Motor magnetic steel fixing tool

Abstract

The invention relates to the technical field of motor production equipment, and discloses a motor magnetic steel fixing tool which comprises a lower jacking assembly, the lower jacking assembly comprises a lower jacking air cylinder, the lower jacking air cylinder is fixedly connected with a guide plate, forming templates are arranged at the positions, corresponding to an iron core magnetic groove, of the guide plate, an iron sheet is arranged in the iron core magnetic groove, and the lower jacking air cylinder is fixedly connected with the guide plate. When the forming template moves upwards along with the guide plate, the iron sheets are deformed, an accommodating space with a wide upper part and a narrow lower part is formed between the two iron sheets, and the upper part of the accommodating space is enough for placing magnetic steel. According to the motor magnetic steel fixing tool, the iron sheets at the ends of the magnetic grooves are used for fixing the magnetic steel, the performance of a motor is guaranteed, noise is reduced, meanwhile, the magnetic steel can be taken out for secondary fixing, later maintenance is facilitated, and the service life is prolonged. Meanwhile, the feeder and the feeder are matched for feeding, the automation degree is high, the production efficiency is high, and compared with a mode of fixing the magnetic steel through glue, the production efficiency is higher.

Description

Technical Field

[0001] The present application relates to the technical field of motor production equipment, and in particular to a motor magnetic steel fixing tool. Background Art

[0002] At present, the common methods of fixing the magnets on permanent magnet motors are to fix them with glue or to give up fixing. If fixing is given up, the magnets will move in the magnet slots when the motor rotates, which will damage the magnets and reduce the motor performance. If fixing with glue is used, it is necessary to wait for the glue to solidify during production, which takes a long time to process and cannot be repaired, and increases production costs. Summary of the invention

[0003] The present application proposes a motor magnet fixing tool, which uses iron sheets at the ends of magnetic slots to fix the magnets, thereby ensuring the performance of the motor, while having a high degree of automation and high work efficiency.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a motor magnet fixing tool, including a workbench, a positioning seat is provided on the workbench, the positioning seat is connected up and down, a lower top assembly is provided below the positioning seat, a feeder is provided on the side of the positioning seat, the feeder is used to place the magnet and put the magnet into the feeder one by one, a feeder is provided on one side of the feeder, the feeder transports the magnet to the top of the positioning seat, a pressing assembly is provided above the positioning seat, the pressing assembly presses the magnet transported to the top of the positioning seat into the iron core, the lower top assembly includes a lower top cylinder, the lower top cylinder is fixedly connected with a guide plate, the positions of the guide plate corresponding to the magnetic grooves of the iron core are provided with forming templates, an iron sheet is provided in the magnetic groove of the iron core, the forming template deforms the iron sheet as the guide plate moves upward, and a accommodating space that is wide at the top and narrow at the bottom is formed between the two iron sheets, the upper part of the accommodating space is large enough for the magnet to be placed in, and the lower part of the accommodating space is smaller than the magnet.

[0005] Furthermore, the forming template includes two extrusion columns, and the spacing between two extrusion columns in the same group gradually widens from bottom to top. The spacing above the two extrusion columns is greater than the spacing between the two groups of iron sheets and greater than the width of the magnetic steel. The spacing below is less than the width of the magnetic steel, and the spacing between the two groups of iron sheets is greater than the width of the magnetic steel.

[0006] Furthermore, the positioning seat includes a guide seat, and the guide seat is provided with a through groove for the extrusion column to pass through at a position corresponding to the extrusion column. The guide seat is also provided with a first positioning column, and the first positioning column corresponds to the position of the iron core positioning hole. A second positioning column is provided on the guide plate, and a second positioning hole corresponding to the second positioning column is provided on the guide seat.

[0007] Furthermore, the iron sheet is L-shaped, the end of the iron sheet is fixedly connected to the short side of the magnetic slot, the extrusion column is inserted from the space enclosed by the iron sheet and the short side of the magnetic slot, and the iron sheet is diagonally arranged.

[0008] Furthermore, each of the forming templates includes two forming columns and a pressing block. The forming columns are fixedly connected to the guiding plate. The guiding plate is provided with a moving block, which is fixedly connected to the forming column. A spring is arranged between the moving block and the guiding plate. The positioning seat is provided with an activity groove for the forming column and the pressing block to pass through and move. From bottom to top, the outermost spacing between the two forming columns along the long side and the short side directions of the magnetic groove gradually increases, and the outermost spacing along the long side direction of the magnetic groove is greater than the long side length of the magnet, the outermost spacing at the lower side is less than the long side length of the magnet, the outermost spacing along the short side direction of the magnetic groove is greater than the short side length of the magnet, and the outermost spacing at the lower side is less than the short side length of the magnet. Along the short side direction of the magnetic groove, the opposite faces of the forming column and the pressing block are parallel to each other. The initial position of the forming column is in close contact with the end of the magnetic groove. The iron plate is located between the forming column and the pressing block. A second wedge block is arranged on the forming column, and a first wedge block is arranged on the guiding plate. When the guiding plate moves upward, the first wedge block and the second wedge block interact to push the forming column to move.

[0009] Furthermore, the iron core is provided with side grooves corresponding to the positions of the iron sheets, and the side grooves accommodate the overly long iron sheets and the bent iron sheets.

[0010] Furthermore, the iron sheet is in an "L" shape, and the end of the iron sheet is bent towards the short side of the magnetic groove.

[0011] Furthermore, a limiting block is arranged at the position of the side groove corresponding to the end of the iron sheet, and the limiting block is used to prevent the end of the iron sheet from retracting. After the forming column moves, the end of the iron sheet can cross over the limiting block.

[0012] Furthermore, the feeder includes a placement groove, in which a push and press plate is movably connected. An activity baffle is arranged at the end of the placement groove. The activity baffle is connected to a feeding cylinder, and the moving direction of the feeding cylinder is perpendicular to the placement groove. A receiving groove capable of accommodating the magnet is arranged at the end of the activity baffle. The placement groove is provided with a slot for the activity baffle to penetrate in and out. The receiving groove has a lower opening, and when the receiving groove moves out, the magnet will fall under the action of gravity.

[0013] Furthermore, the feeder includes a guiding rail that aligns with the magnetic groove. A moving seat is movably connected to the guiding rail. The moving seat is fixedly connected to a feeding box, and the feeding box is open at both the top and the bottom. The top of the feeding box is lower than the bottom of the activity baffle. The feeding box can accommodate the magnet. The moving seat is connected to a feeding cylinder. When the moving seat moves to the two extreme positions, the feeding box is respectively aligned with the magnetic groove or the receiving groove.

[0014] The beneficial effects of the present invention:

[0015] A motor magnet fixing tooling provided by the present application uses the iron sheets at the ends of the magnetic grooves to fix the magnets, ensuring the performance of the motor, reducing noise. At the same time, the magnets can be taken out for secondary fixing, which is convenient for later maintenance and improves the service life.

[0016] The feeding is carried out by using a feeder and a feeder, which has a high degree of automation and high production efficiency. Compared with the method of fixing magnetic steel with glue, the production efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of the specification, illustrate the embodiments disclosed in the present application and, together with the description, serve to explain the principles of the embodiments disclosed in the present application.

[0018] The embodiments disclosed in the present application may be more clearly understood according to the following detailed description with reference to the accompanying drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0020] Figure 2 It is a schematic diagram of a positioning seat in the first embodiment of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the lower top assembly in Embodiment 1 of the present invention;

[0022] Figure 4 A top view of the positioning seat in the first embodiment of the present invention;

[0023] Figure 5 For the present invention Figure 1 A magnified view of middle;

[0024] Figure 6 A top view of the first embodiment of the present invention;

[0025] Figure 7 It is a partial schematic diagram of the second embodiment of the present invention;

[0026] Figure 8 For the present invention Figure 7 Sectional view at the middle BB;

[0027] Fig. 9 It is a schematic diagram of a positioning seat in the second embodiment of the present invention;

[0028] Fig.10 It is a partial schematic diagram of the second embodiment of the present invention after the magnetic steel is fixed.

[0029] In the figure: 1. workbench; 2. positioning seat; 21. guide seat; 22. first positioning column; 23. through groove; 3. lower top assembly; 31. lower top cylinder; 32. second positioning column; 33. extrusion column; 34. guide plate; 35. movable groove; 36. moving block; 37. forming column; 38. pressing block; 39. first wedge block; 310. second wedge block; 4. feeder; 41. placement groove; 42. push plate; 43. movable baffle; 44. feeding cylinder; 45. containing groove; 5. feeder; 51. guide rail; 52. telescopic block; 53. feeding box; 54. feeding cylinder; 6. pressing assembly; 7. iron core; 71. first iron sheet; 72. second iron sheet; 73. side groove; 74. limit block; 8. magnetic steel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] Embodiment 1

[0032] See also Figure 1 A motor magnetic steel fixing tooling comprises a workbench 1, a positioning seat 2 is provided on the workbench 1, the positioning seat 2 is fixedly installed in the middle of the workbench 1 by bolts, an iron core 7 is placed in the positioning seat 2, the positioning seat 2 is passed through from top to bottom, a lower top assembly 3 is provided below the positioning seat 2, the lower top assembly 3 is fixedly installed at the bottom of the lower top assembly 3, a feeder 4 is provided on the side of the positioning seat 2, a feeder 5 is provided on one side of the feeder 4, the feeder 4 and the feeder 5 cooperate to transport the magnetic steel 8 to the top of the positioning seat 2, a pressing assembly 6 is provided above the positioning seat 2, and the pressing assembly 6 presses the magnetic steel 8 into the iron core 7.

[0033] See also Figure 2 and Figure 3 The lower top assembly 3 includes a lower top cylinder 31, which is fixedly connected to a guide plate 34. A group of extrusion columns 33 are provided on the guide plate 34 at positions corresponding to the magnetic grooves of the iron core 7. Each group of extrusion columns 33 includes two extrusion columns 33. The positioning seat 2 includes a guide seat 21. The guide seat 21 is fixed on the workbench 1. The guide seat 21 is provided with a through groove 23 for the extrusion columns 33 to pass through at positions corresponding to the extrusion columns 33. The guide seat 21 is also provided with a first positioning column 22, which corresponds to the position of the positioning hole of the iron core 7. A second positioning column 32 is provided on the guide plate 34, and a second positioning hole corresponding to the second positioning column 32 is provided on the guide seat 21. The cooperation of the positioning column and the positioning hole ensures that the positions of the magnetic groove, the magnetic steel 8, and the extrusion column 33 are always aligned.

[0034] An iron sheet is provided on the iron core 7, and iron sheets are provided at both ends of the magnetic groove. The iron sheet is fixedly connected to the iron core 7 and can be deformed. The iron sheet is directly milled out when the iron core 7 is processed. The spacing between the two extrusion columns 33 in the same group gradually widens from bottom to top, and the spacing above the two extrusion columns 33 is greater than the spacing between the two groups of iron sheets, and greater than the width of the magnetic steel 8. The spacing below is less than the gap between the two groups of iron sheets, and less than the width of the magnetic steel 8. The spacing between the two groups of iron sheets is greater than the width of the magnetic steel 8, and a gap is left in the magnetic groove for the extrusion column 33 to pass upward.

[0035] When assembling the magnetic steel 8, the lower top assembly 3 moves upward. When the lower top assembly 3 moves upward, it gradually squeezes the iron sheet inward to deform the iron sheet, making the iron sheet wider at the top and narrower at the bottom. The feeder 4 and the feeder 5 cooperate to send the magnetic steel 8 to the top of the iron core 7. The pressing assembly 6 moves downward to press the magnetic steel 8 into the magnetic groove. The iron sheet clamps the magnetic steel 8 to fix the magnetic steel 8.

[0036] See also Figure 4 The iron sheet 71 is L-shaped, the end of the iron sheet is fixedly connected to the short side of the magnetic slot, the extrusion column 33 is inserted from the space surrounded by the iron sheet and the short side of the magnetic slot, the extrusion column 33 squeezes the iron sheet to deform the iron sheet, and the first iron sheet 71 of the steel sheet is diagonally arranged.

[0037] See also Figure 5 and Figure 6 The feeder 4 includes a placement slot 41, which is fixedly mounted on the workbench 1. A push plate 42 is movably connected in the placement slot 41, and the push plate 42 slides along the placement slot 41. A movable baffle 43 is provided at the end of the placement slot 41. Multiple pieces of magnetic steel 8 are placed between the movable baffle 43 and the push plate 42. The movable baffle 43 and the push plate 42 clamp the magnetic steel 8. The movable baffle 43 is connected to a feeding cylinder 44, which pushes the movable baffle 43 to move. The movement direction of the feeding cylinder 44 is perpendicular to the placement slot 41. A receiving slot 45 capable of accommodating the magnetic steel 8 is provided at the end of the movable baffle 43. The placement slot 41 is provided with a slot hole for the movable baffle 43 to penetrate in and out. The depth of the receiving slot 45 is similar to the thickness of the channel steel, and the depth is slightly smaller than the thickness of the magnetic steel 8, so as to prevent it from pushing two pieces of magnetic steel 8 to move at the same time. Each time the movable baffle 43 moves, a piece of magnet 8 is pushed to move, and the receiving slot 45 opens downward. When the receiving slot 45 moves out, the magnet 8 will fall down under the action of gravity.

[0038] The feeder 5 includes a guide rail 51, which is aligned with the magnetic groove. A movable seat 52 is movably connected to the guide rail 51, and a feeding box 53 is fixedly connected to the movable seat 52. The feeding box 53 is opened at the top and bottom, and the top of the feeding box 53 is lower than the bottom of the movable baffle 43. The feeding box 53 can accommodate the magnet 8. The movable seat 52 is connected to a feeding cylinder 54, and the feeding cylinder 54 pushes the movable seat 52 to move.

[0039] In this embodiment, the number of feeders 4 and feeders 5 corresponds to the number of magnetic grooves. There are four groups of magnetic grooves, and there are also four groups of feeders 4 and feeders 5. In other embodiments, there is only one group of feeders 4 and feeders 5. A rotating device is provided on the positioning seat 2, and the positioning seat 2 is rotated to align each magnetic groove with the guide rail 51 in turn.

[0040] Embodiment 2

[0041] The method of embodiment 1 can only constrain the two ends of the magnetic steel 8 and can only constrain one direction. The constraining ability in the other direction is poor. In order to ensure enhanced fixing ability, on the basis of embodiment 1, the extrusion column 33 is replaced by a forming column 37 and a pressing block 38.

[0042] See also Figure 7 and Figure 8 Each magnetic groove is provided with a group of forming columns 37 and pressing blocks 38, and each group of forming columns 37 and pressing blocks 38 has two corresponding forming columns 37 and pressing blocks 38. The forming columns 37 are fixedly connected to the guide plate 34, and the guide plate 34 is provided with a moving block 36. The moving block 36 is fixedly connected with the forming columns 37. A spring is provided between the moving block 36 and the guide plate 34. The positioning seat 2 is provided with a movable groove 35 for the forming columns 37 and the pressing blocks 38 to pass through and move. From bottom to top, the outermost spacings of the two forming columns 37 along the long side and the short side of the magnetic groove gradually increase, and the outermost spacing along the long side of the magnetic groove is greater than the long side length of the magnetic steel 8, the outermost spacing on the lower side is less than the long side length of the magnetic steel 8, and the outermost spacing along the short side of the magnetic groove 8 is greater than the short side length of the magnetic steel 8. The outermost spacing is smaller than the short side length of the magnetic steel 8. Along the short side direction of the magnetic groove, the relative surfaces of the forming column 37 and the pressing block 38 are parallel to each other. The moving block 36 moves along the long side of the magnetic groove. The initial position of the forming column 37 is close to the end of the magnetic groove. The steel sheet is located between the forming column 37 and the pressing block 38. A second wedge block 310 is provided on the forming column 37, and a first wedge block 39 is provided on the guide plate 34. When the guide plate 34 moves upward, the first wedge block 39 and the second wedge block 310 interact with each other to push the forming column 37 to move. The forming column 37 deforms the iron sheet and presses against the outer side of the pressing block 38. Then the guide plate 34 descends, and the forming column 37 and the pressing block 38 are pulled out. When the magnetic steel 8 is pressed in, the diagonal position of the magnetic plate is gradually wrapped by the iron sheet, which has a good limiting effect in both directions and improves the fixing effect.

[0043] Since the iron sheet can wrap around the corners of the magnetic steel 8, in order to prevent the short side of the magnetic groove from being too large, the iron core 7 is provided with a side groove 73 corresponding to the position of the iron sheet, and the side groove 73 accommodates the excessively long iron sheet and the bent iron sheet.

[0044] In order to reduce the opening area of ​​the side groove 73 , the tail of the second iron sheet 72 is bent toward the short side of the magnetic groove.

[0045] In order to ensure that the second iron sheet 72 has sufficient binding capacity after bending, a limit block 74 is provided at the position of the side groove 73 corresponding to the end of the second iron sheet 72. The limit block 74 is used to prevent the end of the second iron sheet 72 from retreating. The forming column 37 moves long enough to enable the end of the second iron sheet 72 to pass over the limit block 74. When the magnetic steel 8 is pressed in, the second iron sheet 72 is deformed again, and the end of the second iron sheet 72 is close to the limit block 74.

[0046] After the iron core 7 is placed on the positioning seat 2, the guide plate 34 moves upward. When the guide plate 34 rises to a certain height, the first wedge block 39 and the second wedge block 310 interact with each other to push the forming column 37 to move. The forming column 37 drives the second iron sheet 72 to move along the side of the pressing block 38, so that a part of the second iron sheet 72 is close to the pressing block 38, and the other part moves and bends along the side groove 73. The end of the second iron sheet 72 passes over the limit block 74. When the magnetic steel 8 is pressed in, the opposite side of the magnetic steel 8 and its vicinity are wrapped by the second iron sheet 72 to form a constraint.

Claims

1. A motor magnetic steel fixing tool, comprising a workbench (1), a positioning seat (2) is provided on the workbench (1), the positioning seat (2) is connected from top to bottom, a lower top assembly (3) is provided below the positioning seat (2), a feeder (4) is provided on the side of the positioning seat (2), the feeder (4) is used to place magnetic steel, and put the magnetic steel into a feeder (5) one by one, a feeder (5) is provided on one side of the feeder (4), the feeder (5) transports the magnetic steel to the top of the positioning seat (2), a pressing assembly (6) is provided above the positioning seat (2), the pressing assembly (6) presses the magnetic steel transported to the top of the positioning seat (2) into the iron core, characterized in that: The lower top assembly (3) comprises a lower top cylinder (31), the lower top cylinder (31) is fixedly connected to a guide plate (34), a forming template is provided at a position on the guide plate (34) corresponding to the magnetic groove of the iron core (7), an iron sheet is provided in the magnetic groove of the iron core (7), and the forming template deforms the iron sheet when the guide plate (34) moves upward, so that a accommodating space with a width at the top and a narrowness at the bottom is formed between the two iron sheets, the upper part of the accommodating space is large enough to accommodate the magnetic steel, and the lower part of the accommodating space is smaller than the magnetic steel.

2. The motor magnetic steel fixing fixture according to claim 1, characterized in that: The forming template comprises two extrusion columns (33), the spacing between the two extrusion columns (33) in the same group gradually widens from bottom to top, the spacing above the two extrusion columns (33) is greater than the spacing between the two groups of iron sheets and greater than the width of the magnetic steel, the spacing below is less than the width of the magnetic steel, and the spacing between the two groups of iron sheets is greater than the width of the magnetic steel.

3. The motor magnetic steel fixing fixture according to claim 2, characterized in that: The positioning seat (2) comprises a guide seat (21), the guide seat (21) being provided with a through slot (23) for the extrusion column (33) to pass through at a position corresponding to the extrusion column (33), the guide seat (21) being further provided with a first positioning column (22), the first positioning column (22) corresponding to the position of the positioning hole of the iron core (7), the guide plate (34) being provided with a second positioning column (32), and the guide seat (21) being provided with a second positioning hole corresponding to the second positioning column (32).

4. The motor magnetic steel fixing fixture according to claim 3 is characterized in that: The iron sheet is L-shaped, the end of the iron sheet is fixedly connected to the short side of the magnetic slot, the extrusion column (33) is inserted from the space surrounded by the iron sheet and the short side of the magnetic slot, and the iron sheet is arranged diagonally.

5. The motor magnetic steel fixing fixture according to claim 1, characterized in that: Each of the forming templates includes two forming columns (37) and a pressing block (38). The forming columns (37) are fixedly connected to the guide plate (34). The guide plate (34) is provided with a moving block (36), and the moving block (36) is fixedly connected to the forming column (37). A spring is provided between the moving block (36) and the guide plate (34). The positioning seat (2) is provided with a movable slot (35) for the forming column (37) and the pressing block (38) to pass through and move. From bottom to top, the outermost spacing between the two forming columns (37) along the long side and the short side directions of the magnetic slot gradually increases, and the outermost spacing along the long side direction of the magnetic slot is greater than the long side length of the magnet, the outermost spacing at the lower side is less than the long side length of the magnet, the outermost spacing along the short side direction of the magnetic slot is greater than the short side length of the magnet, and the outermost spacing at the lower side is less than the short side length of the magnet. Along the short side direction of the magnetic slot, the opposite faces of the forming column (37) and the pressing block (38) are parallel to each other. The initial position of the forming column (37) is in close contact with the end of the magnetic slot. The iron plate is located between the forming column (37) and the pressing block (38). The forming column (37) is provided with a second wedge block (310), and the guide plate (34) is provided with a first wedge block (39). When the guide plate (34) moves upward, the first wedge block (39) and the second wedge block (310) interact to push the forming column (37) to move.

6. The motor magnetic steel fixing fixture according to claim 1, characterized in that: The iron core (7) is provided with a side slot (73) corresponding to the position of the iron sheet. The side slot (73) accommodates the overlong iron sheet and the bent iron sheet.

7. The motor magnetic steel fixing fixture according to claim 1, characterized in that: The iron sheet is in an "L" shape, and the end of the iron sheet is bent towards the short side of the magnetic slot.

8. The motor magnetic steel fixing fixture according to claim 1, characterized in that: The side slot (73) is provided with a limiting block (74) corresponding to the position of the end of the iron sheet. The limiting block (74) is used to prevent the end of the iron sheet from retracting. After the forming column (37) moves, the end of the iron sheet can cross over the limiting block (74).

9. The motor magnetic steel fixing tool according to any one of claims 1 to 8, characterized in that: The feeder (4) includes a placement slot (41). A push-press plate (42) is movably connected in the placement slot (41). An active baffle (43) is provided at the end of the placement slot (41). The active baffle (43) is connected to a feeding cylinder (44). The moving direction of the feeding cylinder (44) is perpendicular to the placement slot (41). The end of the active baffle (43) is provided with a receiving slot (45) capable of accommodating the magnet. The placement slot (41) is provided with a slot hole for the active baffle (43) to penetrate in and out. The receiving slot (45) has a lower opening. When the receiving slot (45) moves out, the magnet will fall under the action of gravity.

10. The motor magnetic steel fixing fixture according to any one of claim 9, characterized in that: The feeder (5) includes a guide rail (51). The guide rail (51) is aligned with the magnetic slot. A moving seat (52) is movably connected to the guide rail (51). The moving seat (52) is fixedly connected to a feeding box (53). The feeding box (53) is open at both the top and the bottom. The top of the feeding box (53) is lower than the bottom of the active baffle (43). The feeding box (53) can accommodate the magnet. The moving seat (52) is connected to a feeding cylinder (54). When the moving seat (52) moves to the two extreme positions, the feeding box (53) is respectively aligned with the magnetic slot or the receiving slot (45).

Images