Miniature automatic three-roller plate rolling machine for rolling small-size plates

Abstract

The invention belongs to the technical field of machining equipment, and particularly relates to a miniature automatic three-roller plate rolling machine for rolling small-size plates, which comprises a lifting component, a rolling component, a rolling component, a rolling component, a rolling component, a rolling component and a rolling component, the lifting component comprises an upper roller shaft module, and the upper roller shaft module comprises a liftable upper roller shaft; the lower roll shaft assembly comprises a lower roll shaft module, the lower roll shaft module comprises two lower roll shafts capable of synchronously rotating in the horizontal direction, the two lower roll shafts are arranged in parallel at a preset distance, and the upper roll shaft is located above the position between the two lower roll shafts. The mode that the upper roller shaft and the lower roller shaft are arranged in a side-separated mode is adopted, the equipment size is minimized to the maximum degree through the bearings, and the machining requirement for rolling and bending small-size plates can be met.

Description

Technical Field

[0001] The present invention belongs to the technical field of machining equipment, and particularly relates to a micro automatic three-roll plate rolling machine for rolling small-sized plates. Background Art

[0002] The three-roll plate rolling machine is a common plate bending and forming equipment, which is widely used in fields such as metal processing, aerospace, and automobile manufacturing. Traditional three-roll plate rolling machines are usually used for rolling and forming medium and large-sized plates. However, with the development of micro manufacturing technology, the market demand for precision machining of small-sized plates is increasing day by day, such as the manufacturing of micro medical devices, micro electronic device casings, and other precision structural parts. But currently, the plate rolling machines on the market are mainly designed for large-sized plates with a plate thickness of more than 1 mm and a rolling bending radius of more than 50 mm, and it is difficult to meet the processing requirements of small-sized plates with a plate thickness of less than 1 mm and a rolling bending radius of less than 2 mm.

[0003] There are many deficiencies in the actual application of existing three-roll plate rolling machines. First, the pre-bending operation is complex, and usually, other equipment needs to be used to pre-bend the end of the plate, which increases the cost and operation difficulty. Second, the traditional plate rolling machine adopts a symmetrical arrangement of three rolls, resulting in a large overall size of the equipment, and it is difficult to meet the bending requirements of plates with small thickness and small bending radius. At the same time, the traditional plate rolling machine equipment mainly relies on manual operation to complete the clamping and plate rolling work, and the work efficiency is low.

[0004] Currently, there is a lack of micro plate rolling machines specifically for rolling small-sized plates in the market. Existing solutions are mostly improvements by downsizing large equipment, and problems such as the accuracy, stability, and operation convenience of micro machining have not been thoroughly solved. Therefore, developing a micro three-roll plate rolling machine specifically for rolling small-sized plates, optimizing the structural design, and improving the machining accuracy and automation level to meet the needs of precision manufacturing have important practical value and application prospects. Summary of the Invention

[0005] Aiming at the above technical problems, the present invention aims to provide a micro automatic three-roll plate rolling machine for rolling small-sized plates.

[0006] The micro automatic three-roll plate rolling machine for rolling small-sized plates includes:

[0007] A lifting assembly, including an upper roll shaft module, and the upper roll shaft module includes a liftable upper roll shaft;

[0008] A lower roll shaft assembly, including a lower roll shaft module, and the lower roll shaft module includes two lower roll shafts that can rotate synchronously around the horizontal direction. The two lower roll shafts are arranged in parallel at a preset distance, and the upper roll shaft is located above the two lower roll shafts.

[0009] Optionally, the lifting assembly further includes:

[0010] The lead screw slide module includes a stepper motor and a lead screw slide that are connected to each other, and the lead screw slide is driven by the stepper motor to move up and down.

[0011] The upper roller shaft module further includes:

[0012] The upper roller shaft mounting plate is mounted on the lead screw slide, and is connected to the upper roller shaft through upper roller shaft bearings. The lead screw slide is driven by the stepper motor to move up and down, and then the upper roller shaft is driven by the upper roller shaft mounting plate to move up and down.

[0013] Optionally, the upper roller shaft mounting plate has an upper roller shaft slot, there are two upper roller shaft bearings, the two upper roller shaft bearings are arranged along the axial direction of the upper roller shaft in the upper roller shaft slot, one end of the upper roller shaft extends into the upper roller shaft slot, and one end of the upper roller shaft is mounted in the upper roller shaft slot through the two upper roller shaft bearings.

[0014] Optionally, the micro automatic three-roll plate rolling machine for small-sized plates further includes:

[0015] The installation and support assembly includes a lead screw mounting plate, and the lead screw slide module is mounted on the lead screw mounting plate.

[0016] The lead screw slide module further includes:

[0017] The proximity switch is mounted on the lead screw mounting plate through screws and one or several nuts, is located on the side of the lead screw slide, and the detection surface faces the side of the lead screw slide.

[0018] Optionally, the installation and support assembly further includes:

[0019] The whole machine mounting plate is provided with a first mounting groove, and the lead screw mounting plate is arranged in the first mounting groove.

[0020] Optionally, the lower roller shaft module further includes:

[0021] Two lower roller shaft mounting plates are arranged along the axial direction of the lower roller shaft, and each lower roller shaft mounting plate is respectively connected to the two lower roller shafts through lower roller shaft bearings.

[0022] The micro automatic three-roll plate rolling machine for small-sized plates further includes:

[0023] The transmission assembly includes a gear transmission module and a DC motor, and the DC motor drives the two lower roller shafts to rotate respectively through the gear transmission module.

[0024] Optionally, each of the two lower roller shaft mounting plates is provided with two through lower roller shaft slots, one of the lower roller shaft bearings is arranged in one of the lower roller shaft slots, the two lower roller shafts respectively pass through the two lower roller shaft slots, and the lower roller shafts are connected to the lower roller shaft mounting plates through the lower roller shaft bearings.

[0025] Optionally, the micro automatic three-roll plate rolling machine for rolling small-sized plates further includes:

[0026] An installation and support assembly, including a whole machine mounting plate, the whole machine mounting plate is provided with two second installation grooves, and the two lower roller shaft mounting plates are respectively arranged in the two second installation grooves.

[0027] Optionally, the gear transmission module includes:

[0028] A transmission shaft, which is connected to the motor shaft of the DC motor through a coupling;

[0029] A driving gear, which is connected to the transmission shaft;

[0030] Two driven gears, which are respectively connected to one of the corresponding lower roller shafts and are respectively meshed with the driving gear. The DC motor drives the driving gear to rotate in sequence through the coupling and the transmission shaft, and then drives the two driven gears to rotate, and finally drives the two lower roller shafts to rotate synchronously.

[0031] Optionally, the micro automatic three-roll plate rolling machine for rolling small-sized plates further includes:

[0032] An installation and support assembly, including a motor mounting plate, and the DC motor is mounted on the motor mounting plate.

[0033] Optionally, the installation and support assembly further includes:

[0034] A whole machine mounting plate, which is provided with a third installation groove, and the motor mounting plate is arranged in the third installation groove.

[0035] Optionally, the lower roller shaft assembly further includes:

[0036] A lower roller shaft support module, including an upper support member with adjustable height, the upper support member is located below the two lower roller shafts and can be used to support the two lower roller shafts.

[0037] Optionally, the micro automatic three-roll plate rolling machine for rolling small-sized plates further includes:

[0038] An installation and support assembly, including a whole machine mounting plate;

[0039] The lower roller shaft support module further includes:

[0040] The support base is fixed on the whole machine mounting plate through mounting screws. The upper part of the mounting screws protrudes from the support base, and the upper support is rotatably connected to the upper part of the mounting screws;

[0041] At least one positioning pin penetrates through the upper support and is inserted into the support base at the bottom.

[0042] Optionally, there are two positioning pins, and the two positioning pins penetrate through the upper supports on both sides of the two lower roller shafts.

[0043] Optionally, a fourth mounting groove is provided on the whole machine mounting plate, and the support base is arranged in the fourth mounting groove.

[0044] Beneficial effects: The present invention has at least one or more of the following advantages:

[0045] 1. Small size of roll-bent plates: Traditional plate rolling machines adopt a symmetrically arranged three-roller shaft, generally used for rolling plates with a thickness of more than 1 mm and a roll-bending radius of more than 50 mm. The present invention adopts a side-by-side arrangement of the upper roller shaft and the lower roller shaft, and uses bearings to miniaturize the equipment size to the greatest extent. It can roll plates with a minimum thickness of 0.01 mm into cylinders with a radius of 1 mm.

[0046] 2. High degree of automation: Compared with the manual adjustment of the height of the upper roller shaft and the manual rotation of the lower roller shaft for rolling in traditional plate rolling machines, the present invention controls the movement of the screw slide by a stepping motor, thereby automatically controlling the downward pressure of the upper roller shaft. The synchronous rotation of the two lower roller shafts is controlled by a DC motor and a gear drive to achieve the rolling of the plate.

[0047] 3. The roll-bending radius is controllable, and the plate can be pre-bent: Due to the uncertainty of the downward pressure height of the upper roller shaft in traditional plate rolling machines, a controllable bending radius cannot be achieved. Different roll-bending radii can only be achieved by replacing the upper roller shaft, and the pre-bending of the plate cannot be achieved. The present invention is equipped with a proximity switch on the screw slide module, which can be zeroed before each downward pressure, and then the downward pressure of the upper roller shaft is achieved by a high-precision stepping motor. The downward pressure height can be adjusted in the control module, which can not only achieve the adjustment of different bending radii, but also achieve the pre-bending of the plate.

[0048] 4. Safe and reliable: The main stressed part, the lower roller shaft, of the present invention is provided with an upper support with adjustable height, which can avoid large bending moments on the lower roller shaft and improve its service life. Description of the drawings

[0049] Figure 1 It is a structural schematic diagram of the present invention;

[0050] Figure 2(a) is Figure 1 the front view of

[0051] Figure 2(b) is a partial structural sectional view of Figure 2(a);

[0052] Figure 3 is Figure 1 the top view of;

[0053] Figure 4 This is a schematic structural view of the lower roll shaft assembly of the present invention;

[0054] Figure 5 This is a schematic structural view of the transmission assembly of the present invention;

[0055] Figure 6 This is a rolling bending flow chart of the present invention. Specific embodiments

[0056] The following will describe in detail the preferred embodiments of the present invention with reference to the accompanying drawings, so as to more clearly understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not limitations on the scope of the present invention, but only to illustrate the essential spirit of the technical solution of the present invention.

[0057] In the following description, for the purpose of illustrating various disclosed embodiments, certain specific details are set forth to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments can be practiced without one or more of these specific details. In other instances, well-known devices, structures and techniques associated with the present application may not be shown or described in detail so as not to unnecessarily obscure the description of the embodiments.

[0058] References to "an embodiment" or "one embodiment" throughout the specification mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in an embodiment" or "in one embodiment" throughout the specification are not necessarily all referring to the same embodiment. Additionally, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0059] In the following description, in order to clearly show the structure and working mode of the present invention, many directional terms will be used for description. However, words such as "front", "rear", "left", "right", "outer", "inner", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as limiting terms.

[0060] Referring to Figures 1 to 5 , an embodiment of the present invention provides a micro automatic three-roll plate rolling machine for rolling small-sized plates. The micro automatic three-roll plate rolling machine for rolling small-sized plates includes a lifting assembly 2 and a lower roll shaft assembly 3.

[0061] The lifting assembly 2 includes an upper roller shaft module 22, and the upper roller shaft module 22 includes a liftable upper roller shaft 223.

[0062] The lower roller shaft assembly 3 includes a lower roller shaft module 32, and the lower roller shaft module 32 includes two lower roller shafts that can rotate synchronously around the horizontal direction. The two lower roller shafts are respectively a first lower roller shaft 321 and a second lower roller shaft 322. The first lower roller shaft 321 and the second lower roller shaft 322 are arranged in parallel at a preset distance, and the upper roller shaft 223 is located above the first lower roller shaft 321 and the second lower roller shaft 322. This preset distance can be adjusted and determined according to the diameter of the upper roller shaft 223, the thickness of the plate to be processed, and the bending radius to be introduced.

[0063] When the present invention is in use, the plate to be processed is manually placed on the first lower roller shaft 321 and the second lower roller shaft 322, and the upper roller shaft 223 is lowered to a preset height, and the plate is bent; the first lower roller shaft 321 and the second lower roller shaft 322 are driven to rotate synchronously, and the plate moves forward due to friction and undergoes rolling bending. For example, as Figure 6 shown, when the first lower roller shaft 321 and the second lower roller shaft 322 rotate counterclockwise synchronously, the plate between the upper roller shaft 223 and the first lower roller shaft 321 and the second lower roller shaft 322 moves forward due to friction and undergoes rolling bending.

[0064] The present invention adopts a method of arranging the upper and lower roller shafts in a split-side manner, which greatly reduces the overall size of the plate rolling machine and also greatly reduces the bending radius of the rolled plate.

[0065] In one embodiment, referring to Figure 1 and Fig. 2(a), the lifting assembly 2 further includes a lead screw slide table module 21. The lead screw slide table module 21 includes a stepping motor 211 and a lead screw slide table 213 that are connected to each other, and the lead screw slide table 213 is driven by the stepping motor 211 to lift.

[0066] The upper roller shaft module 22 further includes an upper roller shaft mounting plate 221 and an upper roller shaft bearing 222. The upper roller shaft mounting plate 221 is mounted on the lead screw slide table 213. The upper roller shaft mounting plate 221 is connected to the upper roller shaft 223 through the upper roller shaft bearing 222. The lead screw slide table 213 is driven by the stepping motor 211 to lift, and then the upper roller shaft 223 is driven to lift through the upper roller shaft mounting plate 221.

[0067] In this embodiment, the pressing and releasing of the upper roller shaft 223 are realized through the lead screw slide table module 21. Compared with the manual adjustment of the height of the upper roller shaft of the traditional plate rolling machine in this embodiment, the present invention controls the movement of the lead screw slide table 213 through the stepping motor 211, thereby automatically controlling the pressing of the upper roller shaft 223.

[0068] Due to the symmetrical arrangement of traditional plate rolling machines, interference problems arise when miniaturized. There is no space to install bearings, resulting in poor motion accuracy and unstable movement. In this embodiment, the upper and lower roller shafts are arranged on different sides, saving space for arranging the upper roller shaft bearing 222 and / or the lower roller shaft bearing 325, with stable movement and high rolling accuracy.

[0069] In one embodiment, the lead screw slide 213 is a lead screw assembly of the prior art, such as a micro trapezoidal lead screw mechanism.

[0070] The trapezoidal lead screw mechanism includes, for example, a lead screw, a lead screw nut, and a slide. The axial direction of the lead screw is the lifting direction of the upper roller shaft 223. One end of the lead screw is connected to the stepper motor 211. The lead screw nut is rotatably connected to the lead screw and is driven by the stepper motor 211 to rotate, thereby driving the lead screw nut to move linearly. The lead screw nut can be directly used as the slide and connected to the upper roller shaft mounting plate 221, or a connecting component can be added as the slide, and the connecting component is connected to the upper roller shaft mounting plate 221.

[0071] In one embodiment, referring to FIGS. 2(a) and 2(b), the upper roller shaft mounting plate 221 has an upper roller shaft slot. There are two upper roller shaft bearings 222. The two upper roller shaft bearings 222 are arranged in the upper roller shaft slot along the axial direction of the upper roller shaft 223. One end of the upper roller shaft 223 extends into the upper roller shaft slot, and one end of the upper roller shaft 223 is installed in the upper roller shaft slot through the two upper roller shaft bearings 222.

[0072] In this embodiment, two upper roller shaft bearings 222 are installed on the upper roller shaft 223 to reduce friction and improve motion accuracy.

[0073] In one embodiment, referring to Figures 1 to 3 , the micro automatic three-roller plate rolling machine for rolling small-sized plates further includes a mounting and supporting assembly 1. The mounting and supporting assembly 1 includes a lead screw mounting plate 12, and a lead screw slide module 21 is installed on the lead screw mounting plate 12.

[0074] The lead screw slide module 21 further includes a proximity switch 212, one or several nuts 214, and screws 215. The proximity switch 212 is installed on the lead screw mounting plate 12 through the screws 215 and one or several nuts 214. The proximity switch 212 is located on the side of the lead screw slide 213, and the detection surface of the proximity switch 212 faces the side of the lead screw slide 213.

[0075] In this embodiment, the distance between the proximity switch 212 and the lead screw slide 213 can be adjusted by the number of nuts 214. The distance between the two is preferably controlled within 2 mm. The nut 214 is preferably a hexagon nut.

[0076] Due to the uncertainty of the downward pressure height of the upper roller shaft in traditional plate rolling machines, a controllable bending radius cannot be achieved. Only by replacing the upper roller shaft can different rolling bending radii be achieved, and the pre-bending of the plate cannot be achieved. In this embodiment, a proximity switch 212 is installed on the lead screw slide module 21, which can perform zeroing before each downward pressure to ensure the use accuracy; then, the high-precision stepping motor 211 is used to achieve the downward pressure of the upper roller shaft, and the downward pressure height can be adjusted in the control module, which can not only achieve the adjustment of different bending radii but also achieve the pre-bending of the plate.

[0077] In one embodiment, referring to Figure 1 and Figure 4 , the installation support assembly 1 further includes a whole machine mounting plate 11. The whole machine mounting plate 11 is provided with a first installation groove, and the lead screw mounting plate 12 is arranged in the first installation groove to ensure the positioning accuracy.

[0078] In one embodiment, referring to Figure 1 , Figure 2(b), Figure 3 and Figure 4 , the lower roller shaft module 32 further includes two lower roller shaft mounting plates and a plurality of lower roller shaft bearings 325, namely the left lower roller shaft mounting plate 323 and the right lower roller shaft mounting plate 324. The left lower roller shaft mounting plate 323 and the right lower roller shaft mounting plate 324 are arranged along the axial direction of the first lower roller shaft 321 or the second lower roller shaft 322. The left lower roller shaft mounting plate 323 and the right lower roller shaft mounting plate 324 are respectively connected to the two lower roller shafts through the lower roller shaft bearings 325. That is to say, each lower roller shaft is connected to each lower roller shaft mounting plate through the lower roller shaft bearing 325.

[0079] In one embodiment, referring to Figure 1 and Figure 5 , the micro automatic three-roll plate rolling machine for rolling small-sized plates further includes a transmission assembly 4. The transmission assembly 4 includes a gear transmission module 41 and a DC motor 42. The DC motor 42 drives the first lower roller shaft 321 and the second lower roller shaft 322 to rotate through the gear transmission module 41 respectively.

[0080] In this embodiment, the rolling of the plate is realized by the synchronous rotation of the two lower roller shafts controlled by the DC motor 42 and the gear transmission, and the automation degree is high.

[0081] During specific use, when the upper roller shaft 223 presses the plate to be processed to the specified position, the first lower roller shaft 321 and the second lower roller shaft 322 are driven to rotate by the transmission assembly 4, and the plate moves forward due to friction and undergoes roll bending forming.

[0082] In one embodiment, referring to Figure 3, the lower left roller shaft mounting plate 323 and the lower right roller shaft mounting plate 324 are respectively provided with two through lower roller shaft slots, and one lower roller shaft bearing 325 is arranged in one lower roller shaft slot, that is to say, there are a total of four lower roller shaft bearings 325.

[0083] The two lower roller shaft slots of the lower left roller shaft mounting plate 323 and the two lower roller shaft slots of the lower right roller shaft mounting plate 324 are respectively coaxially arranged, that is to say, two groups of lower roller shaft through slots are formed on the lower left roller shaft mounting plate 323 and the lower right roller shaft mounting plate 324 for respectively inserting two lower roller shafts.

[0084] The first lower roller shaft 321 respectively passes through one lower roller shaft slot of the lower left roller shaft mounting plate 323 and one lower roller shaft slot of the lower right roller shaft mounting plate 324, and the second lower roller shaft 322 respectively passes through the other lower roller shaft slot of the lower left roller shaft mounting plate 323 and the other lower roller shaft slot of the lower right roller shaft mounting plate 324. Each lower roller shaft is connected to the lower roller shaft mounting plate through the lower roller shaft bearing 325.

[0085] As Figure 3 shown, the two lower roller shafts are connected to the lower roller shaft mounting plate through four lower roller shaft bearings 325 to reduce friction and improve the movement accuracy.

[0086] The lower roller shaft module 32 and the upper roller shaft module 22 are arranged in a split side manner to save space for the lower roller shaft bearing 325 and the upper roller shaft bearing 222.

[0087] In one embodiment, the upper roller shaft bearing 222 and the lower roller shaft bearing 325 adopt 681 miniature deep groove ball bearings.

[0088] The upper roller shaft bearing 222 and the lower roller shaft bearing 325 preferably adopt bearings with a size specification of inner diameter 1mm, outer diameter 3mm, and thickness 1mm.

[0089] In one embodiment, the miniature automatic three-roll plate rolling machine for small-sized plates further includes an installation support assembly 1. The installation support assembly 1 includes a whole machine mounting plate 11. The whole machine mounting plate 11 is provided with two second installation grooves, and the lower left roller shaft mounting plate 323 and the lower right roller shaft mounting plate 324 are respectively arranged in the two second installation grooves to ensure the positioning accuracy.

[0090] In one embodiment, referring to Figure 1 and Figure 5 , the gear transmission module 41 includes a driving gear 411, two driven gears 412, a transmission shaft 413, and a coupling 414.

[0091] The transmission shaft 413 is connected to the motor shaft of the DC motor 42 through a coupling 414. The driving gear 411 is connected to the transmission shaft 413. Two driven gears 412 are respectively connected to a corresponding lower roller shaft, and the two driven gears 412 are respectively meshed and connected to the driving gear 411. The DC motor 42 drives the driving gear 411 to rotate in sequence through the coupling 414 and the transmission shaft 413, and then drives the two driven gears 412 to rotate, and finally drives the two lower roller shafts to rotate synchronously.

[0092] In one embodiment, referring to Figure 1 and Figure 5 , the micro automatic three-roll plate rolling machine for rolling small-sized plates further includes an installation and support assembly 1, including a motor mounting plate 13, on which the DC motor 42 is mounted.

[0093] In one embodiment, the installation and support assembly 1 further includes a whole machine mounting plate 11, which is provided with a third installation groove, and the motor mounting plate 13 is arranged in the third installation groove to ensure the positioning accuracy.

[0094] In one embodiment, referring to Fig. 2(a) and Figure 4 , the lower roller shaft assembly 3 further includes a lower roller shaft support module 31, and the lower roller shaft support module 31 includes an upper support member 312 with adjustable height. The upper support member 312 is located below the two lower roller shafts and can be used to support the two lower roller shafts.

[0095] The lower roller shaft, which is the main stressed part of the present invention, is provided with an upper support member 312 with adjustable height, which can avoid large bending moments on the lower roller shaft and improve its service life.

[0096] In one embodiment, the micro automatic three-roll plate rolling machine for rolling small-sized plates further includes an installation and support assembly 1, and the installation and support assembly 1 includes a whole machine mounting plate 11.

[0097] The lower roller shaft support module 31 further includes a support base 311, at least one positioning pin 313 and mounting screws 314. The support base 311 is fixed on the whole machine mounting plate 11 through the mounting screws 314. The upper part of the mounting screws 314 extends out of the support base 311, and the upper support member 312 is rotatably connected to the upper part of the mounting screws 314. The positioning pin 313 penetrates through the upper support member 312, and the bottom of the positioning pin 313 is inserted into the support base 311.

[0098] During the installation of this embodiment, the support base 311 is first fixed on the whole machine mounting plate 11 through the mounting screws 314, and then the upper support member 312 is screwed into the mounting screws 314. The height of the upper support member 312 is controlled by the number of rotation turns. After reaching the specified position, the positioning pin 313 is inserted to fix it.

[0099] In one embodiment, there are two positioning pins 313, and the two positioning pins penetrate through the upper support members 312 on both sides of the two lower roller shafts.

[0100] In one embodiment, a fourth installation groove is provided on the whole machine mounting plate 11, and the support base 311 is arranged in the fourth installation groove to ensure the positioning accuracy.

[0101] In one embodiment, each shaft-like part, such as the upper roller shaft 223, the first lower roller shaft 321, and the second lower roller shaft 322, is made of high-strength bearing steel.

[0102] Embodiment 1:

[0103] Referring to Figures 1 to 5 , the upper roller shaft 223 can move up and down. The diameter of the upper roller shaft 223 is 2 mm, and the upper roller shaft 223 is located above the first lower roller shaft 321 and the second lower roller shaft 322. The diameters of the first lower roller shaft 321 and the second lower roller shaft 322 are both 2.5 mm. They are arranged side by side and the gap between them is 2.6 mm. Adjust the height of the upper support member 312 so that the upper support member 312 abuts against the first lower roller shaft 321 and the second lower roller shaft 322.

[0104] Referring to Figure 6 , during use, start the lead screw slide module 21. The stepper motor 211 drives the lead screw slide 213 to move to the preset zero position. Manually place the sheet material 5 with a thickness of 0.01 mm on the first lower roller shaft 321 and the second lower roller shaft 322. Start the lead screw slide module 21. The stepper motor 211 drives the lead screw slide 213 to drive the upper roller shaft 223 to descend to a certain height, which is 20.87 mm away from the zero position. The sheet material is bent. At the same time, start the DC motor 42, and the gear transmission module 41 drives the two lower roller shafts to rotate synchronously. The sheet material moves forward due to friction and undergoes roll bending to form a cylinder with a radius of 1 mm, and the rolling is completed.

[0105] When the present invention is in use, the positional relationship, diameter, and the descending amplitude of the upper roller shaft 223 of each component can be adjusted according to the thickness requirement of the sheet material to meet the processing requirements of small-sized sheet materials with a thickness of less than 1 mm and a roll bending radius of less than 2 mm.

[0106] The preferred embodiments of the present invention have been described in detail above. However, it should be understood that after reading the above teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention. These equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A miniature automatic three-roller plate rolling machine for rolling small-sized plates, characterized in that: include: A lifting assembly, comprising an upper roller module, wherein the upper roller module comprises an upper roller that can be lifted and lowered; The lower roller assembly comprises a lower roller module, wherein the lower roller module comprises two lower rollers which can rotate synchronously around the horizontal direction, the two lower rollers are arranged in parallel at a preset distance, and the upper roller is located above and between the two lower rollers.

2. The miniature automatic three-roller plate rolling machine for rolling small-sized plates according to claim 1, characterized in that: The lifting assembly also includes: The lead screw slide module comprises a stepper motor and a lead screw slide which are connected to each other, and the lead screw slide is driven to rise and fall by the stepper motor; The upper roller module also includes: The upper roller shaft mounting plate is mounted on the lead screw slide, connected to the upper roller shaft through the upper roller shaft bearing, and the lead screw slide is driven up and down by the stepper motor, and then the upper roller shaft is driven up and down through the upper roller shaft mounting plate.

3. The miniature automatic three-roller plate rolling machine for rolling small-sized plates as claimed in claim 2, characterized in that: The upper roller shaft mounting plate has an upper roller shaft slot, and there are two upper roller shaft bearings. The two upper roller shaft bearings are arranged in the upper roller shaft slot along the axial direction of the upper roller shaft, and one end of the upper roller shaft extends into the upper roller shaft slot, and one end of the upper roller shaft is installed in the upper roller shaft slot through the two upper roller shaft bearings.

4. The miniature automatic three-roller plate rolling machine for rolling small-sized plates as claimed in claim 2, characterized in that: The miniature automatic three-roller plate rolling machine for rolling small-size plates also includes: An installation support assembly includes a screw mounting plate, on which the screw slide module is mounted; The screw slide module also includes: A proximity switch is mounted on the screw mounting plate by means of screws and one or more nuts, and is located on the side of the screw slide, with the detection surface facing the side of the screw slide; Preferably, the mounting support assembly further comprises: The whole machine mounting plate is provided with a first mounting groove, and the lead screw mounting plate is arranged in the first mounting groove.

5. The miniature automatic three-roller plate rolling machine for rolling small-sized plates according to claim 1, characterized in that: The lower roller module also includes: Two lower roller shaft mounting plates are arranged along the axial direction of the lower roller shaft, and each of the lower roller shaft mounting plates is connected to the two lower roller shafts respectively through the lower roller shaft bearings; The miniature automatic three-roller plate rolling machine for rolling small-size plates also includes: The transmission assembly comprises a gear transmission module and a DC motor, and the DC motor drives the two lower rollers to rotate respectively through the gear transmission module.

6. The miniature automatic three-roller plate rolling machine for rolling small-sized plates as claimed in claim 5, characterized in that: The two lower roller shaft mounting plates are respectively provided with two penetrating lower roller shaft slots, one lower roller shaft bearing is arranged in one lower roller shaft slot, the two lower roller shafts respectively pass through the two lower roller shaft slots, and the lower roller shafts are connected to the lower roller shaft mounting plates through the lower roller shaft bearings; And / or, the miniature automatic three-roller plate rolling machine for rolling small-sized plates further comprises: The mounting support assembly includes a whole machine mounting plate, the whole machine mounting plate is provided with two second mounting grooves, and the two lower roller shaft mounting plates are respectively arranged in the two second mounting grooves; And / or, the miniature automatic three-roller plate rolling machine for rolling small-sized plates further comprises: An installation support assembly includes a motor mounting plate, on which the DC motor is mounted; Preferably, the mounting support assembly further comprises: The whole machine mounting plate is provided with a third mounting groove, and the motor mounting plate is arranged in the third mounting groove.

7. The miniature automatic three-roller plate rolling machine for rolling small-sized plates as claimed in claim 5, characterized in that: The gear transmission module comprises: A transmission shaft connected to the motor shaft of the DC motor through a coupling; A driving gear connected to the transmission shaft; The two passive gears are respectively connected to a corresponding one of the lower roller shafts, and are respectively meshed with the active gears. The DC motor drives the active gear to rotate via the coupling and the transmission shaft in sequence, thereby driving the two passive gears to rotate, and finally driving the two lower roller shafts to rotate synchronously.

8. The miniature automatic three-roller plate rolling machine for rolling small-sized plates according to any one of claims 1 to 7, characterized in that: The lower roller assembly also includes: The lower roller support module comprises an upper support member with adjustable height, wherein the upper support member is located below the two lower rollers and can be used to support the two lower rollers.

9. The miniature automatic three-roller plate rolling machine for rolling small-sized plates as claimed in claim 8, characterized in that: The miniature automatic three-roller plate rolling machine for rolling small-size plates also includes: Install support components, including the whole machine mounting plate; The lower roller support module also includes: A support member base is fixed to the whole machine mounting plate by means of mounting screws, the upper portion of the mounting screws protrudes from the support member base, and the upper support member is rotatably connected to the upper portion of the mounting screws; At least one positioning pin passes through the upper support member and has a bottom inserted into the support member base.

10. The miniature automatic three-roller plate rolling machine for rolling small-sized plates according to claim 9, characterized in that: There are two positioning pins, and the two positioning pins penetrate the upper support members on both sides of the two lower roller shafts; And / or, a fourth mounting groove is arranged on the whole machine mounting plate, and the support member base is arranged in the fourth mounting groove.

Images