CN114713706B - A multi-station profile hydraulic punching production line and method - Google Patents

Abstract

The invention belongs to the technical field of section bar punching, and particularly relates to a multi-station section bar hydraulic punching production line and method, wherein the multi-station section bar hydraulic punching production line comprises a flexible feeding device, a punching device and a secondary clamping and positioning device which are sequentially arranged according to the feeding direction of a workpiece; the flexible feeding device is used for conveying workpieces to the punching device, the punching device comprises at least two portal frames which are sequentially arranged, the portal frames at the starting end are fixed, the rest of the portal frames are movable, three punching units corresponding to the surfaces of the workpieces are arranged in each portal frame, at least one fixed primary clamping and positioning device is arranged on the flexible feeding device, and the primary clamping and positioning device and the secondary clamping and positioning device are connected to clamp the workpieces; the invention can improve the punching efficiency and realize tailless processing.

Description

A multi-station profile hydraulic punching production line and method

technical field

The invention belongs to the technical field of profile punching, and in particular relates to a multi-station profile hydraulic punching production line and method.

Background technique

Photovoltaic frame is a supporting component of photovoltaic power generation, and its usage is increasing. The existing photovoltaic frame mainly uses C-shaped steel. Before it is assembled into a supporting component, it is necessary to punch out mounting holes in the C-shaped steel. The station punching machine is used for manufacturing.

The existing multi-station punching machine can only process one surface of the C-shaped steel workpiece at the same time. Although multiple holes can be processed by one clamping, but to complete the three-dimensional surface processing of the profile space, three times of flipping, positioning, clamping and punching are required. , will obviously greatly reduce the processing efficiency and the position accuracy between the holes; in addition, the punching holes are arranged side by side, which occupies a large space. It performs clamping processing, resulting in a lot of tailings, resulting in waste of materials and increasing processing costs.

Contents of the invention

The purpose of the present invention is to provide a multi-station profile hydraulic punching production line and method to solve the problems of low single-side processing efficiency and inability to process tailings of multi-station punching machines in the prior art. In order to achieve the above object, the present invention solves by the following technical solutions:

In the first aspect, the present invention provides a multi-station profile hydraulic punching production line, which includes a flexible feeding device, a punching device, and a secondary clamping and positioning device arranged in sequence according to the feeding direction of the workpiece;

Wherein, the flexible feeding device is used to transport workpieces to the punching device, and the punching device includes at least two gantry frames arranged in sequence, and the gantry frames at the starting end are fixed, and the rest are movable. Each of the gantry frames is provided with three punching units corresponding to the surface of the workpiece, and the flexible feeding device is provided with at least one fixed primary clamping and positioning device, and the primary clamping and positioning device is connected with the secondary clamping device. The tight positioning device continues to clamp the workpiece.

As a further technical solution, each of the gantry frames is equipped with a three-dimensional composite mold, and the three-dimensional composite mold is provided with a space for the workpiece to pass through, and a fixed mold core is arranged in the space, and the three punching units are respectively from The top and both sides of the space are pierced for stamping.

As a further technical solution, the flexible feeding device is provided with a plurality of height-adjustable idler roller devices in the workpiece feeding direction.

As a further technical solution, the flexible feeding device is provided with a sports car board device and guide rails, the sports car board device is provided with a pneumatic clamping device for clamping workpieces, and the sports car board device moves along the guide rails.

As a further technical solution, the sports car board device moves by cooperating with the rack and pinion of the guide rail.

As a further technical solution, each of the gantry frames is provided with a lower pressing device for pressing the upper surface of the workpiece, which is synchronized with the punching action of the punching unit.

As a further technical solution, the secondary clamping positioning device is movable.

As a further technical solution, the primary clamping positioning device includes two symmetrically arranged pneumatic pressing units for pressing two sides of the workpiece.

As a further technical solution, the secondary clamping and positioning device includes three pneumatic pressing units for pressing the top surface and two side surfaces of the workpiece.

In a second aspect, the present invention provides a punching method according to the multi-station profile punching production line described in the first aspect, comprising the following steps:

The flexible feeding device transports the workpiece to the punching device to process the workpiece, the movable gantry drives the punching unit and the punching unit on the fixed gantry to punch holes at different positions, and relies on one clamping positioning during the initial processing of the workpiece The device is clamped, and the middle section of the workpiece is clamped by the primary clamping positioning device and the secondary clamping positioning device, and the tailing section of the workpiece is clamped by the secondary clamping positioning device.

The above-mentioned beneficial effects of the present invention are as follows:

(1) The present invention sets a fixed gantry to provide a position for punching to provide a reference, and the rest of the movable gantry moves to a suitable distance to punch holes in conjunction with the fixed gantry, and each gantry is provided with three punching units that can punch holes Three different surfaces realize multi-station punching processing at the same time, which improves the punching efficiency.

(2) The present invention can rely on the primary clamping and positioning device for clamping when the initial section of the workpiece is processed, and rely on the primary clamping and positioning device and the secondary clamping and positioning device for clamping in the middle section of the workpiece. The secondary clamping and positioning device clamps, and the secondary clamping and positioning device compensates to complete the machining of the hole position of the tail section of the workpiece, realizing the processing of the entire workpiece without tail material.

(3) The secondary clamping and positioning device of the present invention is movable, and can flexibly process the tail section of the workpiece.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention. It should also be understood that the drawings are presented for simplicity and clarity and have not necessarily been drawn to scale. The invention will now be described and explained with additional features and details by use of the accompanying drawings, in which:

Fig. 1 shows the schematic diagram of the overall structure of the production line in the embodiment of the present invention;

Fig. 2 shows the schematic diagram of flexible feeding device in the embodiment of the present invention;

Fig. 3 shows the schematic diagram of the sports car board device in the embodiment of the present invention;

Fig. 4 shows the schematic diagram of punching device in the embodiment of the present invention;

Fig. 5 shows the schematic diagram of the portal frame in the embodiment of the present invention;

Figure 6 shows a schematic diagram of a three-dimensional composite mold in an embodiment of the present invention;

Fig. 7 shows a schematic diagram of the secondary clamping positioning device in the embodiment of the present invention.

In the figure: 1. Flexible feeding device; 2. Punching device; 3. Hydraulic station; 4. Workpiece; 5. CNC control center; 1.1. Rack; 1.2. Primary clamping and positioning device; 1.4, guide rail; 1.5, rack; 1.6, idler device; 1.7, block; 1.8, limit photoelectric switch; 1.3.1, sports car board, 1.3.2, servo motor; 1.3.3, deceleration device; 1.3. 4. Gear; 1.3.5, slider; 1.3.6, slider backing plate, 1.3.7, pneumatic clamping device; 1.3.8, upper lip of the jaw; 1.3.9, lower lip of the jaw; 1.3.10, Oil row; 2.1, fixed gantry; 2.2, mobile gantry; 2.3, three-dimensional composite mold; 2.4, guide chute; 2.5, secondary clamping positioning device; 2.6, rack; 2.7, guide rail; 2.8, photoelectric switch bracket ;2.2.1, bottom plate; 2.2.2, vertical plate; 2.2.3, lower pressing device; 2.2.4, top plate; 2.2.5, side plate; 2.2.6, limit plate; 2.3.1, bottom plate; 2.3.2, T-shaped slot; 2.3.3, punch; 2.3.4, first guide plate; 2.3.5, second guide plate; 2.3.6, insert; 2.3.7, base; 2.5.1, Cylinder; 2.5.2, bridge; 2.5.3, servo motor; 2.5.4, deceleration device.

Detailed ways

The following will clearly and completely describe the technical solutions in the typical embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

Example 1

As shown in Figure 1, this embodiment provides a multi-station profile hydraulic punching production line, including a flexible feeding device 1, a punching device 2 and a secondary clamping and positioning device 2.5 arranged in sequence according to the feeding direction of the workpiece 4 ;

Among them, the flexible feeding device 1 is used to transport the workpiece 4 to the punching device 2. The punching device 2 includes at least two gantry frames arranged in sequence, and the gantry frame at the starting end is fixed, and the rest are movable. There are three punching units corresponding to the surface of the workpiece 4. The flexible feeding device 1 is provided with at least one fixed primary clamping and positioning device 1.2. The primary clamping and positioning device 1.2 and the secondary clamping and positioning device 2.5 are connected to clamp the workpiece 4.

A fixed gantry is set to provide a position for punching to provide a benchmark, and the rest of the movable gantry moves to a suitable distance to punch holes in conjunction with the fixed gantry, and each gantry is equipped with three punching units that can process three different surfaces of the workpiece 4 Simultaneous punching is realized, which improves the punching efficiency; in addition, the secondary clamping and positioning device 2.5 compensates to complete the hole position processing of the workpiece 4 tailing section, and realizes no tailing processing.

In this embodiment, as shown in FIG. 2, there is one fixed gantry, that is, the fixed gantry 2.1, and one movable gantry, that is, the mobile gantry 2.2. Photovoltaic C-shaped steel generally has six stations to meet the punching needs. In some other embodiments, the number of moving gantry frames can be increased to increase the number of punching stations. Adding one gantry correspondingly increases three punching stations. bit.

As shown in Figure 2 and Figure 3, the flexible feeding device 1 is provided with a sports car board device 1.3 and a guide rail 1.4, the sports car board device 1.3 is provided with a pneumatic clamping device 1.3.7 for clamping workpieces, and the sports car board device 1.3 moves along the guide rail 1.4 .

Specifically, the flexible feeding device 1 has a frame 1.1, which is a frame welded by high-quality rectangular tubes. The height-adjustable idler device 1.6, the primary clamping positioning device 1.2 ensures that the workpiece 4 is on the same plane as the mold, and the primary clamping positioning device 1.2 is composed of two symmetrically arranged pneumatic pressing units, which are used to compress the workpiece 4. side. The idler device 1.6 can be adjusted according to the center of workpiece height, which can reduce the transmission resistance during transportation.

The sports car plate device 1.3 moves by cooperating with the guide rail 1.4 rack and pinion. Specifically, the guide rail 1.4 and the slider 1.3.5 are used for guidance, the slider backing plate 1.3.6 is set between the slider 1.3.5 and the sports car board 1.3.1, the rack 1.5 meshes with the gear 1.3.4 and the reduction device 1.3. 3 Combined transmission, driven by servo motor 1.3.2, rack 1.5 is installed on one side of guide rail 1.4, pneumatic clamping device 1.3.7 and oil drain 1.3.10 are installed on the sports car board 1.3.1, the oil pump is connected with the controller, through the delivery pipe Connect the slide block 1.3.5 oil nipple regularly lubricate the slide block 1.3.5 and guide rail 1.4, pneumatic clamping device 1.3.7 jaw lower lip 1.3.9 install induction switch, cylinder drive, jaw upper lip 1.3.8 and jaw lower lip 1.3.9 Clamp the workpiece 4, install the limit photoelectric switch 1.8 and the stopper 1.7 hard limit at the rear of the frame 1.1, and sense the limit position of the slider pad 1.3.6 at the bottom of the sports car board 1.3.1, and realize it according to the processing procedure of the workpiece 4 Equidistant and unequal distance automatic fixed-length feeding.

As shown in Figure 4, the guide chute 2.4 is installed on the lower part of the mobile gantry 2.2, which is a movable structure, and the mobile gantry 2.2 moves to a designated position according to the distance between the workpieces 4 holes. Punching units are distributed on the upper, left, and right sides of each gantry. The upper side of the fixed gantry 2.1 is a large-thrust hydraulic cylinder, and the rest are small-thrust hydraulic cylinders. A three-dimensional composite mold 2.3 is installed at the end of each hydraulic cylinder to complete. At least two types of passes are processed on the top and both sides of the profile of the workpiece 4. The rear side of the punching device is provided with a secondary clamping and positioning device 2.5, which is used for punching the tailings of the workpiece 4.

As shown in Figure 5, each gantry is composed of bottom plate 2.2.1, vertical plate 2.2.2, side plate 2.2.5, and top plate 2.2.4. Hydraulic cylinders are installed on side plate 2.2.5 and top plate 2.2.4, and the gantry The lower pressing device 2.2.3 is installed on the side to press the upper surface of the workpiece, which is synchronized with the punching action of the punching unit. The pneumatic lower pressing action makes the punching unit press once.

As shown in Figure 4, Figure 5 and Figure 6, the piston rod of the hydraulic cylinder installed on the gantry is installed with a connecting sleeve, and the outer ring of the connecting sleeve is installed and connected with a photoelectric switch bracket 2.8 to adjust the front limit and rear limit of the hydraulic cylinder stroke , Install the T-slot 2.3.2 of the connecting punch at the end of the connecting sleeve.

As shown in Figure 6, each gantry is equipped with a three-dimensional composite mold 2.3, and the three-dimensional composite mold 2.3 is provided with a space for the workpiece 4 to pass through. The space is provided with a fixed mold core. Penetrate for stamping.

Specifically, the three-dimensional composite mold 2.3 is installed on the gantry bottom plate 2.2.1, and the left and right are positioned by the limit plate 2.2.6 welded on the gantry frame. The three-dimensional composite mold 2.3 is provided with a bottom plate 2.3.1 and a groove The base 2.3.7 is used to install the mold core, and the base 2.3.7 is tightly connected with the bottom plate 2.3.1 through cylindrical pins.

The space is composed of the first guide plate 2.3.4, the second guide plate 2.3.5 and the upper top plate. The first guide plate 2.3.4 and the second guide plate 2.3.5 are fixed on the bottom plate 2.3.1. The punches 2.3.3 for punching the workpiece 4 are installed on both sides and the top, and the punches 2.3.3 are parts for punching of the punching unit. The base 2.3.7 is inlaid with inserts 2.3.6 in three directions, the punch 2.3.3 passes through the first guide plate 2.3.4 and the second guide plate 2.3.5, and the insert 2.3.6 punches the workpiece 4, Only the punch 2.3.3 and the insert 2.3.6 are needed to change the specification of the workpiece 4.

The secondary clamping and positioning device 2.5 is movable, and can flexibly process the tail section of the workpiece. Specifically, as shown in Figure 7, the secondary clamping and positioning device 2.5 is guided by a guide rail 2.7, and the rack 2.6 gear meshes and the reduction device 2.5 .4 Combined transmission, driven by servo motor 2.5.3, rack 2.6 installed on one side of guide rail 2.7, driven by cylinder 2.5.1, workpiece 4 passes through bridge 2.5.2, automatically clamped, and workpiece 4 tail material punching is completed according to the program .

In this embodiment, the secondary clamping and positioning device 2.5 includes three pneumatic pressing units for pressing the top surface and two side surfaces of the workpiece 4 .

Example 2

This embodiment provides a method according to the multi-station profile hydraulic punching production line in Embodiment 1, including the following steps:

The flexible feeding device 1 transports the workpiece 4 to the punching device 2 to process the workpiece 4. The movable gantry drives the punching unit and the punching unit on the fixed gantry to punch holes at different positions. When the workpiece 4 is processed at the initial stage Rely on the primary clamping and positioning device 1.2 to clamp, rely on the primary clamping and positioning device 1.2 and the secondary clamping and positioning device 2.5 to clamp in the middle section of the workpiece 4, and clamp the secondary clamping and positioning device 2.5 on the tailing section of the workpiece 4 .

The production line also includes a hydraulic station 3 and a CNC control center 5. The hydraulic station 3 mainly provides driving force for the punching device 2 to punch holes. The CNC control center 5 controls and drives the feeding of the flexible feeding device 1, the punching of the punching device and The clamping and positioning of the primary clamping positioning device 1.2 and the secondary clamping positioning device 2.5.

Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can use the methods and technical contents disclosed above to analyze the present invention without departing from the spirit and scope of the present invention. Possible changes and modifications are made in the technical solution. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention, which do not depart from the content of the technical solution of the present invention, all belong to the technical solution of the present invention. protected range.

Claims (7)

1. A multi-station profile hydraulic punching production line, characterized in that it includes a flexible feeding device, a punching device and a secondary clamping and positioning device arranged in sequence according to the feeding direction of the workpiece; Wherein, the flexible feeding device is used to transport workpieces to the punching device, and the punching device includes at least two gantry frames arranged in sequence, and the gantry frames at the starting end are fixed, and the rest are movable. The rest of the movable gantry moves to a suitable distance to punch holes in conjunction with the fixed gantry, and each of the gantry is provided with three punching units corresponding to the surface of the workpiece, and the flexible feeding device is provided with at least one fixed primary Clamping and positioning device, the primary clamping and positioning device and the secondary clamping and positioning device are connected to clamp the workpiece. The stamping action is synchronous, and the secondary clamping and positioning device is movable; each of the gantry frames is equipped with a three-dimensional composite mold, and the three-dimensional composite mold is provided with a space for the workpiece to pass through, and a fixed mold core is provided in the space. The two punching units respectively penetrate from the top and two sides of the space for punching. 2. A multi-station profile hydraulic punching production line according to claim 1, characterized in that the flexible feeding device is provided with a plurality of height-adjustable idler roller devices in the workpiece feeding direction. 3. A multi-station profile hydraulic punching production line as claimed in claim 1, wherein the flexible feeding device is provided with a running board device and guide rails, and the running board device is provided with a pneumatic clamping device for clamping workpieces. clamping device, the sports car board device moves along the guide rail. 4. A multi-station profile hydraulic punching production line according to claim 3, characterized in that, the sports car board device moves by cooperating with the rack and pinion of the guide rail. 5. A multi-station profile hydraulic punching production line according to claim 1, characterized in that, the primary clamping and positioning device includes two symmetrically arranged pneumatic pressing units for pressing the two side. 6. A multi-station profile hydraulic punching production line as claimed in claim 1, wherein said secondary clamping and positioning device comprises three pneumatic pressing units for pressing the top surface of the workpiece and two side. 7. The method according to any one of claims 1-6, comprising the following steps: The flexible feeding device transports the workpiece to the punching device to process the workpiece, the movable gantry drives the punching unit and the punching unit on the fixed gantry to punch holes at different positions, and relies on one clamping positioning during the initial processing of the workpiece The device is clamped, and the middle section of the workpiece is clamped by the primary clamping positioning device and the secondary clamping positioning device, and the tailing section of the workpiece is clamped by the secondary clamping positioning device.

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