Watchcase rough polishing machine

Abstract

The utility model provides a coarse polishing machine for a watchcase. The coarse polishing machine comprises a machine base, a clamping mechanism and a polishing mechanism. The polishing mechanism is installed on the rear portion of the machine base. The device further comprises a YZ-axis moving mechanism. The clamping mechanism is installed on the machine base through the YZ-axis moving mechanism. The clamping mechanism comprises a support, a first hollow rotating platform, a connecting base, a second hollow rotating platform, a connecting frame, an elastic inner supporting chuck, an elastic inner supporting assembly and an air cylinder. The first hollow rotating platform is installed on the support, and the power output end is connected with the connecting base. The second hollow rotating platform is installed on the left side of the connecting base, and the power output end is connected with the elastic inner supporting chuck. The connecting frame is fixed on the right side of the connecting seat; the elastic inner supporting assembly comprises a pull rod, a spring and a limiting nut. The pull rod penetrates into the elastic inner support chuck from the right side of the connecting frame; the pull rod is rotationally connected to the connecting frame; the spring and the limiting nut are sequentially mounted at the right end of the pull rod; the cylinder is fixed on the connecting frame and positioned on the right side of the pull rod.

Description

Technical Field

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

[0002] When processing a metal watch case, its surface needs to be polished. Since the watch case has a curved surface structure, it is usually difficult to polish all parts of its outer surface in one clamping, and the control requirements for the position of the watch case are also high, otherwise the processing accuracy will be affected. In addition, for the clamping of the watch case, the watch case has a hollow structure. Since the outer surface of the watch case needs to be polished, it needs to be fixed by internal support. However, if the internal support is too strong, it will easily cause deformation or damage to the workpiece. Utility Model Content

[0003] The utility model aims to provide a watch case rough polishing machine to solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A watch case rough polishing machine, comprising a machine base, a clamping mechanism and a grinding mechanism; the grinding mechanism is installed at the rear of the machine base; it also comprises a YZ axis moving mechanism; the YZ axis moving mechanism comprises a Y axis driving module, a mounting plate, a sliding frame and a Z axis driving device; the Y axis driving module is installed on the machine base; the left part of the mounting plate is installed at the power output end of the Y axis driving module, and the right part is connected to the machine base through a first slide rail pair; a hollow hole is provided in the middle of the mounting plate; the sliding frame is located at the position of the hollow hole; the front and rear sides of the sliding frame are respectively connected to the mounting plate through a second slide rail pair; the Z axis driving device is installed between the mounting plate and the sliding frame, and is used to control the up and down movement of the sliding frame;

[0006] The clamping mechanism includes a bracket, a first hollow rotating platform, a connecting seat, a second hollow rotating platform, a connecting frame, an elastic inner support chuck, an elastic inner support assembly and a cylinder; the bracket is fixed above the sliding frame; the first hollow rotating platform is installed on the bracket and the power output end is connected to the connecting seat, which is used to control the rotation of the connecting seat around the Y axis; the second hollow rotating platform is installed on the left side of the connecting seat and the power output end is connected to the elastic inner support chuck, which is used to control the rotation of the elastic inner support chuck around the X axis; the connecting frame is fixed on the right side of the connecting frame; the elastic inner support assembly includes a pull rod, a spring and a limit nut; the pull rod passes through the connecting frame, the connecting seat, the second hollow rotating platform and the elastic inner support chuck in sequence from the right side of the connecting frame; the pull rod is rotatably connected to the connecting frame; the spring and the limit nut are sequentially installed on the right end of the pull rod; the cylinder is fixed on the connecting frame and is located on the right side of the pull rod; the cylinder is used to touch the pull rod to move to the left.

[0007] Further description of the utility model, the Z-axis drive device includes a motor seat, a motor, a gear and a rack; the motor seat is fixed to the bottom of the front end of the mounting plate; the motor is fixed on the motor seat and the power output end is connected to the gear; the rack is vertically installed on the sliding frame and meshes with the gear.

[0008] Further description of the utility model, the second slide rail pairs are arranged in four groups and are installed at four corners between the sliding frame and the mounting plate; each group of the second slide rail pairs includes two slider supports, two sliders and a slide rail; the two slider supports are respectively fixed on the upper and lower sides of the mounting plate; the slider is fixed on the slider supports; the slide rail is fixed on the sliding frame and cooperates with the two sliders.

[0009] Further description of the utility model: a bearing and a bearing limit block are installed on the connecting frame; the pull rod is connected to the bearing; and two ends of the spring respectively contact the bearing and the limit nut.

[0010] Further description of the utility model, the elastic inner support chuck is provided with four inner support blocks; the outer side of each inner support block is provided with a positioning protrusion protruding to the left.

[0011] Further description of the utility model further includes a tailstock; the tailstock is fixed on the sliding frame and is located on the left side of the clamping mechanism.

[0012] Further description of the utility model, the grinding mechanism includes a base, a cylinder and a grinding assembly; the base is fixed on the machine base; the cylinder is installed on the base and the power output end is connected to the grinding assembly for controlling the left and right movement of the grinding assembly; the grinding assembly is connected to the base through a third slide rail pair.

[0013] The beneficial effects of the utility model are:

[0014] The present invention controls the forward and backward and up and down movement of the clamping mechanism through the YZ-axis moving mechanism, wherein the Y-axis driving module controls the forward and backward movement of the mounting plate, driving the sliding frame connected thereto to move forward and backward. The sliding frame of the present invention is located in the hollow hole of the mounting plate and is connected and cooperated with the mounting plate by respectively setting a second slide rail pair on the front and rear sides, and then the sliding frame is controlled to move up and down through the Z-axis driving device. The setting has high stability and can effectively avoid the shaking of the sliding frame, thereby improving the position accuracy of the watch case. On the clamping mechanism, the swing control angle of the watch case around the Y-axis can be controlled by the first hollow rotating platform, and the rotation control direction of the watch case around the X-axis can be controlled by the second hollow rotating platform, so that the position of the watch case can be fully controlled, which is convenient for one-time clamping and processing. The elastic inner support component is used to control the elastic inner support chuck to open and tighten the watch case. The present invention uses a spring to control the pull rod to move to the right by pushing the limit nut to the right, and the pull rod opens the elastic inner support chuck to tighten the watch case, which can provide a stable pre-pressure degree to avoid damage to the watch case due to excessive stretching force. The cylinder top touches the pull rod to the left to release the watch case for taking and placing, which is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall structure diagram of the utility model;

[0016] Figure 2 It is a structural diagram of the YZ axis moving mechanism of the utility model;

[0017] Figure 3 This is a structural diagram of the connection between the mounting plate and the sliding frame of the utility model;

[0018] Figure 4 It is a structural diagram of the clamping mechanism of the utility model;

[0019] Figure 5 This is a structural diagram of the connecting frame and the elastic inner support assembly of the utility model;

[0020] Figure 6 This is a structural diagram of the elastic inner support chuck of the utility model;

[0021] Figure 7 It is a structural diagram of the grinding mechanism of the utility model. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] like Figure 1-7As shown, a rough polishing machine for watch case comprises a machine base 1, a clamping mechanism 2 and a grinding mechanism 3; the grinding mechanism 3 is mounted at the rear of the machine base 1; it also comprises a YZ axis moving mechanism 4; the YZ axis moving mechanism 4 comprises a Y axis driving module 41, a mounting plate 42, a sliding frame 43 and a Z axis driving device 44; the Y axis driving module 41 is mounted on the machine base 1; the left part of the mounting plate 42 is mounted on the power output end of the Y axis driving module 41, and the right part is connected to the machine base 1 through a first slide rail pair 401; a hollow hole 421 is provided in the middle of the mounting plate 42; the sliding frame 43 is located at the position of the hollow hole 421; the front and rear sides of the sliding frame 43 are respectively connected through the second slide rail pair 401 02 is connected to the mounting plate 42; the Z-axis driving device 44 is installed between the mounting plate 42 and the sliding frame 43, and is used to control the up and down movement of the sliding frame 43; the YZ-axis moving mechanism 4 is used to control the front and back and up and down movement of the clamping mechanism 2, wherein the Y-axis driving module 41 controls the front and back movement of the mounting plate 42, and drives the sliding frame 43 connected thereto to move back and forth. The sliding frame 43 of this design is located in the hollow hole 421 of the mounting plate 42 and is connected to the mounting plate 42 by respectively arranging a second slide rail pair 402 on the front and rear sides, and then the sliding frame 43 is controlled to move up and down by the Z-axis driving device 44. This setting has high stability, which can effectively avoid the shaking of the sliding frame 43 and improve the position accuracy of the watch case.

[0024] The Z-axis driving device 44 includes a motor seat 441, a motor 442, a gear 443 and a rack 444; the motor seat 441 is fixed to the bottom of the front end of the mounting plate 42; the motor 442 is fixed on the motor seat 441 and the power output end is connected to the gear 443; the rack 444 is vertically installed on the sliding frame 43 and meshes with the gear 443. The motor 442 controls the rotation of the gear 443, and the gear 443 meshes with the rack 444 for transmission, thereby driving the sliding frame 43 connected thereto to move up and down.

[0025] The second slide rail pairs 402 are arranged in four groups and are installed at four corners between the sliding frame 43 and the mounting plate 42; each group of the second slide rail pairs 402 includes two slider supports 4021, two sliders 4022 and a slide rail 4023; the two slider supports 4021 are respectively fixed on the upper and lower sides of the mounting plate 42; the slider 4022 is fixed on the slider support 4021; the slide rail 4023 is fixed on the sliding frame 43 and cooperates with the two sliders 4022. This arrangement further improves the stability of the movement of the sliding frame 43.

[0026] The clamping mechanism 2 includes a bracket 21, a first hollow rotating platform 22, a connecting seat 23, a second hollow rotating platform 24, a connecting frame 25, an elastic inner support chuck 26, an elastic inner support assembly 27 and a cylinder 28; the bracket 21 is fixed above the sliding frame 43; the first hollow rotating platform 22 is installed on the bracket 21 and the power output end is connected to the connecting seat 23, so as to control the rotation of the connecting seat 23 around the Y axis; the second hollow rotating platform 24 is installed on the left side of the connecting seat 23 and the power output end is connected to the elastic inner support chuck 26, so as to control the rotation of the elastic inner support chuck 26 around the X axis; the connecting frame 25 is fixed on the right side of the connecting seat 23; the elastic inner support assembly 27 includes a pull rod 271, a spring 272 and a limit nut 273; the pull rod 271 passes through the connecting frame 25, the connecting seat 23, the second hollow rotating platform 24 and the elastic inner support chuck 26 in sequence from the right side of the connecting frame 25; the pull rod 271 rotates The spring 272 and the limit nut 273 are sequentially mounted on the right end of the pull rod 271; the cylinder 28 is fixed on the connecting frame 25 and is located on the right side of the pull rod 271; the cylinder 28 is used to touch the pull rod 271 to move to the left; the first hollow rotating platform 22 can control the case to swing around the Y-axis to control the control angle, and the second hollow rotating platform 24 can control the case to rotate around the X-axis to control the control direction, so that the position of the case can be fully controlled, which is convenient for one-time clamping to complete the processing, and the elastic inner support component 27 is used to control the elastic inner support chuck 26 to open and tighten the case. The spring 272 is used to control the limit nut 273 to touch the right to control the pull rod 271 to move to the right. The pull rod 271 opens the elastic inner support chuck 26 to tighten the case, which can provide a stable pre-stress to avoid damage to the case due to excessive opening force. The cylinder 28 touches the pull rod 271 to the left to release the case for taking and placing, which is convenient to operate.

[0027] In this design, the connecting frame 25 is installed with a bearing 251 and a bearing limit block 252; the pull rod 271 is connected to the bearing 251; and the two ends of the spring 272 respectively contact the bearing 251 and the limit nut 273.

[0028] The elastic inner support chuck 26 has four inner support blocks 261; each inner support block 261 has a positioning protrusion 2611 protruding to the left on the outer side. When the watch case is installed on the elastic inner support chuck 26, it is pre-supported by the four positioning protrusions 2611. After the elastic inner support chuck 26 is stretched outward, the four positioning protrusions 2611 are driven to stretch outward at the same time to tighten and fix the watch case.

[0029] It also includes a tailstock 5; the tailstock 5 is fixed on the sliding frame 43 and is located on the left side of the clamping mechanism 2. The tailstock 5 is a spare part. When batch processing is required, a special fixture can be used to replace the elastic inner support chuck 26, and the tailstock 5 can be used to fix the workpiece.

[0030] The grinding mechanism 3 includes a base 31, a cylinder 32 and a grinding assembly 33; the base 31 is fixed on the machine base 1; the cylinder 32 is installed on the base 31 and the power output end is connected to the grinding assembly 33, which is used to control the left and right movement of the grinding assembly 33; the grinding assembly 33 is connected to the base 31 through a third slide rail pair, and the left and right movement of the grinding mechanism 3 is controlled by the cylinder 32, so as to ensure that the grinding wheel in the grinding mechanism 3 is worn uniformly, and no pits will appear to affect the grinding quality. At the same time, it can ensure that the entire grinding wheel is used up, reduce consumables and reduce costs.

[0031] The above description does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A watch case rough polishing machine, comprising a machine base, a clamping mechanism and a polishing mechanism; the polishing mechanism is installed at the rear of the machine base; characterized in that: It also includes a YZ-axis moving mechanism; the YZ-axis moving mechanism includes a Y-axis driving module, a mounting plate, a sliding frame and a Z-axis driving device; the Y-axis driving module is installed on the machine base; the left part of the mounting plate is installed on the power output end of the Y-axis driving module, and the right part is connected to the machine base through a first slide rail pair; a hollow hole is provided in the middle of the mounting plate; the sliding frame is located at the position of the hollow hole; the front and rear sides of the sliding frame are respectively connected to the mounting plate through a second slide rail pair; the Z-axis driving device is installed between the mounting plate and the sliding frame, and is used to control the up and down movement of the sliding frame; The clamping mechanism includes a bracket, a first hollow rotating platform, a connecting seat, a second hollow rotating platform, a connecting frame, an elastic inner support chuck, an elastic inner support assembly and a cylinder; the bracket is fixed above the sliding frame; the first hollow rotating platform is installed on the bracket and the power output end is connected to the connecting seat, so as to control the rotation of the connecting seat around the Y axis; the second hollow rotating platform is installed on the left side of the connecting seat and the power output end is connected to the elastic inner support chuck, so as to control the rotation of the elastic inner support chuck around the X axis; the connecting frame is fixed on the right side of the connecting seat; the elastic inner support assembly includes a pull rod, a spring and a limit nut; the pull rod is sequentially passed through the connecting frame, the connecting seat, the second hollow rotating platform and the elastic inner support chuck from the right side of the connecting frame; The pull rod is rotatably connected to the connecting frame; the spring and the limit nut are sequentially installed at the right end of the pull rod; the cylinder is fixed on the connecting frame and is located on the right side of the pull rod; the cylinder is used to push the pull rod to move leftward.

2. A watch case rough polishing machine according to claim 1, characterized in that: The Z-axis driving device includes a motor seat, a motor, a gear and a rack; the motor seat is fixed to the bottom of the front end of the mounting plate; the motor is fixed to the motor seat and the power output end is connected to the gear; the rack is vertically installed on the sliding frame and meshes with the gear.

3. A watch case rough polishing machine according to claim 1, characterized in that: The second slide rail pairs are arranged in four groups and are installed at four corners between the sliding frame and the mounting plate; each group of the second slide rail pairs includes two slider supports, two sliders and a slide rail; the two slider supports are respectively fixed on the upper and lower sides of the mounting plate; the slider is fixed on the slider supports; the slide rail is fixed on the sliding frame and cooperates with the two sliders.

4. A watch case rough polishing machine according to claim 1, characterized in that: The connecting frame is provided with a bearing and a bearing limiting block; the pull rod is connected with the bearing; and the two ends of the spring respectively contact the bearing and the limiting nut.

5. A watch case rough polishing machine according to claim 1, characterized in that: The elastic inner support chuck is provided with four inner support blocks; and the outer side of each inner support block is provided with a positioning protrusion protruding to the left.

6. A watch case rough polishing machine according to claim 1, characterized in that: It also includes a tailstock, which is fixed on the sliding frame and located on the left side of the clamping mechanism.

7. A watch case rough polishing machine according to claim 1, characterized in that: The grinding mechanism includes a base, a cylinder and a grinding assembly; the base is fixed on the machine base; the cylinder is installed on the base and the power output end is connected to the grinding assembly for controlling the left and right movement of the grinding assembly; the grinding assembly is connected to the base through a third slide rail pair.

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