WO2022121009A1

WO2022121009A1 - Numerical-control bending machine for production of general-purpose electrical devices

Info

Publication number: WO2022121009A1
Application number: PCT/CN2020/140071
Authority: WO
Inventors: 徐棉荣
Original assignee: 吴江市徐氏机电有限公司
Priority date: 2020-12-07
Filing date: 2020-12-28
Publication date: 2022-06-16
Also published as: CN112517684A

Abstract

Disclosed is a numerical-control bending machine for the production of general-purpose electrical devices, comprising a machine frame and a hydraulic cylinder; said hydraulic cylinder is located on one side of the machine frame; the output end of the hydraulic cylinder is connected to a pressure head; the lower end of said pressure head is provided with an upper mold; the outer surface of the upper end of said upper mold is fixedly provided with a first connection plate; the upper end of said first connection plate is fixedly provided with a dovetail slide strip, and the lower end of the pressure head is provided with a dovetail slideway matching the dovetail slide strip; the surface of the first connection plate is symmetrically hinged with a first arcuate ring; the lower end of the upper mold is provided with a work platform, the upper end of the work platform is provided with a lower mold, and the surface of the lower mold is provided with a bending groove; thus the replacement of the upper mold is facilitated, operation is simple, and the replacement rate is faster.

Description

A CNC bending machine for general electrical equipment production

technical field

The invention relates to the technical field of bending machines, in particular to a numerical control bending machine for general electrical equipment production.

Background technique

The CNC bending machine is to use the equipped mold (general or special mold) to bend the metal sheet in the cold state into workpieces with various geometric cross-sectional shapes. It is a sheet metal forming machine designed for cold-rolled sheet metal processing, and is widely used in sheet metal bending processing in automobiles, aircraft manufacturing, light industry, shipbuilding, containers, elevators, railway vehicles, electrical equipment and other industries.

technical problem

The CNC bending machine forms the plate into the designed bending angle. According to the thickness of the plate and the bending angle, different molds need to be replaced for work, but generally the upper mold of the bending machine is fixedly connected to the pressure head through multiple bolts. When the upper die is working, the bolts are easily bent by the downward shearing force, which makes it difficult to replace the upper die. For this reason, we propose a CNC bending machine for the production of general electrical equipment.

technical solutions

In order to overcome the deficiencies of the prior art, the present invention provides a numerical control bending machine for the production of general electrical equipment, which can bring the beneficial effect of facilitating the replacement of the upper die.

In order to solve the above technical problems, the present invention provides the following technical solutions: a CNC bending machine for general electrical equipment production, comprising a frame and a hydraulic cylinder, the hydraulic cylinder is located on one side of the frame, and the output end of the hydraulic cylinder is A pressure head is connected, the lower end of the pressure head is provided with an upper mold, the outer surface of the upper end of the upper mold is fixed with a first connecting plate, the upper end of the first connecting plate is fixed with a dovetail slide, and the lower end of the pressure head is A dovetail slideway matched with a dovetail slide is provided, a first arc ring is symmetrically hinged on the surface of the first connecting plate, a working table is arranged on the lower end of the upper die, and a lower die is arranged on the upper end of the working platform, And the surface of the lower mold is provided with a bending groove.

As a preferred technical solution of the present invention, a placement plate is fixed on the upper side of the worktable, a limit plate is fixed at one end of the placement plate close to the frame, and a placement slot is formed on the upper end of the limit plate. The lower end of the lower mold is located inside the placement groove, a fixing frame is fixed on the upper end of the side of the working table away from the frame, and a second connecting plate is fixed inside the fixing frame through fixing bolts, and the upper end of the second connecting plate is An adjusting screw runs through the inside, and one end of the adjusting screw close to the lower mold is connected with a pressure plate, and the pressure plate is attached to the side wall of the lower mold, and the other end of the adjusting screw is fixed with a turning handle.

As a preferred technical solution of the present invention, side plates are fixed on both ends of the upper side of the first connecting plate, cavities are symmetrically opened on both sides of the lower end of the pressure head, and limit blocks are arranged inside the cavities , a spring is fixed between one side of the limit block and the side wall of the cavity, a limit groove matching the limit block is opened inside the side plate, and the outer end of the limit block extends to the end of the limit groove It snaps into it internally.

As a preferred technical solution of the present invention, both ends of the placing plate are symmetrically hinged with second arc-shaped rings, and the second arc-shaped rings are clamped with the lower mold.

As a preferred technical solution of the present invention, a second buffer pad is fixed on the side of the pressing plate close to the lower mold and inside the placement groove.

As a preferred technical solution of the present invention, the limiting plate and the placing plate have an integrated structure, and the side plate and the first connecting plate have an integrated structure.

As a preferred technical solution of the present invention, a bar-shaped groove is opened inside the upper side of the dovetail slideway, and balls are placed inside the bar-shaped groove.

As a preferred technical solution of the present invention, the pressure head and the output end of the hydraulic cylinder are fixedly connected by bolts.

As a preferred technical solution of the present invention, the inner wall of the strip groove is coated with lubricant.

beneficial effect

Compared with the prior art, the beneficial effects that the present invention can achieve are:

1. Insert one end of the dovetail slide into the inside of the dovetail slide, and the dovetail slide slides inside the dovetail slide. When the two ends of the dovetail slide and the two ends of the dovetail slide are at the same level, stop the upper mold. At this time, the symmetrical first arc-shaped ring is rotated to the middle, so that the first arc-shaped ring and the two ends of the dovetail slide are clamped, and the operation is completed, which is convenient for the replacement of the upper mold, and the operation is simple and the replacement rate is fast. , Through the setting of the first arc ring, it is convenient to limit the position of the dovetail slide, prevent the dovetail slide from sliding inside the dovetail slide, and improve the stability of the upper die during use;

2. The lower mold is placed inside the placement groove, and the limit plate is used to limit one side of the lower mold. When replacing the lower mold, turn the handle counterclockwise, the handle drives the adjusting screw to rotate, and the adjusting screw drives the pressing plate to move. , so that the pressing plate is separated from the side of the lower mold, which is convenient for the replacement of the lower mold, and has strong stability.

Description of drawings

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

Fig. 2 is the connection structure schematic diagram of the pressure head of the present invention and the upper die;

Fig. 3 is the enlarged schematic diagram of a place in Fig. 2;

Fig. 4 is the side view of lower mould of the present invention;

In the picture: 1. Frame; 2. Hydraulic cylinder; 3. Pressure head; 4. Upper mold; 401, Lower mold; 5. Worktable; 6. Side plate; 601, First connecting plate; ;8, dovetail slideway; 9, first arc ring; 10, cavity; 11, limit block; 12, limit slot; 13, spring; 14, placing plate; 15, limit plate; 16, placing Slot; 17, fixing frame; 18, second connecting plate; 19, adjusting screw; 20, pressing plate; 21, fixing bolt; 22, second arc ring.

Embodiments of the present invention

In order to make the technical means, creation features, achievement goals and effects of the present invention easy to understand and understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the examples in the implementation manner, other examples obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following examples can be obtained from commercial sources unless otherwise specified.

实施例：Example:

As shown in Figures 1 and 2, a CNC bending machine for general electrical equipment production includes a frame 1 and a hydraulic cylinder 2, the hydraulic cylinder 2 is located on one side of the frame 1, and the output end of the hydraulic cylinder 2 is connected to a pressure Head 3, the lower end of the pressure head 3 is provided with an upper die 4, the outer surface of the upper end of the upper die 4 is fixed with a first connecting plate 601, the upper end of the first connecting plate 601 is fixed with a dovetail slider 7, and the lower end of the pressure head 3 is provided with There is a dovetail slide 8 matched with the dovetail slide 7, a first arc ring 9 is symmetrically hinged on the surface of the first connecting plate 601, the lower end of the upper die 4 is provided with a workbench 5, and the upper end of the workbench 5 is provided with a lower end. The mold 401, and the surface of the lower mold 401 is provided with a bending groove;

First, the upper end of each upper die 4 is fixed with the same first connecting plate 601, dovetail slide 7 and symmetrically hinged first arc ring 9. First, place the upper die 4 with the dovetail slide 7 on the pressure head 3 One end of the dovetail slide 7 is inserted into the inside of the dovetail slide 8, and the upper die 4 is pushed inward, so that the dovetail slide 7 slides inside the dovetail slide 8. When the two ends of the dovetail slide 7 and the dovetail slide Stop the movement of the upper die 4 when the two ends of the track 8 are in the same horizontal plane. At this time, the first arc ring 9 is rotated to the middle, so that the first arc ring 9 is locked with both ends of the dovetail slide 7. After connecting, the operation is completed, which is convenient for the replacement of the upper mold 4, and the operation is simple and the replacement rate is relatively fast. The inside of the channel 8 slides to improve the stability of the upper mold 4 during use.

In another embodiment, as shown in FIG. 1 and FIG. 4 , this embodiment discloses that a placing plate 14 is fixed on the upper side of the worktable 5 , and a limiting plate 15 is fixed at one end of the placing plate 14 close to the frame 1 to limit the The upper end of the position plate 15 is provided with a placement slot 16, the lower end of the lower mold 401 is located inside the placement slot 16, the upper end of the side of the worktable 5 away from the frame 1 is fixed with a fixing frame 17, and the interior of the fixing frame 17 is fixed by fixing bolts 21. There is a second connecting plate 18, an adjusting screw 19 runs through the upper end of the second connecting plate 18, and one end bearing of the adjusting screw 19 close to the lower mold 401 is connected with a pressing plate 20, and the pressing plate 20 is attached to the side wall of the lower mold 401, and the adjusting screw The other end of 19 is fixed with a turning handle;

The lower mold 401 is placed inside the placement groove 16, one side of the lower mold 401 is limited by the limit plate 15, and the number of the second connecting plates 18 is not less than six. The cooperation can fix the lower mold 401 and increase the stability of the lower mold 401. When the lower mold 401 needs to be replaced, firstly turn the handle counterclockwise, the handle drives the adjusting screw 19 to rotate, and the adjusting screw 19 drives the pressure plate 20 to move. , so that the pressing plate 20 is separated from the side of the lower mold 401, and the lower mold 401 is replaced. After the replacement is completed, the turning handle is rotated clockwise to drive the pressing plate 20 to fix the lower mold 401, which is convenient for the replacement of the lower mold 401. strong.

In another embodiment, as shown in FIG. 2 and FIG. 3 , this embodiment discloses that side plates 6 are fixed on both ends of the upper side of the first connecting plate 601 , and cavities are symmetrically opened on both sides of the lower end of the pressure head 3 . 10. There is a limit block 11 inside the cavity 10, a spring 13 is fixed between one side of the limit block 11 and the side wall of the cavity 10, and a limit slot 12 matching the limit block 11 is opened inside the side plate 6 , and the outer end of the limit block 11 extends to the interior of the limit slot 12 and is clamped therewith;

When the upper mold 4 is replaced, the dovetail slider 7 slides to drive the first connecting plate 601 and the side plate 6 to slide on the outer surface of the pressure head 3, and when the limit block 11 contacts the inner wall of the side plate 6, it is driven by the action of the spring 13. The limit block 11 is retracted into the cavity 10. When the limit block 11 contacts the limit groove 12 opened in the side plate 6, the limit block 11 is extended into the limit groove 12 by the action of the spring 13 and is clamped therewith. At this time, the dovetail slides 8 and the dovetail slides 7 at both ends are located on the same horizontal plane, which speeds up the installation rate of the upper die 4 .

In another embodiment, as shown in FIG. 4 , this embodiment discloses that the two ends of the placing plate 14 are symmetrically hinged with a second arc-shaped ring 22 , and the second arc-shaped ring 22 is clamped with the lower mold 401 ; The second arc-shaped ring 22 is convenient to limit the two ends of the lower mold 401, and further increases the stability of the lower mold 401.

In another embodiment, as shown in FIG. 4 , this embodiment discloses that the side of the pressing plate 20 close to the lower mold 401 and the inside of the placement groove 16 are both fixed with a second buffer pad; The side surface of 401 directly collides with the side surface of the pressing plate 20 and the placement groove 16 , which reduces the degree of wear on the surface of the lower mold 401 and increases the service life of the lower mold 401 .

In another embodiment, as shown in FIG. 2 and FIG. 4 , this embodiment discloses that the limiting plate 15 and the placing plate 14 have an integrated structure, and the side plate 6 and the first connecting plate 601 have an integrated structure; The position plate 15 and the placing plate 14 and the side plate 6 and the first connecting plate 601 are integrally constructed, which increases the connection structure of the two and increases their service life.

In another embodiment, as shown in FIG. 2 , this embodiment discloses that a bar-shaped groove is opened inside the upper side of the dovetail slideway 8 , and balls are placed inside the bar-shaped groove; The friction generated when the slider 7 slides inside the dovetail slide 8 .

In another embodiment, as shown in FIG. 1 , this embodiment discloses that the pressure head 3 and the output end of the hydraulic cylinder 2 are fixedly connected by bolts; the pressure head 3 is connected to the output end of the hydraulic cylinder 2 by bolts, which is convenient for Removal of pressure head 3.

In another embodiment, as shown in FIG. 2 , this embodiment discloses that the inner wall of the strip groove is coated with lubricant; by coating the inner wall of the strip groove with lubricant, the distance between the ball and the strip groove is increased. The lubricating performance further reduces the friction generated between the dovetail slide 7 and the dovetail slide 8 .

In the present invention, unless otherwise expressly specified and limited, the first feature is between the second feature "Up" or "under" may include the first and second features in direct contact, or may include the first and second features not in direct contact but through another feature therebetween. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature is directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims

A CNC bending machine for general electrical equipment production, comprising a frame (1) and a hydraulic cylinder (2), wherein the hydraulic cylinder (2) is located on one side of the frame (1), and is characterized in that: the hydraulic cylinder The output end of (2) is connected with a pressure head (3), the lower end of the pressure head (3) is provided with an upper die (4), and a first connecting plate (601) is fixed on the outer surface of the upper end of the upper die (4). ), the upper end of the first connecting plate (601) is fixed with a dovetail slide (7), and the lower end of the pressure head (3) is provided with a dovetail slide (8) that matches the dovetail slide (7). A first arc ring (9) is symmetrically hinged on the surface of the first connecting plate (601), the lower end of the upper mold (4) is provided with a worktable (5), and the upper end of the worktable (5) is provided with a lower mold (401), and a bending groove is opened on the surface of the lower mold (401).
The CNC bending machine for general electrical equipment production according to claim 1, characterized in that: a placing plate (14) is fixed on the upper side of the worktable (5), and the placing plate (14) is close to the machine One end of the frame (1) is fixed with a limit plate (15), the upper end of the limit plate (15) is provided with a placement groove (16), and the lower end of the lower mold (401) is located inside the placement groove (16), A fixing frame (17) is fixed on the upper end of the side of the workbench (5) away from the frame (1), and a second connecting plate (18) is fixed inside the fixing frame (17) by fixing bolts (21). An adjusting screw (19) runs through the upper end of the second connecting plate (18), and a pressure plate (20) is connected with a bearing at one end of the adjusting screw (19) close to the lower die (401), and the pressure plate (20) is connected to the lower die (401). The side walls of the mold (401) are fitted together, and a turning handle is fixed at the other end of the adjusting screw (19).
A CNC bending machine for general electrical equipment production according to claim 2, characterized in that: side plates (6) are fixed on both ends of the upper side of the first connecting plate (601), and the pressure head ( 3) A cavity (10) is symmetrically opened on both sides of the lower end, a limit block (11) is arranged inside the cavity (10), and one side of the limit block (11) is connected to the side wall of the cavity (10). A spring (13) is fixed therebetween, a limit groove (12) matching the limit block (11) is opened inside the side plate (6), and the outer end of the limit block (11) extends to the limit The inside of the slot (12) is snapped with it.
The CNC bending machine for general electrical equipment production according to claim 2, characterized in that: the two ends of the placing plate (14) are symmetrically hinged with second arc rings (22), and the second arc The ring (22) is clamped with the lower mold (401).
A CNC bending machine for general electrical equipment production according to claim 2, characterized in that: a side of the pressing plate (20) close to the lower mold (401) and the inside of the placement groove (16) are fixed with a second Cushion.
A CNC bending machine for general electrical equipment production according to claim 3, characterized in that: the limiting plate (15) and the placing plate (14) are of an integral structure, and the side plate (6) and the first The connecting plate (601) is an integral structure.
A CNC bending machine for general electrical equipment production according to claim 1, characterized in that: a bar-shaped groove is opened inside the upper side of the dovetail slide (8), and balls are placed inside the bar-shaped groove .
A CNC bending machine for general electrical equipment production according to claim 1, characterized in that: the pressure head (3) and the output end of the hydraulic cylinder (2) are fixedly connected by bolts.
The CNC bending machine for general electrical equipment production according to claim 7, wherein the inner wall of the strip groove is coated with lubricant.