Keyway broaching device for inner hole of workpiece

Abstract

The application provides a workpiece inner hole key groove plunge cutting device, which comprises a seat body, a tool holder and a first driving member. The seat body is provided with a first abutting portion and a second abutting portion. At least one of the first abutting portion and the second abutting portion is movable along the radial direction of the inner hole of the workpiece relative to the seat body, and the first abutting portion and the second abutting portion are used for abutting to the inner wall of the inner hole of the workpiece to fix the seat body. The tool holder is slidingly connected to the seat body, and the tool holder is provided with a plunge cutter. The first driving member is connected between the seat body and the tool holder, and the first driving member is used for driving the tool holder and the plunge cutter to move along the axial direction of the inner hole of the workpiece. The workpiece inner hole key groove plunge cutting device disclosed by the application can be quickly installed and aligned, and the key groove is more convenient to process, which helps to reduce the production cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of keyway processing, and particularly relates to a workpiece inner hole keyway plug cutting device. BACKGROUND

[0002] Belt conveyors are important equipment in many industrial fields, and the main drive roller and the redirection roller are the core components of the belt conveyor, responsible for driving and guiding the operation of the belt. In the manufacturing process of the roller, the keyway is inserted into the hub hole, which is a key processing step to ensure the accurate fit and transmission effect of the main drive roller or the redirection roller with other components.

[0003] However, due to the long axial length of the main drive roller and the redirection roller, it is not easy to fix them, which makes the keyway processing complex and difficult. In the traditional processing method, the roller needs to be transported to a factory with a heavy-duty slotter for plug cutting processing, and a special clamp needs to be set to fix the roller. This processing method not only prolongs the production cycle of the roller, but also increases the production cost. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the related art. To this end, the workpiece inner hole keyway plug cutting device provided by the embodiments of the present application can be quickly installed and aligned, and the inner hole keyway can be more conveniently processed, which helps to reduce production costs.

[0005] The workpiece inner hole keyway plug cutting device provided by the embodiments of the present application comprises:

[0006] a seat body, the seat body is provided with a first abutting portion and a second abutting portion, at least one of the first abutting portion and the second abutting portion is movable relative to the seat body along the radial direction of the workpiece inner hole, and the first abutting portion and the second abutting portion are used for abutting against the inner wall of the workpiece inner hole to fix the seat body;

[0007] a tool holder, the tool holder is slidingly connected to the seat body, and the tool holder is provided with a plug tool;

[0008] a first driving member, the first driving member is connected between the seat body and the tool holder, and the first driving member is used for driving the tool holder and the plug tool to move along the axial direction of the workpiece inner hole.

[0009] The workpiece inner hole keyway plug cutting device provided in the embodiments, by abutting the first abutting portion and the second abutting portion on the inner wall of the workpiece inner hole, the installation and alignment of the plug cutting device are more quick, the inner hole keyway can be more conveniently processed, which helps to reduce production costs.

[0010] In some embodiments, the base includes a first plate and a second plate arranged in parallel with each other. The first plate and the second plate extend axially along the inner hole of the workpiece. The first abutment portion is fixed to the first plate. At least one second driving member is provided on the second plate. The second driving member extends radially along the inner hole of the workpiece. The second abutment portion is the movable end of the second driving member.

[0011] In some embodiments, the first abutting portion is located on the outer surface of the first plate body on the side opposite to the second plate body, and the second driving member is a hydraulic cylinder, a linear motor, or a threaded adjusting column.

[0012] In some embodiments, there are two second driving members, and the two second driving members are arranged at an angle α around the axis of the inner hole of the workpiece, and 90°≤α<180°.

[0013] In some embodiments, a step is provided on the first plate, the step protruding from the first plate toward one side of the edge of the inner hole of the workpiece, and the step abutting against the end face of the inner hole of the workpiece to restrict the movement of the seat.

[0014] In some embodiments, the tool holder is provided with a third driving member, the insert tool is connected to the output end of the third driving member, and the third driving member is used to adjust the cutting thickness of the insert tool.

[0015] In some embodiments, the tool holder includes a first frame, a second frame, and a tool holder. The first frame is slidably connected to the base and connected to the first drive member. The second frame is connected between the first frame and the tool holder. The insert tool is mounted on the tool holder, and the tool holder is radially movable or rotatable relative to the first frame along the inner hole of the workpiece.

[0016] In some embodiments, the tool holder further includes a first screw and a second screw, the second frame is slidably connected to the first frame along a first direction, the first screw is connected between the first frame and the second frame, the tool holder is slidably connected to the second frame along a second direction, and the second screw is connected between the tool holder and the first frame or between the tool holder and the second frame, wherein both the first direction and the second direction are perpendicular to the axial direction of the inner hole of the workpiece.

[0017] In some embodiments, the base is provided with a dovetail groove that extends along the axial direction of the workpiece, and the tool holder is provided with a dovetail section that is slidably connected to the dovetail groove.

[0018] In some embodiments, a first hinge seat is provided on the base, a second hinge seat is provided on the tool holder, and the two ends of the first drive member are correspondingly connected to the first hinge seat and the second hinge seat.

[0019] In some embodiments, the workpiece inner hole keyway cutting device further includes a power supply component for providing energy to the first driving member, which is configured as a jack, a hydraulic cylinder, or a linear motor. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the workpiece inner hole keyway cutting device provided in the embodiment of the present invention being assembled on the workpiece.

[0021] Figure 2 This is a three-dimensional schematic diagram of the workpiece inner hole keyway cutting device provided in an embodiment of the present invention.

[0022] Figure 3 yes Figure 2 The workpiece inner hole keyway cutting device shown is a three-dimensional schematic diagram from another angle.

[0023] Figure 4 This is an exploded view of the base body in the workpiece inner hole keyway sawing device provided in an embodiment of the present invention.

[0024] Figure 5 This is a three-dimensional schematic diagram of the tool holder in the workpiece inner hole keyway sawing device provided in an embodiment of the present invention.

[0025] Figure 6 yes Figure 5 The diagram shows a three-dimensional representation of the tool holder from another angle.

[0026] Figure 7 This is an exploded view of the tool holder in the workpiece inner hole keyway planing device provided in an embodiment of the present invention.

[0027] Reference numerals: 10, inner hole of workpiece; 101, keyway;

[0028] 1. Base; 11. First abutment part; 12. Second abutment part; 13. First plate; 131. Platform stage; 132. Dovetail groove; 133. Slot; 14. Second plate; 141. First connecting plate; 142. Second connecting plate; 143. Third connecting plate; 15. Second driving component; 16. First stop part; 161. First side plate; 17. Second stop part; 171. Second side plate; 18. Third side plate; 181. First hinge seat;

[0029] 2. Tool holder; 21. First frame; 211. Dovetail section; 212. Second hinge seat; 213. First hole; 214. Second U-shaped groove; 22. Second frame; 221. First shaft section; 222. Second hole; 223. First U-shaped groove; 23. Tool holder; 231. Tool groove; 232. Positioning pin; 233. Mounting hole; 24. First screw; 241. First locking section; 25. Second screw; 251. Second locking section; 26. Third drive component;

[0030] 3. Inserting the knife;

[0031] 4. First driving component. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment of the invention provides a keyway planing device for a workpiece. The planing device includes a base 1, a tool holder 2, and a first driving member 4. The base 1 is provided with a first abutting part 11 and a second abutting part 12. At least one of the first abutting part 11 and the second abutting part 12 is movable relative to the base 1 along the radial direction of the inner hole 10 of the workpiece. The first abutting part 11 and the second abutting part 12 are used to abut against the inner wall of the inner hole 10 of the workpiece to fix the base 1. The tool holder 2 is slidably connected to the base 1, and a planing tool 3 is provided on the tool holder 2. The first driving member 4 is connected between the base 1 and the tool holder 2, and the first driving member 4 is used to drive the tool holder 2 and the planing tool 3 to move axially along the inner hole 10 of the workpiece.

[0034] Specifically, during the use of this planing device, at least one of the first abutting part 11 and the second abutting part 12 moves toward the inner wall of the workpiece inner hole 10, so that the first abutting part 11 and the second abutting part 12 abut against the inner wall of the workpiece inner hole 10, thereby achieving the alignment and positioning of the planing device; then, under the action of the first driving member 4, the tool holder 2 and the planing tool 3 can move along the axial direction of the workpiece inner hole 10 to achieve the machining of the workpiece inner hole keyway 101. The above-mentioned planing device can be installed and aligned more quickly, facilitates the machining of the inner hole keyway 101, and helps to reduce production costs.

[0035] The cutting device provided in this embodiment of the invention can be applied to the production and processing of rollers in belt conveyors. For example, during the processing of the keyway 101 in the roller shaft hole, the cutting device can be directly fixed to the roller shaft hole through the first abutment part 11 and the second abutment part 12. This not only facilitates processing and makes alignment faster, but also reduces the costs incurred due to roller transfer and factory transfer processing, thus helping to reduce production costs.

[0036] In some embodiments, such as Figure 2 and Figure 3 As shown, the base 1 includes a first plate 13 and a second plate 14 arranged in parallel with each other. The first plate 13 and the second plate 14 extend along the axial direction of the inner hole 10 of the workpiece. The first abutting part 11 is fixed to the first plate 13, and the second abutting part 12 is movably connected to the second plate 14.

[0037] Furthermore, the first abutment portion 11 is located on the outer surface of the first plate 13 on the side opposite to the second plate 14. At least one second driving member 15 is provided on the second plate 14, the second driving member 15 is provided to extend radially along the inner hole 10 of the workpiece, and the second abutment portion 12 is the movable end of the second driving member 15.

[0038] Specifically, the inner hole 10 of the workpiece is circular, and the first abutment portion 11 is located at the edge of the outer surface of the first plate 13. The second driving member 15 can extend and retract relative to the second plate 14 to adjust the distance between the second abutment portion 12 and the second plate 14. During use, both the first plate 13 and the second plate 14 are located in the inner hole 10 of the workpiece. The first plate 13 can be placed in the inner hole 10 of the workpiece by being held against by the first abutment portion 11. Then, the second driving member 15 drives the second abutment portion 12 to move, so that the second abutment portion 12 abuts against the side wall of the inner hole 10 of the workpiece, thereby realizing the installation and fixation of the seat 1 and facilitating alignment to easily determine the position of the keyway 101 to be processed and the position of the insert 3.

[0039] It should be noted that when the diameter of the inner hole 10 of the workpiece and the width of the first plate 13 are fixed, the chord on which the first plate 13 is located and the angle corresponding to the chord are also fixed. Therefore, the position of the insert 3 in the inner hole 10 of the workpiece is also fixed, making alignment more convenient.

[0040] Of course, in some embodiments, both the first abutting part 11 and the second abutting part 12 can move relative to the seat body 1. That is, during use, by adjusting the extension length of the first abutting part 11 and the second abutting part 12 relative to the seat body 1, the position of the insert 3 can be adjusted, thereby facilitating the alignment and adjustment of the position of the insert 3, and thus facilitating the processing of the keyway 101.

[0041] In some embodiments, the second drive member 15 is a hydraulic cylinder, a linear motor, or a threaded adjusting column. For example, when the second drive member 15 is a threaded adjusting column, a threaded hole is provided on the second plate 14, and the threaded adjusting column can be threadedly connected to the threaded hole of the second plate 14. During use, the operator can rotate the threaded adjusting column to move it from the center of the workpiece inner hole 10 towards the inner wall to abut against the inner wall of the workpiece inner hole 10.

[0042] When the second driving component 15 is a hydraulic cylinder or a linear motor, it can be mounted and fixed to the second plate 14, thereby controlling the operation of the second driving component 15 to cause the second abutment portion 12 to extend relative to the second plate 14, thus achieving the mounting and fixing of the seat 1. It is conceivable that in some other embodiments, the first abutment portion 11 may also be configured as a structure or component similar to the second abutment portion 12, which will not be elaborated here.

[0043] In some embodiments, two second drive members 15 are provided, and the two second drive members 15 are arranged at an included angle α about the axis of the inner hole 10 of the workpiece, where 90°≤α<180°. This facilitates the alignment and positioning of the sawing device when the operator moves radially along the inner hole 10 of the workpiece using the second drive members 15. For example, the included angle α can be set to 90°, 120°, or 150°, which not only facilitates the adjustment of the second drive members 15 but also allows for the alignment of the sawing device and the adjustment of the cutting thickness of the saw 3.

[0044] In some embodiments, such as Figure 2 As shown, multiple second driving members 15 can be arranged at intervals along the axial direction of the workpiece inner hole 10. For example, three second driving members can be arranged at intervals along the axial direction of the workpiece inner hole 10, that is, the three second driving members 15 are located at the left end, middle, and right end of the workpiece inner hole 10, respectively, to reduce the possibility of the seat 1 shifting during the operation of the inserter 3. Of course, the number of second driving members 15 can be set or activated according to the axial length of the workpiece inner hole 10. For example, when the axial length of the workpiece inner hole 10 is small, only the second driving members 15 on one side and the middle side can be activated.

[0045] Of course, in some other embodiments, the second drive member can also be combined with the above two arrangement methods, that is, two second drive members 15 on the same radial plane of the inner hole 10 of the workpiece are grouped together, and multiple groups of second drive members 15 are arranged at intervals along the axial direction of the inner hole 10 of the workpiece to ensure that the seat 1 is stably installed relative to the workpiece during the cutting process.

[0046] In some embodiments, a step 131 is provided on the first plate 13. The step 131 protrudes from the first plate 13 toward one side of the edge of the inner hole 10 of the workpiece, and the step 131 is used to abut against the end face of the inner hole 10 of the workpiece to restrict the movement of the seat 1. Specifically, the step 131 is a protrusion protruding from the end or outer surface of the first plate 13 toward the wall of the inner hole 10 of the workpiece. During use, the step 131 can abut against the end face of the inner hole 10 of the workpiece to prevent the seat 1 from moving axially along the inner hole 10 of the workpiece during the sawing process, which helps to improve the accuracy of the sawing.

[0047] Optionally, the stage 131 and the first plate 13 can be configured as a single unit, that is, the stage 131 and the first plate 13 are arranged in an L-shape to ensure that the stage 131 has strong structural strength.

[0048] In some embodiments, such as Figure 2 , Figure 3 and Figure 4 As shown, a dovetail groove 132 is provided on the base 1, which extends along the workpiece axial direction. A dovetail section 211 is provided on the tool holder 2, which is slidably connected in the dovetail groove 132. This ensures the smooth sliding of the tool holder 2 and also ensures the radial position of the tool holder 2 in the inner hole 10 of the workpiece, thus ensuring the machining accuracy of the insert tool 3.

[0049] Furthermore, the base 1 also includes a first stop 16 and a second stop 17, which are located at the two ends of the dovetail groove 132 to limit the travel of the tool holder 2.

[0050] In this embodiment, a dovetail groove 132 is provided on the first plate 13, and a slot 133 for the inserting tool 3 to pass through is also provided on the first plate 13, and the length of the slot 133 is greater than or equal to the length of the dovetail groove 132. The tool holder 2 is slidably installed in the dovetail groove 132, and the tool holder 2 is located between the first plate 13 and the second plate 14. The inserting tool 3 is movably inserted in the slot 133, and under the driving action of the first driving member 4, the inserting tool 3 can move along the length direction of the slot 133. It should be noted that the length direction of the slot 133 is consistent with the axial direction of the inner hole 10 of the workpiece.

[0051] Furthermore, a first side plate 161, a second side plate 171, and a third side plate 18 may be provided between the first plate 13 and the second plate 14. The first side plate 161 and the second side plate 171 are located at both ends of the dovetail groove 132, respectively, to form a first stop portion 16 and a second stop portion 17. The third side plate 18 is located on the side of the second side plate 171 opposite to the first side plate 161, that is, the second side plate 171 is located between the first side plate 161 and the third side plate 18. One end of the first driving member 4 can be connected to the first side plate 161, and the other end of the second driving member 15 can be connected to the tool holder 2 to realize the driving function of the first driving member 4. In addition, the first side plate 161, the second side plate 171, and the third side plate 18 can also be used to support and fix the first plate 13 and the second plate 14.

[0052] Furthermore, the second plate 14 includes a first connecting plate 141, a second connecting plate 142, and a third connecting plate 143. The first connecting plate 141 and the third connecting plate 143 are located on both sides of the second connecting plate 142, and the lengths of the first connecting plate 141 and the third connecting plate 143 are both greater than the length of the second connecting plate 142. The two ends of the first connecting plate 141 are connected to the first side plate 161 and the third side plate 18, respectively. The two ends of the third connecting plate 143 are connected to the first side plate 161 and the second side plate 171, respectively. The two ends of the second connecting plate 142 are connected between the first side plate 161 and the second side plate 171, respectively.

[0053] Optionally, the second connecting plate 142 is located between the first side plate 161 and the second side plate 171, and the first connecting plate 141 and the third connecting plate 143 are symmetrically located on both sides of the second connecting plate 142. Figure 2 and Figure 3 As shown, the second driving component 15 is mounted on the second connecting plate 142. Of course, depending on the number and position of the second driving components 15, they can also be correspondingly arranged on the first connecting plate 141 and the third connecting plate 143. For example, when there are two second driving components 15, the two second driving components can be correspondingly arranged on the first connecting plate 141 and the third connecting plate 143.

[0054] In some other embodiments of the present invention, the first plate 13 and the second plate 14 may also be configured as one piece, that is, the first abutting part 11 and the second abutting part 12 may be located on opposite sides of the base 1, thereby reducing the size of the cutting device and reducing the weight of the cutting device.

[0055] In some embodiments, such as Figure 3 As shown, a first hinge seat 181 is provided on the base 1, and a second hinge seat 212 is provided on the tool holder 2. The two ends of the first drive member 4 are correspondingly connected to the first hinge seat 181 and the second hinge seat 212. The first drive member 4 can be hinged between the base 1 and the tool holder 2 to ensure sufficient freedom between the first drive member 4 and the base 1, and between the first drive member 4 and the tool holder 2, thereby reducing the impact of resistance during the cutting process on the stability of the base 1 installation.

[0056] Furthermore, the first hinge seat 181 and the second hinge seat 212 can be configured as a Y-shaped structure. The end of the first driving member 4 can be inserted into the two connectors of the Y-shaped structure. The first hinge seat 181 and the first driving member 4, the second hinge seat 212 and the first driving member 4 can be connected by a pin to ensure the structural strength of the connection and facilitate disassembly and assembly.

[0057] Furthermore, the first drive element 4 is configured as a jack, a hydraulic cylinder, or a linear motor. The planing device also includes a power supply assembly for providing energy to the first drive element 4. For example, the first drive element 4 is a jack, and the power supply assembly may include an oil pump station and a directional valve, which are connected via a hose. During operation, the operator can control the directional valve to move the piston rod of the jack to its initial position; then, by operating the directional valve again, the piston rod of the jack reciprocates axially along the inner hole 10 of the workpiece, completing the machining of the keyway 101 in the inner hole of the workpiece.

[0058] In some embodiments, such as Figure 5 , Figure 6 and Figure 7 As shown, the tool holder 2 includes a first frame 21, a second frame 22, and a tool holder 23. The first frame 21 is slidably connected to the base 1 and connected to the first drive member 4. The second frame 22 is connected between the first frame 21 and the tool holder 23. The insert tool 3 is installed on the tool holder 23, and the tool holder 23 is movable or rotatable relative to the first frame 21 along the radial direction of the inner hole 10 of the workpiece.

[0059] Furthermore, the tool holder 2 also includes a first screw 24 and a second screw 25. The second frame 22 is slidably connected to the first frame 21 along a first direction. The first screw 24 is connected between the first frame 21 and the second frame 22. The tool holder 23 is slidably connected to the second frame 22 along a second direction. The second screw 25 is connected between the tool holder 23 and the first frame 21 or between the tool holder 23 and the second frame 22. Both the first direction and the second direction are parallel to the radial direction of the inner hole 10 of the workpiece.

[0060] In this embodiment, the second frame 22 is provided with a first U-shaped groove 223, and the first screw 24 is threadedly connected to the first frame 21. The first screw 24 is provided with a first locking section 241, and the first screw 24 is connected to the first U-shaped groove 223 on the second frame 22 through the first locking section 241, making the movement of the second frame 22 adjustable in the first direction and more convenient to control. The first frame 21 is provided with a second U-shaped groove 214, and the second screw 25 is provided with a second locking section 251. The second screw 25 is threadedly connected to the tool holder 23, and the second screw 25 is connected to the second U-shaped groove 214 on the first frame 21 through the second locking section 251, making the movement of the tool holder 23 adjustable in the second direction and more convenient to control. Furthermore, the first and second directions are perpendicular to each other, and the position and cutting thickness of the insert 3 can be adjusted by adjusting the first screw 24 and the second screw 25.

[0061] Specifically, the dovetail section 211 and the second hinge seat 212 are both disposed on the first frame 21. The first driving member 4 can drive the first frame 21 to slide relative to the first plate 13 through the cooperation of the dovetail section 211 and the dovetail groove 132, thereby realizing the sliding of the tool holder 2 relative to the seat 1.

[0062] In addition, the first frame 21 is provided with a first hole 213, which is arranged side by side with the first screw 24. The second frame 22 is provided with a first shaft section 221, which is inserted into the first hole 213. The second frame 22 is provided with a second hole 222, into which the tool holder 23 is movably inserted to ensure the smooth sliding of the second frame 22 and the tool holder 23. Optionally, both the first hole 213 and the second hole 222 are square holes, and the first shaft section 221 and the tool holder 23 have columnar structures corresponding to the square holes, which can prevent deflection during the movement of the second frame 22 and the tool holder 23. For example, the arrangement of the tool holder 23 and the second hole 222 can ensure that the cutting edge of the insert 3 always moves along the axial direction of the inner hole 10 of the workpiece, preventing the insert 3 from deflecting.

[0063] In some embodiments, the tool holder 23 is further provided with a tool groove 231, and the insert 3 is at least partially received within the tool groove 231. A positioning post 232 is provided on the side wall of the tool groove 231, and the positioning post 232 is used to fix the insert 3. During use, the operator can adjust the extension length of the insert 3 as needed, and fix the insert 3 into the tool groove 231 of the tool holder 23 by means of the positioning post 232, so as to ensure that the insert 3 has good strength and rigidity, thereby helping to ensure the efficiency of insert machining.

[0064] Optionally, the positioning post 232 can be provided as a fixing screw or a positioning pin, and the side wall of the knife groove 231 is provided with a mounting hole 233. The positioning post 232 can be installed in the mounting hole 233 to achieve the fixed installation of the insert knife 3.

[0065] In some embodiments, a third driving member 26 is provided on the tool holder 2, and a cutting tool 3 is mounted on the output end of the third driving member 26. The third driving member 26 is used to adjust the cutting thickness of the cutting tool 3. The third driving member 26 is arranged radially along the inner hole 10 of the workpiece, and the third driving member 26 drives the cutting tool 3 to move radially along the inner hole 10 of the workpiece to adjust the cutting thickness of the cutting tool 3.

[0066] Furthermore, the third drive component 26 can be configured as a hydraulic cylinder or a linear motor, and can be mounted on the tool holder 23. After the operator moves the inserter 3 to the cutting position using the first screw 24 and the second screw 25, the first drive component 4 can drive the inserter 3 to work, and the cutting thickness of the inserter 3 can be adjusted by the third drive component 26 to gradually complete the machining of the workpiece inner hole 10. Of course, in some embodiments, the operator can also adjust the cutting thickness of the inserter 3 by controlling the movement of the first screw 24 and the second screw 25.

[0067] It should be noted that the first drive component 4, the second drive component 15, and the third drive component 26 can be set as the same type of component. For example, different specifications of the same type of component can be selected according to the different driving forces required, which helps to reduce production costs.

[0068] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 invention and simplifying the description, and are not intended to indicate or imply that the device or element 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 invention.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0071] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0072] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tool for planing keyways in the inner hole of a workpiece, characterized in that, include: A base body, wherein the base body is provided with a first abutting part and a second abutting part, at least one of the first abutting part and the second abutting part is movable relative to the base body along the radial direction of the inner hole of the workpiece, and the first abutting part and the second abutting part are used to abut against the inner wall of the inner hole of the workpiece to fix the base body. A tool holder, which is slidably connected to the base, and a tool holder is provided on the tool holder; A first driving member is connected between the base and the tool holder, and the first driving member is used to drive the tool holder and the insert to move axially along the inner hole of the workpiece; The base includes a first plate and a second plate arranged in parallel with each other. The first plate and the second plate extend axially along the inner hole of the workpiece. The first abutting part is fixed to the first plate. At least one second driving member is provided on the second plate. The second driving member extends radially along the inner hole of the workpiece. The second abutting part is the movable end of the second driving member. The first abutting part is located on the outer surface of the first plate body away from the second plate body. There are two second driving members, and the two second driving members are arranged at an included angle α around the axis of the inner hole of the workpiece, and 90°≤α<180°. A platform is provided on the first plate body. The platform protrudes from the first plate body to the edge of the inner hole of the workpiece. The platform is used to abut against the end face of the inner hole of the workpiece to restrict the movement of the seat body.

2. The workpiece inner hole keyway cutting device according to claim 1, characterized in that, The second driving component is a hydraulic cylinder, a linear motor, or a threaded adjusting column.

3. The workpiece inner hole keyway cutting device according to claim 1, characterized in that, The tool holder is equipped with a third driving component, and the insert tool is connected to the output end of the third driving component. The third driving component is used to adjust the cutting thickness of the insert tool.

4. The workpiece inner hole keyway cutting device according to claim 1, characterized in that, The tool holder includes a first frame, a second frame, and a tool holder. The first frame is slidably connected to the base and connected to the first drive member. The second frame is connected between the first frame and the tool holder. The insert tool is mounted on the tool holder, and the tool holder is movable or rotatable relative to the first frame along the radial direction of the inner hole of the workpiece.

5. The workpiece inner hole keyway cutting device according to claim 4, characterized in that, The tool holder further includes a first screw and a second screw. The second frame is slidably connected to the first frame along a first direction, and the first screw is connected between the first frame and the second frame. The tool holder is slidably connected to the second frame along a second direction, and the second screw is connected between the tool holder and the first frame or between the tool holder and the second frame. Both the first direction and the second direction are perpendicular to the axial direction of the inner hole of the workpiece.

6. The workpiece inner hole keyway cutting device according to claim 1, characterized in that, The base is provided with a dovetail groove, which extends along the axial direction of the workpiece. The tool holder is provided with a dovetail section, which is slidably connected to the dovetail groove.

7. The workpiece inner hole keyway cutting device according to any one of claims 1 to 6, characterized in that, The base is provided with a first hinge seat, the tool holder is provided with a second hinge seat, and the two ends of the first drive member are correspondingly connected to the first hinge seat and the second hinge seat. And / or, the workpiece inner hole keyway cutting device further includes a power supply component, which is used to provide energy to the first driving member, which is a jack, a hydraulic cylinder, or a linear motor.

Images