A bidirectional fine adjustment device

Abstract

The present application relates to the technical field of telescopic adjustment, and provides a bidirectional fine adjustment device, which comprises a frame body and a guide disc type bearing seat structure, the frame body is provided with a hole through which a target workpiece passes, the guide disc type bearing seat structure comprises a driving ring, a guide base, a driven ring rotatable in the inner ring of the guide base and a limiting assembly for limiting rotation of the driving ring, the driven ring is provided with a first thread arranged along the direction of its rotation axis, the driving ring is provided with a second thread threadedly connected with the first thread, the guide base is installed at the hole of the frame body and the inner ring is through the hole, the target workpiece passes through the inner ring and the hole, and a first part of the target workpiece is installed on the driving ring, and a second part of the target workpiece is located outside the hole. The present application can realize relative bidirectional adjustment of the first part and the second part in the target workpiece by cooperation of the guide base, the driving ring and the driven ring, and the problem of large size and installation failure of the traditional structure is solved because the present application omits the structure such as screw rod guide rail.

Description

Technical Field

[0001] This invention relates to the field of telescopic adjustment technology, specifically a bidirectional fine-tuning device. Background Technology

[0002] Currently, in fields such as process equipment, precision machinery, speed reducers, and optical instruments, when fine-tuning the relative movement of internal parts of complex-shaped workpieces is required, adjustment devices are typically not added. Adjustments are made manually and repeatedly, followed by visual inspection or experimentation to determine the rationality of the final position. Alternatively, adjustment devices may be added, but these often use linear guides, linear bearings, and guide shafts for guidance, along with ball screw drives and power drives to achieve adjustment. Or, the adjustment device may be a high-cost, manually operated precision-machined screw drive. Manual adjustment is inefficient, and traditional adjustment devices are unsuitable for applications requiring adjustment of complex shapes and high axial space requirements due to their large structural dimensions. Summary of the Invention

[0003] The purpose of this invention is to provide a bidirectional fine-tuning device that can at least solve some of the defects in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a bidirectional fine-tuning device, comprising a frame and a guide disc bearing seat structure. The frame has a hole through which a target workpiece passes. The guide disc bearing seat structure includes a push ring, a guide base, a driven ring rotatable in the inner ring of the guide base, and a limiting component for restricting the rotation of the push ring. The driven ring has a first thread arranged along its rotation axis. The push ring has a second thread threadedly connected to the first thread. The guide base is installed at the hole in the frame, and the inner ring communicates with the hole. The target workpiece passes through the inner ring and the hole, and a first component of the target workpiece is installed on the push ring, while a second component of the target workpiece is located outside the hole.

[0005] Furthermore, it also includes a drive mechanism for driving the driven ring to rotate.

[0006] Furthermore, the driven ring includes a gear ring and a protruding edge disposed on the gear ring. The protruding edge protrudes in the same direction as the rotation axis of the driven ring. The first thread is disposed on the protruding edge, and the driving member of the driving mechanism meshes with the gear ring.

[0007] Furthermore, the driving component is a rotatable spindle, and the spindle has a gear structure that can mesh with the gear ring.

[0008] Furthermore, the drive mechanism also includes a first bearing, a second bearing, and a bearing housing. The first bearing and the second bearing are both sleeved on the main shaft, and both the first bearing and the second bearing are installed in the mounting positions reserved in the guide base. The bearing housing is installed in the mounting positions, and the mounting positions are in communication with the inner ring.

[0009] Furthermore, the first component of the target workpiece is mounted on the push ring via a limiting structure.

[0010] Furthermore, the limiting structure includes a ring structure composed of multiple sector plates, each sector plate having a screw hole, and the first component is fixed to the push ring by screwing screws into the threaded holes.

[0011] Furthermore, the guide base has a disassembly port for removing the sector plate.

[0012] Furthermore, a shaped washer is fitted onto the screw between the first component and the sector plate. The shaped washer includes an annular ring body and a protrusion extending outward from the ring body.

[0013] Furthermore, the disc bearing housing is provided with an air groove for external air to enter the inner ring.

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

[0015] 1. By using the combination of guide base, push ring and driven ring, the relative bidirectional adjustment of the first and second parts in the target workpiece can be achieved. Because it eliminates the need for structures such as lead screw and guide rail, it solves the problem of large size and inability to install traditional structures.

[0016] 2. The technology of combining threaded drive, guide and gear drive is adopted to minimize the installation space required.

[0017] 3. By using multiple handwheels for bidirectional quantitative fine-tuning, the problems of difficulty in quantitative adjustment and uncontrollable bidirectional adjustment caused by direct manual adjustment of parts are solved.

[0018] 4. The gear reduction design makes the overall device more labor-saving, with a small axial dimension and a simple fixing method.

[0019] 5. A disassembly port is provided on the guide base, which allows the sector plate to be replaced without disassembling the entire machine, thus improving work efficiency.

[0020] 6. Using irregularly shaped shims, only the protruding part can be used as a shim after rotation, while other parts of the ring body are left unsupported, which can avoid interference with other structures.

[0021] 7. An air groove is provided on the disc bearing housing, which allows air to enter the inner ring. When the driven ring rotates, the air can act as a lubricant. Compared with the traditional method of filling the bearing with lubricating oil or applying grease, it requires no maintenance and is simpler and more convenient. Attached Figure Description

[0022] Figure 1 A schematic diagram of a bidirectional fine-tuning device (with the target workpiece installed) provided in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the guide disc bearing seat structure and handwheel cooperation of a bidirectional fine-tuning device provided in an embodiment of the present invention;

[0024] Figure 3 for Figure 2 Exploded view;

[0025] Figure 4 for Figure 2 Vertical cross-sectional view;

[0026] In the attached drawings, the following labels are used: 1-base plate; 2-mounting plate; 3-guide disc bearing seat structure; 301-guide base; 302-driven ring; 303-main shaft; 304-first bearing; 305-second bearing; 306-pressure block; 307-push ring; 308-fan-shaped plate; 309-irregular shim; 310-screw; 311-screw one; 312-bearing seat; 313-handwheel; 314-air groove; 315-guide groove; 316-guide boss; 317-mounting position; 318-groove; 319-screw two; 4-target workpiece; 40-first component; 41-second component. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4This invention provides a bidirectional fine-tuning device, including a frame and a guide disc bearing seat structure 3. The frame has a hole through which a target workpiece 4 passes. The guide disc bearing seat structure 3 includes a push ring 307, a guide base 301, a driven ring 302 rotatable in the inner ring of the guide base 301, and a limiting component for restricting the rotation of the push ring 307. The driven ring 302 has a first thread arranged along its rotation axis. The push ring 307 has a second thread threadedly connected to the first thread. The guide base 301 is installed at the hole in the frame, and the inner ring communicates with the hole. The target workpiece 4 passes through the inner ring and the hole in sequence. The first component 40 of the target workpiece 4 is installed on the push ring 307, and the second component 41 of the target workpiece 4 is located outside the hole. In this embodiment, the cooperation of the guide base 301, the push ring 307, and the driven ring 302 enables relative bidirectional adjustment of the first component 40 and the second component 41 in the target workpiece 4. Because it eliminates the need for screw rods and guide rails, it solves the problem of large size and installation limitations inherent in traditional structures. Specifically, the frame may include a base plate 1 and a mounting plate 2. The mounting plate 2 is vertically mounted on the base plate 1 and has holes for the target workpiece 4 to pass through. Furthermore, the push ring 307, the guide base 301, and the driven ring 302 are all hollow designs. The driven ring 302 and the push ring 307 are both installed in the inner ring of the guide base 301, which has a slide for the driven ring 302 to rotate. In this way, the target workpiece 4 can pass through these components, facilitating the definition of the positions of the first component 40 and the second component 41 of the target workpiece 4. Here, the first component 40 and the second component 41 are relative. The first component 40 can be driven by the push ring 307 to move within a certain range (not completely disengaged), so it is defined as the first component 40. The second component 41 is not driven, so it is defined as the second component 41. The target workpiece 4 thus forms a structure with large dimensions at both ends and a small dimension in the middle. Both the push ring 307 and the driven ring 302 can be installed in the inner ring of the guide base 301, making the overall structure very compact and not occupying axial space. Through the rotation of the driven ring 302, and with the push ring 307 threadedly connected to the driven ring 302, when the rotation of the push ring 307 is restricted, the push ring 307 can make linear displacement along the direction of the thread arrangement. When the arrangement direction of the first thread and the second thread is defined, the movement direction of the push ring 307 can be controlled, thereby realizing the expansion and contraction fine adjustment of the target product.

[0029] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4It also includes a drive mechanism for rotating the driven ring 302. In this embodiment, the driven ring 302 can be rotated by the drive mechanism. The driven ring 302 includes a gear ring and a protruding edge provided on the gear ring. The direction of the protruding edge is consistent with the direction of the rotation axis of the driven ring 302. The first thread is provided on the protruding edge. The drive member of the drive mechanism meshes with the gear ring. The drive can be carried out by gear meshing, which can reduce the installation space and reduce the speed, making the overall device more labor-saving. Preferably, the driving component is a rotatable spindle 303, which has a gear structure that meshes with the gear ring. The driving mechanism further includes a first bearing 304, a second bearing 305, and a bearing housing 312. The first bearing 304 and the second bearing 305 are both sleeved on the spindle 303 and are both installed in the mounting positions 317 reserved in the guide base 301. The bearing housing is installed in the mounting positions 317, which communicate with the inner ring. The rotation of the geared spindle 303 can drive the driven ring 302 to rotate.

[0030] For further optimization of the above solution, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The driving component is driven to rotate via handwheel 313. In this embodiment, bidirectional quantitative fine-tuning is achieved by using handwheel 313, solving the problems of difficulty in quantitative adjustment and uncontrollable bidirectional adjustment caused by direct manual adjustment of parts. Preferably, the handwheel 313 has a wrench slot to facilitate the increase of torque by the wrench, driving the main shaft 303 to rotate. Of course, in addition, a motor can also be used for driving, and this embodiment does not limit this.

[0031] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4The first component 40 of the target workpiece 4 is mounted on the push ring 307 via a limiting structure. In this embodiment, the first component 40 of the target workpiece 4 can be fastened to the push ring 307 by means of the limiting structure. Preferably, the limiting structure includes a ring structure composed of multiple sector plates 308, each sector plate 308 having a screw hole. The first component 40 is screwed into the threaded hole by a screw 310 and fixed to the push ring 307. A shaped washer 309 is fitted on the screw 310 between the first component 40 and the sector plate 308. In this embodiment, there can be three sector plates 308, which form a ring. The size of the three sector plates 308 matches that of the push ring 307. The ring is placed on the push ring 307, and the first component 40 can be fastened to the push ring 307 by the cooperation of screws 310 and irregularly shaped washers 309. The irregularly shaped washers include an annular body and a protruding part protruding outward from the annular body. Through an eccentric design, similar to the structure of a cam, after rotation, only the protruding part can be used as a washer, and the other parts of the annular body are left unused, which can avoid interference with other structures. Preferably, the guide base has a disassembly port for removing the sector plates. In this embodiment, providing this disassembly port to the guide base facilitates the removal of the sector plates, allowing them to be replaced without disassembling the entire machine. The sector plates have threaded holes for easy installation. The size of the sector plates can be selected according to the actual situation.

[0032] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The holes and the guide disc bearing housing structure are multiple and configured in a one-to-one correspondence. In this embodiment, as... Figure 1 As shown, two target workpieces 4 are displayed, with the upper target workpiece 4 in a state where the guide disc bearing housing structure is not configured.

[0033] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The guide base 301 is provided with an air groove 314 for external air to enter the inner ring. In this embodiment, the air groove 314 is designed to allow air to enter the inner ring. When the driven ring 302 rotates, the air can act as a lubricant. Compared with the traditional method of using internal lubricating oil or applying grease to the bearing, this method requires no maintenance and is simpler and more convenient. The air groove 314 can be formed by a recess in the inner ring wall, extending through the edge, to facilitate the entry of external air.

[0034] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The limiting component includes a guide groove 315 disposed on the guide base 301 and a guide boss 316 that can be inserted into and slide in the guide groove 315. The guide boss 316 is disposed on the push ring 307, and both the guide boss 316 and the guide groove 315 extend along the rotation axis of the driven ring 302. In this embodiment, the limiting method uses the guide groove 315 and the guide boss 316. The guide boss 316 can be inserted into the guide groove 315 and slide in the guide groove 315, thus serving both a guiding function and a function of limiting the rotation of the push ring 307. Preferably, the guide boss 316 adopts a semi-cylindrical structure.

[0035] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The guide base 301 is provided with a mounting position 317 for mounting an external drive mechanism, and the mounting position 317 communicates with the inner ring. A bearing is installed in the mounting position 317. The mounting position 317 is located at one corner of the square guide base 301. In this embodiment, the guide base 301 can be square in shape, with a circular hole at its center forming the inner ring. This allows space along its edges for other structural designs, such as designing the mounting position 317 for bearing mounting; the mounting position 317 can be a circular groove.

[0036] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The system also includes a pressure block 306 for limiting the driven ring 302, which is disposed in a groove 318 reserved in the guide base 301. There are two pressure blocks 306 and two grooves 318, each located at a diagonal corner of the square guide base 301. In this embodiment, to prevent the driven ring 302 from rotating unrestricted, pressure blocks 306 are used to abut against the driven ring 302 and limit its movement. The two pressure blocks 306 are arranged opposite each other, confining the driven ring 302 between them. The number of pressure blocks 306 can be selected according to actual conditions; this embodiment does not limit it. The grooves 318 for mounting the pressure blocks 306 are also designed on the edge of the square guide base 301, and their shape matches the shape of the pressure blocks 306. For example, if the pressure block 306 is square in this embodiment, the grooves 318 can also be designed as square grooves.

[0037] As an optimized solution for an embodiment of the present invention, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The push ring 307 and the guide base 301 are provided with several threaded holes to facilitate the installation of external drive mechanisms and products to be driven, and also to facilitate the installation of the guide base 301 on other components. Screw 1 311 and screw 2 319 are installed in these threaded holes.

[0038] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bidirectional fine-tuning device, characterized in that: The device includes a frame and a guide disc bearing housing structure. The frame has a hole through which a target workpiece passes. The guide disc bearing housing structure includes a push ring, a guide base, a driven ring rotatable within the inner ring of the guide base, and a limiting assembly for restricting the rotation of the push ring. The driven ring has a first thread arranged along its axis of rotation, and the push ring has a second thread threadedly connected to the first thread. The guide base is installed at the hole in the frame, and the inner ring communicates with the hole. The target workpiece passes through the inner ring and the hole, and a first component of the target workpiece is mounted on the push ring, while a second component of the target workpiece is located outside the hole. The first component of the target workpiece is mounted on the push ring via a limiting structure. The limiting structure includes a ring structure composed of multiple sector plates, each sector plate having a screw hole. The first component is screwed into the threaded hole and fixed to the push ring. The guide base has a disassembly port for removing the sector plates. A shaped washer is fitted on the screw between the first component and the sector plates. The shaped washer includes an annular ring body and a protrusion extending outward from the ring body. The disc bearing seat has an air groove for allowing external air to enter the inner ring. The device also includes a pressure block for limiting the driven ring, the pressure block being disposed in a groove reserved in the guide base.

2. The bidirectional fine-tuning device as described in claim 1, characterized in that: It also includes a drive mechanism for driving the driven ring to rotate.

3. The bidirectional fine-tuning device as described in claim 2, characterized in that: The driven ring includes a gear ring and a protruding edge disposed on the gear ring. The protruding edge protrudes in the same direction as the rotation axis of the driven ring. The first thread is disposed on the protruding edge. The driving member of the driving mechanism meshes with the gear ring.

4. The bidirectional fine-tuning device as described in claim 3, characterized in that: The driving component is a rotatable spindle, which has a gear structure that can mesh with the gear ring.

5. The bidirectional fine-tuning device as described in claim 4, characterized in that: The drive mechanism further includes a first bearing, a second bearing, and a bearing housing. The first bearing and the second bearing are both sleeved on the main shaft, and both the first bearing and the second bearing are installed in the mounting positions reserved in the guide base. The bearing housing is installed in the mounting positions, and the mounting positions are in communication with the inner ring.

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