CN114918757A - High-precision hole repairing method - Google Patents
High-precision hole repairing method Download PDFInfo
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- CN114918757A CN114918757A CN202210592450.9A CN202210592450A CN114918757A CN 114918757 A CN114918757 A CN 114918757A CN 202210592450 A CN202210592450 A CN 202210592450A CN 114918757 A CN114918757 A CN 114918757A
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- Prior art keywords
- hole
- product
- cylindrical pin
- repairing
- clamping
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
- B23P9/02—Treating or finishing by applying pressure, e.g. knurling
- B23P9/025—Treating or finishing by applying pressure, e.g. knurling to inner walls of holes by using axially moving tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The application relates to a high-precision hole repairing method, and belongs to the technical field of machining. Which comprises the following steps: 1) and manufacturing a cylindrical pin, and tapering one end of the cylindrical pin (the hardness of the material of the cylindrical pin is higher than that of a repaired product, and the diameter of the cylindrical pin is 0.003-0.006 mm larger than the minimum value of the repaired aperture. Such as: the aperture phi is 10H6, and the diameter of the cylindrical pin is 10.003-10.006 mm); 2) placing the product on a repairing device; 3) determining the position of a hole on the product; 4) and inserting the conical end of the cylindrical pin into the hole to be repaired for guiding, applying force to the cylindrical pin, enabling the cylindrical pin to pass through the hole, and completing the repair of the diameter of the hole. The method and the device have the effect of better processing the problem that the diameter of the hole is smaller and worse.
Description
Technical Field
The application relates to the field of machining, in particular to a high-precision hole repairing method.
Background
In machining, many products need to be machined with high-precision positioning pin holes, small shaft holes and the like, and the problem of small and ultra-poor diameter is inevitable when the high-precision small-specification holes are machined. When the out-of-tolerance is less than or equal to 0.02mm, the hole diameter is repaired by boring, reaming, grinding and other means instead of smooth operation due to too little cutting allowance, fine sand paper or other polishing tools are usually used for manual slow grinding repair, and the method is very common particularly on some cast iron products.
The repairing method of manually and slowly grinding the sand paper or other polishing tools not only has long time for repairing, but also is easy to damage the roundness and the surface roughness of the hole, and has undesirable effect. Therefore, a new processing method needs to be designed to better deal with the problem of small and poor diameter of the hole.
Disclosure of Invention
In order to better solve the problem that the diameter of the hole is smaller and out of tolerance, the application provides a high-precision hole repairing method.
The high-precision hole repairing method provided by the application adopts the following technical scheme:
a high-precision hole repairing method comprises the following steps:
1) manufacturing a cylindrical pin, and making one end of the cylindrical pin into a conical shape;
2) placing the product on a repairing device;
3) determining the position of a hole on the product;
4) and inserting the conical end of the cylindrical pin into a hole to be repaired for guiding, applying force to the cylindrical pin, enabling the cylindrical pin to pass through the hole, and completing the repair of the diameter of the hole.
Through adopting above-mentioned technical scheme, through squeeze into a cylindric lock in corresponding downthehole on the product, through the cylindric lock extrusion and the friction to the pore wall at the in-process through the hole to the size of restoration hole makes the size in hole reach the requirement of design, and at the restoration in-process, pore wall partial wear, but partial extrusion back, further improve the hardness in hole, play further hardening to the hole effect, the hole on the product is corresponding more stable, is difficult to warp inefficacy.
Optionally, prosthetic devices includes the workstation and is located the push down subassembly of workstation top, the workstation is equipped with the installation position that supplies the product to settle, the exposed space in the hole of exposed product is seted up to the installation position, the push down subassembly includes the centre gripping the anchor clamps of cylindric lock and drive the driving piece that moves down that anchor clamps moved down.
Through adopting above-mentioned technical scheme, the workstation supplies the product to settle, wherein expose the exposed space in the hole of product on the workstation, make the cylindric lock can be smooth and easy pass and can not receive the restriction of workstation from the hole on the product, anchor clamps centre gripping cylindric lock, it moves down driving piece drive anchor clamps and moves down, and then drive the cylindric lock and move down, the cylindric lock inserts downthehole on the product, only need at last to extrude the cylindric lock from downthehole, can accomplish the repair work of hole, adopt the mode of machinery pushing down, the holding of holding down force is better vertical, the artifical degree of difficulty to the hole that puts has been reduced, the cylindric lock is also difficult to cause the skew extrusion to destroy because of the pushing down force skew to the opening of hole.
Optionally, a clamping assembly for clamping a product is arranged on the workbench, the clamping assembly includes four clamping blocks, four horizontal driving members for driving the clamping blocks to move horizontally, and four first flexible fixing members, the four clamping blocks are respectively arranged on four sides of the installation position, and the corresponding horizontal driving members are also four; the clamping block comprises a stress part and two abutting parts, the stress part is connected with the horizontal driving part, the two abutting parts are arranged at intervals in the stress part along the horizontal direction, and the end parts, far away from the stress part, of the two abutting parts are used for abutting against a product; the first flexible fixing piece covers the end part of the abutting part for abutting, and elastic retraction pieces are arranged at two ends of the first flexible fixing piece, so that the first flexible fixing piece is kept in a tight state.
Through adopting the above technical scheme, the butt piece adopts the mode of two butt portions to carry out the butt to the product, compare in a whole butt piece carry out the butt to the product, area of contact can keep as far as possible bigger, it is better to the anomalous product butt effect of outward appearance, simultaneously through setting up first flexible mounting, on the one hand, further clamping action is carried out to the bulge portion of the product that lies in between two butt portions, and first flexible mounting can the outer wall of adaptation product, the centre gripping effect is better, simultaneously because first flexible mounting covers butt portion, thereby can protect butt portion, make butt portion and product be difficult to wear each other, product to different appearances, above-mentioned centre gripping subassembly all can exert certain clamping action, the suitability is wider.
Optionally, a clamping assembly for clamping a product is arranged on the workbench, the clamping assembly includes four clamping blocks, four horizontal driving members for driving the clamping blocks to move horizontally, and four first flexible fixing members, the four clamping blocks are respectively arranged on four sides of the installation position, and the corresponding horizontal driving members are also four; and a second flexible fixing piece is arranged between every two adjacent clamping blocks, and elastic retraction pieces are arranged at two ends of the second flexible fixing piece, so that the second flexible fixing piece is kept in a tight state.
Through adopting above-mentioned technical scheme, through the second flexible mounting that sets up for also can produce better fixed action to the four corners of product, fixed effect is better, and the appearance of product is also adapted more easily, cooperates first flexible mounting, thereby carries out the stability of peripheral total position to the product.
Optionally, the workbench is provided with a positioning assembly, the positioning assembly comprises a positioning column, a vertical positioning driving part for driving the positioning column to move upwards, and a horizontal positioning driving part for driving the positioning column to move horizontally, an inflation bulging structure is arranged at the end part of the positioning column, the positioning column moves horizontally and then moves reversely when being positioned, and finally the center position is recovered to correspond to the pressing assembly.
Through adopting above-mentioned technical scheme, can finely tune the product position through locating component, make product position and cylindric lock push down the direction and correspond, thereby prepare for the repair process, improve and restore the precision, it is concrete, move towards a direction through the reference column earlier and drive the product motion, in order to solve the position error when placing the product and placing, reverse motion process again, take the position of needs to the product, the reference column resumes former fixed position at last, the structure is bloated in aerifing of rethread location capital portion, accomplish final fine setting, hole on the guarantee product is coaxial with the cylindric lock.
Optionally, the positioning assembly further comprises a moving column, the moving column vertically moves along with the positioning column, a ball is installed at the top of the moving column in a rolling mode, and a moving column hole for the moving column to move upwards and protrude out of the surface is formed in the workbench.
Through adopting above-mentioned technical scheme, when carrying out product position fine setting, through removing the post jack-up product, because remove the capital portion and install the ball for the product can be under the drive of reference column, more smooth and easy removal, thereby be difficult to exert too big counter-force to the reference column because of the frictional force between product and the workstation, lead to the reference column to warp, finally influence the regulation of product position, indirect position precision that makes the product after adjusting is higher.
Optionally, the subassembly that pushes down still including supplying the seat that pushes down of anchor clamps installation, anchor clamps include the control cabinet, set up in the centre gripping arm, the drive in the control cabinet outside the centre gripping arm court the centre gripping driving piece of control cabinet axis motion, the centre gripping arm is two at least, and is corresponding the centre gripping driving piece is two at least, the confession has been seted up to the control cabinet the jack of cylindric lock cartridge, the pore wall of jack is equipped with control the first start button of centre gripping driving piece, just the start control of centre gripping driving piece adopts two switches AND gate control logic and has the second start button.
By adopting the technical scheme, the control seat is used for the cylindrical pin to be arranged, when the cylindrical pin is inserted into the jack, the first starting button can be triggered, so that when the cylindrical pin is inserted into the jack, the clamping driving piece is started, the clamping process of the cylindrical pin is completed, the operation is simple and convenient, and meanwhile, the first starting button is arranged on the hole wall of the jack, so that when the force is applied to the cylindrical pin and is driven into the hole of a product, the first starting button is not easily damaged due to overlarge pressure, and the mutual interference of the pressing function is kept while the clamping triggering is ensured; set up the centre gripping driving piece and adopt two AND gate control logics that open the door, then make, the cylindric lock can also break away from the clamping state through controlling second start button, and the follow-up cylindric lock of being convenient for breaks away from the jack.
Optionally, the pressing assembly further includes a pressing rod assembly, the pressing rod assembly includes a pressing rod, a pressing rod cylinder and a limiting cylinder, one end of the pressing rod slides through the pressing seat, the end face of the pressing rod serves as the bottom of the jack, the pressing rod cylinder drives the pressing rod to move axially, the pressing rod is provided with a plurality of gear holes, and the limiting cylinder is inserted into the gear holes to limit axial movement of the pressing rod.
By adopting the technical scheme, the function of pressing the cylindrical pin into the hole on the product and the subsequent function of further pressing the cylindrical pin are integrated, so that continuous work is facilitated, repeated centering is not needed, and the precision of the repairing process is higher; the whole repairing process is completed by downwards moving the pressure lever in multiple gears and downwards pressing the cylindrical pin for multiple times, and the pressure lever downwards moves in multiple gears and downwards presses for multiple times, compared with one-time downwards pressing, on one hand, the pressure lever does not need to be extended out for a long time at one time, therefore, when the pressing rod is pressed down, the length of the pressing rod between the control seat and the product is not too long, the possibility of complete deformation of the middle part is generated, after the pressing rod extends out every time, the cylindrical pin moves down partially, the downward pressure of the pressing column is needed to be most stable because the cylindrical pin is just driven in for the first time, therefore, the pressure column is integrally arranged in the control seat, which can better meet the stability requirement, when the cylindrical pin is completely inserted into the hole, the end part of the pressure column can be inserted into the hole, thereby stabilize the depression bar through the pore wall to the difficult position of guarantee depression bar is stable warp, and whole pushing down process is continuous again reasonable, has kept better stability again on the basis of locking down the time as far as possible.
Optionally, in step 3), the position of the hole is determined first, then the position of the product is adjusted, and then the position of the product is fixed.
Through adopting above-mentioned technical scheme, adjust the product position earlier, carrying out subsequent repair process for the structure of whole equipment is simpler, does not need the cylindric lock to have the horizontal migration ability, only need have down press stability can, the function still less, also more stable, guarantee repair process's stability, need not rely on the manual work to carry out the selection of hole position again completely simultaneously, and it is more convenient to adjust.
In conclusion, a cylindrical pin is driven into a corresponding hole in a product, and the hole wall is extruded and rubbed by the cylindrical pin in the process of passing through the hole, so that the size of the hole is repaired, the size of the hole meets the design requirement, the hole wall is partially abraded in the repairing process, but the hardness of the hole is further improved after the hole is partially extruded, the hardening effect on the hole is further achieved, the hole in the product is correspondingly more stable, and the hole is not easy to deform and fail.
Drawings
FIG. 1 is a schematic structural view of a cylindrical pin in an embodiment of the present application;
FIG. 2 is a schematic view of the construction of a prosthetic device according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a workbench in an embodiment of the present application;
FIG. 4 is a cross-sectional view of the structure of a clamping assembly in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a positioning assembly in an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a lower pressing base in the embodiment of the present application 1;
fig. 7 is a schematic structural diagram 2 of a lower pressing base in the embodiment of the present application.
Description of reference numerals: 1. a cylindrical pin; 2. a work table; 21. setting a position; 22. an exposed space; 23. a placing groove; 3. pressing the assembly; 31. a clamp; 311. a control seat; 3111. a jack; 312. a clamp arm; 313. clamping the driving member; 32. pressing down the base; 33. a downward moving driving member; 331. a hydraulic cylinder; 332. a movable beam; 34. a guide post; 4. a clamping assembly; 41. a clamping block; 411. a force receiving portion; 412. an abutting portion; 42. a horizontal drive member; 43. a first flexible mount; 44. a second flexible mount; 45. a first flexible abutment space; 46. a second flexible abutment space; 47. an elastic retractor; 48. an elastic wall; 49. an elastic hole; 5. a positioning assembly; 51. positioning a plate; 52. a positioning column; 53. vertically positioning a driving member; 54. a horizontally positioning drive member; 55. moving the column; 56. a ball bearing; 6. a compression bar assembly; 61. a pressure lever; 611. a drive block; 612. a first gear hole; 613. a second gear hole; 614. a third gear hole; 62. a compression bar cylinder; 63. a limiting member; 631. a vertical bar; 6321. a first limit strip; 6322. a second limit strip; 6323. a third limiting strip; 641. a first limit cylinder; 642. a second limit cylinder; 643. and a third limiting cylinder.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses a method for repairing a high-precision hole.
Referring to fig. 1, a method for repairing a high-precision hole includes the steps of:
1) manufacturing a cylindrical pin 1, wherein one end of the cylindrical pin 1 is tapered (refer to fig. 1), the hardness of the material of the cylindrical pin 1 is higher than that of a repaired product, and the diameter of the cylindrical pin 1 is 0.003-0.006 mm larger than the minimum value of the repaired aperture; such as: the aperture phi is 10H6, and the diameter of the cylindrical pin 1 is 10.003-10.006 mm;
2) placing the product on a repairing device;
3) the position of hole on the definite product, the position in hole is confirmed earlier, then the product position is adjusted, makes hole and cylindric lock 1 position right, and does not adopt the form of cylindric lock 1 to the hole, then carries out the fixed of product position: specifically, a product is placed at the installation position 21, the positioning column 52 is inserted into the hole, when the positioning column 52 is positioned, the vertical positioning driving assembly is started, the moving column 55 is lifted to drive the product to lift, then the product is driven to move together by horizontal movement, then the product is driven to move together by reverse movement, finally the central position is restored, the inflation outward expansion function is started, and the final fine adjustment of the position of the product is completed;
wherein the sequence of the steps of inflating and expanding the positioning column 52 and moving the positioning column can be interchanged;
starting the clamping assembly 4 to clamp and fix the product, and then moving the positioning plate 51 downwards to drive the positioning column 52 to move downwards to be far away from the product;
4) inserting the conical end of the cylindrical pin 1 into a hole to be repaired as a guide, wherein the partial insertion of the cylindrical pin 1 is completed firstly, the final adjustment of the position of a product is completed, in the process, the product is jacked up by keeping the lifting state of the movable column 55 in two steps, the final adjustment of the position of the product is facilitated, then the movable column 55 moves downwards to be separated, the lower pressing seat 32 drives the cylindrical pin 1 to be partially inserted, then the clamping of the cylindrical pin 1 is released through a second starting button, the lower pressing seat 32 moves upwards again, the adjusting pressing rod 61 enters a second gear from a first gear, the pressing rod 61 extends out, the first starting button is triggered, the pressing rod 61 is clamped through the clamping arm 312 again, then the lower pressing seat 32 moves downwards, the lower pressing cylindrical pin 1 completely enters the hole, then the lower pressing seat 32 moves upwards again, in the moving process, the control arm releases the pressing rod 61 through the second starting button, and the limiting strips move outwards, the pressure rod cylinder 62 drives the pressure rod 61 to move downwards at the same time, so that when the lower pressure seat 32 moves upwards, the position of the pressure rod 61 is kept unchanged, then the gear of the pressure rod 61 is fixed again, finally the lower pressure seat 32 moves downwards, the cylindrical pin 1 is pressed out of a hole in a product, the cylindrical pin 1 penetrates through the hole, and the diameter repair of the hole is completed.
Referring to fig. 2, the repairing device comprises a workbench 2 and a pressing assembly 3 located above the workbench 2, wherein a product is placed on the workbench 2, the pressing assembly 3 is used for driving a cylindrical pin 1 into a hole in the product, and finally the cylindrical pin 1 penetrates through the hole to complete the repairing of the diameter of the hole.
Referring to fig. 3, the workbench 2 is a cuboid standing in the height direction, the middle of the upper side wall of the workbench 2 is provided with a placement position 21 for placing a product, the middle of the placement position 21 is provided with an exposed space 22 for exposing a hole of the product, the exposed space 22 is provided, so that the cylindrical pin 1 can smoothly pass through the hole and fall into the exposed space 22, a placement groove 23 is provided on one side wall of the lower part of the workbench 2, and the exposed space 22 is communicated with the placement groove 23.
Referring to fig. 3 and 4, a clamping assembly 4 for clamping a product and a positioning assembly 5 for determining a product placement position and moving the product to a corresponding position are disposed on the worktable 2, the clamping assembly 4 includes four clamping blocks 41, horizontal driving members 42 for driving the clamping blocks 41 to move horizontally, first flexible fixing members 43 and second flexible fixing members 44, the four clamping blocks 41 are respectively disposed on four sides of the placement position 21, the corresponding horizontal driving members 42 are also four, the four horizontal driving members 42 correspond to the four clamping blocks 41, and the horizontal driving members 42 can be air cylinders; the clamping block 41 includes a force-receiving portion 411 and two abutting portions 412, the force-receiving portion 411 is in a flat plate shape, one plate surface is fixed to the piston rod of the horizontal driving member 42, the other plate surface is provided with two abutting portions 412, the two abutting portions 412 and the force-receiving portion 411 are integrally fixed and are arranged at intervals along the length direction of the force-receiving portion 411, the two abutting portions 412 are used for abutting against a product, and the end portion, far away from the force-receiving portion 411, of the abutting portion 412 is used for abutting against the product.
The space between two abutting parts 412 of the same abutting block is set as a first flexible abutting space 45, the space between the adjacent abutting parts 412 of the adjacent abutting blocks is set as a second flexible abutting space 46, the first flexible fixing piece 43 is located between the two abutting parts 412 of the same abutting block and covers the end part of the abutting part 412 used for abutting and the first flexible abutting space 45, two ends of the first flexible fixing piece 43 are provided with elastic retraction pieces 47, the elastic retraction pieces 47 can be clamp springs or elastic ropes, one end of each elastic retraction piece 47 is connected with the end part of the first flexible fixing piece 43, the other end of each elastic retraction piece is connected with the stress part 411, so that the first flexible fixing piece 43 is kept in a tight state, the first flexible fixing piece 43 protects the abutting surfaces between the abutting parts 412 and a product, wherein the two elastic retraction pieces 47 at each end of the first flexible fixing piece are arranged at intervals along the vertical direction.
An elastic wall 48 is vertically arranged on the workbench 2 at a position, far away from the installation position 21, of each second flexible abutting space 46, the second flexible fixing piece 44 is arranged between two adjacent abutting parts 412 of the adjacent abutting blocks, the second flexible fixing piece 44 covers the second flexible abutting space 46, two ends of the second flexible fixing piece 44 are also provided with elastic retraction pieces 47, the elastic retraction pieces 47 at two ends of the second flexible fixing piece 44 are made of elastic ropes, the side walls, opposite to each other, of the two abutting parts 412 of the same abutting block are provided with elastic holes 49, the inlet and the outlet of each elastic hole 49 are arranged on the same side wall, one end of each elastic retraction piece 47 is connected with the end part of the first flexible fixing piece 43, the other end of each elastic retraction piece passes through the elastic hole 49 and then is connected to the elastic wall 48, so that the second flexible fixing piece 44 is kept in a tight state, two elastic retraction pieces 47 are arranged at each end of the second flexible fixing piece at intervals along the vertical direction; the elastic retractors 47 at the end of the first flexible fixing member 43 and the elastic retractors 47 at the end of the second flexible fixing member 44 may be arranged alternately or inside and outside.
Referring to fig. 3 and 5, the positioning assembly 5 includes a positioning plate 51, a positioning column 52, a plurality of moving columns 55, a vertical positioning driving member 53 and a horizontal positioning driving member 54, the vertical positioning driving member 53 can be an oil cylinder and is installed in the installation groove 23 of the workbench 2, a piston rod of the vertical positioning driving member 53 is vertically disposed upward, a plate surface of the positioning plate 51 is fixed on the piston rod of the vertical positioning driving member 53, the plurality of moving columns 55 are vertically fixed on the plate surface of the positioning plate 51 away from the vertical positioning driving member 53, in this embodiment, the number of moving columns 55 is eight, wherein four removal post 55 are located the four corners of naked space 22, and four removal posts 55 are located the four sides of settling position 21, and workstation 2 is vertical to be seted up and to be supplied to remove the removal post 55 hole that post 55 wore out, and the removal post 55 that is located the four sides of settling position 21 slides and sets up in removing post 55 downtheholely, and the top roll of every removal post 55 installs ball 56 simultaneously.
The positioning column 52 is arranged in the middle of the positioning plate 51, the positioning column 52 corresponds to the middle of the exposed space 22, and an inflation bulge structure is arranged at the end part of the positioning column 52, so that the top of the positioning column 52 has an inflation outward expansion function; the positioning column 52 is slidably mounted on the positioning plate 51 along the length direction of the positioning plate 51, a sliding groove is formed in the specific positioning plate 51, a sliding block matched with the sliding groove is arranged at the bottom of the positioning column 52, the horizontal positioning driving part 54 can also adopt an oil cylinder, a piston rod of the horizontal positioning driving part 54 is fixed to the top of the positioning column 52, for the stability of the positioning column 52, the horizontal positioning driving part 54 can also be mounted on the positioning plate 51 through a shelf, and then the piston rod of the horizontal positioning driving part 54 is fixed to the middle of the positioning column 52; meanwhile, the horizontal positioning driving part 54 is positioned between the outer ring of the moving column 55 and the inner ring of the moving column 55, so that the arrangement of the moving column 55 does not influence the sliding driving of the positioning column 52, and the horizontal positioning driving part can be adapted to jacking operation of different product shapes.
Referring to fig. 2, 6 and 7, the pressing assembly 3 includes a clamp 31, a pressing base 32, a downward moving driving member 33 and a pressing rod assembly 6, the downward moving driving member 33 is used for driving the pressing base 32 to move vertically, guide posts 34 for slidably mounting the pressing base 32 are disposed at four corners of the workbench 2, the sliding direction of the pressing base 32 is limited by the guide posts 34, the downward moving driving member 33 is fixed at the top ends of the four guide posts 34, the downward moving driving member 33 includes a hydraulic cylinder 331 and a moving beam 332 similar to a pressure driving portion of the hydraulic press, the moving beam 332 is slidably mounted on the four guide posts 34 and located above the pressing base 32, and four sides of the moving beam 332 are associated with the pressing base 32 through four pushing posts, so that the moving beam 332 can drive the pressing base 32 to slide up and down together.
Anchor clamps 31 are used for centre gripping cylindric lock 1 and set up on pushing down the lateral wall of seat 32 towards workstation 2, anchor clamps 31 include control holder 311, set up in the centre gripping arm 312 in the control holder 311 outside, drive centre gripping arm 312 towards the centre gripping driving piece 313 of control holder 311 axis motion, centre gripping arm 312 is two at least and is wound control holder 311 circumference equiangular interval and set up, centre gripping arm 312 is equipped with threely in this embodiment, thereby it is fixed to carry out the three-jaw to cylindric lock 1, and is more stable, corresponding centre gripping driving piece 313 also is equipped with threely with centre gripping arm 312 correspondence, centre gripping driving piece 313 can adopt the hydro-cylinder, three centre gripping driving piece 313 is located outside three centre gripping arm 312, three centre gripping driving piece 313 one-to-one correspondence drives three centre gripping arm 312 and does the motion of being close to and keeping away from control holder 311.
The control seat 311 is cylindrical and coaxially provided with a jack 3111 for the insertion of the cylindrical pin 1, the hole wall of the jack 3111 is provided with a first start button for controlling the clamping driving member 313, and is further provided with a second start button for electric control and manual control, the start control of the clamping driving member 313 adopts a double switch and gate control logic, namely, the first start button and the second start button are both required to be triggered, the clamping arm 312 keeps a clamping state for the cylindrical pin 1, any start button can trigger the retraction motion of the clamping arm 312, and the cylindrical pin 1 is loosened.
The pressure lever assembly 6 comprises a pressure lever 61, a pressure lever cylinder 62, three limiting cylinders and a limiting part 63, one end of the pressure lever 61 slides through the lower pressure seat 32, and the end surface of the pressure lever 61 serves as the bottom of the jack 3111, the other end of the pressure lever 61 protrudes out of the lower pressure seat 32 and is located between the lower pressure seat 32 and the movable beam 332, the three limiting cylinders are arranged, the four sides of the pressure lever 61 are respectively arranged on the three limiting cylinders and the pressure lever cylinder 62, the pressure lever cylinder 62 is mounted on the lower pressure seat 32 through a support, a driving block 611 located below a piston rod of the pressure lever cylinder 62 is arranged on the side wall of the pressure lever 61 in a hanging mode, and the pressure lever 61 is driven to axially move through the pressure lever cylinder 62.
The diameter of the pressure lever 61 is smaller than that of the cylindrical pin 1, so that the pressure lever 61 can smoothly extrude the cylindrical pin 1 to pass through the hole.
The pressure lever 61 is provided with three gear holes, the three gear holes are arranged at intervals along the axial direction of the pressure lever 61, the three gear holes are sequentially arranged into a first gear hole 612, a second gear hole 613 and a third gear hole 614 from bottom to top, the three limiting cylinders are respectively arranged into a first limiting cylinder 641, a second limiting cylinder 642 and a third limiting cylinder 643, and the second limiting cylinder 642 and the pressure lever cylinder 62 are arranged oppositely.
The limiting part 63 comprises a vertical bar 631 and limiting bars, the limiting bars on the three limiting parts 63 are respectively set as first limiting bars 6321, second limiting bars 6322 and third limiting bars 6323 and located at different heights, the first limiting bars 6321 and the third limiting bars 6323 are respectively located at the highest position and the lowest position, the vertical bar 631 is fixed to the piston rod of the limiting cylinder, one end of each limiting bar is fixed to the other end of the vertical bar 631 towards the pressure bar 61, wherein the first limiting bars 6321 correspond to the first limiting cylinder 641, the second limiting bars 6322 correspond to the second limiting cylinder 642, and the third limiting bars 6323 correspond to the third limiting cylinder 643.
Wherein the first gear hole 612 and the second gear hole 613 are cross holes, and the third gear hole 614 is a single hole; when the pressing rod 61 is in the first gear, the first limiting strip 6321 penetrates through the first gear hole 612, when the pressing rod 61 is in the second gear, the first limiting strip 6321 penetrates through the second gear hole 613, the second limiting strip 6322 penetrates through the first gear hole 612, when the pressing rod 61 is in the third gear, the first limiting strip 6321 penetrates through the third gear hole 614, the second limiting strip 6322 penetrates through the second gear hole 613, and the third limiting strip 6323 penetrates through the first gear hole 612.
When needing to be noticed, a piston rod of the limiting cylinder is coaxial with the second limiting strip 6322, two opposite vertical strips 631 are provided with stabilizing holes, and the third limiting strip 6323 and the first limiting hole penetrate through the pressing rod 61 and then are respectively inserted into the corresponding stabilizing holes, so that the third gear is more stable; crisscross and the structure setting of detaining each other to spacing intensity requirement when satisfying different gears, better pushing down cylindric lock 1.
Simultaneously, three spacing gas poles also can be located same side, and the opening orientation in corresponding three gear hole is also unanimous, and when different gears, through inserting spacing strip to all gear holes that can insert completely, also can be used in different gears in time, to the firm and the intensity guarantee of depression bar 61, spacing strip inserts the gear hole and compensaties the corresponding intensity damage of depression bar 61. In the same way, the arrangement of a plurality of limiting air rods can be correspondingly pushed out.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A method for repairing a high-precision hole, comprising the steps of:
1) manufacturing a cylindrical pin (1), and making one end of the cylindrical pin into a cone shape;
2) placing the product on a repairing device;
3) determining the position of a hole on the product;
4) and inserting the tapered end of the cylindrical pin (1) into a hole to be repaired as a guide, and applying force to the cylindrical pin (1) to enable the cylindrical pin (1) to penetrate through the hole to complete the repair of the diameter of the hole.
2. A method of repairing a high accuracy hole according to claim 1, wherein: prosthetic devices includes workstation (2) and push down subassembly (3) that are located workstation (2) top, workstation (2) are equipped with the position of settling (21) that supplies the product to settle, settle the exposed space (22) in the hole that position (21) offered exposed product, push down subassembly (3) including the centre gripping anchor clamps (31) and the drive of cylindric lock (1) anchor clamps (31) move down driving piece (33) that move down.
3. A method of repairing a high accuracy hole according to claim 2, wherein: the worktable (2) is provided with a clamping assembly (4) for clamping products, the clamping assembly (4) comprises four clamping blocks (41), a horizontal driving member (42) for driving the clamping blocks (41) to horizontally move and a first flexible fixing member (43), the number of the clamping blocks (41) is four, the four clamping blocks (41) are respectively arranged on four sides of the installation position (21), and the number of the corresponding horizontal driving members (42) is also four; the clamping block (41) comprises a force-bearing part (411) and two abutting parts (412), the force-bearing part (411) is connected with the horizontal driving part (42), the two abutting parts (412) are arranged on the force-bearing part (411) at intervals along the horizontal direction, and the end part, far away from the force-bearing part (411), of each abutting part (412) is used for abutting against a product; the first flexible fixing piece (43) covers the end part of the abutting part (412) for abutting, and elastic retraction pieces (47) are arranged at two ends of the first flexible fixing piece (43), so that the first flexible fixing piece (43) is kept in a tight state.
4. A method of repairing a high accuracy hole according to claim 2, wherein: the worktable (2) is provided with a clamping assembly (4) for clamping products, the clamping assembly (4) comprises four clamping blocks (41), a horizontal driving member (42) for driving the clamping blocks (41) to horizontally move and a first flexible fixing member (43), the number of the clamping blocks (41) is four, the four clamping blocks (41) are respectively arranged on four sides of the installation position (21), and the number of the corresponding horizontal driving members (42) is also four; a second flexible fixing piece (44) is arranged between the adjacent clamping blocks (41), and elastic retraction pieces (47) are arranged at two ends of the second flexible fixing piece (44) so that the second flexible fixing piece (44) is kept in a tight state.
5. A method of repairing a high accuracy hole according to claim 2, wherein: be provided with locating component (5) on workstation (2), locating component (5) are including vertical location driving piece (53) that reference column (52) and drive reference column (52) shifted up to and drive reference column (52) horizontal migration's horizontal location driving piece (54), reference column (52) tip is equipped with aerifys and rises the structure, earlier horizontal migration then reverse movement when reference column (52) location, restore central point at last and correspond push down subassembly (3).
6. A method of repairing a high accuracy hole according to claim 5, wherein: the positioning assembly (5) further comprises a moving column (55), the moving column (55) vertically moves along with the positioning column (52), a ball (56) is installed on the top of the moving column (55) in a rolling mode, and a moving column (55) hole for the moving column (55) to move upwards to protrude out of the surface is formed in the workbench (2).
7. A high-precision hole repairing method according to claim 2, wherein: push down subassembly (3) still including supplying push down seat (32) of anchor clamps (31) installation, anchor clamps (31) include control holder (311), set up in centre gripping arm (312), the drive in control holder (311) outside centre gripping arm (312) court the centre gripping driving piece (313) of control holder (311) axis motion, at least two, corresponding in centre gripping arm (312) centre gripping driving piece (313) at least two, the confession has been seted up in control holder (311) jack (3111) of cylindric lock (1) cartridge, the pore wall of jack (3111) is equipped with the control the first start button of centre gripping driving piece (313), just the start control of centre gripping driving piece (313) adopts two switches and gate control logic and has the second start button.
8. A method of repairing a high accuracy hole according to claim 7, wherein: the lower pressing assembly (3) further comprises a pressing rod assembly (6), the pressing rod assembly (6) comprises a pressing rod (61), a pressing rod cylinder (62) and a limiting cylinder, one end of the pressing rod (61) slides to penetrate through the lower pressing seat (32) and the end face of the pressing rod serves as the hole bottom of the jack (3111), the pressing rod cylinder (62) drives the pressing rod (61) to move axially, a gear hole is formed in the pressing rod (61), the gear holes are multiple, and the limiting cylinder is inserted into the gear hole to limit the axial movement of the pressing rod (61).
9. A method of repairing a high accuracy hole according to claim 1, wherein: and 3) determining the position of the hole, adjusting the position of the product, and fixing the position of the product.
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| CN202210592450.9A CN114918757B (en) | 2022-05-28 | 2022-05-28 | Repairing method for high-precision hole |
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| CN202210592450.9A CN114918757B (en) | 2022-05-28 | 2022-05-28 | Repairing method for high-precision hole |
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|---|---|
| CN114918757B (en) | 2023-08-29 |
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