Slotting device for cross-slotted pan head screw machining

By introducing a buffer component and a quick-disassembly structure into the grooving device for processing cross-slot pan head screws, the problems of easy damage and inconvenient disassembly of stamping cutter heads are solved, enabling quick replacement of cutter heads and vibration absorption, thereby improving the service life and working efficiency of the equipment.

CN224346784UActive Publication Date: 2026-06-12JIANGSU MAYU AUTOMOTIVE FASTENER MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU MAYU AUTOMOTIVE FASTENER MFG CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The punching cutter head of the existing grooving device for processing cross-slot pan head screws is easily damaged and inconvenient to disassemble, resulting in a shortened service life and low work efficiency.

Method used

It adopts a buffer assembly and quick-disassembly structure, including a plug design with buffer spring and compression spring. The plug is fixed by rotating the plug with the plug hole and positioning groove, which enables quick disassembly and installation of the stamping cutter head, and absorbs vibration force through the elastic rod of rubber material.

Benefits of technology

It improves the service life and processing efficiency of stamping cutters, reduces disassembly time, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to cross -groove head screw processing is with slotting technical field, especially cross -groove head screw processing is with slotting device, including the console, the top of console is provided with work table, the top of work table is provided with drive machine, the below of drive machine is provided with mounting seat, the below of mounting seat is provided with punch head, one end of punch head is fixedly connected with the thread head, punch head's left and right sides all are fixedly connected with the positioning piece, the inside of two positioning pieces all are provided with the insertion hole, the inside of mounting seat is provided with the insertion groove, the inside of insertion groove is provided with buffer assembly, one end of buffer assembly is fixedly connected with the connecting disc, the inside of connecting disc is provided with the thread fixed slot, the left and right sides of mounting seat inside all are provided with the locating slot, the utility model discloses punch head structure of convenient replacement, improve the work efficiency of subsequent, save time and labour, utilize the structure of buffer simultaneously, improve its life.
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Description

Technical Field

[0001] This utility model relates to the field of grooving technology for processing cross-slot pan head screws, and more particularly to a grooving device for processing cross-slot pan head screws. Background Technology

[0002] The grooving device for processing cross-slot pan head screws is a core piece of equipment in fastener manufacturing. Its design must take into account positioning accuracy, processing efficiency and standardization of groove shape. It cuts or stamps the screw head by rotating a cutting tool (such as a cross-blade end mill or punch). One step in the screw production process is to slot the screw head to facilitate the use of a screwdriver when tightening or loosening the screw.

[0003] According to existing patent number CN220612559U, a screw grooving mechanism is disclosed, including a machine base. A feeding tray for feeding screws is located on the left side of the machine base, and a processing table is located on the left side of the upper end face of the machine base. A screw grooving mechanism for simultaneously grooving both sides of the screw is linearly slidable on a drive mechanism. A motor drives a turntable to rotate, and the rotation of the turntable drives the grooving motor and grooving cutting wheel to adjust the grooving angle at different times. After the grooving cutting wheel angle is adjusted, a driving force is generated through the cooperation of the drive motor and the drive slider, causing the grooving cutting wheel to move laterally to the screw grooving location to perform the grooving operation. This allows the grooving cutting wheel to perform relative angle grooving on both sides of the screw. The grooving cutting wheel can be rotated at different angles according to the different screw grooving angles, further improving the practicality of the grooving mechanism and increasing the range of screw grooving.

[0004] However, existing grooving devices for processing cross-slot pan head screws use a stamping cutter to cut the cross slots. Prolonged stamping and cutting can easily damage the stamping head. During replacement, the installation structure is difficult to disassemble quickly, requiring tools and increasing the workload for employees. In addition, the stamping process causes vibration, which can also easily damage the stamping head, shorten its service life, and increase the cost of use. Utility Model Content

[0005] To overcome the problems of the stamping cutter head used in the existing grooving device for processing cross-slot pan head screws being damaged after long-term use, and the increased time to damage due to vibration during use, and the inconvenience of disassembly and installation during subsequent replacement, which increases the workload of workers.

[0006] The technical solution of this utility model is as follows: a grooving device for processing cross-slot pan head screws, including a control panel, a worktable above the control panel, a drive motor above the worktable, a mounting base below the drive motor, a stamping cutter below the mounting base, a threaded head fixedly connected to one end of the stamping cutter, positioning components fixedly connected to both sides of the stamping cutter, each positioning component having an insertion hole inside, a slot inside the mounting base, a buffer assembly inside the slot, a connecting plate fixedly connected to one end of the buffer assembly, a threaded fixing groove inside the connecting plate, positioning grooves inside the mounting base on both sides, a rotating groove located on the inner wall of the mounting base at one end of each positioning groove, movable grooves located on the inner wall of the mounting base on both sides of each rotating groove, and insertion components inside each movable groove.

[0007] Preferably, the positioning component includes positioning blocks, each with an insertion hole inside, and both positioning blocks are snapped into two positioning slots for positioning and installing the stamping cutter head.

[0008] Preferably, the plug assembly includes a plug rod with a compression spring sleeved on its outside, and two positioning blocks that engage with two positioning slots and rotate inside the slots.

[0009] Preferably, during rotation, the two positioning blocks contact the insertion rods, causing the insertion rods to be compressed synchronously with the compression springs, and both insertion rods are inserted into the two insertion holes for fixing the mounting head and the mounting base.

[0010] Preferably, the mounting head is inserted into the slot, and the threaded head is also inserted into the slot and into the threaded fixing groove. When rotated, the external thread of the threaded head engages with the internal thread in the threaded fixing groove to strengthen the fixation between the mounting head and the mounting base.

[0011] Preferably, the buffer assembly includes an elastic rod, which is fixedly connected to the lower end face of the connecting plate, and an elastic element is sleeved on the outside of the elastic rod.

[0012] Preferably, the elastic element includes a buffer spring, which is sleeved on the outside of the elastic rod. The elastic rod is made of rubber and can deform to absorb vibration force.

[0013] The beneficial effects of this utility model are:

[0014] 1. This grooving device for processing cross-slot pan head screws features a quick-disassembly and replacement structure with a stamping cutter head, which facilitates replacement by workers, saves time and effort, and improves the efficiency of subsequent screw processing.

[0015] 2. The grooving device for processing cross-slot pan head screws improves the protection of the stamping cutter head and extends its service life by using a buffering structure during the stamping process. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the grooving device for processing cross-slot pan head screws according to this utility model.

[0017] Figure 2 The diagram shown is a cross-sectional view of the stamping cutter head connection structure of this utility model.

[0018] Figure 3 This utility model is shown. Figure 2 A magnified schematic diagram of the three-dimensional structure at point A;

[0019] Figure 4 The image shown is a bottom cross-sectional view of the pressure head connection structure of this utility model.

[0020] Figure 5 This utility model is shown. Figure 4 A magnified schematic diagram of the three-dimensional structure at point B.

[0021] Explanation of reference numerals in the attached drawings: 1. Control panel; 2. Drive motor; 3. Mounting base; 4. Stamping cutter head; 5. Worktable; 6. Mounting head; 7. Positioning block; 8. Threaded head; 9. Positioning groove; 10. Rotary groove; 11. Connecting plate; 12. Threaded fixing groove; 13. Elastic rod; 14. Buffer spring; 15. Insert rod; 16. Compression spring; 17. Movable groove; 18. Insertion hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a grooving device for machining cross-slot pan head screws, including a control panel 1, a worktable 5 above the control panel 1, a drive motor 2 above the worktable 5, a mounting base 3 below the drive motor 2, a punching head 4 below the mounting base 3, a threaded head 8 fixedly connected to one end of the punching head 4, positioning members fixedly connected to both sides of the punching head 4, and each positioning member having an insertion hole 18 inside. The mounting base 3 has a slot inside, and a buffer assembly is installed inside the slot. One end of the buffer assembly is fixedly connected to a connecting... The connecting plate 11 has a threaded fixing groove 12 inside. The mounting base 3 has positioning grooves 9 on both the left and right sides. One end of the two positioning grooves 9 has a rotating groove 10 located on the inner wall of the mounting base 3. The rotating groove 10 has movable grooves 17 located on the inner wall of the mounting base 3 on both the left and right sides. The two movable grooves 17 are equipped with plug-in components. The structure of the control panel 1, the drive motor 2 and the stamping cutter head 4 is an existing technical solution. The applicant will not provide a detailed description of the internal structure and components of the control panel 1, the drive motor 2 and the stamping cutter head 4 or their connection relationship.

[0024] The positioning components include positioning blocks 7, each with an insertion hole 18 inside. Both positioning blocks 7 are engaged with two positioning slots 9 for positioning and mounting the stamping cutter head 4. The insertion assembly includes insertion rods 15, with compression springs 16 sleeved on the outside of the insertion rods 15. The two positioning blocks 7 are engaged in the two positioning slots 9 and rotate within the rotating groove 10. During rotation, the two positioning blocks 7 contact the insertion rods 15, causing the insertion rods 15 and compression springs 16 to press synchronously. Both insertion rods 15 are inserted into the two insertion holes 18 for fixing the mounting head 6 and mounting base 3. The mounting head 6 is inserted into the slot, and the threaded head 8 is also inserted into the slot and into the threaded fixing groove 12. When rotating, the external thread of the threaded head 8 engages with the internal thread in the threaded fixing groove 12 to strengthen the fixation between the mounting head 6 and the mounting base 3. For stamping... When disassembling the cutter head 4, rotate the mounting head 6 so that the insert rod 15 inserted into the socket 18 is compressed synchronously with the compression spring 16 under the rotational force, causing the insert rod 15 to disengage from the socket 18. After disengagement, rotate the mounting head 6 to disengage the threaded head 8 from the threaded fixing groove 12. At the same time, both positioning blocks 7 reach the positions of the two positioning grooves 9, and the mounting head 6 can be pulled out to complete the disassembly. During installation, align the positioning blocks 7 on both sides of the mounting head 6 with the two positioning grooves 9 and snap them in. While snapping in, slowly move the two positioning blocks 7 to the rotating groove 10 and start rotating so that the two positioning blocks 7 rotate and contact the insert rod 15, squeezing the insert rod 15 synchronously with the compression spring 16. Finally, insert it into the socket 18 for fixation. At the same time, the threaded head 8 also engages and is inserted into the threaded fixing groove 12 for reinforcement, thus completing the installation.

[0025] The buffer assembly includes an elastic rod 13, which is fixedly connected to the lower end face of the connecting plate 11. An elastic element, including a buffer spring 14, is sleeved on the outside of the elastic rod 13. The elastic rod 13 is made of rubber and can deform to absorb vibration. Vibration is generated during stamping and cutting. The elastic rod 13, made of rubber and deformable, works in conjunction with the buffer spring 14 to absorb the vibration and improve the buffering efficiency.

[0026] During operation, when disassembling the stamping cutter head 4, rotating the mounting head 6 causes the insert rod 15, inserted into the socket 18, to be compressed synchronously with the compression spring 16 under the rotational force, causing the insert rod 15 to disengage from the socket 18. After disengagement, rotating the mounting head 6 simultaneously causes the threaded head 8 to disengage from the threaded fixing groove 12. At the same time, both positioning blocks 7 reach the positions of the two positioning grooves 9, allowing the mounting head 6 to be pulled out, completing the disassembly. During installation, the positioning blocks 7 on both sides of the mounting head 6 are aligned with the two positioning grooves 9 and inserted into them simultaneously. The two positioning blocks 7 are slowly displaced until they reach the rotating groove 10 and begin to rotate. This causes the two positioning blocks 7 to rotate and contact the insertion rod 15, which is then pressed synchronously with the compression spring 16. Finally, the rod is inserted into the insertion hole 18 for fixation. At the same time, the threaded head 8 is also engaged and inserted into the threaded fixing groove 12 for reinforcement, thus completing the installation. Since vibrations are generated during stamping and cutting, the elastic rod 13 on the lower end face of the connecting plate 11 is made of rubber and can deform. This, in conjunction with the buffer spring 14, absorbs the vibrations and improves the buffering efficiency.

[0027] Through the above steps, the quick disassembly and replacement structure of the stamping cutter head 4 facilitates the replacement by the staff, saving time and effort while improving the efficiency of subsequent screw processing. This solves the problem that the stamping cutter head 4 used in the existing grooving device for processing cross-slot pan head screws will be damaged after long-term use, and the vibration during use will increase the time before it is damaged. In the subsequent replacement process, it is inconvenient to disassemble and install it, which increases the workload of the workers.

Claims

1. A grooving device for machining cross-slot pan head screws, comprising a control panel (1), characterized in that: A workbench (5) is provided above the control panel (1), a drive motor (2) is provided above the workbench (5), a mounting base (3) is provided below the drive motor (2), a stamping head (4) is provided below the mounting base (3), a threaded head (8) is fixedly connected to one end of the stamping head (4), positioning parts are fixedly connected to both sides of the stamping head (4), and insertion holes (18) are provided inside the two positioning parts. A slot is provided inside the mounting base (3), a buffer assembly is provided inside the slot, a connecting plate (11) is fixedly connected to one end of the buffer assembly, a threaded fixing groove (12) is provided inside the connecting plate (11), positioning grooves (9) are provided on both sides of the mounting base (3), a rotating groove (10) located on the inner wall of the mounting base (3) is provided at one end of the two positioning grooves (9), and movable grooves (17) located on the inner wall of the mounting base (3) are provided on both sides of the rotating groove (10), and insertion components are provided inside the two movable grooves (17).

2. The grooving device for machining cross-slot pan head screws according to claim 1, characterized in that: The positioning component includes positioning blocks (7), and each of the two positioning blocks (7) has an insertion hole (18) inside. The two positioning blocks (7) are snapped into the two positioning slots (9) for positioning and installation of the stamping cutter head (4).

3. The grooving device for machining cross-slot pan head screws according to claim 2, characterized in that: The plug assembly includes a plug rod (15), a compression spring (16) is sleeved on the outside of the plug rod (15), and two positioning blocks (7) are engaged in two positioning slots (9) and rotate inside the rotating slot (10).

4. The grooving device for machining cross-slot pan head screws according to claim 3, characterized in that: While rotating, the two positioning blocks (7) contact the insertion rod (15), causing the insertion rod (15) to be squeezed synchronously with the compression spring (16), and both insertion rods (15) are inserted into the two insertion holes (18) for fixing the mounting head (6) and the mounting base (3).

5. The grooving device for machining cross-slot pan head screws according to claim 4, characterized in that: The mounting head (6) is inserted into the slot, and the threaded head (8) is also inserted into the slot. The threaded head (8) is inserted into the threaded fixing groove (12). When rotated, the external thread of the threaded head (8) engages with the internal thread in the threaded fixing groove (12) to strengthen the fixation between the mounting head (6) and the mounting base (3).

6. The grooving device for machining cross-slot pan head screws according to claim 1, characterized in that: The buffer assembly includes an elastic rod (13), which is located on the lower end face of the connecting plate (11) and fixedly connected thereto. An elastic element is sleeved on the outside of the elastic rod (13).

7. The grooving device for machining cross-slot pan head screws according to claim 6, characterized in that: The elastic element includes a buffer spring (14), which is sleeved on the outside of the elastic rod (13). The elastic rod (13) is made of rubber and can deform to absorb vibration force.