Pneumatic clamping device of magnetizer

Abstract

The pneumatic clamping device comprises a magnetizing table, a door-shaped supporting frame, a main control air cylinder and a clamping assembly, a magnetizing bin is arranged on the top end face of the magnetizing table, the door-shaped supporting frame is arranged at the position where the magnetizing bin is located, the door-shaped supporting frame is fixedly connected with the magnetizing table, the main control air cylinder is installed at the top end of the door-shaped supporting frame, and the clamping assembly is fixedly connected with the main control air cylinder. The clamping assembly is installed in the door-shaped supporting frame, a first movable rod is arranged on the main control air cylinder, the first movable rod penetrates through the door-shaped supporting frame and then is connected with the top end of the clamping assembly, the clamping assembly comprises a limiting frame, a pushing assembly and two clamping pieces, the pushing assembly is installed on the limiting frame, and the clamping pieces are installed in the limiting frame; the clamping pieces are distributed in the limiting frame in a bilateral symmetry mode and connected with the pushing assembly, and the positions of the clamping pieces correspond to the position of the magnetizing bin in an up-down mode. The clamping device has the advantages of being convenient to operate and high in clamping work efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field related to magnetizers, in particular to a pneumatic clamping device for a magnetizer. Background Art

[0002] A magnetizer is a device used for magnetization, commonly used in the manufacturing and maintenance of electrical equipment such as motors, generators, transformers, and sensors. The magnetizer has a relatively simple structure and is essentially an extremely strong electromagnet equipped with iron blocks of various shapes as additional poles to form a closed magnetic circuit with the magnetized object. During magnetization, the additional poles and the magnetized object are arranged, and magnetization is completed instantly by applying an excitation current. The positioning and clamping devices used in existing magnetizers can only magnetize magnets within a small range of specifications, making them less practical and incompatible with existing magnetizers and magnetizing tables on the market. They are cumbersome to operate and inefficient.

[0003] China Patent Authorization Announcement No.: CN 220526691 U, authorization announcement date February 23, 2024, discloses a magnetizer clamping structure, including a fixed base and a magnetizer body installed on one side of the top of the fixed base, the fixed base is also provided with a feeding assembly, a support assembly and a clamping assembly; the feeding assembly includes a feeding plate that is laterally slidably connected to the top center position of the fixed base. The shortcomings of this utility model are that the four clamping plates for clamping magnetic rings fixed in a ring shape can only clamp magnetic parts exceeding a certain size, and cannot effectively cover small magnetic pieces. Moreover, due to the limited radius of the clamping plates, it is difficult to clamp magnetic rings with a larger radius. At the same time, this new type cannot adapt to mainstream magnetizers with the magnetizing table located at the top, affecting its practicality. The clamping device with spring rebound needs to be manually opened during operation, which is cumbersome and affects work efficiency. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art, such as complicated operation, low working efficiency and poor practicality, and provides a pneumatic clamping device for a magnetizer, which is convenient to operate and has high clamping efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pneumatic clamping device for a magnetizer comprises a magnetizing table, a gate-shaped support frame, a main control cylinder and a clamping assembly, wherein a magnetizing bin is provided on the top surface of the magnetizing table, the legs of the gate-shaped support frame are placed on both sides of the magnetizing bin, the gate-shaped support frame is fixedly connected to the magnetizing table, the main control cylinder is mounted on the top of the gate-shaped support frame, the clamping assembly is mounted in the gate-shaped support frame, a movable rod is provided on the main control cylinder, the movable rod passes through the gate-shaped support frame and is connected to the top of the clamping assembly, the clamping assembly comprises a limit frame, a pushing assembly and two clips, the pushing assembly is mounted on the limit frame, the clips are mounted in the limit frame, the clips are symmetrically distributed left and right in the limit frame and are connected to the pushing assembly, and the position of the clips corresponds to the position of the magnetizing bin up and down.

[0007] The door-shaped support frame is placed at the position of the magnetizing bin, and the door-shaped support frame is fixedly connected to the magnetizing table. The position of the door-shaped support frame and the clamping assembly is preliminarily positioned. The position of the clip in the clamping assembly corresponds to the position of the magnetizing bin up and down, thereby finally positioning the clamping position. The movable rod 1 of the main control cylinder passes through the through hole at the top of the door-shaped support frame and is fixedly connected to the clamping assembly. The clamping assembly is moved up and down by the up and down pushing and pulling action of the movable rod 1. The clamping assembly drives the two left and right symmetrical clips to close and separate to achieve grasping by pushing the assembly, thereby realizing the function of controlling the up and down movement and grasping of the clamping assembly, achieving the purpose of convenient operation and high clamping efficiency.

[0008] Preferably, the pushing assembly includes a transmission block, an auxiliary control cylinder, a sliding block and two guide blocks. The upper end face of the transmission block is fixedly connected to the movable rod. The auxiliary control cylinder is placed on the lower end face of the transmission block. The lower end face of the transmission block is threadedly connected to the auxiliary control cylinder. The limit frame is placed below the auxiliary control cylinder. The top of the limit frame is threadedly connected to the bottom of the auxiliary control cylinder. The sliding block and the guide block are both placed in the limit frame. The auxiliary control cylinder is connected to the sliding block. The guide blocks are installed on the left and right sides of the sliding block and are slidably connected to the sliding block. The clip is installed on the bottom end face of the guide block. A transmission block is provided between the auxiliary control cylinder and the movable rod, separating the two cylinders. It plays a role in transmitting force while protecting the cylinder from damage. The limit frame limits the position of the sliding block and the guide block, which is beneficial for the auxiliary control cylinder to transmit force to the clip, thereby achieving the purpose of convenient operation.

[0009] Preferably, trapezoidal guide grooves are provided on the left and right sides of the transmission block and on the left and right sides of the limit frame, and trapezoidal guide rails are provided on the left and right inner walls of the portal support frame. The transmission block and the limit frame are both slidably connected to the portal support frame through the cooperation of the trapezoidal guide rails and the trapezoidal guide grooves. The transmission block and the limit frame are both slidably connected to the portal support frame through the cooperation of the trapezoidal guide rails and the trapezoidal guide grooves. The trapezoidal guide rail design effectively fixes the range of motion of the clamping assembly, preventing the clamping assembly from falling off, thereby achieving the goals of strong practicality and convenient operation.

[0010] Preferably, a through hole is provided at the top of the limit frame, and a second movable rod is connected to the auxiliary control cylinder. The second movable rod passes through the through hole in the limit frame and is connected to the sliding block. The internal components of the auxiliary control cylinder drive the second movable rod to move, transmitting power downward through the through hole, which is practical and efficient.

[0011] Preferably, the top surface of the sliding block is provided with two bilaterally symmetrical connecting plates, each of which is provided with a first screw hole. The second movable rod is positioned between the two connecting plates. The second movable rod is provided with a first bolt, which is positioned in the first screw hole. The connecting plates are connected to the second movable rod through the engagement of the first bolt and the first screw hole. The connection of the sliding block to the second movable rod via the connecting plates enables automatic up and down movement of the sliding block, thereby achieving high operating efficiency.

[0012] Preferably, the sliding block is trapezoidal in shape, with inclined guide rails provided on the left and right oblique sides of the sliding block, the guide block is in the shape of a right-angled trapezoid, the guide blocks are symmetrically distributed on the left and right oblique sides of the sliding block, the oblique sides of the guide block are provided with inclined guide grooves, the cross-sectional shape of the inclined guide rails and the shape of the inclined guide grooves are both trapezoidal, the sliding block is slidably connected to the guide block through the cooperation of the inclined guide rails and the inclined guide grooves, the right-angled sides of the guide block are provided with rectangular guide grooves, the width of the rectangular guide grooves being greater than or equal to the width of the trapezoidal guide rails. Since the cross-sectional shape of the inclined guide rails and the shape of the inclined guide grooves are both trapezoidal, the guide block and the sliding block are restricted to relative sliding only along the inclined guide rails and the inclined guide grooves, and the upward and downward movement of the sliding block drives the guide block to move left and right through the cooperation of the inclined guide rails and the inclined guide grooves, causing the clamps to close and separate, thereby realizing the function of automatically clamping and releasing items.

[0013] Preferably, a sliding channel is provided within the limit frame, and the guide block is positioned within the sliding channel of the limit frame. Horizontal guide rails are provided on both the front and rear sides of the guide block, and a horizontal guide groove is provided within the sliding channel. The guide block is slidably connected to the limit frame within the sliding channel through the cooperation of the horizontal guide groove and the horizontal guide rail. The sliding channel within the limit frame limits the vertical displacement of the guide block, thereby enabling the vertical displacement of the slide block to be transmitted via the inclined guide rail as horizontal sliding of the guide block on the horizontal guide rail, thereby achieving horizontal closing and separation of the clips, thereby realizing the automatic clamping and releasing function, convenient operation, and strong practicality.

[0014] Preferably, the clip is L-shaped and includes a horizontal block and a vertical block integrally formed. The clip includes a horizontal block and a vertical block, and the horizontal block and the vertical block are integrally formed. The bottom end surface of the guide block is provided with two screw holes, and the horizontal block is provided with two bolts. The clip is fixedly connected to the bottom of the guide block through the cooperation of the two bolts and the two screw holes. When used for small magnets, the clip is fitted with the L-shaped vertical block and clamped by closing the vertical block. When used for large magnets, the clip can be disassembled, the end of the horizontal block is fitted, and the vertical block is closed to clamp or separate and stretch it, thereby adapting to more types of magnets, having a wide range of applications and easy assembly and maintenance.

[0015] Preferably, the vertical block surface of the clip is provided with anti-slip grooves. The anti-slip grooves can effectively increase the friction between the clip surface and the magnet surface when the clip is closed and clamped or separated and opened, thereby adapting to more types of magnets, having a wide range of applications and strong practicality.

[0016] The beneficial effects of the utility model are: convenient operation and high clamping efficiency, the transmission block prevents the cylinder from being damaged, the trapezoidal guide rail prevents the clamping component from falling off, the tooth pattern enhances friction and is conducive to clamping with the clip, different installation methods of the clip are suitable for different types of magnets, the cooperation of the auxiliary control cylinder, the sliding block and the guide block realizes automatic clamping, which is convenient to operate, highly practical, and easy to load and unload and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the joint of the sliding block, the guide block and the clip in a usage situation of the utility model;

[0020] Figure 4 This is a schematic structural diagram of the joint of the sliding block, the guide block and the clip in another use case of the present invention;

[0021] Figure 5 It is a structural diagram of the main control cylinder.

[0022] In the figure: 1. Magnetizing table, 2. Door-shaped support frame, 3. Main control cylinder, 4. Clamping assembly, 5. Magnetizing table, 6. Movable rod 1, 7. Clamping piece, 8. Trapezoidal guide groove, 9. Trapezoidal guide rail, 10. Transmission block, 11. Auxiliary control cylinder, 12. Limit frame, 13. Sliding block, 14. Guide block, 15. Movable rod 2, 16. Connecting piece, 17. Inclined guide rail, 18. Inclined guide groove, 19. Rectangular guide groove, 20. Horizontal guide rail, 21. Horizontal guide groove, 22. Screw hole 1, 23. Bolt 1, 24. Bolt 2, 25. Sliding channel, 26. Horizontal block, 27. Vertical block. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 、 Figure 2 and Figure 5 In the described embodiment, it includes a magnetizing table 1, a gate-shaped support frame 2, a main control cylinder 3 and a clamping assembly 4. A magnetizing bin 5 is provided on the top surface of the magnetizing table 1, and the legs of the gate-shaped support frame 2 are placed on both sides of the magnetizing bin 5. The gate-shaped support frame 2 is fixedly connected to the magnetizing table 1, the main control cylinder 3 is installed at the top of the gate-shaped support frame 2, and the clamping assembly 4 is installed in the gate-shaped support frame 2. A movable rod 6 is provided on the main control cylinder 3, and the movable rod 6 passes through the gate-shaped support frame 2 and is connected to the top of the clamping assembly 4. The clamping assembly 4 includes a limit frame 12, a pushing assembly and two clips 7. The pushing assembly is installed on the limit frame 12, and the clip 7 is installed in the limit frame 12. The clips 7 are symmetrically distributed on the left and right in the limit frame 12 and are connected to the pushing assembly. The position of the clip 7 corresponds to the position of the magnetizing bin 5 above and below.

[0025] like Figure 2 As shown, the pushing assembly includes a transmission block 10, an auxiliary control cylinder 11, a sliding block 13 and two guide blocks 14. The upper end surface of the transmission block 10 is fixedly connected to the movable rod 6, the auxiliary control cylinder 11 is placed on the lower end surface of the transmission block 10, and the lower end surface of the transmission block 10 is threadedly connected to the auxiliary control cylinder 11. The limit frame 12 is placed below the auxiliary control cylinder 11, and the top of the limit frame 12 is threadedly connected to the bottom of the auxiliary control cylinder 11. The sliding block 13 and the guide block 14 are both placed in the limit frame 12, the auxiliary control cylinder 11 is connected to the sliding block 13, and the guide blocks 14 are installed on the left and right sides of the sliding block 13 and are slidably connected to the sliding block 13. The clip 7 is installed on the bottom end surface of the guide block 14.

[0026] Trapezoidal guide grooves 8 are provided on the left and right side surfaces of the transmission block 10 and the left and right side surfaces of the limit frame 12, and trapezoidal guide rails 9 are provided on the left and right inner walls of the door-shaped support frame 2. The transmission block 10 and the limit frame 12 are slidably connected to the door-shaped support frame 2 through the cooperation of the trapezoidal guide rails 9 and the trapezoidal guide grooves 8.

[0027] like Figure 3 、 Figure 4 As shown, the top of the limit frame 12 is provided with a through hole, and the auxiliary control cylinder 11 is connected to the movable rod 15. The movable rod 15 passes through the through hole of the limit frame 12 and is connected to the sliding block 13. The top surface of the sliding block 13 is provided with two bilaterally symmetrical connecting pieces 16, each of which has a screw hole 22. The movable rod 15 is placed between the two connecting pieces 16. The movable rod 15 is provided with a bolt 23, which is placed in the screw hole 22. The connecting piece 16 is connected to the movable rod 15 through the cooperation of the bolt 23 and the screw hole 22.

[0028] The sliding block 13 is trapezoidal in shape, and inclined guide rails 17 are provided on the left and right oblique sides of the sliding block 13. The guide block 14 is in the shape of a right-angled trapezoid. The guide blocks 14 are symmetrically distributed on the left and right oblique sides of the sliding block 13. An inclined guide groove 18 is provided on the oblique side of the guide block 14. The cross-sectional shape of the inclined guide rail 17 and the shape of the inclined guide groove 18 are both trapezoidal. The sliding block 13 is slidably connected to the guide block 14 through the inclined guide rail 17 and the inclined guide groove 18. A rectangular guide groove 19 is provided on the right-angled side of the guide block 14, and the width of the rectangular guide groove 19 is greater than or equal to the width of the trapezoidal guide rail 9.

[0029] like Figure 2 、 Figure 3 As shown, a sliding channel 25 is provided in the limit frame 12, and the guide block 14 is placed in the sliding channel 25 of the limit frame 12. Horizontal guide rails 20 are provided on the front and rear sides of the guide block 14, and a horizontal guide groove 21 is provided in the sliding channel 25. The guide block 14 is slidably connected to the limit frame 12 in the sliding channel 25 through the cooperation of the horizontal guide groove 21 and the horizontal guide rail 20.

[0030] like Figure 3 As shown, the clip 7 is L-shaped and includes a horizontal block and a vertical block integrally formed. The clip 7 includes a horizontal block 26 and a vertical block 27. The horizontal block 26 and the vertical block 27 are integrally formed. The bottom end surface of the guide block 14 is provided with a second screw hole. The horizontal block 26 is provided with a second bolt 24. The clip 7 is fixedly connected to the bottom of the guide block 14 through the cooperation of the second bolt 24 and the second screw hole. The surface of the vertical block 27 of the clip 7 is provided with anti-slip grooves.

[0031] During installation, the two guide blocks 14 are mounted on the left and right sides of the sliding block 13 via the inclined guide rails 17. Simultaneously, the guide blocks 14 are installed along the horizontal guide grooves 21 into the sliding channels 26 of the limit frame 12. The movable rod 15 of the auxiliary control cylinder 11 is passed through the through hole and installed between the connecting plates 16. The movable rod 15 is fixedly connected to the connecting plates 16 via the bolts 23. The auxiliary control cylinder 11 is then threadedly connected to the limit frame 12 and the transmission block 10. Finally, the two clips 7 are symmetrically mounted to the bottom of the guide blocks 14 via the bolts 24. The clamping assembly 4 is then assembled. The clamping assembly 4 is then installed into the gate support frame 2 along the trapezoidal guide rails 9. The movable rod 16 of the main control cylinder 3 is passed through the gate support frame 2 and fixedly connected to the top of the transmission block 10. The main control cylinder 3 is then threadedly connected to the top of the gate support frame 2. Finally, the gate support frame 2 is secured to the magnetizing chamber 5. Installation is complete.

[0032] The specific process from insertion to magnetization completion and removal is as follows: first, the magnetization table is connected to the magnetizer power supply, then the main control cylinder 3 is used to retract the movable rod 16 and drive the clamping assembly 4 to rise along the trapezoidal guide rail 9 on the door-shaped support frame 2 through the transmission block 10, and then the magnet is manually placed between the two clamps 7, and the auxiliary control cylinder 11 is operated to retract the movable rod 2 15, drive the sliding block 13 to move upward, and at the same time, the inclined guide rail 17 is used to transmit force to move the two guide blocks 14 to move closer to each other along the horizontal guide groove 21, so that the two clamps 7 are closed and the magnet is clamped. Then the main control cylinder 3 is used to push out the movable rod 16 and drive the clamping assembly 4 to lower along the trapezoidal guide rail 9 on the door-shaped support frame 2 through the transmission block 10, and then the auxiliary control cylinder 11 is operated to push out the movable rod 2 15, drive the sliding block 13 to move downward, and at the same time, the inclined guide rail 17 is used to transmit force to separate the two guide blocks 14 to both sides along the horizontal guide groove 21, so as to separate the clamps 7 and insert the magnet. After power is turned on and magnetization is completed, the auxiliary control cylinder 11 is operated to retract the movable rod 2 15 to clamp the magnet, and the main control cylinder 3 is operated to retract the movable rod 1 6 to raise the clamping assembly 4. Finally, the operator holds the magnet and operates the auxiliary control cylinder 11 to push out the movable rod 2 15 to release the magnet, thus completing the magnetization and removal.

[0033] When the ring magnet needs to be adapted, the clip 7 can be placed in the magnet ring, and then the auxiliary control cylinder 11 is operated to push out the movable rod 2 15 to support the magnet ring. The auxiliary control cylinder 11 retracts the movable rod 2 15 to release the magnet ring.

[0034] When the size of the closed area of the clip 7 needs to be adjusted, the bolt 24 between the guide block 14 and the clip 7 can be removed, and then the clip 7 can be removed. When a large magnet needs to be clamped, the clip 7 can be installed symmetrically with the horizontal blocks 26 in contact with each other. When a small magnet needs to be clamped, the clip 7 can be installed symmetrically with the vertical blocks 27 in contact with each other.

Claims

1. A pneumatic clamping device for a magnetizer, characterized in that: The invention comprises a magnetizing platform (1), a gate-shaped support frame (2), a main control cylinder (3), and a clamping assembly (4); a magnetizing bin (5) is provided on the top surface of the magnetizing platform (1); the legs of the gate-shaped support frame (2) are placed on both sides of the magnetizing bin (5); the gate-shaped support frame (2) is fixedly connected to the top surface of the magnetizing platform (1); a main control cylinder (3) is provided on the top surface of the gate-shaped support frame (2); a through hole is provided on the top of the gate-shaped support frame (2); a clamping assembly (4) is provided on the inner side of the gate-shaped support frame (2); a movable rod (6) is provided on the main control cylinder (3); the movable rod (6) passes through the through hole and is fixedly connected to the top surface of the clamping assembly (4); at least two clips (7) are provided on the bottom of the clamping assembly (4); and the clips (7) are symmetrical on the left and right.

2. A pneumatic clamping device for a magnetizer according to claim 1, characterized in that: Trapezoidal guide grooves (8) are provided on the left and right surfaces of the clamping assembly (4), and trapezoidal guide rails (9) are provided on the left and right inner walls of the door-shaped support frame (2). The clamping assembly (4) is slidably connected to the door-shaped support frame (2) via the trapezoidal guide rails (9).

3. A pneumatic clamping device for a magnetizer according to claim 1, characterized in that: The clamping assembly comprises a transmission block (10), an auxiliary control cylinder (11), a limit frame (12), a sliding block (13), two guide blocks (14) and two clips (7), wherein the top surface of the transmission block (10) is fixedly connected to the movable rod (6), the auxiliary control cylinder (11) is placed below the transmission block (10), the bottom of the transmission block (10) is threadedly connected to the top of the auxiliary control cylinder (11), the limit frame (12) is placed below the auxiliary control cylinder (11), the top of the limit frame (12) is threadedly connected to the bottom of the auxiliary control cylinder (11), the sliding block (13) and the guide block (14) are both placed in the limit frame (12), and the clips (7) are respectively placed on the bottom surface of the guide block (14).

4. A pneumatic clamping device for a magnetizer according to claim 3, characterized in that: A through hole is provided on the top of the limit frame (12), and a second movable rod (15) is provided on the auxiliary control cylinder (11), and the second movable rod is placed in the through hole.

5. A pneumatic clamping device for a magnetizer according to claim 4, characterized in that: The top surface of the sliding block (13) is provided with two left-right symmetrical connecting plates (16), the connecting plates (16) are provided with a screw hole (22), the movable rod (15) is placed between the two connecting plates (16), the movable rod (15) is provided with a bolt (23), the bolt (23) is placed in the screw hole (22), the connecting plate (16) is connected to the movable rod (15) through the bolt (23), and the sliding block (13) is connected to the movable rod (15) through the connecting plate (16).

6. A pneumatic clamping device for a magnetizer according to claim 3, characterized in that: The sliding block (13) has a trapezoidal shape, and inclined guide rails (17) are provided on the left and right oblique sides of the sliding block (13). Guide blocks (14) are provided on the left and right inclined guide rails (17) of the sliding block (13).

7. A pneumatic clamping device for a magnetizer according to claim 6, characterized in that: The guide block (14) has a right-angled trapezoidal shape. The guide block (14) is bilaterally symmetrical. An inclined guide groove (18) is provided on the oblique side surface of one side of the guide block (14), and a rectangular guide groove (19) is provided on the right-angled side of the other side of the guide block (14).

8. A pneumatic clamping device for a magnetizer according to claim 3, characterized in that: Horizontal guide rails (20) are provided on both the front and rear sides of the guide block (14), and horizontal guide grooves (21) are provided on the corresponding two sides of the limit frame (12). The guide block (14) is slidably connected to the limit frame (12) through the horizontal guide grooves (21).

9. A pneumatic clamping device for a magnetizer according to claim 3, characterized in that: The clip (7) is L-shaped and includes a horizontal block and a vertical block formed integrally. The bottom surface of the guide block (14) is provided with at least two screw holes (24). The horizontal block is provided with at least two bolts (25). The clip (7) is fixedly connected to the bottom of the guide block (14) through the bolts (25).

10. A pneumatic clamping device for a magnetizer according to claim 9, characterized in that: The vertical block surface of the clip (7) is provided with tooth patterns.

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