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CN-121988914-A - Cutting device is used in furniture production

CN121988914ACN 121988914 ACN121988914 ACN 121988914ACN-121988914-A

Abstract

The invention provides a cutting device for furniture production, which comprises a machine tool provided with a laser cutting unit, wherein a blanking device is arranged on the machine tool, the blanking device comprises a supporting seat and a pushing unit, the pushing unit comprises a first pushing rod and a second pushing rod, the first pushing rod and the second pushing rod are both arranged to slide along the height direction of the machine tool, a plurality of first collision heads are fixedly arranged on the first pushing rod, a plurality of second collision heads are fixedly arranged on the second pushing rod, the first pushing rod and the second pushing rod are driven by a driving mechanism, the driving mechanism has a first working mode, and in the first working mode, the driving mechanism drives the first pushing rod and the second pushing rod to generate a pushing action with a preset mechanical time difference, and enables the first collision heads and the second collision heads to alternately abut against a plate. According to the invention, through the time sequence control multi-point composite striking mechanism, the nodes generate local torsional deformation and fatigue pre-weakening, and the micro-connection nodes are forced to generate brittle fracture.

Inventors

  • Bao Lingbo

Assignees

  • 上海美巢智能科技有限公司

Dates

Publication Date
20260508
Application Date
20260409

Claims (7)

  1. 1. The cutting device for furniture production comprises a machine tool provided with a laser cutting unit, wherein a plate can move along the length direction of the machine tool, a blanking device is arranged on the machine tool and comprises a supporting seat and a pushing unit, and is characterized in that: The pushing unit comprises a first pushing rod and a second pushing rod, the first pushing rod and the second pushing rod are both arranged to slide along the height direction of the machine tool, a plurality of first collision heads are fixedly arranged on the first pushing rod, a plurality of second collision heads are fixedly arranged on the second pushing rod, and the first pushing rod and the second pushing rod are driven by a driving mechanism; The driving mechanism is provided with a first working mode, in the first working mode, the driving mechanism drives the first pushing rod and the second pushing rod to generate a pushing action with a preset mechanical time difference, the first collision head and the second collision head are in alternate abutting joint with the plate, and the abutting points of the first collision head and the second collision head correspond to the eccentric positions of the plate.
  2. 2. The cutting device for furniture production according to claim 1, wherein the driving mechanism further has a second working mode, and in the second working mode, the driving mechanism drives the first pushing rod and the second pushing rod to synchronously push down; The first collision head and the second collision head are simultaneously abutted with the plate.
  3. 3. The cutting device for furniture production according to claim 2, wherein the driving mechanism comprises a first cam shaft and a second cam shaft which are rotatably arranged, a first cam is fixedly arranged on the first cam shaft, and the first cam is abutted against the first push rod; a second cam is fixedly arranged on the second cam shaft and is abutted against the second push rod; The driving mechanism further comprises a driving wheel, and the driving wheel is in transmission connection with the first cam shaft.
  4. 4. The cutting device for furniture production according to claim 3, wherein a first driven wheel is fixedly arranged on the first cam shaft, the driving mechanism is further provided with a second driven wheel, and the first driven wheel is in transmission connection with the second driven wheel; the second driven wheel comprises a transmission part which can move along the thickness direction of the second driven wheel, and the transmission part can be selectively positioned at a first station or a second station; When the transmission part is in the first station, the driving mechanism is in a first working mode; When the transmission part is in the second station, the driving mechanism is in a second working mode.
  5. 5. The cutting device for furniture production according to claim 4, wherein the transmission part is eccentrically provided with a screw driving piece, and the second cam shaft is provided with a toggle rod corresponding to the screw driving piece; when the transmission part is at the first station, the spiral driving piece is in transmission connection with the toggle rod.
  6. 6. The cutting device for furniture production according to claim 5, wherein the transmission part is fixedly provided with a first end face gear ring, and the second cam shaft is fixedly provided with a second end face gear ring; When the transmission part is in the second station, the first end face gear ring is meshed with the second end face gear ring, and the spiral driving piece is not in transmission connection with the poking rod.
  7. 7. A cutting device for furniture production according to claim 6, wherein the screw drive is slidably and non-rotatably arranged on the transmission part, And the second driven wheel is also provided with an electric push rod for driving the transmission part.

Description

Cutting device is used in furniture production Technical Field The invention relates to the technical field of furniture production and cutting, in particular to a cutting device for furniture production. Background The optical fiber laser cutting technology is widely applied to the fields of high-precision sheet material forming such as furniture manufacturing, sheet metal machining and the like. In the actual cutting process, in order to ensure the stability of the workpiece and prevent deformation caused by thermal stress, a micro-connection process is generally adopted, that is, a very small part of material is reserved on a cutting track and is not cut completely, so that the formed workpiece and the plate substrate are kept physically connected. Therefore, after cutting is completed, the micro-connection nodes are required to be disconnected through an additional blanking device so as to realize the final separation of the workpieces. At present, a vertical pushing mechanism is commonly adopted in a mechanized blanking device in the industry. The basic working principle is that the ejector rod is driven by a power piece (such as a cylinder, a hydraulic rod or a spring), forward thrust vertical to the plate surface is applied to the surface of a workpiece from top to bottom, and the micro-connection point is forced to be broken by means of pure shearing force. However, since the shearing strength of high-strength plates such as metal or thick wood plates in the thickness direction is high, the blanking mode of vertical pushing is not enough in practical application, and in order to cut off the high-strength micro-connection points, the vertical pushing mechanism must apply a large concentrated load to the workpiece. When a workpiece with higher surface finish requirements is processed, the excessive contact stress of the end part is extremely easy to leave irreversible elastic indentation or scratch on the surface of the workpiece, so that the yield of the final product is affected. Disclosure of Invention The invention aims to provide a cutting device for furniture production, which solves the technical problems that the existing blanking equipment is single in stress mode, is easy to crush the surface of a plate and is difficult to adapt to working conditions of different materials and thicknesses. In order to achieve the above purpose, the present invention provides the following technical solutions: the cutting device for furniture production comprises a machine tool provided with a laser cutting unit, wherein a plate can move along the length direction of the machine tool, a blanking device is arranged on the machine tool, and the blanking device comprises a supporting seat and a pushing unit; The pushing unit comprises a first pushing rod and a second pushing rod, the first pushing rod and the second pushing rod are both arranged to slide along the height direction of the machine tool, a plurality of first collision heads are fixedly arranged on the first pushing rod, a plurality of second collision heads are fixedly arranged on the second pushing rod, and the first pushing rod and the second pushing rod are driven by a driving mechanism; The driving mechanism is provided with a first working mode, in the first working mode, the driving mechanism drives the first pushing rod and the second pushing rod to generate a pushing action with a preset mechanical time difference, the first collision head and the second collision head are in alternate abutting joint with the plate, and the abutting points of the first collision head and the second collision head correspond to the eccentric positions of the plate. The driving mechanism is also provided with a second working mode, in the second working mode, the driving mechanism drives the first pushing rod and the second pushing rod to synchronously push down, and the first collision head and the second collision head are simultaneously abutted against the plate. The driving mechanism comprises a first cam shaft and a second cam shaft which are rotatably arranged, wherein a first cam is fixedly arranged on the first cam shaft and is abutted against the first push rod, a second cam is fixedly arranged on the second cam shaft and is abutted against the second push rod, and the driving mechanism further comprises a driving wheel, and the driving wheel is in transmission connection with the first cam shaft. The first cam shaft is fixedly provided with a first driven wheel, the driving mechanism is further provided with a second driven wheel, the first driven wheel is in transmission connection with the second driven wheel, the second driven wheel comprises a transmission part capable of moving along the thickness direction of the second driven wheel, the transmission part can be selectively positioned at a first station or a second station, when the transmission part is positioned at the first station, the driving mechanism is positioned in a first working mod