An assembly device for couplings
By using V-shaped positioning blocks and limiting components in the coupling assembly equipment, self-centering docking and flexible thrust of the shaft segments are achieved, solving the problem of low assembly efficiency in the prior art and improving the alignment effect and assembly stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG JIANGXIN TRANSMISSION TECHNOLOGY CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
AI Technical Summary
Existing coupling assembly equipment is cumbersome in the alignment process, requiring a laser to irradiate the threaded holes, resulting in low assembly efficiency.
By utilizing the self-centering characteristic of the V-shaped positioning block, the shaft segments are placed in the V-shaped positioning block, and the threaded block is moved by the motor-driven threaded rod, so that the two shaft segments are flush and fitted and the bolt holes are initially aligned. Combined with the limiting component, it provides flexible thrust to avoid hard collisions and ensure that the axis is parallel and the height is consistent.
It achieves precise alignment of two shafts, improves assembly efficiency and stability, is suitable for alignment of shafts of different diameters, and extends the service life of the coupling.
Smart Images

Figure CN224445221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coupling assembly technology, specifically to an assembly device for couplings. Background Technology
[0002] Couplings are key components in mechanical equipment that connect two shafts to transmit torque. Currently, the assembly process of small and medium-sized couplings requires the use of assembly equipment for rapid assembly.
[0003] For example, Chinese patent application number CN202420728456.9 describes an assembly device for couplings. This assembly device includes a base, a first coupling, and a first clamp. The top of the base has a sliding groove, which connects to one end of a slider via a sliding mechanism. The other end of the slider is fastened to a limiting groove, which has a bidirectional threaded post inside. A nut feeding belt moves the nut to a nut unloading block, where a magnet attracts the nut. A telescopic motor is activated, driving a third motor to move slowly, allowing a sleeve to engage with one end of a bolt. Activating the third motor again causes the sleeve to rotate via its output shaft. The telescopic motor pushes the bolt to the nut, and the rotation of the third motor tightens the nut, thus achieving automatic assembly and fixing of the coupling.
[0004] However, in actual use, when aligning the threaded holes on the coupling, the above-mentioned device requires the use of a laser to irradiate the two threaded holes to achieve alignment. This process is cumbersome and troublesome, and cannot be completed in one step, thus reducing assembly efficiency. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an assembly device for couplings. By placing two shaft segments inside two V-shaped positioning blocks respectively, and then driving one of the V-shaped positioning blocks to move, the two shaft segments can be flush and fitted when in contact, and the bolt holes can be initially aligned. This utilizes the self-centering characteristic of the V-shaped positioning blocks to efficiently and accurately connect the two shafts, and is applicable to shafts of different diameters. It ensures that the axes of the two shafts are parallel and the height is consistent when the shafts are fixed, improving the centering effect and subsequent assembly efficiency, and effectively solving the problems in the prior art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an assembly device for couplings, including a workbench, wherein an L-shaped rear plate is fixedly provided on the rear side of the top of the workbench;
[0007] The top of the worktable is equipped with an assembly component to center and fix shafts of different diameters, and to facilitate quick centering.
[0008] The L-shaped rear plate is equipped with a limiting component to improve the stability of the assembly process;
[0009] The assembly component includes a threaded rod. A slot is provided on one side of the top of the workbench. Both ends of the threaded rod are connected to the two side walls inside the slot via bearings. A threaded block is threadedly connected to the threaded rod. An L-shaped support is fixed on the top of the threaded block and on the other side of the top of the workbench. A V-shaped positioning block is fixed on the top of each of the two L-shaped support blocks to facilitate the rotation of the threaded rod to drive the threaded block to move horizontally along the threaded rod.
[0010] Preferably, a drive groove is provided on one side of the top of the workbench, and the drive groove is located at one end of the groove. A motor is fixedly installed inside the drive groove, and the output shaft of the motor passes through one side of the drive groove and is fixedly connected to one end of the threaded rod, so as to facilitate the motor to drive the threaded rod to rotate.
[0011] Preferably, the limiting component includes two telescopic rods, which are respectively distributed front to back and fixed on one side of the L-shaped support near the top of the threaded block. The end of the telescopic rod away from the L-shaped support is fixed with a limiting clamping plate to facilitate quick alignment of the two shaft segments.
[0012] Preferably, a spring is fitted on the telescopic rod, and the two ends of the spring are fixedly connected to one side of the L-shaped load-bearing seat near the threaded block and the other side of the limiting clamping plate, so as to facilitate the telescopic rod and the spring to retract when compressed.
[0013] Preferably, two front-to-back distributed limit clamps are provided on the side wall of the L-shaped bearing seat away from the threaded block, and their size matches that of the limit clamp. This facilitates the movement of the threaded block, allowing the telescopic rod to drive the limit clamp into the interior, improving the buffering effect, avoiding hard impacts and forced deformation during assembly, preventing damage to the journal and coupling elastic elements, and extending service life.
[0014] Preferably, an electric push rod is fixedly provided on the side of the top of the L-shaped rear plate away from the threaded block. The piston rod of the electric push rod passes through the top of the L-shaped rear plate, and an arc-shaped pressure plate is fixedly provided at the bottom end of the piston rod of the electric push rod, so that the electric push rod can drive the arc-shaped pressure plate to descend and limit and fix the first shaft segment placed inside the V-shaped positioning block away from the threaded block.
[0015] Preferably, a control panel for controlling the electric push rod and motor is fixedly provided at the center of the front side of the workbench, and support piles are fixedly provided on both sides of the bottom of the workbench to facilitate the support of this utility model.
[0016] Compared with the prior art, the present invention provides an assembly device for couplings, which has the following advantages:
[0017] 1. This utility model involves placing the first shaft segment, with the first half of the coupling already installed, into the V-shaped positioning block on the top of an L-shaped support on one side. Then, the second shaft segment, with the second half of the coupling already installed, is placed into the V-shaped positioning block on the top of an L-shaped support near the threaded block. The first shaft segment is then driven to move towards the second shaft segment, so that the two half couplings can be flush and fitted when in contact, and the bolt holes are initially aligned. Finally, the connecting bolts can be easily inserted and tightened manually or with the help of simple tools to complete the assembly. This utilizes the self-centering characteristic of the V-shaped positioning block to efficiently achieve precise docking of the two shafts, and is applicable to shafts of different diameters. It ensures that the axes of the two shafts are parallel and the height is consistent when they are fixed, improving the centering effect and subsequent assembly efficiency.
[0018] 2. In this utility model, when the second shaft segment is driven to mate with the first shaft segment, two telescopic rods drive the limiting clamping plate to insert into the two interiors, while simultaneously squeezing the telescopic rods and springs. This allows for adaptation to minor angular and positional deviations, providing flexible axial thrust and avoiding hard collisions and damage to the shaft segments caused by rigid pushing. It also ensures that the end faces of the two half couplings are flush and in close contact. Furthermore, when the first shaft segment is placed inside the V-shaped positioning block on the side away from the threaded block, the control panel controls the electric push rod to drive the arc-shaped pressure plate to descend and abut against the first shaft segment inside the V-shaped positioning block, thereby facilitating improved stability in subsequent assembly. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a rear view of the overall structure of this utility model;
[0021] Figure 3 This is a cross-sectional view of the overall structure of this utility model;
[0022] Figure 4 This is a partial structural diagram of the assembly component and the limiting component of this utility model;
[0023] Figure 5 This is a partial structural diagram of the assembly components of this utility model.
[0024] In the diagram: 1. Workbench, 2. L-shaped back plate, 3. Slot, 4. Drive slot, 5. Assembly assembly, 6. Limiting assembly, 7. Control panel, 8. Support pile;
[0025] 51 Threaded rod, 52 Threaded block, 53 L-type load-bearing seat, 54 V-type positioning block, 55 Motor, 61 Telescopic rod, 62 Spring, 63 Limiting clamp plate, 64 Electric push rod, 65 Arc-shaped pressure plate. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0027] like Figure 1-5 As shown, this utility model provides an assembly device for couplings, including a workbench 1. An L-shaped rear plate 2 is fixedly provided on the rear side of the top of the workbench 1, and support piles 8 are fixedly provided on both sides of the bottom of the workbench 1 to facilitate support of this utility model.
[0028] like Figure 1-5 As shown, the top of the workbench 1 is provided with an assembly component 5, which can center and fix shafts of different diameters and facilitate quick centering. The assembly component 5 includes a threaded rod 51. A slot 3 is opened on one side of the top of the workbench 1. The two ends of the threaded rod 51 are connected to the two side walls inside the slot 3 by bearings. A threaded block 52 is threadedly connected to the threaded rod 51. An L-shaped load-bearing seat 53 is fixed on the top of the threaded block 52 and on the other side of the top of the workbench 1.
[0029] Both L-shaped support seats 53 are fixedly provided with V-shaped positioning blocks 54 on their tops, which facilitates the rotation of the threaded rod 51 to drive the threaded block 52 to move horizontally along the threaded rod 51. A drive groove 4 is provided on one side of the top of the workbench 1, and the drive groove 4 is located at one end of the slot 3. A motor 55 is fixedly provided inside the drive groove 4. The output shaft of the motor 55 passes through one side of the drive groove 4 and is fixedly connected to one end of the threaded rod 51, which facilitates the motor 55 to drive the threaded rod 51 to rotate. A control panel 7 for controlling the operation of the motor 55 is fixedly provided at the center of the front side of the workbench 1.
[0030] By setting up assembly component 5, the first shaft segment with the already installed coupling half is first placed into the V-shaped positioning block 54 on top of the L-shaped support 53 on one side. Since the V-shaped positioning block 54 is "V" shaped, it can accommodate shaft segments of different diameters. Then, the second shaft segment with the other coupling half installed is placed into the V-shaped positioning block 54 on top of the L-shaped support 53 near the threaded block 52. Subsequently, the control panel 7 is operated to control the motor 55 inside the drive slot 4 to work. The motor 55 drives the threaded rod 51 inside the slot 3 to rotate, and the rotation of the threaded rod 51 drives the threaded block. 52 moves horizontally along the slot 3, simultaneously moving the top L-shaped support 53 and V-shaped positioning block 54, and moving to the other side of the L-shaped support 53 and V-shaped positioning block 54, so that the two halves of the coupling can be flush and fitted when in contact, and the bolt holes are initially aligned. Finally, the connecting bolts can be easily inserted and tightened manually or with the help of simple tools to complete the assembly. Thus, the self-centering characteristic of the V-shaped positioning block 54 is used to efficiently achieve precise docking of the two shafts, and it is applicable to shafts of different diameters. It ensures that the axes of the two shafts are parallel and the height is consistent when the two shafts are fixed, improving the centering effect and subsequent assembly efficiency.
[0031] like Figure 1-5 As shown, the L-shaped rear plate 2 is provided with a limiting component 6 to improve the stability of the assembly process. The limiting component 6 includes two telescopic rods 61, which are respectively distributed front to back and fixed on one side of the L-shaped support 53 near the top of the threaded block 52. A limiting retaining plate 63 is fixed at the end of the telescopic rod 61 away from the L-shaped support 53 to facilitate quick alignment of the two shaft segments. A spring 62 is sleeved on the telescopic rod 61, and the two ends of the spring 62 are respectively connected to the L-shaped support near the threaded block 52. The L-shaped support 53 is fixedly connected to the limit plate 63, which facilitates the retraction of the telescopic rod 61 and spring 62 under pressure. Two front-to-back 66s are provided on the side wall of the L-shaped support 53 away from the threaded block 52, and the size of the 66 matches the limit plate 63. This allows the telescopic rod 61 to drive the limit plate 63 into the 66 when the threaded block 52 moves, improving the buffering effect, avoiding hard impacts and forced deformation during assembly, preventing damage to the journal and coupling elastic elements, and extending service life.
[0032] An electric push rod 64 is fixedly provided on the side of the top of the L-shaped rear plate 2 away from the threaded block 52. The piston rod of the electric push rod 64 passes through the top of the L-shaped rear plate 2. An arc-shaped pressure plate 65 is fixedly provided at the bottom end of the piston rod of the electric push rod 64, so that the electric push rod 64 can drive the arc-shaped pressure plate 65 to descend and limit and fix the first shaft segment placed inside the V-shaped positioning block 54 on the side away from the threaded block 52. The electric push rod 64 is controlled by the control panel 7.
[0033] By setting the limiting component 6, when the drive threaded block 52 moves and drives the top L-shaped support seat 53 and V-shaped positioning block 54 to move, the L-shaped support seat 53 moves to the other side of the L-shaped support seat 53, so that the two telescopic rods 61 on one side of the L-shaped support seat 53 drive the limiting clamping plate 63 to insert into the two 66 on the other side of the L-shaped support seat 53. This allows it to adapt to small angular and positional deviations when pushing the second shaft segment to mate with the first shaft segment, providing flexible axial thrust and avoiding hard collisions and damage to the shaft segment caused by rigid pushing. At the same time, it ensures that the end faces of the two halves of the coupling are flush and fit together. When the first shaft segment is placed inside the V-shaped positioning block 54 on the side away from the threaded block 52, the operation control panel 7 controls the electric push rod 64 to drive the arc-shaped pressure plate 65 to descend and abut against the first shaft segment inside the V-shaped positioning block 54, thereby facilitating the improvement of the stability of subsequent assembly.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An assembly apparatus for couplings, comprising a worktable (1), characterized in that: The workbench (1) is fixedly provided with an L-shaped rear plate (2) on the top rear side; The worktable (1) is equipped with an assembly component (5) on top, which can center and fix shafts of different diameters and facilitate quick centering; The L-shaped rear plate (2) is provided with a limiting component (6) to improve the stability of the assembly process; The assembly component (5) includes a threaded rod (51). A slot (3) is provided on one side of the top of the workbench (1). The two ends of the threaded rod (51) are connected to the inner side walls of the slot (3) by bearings. A threaded block (52) is threadedly connected to the threaded rod (51). An L-shaped support (53) is fixedly provided on the top of the threaded block (52) and on the other side of the top of the workbench (1). A V-shaped positioning block (54) is fixedly provided on the top of the two L-shaped support (53).
2. The assembling apparatus for a coupling according to claim 1, characterized in that: The workbench (1) has a drive groove (4) on one side of its top, and the drive groove (4) is located at one end of the slot (3). A motor (55) is fixedly installed inside the drive groove (4). The output shaft of the motor (55) passes through one side of the drive groove (4) and is fixedly connected to one end of the threaded rod (51).
3. An assembling apparatus for a coupling according to claim 2, characterized in that: The limiting component (6) includes two telescopic rods (61), which are respectively distributed front to back and fixed on one side of the L-shaped support (53) near the top of the threaded block (52). The end of the telescopic rod (61) away from the L-shaped support (53) is fixedly provided with a limiting card plate (63).
4. The assembly equipment for couplings according to claim 3, characterized in that: A spring (62) is fitted on the telescopic rod (61), and the two ends of the spring (62) are fixedly connected to one side of the L-shaped support seat (53) near the threaded block (52) and the other side of the limiting card plate (63).
5. An assembling apparatus for a coupling according to claim 4, characterized in that: Two (66) are provided on one side wall of the L-shaped support (53) away from the threaded block (52), and the size of (66) matches the limit card plate (63).
6. An assembly apparatus for a coupling according to claim 5, wherein: An electric push rod (64) is fixedly provided on the side of the top of the L-shaped rear plate (2) away from the threaded block (52). The piston rod of the electric push rod (64) passes through the top of the L-shaped rear plate (2), and an arc-shaped pressure plate (65) is fixedly provided at the bottom end of the piston rod of the electric push rod (64).
7. An assembly apparatus for a coupling according to claim 6, characterized in that: The workbench (1) is fixedly provided with a control panel (7) for controlling the electric push rod (64) and the motor (55) at the center of the front side, and support piles (8) are fixedly provided on both sides of the bottom of the workbench (1).