Machining tool assembly and machining device for longitudinal deep groove

Abstract

The invention relates to a deep groove machining cutter assembly and a machining device. The deep groove machining cutter assembly comprises a plane cutter plate, one end of the plane cutter plate is fixedly connected with one end of a curved-surface cutter plate, a cutter is fixed to the other end of the curved-surface cutter plate, the plane cutter plate is embedded into a fixing groove formed in a cutter table, and the cutter table is of a box structure and used for being connected with a feeding mechanism. The plane cutter plate is attached to the bottom groove face of the fixing groove, pressing plates are arranged on the two sides of the fixing groove of the cutter table, the pressing plates are fixedly connected with the cutter table through a plurality of threaded fasteners, the pressing plates make contact with the plane cutter plate and press the plane cutter plate in the fixing groove, and the machining precision is higher by adopting the machining cutter assembly.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to a tool assembly and a processing device for processing a deep groove. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] The transmission shaft is a key rotating component in the mechanism. It is connected to the motor spindle at the upper end and the working parts at the lower end. It is a key shaft for transmitting torque. The transmission shaft not only has to bear huge loads, but also has to maintain a high speed. Therefore, lubrication protection plays a very critical role in the operation of the transmission shaft. Good lubrication protection can reduce the wear of parts and increase service life. The oil tank can store lubricating oil, promote the circulation of lubricating oil, and ensure sufficient lubrication during the operation of the equipment. For larger transmission shafts, the bearings used are also larger, and the demand for lubricating oil is higher. Therefore, a larger oil tank is required to store the lubricating oil. This deep groove is a longitudinal groove with a large longitudinal depth, which far exceeds the length of a standard tool.

[0004] The existing method is to increase the processing depth by modifying the tool. The commonly used method is to lengthen the tool handle. Since the size of the tool cannot be changed, only the tool length is increased, which leads to problems in the tool structure. The specific situation is as follows:

[0005] 1. The length of the tool is lengthened by welding the tool handle. The tool handle is clamped on the tool clamp by pressing. The tool clamp is connected to the feed mechanism through a connecting plate. The connecting plate is perpendicular to the feed direction of the feed mechanism. The contact area between the two ends of the connecting plate and the feed mechanism and the tool holder is small, and there is an additional force transmission point at the tool clamp. During use, the tool handle and the tool are prone to vibrate, affecting the processing accuracy and aggravating the wear of the tool.

[0006] 2. The tool is generally clamped by clamping, and is fixed with bolts set vertically on two axes. After entering the deep groove, the tool is subject to greater resistance, which can easily cause the tool to deviate to the horizontal sides, which has a certain impact on the taper requirements of the groove. Summary of the invention

[0007] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a tool assembly and a processing device for processing a deep groove, which overcome the defects of the current tools for processing deep grooves.

[0008] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0009] In the first aspect, an embodiment of the present invention provides a tool assembly for processing a deep groove, comprising a plane tool plate, one end of which is fixedly connected to one end of a curved tool plate, and a tool is fixed to the other end of the curved tool plate, the plane tool plate is embedded in a fixed groove provided on a tool table, the tool table adopts a box structure for connecting to a feed mechanism, the plane tool plate is fitted with the bottom groove surface of the fixed groove, pressure plates are provided on both sides of the fixed groove of the tool table, the pressure plates are fixedly connected to the tool table by a plurality of threaded fasteners, the pressure plates are in contact with the plane tool plate and press the plane tool plate into the fixed groove.

[0010] Optionally, the tool is detachably fixed to the end of the curved blade.

[0011] Optionally, the fixing groove is a trapezoidal groove, and accordingly, the cross-section of the planar blade is a trapezoid that matches the fixing groove.

[0012] Optionally, the inner arc surface of the curved blade protrudes from the side where the plane blade and the pressure plate contact so that the pressure plate will not hinder the feeding movement of the plane blade and the curved blade.

[0013] Optionally, the threaded fastener is a bolt, the axial direction of the bolt is perpendicular to the flat knife plate, and the bolt passes through the pressure plate and is threadedly connected to the knife platform.

[0014] Optionally, a plurality of threaded fasteners are distributed at equal intervals along the length direction of the planar blade plate and the pressure plate.

[0015] Optionally, a pressure plate is fixed to one end of the tool platform, and a fixing hole is provided at the other end so that the tool platform can be detachably fixedly connected to a feed mechanism of a machine tool through the fixing hole and a threaded fastener.

[0016] Optionally, the curved blade includes a first blade portion and a second blade portion, the first blade portion is connected to the flat blade, the second blade portion is a tapered structure, the end with a larger area is connected to the first blade portion, and the end with a smaller area is provided with a tool fixing seat, which is fixedly connected to the tool.

[0017] Optionally, the thickness of the first blade portion is greater than the thickness of the second blade portion.

[0018] In a second aspect, an embodiment of the present invention provides a deep groove processing device, including a machine tool, the machine tool is provided with the deep groove processing tool assembly described in the first aspect, and the tool table is connected to the feeding mechanism of the machine tool.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The tool assembly of the present invention is provided with a flat blade, which is embedded in a fixed groove provided on the tool table. The flat blade fits the bottom groove surface of the fixed groove and has a large contact area. The tool table adopts a box structure and has a large connection area with the machine tool feed mechanism. The flat blade and the curved blade are more stable during processing and are not prone to vibration, thereby improving processing accuracy and reducing tool wear.

[0021] 2. The tool assembly of the present invention utilizes a pressure plate to press the flat blade in a fixed groove. When the tool encounters resistance in the longitudinal groove, the pressure plate applies a force perpendicular to the flat blade. Therefore, the flat blade is not easily deviated to the sides, thereby ensuring the taper accuracy of the longitudinal groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0023] Figure 1 This is a front view of the overall structure of Example 1 of the present invention;

[0024] Figure 2 The present invention Figure 1 A-direction cross-sectional diagram;

[0025] Figure 3 The present invention Figure 1 Schematic diagram of the B-direction cross section;

[0026] Figure 4 is a top view of the overall structure of Example 1 of the present invention;

[0027] Figure 5 It is a schematic diagram of the overall structure of Example 2 of the present invention.

[0028] Among them, 1. tool holder, 2. pressure plate, 3. flat tool plate, 4. curved tool plate, 5. tool, 6. transmission shaft, 7. feeding mechanism, 8. fixed plate. DETAILED DESCRIPTION

[0029] In this embodiment, the deep groove refers to a groove along the axis direction of the shaft, such as an oil groove of a transmission shaft.

[0030] Example 1

[0031] This embodiment provides a tool assembly for machining a deep groove, such as Figure 1-Figure 4 As shown, the tool handle includes a flat blade 3 and a curved blade 4 , and the curvature of the curved blade 4 matches the transmission shaft 6 .

[0032] One end of the curved blade 4 is fixedly connected to one end of the flat blade 3 , and the other end of the curved blade 4 is detachably provided with a blade 5 .

[0033] It also includes a tool table 1, which adopts a box structure and is used to connect with the feeding mechanism 7 of the machine tool. One end of the tool table 1 is provided with a fixing groove, which matches the plane tool plate 3. The plane tool plate 3 is embedded in the fixing groove, and the outer plate surface of the plane tool plate is in contact with the bottom groove surface of the fixing groove.

[0034] Preferably, the fixing groove is a trapezoidal groove, preferably an isosceles trapezoidal groove, the large end of the trapezoidal groove is located on the surface of the tool platform, and accordingly, the vertical cross-section of the planar blade 3 is an isosceles trapezoid matching the fixing groove.

[0035] The fixing groove is provided with a pressing plate 2 at two edges along the length direction, the pressing plate 2 is located on both sides of the fixing groove, and the pressing plate is fixedly connected to the tool platform through a plurality of threaded fasteners, and the pressing plate 2 presses the flat blade into the fixing groove. At the same time, the flat blade 3 is fixedly connected to the tool platform 1 through a plurality of bolts.

[0036] In this embodiment, the threaded fastener is a bolt, which passes through the opening set on the pressure plate 2 and is threadedly fixed to the tool platform 1. The head of the bolt presses the pressure plate 2 against the surface of the tool platform 1, and the pressure plate 2 presses the flat tool plate 3 into the fixing groove.

[0037] One end of the tool platform 1 is fixedly connected to the pressure plate 2 by bolts, and the other end is provided with a fixing plate 8, and the fixing plate 8 is provided with a plurality of fixing holes. The tool platform 1 can be detachably fixed to the feed mechanism 7 of the machine tool through the fixing holes and threaded fasteners.

[0038] The tool table 1 adopts a box structure. In one embodiment, the tool table 1 adopts a rectangular box structure. In another embodiment, the tool table 1 adopts a frustum-shaped box structure, wherein the end with a larger area is used to connect to the feed mechanism of the machine tool, and the end with a smaller area is connected to the tool handle. The frustum-shaped box structure provides better stability for the tool table 1.

[0039] In this embodiment, the inner arc surface of the curved blade 4 protrudes from the inner plate surface of the flat blade 3, that is, after the entire tool assembly is installed on the feed mechanism 7, the inner arc surface of the curved blade 4 is arranged closer to the transmission shaft 6 relative to the inner plate surface of the flat blade 3. This arrangement can avoid collision and interference between the pressure plate 2 and the transmission shaft 6 when the feed mechanism drives the curved blade 4 and the flat blade 3 to perform feeding movement.

[0040] The curved blade 4 includes a first plate portion 4-1 and a second plate portion 4-2. One end of the first plate portion 4-1 is fixedly connected to the flat blade 3, and the other end is connected to the second plate portion 4-2. In the direction away from the flat blade 3, the width of the second plate portion 4-2 decreases to form a tapered structure, and the bottom surface of the second plate portion 4-2 is flush with the bottom surface of the first plate portion 4-1. A tool seat is provided at the end of the second plate portion 4-2 with a smaller width, and a tool 5 is fixed to the tool seat.

[0041] Furthermore, the tool holder is detachably connected to the tool 5. Preferably, the tool 5 is detachably fixedly connected to the tool holder via two fixing bolts.

[0042] The tool 5 can be an existing tool for machining the oil groove of the transmission shaft, and will not be described in detail here.

[0043] Furthermore, the thickness of the first plate portion 4 - 1 is greater than the thickness 4 - 2 of the second plate portion, and the inner arc surfaces of the first plate portion 4 - 1 and the second plate portion 4 - 2 are flush.

[0044] The tool assembly of the present embodiment is provided with a flat blade 3, and the flat blade 3 is embedded in the fixed groove provided in the tool stage 1. The flat blade 3 fits with the bottom groove surface of the fixed groove, and has a large contact area. The tool stage 1 adopts a box structure, and has a large connection area with the machine tool feed mechanism 7. The flat blade 3 and the curved blade 4 are more stable during the processing and are not prone to vibration. The processing deviation caused by the vibration of the tool can be effectively reduced, the processing accuracy is improved, the wear of the tool is reduced, the number of tool replacements is reduced, and the maintenance cost is reduced. The tool 5 is connected to the tool seat by bolts, and the replacement of the tool is more convenient and quick.

[0045] In addition, the flat blade 3 is pressed into the fixed groove by the pressure plate 2, and the pressure plate 2 is fixedly connected to the tool holder 1 by a plurality of bolts perpendicular thereto. When the tool 5 encounters resistance in the longitudinal groove, the pressure plate 2 and the bolts apply a force perpendicular to the flat blade 3. Therefore, the flat blade 3 is not easy to deviate to the sides, thereby ensuring the taper accuracy of the longitudinal groove.

[0046] Example 2

[0047] This embodiment provides a deep groove processing device, such as Figure 5 As shown, the machine tool is provided with a tool assembly for processing a deep groove as described in Example 1, wherein the tool table 1 is connected to the feed mechanism 7 of the machine tool through fixing holes and bolts, and the remaining structure of the machine tool can adopt the existing technology and will not be described in detail here.

[0048] In the processing device of this embodiment, the machine tool drives the transmission shaft to rotate, and the feeding mechanism 7 of the machine tool drives the processing tool assembly to move along the axial direction of the transmission shaft through the tool table 1. The tool 5 processes the transmission shaft 6 to form an annular oil groove.

[0049] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tool assembly for machining a deep groove, characterized in that: It includes a flat blade, one end of which is fixedly connected to one end of a curved blade, and a tool is fixed to the other end of the curved blade. The flat blade is embedded in a fixed groove provided in a tool platform. The tool platform adopts a box structure for connecting with a feed mechanism. The flat blade fits the bottom groove surface of the fixed groove. Pressure plates are provided on both sides of the fixed groove of the tool platform. The pressure plates are fixedly connected to the tool platform through a plurality of threaded fasteners. The pressure plates contact the flat blade and press the flat blade into the fixed groove.

2. A tool assembly for machining a deep groove as claimed in claim 1, characterized in that: The tool is detachably fixed to the end of the curved blade.

3. A tool assembly for machining a deep groove as claimed in claim 1, characterized in that: The fixing groove is a trapezoidal groove, and accordingly, the cross section of the planar blade is a trapezoidal shape matching the fixing groove.

4. A tool assembly for machining a deep groove as claimed in claim 1, characterized in that: The inner arc surface of the curved blade protrudes from the side where the plane blade plate contacts the pressure plate so that the pressure plate will not hinder the feeding movement of the plane blade plate and the curved blade plate.

5. A tool assembly for machining a deep groove as claimed in claim 1, characterized in that: The threaded fastener is a bolt, the axial direction of the bolt is perpendicular to the flat knife plate, and the bolt passes through the pressing plate and is threadedly connected to the knife platform.

6. A tool assembly for machining a deep groove as claimed in claim 1, characterized in that: A plurality of threaded fasteners are distributed at equal intervals along the length direction of the plane blade plate and the pressure plate.

7. A tool assembly for machining a deep groove as claimed in claim 1, characterized in that: A pressing plate is fixed at one end of the tool platform, and a fixing hole is provided at the other end thereof and can be detachably fixedly connected to a feeding mechanism of a machine tool through the fixing hole and a threaded fastener.

8. A tool assembly for machining a deep groove as claimed in claim 1, characterized in that: The curved blade includes a first blade portion and a second blade portion. The first blade portion is connected to the flat blade. The second blade portion is a tapered structure, with the larger end portion connected to the first blade portion and the smaller end portion provided with a tool fixing seat, which is fixedly connected to the tool.

9. A tool assembly for machining a deep groove as claimed in claim 8, characterized in that: The thickness of the first blade portion is greater than the thickness of the second blade portion.

10. A deep groove processing device, comprising a machine tool, characterized in that: The machine tool is provided with a tool assembly for machining a deep groove according to any one of claims 1 to 9, and the tool platform is connected to a feed mechanism of the machine tool.

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