An adjustable multi-cutting edge turning tool for machining energetic materials

Abstract

The present invention discloses an adjustable multi-cutting-edge turning tool for processing energetic materials, comprising a blade assembly and a shank assembly, wherein the shank assembly comprises a shank body, a sliding adjustment block, a locking screw and a clamping screw, and the blade assembly is composed of a plurality of arc blades; the end of the shank body is fan-shaped, and a plurality of slide grooves extending along the height direction of the shank body are provided at the end of the shank body, and a plurality of threaded holes matching with the locking screws are provided in the slide grooves, and the sliding adjustment block is slidably installed in the slide grooves and fixed by the locking screws, and arc blades are installed at the ends of the sliding adjustment block and the shank body by the clamping screws. The adjustable multi-cutting-edge turning tool for processing energetic materials of the present invention can realize the increase of the single cutting amount by increasing the number while ensuring the single edge back cutting amount of the arc blade, thereby improving the processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of energetic material turning tools, in particular to an adjustable multi-cutting edge turning tool for processing energetic materials. Background Art

[0002] Energetic materials are hard, brittle and viscoelastic at the same time, which makes their machining characteristics very different from conventional metal machining. Arc turning tools are a commonly used turning tool in energetic material machining, but safety, processing quality, tool parameters and other aspects limit tool parameters (such as back cutting amount, front and rear angles, etc.), which limits the processing efficiency. Currently, existing turning tools for energetic materials generally have problems such as low processing efficiency, non-adjustable tool position, and difficulty in replacing damaged blades. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and provide an adjustable multi-cutting edge turning tool for processing energetic materials, which can increase the single cutting amount by increasing the number while ensuring the single-edge back cutting amount of the arc blade, thereby improving the processing efficiency. At the same time, it ensures that the cutting parameters of the processing tool remain unchanged and does not cause a large change in the surface quality of the product. The cutting force is relatively dispersed and does not produce excessive changes. At the same time, the back cutting amount between different blades can be adjusted.

[0004] In order to achieve the above technical effects, the present invention adopts the following technical solutions:

[0005] An adjustable multi-cutting edge turning tool for processing energetic materials, comprising a blade assembly and a tool handle assembly, the tool handle assembly comprising a tool handle body, a sliding adjustment block, a locking screw and a clamping screw, the blade assembly consisting of a plurality of arc blades; the end of the tool handle body is fan-shaped, a plurality of slide grooves extending along the height direction of the tool handle body are opened at the end of the tool handle body, a plurality of threaded holes matching the locking screws are arranged in the slide grooves, the sliding adjustment block is slidably installed in the slide grooves and fixed by the locking screws, and arc blades are installed at the ends of the sliding adjustment block and the tool handle body by the clamping screws; wherein the specific number of arc blades can be set according to actual needs and specific conditions, and the setting principle is that the tool cutting force of the set number of arc blades cannot cause the processed product to have abnormal conditions such as overall fracture and surface cracks, nor can it cause the fixture clamping to fail, and at the same time, the arc blades can be reasonably arranged when the adjacent blades do not interfere with each other during installation, and the vertical relative position of the blades can be changed by adjusting the position of the sliding adjustment block in the vertical direction to meet different processing needs;

[0006] The adjustable multi-cutting edge turning tool for processing energetic materials of the present invention can simultaneously participate in cutting when processing the end face structure, and the back cutting amount of different blades can be adjusted. At the same time, the blade located on the far left of the tool handle body can complete the function of turning the outer circle and the outer surface, and the blade located on the far right of the tool handle body can also process the end face alone, and the middle blade is used to ensure a smooth transition when turning the end face.

[0007] Furthermore, it also includes a cooling pipe assembly, which includes a coolant interface, a main liquid pipe, a diversion device and a plurality of diversion pipes, one end of the main liquid pipe is connected to the coolant interface, and the other end of the main liquid pipe is connected to the diversion device, the diversion pipe is connected to the diversion device, and the flushing range of the diversion pipe is not less than the cutting range of the arc blade, ensuring that each blade can be fully flushed by the coolant to achieve the effect of cooling and removing chips.

[0008] Furthermore, the blade assembly includes three arc blades, namely a left blade, a middle blade and a right blade. The left blade is installed on the left side of the end of the handle body by a clamping screw. Two slide grooves are provided on the handle body, namely a middle slide groove and a right slide groove. The sliding adjustment block installed in the middle slide groove is the middle adjustment block, and the sliding adjustment block installed in the right slide groove is the right adjustment block. The middle blade is installed at the end of the middle adjustment block by a clamping screw, and the right blade is installed at the end of the right adjustment block by a clamping screw. The three replaceable arc blades are arranged in a straight line at a specific position, and different distances between two adjacent arc blades in the vertical direction can be set according to processing requirements, that is, the different back cutting amounts when different blades are cutting simultaneously are controlled, and the maximum can be adjusted to the maximum single-blade cutting amount allowed by energetic materials to meet different cutting requirements.

[0009] Furthermore, at least two locking screws are connected to the middle adjustment block and / or the right adjustment block, and the locking screws on the middle adjustment block are arranged horizontally, and the locking screws on the right adjustment block are arranged vertically.

[0010] Furthermore, the length of the middle chute is shorter than the length of the right chute.

[0011] Furthermore, when the middle adjustment block and the right adjustment block slide to the top of their corresponding slide grooves, the blade centers of the left blade, the middle blade and the right blade are on the same horizontal line, that is, when each blade is adjusted to the upper limit position, the triple maximum single-edge cutting depth allowed for the current energetic material can be achieved, and the back cutting depth of the three arc blades can be ensured to be the maximum allowable back cutting depth, thereby improving the end face processing efficiency while ensuring the processing quality.

[0012] Furthermore, the cooling pipe assembly includes three shunt pipes, namely a left shunt pipe, a middle shunt pipe and a right shunt pipe. The flushing port of the left shunt pipe faces the cutting edge of the left blade, the flushing port of the middle shunt pipe faces the cutting edge of the middle blade, and the flushing port of the right shunt pipe faces the cutting edge of the right blade. In practice, the specific number of shunt pipes is selected according to the installation space of the coolant system and the interface with the machine tool. If two pipes require a large coolant flow rate of the machine tool, then the two pipes can cover the cutting range of the three-arc blade. The three pipes do not have high requirements on the coolant flow rate of the machine tool. One pipe is for one blade, and the parts of the three blades involved in cutting are required to be fully flushed with coolant.

[0013] Furthermore, the diverter device is fixed to the upper part of the handle body.

[0014] Furthermore, an atomizing device is installed at the coolant interface to atomize the coolant or lubricating liquid to achieve the purpose of micro-cooling or micro-lubrication.

[0015] Furthermore, the horizontal interval between two adjacent arc blades is the same, and the vertical interval between them is adjustable.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The adjustable multi-cutting edge turning tool for processing energetic materials of the present invention can realize the simultaneous participation of multiple cutting edges of the multi-cutting edge turning tool in cutting without increasing the back cutting amount of the single edge and changing the range of the main and secondary deflection angles of the blade. When processing the end face, different back cutting amounts of multiple blades can be set according to the processing requirements. Among them, when each blade is adjusted to the maximum single-edge back cutting amount allowed by the energetic material, a single cutting can complete the processing amount of multiple cuttings in the past, greatly improving the processing efficiency, and the overall cutting efficiency of the end face can be improved by at least about 100% to 150%. At the same time, the adjustable multi-cutting edge turning tool for processing energetic materials of the present invention, each arc blade is non-standard customized, and the blade can be partially replaced or replaced as a whole according to the usage situation, which greatly reduces the use cost of the adjustable multi-cutting edge turning tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of an adjustable multi-cutting edge turning tool for machining energetic materials in a lower limit position according to an embodiment of the present invention.

[0019] Figure 2 is along Figure 1 Section view along line AA.

[0020] Figure 3 It is a schematic diagram of an adjustable multi-cutting edge turning tool for machining energetic materials in an upper limit position according to an embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of a cooling pipe assembly installed on an adjustable multi-cutting edge turning tool for machining energetic materials according to an embodiment of the present invention.

[0022] Figure markings: 1-left blade, 2-middle blade, 3-right blade, 4-handle body, 5-middle adjusting block, 6-right adjusting block, 7-locking screw, 8-pressing screw, 9-coolant interface, 10-main liquid pipe, 11-diverter device, 12-left diverter pipe, 13-middle diverter pipe, 14-right diverter pipe, 15-middle slide groove, 16-right slide groove. DETAILED DESCRIPTION

[0023] The present invention will be further described and illustrated below in conjunction with the embodiments of the present invention.

[0024] Example:

[0025] Embodiment 1:

[0026] like Figure 1 to Figure 3 As shown, an adjustable multi-cutting edge turning tool for processing energetic materials includes a blade assembly and a tool holder assembly.

[0027] Specifically, the handle assembly includes a handle body 4, a sliding adjustment block, a locking screw 7 and a clamping screw 8, and the blade assembly is composed of a plurality of arc blades.

[0028] The end of the handle body 4 is fan-shaped, and a plurality of slide grooves extending along the height direction of the handle body 4 are opened at the end of the handle body 4. A plurality of threaded holes matching with the locking screw 7 are provided in the slide groove. The sliding adjustment block is slidably installed in the slide groove and fixed by the locking screw 7. An arc blade is installed at the end of the sliding adjustment block and the end of the handle body 4 by a clamping screw 8.

[0029] In practice, the specific number of arc blades can be set according to actual needs and specific circumstances. The setting principle is that the tool cutting force of the set number of arc blades cannot cause the processed products to have abnormal conditions such as overall fracture, surface cracks, etc., nor can it cause the fixture clamping to fail. At the same time, the arc blades are reasonably arranged when installed without interference between adjacent blades. The horizontal intervals between two adjacent arc blades can be the same. In the vertical direction, the vertical relative position of the blade can be changed by adjusting the position of the sliding adjustment block to meet different processing needs.

[0030] Specifically, in this embodiment, an adjustable three-blade turning tool is taken as an example to illustrate the specific structure, that is, the blade assembly of this embodiment includes three arc blades, namely a left blade 1, a middle blade 2 and a right blade 3. The left blade 1 is installed on the left side of the end of the handle body 4 by a clamping screw 8. Two slide grooves are provided on the handle body 4, namely a middle slide groove 15 and a right slide groove 16. The sliding adjustment block installed in the middle slide groove 15 is the middle adjustment block 5, and the sliding adjustment block installed in the right slide groove 16 is the right adjustment block 6. The middle blade 2 is installed at the end of the middle adjustment block 5 by a clamping screw 8, and the right blade 3 is installed at the end of the right adjustment block 6 by a clamping screw 8.

[0031] Specifically, two locking screws 7 are connected to the middle adjustment block 5 and the right adjustment block 6, and the locking screws 7 on the middle adjustment block 5 are arranged horizontally, and the locking screws 7 on the right adjustment block 6 are arranged vertically. At the same time, in this embodiment, the length of the middle slide 15 is less than the length of the right slide 16.

[0032] The three replaceable arc blades are arranged in a straight line at a specific position. The adjacent arc blades in the vertical direction can be set at different distances according to the processing requirements, that is, the different back cutting amounts between different blades when cutting simultaneously are controlled. The maximum single-edge cutting amount allowed by energetic materials can be adjusted to meet different cutting requirements. Figure 1 The figure shows that when the middle adjustment block 5 and the right adjustment block 6 slide to the bottom of their corresponding slide slots, each blade is at the lower limit position. Figure 3 As shown, when the middle adjustment block 5 and the right adjustment block 6 are slid to the top of their corresponding slide grooves, the blade centers of the left blade 1, the middle blade 2 and the right blade 3 are on the same horizontal line, that is, when each blade is adjusted to the upper limit position, the three times maximum single-edge cutting depth allowed for the current energetic material can be achieved, and the back cutting depth of the three arc blades can be guaranteed to be the maximum allowable back cutting depth, thereby improving the end face processing efficiency while ensuring the processing quality.

[0033] like Figure 4 As shown, preferably, in this embodiment, a cooling pipeline assembly is further provided, and the cooling pipeline assembly includes a coolant interface 9, a main liquid pipe 10, a diverter device 11 and a plurality of diverter pipes, one end of the main liquid pipe 10 is connected to the coolant interface 9, and the other end of the main liquid pipe 10 is connected to the diverter device 11, and the diverter pipes are connected to the diverter device 11, and the flushing range of the diverter pipe is not less than the cutting range of the arc blade, ensuring that each blade can be fully flushed by the coolant to achieve the effect of cooling and removing chips.

[0034] In practice, the specific number of shunt pipes is selected according to the installation space of the coolant system and the interface with the machine tool. For example, if two pipelines require a large amount of coolant flow in the machine tool, then two pipelines can cover the cutting range of the three arc blades. Three pipelines do not require a high amount of coolant flow in the machine tool. One pipeline is for one blade, and the blades of the three blades involved in cutting are required to be fully flushed by the coolant. In this embodiment, the cooling pipeline assembly uses a one-point three-air path as a coolant pipeline to ensure that the coolant can fully flush the three blades, that is, the cooling pipeline assembly includes three shunt pipes, namely the left shunt pipe 12, the middle shunt pipe 13 and the right shunt pipe 14. The flushing port of the left shunt pipe 12 faces the cutting edge of the left blade 1, the flushing port of the middle shunt pipe 13 faces the cutting edge of the middle blade 2, and the flushing port of the right shunt pipe faces the cutting edge of the right blade 3. During cooling, the shunt device 11 can be used to divert a main coolant to the cutting area of ​​the three arc blades to achieve precise cooling.

[0035] Specifically, in this embodiment, the flow dividing device 11 is fixed to the upper part of the handle body 4. At the same time, an atomizing device is installed at the coolant interface 9 to atomize the coolant or lubricating liquid to achieve the purpose of micro-cooling or micro-lubrication.

[0036] In this embodiment, before actual use, the operator first confirms the vertical distribution distance of the three arc blades according to the processing requirements, and adjusts the vertical position of the middle blade 2 and the right blade 3 by adjusting the middle adjustment block 5 and the right adjustment block 6. After the adjustment, the adjustment block is locked and fixed in the slide groove with the locking screw 7, and then the three arc blades are installed according to the tool position. The arc blades are positioned with a conical back blade surface and tightened by the clamping screw 8, and then the tool handle body 4 is fixed on the tool seat. During installation, in order to make the end of the tool handle body 4 as parallel to the vertical direction of the machine tool (i.e., the Z direction) as possible, the straightness of the end of the tool handle can be adjusted to be parallel to the Z direction of the machine tool by using a dial indicator.

[0037] Then you can try to process the end face of the product, and adjust the front and rear direction (i.e. Y direction) of the tool to make the tool pass the center, ensure that the plane where the three circular cutting edges of the multi-cutting edge turning tool are located coincides with the Y0 plane of the machine tool, and then build the corresponding coolant pipeline system according to the specific situation of the machine tool coolant system. You can use a two-pipeline or three-pipeline coolant system, such as Figure 4 As shown, this embodiment adopts a three-pipeline coolant system to ensure that the three arc blades can be fully flushed and cooled.

[0038] After completing the above operations, the entire turning tool installation is completed. In the turning tool of this embodiment, when the three-arc blade adopts a similar Figure 1 When the oblique line is evenly distributed, the tool trajectory can be controlled when processing the end face structure to ensure that the feed tool path distance between the adjacent two end faces is the designed cutting amount of each blade back. When the arc blade is adjusted to Figure 3 The upper limit position shown can achieve the maximum cutting depth of three times the single-edge allowed by the current energetic material, which can ensure that the back cutting depth of the three arc blades is the maximum allowable back cutting depth, thereby improving the end face processing efficiency while ensuring the processing quality. At the same time, when processing external cylindrical structures and profile structures, the left blade 1 can also complete the corresponding function.

[0039] The cutting force of energetic materials during cutting is significantly lower than that of metal materials during machining, and is also much lower than the clamping force of energetic materials during clamping. Therefore, the present invention discloses a multi-cutting edge turning tool. Even if the number of blades is increased, its total cutting force is lower than that of metal materials during machining, and its clamping force is also safe. Before installing the tool, adjust the relative position of the middle blade 2 and the right blade 3 according to the needs, and tighten them with the clamping screw 8; when installing the tool, first align the straight end of the handle body 4 to make the handle body 4 parallel to the Z direction of the machine tool, fix the tool cutting parameters, and ensure that each circle The front and rear angles and the main and secondary rake angle ranges of the arc blade are the same as those of the original single blade when used alone, ensuring that the cutting quality of energetic materials does not change much compared with previous cutting processes. At the same time, the adjustable multi-cutting edge turning tool for processing energetic materials of the present invention can simultaneously participate in cutting when processing the end face structure, and the back cutting amount of different blades can be adjusted. At the same time, the blade located on the far left of the handle body 4 can complete the function of turning the outer circle and the outer surface, and the blade located on the far right of the handle body 4 can also perform end face processing alone, and the middle blade is used to ensure a smooth transition when turning the end face.

[0040] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. An adjustable multi-cutting edge turning tool for machining energetic materials, characterized in that: It includes a blade assembly and a handle assembly, wherein the handle assembly includes a handle body, a sliding adjustment block, a locking screw and a clamping screw, and the blade assembly is composed of a plurality of arc blades; The end of the handle body is fan-shaped, and a plurality of slide grooves extending along the height direction of the handle body are provided at the end of the handle body, and a plurality of threaded holes matching with the locking screws are provided in the slide grooves, and the sliding adjustment block is slidably installed in the slide grooves and fixed by the locking screws, and arc blades are installed at the ends of the sliding adjustment block and the handle body by means of clamping screws; It also includes a cooling pipeline assembly, which includes a coolant interface, a main liquid pipe, a shunt device and a plurality of shunt pipes, one end of the main liquid pipe is connected to the coolant interface, the other end of the main liquid pipe is connected to the shunt device, the shunt pipe is connected to the shunt device, and the flushing range of the shunt pipe is not less than the cutting range of the arc blade; The blade assembly includes three arc blades, namely a left blade, a middle blade and a right blade. The left blade is installed on the left side of the end of the handle body by a clamping screw. Two slide grooves are provided on the handle body, namely a middle slide groove and a right slide groove. The sliding adjustment block installed in the middle slide groove is the middle adjustment block, and the sliding adjustment block installed in the right slide groove is the right adjustment block. The middle blade is installed on the end of the middle adjustment block by a clamping screw, and the right blade is installed on the end of the right adjustment block by a clamping screw. At least two locking screws are connected to the middle adjustment block and / or the right adjustment block, and the locking screws on the middle adjustment block are arranged horizontally, and the locking screws on the right adjustment block are arranged vertically; The length of the middle chute is shorter than that of the right chute; When the middle adjustment block and the right adjustment block slide to the top of their corresponding slide slots, the blade centers of the left blade, the middle blade and the right blade are on the same horizontal line; Under the premise of not increasing the back cutting depth of a single edge and not changing the range of the main and secondary rake angles of the insert, multiple cutting edges of a multi-cutting edge turning tool are simultaneously involved in cutting, and different back cutting depths of multiple inserts are set according to processing requirements when processing the end face.

2. An adjustable multi-cutting edge turning tool for machining energetic materials according to claim 1, characterized in that: The cooling pipeline assembly includes three shunt pipes, namely a left shunt pipe, a middle shunt pipe and a right shunt pipe. The flushing port of the left shunt pipe faces the cutting edge of the left blade, the flushing port of the middle shunt pipe faces the cutting edge of the middle blade, and the flushing port of the right shunt pipe faces the cutting edge of the right blade.

3. The adjustable multi-cutting edge turning tool for machining energetic materials according to claim 1, characterized in that: The flow dividing device is fixed on the upper part of the handle body.

4. The adjustable multi-cutting edge turning tool for machining energetic materials according to claim 1, characterized in that: An atomizing device is installed at the coolant interface.

5. An adjustable multi-cutting edge turning tool for machining energetic materials according to any one of claims 1 to 4, characterized in that: The horizontal intervals between two adjacent arc blades are the same.

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