Jig for solving increment generated by bending of soft row

Abstract

The invention discloses a jig for solving increment generated by bending of a flexible busbar. The jig comprises a bottom plate used for supporting the overall structure of the jig, at least one positioning structure, at least one sliding structure and at least one bending mechanism. The positioning structure, the sliding structure and the bending mechanism are arranged on the bottom plate; the bending mechanism is located between the positioning structure and the sliding structure. The sliding structure comprises a sliding block sliding along the bottom plate, and a length limiting block for limiting the increment length of the foil is arranged on the sliding block. By means of the mode, the problem that in the prior art, due to the fact that the foil is bent, different length increments are caused, and multi-die stamping is needed is solved, the production cost is greatly reduced, the production efficiency is improved, and meanwhile the reject ratio of products is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible rib bending, and in particular to a jig for solving the problem of increasing the bending capacity of flexible rib. Background Art

[0002] During the production of flexible coils, since the product structure is formed by diffusion welding and bending multiple layers of metal foil, it is necessary to calculate the increment based on the number of bends to determine the length of the bent portion, and then stamp it according to the required length to obtain products of various sizes. The products are then arranged in order of size according to the bending direction before welding. However, due to the different length increments of each layer of foil caused by bending, different stamping dies need to be used according to the different lengths of foil during the stamping of the raw materials, which greatly increases production costs. At the same time, the same number of punch presses are required for the production of different types of dies, which further increases production costs. The demand for multiple dies leads to a high occupancy rate of the punch presses and interferes with the production time of other products. In addition, as the number of types of foils increases, the production cost will be higher using the above method, and there will also be an increase in the defective rate due to errors in the order of manual placement of the foil products. Summary of the Invention

[0003] The purpose of the present invention is to provide a jig for solving the problem of increments generated by bending of soft foil, and to solve the problem that foils with different length increments due to bending require multiple molds for stamping, which increases production costs, reduces production efficiency, and causes product defective rates. Through the reasonable design of the jig structure, the length increment generated by the bending of each layer of foil is controlled, so that the foil can be pre-bent and stamped on the jig, and can be applied to a variety of foils, reducing the types of stamping molds, reducing production costs, and improving production efficiency and product quality.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A fixture for solving the problem of incremental bending of soft rows, comprising:

[0006] A base plate for supporting the overall structure of the fixture, at least one positioning structure, at least one sliding structure, and at least one bending mechanism;

[0007] The positioning structure, sliding structure and bending mechanism are all arranged on the bottom plate;

[0008] The bending mechanism is located between the positioning structure and the sliding structure;

[0009] The sliding structure comprises a sliding block sliding along the bottom plate, and a length limiting block for limiting the incremental length of the foil is arranged on the sliding block.

[0010] Preferably, the positioning structure includes a positioning base fixed on the bottom plate, and a detachable positioning cover is provided on the positioning base.

[0011] Preferably, the sliding structure further comprises side limit blocks, which are located on both sides of the sliding block; upper limit blocks are provided on the side limit blocks, which are located above the sliding block.

[0012] Preferably, a product pressing plate is mounted on the slider via a positioning pin, and the length limiting block is located at the rear end of the product pressing plate and is fixed on the slider.

[0013] Preferably, the bending mechanism includes a push rod support and a push rod, and a push rod sliding groove is provided on the push rod support, and the push rod is located in the push rod sliding groove.

[0014] Preferably, a limit block is provided between the slider and the push rod mechanism.

[0015] Preferably, the length of the length-limiting block is determined at least according to the bending angle of the foil.

[0016] Preferably, the length of the length-limiting block is determined by calculating the incremental length of the arc of the bent segment of each layer of foil, and the incremental calculation formula is:

[0017]

[0018] Where θ is the bending angle, R n is the bending radius of the nth layer of foil.

[0019] The beneficial effects of the present invention are:

[0020] (1) The present invention discloses a jig for solving the problem of increments generated by bending of soft strips. By setting a length limit block to limit the increment generated by the bending of each layer of foil, the foil is bent in conjunction with a sliding structure and a bending structure. By setting a length limit block on the slider, the slider moves and drives the length limit block to be close to one end of the foil. The size of the length limit block can be determined according to the length increment generated after the foil is bent. Multiple length limit blocks can be made for multiple layers of foil, so that the cost can be reduced to the greatest extent in the material preparation stage, and the quality of the bending can be accurately controlled without redundant increments that may damage the bending quality. At the same time, holes are reserved on the product pressure plate and the slider for punching the foil with a punch. Combined with the effect of the length limit block, the punching position on the foil can be determined. After punching, the hole position of each layer of foil can be kept consistent. There is no need to use different molds for punching foils of different lengths. This solves the problem in the prior art that different length increments of foil caused by bending require multiple molds for punching, which leads to high production costs, low production efficiency, and product defect rates.

[0021] (2) The present invention discloses a jig for solving the problem of incremental bending of a flexible foil. The jig adopts a modular design and can reasonably arrange the positioning structure, sliding structure, bending mechanism, etc. according to the number of times the foil needs to be bent. The overall structure is simple, easy to disassemble and maintain, and has a low manufacturing cost. The jig is more flexible in use, simplifies the production process, and improves production efficiency compared to existing methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a jig for solving the problem of incremental bending of a flexible row according to the present invention;

[0023] Figure 2 It is a structural diagram of a fixture in a preferred embodiment;

[0024] Figure 3 This is a schematic structural diagram of the fixture from another angle in the preferred embodiment;

[0025] Figure 4 is a schematic diagram of placing a foil on a jig in a preferred embodiment;

[0026] The markings of the components in the accompanying drawings are as follows:

[0027] 1. Product pressure plate; 2. Length limit block; 3. Upper limit block; 4. Side limit block; 5. Slider; 5-1. Threaded hole; 5-2. Positioning hole; 5-3. Punching hole; 6. Positioning cover; 7. Positioning base; 8. Bottom plate; 9. Ejector rod; 10. Ejector rod slide; 11. Limit block; 12. Ejector rod support. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0029] Example:

[0030] This embodiment introduces a jig for solving the problem of incremental bending of flexible ribs.

[0031] like Figure 1-3 As shown, Figure 1 This is a structural diagram of a fixture for solving the problem of incremental bending of a flexible row according to the present invention. Figure 2 This is a schematic diagram of the structure of the fixture in the preferred embodiment. Figure 3 It is a schematic structural diagram of the fixture from another angle in the preferred embodiment.

[0032] A jig for solving the problem of incremental bending of a flexible row includes: a base plate 8, and a positioning structure, a sliding structure, and a bending mechanism located on the base plate 8, wherein the bending mechanism is located between the positioning structure and the sliding structure.

[0033] The bottom plate 8 is used to support the overall structure of the fixture;

[0034] The positioning structure is used to fix the foil and limit its movement, and at least one positioning structure is provided;

[0035] At least one sliding structure and at least one bending mechanism are provided; the sliding structures and bending mechanisms are provided in corresponding numbers. The fixture provided by the present invention can determine the number of sliding structures based on the number of bends in the target product. For example, in a preferred embodiment, if the product has two bends, two sliding structures and two bending mechanisms are required.

[0036] In a preferred embodiment, the positioning structure includes a positioning base 7 fixed to a bottom plate 8, with a removable positioning cover 6 mounted on the positioning base 7. This structure compresses the foil, and the holes reserved in the foil design are fixed to the positioning cover and the positioning base with pins, thereby achieving the purpose of limiting the position of the foil.

[0037] In a preferred embodiment, the sliding structure includes a slider 5 that slides along a base plate 8 and side limiters 4. The side limiters 4 are located on either side of the slider 5, forming a sliding track. Upper limiters 3 are mounted on the side limiters 4 and are secured to the side limiters 4 via pins and screws. The upper limiters 3 are located above the slider 5. The side limiters guide the slider's sliding trajectory. The upper limiters prevent the slider from dislodging from the track.

[0038] In a preferred embodiment, a product pressing plate 1 and a length limiting block 2 are installed on the slider 5 via positioning pins. The product pressing block 1 is located at the front end of the slider 5, and threaded holes 5-1 and positioning holes 5-2 for fixing are provided at corresponding positions on the product pressing plate 1 and the slider 5. When in use, the foil is placed on the slider, and the bolts fix the product pressing plate to the slider. The product pressing block presses the foil tightly against the slider, and then the positioning pins are used for further limiting to prevent the foil from displacement. The length limiting block 2 is located at the rear end of the product pressing plate 1. The length limiting block 2 moves with the slider 1 and is tightly attached to one end of the foil, which serves to limit the bending increment of the foil during the bending process. At the same time, punching holes 5-3 are reserved on the product pressing plate 1, and corresponding holes are also reserved on the slider 5.

[0039] In the present invention, the jig can directly punch holes in the foil, eliminating the need for an additional punching machine. A punch is used to penetrate the holes in the product pressing plate 1 and then through the foil, resulting in a hole in the foil that is convenient for positioning during subsequent diffusion welding, improving production efficiency and saving costs.

[0040] In order to improve the accuracy of bending, a limit block 11 is set between the slider 5 and the push rod mechanism. During operation, the slider 5 is pushed forward to make it close to the limit block 11, so that each foil can reach the relative length when bent.

[0041] In a preferred embodiment, the bending mechanism includes a push rod support 12 and a push rod 9. A push rod slot 10 is provided on the push rod support 12, and the push rod 9 is positioned within the push rod slot 10. The push rod 9 can be removed from the push rod slot 10 before inserting the foil. During use, the push rod 9 is inserted into the push rod slot 10 according to the bending direction, ensuring that the push rod 9 is positioned on the same side as the bending direction. The push rod is then pulled up or pressed down accordingly to deform the foil in the same direction as the bending direction, achieving pre-bending for subsequent steps. Using a push rod ensures smooth pre-bending of the product and also ensures bending quality.

[0042] The structures in the solutions of the present invention can be designed in a modular manner, which is convenient for assembly and disassembly. They can also be designed according to different types of products and the number of bends required, and the positions of each structure can be arranged, which increases the flexibility of the use of the fixture. Compared with the processing methods in the prior art, the operation is more convenient.

[0043] The length limit block in the present invention is a replaceable design, and length limit blocks of different sizes can be made to meet the needs of foils with different length increments. The length of the length limit block is determined at least according to the bending angle of the foil. The length limit block is designed to control the bending increment of the foil so that after bending, the multi-layer foil can obtain positioning holes with the same hole position in theory through punching. The length of the length limit block is determined based on the length increment of each layer of foil. During the bending process, only the corresponding length limit block needs to be replaced for the bending increment. For ease of understanding, we explain the determination of the length of the length limit block as follows:

[0044] Since the flexible flex strip is composed of multiple layers of foil, when the flexible flex strip is bent, the length of each layer of foil will be different due to the bending increment. In this embodiment, we propose the following method to calculate the length increment of each layer of foil due to bending.

[0045] Assume that the radius of each foil bending from inside to outside is R1, R2, R3...R n , the bending angle of each foil is the same as θ, then the arc length of each layer of foil in the bending section can be calculated as S1=2πR1θ / 360°, S2=2πR2θ / 360°, S3=2πR3θ / 360°……S n =2πR n θ / 360°.

[0046] Furthermore, the arc length difference between the bent sections of two adjacent foil layers is ΔS=S n -S n-1 =2πθ(R n -R n-1 ) / 360°. This arc length difference is the length increment produced after each layer of foil is bent, and this length increment determines the length of the length limiter.

[0047] It is known that each layer of foil has the same thickness and is tightly fitted. n -R n-1 =k is a constant value, so ΔS = 2πθk / 360° is a constant value.

[0048] Therefore, when the bending angle and foil thickness are constant, the arc length difference ΔS between adjacent foil layers is a constant value. That is, it can be seen from calculation that the increment of the bending arc length of each layer of foil is an arithmetic progression.

[0049] Based on the above calculation method, the length size of the length limit block 2 in the present invention is determined according to the length increment (arc length difference) obtained by the above calculation. Since the foil has multiple layers, multiple length limit blocks with different length increments can be obtained. When using this fixture, it is only necessary to replace the corresponding length limit block according to the arc length difference calculated above to achieve the bending of multiple layers of foil and punching of the foil. For example, according to the order from the outermost to the innermost during bending, we first select the corresponding length limit block for the outermost foil corresponding to the bending angle in the bend. After installation and positioning, pre-bend and punch the foil; then change the length limit block of the next level to repeat the above operation; until the length limit block corresponding to the innermost foil is changed, the pre-bending and punching of the foil is completed. Repeat this process, and each piece of foil can complete the reservation of the bending increment under the restriction of its corresponding length limit block 2, and achieve consistency in the punching hole position of each layer of foil. This approach solves the existing problem of multiple dies required to stamp different length increments due to foil bending, significantly reducing production costs, improving efficiency, and lowering product defect rates. Both bending and punching can be performed on the jig, improving production efficiency. The jig's modules can be arranged according to the number of bends required for the product, making it more flexible to use and operate, accommodating a wide range of foil types.

[0050] The fixture proposed by the present invention has a simple structure, is easy to operate, assemble and maintain, and has a low manufacturing cost.

[0051] Use of this fixture:

[0052] Combine Figure 4 As shown, Figure 4This is a schematic diagram of placing the foil on the jig in a preferred embodiment. Remove the product pressing plate 1, positioning cover plate 6, and ejector pin 9; select the corresponding length limit block 2 and install it on the slider 5, and move the slider away from the bending mechanism, place the metal foil on the positioning base 7, and move the slider 5 so that the length limit block 2 is in close contact with the foil; return the product pressing plate 1 and positioning cover plate 6 to their corresponding original positions, and use the corresponding screws to lock them in the corresponding threaded holes; insert the ejector pin 9 into the ejector pin slot 10 according to the bending direction, and use the ejector pin 9 to pre-bend the foil upward or downward; use a punch to punch holes in the corresponding holes of the pressing plate 1 and the slider 5 to obtain punched holes on the foil; remove the foil after completion; repeat the above operations to complete the pre-bending process of multiple layers of foil, and stack the bent foils in order for subsequent processing.

[0053] The length limiting block 2 in the fixture is provided with replacement parts (quickly replaceable modules) of different sizes. When all the same foils are placed, incremental compensation can be achieved by replacing the length limiting blocks 2 of different sizes.

[0054] The present invention limits the increment produced by the bending of each layer of foil by means of a length limiting block, and realizes the bending of the foil in cooperation with the sliding structure and the bending structure; further, the punching position on the foil can be determined by the cooperation between the modules and the action of the length limiting block, and the punch passes through the punching holes on the product pressing plate and the slider, thereby punching holes in the foil, thereby obtaining the same hole position for each layer of foil after punching, and there is no need to use different molds for punching foils of different lengths, which simplifies the operation and improves the production efficiency, and ensures the consistency of the punching hole positions on the foil after bending.

[0055] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fixture for solving the problem of incremental bending of soft rows, characterized by: include: a base plate (8) for supporting the overall structure of the jig, at least one positioning structure, at least one sliding structure, and at least one bending mechanism; The positioning structure, sliding structure, and bending mechanism are all arranged on the bottom plate (8); The bending mechanism is located between the positioning structure and the sliding structure; The sliding structure comprises a sliding block (5) sliding along the bottom plate (8), and a length limiting block (2) for limiting the incremental length of the foil is arranged on the sliding block (5).

2. A jig for solving the problem of incremental bending of a flexible row according to claim 1, characterized in that: The positioning structure comprises a positioning base (7) fixed on a bottom plate (8), and a detachable positioning cover plate (6) is provided on the positioning base (7).

3. The jig for solving the problem of incremental bending of a flexible row according to claim 1 is characterized in that: The sliding structure further comprises side limit blocks (4), which are located on both sides of the slider (5); an upper limit block (3) is provided on the side limit blocks (4), and the upper limit block (3) is located above the slider (5).

4. The jig for solving the problem of incremental bending of a flexible row according to claim 1 is characterized in that: A product pressing plate (1) is mounted on the slider (5) via a positioning pin, and the length limiting block (2) is located at the rear end of the product pressing plate (1) and is fixed on the slider (5).

5. The jig for solving the problem of incremental bending of a flexible row according to claim 1 is characterized in that: The bending mechanism comprises a push rod support (12) and a push rod (9); a push rod sliding groove (10) is provided on the push rod support (12); and the push rod (9) is located in the push rod sliding groove (10).

6. The jig for solving the problem of incremental bending of a flexible row according to claim 1 is characterized in that: A limiting block (11) is provided between the slider (5) and the push rod mechanism.

7. The jig for solving the problem of incremental bending of flexible ribs according to claim 1 is characterized in that: The length of the length-limiting block (2) is determined at least according to the bending angle of the foil.

8. The jig for solving the problem of incremental bending of a flexible row according to claim 7, characterized in that: The length of the length-limiting block (2) is determined by calculating the incremental length of the arc of the bending section of each layer of foil. The incremental calculation formula is: Where θ is the bending angle, R n is the bending radius of the nth layer of foil.

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