CN212480002U - Contact type telescopic guiding and positioning anti-collision protection system and measurement platform - Google Patents
Contact type telescopic guiding and positioning anti-collision protection system and measurement platform Download PDFInfo
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- CN212480002U CN212480002U CN202020766167.XU CN202020766167U CN212480002U CN 212480002 U CN212480002 U CN 212480002U CN 202020766167 U CN202020766167 U CN 202020766167U CN 212480002 U CN212480002 U CN 212480002U
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Abstract
The utility model provides a scalable guiding orientation's of contact anticollision protection system, including uide bushing, dense pearl sliding sleeve, sliding shaft, spring, baffle, contact sensing subassembly, movable contact, retainer plate and optical lens, dense pearl sliding sleeve is installed the medial surface of uide bushing, the sliding shaft passes dense pearl sliding sleeve and with the retainer plate is connected, optical lens installs on the retainer plate, the baffle with the uide bushing connects, the spring clamp is established between baffle, the sliding shaft, the movable contact clamp is established between sliding shaft, the retainer plate, the contact sensing subassembly is fixed on the uide bushing. The utility model has the advantages that: the anti-collision protection is adopted, a reflection receiving device is not needed, the distance between a protected device and a sample is not required, the universality is wide, the triggering is sensitive, the contact is power-off protection, the requirement on the environment is avoided, the cost is low, and the anti-collision protection is very safe and reliable due to the mechanical structure.
Description
Technical Field
The utility model relates to a measuring instrument especially relates to a scalable guiding orientation's of contact anticollision protection system and measuring platform.
Background
The anti-collision system is generally used in the fields of precision measurement, optics and the like; the current anti-collision protection system applied in the field of precision optical measurement mainly has the following schemes:
1. the pulse laser ranging method includes the steps that a laser signal is emitted to a target through pulse laser ranging, the laser signal is reflected when the laser signal touches the target, and the distance to be located is calculated through the round trip time of receiving the light signal;
2. continuous wave phase laser ranging is a method in which a target to be measured is irradiated with a continuously modulated laser wave, and the distance to the target to be measured can be calculated from the phase change caused by the round trip of the speed of light to be measured. In order to ensure the measurement accuracy, a laser reflector is generally mounted on a measured object;
3. the ultrasonic ranging is to measure the time of the sound wave reflected back when meeting a target after being transmitted by utilizing the known propagation speed of the ultrasonic wave in the air, and calculate the actual distance between a transmitting point and a sample according to the time difference between the transmission and the reception.
The drawbacks of the above prior art solutions are as follows:
1) in practice, the fact that laser ranging has large ranging error and inaccurate positioning, the laser ranging is mistakenly collided and protected parts are damaged due to the diffuse reflection problem of light, the surface reflectivity of different material samples and the like is found.
2) In practice, the laser ranging device is difficult to manufacture, high in cost, and high in environmental requirement, and an optical system needs to be kept clean.
3) The ultrasonic ranging has low precision and high cost, and a blind area of dozens of millimeters is arranged in the minimum detection area, so that an optical device with small working distance cannot be protected at all.
4) The current non-contact distance measurement is difficult to satisfy the positioning measurement of sample surfaces with small volume, low reflectivity, high height, sharp and the like.
Therefore, how to provide an anti-collision system which is not easy to damage, has low cost, has low requirements on environment and has a wide application range is a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a scalable guiding orientation's of contact anticollision protection system and measuring platform.
The utility model provides a scalable guiding orientation's of contact anticollision protection system, including guide shaft sleeve, dense pearl sliding sleeve, sliding shaft, spring, baffle, contact sensing subassembly, movable contact, retainer plate and optical lens, dense pearl sliding sleeve is installed guide shaft sleeve's medial surface, the sliding shaft passes dense pearl sliding sleeve and with the retainer plate is connected, the sliding shaft with dense pearl sliding sleeve is rolling friction, optical lens installs on the retainer plate, the baffle with guide shaft sleeve connects, the spring clamp is established between baffle, the sliding shaft, the spring plays the reset action, the movable contact clamp is established between sliding shaft, the retainer plate, contact sensing subassembly is fixed on the guide shaft sleeve, work as when anticollision protection system along forward motion and with sample surface contact, movable contact presss from both sides, The sliding shaft synchronously moves reversely until the movable contact contacts with the contact type sensing assembly, so that a contact signal is triggered.
As a further improvement, the head of sliding shaft passes the dense ball sliding sleeve and with the afterbody threaded connection of retainer plate, the afterbody of sliding shaft with be equipped with conical surface location structure between the afterbody of guide shaft sleeve, the baffle is fixed on the afterbody of guide shaft sleeve, the spring clamp is established between the afterbody of baffle, sliding shaft.
As a further improvement of the present invention, the optical lens is screwed to the head of the retainer ring, and the movable contact is clamped between the head of the sliding shaft and the tail of the retainer ring.
As a further improvement, the tail of the sliding shaft is provided with a conical surface positioning lug, and the tail of the guide shaft sleeve is provided with a conical surface positioning chamfer matched with the conical surface positioning lug.
As a further improvement of the utility model, the contact sensing subassembly includes that trigger circuit board and setting are in contact probe on the trigger circuit board, be equipped with on the movable contact with contact probe matched with contact lug.
As a further improvement, the movable contact is provided with an anti-rotation lug, the guide shaft sleeve is provided with an anti-rotation groove, and the anti-rotation lug is arranged in the anti-rotation groove.
The utility model also provides a measuring platform, include as above-mentioned any one the scalable guiding orientation's of contact anticollision protection system.
As a further improvement of the present invention, the measuring platform further includes a driving system, the driving system includes a driving part, an executing part and a control part, the control part is connected to the driving part, the driving part is connected to the executing part, the executing part is connected to the guide shaft sleeve or the baffle, and the control part is connected to the contact type sensing component.
The utility model has the advantages that: through above-mentioned scheme, adopt contact anticollision protection, need not reflection receiving arrangement, protected device does not have the requirement to the sample distance, and the commonality is wide, triggers sensitively, contact promptly power protection, does not have the requirement to the environment, and with low costs, owing to be mechanical structure, very safe and reliable, not fragile.
Drawings
Fig. 1 is an exploded schematic view of the contact type retractable guiding and positioning anti-collision protection system of the present invention.
Fig. 2 is a schematic cross-sectional view of the contact type retractable guiding and positioning anti-collision protection system of the present invention.
Fig. 3 is an assembly schematic diagram of the contact type retractable guiding and positioning anti-collision protection system of the present invention.
Detailed Description
The present invention will be further described with reference to the following description and embodiments.
As shown in fig. 1 to 3, in order to solve the problem that an objective lens or an important measuring head device in a measuring head of an optical device at present is damaged due to collision, the utility model provides a collision avoidance system of contact-type telescopic guiding location, including a guide shaft sleeve 1, a dense ball sliding sleeve 2, a sliding shaft 3, a spring 4, a baffle 5, a contact sensing component, a movable contact 8, a retainer ring 10 and an optical lens 11, the dense ball sliding sleeve 2 is installed on the inner side surface of the guide shaft sleeve 1, the sliding shaft 3 passes through the dense ball sliding sleeve 2 and is connected with the retainer ring 10, the sliding shaft 3 and the dense ball sliding sleeve 2 are in rolling friction, the optical lens 11 is installed on the retainer ring 10, the baffle 5 is connected with the guide shaft sleeve 1, the spring 4 is clamped between the baffle 5 and the sliding shaft 3, the spring 4 plays a resetting role, the movable contact 8 is clamped on the sliding shaft 3, Between the fixed rings 10, the contact type sensing assembly is fixed on the guide shaft sleeve 1, when the anti-collision protection system moves along the forward direction and contacts with the surface of a sample, the movable contact 8 and the sliding shaft 3 synchronously move in the reverse direction until the movable contact 8 contacts with the contact type sensing assembly, so that a contact signal is triggered.
As shown in fig. 1 to 3, the head of the sliding shaft 3 passes through the ball-sealing sliding sleeve 2 and is in threaded connection with the tail of the fixed ring 10, a conical surface positioning structure is arranged between the tail of the sliding shaft 3 and the tail of the guide shaft sleeve 1, the baffle 5 is fixed on the tail of the guide shaft sleeve 1, and the spring 4 is clamped between the baffle 5 and the tail of the sliding shaft 3.
As shown in fig. 1 to 3, the optical lens 11 is screwed to the head of the fixed ring 10, and the movable contact 8 is interposed between the head of the sliding shaft 3 and the tail of the fixed ring 10.
As shown in fig. 1 to 3, a conical positioning protrusion 31 is disposed at the tail of the sliding shaft 3, and a conical positioning chamfer 12 matched with the conical positioning protrusion 31 is disposed at the tail of the guide sleeve 1.
As shown in fig. 1 to 3, the touch sensor assembly includes a trigger circuit board 7 and a touch probe 71 disposed on the trigger circuit board 7, and the movable contact 8 is provided with a touch bump 82 engaged with the touch probe 71.
As shown in fig. 1 to 3, the movable contact 8 is provided with an anti-rotation protrusion 81, the guide sleeve 1 is provided with an anti-rotation groove 11, and the anti-rotation protrusion 81 is disposed in the anti-rotation groove 11.
The utility model provides a pair of scalable guiding orientation's of contact anticollision protection system, its assembling process as follows:
firstly, a dense-bead sliding sleeve 2 is arranged on a guide shaft sleeve 1;
secondly, the sliding shaft 3 penetrates through the dense ball sliding sleeve 2, so that the sliding shaft 3 penetrates out of the guide shaft sleeve 1;
thirdly, the movable contact 8 is sleeved into the sliding shaft 3, the movable contact 8 is clamped by upwards rotating the fixed ring 10 and the thread of the sliding shaft 3, and the anti-rotation lug 81 of the movable contact 8 is matched with the anti-rotation groove 11 of the guide shaft sleeve 1 (see fig. 1);
fourthly, fixing the trigger circuit board 7 on the guide shaft sleeve 1 through a trigger circuit board fixing screw 9 (see fig. 3), and ensuring that the distance between a contact probe 71 on the trigger circuit board 7 and the movable contact 8 is about 0.5 mm;
fifthly, a spring 4 is arranged on the sliding shaft 3 (see figure 2), a baffle plate 5 is covered and locked by a fixing screw 6 (see figure 3);
finally, the optical lens 11 is screwed to the fixing ring 10 (see fig. 2).
The utility model also provides a measuring platform, include as above-mentioned any one the scalable guiding orientation's of contact anticollision protection system.
The measuring platform further comprises a driving system, the driving system comprises a driving part, an execution part and a control part, the control part is connected with the driving part, the driving part is connected with the execution part, the execution part is connected with the guide shaft sleeve or the baffle, and the control part is connected with the contact type sensing assembly.
The utility model provides a pair of scalable guiding orientation's of contact anticollision protection system, its theory of operation as follows:
because the sliding shaft 3, the movable contact 8, the fixed ring 10 and the optical lens 11 are connected into a whole, when the optical lens 11 moves downwards, the optical lens is contacted with the surface of a sample, and the movable contact 8 is driven to move upwards by slight force due to the reaction of the force to be contacted with the trigger circuit board 7, the trigger circuit board 7 sends a signal to the driving system to stop the downward movement of the optical lens 11 to achieve the protection effect, the optical lens 11 is far away from the sample through external driving force, the spring 4 extends reversely, the sliding shaft 3 is guided and pushed by the bead-sealing sliding sleeve 2 to separate the movable contact 8 from the trigger circuit board 7, and the optical lens 11 is reset to the original position due to the conical surface matching mode of the guide shaft sleeve 1 and the sliding shaft 3, so that the positioning effect is achieved.
The utility model provides a contact type telescopic guiding and positioning anti-collision protection system, which is characterized in that the size of the sample shape is not considered, the size of the collision force is adjusted through the size of the spring force, important devices can be telescopic and buffered after contact, the collision immediately triggers the signal power-off protection, and simultaneously, the design is easy to be integrated with a protected piece; the structure is simple, the device is integrated and miniaturized, the reliability is strong, and the cost is greatly reduced.
The utility model provides a pair of scalable guiding orientation's of contact anticollision protection system and measuring platform has following improvement:
1) the anti-collision device adopts a dense-bead guiding telescopic motion mode, and is arranged between a guiding shaft sleeve 1 and a sliding shaft 3 through a dense-bead sliding sleeve 2 for guiding, so that the traditional dry friction is changed into rolling friction, the sliding shaft 3 is driven to move when an optical lens 11 moves up and down, and the sliding shaft 3 is reset through the compression force (or the stretching force) of a spring 4 (see figure 2), thereby solving the problems of abrasion, increased friction force and collision failure caused by the dry friction;
2) in a conical surface positioning mode (see fig. 2), when the guide shaft sleeve 1 and the sliding shaft 3 move relatively and return to the original position, the positioning problem after equipment collision is solved through the guiding and positioning of the conical surfaces of each other;
3) in the anti-rotation mechanical structure mode (see fig. 1), when the thread of the fixed ring 10 and the thread of the sliding shaft 3 are screwed upwards, the movable contact 8 is clamped tightly, and the boss of the movable contact 8 is matched with the concave part of the guide shaft sleeve 1, so that a structural member (see fig. 2) formed by connecting the optical lens 11, the fixed ring 10 and the sliding shaft 3 into a whole cannot rotate, and the problem of rotation of the positioning shaft is solved;
4) when the movable contact 8 moves upwards to contact with the trigger circuit board 7, the trigger circuit board 7 signals the driving system to stop the downward movement of the optical lens 11 or power off the whole system (equipment) to play a role of emergency stop protection in a mechano-electronic combination trigger power-off mode (see fig. 2).
The utility model provides a pair of scalable guiding orientation's of contact anticollision protection system and measuring platform has following advantage:
1) the contact type anti-collision protection mode is adopted, a reflection receiving device is not needed, the distance between a protected device and a sample is not required, and the universality is wide.
2) The trigger is sensitive, the contact is power-off protection, the requirement on the environment is avoided, the cost is low, and the trigger is very safe and reliable due to the mechanical structure.
3) No matter the sample volume, height and reflectivity can all play the crashproof guard action very sensitively.
4) According to the contact type anti-collision design principle, the protective structure is well designed, so that the equipment is attractive, and the economic value is improved.
The utility model provides a pair of scalable guiding orientation's of contact anticollision protection system can be used to some industrial detection instrument, high-accuracy platform, for example image micro-measurement gauge head, high power objective, interference objective, nanometer gauge head, nanometer displacement platform etc..
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (8)
1. The utility model provides a scalable direction location's of contact anticollision protection system which characterized in that: the anti-collision protective system comprises a guide shaft sleeve, a dense ball sliding sleeve, a sliding shaft, a spring, a baffle, a contact type sensing assembly, a movable contact, a fixed ring and an optical lens, wherein the dense ball sliding sleeve is arranged on the inner side surface of the guide shaft sleeve, the sliding shaft penetrates through the dense ball sliding sleeve and is connected with the fixed ring, the sliding shaft and the dense ball sliding sleeve are in rolling friction, the optical lens is arranged on the fixed ring, the baffle is connected with the guide shaft sleeve, the spring is clamped between the baffle and the sliding shaft, the spring plays a role of resetting, the movable contact is clamped between the sliding shaft and the fixed ring, the contact type sensing assembly is fixed on the guide shaft sleeve, when the anti-collision protective system moves along the forward direction and is in contact with the surface of a sample, the movable contact and the sliding shaft synchronously and reversely move until the movable contact is in contact with the contact type sensing assembly, thereby triggering a touch signal.
2. The contact telescopically guided crash protection system of claim 1, wherein: the head of sliding shaft passes the dense ball sliding sleeve and with the afterbody threaded connection of retainer plate, the afterbody of sliding shaft with be equipped with conical surface location structure between the afterbody of guide shaft sleeve, the baffle is fixed on the afterbody of guide shaft sleeve, the spring clamp is established between the afterbody of baffle, sliding shaft.
3. The contact telescopically guided crash protection system of claim 2, wherein: the optical lens is in threaded connection with the head of the fixed ring, and the movable contact is clamped between the head of the sliding shaft and the tail of the fixed ring.
4. The contact telescopically guided crash protection system of claim 2, wherein: the tail of the sliding shaft is provided with a conical surface positioning lug, and the tail of the guide shaft sleeve is provided with a conical surface positioning chamfer matched with the conical surface positioning lug.
5. The contact telescopically guided crash protection system of claim 1, wherein: the contact type sensing assembly comprises a trigger circuit board and a contact probe arranged on the trigger circuit board, and a contact convex block matched with the contact probe is arranged on the movable contact.
6. The contact telescopically guided crash protection system of claim 5, wherein: the movable contact is provided with an anti-rotation lug, the guide shaft sleeve is provided with an anti-rotation groove, and the anti-rotation lug is arranged in the anti-rotation groove.
7. A measurement platform, characterized by: collision protection system comprising a contact telescopically guided positioning according to any of claims 1-6.
8. The measurement platform of claim 7, wherein: the measuring platform further comprises a driving system, the driving system comprises a driving part, an execution part and a control part, the control part is connected with the driving part, the driving part is connected with the execution part, the execution part is connected with the guide shaft sleeve or the baffle, and the control part is connected with the contact type sensing assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020766167.XU CN212480002U (en) | 2020-05-11 | 2020-05-11 | Contact type telescopic guiding and positioning anti-collision protection system and measurement platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020766167.XU CN212480002U (en) | 2020-05-11 | 2020-05-11 | Contact type telescopic guiding and positioning anti-collision protection system and measurement platform |
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| CN212480002U true CN212480002U (en) | 2021-02-05 |
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| CN202020766167.XU Active CN212480002U (en) | 2020-05-11 | 2020-05-11 | Contact type telescopic guiding and positioning anti-collision protection system and measurement platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021227549A1 (en) * | 2020-05-11 | 2021-11-18 | 深圳市中图仪器股份有限公司 | Anti-collision protection system employing retraction upon contact and guided positioning, and measurement platform |
-
2020
- 2020-05-11 CN CN202020766167.XU patent/CN212480002U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021227549A1 (en) * | 2020-05-11 | 2021-11-18 | 深圳市中图仪器股份有限公司 | Anti-collision protection system employing retraction upon contact and guided positioning, and measurement platform |
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