Punching device for distribution box production
By combining components such as cylinders and lifting plates, the problem of unstable clamping of workpieces of different sizes in existing power distribution box production equipment has been solved, realizing automatic clamping and adaptive clamping of workpieces, and ensuring the stability of the punching process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAOCHENG ELECTRIC POWER HUACHANG IND GENERAL CO
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-07
AI Technical Summary
Existing electrical distribution box production equipment has difficulty effectively clamping workpieces of different sizes, resulting in unstable clamping.
By employing a combination of cylinders, lifting plates, U-shaped rods, punches, movable columns, chassis, extrusion pads, translation plates, guide rods, guide blocks, and springs, along with a drive motor, drive shaft, top plate, movable rods, L-shaped plates, U-shaped rods, guide rods, translation plates, and side frames, the system achieves automatic clamping and holding of workpieces. The distance of the extrusion pads can be adjusted to accommodate workpieces of different sizes.
It achieves stable clamping of workpieces of different sizes, ensuring the stability and adaptability of the workpieces during the punching process.
Smart Images

Figure CN224463531U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of distribution box manufacturing technology, specifically a punching device for distribution box manufacturing. Background Technology
[0002] Distribution boxes are electrical equipment characterized by their small size, easy installation, unique technical performance, fixed location, unique configuration functions, lack of site restrictions, widespread application, stable and reliable operation, high space utilization, small footprint, and environmental benefits. During the production process, some parts and plates of distribution boxes require punching to facilitate wiring. According to the patent document with authorization announcement number CN216461110U, entitled "An Automatic Punching Device for Distribution Box Production," it includes a base plate, a top frame, and a hydraulic cylinder. The top frame is mounted on the top of the base plate, and both ends of the top frame are fixedly connected to one side of the top of the base plate. A hydraulic cylinder is fixedly mounted on the middle of the outer side of the top frame, and a telescopic mechanism is installed inside the hydraulic cylinder. The structure has a telescopic rod, one end of which vertically extends through the middle of the top frame and into its interior. A stamping die body is fixedly mounted on the bottom end of the telescopic rod. A horizontally positioned movable plate is movably mounted inside the top frame, with the telescopic rod fixedly passing through the middle of the movable plate. Mounting plates are fixedly mounted through the four corners of the top of the movable plate. A sliding groove is formed inside the mounting plate, and a slider is movably mounted at the lower end of the groove. A movable rod is fixedly mounted at the middle of the bottom end of the slider, with the bottom end of the movable rod movably passing through the inner wall of the bottom end of the groove. A pressure block is fixedly mounted at the bottom end of the movable rod. A spring is fixedly mounted at the top end of the slider, and the top end of the spring is fixedly connected to the inner wall of the top end of the groove. However, the following defects still exist:
[0003] Although it can automatically clamp and limit the workpiece through the pressure blocks, the distance between the pressure blocks is fixed, making it inconvenient to clamp workpieces of different sizes. Utility Model Content
[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a punching device for the production of distribution boxes, which effectively solves the problem of the inconvenience of clamping workpieces of different sizes.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a punching device for producing distribution boxes, comprising a base, a punching mechanism on the top of the base, and a clamping mechanism on the punching mechanism;
[0006] The punching mechanism includes a U-shaped rod located above the base. Support blocks are fixedly connected to both ends of the U-shaped rod, and both support blocks are fixed to the top of the base. A lifting plate is movably sleeved on the outer side of the U-shaped rod, and a punch is fixedly installed at the bottom of the lifting plate. A sleeve plate is fixedly sleeved on the outer side of the U-shaped rod, and a cylinder is fixedly installed between the bottom of the sleeve plate and the top of the lifting plate. Two side frames are symmetrically fixedly connected to the outer side of the lifting plate, and a sliding plate is movably sleeved inside each of the two side frames. A guide rod is fixedly connected to the top of the sliding plate, and a guide block is movably sleeved on the outer side of the guide rod. A movable column is fixedly connected to the bottom of the guide block, and the bottom end of the movable column passes through the sliding plate and is fixedly connected to a chassis. A compression pad is fixedly connected to the bottom of the chassis. A spring is fixedly connected between the guide block and the sliding plate, and the spring is sleeved on the outer side of the movable column.
[0007] Preferably, the top of the base is fixedly mounted with a placement platform located directly below the punch, and the top of the placement platform is provided with a through hole that matches the punch.
[0008] Preferably, a U-shaped rod is fixedly connected between the tops of the two side frames, and two L-shaped plates are symmetrically and movably sleeved on the outer side of the U-shaped rod, with the two L-shaped plates respectively fixed to the tops of the two guide rods.
[0009] Preferably, a sleeve block is fixedly sleeved on the middle of the outer side of the second U-shaped rod. The sleeve block is fixed to the top of the lifting plate. A drive motor is fixedly installed on the top of the sleeve block. A drive shaft is fixedly connected to the drive motor. A top plate is fixedly connected to the top of the drive shaft. Two movable rods are symmetrically rotatably connected to the top of the top plate. The ends of the two movable rods away from the top plate are respectively rotatably connected to the tops of the two L-shaped plates.
[0010] Preferably, the clamping mechanism includes a slide rod fixed between two support blocks, a placement platform fixedly sleeved on the outer middle of the slide rod, two sliding plates symmetrically and movably sleeved on the outer side of the slide rod, a bracket fixedly connected to the top of each of the two sliding plates, a clamping pad fixedly installed on the side of the two brackets that are close to each other, and a spring fixedly connected to the side of the two sliding plates that are far from each other, and the ends of the two springs that are far from each other are respectively fixedly connected to the two support blocks, and both springs are sleeved on the outer side of the slide rod.
[0011] Preferably, two sliding plates are symmetrically and movably sleeved on the outer side of the sliding rod. The bottom of both sliding plates is provided with support wheels located at the top of the base. The two sliding plates are respectively abutted against the two sliding plates on opposite sides. The bottom of the lifting plate is symmetrically and rotatably connected to two drive rods. The bottom ends of the two drive rods are respectively rotatably connected to the top of the two sliding plates, and the two drive rods pass through the two brackets respectively.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. Through the cooperation between the cylinder, lifting plate, U-shaped round rod one, punch, movable column, chassis, extrusion pad, translation plate, guide rod, guide block and spring one, the workpiece is automatically clamped during the punching process. Through the cooperation between the drive motor, drive shaft, top plate, movable rod, L-shaped plate, U-shaped round rod two, guide rod, translation plate and side frame, the distance between the two extrusion pads can be changed to clamp workpieces of different sizes.
[0014] 2. Through the cooperation of the cylinder, lifting plate, U-shaped rod one, drive rod, slide plate one, slide rod, slide plate two, spring two and bracket, the two clamping pads can be brought close to each other to limit the workpiece and ensure the stability of the workpiece. Attached Figure Description
[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0016] In the attached diagram:
[0017] Figure 1 This is a schematic diagram of the punching device used in the production of the distribution box of this utility model;
[0018] Figure 2 This is a schematic diagram of the punching mechanism of this utility model;
[0019] Figure 3 This is a schematic diagram of the lifting plate structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the clamping mechanism of this utility model.
[0021] In the diagram: 1. Base; 2. Punching mechanism; 201. U-shaped round rod one; 202. Support block; 203. Through hole; 204. Placement platform; 205. Punch; 206. Lifting plate; 207. Cylinder; 208. Top plate; 209. Sleeve plate; 2010. Drive shaft; 2011. Translation plate; 2012. Side frame; 2013. Chassis; 2014. Sleeve block; 2015. Drive motor; 201 6. U-shaped round rod II; 2017. Extrusion pad; 2018. Movable column; 2019. Spring I; 2020. Guide block; 2021. Guide rod; 2022. L-shaped plate; 2023. Movable rod; 3. Clamping mechanism; 301. Slide rod; 302. Slide plate I; 303. Slide plate II; 304. Spring II; 305. Drive rod; 306. Clamping pad; 307. Bracket; 308. Support wheel. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] Example 1, by Figure 1 The present invention relates to a punching device for the production of distribution boxes, comprising a base 1, a punching mechanism 2 on the top of the base 1, and a clamping mechanism 3 on the punching mechanism 2.
[0024] Specifically, by Figure 2-3The punching mechanism 2 includes a U-shaped rod 201 located above the base 1. Support blocks 202 are fixedly connected to both ends of the U-shaped rod 201, and both support blocks 202 are fixed to the top of the base 1. A lifting plate 206 is movably sleeved on the outer side of the U-shaped rod 201. A punch 205 is fixedly installed at the bottom of the lifting plate 206. A sleeve plate 209 is fixedly sleeved on the outer side of the U-shaped rod 201. A cylinder 207 is fixedly installed between the bottom of the sleeve plate 209 and the top of the lifting plate 206. Symmetrically fixed to the outer side of the lifting plate 206 are... Two side frames 2012, each with a sliding plate 2011 movably fitted inside. A guide rod 2021 is fixedly connected to the top of each sliding plate 2011. A guide block 2020 is movably fitted to the outside of the guide rod 2021. A movable column 2018 is fixedly connected to the bottom of the guide block 2020. The bottom end of the movable column 2018 passes through the sliding plate 2011 and is fixedly connected to a chassis 2013. A compression pad 2017 is fixedly connected to the bottom of the chassis 2013. The bottom surface of the compression pad 2017 is lower than the bottom end of the punch 205. A spring 2019 is fixedly connected between the block 2020 and the translation plate 2011. The spring 2019 is sleeved on the outside of the movable column 2018. A placement platform 204 located directly below the punch 205 is fixedly installed on the top of the base 1. The top of the placement platform 204 has a through hole 203 that matches the punch 205. A U-shaped round rod 2016 is fixedly connected between the tops of the two side frames 2012. Two L-shaped plates 2022 are symmetrically and movably sleeved on the outside of the U-shaped round rod 2016. The two L-shaped plates 2022 are respectively fixed to two guide rods. At the top of 2021, a sleeve block 2014 is fixedly sleeved on the outer middle of the U-shaped round rod 2016. The sleeve block 2014 is fixed to the top of the lifting plate 206. A drive motor 2015 is fixedly installed on the top of the sleeve block 2014. A drive shaft 2010 is fixedly connected to the drive motor 2015. A top plate 208 is fixedly connected to the top of the drive shaft 2010. Two movable rods 2023 are symmetrically rotatably connected to the top of the top plate 208. The ends of the two movable rods 2023 away from the top plate 208 are rotatably connected to the tops of the two L-shaped plates 2022 respectively.
[0025] In operation, the workpiece is first placed on top of the placement platform 204. Then, the two cylinders 207 are activated, causing the lifting plate 206 to slide downwards along the U-shaped rod 201, and the punch 205 to descend. Simultaneously, the two pressing pads 2017 move downwards. When both pressing pads 2017 are in contact with the workpiece, the punch 205 is not in contact with the workpiece. The lifting plate 206 then continues to descend, while the two guide blocks 2020 slide along the two guide rods 2021. Both springs 2019 deform, and under the action of the elastic force of the two springs 2019, the two... The extrusion pad 2017 is pressed tightly against the workpiece to achieve the clamping of the workpiece until the punch 205 penetrates the workpiece and inserts into the through hole 203 to achieve the punching of the workpiece. When the drive motor 2015 is started, the drive shaft 2010 drives the movable column 2018 to rotate, and the two movable rods 2023 respectively drive the two L-shaped plates 2022 to slide along the U-shaped round rod 2016. Then, the two guide rods 2021 drive the two translation plates 2011 to slide along the two side frames 2012 respectively. Finally, the distance between the two extrusion pads 2017 is changed to clamp workpieces of different sizes.
[0026] Specifically, by Figure 4 The clamping mechanism 3 includes a slide rod 301 fixed between two support blocks 202. A placement platform 204 is fixedly sleeved on the outer middle of the slide rod 301. Two sliding plates 303 are symmetrically and movably sleeved on the outer side of the slide rod 301. A bracket 307 is fixedly connected to the top of each sliding plate 303. A clamping pad 306 is fixedly installed on the side of each bracket 307 that is close to each other. Both the clamping pad 306 and the compression pad 2017 are made of rubber to increase friction. A spring 304 is fixedly connected to the side of each sliding plate 303 that is far from each other. The ends of the two springs 304 that are far from each other are fixedly connected to the two support blocks 202 respectively. Sleeve on the outside of slide bar 301, two slide plates 302 are symmetrically and movably sleeved on the outside of slide bar 301. The bottom of slide plates 302 and slide plates 303 are provided with support wheels 308 located at the top of base 1, which can support slide plates 302 and slide plates 303 and ensure the stability of slide plates 302 and slide plates 303 when sliding along slide bar 301. The sides of the two slide plates 302 that are far apart from each other abut against the two slide plates 303 respectively. The bottom of lifting plate 206 is symmetrically and rotatably connected to two drive rods 305. The bottom ends of the two drive rods 305 are rotatably connected to the top of the two slide plates 302 respectively, and the two drive rods 305 pass through the two brackets 307 respectively.
[0027] In the initial state, the two sliding plates 302, with their sides far apart, abut against the two sliding plates 303, while the two springs 304 are compressed. When the lifting plate 206 slides down along the U-shaped rod 201, the two driving rods 305 drive the two sliding plates 302 to slide along the two sliding rods 301. At this time, the two springs 304 reset and drive the two sliding plates 303 to slide along the sliding rods 301. The two brackets 307 drive the two clamping pads 306 to move. Finally, the two clamping pads 306 move closer to each other to limit the workpiece and further ensure the stability of the workpiece.
Claims
1. A punching device for manufacturing distribution boxes, comprising a base (1), characterized in that: The base (1) is provided with a punching mechanism (2) on its top, and a clamping mechanism (3) is provided on the punching mechanism (2). The punching mechanism (2) includes a U-shaped round rod (201) located above the base (1). Both ends of the U-shaped round rod (201) are fixedly connected to support blocks (202). Both support blocks (202) are fixed to the top of the base (1). A lifting plate (206) is movably sleeved on the outside of the U-shaped round rod (201). A punch (205) is fixedly installed at the bottom of the lifting plate (206). A sleeve plate (209) is fixedly sleeved on the outside of the U-shaped round rod (201). A cylinder (207) is fixedly installed between the bottom of the sleeve plate (209) and the top of the lifting plate (206). Two side frames (2012) are symmetrically fixedly connected to the outside of the lifting plate (206). Inside the 2012, a sliding plate (2011) is movably sleeved. A guide rod (2021) is fixedly connected to the top of the sliding plate (2011). A guide block (2020) is movably sleeved to the outside of the guide rod (2021). A movable column (2018) is fixedly connected to the bottom of the guide block (2020). The bottom end of the movable column (2018) passes through the sliding plate (2011) and is fixedly connected to the chassis (2013). A compression pad (2017) is fixedly connected to the bottom of the chassis (2013). A spring (2019) is fixedly connected between the guide block (2020) and the sliding plate (2011). The spring (2019) is sleeved on the outside of the movable column (2018).
2. The punching device for producing distribution boxes according to claim 1, characterized in that: The base (1) has a fixed mounting platform (204) located directly below the punch (205) on its top. The top of the mounting platform (204) has a through hole (203) that matches the punch (205).
3. The punching device for producing distribution boxes according to claim 1, characterized in that: A U-shaped rod (2016) is fixedly connected between the tops of the two side frames (2012). Two L-shaped plates (2022) are symmetrically and movably sleeved on the outer side of the U-shaped rod (2016). The two L-shaped plates (2022) are respectively fixed to the tops of the two guide rods (2021).
4. The punching device for producing distribution boxes according to claim 3, characterized in that: A sleeve block (2014) is fixedly sleeved on the middle of the outer side of the U-shaped round rod (2016). The sleeve block (2014) is fixed to the top of the lifting plate (206). A drive motor (2015) is fixedly installed on the top of the sleeve block (2014). A drive shaft (2010) is fixedly connected to the drive motor (2015). A top plate (208) is fixedly connected to the top of the drive shaft (2010). Two movable rods (2023) are symmetrically rotatably connected to the top of the top plate (208). The ends of the two movable rods (2023) away from the top plate (208) are rotatably connected to the tops of the two L-shaped plates (2022).
5. A punching device for producing distribution boxes according to claim 1, characterized in that: The clamping mechanism (3) includes a slide rod (301) fixed between two support blocks (202), a placement platform (204) fixedly sleeved on the middle of the outer side of the slide rod (301), two sliding plates (303) symmetrically and movably sleeved on the outer side of the slide rod (301), a bracket (307) fixedly connected to the top of each of the two sliding plates (303), a clamping pad (306) fixedly installed on the side of each of the two brackets (307) that is close to each other, and a spring (304) fixedly connected to the side of each of the two sliding plates (303) that is far away from each other, and the ends of the two springs (304) that are far away from each other are fixedly connected to the two support blocks (202) respectively, and the two springs (304) are sleeved on the outer side of the slide rod (301).
6. A punching device for producing distribution boxes according to claim 5, characterized in that: Two sliding plates (302) are symmetrically and movably sleeved on the outside of the sliding rod (301). The bottom of the sliding plates (302) and the sliding plates (303) are provided with support wheels (308) located at the top of the base (1). The two sliding plates (302) are respectively abutted against the two sliding plates (303) on the side away from each other. The bottom of the lifting plate (206) is symmetrically and rotatably connected to two drive rods (305). The bottom ends of the two drive rods (305) are respectively rotatably connected to the top of the two sliding plates (302), and the two drive rods (305) pass through the two brackets (307).