CN213225241U

CN213225241U - Pressing device for processing parts

Info

Publication number: CN213225241U
Application number: CN202021891819.9U
Authority: CN
Inventors: 许刚强; 郑迅刚
Original assignee: Shanghai Ribiye Die Casting Co ltd
Current assignee: Shanghai Ribiye Die Casting Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-05-18
Anticipated expiration: 2030-09-02

Abstract

The utility model relates to the field of machining, especially, relate to closing device of lathe processing part. The pressing device comprises a product placing seat, an L-shaped pressing rod, a linker and a cylinder; the product placing seat and the air cylinder are fixed on the workbench, the L-shaped pressing rod is arranged on the workbench and slides between the product placing seat and the air cylinder in a reciprocating manner; the L-shaped pressing rod is movably fixed with the linker through a rod-shaped structure I and comprises a transverse rod-shaped structure and a longitudinal rod-shaped structure which are fixedly connected; the air cylinder comprises a piston, and when the air in the air cylinder is full, the piston is pushed to horizontally move towards the direction of the product placing seat; one flat surface of the linker is in contact with one flat surface of the piston of the cylinder. The utility model discloses be particularly useful for the special unable tight work piece of clamp of appearance, the utility model discloses the problem of getting fast of having solved such kind of work piece fast compresses tightly well to do not hinder work piece periphery processing.

Description

Pressing device for processing parts

Technical Field

The utility model relates to the field of machining, especially, relate to closing device of lathe processing part.

Background

In order to fix the product to be machined better, different clamping devices are required to be configured in the machine tool machining equipment. The clamping device generally serves three functions, opening and closing the mold, ejecting the molded part, and holding the mold closed against the pressure of the melt in the mold during injection with sufficient force.

The clamping devices are classified according to the source of the clamping force and can be divided into manual clamping, motorized clamping and automatic clamping. The simple clamping mechanism and the complex clamping mechanism can be classified according to the complex and simple conditions of the clamping mechanism. According to the number of workpieces which can be clamped by the clamping mechanism at one time when the workpieces are clamped, the clamping mechanism can be divided into single-piece clamping, double-piece clamping and multi-piece clamping. The clamping mechanism also has two types of self-locking and non-self-locking. There are two common types of clamping designs: 1) hydraulic clamping devices, which use hydraulic pressure to open and close the clamp and generate the clamping force required during material injection. The advantage of this type of design is high reliability and controllable and precise clamping force. The disadvantage is that the hydraulic system is relatively slow and expensive compared to toggle clamp devices. 2) Hinge or toggle clamp devices this design utilizes the mechanical properties of the hinge to provide the clamping force required during material injection. The mechanical toggle clamp closes and opens at a faster rate and at a lower cost than other clamping devices. The main disadvantage is that the clamping force cannot be controlled precisely, for which reason it is only suitable for small machines.

For many small-sized elements, the processing cost is too high by using a hydraulic clamping device, the processing accuracy is not high by using a mechanical clamping device, and particularly for workpieces which have special shapes, are tightly pressed and have inner holes or outer peripheries with processing contents and inner holes interfered by the clamping device, the conventional clamping device cannot completely clamp or has low stability, so that the processed finished products cannot be consistent with design drawings, and the qualification rate of the finished products is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a follow-on closing device, especially to the appearance special, compress tightly have hole or periphery have processing content, clamping device interfere have the work piece of hole, this closing device can be accurate press from both sides tightly treat the processing product.

Aiming at the defects and shortcomings of the prior art, the utility model provides a compressing device, which comprises a product placing seat, an L-shaped compressing rod, a linker and a cylinder; the product placing seat and the air cylinder are fixed on the workbench, the L-shaped pressing rod is arranged on the workbench and slides between the product placing seat and the air cylinder in a reciprocating manner; the L-shaped pressing rod is movably fixed with the linker through a rod-shaped structure I and comprises a transverse rod-shaped structure and a longitudinal rod-shaped structure which are fixedly connected; the air cylinder comprises a piston, and when the air in the air cylinder is full, the piston is pushed to horizontally move towards the direction of the product placing seat; one flat surface of the linker is in contact with one flat surface of the piston of the cylinder.

Preferably, the product placing seat is provided with a clamping groove for placing the products to be processed, and can adapt to most of the products to be processed. The small filling blocks matched with the product placing seat can be used, the contact surface between the product placing seat and the product to be processed is increased, and the product to be processed is placed on the product placing seat more stably.

Preferably, the product placing seat is fixedly connected with a stop dog, and the stop dog is positioned on one side of the product placing seat facing the cylinder. After the L-shaped pressing rod touches the stop block, the horizontal acting force is converted into a vertical downward pressing force through the linker, so that the product for processing is pressed on the product placing seat. The stop block can be in various shapes, and the size of the stop block can be preset according to the processing requirement.

Better, the horizontal shaft-like structure can be according to the needs angle regulation of parts machining with vertical shaft-like structure on the horizontal plane, like this can better compress tightly the product of treating processing (the part of treating processing), also can adapt to the work piece of various different shapes and different processing requirements, especially is fit for the product of treating processing that the middle part has the hole. Preferably, the length of the transverse rod-like structure is adjustable to accommodate more machined parts.

In order to prevent the product placing seat from being too close to the L-shaped pressing rod, the L-shaped pressing rod comprises a protruding part, and the protruding part is positioned on one side of the longitudinal rod-shaped structure, which faces the product placing seat. In a preferred embodiment of the present invention, the protruding portion is tapered toward the end of the product placing seat, and the protruding portion contacts with the stopper during machining, so as to better compress the part to be machined for machining.

Preferably, the pressing device further comprises a guide rod, the guide rod is vertically fixed with the L-shaped pressing rod, and the direction of the guide rod is consistent with the movement direction of the piston of the cylinder or the sliding direction of the L-shaped pressing rod. The pressing device also comprises a partition plate, a hole is formed in the partition plate, and the guide rod penetrates through the hole in the partition plate and is perpendicular to the plane of the partition plate. The partition board may be in various shapes, such as circular, oval, square, triangular or polygonal plate, etc. The length of the L-shaped pressing rod is larger than the distance from the upper end of the L-shaped pressing rod to the linker. When the piston props against the L-shaped pressing rod, one part of the piston touches the partition plate, and the impact force on the L-shaped pressing rod is reduced.

In a preferred embodiment of the invention, the L-shaped hold-down bar further comprises a bar-like structure II perpendicular to the longitudinal bar. The direction and the position of the rod-shaped structure II are matched with the motion trail of the piston. When the piston is ejected out of the cylinder, the rod-shaped structure II penetrates into the center of the piston, and the piston moves along the rod-shaped structure II, is sleeved on the periphery of the rod-shaped structure II and abuts against the L-shaped pressing rod.

Preferably, the linker has a notch, which is matched with the L-shaped compression bar, surrounding the junction of the transverse rod-like structure and the longitudinal rod-like structure. The transverse rod-like structure can be fixed with the linker through a rod-like structure, such as a relatively firm cylinder-like, conical or rectangular rod-like structure like a steel pin, a screw, a solid plastic rod, a pin and the like. Preferably, the recesses of the link also receive parts of the transverse rod-like structure, which on the one hand makes the connection between the transverse rod-like structure and the longitudinal rod-like structure more stable and on the other hand makes the horizontal force be better converted into a vertical downward pressing force.

Preferably, the direction of the transverse rod-shaped structure is consistent with the sliding direction of the L-shaped pressing rod, and the transverse rod-shaped structure is positioned on one side, facing the product placing seat, of the L-shaped pressing rod.

Preferably, the pressing device further comprises a machining cutter, the machining cutter moves vertically relative to the workbench and is used for machining the product to be machined when contacting the product to be machined.

The processing tool can also be at other angles with the workbench or the product placing seat. The distance between the machining cutter and the pressing device can be adjusted, and when a part product is machined, the machining cutter is moved to the part to be machined of the part to be machined according to the position of the part to be machined and a design drawing. And after the part is machined, separating the machining cutter from the machined product. Therefore, the parts to be processed can be conveniently taken and placed, the parts are quickly taken and placed, the processing speed is increased, and the processing efficiency is increased.

The utility model discloses owing to adopt above technical scheme, make it compare with prior art, have following advantage and positive effect:

1. and clamping the workpiece with the special appearance. The pressing structure can well solve the problem of workpiece pressing by utilizing the pressing structure, wherein the workpiece with the inner hole cannot be clamped and pressed by the special outer shape or the workpiece with the inner hole has the machining content pressing and clamping device interference at the periphery.

2. The workpiece is convenient to take. The problem of this type of work piece fast compaction get put fast is solved well to do not hinder work piece periphery processing.

Drawings

Fig. 1 is an exploded view of an assembly.

Fig. 2 is a schematic view of portions of the hold-down device.

Wherein, the illustration of the parts:

1 is a machining tool; 2 is a processing product; 3 is a product placing seat; 4 is an L-shaped hold-down bar; 5 is a linker; 6 is a guide bar; and 7 is a cylinder.

Fig. 3 is an operation diagram of the pressing device during machining.

Wherein 31 is a stop block; 32 is a longitudinal rod-like structure; 33 is a transverse rod-like structure; 34 is a piston; 35 is a projection; 36 is a partition plate; 37 is lever structure I.

Therefore, the cutter is relatively independent in position, interference with the product to be processed is avoided during processing, and the product to be processed can be taken and placed quickly. During processing, the piston is ejected out by the cylinder to generate horizontal acting force. The piston props against the L-shaped pressing rod through the linker. After the L-shaped pressing rod touches the stop block, the horizontal acting force is converted into a vertical downward pressing force through the linker, so that the product for processing is pressed on the product placing seat.

Figure 4 is after the processing completion the utility model discloses a closing device maps.

It can be seen that, processing finishes, and the seat is placed to the product makes things convenient for the product to get fast and puts, and the cylinder returns after processing.

Detailed Description

The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

Example 1

As shown in fig. 1 the utility model provides a compressing device, compressing device include that the product is placed seat, L type and is compressed tightly pole, linker, cylinder. The product placing seat is directly fixed on the workbench, and the cylinder is fixed on the workbench through a screw and a nut. The L-shaped pressing rod is arranged on the workbench and slides between the product placing seat and the cylinder in a reciprocating mode through the sliding rail. The linker is in a shape of a cylinder, and a gap of the linker wraps a longitudinal rod of the L-shaped pressing rod and is fixed with the L-shaped pressing rod through a pin. The transverse rods are fixedly connected with the longitudinal rods. The cylinder contains a piston; one flat surface of the linker is in contact with one flat surface of the piston of the cylinder.

During the use, will treat that the processing product is placed and is put chucking as far as possible on the seat. And starting the air cylinder, and pushing the piston to horizontally move towards the direction of the product placing seat when the air in the air cylinder is full. The piston props against the L-shaped pressing rod through the linker. After the L-shaped pressing rod touches the stop block, the horizontal acting force is converted into a vertical downward pressing force through the linker, so that the product for processing is pressed on the product placing seat. And then, using a machining cutter to be close to the product to be machined as much as possible, and finishing machining of the product according to the drawing. After the machining is finished, the piston retreats to the cylinder, the L-shaped pressing rod moves towards the direction of the cylinder, and a machined product is not pressed.

Example 2

As shown in fig. 2, in this embodiment, on the basis of embodiment 1, a protrusion is added to the bottom end of the longitudinal rod of the L-shaped pressing rod. The protrusion points to the product placement seat. The top end of the protruding part is designed to be conical, so that the conversion from horizontal acting force to vertical downward pressing force is better carried out. When the piston of the cylinder pushes the L-shaped pressing rod to move towards the product placing seat, the protrusion part of the L-shaped pressing rod firstly contacts and presses the stop block of the product placing seat. On one hand, stronger vertical downward pressing force is generated, and on the other hand, the L-shaped pressing rod and the product are prevented from being placed and seated too tightly to cause damage to the L-shaped pressing rod or the product in the machining process.

Example 3

As shown in fig. 3, the machining tool is provided independently of the pressing device. The distance between the machining cutter and the pressing device can be adjusted, and when a part product is machined, the machining cutter is moved to the part to be machined of the part to be machined according to the position of the part to be machined and a design drawing. After the part is machined, the machining cutter is separated from the machined product, and the distance between the machining cutter and the product placing seat is set according to the size and the shape of the machined product and even is far away from the workbench (figure 4). Therefore, the parts to be processed can be conveniently taken and placed, the parts are quickly taken and placed, the processing speed is increased, and the processing efficiency is increased.

As those skilled in the art will appreciate, the invention may be embodied in many other specific forms without departing from the spirit or scope thereof. Although embodiments of the present invention have been described, it is to be understood that the present invention should not be limited to those precise embodiments, and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.

Claims

1. The pressing device is characterized by comprising a product placing seat (3), an L-shaped pressing rod (4), a linker (5) and a cylinder (7); the product placing seat (3) and the air cylinder (7) are fixed on the workbench, the L-shaped pressing rod (4) is arranged on the workbench and slides between the product placing seat (3) and the air cylinder (7) in a reciprocating manner; the L-shaped pressing rod (4) is movably fixed with the linker (5) through a rod-shaped structure I (37), the L-shaped pressing rod (4) comprises a transverse rod-shaped structure (33) and a longitudinal rod-shaped structure (32), and the transverse rod-shaped structure (33) is fixedly connected with the longitudinal rod-shaped structure (32); the air cylinder (7) comprises a piston (34), and when the air in the air cylinder (7) is full, the piston (34) is pushed to horizontally move towards the direction of the product placing seat (3); one flat surface of the link (5) is in contact with one flat surface of the piston (34) of the cylinder (7).

2. Pressing device according to claim 1, characterized in that the product holder (3) has a slot for the placement of the product (2) to be processed.

3. Pressing device according to claim 1, characterised in that the product holder (3) comprises a stop (31), the stop (31) being located on the side of the product holder (3) facing the cylinder (7).

4. Pressing device according to claim 3, characterized in that the L-shaped pressing bar (4) comprises a projection (35), said projection (35) being located on the side of the longitudinal bar-like structure (32) facing the product holder (3).

5. Pressing device according to claim 4, characterized in that the end of the projection (35) facing the product holder (3) is tapered and that the projection (35) is in contact with the stop (31).

6. The pressing device according to claim 1, characterized in that the pressing device further comprises a guide rod (6), the guide rod (6) is vertically fixed with the L-shaped pressing rod (4), and the direction of the guide rod (6) is consistent with the piston movement direction of the air cylinder (7) or the sliding direction of the L-shaped pressing rod (4).

7. The pressing device of claim 1, further comprising a partition plate (36), wherein the partition plate (36) is provided with a hole, and the guide rod (6) passes through the hole on the partition plate (36) and is perpendicular to the plane of the partition plate (36); the length of the partition plate (36) is larger than the distance from the upper end of the L-shaped pressing rod (4) to the linker (5).

8. Pressing device according to claim 1, characterized in that the link (5) has a notch, which matches the L-shaped pressing bar (4), surrounding the intersection of the transverse bar (33) and the longitudinal bar (32).

9. The pressing device according to claim 1, characterized in that the direction of the transverse rod-like structure (33) coincides with the sliding direction of the L-shaped pressing rod (4) and is located on the side of the L-shaped pressing rod (4) facing the product placing seat (3).

10. A pressing device according to any one of claims 1-9, characterized in that the pressing device further comprises a machining tool (1), the machining tool (1) is vertically movable relative to the table for machining the product (2) to be machined while contacting the product (2) to be machined.