CN107159955B

CN107159955B - Accurate shearing blanking device

Info

Publication number: CN107159955B
Application number: CN201710566861.XA
Authority: CN
Inventors: 刘宗阳; 周硕; 苏建良
Original assignee: Shanghai Aokewei Intelligent Equipment Co ltd
Current assignee: Shanghai Aokewei Intelligent Equipment Co ltd
Priority date: 2017-07-12
Filing date: 2017-07-12
Publication date: 2023-07-28
Anticipated expiration: 2037-07-12
Also published as: CN107159955A

Abstract

The invention discloses an accurate shearing blanking device which comprises a base, a stepping feeding mechanism, a locking mechanism and a shearing mechanism, wherein the stepping feeding mechanism is fixedly arranged on the base at the rear end of a material channel, the locking mechanism comprises a clamp head seat, a clamping power, an upper clamp head and a lower clamp head, the clamp head seat is connected with a moving rod of the stepping feeding mechanism so as to push the clamp head seat to move along the extending direction of the material channel, the upper clamp head is fixedly arranged on the clamp head seat above the material channel between the stepping feeding mechanism and the shearing mechanism, the lower clamp head is arranged below the material channel corresponding to the upper clamp head, the clamping power is fixedly arranged on the clamp head seat, a driving rod is connected with the lower clamp head so as to push the lower clamp head to move along the vertical direction of the material channel, and the shearing mechanism is fixedly arranged on the base above the front end of the material channel so as to shear materials. The invention locks the materials by the locking mechanism, then accurately feeds and positions the materials by the stepping feeding mechanism, and finally finishes blanking, and has the characteristics of simple structure, accurate and reliable shearing and positioning, high production efficiency and flexible and convenient adjustment.

Description

Accurate shearing blanking device

Technical Field

The invention belongs to the technical field of stamping equipment, and particularly relates to an accurate shearing blanking device which is simple in structure, accurate and reliable in shearing and positioning, high in production efficiency, flexible and convenient to adjust and wide in application range.

Background

Blanking refers to the process of removing a certain shape, quantity or mass of material from the whole or whole batch of material after determining the shape, quantity or mass of material required to make a certain device or product. The stamping is a forming processing method for obtaining a workpiece (stamping part) with a required shape and size by applying external force to plates, strips, pipes, sectional materials and the like by using a press machine and a die to enable the plates, the strips, the pipes, the sectional materials and the like to generate plastic deformation or separation. The stamping has been increasingly used because of its advantages of saving materials and energy, high efficiency, low technical requirements for operators, and the inability to make products by machining through various die applications, as compared to conventional machining. At present, because of the unique advantages of stamping, the blanking of metal materials and part of rigid nonmetallic materials adopts a stamping and shearing blanking process, and the shearing blanking is one of the most basic working procedures in the stamping of plates and the like. The task of shearing blanking is to shear the plate material into sheets, strips or blanks of other shapes suitable for the stamping process according to the requirements of the stamping process. Reasonably selecting shearing equipment, correctly arranging the samples, improving the mechanization and automation degree of the shearing work, and has important significance for improving the quality of sheared pieces, improving the production efficiency, improving the labor condition, improving the material utilization rate and reducing the production cost. However, in the prior art, the shearing blanking is inaccurate in positioning and guiding, so that the overall dimension and shape are out of tolerance easily, and particularly when a stamping part is pressed down at a high speed through a stamping head, the stamping part is prevented from shaking or tilting, so that the stamping failure is caused, and the product quality is affected.

Disclosure of Invention

The invention aims to provide the accurate shearing blanking device which has the advantages of simple structure, accurate and reliable shearing positioning, high production efficiency, flexible and convenient adjustment and wide application range.

The purpose of the invention is realized in the following way: the automatic feeding device comprises a base, a stepping feeding mechanism, a locking mechanism and a cutting mechanism, wherein the stepping feeding mechanism is fixedly arranged on the base at the rear end of a material channel, the locking mechanism comprises a clamp head seat, a clamping power, an upper clamp head and a lower clamp head, the clamp head seat is connected with a moving rod of the stepping feeding mechanism, the stepping feeding mechanism pushes the clamp head seat to move along the extending direction of the material channel, the upper clamp head is fixedly arranged on the clamp head seat above the material channel between the stepping feeding mechanism and the cutting mechanism, the lower clamp head is arranged below the material channel corresponding to the upper clamp head, the clamping power is fixedly arranged on the clamp head seat, a driving rod is connected with the lower clamp head to push the lower clamp head to move along the vertical direction of the material channel, and the cutting mechanism is fixedly arranged on the base above the front end of the material channel and used for cutting materials.

The invention pushes the lower clamping head to move by the clamping power of the locking mechanism and the upper clamping head to lock the materials in the material channel, then pushes the locking mechanism to integrally move by the stepping feeding mechanism, thereby driving the locked materials to accurately feed and position according to the requirement, and finally completing the discharging by the cutting mechanism. According to the invention, the material is accurately fed and positioned by the servo mechanism after being locked, so that the problem that the positioning accuracy is affected by the mutual sliding of the material and the feeding wheel in the power transmission friction feeding is avoided, the problem that the positioning accuracy is low in the traditional feeding and positioning process by adopting a cylinder or an oil cylinder to match with a contact switch is also avoided, the complicated positioning of the traditional small workpiece and small material by the jack is also omitted, and the feeding and positioning accuracy and reliability are greatly improved; moreover, the stepping feeding accurate positioning of the large-scale materials can be adapted by increasing the clamping force of the locking mechanism and the friction force of the clamping head, so that the complicated mechanism for accurately feeding and positioning the large-scale materials in the prior art can be simplified, and the energy consumption is reduced. Therefore, the invention has the characteristics of simple structure, accurate and reliable shearing and positioning, high production efficiency, flexible and convenient adjustment and wide application range.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a left side view of FIG. 2;

FIG. 5 is a cross-sectional view of FIG. 2;

in the figure: the device comprises a base, a guide rail, a 2-step feeding mechanism, a 3-locking mechanism, a 31-clamp seat, 32-clamping power, 33-upper clamps, 34-lower clamps, a 4-material shearing mechanism, 41-material shearing power, 42-cutters, 43-cutter holders, 44-sliding blocks, 5-material channels, 51-upper guide plates, 52-lower guide plates, 53-clamping holes, 6-self-locking mechanisms, 61-self-locking power and 62-self-locking connecting blocks.

Detailed Description

The invention is further illustrated in the following figures and examples, which are not intended to be limiting in any way, and any alterations or modifications based on the teachings of the invention are within the scope of the invention.

As shown in fig. 1 to 5, the invention comprises a base 1, a step feeding mechanism 2, a locking mechanism 3 and a shearing mechanism 4, wherein the step feeding mechanism 2 is fixedly arranged on the base 1 at the rear end of a material channel 5, the locking mechanism 3 comprises a clamp head seat 31, a clamping power 32, an upper clamp head 33 and a lower clamp head 34, the clamp head seat 31 is connected with a moving rod of the step feeding mechanism 2, the step feeding mechanism 2 pushes the clamp head seat 31 to move along the extending direction of the material channel 5, the upper clamp head 33 is fixedly arranged on the clamp head seat 31 above the material channel 5 between the step feeding mechanism 2 and the shearing mechanism 4, the lower clamp head 34 is arranged below the material channel 5 corresponding to the upper clamp head 33, the clamping power 32 is fixedly arranged on the clamp head seat 31, a driving rod is connected with the lower clamp head 34 to push the lower clamp head 34 to move along the vertical direction of the material channel 5, and the shearing mechanism 4 is fixedly arranged on the base 1 above the front end of the material channel 5.

The step feeding mechanism 2 is fixedly arranged on the base 1 at the side of the rear end of the material channel 5, the chuck seat 31 is arranged at the side of the material channel 5 and fixedly connected or hinged with a moving rod of the step feeding mechanism 2, the bottom of the clamping power 32 is fixedly arranged on the chuck seat 31, one end of the upper chuck 33 is fixedly arranged on the chuck seat 31, the other end of the upper chuck extends to the upper side of the material channel 5, and one end of the lower chuck 34 is fixedly connected or hinged with a driving rod of the lower-end clamping power 32, and the other end of the lower chuck extends to the lower side of the material channel 5.

The material channel 5 comprises an upper guide plate 51 and a lower guide plate 52, the upper guide plate 51 and the lower guide plate 52 are respectively fixedly connected with the base 1, a material channel for guiding materials is formed between the upper guide plate 51 and the lower guide plate 52, clamping holes 53 are respectively formed in corresponding clamping positions of the upper clamping head 33 and the lower clamping head 34, the clamping end of the upper clamping head 33 extends from top to bottom into the clamping holes 53, and the clamping end of the lower clamping head 34 extends from bottom to top into the clamping holes 53.

The clamping hole 53 is a waist hole extending in the material feed direction.

The material feeding channel behind the material channel 5 is provided with a self-locking mechanism 6 for locking materials, the self-locking mechanism 6 comprises a self-locking power 61 and a self-locking connecting block 62, the self-locking power 6 is vertically arranged above the material feeding channel and fixedly connected with the base 1, and the upper end of the self-locking connecting block 62 is connected with the driving end of the lower end of the self-locking power 6 and the lower end of the self-locking connecting block is arranged above the material feeding channel in parallel.

The clamping power 32 and/or the self-locking power 61 are/is an air cylinder, an oil cylinder or a linear motor, and the stepping feeding mechanism 2 is/are a servo air cylinder, a servo oil cylinder or a servo linear motor.

The invention further comprises a control system, and the feeding power unit of the stepping feeding mechanism 2, the shearing power unit of the shearing mechanism 4 and the clamping power 32 are respectively and electrically connected with the control system.

The material shearing mechanism 4 comprises a material shearing power 41, a cutter 42 and a cutter seat 43, wherein the material shearing power 41 is vertically and fixedly arranged on the base 1 above the front end of the material channel 5, the cutter seat 43 is fixedly arranged on the base 1 above the front end of the material channel 5, and the cutter 43 is arranged above the cutter seat 43 and the upper end of the cutter is fixedly connected or hinged with the movable end of the material shearing power 41.

The base 1 is vertically provided with a guide rail 11 along the movement direction of the cutter 42, the material shearing mechanism 4 further comprises a sliding block 44 in sliding fit with the guide rail 11, the upper end of the sliding block 44 is fixedly connected or hinged with the moving end of the material shearing power 41, and the lower end of the sliding block is fixedly connected with the cutter 42.

The shearing power 41 is driven by a cylinder, an oil cylinder or a motor connecting rod.

The working principle and the working process of the invention are as follows:

the clamping power of the locking mechanism pushes the lower clamping head to move and the upper clamping head to lock the materials in the material channel, and then the stepping feeding mechanism pushes the locking mechanism to integrally move, so that the locked materials are driven to be accurately fed and positioned according to the requirements, and finally the blanking is completed through the cutting mechanism; by accurately feeding and positioning the materials through the servo mechanism after locking, the problem that positioning accuracy is low when feeding and positioning are performed by matching a cylinder or an oil cylinder with a contact switch is avoided, the complicated positioning of a traditional small workpiece and a small material by a jack is avoided, and the accuracy and reliability of feeding and positioning are greatly improved; moreover, the stepping feeding accurate positioning of the large-scale materials can be adapted by increasing the clamping force of the locking mechanism and the friction force of the clamping head, so that the complicated mechanism for accurately feeding and positioning the large-scale materials in the prior art can be simplified, and the energy consumption is reduced. Further, the stepping feeding mechanism is fixedly arranged on a base at the side of the rear end of the material channel, the chuck base is arranged at the side of the material channel and is fixedly connected or hinged with a moving rod of the stepping feeding mechanism, the bottom of the clamping power is fixedly arranged on the chuck base, the clamping power at the upper end of the clamping power is fixedly connected or hinged with the lower chuck, one end of the upper chuck is fixed on the chuck base, the other end of the upper chuck extends to the upper part of the material channel, and the other end of the lower chuck extends to the lower part of the material channel; through setting up step feeding mechanism and chuck seat in the side of material way, both can avoid its installation back and material way to interfere, also set up self-locking mechanism and set up the installation space for the later stage and have reserved moreover, also can not block the transport of material in the material way. Further, the material channel comprises an upper guide plate and a lower guide plate, the upper guide plate and the lower guide plate are respectively fixedly connected with the base, a material channel for guiding materials is arranged between the upper guide plate and the lower guide plate, clamping holes are respectively formed in corresponding clamping positions of the upper clamping head and the lower clamping head, the clamping end of the upper clamping head extends from top to bottom to the clamping holes, and the clamping end of the lower clamping head extends from bottom to top to the clamping holes; the upper guide plate and the lower guide plate form a material channel, so that the material channel can be flexibly replaced according to materials with different heights and widths to form a compact guide channel, and the blanking precision is improved; and the clamping ends of the upper clamping head and the lower clamping head extend into the clamping holes by arranging the clamping holes, so that the problem of space arrangement of clamping feeding is solved under the condition of not influencing feeding guiding precision. Further, a material feeding channel behind the material channel is provided with a self-locking mechanism for locking materials, the self-locking mechanism comprises self-locking power and a self-locking connecting block, the self-locking power is vertically arranged above the material feeding channel and fixedly connected with the base, the upper end of the self-locking connecting block is connected with a driving end at the lower end of the self-locking power, and the lower end of the self-locking connecting block is arranged above the material feeding channel in parallel; when the material shearing mechanism punches and shears the material, the self-locking mechanism can be used for pressing the precisely positioned material, so that the movement, shaking or inclination of the material during punching and shearing is avoided, and the shearing precision can be effectively improved. Further, the clamping power and/or the self-locking power are/is an air cylinder, an oil cylinder or a linear motor, and the stepping feeding mechanism is a servo air cylinder, a servo oil cylinder or a servo linear motor; the clamping power, the self-locking power and the stepping feeding mechanism can select a proper power system according to the clamping force, the telescopic precision, the control system requirement and the cost so as to meet the diversity requirement. Further, the automatic feeding device also comprises a control system which is respectively and electrically connected with the feeding power unit, the shearing power unit of the shearing mechanism and the clamping power, and the control system is used for respectively controlling the coordinated actions among the mechanisms, so that accurate shearing and blanking of materials can be completed. In conclusion, the invention has the characteristics of simple structure, low manufacturing and maintenance cost, high cover closing efficiency and accurate and reliable positioning.

As shown in fig. 1 to 5, the control system is started, firstly, the clamping cylinder 32 of the locking mechanism 3 is started to push the lower clamping head 34 to move upwards, so that the lower clamping head 34 and the upper clamping head 33 clamp materials in the material channel by friction force; then, the servo cylinder of the stepping feeding mechanism 2 is started to push the clamp head seat 31 to move along the moving direction of the material according to the requirement of the cutting length, and the material is enabled to move forward to a preset length under the clamping of the lower clamp head 34 and the upper clamp head 33 through the clamp head seat 31 and then is stopped; thereafter, the self-locking cylinder 61 in the self-locking mechanism 6 is started to push the self-locking connecting block 62 to press the positioned material downwards. Finally, a material shearing cylinder 41 in the material shearing mechanism 4 is started, a piston rod of the material shearing cylinder 41 pushes a sliding block 44 to slide downwards along the guide rail 11, and a cutter 42 is matched with a cutter seat 43 to cut off materials. Then, the piston rod of the shearing cylinder 41 is retracted to drive the cutter 42 to retract upwards, the piston rod of the self-locking cylinder 41 is retracted to enable the self-locking connecting block 62 to loosen materials, the piston rod of the clamping cylinder 32 is retracted to enable the lower chuck 34 to loosen materials, and the piston rod of the servo cylinder of the stepping feeding mechanism 2 is retracted, so that the accurate shearing blanking process of one cycle is completed.

Claims

1. The utility model provides an accurate shearing unloader, its characterized in that includes base (1), step feeding mechanism (2), locking mechanism (3), cuts material mechanism (4), step feeding mechanism (2) are fixed to be set up in base (1) of material way (5) rear end, locking mechanism (3) are including holder seat (31), clamp power (32), go up chuck (33), lower chuck (34), the movable rod hookup of holder seat (31) and step feeding mechanism (2), step feeding mechanism (2) promote holder seat (31) and move along material way (5) extending direction, go up chuck (33) fixed collet seat (31) that set up in material way (5) top between step feeding mechanism (2) and cut material mechanism (4), lower chuck (34) set up in material way (5) below that last chuck (33) correspond, clamp power (32) are fixed to be set up in holder seat (31) and actuating lever and lower chuck (34) hookup in order to promote lower chuck (34) and move along material way (5) extending direction, upper jaw (33) is used for setting up in material (1) in the fixed place of material way (4) in material way.

2. The precise shearing blanking device according to claim 1, characterized in that the stepping feeding mechanism (2) is fixedly arranged on a base (1) at the side of the rear end of the material channel (5), the chuck base (31) is arranged at the side of the material channel (5) and is fixedly connected or hinged with a moving rod of the stepping feeding mechanism (2), the bottom of the clamping power (32) is fixedly arranged on the chuck base (31), one end of the upper chuck (33) is fixed on the chuck base (31) and the other end extends to the upper part of the material channel (5), one end of the lower chuck (34) is fixedly connected or hinged with a driving rod of the lower end clamping power (32) and the other end extends to the lower part of the material channel (5).

3. The precise shearing blanking device according to claim 1 or 2, characterized in that the material channel (5) comprises an upper guide plate (51) and a lower guide plate (52), the upper guide plate (51) and the lower guide plate (52) are respectively fixedly connected with the base (1) and form a material channel for guiding materials, clamping holes (53) are respectively formed in corresponding clamping positions of the upper clamping head (33) and the lower clamping head (34), the clamping end of the upper clamping head (33) extends from top to bottom into the clamping holes (53), and the clamping end of the lower clamping head (34) extends from bottom to top into the clamping holes (53).

4. A precision shear blanking device according to claim 3, characterized in that the clamping holes (53) are waist holes extending in the feed direction of the material.

5. The precise shearing blanking device according to claim 1 or 2, characterized in that a material feeding channel behind the material channel (5) is provided with a self-locking mechanism (6) for locking materials, the self-locking mechanism (6) comprises self-locking power (61) and a self-locking connecting block (62), the self-locking power (6) is vertically arranged above the material feeding channel and fixedly connected with the base (1), and the upper end of the self-locking connecting block (62) is connected with a driving end at the lower end of the self-locking power (6) and the lower end of the self-locking connecting block is arranged above the material feeding channel in parallel.

6. The accurate shearing blanking device according to claim 5, characterized in that the clamping power (32) and/or the self-locking power (61) are/is a cylinder, an oil cylinder or a linear motor, and the step feeding mechanism (2) is/are a servo cylinder, a servo oil cylinder or a servo linear motor.

7. The precise shearing blanking device according to claim 1 or 2, further comprising a control system, wherein the feeding power unit of the stepping feeding mechanism (2), the shearing power unit of the shearing mechanism (4) and the clamping power (32) are respectively and electrically connected with the control system.

8. The precise shearing blanking device according to claim 1 or 2, characterized in that the shearing mechanism (4) comprises shearing power (41), a cutter (42) and a cutter holder (43), wherein the shearing power (41) is vertically fixed on a base (1) arranged above the front end of the material channel (5), the cutter holder (43) is fixedly arranged on the base (1) arranged at the front end of the material channel (5), and the cutter (43) is arranged above the cutter holder (43) and is fixedly connected or hinged with the movable end of the shearing power (41).

9. The precise shearing blanking device according to claim 8, characterized in that the base (1) is vertically provided with a guide rail (11) along the movement direction of the cutter (42), the shearing mechanism (4) further comprises a sliding block (44) in sliding fit with the guide rail (11), the upper end of the sliding block (44) is fixedly connected or hinged with the moving end of the shearing power (41), and the lower end of the sliding block is fixedly connected with the cutter (42).

10. The precision shear blanking device of claim 8, characterized in that the shear power (41) is a cylinder, cylinder or motor linkage drive.