Surface treatment device for electronic equipment

Abstract

The invention discloses a surface treatment device for electronic equipment, which comprises a cutter mounted on a clamping cutter handle, the cutter further comprises a cutting edge arranged at the lower end of a square cylinder, the lower surface of the clamping cutter handle is provided with a square mounting hole, four inner walls of the square mounting hole are respectively provided with a containing groove, and the containing grooves are communicated with the square mounting hole. Each containing groove is internally provided with a pressing block and at least four second screws corresponding to the pressing blocks, the other end of each second screw is provided with a flange part, and an elastic piece in an extrusion state is arranged between the flange part and the side surface of the clamping cutter handle. While the machining yield and efficiency of the tool are improved, stable face clamping can be conducted on the tool in the machining process, the stress balance of the tool is guaranteed, gapless parallel attachment between the tool and all the pressing blocks can be kept all the time, the bad conditions that white points, line marks, male and female faces and the like are formed on the machined surface are effectively avoided, and the machining quality of the tool is improved. And the surface yield of one-time machining is improved, and the cutter is convenient to replace.

Description

Technical Field

[0001] The invention relates to a surface treatment device for electronic equipment, belonging to the technical field of CNC processing. Background Art

[0002] CNC is the abbreviation of computer digital control, also known as numerical control. It is the enabling technology and the most basic equipment for the development of emerging high-tech industries and cutting-edge industries. It uses digital information to control mechanical movement and working processes, and has the characteristics of high precision, high efficiency, and flexible automation.

[0003] In the existing technology, in order to facilitate the clamping of the tool on the lathe during CNC machining, round-shank tools are usually used. However, it is difficult to calibrate the tool during grinding, and the yield and efficiency of the tool processing itself are low. In addition, the force on the tool is uneven during the milling process, and it is easy to form white spots, line marks, and negative and positive surfaces due to tool shaking during the machining process, which reduces the surface yield of a single machining and is inconvenient to replace the tool. Summary of the Invention

[0004] The purpose of the present invention is to provide a surface treatment device for electronic equipment. While improving the processing yield and efficiency of the tool itself, the surface treatment device for electronic equipment can stably clamp the tool during the processing process and ensure the balance of force on the tool. It can also always maintain a seamless parallel fit between the tool and each pressing block, effectively avoiding the formation of white spots, line marks, yin and yang surfaces and other undesirable conditions on the processed surface, thereby improving the surface yield of one-time processing and facilitating the replacement of the tool.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a surface treatment device for electronic equipment, comprising: a CNC spindle, a clamping handle connected to the CNC spindle at the upper end, and a tool mounted on the clamping handle, the tool further comprising: a vertically extending square column and a blade arranged at the lower end of the square column, a square mounting hole is provided on the lower surface of the clamping handle, the upper part of the square column is embedded in the square mounting hole, and a receiving groove is provided on each of the four inner walls of the square mounting hole, a pressure block is provided in each of the receiving grooves, and the surface of each pressure block opposite to the side of the square column is in contact with at least The end faces of two horizontally arranged first screws are pressed into contact, so that the surface of the other side of the pressure block is pressed into contact with the side surface of the square cylinder. Each of the first screws passes through a threaded through hole opened on the side surface of the clamping handle and is threadedly connected to the inner wall of the threaded through hole. At least four second screws corresponding to the pressure block are also provided. One end of each of the second screws extending horizontally passes through a through hole opened on the side surface of the clamping handle and is connected to the corresponding pressure block. The other end of the second screw has a radially outward flange portion, and an elastic member in an extruded state is provided between the flange portion and the side surface of the clamping handle.

[0006] The further improved scheme in the above technical scheme is as follows: 1. In the above solution, the elastic member is a butterfly spring mounted on the outside of the second screw.

[0007] 2. In the above solution, the second screw is embedded in the pressing block and connected to the pressing block through threads.

[0008] 3. In the above solution, each of the pressing blocks is in pressing contact with the end faces of one end of two first screws spaced apart in the vertical direction.

[0009] 4. In the above solution, the second screw is arranged between two first screws that are spaced apart in the vertical direction.

[0010] 5. In the above solution, the pressing block is a vertically extending strip-shaped pressing block.

[0011] 6. In the above solution, the threaded through hole and the through hole extending in the horizontal direction are both connected to the accommodating groove.

[0012] 7. In the above solution, the blade is a PCD blade.

[0013] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: The surface treatment device of the electronic equipment of the present invention, its tool further comprises: a vertically extending square column and a blade arranged at the lower end of the square column, the lower surface of the clamping handle is provided with a square mounting hole, the upper part of the square column is embedded in the square mounting hole, the four inner walls of the square mounting hole are respectively provided with a receiving groove, each receiving groove is provided with a pressing block, the surface of each pressing block opposite to the side of the square column is pressed and contacted with the end faces of at least two horizontally arranged first screws, so that the surface of the other side of the pressing block is pressed and contacted with the side surface of the square column, each first screw correspondingly passes through a threaded through hole provided on the side surface of the clamping handle and is threadedly connected to the inner wall of the threaded through hole, and at least four second screws corresponding to the pressing block are also provided, one end of each horizontally extending second screw passes through the end The through hole on the side surface of the clamping tool handle is connected to the corresponding pressure block, and the other end of the second screw is provided with a radially outward flange portion, and an elastic part in an extruded state is provided between the flange portion and the side surface of the clamping tool handle. While improving the processing yield and efficiency of the tool itself, the tool can be stably clamped on the surface during the milling of the workpiece by the blade and the force balance of the tool can be ensured. The local clamping gap caused by the thrust attenuation of the first screw during long-term use can also be compensated through adaptive adjustment, and the square column of the tool and each pressure block are always kept in parallel without gaps, thereby effectively avoiding the formation of white spots, line marks, yin and yang surfaces and other defects on the processing surface due to the vibration of the tool during the processing, thereby improving the surface yield of one-time processing and facilitating the replacement of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attachment Figure 1 A schematic structural diagram of a surface treatment device for an electronic device according to the present invention; Attachment Figure 2 A schematic diagram of a partial structure of a surface treatment device for an electronic device according to the present invention; Attachment Figure 3 The present invention is attached Figure 2 Schematic diagram of the cross section along AA; Attachment Figure 4 The present invention is attached Figure 3 A magnified schematic diagram of point B in the middle; Attachment Figure 5 The figure is a schematic structural diagram of the clamping tool handle of the surface treatment device for electronic equipment of the present invention.

[0015] In the above figures: 100, workpiece to be processed; 1, CNC spindle; 2, clamping handle; 3, tool; 4, square cylinder; 5, blade; 6, square mounting hole; 7, accommodating groove; 8, pressure block; 91, first screw; 92, threaded through hole; 10, second screw; 11, through hole; 12, flange; 13, elastic member. DETAILED DESCRIPTION

[0016] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0017] Example 1: A surface treatment device for an electronic device, comprising: a CNC spindle 1, a clamping handle 2 connected to the CNC spindle 1 at its upper end, and a tool 3 mounted on the clamping handle 2, wherein the tool 3 further comprises: a vertically extending square column 4 and a blade 5 arranged at the lower end of the square column 4, a square mounting hole 6 is provided on the lower surface of the clamping handle 2, the upper portion of the square column 4 is embedded in the square mounting hole 6, and a receiving groove 7 is provided on each of the four inner walls of the square mounting hole 6, each of the receiving grooves 7 is provided with a pressing block 8, and the surface of each pressing block 8 opposite to the side of the square column 4 is fixed to at least two horizontally arranged first screws 9 1 is pressed and contacted with the end face of the pressure block 8, so that the surface of the other side of the pressure block 8 is pressed and contacted with the side surface of the square cylinder 4, each of the first screws 91 correspondingly passes through the threaded through hole 92 opened on the side surface of the clamping handle 2 and is threadedly connected to the inner wall of the threaded through hole 92, and at least 4 second screws 10 corresponding to the pressure block 8 are provided, and one end of each of the second screws 10 extending horizontally passes through the through hole 11 opened on the side surface of the clamping handle 2 and is connected to the corresponding pressure block 8, and the other end of the second screw 10 has a radially outward flange portion 12, and an elastic member 13 in an extruded state is provided between the flange portion 12 and the side surface of the clamping handle 2.

[0018] The elastic member 13 is a butterfly spring sleeved on the outside of the second screw 10 .

[0019] The second screw 10 is embedded in the pressing block 8 and connected to the pressing block 8 via threads.

[0020] Each of the pressing blocks 8 is in pressing contact with the end surfaces of one end of two first screws 91 that are spaced apart in the vertical direction.

[0021] The second screw 10 is disposed between two first screws 91 that are spaced apart in the vertical direction.

[0022] The pressing block 8 is a vertically extending strip-shaped pressing block.

[0023] Example 2: A surface treatment device for an electronic device, comprising: a CNC spindle 1, a clamping handle 2 connected to the CNC spindle 1 at its upper end, and a tool 3 mounted on the clamping handle 2, wherein the tool 3 further comprises: a vertically extending square column 4 and a blade 5 arranged at the lower end of the square column 4, a square mounting hole 6 is provided on the lower surface of the clamping handle 2, the upper portion of the square column 4 is embedded in the square mounting hole 6, and a receiving groove 7 is provided on each of the four inner walls of the square mounting hole 6, and a pressing block 8 is provided in each of the receiving grooves 7, and the surface of each pressing block 8 opposite to the side of the square column 4 is fixed to at least two horizontally arranged first screws 9 1 is pressed and contacted with the end face of the pressure block 8, so that the surface of the other side of the pressure block 8 is pressed and contacted with the side surface of the square cylinder 4, each of the first screws 91 correspondingly passes through the threaded through hole 92 opened on the side surface of the clamping handle 2 and is threadedly connected to the inner wall of the threaded through hole 92, and at least 4 second screws 10 corresponding to the pressure block 8 are provided, and one end of each of the second screws 10 extending horizontally passes through the through hole 11 opened on the side surface of the clamping handle 2 and is connected to the corresponding pressure block 8, and the other end of the second screw 10 has a radially outward flange portion 12, and an elastic member 13 in an extruded state is provided between the flange portion 12 and the side surface of the clamping handle 2.

[0024] The elastic member 13 is a butterfly spring sleeved on the outside of the second screw 10 .

[0025] Each of the pressing blocks 8 is in pressing contact with the end faces of one end of two first screws 91 spaced apart in the vertical direction.

[0026] The threaded through hole 92 and the through hole 11 extending in the horizontal direction are both communicated with the accommodating groove 7 .

[0027] The blade 5 is a PCD blade.

[0028] When installing or replacing a tool, first loosen the first screw to form a gap between its end face and the pressing block, so that no tight pressure is applied to the pressing block. This reduces the pressure exerted by the pressing block on the square cylinder of the tool, making it easier to remove the old tool and install a new one. During this process, the pressing blocks will not be displaced or deflected under the action of the second bolt and the butterfly spring, so that the newly installed tool can be clamped later. After the new tool is inserted into the square mounting hole, the first screw is tightened, and the tool is stably clamped on the surface through multiple pressure blocks to ensure the balance of force on the tool. The local clamping gap caused by the thrust attenuation of the first screw during long-term use can also be compensated through adaptive adjustment, and the square column of the tool and each pressure block are always kept in parallel fit without gaps, thereby effectively avoiding the formation of white spots, line marks, yin and yang surfaces and other defects on the processing surface due to tool shaking during processing, thereby improving the surface yield of one-time processing and facilitating the replacement of tools.

[0029] This project is an electronic product appearance part. Since the product surface is required to not have knife marks and other defects, the best choice is the planer process; Because the project also requires subsequent CNC machining of the outer shape, round-shank tools are used to facilitate CNC clamping of the tool holder. However, tool manufacturers have difficulty making corrections when grinding PCD tools, and the tool yield has always been unsatisfactory. Production has been temporarily suspended several times due to the low tool yield. Against this background, a special square-shank PCD planer and matching tool holder were developed.

[0030] When the surface treatment device of the above-mentioned electronic equipment is used, it can improve the processing yield and efficiency of the tool itself, and at the same time, it can stably clamp the tool and ensure the balance of force on the tool during the milling process of the blade on the workpiece. It can also compensate for the local clamping gap caused by the thrust attenuation of the first screw during long-term use through adaptive adjustment, and always maintain a gap-free parallel fit between the square column of the tool and each pressure block, thereby effectively avoiding the formation of white spots, line marks, yin and yang surfaces and other defects on the processing surface due to tool shaking during processing, thereby improving the surface yield of one-time processing and facilitating the replacement of the tool.

[0031] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A surface treatment device for an electronic device, comprising: A CNC spindle (1), a clamping handle (2) connected to the CNC spindle (1) at its upper end, and a tool (3) mounted on the clamping handle (2), characterized in that the tool (3) further comprises a vertically extending square column (4) and a blade (5) arranged at the lower end of the square column (4), a square mounting hole (6) is provided on the lower surface of the clamping handle (2), the upper part of the square column (4) is embedded in the square mounting hole (6), and a receiving groove (7) is provided on each of the four inner walls of the square mounting hole (6), and a pressure block (8) is provided in each of the receiving grooves (7), and the surface of each pressure block (8) opposite to the side of the square column (4) abuts against the end faces of at least two horizontally arranged first screws (91). The pressure block (8) is pressed into contact with the side surface of the square cylinder (4), so that the surface of the other side of the pressure block (8) is pressed into contact with the side surface of the square cylinder (4), each of the first screws (91) passes through the threaded through hole (92) opened on the side surface of the clamping handle (2) and is threadedly connected to the inner wall of the threaded through hole (92), and at least four second screws (10) corresponding to the pressure block (8) are provided. One end of each of the second screws (10) extending horizontally passes through the through hole (11) opened on the side surface of the clamping handle (2) and is connected to the corresponding pressure block (8), and the other end of the second screw (10) has a radially outward flange portion (12), and an elastic member (13) in an extruded state is provided between the flange portion (12) and the side surface of the clamping handle (2).

2. The surface treatment device for electronic equipment according to claim 1, wherein: The elastic member (13) is a butterfly spring sleeved on the outside of the second screw (10).

3. The surface treatment device for electronic equipment according to claim 1, wherein: The second screw (10) is embedded in the pressing block (8) and connected to the pressing block (8) via a thread.

4. The surface treatment device for an electronic device according to claim 1, wherein: Each of the pressing blocks (8) is in pressing contact with the end faces of one end of two first screws (91) spaced apart in the vertical direction.

5. The surface treatment device for electronic equipment according to claim 4, wherein: The second screw (10) is arranged between two first screws (91) that are spaced apart in the vertical direction.

6. The surface treatment device for electronic equipment according to claim 1, wherein: The pressing block (8) is a vertically extending strip-shaped pressing block.

7. The surface treatment device for electronic equipment according to claim 1, wherein: The threaded through hole (92) and the through hole (11) extending in the horizontal direction are both connected to the accommodating groove (7).

8. The surface treatment device for electronic equipment according to claim 1, wherein: The blade (5) is a PCD blade.

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