Automatic rolling mill

Abstract

This utility model discloses an automatic rolling mill, including a rolling mill frame and a support frame. The rolling mill frame is equipped with two rolling devices, two transmission devices, and a rolling drive motor. The upper ends of the two transmission devices are connected to the power output end of the rolling motor, and the lower ends are connected to the upper parts of the two rolling devices. The support frame is equipped with a rolling push mechanism. The left rolling device includes a left rolling seat and a left rolling wheel. The left end of the left rolling seat is fixed to the left side of the rolling mill frame by an adjustable locking structure. The lower end of the left transmission device is connected to the center of the left rolling wheel. The right rolling device includes a right rolling seat and a right rolling wheel. The rolling push mechanism pushes the right rolling seat to slide along a guide rail. The rolling drive motor, in conjunction with the transmission devices, drives the corresponding rolling device to rotate and roll the product. This utility model can achieve high-precision rolling forming of products of different sizes and specifications, and different parts of the product, improving the product's fatigue resistance, strength, and service life.

Description

Technical Field

[0001] This utility model relates to the field of mechanical device technology, and in particular to an automatic rolling press. Background Technology

[0002] A mating component is used in the steering system of an automobile, consisting of a top metal ball and a lower screw. The metal ball and screw are spot-welded together, but the strength, fatigue resistance, and surface finish of the weld are insufficient. Therefore, roll forming is required to meet these requirements. Roll forming is a chipless machining process that applies pressure to the workpiece surface using a specific rolling tool. At room temperature, the plastic deformation of the metal is utilized to smooth out the microscopic irregularities on the workpiece surface, thereby altering its surface structure, mechanical properties, shape, and dimensions. Existing roll forming machines are horizontal and suitable for relatively long rod-shaped workpieces, such as the Chinese utility model patent "A Roll Forming Machine" (Publication No. CN205309690U). The purpose of this utility model is to provide a roll forming machine for rolling the welded area of ​​the aforementioned mating component. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide an automatic rolling mill that can achieve high-precision rolling forming of products of different sizes and specifications, as well as different parts of the products, thereby improving the fatigue resistance, strength and service life of the products.

[0004] To solve the above-mentioned technical problems, the present invention provides an automatic rolling machine, which includes a rolling machine frame and a support frame. The rolling machine frame is equipped with two rolling devices, two transmission devices, and a rolling drive motor. The upper ends of the two transmission devices are connected to the power output end of the rolling motor, and the lower ends are connected to the upper parts of the two rolling devices. The support frame is equipped with a rolling push mechanism.

[0005] Two rolling devices are defined as a left rolling device and a right rolling device, and two transmission devices are defined as a left transmission device and a right transmission device. The left rolling device includes a left rolling seat and a left rolling wheel. The left rolling seat is mounted on the guide rail of the rolling machine frame and can slide. The left end of the left rolling seat is fixed to the left side of the rolling machine frame by an adjustable locking structure. The lower end of the left transmission device is connected to the center of the left rolling wheel. The right rolling device includes a right rolling seat and a right rolling wheel. The power output end of the rolling pushing mechanism is fixed to the right rolling seat. The right rolling seat is mounted on the guide rail of the rolling machine frame and can slide. The rolling pushing mechanism pushes the right rolling seat to slide along the guide rail.

[0006] The product is rolled by rotating the corresponding rolling device through a rolling drive motor and transmission device.

[0007] Furthermore, the power output end of the rolling drive motor is equipped with a central gear; each of the transmission devices includes a side gear and a universal joint coupling, the upper end of the universal joint coupling is connected to the side gear, and the lower end of the universal joint coupling is connected to the left rolling wheel or the right rolling wheel; the central gear meshes with the two side gears.

[0008] Furthermore, the universal joint coupling is a double integral fork-head cross-shaft universal joint coupling.

[0009] Furthermore, the rolling pushing mechanism includes a rolling drive electric cylinder, the power output end of which is connected to the right rolling seat through a ball screw structure. The rolling drive electric cylinder, in conjunction with the ball screw structure, drives the right rolling seat to move along the guide rail.

[0010] Furthermore, the locking structure includes a locking bolt and a locking nut. The right end of the locking bolt passes through the rolling mill frame and is fixed to the left side of the left rolling seat. The locking nut is fitted onto the locking bolt. By tightening the locking bolt, the left rolling seat is moved along the guide rail.

[0011] Furthermore, bearing structures are provided between the left rolling seat and the left rolling roller, and between the right rolling seat and the right rolling roller.

[0012] The beneficial effects of this utility model are:

[0013] This utility model has an ingenious structural design, which can realize high-precision roll forming of products of different sizes and different parts of the products, thereby improving the fatigue resistance, strength and service life of the products.

[0014] Using a single rolling drive motor to drive two rolling devices to rotate and roll the product, compared to using two independent power units to drive them separately, can ensure that the two rolling devices rotate completely synchronously, avoiding uneven friction on both sides of the product caused by asynchrony, which would ultimately lead to uneven rolling and ensure the final rolling effect.

[0015] The position of the left rolling device on the guide rail can be adjusted by a locking structure. The right rolling device is adjusted by a rolling drive electric cylinder in conjunction with a ball screw structure, which has high control precision and is more stable. If a hydraulic drive is used, the pump pressure is difficult to keep constant, which causes the right rolling device to not be in the ideal position, or even to shift and sway to the left and right. The control precision is insufficient, which will ultimately affect the rolling effect on the product.

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second structural schematic diagram of this utility model;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] The parts in the attached diagram are labeled as follows:

[0021] Roller 4, Roller frame 41, Guide rail 411, Support frame 42, Roller drive motor 43, Center gear 431, Left rolling device 44, Left rolling seat 441, Left rolling wheel 442, Locking structure 443, Locking bolt 4431, Locking nut 4432, Bearing structure 444, Right rolling device 45, Right rolling seat 451, Right rolling wheel 452, Left transmission device 46, Side gear 461, Universal joint coupling 462, Right transmission device 47, Roller pushing mechanism 48, Roller drive electric cylinder 481, Ball screw structure 482;

[0022] Product 10. Detailed Implementation

[0023] The following specific embodiments illustrate the detailed implementation of this utility model. Those skilled in the art can easily understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope disclosed in this utility model.

[0024] The descriptions of positions such as up, down, left, and right in this embodiment are based on the orientation in the accompanying drawings, have no special meaning, and are not intended to limit the scope of protection of this utility model.

[0025] Example: An automatic rolling press, such as Figures 1 to 3 As shown, the rolling mill 4 includes a rolling mill frame 41 and a support frame 42. The rolling mill frame is equipped with two rolling devices, two transmission devices, and a rolling drive motor 43. The upper ends of the two transmission devices are connected to the power output end of the rolling motor, and the lower ends are connected to the upper part of the two rolling devices. The support frame is equipped with a rolling push mechanism 48.

[0026] Two rolling devices are defined as a left rolling device 44 and a right rolling device 45, and two transmission devices are defined as a left transmission device 46 and a right transmission device 47. The left rolling device 44 includes a left rolling seat 441 and a left rolling wheel 442. The left rolling seat is mounted on the guide rail 411 of the rolling machine frame and can slide. The left end of the left rolling seat is fixed to the left side of the rolling machine frame by an adjustable locking structure 443. The lower end of the left transmission device is connected to the center of the left rolling wheel. The right rolling device 45 includes a right rolling seat 451 and a right rolling wheel 452. The power output end of the rolling pushing mechanism is fixed to the right rolling seat. The right rolling seat is mounted on the guide rail of the rolling machine frame and can slide. The rolling pushing mechanism pushes the right rolling seat to slide along the guide rail.

[0027] The product 10 is rolled by a rolling drive motor and a transmission device that drives the corresponding rolling device to rotate.

[0028] In this embodiment, a central gear 431 is installed at the power output end of the rolling drive motor; each of the transmission devices includes a side gear 461 and a universal joint coupling 462, the upper end of the universal joint coupling is connected to the side gear, and the lower end of the universal joint coupling is connected to the left rolling wheel or the right rolling wheel; the central gear meshes with the two side gears.

[0029] In this embodiment, the universal joint coupling is a double-jointed integral fork-head cross-shaft universal joint coupling. Because the positions of the left and right rolling devices on the guide rail need to be adjusted appropriately for different product specifications, the aforementioned universal joint coupling is used to ensure that the left and right rolling rollers can still rotate smoothly under the above conditions when driven by the same rolling drive motor. Since the universal joint coupling has the ability to arbitrarily change angles within a certain range and has adaptive capability, even after slight changes in the positions of the left and right rolling devices, the left and right rolling rollers can still rotate smoothly to roll the product.

[0030] In this embodiment, the rolling pushing mechanism 48 includes a rolling drive electric cylinder 481. The power output end of the rolling drive electric cylinder is connected to the right rolling seat through a ball screw structure 482. The rolling drive electric cylinder, in conjunction with the ball screw structure, drives the right rolling seat to move along the guide rail.

[0031] In this embodiment, the locking structure 443 includes a locking bolt 4431 and a locking nut 4432. The right end of the locking bolt passes through the rolling mill frame and is fixed to the left side of the left rolling seat. The locking nut is fitted onto the locking bolt. Tightening the locking bolt moves the left rolling seat along the guide rail. This allows for adjustment of the position of the left rolling device according to the product's size and specifications and the position to be rolled, ensuring the final rolling effect.

[0032] In this embodiment, bearing structures 444 are provided between the left rolling bearing seat and the left rolling roller, and between the right rolling bearing seat and the right rolling roller. This increases the smoothness of the rotation of the left and right rolling rollers.

[0033] The working principle and process of this utility model:

[0034] The product is clamped by other clamping fixtures. Based on the product's dimensions and the area to be rolled, the position of the left rolling device on the guide rail is adjusted. After adjustment, the locking bolts and nuts are tightened. Simultaneously, the rolling push mechanism pushes the right rolling seat to the left to the desired position (the positions corresponding to different product specifications can be input into the control system after multiple adjustments; the control system then controls the rolling drive cylinder in conjunction with the ball screw structure to move the right rolling seat to the appropriate position). Then, the rolling drive motor drives the central gear to rotate, meshing with the gears on both sides. The side gears transmit the rotational motion to the universal coupling, which in turn transmits it to the left and right rolling rollers, causing them to rotate and clamp the product. The product is then rolled. During this process, the product also moves accordingly; for example, if the left rolling roller rotates counter-clockwise, the product rotates clockwise, and vice versa.

[0035] The above description is merely an embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. An automatic rolling machine characterized by: The rolling mill (4) includes a rolling mill frame (41) and a support frame (42). The rolling mill frame is equipped with two rolling devices, two transmission devices and a rolling drive motor (43). The upper ends of the two transmission devices are connected to the power output end of the rolling motor, and the lower ends are connected to the upper part of the two rolling devices. The support frame is equipped with a rolling push mechanism (48). Two rolling devices are defined as a left rolling device (44) and a right rolling device (45), and two transmission devices are defined as a left transmission device (46) and a right transmission device (47). The left rolling device (44) includes a left rolling seat (441) and a left rolling wheel (442). The left rolling seat is mounted on the guide rail (411) of the rolling machine frame and can slide. The left end of the left rolling seat is fixed to the left side of the rolling machine frame by an adjustable locking structure (443). The lower end of the left transmission device is connected to the center of the left rolling wheel. The right rolling device (45) includes a right rolling seat (451) and a right rolling wheel (452). The power output end of the rolling pushing mechanism is fixed on the right rolling seat. The right rolling seat is mounted on the guide rail of the rolling machine frame and can slide. The rolling pushing mechanism pushes the right rolling seat to slide along the guide rail. The product (10) is rolled by a rolling drive motor in conjunction with a transmission device to drive the corresponding rolling device to rotate.

2. The automatic rolling machine according to claim 1, characterized in that: The power output end of the rolling drive motor is equipped with a central gear (431); each of the transmission devices includes a side gear (461) and a universal joint coupling (462), the upper end of the universal joint coupling is connected to the side gear, and the lower end of the universal joint coupling is connected to the left rolling wheel or the right rolling wheel; the central gear meshes with the two side gears.

3. The automatic rolling machine according to claim 2, characterized in that: The universal joint coupling is a double integral fork-head cross-shaft type universal joint coupling.

4. The automatic rolling machine according to claim 1, characterized in that: The rolling push mechanism (48) includes a rolling drive electric cylinder (481). The power output end of the rolling drive electric cylinder is connected to the right rolling seat through a ball screw structure (482). The rolling drive electric cylinder, in conjunction with the ball screw structure, drives the right rolling seat to move along the guide rail.

5. The automatic rolling machine according to claim 1, characterized in that: The locking structure (443) includes a locking bolt (4431) and a locking nut (4432). The right end of the locking bolt passes through the rolling mill frame and is fixed on the left side of the left rolling seat. The locking nut is fitted on the locking bolt. By turning the locking bolt, the left rolling seat is moved along the guide rail.

6. The automatic rolling machine according to claim 1, characterized in that: Bearing structures (444) are provided between the left rolling seat and the left rolling wheel, and between the right rolling seat and the right rolling wheel.

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