Bending device for metal fittings of electrical appliances

Abstract

The utility model discloses a kind of electric appliance metal fittings bending device, including body mechanism and bending auxiliary mechanism, the body mechanism includes mounting disc, rotating head, bending piece and installation component, the rotating head is rotatably connected in the both sides of mounting disc, the mounting disc and rotating head coaxially are arranged, the bending piece is installed on rotating head, the installation component is set between rotating head and bending piece;The bending auxiliary mechanism includes multiple U-shaped clamping plates fixed on the both sides wall of mounting disc, also includes second mounting plate, wedge limiting block and adjusting component.The utility model fixes workpiece in U-shaped clamping plate by the inclined surface of wedge limiting block, avoids the warping deformation when workpiece bending;Bending piece is detachably installed on rotating head, so that bending piece can be replaced according to the length of workpiece, so that the device can be bent to the workpiece of different length;Workpiece bending is limited bending angle by positioning plate, improve the precision of workpiece bending.

Description

Technical Field

[0001] This utility model belongs to the field of metal parts processing technology, and specifically relates to a bending device for electrical metal parts. Background Technology

[0002] Electrical metal parts play a crucial role in electrical equipment, providing structural support, circuit connections, and safety protection. They require bending devices during the bending process.

[0003] A bending device for metal fittings disclosed in CN221362084U includes a cylinder with a rotatable bending component positioned at the center of two discs on the cylinder. A dual-head motor for driving the bending component is located inside the cylinder, and at least one fixing component is circumferentially arranged on the two discs. A threaded hole is provided on one side of a U-shaped groove, and a screw is installed within the threaded hole. A limiting plate is fixedly connected to the tail of the screw, and a metal fitting is placed on the side of the limiting plate away from the screw. This bending device for metal fittings, by using a threaded hole in the fixing component on one side of the U-shaped groove, combined with a screw and a limiting plate, places the metal fitting in the U-shaped groove and then tightens the limiting plate to firmly secure the metal fitting, thereby preventing wobbling and errors during bending.

[0004] However, when the bending device provided by the above patent is used, the workpiece is fixed by screws. The workpiece is only pressed by a single point by the screws. Thin electrical components are prone to warping and deformation during bending. Since the distance between the clamping plate and the bending part is fixed, it is impossible to bend workpieces of different lengths. At the same time, the angle of the workpiece after bending lacks a limit, which affects the bending accuracy.

[0005] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a bending device for electrical metal parts.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this utility model is to provide a bending device for electrical metal parts, which can solve the problems of warping and deformation of workpieces when bending due to single-point fixing of workpieces, the inability to bend workpieces of different lengths due to fixed spacing between clamping plate and bending part, and the problem of bending accuracy being affected by lack of limiting bending angle.

[0008] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0009] An electrical metal fitting bending device includes a main body mechanism and a bending auxiliary mechanism. The main body mechanism includes a mounting plate, a rotating head, a bending component, and a mounting assembly. The rotating head is rotatably connected to both sides of the mounting plate, and the mounting plate and the rotating head are coaxially arranged. The bending component is mounted on the rotating head, and the mounting assembly is disposed between the rotating head and the bending component. The bending auxiliary mechanism includes multiple U-shaped clamps fixed to the side walls of the mounting plate. The multiple U-shaped clamps are arranged in a ring around the central axis of the mounting plate on the side walls of the mounting plate. It also includes a second mounting plate, a wedge-shaped limiting block, and an adjusting assembly. The second mounting plate is mounted on the side wall of one transverse wall of the U-shaped clamp near the end of the bending component. The extending assembly is mounted between the second mounting plate and the U-shaped clamp. The wedge-shaped limiting block is mounted on the side wall of another transverse wall of the U-shaped clamp away from the mounting plate. The adjusting assembly is mounted between the wedge-shaped limiting block and the U-shaped clamp.

[0010] In one or more embodiments of the present invention, the mounting assembly includes a sliding plate, a mounting groove and a limiting screw. The sliding plate is integrally formed on one end of the bent part, and a limiting screw hole is formed on the side wall of the sliding plate away from the bent part.

[0011] In one or more embodiments of this utility model, the mounting groove is formed on the rotating head, and the sliding plate is slidably connected in the mounting groove.

[0012] In one or more embodiments of this utility model, the limiting screw is threaded to the rotating head in a through manner, and one end of the limiting screw placed inside the rotating head is threaded to the limiting screw hole.

[0013] In one or more embodiments of this utility model, the side of the wedge-shaped limiting block facing the transverse wall panel on which the second mounting plate is installed in the U-shaped clamp is set as an inclined surface, and the angle of the inclined surface on the wedge-shaped limiting block is set to 45~55 degrees.

[0014] In one or more embodiments of the present invention, the adjusting assembly includes a first mounting plate, an adjusting screw hole, a clamping screw, and a pair of limiting rods. The first mounting plate is fixed on the non-inclined surface of the wedge-shaped limiting block, and the adjusting screw hole is opened on the transverse wall of the U-shaped clamp.

[0015] In one or more embodiments of this utility model, the clamping screw is slidably connected to the first mounting plate in a through manner, and the front end of the clamping screw is threadedly connected to the adjusting screw hole.

[0016] In one or more embodiments of this utility model, a pair of limiting rods are slidably connected to a first mounting plate in a through manner, and one end of the first mounting plate is fixed to the side wall of the transverse wall panel of the U-shaped clamp.

[0017] In one or more embodiments of the present invention, the extension assembly includes an extension plate, an extension groove, a pair of limiting plates and a pair of limiting grooves. The extension groove is formed in the transverse wall of the U-shaped clamp plate, the pair of limiting grooves are formed on both sides of the extension groove, the pair of limiting plates are fixed on both sides of the extension plate, the extension plate is slidably connected in the extension groove, and the pair of limiting plates are respectively slidably connected in the pair of limiting grooves.

[0018] In one or more embodiments of the present invention, the extension assembly further includes a positioning plate, a second mounting plate, and an adjusting screw. The positioning plate is fixed to the bottom of a pair of limiting plates, the second mounting plate is fixed to the bottom of the transverse wall panel of the U-shaped clamp, and the adjusting screw is threaded to the second mounting plate in a through manner. The front end of the adjusting screw is rotatably connected to the positioning plate.

[0019] Compared with the prior art, this utility model fixes the workpiece in the U-shaped clamping plate by the inclined surface of the wedge-shaped limiting block, avoiding warping deformation of the workpiece during bending; the bending part is installed on the rotating head in a detachable manner, so that the bending part can be replaced according to the length of the workpiece, so that the device can bend workpieces of different lengths; the bending angle is limited by the positioning plate when the workpiece is bent, which improves the bending accuracy of the workpiece. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view of an electrical metal fitting bending device according to an embodiment of the present invention;

[0022] Figure 2 This is a perspective view of an electrical metal fitting bending device according to an embodiment of the present invention;

[0023] Figure 3 This is an exploded view of an electrical metal fitting bending device according to an embodiment of the present invention;

[0024] Figure 4 This utility model Figure 3 Schematic diagram of stroke site A;

[0025] Figure 5 Explosion of the bending auxiliary mechanism in this utility model Figure 1 ;

[0026] Figure 6Explosion of the bending auxiliary mechanism in this utility model Figure 2 ;

[0027] Figure 7 This is a cross-sectional view of the connection between the U-shaped clamping plate and the clamping screw in this utility model.

[0028] Explanation of key figure labels:

[0029] 1-Main body mechanism, 11-Mounting plate, 12-Rotating head, 13-Bending part, 14-Sliding plate, 15-Limiting screw hole, 16-Mounting groove, 17-Limiting screw, 2-Bending auxiliary mechanism, 21-U-shaped clamping plate, 22-Wedge-shaped limiting block, 23-First mounting plate, 24-Adjusting screw hole, 25-Clamping screw, 26-Limiting rod, 27-Extension plate, 28-Extension groove, 29-Limiting plate, 210-Limiting groove, 211-Positioning plate, 212-Second mounting plate, 213-Adjusting screw. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0031] like Figures 1-7 As shown, an embodiment of the present invention provides a bending device for electrical metal accessories, comprising a main body mechanism 1 and a bending auxiliary mechanism 2. The main body mechanism 1 includes a mounting plate 11, with rotating heads 12 rotatably connected to both sides of the mounting plate 11. The mounting plate 11 and the rotating heads 12 are coaxially arranged, and a bending component 13 is mounted on the rotating head 12. An installation assembly is provided between the rotating head 12 and the bending component 13. The bending auxiliary mechanism 2 includes multiple U-shaped clamps 21 fixed on the two side walls of the mounting plate 11. The multiple U-shaped clamps 21 are arranged in a ring around the central axis of the mounting plate 11 on the two side walls of the mounting plate 11. A second mounting plate 212 is installed on the side wall of one transverse wall of the U-shaped clamp 21 near the end of the bending member 13. An extension component is installed between the second mounting plate 212 and the U-shaped clamp 21. A wedge-shaped limiting block 22 is installed on the side wall of the other transverse wall of the U-shaped clamp 21 away from the mounting plate 11. An adjustment component is installed between the wedge-shaped limiting block 22 and the U-shaped clamp 21.

[0032] When using this electrical appliance metal fitting bending device, a bending part 13 of appropriate length is selected according to the length of the electrical appliance metal fitting that needs to be bent. The bending part 13 is fixed on the rotating head 12 by the mounting assembly so that the rotating head 12 can drive the bending part 13 to rotate. Electrical metal parts that are adapted to the length of the bent part 13 and require right-angle bending are sequentially fixed inside the U-shaped clamp 21. During fixing, the workpiece is placed inside the U-shaped clamp 21, and the wedge-shaped limiting block 22 is driven to move into the U-shaped clamp 21 by the adjusting component. The inclined surface of the wedge-shaped limiting block 22 clamps and fixes the workpiece placed inside the U-shaped clamp 21, which increases the contact range when fixing the workpiece, improves the stability of fixing the workpiece, and avoids warping deformation of the workpiece during bending. At the same time, when the length of the workpiece is long, so that the length of the workpiece exposed outside the U-shaped clamp 21 is greater than the length to be bent, the positioning plate 211 is extended outward by the extension component so that the positioning plate 211 extends to the bending position of the workpiece. Thus, by extending the positioning plate 211, the U-shaped clamp 21 can clamp and bend workpieces of different lengths, which improves the practicality of the device. When the dual-headed electrode drives the rotating head 12 to rotate, the rotating head 12 can drive the bending part 13 to rotate. When the bending part 13 contacts the workpiece, it can bend the workpiece. After the workpiece is bent at 90 degrees, it will abut against the side wall of the positioning plate 211. The positioning plate 211 restricts the bending angle of the workpiece, ensuring the precise right-angle bending of the workpiece and effectively improving the bending accuracy of the workpiece.

[0033] like Figure 3 and Figure 4 As shown, the mounting assembly includes a sliding plate 14, a mounting groove 16, and a limiting screw 17. The sliding plate 14 is integrally formed on one end of the bent part 13, and a limiting screw hole 15 is provided on the side wall of the sliding plate 14 away from the bent part 13.

[0034] like Figure 3 and Figure 4 As shown, the mounting groove 16 is formed on the rotating head 12, and the sliding plate 14 is slidably connected in the mounting groove 16. Through the cooperation of the sliding plate 14 and the mounting groove 16, the bent part 13 is easy to install and remove on the rotating head 12, and is stable after installation.

[0035] like Figure 3 and Figure 4 As shown, the limiting screw 17 is threaded through the rotating head 12, and one end of the limiting screw 17, which is located inside the rotating head 12, is threaded into the limiting screw hole 15. When the bent part 13 is installed on the rotating head 12 through the mounting groove 16, the limiting screw 17 threaded onto the rotating head 12 can restrict the sliding of the sliding plate 14 within the mounting groove 16, thereby ensuring that the bent part 13 is stably installed on the rotating head 12 and ensuring stability when the bent part 13 bends the workpiece.

[0036] like Figure 5 As shown, the side of the wedge-shaped limiting block 22 facing the transverse wall panel of the second mounting plate 212 installed on the U-shaped clamping plate 21 is set as an inclined surface. The angle of the inclined surface on the wedge-shaped limiting block 22 is set to 45~55 degrees, so that the workpiece in the U-shaped clamping plate 21 is fixed by the compression of the inclined surface through the wedge-shaped limiting block 22, which improves the stability of the workpiece fixing.

[0037] like Figures 5-7 As shown, the adjustment assembly includes a first mounting plate 23, an adjustment screw hole 24, a clamping screw 25, and a pair of limiting rods 26. The first mounting plate 23 is fixed on the non-inclined surface of the wedge-shaped limiting block 22, and the adjustment screw hole 24 is opened on the transverse wall of the U-shaped clamp 21.

[0038] like Figures 5-7 As shown, the clamping screw 25 is slidably connected to the first mounting plate 23 in a through manner, and the front end of the clamping screw 25 is threaded into the adjusting screw hole 24. By rotating the clamping screw 25 in the adjusting screw hole 24, the first mounting plate 23 can be moved closer to the U-shaped clamping plate 21, and the first mounting plate 23 can then move the wedge-shaped limiting block 22 into the U-shaped clamping plate 21, so that the wedge-shaped limiting block 22 can squeeze and clamp the workpiece.

[0039] like Figures 5-7 As shown, a pair of limiting rods 26 are slidably connected to the first mounting plate 23 in a through manner. One end of the first mounting plate 23 is fixed to the side wall of the transverse wall panel of the U-shaped clamp 21. When the first mounting plate 23 moves, it can slide on the pair of limiting rods 26. The pair of limiting rods 26 guide the movement of the wedge-shaped limiting block 22, ensuring that the wedge-shaped limiting block 22 is evenly stressed on the surface of the workpiece when it is fixed by compression, thereby improving the stability of the workpiece fixation and avoiding warping deformation when the workpiece is bent.

[0040] like Figures 5-7 As shown, the extension assembly includes an extension plate 27, an extension groove 28, a pair of limiting plates 29, and a pair of limiting grooves 210. The extension groove 28 is formed within the transverse wall of the U-shaped clamp 21. The pair of limiting grooves 210 are formed on both sides of the extension groove 28. The pair of limiting plates 29 are fixed to both sides of the extension plate 27. The extension plate 27 is slidably connected within the extension groove 28, and the pair of limiting plates 29 are slidably connected within the pair of limiting grooves 210. The extension plate 27 is slidably connected to the U-shaped clamp 21 via the extension groove 28, so that the length of the U-shaped clamp 21 can be adjusted by sliding the extension plate 27 on the U-shaped clamp 21. At the same time, the sliding of the extension plate 27 is guided and limited by the cooperation of the pair of limiting plates 29 and the extension groove 28.

[0041] like Figures 5-7As shown, the extension assembly also includes a positioning plate 211, a second mounting plate 212, and an adjusting screw 213. The positioning plate 211 is fixed to the bottom of a pair of limiting plates 29, the second mounting plate 212 is fixed to the bottom of the transverse wall of the U-shaped clamp 21, and the adjusting screw 213 is threaded through to the second mounting plate 212. The front end of the adjusting screw 213 is rotatably connected to the positioning plate 211. The extension and retraction of the extension plate 27 causes the positioning plate 211 to move, so that when the U-shaped clamp 21 clamps workpieces of different lengths, by adjusting the positioning plate 211 to the bending point of the workpiece, the U-shaped clamp 21 can perform right-angle bending on different workpieces. During bending, the U-shaped clamp 21 clamps and fixes the workpiece to ensure that no displacement occurs. By limiting the bending part of the workpiece through the positioning plate 211, the workpiece will abut against the positioning plate 211 after right-angle bending and cannot rotate, which improves the bending accuracy of the workpiece and facilitates bending of workpieces of different lengths.

[0042] In use, select a bending piece 13 of appropriate length according to the length of the electrical metal parts that need to be bent, and fix the bending piece 13 on the rotating head 12 through the mounting assembly so that the rotating head 12 can drive the bending piece 13 to rotate. Electrical metal parts that are adapted to the length of the bent part 13 and require right-angle bending are sequentially fixed inside the U-shaped clamp 21. During fixing, the workpiece is placed inside the U-shaped clamp 21, and the clamping screw 25 is rotated to penetrate into the adjusting screw hole 24. The clamping screw 25 drives the wedge-shaped limiting block 22 to move into the U-shaped clamp 21. The inclined surface of the wedge-shaped limiting block 22 clamps and fixes the workpiece placed inside the U-shaped clamp 21, increasing the contact range when fixing the workpiece, improving the stability of the workpiece fixing, and avoiding warping deformation of the workpiece during bending. At the same time, when the length of the workpiece is long, and the length of the workpiece exposed outside the U-shaped clamp 21 is greater than the length to be bent, the positioning plate 211 is extended outward by rotating the adjusting screw 213 so that the positioning plate 211 extends to the bending position of the workpiece. Thus, by extending the positioning plate 211, the U-shaped clamp 21 can clamp and bend workpieces of different lengths, improving the practicality of the device. When the dual-headed electrode drives the rotating head 12 to rotate, the rotating head 12 can drive the bending part 13 to rotate. When the bending part 13 contacts the workpiece, it can bend the workpiece. After the workpiece is bent at 90 degrees, it will abut against the side wall of the positioning plate 211. The positioning plate 211 restricts the bending angle of the workpiece, ensuring the precise right-angle bending of the workpiece and effectively improving the bending accuracy of the workpiece.

[0043] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bending device for electrical metal fittings, characterized in that, include: The main body mechanism includes a mounting plate, a rotating head, a bending component, and a mounting assembly. The rotating head is rotatably connected to both sides of the mounting plate, and the mounting plate and the rotating head are coaxially arranged. The bending component is mounted on the rotating head, and the mounting assembly is disposed between the rotating head and the bending component. A bending auxiliary mechanism includes multiple U-shaped clamps fixed to the side walls of a mounting plate. The multiple U-shaped clamps are arranged in a ring around the central axis of the mounting plate on the side walls of the mounting plate. It also includes a second mounting plate, an extension component, a wedge-shaped limiting block, and an adjustment component. The second mounting plate is mounted on the side wall of one transverse wall of the U-shaped clamps near the end of the bending member. The extension component is mounted between the second mounting plate and the U-shaped clamps. The wedge-shaped limiting block is mounted on the side wall of another transverse wall of the U-shaped clamps away from the mounting plate. The adjustment component is mounted between the wedge-shaped limiting block and the U-shaped clamps.

2. The bending device for electrical metal parts according to claim 1, characterized in that, The mounting assembly includes a sliding plate, a mounting groove, and a limiting screw. The sliding plate is integrally formed on one end of the bent part, and a limiting screw hole is provided on the side wall of the sliding plate away from the bent part.

3. The bending device for electrical metal parts according to claim 2, characterized in that, The mounting groove is formed on the rotating head, and the sliding plate is slidably connected in the mounting groove.

4. The bending device for electrical metal parts according to claim 3, characterized in that, The limiting screw is threaded to the rotating head in a through manner, and one end of the limiting screw placed inside the rotating head is threaded to the limiting screw hole.

5. The bending device for electrical metal fittings according to claim 1, characterized in that, The side of the wedge-shaped limiting block facing the transverse wall panel on which the second mounting plate is installed in the U-shaped clamp is set as an inclined surface, and the angle of the inclined surface on the wedge-shaped limiting block is set to 45 to 55 degrees.

6. The bending device for electrical metal fittings according to claim 1, characterized in that, The adjustment assembly includes a first mounting plate, an adjustment screw hole, a clamping screw, and a pair of limiting rods. The first mounting plate is fixed on the non-inclined surface of the wedge-shaped limiting block, and the adjustment screw hole is opened on the transverse wall of the U-shaped clamp.

7. The bending device for electrical metal fittings according to claim 6, characterized in that, The clamping screw is slidably connected to the first mounting plate in a through manner, and the front end of the clamping screw is threaded into the adjusting screw hole.

8. The bending device for electrical metal fittings according to claim 7, characterized in that, A pair of limiting rods are slidably connected to the first mounting plate in a through manner, and one end of the first mounting plate is fixed to the side wall of the transverse wall panel of the U-shaped clamp.

9. The bending device for electrical metal fittings according to claim 1, characterized in that, The extension assembly includes an extension plate, an extension groove, a pair of limiting plates, and a pair of limiting grooves. The extension groove is opened in the transverse wall panel of the U-shaped clamp, the pair of limiting grooves are opened on both sides of the extension groove, the pair of limiting plates are fixed on both sides of the extension plate, the extension plate is slidably connected in the extension groove, and the pair of limiting plates are slidably connected in the pair of limiting grooves respectively.

10. A bending device for electrical metal fittings according to claim 9, characterized in that, The extension assembly also includes a positioning plate, a second mounting plate, and an adjusting screw. The positioning plate is fixed to the bottom of a pair of limiting plates, the second mounting plate is fixed to the bottom of the transverse wall panel of the U-shaped clamp, and the adjusting screw is threaded to the second mounting plate in a through manner. The front end of the adjusting screw is rotatably connected to the positioning plate.

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