Cylinder machining tool

Abstract

The invention discloses a cylinder machining tool which comprises a cylindrical mounting part, a movable roller rotationally connected with the cylindrical mounting part, a rotating shaft, a machining scraper and a push broach mechanism arranged in a roller mounting cavity. The limiting piece is overturned up and down to be clamped in the mounting notch and the limiting notch so as to limit the cylindrical mounting piece to rotate relative to the to-be-machined cylinder, and one end of the machining scraper is pushed out of the cutter groove in the radial direction through the cutter pushing mechanism to abut against the inner wall of the to-be-machined cylinder; and then the rotating shaft drives the movable roller and the machining scrapers extending out of the cutter grooves on the movable roller to rotate, so that the inner wall of the cylinder is subjected to rounding machining, machining is stable, the situation that a conventional turning tool jumps in the radial direction during rotation is avoided, the rounding machining error of the inner wall of the cylinder is reduced, and the tolerance requirement is met.

Description

Technical Field

[0001] This application relates to the field of cylindrical machining equipment technology, and in particular to a cylindrical machining tooling. Background Technology

[0002] The rise of large-scale industrial production necessitates the rapid roughing of the inner wall of cylinders to reduce wall thickness and meet basic dimensional requirements, thus giving rise to the first generation of mechanized machining technology.

[0003] Existing cylindrical machining equipment generally uses a lathe to drive a cutting tool into the cylinder, and the lathe spindle drives the cutting tool to rotate in order to achieve rounding of the inner wall of the cylinder. However, when the spindle of an existing ordinary lathe drives the cutting tool to rotate, radial runout will occur, resulting in large machining errors and making it difficult to meet tolerance requirements. Summary of the Invention

[0004] In order to improve the shortcomings of existing lathe tools, such as large machining errors and difficulty in meeting tolerance requirements, this application provides a cylindrical machining fixture.

[0005] The cylindrical machining fixture provided in this application adopts the following technical solution: A cylindrical machining fixture includes: a cylindrical mounting component with a mounting notch, on which a limiting component is hinged; a movable roller rotatably connected to the cylindrical mounting component, the movable roller having an axially arranged roller mounting cavity and a radially penetrating groove communicating with the roller mounting cavity; a rotating shaft, one end of which is connected to the movable roller and the other end of which extends out of the cylindrical mounting component; a machining scraper, one end of which is radially movably disposed in the groove and the other end of which extends into the roller mounting cavity; and a pusher mechanism disposed in the roller mounting cavity for radially pushing one end of the machining scraper out of the groove.

[0006] By adopting the above technical solution, when in use, the cylindrical machining fixture of this application extends into the cylindrical cavity to be machined. A limiting notch is provided at the edge of the opening on the cylindrical cavity to be machined. At this time, the mounting notch on the cylindrical mounting part corresponds to the limiting notch. The limiting part is flipped up and down and locked in the mounting notch and the limiting notch to restrict the rotation of the cylindrical mounting part relative to the cylindrical cavity to be machined. The pushing mechanism pushes one end of the machining scraper radially out of the cutting groove and abuts against the inner wall of the cylindrical cavity to be machined. Then, the rotating shaft drives the movable roller and each machining scraper extending out of the cutting groove on the movable roller to rotate, so as to realize the rounding machining of the inner wall of the cylinder. The machining is stable and avoids the radial runout that occurs when the conventional turning tool rotates, reducing the rounding machining error of the inner wall of the cylinder to meet the tolerance requirements.

[0007] Preferably, the pusher mechanism includes: a pusher drive shaft, which is axially movably disposed within the drum mounting cavity; a pusher connecting part, which is circumferentially arranged on the outer wall of the pusher drive shaft and corresponds to the exit groove, the pusher connecting part being provided with a waist-shaped groove, the upper end of the waist-shaped groove being inclined towards the pusher drive shaft; a rolling connecting shaft, one end of which is rotatably connected to the end of the processing scraper away from the exit groove, and the other end being rotatably disposed in the waist-shaped groove; and a pusher base, one end of which is rotatably connected to the pusher drive shaft, and the other end extending movably out of the movable drum. When the pusher base is pushed into the drum mounting cavity, it pushes the pusher drive shaft to move axially upward, pushing the processing scraper out of the exit groove through the wall of the waist-shaped groove.

[0008] By adopting the above technical solution, when the inner wall of the cylinder needs to be processed, the push base is pushed into the roller mounting cavity, and the push base pushes the pusher drive shaft to move upward along the axis. The processing scraper is pushed out of the corresponding exit groove through the waist-shaped groove wall. After the processing is completed, the push base drives the pusher drive shaft to move downward along the axis, and the processing scraper is pushed into the corresponding exit groove through the waist-shaped groove wall. This makes it easy for the present application to remove the cylindrical product, and also makes it easy for the present application to be packaged, placed and stored.

[0009] Preferably, the inner wall of the roller mounting cavity is provided with an annular mounting protrusion, and the push base includes: an upper mounting part, which is rotatably connected to the annular mounting protrusion, and a first bearing is provided between the upper mounting part and the annular mounting protrusion; a lower pushing part, which is axially movably disposed on the movable roller, and the lower pushing part is rotatably connected to the pusher drive shaft, and a second bearing is provided between the lower pushing part and the pusher drive shaft; and a reset elastic element, which is disposed between the upper mounting part and the lower pushing part, for pushing the lower pushing part axially downward out of the movable roller.

[0010] By adopting the above technical solution, a first bearing is provided between the upper mounting part and the annular mounting protrusion, and a second bearing is provided between the lower pushing part and the pusher drive shaft, so that the rotation of the movable roller and the pusher drive shaft is more stable. At the same time, a reset elastic element is provided between the upper mounting part and the lower pushing part. After processing is completed, the lower pushing part is automatically pushed out of the movable roller axially downward by the reset elastic element, so that each processing scraper is put into the corresponding blade slot, which is convenient to use.

[0011] Preferably, the bottom of the movable roller is provided with a drive shaft limiting mechanism. When the lower pushing part extends upward along the axial direction into the roller mounting cavity, the drive shaft limiting mechanism is used to restrict the lower pushing part from extending downward along the axial direction outside the movable roller.

[0012] By adopting the above technical solution, when it is necessary to process the inner wall of the cylinder, the push base is pushed into the roller mounting cavity, and the drive shaft limiting mechanism restricts the lower push part from extending axially downward outside the movable roller. This ensures that during processing, each processing scraper extends out of the cutting groove to process the inner wall of the cylinder. After processing is completed, the restriction of the drive shaft limiting mechanism is released, and the reset elastic element automatically pushes the lower push part axially downward outside the movable roller, which is convenient to use.

[0013] Preferably, the bottom of the movable roller is provided with a clearance hole for the lower pushing part to extend out. The drive shaft limiting mechanism includes a baffle mounting groove provided at the bottom of the movable roller and communicating with the clearance hole, and a limiting baffle rotatably provided in the baffle mounting groove. The limiting baffle is provided with a clearance arc groove with the same curvature as the clearance hole. When the limiting baffle rotates to the point where the clearance arc groove corresponds to the clearance hole, the reset elastic member pushes the lower pushing part out of the movable roller along the clearance hole.

[0014] By adopting the above technical solution, when the inner wall of the cylinder needs to be processed, the lower pushing part is pushed into the relief hole. At this time, the relief arc groove corresponds to the relief hole. Then, the limiting baffle is rotated so that the limiting baffle is aligned with the relief hole, thereby restricting the lower pushing part from extending downward along the axial direction outside the movable roller. When the processing is completed and the tool needs to be retracted, the limiting baffle is rotated until the relief arc groove corresponds to the relief hole. Then, the lower pushing part can be pushed out of the movable roller along the relief hole and relief arc groove by the reset elastic element. It is very convenient to use.

[0015] Preferably, the limiting baffle has a toggle protrusion on the side away from the movable roller.

[0016] By adopting the above technical solution, the operation is more convenient when using the device, as the limit baffle is rotated by moving the protrusion.

[0017] Preferably, the bottom of the movable roller is provided with a limiting protrusion. When the actuating protrusion drives the limiting baffle to rotate until the actuating protrusion abuts against the limiting protrusion, the clearance arc groove corresponds to the clearance hole.

[0018] By adopting the above technical solution, when the actuating protrusion is moved to drive the limiting baffle to rotate until the actuating protrusion abuts against the limiting protrusion, the relief groove corresponds to the relief hole, so that the lower pushing part is pushed out of the movable roller along the relief hole and the relief groove, which is convenient to operate.

[0019] Preferably, there are multiple cutter grooves, which are arranged circumferentially on the movable roller.

[0020] By adopting the above technical solution, when the pusher drive shaft moves along the axial direction, it can simultaneously drive the machining scrapers on each tool slot to extend or retract synchronously from the tool slot, ensuring that the distance of each machining scraper extending or retracting from the tool slot is the same, thus ensuring machining accuracy.

[0021] Preferably, the plurality of the blade grooves are arranged axially on the movable roller.

[0022] By adopting the above technical solution, and by setting multiple blade grooves arranged axially on the movable drum, multiple processing scrapers can be arranged to extend out of the outer wall of the movable drum at the same time, making the processing of the inner wall of the cylinder more comprehensive and the processing area larger.

[0023] Preferably, the inner wall of the cylindrical mounting component is provided with a rotating mounting ring protrusion, and the outer wall of the movable roller is provided with a rotating mounting ring groove corresponding to and matching the rotating mounting ring protrusion. One end of the movable roller is rotatably disposed inside the cylindrical mounting component, and the rotating mounting ring protrusion is disposed in the rotating mounting ring groove, so as to restrict the movable roller from detaching from the cylindrical mounting component axially.

[0024] By adopting the above technical solution, the rotation of the movable roller relative to the cylindrical mounting part is more stable, and the movable roller is prevented from detaching from the cylindrical mounting part, thereby improving the machining accuracy of the inner wall of the cylinder.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. When performing rounding machining on the inner wall of a cylinder, the cylinder machining fixture of this application is inserted into the cylinder to be machined. The limiting part is flipped up and down and locked in the installation notch and the limiting notch to restrict the rotation of the cylindrical mounting part relative to the cylinder to be machined. The cutting tool mechanism pushes one end of the machining scraper radially out of the cutting groove and abuts against the inner wall of the cylinder to be machined. Then, the rotating shaft drives the movable roller and each machining scraper extending out of the cutting groove on the movable roller to rotate, so as to achieve rounding machining on the inner wall of the cylinder. The machining is stable and avoids the radial runout that occurs when the conventional turning tool rotates. It reduces the rounding machining error of the inner wall of the cylinder to meet the tolerance requirements, and the equipment cost is low. 2. The pusher mechanism of this application includes a pusher drive shaft axially movable within the drum mounting cavity, a pusher connecting part circumferentially arranged on the outer wall of the pusher drive shaft, a rolling connecting shaft, and a pusher base. The pusher connecting part corresponds to the discharge slot, and the pusher connecting part is provided with a waist-shaped groove. The upper end of the waist-shaped groove is inclined towards the pusher drive shaft. One end of the rolling connecting shaft is rotatably connected to the end of the processing scraper away from the discharge slot, and the other end is rotatably disposed in the waist-shaped groove. One end of the pusher base is rotatably connected to the pusher drive shaft, and the other end extends movably out of the movable drum. When the inner wall of the cylinder needs to be processed, the pusher base is pushed into the drum mounting cavity, and the pusher base pushes the pusher drive shaft to move upward axially. The processing scraper is pushed out of the corresponding discharge slot through the wall of the waist-shaped groove. After processing is completed, the pusher base drives the pusher drive shaft to move downward axially, and the processing scraper is pushed into the corresponding discharge slot through the wall of the waist-shaped groove. This facilitates the removal of the cylindrical product and the packaging and storage of this application. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of the cylindrical machining fixture in the embodiments of this application. Figure 1 .

[0027] Figure 2 This is a schematic diagram of the cylindrical machining fixture and the cylindrical cylinder to be processed in the embodiments of this application.

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the cylindrical machining fixture in the embodiments of this application. Figure 2 .

[0029] Figure 4 This is an exploded structural diagram of the cylindrical machining fixture and the cylindrical cylinder to be processed in the embodiments of this application.

[0030] Figure 5 This is a cross-sectional view of the cylindrical machining tooling in this embodiment of the application, showing the scraper extending out of the tool groove.

[0031] Figure 6 This is a cross-sectional view of the cylindrical machining tooling in the tool slot of this application.

[0032] Explanation of reference numerals in the attached figures: 1. Cylindrical mounting component; 2. Mounting notch; 3. Limiting component; 4. Movable roller; 41. Roller mounting cavity; 42. Tool groove; 5. Rotating shaft; 6. Machining scraper; 7. Pushing mechanism; 71. Pushing drive shaft; 72. Pushing connection part; 73. Waist-shaped groove; 74. Rolling connecting shaft; 75. Pushing base; 751. Upper mounting part; 752. Lower pushing part; 753. Reset elastic component; 8. Drive shaft limiting mechanism; 81. Baffle mounting groove; 82. Limiting baffle; 83. Clearance arc groove; 91. First bearing; 92. Second bearing; 10. Annular mounting protrusion; 11. Clearance hole; 12. Actuating protrusion; 13. Limiting protrusion; 14. Rotating mounting ring protrusion; 15. Rotating mounting ring groove; 20. Cylinder to be processed; 21. Limiting notch. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1 to 6 This application will be described in further detail.

[0034] This application discloses a cylindrical machining fixture, including a cylindrical mounting component 1, a movable roller 4 rotatably connected to the cylindrical mounting component 1, a rotating shaft 5 with one end connected to the movable roller 4 and the other end extending out of the cylindrical mounting component 1, a machining scraper 6 with one end radially movable in a tool groove 42 and the other end extending into a roller mounting cavity 41, and a pusher mechanism 7 disposed in the roller mounting cavity 41. An mounting notch 2 is provided on the cylindrical mounting component 1, and a limiting notch 21 is provided at the opening edge of the cylindrical component 20 to be machined. When the cylindrical machining fixture of this application extends into the cylindrical component 20 to be machined, the mounting notch 2 on the cylindrical mounting component 1 and the limiting notch 21 are aligned. Correspondingly, a pin is inserted into the mounting notch 2 and the limiting notch 21 to restrict the rotation of the cylindrical mounting part 1 relative to the cylinder 20 to be machined; preferably, the mounting notch 2 of this application is hinged with a limiting member 3. When in use, after the mounting notch 2 on the cylindrical mounting part 1 corresponds to the limiting notch 21, the limiting member 3 can be directly flipped up and down and locked in the mounting notch 2 and the limiting notch 21 to restrict the rotation of the cylindrical mounting part 1 relative to the cylinder 20 to be machined, which is more convenient to use; the movable roller 4 is provided with a roller mounting cavity 41 arranged along the axial direction and a tool groove 42 that penetrates the movable roller 4 radially and communicates with the roller mounting cavity 41.

[0035] In use, the cylindrical machining fixture of this application extends into the cylindrical cylinder 20 to be processed. After the cylindrical mounting part 1 is restricted to rotate relative to the cylindrical cylinder 20 by means of a pin or limiting part 3, one end of the machining scraper 6 is pushed radially out of the cutting groove 42 by the pusher mechanism 7 and abuts against the inner wall of the cylindrical cylinder 20. The rotating shaft 5 is connected to the output end of the motor, and then the rotating shaft 5 drives the movable roller 4 and each machining scraper 6 extending out of the cutting groove 42 on the movable roller 4 to rotate, so as to realize the rounding machining of the inner wall of the cylinder. The machining is stable and avoids the radial runout that occurs when the conventional lathe tool rotates, reduces the rounding machining error of the inner wall of the cylinder to meet the tolerance requirements, and the equipment cost is low.

[0036] Furthermore, such as Figure 5 , Figure 6As shown, the pusher mechanism 7 includes a pusher drive shaft 71 axially movable within the drum mounting cavity 41, a pusher connecting part 72 circumferentially arranged on the outer wall of the pusher drive shaft 71, a rolling connecting shaft 74, and a pusher base 75. The pusher connecting part 72 corresponds to the exit groove 42. The pusher connecting part 72 is provided with a waist-shaped groove 73. The upper end of the waist-shaped groove 73 is inclined towards the pusher drive shaft 71. One end of the rolling connecting shaft 74 is rotatably connected to the end of the processing scraper 6 away from the exit groove 42, and the other end is rotatably disposed in the waist-shaped groove 73. One end of the pusher base 75 is rotatably connected to the pusher drive shaft 71, and the other end extends movably out of the movable drum 4. When the pusher base 75 is pushed into the drum mounting cavity 41, it pushes the pusher drive shaft 71 to move upward axially, pushing the processing scraper 6 out of the exit groove 42 through the groove wall of the waist-shaped groove 73. When the inner wall of the cylinder needs to be processed, the push base 75 is pushed into the roller mounting cavity 41. The push base 75 pushes the pusher drive shaft 71 to move upward along the axis. The processing scraper 6 is pushed out of the corresponding exit groove 42 through the groove wall of the waist-shaped groove 73. After the processing is completed, the push base 75 drives the pusher drive shaft 71 to move downward along the axis. The processing scraper 6 is pushed into the corresponding exit groove 42 through the groove wall of the waist-shaped groove 73. This makes it easy for the cylindrical product to be removed and for the product to be packaged and stored.

[0037] Furthermore, the inner wall of the roller mounting cavity 41 is provided with an annular mounting protrusion 10, and the push base 75 includes an upper mounting part 751 rotatably connected to the annular mounting protrusion 10, a lower pushing part 752 axially movably disposed on the movable roller 4, and a reset elastic element 753 disposed between the upper mounting part 751 and the lower pushing part 752. A first bearing 91 is provided between the upper mounting part 751 and the annular mounting protrusion 10, the lower pushing part 752 is rotatably connected to the pusher drive shaft 71, and a second bearing 92 is provided between the lower pushing part 752 and the pusher drive shaft 71.

[0038] A first bearing 91 is provided between the upper mounting part 751 and the annular mounting protrusion 10, and a second bearing 92 is provided between the lower pushing part 752 and the pusher drive shaft 71, making the rotation of the movable roller 4 and the pusher drive shaft 71 more stable. At the same time, a reset elastic element 753 is provided between the upper mounting part 751 and the lower pushing part 752. After processing is completed, the lower pushing part 752 is automatically pushed out of the movable roller 4 axially downward by the reset elastic element 753, so that each processing scraper 6 can be put into the corresponding blade groove 42, which is convenient to use.

[0039] Furthermore, such as Figure 3As shown, the bottom of the movable roller 4 is provided with a drive shaft limiting mechanism 8. When the lower pushing part 752 extends axially upward into the roller mounting cavity 41, the drive shaft limiting mechanism 8 is used to restrict the lower pushing part 752 from extending axially downward out of the movable roller 4. When it is necessary to process the inner wall of the cylinder, the push base 75 is pushed into the roller mounting cavity 41, and the drive shaft limiting mechanism 8 restricts the lower pushing part 752 from extending axially downward out of the movable roller 4. This ensures that during processing, each processing scraper 6 extends out of the cutting groove 42 to process the inner wall of the cylinder. After processing is completed, the restriction of the drive shaft limiting mechanism 8 is released, and the reset elastic element automatically pushes the lower pushing part axially downward out of the movable roller, which is convenient to use.

[0040] Furthermore, the bottom of the movable roller 4 is provided with a clearance hole 11 for the lower pushing part 752 to extend out. The drive shaft limiting mechanism 8 includes a baffle mounting groove 81 located at the bottom of the movable roller 4 and communicating with the clearance hole 11, and a limiting baffle 82 rotatably located in the baffle mounting groove 81. The limiting baffle 82 is provided with a clearance arc groove 83 with the same curvature as the clearance hole 11. When the limiting baffle 82 rotates to the point where the clearance arc groove 83 corresponds to the clearance hole 11, the reset elastic member 753 pushes the lower pushing part 752 out of the movable roller 4 along the clearance hole 11. When machining the inner wall of the cylinder is required, the lower pushing part 752 is pushed into the relief hole 11. At this time, the relief arc groove 83 corresponds to the relief hole 11. Then, the limiting baffle 82 is rotated so that the limiting baffle 82 is aligned with the relief hole 11, thereby restricting the lower pushing part 752 from extending axially downward outside the movable roller 4. When machining is completed and the tool needs to be retracted, the limiting baffle 82 is rotated until the relief arc groove 83 corresponds to the relief hole 11. The lower pushing part can then be pushed out of the movable roller along the relief hole and relief arc groove by the reset elastic element 753. It is very convenient to use.

[0041] To make operation more convenient, the limiting baffle 82 is provided with a toggle protrusion 12 on the side away from the movable roller 4. During use, the limiting baffle 82 can be rotated by toggle the protrusion 12.

[0042] In addition, the bottom of the movable roller 4 is provided with a limiting protrusion 13. When the actuating protrusion 12 drives the limiting baffle 82 to rotate until the actuating protrusion 12 abuts against the limiting protrusion 13, the clearance arc groove 83 corresponds to the clearance hole 11. When the actuating protrusion 12 drives the limiting baffle 82 to rotate until the actuating protrusion 12 abuts against the limiting protrusion 13, the clearance arc groove 83 corresponds to the clearance hole 11, so that the lower pushing part 752 is pushed out of the movable roller 4 along the clearance hole 11 and the clearance arc groove 83, making the operation more convenient.

[0043] Specifically, there are multiple exit grooves 42, which are arranged circumferentially on the movable roller 4. When the pusher drive shaft 71 moves axially, it can simultaneously drive the processing scrapers 6 on each exit groove 42 to extend or retract synchronously, ensuring that the distance of each processing scraper 6 extending or retracting from the exit groove 42 is the same, thus ensuring processing accuracy.

[0044] More specifically, multiple blade grooves 42 are arranged axially on the movable roller 4. By providing multiple blade grooves 42 axially on the movable roller, multiple processing scrapers can be simultaneously arranged to extend out of the outer wall of the movable roller, making the processing of the inner wall of the cylinder more comprehensive and the processing area larger.

[0045] In addition, such as Figure 5 , Figure 6 As shown, the inner wall of the cylindrical mounting component 1 is provided with a rotating mounting annular protrusion 14, and the outer wall of the movable roller 4 is provided with a rotating mounting annular groove 15 corresponding to and matching the rotating mounting annular protrusion 14. One end of the movable roller 4 is rotatably disposed inside the cylindrical mounting component 1, and the rotating mounting annular protrusion 14 is disposed in the rotating mounting annular groove 15 to restrict the movable roller 4 from detaching from the cylindrical mounting component 1 axially. This makes the rotation of the movable roller 4 relative to the cylindrical mounting component 1 more stable and prevents the movable roller 4 from detaching from the cylindrical mounting component 1, thereby improving the machining accuracy of the inner wall of the cylinder.

[0046] The implementation principle of a cylindrical machining fixture in this application embodiment is as follows: In use, the cylindrical machining fixture of this application extends into the cylindrical cylinder 20 to be processed. After the mounting notch 2 on the cylindrical mounting part 1 corresponds to the limiting notch 21, a pin is inserted into the mounting notch 2 and the limiting notch 21, or the limiting part 3 is directly flipped up and down and locked into the mounting notch 2 and the limiting notch 21, which can restrict the rotation of the cylindrical mounting part 1 relative to the cylindrical cylinder 20 to be processed, making it more convenient to use. Then, the pushing mechanism 7 pushes one end of the processing scraper 6 radially out of the cutting groove 42 to abut against the inner wall of the cylindrical cylinder 20 to be processed. The rotating shaft 5 is connected to the output end of the motor, and the rotating shaft 5 drives the movable roller 4 and each processing scraper 6 extending out of the cutting groove 42 on the movable roller to rotate, so as to realize the rounding processing of the inner wall of the cylinder, and the processing is stable, avoiding the radial runout that occurs when the conventional turning tool rotates, reducing the rounding processing error of the inner wall of the cylinder to meet the tolerance requirements, and the equipment cost is low. In addition, when processing the inner wall of the cylinder, this application pushes the push base 75 to extend into the roller. The mounting cavity 41 and the push base 75 push the pusher drive shaft 71 to move upward along the axial direction. The processing scraper 6 is pushed out of the corresponding exit groove 42 through the groove wall of the waist-shaped groove 73. After processing, the push base 75 drives the pusher drive shaft 71 to move downward along the axial direction. The processing scraper 6 is pushed into the corresponding exit groove 42 through the groove wall of the waist-shaped groove 73. This facilitates the removal of the cylindrical product and makes it easier to package and store the product. At the same time, a first bearing 91 is provided between the upper mounting part 751 and the annular mounting protrusion 10, and a second bearing 92 is provided between the lower pushing part 752 and the pusher drive shaft 71. This makes the rotation of the movable roller 4 and the pusher drive shaft 71 more stable. In addition, a reset elastic element 753 is provided between the upper mounting part 751 and the lower pushing part 752. After processing, the reset elastic element 753 automatically pushes the lower pushing part 752 downward along the axial direction out of the movable roller 4, so that each processing scraper 6 is put into the corresponding exit groove 42. This makes it convenient to use.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cylindrical workpiece processing tool, characterized by, The utility model relates to a kind of processing device, including: Cylindrical mounting (1), which is provided with installation gap (2) on it, the limit piece (3) is hinged on the installation gap (2); Movable roller (4), which is rotatably connected with the cylindrical mounting (1), the movable roller (4) is provided with roller installation cavity (41) arranged in axial direction and knife slot (42) penetrating through movable roller (4) and communicating with roller installation cavity (41) in radial direction; Rotating shaft (5), which is connected with movable roller (4) at one end and extends out of the cylindrical mounting (1) at the other end; Processing doctor blade (6), which is movably arranged in radial direction in knife slot (42) at one end and extends into roller installation cavity (41) at the other end; Push-knife mechanism (7), which is arranged in roller installation cavity (41) and used for pushing the one end of processing doctor blade (6) out of knife slot (42) in radial direction.

2. The cylindrical workpiece processing tool of claim 1, wherein The push-knife mechanism (7) includes: Push-knife driving shaft (71), which is movably arranged in axial direction in roller installation cavity (41); Push-knife connecting part (72), which is arranged on the outer wall of push-knife driving shaft (71) in circumferential direction and corresponds to knife slot (42), the push-knife connecting part (72) is provided with waist-shaped groove (73), and the upper end of waist-shaped groove (73) is arranged in an inclined manner towards the direction close to push-knife driving shaft (71); Rolling connecting shaft (74), which is rotatably connected with the one end of processing doctor blade (6) away from knife slot (42) and rotatably arranged in waist-shaped groove (73) at the other end; Pushing base (75), which is rotatably connected with push-knife driving shaft (71) at one end and movably extends out of movable roller (4) at the other end, when the pushing base (75) is pushed into roller installation cavity (41), the push-knife driving shaft (71) is pushed to move upwards in axial direction, and the processing doctor blade (6) is pushed to extend out of knife slot (42) through the groove wall of waist-shaped groove (73).

3. The cylindrical workpiece processing tool of claim 2, wherein The inner wall of roller installation cavity (41) is provided with annular mounting protrusion (10), and the pushing base (75) includes: Upper mounting part (751), which is rotatably connected with annular mounting protrusion (10), and a first bearing (91) is arranged between the upper mounting part (751) and annular mounting protrusion (10); Lower pushing part (752), which is movably arranged in axial direction on movable roller (4) and rotatably connected with push-knife driving shaft (71), and a second bearing (92) is arranged between the lower pushing part (752) and push-knife driving shaft (71); Reset elastic member (753), which is arranged between the upper mounting part (751) and lower pushing part (752) and used for pushing the lower pushing part (752) to move downwards in axial direction out of movable roller (4).

4. The cylindrical workpiece processing tool of claim 3, wherein The bottom of movable roller (4) is provided with driving shaft limiting mechanism (8), when the lower pushing part (752) moves upwards in axial direction into roller installation cavity (41), the driving shaft limiting mechanism (8) is used for limiting the lower pushing part (752) to move downwards in axial direction out of movable roller (4).

5. A cylindrical workpiece processing tool according to claim 4, wherein The movable roller (4) is provided with a clearance hole (11) at the bottom for the lower push part (752) to extend out, the drive shaft limiting mechanism (8) comprises a baffle mounting groove (81) provided at the bottom of the movable roller (4) and communicated with the clearance hole (11), and a limiting baffle (82) rotatably provided in the baffle mounting groove (81), the limiting baffle (82) is provided with a clearance arc groove (83) with the same arc as the clearance hole (11), when the limiting baffle (82) is rotated to correspond the clearance arc groove (83) with the clearance hole (11), the reset elastic member (753) pushes the lower push part (752) out of the movable roller (4) along the clearance hole (11).

6. A cylindrical workpiece processing tool according to claim 5, wherein The limiting baffle (82) is provided with a pushing protrusion (12) away from the movable roller (4).

7. A cylindrical workpiece machining tool according to claim 6, wherein The bottom of the movable roller (4) is provided with a limiting protrusion (13), when the pushing protrusion (12) drives the limiting baffle (82) to rotate to correspond the pushing protrusion (12) with the limiting protrusion (13), the clearance arc groove (83) corresponds with the clearance hole (11).

8. The cylindrical workpiece processing tool of claim 1, wherein The cutting-out groove (42) is a plurality of, and the plurality of cutting-out grooves (42) are circumferentially arranged on the movable roller (4).

9. A cylindrical workpiece machining tool according to claim 8, wherein The plurality of cutting-out grooves (42) are axially arranged on the movable roller (4).

10. The cylindrical workpiece processing tool of claim 1, wherein The inner wall of the cylindrical mounting member (1) is provided with a rotating mounting ring protrusion (14), the outer wall of the movable roller (4) is provided with a rotating mounting ring groove (15) corresponding and matching with the rotating mounting ring protrusion (14), one end of the movable roller (4) is rotatably provided in the cylindrical mounting member (1), and the rotating mounting ring protrusion (14) is provided in the rotating mounting ring groove (15) to limit the movable roller (4) from axially separating from the cylindrical mounting member (1).

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