Anti-eccentricity concentric shaft positioning device

Abstract

The utility model belongs to the technical field of concentric shaft positioning, and discloses an anti-eccentricity concentric shaft positioning device which comprises a working table, a positioning adjusting assembly is installed on the surface of the working table and comprises first arc-shaped plates, and a plurality of first arc-shaped plates are arranged on the surface of the working table. An adjusting plate is installed on the bottom face of the first arc-shaped plate, a sliding groove matched with the adjusting plate is formed in the surface of the workbench, the first arc-shaped plate and the workbench are connected in a sliding mode through the adjusting plate and the sliding groove, and a positioning rod is installed in the center of the first arc-shaped plate. A through hole is formed in the surface of the positioning rod, a connecting rod is connected into the through hole in a sliding mode, and one end of the connecting rod penetrates through the positioning rod, extends to the outer portion of the positioning rod and is connected with a second arc-shaped plate arranged outside the positioning rod. The situation that the positioning device cannot adapt to concentric shafts of different sizes is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of concentric shaft positioning technology, specifically an anti-eccentric concentric shaft positioning device. Background Technology

[0002] A shaft is a cylindrical object that passes through the center of a bearing, wheel, or gear, although some are square. A shaft is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. It is generally a metal rod, with different diameters for each section. Rotating parts in a machine are mounted on shafts. Bearings are an important component in modern machinery; their main function is to support rotating mechanical bodies, reduce the coefficient of friction during movement, and ensure rotational accuracy.

[0003] For concentric shaft assemblies composed of shaft parts and bushing parts, the positioning and clamping between the parts is a prerequisite for their normal use. Some concentric shaft assemblies have strict requirements for their circumferential relative position during use, requiring that the circumferential relative position be within a certain error range after use. Therefore, it is of great significance to design a device that ensures the accuracy, fixation and visibility of the relative position between the parts of such mechanisms after use.

[0004] When machining concentric shafts, positioning is generally required. However, in standard positioning and clamping, it is impossible to adjust the positioning according to the different sizes of concentric shafts. This results in different concentric shafts becoming eccentric during machining due to the inability to adapt to the size. Furthermore, the inner ring cannot be positioned during the positioning process, leading to instability in the positioning of the concentric shaft.

[0005] Therefore, an anti-eccentric concentric shaft positioning device is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides an anti-eccentricity concentric shaft positioning device, which has the advantage of being able to position concentric shafts of different sizes, thus avoiding the problem of the positioning device being unable to adapt to different concentric shafts and causing eccentricity during processing.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-eccentric concentric shaft positioning device, comprising a worktable, wherein a positioning adjustment component is mounted on the surface of the worktable;

[0008] The positioning adjustment assembly includes an arc-shaped plate 1. Multiple arc-shaped plates 1 are arranged on the surface of the worktable. An adjustment plate is installed on the bottom surface of the arc-shaped plate 1. A sliding groove adapted to the adjustment plate is formed on the surface of the worktable. The arc-shaped plate 1 and the worktable are slidably connected through the adjustment plate and this sliding groove. A positioning rod is installed at the center of the arc-shaped plate 1. A connecting rod is slidably connected within a through hole formed on the surface of the positioning rod. One end of the connecting rod passes through the positioning rod and extends to the outside of the positioning rod, connecting with an arc-shaped plate 2 arranged outside the positioning rod. An extension assembly is installed on the surface of the positioning rod.

[0009] Preferably, a guide rod is slidably connected in the through hole on the surface of the adjustment plate, both ends of the guide rod passing through the adjustment plate and installed in the slide groove on the surface of the worktable.

[0010] Preferably, a return spring is sleeved on the surface of the guide rod, one end of the return spring is connected to the adjusting plate, and the other end of the return spring is installed in a groove opened on the surface of the worktable.

[0011] Preferably, the original positions of the plurality of said arc-shaped plates form a "circular" structure to accommodate the diameter of the concentric shaft.

[0012] Preferably, the extension assembly includes a hydraulic rod, a hydraulic rod is installed inside the positioning rod, a support plate is installed at the telescopic end of the hydraulic rod, four inclined plates are installed at the bottom of the support plate, and an inclined plate is installed at the other end of the connecting rod, wherein the inclined plates are adapted to each other.

[0013] Preferably, a second return spring is sleeved on the surface of the connecting rod, one end of the second return spring is connected to the second arc-shaped plate, and the other end of the second return spring is mounted on the surface of the positioning rod.

[0014] Preferably, the four arc-shaped plates are evenly distributed around the positioning rod to abut against the inner ring of the concentric shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model features a worktable. An arc-shaped plate drives an adjusting plate to slide on the surface of a guide rod, causing the arc-shaped plate to abut against the outer ring of the concentric shaft. Then, a connecting rod drives an arc-shaped plate to move, causing the arc-shaped plate to abut against the inner ring of the concentric shaft. At this point, the arc-shaped plates 1 and 2 simultaneously position the inner and outer rings of the concentric shaft, avoiding the inability to position the inner ring and thus preventing instability in the positioning of the concentric shaft. This further improves the positioning effect of the concentric shaft and allows for positioning adjustment according to concentric shafts of different sizes.

[0017] 2. This utility model features a workbench. By activating the hydraulic rod, the hydraulic rod drives the connecting rod through the support plate and inclined plate to adjust its position, thus facilitating operation by the staff and making it easier to position the inner ring of the concentric shaft, further improving the effectiveness of the device during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the workbench of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the arc-shaped plate and the adjusting plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the positioning rod of this utility model;

[0022] Figure 5 This is a schematic diagram of the inclined plate one and inclined plate two of this utility model.

[0023] In the diagram: 1. Workbench; 2. Positioning and adjustment assembly; 21. Arc plate one; 22. Adjustment plate; 23. Positioning rod; 24. Connecting rod; 25. Arc plate two; 26. Guide rod; 27. Return spring one; 3. Extension assembly; 31. Hydraulic rod; 32. Support plate; 33. Inclined plate one; 34. Inclined plate two; 35. Return spring two. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 5 As shown, this utility model provides an anti-eccentric concentric shaft positioning device, including a worktable 1, on the surface of which a positioning adjustment component 2 is installed;

[0026] The positioning adjustment assembly 2 includes an arc plate 21. Multiple arc plates 21 are provided on the surface of the worktable 1. An adjustment plate 22 is installed on the bottom surface of the arc plate 21. A sliding groove adapted to the adjustment plate 22 is opened on the surface of the worktable 1. The arc plate 21 and the worktable 1 are slidably connected through the adjustment plate 22 and this sliding groove. A positioning rod 23 is installed at the center of the arc plate 21. A connecting rod 24 is slidably connected in the through hole opened on the surface of the positioning rod 23. One end of the connecting rod 24 passes through the positioning rod 23 and extends to the outside of the positioning rod 23, and is connected to the arc plate 25 set outside the positioning rod 23. An extension assembly 3 is installed on the surface of the positioning rod 23.

[0027] like Figures 1 to 5 As shown, a guide rod 26 is slidably connected in the through hole opened on the surface of the adjusting plate 22. Both ends of the guide rod 26 pass through the adjusting plate 22 and are installed in the slide groove opened on the surface of the worktable 1. This allows the adjusting plate 22 to perform position guidance during the adjustment process of the arc plate 21, and avoids the adjusting plate 22 from shifting position during the movement.

[0028] Furthermore, a return spring 27 is fitted onto the surface of the guide rod 26. One end of the return spring 27 is connected to the adjusting plate 22, and the other end of the return spring 27 is installed in a groove on the surface of the worktable 1, thereby enabling the adjustment plate 22 to be reset, further improving the effectiveness of the device.

[0029] It is worth noting that the original positions of multiple arc plates 21 form a "circular" structure to accommodate the diameter of the concentric shaft, thereby enabling it to accommodate most common sizes of concentric shafts, reducing unnecessary steps and further improving the adaptability of the device.

[0030] like Figures 1 to 5 As shown, the extension assembly 3 includes a hydraulic rod 31. The hydraulic rod 31 is installed inside the positioning rod 23. A support plate 32 is installed at the telescopic end of the hydraulic rod 31. Four inclined plates 33 are installed at the bottom of the support plate 32. An inclined plate 34 is installed at the other end of the connecting rod 24. The inclined plates 33 and 34 are adapted to each other.

[0031] like Figures 1 to 5 As shown, a second return spring 35 is sleeved on the surface of the connecting rod 24. One end of the second return spring 35 is connected to the second arc plate 25, and the other end of the second return spring 35 is installed on the surface of the positioning rod 23, so that the position of the second arc plate 25 can be reset, avoiding manual operation by the operator.

[0032] It is worth emphasizing that the four arc-shaped plates 25 are evenly distributed around the positioning rod 23 to abut against the inner ring of the concentric shaft, thereby enabling the inner ring of the concentric shaft to be positioned and avoiding instability in the positioning of the concentric shaft due to the inability to position the inner ring.

[0033] The structure of the electric motor is existing technology and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motor in this utility model is common knowledge in the field, and its working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motor will not be explained in detail.

[0034] Working principle and process: With a worktable 1, when machining and positioning the concentric shaft, the concentric shaft is first placed on the surface of the positioning rod 23. The concentric shaft is then placed on the surface of the worktable 1. When the original position of the arc-shaped plate 21 forms a "circular" structure that matches, the arc-shaped plate 21 positions the outer surface of the concentric shaft. When the concentric shaft is slightly larger, the arc-shaped plate 21 is moved, causing the adjusting plate 22 to slide on the surface of the guide rod 26. The guide rod 26 guides the movement of the adjusting plate 22, preventing positional deviation during movement. When the adjusting plate 22 moves, it compresses the return spring 27, causing it to deform and reset its position. This facilitates operation and positions the outer ring of the concentric shaft. After the concentric shaft is positioned, the hydraulic rod 31 is activated. The extension end of the hydraulic rod 31 drives the support... The support plate 32 moves downwards, and during this downward movement, the support plate 32 drives the inclined plate 33 to press the inclined plate 34. At this time, the inclined plate 34 drives the connecting rod 24 to move, so that the connecting rod 24 slides in the through hole on the surface of the positioning rod 23. During the extension of the connecting rod 24, the return spring 35 deforms, and the return spring 35 can reset the position of the connecting rod 24, thereby further improving the use effect of the device. During the sliding process, the connecting rod 24 drives the arc plate 25 to abut against the inner ring of the concentric shaft. The four arc plates 25 are evenly distributed around the positioning rod 23 to abut against the inner ring of the concentric shaft, thereby positioning the inner ring of the concentric shaft. At this time, the arc plate 21 and the arc plate 25 simultaneously position the inner and outer rings of the concentric shaft, avoiding the inability to position the inner ring, which would cause instability in the positioning of the concentric shaft. This further improves the positioning effect of the concentric shaft and allows for positioning adjustment according to concentric shafts of different sizes.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Eccentricity-proof concentric shaft positioning device comprising a worktable (1), characterized in that: The surface of the workbench (1) is provided with a positioning adjusting assembly (2); The positioning adjusting assembly (2) comprises an arc-shaped plate one (21), the surface of the workbench (1) is provided with a plurality of arc-shaped plate ones (21), the bottom surface of the arc-shaped plate one (21) is provided with an adjusting plate (22), the surface of the workbench (1) is provided with a sliding groove matched with the adjusting plate (22), the arc-shaped plate one (21) and the workbench (1) are connected through the adjusting plate (22) and the sliding groove, the central position of the arc-shaped plate one (21) is provided with a positioning rod (23), the through hole in the surface of the positioning rod (23) is slidably connected with a connecting rod (24), one end of the connecting rod (24) penetrates through the positioning rod (23) and extends to the outside of the positioning rod (23) and is connected with an arc-shaped plate two (25) arranged outside the positioning rod (23), and the surface of the positioning rod (23) is provided with an extension assembly (3).

2. An eccentricity-preventing concentric shaft positioning device according to claim 1, characterized in that: The through hole in the surface of the adjusting plate (22) is slidably connected with a guide rod (26), both ends of the guide rod (26) penetrate through the adjusting plate (22) and are arranged in the sliding groove in the surface of the workbench (1).

3. An eccentricity-preventing concentric shaft positioning device according to claim 2, characterized in that: The surface of the guide rod (26) is sleeved with a reset spring one (27), one end of the reset spring one (27) is connected with the adjusting plate (22), and the other end of the reset spring one (27) is arranged in the sliding groove in the surface of the workbench (1).

4. An eccentricity-preventing concentric shaft positioning device according to claim 3, characterized in that: The original positions of the plurality of arc-shaped plate ones (21) form a "circular" structure with the same diameter as the concentric shaft.

5. An eccentricity-preventing concentric shaft positioning device according to claim 4, characterized in that: The extension assembly (3) comprises a hydraulic rod (31), the inside of the positioning rod (23) is provided with the hydraulic rod (31), the telescopic end of the hydraulic rod (31) is provided with a supporting disc (32), the bottom of the supporting disc (32) is provided with four inclined plates one (33), the other end of the connecting rod (24) is provided with an inclined plate two (34), and the inclined plate one (33) is matched with the inclined plate two (34).

6. An eccentricity-preventing concentric shaft positioning device according to claim 1, characterized in that: The surface of the connecting rod (24) is sleeved with a reset spring two (35), one end of the reset spring two (35) is connected with the arc-shaped plate two (25), and the other end of the reset spring two (35) is arranged on the surface of the positioning rod (23).

7. An eccentricity-preventing concentric shaft positioning device according to claim 6, characterized in that: The four arc-shaped plate twos (25) are uniformly distributed around the positioning rod (23) and are used for abutting against the inner ring of the concentric shaft.

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