CN113199041A - Precision rotary turning tool rest - Google Patents
Precision rotary turning tool rest Download PDFInfo
- Publication number
- CN113199041A CN113199041A CN202110485351.6A CN202110485351A CN113199041A CN 113199041 A CN113199041 A CN 113199041A CN 202110485351 A CN202110485351 A CN 202110485351A CN 113199041 A CN113199041 A CN 113199041A
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- CN
- China
- Prior art keywords
- thread
- clamp
- lead screw
- turning tool
- fixedly connected
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a precision rotary turning tool rest which comprises a fixed clamp, a lead screw and a guide rail, wherein the guide rail and the lead screw are arranged between two moving coils in parallel, the end part of the lead screw penetrating through the moving coils is connected with a motor, the fixed clamp is a U-shaped clamp, the end parts of two arms of the fixed clamp are fixedly connected with guide rail pressing plates, the guide rail is arranged at the inner side of the fixed clamp by the guide rail pressing plates from two ends, the middle part of the fixed clamp is fixedly connected with a nut, the nut is matched with the lead screw, and the outer side of the middle part of the fixed clamp is fixedly connected with a tool rest assembly. According to the special tool, the radial position of the turning tool can be finely adjusted by rotating the hand wheel, precise radial feeding precision is provided, and the journal processing of different diameters is adapted by changing the radial relative positions of the slide way and the connecting plate which are connected by the bolt.
Description
Technical Field
The invention belongs to the technical field of on-site journal machining, and relates to a precision rotary turning tool rest.
Background
Disclosure of Invention
The invention aims to provide a precision rotary turning tool rest which has the characteristics that the feed precision is higher than that of a tool rest structure used in a common lathe, and the machining requirements of shaft necks with different diameters are met.
The invention adopts the technical scheme that the precision rotary turning tool rest comprises a fixing clamp, a lead screw and a guide rail, wherein the guide rail and the lead screw are arranged between two moving coils in parallel, the end part of the lead screw penetrating through the moving coils is connected with a motor, the fixing clamp is a U-shaped clamp, the end parts of two arms of the fixing clamp are fixedly connected with guide rail pressing plates, the guide rail is arranged at the inner side of the fixing clamp from two ends by the guide rail pressing plates, the middle part of the fixing clamp is fixedly connected with a nut, the nut is matched with the lead screw, and the outer side of the middle part of the fixing clamp is fixedly connected with a tool rest assembly.
The invention is also characterized in that: knife rest subassembly is including the slide, the slide is U type rail, fixation clamp middle part outside rigid coupling slide, slide one end tip rigid coupling has the uide bushing subassembly, it has the lead screw to peg graft in the uide bushing subassembly inboard, lead screw top rigid coupling has the rotation hand wheel, first section outer wall of lead screw is provided with fine screw thread, second section is provided with coarse screw thread, fine screw thread is different with coarse screw thread soon, coarse thread pitch is greater than fine screw thread, the slide inboard is provided with the screw thread slip table, screw thread slip table bottom set up threaded hole, the lead screw inserts the screw hole, the screw hole passes through coarse screw thread and is connected with the lead screw, open flutedly on screw thread slip table upper portion, the rigid coupling has the lathe tool in the recess.
The guide sleeve assembly comprises a guide sleeve, a fixed thread support is fixedly connected to the inner side of the guide sleeve, and the fixed thread support is connected with the screw rod through fine threads. The guide sleeve is radially provided with a jackscrew screw for fixing and fixing the threaded support.
The fixation clamp inboard is provided with the panel, and the panel is located between slide rail and the fixation clamp, and the panel contacts with the slide rail.
The threaded holes are formed in the middle of the fixing clamp along the edge, threaded holes are formed in two arms of the slide rail along the radial direction, the threaded holes of the fixing clamp are consistent with the threaded holes of the slide rail in aperture size, and bolts are inserted into the fixing clamp and the slide rail to fixedly connect the fixing clamp with the slide rail. Through changing the bolted connection position, and then change the relative position of fixation clamp and slide, the radial position of adjustment lathe tool in a large scale.
The rotating hand wheel and the screw rod are radially provided with positioning grooves, hand wheel positioning pins are inserted into the positioning grooves, and the rotating hand wheel is fixedly connected with the screw rod through the hand wheel positioning pins.
An inlaid strip is arranged between one side of the threaded sliding table and the slideway, bolt holes are formed in the positions, corresponding to the inlaid strips, of the slideway, the inlaid strips are pressed tightly through bolts, and lateral gaps are eliminated.
The equal rigid coupling in two arm inboards of slide has the panel clamp plate, is provided with the panel under the panel clamp plate, and the panel clamp plate will be inlayed and press in two arm tip surfaces of slide, has the bolt on the panel clamp plate, compresses tightly the panel through the bolt, eliminates the clearance between screw thread slip table and the slide.
The invention has the beneficial effects that:
1. the invention can complete the machining process after on-site repair, avoids the factory return transportation of the motor shaft, and reduces the maintenance cost and the maintenance time of the motor shaft.
2. The invention can finely adjust the radial position of the turning tool by rotating the hand wheel, provides precise radial feeding precision, and adapts to the processing of shaft necks with different diameters by changing the radial relative position of the slide way and the connecting plate connected by the bolt.
Drawings
FIG. 1 is a schematic view of the mounting of a precision rotary turning tool holder of the present invention;
FIG. 2 is a side view of a precision rotary turning tool holder of the present invention;
FIG. 3 is a rear view of a precision rotary turning tool holder of the present invention;
FIG. 4 is a schematic view of a toolholder assembly for a precision rotary turning tool holder according to the present invention;
FIG. 5 is a cross-sectional view of a toolholder assembly of a precision rotary turning tool holder of the present invention;
FIG. 6 is a schematic view of the overall construction of a precision rotary turning tool holder of the present invention;
FIG. 7 is a schematic view of a thread sliding table structure of a precision rotary turning tool holder according to the present invention;
FIG. 8 is a top view of a thread slip table of a precision rotary turning tool holder of the present invention.
In the figure, 1, a fixed clamp, 2, a lead screw, 3, a guide rail, 4, a moving coil, 5, a tool rest assembly, 6, a guide sleeve assembly, 7, the lead screw, 1-1, a guide rail pressing plate, 1-2, a nut, 5-1, a slideway, 5-2, a thread sliding table, 5-3, an inlaid strip pressing plate, 6-1, the guide sleeve, 6-2, a fixed thread support and 7-1, a rotating hand wheel are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention discloses a precision rotary turning tool rest, which comprises a fixed clamp 1, a lead screw 2 and a guide rail 3, wherein the guide rail 3 and the lead screw 2 are arranged between two moving coils 4 in parallel, the end part of the lead screw penetrating through the moving coils 4 is connected with a motor, the fixed clamp 1 is a U-shaped clamp, the end parts of two arms of the fixed clamp 1 are fixedly connected with guide rail pressing plates 1-1, the guide rail pressing plates 1-1 fix the guide rail 2 at the inner side of the fixed clamp 1 from two ends, as shown in figure 3, the middle part of the fixed clamp 1 is fixedly connected with a nut 1-2, the nut 1-2 is matched with the lead screw, and the outer side of the middle part of the fixed clamp 1 is fixedly connected with a tool rest component 5.
As shown in FIG. 4, the tool rest assembly 5 comprises a slide way 5-1, the slide way 5-1 is a U-shaped rail, the outer side of the middle part of the fixing clamp 1 is fixedly connected with the slide way 5-1, one end part of the slide way is fixedly connected with a guide sleeve assembly 6, the inner side of the guide sleeve assembly 6 is inserted with a screw rod 7, the top end of the screw rod 7 is fixedly connected with a rotating hand wheel 7-1, the outer wall of the upper half section of the screw rod 7 is provided with a fine thread, the lower half section of the screw rod 7 is provided with a coarse thread, the rotation directions of the fine thread and the coarse thread are different, the pitch of the coarse thread is larger than that of the fine thread, the inner side of the slide way 5-1 is provided with a thread sliding table 5-2, the bottom of the thread sliding table 5-2 is provided with a threaded hole, the screw rod 7 is inserted into the threaded hole, the threaded hole is connected with the screw rod 7 through the coarse thread, the upper part of the thread sliding table 5-2 is provided with a groove, a turning tool 8 is fixedly connected with the turning tool 8, and the turning tool is fixed on the thread sliding table 5-2 through a bolt.
The motor is connected and fixed on the speed reducer through a bolt, the speed reducer is fixed on the moving coil 4, the motor drives the screw rod 2 to rotate through the speed reducer, and the screw rod 2 drives the fixing clamp 1 to move left and right through a nut fixed on the lower portion of the tool rest. The outer circle of the fixed ring is provided with a gear (shielded by a driven ring) which is meshed with an output gear of the speed reducer (inside a structure at the connecting position of the speed reducer and the moving ring), and when the motor drives the screw rod 2 through the speed reducer, the motor also drives the moving ring 4 to rotate around the fixed ring through the rotation of the output gear of the speed reducer.
The fine thread and the coarse thread have different screw directions and different screw pitches. When the hand wheel is rotated, the radial movement direction of the screw rod along the processed shaft is opposite to the movement direction of the thread sliding table.
As shown in figure 5, the guide sleeve assembly 6 comprises a guide sleeve 6-1, a fixed thread support 6-2 is fixedly connected to the inner side of the guide sleeve 6-1, and the fixed thread support 6-2 is connected with a screw rod 7 through a fine thread. The guide sleeve 6-1 is radially provided with a jackscrew fixed thread support 6-2.
The inboard gib that is provided with of fixation clamp 1, the gib is located between slide rail 3 and fixation clamp 1, and the gib contacts with slide rail 3.
The middle edge of the fixing clamp 1 is provided with a threaded hole, two arms of the slideway 5-1 are provided with threaded holes along the radial direction, the diameter of the threaded hole of the fixing clamp 1 is consistent with that of the threaded hole of the slideway 5-1, and a bolt is inserted into the fixing clamp 1 and the slideway 5-1 to fixedly connect the fixing clamp 1 and the slideway. The radial position of the turning tool 8 can be adjusted in a large range by changing the connection position of the bolt and further changing the relative position of the fixing clamp 1 and the slideway 5-1.
The rotating hand wheel 7-1 and the screw rod 7 are provided with positioning grooves in the radial direction, hand wheel positioning pins are inserted into the positioning grooves, and the rotating hand wheel 7-1 is fixedly connected with the screw rod 7 through the hand wheel positioning pins.
An inlaid strip is arranged between one side of the threaded sliding table 5-2 and the slideway 5-1, bolt holes are arranged in the positions, corresponding to the inlaid strips, of the slideway 5-1, and the inlaid strips are pressed tightly through the bolts, so that lateral gaps are eliminated.
The inner sides of two arms of the slideway 5-1 are fixedly connected with panel pressing plates 5-2, panels are arranged below the panel pressing plates 5-3, the panel pressing plates 5-3 are used for embedding and pressing the surfaces of the end parts of the two arms of the slideway 5-1, bolts are arranged on the panel pressing plates 5-3, the panels are pressed tightly through the bolts, and gaps between the threaded sliding table 5-2 and the slideway 5-1 are eliminated.
The invention relates to a precision rotary turning tool rest, which has the following working principle:
the tool rest assembly 5 is installed on the guide rail 2 through the fixing clamp 1, moves left and right along the guide rail 3 under the driving of the lead screw, finely adjusts the radial position of the turning tool 8 by rotating a hand wheel, adjusts the radial position of the turning tool 8 in a large range by changing the relative position of the slide way 5-1 connected with the bolt and the fixing clamp 1, and can also change the position between the turning tool 8 and the thread sliding table 5-2 and adjust the radial position of the turning tool 8 in a certain range.
As shown in figure 6, a rotating hand wheel 7-1 is fixedly connected with a screw rod 7 through a hand wheel positioning pin, the screw rod 7 is connected with a fixed thread support 6-2 through a thread 1, the fixed thread support is fixedly connected with a guide sleeve through a jackscrew, and the guide sleeve 6-1 is fixedly connected with a slideway through a bolt. The lower part of the screw rod is connected with the thread sliding table through the thread 2, and the screw rod 7 can drive the thread sliding table 5-2 to slide up and down between the panel and the slideway 5-1 when rotating. The screw rod is provided with an upper section of thread and a lower section of thread, the screw thread has different rotating directions and different screw pitches. When the hand wheel is rotated, the radial movement direction of the screw rod along the processed shaft is opposite to the movement direction of the thread sliding table.
As shown in figures 7 and 8, the upper part of the thread sliding table 5-2 is provided with a groove, and the turning tool rod can be fixed in the groove through a bolt. The bottom of the threaded sliding table 5-2 is provided with a threaded hole, and the thread pitch is different from that of the thread on the fixed threaded support 6-2. An inlaid strip is arranged between one side of the threaded sliding table 5-2 and the slideway, bolt holes are arranged in the positions, corresponding to the inlaid strips, of the slideway 5-1, and the inlaid strips are pressed tightly through the bolts, so that lateral gaps are eliminated. The upper part of the slideway 5-1 is provided with a left panel pressing plate 5-3 and a right panel pressing plate 5-3, the lower part of the panel pressing plate 5-3 is provided with a panel, the panel pressing plate 5-3 is provided with a bolt, and the panel is pressed tightly through the bolt to eliminate the gap between the threaded sliding table 5-2 and the slideway 5-1.
The invention discloses a precision rotary turning tool rest, which has the beneficial effects that: the radial position of the turning tool can be finely adjusted by rotating the hand wheel, precise radial feeding precision is provided, and the journal processing of different diameters is adapted by changing the radial relative positions of the slide way and the connecting plate which are connected by the bolt.
Example 1
The screw rod 7 in fig. 5 is divided into three sections, the uppermost part is an optical axis, and the screw rod can penetrate through an inner hole of a rotating hand wheel 7-1 and then is fixed with the rotating hand wheel 7-1 through a hand wheel positioning pin. The middle part and the lower part are provided with threads with different screwing directions and screw pitches. The middle part is connected with the fixed thread support 6-2 through the fine threads in the inner hole of the fixed thread support 6-2, the fixed thread support 6-2 is fixedly connected with the guide sleeve 6-1 through the left and the right jackscrew screws, and the guide sleeve 6-1 is fixedly connected with the slideway 5-1 through the bolt. The slideway 5-1 is connected with the fixing clamp 1 through a bolt. The lower part of the screw rod 77 is connected with the thread sliding table 5-2 through coarse threads.
The inner hole of the fixed thread support 6-2 connected with the slideway 5-1 is provided with a threaded hole with the thread pitch P1 being 1mm, and the threaded hole is matched with the threaded hole with the thread pitch being 1mm at the upper end of the screw rod 7. Since the fixing screw bracket 6-2 is fixed, the screw rod 7 is retracted upward by 1mm every time the screw rod 7 rotates one turn clockwise.
And a threaded hole with the thread pitch P2 being 1.25mm is formed in the thread sliding table 5-2 and is matched with a thread section with the thread pitch of 1.25mm at the lower end of the screw rod. Since the thread sliding table 5-2 can move up and down along the slideway 5-1, the thread sliding table 5-2 is fed down by 1.25mm every time the screw rod 7 rotates clockwise once. Because the screw 7 rotates with the slide up to 1mm, the actual feed of the threaded slide 5-2 relative to the slide 5-1 is:
D-1.25-1.C0-0.25mm
the feeding is realized by rotating a hand wheel 7-1, scale points are carved on the lower part of the hand wheel, and 100-grid scale lines are carved on the excircle part of the fixed thread support 6-2. Therefore, the feed amount of the thread sliding table 5-2 is D1 when the hand wheel is rotated by one grid scale and the hand wheel is rotated by one grid scale:
i.e. the feed accuracy of the system can reach 2.5 microns. Therefore, the system can realize micron-scale micro-feeding through the thread bracket and the thread sliding table 5-2 matched with the double-end threads with different thread pitches. Meanwhile, the production process is simple, and the micro-feeding is realized by a mechanical structure, so that the micro-feeding device has the advantages of reliability and long service life. The micro-feeding system can be conveniently and rapidly realized and improved according to requirements for equipment needing micro-feeding.
The maximum radial feed amount of the fine adjustment system is designed to be 25mm, which is larger than the radial distance of the bolt holes on the back of the slideway 5-1 shown in fig. 6 by 20mm, if the processed shaft neck exceeds the maximum feed amount, the slideway 5-1 and the connecting plate need to be detached, and the relative position of the slideway 5-1 and the connecting plate along the radial direction of the processed shaft is adjusted and then fixed again, so that the large-range adjustment of the turning tool along the radial direction of the shaft neck is realized.
Because the turning tool 8 is fixed on the thread sliding table 5-2 through the bolt, the position of the turning tool can be adjusted along the radial direction of the processed shaft neck by loosening the bolt on the thread sliding table 5-2, and the large-range adjustment of the turning tool along the radial direction of the shaft neck is realized to a certain extent.
Claims (8)
1. The utility model provides a precision gyration turning knife rest, its characterized in that, including fixation clamp (1), lead screw (2) and guide rail (3), guide rail (3) and lead screw (2) parallel mount have a motor between two movable coil (4), and the end connection that lead screw (2) pole passed movable coil (4), fixation clamp (1) is the U type clamp, and the equal rigid coupling of two arm tip of fixation clamp (1) has guide rail clamp plate (1-1), and guide rail clamp plate (1-1) is inboard at fixation clamp (1) with guide rail (2) from both ends, and fixation clamp (1) middle part rigid coupling has nut (1-2), nut (1-2) and lead screw cooperation, fixation clamp (1) middle part outside rigid coupling have knife rest assembly (5).
2. The precision rotary turning tool rest according to claim 1, wherein the tool rest assembly (5) comprises a slide way (5-1), the slide way (5-1) is a U-shaped rail, the slide way (5-1) is fixedly connected to the outer side of the middle part of the fixing clamp (1), a guide sleeve assembly (6) is fixedly connected to one end of the slide way, a lead screw (7) is inserted into the inner side of the guide sleeve assembly (6), a rotating hand wheel (7-1) is fixedly connected to the top end of the lead screw (7), the outer wall of the upper half section of the lead screw (7) is provided with a fine thread, the lower half section of the lead screw is provided with a coarse thread, the fine thread and the coarse thread are different in rotation direction, the pitch of the coarse thread is larger than that of the fine thread, a thread sliding table (5-2) is arranged on the inner side of the slide way (5-1), a threaded hole is formed in the bottom of the thread sliding table (5-2), and the lead screw (7) is inserted into the threaded hole, the threaded hole is connected with the screw rod (7) through a coarse thread, the upper part of the thread sliding table (5-2) is provided with a groove, and a turning tool (8) is fixedly connected in the groove.
3. The precision rotary turning tool holder according to claim 2, characterized in that the guide sleeve assembly (6) comprises a guide sleeve (6-1), a fixed thread support (6-2) is fixedly connected to the inner side of the guide sleeve (6-1), and the fixed thread support (6-2) is connected with the screw rod (7) through a fine thread.
4. A precision rotary turning tool holder according to claim 1, characterized in that the inside of the clamp (1) is provided with a gib, which is located between the slide rail (3) and the clamp (1), and which gib is in contact with the slide rail (3).
5. The precision rotary turning tool holder according to claim 2, wherein the middle part of the fixing clamp (1) is provided with a threaded hole along the edge, two arms of the slide way (5-1) are provided with threaded holes along the radial direction, the threaded hole of the fixing clamp (1) is consistent with the threaded hole of the slide way (5-1) in aperture size, and a bolt is inserted into the fixing clamp (1) and the slide way (5-1) to fixedly connect the fixing clamp (1) and the slide way.
6. The precision rotary turning tool holder according to claim 2, wherein the rotary hand wheel (7-1) and the screw rod (7) are provided with positioning grooves in the radial direction, a hand wheel positioning pin is inserted into the positioning grooves, and the rotary hand wheel (7-1) is fixedly connected with the screw rod (7) through the hand wheel positioning pin.
7. The precision rotary turning tool holder according to claim 2, wherein an insert is arranged between one side of the thread sliding table (5-2) and the slide way (5-1), a bolt hole is arranged on the slide way (5-1) corresponding to the insert, and the insert is pressed tightly by a bolt.
8. The precision rotary turning tool holder according to claim 2, wherein, as shown in fig. 7, the inner sides of both arms of the slide (5-1) are fixedly connected with the panel pressing plates (5-2), the panels are arranged under the panel pressing plates (5-3), the panel pressing plates (5-3) are embedded and pressed on the surfaces of the end parts of both arms of the slide (5-1), and the panel pressing plates (5-3) are provided with bolts for pressing the panels tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110485351.6A CN113199041A (en) | 2021-04-30 | 2021-04-30 | Precision rotary turning tool rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110485351.6A CN113199041A (en) | 2021-04-30 | 2021-04-30 | Precision rotary turning tool rest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113199041A true CN113199041A (en) | 2021-08-03 |
Family
ID=77028426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110485351.6A Pending CN113199041A (en) | 2021-04-30 | 2021-04-30 | Precision rotary turning tool rest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113199041A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857920A (en) * | 2021-10-27 | 2021-12-31 | 安庆盛河水利科技有限公司 | Portable large-diameter circular steel tube turning special device |
| CN114012445A (en) * | 2021-11-11 | 2022-02-08 | 河北国源电气股份有限公司 | Online turning tumbling mill for steam turbine rotor |
| CN114951713A (en) * | 2022-04-28 | 2022-08-30 | 浙江科技学院 | Special turning ellipsoid cutter assembly for engine lathe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113857920A (en) * | 2021-10-27 | 2021-12-31 | 安庆盛河水利科技有限公司 | Portable large-diameter circular steel tube turning special device |
| CN114012445A (en) * | 2021-11-11 | 2022-02-08 | 河北国源电气股份有限公司 | Online turning tumbling mill for steam turbine rotor |
| CN114951713A (en) * | 2022-04-28 | 2022-08-30 | 浙江科技学院 | Special turning ellipsoid cutter assembly for engine lathe |
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Application publication date: 20210803 |