Single-sided grinding machine

Abstract

The utility model discloses a single-face grinding machine which comprises a rack, a grinding disc, a disc repairing mechanism and a stop hook assembly. The rack serves as a carrier; the millstone is mounted on the rack and driven by a driving device to rotate, and the grinding base surface of the millstone faces upwards; the grinding disc repairing mechanism comprises a transmission assembly, a grinding disc repairing tool apron and a sliding rod, the grinding disc repairing tool apron is installed on the sliding rod, the transmission assembly drives the sliding rod to move horizontally, and the grinding disc repairing tool apron acts on the surface of the grinding disc; the stop hook mechanism comprises a driven ring and a stop hook assembly, and the driven ring is placed on the grinding base plane; the stop hook assembly is provided with a stop hook, the stop hook is an arc-shaped face with the same radian as the circumferential side face of the driven ring, and the stop hook is provided with a guide wheel which can move along the circumferential side face of the driven ring. The angle, the height and the distance extending out of the millstone can be adjusted through the stop hook mechanism, so that the requirements for machining precision, plane stability and the like of products are met; and the surface of the grinding disc can be trimmed through the disc trimming mechanism, and the product polishing effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, and more specifically to a single-sided grinding machine. Background Technology

[0002] Single-sided grinding machines are high-precision planar processing equipment with high-strength mechanical structure and stable precision. During the operation of the tooling fixture, due to the influence of factors such as the friction of the grinding disc, the running resistance, the performance of the grinding fluid, the size of the abrasive grains, and the contact angle, the speed of the tooling fixture of each workpiece may be different, or even a single tooling fixture may stop operating. This can lead to inconsistent grinding quality of parts in the same grinding batch, and the grinding disc needs to be repaired after long-term use. Utility Model Content

[0003] In view of this, the present invention provides a single-sided grinding machine.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a single-sided grinding machine, comprising:

[0005] The frame serves as a carrier;

[0006] The grinding disc is mounted on the frame and driven to rotate by a drive device, with the grinding surface of the grinding disc facing upwards;

[0007] The dressing mechanism includes: a transmission assembly, a dressing tool holder, and a slide bar. The dressing tool holder is mounted on the slide bar, the transmission assembly drives the slide bar to move horizontally, and the dressing tool holder acts on the surface of the grinding disc.

[0008] The hook mechanism includes: a driven coil and a hook assembly, wherein the driven coil is placed on the grinding base surface;

[0009] The stop hook assembly has a stop hook, an arc surface with the same curvature as the peripheral side surface of the driven ring, and a guide wheel that can move along the peripheral side surface of the driven ring.

[0010] In a preferred embodiment of this utility model, the repair mechanism is mounted on a bracket by a locking screw, and the bracket is provided with an adjusting screw for adjusting the height of the sliding rod.

[0011] As a preferred embodiment of this utility model, the repair mechanism is further provided with an oil groove, which is located below the slide bar.

[0012] As a preferred embodiment of this utility model, the hook assembly further includes: a base and an adjusting block; the adjusting block is provided with a pin.

[0013] The hook is provided with a slot, and the pin is engaged in the slot;

[0014] The adjusting block is installed on the base. The angle and height of the adjusting block on the base are used to adjust the angle and height of the stop hook extending out of the grinding disc.

[0015] As a preferred embodiment of this utility model, the repair mechanism further includes an adjusting screw for adjusting the levelness of the slide bar.

[0016] In a preferred embodiment of this utility model, the guide wheels are installed at both ends of the arc-shaped surface corresponding to the hook.

[0017] As a preferred embodiment of this utility model, it further includes: a counterweight mechanism.

[0018] The counterweight mechanism is equipped with a cylinder and a counterweight plate; the cylinder drives the counterweight plate to move down and fall into the driven coil.

[0019] In a preferred embodiment of this utility model, the transmission assembly includes: a motor and a lead screw; the slide bar is mounted on the lead screw; the motor drives the lead screw to rotate so as to drive the slide bar to move linearly.

[0020] As a preferred embodiment of this utility model, it also includes: an electrical box.

[0021] As can be seen from the above technical solution, compared with the prior art, the present invention has the following beneficial technical effects:

[0022] 1. This utility model is equipped with a grinding disc repair mechanism, which can repair the surface of the grinding disc to ensure the effect of grinding products.

[0023] 2. The middle stop hook mechanism of this utility model can adjust the angle, height and the distance of the extension from the grinding disc to meet the requirements of product processing accuracy and plane stability;

[0024] The remaining beneficial technical effects of this utility model are embodied in the specific embodiments. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0028] Figure 3This is a schematic diagram of the stop hook mechanism in this utility model;

[0029] Figure 4 This is a cross-sectional schematic diagram of the repair mechanism in this utility model;

[0030] Figure 5 This is a schematic diagram of the grinding disc repair mechanism in this utility model when repairing the grinding disc.

[0031] Explanation of reference numerals in the attached figures

[0032] Frame 100; Grinding disc 200; Grinding base 201; Drive device 210; Hook mechanism 300; Driven ring 310; Hook assembly 320; Hook 321; Arc surface 3211; Strip groove 3212; Guide wheel 322; Base 323; Adjusting block 324; Pin 3241; Repair disc mechanism 400; Marble straight edge 401; Dial indicator 402; Transmission assembly 420; Motor 421; Lead screw 422; Repair disc cutter holder 430; Slide rod 440; Oil tank 450; Adjusting screw 470; Bracket 480; Locking screw 490; Counterweight mechanism 500; Cylinder 510; Counterweight plate 520; Electrical box 600. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0034] For single-sided grinding machines, please refer to [link / reference]. Figures 1-4 As shown, it includes: frame 100, grinding disc 200, hook mechanism 300, repair disc mechanism 400 and counterweight mechanism 500.

[0035] Specifically, the frame 100 serves as the carrier, and its overall structure is cabinet-like, which can be made of cast metal; the workbench is made of 304 stainless steel, which is leak-proof and corrosion-resistant.

[0036] The grinding disc 200 is mounted on the frame 100 and driven to rotate by the drive device 210, with the grinding base surface 201 of the grinding disc 200 facing upwards;

[0037] like Figure 1 and Figure 2 As shown, the large panel of the frame 100 has a position for mounting the grinding disc 200. The drive device 210 can be a motor, and the output shaft of the motor can be directly connected to the grinding disc 200 to drive the grinding disc 200 to rotate.

[0038] Alternatively, the drive unit 210 can be a combination of a motor and a belt drive assembly to drive the grinding disc 200 to rotate.

[0039] Alternatively, the drive unit 210 can be a structure of a motor and a gearbox, driving the grinding disc 200 to rotate; the drive unit 210 only needs to be able to drive the grinding disc 200 to rotate.

[0040] The dressing mechanism 400 includes: a transmission assembly 420, a dressing tool holder 430, and a slide bar 440. The dressing tool holder 430 is mounted on the slide bar 440. The transmission assembly 420 drives the slide bar 440 to move horizontally, and the dressing tool holder 430 acts on the surface of the grinding disc 200.

[0041] The repair mechanism 400 is also equipped with an oil tank 450, which is located below the slide bar 440. The oil tank is mainly used to collect the waste oil from the repair mechanism 400.

[0042] The repair mechanism 400 is mounted on a bracket 480 by a locking screw 490, and the bracket 480 is provided with an adjusting screw 470 for adjusting the height of the sliding rod 440.

[0043] like Figure 5 As shown, the lead screw 422 and the slide bar 440 are installed in a chassis. When the slide bar 440 moves to the left, it can extend out of the chassis and be exposed. The entire chassis is installed on the bracket 480 by locking screw 490. By rotating the adjusting screw 470, the height of the entire repair mechanism can be adjusted, and finally the height of the slide bar 440 can be adjusted.

[0044] A dressing blade (not shown in the figure) is installed on the dressing blade holder 430, and the dressing blade is used to dress the grinding disc 200.

[0045] The transmission assembly 420 includes a motor 421 and a lead screw 422, with a slide bar 440 mounted on the lead screw 422; the motor 421 drives the lead screw 422 to rotate, thereby causing the slide bar 440 to move linearly.

[0046] Therefore, the motor 421 can be a forward and reverse motor. When the motor 421 rotates forward, it drives the lead screw 422 to move forward and pushes the slide bar 440 to move closer to the center of the grinding disc 200. When the motor 421 rotates in reverse, it drives the lead screw 422 to move in the opposite direction and pushes the slide bar 440 away from the center of the grinding disc 200.

[0047] Optionally, the transmission assembly 420 may also include a motor, a transmission wheel set, and a lead screw 422, wherein the motor drives the lead screw to rotate via the transmission wheel set;

[0048] Optionally, the transmission assembly 420 may also include a motor, a transmission sprocket set, and a lead screw 422, wherein the motor drives the lead screw to rotate via the transmission sprocket set;

[0049] After a period of use, the grinding disc 200 needs to be dressed. The motor 421 drives the slide bar 440 to move slowly in a radial linear motion via the lead screw 422. During the movement, the dressing blade acts on the surface of the grinding disc 200. After dressing, the slide bar 440 moves in the opposite direction to reset. The dressing mechanism 400 ensures that the flatness of the grinding base surface 201 of the grinding disc 200 reaches a maximum of ±0.002mm.

[0050] like Figure 5 As shown, when the grinding disc 200 is being dressed, the slide bar 440 is driven to move and extend through the transmission assembly 420, which in turn drives the dressing disc tool holder 430 to move.

[0051] The dressing method for millstone 200 is as follows:

[0052] Place the marble straightedge 401 on the grinding disc 200, and the dial indicator 402 on the slide bar 440. The needle of the dial indicator 402 contacts the marble straightedge 401 (point A). Record the reading of the dial indicator 402. The grinding disc machine runs idle (the grinding disc 200 does not rotate). The slide bar 440 continues to extend, and the dial indicator 402 moves from point A to point B. Record the reading of the dial indicator 402 at point B. Compare the height difference between the two points. Then, turn the adjusting screw 470 so that point B is about 0.4 mm lower than point A. The grinding disc machine is reset. Remove the marble straightedge 401 and the dial indicator 402.

[0053] Next, the dressing mechanism 400 operates, pushing the dressing tool holder 430 to advance, and the dressing mechanism 400;

[0054] Then, as described above, reposition the marble straightedge 401 and dial indicator 402. The dressing mechanism 400 continues to run without load (the grinding disc does not rotate). Detect the change in the dial indicator from point A to point B. Then, turn the adjusting screw 470 until the dial indicator reading no longer changes, and then tighten the locking handle.

[0055] The horizontal adjustment operation of the slide bar of the repair machine is complete.

[0056] The hook mechanism 300 includes a driven ring 310 and a hook assembly 320. The driven ring 310 is placed on the grinding base 201. The hook assembly 320 has a hook 321, which has an arcuate surface 3211 that matches the curvature of the peripheral side surface of the driven ring 310. The hook 321 is provided with a guide wheel 322, which can move along the peripheral side surface of the driven ring 310.

[0057] More specifically, the guide wheels 322 are installed at both ends of the arc-shaped surface 3211 corresponding to the hook 321.

[0058] The hook assembly 320 also includes: a base 323 and an adjusting block 324;

[0059] Adjusting block 324 is provided with pin 3241;

[0060] The hook 321 is provided with a strip groove 3212, and the pin 3241 is engaged in the strip groove 3212;

[0061] The stop hook 321 is installed on the adjusting block 324. Specifically, the stop hook 321 is partially superimposed on the adjusting block 324, and the adjusting block 324 is partially superimposed on the base 323. The angle and height of the stop hook 321 extending out of the grinding disc 200 are adjusted by adjusting the installation angle and height of the adjusting block 324 on the base 323.

[0062] like Figure 1 As shown, the driven ring 310 is placed behind the grinding disc 200. When the grinding disc 200 rotates, the speed of the driven ring 310 is driven by the mutual friction of the rotating grinding disc 200, and by the positioning and guidance of the guide wheel 322, so that the driven ring 310 rotates.

[0063] The counterweight mechanism 500 is equipped with a cylinder 510 and a counterweight plate 520; the cylinder 510 drives the counterweight plate 520 to move down and fall into the driven coil 310.

[0064] In this embodiment, there are three driven coils 310, three sets of hook assemblies 320, and three sets of counterweight mechanisms 500.

[0065] Optionally, the outer diameter of the counterweight disc 520 is adapted to the inner diameter of the driven coil 310.

[0066] Before grinding, the workpiece is first fixed in the fixture, and then placed on the grinding base 201 of the grinding disc 200, and then the driven ring 310 is placed in it; then the cylinder 510 drives the counterweight disc 520 to move down and fall into the driven ring 310; finally, when the drive device 210 is started, the grinding disc 200 rotates, and when the grinding disc 200 rotates, it cooperates with the stop hook assembly 320 to make the driven ring 310 rotate.

[0067] Specifically, the grinding disc 200 rotates counterclockwise, and the grinding friction causes the driven ring 310 and the product to rotate. The workpiece and the grinding disc 200 rotate and rub against each other. With the appropriate grinding process, the grinding and polishing of the product can be achieved. In addition, the best flatness of this single-sided grinding machine can reach 0.001mm, and the best roughness can reach 0.02um.

[0068] After processing, the workpiece should meet the following precision requirements: flatness 0.3µm, parallelism 1µm, thickness difference 1µm, and surface roughness 0.01µm.

[0069] In addition, the single-sided grinding machine is also equipped with an automatic liquid addition system: which allows the abrasive to be sprayed evenly on the grinding disc, saving consumable costs and meeting environmental protection requirements;

[0070] The frame 100 is also equipped with an electrical box 600, which is mainly used for electrical connection. All electrical components or components / parts that need to be powered on on the single-sided grinding machine are electrically connected to the electrical box 600 to ensure that the whole machine is powered on and running.

[0071] In addition, this application also features a user-friendly control interface and a system fault self-diagnosis alarm function, making it easy to find the cause and quickly resolve the abnormality; it adopts a PLC program control system, which has good stability, and the frequency conversion control realizes soft start and soft stop, with small impact force, reducing workpiece damage; and it can remotely assist in data acquisition according to customer needs.

[0072] This single-sided grinding machine is mainly used in the pneumatic, hydraulic, and water pressure sealing industries, the semiconductor industry, and the optical industry. It can be used for grinding and polishing precision parts of both metal and non-metal materials that are hard, brittle, and fragile (including ceramics, sapphire, and semiconductor materials).

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A single-sided grinding machine, characterized in that: include: The frame (100) serves as a carrier; The grinding disc (200) is mounted on the frame (100) and driven to rotate by a drive device, with the grinding base surface (201) of the grinding disc (200) facing upward; The dressing mechanism (400) includes: a transmission assembly (420), a dressing tool holder (430), and a slide bar (440). The dressing tool holder (430) is mounted on the slide bar (440). The transmission assembly (420) drives the slide bar (440) to move horizontally, and the dressing tool holder (430) acts on the surface of the grinding disc (200). The hook mechanism (300) includes: a driven ring (310) and a hook assembly (320), wherein the driven ring (310) is placed on the grinding base surface (201); The stop hook assembly (320) has a stop hook (321), the stop hook (321) has an arc surface (3211) with the same curvature as the peripheral side surface of the driven ring (310), the stop hook (321) is provided with a guide wheel (322), the guide wheel (322) can move along the peripheral side surface of the driven ring (310).

2. The single-sided grinding machine according to claim 1, characterized in that: The repair mechanism (400) is mounted on a bracket (480) by a locking screw (490), and the bracket (480) is provided with an adjusting screw (470) for adjusting the height of the sliding rod (440).

3. The single-sided grinding machine according to claim 1, characterized in that: The repair mechanism (400) is also provided with an oil trough (450), which is located below the slide bar (440).

4. The single-sided grinding machine according to claim 1, characterized in that: The hook assembly (320) further includes: a base (323) and an adjusting block (324); The adjusting block (324) is provided with a pin (3241); The stop hook (321) is provided with a strip groove (3212), and the pin (3241) is engaged in the strip groove (3221); The adjusting block (324) is installed on the base (323). The angle and height of the stop hook (321) extending out of the grinding disc (200) are adjusted by adjusting the installation angle and height of the adjusting block (324) on the base (323).

5. The single-sided grinding machine according to claim 1, characterized in that: The guide wheels (322) are installed at both ends of the arc-shaped surface (3211) corresponding to the hook (321).

6. The single-sided grinding machine according to claim 5, characterized in that: Also includes: Counterweight mechanism (500); the counterweight mechanism (500) is provided with a cylinder (510) and a counterweight plate (520); the cylinder (510) drives the counterweight plate (520) to move down and fall into the driven coil (310).

7. The single-sided grinding machine according to claim 1, characterized in that: The transmission assembly (420) includes a motor (421) and a lead screw (422); the slide bar (440) is mounted on the lead screw (422); the motor (421) drives the lead screw (422) to rotate so as to drive the slide bar (440) to move linearly.

8. The single-sided grinding machine according to claim 1, characterized in that: Also includes: Electrical box (600).

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