High-precision vertical circular truncated cone surface grinding machine

Abstract

The utility model relates to the technical field of vertical circular truncated cone surface grinding machines, in particular to a high-precision vertical circular truncated cone surface grinding machine which comprises a diamond dresser and a roughness detection probe which are installed on the two sides of a protective shell respectively. And a power mechanism for driving the diamond dresser and the roughness detection probe to be close to or away from the edge end of the grinding wheel at the same time is arranged on the protective shell, and a precision detection mechanism for monitoring the grinding precision of a workpiece in real time is arranged on the grinding machine body. The bidirectional motor drives the lead screw to rotate, so that the diamond dresser at the bottoms of the two threaded connecting rods is driven to make contact with the grinding face of the grinding wheel, the rotating grinding face of the grinding wheel is dressed through the diamond dresser, and the surface smoothness of the dressed grinding wheel is detected in cooperation with the roughness detection probe. And a supporting point is provided for the diamond dresser through the T-shaped stable sliding block, and the diamond dresser is prevented from shaking in the dressing process.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical round table surface grinder technical field especially relates to a kind of high-precision vertical round table surface grinder. BACKGROUND

[0002] In modern manufacturing industry, such as aerospace, precision instruments and meters, high-end numerical control machine tool and other fields, the demand for precision parts is increasing. These parts often have high requirements on flatness, parallelism, surface roughness and other precision indicators.

[0003] And the traditional vertical round table surface grinder has certain limitations in precision control. For example, during the polishing process, the abrasive particles on the surface of the grinding wheel rub against the material being polished. The abrasive particles will gradually wear out, break or fall off. As the time of use increases, the cutting edge of the abrasive particles will become dull, causing the surface of the grinding wheel to become excessively rough. Traditional grinding machines can only rely on workers to visually observe the appearance of the grinding wheel and assess the smoothness of the grinding wheel based on experience. There is a lack of corresponding grinding wheel smoothness detection mechanism, which leads to more roughness with more polishing and makes it difficult to meet the polishing needs of high-precision workpieces. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides a high-precision vertical round table surface grinder, which solves the problem of traditional grinding machines relying on workers to visually observe the smoothness of the grinding wheel, leading to more roughness with more polishing and making it difficult to meet the polishing needs of high-precision workpieces. The utility model achieves the purpose of accurately trimming the grinding wheel and ensuring polishing accuracy.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a high-precision vertical round table surface grinder, including a stand column installed on a grinding machine body, a power box installed on the stand column, a rotating shaft installed on the output end of the power box, a grinding wheel rotatingly connected to the rotating shaft for polishing a workpiece, a protective shell installed on the power box outside the grinding wheel, a diamond trimmer and a roughness detection probe installed on both sides of the protective shell, a power mechanism provided on the protective shell to drive the diamond trimmer and the roughness detection probe to approach or move away from the edge of the grinding wheel simultaneously, a lifting mechanism provided on the stand column to drive the grinding wheel to move up and down to adjust the polishing of the workpiece, and a precision detection mechanism provided on the grinding machine body to monitor the polishing accuracy of the workpiece in real time.

[0006] Further improvement lies in that the power mechanism includes a bidirectional motor installed on the top of the protective shell and two sets of bearing seats, the two output ends of the bidirectional motor are connected to a lead screw rotatingly connected to the bearing seat, two threaded connecting rods are symmetrically connected to the lead screw and slidingly connected to the inner wall of a guide sliding groove opened on both sides of the top of the protective shell, and the ends of the two threaded connecting rods are respectively connected to the diamond trimmer and the roughness detection probe.

[0007] Further improvement lies in that the outer end of the lead screw is provided with a baffle plate, and the diamond dresser and the roughness detection probe are on the same horizontal line with the center line of the grinding wheel, and the distance between the roughness detection probe and the edge of the grinding wheel is greater than the distance between the diamond dresser and the edge of the grinding wheel.

[0008] Further improvement lies in that the left and right sides of the front and back sides of the protective shell are symmetrically provided with sliding grooves, and the front and back sides of the diamond dresser and the roughness detection probe are provided with T-shaped stable sliding blocks which are slidably connected to the inner walls of the sliding grooves.

[0009] Further improvement lies in that the lifting mechanism comprises a reciprocating lead screw which is rotatably connected to a U-shaped limiting sliding groove formed in the stand, and a U-shaped connecting sliding block which is slidably connected to the inner wall of the limiting sliding groove and is threadedly connected to the reciprocating lead screw, the front end of the U-shaped connecting sliding block is connected to the power box, and the back surface of the power box is symmetrically provided with T-shaped guide sliding blocks which are slidably connected to T-shaped sliding grooves formed in the grinding machine body, and a lifting motor is installed on the top of the stand to drive the reciprocating lead screw to rotate.

[0010] Further improvement lies in that the precision detection mechanism comprises a mounting plate which is installed on the grinding machine body, and an electric telescopic rod which is installed on the top of the side surface of the mounting plate, and a laser micrometer which is installed on the free end of the electric telescopic rod and is perpendicular to the strong magnetic table surface of the grinding machine body.

[0011] By the above technical scheme, the high-precision vertical circular table surface grinding machine provided by the utility model has at least the following beneficial effects:

[0012] 1、The bidirectional motor drives the lead screw to rotate, so as to drive the diamond dressers at the bottom of the two threaded connecting rods to contact the grinding surface of the grinding wheel, the diamond dressers are used to dress the grinding surface of the grinding wheel, the roughness detection probe is used to detect the surface smoothness of the dressed grinding wheel, so that the surface smoothness of the grinding wheel can meet the dressing requirements, and the dressing precision is improved.

[0013] 2、The T-shaped stable sliding blocks provide support points for the diamond dressers, so that the diamond dressers are prevented from shaking during the dressing process, and the dressing effect on the grinding surface of the grinding wheel is affected.

[0014] 3、The lifting motor drives the reciprocating lead screw to rotate, so as to drive the U-shaped connecting sliding block on the reciprocating lead screw to slide up and down along the inner wall of the limiting sliding groove, so as to drive the grinding wheel to move up and down to adjust the grinding height, the lead screw transmission can realize accurate displacement control, and has good self-locking function, so that the grinding wheel is not displaced due to the vibration during grinding, and the grinding precision is improved.

[0015] 4. The utility model discloses a strong magnet mesa is placed on the grinding machine body, and the laser micrometer is moved to the workpiece polishing surface on the strong magnet mesa through the electric telescopic rod, then the smoothness of the workpiece polishing surface is detected in real time through the laser micrometer, when the smoothness does not meet the standard, the power mechanism is sent to the electric signal to the grinding wheel and is modified, and then the polishing precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation to the present application.

[0017] In the drawings:

[0018] Figure 1 It is the whole structure schematic diagram of the utility model;

[0019] Figure 2 It is the split overhead structure schematic diagram of the utility model lifting mechanism;

[0020] Figure 3 It is the rear view schematic diagram of the utility model power box and its upper structure;

[0021] Figure 4 It is the internal structure schematic diagram of the utility model power box;

[0022] Figure 5 It is the independent structure schematic diagram of the utility model precision detection mechanism.

[0023] In the drawings: 1, grinding machine body;2, stand;

[0024] 3, power box;4, rotating shaft;5, grinding wheel;6, protective shell;

[0025] 7, power mechanism;71, bidirectional motor;72, bearing seat;73, screw;74, threaded connecting rod;75, diamond dresser;76, roughness detection probe;77, T-shaped stable sliding block;

[0026] 8, lifting mechanism;81, reciprocating screw;82, U-shaped connecting sliding block;83, T-shaped guide sliding block;84, lifting motor;

[0027] 9, precision detection mechanism;91, mounting plate;92, electric telescopic rod;93, laser micrometer. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] Embodiment one

[0030] In view of the problem that the traditional grinding machine relies on the visual observation of the worker to observe the wheel finish, which leads to rougher grinding and is difficult to meet the high-precision workpiece grinding requirement, the embodiment provides a high-precision vertical round table surface grinding machine, please refer to Figures 1-5 , which can accurately trim the grinding wheel and ensure the grinding accuracy. The high-precision vertical round table surface grinding machine comprises a column 2 mounted on a grinding machine body 1, a power box 3 mounted on the column 2, and a rotating shaft 4 mounted at the output end of the power box 3, wherein the rotating shaft 4 is rotatably connected with a grinding wheel 5 for grinding workpieces, and a protective shell 6 is mounted on the power box 3 outside the grinding wheel 5, wherein a diamond dresser 75 and a roughness detection probe 76 are mounted on the two sides of the protective shell 6, respectively, and a power mechanism 7 is arranged on the protective shell 6 to drive the diamond dresser 75 and the roughness detection probe 76 to approach or move away from the edge of the grinding wheel 5, and a lifting mechanism 8 is arranged on the column 2 to drive the grinding wheel 5 to move up and down to adjust the grinding of the workpiece, and an accuracy detection mechanism 9 is arranged on the grinding machine body 1 to monitor the grinding accuracy of the workpiece in real time, wherein the grinding wheel 5 is driven by the lifting mechanism 8 to move up and down to grind workpieces of different heights, and the accuracy detection mechanism 9 is used to detect the grinding accuracy of the workpiece on the grinding machine body 1 in real time, and when the roughness of the workpiece is too high, the diamond dresser 75 is driven by the power mechanism 7 to trim the grinding surface of the grinding wheel 5, and the roughness detection probe 76 is used to detect the trimming accuracy of the grinding surface of the grinding wheel 5, so as to ensure the grinding accuracy.

[0031] Since the traditional grinding machine relies on the visual observation of the worker to observe the wheel finish, which leads to rougher grinding and is difficult to meet the high-precision workpiece grinding requirement, therefore the device is provided with a power mechanism 7, the power mechanism 7 comprises a bidirectional motor 71 mounted on the top of the protective shell 6, and two groups of bearing seats 72, the two side output ends of the bidirectional motor 71 are connected with a lead screw 73 rotatably connected in the bearing seat 72, and the lead screw 73 is symmetrically screw-connected with two screw connecting rods 74 slidingly connected with the inner wall of the guide sliding groove opened on the top of the protective shell 6, and the two screw connecting rods 74 are respectively installed with the diamond dresser 75 and the roughness detection probe 76 at the ends.

[0032] The outer end of the lead screw 73 is provided with a baffle plate, and the diamond dresser 75 and the roughness detection probe 76 are at the same horizontal line with the center line of the grinding wheel 5, the distance between the roughness detection probe 76 and the edge of the grinding wheel 5 is greater than the distance between the diamond dresser 75 and the edge of the grinding wheel 5, when the surface of the grinding wheel 5 is rough after a long time of grinding and cannot meet the grinding precision requirement, the bidirectional motor 71 is started to drive the lead screw 73 to rotate stably in the bearing seat 72, thereby driving the diamond dresser 75 at the bottom of the two threaded connecting rods 74 to contact the grinding surface of the grinding wheel 5, the rotating grinding wheel 5 contacts the diamond dresser 75, the diamond dresser 75 is used to dress the grinding surface of the grinding wheel 5, and the roughness detection probe 76 is used to detect the surface finish of the dressed grinding wheel 5, so that the surface finish of the grinding wheel 5 can meet the grinding requirement and the grinding precision is improved.

[0033] In order to avoid the vibration of the diamond dresser 75 from affecting the dressing of the grinding wheel 5 when the diamond dresser 75 dresses the grinding surface of the grinding wheel 5, the left and right sides of the front and rear sides of the protective shell 6 are symmetrically provided with sliding grooves, and the front and rear sides of the diamond dresser 75 and the roughness detection probe 76 are symmetrically provided with T-shaped stable sliding blocks 77 which are slidably connected to the inner walls of the sliding grooves, the T-shaped stable sliding blocks 77 are slid in the inner walls of the sliding grooves and provide support points for the diamond dresser 75, so that the diamond dresser 75 is prevented from shaking in the dressing process and affecting the dressing effect of the grinding surface of the grinding wheel 5.

[0034] Since the height of the grinding wheel 5 needs to be adjusted for different heights of workpieces, the device is further provided with a lifting mechanism 8, the lifting mechanism 8 comprises a reciprocating lead screw 81 which is rotatably connected to a U-shaped limiting sliding groove formed in the upright column 2, and a U-shaped connecting sliding block 82 which is slidably connected to the inner wall of the limiting sliding groove and is threadedly connected to the reciprocating lead screw 81, the front end of the U-shaped connecting sliding block 82 is installed on the power box 3, and the back surface of the power box 3 is symmetrically provided with T-shaped guide sliding blocks 83 which are slidably connected to T-shaped sliding grooves formed in the grinding machine body 1, and a lifting motor 84 is installed on the top of the upright column 2 to drive the reciprocating lead screw 81 to rotate, the lifting motor 84 is started to drive the reciprocating lead screw 81 to rotate, thereby driving the U-shaped connecting sliding block 82 on the reciprocating lead screw 81 to slide up and down along the inner wall of the limiting sliding groove, so as to drive the grinding wheel 5 to move up and down to adjust the grinding height, the use of the lead screw transmission can realize accurate displacement control and has good self-locking function, so that the grinding wheel 5 will not be displaced due to the vibration of grinding, thereby improving the grinding precision, and the T-shaped guide sliding blocks 83 further improve the grinding stability of the grinding wheel 5 by sliding up and down in the T-shaped sliding grooves.

[0035] Embodiment two

[0036] Since the grinding wheel grinding surface will gradually rough in the grinding process, it is necessary to detect the finish of the workpiece in real time, when the workpiece is roughened by the grinding surface, the grinding wheel 5 is trimmed in time, therefore, on the basis of embodiment one, as shown in Figures 1-5 The precision detection mechanism 9 includes a mounting plate 91 mounted on the grinding machine body 1, and an electric telescopic rod 92 is mounted on the top of the side surface of the mounting plate 91, and the free end of the electric telescopic rod 92 is provided with a laser micrometer 93 perpendicular to the strong magnetic table surface of the grinding machine body 1, and the electric telescopic rod 92 is started to push the laser micrometer 93 to move above the workpiece grinding surface placed on the strong magnetic table surface of the grinding machine body 1, and then the finish of the workpiece grinding surface is detected in real time through the laser micrometer 93, when the finish does not meet the standard, an electric signal is sent to the power mechanism 7 to trim the grinding wheel 5, thereby improving the grinding precision.

[0037] It should be noted that in this paper, the term "including", "containing" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-precision vertical rotary table surface grinder, comprising a column (2) mounted on the grinder body (1), characterized in that: A power box (3) is installed on the column (2), and a rotating shaft (4) is installed at the output end of the power box (3). A grinding wheel (5) for grinding the workpiece is rotatably connected to the rotating shaft (4). A protective shell (6) located outside the grinding wheel (5) is installed on the power box (3). A diamond dresser (75) and a roughness detection probe (76) are respectively installed on both sides of the protective shell (6). A power mechanism (7) is provided on the protective shell (6) to drive the diamond dresser (75) and the roughness detection probe (76) to move close to or away from the edge of the grinding wheel (5) at the same time. A lifting mechanism (8) is provided on the column (2) to drive the grinding wheel (5) to move up and down to adjust the grinding of the workpiece. A precision detection mechanism (9) is provided on the grinding machine body (1) to monitor the grinding precision of the workpiece in real time.

2. The high-precision vertical rotary table surface grinder according to claim 1, characterized in that: The power mechanism (7) includes a bidirectional motor (71) installed on the top of the protective shell (6) and two sets of bearing seats (72). Both output ends of the bidirectional motor (71) are connected to lead screws (73) rotatably connected in the bearing seats (72). The lead screws (73) are symmetrically threaded with two threaded connecting rods (74) slidably connected to the inner walls of the guide grooves opened on both sides of the top of the protective shell (6). The ends of the two threaded connecting rods (74) are respectively installed with a diamond dressing tool (75) and a roughness detection probe (76).

3. A high-precision vertical rotary table surface grinder according to claim 2, characterized in that: A baffle is installed at the outer end of the lead screw (73), and the diamond dresser (75) and the roughness detection probe (76) are on the same horizontal line as the center line of the grinding wheel (5). The distance between the roughness detection probe (76) and the edge of the grinding wheel (5) is greater than the distance between the diamond dresser (75) and the edge of the grinding wheel (5).

4. A high-precision vertical rotary table surface grinder according to claim 2, characterized in that: The protective shell (6) has symmetrical grooves installed on the left and right sides of the front and rear sides, and the diamond dressing tool (75) and the roughness detection probe (76) are equipped with T-shaped stabilizing sliders (77) that slide left and right on the inner wall of the grooves.

5. A high-precision vertical rotary table surface grinder according to claim 1, characterized in that: The lifting mechanism (8) includes a reciprocating screw (81) rotatably connected to a U-shaped limiting groove on the column (2), and a U-shaped connecting slider (82) threadedly connected to the reciprocating screw (81) and slidably connected to the inner wall of the limiting groove. The front end of the U-shaped connecting slider (82) is installed with the power box (3), and T-shaped guide sliders (83) slidably connected to the T-shaped groove on the grinding machine body (1) are symmetrically installed on the left and right sides of the back of the power box (3). A lifting motor (84) that drives the reciprocating screw (81) to rotate is installed on the top of the column (2).

6. A high-precision vertical rotary table surface grinder according to claim 1, characterized in that: The precision detection mechanism (9) includes a mounting plate (91) installed on the grinding machine body (1), and an electric telescopic rod (92) is installed on the top side of the mounting plate (91), and a laser micrometer (93) perpendicular to the strong magnetic table on the grinding machine body (1) is installed on the free end of the electric telescopic rod (92).

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