Machining tool
By designing a machining tool that includes a tool holder, tool base, tap, front tool assembly, and rear tool, continuous operation of multiple processes is achieved, solving the problems of low machining efficiency and poor precision of aluminum alloy die castings, improving machining efficiency and precision, and meeting the needs of large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEW AMERIOCEAN TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-16
AI Technical Summary
The processing of aluminum alloy die castings is subject to problems such as flash, burrs and uneven machining allowance, resulting in low processing efficiency and poor precision. Frequent tool changes also reduce equipment uptime and positioning errors, making it difficult to meet the needs of large-scale production.
Design a machining tool including a tool holder, tool base, tap, front tool assembly and rear tool. Through detachable connection and hierarchical arrangement, it can realize continuous operation of multiple processes, avoid repeated tool changes, and improve machining efficiency and accuracy.
By completing multiple processes at once, downtime for tool changes is reduced, processing efficiency is improved, positioning errors are reduced, processing accuracy is increased, and the needs of mass production are met.
Smart Images
Figure CN224359467U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of machining tool technology, and specifically relates to a machining tool. Background Technology
[0002] In the production of aluminum alloy die-cast parts, after the product is formed by the die-casting mold, the surface of the semi-finished die-cast part will have problems such as flash, burrs, and uneven machining allowance due to the limited draft angle design of the die-casting mold. These issues require multiple CNC machining processes for finishing. In existing technologies, processes such as milling studs, tapping internal threads, and chamfering / deburring typically rely on multiple single-function tools to complete the process step by step. Each time a dedicated tool is changed, the tool position and machining parameters need to be recalibrated. Multiple processes require repeated workpiece clamping and tool changes, significantly increasing the machining time for a single product. Especially in mass production scenarios, frequent tool changes lead to reduced equipment uptime, making it difficult to meet the demands of large-scale production. Furthermore, multiple tool changes and repetitive positioning operations can easily introduce positioning errors, and differences in wear between different tools can also cause fluctuations in machining dimensions, affecting product yield and increasing manufacturing costs.
[0003] Therefore, it is necessary to provide a new technical solution to solve the above-mentioned technical problems. Utility Model Content
[0004] The technical problem to be solved by this utility model is the problem of low processing efficiency and poor processing accuracy.
[0005] To solve the above-mentioned technical problems, this utility model provides a machining tool, which includes a tool holder with a mounting cavity, a tool holder with a mounting groove, a tap rod, a front tool assembly, and a rear tool. The tool holder is connected to the tool holder, and the mounting cavity communicates with the tool holder. One end of the tap rod is disposed in the mounting cavity and detachably connected to the tool holder, and the other end of the tap rod passes through the mounting groove, with at least a portion of the other end of the tap rod located outside the mounting groove. The front tool assembly is detachably connected to the tool holder and is located outside the mounting groove. The rear tool is fixedly connected to the tool holder and is located in the mounting groove, with the rear tool and the other end of the tap rod arranged at a distance.
[0006] Optionally, the tool holder is provided with a through hole, which communicates with the mounting cavity; the machining tool further includes a first fastener, which passes through the through hole and is connected to one end of the tap rod.
[0007] Optionally, an oil inlet channel is provided in the tool holder, and the oil inlet channel communicates with the mounting groove.
[0008] Optionally, an air inlet channel is provided in the tool holder, and the air inlet channel communicates with the mounting groove.
[0009] Optionally, the other end of the tap is located between the oil inlet channel and the air inlet channel.
[0010] Optionally, the front blade assembly includes a second fastener and a front blade, the second fastener passing through the front blade and connected to the blade holder, the front blade being locked to the blade holder by the second fastener.
[0011] Optionally, the tool holder includes a bottom housing connected to the tool bar, a side housing connected to the bottom housing, a front tool assembly and a rear tool respectively connected to the side housing, the front tool assembly and the rear tool arranged sequentially along a direction close to the bottom housing, the bottom housing and the side housing enclosing the mounting groove, and the second fastener penetrating the front tool and connecting to the side housing.
[0012] Optionally, the side housing is in the shape of an annular sleeve, and the other end of the tap is located at the center of the side housing.
[0013] Optionally, there are multiple front cutter assemblies, which are arranged at equal intervals around the other end of the tap rod; there are also multiple rear cutters, which are arranged at equal intervals around the other end of the tap rod.
[0014] Optionally, the machining tool further includes a tool holder, which is connected to the tool bar and is coaxial with the tool bar.
[0015] Beneficial effects:
[0016] This utility model provides a machining tool, which is connected to a tool holder via a tool holder. The mounting groove of the tool holder and the mounting cavity of the tool holder are interconnected. One end of the tap is located inside the mounting cavity and is detachably connected to the tool holder. The other end of the tap passes through the mounting groove, with at least a portion of the other end located outside the mounting groove. The front tool assembly is detachably connected to the tool holder and is located outside the mounting groove. The rear tool is fixedly connected to the tool holder and is located inside the mounting groove, with the rear tool spaced apart from the other end of the tap. This detachable connection between the tap and the tool holder facilitates quick and independent replacement of the tap or the front tool assembly, reducing downtime for tool changes. The rear tool, fixed in the mounting groove and spaced apart from the tap, creates a tiered machining path. Furthermore, integrating the tap, front tool assembly, and rear tool into a single unit allows multiple processes to be completed at once, avoiding repeated tool changes, saving machining time, and improving efficiency. The fixed positions of the tap, front tool assembly, and rear tool also reduce cumulative positioning errors, contributing to improved machining accuracy. This achieves the technical effect of improving processing efficiency and enhancing processing accuracy. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of a machining tool provided in an embodiment of the present utility model.
[0019] Figure 2 This is a schematic diagram of the structure of a tool holder and front tool assembly in a machining tool according to an embodiment of the present utility model.
[0020] Figure 3 This is a schematic diagram of the structure of a tap rod in a machining tool provided in an embodiment of the present utility model.
[0021] Figure 4 This is a structural schematic diagram of a machining tool in the state before machining a die-cast part, as provided in an embodiment of the present utility model.
[0022] Figure 5 This is a schematic diagram of the structure of a die-cast part in a machining tool after machining, as provided in an embodiment of the present utility model.
[0023] The meanings of the labels in the attached diagram are as follows:
[0024] 1—Tool holder, 11—Mounting cavity, 12—Through hole; 2—Tool holder, 21—Mounting groove, 22—Oil inlet channel, 23—Air inlet channel, 24—Bottom housing, 25—Side housing; 3—Tapping rod; 4—Front tool assembly, 41—Second fastener, 42—Front insert; 5—Rear tool; 6—First fastener; 7—Tool shank; 8—Die casting, 81—Stud, 82—Chamfer, 83—Outer wall, 84—Thread. Detailed Implementation
[0025] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0026] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0027] In the embodiments of this application, "at least one" refers to one or more; "multiple" refers to two or more. In the description of this application, the terms "first," "second," "third," etc., are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.
[0028] In this specification, references such as "one embodiment" or "some embodiments" mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, the terms "comprising," "including," "having," and variations thereof in this specification all mean "including but not limited to," unless otherwise specifically emphasized. It should be noted that in the embodiments of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.
[0029] It should be noted that, in the embodiments of this utility model, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. Furthermore, in the embodiments of this application, "connection" can also be understood as an electrical connection; the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this utility model are for illustrative purposes only and are not intended to limit the utility model.
[0030] This utility model provides a machining tool, please refer to [link to relevant documentation]. Figures 1 to 5 As shown, Figure 1 This is a schematic diagram of the structure of a machining tool provided in an embodiment of this utility model. Figure 2This is a schematic diagram of the structure of the tool holder and the front tool assembly in a machining tool according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the structure of a tap rod in a machining tool according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of a die-cast part in a machining tool before machining, provided by an embodiment of this utility model. Figure 5 This is a structural schematic diagram of the die-cast part after machining, according to an embodiment of the present invention. The machining tool provided in this embodiment includes a tool holder 1, a tool holder 2, a tap spool 3, a front tool assembly 4, and a rear tool 5. The tool holder 1 has a mounting cavity 11, and the tool holder 2 has a mounting groove 21. The tool holder 2 is connected to the tool holder 1, and the mounting cavities 11 are interconnected. One end of the tap spool 3 is disposed inside the mounting cavity 11 and is detachably connected to the tool holder 1. The other end of the tap spool 3 passes through the mounting groove 21, and at least partially lies outside the mounting groove 21. The front tool assembly 4 is detachably connected to the tool holder 2 and is located outside the mounting groove 21. The rear tool 5 is fixedly connected to the tool holder 2 and is located inside the mounting groove 21. The rear tool 5 is spaced apart from the other end of the tap spool 3.
[0031] The mounting cavity 11 has a space inside to accommodate one end of the tap shank 3, which can be inserted into the mounting cavity 11. The tool holder 1 can be a cylindrical structure with an axial mounting cavity 11 inside, which can extend through the entire length of the tool holder 1. The tool holder 2 is fixed to one end of the tool holder 1. The tool holder 2 and the tool holder 1 can be integrally formed, or the tool holder 2 and the tool holder 1 can be detachably assembled by means of a threaded connection 84.
[0032] The other end of the tap shank 3 can pass through the mounting groove 21 of the tool holder 2 along the axial direction of the tool holder 1 and extend beyond the opening of the mounting groove 21, allowing effective contact with the workpiece surface during machining. For example, the other end of the tap shank 3 can be magnetically connected to the tool holder 1. The back cutter 5 can be an integral cutter body, and the back cutter 5 can be fixedly connected to the tool holder 2 by welding, permanently embedded inside the mounting groove 21. Through the tap shank 3, the front cutter assembly 4, and the back cutter 5, multiple continuous operations such as screw hole machining, chamfering, and deburring can be performed on the die-cast part 8.
[0033] During operation, the cutting tool can be mounted on the machine tool and contact the surface of the die-cast part 8. The tap shank 3 will first contact the workpiece to tap or drill, while the front tool assembly 4 will chamfer or cut burrs on the outside. Then, the rear tool 5 will perform secondary finishing in the groove, such as removing burrs after tapping or forming chamfers. The three-stage action will be completed in a single pass without the need for intermediate tool changes.
[0034] In this embodiment, the tool holder 2 is connected to the tool shank 1. The mounting groove 21 of the tool holder 2 is interconnected with the mounting cavity 11 of the tool shank 1. One end of the tap rod 3 is located inside the mounting cavity 11 and is detachably connected to the tool shank 1. The other end of the tap rod 3 passes through the mounting groove 21, and at least partially lies outside the mounting groove 21. The front tool assembly 4 is detachably connected to the tool holder 2 and is located outside the mounting groove 21. The rear tool 5 is fixedly connected to the tool holder 2 and is located inside the mounting groove 21. The rear tool 5 is spaced apart from the other end of the tap rod 3. This detachable connection between the tap rod 3 and the tool shank 1 facilitates quick and independent replacement of the tap rod 3 or the front tool assembly 4, reducing downtime for tool changes. The rear tool 5, fixed in the mounting groove 21 and spaced apart from the tap rod 3, forms a graded machining path. Simultaneously integrating the tap spool 3, the front cutter assembly 4, and the rear cutter 5 into a single unit allows for the completion of multiple processes in one operation, avoiding repeated tool changes, saving processing time, and improving processing efficiency. Furthermore, the fixed positions of the tap spool 3, the front cutter assembly 4, and the rear cutter 5 reduce accumulated positioning errors, contributing to improved machining accuracy. This achieves the technical effect of improving both processing efficiency and machining accuracy.
[0035] In one embodiment, a through hole 12 is provided on the tool holder 1, and the through hole 12 communicates with the mounting cavity 11. The machining tool provided in this embodiment also includes a first fastener 6, which passes through the through hole 12 and connects to one end of the tap rod 3. The first fastener 6 includes a bolt, which passes sequentially through the through hole 12 of the tool holder 1 and the locking hole on the tap rod 3, and the tap rod 3 is axially fixed by threaded engagement 84. When the tap rod 3 needs to be replaced, only a single bolt needs to be removed to pull out the tap rod 3. The combination of the through hole 12 and the first fastener 6 forms a quick-disassembly structure, allowing the tap rod 3 to be replaced independently.
[0036] In some embodiments, an oil inlet channel 22 is provided on the tool holder 2, and the oil inlet channel 22 is interconnected with the mounting groove 21. The inlet of the oil inlet channel 22 is located at the outer edge of the tool holder 2, and the outlet of the oil inlet channel 22 is connected to the interior of the mounting groove 21. The oil inlet channel 22 is connected to an external coolant supply system, and the coolant is sprayed through the channel to the machining area of the tap shank 3 and the back cutter 5 in the mounting groove 21, or the coverage area can extend through the entire length of the tap shank 3. The oil inlet channel 22 directly delivers coolant to the high-temperature machining area, which helps to suppress tool thermal deformation and flush away aluminum chips.
[0037] In some embodiments, an air inlet channel 23 is provided on the tool holder 2, and the air inlet channel 23 is interconnected with the mounting groove 21. The air inlet channel 23 is connected to an external compressed air source, and the gas outlet of the air inlet channel 23 is located inside the mounting groove 21. The jet direction of the air inlet channel 23 can also form a certain angle with the axis of the tap rod 3, forming a vortex airflow. The directional airflow generated by the air inlet channel 23 can accelerate the evaporation and heat dissipation of the coolant, and blow away residual debris, reducing dimensional deviations caused by thermal expansion.
[0038] In some embodiments, the other end of the tap 3 is located between the oil inlet channel 22 and the air inlet channel 23. The centrally positioned tap 3 allows the coolant and airflow to evenly cover the machining area, improving the cooling coverage and airflow debris removal rate.
[0039] In some embodiments, the front blade assembly 4 includes a second fastener 41 and a front blade 42. The second fastener 41 passes through the front blade 42 and connects to the blade holder 2. The front blade 42 is locked to the blade holder 2 by the second fastener 41. The second fastener 41 includes a bolt. The second fastener 41 allows the front blade 42 to be replaced independently, avoiding the disassembly of the entire blade holder 2, and maintaining the fixed relative position of the front blade 42 and the rear blade 5.
[0040] In some embodiments, the tool holder 2 includes a bottom housing 24 and a side housing 25. The bottom housing 24 is connected to the tool holder 1, and the side housing 25 is connected to the bottom housing 24. The front tool assembly 4 and the rear tool 5 are respectively connected to the side housing 25. The front tool assembly 4 and the rear tool 5 are arranged sequentially along the direction close to the bottom housing 24. The bottom housing 24 and the side housing 25 enclose the mounting groove 21. The second fastener 41 passes through the front blade 42 and is connected to the housing. The front blade 42 is directly fastened to the side housing 25 by the second fastener 41 and is located at the outlet of the mounting groove 21. The rear tool 5 can be fixed to the inner wall of the side housing 25 by brazing. The rear tool 5 is located behind the front blade 42 along the axial direction, which can form an axially graded layout.
[0041] In some embodiments, the side housing 25 is shaped like an annular sleeve, with the other end of the tap shank 3 located at the center of the side housing 25. The working end of the tap shank 3 extends vertically from the center of the sleeve, and the center of the side housing 25 refers to the center of the circular inner wall of the side housing 25. Having the other end of the tap shank 3 located at the center of the side housing 25 eliminates radial runout. This reduces the tapping trajectory deviation of the tap shank 3 when machining the aluminum alloy die-cast part 8.
[0042] In some embodiments, there are multiple front cutter assemblies 4, such as three, arranged at equal intervals around the other end of the tap rod 3. Similarly, there are multiple rear cutter assemblies 5, such as four, arranged at equal intervals around the other end of the tap rod 3. This multi-cutter, equally spaced layout balances the cutting force and reduces vibration amplitude.
[0043] In some embodiments, the machining tool provided by this utility model further includes a tool holder 7, which is connected to a tool shank 1 and is coaxial with the tool shank 1. The tool holder 7 can be connected to the tail end of the tool shank 1 via an interference fit.
[0044] In some implementations, please refer to [link / reference]. Figure 4 and Figure 5 As shown, the above-mentioned machining tools can be used to... Figure 4 The 81 center stud is machined into Figure 5 The shape is such that the stud 81 is machined by the aforementioned tap 3, and a thread 84 is formed on the stud 81 by tapping. The outer wall 83 of the stud 81 is milled at a draft angle of 5° using the front cutting tool 42 of the aforementioned front cutting tool assembly 4, so that the conical outer wall 83 is machined into a cylindrical outer wall 83. The stud 81 is machined by the aforementioned rear cutting tool 5, forming a thread 84 on the stud 81. Figure 5 The chamfer shown is 82.
[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0046] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A machining tool, characterized in that, The machining tool includes a tool holder with a mounting cavity, a tool holder with a mounting groove, a tap, a front tool assembly, and a rear tool. The tool holder is connected to the tool holder, and the mounting cavity communicates with the tool holder. One end of the tap is disposed in the mounting cavity and detachably connected to the tool holder, and the other end of the tap passes through the mounting groove, with at least a portion of the other end of the tap located outside the mounting groove. The front tool assembly is detachably connected to the tool holder and is located outside the mounting groove. The rear tool is fixedly connected to the tool holder and is located in the mounting groove, with the rear tool spaced apart from the other end of the tap.
2. The machining tool according to claim 1, characterized in that, The tool holder is provided with a through hole, which communicates with the mounting cavity; the machining tool also includes a first fastener, which passes through the through hole and is connected to one end of the tap rod.
3. The machining tool according to claim 1, characterized in that, The tool holder is provided with an oil inlet channel, which is connected to the mounting groove.
4. The machining tool according to claim 3, characterized in that, An air inlet channel is provided on the tool holder, and the air inlet channel is connected to the mounting groove.
5. The machining tool according to claim 4, characterized in that, The other end of the tap is located between the oil inlet channel and the air inlet channel.
6. The machining tool according to claim 1, characterized in that, The front blade assembly includes a second fastener and a front blade. The second fastener passes through the front blade and connects to the blade holder. The front blade is locked to the blade holder by the second fastener.
7. The machining tool according to claim 6, characterized in that, The tool holder includes a bottom housing connected to the tool bar, a side housing connected to the bottom housing, a front tool assembly and a rear tool respectively connected to the side housing, the front tool assembly and the rear tool are arranged sequentially along the direction close to the bottom housing, the bottom housing and the side housing surround the mounting groove, and the second fastener passes through the front tool and connects to the side housing.
8. The machining tool according to claim 7, characterized in that, The side housing is in the shape of an annular sleeve, and the other end of the tap is located at the center of the side housing.
9. The machining tool according to claim 1, characterized in that, The number of front cutter assemblies is multiple, and the multiple front cutter assemblies are arranged at equal intervals around the other end of the tap rod; the number of rear cutters is multiple, and the multiple rear cutters are arranged at equal intervals around the other end of the tap rod.
10. The machining tool according to claim 1, characterized in that, The machining tool also includes a tool holder, which is connected to the tool bar and is coaxial with the tool bar.