CN104985029A - Novel online precise bending forming device - Google Patents

Abstract

The invention discloses a novel on-line precision bending forming device, which includes a cutting upper knife and a bending lower knife. A positioning plate is arranged on the outside of the blade, a springback knife is arranged between the binder plates, a knife groove is arranged in the middle of the springback knife, the upper knife for cutting passes through the knife groove, and an upper knife hole is arranged in the middle of the lower knife for bending. The beneficial effects are as follows: a spring-back knife is added between the left and right press plates, and the lower end of the spring-back knife is processed with a bevel. After the bending and lowering knife completes the bending and returns, the spring-back knife presses down for a certain distance, and the metal workpiece The bending angle is pressed to less than 90° to eliminate the springback of the material. The reduction amount of the springback knife can be adjusted according to the springback of the material, and the bending angle can be precisely controlled so that the angle after bending and springback meets the requirements of the drawing, and the production efficiency is increased by 30% compared with the original production method.

Description

A new type of online precision bending forming device

technical field

The invention relates to the technical field of metal product bending, in particular to a novel online precision bending forming device.

Background technique

A bending machine is a machine that can bend thin plates. When processing parts, some parts need to be bent into a certain angle. Bending parts is usually done by a bending machine. During the use of the bending machine, the thin plate to be bent is placed on the workbench, and the bending upper die is downward, and the thin plate is bent together with the bending lower die. Due to the springback phenomenon of all steel materials, the traditional bending forming device cannot eliminate the springback of the bending angle, so that the products produced cannot meet the requirements of the drawings, and secondary processing is required to meet our requirements. This process costs a lot of money human and material resources, the efficiency is extremely low.

Contents of the invention

The problem to be solved by the present invention is to provide a new online precision bending forming device that can precisely control the bending angle.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a new type of online precision bending forming device, including a cutting upper knife and a bending lower knife, and the cutting upper knife is placed on the top of the bending lower knife , the top of the cutting upper knife is provided with a fixed top plate, the left and right sides of the cutting upper knife are provided with pressure plates in parallel, the outer side of the pressure plate is provided with a positioning plate, and a pressure return plate is provided between the pressure plates. The spring knife is provided with a knife groove in the middle of the pressure rebound knife, the cutting upper knife passes through the knife groove, the bottom of the pressure rebound knife is provided with a cavity, and the outer side of the bending lower knife is symmetrically provided with For the first fixing seat and the second fixing seat, an upper knife hole is arranged in the middle of the bending lower knife.

Preferably, the above-mentioned novel online precision bending forming device, wherein the lower end of the springback knife is processed with a bevel, and the angle between the bevel and the vertical direction is 5-30°.

Preferably, the above-mentioned novel online precision bending and forming device, wherein the bottom of the inner side of the pressure plate is provided with an inner chamfer, and the angle between the inner chamfer and the vertical direction is 5-30°.

Preferably, in the above-mentioned novel online precision bending forming device, the thickness of the cutting upper knife is 2-6mm.

Preferably, the above-mentioned novel online precision bending forming device, wherein the size of the upper knife hole is 3-7mm.

Preferably, in the above-mentioned novel online precision bending and forming device, the fixed top plate and the pressing plate are fixed together by bolts.

Preferably, in the above-mentioned novel online precision bending and forming device, there is a gap between the pressure rebound knife and the pressing plate, and butter is arranged in the gap.

Preferably, in the above-mentioned novel online precision bending and forming device, butter is arranged in the knife groove.

Preferably, the above-mentioned novel online precision bending and forming device, wherein the distance between the pressing plate and the first fixing seat is 10-30 mm.

The advantages and beneficial effects of the present invention are: it can overcome the problem of the original technology that the size of the parts after bending cannot meet the requirements of the drawing, and a pressure rebound knife controlled by an oil cylinder is added between the left and right pressure plates to cut off the upper part. The knife passes through the groove of the springback knife, and the lower end of the springback knife is processed with a pressing material slope. When the bending is completed, the springback knife is pressed down for a certain distance to press the bending angle of the metal workpiece. to less than 90° to eliminate springback of the material. The pressing amount of the springback knife can be adjusted according to the springback of the material, and the bending angle can be precisely controlled so that the angle after bending and springback meets the requirements of the drawing, and the products that meet the requirements can be produced at one time, and the production efficiency is higher than that of the original production method 30% boost.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is the structural representation when cutting off upper knife and pressing down among the present invention;

Fig. 3 is a schematic diagram of the structure of the present invention when the lower knife is bent and the upper is lifted;

Fig. 4 is a schematic structural view of the present invention when the medium-pressure rebound knife is pressed down;

Fig. 5 is a schematic diagram of the structure of the medium pressure rebound knife of the present invention when it returns to its original position.

In the figure: 1. Fixed top plate 2. Positioning plate 3. Pressure rebound knife

4. Pressing plate 5. Work piece 6. The first fixed seat

7. Bending lower knife 8. Second fixing seat 9. Upper knife hole

10. Cutting off the upper knife 11. Cavity

Detailed ways

Below in conjunction with the accompanying drawings, the specific embodiments of the present invention will be further described, so as to make the technical solution of the present invention easier to understand and grasp.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, and Figure 5, a new type of online precision bending forming device includes a cutting upper knife 10 and a bending lower knife 7, and the cutting upper knife 10 is placed under the bending On the top of the knife 7, an upper knife hole 9 is arranged in the middle of the bent lower knife 7. The size of the upper knife hole 9 is 3-7mm, and the thickness of the upper knife 10 is 2-6mm when cut. 1. The left and right sides of the upper cutting knife 10 are cut with a clamping plate 4 parallel to each other. The fixed top plate 1 and the clamping plate 4 are fixed together by bolts. The angle in the vertical direction is 5-30 °, the outside of the binder plate 4 is provided with a positioning plate 2, and the pressure rebound knife 3 is arranged between the binder plates 4 on the left and right sides, and the lower end of the pressure rebound knife 3 is processed with a slope, the slope The angle with the vertical direction is 5-30°, there is a gap between the pressure rebound knife 3 and the pressure plate 4, butter is arranged in the gap, and a knife groove is arranged in the middle of the pressure rebound knife 3, and the knife groove Set with butter. Cut the upper knife 10 through the knife groove, and the bottom of the springback knife 3 is provided with a cavity, and the outer side of the bent lower knife 7 is symmetrically provided with a first fixed seat 6 and a second fixed seat 8, and the pressure plate 4 is fixed to the first fixed seat. The distance between the seats is 10-30mm. In the working process, after the bending and lowering knife 7 completes the bending and returns, the springback knife 3 is pressed down for a certain distance, and the bending angle of the metal workpiece is pressed to less than 90°, so as to eliminate the springback of the material. The pressing amount of the springback knife 3 can be adjusted according to the springback of the material, and the bending angle can be precisely controlled so that the angle after bending and springback meets the requirements of the drawing, and a product that meets the requirements can be produced at one time.

An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

Claims (9)

1. a novel online accurate bending and molding device, include and cut off cutter under upper slitter and bending, described cut-out upper slitter is placed in the top of cutter under described bending, it is characterized in that: the top of described cut-out upper slitter is provided with fixing top board, described cut-out upper slitter the right and left is arranged with holding pad in parallel, the arranged outside of described holding pad has location-plate, be provided with between described holding pad and push back bullet cutter, described pushing back in the middle of bullet cutter is provided with cutter groove, described cut-out upper slitter is through described cutter groove, described pushing back bottom bullet cutter is provided with cavity, under described bending, the outside of cutter is symmetrically arranged with the first holder and the second holder, tool bore is provided with in the middle of cutter under described bending.

2. the novel online accurate bending and molding device of one according to claim 1, is characterized in that: described in push back and play the lower end of cutter and be processed with inclined-plane, the angle between described inclined-plane and vertical direction is 5-30 °.

3. the novel online accurate bending and molding device of one according to claim 1, it is characterized in that: the bottom of described holding pad medial surface is provided with interior chamfering, the angle between described interior chamfering and vertical direction is 5-30 °.

4. the novel online accurate bending and molding device of one according to claim 1, is characterized in that: the thickness of described cut-out upper slitter is 2-6mm.

5. the novel online accurate bending and molding device of one according to claim 1, is characterized in that: the size of described upper tool bore is 3-7mm.

6. the novel online accurate bending and molding device of one according to claim 1, is characterized in that: together with described fixing top board is bolted on described holding pad.

7. the novel online accurate bending and molding device of one according to claim 1, is characterized in that: described in push back to play between cutter and described holding pad and leave gap, be provided with butter inside described gap.

8. the novel online accurate bending and molding device of one according to claim 1, is characterized in that: be provided with butter in described cutter groove.

9. the novel online accurate bending and molding device of one according to claim 1, is characterized in that: the distance between described holding pad and described first holder is 10-30mm.