Spring forming machine preventing bending scratch

Abstract

The utility model discloses a spring forming machine of preventing bending and scratching belongs to spring production equipment technical field. This equipment is in view of the spring ring section processing demand with spring mounting hook, through the online material rotation setting around the installation seat top spring ring processing module, installation hook bending forming module and so on function module, wherein installation hook bending forming module adopts the installation hook bending wheel of rotary setting to replace traditional arc forming block, changes sliding friction into rolling friction, effectively avoids the processing scratch of spring mounting hook outside surface. Further configuration spring wire limiting groove and spring end grinding module, ensure the machining accuracy and eliminate the fracture residual. The utility model solves the surface damage problem in the precise spring processing through the improvement product structure (the rotary setting of installation hook bending wheel), improves product pass rate and tin soldering performance.

Description

Technical Field

[0001] This utility model applies to the field of spring production equipment technology, and provides a spring forming machine that prevents bending and scratches. Background Technology

[0002] One type of spring workpiece in our company (see attached instruction manual for details) Figure 5 As shown in the design requirements, one end of the spring coil is connected to a spring mounting hook. This type of spring mounting hook is generally formed by bending an arc-shaped block during production. However, the conventional arc-shaped block has hard contact with the wire, which often causes scratches on the outer surface of the spring mounting hook during the bending process. Since this type of spring workpiece is used for precision manufacturing, such scratches will affect the subsequent soldering performance. Therefore, a spring forming machine that can prevent bending scratches is needed. Utility Model Content

[0003] Therefore, this utility model provides a spring forming machine to prevent scratches during bending. The bending process is carried out by rotating the bending wheel with the mounting hook. By changing the sliding friction to rolling friction, scratches at the bending position are reduced.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a spring forming machine to prevent bending and scratching, wherein the aforementioned spring workpiece includes a spring coil segment, one end of which is connected to a spring mounting hook, comprising:

[0005] Wire rotating mounting bracket, used to fix the wire required for spring processing;

[0006] The rotating mounting base surrounding the wire is equipped with a top spring ring processing module, a mounting hook end bending module, a mounting hook bending and abutment module, a spring cutting module, a spring ring end auxiliary positioning module, and a mounting hook bending and forming module. Each of these modules is equipped with a top spring ring processing blade, a mounting hook end bending block, a mounting hook inner bending and abutment shaft, a spring end cutting blade, a spring ring end positioning block, and a mounting hook bending and forming block, all of which are movable towards the rotating mounting base. The mounting hook bending and forming block has a rotatable mounting hook bending wheel on the side facing the rotating mounting base.

[0007] Furthermore, the bending wheel of the mounting hook is rotatably mounted on the bending block of the mounting hook via a bearing, and a spring wire limiting groove is provided around the outer side of the bending wheel of the mounting hook, with the bottom surface of the spring wire limiting groove being an arc surface.

[0008] Furthermore, the spring cutting module also includes a spring dropping guide plate, which is disposed on one side of the spring end cutting blade.

[0009] Furthermore, it also includes a spring end grinding module, which is equipped with a spring end grinding block that can move towards the wire rotating mounting base.

[0010] Furthermore, the top spring ring processing module includes a spring ring processing drive device, which includes a top drive track and a top drive motor. A top drive block is connected to a sliding rail inside the top drive track. The top drive motor is driven by the top drive block and is used to drive the top drive block to reciprocate along the top drive track. The top spring ring processing cutter is fixedly mounted on the top drive block.

[0011] The mounting hook end bending module, spring end grinding module, mounting hook bending and abutment module, spring cutting module, spring coil end auxiliary positioning module, and mounting hook bending and forming module all include a spring forming crank drive device. The spring forming crank drive device includes a forming drive track, a drive cam, and a rotatably mounted drive crank. A forming drive block is connected to a sliding rail inside the forming drive track. One end of the drive crank is connected to the forming drive block via a connecting rod transmission. The drive cam is driven to rotate by a motor. During the rotation of the drive cam, it pushes one end of the drive crank, thereby driving the drive crank to rotate and thus driving the forming drive block to move. The mounting hook end bending block, spring end grinding block, mounting hook inner bending and abutment shaft, spring end cutting blade, spring coil end positioning block, and mounting hook bending and forming block are respectively fixedly mounted on the mounting hook end bending module, spring end grinding module, mounting hook bending and abutment module, spring cutting module, spring coil end auxiliary positioning module, and mounting hook bending and forming module's forming drive block.

[0012] Furthermore, a return spring is connected to the tail end of the molding drive block, and the other end of the return spring is connected to the molding drive track.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In the present invention, the bending position of the spring mounting hook is processed by rotating the mounting hook bending wheel. The mounting hook bending wheel rotates smoothly through bearings and other structures. During processing, the sliding friction between the mounting hook bending wheel and the wire is changed to rolling friction, so as to reduce scratches on the bending position of the spring mounting hook.

[0015] 2. Grind the cut position of the wire with the grinding block at the end of the spring to avoid leaving cut residue at the break. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a spring forming machine for preventing bending and scratching mentioned in this utility model;

[0017] Figure 2 This is a schematic diagram showing the positions of the top spring ring processing knife, the end bending block of the mounting hook, the end grinding block of the spring, the inner bending abutment shaft of the mounting hook, the end cutting knife of the spring, the end positioning block of the spring ring, and the bending forming block of the mounting hook and the wire rotating mounting seat mentioned in this utility model.

[0018] Figure 3 This is a schematic diagram of the top spring ring processing module mentioned in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the spring-formed crank drive device mentioned in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the spring workpiece mentioned in this utility model.

[0021] In the picture:

[0022] 100. Wire rotating mounting bracket;

[0023] 200. Top spring coil processing module; 210. Top spring coil processing tool; 220. Top drive rail; 230. Top drive block; 240. Top drive motor.

[0024] 300. Install hook end bending module; 310. Install hook end bending block; 320. Forming drive track; 330. Forming drive block; 340. Drive crank; 350. Drive cam; 360. Return spring.

[0025] 400. Spring end grinding module; 410. Spring end grinding block;

[0026] 500. Install the hook bending abutment module; 510. Install the hook inner bending abutment shaft;

[0027] 600. Spring cutting module; 610. Spring end cutting blade; 620. Spring discharge guide plate;

[0028] 700. Spring coil end auxiliary positioning module; 710. Spring coil end positioning block;

[0029] 800. Install the hook bending forming module; 810. Install the hook bending forming block; 820. Install the hook bending wheel;

[0030] 900. Spring workpiece; 910. Spring coil segment; 920. Spring mounting hook. Detailed Implementation

[0031] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0032] Example, see attached document Figure 1 The present invention provides a spring forming machine that prevents bending and scratching, as shown in the attached figure. Figure 5 As shown, the aforementioned spring workpiece 900 includes a spring coil segment 910, one end of which is connected to a spring mounting hook 920. It includes a wire rotating mounting base 100 for fixing the wire required for spring processing. Surrounding the wire rotating mounting base 100 are a top spring coil processing module 200, a mounting hook end bending module 300, a spring end grinding module 400, a mounting hook bending and abutment module 500, a spring cutting module 600, a spring coil end auxiliary positioning module 700, and a mounting hook bending and forming module 800.

[0033] As attached Figure 2 As shown, the top spring ring processing module 200, the mounting hook end bending module 300, the spring end grinding module 400, the mounting hook bending and abutment module 500, the spring cutting module 600, the spring ring end auxiliary positioning module 700, and the mounting hook bending and forming module 800 are respectively equipped with a top spring ring processing knife 210, a mounting hook end bending block 310, a spring end grinding block 410, a mounting hook inner bending and abutment shaft 510, a spring end cutting knife 610, a spring ring end positioning block 710, and a mounting hook bending and forming block 810 that can move towards the wire rotating mounting seat 100. The mounting hook bending and forming block 810 is rotatably equipped with a mounting hook bending wheel 820 on the side facing the wire rotating mounting seat 100. The mounting hook bending wheel 820 is rotatably mounted on the mounting hook bending and forming block 810 through a bearing. A spring wire limiting groove is provided around the outer side of the mounting hook bending wheel 820. The bottom surface of the spring wire limiting groove is an arc surface.

[0034] To drive the operation of each module, the top spring coil processing module 200 includes a spring coil processing drive device, as shown in the attached diagram. Figure 3 As shown, the spring ring processing drive device includes a top drive rail 220 and a top drive motor 240. A top drive block 230 is connected to a sliding rail inside the top drive rail 220. The top drive motor 240 is driven by the top drive block 230 and is used to drive the top drive block 230 to reciprocate along the top drive rail 220. The top spring ring processing cutter 210 is fixedly mounted on the top drive block 230. Usually, because the top spring ring processing cutter 210 requires the most precise movement, the top drive motor 240 is a servo motor that can be precisely controlled. The servo motor drives the top drive block 230 to reciprocate through an eccentric wheel linkage mechanism.

[0035] The mounting hook end bending module 300, spring end grinding module 400, mounting hook bending and abutment module 500, spring cutting module 600, spring ring end auxiliary positioning module 700, and mounting hook bending and forming module 800 all include a spring forming crank drive device, as shown in the attached... Figure 4 As shown, the spring-forming crank drive device includes a forming drive track 320, a drive cam 350, and a rotatably mounted drive crank 340. A forming drive block 330 is connected to a sliding rail within the forming drive track 320. A return spring 360 is connected to the tail end of the forming drive block 330, and the other end of the return spring 360 is connected to the forming drive track 320. One end of the drive crank 340 is connected to the forming drive block 330 via a connecting rod transmission. The drive cam 350 is driven to rotate by a motor. During its rotation, the drive cam 350 pushes one end of the drive crank 340, thereby causing the drive crank 340 to rotate and thus moving the forming drive block 330. During one revolution of the drive cam 350, it is only in contact with the drive crank 340 for a portion of the time; for the remaining time, the drive cam 350 is separated from the drive crank 340. During this portion of time, the forming drive block 330 will... Under the action of the positioning spring 360, the hook end bending block 310, spring end grinding block 410, hook inner bending abutment shaft 510, spring end cutting blade 610, spring ring end positioning block 710, and hook bending forming block 810 are respectively fixed on the forming drive block 330 of the hook end bending module 300, spring end grinding module 400, hook bending abutment module 500, spring cutting module 600, spring ring end auxiliary positioning module 700, and hook bending forming module 800. When all drive cams 350 are driven synchronously by the same set of motors, by precisely setting the initial angle of the drive cams 350 of each module, the action time of the forming drive block 330 of each module can be staggered. This allows for adjustment according to the sequence of each process, reducing the overall number of drive motors and lowering equipment costs.

[0036] In one of the more preferred solutions, the spring cutting module 600 also includes a spring dropping guide plate 620, which is located on one side of the spring end cutting blade 610. When the spring workpiece 900 is cut by the spring end cutting blade 610, the spring dropping guide plate 620 will guide the spring workpiece 900 to a designated direction to prevent the spring workpiece 900 from flying around randomly.

[0037] The working steps of this embodiment are as follows:

[0038] The wire feeding device (this part of the structure is a standard feature of spring machines and will not be described in detail here) feeds the spring wire through the end of the wire rotating mounting base 100. The wire rotating mounting base 100 clamps the main spring wire and begins the processing of the spring workpiece 900. First, the spring wire is pressed against one side by the inner bending abutment shaft 510 of the mounting hook. Then, the mounting hook bending wheel 820 rolls and bends the spring wire from the other side to form the spring mounting hook 920. Finally, the bottom of the spring mounting hook 920 is bent by the bending block 310 at the end of the mounting hook. The wire is bent 90 degrees in preparation for processing the spring coil section 910. During the processing of the spring coil section 910, the spring wire is first pressed down from one side by the spring coil end positioning block 710. Then, the spring coil section 910 is processed by the top spring coil processing cutter 210. At the same time as the spring coil section 910 is processed, the spring end grinding block 410 grinds the beginning end of the spring wire. Finally, the spring end cutting cutter 610 cuts it to form an independent spring workpiece 900. Finally, the spring workpiece 900 falls into the designated finished product collection box through the spring dropping guide plate 620.

[0039] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0040] The above are merely preferred embodiments of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A spring forming machine for preventing bending and scratches, wherein the aforementioned spring workpiece includes a spring coil segment, one end of which is connected to a spring mounting hook, characterized in that, include: Wire rotating mounting bracket, used to fix the wire required for spring processing; The rotating mounting base surrounding the wire is equipped with a top spring ring processing module, a mounting hook end bending module, a mounting hook bending and abutment module, a spring cutting module, a spring ring end auxiliary positioning module, and a mounting hook bending and forming module. Each of these modules is equipped with a top spring ring processing blade, a mounting hook end bending block, a mounting hook inner bending and abutment shaft, a spring end cutting blade, a spring ring end positioning block, and a mounting hook bending and forming block, all of which are movable towards the rotating mounting base. The mounting hook bending and forming block has a rotatable mounting hook bending wheel on the side facing the rotating mounting base.

2. The spring forming machine for preventing bending and scratching according to claim 1, characterized in that: The bending wheel of the mounting hook is rotatably mounted on the bending block of the mounting hook via a bearing. A spring wire limiting groove is provided around the outer side of the bending wheel of the mounting hook, and the bottom surface of the spring wire limiting groove is an arc surface.

3. A spring forming machine for preventing bending and scratching according to claim 2, characterized in that: The spring cutting module also includes a spring dropping guide plate, which is disposed on one side of the spring end cutting blade.

4. A spring forming machine for preventing bending and scratching according to any one of claims 1-3, characterized in that: It also includes a spring end grinding module, which is equipped with a spring end grinding block that can move toward the wire rotating mounting base.

5. A spring forming machine for preventing bending and scratching according to claim 4, characterized in that: The aforementioned top spring ring processing module includes a spring ring processing drive device, which includes a top drive rail and a top drive motor. A top drive block is connected to a sliding rail inside the top drive rail. The top drive motor is driven by the top drive block and is used to drive the top drive block to reciprocate along the top drive rail. The top spring ring processing cutter is fixedly mounted on the top drive block. The mounting hook end bending module, spring end grinding module, mounting hook bending and abutment module, spring cutting module, spring coil end auxiliary positioning module, and mounting hook bending and forming module all include a spring forming crank drive device. The spring forming crank drive device includes a forming drive track, a drive cam, and a rotatably mounted drive crank. A forming drive block is connected to a sliding rail inside the forming drive track. One end of the drive crank is connected to the forming drive block via a connecting rod transmission. The drive cam is driven to rotate by a motor. During the rotation of the drive cam, it pushes one end of the drive crank, thereby driving the drive crank to rotate and thus driving the forming drive block to move. The mounting hook end bending block, spring end grinding block, mounting hook inner bending and abutment shaft, spring end cutting blade, spring coil end positioning block, and mounting hook bending and forming block are respectively fixedly mounted on the mounting hook end bending module, spring end grinding module, mounting hook bending and abutment module, spring cutting module, spring coil end auxiliary positioning module, and mounting hook bending and forming module's forming drive block.

6. A spring forming machine for preventing bending and scratching according to claim 5, characterized in that: The tail end of the molding drive block is connected to a reset spring, and the other end of the reset spring is connected to the molding drive track.

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