Automatic material taking component for CNC machining

Abstract

The utility model discloses an automatic material taking component for CNC (computer numerical control) machining, which comprises a mounting seat, a sliding rod and a driving part for driving the sliding rod to vertically slide are arranged at the bottom of the mounting seat, and a mechanical claw for clamping a workpiece under the driving of the driving part is arranged on the outer side of the bottom of the mounting seat; when the device is close to a workpiece, the pressure plate at the bottom of the telescopic rod presses the negative pressure suction cup on the upper surface of the workpiece, the telescopic rod pushes the piston to start to compress and slide upwards in the sliding cavity, and the electromagnetic valve in the air return hole is in an open state, so that air in the sliding cavity above the piston is exhausted through the air return hole, and a negative pressure environment is formed in the sliding cavity below the piston; and air in the negative-pressure suction cup is pumped out through the second air hole and the first air hole, so that the suction hole in the bottom of the negative-pressure suction cup sucks the workpiece, the clamping action of the mechanical claw is assisted, and the clamping firmness is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to CNC processing, and particularly relates to an automatic material taking component for CNC processing. Background Art

[0002] CNC machining stands for Computer Numerical Control Machining. A pre-programmed machining program is input into the CNC machine's control system. The control system precisely controls the machine's axes (such as the X, Y, and Z axes) according to the program's instructions, while also controlling the robot to pick up and place workpieces.

[0003] For example, the patent with announcement number CN214290270U discloses an automatic material picking device for metal product processing, which includes a base, a first motor, a first bracket, a groove, a first mounting plate, a lower mold, a side plate, a first hydraulic cylinder, a second mounting plate and an upper mold. A groove is provided at the upper end of the base, the first motor is installed in the groove through the first bracket, the top of the first bracket is installed with a first mounting plate, a plurality of lower molds are installed on the first mounting plate, the side plate is installed at the upper end of the base, the first hydraulic cylinder is installed on the side end of the side plate, and the output end of the first hydraulic cylinder is installed with a second mounting plate; it also includes a material picking device, which is installed on the side plate, and the material picking device includes a second motor, a connecting plate, a second hydraulic cylinder, an electromagnet and an electric wire. The output end of the second motor is screwed to the connecting plate, and a hole is provided on the connecting plate.

[0004] The existing automatic material picking device technology has the following problems: the above-mentioned automatic material picking device drives the electromagnet to descend through the output end of the hydraulic cylinder, and energizes the electromagnet by turning on the power supply. The electromagnet falls on the lower mold and adsorbs the processed metal product, thereby achieving the material picking effect. This material picking method is only suitable for the material picking processing of magnetic metal workpieces and has great limitations. Other existing technologies mostly use mechanical claws for clamping. The clamping method is relatively simple, and there are fewer fixed force points for clamping. Therefore, the firmness of the workpiece when clamping is poor. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic material picking component for CNC machining, so as to solve the problems of material picking limitations and poor firmness when clamping the workpiece proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic material picking component for CNC machining, comprising a mounting seat, a sliding rod and a driving member for driving the sliding rod to slide vertically are provided at the bottom of the mounting seat, a mechanical claw for clamping the workpiece under the drive of the driving member is provided on the outer side of the bottom of the mounting seat, a telescopic member capable of telescopically sliding relative to the sliding rod and the mounting seat is provided inside the sliding rod, and a negative pressure suction member is provided at the bottom of the telescopic member for sucking the workpiece by cooperating with the compression of the telescopic member.

[0007] Preferably, a fixed hinge seat is fixed to the bottom of the mounting seat, and a sliding cavity is provided on the inner side of the mounting seat.

[0008] Preferably, the slide rod is slidably arranged in a fixed hinge seat, and a movable hinge seat is fixed to the bottom of the slide rod.

[0009] Preferably, the driving member includes a first electromagnet and a second electromagnet, the first electromagnet is fixed to the bottom of the fixed hinge seat, the second electromagnet is fixed to the outside of the sliding rod, and the first electromagnet and the second electromagnet are elastically connected by a first spring.

[0010] Preferably, the mechanical claw includes a clamping claw, the top of which is hinged with a pair of parallel first rocker arms, both of which are hinged to the bottom of a fixed hinge seat, one of which is hinged with a second rocker arm, and the end of the second rocker arm away from the first rocker arm is hinged to a movable hinge seat.

[0011] Preferably, the negative pressure suction piece includes a negative pressure suction cup, which is fixed to the outer side of the bottom of the telescopic piece. A pressure sleeve is fixed to the inner side of the bottom of the negative pressure suction cup, and a plurality of suction holes distributed in a ring around the pressure sleeve are opened at the bottom of the negative pressure suction cup.

[0012] Preferably, the telescopic part includes a telescopic rod, the bottom of the telescopic rod is fixed to a pressure plate limitedly located in the pressure sleeve, the top of the telescopic rod passes through the sliding rod and extends into the sliding cavity, and the top of the telescopic rod is fixed with a piston slidingly arranged in the sliding cavity, and the piston is elastically connected to the inner wall of the sliding cavity through a second spring.

[0013] Preferably, a first air hole communicating with the inner cavity of the negative pressure suction cup is provided at the bottom of the telescopic rod, a sliding cavity communicating with the bottom of the piston is provided at the top of the telescopic rod, and an air return hole communicating with the sliding cavity above the piston is provided at the top of the mounting seat, and an electromagnetic valve is provided in the air return hole.

[0014] Compared with the prior art, the present invention provides an automatic material-retrieving component for CNC machining, which has the following beneficial effects:

[0015] When the utility model approaches the workpiece, the pressure plate at the bottom of the telescopic rod presses the negative pressure suction cup against the upper surface of the workpiece, and the telescopic rod pushes the piston to start compression and slide upward in the sliding cavity. At this time, the solenoid valve in the return air hole is in an open state, so that the air in the sliding cavity above the piston is discharged through the return air hole, and a negative pressure environment is formed in the sliding cavity below the piston, and the air inside the negative pressure suction cup is extracted through the second air hole and the first air hole, so that the workpiece is sucked by the suction hole at the bottom of the negative pressure suction cup, thereby assisting the clamping action of the mechanical claw and improving the firmness of the clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of an automatic material-retrieving component for CNC machining proposed by the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of an automatic material-retrieving component for CNC machining proposed by the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the sliding rod and the driving member proposed in the utility model;

[0020] Figure 4 This is a schematic diagram of the mechanical claw structure proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the negative pressure suction piece proposed in the utility model;

[0022] Figure 6 This is a schematic diagram of the telescopic member structure proposed in the utility model;

[0023] In the figure: 1. Mounting seat; 11. Sliding cavity; 12. Return air hole; 13. Fixed hinge seat; 14. Solenoid valve; 2. Sliding rod; 21. Movable hinge seat; 3. Driving member; 31. First electromagnet; 32. Second electromagnet; 33. First spring; 4. Mechanical claw; 41. Clamping claw; 42. First rocker arm; 43. Second rocker arm; 5. Negative pressure suction member; 51. Negative pressure suction cup; 52. Pressing sleeve; 53. Suction hole; 6. Telescopic member; 61. Telescopic rod; 62. Pressure plate; 63. Piston; 64. First air hole; 65. Second air hole; 66. Second spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 and Figure 2 The utility model provides a technical solution: an automatic material picking component for CNC machining, comprising a mounting base 1, a slide rod 2 and a driving member 3 for driving the slide rod 2 to slide vertically are provided at the bottom of the mounting base 1, a mechanical claw 4 for clamping the workpiece under the drive of the driving member 3 is provided on the outer side of the bottom of the mounting base 1, a telescopic member 6 is provided inside the slide rod 2 and can telescopically slide relative to the slide rod 2 and the mounting base 1, and a negative pressure suction member 5 is provided at the bottom of the telescopic member 6 for sucking the workpiece by cooperating with the compression of the telescopic member 6.

[0026] See also Figure 3 A fixed hinge seat 13 is fixed at the bottom of the mounting seat 1, a sliding cavity 11 is provided on the inner side of the mounting seat 1, the slide rod 2 is slidably arranged in the fixed hinge seat 13, and a movable hinge seat 21 is fixed at the bottom of the slide rod 2. The driving member 3 includes a first electromagnet 31 and a second electromagnet 32. The first electromagnet 31 is fixed to the bottom of the fixed hinge seat 13, and the second electromagnet 32 ​​is fixed to the outside of the slide rod 2. The first electromagnet 31 and the second electromagnet 32 ​​are elastically connected by a first spring 33. After the negative pressure suction member 5 absorbs the workpiece, the first electromagnet 31 and the second electromagnet 32 ​​at the bottom of the fixed hinge seat 13 start to be energized, thereby overcoming the elastic force of the first spring 33 and driving the slide rod 2 to move upward relative to the mounting seat 1. After reaching the specified position, the first electromagnet 31 and the second electromagnet 32 ​​are de-energized.

[0027] See also Figure 4 The mechanical claw 4 includes a clamping claw 41, and a pair of parallel first rocker arms 42 are hinged on the top of the clamping claw 41. The two first rocker arms 42 are hinged to the bottom of the fixed hinge seat 13. A second rocker arm 43 is hinged on one of the first rocker arms 42, and the end of the second rocker arm 43 away from the first rocker arm 42 is hinged to the movable hinge seat 21. After the first electromagnet 31 and the second electromagnet 32 ​​are energized, they can overcome the elastic force of the first spring 33 and drive the slide bar 2 to move upward relative to the mounting seat 1, and then pull the first rocker arm 42 through the second rocker arm 43, and under the action of the first rocker arm 42, the clamping claw 41 is pulled to clamp the workpiece.

[0028] See also Figure 5The negative pressure suction piece 5 includes a negative pressure suction cup 51, which is fixed to the outside of the bottom of the telescopic piece 6. A pressure sleeve 52 is fixed to the inside of the bottom of the negative pressure suction cup 51. The bottom of the negative pressure suction cup 51 is provided with a plurality of suction holes 53 distributed in a ring around the pressure sleeve 52.

[0029] See also Figure 6 The telescopic member 6 includes a telescopic rod 61, the bottom of the telescopic rod 61 is fixed with a pressure plate 62 limitedly located in the pressure sleeve 52, the top of the telescopic rod 61 passes through the slide rod 2 and extends into the slide cavity 11, and the top of the telescopic rod 61 is fixed with a piston 63 slidably set in the slide cavity 11, and the piston 63 is elastically connected to the inner wall of the slide cavity 11 through a second spring 66.

[0030] See also Figure 2 and Figure 6 The bottom of the telescopic rod 61 is provided with a first air hole 64 communicating with the inner cavity of the negative pressure suction cup 51, the top of the telescopic rod 61 is provided with a slide cavity 11 communicating with the bottom of the piston 63, the top of the mounting seat 1 is provided with a return air hole 12 communicating with the slide cavity 11 above the piston 63, and a solenoid valve 14 is provided in the return air hole 12. The pressure plate 62 at the bottom of the telescopic rod 61 presses the negative pressure suction cup 51 on the upper surface of the workpiece, and the telescopic rod 61 pushes the piston 63 to start compression 66 and slide upward in the slide cavity 11. At this time, the solenoid valve 14 in the return air hole 12 is in the open state, so that the air in the slide cavity 11 above the piston 63 is discharged through the return air hole 12, and a negative pressure environment is formed in the slide cavity 11 below the piston 63, and the air inside the negative pressure suction cup 51 is extracted through the second air hole 65 and the first air hole 64, so that the workpiece is sucked by the suction hole 53 at the bottom of the negative pressure suction cup 51.

[0031] The working principle and use process of the present invention are as follows: when the workpiece reaches the material picking position, the present invention is driven by the manipulator to move downward toward the workpiece, and the pressure plate 62 at the bottom of the telescopic rod 61 presses the negative pressure suction cup 51 on the upper surface of the workpiece. The telescopic rod 61 pushes the piston 63 to start compression 66 and slide upward in the sliding cavity 11. At this time, the solenoid valve 14 in the return air hole 12 is in the open state, so that the air in the sliding cavity 11 above the piston 63 is discharged through the return air hole 12, and a negative pressure environment is formed in the sliding cavity 11 below the piston 63, and the air inside the negative pressure suction cup 51 is extracted through the second air hole 65 and the first air hole 64, so that the workpiece is sucked by the suction hole 53 at the bottom of the negative pressure suction cup 51. The first electromagnet 31 and the second electromagnet 32 ​​at the bottom of the fixed hinge seat 13 start to be energized, thereby overcoming the elastic force of the first spring 33 and driving the slide bar 2 to move upward relative to the mounting seat 1, and then pulling the first rocker bar 42 through the second rocker bar 43. Under the action of the first rocker bar 42, the clamping claw 41 is pulled to clamp the workpiece, and then the solenoid valve 14 starts to close the return air hole 12, so that the negative pressure suction piece 5 continues to suck the workpiece, and then it is sent to the designated workstation by the robot arm. The first electromagnet 31 and the second electromagnet 32 ​​are de-energized, and the mechanical claw 4 releases the workpiece. At the same time, the solenoid valve 14 in the return air hole 12 is opened, so that external air can enter the sliding cavity 11, so that the negative pressure suction piece 5 automatically releases the workpiece.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic material removal component for CNC machining, comprising a mounting seat (1), characterized in that: The bottom of the mounting seat (1) is provided with a slide bar (2) and a driving member (3) for driving the slide bar (2) to slide vertically; the outer side of the bottom of the mounting seat (1) is provided with a mechanical claw (4) for clamping the workpiece under the drive of the driving member (3); the inside of the slide bar (2) is provided with a telescopic member (6) capable of telescopically sliding relative to the slide bar (2) and the mounting seat (1); the bottom of the telescopic member (6) is provided with a negative pressure suction member (5) for sucking the workpiece in response to the compression of the telescopic member (6).

2. The automatic material removal component for CNC machining according to claim 1, characterized in that: A fixed hinge seat (13) is fixed to the bottom of the mounting seat (1), and a sliding cavity (11) is provided on the inner side of the mounting seat (1).

3. The automatic material removal component for CNC machining according to claim 2, characterized in that: The slide rod (2) is slidably arranged in a fixed hinge seat (13), and a movable hinge seat (21) is fixed to the bottom of the slide rod (2).

4. The automatic material removal component for CNC machining according to claim 1, characterized in that: The driving member (3) includes a first electromagnet (31) and a second electromagnet (32), wherein the first electromagnet (31) is fixed to the bottom of the fixed hinge seat (13), and the second electromagnet (32) is fixed to the outside of the slide bar (2), and the first electromagnet (31) and the second electromagnet (32) are elastically connected via a first spring (33).

5. The automatic material removal component for CNC machining according to claim 3, characterized in that: The mechanical claw (4) includes a clamping claw (41), the top of the clamping claw (41) is hinged with a pair of parallel first swing rods (42), the two first swing rods (42) are hinged to the bottom of a fixed hinge seat (13), one of the first swing rods (42) is hinged with a second swing rod (43), and the end of the second swing rod (43) away from the first swing rod (42) is hinged to a movable hinge seat (21).

6. The automatic material removal component for CNC machining according to claim 2, characterized in that: The negative pressure suction piece (5) comprises a negative pressure suction cup (51), which is fixed to the outer side of the bottom of the telescopic piece (6), a pressure sleeve (52) is fixed to the inner side of the bottom of the negative pressure suction cup (51), and a plurality of suction holes (53) distributed in an annular manner around the pressure sleeve (52) are opened at the bottom of the negative pressure suction cup (51).

7. The automatic material removal component for CNC machining according to claim 6, characterized in that: The telescopic member (6) includes a telescopic rod (61), the bottom of the telescopic rod (61) is fixed to a pressure plate (62) limitedly located in the pressure sleeve (52), the top of the telescopic rod (61) passes through the slide rod (2) and extends into the slide cavity (11), and the top of the telescopic rod (61) is fixed with a piston (63) slidably arranged in the slide cavity (11), and the piston (63) is elastically connected to the inner wall of the slide cavity (11) through a second spring (66).

8. The automatic material removal component for CNC machining according to claim 7, characterized in that: The bottom of the telescopic rod (61) is provided with a first air hole (64) communicating with the inner cavity of the negative pressure suction cup (51); the top of the telescopic rod (61) is provided with a sliding cavity (11) communicating with the lower part of the piston (63); the top of the mounting seat (1) is provided with an air return hole (12) communicating with the sliding cavity (11) above the piston (63); and the air return hole (12) is provided with an electromagnetic valve (14).

Images