Axis locking device for optical axis measuring equipment

Abstract

The present invention discloses an axis locking device for optical axis measuring equipment. The present invention relates to the field of optical measurement technology, and comprises a base, a bearing platform is rotatably sleeved on the central axis of the base, a bearing is fixedly connected between the bearing platform and the base, a gear ring is fixedly connected to the inner surface of the base, and a friction pad is slidably sleeved on the top surface of the base, a through hole is provided on the top surface of the bearing platform, a slide groove is provided on the inner surface of the through hole, and a first closed cavity is provided in the side wall of the slide groove. The present invention has the advantages that the measuring equipment can be fixed while the axis system is fixed, so that the fixing of the axis system and the fixing of the measuring equipment can work together without the need to be performed in sequence in steps, which not only shortens the measurement cycle, but also makes the installation of the optical axis measuring equipment simple, and the heavier the optical axis measuring equipment, the smaller the limiting friction force, so as to avoid the friction force damaging the axis system, and the lighter the optical axis measuring equipment, the larger the limiting friction force, so as to fully avoid the movement of the optical axis measuring equipment.

Description

Technical Field

[0001] The invention relates to the technical field of optical measurement, in particular to a shaft locking device for optical axis measuring equipment. Background Art

[0002] The basic principle of optical measurement equipment is to use various properties of light to detect the presence of objects and changes in surface conditions. In optical measurement, the measurement of the target's landing point often requires the equipment to have a staring function, that is, the equipment can be fixed at a fixed angle for measurement, so that the measurement results are more accurate; and the measurement process of optical axis measurement equipment usually involves the following steps: 1. Clean the surface of the optical component to ensure the quality of light transmission. This step is to reduce the impact of surface contamination on the measurement results, so as to obtain more accurate measurement data; 2. Install the measurement device: It is necessary to install measurement devices such as coaxial light source or polarization beam splitter. The installation of these devices This is to enable the subsequent measurement of the position and direction of the optical axis; 3. Adjust the measuring device: After installation, the coaxial light source or polarization beam splitter needs to be adjusted to align it with the optical system. This step is to ensure that the measuring device can accurately capture the transmission of light, so as to perform precise measurements; 4. Measure the position of the optical axis: Determine the position of the optical axis by measuring the convergence point of the reflected and refracted light. This step uses the law of light transmission to determine the specific position of the optical axis by measuring the position of the reflected and refracted light; 5. Measure the direction of the optical axis: Determine the direction of the optical axis by measuring the angle between the reflected and refracted light. This step is to complete the debugging and optimization of the entire optical system by analyzing the angular changes in light transmission to determine the direction of the optical axis.

[0003] After searching, Chinese patent number CN112483820B discloses a shaft locking mechanism for optical measuring equipment. Although the clamping force generated by the locking unit is distributed along the axial direction of the equipment and will not have an adverse effect on the performance and accuracy of the equipment shaft system, it is impossible to fix the measuring equipment while fixing the shaft system, so that the fixation of the shaft system and the fixation of the measuring equipment cannot work together and need to be performed step by step. While extending the measurement cycle, it also brings about the problem of complicated installation. At the same time, the clamping force is distributed along the axial direction of the equipment, so that there is a separation force between the fixing seat and the load platform, which is also easy to damage the shaft system. Summary of the invention

[0004] The object of the present invention is to provide a shaft system locking device for an optical axis measuring device.

[0005] In order to solve the problems raised in the above-mentioned background technology, the present invention provides the following technical solutions: an axis locking device of an optical axis measuring device, comprising a base, a bearing platform is rotatably sleeved on the central axis of the base, a bearing is fixedly connected between the bearing platform and the base, a gear ring is fixedly connected to the inner surface of the base, and a friction pad is slidably sleeved on the top surface of the base, a through hole is provided on the top surface of the bearing platform, a slide groove is provided on the inner surface of the through hole, a first closed cavity is provided in the side wall of the slide groove, a main flow channel is provided on the side wall of the bearing platform, a secondary flow channel is provided between the main flow channel and the first closed cavity, and one end of the branch flow channel is provided at the end of the main flow channel, and the other end of the branch flow channel is provided. A second closed chamber is provided, a fixing frame is fixedly connected to the side wall of the second closed chamber, a guide rod is slidably sleeved on the fixing frame, a first piston is fixedly connected to one end of the guide rod, a clamping block is fixedly connected to the other end of the guide rod, the clamping block is meshedly connected with a gear ring, a fixing ring is fixedly sleeved at the end of the main flow channel, a guide groove is provided on the outer surface of the fixing ring, a positioning inclined groove is provided on the end surface of the fixing ring, a pressure rod is slidably sleeved in the fixing ring, a connecting rod is fixedly connected to the outer surface of the pressure rod, and a connecting block is slidably sleeved at the end of the pressure rod, a rotating inclined groove is provided at one end of the connecting block, a second piston is fixedly connected to the other end of the connecting block, and a sliding rod is fixedly connected to the end surface of the second piston;

[0006] A third piston is slidably sleeved in the first closed cavity, a positioning pin is fixedly connected to the top surface of the third piston, a first clamping block and a second clamping block are slidably connected to both ends of the slide groove, a return spring is fixedly connected between the first clamping block and the second clamping block, an embedding block is fixedly connected to the side wall of the first clamping block, and an embedding groove is opened on the side wall of the second clamping block.

[0007] As a further solution of the present invention: the connecting rod and the sliding rod are both slidably connected to the guide groove, the bottom surface of the connecting rod is parallel to the inclined surface of the positioning inclined groove, the contact surface of the sliding rod is parallel to the connecting rod, and the bottom surface of the connecting rod is in contact with the rotating inclined groove.

[0008] As a further solution of the present invention: the second piston is slidably sleeved with the main flow channel, the first piston is slidably sleeved with the second closed chamber, and the top surface of the friction pad is in contact with the bottom surface of the bearing platform.

[0009] As a further solution of the present invention: a plurality of through holes are provided, the first closed cavity and the secondary flow channel correspond to the through holes one by one, and the third piston is located above the secondary flow channel.

[0010] As a further solution of the present invention: the embedding block is embedded and sleeved with the embedding groove, the positioning pin extends outside the first closed cavity, and the positioning pin is slidably sleeved with the bottom wall of the embedding groove, and the positioning pin is slidably sleeved with the embedding block.

[0011] As a further solution of the present invention: a cavity is opened in the supporting platform, and a telescopic top rod is slidably sleeved on the top surface of the supporting platform, one end of a sliding block is fixedly connected to the bottom surface of the telescopic top rod, the other end of the sliding block is contacted and connected with a pull rod, the bottom end of the pull rod is fixedly connected to the top surface of the block, one end of a lifting rod is fixedly connected to the top surface of the sliding block, the other end of the lifting rod is slidably connected to a friction pad, and a pneumatic push rod is installed on the bottom surface of the sliding block.

[0012] As a further solution of the present invention: the telescopic top rod has a built-in support spring, the sliding block is slidably sleeved in the cavity, the pneumatic push rod is fixedly sleeved in the bottom wall of the cavity, the pull rod is L-shaped, and the pull rod is horizontally slidably sleeved in the cavity.

[0013] As a further solution of the present invention: the lifting rod is vertically slidably sleeved with the bearing platform, the lifting rod is slidably sleeved with the inner surface of the base, and the supporting thrust of the pneumatic push rod is constant.

[0014] Adopting the above technical solution: Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The present invention uses compressed air to push the third piston in the first closed chamber to rise, so that the positioning pin on the third piston is inserted into the embedding groove, and the positioning pin is embedded with the embedding block, so that the positioning pin fixes the first clamping block and the second clamping block, thereby the first clamping block and the second clamping block fix the bolt, so that the bolt and the bearing platform are fixed, and then the optical axis measurement device is fixed, so that the shaft system can be fixed while the measuring device is fixed, so that the fixing of the shaft system and the fixing of the measuring device can work together, and there is no need to follow the steps in sequence, which not only shortens the measurement cycle, but also makes the installation of the optical axis measurement device simple.

[0016] 2. The present invention uses the optical axis measuring device to press down the telescopic push rod on the bearing platform, so that the other end of the telescopic push rod squeezes the slider, and the downward pressure is recorded as , while the supporting force of the pneumatic push rod under the slider on the slider is constant, recorded as When the block is meshed with the gear ring, the pull rod on the block will be separated from the slider, so that the slider pushes the lifting rod up, so that the lifting rod pushes the friction pad up, and the friction pad squeezes the bearing platform. The squeezing force is equal to the reaction force of the lifting rod on the slider, which is recorded as , so that , when the gravity of the optical axis measurement device is greater, that is The bigger the That is, the smaller the force of the friction gasket squeezing the carrier table, and vice versa, the heavier the optical axis measuring device, the smaller its limiting friction force, thereby preventing friction from damaging the axis system. At the same time, due to its large deadweight, the force affected by the outside world is also greater, making it difficult to move. The lighter the optical axis measuring device, the greater its limiting friction force, thereby fully preventing the movement of the optical axis measuring device.

[0017] 3. In the present invention, the second piston on the slide rod moves synchronously with the slide rod, so that the second piston compresses the air in the main channel, and compresses the air in the branch channel connected to the main channel, so that the compressed air pushes the first piston in the second closed chamber, and the guide rod on the first piston pushes the block to extend out of the second closed chamber, so that the block is meshed with the gear ring, and then the base and the bearing platform are relatively fixed, so as to achieve the purpose of preliminarily locking the shaft system, reduce the separation force between the base and the bearing platform, and reduce the probability of damage to the shaft system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the shaft system locking device of the optical axis measuring device of the present invention;

[0019] Figure 2 A cross-sectional view of the support platform structure in an embodiment of the present invention;

[0020] Figure 3 In the embodiment of the present invention Figure 2 A magnified view of the structure of part A;

[0021] Figure 4 In the embodiment of the present invention Figure 2 A magnified view of the structure of part B;

[0022] Figure 5 A cross-sectional view of the secondary flow channel structure in an embodiment of the present invention;

[0023] Figure 6 In the embodiment of the present invention Figure 5 A magnified view of the structure of part C in the middle;

[0024] Figure 7 It is a schematic cross-sectional view of a fixing ring structure in an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of the first clamping block in an embodiment of the present invention;

[0026] Fig. 9 Schematic diagram of the pull rod structure in an embodiment of the present invention.

[0027] In the figure: 1, base; 2, bearing platform; 3, bearing; 4, gear ring; 5, friction pad; 6, through hole; 7, slide groove; 8, first closed cavity; 9, main flow channel; 10, secondary flow channel; 11, branch flow channel; 12, second closed cavity; 13, fixed frame; 14, guide rod; 15, first piston; 16, clamping block; 17, fixing ring; 18, guide groove; 19, positioning inclined groove; 20, pressure rod; 21, connecting rod; 22, connecting block; 23, rotating inclined groove; 24, second piston; 25, slide rod; 26, third piston; 27, positioning pin; 28, first clamping block; 29, second clamping block; 30, reset spring; 31, embedded block; 32, embedded groove; 33, telescopic ejector rod; 34, slider; 35, pull rod; 36, lifting rod; 37, pneumatic push rod; 38, cavity. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] Example 1

[0030] See also Figure 1-Figure 7 The present invention provides a technical solution: a shaft system locking device for an optical axis measuring device, comprising a base 1, a bearing platform 2 is rotatably sleeved on the central axis of the base 1, a bearing 3 is fixedly connected between the bearing platform 2 and the base 1, a gear ring 4 is fixedly connected to the inner surface of the base 1, and a friction pad 5 is slidably sleeved on the top surface of the base 1, a through hole 6 is opened on the top surface of the bearing platform 2, a slide groove 7 is opened on the inner surface of the through hole 6, a first closed cavity 8 is opened in the side wall of the slide groove 7, a main flow channel 9 is opened on the side wall of the bearing platform 2, a secondary flow channel 10 is opened between the main flow channel 9 and the first closed cavity 8, and one end of a branch flow channel 11 is opened at the end of the main flow channel 9, and a second closed cavity 12 is opened at the other end of the branch flow channel 11, and the side wall of the second closed cavity 12 A fixing frame 13 is fixedly connected on the fixing frame 13, and a guide rod 14 is slidably sleeved on the fixing frame 13. A first piston 15 is fixedly connected to one end of the guide rod 14, and a clamping block 16 is fixedly connected to the other end of the guide rod 14. The clamping block 16 is meshed and connected with the gear ring 4. A fixing ring 17 is fixedly sleeved at the end of the main flow channel 9, and a guide groove 18 is provided on the outer surface of the fixing ring 17. A positioning bevel groove 19 is provided on the end surface of the fixing ring 17, and a pressure rod 20 is slidably sleeved in the fixing ring 17. A connecting rod 21 is fixedly connected to the outer surface of the pressure rod 20, and a connecting block 22 is slidably sleeved on the end of the pressure rod 20, and a rotating bevel groove 23 is provided at one end of the connecting block 22. A second piston 24 is fixedly connected to the other end of the connecting block 22, and a sliding rod 25 is fixedly connected to the end surface of the second piston 24.

[0031] See also Figure 7The connecting rod 21 and the sliding rod 25 are both slidably connected to the guide groove 18, the bottom surface of the connecting rod 21 is parallel to the inclined surface of the positioning inclined groove 19, the sliding rod 25 is parallel to the contact surface of the connecting rod 21, and the bottom surface of the connecting rod 21 is in contact with the rotating inclined groove 23.

[0032] See also Figure 2-Figure 4 The second piston 24 is slidably sleeved with the main flow channel 9 , the first piston 15 is slidably sleeved with the second closed chamber 12 , and the top surface of the friction pad 5 is in contact with the bottom surface of the bearing platform 2 .

[0033] Specifically, during the use of the optical axis measuring device, the optical axis measuring device is placed on the carrier 2, and a bolt is inserted into a specific through hole 6. During this process, the bolt squeezes the first clamp block 28 and the second clamp block 29 in the slide groove 7, so that the first clamp block 28 and the second clamp block 29 are separated to both sides and the reset spring 30 is stretched. When the bolt stops moving downward, the first clamp block 28 and the second clamp block 29 are reset under the rebound of the reset spring 30, so that the first clamp block 28 cooperates with the second clamp block 29 to engage the sleeve bolt. At this time, the carrier 2 is rotated again to achieve the purpose of adjusting the angle of the optical axis measuring device. After the angle adjustment of the optical axis measuring device is completed, the pressure rod 20 on the carrier 2 is pressed, so that the connecting rod 21 on the pressure rod 20 squeezes the slide rod 25. When the slide rod 25 moves to the positioning inclined groove 19, the guide groove 18 engages the slide rod 25. The restriction is released. As the connecting rod 21 continues to be pressed downward, the bottom surface of the connecting rod 21 will push the sliding rod 25 to rotate, so that the sliding rod 25 slides into the positioning inclined groove 19, so that the positioning inclined groove 19 blocks the return of the sliding rod 25. In the above process, the second piston 24 on the sliding rod 25 moves synchronously with the sliding rod 25, so that the second piston 24 compresses the air in the main flow channel 9, so that the air in the branch flow channel 11 connected to the main flow channel 9 is compressed, so that the compressed air pushes the first piston 15 in the second closed chamber 12, so that the guide rod 14 on the first piston 15 pushes the block 16 to extend out of the second closed chamber 12, so that the block 16 is meshed and connected with the gear ring 4, and then the base 1 and the bearing platform 2 are relatively fixed, so as to achieve the purpose of preliminarily locking the shaft system, so that the separation force between the base 1 and the bearing platform 2 is reduced, and the probability of shaft system damage is reduced.

[0034] Example 2

[0035] See also Figure 1 , Figure 5 , Figure 6 and Figure 8The present invention provides a technical solution: a shaft system locking device for an optical axis measuring device, wherein a third piston 26 is slidably sleeved in a first closed chamber 8, a positioning pin 27 is fixedly connected to the top surface of the third piston 26, a first clamping block 28 and a second clamping block 29 are slidably connected at both ends of a slide groove 7, a return spring 30 is fixedly connected between the first clamping block 28 and the second clamping block 29, an embedding block 31 is fixedly connected to the side wall of the first clamping block 28, and an embedding groove 32 is opened on the side wall of the second clamping block 29.

[0036] See also Figure 2 and Figure 6 A plurality of through holes 6 are provided, the first closed chamber 8 and the secondary flow channel 10 correspond to the through holes 6 one by one, and the third piston 26 is located above the secondary flow channel 10 .

[0037] See also Figure 8 The embedded block 31 is engaged with the embedded groove 32, the positioning pin 27 extends outside the first closed cavity 8, and the positioning pin 27 is slidably engaged with the bottom wall of the embedded groove 32, and the positioning pin 27 is slidably engaged with the embedded block 31.

[0038] Specifically, in the process of the second piston 24 compressing the air in the main channel 9, the secondary channel 10 connected to the main channel 9 will be compressed synchronously, so that the compressed air pushes the third piston 26 in the first closed chamber 8 to rise, so that the positioning pin 27 on the third piston 26 is inserted into the embedding groove 32, and the positioning pin 27 is embedded with the embedding block 31, so that the positioning pin 27 fixes the first clamping block 28 and the second clamping block 29, so that the first clamping block 28 and the second clamping block 29 fix the bolt, so that the bolt is fixed to the supporting platform 2, and then the optical axis measurement equipment is fixed, so that the measuring equipment can be fixed while the shaft system is fixed, so that the fixing of the shaft system and the fixing of the measuring equipment can work together, and there is no need to follow the steps in sequence, which not only shortens the measurement cycle, but also makes the installation of the optical axis measurement equipment simple.

[0039] Example 3

[0040] See also Figure 1 , Figure 2 and Fig. 9 The present invention provides a technical solution: an axis locking device for an optical axis measuring device, a cavity 38 is opened in the bearing platform 2, and a telescopic top rod 33 is slidably sleeved on the top surface of the bearing platform 2, one end of a slider 34 is fixedly connected to the bottom surface of the telescopic top rod 33, and the other end of the slider 34 is contacted and connected with a pull rod 35, the bottom end of the pull rod 35 is fixedly connected to the top surface of the block 16, one end of a lifting rod 36 is fixedly connected to the top surface of the slider 34, the other end of the lifting rod 36 is slidably connected to the friction pad 5, and a pneumatic push rod 37 is installed on the bottom surface of the slider 34.

[0041] See also Figure 2 and Fig. 9The telescopic top rod 33 has a built-in supporting spring, the slider 34 is slidably sleeved with the cavity 38, the pneumatic push rod 37 is fixedly sleeved with the bottom wall of the cavity 38, and the pull rod 35 is L-shaped, and the pull rod 35 is horizontally slidably sleeved with the cavity 38.

[0042] See also Figure 2 The lifting rod 36 is vertically slidably sleeved with the bearing platform 2, the lifting rod 36 is slidably sleeved with the inner surface of the base 1, and the supporting thrust of the pneumatic push rod 37 is constant.

[0043] Specifically, when the optical axis measuring device is placed on the supporting platform 2, the optical axis measuring device will press down the telescopic push rod 33 on the supporting platform 2, so that the other end of the telescopic push rod 33 squeezes the slider 34, and its downward pressure is recorded as, and the pneumatic push rod 37 under the slider 34 has a constant supporting force on the slider 34, recorded as, when the block 16 is engaged with the gear ring 4, the pull rod 35 on the block 16 will be disengaged from the slider 34, so that the slider 34 pushes the lifting rod 36 to rise, so that the lifting rod 36 pushes the friction pad 5 to rise, and the friction pad The plate 5 squeezes the supporting platform 2, and its squeezing force is equal to the reaction force of the lifting rod 36 on the slider 34, which is recorded as, so that when the gravity of the optical axis measuring device is greater, that is, the greater is, the smaller the force of the friction pad 5 squeezing the supporting platform 2 is, and vice versa, so that the heavier the optical axis measuring device, the smaller the limiting friction force is, so as to avoid the friction force damaging the axis system. At the same time, because of its large dead weight, the force affected by the outside world is also greater, so it is not easy to move. The lighter the optical axis measuring device, the greater the limiting friction force is, so as to fully avoid the movement of the optical axis measuring device.

[0044] The working principle and use process of the present invention are as follows: when the optical axis measuring device is needed, the optical axis measuring device is placed on the bearing platform 2, and the bolt is inserted into the specific through hole 6. During this process, the bolt squeezes the first clamp block 28 and the second clamp block 29 in the slide groove 7, so that the first clamp block 28 and the second clamp block 29 are separated to both sides and the reset spring 30 is stretched. When the bolt stops moving downward, the first clamp block 28 and the second clamp block 29 are reset under the rebound of the reset spring 30, so that the first clamp block 28 cooperates with the second clamp block 29 to engage the sleeve bolt. At this time, the bearing platform 2 is rotated again to achieve the purpose of adjusting the angle of the optical axis measuring device. After the angle adjustment of the optical axis measuring device is completed, the pressure rod 20 on the bearing platform 2 is pressed, so that the connecting rod 21 on the pressure rod 20 squeezes the sliding rod 25. When the sliding rod 25 moves to the positioning inclined groove 19, the guide groove 18 is aligned with the positioning inclined groove 19. The restriction of the slide bar 25 is released. As the connecting rod 21 continues to be pressed down, the bottom surface of the connecting rod 21 will push the slide bar 25 to rotate, so that the slide bar 25 slides into the positioning inclined groove 19, so that the positioning inclined groove 19 blocks the return of the slide bar 25. In the above process, the second piston 24 on the slide bar 25 moves synchronously with the slide bar 25, so that the second piston 24 compresses the air in the main flow channel 9, so that the air in the branch flow channel 11 connected to the main flow channel 9 is compressed, so that the compressed air pushes the first piston 15 in the second closed chamber 12, so that the guide rod 14 on the first piston 15 pushes the block 16 to extend out of the second closed chamber 12, so that the block 16 is meshed and connected with the gear ring 4, and then the base 1 and the bearing platform 2 are relatively fixed, so as to achieve the purpose of preliminarily locking the shaft system, so that the separation force between the base 1 and the bearing platform 2 is reduced, and the probability of shaft system damage is reduced;

[0045] When the second piston 24 compresses the air in the main flow channel 9, the secondary flow channel 10 connected to the main flow channel 9 will be compressed synchronously, so that the compressed air pushes the third piston 26 in the first closed chamber 8 to rise, so that the positioning pin 27 on the third piston 26 is inserted into the embedding groove 32, and the positioning pin 27 is embedded with the embedding block 31, so that the positioning pin 27 fixes the first clamping block 28 and the second clamping block 29, so that the first clamping block 28 and the second clamping block 29 fix the bolt, so that the bolt is fixed to the bearing platform 2, and then the optical axis measurement equipment is fixed, so that the measuring equipment can be fixed while the shaft system is fixed, so that the fixing of the shaft system and the fixing of the measuring equipment can work together, and there is no need to follow the steps in sequence, which not only shortens the measurement cycle, but also makes the installation of the optical axis measurement equipment simple.

[0046] During the above process, when the optical axis measuring device is placed on the carrier 2, the optical axis measuring device will press down the telescopic push rod 33 on the carrier 2, so that the other end of the telescopic push rod 33 squeezes the slider 34, and the downward pressure is recorded as , and the supporting force of the pneumatic push rod 37 under the slider 34 on the slider 34 is constant, which is recorded as When the block 16 is meshed with the gear ring 4, the pull rod 35 on the block 16 will be disengaged from the slider 34, so that the slider 34 pushes the lifting rod 36 to rise, so that the lifting rod 36 pushes the friction pad 5 to rise, and the friction pad 5 squeezes the bearing platform 2, and its squeezing force is equal to the reaction force of the lifting rod 36 on the slider 34, which is recorded as , so that , when the gravity of the optical axis measurement device is greater, that is The bigger the That is, the smaller the force with which the friction gasket 5 squeezes the supporting platform 2, and vice versa, the heavier the optical axis measuring device, the smaller its limiting friction force, thereby preventing friction from damaging the axis system. At the same time, due to its large deadweight, the force affected by the outside world is also greater, making it difficult to move. The lighter the optical axis measuring device, the greater its limiting friction force, thereby fully preventing the movement of the optical axis measuring device and completing the operation.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A shaft locking device for an optical axis measuring device, characterized in that: The invention comprises a base (1), a bearing platform (2) is rotatably sleeved on the central axis of the base (1), a bearing (3) is fixedly connected between the bearing platform (2) and the base (1), a gear ring (4) is fixedly connected to the inner surface of the base (1), and a friction pad (5) is slidably sleeved on the top surface of the base (1), a through hole (6) is provided on the top surface of the bearing platform (2), a slide groove (7) is provided on the inner surface of the through hole (6), a first closed cavity (8) is provided in the side wall of the slide groove (7), a main flow channel (9) is provided on the side wall of the bearing platform (2), a secondary flow channel (10) is provided between the main flow channel (9) and the first closed cavity (8), and one end of a branch flow channel (11) is provided at the end of the main flow channel (9), and a second closed cavity (12) is provided at the other end of the branch flow channel (11), and a fixing frame (13) is fixedly connected to the side wall of the second closed cavity (12), and the fixing frame (13) is fixedly connected to the side wall of the second closed cavity (12). A guide rod (14) is slidably sleeved on the frame (13), one end of the guide rod (14) is fixedly connected to a first piston (15), the other end of the guide rod (14) is fixedly connected to a clamping block (16), the clamping block (16) is meshingly connected to the gear ring (4), the end of the main channel (9) is fixedly sleeved with a fixing ring (17), the outer surface of the fixing ring (17) is provided with a guide groove (18), the end surface of the fixing ring (17) is provided with a positioning inclined groove (19), and a pressure rod (20) is slidably sleeved in the fixing ring (17), the outer surface of the pressure rod (20) is fixedly connected to a connecting rod (21), and the end of the pressure rod (20) is slidably sleeved with a connecting block (22), one end of the connecting block (22) is provided with a rotating inclined groove (23), the other end of the connecting block (22) is fixedly connected to a second piston (24), and the end surface of the second piston (24) is fixedly connected to a sliding rod (25); A third piston (26) is slidably sleeved in the first closed chamber (8), a positioning pin (27) is fixedly connected to the top surface of the third piston (26), a first clamping block (28) and a second clamping block (29) are slidably connected at both ends of the slide groove (7), a return spring (30) is fixedly connected between the first clamping block (28) and the second clamping block (29), an embedding block (31) is fixedly connected to the side wall of the first clamping block (28), and an embedding groove (32) is provided on the side wall of the second clamping block (29).

2. The shaft locking device of the optical axis measuring device according to claim 1, characterized in that: The connecting rod (21) and the sliding rod (25) are both slidably sleeved with the guide groove (18), the bottom surface of the connecting rod (21) is parallel to the inclined surface of the positioning inclined groove (19), the contact surface of the sliding rod (25) is parallel to the connecting rod (21), and the bottom surface of the connecting rod (21) is in contact with the rotating inclined groove (23).

3. The shaft locking device of the optical axis measuring device according to claim 1, characterized in that: The second piston (24) is slidably sleeved with the main flow channel (9), the first piston (15) is slidably sleeved with the second closed chamber (12), and the top surface of the friction pad (5) is in contact with the bottom surface of the bearing platform (2).

4. The shaft locking device of the optical axis measuring device according to claim 1, characterized in that: A plurality of through holes (6) are provided, the first sealed chamber (8) and the secondary flow channel (10) correspond to the through holes (6) in a one-to-one manner, and the third piston (26) is located above the secondary flow channel (10).

5. The shaft locking device of the optical axis measuring device according to claim 1, characterized in that: The insert block (31) is fitted and sleeved with the insert groove (32), the positioning pin (27) extends outside the first closed cavity (8), the positioning pin (27) is slidably sleeved with the bottom wall of the insert groove (32), and the positioning pin (27) is slidably sleeved with the insert block (31).

6. The shaft locking device of the optical axis measuring device according to claim 1, characterized in that: A cavity (38) is provided in the support platform (2), and a telescopic push rod (33) is slidably sleeved on the top surface of the support platform (2), one end of a slider (34) is fixedly connected to the bottom surface of the telescopic push rod (33), the other end of the slider (34) is contact-connected with a pull rod (35), the bottom end of the pull rod (35) is fixedly connected to the top surface of the block (16), one end of a lifting rod (36) is fixedly connected to the top surface of the slider (34), the other end of the lifting rod (36) is slidably connected to the friction pad (5), and a pneumatic push rod (37) is installed on the bottom surface of the slider (34).

7. The shaft locking device of the optical axis measuring device according to claim 6, characterized in that: The telescopic top rod (33) has a built-in support spring, the sliding block (34) is slidably sleeved with the cavity (38), the pneumatic push rod (37) is fixedly sleeved with the bottom wall of the cavity (38), the pull rod (35) is arranged in an L shape, and the pull rod (35) is horizontally slidably sleeved with the cavity (38).

8. The shaft locking device of the optical axis measuring device according to claim 6, characterized in that: The lifting rod (36) is vertically slidably sleeved with the bearing platform (2), the lifting rod (36) is slidably sleeved with the inner surface of the base (1), and the supporting thrust of the pneumatic push rod (37) is constant.

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