Assembling equipment for coupling
By designing coupling assembly equipment, which utilizes a heating table and gripper module to automatically install couplings, the safety issues of personnel during high-temperature assembly processes have been solved, achieving an efficient and safe assembly process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI FUTIAN ELECTRIC TECH
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-05
AI Technical Summary
In the existing technology, the assembly process of the motor and the cross coupling encoder requires high skills from employees and poses safety hazards, especially when operating at high temperatures, which can easily lead to work-related injuries.
A coupling assembly device was designed, including a heating table, a positioning fixture, and a gripper module. The heating table heats the coupling to enlarge its assembly hole, and the gripper module automatically installs the coupling onto the motor shaft, avoiding manual high-temperature operation.
It improved assembly efficiency, ensured operator safety, reduced the incidence of workplace injuries, and decreased the defect rate.
Smart Images
Figure CN224196828U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of motor assembly technology, and in particular relates to an assembly device for couplings. Background Technology
[0002] As motors continue to evolve towards higher precision, the precision of matching encoders is also increasing. When using a cross-coupling encoder, the encoder coupling needs to be inserted into the motor's tail shaft first. The encoder coupling needs to be heated to 300°C, and then inserted into the motor's tail shaft using pliers within 4 seconds. This process is extremely demanding on the skills of employees, and heating the coupling to 300°C also poses a safety risk, potentially leading to accidents. Utility Model Content
[0003] In view of the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide an assembly device for couplings. This assembly device not only improves work efficiency but also ensures personnel safety and avoids work-related accidents caused by high temperatures.
[0004] The technical solution adopted in this embodiment of the utility model is:
[0005] An assembly device for a coupling, the coupling being used to connect a motor shaft and an encoder, the coupling having an assembly hole, the assembly device including a heating table, a positioning fixture, and a gripper module; the positioning fixture is disposed on the heating table, the positioning fixture having a positioning protrusion adapted to the assembly hole of the coupling, the heat from the heating table being transferred to the coupling through the positioning fixture to enlarge the assembly hole; the gripper module being able to grip the heated coupling and assemble the gripped coupling onto the motor shaft.
[0006] In some embodiments, the coupling further has through holes located on both sides of the mounting hole;
[0007] The gripper module includes a movable module and a clamping member disposed on the movable module. The clamping member is used to clamp two clamping arms of the coupling. The movable module is movable relative to the heating table so that the two clamping arms are inserted into the assembly hole to clamp the coupling, or so that the two clamping arms are moved out of the assembly hole to move away from the coupling.
[0008] In some embodiments, the heating table has a heating surface, the positioning fixture is disposed on the heating surface, and there are multiple positioning fixtures, with each of the multiple positioning fixtures disposed on the heating surface.
[0009] In some embodiments, the positioning fixture is made of a thermally conductive material, and the positioning fixture includes a chassis and a positioning protrusion provided on the chassis. The bottom surface of the chassis has a mating surface adapted to the heating surface.
[0010] In some embodiments, the heating platform is rectangular in shape, and the upper surface of the heating platform forms the heating surface.
[0011] In some embodiments, the assembly equipment includes an assembly table, the heating table and the gripper module are respectively fixed on the assembly table, the assembly table is provided with a directional guide rail and a positioning table provided on the directional guide rail on one side of the heating table, and the positioning table is used to fix the motor.
[0012] In some embodiments, the assembly equipment further includes a first fixed frame on the assembly table, and the movable module is fixed on the first fixed frame;
[0013] The moving module includes a first electric slide, a second electric slide, and a third electric slide. The first electric slide includes a first guide rail and a first slider that can move along the first guide rail. The second electric slide includes a second guide rail and a second slider that can move along the second guide rail. The third electric slide includes a third guide rail and a third slider that can move along the third guide rail.
[0014] The first guide rail is mounted on the first fixed frame, the third guide rail is connected to the first slider, the second guide rail is connected to the third slider, and the clamping member is connected to the second slider.
[0015] In some embodiments, the assembly equipment further includes a controller and a camera, the controller being connected to the camera and the drives of the three motorized slides, respectively;
[0016] The camera is used to capture images of multiple positioning fixtures on the heating surface. The controller can identify the position of each positioning fixture based on the captured images and control the moving module to move relative to the heating table so that the clamping member clamps the coupling.
[0017] In some embodiments, a second mounting bracket is provided on the assembly table, and the camera is located above the heating table and fixed on the second mounting bracket.
[0018] Compared with the prior art, the beneficial effects of the embodiments of this utility model are as follows:
[0019] The assembly equipment of this application embodiment can place the coupling on the positioning protrusion of the positioning fixture, heat the positioning protrusion by heating the heating table, heat the coupling to the required temperature, and enlarge the assembly hole by thermal expansion. Then, the gripper module picks it up and installs it on the motor shaft. This eliminates the need for operators to pick up the coupling, which not only improves work efficiency but also ensures personnel safety, avoids work-related accidents caused by high temperature, and reduces the defect rate.
[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit the present invention.
[0021] The overview of various implementations or examples of the technology described in this utility model is not a complete disclosure of the full scope or all features of the disclosed technology. Attached Figure Description
[0022] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts.
[0023] Figure 1 This is a schematic diagram of the assembly equipment structure for the coupling according to an embodiment of the present invention;
[0024] Figure 2 This is a schematic diagram of the heating table in an embodiment of the present invention;
[0025] Figure 3 This is a schematic diagram of the structure of the coupling according to an embodiment of the present invention;
[0026] Figure 4 This is a schematic diagram of the positioning fixture according to an embodiment of the present invention;
[0027] Figure 5 This is a schematic diagram of the gripper module according to an embodiment of the present invention;
[0028] Figure 6 This is a schematic diagram of the clamping component in an embodiment of the present invention.
[0029] In the diagram: 1. Heating table; 10. Heating surface; 2. Positioning fixture; 21. Chassis; 22. Positioning protrusion; 3. Gripper module; 31. First guide rail; 32. Second guide rail; 33. Third guide rail; 34. Clamping component; 35. Clamping arm; 4. Camera; 5. Motor; 6. Assembly table; 61. First fixing frame; 62. Second fixing frame; 63. Directional guide rail; 7. Coupling; 71. Assembly hole; 72. Through hole. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0031] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly. To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.
[0032] This application provides an assembly device for a coupling, wherein the coupling 7 is used to connect a motor shaft and an encoder. Before installing the encoder on the motor shaft, the coupling 7 needs to be installed on the motor shaft first, and then the encoder is installed on the motor shaft through the coupling 7 for measuring the rotation of the motor shaft. The coupling 7 has a mounting hole 71 that is adapted to the motor shaft. The motor shaft can be the spindle of a motor on a machine tool.
[0033] like Figure 1 , Figure 2 and Figure 4 As shown, the assembly equipment in this embodiment includes a heating table 1, a positioning fixture 2, and a gripper module 3.
[0034] The positioning fixture 2 is set on the heating table 1, and the heating table 1 can heat the positioning fixture 2 after heating.
[0035] The positioning fixture 2 has a positioning protrusion 22 that matches the mounting hole 71 of the coupling 7, and the coupling 7 can be directly inserted into the positioning protrusion 22.
[0036] The heat from the heating table 1 can be transferred to the coupling 7 through the positioning fixture 2, and the coupling 7 expands due to thermal expansion, which enlarges its assembly hole 71.
[0037] The gripper module 3 can grip the heated coupling 7 and assemble the gripped coupling 7 onto the motor shaft.
[0038] The assembly equipment in this embodiment can place the coupling 7 on the positioning protrusion 22 of the positioning fixture 2, and heat the positioning protrusion 22 by the heating table 1 to heat the coupling 7 to the required temperature. Through the principle of thermal expansion, the assembly hole 71 is enlarged. Then, the gripper module 3 picks it up and installs it on the motor shaft. This eliminates the need for operators to pick up the coupling, which not only improves the efficiency of the operation, but also ensures the safety of personnel, avoids the occurrence of work-related accidents caused by high temperature, and reduces the defect rate.
[0039] like Figure 3 and Figure 4 As shown, in some embodiments, the coupling 7 also has through holes 72 located on both sides of the mounting hole 71.
[0040] The gripper module 3 includes a movable module and a clamping member 34 disposed on the movable module. The clamping member 34 includes two clamping arms 35 that can move closer together or separate from each other. The two clamping arms 35 can be inserted into the through holes 72 on the coupling 7, and can clamp the coupling 7 by moving closer together. See Figure 6 As shown.
[0041] The movable module is used to move relative to the heating table 1 so that the two clamping arms 35 are inserted into the assembly hole 71 to clamp the coupling 7, or to move the two clamping arms 35 out of the assembly hole 71 away from the coupling 7.
[0042] like Figure 2 As shown, in some embodiments, the heating table 1 has a heating surface 10, and a positioning fixture 2 is disposed on the heating surface 10. There are multiple positioning fixtures 2, and each of the multiple positioning fixtures 2 is disposed on the heating surface 10. When the temperature of the heating surface 10 rises, the positioning fixtures 2 can be heated simultaneously, thereby heating multiple couplings 7 simultaneously.
[0043] The structure and working principle of the heating stage 1 in this embodiment are existing technologies and will not be described in detail here. For example, as... Figure 2 As shown, the heating table 1 can be rectangular in shape. The components for heating the heating table 1 are located inside the heating table 1. The upper surface of the heating table 1 forms a heating surface 10. Multiple positioning fixtures 2 can be distributed in a rectangular array on the heating table 1.
[0044] In some embodiments, the positioning fixture 2 can be made of a material that is easily conductive to heat, such as copper or aluminum. Figure 4As shown, the positioning fixture 2 may include a chassis 21 and a positioning protrusion 22 provided on the chassis 21. The chassis 21 can be placed directly on the heating table 1, and the bottom surface of the chassis 21 may have a mating surface adapted to the heating surface 10 to ensure that the chassis 21 can fit tightly with the heating table 1, thereby increasing the heat transfer area.
[0045] Of course, a heat transfer medium can also be provided between the chassis 21 and the heating platform 1. The heat from the heating platform 1 can be transferred to the chassis 21 through the heat transfer medium, which can improve the heat transfer efficiency.
[0046] In some embodiments, such as Figure 1 As shown, the assembly equipment may also include an assembly table 6, with a heating table 1 and a gripper module 3 fixed on the assembly table 6 respectively.
[0047] On the assembly table 6, a directional guide rail 63 and a positioning table (not shown in the figure) are provided on one side of the heating table 1. The directional guide rail 63 extends towards the heating table 1, and the positioning table can move along the directional guide rail 63. The positioning table is used to fix the motor 5 of the coupling 7 to be installed.
[0048] The motor 5 can be mounted backwards on the positioning table, with the tail of the motor shaft exposed. Once the motor 5 is fixed in place, the positioning table can be pushed directly to send the motor 5 into one side of the heating table 1. The coupling 7 gripped by the gripper module 3 can be directly assembled to the tail of the motor shaft. This prevents accidental operation of the assembly fixture, thus protecting the operator's safety.
[0049] In some embodiments, such as Figure 1 As shown, the assembly equipment may also include a first fixed frame 61 set on the assembly table 6, and the movable module may be fixed on the first fixed frame 61.
[0050] Among them, such as Figure 5 As shown, the moving module may include a first electric slide, a second electric slide and a third electric slide. The first electric slide includes a first guide rail 31 and a first slider (not shown in the figure) that can move along the first guide rail 31. The second electric slide includes a second guide rail 32 and a second slider (not shown in the figure) that can move along the second guide rail 32. The third electric slide includes a third guide rail 33 and a third slider (not shown in the figure) that can move along the third guide rail 33.
[0051] The first guide rail 31 is mounted on the first fixed frame 61, the third guide rail 33 is connected to the first slider, the second guide rail 32 is connected to the third slider, and the clamping member 34 can be connected to the second slider.
[0052] The first guide rail 31 and the second guide rail 32 can be perpendicular to each other and parallel to the heating surface 10 respectively. The third guide rail 33 is perpendicular to the second guide rail 32. The three axes X, Y and Z are composed of three linear guide rails. The three electric slides are all driven by high-precision servo motors (not shown in the figure). The position coordinates fed back by the controller are used to accurately and quickly position the spatial position of the coupling 7, and move the clamping part 34 to the required position for gripping and installation.
[0053] In some embodiments, the assembly equipment may further include a controller and a camera 4, with the controller connected to the camera 4 and the drive components, i.e., servo motors, of the three electric slides.
[0054] Camera 4 is used to capture images of multiple positioning fixtures 2 and motors 5 on the heating surface 10. The controller can identify the position of each positioning fixture 2 and the position of the motor 5 based on the captured images, and control the moving module to move relative to the heating table 1 so that the clamping member 34 can clamp each coupling 7 and install the clamped coupling 7 at the tail of the motor shaft of the motor 5.
[0055] Camera 4 can be a high-precision industrial position camera to detect the specific spatial position of coupling 7 and feed it back to the controller, detect the spatial position of the tail shaft of motor 5 and feed it back to the controller, and the controller calculates compensation for the gripping position and installation position of the moving module.
[0056] Preferably, the assembly table 6 may also be provided with a second fixing frame 62, and the camera 4 may be located above the heating table 1 and fixed on the second fixing frame 62.
[0057] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.
Claims
1. An assembly device for a coupling, the coupling being used to connect a motor shaft and an encoder, the coupling having an assembly hole, characterized in that, The assembly equipment includes a heating table, a positioning fixture, and a gripper module. The positioning fixture is disposed on the heating table and has a positioning protrusion that matches the assembly hole of the coupling. The heat generated by the heating table can be transferred to the coupling through the positioning fixture to enlarge the assembly hole. The gripper module can grip the heated coupling and assemble the gripped coupling onto the motor shaft.
2. The coupling assembly equipment as described in claim 1, characterized in that, The coupling also has through holes located on both sides of the assembly hole; The gripper module includes a movable module and a clamping member disposed on the movable module. The clamping member is used to clamp two clamping arms of the coupling. The movable module is movable relative to the heating table so that the two clamping arms are inserted into the assembly hole to clamp the coupling, or so that the two clamping arms are moved out of the assembly hole to move away from the coupling.
3. The coupling assembly equipment as described in claim 2, characterized in that, The heating table has a heating surface, and the positioning fixture is disposed on the heating surface. There are multiple positioning fixtures, and each of the multiple positioning fixtures is disposed on the heating surface.
4. The coupling assembly equipment as described in claim 3, characterized in that, The positioning fixture is made of a heat-conducting material. The positioning fixture includes a chassis and a positioning protrusion on the chassis. The bottom surface of the chassis has a mating surface that is adapted to the heating surface.
5. The coupling assembly equipment as described in claim 4, characterized in that, The heating platform is rectangular in shape, and the upper surface of the heating platform forms the heating surface.
6. The coupling assembly equipment as described in claim 2, characterized in that, The assembly equipment includes an assembly table, a heating table and a gripper module are respectively fixed on the assembly table, and a directional guide rail and a positioning table are provided on one side of the heating table on the assembly table. The positioning table is used to fix the motor.
7. The coupling assembly equipment as described in claim 6, characterized in that, The assembly equipment further includes a first fixed frame on the assembly table, and the movable module is fixed on the first fixed frame; The moving module includes a first electric slide, a second electric slide, and a third electric slide. The first electric slide includes a first guide rail and a first slider that can move along the first guide rail. The second electric slide includes a second guide rail and a second slider that can move along the second guide rail. The third electric slide includes a third guide rail and a third slider that can move along the third guide rail. The first guide rail is mounted on the first fixed frame, the third guide rail is connected to the first slider, the second guide rail is connected to the third slider, and the clamping member is connected to the second slider.
8. The coupling assembly equipment as described in claim 7, characterized in that, The assembly equipment also includes a controller and a camera, the controller being connected to the camera and the drive components of the three electric slides respectively; The camera is used to capture images of multiple positioning fixtures on the heating surface. The controller can identify the position of each positioning fixture based on the captured images and control the moving module to move relative to the heating table so that the clamping member clamps the coupling.
9. The coupling assembly equipment as described in claim 8, characterized in that, The assembly table is provided with a second fixing frame, and the camera is located above the heating table and fixed on the second fixing frame.