Position adjustment device

Abstract

The present invention discloses a position adjustment device, comprising a lower fixing mechanism (1), an upper fixing mechanism (2), a lower adjustment mechanism (3) and an upper adjustment mechanism (4), wherein the upper fixing mechanism (2) and the lower fixing mechanism (1) are arranged in correspondence with each other, the lower adjustment mechanism (3) is rotatable, the upper adjustment mechanism (4) is telescopic, and the upper adjustment mechanism (4) is arranged around the lower fixing mechanism (1). The present invention is used for position adjustment between different components in a product.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and in particular to a position adjustment device capable of adjusting the relative positions of various components in a product. Background Art

[0002] Many products have complex structures, where the components move relative to each other or are easily offset. Before the final screws are fixed, the components must be adjusted or calibrated, otherwise they cannot be used normally. This is the case with the engine variable valve timing (VVT). At present, the methods for adjusting or calibrating the positions of the components in these products are mainly manual adjustments, and sometimes some auxiliary tools for angle measurement and displacement measurement are used. The existing methods are time-consuming and labor-intensive, and the manual adjustment accuracy is not high, resulting in a high number of defective products. Summary of the invention

[0003] The technical problem solved by the present invention is to provide a device for automatically completing the position adjustment or calibration of various components in a complex product.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a position adjustment device, including a lower fixing mechanism, an upper fixing mechanism, a lower adjustment mechanism and an upper adjustment mechanism, the upper fixing mechanism and the lower fixing mechanism are arranged correspondingly up and down, the lower adjustment mechanism can be rotatably arranged, the upper adjustment mechanism can be telescopically arranged, and the upper adjustment mechanism is arranged around the lower fixing mechanism.

[0005] Furthermore, the lower adjustment mechanism includes a rotating structure and a driving structure, the rotating structure is coaxially arranged with the lower fixing mechanism, and the driving structure drives the rotating structure to rotate; the driving structure includes a motor, a torque sensor and a driving gear, the motor drives the driving gear to rotate, and the torque sensor controls the rotation angle of the driving gear; a driven rack is arranged at one end of the rotating structure, and the driving gear is meshed with the driven rack.

[0006] Furthermore, an arc-shaped friction block is arranged at the other end of the rotating structure relative to the driven rack; the lower adjustment mechanism also includes an angle encoder, and the angle encoder is provided with a friction wheel; the arc-shaped friction block frictionally drives the friction wheel to rotate.

[0007] Furthermore, the upper adjustment mechanism includes a first positioning structure, and the first positioning structure is a positioning pin telescopically arranged on the lower fixing mechanism.

[0008] Furthermore, the upper adjustment mechanism also includes a second positioning structure, and the second positioning structure is a positioning block telescopically arranged on the lower fixing mechanism.

[0009] Furthermore, the upper adjustment mechanism also includes a third positioning structure, and the third positioning structure is an adjustment hook telescopically arranged on the lower fixing mechanism.

[0010] Furthermore, the upper fixing mechanism comprises a plurality of fixing blocks, each of which is distributed along a circle and is retractable.

[0011] Furthermore, each of the fixed blocks can rotate synchronously.

[0012] Furthermore, a lifting structure is provided on the lower fixing mechanism.

[0013] Furthermore, an electric screwdriver is arranged above the upper fixing mechanism, and the fixing mechanism is a structure with a middle opening.

[0014] The beneficial effects achieved by the present invention are mainly as follows: a lower adjustment mechanism for rotation adjustment is set, and a torque sensor and an angle encoder are set, so that the product parts can be rotated and adjusted according to the set rotation angle, and the adjusted angle can be detected to confirm whether it is adjusted in place, thereby achieving high-precision rotation adjustment; a first positioning structure, a second positioning structure, and a third positioning structure are set, and the position of the active parts of the product can be adjusted in a variety of ways such as pin positioning adjustment, positioning block push adjustment, and adjustment hook pull adjustment, thereby meeting the different adjustment requirements of different parts of complex products and being suitable for more products; an arc groove is set on the upper fixing mechanism, so that the fixing block can be set at different positions, facilitating the fixing needs of products with different shapes; a lifting structure is set, and the active parts of the product can also be lifted and adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a position adjustment device in Embodiment 1 of the present invention;

[0016] Figure 2 For the embodiment of the present invention Figure 1 Enlarged view of part A in the middle;

[0017] Figure 3 It is a structural schematic diagram of the lower adjustment mechanism in the first embodiment of the present invention;

[0018] Figure 4 is a structural schematic diagram of a first positioning structure in Embodiment 1 of the present invention;

[0019] Figure 5 is a structural schematic diagram of a second positioning structure in Embodiment 1 of the present invention;

[0020] Figure 6 is a structural schematic diagram of a third positioning structure in Embodiment 1 of the present invention;

[0021] Figure 7It is a structural schematic diagram of the upper fixing mechanism in the first embodiment of the present invention;

[0022] Explanation of the accompanying drawings: 1-lower fixing mechanism, 2-upper fixing mechanism, 21-fixing block, 211-telescopic driving cylinder, 22-arc groove, 3-lower adjusting mechanism, 31-rotating structure, 311-driven rack, 312-arc friction block, 32-driving structure, 321-motor, 322-torque sensor, 323-driving gear, 33-angle encoder, 331-friction wheel, 4-upper adjusting mechanism, 41-first positioning structure, 411-positioning pin, 412-first positioning cylinder, 42-second positioning structure, 421-positioning block, 422-second positioning cylinder, 43-third positioning structure, 431-adjusting hook, 432-third positioning cylinder, 5-electric screwdriver, 6-frame.

[0023] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The same or similar numbers correspond to the same or similar parts. The terms describing the positional relationship in the drawings are only used for illustrative purposes and should not be construed as limitations on this patent. DETAILED DESCRIPTION

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Embodiment 1

[0026] See also Figures 1 to 7 A position adjustment device includes a lower fixing mechanism 1, an upper fixing mechanism 2, a lower adjustment mechanism 3 and an upper adjustment mechanism 4. The lower fixing mechanism 1 and the upper fixing mechanism 2 are used to fix the product to be adjusted, and the lower adjustment mechanism 3 and the upper adjustment mechanism 4 are used to adjust the positions of different components of the product. The upper fixing mechanism 2 and the lower fixing mechanism 1 are arranged correspondingly up and down. The lower fixing mechanism 1 extends from the hollow part of the lower adjustment mechanism 3, and fixes the product at the bottom and the top respectively by the upper fixing mechanism 2, so that the lower fixing mechanism 1 can fix the position standard parts inside the product, and the upper fixing mechanism 2 fixes the upper position standard parts of the product, and the positions of other components are adjusted based on these parts. The lower adjustment mechanism 3 can be rotatably arranged, so as to correct the rotating parts of the product by rotating a certain angle. The upper adjustment mechanism 4 can be telescopically arranged, and the upper adjustment mechanism 4 is arranged around the lower fixing mechanism 1, so as to adjust the horizontal position of the components in the product from the surrounding.

[0027] See also Figure 3The lower adjustment mechanism 3 includes a rotating structure 31 and a driving structure 32, and the driving structure 32 drives the rotating structure 31 to rotate; the rotating structure 31 is coaxially arranged with the lower fixing mechanism 1, so that the rotating part of the product can be adjusted by rotating the rotating structure 31 of the lower adjustment mechanism 3. The driving structure 32 includes a motor 321, a torque sensor 322 and a driving gear 323, and the motor 321 drives the driving gear 323 to rotate, and the torque sensor 322 controls the rotation angle of the driving gear 323, such as the motor 321, the torque sensor 322 and the driving gear 323 can be coaxially arranged, and the torque sensor 322 is arranged at the connection position between the motor 321 and the driving gear 323, so that the torque sensor 322 can control the driving gear 323 to rotate an angle according to the set parameters. A driven rack 311 is disposed at one end of the rotating structure 31, and the driving gear 323 is meshed with the driven rack 311, so that the rotating structure 31 also rotates a corresponding angle along with the driving gear 323, and finally drives the rotating parts of the product to rotate a corresponding angle, thereby realizing the angle calibration of the rotating parts on the product.

[0028] See also Figure 1 , the other end of the rotating structure 31 relative to the driven rack 311 is provided with an arc-shaped friction block 312; the lower adjustment mechanism 3 also includes an angle encoder 33, and the angle encoder 33 is provided with a friction wheel 331; the arc-shaped friction block 312 frictionally drives the friction wheel 331 to rotate. When the rotating structure 31 adjusts the rotation of the rotating part of the product, it will drive the friction wheel 331 to rotate. The angle encoder 33 can test the rotation angle of the friction wheel 331, determine the angle of the rotating structure 31, and finally determine whether the rotating part of the product is rotated in place, and feedback to the torque sensor 322 or the background monitoring device.

[0029] See also Figure 4 The upper adjustment mechanism 4 includes a first positioning structure 41, which is a positioning pin telescopically arranged on the lower fixing mechanism 1, specifically including a positioning pin 411 and a first positioning cylinder 412. In addition, a mounting frame for the first positioning structure 41 can be provided, the mounting frame is fixed on the lower fixing mechanism 1, the first positioning cylinder 412 is installed on the mounting frame, and the positioning pin 411 is installed on the piston rod of the first positioning cylinder 412, so that telescopic movement can be achieved. In order to make the telescopic movement of the positioning pin 411 more precise, a slide rail can be provided on the mounting frame, and a slider can be provided on the positioning pin 411. The positioning pin 411 is slidably arranged on the mounting frame through the slider and telescopically arranged on the first positioning cylinder 412. During operation, the positioning pin 411 can be inserted into a component with a hole in the product, and the position of the component can be adjusted by telescopic movement of the positioning pin 411.

[0030] See also Figure 5, the upper adjustment mechanism 4 also includes a second positioning structure 42, which is a positioning block telescopically arranged on the lower fixing mechanism 1, specifically including a positioning block 421 and a second positioning cylinder 422. A mounting frame of the second positioning structure 42 can also be arranged as needed, the mounting frame is fixed on the lower fixing mechanism 1, the second positioning cylinder 422 is mounted on the mounting frame, and the positioning block 421 is mounted on the piston rod of the second positioning cylinder 422, so as to achieve telescopic movement. In order to make the positioning block 421 more precise in telescopic movement, a slide rail can be arranged on the mounting frame, a slider can be arranged on the positioning block 421, and the positioning block 421 is slidably arranged on the mounting frame through the slider and telescopically arranged on the second positioning cylinder 422. The positioning block 421 can be set to have an appearance consistent with the appearance of the corresponding component of the position adjustment product as needed, so that the component can be fixed. For example, the positioning block 421 is set to be tooth-shaped, which can fix the tooth-shaped product and telescopically push it to a fixed position.

[0031] See also Figure 6 The upper adjustment mechanism 4 also includes a third positioning structure 43. The third positioning structure 43 is an adjustment hook telescopically arranged on the lower fixing mechanism 1, specifically including an adjustment hook 431 and a third positioning cylinder 432. A mounting frame of the third positioning structure 43 can also be arranged as needed. The mounting frame is fixed on the lower fixing mechanism 1, and the third positioning cylinder 432 is mounted on the mounting frame. The adjustment hook 431 is mounted on the piston rod of the third positioning cylinder 432, and telescopic movement can be achieved. In order to adjust the hook 431 to be more precise in telescopic movement, a slide rail can be arranged on the mounting frame, and a slider can be arranged on the adjustment hook 431. The adjustment hook 431 is slidably arranged on the mounting frame through the slider and telescopically arranged on the third positioning cylinder 432. The adjustment hook 431 is a hook-shaped structure that can hook the movable part of the product and adjust the position of the part by telescopic pulling.

[0032] The number of the first positioning structure 41, the second positioning structure 42 and the third positioning structure can be set as needed. If there are many movable parts in the product, the number can be increased. If it is a large product, the number can also be increased, and a component can be adjusted through multiple positioning structures. In addition, the distribution of the first positioning structure 41, the second positioning structure 42 and the third positioning structure can also be set according to the needs of the product. For example, a square product can be installed with a square peripheral layout of a square product.

[0033] See also Figure 1The upper fixing mechanism 2 includes a plurality of fixing blocks 21, each of which is distributed in a circle and is retractable. Specifically, a telescopic drive cylinder 221 can be provided on the fixing mechanism 2, and the fixing block 21 is installed on the piston rod of the telescopic drive cylinder 221. During operation, each telescopic drive cylinder 221 drives the fixing block 21 thereon to hold the product from all sides, thereby completing the fixing of the product. In order to facilitate the appearance requirements of products of different shapes and sizes, an arc groove 22 can also be provided on the fixing mechanism 2, and each telescopic drive cylinder 221 together with the fixing block 21 can be installed at any position in the arc groove, so that each fixing block 21 can rotate synchronously. This meets the adjustment needs of fixing products in different orientations, and adapts to more products.

[0034] The lower fixing mechanism 1 is provided with a lifting structure, which can specifically be lifted by a cylinder, so as to facilitate the position adjustment of the components that need to be lifted before they can be adjusted in the product that needs to be adjusted.

[0035] See also Figure 1 An electric screwdriver 5 is also arranged above the upper fixing mechanism 2. The fixing mechanism 2 is a structure with a middle opening, which facilitates the electric screwdriver 5 to extend to the position of the product to screw the product to achieve final tightening. The electric screwdriver 5 can be set in multiple numbers according to the number and position of the screws on the product, and the screws can be locked at the same time in one step, which is highly efficient.

[0036] The working process of the position adjustment device of the present invention is as follows: first, the product to be adjusted is placed on the lower fixing mechanism 1 through a manipulator or other loading equipment; then the lifting structure is lifted up, and the upper fixing mechanism 2 presses down to hold the product tightly through the fixing block and fixes the parts of the product that do not need to be adjusted by pressing down and working together with the lower fixing mechanism 1; then the lower adjustment mechanism 3 and the upper adjustment mechanism 4 begin to adjust the position of each component of the product to the set position; after adjustment, tighten each component by screwing in screws with an electric screwdriver and then take it out.

[0037] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A position adjustment device, characterized in that: The device comprises a lower fixing mechanism (1), an upper fixing mechanism (2), a lower adjustment mechanism (3) and an upper adjustment mechanism (4), wherein the upper fixing mechanism (2) and the lower fixing mechanism (1) are arranged correspondingly in the upper and lower parts, the lower adjustment mechanism (3) is rotatable, the upper adjustment mechanism (4) is telescopic, and the upper adjustment mechanism (4) is arranged around the lower fixing mechanism (1); The lower adjustment mechanism (3) comprises a rotating structure (31) and a driving structure (32); the rotating structure (31) is coaxially arranged with the lower fixing mechanism (1); the driving structure (32) drives the rotating structure (31) to rotate; the driving structure (32) comprises a motor (321), a torque sensor (322) and a driving gear (323); the motor (321) drives the driving gear (323) to rotate; the torque sensor (322) controls the rotation angle of the driving gear (323); a driven rack (311) is arranged at one end of the rotating structure (31); the driving gear (323) meshes with the driven rack (311); and the rotating structure (31) is used for calibrating the angle of rotating parts on a product; An arc-shaped friction block (312) is provided at the other end of the rotating structure (31) relative to the driven rack (311); the lower adjustment mechanism (3) further comprises an angle encoder (33), and the angle encoder (33) is provided with a friction wheel (331); the arc-shaped friction block (312) frictionally drives the friction wheel (331) to rotate; The upper fixing mechanism (2) comprises a plurality of fixing blocks (21), each of the fixing blocks (21) being distributed along a circumference and being retractable; The upper adjustment mechanism (4) comprises: A first positioning structure (41), the first positioning structure (41) being a positioning pin telescopically arranged on the lower fixing mechanism (1); A second positioning structure (42), the second positioning structure (42) being a positioning block telescopically arranged on the lower fixing mechanism (1); A third positioning structure (43), the third positioning structure (43) being an adjustment hook telescopically arranged on the lower fixing mechanism (1); The position of the product's movable parts can be adjusted in a variety of ways, such as positioning adjustment with positioning pins, pushing adjustment with positioning blocks, and pulling adjustment with adjustment hooks.

2. The position adjustment device according to claim 1, characterized in that: The fixed blocks (21) can rotate synchronously.

3. The position adjustment device according to claim 1, characterized in that: The lower fixing mechanism (1) is provided with a lifting structure.

4. The position adjustment device according to any one of claims 1 to 3, characterized in that: An electric screwdriver (5) is also provided above the upper fixing mechanism (2), and the fixing mechanism (2) is a structure with a middle opening.

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