Improved grinding and polishing machine

Abstract

The utility model discloses an improved grinding and polishing machine which comprises a machine frame, a working table, a base, a support, a cross beam, a sliding block, a grinding assembly, a controller and a tool changing assembly, the tool changing assembly comprises at least one fixing base, a sliding strip, a tool rest and a driving air cylinder, a groove is formed in the fixing base, the sliding block is arranged in the groove, and the driving end of the driving air cylinder is fixedly connected with the sliding block. A notch is formed in the side, away from the cross beam, of the fixing base, a cutter is inserted into the notch, a magnet is arranged on the edge of the inner wall of the notch, the grinding assembly comprises a spindle box, the cutter and an electromagnetic locking device, and the electromagnetic locking device is electrically connected with the controller. According to the stone grinding machine, by means of the fixing base, the cutter arranged on the fixing base and other components, when the cutter needs to be replaced when the stone grinding machine needs to grind and polish different stones, the time for replacing the cutter is shortened, the grinding efficiency is improved, the stone grinding machine can adapt to different stones, and the adaptability of the grinding machine is improved.

Description

Technical Field

[0001] The utility model relates to the field of grinding and polishing machines, in particular to an improved grinding and polishing machine. Background Art

[0002] The surface of stone products usually needs to be ground and polished. Grinding and polishing can not only make the stone have a relatively good surface flatness and glossiness, but also make the inherent color, ring pattern and gloss of the stone fully revealed.

[0003] With the development of stone processing technology, stone thickness determination and polishing technology have also made great progress. In particular, stone polishing technology in the engineering field has developed from pure manual operation to continuous polishing. The polishing quality is more reliable, production efficiency is greatly improved, and labor intensity is greatly reduced.

[0004] The existing grinding and polishing machines need to go through multiple processing steps when in use, and each step requires a tool change operation. The existing grinding and polishing machines generally have only one grinding head. When the grinding head needs to be replaced, it is often necessary to manually dismantle the original grinding head and then install a new grinding head. This replacement method is time-consuming, labor-intensive, and inefficient. At the same time, the existing stone grinding and polishing machines have a low degree of automation during use, are more complicated to operate, have poor equipment flexibility, and are more inconvenient to operate. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the present invention is to provide an improved grinding and polishing machine with simple structure, convenient operation and high degree of automation.

[0006] In order to achieve the above object, the utility model adopts the following technical solution:

[0007] An improved grinding and polishing machine comprises a frame and a workbench for placing stones to be ground and polished, the frame comprises a base, brackets arranged on both sides of the base, a beam mounted on the two brackets and moving along the Y-axis direction, a slider sleeved on the beam and moving along the X-axis direction, and a grinding assembly arranged on the slider and movable along the Z-axis direction, the workbench is arranged on the base, and also comprises a controller and a tool changing assembly, the tool changing assembly comprises at least one fixed seat fixed to the bottom plate of the beam, a slide bar slidably arranged on the fixed seat, a tool holder fixedly arranged at the end of the slide bar, and a driving cylinder fixed to the bottom of the beam and driving the slide bar to move back and forth along the Y-axis direction, and a supply cylinder is arranged on the fixed seat The groove in which the slide bar slides, the slide bar is slidably arranged in the groove, the driving end of the driving cylinder is fixedly connected to the slide bar, so that the slide bar is driven by the driving cylinder to be movably arranged in the groove of the fixed seat along the Y-axis direction, the fixed seat is provided with a notch on the side away from the crossbeam, a tool is inserted in the notch, a magnet is provided on the inner wall edge of the notch, the magnet adds suction to the tool, the grinding assembly includes a spindle box slidably arranged on the slider along the Z-axis direction, the tool rotatably arranged on the spindle box, and an electromagnetic locking device arranged on the spindle box and used to lock or unlock the tool, and the electromagnetic locking device is electrically connected to the controller.

[0008] Preferably, the notch is a circular through hole with an opening, and the notch of the circular through hole is transitioned with a rounded corner.

[0009] Preferably, there are a plurality of fixing seats, and the plurality of fixing seats are arranged at equal intervals in sequence along the X-axis direction at the bottom of the beam, one tool holder is arranged corresponding to one fixing seat, and each notch is arranged facing the tool of the grinding assembly.

[0010] Preferably, it also includes a first driving device, a second driving device, a third driving device and a fourth driving device, the first driving device drives the beam to be slidably arranged on the bracket along the Y-axis direction, the second driving device drives the slider to be slidably arranged on the beam along the X-axis direction, the third driving device drives the spindle box to be slidably arranged on the slider along the Z-axis direction, and the fourth driving device drives the tool to be rotatably arranged on the spindle box.

[0011] Preferably, it also includes a cooling mechanism disposed at the bottom of the spindle box for cooling the tool that is undergoing grinding and polishing work.

[0012] Preferably, it also includes a sensing device arranged at the bottom of the spindle box for sensing the contact between the workpiece and the tool.

[0013] By adopting the above-mentioned design scheme, the beneficial effect of the utility model is: through the fixed seat and the tool set on the fixed seat and other components, when the equipment needs to grind different stones and replace the tool, the controller can control the drive motor, and the tool holder moves in the direction of approaching / moving away from the tool of the grinding assembly, and the tool holder that needs to be removed is directly above the tool holder, and at the same time the electromagnetic locking device disconnects the power supply, the tool falls into the gap of the tool holder, and then the electromagnetic locking device moves to the upper end of another tool, reconnects the power supply, and reinstalls the tool through magnetic attraction to complete the tool replacement. The utility model reduces the time of replacing the cutting tool, improves the grinding efficiency, can adapt to different stones, and improves the adaptability of the grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the grinding assembly of the utility model;

[0017] In the figure: base 1, bracket 2, crossbeam 3, slide block 4, grinding assembly 5, spindle box 51, tool 52, tool changing assembly 6, fixed seat 61, groove 611, slide bar 62, tool holder 63, notch 631. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Reference Figures 1 to 3

[0020] An improved grinding and polishing machine includes a frame and a workbench (not shown in the figure) for placing a stone to be ground and polished. The frame includes a base 1, brackets 2 arranged on both sides of the base 1, a beam 3 mounted on the two brackets 2 and moving along the Y-axis direction, a slider 4 mounted on the beam 3 and moving along the X-axis direction, a grinding assembly 5 arranged on the slider 4 and movable along the Z-axis direction, a tool changing assembly 6, a controller (not shown in the figure), a first drive device, a second drive device, a third drive device and a fourth drive device. The workbench is arranged on the base 1. The grinding assembly 5 includes a spindle box 51 slidably arranged on the slider 4 along the Z-axis direction, a tool 52 rotatably arranged on the spindle box 51, and an electromagnetic locking device (not shown in the figure) arranged on the spindle box 51 and used to lock or unlock the tool 52. The electromagnetic locking device is electrically connected to the controller. It is worth noting that the first drive device, the second drive device, the third drive device, and the fourth drive device in this embodiment can all adopt conventional driving motors used on the market, which will not be described in detail here.

[0021] The specific usage and function described above are as follows: the controller controls the rotation of the first driving device to drive the crossbeam 3 to move back and forth along the Z-axis direction and to be arranged on the bracket 2; the controller controls the rotation of the second driving device to drive the slider 4 to slide back and forth along the X-axis direction and to be arranged on the crossbeam 3, so that the tool 52 arranged on the slider 4 can move to the bottom of the workpiece to be processed; the controller controls the rotation of the third driving device to drive the spindle box 51 to slide back and forth along the Y-axis direction and to be arranged on the slider 4, so that the tool 52 can slide up and down, and the height of the tool 52 is controlled for grinding the workpiece; the controller controls the fourth driving device to drive the tool 52 to be rotatably arranged on the spindle box 51, so as to be used for grinding the workpiece. This embodiment realizes precise processing of the workpiece through the first driving device, the second driving device, the third driving device, and the fourth driving device.

[0022] The tool changing assembly 6 comprises at least one fixed seat 61 fixed to the bottom plate of the beam 3, a slide bar 62 slidably arranged on the fixed seat 61, a tool holder 63 fixedly arranged at the end of the slide bar 62, and a driving cylinder (not shown in the figure) fixed to the bottom of the beam 3 and driving the slide bar 62 to move back and forth along the Y-axis direction. The fixed seat 61 is provided with a groove 611 for the slide bar 62 to slide, the slide bar 62 is slidably arranged in the groove 611, the driving end of the driving cylinder is fixedly connected to the slide bar 62, so that the slide bar 62 is movably arranged in the groove 611 of the fixed seat 61 along the Y-axis direction through the driving cylinder, and a notch 631 is opened on the side of the tool holder 63 away from the beam 3, the notch 631 is connected to the tool 52, and the inner wall edge of the notch 631 is provided with a magnet (not shown in the figure), and the magnet adds suction to the tool 52. A plurality of tool holders 63 for placing replaceable tools 52 are arranged on the fixed seat 61.

[0023] Furthermore, the electromagnetic locking device is an electromagnetic induction mechanism, and the tool 52 is a metal part. The controller controls the cylinder to drive the tool changing assembly 7 to slide back and forth along the Y-axis direction at the bottom of the beam 2, so that the tool changing assembly 7 is close to or away from the tool 52 set on the spindle box 51, so as to be used for switching the tool 52.

[0024] Furthermore, the notch 631 is a circular through hole with an opening, and the notch 631 of the circular through hole is transitioned with a rounded corner.

[0025] Furthermore, there are multiple fixing seats 61 , which are equidistantly arranged at the bottom of the beam 3 along the X-axis direction. One tool holder 63 is arranged corresponding to one fixing seat 61 , and each notch 631 is arranged facing the tool 52 of the grinding assembly 5 .

[0026] Furthermore, it also includes a cooling mechanism (not shown in the figure) arranged at the bottom of the spindle box 51 for cooling the tool 52 that is undergoing grinding and polishing work.

[0027] Furthermore, a sensing device is provided at the bottom of the spindle box 51 for sensing the contact between the workpiece and the tool 52 .

[0028] By adopting the above-mentioned design scheme, the beneficial effect of the utility model is: through the fixed seat 61 and the tool 52 set on the fixed seat 61 and other components, when the equipment needs to grind different stones and replace the tool 52, the controller can control the drive motor, and at this time the tool holder 63 moves in the direction of approaching / moving away from the tool 52 of the grinding assembly 5, and the tool holder 63 to be removed is directly above the tool holder 63, and at the same time the electromagnetic locking device disconnects the power supply, the tool 52 falls into the notch 631 of the tool holder 63, and then the electromagnetic locking device moves to the upper end of another tool 52, reconnects the power supply, and reinstalls the tool 52 through magnetic attraction to complete the replacement of the tool 52. The utility model reduces the time of replacing the cutting tool 52, improves the grinding efficiency, can adapt to different stones, and improves the adaptability of the grinder.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved grinding and polishing machine, comprising a frame and a workbench for placing stones to be ground and polished, the frame comprising a base, brackets arranged on both sides of the base, a beam mounted on the two brackets and moving along the Y-axis direction, a slider mounted on the beam and moving along the X-axis direction, and a grinding assembly arranged on the slider and movable along the Z-axis direction, the workbench is arranged on the base, and is characterized in that: The invention also includes a controller and a tool changing assembly, wherein the tool changing assembly includes at least one fixed seat fixed to the bottom plate of the beam, a slide bar slidably arranged on the fixed seat, a tool holder fixedly arranged at the end of the slide bar, and a driving cylinder fixed to the bottom of the beam and driving the slider to move back and forth along the Y-axis direction. The fixed seat is provided with a groove for the slide bar to slide, and the slide bar is slidably arranged in the groove. The driving end of the driving cylinder is fixedly connected to the slide bar so that the slide bar is driven by the driving cylinder to be movably arranged in the groove of the fixed seat along the Y-axis direction. A notch is opened on the side of the tool holder away from the beam, and a tool is inserted in the notch. A magnet is arranged on the inner wall edge of the notch, and the magnet adds suction to the tool. The grinding assembly includes a spindle box slidably arranged on the slider along the Z-axis direction, the tool rotatably arranged on the spindle box, and an electromagnetic locking device arranged on the spindle box and used to lock or unlock the tool, and the electromagnetic locking device is electrically connected to the controller.

2. An improved grinding and polishing machine according to claim 1, characterized in that: The notch is a circular through hole with an opening, and the notch of the circular through hole is transitioned with a rounded corner.

3. The improved grinding and polishing machine according to claim 1, characterized in that: There are multiple fixing seats, and the multiple fixing seats are arranged at equal intervals in sequence along the X-axis direction at the bottom of the beam. One tool holder is arranged corresponding to one fixing seat, and each notch is arranged facing the tool of the grinding assembly.

4. The improved grinding and polishing machine according to claim 1, characterized in that: It also includes a first driving device, a second driving device, a third driving device and a fourth driving device. The first driving device drives the beam to be slidably arranged on the bracket along the Y-axis direction, the second driving device drives the slider to be slidably arranged on the beam along the X-axis direction, the third driving device drives the spindle box to be slidably arranged on the slider along the Z-axis direction, and the fourth driving device drives the tool to be rotatably arranged on the spindle box.

5. The improved grinding and polishing machine according to claim 1, characterized in that: It also includes a cooling mechanism arranged at the bottom of the spindle box for cooling the tool that is undergoing grinding and polishing work.

6. The improved grinding and polishing machine according to claim 1, characterized in that: It also includes a sensing device arranged at the bottom of the spindle box for sensing the contact between the workpiece to be processed and the tool.

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