A novel composite cylinder clamping device

Abstract

This utility model relates to the field of fixture clamping technology and discloses a novel composite cylinder clamping device, including a fixture body and a composite cylinder. The composite cylinder is disposed inside the fixture body, and the output end of the composite cylinder is connected to a pull head via a connecting pin. The pull head can perform upward, rotating, and downward movements under the drive of the composite cylinder. The fixture body is provided with a channel for the pull head to extend and retract at the position corresponding to the position of the lens hole of the product. This utility model drives the pull head to perform composite movements through the composite cylinder, which can penetrate into the small space of the lens hole of the product to achieve clamping. This overcomes the defect of ordinary cylinders that cannot directly clamp in small spaces. Under the drive of the composite cylinder, the pull head can first sink below the lens protective shell to avoid collision when placing the product, and then rise, rotate, and pull down to achieve clamping. The clamping is accurate and reliable, and effectively improves the stability of processing.

Description

Technical Field

[0001] This utility model relates to the field of jig clamping technology, specifically a novel composite cylinder clamping device. Background Technology

[0002] In the field of machining, especially in the CNC machining of precision parts, clamping devices play a crucial role. Early clamping devices mostly used manual clamping methods, fixing the workpiece manually with bolts, jigs, etc. This method was not only inefficient, but also difficult to control the clamping force, easily leading to low workpiece machining accuracy. With the development of industrial automation, pneumatic clamping devices have gradually gained widespread application. Clamping devices using cylinders as a power source are widely used in various processing equipment due to their advantages such as fast response speed and convenient operation.

[0003] However, in existing technologies, CNC machining of the lens hole area mainly relies on large-plane adsorption and peripheral clamping. This clamping method has significant drawbacks: there is no clamping force at the lens hole, making the dimensions controlled in this area prone to instability, thus increasing the defect rate. Furthermore, due to the limited space at the lens hole, the structure and movement of ordinary cylinders make it difficult to directly clamp and machine the lens hole, failing to meet the precision and stability requirements of precision machining, and limiting the improvement of processing efficiency and product quality. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel composite cylinder clamping device, which has the advantages of effectively clamping the lens hole, improving the stability of processing dimensions, reducing the defect rate, and adapting to small space processing environments. It solves the problems of existing clamping methods having no clamping force at the lens hole, resulting in unstable dimensions and high defect rates, as well as the difficulty of ordinary cylinders to achieve direct clamping in small spaces.

[0005] To achieve the aforementioned objectives of effectively clamping the lens hole, improving dimensional stability during processing, reducing defect rates, and adapting to small-space processing environments, this utility model provides the following technical solution: A novel composite cylinder clamping device, comprising a fixture body and a composite cylinder, wherein the composite cylinder is disposed inside the fixture body, and the output end of the composite cylinder is connected to a pull head via a connecting pin, the pull head being able to perform upward, rotating, and downward movements under the drive of the composite cylinder, and the fixture body having a channel corresponding to the position of the pull head for extending and retracting the pull head, the channel corresponding to the position of the lens hole on the product.

[0006] Preferably, the composite cylinder includes a cylinder body, a lifting drive mechanism, and a rotating drive mechanism. Both the lifting drive mechanism and the rotating drive mechanism are located inside the cylinder body. The lifting drive mechanism is used to drive the pull head to perform upward and downward movements, and the rotating drive mechanism is used to drive the pull head to perform rotational movements.

[0007] Preferably, the end of the pull head is provided with a clamping part that is adapted to the lens hole of the product.

[0008] Preferably, the fixture body is provided with a lens protective shell, which surrounds the outside of the lens hole of the product, and the pull head can be recessed below the lens protective shell.

[0009] Preferably, the connecting pin is made of high-strength alloy material, and the connection between the connecting pin and the output end of the composite cylinder and the pull head is detachable.

[0010] Preferably, the lifting stroke of the composite cylinder is 10mm, and the rotation angle of the composite cylinder is 90°.

[0011] Preferably, the fixture body is further provided with a vacuum adsorption device, which is used to pre-fix the product before the pull head clamps the product.

[0012] Preferably, the lens protective housing is provided with a sloping chip removal groove, which is connected to the chip removal channel on the fixture body.

[0013] Preferably, the lens protective housing is further provided with an air blowing structure, and the air outlet of the air blowing structure faces the lens hole of the product.

[0014] Preferably, the fixture body is made of cast iron and has a wear-resistant layer on its surface.

[0015] Compared with the prior art, this utility model provides a novel composite cylinder clamping device, which has the following beneficial effects: 1. This novel composite cylinder clamping device uses a composite cylinder to drive a pull head in a composite motion, enabling it to reach deep into the small space around the lens aperture of the product for clamping. This overcomes the limitation of ordinary cylinders, which cannot directly clamp in small spaces. Driven by the composite cylinder, the pull head first sinks below the lens protective shell to prevent collisions when placing the product, then rises, rotates, and pulls down to achieve clamping. The entire process is highly automated, with precise and reliable clamping, effectively improving processing stability.

[0016] 2. This novel composite cylinder clamping device, by incorporating a sloping chip removal groove and air blowing structure on the lens protective housing, combined with the clamping action of the pull head, can promptly remove waste chips generated during processing, preventing chip accumulation from affecting processing accuracy and product quality. Simultaneously, the fixture body is made of cast iron and undergoes wear-resistant treatment, extending the device's service life. The vacuum adsorption device further improves the stability of the product during processing. These multiple structures work together to comprehensively enhance the processing effect. Attached Figure Description

[0017] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rear of the overall structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of this utility model. Figure 4 This is a schematic diagram of the composite cylinder structure of this utility model.

[0018] In the diagram: 1. Fixture body; 2. Composite cylinder; 21. Cylinder body; 3. Connecting pin; 4. Pull head; 41. Clamping part; 5. Channel; 51. Product lens hole; 6. Lens protective shell; 7. Vacuum adsorption device; 8. Sloping chip removal groove; 9. Air blowing structure; 91. Air outlet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 A novel composite cylinder clamping device includes a fixture body 1, a composite cylinder 2, a connecting pin 3, and a pull head 4. The composite cylinder 2 is housed inside the fixture body 1. The cylinder body of the composite cylinder 2 is a commercially available component. Its internal lifting drive mechanism provides stable lifting power, and its rotation drive mechanism enables precise 90° rotation. The output end of the composite cylinder 2 is connected to the pull head 4 via the connecting pin 3. The connecting pin 3 is made of high-strength alloy material, has a diameter of 8mm, and a length of 20mm. It is threadedly connected to the output end of the composite cylinder 2 and the pull head 4 for easy disassembly and replacement. The end of the pull head 4 is provided with a clamping part 41 that matches the lens hole 51 of the product. The surface of the clamping part 41 is provided with anti-slip texture to increase friction with the product and improve clamping stability.

[0021] The fixture body 1 is made of cast iron and its surface has been hardened and wear-resistant, achieving a hardness of HRC50-55, thus improving the fixture's service life. A channel 5, 15mm in diameter, is provided on the fixture body 1 corresponding to the position of the pull head 4 for its extension and retraction, aligning with the position of the product's lens hole 51. A lens protective shell 6, made of plastic, is provided on the fixture body 1, surrounding the outside of the product's lens hole 51, allowing the pull head 4 to be recessed below the lens protective shell 6.

[0022] The composite cylinder 2 has a lifting stroke of 10mm and a rotation angle of 90°, enabling precise control of the movement trajectory of the zipper head 4. The fixture body 1 is also equipped with a vacuum adsorption device 7, which has an adsorption force of 0.5MPa and is used to pre-fix the product before the zipper head 4 clamps it. The lens protective shell 6 is equipped with a sloping chip removal groove 8, with an inclination angle of 30°, which connects to the chip removal channel 5 on the fixture body 1 for easy chip removal. The lens protective shell 6 is also equipped with an air blowing structure 9, whose air outlet 91 has a diameter of 2mm and an air pressure of 0.3MPa, facing the lens hole, which blows chips towards the sloping chip removal groove 8.

[0023] Working Principle: Before placing the product, the composite cylinder 2 drives the pull head 4 to sink below the lens protective housing 6 to avoid collisions during product placement. After the product is placed on the fixture body 1, the vacuum adsorption device 7 is activated to pre-fix the product. Subsequently, the composite cylinder 2 drives the pull head 4 to move upward 10mm, extending out of the channel 5. Next, the rotary drive mechanism drives the pull head 4 to rotate 90°, aligning the clamping part 41 of the pull head 4 with the lens hole 51 of the product. The lifting drive mechanism drives the pull head 4 to move downward to clamp the product, and CNC machining begins. During machining, the air blowing structure 9 continuously blows air, blowing waste chips into the inclined chip removal groove 8, which is then discharged through the chip removal channel 5. After machining is completed, the composite cylinder 2 first drives the pull head 4 to move upward, the rotary drive mechanism drives the pull head 4 to rotate in the opposite direction by 90°, and then the lifting drive mechanism drives the pull head 4 to move downward 10mm, retracting it below the lens protective housing 6. The vacuum adsorption device 7 is then turned off, and the product is removed.

[0024] In summary, this novel composite cylinder clamping device, driven by the composite cylinder 2, enables the pull head 4 to perform a composite motion, allowing it to reach deep into the small space of the product's lens hole 51 for clamping, overcoming the limitation of ordinary cylinders that cannot directly clamp in small spaces. Driven by the composite cylinder 2, the pull head 4 first sinks below the lens protective shell 6 to prevent collisions when placing the product, then rises, rotates, and pulls down to achieve clamping. The entire process is highly automated, with precise and reliable clamping, effectively improving processing stability. By setting a sloping chip removal groove 8 and an air blowing structure 9 on the lens protective shell 6, combined with the clamping action of the pull head 4, waste chips generated during processing can be discharged in a timely manner, preventing chip accumulation from affecting processing accuracy and product quality. Simultaneously, the fixture body 1 is made of cast iron and undergoes wear-resistant treatment, extending the device's service life. The vacuum adsorption device 7 further improves the stability of the product during processing. The combined effect of these multiple structures comprehensively enhances the processing results.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel composite cylinder clamping device comprising a jig body (1) and a composite cylinder (2), characterized in that: The composite cylinder (2) is installed inside the fixture body (1). The output end of the composite cylinder (2) is connected to the pull head (4) through the connecting pin (3). The pull head (4) can perform rising, rotating and pulling actions under the drive of the composite cylinder (2). The fixture body (1) is provided with a channel (5) for the pull head (4) to extend and retract at the position corresponding to the position of the pull head (4). The channel (5) corresponds to the position of the lens hole (51) of the product.

2. The novel composite cylinder clamping device according to claim 1, characterized in that: The composite cylinder (2) includes a cylinder body (21), a lifting drive mechanism and a rotating drive mechanism. The lifting drive mechanism and the rotating drive mechanism are both located inside the cylinder body (21). The lifting drive mechanism is used to drive the pull head (4) to perform rising and falling actions, and the rotating drive mechanism is used to drive the pull head (4) to perform rotating actions.

3. A novel composite cylinder clamping device according to claim 1 or 2, characterized in that: The end of the pull head (4) is provided with a clamping part (41) that is adapted to the lens hole (51) of the product.

4. The novel composite cylinder clamping device according to claim 1, characterized in that: The fixture body (1) is provided with a lens protective shell (6), which surrounds the outside of the product lens hole (51), and the pull head (4) can be sunk below the lens protective shell (6).

5. The novel composite cylinder clamping device according to claim 1, characterized in that: The connecting pin (3) is made of high-strength alloy material, and the connection between the connecting pin (3) and the output end of the composite cylinder (2) and the pull head (4) is detachable.

6. The novel composite cylinder clamping device according to claim 1, characterized in that: The lifting stroke of the composite cylinder (2) is 10mm, and the rotation angle of the composite cylinder (2) is 90°.

7. The novel composite cylinder clamping device according to claim 1, characterized in that: The fixture body (1) is also provided with a vacuum adsorption device (7), which is used to pre-fix the product before the pull head (4) clamps the product.

8. A novel composite cylinder clamping device according to claim 4, characterized in that: The lens protective shell (6) is provided with a sloping chip removal groove (8), which is connected to the chip removal channel on the fixture body (1).

9. A novel composite cylinder clamping device according to claim 4, characterized in that: The lens protective housing (6) is also provided with an air blowing structure (9), and the air outlet (91) of the air blowing structure (9) faces the lens hole (51) of the product.

10. A novel composite cylinder clamping device according to claim 1, characterized in that: The fixture body (1) is made of cast iron and has a wear-resistant layer on its surface.

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