Lensometer dotting adjusting mechanism

Abstract

The utility model discloses a dotting adjusting mechanism for a lensometer, and particularly relates to the technical field of lensometer adjustment, the dotting adjusting mechanism comprises a slide rail bottom plate, one side of the slide rail bottom plate is provided with two base plates, and a multi-point guide sliding assembly is arranged between the two base plates; the multi-point guiding sliding assembly comprises a ball frame installed between the two base plates, a plurality of balls are arranged on one side of the ball frame, and a sliding rail potential block is arranged on one side of one base plate. According to the utility model, the base plate is placed in the groove of the slide rail bottom plate, the position of the base plate is in extrusion contact with the locking pin, the two roller pins on the two sides are placed in the grooves on the two sides of the slide block, the balls are coated with lubricating grease and placed in a gap in the ball frame, and the other base plate is placed in the slide rail potential block, so that the extrusion force of the base plate can be reduced; and the ball rack is smooth on the sliding block without clamping stagnation and deflection.

Description

Technical Field

[0001] This utility model relates to the field of focimeter adjustment technology, and more specifically, to a focimeter dot-matrix adjustment mechanism. Background Technology

[0002] The current focimeter slide rail mechanism has two drawbacks in its point-marking adjustment. First, the slider in the slide rail has a large lateral sway during linear displacement, resulting in significant errors. Second, the slider does not move smoothly and exhibits jamming during linear displacement, leading to poor adjustment performance of the focimeter point-marking adjustment mechanism.

[0003] Among the existing published documents, patent publication number CN207867107U discloses an autofocus system for a telephoto camera. This technology adjusts the camera's focal length by receiving control commands through a focusing transmission mechanism. In this embodiment, the autofocus system for a telephoto camera does not require manual adjustment, thereby improving the focusing speed of the telephoto camera. However, this patent has the following drawbacks.

[0004] During the focimeter marking process, it is necessary to move and adjust in a specified direction. However, it is difficult to move stably to the specified position according to the actual use, which makes the adjustment very easy to deviate and the stability deteriorates. Secondly, there may be jamming problems, making it difficult to achieve stable adjustment of the focimeter marking. Utility Model Content

[0005] To overcome the aforementioned deficiencies of the prior art, this utility model provides the following technical solution: a focimeter dot-matrix adjustment mechanism, comprising a slide rail base plate, two pads mounted on one side of the slide rail base plate, and a multi-point guide sliding assembly installed between the two pads; the multi-point guide sliding assembly includes a ball bearing frame installed between the two pads, a plurality of balls provided on one side of the ball bearing frame, a slide rail potential block provided on one side of one of the pads, and two pins mounted on one side of the slide rail potential block; two limiting pins provided on one side of the balls, a slider provided on one side of the limiting pins, and two needle rollers provided on both sides of the slider.

[0006] Preferably, a plurality of balls are inserted into the inner wall of a ball bearing cage and roll, the vertical cross-section of each ball bearing being circular. Two pads are symmetrically arranged about the ball bearing cage, the outer walls of the pads and the inner wall of the ball bearing cage being smooth surfaces, and the outer wall of the ball bearing cage being smooth surface. A gap is provided between adjacent needle rollers, and both needle rollers are fixedly connected to the slider. The outer wall of the slider and the outer wall of the limiting pins are both smooth surfaces, and there are two limiting pins.

[0007] In use, the locking pin is first pressed into the slide rail base plate for bonding and fixing. The pad is then placed in the groove of the slide rail base plate, with its position pressing against the locking pin. The limiting pin is then pressed into the slider for bonding and fixing. Both rollers on both sides are placed into the grooves on both sides of the slider. The assembled ball bearing is placed on the outer wall of the slider. The two pins are pressed into the slide rail potential block and then into another pad. The other pad is placed inside the slide rail potential block. The slide rail base plate is then locked in place using the positioning screws. This completes the assembly, allowing the ball bearing to move smoothly on the slider without jamming or wobble.

[0008] Preferably, two positioning screws are provided on one side of the slide rail base plate, and locking pins are provided on the opposite side of the two positioning screws. The outer walls of the two locking pins are smooth, and the vertical cross-section of the two locking pins is circular.

[0009] When using this technology, the clamping force of the positioning screws is adjusted to lock the mounting slide rail base plate in place. The clamping force of the positioning screws is adjusted to achieve dual distributed clamping.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] This invention places a pad into the groove of the slide rail base plate, where it is pressed against the locking pin. Then, a limiting pin is pressed into the slider for bonding and fixing. Two rollers on both sides are placed into the grooves on both sides of the slider. The balls are placed in the gap inside the ball holder after being coated with grease. Two pins are pressed into the slide rail potential block and then into another pad. The other pad is placed inside the slide rail potential block, which reduces the pressure on the pad and allows the ball holder to move smoothly on the slider without jamming or wobble.

[0012] 2. This utility model uses the extrusion pressure of the positioning screw to achieve positioning extrusion. The slide rail base plate is locked by the positioning screw. The extrusion pressure of the positioning screw is adjusted, resulting in double distributed extrusion and better adjustable stability. Attached Figure Description

[0013] Figure 1 This is an exploded view of the focimeter dot-matrix adjustment mechanism of this utility model.

[0014] Figure 2 This is a partial structural diagram of the disassembled ball bearing and ball bearing cage of this utility model.

[0015] Figure 3 This is a schematic diagram of the disassembled structure of the limiting pin and needle roller of this utility model.

[0016] The attached diagram is labeled as follows: 1. Slide rail base plate; 2. Pad plate; 3. Ball bearing cage; 4. Pin; 5. Slide rail potential block; 6. Ball bearing; 7. Limit pin; 8. Slider; 9. Needle roller; 10. Positioning screw; 11. Locking pin. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] As attached Figure 1 - Appendix Figure 3 The focimeter marking adjustment mechanism shown has a multi-point guide sliding component. The multi-point guide sliding component allows two pins 4 to be pressed into the slide rail potential block 5 and then onto another pad 2. The other pad 2 is placed inside the slide rail potential block 5, which reduces the squeezing force on the pad 2, allowing the ball bearing 3 to move smoothly on the slider 8 without jamming or wobble. The specific structure of the multi-point guide sliding component is as follows.

[0019] In this embodiment, as shown in the appendix Figure 1 - Appendix Figure 3 As shown, two pads 2 are installed on one side of the slide rail base plate 1, and a multi-point guide sliding assembly is installed between the two pads 2. The multi-point guide sliding assembly includes a ball bearing frame 3 installed between the two pads 2. Multiple balls 6 are provided on one side of the ball bearing frame 3. A slide rail potential block 5 is provided on one side of one of the pads 2, and two pins 4 are installed on one side of the slide rail potential block 5. Two limiting pins 7 are provided on one side of the balls 6, and a slider 8 is provided on one side of the limiting pins 7. Two needle rollers 9 are provided on both sides of the slider 8. The multiple balls 6 are used to roll along the inner wall of the ball bearing frame 3, and the vertical cross-section of the balls 6 is circular. The two pads 2 are symmetrically arranged about the ball bearing frame 3. The outer walls of the pads 2 and the inner walls of the ball bearing frame 3 are both smooth surfaces. The outer wall of the ball bearing frame 3 is also smooth. There is a gap between two adjacent needle rollers 9, and both needle rollers 9 are fixedly connected to the slider 8. The outer walls of the slider 8 and the limiting pins 7 are both smooth surfaces, and there are two limiting pins 7.

[0020] In the focimeter marking adjustment mechanism of this technology, during installation, firstly, the locking pin 11 is pressed into the slide rail base plate 1 for bonding and fixing. Then, the pad 2 is placed in the groove of the slide rail base plate 1, and its position is pressed into contact with the locking pin 11. Then, the limiting pin 7 is pressed into the slider 8 for bonding and fixing. The two rollers 9 on both sides are placed into the grooves on both sides of the slider 8. The balls 6 are placed into the gap inside the ball holder 3 after applying grease. The assembled ball holder 3 is placed on the outer wall of the slider 8. The two pins 4 are pressed into the slide rail potential block 5 and then into another pad 2. The other pad 2 is placed inside the slide rail potential block 5. The slide rail base plate 1 is locked in place by the positioning screw 10. The assembly is then completed. Adjusting the pressing force of the positioning screw 10 can reduce the pressing force of the pad 2, so that the ball holder 3 moves smoothly on the slider 8 without jamming or wobble. This greatly improves the adjustable stability of the focimeter marking.

[0021] In this embodiment, as shown in the appendix Figure 1 As shown, two positioning screws 10 are provided on one side of the slide rail base plate 1, and locking pins 11 are provided on the opposite side of the two positioning screws 10. The outer walls of the two locking pins 11 are smooth, and the vertical cross-section of the two locking pins 11 is circular.

[0022] In this technical solution, the clamping force of the positioning screw 10 is adjusted to achieve positioning clamping. The slide rail base plate 1 is locked in place by the positioning screw 10. Adjusting the clamping force of the positioning screw 10 results in double distributed clamping, which greatly improves the stability of the mating clamping between the slide rail base plate 1 and the pad plate 2.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A focimeter dot-tracking adjustment mechanism, comprising a slide rail base plate (1), characterized in that: Two pads (2) are installed on one side of the slide rail base plate (1), and a multi-point guide sliding assembly is installed between the two pads (2); The multi-point guide sliding assembly includes a ball frame (3) installed between two pads (2), with a plurality of balls (6) on one side of the ball frame (3), and a slide rail potential block (5) on one side of one of the pads (2), with two pins (4) installed on one side of the slide rail potential block (5). Two limiting pins (7) are provided on one side of the ball (6), and a slider (8) is provided on one side of the limiting pin (7). Two needle rollers (9) are provided on both sides of the slider (8).

2. The focimeter dot-matrix adjustment mechanism according to claim 1, characterized in that: Multiple balls (6) are used to be inserted into the inner wall of the ball holder (3) and roll, and the vertical cross-section of the balls (6) is circular.

3. The focimeter dot-matrix adjustment mechanism according to claim 1, characterized in that: The two pads (2) are symmetrically arranged about the ball frame (3). The outer wall of the pad (2) and the inner wall of the ball frame (3) are both smooth surfaces. The outer wall of the ball frame (3) is a smooth surface.

4. The focimeter dot-matrix adjustment mechanism according to claim 1, characterized in that: A gap is provided between two adjacent needle rollers (9), and both needle rollers (9) are fixedly connected to the slider (8).

5. The focimeter dot-matrix adjustment mechanism according to claim 1, characterized in that: The outer wall of the slider (8) and the outer wall of the limiting pin (7) are both smooth surfaces, and the number of the limiting pin (7) is set to two.

6. The focimeter dot-matrix adjustment mechanism according to claim 1, characterized in that: Two positioning screws (10) are provided on one side of the slide rail base plate (1), and locking pins (11) are provided on the opposite side of the two positioning screws (10).

7. The focimeter dot-matrix adjustment mechanism according to claim 6, characterized in that: The outer walls of both locking pins (11) are smooth, and the vertical cross-section of both locking pins (11) is circular.

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