CN112008132A - Collision-proof device is directly examined in safe tool changing sounding of digit milling - Google Patents
Collision-proof device is directly examined in safe tool changing sounding of digit milling Download PDFInfo
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- CN112008132A CN112008132A CN202010921734.9A CN202010921734A CN112008132A CN 112008132 A CN112008132 A CN 112008132A CN 202010921734 A CN202010921734 A CN 202010921734A CN 112008132 A CN112008132 A CN 112008132A
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- collision
- telescopic
- tool changing
- steel sheet
- mounting plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
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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
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/1554—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
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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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
- B23Q5/58—Safety devices
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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
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/1554—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
- B23Q2003/155404—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising a single gripper
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses a safe tool changing penetration direct detection bumper for digital milling, which is arranged on a tool changing mechanism; the tool changing mechanism comprises a lathe bed, a tool changing rotating shaft, a tool changing telescopic piston, a tool claw box and a tool claw box positioning pin; the anti-collision device comprises an anti-collision induction support, a telescopic assembly and a Hall magnetic induction assembly which are arranged on the anti-collision induction support, and a Hall magnetic induction travel switch; the Hall magnetic induction assembly is arranged at the upper part of the anti-collision induction bracket, and the telescopic assembly is arranged at the lower part of the anti-collision induction bracket; the Hall magnetic induction travel switch is arranged above the Hall magnetic induction component. The invention has the advantages of easy processing, installation and debugging, safe and reliable use and wide application range, can effectively prevent collision in the tool changing process of the numerical control milling machine, and realizes the function of safe tool changing and collision prevention of the tool claw.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a digital milling safety tool changing penetration straight inspection bumper.
Background
The tool changing mechanism of the numerical control milling machine adopts the technical scheme that a tool claw extends out of a tool grabbing body, a piston drives a tool pulling handle to be pulled out, an encoder controls an angle speed reducing mechanism to drive a tool claw box to rotate 180 degrees, the piston drives the tool to be installed, and the tool claw retracts into the tool claw box, so that the tool changing task is completed. If the encoder or the transmission system has misoperation in the tool changing process, the risk of collision when the piston drives the tool to be mounted is high under the condition that whether the tool is in the correct position or not is not directly identified. If a locking ring screw of a locking ring of an encoder is loosened in a used Swiss Mikelang five-axis numerical control machining center (model UCP1000), a shaft of a corner speed reducer and a hole of the encoder randomly rotate and slide, although an electric control system receives the feedback of the encoder that tool changing position data is correct, a tool handle grasped by a tool claw is not positioned right in front of a main shaft hole of a machine tool, and a device for directly identifying whether the tool is positioned at the correct position is not arranged, when a manipulator pushes and loads the tool, a tool handle pull nail collides with the outer end face of the main shaft, so that 15 parts such as a link rod of the tool changing manipulator, a tool claw box, a tool grasping arm and the like are damaged, and the five-.
In order to eliminate the collision hidden trouble caused by error identification in the tool changing process of the numerical control milling machine, an anti-collision device needs to be installed on the tool changing mechanism body of the numerical control milling machine.
Disclosure of Invention
The invention aims to overcome the technical problems in the prior art and provides a digital milling safe tool changing contact detection and direct detection bumper.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
a kind of digital milling safe tool changing penetration straight inspection bumper, the said bumper is mounted on tool changing organization; the tool changing mechanism comprises a lathe bed, a tool changing rotating shaft, a tool changing telescopic piston, a tool claw box and a tool claw box positioning pin; the tool changing rotating shaft, the tool changing telescopic piston and the tool claw box positioning pin are all arranged on the lower end face of the bed body; two cutter claws are arranged on the cutter claw box in a centrosymmetric manner; the upper end surface of the knife claw box is provided with a circular truncated cone and two positioning holes intersected with the circular truncated cone;
the centers of the two positioning holes are positioned on the edge of the circular truncated cone, and the included angle between the two positioning holes is 180 degrees; positioning sleeves are arranged in the two positioning holes; the positioning sleeve penetrates through the knife claw box, and a positioning sleeve hole is formed in the center of the positioning sleeve; the anti-collision device is arranged on the front end surface of the lathe bed;
the anti-collision device comprises an anti-collision induction support, a telescopic assembly and a Hall magnetic induction assembly which are arranged on the anti-collision induction support, and a Hall magnetic induction travel switch; the Hall magnetic induction assembly is arranged at the upper part of the anti-collision induction bracket, and the telescopic assembly is arranged at the lower part of the anti-collision induction bracket; the Hall magnetic induction travel switch is arranged above the Hall magnetic induction assembly;
a milling taper shank of the milling cutter grabbed by the cutter claw is aligned with a milling spindle, and two positioning holes are respectively positioned under the positioning pin of the cutter claw box and the telescopic assembly;
when a positioning hole is arranged right below the telescopic assembly, the tool changing telescopic piston drives the tool claw box to move upwards, the lower end of the telescopic assembly extends into the positioning sleeve hole, the upper end of the telescopic assembly extends into the Hall magnetic induction assembly, the Hall magnetic induction travel switch is closed, and the tool changing mechanism keeps normal operation;
when a circular table is arranged under the telescopic assembly, the tool changing telescopic piston drives the tool claw box to move upwards, the circular table drives the telescopic assembly to move upwards, the telescopic assembly pushes the Hall magnetic induction assembly, the Hall magnetic induction travel switch is opened, and the tool changing mechanism is powered off and stopped.
Preferably, the front end surface of the anti-collision induction support is provided with an installation plate, and the rear end surface of the anti-collision induction support is provided with an installation groove; an induction bracket adjusting plate is fixedly arranged in the mounting groove; the induction bracket adjusting plate is provided with a long slot hole; the anti-collision induction support is arranged on the bed body through a screw and a long slotted hole.
Preferably, the mounting plate on the front end face of the anti-collision induction support comprises a mounting plate A, a mounting plate B, a mounting plate C and a mounting plate D from top to bottom in sequence; mounting holes are formed in the mounting plate A, the mounting plate B, the mounting plate C and the mounting plate D; the Hall magnetic induction travel switch is fixedly installed on the lower end face of the installation plate A.
Preferably, the telescopic assembly comprises a contact ejector rod, a contact core connecting rod, an anti-collision telescopic rod and a telescopic rod joint;
the tail part of the contact core connecting rod extends into the head part of the contact ejector rod and is in threaded connection with the head part of the contact ejector rod; a first flat gasket is clamped between the tail part of the contact core connecting rod and the head part of the contact ejector rod; the head of the connecting rod of the contact core is provided with a conical surface and a curved surface connected with the conical surface;
the anti-collision telescopic rod is sleeved outside the contact core connecting rod, and the contact core connecting rod slides in the anti-collision telescopic rod; the head of the anti-collision telescopic rod is provided with a first taper hole, and the rod body of the anti-collision telescopic rod is provided with a first check ring; three balls are arranged between the curved surface and the first taper hole;
a first spring is sleeved outside a contact core connecting rod between the tail of the anti-collision telescopic rod and the first flat gasket;
a first copper guide sleeve and a second copper guide sleeve are respectively assembled in the mounting hole of the mounting plate C and the mounting hole of the mounting plate D in an interference manner;
the anti-collision telescopic rod penetrates through the mounting plate C and the mounting plate D; the first check ring is positioned between the mounting plate C and the mounting plate D; a third copper guide sleeve and a second spring are sequentially sleeved on the anti-collision telescopic rod below the mounting plate D;
the telescopic rod joint is sleeved outside the joint of the contact core connecting rod and the contact ejector rod; a step is arranged in the telescopic rod joint, and a second retaining ring is arranged outside the telescopic rod joint; the head of the telescopic rod joint is in threaded connection with the tail of the anti-collision telescopic rod; the second spring is positioned between the third copper guide sleeve and the second retainer ring; the first flat gasket is limited by the step;
the outer diameter of the telescopic rod joint is matched with the positioning sleeve hole, and the outer diameter of the second check ring is larger than the aperture of the positioning sleeve hole.
Preferably, the Hall magnetic induction assembly comprises a magnetic steel sheet telescopic seat, a magnetic steel sheet and a third spring;
the tail of the magnetic steel sheet telescopic seat is provided with a second taper hole, and the second taper hole and the lower end surface of the magnetic steel sheet telescopic seat are provided with transitional straight holes; a third check ring is arranged on the outer side of the head of the magnetic steel sheet telescopic seat, and a first step hole is formed in the inner side of the head of the magnetic steel sheet telescopic seat; an exhaust hole is formed in the inner wall below the first step hole; the outer wall of the lower part of the magnetic steel sheet telescopic seat is provided with an annular groove; the magnetic steel sheet telescopic seat penetrates through the mounting hole of the mounting plate B, and the tail of the magnetic steel sheet telescopic seat extends into a second step hole in the upper part of the first copper guide sleeve; an outer snap spring is arranged in the annular groove; a second flat gasket is arranged above the outer snap spring; a third spring is sleeved outside the magnetic steel sheet telescopic seat between the second flat gasket and the mounting plate B; the anti-collision telescopic rod slides in the magnetic steel sheet telescopic seat;
the magnetic steel sheet is fixedly arranged in the first step hole.
Preferably, the contact ejector rod is pushed and drives the contact core connecting rod to move towards the magnetic steel sheet telescopic seat;
the head of the contact core connecting rod drives the ball to enter a second taper hole at the tail of the magnetic steel sheet telescopic seat from the first taper hole; the ball is clamped between the second taper hole and the conical surface; the contact core connecting rod pushes the magnetic steel sheet telescopic seat to move towards the Hall magnetic induction travel switch.
Preferably, the telescopic rod joint is pushed and drives the anti-collision telescopic rod to move towards the magnetic steel sheet telescopic seat;
the ball is clamped between the first taper hole and the curved surface of the head of the contact core connecting rod, and the anti-collision telescopic rod drives the contact core connecting rod to slide in the magnetic steel sheet telescopic seat.
Preferably, the conical angle of the conical surface is 30 degrees; the conical angle of the first conical hole is 30 degrees; the conical angle of the second taper hole is 10 degrees; the diameter of the ball is 3 mm.
The invention has the following action principle:
when the bumper is used, the bumper is mainly realized by the relative positions of the positioning hole A, the positioning hole B and the bumper.
When the milling cutter with the milling taper handles and the milling spindles are aligned, the positioning hole A or the positioning hole B is located right below the telescopic assembly. Here, the positioning hole a is located right below the telescopic assembly as an example. The tool claw box rises under the action of the tool changing telescopic piston, a contact ejector rod and a telescopic rod joint of the telescopic assembly extend into the positioning sleeve hole, when the second stop ring contacts the upper end face of the positioning sleeve, the telescopic rod joint is pushed, and the telescopic rod joint drives the anti-collision telescopic rod to move towards the magnetic steel sheet telescopic seat; the ball is clamped between the first taper hole and the curved surface of the head of the contact core connecting rod, the anti-collision telescopic rod drives the contact core connecting rod to slide in the magnetic steel sheet telescopic seat, and the second spring is compressed at the moment. When the replacement is completed, the bumper is restored to the original shape under the action of the second spring.
When a problem occurs in the tool changing process, the milling taper handles of the milling cutter grabbed by the tool claw cannot be aligned with the milling main shafts, the positioning hole A or the positioning hole B cannot be located under the telescopic assembly, and the edge of the circular truncated cone is located under the telescopic assembly. The cutter claw box ascends under the action of the cutter changing telescopic piston, and the circular truncated cone is directly contacted with the contact ejector rod and pushes the contact ejector rod. The contact ejector rod drives the contact core connecting rod to move towards the magnetic steel sheet telescopic seat; the head of the contact core connecting rod drives the ball to enter a second taper hole at the tail of the magnetic steel sheet telescopic seat from the first taper hole; the ball is clamped between the second taper hole and the conical surface; the contact core connecting rod pushes the magnetic steel sheet telescopic seat to move towards the Hall magnetic induction travel switch. At the moment, the first spring and the third spring are all compressed, the distance between the magnetic steel sheet and the Hall magnetic induction travel switch is reduced, the Hall magnetic induction travel switch is triggered to be opened, the cutter changing mechanism is powered off and stopped, the cutter claw box is prevented from continuously rising, and collision is avoided.
The invention achieves the following beneficial effects:
the invention has the advantages of easy processing, installation and debugging, safe and reliable use and wide application range, can effectively prevent collision in the tool changing process of the numerical control milling machine, and realizes the function of safe tool changing and collision prevention of the tool claw.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a cross-sectional view taken along line D-D of FIG. 2;
FIG. 4 is a schematic view of a bumper of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;
FIG. 7 is an enlarged view at C of FIG. 5;
FIG. 8 is a perspective view of a bumper of the present invention;
FIG. 9 is a schematic view of a bumper of the present invention in a collision-identified state;
FIG. 10 is a cross-sectional view taken along line G-G of FIG. 9;
FIG. 11 is an enlarged view at H in FIG. 10;
FIG. 12 is a cross-sectional view taken along line I-I of FIG. 11;
FIG. 13 is a schematic view of a bumper of the present invention identifying safe tool change;
FIG. 14 is a cross-sectional view taken along line E-E of FIG. 13;
FIG. 15 is a cross-sectional view at F of FIG. 14;
FIG. 16 is a schematic view of a bumper of the present invention identifying safe tool change on the tool change mechanism;
FIG. 17 is a cross-sectional view taken along line J-J of FIG. 16;
FIG. 18 is an enlarged view at K of FIG. 17;
FIG. 19 is a bottom view of FIG. 16;
FIG. 20 is a cross-sectional view taken along line L-L of FIG. 19;
FIG. 21 is an enlarged view taken at N of FIG. 20;
fig. 22 is a partial cross-sectional view taken along line M-M of fig. 19.
In the figure: 1. an anti-collision induction support; 2. an induction support adjusting plate; 3. a contact ejector rod; 4. a contact core extension rod; 5. an anti-collision telescopic rod; 6. a telescopic rod joint; 7. a magnetic steel sheet telescopic seat; 8. a first copper guide sleeve; 9. a second copper guide sleeve; 10. a third copper guide sleeve; 11. a first spring; 12. a second spring; 13. a third spring; 14. a second flat washer; 15. an outer snap spring; 16. a first flat gasket; 17. a second taper hole; 18. a first stepped bore; 19. a ball bearing; 20. a magnetic steel sheet; 21. a Hall magnetic induction travel switch; 22. a bed body; 23. a tool changing rotating shaft; 24. a tool changing telescopic piston is arranged; 25. a knife claw box; 26. a cutter claw box positioning pin; 27. a circular truncated cone; 28. positioning holes; 29. mounting grooves; 30. a positioning sleeve; 31. positioning a trepan boring; 32. a bumper; 33. a cutter claw; 34. a telescoping assembly; 35. a Hall magnetic induction component; 36. milling taper shanks in a numerical mode; 37. counting and milling the main shaft; 38. a long slot hole; 39. mounting a plate A; 40. mounting a plate B; 41. mounting a plate C; 42. mounting a plate D; 43. a conical surface; 44. a curved surface; 45. a first taper hole; 46. a first retainer ring; 47. a step; 48. a second retainer ring; 49. a third retainer ring; 50. an exhaust hole; 51. an annular groove; 52. a second stepped bore.
Detailed Description
The invention will be further described with reference to the drawings and specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.
The hall magnetic induction travel switch is a commonly used hall magnetic induction travel switch, and the use and the control method of the hall magnetic induction travel switch are clearly known to a person skilled in the art according to the description of the invention.
Example 1
As shown in fig. 1 to 8, a collision-proof device for the direct detection of the contact probe of the numerical milling safety tool changing is provided, wherein the collision-proof device 32 is arranged on a tool changing mechanism; the tool changing mechanism comprises a lathe bed 22, a tool changing rotating shaft 23, a tool changing telescopic piston 24, a tool claw box 25 and a tool claw box positioning pin 26; the tool changing rotating shaft 23, the tool changing telescopic piston 24 and the tool claw box positioning pin 26 are all arranged on the lower end face of the lathe bed 22; the knife claw box 25 is provided with two knife claws 33 which are distributed in a centrosymmetric way; the upper end surface of the knife claw box 25 is provided with a circular truncated cone 27 and two positioning holes 28 intersected with the circular truncated cone 27. The centers of the two positioning holes are both positioned on the edge of the circular truncated cone 27, and the included angle between the two positioning holes is 180 degrees; the two positioning holes are internally provided with positioning sleeves 30; the positioning sleeve 30 penetrates through the knife claw box 25, and a positioning sleeve hole 31 is formed in the center of the positioning sleeve 30; the bumper 32 is mounted on the front end surface of the bed 22.
The anti-collision device 32 comprises an anti-collision induction support 1, a telescopic component 34 and a Hall magnetic induction component 35 which are arranged on the anti-collision induction support 1, and a Hall magnetic induction travel switch 21; the Hall magnetic induction assembly 35 is arranged at the upper part of the anti-collision induction support 1, and the telescopic assembly 34 is arranged at the lower part of the anti-collision induction support 1; the Hall magnetic induction travel switch 21 is arranged above the Hall magnetic induction assembly 35. The cutter claw 33 grabs a plurality of milling taper handles 36 of the milling cutter to be aligned with a plurality of milling spindles 37, and two positioning holes are respectively positioned under the cutter claw box positioning pin 26 and the telescopic assembly 34;
when the positioning hole 28 is arranged right below the telescopic assembly 34, the tool changing telescopic piston 24 drives the tool claw box 25 to move upwards, the lower end of the telescopic assembly 34 extends into the positioning sleeve hole 31, the upper end of the telescopic assembly 34 extends into the Hall magnetic induction assembly 35, the Hall magnetic induction travel switch 21 is closed, and the tool changing mechanism keeps normal operation;
when the round platform 27 is arranged right below the telescopic assembly 34, the tool changing telescopic piston 24 drives the tool claw box 25 to move upwards, the round platform 27 drives the telescopic assembly 34 to move upwards, the telescopic assembly 34 pushes the Hall magnetic induction assembly 35, the Hall magnetic induction travel switch 21 is opened, and the tool changing mechanism is powered off and stopped.
The front end surface of the anti-collision induction bracket 1 is provided with an installation plate, and the rear end surface is provided with an installation groove 29; the induction bracket adjusting plate 2 is fixedly arranged in the mounting groove 29; the induction bracket adjusting plate 2 is provided with a long slot hole 38; the anti-collision induction bracket 2 is arranged on the bed 22 through screws and slotted holes 38.
The mounting plate on the front end surface of the anti-collision induction support 1 sequentially comprises a mounting plate A39, a mounting plate B40, a mounting plate C41 and a mounting plate D42 from top to bottom; mounting holes are formed in the mounting plate A39, the mounting plate B40, the mounting plate C41 and the mounting plate D42; the Hall magnetic induction travel switch 21 is fixedly arranged on the lower end face of the mounting plate A39.
The telescopic assembly 34 comprises a contact ejector rod 3, a contact core extension rod 4, an anti-collision telescopic rod 5 and a telescopic rod joint 6.
The tail part of the contact core connecting rod 4 extends into the head part of the contact ejector rod 3 and is in threaded connection with the head part of the contact ejector rod 3; a first flat gasket 16 is clamped between the tail part of the contact core connecting rod 4 and the head part of the contact mandril 3; the head of the contact core connecting rod 4 is provided with a conical surface 43 and a curved surface 44 connected with the conical surface 43;
the anti-collision telescopic rod 5 is sleeved outside the contact core connecting rod 4, and the contact core connecting rod 4 slides in the anti-collision telescopic rod 5; the head of the anti-collision telescopic rod 5 is provided with a first taper hole 45, and the rod body of the anti-collision telescopic rod 5 is provided with a first retainer ring 46; three balls 19 are arranged between the curved surface 44 and the first taper hole 45;
a first spring 11 is sleeved outside the contact core connecting rod 4 between the tail part of the anti-collision telescopic rod 5 and the first flat gasket 16;
the first copper guide sleeve 8 and the second copper guide sleeve 9 are respectively assembled in the mounting hole of the mounting plate C41 and the mounting hole of the mounting plate D42 in an interference manner;
the anti-collision telescopic rod 5 penetrates through the mounting plate C41 and the mounting plate D42; first retainer ring 46 is positioned between mounting plate C41 and mounting plate D42; a third copper guide sleeve 10 and a second spring 12 are sequentially sleeved on the anti-collision telescopic rod 5 below the mounting plate D42;
the telescopic rod joint 6 is sleeved outside the joint of the contact core connecting rod 4 and the contact ejector rod 3; a step 47 is arranged in the telescopic rod joint 6, and a second retaining ring 48 is arranged outside the telescopic rod joint 6; the head of the telescopic rod joint 6 is in threaded connection with the tail of the anti-collision telescopic rod 5; the second spring 12 is positioned between the third copper guide sleeve 10 and the second retainer 48; the first flat gasket 16 is limited by the step 47;
the outer diameter of the telescopic rod joint 6 is matched with the positioning sleeve hole 31, and the outer diameter of the second retaining ring 48 is larger than the aperture of the positioning sleeve hole 31.
The Hall magnetic induction assembly 35 comprises a magnetic steel sheet telescopic seat 7, a magnetic steel sheet 20 and a third spring 13.
The tail of the magnetic steel sheet telescopic seat 7 is provided with a second taper hole 17, and the lower end surfaces of the second taper hole 17 and the magnetic steel sheet telescopic seat 7 are provided with excessive straight holes; a third retainer ring 49 is arranged on the outer side of the head of the magnetic steel sheet telescopic seat 7, and a first step hole 18 is formed in the inner side of the head of the magnetic steel sheet telescopic seat 7; an exhaust hole 50 is formed on the inner wall below the first stepped hole 18; the outer wall of the lower part of the magnetic steel sheet telescopic seat 7 is provided with an annular groove 51; the magnetic steel sheet telescopic seat 7 penetrates through a mounting hole of the mounting plate B40, and the tail of the magnetic steel sheet telescopic seat 7 extends into a second step hole 52 in the upper part of the first copper guide sleeve 8; an outer clamp spring 15 is arranged in the annular groove 51; a second flat gasket 14 is arranged above the outer clamp spring 15; a third spring 13 is sleeved outside the magnetic steel sheet telescopic seat 7 between the second flat washer 14 and the mounting plate B40; the anti-collision telescopic rod 5 slides in the magnetic steel sheet telescopic seat 7;
the magnetic steel sheet 20 is fixedly installed in the first stepped hole 18.
Wherein the conical angle of the conical surface is 30 degrees; the conical angle of the first conical hole is 30 degrees; the conical angle of the second taper hole is 10 degrees; the diameter of the ball is 3 mm.
In this embodiment, the magnetic induction distance of the hall magnetic induction travel switch in the on/off state is 20 mm.
The distance between the lower end surface of the contact mandril and the upper end surface of the positioning sleeve is 3 mm; the distance between the upper end face of the magnetic steel sheet and the lower end face of the Hall magnetic induction switch is 25mm, the distance exceeds the magnetic induction triggering distance, and the Hall magnetic induction switch is in a normally-closed power-on state (when the distance between the upper end face of the magnetic steel sheet and the lower end face of the Hall magnetic induction switch is less than or equal to 20mm, the Hall magnetic induction travel switch is triggered to be powered off).
As shown in fig. 9 to 12, when the contact mandril 3 is pushed, the contact mandril 3 drives the contact core connecting rod 4 to move towards the magnetic steel sheet telescopic seat 7;
the head of the contact core connecting rod 4 drives the ball 19 to enter the second taper hole 17 at the tail of the magnetic steel sheet telescopic seat 7 from the first taper hole 45; the ball 19 is clamped between the second taper hole 17 and the tapered surface 43; the contact core connecting rod 4 pushes the magnetic steel sheet telescopic seat 7 to move towards the Hall magnetic induction travel switch 21.
At the moment, the distance between the upper end face of the magnetic steel sheet and the lower end face of the Hall magnetic induction switch is 20mm, the Hall magnetic induction travel switch is triggered to be powered off, and the cutter mounting operation is stopped in time.
As shown in fig. 13 to 22, when the telescopic rod joint 6 is pushed, the telescopic rod joint 6 drives the anti-collision telescopic rod 5 to move towards the magnetic steel sheet telescopic seat 7;
the ball 19 is clamped between the first taper hole 45 and the curved surface 44 of the head of the contact core connecting rod 4, and the anti-collision telescopic rod 6 drives the contact core connecting rod 4 to slide in the magnetic steel sheet telescopic seat 7.
At the moment, the distance between the upper end face of the magnetic steel sheet and the lower end face of the Hall magnetic induction switch is 25mm, the Hall magnetic induction travel switch is normally closed and electrified, the identification is safe, and the tool changing is normally carried out.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (7)
1. A kind of digital milling safe tool changing penetration straight inspection bumper, the said bumper is mounted on tool changing organization; the tool changing mechanism comprises a lathe bed, a tool changing rotating shaft, a tool changing telescopic piston, a tool claw box and a tool claw box positioning pin; the tool changing rotating shaft, the tool changing telescopic piston and the tool claw box positioning pin are all arranged on the lower end face of the bed body; two cutter claws are arranged on the cutter claw box in a centrosymmetric manner; the upper end surface of the knife claw box is provided with a circular truncated cone and two positioning holes intersected with the circular truncated cone; the method is characterized in that: the centers of the two positioning holes are positioned on the edge of the circular truncated cone, and the included angle between the two positioning holes is 180 degrees; positioning sleeves are arranged in the two positioning holes; the positioning sleeve penetrates through the knife claw box, and a positioning sleeve hole is formed in the center of the positioning sleeve; the anti-collision device is arranged on the front end surface of the lathe bed;
the anti-collision device comprises an anti-collision induction support, a telescopic assembly and a Hall magnetic induction assembly which are arranged on the anti-collision induction support, and a Hall magnetic induction travel switch; the Hall magnetic induction assembly is arranged at the upper part of the anti-collision induction bracket, and the telescopic assembly is arranged at the lower part of the anti-collision induction bracket; the Hall magnetic induction travel switch is arranged above the Hall magnetic induction assembly;
a milling taper shank of the milling cutter grabbed by the cutter claw is aligned with a milling spindle, and two positioning holes are respectively positioned under the positioning pin of the cutter claw box and the telescopic assembly;
when a positioning hole is arranged right below the telescopic assembly, the tool changing telescopic piston drives the tool claw box to move upwards, the lower end of the telescopic assembly extends into the positioning sleeve hole, the upper end of the telescopic assembly extends into the Hall magnetic induction assembly, the Hall magnetic induction travel switch is closed, and the tool changing mechanism keeps normal operation;
when a circular table is arranged under the telescopic assembly, the tool changing telescopic piston drives the tool claw box to move upwards, the circular table drives the telescopic assembly to move upwards, the telescopic assembly pushes the Hall magnetic induction assembly, the Hall magnetic induction travel switch is opened, and the tool changing mechanism is powered off and stopped.
2. The numerical milling safety tool changing penetration straight inspection bumper according to claim 1, characterized in that: the front end surface of the anti-collision induction support is provided with an installation plate, and the rear end surface of the anti-collision induction support is provided with an installation groove; an induction bracket adjusting plate is fixedly arranged in the mounting groove; the induction bracket adjusting plate is provided with a long slot hole; the anti-collision induction support is arranged on the bed body through a screw and a long slotted hole.
3. The numerical milling safety tool changing penetration straight inspection bumper according to claim 2, characterized in that: the mounting plate on the front end face of the anti-collision induction support comprises a mounting plate A, a mounting plate B, a mounting plate C and a mounting plate D from top to bottom in sequence; mounting holes are formed in the mounting plate A, the mounting plate B, the mounting plate C and the mounting plate D; the Hall magnetic induction travel switch is fixedly installed on the lower end face of the installation plate A.
4. The collision-proof device for the direct detection of the numerical milling safe tool changing penetration according to claim 3, which is characterized in that: the telescopic component comprises a contact ejector rod, a contact core connecting rod, an anti-collision telescopic rod and a telescopic rod joint;
the tail part of the contact core connecting rod extends into the head part of the contact ejector rod and is in threaded connection with the head part of the contact ejector rod; a first flat gasket is clamped between the tail part of the contact core connecting rod and the head part of the contact ejector rod; the head of the connecting rod of the contact core is provided with a conical surface and a curved surface connected with the conical surface;
the anti-collision telescopic rod is sleeved outside the contact core connecting rod, and the contact core connecting rod slides in the anti-collision telescopic rod; the head of the anti-collision telescopic rod is provided with a first taper hole, and the rod body of the anti-collision telescopic rod is provided with a first check ring; three balls are arranged between the curved surface and the first taper hole;
a first spring is sleeved outside a contact core connecting rod between the tail of the anti-collision telescopic rod and the first flat gasket;
a first copper guide sleeve and a second copper guide sleeve are respectively assembled in the mounting hole of the mounting plate C and the mounting hole of the mounting plate D in an interference manner;
the anti-collision telescopic rod penetrates through the mounting plate C and the mounting plate D; the first check ring is positioned between the mounting plate C and the mounting plate D; a third copper guide sleeve and a second spring are sequentially sleeved on the anti-collision telescopic rod below the mounting plate D;
the telescopic rod joint is sleeved outside the joint of the contact core connecting rod and the contact ejector rod; a step is arranged in the telescopic rod joint, and a second retaining ring is arranged outside the telescopic rod joint; the head of the telescopic rod joint is in threaded connection with the tail of the anti-collision telescopic rod; the second spring is positioned between the third copper guide sleeve and the second retainer ring; the first flat gasket is limited by the step;
the outer diameter of the telescopic rod joint is matched with the positioning sleeve hole, and the outer diameter of the second check ring is larger than the aperture of the positioning sleeve hole.
5. The collision-proof device for the direct detection of the numerical milling safe tool changing penetration according to claim 4, which is characterized in that: the Hall magnetic induction assembly comprises a magnetic steel sheet telescopic seat, a magnetic steel sheet and a third spring;
the tail of the magnetic steel sheet telescopic seat is provided with a second taper hole, and the second taper hole and the lower end surface of the magnetic steel sheet telescopic seat are provided with transitional straight holes; a third check ring is arranged on the outer side of the head of the magnetic steel sheet telescopic seat, and a first step hole is formed in the inner side of the head of the magnetic steel sheet telescopic seat; an exhaust hole is formed in the inner wall below the first step hole; the outer wall of the lower part of the magnetic steel sheet telescopic seat is provided with an annular groove; the magnetic steel sheet telescopic seat penetrates through the mounting hole of the mounting plate B, and the tail of the magnetic steel sheet telescopic seat extends into a second step hole in the upper part of the first copper guide sleeve; an outer snap spring is arranged in the annular groove; a second flat gasket is arranged above the outer snap spring; a third spring is sleeved outside the magnetic steel sheet telescopic seat between the second flat gasket and the mounting plate B; the anti-collision telescopic rod slides in the magnetic steel sheet telescopic seat;
the magnetic steel sheet is fixedly arranged in the first step hole.
6. The collision-proof device for the direct detection of the numerical milling safe tool changing penetration according to claim 5, which is characterized in that: pushing the contact ejector rod, and driving the contact core connecting rod to move towards the magnetic steel sheet telescopic seat by the contact ejector rod;
the head of the contact core connecting rod drives the ball to enter a second taper hole at the tail of the magnetic steel sheet telescopic seat from the first taper hole; the ball is clamped between the second taper hole and the conical surface; the contact core connecting rod pushes the magnetic steel sheet telescopic seat to move towards the Hall magnetic induction travel switch.
7. The collision-proof device for the direct detection of the numerical milling safe tool changing penetration according to claim 6, which is characterized in that: pushing the telescopic rod joint, wherein the telescopic rod joint drives the anti-collision telescopic rod to move towards the magnetic steel sheet telescopic seat;
the ball is clamped between the first taper hole and the curved surface of the head of the contact core connecting rod, and the anti-collision telescopic rod drives the contact core connecting rod to slide in the magnetic steel sheet telescopic seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010921734.9A CN112008132B (en) | 2020-09-04 | 2020-09-04 | Collision-proof device is directly examined in safe tool changing sounding of digit milling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010921734.9A CN112008132B (en) | 2020-09-04 | 2020-09-04 | Collision-proof device is directly examined in safe tool changing sounding of digit milling |
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| CN112008132A true CN112008132A (en) | 2020-12-01 |
| CN112008132B CN112008132B (en) | 2022-02-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102378611B1 (en) * | 2021-12-08 | 2022-03-25 | (주)한국에프에이산업 | Automatic tool changer |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201405223Y (en) * | 2009-04-23 | 2010-02-17 | 汉川机床集团有限公司 | Anti-collision device for main shaft pull rod end of numerically controlled machine tool |
| CN202240694U (en) * | 2011-09-29 | 2012-05-30 | 深圳市捷甬达实业有限公司 | Bamboo hat type tool magazine with anti-collision device |
| CN102699503A (en) * | 2012-06-21 | 2012-10-03 | 无锡华联精工机械有限公司 | Initial positioning and anti-collision device of plasma cutter |
| CN202667901U (en) * | 2012-06-21 | 2013-01-16 | 无锡华联精工机械有限公司 | Initial positioning and anticollision device for plasma cutting machine |
| CN202701896U (en) * | 2012-05-24 | 2013-01-30 | 亿铨机械(嘉兴)有限公司 | Anticollision gearing for numerically controlled machining center |
| CN202861533U (en) * | 2012-10-18 | 2013-04-10 | 缙云县高新机械制造有限公司 | Anti-collision mechanism for up-pull type internal broaching machine |
| CN104191310A (en) * | 2014-08-11 | 2014-12-10 | 宁波海天精工股份有限公司 | Numerical control machining center provided with anti-collision tool replacement device and usage method thereof |
| DE102014100268A1 (en) * | 2014-01-10 | 2015-07-16 | Ying Sun | Tool change arm arrangement for a tool magazine for exchanging tools |
| CN207521785U (en) * | 2017-12-11 | 2018-06-22 | 青岛昀旭纺织机械有限公司 | A kind of anticollision knife system of CNC milling machine |
| US20190126417A1 (en) * | 2017-10-27 | 2019-05-02 | Moroff & Baierl Gmbh | Device for exchanging part of tool and hollow milling tool |
| CN210099058U (en) * | 2019-05-22 | 2020-02-21 | 上海百劲机械有限公司 | A anticollision sword device for milling machine cutting head |
| CN111347182A (en) * | 2020-04-08 | 2020-06-30 | 深圳市大德激光技术有限公司 | Swing head collision avoidance device |
-
2020
- 2020-09-04 CN CN202010921734.9A patent/CN112008132B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201405223Y (en) * | 2009-04-23 | 2010-02-17 | 汉川机床集团有限公司 | Anti-collision device for main shaft pull rod end of numerically controlled machine tool |
| CN202240694U (en) * | 2011-09-29 | 2012-05-30 | 深圳市捷甬达实业有限公司 | Bamboo hat type tool magazine with anti-collision device |
| CN202701896U (en) * | 2012-05-24 | 2013-01-30 | 亿铨机械(嘉兴)有限公司 | Anticollision gearing for numerically controlled machining center |
| CN102699503A (en) * | 2012-06-21 | 2012-10-03 | 无锡华联精工机械有限公司 | Initial positioning and anti-collision device of plasma cutter |
| CN202667901U (en) * | 2012-06-21 | 2013-01-16 | 无锡华联精工机械有限公司 | Initial positioning and anticollision device for plasma cutting machine |
| CN202861533U (en) * | 2012-10-18 | 2013-04-10 | 缙云县高新机械制造有限公司 | Anti-collision mechanism for up-pull type internal broaching machine |
| DE102014100268A1 (en) * | 2014-01-10 | 2015-07-16 | Ying Sun | Tool change arm arrangement for a tool magazine for exchanging tools |
| CN104191310A (en) * | 2014-08-11 | 2014-12-10 | 宁波海天精工股份有限公司 | Numerical control machining center provided with anti-collision tool replacement device and usage method thereof |
| US20190126417A1 (en) * | 2017-10-27 | 2019-05-02 | Moroff & Baierl Gmbh | Device for exchanging part of tool and hollow milling tool |
| CN207521785U (en) * | 2017-12-11 | 2018-06-22 | 青岛昀旭纺织机械有限公司 | A kind of anticollision knife system of CNC milling machine |
| CN210099058U (en) * | 2019-05-22 | 2020-02-21 | 上海百劲机械有限公司 | A anticollision sword device for milling machine cutting head |
| CN111347182A (en) * | 2020-04-08 | 2020-06-30 | 深圳市大德激光技术有限公司 | Swing head collision avoidance device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102378611B1 (en) * | 2021-12-08 | 2022-03-25 | (주)한국에프에이산업 | Automatic tool changer |
| TWI830506B (en) * | 2021-12-08 | 2024-01-21 | 南韓商韓國Ｆａ產業股份有限公司 | Automatic tool changer |
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| Publication number | Publication date |
|---|---|
| CN112008132B (en) | 2022-02-15 |
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