CN115156344A - High-machining-precision numerical control bending machine for metal plates - Google Patents

Abstract

The invention discloses a numerical control bending machine for sheet metal with high machining precision, which relates to the technical field of sheet metal bending machines and provides a scheme that the numerical control bending machine comprises a base, wherein a moving mechanism is installed at the top of the base and comprises a first groove formed in the top of the base, the inner wall of the first groove is rotatably connected with a screw rod, the outer part of the screw rod is rotatably connected with a moving block, a machining frame is fixed at the top of the moving block, a plurality of machining tables are fixed on the inner wall of the bottom of the machining frame, a bending mechanism is installed at the top of the machining frame and comprises a hydraulic cylinder mechanism fixedly connected with the top of the machining frame; the automatic rolling and material changing device can automatically roll and change the indentation-free film without manual replacement, is simple and convenient, ensures the production efficiency, automatically changes the workbench according to the steps without manual movement, is more convenient, saves time and labor, can adjust the height of the bending block, and avoids the situation that the bending piece upwarps and is knocked and damaged.

Description

A CNC bending machine for sheet metal with high machining accuracy

technical field

The invention relates to the technical field of sheet metal bending machines, in particular to a numerical control bending machine for sheet metal with high processing precision.

Background technique

The bending machine is a machine that can bend sheet metal. Its structure mainly includes a bracket, a workbench and a clamping plate. The workbench is placed on the bracket, and the workbench is composed of a base and a bending block.

However, when the existing sheet metal parts are bent, bending marks are easily left on the sheet metal parts. Generally, a non-indentation film pad is required to be bent on the top of the sheet metal parts to solve the problem of traces. However, the non-indentation film cannot be used after a certain number of times, so it needs to be replaced manually, which is cumbersome and affects the production efficiency. The multiple workbenches of the bending machine are separated by a certain distance, and the bending parts are bent. At that time, if the processing table needs to be replaced, then it is necessary to manually walk over to continue processing, which is very inconvenient, time-consuming and labor-intensive. When the bending part is bent, the edge of the bending part will warp, and the upward warping height of different bending parts is different. , If the upturn is too high, it will withstand the structure above, causing damage to the bending parts.

SUMMARY OF THE INVENTION

The invention proposes a numerical control bending machine for sheet metal with high processing precision, so as to solve the above shortcomings in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions:

A CNC bending machine for sheet metal with high processing precision, comprising a base, a moving mechanism is installed on the top of the base, the moving mechanism comprises a groove 1 opened on the top of the base, and the inner wall of the groove 1 is rotatably connected with a A screw, a moving block is rotatably connected to the outside of the screw, a processing frame is fixed on the top of the moving block, a plurality of processing tables are fixed on the bottom inner wall of the processing frame, and a bending mechanism is installed on the top of the processing frame, The bending mechanism includes a hydraulic cylinder mechanism that is fixedly connected to the top of the processing frame, an automatic winding mechanism is installed on the left side of the processing frame, and the automatic winding mechanism includes a motor fixing frame that is fixedly connected to the left side of the processing frame. A motor one is fixed inside the motor fixing frame, and a winding shaft is fixed at the output end of the motor one.

Further, the moving mechanism also includes a second motor fixedly connected to the inner wall of the first groove, and one end of the output shaft of the second motor is fixedly connected with the screw rod, and the second motor drives the screw rod to rotate to switch the processing table.

Further, the bending mechanism also includes a connecting block that is fixedly connected to the bottom end of the hydraulic cylinder mechanism, the bottom of the connecting block is provided with a plurality of grooves 2, and the inside of the groove 2 is sleeved with an adjustment block, so The surface of the adjustment block is provided with a plurality of bayonet openings, the front side of the groove 2 is provided with a through opening, the interior of the through opening and the bayonet opening is sleeved with a clamping block, and the bottom of the adjustment block is fixed with a folded opening. Bend the block, pull out the clamp block, align the adjustment block bayonet with the through port as required, and use the clamp block to fix it to prevent the bending part from contacting the top connecting block when bending occurs.

Further, the automatic winding mechanism also includes a box body fixedly connected with the winding shaft, the inner wall of the box body is fixed with a spring, the bottom end of the spring is fixed with a pressing plate, and the inner sleeve of the spring is provided with a limiter. The top end of the limit rod is fixedly connected with the box body, the limit rod is sleeved inside the pressing plate, and two fixing plates are fixed on the front side and the rear side of the processing frame. A roller is rotatably connected between the fixed plates on one side, a support plate is fixed on the front side of the processing frame, and a material shaft is rotatably connected to the right side of the support plate. The non-indentation film is pulled, unloaded and rolled to realize automatic film change without manual film change.

Further, a push rod motor 1 is fixed on the top of the base, a push rod motor connecting block is fixed on the top of the push rod motor 1, and a push rod motor 2 is fixed on the front side of the push rod motor connecting block. A size limit plate is fixed on the front side of the push rod motor two, and the size limit plate moves according to the bending size of the bending part to limit the bending machine.

Further, a control panel is fixed on one side of the base, and the control panel is electrically connected with the first motor, the second motor, the first push rod motor, the second push rod motor and the hydraulic cylinder mechanism, and the control panel controls the above structure to start and close. .

Further, the bottom of the pressing plate is provided with anti-skid lines.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, by installing a moving mechanism and a bending mechanism, the moving mechanism drives the screw to rotate through the second motor to switch the processing table, and the bending mechanism bends the bending part through the hydraulic cylinder mechanism, and the height of the adjustment block can also be adjusted, Avoid upturning and damage to the bending parts during bending.

2. In the present invention, by installing an automatic rewinding mechanism, the automatic rewinding mechanism drives the rewinding shaft to rotate through the motor, and pulls and unwinds the non-indentation film on the material shaft to realize automatic film change without manual film change, which is simple and convenient. save time and energy.

To sum up, the equipment is novel in design and simple in operation. The equipment can automatically rewind and refill the non-indentation film without manual replacement, which is simple and convenient, and ensures production efficiency. It is convenient, time-saving and labor-saving, and the height of the bending block can be adjusted to avoid the occurrence of upturned and damaged bending parts.

Description of drawings

Fig. 1 is the left front three-dimensional structure schematic diagram of a kind of CNC bending machine for sheet metal with high machining accuracy proposed by the present invention;

2 is a schematic diagram of a right rear three-dimensional structure of a CNC bending machine for sheet metal with high machining accuracy proposed by the present invention;

FIG. 3 is a schematic side view of the structure of a CNC bending machine for sheet metal with high machining accuracy proposed by the present invention;

FIG. 4 is an enlarged structural schematic diagram of the position A in FIG. 2 of a CNC bending machine for sheet metal with high machining accuracy proposed by the present invention;

FIG. 5 is a schematic view of the front structure of a CNC bending machine for sheet metal with high machining accuracy proposed by the present invention.

In the figure: 1, base; 2, moving mechanism; 21, groove one; 22, motor two; 23, screw rod; 3, processing frame; 4, processing table; 5, bending mechanism; 51, hydraulic cylinder mechanism; 52 , connecting block; 53, bending block; 54, bayonet; 55, clamping block; 6, automatic winding mechanism; 601, motor fixing frame; 602, motor one; 603, winding shaft; 604, box body; 605, Spring; 606, limit rod; 607, press plate; 608, fixed plate; 609, roller; 610, support plate; 611, material shaft; 7, push rod motor one; 8, push rod motor connection block; 9 , Push rod motor 2; 10. Size limit plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation are therefore not to be construed as limitations of the present invention.

Example 1

Referring to Figure 1-3: a CNC bending machine for sheet metal with high machining accuracy, including a base 1, a moving mechanism 2 is installed on the top of the base 1, and the moving mechanism 2 includes a groove 1 21 opened on the top of the base 1, the groove A screw 23 is rotatably connected to the inner wall of the one 21, and a moving block is rotatably connected to the outside of the screw 23. A processing frame 3 is fixed on the top of the moving block, and a plurality of processing tables 4 are fixed on the inner wall of the bottom of the processing frame 3. The top of the processing frame 3 is installed There is a bending mechanism 5, the bending mechanism 5 includes a hydraulic cylinder mechanism 51 fixedly connected to the top of the processing frame 3, an automatic winding mechanism 6 is installed on the left side of the processing frame 3, and the automatic winding mechanism 6 includes a left side of the processing frame 3. A motor fixing frame 601 is fixedly connected, a motor one 602 is fixed inside the motor fixing frame 601 , and a winding shaft 603 is fixed at the output end of the motor one 602 .

In the present invention, the moving mechanism 2 also includes a second motor 22 that is fixedly connected to the inner wall of the first groove 21. One end of the output shaft of the second motor 22 is fixedly connected to the screw 23, and the second motor 22 drives the screw 23 to rotate to switch the processing table 4. .

In the present invention, the bending mechanism 5 also includes a connecting block 52 that is fixedly connected to the bottom end of the hydraulic cylinder mechanism 51. The bottom of the connecting block 52 is provided with a plurality of second grooves, and the inside of the second grooves is sleeved with an adjusting block. There are a plurality of bayonet openings 54 through the surface of the groove 2, a through opening is opened on the front side of the groove 2, a clamping block 55 is sleeved inside the through opening and the bayonet opening 54, and a bending block 53 is fixed at the bottom of the adjusting block. Block 55, align the adjustment block bayonet 54 with the through opening as required, and use the catch block 55 to fix it to prevent the bending piece from being upturned and contacting the top connecting block 52 when bending occurs.

In the present invention, the automatic winding mechanism 6 further includes a box body 604 fixedly connected with the winding shaft 603, a spring 605 is fixed on the inner wall of the box body 604, a pressing plate 607 is fixed at the bottom end of the spring 605, and the inner wall of the spring 605 is sleeved A limit rod 606, the top of the limit rod 606 is fixedly connected with the box body 64, the limit rod 606 is sleeved inside the pressing plate 607, and two fixing plates 608 are fixed on the front side and the rear side of the processing frame 3, A roller 609 is rotatably connected between the two fixed plates 608 on one side, a support plate 610 is fixed on the front side of the processing frame 3, and a material shaft 611 is rotatably connected to the right side of the support plate 610, and the rewinding shaft 603 is driven to rotate by a motor one 602 Pull, unwind and rewind the non-indentation film on the material shaft to realize automatic film change without manual film change.

Example 2

Referring to Figures 2-5: this embodiment provides a technical solution on the basis of Embodiment 1: a push rod motor one 7 is fixed on the top of the base 1, and a push rod motor connecting block 8 is fixed on the top of the push rod motor one 7 , a push rod motor two 9 is fixed on the front side of the push rod motor connecting block 8, and a size limit plate 10 is fixed on the front side of the push rod motor two 9. The size limit board 10 moves according to the bending size of the bending part, and folds in half Bending machine limit.

In the present invention, a control panel is fixed on one side of the base 1, and the control panel is electrically connected with the motor one 602, the motor two 22, the push rod motor one 7, the push rod motor two 9 and the hydraulic cylinder mechanism 51, and the control panel controls the above The fabric starts to close.

In the present invention, the bottom of the pressing plate 607 is provided with anti-skid lines.

Working principle, first install a cylindrical non-indentation film on the outside of the material shaft 611, then pull the film over the two rollers, lift the pressing plate 607, and clamp one end of the non-indentation mold, which is convenient for Rewinding, at this time, the non-indentation die is located on the top of the multiple processing tables 4, and then the adjustment block is adjusted according to the upturned size of the bending part. Move down with the bending block 53, so that the bayonet above the adjusting block is opposite to the opening, and insert the latching block 55 into the interior to limit the adjusting block, so that the height of the adjusting block increases, and the bending part will not bend when it is upturned. When the connecting block 52 on the top is touched, after the adjustment is made, the bending part is manually placed on the processing table 4 to be bent. When bending, the hydraulic cylinder 51 pushes the connecting block 52, the adjusting block and the bending block 53 to move down. Cooperate with the processing table 4 below to bend the workpiece. When the processing table 4 needs to be switched, the moving mechanism is activated. The second motor 22 drives the screw 23 to rotate, so as to move the moving block and the processing frame 3. The movement of the processing frame 3 will cause the next folding The processing table 4 in the bending step is moved to the front of the manual, and the bending process is performed. The push rod motor one 7 controls the longitudinal movement of the size limit plate 10, and the push rod motor two 9 controls the size limit plate 10 to move laterally, and the size limit board 10 Move and adjust its own position, which is convenient to limit the bending parts. After the non-indentation film is pressed, the automatic winding mechanism 6 is activated. The used part is pulled to the top of the processing table 4 for processing without manual replacement, saving bending time.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (7)

1. A CNC bending machine for sheet metal with high machining accuracy, comprising a base (1), characterized in that a moving mechanism (2) is installed on the top of the base (1), and the moving mechanism (2) comprises The first groove (21) opened on the top of the base (1), the inner wall of the first groove (21) is rotatably connected with a screw (23), and the outside of the screw (23) is rotatably connected with a moving block, and the moving block A processing frame (3) is fixed on the top of the processing frame (3), a plurality of processing tables (4) are fixed on the bottom inner wall of the processing frame (3), and a bending mechanism (5) is installed on the top of the processing frame (3). The bending mechanism (5) includes a hydraulic cylinder mechanism (51) fixedly connected to the top of the processing frame (3), an automatic winding mechanism (6) is installed on the left side of the processing frame (3), and the automatic winding mechanism (6) Including a motor fixing frame (601) fixedly connected to the left side of the processing frame (3), a motor one (602) is fixed inside the motor fixing frame (601), and the output end of the motor one (602) A take-up reel (603) is fixed. 2 . The CNC bending machine for sheet metal with high machining accuracy according to claim 1 , wherein the moving mechanism ( 2 ) further comprises a second motor ( 2 ) fixedly connected to the inner wall of the first groove ( 21 ). 3 . 22), one end of the output shaft of the second motor (22) is fixedly connected with the screw (23). 3 . The CNC bending machine for sheet metal with high machining accuracy according to claim 1 , wherein the bending mechanism ( 5 ) further comprises a connection fixedly connected to the bottom end of the hydraulic cylinder mechanism ( 51 ). 4 . A block (52), the bottom of the connecting block (52) is provided with a plurality of grooves (54), the inner of the grooves is sleeved with an adjustment block, and the surface of the adjustment block is provided with a plurality of bayonet (54) ), a through opening is opened on the front side of the second groove, a clamping block (55) is sleeved inside the through opening and the bayonet (54), and a bending block (53) is fixed at the bottom of the adjusting block . 4. The CNC bending machine for sheet metal with high machining accuracy according to claim 1, wherein the automatic winding mechanism (6) further comprises a box body (603) fixedly connected to the winding shaft (603). 604), a spring (605) is fixed on the inner wall of the box body (604), a pressing plate (607) is fixed at the bottom end of the spring (605), and a limit rod is sleeved inside the spring (605) (606), the top of the limit rod (606) is fixedly connected with the box body (64), the limit rod (606) is sleeved inside the pressing plate (607), the processing frame (3) Two fixing plates (608) are fixed on the front side and the rear side of the processing frame (608), a roller (609) is rotatably connected between the two fixing plates (608) on one side, and the front side of the processing frame (3) A support plate (610) is fixed, and a material shaft (611) is rotatably connected to the right side of the support plate (610). 5. The CNC bending machine for sheet metal with high machining accuracy according to claim 1, characterized in that a push rod motor one (7) is fixed on the top of the base (1), and the push rod motor A push rod motor connecting block (8) is fixed at the top of one (7), and a second push rod motor (9) is fixed on the front side of the push rod motor connecting block (8). A size limit plate (10) is fixed on the front side. 6. The CNC bending machine for sheet metal with high machining accuracy according to claim 1, characterized in that a control panel is fixed on one side of the base (1), and the control panel is connected to the first motor (602). ), the second motor (22), the first push rod motor (7), the second push rod motor (9) and the hydraulic cylinder mechanism (51) are electrically connected. 7 . The CNC bending machine for sheet metal with high processing precision according to claim 1 , wherein the bottom of the pressing plate ( 607 ) is provided with anti-skid lines. 8 .

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