Non-ferrous metal workpiece step drilling device and numerical control machine tool thereof

Abstract

The utility model relates to drilling equipment technical field especially relates to a kind of non-ferrous metal workpiece's step drilling device and its numerical control machine tool, step drilling device includes: driving element and combined tool, combined tool is installed in the driving end of driving element, combined tool includes: multiple tool bodies, multiple tool bodies are sequentially arranged, the transverse section shape of tool body is polygon, and the side length of multiple tool bodies transverse section polygon is sequentially along the stamping and drilling direction of the stamping and drilling non-ferrous metal workpiece;Wherein:,, it is the quantity of tool body.The utility model multiple step drilling due to the size of each stamping and drilling is smaller, the stamping force required by each stamping and drilling is smaller, can avoid the material around polygonal through-hole formed by stamping and drilling due to larger stamping force to collapse, deformation, to improve non-ferrous metal workpiece stamping and drilling quality.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, and in particular to a stepped drilling device for non-ferrous metal workpieces and its CNC machine tool. Background Technology

[0002] Non-ferrous metal workpieces refer to workpieces processed from non-ferrous metals (such as aluminum and copper). These workpieces are widely used in aerospace, electronics, construction, transportation, machinery manufacturing, new energy, and many other fields due to their excellent electrical and thermal conductivity, corrosion resistance, ductility, and lightweight properties. To install or allow nuts to pass through, non-ferrous metal workpieces require polygonal through holes.

[0003] Currently, the drilling method for non-ferrous metal workpieces is to use a drilling die to punch and drill holes in one go. However, due to the lightweight nature of non-ferrous metal workpieces, direct punching and drilling in one go will cause the material around the polygonal through hole to collapse and deform, which will affect the quality of punching and drilling of non-ferrous metal workpieces. Utility Model Content

[0004] To address the shortcomings of existing production technologies, the applicant provides a stepped drilling device for non-ferrous metal workpieces and its CNC machine tool. By improving the drilling method for non-ferrous metal workpieces, stepped drilling of non-ferrous metal workpieces is achieved, avoiding material collapse and deformation around polygonal through holes, thereby improving the stamping and drilling quality of non-ferrous metal workpieces.

[0005] The technical solution adopted in this utility model is as follows: A stepped drilling device for non-ferrous metal workpieces includes: a driving component and a combined cutting tool. The combined cutting tool is mounted on the driving end of the driving component. The combined cutting tool includes: multiple cutting tool bodies, which are sequentially arranged along the punching and drilling direction of the non-ferrous metal workpiece to be punched and drilled. The transverse cross-sectional shape of each cutting tool body is polygonal, and the side lengths of the polygonal cross-sections of the multiple cutting tool bodies are sequentially [lengths missing] along the punching and drilling direction of the non-ferrous metal workpiece to be punched and drilled. ;in: , , The number of the tool bodies.

[0006] Therefore, by setting multiple tool bodies to adjust the punching and drilling method of non-ferrous workpieces to be punched and drilled into multi-stage drilling, compared with the existing one-time punching and drilling method, this method has a simpler structure and is easier to operate. Since the size of each punching and drilling hole is smaller, the punching force required for each punching and drilling hole is smaller, which can avoid the material around the polygonal through hole formed by the punching and drilling hole collapsing and deforming due to large punching force, thereby improving the punching and drilling quality of non-ferrous metal workpieces. In addition, by limiting the difference in the side length of two adjacent tool bodies, the punching and drilling amount of each punching and drilling hole is limited, further avoiding the material around the polygonal through hole formed by the punching and drilling hole collapsing and deforming due to large punching force, thereby further improving the punching and drilling quality of non-ferrous metal workpieces.

[0007] As a further improvement to the above technical solution: the combined tool further includes a support rod, the tool body passing through the support rod and connected to the support rod, and one end of the support rod being connected to the driving end of the driving component.

[0008] As a further improvement to the above technical solution, a chip groove is formed between two adjacent tool bodies. Thus, the chip groove can serve as a storage area for chips generated during each punching and drilling operation, temporarily storing the chips and ensuring that the chips generated during punching and drilling do not splatter, facilitating chip cleaning after the punching and drilling process is completed.

[0009] As a further improvement to the above technical solution: the thickness of the punched hole in the non-ferrous metal workpiece to be punched and drilled is... The thickness of the tool body is The thickness of the chip groove is ;in: , Therefore, through The design method ensures that each punching and drilling operation is successful, preventing instances of insufficient hole thickness. The design aims to ensure that the next tool body contacts the non-ferrous metal workpiece before the previous tool body has completely detached from the workpiece, thereby ensuring that each stamping hole will not deviate, and further improving the stamping hole quality of the non-ferrous metal workpiece.

[0010] As a further improvement to the above technical solution, the combined cutting tool further includes a guide portion, which is installed at the other end of the support rod. Thus, during the stamping and drilling process, on the one hand, the guide portion acts as a drilling tool, and with the cooperation of the drive portion, first drills a cylindrical hole at the required drilling position on the non-ferrous metal workpiece; on the other hand, the guide portion can guide the entire stepped drilling device to the required stamping and drilling position on the non-ferrous metal workpiece, ensuring that the hole stamped and drilled by the entire stepped drilling device will not deviate.

[0011] As a further improvement to the above technical solution: the thickness of the guide portion is ;in: Therefore, through The design ensures that the entire guide section is fully inserted into the non-ferrous metal workpiece, facilitating the initial drilling of the cylindrical hole and subsequent guiding operations during the stamping and drilling process.

[0012] As a further improvement to the above technical solution: the guide part includes: a first guide block and a second guide block, the first guide block being connected to the other end of the support rod, and the second guide block being connected to the first guide block.

[0013] As a further improvement to the above technical solution: the first guide block has a circular cross-sectional shape, the second guide block has a conical cross-sectional shape, and the diameter of the second guide block gradually decreases along the punching and drilling direction of the non-ferrous metal workpiece. Therefore, when punching and drilling the non-ferrous metal workpiece, the conical second guide block first reaches the required punching and drilling position of the non-ferrous metal workpiece, gradually guiding the entire stepped punching and drilling device to that position. The circular first guide block reaches the required punching and drilling position of the non-ferrous metal workpiece. The first guide block supports the non-ferrous metal workpiece, ensuring that the entire stepped punching and drilling device does not shift during subsequent punching and drilling, thereby further improving the punching and drilling quality of the non-ferrous metal workpiece.

[0014] As a further improvement to the above technical solution: the radius of the first guiding block is Wherein: the diameter of the first guide block is With the The diameters of the inscribed circles of the aforementioned tool bodies are equal. Therefore, through... This design method can limit the size of the first punching hole to ensure that the size of the first punching hole is not too large. This can prevent the material around the polygonal through hole formed by the punching hole from collapsing and deforming due to large punching pressure, thereby improving the punching hole quality of non-ferrous metal workpieces.

[0015] A CNC machine tool includes: a stepped drilling device for the non-ferrous metal workpiece.

[0016] The beneficial effects of this utility model are as follows: This invention adjusts the punching and drilling method of non-ferrous workpieces to multiple-stage drilling by setting multiple tool bodies. Compared with the existing one-time punching and drilling method, this method has a simpler structure and is easier to operate. Because the size of each punching and drilling hole is smaller, the punching force required for each punching and drilling is smaller, which can avoid the material around the polygonal through hole formed by the punching and drilling due to large punching force, thus improving the punching and drilling quality of non-ferrous metal workpieces. In addition, by limiting the difference in the side length of two adjacent tool bodies, the punching and drilling amount of each punching and drilling is limited, further avoiding the material around the polygonal through hole formed by the punching and drilling due to large punching force, thus further improving the punching and drilling quality of non-ferrous metal workpieces.

[0017] This utility model also has the following advantages: 1. The chip collection groove of this utility model can be used as a placement groove for chips from each punching and drilling operation, so as to temporarily store the chips in the chip collection groove, ensuring that the chips generated by punching and drilling will not splash, so as to facilitate the chip cleaning operation after punching and drilling is completed.

[0018] 2. This utility model passes through The design method ensures that each punching and drilling operation is successful, preventing instances of insufficient hole thickness. The design aims to ensure that the next tool body contacts the non-ferrous metal workpiece before the previous tool body has completely detached from the workpiece, thereby ensuring that each stamping hole will not deviate, and further improving the stamping hole quality of the non-ferrous metal workpiece.

[0019] 3. In the process of punching and drilling, the present invention, on the one hand, the guide part acts as a drilling tool and, with the cooperation of the drive part, first drills a cylindrical hole at the position where the non-ferrous metal workpiece needs to be drilled. On the other hand, the guide part can guide the entire stepped drilling device to the position where the non-ferrous metal workpiece needs to be punched and drilled, so as to ensure that the hole punched and drilled by the entire stepped drilling device will not be deviated.

[0020] 4. This utility model passes through This design method can limit the size of the first punching hole to ensure that the size of the first punching hole is not too large. This can prevent the material around the polygonal through hole formed by the punching hole from collapsing and deforming due to large punching pressure, thereby improving the punching hole quality of non-ferrous metal workpieces. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the stepped drilling device for non-ferrous metal workpieces according to the present invention. Figure 2 This is a schematic diagram of the combined cutting tool of this utility model; Figure 3 This is a front view of the combined cutting tool of this utility model; Figure 4 This is a bottom view of the combined cutting tool of this utility model; Figure 5 This is a rendering of the punching and drilling effect of the non-ferrous metal workpiece without pre-drilled cylindrical holes according to the present invention. Figure 6 This is a rendering of the effect of punching and drilling a cylindrical hole in a non-ferrous metal workpiece according to this utility model.

[0022] Among them: 1. Driving components; 2. Combination cutting tools; 3. Tool body; 4. Support rod; 5. Chip groove; 6. Guiding section; 601, First boot block; 602, Second boot block. Detailed Implementation

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0024] like Figures 1 to 6 As shown, a stepped drilling device for non-ferrous metal workpieces includes: a driving component 1 and a combined cutting tool 2. The combined cutting tool 2 is installed at the driving end of the driving component 1. The combined cutting tool 2 includes: multiple cutting tool bodies 3, which are arranged sequentially along the punching and drilling direction of the non-ferrous metal workpiece to be punched and drilled. The transverse cross-sectional shape of the cutting tool body 3 is polygonal, and the side lengths of the polygonal cross-sections of the multiple cutting tool bodies 3 are sequentially [lengths missing] along the punching and drilling direction of the non-ferrous metal workpiece to be punched and drilled. ;in: , , The number of tool bodies 3. Therefore, by setting multiple tool bodies 3, the punching and drilling method for non-ferrous workpieces is adjusted to multi-stage drilling. Compared to the existing one-time punching and drilling method, this method has a simpler structure and is easier to operate. Because the size of each punching and drilling hole is smaller, the punching force required for each punching and drilling is smaller, which can avoid the material around the polygonal through-hole formed by the punching and drilling due to large punching force, thus improving the punching and drilling quality of non-ferrous metal workpieces. Furthermore, by limiting the difference in side length between two adjacent tool bodies 3, the punching and drilling amount for each punching and drilling is limited, further preventing the material around the polygonal through-hole formed by the punching and drilling due to large punching force, thus further improving the punching and drilling quality of non-ferrous metal workpieces.

[0025] In other words, in the existing one-time stamping and drilling process, the size of the stamping and drilling material is relatively large, and the required stamping and drilling force is also relatively large. As a result, under the action of a large stamping and drilling force, the material around the polygonal through hole formed by the stamping and drilling is prone to collapse and deformation, which will reduce the stamping and drilling quality of non-ferrous metal workpieces. This application converts one-time stamping and drilling into multi-stage stamping and drilling, by reducing the size of the stamping and drilling material and reducing the required stamping and drilling force, to ensure that the material around the polygonal through hole formed by the stamping and drilling will not collapse or deform, thereby improving the stamping and drilling quality of non-ferrous metal workpieces.

[0026] It should be noted that during the entire punching and drilling process, each time punching and drilling occurs, the previous tool body 3 not only serves as the executor guiding the operation of the next tool body 3, but also the tool body 3 is always in contact with the inner wall of the hole to be drilled.

[0027] For example: the drive unit is the main spindle.

[0028] In this embodiment, the combined cutting tool 2 further includes a support rod 4, the cutting tool body 3 passes through the support rod 4 and is connected to the support rod 4, and one end of the support rod 4 is connected to the driving end of the driving member 1.

[0029] In this embodiment, a chip groove 5 is formed between two adjacent tool bodies 3. Thus, the chip groove 5 can serve as a placement groove for the chips produced during each punching and drilling process, temporarily storing the chips within the chip groove 5 to ensure that the chips generated during punching and drilling do not splash, facilitating the chip cleaning operation after punching and drilling is completed.

[0030] In this embodiment, the thickness of the punched hole in the non-ferrous metal workpiece to be punched and drilled is... The thickness of the tool body 3 is The thickness of the chip groove 5 is ;in: , Therefore, through The design method ensures that each punching and drilling operation is successful, preventing instances of insufficient hole thickness. The purpose of this design is to ensure that the next tool body 3 contacts the non-ferrous metal workpiece before the previous tool body 3 has completely detached from the non-ferrous metal workpiece, thereby ensuring that each stamping hole will not deviate, and further improving the stamping hole quality of the non-ferrous metal workpiece.

[0031] In this embodiment, the combined cutting tool 2 further includes a guide portion 6, which is mounted on the other end of the support rod 4. The guide portion 6 includes a first guide block 601 and a second guide block 602. The first guide block 601 is connected to the other end of the support rod 4, and the second guide block 602 is connected to the first guide block 601. The transverse cross-sectional shape of the first guide block 601 is circular, and the longitudinal cross-sectional shape of the second guide block 602 is conical. The diameter of the second guide block 602 gradually decreases along the punching and drilling direction of the non-ferrous metal workpiece to be punched and drilled. The thickness of the guide portion 6 is... ;in: The radius of the first guiding block 601 is Wherein: The diameter of the first guide block 601 is With the The diameters of the inscribed circles of each tool body 3 are equal. Therefore, during the stamping and drilling process, on the one hand, the guide part 6 acts as a drilling tool, and with the cooperation of the drive part, first drills a cylindrical hole at the required drilling position on the non-ferrous metal workpiece; on the other hand, the guide part 6 can guide the entire stepped drilling device to the required stamping and drilling position on the non-ferrous metal workpiece, ensuring that the hole stamped and drilled by the entire stepped drilling device will not deviate; through The design ensures that the entire guide 6 is fully inserted into the non-ferrous metal workpiece, facilitating the initial drilling of the cylindrical hole and subsequent guiding operations in the stamping and drilling process. During stamping and drilling of the non-ferrous metal workpiece, the conical second guide block 602 first reaches the required drilling position, gradually guiding the entire stepped stamping and drilling device to that position. The circular first guide block 601 then reaches the required drilling position, supporting the workpiece to prevent displacement during subsequent drilling, further improving the quality of the stamping and drilling of the non-ferrous metal workpiece. The design method can limit the size of the first punching hole to ensure that the size of the first punching hole is not too large. This can prevent the material around the polygonal through hole formed by the punching hole from collapsing and deforming due to the large punching force, thereby improving the punching hole quality of non-ferrous metal workpieces.

[0032] It should be noted that the guide section 6 has two functions; Firstly, if the non-ferrous metal workpiece to be punched and drilled has not been pre-drilled with a cylindrical hole, the guide part 6 first functions as drilling the cylindrical hole (that is, with the cooperation of the drive part, the guide part 6 moves closer to the non-ferrous metal workpiece while rotating along the transverse cross-section direction), and then functions as a guide (that is, with the cooperation of the drive part, the guide part 6 only moves closer to the non-ferrous metal workpiece). Secondly, if the non-ferrous metal workpiece to be punched and drilled has already had a cylindrical hole drilled in advance, then the guide part 6 only plays a guiding role (that is, with the cooperation of the drive part, the guide part 6 only moves closer to the non-ferrous metal workpiece).

[0033] It should be noted that: 1. The guide section 6 only performs guiding operations during the first punching drilling process; Second, in the subsequent n-1 punching drilling process, the previous tool body 3 serves as the executor for guiding the operation of the next tool body 3 (that is, the nth tool body 3 serves as the executor for guiding the operation of the n-1th tool body 3).

[0034] The stepped punching and drilling process for non-ferrous metal workpieces of this utility model is as follows (without pre-drilling cylindrical holes, taking five tool bodies 3 as an example, the five tool bodies 3 are sequentially named along the punching and drilling direction of the non-ferrous metal workpiece to be punched and drilled: first tool body 3, second tool body 3, third tool body 3, fourth tool body 3, and fifth tool body 3, as follows). Figure 6 (as shown) First (S1), the position of the non-ferrous metal workpiece to be punched and drilled is moved directly below the second guide block 602; Next (S2), the drive unit 1 is activated so that the drive unit 1 moves and rotates towards the side closer to the non-ferrous metal to rotate and drill through the guide part 6 to obtain a cylindrical hole. Then (S3), the control drive 1 is moved toward the side closer to the non-ferrous metal to perform the first punching drill through the fifth tool body 3; Finally (S4), S3 is repeated four times so that the first tool body 3 is inserted into the non-ferrous metal workpiece. After four stepped punching and drilling operations, the stepped punching and drilling operation of the non-ferrous metal workpiece can be realized.

[0035] The stepped punching and drilling process for non-ferrous metal workpieces of this utility model is as follows (cylindrical holes have been pre-drilled; taking five tool bodies 3 as an example, the five tool bodies 3 are sequentially named along the punching and drilling direction of the non-ferrous metal workpiece to be punched and drilled: first tool body 3, second tool body 3, third tool body 3, fourth tool body 3, and fifth tool body 3, as follows). Figure 5 (as shown) First (S1), the position of the non-ferrous metal workpiece to be punched and drilled is moved directly below the second guide block 602; Next (S2), the control drive 1 moves toward the side closer to the non-ferrous metal to perform the first punching drill through the fifth tool body 3; Finally (S3), S2 is repeated four times so that the first tool body 3 is inserted into the non-ferrous metal workpiece. After four stepped punching and drilling operations, the stepped punching and drilling operation of the non-ferrous metal workpiece can be realized.

[0036] A CNC machine tool includes: a stepped drilling device for non-ferrous metal workpieces.

[0037] In summary, this utility model adjusts the punching and drilling method of non-ferrous workpieces to multiple-stage drilling by setting multiple tool bodies 3. Compared with the existing one-time punching and drilling method, this method has a simpler structure and is easier to operate. Since the size of each punching and drilling hole is smaller, the punching force required for each punching and drilling hole is smaller, which can avoid the material around the polygonal through hole formed by the punching and drilling hole from collapsing and deforming due to large punching force, thereby improving the punching and drilling quality of non-ferrous metal workpieces. In addition, by limiting the difference in the side length of two adjacent tool bodies 3, the punching and drilling amount of each punching and drilling hole is limited, further avoiding the material around the polygonal through hole formed by the punching and drilling hole from collapsing and deforming due to large punching force, thereby further improving the punching and drilling quality of non-ferrous metal workpieces.

[0038] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A stepped drilling device for non-ferrous metal workpieces, characterized in that, include: Drive unit (1), and A combination tool (2), which is mounted on the driving end of the driving member (1), comprises: Multiple tool bodies (3) are arranged sequentially along the punching and drilling direction of the non-ferrous metal workpiece to be punched and drilled. The transverse cross-sectional shape of each tool body (3) is a polygon, and the side lengths of the polygonal cross-sections of the multiple tool bodies (3) are sequentially arranged along the punching and drilling direction of the non-ferrous metal workpiece to be punched and drilled. ; in: , , The number of the cutter bodies (3).

2. The stepped drilling device for non-ferrous metal workpieces as described in claim 1, characterized in that: The combined cutting tool (2) also includes: The support rod (4) is through which the tool body (3) passes and is connected to the support rod (4). One end of the support rod (4) is connected to the driving end of the driving member (1).

3. The stepped drilling device for non-ferrous metal workpieces as described in claim 1, characterized in that: Chip grooves (5) are formed between two adjacent tool bodies (3).

4. The stepped drilling device for non-ferrous metal workpieces as described in claim 3, characterized in that: The thickness of the punched hole in the non-ferrous metal workpiece to be punched and drilled is The thickness of the tool body (3) is The thickness of the chip groove (5) is ; in: , .

5. The stepped drilling device for non-ferrous metal workpieces as described in claim 2, characterized in that: The combined cutting tool (2) also includes: A guide (6) is installed at the other end of the support rod (4).

6. The stepped drilling device for non-ferrous metal workpieces as described in claim 5, characterized in that: The thickness of the guide portion (6) is ; in: .

7. The stepped drilling device for non-ferrous metal workpieces as described in claim 6, characterized in that: The guide section (6) includes: A first guide block (601) and a second guide block (602), wherein the first guide block (601) is connected to the other end of the support rod (4), and the second guide block (602) is connected to the first guide block (601).

8. The stepped drilling device for non-ferrous metal workpieces as described in claim 7, characterized in that: The first guide block (601) has a circular cross-sectional shape, the second guide block (602) has a conical cross-sectional shape, and the diameter of the second guide block (602) gradually decreases along the punching and drilling direction of the non-ferrous metal workpiece to be punched and drilled.

9. The stepped drilling device for non-ferrous metal workpieces as described in claim 7, characterized in that: The diameter of the first guide block (601) is ; Wherein: the diameter of the first guide block (601) is With the The diameters of the inscribed circles of the tool bodies (3) are equal.

10. A CNC machine tool, characterized in that: include: The step drilling apparatus for non-ferrous metal workpieces according to any one of claims 1-9.

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