CN216803084U - Torsion control device of optical device positioning clamp - Google Patents
Torsion control device of optical device positioning clamp Download PDFInfo
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- CN216803084U CN216803084U CN202121519151.XU CN202121519151U CN216803084U CN 216803084 U CN216803084 U CN 216803084U CN 202121519151 U CN202121519151 U CN 202121519151U CN 216803084 U CN216803084 U CN 216803084U
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Abstract
The utility model provides a torsion control device of an optical device positioning clamp, which comprises a button column, wherein the button column comprises a push rod and a connecting rod which are connected, and one end of the push rod, which is far away from the connecting rod, is connected with a constant force rotating device. Compared with the prior art, the utility model has the beneficial effects that: one end of the push rod, which is far away from the connecting rod, is connected with a constant force rotating device. The constant-force rotating device applies constant torque force to the ejector rod, when the optical device positioning clamp clamps the optical device, the optical device applies reaction force to the ejector rod, the reaction force is positively correlated with the screwing degree of the ejector rod, and the tighter the rotating degree of the ejector rod, the larger the reaction force is until the ejector rod clamps the optical device. Because the constant force rotating device applies the torque force to the ejector rod and the reaction force is the same, the ejector rod rotates to a proper position and does not rotate any more, and the optical device is prevented from being broken by the ejector rod.
Description
Technical Field
The utility model relates to a torsion control device of an optical device positioning clamp, belonging to the field of optical device manufacturing.
Background
Please refer to patent No. CN209919706U, which discloses an optical device positioning clamp and an optical device positioning apparatus. The patent has the defects that when the knob post rotates, the torsion is too small, and the optical device cannot be clamped; if the torque is too large, the optical device is crushed. It is difficult to control the amount of rotational force applied to the torsion beam.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: how to control the magnitude of the rotational force applied to the torsion bar.
In order to solve the technical problems, the utility model provides the following technical scheme: the torsion control device of the optical device positioning clamp comprises a button column, wherein the button column comprises a push rod and a connecting rod which are connected, and one end, far away from the connecting rod, of the push rod is connected with a constant force rotating device.
Further, the constant force rotating device includes a second rotation transmitting ring, a first rotation transmitting ring, a coil spring, a bearing, a pin, and a sleeve; the second rotation transfer ring, the first rotation transfer ring, the spiral spring and the bearing are sequentially sleeved on the ejector rod, the bearing is farthest away from the connecting rod, the second rotation transfer ring and the bearing are fixedly connected with the ejector rod, the sleeve is sleeved on the peripheries of the first rotation transfer ring, the spiral spring and the bearing and fixedly connected with the bearing, and a pin hole is formed in the outer surface of the first rotation transfer ring; the inner surface of the sleeve is provided with a sliding groove, one end of the pin is arranged in the pin hole, and the other end of the pin is arranged in the sliding groove and can slide in the sliding groove.
Furthermore, a first sawtooth-shaped protrusion is arranged on the end surface of the first rotation transmission ring; and the end surface of the second rotation transmission ring is provided with second sawtooth-shaped protrusions, and the first sawtooth-shaped protrusions are in contact with the second sawtooth-shaped protrusions.
Furthermore, a first ratchet group is arranged on the end surface of the first rotation transmission ring; and a second ratchet group is arranged on the end surface of the second rotation transmission ring, and the first ratchet group is in contact with the second ratchet group.
Furthermore, the first ratchet group and the second ratchet group are arranged in a mirror symmetry mode.
Further, the outer surface of the sleeve is provided with anti-skid protrusions.
Compared with the prior art, the utility model has the beneficial effects that: one end of the push rod, which is far away from the connecting rod, is connected with a constant force rotating device. The constant-force rotating device applies constant torque force to the ejector rod, when the optical device positioning clamp clamps the optical device, the optical device applies reaction force to the ejector rod, the reaction force is positively correlated with the screwing degree of the ejector rod, and the tighter the rotating degree of the ejector rod, the larger the reaction force is until the ejector rod clamps the optical device. Because the constant force rotating device applies the torque force to the ejector rod and the reaction force is the same, the ejector rod rotates to a proper position and does not rotate any more, and the optical device is prevented from being broken by the ejector rod.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a torsion control apparatus of an optical device positioning fixture according to an embodiment of the present invention;
FIG. 2 is an exploded view of the torsion control apparatus of the optical device positioning fixture of FIG. 1;
fig. 3 is a schematic view of the sleeve of fig. 2.
In the figure: 1. a connecting rod; 2. pushing the push rod; 3. a constant force rotating device; 31. a sleeve; 32. a chute; 33. a second rotation transmitting ring; 34. a first rotation transmitting ring; 35. a pin; 36. a coil spring; 37. a bearing; 331. a second serration; 341. first serrations.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a torsion control device of an optical device positioning clamp according to a preferred embodiment of the present invention includes a button pillar, where the button pillar includes a push rod 2 and a connecting rod 1, and one end of the push rod 2 away from the connecting rod 1 is connected to a constant force rotating device 3. Constant force rotary device 3 exerts invariable torsion to ejector pin 2, and when optical device positioning fixture pressed from both sides tight optical device, the optical device exerted counter force to ejector pin 2, this counter force is positive correlation with ejector pin 2 degree of screwing, and the rotation degree of ejector pin 2 is tighter, and the counter force is bigger, presss from both sides garrulous optical device until ejector pin 2. Because the constant force rotating device 3 applies the same torsion force as the reaction force to the ejector rod 2, the ejector rod 2 rotates to a proper position and does not rotate any more, and the optical device is prevented from being crushed by the ejector rod 2.
Specifically, the constant-force rotating device 3 includes a second rotation transmitting ring 33, a first rotation transmitting ring 34, a coil spring 36, a bearing 37, a pin 35, and a sleeve 31; the second rotation transmission ring 33, the first rotation transmission ring 34, the spiral spring 36 and the bearing 37 are sequentially sleeved on the ejector rod 2, the bearing 37 is farthest away from the connecting rod 1, the second rotation transmission ring 33 and the bearing 37 are fixedly connected with the ejector rod 2, the sleeve 31 is sleeved on the peripheries of the first rotation transmission ring 34, the spiral spring 36 and the bearing 37, the sleeve 31 is fixedly connected with the bearing 37, and a pin hole is formed in the outer surface of the first rotation transmission ring 34; the sleeve 31 is provided with a slide groove 32 on the inner surface thereof, one end of a pin 35 is disposed in the pin hole, and the other end of the pin 35 is disposed in the slide groove 32 and is slidable in the slide groove 32.
Further, a first serration 341 is provided on an end surface of the first rotation transmission ring 34; the second rotation transmission ring 33 has second serrations 331 formed on an end surface thereof, and the first serrations 341 are in contact with the second serrations 331. Friction is formed between the end surfaces of the first rotation transmission ring 34 and the second rotation transmission ring 33, and transmission between the sleeve 31 and the ejector pin 2 is achieved by this friction force. As the friction force increases, the spring is compressed and the first rotation transmission ring 34 moves toward the bearing 37. The first rotation transmission ring 34 and the second rotation transmission ring 33 slide on each other on the end surfaces thereof, and the first serrations 341 and the second serrations 331 are displaced from each other, so that the maximum frictional force is maximized.
Further, a first ratchet group is provided on an end surface of the first rotation transmission ring 34; a second ratchet group is arranged on the end surface of the second rotation transmission ring 33, and the first ratchet group is in contact with the second ratchet group. Furthermore, the first ratchet group and the second ratchet group are arranged in a mirror symmetry mode. The two ratchet groups are used in cooperation with each other, after the coil spring 36 is compressed and the first rotation transmission ring 34 moves towards the bearing 37, the two ratchet groups are staggered by an angle of one ratchet, the coil spring 36 is expanded to push the first rotation transmission ring 34 to move towards the second rotation transmission ring 33, and the first ratchet group is in close contact with the second ratchet group again. In this process, the first rotation transmission ring 34 and the second rotation transmission ring 33 collide and vibrate to generate a rattling sound, which prompts the operator that the sleeve 31 should be stopped from rotating.
Further, the outer surface of the sleeve 31 is provided with anti-slip protrusions. The sleeve 31 is convenient to operate manually, and slipping between the hand and the sleeve 31 is avoided.
In summary, the application method of the torsion control device of the optical device positioning fixture disclosed by the utility model comprises the following steps: the coil spring 36 pushes the first rotation transmission ring 34 into close contact with the second rotation transmission ring 33, and there is a frictional force between the first rotation transmission ring 34 and the second rotation transmission ring 33. The forward rotation sleeve 31 rotates the first rotation transmission ring 34 by the driving action of the pin 35, and the second rotation transmission ring 33 rotates due to the friction between the first rotation transmission ring 34 and the second rotation transmission ring 33. Since the second rotation transmission ring 33 is fixedly connected to the ejector pin 2, the ejector pin 2 rotates along with the second rotation transmission ring, and the optical device positioning jig clamps the optical device. When the clamping force of the optical device positioning clamp on the optical device rises to a preset value, the optical device generates a reverse acting force on the ejector rod 2 to force the ejector rod 2 to stop rotating continuously, the second rotation transmission ring 33 stops rotating, the first rotation transmission ring 34 continues rotating and moves for a certain distance towards the bearing 37 direction, and the first rotation transmission ring 34 and the second rotation transmission ring 33 are not in close contact with each other any more and slide relatively. The elastic force of the spring is adjusted, so that the friction force between the first rotation transmission ring 34 and the second rotation transmission ring 33 can be changed, and finally, the clamping degree of the optical device positioning clamp on the optical device can be adjusted.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. A torsion control device of an optical device positioning clamp comprises a button column and is characterized in that the button column comprises a push rod and a connecting rod which are connected, one end of the push rod, far away from the connecting rod, is connected with a constant force rotating device, and the constant force rotating device comprises a second rotating transmission ring, a first rotating transmission ring, a spiral spring, a bearing, a pin and a sleeve;
the second rotation transfer ring, the first rotation transfer ring, the spiral spring and the bearing are sequentially sleeved on the ejector rod, the bearing is farthest away from the connecting rod, the second rotation transfer ring and the bearing are fixedly connected with the ejector rod, the sleeve is sleeved on the peripheries of the first rotation transfer ring, the spiral spring and the bearing and fixedly connected with the bearing, and a pin hole is formed in the outer surface of the first rotation transfer ring; the inner surface of the sleeve is provided with a sliding groove, one end of the pin is arranged in the pin hole, and the other end of the pin is arranged in the sliding groove and can slide in the sliding groove.
2. The torsion control apparatus for an optical device positioning jig according to claim 1, wherein a first serration is provided on an end surface of the first rotation transmission ring; and the end surface of the second rotation transmission ring is provided with second sawtooth-shaped protrusions, and the first sawtooth-shaped protrusions are in contact with the second sawtooth-shaped protrusions.
3. The torsion control apparatus of an optical device positioning jig according to claim 1, wherein a first ratchet group is provided on an end surface of the first rotation transmitting ring; and a second ratchet group is arranged on the end surface of the second rotation transmission ring, and the first ratchet group is in contact with the second ratchet group.
4. The torsion control apparatus of claim 3, wherein the first set of ratchet teeth and the second set of ratchet teeth are mirror symmetric.
5. The torsion control apparatus of an optical device positioning fixture according to claim 1, wherein the sleeve outer surface is provided with an anti-slip protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121519151.XU CN216803084U (en) | 2021-07-06 | 2021-07-06 | Torsion control device of optical device positioning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121519151.XU CN216803084U (en) | 2021-07-06 | 2021-07-06 | Torsion control device of optical device positioning clamp |
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| Publication Number | Publication Date |
|---|---|
| CN216803084U true CN216803084U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121519151.XU Active CN216803084U (en) | 2021-07-06 | 2021-07-06 | Torsion control device of optical device positioning clamp |
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| CN (1) | CN216803084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116513573A (en) * | 2023-04-19 | 2023-08-01 | 淮阴工学院 | A portable intelligent automatic mobile phone film sticking device |
-
2021
- 2021-07-06 CN CN202121519151.XU patent/CN216803084U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116513573A (en) * | 2023-04-19 | 2023-08-01 | 淮阴工学院 | A portable intelligent automatic mobile phone film sticking device |
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