Device for conveniently and quickly adjusting concentricity of lead screw and speed reducer mounting hole
By coordinating the frame mechanism, motor mounting bracket, and adjustment and positioning mechanism, the problem of difficulty in quickly calibrating the coaxiality of the lead screw and reducer was solved, enabling rapid assembly and stable operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HEFEI TONGCAI INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2026-04-08
- Publication Date
- 2026-05-12
AI Technical Summary
In traditional assembly methods, it is difficult to quickly calibrate the coaxiality of the lead screw and the reducer, which leads to unstable equipment operation, cumbersome operation, and affects the equipment's operating accuracy and production efficiency.
The system employs a frame mechanism, a motor mounting bracket mechanism, and an adjustment and positioning mechanism. Through the cooperation of the positioning sleeve and the positioning block, the lead screw and the reducer can be quickly aligned, simplifying the concentricity adjustment process.
This enables rapid alignment of the lead screw and reducer, improves equipment assembly efficiency, reduces the difficulty of coaxiality adjustment, and ensures the operational stability and service life of the equipment.
Smart Images

Figure CN122008113A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of semiconductor panel technology, specifically a device for conveniently and quickly adjusting the concentricity of the lead screw and the gearbox mounting hole. Background Technology
[0002] In the assembly of automated equipment, precision transmission mechanisms, and CNC devices, the coaxiality of the lead screw and reducer is a critical factor affecting the equipment's operating accuracy, noise control, and service life. Traditional assembly methods typically involve directly fixing the reducer and motor to the frame, relying on the machining precision of the mounting holes to achieve the connection between the lead screw and reducer. This method has significant technical drawbacks: traditional installation structures lack dedicated concentricity adjustment mechanisms, making it difficult to quickly calibrate the center position of the lead screw and reducer input shaft during assembly. This easily leads to problems such as axis misalignment and eccentricity, resulting in stuttering, abnormal noise, and increased vibration during transmission, severely impacting the equipment's operational stability. Furthermore, traditional coaxiality adjustment methods are cumbersome and time-consuming, often requiring repeated adjustments using dial indicators or micrometers, relying heavily on operator experience, resulting in low assembly efficiency and failing to meet the demands of rapid assembly and mass production for automated equipment.
[0003] However, common lead screws and reducer shafts are often misaligned during installation, causing frequent damage to the couplings used to connect the two ends of the motor, affecting the production efficiency of the equipment and resulting in a lot of maintenance time. In addition, the concentricity adjustment process is cumbersome, leading to low installation efficiency. Summary of the Invention
[0004] The purpose of this invention is to provide a device for conveniently and quickly adjusting the concentricity of the lead screw and the gearbox mounting hole in order to solve the problems mentioned above.
[0005] The technical solution adopted in this invention is as follows: a device for convenient and quick adjustment of the concentricity of the lead screw and the reducer mounting hole, comprising a frame mechanism, a motor mounting bracket mechanism, and an adjustment and positioning mechanism; wherein...
[0006] The frame mechanism includes a frame, a frame threaded hole, and a bearing seat mounting groove. The frame has a frame threaded hole at the top and bottom, and a bearing seat mounting groove is provided at the front of the frame.
[0007] The motor mounting bracket mechanism includes a motor mounting bracket, a motor mounting bracket adjustment hole, and a mounting positioning hole. The motor mounting bracket has adjustment holes at both the top and bottom, which correspond to the threaded holes of the frame. The motor mounting bracket has mounting positioning holes on its back side.
[0008] The adjustment and positioning mechanism includes a positioning block, a positioning sleeve, and a handle. The positioning sleeve is fixedly connected to the front center circumference of the positioning block, and the handle is fixedly connected to the back side of the positioning block.
[0009] By adopting the above technical solution, during the operation of the equipment, the inner diameter of the mounting positioning hole is matched with the outer diameter of the positioning block, and the adjusting positioning mechanism is installed on the motor mounting bracket. By adjusting the horizontal direction of the motor mounting bracket, the lead screw is inserted into the guide hole opened in the positioning sleeve. Then, the motor mounting bracket and the frame are fixed by fixing bolts. This can quickly achieve center alignment between the reducer mounting hole and the lead screw, reduce the difficulty of coaxiality adjustment, achieve one-time quick alignment, and improve the efficiency of equipment assembly.
[0010] In a preferred embodiment, a lead screw bearing is fixedly installed on the inner side of the bearing housing mounting groove, and a lead screw is fixedly connected to the central shaft of the lead screw bearing. The back side of the lead screw passes through the frame and extends to the back side of the frame.
[0011] By adopting the above technical solution, the ball screw bearing is fixedly assembled in the bearing housing mounting groove, ensuring the stability of the ball screw during high-speed operation, while also facilitating the disassembly and maintenance of the ball screw.
[0012] In a preferred embodiment, the inner diameter of the mounting positioning hole matches the outer diameter of the positioning block and the front end of the reducer, and the positioning sleeve or positioning block can be movably inserted into the mounting positioning hole.
[0013] By adopting the above technical solution, and by matching the inner diameter of the mounting positioning hole with the positioning block and the outer diameter of the reducer, it can be ensured that after positioning by adjusting the positioning mechanism, the reducer can be easily installed, and the coaxiality of the reducer and the lead screw can be guaranteed.
[0014] In a preferred embodiment, the positioning sleeve has a guide hole inside, the inner diameter of which is adapted to the outer diameter of the lead screw, and the lead screw can be inserted into the positioning sleeve to form a coaxial guiding fit.
[0015] By adopting the above technical solution, the motor mounting bracket and frame can be quickly adjusted by inserting the guide hole in the positioning sleeve into the lead screw, and by setting the positioning hole and positioning block, ensuring that the positioning hole and the axis of the lead screw are aligned.
[0016] In a preferred embodiment, the frame and the motor mounting bracket are fixedly and adjustablely connected through the frame threaded holes, the motor mounting bracket adjustment holes, and the fixing bolts.
[0017] By adopting the above technical solution, the motor mounting bracket and the frame can be quickly connected and fixed through the threaded holes of the frame, the adjustment holes of the motor mounting bracket, and the fixing bolts.
[0018] In a preferred embodiment, the motor mounting bracket adjustment hole is an elongated oblong adjustment hole that is both horizontal and vertical.
[0019] By adopting the above technical solution, the horizontal and vertical elongated adjustment holes provided on the motor mounting bracket adjustment hole can facilitate the horizontal adjustment of the motor mounting bracket and the frame, ensuring that the mounting positioning hole is aligned with the axis of the lead screw.
[0020] In a preferred embodiment, a coupling is fixedly connected to the back side of the lead screw, the back side of the coupling is fixedly connected to the output shaft of the reducer, and a motor is fixedly connected to the back side of the reducer.
[0021] By adopting the above technical solution, the output shaft of the reducer can be fixedly connected to the lead screw through a coupling to achieve transmission.
[0022] In a preferred embodiment, a first adjustment knob and a second adjustment knob are respectively provided at the front and rear ends of the coupling.
[0023] By adopting the above technical solution and setting the first adjustment knob and the second adjustment knob, it is convenient to install the two ends of the coupling to the lead screw and the output shaft of the reducer, respectively.
[0024] In a preferred embodiment, a gasket is provided between the motor mounting bracket and the frame.
[0025] By adopting the above technical solution, the vertical direction of the motor mounting bracket and the frame can be adjusted by adding or reducing the number of shims, ensuring that the mounting positioning hole is aligned with the axis of the lead screw.
[0026] In a preferred embodiment, a handle is fixedly connected to the back side of the positioning block.
[0027] By adopting the above technical solution and setting a handle, the installation and removal of the positioning mechanism can be easily adjusted.
[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0029] During equipment operation, the inner diameter of the mounting positioning hole is matched with the outer diameter of the positioning block to install the adjustment positioning mechanism onto the motor mounting bracket. By adjusting the horizontal direction of the motor mounting bracket, the lead screw is inserted into the guide hole opened in the positioning sleeve. The motor mounting bracket and the frame are then fixed with fixing bolts. This allows for quick alignment of the reducer mounting hole and the lead screw, reducing the difficulty of coaxiality adjustment, achieving one-time quick alignment, and improving the efficiency of equipment assembly. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the positioning structure of the device frame and motor mounting bracket of the present invention;
[0031] Figure 2 This is a schematic diagram of the adjustment and positioning mechanism of the device in this invention;
[0032] Figure 3 This is a schematic diagram of the positioning cross-sectional structure of the device frame and motor mounting bracket in this invention;
[0033] Figure 4 This is a schematic diagram of the overall connection structure of the device in this invention;
[0034] Figure 5 This is a schematic diagram of the overall connection structure of the device in this invention.
[0035] The markings in the diagram are: 1. Frame; 2. Frame threaded hole; 3. Bearing housing mounting slot; 4. Lead screw bearing; 5. Lead screw; 6. Motor mounting bracket; 7. Motor mounting bracket adjustment hole; 8. Fixing bolt; 9. Mounting positioning hole; 10. Coupling; 11. First adjustment knob; 12. Second adjustment knob; 13. Reducer; 14. Motor; 15. Positioning sleeve; 16. Handle; 17. Positioning block. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, 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.
[0037] Example:
[0038] Reference Figure 1-5 A device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole, characterized in that it includes a frame mechanism, a motor mounting bracket mechanism, and an adjustment and positioning mechanism; wherein...
[0039] The frame mechanism includes a frame 1, a frame threaded hole 2, and a bearing seat mounting groove 3. The frame threaded hole 2 is provided on the top and bottom of the frame 1, and the bearing seat mounting groove 3 is provided on the front of the frame 1.
[0040] The motor mounting bracket mechanism includes a motor mounting bracket 6, a motor mounting bracket adjustment hole 7, and a mounting positioning hole 9. The motor mounting bracket 6 has motor mounting bracket adjustment holes 7 on both the top and bottom. The motor mounting bracket adjustment holes 7 correspond to the machine frame threaded holes 2. The motor mounting bracket 6 has mounting positioning holes 9 on the back side.
[0041] The adjustment and positioning mechanism includes a positioning block 17, a positioning sleeve 15, and a handle 16. The positioning sleeve 15 is fixedly connected to the front center circumference of the positioning block 17, and the handle 16 is fixedly connected to the back side of the positioning block 17.
[0042] During the operation of the equipment, by matching the inner diameter of the mounting positioning hole 9 with the outer diameter of the positioning block 17, the adjustment positioning mechanism is installed on the motor mounting bracket 6. By adjusting the horizontal direction of the motor mounting bracket 6, the lead screw 5 is inserted into the guide hole opened in the positioning sleeve 15. Then, the motor mounting bracket 6 and the frame 1 are fixed by the fixing bolts 8. The center alignment between the mounting hole of the reducer 13 and the lead screw 5 can be quickly achieved, which can reduce the difficulty of coaxiality adjustment, achieve one-time quick centering, and improve the efficiency of equipment assembly.
[0043] A lead screw bearing 4 is fixedly installed inside the bearing housing mounting groove 3. A lead screw 5 is fixedly connected to the central shaft of the lead screw bearing 4. The back side of the lead screw 5 passes through the frame 1 and extends to the back side of the frame 1. By fixing the lead screw bearing 4 in the bearing housing mounting groove 3, the stability of the lead screw 5 during high-speed operation is ensured, and the disassembly and maintenance of the lead screw 5 are also facilitated.
[0044] The inner diameter of the mounting positioning hole 9 matches the outer diameter of the positioning block 17 and the front end of the reducer 13. The positioning sleeve 15 or the positioning block 17 can be movably inserted into the mounting positioning hole 9. By matching the inner diameter of the mounting positioning hole 9 with the outer diameter of the positioning block 17 and the reducer 13, it can be ensured that after positioning by adjusting the positioning mechanism, the reducer 13 can be easily installed, and the coaxiality of the reducer 13 and the lead screw 5 can be guaranteed.
[0045] The positioning sleeve 15 has a guide hole inside, the inner diameter of which matches the outer diameter of the lead screw 5. The lead screw 5 can be inserted into the positioning sleeve 15 to form a coaxial guiding fit. Through the insertion of the lead screw 5 into the guide hole in the positioning sleeve 15, and through the setting of the mounting positioning hole 9 and the positioning block 17, the motor mounting bracket 6 and the frame 1 can be quickly adjusted to ensure that the mounting positioning hole 9 is aligned with the axis of the lead screw 5.
[0046] The frame 1 and the motor mounting bracket 6 are connected in an adjustable manner through the frame threaded hole 2, the motor mounting bracket adjustment hole 7, and the fixing bolt 8. The motor mounting bracket 6 and the frame 1 can be quickly connected and fixed through the frame threaded hole 2, the motor mounting bracket adjustment hole 7, and the fixing bolt 8.
[0047] The motor mounting bracket adjustment hole 7 is an elongated, horizontal and vertical adjustment hole. The elongated, horizontal and vertical adjustment holes on the motor mounting bracket adjustment hole 7 facilitate the horizontal adjustment of the motor mounting bracket 6 and the frame 1, ensuring that the mounting positioning hole 9 is aligned with the axis of the lead screw 5.
[0048] A coupling 10 is fixedly connected to the back side of the lead screw 5, and the back side of the coupling 10 is fixedly connected to the output shaft of the reducer 13. The output shaft of the reducer 13 and the lead screw 5 can be fixedly connected through the coupling 10 to realize transmission.
[0049] A first adjusting knob 11 and a second adjusting knob 12 are respectively provided at the front and rear ends of the upper part of the coupling 10. By providing the first adjusting knob 11 and the second adjusting knob 12, it is convenient to install the two ends of the coupling 10 to the output shaft of the lead screw 5 and the reducer 13, respectively.
[0050] A motor 14 is fixedly connected to the back side of the reducer 13. The motor 14 provides power to drive the lead screw 5 to rotate.
[0051] A handle 16 is fixedly connected to the back side of the positioning block 17. The handle 16 facilitates the installation and removal of the positioning mechanism.
[0052] The implementation principle of the device embodiment for conveniently and quickly adjusting the concentricity of the lead screw and reducer mounting holes of the present invention is as follows: First, the lead screw 5 and the lead screw bearing 4 are installed on the frame 1 through the bearing seat mounting groove 3. The motor mounting bracket 6 and the frame 1 are installed through the frame threaded hole 2, the motor mounting bracket adjustment hole 7, and the fixing bolt 8, but not locked. Then, the positioning block 17 is installed in the mounting positioning hole 9, and the direction of the motor mounting bracket 6 is moved horizontally. Then, the gap between the motor mounting bracket 6 and the frame 1 is filled with shims, and the motor mounting bracket is adjusted and moved. In the vertical direction of 6, the guide hole opened on the inner side of the positioning sleeve 15 fixedly connected to the front of the positioning block 17 is sleeved with the lead screw 5. At this time, the mounting positioning hole 9 opened at the rear of the motor mounting bracket 6 is aligned with the axis of the lead screw 5. Tighten the fixing bolt 8 to fix the frame 1 and the motor mounting bracket 6. Then, remove the adjusting positioning mechanism by the handle 16 and put the front end of the reducer 13 into the mounting positioning hole 9. At this time, the axis of the reducer 13 is aligned with the lead screw 5, and the fixed connection between the lead screw 5 and the output shaft of the reducer 13 is completed by the coupling 10.
[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole, characterized in that: This includes the frame mechanism, the motor mounting bracket mechanism, and the adjustment and positioning mechanism; among which... The frame mechanism includes a frame (1), a frame threaded hole (2), and a bearing seat mounting groove (3). The frame (1) has a frame threaded hole (2) on the top and bottom, and a bearing seat mounting groove (3) is provided on the front of the frame (1). The motor mounting bracket mechanism includes a motor mounting bracket (6), and motor mounting bracket adjustment holes (7) are provided on the top and bottom of the motor mounting bracket (6). The motor mounting bracket adjustment holes (7) correspond to the machine frame threaded holes (2). The motor mounting bracket (6) has a mounting positioning hole (9) on the back side. The adjustment and positioning mechanism includes a positioning block (17) and a positioning sleeve (15), with the positioning sleeve (15) fixedly connected to the front center circumference of the positioning block (17).
2. The device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole as described in claim 1, characterized in that: A lead screw bearing (4) is fixedly installed on the inner side of the bearing seat mounting groove (3). A lead screw (5) is fixedly connected to the central shaft of the lead screw bearing (4). The back side of the lead screw (5) passes through the frame (1) and extends to the back side of the frame (1).
3. The device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole as described in claim 1, characterized in that: The inner diameter of the mounting positioning hole (9) matches the outer diameter of the front end of the positioning block (17) and the reducer (13). The positioning sleeve (15) or the positioning block (17) can be movably inserted into the mounting positioning hole (9).
4. The device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole as described in claim 1, characterized in that: The positioning sleeve (15) has a guide hole inside, the inner diameter of which is adapted to the outer diameter of the lead screw (5), and the lead screw (5) can be inserted into the positioning sleeve (15) to form a coaxial guiding fit.
5. The device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole as described in claim 1, characterized in that: The frame (1) and the motor mounting bracket (6) are connected in an adjustable manner through the frame threaded hole (2), the motor mounting bracket adjustment hole (7), and the fixing bolt (8).
6. The device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole as described in claim 1, characterized in that: The motor mounting bracket adjustment hole (7) is a long, waist-shaped adjustment hole that is both horizontal and vertical.
7. The device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole as described in claim 2, characterized in that: A coupling (10) is fixedly connected to the back side of the lead screw (5), and the back side of the coupling (10) is fixedly connected to the output shaft of the reducer (13). A motor (14) is fixedly connected to the back side of the reducer (13).
8. The device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole as described in claim 7, characterized in that: The coupling (10) is provided with a first adjustment knob (11) and a second adjustment knob (12) at its front and rear ends.
9. The device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole as described in claim 1, characterized in that: A gasket is provided between the motor mounting bracket (6) and the frame (1).
10. The device for conveniently and quickly adjusting the concentricity of the lead screw and the reducer mounting hole as described in claim 1, characterized in that: The back side of the positioning block (17) is fixedly connected to a handle (16).