CN116116967A

CN116116967A - Machining device

Info

Publication number: CN116116967A
Application number: CN202310067063.8A
Authority: CN
Inventors: 朱文轩
Original assignee: Jiangsu College of Safety Technology
Current assignee: Jiangsu College of Safety Technology
Priority date: 2023-01-29
Filing date: 2023-01-29
Publication date: 2023-05-16

Abstract

The invention discloses a machining device, and belongs to the field of machining. The device comprises: a frame; the driving device is fixedly arranged on the frame; the forming device comprises a top plate, an inclined guide block and a pressing plate, and the driving device is used for driving the top plate to move along a first direction or a second direction; when the top plate moves along the first direction, the driving device drives the inclined guide block to move along the third direction; when the top plate moves towards the second direction, the driving device drives the pressing plate to move towards the fourth direction, the inclined guide block moves towards the opposite direction, and the fourth direction is perpendicular to the first direction; the fixed die is fixedly arranged on the frame and is provided with at least a first molding surface, a second molding surface and a third molding surface, the first molding surface and the third molding surface are arranged in parallel, and the second molding surface is perpendicular to the first molding surface. The invention can avoid the problems of error deformation direction and abnormal deformation of bending parts caused by stress when the long side of the workpiece is vertical to the pressing plate.

Description

Machining device

Technical Field

The invention relates to the field of machining, in particular to a machining device.

Background

As shown in fig. 1, which shows a component structure commonly used in precision instruments. The structure is formed by folding a plate, and has a C-shaped cross section, and comprises a three-side structure formed by two side edges and a transverse edge, wherein the measuring side edges are connected through the transverse edge, one of the two side edges is longer, the other side is shorter, and the length of the two side edges is far greater than that of the transverse edge. Because the ductility of the material is poor, when the traditional stamping process is used, two side edges can extend in the stamping process, and because the length of the two side edges is far longer than that of the transverse edge, the ductility requirement on the material is high, and in the stamping process, breakage often occurs, so that the stamping process is not suitable.

When the bending machine is used for folding edges, as the two side edges are crossed, the side edges interfere with the machine body and the cutting die after being bent, so that parts deform and even the bending machine is damaged.

Therefore, a special machine is required to be designed for processing the parts with the structure.

Disclosure of Invention

The invention provides a machining device which can solve the problem that parts with the structure are difficult to machine.

A machining apparatus comprising:

a frame;

the driving device is fixedly arranged on the frame;

the forming device comprises a top plate, an inclined guide block and a pressing plate, wherein the driving device is used for driving the top plate to move along a first direction or a second direction, and the directions of the first direction and the second direction are opposite; when the top plate moves along the first direction, the driving device drives the oblique guide block to move along a third direction, and the third direction and the first direction form an acute angle; when the top plate moves towards the second direction, the driving device drives the pressing plate to move towards the fourth direction, the inclined guide blocks move towards opposite directions, and the fourth direction is perpendicular to the first direction;

the fixed die is fixedly arranged on the frame and is provided with at least a first forming surface, a second forming surface and a third forming surface, the first forming surface and the third forming surface are arranged in parallel, and the second forming surface is perpendicular to the first forming surface.

More preferably, the driving device comprises a driving cylinder, a driving block and a positioning block;

the driving cylinder is fixedly arranged on the frame and is used for driving the driving block to move;

the positioning block is fixedly arranged on the frame, an inclined guide groove is formed in the positioning block, the inclined guide groove extends along a third direction, and the inclined guide block is slidably arranged in the inclined guide groove;

the driving block is provided with a guide groove, and the extending direction of the guide groove is perpendicular to the third direction; the oblique guide block is provided with a guide slide bar which is slidably arranged in the guide groove; the top plate is arranged on the driving block.

More preferably, the driving device further comprises a link, the pressing plate is slidably provided on the frame, one end of the link is hinged to the inclined guide block, and the other end of the link is slidably hinged to the pressing plate.

More preferably, the device further comprises a connecting sliding block, wherein a connecting sliding groove is formed in the pressing plate, and the connecting sliding block is slidably arranged in the connecting sliding groove.

More preferably, the device also comprises a positioning cylinder, a return spring and a guide rod; the positioning cylinder is fixedly arranged on the frame, a guide sliding hole is formed in the positioning cylinder, one end of the guide rod is fixedly arranged on the pressing plate, and the other end of the guide rod is slidably arranged in the guide sliding hole; one end of the return spring is connected to the pressing plate, and the other end of the return spring is connected to the positioning cylinder.

The invention provides a machining device, which is characterized in that a support is formed through a fixed die to position the transverse edge of a workpiece; when the top plate moves towards the first direction, the inclined guide block moves towards the third direction, the top plate pushes one side of the workpiece, and meanwhile, the inclined guide block pushes one side of the workpiece, and the two sides are simultaneously stressed to deform, so that resistance is formed between the inclined guide block and the fixed die, and the workpiece is prevented from being displaced during molding, so that the dimensional accuracy is deteriorated; when the top plate moves towards the second direction, the pressing plate moves towards the longer side of the workpiece and forms the long side of the workpiece, and because the long side of the workpiece is pushed by the oblique guide block to deform in the process, an included angle is formed between the long side of the workpiece and the pressing plate, so that the long side of the workpiece deforms along the forming direction when the pressing plate presses, and the problems of error deformation direction and abnormal deformation of a bending part caused by stress when the long side of the workpiece is perpendicular to the pressing plate are avoided.

Drawings

FIG. 1 is a schematic view of a structure of a part to be processed in the prior art;

FIG. 2 is a schematic structural view of a machining device according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic cross-sectional view of FIG. 2;

FIG. 5 is an enlarged view of a portion of FIG. 4 at B;

FIG. 6 is a schematic cross-sectional view of the positioning block in FIG. 4;

FIG. 7 is a schematic view of a working state of a machining device according to the present invention;

FIG. 8 is a second schematic diagram of a working state of a machining device according to the present invention;

FIG. 9 is a third schematic diagram of the working state of a machining device according to the present invention;

fig. 10 is a schematic diagram of the working principle.

Reference numerals illustrate:

10, driving a cylinder; 11 driving blocks; 111 guide grooves; a 12 roof panel; 20 positioning blocks; 201 inclined guide grooves; 202 a yielding groove; 21 oblique guide blocks; 211 guide slide bar; 22 connecting rods; 30, fixing the mold; a 40 pressing plate; 41 positioning barrels; 411 guide slide hole; 401 guide bar; 42 return spring.

Detailed Description

One embodiment of the present invention will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

As shown in fig. 1, fig. 1 shows the structure of a part to be machined. The whole body is plate-shaped, and the cross section of the plate-shaped air conditioner is of a C-shaped structure. The device comprises a transverse edge, a short edge and a long edge, wherein the short edge and the long edge are connected through the transverse edge.

As shown in fig. 1 to 6, the machining device according to the embodiment of the present invention includes a frame, a driving device, a molding device, and a stationary mold 30.

The frame is used for playing a role of integral support;

the driving device is fixedly arranged on the frame, and in the embodiment, the driving device is a conventional driving device in the prior art, such as a driving cylinder 10, a driving motor, a hydraulic driving rod and other power devices capable of realizing linear driving;

the molding device includes a top plate 12, a diagonal guide 21, and a pressing plate 40, and takes the view of fig. 8 as an example, the first direction refers to the direction in which the top plate 12 moves downward, the second direction refers to the direction in which the top plate 12 moves upward, the third direction refers to the direction in which the diagonal guide 21 protrudes rightward and downward, and the fourth direction refers to the direction in which the pressing plate 40 moves leftward.

The driving device is used for driving the top plate 12 to move along a first direction or a second direction, and the directions of the first direction and the second direction are opposite, namely, in the view angle of fig. 8, the top plate 12 moves up and down; as shown in fig. 8, when the top plate 12 moves in the first direction (the top plate 12 moves downward in fig. 7 to 9), the driving device drives the oblique guide 21 to move in the third direction (i.e., the oblique guide 21 moves toward the lower right corner in fig. 7 to 9), and the third direction forms an acute angle with the first direction; when the top plate 12 moves in the second direction (the top plate 12 moves upward in fig. 7 to 9), the driving device drives the pressing plate 40 to move in a fourth direction (the pressing plate 40 moves leftward in fig. 7 to 9), the oblique guide block 21 moves in the opposite direction (the oblique guide block 21 moves in the direction of the upper left corner in fig. 7 to 9), and the fourth direction is perpendicular to the first direction;

the fixed die 30, fixed die 30 is fixed to be set up in the frame, and fixed die 30 has first die surface, second die surface and third die surface at least, and first die surface and third die surface parallel arrangement, second die surface are perpendicular with first die surface.

When the short side is bent and formed, the workpiece is stressed, and if the right side is not clamped, the workpiece is displaced, so that the dimensional accuracy is deteriorated. In practice, therefore, the workpiece is generally clamped. However, if the long side or the transverse side of the workpiece is clamped, the problem of workpiece displacement can be solved, but feeding is difficult or additional devices or equipment are required, and the sequence and control requirements on the working procedures are high, so that the equipment is extremely complex. In the present embodiment, when the top plate 12 moves downward to apply force to the short side, the inclined guide block 21 applies force to the long side at the same time, the long side is deformed under force, and resistance is generated between the fixed mold 30 and the long side, so that displacement cannot be generated, and the short side is deformed under force to form resistance to the long side, so that the short side cannot be displaced due to resistance when the long side is formed, and the dimensional accuracy of forming can be effectively improved.

In addition, as shown in fig. 7, during feeding, the blank is plate-shaped after feeding, and the blank and the pressing plate 40 are vertically arranged, if the pressing plate 40 directly presses the long side, the state shown in fig. 10 can be caused, and even when the blank has certain original deformation, the long side of the pressing can be bent, so that the workpiece is scrapped. In the present embodiment, the long side of the workpiece is deformed by force before the pressing plate 40 presses, as shown in fig. 8, and is inclined toward the lower right, and the pressing plate 40 presses again, so that the workpiece is easy to form, and the problem of abnormal deformation of the workpiece is avoided.

Specifically, as shown in fig. 2 to 4, the driving device includes a driving cylinder 10, a driving block 11, and a positioning block 20;

the driving cylinder 10 is fixedly arranged on the frame, and the driving cylinder 10 is used for driving the driving block 11 to move;

the positioning block 20 is fixedly arranged on the frame, an inclined guide groove 201 is formed in the positioning block 20, the inclined guide groove 201 extends along a third direction, and the inclined guide block 21 is slidably arranged in the inclined guide groove 201;

the driving block 11 is in a C-shaped structure and comprises two side plates and a transverse plate, the two side plates are connected through the transverse plate, guide grooves 111 are formed in the two side plates, and the extending direction of the guide grooves 111 is perpendicular to the third direction; the inclined guide block 21 is provided with a guide slide bar 211, the guide slide bar 211 is slidably disposed in the guide groove 111, and the top plate 12 is disposed on the driving block 11, specifically, the top plate 12 is located at a side of the driving block 11 away from the driving cylinder 10.

When the driving cylinder 10 is operated, the driving block 11 is driven to move, when the driving block 11 is moved, the guide sliding rod 211 slides in the guide groove 111 to force the inclined guide block 21 to move, and the inclined guide block 21 is limited by the inclined guide groove 201, so when the driving cylinder 10 is operated, the top plate 12 is driven to move, and meanwhile, the inclined guide block 21 is driven to synchronously operate.

Further, the driving device further includes a connecting rod 22, the pressing plate 40 is slidably disposed on the frame, specifically, the driving device further includes a connecting slide block, a connecting chute is formed on the pressing plate 40, the connecting slide block is slidably disposed in the connecting chute, and this part is a common structure in the prior art and will not be described again. The link 22 has one end hinged to the inclined guide block 21 and the other end slidably hinged to the pressing plate 40.

When the top plate 12 moves up or down, the pressing plate 40 is driven to act through the inclined guide block 21, when the top plate 12 moves down, the short sides of the workpiece are forced to be molded, meanwhile, the long sides of the workpiece are extruded and deformed through the inclined guide block 21, and when the top plate 12 moves up, the inclined guide block 21 pulls the pressing plate 40 through the connecting rod 22, and the pressing plate 40 moves towards the direction of the fixed die 30 to extrude and mold the long sides of the workpiece.

It should be noted that, as shown in fig. 4 and fig. 6, since the pull rod is easy to interfere with the positioning block 20 during the action, the positioning block 20 may be provided with a yielding groove 202 for forming a yielding space for the pull rod.

Further, as shown in fig. 4 and 5, the device further comprises a positioning cylinder 41, a return spring 42 and a guide rod 401; the positioning cylinder 41 is fixedly arranged on the frame, a guide sliding hole 411 is formed in the positioning cylinder 41, one end of the guide rod 401 is fixedly arranged on the pressing plate 40, and the other end of the guide rod 401 is slidably arranged in the guide sliding hole 411; the return spring 42 has one end connected to the pressing plate 40 and the other end connected to the positioning cylinder 41. The return spring 42 can drive the platen 40 to return after the platen 40 is displaced.

The foregoing disclosure is merely illustrative of some embodiments of the invention, but the embodiments are not limited thereto and variations within the scope of the invention will be apparent to those skilled in the art.

Claims

1. A machining apparatus, comprising:

a frame;

the driving device is fixedly arranged on the frame;

the forming device comprises a top plate (12), an inclined guide block (21) and a pressing plate (40), wherein the driving device is used for driving the top plate (12) to move along a first direction or a second direction, and the directions of the first direction and the second direction are opposite; when the top plate (12) moves along the first direction, the driving device drives the inclined guide block (21) to move along a third direction, and the third direction forms an acute angle with the first direction; when the top plate (12) moves towards the second direction, the driving device drives the pressing plate (40) to move towards the fourth direction, the inclined guide block (21) moves towards the opposite direction, and the fourth direction is perpendicular to the first direction;

the fixed die (30), fixed die (30) is fixed to be set up in the frame, fixed die (30) have at least first die face, second die face and third die face, first die face with the third die face parallel arrangement, the second die face with first die face looks is perpendicular.

2. A machining device according to claim 1, wherein the driving means comprises a driving cylinder (10), a driving block (11) and a positioning block (20);

the driving cylinder (10) is fixedly arranged on the frame, and the driving cylinder (10) is used for driving the driving block (11) to move;

the positioning block (20) is fixedly arranged on the rack, an inclined guide groove (201) is formed in the positioning block (20), the inclined guide groove (201) extends along a third direction, and the inclined guide block (21) is slidably arranged in the inclined guide groove (201);

the driving block (11) is provided with a guide groove (111), and the extending direction of the guide groove (111) is perpendicular to the third direction; the oblique guide block (21) is provided with a guide slide bar (211), and the guide slide bar (211) is slidably arranged in the guide groove (111); the top plate (12) is arranged on the driving block (11).

3. A machining device according to claim 1, wherein the drive means further comprises a link (22), the platen (40) being slidably arranged on the frame, one end of the link (22) being hinged to the ramp block (21) and the other end being slidably hinged to the platen (40).

4. A machining device according to claim 3, further comprising a connecting slide, wherein the platen (40) is provided with a connecting chute, and wherein the connecting slide is slidably arranged in the connecting chute.

5. A machining device as claimed in claim 4, further comprising a positioning cylinder (41), a return spring (42) and a guide bar (401); the positioning cylinder (41) is fixedly arranged on the frame, a guide sliding hole (411) is formed in the positioning cylinder (41), one end of the guide rod (401) is fixedly arranged on the pressing plate (40), and the other end of the guide rod is slidably arranged in the guide sliding hole (411); one end of the return spring (42) is connected to the pressing plate (40), and the other end is connected to the positioning cylinder (41).