CN210664358U - Automatic detection device for diameter and length of worm of speed reducer - Google Patents
Automatic detection device for diameter and length of worm of speed reducer Download PDFInfo
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- CN210664358U CN210664358U CN201922209968.6U CN201922209968U CN210664358U CN 210664358 U CN210664358 U CN 210664358U CN 201922209968 U CN201922209968 U CN 201922209968U CN 210664358 U CN210664358 U CN 210664358U
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Abstract
The utility model discloses a speed reducer worm diameter and length automatic checkout device. The utility model provides a device includes host computer module, drive module, linking module, diameter automated inspection module, length automated inspection module, is surveyed a clamping module, support module, spacing module. In the detection process, the displacement of the left measuring head and the displacement of the right measuring head are obtained by measuring through a grating ruler, and the diameter of the measured shaft section of the worm of the speed reducer is obtained through calculation by combining the initial distance of the two measuring heads; and obtaining the initial position and the end position of the measured shaft section of the worm of the speed reducer by using a grating ruler and a laser displacement sensor, and further calculating to obtain the length of the shaft section of the worm to be measured. The utility model discloses the batch of adaptable multiple specification speed reducer worm disalignment section diameter and length detects.
Description
Technical Field
The utility model relates to a to known design parameter's speed reducer worm automatic checkout device in batches, especially related to speed reducer worm disalignment section diameter and length automatic checkout detection device.
Background
With the rapid development of the mechanical industry in China, the requirement on the machining precision of mechanical parts is higher and higher. The shaft parts have the functions of transmitting torque, supporting and fixing other parts, so that the shaft parts are widely applied to various mechanical devices. The speed reducer is a transmission device which is widely applied to torque transmission and rotating speed conversion between a prime motor and a working machine. The precision of the transmission worm of the speed reducer is improved, the reliability, the stability, the transmission efficiency and the accuracy of equipment are improved, and the assembly error and the vibration and the noise of the device during operation are reduced. Therefore, the detection of the worm of the speed reducer in industrial mass production is very important.
At present, the diameter and the length of different axial sections of a worm of a speed reducer are detected mainly by a manual caliper and data of the diameter and the length are recorded manually, so that the problems of large detection error, low working efficiency, high labor cost and the like exist; some manufacturers use linear inductance displacement sensors to detect the diameters of different axial sections of the worm of the speed reducer, when the linear inductance displacement sensors are used, the initial positions of the inductance displacement sensors need to be manually adjusted according to different types of worms with different diameters, the adjustment is complicated and time-consuming, the use is inconvenient, and the linear inductance displacement sensors are not beneficial to large-batch detection of multiple batches of worms.
To sum up, the detection of the diameter and the length of the worm of the speed reducer at present is mainly performed by manual operation, and a related device which can automatically detect and is simple and convenient to operate and can simultaneously detect the diameter and the length of the shaft section is lacked.
Disclosure of Invention
Aiming at the defects of the background art, the utility model aims to provide an automatic diameter and length detection device for the worm of the speed reducer, which can automatically detect the diameter and the length of different axial sections of the worm of the speed reducer and automatically store the measured parameters; the automatic detection device for the diameter and the length of the worm of the speed reducer is suitable for worm of speed reducers of different models.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model comprises an upper computer module, a driving module, a connecting module, a diameter automatic detection module, a length automatic detection module, a clamping module of a tested piece, a limiting module and a supporting module; the upper computer module is respectively electrically connected with the driving module, the tested piece clamping module, the diameter automatic detection module, the length automatic detection module and the limiting module, and the driving module, the connecting module, the tested piece clamping module, the diameter automatic detection module, the length automatic detection module and the limiting module are all installed on the supporting module.
The upper computer module is used for accurately controlling the diameter and length measuring process, displaying the diameter and length detection values and recording and processing data.
The driving module consists of a servo motor, a coupler, a lead screw and a hydraulic cylinder, wherein the servo motor is connected with the coupler, the servo motor provides driving power for the automatic detection device for the diameter and the length of the worm of the speed reducer, and the coupler connects the output shaft of the motor with the transmission shaft.
The connecting module consists of a plurality of sliding tables and guide rails and is used for driving the diameter automatic detection module and the length automatic detection module to move along the axis of a detected part so as to finish automatic detection of the diameters and the lengths of different shaft sections of the worm of the speed reducer.
The diameter automatic detection module comprises a n-shaped sliding table, a spring, a connecting block, a first grating ruler, a first adapter plate and a measuring head; the diameter automatic detection modules are symmetrically arranged on the two working surfaces of the n-shaped sliding table from left to right, and the driving sliding block is provided with a rack and driven by a servo motor; when the movable sliding table is driven, the driving sliding block drives the driven sliding block to move through the spring and the connecting block, the driven sliding block is provided with a measuring head and a first transfer plate, the other end of the first transfer plate is connected with a first grating ruler movable ruler, and a first grating ruler static ruler is fixed on the n-shaped sliding table; the driven slide block drives the measuring head and the first grating ruler to move together, the displacement of the measuring head is consistent with that of the first grating ruler, and the displacement of the measuring head is obtained through the first grating ruler; the surface of the measuring head in contact with the measured piece is designed into an arc surface, so that the surface of the measured piece is prevented from being damaged during measurement.
The automatic length detection device comprises a sliding table, a second grating ruler, a laser displacement sensor and a second adapter plate; the laser displacement sensor and the second adapter plate are fixed on the sliding table, the other end of the second adapter plate is connected with the second grating ruler movable ruler, and the second grating ruler static ruler is fixedly arranged on the supporting module; the sliding table drives the laser displacement sensor and the second grating scale movable ruler to move along the axis direction of the measured part, the light spot of the laser displacement sensor is right opposite to the axis of the measured part, and the displacement generated by the laser displacement sensor is consistent with the displacement generated by the second grating scale movable ruler.
Furthermore, the clamping module of the tested piece is arranged on the supporting module and consists of an upper tip cone and a lower tip cone; the lower tip cone is fixed, and the upper tip cone is controlled by a hand-operated lead screw; when the device is used, the upper tip cone is controlled to a proper position by the lead screw, the upper tip cone is pressed tightly by the hydraulic cylinder, and the measured piece is fixed under the pressure action of the hydraulic cylinder.
Furthermore, the limit module consists of a limit switch and a limit block; when the diameter is measured, the driving slide block moves to a limit light opening position to trigger a limit switch, the upper computer module controls the servo motor to stop rotating, and sufficient measuring force is provided for a measuring head through a compressed spring; the limiting block is arranged at the movement limit position of the driven sliding block, so that the device is prevented from being damaged due to control system faults.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model provides a worm shaft section diameter automated inspection's device, under the prerequisite that satisfies measurement accuracy requirement (± 5 μm), measurable diameter range is big (the utility model discloses in be 0 ~ 100mm to can adjust according to actual conditions), strong adaptability has improved detection device's commonality.
2. The utility model provides a to worm shaft section diameter automatic checkout device's gauge head and the surface design of worm contact for circular-arcly, guarantee can not harm when measuring and be surveyed a surface.
3. The utility model provides a to worm shaft section diameter automated inspection can detect the disalignment section diameter of the speed reducer worm of arbitrary specification effectively.
4. The utility model provides a worm length automatic checkout device can satisfy the high accuracy on a large scale (the utility model discloses well precision 1 mu m, scope 50 ~ 600mm to can adjust according to actual conditions) non-contact measure, the device design is succinct, easy operation, and the measurement is reliable.
5. The utility model provides a worm length detects can measure the speed reducer worm disalignment segment length of arbitrary specification.
Drawings
Fig. 1 is a schematic view of the overall structure of the automatic detection device for the diameter and length of the worm of the speed reducer of the present invention;
fig. 2 is a schematic structural diagram of the automatic diameter detection module for the different axial sections of the worm of the speed reducer of the present invention;
fig. 3 is a schematic structural diagram of the automatic detection module for different shaft segment lengths of the worm of the speed reducer;
fig. 4 is a schematic structural diagram of the worm clamping module of the speed reducer to be tested according to the present invention;
FIG. 5 is a schematic diagram of the present invention for detecting the diameter of different axial sections of the worm;
FIG. 6 is a schematic diagram of the present invention for detecting different lengths of the worm shaft;
fig. 7 is a flow chart of the work of the automatic detecting device for the diameter and length of the worm of the speed reducer of the present invention;
fig. 8 is a flowchart of the work of the diameter automatic detection module in the speed reducer worm diameter and length automatic detection device of the present invention;
fig. 9 is a flowchart of the automatic length detection module in the automatic worm diameter and length detection device of the speed reducer according to the present invention;
in the figure: 1. a hand wheel; 2. a lead screw a; 3. an outer frame; 4. a servo motor a; 5. a coupling; 6. a lead screw b; 7. a guide rail a; 8. a lower tip cone; 9. a diameter automatic detection module; 10. a length automatic detection module; 11. an upper tip cone; 12. a hydraulic cylinder; 13. a sliding table a; 14. a support frame; 9-1, a n-shaped sliding table 9-2 and a gear; 9-3, a servo motor b; 9-4, a rack; 9-5, a slide block a; 9-6, a spring; 9-7, connecting blocks; 9-8, a sliding block b; 9-9, a first grating scale movable scale; 9-10 parts of a first grating ruler static ruler; 9-11, a first transfer plate; 9-12, measuring head; 9-13 parts of a limiting block; 9-14, limit switch; 10-1, guide rails b; 10-2, a servo motor c; 10-3, a second grating scale movable scale; 10-4, a second grating ruler static ruler; 10-5, a lead screw c; 10-6, a sliding table b; 10-7, a laser displacement sensor; 10-8 and a second adapter plate.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The automatic diameter and length detection device for the worm of the speed reducer comprises an upper computer module, a driving module, a connecting module, a detected piece clamping module, an automatic diameter detection module, an automatic length detection module, a limiting module and a supporting module, wherein the upper computer module is respectively electrically connected with the driving module, the automatic diameter detection module, the automatic length detection module and the limiting module, the driving module is connected with the detected piece clamping module, and the driving module, the connecting module, the detected piece clamping module, the automatic diameter detection module and the automatic length detection module are all fixed on the supporting module.
The upper computer module is used for accurately controlling the automatic detection device for the diameter and the length of the worm of the speed reducer, and displaying, processing and recording the diameter and length detection values.
The driving module is composed of a hand wheel 1; a lead screw a 2; a servo motor a 4; a coupler 5; a lead screw b 6; a hydraulic cylinder 12; gear 9-2; a servo motor b 9-3; a rack 9-4; a servo motor c 10-2; and a lead screw c 10-5. The hand wheel, the lead screw a and the hydraulic cylinder provide driving power for the clamping module of the tested piece; the servo motor a, the coupler, the lead screw b, the gear, the servo motor b and the rack provide driving power for the diameter automatic detection module; the guide rail b, the servo motor c and the lead screw c provide driving power for the length automatic detection module.
The connecting module consists of a plurality of sliding tables 9-1, a sliding table a 13 and a sliding table b 10-6. The automatic diameter detection modules are arranged on the left working surface and the right working surface of the n-shaped sliding table and drive the automatic diameter detection modules to move along the axis of a detected part, so that the detection of different worm diameters is completed; the sliding table a is provided with an upper tip cone in the tested piece clamping module, and the upper tip cone is driven to move along the guide rail b 10-1, so that the tested piece is fixed during measurement; and a laser displacement sensor in the length automatic detection module is arranged on the sliding table b, and the laser displacement sensor is driven to move along the axis of the detected part, so that the automatic detection of different worm lengths is completed.
The diameter automatic detection module consists of a sliding block a 9-5; 9-6 parts of a spring; 9-7 of a connecting block; 9-8 of a sliding block b; a first grating scale movable scale 9-9; 9-10 parts of a first grating ruler static ruler; a first transfer plate 9-11 and a measuring head 9-12. The whole device is bilaterally symmetrical and is respectively arranged on the left working surface and the right working surface of the n-shaped sliding table, the rack 9-4 is arranged on the sliding block a, the sliding block b is driven to move by a spring through a connecting block when being driven, a measuring head and a first adapter plate are arranged on the sliding block b, the adapter plate is connected with the sliding block b and a first grating ruler movable ruler, and a first grating ruler static ruler is fixed on the n-shaped sliding table; when the diameter is detected, the sliding block b drives the measuring head and the first grating ruler to move together, and the displacement of the measuring head is obtained through the first grating ruler; under the condition of presetting the initial distance between the left measuring head and the right measuring head, the diameter of the shaft section of the worm to be measured is equal to the sum of the initial distance between the left measuring head and the right measuring head and the actual displacement generated by the left measuring head and the right measuring head.
The automatic length detection module consists of a second grating scale movable scale 10-3; a second grating scale static scale 10-4; a laser displacement sensor 10-7 and a second adapter plate 10-8. The laser displacement sensor and the second adapter plate are fixed on the sliding table b, the second adapter plate is connected with the sliding table b and the second grating ruler movable ruler, and the second grating ruler static ruler is fixedly installed on the support frame 14. When the length is detected, the sliding table b drives the laser displacement sensor and the second grating scale movable ruler to move together along the axis direction of the measured part, the light spot of the laser displacement sensor is right opposite to the axis of the measured part, the distance from the measured part to the measured part can be detected by the laser displacement sensor through the laser triangle principle, so that at the starting and stopping positions of a certain worm shaft section, the distances from the laser displacement sensor are different due to different diameters of different shaft sections of the worm, the laser displacement sensor senses the jump of the distance, the stepped displacement signal is transmitted to the upper computer, the length values of different worms are obtained through calculation according to a length detection method, and the length values are stored.
The limiting module consists of limiting blocks 9-13 and limiting switches 9-14 which are fixed on the n-shaped sliding table. The limiting blocks are provided with 4 blocks, the left block and the right block are provided with two blocks, and the limiting switches are provided with two blocks, one block is provided at the left side and one block is provided at the right side. For any one of the left side and the right side, the limit switch is fixed at a position above the advancing route of the slide block a, when the slide block a moves to the position right below the limit switch, the limit switch is triggered, the limit switch generates a high-level signal to be transmitted to the upper computer, and the upper computer controls the servo motor b 9-3 to stop rotating after receiving the high-level signal; the stopper is installed on two sides about how many shape slip table working faces, guarantees to break down at control system, when unable controlling servo motor b, restricts the removal of direct automatic check out module mechanistically, prevents to damage the device.
The tested piece clamping module consists of a lower tip cone 8 and an upper tip cone 11. Wherein the lower tip cone is fixed on the support frame, and the upper tip cone is connected with the hydraulic cylinder and is fixedly arranged on the sliding table a together. When the device is used, one end face of a measured piece is placed on the lower tip cone, the upper tip cone and the hydraulic cylinder are driven to move downwards by the lead screw and the sliding table a through hand cranking and hand wheel operation, when the upper tip cone contacts with the other end face of the measured piece, the hydraulic cylinder is controlled by the upper computer to provide enough fastening force for the upper tip cone, the measured piece is fastened and fixed, and preparation is made for automatic detection of the diameter and the length; after the measurement is received, the pressing force of the opposite and upper tip cones is removed through the control of the upper computer and the hydraulic cylinder, and then the upper tip cones are driven to move upwards through the hand-cranking and the hand wheel to leave the measured piece.
The support module is composed of an outer frame 3 and a support frame 14. The outer frame divides the space range of the automatic detection device for the diameter and the length of the worm of the whole speed reducer, and can be externally connected with an auxiliary detection module such as a lighting module and the like, so that the operation of technicians is facilitated; the support frame is placed in the outrigger, is the skeleton of whole device, and drive module, diameter automated inspection module, length automated inspection module are surveyed a centre gripping module, all install on it, cooperate each other, and two working faces around the slip table a divide into, and diameter automated inspection module is responsible for to hou mian working face, and length automated inspection module and a centre gripping module are responsible for to preceding working face.
When the diameter is detected, the upper computer drives the n-shaped sliding table to move through the driving module, and the n-shaped sliding table moves to a preset position and stops; the upper computer drives the servo motor b to drive the sliding block a to move along a sliding rail which is designed in advance on the sliding table through the driving module; the sliding block a drives the sliding block b to move together through a spring and a connecting block; the sliding block b is rigidly connected with a connecting block, a measuring head and an adapter plate; when the measuring head contacts the surface of the tested worm, the sliding block b stops moving due to the obstruction of the tested worm, but the sliding block a continues moving forward under the driving of the servo motor, at the moment, a connecting spring between the sliding block a and the sliding block b is compressed until the sliding block a triggers the limit switch, the upper computer receives a signal to control the servo motor to stop rotating, and the sliding block a stops moving. The compressed spring provides a measuring force when the diameter is measured, and the tight contact between the measuring head and the surface of the tested worm is ensured; the section of the measuring head is designed into a circular arc shape with a small diameter, so that the surface of a measured piece cannot be crushed during measurement, and the measurement error caused by the geometric size of the measuring head near the step surface of the measured piece is avoided; the movable ruler of the first grating ruler is rigidly connected with the sliding block b through the adapter plate, the static ruler of the first grating ruler is fixed on the sliding table, and the moving distance of the measuring head can be measured through the grating ruler; the left side and the right side are the same, and the diameter of the tested worm can be calculated by combining the displacement generated during the measurement of the two measuring heads under the condition that the initial positions of the two measuring heads are known; after the current worm is measured, the upper computer controls the sliding block a to return to the original position, drives the n-shaped sliding table to drive the diameter automatic detection module to move towards the next worm shaft section, and repeats the measuring process until the whole worm is measured.
When the length is detected, the light spot of the laser displacement sensor is over against the axis of a detected worm, the detected worm starts to be scanned, the design parameters of the worm are known, so that the measurement efficiency is improved, the laser displacement sensor can be fed fast according to the design length of the shaft section of the detected worm, after the fast feeding is completed, the upper computer controls the motion mode of the laser displacement sensor to move slowly, the scanning and sampling are performed, after the designed slow moving distance is completed, the scanning of the shaft section of the worm is completed, and the next shaft section of the worm starts to be scanned. The movable scale of the second grating scale is rigidly connected with the sliding table b through the second adapter plate, and the laser displacement sensor is also carried on the sliding table b, so that the displacement of the movable scale of the laser displacement sensor and the second grating scale is consistent, and the position information of the laser sensor can be measured through the second grating scale. When light spots of the laser sensor are on different worm shaft sections, the distances from the laser sensor are different, after the scanning of the current worm shaft section is finished, the upper computer obtains a step distance signal in a slow moving range of the upper computer through the laser displacement sensor, and the position of a step point is obtained through the measurement of the grating ruler; repeating the measuring process until all the lengths of the shaft sections of the tested worm are scanned, wherein the difference of the positions of two adjacent step point positions is the length measuring value of the corresponding worm shaft section; the diameter detection and the length detection can be carried out simultaneously, and the working efficiency is improved.
The automatic measurement method for the diameter of the worm of the speed reducer, as shown in fig. 5, comprises the following specific contents:
firstly, the tested worm of the speed reducer is fixed, all connecting cables are communicated, the power line is guaranteed to be grounded, the function of the whole system is debugged, and the normal work of the whole system is guaranteed.
Then the servo motor controls the n-shaped sliding table to drive the diameter automatic detection module to move to the position of the shaft section of the worm to be detected; when the measuring head is completely pressed against the surface of the tested worm, the displacement of the left measuring head and the displacement of the right measuring head are respectively X measured by the grating ruler1And x2Then, the diameter of the worm to be measured is easily calculated:
D＝X-x1-x2(1)
after the upper computer stores the data, the measuring head is controlled to return to the original position, the n-shaped sliding table is moved to the next measured worm shaft section, and the process is repeated until the diameter of all the shaft sections of the worm is detected.
In the embodiment, the diameter variation range of the tested worm is 5 mm-200 mm, and the detection precision requirement is +/-5 microns; according to the detection precision requirement and the diameter variation range of the worm to be detected, the range of the selected grating ruler is 0 mm-150 mm, the measurement precision is +/-1 mu m, and the left measuring head and the right measuring head are matched to meet the detection requirement.
The automatic measuring method for the length of the worm of the speed reducer, as shown in fig. 6, comprises the following specific contents:
firstly, the tested worm of the speed reducer is fixed, all connecting cables are communicated, the power line is guaranteed to be grounded, the function of the whole system is debugged, and the normal work of the whole system is guaranteed.
Then, the measurement is started, and for the current measured worm shaft section, the initial position coordinate y can be obtained1(ii) a Because the design parameters of the tested worm are known, in order to improve the working efficiency, a rapid feeding quantity delta is provided for the laser displacement sensor according to the design length of the shaft section of the tested worm; after the laser displacement sensor finishes rapid feeding, the upper computer controls the laser displacement sensor to start slow moving scanning, the moving distance is S, the scanning step length is a, and after the slow moving distance is S, the upper computer obtains the position y of a step point through the measurement of a grating ruler in the slow moving range S2(ii) a The length of the measured shaft section of the worm is easy to calculate:
L＝y2-y1(2)
after the upper computer records data, continuing to measure the length of the next worm shaft section according to the method until the length of all the worm shaft sections is measured; the starting position of the next worm shaft segment is the ending position of the last worm shaft segment, which is y in this embodiment2。
Regarding the selection of the fast feed amount Δ, the slow moving distance S, and the scanning step a of the laser displacement sensor: if the requirement of the measurement precision of the length is +/-delta and the design length of the measured shaft section of the worm is lambda, then:
Δ＝λ-S (3)
S＝20*δ (4)
a＝δ/10 (5)
in the embodiment, the length of the tested worm rod ranges from 50mm to 600mm, and the requirement of measurement precision is that delta is +/-20 microns; according to the precision requirement and the length change range, the range of the selected grating ruler is 0 mm-600 mm, the measurement precision is +/-1 mu m, and the measurement requirement is met; assuming that the design value of a certain measured worm shaft length is λ 100mm, according to the design requirement, the slow moving distance S is 20 × 0.02 — 0.4mm, the fast feeding distance Δ is λ -S100-0.4 — 99.6mm, and the step length a is 20/10 μm.
In this embodiment, the specific implementation steps of the working process of the automatic detection device for the diameter and length of the worm of the speed reducer are as shown in fig. 7:
1) all connecting cables are communicated, the power line is guaranteed to be grounded, the function of the whole system is debugged, and the normal work of the whole system is guaranteed.
2) And fixing the tested worm.
3) The sliding table a is provided with an automatic diameter detection module, and the diameter of each worm is detected according to the method.
4) The sliding table b is provided with an automatic length detection module, and the length of each worm rod is detected according to the method.
5) After the length and the diameter are measured, all the data are stored, all the devices return to the original positions, and the worm to be measured is dismounted.
Step 3) measuring the diameter of the worm and step 4) measuring the length of the worm can be synchronously carried out; the specific work flow is shown in fig. 8 and 9.
The above, only be the utility model discloses a preferred embodiment case, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (3)
1. The utility model provides a speed reducer worm diameter and length automatic checkout device which characterized in that: the device comprises an upper computer module, a driving module, a connecting module, an automatic diameter detection module, an automatic length detection module, a tested piece clamping module, a limiting module and a supporting module; the upper computer module is electrically connected with the driving module, the tested piece clamping module, the diameter automatic detection module, the length automatic detection module and the limiting module respectively, and the driving module, the connecting module, the tested piece clamping module, the diameter automatic detection module, the length automatic detection module and the limiting module are all arranged on the supporting module;
the upper computer module is used for accurately controlling the diameter and length measuring process, displaying the diameter and length detection values and recording and processing data;
the driving module consists of a servo motor, a coupler, a lead screw and a hydraulic cylinder, wherein the servo motor is connected with the coupler, the servo motor provides driving power for the automatic detection device for the diameter and the length of the worm of the speed reducer, and the coupler connects the output shaft of the motor with the transmission shaft;
the connecting module consists of a plurality of sliding tables and guide rails and is used for driving the diameter automatic detection module and the length automatic detection module to move along the axis of a detected piece so as to finish automatic detection of the diameters and the lengths of different shaft sections of the worm of the speed reducer;
the diameter automatic detection module comprises a n-shaped sliding table, a spring, a connecting block, a first grating ruler, a first adapter plate and a measuring head; the diameter automatic detection modules are symmetrically arranged on the two working surfaces of the n-shaped sliding table from left to right, and the driving sliding block is provided with a rack and driven by a servo motor; when the movable sliding table is driven, the driving sliding block drives the driven sliding block to move through the spring and the connecting block, the driven sliding block is provided with a measuring head and a first transfer plate, the other end of the first transfer plate is connected with a first grating ruler movable ruler, and a first grating ruler static ruler is fixed on the n-shaped sliding table; the driven slide block drives the measuring head and the first grating ruler to move together, the displacement of the measuring head is consistent with that of the first grating ruler, and the displacement of the measuring head is obtained through the first grating ruler; the surface of the measuring head, which is contacted with the measured piece, is designed into an arc surface, so that the surface of the measured piece is prevented from being damaged during measurement;
the automatic length detection device comprises a sliding table, a second grating ruler, a laser displacement sensor and a second adapter plate; the laser displacement sensor and the second adapter plate are fixed on the sliding table, the other end of the second adapter plate is connected with the second grating ruler movable ruler, and the second grating ruler static ruler is fixedly arranged on the supporting module; the sliding table drives the laser displacement sensor and the second grating scale movable ruler to move along the axis direction of the measured part, the light spot of the laser displacement sensor is right opposite to the axis of the measured part, and the displacement generated by the laser displacement sensor is consistent with the displacement generated by the second grating scale movable ruler.
2. The automatic detection device for the diameter and the length of the worm of the speed reducer according to claim 1, characterized in that:
the clamping module of the tested piece is arranged on the supporting module and consists of an upper tip cone and a lower tip cone; the lower tip cone is fixed, and the upper tip cone is controlled by a hand-operated lead screw; when the device is used, the upper tip cone is controlled to a proper position by the lead screw, the upper tip cone is pressed tightly by the hydraulic cylinder, and the measured piece is fixed under the pressure action of the hydraulic cylinder.
3. The automatic detection device for the diameter and the length of the worm of the speed reducer according to claim 1, characterized in that:
the limiting module consists of a limiting switch and a limiting block; when the diameter is measured, the driving slide block moves to a limit light opening position to trigger a limit switch, the upper computer module controls the servo motor to stop rotating, and sufficient measuring force is provided for a measuring head through a compressed spring; the limiting block is arranged at the movement limit position of the driven sliding block, so that the device is prevented from being damaged due to control system faults.
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| CN201922209968.6U CN210664358U (en) | 2019-12-11 | 2019-12-11 | Automatic detection device for diameter and length of worm of speed reducer |
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| CN201922209968.6U CN210664358U (en) | 2019-12-11 | 2019-12-11 | Automatic detection device for diameter and length of worm of speed reducer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823114A (en) * | 2019-12-11 | 2020-02-21 | 杭州嘉诚机械有限公司 | Automatic detection device and method for diameter and length of worm of speed reducer |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823114A (en) * | 2019-12-11 | 2020-02-21 | 杭州嘉诚机械有限公司 | Automatic detection device and method for diameter and length of worm of speed reducer |
| CN110823114B (en) * | 2019-12-11 | 2024-05-31 | 杭州嘉诚机械有限公司 | Automatic detection device and method for diameter and length of worm of speed reducer |
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