Metal bending mechanism and double-end bending device applying same

Abstract

The utility model relates to a metal bending mechanism which comprises a first base, a limiting pin shaft is arranged on the first base, and a pressing mechanism matched with the limiting pin shaft to work is arranged on one side of the limiting pin shaft. The pressing mechanism comprises a sliding block capable of doing reciprocating motion, the end, facing the limiting pin shaft, of the sliding block is connected with a bending head, and the end, facing the limiting pin shaft, of the bending head is provided with an arc-shaped concave face matched with the circumferential face of the limiting pin shaft to work. The utility model further relates to a double-end bending device applying the metal bending mechanism. The metal bending machine is simple in structure, small in size, convenient to store, convenient and labor-saving when used for bending metal, and high in efficiency; the bending mechanism can be used independently and can also be used in combination with an auxiliary bending mechanism, and flexibility is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal ornament processing technical field, especially a kind of metal bending mechanism and the double-end bending device of application thereof. BACKGROUND

[0002] In the processing of metal jewelry, metal sheet or metal strip is often bent, and straight metal is bent into a circle. Currently, there is a lack of special tools for bending jewelry metal on the market, and it is usually completed by a round rod in combination with manual knocking. The bending effect is not good, the bending part is not smooth enough, and repeated adjustment is needed, which is low in efficiency. UTILITY MODEL CONTENT

[0003] Therefore, the utility model aims to provide a metal bending mechanism and a double-end bending device using the same, which is simple in structure, convenient and labor-saving for metal bending, high in efficiency and good in bending effect.

[0004] The utility model adopts the following scheme: a metal bending mechanism, comprising a first base, a limiting pin shaft is arranged on the first base, a pressing mechanism cooperating with the limiting pin shaft is arranged on one side of the limiting pin shaft; the pressing mechanism comprises a sliding block capable of reciprocating, a bending head is connected to one end of the sliding block facing the limiting pin shaft, and an arc-shaped concave surface cooperating with the circumferential surface of the limiting pin shaft is arranged on one end of the bending head facing the limiting pin shaft.

[0005] Further, a sliding groove is arranged on the first base and cooperates with the sliding block, the bending head of the sliding block extends out of the sliding groove, and a cam is rotatably connected to the first base and pushes the sliding block towards the limiting pin shaft by rotating.

[0006] Further, a tension spring is arranged in the sliding groove to pull the sliding block away from the limiting pin shaft.

[0007] Further, a cam shaft is fixedly connected to the upper side of the cam and rotates with the first base, and a handle is connected to the cam shaft.

[0008] Further, a T-shaped connecting groove is formed in the end of the sliding block to connect the bending head, and a T-shaped connecting part is arranged on the bending head to cooperate with the T-shaped connecting groove.

[0009] Further, an installation groove hole is formed in the first base to insert the limiting pin shaft.

[0010] The utility model discloses another technical scheme: a double-end bending device applying the metal bending mechanism, including the metal bending mechanism and auxiliary bending mechanism, the auxiliary bending mechanism includes the second base that can splice together with the first base of metal bending mechanism, the second base also is equipped with the pressing mechanism that cooperates with the limiting pin shaft work, and the pressing mechanism of metal bending mechanism and the pressing mechanism of auxiliary bending mechanism are located the both sides of limiting pin shaft respectively.

[0011] Further, the first base splicing end both sides are equipped with the positioning notch, and the splicing end of second base is equipped with the positioning lug that cooperates with the positioning notch.

[0012] Further, the positioning lug end face of one side of second base is equipped with the positioning slot hole, and the positioning notch of the corresponding side of first base and positioning slot hole is equipped with the positioning convex axle that cooperates with the positioning slot hole.

[0013] Further, the positioning lug on the other side of second base is equipped with the screw hole that passes through both sides, and the locking screw that is used to tightly press the side of positioning notch is connected in the screw hole.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model discloses metal bending machine simple structure, small, and it is convenient to store and deposit, is used to metal bending and is convenient and laborsaving, and the efficiency is high, and the bending effect is good, and the bending part is even, can be used alone, also can be combined and used with auxiliary bending mechanism, and the flexibility is good.

[0015] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following will be through concrete embodiment and relevant drawing, and make further detailed description to the utility model. DRAWINGS

[0016] Figure 1 It is the utility model embodiment metal bending mechanism plan view;

[0017] Figure 2 It is the utility model embodiment pressing mechanism section view;

[0018] Figure 3 It is the utility model embodiment auxiliary bending mechanism plan view;

[0019] Figure 4 It is the utility model embodiment double-end bending device plan view;

[0020] The following are the labels in the diagram: 100-Metal bending mechanism, 110-First base, 120-Limit pin, 130-Mounting slot, 140-Positioning slot, 150-Positioning convex shaft, 200-Pressure mechanism, 210-Slider, 211-T-shaped connecting groove, 220-Bending head, 221-T-shaped connecting part, 230-Slide groove, 240-Cam, 250-Tension spring, 260-Handle, 300-Auxiliary bending mechanism, 310-Second base, 320-Positioning protrusion, 321-Positioning slot, 330-Locking screw, 400-Metal sheet or metal strip. Detailed Implementation

[0021] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] like Figures 1-2 As shown, a metal bending mechanism 100 includes a first base 110 with a limiting pin 120 on it. A clamping mechanism 200, cooperating with the limiting pin, is located on one side of the limiting pin. The clamping mechanism 200 includes a reciprocating slider 210. A bending head 220 is connected to the end of the slider facing the limiting pin, and the end of the bending head facing the limiting pin has an arc-shaped concave surface that cooperates with the circumferential surface of the limiting pin. The metal sheet or strip to be bent is placed between the bending head and the limiting pin. The slider is then moved to bring the bending head closer to the limiting pin, clamping and bending the metal. After bending, the slider returns to its original position. This metal bending mechanism has a simple structure, small size, and is easy to store. It is convenient, labor-saving, and efficient for bending metal sheets or strips; moreover, it produces a good bending effect with a smooth bent portion.

[0024] In this embodiment, the first base 110 is provided with a slide groove 230 that slides with the slider. The slide groove has a U-shaped cross-section. The end of the slider with the bent head extends out of the slide groove. The first base is rotatably connected to a cam 240 located in the slide groove and which pushes the slider toward the limiting pin by rotation.

[0025] In the embodiment, the sliding slot is provided with a pulling spring 250 for pulling the sliding block away from the direction of the limiting pin shaft. Under the pulling force of the pulling spring, the inner end of the sliding block can always be attached to the cam, and the reciprocating movement of the sliding block is realized through the cooperation of the cam and the pulling spring.

[0026] In the embodiment, in order to make the rotation of the cam more labor-saving, the upper side of the cam is fixedly connected with a cam shaft which is rotationally connected with the first base, and the cam shaft is connected with a handle 260.

[0027] In the embodiment, in order to realize the quick disassembly and assembly of the bending head, the end of the sliding block 210 is provided with a T-shaped connecting groove 211 for connecting the bending head, and the bending head 220 is provided with a T-shaped connecting part 221 which is matched with the T-shaped connecting groove. The installation of the bending head is completed by directly clamping the T-shaped connecting part into the T-shaped connecting groove, and different specifications of the bending head are selected according to the bending radius of the metal sheet or metal strip.

[0028] In the embodiment, the first base is provided with a mounting slot hole 130 for inserting the limiting pin shaft. The limiting pin shaft is in a stepped shaft structure, the lower part is matched with the mounting slot hole, and the upper part is matched with the bending head for work. Different specifications (different diameters of the upper part) of the limiting pin shaft are selected according to the bending radius of the metal sheet or metal strip.

[0029] As shown in Figures 3-4 A double-head bending device applying the metal bending mechanism is shown in the drawings, which comprises the metal bending mechanism 100 and an auxiliary bending mechanism 300. The auxiliary bending mechanism 300 comprises a second base 310 which can be spliced with the first base of the metal bending mechanism, and the second base is also provided with a pressing mechanism 200 which is matched with the limiting pin shaft for work. The pressing mechanisms of the metal bending mechanism and the auxiliary bending mechanism are respectively located on both sides of the limiting pin shaft. The double-head bending device composed of the metal bending mechanism and the auxiliary bending mechanism can simultaneously bend both ends of the metal sheet or metal strip. The metal bending mechanism can be used alone or in combination with the auxiliary bending mechanism, and the flexibility is good.

[0030] The pressing mechanism of the auxiliary bending mechanism is the same as the pressing mechanism of the metal bending mechanism, that is, the auxiliary bending mechanism is also provided with the sliding block, the T-shaped connecting groove, the bending head, the T-shaped connecting part, the sliding slot, the cam, the pulling spring and the handle.

[0031] In the embodiment, in order to ensure that the first base and the second base can be accurately spliced, avoid lateral deviation, and ensure that the bending heads on both sides are left-right symmetrical, the splicing end of the first base is provided with positioning notches 140 on both sides, and the splicing end of the second base is connected with positioning protrusions 320 which are matched with the positioning notches.

[0032] In the embodiment, the positioning protrusion 320 of one side of the second base is provided with a positioning slot hole 321 at the end face, and the first base is provided with a positioning protruding shaft 150 matched with the positioning slot hole at the corresponding side of the positioning slot hole 140.

[0033] In the embodiment, the positioning protrusion of the other side of the second base is provided with a threaded hole penetrating through both sides, and a locking screw 330 is connected in the threaded hole to tightly press the side surface of the positioning slot hole; after the first base and the second base are spliced, the locking screw 330 is used for locking.

[0034] Unless otherwise stated, if the numerical range is disclosed in the above-mentioned any technical solution of the utility model, the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that the preferred numerical range is only one of the many implementable values with more obvious technical effects or representative values. Because there are too many values, it is impossible to enumerate, therefore, the utility model discloses only part of the values to illustrate the technical solutions of the utility model, and the above-mentioned enumerated values should not constitute a limitation on the protection scope of the utility model.

[0035] If the utility model discloses or involves mutually fixed connecting parts or structural members, unless otherwise stated, the fixed connection can be understood as: detachable fixed connection (for example, bolt or screw connection), and can also be understood as: non-detachable fixed connection (for example, riveting, welding), of course, the mutually fixed connection can also be replaced by an integral structure (for example, integrally formed by using casting process) (except for obvious cases that cannot use integral forming process).

[0036] In addition, the terms used to represent the position relationship or shape in any technical solution disclosed in the above-mentioned utility model include the approximate, similar or close state or shape, unless otherwise stated.

[0037] Any component provided by the utility model can be assembled by a plurality of individual components, or can be an individual component manufactured by an integral forming process.

[0038] The above-mentioned is only a preferred embodiment of the utility model, and is not limited to other forms of the utility model, and any person skilled in the art can change or modify the above-mentioned disclosed technical content into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above-mentioned embodiments without departing from the technical solution content of the utility model, according to the technical essence of the utility model, still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A metal bending mechanism, characterized by: The utility model provides a metal bending mechanism, including first base, be equipped with the limit pin shaft on first base, one side of limit pin shaft is equipped with the compression mechanism of cooperation work with limit pin shaft, the compression mechanism includes reciprocating slider, the slider one end is connected with the elbow of bending towards limit pin shaft, the elbow one end towards limit pin shaft is equipped with the arc concave surface of cooperation work with limit pin shaft circumference surface.

2. The metal bending mechanism according to claim 1, characterized in that: The first base is equipped with the sliding slot of cooperation with the slider, the elbow of bending of the slider is located the end of the sliding slot, and the cam that is located in the sliding slot and is pushed to the slider in the direction of limit pin shaft is rotatably connected on the first base.

3. The metal bending mechanism according to claim 2, wherein: The sliding slot is equipped with the tension spring for pulling the slider in the direction away from the limit pin shaft.

4. The metal bending mechanism according to claim 2, wherein: The cam upper side is fixedly connected with the cam shaft of cooperation with the first base, and the handle is connected on the cam shaft.

5. The metal bending mechanism according to claim 1, wherein: The slider end is provided with the T-shaped connecting groove for connecting the elbow of bending, and the elbow of bending is provided with the T-shaped connecting part matched with the T-shaped connecting groove.

6. The metal bending mechanism according to claim 1, wherein: The first base is provided with the installation groove hole for inserting the limit pin shaft.

7. A double bending device using the metal bending mechanism according to claim 1, characterized in that: The utility model provides a metal bending mechanism, including first base, be equipped with the limit pin shaft on first base, one side of limit pin shaft is equipped with the compression mechanism of cooperation work with limit pin shaft, the compression mechanism includes reciprocating slider, the slider one end is connected with the elbow of bending towards limit pin shaft, the elbow one end towards limit pin shaft is equipped with the arc concave surface of cooperation work with limit pin shaft circumference surface.

8. The double-end bending device of claim 7, wherein: The first base is equipped with the sliding slot of cooperation with the slider, the elbow of bending of the slider is located the end of the sliding slot, and the cam that is located in the sliding slot and is pushed to the slider in the direction of limit pin shaft is rotatably connected on the first base.

9. The double-end bending device of claim 8, wherein: The sliding slot is equipped with the tension spring for pulling the slider in the direction away from the limit pin shaft.

10. The double-end bending device of claim 9, wherein: The cam upper side is fixedly connected with the cam shaft of cooperation with the first base, and the handle is connected on the cam shaft. The slider end is provided with the T-shaped connecting groove for connecting the elbow of bending, and the elbow of bending is provided with the T-shaped connecting part matched with the T-shaped connecting groove. The first base is provided with the installation groove hole for inserting the limit pin shaft. The utility model provides a metal bending mechanism, including first base, be equipped with the limit pin shaft on first base, one side of limit pin shaft is equipped with the compression mechanism of cooperation work with limit pin shaft, the compression mechanism includes reciprocating slider, the slider one end is connected with the elbow of bending towards limit pin shaft, the elbow one end towards limit pin shaft is equipped with the arc concave surface of cooperation work with limit pin shaft circumference surface. The first base is equipped with the sliding slot of cooperation with the slider, the elbow of bending of the slider is located the end of the sliding slot, and the cam that is located in the sliding slot and is pushed to the slider in the direction of limit pin shaft is rotatably connected on the first base. The sliding slot is equipped with the tension spring for pulling the slider in the direction away from the limit pin shaft. The cam upper side is fixedly connected with the cam shaft of cooperation with the first base, and the handle is connected on the cam shaft. The slider end is provided with the T-shaped connecting groove for connecting the elbow of bending, and the elbow of bending is provided with the T-shaped connecting part matched with the T-shaped connecting groove. The first base is provided with the installation groove hole for inserting the limit pin shaft.

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