CN215920231U

CN215920231U - Compressing tool

Info

Publication number: CN215920231U
Application number: CN202121949369.9U
Authority: CN
Inventors: 王一; 彭加国; 朱向成
Original assignee: Sichuan Seho Machinery Co ltd
Current assignee: Sichuan Seho Machinery Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-01
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a pressing tool which comprises a pressing mechanism (4), wherein the pressing mechanism (4) comprises an air cylinder (47) and a reversing valve (44), the reversing valve (44) is of a roller lever type mechanical valve structure, two distribution interfaces of the reversing valve (44) are respectively and correspondingly communicated with two air path interfaces of the air cylinder (47), the pressing tool further comprises a collision block (2), and the collision block (2) can automatically press a roller of the reversing valve (44). When the pressing force is applied to the collision block and the roller of the reversing valve, the pressing plate can not press and hold the workpiece any more, manpower is not needed, the labor cost is reduced, and the production efficiency is improved.

Description

Compressing tool

Technical Field

The utility model relates to the field of part machining and manufacturing, in particular to a pressing tool.

Background

The automatic production line comprises a plurality of processes, when each process of a workpiece is processed, the workpiece is limited on the mounting plate by adopting the pressing tool, the pressing tool comprises a pressing plate and a cylinder, the cylinder drives the pressing plate to be pressed on the workpiece, but when the workpiece is required to be taken down from the mounting plate after the workpiece is processed, a worker is required to operate the cylinder, the connection between the pressing plate and the workpiece is released, and then the workpiece is taken down. That is to say, need to set up special staff and observe whether the work piece is accomplished processing, then operate the cylinder, take off the work piece after opening the clamp plate. This approach increases labor costs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pressing tool aiming at the technical problem that the labor cost is increased by the conventional mode of starting a cylinder.

In order to realize the purpose of the utility model, the utility model provides the following technical scheme:

the utility model provides a compress tightly frock, includes hold-down mechanism, hold-down mechanism includes cylinder and switching-over valve, the switching-over valve is gyro wheel lever type mechanical valve structure, two distribution interfaces of switching-over valve respectively with two gas circuit interfaces of cylinder are to corresponding, still including hitting the piece, hit the piece and be used for automatic oppression the gyro wheel of switching-over valve. According to the technical means, when two distribution interfaces of the reversing valve and two air path interfaces of the cylinder are communicated in a one-to-one correspondence mode, two of the four interfaces are located on an air inlet channel of the cylinder, and the other two interfaces are located on an air exhaust channel of the cylinder; the conversion of two different working states of the reversing valve is also called reversing, namely the conversion of the gas supply function state and the gas exhaust function state of the two interfaces. When the air cylinder is at the first working position, if the interface A supplies air, the interface B exhausts air, at the moment, the interface communicated with the interface A on the air cylinder forms an air inlet interface of the air cylinder, and the other interface forms an exhaust interface; when the reversing valve is at the second working position, the interface A exhausts air and the interface B supplies air. If the piston rod of the cylinder extends out when the interface A supplies air, the piston rod of the cylinder retracts when the interface B supplies air, and thus two different working states are formed. This scheme hits the piece through the setting, when hold-down mechanism moved the settlement position, hit the gyro wheel of the automatic oppression switching-over valve of piece, and then make high-pressure gas air feed route change and form the switching-over of air inlet and exhaust exchange, high-pressure gas gets into from another air inlet of cylinder, discharge from original air inlet, and then can change the direction of motion of the piston rod of cylinder, and then make the clamp plate no longer press and hold on the work piece (the direction of motion of the piston rod of cylinder here is relevant with the relative position of cylinder and work piece, if the cylinder is located the top of work piece, when then the piston rod of cylinder moved down, the clamp plate no longer presses and holds on the work piece, otherwise, when the piston rod of cylinder moved up, the clamp plate no longer presses and holds on the work piece).

Further, hold-down mechanism still includes clamp plate and mounting panel, the mounting panel is fixed on the carousel, be equipped with the connecting rod between mounting panel and the cylinder, the clamp plate is articulated with the one end of connecting rod, the other end of connecting rod is articulated with the carousel, the one end of clamp plate with the piston rod of cylinder is articulated, and the other end for the connecting rod orientation is close to the direction of mounting panel and stretches out.

According to the technical means, the piston rod, the connecting rod and the pressing plate of the air cylinder form a lever mechanism with a hinged fulcrum movable, wherein the hinged point of the pressing plate forming the lever changes position along with the deflection of the connecting rod, and compared with a fixed fulcrum, the deflection amplitude or the opening and closing degree of the pressing plate is increased, and the workpiece is more convenient to assemble and disassemble.

Further, the clamp plate is Y-shaped, the opening end of the clamp plate faces the mounting plate, and downward extending press blocks are arranged on two sides of the opening end, so that when the clamp plate swings downwards to a limit position, the press blocks can press and hold a workpiece, and the workpiece is placed on the mounting plate.

According to the technical means, the area of the workpiece pressed and held by the pressing plate is increased, so that the workpiece cannot deviate in the machining process.

Further, the bump is arranged outside the disk in the radial direction.

Further, the striker is configured in an arc shape.

According to the technical means, the spring in the roller lever type mechanical valve can be slowly deformed, and the phenomenon that the spring is damaged due to overlarge deformation speed is avoided.

Further, a base is arranged below the rotary table, a rotary cylinder is fixed on the base, and a rotary shaft of the rotary cylinder is connected with the rotary table.

According to the technical means, the turntable can rotate.

Further, the number of the pressing mechanisms is multiple, and the pressing mechanisms are evenly arranged along the circumferential direction of the rotating shaft of the rotating cylinder.

According to the technical means, a plurality of processes can be synchronously performed.

Furthermore, the two sides of the mounting plate are also provided with limiting columns.

According to the technical means, the workpiece is prevented from falling off in the rotating process of the turntable.

Compared with the prior art, the utility model has the beneficial effects that:

when the pressing force is applied to the collision block and the roller of the reversing valve, the pressing plate can not press and hold the workpiece any more, manpower is not needed, the labor cost is reduced, and the production efficiency is improved.

Description of the drawings:

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

FIG. 2 is a schematic view of the pressing mechanism and the collision block;

FIG. 3 is a schematic view of the pressing mechanism and the collision block;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

The labels in the figure are: 1-a turntable; 2-collision block; 3-a base; 4-a pressing mechanism; 41-mounting plate; 42-a pressure plate; 43-briquetting; 44-a diverter valve; 45-limiting columns; 46-a connecting rod; 47-cylinder.

Detailed Description

The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.

The embodiment provides a pressing tool, as shown in fig. 1, the pressing tool includes a turntable 1, a base 3 is arranged below the turntable 1, a rotary cylinder (not shown in the figure) is arranged on the base 3, a rotary shaft of the rotary cylinder is connected with the turntable 1 and can drive the turntable 1 to rotate, a plurality of pressing mechanisms 4 are arranged on the turntable 1, and the pressing mechanisms 4 are uniformly distributed along the circumferential direction of the rotary shaft of the rotary cylinder.

As shown in fig. 2-4, the pressing mechanism 4 includes a mounting plate 41, the mounting plate 41 is fixed on the turntable 1, the mounting plate 41 is used for placing a workpiece, a pressing plate 42 is further fixed on the turntable 1, one end of the pressing plate 42 is hinged to a piston rod of an air cylinder 47, a connecting rod 46 is arranged between the air cylinder 47 and the mounting plate 41, one end of the connecting rod 46 is hinged to the pressing plate 42, and the other end of the connecting rod 46 is hinged to a fixed seat fixed on the turntable 1, so that the piston rod of the air cylinder 47, the pressing plate 42 and the connecting rod 46 form a lever mechanism with a movable hinge pivot, when the piston rod of the air cylinder 47 moves downward, the connecting rod 46 is driven to swing upward, so that the pressing plate 42 is not pressed on the workpiece, and when the piston rod of the air cylinder 47 moves upward, the pressing plate 42 is pressed on the workpiece.

The pressing plate 42 is of a Y-shape, the opening end of the pressing plate 42 is close to the mounting plate 41, pressing blocks 43 extending downwards are arranged on two sides of the end part, the pressing force exerted on the workpiece is increased, the workpiece is more stable and not prone to shifting, the machining precision is affected, and the other end of the pressing plate is hinged to a piston rod of the air cylinder 47.

The outer part of the radial direction of the rotating disc 1 is provided with a collision block 2, the collision block 2 is connected with the base 3, the pressing mechanism 4 further comprises a reversing valve 44, the reversing valve 44 is of a roller lever type mechanical valve structure, an air source, the reversing valve 44 and the air cylinder 47 are sequentially communicated, and the reversing valve 44 is a roller lever type mechanical valve in the embodiment. The roller lever type mechanical valve is provided with a roller, a lever and a mandrel, when the roller is pressed, the mandrel is compressed through the lever, so that the mandrel moves downwards, and the flowing direction of gas is changed.

In this embodiment, when the roller of the direction valve 44 is not pressed, the gas source passes through the direction valve 44 to introduce high-pressure gas into the hole a of the cylinder 47, and then the gas flows out from the hole B, i.e. the gas flows from the hole a to the hole B, so that the hydraulic oil is driven to keep the piston rod of the cylinder 47 in an extended state, and the pressing block 43 is pressed on the workpiece.

The reversing valve 44 is provided with a roller, the collision block 2 and the reversing valve 44 are in proper relative positions, when a workpiece is machined, the pressing mechanism 4 is just rotated by the rotary table 1 by 360 degrees, then the roller of the reversing valve 44 is abutted against the collision block 2, so that the collision block 2 exerts a pressing force on the roller of the reversing valve 44, the pressing force drives the mandrel to move, and further the flowing direction of high-pressure gas is changed, namely the high-pressure gas flows in from the hole B of the cylinder 47 and flows out from the hole A after passing through the reversing valve 44, so that the piston rod of the cylinder 47 moves downwards, and further the pressing block 43 is not pressed on the workpiece.

In this embodiment, the shape of the striking block 2 is arc, and the striking block 2 envelops a part of the rotating disc 1 in the radial direction of the rotating disc 1, which is advantageous in that when the pressing mechanism 4 rotates to the position where the reversing valve 44 abuts against the striking block 2, the spring connected with the mandrel can be slowly compressed, thereby avoiding the damage to the spring caused by the excessive pressure change.

Limiting columns 45 are arranged on two sides of the mounting plate 41 in the embodiment, so that the workpiece is prevented from falling off in the rotating process of the turntable 1.

Claims

1. The utility model provides a compress tightly frock which characterized in that: the device comprises a pressing mechanism (4), wherein the pressing mechanism (4) comprises an air cylinder (47) and a reversing valve (44), the reversing valve (44) is of a roller lever type mechanical valve structure, and two distribution interfaces of the reversing valve (44) correspond to two air path interfaces of the air cylinder (47) respectively; the automatic reversing valve further comprises a collision block (2), and the collision block (2) is used for automatically pressing the roller of the reversing valve (44).

2. The compaction tool of claim 1, wherein: hold-down mechanism (4) still include clamp plate (42) and mounting panel (41), mounting panel (41) are fixed on carousel (1), be equipped with connecting rod (46) between mounting panel (41) and cylinder (47), clamp plate (42) are articulated with the one end of connecting rod (46), the other end and carousel (1) of connecting rod (46) are articulated, the one end of clamp plate with the piston rod of cylinder (47) is articulated, the other end for connecting rod (46) orientation is stretched out near the direction of mounting panel (41).

3. The compaction tool of claim 2, wherein: the pressure plate (42) is Y-shaped, the open end of the pressure plate (42) faces the mounting plate (41), and two sides of the open end are provided with pressing blocks (43) extending downwards, so that when the pressure plate (42) swings downwards to a limit position, the pressing blocks (43) move towards the mounting plate (41).

4. The compaction tool of claim 2, wherein: the striking block (2) is arranged outside the turntable (1) in the radial direction.

5. The compaction tool of claim 4, wherein: the striking block (2) is arc-shaped.

6. The compaction tool of claim 5, wherein: the rotary table is characterized in that a base (3) is arranged below the rotary table (1), a rotary cylinder (47) is fixed on the base (3), and a rotary shaft of the rotary cylinder (47) is connected with the rotary table (1).

7. The compaction tool of claim 6, wherein: the number of the pressing mechanisms (4) is multiple, and the pressing mechanisms are uniformly arranged along the circumferential direction of the rotary table (1).

8. The compaction tool of claim 2, wherein: and limiting columns (45) are arranged on two sides of the mounting plate (41).