Motor coil hot pressing device

Abstract

The utility model relates to the technical field of hot presses, in particular to a motor coil hot pressing device which comprises a base, a top plate fixed at the top end of the base through a plurality of supporting rods and a pressing plate arranged between the base and the top plate in an up-down moving mode through a lifting piece. Two limiting rods are movably arranged on the two sides of the top end of the base through linear driving pieces, the linear driving pieces are used for adjusting the distance between the two limiting rods, and two connecting rods are movably arranged in the limiting rods through adjusting mechanisms along the two sides perpendicular to the moving direction of the limiting rods. The two connecting rods extend to the outside of the limiting rod and are fixedly provided with inner supporting rods, the inner supporting rods are vertically fixed to the top ends of the connecting rods, the adjusting mechanism is used for synchronously adjusting the lengths of the parts, extending to the outside of the limiting rod, of the two connecting rods, coils of different specifications can be internally supported and positioned before hot pressing, coil deformation in the hot pressing process is avoided, and the hot pressing quality is improved. The product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing machines, in particular to a hot pressing device for motor coils. Background Art

[0002] During the design and production process of motor coil windings, the corresponding coil structure and shape are generally designed according to different motor models, so that the coil windings can be easily embedded in the motor stator. In order to meet the design requirements and facilitate installation, the coil windings need to be shaped so that the entire coil can maintain a fixed shape. Otherwise, the coil windings are prone to deformation during the later embedding process, causing the coil windings to abut against the inner wall of the stator silicon steel sheet slot and cause damage to the insulation layer. For this reason, during the processing of the coils, the coil windings covered with the insulation layer need to be hot-pressed and shaped.

[0003] In the Chinese Patent Literature Library, a patent with authorization announcement number CN219938155U discloses a generator coil hot pressing device, which hot presses the coil by setting a lifting plate and a supporting and adjusting base. During actual use, the coil lacks a positioning mechanism. When the pressure is too high, the coil is easily squeezed and deformed, affecting the product quality. Summary of the invention

[0004] The purpose of the utility model is to provide a motor coil hot pressing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a motor coil hot pressing device, comprising a base, a top plate fixed to the top of the base by a plurality of support rods, and a pressure plate movably arranged between the base and the top plate by a lifting member, wherein heating plates are arranged on opposite sides of the base and the top plate, two limit rods are movably arranged on both sides of the top of the base by a linear driving member, the linear driving member is used to adjust the spacing between the two limit rods, two connecting rods are movably arranged inside the limit rod along both sides perpendicular to the moving direction thereof by an adjusting mechanism, the two connecting rods extend to the outside of the limit rod and are fixed with an inner support rod, the inner support rod is vertically fixed to the top of the connecting rod, and the adjusting mechanism is used to synchronously adjust the length of the two connecting rods extending to the outside of the limit rod.

[0006] Furthermore, the heating plates are all rectangular frame structures.

[0007] Furthermore, a bent section is fixed vertically outward at one end of the connecting rod, and the inner support rod is fixed at one end of the bent section away from the connecting rod.

[0008] Furthermore, the inner support rod includes an outer tube and an inner rod movably arranged inside the outer tube via an elastic support member, the elastic support member is arranged at the bottom end inside the outer tube, and the top end of the elastic support member abuts against the bottom end of the inner rod.

[0009] Furthermore, the adjustment mechanism includes a gear rotatably arranged in the middle of the limit rod and two racks fixed at opposite ends of the connecting rod, the two racks are respectively meshed with the radial ends of the gear, and at least one fastening bolt is provided on the connecting rod for fixing the connecting rod.

[0010] Furthermore, a positioning frame is provided at the top of the base, and the heating plate is located inside the positioning frame.

[0011] Furthermore, the linear drive component includes a threaded rod installed inside the base, a drive component that drives the threaded rod to rotate, and two sliders respectively fixed to the limit rods. The threaded rod is provided with external threads in opposite directions at both ends along its length direction, and the two sliders are respectively threadedly connected to the two ends of the threaded rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The motor coil hot pressing device can perform internal support positioning on coils of different specifications before hot pressing by arranging a limit rod, an internal support rod, a connecting rod and an adjustment mechanism, thereby avoiding deformation of the coil during hot pressing and improving product quality.

[0014] By setting the inner support rod as a telescopic structure of the outer tube, the inner rod and the elastic support member, a certain buffering effect can be played before hot pressing, reducing the vibration force caused by the downward stamping of the pressing plate and causing the outer tubes to deviate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the limit rod of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the adjusting mechanism of the utility model.

[0019] In the figure: 1. base; 101. positioning frame; 2. top plate; 3. support rod; 4. lifting member; 5. pressure plate; 6. heating plate; 7. linear drive member; 701. threaded rod; 702. slider; 8. limit rod; 9. inner support rod; 901. outer tube; 902. inner rod; 903. elastic support member; 10. connecting rod; 1001. bending section; 11. adjusting mechanism; 1101. gear; 1102. rack; 1103. fastening bolt; 12. coil. DETAILED DESCRIPTION

[0020] 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. It should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood in specific circumstances. In addition, in the description of the utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0021] See also Figure 1-4 , the utility model provides an embodiment: a motor coil hot pressing device, comprising a base 1, a top plate 2 fixed to the top of the base 1 by a plurality of support rods 3, and a pressing plate 5 arranged between the base 1 and the top plate 2 by a lifting member 4 and moving up and down. In this embodiment, the lifting member 4 can be any one of a cylinder, a hydraulic telescopic rod, etc., which is vertically fixed to the top of the top plate 2, and the output end extends to the bottom end of the top plate 2 and is fixedly connected to the pressing plate 5. There are four support rods 3, and four sliding sleeves matching the support rods 3 are arranged on the pressing plate 5 to improve the stability of the up and down movement of the pressing plate 5. The base 1 and the top plate 2 are both provided with heating plates 6 on the opposite sides, and the heating plates 6 are all rectangular frame structures. A positioning frame 101 is provided on the top of the base 1, and the heating plate 6 is located inside the positioning frame 101. When the coil 12 is placed on the top of the heating plate 6, the coil 12 can be hot-pressed from both ends to improve its working efficiency. The positioning frame 101 can play a role in pre-positioning;

[0022] Two limit rods 8 are movably provided on both sides of the top of the base 1 through a linear drive member 7. The limit rod 8 is specifically a long strip structure with two ends penetrating. The linear drive member 7 is used to adjust the spacing between the two limit rods 8. In this embodiment, the linear drive member 7 includes a threaded rod 701 installed inside the base 1, a driving member for driving the threaded rod 701 to rotate, and two sliders 702 respectively fixed to the limit rods 8. The driving member can be specifically a hand wheel or a motor. The threaded rod 701 is provided with external threads in opposite directions at both ends along its length direction. The two sliders 702 are respectively threadedly connected to the two ends of the threaded rod 701. Through the rotation of the threaded rod 701, the two sliders 702 can be driven to move synchronously to the middle or to both sides. A strip through hole is penetrated at the top of the base 1 along the length direction of the threaded rod 701. The top of the slider 702 extends to the top of the base 1 through the strip sliding hole and is fixedly connected to the limit rod 8 respectively. In order to improve the stability of the movement of the limit rod 8, the limit rod 8 and the base 1 can be set to be slidably connected with a slide rail.

[0023] Two connecting rods 10 are movably arranged inside the limiting rod 8 along two sides perpendicular to the moving direction thereof through an adjusting mechanism 11. The two connecting rods 10 extend to the outside of the limiting rod 8 and are fixed with an inner support rod 9. The inner support rod 9 is vertically fixed to the top of the connecting rod 10. The adjusting mechanism 11 is used to synchronously adjust the length of the two connecting rods 10 extending to the outside of the limiting rod 8.

[0024] A bending section 1001 is fixed vertically outward at one end of the connecting rod 10, and the inner support rod 9 is fixed at the end of the bending section 1001 away from the connecting rod 10. The length of the bending section 1001 is greater than the width of each side of the heating plate 6. When the limiting rod 8 moves to the edge, the bending section 1001 extends to the top of the heating plate 6 and abuts against the coil 12.

[0025] The inner support rod 9 includes an outer tube 901 and an inner rod 902 which is movably arranged inside the outer tube 901 through an elastic support member 903. The elastic support member 903 is arranged at the bottom end inside the outer tube 901, and the top end of the elastic support member 903 is in contact with the bottom end of the inner rod 902. The elastic support member 903 can be a spring, which can play a certain buffering role before hot pressing, reducing the vibration force caused by the downward stamping of the pressing plate 5, which causes the outer tubes 901 to deviate;

[0026] The adjusting mechanism 11 includes a gear 1101 rotatably arranged in the middle of the limiting rod 8 and two racks 1102 respectively fixed at the opposite ends of the connecting rod 10. The two racks 1102 are respectively meshed with the radial ends of the gear 1101. At least one fastening bolt 1103 for fixing the connecting rod 10 is provided on the connecting rod 10. When working, any connecting rod 10 is pulled to slide horizontally left and right, and the rack 1102 slides horizontally synchronously to drive the middle gear 1101 to rotate, which can drive the other rack 1102 to slide synchronously in the opposite direction, thereby playing a role in adjusting the spacing. In this embodiment, a fastening bolt 1103 is provided, which is threadedly connected to the limiting rod 8, and its bottom end extends to the inside and abuts against the connecting rod 10. The fastening bolt 1103 can push the connecting rod 10 downward to play a fixing role.

[0027] Working principle: When working, first place the coil 12 on the outside of each inner support rod 9, and adjust the distance between the two limit rods 8 through the linear drive part 7 until the inner support rods 9 on both sides abut against the two sides of the length direction of the coil 12, then loosen the fastening bolts 1103, and pull the inner support rod 9 directly outward. The inner support rod 9 drives the connecting rod 10 and the rack 1102 to move outward synchronously, and the rack 1102 drives the gear 1101 to rotate, and then drives the rack 1102 and the connecting rod 10 on one side to extend synchronously to the other side until the four inner support rods 9 abut against the four corners of the coil 12, and the coil 12 is internally supported and positioned to prevent the coil 12 from deforming during the hot pressing process, and then the lifting part 4 is extended to push the pressing plate 5 downward, and the heating plate 6 is heated to perform hot pressing forming on the coil 12.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A motor coil hot pressing device, comprising a base (1), a top plate (2) fixed to the top of the base (1) by a plurality of support rods (3), and a pressing plate (5) movably arranged between the base (1) and the top plate (2) by a lifting member (4), wherein a heating plate (6) is arranged on opposite sides of the base (1) and the top plate (2), and the device is characterized in that: Two limit rods (8) are movably provided on both sides of the top of the base (1) through a linear drive member (7), the linear drive member (7) is used to adjust the spacing between the two limit rods (8), two connecting rods (10) are movably provided inside the limit rod (8) along both sides perpendicular to the moving direction thereof through an adjustment mechanism (11), the two connecting rods (10) extend to the outside of the limit rod (8) and are fixed with inner support rods (9), the inner support rods (9) are vertically fixed to the top of the connecting rods (10), and the adjustment mechanism (11) is used to synchronously adjust the length of the two connecting rods (10) extending to the outside of the limit rod (8).

2. The motor coil hot pressing device according to claim 1, characterized in that: The heating plates (6) are all rectangular frame structures.

3. The motor coil hot pressing device according to claim 1, characterized in that: A bent section (1001) is fixed vertically outward at one end of the connecting rod (10), and the inner support rod (9) is fixed at an end of the bent section (1001) away from the connecting rod (10).

4. The motor coil hot pressing device according to claim 1, characterized in that: The inner support rod (9) comprises an outer tube (901) and an inner rod (902) which is movably arranged inside the outer tube (901) via an elastic support member (903) up and down, the elastic support member (903) being arranged at the bottom end inside the outer tube (901), and the top end of the elastic support member (903) is in contact with the bottom end of the inner rod (902).

5. The motor coil hot pressing device according to claim 1, characterized in that: The adjustment mechanism (11) comprises a gear (1101) rotatably arranged in the middle of the limiting rod (8) and two racks (1102) respectively fixed to opposite ends of the connecting rod (10), the two racks (1102) respectively meshing with radial ends of the gear (1101), and at least one fastening bolt (1103) for fixing the connecting rod (10) is provided on the connecting rod (10).

6. The motor coil hot pressing device according to claim 1, characterized in that: A positioning frame (101) is provided at the top end of the base (1), and the heating plate (6) is located inside the positioning frame (101).

7. The motor coil hot pressing device according to claim 1, characterized in that: The linear drive member (7) comprises a threaded rod (701) installed inside the base (1), a drive member for driving the threaded rod (701) to rotate, and two sliders (702) respectively fixed to the limit rods (8); the threaded rod (701) is provided with external threads in opposite directions at both ends along its length direction, and the two sliders (702) are respectively threadedly connected to the two ends of the threaded rod (701).

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