Cable bridge cold extrusion forming device and method for preventing deformation of metal piece

Abstract

The invention relates to the technical field of cable bridges, in particular to a cable bridge cold extrusion forming device and method for preventing a metal piece from deforming, the cable bridge cold extrusion forming device comprises a device shell, a conveying table is fixedly connected to the bottom of the inner wall of the device shell, and an extrusion forming mechanism is fixedly connected to the top of the conveying table; the cable bridge cold extrusion forming device comprises an extrusion forming mechanism, the rear side of the extrusion forming mechanism is fixedly connected with a positioning mechanism, the extrusion forming mechanism comprises an extrusion forming assembly, and the left side and the right side of the extrusion forming assembly are each provided with a control assembly. In the forming process of the metal part, the series of measures not only ensure the stability of the metal part in the forming process and effectively prevent deformation, but also greatly ensure the forming quality of the cable bridge, and in addition, the laser cutting head is used for accurate cutting by accurately controlling the force and the position of the hydraulic push rod.

Description

Technical Field

[0001] The present invention relates to the technical field of cable trays, and more specifically, to a cold extrusion forming device and method for a cable tray that prevents deformation of metal parts. Background Art

[0002] A cable tray refers to a component system used to support and protect cables and their accessories. It is usually designed to neatly and orderly arrange cables inside or outside buildings, as well as in industrial facilities. The main functions of a cable tray are to provide support, guidance, and protection for cables, ensuring that the cables are not damaged during the laying process, and also facilitating subsequent maintenance and replacement. Cable trays are usually made of metal or non-metal materials, and have the characteristics of strong structure, light weight, and corrosion resistance. Its structural design is reasonable and can adapt to the cable laying requirements in different occasions, including various shapes and specifications such as straight sections, elbows, tees, and crosses. In addition, cable trays also have good fire resistance, which can, to a certain extent, prevent the spread of fire and protect the safety of cables and the circuits they carry.

[0003] According to the patent document: CN117583465A, an automated hot-dip galvanized bridge pressing and forming device disclosed, which relates to the technical field of cable bridge pressing, includes an upper pressing die, a lower pressing die, and several punches. The upper pressing die contacts the lower pressing die based on the power of a lifting mechanism to extrude a bridge blank, and the punches punch holes in the pressed bridge blank based on the power of the lifting mechanism. The punch includes a head with a radial dimension larger than the tail; several extrusion parts are provided on the lower pressing die, and several punches correspond to several extrusion parts one by one; during the stamping stroke of the punch, after the head punches a hole in the bridge blank, it continues to move downward, and at this time, the extrusion part moves to extrude the burrs that appear at the punched hole of the bridge blank towards the center of the hole; during the return stroke of the punch, the head moves upward to punch off the burrs of the bridge blank towards the center of the hole.

[0004] Cable trays made of metal parts are usually formed into concave cable trays by extruding both sides of a long strip-shaped steel plate. The traditional extrusion method is to apply inward pressure to both sides of the steel plate to gradually bend it and form a concave cable tray. However, this traditional extrusion method often has the problem of deformation of metal parts. Especially during the extrusion process, the edge parts of the steel plate are prone to deformation such as twisting and warping due to uneven stress, which not only affects the forming quality of the cable tray but also increases the difficulty and cost of subsequent processing. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the present invention provides a cold extrusion forming device and method for preventing deformation of metal parts. The technical problem to be solved by the present invention is that traditional extrusion methods often have problems with metal part deformation. Especially during the extrusion process, the edge parts of the steel plate are prone to deformation such as twisting and warping due to uneven stress. This not only affects the forming quality of the cable tray but also increases the difficulty and cost of subsequent processing.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A cold extrusion forming device and method for preventing deformation of metal parts, including a device housing. The bottom of the inner wall of the device housing is fixedly connected with a transfer table. The top of the transfer table is fixedly connected with an extrusion forming mechanism. The rear side of the extrusion forming mechanism is fixedly connected with a positioning mechanism;

[0008] The extrusion forming mechanism includes an extrusion forming component, and control components are arranged on both the left and right sides of the extrusion forming component;

[0009] The extrusion forming component includes two side plates. The front and rear sides of the outer sides of the two side plates are fixedly connected with support rods. The front and rear sides of the tops of the two side plates are fixedly connected with vertical rods. The tops of the two groups of vertical rods are fixedly connected to the top of the inner wall of the device housing. The inner bottom sides of the two groups of support rods are fixedly connected to the left and right sides of the transfer table.

[0010] As a further solution of the present invention: including a device housing. The bottom of the inner wall of the device housing is fixedly connected with a transfer table. The top of the transfer table is fixedly connected with an extrusion forming mechanism. The rear side of the extrusion forming mechanism is fixedly connected with a positioning mechanism;

[0011] The extrusion forming mechanism includes an extrusion forming component, and control components are arranged on both the left and right sides of the extrusion forming component;

[0012] The extrusion forming component includes two side plates. The front and rear sides of the outer sides of the two side plates are fixedly connected with support rods. The front and rear sides of the tops of the two side plates are fixedly connected with vertical rods. The tops of the two groups of vertical rods are fixedly connected to the top of the inner wall of the device housing. The inner bottom sides of the two groups of support rods are fixedly connected to the left and right sides of the transfer table.

[0013] As a further solution of the present invention: the left and right sides of the bottoms of the two cross plates are fixedly connected with support vertical rods. The bottoms of the left and right groups of support vertical rods are fixedly connected to the front and rear sides of the tops of the two connecting rods. Two columnar cross bars are fixedly connected to the inner sides of the left and right groups of support vertical rods.

[0014] As a further solution of the present invention: a reversed T-shaped plate is fixedly connected to the middle of the tops of the two cross plates. A hydraulic push rod is fixedly connected to the bottom of the inner wall of the reversed T-shaped plate. An L-shaped push rod chute is provided in the middle of the top of the reversed T-shaped plate. Guide blocks are fixedly connected to the four sides of the top of the reversed T-shaped plate. An L-shaped push rod is slidably connected to the inner wall of the L-shaped push rod chute provided at the top of the reversed T-shaped plate. The bottom of the front side of the L-shaped push rod is fixedly connected to the front end of the hydraulic push rod.

[0015] As a further solution of the present invention: V-shaped rotating rod connecting rods are fixedly connected to the left and right sides of the inner sides of the two cross plates. V-shaped rotating rods are rotatably connected to the front and back sides of the inner sides of the two V-shaped rotating rod connecting rods.

[0016] As a further solution of the present invention: clamping plates are slidably connected to the left and right sides of the outer walls of the front and rear groups of columnar cross bars. The outer sides of the two clamping plates are rotatably connected to the inner bottoms of the left and right groups of V-shaped rotating rods. A plurality of clamping rollers are slidably connected to the inner bottoms of the two clamping plates. Inner clamping plates are slidably connected to the two sides of the inner sides of the two clamping plates on the outer walls of the front and rear groups of columnar cross bars. The outer tops of the two inner clamping plates are rotatably connected to the inner tops of the left and right groups of V-shaped rotating rods.

[0017] As a further solution of the present invention: both of the control components include push-pull plates. Push rods are fixedly connected to the front and back sides of the tops of the two push-pull plates. The inner sides of the left and right groups of push rods extend to the inner sides of the left and right groups of guide blocks through the inner walls of the left and right groups of guide blocks and the tops are fixedly connected with rotating short rod connecting rods. A plurality of rotating short rods are rotatably connected to the tops of the two rotating short rod connecting rods. The bottoms of the left and right groups of rotating short rods, on the side far from the rotating short rod connecting rods, are rotatably connected to the left and right sides of the top of the L-shaped push rod. Reversed L-shaped push-pull blocks are fixedly connected to the front and back sides of the inner bottoms of the two push-pull plates. The inner sides of the left and right groups of reversed L-shaped push-pull blocks extend to the inner sides of the two side plates through the two through grooves provided in the two side plates. The inner sides of the left and right groups of reversed L-shaped push-pull blocks are fixedly connected to the front and back sides of the outer sides of the two clamping plates.

[0018] As a further solution of the present invention: the positioning mechanism includes two connection blocks. The inner sides of the two connection blocks are fixedly connected to the middle of the outer rear sides of the two side plates. A chute rod is fixedly connected to the tops of the two connection blocks. Cutting control plate connecting rods are fixedly connected to the outer sides of the two connection blocks. A laser cutting head control plate is fixedly connected to the top of the rear side of the two cutting control plate connecting rods. A laser cutting head is movably connected to the bottom of the laser cutting head control plate.

[0019] As a further solution of the present invention: On the left and right sides of the inner wall of the chute rod, there are sliding connections with expansion and contraction blocks. The rear sides of the two expansion and contraction blocks extend to the rear sides of the outer walls of the two chute rods and are fixedly connected with positioning rods. On the tops of the two expansion and contraction blocks, there are rotationally connected rotating rods. On the sides of the two rotating rods away from the expansion and contraction blocks, there are rotationally connected rotating rod connection blocks. The inner sides of the two rotating rod connection blocks are fixedly connected to the rear sides of the outer sides of the two clamping plates.

[0020] In addition, the present invention also relates to a cold extrusion forming device and method for preventing deformation of metal parts in a cable tray, including the following steps:

[0021] Step 1: Place the steel plate to be processed on the conveyor table, ensuring that the steel plate is stable and in close contact with the surface of the conveyor table to avoid sliding or offset during transmission;

[0022] Step 2: Start the conveyor table and transmit the steel plate along the preset path into the interior of the device housing. During the transmission process, the steel plate will gradually enter the working area of the extrusion forming mechanism;

[0023] Step 3: After the steel plate completely enters the working area of the extrusion forming mechanism, the staff needs to perform preliminary folding or bending on the steel plate according to the preset angle and shape requirements to better adapt to the subsequent extrusion forming process;

[0024] Step 4: Start the hydraulic push rod. Through a series of connecting rods and transmission mechanisms, the force is evenly distributed on both sides of the steel plate, causing it to gradually bend into the expected concave state. During this process, the design of the V-shaped rotating rod plays a crucial role. It can ensure that the clamping plate and the inner clamping plate always maintain a stable included angle during the extrusion process, thus preventing the metal parts from deforming due to uneven stress;

[0025] Step 5: When the steel plate is bent to the expected angle and shape, reverse-start the hydraulic push rod to release the extrusion of the clamping plate and the inner clamping plate on the steel plate. At this time, the positioning mechanism will automatically adjust its position to accurately position the steel plate and prepare for the subsequent cutting process;

[0026] Step 6: Start the laser cutting head and perform precise cutting on the steel plate according to the preset cutting length and shape. After cutting is completed, turn off the laser cutting head and remove the cut steel plate from the conveyor table to complete the entire extrusion forming process of the cable tray.

[0027] The beneficial effects of the present invention are as follows:

[0028] The present invention realizes the cold extrusion forming technology of cable trays by setting up an extrusion forming mechanism and a positioning mechanism. During the forming process of metal parts, this series of measures not only ensures the stability of metal parts during the forming process, effectively preventing deformation, but also greatly guarantees the forming quality of cable trays. In addition, by precisely controlling the force and position of the hydraulic push rod and using a laser cutting head for precise cutting, the forming efficiency and processing accuracy of cable trays are further improved. The implementation of these methods not only improves production efficiency but also ensures high-quality standards of products, meeting the strict requirements for cable trays in industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional structure schematic diagram of the main body of the present invention;

[0030] Figure 2 is a three-dimensional separated structure schematic diagram of the main body of the present invention;

[0031] Figure 3 is a three-dimensional structure schematic diagram of the conveyor table, extrusion forming mechanism and positioning mechanism of the present invention;

[0032] Figure 4 is a three-dimensional separated structure schematic diagram of the conveyor table, extrusion forming mechanism and positioning mechanism of the present invention;

[0033] Figure 5 is a three-dimensional structure schematic diagram of the extrusion forming mechanism of the present invention;

[0034] Figure 6 is a three-dimensional separated structure schematic diagram of the extrusion forming mechanism of the present invention;

[0035] Figure 7 is a three-dimensional separated structure schematic diagram of the extrusion forming assembly of the present invention;

[0036] Figure 8 is a three-dimensional structure schematic diagram of the control assembly of the present invention;

[0037] Figure 9 is a three-dimensional structure schematic diagram of the positioning mechanism of the present invention;

[0038] Figure 10 is a three-dimensional separated structure schematic diagram of the positioning mechanism of the present invention.

[0039] In the figure: 1. Device housing; 2. Conveyor table; 3. Extrusion forming mechanism; 31. Extrusion forming assembly; 311. Side plate; 312. Vertical rod; 313. Support rod; 314. Through groove; 315. Connecting rod; 316. Support vertical rod; 317. Columnar cross bar; 318. Cross plate; 319. Inverted T-shaped plate; 3110. Hydraulic push rod; 3111. L-shaped push rod slide groove; 3112. Guide block; 3113. L-shaped push rod; 3114. V-shaped rotating rod connecting rod; 3115. V-shaped rotating rod; 3116. Clamping plate; 3117. Clamping roller; 3118. Inner clamping plate; 32. Control assembly; 321. Push-pull plate; 322. Push rod; 323. Rotating short rod connecting rod; 324. Rotating short rod; 325. Inverted L-shaped push-pull block; 4. Positioning mechanism; 41. Connecting block; 42. Slide groove rod; 43. Cutting control plate connecting rod; 44. Expanding and contracting block; 45. Positioning rod; 46. Rotating rod; 47. Rotating rod connecting block; 48. Laser cutting head control plate; 49. Laser cutting head. Specific embodiments

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] As Figure 1-4 shown, the present invention provides a cold extrusion forming device and method for a cable tray to prevent metal parts from deforming, including a device housing 1. The bottom of the inner wall of the device housing 1 is fixedly connected with a conveyor table 2. The top of the conveyor table 2 is fixedly connected with an extrusion forming mechanism 3. The rear side of the extrusion forming mechanism 3 is fixedly connected with a positioning mechanism 4.

[0042] As Figure 4-10As shown in the figure, the extrusion forming mechanism 3 includes an extrusion forming assembly 31. Control assemblies 32 are arranged on both the left and right sides of the extrusion forming assembly 31. The extrusion forming assembly 31 includes two side plates 311. Support rods 313 are fixedly connected to the front and rear sides of the outer sides of the two side plates 311. Vertical rods 312 are fixedly connected to the front and rear sides of the tops of the two side plates 311. The tops of the two groups of vertical rods 312 are fixedly connected to the inner top wall of the device housing 1. The inner bottoms of the two groups of support rods 313 are fixedly connected to the left and right sides of the transfer table 2. Connecting rods 315 are fixedly connected to the middle parts of the inner sides of the two side plates 311. Through grooves 314 are formed in the front and rear sides of the outer sides of the two side plates 311. Horizontal plates 318 are fixedly connected to the front and rear sides of the inner sides of the two side plates 311. Support vertical rods 316 are fixedly connected to the left and right sides of the bottoms of the two horizontal plates 318. The bottoms of the left and right groups of support vertical rods 316 are fixedly connected to the front and rear sides of the tops of the two connecting rods 315. Two columnar cross bars 317 are fixedly connected to the inner sides of the left and right groups of support vertical rods 316. A horizontal plate 318 is fixedly connected to the middle part of the top of the two horizontal plates 318. A hydraulic push rod 3110 is fixedly connected to the inner bottom wall of the inverted T-shaped plate 319. An L-shaped push rod sliding groove 3111 is formed in the middle of the top of the inverted T-shaped plate 319. Guide blocks 3112 are fixedly connected to the four sides of the top of the inverted T-shaped plate 319. An L-shaped push rod 3113 is slidably connected to the inner wall of the L-shaped push rod sliding groove 3111 opened at the top of the inverted T-shaped plate 319. The front bottom of the L-shaped push rod 3113 is fixedly connected to the front end of the hydraulic push rod 3110. V-shaped rotating rod connecting rods 3114 are fixedly connected to the left and right sides of the inner sides of the two horizontal plates 318. V-shaped rotating rods 3115 are rotatably connected to the front and rear sides of the inner sides of the two V-shaped rotating rod connecting rods 3114. Clamping plates 3116 are slidably connected to the left and right sides of the outer walls of the front and rear groups of columnar cross bars 317. The outer sides of the two clamping plates 3116 are rotatably connected to the inner bottoms of the left and right groups of V-shaped rotating rods 3115. A plurality of pinch rollers 3117 are slidably connected to the inner bottoms of the two clamping plates 3116. Inner clamping plates 3118 are slidably connected to the two sides of the inner sides of the two clamping plates 3116 on the outer walls of the front and rear groups of columnar cross bars 317. The outer tops of the two inner clamping plates 3118 are rotatably connected to the tops of the inner sides of the left and right groups of V-shaped rotating rods 3115. Both control assemblies 32 include push-pull plates 321. Push rods 322 are fixedly connected to the front and rear sides of the tops of the two push-pull plates 321. The inner sides of the left and right groups of push rods 322 extend to the inner sides of the left and right groups of guide blocks 3112 through the inner walls of the left and right groups of guide blocks 3112, and rotating short rod connecting rods 323 are fixedly connected to the tops. A plurality of rotating short rods 324 are rotatably connected to the tops of the two rotating short rod connecting rods 323. The bottoms of the left and right groups of rotating short rods 324, on the side away from the rotating short rod connecting rods 323, are rotatably connected to the left and right sides of the top of the L-shaped push rod 3113. Inverted L-shaped push-pull blocks 325 are fixedly connected to the front and rear sides of the inner bottoms of the two push-pull plates 321.The inner sides of the left and right groups of inverted L-shaped push-pull blocks 325 extend to the inner sides of the two side plates 311 through two through grooves 314 opened in the two side plates 311. The inner sides of the left and right groups of inverted L-shaped push-pull blocks 325 are fixedly connected to the front and rear sides of the outer sides of the two clamping plates 3116. The positioning mechanism 4 includes two connecting blocks 41. The inner sides of the two connecting blocks 41 are fixedly connected to the middle parts of the outer sides of the rear sides of the two side plates 311. The tops of the two connecting blocks 41 are fixedly connected with a sliding groove rod 42. The outer sides of the two connecting blocks 41 are fixedly connected with cutting control plate connecting rods 43. The rear tops of the two cutting control plate connecting rods 43 are fixedly connected with a laser cutting head control plate 48. The bottom of the laser cutting head control plate 48 is movably connected with a laser cutting head 49. The left and right sides of the inner wall of the sliding groove rod 42 are both slidably connected with expansion and contraction blocks 44. The rear sides of the two expansion and contraction blocks 44 extend to the outer rear sides of the two sliding groove rods 42 and are both fixedly connected with positioning rods 45. The tops of the two expansion and contraction blocks 44 are both rotatably connected with rotating rods 46. One side of the two rotating rods 46 away from the expansion and contraction blocks 44 is rotatably connected with a rotating rod connecting block 47. The inner sides of the two rotating rod connecting blocks 47 are fixedly connected to the rear sides of the outer sides of the two clamping plates 3116;

[0043] When the cable tray needs to be extrusion formed, first place the steel plate to be extruded on the top of the transfer table 2 and transfer it to the inner wall of the device housing 1 through the transfer table 2. During the transfer process, the staff first fold the two sides of the steel plate into a concave shape at a preset angle. At this time, the steel plate continues to be transferred to the inner sides of the two clamping plates 3116 and the inner clamping plate 3118. Then, start the hydraulic push rod 3110. The hydraulic push rod 3110 pushes the L-shaped push rod 3113 to slide on the inner wall of the L-shaped push rod chute 3111. While the L-shaped push rod 3113 is sliding, it drives the rotating short rod connecting rod 323 to move through the rotating short rod 324. While the rotating short rod connecting rod 323 is moving, it drives the push plate 321 to move inward through the push rod 322. While the two push plates 321 are moving, they drive the two inverted L-shaped push blocks 325 to slide on the inner walls of the two through grooves 314. While the two inverted L-shaped push blocks 325 are sliding, they drive the two clamping plates 3116 to slide on the outer walls of the two columnar cross bars 317. While the two clamping plates 3116 are sliding, they drive the inner clamping plate 3118 to slide on the outer walls of the two columnar cross bars 317 through the V-shaped rotating rod 3115. While the two clamping plates 3116 and the two inner clamping plates 3118 are moving, they extrude the steel plate, so that the bent part of the steel plate coincides with the preset angle, thus achieving the expected forming effect. During this process, the design of the V-shaped rotating rod 3115 enables the clamping plates 3116 and the inner clamping plate 3118 to evenly distribute the force when extruding the steel plate, effectively preventing the deformation problem that may occur to metal parts during the extrusion process. In addition, the precise control of the hydraulic push rod 3110 ensures the stability and repeatability of the extrusion process, further improving the forming quality of the cable tray;

[0044] When the steel plate is formed to a certain length, since the steel plate in the form of a long strip is usually long, it needs to be cut after being formed to a certain length. When cutting is required, the hydraulic push rod 3110 is started in the reverse direction at this time. The hydraulic push rod 3110 drives the L-shaped push-pull rod 3113 to slide in the reverse direction. While the L-shaped push-pull rod 3113 slides in the reverse direction, it drives the rotating short rod connecting rod 323 to move in the reverse direction through the rotating short rod 324. While the rotating short rod connecting rod 323 moves in the reverse direction, it drives the push-pull plate 321 to move outward through the push-pull rod 322. While the two push-pull plates 321 move outward, they drive the two inverted L-shaped push-pull blocks 325 to slide in the reverse direction on the inner walls of the two through grooves 314. While the two inverted L-shaped push-pull blocks 325 slide in the reverse direction, they drive the two clamping plates 3116 to slide in the reverse direction on the outer walls of the two columnar cross bars 317. At this time, the two clamping plates 3116 and the two inner clamping plates 3118 release the extrusion of the steel plate, and when the two clamping plates 3116 move outward, they drive the two rotating rod connecting blocks 47 to move outward. While the two rotating rod connecting blocks 47 move outward, they drive the two rotating rods 46 to rotate on the tops of the two expansion and contraction blocks 44. While the two rotating rods 46 rotate, they drive the two expansion and contraction blocks 44 to slide on the inner wall of the chute rod 42 and approach each other. While the two expansion and contraction blocks 44 approach each other, they drive the two positioning rods 45 to approach each other until the inner sides of the two positioning rods 45 are closely attached to both sides of the steel plate, thereby positioning the steel plate and preventing the steel plate from shifting during the cutting process, which affects the cutting effect;

[0045] At this time, the laser cutting head 49 is started. The laser cutting head 49 cuts the steel plate under the drive of the laser cutting head control board 48. Since the positioning rod 45 accurately positions the steel plate, the laser cutting head 49 can accurately cut the steel plate. After cutting is completed, the laser cutting head 49 is turned off, and the hydraulic push rod 3110 is started again to release the extrusion of the steel plate by the two clamping plates 3116 and the two inner clamping plates 3118. Subsequently, the cut steel plate is taken off the transfer table 2, and the extrusion forming process of the cable tray is completed.

[0046] In addition, the present invention also relates to a cold extrusion forming device and method for a cable tray for preventing deformation of metal parts, including the following steps:

[0047] Step 1: Place the steel plate to be processed on the transfer table 2, ensuring that the steel plate is stable and in close contact with the surface of the transfer table 2 to avoid sliding or shifting during transmission;

[0048] Step 2: Start the transfer table 2 to transmit the steel plate along a preset path into the interior of the device housing 1. During the transmission process, the steel plate will gradually enter the working area of the extrusion forming mechanism 3;

[0049] Step 3: After the steel plate completely enters the working area of the extrusion forming mechanism 3, the staff needs to perform preliminary folding or bending on the steel plate according to the preset angle and shape requirements to better adapt to the subsequent extrusion forming process;

[0050] Step 4: Start the hydraulic push rod 3110. Through a series of connecting rods and transmission mechanisms, the force is evenly distributed on both sides of the steel plate, causing it to gradually bend into the expected concave state. During this process, the design of the V-shaped rotating rod 3115 plays a crucial role. It can ensure that the clamping plate 3116 and the inner clamping plate 3118 always maintain a stable included angle during the extrusion process, thus preventing the metal parts from deforming due to uneven stress;

[0051] Step 5: When the steel plate is bent to the expected angle and shape, reverse-start the hydraulic push rod 3110 to release the extrusion of the clamping plate 3116 and the inner clamping plate 3118 on the steel plate. At this time, the positioning mechanism 4 will automatically adjust its position to accurately position the steel plate, preparing for the subsequent cutting process;

[0052] Step 6: Start the laser cutting head 49 and perform precise cutting on the steel plate according to the preset cutting length and shape. After the cutting is completed, turn off the laser cutting head 49 and remove the cut steel plate from the conveyor table 2 to complete the entire extrusion forming process of the cable tray.

[0053] Working principle of the present invention: Place the steel plate to be extruded on the top of the transfer table 2 and transfer it to the inner wall of the device housing 1 through the transfer table 2. During the transfer process, the staff first fold the two sides of the steel plate into a concave state at a preset angle. At this time, the steel plate continues to be transferred to the inner sides of the two clamping plates 3116 and the inner clamping plate 3118. Then, start the hydraulic push rod 3110. The hydraulic push rod 3110 pushes the L-shaped push rod 3113 to slide on the inner wall of the L-shaped push rod chute 3111. While the L-shaped push rod 3113 is sliding, it drives the rotating short rod connecting rod 323 to move through the rotating short rod 324. While the rotating short rod connecting rod 323 is moving, it drives the push-pull plate 321 to move inward through the push rod 322. While the two push-pull plates 321 are moving, they drive the two inverted L-shaped push-pull blocks 325 to slide on the inner walls of the two through grooves 314. While the two inverted L-shaped push-pull blocks 325 are sliding, they drive the two clamping plates 3116 to slide on the outer walls of the two columnar cross bars 317. While the two clamping plates 3116 are sliding, they drive the inner clamping plate 3118 to slide on the outer walls of the two columnar cross bars 317 through the V-shaped rotating rod 3115. While the two clamping plates 3116 and the two inner clamping plates 3118 are moving, they extrude the steel plate. When it is necessary to cut it, reverse-start the hydraulic push rod 3110 at this time. The hydraulic push rod 3110 drives the L-shaped push rod 3113 to slide in the reverse direction. While the L-shaped push rod 3113 is sliding in the reverse direction, it drives the rotating short rod connecting rod 323 to move in the reverse direction through the rotating short rod 324. While the rotating short rod connecting rod 323 is moving in the reverse direction, it drives the push-pull plate 321 to move outward through the push rod 322. While the two push-pull plates 321 are moving outward, they drive the two inverted L-shaped push-pull blocks 325 to slide in the reverse direction on the inner walls of the two through grooves 314. While the two inverted L-shaped push-pull blocks 325 are sliding in the reverse direction, they drive the two clamping plates 3116 to slide in the reverse direction on the outer walls of the two columnar cross bars 317. At this time, the two clamping plates 3116 and the two inner clamping plates 3118 release the extrusion of the steel plate, and while the two clamping plates 3116 move outward, they drive the two rotating rod connecting blocks 47 to move outward. While the two rotating rod connecting blocks 47 are moving outward, they drive the two rotating rods 46 to rotate on the tops of the two expansion and contraction blocks 44. While the two rotating rods 46 are rotating, they drive the two expansion and contraction blocks 44 to slide on the inner wall of the chute rod 42 and approach each other. While the two expansion and contraction blocks 44 are approaching each other, they drive the two positioning rods 45 to approach each other until the inner sides of the two positioning rods 45 are closely attached to the two sides of the steel plate, thereby positioning the steel plate. Then, start the laser cutting head 49, and the laser cutting head 49 cuts the steel plate under the drive of the laser cutting head control board 48.

[0054] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention as claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold extrusion forming device for a cable tray to prevent deformation of metal parts, characterized in that: It includes a device housing (1), at the bottom of the inner wall of the device housing (1) is fixedly connected with a transfer table (2), at the top of the transfer table (2) is fixedly connected with an extrusion forming mechanism (3), and at the rear side of the extrusion forming mechanism (3) is fixedly connected with a positioning mechanism (4); The extrusion forming mechanism (3) includes an extrusion forming assembly (31), and control assemblies (32) are arranged on both the left and right sides of the extrusion forming assembly (31); The extrusion forming assembly (31) includes two side plates (311), on the front and rear sides of the outer sides of the two side plates (311) are fixedly connected with support rods (313), on the front and rear sides of the tops of the two side plates (311) are fixedly connected with vertical rods (312), the tops of the two groups of vertical rods (312) are fixedly connected to the top of the inner wall of the device housing (1), and the inner bottom sides of the two groups of support rods (313) are fixedly connected to the left and right sides of the transfer table (2).

2. The cold extrusion forming device for cable trays to prevent deformation of metal parts according to claim 1, wherein: In the middle of the inner sides of the two side plates (311) are fixedly connected with connecting rods (315), on the front and rear sides of the outer sides of the two side plates (311) are provided with through grooves (314), and on the front and rear sides of the inner sides of the two side plates (311) are fixedly connected with cross plates (318).

3. The cold extrusion forming device for cable trays to prevent deformation of metal parts according to claim 2, characterized in that: On the left and right sides of the bottoms of the two cross plates (318) are fixedly connected with supporting vertical rods (316), the bottoms of the left and right groups of supporting vertical rods (316) are fixedly connected to the front and rear sides of the tops of the two connecting rods (315), and on the inner sides of the left and right groups of supporting vertical rods (316) are fixedly connected with two columnar cross bars (317).

4. The cold extrusion forming device for a cable tray to prevent deformation of metal parts according to claim 2, characterized in that: In the middle of the tops of the two cross plates (318) is fixedly connected with an inverted T-shaped plate (319), at the bottom of the inner wall of the inverted T-shaped plate (319) is fixedly connected with a hydraulic push rod (3110), in the middle of the top of the inverted T-shaped plate (319) is provided with an L-shaped push rod sliding groove (3111), on the four sides of the top of the inverted T-shaped plate (319) are fixedly connected with guide blocks (3112), and an L-shaped push rod (3113) is slidably connected to the inner wall of the L-shaped push rod sliding groove (3111) opened at the top of the inverted T-shaped plate (319), and the front bottom of the L-shaped push rod (3113) is fixedly connected to the front end of the hydraulic push rod (3110).

5. The cold extrusion forming device for cable trays to prevent metal parts from deforming according to claim 4, characterized in that: On the left and right sides of the inner sides of the two cross plates (318) are fixedly connected with V-shaped rotating rod connecting rods (3114), and on the front and rear sides of the inner sides of the two V-shaped rotating rod connecting rods (3114) are rotatably connected with V-shaped rotating rods (3115).

6. A cold extrusion forming device for a cable tray to prevent deformation of metal parts according to claim 3, characterized in that: On the left and right sides of the outer walls of the front and rear groups of the columnar cross bars (317), clamping plates (3116) are slidably connected. The outer sides of the two clamping plates (3116) are rotatably connected to the inner bottoms of the left and right groups of V-shaped rotating rods (3115). A plurality of clamping rollers (3117) are slidably connected to the inner bottoms of the two clamping plates (3116). On the outer walls of the front and rear groups of the columnar cross bars (317), inner clamping plates (3118) are slidably connected to both sides inside the two clamping plates (3116). The outer tops of the two inner clamping plates (3118) are rotatably connected to the tops of the left and right groups of V-shaped rotating rods (3115) inside.

7. A cold extrusion forming device for a cable tray to prevent deformation of metal parts according to claim 1, characterized in that: The two control components (32) both include push-pull plates (321). On the front and rear sides of the tops of the two push-pull plates (321), push-pull rods (322) are fixedly connected. The inner sides of the left and right groups of push-pull rods (322) extend through the inner walls of the left and right groups of guide blocks (3112) to the inner sides of the left and right groups of guide blocks (3112), and rotating short rod connecting rods (323) are fixedly connected to the tops. A plurality of rotating short rods (324) are rotatably connected to the tops of the two rotating short rod connecting rods (323). On the left and right sides of the tops of the L-shaped push-pull rods (3113), the bottoms of the left and right groups of rotating short rods (324) far away from the rotating short rod connecting rods (323) are rotatably connected. On the front and rear sides of the inner bottoms of the two push-pull plates (321), inverted L-shaped push-pull blocks (325) are fixedly connected. The inner sides of the left and right groups of inverted L-shaped push-pull blocks (325) extend through the two through grooves (314) opened in the two side plates (311) to the inner sides of the two side plates (311). The inner sides of the left and right groups of inverted L-shaped push-pull blocks (325) are fixedly connected to the front and rear sides of the outer sides of the two clamping plates (3116).

8. A cold extrusion forming device for a cable tray to prevent deformation of metal parts according to claim 1, characterized in that: The positioning mechanism (4) includes two connecting blocks (41). The inner sides of the two connecting blocks (41) are fixedly connected to the middle parts of the outer sides and the rear sides of the two side plates (311). A sliding groove rod (42) is fixedly connected to the tops of the two connecting blocks (41). Cutting control plate connecting rods (43) are fixedly connected to the outer sides of the two connecting blocks (41). A laser cutting head control plate (48) is fixedly connected to the rear tops of the two cutting control plate connecting rods (43). A laser cutting head (49) is movably connected to the bottom of the laser cutting head control plate (48).

9. The cold extrusion forming device for cable trays to prevent deformation of metal parts according to claim 8, characterized in that: On the left and right sides of the inner wall of the sliding groove rod (42), expansion and contraction blocks (44) are slidably connected. The rear sides of the two expansion and contraction blocks (44) extend to the outer rear sides of the two sliding groove rods (42), and positioning rods (45) are fixedly connected. Rotating rods (46) are rotatably connected to the tops of the two expansion and contraction blocks (44). On the sides of the two rotating rods (46) far away from the expansion and contraction blocks (44), rotating rod connecting blocks (47) are rotatably connected. The inner sides of the two rotating rod connecting blocks (47) are fixedly connected to the rear sides of the outer sides of the two clamping plates (3116).

10. A cold extrusion forming method for a cable tray to prevent metal parts from deforming, characterized in that: A cold extrusion forming device for preventing deformation of metal parts of a cable tray according to any one of claims 1-9, comprising the following steps: Step 1: Place the steel plate to be processed on the transfer table (2), ensuring that the steel plate is stable and in close contact with the surface of the transfer table (2) to avoid sliding or deviation during transmission; Step 2: Start the transfer table (2) and transmit the steel plate along a preset path into the interior of the device housing (1). During transmission, the steel plate will gradually enter the working area of the extrusion forming mechanism (3); Step 3: After the steel plate completely enters the working area of the extrusion forming mechanism (3), the staff needs to perform preliminary folding or bending on the steel plate according to the preset angle and shape requirements to better adapt to the subsequent extrusion forming process; Step 4: Start the hydraulic push rod (3110). Through a series of connecting rods and transmission mechanisms, the force is evenly distributed on both sides of the steel plate, causing it to gradually bend into the expected concave state. During this process, the design of the V-shaped rotating rod (3115) plays a crucial role. It can ensure that the clamping plate (3116) and the inner clamping plate (3118) always maintain a stable angle during extrusion, thus preventing the metal parts from deforming due to uneven force; Step 5: When the steel plate is bent to the expected angle and shape, reverse-start the hydraulic push rod (3110) to release the extrusion of the clamping plate (3116) and the inner clamping plate (3118) on the steel plate. At this time, the positioning mechanism (4) will automatically adjust its position to accurately position the steel plate and prepare for the subsequent cutting process; Step 6: Start the laser cutting head (49) and perform precise cutting on the steel plate according to the preset cutting length and shape. After cutting is completed, turn off the laser cutting head (49) and remove the cut steel plate from the transfer table (2) to complete the entire extrusion forming process of the cable tray.

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