Grinding head mechanism of polishing machine

Abstract

The utility model provides a polishing machine grinding head mechanism which comprises an installation frame movably connected with a moving mechanism, a servo motor installed on the installation frame, a transmission assembly and a polishing wheel, the installation frame is movably connected with a rotating shaft of the polishing wheel, the servo motor is connected with the transmission assembly, and the transmission assembly is connected with the polishing wheel. The output end of the transmission assembly is fixedly connected with a rotating shaft of the polishing wheel, the servo motor is matched with the transmission assembly, the rotating speed of the polishing wheel is controlled to be maintained within a stable range, and then stable friction force applied to a workpiece by the polishing wheel is controlled. Therefore, the polished workpiece is ensured to have better and unified polishing quality.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing machine manufacturing, in particular to a polishing machine grinding head mechanism. Background Art

[0002] Existing polishing machines are generally assembled from workpiece clamping equipment and grinding and polishing equipment. The grinding and polishing equipment includes a mechanical frame, a power output and a grinding head mechanism with a polishing wheel. The grinding head mechanism is installed on the mechanical frame, and the power output is drivingly connected to the grinding head mechanism. The mechanical frame can be movably installed so that the grinding head mechanism can be driven to move after the work is started, so that the polishing wheel contacts the workpiece and the workpiece is polished. However, the power output generally uses an ordinary motor, and the output power of the ordinary motor cannot be adjusted according to the state between the polishing wheel and the workpiece, so that the pressure applied by the polishing wheel to the workpiece is maintained within a stable range. This is not conducive to controlling and maintaining the quality and accuracy of polishing. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a polishing machine grinding head mechanism that can apply stable pressure.

[0004] The utility model achieves the above purpose by:

[0005] It comprises a mounting frame movably connected to a moving mechanism, a servo motor mounted on the mounting frame and a polishing wheel. The mounting frame is movably connected to a rotating shaft of the polishing wheel, and the servo motor is connected to the rotating shaft of the polishing wheel through a transmission assembly.

[0006] Furthermore, the mounting frame is also equipped with a connecting shaft, the connecting shaft is sleeved with a connecting arm, and the connecting arm is connected to the end of the rotating shaft of the polishing wheel through a bearing.

[0007] Furthermore, it also includes a dust hood, the mounting bracket of the dust hood is connected to the connecting shaft, the cover body of the dust hood covers the polishing wheel, and the mounting bracket is located between the connecting arms.

[0008] Furthermore, the moving mechanism includes a counterweight lifting mechanism, which includes a counterweight machine base, a slide rail arranged on one side of the counterweight machine base and a counterweight transmission assembly, the counterweight transmission assembly includes a slide seat connected to the mounting frame, a counterweight weight, a traction belt and a plurality of traction rollers, the plurality of traction rollers are arranged on the counterweight machine base, the traction belt is pressed on the traction rollers, and the two ends are respectively connected to the counterweight weights and the slide seat located on both sides of the counterweight machine base, the slide seat is movably connected to the slide rail, and the slide seat is connected to the lifting motor on the counterweight machine base through a screw assembly.

[0009] Furthermore, a swing motor is installed on the slide, the output end of the swing motor is connected to the eccentric wheel, the eccentric wheel is connected to the ring sleeve through a bearing, a swing rod is connected to the ring sleeve, the swing rod is movably connected to the mounting frame, and the mounting frame is sleeved on the guide shaft of the slide through a kit to realize the movable connection between the mounting frame and the slide.

[0010] Furthermore, the moving mechanism also includes a horizontal moving mechanism, which includes a base installed on the bottom plate of the base, a guide rail arranged on the top of the base, a connecting screw arranged inside the base, and a driving motor arranged outside the base, the connecting screw being connected to a nut at the bottom of the counterweight base and connected to the driving motor.

[0011] Beneficial effects of the utility model:

[0012] The utility model provides a grinding head mechanism of a polishing machine. Compared with the previous method of using an ordinary motor to drive a polishing wheel to grind and polish a workpiece, a servo motor is used as a power output device, and a transmission component is used to connect the servo motor and the polishing wheel. The servo motor and the transmission component cooperate with each other, and the rotation speed of the polishing wheel is adjusted during the grinding process, so that the polishing wheel applies a stable friction force to the workpiece, thereby ensuring that the polished workpiece has a better and uniform polishing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 This is a schematic diagram of the back structure of a grinding head mechanism of a polishing machine in one embodiment of the utility model;

[0015] Figure 2 This is a front structural schematic diagram of a grinding head mechanism of a polishing machine in one embodiment of the utility model;

[0016] Figure 3 for Figure 1 A is an enlarged schematic diagram;

[0017] Figure 4 It is a partial structural schematic diagram of a grinding head mechanism of a polishing machine in one embodiment of the utility model;

[0018] Figure 5 for Figure 4 It is a schematic diagram of another part of the structure of a grinding head mechanism of a polishing machine in one embodiment of the utility model.

[0019] In the figure, 1 is a mounting frame, 2 is a moving mechanism, 3 is a servo motor, 4 is a transmission assembly, 5 is a polishing wheel, 11 is a connecting shaft, 12 is a connecting arm, 6 is a dust hood, 61 is a mounting bracket, 62 is a cover body, 21 is a counterweight machine base, 22 is a slide rail, a screw assembly 31, a lifting motor 32, an eccentric wheel 33, a sleeve 34, a kit 35, a guide shaft 36, a drive motor 37, 231 is a slide seat, 232 is a swing motor, 233 is a counterweight weight, 234 is a traction belt, 235 is a traction roller, 236 is a rocker arm, 7 is a horizontal displacement mechanism, 71 is a base, 72 is a track, and 73 is a connecting screw. DETAILED DESCRIPTION

[0020] Figure 1-Figure 5 The specific structure of a grinding head mechanism of a polishing machine in an embodiment of the utility model is shown, and the grinding head mechanism includes a mounting frame 1 movably connected to a moving mechanism 2, a servo motor 3 installed on the mounting frame 1, and a polishing wheel 5. The mounting frame 1 is movably connected to the rotating shaft of the polishing wheel 5, and the servo motor 3 is connected to the rotating shaft of the polishing wheel 5 through a transmission assembly 4.

[0021] Compared with ordinary motors, servo motors have the advantage of being able to adjust output according to feedback, and the servo motor is used in combination with a transmission component to control the rotational speed of the polishing wheel so that the rotational speed of the polishing wheel meets the rotational speed conditions required by the polishing process. Based on this, the utility model adopts the servo motor 3 as a power output device, and uses the transmission component 4 to connect the servo motor 3 and the polishing wheel 5. The servo motor 3 and the transmission component 4 cooperate with each other to adjust the rotational speed of the polishing wheel 5 during the polishing process, so that the polishing wheel 5 applies a stable friction force to the workpiece, thereby ensuring that the polished workpiece has a better and uniform polishing quality.

[0022] Furthermore, in this embodiment, if Figure 2 As shown, the mounting frame 1 is also equipped with a connecting shaft 11, and the connecting shaft 11 is equipped with a connecting arm 12. The connecting arm 12 is connected to the end of the rotating shaft of the polishing wheel 5 through a bearing to ensure that the polishing wheel will not shake during the polishing process, thereby ensuring the polishing quality.

[0023] Furthermore, in this embodiment, if Figure 2 As shown, a dust hood 6 is also included, a mounting bracket 61 of the dust hood 6 is sleeve-connected to the connecting shaft 11, a cover body 62 of the dust hood 6 covers the polishing wheel 5, and the mounting bracket 61 is located between the connecting arms 12. Dust generated during the polishing process of the polishing wheel 5 can be sucked away by the dust hood 6 to ensure the cleanliness of the production workshop.

[0024] Furthermore, in this embodiment, if Figure 1-Figure 4As shown, the mobile mechanism 2 includes a counterweight lifting mechanism, which includes a counterweight machine base 21, a slide rail 22 arranged on one side of the counterweight machine base 21, and a counterweight transmission assembly, wherein the counterweight transmission assembly includes a slide 231 connected to the mounting frame 1, a counterweight weight 233, a traction belt 234, and a plurality of traction rollers 235, wherein the plurality of traction rollers 235 are arranged on the counterweight machine base 21, and the traction belt 234 is pressed on the traction roller 235, and the two ends are respectively connected to the counterweight weight 233 and the slide 231 located on both sides of the counterweight machine base, and the slide 231 is movably connected to the slide rail, and the slide 231 is connected to the lifting motor 32 on the counterweight machine base 21 through the screw assembly 31. When the lifting motor 32 is working, the screw will rotate, thereby driving the slide 231 and the mounting frame 1 and the components installed thereon to rise or fall together, so as to meet the needs of grinding workpieces. Since the slide 231 is connected to the counterweight 233 via the traction belt 234 and the traction roller 235, the slide 231 and the mounting frame 1 and other components can be lifted and lowered by a motor with less power, thereby reducing energy consumption.

[0025] Furthermore, a swing motor 232 is installed on the slide 231, and the output end of the swing motor 232 is connected to the eccentric wheel 33, and the eccentric wheel 33 is connected to the ring sleeve 34 through a bearing, and the ring sleeve 34 is connected to a swing rod 236, and the swing rod 236 is movably connected to the mounting frame 1, and the mounting frame 1 is sleeved on the guide shaft 36 of the slide 231 through a set 35 to realize the movably connection between the mounting frame 1 and the slide 231. When the swing motor 232 is working, the eccentric wheel 33 will produce eccentric rotation, and the ring sleeve 34 and the swing rod 236 connected thereto will produce a reciprocating power in front and behind, thereby driving the polishing wheel 5 on the mounting frame to reciprocate axially forward and backward, increasing the angle of the polishing wheel 5 to grind the workpiece, and improving the polishing efficiency. The swing motor 232 can also be used to adjust the relative position of the polishing wheel 5 and the workpiece to facilitate the polishing operation.

[0026] Furthermore, in this embodiment, as shown in the figure, it also includes a horizontal moving mechanism 7, which includes a base 71 installed on the bottom plate of the machine base, a guide rail 72 arranged on the top of the base 71, a connecting screw 73 arranged in the base 71, and a driving motor arranged outside the base 71, the guide rail 72 is connected to the counterweight machine base 21, the connecting screw 73 is connected to the nut at the bottom of the counterweight machine base 21, the connecting screw 73 is connected to the driving motor 37, the counterweight lifting mechanism is connected to the horizontal displacement mechanism 7, and the horizontal displacement mechanism 7 adjusts the horizontal position of the counterweight lifting mechanism to adjust the position of the polishing wheel 5.

[0027] Furthermore, in this embodiment, if Figures 1 to 5As shown, the polishing machine grinding head mechanism actually includes two polishing wheels 5 that cooperate with each other. The two polishing wheels 5 are respectively installed on two mounting frames 1 set up at the upper and lower positions. Each mounting frame 1 is also equipped with a servo motor 3 and a transmission assembly 4 for driving the polishing wheel 5 to rotate. The servo motor 3 is connected to the rotating shaft of the polishing wheel 5 through the transmission assembly 4. Correspondingly, the counterweight transmission assembly is provided with two groups, each group including a slide 231, a lifting motor 32, a counterweight 233, a traction belt 234 and a plurality of traction rollers 235. Two slides 231 are arranged up and down along the direction of the slide rail 22, and each is connected to one of the mounting frames 1. Two groups of the plurality of traction rollers 235 are arranged on the top of the counterweight machine base 21, and the traction belt 234 is connected to the corresponding counterweight 233 and the corresponding slide 231.

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation scheme of the present invention and its description are only used to analyze the present invention and are not intended to limit the present invention.

[0029] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the utility model; it should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model; therefore, all equivalent changes and modifications made to the claims and scope of the utility model should belong to the scope covered by the claims of the utility model.

Claims

1. A polishing machine grinding head mechanism, characterized in that: The invention comprises a mounting frame (1) movably connected to a moving mechanism (2), a servo motor (3) transmission assembly mounted on the mounting frame (1), and a polishing wheel (5), wherein the mounting frame (1) is movably connected to a rotating shaft of the polishing wheel (5), and the servo motor (3) transmission assembly is connected to the rotating shaft of the polishing wheel (5) via a transmission assembly (4).

2. A polishing machine grinding head mechanism according to claim 1, characterized in that: The mounting frame (1) is also provided with a connecting shaft (11), the connecting shaft (11) is sleeved with a connecting arm (12), and the connecting arm (12) is connected to the end of the rotating shaft of the polishing wheel (5) via a bearing.

3. A polishing machine grinding head mechanism according to claim 2, characterized in that: It also comprises a dust hood (6), a mounting bracket (61) of the dust hood (6) being sleeve-connected to the connecting shaft (11), a cover body (62) of the dust hood (6) covering the polishing wheel (5), and the mounting bracket (61) being located between the connecting arms (12).

4. A polishing machine grinding head mechanism according to any one of claims 1 to 3, characterized in that: The moving mechanism (2) comprises a counterweight lifting mechanism, the counterweight lifting mechanism comprising a counterweight machine base (21), a slide rail (22) arranged on one side of the counterweight machine base (21), and a counterweight transmission assembly, the counterweight transmission assembly comprising a slide seat (231) connected to the mounting frame (1), a counterweight weight (233), a traction belt (234), and a plurality of traction rollers (235), the plurality of traction rollers (235) being arranged on the counterweight machine base (21), the traction belt (234) pressing on the traction rollers (235), and the two ends of which are respectively connected to the counterweight weight (233) and the slide seat (231) located on both sides of the counterweight machine base, the slide seat (231) being movably connected to the slide rail, and the slide seat (231) being connected to a lifting motor (32) on the counterweight machine base (21) via a screw rod assembly (31).

5. A polishing machine grinding head mechanism according to claim 4, characterized in that: A swing motor (232) is mounted on the slide (231); the output end of the swing motor (232) is connected to an eccentric wheel (33); the eccentric wheel (33) is connected to a ring sleeve (34) via a bearing; a swing rod (236) is connected to the ring sleeve (34); the swing rod (236) is movably connected to the mounting frame (1); the mounting frame (1) is sleeved on a guide shaft (36) of the slide (231) via a sleeve (35) to achieve a movably connected mounting frame (1) and the slide (231).

6. A polishing machine grinding head mechanism according to claim 4, characterized in that: The moving mechanism (2) further comprises a horizontal moving mechanism (7), wherein the horizontal moving mechanism (7) comprises a base (71) mounted on a base bottom plate, a guide rail (72) arranged on the top of the base (71), a connecting screw (73) arranged inside the base (71), and a driving motor arranged outside the base (71), wherein the connecting screw (73) is connected to a nut at the bottom of the counterweight base (21) and is connected to the driving motor (37).

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