Stator pressing plate free height adjusting mechanism
By adopting a structural design combining bearings and guide rods on the stator press plate, the problem of free falling after the press plate is loosened is solved, and the height of the press plate is conveniently adjusted, and the operation convenience of the stator press plate is improved.
Patent Information
- Application Number
- CN202422278882.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing stator press plates are prone to free fall after loosening the screws, resulting in inconvenient adjustment.
The structural design of combining bearings and guide rods is adopted. Through the coordination of adjustment screws and positioning rods, the free height adjustment of the pressure plate is achieved, and the inner ring of the bearing is fitted with the outer ring of the guide rod to avoid the free fall of the pressure plate.
It realizes rapid and convenient adjustment of the height of the press plate, avoids the free fall of the press plate after loosening the screw, and improves the convenience and accuracy of operation.
Smart Images
Figure CN223181978U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the related technical field of accessories for motor processing, and particularly relates to a free height adjusting mechanism for a stator pressing plate. Background Technique
[0002] The stator in a motor is formed by laminating. The thickness of the stator laminations is set according to requirements. During the motor processing, winding and wire insertion processes are required. The wire insertion method is to insert a wire winding into the wire slots of the stator. Therefore, there is an automatic wire insertion machine for motor stators. The automatic wire insertion machine for motor stators is used to automatically insert the winding into the wire slots of the stator. Currently, the automatic wire insertion machine for motor stators mainly includes a frame, a stator positioning mechanism, and a wire insertion mechanism. For stators with different thickness dimensions, an adjustable stator positioning mechanism needs to be set. Currently, the stator positioning mechanism generally includes a stator positioning base 1, a pressing plate 2, and two guide rods 3. One end of the two guide rods 3 is fixed on the stator positioning base 1, and the pressing plate 2 is slidably connected between the two guide rods 3. The stator positioning base 1 and the pressing plate 2 are arranged in parallel. A clamping opening for clamping the stator 21 is formed between the pressing plate 2 and the stator positioning base 1. As Figure 1 shown, a clamping block 301 cooperating with the pressing plate 2 is respectively arranged on both sides of the front end of the pressing plate 2. A front C-shaped clamping opening is arranged on the clamping block 301, and a rear C-shaped clamping opening cooperating with the front C-shaped clamping opening is arranged on the pressing plate 2. The rear C-shaped clamping opening and the front C-shaped clamping opening cooperate to form a sliding groove for inserting the guide rod 3. Each side of each clamping block 301 is threadedly connected to the pressing plate 2 through a locking screw. During operation, the height of the pressing plate 2 can be adjusted only by loosening four locking screws, resulting in inconvenient operation. Moreover, when one locking screw is loosened and the other has not been loosened yet, it is easy to cause the pressing plate 2 to tilt, resulting in the problem that it is difficult to loosen the other screw. And once it is loosened, the entire pressing plate 2 will fall freely, resulting in inconvenient adjustment. Therefore, improvement is needed. Content of the Utility Model
[0003] The purpose of the utility model is to provide a free height adjusting mechanism for a stator pressing plate, which solves the problem that the existing stator pressing plate is prone to free fall once the screw is loosened, resulting in inconvenient adjustment.
[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0005] The utility model relates to a free height adjustment mechanism for a stator pressing plate, which comprises a stator positioning base, a pressing plate and two guide rods. One ends of the two guide rods are respectively fixed on the left and right sides of the stator positioning base. A positioning notch is arranged on the stator positioning base, and a stator fixing bottom plate is arranged in the positioning notch. A stator slot for inserting a stator is arranged on the stator fixing bottom plate. The pressing plate is slidably connected between the two guide rods. The pressing plate is arranged in parallel with the stator fixing bottom plate and above the stator fixing bottom plate. Two guide holes are arranged on the pressing plate and distributed left and right. A bearing is arranged in each guide hole. The inner ring of the bearing is inserted outside the guide rod, and the outer ring of the bearing is attached to the inner wall of the guide hole. A positioning rod is further arranged on the stator positioning base behind the stator slot. The upper end of the positioning rod penetrates through the pressing plate. An internal thread hole is arranged on the side of the pressing plate, and an adjusting screw is threadedly connected in the internal thread hole. One end of the adjusting screw penetrates through the internal thread hole and abuts against the positioning rod for locking the pressing plate.
[0006] Preferably, in order to fix the bearing and facilitate the disassembly of the bearing later, a bearing flange is arranged on one end face of the bearing. More than one first through hole is annularly arranged on the bearing flange, and a positioning screw threadedly connected with the pressing plate is inserted in each first through hole.
[0007] Preferably, for the convenience of operation, an adjusting sleeve is fixedly arranged at the other end of the adjusting screw, and an adjusting handle is arranged on the side of the adjusting sleeve.
[0008] Preferably, in order to automatically detect whether the stator is installed, a sensor for detecting whether the stator is in place is arranged on the side of the stator positioning base.
[0009] Preferably, in order not to affect the later wire embedding, a U-shaped notch for facilitating the insertion of the wire group is arranged on the pressing plate, and the U-shaped notch is arranged in alignment with the wire slot of the stator.
[0010] Preferably, for the convenience of later disassembly of the positioning rod, one end of the positioning rod is threadedly connected with the stator positioning base, and an adjusting handwheel is arranged at the other end of the positioning rod.
[0011] Preferably, for the convenience of later installation and disassembly, the front end of the stator slot is a notch, and an L-shaped sliding groove is arranged on each side in the stator slot. The two L-shaped sliding grooves are arranged in a mirror image.
[0012] Preferably, in order to prevent the pressing plate from falling freely under the action of gravity when the adjusting screw is loosened, a silica gel sleeve sleeved outside the guide rod is arranged on the inner side of each bearing.
[0013] The utility model has the following beneficial effects:
[0014] With this structure, by loosening an adjusting screw, when the head of the adjusting screw does not abut against the positioning rod, the height of the pressing plate can be quickly adjusted. Compared with the existing adjusting structure, the adjustment method of this structure is simpler and more convenient. And even if the adjusting screw is loosened, since the inner ring of the bearing fits with the outer ring of the guiding rod, the entire pressing plate will not fall freely and ultimately affect the adjustment effect, realizing that the height of the pressing plate can be freely adjusted. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 FIG. 6 is a schematic structural diagram of a pressing plate in the prior art;
[0016] Figure 2 FIG. 10 is a three-dimensional structure of a free height adjustment mechanism for a stator pressing plate in Embodiment 1; Figure 1 ;
[0017] Figure 3 FIG. 16 is a three-dimensional structure of a free height adjustment mechanism for a stator pressing plate in Embodiment 1; Figure 2 ;
[0018] Figure 4 FIG. 22 is a schematic structural diagram when the positioning screw and the adjusting screw are separated from other components in FIG. 24; Figure 2 FIG. 24 is a schematic structural diagram when the positioning screw and the adjusting screw are separated from other components;
[0019] Figure 5 FIG. 28 is a schematic bottom structure diagram of the pressing plate in Embodiment 1;
[0020] Figure 6 FIG. 32 is a schematic bottom structure diagram of the pressing plate and the bearing after installation in Embodiment 2.
[0021] Reference Numerals:
[0022] Stator positioning base 1, pressing plate 2, guiding rod 3, clamping block 301, positioning notch 4, L-shaped sliding groove 401, stator fixed bottom plate 5, stator slot 6, guiding hole 7, bearing 8, positioning rod 9, internal thread hole 10, adjusting screw 11, bearing flange 12, first through hole 13, positioning screw 14, silica gel sleeve 15, adjusting sleeve 16, adjusting handle 17, inductor 18, U-shaped notch 19, stator 20, adjusting handwheel 21. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.
[0024] Embodiment 1
[0025] Please refer to Figure 2-5 As shown, a free height adjustment mechanism for a stator pressing plate disclosed in this embodiment includes a stator positioning base 1, a pressing plate 2, and two guide rods 3. One end of each of the two guide rods 3 is fixed to the left and right sides of the stator positioning base 1 respectively. A positioning notch 4 is provided on the stator positioning base 1. A stator fixing bottom plate 5 is arranged in the positioning notch 4. A stator slot 6 for inserting a stator is provided on the stator fixing bottom plate 5. The pressing plate 2 is slidably connected between the two guide rods 3. The pressing plate 2 is arranged parallel to the stator fixing bottom plate 5 and is located above the stator fixing bottom plate 5. Two guide holes 7 are arranged on the pressing plate 2 in a left-right distribution. A bearing 8 is arranged in each guide hole 7. The inner ring of the bearing 8 is inserted outside the guide rod 3. The outer ring of the bearing 8 is in contact with the inner wall of the guide hole 7. A positioning rod 9 is also provided on the stator positioning base 1 behind the stator slot 6. The upper end of the positioning rod 9 penetrates through the pressing plate 2. An internal thread hole 10 is arranged on the side of the pressing plate 2. An adjusting screw 11 is threadedly connected in the internal thread hole 10. One end of the adjusting screw 11 penetrates through the internal thread hole 10 and abuts against the positioning rod 9 and is used to lock the pressing plate 2.
[0026] Preferably, in order to fix the bearing and facilitate the disassembly of the bearing later, a bearing flange 12 is arranged on one end face of the bearing 8. More than one first through hole 13 is annularly arranged on the bearing flange 12. A positioning screw 14 threadedly connected to the pressing plate 2 is inserted in each of the first through holes 13. Through the above structural arrangement, it is convenient to disassemble the bearing 8 later.
[0027] Preferably, for the convenience of operation, an adjusting sleeve 16 is fixedly arranged at the other end of the adjusting screw 11. An adjusting handle 17 is arranged on the side of the adjusting sleeve 16. In this embodiment, by arranging the adjusting handle 17, it is convenient to tighten or loosen the adjusting screw 11.
[0028] Preferably, in order to realize the automatic detection of whether the stator is installed, a sensor 18 for detecting whether the stator is in place is arranged on the side of the stator positioning base 1. In this embodiment, by arranging the sensor 18, the sensor 18 can be connected to the controller of the wire embedding device later, so that the controller of the wire embedding device can obtain whether the stator 20 is installed in place through the sensor 18, thereby improving the automatic detection of whether the stator is installed in place.
[0029] Preferably, in order not to affect the wire embedding later, a U-shaped notch 19 convenient for the wire group to be inserted is arranged on the pressing plate 2, and the U-shaped notch 19 is arranged in alignment with the wire machine slot of the stator 20.
[0030] Preferably, to facilitate the later disassembly of the positioning rod, one end of the positioning rod 9 is threadedly connected to the stator positioning base 1, and an adjusting handwheel 21 is provided at the other end of the positioning rod 9. By providing the adjusting handwheel 21, it is convenient to rotate the positioning rod 9 later to disassemble the positioning rod 9.
[0031] Preferably, to facilitate the later installation and disassembly, the front end of the stator slot 6 is a notch, and an L-shaped sliding groove 401 is provided on each side inside the stator slot 6. The two L-shaped sliding grooves 401 are mirror-symmetrically arranged. In this embodiment, by the two mirror-symmetrically arranged L-shaped sliding grooves 401 and in cooperation with the notch on the side, the stator fixing base plate 5 can be quickly inserted from the notch and move along the two L-shaped sliding grooves 401 to the lower position aligned with the U-shaped notch 19, ultimately facilitating the installation of the stator fixing base plate 5, and later it is possible to quickly replace the stator fixing base plate 5 with stator slots 6 of different sizes or different shapes.
[0032] The working principle of this structure is as follows: First, install the stator positioning base 1 at the corresponding position of the automatic wire embedding machine for the motor stator. Then loosen the adjusting screw 11. As the adjusting screw 11 is loosened outward from the pressing plate 2, when the head of the adjusting screw 11 does not abut against the positioning rod 9, the pressing plate 2 is not locked at this time. Under the action of the two side bearings 8 and the guide rod 3, holding the pressing plate 2 can move the pressing plate 2 up and down. Then insert the stator 20 into the stator slot 6, and then move the stator fixing base plate 5 from the notch on the side of the positioning notch 4 along the two L-shaped sliding grooves 401 to the lower position aligned with the U-shaped notch 19. At this time, move the pressing plate 2 to ensure that the bottom of the pressing plate 2 presses the stator 20 into the stator slot 6, and then lock the adjusting screw 11. Therefore, through the setting of this structure, when loosening one adjusting screw 11 and ensuring that the head of the adjusting screw 11 does not abut against the positioning rod 9, the height of the pressing plate 2 can be quickly adjusted. Compared with the existing adjusting structure, the adjusting method of this structure is simpler and more convenient. And even when the adjusting screw 11 is loosened, since the inner ring of the bearing 8 fits with the outer ring of the guide rod 3, the entire pressing plate 2 will not fall freely and ultimately affect the adjusting effect, realizing that the height of the pressing plate 2 can be freely adjusted.
[0033] Embodiment 2
[0034] Please refer to Figure 6As shown, the general structure of a stator pressure plate free height adjustment mechanism disclosed in this embodiment is substantially the same as that of Embodiment 1. The difference is that, preferably, in order to prevent the pressure plate 2 from falling freely under the action of gravity when the adjusting screw 11 is loosened, a silica gel sleeve 15 sleeved outside the guide rod 3 is provided inside each bearing 8. In this embodiment, by providing a silica gel sleeve 15 between the guide rod 3 and the inner ring of the bearing 8, the friction force between the guide rod 3 and the bearing 8 is increased, avoiding the pressure plate 2 from falling freely under the action of gravity and affecting the adjustment when the adjusting screw 11 is loosened and does not abut against the positioning rod 9. Only when an external force is applied to the pressure plate 2, will the pressure plate 2 move up and down as required.
[0035] The above are only the preferred embodiments of the present utility model and do not limit the present utility model. Any modification to the technical solutions recorded in the foregoing embodiments, any equivalent replacement of some technical features, and any modification, equivalent replacement, and improvement made shall fall within the protection scope of the present utility model.
Claims
1. A free height adjustment mechanism for a stator pressing plate, comprising a stator positioning base (1), a pressing plate (2), and two guide rods (3). One end of each of the two guide rods (3) is respectively fixed to the left and right sides of the stator positioning base (1). A positioning notch (4) is provided on the stator positioning base (1). A stator fixing bottom plate (5) is arranged in the positioning notch (4). A stator slot (6) for inserting a stator is provided on the stator fixing bottom plate (5). The pressing plate (2) is slidably connected between the two guide rods (3). The pressing plate (2) is arranged parallel to the stator fixing bottom plate (5) and is located above the stator fixing bottom plate (5), and is characterized in that: There are two guiding holes (7) arranged left and right on the pressing plate (2). A bearing (8) is arranged in each guiding hole (7). The inner ring of the bearing (8) is inserted outside the guiding rod (3). The outer ring of the bearing (8) is in contact with the inner wall of the guiding hole (7). A positioning rod (9) located behind the stator slot (6) is further arranged on the stator positioning base (1). The upper end of the positioning rod (9) penetrates through the pressing plate (2). An internal thread hole (10) is arranged on the side of the pressing plate (2). An adjusting screw (11) is threadedly connected in the internal thread hole (10). One end of the adjusting screw (11) penetrates through the internal thread hole (10) and abuts against the positioning rod (9) for locking the pressing plate (2).
2. The free height adjustment mechanism of a stator pressure plate according to claim 1, wherein: One end face of the bearing (8) is provided with a bearing flange (12). More than one first through hole (13) is annularly arranged on the bearing flange (12). A positioning screw (14) threadedly connected to the pressing plate (2) is inserted in each first through hole (13).
3. A stator pressure plate free height adjustment mechanism according to claim 1 or 2, characterized in that: An adjusting sleeve (16) is fixedly arranged at the other end of the adjusting screw (11). An adjusting handle (17) is arranged on the side of the adjusting sleeve (16).
4. A stator pressure plate free height adjustment mechanism according to claim 3, characterized in that: An inductor (18) for detecting whether the stator is in place is arranged on the side of the stator positioning base (1).
5. The free height adjustment mechanism of a stator pressing plate according to claim 4, characterized in that: A U-shaped notch (19) facilitating the insertion of the wire group is arranged on the pressing plate (2), and the U-shaped notch (19) is aligned with the wire slot of the stator (20).
6. The free height adjusting mechanism of a stator pressure plate according to claim 5, characterized in that: One end of the positioning rod (9) is threadedly connected to the stator positioning base (1), and an adjusting handwheel (21) is arranged at the other end of the positioning rod (9).
7. A stator pressure plate free height adjusting mechanism according to claim 6, characterized in that: The front end of the stator slot (6) is a notch. An L-shaped sliding groove (401) is arranged on each side inside the stator slot (6), and the two L-shaped sliding grooves (401) are arranged in a mirror image.
8. A stator pressure plate free height adjustment mechanism according to claim 7, characterized in that: A silica gel sleeve (15) sleeved outside the guiding rod (3) is arranged inside each bearing (8).