Grinding wheel dressing mechanism of vertical grinding machine

Abstract

The utility model provides a grinding wheel dressing mechanism of a vertical grinder, and belongs to the technical field of grinders. The problem that in the prior art, a grinding wheel of a grinding machine needs to be shut down to be disassembled and assembled when being trimmed is solved. According to the grinding wheel dressing mechanism of the vertical grinding machine, the vertical grinding machine comprises a working table and a workpiece positioning rotary table which is arranged on the working table and can horizontally rotate, and the working table is further provided with a grinding wheel which is located above the workpiece positioning rotary table and can move. The grinding wheel dressing mechanism comprises a dressing seat located on the adjacent side of the workpiece positioning rotary table, a dressing disc and a dressing pen located above the dressing disc are fixed to the dressing seat, the dressing seat can be vertically and rotatably arranged on the workbench, and when the dressing seat rotates downwards to be in a horizontal state, the dressing pen is located above the dressing disc. And the height of the finishing seat is lower than that of the workpiece positioning rotary table. The grinding device has the advantage of improving the grinding efficiency of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of grinding machine technology and relates to a grinding wheel dressing mechanism for a vertical grinding machine. Background Technology

[0002] A grinding machine is a device that uses a high-speed rotating grinding head to grind workpieces, achieving precision grinding. For example, Chinese patent literature discloses a multi-functional universal vertical grinding machine (authorization announcement number: CN203380753U), comprising: a base, on which a housing and a hydrostatic vertical rotary table are mounted, a vertical grinding machine pitch circle fixture is mounted on the hydrostatic vertical rotary table, an electric motor A is installed inside the housing, the electric motor A is connected to a gearbox, and the gearbox is connected to a universal grinding head.

[0003] The multi-functional universal vertical grinder has the following shortcomings during use: Due to the different materials and processing steps of workpieces of different specifications, the universal grinding head is prone to wear during use, which will affect the accuracy of the products processed by the grinder. Therefore, after the universal grinding head is worn, the machine must be stopped and removed, and then the universal grinding head must be repaired by the worker to ensure that the accuracy of the universal grinding head meets the usage requirements. The frequent disassembly and assembly of the universal grinding head is not only cumbersome to operate, but also greatly reduces the grinding efficiency of the equipment. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a grinding wheel dressing mechanism for a vertical grinding machine. The technical problem this invention aims to solve is resolving the issue of requiring machine shutdown and disassembly during grinding wheel dressing in existing grinding machines.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A grinding wheel dressing mechanism for a vertical grinding machine, the vertical grinding machine including a worktable and a workpiece positioning turntable mounted on the worktable and rotatable horizontally, the worktable also having a grinding wheel positioned above the workpiece positioning turntable and movable, characterized in that the grinding wheel dressing mechanism includes a dressing seat located adjacent to the workpiece positioning turntable, the dressing seat having a dressing disc and a dressing pen fixed on it respectively, the dressing seat being rotatably mounted on the worktable, and when the dressing seat is rotated downwards to a flat position, the height of the dressing seat is lower than the height of the workpiece positioning turntable.

[0007] By arranging this grinding wheel dressing mechanism on the adjacent side of the workpiece positioning turntable on the worktable, online dressing of the grinding wheel can be achieved without disassembling it. The dressing pen and dressing disc above the workpiece positioning turntable work together in this grinding wheel dressing mechanism. The dressing pen can be used for fine adjustment and small-area dressing, while the dressing disc can be used for large-area rapid dressing, improving processing flexibility and enabling complex dressing tasks. At the same time, when not performing dressing operations, the dressing seat can be rotated downwards to a flat position, so that the height of this grinding wheel dressing mechanism is lower than the height of the workpiece positioning turntable. This avoids and minimizes the height space occupied by the dressing mechanism, thereby facilitating the movement and replacement of the grinding wheel and greatly improving the grinding efficiency of the equipment.

[0008] In the above-described grinding wheel dressing mechanism of a vertical grinding machine, the dressing disc is angled to the horizontal plane and inclined towards the workpiece positioning turntable. There are at least three dressing pens, one of which is horizontally positioned, while the other two are located on its upper and lower sides and are vertically positioned. This allows the three-point distribution of dressing pens to finely adjust the bottom, top, and circumference of the grinding wheel, while the dressing disc, slightly inclined towards the workpiece positioning turntable, can quickly dress the bottom and circumference of the grinding wheel. The dressing pens and dressing disc are roughly L-shaped, enabling complex dressing tasks and processing flexibility to meet the dressing needs of grinding wheels of different shapes and sizes.

[0009] In the grinding wheel dressing mechanism of the aforementioned vertical grinding machine, the end of the dressing pen is frustum-shaped and has a conical dressing tip on its end face. This allows the dressing pen to better achieve fine adjustment and small-range dressing of the grinding wheel.

[0010] In the grinding wheel dressing mechanism of the above-mentioned vertical grinding machine, a dressing pen holder is detachably fixed to the dressing seat by bolts, and the dressing pen is fixed on the dressing pen holder. This ensures the stability of the dressing pen installation and allows for better assembly and disassembly of the dressing pen. By replacing the entire dressing pen, the dressing needs of grinding wheels of different shapes and sizes can be better met.

[0011] In the above-mentioned grinding wheel dressing mechanism of a vertical grinding machine, a mounting shaft is connected to the dressing seat. The dressing disc is frustum-shaped and detachably mounted on the mounting shaft, with the top surface area of ​​the dressing disc being larger than its bottom surface area. This ensures the stability of the dressing disc installation and allows for better assembly and disassembly of the dressing disc. By replacing the dressing disc, the dressing needs of grinding wheels of different shapes and sizes can be better met. Furthermore, the larger top surface area of ​​the dressing disc allows its shape to better match the shape of the grinding wheel, thus improving the dressing operation.

[0012] In the above-mentioned grinding wheel dressing mechanism of a vertical grinding machine, the dressing seat includes a block-shaped base and a U-shaped extension frame vertically connected to the base. The dressing disc is disposed on the base, and the dressing pen is disposed on the extension frame. A cylinder is mounted on the worktable. A rotating shaft is connected to the base. The output shaft of the cylinder is hinged to the rotating shaft via a rocker block, and the output shaft of the cylinder is arranged horizontally and perpendicularly to the rotating shaft. The reciprocating movement of the cylinder output shaft drives the dressing seat to rotate downwards to a flat position or upwards to return to its original position. At the same time, the U-shaped extension frame can make way for the dressing disc disposed on the base, making the vertically arranged dressing pen and dressing disc structure more compact and the layout more reasonable. Alternatively, a rotary motor can be used to drive the vertical rotation of the dressing seat.

[0013] In the grinding wheel dressing mechanism of the aforementioned vertical grinding machine, the dressing seat is respectively equipped with multiple first coolant spray pipes and multiple second coolant spray pipes. The outlets of the first coolant spray pipes are oriented towards the dressing pen, and the outlets of the second coolant spray pipes are oriented towards the dressing disc. The first and second coolant spray pipes can spray coolant respectively. The coolant can prevent high temperatures from being generated during the dressing process, reduce friction during the dressing process, and wash away the debris generated during the dressing process.

[0014] In the grinding wheel dressing mechanism of the aforementioned vertical grinder, both the dressing disc and the dressing pen are made of diamond. Diamond-made dressing discs and pens have extremely high wear resistance, high dressing efficiency, and a long service life.

[0015] Compared with existing technologies, the advantages of the grinding wheel dressing mechanism of this vertical grinder are as follows: This grinding wheel dressing mechanism can achieve online dressing of the grinding wheel without disassembling it. The dressing pen and dressing disc of the dressing mechanism work together. The dressing pen can be used for fine adjustment and small-area dressing, while the dressing disc can be used for large-area rapid dressing, improving the flexibility of processing and realizing complex dressing tasks. Furthermore, when not performing dressing operations, the dressing seat can be rotated downwards to a flat position, so that the height of this grinding wheel dressing mechanism is lower than the height of the workpiece positioning turntable. This can avoid collisions and minimize the height space occupied by the dressing mechanism, thereby facilitating the movement and replacement of the grinding wheel and greatly improving the grinding efficiency of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a vertical grinding machine equipped with this grinding wheel dressing mechanism.

[0017] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle.

[0018] Figure 3 This is a partial structural diagram of a vertical grinding machine with this grinding wheel dressing mechanism, viewed from the front.

[0019] Figure 4 This is a three-dimensional structural diagram of the grinding wheel dressing mechanism when it is rotated to a horizontal position.

[0020] Figure 5 yes Figure 4 A magnified view of a section at point B.

[0021] Figure 6 This is a three-dimensional structural diagram of the dressing pen of this grinding wheel dressing mechanism.

[0022] Figure 7 This is a schematic diagram of the connection between the dressing seat and the cylinder of the grinding wheel dressing mechanism.

[0023] In the diagram, 1 is the worktable; 2 is the workpiece positioning turntable; 3 is the grinding wheel; 4 is the dressing seat; 4a is the base; 4b is the extension frame; 5 is the dressing disc; 6 is the dressing pen; 6a is the dressing tip; 7 is the mounting shaft; 8 is the first coolant spray nozzle; 9 is the second coolant spray nozzle; 10 is the dressing pen holder; 11 is the cylinder; 12 is the rotating shaft; and 13 is the rocker arm block. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] A grinding wheel dressing mechanism for a vertical grinding machine, referring to Figure 1-7 The vertical grinding machine includes a worktable 1 and a workpiece positioning turntable 2 that is mounted on the worktable 1 and can rotate horizontally. The worktable 1 is also equipped with a grinding wheel 3 that is located above the workpiece positioning turntable 2 and is movable. The grinding wheel dressing mechanism includes a dressing seat 4 located adjacent to the workpiece positioning turntable 2. A dressing disc 5 and a dressing pen 6 located above the dressing disc 5 are fixed on the dressing seat 4. In this embodiment, it is preferred that the dressing disc 5 and the dressing pen 6 are both made of diamond. The dressing disc 5 and the dressing pen 6 are both located above the workpiece positioning turntable 2. The dressing seat 4 is vertically rotatable on the worktable 1. When the dressing seat 4 is rotated downwards to a flat position, the height of the dressing seat 4, the dressing disc 5, and the dressing pen 6 is all lower than the height of the workpiece positioning turntable 2.

[0026] Reference Figure 1 and Figure 2Specifically, the trimming base 4 includes a block-shaped base 4a and a U-shaped extension frame 4b vertically connected to the base 4a. The trimming disc 5 is disposed on the base 4a, and the trimming pen 6 is disposed on the extension frame 4b. Figure 7 A cylinder 11 is installed on the workbench 1, and a rotating shaft 12 is connected to the base 4a. The output shaft of the cylinder 11 is hinged to the rotating shaft 12 through a rocker block 13, and the output shaft of the cylinder 11 is arranged horizontally and vertically to the rotating shaft 12.

[0027] The workpiece positioning turntable 2 preferably adopts a torque direct drive high-rigidity magnetic suction worktable design. By combining direct drive technology with a high-rigidity structure, it achieves higher dynamic response capability and control precision, thereby ensuring high-precision positioning and rotational stability of the workpiece. At the same time, the magnetic suction design effectively ensures the stable clamping of the workpiece, further enhancing the convenience and safety of operation.

[0028] Reference Figure 2 and Figure 3 Specifically, the sanding disc 5 is inclined toward the workpiece positioning turntable 2 at an angle to the horizontal plane, and there are at least three sanding pens 6, one of which is horizontally positioned, and the other two sanding pens 6 are located on the upper and lower sides of the sanding pen 6 respectively and are both vertically positioned.

[0029] Reference Figure 2 , Figure 3 and Figure 6 More specifically, the end of the sanding pen 6 is frustum-shaped and has a conical trimming tip 6a on its end face; the trimming base 4 is detachably fixed with a trimming pen base 10 by bolts, and the sanding pen 6 is fixed on the trimming pen base 10; the trimming base 4 is connected with a mounting shaft 7, the sanding disc 5 is frustum-shaped and detachably fitted and fixed on the mounting shaft 7, and the area of ​​the top surface of the sanding disc 5 is larger than the area of ​​its bottom surface.

[0030] The dressing pen 6 and dressing disc 5 of this grinding wheel dressing mechanism work together to achieve complex dressing tasks and processing flexibility, meeting the dressing needs of grinding wheels of different shapes and sizes. Specifically, during dressing operations, the dressing mechanism is in a vertical dressing state. The dressing pen 6 and dressing disc 5 are roughly L-shaped. The dressing pen 6 is used for fine adjustment and small-area dressing. At the same time, one dressing pen 6 is set horizontally, and the other two dressing pens 6 are located on the upper and lower sides of the dressing pen 6 and are both set vertically. This allows the three-point distribution of the dressing pen 6 to make fine adjustments to the bottom surface, top surface and circumference of the grinding wheel 3 respectively. The dressing disc 5 is suitable for large-area rapid dressing. The dressing disc 5, which is slightly tilted towards the workpiece positioning turntable 2, can quickly dress the bottom surface and circumference of the grinding wheel 3. Furthermore, when not performing dressing operations, the dressing seat 4 can rotate downwards to a flat, yielding position, so that the height of this grinding wheel dressing mechanism is lower than the height of the workpiece positioning turntable 2. This minimizes the height space occupied by the dressing mechanism, thereby facilitating the movement and replacement of the grinding wheel 3 and greatly improving the grinding efficiency of the equipment.

[0031] Reference Figure 2 , Figure 3 and Figure 5 More specifically, the trimming seat 4 is provided with a plurality of first coolant spray pipes 8 and a plurality of second coolant spray pipes 9. The outlet of the first coolant spray pipe 8 is directed toward the trimming pen 6, and the outlet of the second coolant spray pipe 9 is directed toward the trimming disc 5.

[0032] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A grinding wheel dressing mechanism of a vertical grinding machine, the vertical grinding machine comprising a worktable (1) and a workpiece positioning turntable (2) arranged on the worktable (1) and horizontally rotatable, and a grinding wheel (3) arranged above the workpiece positioning turntable (2) and movable in position, characterized in that, The grinding wheel dressing mechanism includes a dressing seat (4) adjacent to the workpiece positioning turntable (2). A dressing disc (5) and a dressing pen (6) located above the dressing disc (5) are respectively fixed on the dressing seat (4). The dressing seat (4) is vertically rotatably arranged on the workbench (1), and when the dressing seat (4) rotates downward to a flat state, the height of the dressing seat (4) is lower than the height of the workpiece positioning turntable (2).

2. The grinding wheel dressing mechanism of a vertical grinding machine according to claim 1, wherein The dressing disc (5) has an angle with the horizontal plane and is inclined towards the workpiece positioning turntable (2). There are at least three dressing pens (6), one of the dressing pens (6) is horizontally arranged, and the other two dressing pens (6) are respectively located on the upper and lower sides of this dressing pen (6) and are both vertically arranged.

3. A grinding wheel dressing mechanism of a vertical grinding machine according to claim 2, wherein The end of the dressing pen (6) is in the shape of a frustum of a cone and has a dressing tip (6a) in the shape of a cone on its end face.

4. The grinding wheel dressing mechanism of a vertical grinding machine according to claim 2, wherein A dressing pen seat (10) is detachably fixed on the dressing seat (4) by bolts, and the dressing pen (6) is fixed on the dressing pen seat (10).

5. The grinding wheel dressing mechanism of a vertical grinding machine according to claim 2, wherein An installation shaft (7) is connected to the dressing seat (4). The dressing disc (5) is in the shape of a frustum of a cone and is detachably sleeved and fixed on the installation shaft (7), and the area of the top surface of the dressing disc (5) is larger than the area of its bottom surface.

6. The grinding wheel dressing mechanism of a vertical grinding machine according to claim 1 or 2 or 3 or 4 or 5, characterized in that, The dressing seat (4) includes a block-shaped base (4a) and an extension frame (4b) in the shape of "冂" vertically connected to the base (4a). The dressing disc (5) is arranged on the base (4a), and the dressing pen (6) is arranged on the extension frame (4b). A cylinder (11) is installed on the workbench (1). The base (4a) is connected with a rotating shaft (12). The output shaft of the cylinder (11) is hinged to the rotating shaft (12) through a rocker block (13), and the output shaft of the cylinder (11) is horizontally perpendicular to the rotating shaft (12).

7. The grinding wheel dressing mechanism of a vertical grinding machine according to claim 1 or 2 or 3 or 4 or 5, characterized in that, A plurality of first coolant spray pipes (8) and a plurality of second coolant spray pipes (9) are respectively arranged on the dressing seat (4). The liquid outlet of the first coolant spray pipe (8) is arranged towards the dressing pen (6), and the liquid outlet of the second coolant spray pipe (9) is arranged towards the dressing disc (5).

8. The grinding wheel dressing mechanism of a vertical grinding machine according to claim 1 or 2 or 3 or 4 or 5, characterized in that, Both the dressing disc (5) and the dressing pen (6) are made of diamond.

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