Coaxiality detection device for processing main shaft of valve bevel grinding machine

Abstract

The utility model relates to the technical field of valve bevel grinding machine main shaft detection, in particular to a coaxiality detection device for valve bevel grinding machine main shaft processing, which comprises a main body, the top of the main body is fixedly connected with a laser centering detection assembly and a rotation adjusting assembly, and the top of the rotation adjusting assembly is fixedly connected with a clamping assembly; according to the utility model, the laser transmitter is used for transmitting the laser beam, the laser beam is irradiated to the photoelectric detector of the receiver, the coaxiality of the main shaft of the valve bevel grinding machine is further detected, the laser test can realize extremely high measurement precision, the error can be controlled at a micron level or even a nano level, and the laser test is based on light velocity propagation. The measurement process is almost instantly completed, a large amount of data can be rapidly collected, the high-speed response capability enables the device to be especially suitable for dynamic measurement and real-time monitoring, laser testing does not need to make contact with a measured object, and damage or interference to the measured object is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve bevel grinding machine spindle detection technical field, concretely is a valve bevel grinding machine spindle processing with coaxality detection device. BACKGROUND

[0002] Valve bevel grinding machine spindle is the core component of the grinding machine, its main function is to install the grinding wheel or the grinding tool, and drive its high speed rotation in the grinding process, so as to realize the precision machining of valve bevel.

[0003] Valve bevel grinding machine spindle is the key component of the grinding machine, is used for supporting and driving the grinding wheel or grinding tool to rotate at high speed. Its precision and rigidity directly affect the machining quality and dimensional accuracy of valve bevel, and the design and manufacture of spindle need to meet the requirements of high precision, high rigidity and high speed, to ensure the stability and machining effect of the machining process, the spindle is usually made of high-precision material to ensure its rotation accuracy and rigidity, and the spindle is usually equipped with high-precision bearings, such as angular contact ball bearings or liquid dynamic pressure bearings, to support the high-speed rotation of the spindle.

[0004] At present, when the coaxality of valve bevel grinding machine spindle is detected, the dial gauge method is mostly used, and the measurement accuracy of dial gauge is limited by its own structure and manufacturing accuracy, for example, mechanical loss, zero drift, different contact surfaces between measuring head and measured piece and other factors will introduce system error, in addition, the indication error, return error of dial gauge and the influence of radial force of measuring rod on the indication will also lead to inaccurate measurement results, and dial gauge is sensitive to environmental conditions, temperature, humidity and other external factors may affect the measurement results, therefore, a valve bevel grinding machine spindle processing coaxality detection device is needed to improve the above problems. UTILITY MODEL CONTENTS

[0005] In order to solve the problem that the coaxality of valve bevel grinding machine spindle is detected at present, the dial gauge method is mostly used, and the measurement accuracy of dial gauge is limited by its own structure and manufacturing accuracy, for example, mechanical loss, zero drift, different contact surfaces between measuring head and measured piece and other factors will introduce system error, in addition, the indication error, return error of dial gauge and the influence of radial force of measuring rod on the indication will also lead to inaccurate measurement results, and dial gauge is sensitive to environmental conditions, temperature, humidity and other external factors may affect the measurement results, the purpose of the utility model is to provide a valve bevel grinding machine spindle processing coaxality detection device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] A valve bevel grinder spindle processing coaxial detection device, including main body, the top of main body is fixedly connected with laser centering detection assembly and rotation adjusting assembly, the top of rotation adjusting assembly is fixedly connected with clamping assembly;

[0008] The main body includes a bottom plate;

[0009] The laser centering detection assembly includes a main box, the top of the main box is fixedly connected with a top plate, the top of the top plate is provided with a telescopic cylinder, the output end of the telescopic cylinder is fixedly connected with an L-shaped plate, the side surface of the L-shaped plate is fixedly connected with a vertical plate, the side surface of the vertical plate is fixedly connected with a detector, the side surface of the detector is fixedly connected with a laser emitter, the top of the bottom plate is fixedly connected with a mounting plate, and the side surface of the mounting plate is fixedly connected with a receiver.

[0010] The rotation adjusting assembly includes a base plate, a motor is installed at the bottom of the base plate, the output end of the motor is fixedly connected with a rotating wheel, and the side surface of the rotating wheel is meshed with a transmission wheel.

[0011] As a preferred scheme of the utility model, the side surface of the main box is fixedly connected with a sliding rail, the side surface of the sliding rail is slidingly connected with a sliding block, and the sliding block is fixedly connected with the L-shaped plate.

[0012] As a preferred scheme of the utility model, the sliding rail is provided with two, and the sliding block is provided with two.

[0013] As a preferred scheme of the utility model, the inside of the transmission wheel is fixedly connected with a rotating rod, the top of the base plate is fixedly connected with a bearing seat, and the bearing seat extends to the inside of the rotating rod.

[0014] As a preferred scheme of the utility model, the clamping assembly includes a supporting plate, and the material of the supporting plate is aluminum alloy.

[0015] As a preferred scheme of the utility model, the top of the supporting plate is fixedly connected with a support, and the support is provided with two.

[0016] As a preferred scheme of the utility model, the side surface of the support is provided with a telescopic rod, and the side surface of the telescopic rod is fixedly connected with a semicircular clamping piece.

[0017] As a preferred scheme of the utility model, the telescopic rod and the semicircular clamping piece are provided with two, and a detection shaft body is arranged between the two semicircular clamping pieces.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] 1.The utility model discloses, through the utilization laser emitter emits laser beam, irradiates to the photodetector of receiver, and further detects the coaxial degree of valve bevel grinding machine main shaft, and laser testing can realize very high measurement accuracy, and the error can be controlled micron level even nanometer level, and laser testing is based on the propagation of light speed, and the measurement process is almost completed in an instant, and can quickly collect a large amount of data, and this high-speed response capability makes it particularly suitable for dynamic measurement and real-time monitoring, and laser testing does not need to contact the measured object, avoids the damage or interference to the measured object.

[0020] 2.The utility model discloses, through the utilization of the drive of motor drives the meshing of rotating wheel and transmission wheel, and further makes the rotation of the rotation lever, to the detection shaft body of clamping assembly clamping can be rotated and adjusted, increase the accuracy, also improve the flexibility of equipment, the telescopic cylinder telescopic can be used to the height adjustment of laser emitter of detection instrument side, further improve the accuracy of detection. ACCOUT OF DRAWINGS

[0021] Figure 1 It is the whole structure schematic diagram of the utility model;

[0022] Figure 2 It is the laser centering detection subassembly structure schematic diagram of the utility model;

[0023] Figure 3 It is the rotation adjustment subassembly structure schematic diagram of the utility model;

[0024] Figure 4 It is the clamping assembly structure schematic diagram of the utility model.

[0025] In the drawing: 1, main body;101, bottom plate;2, laser centering detection subassembly;201, mainframe box;202, top plate;203, telescopic cylinder;204, L type board;205, sliding rail;206, sliding block;207, vertical board;208, detection instrument;209, laser emitter;210, mounting plate;211, receiver;3, rotation adjustment subassembly;301, base plate;302, motor;303, rotating wheel;304, transmission wheel;305, rotation lever;306, bearing seat;4, clamping assembly;401, support plate;402, support;403, telescopic link;404, half-arc clamping piece;405, detection shaft body. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described below in a clear and complete manner, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0027] Embodiment: please refer to Figures 1-4 The embodiment shows a coaxiality detection device for valve bevel grinder spindle machining, including a main body 1, the top of the main body 1 is fixedly connected with a laser centering detection assembly 2 and a rotary adjusting assembly 3, the top of the rotary adjusting assembly 3 is fixedly connected with a clamping assembly 4;

[0028] In this embodiment, referring to Figure 1 , Figure 2 and Figure 3 , the main body 1 includes a bottom plate 101, the laser centering detection assembly 2 includes a main box 201, the top of the main box 201 is fixedly connected with a top plate 202, the top of the top plate 202 is installed with a telescopic cylinder 203, the output end of the telescopic cylinder 203 is fixedly connected with an L-shaped plate 204, the side of the L-shaped plate 204 is fixedly connected with a vertical plate 207, the side of the vertical plate 207 is fixedly connected with a detector 208, the side of the detector 208 is fixedly connected with a laser emitter 209, the top of the bottom plate 101 is fixedly connected with a mounting plate 210, the side of the mounting plate 210 is fixedly connected with a receiver 211, the rotary adjusting assembly 3 includes a base plate 301, the bottom of the base plate 301 is installed with a motor 302, the output end of the motor 302 is fixedly connected with a rotating wheel 303, the side of the rotating wheel 303 is meshingly connected with a transmission wheel 304, a laser beam is emitted by the laser emitter 209 and irradiates on the photodetector of the receiver 211, and then the coaxiality of the valve bevel grinder spindle is detected, the laser test can achieve extremely high measurement accuracy, the error can be controlled in microns or even nanometers, the laser test is based on the propagation of light speed, the measurement process is almost instantaneous, a large amount of data can be quickly collected, and this high-speed response capability makes it particularly suitable for dynamic measurement and real-time monitoring, the laser test does not need to contact the measured object, and damage or interference to the measured object is avoided.

[0029] Among them, the side of the main box 201 is fixedly connected with a sliding rail 205, the side of the sliding rail 205 is slidingly connected with a sliding block 206, the sliding block 206 is fixedly connected with the L-shaped plate 204, the sliding rail 205 is provided with two, the sliding block 206 is provided with two, the inside of the transmission wheel 304 is fixedly connected with a rotating rod 305, the top of the base plate 301 is fixedly connected with a bearing seat 306, the bearing seat 306 extends to the inside of the rotating rod 305, the meshing of the rotating wheel 303 and the transmission wheel 304 is driven by the motor 302, and then the rotating rod 305 is rotated, so that the detection shaft body 405 clamped by the clamping assembly 4 can be rotationally adjusted, the flexibility of the equipment is improved while the accuracy is increased, and the height of the laser emitter 209 on the side of the detector 208 can be adjusted by the telescopic cylinder 203, further improving the accuracy of detection.

[0030] In this embodiment, referring to Figure 1 and Figure 4As shown, the clamping assembly 4 includes a support plate 401 made of aluminum alloy, the top of the support plate 401 is fixedly connected with a support 402, the support 402 is provided with two, the side surface of the support 402 is installed with a telescopic rod 403, the side surface of the telescopic rod 403 is fixedly connected with a semicircular clamping piece 404, the telescopic rod 403 and the semicircular clamping piece 404 are provided with two, the middle of the two semicircular clamping pieces 404 is provided with a detection shaft body 405, the telescopic rod 403 is used for controlling the semicircular clamping piece 404 to clamp the detection shaft body 405, so that different models of the detection shaft body 405 can be detected.

[0031] In the use of the coaxiality detection device for spindle machining of a valve bevel grinder in the scheme, a laser emitter 209 is installed on a reference axis, and a receiver 211 is installed on an axis of an object to be measured; a laser beam is emitted from the emitter and irradiated onto a photodetector of the receiver 211; as the shaft rotates, a light spot is formed on a detection surface of the receiver 211, and the position of the light spot changes with the offset of the shaft; the instrument host determines the deviation of the axis by calculating the center position and displacement of the light spot; the radial deviation and angular deviation of the axis are calculated by measuring the displacement components in two orthogonal planes; the instrument displays the measurement results in numerical or graphical form, including the offset value, the angle value and adjustment suggestions of the shaft; the operator can calibrate according to these data; the laser centering method measures the position and angle information of the axis of the object to be measured relative to the reference axis by the laser emitter 209 and the receiver 211, so as to obtain the coaxiality; the method has high precision and can reach the micron level.

[0032] Although the embodiments of the utility model 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 these embodiments without departing from the principles and spirits of the utility model, the range of the utility model is defined by the appended claims and their equivalents.

Claims

1. A coaxiality detection device for valve chamfer grinder spindle machining, comprising a main body (1), characterized in that: The top of the main body (1) is fixedly connected with a laser centering detection assembly (2) and a rotation adjusting assembly (3), and the top of the rotation adjusting assembly (3) is fixedly connected with a clamping assembly (4). The main body (1) comprises a bottom plate (101); The laser centering detection assembly (2) comprises a main cabinet (201), and the top of the main cabinet (201) is fixedly connected with a top plate (202); a telescopic cylinder (203) is installed on the top of the top plate (202); the output end of the telescopic cylinder (203) is fixedly connected with an L-shaped plate (204); the side surface of the L-shaped plate (204) is fixedly connected with a vertical plate (207); the side surface of the vertical plate (207) is fixedly connected with a detector (208); the side surface of the detector (208) is fixedly connected with a laser emitter (209); the top of the bottom plate (101) is fixedly connected with a mounting plate (210); and the side surface of the mounting plate (210) is fixedly connected with a receiver (211). The rotation adjusting assembly (3) comprises a base plate (301), and the bottom of the base plate (301) is installed with a motor (302); the output end of the motor (302) is fixedly connected with a rotating wheel (303); and the side surface of the rotating wheel (303) is meshingly connected with a transmission wheel (304).

2. The coaxiality detection device for spindle machining of a valve ramp grinder according to claim 1, characterized in that: The side surface of the main cabinet (201) is fixedly connected with a slide rail (205), and the side surface of the slide rail (205) is slidingly connected with a sliding block (206); and the sliding block (206) is fixedly connected with the L-shaped plate (204).

3. The coaxiality detection device for spindle machining of a valve ramp grinder according to claim 2, characterized in that: The slide rail (205) is provided with two, and the sliding block (206) is provided with two.

4. The coaxiality detection device for spindle machining of a valve ramp grinder according to claim 1, characterized in that: The inside of the transmission wheel (304) is fixedly connected with a rotating rod (305); the top of the base plate (301) is fixedly connected with a bearing seat (306); and the bearing seat (306) extends into the inside of the rotating rod (305).

5. The coaxiality detection device for spindle machining of a valve ramp grinder according to claim 1, characterized in that: The clamping assembly (4) comprises a supporting plate (401), and the material of the supporting plate (401) is aluminum alloy.

6. The coaxiality detection device for spindle machining of a valve ramp grinder according to claim 5, characterized in that: The top of the supporting plate (401) is fixedly connected with a support (402), and the support (402) is provided with two.

7. The coaxiality detection device for spindle machining of a valve ramp grinder according to claim 6, characterized in that: The side surface of the support (402) is installed with a telescopic rod (403), and the side surface of the telescopic rod (403) is fixedly connected with a semicircular clamping piece (404).

8. The coaxiality detection device for spindle machining of a valve ramp grinder according to claim 7, characterized in that: The telescopic rod (403) and the semicircular clamping piece (404) are provided with two, and a detection shaft body (405) is arranged in the middle of the two semicircular clamping pieces (404).

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