A device for texturing the surface of a part

Abstract

The application provides a part surface ornament grinding device, which comprises a reciprocating part and a one-way moving part of a moving slide, the reciprocating part is connected with the one-way moving part, one of the two is connected with a drag board, the reciprocating part comprises a bidirectional screw, the one-way moving part comprises a one-way screw, the one-way screw and the bidirectional screw are in transmission connection, a grinding head is rotationally connected to a rack and placed directly above the drag board, the rack comprises a top rod, the bidirectional screw or the one-way screw is in transmission connection with a cam, the outer circle of the cam comprises a lifting part and a falling part, the bottom end of the top rod abuts on the cam, and a driving motor is in transmission connection with the one-way screw or the bidirectional screw. The bidirectional screw and the one-way screw in transmission connection make the drag board do S-shaped movement, so that the grinding head can process on the surface of the part, meanwhile, the cooperation of the cam and the top rod makes the top rod drive the grinding head to separate from the part, so that the grinding head can move in a single direction on the surface of the part, and the processed ornament lines are the same.

Description

Technical Field

[0001] This invention belongs to the field of watch parts processing, and in particular relates to a device for polishing the surface texture of parts. Background Technology

[0002] In the manufacturing process of watch parts, in order to make the exposed parts of the watch movement more aesthetically pleasing and to represent a more refined workmanship, decorative patterns such as Geneva stripes and fish scale patterns are polished on the surface of the parts. Geneva stripes are usually multiple parallel waves, which are formed sequentially and unidirectionally on the surface of the plate by a grinding head. In the current processing, multiple motors or hydraulic cylinders are required to work with the grinding head to complete the processing according to a preset program, which makes the equipment more complex to use. Moreover, the use of multiple motors also increases the probability of equipment damage. When the speed of the motor is replaced or repaired, it needs to be readjusted, resulting in high equipment maintenance costs. Summary of the Invention

[0003] In view of this, the present invention aims to provide a surface texturing and polishing device for parts, which uses a motor to control the coordinated movement of the parts and the polishing tool during the texturing process.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A surface texturing polishing device for parts, comprising:

[0006] A motion slide includes a reciprocating motion part and a unidirectional motion part, the reciprocating motion part and the unidirectional motion part are connected, a slide is connected to the reciprocating motion part or the unidirectional motion part, the reciprocating motion part includes a bidirectional lead screw, the unidirectional motion part includes a unidirectional lead screw, and the unidirectional lead screw and the bidirectional lead screw are connected by a transmission.

[0007] A grinding head is rotatably connected to a frame and is positioned directly above a slide plate. The frame includes a push rod and a cam is driven by a two-way or one-way lead screw. The outer circle of the cam includes a lifting part and a lowering part. The bottom end of the push rod abuts against the cam, and the grinding head moves vertically by rotating the cam.

[0008] The drive motor is connected to a unidirectional or bidirectional lead screw.

[0009] Furthermore, this grinding device also includes a transmission gear ring, which includes a fully convex gear ring and a semi-convex gear ring, with the fully convex gear ring and the semi-convex gear ring respectively located on the inner and outer sides of the transmission gear ring; the one-way lead screw and the semi-convex gear ring are connected in a transmission manner, and the two-way lead screw is connected in a transmission manner to the fully convex gear ring, and when the grinding head is separated from the workpiece, the semi-convex gear ring can drive the one-way lead screw to rotate.

[0010] Furthermore, the axes of the unidirectional lead screw and the bidirectional lead screw are perpendicular to each other.

[0011] Furthermore, the cam and the transmission gear ring are coaxially connected, and the angle corresponding to the arc of the cam lifting part is the same as the angle corresponding to the arc of the semi-convex gear ring.

[0012] Furthermore, the motion slide is provided with two reversing switches on one side, which can control the rotation direction of the drive motor. The motion slide is provided with a contact on one side, and when the motion slide moves to the limit position along the length direction of the one-way lead screw, the contact can contact the reversing switch, causing the drive motor to rotate in the opposite direction.

[0013] Furthermore, a working motor is fixed on the frame, which drives the grinding head to rotate.

[0014] Furthermore, the frame includes a fixed base and an adjusting base, and the fixed base and the adjusting base are respectively provided with an adjusting groove and an adjusting block. The adjusting block is placed in the adjusting groove, and the top of the adjusting groove is provided with a hinge shaft. The adjusting block is rotatably connected to the hinge shaft, and a set screw passes through the adjusting groove and abuts against the adjusting block.

[0015] Furthermore, a connecting hole is provided on one end face of the adjusting seat, and the rotating shaft of the grinding head is rotatably connected to an adjusting plate. An arc-shaped slot is provided on the adjusting plate, and a bolt can pass through the arc-shaped slot and be screwed into the connecting hole, so that the adjusting plate and the adjusting seat are fixedly connected.

[0016] Furthermore, the plane containing the arc-shaped slot is parallel to the axis of the hinge shaft.

[0017] Furthermore, the bidirectional lead screw is coaxially connected to the output shaft of the drive motor, and the fully convex gear ring of the transmission gear ring is connected to the output shaft of the drive motor via a transmission shaft.

[0018] Compared with the prior art, the part surface texturing and polishing device of the present invention has the following advantages:

[0019] The present invention uses a bidirectional lead screw and a unidirectional lead screw with transmission connection to enable the slide to make an S-shaped movement in the horizontal plane, so that the grinding head can grind the surface of the part. At the same time, through the cooperation of the cam and the push rod, the push rod can drive the grinding head to separate from the part, so that the grinding head can move in a single direction on the surface of the part, resulting in the same surface texture.

[0020] By setting protruding teeth on both the inner and outer sides of the transmission ring, with one side of the protruding teeth set within a preset angle of the transmission ring, the semi-protruding tooth ring does not drive the one-way screw to rotate when the grinding head contacts the workpiece during transmission, thus preventing the rotation of the one-way screw during processing from causing a deviation in the relative motion direction between the grinding head and the workpiece.

[0021] Two reversing switches are used in conjunction to allow the slide to stop after moving along the unidirectional lead screw to its limit position and drive the motor to rotate in the opposite direction. This allows the operator to change parts while simultaneously processing the next part by moving the grinding head in the same direction. Attached Figure Description

[0022] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the grinding device;

[0024] Figure 2 This is a schematic diagram of the transmission part of the grinding device;

[0025] Figure 3 This is a schematic diagram showing the meshing relationship between the push rod, cam, and gear;

[0026] Figure 4 This is a schematic diagram showing the connection relationship between the adjusting seat and the adjusting plate;

[0027] Figure 5 This is a schematic diagram of the angle adjustment section in the frame.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-Frame; 11-Grinding head; 12-Fixed seat; 121-Adjusting groove; 122-Hinge shaft; 123-Setting screw; 13-Adjusting seat; 131-Adjusting block; 14-Adjusting plate; 141-Arc-shaped slot; 15-Top rod; 16-Working motor; 2-Motion slide; 21-Slide plate; 22-One-way lead screw; 23-Motion platform; 24-Figure-eight reversing lead screw; 25-Optical rod; 26-Reversing switch; 27-Contact; 3-Drive motor; 4-Transmission shaft; 5-Cam; 51-Lifting part; 52-Lowering part; 6-Transmission gear ring; 61-Full convex gear ring; 62-Semi-convex gear ring. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] The surface texturing grinding device for parts according to the present invention includes a slide plate 21 and a grinding head 11. During a single processing cycle, the grinding head 11 can move vertically, while the slide plate 21 moves along an S-shaped path in the horizontal plane to process a surface texturing pattern on the part. Specifically, the slide plate 21 is placed on a motion slide table 2, which includes a reciprocating motion section and a unidirectional motion section. The reciprocating motion section is connected to the unidirectional motion section. The reciprocating motion section includes a bidirectional lead screw, and the unidirectional motion section includes a unidirectional lead screw 22. The unidirectional lead screw 22 and the bidirectional lead screw are connected by a transmission. In this embodiment, the unidirectional lead screw 22 is connected to a motion platform 23 via a lead screw and nut pair. When the unidirectional lead screw 22 rotates, the motion platform 23 can move relative to the unidirectional lead screw 22 along its axial direction. The bidirectional lead screw is rotatably connected to the motion platform 23. The slide plate 21 is connected to the bidirectional lead screw via a lead screw and nut pair. When the bidirectional lead screw rotates, the slide plate 21 can reciprocate along its axial direction. In this embodiment, the axial directions of the unidirectional and bidirectional lead screws in the motion slide are perpendicular to each other, making the motion slide a cross slide. In other embodiments, depending on the processing requirements, the included angle between the unidirectional and bidirectional lead screws can be other degrees, or even an adjustable angle structure.

[0035] The surface texturing and polishing device for parts described in this invention also includes a drive motor 3. The output shaft of the drive motor 3 is coaxially connected to a bidirectional lead screw. The output shaft is connected to one end of a transmission shaft 4 through a pair of bevel gears. The other end of the transmission shaft 4 is provided with a gear. The transmission shaft 4 is connected to a transmission gear ring 6 through the gear. One side of the inner and outer sides of the transmission gear ring 6 is provided with a fully convex gear ring 61. The gear of the transmission shaft 4 meshes with the fully convex gear ring 61, driving the transmission gear ring 6 to rotate. The other side of the inner and outer sides of the transmission gear ring 6 is provided with a semi-convex gear ring 62. The convex teeth in the semi-convex gear ring 62 are placed on a portion of the arc of the transmission gear ring 6. The end of the unidirectional lead screw 22 is provided with a gear, and the gear can mesh with the transmission gear ring 6 through the semi-convex gear ring 62. When the transmission gear ring 6 rotates, the unidirectional lead screw 22 rotates in stages due to the setting of the semi-convex gear ring 62. During the rotation of the unidirectional lead screw 22, the motion platform 23 and the bidirectional lead screw move along the axial direction of the unidirectional lead screw 22. In order to avoid affecting the connection between the drive motor 3 and the bidirectional lead screw during the movement of the bidirectional lead screw, the body of the drive motor 3 is fixed on the motion platform 23, so that the drive motor 3 and the bidirectional lead screw move synchronously along the axial direction of the unidirectional lead screw 22. The gear at the end of the transmission shaft 4 away from the drive motor 3 is connected to the transmission ring and the transmission shaft 4 through its own thickness during the movement of the motor.

[0036] The surface texturing grinding device for parts described in this invention also includes a grinding head 11, which is rotatably connected to a frame 1. The frame 1 includes a push rod 15, and a cam 5 is driven by a bidirectional or unidirectional lead screw 22. The outer circle of the cam 5 includes a lifting part 51 and a lowering part 52. The bottom end of the push rod 15 abuts against the cam 5, and the rotation of the cam 5 drives the grinding head 11 to move vertically. In this embodiment, the cam 5 and the transmission gear ring 6 are coaxially connected through a flange. Optionally, the push rod 15 and the grinding head 11 are respectively placed at both ends of the frame 1, and the frame 1 can be used as a lever. When the push rod 15 moves downward, it drives the grinding head 11 to move upward, and when the push rod 15 moves upward, it drives the grinding head 11 to move downward. In this embodiment, the frame 1 is set on a vertically arranged slide rail, so that when the push rod 15 moves upward, the grinding head 11 moves upward synchronously, and when the push rod 15 moves downward, the grinding head 11 moves downward synchronously. The grinding head 11 is positioned directly above the slide plate 21, and the part is fixed on the slide plate 21. When the slide plate 21 moves along the first direction of the bidirectional lead screw, the grinding head 11 contacts the part, forming a decorative pattern on the part. When the slide plate 21 moves along the second direction of the bidirectional lead screw, the lifting part 51 of the cam 5 moves to below the push rod 15, causing the push rod 15 to drive the grinding head 11 upward, separating the grinding head 11 from the part. At the same time, the semi-internal gear ring meshes with the gear of the one-way lead screw 22, causing the part to be displaced along the axial direction of the one-way lead screw 22. When the slide plate 21 moves to its limit position along the second direction of the bidirectional lead screw, the descending part 52 of the cam 5 moves to below the push rod 15, causing the grinding head 11 to descend. At the same time, the semi-internal gear ring separates from the gear of the one-way lead screw 22. The slide plate 21 continues to move in the first direction under the drive of the bidirectional lead screw. The above process is repeated multiple times, so that the part completes the decorative pattern processing. To facilitate the cooperation between the push rod 15 and the cam 5, a roller is provided at the bottom end of the push rod 15. The push rod 15 can abut against the cam 5 by its own weight or by a spring provided on the push rod 15 that is positioned in the direction of the cam 5.

[0037] The figure-eight reversing screw 24 and the one-way screw 22 are respectively provided with guide rods 25 on both sides. The slide plate 21 and the motion platform 23 are respectively connected to the guide rods 25 on both sides of the figure-eight reversing screw 24 and the one-way screw 22. The guide rods 25 provide guidance for the slide plate 21 and the motion platform 23. A spring is sleeved on the guide rod 25. The spring can press tightly against the slide plate 21 or the motion platform 23, thereby eliminating the gap required for the slide plate 21 and the motion platform 23 to be screwed with the one-way screw 22 and the figure-eight reversing screw 24, making the slide plate 21 and the motion platform 23 more stable during the reciprocating motion.

[0038] The surface texturing and polishing device for parts described in this invention also includes two reversing switches 26. The two reversing switches 26 are located on one side of the moving slide 2 and distributed along the axial direction of the one-way lead screw 22. The reversing switches 26 can control the rotation direction of the motor. A contact 27 is provided on one side of the moving slide 2. When the moving slide 2 moves to its limit position along the length direction of the one-way lead screw 22, the contact 27 can contact the reversing switch 26, causing the drive motor 3 to rotate in the opposite direction. Simultaneously, the reversing switch 26 can also control the motor to stop rotating. Those skilled in the art should know that when the contact 27 contacts the reversing switch 26, the reversing switch 26 can send an electrical signal to the controller, which can then control the drive motor 3 to stop rotating and rotate in the opposite direction upon the next startup. Alternatively, the current can be changed by altering the circuit connection, thereby changing the rotation direction of the drive motor 3 when it stops and starts. The specific control methods are existing technologies and will not be elaborated here. In this embodiment, by setting two limit switches to change the rotation direction of the output shaft of the drive motor 3, the motion platform 23 reciprocates along the axial direction of the one-way lead screw 22, and stops when the motion platform 23 drives the slide plate 21 to the limit position at both ends of the one-way lead screw 22, so that the operator can change the parts to be processed.

[0039] The surface texturing grinding device for parts described in this invention also includes a working motor 16. The output shaft of the working motor 16 is connected to the rotating shaft of the grinding head 11 via a belt or synchronous belt. The working motor 16 can drive the grinding head 11 to rotate for a long time, or it can be controlled by a controller or current to stop rotating at the same time as the drive motor 3 stops rotating. The frame 1 includes a fixed base 12, an adjusting base 13, and an adjusting plate 14. The fixed base 12 and the adjusting base 13 are respectively provided with an adjusting groove 121 and an adjusting block 131. The adjusting block 131 is placed in the adjusting groove 121. The top end of the adjusting groove 121 is provided with a hinge shaft 122. The adjusting block 131 is rotatably connected to the hinge shaft 122. A set screw 123 passes through the adjusting groove 121 and abuts against the adjusting block 131. After the adjusting block 131 is adjusted to a preset angle, the angle of the adjusting base 13 can be fixed by the set screw 123. The adjusting seat 13 has a connecting hole on its end face away from the fixed seat 12. The adjusting plate 14 has an arc-shaped slot 141, through which a bolt can pass and be screwed to the connecting hole, thus fixing the adjusting plate 14 to the adjusting seat 13. In this embodiment, there are two arc-shaped slots 141 and two connecting holes, allowing the angle of the adjusting plate 14 to change through the cooperation of the two arc-shaped slots 141 and the connecting hole. The angle of the adjusting plate 14 can then be changed by tightening the bolt. The plane containing the arc-shaped slot 141 is parallel to the axis of the hinge shaft 122. The rotating shaft of the grinding head 11 is rotatably connected to the adjusting plate 14, and the angle of the rotating shaft is changed by the angle change of the adjusting seat 13 and the adjusting plate 14. The working motor 16 is fixed on the fixed block, and the push rod 15 is fixed to the fixed seat 12.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for polishing the surface texture of parts, characterized in that: include A motion slide includes a reciprocating motion part and a unidirectional motion part, the reciprocating motion part and the unidirectional motion part are connected, a slide is connected to the reciprocating motion part or the unidirectional motion part, the reciprocating motion part includes a bidirectional lead screw, the unidirectional motion part includes a unidirectional lead screw, and the unidirectional lead screw and the bidirectional lead screw are connected by a transmission. A grinding head is rotatably connected to a frame and is positioned directly above a slide plate. The frame includes a push rod and a cam is driven by a two-way or one-way lead screw. The outer circle of the cam includes a lifting part and a lowering part. The bottom end of the push rod abuts against the cam, and the grinding head moves vertically by rotating the cam. A drive motor, which is connected to a one-way or two-way lead screw drive; A transmission gear ring, comprising a fully convex gear ring and a semi-convex gear ring, wherein the fully convex gear ring and the semi-convex gear ring are respectively located on the inner and outer sides of the transmission gear ring; the one-way lead screw and the semi-convex gear ring are connected in a transmission connection, and the two-way lead screw is connected in a transmission connection with the fully convex gear ring; and when the grinding head is separated from the part, the semi-convex gear ring can drive the one-way lead screw to rotate.

2. The part surface texture grinding device according to claim 1, characterized in that: The axial directions of the unidirectional lead screw and the bidirectional lead screw are perpendicular to each other.

3. The part surface texturing grinding device according to claim 2, characterized in that: The cam and the transmission gear ring are coaxially connected, and the angle corresponding to the arc of the lifting part is the same as the angle corresponding to the arc of the semi-convex gear ring.

4. The part surface texture grinding device according to claim 1, characterized in that: Two reversing switches are provided on one side of the motion slide. The reversing switches can control the rotation direction of the drive motor. A contact is provided on one side of the motion slide. When the motion slide moves to the limit position along the length of the one-way lead screw, the contact can contact the reversing switch, causing the drive motor to rotate in the opposite direction.

5. The part surface texture grinding device according to claim 1, characterized in that: A working motor is fixed on the frame, which drives the grinding head to rotate.

6. A surface texturing polishing device for parts according to any one of claims 1-5, characterized in that: The frame includes a fixed block and an adjusting block. The fixed block and the adjusting block are respectively provided with an adjusting groove and an adjusting block. The adjusting block is placed in the adjusting groove. The top of the adjusting groove is provided with a hinge shaft. The adjusting block is rotatably connected to the hinge shaft. A set screw passes through the adjusting groove and abuts against the adjusting block.

7. The part surface texturing grinding device according to claim 6, characterized in that: The adjusting block has a connecting hole on one end face. The rotating shaft of the grinding head is connected to an adjusting plate. The adjusting plate has an arc-shaped slot. Bolts can pass through the arc-shaped slot and screw into the connecting hole, so that the adjusting plate and the adjusting block are fixedly connected.

8. The part surface texturing grinding device according to claim 7, characterized in that: The plane containing the arc-shaped slot is parallel to the axis of the hinge shaft.

9. The part surface texturing grinding device according to claim 1, characterized in that: The bidirectional lead screw is coaxially connected to the output shaft of the drive motor, and the fully convex gear ring of the transmission gear ring is connected to the output shaft of the drive motor through a transmission shaft.

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