Bending and welding tool for special-shaped spring structure

Abstract

The utility model discloses a bending and welding tool of a special-shaped spring structure, and relates to the technical field of tool clamps, a special-shaped spring comprises a spring sheet and a flat plate connected with the spring sheet, the bending and welding tool comprises a bending die and a welding die, the bending die is used for bending the special-shaped spring, and the welding die is used for welding the special-shaped spring. The welding die is used for welding the spring sheet and the flat plate together; the welding die comprises a bottom plate, a die core and bent frames, the two bent frames are arranged at the upper end of the bottom plate, the die core is arranged between the two bent frames, and a cavity used for installing the spring sheet is formed between the die core and the two bent frames. According to the welding die, through the combination of the bottom plate, the die core, the bent frame, the pressing plate and the bolts, the spring sheet and the flat plate can be accurately positioned and firmly fixed. And in the welding process, the two are stable in position and do not deviate, so that the accuracy of the welding position is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture technical field, especially to a kind of bending and welding tool of special-shaped spring structure. BACKGROUND

[0002] In the production and manufacture of special-shaped spring, bending and welding of spring sheet and flat plate are key steps.

[0003] The special-shaped spring is special in shape, and can be specifically seen from the drawings Figure 11 There is no mature standard processing die and equipment on the market, and the cost of customizing cam / needle bending die (material Cr12MoV high-speed steel) is high, including labor cost. Since the quantity of the special-shaped spring is not large, it is difficult to control the cost and process. If a special die is customized for this special-shaped spring, the cost is high and the process is complex. Therefore, the utility model designs the bending and welding tool special for the special-shaped spring. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of bending and welding tool of special-shaped spring structure, to solve the above technical problem.

[0005] The technical scheme adopted by the utility model is as follows: a kind of bending and welding tool of special-shaped spring structure, the special-shaped spring includes spring sheet and the flat plate connected with the spring sheet, the bending and welding tool includes bending die and welding die, the bending die is used to bend the special-shaped spring, the welding die is used to weld the spring sheet and the flat plate together;The welding die includes bottom plate, die core and bending frame, the upper end of the bottom plate is provided with two bending frames, the die core is arranged between two bending frames, and the cavity for installing the spring sheet is formed between the die core and two bending frames.

[0006] As preferred, the welding die further includes a pressing plate, the upper end of two bending frames is provided with the pressing plate, and the flat plate is arranged between the pressing plate and two bending frames.

[0007] As further preferred, it further includes a first bolt, the pressing plate, the bending frame and the bottom plate are connected by the first bolt.

[0008] As further preferred, it further includes a second bolt, the second bolt connects the die core and the bottom plate.

[0009] As further preferred, it further includes a third bolt, the third bolt connects the flat plate and the bending frame.

[0010] As a further preferred, one side of the two said bending frame is provided with a first notch, the lower end of the said pressing plate is provided with a second notch near the first notch, and the two said first notches and the said second notch form a gap.

[0011] As a preferred, the said bending die comprises a bottom die and a top die, the upper end of the said bottom die is provided with a first plane and a first inclined plane, one side of the said bottom die is provided with a second inclined plane, and the two sides of the said first plane are connected with the said first inclined plane and the said second inclined plane; the lower end of the said top die is provided with a second plane matched with the said first plane and a third inclined plane matched with the said second inclined plane, and one side of the said top die is provided with a fourth inclined plane matched with the said first inclined plane.

[0012] As a further preferred, the said bottom die and the said top die are provided with threaded holes for installing fourth bolts.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] (1) In the utility model, the welding die is combined by the bottom plate, the die core, the bending frame, the pressing plate and the bolt, so that the spring sheet and the flat plate can be accurately positioned and firmly fixed. In the welding process, the positions of the spring sheet and the flat plate are stable and will not be deviated, so that the accuracy of the welding position is ensured.

[0015] (2) In the utility model, the tooling avoids the custom-made cam / top pin bending die with high price, and greatly reduces the cost of the die.

[0016] (3) In the utility model, the design of the tooling simplifies the processing technology, and the operation is more convenient, so that the dependence on the skills of the operator is reduced, and the labor cost investment is reduced.

[0017] (4) In the utility model, the accurately matched planes and inclined planes of the bottom die and the top die of the bending die can accurately control the bending angle and shape, and meet the special bending requirements of the special-shaped spring. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the structure schematic view of the welding die in the utility model;

[0019] Figure 2 is the top view of the welding die in the utility model;

[0020] Figure 3 is the explosion schematic view of the welding die in the utility model;

[0021] Figure 4 is the sectional view of the welding die in the utility model;

[0022] Figure 5 is the structure schematic view of the bending frame in the utility model;

[0023] Figure 6 is the structure schematic view of the mold core in the utility model;

[0024] Figure 7 is the structure schematic view of the pressing plate in the utility model;

[0025] Figure 8 is the side view of the bending mold in the utility model;

[0026] Figure 9 is the structure schematic view of the bottom die in the bending mold;

[0027] Figure 10 is the structure schematic view of the top die in the bending mold;

[0028] Figure 11 is the structure schematic view of the spring sheet and the flat plate after welding in the utility model;

[0029] Figure 12 is the structure schematic view of the spring sheet after cutting in the utility model.

[0030] In the figure: 1, spring sheet; 2, flat plate; 3, welding mold; 301, bottom plate; 302, mold core; 303, bending frame; 304, cavity; 305, pressing plate; 306, first bolt; 307, second bolt; 308, third bolt; 309, first notch; 310, second notch; 311, gap gap; 4, bending mold; 401, bottom die; 402, top die; 403, first plane; 404, first inclined surface; 405, second inclined surface; 406, second plane; 407, third inclined surface; 408, fourth inclined surface; 409, threaded hole. DETAILED DESCRIPTION

[0031] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0032] In the description of the utility model, it needs to explain, if appearing the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on, the indicated direction or position relation is based on the direction or position relation shown in the drawing, only is for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the restriction to the utility model of the indicated device or element must have a particular direction, constructs and operates with a particular direction, therefore cannot be understood as the relative importance.

[0033] In the description of the utility model, it needs to explain, unless another explicit provision and limitation, if appearing the term "installation", "connection", "connect" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be the intercommunication of two elements interiorly.For the ordinary skill of the person skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0034] Please see Figures 1 to 12 As shown in the figure, a preferred embodiment is shown, a kind of bending and welding tool of special-shaped spring structure is shown, special-shaped spring includes spring sheet 1 and the flat plate 2 connected by spring sheet 1, bending and welding tool includes bending die 4 and welding die 3, bending die 4 is bent to special-shaped spring, welding die 3 is used to weld spring sheet 1 and flat plate 2 together;Welding die 3 includes bottom plate 301, die core 302 and bending frame 303, the upper end of bottom plate 301 is provided with two bending frames 303, die core 302 is arranged between two bending frames 303, cavity 304 for installing spring sheet 1 is formed between die core 302 and two bending frames 303.In the embodiment, bending die 4 can bend spring sheet 1, so that spring sheet 1 is bent into the shape needed, then manually wind spring sheet 1 into a circle, just as Figure 11 As shown in the figure.Spring sheet 1 after winding is placed in the cavity 304 between die core 302 and two bending frames 303.This is convenient to realize the fixation of spring thin, so that spring sheet 1 and flat plate 2 are welded together, without manual positioning adjustment during welding process.

[0035] In the embodiment, it is not necessary to spend a large amount of funds to customize expensive cam / needle bending die, and the tool structure is simple, convenient to operate, and greatly simplifies the processing technology.

[0036] Further, as a preferred embodiment, the welding mold 3 further comprises a pressing plate 305, the upper end of the two bending frames 303 is provided with the pressing plate 305, and the pressing plate 305 is provided between the two bending frames 303. In this embodiment, the pressing plate 305 is used to press the flat plate 2 and fix the position of the flat plate 2, so as to make the flat plate 2 and the spring sheet 1 fixed, which facilitates the welding between the spring sheet 1 and the flat plate 2. The mold core 302, the bending frame 303 and the pressing plate 305 in this embodiment are made of iron material, which can save a lot of cost, and the bending mold 4 can also be made of iron material or plastic material.

[0037] Further, as a preferred embodiment, the welding mold 3 further comprises a pressing plate 305, the upper end of the two bending frames 303 is provided with the pressing plate 305, and the pressing plate 305 is provided between the two bending frames 303. In this embodiment, the pressing plate 305 is used to press the flat plate 2 and fix the position of the flat plate 2, so as to make the flat plate 2 and the spring sheet 1 fixed, which facilitates the welding between the spring sheet 1 and the flat plate 2. The mold core 302, the bending frame 303 and the pressing plate 305 in this embodiment are made of iron material, which can save a lot of cost, and the bending mold 4 can also be made of iron material or plastic material.

[0038] Further, as a preferred embodiment, the welding mold 3 further comprises a pressing plate 305, the upper end of the two bending frames 303 is provided with the pressing plate 305, and the pressing plate 305 is provided between the two bending frames 303. In this embodiment, the pressing plate 305 is used to press the flat plate 2 and fix the position of the flat plate 2, so as to make the flat plate 2 and the spring sheet 1 fixed, which facilitates the welding between the spring sheet 1 and the flat plate 2. The mold core 302, the bending frame 303 and the pressing plate 305 in this embodiment are made of iron material, which can save a lot of cost, and the bending mold 4 can also be made of iron material or plastic material. Figure 1 As shown in FIG. 6, the gap gap 311 formed by the two first notches 309 and the second notch 310 facilitates the welding of the two ends of the wound spring sheet 1 together through the gap gap 311. Figure 2 As shown in FIG. 6, the gap gap 311 formed by the two first notches 309 and the second notch 310 facilitates the welding of the two ends of the wound spring sheet 1 together through the gap gap 311.

[0039] The welding mold 3 in this embodiment can accurately position and firmly fix the spring sheet 1 and the flat plate 2 of the special-shaped spring, greatly reducing the quality problems caused by welding position deviation. And through the setting of the first bolt 306, the second bolt 307 and the third bolt 308, the bottom plate 301, the bending frame 303, the mold core 302 and the pressing plate 305 can be connected together, the stability of the overall structure of the welding mold 3 is improved, and the welding defects caused by loose mold are reduced.

[0040] Furthermore, in a preferred embodiment, the bending die 4 includes a bottom die 401 and a top die 402. The upper end of the bottom die 401 is provided with a first plane 403 and a first inclined surface 404, and one side of the bottom die 401 is provided with a second inclined surface 405. The first plane 403 connects the first inclined surface 404 and the second inclined surface 405 on both sides. The lower end of the top die 402 is provided with a second plane 406 that mates with the first plane 403 and a third inclined surface 407 that mates with the second inclined surface 405. One side of the top die 402 is provided with a fourth inclined surface 408 that mates with the first inclined surface 404. Threaded holes 409 for installing a fourth bolt are provided on the bottom die 401 and the top die 402. Through the cooperation between the first plane 403 and the second plane 406, the cooperation between the second inclined plane 405 and the third inclined plane 407, and the cooperation between the first inclined plane 404 and the fourth inclined plane 408, the bending angle and shape can be accurately controlled, improving bending accuracy and consistency, and meeting the special bending requirements of irregular springs.

[0041] When using it, first manually cut the 0.4mm thick spring sheet 1 into the shape shown. Figure 12 The strip is shown. The spring sheet 1 is then placed on the bottom mold 401, and the top mold 402 is placed on top, causing the top mold 402 to press down on the spring sheet 1. The fourth bolt is then tightened, causing it to press against the top mold 402, which in turn presses down on the spring sheet 1, causing it to deform and form the desired shape. The mold core 302 is then installed on the base plate 301, and the spring sheet 1 is wound around the outside of the mold core 302. The bending frame 303 is then pushed from one side of the mold core 302. During this process, the toothed edge at the bottom of the spring sheet 1 is manually placed into the bending frame 303, ensuring the movement is gentle and does not damage the toothed edge. Then, push another bending frame 303 from the other side of the mold core 302, and place the rack at the bottom of the spring sheet 1 into the bending frame 303. After installation, place the plate 2 on the upper end of the bending frame 303, so that the inner wall of the plate 2 abuts against the upper outer wall of the spring sheet 1. Then install the pressure plate 305, so that the pressure plate 305 presses down on the plate 2. Then connect the pressure plate 305, the bending frame 303 and the base plate 301 together with the first bolt 306. Then connect the plate 2 and the bending frame 303 together with the third bolt 308, thus fixing the plate 2 and the spring sheet 1. Then, the spring sheet 1 and the plate 2 can be welded together manually.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bending and welding tool for a profile spring structure, the profile spring comprising spring lamellas and a flat plate to which the spring lamellas are connected, characterized in that The bending and welding tool includes a bending die and a welding die, the bending die is used to bend the special-shaped spring, and the welding die is used to weld the spring sheet and the flat plate together; the welding die includes a bottom plate, a die core and a bending frame, the upper end of the bottom plate is provided with two bending frames, the die core is arranged between the two bending frames, and a cavity for mounting the spring sheet is formed between the die core and the two bending frames.

2. The bending and welding tool for profile spring structure according to claim 1, characterized in that, The welding die further includes a pressing plate, the upper end of the two bending frames is provided with the pressing plate, and the pressing plate is arranged between the two bending frames.

3. The bending and welding tooling for profile spring structure of claim 2, wherein, Further comprising a first bolt, the pressing plate, the bending frame and the bottom plate are connected through the first bolt.

4. The bending and welding tool for profile spring structure according to claim 2, wherein Further comprising a second bolt, the second bolt connects the die core and the bottom plate.

5. The bending and welding tool for profile spring structure according to claim 2, wherein Further comprising a third bolt, the third bolt connects the flat plate and the bending frame.

6. The bending and welding tool for profile spring structure according to claim 2, wherein One side of the two bending frames is provided with a first notch, and the lower end of the pressing plate is provided with a second notch near the first notch, and the two first notches and the second notch form a gap.

7. The bending and welding tool for profile spring structure according to claim 1, characterized in that, The bending die includes a bottom die and a top die, the upper end of the bottom die is provided with a first plane and a first inclined surface, one side of the bottom die is provided with a second inclined surface, and the two sides of the first plane are connected with the first inclined surface and the second inclined surface; the lower end of the top die is provided with a second plane matched with the first plane and a third inclined surface matched with the second inclined surface, and one side of the top die is provided with a fourth inclined surface matched with the first inclined surface.

8. The bending and welding tool for profile spring structure according to claim 7, characterized in that, Threaded holes for mounting fourth bolts are arranged on the bottom die and the top die.

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