A high-precision cutting device for ultra-thin metal sheets

Abstract

The present invention discloses a high-precision cutting device for ultra-thin metal plates, which relates to the technical field of plate cutting. The present invention can ensure that the thin plate always remains flat during the cutting process through a precise clamping and pressing mechanism, which enables the laser cutting head to run stably along a predetermined trajectory, avoiding cutting errors caused by plate deformation; it includes a centrifugal force mechanism generated by a rotating tray, which can effectively remove the powder generated during the cutting process from the cutting area, avoiding the accumulation of powder on the surface of the plate. During the cutting process, the cooperation of centrifugal force and the rotating tray separates the powder in time, reducing the interference of powder on the cutting quality, while ensuring the cleanliness of the equipment, reducing the frequency of post-cleaning, and improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of plate cutting, in particular to high-precision cutting equipment for ultra-thin metal plates. Background Art

[0002] During the cutting of thin sheet metal, the force of gravity on the sheet itself often results in an uneven surface, which directly affects cutting accuracy. This is especially true when processing ultra-thin metal sheets, which are lightweight and significantly affected by gravity, making them prone to falling or bending. This uneven surface prevents the laser cutting head or other cutting tools from accurately following the intended path, resulting in cutting errors and even cutting failure. Furthermore, an uneven surface increases the difficulty of subsequent processing, potentially requiring further leveling, which wastes time and resources. Furthermore, during the cutting process, the high temperature between the sheet and the laser cutting head produces a large amount of powder and melt in the cutting area. This powder can affect cutting accuracy. The accumulation of powder in the cutting area can interfere with the focus of the laser beam, reducing cutting quality and increasing cutting instability. Summary of the Invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a high-precision cutting equipment for ultra-thin metal plates, comprising a rotating plane, two symmetrically arranged elongated slide grooves are provided in the radial direction of the rotating plane, and clamping bars are symmetrically provided at the two elongated slide grooves, each clamping bar is provided with an insertion groove, and the clamping bar is slidably arranged on the upper surface of the rotating plane along the length direction of the elongated slide groove, and an extrusion plate is provided in the insertion groove, and the extrusion plate is used to clamp the plate inserted in the insertion groove; the lower surface of the rotating plane is suspended and fixed on the rotating pallet, and a top support ring is suspended and fixed above the rotating plane through a support ring frame, and two parallel first movable slide bars are fixedly installed on the inner side of the top support ring, and a second movable slide bar support block is slidably sleeved on the two first movable slide bars, and two parallel second movable slide bars are fixedly installed between the two second movable slide bar support blocks, and a laser welding head is slidably provided on the two second movable slide bars.

[0004] Preferably, two parallel lower slide bars are slidably mounted on the clamping bar, the two lower slide bars are fixedly matched with the placement insertion slots, and a downward pressure beam is fixedly mounted on one end of the two lower slide bars away from the placement insertion slots.

[0005] Preferably, two parallel clamping counterweight support slide bars are fixedly installed on the side of the clamping bar, and a clamping counterweight is slidably arranged on the clamping counterweight support slide bar. The clamping counterweight is movably connected to the downward pressure beam through a downward pressure connecting rod, wherein the height of the lower surface of the downward pressure beam is higher than the height of the upper surface of the clamping counterweight, and the downward pressure connecting rod is inclined.

[0006] Preferably, two parallel rack brackets are fixedly installed on the lower surface of the rotating plane, and two racks symmetrical about the center origin of the rotating plane are slidably arranged between the two rack brackets. The two racks are fixedly matched with the two clamping bars through the long sliding grooves, and the two racks are matched through the meshing transmission of the linkage gears.

[0007] Preferably, a belt transmission assembly is rotatably provided on the second movable slide rod support block for driving the laser welding head to slide on the second movable slide rod; a tension spring is arranged around each first movable slide rod, and both ends of the tension spring are fixedly engaged with the top support ring and the second movable slide rod support block.

[0008] Preferably, a bow frame is fixed on the end of the two second movable slide rod support blocks away from the tension spring, and a movable counterweight block is fixed in the middle of the bow frame, wherein the bow frame is slidably set on the top edge of the top support ring, and the bow frame also slides with the two first movable slide rods.

[0009] Preferably, the rotating tray is rotatably mounted on the base, and a gear ring disk coaxial with the rotating tray is also rotatably mounted on the base. The gear ring disk and the rotating tray are fixedly fitted through a rotating shaft. An active disk bracket is also fixedly mounted on the base, and a gear active disk is rotatably mounted on the active disk bracket.

[0010] Preferably, at least two planetary gears meshing with the inner side of the gear ring disk are rotatably mounted on the gear driving disk, a central gear is provided at the revolution center position of all planetary gears, the central gear is meshed with all planetary gears, and a cooperative motor is also fixedly mounted on the gear driving disk, the output shaft of the cooperative motor is fixedly matched with the central gear (the cooperative motor is powered by a collector ring).

[0011] Preferably, a driving motor is also fixedly mounted on the base, and the output shaft of the driving motor is coupled to the gear driving plate via a transmission belt.

[0012] Compared with the prior art, the present invention has the following advantages: (1) The present invention can effectively overcome the problem of thin plate falling and surface unevenness caused by gravity through precise clamping and pressing mechanisms. Through the clamping strips and extrusion plates coordinated by magnetic force, and the stable control assisted by centrifugal force, the thin plate can always remain flat during the cutting process, avoiding surface deformation or bending; (2) The present invention can ensure that the thin plate always remains flat during the cutting process, which enables the laser cutting head to run stably along the predetermined trajectory, avoiding cutting errors caused by plate deformation; (3) The present invention includes a centrifugal force mechanism generated by a rotating tray, which can effectively remove the powder generated during the cutting process from the cutting area, avoiding the accumulation of powder on the plate surface. During the cutting process, the combination of centrifugal force and the rotating tray separates the powder in time, reducing the interference of powder on the cutting quality, while ensuring the cleanliness of the equipment, reducing the frequency of later cleaning, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the base structure of the present invention.

[0015] Figure 3 This is an exploded view of the base structure of the present invention.

[0016] Figure 4 This is a structural diagram of the movable slide rod of the present invention.

[0017] Figure 5 It is a structural schematic diagram of the linkage gear of the present invention.

[0018] Figure 6 It is a structural schematic diagram of the clamping strip of the present invention.

[0019] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point A in the middle.

[0020] In the figure: 101-base; 102-gear ring plate; 103-planetary gear; 104-center gear; 105-gear driving plate; 106-driving plate bracket; 107-cooperating motor; 108-transmission belt; 109-driving motor; 110-rotating tray; 111-supporting ring frame; 112-rotating plane; 113-clamping bar; 114-downward pressure beam; 115-downward sliding rod; 116-extrusion plate; 117-placement insertion slot; 11 8-clamping counterweight support slide; 119-clamping counterweight; 120-pressing connecting rod; 121-long slide groove; 122-rack; 123-rack bracket; 124-linking gear; 125-top support ring; 126-first movable slide; 127-second movable slide support block; 128-second movable slide; 129-belt transmission assembly; 130-laser welding head; 131-tension spring; 132-bow frame; 133-moving counterweight. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-7 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0022] The present invention provides a high-precision cutting device for ultra-thin metal sheets, comprising a rotating plane 112, two symmetrically arranged elongated chutes 121 being defined in the radial direction of the rotating plane 112, clamping bars 113 being symmetrically disposed at the two elongated chutes 121, each of the clamping bars 113 being defined with a placement insertion slot 117, the clamping bars 113 being slidably disposed on the upper surface of the rotating plane 112 along the length direction of the elongated chutes 121, the placement insertion slot 117 being provided with an extrusion plate 116, the extrusion plate 116 being used to clamp a sheet inserted into the placement insertion slot 117; The lower surface of the rotating plane 112 is fixed overhead on the rotating tray 110. A top support ring 125 is fixed overhead above the rotating plane 112 via a support ring frame 111. Two parallel first movable slides 126 are fixedly mounted on the inner side of the top support ring 125. Second movable slide support blocks 127 are slidably mounted on the two first movable slides 126. Two parallel second movable slides 128 are fixedly mounted between the two second movable slide support blocks 127. Laser welding heads 130 are slidably mounted on the two second movable slides 128. Two parallel lower slides 115 are also slidably mounted on the clamping bar 113. The two lower slides 115 are fixedly engaged with the placement and insertion slots 117. The lower pressure beam 114 is fixedly mounted on the ends of the two lower slides 115 away from the placement and insertion slots 117. Two parallel clamping counterweight support slides 118 are fixedly mounted on the side of the clamping bar 113. A clamping counterweight 119 is slidably mounted on the clamping counterweight support slide 118. The clamping counterweight 119 is movably connected to the downward pressure beam 114 via a downward pressure link 120. The lower surface of the downward pressure beam 114 is higher than the upper surface of the clamping counterweight 119, and the downward pressure link 120 is tilted. Two parallel rack brackets 123 are fixedly mounted on the lower surface of the rotating plane 112. Two racks 122 symmetrical about the center origin of the rotating plane 112 are slidably mounted between the two rack brackets 123. The two racks 122 are fixedly mated with the two clamping bars 113 through elongated slots 121. The two racks 122 are meshed and driven by a linkage gear 124.

[0023] A belt drive assembly 129 is rotatably mounted on the second movable slide bar support block 127, driving the laser welding head 130 to slide on the second movable slide bar 128. A tension spring 131 is mounted around each first movable slide bar 126, with both ends of the tension spring 131 securely mated with the top support ring 125 and the second movable slide bar support block 127. A bow 132 is secured to the ends of the two second movable slide bar support blocks 127, away from the tension spring 131. A movable counterweight 133 is secured in the middle of the bow 132. The bow 132 is slidably mounted on the top edge of the top support ring 125 and also slidably engages with the two first movable slide bars 126. A rotating tray 110 is rotatably mounted on a base 101. A coaxial gear ring disk 102 is also rotatably mounted on the base 101. The gear ring disk 102 and the rotating tray 110 are fixedly coupled via a rotating shaft. A driving disk bracket 106 is also fixedly mounted on the base 101. A gear driving disk 105 is rotatably mounted on the driving disk bracket 106. At least two planetary gears 103 are rotatably mounted on the driving gear disk 105, meshing with the inner side of the gear ring disk 102. A central gear 104 is positioned at the orbital center of all planetary gears 103, meshing with all of the planetary gears 103. A cooperating motor 107 is also fixedly mounted on the driving gear disk 105. The output shaft of the cooperating motor 107 is fixedly coupled to the central gear 104 (power is supplied by a slip ring). A drive motor 109 is also fixedly mounted on the base 101. The output shaft of the drive motor 109 is coupled to the driving gear disk 105 via a transmission belt 108.

[0024] The working principle of the high-precision cutting equipment for ultra-thin metal plates disclosed in the present invention is as follows: the two sides of the plate are inserted into the placement insertion slot 117, and then the pressing beam 114 is pressed down so that the extrusion plate 116 fits with the edge of the plate in the placement insertion slot 117 (the pressing beam 114 and the clamping bar 113 are magnetically matched, so in the default state the extrusion plate 116 will magnetically squeeze the plate in the placement insertion slot 117, and at the same time, the surfaces of the placement insertion slot 117 and the extrusion plate 116 are provided with a rubber coating to increase friction). Then control the cooperative motor 107 or the drive motor 109 (when the cooperative motor 107 and the drive motor 109 are not working, the output shaft can be in a stopped state, and the directional torque can be provided to the rotor according to the force direction of the output shaft to keep it stationary, or a one-way transmission mechanism such as a worm gear is set at the output shaft of the cooperative motor 107 and the drive motor 109, which needs to be used with a gearbox). When the cooperative motor 107 is working, the output shaft will drive the central gear 104 to rotate, and the central gear 104 will drive the gear ring disk 102 to rotate through the planetary gear 103 (the gear active disk 105 is in a stationary state at this time), and the gear ring disk 102 rotates to drive the rotation The tray 110 rotates, and the rotating tray 110 drives the rotating plane 112 to rotate, and then drives the clamping counterweight 119 on the rotating plane 112 to rotate. The rotation of the clamping counterweight 119 will be moved outward by the centrifugal force. At this time, the downward pressure connecting rod 120 will drive the downward pressure beam 114 to move in the direction close to the surface of the rotating plane 112, and the downward pressure is provided to the extrusion plate 116 through the downward sliding rod 115, pressing the edge of the plate tightly in the placement insertion groove 117. At the same time, the clamping bar 113 itself will also move outward by the centrifugal force to straighten the plate (thin plate is easy to fall due to gravity, which will cause the surface of the plate to be uneven), making its surface taut and making the surface more flat.

[0025] During cutting, the belt transmission assembly 129 can drive the laser welding head 130 to move on the second movable slide bar 128 (starting the laser welding head 130 can cut the plate, and the powder generated during the cutting process will also rotate and be separated from the plate by centrifugal force; the shell of the laser welding head 130 is fixed to one side of the belt transmission assembly 129), and at the same time, the laser welding head 130 is controlled to move along the direction of the first movable slide bar 126. It is necessary to adjust the rotation speed of the rotating plane 112, and the rotating plane 11 2 rotates synchronously with the top support ring 125, the first movable slide bar 126, the bow frame 132, and the movable counterweight 133. At this time, it is only necessary to control the rotation speed of the rotating plane 112 to control the centrifugal force exerted on the movable counterweight 133. The movable counterweight 133 pulls the second movable slide bar support block 127 through the bow frame 132, and then pulls the tension spring 131. The position of the second movable slide bar support block 127 (laser welding head 130) on the first movable slide bar 126 is adjusted by balancing the centrifugal force and the tension of the tension spring 131.

[0026] The rotation speed of the rotating plane 112 and the rotating tray 110 can be steplessly adjusted by controlling the rotation speed of the output shaft of the cooperative motor 107 or the output shaft of the drive motor 109 or by controlling the rotation speed of both the output shafts of the cooperative motor 107 and the drive motor 109 simultaneously. For example, the cooperative motor 107 is in the off state, controlling the drive motor 109. The output shaft of the drive motor 109 can directly drive the gear active disk 105 to rotate through the transmission belt 108. Since the central gear 104 cannot rotate relative to the gear active disk 105, the gear ring disk 102, the planetary gear 103, the central gear 104, and the gear active disk 105 form a whole. At this time, the rotating tray 110 can be directly driven to rotate, and the transmission ratio between the rotation speed of the rotating tray 110 and the output shaft of the drive motor 109 is a constant value; if the cooperative motor 107 and the drive motor 109 work at the same time, the cooperative motor 107 can drive the central gear 104 to rotate, and the specific rotation speed is limited by the cooperative motor 107. Therefore, the planetary gear 103 will be restricted in its rotation and revolution. At the same time, the power transmitted from the gear active disk 105 to the gear ring disk 102 is also regulated by the planetary gear 103 (the drive motor 109 serves as the power source, and the cooperative motor 107 serves as the regulation; the same is true in reverse).

Claims

1. A high-precision cutting device for ultra-thin metal sheets, characterized by: The rotating plane (112) includes two symmetrically arranged long chute grooves (121) in the radial direction of the rotating plane (112), and clamping bars (113) are symmetrically arranged at the two long chute grooves (121). Each clamping bar (113) is provided with a placement insertion groove (117). The clamping bar (113) is slidably arranged on the upper surface of the rotating plane (112) along the length direction of the long chute groove (121), and an extrusion plate (116) is arranged in the placement insertion groove (117). The extrusion plate (116) is used to clamp a plate inserted into the placement insertion groove (117); The lower surface of the rotating plane (112) is fixed overhead on the rotating tray (110), and a top support ring (125) is fixed overhead above the rotating plane (112) through a support ring frame (111). Two parallel first movable slide bars (126) are fixedly installed on the inner side of the top support ring (125), and a second movable slide bar support block (127) is slidably sleeved on each of the two first movable slide bars (126). Two parallel second movable slide bars (128) are fixedly installed between the two second movable slide bar support blocks (127), and a laser welding head (130) is slidably provided on the two second movable slide bars (128); The clamping bar (113) is also slidably mounted on two parallel lower slide bars (115), the two lower slide bars (115) are fixedly matched with the placement insertion groove (117), and one end of the two lower slide bars (115) away from the placement insertion groove (117) is fixedly mounted with a downward pressure beam (114); Two parallel clamping counterweight support slide bars (118) are fixedly mounted on the side of the clamping bar (113), and a clamping counterweight (119) is slidably mounted on the clamping counterweight support slide bar (118). The clamping counterweight (119) is movably connected to the lower pressure beam (114) via a lower pressure connecting rod (120), wherein the height of the lower surface of the lower pressure beam (114) is higher than the height of the upper surface of the clamping counterweight (119), and the lower pressure connecting rod (120) is tilted.

2. The high-precision cutting device for ultra-thin metal sheets according to claim 1, characterized in that: Two parallel rack brackets (123) are fixedly mounted on the lower surface of the rotating plane (112), and two racks (122) symmetrical about the center origin of the rotating plane (112) are slidably arranged between the two rack brackets (123). The two racks (122) and the two clamping bars (113) are fixedly matched through the elongated sliding groove (121), wherein the two racks (122) are meshed and driven by a linkage gear (124).

3. The high-precision cutting device for ultra-thin metal sheets according to claim 2, characterized in that: A belt transmission assembly (129) is rotatably provided on the second movable slide bar support block (127) for driving the laser welding head (130) to slide on the second movable slide bar (128); a tension spring (131) is provided around each first movable slide bar (126), and both ends of the tension spring (131) are fixedly matched with the top support ring (125) and the second movable slide bar support block (127).

4. The high-precision cutting device for ultra-thin metal sheets according to claim 3, characterized in that: A bow frame (132) is fixed on one end of the two second movable slide rod support blocks (127) away from the tension spring (131), and a movable counterweight block (133) is fixed in the middle of the bow frame (132), wherein the bow frame (132) is slidably set on the top edge of the top support ring (125), and the bow frame (132) is also slidably matched with the two first movable slide rods (126).

5. The high-precision cutting device for ultra-thin metal sheets according to claim 4, characterized in that: The rotating tray (110) is rotatably mounted on the base (101), and a gear ring disk (102) coaxial with the rotating tray (110) is also rotatably mounted on the base (101). The gear ring disk (102) and the rotating tray (110) are fixedly matched via a rotating shaft. An active disk bracket (106) is also fixedly mounted on the base (101), and a gear active disk (105) is rotatably mounted on the active disk bracket (106).

6. The high-precision cutting device for ultra-thin metal sheets according to claim 5, characterized in that: At least two planetary gears (103) meshing with the inner side of the gear ring disk (102) are rotatably mounted on the gear driving disk (105). A central gear (104) is provided at the revolution center position of all the planetary gears (103). The central gear (104) meshes with all the planetary gears (103). A cooperative motor (107) is also fixedly mounted on the gear driving disk (105). The output shaft of the cooperative motor (107) is fixedly matched with the central gear (104).

7. The high-precision cutting device for ultra-thin metal sheets according to claim 6, characterized in that: A driving motor (109) is also fixedly mounted on the base (101), and an output shaft of the driving motor (109) is coupled to the gear driving disc (105) via a transmission belt (108).

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