A CNC metal sheet wire drawing machine

Abstract

The present invention discloses a CNC metal sheet wire drawing machine, comprising a frame, a conveying mechanism, a wire drawing mechanism, a lateral moving device and a mobile rotating device, wherein the wire drawing mechanism is arranged below the mobile rotating device. The lateral moving device and the mobile rotating device are used to drive the overall movement and steering of the wire drawing mechanism. A wire drawing roller swing control mechanism is provided in the wire drawing mechanism for controlling the swing amplitude and frequency of the wire drawing roller. According to the requirements of the wire drawing texture, the present invention individually sets and starts and stops the parameters such as the lateral moving direction, lateral moving speed, longitudinal moving direction, longitudinal moving speed, rotation direction, rotation speed, wire drawing roller swing frequency and wire drawing roller swing amplitude of the wire drawing mechanism, thereby drawing complex textures such as straight textures, random textures, twill textures of specific angles, threads and spiral textures on the surface of the metal sheet, realizing refined control of the wire drawing texture and meeting people's needs for various styles of wire drawing textures.

Description

Technical Field

[0001] The present invention relates to the technical field of metal sheet processing equipment, and in particular to a numerically controlled metal sheet wire drawing machine. Background Art

[0002] Surface brushing is a decorative surface treatment that creates lines on the surface of a workpiece by grinding a product. Because brushing imparts a non-mirror-like metallic luster to the metal surface, reminiscent of silk satin, it offers a strong decorative effect, revitalizing ordinary metals. Furthermore, brushed metal sheets also gain a certain degree of wear resistance. Therefore, brushing is gaining increasing market recognition and widespread application.

[0003] For example, in the construction industry, wire drawing applications include elevator door panels and escalator decorative panels; in the hardware industry, faucets, hinges, handles, and lock panels; and in kitchen appliances, such as range hoods, stainless steel stoves, and sinks. The recent rise of various 3C digital products has further catapulted wire drawing applications to a new level, including laptop panels, keyboard panels, mobile phone panels, LCD frames, battery covers, camera covers, and digital camera lens covers. Other electronic products include projectors and speakers. Existing sheet metal wire drawing machines are overly specialized, with low automation levels and insufficient control over wire drawing patterns. Most machines are only capable of processing straight and random grains, and are unable to process complex patterns such as twill, thread, and spiral. This inability to achieve precise control over wire drawing patterns prevents the demand for diverse wire drawing patterns for diverse products. Summary of the Invention

[0004] The purpose of the present invention is to provide a CNC metal sheet wire drawing machine to solve the problems of poor control of the wire drawing texture of the metal sheet, single function, low degree of automation, etc., to achieve multi-purpose use of one machine and precise control of the wire drawing texture. On the basis of satisfying the requirements of drawing straight and random textures on the surface of the metal sheet, it can also draw out complex textures such as twill textures, threads and spiral textures of specific angles.

[0005] To achieve the above-mentioned purpose, the technical solution of the present application is as follows: a CNC metal sheet wire drawing machine, comprising a conveying mechanism, a wire drawing mechanism, a transverse moving device, and a moving and rotating device arranged on a frame, wherein the transverse moving device is located at the top of the frame and is slidably connected to the moving and rotating device, the moving and rotating device is used to drive the wire drawing mechanism to move longitudinally and turn, and a conveying mechanism is provided below the wire drawing mechanism;

[0006] The wire drawing mechanism includes a rotation mechanism, a wire drawing mechanism frame, an elevator, a connecting flange, a lifting servo motor, a frequency conversion motor, a first reducer, a bearing seat, a wire drawing roller, a fixed table linear guide and a wire drawing roller fixed table. The upper end of the rotation mechanism is connected to the mobile rotating device, and the lower end is installed on the wire drawing mechanism frame. Elevators are symmetrically provided on both sides of the wire drawing mechanism frame, and a lifting servo motor is installed on each elevator through a connecting flange; the lifting shaft of the elevator is connected to the mounting plate through the lower flange, and the mounting plate is connected to the fixed table linear guide on the top of the wire drawing roller fixed table. The frequency conversion motor is connected to the outside of one side of the wire drawing roller fixed table through the first reducer, and the output end of the first reducer is connected to the wire drawing roller. The mounting shaft of the wire drawing roller passes through the bearing seats on both sides, and the bearing seats are installed on the inner side of the wire drawing roller fixed table.

[0007] Furthermore, the rotation mechanism includes a bearing pressure ring, a tapered roller bearing, a stepped sleeve and a flange shaft. The stepped sleeve is provided with grooves at the top and bottom, and a tapered roller bearing is provided in each groove. A bearing pressure ring is also provided on the tapered roller bearing at the top. The bearing pressure ring and the tapered roller bearing are both sleeved on the flange shaft. The part of the flange shaft extending out of the stepped sleeve is used to be connected to the output end of the second reducer of the mobile rotating device, and the flange shaft is fixed on the wire drawing mechanism frame.

[0008] Furthermore, a wire drawing roller swing control mechanism is provided on the wire drawing roller fixed platform, and the wire drawing roller swing control mechanism includes a long-axis motor, a wear-resistant bearing sleeve, an eccentric cylindrical block, a bearing, and a bearing fixing cover plate. The long-axis motor is installed on the wire drawing mechanism frame and an eccentric cylindrical block is sleeved on its output shaft. The outer cylindrical surface of the eccentric cylindrical block is interference-connected with the inner ring of the bearing. The bearing is placed in the wear-resistant bearing sleeve, and the bearing fixing cover plate is fixed to the end of the output shaft of the long-axis motor; the long-axis motor, wear-resistant bearing sleeve, eccentric cylindrical block, bearing and bearing fixing cover plate constitute a swing drive device.

[0009] Furthermore, the drawing roller swing control mechanism also includes an electric push rod, a dovetail slider and a dovetail slide. The electric push rod is symmetrically installed on the drawing roller fixed platform, and its push rod head is connected to the dovetail slider. The dovetail slider is placed in the dovetail slide groove, and the vertical side of the dovetail slider is in contact with the outer circle of the wear-resistant bearing sleeve. The electric push rod, dovetail slider and dovetail slide constitute a swing control device, and the swing drive device is located between the two groups of swing control devices.

[0010] Furthermore, the lateral moving device includes a lateral electric push rod and a first lateral linear guide rail. The first lateral linear guide rail is symmetrically arranged on the top of the frame. A lateral electric push rod is provided at the end of each first lateral linear guide rail. The lateral electric push rod is connected to the moving and rotating device. The moving and rotating device moves along the first lateral linear guide rail through the first slider on the bottom surface.

[0011] Furthermore, the mobile rotating device includes a rotary servo motor, a second reducer, a mobile rotating device frame, a support plate, and a second transverse linear guide rail. The rotary servo motor is connected to the input end of the second reducer, and the second reducer is installed on the support plate. The support plate moves along the second transverse linear guide rail through the second sliders on both sides of the bottom, and the second transverse linear guide rail is placed on the mobile rotating device frame.

[0012] Furthermore, the mobile rotating device also includes a screw connector and a ball screw stepper motor. The screw connector is fixed to the side of the support plate and connected to the ball screw stepper motor. The ball screw stepper motor is installed on the upper part of the mobile rotating device frame as a power mechanism.

[0013] Furthermore, a set of fixed platform linear guide rails are respectively provided on both sides of the top of the drawing roller fixed platform.

[0014] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0015] 1. The position of the wire drawing mechanism within the work platform and the processing angle of the metal sheet are controlled by setting a lateral movement device and a mobile rotation device. A wire drawing roller swing mechanism is set in the wire drawing mechanism. The dovetail slider is driven by an electric push rod, and the distance between the eccentric mechanism and the dovetail sliders on both sides is adjusted to control the swing amplitude and frequency of the wire drawing roller.

[0016] 2. By setting a servo motor-driven elevator in the wire drawing mechanism, the height difference between the wire drawing roller and the work table can be adjusted in real time, so as to process metal sheets of different thicknesses and compensate for the wear of the wire drawing roller.

[0017] 3. According to the requirements of wire drawing patterns, the parameters of the wire drawing mechanism, such as the lateral movement direction, lateral movement speed, longitudinal movement direction, longitudinal movement speed, rotation direction, rotation speed, drawing roller swing frequency and drawing roller swing amplitude, are individually set and started and stopped, so as to draw complex patterns such as straight lines, random lines, twill lines of specific angles, threads and spiral lines on the surface of the metal sheet, realizing the refined control of the wire drawing patterns and meeting people's needs for various styles of wire drawing patterns. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of a CNC metal sheet wire drawing machine;

[0019] Figure 2 It is a top view of a CNC sheet metal wire drawing machine;

[0020] Figure 3 It is a schematic diagram of the structure of the mobile rotating device;

[0021] Figure 4 This is the main view of the wire drawing mechanism;

[0022] Figure 5 It is the exploded diagram of the rotary mechanism;

[0023] Figure 6 This is an exploded view of the wire drawing roller swing mechanism;

[0024] in:

[0025] 10. Frame;

[0026] 20. Conveying mechanism;

[0027] 30. Wire drawing mechanism;

[0028] 301, rotation mechanism; 3011, bearing pressure ring; 3012, tapered roller bearing; 3013, stepped sleeve; 3014, flange shaft;

[0029] 302, wire drawing mechanism frame; 303, elevator; 304, connecting flange; 305, lifting servo motor; 306, variable frequency motor; 307, first reducer; 308, bearing seat; 309, wire drawing roller; 310, fixed platform linear guide;

[0030] 311. Drawing roller swing control mechanism; 3111. Long-axis motor; 3112. Wear-resistant bearing sleeve; 3113. Eccentric cylindrical block; 3114. Bearing; 3115. Electric push rod; 3116. Bearing fixing cover plate; 3117. Dovetail slider; 3118. Dovetail slide; 3119. Drawing roller fixing platform; 40. Transverse moving device; 401. Transverse electric push rod; 402 First transverse linear guide; 50. Moving and rotating device; 501. Rotating servo motor; 502. Second reducer; 503 Moving and rotating device frame; 504. Support plate; 505. Second transverse linear guide; 506. Screw connector; 507. Ball screw stepper motor. DETAILED DESCRIPTION

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0032] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on specific circumstances. The present invention is further explained below with reference to the accompanying drawings:

[0033] The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] like Figures 1-6 As shown, a CNC metal sheet wire drawing machine includes a frame 10, a conveying mechanism 20, a wire drawing mechanism 30, a transverse moving device 40 and a moving and rotating device 50. The wire drawing mechanism 30 is connected to the bottom of the moving and rotating device 50. The transverse moving device 40 and the moving and rotating device 50 are used to drive the wire drawing mechanism 30 to move and turn as a whole.

[0035] The wire drawing mechanism 30 includes a rotation mechanism 301, a wire drawing mechanism frame 302, an elevator 303, a connecting flange 304, a lifting servo motor 305, a frequency conversion motor 306, a first reducer 307, a bearing seat 308, a wire drawing roller 309, a fixed table linear guide 310 and a wire drawing roller swing control mechanism 311. The upper end of the rotation mechanism 301 is connected to the mobile rotating device 50, and the lower end is installed on the wire drawing mechanism frame 302. The lifting servo motor 305 is installed on the elevator 303 through the connecting flange 304. The elevator 303 is installed on the drawing On the wire drawing machine frame 302, the variable frequency motor 306 is mounted on the side of the wire drawing roller swing control mechanism 311 through a first reducer. The output end of the first reducer is connected to one end of the wire drawing roller 309. The shaft end of the wire drawing roller 309 passes through the bearing seats 308 on both sides. The bearing seats 308 are mounted on the lower inner side of the wire drawing roller swing control mechanism 311. The fixed platform linear guide 310 is mounted on the upper surface of the wire drawing roller swing control mechanism 311. Each two sets of fixed platform linear guides 310 are connected to the lower flange of an elevator 303 through a mounting plate. The lifting servo motor 305 drives the elevator 303 to raise and lower the wire drawing roller, allowing the processing of metal sheets of different thicknesses and compensating for the wear of the wire drawing roller, thereby ensuring the quality of the sheet wire drawing.

[0036] The rotation mechanism 301 includes a bearing pressure ring 3011, a tapered roller bearing 3012, a stepped sleeve 3013 and a flange shaft 3014. The upper end face of the stepped sleeve 3013 is connected to the support plate 504. The upper end of the flange shaft 3014 passes through two tapered roller bearings 3012, the stepped sleeve 3013, and the bearing pressure ring 3011 in sequence and is connected to the lower output end of the second reducer 502. The flange shaft is fixed on the wire drawing mechanism frame 302, and the flange shaft rotates synchronously with the wire drawing mechanism body. The stepped sleeve 3013 is fixed to the support plate 504 by bolts and does not rotate with the wire drawing mechanism body.

[0037] The wire drawing roller swing control mechanism 311 includes a long-axis motor 3111, a wear-resistant bearing sleeve 3112, an eccentric cylindrical block 3113, a bearing 3114, an electric push rod 3115, a bearing fixing cover plate 3116, a dovetail slider 3117, a dovetail slide 3118 and a wire drawing roller fixing platform 3119. The long-axis motor 3111 is installed on the wire drawing mechanism frame 302, the wear-resistant bearing sleeve 3112 is connected to the outer ring of the bearing 3114, the outer cylindrical surface of the eccentric cylindrical block 3113 is connected to the inner ring of the bearing 3114, the inner hole surface of the eccentric cylindrical block 3113 is connected to the output shaft of the long-axis motor 3111, and the bearing fixing cover plate 3116 is fixed on The long-axis motor 3111 outputs the shaft end, and the electric push rod 3115 is installed on the drawing roller fixed platform 3119. The push rod head is connected to the dovetail slider 3117. The dovetail slider 3117 is placed in the groove of the dovetail slide 3118, and its vertical side is in contact with the outer circle of the wear-resistant bearing sleeve 3112. The long-axis motor 3111, the wear-resistant bearing sleeve 3112, the eccentric cylindrical block 3113, the bearing 3114 and the bearing fixing cover 3116 constitute a swing drive device. The electric push rod 3115, the dovetail slider 3117 and the dovetail slide 3118 constitute a group of swing control devices, and the swing drive device is located between the two groups of swing control devices. By controlling the rotation speed of the long-axis motor 3111 and using two sets of electric push rods 3115 to synchronously push the two sets of dovetail sliders 3117 to move, the center distance of the dovetail sliders is changed, and the wear-resistant bearing sleeve 3112 pushes the drawing roller fixed platform 3119 to reduce or increase the left and right swing amplitude and swing frequency, thereby achieving the purpose of controlling the random wire drawing effect.

[0038] The transverse moving device 40 includes a transverse electric push rod 401 and a first transverse linear guide rail 402. The transverse electric push rod 401 is installed on the top of the frame 10, and the push rod end is connected to the moving and rotating device 50. The first transverse linear guide rail 402 is installed on the top of the frame 10 and is connected to the bottom surface of the moving and rotating device 50 through the first slider. Two sets of transverse electric push rods 401 are used to push the moving and rotating device 50 installed on the first transverse linear guide rail 402 to move transversely, and the moving speed and direction can be controlled, and CNC adjustment can be performed according to requirements.

[0039] The mobile rotating device 50 includes a rotary servo motor 501, a second reducer 502, a mobile rotating device frame 503, a support plate 504, a second transverse linear guide 505, a screw connector 506, and a ball screw stepper motor 507. The rotary servo motor 501 is mounted on the input end of the second reducer 502, the second reducer 502 is mounted on the upper part of the support plate 504, the second transverse linear guide 505 is mounted on the upper part of the mobile rotating device frame 503, and its second slider is connected to the bottom of the support plate 504. The screw connector 506 is fixed to the side of the support plate 504, and the ball screw stepper motor 507 is mounted on the upper part of the mobile rotating device frame 503, which serves as a power mechanism. The mobile rotating device 50 can control the horizontal movement of the wire drawing mechanism, and can control the movement speed and movement direction, and can make the wire drawing mechanism rotate to a specific angle or maintain a specific rotation speed for continuous rotation.

[0040] The specific working principle of the present invention is as follows: a metal sheet is placed on a conveyor mechanism 20, and the height of the wire drawing mechanism is adjusted using an elevator 303 according to the thickness of the metal sheet. Based on the desired wire drawing pattern, parameters such as the lateral movement direction, lateral movement speed, longitudinal movement direction, longitudinal movement speed, rotational direction, rotational speed, wire drawing roller swing speed, and wire drawing roller swing amplitude are individually set and enabled / disabled. This allows complex patterns such as straight lines, random lines, diagonal lines at specific angles, threads, and spiral lines to be drawn on the surface of the metal sheet, achieving refined control of the wire drawing pattern and meeting the demand for diverse wire drawing patterns.

[0041] The above description is merely an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

[0042] Although the claims in this application have been formulated with reference to particular combinations of features, it will be understood that the scope of the present disclosure also includes any novel feature or any novel combination of features disclosed herein, whether explicitly or implicitly or in any generalization thereof, whether or not it relates to the same arrangement in any claim currently claimed.

Claims

1. A CNC metal sheet wire drawing machine, characterized in that: It includes a conveying mechanism, a wire drawing mechanism, a transverse moving device, and a moving and rotating device arranged on a frame. The transverse moving device is located on the top of the frame and is slidably connected to the moving and rotating device. The moving and rotating device is used to drive the wire drawing mechanism to move longitudinally and turn. A conveying mechanism is provided below the wire drawing mechanism. The wire drawing mechanism includes a rotation mechanism, a wire drawing mechanism frame, an elevator, a connecting flange, a lifting servo motor, a frequency conversion motor, a first reducer, a bearing seat, a wire drawing roller, a fixed table linear guide and a wire drawing roller fixed table. The upper end of the rotation mechanism is connected to the mobile rotating device, and the lower end is installed on the wire drawing mechanism frame. Elevators are symmetrically provided on both sides of the wire drawing mechanism frame, and a lifting servo motor is installed on each elevator through a connecting flange; the lifting shaft of the elevator is connected to the mounting plate through the lower flange, and the mounting plate is connected to the fixed table linear guide on the top of the wire drawing roller fixed table. The frequency conversion motor is connected to the outside of one side of the wire drawing roller fixed table through the first reducer, and the output end of the first reducer is connected to the wire drawing roller, and the mounting shaft of the wire drawing roller passes through the bearing seats on both sides, and the bearing seats are installed on the inner side of the wire drawing roller fixed table; The wire drawing roller fixed platform is provided with a wire drawing roller swing control mechanism, and the wire drawing roller swing control mechanism includes a long-axis motor, a wear-resistant bearing sleeve, an eccentric cylindrical block, a bearing, and a bearing fixing cover plate. The long-axis motor is installed on the wire drawing mechanism frame and an eccentric cylindrical block is sleeved on its output shaft. The outer cylindrical surface of the eccentric cylindrical block is interference-connected with the inner ring of the bearing. The bearing is placed in the wear-resistant bearing sleeve, and the bearing fixing cover plate is fixed to the end of the output shaft of the long-axis motor; the long-axis motor, wear-resistant bearing sleeve, eccentric cylindrical block, bearing and bearing fixing cover plate constitute a swing drive device; The wire drawing roller swing control mechanism also includes an electric push rod, a dovetail slider and a dovetail slide. The electric push rod is symmetrically installed on the wire drawing roller fixed platform, and its push rod head is connected to the dovetail slider. The dovetail slider is placed in the dovetail slide groove, and the vertical side of the dovetail slider is in contact with the outer circle of the wear-resistant bearing sleeve. The electric push rod, dovetail slider and dovetail slide constitute a swing control device, and the swing drive device is located between the two groups of swing control devices.

2. A CNC metal sheet wire drawing machine according to claim 1, characterized in that: The rotation mechanism includes a bearing pressure ring, a tapered roller bearing, a stepped sleeve and a flange shaft. The stepped sleeve is provided with grooves at the top and bottom, and a tapered roller bearing is provided in each groove. A bearing pressure ring is also provided on the tapered roller bearing at the top. The bearing pressure ring and the tapered roller bearing are both sleeved on the flange shaft. The part of the flange shaft extending out of the stepped sleeve is used to be connected to the output end of the second reducer of the mobile rotating device, and the flange shaft is fixed on the wire drawing mechanism frame.

3. The CNC metal sheet wire drawing machine according to claim 1, characterized in that: The lateral moving device includes a lateral electric push rod and a first lateral linear guide rail. The first lateral linear guide rail is symmetrically arranged on the top of the frame. A lateral electric push rod is provided at the end of each first lateral linear guide rail. The lateral electric push rod is connected to the moving and rotating device. The moving and rotating device moves along the first lateral linear guide rail through the first slider on the bottom surface.

4. The CNC metal sheet wire drawing machine according to claim 1, characterized in that: The mobile rotating device includes a rotating servo motor, a second reducer, a mobile rotating device frame, a support plate, and a second transverse linear guide rail. The rotating servo motor is connected to the input end of the second reducer. The second reducer is installed on the support plate. The support plate moves along the second transverse linear guide rail through the second sliders on both sides of the bottom. The second transverse linear guide rail is placed on the mobile rotating device frame.

5. The CNC metal sheet wire drawing machine according to claim 4, characterized in that: The mobile rotating device also includes a screw connector and a ball screw stepper motor. The screw connector is fixed to the side of the support plate and connected to the ball screw stepper motor. The ball screw stepper motor is installed on the upper part of the mobile rotating device frame as a power mechanism.

6. The CNC metal sheet wire drawing machine according to claim 1, characterized in that: A set of fixed platform linear guide rails are respectively provided on both sides of the top of the wire drawing roller fixed platform.

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