. A grinding tool 103 is fixedly installed in the rotating cylinder 102 and contains a cleaning agent 108 with abrasive media. The surface of the chute 104 of the grinding tool 103 is provided with an abrasive layer 110. The length of the chute 104 is greater than the axial length of the rotating part 109. A plurality of permanent magnets 106 fixedly installed on the top surface of the magnetic pole plate 105 form an eccentric magnetic pole. The magnetic pole plate is driven by the driving device 107. 105 rotates around the vertical axis to generate a pulsed magnetic field, driving the rotating part 109 to rotate around the vertical axis and reciprocate along the slide 104, so that the outer surface of the workpiece rubs against the grinding layer 110 to remove burrs, and at the same time, the rotating part 109 is cleaned by the turbulent flushing of the cleaning agent 108, which not only removes the burrs on the outer surface of the rotating part 109, but also cleans the debris removed by friction on the outer surface of the rotating part 109 under the turbulent flushing of the cleaning agent 108. No magnetic needle is required, which avoids damage to the rotating part 109 caused by collision. Therefore, the outer surface burr removal device of the present invention combines a non-contact magnetic field with the turbulence of the cleaning agent 108. The magnetic field generated by the eccentric magnetic pole drives the rotating part 109 to reciprocate while rotating, so that the outer surface of the rotating part 109 and the grinding layer 110 on the surface of the slide 104 continuously produce friction, effectively removing the burrs on the outer surface. Under the turbulent flushing of the cleaning agent 108 containing the abrasive medium, the outer surface of the part can also be ground and polished, further improving the quality of the outer surface of the part while avoiding collision damage to the outer surface of the part.

[0049] The plurality of permanent magnets 106 of the magnetic pole plate 105 in the above-mentioned outer surface burr removal device can adopt various arrangement structures, such as Figure 3 As shown, multiple permanent magnets 106 are arranged on the top surface of the magnetic pole plate 105 to form an eccentric ring; when using Figure 3 When the permanent magnet 106 is arranged in an eccentric annular structure, the motion state of the rotating body part 109 is as follows: Figure 6 As shown; can also be Figure 4 and Figure 5 As shown, multiple permanent magnets 106 form at least two "U"-shaped permanent magnet arrays distributed along the circumference of the magnetic pole plate 105, and adjacent "U"-shaped permanent magnet arrays are connected end to end. The "U"-shaped permanent magnet array can be provided with 2, 3 or more; multiple permanent magnets 106 form an "8" shape or a triangular star shape; when using Figure 4 When the permanent magnets 106 are arranged in an "8" shape, the motion state of the rotating body part 109 is as follows: Figure 7 As shown; when using Figure 5 When the permanent magnets 106 are arranged in a triangular star shape, the motion state of the rotating body part 109 is as follows: Figure 8 shown.

[0050] Since the multiple permanent magnets 106 installed on the top surface of the magnetic pole plate 105 are arranged to form an eccentric ring or at least two "U"-shaped permanent magnet arrays distributed along the circumference and connected end to end, eccentric poles of different shapes can be formed at the bottom of the part 109 through the permanent magnets 106. When the driving device 107 drives the magnetic pole plate 105 to rotate, the permanent magnets 106 can generate pulsed magnetic fields of different frequencies, thereby changing the movement frequency of the part and further improving the surface quality of the part.

[0051] Obviously, those skilled in the art may make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A device for removing burrs from the outer surface of a rotating part, characterized in that: It includes a limiting container, a rotating cylinder, a grinding tool, a magnetic pole plate and a driving device; wherein: The limiting container and the rotating drum both have a cavity with an open top; the limiting container is used to limit the position of the rotating drum; The rotating drum can be freely slidably accommodated in the cavity of the limiting container, and the grinding tool is fixedly installed in the rotating drum and is filled with a cleaning agent containing abrasive media; The grinding tool is provided with a chute for placing the rotating part, and the surface of the chute is provided with an abrasive layer, and the length of the chute is greater than the axial length of the rotating part; The magnetic pole plate is relatively arranged at the bottom of the limiting container, and forms an eccentric magnetic pole through a plurality of permanent magnets fixedly installed on the top surface; The driving device is used to drive the magnetic pole plate to rotate around the vertical axis; When the driving device drives the magnetic pole plate to rotate, the pulsed magnetic field generated by the multiple permanent magnets drives the rotating body parts to rotate around the vertical axis and reciprocate along the slide groove, so that friction is generated between the outer surface of the workpiece and the grinding layer to remove burrs on the outer surface, and the workpiece is cleaned by the turbulent flushing of the cleaning agent.

2. The outer surface burr removal device according to claim 1, characterized in that: The chute is a V-shaped groove or an arc-shaped groove; The rotating body component is slidably supported in the slide groove.

3. The outer surface burr removal device according to claim 1, characterized in that: The abrasive layer is formed of elastic polymer abrasive.

4. The outer surface burr removal device according to claim 1, characterized in that: A plurality of permanent magnets are arranged on the top surface of the magnetic pole plate to form an eccentric ring.

5. The outer surface burr removal device according to claim 1, characterized in that: The plurality of permanent magnets form at least two "U"-shaped permanent magnet arrays distributed along the circumference of the magnetic pole plate, and adjacent "U"-shaped permanent magnet arrays are connected end to end in sequence.

6. The outer surface burr removal device according to claim 1, characterized in that: The rotating body part is a sliding valve sleeve.

7. The outer surface burr removal device according to claim 1, characterized in that: The limiting container, the rotating cylinder and the grinding tool are all made of non-metallic materials.

8. The outer surface burr removal device according to claim 7, characterized in that: The grinding tool is made of glass or acrylic material.

9. The outer surface burr removal device according to claim 1, characterized in that: The grinding medium is silicon carbide or boron nitride.

10. The outer surface burr removal device according to any one of claims 1 to 7, characterized in that: The driving device is a motor; The output shaft of the motor is arranged in the vertical direction; The magnetic pole plate is fixedly connected to the top end of the output shaft and is coaxial with the output shaft.

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