Polishing machine for mechanical parts

Abstract

The utility model discloses a polishing machine for mechanical parts, which relates to the technical field of polishing machinery and comprises a base, a polishing unit and a jacking unit are arranged on the base, the polishing unit comprises a stand column, an auxiliary wheel is arranged at one end of the stand column, a driving wheel is arranged at the other end of the stand column, a first driving motor is arranged on the driving wheel, and a tensioning wheel is arranged on the stand column. A polishing belt is wound on the auxiliary wheel, the tensioning wheel and the driving wheel, the jacking unit comprises a sliding seat and a jacking plate, two jacking pieces are arranged on the sliding seat, each jacking piece is of a right triangle structure, a pulley is arranged on each jacking piece in a sliding mode, the pulleys are installed on one side of the jacking plate, a guide mechanism is arranged between the jacking plate and the base, and an elastic mechanism is arranged on the other side of the jacking plate. The elastic mechanism is elastically and horizontally connected with a carrying plate; a threaded hole is formed in the jacking piece in a penetrating mode, a lead screw is arranged in the threaded hole, and a second driving motor is arranged at one end of the lead screw. According to the utility model, the elastic adjustment of the polishing distance is realized, the excessive polishing is prevented, and the polishing quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing machines, in particular to a polishing machine for mechanical parts. Background Art

[0002] Polishing machines, also known as grinders, are often used for mechanical grinding, polishing and waxing. Their working principle is: the motor drives the sponge or wool polishing disc installed on the polishing machine to rotate at high speed. Due to the combined action of the polishing disc and the polishing agent and the friction with the surface to be polished, the paint surface pollution, oxide layer and shallow marks can be removed.

[0003] The existing polishing machine cannot adjust its polishing distance, which limits the application range of the polishing machine, making it unable to meet the polishing of objects of different specifications and polishing work with special requirements, affecting its polishing efficiency.

[0004] The existing publication number is CN 215092819 U and the publication date is 2021.12.10. It discloses a polishing device for mechanical manufacturing that is convenient for adjusting the polishing distance, including a base, a support seat is installed above the base; a support plate is installed above the support seat; a slide groove is opened inside the support plate; a slide rail is fixedly installed inside the slide groove; an adjusting screw rod is arranged at the front end of the support seat; a polishing table is installed above the adjusting screw rod; a connecting shaft is arranged on the left side of the support plate; a connecting rod is installed on the left side of the connecting shaft;

[0005] The polishing device of the utility model is provided with a support plate and a polishing table connected by an adjusting screw. The spacing between the support plate and the polishing table is adjusted by rotating the adjusting screw, thereby adjusting the polishing distance between the polishing table and the polishing roller to meet different polishing requirements.

[0006] However, while solving the polishing spacing, this patent also creates a new problem: the polishing device can adjust the polishing spacing thanks to the adjusting screw, but this spacing adjustment is a rigid adjustment. When the spacing is adjusted too small, the pressure between the polishing wheel and the workpiece will increase. Polishing under such conditions will cause excessive polishing. This polishing essentially becomes a grinding and cutting effect on the workpiece base material, which in turn causes the workpiece thickness to become thinner. When the polishing spacing is large, the contact between the polishing wheel and the workpiece surface is insufficient, which will increase the polishing time and reduce the polishing efficiency.

[0007] Therefore, there is an urgent need for a polishing machine for mechanical parts, which can realize the elastic adjustment of the polishing interval, prevent excessive polishing, and improve the polishing quality and efficiency of the workpiece. Utility Model Content

[0008] In response to the above technical problems, the utility model provides a polishing machine for mechanical parts, which is used to solve the problem that the existing polishing device can only adjust the polishing distance rigidly. When the distance is adjusted too small, the pressure between the polishing wheel and the workpiece will increase, resulting in excessive polishing. When the polishing distance is large, the contact between the polishing wheel and the workpiece surface is insufficient, which will increase the polishing time and reduce the polishing efficiency and quality.

[0009] The above technical objectives of the present invention are achieved through the following technical solutions:

[0010] A polishing machine for mechanical parts, comprising a base, a polishing unit and a lifting unit being provided on the base, the polishing unit comprising a column, an auxiliary wheel being provided at one end of the column, a driving wheel being provided at the other end of the column, a first driving motor being provided on the driving wheel, a tensioning wheel being provided between the auxiliary wheel and the driving wheel, a polishing belt being wound around the auxiliary wheel, the tensioning wheel and the driving wheel, the lifting unit comprising a slide and a lifting plate, two lifting members being symmetrically provided on the slide, the lifting members being a right-angled triangle structure, a pulley being slidably provided on the hypotenuse of the lifting member, the pulley being mounted on one side of the lifting plate, a guide mechanism being provided between the lifting plate and the base, an elastic mechanism being provided on the other side of the lifting plate, a loading plate being elastically and horizontally connected to the elastic mechanism;

[0011] The lifting member is provided with a driving hole along the length direction of the slide, a screw rod is provided in the driving hole, and a second driving motor is provided at one end of the screw rod. The two lifting members move toward each other along the slide under the action of the screw rod.

[0012] Furthermore, the elastic mechanism includes several guide columns and elastic parts. The guide columns are fixed to one side of the loading plate. The elastic parts are mounted on the guide columns. The lifting plate has guide holes at positions corresponding to the guide columns. The guide columns are inserted into the guide holes.

[0013] Furthermore, the guide mechanism includes guide rods arranged at the four corners of the lifting plate, guide sleeves are sleeved on the guide rods, and the guide sleeves are fixedly arranged on the base.

[0014] Furthermore, the polishing unit also includes a slide rail arranged on the base, a slide plate is slidably provided on the slide rail, the column is vertically arranged on the slide plate, a threaded sleeve is provided on the slide plate, a lead screw is provided on the threaded sleeve, and a third drive motor is provided at one end of the lead screw.

[0015] Furthermore, a clamping arm is provided at one end of the carrier plate, a plurality of threaded holes are equidistantly provided on the clamping arm, clamping bolts are provided in the threaded holes, at least one T-shaped slide is provided at the other end of the carrier plate, the carrier plate slides through the T-shaped slide and is provided with a T-shaped brake, a stop arm is provided on the T-shaped brake, and the height of the stop arm and the clamping arm is less than the thickness of the workpiece.

[0016] Furthermore, the lifting member is provided with limiting plates on both sides of the pulley.

[0017] Furthermore, an anti-dropping piece is detachably provided on one end of the guide column away from the loading plate.

[0018] In summary, the beneficial technical effects of the present invention are:

[0019] (1) The second driving motor is used to drive the two lifting members to move toward each other along the slide through the screw rod, so that the pulley can change its position along the oblique edge of the lifting member. The pulley further acts on the carrier plate to achieve the first adjustment of the distance between the carrier plate and the polishing belt. At the same time, the elastic member and the guide column are used to provide elasticity for the carrier plate to provide compensation for the first distance adjustment, thereby achieving elastic adjustment, avoiding excessive increase in pressure between the polishing belt and the workpiece surface, preventing excessive polishing, and also enabling the workpiece to achieve close fit with the polishing belt, thereby improving the efficiency and quality of polishing.

[0020] (2) The polishing belt is moved along the workpiece for polishing by using a slide rail in conjunction with a third drive motor and a lead screw. Driven by the third drive motor, the workpiece can be polished at a uniform speed, thus avoiding the movement setbacks caused by the cylinder and improving the polishing accuracy and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 yes Figure 1 Schematic diagram from another angle;

[0023] Figure 3 yes Figure 1 Structural diagram from the third angle;

[0024] Figure 4 yes Figure 1 Structural diagram from the fourth angle;

[0025] Figure 5 It is a structural diagram of the jacking part;

[0026] Figure 6 yes Figure 3 A magnified schematic diagram of part A.

[0027] 1. Base; 2. Column; 3. Lifting plate; 4. Loading plate; 5. Auxiliary wheel; 6. Driving wheel; 7. Tensioning pulley; 8. Polishing belt; 9. First driving motor; 10. Second driving motor; 11. Third driving motor; 12. Slide seat; 13. Slide groove; 14. Lifting member; 15. Sliding block; 16. Driving hole; 17. Pulley; 18. Screw; 19. Limiting plate; 20. Guide rod; 21. Guide sleeve; 22. Guide column; 23. Elastic member; 24. Clamping arm; 25. Threaded hole; 26. Clamping bolt; 27. T-type slideway; 28. T-type brake member; 29. ​​Stop arm; 30. Anti-slip member; 31. Slide rail; 32. Slide plate; 33. Threaded sleeve; 34. Screw; 35. Rib plate; 36. Avoidance; 37. Workpiece. DETAILED DESCRIPTION

[0028] The present invention will be described clearly and completely below with reference to the embodiments.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In the description of the embodiments, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections, connections through an intermediary medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on their specific circumstances.

[0031] See attached Figures 1-6 , shown is a polishing machine for mechanical parts, comprising a base 1, on which a polishing unit and a lifting unit are provided. The polishing unit comprises a column 2, on which an auxiliary wheel 5, a tensioning wheel 7, and a driving wheel 6 are provided in order from top to bottom. The driving wheel 6 is equipped with a first driving motor 9. A polishing belt 8 is wound around the auxiliary wheel 5, the tensioning wheel 7, and the driving wheel 6. During polishing, the polishing belt 8 is driven by the first driving motor 9 to rotate to polish a workpiece 37.

[0032] The lifting unit includes a slide 12 and a lifting plate 3, wherein the slide 12 is arranged along the length direction of the base 1, and a slide groove 13 is provided on the slide 12. The slide 12 is symmetrically provided with a lifting member 14 through the slide groove 13. The lifting member 14 is a right triangle structure as a whole, and the lifting member 14 is located on the hypotenuse and is provided with a pulley 17 for sliding. The pulley 17 is rotatably mounted on one side of the lifting plate 3. The two lifting members 14 are provided with a driving hole 16 along the length direction. The driving hole 16 is provided with a screw rod 18 through a thread. The screw rod 18 is symmetrically provided with a thread with the length center as the dividing line. The screw rod 1 A second drive motor 10 is provided at one end of 8. When the screw rod 18 rotates forward and backward under the drive of the second drive motor 10, the two jacking members 14 move toward each other along the slide groove 13. At this time, the pulley 17 uses the hypotenuse of the jacking member 14 as the sliding path to achieve the change of the height position. In addition, a guide rod 20 is provided at each corner of the jacking plate 3. A guide sleeve 21 is sleeved on the guide rod 20. The guide sleeve 21 is fixed to the base 1. When the pulley 17 slides along the jacking member 14, the pulley 17 further drives the jacking plate 3 to achieve lifting and lowering under the cooperation of the guide rod 20 and the guide sleeve 21;

[0033] Furthermore, an elastic mechanism is provided on the other side of the lifting plate 3, wherein the elastic mechanism includes a plurality of guide posts 22, one end of which is horizontally provided with a loading plate 4, and an elastic member 23 is sleeved on the guide post 22, and the elastic member 23 is a compression spring. A guide hole is opened at a position corresponding to the guide post 22 on the lifting plate 3, and the guide post 22 is placed in the guide hole, and the length of the guide post 22 is less than the length of the guide sleeve 21;

[0034] It can be seen that when the second drive motor 10 drives the two lifting members 14 to move toward each other via the screw rod 18, the carrier plate 4 is further driven to adjust the distance between the carrier plate 4 and the polishing belt 8. At the same time, when the polishing belt 8 acts on the carrier plate 4, the elastic member 23 changes the contact between the carrier plate 4 and the polishing belt 8 from rigidity to elasticity, and the polishing distance is changed to elastic adjustment, thereby avoiding excessive increase in surface pressure between the polishing belt 8 and the workpiece 37 and preventing excessive polishing. At the same time, it can also enable the workpiece 37 to achieve close contact with the polishing belt 8, thereby improving the efficiency and quality of polishing.

[0035] Furthermore, the polishing unit also includes a slide rail 31 provided on the base 1, a slide plate 32 is slidably provided on the slide rail 31, the column 2 is welded to the slide plate 32, and a threaded sleeve 33 is provided on the slide plate 32 along the length of the slide rail 31, a lead screw 34 is provided in the threaded sleeve 33, and a third drive motor 11 is provided at one end of the lead screw 34. During polishing, the third drive motor 11 drives the column 2 to move along the slide rail 31 via the lead screw 34 to polish the workpiece 37 on the carrier plate 4;

[0036] Furthermore, in order to increase the connection strength between the column 2 and the slide 32, a rib 35 is provided between the column 2 and the slide 32. The rib 35 is provided with an escape opening 36 at the position of the threaded sleeve 33.

[0037] Furthermore, a clamping arm 24 is provided at one end of the carrier plate 4. A plurality of threaded holes 25 are equidistantly provided on the clamping arm 24. Clamping bolts 26 are provided in the threaded holes 25. Two T-shaped slideways 27 are provided at the other end of the carrier plate 4. The carrier plate 4 slides along the T-shaped slideways 27 and is provided with a T-shaped brake 28. The T-shaped brake has a screw with a brake nut. A stop arm 29 is provided on the T-shaped brake 28. The height of the stop arm 29 and the clamping arm 24 is less than the thickness of the workpiece 37. This prevents the polishing belt 8 from interfering with the stop arm 29 and the clamping arm 24, thereby preventing normal polishing.

[0038] Furthermore, in order to prevent the pulley 17 from falling off the lifting member 14, the lifting member 14 is provided with limiting plates 19 on both sides of the pulley 17;

[0039] Furthermore, in order to prevent the guide post 22 from falling out of the guide hole, an anti-falling member 30 is threadedly connected to one end of the guide post 22 .

[0040] During use, first, according to the length of the workpiece 37, use the T-shaped brake 28 and the nut to adjust the distance between the stop arm 29 and the clamping arm 24, then place the workpiece 37 between the clamping arm 24 and the stop arm 29, and then use the clamping bolt 26 to clamp the workpiece 37, then start the second drive motor 10 and use the screw 34 to drive the two lifting parts 14 to move towards each other. At this time, the workpiece 37 is in contact with the polishing belt 8 under the action of the pulley 17, and the elastic part 23 generates a certain amount of elastic force, then start the first drive motor 9 to drive the polishing belt 8 to rotate to polish the workpiece 37, and at the same time start the third drive motor 11 and use the screw 34 to drive the polishing belt 8 to achieve reciprocating polishing of the workpiece 37.

[0041] The above description is only a preferred specific embodiment of the present invention and does not limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A polishing machine for mechanical parts, comprising a base (1), wherein the base (1) is provided with a polishing unit and a lifting unit, wherein the polishing unit comprises a column (2), wherein one end of the column (2) is provided with an auxiliary wheel (5), and the other end of the column (2) is provided with a driving wheel (6), wherein the driving wheel (6) is provided with a first driving motor (9), wherein the column (2) is provided with a tensioning wheel (7) between the auxiliary wheel (5) and the driving wheel (6), and wherein a polishing belt (8) is wound around the auxiliary wheel (5), the tensioning wheel (7), and the driving wheel (6), wherein: The lifting unit comprises a slide (12) and a lifting plate (3), two lifting members (14) are symmetrically provided on the slide (12), the lifting members (14) are of a right-angled triangle structure, a pulley (17) is slidingly provided on the hypotenuse of the lifting member (14), the pulley (17) is installed on one side of the lifting plate (3), a guide mechanism is provided between the lifting plate (3) and the base (1), an elastic mechanism is provided on the other side of the lifting plate (3), and a loading plate (4) is elastically and horizontally connected to the elastic mechanism; The lifting member (14) is provided with a driving hole (16) along the length direction of the slide (12), a screw rod (18) is provided in the driving hole (16), and a second driving motor (10) is provided at one end of the screw rod (18). The two lifting members (14) move toward each other along the slide (12) under the action of the screw rod (18).

2. A polishing machine for mechanical parts according to claim 1, characterized in that: The elastic mechanism comprises a plurality of guide posts (22) and elastic members (23), wherein the guide posts (22) are fixed to one side of the loading plate (4), and the elastic members (23) are sleeved on the guide posts (22). The lifting plate (3) is provided with guide holes at positions corresponding to the guide posts (22), and the guide posts (22) are inserted into the guide holes.

3. The polishing machine for mechanical parts according to claim 1, characterized in that: The guide mechanism comprises guide rods (20) arranged at the four corners of the lifting plate (3), guide sleeves (21) are sleeved on the guide rods (20), and the guide sleeves (21) are fixedly arranged on the base (1).

4. The polishing machine for mechanical parts according to claim 1, characterized in that: The polishing unit further comprises a slide rail (31) arranged on the base (1), a slide plate (32) is slidably provided on the slide rail (31), the column (2) is vertically arranged on the slide plate (32), a threaded sleeve (33) is provided on the slide plate (32), a lead screw (34) is matched with the threaded sleeve (33), and a third drive motor (11) is provided at one end of the lead screw (34).

5. The polishing machine for mechanical parts according to claim 1, characterized in that: A clamping arm (24) is provided at one end of the carrier plate (4), a plurality of threaded holes (25) are equidistantly provided on the clamping arm (24), a clamping bolt (26) is provided in the threaded hole (25), at least one T-shaped slideway (27) is provided at the other end of the carrier plate (4), the carrier plate (4) is slidably provided with a T-shaped brake member (28) through the T-shaped slideway (27), a stop arm (29) is provided on the T-shaped brake member (28), and the height of the stop arm (29) and the clamping arm (24) is less than the thickness of the workpiece (37).

6. The polishing machine for mechanical parts according to claim 1, characterized in that: The lifting member (14) is provided with limiting plates (19) on both sides of the pulley (17).

7. The polishing machine for mechanical parts according to claim 2, characterized in that: An end of the guide column (22) away from the loading plate (4) is detachably provided with an anti-dropping part (30).

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