Sheet metal part small lug machining die

Abstract

The utility model discloses a machining die for a small lug of a sheet metal part, relates to the technical field of sheet metal part machining, and aims to solve the technical problems that the situation that stress between a lug plate and the sheet metal part is not uniform is easily caused by a current traditional bending mode, the lug plate is inclined, the bending size is further error, and subsequent assembling and installing functions are affected. Comprising symmetrically-arranged supporting structures, a mounting frame is detachably mounted at the tops of the opposite faces of the supporting structures, a bearing plate is detachably mounted in the mounting frame, a hydraulic cylinder is fixedly mounted in the middle of the top of the bearing plate, and a rod piece of the hydraulic cylinder extends out of the bearing plate and is fixedly connected with a pressing plate; upper die assemblies are detachably installed at the bottom of the pressing plate at equal intervals, U-shaped side plates are detachably installed on the two sides of the supporting structure, and bearing plates are detachably installed on the upper end faces of the U-shaped side plates. The lug plate bending device has the advantages that uniform force application in the lug plate bending process is achieved, and the bending effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal part processing, and more specifically, to a processing die for small ears of sheet metal parts. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for metal thin plates, including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming (such as automobile bodies), etc. Its remarkable feature is that the thickness of the same part is consistent. The products processed by the sheet metal industry are called sheet metal parts.

[0003] At present, during the processing of sheet metal parts, in order to facilitate subsequent installation and assembly work, ear plates are usually reserved at the side edge parts. By opening holes in the ear plates, the installation and use of sheet metal parts are facilitated. For different installation surfaces of sheet metal parts, a bending machine is usually required to bend the ear plates. The traditional bending method is to manually hold the sheet metal part in the bending machine and apply pressure to the ear plate through the bending tool head to force it to bend. However, since the ear plate is generally smaller in volume compared to the sheet metal part, this leads to uneven stress between the ear plate and the sheet metal part when using the traditional bending method, resulting in the inclination of the ear plate, and further causing errors in the bending dimensions, affecting the subsequent assembly and installation functions. In view of this, we propose a processing die for small ears of sheet metal parts. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a processing die for small ears of sheet metal parts to solve the technical problem that the current traditional bending method is prone to uneven stress between the ear plate and the sheet metal part, resulting in the inclination of the ear plate, and further causing errors in the bending dimensions, affecting the subsequent assembly and installation functions.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A processing die for small ears of sheet metal parts includes symmetrically arranged support structures;

[0006] On the top of the opposite sides of the support structure, a mounting frame is detachably installed. Inside the mounting frame, a supporting plate is detachably installed. In the middle of the top of the supporting plate, a hydraulic cylinder is fixedly installed. The rod of the hydraulic cylinder extends out of the supporting plate and is fixedly connected to a pressing plate. At equal intervals on the bottom of the pressing plate, an upper die assembly is detachably installed;

[0007] On both sides of the support structure, U-shaped side plates are detachably installed. On the upper end surface of the U-shaped side plates, a bearing plate is detachably installed. At a position corresponding to the upper die assembly on the top of the bearing plate, a lower die assembly is detachably installed, and a sheet metal part body is detachably placed on the bearing plate. An ear plate is formed on the side of the sheet metal part body;

[0008] The lower die assembly includes a lower die body with a bending groove formed at the top; the upper die assembly includes an upper die body with a bending knife arranged at the bottom, and the bending knife movably presses against the bending ear plate.

[0009] In the utility model, by designing the upper die assembly and the lower die assembly, when bending the ear plate in the sheet metal part body, by starting the hydraulic cylinder, the rod of the hydraulic cylinder extends to push the pressing plate downward, so that the upper die body moves toward the lower die body, thereby making the urethane rubber abut against the ear plate and apply pressure, so that the ear plate is bent along the edge of the bending groove until one side of it fits against the inner wall of the bending groove. The bending die is beneficial to realizing uniform force application during the bending process of the ear plate, avoiding the inclination of the ear plate during the bending process, thereby improving the bending effect.

[0010] Preferably, a positioning baffle is formed on one side of the bottom wall of the bending groove, and a positioning plate is formed on one side of the bottom of the upper die body, and the positioning plate is movably attached to the positioning baffle.

[0011] Preferably, a storage groove is formed inside the upper die body, a spring is fixedly arranged inside the storage groove, the bottom end of the spring is fixedly connected with a urethane rubber, and the urethane rubber movably presses against and fixes the sheet metal part body.

[0012] Preferably, an installation groove is formed at the top of the bearing plate, and the lower die body is detachably installed in the installation groove.

[0013] Preferably, the support structure includes a chassis with a support frame detachably installed on one side, a connecting frame is symmetrically and detachably installed between the opposite surfaces of the chassis in the symmetrically arranged support structures, and the U-shaped side plate is detachably connected to the support frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, by designing the upper die assembly and the lower die assembly, when bending the ear plate in the sheet metal part body, by starting the hydraulic cylinder, the rod of the hydraulic cylinder extends to push the pressing plate downward, so that the upper die body moves toward the lower die body, thereby making the urethane rubber abut against the ear plate and apply pressure, so that the ear plate is bent along the edge of the bending groove until one side of it fits against the inner wall of the bending groove. The bending die is beneficial to realizing uniform force application during the bending process of the ear plate, avoiding the inclination of the ear plate during the bending process, thereby improving the bending effect, ensuring the subsequent assembly and installation functions, and solving the problem that the traditional bending method is prone to uneven force between the ear plate and the sheet metal part, resulting in the inclination of the ear plate, and further resulting in errors in the bending dimensions, affecting the subsequent assembly and installation functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the utility model;

[0017] Figure 2 For the present utility model Figure 1 is a schematic structural view of the sheet metal part body in a disassembled state;

[0018] Figure 3 is a schematic view of the state of the upper die assembly and the lower die assembly of the present utility model before bending the sheet metal part body;

[0019] Figure 4 is a schematic view of the state of the upper die assembly and the lower die assembly of the present utility model after bending the sheet metal part body;

[0020] Figure 5 For the present utility model Figure 1 is an enlarged schematic view of the structure at position A.

[0021] Description of the reference numerals in the figure:

[0022] 1. Connecting frame; 2. Bottom frame; 3. Support frame; 4. Mounting frame; 5. Hydraulic cylinder; 6. Pressure plate; 7. U-shaped side plate; 8. Bearing plate; 9. Installation groove; 10. Sheet metal part body; 11. Ear plate; 12. Upper die assembly; 1201. Upper die body; 1202. Positioning plate; 1203. Bending knife; 1204. Storage groove; 1205. Spring; 1206. Urethane rubber; 13. Lower die assembly; 1301. Lower die body; 1302. Bending groove; 1303. Positioning baffle. Specific embodiments

[0023] As Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, a processing die for small ears of a sheet metal part according to the present utility model includes symmetrically arranged support structures. A mounting frame 4 is detachably installed at the top of the opposite sides of the support structures. A bearing plate is detachably installed inside the mounting frame 4. A hydraulic cylinder 5 is fixedly installed at the center of the top of the bearing plate. The rod of the hydraulic cylinder 5 extends out of the bearing plate and is fixedly connected to a pressure plate 6. Upper die assemblies 12 are detachably installed at equal intervals at the bottom of the pressure plate 6. U-shaped side plates 7 are detachably installed on both sides of the support structures. A bearing plate 8 is detachably installed on the upper end surface of the U-shaped side plate 7. A lower die assembly 13 is detachably installed at a position corresponding to the upper die assembly 12 on the top of the bearing plate 8. And a sheet metal part body 10 is detachably placed on the bearing plate 8. An ear plate 11 is formed on the side of the sheet metal part body 10. The lower die assembly 13 includes a lower die body 1301 with a bending groove 1302 formed at the top; the upper die assembly 12 includes an upper die body 1201 with a bending knife 1203 arranged at the bottom, and the bending knife 1203 actively presses and bends the ear plate 11.

[0024] In an embodiment of the present utility model, as Figure 2 andFigure 3 As shown in the figure, a positioning baffle 1303 is formed on one side of the bottom wall of the bending groove 1302, and a positioning plate 1202 is formed on one side of the bottom of the upper die body 1201. The positioning plate 1202 is in movable contact with the positioning baffle 1303. A receiving groove 1204 is formed inside the upper die body 1201. A spring 1205 is fixedly arranged inside the receiving groove 1204. The bottom end of the spring 1205 is fixedly connected with a urethane rubber 1206. The urethane rubber 1206 is in movable extrusion and fixes the sheet metal part body 10. An installation groove 9 is formed on the top of the bearing plate 8. The lower die body 1301 is detachably installed in the installation groove 9.

[0025] In an embodiment of the present utility model, as Figure 1 shown, the support structure includes a chassis 2 with a support frame 3 detachably installed on one side. A connecting frame 1 is symmetrically and detachably installed between the facing surfaces of the chassis 2 in the symmetrically arranged support structures. The U-shaped side plate 7 is detachably connected to the support frame 3.

[0026] Working principle: This embodiment provides a processing die for the small ears of a sheet metal part. When in use, first, manually hold the sheet metal part body 10 and place the ear plate 11 on the lower die body 1301, and manually align the bending position of the ear plate 11 with the bending groove 1302. Then, by starting the hydraulic cylinder 5, the rod of the hydraulic cylinder 5 extends to push the pressing plate 6 downward, so that the upper die body 1201 moves toward the lower die body 1301, and the urethane rubber 1206 abuts against the surface of the sheet metal part body 10 and retracts into the receiving groove 1204 under the influence of the reaction force, so that the spring 1205 is compressed. The elastic force of the spring 1205 makes the urethane rubber 1206 tightly press the surface of the sheet metal part body 10 to realize the positioning of the sheet metal part body 10. As the upper die body 1201 continues to move downward, the urethane rubber 1206 abuts against the ear plate 11 and applies pressure, so that the ear plate 11 is bent along the edge of the bending groove 1302 until one side of it fits against the inner wall of the bending groove 1302, realizing the bending work of the ear plate 11.

[0027] The embodiments disclosed in the embodiments of the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model according to the above embodiments and make different extensions and changes, but as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A processing die for small ears of sheet metal parts, characterized in that It includes a support structure arranged symmetrically; On the top of the opposite sides of the support structure, a mounting frame (4) is detachably installed. Inside the mounting frame (4), a supporting plate is detachably installed. In the middle of the top of the supporting plate, a hydraulic cylinder (5) is fixedly installed. The rod of the hydraulic cylinder (5) extends out of the supporting plate and is fixedly connected to a pressing plate (6). On the bottom of the pressing plate (6), upper die assemblies (12) are detachably installed at equal intervals; On both sides of the support structure, U-shaped side plates (7) are detachably installed. On the upper end surface of the U-shaped side plates (7), a bearing plate (8) is detachably installed. At the position corresponding to the upper die assemblies (12) on the top of the bearing plate (8), a lower die assembly (13) is detachably installed. And on the bearing plate (8), a sheet metal part body (10) is detachably placed. On the side of the sheet metal part body (10), an ear plate (11) is formed; The lower die assembly (13) includes a lower die body (1301) with a bending groove (1302) formed on the top; the upper die assembly (12) includes an upper die body (1201) with a bending knife (1203) arranged at the bottom. The bending knife (1203) squeezes the bending ear plate (11) actively.

2. The processing die for small ears of sheet metal parts according to claim 1, characterized in that, On one side of the bottom wall of the bending groove (1302), a positioning baffle (1303) is formed. On one side of the bottom of the upper die body (1201), a positioning plate (1202) is formed. The positioning plate (1202) is actively attached to the positioning baffle (1303).

3. The processing die for the small ear of the sheet metal part according to claim 1, wherein, Inside the upper die body (1201), a storage groove (1204) is formed. Inside the storage groove (1204), a spring (1205) is fixedly arranged. The bottom end of the spring (1205) is fixedly connected to a urethane rubber (1206). The urethane rubber (1206) squeezes the sheet metal part body (10) actively and fixedly.

4. A processing die for small ears of sheet metal parts according to claim 1, characterized in that, On the top of the bearing plate (8), an installation groove (9) is formed. The lower die body (1301) is detachably installed in the installation groove (9).

5. A processing die for small ears of sheet metal parts according to claim 1, characterized in that, The support structure includes a chassis (2) with a support frame (3) detachably installed on one side. Between the opposite surfaces of the chassis (2) in the symmetrically arranged support structures, a connecting frame (1) is symmetrically and detachably installed. The U-shaped side plates (7) are detachably connected to the support frame (3).

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