A fixing fixture for assembling a motor housing

Abstract

The utility model discloses a fixing fixture for assembling a motor housing, and relates to the technical field of motor housing. The utility model includes a workbench, a fixture body, a first motor, a second motor, a first rotating shaft, a second rotating shaft and a motor housing. An auxiliary support mechanism is provided on one side of the top of the workbench, and an adjustable fixing mechanism is provided on the fixture body. The utility model sets an electric push rod, a moving block, a plurality of electromagnets, a spring and a clamping rod, and uses electromagnets at different positions to control the clamping rods at different positions to extend a disc, so as to clamp and fix motor housings of multiple sizes. Before the clamping rod fixes the motor housing, the placement slot of the moving block provides a temporary support effect. When the fixing is completed, the electric push rod retracts the moving block into the placement table, so that all the heat sinks of the motor housing are fully exposed, and then with the assistance of the second motor, the subsequent assembly process is continued.

Description

Technical Field

[0001] The utility model relates to the technical field of motor housings, in particular to a fixing fixture for assembling a motor housing. Background Art

[0002] A motor refers to an electromagnetic device that realizes electrical energy conversion or transmission based on the law of electromagnetic induction. Its main function is to generate driving torque. As a power source for electrical appliances or various machines, the motor mainly includes a motor housing, a rotating shaft, a rotor core, left and right end covers, etc., wherein a stator is fixed in the motor housing, and the rotor core is locked in the middle of the rotating shaft. In the motor manufacturing process, the housing is an indispensable part. The most important component on the housing is the heat sink located on its outer wall. When assembling the motor housing, not only does it need to be polished for heat dissipation, but it also needs to engrave the driving information of the motor on the outer wall through an engraving machine. In this process, a motor housing assembly fixing fixture is required to limit the position of the cylindrical housing.

[0003] According to the search, the Chinese Patent Network with patent number CN113972804A discloses a "motor housing assembly fixture". By setting an adjusting screw sleeve, a limit plate, a limit disk, a pressure plate, a limit card and a pressure plate, the adjustment of the screw sleeve is used to adjust the distance between the two limit plates and limit the position of the housing on its inner side. The limit disk can perform the first step of limiting its position by applying pressure from both sides of the housing, and the limit card can perform the second step of limiting the position of the housing to achieve the limiting effect, thereby facilitating the grinding and processing of the heat sink at each position on its outer wall. However, with this limiting method, the heat sink at the bottom is blocked by the limit card. When the blocked part of the heat sink needs to be processed, additional steps such as pressing down the limit card are required, which is not conducive to the continuous progress of the assembly process. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a fixing fixture for assembling a motor housing, so as to solve the technical problem that when fixing the existing fixing fixture for assembling a motor housing, in order to ensure the fixing effect, the bottom heat sink is blocked, thus affecting the continuous progress of the assembly process.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixing fixture for assembling a motor housing, comprising a workbench, a fixture body, a first motor, a second motor, a first rotating shaft, a second rotating shaft and a motor housing, a screw rod is arranged at the output end of the first motor, and limit rods are arranged on both sides of the screw rod, an auxiliary support mechanism is arranged on one side of the top of the workbench, the auxiliary support mechanism comprises a placing table and an electric push rod, a moving block is arranged at the output end of the electric push rod, and a storage groove is opened on the moving block; an adjustable fixing mechanism is arranged on the fixture body, the adjustable fixing mechanism comprises a disc, a first electromagnet, a second electromagnet and a third electromagnet are arranged inside the disc, a spring and a moving seat are arranged on one side of the first electromagnet, the second electromagnet and the third electromagnet, and a clamping rod is arranged on the side of the moving seat away from the spring.

[0006] By adopting the above technical solution, the auxiliary support mechanism is used to briefly support the motor housing before clamping and fixing, and after the motor housing is completely fixed, the movable block is retracted to the placement table by the electric push rod, and the adjustable fixing mechanism can use the first electromagnet, the second electromagnet, the third electromagnet and the spring to extend the corresponding clamping rod out of the disc according to the size of the motor housing to clamp and fix the motor housing.

[0007] Furthermore, the first motor is fixedly connected to the screw rod, the screw rod is threadedly connected to the clamp body, and the clamp body is slidably connected to the limit rod.

[0008] By adopting the above technical solution, when the first motor is started, it drives the screw rod fixedly connected thereto to rotate, and then with the assistance of the limit rod, the clamp body is moved.

[0009] Furthermore, there are two clamp bodies, which are arranged in a mirror image, and threaded holes are provided on both clamp bodies, and the threaded holes on the two clamp bodies are also arranged in a mirror image.

[0010] By adopting the above technical solution, two clamp bodies arranged in mirror image can approach the motor housing from both sides of the motor housing at the same time, so as to fix the motor housing by using the clamp rod extending out of the disc.

[0011] Furthermore, the electric push rod is fixedly connected to the moving block, and the storage groove has a V-shaped structure.

[0012] By adopting the above technical solution, when the electric push rod is started, it will push the moving block fixedly connected thereto to move upward, or pull the moving block fixedly connected thereto to move downward, so as to flexibly change the position of the moving block according to usage needs.

[0013] Furthermore, the first electromagnet, the second electromagnet and the third electromagnet are all annular in structure, and the movable seat is made of ferrite stainless steel.

[0014] By adopting the above technical solution, multiple annular electromagnets can generate magnetic attraction forces on the movable seat at multiple positions of the circumference, so that the movable seat compresses the corresponding spring and retracts the corresponding clamping rod into the disc.

[0015] Furthermore, the clamping rods are provided in a plurality of groups, each group of the clamping rods is provided with a plurality of the clamping rods, and the plurality of the clamping rods are distributed in a circle.

[0016] By adopting the above technical solution, multiple groups of different clamping rods correspond to multiple electromagnets, so that the clamping rods can be more flexible to match the common sizes of the motor housing.

[0017] Furthermore, two discs are provided, the second motor is fixedly connected to the first rotating shaft, the first rotating shaft is fixedly connected to one of the discs, the second rotating shaft is fixedly connected to the other disc, and the first rotating shaft and the second rotating shaft are both rotatably connected to the clamp body.

[0018] By adopting the above technical solution, when the second motor is started, it drives the first rotating shaft fixedly connected thereto to rotate, thereby causing the disk fixedly connected to the first rotating shaft to rotate.

[0019] Furthermore, a slide groove is provided on the placement platform, a slider is provided inside the slide groove, and a cover plate is provided above the placement platform.

[0020] By adopting the above technical solution, the setting of the slider and the slide groove is used to assist the electric push rod in the movement process of pushing the moving block out or retracting the placement table.

[0021] Furthermore, the moving block is fixedly connected to the slider, the slider is slidably connected to the slide groove, the slider is provided in two groups, each group of the sliders is provided with two sliders, and the two groups of the sliders are symmetrically arranged.

[0022] By adopting the above technical solution, when the moving block is subjected to the upward thrust or downward pull of the electric push rod, the sliding block fixedly connected thereto will slide in the sliding groove immediately.

[0023] Furthermore, the top of the cover plate is a rectangular plate-shaped structure, the bottom of the cover plate is a U-shaped structure, and the bottom of the cover plate is adapted to the placement table.

[0024] By adopting the above technical solution and the structural design of the cover plate, it is possible to ensure that the cover plate can be smoothly covered on the top of the placement table when the placement table and the moving block inside the placement table need to be protected.

[0025] In summary, the utility model mainly has the following beneficial effects:

[0026] 1. The utility model sets an electric push rod, a moving block, multiple electromagnets, springs and a clamping rod. Electromagnets at different positions are used to control the clamping rods at different positions to extend the discs, and the clamping rods at other positions are retracted under the action of the springs, so as to clamp and fix motor housings of multiple sizes. Before the clamping rod fixes the motor housing, the storage groove of the moving block provides a temporary support. When the fixation is completed, the electric push rod retracts the moving block into the placement table, so that all the heat sinks of the motor housing are completely exposed, and then with the assistance of the second motor, the subsequent assembly process can continue.

[0027] 2. The utility model sets a slider, a slide groove and a cover plate, and utilizes the sliding process of the slider in the slide groove to assist the electric push rod in pushing or pulling back the moving block so that the moving process can be carried out more smoothly. The setting of the cover plate enables the cover plate to be placed on the placement table after the moving block is retracted to the placement table before the subsequent assembly process begins, so as to prevent debris or sundries generated by subsequent processing from accumulating into the storage groove or the slide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0029] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0030] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0031] Figure 4 For this utility model Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0032] In the figure: 1. workbench; 2. fixture body; 3. first motor; 4. screw rod; 5. limit rod; 6. auxiliary support mechanism; 601. placement table; 602. electric push rod; 603. moving block; 604. slider; 605. storage slot; 606. slide slot; 7. adjustable fixing mechanism; 701. disk; 702. first electromagnet; 703. second electromagnet; 704. third electromagnet; 705. spring; 706. moving seat; 707. clamping rod; 8. second motor; 9. first rotating shaft; 10. second rotating shaft; 11. motor housing; 12. cover plate. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0034] The following describes an embodiment of the utility model based on its overall structure.

[0035] Embodiment 1:

[0036] A fixing fixture for assembling a motor housing, such as Figure 1-Figure 4 As shown, it includes a workbench 1, a fixture body 2, a first motor 3, a second motor 8, a first rotating shaft 9, a second rotating shaft 10 and a motor housing 11, a lead screw 4 is arranged at the output end of the first motor 3, and limit rods 5 are arranged on both sides of the lead screw 4, an auxiliary support mechanism 6 is arranged on one side of the top of the workbench 1, the auxiliary support mechanism 6 includes a placement table 601 and an electric push rod 602, a moving block 603 is arranged at the output end of the electric push rod 602, and a storage groove 605 is opened on the moving block 603; an adjustable fixing mechanism 7 is arranged on the fixture body 2, and the adjustable fixing mechanism 7 includes a disc 701, and a first electromagnet 702, a second electromagnet 703 and a third electromagnet 704 are arranged inside the disc 701, and a spring 705 and a moving seat 706 are arranged on one side of the first electromagnet 702, the second electromagnet 703 and the third electromagnet 704, and the movable seat 706 is arranged on one side of the first electromagnet 702, the second electromagnet 703 and the third electromagnet 704. A clamping rod 707 is provided on the side of the seat 706 away from the spring 705. The auxiliary support mechanism 6 is used to briefly support the motor housing 11 before clamping and fixing. After the motor housing 11 is completely fixed, the moving block 603 is retracted to the placement table 601 through the electric push rod 602. The adjustable fixing mechanism 7 can extend the corresponding clamping rod 707 out of the disc 701 according to the size of the motor housing 11 using the first electromagnet 702, the second electromagnet 703, the third electromagnet 704 and the spring 705. According to the placement position, the clamping rod 707 can smoothly pass through the corresponding heat sinks on the motor housing 11 to clamp and fix the motor housing 11. This fixing method will not block the heat sink at any position. With the assistance of the second motor 8, the subsequent assembly processing steps can be carried out while rotating to ensure that they can be carried out continuously.

[0037] See also Figure 1 , Figure 2 The first motor 3 is fixedly connected to the screw rod 4, the screw rod 4 is threadedly connected to the clamp body 2, and the clamp body 2 is slidably connected to the limit rod 5. When the first motor 3 is started, it drives the screw rod 4 fixedly connected to it to rotate, and then with the assistance of the limit rod 5, the clamp body 2 moves, so that the clamp body 2 can effectively fix the motor housing 11 with the assistance of the adjustable fixing mechanism 7, and even if the length of the motor housing 11 is inconsistent, the entire fixing clamp can achieve the fixing effect of the motor housing 11.

[0038] See also Figure 1 , Figure 2There are two clamp bodies 2, and the two clamp bodies 2 are mirror-imaged. Both clamp bodies 2 are provided with threaded holes, and the threaded holes on the two clamp bodies 2 are also mirror-imaged. The two mirror-imaged clamp bodies 2 can approach the motor housing 11 from both sides of the motor housing 11 at the same time, so that the motor housing 11 is fixed by using the clamp rod 707 extending out of the disc 701. The mirror-imaged threaded holes on the two clamp bodies 2 ensure that when the screw rod 4 rotates, the two clamp bodies 2 can move towards or away from each other.

[0039] See also Figure 1 , Figure 2 The electric push rod 602 is fixedly connected to the moving block 603, and the storage groove 605 is a V-shaped structure. When the electric push rod 602 is started, it will push the moving block 603 fixedly connected to it to move upward, or pull the moving block 603 fixedly connected to it to move downward, so as to flexibly change the position of the moving block 603 according to the needs of use. The V-shaped storage groove 605 ensures that even if the diameter size of the motor housing 11 is slightly different, it will not affect the placement of the motor housing 11 in the storage groove 605 for temporary fixation.

[0040] See also Figure 3 , Figure 4 The first electromagnet 702, the second electromagnet 703 and the third electromagnet 704 are all in annular structure, and the movable seat 706 is made of ferritic stainless steel. The electromagnets with multiple annular structures can generate magnetic attraction to the movable seat 706 at multiple positions of the circumference, so that it compresses the corresponding spring 705 and retracts the corresponding clamping rod 707 into the disc 701. The material of the movable seat 706 is ferritic stainless steel, so that the movable seat 706 can respond to the magnetic attraction of the corresponding electromagnet and avoid rusting due to the presence of water molecules in the air during use, thereby extending the service life of the entire adjustable fixing mechanism 7.

[0041] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 There are multiple groups of clamping rods 707, each group of clamping rods 707 is provided with multiple clamping rods 707, and the multiple clamping rods 707 are distributed in a circle. Multiple groups of different clamping rods 707 correspond to multiple electromagnets, so that the clamping rods 707 can be more flexible to match the common sizes of the motor housing 11. Each group of multiple circularly distributed clamping rods 707 can ensure that the clamping rods 707 function at multiple positions on the circumference of the motor housing 11, so that the fixing effect of the clamping rods 707 on the motor housing 11 is guaranteed.

[0042] See also Figure 1 , Figure 2 , Figure 3There are two disks 701, the second motor 8 is fixedly connected to the first shaft 9, the first shaft 9 is fixedly connected to one of the disks 701, the second shaft 10 is fixedly connected to the other disk 701, the first shaft 9 and the second shaft 10 are both rotatably connected to the fixture body 2, when the second motor 8 is started, it drives the first shaft 9 fixedly connected thereto to rotate, and then the disk 701 fixedly connected to the first shaft 9 rotates, after the adjustable fixing mechanism 7 clamps and fixes the motor housing 11, it drives the motor housing 11 and the disk 701 and the second shaft 10 on the other side to rotate, so that when the motor housing 11 is subsequently assembled and processed, the corresponding heat sink can be rotated to the required position in time according to needs.

[0043] Embodiment 2:

[0044] See also Figure 1 , Figure 2 , Figure 3 A slide groove 606 is provided on the placement table 601, a slider 604 is provided inside the slide groove 606, and a cover plate 12 is provided above the placement table 601. The slider 604 and the slide groove 606 are provided to assist the electric push rod 602 in pushing out or retracting the moving block 603 from the placement table 601. The cover plate 12 is provided to protect the idle moving block 603 and prevent debris from entering the storage slot 605 in the idle moving block 603 and the slide grooves 606 on both sides of the placement table 601.

[0045] See also Figure 1 , Figure 2 The moving block 603 is fixedly connected to the slider 604, and the slider 604 is slidably connected to the slide groove 606. There are two groups of sliders 604, and each group of sliders 604 is provided with two sliders. The two groups of sliders 604 are symmetrically arranged. When the moving block 603 is subjected to the upward thrust or downward pull of the electric push rod 602, the slider 604 fixedly connected thereto will slide in the slide groove 606 immediately. The two groups of symmetrically arranged sliders 604 can assist in limiting the up and down movement process of the moving block 603 on both sides of the bottom of the moving block 603, so that the movement process of the moving block 603 is smoother.

[0046] See also Figure 1 , Figure 2 , Figure 3 The top of the cover 12 is a rectangular plate structure, and the bottom of the cover 12 is a U-shaped structure. The bottom of the cover 12 is compatible with the placement table 601. The structural design of the cover 12 can ensure that the cover 12 can smoothly cover the top of the placement table 601 when it is necessary to protect the placement table 601 and the moving block 603 inside it. When the moving block 603 needs to be used, the rectangular plate on the top of the cover 12 can be pulled to smoothly separate the U-shaped part at the bottom from the placement table 601.

[0047] The implementation principle of the utility model is as follows: first, the moving block 603 is pushed upward by the electric push rod 602, and the sliders 604 on both sides of the bottom thereof slide upward to the limit along the slide groove 606 of the placement table 601, and the motor housing 11 is placed in the storage groove 605, so that the heat sink is placed staggered with the clamp rod 707; secondly, the first motor 3 is started to drive the screw rod 4 to rotate, and with the assistance of the limit rod 5, the clamp bodies 2 on both sides approach each other until they are tightly attached to the two ends of the motor housing 11, and then the first motor 3 is powered off; then, according to the size of the motor housing 11, the corresponding first electromagnets 702, The second electromagnet 703 or the third electromagnet 704 is powered off. When the motor housing 11 is of a small size, the third electromagnet 704 is powered off, and the first electromagnet 702 and the second electromagnet 703 are powered on. At this time, the springs 705 on one side of the first electromagnet 702 and the second electromagnet 703 are contracted, and the corresponding clamping rods 707 are retracted. The spring 705 on one side of the third electromagnet 704 has no electromagnetic adsorption force acting on the moving seat 706. Under the action of the elastic restoring force of the spring 705, the corresponding clamping rod 707 is extended out of the disc 701, passes through the middle of the heat sink, and is close to the motor housing 11 to clamp and fix it. When the motor housing 11 is of medium size, the second electromagnet 703 is controlled to be powered off, and the corresponding spring 705 is extended and reset, and the corresponding clamping rod 707 extends out of the disc 701 and passes between the heat sinks of the medium-sized motor housing 11 to clamp and fix the motor housing 11. The first electromagnet 702 and the third electromagnet 704 are energized, and the corresponding moving seat 706 is acted upon by the magnetic attraction force, compressing the springs 705 corresponding to the two, and retracting the corresponding clamping rod 707 into the disc 701; when the motor housing 11 is of large size, the first electromagnet 702 is powered off, and the corresponding spring 705 pushes the moving seat 706 and the clamping rod 707 to move outward. After the clamping rod 707 extends out of the disc 701, it passes through the middle of the corresponding heat sink of the large-sized motor housing 11 to clamp and fix the motor housing 11. The second electromagnet 703 and the third electromagnet 704 are energized, and the corresponding movable seat 706 squeezes the spring 705 to retract the corresponding clamping rod 707 into the disc 701; finally, the cover plate 12 is covered, and the second motor 8 is started, driving the first rotating shaft 9 and the corresponding disc 701 to rotate. With the assistance of the clamping effect of the clamping rod 707, the motor housing 11, the other disc 701 and the second rotating shaft 10 are driven to rotate, so that the motor housing 11 rotates while completing the subsequent assembly processing steps.

[0048] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0049] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A fixing fixture for assembling a motor housing, characterized in that: The clamp comprises a workbench (1), a fixture body (2), a first motor (3), a second motor (8), a first rotating shaft (9), a second rotating shaft (10) and a motor housing (11); a screw rod (4) is arranged at the output end of the first motor (3); limit rods (5) are arranged on both sides of the screw rod (4); an auxiliary support mechanism (6) is arranged on one side of the top of the workbench (1); the auxiliary support mechanism (6) comprises a placement table (601) and an electric push rod (602); a moving block (603) is arranged at the output end of the electric push rod (602); and a storage groove (605) is provided on the moving block (603); An adjustable fixing mechanism (7) is arranged on the clamp body (2), and the adjustable fixing mechanism (7) comprises a disc (701), and a first electromagnet (702), a second electromagnet (703) and a third electromagnet (704) are arranged inside the disc (701), and a spring (705) and a movable seat (706) are arranged on one side of the first electromagnet (702), the second electromagnet (703) and the third electromagnet (704), and a clamping rod (707) is arranged on the side of the movable seat (706) away from the spring (705).

2. The fixing fixture for assembling the motor housing according to claim 1, characterized in that: The first motor (3) is fixedly connected to the screw rod (4), the screw rod (4) is threadedly connected to the clamp body (2), and the clamp body (2) is slidably connected to the limit rod (5).

3. The fixing fixture for assembling the motor housing according to claim 1, characterized in that: Two clamp bodies (2) are provided, and the two clamp bodies (2) are arranged in a mirror image. Both clamp bodies (2) are provided with threaded holes, and the threaded holes on the two clamp bodies (2) are also arranged in a mirror image.

4. The fixing fixture for assembling the motor housing according to claim 1, characterized in that: The electric push rod (602) is fixedly connected to the moving block (603), and the storage groove (605) is in a V-shaped structure.

5. The fixing fixture for assembling the motor housing according to claim 1, characterized in that: The first electromagnet (702), the second electromagnet (703) and the third electromagnet (704) are all annular structures, and the movable seat (706) is made of ferrite stainless steel.

6. The fixing fixture for assembling the motor housing according to claim 1, characterized in that: The clamping rods (707) are provided in a plurality of groups, each group of the clamping rods (707) is provided with a plurality of the clamping rods, and the plurality of the clamping rods (707) are distributed in a circular pattern.

7. The fixing fixture for assembling the motor housing according to claim 1, characterized in that: Two discs (701) are provided, the second motor (8) is fixedly connected to the first rotating shaft (9), the first rotating shaft (9) is fixedly connected to one of the discs (701), the second rotating shaft (10) is fixedly connected to the other disc (701), and the first rotating shaft (9) and the second rotating shaft (10) are both rotatably connected to the clamp body (2).

8. The fixing fixture for assembling the motor housing according to claim 1, characterized in that: The placement platform (601) is provided with a slide groove (606), a slider (604) is arranged inside the slide groove (606), and a cover plate (12) is arranged above the placement platform (601).

9. The fixing fixture for assembling the motor housing according to claim 8, characterized in that: The moving block (603) is fixedly connected to the slider (604), and the slider (604) is slidably connected to the slide groove (606). The sliders (604) are provided in two groups, each group of the sliders (604) is provided with two sliders, and the two groups of the sliders (604) are symmetrically arranged.

10. The fixing fixture for assembling the motor housing according to claim 8, characterized in that: The top of the cover plate (12) is a rectangular plate-shaped structure, the bottom of the cover plate (12) is a circular structure, and the bottom of the cover plate (12) is compatible with the placement table (601).

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