Multipurpose adjustable metal plate bending die and working principle

Abstract

The invention discloses a multipurpose adjustable metal plate bending die and a working principle, and relates to the technical field of bending dies. According to the multi-purpose adjustable metal plate bending die and the working principle, the multi-purpose adjustable metal plate bending die comprises an angle adjusting structure and a pressing plate structure, a base is arranged on the lower side of the angle adjusting structure, a two-way worm is arranged in the base, transverse sliding blocks are arranged on the two sides of the two-way worm, the transverse sliding blocks are connected with a movable base, four guide rods are arranged in the base, and the movable base is connected with the movable base. Four guide sliding sleeves are arranged on the lower side of the movable seat and coaxially connected with guide rods, a connecting seat is connected to the upper side of the movable seat, a connecting plate is arranged on the upper side of the connecting seat and connected with a push rod, the push rod is connected with a rotary supporting plate in a hinged mode, and the rotary supporting plate is connected with a left half template and a right half template. And the left half template and the right half template are connected through a connecting shaft.

Description

Technical Field

[0001] This invention relates to the field of bending die technology, specifically to a multi-purpose adjustable sheet metal bending die and its working principle. Background Technology

[0002] In the field of sheet metal processing, bending dies are key tools for achieving specific bending shapes in sheet metal parts. Traditional sheet metal bending dies are usually designed with fixed angles, meaning that one set of dies can only correspond to one specific bending angle or a few similar angles. When processing sheet metal parts with different bending angles, operators must frequently change dies of different specifications. This not only increases the procurement cost and storage space of dies, but also seriously affects production efficiency and prolongs the production cycle.

[0003] For example, patent number CN 216632122 U discloses a bending die for charging pile sheet metal parts, including a processing table with a clamping mechanism and an adjustable blocking mechanism. A lower die is fixed to the top outer wall of the processing table, and a bending groove is formed on the top of the lower die. An L-shaped plate is fixed to the top outer wall of the processing table, and a hydraulic cylinder is fixed to the top inner outer wall of the L-shaped plate. A bending cutter adapted to the bending groove is fixed to the piston end of the hydraulic cylinder, and multiple charging pile sheet metal parts are placed on the top of the lower die. This invention can simultaneously bend multiple charging pile sheet metal parts, thus improving production efficiency. The clamping mechanism can clamp and fix multiple charging pile sheet metal parts, preventing the front from warping during bending and improving operational safety. The adjustable blocking mechanism can meet diverse production needs, improving the practicality of the bending die.

[0004] For example, patent number CN 215587550 U discloses a quick-adjusting, indentation-free bending die, including a die base and modules. The die base has an inverted T-shaped groove communicating with its upper surface. Two modules are symmetrically arranged along a central axis. The lower part of each module is connected to a locking unit, which includes a slide that matches the shape of the T-shaped groove. The slide is placed inside the T-shaped groove, and a longitudinal bolt runs through the module from top to bottom. The lower part of the longitudinal bolt is threaded to the slide. The module and slide can move along the T-shaped groove. Screws fix baffles at both ends of the T-shaped groove. The lower surface of the module and the upper surface of the die base have a locking structure that cooperates to limit the module's position. The advantages are: using pre-tightened bolts to fix the modules allows for an adjustable fixed connection between the modules and the die base; and the invention includes rollers at the inner corners of the modules, allowing rolling friction to replace static friction during bending, thus preventing indentations on the sheet metal.

[0005] While both patents can achieve sheet metal bending, they still have certain limitations in terms of the flexibility of angle adjustment and the scope of application. The former is mainly for the simultaneous bending of multiple sheet metal parts with fixed positions, and its bending angle still depends on the fixed lower die bending groove design, which cannot achieve continuous adjustment of the bending angle; the latter can adjust the module opening width to adapt to different size requirements and reduce indentation through rollers, but it also does not involve the direct adjustment function of the bending angle, making it difficult to meet the needs of rapid processing of sheet metal parts with different angles. Summary of the Invention

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a multi-purpose adjustable sheet metal bending die and its working principle, which solves the limitations of existing sheet metal bending dies in terms of angle adjustment flexibility and applicability. Specifically, it addresses the problem that existing sheet metal bending dies cannot achieve continuous adjustment of bending angle, making it difficult to meet the needs of rapid processing of sheet metal parts with different angles.

[0007] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a multi-purpose adjustable sheet metal bending die and its working principle, comprising an angle adjustment structure and a pressure plate structure. The lower side of the angle adjustment structure is a base, and a bidirectional worm gear is installed inside the base. Transverse sliders are installed on both sides of the bidirectional worm gear, and the transverse sliders are connected to a movable seat. Four guide rods are installed inside the base, and four guide sleeves are installed below the movable seat. The guide sleeves are coaxially connected to the guide rods. A connecting seat is connected to the upper side of the movable seat, and a connecting plate is installed on the upper side of the connecting seat. A push rod is connected to the connecting plate, and the push rod is hinged to a rotating support plate. Each rotating support plate is connected to a left half template and a right half template. The left half template and the right half template are connected by a connecting shaft. A die pad is installed on the upper side of each of the left and right half templates. An adjustment motor is installed on the left side of the base, and the output shaft of the adjustment motor is connected to the left side of the bidirectional worm gear.

[0008] Preferably, the pressure plate structure is based on a vertical guide frame, the lower side of which is connected to the base, a worm gear bracket is provided on the lower side inside the vertical guide frame, and an adjustable worm gear is provided between the upper side of the worm gear bracket and the upper side inside the vertical guide frame.

[0009] Preferably, the adjusting worm gear is fitted with an adjusting slider, the upper end of the adjusting worm gear is connected to an adjusting motor, and the adjusting slider is connected to a moving frame.

[0010] Preferably, the front side of the movable frame is provided with two directional sliding sleeves, the inside of the directional sliding sleeves is provided with guide columns, the lower end of the guide columns is connected to a tablet pressing frame, the lower side of the tablet pressing frame is connected to a pressure plate, and the pressure plate and the tablet pressing frame are fixed together by a fixing plate.

[0011] Preferably, a push plate is connected to the upper end of the tablet press frame, and a swing rod is provided on the upper side of the push plate. The swing rod and the push plate are connected by a rotating shaft.

[0012] Preferably, a drive shaft is provided on the upper side of the swing arm, the rear half of the drive shaft is connected to the outside of the rotating disk, a pressure plate motor is connected to the rear of the rotating disk, and the rear end of the pressure plate motor is connected to the upper side of the moving frame.

[0013] Preferably, the angle adjustment structure has an angle that can accommodate different sheet metal bending angles.

[0014] The working principle of a multi-purpose adjustable sheet metal bending die, including any of the above-mentioned multi-purpose adjustable sheet metal bending dies, is as follows: Step S1: Based on the target bending angle of the sheet metal part to be processed, the control system starts the adjustment motor, which drives the bidirectional worm gear to rotate inside the base. Since the threads on both sides of the bidirectional worm gear turn in opposite directions, its rotation will drive the horizontal sliders on both sides to move laterally closer or further apart along the guide rod. At this time, the moving seat moves along the guide rod through the lower guide sleeve. The connecting seat on the moving seat drives the connecting plate and the push rod to move. The push rod is connected to the rotating support plate through a hinge, pushing the left half template and the right half template to rotate around the connecting shaft, thereby adjusting the included angle between the left half template and the right half template until the set bending angle is reached. The mold pad provides support and protection for the sheet metal part. Step S2: After the angle adjustment is completed, place the sheet metal part to be bent on the mold pad surface on the left half template and the right half template, and ensure that the bending position is aligned with the connection between the left half template and the right half template. Step S3: Start the pitch adjustment motor. The pitch adjustment motor drives the pitch adjustment worm to rotate under the support of the worm bracket and the vertical guide frame, so that the pitch adjustment slider moves up and down along the pitch adjustment worm, thereby driving the moving frame to adjust to a suitable height to adapt to sheet metal parts of different angles or different bending requirements. Step S4: Start the pressure plate motor to drive the rotating disk to rotate. The rotating disk drives the swing arm to move through the drive shaft. The swing arm pushes the push plate to move downward through the rotating shaft. The push plate drives the pressure plate frame and guide column to descend vertically along the directional sliding sleeve, so that the pressure plate presses the part of the sheet metal to be bent. Under the pressing action of the pressure plate, the sheet metal will be bent and formed along the angle set by the left half template and the right half template in the angle adjustment structure. Step S5: After bending is completed, each component is reset under the drive of the motor, and the processed sheet metal part can be taken out, completing one bending operation.

[0015] (III) Beneficial Effects This invention provides a multi-purpose adjustable sheet metal bending die and its working principle. It has the following beneficial effects: This invention utilizes a coordinated design of a bidirectional worm gear, a transverse slider, a moving seat, a push rod, and a rotating support plate in its angle adjustment structure to drive the left and right half of the template to rotate around a connecting shaft, achieving continuous and precise adjustment of the bending angle. Compared to traditional fixed-angle molds, it can meet various sheet metal bending requirements, from acute to obtuse angles, without frequent mold changes, expanding the mold's applicability and enabling rapid response to diverse production orders. Furthermore, since there is no need to change molds for different bending angles, it eliminates the time spent on mold replacement, installation, and debugging, shortening the production preparation cycle and increasing the number of parts processed per unit time. Simultaneously, it reduces the need to purchase molds of various specifications, lowering mold acquisition and storage costs, and also reducing the manpower and material resources required for mold management.

[0016] This device is based on an improvement of existing equipment, so the improvement cost is relatively low and it will not cause a large amount of existing equipment to be discarded. It ensures the processing effect while reducing the investment in improvement costs, making it suitable for large-scale production. Attached Figure Description

[0017] Figure 1 A schematic diagram of a multi-purpose adjustable sheet metal bending die. Figure 2 Side sectional view of a multi-purpose adjustable sheet metal bending die; Figure 3 BB sectional view of a multi-purpose adjustable sheet metal bending die; Figure 4 This is a CC sectional view of a multi-purpose adjustable sheet metal bending die.

[0018] In the diagram: 1. Angle adjustment structure; 101. Base; 102. Bidirectional worm gear; 103. Horizontal slider; 104. Moving seat; 105. Guide rod; 106. Guide sleeve; 107. Connecting seat; 108. Connecting plate; 109. Push rod; 110. Rotating support plate; 111. Left half template; 112. Right half template; 113. Mold pad; 114. Connecting shaft; 115. Adjusting motor; 2. Pressure plate structure ; 201. Vertical guide frame; 202. Worm gear bracket; 203. Adjustable worm gear; 204. Adjustable slider; 205. Moving frame; 206. Orienting sleeve; 207. Guide column; 208. Pressing plate frame; 209. Pressing plate; 210. Fixed plate; 211. Push plate; 212. Rotating shaft; 213. Swing rod; 214. Drive shaft; 215. Rotary disk; 216. Pressing plate motor; 217. Adjustable motor. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-4This invention provides a technical solution: a multi-purpose adjustable sheet metal bending die and its working principle, including an angle adjustment structure 1 and a pressure plate structure 2. The pressure plate structure 2 is mainly composed of a vertical guide frame 201. The lower side of the vertical guide frame 201 is connected to a base 101. A worm gear bracket 202 is provided on the lower side inside the vertical guide frame 201. An adjusting worm gear 203 is provided between the upper side of the worm gear bracket 202 and the upper side inside the vertical guide frame 201. An adjusting slider 204 is sleeved on the adjusting worm gear 203. An adjusting motor 217 is connected to the upper end of the adjusting worm gear 203. The adjusting slider 204 is connected to a movable... The movable frame 205 has two directional sliding sleeves 206 on its front side. Guide posts 207 are installed inside the directional sliding sleeves 206. A tablet press frame 208 is connected to the lower end of each guide post 207. A pressure plate 209 is connected to the lower side of the tablet press frame 208. The pressure plate 209 and the tablet press frame 208 are fixed together by a fixing plate 210. A push plate 211 is connected to the upper end of the tablet press frame 208. A swing rod 213 is installed on the upper side of the push plate 211. The swing rod 213 and the push plate 211 are connected by a rotating shaft 212. A drive shaft 214 is installed on the upper side of the swing rod 213. The rear half of the 4-section is connected to the outside of the rotating disk 215. A pressure plate motor 216 is connected to the rear of the rotating disk 215. The rear end of the pressure plate motor 216 is connected to the upper side of the movable frame 205. The lower side of the angle adjustment structure 1 is a base 101. A bidirectional worm gear 102 is installed inside the base 101. Horizontal sliders 103 are installed on both sides of the bidirectional worm gear 102. The horizontal sliders 103 are connected to a movable seat 104. Four guide rods 105 are installed inside the base 101. Four guide sleeves 106 are installed on the lower side of the movable seat 104. The guide sleeves 106 are coaxially connected to the guide rods 105. The movable seat... A connecting seat 107 is connected to the upper side of the base 104. A connecting plate 108 is provided on the upper side of the connecting seat 107. A push rod 109 is connected to the connecting plate 108. A rotating support plate 110 is hinged to the push rod 109. A left half template 111 and a right half template 112 are each connected to the rotating support plate 110. The left half template 111 and the right half template 112 are connected by a connecting shaft 114. A mold pad 113 is provided on the upper side of the left half template 111 and the right half template 112. An adjusting motor 115 is provided on the left side of the base 101. The output shaft of the adjusting motor 115 is connected to the left side of the bidirectional worm gear 102.

[0021] The working principle of a multi-purpose adjustable sheet metal bending die, including any of the above-mentioned multi-purpose adjustable sheet metal bending dies, is as follows: Step S1: Based on the target bending angle of the sheet metal part to be processed, the control system starts the adjusting motor 115, which drives the bidirectional worm gear 102 to rotate inside the base 101. Since the threads on both sides of the bidirectional worm gear 102 rotate in opposite directions, its rotation will drive the lateral sliders 103 on both sides to move laterally closer or further apart along the guide rod 105. At this time, the moving seat 104 moves along the guide rod 105 through the lower guide sleeve 106. The connecting seat 107 on the moving seat 104 drives the connecting plate 108 and the push rod 109 to move. The push rod 109 is connected to the rotating support plate 110 by a hinge, pushing the left half template 111 and the right half template 112 to rotate around the connecting shaft 114, thereby adjusting the included angle between the left half template 111 and the right half template 112 until the set bending angle is reached. The mold pad 113 provides support and protection for the sheet metal part.

[0022] Step S2: After the angle adjustment is completed, place the sheet metal part to be bent on the surface of the mold pad 113 on the left half template 111 and the right half template 112, and ensure that the bending position is aligned with the connection between the left half template 111 and the right half template 112.

[0023] Step S3: Start the pitch adjustment motor 217. The pitch adjustment motor 217 drives the pitch adjustment worm 203 to rotate under the support of the worm bracket 202 and the vertical guide frame 201, so that the pitch adjustment slider 204 moves up and down along the pitch adjustment worm 203, thereby driving the moving frame 205 to adjust to a suitable height to adapt to sheet metal parts of different angles or different bending requirements.

[0024] Step S4: Start the pressure plate motor 216 to drive the rotating disk 215 to rotate. The rotating disk 215 drives the swing arm 213 to move through the drive shaft 214. The swing arm 213 pushes the push plate 211 downward through the rotating shaft 212. The push plate 211 drives the pressure plate frame 208 and the guide column 207 to descend vertically along the directional sliding sleeve 206, so that the pressure plate 209 presses the part of the sheet metal to be bent. Under the pressing action of the pressure plate 209, the sheet metal will be bent and formed at the angle set by the formation of the left half template 111 and the right half template 112 in the angle adjustment structure 1.

[0025] Step S5: After bending is completed, each component is reset under the drive of the motor, and the processed sheet metal part can be taken out, completing one bending operation.

[0026] In summary, this invention utilizes the coordinated design of a bidirectional worm gear, a transverse slider, a moving seat, a push rod, and a rotating support plate in its angle adjustment structure to drive the left and right half of the template to rotate around the connecting shaft, achieving continuous and precise adjustment of the bending angle. Compared to traditional fixed-angle molds, it can meet various sheet metal bending requirements, from acute to obtuse angles, without frequent mold changes, expanding the mold's applicability and enabling rapid response to diverse production orders. Furthermore, since there is no need to change molds for different bending angles, it eliminates the time spent on mold replacement, installation, and debugging, shortening the production preparation cycle and increasing the number of parts processed per unit time. Simultaneously, it reduces the need to purchase molds of various specifications, lowering mold acquisition and storage costs, and also reducing the manpower and material resources required for mold management.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose adjustable sheet metal bending die, comprising an angle adjusting structure (1) and a pressing plate structure (2), the lower side of the angle adjusting structure (1) being a base (101), characterized in that: The base (101) is internally provided with a bidirectional worm gear (102), and transverse sliders (103) are provided on both sides of the bidirectional worm gear (102). The transverse sliders (103) are connected to a movable seat (104). The base (101) is internally provided with four guide rods (105). The movable seat (104) is provided with four guide sleeves (106) on its lower side. The guide sleeves (106) are coaxially connected to the guide rods (105). The movable seat (104) is connected to a connecting seat (107) on its upper side. The connecting seat (107) is provided with a connecting plate (108) on its upper side. A push rod (109) is connected to a plate (108), and the push rod (109) is hinged to a rotating support plate (110). The rotating support plate (110) is connected to a left half template (111) and a right half template (112). The left half template (111) and the right half template (112) are connected by a connecting shaft (114). A mold pad (113) is provided on the upper side of the left half template (111) and the right half template (112). An adjusting motor (115) is provided on the left side of the base (101), and the output shaft of the adjusting motor (115) is connected to the left side of the bidirectional worm gear (102).

2. The multi-purpose adjustable sheet metal bending die according to claim 1, characterized in that: The pressure plate structure (2) is based on a vertical guide frame (201). The lower side of the vertical guide frame (201) is connected to the base (101). A worm gear bracket (202) is provided on the lower side inside the vertical guide frame (201). An adjustable worm gear (203) is provided between the upper side of the worm gear bracket (202) and the upper side inside the vertical guide frame (201).

3. The multi-purpose adjustable sheet metal bending die according to claim 2, characterized in that: The adjusting worm gear (203) is fitted with an adjusting slider (204), the upper end of the adjusting worm gear (203) is connected to an adjusting motor (217), and the adjusting slider (204) is connected to a moving frame (205).

4. The multi-purpose adjustable sheet metal bending die according to claim 3, characterized in that: Two directional sliding sleeves (206) are provided on the front side of the movable frame (205). A guide post (207) is provided inside the directional sliding sleeve (206). A tablet press frame (208) is connected to the lower end of the guide post (207). A pressure plate (209) is connected to the lower side of the tablet press frame (208). The pressure plate (209) and the tablet press frame (208) are fixed together by a fixing plate (210).

5. A multi-purpose adjustable sheet metal bending die according to claim 4, characterized in that: The upper end of the tablet press (208) is connected to a push plate (211), and a swing rod (213) is provided on the upper side of the push plate (211). The swing rod (213) and the push plate (211) are connected by a rotating shaft (212).

6. A multi-purpose adjustable sheet metal bending die according to claim 5, characterized in that: A drive shaft (214) is provided on the upper side of the swing arm (213). The rear half of the drive shaft (214) is connected to the outside of the rotating disk (215). A pressure plate motor (216) is connected to the rear of the rotating disk (215). The rear end of the pressure plate motor (216) is connected to the upper side of the moving frame (205).

7. The multi-purpose adjustable sheet metal bending die according to claim 1, characterized in that: The angle adjustment structure (1) has an angle that can meet different sheet metal bending angles.

8. The working principle of a multi-purpose adjustable sheet metal bending die, characterized in that: The multi-purpose adjustable sheet metal bending die, including any one of claims 1-7, is operated as follows: Step S1: Based on the target bending angle of the sheet metal part to be processed, start the adjusting motor (115) through the control system. The adjusting motor (115) drives the bidirectional worm gear (102) to rotate inside the base (101). Since the threads on both sides of the bidirectional worm gear (102) turn in opposite directions, its rotation will drive the transverse sliders (103) on both sides to move laterally closer or further apart along the guide rod (105). At this time, the moving seat (104) moves along the guide rod (105) through the lower guide sleeve (106). The moving seat (107) on the moving seat (104) drives the connecting plate (108) and the push rod (109) to move. The push rod (109) is connected to the rotating support plate (110) by a hinge, which pushes the left half template (111) and the right half template (112) to rotate around the connecting shaft (114), thereby adjusting the included angle between the left half template (111) and the right half template (112) until the set bending angle is reached. The mold pad (113) provides support and protection for the sheet metal parts. Step S2: After the angle adjustment is completed, place the sheet metal part to be bent on the mold pad (113) surface on the left half template (111) and the right half template (112), and ensure that the bending position is aligned with the connection between the left half template (111) and the right half template (112); Step S3: Start the pitch adjustment motor (217). The pitch adjustment motor (217) drives the pitch adjustment worm (203) to rotate under the support of the worm bracket (202) and the vertical guide frame (201), so that the pitch adjustment slider (204) moves up and down along the pitch adjustment worm (203), thereby driving the moving frame (205) to adjust to a suitable height to adapt to sheet metal parts of different angles or different bending requirements; Step S4: Start the pressure plate motor (216) to drive the rotating disk (215) to rotate. The rotating disk (215) drives the swing arm (213) to move through the drive shaft (214). The swing arm (213) pushes the push plate (211) to move downward through the rotating shaft (212). The push plate (211) drives the pressure plate frame (208) and guide column (207) to descend vertically along the directional sliding sleeve (206), so that the pressure plate (209) presses the part of the sheet metal to be bent. Under the pressing action of the pressure plate (209), the sheet metal will be bent and formed along the angle set by the left half template (111) and the right half template (112) in the angle adjustment structure (1). Step S5: After bending is completed, each component is reset under the drive of the motor, and the processed sheet metal part can be taken out, completing one bending operation.

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