Eccentric adjustable cutter

Abstract

The utility model relates to an eccentric adjustable cutter which comprises a cutter handle used for being connected with a main shaft of a machining center, direction key grooves are formed in the cutter handle, and an XY rectangular coordinate system is constructed through the direction key grooves; the number of the cutter bodies is at least one, one end of each cutter body is connected with the cutter handle, the end, away from the cutter handle, of each cutter body is connected with a cutting edge, and the connecting line of the cutting edges and the center of the cutter handle and the Y axis in the XY rectangular coordinate system are eccentrically arranged. According to the eccentric adjustable cutter, the cutting edge is eccentrically arranged, the cutter tip can be separated from the surface of a workpiece, a machine tool can return at the fastest speed, rapid cutter retracting is achieved, the machining efficiency is improved, the cutter is infinitely close to the actual machining value in the manufacturing process, and therefore the product size debugging difficulty of the technology can be greatly reduced in the debugging process; the aperture size can be finely adjusted and the height of the blade can be adjusted through the arranged pushing screw, so that main shaft jumping is compensated, and the problem of poor aperture and roundness of a product caused by slight main shaft jumping is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining cutters, in particular to an eccentric adjustable cutter. Background Art

[0002] CNC milling machine, also known as machining center, is a CNC machine tool with powerful machining functions. The rapidly developing machining centers and flexible machining units are all based on CNC milling machines and CNC boring machines, and both are inseparable from milling methods.

[0003] At present, when machining large-diameter deep holes in machining centers on the market, the processing technology for products with large-diameter hole depth requirements generally uses a boring tool to bore the inner circle or a multi-tooth reamer to ream the inner circle. However, both methods have certain defects:

[0004] 1. Boring the inner circle with a boring tool can meet the requirements of the outer diameter of the cylinder and the cylindricality and smoothness, but the processing size is unstable and the efficiency is slow;

[0005] 2. Using a multi-tooth reamer to ream the inner circle can meet the requirements of the cylindrical outer diameter and the cylindrical finish, and can also meet the requirements of high-speed processing. However, the reamer size cannot be adjusted, and the tool size manufacturing requirements are strict. The machine tool spindle accuracy and tool magazine volume requirements are relatively strict. It is difficult to debug the product's outer diameter of the grade 1 in one step, and the tool needs to be continuously sharpened to compensate for the spindle accuracy problem. At the same time, due to the machine tool accuracy problem, it will also lead to problems such as low tool life and low tool retraction speed. Utility Model Content

[0006] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the internal circle boring of the boring tool or the internal circle reaming of the multi-tooth reamer in the prior art is difficult to meet the requirements of large-diameter deep hole processing.

[0007] In order to solve the above technical problems, the utility model provides an eccentric adjustable tool, including a tool handle, which is used to be connected to the spindle of a machining center, and the tool handle is provided with a directional keyway, and an XY rectangular coordinate system is constructed with the directional keyway; a tool body, which is provided with at least one, and one end of the tool body is connected to the tool handle, and a blade is connected to the end of the tool body away from the tool handle, and the blade is eccentrically arranged between the line connecting the center of the tool handle and the Y axis in the XY rectangular coordinate system.

[0008] In one embodiment of the present invention, the angle between the line connecting the blade and the center of the handle and the Y axis in the XY rectangular coordinate system is 5°.

[0009] In one embodiment of the utility model, a U-shaped groove is provided at one end of the knife body away from the knife handle, and the bottom of the U-shaped groove is configured as a circular groove.

[0010] In an embodiment of the present invention, the two inner walls of the U-shaped groove are respectively a first plane and a second plane, and the first plane is on the same side as the blade.

[0011] In one embodiment of the utility model, a pushing screw and a locking screw are provided at the end of the knife body away from the knife handle, the end of the pushing screw away from the head passes through the U-shaped slot, and the end surface of the pushing screw away from the head abuts against the second plane, and the locking screw passes through the U-shaped slot and locks the knife body part where the second plane is located.

[0012] In one embodiment of the utility model, the U-shaped groove divides the blade into blade body one and blade body two, the blade body one is the part away from the blade handle, the blade body two is the part connected to the blade handle, and the blade is arranged on the end of the blade body one away from the blade body two.

[0013] In an embodiment of the present invention, the ejector screw is arranged on the cutter body.

[0014] In one embodiment of the utility model, one end of the locking screw head is arranged on the first blade body, and one end of the locking screw stud passes through the U-shaped slot and is locked with the second blade body.

[0015] In an embodiment of the present invention, the locking screw is a countersunk screw.

[0016] In one embodiment of the utility model, the knife handle is a cylindrical rod, and two knife bodies are provided on the same radial section of the knife handle, the two knife bodies are respectively located on both sides of the knife handle axis, and the two knife bodies are relatively staggered.

[0017] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0018] The eccentric adjustable tool described in the utility model can be set eccentrically by the blade, so that the tip of the tool can be separated from the workpiece surface, and the machine tool can return at the fastest speed to achieve rapid tool retraction and improve processing efficiency. When the tool is manufactured, it is infinitely close to the actual processing value, so during debugging, the difficulty of technical debugging of product size can be greatly reduced; the aperture size can be fine-tuned by setting the push screw, and the blade height can be adjusted to compensate for the spindle runout, thereby solving the problem of poor product aperture and roundness caused by slight spindle runout. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0020] Figure 1The structure of the eccentric adjustable tool in the preferred embodiment of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 A bottom view of an eccentric adjustable tool in a preferred embodiment of the utility model;

[0022] Figure 3 The structure of the eccentric adjustable tool in the preferred embodiment of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 4 The structure of the knife body in the preferred embodiment of the utility model is shown in FIG. Figure 1 ;

[0024] Figure 5 The structure of the knife body in the preferred embodiment of the utility model is shown in FIG. Figure 2 ;

[0025] Figure 6 It is a perspective view of an eccentric adjustable cutter in a preferred embodiment of the utility model.

[0026] Explanation of the reference numerals in the specification: tool handle 1, direction key slot 11, injection channel 12, tool body 2, U-shaped slot 21, first plane 211, second plane 212, tool body one 213, tool body two 214, threaded hole 2141, liquid outlet hole 2142, chip outlet surface 2143, circular slot 22, blade 3, push screw 4, locking screw 5. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0028] Reference Figure 1-4 As shown, the eccentric adjustable tool of the utility model comprises: a tool handle 1, which is used to connect with the main shaft of the machining center, and the tool handle 1 is provided with a direction keyway 11, and the direction keyway 11 is used to construct an XY rectangular coordinate system; a tool body 2, which is provided with at least one, and one end of the tool body 2 is connected to the tool handle 1, and the end of the tool body 2 away from the tool handle 1 is connected with a blade 3, and the line connecting the blade 3 and the center of the tool handle 1 is eccentrically arranged between the Y axis in the XY rectangular coordinate system. The establishment of the XY rectangular coordinate system is as follows Figure 2 The angle between the line connecting the blade 3 and the center of the handle 1 and the Y axis in the XY rectangular coordinate system is 5°.

[0029] In the above structure, the end of the cutter body 2 away from the handle 1 is provided with a U-shaped slot 21, and the bottom of the U-shaped slot 21 is provided with a circular slot 22. With the machine tool spindle direction as the vertical direction, the U-shaped slot 21 is provided in the vertical direction, and one end of the U-shaped slot 21 is located on one side of the cutter body 2, and then extends toward the inside of the cutter body 2, forming a circular slot 22 inside the cutter body 2. Thus, a part of the front end of the cutter body 2 is separated, and the blade 3 is provided on the front end of the cutter body 2.

[0030] Reference Figure 5 As shown, the two inner walls of the U-shaped slot 21 are respectively a first plane 211 and a second plane 212, and the first plane 211 is on the same side as the blade 3. The end of the knife body 2 away from the knife handle 1 is provided with a push screw 4 and a locking screw 5. The end of the push screw 4 away from the head passes through the U-shaped slot 21, and the end surface of the push screw 4 away from the head abuts against the second plane 212. The locking screw 5 passes through the U-shaped slot 21 and is locked with the portion of the knife body 2 where the second plane 212 is located. A threaded hole and a through hole are provided on the knife body 2. The push screw 4 is threadedly connected to the threaded hole. The knob push screw 4 can adjust the position of the push screw 4 on the knife body 2, thereby adjusting the push screw 4 and the first plane 211 to achieve push. The locking screw 5 passes through the through hole and the U-shaped slot 21 and is connected to the knife body 2.

[0031] The blade 2 is divided into a blade body 1 213 and a blade body 2 214 by the U-shaped slot 21, wherein the blade body 1 213 is a portion away from the blade handle 1, and the blade body 2 214 is a portion connected to the blade handle 1. The blade 3 is arranged on the end of the blade body 1 213 away from the blade body 2 214. The thrust screw 4 is arranged on the blade body 1 213. One end of the head of the locking screw 5 is arranged on the blade body 1 213, and one end of the stud of the locking screw 5 penetrates the U-shaped slot 21 and is locked with the blade body 2 214. The locking screw 5 is a countersunk screw. The blade body 2 214 is provided with a threaded hole 2141, and the locking screw 5 is threadedly connected with the threaded hole 2141.

[0032] The push screw 4 and the locking screw 5 constitute an adjustment mechanism. The push screw 4 and the locking screw 5 are located on the same side of the circular groove 22. The circular groove 22 is the support point of the adjustment mechanism. The push screw 4 is located on the side of the locking screw 5 away from the circular groove 22. By rotating the push screw 4, the push screw 4 pushes the second plane 212, thereby pushing the blade body 1 213 away from the blade body 2 214, so that the blade 3 expands outward, so that the processing of the blade 3 directly becomes larger. When the blade 3 reaches the specified position, the locking screw 5 is locked with the blade body 2 214, thereby fixing the blade 3, that is, fixing the adjustment mechanism.

[0033] In the above structure, the handle 1 is a cylindrical rod, and two blades 2 are provided on the same radial section of the handle 1. The two blades 2 are respectively located on both sides of the axis of the handle 1, and the two blades 2 are relatively staggered.

[0034] Reference Figure 6 As shown, the center of the tool handle 1 is provided with an injection channel 12, the interior of the tool body 214 is provided with a liquid outlet 2142, the outer wall of the tool body 214 is provided with a chip discharge surface 2143, the liquid outlet 2142 is inclined, one end of the liquid outlet 2142 is connected to the injection channel 12, and the other end of the liquid outlet 2142 extends to the chip discharge surface 2143, and the processing position is cooled during the processing through the injection channel 12 and the liquid outlet 2142.

[0035] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. An eccentric adjustable tool, characterized in that: include, A tool handle, which is used to connect to the spindle of the machining center, and the tool handle is provided with a direction keyway, and the direction keyway is used to construct an XY rectangular coordinate system; The knife body is provided with at least one, and one end of the knife body is connected to the knife handle, the end of the knife body away from the knife handle is connected to the blade, and the connecting line between the blade and the center of the knife handle is eccentrically arranged between the Y axis in the XY rectangular coordinate system.

2. The eccentric adjustable tool according to claim 1, characterized in that: The angle between the line connecting the blade and the center of the handle and the Y axis in the XY rectangular coordinate system is 5°.

3. The eccentric adjustable tool according to claim 1, characterized in that: A U-shaped groove is arranged at one end of the knife body away from the knife handle, and the bottom of the U-shaped groove is arranged as a circular groove.

4. The eccentric adjustable tool according to claim 3, characterized in that: The two inner walls of the U-shaped groove are respectively a first plane and a second plane, and the first plane is on the same side as the blade.

5. The eccentric adjustable tool according to claim 4, characterized in that: The end of the knife body away from the knife handle is provided with a pushing screw and a locking screw, the end of the pushing screw away from the head passes through the U-shaped slot, and the end face of the pushing screw away from the head abuts against the second plane, and the locking screw passes through the U-shaped slot and locks the knife body part where the second plane is located.

6. The eccentric adjustable tool according to claim 5, characterized in that: The U-shaped groove divides the blade into blade body one and blade body two, wherein the blade body one is a portion away from the blade handle, and the blade body two is a portion connected to the blade handle, and the blade is arranged on the end of the blade body one away from the blade body two.

7. The eccentric adjustable tool according to claim 6, characterized in that: The ejector screw is arranged on the cutter body.

8. The eccentric adjustable tool according to claim 6, characterized in that: One end of the locking screw head is arranged on the first cutter body, and one end of the locking screw stud passes through the U-shaped slot and is locked with the second cutter body.

9. The eccentric adjustable tool according to claim 5, characterized in that: The locking screw is a countersunk screw.

10. The eccentric adjustable tool according to claim 1, characterized in that: The knife handle is a cylindrical rod, and two knife bodies are arranged on the same radial section of the knife handle. The two knife bodies are respectively located on both sides of the knife handle axis, and the two knife bodies are relatively staggered.

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