A screw locking mechanism

Abstract

This application provides a screw-locking mechanism, including a frame, a support slide plate slidably mounted on the frame, a top support frame spanning the frame, a bottom lifting power assembly mounted on the frame, a screw-locking machine located above the top support frame, and a screw-locking moving assembly mounted on the frame and connected to the screw-locking machine. This application utilizes the support slide plate to support the motor housing and motor end cover; the bottom lifting power assembly lifts the support slide plate, which is then clamped and fixed by the bottom lifting power assembly and the top support frame, thus positioning the motor end cover and motor housing; the screw-locking moving assembly drives the screw-locking machine to move, allowing it to enter and exit a clearance hole to lock the screw body, thereby connecting and fixing the motor end cover and motor housing. Thus, this screw-locking mechanism enables automatic screw installation, improving the connection efficiency between the motor end cover and motor housing, and consequently increasing the motor assembly efficiency.

Description

Technical Field

[0001] This application belongs to the field of motor manufacturing technology, and more specifically, relates to a screw locking mechanism. Background Technology

[0002] During motor assembly, an end cover needs to be installed at the end of the motor housing to achieve a seal. The end cover is usually fixed to the motor housing with screws to allow for a detachable connection and facilitate motor maintenance.

[0003] However, the screw-locking operation between the motor end cover and the motor housing is usually done manually, which results in low screw installation efficiency and affects the motor assembly efficiency. Utility Model Content

[0004] The purpose of this application is to provide a screw-locking mechanism to solve the problem of low efficiency in the related art of manually connecting and fixing the motor end cover to the motor housing with screws.

[0005] To achieve the above objectives, the technical solution adopted in the embodiments of this application is as follows: A screw-locking mechanism is provided for connecting a motor housing to a motor end cover via a screw body, the screw-locking mechanism comprising: frame; A support slide plate is slidably mounted on the frame to support the motor housing and the motor end cover; A top support frame spans across the frame and is located above the support slide plate. The top support frame has a clearance hole for the screw body to pass through. A bottom lifting power assembly is installed on the frame and located below the support slide plate, used to lift the support slide plate so as to cooperate with the top support frame to clamp the support slide plate; A screw fastening machine, located above the top support frame, is used to fasten the screw body; A screw fastening moving assembly is mounted on the frame and connected to the screw fastening machine for driving the screw fastening machine in and out of the clearance hole.

[0006] In one embodiment, the top support frame includes a top bracket spanning the frame, a top pressure plate movably mounted on the top bracket in a vertical direction, and an elastic member disposed between the top bracket and the top pressure plate. One end of the elastic member abuts against the top bracket, and the other end of the elastic member abuts against the top pressure plate. The top pressure plate has the clearance hole, and the top bracket has an opening communicating with the clearance hole.

[0007] In one embodiment, the motor end cover has a positioning hole; the top support frame also includes a positioning guide rod for extending into the positioning hole, and the positioning guide rod is mounted on the top pressure plate.

[0008] In one embodiment, the top support frame further includes a top clamping seat for pressing against the top of the motor end cover, the top clamping seat being mounted on the top pressure plate.

[0009] In one embodiment, a waste container is mounted on the top support.

[0010] In one embodiment, the bottom lifting power assembly includes a lifting bracket mounted on the frame, a lifting plate movably mounted on the lifting bracket in a vertical direction, and a lifting drive for driving the lifting plate to rise and fall. The lifting drive is mounted on the lifting bracket and connected to the lifting plate.

[0011] In one embodiment, the support slide plate has a through hole, and the lifting plate is equipped with a lifting guide rod for inserting into the through hole.

[0012] In one embodiment, a positioning element is installed on the support slide plate, and a positioning switch for positioning in conjunction with the positioning element is installed on the frame.

[0013] In one embodiment, the frame is equipped with a mounting bracket and a limiting seat for engaging with the support slide plate to block it. The limiting seat is mounted on the mounting bracket and is located above the support slide plate.

[0014] In one embodiment, the screw fastening moving assembly includes at least one of the following: a screw fastening bracket mounted on the frame; a screw fastening lifting unit for driving the screw fastening machine to move up and down; a screw fastening longitudinal moving unit for driving the screw fastening machine to move longitudinally; and a screw fastening transverse moving unit for driving the screw fastening machine to move laterally. The screw fastening transverse moving unit is mounted on the screw fastening bracket, and its output end is connected to the screw fastening longitudinal moving unit. The output end of the screw fastening longitudinal moving unit is connected to the screw fastening lifting unit, and the output end of the screw fastening lifting unit is connected to the screw fastening machine.

[0015] The screw-locking mechanism provided in this application has at least the following beneficial effects: The supporting slide plate supports the motor housing and motor end cover; the bottom lifting power component lifts the supporting slide plate, which is then clamped and fixed by the bottom lifting power component and the top support frame, thus positioning the motor end cover and motor housing; the screw-locking moving component drives the screw-locking machine to move, allowing it to enter and exit the clearance hole to lock the screw body, thereby connecting and fixing the motor end cover and motor housing. Thus, this screw-locking mechanism enables automatic installation of the screw body, helping to improve the connection efficiency between the motor end cover and motor housing, and consequently improving the motor assembly efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the screw-locking mechanism provided in an embodiment of this application; Figure 2 This is an exploded structural diagram of the top support frame provided in the embodiments of this application; Figure 3 An exploded view showing the connection between the support slide plate, screw body, motor housing, and motor end cover provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the bottom lifting power assembly provided in the embodiments of this application; Figure 5 This is a schematic diagram of the rack structure provided in an embodiment of this application.

[0018] The main markings in the attached figures are as follows: 10. Screw body; 20. Motor housing; 201. First mounting hole; 30. Motor end cover; 301. Second mounting hole; 302. Positioning hole; 1. Frame; 11. Positioning switch; 12. Mounting bracket; 13. Limit seat; 14. Support transverse movement unit; 15. Stop bar; 16. Stopping drive component; 2. Supporting slide; 21. Through hole; 22. Positioning component; 3. Top support frame; 31. Clearance hole; 32. Top bracket; 321. Opening; 33. Top pressure plate; 34. Elastic element; 35. Positioning guide rod; 36. Top pressure seat; 37. Scrap box; 4. Bottom lifting power assembly; 41. Lifting bracket; 42. Lifting plate; 43. Lifting drive component; 44. Lifting guide rod; 45. Lifting guide rod; 5. Screw fastening machine; 6. Screw fastening moving assembly; 61. Screw fastening bracket; 62. Screw fastening lifting unit; 63. Screw fastening longitudinal movement unit; 64. Screw fastening transverse movement unit. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. "Several" means one or more, unless otherwise expressly specified.

[0022] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrase "in one embodiment" or "in some embodiments" appears in various places throughout the specification, and not all references are to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.

[0025] For ease of description, we define three mutually perpendicular coordinate axes in space as the X-axis, Y-axis, and Z-axis. The direction along the X-axis is vertical, the direction along the Y-axis is horizontal, and the direction along the Z-axis is vertical. The X-axis and Y-axis are two mutually perpendicular coordinate axes on the same horizontal plane, and the Z-axis is the vertical coordinate axis. The X-axis, Y-axis, and Z-axis lie on three mutually perpendicular planes in space: the XY-plane, the YZ-plane, and the XZ-plane. The XY-plane is horizontal, and the XZ-plane and YZ-plane are both vertical, with the XZ-plane perpendicular to the YZ-plane. Movement along these three axes in space refers to movement along the three mutually perpendicular axes in space, specifically movement along the X, Y, and Z axes. Planar movement, on the other hand, refers to movement within the XY-plane.

[0026] Please see Figures 1 to 3 The screw-locking mechanism provided in this application embodiment will now be described. This screw-locking mechanism connects the motor housing 20 and the motor end cover 30 via screw bodies 10. The motor housing 20 has a first mounting hole 201, and the motor end cover 30 has a second mounting hole 301. The screw body 10 passes through the second mounting hole 301 and is locked in the first mounting hole 201. Optionally, the number of the first mounting holes 201 and the second mounting holes 301 is the same, or there can be multiple first mounting holes 201 and second mounting holes 301. Specifically, there can be three first mounting holes 201 and three second mounting holes 301. The motor end cover 30 and the motor housing 20 are connected and fixed by three screw bodies 10 to improve the connection stability between the motor end cover 30 and the motor housing 20. The screw-locking mechanism includes a frame 1, a support slide plate 2, a top support frame 3, a bottom lifting power assembly 4, a screw-locking machine 5, and a screw-locking moving assembly 6. The support slide plate 2 is slidably mounted on the frame 1 and is used to support the motor housing 20 and the motor end cover 30. A slide rail is provided on the frame 1 along the X-axis, supporting the sliding plate 2 which is slidably mounted on the slide rail. (See reference...) Figure 5A support transverse unit 14 is provided on the frame 1 along the X-axis direction. This support transverse unit 14 is used to drive the support slide plate 2 to slide along the X-axis direction. The support transverse unit 14 can be a cylinder / electric cylinder / screw drive mechanism, a linear motor, etc. A top support frame 3 spans across the frame 1 and is located above the support slide plate 2. The top support frame 3 has a clearance hole 31 for the screw body 10 to pass through. A bottom lifting power assembly 4 is installed on the frame 1 and is located below the support slide plate 2. The bottom lifting power assembly 4 is used to lift the support slide plate 2 to cooperate with the top support frame 3 in clamping the support slide plate 2. A screw locking moving assembly 6 is installed on the frame 1. The output end of the screw locking moving assembly 6 is connected to the screw locking machine 5. The screw locking moving assembly 6 is used to drive the screw locking machine 5 to enter and exit the clearance hole 31. The screw locking machine 5 is located above the top support frame 3 and is used to lock the screw body 10 to achieve the connection and fixation between the motor end cover 30 and the motor housing 20. The screw fastening machine 5 is a commonly used accessory in the market and will not be described in detail here. This structure supports the motor housing 20 and the motor end cover 30 via the support slide plate 2; the bottom lifting power component 4 lifts the support slide plate 2, which is then clamped and fixed by the bottom lifting power component 4 and the top support frame 3, thus positioning the motor end cover 30 and the motor housing 20; the screw fastening moving component 6 drives the screw fastening machine 5 to move, allowing it to enter and exit the clearance hole 31 to lock the screw body 10, thereby connecting and fixing the motor end cover 30 and the motor housing 20. In this way, the screw fastening mechanism enables automatic installation of the screw body 10, helping to improve the connection efficiency between the motor end cover 30 and the motor housing 20, and thus improving the assembly efficiency of the motor.

[0027] In one embodiment, see Figure 2 As a specific embodiment of the screw-locking mechanism provided in this application, the top support frame 3 includes a top bracket 32 ​​spanning across the frame 1, a top pressure plate 33 movably mounted on the top bracket 32 ​​in the vertical direction, and an elastic member 34 disposed between the top bracket 32 ​​and the top pressure plate 33. One end of the elastic member 34 abuts against the top bracket 32, and the other end of the elastic member 34 abuts against the top pressure plate 33. The top pressure plate 33 has a clearance hole 31, and the top bracket 32 ​​has an opening 321 communicating with the clearance hole 31. The elastic member 34 can be a spring. In this structure, after the bottom lifting power assembly 4 lifts the support slide plate 2, the top pressure plate 33 can press against the top of the motor end cover 30, thus pressing the motor end cover 30 against the motor housing 20 and preventing positional displacement during screw-locking. The elastic member 34 provides elastic buffer protection, preventing damage from a hard collision between the top pressure plate 33 and the motor end cover 30.

[0028] Optionally, the number of clearance holes 31 is the same as the number of first mounting holes 201, and the multiple clearance holes 31 are respectively aligned with the multiple first mounting holes 201. Specifically, the number of clearance holes 31 can be three. The diameter of the opening 321 is smaller than the diameter of the top pressure plate 33, and the opening 321 communicates with the multiple clearance holes 31 respectively.

[0029] In one embodiment, see Figure 2 and Figure 3 As a specific embodiment of the screw-locking mechanism provided in this application, the motor end cover 30 is provided with a positioning hole 302; the top support frame 3 also includes a positioning guide rod 35 for extending into the positioning hole 302, and the positioning guide rod 35 is mounted on the top pressure plate 33. This structure, by having the positioning guide rod 35 extend into the positioning hole 302, achieves positioning of the motor end cover 30, preventing positional displacement during screw-locking. The number of positioning holes 302 can be multiple, and the number of positioning guide rods 35 is the same as the number of positioning holes 302, with multiple positioning guide rods 35 respectively aligned with multiple positioning holes 302. Specifically, the number of positioning holes 302 and positioning guide rods 35 can both be two.

[0030] In one embodiment, see Figure 2 As a specific embodiment of the screw-locking mechanism provided in this application, the top support frame 3 further includes a top clamping seat 36 for pressing against the top of the motor end cover 30. The top clamping seat 36 is mounted on the top pressure plate 33. The length of the top clamping seat 36 is less than the length of the positioning guide rod 35. With this structure, when the positioning guide rod 35 extends into the positioning hole 302, the top clamping seat 36 can press against the top of the motor end cover 30, thus achieving the pressing and fixing of the motor end cover 30. Specifically, there can be multiple top clamping seats 36, arranged in a circular array, thus pressing multiple positions of the motor end cover 30.

[0031] In one embodiment, see Figure 2 In one specific embodiment of the screw-fastening mechanism provided in this application, a scrap box 37 is installed on the top support 32. In this structure, when the screw-fastening mechanism malfunctions and stops suddenly, the screw-fastening machine 5 resets to its initial position and places the picked-up screw body 10 into the scrap box 37. The number of scrap boxes 37 can be multiple, with the same number of screw-fastening machines 5, screw-fastening moving components 6, and scrap boxes 37. In this embodiment, the number of screw-fastening machines 5, screw-fastening moving components 6, and scrap boxes 37 can all be two, meaning two scrap boxes 37 are respectively paired with two screw-fastening machines 5.

[0032] In one embodiment, see Figure 4As a specific embodiment of the screw-locking mechanism provided in this application, the bottom lifting power assembly 4 includes a lifting bracket 41 mounted on the frame 1, a lifting plate 42 movably mounted on the lifting bracket 41 in the vertical direction, and a lifting drive component 43 for driving the lifting plate 42 to rise and fall. The lifting drive component 43 is mounted on the lifting bracket 41 and connected to the lifting plate 42. The lifting drive component 43 can be a cylinder, electric cylinder, etc. In this structure, the lifting drive component 43 can drive the lifting plate 42 to rise and fall along the Z-axis direction. The lifting plate 42 can lift the support slide plate 2 and, in conjunction with the top support frame 3, clamp and fix the motor housing 20 and the motor end cover 30.

[0033] In one embodiment, see Figure 4 The bottom lifting power assembly 4 also includes multiple lifting guide rods 45 connecting the lifting bracket 41 and the lifting plate 42. One end of each lifting guide rod 45 is connected to the lifting plate 42, and the other end of each lifting guide rod 45 passes through the lifting bracket 41. This structure, through multiple lifting guide rods 45, can improve the reliability of the reciprocating lifting of the lifting plate 42.

[0034] In one embodiment, see Figure 3 and Figure 4 As a specific embodiment of the screw-locking mechanism provided in this application, the support slide plate 2 has a through hole 21, and the lifting plate 42 is equipped with a lifting guide rod 44 for insertion into the through hole 21. This structure, through the alignment and cooperation of the lifting guide rod 44 with the through hole 21, can reduce the positional displacement of the support slide plate 2 during lifting and lowering. The number of through holes 21 and lifting guide rods 44 is the same, with multiple through holes 21, and multiple lifting guide rods 44 are respectively aligned with multiple through holes 21. Specifically, there are two through holes 21 and two lifting guide rods 44.

[0035] In one embodiment, see Figure 3 and Figure 5 As a specific embodiment of the screw-locking mechanism provided in this application, a positioning element 22 is installed on the support slide plate 2, and a positioning switch 11 for positioning in conjunction with the positioning element 22 is installed on the frame 1. This structure, through the sensing interaction between the positioning switch 11 and the positioning element 22, ensures that the support slide plate 2 slides to the correct position, thereby improving the subsequent screw-locking accuracy.

[0036] In one embodiment, see Figure 5As a specific embodiment of the screw-locking mechanism provided in this application, a mounting bracket 12 and a limiting seat 13 for engaging with and resisting the support slide plate 2 are mounted on the frame 1. The limiting seat 13 is mounted on the mounting bracket 12 and is located above the support slide plate 2. This structure, through the resisting engagement of the limiting seat 13 with the support slide plate 2, can limit the lifting height of the support slide plate 2, thereby achieving limiting protection for the support slide plate 2.

[0037] In one embodiment, see Figure 5 The screw-locking mechanism also includes a stop lever 15 and a stop drive 16 for driving the stop lever 15 to rise and fall. The stop drive 16 is mounted on the frame 1, and its output end is connected to the stop lever 15. The stop lever 15 is located in front of the support slide plate 2. In this structure, the stop lever 15 can be driven to rise by the stop drive 16, and the stop lever 15 can stop the support slide plate 2. Combined with the sensing of the positioning switch 11 and the positioning element 22, the support slide plate 2 is positioned.

[0038] In one embodiment, see Figure 1 As a specific embodiment of the screw fastening mechanism provided in this application, the screw fastening moving assembly 6 includes at least one of the following: a screw fastening bracket 61 mounted on the frame 1; a screw fastening lifting unit 62 for driving the screw fastening machine 5 to rise and fall; a screw fastening longitudinal moving unit 63 for driving the screw fastening machine 5 to move longitudinally; and a screw fastening transverse moving unit 64 for driving the screw fastening machine 5 to move laterally. The screw fastening transverse moving unit 64 is mounted on the screw fastening bracket 61, and its output end is connected to the screw fastening longitudinal moving unit 63. The output end of the screw fastening longitudinal moving unit 63 is connected to the screw fastening lifting unit 62, and the output end of the screw fastening lifting unit 62 is connected to the screw fastening machine 5. The screw fastening lifting unit 62, the screw fastening longitudinal moving unit 63, and the screw fastening transverse moving unit 64 can all be pneumatic / electric / screw drive mechanisms, linear motors, etc. This structure allows the screw fastening machine 5 to move in multiple directions along the XYZ axes via the screw fastening lifting unit 62, the screw fastening longitudinal moving unit 63, and the screw fastening transverse moving unit 64.

[0039] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A screw-locking mechanism for connecting a motor housing to a motor end cover via a screw body, characterized in that, The locking screw mechanism includes: frame; A support slide plate is slidably mounted on the frame to support the motor housing and the motor end cover; A top support frame spans across the frame and is located above the support slide plate. The top support frame has a clearance hole for the screw body to pass through. A bottom lifting power assembly is installed on the frame and located below the support slide plate, used to lift the support slide plate so as to cooperate with the top support frame to clamp the support slide plate; A screw fastening machine, located above the top support frame, is used to fasten the screw body; A screw fastening moving assembly is mounted on the frame and connected to the screw fastening machine for driving the screw fastening machine in and out of the clearance hole.

2. The screw-locking mechanism as described in claim 1, characterized in that: The top support frame includes a top bracket spanning the frame, a top pressure plate movably mounted on the top bracket in a vertical direction, and an elastic member disposed between the top bracket and the top pressure plate. One end of the elastic member abuts against the top bracket, and the other end of the elastic member abuts against the top pressure plate. The top pressure plate has the clearance hole, and the top bracket has an opening communicating with the clearance hole.

3. The screw-locking mechanism as described in claim 2, characterized in that: The motor end cover has a positioning hole; the top support frame also includes a positioning guide rod for extending into the positioning hole, and the positioning guide rod is installed on the top pressure plate.

4. The screw-locking mechanism as described in claim 2, characterized in that: The top support frame also includes a top clamping seat for pressing against the top of the motor end cover, the top clamping seat being mounted on the top pressure plate.

5. The screw-locking mechanism as described in claim 2, characterized in that: A waste box is installed on the top support.

6. The screw-locking mechanism as described in claim 1, characterized in that: The bottom lifting power assembly includes a lifting bracket mounted on the frame, a lifting plate movably mounted on the lifting bracket in a vertical direction, and a lifting drive component for driving the lifting plate to rise and fall. The lifting drive component is mounted on the lifting bracket and connected to the lifting plate.

7. The screw-locking mechanism as described in claim 6, characterized in that: The support slide plate has a through hole, and the lifting plate is equipped with a lifting guide rod for inserting into the through hole.

8. The screw-locking mechanism as described in any one of claims 1-7, characterized in that: A positioning element is installed on the support slide plate, and a positioning switch is installed on the frame for positioning in conjunction with the positioning element.

9. The screw-locking mechanism as described in any one of claims 1-7, characterized in that: The frame is equipped with a mounting bracket and a limiting seat for cooperating with the support slide plate to block it. The limiting seat is mounted on the mounting bracket and is located above the support slide plate.

10. The screw-locking mechanism as described in any one of claims 1-7, characterized in that: The screw fastening moving assembly includes at least one of the following: a screw fastening bracket mounted on the frame; a screw fastening lifting unit for driving the screw fastening machine to move up and down; a screw fastening longitudinal moving unit for driving the screw fastening machine to move longitudinally; and a screw fastening transverse moving unit for driving the screw fastening machine to move laterally. The screw fastening transverse moving unit is mounted on the screw fastening bracket, and its output end is connected to the screw fastening longitudinal moving unit. The output end of the screw fastening longitudinal moving unit is connected to the screw fastening lifting unit, and the output end of the screw fastening lifting unit is connected to the screw fastening machine.

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