High-precision anti-vibration drilling device for automobile water-cooling plate machining

Abstract

The invention discloses a high-precision anti-vibration drilling device for machining of an automobile water-cooling plate. The high-precision anti-vibration drilling device comprises a positioning seat; the drilling mechanism comprises a first drilling piece, a second drilling piece, an auxiliary tool changing structure and a rotary driving mechanism which are arranged in the shell, each of the first drilling piece and the second drilling piece comprises a sliding seat and a first gear, the sliding seats are in butt joint with a guide seat in the shell in a rotatable and sliding mode, and the first gears are in butt joint with the sliding seats and a first tool or a second tool; the shell is provided with a through hole corresponding to the first tool or the second tool, a first motor on the shell drives the auxiliary tool changing structure to rotate, a boss at the upper end of the sliding seat abuts against a wedge-shaped guide structure on the auxiliary tool changing structure, and the rotary driving mechanism comprises a second gear in butt joint with a second motor. The second gear and the first gear are in meshed connection and can move and be separated relative to the axial direction. The drilling device can solve the problems that an existing drilling device for the automobile water-cooling plate is poor in vibration-proof performance, so that the drilling stability and the deep drilling machining quality are poor.

Description

Technical Field

[0001] This invention relates to the field of deep machining technology for cutting blades, specifically a high-precision anti-vibration drilling device for machining automotive water-cooled plates. Background Technology

[0002] Drilling is one of the most common and basic metal cutting methods, which uses a cutting tool (drill bit) to create circular through holes or blind holes in solid materials. Drilling is often used in the production of components such as automotive water-cooled panels.

[0003] The water-cooled plate in an automotive vehicle is a crucial and technologically advanced core component, often referred to as the battery cooler, and is a key part of the battery thermal management system. Essentially a metal heat exchanger with complex internal flow channels, the coolant flows through it, absorbing or dissipating heat through thermal conduction with the metal plate, thereby maintaining the battery within its optimal operating temperature range.

[0004] Automotive water-cooled plates typically require drilling to create holes for assembly. However, current drilling equipment suffers from poor vibration damping, relying on a single cutting tool. This results in significant wobble and vibration during the initial cut into the water-cooled plate, and the presence of tangled chips further exacerbates the vibration, particularly affecting the precision required for drilling water-cooled plates. Existing technology significantly impacts drilling stability and depth, leading to poor drilling quality. Summary of the Invention

[0005] The purpose of this invention is to address the problem that existing drilling devices used in automotive water-cooled plate machining suffer from significant vibration during the initial cutting of the tool into the water-cooled plate and when chips become entangled and clogged, resulting in poor vibration resistance and poor drilling stability and depth quality. Therefore, this invention provides a high-precision vibration-resistant drilling device for automotive water-cooled plate machining.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-precision anti-vibration drilling device for machining automotive water-cooled plates, comprising:

[0007] A positioning seat is set on the workbench, and the water-cooled plate is positioned in the placement slot of the positioning seat;

[0008] A drilling mechanism, movably mounted above the positioning seat via a position adjustment mechanism, includes a housing and a first drilling component, a second drilling component, an auxiliary tool changing structure, and a rotary drive mechanism disposed within the housing. The first and second drilling components each include a slide and a first gear. The slide is rotatably and slidably connected to a guide seat within the housing. The first gear connects to the lower end of the slide, and its bottom connects to a first or second tool. The diameter of the first tool is smaller than the diameter of the second tool. The housing has through holes corresponding to the first or second tool. A first motor on the housing drives the auxiliary tool changing structure to rotate. A boss at the upper end of the slide abuts against a wedge-shaped guide structure on the auxiliary tool changing structure. The wedge-shaped guide structure includes a wedge-shaped section for guiding the tool when it is retracted or removed from the housing and a horizontal section for positioning. The rotary drive mechanism includes a second motor and a second gear. The second gear connects to the output end of the second motor and meshes with the first gear, allowing for relative axial movement and separation.

[0009] As a further description of the above technical solution:

[0010] One end of the negative pressure channel in the workbench is connected to an external vacuum generator, and the other end of the negative pressure channel is connected to several suction ports, which extend to the surface of the placement slot.

[0011] As a further description of the above technical solution:

[0012] The placement groove is provided with several clearance grooves corresponding to the hole structure formed after drilling on the water-cooled plate, and the clearance groove is provided with a support block elastically floating through a first elastic element.

[0013] As a further description of the above technical solution:

[0014] The guide seat is a ring structure fitted onto the cylindrical slide, and it is positioned inside the outer shell by several spokes on the outer side.

[0015] As a further description of the above technical solution:

[0016] A support ring is also fitted onto the slide block, the support ring abuts against the boss, and a second elastic element is provided between the support ring and the guide seat. The top edge of the guide seat is stepped.

[0017] As a further description of the above technical solution:

[0018] The wedge-shaped guide structure includes an outer guide ring and an inner guide ring respectively disposed at the edge and center of the auxiliary tool changing structure. The inner guide ring is positioned on the column in the center of the auxiliary tool changing structure, and the outer guide ring and the inner guide ring respectively abut against the outer side and the inner side of the boss.

[0019] As a further description of the above technical solution:

[0020] The horizontal segment includes an upper dead point horizontal surface and a lower dead point horizontal surface located on the bottom surfaces of the outer guide ring and the inner guide ring, and the wedge segment includes a wedge-shaped guide surface that connects to the two ends of the upper dead point horizontal surface and the lower dead point horizontal surface.

[0021] As a further description of the above technical solution:

[0022] The wedge-shaped guide surface has a central horizontal plane in some areas.

[0023] As a further description of the above technical solution:

[0024] The upper end of the second gear is connected to the connecting column, and the connecting column is rotatably connected to the column through a bearing connector.

[0025] As a further description of the above technical solution:

[0026] The outer casing docking bracket covers the first motor and is rotatably docked with the mounting bracket, which docks with the position adjustment mechanism. The output end of the third motor on the mounting bracket docks with the bracket.

[0027] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0028] 1. The drilling device for machining automotive water-cooled plates of the present invention, through the sliding of the first and second drilling components on the guide seat and in conjunction with the automatically rotating auxiliary tool changing structure, can realize the continuous automatic switching of drilling tools of different sizes. The tools are driven by a second motor and gear structure. As the tools are switched, the tools can be docked or separated from the rotary drive mechanism to improve the stability of tool rotation drive and drilling. In use, as the auxiliary tool changing structure rotates, the first and second drilling components are exposed from the outer shell in sequence. The tool with the smaller diameter first pre-drills the water-cooled plate, that is, first drills a shallow hole in the water-cooled plate to provide centering and guidance for the subsequent formal drilling tool. After that, the tool with the same diameter as the water-cooled plate is drilled to form the hole. The water-cooled plate is then enlarged and shaped using a cutting tool with a diameter matching the hole structure. This special drilling method, which involves setting a pre-drilling process before drilling, reduces the swaying and vibration of the cutting tool when it initially enters the water-cooled plate, thus improving drilling stability. The auxiliary tool changing structure, in conjunction with a CNC first motor with reciprocating bidirectional drive function, enables smooth operation of the cutting tool retracting or ejecting from the housing. This allows for segmented, gradually deepening processing of a single drilling process, achieving pecking drilling. That is, after drilling to a certain depth, the cutting tool retracts to break and remove chips before continuing to drill, achieving efficient chip removal and avoiding chip blockage and entanglement that could cause vibration and disrupt regenerative chatter. Through the above design, the effects of vibration-proof and high-precision deep drilling are achieved.

[0029] 2. Based on the contour-guided positioning of the water-cooled plate by the placement groove, the plate is positioned by suction through the suction port. This allows for large-area contact, adhesion, and structural compression of the water-cooled plate within the placement groove, ensuring firm positioning of all parts of the plate. This provides stable, continuous, and well-damped support for the water-cooled plate, significantly suppressing its vibration. At the moment the tool penetrates the water-cooled plate, the support block and the first elastic element apply a certain supporting force to the tool, preventing the instantaneous disappearance of the supporting force and avoiding instantaneous tearing of the water-cooled plate, increased burrs, and severe vibration between the tool and the plate. This further improves the vibration damping effect and drilling quality. The outer casing is rotatable to assist in tool changing. During tool changing, the outer casing rotates half a revolution, eliminating the need to adjust the position of the drilling mechanism. This allows for rapid alignment of the second tool with the hole structure of the water-cooled plate, improving the continuity of multi-step drilling operations and the drilling accuracy of multi-tool drilling methods. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of a high-precision anti-vibration drilling device for machining automotive water-cooled plates.

[0032] Figure 2 The drilling mechanism in a high-precision anti-vibration drilling device for machining automotive water-cooled plates is in use. Figure 1 .

[0033] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0034] Figure 4 This is an unfolded diagram of the inner guide ring in a high-precision anti-vibration drilling device for machining automotive water-cooled plates.

[0035] Figure 5 The drilling mechanism in a high-precision anti-vibration drilling device for machining automotive water-cooled plates is in use. Figure 2 .

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Positioning seat; 2. Worktable; 3. Drilling mechanism; 4. Position adjustment mechanism; 5. Housing; 6. Auxiliary tool changing structure; 7. Slide; 8. First gear; 9. Guide seat; 10. First tool; 11. Second tool; 12. Through hole; 13. First motor; 14. Boss; 15. Second motor; 16. Second gear; 17. Negative pressure channel; 18. Suction port; 19. Clearance groove; 20. Support block; 21. First elastic element; 22. Spoke; 23. Support ring; 24. Second elastic element; 25. Outer guide ring; 26. Column; 27. Inner guide ring; 28. Top dead center horizontal plane; 29. ​​Bottom dead center horizontal plane; 30. Wedge-shaped guide surface; 31. Central horizontal plane; 32. Connecting column; 33. Bearing connector; 34. Bracket; 35. Mounting bracket; 36. Third motor. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0042] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Example 1:

[0044] Please see Figure 1-5 This invention provides a technical solution: a high-precision anti-vibration drilling device for machining automotive water-cooled plates, comprising:

[0045] Positioning seat 1 is set on workbench 2, and water-cooled plate is positioned in the placement slot of positioning seat 1;

[0046] The drilling mechanism 3, movably mounted above the positioning seat 1 via a position adjustment mechanism 4, includes a housing 5 and a first drilling component, a second drilling component, an auxiliary tool changing structure 6, and a rotary drive mechanism disposed within the housing 5. Both the first and second drilling components include a slide 7 and a first gear 8. The slide 7 rotatably and slidably engages with a guide seat 9 within the housing 5. The first gear 8 engages with the lower end of the slide 7, and its bottom engages with either a first tool 10 or a second tool 11. The diameter of the first tool 10 is smaller than the diameter of the second tool 11. The housing... 5. A through hole 12 corresponding to the first tool 10 or the second tool 11 is provided. The first motor 13 on the through hole drives the auxiliary tool changing structure 6 to rotate. The boss 14 at the upper end of the slide block 7 abuts against the wedge-shaped guide structure on the auxiliary tool changing structure 6. The wedge-shaped guide structure includes a wedge-shaped section for guiding the tool when it is put into or taken out of the housing 5 and a horizontal section for positioning. The rotary drive mechanism includes a second motor 15 and a second gear 16. The second gear 16 is connected to the output end of the second motor 15. It is meshed with the first gear 8 and can move and separate relative to each other axially.

[0047] The position adjustment mechanism 4 enables the drilling mechanism 3 to move in at least one of the X-axis, Y-axis, and Z-axis directions. It includes several linear drive devices extending along the X-axis, Y-axis, or Z-axis (such as...). Figure 1 The linear motor shown in the figure and the slide of the adjacent linear drive device are connected. The linear motor drives the slide to move, thereby realizing the adjustment of the position of the drilling mechanism 3.

[0048] In addition, both the first tool 10 and the second tool 11 can be internal cooling drill bits, which is an existing technology. It can achieve efficient cooling and lubrication of the cutting part of the workpiece and the drilling tool, and improve the high-precision and depth CNC machining quality of the drilling tool on the water-cooled plate. The full name of the internal cooling drill bit is internal coolant supply drill bit. It is a drill bit that directly delivers high-pressure coolant to the cutting edge through the channels inside the drill spindle, tool holder and drill bit, so that the contact area between the cutting tool and the water-cooled plate is efficiently cooled and lubricated.

[0049] In this embodiment, a wedge-shaped guide structure is used to abut against the edge of the top surface of the boss 14, with the wedge-shaped or horizontal bottom surface abutting against it. This, combined with the rotational drive of the auxiliary tool changing structure 6, enables the tool to be ejected or retracted. Figure 2 , 5 As shown; the wedge-shaped guide structure can also be sleeved on the boss 14 and have a wedge-shaped or annular inner guide groove on the inner side. The top and bottom surfaces of the inner guide groove slide against the top and bottom edges of the boss 14 respectively (the inner guide groove clamps the boss 14). When in use, the auxiliary tool changing structure 6 rotates, and the top or bottom surface of the inner guide groove pushes the edge of the corresponding end face of the boss 14 to realize the ejection or pull-in of the tool into the outer shell 5.

[0050] The drilling device for machining automotive water-cooled plates of the present invention, through the sliding of the first and second drilling components on the guide seat and in conjunction with the automatically rotating auxiliary tool changing structure, can achieve continuous automatic switching of drilling tools of different sizes. The tools are driven by a second motor and gear structure. As the tools are switched, the tools can be docked or separated from the rotary drive mechanism to improve the stability of tool rotation drive and drilling. In use, as the auxiliary tool changing structure rotates, the first and second drilling components are exposed from the housing in sequence. When one tool is exposed, the other tool is retracted into the housing. The smaller diameter tool first pre-drills a shallow hole in the water-cooled plate to provide centering and guidance for the subsequent formal drilling tool. After that, the tool with the smaller diameter... The diameter of the hole structure formed by drilling the water-cooled plate is matched with the cutting tool, which then expands the hole in the water-cooled plate to form the hole. Through the special drilling method of setting a pre-drilling process before drilling, the swing and vibration of the cutting tool when it first cuts into the water-cooled plate can be reduced, and the drilling stability can be improved. The auxiliary tool changing structure, together with the first CNC motor with reciprocating bidirectional drive function, can realize the smooth operation of the cutting tool retracting or ejecting from the shell, so as to realize the segmented and gradually deepening processing method of a single drilling process, realizing pecking drilling, that is, after drilling to a certain depth, the cutting tool retracts to break and remove chips, and then continues to drill, achieving efficient chip removal and avoiding chip blockage and entanglement that causes vibration and disrupts the formation of regenerative chatter. Through the above design, the effect of vibration-proof and high-precision deep drilling is achieved.

[0051] The connection structure between the slide 7 and the guide seat 9 is as follows: the guide seat 9 is a ring structure sleeved on the cylindrical slide 7, and is positioned inside the outer shell 5 by several spokes 22 on its outer side. A support ring 23 is also sleeved on the slide 7, abutting against the boss 14. A second elastic element 24 is provided between the support ring 23 and the guide seat 9. The top edge of the guide seat 9 is stepped. When the tool is ejected, the stepped top edge of the corresponding guide seat 9 abuts against the bottom of the support ring 23. Under the downward pressure of the wedge-shaped guide structure, the guide seat 9, support ring 23, and boss 14 are sequentially abutted and positioned to ensure drilling stability. Furthermore, all contact surfaces are smooth to prevent tool rotation from affecting the stability of the aforementioned structure.

[0052] The wedge-shaped guide structure includes an outer guide ring 25 and an inner guide ring 27 respectively disposed at the edge and center of the auxiliary tool changing structure 6. The inner guide ring 27 is positioned on the central column 26 of the auxiliary tool changing structure 6. The outer guide ring 25 and the inner guide ring 27 abut against the outer and inner sides of the boss 14, respectively. By supporting and guiding the inner and outer sides of the drilling part through the inner and outer guide rings, the stability of the movement when the tool is retracted or ejected from the housing 5 can be further improved.

[0053] The horizontal segment includes an upper dead center horizontal surface 28 and a lower dead center horizontal surface 29 located on the bottom surfaces of the outer guide ring 25 and the inner guide ring 27. The wedge-shaped segment includes wedge-shaped guide surfaces 30 that abut the two ends of the upper dead center horizontal surface 28 and the lower dead center horizontal surface 29. When the tool is fully retracted into the housing 5, the corresponding boss 14 is positioned against the upper dead center horizontal surface 28, and when the tool is fully ejected from the housing 5, the corresponding boss 4 is positioned against the lower dead center horizontal surface 29.

[0054] The upper end of the second gear 16 is connected to the connecting column 32. The connecting column 32 is rotatably connected to the column 26 through the bearing connector 33, thereby realizing the connection between the auxiliary tool changing structure 6 and the rotary drive mechanism, improving the stability of their rotational operation, and not affecting their independent rotational drive.

[0055] The working principle of a high-precision anti-vibration drilling device for machining automotive water-cooled plates in this embodiment includes: During use, the water-cooled plate is positioned in the placement groove, and the position adjustment mechanism 4 moves the drilling mechanism 3 to the drilling area of ​​the water-cooled plate. Then, the second motor 15 operates, driving the first tool 10 exposed in the outer shell 5 to rotate via a gear structure. The position adjustment mechanism 4, in conjunction with the vertical feed of the tool, performs pre-drilling. During this process, a pecking drilling method can be used. The first motor 13 can drive the auxiliary tool changing structure 6 to reciprocate. When rotating in the forward direction, the boss 14 disengages from the lower stop horizontal plane 29 and is lifted by the support ring 23 and the second elastic element 24, and guided upwards by the wedge-shaped guide surface 30. The tool gradually moves into the outer shell 5, simultaneously disengaging from the water-cooled plate for chip breaking and removal (during which the rotary drive mechanism stops operating). When rotating in the reverse direction, the tool is ejected again and inserted into the hole in the water-cooled plate. Then, the rotary drive mechanism operates and, in conjunction with the vertical feed of the position adjustment mechanism 4, performs deeper drilling of the water-cooled plate. Specifically, as follows... Figure 2 As shown.

[0056] After completing the pre-drilling process, the auxiliary tool changing structure 6 rotates 180°, causing the first tool 10 to fully retract into the housing 5 and the second tool 11 to fully extend out of the housing 5 (the first gear 8 corresponding to the former disengages from the second gear 16, while the latter engages with the second gear 16). At this point, the second tool 11 does not contact the water-cooling plate (when both tools are fully exposed out of the housing 5, the exposed length of the second tool 11 is shorter), eliminating the need for vertical position adjustment. Then, the second tool 11 aligns with the pre-formed hole structure of the water-cooling plate, and the rotation drive mechanism and position adjustment mechanism 4 operate to drill and form the hole structure of the water-cooling plate, as detailed below. Figure 5 As shown, during this process, a pecking drill can also be used. The above design achieves the effects of vibration damping and high-precision deep drilling.

[0057] Example 2:

[0058] Please see Figure 1 , 3 The figure shows a high-precision anti-vibration drilling device for machining automotive water-cooled plates provided in Embodiment 2 of the present invention. Based on the above embodiments, the following improved technical solutions are made: one end of the negative pressure channel 17 in the workbench 2 is connected to an external vacuum generator, and the other end of the negative pressure channel 17 is connected to a plurality of suction ports 18, which extend to the surface of the placement groove.

[0059] In this embodiment, based on the contour-guided positioning of the water-cooled plate by the placement groove, the water-cooled plate is adsorbed and positioned by the suction port 18, which can achieve large-area contact, bonding and structural compression of the water-cooled plate in the placement groove, so that each part of the plate is firmly positioned. A high-density phenolic resin board, polyurethane pad or soft metal plate can be placed in the placement groove to provide stable, continuous and well-damped support for the water-cooled plate, which greatly suppresses the vibration of the water-cooled plate.

[0060] The placement groove is provided with several clearance grooves 19 corresponding to the hole structure formed after drilling on the water cooling plate. The clearance grooves 19 are provided with support blocks 20 elastically floating through the first elastic element 21.

[0061] At the moment the cutting tool penetrates the water-cooled plate, the support block 20 and the first elastic element 21 can apply a certain supporting force to the cutting tool, preventing the instantaneous disappearance of the supporting force on the cutting tool, which would cause instantaneous tearing of the water-cooled plate, increase in burrs, and violent vibration between the cutting tool and the plate, thus further improving the vibration damping effect and drilling quality. When the drilling mechanism 3 is removed and the suction port 18 releases its adsorption effect on the water-cooled plate, the first elastic element 21 pushes the support block 20 out of the clearance groove 19, thereby causing the support block 20 to initially push the top of the water-cooled plate out of the placement groove (the maximum dimension of the horizontal cross-section of the support block 20 is greater than the horizontal cross-section dimension of the hole structure of the water-cooled plate), so as to achieve the demolding effect and facilitate the unloading operation of the water-cooled plate.

[0062] Example 3:

[0063] Please see Figure 4 The figure shows a high-precision anti-vibration drilling device for machining automotive water-cooled plates according to Embodiment 3 of the present invention. Based on the above embodiments, this embodiment further improves upon the following technical solution: a central horizontal surface 31 is partially provided on the wedge-shaped guide surface 30. This allows the two tools to rest on the central horizontal surface 31 when the auxiliary tool changing structure 6 rotates, ensuring that both tools are retracted into the housing 5, preventing them from being exposed and causing surface dust adhesion, which would affect subsequent processing.

[0064] Example 4:

[0065] Please see Figure 1 , 5The figure shows a high-precision anti-vibration drilling device for machining automotive water-cooled plates according to Embodiment 4 of the present invention. Based on the above embodiments, this embodiment further improves upon the following technical solution: The outer shell 5 connects to the bracket 34, which covers the first motor 13 and rotatably connects to the mounting frame 35. The mounting frame 35 connects to the position adjustment mechanism 4, and the output end of the third motor 36 on the mounting frame connects to the bracket 34. The rotation axes of the outer shell 5 and the bracket 34 are located at the midpoint of the vertical line connecting the two parallel tool axes. This allows the third motor 36 to operate during tool changing, driving the outer shell 5 to rotate, thus moving the second tool 11 to the position where the first tool 10 previously pre-drilled a hole, aligning the second tool 11 with the hole structure axis of the pre-drilled hole. This enables continuous tool changing and drilling operations without needing to adjust the position of the drilling mechanism 3 to align the second tool 11 with the hole structure of the water-cooled plate, improving the continuity of multi-step drilling operations and the drilling accuracy of multi-tool combined drilling methods.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-precision anti-vibration drilling device for machining of an automobile water cooling plate, characterized in that, The utility model relates to a water-cooled plate drilling device, including: Positioning seat is located on the workbench, and the water-cooled plate is positioned in the placing groove of the positioning seat; Drilling mechanism is movably arranged above the positioning seat through the position adjusting mechanism, which includes a shell and a first drilling part, a second drilling part, an auxiliary tool changing structure and a rotary drive mechanism arranged in the shell, the first drilling part and the second drilling part each include a sliding seat and a first gear, the sliding seat is rotatably and slidably connected to the guide seat in the shell, the first gear is connected to the lower end of the sliding seat, the bottom of the first gear is connected to a first tool or a second tool, the diameter of the first tool is smaller than that of the second tool, the shell is provided with a through hole corresponding to the first tool or the second tool, a first motor on the shell drives the auxiliary tool changing structure to rotate, the boss on the upper end of the sliding seat abuts against the wedge-shaped guide structure on the auxiliary tool changing structure, the wedge-shaped guide structure includes a wedge-shaped segment for guiding when the tool is put into or taken out of the shell and a horizontal segment for positioning, the rotary drive mechanism includes a second motor and a second gear, the second gear is connected to the output end of the second motor, and the second gear is meshed with the first gear and can be axially moved and separated.

2. The high-precision anti-vibration drilling device for machining of an automobile water cooling plate according to claim 1, characterized in that, One end of the negative pressure channel in the workbench is connected to a vacuum generating device of an external device, and the other end of the negative pressure channel is connected to a plurality of suction ports, and the suction ports extend to the surface of the placing groove.

3. The high-precision anti-vibration drilling device for machining of an automobile water cooling plate according to claim 1, characterized in that, A plurality of avoiding grooves corresponding to the hole structure formed after drilling on the water-cooled plate are arranged in the placing groove, and a support block is elastically and floatingly arranged in the avoiding groove by a first elastic member.

4. The high-precision anti-vibration drilling device for machining of an automobile water cooling plate according to claim 1, characterized in that, The guide seat is a circular ring structure sleeved on the cylindrical sliding seat and positioned in the shell through a plurality of spokes on the outer side.

5. The high-precision anti-vibration drilling device for machining of an automobile water cooling plate according to claim 1, characterized in that, A support ring is also sleeved on the sliding seat, the support ring abuts against the boss, a second elastic member is arranged between the support ring and the guide seat, and the top edge of the guide seat is in a stepped shape.

6. The high-precision anti-vibration drilling device for machining of an automobile water cooling plate according to claim 1, characterized in that, The wedge-shaped guide structure includes outer and inner guide rings arranged at the edges and the center of the auxiliary tool changing structure respectively, the inner guide ring is positioned on the column at the center of the auxiliary tool changing structure, and the outer and inner guide rings abut against the outer side and the inner side of the boss respectively.

7. The high-precision anti-vibration drilling device for machining of an automobile water cooling plate according to claim 6, characterized in that, The horizontal segment includes upper and lower stop point horizontal planes on the bottom surfaces of the outer and inner guide rings, and the wedge-shaped segment includes wedge-shaped guide surfaces connected to both ends of the upper and lower stop point horizontal planes.

8. The high-precision anti-vibration drilling device for machining of an automobile water cooling plate according to claim 7, characterized in that, The central horizontal plane is arranged in a part of the wedge-shaped guide surface.

9. The high-precision anti-vibration drilling device for machining of an automobile water cooling plate according to claim 6, characterized in that, The upper end of the second gear is connected to a connecting column, and the connecting column is rotatably connected to the column through a bearing connecting piece.

10. The high-precision anti-vibration drilling device for machining of an automobile water cooling plate according to claim 1, characterized in that, The shell is connected to a support, the support covers the first motor and is rotatably connected to a mounting frame, the mounting frame is connected to the position adjusting mechanism, and the output end of a third motor on the mounting frame is connected to the support.

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