A clamping fixture and a lens barrel oiling kit

Abstract

This invention discloses a clamping fixture and an lens barrel oiling kit. The clamping fixture, used to clamp a lens barrel, includes a mounting base, a turntable, a clamping assembly, and a first transmission structure. The turntable is rotatably mounted on the mounting base. The clamping assembly includes an annular mounting portion and multiple clamping members. The annular mounting portion and the turntable have a relative rotational stroke and a stroke following the rotation. The multiple clamping members are mounted on the inner side of the annular mounting portion via elastic members. The multiple clamping members have a clamping position located near the center of the annular mounting portion and a releasing position located away from the center of the annular mounting portion. Each clamping member can be reset to the clamping position by a corresponding elastic member to clamp the lens barrel. The first transmission structure is disposed between the turntable and the multiple clamping members to convert the relative rotation of the turntable and the annular mounting portion into the movement of the clamping members to the releasing position during the relative rotational stroke. This invention aims to provide a lens barrel clamping fixture that facilitates lens barrel oiling.

Description

Technical Field

[0001] This invention relates to the field of lens barrel coating technology, specifically to a clamping fixture and a lens barrel coating kit. Background Technology

[0002] The current method of applying oil to the lens barrel involves employees holding the lens barrel and using a brush to apply the oil. This is obviously inconvenient, easily causes employees' fingers to get dirty, and results in uneven oil application, making it impossible to guarantee the quality of the oil application and affecting the subsequent assembly of the lens barrel. Summary of the Invention

[0003] The main objective of this invention is to provide a clamping fixture and a lens barrel oiling kit, aiming to provide a lens barrel clamping fixture that facilitates lens barrel oiling.

[0004] To achieve the above objectives, the present invention provides a clamping fixture for clamping a lens barrel, wherein the clamping fixture comprises:

[0005] Mounting base;

[0006] The turntable is rotatably mounted on the mounting base;

[0007] A clamping assembly includes an annular mounting portion and a plurality of clamping members. The annular mounting portion is mounted to and coaxially rotatable with the turntable. The annular mounting portion and the turntable have a relative rotational stroke and a follow-rotation stroke that limits the relative rotation. The plurality of clamping members are mounted on the inner side of the annular mounting portion by elastic members and are radially movably arranged along the annular mounting portion. The plurality of clamping members have a clamping position located near the center of the annular mounting portion and a releasing position located away from the center of the annular mounting portion. Each clamping member can be reset to the clamping position by the corresponding elastic member to clamp the lens barrel; and...

[0008] A first transmission structure is disposed between the turntable and the plurality of clamping members, for converting the relative rotation of the turntable and the annular mounting portion into the movement of the clamping members to the release position during the relative rotational stroke of the turntable and the annular mounting portion.

[0009] Optionally, the first transmission structure includes a positioning notch formed on the outer periphery of the turntable and a transmission member disposed on the clamping member. The outer side of one end of the transmission member abuts against the outer periphery of the turntable, and the other end is connected to the clamping member, so that when the transmission member extends into the positioning notch, the clamping member is located in the clamping position, and when the transmission member abuts against the periphery of the turntable, the clamping member is located in the loosening position.

[0010] Optionally, the clamping fixture further includes a stop structure installed between the mounting base and the annular mounting portion. The stop structure has a stop state that restricts the rotation of the annular mounting portion and a avoidance state that avoids the rotation of the annular mounting portion, so that the turntable can rotate relative to the annular mounting portion, causing the transmission member to disengage from the positioning notch.

[0011] Optionally, the stop structure includes an elastic stop member disposed on the mounting base and a stop groove formed on the periphery of the annular mounting portion, and at least one of the stop groove and the elastic stop member is provided with a guide slope, so that during the simultaneous rotational stroke of the annular mounting portion and the turntable, the elastic stop member located in the stop groove can disengage from the stop groove along the guide slope. During the relative rotational stroke of the annular mounting portion and the turntable, the elastic stop member in the stop groove stops the annular mounting portion, causing the transmission member to disengage from the positioning notch.

[0012] Optionally, the clamping fixture further includes a second transmission structure disposed between the turntable and the annular mounting portion. The second transmission structure includes two pushing members disposed on the turntable and the annular mounting portion, such that when the turntable and the annular mounting portion are in the same rotational stroke, the two pushing members can push laterally, and when the annular mounting portion and the turntable are in the relative rotational stroke, the two pushing members separate from each other.

[0013] Optionally, an adjusting member is provided between the two pushing members, the adjusting member being used to adjust the distance between the two pushing members when they push laterally.

[0014] Optionally, the adjusting member includes a screw threaded to one of the abutting members.

[0015] Optionally, the clamping assembly further includes a cover plate, which is mounted on the annular mounting portion and coaxially arranged with the turntable. A connection structure is provided between the cover plate and the turntable so that the clamping assembly can be rotatably mounted on the turntable.

[0016] Optionally, the connection structure includes an arc-shaped guide groove formed on one of the cover plate and the turntable, and a guide post installed on the other of the cover plate and the turntable, the guide post extending into the arc-shaped guide groove.

[0017] Optionally, the cover plate is embedded inside the annular mounting portion, and the cover plate has a slot extending radially therein, and the clamping member and the elastic member are installed in the slot.

[0018] Optionally, a rotating shaft is provided through the mounting base, the turntable is installed at one end of the rotating shaft, and a manual operation part is provided at the other end of the rotating shaft.

[0019] Optionally, the clamping fixture further includes a base, the mounting base is mounted on the base, and an auxiliary support frame is also provided on the base. The auxiliary support frame is located on the side of the clamping assembly facing away from the mounting base, and is used to assist in supporting the lens barrel clamped by the clamping assembly.

[0020] Optionally, the clamping fixture further includes a base, and a slide rail extending along the axial direction of the turntable is provided between the base and the mounting seat, so that the mounting seat can be slidably mounted on the base.

[0021] Optionally, a positioning structure is further provided between the base and the mounting seat.

[0022] Optionally, the positioning structure includes a positioning pin hole formed in the mounting base and a positioning pin movably mounted on the base, the positioning pin extending into the positioning pin hole to position the mounting base.

[0023] Optionally, the mounting base is provided with an operating handle, which is used to drive the mounting base to slide on the base.

[0024] This invention provides a lens barrel coating kit, comprising a clamping fixture for clamping the lens barrel. The clamping fixture includes a mounting base, a turntable, a clamping assembly, and a first transmission structure. The turntable is rotatably mounted on the mounting base. The clamping assembly includes an annular mounting portion and multiple clamping members. The annular mounting portion is mounted corresponding to the turntable and can rotate coaxially with the turntable. The annular mounting portion has a relative rotational stroke with the turntable and a follow-rotation stroke that limits the relative rotation. The multiple clamping members are mounted on the annular mounting portion via elastic members. The plurality of clamping members are arranged on the inner side of the mounting portion and movably along the radial direction of the annular mounting portion. They have a clamping position near the center of the annular mounting portion and a release position away from the center of the annular mounting portion. Each clamping member can be reset to the clamping position by the corresponding elastic member to clamp the lens barrel. The first transmission structure is arranged between the turntable and the plurality of clamping members to convert the relative rotation of the turntable and the annular mounting portion into the movement of the clamping members to the release position during the relative rotation stroke of the turntable and the annular mounting portion.

[0025] In the technical solution of the present invention, since it is necessary to apply oil to the outer circumference of the cylindrical lens barrel, a turntable is provided on the mounting base for easy operation. The rotation of the turntable drives the lens barrel to rotate, so that there is no need to rotate the oiling brush around the lens barrel when applying oil, making the operation simple. Specifically, a clamping assembly is provided corresponding to the turntable for clamping the lens barrel, eliminating the need for manual holding by the employee. The clamping assembly includes the annular mounting portion and multiple clamping members. The annular mounting portion is mounted to the turntable and can rotate with the turntable, or it can rotate independently of the turntable, so that there is relative rotation between the turntable and the annular mounting portion when the turntable rotates. The clamping members are mounted on the annular mounting portion, and an elastic element is provided between the clamping member and the inner side of the annular mounting portion. The elastic element is configured to drive the clamping member to return to the clamping position to clamp the lens barrel. Thus, when the elastic element drives the clamping member to the clamping position to clamp the lens barrel, and the annular mounting portion rotates with the turntable, the employee only needs to operate the turntable to rotate and place the coating brush around the lens barrel to complete the coating work along the circumference of the lens barrel. There is no need to manually hold the lens barrel and adjust the coating brush position, making the operation simple. Based on this, to facilitate the switching of the clamping member from the clamping position to the detached position, so as to remove the coated lens barrel and switch to a new lens barrel to be coated for continuous operation, this application also proposes to set the first transmission structure between the turntable and the clamping member. This first transmission structure, when the turntable rotates relative to the annular mounting part, converts the relative rotation of the turntable and the annular mounting part into the movement of the clamping member from the clamping position to the detached position, thereby releasing the clamping member. After the lens barrel is replaced, the elastic element can drive the clamping member back to the clamping position to clamp the lens barrel, and the coating operation can continue for another lens barrel. The overall structure is simple and practical, meets the usage requirements, and has good performance. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a perspective view of an embodiment of the clamping fixture provided by the present invention;

[0028] Figure 2 for Figure 1 A three-dimensional schematic diagram of some of the structures in the diagram;

[0029] Figure 3 for Figure 1 Another three-dimensional schematic diagram of the clamping fixture.

[0030] Explanation of icon numbers:

[0031]

[0032]

[0033] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0037] The current method of applying oil to the lens barrel involves employees holding the lens barrel and using a brush to apply the oil. This is obviously inconvenient, easily causes employees' fingers to get dirty, and results in uneven oil application, making it impossible to guarantee the quality of the oil application and affecting the subsequent assembly of the lens barrel.

[0038] In view of this, the present invention provides a clamping fixture. Figures 1 to 3The following is an embodiment of the clamping fixture provided by the present invention, and will be described in conjunction with the specific drawings.

[0039] Please see Figures 1 to 3 The clamping fixture 100 is used to clamp the lens barrel. The clamping fixture 100 includes a mounting base 1, a turntable 2, a clamping assembly 3, and a first transmission structure 4. The turntable 2 is rotatably mounted on the mounting base 1. The clamping assembly 3 includes an annular mounting portion 31 and multiple clamping members 32. The annular mounting portion 31 is mounted to the turntable 2 and can rotate coaxially with the turntable 2. The annular mounting portion 31 has a relative rotational stroke with the turntable 2 and a follow-rotational stroke that limits the relative rotation. The multiple clamping members 32 are mounted on the inner side of the annular mounting portion 31 via elastic members 33 and extend along the annular... The annular mounting portion 31 is radially movable, and the plurality of clamping members 32 have a clamping position located near the center of the annular mounting portion 31 and a release position located away from the center of the annular mounting portion 31. Each clamping member 32 can be reset to the clamping position by the corresponding elastic member 33 to clamp the lens barrel; the first transmission structure 4 is disposed between the turntable 2 and the plurality of clamping members 32, and is used to convert the relative rotation of the turntable 2 and the annular mounting portion 31 into the movement of the clamping member 32 to the release position during the relative rotation stroke of the turntable 2 and the annular mounting portion 31.

[0040] In the technical solution of this invention, since it is necessary to apply oil to the outer circumference of the cylindrical lens barrel, a turntable 2 is provided on the mounting base 1 for ease of operation. The rotation of the turntable 2 drives the lens barrel to rotate, thus eliminating the need for an oiling brush to rotate around the lens barrel during oiling, simplifying the operation. Specifically, a clamping assembly 3 is provided corresponding to the turntable 2 for clamping the lens barrel, eliminating the need for manual holding by the operator. The clamping assembly 3 includes the annular mounting portion 31 and multiple clamping members 32. The annular mounting portion 31 is mounted corresponding to the turntable 2 and can rotate with the turntable 2, or it can rotate independently of the turntable 2, allowing relative rotation between the turntable 2 and the annular mounting portion 31 when the turntable 2 rotates. The clamping members 32 are mounted on the annular mounting portion 31 and are clamped to the annular mounting portion 31. The elastic element 33 is provided between the inner sides of the mounting part 31. The elastic element 33 is configured to drive the clamping member 32 to return to the clamping position to clamp the lens barrel. Thus, when the elastic element 33 drives the clamping member 32 to the clamping position to clamp the lens barrel, and the annular mounting part 31 rotates with the turntable 2, the employee only needs to operate the turntable 2 to rotate and place the oiling brush around the lens barrel to complete the oiling work along the circumference of the lens barrel. There is no need to manually hold the lens barrel and adjust the oiling brush position, making the operation simple. Based on this, to facilitate the switching of the clamping member 32 from the clamping position to the detached position, so as to remove the coated lens barrel and switch to a new lens barrel to be coated for continuous operation, this application also proposes to set the first transmission structure 4 between the turntable 2 and the clamping member 32. When the turntable 2 and the annular mounting part 31 rotate relative to each other, the relative rotation of the turntable 2 and the annular mounting part 31 is converted into the movement of the clamping member 32 from the clamping position to the detached position, so that the clamping member 32 is released. After the lens barrel is replaced, the elastic member 33 can drive the clamping member 32 back to the clamping position to clamp the lens barrel, and continue the coating operation for another lens barrel. The overall structure is simple and practical, meets the usage requirements, and has good performance.

[0041] Specifically, the first transmission structure 4 includes a positioning notch 21 formed on the outer periphery of the turntable 2 and a transmission member 41 disposed on the clamping member 32. The outer side of one end of the transmission member 41 abuts against the outer periphery of the turntable 2, and the other end is connected to the clamping member 32, so that when the transmission member 41 extends into the positioning notch 21, the clamping member 32 is located in the clamping position, and when the transmission member 41 abuts against the periphery of the turntable 2, the clamping member 32 is located in the loosening position. The function of the first transmission structure 4 is to convert the relative rotation between the annular mounting part 31 and the turntable 2 into the movement of the clamping member 32 to the release position. Its structure can be of various forms, as long as it can achieve the above function. For example, the first transmission structure 4 can be set as a connecting rod between the clamping member 32 and the turntable 2. When the clamping member 32 is in the clamping position, the connecting rod forms a certain angle with the line connecting the clamping member 32 to the center of the turntable 2, so that during the relative rotation stroke between the turntable 2 and the annular mounting part 31, the connecting rod tends to be closer to the line connecting the clamping member 32 to the center of the turntable 2, so as to push the clamping member 32 away from the center of the turntable 2, thereby causing the clamping member 32 to move from the clamping position to the release position, thus satisfying the functional requirements of the first transmission structure 4. In this embodiment, the first transmission structure 4 is configured as the positioning notch 21 located on the outer periphery of the turntable 2 and the transmission member 41 located on the clamping member 32. One end of the transmission member 41 abuts against the outer periphery of the turntable 2, and the other end is fixedly connected to the clamping member 32. When the transmission member 41 abuts against the outer periphery of the turntable 2, the clamping member 32 is in the loose position. When the transmission member 41 extends into the positioning notch 21, the clamping member 32 will move from the loose position to the clamping position. It can be understood that when the turntable 2 and the annular mounting part 31 rotate relative to each other, the transmission member 41 will slide out along the edge of the positioning notch 21 and abut against the outer periphery of the turntable 2, realizing the switching of the clamping member 32 from the clamping position to the loose position, meeting the functional requirements, and the structure is simple, easy to set, and has good effect.

[0042] Furthermore, the clamping fixture 100 also includes a stop structure 5 installed between the mounting base 1 and the annular mounting portion 31. The stop structure 5 has a stop state that restricts the rotation of the annular mounting portion 31 and a avoidance state that avoids the rotation of the annular mounting portion 31, so that the turntable 2 can rotate relative to the annular mounting portion 31, causing the transmission member 41 to disengage from the positioning notch 21. When the transmission member 41 is located within the positioning notch 21, the clamping member 32 is held by the elastic member 33, so that the transmission member 41 is pressed against the positioning notch 21. When the turntable 2 and the annular mounting portion 31 are about to rotate relative to each other, the transmission member 41 may laterally abut against the positioning notch 21, thereby causing the annular mounting portion 31 to rotate synchronously with the turntable 2, and thus cannot disengage normally from the positioning notch 21. This prevents the clamping member 32 from moving from the clamping position to the loosening position, resulting in functional abnormality. To avoid the above-mentioned problems in this embodiment, a stop structure 5 is also provided between the mounting base 1 and the annular mounting part 31. When the turntable 2 needs to rotate relative to the annular mounting part 31, the stop structure 5 is provided to prevent the annular mounting part 31 from rotating. At this time, the turntable 2 can rotate relative to the annular mounting part 31 so as to drive the transmission member 41 to disengage from the positioning notch 21, thereby allowing the clamping member 32 to move from the clamping position to the disengaging position, achieving the required function and meeting the requirements.

[0043] Furthermore, the stop structure 5 includes an elastic stop member 51 disposed on the mounting base 1 and a stop groove 311 formed on the periphery of the annular mounting portion 31. At least one of the stop groove 311 and the elastic stop member 51 is provided with a guide slope, so that during the rotational stroke of the annular mounting portion 31 and the turntable 2, the elastic stop member 51 located in the stop groove 311 can disengage from the stop groove 311 along the guide slope. During the rotational stroke of the relative rotation of the annular mounting portion 31 and the turntable 2, the elastic stop member 51 in the stop groove 311 stops the annular mounting portion 31, causing the transmission member 41 to disengage from the positioning notch 21. The function of the stop structure 5 is to stop the annular mounting part 31 to prevent it from rotating. Therefore, the specific structural form of the stop structure 5 can also be various, including but not limited to being a controllable movable part. When the stop is needed, the movable part is controlled to the stop position to stop the annular mounting part 31. When it is not needed, it is controlled to move away from the annular mounting part 31 to avoid affecting the rotation of the annular mounting part 31 with the turntable 2. However, this setting method obviously requires additional control steps, which is more cumbersome.In this embodiment, considering that the clamping fixture 100 is mainly used to clamp the lens barrel and rotates to facilitate circumferential oiling of the lens barrel, the clamping fixture 100 can rotate the lens barrel in both directions to satisfy the oiling operation. Based on this, the rotation of the turntable 2 in one direction is configured to drive the annular mounting part 31 to rotate, and the rotation of the turntable 2 in the other direction is configured to disengage from the annular mounting part 31, so that the turntable 2 can rotate relative to the annular mounting part 31, thereby realizing the release of the clamping member 3 achieved by the first transmission structure 4. 2. Clamping Function: With this configuration, the stop structure 5 can be set to stop in one direction and allow disengagement in another. For example, in this embodiment, a stop groove 311 is provided on the annular mounting portion 31, and an elastic stop member 51 is provided on the mounting base 1. In one direction, the groove wall of the stop groove 311 abuts against the elastic stop member 51 to restrict the rotation of the annular mounting portion 31. In the other direction, a guide slope is provided between the stop groove 311 and the elastic stop member 51 so that the elastic stop member 51 can move along... The guide ramp moves out of the stop groove 311. During this process, the elastic stop 51 is compressed, storing energy for subsequent re-entry into the stop groove 311 to fulfill its stopping function. Thus, no additional operation steps are required. Simply control the turntable 2 to rotate in the opposite direction after normally driving the annular mounting part 31 to complete the lens barrel oiling. This allows the elastic stop 51 to stop within the stop groove 311, enabling the turntable 2 to rotate relative to the annular mounting part 31. This causes the transmission member 41 to disengage from the positioning notch 21, thereby allowing the clamping member 32 to move from the clamping... The lens barrel is unlocked by moving the holding position to the loosened position. After replacing the lens barrel, simply reverse the drive of the turntable 2 again to make it rotate relative to the annular mounting part 31, causing the transmission member 41 to re-enter the positioning notch 21, thereby clamping the lens barrel with the holding member 32. Then, continue driving the turntable 2 to move the annular mounting part 31. At this time, the elastic stop member 51 will also disengage from the stop groove 311 along the guide slope, thus avoiding obstruction to the rotation of the annular mounting part 31. The entire process only requires controlling the rotation of the turntable 2 to realize the lens barrel oiling rotation and replacement operation. The drive process is cleverly designed, simple to operate, and practical.

[0044] In addition, the clamping fixture 100 also includes a second transmission structure 6 disposed between the turntable 2 and the annular mounting portion 31. The second transmission structure 6 includes two pushing members 61 disposed on the turntable 2 and the annular mounting portion 31, so that when the turntable 2 and the annular mounting portion 31 are in the same rotation stroke, the two pushing members 61 can push laterally, and when the annular mounting portion 31 and the turntable 2 are in the relative rotation stroke, the two pushing members 61 separate from each other. There are various ways to enable the turntable 2 and the annular mounting part 31 to rotate synchronously, including but not limited to pin fixing, clamping fixing, etc. However, considering the usage scenario proposed in this application, and the operation of the turntable 2 driving the annular mounting part 31 to rotate in one direction and disengaging from the annular mounting part 31 in another direction to achieve relative rotation to unlock the clamping member 32, in this embodiment, a second transmission structure 6 is provided between the turntable 2 and the annular mounting part 31, so that when the turntable 2 rotates in one direction, it can drive the annular mounting part 31 to rotate through the second transmission structure 6, and when rotating in another direction, the turntable 2 can disengage from the annular mounting part 31 and engage with the annular mounting part 31. The mounting part 31 rotates relative to each other to achieve the above requirements. Based on this, in this embodiment, the second transmission structure 6 is further configured as two pushing members 61 located on the turntable 2 and the annular mounting part 31, so that when the turntable 2 rotates in one direction, the two pushing members 61 can push laterally, thereby causing the turntable 2 to drive the annular mounting part 31 to rotate. When the turntable 2 rotates in another direction, the two mutually abutting pushing members 61 move away from each other, so that the rotation of the turntable 2 no longer drives the annular mounting part 31 to rotate, so that the turntable 2 can rotate relative to the annular mounting part 31, satisfying the above-mentioned unlocking operation of the clamping member 32. The structure is simple, the cost is low, and the effect is good.

[0045] Furthermore, an adjusting member is provided between the two pushing members 61, which is used to adjust the distance between the two pushing members 61 when they push laterally. This ensures that when the transmission member 41 extends into the positioning notch 21, the two pushing members 61 are in lateral contact, so that the turntable 2 is driven by the second transmission structure 6 to rotate the annular mounting part 31. This prevents the transmission member 41 from extending into the positioning notch 21 along one side and then dislodging from the other side, affecting normal use.

[0046] Specifically, the adjusting member includes a screw 62 screwed to one of the pushing members 61. By adjusting the distance between the two pushing members 61 in the pushing state, the timing of the two pushing members 61 pushing through the adjusting member relative to the order in which the transmission member 41 enters the positioning notch 21 can be adjusted. Therefore, the adjusting member is used to adjust the distance between the two pushing members 61 in the pushing state. In this embodiment, the adjusting member is the screw 62, which is threaded to one of the pushing members 61 and extends between the two pushing members 61. By adjusting the size of the screw 62 extending out of the pushing member 61, the distance between the two pushing members 61 in the pushing state can be adjusted, thereby adjusting the timing of the two pushing members 61 pushing and the timing of the transmission member 41 entering the positioning notch 21, keeping them synchronized, and avoiding the problem of the transmission member 41 coming out from the other side of the positioning notch 21. The structure is simple, the cost is low, and the design is ingenious.

[0047] In addition, the clamping assembly 3 also includes a cover plate 34, which is installed on the annular mounting part 31 and is coaxially arranged with the turntable 2. A connection structure is provided between the cover plate 34 and the turntable 2 so that the clamping assembly 3 can be rotatably installed on the turntable 2. The installation method of the annular mounting part 31 is not limited, as long as it is coaxially arranged with the turntable 2 and can rotate synchronously with or relative to the turntable 2. It can be rotatably mounted on the mounting base 1 or rotatably mounted on the turntable 2. In this embodiment, the annular mounting part 31 is rotatably mounted on the turntable 2. Specifically, the clamping assembly 3 also includes the cover plate 34. The cover plate 34 and the turntable 2 are provided with the connecting structure so that the cover plate 34 and the annular mounting part 31 are fixedly connected. The cover plate 34 and the turntable 2 are connected and supported by the connecting structure so that the clamping assembly 3 can be rotatably mounted on the turntable 2. With this configuration, the connecting structure is set at the position where the cover plate 34 covers the turntable 2, and the structure is simple and easy to set.

[0048] Specifically, the connecting structure includes an arc-shaped guide groove 341 formed on one of the cover plate 34 and the turntable 2, and a guide post 22 installed on the other of the cover plate 34 and the turntable 2, the guide post 22 extending into the arc-shaped guide groove 341. The specific arrangement of the connecting structure can be varied, including, but not limited to, a rotatable shaft 7 set at the center of the turntable 2, with the shaft 7 fixedly connected to the cover plate 34, allowing the cover plate 34 to rotate relative to the turntable 2 to meet usage requirements. In this embodiment, the arc-shaped guide groove 341 and the guide post 22 are respectively provided between the cover plate 34 and the turntable 2. The arc-shaped guide groove 341 is arranged with the center of the turntable 2 as its center, so that when the guide post 22 moves within the arc-shaped guide groove 341, the turntable 2 rotates relative to the annular mounting portion 31, meeting the installation and usage requirements.

[0049] Furthermore, the cover plate 34 is embedded inside the annular mounting portion 31, and the cover plate 34 has a slot 342 extending radially therefrom. The clamping member 32 and the elastic member 33 are installed in the slot 342. To ensure the stability of the clamping member 32 moving radially along the turntable 2, in this embodiment, the cover plate 34 is set to be embedded in the annular mounting portion 31, and multiple slots 342 extending radially along the turntable 2 are provided on the cover plate 34. This allows the clamping member 32 to move along the slot 342 when the clamping member 32 and the elastic member 33 are installed in the slot 342, thereby maintaining its radial movement along the turntable 2 and thus maintaining stability. In addition, to prevent the clamping member 32 from moving excessively, a limiting groove is also provided at the bottom of the slot 342. The transmission member 41 in the first transmission structure 4 extends into the limiting groove to limit the travel of the clamping member 32 toward or away from the center of the turntable 2.

[0050] Furthermore, a rotating shaft 7 is provided through the mounting base 1, and the turntable 2 is mounted on one end of the rotating shaft 7. A manual operating part 71 is provided at the other end of the rotating shaft 7. The turntable 2 can be electrically controlled, that is, a rotation drive device is provided to drive the turntable 2 to rotate, or it can be manually controlled, that is, the rotating shaft 7 is provided through the mounting base 1, and the manual operating part 71 is provided at the other end of the rotating shaft 7. The user operates the manual operating part 71 to operate the clamping fixture 100 for normal use. In this embodiment, the manual operating structure is mainly adopted, that is, the rotating shaft 7 is provided through the mounting base 1, and the turntable 2 located on both sides of the mounting base 1 and the manual operating part 71 are connected through the rotating shaft 7, so that the rotating shaft 7 is driven to rotate through the manual operating part 71, thereby driving the turntable 2 to rotate. The structure is simple and easy to operate.

[0051] In addition, the clamping fixture 100 also includes a base 8, on which the mounting base 1 is mounted. An auxiliary support frame 81 is also provided on the base 8. The auxiliary support frame 81 is located on the side of the clamping assembly 3 facing away from the mounting base 1, and is used to assist in supporting the lens barrel clamped by the clamping assembly 3. Existing lens barrels vary in size. When the lens barrel is too long, clamping only one end of the lens barrel by the clamping member 32 cannot guarantee clamping stability. Therefore, this application also provides the auxiliary support frame 81 on one side of the mounting base 1 to support the lens barrel and improve the stability of the clamping fixture 100.

[0052] In addition, the clamping fixture 100 also includes a base 8, and a slide rail 82 extending along the axial direction of the turntable 2 is provided between the base 8 and the mounting base 1, so that the mounting base 1 can be slidably mounted on the base 8. To meet usage requirements, the mounting base 1 is configured to be movable relative to the base 8, specifically, the slide rail 82 is provided between the base 8 and the mounting base 1, so that the mounting base 1 can drive the turntable 2 and the clamping assembly 3 to move along the axial direction of the turntable 2, thus meeting usage requirements. Specifically, a positioning structure 83 is also provided between the base 8 and the mounting base 1, so that the mounting base 1 can be positioned when it moves to the required position, thereby preventing the mounting base 1 from moving during normal operation and improving the stability of the clamping fixture 100. Specifically, the positioning structure 83 includes a positioning pin hole opened in the mounting base 1 and a positioning pin movably mounted on the base 8, the positioning pin extending into the positioning pin hole to position the mounting base 1. In addition, the mounting base 1 is provided with an operating handle 11, which is used to drive the mounting base 1 to slide on the base 8.

[0053] The present invention also proposes a lens barrel coating kit, which includes a clamping fixture 100, the specific structure of which is described in the above embodiments. Since the lens barrel coating kit described herein employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be elaborated further here.

[0054] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A clamping jig for clamping a lens barrel, characterized by comprising: include: Mounting base; The turntable is rotatably mounted on the mounting base; A clamping assembly includes an annular mounting portion and a plurality of clamping members. The annular mounting portion is mounted to and coaxially rotatable with the turntable. The annular mounting portion and the turntable have a relative rotational stroke and a follow-rotation stroke that limits the relative rotation. The plurality of clamping members are mounted on the inner side of the annular mounting portion by elastic members and are radially movably arranged along the annular mounting portion. The plurality of clamping members have a clamping position located near the center of the annular mounting portion and a releasing position located away from the center of the annular mounting portion. Each clamping member can be reset to the clamping position by the corresponding elastic member to clamp the lens barrel; and... A first transmission structure is disposed between the turntable and the plurality of clamping members, for converting the relative rotation of the turntable and the annular mounting portion into the movement of the clamping members to the release position during the relative rotational stroke of the turntable and the annular mounting portion.

2. The clamping fixture as described in claim 1, characterized in that, The first transmission structure includes a positioning notch formed on the outer periphery of the turntable and a transmission member disposed on the clamping member. The outer side of one end of the transmission member abuts against the outer periphery of the turntable, and the other end is connected to the clamping member, so that when the transmission member extends into the positioning notch, the clamping member is located in the clamping position, and when the transmission member abuts against the periphery of the turntable, the clamping member is located in the loosening position.

3. The clamping fixture as described in claim 2, characterized in that, The clamping fixture further includes a stop structure installed between the mounting base and the annular mounting portion. The stop structure has a stop state that restricts the rotation of the annular mounting portion and a avoidance state that avoids the rotation of the annular mounting portion, so that the turntable can rotate relative to the annular mounting portion, causing the transmission component to disengage from the positioning notch.

4. The clamping fixture as described in claim 3, characterized in that, The stop structure includes an elastic stop member disposed on the mounting base and a stop groove formed on the periphery of the annular mounting portion. At least one of the stop groove and the elastic stop member is provided with a guide slope, so that during the simultaneous rotation of the annular mounting portion and the turntable, the elastic stop member located in the stop groove can disengage from the stop groove along the guide slope. During the relative rotation of the annular mounting portion and the turntable, the elastic stop member in the stop groove stops the annular mounting portion, causing the transmission member to disengage from the positioning notch.

5. The clamping fixture as described in claim 1, characterized in that, The clamping fixture further includes a second transmission structure disposed between the turntable and the annular mounting portion. The second transmission structure includes two pushing members disposed on the turntable and the annular mounting portion, such that when the turntable and the annular mounting portion are in the same rotational stroke, the two pushing members can push laterally, and when the annular mounting portion and the turntable are in the relative rotational stroke, the two pushing members separate from each other.

6. The clamping fixture as described in claim 5, characterized in that, An adjusting member is provided between the two pushing members, and the adjusting member is used to adjust the distance between the two pushing members when they push laterally.

7. The clamping fixture as described in claim 6, characterized in that, The adjusting member includes a screw threaded to one of the pushing members.

8. The clamping fixture as described in claim 1, characterized in that, The clamping assembly further includes a cover plate, which is installed on the annular mounting portion and is coaxially arranged with the turntable. A connection structure is provided between the cover plate and the turntable so that the clamping assembly can be rotatably installed on the turntable.

9. The clamping fixture as described in claim 8, characterized in that, The connection structure includes an arc-shaped guide groove formed on one of the cover plate and the turntable, and a guide post installed on the other of the cover plate and the turntable, the guide post extending into the arc-shaped guide groove.

10. The clamping fixture as described in claim 8, characterized in that, The cover plate is embedded inside the annular mounting portion, and the cover plate has a slot extending radially therein, and the clamping member and the elastic member are installed in the slot.

11. The clamping fixture as described in claim 1, characterized in that, A rotating shaft is provided on the mounting base, the turntable is installed at one end of the rotating shaft, and a manual operation part is provided at the other end of the rotating shaft.

12. The clamping fixture as described in claim 1, characterized in that, The clamping fixture also includes a base, the mounting base is mounted on the base, and an auxiliary support frame is also provided on the base. The auxiliary support frame is located on the side of the clamping assembly facing away from the mounting base, and is used to assist in supporting the lens barrel clamped by the clamping assembly.

13. The clamping fixture as described in claim 1, characterized in that, The clamping fixture also includes a base, and a slide rail extending along the axial direction of the turntable is provided between the base and the mounting seat, so that the mounting seat can be slidably mounted on the base.

14. The clamping fixture as described in claim 13, characterized in that, A positioning structure is also provided between the base and the mounting seat.

15. The clamping fixture as described in claim 14, characterized in that, The positioning structure includes a positioning pin hole formed in the mounting base and a positioning pin movably mounted on the base, the positioning pin extending into the positioning pin hole to position the mounting base.

16. The clamping fixture as described in claim 13, characterized in that, The mounting base is provided with an operating handle, which is used to drive the mounting base to slide on the base.

17. A lens barrel oiling kit, characterized in that, Includes the clamping fixture as described in any one of claims 1-16.

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