Magnetic suction type rivet pressing device with punch magnet convenient to replace

Abstract

The utility model discloses a magnetic type pressure riveting device convenient to replace a punch magnet, which comprises a magnetic type pressure riveting punch, a female feeding mechanism, a guide sleeve, a guide rod, a mounting plate, a guide sleeve cylinder and a female die, the mounting plate is fixedly sleeved on a hydraulic telescopic rod of punching equipment, the bottom end of the hydraulic telescopic rod is fixedly connected with the magnetic type pressure riveting punch, and the guide sleeve cylinder is fixedly connected with the female die. The nut feeding mechanism is fixed on the guide sleeve, the guide sleeve is hung on the mounting plate through a plurality of guide rods, the guide rods are slidably connected with the mounting plate and fixedly connected with the guide sleeve, the guide sleeve is fixedly connected with a push-pull rod of a guide sleeve air cylinder, and a female die is arranged on the portion, under the guide sleeve, of the workbench. The magnetic type pressing rivet punch, the guide sleeve and the female die are coaxial. A damaged magnet can be directly taken out and replaced with a new magnet through the transition block, convenience and rapidness are achieved, maintenance time is saved, and production efficiency is improved; and meanwhile, the structure can be maintained without replacing the pressing rivet punch rod, only the magnet needs to be detached and replaced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of riveting equipment technology, and in particular to a magnetic riveting device that facilitates the replacement of the punch magnet. Background Technology

[0002] A press-fit nut is a type of nut used on thin plates or sheet metal. Pressure forces the nut's teeth into the plate to secure it. This technology can be traced back to the 1950s, first used by American engineer Henry Ford in automobile manufacturing. One step in this process involves attaching the nut to a magnetic press-fit punch, which then presses it into the thin plate or sheet metal under external pressure. Currently, the market uses methods such as disassembling a magnet into multiple small cylinders and embedding them directly into the magnetic press-fit punch, or using vacuum suction to attach the nut. However, the latter method is problematic because the punch is difficult to remove when the magnet malfunctions and needs replacement; the entire punch must be replaced, which is time-consuming, labor-intensive, and costly. Furthermore, this method weakens the magnetic force. Due to the brittle and fragile nature of magnets, the entire magnetic press-fit punch needs replacement after approximately 20,000 uses, resulting in low production efficiency, high maintenance costs, cumbersome and inconvenient replacement, and a low success rate in nut attachment.

[0003] Chinese patent CN209051070U discloses a magnetic punch for installing pins. It is connected to a clamping block by a connecting groove, and the connecting groove and the clamping block form a telescopic structure through a return spring. This allows the return spring to push the clamping block out of the connecting groove to limit and clamp the pin in the tube groove, preventing the pin from sliding out of the tube groove before installation and improving the stability of picking up the pin. However, it is not suitable for press-fit nuts.

[0004] In view of the above problems, developing a magnetic riveting device that facilitates the replacement of punch magnets in order to reduce production costs and improve production efficiency has become an urgent issue for those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a magnetic riveting device that facilitates the replacement of punch magnets, thereby reducing production costs and improving production efficiency.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A magnetic riveting device for easy replacement of the punch magnet includes a magnetic riveting punch, a nut feeding mechanism, a guide sleeve, a guide rod, a mounting plate, a guide sleeve cylinder, and a die. The mounting plate is fixedly sleeved on the hydraulic telescopic rod of the stamping equipment. The bottom end of the hydraulic telescopic rod is fixedly connected to the magnetic riveting punch. The nut feeding mechanism is fixed on the guide sleeve. The guide sleeve is suspended on the mounting plate by several guide rods. The guide rod is slidably connected to the mounting plate and fixedly connected to the guide sleeve. The guide sleeve is fixedly connected to the push-pull rod of the guide sleeve cylinder. A die is provided on the worktable directly below the guide sleeve. The magnetic riveting punch, the guide sleeve, and the die are coaxial. The nut feeding mechanism delivers the nut into position. The magnetic riveting punch attracts the nut. The hydraulic telescopic rod and the push-pull rod move downwards simultaneously. After the guide sleeve presses the product part on the die, the push-pull rod stops moving. The magnetic riveting punch, with the attracted nut, continues to move downwards along the guide sleeve until the nut is riveted onto the product part. The magnetic riveting punch then moves upwards, completing the riveting of the nut.

[0008] The above-mentioned magnetic riveting device for easy replacement of the punch magnet includes a transition block, a magnet, a countersunk screw, and a riveting punch rod. The riveting end of the riveting punch rod is provided with a blind mounting hole. The transition block and the magnet are fixed in the blind mounting hole by a screw. The screw is slidably connected to the magnet and threadedly connected to the transition block and the riveting punch rod.

[0009] In the aforementioned magnetic clamping riveting device that facilitates the replacement of the punch magnet, the total thickness of the transition block and the magnet is less than the depth of the mounting blind hole.

[0010] The aforementioned magnetic clamping device for easy replacement of the punch magnet has a transition block and a magnet that are both cylindrical in shape, and the diameters of the transition block and the magnet are both smaller than the diameter of the mounting blind hole.

[0011] The aforementioned magnetic clamping riveting device, which facilitates the replacement of the punch magnet, further includes a nut positioning pin on the die, the nut positioning pin being coaxial with the die. Beneficial effects

[0012] The magnetic clamping device provided by this utility model facilitates the replacement of the punch magnet. It uses a transition block to directly remove the damaged magnet and replace it with a new one, which is convenient and quick, saves maintenance time, and improves production efficiency. At the same time, this structure does not require the replacement of the clamping punch rod, but only the magnet, which reduces production costs. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the figures.

[0014] Figure 1 This is a structural diagram of the present invention when replacing product parts;

[0015] Figure 2This is a structural schematic diagram of the riveting process of this utility model;

[0016] Figure 3 This is an exploded structural diagram of the magnetic riveting punch of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the magnetic riveting punch of this utility model.

[0018] The labels in the diagram represent: 1. Magnetic riveting punch, 2. Transition block, 3. Magnet, 4. Countersunk screw, 5. Nut feeding mechanism, 6. Guide sleeve, 7. Product part, 8. Die, 9. Nut, 10. Nut locating pin, 11. Riveting punch rod, 12. Mounting plate, 13. Hydraulic telescopic rod, 14. Guide rod, 15. Locking nut, 16. Guide sleeve cylinder, 17. Push-pull rod, 18. Mounting blind hole. Detailed Implementation

[0019] See Figure 1 , Figure 2 This utility model includes a magnetic riveting punch 1, a feeding mechanism 5, a guide sleeve 6, a guide rod 14, a mounting plate 12, a guide sleeve cylinder 16, and a die 8. The mounting plate 12 is fixedly sleeved on the hydraulic telescopic rod 13 of the stamping equipment. The bottom end of the hydraulic telescopic rod 13 is fixedly connected to the magnetic riveting punch 1. The feeding mechanism 5 is fixed on the guide sleeve 6. The guide sleeve 6 is suspended on the mounting plate 12 by several guide rods 14. The guide rods 14 are slidably connected to the mounting plate 12 and fixedly connected to the guide sleeve 6. The guide sleeve 6 is fixedly connected to the guide sleeve cylinder 16. The push-pull rod 17 of the guide sleeve 6 is provided with a die 8 on the worktable directly below the guide sleeve 6. The magnetic riveting punch 1, the guide sleeve 6 and the die 8 are coaxial. The nut feeding mechanism 5 delivers the nut 9 to the position. The magnetic riveting punch 1 attracts the nut 9. The hydraulic telescopic rod 13 and the push-pull rod 17 move downward at the same time. After the guide sleeve 6 presses the product part 7 on the die 8, the push-pull rod 17 stops moving. The magnetic riveting punch 1 continues to move downward along the guide sleeve 6 with the attracted nut 9 until the nut 9 is riveted onto the product part 7. The magnetic riveting punch 1 moves upward to complete the riveting of the nut 9.

[0020] See Figure 3 , Figure 4 The magnetic riveting punch 1 includes a transition block 2, a magnet 3, a countersunk screw 4, and a riveting punch rod 11. The riveting end of the riveting punch rod 11 is provided with a blind mounting hole 18. The transition block 2 and the magnet 3 are fixed in the blind mounting hole 18 by the screw 4. The screw 4 is slidably connected to the magnet 3 and threadedly connected to the transition block 2 and the riveting punch rod 11. The transition block is used to carry out the damaged magnet and replace it with a new magnet.

[0021] See Figure 4The total thickness of the transition block 2 and the magnet 3 is less than the depth of the blind hole 18, to prevent the magnet from being crushed during the riveting process.

[0022] See Figure 3 Both the transition block 2 and the magnet 3 are cylindrical in shape, and their diameters are smaller than the diameter of the blind hole 18, which facilitates magnet replacement.

[0023] See Figure 1 , Figure 2 The die 8 is also provided with a nut positioning pin 10, which is coaxial with the die 8.

Claims

1. A magnetic riveting device for easy replacement of the punch magnet, characterized in that, The application relates to a magnetic type press riveting punch (1), a nut feeding mechanism (5), a guide sleeve (6), a guide rod (14), a mounting plate (12), a guide sleeve cylinder (16) and a concave die (8); the mounting plate (12) is fixedly sleeved on a hydraulic telescopic rod (13) of a stamping device, the bottom end of the hydraulic telescopic rod (13) is fixedly connected with the magnetic type press riveting punch (1), the nut feeding mechanism (5) is fixed on the guide sleeve (6), the guide sleeve (6) is hoisted on the mounting plate (12) through a plurality of guide rods (14), the guide rods (14) are slidingly connected with the mounting plate (12) and fixedly connected with the guide sleeve (6), the guide sleeve (6) is fixedly connected with the push-pull rod (17) of the guide sleeve cylinder (16), the concave die (8) is arranged on a workbench directly below the guide sleeve (6), the magnetic type press riveting punch (1), the guide sleeve (6) and the concave die (8) are coaxial; the nut feeding mechanism (5) feeds a nut (9) to a position, the magnetic type press riveting punch (1) adsorbs the nut (9), the hydraulic telescopic rod (13) and the push-pull rod (17) simultaneously act downward, the push-pull rod (17) stops acting after the guide sleeve (6) presses the product part (7) on the concave die (8), the magnetic type press riveting punch (1) continues to move downward along the guide sleeve (6) with the adsorbed nut (9), until the nut (9) is press riveted on the product part (7), the magnetic type press riveting punch (1) moves upward, and the press riveting of the nut (9) is completed.

2. The magnetic type press riveter of claim 1, wherein, The magnetic type press riveting punch (1) comprises a transition block (2), a magnet (3), a countersunk screw (4) and a press riveting punch rod (11); a press riveting end of the press riveting punch rod (11) is provided with a mounting blind hole (18), the transition block (2) and the magnet (3) are fixed in the mounting blind hole (18) through the screw (4), the screw (4) is slidingly connected with the magnet (3), and the transition block (2) and the press riveting punch rod (11) are threadedly connected.

3. The magnetic type press riveter of claim 2, wherein the magnetic type press riveter is characterized by: The total thickness of the transition block (2) and the magnet (3) is smaller than the depth of the mounting blind hole (18).

4. The magnetic type press riveter of claim 2, wherein the magnetic type press riveter is characterized by: The transition block (2) and the magnet (3) are both cylindrical in shape, and the diameters of the transition block (2) and the magnet (3) are both smaller than the diameter of the mounting blind hole (18).

5. The magnetic type press riveter of claim 1, wherein the magnetic type press riveter is characterized by: The concave die (8) is further provided with a nut positioning pin (10), and the nut positioning pin (10) is coaxial with the concave die (8).

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