Surface grinding device for metal part machining

Abstract

The utility model relates to the technical field of metal part machining, in particular to a surface polishing device for metal part machining, which comprises a motor, a rotating column is mounted at the output shaft end of the motor through a connecting mechanism, a cylindrical groove is formed in the front end of the rotating column, and a connecting column is attached to the inner wall of the cylindrical groove. A disc is fixedly connected to the front end of the connecting column, a plurality of connecting rods are rotationally connected to the outer wall of the disc around the center of the disc in an annular array mode, a plurality of connecting cylinders are fixedly connected to the position, close to the front edge, of the outer wall of the rotating column around the center of the rotating column in an annular array mode, and guide columns are slidably inserted into the connecting cylinders. When the inner surface of the short tubular metal part is polished, the center of the steel wire wheel always corresponds to the center of the short tubular metal part in the process that the steel wire wheel rotates and moves in the short tubular metal part, and therefore uneven polishing is avoided. And meanwhile, the device can be suitable for short tubular metal parts with different thicknesses, and the applicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of metal part processing, and particularly relates to a surface grinding device for metal part processing. Background Technique

[0002] During the process of processing metal parts, some burrs, sharp edges or rough surfaces may be generated, which not only affect the appearance of the parts, but may also cause damage to other parts or operators during the assembly process. Grinding can effectively remove these, making the parts smoother and safer.

[0003] For the grinding of short tubular metal parts, both the inner and outer surfaces need to be ground. For the grinding of the inner surface, a wire wheel is mostly used as the grinding medium. The wires on the surface of the wire wheel have a certain flexibility and can extend into short tubular parts with different thicknesses. The wire wheel will be installed on a handheld driving device to be driven to rotate.

[0004] However, when the wire wheel extends into the short tubular part, the operator needs to control the center of the wire wheel and the center of the short tubular metal part by himself. This will cause the wire wheel to deviate left and right and back and forth during the movement because of unstable manual control. The deviation of the center of the wire wheel and the center of the short tubular part will lead to uneven force of the wire wheel acting on the inner surface of the short tubular part, resulting in uneven grinding and affecting the product quality. For this reason, we propose a surface grinding device for metal part processing. Content of the Utility Model

[0005] The purpose of the utility model is to provide a surface grinding device for metal part processing to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A surface grinding device for metal part processing, including a motor, the output shaft end of the motor is installed with a rotating column through a connecting mechanism, a cylindrical groove is opened at the front end of the rotating column, a connecting column is attached to the inner wall of the cylindrical groove, a disc is fixedly connected to the front end of the connecting column, a plurality of connecting rods are rotatably connected to the outer wall of the disc around its center in a circumferential array, a plurality of connecting cylinders are fixedly connected to the outer wall of the rotating column around its center near the front edge in a circumferential array, guide columns are slidably inserted into the interiors of the plurality of connecting cylinders, balls are rotatably installed at the ends of the plurality of guide columns away from the rotating column, the ends of the plurality of connecting rods away from the disc are rotatably connected to connecting blocks, the plurality of connecting blocks are respectively slidably arranged in the inner walls of the plurality of connecting cylinders, and one ends of the plurality of connecting blocks are respectively fixedly connected to the outer walls of the plurality of guide columns. A locking mechanism is arranged between the connecting column and the rotating column, and a wire wheel is fixedly sleeved on the outer wall of the rotating column near the connecting cylinder.

[0007] Preferably, the connecting mechanism includes a hexagonal groove, a hexagonal block and a first knob screw. The hexagonal groove is formed at the rear end of the rotating column. The hexagonal block is fixedly connected to the output shaft end of the motor, and the hexagonal block is slidably engaged with the hexagonal groove. The first knob screw is inserted and tightened into the inner walls of the rotating column and the hexagonal block from top to bottom in sequence.

[0008] Preferably, the locking mechanism includes a concave plate and a sliding groove. The sliding groove is formed on the outer wall of the rotating column, and the sliding groove communicates with the cylindrical groove. A slider is attached to the inner wall of the sliding groove. The bottom end of the slider is fixedly connected to the outer wall of the rotating column near the rear edge. The concave plate is slidably inserted into the inner wall of the slider, and both ends of the concave plate are fixedly connected to the outer wall of the rotating column. Fasteners are provided between the two side walls of the slider and the concave plate.

[0009] Preferably, the fastener includes a screw sleeve. The screw sleeve is fixedly connected to the side wall of the slider, and a second knob screw is threadedly connected to the inner wall of the screw sleeve. The second knob screw is slidably inserted into the inner wall of the slider, and one end of the second knob screw is in close contact with the side wall of the concave plate.

[0010] Preferably, fixed blocks are fixedly connected to both the upper and lower ends of the motor. The two fixed blocks are jointly fixedly connected to an outer shell at the ends away from the motor. A plurality of anti-slip grooves are formed on the outer wall of the outer shell in a circumferential array around its center.

[0011] Preferably, a spring is fixedly connected between the rear end of the connecting column and the inner wall of the cylindrical groove.

[0012] Preferably, a clamping groove is formed on the outer wall of the connecting cylinder, and the connecting block is slidably engaged with the clamping groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the mutual cooperation of the motor, the connecting mechanism, the rotating column, the cylindrical groove, the connecting column, the disc, the connecting rod, the connecting cylinder, the guide post, the ball, the connecting block, the locking mechanism and the wire wheel, for the grinding of the inner surface of short tubular metal parts, during the rotation and movement of the wire wheel inside the short tubular metal parts, its center will always correspond to the center of the short tubular metal parts, thereby avoiding uneven grinding. At the same time, it can adapt to short tubular metal parts of different thicknesses, and has good applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the partial cross-sectional view of the rotating column and the outer shell of the present utility model;

[0016] Figure 3 is of the present utility model Figure 2Enlarged view of the structure at position A;

[0017] Figure 4 This is for the Figure 2 Enlarged view of the structure at position B;

[0018] Figure 5 Partial cross-sectional view of the connecting cylinder of this utility model.

[0019] In the attached drawings, the list of components represented by each reference numeral is as follows: 1. Connecting column; 2. Rotating column; 3. Slide block; 4. Concave plate; 5. Knob screw one; 6. Outer shell; 7. Anti-slip groove; 8. Motor; 9. Steel wire wheel; 10. Fixed block; 11. Cylindrical groove; 12. Spring; 13. Connecting cylinder; 14. Knob screw two; 15. Nut sleeve; 16. Hexagonal groove; 17. Hexagonal block; 18. Disc; 19. Connecting rod; 20. Connecting block; 21. Guide post; 22. Ball; 23. Card slot; 24. Sliding groove. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] The present utility model provides a technical solution: As Figures 1-5 shown, a surface grinding device for metal parts processing includes a motor 8. The output shaft end of the motor 8 is installed with a rotating column 2 through a connecting mechanism. A cylindrical groove 11 is opened at the front end of the rotating column 2. A connecting column 1 is attached to the inner wall of the cylindrical groove 11. The front end of the connecting column 1 is fixedly connected with a disc 18. A plurality of connecting rods 19 are rotatably connected to the outer wall of the disc 18 in a circumferential array around its center. A plurality of connecting cylinders 13 are fixedly connected to the outer wall of the rotating column 2 near the front edge in a circumferential array around its center. Guide posts 21 are slidably inserted into the interiors of the plurality of connecting cylinders 13. Balls 22 are rotatably installed at the ends of the plurality of guide posts 21 away from the rotating column 2. The ends of the plurality of connecting rods 19 away from the disc 18 are rotatably connected with connecting blocks 20. The plurality of connecting blocks 20 are respectively slidably arranged in the inner walls of the plurality of connecting cylinders 13, and one ends of the plurality of connecting blocks 20 are respectively fixedly connected to the outer walls of the plurality of guide posts 21. A locking mechanism is provided between the connecting column 1 and the rotating column 2. A steel wire wheel 9 is fixedly sleeved on the outer wall of the rotating column 2 near the connecting cylinder 13.

[0022] The connecting mechanism includes a hexagonal groove 16, a hexagonal block 17 and a first knob screw 5. The hexagonal groove 16 is opened at the rear end of the rotating column 2. The hexagonal block 17 is fixedly connected to the output shaft end of the motor 8, and the hexagonal block 17 is slidably engaged with the hexagonal groove 16. The first knob screw 5 is inserted and tightened into the inner walls of the rotating column 2 and the hexagonal block 17 from top to bottom in sequence.

[0023] The locking mechanism includes a concave plate 4 and a sliding groove 24. The sliding groove 24 is opened on the outer wall of the rotating column 2, and the sliding groove 24 communicates with the cylindrical groove 11. The inner wall of the sliding groove 24 is attached with a slider 3. The bottom end of the slider 3 is fixedly connected to the outer wall of the rotating column 2 near the rear edge. The concave plate 4 is slidably inserted into the inner wall of the slider 3, and both ends of the concave plate 4 are fixedly connected to the outer wall of the rotating column 2. Fasteners are provided between the two side walls of the slider 3 and the concave plate 4.

[0024] The fastener includes a screw sleeve 15. The screw sleeve 15 is fixedly connected to the side wall of the slider 3, and a second knob screw 14 is threadedly connected to the inner wall of the screw sleeve 15. The second knob screw 14 is slidably inserted into the inner wall of the slider 3, and one end of the second knob screw 14 is in close contact with the side wall of the concave plate 4.

[0025] Fixed blocks 10 are fixedly connected to both the upper and lower ends of the motor 8. The ends of the two fixed blocks 10 away from the motor 8 are jointly fixedly connected to a housing 6. A plurality of anti-slip grooves 7 are annularly arranged around the center on the outer wall of the housing 6. Specifically, the setting of the anti-slip grooves 7 can increase the friction between the hand of the operator and the housing 6 when holding the housing 6.

[0026] A spring 12 is fixedly connected between the rear end of the connecting column 1 and the inner wall of the cylindrical groove 11.

[0027] A clamping groove 23 is opened on the outer wall of the connecting cylinder 13. The connecting block 20 is slidably engaged with the clamping groove 23. Specifically, by providing the clamping groove 23, it is convenient for the connecting block 20 to slide in the inner wall of the connecting cylinder 13.

[0028] Working principle: First, metal parts of short tubular types are fixed by existing fixtures for easy grinding. Then, hold the outer shell 6 and insert the wire wheel 9 into the tube. The wires on the surface of the wire wheel 9 will be extruded and deformed into the tube. Then, turn two knob screws two 14 outward in sequence. The end parts of the two knob screws two 14 will respectively leave the two side surfaces of the concave plate 4. At this time, the spring 12 that was originally in a stretched state will retract, driving the connecting column 1 to slide inward in the cylindrical groove 11. The connecting column 1 will drive the slider 3 to slide in the sliding groove 24, and the slider 3 will also slide outside the concave plate 4. At the same time, the connecting column 1 can also drive the disc 18 to move closer to the rotating column 2. The disc 18 can drive multiple connecting rods 19 to rotate upward synchronously. Each connecting rod 19 will drive the corresponding connecting block 20 connected to it to slide away from the rotating column 2 in the corresponding connecting cylinder 13. The connecting block 20 can drive the guide post 21 to slide away from the rotating column 2 in the connecting cylinder 13 until the guide post 21 drives the ball 22 at its end to fit against the inner wall of the short tubular metal part. At this time, the two knob screws two 14 can be tightened in sequence to fix the slider 3 outside the concave plate 4, and multiple guide posts 21 will also be fixed. At this time, the centers of the connecting column 1, the rotating column 2, the wire wheel 9, and the short tubular metal part will be corresponding.

[0029] Then hold the outer shell 6 and insert the hexagonal block 17 on the motor 8 into the hexagonal groove 16 at the rear end of the rotating column 2, and tighten the knob screw one 5 in the rotating column 2 and the hexagonal block 17, then the connection between the motor 8 and the rotating column 2 can be achieved. Then start the motor 8 to drive the rotating column 2, the wire wheel 9, etc. to rotate. Then move the wire wheel 9 forward to drive the wire wheel 9 to grind the inner surface of the short tubular metal part. At this time, under the limitation of multiple balls 22, the multiple balls 22 will roll on the inner surface of the short tubular metal part, and the center of the wire wheel 9 will always correspond to the center of the short tubular metal part, thus achieving the effect of uniform grinding.

[0030] It should be noted that under the action of the spring 12, the sliding distance of the connecting column 1 in the cylindrical groove 11 is always until multiple balls 22 fit against the inner surface of the short tubular metal part, so that it can quickly adapt to short tubular metal parts of different sizes, thus facilitating the grinding of the inner surfaces of short tubular metal parts of different sizes.

[0031] It also should be noted that since the motor 8 is installed at the end of the rotating column 2 later, when the balls 22 just come into contact with the inner surface of the short tubular metal part, it can avoid the lower balls 22 being squeezed against the inner surface of the short tubular metal part due to the weight of the motor 8, avoid the guide post 21 sliding back in the connecting cylinder 13, avoid the connecting rod 19 rotating back, and avoid the connecting column 1 sliding outward in the cylindrical groove 11.

[0032] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface grinding device for metal parts processing, comprising a motor (8), characterized in that: The output shaft end of the motor (8) is provided with a rotating column (2) through a connecting mechanism, the front end of the rotating column (2) is provided with a cylindrical groove (11), the inner wall of the cylindrical groove (11) is fitted with a connecting column (1), the front end of the connecting column (1) is fixedly connected with a disk (18), the outer wall of the disk (18) is connected to a plurality of connecting rods (19) in a rotating manner around its center circular array, the outer wall of the rotating column (2) is fixedly connected to a plurality of connecting cylinders (13) in a circular array around its center near the front edge, and guide columns (21) are slidably inserted into the interior of the plurality of connecting cylinders (13). ), a ball (22) is embedded and rotatably mounted at one end of each of the guide pillars (21) away from the rotating pillar (2), a connecting block (20) is rotatably connected to one end of each of the connecting rods (19) away from the disc (18), the connecting blocks (20) are slidably arranged in the inner walls of the connecting cylinders (13), and one end of each of the connecting blocks (20) is fixedly connected to the outer walls of the guide pillars (21), a locking mechanism is provided between the connecting pillar (1) and the rotating pillar (2), and a wire wheel (9) is fixedly sleeved on the outer wall of the rotating pillar (2) near the connecting cylinder (13).

2. A surface grinding device for metal parts processing according to claim 1, characterized in that: The connecting mechanism comprises a hexagonal slot (16), a hexagonal block (17) and a knob screw (5); the hexagonal slot (16) is arranged at the rear end of the rotating column (2); the hexagonal block (17) is fixedly connected to the output shaft end of the motor (8), and the hexagonal block (17) and the hexagonal slot (16) are slidably matched; the knob screw (5) is sequentially inserted into and tightened in the inner walls of the rotating column (2) and the hexagonal block (17) from top to bottom.

3. The surface grinding device for metal parts processing according to claim 1, characterized in that: The locking mechanism comprises a concave plate (4) and a sliding groove (24); the sliding groove (24) is provided on the outer wall of the rotating column (2), and the sliding groove (24) and the columnar groove (11) are communicated with each other; a slider (3) is fitted on the inner wall of the sliding groove (24); the bottom end of the slider (3) is fixedly connected to the outer wall of the rotating column (2) near the rear edge; the concave plate (4) is slidably inserted into the inner wall of the slider (3), and both ends of the concave plate (4) are fixedly connected to the outer wall of the rotating column (2); and fasteners are provided between the two side walls of the slider (3) and the concave plate (4).

4. A surface grinding device for metal parts processing according to claim 3, characterized in that: The fastener comprises a screw sleeve (15), the screw sleeve (15) is fixedly connected to the side wall of the slider (3), and the inner wall of the screw sleeve (15) is threadedly connected with a knob screw 2 (14), the knob screw 2 (14) is slidably inserted into the inner wall of the slider (3), and one end of the knob screw 2 (14) is tightly fitted with the side wall of the concave plate (4).

5. The surface grinding device for metal parts processing according to claim 1, characterized in that: The upper and lower ends of the motor (8) are fixedly connected to fixed blocks (10), and the ends of the two fixed blocks (10) away from the motor (8) are commonly fixedly connected to a housing (6), and the outer wall of the housing (6) is provided with a plurality of anti-slip grooves (7) in a circular array around its center.

6. The surface grinding device for metal parts processing according to claim 1, characterized in that: A spring (12) is fixedly connected between the rear end of the connecting column (1) and the inner wall of the cylindrical groove (11).

7. The surface grinding device for metal parts processing according to claim 1, characterized in that: The outer wall of the connecting tube (13) is provided with a clamping groove (23), and the connecting block (20) is slidably matched with the clamping groove (23).

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