Grinding tool for lathe and end face grinding method for lathe

Abstract

The present invention provides a grinding tool for a lathe, comprising a connecting rod, a ball head connecting rod, a sliding shoe, a grinding wheel, a locking block, a spring, a butterfly spring and a bearing, wherein the connecting rod is provided with an inner hole arranged along its axis, the ball head connecting rod is arranged on the inner hole of the connecting rod, the ball head connecting rod is coaxially mounted with the connecting rod, the ball head connecting rod and the connecting rod are axially slidingly matched, a limiting structure for limiting the axial sliding position of the ball head connecting rod is arranged between the ball head connecting rod and the connecting rod, the ball head connecting rod comprises a ball head portion and an outer cylindrical portion, and the sliding shoe is movably connected to the ball head portion of the ball head connecting rod. The present invention also provides a method for grinding the end face of a lathe. The beneficial effects of the present invention are: a grinding tool for a lathe is newly designed, and the end face grinding of parts can be performed using an existing lathe, thereby avoiding the use of a grinder and reducing equipment costs.

Description

Technical Field

[0001] The invention relates to a tool, in particular to a grinding tool for a lathe and a lathe end surface grinding method. Background Art

[0002] At present, in machine tool processing, when the end face processing accuracy of parts is required to be high, since the machine tool cannot perform end face grinding, it is usually necessary to use a grinder for fine grinding. If the machine tool can also perform end face grinding, the processing range of the machine tool can be expanded, and there is no need to purchase a grinder separately, which greatly reduces the requirements for processing equipment. Summary of the invention

[0003] In order to solve the problems in the prior art, the present invention provides a grinding tool for a lathe and a lathe end face grinding method.

[0004] The present invention provides a grinding tool for a lathe, comprising a connecting rod, a ball head connecting rod, a sliding shoe, a grinding wheel, a locking pressure block, a spring, a butterfly spring and a bearing. The connecting rod is provided with an inner hole arranged along the axis thereof, the ball head connecting rod is arranged on the inner hole of the connecting rod, the ball head connecting rod is coaxially mounted with the connecting rod, the ball head connecting rod and the connecting rod are axially slidingly matched, a limiting structure for limiting the axial sliding position of the ball head connecting rod is arranged between the ball head connecting rod and the connecting rod, the ball head connecting rod comprises a ball head portion and an outer circular portion, the sliding shoe is movably connected with the ball head portion of the ball head connecting rod, the outer circular portion of the ball head connecting rod is located in the inner hole of the connecting rod and is slidingly matched therewith, the spring is installed in the inner hole of the connecting rod and is in a compressed state under the pressure of the ball head connecting rod, the locking pressure block is fixedly connected to the grinding wheel, the sliding shoe is clamped between the locking pressure block and the grinding wheel, the bearing is installed on the inner hole of the connecting rod, and the butterfly spring is clamped between the locking pressure block and the bearing.

[0005] As a further improvement of the present invention, a first step hole is provided at the opening of one end of the inner hole of the connecting rod, and an adjusting screw is connected to the other end. The bearing is installed on the first step hole, and the spring is clamped between the ball head connecting rod and the adjusting screw.

[0006] As a further improvement of the present invention, a second step hole is provided at the opening of the first step hole, one end of the butterfly spring is installed on the second step hole, the adjusting screw includes an outer circular portion and an outer threaded portion, the diameter of the outer circular portion of the adjusting screw is smaller than the outer threaded portion of the adjusting screw, the outer threaded portion of the adjusting screw is threadably matched with the inner hole of the connecting rod, and the outer circular portion of the adjusting screw is inserted into the center hole of the spring.

[0007] As a further improvement of the present invention, the limiting structure includes a limiting screw, the ball head connecting rod is provided with a keyway for limiting its axial sliding position, the keyway is arranged along the axial direction of the ball head connecting rod, and the limiting screw radially passes through the connecting rod and is inserted into the keyway.

[0008] As a further improvement of the present invention, a spiral groove capable of storing lubricating oil is provided on the ball head portion of the ball head connecting rod, and a lubricating oil channel is provided on the outer circumference of the ball head connecting rod, and the lubricating oil channel is connected to the spiral groove.

[0009] As a further improvement of the present invention, the slipper includes a head, a middle convex ring and a tail, the middle convex ring of the slipper protrudes radially, the grinding wheel is provided with a central through hole, the head of the slipper is inserted into the central through hole of the grinding wheel, the tail of the slipper is provided with a spherical groove, the ball head of the ball head connecting rod is inserted into the spherical groove of the slipper, the tail of the slipper passes through the locking pressure block and the butterfly spring from front to back, and there is a movable gap between the tail of the slipper and the bearing.

[0010] As a further improvement of the present invention, the locking pressure block is in a circular ring shape, and is provided with a central through hole for the tail of the sliding shoe to pass through, and the two ends of the central through hole of the locking pressure block are respectively provided with a head end step hole and a tail end step hole, one end of the butterfly spring is installed on the tail end step hole, and the middle convex ring of the sliding shoe is installed on the head end step hole.

[0011] As a further improvement of the present invention, the locking pressure block is connected to a locking cover via a locking bolt, and the locking cover is locked on the outer side of the grinding wheel.

[0012] As a further improvement of the present invention, the head end face of the locking block is tightly attached to the inner side face of the grinding wheel, and the tail end of the locking block is provided with a notch capable of blowing out tool residues, and the notch is connected to the step hole at the tail end.

[0013] As a further improvement of the present invention, the grinding wheel is a bowl-shaped grinding wheel, the clamping cover is tightly attached to the bottom end surface of the bowl of the bowl-shaped grinding wheel, there are at least two butterfly springs and they are evenly distributed around the circumference of the connecting rod, and the sliding shoe is an alloy copper sliding shoe.

[0014] As a further improvement of the present invention, the outer side surface of the bowl edge of the bowl-shaped grinding wheel is a grinding surface.

[0015] The present invention also provides a lathe end face grinding method, which uses the lathe grinding tool as described above to perform the following process:

[0016] The lathe grinding tool is installed on the tool holder of the lathe, the workpiece is installed on the spindle of the lathe, the workpiece is moved and the end face of the workpiece is fitted to the grinding surface of the grinding wheel. The workpiece is driven to rotate at high speed by the spindle of the lathe. The workpiece rotates actively, driving the lathe grinding tool to rotate passively, thereby realizing the grinding of the end face of the workpiece.

[0017] The beneficial effects of the present invention are as follows: through the above scheme, a new grinding tool for a lathe is designed, and the end surface grinding of parts can be performed using an existing lathe, thereby avoiding the use of a grinder and reducing equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other solutions can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The present invention is a cross-sectional schematic diagram of a grinding tool for a lathe.

[0020] Figure 2 It is a front view of a grinding tool for a lathe according to the present invention.

[0021] Figure 3 yes Figure 2 Sectional view AA.

[0022] Figure 4 yes Figure 3 A partial enlarged view of B.

[0023] Figure 5 The utility model is a front view of a ball head connecting rod of a grinding tool for a lathe according to the present invention.

[0024] Figure 6 yes Figure 5 Cross-sectional view of CC.

[0025] Figure 7 It is a front view of a sliding shoe of a grinding tool for a lathe according to the present invention.

[0026] Figure 8 yes Figure 7 Cross-sectional view of DD.

[0027] Fig. 9 The utility model is a front view of a connecting rod of a grinding tool for a lathe according to the present invention.

[0028] Fig.10 yes Fig. 9 Cross-sectional view of EE.

[0029] Fig.11 yes Fig.10 A partial enlarged view of F.

[0030] Fig.12 The present invention is a schematic diagram of an adjusting screw of a grinding tool for a lathe.

[0031] Fig.13 It is a front view of a grinding wheel of a grinding tool for a lathe according to the present invention.

[0032] Fig.14 yes Fig.13 Cross-sectional view of GG.

[0033] Fig.15 It is a schematic diagram of a grinding wheel for a lathe grinding tool according to the present invention.

[0034] Fig.16 The utility model is a front view of a locking pressing block of a grinding tool for a lathe according to the present invention.

[0035] Fig.17 yes Fig.16 Cross-sectional view of HH.

[0036] Fig.18 It is a schematic diagram of a locking pressing block of a grinding tool for a lathe according to the present invention. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0041] like Figures 1 to 18 As shown, a grinding tool for a lathe mainly includes a connecting rod 1, a ball head connecting rod 2, a sliding shoe 3, a grinding wheel 4, a locking pressure block 5, a spring 7, a butterfly spring 10 and a bearing 9.

[0042] The connecting rod 1 is provided with an inner hole 103 arranged along its axis, and the ball head connecting rod 2 is arranged on the inner hole 103 of the connecting rod 1. The ball head connecting rod 2 is coaxially installed with the connecting rod 1, and the ball head connecting rod 2 and the connecting rod 1 are axially slidingly matched, that is, the ball head connecting rod 2 can translate forward and backward along the inner hole 103.

[0043] A limiting structure for limiting the axial sliding position of the ball head connecting rod 2 is provided between the ball head connecting rod 2 and the connecting rod 1 , so as to limit the sliding position of the ball head connecting rod 2 .

[0044] The ball head connecting rod 2 includes a ball head portion 22 and an outer circular portion 21, and the sliding shoe 3 is movably connected to the ball head portion 22 of the ball head connecting rod 2, that is, the sliding shoe 3 and the ball head portion 22 of the ball head connecting rod 2 form a spherical pair, which can realize free rotation.

[0045] The outer circle 21 of the ball head connecting rod 2 is located in the inner hole 103 of the connecting rod 1 and slides with it. The spring 7 is installed in the inner hole 103 of the connecting rod 1 and is in a compressed state under the pressure of the ball head connecting rod 2. On the one hand, the spring 7 plays an elastic supporting role. During grinding, it can better keep the grinding wheel 4 pressed against the workpiece. On the other hand, during disassembly, the spring 7 has an elastic force in the direction of the grinding wheel 4, and the sliding shoe 3 can pop out, which is convenient for disassembly.

[0046] The locking pressure block 5 is fixedly connected to the grinding wheel 4, the sliding shoe 3 is clamped between the locking pressure block 5 and the grinding wheel 4, the bearing 9 is installed on one end of the inner hole of the connecting rod 1, and the butterfly spring 10 is clamped between the locking pressure block 5 and the bearing 9. The butterfly spring 10 is arranged between the locking pressure block 5 and the bearing 9, which can play a buffering role during the tool changing process of the machine tool to prevent the tool from shaking.

[0047] A first step hole 104 is provided at the opening of one end of the inner hole 101 of the connecting rod 1, and an adjusting screw 8 is connected to the other end. The bearing 9 is installed on the first step hole 104, and the spring 7 is clamped between the ball head connecting rod 2 and the adjusting screw 8. The compression length of the spring 7 can be adjusted by the adjusting screw 8.

[0048] A second step hole 105 is formed at the opening of the first step hole 104 , and one end of the butterfly spring 10 is mounted on the second step hole 105 .

[0049] The adjusting screw 8 includes an outer circular portion 801 and an outer threaded portion 802. The diameter of the outer circular portion 801 of the adjusting screw 8 is smaller than the outer threaded portion 802 of the adjusting screw 8. The outer threaded portion 802 of the adjusting screw 8 is threadedly matched with the threaded hole 102 of the inner hole 103 of the connecting rod 1. The outer circular portion 801 of the adjusting screw 8 is inserted into the center hole of the spring 7, which can optimize the installation of the spring 7.

[0050] The limiting structure includes a limiting screw 6, and the ball head connecting rod 2 is provided with a key groove 211 for limiting its axial sliding position. The key groove 211 is arranged along the axial direction of the ball head connecting rod 2, and the limiting screw 6 radially passes through the connecting rod 1 and is inserted into the key groove 211. The axial limitation of the ball head connecting rod 2 can be achieved by the cooperation between the limiting screw 6 and the key groove 211, and the rotation of the ball head connecting rod 2 can also be limited.

[0051] There are two key grooves 211 , which are respectively arranged on the outer circumference 21 of the ball head connecting rod 2 .

[0052] The ball head portion 22 of the ball head connecting rod 2 is provided with a spiral groove 221 capable of storing lubricating oil, and the outer circumferential portion 21 of the ball head connecting rod 2 is provided with a lubricating oil channel 23, and the lubricating oil channel 23 and the spiral groove 221 are communicated, and lubricating oil can be injected into the spiral groove 221 through the lubricating oil channel 23. The lubricating oil is stored in the spiral groove 221, which can increase the service life of the product.

[0053] The slipper 3 includes a head 32, a middle convex ring 33 and a tail 34. The middle convex ring 33 of the slipper 3 protrudes radially. The grinding wheel 4 is provided with a central through hole 401. The head 32 of the slipper 3 is inserted into the central through hole 401 of the grinding wheel 4. The tail 34 of the slipper 3 is provided with a spherical groove 31. The ball head 22 of the ball head connecting rod 2 is inserted into the spherical groove 31 of the slipper 3. The tail 34 of the slipper 3 passes through the locking pressure block 5 and the butterfly spring 10 from front to back. There is a movable gap between the tail of the slipper 3 and the bearing 9, so that the slipper 3 can rotate freely.

[0054] The outer diameter of the ball head 22 of the ball head connecting rod 2 is smaller than the inner diameter of the spherical groove 31 of the sliding shoe 3 .

[0055] The locking pressure block 5 is in a circular ring shape, and is provided with a central through hole 505 for the tail portion 34 of the sliding shoe 3 to pass through. The two ends of the central through hole 505 of the locking pressure block 5 are respectively provided with a head end step hole 502 and a tail end step hole 501. One end of the butterfly spring 10 is installed on the tail end step hole 501, and the middle convex ring 33 of the sliding shoe 3 is installed on the head end step hole 502, and the axial position of the sliding shoe 3 can be limited by the head end step hole 502.

[0056] The locking block 5 is connected to a clamping cover 11 via a locking bolt 12 , and the clamping cover 11 is locked on the outer side of the grinding wheel 4 .

[0057] The grinding wheel 4 is provided with a through hole 403 for the locking bolt 12 to pass through, and the locking block 5 is provided with a threaded hole 503 which is threadably matched with the locking bolt 12 .

[0058] The head end surface of the locking block 5 is closely attached to the inner side surface of the grinding wheel 4 . The tail end of the locking block 5 is provided with a notch 504 for blowing out tool residues. The notch 504 is connected to the tail end step hole 501 .

[0059] The grinding wheel 4 is preferably a bowl-shaped grinding wheel, the clamping cover 11 is tightly attached to the bottom end surface 402 of the bowl-shaped grinding wheel, there are at least two butterfly springs 10 and they are evenly distributed around the circumference of the connecting rod 1, and the sliding shoe 3 is preferably an alloy copper sliding shoe.

[0060] The outer side surface 404 of the bowl edge of the bowl-shaped grinding wheel is a grinding surface.

[0061] The present invention provides a grinding tool for a lathe, and the specific assembly process is as follows:

[0062] Install the bearing 9 into the first step hole 104 corresponding to the connecting rod 1, install the two disc springs 10 into the second step hole 105 of the connecting rod 1 and the tail end step hole 501 of the locking block 5 respectively, the two disc springs 10 are relatively tightly connected, connect the sliding shoe 3 with the ball head connecting rod 2, and then pass the ball head connecting rod 2 through the locking block 5 and install it into the inner hole 103 of the connecting rod 1, install the middle convex ring 33 of the sliding shoe 3 into the head end step hole 502 of the locking block, and install the two limit screws 6 into the The connecting rod 1 is connected to the ball head connecting rod 2 in the corresponding threaded hole 101, the clamping cover 11 is installed into the bowl bottom end face 402 of the bowl-shaped grinding wheel, and the clamping cover 11, the bowl-shaped grinding wheel and the locking block 5 are connected with the locking bolt 12, the spring 7 is installed into the inner hole 103 of the connecting rod 1, the adjusting screw 8 is installed into the threaded hole 102 of the connecting rod 1 and tightened, the spring 7 is clamped between the adjusting screw 8 and the ball head connecting rod 2 to form a grinding tool for a lathe, and finally the grinding tool for a lathe is connected to the tool handle.

[0063] The present invention provides a grinding tool for a lathe, and its processing principle is as follows:

[0064] The lathe grinding tool is installed on the tool holder of the lathe, the workpiece is installed on the spindle of the lathe, the workpiece is moved and the end face of the workpiece is fitted to the grinding surface of the grinding wheel. The workpiece is driven to rotate at high speed by the spindle of the lathe. The workpiece rotates actively, driving the lathe grinding tool to rotate passively, thereby realizing the grinding of the end face of the workpiece.

[0065] The grinding tool for a lathe provided by the present invention has the following advantages:

[0066] 1. The ball head connecting rod 2 and the sliding shoe 3 are used to realize free rotation through the ball head 22. When the connecting rod 1 is kept fixed, the grinding wheel 4 can rotate freely, which provides a basis for the end face grinding of the workpiece;

[0067] 2. The spring 7 is used to support the ball head connecting rod 2, so that the grinding wheel 4 can be kept close to the end face of the workpiece during grinding. In addition, when disassembling, the spring 7 has an elastic force in the direction of the grinding wheel 4, and the sliding shoe 3 can be ejected, which is convenient for disassembly;

[0068] 3. Since the ball head connecting rod 2 and the sliding shoe 3 are free to rotate, a large shaking amplitude is likely to occur. The disc spring 10 can prevent the grinding wheel 4 from having a large shaking amplitude, avoid collision when changing the tool, and prevent the iron slag generated by grinding from entering the interior of the sliding shoe 3;

[0069] 4. A notch 504 is provided on the locking block 5. When the iron slag produced by grinding enters the gap of the disc spring 10, it can be blown away by an air gun, which is convenient for cleaning;

[0070] 5. A bearing 9 is arranged between the disc spring 10 and the connecting rod 1 to avoid wear between the disc spring 10 and the connecting rod 1;

[0071] 6. The newly designed grinding tool for lathe of the present invention has the characteristics of simple structure, convenient operation, long service life, and convenient disassembly and installation.

[0072] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A grinding tool for a lathe, characterized in that: The invention comprises a connecting rod, a ball head connecting rod, a sliding shoe, a grinding wheel, a locking pressure block, a spring, a butterfly spring and a bearing, wherein the connecting rod is provided with an inner hole arranged along the axis thereof, the ball head connecting rod is arranged on the inner hole of the connecting rod, the ball head connecting rod is coaxially mounted with the connecting rod, the ball head connecting rod and the connecting rod are axially slidingly matched, a limiting structure for limiting the axial sliding position of the ball head connecting rod is arranged between the ball head connecting rod and the connecting rod, the ball head connecting rod comprises a ball head portion and an outer circular portion, the sliding shoe is movably connected with the ball head portion of the ball head connecting rod, the outer circular portion of the ball head connecting rod is located in the inner hole of the connecting rod and is slidingly matched therewith, the spring is installed in the inner hole of the connecting rod and is in a compressed state under the pressure of the ball head connecting rod, the locking pressure block is fixedly connected to the grinding wheel, the sliding shoe is clamped between the locking pressure block and the grinding wheel, the bearing is installed on the inner hole of the connecting rod, and the butterfly spring is clamped between the locking pressure block and the bearing; The sliding shoe comprises a head, a middle convex ring and a tail, the middle convex ring of the sliding shoe protrudes radially, the grinding wheel is provided with a central through hole, the head of the sliding shoe is inserted into the central through hole of the grinding wheel, the tail of the sliding shoe is provided with a spherical groove, the ball head of the ball head connecting rod is inserted into the spherical groove of the sliding shoe, the tail of the sliding shoe passes through the locking pressure block and the butterfly spring from front to back, and there is a movable gap between the tail of the sliding shoe and the bearing, so that the sliding shoe can rotate freely; A first step hole is provided at the opening of one end of the inner hole of the connecting rod, and an adjusting screw is connected to the other end, the bearing is mounted on the first step hole, and the spring is clamped between the ball head connecting rod and the adjusting screw; The opening of the first stepped hole is provided with a second stepped hole, one end of the butterfly spring is mounted on the second stepped hole, the adjusting screw comprises an outer circular portion and an outer threaded portion, the diameter of the outer circular portion of the adjusting screw is smaller than the outer threaded portion of the adjusting screw, the outer threaded portion of the adjusting screw is threadedly matched with the inner hole of the connecting rod, and the outer circular portion of the adjusting screw is inserted into the center hole of the spring; The locking pressure block is in the shape of a circular ring, and is provided with a central through hole for the tail of the sliding shoe to pass through, and the two ends of the central through hole of the locking pressure block are respectively provided with a head end step hole and a tail end step hole, one end of the butterfly spring is installed on the tail end step hole, and the middle convex ring of the sliding shoe is installed on the head end step hole; The lathe grinding tool is installed on the tool holder of the lathe, the workpiece is installed on the spindle of the lathe, the workpiece is moved and the end face of the workpiece is fitted to the grinding surface of the grinding wheel. The workpiece is driven to rotate at high speed by the spindle of the lathe. The workpiece rotates actively, driving the lathe grinding tool to rotate passively, thereby realizing the grinding of the end face of the workpiece.

2. The grinding tool for a lathe according to claim 1, characterized in that: The limiting structure includes a limiting screw. The ball head connecting rod is provided with a keyway for limiting its axial sliding position. The keyway is arranged along the axial direction of the ball head connecting rod. The limiting screw passes through the connecting rod radially and is inserted into the keyway.

3. The grinding tool for a lathe according to claim 1, characterized in that: A spiral groove capable of storing lubricating oil is provided on the ball head of the ball head connecting rod, and a lubricating oil channel is provided on the outer circumference of the ball head connecting rod, and the lubricating oil channel is communicated with the spiral groove.

4. The grinding tool for a lathe according to claim 1, characterized in that: The locking pressure block is connected with a pressing cover via a locking bolt, and the pressing cover is locked on the outer side of the grinding wheel.

5. The grinding tool for a lathe according to claim 4, characterized in that: The head end face of the locking pressure block is tightly attached to the inner side face of the grinding wheel, the tail end of the locking pressure block is provided with a notch capable of blowing out tool residues, the notch is communicated with the tail end step hole, the grinding wheel is a bowl-shaped grinding wheel, the clamping cover is tightly attached to the bottom end face of the bowl of the bowl-shaped grinding wheel, the outer side face of the bowl edge of the bowl-shaped grinding wheel is a grinding processing surface, and the sliding shoe is an alloy copper sliding shoe.

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