CN214843077U

CN214843077U - A kind of wire gear machining accuracy testing table

Info

Publication number: CN214843077U
Application number: CN202023161545.0U
Authority: CN
Inventors: 陈扬枝; 刘雾; 何超
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-11-23
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses a line gear machining accuracy detection table. The detection table includes a working platform, a detection sensor, an XY axis displacement platform, a Z axis lifting platform, a gear clamping device, a fine-tuning device, a control system and a data acquisition system; the working platform is provided with an XY axis displacement platform, a gear clamping device Device setting and fine-tuning device; the average guide rails of X-axis and Y-axis adopt cross-roller guide rails, the screw nut is located in the middle of the cross-roller guide rail, and the X-axis or Y-axis are respectively driven by the screw nut to move. The first grating ruler and the second grating ruler form closed-loop control with the first servo motor and the second servo motor respectively to achieve precise positioning; the detection sensor is arranged on the Z-axis lifting platform; the Z-axis lifting platform is arranged on the XY on the axis stage. The line gear machining accuracy detection table is provided with a high-precision grating ruler, which forms a closed loop with the servo motor control system, which improves the detection accuracy of the gear.

Description

Line gear machining precision detection table

Technical Field

The utility model relates to a gear machining precision detects and equips, especially relates to a line gear machining precision detects platform.

Background

The gear is one of key parts in the industry, the development of the industry is always accompanied, the invention of the gear brings great changes to our life, the gear is widely applied, higher requirements on machining precision are provided, the gear machining precision detection technology can be used for evaluating the gear precision, and corresponding detection equipment comprises a CNC gear measurement center, a gear double-face meshing comprehensive inspection instrument, a gear radial run-out detector, a gear tooth profile and tooth direction detector, a common normal micrometer, a chordal tooth height vernier caliper, a tooth thickness micrometer and the like.

The parallel axis gear is a novel gear based on a space conjugate curve meshing theory, has the characteristics of less tooth number, high transmission efficiency, large transmission ratio and the like, has the minimum tooth number of 1, and can be applied to food, instruments, packaging machinery, toys, miniature robots and other low-power transmission devices. At present, with the development of recent years, the related theory and the processing method of the line gear are increasingly perfected, and the requirements are put forward on the line gear detection technology.

The existing gear detection equipment is mainly developed aiming at an involute gear and is not suitable for a novel gear-a linear gear. Therefore, a line gear detection device which is simple and convenient to operate, reasonable in cost and capable of meeting the use requirements needs to be designed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that current gear check out test set is not applicable to the detection line gear, the utility model provides a line gear machining precision examines test table, and this line gear machining precision examines test table and detects the relative position between sensor and the measured gear through servo motor control to realize the continuous detection to line gear through detecting sensor data collection. The detection table is designed based on the relevant theory of the line gear, the detection requirement of the line gear can be met, and the detection table is simple and convenient to operate, low in cost and high in detection efficiency.

The purpose of the utility model is realized through one of following technical scheme at least.

A line gear machining precision detection table comprises a working platform, a detection sensor, an XY axis displacement table, a Z axis lifting table, a gear clamping device, a fine adjustment device, a control system and a data acquisition system; an XY axis displacement table, a gear clamping device setting and fine adjustment device are arranged on the working platform; the X-axis and Y-axis moving table is provided with a first servo motor and a second servo motor which are respectively used for driving the linear motion of the X-axis and the Y-axis, the servo motor converts the rotation into the linear motion through a screw nut, the guide rails of the X-axis and the Y-axis adopt crossed roller guide rails, the screw nut is positioned in the middle of the crossed roller guide rails and respectively drives the X-axis or the Y-axis to move through the screw nut, the crossed roller guide rails can improve the motion precision of the guide rails, and the XY-axis moving table is provided with a first grating ruler and a second grating ruler which respectively form closed-loop control with the first servo motor and the second servo motor to realize accurate positioning; the detection sensor is arranged on the Z-axis lifting table; the Z-axis lifting platform is arranged on the XY-axis displacement platform.

Furthermore, the detection sensor is fixedly connected with the adapter plate through screw fixation, a plurality of hole sites are arranged on the adapter plate, the position of the detection sensor is adjusted according to requirements, the adapter plate is fixed on the Z-axis lifting table through screws, and the Z-axis lifting table comprises a table body, a micrometer knob, a micrometer scale and a fixed knob; the bench is provided with micrometer knob, micrometer scale and fixed knob on one's body, wherein rotate micrometer knob and be used for adjusting the height of Z axle mobile station, and the high accessible micrometer scale of Z axle directly reads, and the fixed knob of screwing is used for fixed Z axle height, avoids the maloperation and changes the height that has adjusted in advance.

Further, the gear clamping device comprises a bottom moving plate, a support body, a connecting base plate, a clamping main body and a driving system; the bottom moving plate is provided with a support body, the support body is connected with a connecting base plate, and the clamping main body is fixedly connected with the connecting base plate through a screw;

the clamping main body comprises an upward pushing device, a clamping handle, an upward pushing roller, a first roller, a second roller, a gear clamping rod, an adjusting knob and a clamping support seat; the jacking device, the clamping handle, the first roller, the second roller and the adjusting knob are all arranged on the clamping support seat; the jacking device comprises a jacking main body, a jacking screw, a jacking roller adjusting screw and an adjusting and fixing screw; the upper jacking main body is fixed on the clamping support seat through a screw; the upward jacking device is connected with the clamping handle, the adjusting knob is positioned below the clamping handle, the tightening upward jacking screw is used for fixing the clamping handle, the loosening adjusting knob is used for adjusting the height of the clamping handle, the rotating adjusting fixing screw is used for adjusting the opening range of the clamping handle, and the upward jacking roller adjusting screw is used for adjusting the tightness degree of the upward jacking roller; the gear to be tested is fixed on a gear clamping rod, and the gear clamping rod is clamped on the gear clamping device through an upper jacking roller, a first roller and a second roller; the bottom moving plate is fixedly connected with the working platform through screws, the position of the bottom moving plate can be adjusted in the X-axis direction by loosening the screws, and the support body is fixedly connected with the bottom moving plate through screws;

the driving system comprises a motor bracket, an A-axis servo motor and a coupler; a axle servo motor passes through screw and motor support fixed connection, the motor support is fixed in on connecting the backing plate, A axle servo motor passes through the fix with screw on the motor support, A axle servo motor passes through the shaft coupling and transmits the second roller with the moment of torsion, first roller, the gear clamping stick is cliied jointly to second roller and last top roller, the running error between the three roller can offset each other to a certain extent, improve the centre gripping precision, can make things convenient for quick assembly disassembly gear clamping stick simultaneously, the second roller rotates, drive first roller through frictional force, it rotates to go up top roller and gear clamping stick, thereby it is surveyed gear revolve to drive.

Further, the fine adjustment device comprises a fine adjustment micrometer, a micrometer fixing support, a movable guide rail and an adjusting screw; the fine adjustment micrometer is fixedly connected with the micrometer fixing support through a screw; the micrometer fixing support is connected with the movable guide rail and slides on the movable guide rail; and loosening the adjusting screw to move the position of the fine adjustment micrometer, and tightening the adjusting screw to fix the position of the fine adjustment micrometer.

Furthermore, the control system and the data acquisition system comprise a grating ruler, a servo drive motor, an industrial control card and an upper computer; the upper computer sends an instruction to the industrial control card, the industrial control card controls the movement of the servo motor, the grating ruler collects position information and feeds the position information back to the industrial control card to form closed-loop control, and the upper computer collects the position information through the servo encoder and the grating ruler and stores the position information in the memory.

Furthermore, the acquisition system comprises a sensor, a data acquisition card and an acquisition program, wherein the sensor comprises a built-in motor encoder, a detection sensor, a first grating ruler and a second grating ruler, the acquisition program is integrated in a control program, the data acquisition card is integrated on a control card, and the acquisition system is used for acquiring the position information of the XY axes and recording the data acquired by the detection sensor.

Further, the work platform is a marble platform.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

1. the line gear machining precision detection table adopts friction transmission torque, and can protect the detection device and the servo drive motor while ensuring reliability.

2. A servo motor and a grating ruler encoder are adopted to form closed-loop control, and detection precision is improved.

3. The fine adjustment device is adopted, so that the mutual position relation between the gear and the detection sensor can be well ensured.

4. Should examine test table and adopt gear clamping device, can adjust according to the size of being surveyed the gear, the suitability is high, makes things convenient for the installation and the dismantlement of being surveyed the gear, improves detection efficiency.

Drawings

Fig. 1 is a schematic structural view of a gear machining precision detection table of the present line.

Fig. 2 is a schematic structural view of a Z-axis lifting table and a detection sensor of the gear machining precision detection table.

Fig. 3 is a structural schematic diagram of a gear clamping device of the gear machining precision detection table of the present line.

Fig. 4 is a front view of the clamping main body of the gear machining precision detection table of the present line.

Fig. 5 is a schematic structural view of a fine adjustment device of the gear machining precision detection table.

The various components in the figure are as follows:

the device comprises a detection sensor 1, an XY axis displacement table 2, a first servo motor 3, a Z axis lifting table 4, a first grating ruler 5, a working platform 6, a fine adjustment device 7, a gear clamping device 8, a second servo motor 9, a second grating ruler 10, an adapter plate 11, a micrometer scale 12, a micrometer knob 13, a fixed knob 14, a table body 15, an upper jacking device 16, an upper jacking roller 17, a first roller 18, a gear clamping rod 19, a measured gear 20, a second roller 21, an adjusting knob 22, a bottom moving plate 23, a supporting body 24, a connecting pad plate 25, a clamping handle 26, a motor support 27, a coupler 28, an A axis servo motor 29, an upper jacking screw 30, an upper jacking main body 31, an upper jacking roller adjusting screw 32, an adjusting fixed screw 33, a micrometer fixing support 34, a moving guide rail 35, an adjusting screw 36, a fine adjustment micrometer 37 and a clamping support 38.

Detailed Description

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following description will be made with reference to the drawings in the embodiments of the present invention, and clearly and completely describe the technical solutions in the embodiments of the present invention, it is obvious that the described embodiments are only a part of the embodiments of the present invention, and all other embodiments obtained by a person having ordinary skill in the art without creative work should belong to the scope of the present invention.

As shown in fig. 1 to 5, a line gear machining accuracy detection table is characterized in that: the device comprises a working platform 6, a detection sensor 1, an XY axis displacement table 2, a Z axis lifting table 4, a gear clamping device 8, a fine adjustment device 7, a control system and a data acquisition system; the working platform 6 is provided with an XY axis displacement table 2, a gear clamping device 8 and a fine adjustment device 7; the XY-axis moving table 2 is provided with a first servo motor 3 and a second servo motor 9 which are respectively used for driving linear motion of XY axes, the servo motors convert rotation into linear motion through lead screw nuts, guide rails of an X axis and a Y axis adopt crossed roller guide rails, the lead screw nuts are positioned in the middle of the crossed roller guide rails and respectively drive the X axis or the Y axis to move through the lead screw nuts, the crossed roller guide rails can improve the motion precision of the guide rails, and the XY-axis moving table 2 is provided with a first grating ruler 5 and a second grating ruler 10 which respectively form closed-loop control with the first servo motor 3 and the second servo motor 9 so as to realize accurate positioning; the detection sensor 1 is arranged on the Z-axis lifting table 4; the Z-axis lifting table 4 is arranged on the XY-axis displacement table 2. The detection sensor 1 is fixedly connected with an adapter plate 11 through screw fixation, a plurality of hole sites are arranged on the adapter plate, the position of the detection sensor 1 is adjusted according to requirements, the adapter plate 11 is fixed on a Z-axis lifting table 4 through screws, and the Z-axis lifting table 4 comprises a table body 15, a micrometer knob 13, a micrometer scale 12 and a fixing knob 14; the bench body 15 is provided with a micrometer knob 13, a micrometer scale 12 and a fixed knob 14, wherein the micrometer knob 13 is rotated to adjust the height of the Z-axis moving bench, the Z-axis height can be directly read through the micrometer scale 12, and the fixed knob 14 is screwed to fix the Z-axis height, so that the preset height is prevented from being changed due to misoperation. The gear clamping device 8 comprises a bottom moving plate 23, a support body 24, a connecting base plate 25, a clamping main body and a driving system; the bottom moving plate 23 is provided with a support body 24, the support body 24 is connected with a connecting base plate 25, and the clamping main body is fixedly connected with the connecting base plate through a screw; the clamping main body comprises an upper jacking device 16, a clamping handle 26, an upper jacking roller 17, a first roller 18, a second roller 21, a gear clamping rod 19, an adjusting knob 22 and a clamping support seat 38; the upper jacking device 16, the clamping handle 26, the first roller 18, the second roller 21 and the adjusting knob 22 are all arranged on the clamping support seat 38; the upper jacking device 16 comprises an upper jacking main body 31, an upper jacking screw 30, an upper jacking roller 17 adjusting screw 32 and an adjusting fixing screw 33; the upper top main body 31 is fixed on the clamping support seat 38 through screws; the upward jacking device 16 is connected with a clamping handle 26, the adjusting knob 22 is positioned below the clamping handle 26, the tightening upward jacking screw 30 fixes the clamping handle 26, the loosening adjusting knob 22 is used for adjusting the height of the clamping handle 26, the rotating adjusting and fixing screw 33 is used for adjusting the opening amplitude of the clamping handle 26, and the upward jacking roller adjusting screw 32 is used for adjusting the tightness degree of the upward jacking roller 17; the gear to be measured 20 is fixed on a gear clamping rod 19, and the gear clamping rod 19 is clamped on the gear clamping device 8 through an upper jacking roller 17, a first roller 18 and a second roller 21; the bottom moving plate 23 is fixedly connected with the working platform 6 through screws, the position of the bottom moving plate 23 can be adjusted in the X-axis direction by loosening the screws, and the support body 24 is fixedly connected with the bottom moving plate 23 through screws; the driving system comprises a motor bracket 27, an A-axis servo motor 29 and a coupling 28; a axle servo motor 29 passes through screw and motor support 27 fixed connection, motor support 27 is fixed in on connecting backing plate 25, A axle servo motor 29 passes through the fix with screw on motor support 27, A axle servo motor 29 passes through shaft coupling 28 and transmits the moment of torsion to second roller 21, first roller 18, gear clamping rod 19 is cliied jointly to second roller 21 and last top roller 17, the running error between the three roller can offset each other to a certain extent, improve the centre gripping precision, can make things convenient for quick assembly disassembly gear clamping rod 19 simultaneously, second roller 21 rotates, drive first roller 18 through frictional force, it rotates to go up top roller 17 and gear clamping rod 19, thereby the drive is surveyed gear revolve. The fine adjustment device comprises a fine adjustment micrometer 37, a micrometer fixing support 34, a movable guide rail 35 and an adjusting screw 36; the vernier micrometer 37 is fixedly connected with the micrometer fixing support 34 through a screw; the micrometer fixing support 34 is connected with the moving guide rail 35, and the micrometer fixing support 34 slides on the moving guide rail 35; loosening the adjusting screw 36 moves the position of the vernier micrometer 37, and tightening the adjusting screw 36 fixes the position of the vernier micrometer 37. The control system and the data acquisition system comprise a grating ruler, a servo drive motor, an industrial control card and an upper computer; the upper computer sends an instruction to the industrial control card, the industrial control card controls the movement of the servo motor, the grating ruler collects position information and feeds the position information back to the industrial control card to form closed-loop control, and the upper computer collects the position information through the servo encoder and the grating ruler and stores the position information in the memory. The control program and the data acquisition program run on the upper computer, the upper computer and the control card are communicated with each other through a communication cable, the control card and the terminal board are communicated with each other through the communication cable, the driver and the sensor are connected to the terminal board, the control program and the data acquisition program send control signals to the control card, the control card sends the control signals to the driver through the terminal board connected with the control card, the driver drives the motor to move, and the motor rotates to drive the corresponding shaft to rotate, so that the motion of the XYA three shafts is realized respectively. Data collected by the sensor is fed back to the control card through the terminal board, the control card transmits the data to software of the upper computer, and the software stores the data in a local disk. The working platform 6 is a marble platform.

The installation process of gear clamping stick 19 is not hard up and is pushed up screw 30, not hard up adjusting knob 22, will altitude mixture control to suitable position, screws up adjusting knob 22, will push up roller adjusting screw 32 and adjust the suitable elasticity degree with adjusting fixing screw 33, presses the end of centre gripping handle 36, mentions and pushes up roller 17, inserts gear clamping stick 19, then screws up and pushes up screw 30, fixes gear clamping stick 19.

Adjust the relative position relation that detects sensor 1 and gear clamping rod 19 on the gear clamping device 8, after having installed gear clamping rod 19 according to above step, remove the Y axle and make detection sensor 1 and gear clamping rod 19 contact, remove the X axle, observe the registration that detects sensor 1, use the micromatic setting to adjust, until the registration no longer changes, adjust the back fixed can, the method of micromatic setting is as follows: loosening the adjusting screw 36, adjusting the vernier micrometer 37 to a proper position, screwing the adjusting screw 36, fixing the vernier micrometer 37, and adjusting the vernier micrometer 37 according to the reading of the detection sensor 1.

When the gear is detected, the gear to be detected 20 is installed on the gear clamping rod 19, the X axis and the Y axis are moved to determine a starting point, theoretical parameters of the gear to be detected 19 are input, detection can be started, the height of the Z axis needs to be adjusted again every time the gear to be detected is replaced, the height of the Z axis is achieved by rotating the micrometer knob 13, the indication number of the micrometer scale 12 needs to be paid attention to constantly in the adjustment process, and the fixing knob 14 is screwed down to fix the height after the adjustment is finished.

Claims

1. A wire gear machining accuracy detection table, characterized in that it comprises a working platform (6), a detection sensor (1), an XY-axis displacement table (2), a Z-axis lift table (4), and a gear clamping device (8). ), a fine-tuning device (7), a control system and a data acquisition system; the working platform (6) is provided with an XY axis displacement stage (2), a gear clamping device (8) and a fine-tuning device (7); A first servo motor (3) and a second servo motor (9) are arranged on the axis displacement table (2), which are respectively used to drive the linear motion of the XY axis. The servo motor converts the rotation into linear motion through the screw nut, and the X axis The average guide rail with the Y axis adopts the cross roller guide rail, the screw nut is located in the middle of the cross roller guide rail, and the X axis or the Y axis is moved by the screw nut respectively. The cross roller guide rail can improve the motion accuracy of the guide rail. 2) A first grating ruler (5) and a second grating ruler (10) are provided on the top, which form closed-loop control with the first servo motor (3) and the second servo motor (9) respectively to achieve precise positioning; the detection sensor (1) is arranged on the Z-axis lifting platform (4); the Z-axis lifting platform (4) is arranged on the XY-axis displacement platform (2).

2. The wire gear machining accuracy detection table according to claim 1, wherein the detection sensor (1) is fixedly connected to the adapter plate (11) by means of screws, and the adapter plate is provided with a plurality of holes, according to the The position of the detection sensor (1) needs to be adjusted, the adapter plate (11) is fixed on the Z-axis lifting table (4) by screws, and the Z-axis lifting table (4) includes a table body (15), a dial knob (13), a micrometer scale (12) and a fixed knob (14); the table body (15) is provided with a micrometer knob (13), a micrometer scale (12) and a fixed knob (14), wherein Rotate the dial knob (13) to adjust the height of the Z-axis moving table, and tighten the fixing knob (14) to fix the Z-axis height to avoid changing the pre-adjusted height by misoperation.

3. The wire gear machining accuracy detection table according to claim 1, wherein the gear clamping device (8) comprises a bottom moving plate (23), a support body (24), a connection pad (25), a clamp A holding body and a driving system; a support body (24) is provided on the bottom moving plate (23), a connection pad (25) is connected to the support body (24), and the clamping body is connected to the connection pad by screws The board is fixedly connected;

The clamping main body includes a top device (16), a clamping handle (26), a top roller (17), a first roller (18), a second roller (21), and a gear clamping rod (19). ), an adjustment knob (22) and a clamping support seat (38); the top device (16), clamping handle (26), first roller (18), second roller (21), adjustment knob (22) are all arranged on the clamping support seat (38); the upper lift device (16) includes a lift body (31), a lift screw (30), and a lift roller (17) adjustment screw (32) and adjusting fixing screws (33); the upper top body (31) is fixed on the clamping support base (38) by screws; the upper top device (16) is connected with the clamping handle (26), and the adjustment knob (22) is located under the clamping handle (26), tighten the top screw (30) to fix the clamping handle (26), loosen the adjusting knob (22) to adjust the height of the clamping handle (26), rotate Adjust the fixing screw (33) to adjust the opening range of the clamping handle (26), the top roller adjusting screw (32) is used to adjust the tightness of the top roller (17); the gear to be tested (20) is fixed on the gear On the clamping rod (19), the gear clamping rod (19) is clamped on the gear clamping device (8) through the top roller (17), the first roller (18) and the second roller (21). The bottom moving plate (23) is fixedly connected with the working platform (6) by screws, the position of the bottom moving plate (23) can be adjusted in the X-axis direction by loosening the screws, and the supporting body (24) is connected to the bottom moving plate (23) by screws fixed connection;

The drive system includes a motor support (27), an A-axis servo motor (29), and a coupling (28); the A-axis servo motor (29) is fixedly connected to the motor support (27) through screws, and the motor support (27) ) is fixed on the connecting pad (25), the A-axis servo motor (29) is fixed on the motor bracket (27) by screws, and the A-axis servo motor (29) transmits the torque to the second roller through the coupling (28). The roller (21), the first roller (18), the second roller (21) and the top roller (17) jointly clamp the gear clamping rod (19), and the rotation error between the three rollers is constant. To a certain extent, they can cancel each other out, improve the clamping accuracy, and at the same time, the gear clamping rod (19) can be easily and quickly disassembled and assembled, the second roller (21) rotates, and the first roller (18) and the top roller are driven by frictional force. (17) and the gear clamping rod (19) rotate, thereby driving the measured gear to rotate.

4. The wire gear machining accuracy detection table according to claim 1, wherein the fine-tuning device comprises a fine-tuning micrometer (37), a micrometer fixing support (34), a moving guide rail (35) and an adjusting screw (36); The micrometer (37) is fixedly connected with the micrometer fixing support (34) through screws; the micrometer fixing support (34) is connected with the moving guide rail (35), and the micrometer fixing support (34) slides on the moving guide rail (35); Loosen the adjusting screw (36) to move the position of the fine-tuning micrometer (37), and tighten the adjusting screw (36) to fix the position of the fine-tuning micrometer (37).

5. The wire gear machining accuracy testing platform according to claim 1, wherein the control system and the data acquisition system comprise a grating ruler, a servo drive motor, an industrial control card and a host computer; the host computer sends an instruction to the industrial control card , Control the motion of the servo motor through the industrial control card, the grating ruler collects the position information, and feeds it back to the industrial control card to form a closed-loop control.

6. The wire gear machining accuracy detection platform according to claim 1, wherein the acquisition system comprises a sensor, a data acquisition card, and a collection program, and the sensor comprises a motor built-in encoder, a detection sensor (1), a first A grating ruler (5) and a second grating ruler (10), the acquisition program is integrated in the control program, the data acquisition card is integrated on the control card, and the acquisition system is used for acquiring the position information of the XY axes and recording the detection sensor (1) Collected data.

7. The wire gear machining accuracy detection table according to claim 1, wherein the working platform (6) is a marble platform.