Screw bushing die and stamping system

Abstract

The invention relates to the technical field of stamping, and discloses a screw bushing die and a stamping system.The screw bushing die comprises a lower die block and at least two upper die blocks arranged side by side with the lower die block, and the upper die blocks are matched with the lower die block through guide structures; the pressing rod is fixed between the two upper modules, the lower surface of the pressing rod is connected with a connecting rod through an elastic piece, and the lower end of the connecting rod is provided with a core rod for punching; through the arrangement of the upper die block, the connecting rod, the pressing rod, the core rod and the adjustable type block assembly, the situation that two working procedures are needed in traditional bending and only one lining body can be machined through one-time bending is avoided, the device can machine two lining bodies at the same time through one-time working procedures, the machining efficiency is greatly improved, and the machining cost is reduced. And the bushing bodies of different sizes can be well machined through the adjustable type block assembly, and the application range of the device is widened.

Description

Technical Field

[0001] The invention relates to the technical field of stamping, and in particular to a screw bushing die and a stamping system. Background Art

[0002] A screw bushing, also called a screw sleeve or a screw gasket, is an annular tube. It is a part used to fix and protect threaded holes. It can increase the strength and wear resistance of threaded holes and reduce the wear of threaded holes. During processing, the sheet is usually deformed by stamping to form a ring.

[0003] When processing the existing annular screw bushing, the plate is usually bent into a "U" shape through a first process, and then finally processed into a ring shape through another process. However, the operation process is relatively cumbersome, and the turnover screw bushing processing between processes also wastes time. In addition, some can be bent and formed through one process, such as the patent number: 2022213103218, named: Bushing bending mold, but only one screw bushing can be processed in the same process, and the processing efficiency is limited. For this reason, we propose a screw bushing mold and stamping system. Summary of the invention

[0004] The purpose of the present invention is to provide a screw bushing mold and stamping system to solve the problem mentioned in the above background technology that the existing screw bushings need to go through two processes when stamping and forming, which is troublesome and time-consuming, while some are processed and formed through one process, and only one screw bushing can be processed at one time, which is inefficient.

[0005] To achieve the above object, the present invention provides the following technical solution: a screw bushing mold, comprising:

[0006] A lower module and an upper module arranged side by side with the lower module, wherein the upper modules have at least two, and the upper modules and the lower modules are matched with each other through a guide structure;

[0007] A pressure rod is fixed between the two upper modules, the lower surface of the pressure rod is connected to a connecting rod through an elastic member, and the lower end of the connecting rod has a core rod for stamping;

[0008] At least two mold cavities are opened at two ends of the upper surface of the lower mold block, and the inner sides of the two mold cavities are provided with adjustable block components that cooperate with the core rod to form the screw bushing;

[0009] The ejector assembly is arranged on the inner side of the lower module to eject the formed screw bushing.

[0010] Preferably, a groove is provided on the connecting rod, and a connecting spring cooperating with the pressure rod is provided inside the groove.

[0011] Preferably, the adjustable block assembly includes a fixed block, a movable block, an adjusting screw and an adjusting slider, the fixed block is fixed to one end of the inner side of the mold cavity, a slide groove is provided at the other end of the inner side of the mold cavity, an adjusting screw is rotatably installed inside the slide groove, an adjusting slider is sleeved on the outer surface of the adjusting screw, and the inner side of the adjusting slider has a threaded groove matching the adjusting screw, and the top of the adjusting slider has a movable block.

[0012] Preferably, the fixed block and the movable block are both arc-shaped.

[0013] Preferably, rubber pads are provided at both ends of the upper surface of the movable block.

[0014] Preferably, the ejector assembly includes an ejector spring, an ejector pin and a connecting slider. A mounting groove is opened on the inner side of the lower module. The connecting slider is slidably arranged on the inner side of the mounting groove. The lower surface of the connecting slider has an ejector spring. The ejector pin is fixed on the upper surface of the connecting slider to eject the formed screw bushing.

[0015] Preferably, the ejector pins are symmetrically arranged at two locations along the long side of the lower module.

[0016] Preferably, a guide hole is provided at one end of the inner side of the upper module, and a guide rod matching the guide hole is provided at the edge of the upper surface of the lower module.

[0017] Preferably, the guide rods are provided at four locations.

[0018] A punching system comprises: a punching machine and the screw bushing die, wherein the screw bushing die is detachably connected to the punching head of the punching machine.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] By providing an upper module, a connecting rod, a pressure rod, a core rod and an adjustable block assembly, the traditional bending process that requires two steps is avoided. Some bending processes can only process one bushing body at a time. The present device can process two bushing bodies at the same time in one process, which greatly improves the processing efficiency. In addition, the adjustable block assembly can be used to process bushing bodies of different sizes, which improves the application range of the device and increases its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic cross-sectional structural diagram of the lower module of the present invention;

[0023] Figure 3 It is a schematic diagram of the movable block structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the adjusting slider of the present invention;

[0025] Figure 5 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0026] Figure 6 It is a schematic diagram of the core rod structure of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the bushing body after processing according to the present invention.

[0028] In the figure: 1. lower module; 2. upper module; 3. connecting rod; 4. pressure rod; 5. mold cavity; 6. bushing body; 7. core rod; 8. guide rod; 9. connecting spring; 10. fixed block; 11. movable block; 12. adjusting screw; 13. guide hole; 14. rubber pad; 15. adjusting slider; 16. threaded groove; 17. lifting spring; 18. ejector pin; 19. connecting slider. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 The present invention provides a technical solution: a screw bushing mold, comprising:

[0031] A lower module 1 and an upper module 2 arranged side by side with the lower module 1, and the upper modules 2 have at least two, and the upper modules 2 and the lower module 1 are matched through a guide structure to facilitate simultaneous processing of two bushing bodies 6;

[0032] A pressure rod 4 is fixed between the two upper modules 2. The lower surface of the pressure rod 4 is connected to a connecting rod 3 through an elastic member. The lower end of the connecting rod 3 has a stamping mandrel 7, which is convenient for supporting the inner side of the bushing body 6 during bending and forming.

[0033] At least two mold cavities 5 are provided at both ends of the upper surface of the lower mold block 1, and the inner sides of the two mold cavities 5 are provided with adjustable block components that cooperate with the core rod 7 to form the screw bushing, so as to facilitate the bushing body 6 to bend from a plate shape to form a ring shape;

[0034] The ejector assembly is arranged on the inner side of the lower module 1 to eject the formed screw bushing, so as to facilitate the bushing body 6 to be better withdrawn from the inner side of the adjustable block assembly, so that the upper and lower ends of the bushing body 6 are evenly stressed when withdrawing, thereby reducing the deformation of the bushing body 6 when withdrawing.

[0035] Preferably, a groove is formed on the connecting rod 3, and a connecting spring 9 is provided inside the groove to cooperate with the pressure rod 4, so as to keep the position of the core rod 7 unchanged, thereby continuing to drive the upper module 2 to move downward.

[0036] Preferably, the adjustable block assembly includes a fixed block 10, a movable block 11, an adjusting screw 12 and an adjusting slider 15. The fixed block 10 is fixed to one end of the inner side of the mold cavity 5. A slide groove is provided at the other end of the inner side of the mold cavity 5. The adjusting screw 12 is rotatably installed inside the slide groove. The outer surface of the adjusting screw 12 is sleeved with an adjusting slider 15, and the inner side of the adjusting slider 15 has a thread groove 16 that matches the adjusting screw 12. The top of the adjusting slider 15 has a movable block 11, which is convenient for adjusting the position of the movable block 11, thereby adjusting the distance between the movable block 11 and the fixed block 10 to match the bushing body 6 of different lengths.

[0037] Preferably, both the fixed block 10 and the movable block 11 are arc-shaped.

[0038] Preferably, rubber pads 14 are provided at both ends of the upper surface of the movable block 11 to increase the friction force when the plate-shaped bushing body 6 is placed on the upper surface of the movable block 11 .

[0039] Preferably, the ejector assembly includes a lifting spring 17, an ejector pin 18 and a connecting slider 19. A mounting groove is opened on the inner side of the lower module 1. The connecting slider 19 is slidably arranged on the inner side of the mounting groove. The lower surface of the connecting slider 19 has a lifting spring 17. The ejector pin 18 is fixed to the upper surface of the connecting slider 19 to push the formed screw bushing, so that when the core rod 7 drives the bushing body 6 to detach from the inner side of the mold cavity 5, a lifting force is applied to the lower surface of the bushing body 6 to improve the uniform force effect of the bushing body 6.

[0040] Preferably, the ejector pins 18 are symmetrically arranged at two locations along the long side of the lower module 1 , so as to better eject the bushing body 6 .

[0041] Preferably, a guide hole 13 is opened at one end of the inner side of the upper module 2, and a guide rod 8 matching with the guide hole 13 is arranged on the edge of the upper surface of the lower module 1 to facilitate the vertical lifting of the upper module 2.

[0042] Preferably, the guide rods 8 are provided at four locations.

[0043] A punching system comprises a punching machine and a screw bushing die, wherein the screw bushing die is detachably connected to a punching head of the punching machine.

[0044] The working principle and use process of the present invention are as follows: when in use, the plate-shaped bushing body 6 is placed on the fixed block 10 and the movable block 11, the upper end of the pressure rod 4 is connected to the punch head, and the punching machine drives the connecting rod 3 to move down through the pressure rod 4, and the connecting rod 3 drives the core rod 7 to move down, and the core rod 7 squeezes the bushing body 6, and the bushing body 6 is bent into a "U" shape through the cooperation of the fixed block 10 and the movable block 11, and then the pressure rod 4 continues to descend, and the pressure rod 4 and the connecting rod 3 squeeze the connecting spring 9 to shorten it, and the position of the core rod 7 remains unchanged. At this time, the pressure rod 4 continues to drive the upper module 2 to descend, and the adjustable block assembly on the lower surface of the upper module 2 continues to squeeze the bushing body 6, so that the "U"-shaped bushing body 6 is bent into a ring shape, which can be processed and formed, and then the punch head drives the pressure rod 4 and the core rod 7 to rise, and the annular bushing body 6 is pulled out from both ends of the core rod 7, and the processed bushing body 6 can be removed.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw bushing mold, characterized in that: include: A lower module (1) and an upper module (2) arranged side by side with the lower module (1), wherein the upper modules (2) have at least two, and the upper modules (2) and the lower module (1) are matched with each other via a guide structure; A pressure rod (4) is fixed between the two upper modules (2); the lower surface of the pressure rod (4) is connected to a connecting rod (3) via an elastic member; the lower end of the connecting rod (3) has a core rod (7) for stamping; At least two mold cavities (5) are provided at two ends of the upper surface of the lower mold block (1), and the inner sides of the two mold cavities (5) are provided with adjustable mold block components that cooperate with the core rod (7) to form the screw bushing; An ejector pin assembly is arranged on the inner side of the lower module (1) to eject the formed screw bushing.

2. A screw bushing mold according to claim 1, characterized in that: The connecting rod (3) is provided with a groove, and a connecting spring (9) matching with the pressure rod (4) is arranged inside the groove.

3. A screw bushing mold according to claim 1, characterized in that: The adjustable mold block assembly comprises a fixed mold block (10), a movable mold block (11), an adjusting screw (12) and an adjusting slider (15); the fixed mold block (10) is fixed to one end of the inner side of the mold cavity (5); a slide groove is provided at the other end of the inner side of the mold cavity (5); an adjusting screw (12) is rotatably installed inside the slide groove; an adjusting slider (15) is sleeved on the outer surface of the adjusting screw (12); and a thread groove (16) matching the adjusting screw (12) is provided on the inner side of the adjusting slider (15); and a movable mold block (11) is provided at the top end of the adjusting slider (15).

4. A screw bushing mold according to claim 3, characterized in that: The fixed block (10) and the movable block (11) are both arc-shaped.

5. The screw bushing mold according to claim 3, characterized in that: Rubber pads (14) are provided at both ends of the upper surface of the movable block (11).

6. The screw bushing mold according to claim 1, characterized in that: The ejector assembly comprises an ejector spring (17), an ejector pin (18) and a connecting slider (19); a mounting groove is provided on the inner side of the lower module (1); the connecting slider (19) is slidably arranged on the inner side of the mounting groove; and a ejector spring (17) is provided on the lower surface of the connecting slider (19); the ejector pin (18) is fixed on the upper surface of the connecting slider (19) to eject the formed screw bushing.

7. A screw bushing mold according to claim 6, characterized in that: The ejector pins (18) are symmetrically arranged at two locations along the center of the long side of the lower module (1).

8. The screw bushing mold according to claim 1, characterized in that: A guide hole (13) is provided at one end of the inner side of the upper module (2), and a guide rod (8) matching with the guide hole (13) is provided on the edge of the upper surface of the lower module (1).

9. A screw bushing mold according to claim 8, characterized in that: The guide rods (8) are arranged at four locations.

10. A stamping system, characterized in that: include: A punching machine and a screw bushing die as described in any one of claims 1 to 9, wherein the screw bushing die is detachably connected to the punching head of the punching machine.

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