Bottom punching device for special-shaped workpiece

Abstract

A feeding mechanism of the bottom punching device comprises a feeding groove, a first air cylinder and a second air cylinder, a pushing channel is arranged on a workbench, an outlet of the feeding groove is communicated with the left side of the middle of the pushing channel, the first air cylinder is arranged at the rear end of the pushing channel, and the second air cylinder is arranged on the left side of the front end of the pushing channel. The material pressing mechanism comprises a pressing plate connected to the mounting frame in a swinging mode, a base plate is fixed to the front end of the pressing plate, a third air cylinder for driving the pressing plate to swing is further fixed to the bottom of the workbench, and a fourth air cylinder is further arranged on the workbench below the pressing plate. By means of the special-shaped workpiece punching device, the punching precision of special-shaped workpieces can be guaranteed, and automatic feeding and discharging of the workpieces are achieved.

Description

Technical Field

[0001] The utility model relates to a bottom punching device for special-shaped workpieces. Background Art

[0002] During factory production and processing, it is often necessary to drill holes in the bottom of wooden workpieces with shaped tops. To facilitate batch processing, such wooden workpieces are generally shaped on a single piece of wood before being cut and drilled. Drilling holes in the bottom of such workpieces presents the following difficulties: workpieces with shaped tops are difficult to clamp, resulting in reduced drilling accuracy; and manual loading and unloading of the workpieces is generally required, which is not conducive to the implementation of automated processing. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a bottom punching device for special-shaped workpieces, which can ensure the punching accuracy of special-shaped workpieces and realize automatic loading and unloading of workpieces.

[0004] The technical solution of the utility model is: a bottom punching device for special-shaped workpieces, comprising a feeding mechanism and a workbench, the workbench is provided with a punching mechanism and a pressing mechanism, the feeding mechanism comprises a feeding trough, a first cylinder and a second cylinder, the feeding trough is tilted and arranged on the left side of the workbench, a plurality of special-shaped workpieces with shaped tops are arranged on the feeding trough, the workbench is provided with a pushing channel, the outlet of the feeding trough is connected to the left middle part of the pushing channel, the first cylinder is arranged at the rear end of the pushing channel, a first pushing block is fixed on the piston rod of the first cylinder, the first pushing block is telescopically connected to the pushing channel front and back, the second cylinder is arranged on the left side of the front end of the pushing channel, a second pushing block is fixed on the piston rod of the second cylinder, the second pushing block is telescopically connected to the pushing channel left and right, the front right side of the pushing channel is connected to the punching seat, and the punching mechanism is arranged in the workbench below the punching seat;

[0005] The pressing mechanism includes a pressing plate swivelingly connected to a mounting frame, a backing plate fixed to the front end of the pressing plate, the mounting frame is arranged on a workbench to the right of the first cylinder and the propulsion channel, a third cylinder is also fixed to the bottom of the workbench, and the piston rod of the third cylinder is connected to the rear end of the pressing plate;

[0006] A fourth cylinder is also provided on the workbench below the pressing plate, and a discharge port is also provided on the workbench in front of the punching seat.

[0007] Furthermore, a slide groove is provided on both sides of the upper end of the mounting frame, and a pressure wheel is connected between the two slide grooves for sliding up and down, and the bottom of the pressure wheel is in contact with the top of the pressure plate.

[0008] Specifically, the punching mechanism moves horizontally left and right and is lifted and lowered and connected to the bottom of the punching seat.

[0009] Furthermore, the punching seat is a plate with a avoidance hole, and the punching seat is fixed on a fixing groove of the workbench.

[0010] Specifically, the length of the first pushing block is greater than the length of the pushing channel.

[0011] Furthermore, a third pushing block is fixed to the end of the piston rod of the fourth cylinder.

[0012] Furthermore, a material guide trough is provided below the discharge port.

[0013] Furthermore, a first baffle plate is provided at the front end of the propulsion channel.

[0014] Furthermore, a second baffle plate is provided on the workbench on the right side of the punching seat.

[0015] Furthermore, a fifth cylinder is provided on the workbench in front of the discharge port, and a third baffle plate is fixed on the piston rod of the fifth cylinder.

[0016] The beneficial effects of the utility model are: it can continuously and automatically load and unload and punch special-shaped workpieces with shapes on the top; before punching, a pad with a suitable avoidance groove or avoidance hole can be selected to avoid damaging the top shape of the special-shaped workpiece; the pad presses the special-shaped workpiece through the pressing plate and the third cylinder to ensure the stability of the workpiece during punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of the utility model;

[0018] Figure 2 It is a structural diagram of the material pressing structure in the utility model;

[0019] Figure 3 It is a structural schematic diagram of a special-shaped workpiece in the utility model.

[0020] In the figure: workbench 1, feeding trough 2, first cylinder 3, second cylinder 4, special-shaped workpiece 5, advancing channel 6, first pusher block 7, second pusher block 8, punching seat 9, mounting frame 10, pressing plate 11, pad 12, third cylinder 13, fourth cylinder 14, discharge port 15, pressure wheel 16, third pusher block 17, first baffle plate 18, second baffle plate 19, fifth cylinder 20, third baffle plate 21. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0022] Combine Figure 1-3As shown, a bottom punching device for special-shaped workpieces includes a feeding mechanism and a workbench 1, wherein the workbench 1 is provided with a punching mechanism and a material pressing mechanism;

[0023] The feeding mechanism includes a feeding trough 2, a first cylinder 3 and a second cylinder 4. The feeding trough 2 is tilted and arranged on the left side of the workbench 1. A plurality of special-shaped workpieces 5 with shaped tops are arranged on the feeding trough 2. A propulsion channel 6 is provided on the workbench 1. The outlet of the feeding trough 2 is connected to the left middle part of the propulsion channel 6. The first cylinder 3 is arranged at the rear end of the propulsion channel 6. A first pushing block 7 is fixed on the piston rod of the first cylinder 3. The first pushing block 7 is telescopically connected to the propulsion channel 6 front and back. The second cylinder 4 is arranged on the left side of the front end of the propulsion channel 6. A second pushing block 8 is fixed on the piston rod of the second cylinder 4. The second pushing block 8 is telescopically connected to the propulsion channel 6 left and right. The front right side of the propulsion channel 6 is connected to the punching seat 9. The punching mechanism is arranged in the workbench below the punching seat 9;

[0024] The workpiece slides into the propulsion channel 6 along the slope of the feeding trough 2. The first cylinder 3 is extended and retracted once to push the workpiece to the front end of the propulsion channel 6. Then the second cylinder 4 is extended and retracted once to push the workpiece from the propulsion channel 6 to the punching seat 9.

[0025] The pressing mechanism includes a pressing plate 11 swingably connected to a mounting frame 10, a backing plate 12 is fixed to the front end of the pressing plate 11, the mounting frame 10 is arranged on the workbench 1 to the right of the first cylinder 3 and the propulsion channel 6, and a third cylinder 13 is also fixed to the bottom of the workbench 1, and the piston rod of the third cylinder 13 is connected to the rear end of the pressing plate 11;

[0026] The piston rod of the third cylinder 13 extends to press the front end of the pressing plate 11 downward, thereby causing the backing plate 12 to press the workpiece on the punching seat 9, and then the punching mechanism is lifted and lowered once to punch a hole at the bottom of the workpiece;

[0027] A fourth cylinder 14 is also provided on the workbench 1 below the pressing plate 11 , and a discharge port 15 is also provided on the workbench 1 in front of the punching seat 9 . After punching is completed, the piston rod of the fourth cylinder 14 is extended and retracted to push the workpiece from the punching seat 9 into the discharge port 15 .

[0028] The beneficial effect of the above structure is that it can continuously and automatically load and unload and punch the special-shaped workpiece 5 with a shape on the top. Before punching, a pad 12 with a suitable avoidance groove or avoidance hole can be selected to avoid damage to the top shape of the special-shaped workpiece 5. The pad 12 presses the special-shaped workpiece 5 through the pressing plate 11 and the third cylinder 13 to ensure the stability of the workpiece during punching.

[0029] In another embodiment, combined Figure 1 and Figure 2As shown, a slide groove is provided on both sides of the upper end of the mounting frame 10, and a pressure wheel 16 is connected between the two slide grooves for sliding up and down. The bottom of the pressure wheel 16 abuts against the top of the pressure plate 11 to reduce the force on the connecting shaft of the pressure plate 11 and avoid deformation of the connecting shaft.

[0030] In another embodiment, the punching mechanism is connected below the punching seat 9 and moves horizontally and vertically to meet the need of punching multiple holes at the bottom of the workpiece.

[0031] In another embodiment, the punching seat 9 is a plate with a avoidance hole, and the punching seat 9 is fixed on the fixing groove of the workbench 1.

[0032] In another embodiment, Figure 1 As shown, the length of the first pusher block 7 is greater than the length of the propulsion channel 6 to prevent the workpiece from sliding into between the first pusher block 7 and the first cylinder 3 .

[0033] In another embodiment, Figure 2 As shown, a third pushing block 17 is also fixed to the end of the piston rod of the fourth cylinder 14 .

[0034] In another embodiment, a material guide trough is further provided below the discharge port 15 , and the workpiece is output from the discharge port 15 and the material guide trough.

[0035] In another embodiment, Figure 1 As shown, a first baffle plate 18 is further provided at the front end of the propulsion channel 6 to prevent the workpiece from falling out.

[0036] In another embodiment, Figure 1 As shown, a second baffle plate 19 is further provided on the workbench 1 to the right of the punching seat 9 to prevent the workpiece from falling out.

[0037] In another embodiment, combined Figure 1 and Figure 2 As shown, a fifth cylinder 20 is also provided on the workbench 1 in front of the discharge port 15, and a third baffle plate 21 is fixed on the piston rod of the fifth cylinder 20. When the workpiece is punched, the piston rod of the fifth cylinder 20 extends to make the third baffle plate 21 abut against the front end of the workpiece to improve the stability of the workpiece during punching.

Claims

1. A bottom punching device for a special-shaped workpiece, comprising a feeding mechanism and a workbench (1), wherein the workbench (1) is provided with a punching mechanism and a pressing mechanism, and is characterized in that: The feeding mechanism comprises a feeding trough (2), a first cylinder (3) and a second cylinder (4); the feeding trough (2) is tiltedly arranged on the left side of the workbench (1); a plurality of special-shaped workpieces (5) with shaped tops are arranged on the feeding trough (2); a propulsion channel (6) is provided on the workbench (1); the outlet of the feeding trough (2) is connected to the left side of the middle part of the propulsion channel (6); the first cylinder (3) is arranged at the rear end of the propulsion channel (6); a first pushing block (7) is fixed on the piston rod of the first cylinder (3); the first pushing block (7) is connected to the propulsion channel (6) in a telescopic manner; the second cylinder (4) is arranged on the left side of the front end of the propulsion channel (6); a second pushing block (8) is fixed on the piston rod of the second cylinder (4); the second pushing block (8) is connected to the propulsion channel (6) in a telescopic manner; the front right side of the propulsion channel (6) is connected to the punching seat (9); the punching mechanism is arranged in the workbench below the punching seat (9); The material pressing mechanism comprises a pressing plate (11) oscillatingly connected to a mounting frame (10), a backing plate (12) being fixed to the front end of the pressing plate (11), the mounting frame (10) being arranged on a workbench (1) on the right side of the first cylinder (3) and the propulsion channel (6), a third cylinder (13) being fixed to the bottom of the workbench (1), and a piston rod of the third cylinder (13) being connected to the rear end of the pressing plate (11); A fourth cylinder (14) is also provided on the workbench (1) below the pressing plate (11), and a discharge port (15) is also provided on the workbench (1) in front of the punching seat (9).

2. The bottom punching device for a special-shaped workpiece according to claim 1, wherein: A slide groove is provided on both sides of the upper end of the mounting frame (10), and a pressure wheel (16) is connected between the two slide grooves for sliding up and down, and the bottom of the pressure wheel (16) is in contact with the top of the pressure plate (11).

3. The bottom punching device for a special-shaped workpiece according to claim 2, wherein: The punching mechanism is connected below the punching seat (9) so as to move horizontally and vertically.

4. The bottom punching device for a special-shaped workpiece according to claim 3, wherein: The punching seat (9) is a plate body with a position-avoiding hole, and the punching seat (9) is fixed on a fixing groove of the workbench (1).

5. The bottom punching device for a special-shaped workpiece according to claim 4, wherein: The length of the first pushing block (7) is greater than the length of the pushing channel (6).

6. The bottom punching device for a special-shaped workpiece according to claim 5, wherein: A third pushing block (17) is also fixed to the end of the piston rod of the fourth cylinder (14).

7. The bottom punching device for a special-shaped workpiece according to claim 6, wherein: A material guide trough is also provided below the discharge port (15).

8. The bottom punching device for a special-shaped workpiece according to claim 7, wherein: A first material blocking plate (18) is also provided at the front end of the propulsion channel (6).

9. The bottom punching device for a special-shaped workpiece according to claim 8, wherein: A second material blocking plate (19) is also provided on the workbench (1) on the right side of the punching seat (9).

10. The bottom punching device for a special-shaped workpiece according to claim 9, wherein: A fifth cylinder (20) is also provided on the workbench (1) in front of the discharge port (15), and a third baffle plate (21) is fixed on the piston rod of the fifth cylinder (20).

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