Adjustable machine clamping tool rest

Abstract

The utility model discloses an adjustable machine clamping knife rest which comprises a clamping structure, a rotating assembly and a knife handle, the clamping structure is used for installing a blade, the clamping structure is installed on the knife handle through the rotating assembly, and the rotating assembly is used for adjusting the angle of the blade in a rotating mode. The rotating assembly comprises a first rotating assembly and a second rotating assembly, the clamping structure is installed on the second rotating assembly, the second rotating assembly is installed on the first rotating assembly, the first rotating assembly comprises a transposition block, a first rotating shaft is arranged on the cutter handle, the transposition block is arranged on the first rotating shaft in a sleeving mode, and the first rotating shaft is provided with a second rotating shaft. The transposition block is rotationally connected with the first rotating shaft; angles such as the front angle and the rear angle of the turning tool can be adjusted through rotation of the transposition block, the sharpness of the tool, the surface quality of a workpiece, the service life of the tool and the like can be controlled, a proper angle is selected according to the actual machining condition, and therefore the effect of improving the machining effect is achieved.

Description

Technical Field

[0001] This application relates to the field of lathe tool technology, and in particular to an adjustable machine tool holder. Background Technology

[0002] A lathe tool is a cutting tool with a single cutting section used for turning. It is one of the most widely used cutting tools in machining. The working part of a lathe tool is what generates and handles chips, including the cutting edge, structures that break or coil the chips, spaces for chip removal or storage, and channels for cutting fluid.

[0003] A mechanically clamped lathe tool is a lathe tool formed by mechanically clamping ISO inserts onto a tool holder. The insert has selected geometric parameters for cutting (without grinding) and two or more cutting edges for indexing. When one cutting edge wears out, the clamping mechanism is released, the insert is indexed to another cutting edge, and then clamped again to perform cutting. When all cutting edges wear out, they can be removed and replaced with new inserts of the same type.

[0004] Existing indexable lathe tools typically only allow for the removal and replacement of inserts or the switching of cutting edges. They usually cannot improve machining results by adjusting the angle of the inserts. If existing lathe machining requires improving machining results by using tools with different angles, multiple tool holders with different angles are usually needed, which is inconvenient to operate and has high machining costs. Utility Model Content

[0005] The main purpose of this application is to propose an adjustable clamping tool holder, which aims to solve the problem that existing clamping turning tools cannot adjust the blade angle.

[0006] To achieve the above objectives, the present application proposes an adjustable machine tool holder, comprising: a clamping structure, a rotating assembly, and a tool holder. The clamping structure is used to mount the blade, and the clamping structure is mounted on the tool holder via the rotating assembly. The rotating assembly is used to rotate and adjust the angle of the blade.

[0007] The rotating assembly includes a first rotating assembly and a second rotating assembly. The clamping structure is mounted on the second rotating assembly, and the second rotating assembly is mounted on the first rotating assembly. The first rotating assembly includes a pivot block. A first rotating shaft is provided on the tool holder. The pivot block is sleeved on the first rotating shaft, and the pivot block is rotatably connected to the first rotating shaft.

[0008] Optionally, a rotation groove is provided on the first surface of the tool holder, the first rotating shaft is disposed in the rotation groove, and a first locking screw is connected to the first rotating shaft. The first locking screw is used to lock the rotation block.

[0009] Optionally, a first washer is provided between the first locking screw and the indexing block, and the first washer has circumferentially evenly distributed anti-slip teeth on its end face facing the indexing block.

[0010] Optionally, a first scale is provided on the first surface of the tool holder near the indexing groove, and a first mark is provided on the second end of the indexing block corresponding to the first scale.

[0011] Optionally, a limiting block is rotatably provided on the second surface of the tool holder. The limiting block is connected to the tool holder by a second locking screw. A second washer is provided between the second locking screw and the limiting block. A limiting block is provided on the outer side of the third surface of the tool holder. The limiting block is fixedly connected to the end of the limiting block away from the second locking screw. A limiting groove is provided on the indexing block corresponding to the limiting block. The limiting block is used to be locked in the limiting groove.

[0012] Optionally, the second rotating assembly includes a clamping seat. An arc-shaped clamping groove is formed on the first end of the indexing block corresponding to the fourth side of the tool holder. A second rotating shaft is disposed in the clamping groove. The clamping seat is disposed in the clamping groove and is rotatably mounted on the second rotating shaft. A pressure block is provided on the fourth side of the indexing block near the clamping groove. The pressure block is mounted on the indexing block by a third locking screw. An arc-shaped mating groove is formed on the surface of the clamping seat facing the pressure block. A protrusion is provided on the pressure block and is slidably disposed in the mating groove.

[0013] Optionally, a second scale is provided on the indexing block near the mating groove, and a second mark is provided on the clamping seat corresponding to the second scale.

[0014] Optionally, the clamping structure includes a blade groove, and the blade groove is provided on the surface of the clamping base corresponding to the mating groove. The blade groove is used to install the blade, and the blade is installed in the blade groove by a fourth locking screw. The shape of the blade groove is consistent with the shape of the blade.

[0015] Optionally, the fourth locking screw is located at the rotation center of the clamping seat, and the fourth locking screw passes through the clamping seat and is connected to the second rotating shaft.

[0016] Optionally, the blade groove has a square structure, and the end of the tool holder away from the indexing block has a cylindrical structure.

[0017] This technical solution involves setting a clamping structure on the tool holder, which is mounted on the tool holder via a rotating assembly. The clamping structure is used to hold the cutting insert, and the rotating assembly is used to rotate and adjust the angle of the cutting insert. The angle of the cutting insert can be adjusted by rotating the assembly, that is, adjusting the main cutting edge angle, secondary cutting edge angle, rake angle, clearance angle, etc., which can control the shape of the chips, the surface quality of the workpiece, the tool life, and the tool sharpness. According to the actual machining conditions, a suitable angle can be selected, thereby improving the machining effect. By adjusting the angle of the cutting insert, one cutting tool can achieve the machining function of multiple different cutting tools, thereby saving machining costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of the adjustable tool holder of this application;

[0020] Figure 2 This is the second three-dimensional structural schematic diagram of the adjustable tool holder of this application;

[0021] Figure 3 This is one of the disassembly diagrams of the adjustable tool holder of this application;

[0022] Figure 4 This is the second schematic diagram of the disassembly structure of the adjustable tool holder of this application.

[0023] Explanation of icon numbers:

[0024] 1. Tool holder; 110. First face of tool holder; 120. Second face of tool holder; 130. Third face of tool holder; 140. Fourth face of tool holder; 2. First rotating assembly; 201. Indexing block; 202. Indexing groove; 203. First rotating shaft; 204. First locking screw; 205. First washer; 3. Second rotating assembly; 301. Clamping seat; 302. Clamping groove; 303. Second rotating shaft; 304. Pressing block; 305. Third locking screw; 306. Mating groove; 307. Protrusion; 4. First graduation; 5. Limiting block; 6. Second locking screw; 7. Second washer; 8. Limiting block; 9. Limiting groove; 10. Second graduation; 11. Blade groove.

[0025] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] 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 the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0030] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0031] Existing indexable lathe tools typically only allow for the removal and replacement of inserts or the switching of cutting edges. They usually cannot improve machining results by adjusting the angle of the inserts. If existing lathe machining requires improving machining results by using tools with different angles, multiple tool holders with different angles are usually needed, which is inconvenient to operate and has high machining costs.

[0032] In view of this, this application proposes an adjustable machine tool holder.

[0033] In the embodiments of this application, reference is made to Figures 1 to 4 The aforementioned adjustable tool holder includes: a clamping structure, a rotating assembly, and a tool holder 1. The clamping structure is used to install the cutting insert. The clamping structure is mounted on the tool holder 1 via the rotating assembly, which is used to rotate and adjust the angle of the cutting insert. The angle of the cutting insert can be adjusted via the rotating assembly, that is, the main cutting edge angle, secondary cutting edge angle, rake angle, clearance angle, etc. of the cutting tool. This allows control over the shape of the chips, the surface quality of the workpiece, the tool life, and the tool sharpness. According to the actual machining conditions, a suitable angle can be selected to improve the machining effect. In addition, by adjusting the angle of the cutting insert, one cutting tool can perform the machining functions of multiple different cutting tools, thereby saving machining costs.

[0034] refer to Figure 3 The rotating assembly includes a first rotating assembly 2 and a second rotating assembly 3. The clamping structure is installed on the second rotating assembly 3, and the second rotating assembly 3 is installed on the first rotating assembly 2. The first rotating assembly 2 includes a pivot block 201. A first rotating shaft 203 is provided on the tool holder 1. The pivot block 201 is sleeved on the first rotating shaft 203, and the pivot block 201 is rotatably connected to the first rotating shaft 203. The angle of the blade can be adjusted up and down by rotating the pivot block 201, that is, the rake angle and clearance angle of the tool can be adjusted.

[0035] refer to Figure 3 An arc-shaped indexing groove 202 is provided on the first surface 110 of the tool holder. A first rotating shaft 203 is disposed in the indexing groove 202. A first locking screw 204 is connected to the first rotating shaft 203. The first locking screw 204 is used to lock the indexing block 201. When the first locking screw 204 is loose, the indexing block 201 can rotate around the first rotating shaft 203. When the first locking screw 204 is locked, it can press and fix the indexing block 201.

[0036] refer to Figure 1 and Figure 3 A first washer 205 is provided between the first locking screw 204 and the indexing block 201. The first washer 205 has circumferentially evenly distributed anti-slip teeth on its end face facing the indexing block 201, which increases the friction between the first locking screw 204 and the indexing block 201 and reduces the possibility of the indexing block 201 rotating on its own.

[0037] refer to Figure 4 The first scale 4 is provided on the first surface 110 of the tool holder 1 near the indexing groove 202. The second end of the indexing block 201 is provided with a first mark corresponding to the first scale 4. By observing the position of the first mark pointing to the first scale 4, it is convenient to accurately adjust the angle of the indexing block 201, that is, adjust the front and rear angles of the blade.

[0038] refer to Figure 2 and Figure 3 A limiting block 5 is rotatably mounted on the second surface 120 (the surface opposite to the first surface 110) of the tool holder 1. The limiting block 5 is connected to the tool holder 1 by a second locking screw 6. A second washer 7 is provided between the second locking screw 6 and the limiting block 5. A limiting block 8 is provided on the outer side of the third surface 130 of the tool holder 1. The limiting block 8 is fixedly connected to the end of the limiting block 5 away from the second locking screw 6. A limiting groove 9 is provided on the indexing block 201 corresponding to the limiting block 8. The limiting block 8 is used to be locked in the limiting groove 9. By locking the limiting block 8 in the limiting groove 9 on the indexing block 201, the indexing block 201 can be supported and limited, further preventing the indexing block 201 from rotating on its own, thereby improving the strength of the tool.

[0039] refer to Figure 1 and Figure 4 The second rotating assembly 3 includes a clamping seat 301. An arc-shaped clamping groove 302 is formed on the first end of the indexing block 201 corresponding to the fourth surface 140 (the surface opposite to the third surface 130) of the tool holder 1. A second rotating shaft 303 is disposed within the clamping groove 302. The clamping seat 301 is rotatably mounted on the second rotating shaft 303. A pressing block 304 is provided on the surface of the indexing block 201 corresponding to the fourth surface 140 of the tool holder 1 near the clamping groove 302. The pressing block 304 is installed by a third locking screw 305. On the indexing block 201, the clamping seat 301 has an arc-shaped mating groove 306 on its surface facing the pressing block 304. The pressing block 304 is provided with a protrusion 307, which is slidably disposed in the mating groove 306. When the third locking screw 305 is loosened, the pressing block 304 and the clamping seat 301 become loose. At this time, the clamping seat 301 can rotate around the second rotating shaft 303, and the mating groove 306 and the protrusion 307 slide relative to each other, thereby adjusting the main and secondary cutting angles of the blade, etc. When the third locking screw 305 is tightened, the pressing block 304 presses the clamping seat 301 to prevent the clamping seat 301 from rotating on its own.

[0040] refer to Figure 3The indexing block 201 has a second scale 10 near the mating groove 306. The clamping seat 301 has a second mark corresponding to the second scale 10. By observing the position of the second mark pointing to the second scale 10, the angle of the clamping seat 301 can be adjusted precisely, that is, the angle of the main and secondary cutting edges of the cutting tool can be adjusted.

[0041] refer to Figure 2 The clamping structure includes a blade groove 11. The clamping base 301 has a blade groove 11 on the surface corresponding to the mating groove 306. The blade groove 11 is used to install the blade. The blade is installed in the blade groove 11 by the fourth locking screw. The shape of the blade groove 11 is consistent with the shape of the blade. The blade groove 11 can limit and position the blade to prevent the blade from rotating on its own in the blade groove 11.

[0042] Specifically, the fourth locking screw is located at the rotation center of the clamping seat 301 (not shown in the figure). The fourth locking screw passes through the clamping seat 301 and is connected to the second rotating shaft 303. That is, the fourth locking screw can clamp the clamping seat 301 while clamping the blade.

[0043] refer to Figure 1 and Figure 3 In this embodiment, the blade and blade groove 11 are square structures, which enable the blade groove 11 to restrict and position the blade. Since the blade is square, when one of the blade edges wears out, the blade edge can be switched by rotating or flipping the blade, so that all eight blade edges can participate in the machining. The end of the tool holder 1 away from the indexing block 201 is cylindrical, which allows the tool to be rotated at any angle around the axis of the tool holder 1 and then mounted on the tool post of the machine tool, thereby realizing the adjustment of the blade angle.

[0044] It should be noted that the first rotating component 2 and the second rotating component 3 are detachable and replaceable to accommodate blades of different shapes.

[0045] This application's technical solution involves setting a clamping structure between the cutting tool and the tool holder. The clamping structure is mounted on the tool holder via a rotating assembly. The clamping structure is used to hold the cutting tool, and the rotating assembly is used to rotate and adjust the angle of the cutting tool. The angle of the cutting tool can be adjusted by rotating the assembly, that is, adjusting the main cutting edge angle, secondary cutting edge angle, rake angle, clearance angle, etc., which can control the shape of the chips, the surface quality of the workpiece, the tool life, and the tool sharpness. According to the actual machining conditions, a suitable angle can be selected, thereby improving the machining effect. By adjusting the angle of the cutting tool, one cutting tool can achieve the machining function of multiple different cutting tools, thereby saving machining costs.

[0046] The above description is merely an optional embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An adjustable machine tool holder, characterized in that, include: The tool holder includes a clamping structure, a rotating assembly, and a tool holder. The clamping structure is used to mount a blade, and the clamping structure is mounted on the tool holder via the rotating assembly. The rotating assembly is used to rotate and adjust the angle of the blade. The rotating assembly includes a first rotating assembly and a second rotating assembly. The clamping structure is mounted on the second rotating assembly, and the second rotating assembly is mounted on the first rotating assembly. The first rotating assembly includes a pivot block. A first rotating shaft is provided on the tool holder. The pivot block is sleeved on the first rotating shaft, and the pivot block is rotatably connected to the first rotating shaft.

2. The adjustable tool holder as described in claim 1, characterized in that, A rotation groove is provided on the first surface of the tool holder, and the first rotating shaft is disposed in the rotation groove. A first locking screw is connected to the first rotating shaft, and the first locking screw is used to lock the rotation block.

3. The adjustable tool holder as described in claim 2, characterized in that, A first washer is provided between the first locking screw and the indexing block, and the first washer has circumferentially evenly distributed anti-slip teeth on its end face facing the indexing block.

4. The adjustable tool holder as described in claim 2, characterized in that, A first scale is provided on the first surface of the tool holder near the indexing groove, and a first mark is provided on the second end of the indexing block corresponding to the first scale.

5. The adjustable tool holder as described in claim 2, characterized in that, A limiting block is rotatably provided on the second surface of the tool handle. The limiting block is connected to the tool handle by a second locking screw. A second washer is provided between the second locking screw and the limiting block. A limiting block is provided on the outer side of the third surface of the tool handle. The limiting block is fixedly connected to the end of the limiting block away from the second locking screw. A limiting groove is provided on the rotating block corresponding to the limiting block. The limiting block is used to be locked in the limiting groove.

6. The adjustable tool holder as described in claim 1, characterized in that, The second rotating assembly includes a clamping seat. An arc-shaped clamping groove is formed on the first end of the indexing block corresponding to the fourth side of the tool holder. A second rotating shaft is disposed in the clamping groove. The clamping seat is disposed in the clamping groove and is rotatably mounted on the second rotating shaft. A pressure block is provided on the fourth side of the indexing block near the clamping groove. The pressure block is mounted on the indexing block by a third locking screw. An arc-shaped mating groove is formed on the surface of the clamping seat facing the pressure block. A protrusion is provided on the pressure block and is slidably disposed in the mating groove.

7. The adjustable tool holder as described in claim 6, characterized in that, The indexing block has a second scale near the mating groove, and the clamping base has a second mark corresponding to the second scale.

8. The adjustable tool holder as described in claim 6, characterized in that, The clamping structure includes a blade groove. The blade groove is provided on the surface of the clamping base corresponding to the mating groove. The blade groove is used to install the blade. The blade is installed in the blade groove by a fourth locking screw. The shape of the blade groove is consistent with the shape of the blade.

9. The adjustable tool holder as described in claim 8, characterized in that, The fourth locking screw is located at the rotation center of the clamping seat, and the fourth locking screw passes through the clamping seat and is connected to the second rotating shaft.

10. The adjustable tool holder as described in claim 8, characterized in that, The blade groove has a square structure, and the end of the tool holder away from the indexing block has a cylindrical structure.

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