Thin-walled metal part clamping device

Abstract

The application discloses a thin-wall metal piece clamping device, which comprises a first machine table, a second machine table and at least two carrier plates. The upper surfaces of the carrier plates are provided with mutually parallel first limiting blocks and second limiting blocks. The first limiting blocks and the second limiting blocks are provided with third limiting blocks and fourth limiting blocks which are perpendicular to the first limiting blocks, so that a clamping area for embedding a thin-wall shell is formed among the first limiting blocks, the second limiting blocks, the third limiting blocks and the fourth limiting blocks. A vacuum generator is arranged below each of the first machine table and the second machine table. The third limiting blocks which are attached to the wall plates to be machined of the thin-wall shell are provided with mutually communicating air grooves on the surfaces of the thin-wall shell. The air grooves are communicated with the corresponding vacuum generators through pipelines. The application is more convenient for loading and unloading the thin-wall shell, and can buffer the pushing force applied to the movable seat, so that the damage of the thin-wall shell caused by the excessive instantaneous force is avoided, and the machining quality is ensured.

Description

Technical Field

[0001] This invention relates to a clamping device for thin-walled metal parts, belonging to the field of electronic product technology. Background Technology

[0002] Currently, smart mobile terminals are incorporating more and more metal components, which are becoming increasingly thinner. Computer numerical control (CNC) machine tools are typically used to process these metal parts. However, thin-walled shells are prone to deformation and have poor rigidity, making them difficult to clamp. Machining thin-walled components has always been a challenge in the field of machining. Summary of the Invention

[0003] The purpose of this invention is to provide a clamping device for thin-walled metal parts. This device can realize the streamlined operation of loading and processing thin-walled shells to be processed, thereby improving processing efficiency, and can also ensure the accuracy of the cutting head in multi-angle processing of the rotating thin-walled shell wall.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a thin-walled metal part clamping device, comprising: a first machine base, a second machine base, and at least two carrier plates, wherein a rotating seat is mounted on one end of the upper surface of the second machine base, one end of a base plate is mounted on the drive shaft of the rotating seat, the other end of the base plate extends to the other end of the second machine base, a processing spindle with a cutting head is disposed above the base plate, and the carrier plate is detachably connected to the first machine base and the base plate mounted on the second machine base; The upper surface of the carrier plate is provided with a first limiting block and a second limiting block that are parallel to each other. A third limiting block and a fourth limiting block that are perpendicular to the first limiting block are provided between the first limiting block and the second limiting block, thereby forming a clamping area for embedding a thin-walled shell between the first limiting block, the second limiting block, the third limiting block and the fourth limiting block. The first limiting block and the third limiting block, which are fixedly installed on the carrier plate, are each attached to the outer surface of a wall panel of the thin-walled shell. The second limiting block is installed on the carrier plate through a first movable seat. A first cylinder for driving the first movable seat to move toward the thin-walled shell is installed on the first machine plate and outside the first movable seat. The fourth limiting block is installed on the carrier plate through a second movable seat. A second cylinder for driving the first movable seat to move toward the thin-walled shell is installed on the first machine plate and outside the first movable seat. The first movable seat and the second movable seat are each connected to the carrier plate by an elastic element. When the first movable seat and the second movable seat are driven by the first cylinder and the second cylinder to move the second limit block and the fourth limit block to fit against the wall panel of the thin-walled shell, the elastic element is in a compressed state. The first movable seat and the second movable seat are connected to the carrier plate by mutually cooperating strip mounting holes and bolts. A vacuum generator is provided below the first machine base and the second machine base. The third limiting block, which is attached to the wall panel to be processed of the thin-walled shell, has interconnected air grooves on its surface facing the thin-walled shell. The air grooves are connected to the corresponding vacuum generators through pipelines. A sealing groove is formed at the edge of the third limiting block facing the surface of the thin-walled shell 6 and outside the air groove.

[0005] The following are further improvements to the above technical solution: 1. In the above scheme, the second machine base is provided with an air hole that connects the pipeline and the vacuum generator.

[0006] 2. In the above scheme, each end of the carrier plate has an outward extension.

[0007] 3. In the above scheme, a cylinder is provided on the lower surface of the substrate and directly below the two extensions.

[0008] 4. In the above solution, the upper end of the cylinder piston rod passes through the mounting notch on the base plate and the extension in sequence, and a pressure block that can press against the upper surface of the extension is installed.

[0009] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The thin-walled metal part clamping device of the present invention, through the cooperative arrangement of two machine tools, realizes the streamlined operation of loading and processing of thin-walled shells to be processed, thereby improving processing efficiency; while facilitating the loading of thin-walled shells to be processed and the unloading of processed thin-walled shells, it can tightly clamp the thin-walled shells without deviation, ensuring the accuracy of multi-angle processing of the rotating thin-walled shell wall by the cutter head, and can also keep the two movable limit blocks in an outwardly open initial state to facilitate the loading and unloading of thin-walled shells, and can buffer the thrust applied to the movable seat to avoid damage to the thin-walled shell caused by excessive instantaneous force, thus ensuring the quality of processing.

[0010] 2. The thin-walled metal part clamping device of the present invention can further ensure the surface fit between each wall plate of the thin-walled shell and the limiting block, and also ensure the tight fit between the wall plate to be processed and the limiting block due to its large area and thin thickness through vacuum adsorption. This avoids vibration and other issues that may occur when the cutter head performs multi-angle processing on the wall plate of the rotating thin-walled shell, thus affecting the processing accuracy and producing tool marks, thereby improving the processing quality. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of the thin-walled metal part clamping device of the present invention; Appendix Figure 2 This is a schematic diagram of the structure of one machine base in the thin-walled metal part clamping device of the present invention; Appendix Figure 3 This is a schematic diagram of the structure of another machine tool in the thin-walled metal part clamping device of the present invention; Appendix Figure 4 This is a partial exploded view of the thin-walled metal part clamping device of the present invention; Appendix Figure 5 This is a partial structural cross-sectional view of the high-efficiency processing device of the present invention from one perspective; Appendix Figure 6 This is a partial structural cross-sectional view of the high-efficiency processing device of the present invention from another perspective; Appendix Figure 7 This is a partial structural cross-sectional view of the high-efficiency processing device of the present invention from a third perspective.

[0012] In the above figures: 1. Carrier plate; 101. Extension; 102. Mounting notch; 2. First limiting block; 3. Second limiting block; 4. Third limiting block; 5. Fourth limiting block; 6. Thin-walled shell; 7. Clamping area; 8. Mounting seat; 91. First movable seat; 92. Second movable seat; 10. Strip mounting hole; 11. Bolt; 12. Protrusion; 13. Air groove; 14. Pipeline; 15. Sealing groove; 16. Elastic element; 171. First machine base; 172. Second machine base; 18. Rotating seat; 19. Machining spindle; 20. Base plate; 201. Vertical part; 202. Horizontal part; 21. Cutting head; 22. Cylinder; 23. Pressing block; 24. First cylinder; 25. Second cylinder. Detailed Implementation

[0013] Example 1: A thin-walled metal part clamping device includes: a first machine base 171, a second machine base 172 and at least two carrier plates 1. A rotating seat 18 is mounted on one end of the upper surface of the second machine base 172. One end of a base plate 20 is mounted on the drive shaft of the rotating seat 18. The other end of the base plate 20 extends to the other end of the second machine base 172. A processing spindle 19 with a cutting head 21 is arranged above the base plate 20. The carrier plates 1 are detachably connected to the first machine base 171 and the base plate 20 mounted on the second machine base 172. The upper surface of the carrier plate 1 is provided with a first limiting block 2 and a second limiting block 3 that are parallel to each other. A third limiting block 4 and a fourth limiting block 5 that are perpendicular to the first limiting block 2 are provided between the first limiting block 2 and the second limiting block 3, thereby forming a clamping area 7 for the thin-walled shell 6 to be embedded between the first limiting block 2, the second limiting block 3, the third limiting block 4, and the fourth limiting block 5. The first limiting block 2 and the third limiting block 4, which are fixedly installed on the carrier plate 1, are each attached to the outer surface of a wall panel of the thin-walled shell 6. The second limiting block 3 is installed on the carrier plate 1 through a first movable seat 91. A first cylinder 24 for driving the first movable seat 91 to move towards the thin-walled shell 6 is installed on the first machine base 171 and located outside the first movable seat 91. The fourth limiting block 5 is installed on the carrier plate 1 through a second movable seat 92. A second cylinder 25 for driving the first movable seat 92 to move towards the thin-walled shell 6 is installed on the first machine base 171 and located outside the first movable seat 92. The first movable seat 91 and the second movable seat 92 are each connected to the carrier plate 1 by an elastic element 16. When the first movable seat 91 and the second movable seat 92 are driven by the first cylinder 24 and the second cylinder 25 to move the second limiting block 3 and the fourth limiting block 5 to fit against the wall panel of the thin-walled shell 6, the elastic element 16 is in a compressed state. The first movable seat 91 and the second movable seat 92 are connected to the carrier plate 1 by mutually cooperating strip mounting holes 10 and bolts 11. A vacuum generator is provided below the first machine base 171 and the second machine base 172. The third limiting block 4, which is attached to the wall panel to be processed of the thin-walled shell 6, has interconnected air grooves 13 on its surface facing the thin-walled shell 6. The air grooves 13 are connected to the corresponding vacuum generator through the pipes 14.

[0014] The second machine base 172 is provided with an air hole that connects the pipeline 14 to the vacuum generator; the carrier plate 1, the first machine base 171, and the base plate 20 mounted on the second machine base 172 are respectively positioned and connected by at least two sets of mutually cooperating guide posts and guide holes. Each end of the aforementioned carrier plate 1 has an outward extension 101. On the lower surface of the aforementioned substrate 20 and directly below the two extensions 101, a cylinder 22 is provided. The upper end of the piston rod of the cylinder 22 passes through the mounting notch 102 on the substrate 20 and the extension 101 in sequence, and a pressure block 23 that can press against the upper surface of the extension 101 is installed.

[0015] Example 2: A thin-walled metal part clamping device includes: a first machine base 171, a second machine base 172 and at least two carrier plates 1. A rotating seat 18 is mounted on one end of the upper surface of the second machine base 172. One end of a base plate 20 is mounted on the drive shaft of the rotating seat 18. The other end of the base plate 20 extends to the other end of the second machine base 172. A processing spindle 19 with a cutting head 21 is arranged above the base plate 20. The carrier plates 1 are detachably connected to the first machine base 171 and the base plate 20 mounted on the second machine base 172. The upper surface of the carrier plate 1 is provided with a first limiting block 2 and a second limiting block 3 that are parallel to each other. A third limiting block 4 and a fourth limiting block 5 that are perpendicular to the first limiting block 2 are provided between the first limiting block 2 and the second limiting block 3, thereby forming a clamping area 7 for the thin-walled shell 6 to be embedded between the first limiting block 2, the second limiting block 3, the third limiting block 4, and the fourth limiting block 5. The first limiting block 2 and the third limiting block 4, which are fixedly installed on the carrier plate 1, are each attached to the outer surface of a wall panel of the thin-walled shell 6. The second limiting block 3 is installed on the carrier plate 1 through a first movable seat 91. A first cylinder 24 for driving the first movable seat 91 to move towards the thin-walled shell 6 is installed on the first machine base 171 and located outside the first movable seat 91. The fourth limiting block 5 is installed on the carrier plate 1 through a second movable seat 92. A second cylinder 25 for driving the first movable seat 92 to move towards the thin-walled shell 6 is installed on the first machine base 171 and located outside the first movable seat 92. The first movable seat 91 and the second movable seat 92 are each connected to the carrier plate 1 by an elastic element 16. When the first movable seat 91 and the second movable seat 92 are driven by the first cylinder 24 and the second cylinder 25 to move the second limiting block 3 and the fourth limiting block 5 to fit against the wall panel of the thin-walled shell 6, the elastic element 16 is in a compressed state. The first movable seat 91 and the second movable seat 92 are connected to the carrier plate 1 by mutually cooperating strip mounting holes 10 and bolts 11. A vacuum generator is provided below the first machine base 171 and the second machine base 172. The third limiting block 4, which is attached to the wall panel to be processed of the thin-walled shell 6, has interconnected air grooves 13 on its surface facing the thin-walled shell 6. The air grooves 13 are connected to the corresponding vacuum generator through the pipe 14. A sealing groove 15 is formed at the edge of the surface of the thin-walled shell 6 and outside the air groove 13 of the aforementioned third limiting block 4.

[0016] The second machine 172 is provided with an air hole that connects the pipeline 14 to the vacuum generator.

[0017] The carrier plate 1 has an outward extension 101 at each end.

[0018] A cylinder 22 is provided on the lower surface of the substrate 20 and directly below each of the two extensions 101.

[0019] The upper end of the piston rod of the cylinder 22 passes through the mounting notch 102 on the base plate 20 and the extension 101 in sequence, and is fitted with a pressure block 23 that can press against the upper surface of the extension 101.

[0020] When using the above-mentioned thin-walled metal part clamping device, the coordinated setup of two machine tools enables a streamlined operation for loading and processing the thin-walled shell to be processed, improving processing efficiency. Two mutually perpendicular limiting blocks provide initial positioning for the thin-walled shell, and by pushing two more mutually perpendicular limiting blocks, the four wall plates of the thin-walled shell correspond one-to-one with the four limiting blocks, ensuring tight contact. This facilitates loading the thin-walled shell to be processed and unloading the processed thin-walled shell, while ensuring tight clamping of the thin-walled shell without displacement. This guarantees the accuracy of the cutter head in multi-angle processing of the rotating thin-walled shell's wall plates. Furthermore, keeping the two movable limiting blocks in their initial outward-opening state further facilitates loading and unloading of the thin-walled shell, and buffers the thrust applied to the movable seat, preventing damage to the thin-walled shell caused by excessive instantaneous force and ensuring processing quality. Furthermore, it can further ensure the surface fit between each wall panel of the thin-walled shell and the limiting block, and through vacuum adsorption, it ensures that the wall panel to be processed, which is prone to deformation due to its large area and thin thickness, fits tightly with the limiting block. This avoids vibration and other issues that may occur when the cutter head processes the wall panel of the rotating thin-walled shell at multiple angles, thus affecting the processing accuracy, producing tool marks, and improving the processing quality.

[0021] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A clamping device for thin-walled metal parts, comprising: A first machine base (171), a second machine base (172), and at least two carrier plates (1). A rotating seat (18) is mounted on one end of the upper surface of the second machine base (172). One end of a base plate (20) is mounted on the drive shaft of the rotating seat (18). The other end of the base plate (20) extends to the other end of the second machine base (172). A machining spindle (19) with a cutting head (21) is provided above the base plate (20). The carrier plates (1) are detachably connected to the first machine base (171) and the base plate (20) mounted on the second machine base (172). The upper surface of the carrier plate (1) is provided with a first limiting block (2) and a second limiting block (3) that are parallel to each other. A third limiting block (4) and a fourth limiting block (5) that are perpendicular to the first limiting block (2) are provided between the first limiting block (2) and the second limiting block (3), thereby forming a clamping area (7) for the thin-walled shell (6) to be embedded between the first limiting block (2), the second limiting block (3), the third limiting block (4), and the fourth limiting block (5). The first limiting block (2) and the third limiting block (4) fixedly installed on the carrier plate (1) are respectively attached to the outer surface of a wall panel of the thin-walled shell (6). The second limiting block (3) is installed on the carrier plate (1) through a first movable seat (91). A first cylinder (24) for driving the first movable seat (91) to move towards the thin-walled shell (6) is installed on the first machine base (171) and located outside the first movable seat (91). The fourth limiting block (5) is installed on the carrier plate (1) through a second movable seat (92). A second cylinder (25) for driving the first movable seat (92) to move towards the thin-walled shell (6) is installed on the first machine base (171) and located outside the first movable seat (92). The first movable seat (91) and the second movable seat (92) are each connected to the carrier plate (1) by an elastic element (16). When the first movable seat (91) and the second movable seat (92) are driven by the first cylinder (24) and the second cylinder (25) to move the second limiting block (3) and the fourth limiting block (5) to fit against the wall panel of the thin-walled shell (6), the elastic element (16) is in a compressed state. The first movable seat (91) and the second movable seat (92) are connected to the carrier plate (1) by mutually cooperating strip mounting holes (10) and bolts (11). A vacuum generator is provided below the first machine base (171) and the second machine base (172). The third limiting block (4) that is attached to the wall panel to be processed of the thin-walled shell (6) has interconnected air grooves (13) on its surface facing the thin-walled shell (6). The air grooves (13) are connected to the corresponding vacuum generator through the pipeline (14). The aforementioned third limiting block (4) has a sealing groove (15) at the edge of the thin-walled shell 6 and outside the air groove (13).

2. The thin-walled metal part clamping device according to claim 1, characterized in that: The second machine base (172) has an air hole that connects the pipeline (14) to the vacuum generator.

3. The thin-walled metal part clamping device according to claim 1, characterized in that: The carrier plate (1) has an outward extension (101) at each end.

4. The thin-walled metal part clamping device according to claim 3, characterized in that: A cylinder (22) is provided on the lower surface of the substrate (20) and directly below the two extensions (101).

5. The thin-walled metal part clamping device according to claim 3, characterized in that: The upper end of the piston rod of the cylinder (22) passes through the mounting notch (102) on the base plate (20) and the extension (101) in sequence, and is fitted with a pressure block (23) that can press against the upper surface of the extension (101).

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