CN115781341B - Steel rail welding seam finish milling numerical control machine tool - Google Patents
Steel rail welding seam finish milling numerical control machine tool Download PDFInfo
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- CN115781341B CN115781341B CN202211539332.8A CN202211539332A CN115781341B CN 115781341 B CN115781341 B CN 115781341B CN 202211539332 A CN202211539332 A CN 202211539332A CN 115781341 B CN115781341 B CN 115781341B
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Abstract
The invention relates to the technical field of steel rail welding processing, in particular to a steel rail welding seam finish milling numerical control machine tool which comprises a workbench, a control mechanism, a feeding roller set and a finish milling mechanism, wherein two rotatable clamps are fixedly arranged at the top of the workbench, and each rotatable clamp comprises four side clamps for abutting against a steel rail around; and the rotary driving assembly is fixedly arranged at the top of the workbench and used for driving one of the rotatable clamps to rotate so as to drive the steel rail to be processed to rotate. According to the invention, the position of the steel rail to be processed is adjusted through the rotatable clamp, so that the standard milling cutter can also process the welding seams of all positions of the steel rail, and the cost of the milling cutter is reduced; the steel rail to be processed is precisely positioned through the rotatable clamp, so that milling precision of milling is improved; the side clamping blocks are adjusted by the adjusting bolts to clamp steel rails with different sizes, and the steel rails with different sizes can be processed only by adjusting milling numerical control programming.
Description
Technical Field
The invention relates to the technical field of steel rail welding processing, in particular to a steel rail welding seam finish milling numerical control machine tool.
Background
The rail welding base of the railway in China welds hundred-meter rails produced by a steel mill into 500-meter long rails, and then the rails are transported to a line for paving. The long steel rail welded at the welding rail base has a welding line for connecting the steel rail, and the welding line can be qualified and delivered to a line for use after finishing treatment.
The patent document with the publication number of CN109056434A in China discloses a steel rail welding seam milling device, which comprises a milling machine part, a manipulator polishing part and an electric control part, wherein the electric control part is used for controlling and coordinating the milling machine part and the manipulator polishing part to perform milling operation on the steel rail welding seam; the milling machine component comprises: milling power head components, portal frame components, milling clamping components and travelling trolleys; the manipulator polishing part includes: the polishing device comprises a manipulator body, a polishing head assembly, a polishing clamping assembly and a polishing platform; the milling power head assembly includes: the left rail web milling moving cutter head and the right rail web milling moving cutter head are arranged on the front side surface of the portal frame assembly, and the rail top milling moving cutter head and the rail bottom milling moving cutter head are arranged on the rear side surface of the portal frame assembly, and the four milling power heads are respectively provided with corresponding forming milling cutter heads.
The milling cutter head of the patent is suitable for the surface of the steel rail, is a special milling cutter, cannot use a standardized milling cutter to achieve the milling purpose, has high milling cutter replacement cost, and can not be suitable for processing different steel rails because different specifications of steel rails are required to be provided with different specifications of milling cutter heads.
Disclosure of Invention
Based on the above, it is necessary to provide a steel rail welding seam finish milling numerical control machine tool aiming at the problems in the prior art.
In order to solve the problems in the prior art, the invention adopts the following technical scheme:
a steel rail welding seam finish milling digit control machine tool, includes workstation, control mechanism, feed roll group, finish milling mechanism, still includes:
two rotatable clamps fixedly arranged at the top of the workbench and used for clamping two ends of a steel rail to be processed, wherein each rotatable clamp comprises four side clamps for supporting the steel rail around;
and the rotary driving assembly is fixedly arranged at the top of the workbench and used for driving one of the rotatable clamps to rotate so as to drive the steel rail to be processed to rotate.
Further, the rotary drive assembly includes:
the L-shaped motor support is fixedly arranged at the top of the workbench;
the servo motor is fixedly arranged on the side wall of the L-shaped motor support in a horizontal state, and the output end of the servo motor outputs towards the finish milling mechanism along the length direction of the steel rail;
the driving gear is fixedly arranged on the output end of the servo motor in a vertical state.
Further, the rotatable clamp further comprises:
the first limiting support is fixedly arranged at the top of the workbench in a vertical state, and a limiting support ring arranged in a vertical state is formed at the top of the first limiting support;
one end of the rotary mounting cylinder is coaxially and movably arranged in the limit supporting ring, one end face of the rotary mounting cylinder is abutted against the side face of the limit supporting ring, a driven gear which is arranged in a vertical state is formed on the peripheral side of one end of the rotary mounting cylinder, which is close to the first limit support, the driven gear is meshed with the driving gear, and four side clamps are movably arranged on the side wall of the rotary mounting cylinder;
the second limiting support is fixedly arranged at the top of the workbench in a vertical state, a fixed supporting ring which is arranged in a vertical state is formed at the top of the second limiting support, and the fixed supporting ring is coaxially and movably sleeved at the other end of the rotary mounting cylinder;
the annular wedge block is coaxially and movably arranged at one end of the rotary mounting cylinder, which is far away from the first limiting support, an annular flange is formed at one end of the annular wedge block, which is far away from the first limiting support, and a plurality of side pressure wedge blocks which are axially arranged along the annular wedge block are formed on the inner wall of the annular wedge block;
the clamping driving assembly is fixedly arranged at the top of the workbench and drives the annular wedge block to slide in the rotary mounting cylinder through abutting the annular flange.
Further, the clamping drive assembly includes:
the cylinder support is fixedly arranged at the top of the workbench in a vertical state;
the driving cylinder is fixedly arranged at the top of the cylinder support in a horizontal state, and the output end of the driving cylinder horizontally faces the second limiting support along the radial direction of the fixed supporting ring;
the driving wedge block is horizontally and fixedly arranged at the output end of the driving cylinder, one side of the driving wedge block, which is close to the fixed support ring, is formed with a driving wedge surface which can be abutted against the annular flange and push the annular wedge block to slide, and the fixed support ring is formed with a first avoiding hole for the driving wedge surface to pass through.
Further, each side jig includes:
the side sliding assembly is movably arranged on the side wall of the rotary mounting cylinder along the radial direction of the rotary mounting cylinder;
the side clamping assembly is fixedly arranged on one side, far away from the side wall of the rotary mounting cylinder, of the side sliding assembly along the radial direction of the rotary mounting cylinder.
Further, the side sliding assembly includes:
the two first guide bolts are movably arranged on the side wall of the rotary mounting cylinder along the horizontal direction, first guide holes for the corresponding first guide bolts to pass through are formed in the side wall of the rotary mounting cylinder, and the output ends of the two first guide bolts pass through the corresponding first guide holes and extend to the center of the rotary mounting cylinder;
the L-shaped guide sliding seat is fixedly arranged at the output ends of the two first guide bolts, a limiting ring which is arranged in a vertical state is formed on the inner wall of the rotary mounting cylinder, the other side wall of the L-shaped guide sliding seat is in contact with one side of the limiting ring, which is far away from the first limiting support, of the limiting ring, one side of each side pressure wedge block, which is close to the L-shaped guide sliding seat, is provided with a side pressure wedge surface, and the L-shaped guide sliding seat is provided with a sliding wedge surface corresponding to the side pressure wedge surface;
the two first gaskets are movably sleeved on the corresponding first guide bolts, and one side of each first gasket is abutted against the bolt head of the corresponding first guide bolt;
the two first reset springs are movably sleeved on the corresponding first guide screw rods, one end of each first reset spring is abutted against the corresponding first gasket, and the other end of each first reset spring is abutted against the outer wall of the rotary mounting cylinder.
Further, the side clamping assembly includes:
the two second guide bolts are movably arranged on the side wall of the L-shaped guide sliding seat along the horizontal direction, second guide holes for the corresponding second guide bolts to pass through are formed in the side wall of the L-shaped guide sliding seat, and the output ends of the two second guide bolts pass through the corresponding second guide holes and extend to the center of the rotary mounting cylinder;
the side clamping blocks are fixedly arranged on the output ends of the two second guide bolts in a vertical state;
the adjusting bolt is fixedly screwed on the L-shaped guide sliding seat in a horizontal state, the output end of the adjusting bolt passes through the L-shaped guide sliding seat to be in contact with the side clamping block, and a second avoidance hole for the second guide bolt to pass through is formed in the side wall of the rotary mounting cylinder;
the two second gaskets are movably sleeved on the corresponding second guide bolts, and one side of each second gasket is abutted against the bolt head of the corresponding second guide bolt;
the two second reset springs are movably sleeved on the corresponding second guide screw rods, one end of each second reset spring is abutted against the corresponding second gasket, and the other end of each second reset spring is abutted against the corresponding L-shaped guide sliding seat.
Further, one side shaping that is close to first spacing support on the annular flange has a plurality of guide bars, and one side shaping that rotatory installation section of thick bamboo is located fixed stay ring has a plurality of and guide bar complex third guiding hole, all coaxial activity in every third guiding hole is provided with a third reset spring, and the one end of third reset spring is inconsistent with third guiding hole inner wall, and the other end is inconsistent with the guide bar that corresponds, and the shaping has four third dodges the hole that supply corresponding second guide bolt and adjusting bolt passed on the lateral wall of annular voussoir.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the steel rail welding seam finish milling numerical control machine tool adjusts the position of the steel rail to be processed through the rotatable clamp, so that a standard milling cutter can also process welding seams at all positions of the steel rail, and the cost of the milling cutter is reduced;
secondly, the steel rail welding seam finish milling numerical control machine tool accurately positions the steel rail to be processed through the rotatable clamp, so that milling precision of milling is improved;
thirdly, the steel rail welding seam finish milling numerical control machine tool provided by the invention can clamp steel rails with different sizes and specifications by adjusting the side clamping blocks through the adjusting bolts, and the steel rails with different sizes and specifications can be processed only by adjusting milling numerical control programming.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic perspective view of a rotatable clamp of the present invention;
FIG. 5 is an exploded view of the rotatable clamp of the present invention;
FIG. 6 is a schematic perspective view of a side clamp of the present invention;
FIG. 7 is an isometric view of the annular wedge of the present invention;
FIG. 8 is an isometric view of a rotary mounting barrel of the present invention;
fig. 9 is an exploded view of a side clamp of the present invention.
The reference numerals in the figures are: 1. a work table; 2. a control mechanism; 3. a finish milling mechanism; 4. a feed roller set; 5. a rotatable clamp; 6. a rotary drive assembly; 7. the first limiting support is provided with a first limiting support; 8. a limit support ring; 9. the second limiting support is used for limiting the second limiting support; 10. fixing the support ring; 11. a first avoidance hole; 12. a rotary mounting cylinder; 13. a driven gear; 14. a limiting ring; 15. a first guide hole; 16. a second avoidance hole; 17. a third guide hole; 18. a side clamp; 19. a side sliding assembly; 20. a first guide bolt; 21. an L-shaped guide sliding seat; 22. sliding wedge surfaces; 23. a second guide hole; 24. a first gasket; 25. a first return spring; 26. a side clamping assembly; 27. a second guide bolt; 28. a side clamping block; 29. an adjusting bolt; 30. a second gasket; 31. a second return spring; 32. an annular wedge; 33. an annular flange; 34. a guide rod; 35. a third return spring; 36. a third avoidance hole; 37. a side pressure wedge block; 38. a side pressure wedge surface; 39. a clamping drive assembly; 40. a cylinder support; 41. a driving cylinder; 42. a drive wedge; 43. driving the wedge surface; 44. an L-shaped motor support; 45. a servo motor; 46. and a drive gear.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1 to 9, a steel rail welding seam finish milling numerical control machine tool comprises a workbench 1, a control mechanism 2, a feeding roller set 4 and a finish milling mechanism 3, and further comprises: two rotatable clamps 5 fixedly arranged at the top of the workbench 1 and used for clamping two ends of a steel rail to be processed, wherein each rotatable clamp 5 comprises four side clamps 18 for abutting the steel rail around; the rotary driving assembly 6 is fixedly arranged at the top of the workbench 1 and used for driving one of the rotatable clamps 5 to rotate so as to drive the steel rail to be processed to rotate.
The control mechanism 2 can control the work of the feed roller set 4, the finish milling mechanism 3, the rotatable clamps 5 and the rotary driving assembly 6, the welded steel rail to be processed is conveyed to a working area through the feed roller set 4, the two ends of the steel rail to be processed are clamped through the two rotatable clamps 5, the steel rail is separated from the top of the feed roller set 4, the surface of the steel rail to be processed is milled through the finish milling mechanism 3, in the milling process, one rotatable clamp 5 is driven to rotate through the rotary driving assembly 6, and the milled position of the steel rail to be processed is adjusted, so that the finish milling mechanism 3 can accurately process the periphery of the steel rail to be processed.
Further, the rotary drive assembly 6 includes: the L-shaped motor support 44 is fixedly arranged at the top of the workbench 1; the servo motor 45 is fixedly arranged on the side wall of the L-shaped motor support 44 in a horizontal state, and the output end of the servo motor 45 outputs towards the finish milling mechanism 3 along the length direction of the steel rail; the driving gear 46 is fixedly arranged on the output end of the servo motor 45 in a vertical state.
The control mechanism 2 controls the servo motor 45 to drive the driving gear 46 to rotate, and the driving gear 46 drives the corresponding rotatable clamp 5 to rotate.
Further, the rotatable fixture 5 further includes: the first limiting support 7 is fixedly arranged at the top of the workbench 1 in a vertical state, and a limiting support ring 8 arranged in a vertical state is formed at the top of the first limiting support 7; one end of the rotary mounting cylinder 12 is coaxially and movably arranged in the limit support ring 8, one end face of the rotary mounting cylinder 12 is abutted against the side face of the limit support ring 8, a driven gear 13 which is arranged in a vertical state is formed on the periphery side of one end, close to the first limit support 7, of the rotary mounting cylinder 12, the driven gear 13 is meshed with a driving gear 46, and four side clamps 18 are movably arranged on the side wall of the rotary mounting cylinder 12; the second limiting support 9 is fixedly arranged at the top of the workbench 1 in a vertical state, a fixed support ring 10 which is arranged in a vertical state is formed at the top of the second limiting support 9, and the fixed support ring 10 is coaxially and movably sleeved at the other end of the rotary mounting cylinder 12; the annular wedge block 32 is coaxially and movably arranged at one end of the rotary mounting cylinder 12 far away from the first limiting support 7, an annular flange 33 is formed at one end of the annular wedge block 32 far away from the first limiting support 7, and a plurality of side pressure wedge blocks 37 axially arranged along the annular wedge block 32 are formed on the inner wall of the annular wedge block 32; the clamping driving assembly 39 is fixedly arranged at the top of the workbench 1, and the clamping driving assembly 39 drives the annular wedge block 32 to slide in the rotary mounting barrel 12 through abutting the annular flange 33.
The rotary mounting cylinder 12 is fixed through the first limiting support 7 and the second limiting support 9, the rotary mounting cylinder 12 can rotate in the limiting support ring 8 and the fixed support ring 10 and drive the four side clamps 18 to rotate synchronously, the annular wedge block 32 is pushed to slide in the rotary mounting cylinder 12 through the clamping driving assembly 39, the annular wedge block 32 pushes the four side clamps 18 to tightly prop up the steel rail to be processed from the periphery of the steel rail to be processed, the driven gear 13 on the rotary mounting cylinder 12 is meshed with the driving gear 46, and the rotary mounting cylinder 12 can rotate along with the rotation of the driving gear 46.
Further, the clamping drive assembly 39 includes: the cylinder support 40 is fixedly arranged at the top of the workbench 1 in a vertical state; the driving cylinder 41 is fixedly arranged at the top of the cylinder support 40 in a horizontal state, and the output end of the driving cylinder 41 horizontally outputs towards the second limit support 9 along the radial direction of the fixed support ring 10; the driving wedge block 42 is fixedly arranged on the output end of the driving cylinder 41 in a horizontal state, a driving wedge surface 43 which can be abutted against the annular flange 33 and push the annular wedge block 32 to slide is formed on one side of the driving wedge block 42 close to the fixed support ring 10, and a first avoidance hole 11 through which the driving wedge surface 43 passes is formed on the fixed support ring 10.
The control mechanism 2 controls the driving cylinder 41 to push the driving wedge block 42 to move towards the rotary mounting cylinder 12, the annular flange 33 is in contact with the driving wedge surface 43, the annular wedge block 32 slides into the rotary mounting cylinder 12 along the axial direction of the rotary mounting cylinder 12 under the action of the driving wedge surface 43, and the four side clamps 18 are pushed to tightly prop up and support the steel rail to be processed from the periphery of the steel rail to be processed.
Further, each side clamp 18 includes: a side sliding component 19 movably arranged on the side wall of the rotary mounting cylinder 12 along the radial direction of the rotary mounting cylinder 12; the side clamping assembly 26 is fixedly disposed on a side of the side sliding assembly 19 away from the side wall of the rotary mounting cylinder 12 in the radial direction of the rotary mounting cylinder 12.
When the annular wedge block 32 slides towards the inside of the rotary mounting cylinder 12, the side pressing wedge block 37 pushes the side pressing assembly 19 to slide towards the axis of the rotary mounting cylinder 12 along the radial direction of the rotary mounting cylinder 12 and drives the side clamping assembly 26 fixedly arranged on the side sliding assembly 19 to move until the side clamping assembly 26 abuts against the side wall of the steel rail to be processed.
Further, the side slide assembly 19 includes: the two first guide bolts 20 are movably arranged on the side wall of the rotary mounting cylinder 12 along the horizontal direction, first guide holes 15 for the corresponding first guide bolts 20 to pass through are formed on the side wall of the rotary mounting cylinder 12, and the output ends of the two first guide bolts 20 pass through the corresponding first guide holes 15 and extend to the center of the rotary mounting cylinder 12; the L-shaped guide sliding seat 21 is fixedly arranged at the output ends of the two first guide bolts 20, a limiting ring 14 which is arranged in a vertical state is formed on the inner wall of the rotary mounting cylinder 12, the other side wall of the L-shaped guide sliding seat 21 is in contact with one side of the limiting ring 14, which is far away from the first limiting support 7, each side pressure wedge 37 is formed with a side pressure wedge surface 38 on one side, which is close to the L-shaped guide sliding seat 21, and a sliding wedge surface 22 corresponding to the side pressure wedge surface 38 is formed on the L-shaped guide sliding seat 21; the two first gaskets 24 are movably sleeved on the corresponding first guide bolts 20, and one side of each first gasket 24 is abutted against the bolt head of the corresponding first guide bolt 20; the two first return springs 25 are movably sleeved on the corresponding first guide screw rods, one end of each first return spring 25 is abutted against the corresponding first gasket 24, and the other end of each first return spring 25 is abutted against the outer wall of the rotary mounting cylinder 12.
The L-shaped guide sliding seat 21 is fixedly arranged on the two first guide bolts 20, the first guide bolts 20 are movably arranged in the first guide holes 15, one side of the L-shaped guide sliding seat 21 is abutted against the limiting ring 14, a sliding wedge surface 22 matched with the side pressing wedge surface 38 is formed at one end of the L-shaped guide sliding seat, when the annular wedge block 32 slides towards the side clamp 18, the side pressing wedge surface 38 gradually applies pressure to the sliding wedge surface 22, the L-shaped guide sliding seat 21 slides along the radial direction of the rotary mounting cylinder 12 under the action of the limiting ring 14 and the first guide bolts 20, the two first guide bolts 20 move towards the axis of the rotary mounting cylinder 12, the first gasket 24 presses the first return spring 25, the first return spring 25 is compressed under stress, and when the side pressing wedge block 37 returns to the position, the first return spring 25 releases pressure to drive the L-shaped guide sliding seat 21 to the original position through the first guide bolts 20.
Further, the side clamping assembly 26 includes: the two second guide bolts 27 are movably arranged on the side wall of the L-shaped guide sliding seat 21 along the horizontal direction, second guide holes 23 for the corresponding second guide bolts 27 to pass through are formed in the side wall of the L-shaped guide sliding seat 21, and the output ends of the two second guide bolts 27 pass through the corresponding second guide holes 23 and extend to the center of the rotary mounting cylinder 12; the side clamping blocks 28 are fixedly arranged on the output ends of the two second guide bolts 27 in a vertical state; the adjusting bolt 29 is fixedly screwed on the L-shaped guide sliding seat 21 in a horizontal state, the output end of the adjusting bolt 29 passes through the L-shaped guide sliding seat 21 to be in contact with the side clamping block 28, and a second avoidance hole 16 for the second guide bolt 27 and the adjusting bolt 29 to pass through is formed in the side wall of the rotary mounting cylinder 12; the two second gaskets 30 are movably sleeved on the corresponding second guide bolts 27, and one side of each second gasket 30 is abutted against the bolt head of the corresponding second guide bolt 27; the two second return springs 31 are movably sleeved on the corresponding second guide screw rods, one end of each second return spring 31 is abutted against the corresponding second gasket 30, and the other end of each second return spring 31 is abutted against the corresponding L-shaped guide sliding seat 21.
Two second guide bolts 27 activity sets up in second guiding hole 23, and side clamp splice 28 is fixed to be set up on two second guide bolts 27, and the activity is provided with second reset spring 31 on the second guide bolt 27, and adjusting bolt 29 is located on the L type direction slide 21 soon, and adjusting bolt 29's output is inconsistent with side clamp splice 28, adjusts the interval between side clamp splice 28 and the L type direction slide 21 through rotatory adjusting bolt 29 in order to adapt to the different faces of different sizes rail to guarantee that annular wedge 32 removes when stopping, the side splint can support tight rail lateral wall.
Further, a plurality of guide rods 34 are formed on one side, close to the first limiting support 7, of the annular flange 33, a plurality of third guide holes 17 matched with the guide rods 34 are formed on one side, located in the fixed support ring 10, of the rotary mounting cylinder 12, a third reset spring 35 is coaxially and movably arranged in each third guide hole 17, one end of each third reset spring 35 is in contact with the inner wall of each third guide hole 17, the other end of each third reset spring is in contact with the corresponding guide rod 34, and four third avoiding holes 36 for the corresponding second guide bolts 27 and the corresponding adjusting bolts 29 to penetrate are formed on the side wall of the annular wedge 32.
The control mechanism 2 can control the feeding roller set 4, the finish milling mechanism 3, the rotatable clamp 5 and the rotary driving assembly 6 to work, before working, firstly, the steel rail to be machined is conveyed to a working area, the annular wedge 32 is driven by the driving cylinder 41 to push out all the four side clamps 18, the spacing between the side clamping blocks 28 and the L-shaped guide sliding seat 21 is adjusted by the rotary adjusting bolts 29 so as to adapt to the size of the steel rail to be machined, the side clamping blocks 28 abut against the side wall of the steel rail to be machined, the control mechanism 2 controls the driving cylinder 41 to push the driving wedge 42 to move towards the rotary mounting cylinder 12, the annular flange 33 abuts against the driving wedge surface 43, the steel rail to be machined according to the condition of the steel rail to be machined at the moment writes a numerical control program of the steel rail to be machined, the debugging is finished, during the finish debugging is finished, the finish working is finished, the driving cylinder 41 is controlled to push the driving wedge 42, the annular wedge 32 is driven by the feeding roller set 4 to move towards the working area, the inner side of the rotary mounting cylinder 12 under the action of the driving wedge surface 43, the L-shaped guide sliding seat 38 gradually applies pressure to the sliding surface 22 along the axial direction of the rotary mounting cylinder 12, the side clamping wedge surface 38 under the action of the driving wedge surface 43, the action of the limiting ring 14 and the side clamping wedge surface 20 presses against the sliding wedge surface 22, the sliding mechanism 20 along the radial direction of the first guide cylinder 20, and the side clamping wedge surface 20 abuts against the side surface of the rotary mounting cylinder 2, and the steel rail to control the side clamping mechanism 2, and the side clamping mechanism is controlled to radially and the side clamping wedge 45 is pressed against the steel rail to move along the side surface, and the side clamping mechanism is subjected to control the side surface and the side surface.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
1. The utility model provides a rail welding seam finish milling digit control machine tool, includes workstation (1), control mechanism (2), feed roll group (4), finish milling mechanism (3), its characterized in that still includes:
two rotatable clamps (5) are fixedly arranged at the top of the workbench (1) and used for clamping two ends of a steel rail to be processed, and each rotatable clamp (5) comprises four side clamps (18) for abutting the steel rail around;
the rotary driving assembly (6) is fixedly arranged at the top of the workbench (1) and used for driving one of the rotatable clamps (5) to rotate so as to drive the steel rail to be processed to rotate;
the rotary drive assembly (6) comprises:
the L-shaped motor support (44) is fixedly arranged at the top of the workbench (1);
the servo motor (45) is fixedly arranged on the side wall of the L-shaped motor support (44) in a horizontal state, and the output end of the servo motor (45) outputs towards the finish milling mechanism (3) along the length direction of the steel rail;
the driving gear (46) is fixedly arranged on the output end of the servo motor (45) in a vertical state;
the rotatable clamp (5) further comprises:
the first limiting support (7) is fixedly arranged at the top of the workbench (1) in a vertical state, and a limiting support ring (8) arranged in a vertical state is formed at the top of the first limiting support (7);
one end of the rotary mounting cylinder (12) is coaxially and movably arranged in the limit support ring (8), one end face of the rotary mounting cylinder (12) is abutted against the side face of the limit support ring (8), a driven gear (13) which is arranged in a vertical state is formed on the peripheral side of one end, close to the first limit support (7), of the rotary mounting cylinder (12), the driven gear (13) is meshed with the driving gear (46), and four side clamps (18) are movably arranged on the side wall of the rotary mounting cylinder (12);
the second limiting support (9) is fixedly arranged at the top of the workbench (1) in a vertical state, a fixed support ring (10) which is arranged in a vertical state is formed at the top of the second limiting support (9), and the fixed support ring (10) is coaxially and movably sleeved at the other end of the rotary mounting cylinder (12);
the annular wedge block (32) is coaxially and movably arranged at one end of the rotary mounting cylinder (12) far away from the first limiting support (7), an annular flange (33) is formed at one end of the annular wedge block (32) far away from the first limiting support (7), and a plurality of side pressure wedge blocks (37) axially arranged along the annular wedge block (32) are formed on the inner wall of the annular wedge block (32);
the clamping driving assembly (39) is fixedly arranged at the top of the workbench (1), and the clamping driving assembly (39) drives the annular wedge block (32) to slide in the rotary mounting cylinder (12) through the abutting annular flange (33).
2. A rail weld finish milling numerically controlled machine as in claim 1, wherein the clamping drive assembly (39) comprises:
the cylinder support (40) is fixedly arranged at the top of the workbench (1) in a vertical state;
the driving cylinder (41) is fixedly arranged at the top of the cylinder support (40) in a horizontal state, and the output end of the driving cylinder (41) horizontally outputs towards the second limit support (9) along the radial direction of the fixed support ring (10);
the driving wedge block (42) is horizontally and fixedly arranged at the output end of the driving cylinder (41), one side, close to the fixed supporting ring (10), of the driving wedge block (42) is provided with a driving wedge surface (43) which can be abutted against the annular flange (33) and push the annular wedge block (32) to slide, and the fixed supporting ring (10) is provided with a first avoidance hole (11) for the driving wedge surface (43) to pass through.
3. A rail weld finish milling numerically controlled machine as in claim 2, wherein each side clamp (18) comprises:
the side sliding assembly (19) is movably arranged on the side wall of the rotary mounting cylinder (12) along the radial direction of the rotary mounting cylinder (12);
the side clamping assembly (26) is fixedly arranged on one side of the side sliding assembly (19) away from the side wall of the rotary mounting cylinder (12) along the radial direction of the rotary mounting cylinder (12).
4. A rail weld finish milling numerically controlled machine as in claim 3, wherein the side slip assembly (19) comprises:
the two first guide bolts (20) are movably arranged on the side wall of the rotary mounting cylinder (12) along the horizontal direction, first guide holes (15) for the corresponding first guide bolts (20) to pass through are formed on the side wall of the rotary mounting cylinder (12), and the output ends of the two first guide bolts (20) pass through the corresponding first guide holes (15) and extend to the center of the rotary mounting cylinder (12);
the L-shaped guide sliding seat (21) is fixedly arranged at the output ends of the two first guide bolts (20), a limiting ring (14) which is arranged in a vertical state is formed on the inner wall of the rotary mounting cylinder (12), the other side wall of the L-shaped guide sliding seat (21) is in contact with one side of the limiting ring (14) far away from the first limiting support (7), one side of each side pressure wedge block (37) close to the L-shaped guide sliding seat (21) is provided with a side pressure wedge surface (38), and the L-shaped guide sliding seat (21) is provided with a sliding wedge surface (22) corresponding to the side pressure wedge surface (38);
the two first gaskets (24) are movably sleeved on the corresponding first guide bolts (20), and one side of each first gasket (24) is abutted against the bolt head of the corresponding first guide bolt (20);
the two first reset springs (25) are movably sleeved on the corresponding first guide screw rods, one end of each first reset spring (25) is abutted against the corresponding first gasket (24), and the other end of each first reset spring (25) is abutted against the outer wall of the rotary mounting cylinder (12).
5. A rail weld finish milling numerically controlled machine as in claim 4, wherein the side clamping assembly (26) comprises:
the two second guide bolts (27) are movably arranged on the side wall of the L-shaped guide sliding seat (21) along the horizontal direction, second guide holes (23) for the corresponding second guide bolts (27) to pass through are formed in the side wall of the L-shaped guide sliding seat (21), and the output ends of the two second guide bolts (27) pass through the corresponding second guide holes (23) and extend to the center of the rotary mounting cylinder (12);
the side clamping blocks (28) are fixedly arranged on the output ends of the two second guide bolts (27) in a vertical state;
the adjusting bolt (29) is fixedly screwed on the L-shaped guide sliding seat (21) in a horizontal state, the output end of the adjusting bolt (29) passes through the L-shaped guide sliding seat (21) to be in contact with the side clamping block (28), and a second avoidance hole (16) for the second guide bolt (27) to pass through with the adjusting bolt (29) is formed in the side wall of the rotary mounting cylinder (12);
the two second gaskets (30) are movably sleeved on the corresponding second guide bolts (27), and one side of each second gasket (30) is abutted against the bolt head of the corresponding second guide bolt (27);
the two second return springs (31) are movably sleeved on the corresponding second guide screw rods, one end of each second return spring (31) is abutted against the corresponding second gasket (30), and the other end of each second return spring (31) is abutted against the corresponding L-shaped guide sliding seat (21).
6. The numerical control steel rail welding seam finish milling machine tool according to claim 5, wherein a plurality of guide rods (34) are formed on one side, close to the first limiting support (7), of the annular flange (33), a plurality of third guide holes (17) matched with the guide rods (34) are formed on one side, located in the fixed support ring (10), of the rotary mounting cylinder (12), a third reset spring (35) is coaxially and movably arranged in each third guide hole (17), one end of the third reset spring (35) is in contact with the inner wall of the third guide hole (17), the other end of the third reset spring is in contact with the corresponding guide rod (34), and four third avoidance holes (36) for the corresponding second guide bolts (27) and the adjusting bolts (29) to penetrate are formed on the side wall of the annular wedge (32).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211539332.8A CN115781341B (en) | 2022-12-02 | 2022-12-02 | Steel rail welding seam finish milling numerical control machine tool |
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| CN202211539332.8A CN115781341B (en) | 2022-12-02 | 2022-12-02 | Steel rail welding seam finish milling numerical control machine tool |
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| CN115781341B true CN115781341B (en) | 2023-06-27 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0771764B2 (en) * | 1985-10-24 | 1995-08-02 | 大同特殊鋼株式会社 | Crossing rail processing machine |
| CN103521817B (en) * | 2013-10-31 | 2015-11-18 | 无锡华联精工机械有限公司 | Rail pinches formula three facing cut and cuts special purpose machine tool |
| CN104308235B (en) * | 2014-09-26 | 2016-09-28 | 武汉利德测控技术股份有限公司 | Steel rail welding line tunneling boring milling device |
| CN106041182B (en) * | 2016-06-24 | 2018-01-09 | 深圳市高能精密机械有限公司 | Steel rail welding line numerical finish-milling equipment and finish-milling method |
| CN110802685B (en) * | 2019-11-21 | 2021-07-13 | 石家庄铁道大学 | Bar milling fixing device |
| CN216730736U (en) * | 2022-01-24 | 2022-06-14 | 深圳市明为兴科技有限公司 | High-precision integrated CNC four-axis jig |
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