Pneumatic clamp for punch station

Abstract

The utility model belongs to the technical field of work fixtures, and provides a pneumatic fixture for a punch station. The multiple air cylinders are installed on the upper surface of the base plate in a circumferential array mode, and clamping plates are installed at the telescopic ends of the air cylinders; the air pipe assembly comprises air pipes and a three-way pipe, and the air pipes symmetrically communicate with the air cylinders and communicate with the three-way pipe; by arranging the air cylinder and the air pipe assembly, force can be evenly applied to a workpiece from multiple directions, it is ensured that the workpiece is kept stable in the punching machine machining process, the machining precision is improved, the position of the clamping plate can be flexibly adjusted, the clamp is suitable for workpieces of different sizes and shapes, and the universality of the clamp is improved; the air pipe assembly stably and evenly transmits an external air source to all the air cylinders, synchronous action is achieved, and the clamping stability and reliability are further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling fixtures, in particular to a pneumatic fixture used for a punching machine station. Background Art

[0002] A CNC punch press, short for digitally controlled punch press, is equipped with a program control system that logically processes programs specified by control codes or other symbolic instructions, and operates the punch press to process parts. The stations on a CNC punch press refer to the number of mold positions on the turntable. As many sets of molds can be installed as there are stations, there are many.

[0003] The existing punching station uses a suction cup clamp, which is prone to insufficient adhesion for heavier workpieces, causing the workpiece to move or shake, affecting the processing accuracy.

[0004] Therefore, those skilled in the art have proposed a pneumatic clamp for a punching station to solve the problems raised in the background art. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a pneumatic clamp for a punching station, so as to solve the problem that the punching station in the prior art adopts a suction cup type clamp, which is prone to insufficient adhesion for heavier workpieces.

[0006] A pneumatic clamp for a punching machine station comprises: a base plate; cylinders, wherein a plurality of the cylinders are mounted in a circular array on the upper surface of the base plate, and a clamping plate is mounted on the telescopic end of the cylinder; an air pipe assembly, which comprises an air pipe and a tee pipe, wherein the air pipe is symmetrically connected between the plurality of the cylinders, and the air pipe is connected to the tee pipe.

[0007] Preferably, the three-way pipe includes a connecting pipe and two sets of output pipes, the air pipes are symmetrically connected to the output pipes, and the connecting pipes are connected to the air supply equipment.

[0008] Preferably, a plurality of fixing bolts are connected between the cylinder and the base plate, and the fixing bolts are located at the bottom surface of the base plate.

[0009] Preferably, a limiting frame is installed on the upper surface of the substrate, and the limiting frame is installed on the tee pipe.

[0010] Preferably, the substrate is made of acrylic material.

[0011] Preferably, a cutting portion is provided on the surface of the substrate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model is capable of applying uniform force to the workpiece from multiple directions by arranging the cylinder and the air pipe assembly, thereby ensuring that the workpiece remains stable during the punching process, improving the processing accuracy, and flexibly adjusting the position of the clamp to adapt to workpieces of different sizes and shapes, thereby improving the versatility of the clamp; the air pipe assembly stably and evenly transmits the external air source to each cylinder to achieve synchronous action, further improving the stability and reliability of clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the right side three-dimensional structure of the utility model;

[0016] Figure 3 It is a bottom-view three-dimensional structural schematic diagram of the present invention.

[0017] In the picture:

[0018] 1. Base plate; 2. Cutting part; 3. Cylinder; 4. Clamp; 5. Air pipe; 6. Tee; 601. Output pipe; 602. Connecting pipe; 7. Limiting frame; 8. Fixing bolts. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] Example 1: As shown in the attached Figure 1 The present invention provides a pneumatic clamp for a punching machine station, comprising a base plate 1 and a cylinder 3. The base plate 1 is made of acrylic material, and the cylinders 3 are in four groups. The cylinders 3 are fixedly mounted on the upper surface of the base plate 1 in a circular array. A clamping plate 4 is mounted on the telescopic end of the cylinder 3. By controlling the working stroke of the cylinder 3, the clamping plate 4 can change the working stroke; at the same time, multiple groups of cylinders 3 are controlled to allow multiple groups of clamping plates 4 to be extended and retracted at the same time, thereby achieving stable clamping of the workpiece, avoiding the situation where the suction cup cannot fit tightly against the workpiece surface, resulting in local vacuum leakage and a decrease in adsorption force; the cylinders 3 are distributed in a circular array and can apply uniform force to the workpiece from multiple directions, ensuring that the workpiece remains stable during the punching machine processing and improving the processing accuracy; by controlling the working stroke of the cylinder 3, the position of the clamping plate 4 can be flexibly adjusted to adapt to workpieces of different sizes, thereby improving the versatility of the clamp; compared with the suction cup clamp, the situation where the suction cup cannot fit tightly against the workpiece surface, resulting in local vacuum leakage and a decrease in adsorption force, is avoided;

[0021] The air pipe assembly includes an air pipe 5 and a tee pipe 6. The air pipe 5 is symmetrically connected between several cylinders 3, and the air pipe 5 is connected to the tee pipe 6. By setting the tee pipe 6 and the air pipe 5, the external air source can be stably and evenly transmitted to the cylinder 3, ensuring that multiple groups of cylinders 3 can be evenly supplied with air, and are arranged in a ring shape on the base plate 1 to prevent the air pipe 5 from affecting the device's clamping of the workpiece.

[0022] As attached Figure 1 and 2 As shown: the three-way pipe 6 includes a connecting pipe 602 and two groups of output pipes 601. The air pipe 5 is symmetrically connected to the output pipe 601. The connecting pipe 602 is connected to the air supply equipment. The air source can be stably dispersed and introduced into the air pipe 5 through the connecting pipe 602, thereby stably controlling multiple groups of cylinders 3 at the same time, greatly improving the overall working stability of the device.

[0023] Several fixing bolts 8 are connected between the cylinder 3 and the base plate 1, and the fixing bolts 8 are located on the bottom surface of the base plate 1. The cylinder 3 is stably mounted on the base plate 1 through the fixing bolts 8, ensuring the firmness of the cylinder 3 during operation and preventing it from loosening or shifting due to the vibration of the punch press. The acrylic base plate 1 is easy to perform hole drilling operations, which facilitates the installation of the cylinder 3 and the air pipe assembly and also improves the stability of the installation.

[0024] A limiting frame 7 is installed on the upper surface of the substrate 1, and the limiting frame 7 is installed on the tee pipe 6; by setting the limiting frame 7, it is ensured that the tee pipe 6 and the air pipe 5 are stably attached to the surface of the substrate 1, avoiding the influence of pipeline shaking on the air supply and clamping effect.

[0025] As can be seen from the above, since the base plate 1 is made of acrylic material, the entire device can perform the hole-drilling operation stably, which improves the installation stability of the cylinder 3 and the air pipe assembly. The pneumatic clamp is installed on the punching station to ensure that the base plate 1 is firmly fixed. The tee pipe 6 is connected to the external air supply equipment through the connecting pipe 602. The air pipe 5 is symmetrically connected to the output pipe 601 of the tee pipe 6, and it is ensured that the air pipe 5 is tightly connected to each cylinder 3. The initial position of the clamp 4 is checked to ensure that it is in an open state and does not affect the placement of the workpiece.

[0026] The workpiece to be processed is placed on the base plate 1, in the middle of the cylinders 3 arranged in a circular array. At this time, since the cylinders 3 are not moving, there is a certain gap between the clamping plate 4 and the workpiece.

[0027] The external air supply device is turned on, and the compressed air enters the tee pipe 6 through the connecting pipe 602. Under the action of the tee pipe 6, the gas is evenly distributed to the two sets of output pipes 601, and then transmitted to each cylinder 3 through the symmetrically arranged air pipes 5.

[0028] After the cylinder 3 receives the compressed air, its telescopic end begins to extend, driving the clamping plate 4 to move toward the workpiece. Since the four groups of cylinders 3 are distributed in a circular array, the clamping plate 4 moves toward the center from different directions at the same time, gradually clamping the workpiece.

[0029] By controlling the working stroke of the cylinder 3, the clamping force and position of the clamping plate 4 can be adjusted according to the size and shape of the workpiece to ensure that the workpiece is stably clamped.

[0030] Example 2: As shown in the attached Figure 1-3 As shown: Based on the first embodiment, a cutting portion 2 is provided on the surface of the substrate 1 .

[0031] As can be seen from the above, by providing the cutting portion 2, a partial area of ​​the substrate 1 can be cut to adapt to the size of the punching station, so that the fixture can be installed on the guide rail component to stably perform translation operations, thereby improving the overall flexibility of the device.

[0032] The cutting portion 2 allows the substrate 1 to be adjusted in size according to actual needs, adapting to the size requirements of different punching stations and meeting the needs of different processing scenarios.

[0033] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

[0034] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0035] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0037] In the description of this specification, the reference terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0038] The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the present invention may be combined with each other.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pneumatic clamp for a punching station, characterized in that: include: base(1); Cylinders (3), a plurality of the cylinders (3) are mounted on the upper surface of the base plate (1) in a circumferential array, and a clamping plate (4) is mounted on the telescopic end of the cylinders (3); The air pipe assembly comprises an air pipe (5) and a three-way pipe (6), wherein the air pipe (5) is symmetrically connected between a plurality of the air cylinders (3), and the air pipe (5) is connected to the three-way pipe (6).

2. A pneumatic clamp for a punching station according to claim 1, characterized in that: The three-way pipe (6) comprises a connecting pipe (602) and two groups of output pipes (601), the air pipe (5) is symmetrically connected to the output pipe (601), and the connecting pipe (602) is connected to the air supply equipment.

3. A pneumatic clamp for a punching station as claimed in claim 2, characterized in that: A plurality of fixing bolts (8) are connected between the cylinder (3) and the base plate (1), and the fixing bolts (8) are located at the bottom surface of the base plate (1).

4. A pneumatic clamp for a punching station according to claim 1, characterized in that: A limiting frame (7) is installed on the upper surface of the base plate (1), and the limiting frame (7) is installed on the three-way pipe (6).

5. A pneumatic clamp for a punching station as claimed in claim 1, characterized in that: The substrate (1) is made of acrylic material.

6. A pneumatic clamp for a punching station as claimed in claim 5, characterized in that: A cutting portion (2) is provided on the surface of the substrate (1).

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