A forming, drilling and chamfering tool for processing a copper charging plug of a new energy vehicle

Abstract

The utility model discloses a kind of forming drilling chamfering cutters of processing new energy automobile copper charging plug, it is related to drilling chamfering cutter technical field.The utility model includes two groups of tool shank, the top end of one group of tool shank and the bottom end of another group of tool shank are all fixed with wedge block, the bottom of one group of wedge block is equipped with slot, the top of another group of wedge block is equipped with plug, fastening screw hole is set in the outer surface of plug, the utility model is equipped with clamping cylinder, wedge block, wedge slot anti -unthreaded bolt and the setting of anti -unthreaded bolt hole, when chuck is fixed when clamping drill bit cutter in actual use, staff can insert clamping cylinder into chuck, make chuck clamping force act on clamping cylinder rather than blade belt, to form reliable protection to blade belt, completely avoid the deformation, damage etc. of blade belt due to chuck directly clamping blade belt, guarantee drilling accuracy and operating efficiency, extend the service life of drill bit.

Description

Technical Field

[0001] This utility model relates to the field of drilling and chamfering tools, specifically a forming drilling and chamfering tool for processing copper charging plugs for new energy vehicles. Background Technology

[0002] With increasing attention to environmental protection and sustainable energy, electric vehicles have gained widespread attention and development as a solution to replace traditional fuel vehicles. Electric vehicles require regular charging to maintain their operation, making the construction of charging infrastructure a key factor in their development. The charging plug is the interface connecting the electric vehicle and the charging equipment, and it needs to meet requirements such as high power transmission, safety, reliability, and durability. Copper alloys have good electrical conductivity, thermal conductivity, and mechanical properties, making them an ideal material for manufacturing charging plugs. Currently, the manufacturing process for charging plugs involves machining copper alloy bars into a semi-finished structure in one go using a CNC lathe, then machining other complex three-dimensional structures into a finished structure using a CNC machining center; finally, surface electroplating is applied to obtain the finished product. While charging plugs may have similar shapes, they exhibit a variety of structural features, and traditional structural drills and chamfering tools are generally used for machining these structures.

[0003] Existing double-ended drill bits all adopt a one-piece molding design, with cutting edges at both ends for drilling operations. In actual use, when the double-ended drill bit needs to be clamped and fixed by a chuck, due to the limitations of its one-piece structure, one end of the drill bit must be inserted into the chuck for fixation. However, during operation, due to insufficient experience or negligence, operators often find it difficult to accurately control the insertion depth, easily resulting in the drill bit being inserted too shallowly into the chuck. In this case, the chuck may directly clamp onto the cutting edge of the drill bit. As a critical working part of the drill bit, the cutting edge is relatively sharp and fragile. Under the clamping force of the chuck and the subsequent drilling torque, it is very easy to cause deformation or damage to the cutting edge, which not only affects drilling accuracy and work efficiency, but also significantly shortens the service life of the drill bit. Although the prior art discloses a double-ended high-speed steel drill bit with patent number CN219837217U, which uses a protective sleeve with a groove and a protrusion to cooperate... The protective sleeve can slide on the drill bit body. When drilling with the first drill tip, the protective sleeve can be slid to the side of the second drill tip. After positioning, the drill chuck can be clamped at any position outside the protective sleeve, without being restricted to the middle position of the drill bit body. Therefore, the length of the drill tip is not limited, and thicker materials can be drilled. This patent can solve the drawbacks of the double-headed drill bit proposed in this application to a certain extent. However, it still has the following defects: 1. After the chuck fixes the protective sleeve, if it is necessary to change the double-headed drill bit during operation, the operator needs to first remove the protective sleeve from the chuck, then remove the bolts, then change the position of the two ends of the double-headed drill bit, and finally clamp and fix it. This operation is more troublesome and affects the processing efficiency; 2. Since the double-headed drill bit tool is set as one piece, when the cutting edge of one end cannot be used normally due to wear, breakage or other damage, it becomes a single-headed drill bit, thus losing the original functional integration advantage and significance of the double-headed drill bit tool. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a forming drilling and chamfering tool for processing copper charging plugs for new energy vehicles, so as to solve the technical problems in the background art mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a forming drilling and chamfering tool for processing copper charging plugs for new energy vehicles, comprising two sets of tool holders, with wedge blocks fixed at the top of one set of tool holders and the bottom of the other set of tool holders, one set of wedge blocks having a slot at the bottom, and the other set of wedge blocks having an insert at the top, the outer surface of the insert having a fastening screw hole, the surface of one set of wedge blocks being connected to a fastening bolt extending into the fastening screw hole, both sides of both sets of wedge blocks having anti-loosening screw holes, a clamp sleeve being sleeved on the outer surface of the tool holder, and both sides of the clamp sleeve being connected to anti-loosening bolts extending into the anti-loosening screw holes, the lower part of the inside of the clamp sleeve having a wedge groove.

[0006] Furthermore, the handle is provided with a cutting edge, which includes a drilling edge and a chamfering edge.

[0007] By adopting the above technical solution, the drilling cutting edge and the chamfering cutting edge on the tool holder are combined, which can complete drilling and chamfering in one go, thus improving work efficiency.

[0008] Furthermore, both the wedge block and the wedge groove are hexagonal, and the wedge block and the wedge groove are compatible with each other.

[0009] By adopting the above technical solutions, the stability and accuracy of the fit can be improved, ensuring that the drill bit is firmly installed in the chuck and is not easy to loosen, and also providing stable torque.

[0010] Furthermore, grooves are provided on the outer surface of the set of wedge blocks and on both sides of the clamping cylinder, and the fastening bolts and anti-loosening bolts are located in the grooves.

[0011] By adopting the above technical solution, the sinker can prevent the bolts from protruding from the surface and affecting the installation of the wedge groove, while also protecting the bolts and reducing damage caused by external impacts.

[0012] Furthermore, both the fastening bolts and the anti-loosening bolts are provided in two sets, and the anti-loosening bolts and the anti-loosening screw holes are compatible, as are the fastening bolts and the fastening screw holes.

[0013] By adopting the above technical solution, the combination of fastening bolts and anti-loosening bolts can make the connection between the insert and the slot more secure, while the combination of anti-loosening bolts and anti-loosening screw holes can make the drill bit more stable in the chuck.

[0014] Furthermore, both the fastening bolts and the anti-loosening bolts are internal hex bolts.

[0015] By adopting the above technical solution and using an internal hexagonal design, it is easy to operate with an internal hexagonal wrench, which can provide a large tightening torque and reduce the space occupied by the bolt head, thus adapting to the needs of trough installation.

[0016] Furthermore, the insert and the slot are adapted to each other, and the insert is detached from the slot by fastening bolts.

[0017] By adopting the above technical solution, the accuracy and stability of the connection are guaranteed, and quick disassembly and assembly are achieved, making it convenient to replace damaged parts.

[0018] Furthermore, the outer surface of the tool holder is provided with a cutting edge band and a chip removal groove. The cutting edge band of the top set of drill bits rotates at 35° on the tool holder, and the cutting edge band of the bottom set of drill bits rotates at 30° on the tool holder.

[0019] By adopting the above technical solutions, the rotation design at different angles can be adapted to different drilling needs, and with the chip removal groove, the cutting adaptability and chip removal effect can be improved.

[0020] In summary, the present invention has the following main advantages: 1. This utility model, by incorporating a chuck, wedge blocks, wedge-groove anti-loosening bolts, and anti-loosening screw holes, allows the operator to insert the chuck into the chuck when the chuck is clamping and fixing the drill bit. This ensures that the clamping force of the chuck acts on the chuck rather than the cutting edge, thus providing reliable protection for the cutting edge. This completely avoids deformation and damage to the cutting edge caused by the chuck directly clamping the cutting edge, guaranteeing drilling accuracy and work efficiency, and extending the service life of the drill bit. Furthermore, when it is necessary to change the positions of the two ends of the double-ended drill bit, the operator only needs to unscrew the anti-loosening bolts from the anti-loosening screw holes. With the cooperation of the wedge blocks and wedge grooves, the drill bit can be quickly pulled out and its positions changed. After that, it can be inserted back into the chuck and re-secured by the anti-loosening bolts. There is no need to remove the chuck from the chuck for the change operation, greatly simplifying the switching steps and reducing operation time. 2. This utility model, by incorporating a fastening bolt, a fastening screw hole, a insert block, and a slot, allows for easy replacement of a double-ended drill bit when one end's cutting edge is worn, broken, or otherwise damaged. The operator can unscrew the fastening bolt from the fastening screw hole and then separate the insert block from the slot, thus creating two sets of single-ended drill bits. The operator only needs to replace the damaged end. To replace, the insert block of the new single-ended drill bit is aligned with the slot of the other set, and the fastening bolt is then screwed into the fastening screw hole to complete the assembly, restoring the functionality of the double-ended drill bit. This eliminates the need to scrap the entire drill bit and ensures rapid restoration of normal tool use after replacement, maintaining the tool's economy and practicality, and enhancing its adaptability in practical applications. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the clamping sleeve of this utility model; Figure 3 This is a schematic diagram of the side sectional structure of the clamping cylinder of this utility model; Figure 4 This is a schematic diagram of the wedge-shaped block structure of this utility model; Figure 5 This is a schematic diagram of the wedge-shaped groove structure of this utility model; Figure 6 This is a schematic diagram of the knife handle structure of this utility model; Figure 7 This is a schematic diagram of the anti-loosening bolt and anti-loosening screw hole structure of this utility model. Figure 8 This is a schematic diagram of the plug and slot structure of this utility model.

[0022] In the diagram: 1. Tool holder; 2. Chamfered cutting edge; 3. Drilling cutting edge; 4. Clamp; 5. Wedge groove; 6. Anti-loosening bolt; 7. Wedge block; 8. Fastening bolt; 9. Anti-loosening screw hole; 10. Slot; 11. Insert block; 12. Fastening screw hole; 13. Cutting edge band; 14. Chip removal groove. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] The embodiments of this utility model will be described below based on its overall structure.

[0025] Example 1: A forming drilling and chamfering tool for machining copper charging plugs for new energy vehicles, such as... Figures 1-8 As shown, the device includes two sets of tool handles 1, each with a cutting edge, including a drilling edge 3 and a chamfering edge 2. The drilling edge 3 and chamfering edge 2 on the tool handle 1 combine to complete drilling and chamfering in one operation, improving work efficiency. Wedge blocks 7 are fixed to the top of one set of tool handles 1 and the bottom of the other set. One set of wedge blocks 7 has a slot 10 at its bottom, and the other set has an insert 11 at its top. The outer surface of the insert 11 has a fastening screw hole 12. The surface of one set of wedge blocks 7 is connected to... There is a fastening bolt 8 extending into the fastening screw hole 12. Both sides of the two sets of wedge blocks 7 are provided with anti-loosening screw holes 9. The outer surface of the handle 1 is fitted with a clamp 4, and both sides of the clamp 4 are connected with anti-loosening bolts 6 extending into the anti-loosening screw holes 9. The lower part of the inside of the clamp 4 is provided with a wedge groove 5. The insert 11 and the slot 10 are compatible. The insert 11 is detached from the slot 10 by the fastening bolt 8, which not only ensures the accuracy and stability of the connection, but also realizes quick disassembly and assembly, and facilitates the replacement of damaged parts.

[0026] See Figures 2-8 In the above embodiments, both the wedge block 7 and the wedge groove 5 are hexagonal, and the wedge block 7 and the wedge groove 5 are compatible, which can improve the stability and accuracy of the fit, ensure that the drill bit is firmly installed in the chuck 4 and is not easy to loosen, and also provide stable torque.

[0027] See Figures 1-8In the above embodiment, a set of wedge blocks 7 are provided with grooves on the outer surface and both sides of the clamping cylinder 4, and the fastening bolts 8 and anti-loosening bolts 6 are located in the grooves. The grooves can prevent the bolts from protruding from the surface and affecting the installation of the wedge grooves 5, while also protecting the bolts and reducing damage caused by external force collisions.

[0028] See Figures 1-8 In the above embodiment, both the fastening bolt 8 and the anti-loosening bolt 6 are provided in two sets, and the anti-loosening bolt 6 and the anti-loosening screw hole 9 are adapted to each other. The fastening bolt 8 and the fastening screw hole 12 are adapted to each other. The cooperation between the fastening bolt 8 and the anti-loosening bolt 6 can make the connection between the insert 11 and the slot 10 more secure, while the cooperation between the anti-loosening bolt 6 and the anti-loosening screw hole 9 can make the drill bit more stable in the chuck 4.

[0029] See Figures 1-8 In the above embodiments, both the fastening bolt 8 and the anti-loosening bolt 6 are internal hex bolts. The internal hex design makes it easy to operate with an internal hex wrench, which can provide a large tightening torque and reduce the space occupied by the bolt head, thus meeting the requirements of the sinkhole installation.

[0030] Example 2: To adapt to different production and processing needs, Example 2 is an improvement on Example 1. (See attached document.) Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 The outer surface of the tool holder 1 is provided with a cutting edge band 13 and a chip removal groove 14. The cutting edge band 13 of the top set of drill bits rotates at 35° on the tool holder 1, and the cutting edge band 13 of the bottom set of drill bits rotates at 30° on the tool holder 1. The different rotation angles can be adapted to different drilling requirements. Combined with the chip removal groove 14, the cutting adaptability and chip removal effect are improved.

[0031] The implementation principle of this utility model is as follows: First, the clamp 4 is clamped onto the chuck (the chuck does not obstruct the anti-loosening bolt 6). At this time, the clamping force of the chuck acts on the clamp 4, avoiding direct contact with the cutting edge 13 on the tool holder 1. The anti-loosening bolt 6 in the groove does not protrude, ensuring a stable clamping without affecting operation. After clamping, the copper charging plug for new energy vehicles can be processed. After starting the equipment, the power mechanism causes the chuck to drive the clamp 4 to rotate, and the wedge groove 5 inside the clamp 4 drives the hexagonal wedge block 7 on the tool holder 1 to rotate synchronously, so that the tool holder 1 rotates accordingly. The drilling blade 3 drills the copper charging plug for new energy vehicles. After drilling, the chamfering blade 2 chamfers the hole. If it is necessary to change the two ends of the tool holder 1 to adapt to different specifications of copper... When processing the charging plug, simply unscrew the anti-loosening bolt 6, use the compatibility of the wedge block 7 and the wedge groove 5 to pull out the tool handle 1 assembly, reverse the direction and reinsert it into the clamp 4, then screw in the anti-loosening bolt 6 to fix it. If the cutting edge 13, drilling edge 3 or chamfering edge 2 of one end of the tool handle 1 is worn or broken, the fastening bolt 8 can be unscrewed to separate the insert 11 from the slot 10, remove the damaged tool handle 1, replace it with a new tool handle 1, align the insert 11 of the new tool handle 1 with the slot 10 of the other set of tool handle 1, and screw in the fastening bolt 8 to the fastening screw hole 12 to reassemble.

[0032] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A forming drilling and chamfering tool for machining copper charging plugs for new energy vehicles, comprising two sets of tool holders (1), characterized in that: A set of knife handles (1) has a wedge block (7) fixed at the top and the bottom of another set of knife handles (1). One set of wedge blocks (7) has a slot (10) at the bottom and another set of wedge blocks (7) has an insert (11) at the top. The outer surface of the insert (11) has a fastening screw hole (12). The surface of one set of wedge blocks (7) is connected to a fastening bolt (8) extending into the fastening screw hole (12). Both sides of the two sets of wedge blocks (7) have anti-loosening screw holes (9). The outer surface of the knife handle (1) is fitted with a clamp (4), and both sides of the clamp (4) are connected to anti-loosening bolts (6) extending into the anti-loosening screw holes (9). The lower part of the inside of the clamp (4) has a wedge groove (5).

2. The forming drilling and chamfering tool for machining copper charging plugs for new energy vehicles according to claim 1, characterized in that: The handle (1) is provided with a cutting edge, which includes a drilling cutting edge (3) and a chamfering cutting edge (2).

3. The forming drilling and chamfering tool for machining copper charging plugs for new energy vehicles according to claim 1, characterized in that: Both the wedge block (7) and the wedge groove (5) are hexagonal, and the wedge block (7) and the wedge groove (5) are compatible.

4. The forming drilling and chamfering tool for machining copper charging plugs for new energy vehicles according to claim 1, characterized in that: A set of wedges (7) and both sides of the clamp (4) are provided with sink grooves, and the fastening bolts (8) and the anti-loosening bolts (6) are located in the sink grooves.

5. The forming drilling and chamfering tool for machining copper charging plugs for new energy vehicles according to claim 1, characterized in that: The fastening bolt (8) and the anti-loosening bolt (6) are provided in two sets, and the anti-loosening bolt (6) and the anti-loosening screw hole (9) are matched, and the fastening bolt (8) and the fastening screw hole (12) are matched.

6. The forming drilling and chamfering tool for machining copper charging plugs for new energy vehicles according to claim 1, characterized in that: Both the fastening bolt (8) and the anti-loosening bolt (6) are internal hex bolts.

7. The forming drilling and chamfering tool for machining copper charging plugs for new energy vehicles according to claim 1, characterized in that: The insert (11) and the slot (10) are adapted to each other, and the insert (11) is detached from the slot (10) by fastening bolts (8).

8. The forming drilling and chamfering tool for machining copper charging plugs for new energy vehicles according to claim 1, characterized in that: The outer surface of the handle (1) is provided with a cutting edge band (13) and a chip removal groove (14). The cutting edge band (13) of the top set of drill bits rotates at 35° on the handle (1), and the cutting edge band (13) of the bottom set of drill bits rotates at 30° on the handle (1).

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