A forming device for mounting rail production

Abstract

The application discloses a forming device for mounting rail production and relates to the technical field of mounting rail production.The forming device comprises a roller press base and a rack fixedly installed above the roller press base.A plurality of driving mechanisms are uniformly distributed on the top of the rack along the transmission direction of the mounting rail.The plurality of driving mechanisms are provided with adjusting mechanisms for adjusting the width of a mounting rail forming die through a series of connecting rods.The width of the whole movable die can be adjusted through the adjusting mechanism.The driving mechanisms can drive the side dies to move left and right through the fixed ring and the connecting column, realize the synchronous movement of all the side dies on the device, and uniformly install all the side dies through the series of connecting rods, so that all the movable dies located along the transmission direction of the mounting rail are on a unified axis, the movable dies can be uniformly adjusted when the position of the fixed die and the movable die is corrected, and the uniform installation of the movable dies on the series of connecting rods can reduce the occurrence of the single deviation of the side dies.

Description

Technical Field

[0001] This application relates to the field of mounting rail manufacturing technology, and in particular to a forming apparatus for mounting rail manufacturing. Background Technology

[0002] As a basic structural component, mounting rails are commonly used in applications such as internal assembly of electrical distribution boxes. Currently, the roll forming of mounting rails typically uses metal roll forming machines, which are metal material processing and forming equipment. These machines use one or more molds to roll metal raw materials to form the desired product. With the acceleration of industrialization, the market demands increasingly higher precision, strength, and production efficiency for mounting rails. Traditional manufacturing methods can no longer meet the needs of large-scale, highly consistent production.

[0003] A search revealed that, for example, a Chinese patent document discloses a roller press for producing drawer slides (publication number: CN216606931U), but it still has the following shortcomings in actual use:

[0004] The roller press of the aforementioned patent uses its own adjustment structure for each set of moving dies. When one adjustment structure deviates, it will affect the roller pressing quality of the entire production line. Moreover, during maintenance, each one needs to be checked, resulting in low production efficiency. Furthermore, when producing mounting rails of different widths, due to the fixed nature of the moving dies, it is necessary to purchase new production lines, expand production space, and increase production costs. Utility Model Content

[0005] To address the issues of existing mounting rail forming devices requiring individual adjustment of moving molds and limited production specifications, this application provides a forming device for mounting rail production.

[0006] The forming device for producing mounting rails provided in this application adopts the following technical solution:

[0007] A forming device for producing mounting rails includes a roller press base and a frame fixedly installed above the roller press base. Several drive mechanisms are evenly distributed on the top of the frame along the conveying direction of the mounting rail.

[0008] Several of the aforementioned drive mechanisms are equipped with an adjustment mechanism for adjusting the width of the mounting rail forming mold via a series rod;

[0009] Each of the aforementioned adjustment mechanisms includes a transmission rod fixedly connected to the bottom of the connecting rod. A fixed ring is fixedly connected to the bottom end of each transmission rod. A connecting ring is rotatably provided on the inner wall of the fixed ring via a bearing. A transmission shaft is slidably arranged between the connecting rings and mutually limit each other. An extension cylinder for roll forming and a side mold are symmetrically arranged between the connecting rings on the transmission shaft. A central mold fixedly connected to the transmission shaft is fitted between two of the side molds. The side molds and the central mold constitute a moving mold. The outer diameter of the moving mold of each of the adjustment mechanisms is different.

[0010] By adopting the above technical solution, the simultaneous operation of all servo motors can change the unified position of all moving dies within the device, achieving uniformity of the adjustment structure. Furthermore, by connecting each moving die in series through the drive mechanism, the control force on each individual moving die is increased, making it difficult for a single moving die to deviate individually. This achieves stability of the roller pressing moving dies, reduces the error rate, and improves molding quality. Moreover, the uniformity of the moving dies connects points into lines, unifying the axis of the moving dies. During the measurement and correction process using the centering instrument, only the axis of the connecting rod needs to be aligned, solving the problem of time-consuming and inefficient operation of individual correction of each moving die. The setting of the adjustment mechanism makes the moving dies as a whole adjustable, increasing the range of mounting rail specifications that the moving dies can produce. A single production line can produce more mounting rail specifications, improving production efficiency and reducing production costs.

[0011] Preferably, each of the driving mechanisms includes a mounting plate fixed to the left and right sides of the top of the frame. A servo motor is fixedly connected to one of the mounting plates. A bidirectional ball screw is fixedly mounted on the output end of the servo motor via a coupling. A ball slider is movably arranged on the bidirectional ball screw and fixedly connected to a connecting column. A limiting rod is fixedly arranged parallel to the bidirectional ball screw between the axially symmetrical mounting plates. The connecting column is movably penetrated by the limiting rod, and the bottom end of the connecting column is fixedly connected to the connecting rod.

[0012] By adopting the above technical solution, when the servo motor drives the bidirectional ball screw to rotate, the series rod connects each connecting column. Through the fixed connection between the connecting column and the outer surface of the ball slider, the connecting column does not rotate with the bidirectional ball screw. The limit rod passes through the connecting column and its two ends are fixedly connected to the mounting plate, which increases the limiting relationship of the connecting column to prevent it from rotating with the bidirectional ball screw and improves the stability of the moving connecting column.

[0013] Preferably, the drive shaft is integrally formed with symmetrically arranged protrusions, and the connecting ring, the extension cylinder and the side mold are all provided with limiting groove three, limiting groove two and limiting groove one that fit into the protrusions.

[0014] By adopting the above technical solution, the limiting groove and the protrusion limit the connecting ring, the extension cylinder and the side mold can slide on the transmission shaft. When the transmission shaft is subjected to force and rotates, the limiting can drive the connecting ring, the extension cylinder and the side mold to rotate, so that the connecting ring, the extension cylinder and the side mold have both rotation and sliding motion trajectories.

[0015] Preferably, a fixing plate that is fixedly connected to the drive shaft is integrally formed at the center of the inner wall of the central mold, and cavities that are adapted to the central mold are respectively opened on the left and right sides of the fixing plate inside the central mold.

[0016] By adopting the above technical solution, the cavity inside the central mold can be used for the side mold to slide within it, allowing the moving mold to reduce its overall width on the original basis, and further increasing the number of specifications that the moving mold can change.

[0017] Preferably, in the molding device for producing mounting rails, the extension cylinder is fixedly connected between the side mold and the connecting ring.

[0018] By adopting the above technical solution, the extension cylinder increases the distance between the fixed ring and the side mold, thus avoiding contact and wear between the fixed ring and the rotating side mold.

[0019] Preferably, the outer diameter of the fixing ring is smaller than the maximum outer diameter of the side mold.

[0020] By adopting the above technical solutions, the outer surface of the fixing ring will not come into contact with the raw material of the mounting rail or the fixed mold when the side mold rotates, thus avoiding wear.

[0021] Preferably, several of the drive shafts are rotatably connected between the two frames.

[0022] By adopting the above technical solution, the drive shaft is set between the two frames, which enables the drive shaft to connect with the drive and transmission parts in the roller press base. This allows the drive and transmission parts located inside the frame in the roller press base to drive the drive shaft to rotate, thereby rotating the moving mold and causing the mounting rail to be rolled and formed.

[0023] Preferably, a magnetic base for a centering instrument is fixedly installed on the top of each of the two connecting rods near the front end.

[0024] By adopting the above technical solutions, the magnetic base of the alignment instrument facilitates the installation of one of the receiving targets of the external alignment instrument, thereby making it easier to perform alignment detection between the axis where the fixed mold is located and the axis where the moving mold is located, and improving the calibration efficiency.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. By adjusting the sliding and limiting relationship between the connecting ring, extension cylinder, side mold and drive shaft in the mechanism, the connecting ring, extension cylinder and side mold can all slide on the drive shaft under the control of the drive mechanism, and can also rotate with the drive shaft to realize the width change of the moving mold. The adjustable width of the moving mold allows a single production line to produce a wider variety of mounting rail specifications and improves production efficiency.

[0027] 2. The width of the moving mold as a whole is adjustable through the adjustment mechanism. The fixed ring and the connecting column are connected by bearings and connecting rings, so that the drive shaft can drive the side molds and the center mold to rotate. At the same time, the drive mechanism can drive the side molds to move left and right through the fixed ring and connecting column, so as to realize the synchronous movement of all side molds on the device. The connecting rod uniformly installs all side molds, so that all moving molds located in the transmission direction of the installation rail are on the same axis. This makes it easier to uniformly adjust the moving molds when correcting the position of the fixed mold and the moving mold, thereby improving production efficiency. Moreover, the uniform installation of the moving molds on the connecting rod can reduce the occurrence of individual side mold misalignment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this application;

[0029] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0030] Figure 3 This is a schematic diagram of the servo motor and bidirectional ball screw mounted between the fixed plate in this application.

[0031] Figure 4 This is a schematic diagram of the drive mechanism portion of this application;

[0032] Figure 5 This is a schematic diagram of the regulating mechanism portion of this application;

[0033] Figure 6 This is a cross-sectional view of the side mold and the center mold of this application being mounted on the drive shaft;

[0034] Figure 7 This is a schematic diagram of the shape of the limiting groove 1 opened in the side mold of this application.

[0035] Reference numerals in the attached diagram: 1. Roller press base; 2. Frame; 3. Mounting plate; 4. Servo motor; 5. Bidirectional ball screw; 6. Ball slider; 7. Connecting column; 8. Connecting rod; 9. Magnetic base of the centering instrument;

[0036] 10. Limiting rod; 11. Adjusting mechanism; 1101. Drive shaft; 1102. Connecting ring; 1103. Bearing; 1104. Fixing ring; 1105. Extension tube; 1106. Side mold; 1107. Center mold;

[0037] 1108. Fixing plate; 1109. Limiting groove one; 1110. Protrusion; 1111. Limiting groove two; 1112. Limiting groove three; 1113. Transmission rod. Detailed Implementation

[0038] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0039] This application discloses a forming apparatus for producing mounting rails.

[0040] Reference Figure 1 , Figure 2 A forming device for producing mounting rails includes a roller press base 1 and a frame 2 welded above the roller press base 1. The roller press base 1 is one structure of the roller press. The roller press base is equipped with a feeding system, a cutting system, a hydraulic and pneumatic system, and an electrical control system, all of which are existing technologies. The fixed mold of the roller press base 1 is a readily replaceable mold located on the support assembly, also existing technology. The technology used is the quick mold changing structure for roller forming machines published in CN214976669U. The frame 2 is an outer shell, housing the motor, synchronous pulley, and synchronous belt, among other power and transmission systems, of the roller press. The mounting rail transmission direction is... Figure 1 In the front-to-back direction, the magnetic base 9 of the centering instrument is fixed to the top of the connecting rod 8 near the front end by bolts for the installation of the centering instrument receiving target.

[0041] Reference Figure 3 , Figure 4Several drive mechanisms are evenly arranged on the top of the two frames 2 along the front-to-back direction. Each drive mechanism includes a mounting plate 3 fixed to the top of the frame 2 by bolts. The mounting plates 3 are arranged in pairs, each pair symmetrically mounted on the top of the frame 2. One mounting plate 3 in each pair is fixed near the top to the mounting end of a servo motor 4. The servo motor 4 is a MINASA6 model, and its encoder is fixed to its rear end. The controller is fixed inside the main unit on the left side of the roller press base 1. The encoder provides feedback on the current displacement of the servo motor 4, and the controller continuously compares the target position with the actual position to precisely adjust the operation of the servo motor 4. The output end of the servo motor 4 is fixedly connected to a bidirectional ball screw 5 via a coupling. The coupling is fixed to the output end of the servo motor 4 via a shrink sleeve and one end of the bidirectional ball screw 5. The device is movably mounted on the mounting plate 3 and passes through the circular hole at the output end of the servo motor 4. Its outer surface is flush with the right side of the mounting plate 3 on the left side, so it will not interfere with the movement of the ball slider 6. Nuts are threaded onto the threaded grooves at both ends of the bidirectional ball screw 5. The ball slider 6 is bolted to the nuts on the bidirectional ball screw 5 via a flange. The flange is provided with a locating pin to ensure coaxiality ≤0.02mm. The locating pin on the flange and the pin hole on the ball slider 6 are fitted with a small clearance (clearance 0.003-0.008mm). The end of the bidirectional ball screw 5 away from the servo motor 4 is fixed to the inner ring of the bearing. The outer ring of the bearing is embedded and fixed on the mounting plate 3. It should be noted that the bearing includes an outer ring, an inner ring, balls, etc., and the above bearing is a ball bearing.

[0042] When adjusting the width of the moving mold, the required distance is input through the main unit of the roller press base 1. The controller inside the main unit, in conjunction with the encoder, drives the servo motor 4 to run. The servo motor 4 drives the bidirectional ball screw 5 to rotate. The nut of the bidirectional ball screw 5 generates thread transmission, and the two ball sliders 6 move synchronously in opposite directions with the nut.

[0043] The outer surface of the ball slider 6 is welded with connecting posts 7. Two connecting posts 7 located on the same bidirectional ball screw 5 are provided with round holes. The limiting rod 10 passes through the round holes, so that the connecting post 7 can slide on the limiting rod 10. A series rod 8 is welded to the bottom of the connecting post 7. The series rod 8 is a horizontally placed square rod. Several transmission rods 1113 evenly distributed along the transmission direction of the installation rail are fixed to the bottom of the series rod 8 by bolts. The transmission rods 1113, series rods 8 and connecting posts 7 are all made of carbon steel.

[0044] The connecting column 7 moves linearly with the ball slider 6. The limiting rod 10 limits the trajectory of the connecting column 7 during its movement. The limiting rod 10 passes between the two connecting columns 7, restricting the linear movement trajectory of the connecting column 7 to the fixed direction of the limiting rod 10. The two connecting rods 8 move linearly to the left and right with the connecting column 7. The connecting rods 8 are horizontally placed square rods. The transmission rod 1113 moves linearly to the left and right with the connecting rods 8.

[0045] Reference Figures 5-7 The bottom end of the connecting rod 8 is provided with several adjusting mechanisms 11. The adjusting mechanism 11 includes a transmission rod 1113 fixed to the bottom of the connecting rod 8. The bottom end of each transmission rod is fixed with a fixing ring 1104 by bolts. The bearing 1103 inside the fixing ring 1104 is a needle roller bearing. The bearing 1103 includes an inner ring, an outer ring, and a needle roller assembly with a cage. The inner wall of the fixing ring 1104 is interference-fitted with the outer ring of the bearing 1103. The inner ring of the bearing 1103 is interference-fitted with the outer wall of the connecting ring 1102. The two connecting rings 1102 are slidably connected with a transmission shaft 1101. The transmission shaft 1101 is connected to the synchronous pulley in the frame 2 via a rotating shaft. One end of the rotating shaft is welded to the transmission shaft 1101, and the other end of the rotating shaft is keyed to the synchronous pulley in the frame 2. The two connecting rings 1102 are integrally formed with an extension cylinder 1105 on the opposite side. The two extension cylinders 1105 are fixed on the opposite side. There is a side mold 1106. The end of the side mold 1106 away from the extension cylinder 1105 is respectively fitted into the cavities opened at both ends of the central mold 1107. A fixing plate 1108 is integrally formed at the center of the inner wall of the central mold 1107. The fixing plate 1108 is welded to the drive shaft 1101. The side mold 1106 is a stepped shaft shape. The side mold 1106 is composed of a first ring body and a second ring body. The outer diameter of the first ring body is smaller than that of the second ring body. The outer diameter of the fixing ring 1104 is smaller than that of the second ring body. The first ring body in the side mold 1106 abuts against the cavities on both sides of the inner wall of the central mold. The central mold 1107 and the two side molds 1106 together constitute the moving mold. All moving molds are arranged along the transmission direction of the mounting rail, and the outer diameter of each moving mold gradually increases with the output direction of the mounting rail. The overall width of the moving mold is a minimum of 15mm and a maximum of 75mm.

[0046] The fixed ring 1104 moves with the transmission rod 1113, the bearing 1103 moves with the fixed ring 1104, the connecting ring 1102 moves with the bearing 1103 on the transmission shaft 1101, the extension cylinder 1105 moves with the connecting ring 1102 on the transmission shaft 1101, and the side mold 1106 moves with the extension cylinder 1105 on the transmission shaft 1101. The first ring bodies of the two side molds 1106 can be embedded into the two side cavities of the central mold 1107, thereby reducing the width of the moving mold based on the initial width.

[0047] The inner walls of the connecting ring 1102, the extension tube 1105, and the side mold 1106 are respectively provided with limiting groove 3 1112, limiting groove 2 1111, and limiting groove 1109. Two protrusions 1110 are integrally formed on the drive shaft 1101. The limiting groove 3 1112, limiting groove 2 1111, and limiting groove 1109 are all fitted with the protrusions 1110. The side mold 1106 and the center mold 1107 are both made of Cr12MoV steel, which reaches a hardness of HRC60 after vacuum quenching (1020℃) + deep cryogenic treatment (-196℃). The surface is plated with hard chrome (layer thickness 0.05mm) to reduce the coefficient of friction. Solid lubricant is filled between the limiting groove 3 1112, limiting groove 2 1111, and limiting groove 1109 and the protrusions 1110.

[0048] During the operation of the roller press base 1, its drive and transmission system located within the frame 2 operates. The motor drives the synchronous pulley fixedly connected to its output end to rotate. The synchronous belt transmits the rotation to other synchronous pulleys. The rotating shaft rotates with the synchronous pulley, and the transmission shaft 1101 rotates with the rotating shaft. The connecting ring 1102 rotates with the transmission shaft 1101 through the limiting groove three 1112 and the protrusion 1110. The extension cylinder 1105 and the side mold 1106 rotate with the connecting ring 1102. Since the limiting groove two 1111 and the limiting groove one 1109 opened on the extension cylinder 1105 and the side mold 1106 respectively are engaged and limited with the protrusion 1110, the extension cylinder 1105 and the side mold 1106 rotate with the transmission shaft 1101. The center mold 1107 rotates with the transmission shaft 1101 through the fixing plate 1108, realizing the rotation of the entire moving mold to roll-form the mounting rail.

[0049] The implementation principle of the molding device for producing mounting rails in this application embodiment is as follows: When it is necessary to adjust the specifications of the mounting rails to be produced, the fixed mold is disassembled and replaced with a fixed mold of the required specifications. When adjusting the width of the moving mold, the servo motor 4 is run, and the servo motor 4 drives the bidirectional ball screw 5 to rotate. The ball slider 6 moves with the nut on the bidirectional ball screw 5, and the connecting column 7 moves with the ball slider 6. The limiting rod 10 plays a role in limiting the trajectory of the connecting column 7 during its movement. The two series rods 8 move in opposite directions or relative left and right linear motions with the connecting column 7, thus transmitting power. Rod 1113 moves linearly left and right with the connecting rod 8. Fixed ring 1104 moves with transmission rod 1113. Bearing 1103 moves with fixed ring 1104. Connecting ring 1102 moves on transmission shaft 1101 with bearing 1103. Extension cylinder 1105 moves on transmission shaft 1101 with connecting ring 1102. Side mold 1106 moves on transmission shaft 1101 with extension cylinder 1105. The first ring bodies of the two side molds 1106 can be embedded in the cavities on both sides of the central mold 1107, thereby reducing the width of the moving mold based on the initial width.

[0050] During the operation of the roller press base 1, the drive and transmission system located in the frame 2 operates. The drive shaft 1101 rotates with the rotating shaft, the connecting ring 1102 rotates with the drive shaft 1101, the extension cylinder 1105 and the side mold 1106 rotate with the connecting ring 1102, and the center mold 1107 rotates with the drive shaft 1101, so as to realize the rotation of the moving mold as a whole to roll the mounting rail.

[0051] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A forming apparatus for producing mounting rails, comprising a roller press base (1) and a frame (2) welded to both sides of the top of the roller press base (1), characterized in that: The top of the frame (2) has several drive mechanisms evenly distributed along the transmission direction of the mounting rail; Several of the aforementioned drive mechanisms are provided with an adjustment mechanism (11) for adjusting the width of the mounting rail forming mold via a series rod (8); Each of the several adjustment mechanisms (11) includes a transmission rod (1113) fixed to the bottom of the connecting rod (8). A fixed ring (1104) is fixed to the bottom end of each transmission rod (1113). A connecting ring (1102) is rotatably provided on the inner wall of the fixed ring (1104) through a bearing (1103). A transmission shaft (1101) is slidably provided between the connecting rings (1102) and mutually limited. An extension cylinder (1105) for roll forming and a side mold (1106) are symmetrically slidably provided between the connecting rings (1102) of the transmission shaft (1101). A center mold (1107) fixed to the transmission shaft (1101) is fitted between the two side molds (1106). The side molds (1106) and the center mold (1107) constitute a moving mold. The outer diameter of the moving mold of each adjustment mechanism (11) is different.

2. The forming device for producing mounting rails according to claim 1, characterized in that: Each of the aforementioned drive mechanisms includes mounting plates (3) fixed on the left and right sides of the top of the frame (2). A servo motor (4) is fixedly connected to one of the mounting plates (3). A bidirectional ball screw (5) is fixedly mounted on the output end of the servo motor (4) through a coupling. A ball slider (6) is movably arranged on the bidirectional ball screw (5) and fixedly connected to the connecting column (7). A limiting rod (10) is fixedly arranged parallel to the bidirectional ball screw (5) between the axially symmetrical mounting plates (3). The connecting column (7) is movably penetrated by the limiting rod (10) and the bottom end of the connecting column (7) is fixedly connected to the connecting rod (8).

3. The forming device for producing mounting rails according to claim 2, characterized in that: The drive shaft (1101) is integrally formed with symmetrically arranged protrusions (1110), and the connecting ring (1102), the extension tube (1105) and the side mold (1106) are all provided with limiting groove three (1112), limiting groove two (1111) and limiting groove one (1109) that fit into the protrusions (1110).

4. The forming device for producing mounting rails according to claim 1, characterized in that: A fixing plate (1108) that is fixedly connected to the drive shaft (1101) is integrally formed on the inner wall of the central mold (1107), and cavities that are adapted to the side molds (1106) are respectively opened on the left and right sides of the fixing plate (1108) inside the central mold (1107).

5. The forming device for producing mounting rails according to claim 1, characterized in that: The extension tube (1105) is fixedly connected between the side mold (1106) and the connecting ring (1102).

6. The forming device for producing mounting rails according to claim 1, characterized in that: The outer diameter of the fixed ring (1104) is smaller than the maximum outer diameter of the side mold (1106).

7. The forming device for producing mounting rails according to claim 1, characterized in that: Several of the drive shafts (1101) are rotatably connected between the two frames (2).

8. The forming device for producing mounting rails according to claim 1, characterized in that: A magnetic base (9) for a centering instrument is fixedly installed on the top of each of the two connecting rods (8) near the front end.

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