Press fitting device

Abstract

The utility model discloses a press fitting device which comprises a bottom plate, a backup plate, a movable plate, a transverse pressurizing assembly and a pressing plate assembly. The backup plate and the movable plate are vertically mounted on the bottom plate, an accommodating space for stacking iron core related accessories therein is formed between the backup plate and the movable plate, the backup plate is fixed on the bottom plate, and the movable plate can transversely move relative to the bottom plate; the transverse pressurizing assembly is located on the outer side of the backup plate and the movable plate and used for transversely pressurizing iron core related accessories. The pressing plate assembly is located above the containing space and used for vertically pressurizing the iron core related accessories. According to the press-fitting device, through the arrangement of the transverse pressurization assembly and the pressing plate assembly, uniform pressurization on the linear punching sheets can be achieved, uniform inter-sheet pressure is generated, the good press-fitting effect is achieved, and the press-fitting device is simple in structure, ingenious in design, low in cost, convenient to install and capable of being widely applied to most press-fitting operation.

Description

Technical Field

[0001] The present application relates to the technical field of motor manufacturing, and in particular to a press-fitting device. Background Art

[0002] In the manufacturing process of all motors, both the stator and the rotor need to be pressed. In the traditional rotating motor core pressing process, the hydraulic press needs to be pressurized to ensure the pressure between the core punching sheets, flatten the burrs of the core punching sheets, and reduce the influence of the burrs on the core size.

[0003] However, due to the particularity of the linear motor core structure, it is impossible to use a hydraulic press to uniformly pressurize the core, and the uniformity of the pressure between the core punching sheets cannot be guaranteed, and only the local punching burrs can be flattened.

[0004] How to achieve a better press-fitting effect on the core of a linear motor and improve the quality of the core is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0005] In order to solve the above technical problems, an object of the present invention is to provide a press-fitting device with good press-fitting effect.

[0006] The technical solution provided by the present invention is as follows:

[0007] A press-fitting device comprises a base plate, a backing plate, a movable plate, a transverse pressure assembly and a pressure plate assembly; the backing plate and the movable plate are vertically mounted on the base plate, a storage space is formed between the backing plate and the movable plate for stacking core-related accessories therein, the backing plate is fixed to the base plate, and the movable plate can move transversely relative to the base plate; the transverse pressure assembly is located on the outside of the backing plate and the movable plate, and is used for transversely pressurizing the core-related accessories; the pressure plate assembly is located above the storage space, and is used for vertically pressurizing the core-related accessories.

[0008] Preferably, the lateral pressurizing assembly includes a jack fixing frame and a jack, the jack fixing frame includes a connecting portion, an abutting portion, and an installing portion, the abutting portion and the installing portion are respectively located on the outside of the back plate and the movable plate, the abutting portion is used to abut against the outside of the back plate, and the installing portion is used to install the jack, so that the jack abuts against the outside of the movable plate, driving the movable plate to move inward, thereby applying lateral pressurization to the core-related accessories.

[0009] Preferably, the end of the mounting portion is located on the upper surface of the base plate.

[0010] Preferably, the mounting portion is an independent component and is fixed to the connecting portion by a pin.

[0011] Preferably, the connecting portion spans across the back plate, the movable plate, the pressure plate assembly and core-related accessories.

[0012] Preferably, there are multiple lateral pressurizing assemblies, and the jacks are hydraulic jacks. All hydraulic jacks share a hydraulic pump, and the output end of the hydraulic pump is connected to the jack using a hydraulic pipe of the same specification and length.

[0013] Preferably, the pressure plate assembly includes two supporting parts, a fixing part, a pressure plate, and an adjusting bolt. The fixing part is fixed to the base plate through the two supporting parts and is placed horizontally above the accommodating space. The pressure plate is located below the fixing part and is connected to the fixing part through an adjusting bolt, so that the pressure plate can be moved downward by rotating the adjusting bolt, thereby vertically pressurizing the core-related accessories.

[0014] Preferably, a slider is fixedly provided at the bottom of the movable plate, and a sliding groove is provided on the upper surface of the bottom plate corresponding to the slider. The slider cooperates with the sliding groove to enable the movable plate to move laterally relative to the bottom plate, but limits the movable plate from moving longitudinally and vertically relative to the bottom plate.

[0015] Preferably, the sliding block is in an inverted T-shape and is arranged longitudinally along the movable plate.

[0016] Preferably, there are multiple transverse pressure assemblies and pressure plate assemblies, which are arranged in parallel along the longitudinal direction of the bottom plate.

[0017] Compared with the prior art, the press-fitting device of the present invention respectively applies lateral and vertical pressure to the core-related accessories by setting a lateral pressure component and a pressure plate component, which can achieve uniform pressure on the linear punching sheets, so that they produce uniform pressure between the sheets, have a good press-fitting effect, and have a simple structure, ingenious design, low cost, and easy installation, and can be widely used in most press-fitting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A top view of a press-fitting device according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Middle AA section view;

[0021] Figure 3 for Figure 1 Middle BB section view;

[0022] Figure 4 for Figure 1A top view of the combination of the bottom plate, the back plate and the movable plate in the press-fitting device shown;

[0023] Figure 5 for Figure 4 The front view of the combination of the bottom plate, the back plate and the movable plate shown;

[0024] Figure 6 for Figure 1 A front view of a movable plate in the press-fitting device shown;

[0025] Figure 7 for Figure 1 A side view of a jack mounting bracket in the press-fit device shown;

[0026] Figure 8 for Figure 7 Front view of the jack mount shown.

[0027] Figure numerals: 1, base plate; 2, back plate; 3, jack fixing frame; 4, pressure plate assembly; 5, movable plate; 6, hydraulic jack. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0032] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0033] like Figures 1 to 8 As shown, an embodiment of the present invention provides a press-fitting device for press-fitting a linear motor core. The press-fitting device of this embodiment is not limited to press-fitting a linear motor core, but can also be used in various structures and scenarios where similar structures require lateral synchronous pressurization.

[0034] The press-fitting device comprises a bottom plate 1, a backing plate 2, five lateral pressurizing assemblies 3, two pressing plate assemblies 4, and a movable plate 5. The backing plate 2 and the movable plate 5 are vertically mounted on the bottom plate 1, and a receiving space is formed between the backing plate 2 and the movable plate 5 for stacking the core-related accessories (punching sheet 7, tooth pressure plate 8, clamping plate 9, etc.) therein.

[0035] like Figure 2 , 4 As shown, the backing plate 2 is in the shape of a long strip and is fixed to one side of the base plate 1 by bolts (not numbered) screwed in from the outside and the top.

[0036] like Figure 2 , 4 5, the movable plate 5 can move laterally relative to the bottom plate 1. In this embodiment, the movable plate 5 is an L-shaped strip, and a slider 51 is fixed to the bottom by bolts (not numbered). The slider 51 is in an inverted T shape and is arranged longitudinally along the movable plate 5. A slide groove 11 is provided on the upper surface of the bottom plate 1 corresponding to the slider. The slider 51 cooperates with the slide groove 11 to enable the movable plate 5 to move laterally relative to the bottom plate 1, but limits the movable plate 5 to move longitudinally and vertically relative to the bottom plate 1. Of course, other structures can also be used to enable the movable plate 5 to move laterally relative to the bottom plate 1, but limit the movable plate 5 to move longitudinally and vertically relative to the bottom plate 1.

[0037] Five transverse pressure components 3 are evenly arranged on the bottom plate 1 in the longitudinal direction. The number is not limited to five, but can be determined according to actual needs. Each transverse pressure component 3 is located outside the back plate 2 and the movable plate 5, and is used to apply transverse pressure to the core-related accessories. In this embodiment, the transverse pressure component includes a jack fixing frame 31 and a jack 32.

[0038] like Figure 7 , 8 As shown, in this embodiment, the jack fixing frame 31 includes a connecting portion 311, a contact portion 312, and a mounting portion 313. The contact portion 312 and the mounting portion 313 are respectively located on the outer sides of the backing plate 2 and the movable plate 5. The contact portion 312 is used to contact the outer side of the backing plate 2 (the convex block 3121 can be installed on the inner side of the contact portion 312 to cooperate with the groove 21 corresponding to the outer side of the backing plate 2 for positioning, as shown in FIG. Figure 2 ), the mounting portion 313 is used to install the jack 6 by setting the mounting hole 3131, so that the jack 6 abuts against the outer side of the movable plate 5, drives the movable plate 5 to move inward, and then applies lateral pressure to the core-related accessories. The end of the mounting portion 313 is located on the upper surface of the base plate 1 to support the jack fixing frame 3 through the base plate 1. The connecting portion 312 spans the backing plate 2, the movable plate 5, the pressure plate assembly 4 and the core-related accessories. In this embodiment, the mounting portion 313 is an independent component, which is fixed to the connecting portion 311 and the abutting portion 312 by two pins 314 to facilitate the processing of the mounting portion 313.

[0039] In this embodiment, the jack 32 is a hydraulic jack, all hydraulic jacks share a hydraulic pump, and the output end of the hydraulic pump is connected to the jack using a hydraulic pipe of the same specification and length, so that synchronous pressurization can be achieved. The tool for the lateral pressurizing component to provide pressure is not limited to the hydraulic jack, and any tool that can achieve the same effect can be used.

[0040] Two pressure plate assemblies 4 are respectively and evenly arranged above the bottom plate 1 in the longitudinal direction, and the number is not limited to 2, but can be determined according to actual needs. Each pressure plate assembly 4 is located above the accommodating space, and is used to vertically pressurize the core-related accessories to ensure that there are no convex pieces in the core punching sheet. In this embodiment, the pressure plate assembly 4 includes two supporting parts 41, a fixing part 42, a pressure plate 43, and an adjusting bolt 44. The fixing part 42 is fixed to the bottom plate 1 through two supporting parts 41 (one of the supporting parts 41 is indirectly fixed to the bottom plate 1 by being fixed to the back plate 2) and is horizontally placed above the accommodating space, and the pressure plate 43 is located below the fixing part 42 and is connected to the fixing part 42 through an adjusting bolt 44 (the pressure plate 43 and the fixing part 42 can also be connected through two guide rods 45 to ensure that the pressure plate 43 moves vertically), so that the pressure plate 43 can be moved downward by rotating the adjusting bolt 44, thereby vertically pressurizing the core-related accessories.

[0041] The pressurizing assembly is not limited to the structure in the present device. For example, the two supporting parts and the fixing part may not be used. Any structure that can effectively fix the pressing plate and can meet the requirements of the core press-fitting operation may be used. The pressurizing assembly is not limited to the use of adjusting bolts. Any structure that can move the pressing plate downward and can meet the requirements of the core press-fitting operation may be used.

[0042] The press-fitting method using the press-fitting device as described above includes:

[0043] Install the backing plate, movable plate and pressure plate assembly on the bottom plate;

[0044] Stack the core-related accessories between the backing plate and the movable plate in the order required (generally according to the installation drawing requirements);

[0045] The hydraulic jack is fixedly connected to the jack fixing frame to form a transverse pressure assembly, which is installed on the outer side of the back plate and the movable plate;

[0046] Use all hydraulic jacks to synchronously pressurize the core-related accessories laterally, and measure the core thickness while maintaining the pressure to determine whether it meets the requirements. If not, stop the press fitting;

[0047] Stop the lateral pressurizing assembly (i.e., release the pressure from the hydraulic jack), and use the pressure plate assembly to vertically pressurize the core-related accessories to ensure that there are no convex pieces on the core punching sheets;

[0048] The core-related accessories are laterally pressurized using a transverse pressurizing assembly, and the core is tightened while maintaining the pressure.

[0049] After tightening, release the pressure and remove the tooling, and the linear motor core press-fitting operation is completed.

[0050] In this embodiment, five hydraulic jacks are used to simultaneously pressurize the movable plate and transmit the pressure to the core, so that the core obtains uniform inter-plate pressure. After pressurization, the adjusting bolts in the pressure plate assembly are tightened so that the pressure plate applies downward pressure to prevent the core from having convex pieces during the pressurization process, resulting in unevenness that does not meet the requirements. Finally, under the premise of maintaining pressure with the hydraulic jack, the core is fixed according to the design drawings.

[0051] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A press-fitting device, characterized in that: It includes a bottom plate, a backing plate, a movable plate, a transverse pressure assembly, and a pressure plate assembly; the backing plate and the movable plate are vertically mounted on the bottom plate, and a storage space for the core-related accessories to be stacked is formed between the backing plate and the movable plate. The backing plate is fixed to the bottom plate, and the movable plate can move transversely relative to the bottom plate; the transverse pressure assembly is located on the outside of the backing plate and the movable plate, and is used to perform transverse pressure on the core-related accessories; The pressure plate assembly is located above the accommodating space and is used to vertically pressurize the core-related accessories.

2. The press-fitting device according to claim 1, characterized in that: The lateral pressurizing assembly includes a jack fixing frame and a jack. The jack fixing frame includes a connecting portion, an abutting portion, and an installing portion. The abutting portion and the installing portion are respectively located on the outside of the back plate and the movable plate. The abutting portion is used to abut against the outside of the back plate, and the installing portion is used to install the jack, so that the jack abuts against the outside of the movable plate, driving the movable plate to move inward, thereby applying lateral pressurization to the core-related accessories.

3. The press-fitting device according to claim 2, characterized in that: The end of the mounting portion is located on the upper surface of the bottom plate.

4. The press-fitting device according to claim 2, characterized in that: The mounting portion is an independent component and is fixed to the connecting portion by means of pins.

5. The press-fitting device according to claim 2, characterized in that: The connecting portion spans across the back plate, the movable plate, the pressure plate assembly and the core-related accessories.

6. The press-fitting device according to claim 2, characterized in that: There are multiple transverse pressurizing assemblies, and the jacks are hydraulic jacks. All hydraulic jacks share a hydraulic pump, and the output end of the hydraulic pump is connected to the jack using a hydraulic pipe with the same specification and length.

7. The press-fitting device according to claim 1, characterized in that: The pressure plate assembly includes two supporting parts, a fixing part, a pressure plate, and an adjusting bolt. The fixing part is fixed to the bottom plate through the two supporting parts and is placed horizontally above the accommodating space. The pressure plate is located below the fixing part and is connected to the fixing part through the adjusting bolt, so that the pressure plate can be moved downward by rotating the adjusting bolt, thereby vertically pressurizing the core-related accessories.

8. The press-fitting device according to claim 1, characterized in that: A slider is fixedly arranged at the bottom of the movable plate, and a sliding groove is arranged on the upper surface of the bottom plate corresponding to the slider. The slider cooperates with the sliding groove to enable the movable plate to move laterally relative to the bottom plate, but limits the movable plate from moving longitudinally and vertically relative to the bottom plate.

9. The press-fitting device according to claim 8, characterized in that: The sliding block is in an inverted T shape and is arranged longitudinally along the movable plate.

10. The press-fitting device according to any one of claims 1 to 9, characterized in that: There are multiple transverse pressure components and pressure plate components, which are arranged in parallel along the longitudinal direction of the bottom plate.

Images