CN216989492U - Small-size fastener is from opening elasticity clamp mould in advance - Google Patents

Abstract

The utility model discloses a self-pre-opening elastic hoop die for a small-size fastener, which comprises: the mould comprises an upper mould and a lower mould, wherein the upper mould consists of an upper template, a fixing plate and punches, the lower mould consists of a stripper plate, a concave template, a lower template, a bending module and a typing punch, the fixing plate is fixedly connected to the bottom end of the upper template, the stripper plate is fixedly connected to the upper end of the concave template, the fixing plate is opposite to the stripper plate from top to bottom, and a round hole punch, a positioning pin, a long hole punch and a blanking punch are fixedly connected in the fixing plate in sequence along the direction from a mould feeding end to a mould discharging end, so that the mould has the following advantages: the automatic machine feeding length is adopted as the step pitch during layout, the consistency of products is guaranteed, a pair of dies can simultaneously complete blanking and forming of multiple working steps, the output of punching machine equipment and operators is reduced, the manufacturing cost is reduced, the requirement for the consistency of the products is met, and the production efficiency is improved.

Description

Small-size fastener is from opening elasticity clamp mould in advance

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a self-pre-opening elastic hoop die for a small-specification fastener.

Background

With the rapid development of the automobile industry, the demand of various automobile parts is increasing, and a steel strip type elastic clamp is one of the fastening pieces of the products, and the steel strip type elastic clamp is used for connecting a fixed hose and a connecting pipe on an automobile and ensuring the sealing performance of the connecting part. And the pre-opened clamp not only quickens the assembly progress of the clamp, but also lightens the labor intensity of workers. Wherein the self-opening clamp is favored by customers due to less material and low cost.

Under the prior art, the shape of the self-pre-opening clamp is complex, the machining procedures of a common punch press are multiple, the consistency of products is poor, the production efficiency is low, the self-pre-opening clamp is not suitable for mass production, and the market demand can not be met, so that a clamp die capable of enabling the clamp to be completed from blanking to forming at one time is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that the self-pre-opening clamp is complex in shape, multiple in processing procedures of a common punch press, poor in product consistency, low in production efficiency, not suitable for mass production and incapable of meeting market requirements, and a self-pre-opening elastic clamp die for a small-specification fastener is provided for the purpose.

The technical scheme adopted by the utility model for solving the technical problem is as follows: small dimension fastener is from opening elasticity clamp mould in advance, and it includes: go up mould and lower mould, it comprises cope match-plate pattern, fixed plate and each drift to go up the mould, the lower mould comprises stripper, cavity plate, lower bolster, the module of bending and the drift of typing, fixed plate fixed connection is in the bottom of cope match-plate pattern, stripper fixed connection is in the upper end of cavity plate, the fixed plate is relative from top to bottom with the stripper, in the fixed plate and along mould pay-off end to mould discharge end direction fixedly connected with round hole drift, locating pin, slot hole drift and blanking drift in proper order, in the fixed plate along middle part to discharge end direction fixedly connected with dysmorphism drift, locating pin and the drift of pressing the word in proper order, the fixed plate, be close to discharge end direction fixedly connected with drift and locating pin of bending in proper order in the fixed plate.

When the die is closed, the thickness of a part material is equal to the clearance between the bending punch and the character pressing punch and the concave die plate, and the heights of the bending punch and the character pressing punch are strictly controlled.

When the die is closed, the blanking punch, the long hole punch and the special-shaped punch are inserted into the female die plate for two to three part material thicknesses, the heights of the punches are strictly controlled, and the die is prevented from being damaged due to bending and character pressing in the blanking process.

The typing punch is arranged below the character pressing punch relatively, the typing punch is fixedly connected in the concave template, and the typing punch piece is matched with the character pressing punch to press out the mark.

The bending die block is arranged below the bending punch relatively, the bending die block is fixedly connected into the concave die plate, the bending punch and the bending die block are closed up and down, and the middle part surrounded by the special-shaped hole is bent.

The utility model has the following advantages: the automatic machine feeding length is adopted as the step pitch during layout, the consistency of products is guaranteed, the die realizes that one die simultaneously completes blanking and forming of multiple working steps, the output of punching machine equipment and operators is reduced, the manufacturing cost is reduced, the requirement on the consistency of the products is met, and the production efficiency is improved.

Drawings

FIG. 1 is a front view cross-sectional schematic view of a small gauge fastener self-pre-expanding elastomeric clip mold according to a preferred embodiment of the present invention;

FIG. 2 is a schematic top view of a preferred embodiment of the utility model showing the operative condition of the small gauge fastener self-expanding spring band clamp mold;

FIG. 3 is a schematic view of the punch structure of the round hole, slot hole and tab profile of the small gauge fastener self-pre-tensioning springy clip mold of a preferred embodiment of the present invention;

FIG. 4 is a schematic view of a stamped configuration of a shaped hole and logo of a self-expanding spring band die of a small gauge fastener in accordance with a preferred embodiment of the present invention;

FIG. 5 is a schematic view of the bending configuration of a small gauge fastener self-pre-tensioning spring band die in accordance with a preferred embodiment of the present invention.

Description of the reference numerals: 1. mounting a template; 2. a fixing plate; 3. a stripper plate; 4. a cavity plate; 5. a lower template; 6. a bending module; 7. a typing punch; 8. a circular hole punch; 9. a long hole punch; 10. blanking punch; 11. a special-shaped punch; 12. pressing a character punch; 13. bending the punch; 14. and positioning pins.

Detailed Description

The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

The small-specification fastener self-pre-opening elastic hoop die comprises an upper die and a lower die, wherein the upper die comprises an upper die plate 1, a fixing plate 2 and punches, the lower die comprises a discharge plate 3, a concave die plate 4, a lower die plate 5, a bending module 6 and typing punches 7, when the small-specification fastener self-opening elastic hoop die works, a strip material is inserted into a guide chute of the discharge plate 3 and is fed leftwards from a right-end feeding end, the fixing plate 2 is fixedly connected to the bottom end of the upper die plate 1, the discharge plate 3 is fixedly connected to the upper end of the concave die plate 4, the fixing plate 2 is opposite to the discharge plate 3 from top to bottom, a round-hole punch 8, a positioning pin 14, a long-hole punch 9 and a blanking punch 10 are fixedly connected in sequence in the fixing plate 2 along the direction from the die feeding end to the die discharging end, the die works in a skipping mode, three steps are provided, the step pitch is the feeding length, and the round-hole punch 8, the long-hole punch 9 and the punch 10 respectively, The special-shaped punch 11, the positioning pin 14 and the stamping punch 12 are fixedly connected in sequence along the direction from the middle to the discharge end in the fixing plate 2, the fixing plate 2 is used for feeding a material length to the left in the second step, the special-shaped punch 11 punches a special-shaped hole by taking the center of the strip as a symmetry axis, the position of the round hole is ensured, the stamping punch 12 presses out the mark, the bending punch 13 and the positioning pin 14 are fixedly connected in sequence in the fixing plate 2 close to the direction of the discharge end, the strip is continuously fed with a material length to the left in the third step, the bending punch 13 bends, and in order to ensure the symmetry degree of the part, three groups of six positioning pins 14 are adopted to limit the displacement of the steel belt in the feeding process.

In order to press out the mark conveniently, the typing punch 7 is arranged below the character pressing punch 12 relatively, the typing punch 7 is fixedly connected in the concave template 4, and the typing punch 7 is matched with the character pressing punch 12 to press out the mark.

For convenience of bending, the bending module 6 is arranged below the bending punch 13, the bending module 6 is fixedly connected in the cavity plate 4, and the bending punch 13 and the bending module 6 are closed up and down to bend the middle part surrounded by the special-shaped hole.

When the die is closed, the gaps between the bending punch 13, the character pressing punch 12 and the concave die plate 4 are one part material thickness, when the die is closed, the blanking punch 10, the long hole punch 9 and the special-shaped punch 11 are inserted into the concave die plate 4 for two to three part material thicknesses, and the die is prevented from being damaged due to bending and character pressing in the blanking process by strictly controlling the heights of the punches.

The working principle is as follows: the die is installed on a small automatic forming machine, when the die works, a strip material is inserted into a guide chute of a discharging plate 3 and is fed leftwards from a right end feeding end, firstly, as shown by a shaded part in figure 3, a round hole punch 8, a long hole punch 9 and a discharging punch 10 punch a round hole, a long hole and a small lug respectively, secondly, as shown in figure 4, the strip material is fed leftwards for one material length, a special-shaped punch 11 punches a special-shaped hole by taking the strip material center as a symmetry axis to ensure the position of the round hole, and simultaneously, a typing punch 7 and a character pressing punch 12 press out a mark, thirdly, as shown in figure 5, the strip material is continuously fed leftwards for one material length, a bending punch 13 and a bending module 6 are closed up and down, and the middle part surrounded by the special-shaped hole is bent.

The descending stroke of the automatic machine is controlled when the die works, before the die works, the descending stroke of the automatic machine punch press is firstly determined according to the closing height of a bending punch 13, when the punch press hammer head descends to the bottom dead point, the punch press is bent and formed, the blanking punch 10 and the special-shaped punch 11 cut materials, the materials enter the concave die plate 4, the punch press hammer head is ensured not to continuously descend to damage the die, and the punching work of each punch is simultaneously completed on each station of the die every time, so that a complete part is obtained.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Other parts of the utility model not described in detail are prior art and are not described in detail herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (5)

1. Small dimension fastener is from opening elasticity clamp mould in advance includes: the upper die and the lower die are characterized in that the upper die comprises an upper die plate (1), a fixing plate (2) and punches, the lower die comprises a stripper plate (3), a concave die plate (4), a lower die plate (5), a bending module (6) and typing punches (7), the fixing plate (2) is fixedly connected with the bottom end of the upper die plate (1), the stripper plate (3) is fixedly connected with the upper end of the concave die plate (4), the fixing plate (2) is vertically opposite to the stripper plate (3), a round hole punch (8), a positioning pin (14), a long hole punch (9) and a blanking punch (10) are sequentially and fixedly connected in the fixing plate (2) along the direction from the feeding end of the die to the discharging end of the die, a special-shaped punch (11), a positioning pin (14) and a character pressing punch (12) are sequentially and fixedly connected in the fixing plate (2) along the direction from the middle part to the discharging end, the fixing plate (2), be close to ejection of compact end direction fixedly connected with in fixed plate (2) and press bending drift (13) and locating pin (14) in proper order.

2. The small format fastener self-pretensioning sprung band die of claim 1, characterized in that the gap between the press bending punch (13) and the lettering punch (12) and the cavity plate (4) when the die is closed is one part material thickness.

3. The small format fastener self-pretensioning sprung band die of claim 1, characterized in that the blanking punch (10), the long hole punch (9) and the profiled punch (11) are inserted into the cavity plate (4) two to three part material thicknesses when the die is closed.

4. The small format fastener self-pretensioning bail mold of claim 1, wherein the typing punch (7) is disposed relatively below the typing punch (12), the typing punch (7) being fixedly attached within the cavity plate (4).

5. The small format fastener self-pretensioning sprung band die of claim 1, characterized in that the press bending die block (6) is disposed relatively below the press bending punch (13), the press bending die block (6) being fixedly attached within the cavity plate (4).

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