Simple bearing type micro-motion base suitable for laser demarcation device

Abstract

The utility model relates to a simple bearing type micro-motion base suitable for a laser demarcation device, which comprises a base body, a containing space is arranged in the base body, a tray is movably arranged above the containing space, a bearing is arranged at the bottom of the tray, a guide connection column is distributed in the containing space, and an inner ring of the bearing is connected with the guide connection column. The lower portion of the tray is located at the outer end of the bearing and sleeved with a micro-motion gear, the base body is provided with an adjusting device, the adjusting device is meshed with the micro-motion gear, and a gap eliminating device is arranged in the containing space and connected with the adjusting device. Therefore, the requirements of rapid steering adjustment and fine adjustment can be met, convenient angle steering is realized, and the laser demarcation device is enabled to be at a better demarcation angle. The adjusting device is of a lead screw structure, and high-precision adjustment can be achieved through the adjusting device and the micro-motion gear. And an independent gap eliminating device is arranged, so that the resetting and meshing requirements of the adjusting device can be met, and the backlash abnormity is avoided.

Description

Technical Field

[0001] The utility model relates to a micro-motion base, in particular to a simple bearing type micro-motion base suitable for a laser line projector. Background Art

[0002] Laser line projection equipment is a common tool used for line projection. To achieve precise projection angles, it is often equipped with an adjustable base. These bases are primarily categorized as semi-fine-motion and fully fine-motion. Currently, fully fine-motion bases are more commonly used due to the need for functional expansion.

[0003] However, the current fully micro-motion base structure is relatively complex, requiring several different gear sets, including micro-motion discs, micro-motion gears, and adjustment gears, to achieve micro-motion coordination. Errors in a single gear can easily lead to micro-adjustment failure. Furthermore, the gears require high precision, resulting in high manufacturing costs. Furthermore, rapid angle adjustment is impossible, requiring only the use of an adjustment lever to drive the gears. This can easily lead to user error, such as scraping teeth when rotating the base quickly.

[0004] In view of the above-mentioned defects, the designer has actively carried out research and innovation in order to create a simple bearing-type micro-motion base suitable for laser line projection instruments, making it more valuable for industrial use. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a simple bearing-type micro-motion base suitable for a laser line projector.

[0006] The utility model is a simple bearing-type micro-motion base suitable for a laser line projector, comprising a base body, wherein: a storage space is opened in the base body, a tray is movably installed above the storage space, a bearing is installed at the bottom of the tray, guide columns are distributed in the storage space, the inner ring of the bearing is connected to the guide columns, the lower part of the tray is located at the outer end of the bearing, and a micro-motion gear is also sleeved, the base body is installed with an adjustment device, the adjustment device is engaged with the micro-motion gear, a gap elimination device is provided in the storage space, and the gap elimination device is connected to the adjustment device.

[0007] Furthermore, in the above-mentioned simple bearing-type micro-motion base suitable for the laser line projector, a contact ring extends below the tray, and the outer wall of the bearing and the inner wall of the contact ring are interference fit.

[0008] Furthermore, in the above-mentioned simple bearing-type micro-motion base suitable for the laser line projector, a limiting convex strip is provided on the inner wall of the contact ring, and the upper end of the bearing abuts against the limiting convex strip.

[0009] Furthermore, the above-mentioned simple bearing-type micro-motion base suitable for the laser line projector, wherein the outer edge of the tray is distributed with a stop ring, the outer periphery of the micro-motion gear is in contact with the stop ring, the storage space is distributed with a limit ring, and the lower surface of the micro-motion gear is provided with a contact boss, and the contact boss is in contact with the limit ring.

[0010] Furthermore, in the above-mentioned simple bearing-type micro-motion base suitable for the laser line projector, grease is filled between the outer periphery of the micro-motion gear and the stop ring.

[0011] Furthermore, the above-mentioned simple bearing-type micro-motion base suitable for the laser line projector, wherein the adjustment device includes a micro-motion rod movably inserted into the base body, the middle section of the micro-motion rod is a screw structure, the screw structure is engaged with the micro-motion gear, and handwheels are installed at both ends of the micro-motion rod through locking screws.

[0012] Furthermore, the above-mentioned simple bearing-type micro-motion base suitable for the laser line projector, wherein the two ends of the micro-motion rod are connected to the handwheel through washers, and the outer surface of the handwheel is distributed with a plurality of anti-slip bumps.

[0013] Furthermore, the above-mentioned simple bearing-type micro-motion base suitable for the laser line projector is provided with a waist-shaped hole on the base body corresponding to the insertion position of the micro-motion rod.

[0014] Furthermore, the above-mentioned simple bearing-type micro-motion base suitable for the laser line projector, wherein the gap elimination device includes a screw assembly mirror-distributed in the storage space, a pull rod spring is passed through the screw assembly, and one end of the pull rod spring is mounted on the adjustment device.

[0015] Furthermore, the above-mentioned simple bearing-type micro-motion base suitable for the laser line projector is characterized in that a plurality of countersunk screws are connected to the guide column, and the wide sides of the countersunk screws engage with the upper end surface of the bearing.

[0016] By means of the above solution, the present invention has at least the following advantages:

[0017] 1. It can meet the needs of rapid steering adjustment and micro-adjustment, realize convenient angle steering, and put the laser line projector at the best projection angle.

[0018] 2. The adjustment device adopts a screw structure, which can achieve high-precision adjustment with the micro gear.

[0019] 3. An independent gap elimination device is set up to meet the reset and engagement needs of the adjustment device, avoid the "backlash" anomaly, and can meet the long-term stable maintenance of the current angle.

[0020] 4. The adjustment device is convenient for users to adjust by hand, and can meet the independent or separate adjustment of left and right hands to adapt to different usage habits of users.

[0021] 5. The overall structure is simple, easy to assemble and use, and will not cause improper motion interference to the rotation of the micro-motion rod.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a simple bearing-type micro-motion base suitable for laser line projection equipment.

[0024] Figure 2 This is a schematic diagram of the exploded structure of a simple bearing-type micro-motion base suitable for laser line projection instruments.

[0025] Figure 3 This is a schematic diagram of the bearing installation.

[0026] Figure 4 It is a schematic diagram of the meshing of the micro-motion rod and micro-motion gear.

[0027] The meanings of the reference numerals in the figures are as follows.

[0028] 1 Base body 2 Storage space

[0029] 3 trays 4 bearings

[0030] 5 Guide column 6 Micro gear

[0031] 7 Contact ring 8 Stop ring

[0032] 9 Limiting ring 10 Micro-movement rod

[0033] 11 Locking screw 12 Handwheel

[0034] 13 Washer 14 Screw assembly

[0035] 15 tension rod spring 16 countersunk screw DETAILED DESCRIPTION

[0036] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] like Figures 1 to 4The simple bearing-type micro-motion base suitable for laser line projectors includes a base body 1. Its uniqueness lies in that a storage space 2 is provided in the base body 1, and a tray 3 is movably installed above the storage space 2. Specifically, a bearing 4 is installed at the bottom of the tray 3, and a guide column 5 is distributed in the storage space 2. The inner ring of the bearing 4 is connected to the guide column 5. In this way, under the guidance of the bearing 4, the tray 3 can freely rotate along the axis of the guide column 5. At the same time, a micro-motion gear 6 is also provided below the tray 3 at the outer end of the bearing 4. An adjustment device is installed on the base body 1, and the adjustment device is engaged with the micro-motion gear 6. In this way, the micro-rotation of the tray 3 can be achieved through the cooperation of the adjustment device and the micro-motion gear 6. During implementation, in order to avoid unnecessary and excessive gaps between the adjustment device and the micro-motion gear 6, a gap elimination device is provided in the storage space 2, and the gap elimination device is connected to the adjustment device. In this way, the accuracy of fine-tuning can be improved and accidental sliding of the micro-motion gear 6 can be avoided.

[0038] In accordance with a preferred embodiment of the present invention, a contact ring 7 extends beneath the tray 3. The outer wall of the bearing 4 forms an interference fit with the inner wall of the contact ring 7. This ensures a tight fit between the bearing 4 and the tray 3 without affecting the bearing's rotation. Furthermore, the inner wall of the contact ring 7 is provided with a retaining rib (not shown), against which the upper end of the bearing 4 abuts. This ensures that the bearing 4 is securely installed during installation, preventing it from tilting.

[0039] Furthermore, a stop ring 8 is provided on the outer edge of the tray 3, with the outer periphery of the fine-motion gear 6 in contact with the stop ring 8. This facilitates the connection between the tray 3 and the fine-motion gear 6. Furthermore, a stop ring 9 is provided in the storage space 2, and a contact boss is provided on the lower surface of the fine-motion gear 6, which contacts the stop ring 9. This provides an appropriate height difference, ensuring smooth rotation of the fine-motion gear 6. Furthermore, to ensure proper lubrication of the fine-motion gear 6, grease can be filled between the outer periphery of the fine-motion gear 6 and the stop ring 8.

[0040] In view of the actual implementation, the adjustment device includes a fine-tuning rod 10 that is movably inserted into the base body 1. The middle section of the fine-tuning rod 10 is a screw structure, which is engaged with the fine-tuning gear 6. Handwheels 12 are installed at both ends of the fine-tuning rod 10 through locking screws 11. In this way, by holding the handwheel 12, the fine-tuning rod 10 can be easily rotated, and then the meshing transmission between the gears is used to make the fine-tuning gear 6 drive the tray 3 to rotate. In order to achieve stable installation of the handwheel 12 and avoid loosening or improper rotation during use, the two ends of the fine-tuning rod 10 are connected to the handwheel 12 through washers 13. In addition, the outer surface of the handwheel 12 is distributed with several anti-slip bumps for easy grasping by the user. At the same time, the base body 1 is provided with a waist-shaped hole (not shown in the figure) corresponding to the insertion position of the fine-tuning rod 10. In this way, the fine-tuning rod 10 is prevented from getting stuck or stuck due to interference from the shape of the hole when rotating, and smooth rotation is achieved.

[0041] Furthermore, in order to eliminate the improper clearance between the fine-motion rod 10 and the fine-motion gear 6 and ensure that the laser line projector does not experience "backlash" during rotation during use, the clearance elimination device includes a screw assembly 14 distributed in a mirror image within the storage space 2. The screw assembly 14 is penetrated by a pull rod spring 15, and one end of the pull rod spring 15 is provided with a loop structure, which is mounted on the fine-motion rod 10 of the adjustment device. In this way, relying on the elastic stress exerted by the pull rod spring 15, the fine-motion rod 10 is always kept in mesh with the fine-motion gear 6, without affecting the rotation of the fine-motion rod 10 itself.

[0042] At the same time, in order to ensure proper positioning of the bearing 4 and prevent abnormal up and down shaking while ensuring its rotation, a number of countersunk screws 16 are connected to the guide column 5, and the wide sides of the countersunk screws 16 engage the upper end surface of the bearing 4.

[0043] The working principle of this utility model is as follows:

[0044] The laser line projector is connected to the tray 3 by plugging or screwing.

[0045] When the user needs to rotate quickly and has no requirements on the rotation angle, the user can rotate the tray 3 by hand. After the rotation stops, the tray 3 is locked and positioned under the action of the gap elimination device, and there will be no "empty return" abnormality.

[0046] When fine adjustment is required, the hand wheel 12 is rotated clockwise or counterclockwise as appropriate. The fine adjustment lever 10 and the fine adjustment gear 6 are then used to adjust the tray 3 to the appropriate angle. After adjustment, the backlash elimination device can be used to lock the position.

[0047] It can be seen from the above text description and the accompanying drawings that the present invention has the following advantages:

[0048] 1. It can meet the needs of rapid steering adjustment and micro-adjustment, realize convenient angle steering, and put the laser line projector at the best projection angle.

[0049] 2. The adjustment device adopts a screw structure, which can achieve high-precision adjustment with the micro gear.

[0050] 3. An independent gap elimination device is set up to meet the reset and engagement needs of the adjustment device, avoid the "backlash" anomaly, and can meet the long-term stable maintenance of the current angle.

[0051] 4. The adjustment device is convenient for users to adjust by hand, and can meet the independent or separate adjustment of left and right hands to adapt to different usage habits of users.

[0052] 5. The overall structure is simple, easy to assemble and use, and will not cause improper motion interference to the rotation of the micro-motion rod.

[0053] In addition, the indicated orientations or positional relationships described in the present invention are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or structure referred to must have a specific orientation or be operated in a specific orientation structure. Therefore, they cannot be understood as a limitation on the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A simple bearing-type micro-motion base suitable for a laser line projector, comprising a base body, characterized in that: A storage space is provided in the base body, a tray is movably installed above the storage space, a bearing is installed at the bottom of the tray, guide columns are distributed in the storage space, the inner ring of the bearing is connected to the guide columns, the lower part of the tray is located at the outer end of the bearing, and a micro gear is also provided, an adjustment device is installed on the base body, the adjustment device is engaged with the micro gear, a gap elimination device is provided in the storage space, and the gap elimination device is connected to the adjustment device.

2. The simple bearing-type micro-motion base suitable for a laser line projector according to claim 1, characterized in that: A contact ring extends below the tray, and the outer wall of the bearing is interference-fitted with the inner wall of the contact ring.

3. The simple bearing-type micro-motion base suitable for a laser line projector according to claim 2, characterized in that: The inner wall of the contact ring is provided with a limiting convex strip, and the upper end of the bearing abuts against the limiting convex strip.

4. The simple bearing-type micro-motion base suitable for a laser line projector according to claim 1, characterized in that: A stop ring is distributed on the outer edge of the tray, the periphery of the fine-motion gear contacts the stop ring, a limit ring is distributed on the storage space, a contact boss is provided on the lower surface of the fine-motion gear, and the contact boss contacts the limit ring.

5. The simple bearing-type micro-motion base suitable for a laser line projector according to claim 4, characterized in that: The outer periphery of the micro-motion gear and the space between the stop ring are filled with grease.

6. The simple bearing-type micro-motion base suitable for a laser line projector according to claim 1, characterized in that: The adjustment device includes a micro-motion rod movably inserted into the base body, the middle section of the micro-motion rod is a screw structure, the screw structure is engaged with the micro-motion gear, and hand wheels are installed at both ends of the micro-motion rod through locking screws.

7. The simple bearing-type micro-motion base suitable for a laser line projector according to claim 6, characterized in that: Both ends of the micro-movement rod are connected to the hand wheel through washers, and the outer surface of the hand wheel is distributed with a plurality of anti-slip convex points.

8. The simple bearing-type micro-motion base suitable for a laser line projector according to claim 7, characterized in that: The base body is provided with a waist-shaped hole corresponding to the insertion position of the micro-movement rod.

9. The simple bearing-type micro-motion base suitable for a laser line projector according to claim 1, characterized in that: The gap eliminating device includes a screw assembly distributed in a mirror image in the receiving space, a pull rod spring is passed through the screw assembly, and one end of the pull rod spring is sleeved on the adjusting device.

10. The simple bearing-type micro-motion base suitable for a laser line projector according to claim 1, characterized in that: A plurality of countersunk screws are connected to the guide column, and the wide sides of the countersunk screws are engaged with the upper end surface of the bearing.

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