A tool for slotting an inner hole of a drill press

Abstract

The application discloses a hole slotting tool for a drilling machine, and relates to the technical field of machining.The hole slotting tool comprises a box body, a fixing block, a driving rod, a drill handle, a slotting assembly, a first positioning piece and a second positioning piece, a mounting cavity is vertically arranged in the box body, the fixing block is fixedly arranged in the mounting cavity, the driving rod is slidingly arranged in the mounting cavity, the drill handle is arranged at the upper end of the box body, the lower end of the drill handle is fixedly connected with the upper end of the driving rod, the drill handle drives the driving rod to slide in the mounting cavity, a mounting hole is horizontally arranged on the drill handle, the slotting assembly is arranged in the fixing block and is used for drilling a workpiece, the first positioning piece is fixedly connected with the fixing block and is used for achieving preliminary positioning of the fixing block, and the second positioning piece is fixedly connected with the circumferential side of the fixing block and is used for achieving further positioning of the fixing block.The hole slotting tool has the effect of improving the stability of the hole slotting tool.

Description

Technical Field

[0001] This application relates to the field of machining technology, and in particular to an internal grooving tool for a drilling machine. Background Technology

[0002] Internal grooving tools are widely used in machining, automotive manufacturing, aerospace, electronic component manufacturing, and precision instrument manufacturing. They are primarily used to machine grooves into the internal diameter of workpieces to meet specific design and functional requirements. Due to their high precision, high efficiency, and strong adaptability, they have become an indispensable piece of equipment in the manufacturing industry.

[0003] A related drilling machine internal grooving tool includes a machine body, inside which a drive assembly and a cutting assembly are installed. The cutting assembly is fixedly mounted at the bottom of the drive assembly. In use, the workpiece to be processed is placed within the working range of the cutting assembly, and then the drive assembly is activated, causing it to rotate and cut the workpiece.

[0004] However, due to the poor stability of the machine body during cutting, the machine body shakes when the internal hole grooving tool is cutting, which causes the cutting trajectory of the cutting components to deviate and reduces the machining quality of the workpiece by the internal hole grooving tool. Utility Model Content

[0005] To improve the stability of internal hole grooving tools, this application provides an internal hole grooving tool for drilling machines.

[0006] This application provides an internal grooving tool for a drilling machine, which adopts the following technical solution: An internal grooving tool for a drilling machine, comprising: The housing has a vertically arranged mounting cavity inside. A fixing block is fixedly disposed within the mounting cavity; A drive rod, which is slidably disposed within the mounting cavity; A drill shank is provided on the upper end of the housing. The lower end of the drill shank is fixedly connected to the upper end of the drive rod. The drill shank drives the drive rod to slide within the mounting cavity. A mounting hole is provided horizontally on the drill shank. A grooving assembly, which is disposed within the fixing block, is used for drilling holes in the workpiece; The first positioning element is fixedly connected to the fixed block and is used to achieve the initial positioning of the fixed block; The second positioning element is fixedly connected to the periphery of the fixed block and is used to further position the fixed block.

[0007] By adopting the above technical solution, the housing and mounting cavity are used to install the fixing block, which is used to install the grooving assembly, the first positioning element, and the second positioning element. The mounting hole is used to connect the drilling machine and the internal grooving tool. The drive rod and drill shank are used to convert the movement of the drilling machine into its own movement, thereby driving the grooving assembly to process the workpiece. The workpiece has a main hole and a secondary hole. The first positioning element is placed in the secondary hole, and the fixing block is moved so that the second positioning element is placed in the main hole, thereby positioning the internal grooving tool and improving its stability. The drilling machine is started, causing it to push the drill shank vertically downward, which in turn pushes the drive rod to slide closer to the workpiece within the mounting cavity, thus driving the grooving assembly to process the main hole.

[0008] Optionally, a positioning groove is horizontally provided on the periphery of the fixing block, and the first positioning element includes: A positioning plate, which is fixedly connected to the fixing block, and the positioning plate is perpendicular to the axis of the box body; A positioning pin is inserted into the positioning plate and fixedly connected to it. The axis of the positioning pin is perpendicular to the positioning plate.

[0009] By adopting the above technical solution, the positioning plate is used to install the positioning pin, and the positioning pin is used to achieve the initial positioning of the grooving tool.

[0010] Optionally, the second positioning element includes: A bearing, wherein the bearing is sleeved on the periphery of the fixed block, and the inner periphery of the bearing is fixedly connected to the outer periphery of the fixed block; A positioning block is fixedly disposed on the outer periphery of the bearing.

[0011] By adopting the above technical solution, the bearing is used to realize the rotational connection between the positioning block and the fixed block, and the positioning block is used to further position the grooving tool.

[0012] Optionally, the fixed block is vertically provided with a driving cavity and a driven cavity, the driving cavity is located above the driven cavity, and the driving cavity communicates with the driven cavity. The grooving assembly includes: A driving component, which is slidably disposed within the driving cavity, is used to convert the motion of the drill shank into its own motion; The driven member is slidably disposed in the driven cavity and is fixedly connected to the driving member; A grooving component is slidably disposed within the driven cavity and fixedly connected to the driven component, used to perform grooving of the inner hole.

[0013] By adopting the above technical solution, the driving cavity is set to realize the sliding of the driving component, the driven cavity is set to realize the sliding of the driven component, and the driving component and the driven component are set to convert the sliding of the driving rod into the sliding of the grooving component, thereby realizing the processing of the workpiece.

[0014] Optionally, the driving element includes: A movable plate is slidably disposed within the drive cavity, with the top end of the movable plate contacting the bottom end of the drive rod; A driving block, which is slidably disposed within the driving cavity and fixedly disposed at the bottom end of the moving plate; A first spring is sleeved around the drive block, with one end of the first spring fixedly connected to the bottom end of the moving plate and the other end of the first spring fixedly connected to the fixed block.

[0015] By adopting the above technical solution, the movable plate and the drive block are configured to transform the sliding of the drive rod into its own sliding within the drive cavity, thereby driving the driven member to slide within the driven cavity. The first spring is used to push the movable plate, causing the movable plate to contact the bottom end of the drive rod. The drill shank pushes the drive rod to slide closer to the workpiece within the mounting cavity, causing the drive rod to push the movable plate to slide closer to the workpiece within the drive cavity. This causes the movable plate to push the drive block to slide closer to the workpiece within the drive cavity, causing the bottom end of the movable plate to push the first spring to contract within the drive cavity. The drill shank pulls the drive rod to slide away from the workpiece within the mounting cavity, causing the drive rod to move away from the movable plate. Due to the elastic recovery effect of the first spring, the first spring pushes the movable plate to slide away from the workpiece within the drive cavity, thereby causing the movable plate to drive the drive block to slide away from the workpiece within the drive cavity.

[0016] Optionally, the driven member includes: The driven column is slidably disposed in the driven cavity, the top end of the driven column is fixedly connected to the bottom end of the driving block, and the axis of the driven column is consistent with the axis of the moving plate. The driven block is slidably disposed within the driven cavity, and the axis of the driven block is perpendicular to the axis of the driven column.

[0017] By adopting the above technical solution, the driven column is used to convert the motion of the driving block into its own motion, thereby pushing the driven block to slide. When the driving block slides towards the workpiece in the driving cavity, since the top end of the driven column is fixedly connected to the bottom end of the driving block, the driving block pushes the driven column to slide towards the workpiece in the driven cavity. Due to the setting of the first guide slope and the second guide slope, the driven column pushes the driven block to slide towards the workpiece in the driven cavity.

[0018] When the drive block slides away from the workpiece in the drive cavity, the top end of the driven column is fixedly connected to the bottom end of the drive block, causing the drive block to pull the driven column to slide away from the workpiece in the driven cavity. Due to the setting of the first guide slope and the second guide slope, the driven column pushes the driven block to slide closer to the workpiece in the driven cavity.

[0019] Optionally, the driven column is provided with a first guide slope at its bottom end, and the driven block is provided with a second guide slope at one end near the first guide slope, with the second guide slope in contact with the first guide slope.

[0020] By adopting the above technical solution, the first guide slope and the second guide slope are configured to convert the motion of the driven column into the motion of the driven block. When the driving block pushes the driven column to slide closer to the workpiece in the driven cavity, the first guide slope and the second guide slope cause the driven column to push the driven block to slide closer to the workpiece in the driven cavity.

[0021] Optionally, the fixed block has a horizontal sliding groove on the side near the driven block, and the grooving member includes: A second spring is disposed in the sliding groove. One end of the second spring is fixedly connected to the fixed block, and the other end of the second spring is fixedly connected to the driven block. The axis of the second spring is horizontal to the axis of the driven block. A grooving cutter is inserted into the fixed block and slidably connected to the fixed block. The grooving cutter is also fixedly connected to the driven block and is perpendicular to the axis of the driven column.

[0022] By adopting the above technical solution, the grooving tool is used to achieve the requirement of internal hole grooving, and the second spring is used to push the driven block, so that the second guide slope comes into contact with the first guide slope.

[0023] Optionally, a self-lubricating sleeve is fixedly provided inside the fixing block.

[0024] By adopting the above technical solution, the self-lubricating sleeve is used to extend the service life of mechanical parts inside the grooving tool.

[0025] Optionally, a gasket is provided around the periphery of the fixing block, the gasket is slidably connected to the positioning groove, and the gasket is in contact with the positioning plate.

[0026] By adopting the above technical solution, the shims are used to adjust the depth of cut, and the thickness of the shims can affect the depth of cut of the tool. By replacing shims of different thicknesses, the depth of cut can be easily adjusted to meet the machining requirements of different workpieces.

[0027] In summary, the present invention provides an internal grooving tool for a drilling machine, which has at least one of the following beneficial technical effects: 1. The housing and mounting cavity are designed to install a fixing block, which in turn mounts the grooving assembly, the first positioning element, and the second positioning element. The mounting hole facilitates the connection between the drilling machine and the internal grooving tool. The drive rod and drill shank convert the drilling machine's motion into its own motion, thereby driving the grooving assembly to process the workpiece. The workpiece contains a main hole and a secondary hole. The first positioning element is placed in the secondary hole, and the fixing block is moved so that the second positioning element is placed in the main hole, thus positioning the internal grooving tool and improving its stability. Starting the drilling machine causes it to push the drill shank vertically downwards, which in turn pushes the drive rod to slide closer to the workpiece within the mounting cavity. This causes the drive rod to drive the grooving assembly to process the main hole.

[0028] 2. The movable plate and drive block are designed to convert the sliding of the drive rod into its own sliding within the drive cavity, thereby driving the driven component to slide within the driven cavity. The first spring is used to push the movable plate, causing it to contact the bottom end of the drive rod. The drill shank pushes the drive rod to slide closer to the workpiece within the mounting cavity, causing the drive rod to push the movable plate to slide closer to the workpiece within the drive cavity. This causes the movable plate to push the drive block to slide closer to the workpiece within the drive cavity, resulting in the bottom end of the movable plate pushing the first spring to contract within the drive cavity. The drill shank pulls the drive rod to slide away from the workpiece within the mounting cavity, causing the drive rod to move away from the movable plate. Due to the elastic recovery effect of the first spring, the first spring pushes the movable plate to slide away from the workpiece within the drive cavity, thereby causing the movable plate to drive the drive block to slide away from the workpiece within the drive cavity. Attached Figure Description

[0029] Figure 1 A cross-sectional view of the housing in an internal hole grooving tool for a drilling machine, provided as an embodiment of this utility model; Figure 2 A cross-sectional view of an internal grooving tool for a drilling machine provided in an embodiment of this utility model; Figure 3 for Figure 2 Enlarged view of section A.

[0030] Explanation of the markings in the image: 1. Housing; 11. Mounting cavity; 2. Fixing block; 3. Drive rod; 4. Drill shank; 41. Mounting hole; 5. Grooving assembly; 51. Drive component; 511. Moving plate; 512. Drive block; 513. First spring; 52. Follower; 521. Follower column; 522. Follower block; 523. First guide slope; 524. Second guide slope; 53. Grooving component; 531. Second spring; 532. Grooving cutter; 533. Sliding groove; 54. Drive cavity; 55. Follower cavity; 6. First positioning component; 61. Positioning plate; 62. Positioning pin; 63. Positioning groove; 7. Second positioning component; 71. Bearing; 72. Positioning block; 8. Self-lubricating sleeve; 9. Gasket. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0032] Combination Figure 1 and Figure 2 This application discloses an internal grooving tool for a drilling machine, including a housing 1, a fixing block 2, a drive rod 3, a drill shank 4, a grooving assembly 5, a first positioning element 6, and a second positioning element 7. A mounting cavity 11 is vertically arranged inside the housing 1. The fixing block 2 is fixedly arranged inside the mounting cavity 11. The drive rod 3 is slidably arranged inside the mounting cavity 11. The drill shank 4 is located at the upper end of the housing 1, and its lower end is fixedly connected to the upper end of the drive rod 3. The drill shank 4 drives the drive rod 3 to slide within the mounting cavity 11. A mounting hole 41 is horizontally arranged on the drill shank 4. The grooving assembly 5 is arranged inside the fixing block 2 for drilling workpieces. The first positioning element 6 is fixedly connected to the fixing block 2 for initial positioning of the fixing block 2. The second positioning element 7 is fixedly connected to the periphery of the fixing block 2 for further positioning of the fixing block 2. The fixed block 2 is vertically provided with a drive cavity 54 and a driven cavity 55. The drive cavity 54 is located above the driven cavity 55 and is connected to the driven cavity 55. The grooving assembly 5 includes a drive member 51, a driven member 52 and a grooving member 53. The drive member 51 is slidably disposed in the drive cavity 54 and is used to convert the movement of the drill shank 4 into its own movement. The driven member 52 is slidably disposed in the driven cavity 55 and is fixedly connected to the drive member 51. The grooving member 53 is slidably disposed in the driven cavity 55 and is fixedly connected to the driven member 52 and is used to realize the internal hole grooving.

[0033] In this embodiment, the housing 1, the fixing block 2, and the drill shank 4 are all cylindrical. The mounting cavity 11, the mounting hole 41, the driving cavity 54, and the driven cavity 55 are all cylindrical. The diameter of the driving cavity 54 is larger than the diameter of the driven cavity 55. The housing 1 and the mounting cavity 11 are configured to meet the installation requirements of the fixing block 2. This embodiment does not impose specific limitations. The mounting hole 41 is configured to meet the installation requirements between the drilling machine and the internal grooving tool. The driving rod 3 is inverted T-shaped. The horizontal end of the driving rod 3 is perpendicular to the axis of the drill shank 4, and the axis of the vertical end of the driving rod 3 is consistent with the axis of the drill shank 4.

[0034] The workpiece has a main hole and a secondary hole. The first positioning element 6 is placed in the secondary hole, and the fixed block 2 is moved so that the second positioning element 7 is placed in the main hole, thereby positioning the internal hole grooving tool and improving its stability. The drilling machine is started, causing the drilling machine to push the drill shank 4 vertically downward, which in turn pushes the drive rod 3 to slide closer to the workpiece in the mounting cavity 11. This causes the drive rod 3 to push the drive element 51 to slide closer to the workpiece in the drive cavity 54, which in turn pushes the driven element 52 to slide closer to the workpiece in the driven cavity 55. Since the grooving element 53 is fixedly connected to the driven element 52, the grooving element 53 slides closer to the workpiece in the driven cavity 55, thus achieving the machining of the workpiece.

[0035] In practical use, the first positioning member 6 is placed in the secondary hole, and the fixed block 2 is moved so that the second positioning member 7 is placed in the main hole. Then, the drill press and the drill shank 4 are connected through the mounting hole 41. The drill press is started so that the drill press pushes the drill shank 4 to move vertically downward. The drill shank 4 pushes the drive rod 3 to slide in the mounting cavity 11 towards the workpiece. This causes the drive rod 3 to push the drive member 51 to slide in the drive cavity 54 towards the workpiece. In turn, the drive member 51 pushes the driven member 52 to slide in the driven cavity 55 towards the workpiece. Since the grooving member 53 is fixedly connected to the driven member 52, the grooving member 53 slides in the driven cavity 55 towards the workpiece, thereby realizing the processing of the workpiece.

[0036] Combination Figure 1 , Figure 2 and Figure 3Specifically, the driving component 51 includes a movable plate 511, a driving block 512, and a first spring 513. The movable plate 511 is slidably disposed within the driving cavity 54, with its top end contacting the bottom end of the driving rod 3. The driving block 512 is slidably disposed within the driving cavity 54 and fixedly disposed at the bottom end of the movable plate 511. The first spring 513 is sleeved around the periphery of the driving block 512, with one end of the first spring 513 fixedly connected to the bottom end of the movable plate 511 and the other end of the first spring 513 fixedly connected to the fixed block 2. The driven component 52 includes a driven post 521 and a driven block 522. The driven post 521 is slidably disposed within the driven cavity 55, with its top end fixedly connected to the bottom end of the driving block 512. The axis of the driven post 521 is aligned with the axis of the movable plate 511. The driven block 522 is slidably disposed within the driven cavity 55, with its axis perpendicular to the axis of the driven post 521. A first guide slope 523 is provided at the bottom end of the driven column 521, and a second guide slope 524 is provided at the end of the driven block 522 near the first guide slope 523, with the second guide slope 524 contacting the first guide slope 523. A sliding groove 533 is horizontally provided on the side of the fixed block 2 near the driven block 522. The grooving component 53 includes a second spring 531 and a grooving blade 532. The second spring 531 is disposed in the sliding groove 533, with one end fixedly connected to the fixed block 2 and the other end fixedly connected to the driven block 522. The axis of the second spring 531 is horizontal to the axis of the driven block 522. The grooving blade 532 passes through the fixed block 2, is slidably connected to the fixed block 2, and is fixedly connected to the driven block 522. The grooving blade 532 is perpendicular to the axis of the driven column 521. A self-lubricating sleeve 8 is fixedly disposed inside the fixed block 2.

[0037] In this embodiment, the movable plate 511 is cylindrical with a spherical protrusion at its top. The driving block 512 is cylindrical. The spring force of the first spring 513 is sufficient to ensure contact between the movable plate 511 and the bottom end of the driving rod 3. The movable plate 511 and the driving block 512 are configured to slide within the driving cavity 54. The diameter of the movable plate 511 is larger than the diameter of the driving block 512. The driven column 521 and the driven block 522 are both cylindrical. The driven column 521 and the driven block 522 are configured to slide within the driven cavity 55. The first guide slope 523 contacts the second guide slope 524. The first guide slope 523 and the second guide slope 524 are configured to push the driven block 522 to slide within the driven cavity 55. The sliding groove 533 is cylindrical and its arrangement is sufficient to allow the movement of the second spring 531. The elastic force of the second spring 531 is sufficient to allow the second guide slope 524 to contact the first guide slope 523. The grooving cutter 532 is rectangular and its arrangement is sufficient to allow the workpiece to be grooved. This application embodiment does not impose specific limitations.

[0038] The drill shank 4 pushes the drive rod 3 to slide closer to the workpiece in the mounting cavity 11, causing the drive rod 3 to push the moving plate 511 to slide closer to the workpiece in the drive cavity 54. The moving plate 511 then pushes the drive block 512 to slide closer to the workpiece in the drive cavity 54. This causes the bottom end of the moving plate 511 to push the first spring 513 to retract in the drive cavity 54. Since the top end of the driven column 521 is fixedly connected to the bottom end of the drive block 512, the drive block 512 pushes the driven column 521 to slide closer to the workpiece in the driven cavity 55. Due to the arrangement of the first guide slope 523 and the second guide slope 524, the driven column 521 pushes the driven block 522 to slide closer to the workpiece in the driven cavity 55. At this time, the driven block 522 pushes the second spring 531 to retract in the movable groove, causing the driven block 522 to push the grooving cutter 532 to slide closer to the workpiece, thereby making the grooving cutter 532 contact the inner wall of the workpiece, thus achieving grooving of the inner hole.

[0039] The drill shank 4 pulls the drive rod 3 to slide away from the workpiece in the mounting cavity 11, causing the drive rod 3 to move away from the moving plate 511. Due to the elastic recovery of the first spring 513, the first spring 513 pushes the moving plate 511 to slide away from the workpiece in the drive cavity 54. As a result, the moving plate 511 drives the drive block 512 to slide away from the workpiece in the drive cavity 54. Since the top end of the driven column 521 is fixedly connected to the bottom end of the drive block 512, the drive block 512 pulls the driven column 521 to slide away from the workpiece in the driven cavity 55, causing the driven column 521 to move away from the driven block 522. Due to the elastic recovery of the second spring 531, the second spring 531 pushes the driven block 522 to slide closer to the driven column 521 in the driven cavity 55. This causes the second guide slope 524 to contact the first guide slope 523, causing the driven block 522 to drive the grooving cutter 532 to slide away from the workpiece.

[0040] In practical use, the first positioning member 6 is placed in the secondary hole, and the fixed block 2 is moved so that the second positioning member 7 is placed in the main hole. Then, the drill press and the drill shank 4 are connected through the mounting hole 41. The drill press is started, so that the drill shank 4 pushes the drive rod 3 to slide in the mounting cavity 11 towards the workpiece. This causes the drive rod 3 to push the moving plate 511 to slide in the driving cavity 54 towards the workpiece. As a result, the moving plate 511 pushes the drive block 512 to slide in the driving cavity 54 towards the workpiece. This causes the bottom end of the moving plate 511 to push the first spring 513 to contract in the driving cavity 54. Due to the driven column 5 The top end of 21 is fixedly connected to the bottom end of the drive block 512, so that the drive block 512 pushes the driven column 521 to slide closer to the workpiece in the driven cavity 55. Due to the setting of the first guide slope 523 and the second guide slope 524, the driven column 521 pushes the driven block 522 to slide closer to the workpiece in the driven cavity 55. At this time, the driven block 522 pushes the second spring 531 to contract in the movable groove, so that the driven block 522 pushes the grooving knife 532 to slide closer to the workpiece, thereby making the grooving knife 532 contact the inner wall of the workpiece, so as to realize the grooving of the inner hole.

[0041] After the internal grooving is completed, the control drill shank 4 pulls the drive rod 3 to slide away from the workpiece in the mounting cavity 11, causing the drive rod 3 to move away from the moving plate 511. Due to the elastic recovery of the first spring 513, the first spring 513 pushes the moving plate 511 to slide away from the workpiece in the drive cavity 54. As a result, the moving plate 511 drives the drive block 512 to slide away from the workpiece in the drive cavity 54. Since the top end of the driven column 521 is fixedly connected to the bottom end of the drive block 512, the drive block 512 pulls the driven column 521 to slide away from the workpiece in the driven cavity 55, causing the driven column 521 to move away from the driven block 522. Due to the elastic recovery of the second spring 531, the second spring 531 pushes the driven block 522 to slide closer to the driven column 521 in the driven cavity 55. This causes the second guide slope 524 to contact the first guide slope 523, causing the driven block 522 to drive the grooving cutter 532 to slide away from the workpiece.

[0042] Combination Figure 2 and Figure 3 Specifically, the fixing block 2 has a horizontally arranged positioning groove 63 on its periphery. The first positioning component 6 includes a positioning plate 61 and a positioning pin 62. The positioning plate 61 is fixedly connected to the fixing block 2 and is perpendicular to the axis of the housing 1. The positioning pin 62 passes through the positioning plate 61 and is fixedly connected to the positioning plate 61. The axis of the positioning pin 62 is perpendicular to the positioning plate 61. The second positioning component 7 includes a bearing 71 and a positioning block 72. The bearing 71 is sleeved on the periphery of the fixing block 2, and the inner periphery of the bearing 71 is fixedly connected to the outer periphery of the fixing block 2. The positioning block 72 is fixedly arranged on the outer periphery of the bearing 71. A gasket 9 is provided on the periphery of the fixing block 2. The gasket 9 is slidably connected to the positioning groove 63 and contacts the positioning plate 61.

[0043] In this embodiment, the positioning groove 63 is annular, and the positioning plate 61 is configured to meet the installation requirements of the positioning pin 62. The vertical cross-section of the positioning pin 62 is T-shaped, and the diameter of the positioning pin 62 is consistent with the diameter of the secondary hole. Both the bearing 71 and the positioning block 72 are annular. The radius of the inner ring of the bearing 71 is consistent with the radius of the fixing block 2, and the radius of the inner ring of the positioning block 72 is consistent with the radius of the outer ring of the bearing 71. The shim 9 is configured to meet the requirement of adjusting the gap between the grooving cutter 532 and the main hole of the workpiece; this embodiment does not impose specific limitations.

[0044] In practical use, the fixing block 2 is placed in the main hole, so that the outer periphery of the positioning block 72 contacts the inner side of the main hole. The shim 9 is placed in the gap between the positioning plate 61 and the workpiece. Then, the positioning plate 61 is pushed to insert the positioning pin 62 into the secondary hole, so that the positioning pin 62 contacts the secondary hole. The workpiece is controlled to rotate, so that the workpiece drives the positioning block 72 to rotate. Since the inner periphery of the bearing 71 is fixedly connected to the outer periphery of the fixing block 2 and the positioning block 72 is fixedly set on the outer periphery of the bearing 71, the internal hole grooving tool remains stationary.

[0045] The implementation principle of this application embodiment is as follows: The fixing block 2 is placed in the main hole, so that the outer periphery of the positioning block 72 contacts the inner side of the main hole. The gasket 9 is placed in the gap between the positioning plate 61 and the workpiece. Then, the positioning plate 61 is pushed, and the positioning pin 62 is inserted into the secondary hole, so that the positioning pin 62 contacts the secondary hole. Then, the drilling machine and the drill shank 4 are connected through the mounting hole 41. The drilling machine is started, so that the drill shank 4 pushes the drive rod 3 to slide closer to the workpiece in the mounting cavity 11. This causes the drive rod 3 to push the moving plate 511 to slide closer to the workpiece in the driving cavity 54. The moving plate 511 then pushes the drive block 512 to slide closer to the workpiece in the driving cavity 54. This causes the bottom end of the moving plate 511 to push the first spring 513 to contract in the driving cavity 54. Since the top end of the driven column 521 is fixedly connected to the bottom end of the drive block 512, the drive block 512 pushes the driven column 521 to slide closer to the workpiece in the driven cavity 55. Due to the first guide slope... The arrangement of surface 523 and the second guide slope 524 allows the driven column 521 to push the driven block 522 to slide closer to the workpiece in the driven cavity 55. At this time, the driven block 522 pushes the second spring 531 to contract in the movable groove, causing the driven block 522 to push the grooving cutter 532 to slide closer to the workpiece, thereby causing the grooving cutter 532 to contact the inner wall of the workpiece, controlling the rotation of the workpiece, and causing the workpiece to drive the positioning block 72 to rotate. Since the inner circumference of the bearing 71 is fixedly connected to the outer circumference of the fixed block 2 and the positioning block 72 is fixedly set on the outer circumference of the bearing 71, the inner hole grooving tool remains stationary, thereby realizing the grooving of the inner hole.

[0046] After the internal grooving is completed, the control drill shank 4 pulls the drive rod 3 to slide away from the workpiece in the mounting cavity 11, causing the drive rod 3 to move away from the moving plate 511. Due to the elastic recovery of the first spring 513, the first spring 513 pushes the moving plate 511 to slide away from the workpiece in the drive cavity 54. As a result, the moving plate 511 drives the drive block 512 to slide away from the workpiece in the drive cavity 54. Since the top end of the driven column 521 is fixedly connected to the bottom end of the drive block 512, the drive block 512 pulls the driven column 521 to slide away from the workpiece in the driven cavity 55, causing the driven column 521 to move away from the driven block 522. Due to the elastic recovery of the second spring 531, the second spring 531 pushes the driven block 522 to slide closer to the driven column 521 in the driven cavity 55. This causes the second guide slope 524 to contact the first guide slope 523, causing the driven block 522 to drive the grooving cutter 532 to slide away from the workpiece.

[0047] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A grooving tool for a drilling machine, characterized in that, include: Box (1), wherein a mounting cavity (11) is vertically provided inside the box (1); Fixing block (2), which is fixedly disposed in the mounting cavity (11); Drive rod (3), which is slidably disposed in the mounting cavity (11); Drill shank (4), the drill shank (4) is located at the upper end of the housing (1), the lower end of the drill shank (4) is fixedly connected to the upper end of the drive rod (3), the drill shank (4) drives the drive rod (3) to slide in the mounting cavity (11), and a mounting hole (41) is horizontally provided on the drill shank (4). Grooving assembly (5), which is disposed in the fixing block (2) and is used to drill holes in the workpiece; The first positioning element (6) is fixedly connected to the fixed block (2) to achieve the initial positioning of the fixed block (2); The second positioning element (7) is fixedly connected to the periphery of the fixed block (2) to achieve further positioning of the fixed block (2).

2. The drilling tool for internal grooving according to claim 1, characterized in that, The fixing block (2) has a horizontally arranged positioning groove (63) on its periphery, and the first positioning element (6) includes: Positioning plate (61), the positioning plate (61) is fixedly connected to the fixing block (2), and the positioning plate (61) is perpendicular to the axis of the box body (1); Positioning pin (62) is inserted into the positioning plate (61) and fixedly connected to the positioning plate (61). The axis of the positioning pin (62) is perpendicular to the positioning plate (61).

3. The drilling tool for internal grooving according to claim 1, characterized in that, The second positioning element (7) includes: Bearing (71), the bearing (71) is sleeved on the periphery of the fixing block (2), and the inner periphery of the bearing (71) is fixedly connected to the outer periphery of the fixing block (2); Positioning block (72) is fixedly disposed on the outer periphery of the bearing (71).

4. The drilling tool for internal grooving according to claim 1, characterized in that, The fixed block (2) is vertically provided with a driving cavity (54) and a driven cavity (55). The driving cavity (54) is located above the driven cavity (55) and the driving cavity (54) communicates with the driven cavity (55). The grooving assembly (5) includes: The driving component (51) is slidably disposed in the driving cavity (54) and is used to convert the movement of the drill shank (4) into its own movement. The driven member (52) is slidably disposed in the driven cavity (55) and is fixedly connected to the driving member (51); The grooving component (53) is slidably disposed in the driven cavity (55) and fixedly connected to the driven component (52) to realize the grooving of the inner hole.

5. The drilling tool for internal grooving according to claim 4, characterized in that, The drive unit (51) includes: The movable plate (511) is slidably disposed in the drive cavity (54), and the top end of the movable plate (511) is in contact with the bottom end of the drive rod (3). A driving block (512) is slidably disposed in the driving cavity (54) and fixedly disposed at the bottom end of the moving plate (511); The first spring (513) is sleeved on the periphery of the driving block (512). One end of the first spring (513) is fixedly connected to the bottom end of the moving plate (511), and the other end of the first spring (513) is fixedly connected to the fixed block (2).

6. The drilling tool for internal grooving according to claim 5, characterized in that, The follower (52) includes: Driven column (521), the driven column (521) is slidably disposed in the driven cavity (55), the top end of the driven column (521) is fixedly connected to the bottom end of the driving block (512), and the axis of the driven column (521) is consistent with the axis of the moving plate (511); The driven block (522) is slidably disposed in the driven cavity (55), and the axis of the driven block (522) is perpendicular to the axis of the driven column (521).

7. A drilling machine internal grooving tool according to claim 6, characterized in that, The driven column (521) has a first guide slope (523) at its bottom end, and the driven block (522) has a second guide slope (524) at one end near the first guide slope (523), and the second guide slope (524) is in contact with the first guide slope (523).

8. A drilling machine internal grooving tool according to claim 6, characterized in that, The fixed block (2) has a horizontal sliding groove (533) on the side near the driven block (522), and the grooved member (53) includes: The second spring (531) is disposed in the sliding groove (533). One end of the second spring (531) is fixedly connected to the fixed block (2), and the other end of the second spring (531) is fixedly connected to the driven block (522). The axis of the second spring (531) is horizontal to the axis of the driven block (522). The grooving cutter (532) is inserted into the fixed block (2), the grooving cutter (532) is slidably connected to the fixed block (2), the grooving cutter (532) is fixedly connected to the driven block (522), and the grooving cutter (532) is perpendicular to the axis of the driven column (521).

9. A drilling machine internal grooving tool according to claim 1, characterized in that, A self-lubricating sleeve (8) is fixedly installed inside the fixing block (2).

10. A drilling machine internal grooving tool according to claim 2, characterized in that, A gasket (9) is provided around the fixed block (2). The gasket (9) is slidably connected to the positioning groove (63) and the gasket (9) is in contact with the positioning plate (61).

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