A rotor injection strength detection jig

Abstract

The utility model relates to the technical field of strength detection, specifically relates to a rotor injection strength detection fixture, including operation platform, the upper portion of operation platform is equipped with the support column for supporting the iron core of waiting for detecting, the top of support column is equipped with the annular groove of waiting for detecting with the iron core inner wall recess groove adaptation, and the fixed mechanism for fixing support column is installed to the operation platform, the upper portion of operation platform is equipped with the lifting seat, and the lifting piece for driving lifting seat lifting is installed to the operation platform, and the below of lifting seat is equipped with a plurality of press the press column of waiting for detecting magnetic tile, a plurality of press the press column is even distribution in circle, and the adjusting structure for adjusting the position of press column horizontal direction is installed to the lifting seat, can carry out injection strength detection to different specifications's rotor, has improved the application scope.

Description

Technical Field

[0001] This utility model relates to the field of strength testing technology, and in particular to a rotor injection molding strength testing fixture. Background Technology

[0002] In the rotor production process, the installation of the magnet and the iron core is a key process in motor production. The magnet and the iron core are directly attracted by the magnetic attraction between them. Then, the rotor iron core with the magnet temporarily fixed is used as an "insert". This "insert" is placed into a special injection mold. The shape of the mold cavity determines the geometry of the final plastic-encased part. Molten engineering plastic is injected into the mold under high pressure. After the plastic cools and shrinks, the magnet and the iron core are fixed together through the injection shell.

[0003] However, it is worth considering that in the actual operation of the motor, the injection-molded housing needs to withstand various forces, and the thrust test is precisely to simulate these destructive forces. In the existing technology, the pressure head is generally driven to move down by a hydraulic telescopic rod. The pressure head applies pressure perpendicular to the surface of the magnetic tile until the magnetic tile is pushed away from the iron core or the injection-molded housing breaks. In this case, the horizontal position of the pressure head is not easy to adjust, and it can only be tested on rotors of specific specifications, which leads to poor versatility and high equipment investment costs.

[0004] Therefore, in order to solve the above problems, a more suitable facility that meets the needs of users is needed. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a rotor injection molding strength testing fixture to solve the problem that the horizontal position of the pressure head is not easy to adjust and can only be tested on rotors of specific specifications.

[0006] To achieve the above objectives, this utility model provides a rotor injection molding strength testing fixture, including an operating table. Above the operating table is a support column for supporting the iron core to be tested. The top of the support column is provided with an annular groove that matches the groove on the inner wall of the iron core. A fixing mechanism for fixing the support column is installed on the operating table. Above the operating table is a lifting seat, and on the operating table is a lifting component for driving the lifting seat to rise and fall. Below the lifting seat are several pressing columns for pressing the magnetic tile to be tested. The pressing columns are evenly distributed in a circle, and the lifting seat is equipped with an adjustment structure for adjusting the horizontal position of the pressing columns.

[0007] Preferably, the adjustment structure includes a movable block fixedly installed on the top of the pressing column, a plurality of first rectangular holes are provided on the lifting seat, and the movable block is slidably installed in the first rectangular holes. Guide grooves are provided on the inner walls of the two sides of the first rectangular holes, and guide blocks are slidably installed in the guide grooves. The guide blocks and the corresponding movable blocks are fixedly connected. A slider for driving the movable blocks to slide in the first rectangular holes is installed on the lifting seat.

[0008] Preferably, the slider includes a support frame fixedly installed on the top of the lifting seat, a turntable is rotatably sleeved on the outside of the support frame, a plurality of second rectangular holes are opened on the turntable, a movable column is slidably arranged in the second rectangular holes, and the top of the movable block and the bottom of the corresponding movable column are fixedly connected, and a pressing element for pressing the turntable is installed on the support frame.

[0009] Preferably, the pressing component includes a pressing ring disposed above the turntable, and at least one first hydraulic telescopic rod is fixedly connected to the support frame, with the telescopic end of the first hydraulic telescopic rod being fixedly connected to the top of the pressing ring.

[0010] Preferably, the bottom of the inner wall of the guide groove is provided with a clearance hole that is adapted to the guide block.

[0011] Preferably, the lifting component includes a fixed frame fixedly installed on the top of the operating table, and two second hydraulic telescopic rods are fixedly connected to the fixed frame, with the telescopic ends of the second hydraulic telescopic rods fixedly connected to the lifting seat.

[0012] Preferably, the fixing mechanism includes a fixing block fixedly installed on the top of the operating table, a sliding groove is provided on the fixing block, a slider is slidably arranged in the sliding groove, and the bottom end of the support column is fixedly connected to the slider. A slot is provided at the bottom of the slider, an insert rod passes through the fixing block, the top end of the insert rod is located in the slot, the bottom end of the insert rod is fixedly connected to a fixing plate located below the operating table, a tension spring is sleeved on the outside of the insert rod, and the two ends of the tension spring are fixedly connected to the top of the fixing plate and the operating table respectively.

[0013] The beneficial effects of this utility model are as follows: The inspector selects a support column that matches the iron core. The inspector places the molded part, in which the iron core and the magnetic tile are injection molded together, onto the outside of the support column. The annular groove on the support column supports the groove on the inner wall of the iron core. The inspector fixes the support column on the operating table using a fixing mechanism. The injection molded housing has a through hole to avoid the pressing column, so that the bottom end of the pressing column can pass through the through hole on the injection molded housing and be perpendicular to the upper surface of the magnetic tile to apply pressure. The horizontal position of the pressing column is adjusted by adjusting the structure so that the pressing column is directly above the through hole on the injection molded housing. Then, the lifting seat and the pressing column are driven to move down by the lifting component. The bottom end of the pressing column passes through the through hole on the injection molded housing and is perpendicular to the upper surface of the magnetic tile to apply pressure until the magnetic tile is pushed away from the iron core or the injection molded housing breaks. This allows for injection molding strength testing of rotors of different specifications, thus improving the applicability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the test state structure of an embodiment of the present utility model; Figure 3 A schematic diagram showing the adjusted structure of this utility model embodiment; Figure 4 This is a schematic diagram showing the disassembled structure of the movable block and the lifting seat in an embodiment of this utility model; Figure 5 This is a schematic diagram showing the disassembled structure of the fixing block and the slider in an embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of the iron core, magnetic tile, and injection-molded shell after injection molding, according to an embodiment of this utility model.

[0016] The diagram is marked as follows: 1. Operating platform; 2. Support column; 3. Lifting seat; 4. Pressing column; 5. Movable block; 6. First rectangular hole; 7. Guide groove; 8. Guide block; 9. Clearance hole; 10. Turntable; 11. Support frame; 12. Second rectangular hole; 13. Movable column; 14. First hydraulic telescopic rod; 15. Pressing ring; 16. Fixed frame; 17. Second hydraulic telescopic rod; 18. Fixed block; 19. Slide groove; 20. Slider; 21. Slot; 22. Insert rod; 23. Fixed plate; 24. Tension spring; 25. Annular groove; 31. Iron core; 32. Magnet tile; 33. Injection molded shell. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] This specification provides one or more embodiments of a rotor injection molding strength testing fixture, such as... Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, it includes an operating table 1, and a support column 2 for supporting the iron core 31 to be tested is provided above the operating table 1. The top of the support column 2 is provided with an annular groove 25 that matches the groove of the inner wall of the iron core 31. A fixing mechanism for fixing the support column 2 is installed on the operating table 1. Above the operating table 1 is a lifting seat 3. The operating table 1 is equipped with a lifting component for driving the lifting seat 3 to rise and fall. Below the lifting seat 3 are several pressing columns 4 for pressing the magnetic tile 32 to be tested. The pressing columns 4 are evenly distributed circumferentially. The lifting seat 3 is equipped with an adjustment structure for adjusting the horizontal position of the pressing columns 4. The inspector selects a support column 2 that matches the iron core 31. The inspector places the molded part, consisting of the iron core 31 and the magnetic tile 32, onto the outside of the support column 2. The annular groove 25 on the support column 2 supports the groove on the inner wall of the iron core 31. The inspector fixes the support column 2 onto the operating table 1 using a fixing mechanism. The injection-molded housing 33 is equipped with... There is a through hole for avoiding the pressing column 4, so that the bottom end of the pressing column 4 can pass through the through hole on the injection molded housing 33, perpendicular to the upper surface of the magnetic tile 32 and apply pressure. The horizontal position of the pressing column 4 is adjusted by adjusting the structure so that the pressing column 4 is directly above the through hole on the injection molded housing 33. Then, the lifting seat 3 and the pressing column 4 are driven to move down by the lifting component. The bottom end of the pressing column 4 passes through the through hole on the injection molded housing 33, and the bottom end of the pressing column 4 passes through the through hole on the injection molded housing 33, perpendicular to the upper surface of the magnetic tile 32 and applies pressure until the magnetic tile 32 is pushed away from the iron core 31 or the injection molded housing 33 breaks. The injection strength of rotors of different specifications can be tested, which improves the applicability.

[0020] In embodiments of this utility model, such as Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the adjustment structure includes a movable block 5 fixedly installed on the top of the pressing column 4. The lifting base 3 has several first rectangular holes 6, and the movable block 5 is slidably installed within the first rectangular holes 6. Guide grooves 7 are respectively provided on the inner walls of both sides of the first rectangular holes 6. Guide blocks 8 are slidably installed within the guide grooves 7, and the guide blocks 8 and their corresponding movable blocks 5 are fixedly connected. A slider for driving the movable block 5 to slide within the first rectangular holes 6 is installed on the lifting base 3. The slider includes a support frame 11 fixedly installed on the top of the lifting base 3. The support frame 11 has an outer... A rotating disc 10 is fitted onto the rotating block 5. The disc 10 has several second rectangular holes 12. Movable columns 13 slide within the second rectangular holes 12. The top of the movable block 5 is fixedly connected to the bottom of the corresponding movable column 13. A pressing element for pressing the disc 10 is mounted on the support frame 11. The pressing element includes a pressing ring 15 positioned above the disc 10. At least one first hydraulic telescopic rod 14 is fixedly connected to the support frame 11, and the telescopic end of the first hydraulic telescopic rod 14 is fixedly connected to the top of the pressing ring 15. The bottom of the inner wall of the guide groove 7 is open... An clearance hole 9 is provided to match the guide block 8. The inspector drives the turntable 10 to rotate relative to the support frame 11 and the lifting seat 3. The turntable 10 pushes the movable column 13 to slide in the second rectangular hole 12. The movable column 13 drives the movable block 5 to slide in the first rectangular hole 6, and the movable block 5 drives the guide block 8 to slide in the guide groove 7. This allows the horizontal position of the pressing column 4 to be adjusted. The pressing ring 15 is driven to move down by the first hydraulic telescopic rod 14. The pressing ring 15 presses the top of the turntable 10 to fix the turntable 10 relative to the support frame 11 and the lifting seat 3. The pressing column 4 can be fixed in this way. When the pressing column 4 needs to be removed, the first hydraulic telescopic rod 14 drives the pressing ring 15 to move upward, so that the turntable 10 can rotate relative to the support frame 11 and the lifting seat 3. The inspector drives the turntable 10 to rotate again, so that the pressing column 4 continues to move. The movable block 5 drives the guide block 8 to slide in the guide groove 7. When the guide block 8 slides to the top of the avoidance hole 9, the guide block 8 can slide out of the guide groove 7 through the avoidance hole 9, and the movable block 5 slides out of the first rectangular hole 6, which makes it easy to replace the pressing column 4.

[0021] In embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 5As shown, the lifting component includes a fixed frame 16 fixedly installed on the top of the operating platform 1. Two second hydraulic telescopic rods 17 are fixedly connected to the fixed frame 16, and the telescopic ends of the second hydraulic telescopic rods 17 are fixedly connected to the lifting seat 3. The fixing mechanism includes a fixed block 18 fixedly installed on the top of the operating platform 1. A slide groove 19 is provided on the fixed block 18, and a slider 20 is slidably arranged in the slide groove 19. The bottom end of the support column 2 is fixedly connected to the slider 20. A slot 21 is provided at the bottom of the slider 20. An insert rod 22 passes through the fixed block 18. The top end of the insert rod 22 is located in the slot 21. The bottom end of the insert rod 22 is fixedly connected to a fixed plate 23 located below the operating platform 1. A tension spring 24 is sleeved on the outside of the insert rod 22. Both ends are fixedly connected to the top of the fixed plate 23 and the operating table 1, respectively. The lifting seat 3 is driven to move vertically by the second hydraulic telescopic rod 17, so that the magnetic tile 32 can be pressed by the pressing column 4. The inspector drives the fixed plate 23 and the insertion rod 22 to move down, and the tension spring 24 is in the tension state to prevent the top of the insertion rod 22 from interfering with the sliding block 20 sliding into the slide groove 19. Then, the inspector drives the sliding block 20 to slide into the slide groove 19 by the support column 2, and the slot 21 moves above the insertion rod 22. The inspector releases the fixed plate 23, and the tension spring 24 drives the fixed plate 23 and the insertion rod 22 to move up, so that the top of the insertion rod 22 is inserted into the slot 21, so that the sliding block 20 and the support column 2 are fixed relative to the fixed block 18 and the operating table 1.

[0022] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0023] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rotor injection molding strength testing fixture, comprising an operating table (1), characterized in that, The operating table (1) is provided with a support column (2) for supporting the iron core (31) to be tested. The top of the support column (2) is provided with an annular groove (25) that matches the groove of the inner wall of the iron core (31). The operating table (1) is equipped with a fixing mechanism for fixing the support column (2). The operating table (1) is provided with a lifting seat (3) above it. The operating table (1) is equipped with a lifting component for driving the lifting seat (3) to rise and fall. The lifting seat (3) is provided with several pressing columns (4) for pressing the magnetic tile (32) to be tested below it. The pressing columns (4) are evenly distributed in a circle. The lifting seat (3) is equipped with an adjustment structure for adjusting the horizontal position of the pressing columns (4).

2. The rotor injection molding strength testing fixture according to claim 1, characterized in that, The adjustment structure includes a movable block (5) fixedly installed on the top of the pressing column (4), a plurality of first rectangular holes (6) are provided on the lifting seat (3), and the movable block (5) is slidably installed in the first rectangular hole (6). Guide grooves (7) are provided on the inner walls of the two sides of the first rectangular hole (6), and guide blocks (8) are slidably provided in the guide grooves (7). The guide blocks (8) and the corresponding movable blocks (5) are fixedly connected. A slider for driving the movable block (5) to slide in the first rectangular hole (6) is installed on the lifting seat (3).

3. The rotor injection molding strength testing fixture according to claim 2, characterized in that, The slider includes a support frame (11) fixedly installed on the top of the lifting seat (3). A turntable (10) is rotatably sleeved on the outside of the support frame (11). A number of second rectangular holes (12) are opened on the turntable (10). Movable columns (13) are slidably arranged in the second rectangular holes (12). The top of the movable block (5) and the bottom of the corresponding movable column (13) are fixedly connected. A pressing component for pressing the turntable (10) is installed on the support frame (11).

4. The rotor injection molding strength testing fixture according to claim 3, characterized in that, The pressing component includes a pressing ring (15) disposed above the turntable (10), and at least one first hydraulic telescopic rod (14) is fixedly connected to the support frame (11), and the telescopic end of the first hydraulic telescopic rod (14) is fixedly connected to the top of the pressing ring (15).

5. The rotor injection molding strength testing fixture according to claim 2, characterized in that, The bottom of the inner wall of the guide groove (7) is provided with a clearance hole (9) that is adapted to the guide block (8).

6. The rotor injection molding strength testing fixture according to claim 1, characterized in that, The lifting component includes a fixed frame (16) fixedly installed on the top of the operating table (1), and two second hydraulic telescopic rods (17) are fixedly connected on the fixed frame (16), and the telescopic ends of the second hydraulic telescopic rods (17) are fixedly connected to the lifting seat (3).

7. The rotor injection molding strength testing fixture according to claim 1, characterized in that, The fixing mechanism includes a fixing block (18) fixedly installed on the top of the operating table (1). A groove (19) is provided on the fixing block (18). A slider (20) is slidably provided in the groove (19). The bottom end of the support column (2) is fixedly connected to the slider (20). A slot (21) is provided at the bottom of the slider (20). A rod (22) passes through the fixing block (18). The top end of the rod (22) is located in the slot (21). The bottom end of the rod (22) is fixedly connected to a fixing plate (23) located below the operating table (1). A tension spring (24) is sleeved on the outside of the rod (22). The two ends of the tension spring (24) are fixedly connected to the top of the fixing plate (23) and the operating table (1), respectively.

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