CN113681241B - Device for manufacturing low-floor axle bridge and manufacturing process thereof - Google Patents

Device for manufacturing low-floor axle bridge and manufacturing process thereof Download PDF

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Publication number
CN113681241B
CN113681241B CN202110994548.2A CN202110994548A CN113681241B CN 113681241 B CN113681241 B CN 113681241B CN 202110994548 A CN202110994548 A CN 202110994548A CN 113681241 B CN113681241 B CN 113681241B
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processing
axle
portal frame
positioning
stand
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CN113681241A (en
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李晓将
刘兴兴
蒲令
赵岩
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Wuxi Ruisheng Machinery Technology Co ltd
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Wuxi Ruisheng Machinery Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P23/00Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
    • B23P23/02Machine tools for performing different machining operations
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Abstract

The invention discloses a device for manufacturing a low-floor axle bridge, which comprises a processing bedplate, a processing assembly and a positioning assembly, wherein the processing assembly comprises a portal frame and a cutter supporting frame, the portal frame is slidably arranged on the upper surface of the processing bedplate, the cutter supporting frame is slidably arranged in the portal frame, an axle bridge positioning plate is fixedly arranged above the processing bedplate, the positioning assembly comprises a vertical positioning rod and a horizontal positioning block, the vertical positioning rod and the horizontal positioning block are both slidably connected with the axle bridge positioning plate, a supporting plate is fixedly arranged at the top of two adjacent groups of elastic telescopic supporting legs, rotary cylinders are fixedly arranged on one side of the supporting plate, a supporting disc is fixedly arranged between the two groups of rotary cylinders, the stability of the axle bridge to be processed is ensured, the problems that accurate weight cannot be balanced, the jumping quality of two axle ends is unstable, and the smoothness and the cylindricity are easy to be out of tolerance are solved, and manufacturing the high-precision and high-performance axle bridge with the precision meeting the technical requirements of the low-floor tramcar.

Description

Device for manufacturing low-floor axle bridge and manufacturing process thereof
Technical Field
The invention relates to the technical field of tramcar accessory manufacturing, in particular to a device for manufacturing a low-floor axle bridge and a manufacturing process thereof.
Background
With the development of economy and the improvement of social living standard, the number of private cars is more and more at present, so that a plurality of cities become famous 'blocked cities', and the urban environment is greatly damaged. The low-floor tramcar takes clean energy electric energy as power, is clean and pollution-free, and is a short-distance transportation tool which is very worthy of being pushed for some cities because the passenger capacity of the low-floor tramcar is several times of that of public transportation. The axle bridge is a key part of the low-floor tramcar and mainly bears the part in the use process. The product has high requirements on materials and performance, the excircles at two ends of the product are assembled with bearings for use, the size requirement is strict, and the smoothness requirement is MRR Ra0.8. The existing manufacturing method is finished by machining through a numerical control lathe and a common grinding machine. Because this product structure is special-shaped, and the part belongs to slender axles class, and machining efficiency is low during turning and grinding, unable accurate counter weight, and the quality of beating is unstable for the diaxon end, and smooth finish and cylindricity size are easy out of tolerance. The size of the excircle of the two shaft ends affects the matching of the shaft and the bearing, and the service life of the bearing is affected. The cylindricity of excircle and the run-out of both ends influence tram's steady operation. Disclosure of Invention
The invention aims to provide a device for manufacturing a low-floor axle bridge and a manufacturing process thereof, which can manufacture a high-precision and high-performance axle bridge with the precision meeting the technical requirements of low-floor tramcars by controlling the manufacturing process so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a device for manufacturing a low-floor axle bridge, which comprises a processing bedplate, a processing assembly and a positioning assembly, wherein the processing assembly comprises a portal frame and a cutter supporting frame, the portal frame is slidably arranged on the upper surface of the processing bedplate, the cutter supporting frame is slidably arranged in the portal frame, an axle bridge positioning plate is fixedly arranged above the processing bedplate, the positioning assembly comprises a vertical positioning rod and a horizontal positioning block, and the vertical positioning rod and the horizontal positioning block are both slidably connected with the axle bridge positioning plate;
waist-shaped chutes are symmetrically formed in two sides of the processing bedplate, the bottom end of the vertical positioning rod is fixedly connected to a threaded shaft, the threaded shaft is slidably mounted in the waist-shaped chutes, and the threaded shaft penetrates through and extends to the lower part of the axle bridge positioning plate and is in threaded connection with a locking nut; the processing table plate is characterized in that four groups of horizontal positioning blocks are arranged, two adjacent groups of horizontal positioning blocks are arranged on two sides of the vertical positioning rod respectively, sliding grooves are formed in two sides of the axle bridge positioning plate, the horizontal positioning blocks are slidably mounted in the sliding grooves, fixing blocks are symmetrically arranged on two sides of the sliding grooves in the bottom surface of the processing table plate respectively, adjusting rods are connected to the fixing blocks in a threaded mode, and one ends of the adjusting rods are rotatably mounted in the horizontal positioning blocks.
The utility model discloses a cutter support frame, including the elastic stretching landing leg of four groups, four groups elastic stretching landing leg two bisymmetries respectively set up, and is adjacent two sets of elastic stretching landing leg top fixed mounting has the backup pad, the equal fixed mounting in backup pad one side has revolving cylinder, and fixed mounting has the support disc between two sets of revolving cylinder, support disc both sides fixed mounting respectively has milling cutter and drill bit, the rod end of milling cutter and drill bit all runs through in supporting the disc and fixedly connected with motor.
The upper surface of the processing bedplate is symmetrically provided with two groups of first electric sliding tables, the upper surfaces of the two groups of first electric sliding tables are fixedly provided with supporting plates, and the portal frame is fixedly arranged on the upper surfaces of the supporting plates.
The gantry crane comprises a support plate, a gantry frame, linear guide rails, two sets of lifting motors, a gantry frame and two sets of support plates, wherein the linear guide rails are fixedly connected between one side of each support plate and the inner wall of the gantry frame, the two sets of lifting motors are symmetrically arranged at the top of the gantry frame, output shaft ends of the two sets of lifting motors penetrate through the gantry frame and extend into the gantry frame, and output shaft ends of the two sets of lifting motors are fixedly connected with the tops of the two sets of support plates respectively.
The elastic telescopic supporting legs comprise first stand columns and second stand columns, one ends of the first stand columns are slidably mounted in the second stand columns, one ends of the first stand columns are far away from the second stand columns and are fixedly connected to the bottom surface of the supporting plate, springs are fixedly connected between the first stand columns and the second stand columns, and the second stand columns are slidably mounted on the upper surface of the supporting plate through second electric sliding tables.
The motors are respectively arranged on the upper side and the lower side of the supporting disc, and the milling cutter and the drill bit are respectively and fixedly arranged at the output shaft ends of the two groups of motors.
The processing table plate is provided with a vertical positioning rod, a vertical positioning rod is arranged on the vertical positioning rod, a limiting mechanism is arranged on one side, close to the vertical positioning rod, of the processing table plate respectively, the limiting mechanism comprises a fixing plate and a limiting rod, the limiting rod is connected in the fixing plate in a threaded mode, a rubber ejector block is fixedly installed at one end of the limiting rod, and a locking nut is connected to the surface of the limiting rod in a threaded mode.
The invention also provides a manufacturing process of the low-floor axle bridge, which comprises the following steps:
s1, feed inspection: receiving a forged piece, visually inspecting the appearance of the part, and marking out to detect machining allowance and part income after judging that the cast is qualified;
s2, moving into the first process machining area: roughly milling two end shaft heads and the width direction (keeping 10mm of single-side allowance), detecting by a vernier caliper, then deburring, moving into an inspection area after visual inspection is qualified, and judging that the machining is qualified after self-inspection and routing inspection;
s3, moving into a second working procedure processing area: roughly milling two mounting surfaces (the allowance of a single side is 10 mm), detecting by using a vernier caliper, then deburring, moving into an inspection area after visual inspection is qualified, and judging that the machining is qualified after self-inspection and routing inspection;
s4, moving into a third-step processing area: roughly milling shaft heads at two ends and the width direction (the single-side allowance is kept for 2 mm), then carrying out deburring treatment, moving into an inspection area after visual inspection is qualified, and judging that the machining is qualified after self-inspection and routing inspection;
s5, moving into a fourth process area: roughly milling two-side mounting surfaces (the allowance of a single side is kept by 2 mm), then carrying out deburring treatment, moving into an inspection area after visual inspection is qualified, and judging that the machining is qualified after self-inspection and routing inspection;
s6, moving into a fifth-step processing area: roughly and finely milling a rod body and a U-shaped groove, then carrying out deburring treatment, moving the rod body and the U-shaped groove into an inspection area after visual inspection is qualified, and judging that the rod body and the U-shaped groove are qualified after self-inspection and routing inspection;
s7, moving into a heat treatment mode, carrying out tempering treatment, visually inspecting the appearance of the part, judging whether machining is qualified or not, and marking to detect machining allowance;
s8, moving into a sixth working procedure processing area, finely processing two mounting surfaces and a right-angle surface, then performing deburring treatment, moving into an inspection area after visual inspection is qualified, and judging that the processing is qualified after self-inspection, routing inspection and three-coordinate processing;
s9, moving into a seventh procedure processing area, performing finish machining on the rod body surface and the hole, then performing deburring treatment, moving into an inspection area after visual inspection is qualified, and judging that the machining is qualified after self-inspection, routing inspection and three-coordinate processing;
and S10, moving into the eighth procedure machining area, performing finish machining on two shaft ends and two side faces, then performing deburring treatment, moving into the inspection area after visual inspection is qualified, judging that machining is qualified after finished product inspection and three-coordinate machining, and completing all machining processes of the shaft bridge. .
In summary, due to the adoption of the technology, the invention has the beneficial effects that:
according to the invention, the processing assembly and the positioning assembly are respectively arranged on the processing bedplate, and the vertical positioning rod and the horizontal positioning block are utilized to position and clamp the axle shaft to be processed, so that the stability of the axle shaft to be processed is ensured, and the problems that accurate balance weight cannot be realized, the jumping quality of two axle ends is unstable, and the smoothness and cylindricity size are easy to be out of tolerance are solved;
the special-shaped axle bridge is U-shaped, so that the weight of a part is large, the weight of the part is approximately 75 percent (275 Kg) of the total weight, the length of the part is long, the diameter ratio of the slender part of the rod body is about 1:20 (2 m of the total length), the part is easy to deform in the transportation and turnover process, the coaxiality requirement of circular shafts at two ends of an outer part is too high, and once the part deforms, the part cannot be met.
The invention provides a brand-new manufacturing method of a low-floor tramcar axle bridge, which adds a semi-finishing process and an aging heat treatment process in the processing process by adjusting the processing technology and processing equipment (scribing-center hole drilling-rough turning-rough milling-heat treatment-semi-finishing turning-semi-finishing milling-aging heat treatment-finish milling-semi-finishing boring-finish milling-finish boring milling-three-coordinate detection), thereby solving the problem of deformation after parts are processed to finished products and manufacturing the high-precision and high-performance axle bridge with the precision meeting the technical requirements of the low-floor tramcar.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic top view of the axle positioning plate according to the present invention;
FIG. 4 is a side view, cross-sectional structural view of the axle positioning plate of the present invention;
fig. 5 is a schematic sectional structure view of the elastic telescopic leg of the present invention.
In the figure: 1. processing the bedplate; 101. a first electric sliding table; 102. a support plate; 103. a waist-shaped chute; 104. a shaft bridge positioning plate; 105. a chute; 106. a fixed block; 107. adjusting a rod; 2. processing the assembly; 3. a positioning assembly; 4. a vertical positioning rod; 401. a threaded shaft; 5. horizontally positioning a block; 6. a gantry; 7. a tool support frame; 701. an elastic telescopic leg; 7011. a first upright post; 7012. a second upright post; 7013. a second electric sliding table; 702. a support plate; 703. a rotating cylinder; 704. a support disc; 705. a milling cutter; 706. a drill bit; 8. a linear guide rail; 9. a lifting motor; 10. a limiting mechanism; 1001. a fixing plate; 1002. a limiting rod; 1003. and (7) a rubber top block.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, the invention provides a device for manufacturing a low-floor axle bridge, which comprises a processing bedplate 1, a processing assembly 2 and a positioning assembly 3, wherein an axle bridge positioning plate 104 is fixedly installed above the processing bedplate 1, the positioning assembly 3 comprises a vertical positioning rod 4 and a horizontal positioning block 5, the vertical positioning rod 4 and the horizontal positioning block 5 are both in sliding connection with the axle bridge positioning plate 104, and during processing, an axle bridge to be processed is fixedly clamped on the upper surface of the axle bridge positioning plate 104, so that a part is static, a cutter and a cutter holder rotate, and the balance weight of the cutter is finished, thereby solving the eccentric problem in the processing process.
The processing assembly 2 comprises a portal frame 6 and a cutter supporting frame 7, the portal frame 6 is slidably mounted on the upper surface of a processing platen 1, two groups of first electric sliding tables 101 are symmetrically mounted on the upper surface of the processing platen 1, supporting plates 102 are fixedly mounted on the upper surfaces of the two groups of first electric sliding tables 101, the portal frame 6 is fixedly mounted on the upper surfaces of the supporting plates 102, the cutter supporting frame 7 is slidably mounted in the portal frame 6, a linear guide rail 8 is fixedly connected between one side of each supporting plate 702 and the inner wall of the portal frame 6, two groups of lifting motors 9 are symmetrically mounted at the top of the portal frame 6, output shaft ends of the two groups of lifting motors 9 penetrate through the portal frame 6 and extend into the portal frame 6, output shaft ends of the two groups of lifting motors 9 are fixedly connected with the tops of the two groups of supporting plates 702 respectively, and the lifting motors 9 are started to press down the two groups of supporting plates 702 before a cutter is opened, the elastic telescopic supporting legs 701 are compressed, so that the supporting disc 704 between the two groups of supporting plates 702 moves to a hole position to be processed of the axle bridge and a groove position to wait for a processing position.
The cutter supporting frame 7 comprises four groups of elastic telescopic supporting legs 701, the four groups of elastic telescopic supporting legs 701 are respectively arranged in a pairwise symmetrical manner, supporting plates 702 are fixedly arranged at the tops of the two adjacent groups of elastic telescopic supporting legs 701, the elastically telescopic legs 701 comprise a first upright 7011 and a second upright 7012, one end of the first upright column 7011 is slidably mounted in the second upright column 7012, one end of the first upright column 7011, which is far away from the second upright column 7012, is fixedly connected to the bottom surface of the supporting plate 702, a spring is fixedly connected between the first upright 7011 and the second upright 7012, the second upright 7012 is slidably mounted on the upper surface of the supporting plate 102 through a second electric sliding table 7013, and a compression spring is fixedly connected to one end of the first upright 7011, which is positioned inside the second upright 7012, so that the compression spring not only can ensure the conventional supporting function, but also can compress when the lifting motor 9 applies force, and ensure that the cutter moves to a position required by processing; the deep hole processing device is characterized in that rotary cylinders 703 are fixedly mounted on one sides of the supporting plates 702, supporting disks 704 are fixedly mounted between the two groups of rotary cylinders 703, milling cutters 705 and drill bits 706 are fixedly mounted on two sides of the supporting disks 704 respectively, rod ends of the milling cutters 705 and the drill bits 706 penetrate through the supporting disks 704 and are fixedly connected with motors respectively, the motors are mounted on the upper side and the lower side of the supporting disks 704 respectively, the milling cutters 705 and the drill bits 706 are fixedly mounted on output shaft ends of the two groups of motors respectively, the drill bits 706 for deep hole processing at the shaft ends are special gun drills, cutting parameters and tool life are confirmed through continuous process tests in the processing process, so that the deep processing quality is stabilized to meet requirements of drawings and customers, the rotary cylinders 703 are utilized to drive the supporting disks 704 to rotate by 90 degrees or 180 degrees (or reversely rotate by 90 degrees or 180 degrees), and the processing range of the drill bits 706 in the horizontal direction and the vertical direction is realized, is suitable for axle bridges with special shapes.
Waist type spout 103 has been seted up to axle bridge locating plate 104 bilateral symmetry, 4 bottom fixed connections of vertical locating lever are in threaded spindle 401, threaded spindle 401 slidable mounting is in waist type spout 103, threaded spindle 401 runs through and extends to axle bridge locating plate 104 below and threaded connection has lock nut, processing platen 1 is close to vertical locating lever 4 one side respectively and all is provided with stop gear 10, stop gear 10 includes fixed plate 1001 and gag lever post 1002, gag lever post 1002 threaded connection is in fixed plate 1001, gag lever post 1002 one end fixed mounting has rubber kicking block 1003, also threaded connection has lock nut on the gag lever post 1002 surface.
The four groups of horizontal positioning blocks 5 are arranged, two adjacent groups of horizontal positioning blocks 5 are respectively arranged on two sides of the vertical positioning rod 4, sliding grooves 105 are formed in two sides of the processing bedplate 1, the horizontal positioning blocks 5 are slidably mounted in the sliding grooves 105, fixing blocks 106 are symmetrically arranged on two sides of the sliding grooves 105 on the bottom surface of the processing bedplate 1, adjusting rods 107 are connected to the fixing blocks 106 in a threaded mode, and one ends of the adjusting rods 107 are rotatably mounted in the horizontal positioning blocks 5.
The invention also provides a manufacturing process of the low-floor axle bridge, which comprises the following steps:
s1, feed inspection: receiving the forged piece, visually inspecting the appearance of the part, marking out and detecting the machining allowance and the part income after judging that the casting is qualified;
s2, moving into a first working procedure processing area: roughly milling two end shaft heads and the width direction (keeping 10mm of single-side allowance), detecting by a vernier caliper, then deburring, moving into an inspection area after visual inspection is qualified, and judging that the machining is qualified after self-inspection and routing inspection;
s3, moving into a second working procedure processing area: roughly milling two mounting surfaces (the allowance of a single side is 10 mm), detecting by using a vernier caliper, then deburring, moving into an inspection area after visual inspection is qualified, and judging that the machining is qualified after self-inspection and routing inspection;
s4, moving into a third-step processing area: roughly milling shaft heads at two ends and the width direction (the single-side allowance is kept for 2 mm), then carrying out deburring treatment, moving into an inspection area after visual inspection is qualified, and judging that the machining is qualified after self-inspection and routing inspection;
s5, moving into a fourth process area: roughly milling two-side mounting surfaces (the allowance of a single side is kept by 2 mm), then carrying out deburring treatment, moving into an inspection area after visual inspection is qualified, and judging that the machining is qualified after self-inspection and routing inspection;
s6, moving into a fifth-step processing area: roughly and finely milling a rod body and a U-shaped groove, then carrying out deburring treatment, moving the rod body and the U-shaped groove into an inspection area after visual inspection is qualified, and judging that the rod body and the U-shaped groove are qualified after self-inspection and routing inspection;
s7, moving into a heat treatment chamber, tempering, visually inspecting the appearance of the part, judging whether the machining is qualified or not, and scribing to detect the machining allowance;
s8, moving into a sixth procedure machining area, performing finish machining on two mounting surfaces and a right-angle surface, then performing deburring treatment, moving into an inspection area after visual inspection is qualified, and judging that machining is qualified after self-inspection, routing inspection and three-coordinate processing;
s9, moving into a seventh procedure processing area, performing finish machining on the rod body surface and the hole, then performing deburring treatment, moving into an inspection area after visual inspection is qualified, and judging that the machining is qualified after self-inspection, routing inspection and three-coordinate processing;
and S10, moving into the eighth procedure machining area, performing finish machining on two shaft ends and two side faces, then performing deburring treatment, moving into the inspection area after visual inspection is qualified, judging that machining is qualified after finished product inspection and three-coordinate machining, and completing all machining processes of the shaft bridge.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims (6)

1. The utility model provides a low-floor axle is made and is used device, includes processing platen (1), processing subassembly (2) and locating component (3), its characterized in that: the machining assembly (2) comprises a portal frame (6) and a cutter supporting frame (7), the portal frame (6) is slidably mounted on the upper surface of the machining bedplate (1), the cutter supporting frame (7) is slidably mounted in the portal frame (6), an axle positioning plate (104) is fixedly mounted above the machining bedplate (1), the positioning assembly (3) comprises a vertical positioning rod (4) and a horizontal positioning block (5), and the vertical positioning rod (4) and the horizontal positioning block (5) are both slidably connected with the axle positioning plate (104);
waist-shaped sliding grooves (103) are symmetrically formed in two sides of the axle bridge positioning plate (104), the bottom end of the vertical positioning rod (4) is fixedly connected to a threaded shaft (401), the threaded shaft (401) is slidably mounted in the waist-shaped sliding grooves (103), and the threaded shaft (401) penetrates through the axle bridge positioning plate (104) and extends to the lower portion of the axle bridge positioning plate (104) and is in threaded connection with a locking nut;
four groups of horizontal positioning blocks (5) are arranged, two adjacent groups of horizontal positioning blocks (5) are respectively arranged on two sides of the vertical positioning rod (4), sliding grooves (105) are respectively formed in two sides of the processing bedplate (1), the horizontal positioning blocks (5) are slidably arranged in the sliding grooves (105), fixed blocks (106) are symmetrically arranged on two sides, located on the sliding grooves (105), of the bottom surface of the processing bedplate (1), adjusting rods (107) are connected to the fixed blocks (106) in an internal thread mode, and one ends of the adjusting rods (107) are rotatably arranged in the horizontal positioning blocks (5);
cutter support frame (7) are including four elastic telescopic landing legs (701), four groups elastic telescopic landing leg (701) two bisymmetry settings respectively, and adjacent two sets of elastic telescopic landing leg (701) top fixed mounting has backup pad (702), the equal fixed mounting in backup pad (702) one side has revolving cylinder (703), and fixed mounting has support disc (704) between two sets of revolving cylinder (703), support disc (704) both sides fixed mounting respectively has milling cutter (705) and drill bit (706), the rod end of milling cutter (705) and drill bit (706) all runs through in support disc (704) and fixedly connected with motor.
2. The apparatus for manufacturing a low floor axle according to claim 1, wherein: the processing platen (1) upper surface symmetry installs two sets of electronic slip tables (101), and is two sets of electronic slip table (101) upper surface fixed mounting has layer board (102), portal frame (6) fixed mounting is in layer board (102) upper surface.
3. The apparatus for manufacturing a low floor axle according to claim 1, wherein: fixedly connected with linear guide (8) between backup pad (702) one side and portal frame (6) inner wall, two sets of elevator motor (9) are installed to portal frame (6) top symmetry, and are two sets of the output axle head of elevator motor (9) runs through in portal frame (6) and extend to portal frame (6), and is two sets of the output axle head of elevator motor (9) respectively with two sets of backup pad (702) top fixed connection.
4. The apparatus for manufacturing a low floor axle according to claim 2, wherein: elastic telescopic leg (701) includes first stand (7011) and second stand (7012), first stand (7011) one end slidable mounting is in second stand (7012), second stand (7012) one end fixed connection is kept away from in first stand (7011) bottom surface in backup pad (702), fixedly connected with spring between first stand (7011) and second stand (7012), second stand (7012) passes through electronic slip table (7013) slidable mounting of second in layer board (102) upper surface.
5. The apparatus for manufacturing a low floor axle according to claim 1, wherein: the motors are respectively arranged on the upper side and the lower side of the supporting disc (704), and the milling cutter (705) and the drill bit (706) are respectively and fixedly arranged at the output shaft ends of the two groups of motors.
6. The apparatus for manufacturing a low floor axle according to claim 1, wherein: the processing table plate (1) is close to one side of the vertical positioning rod (4) and is provided with a limiting mechanism (10), the limiting mechanism (10) comprises a fixing plate (1001) and a limiting rod (1002), the limiting rod (1002) is in threaded connection with the fixing plate (1001), one end of the limiting rod (1002) is fixedly provided with a rubber ejector block (1003), and the surface of the limiting rod (1002) is also in threaded connection with a locking nut.
CN202110994548.2A 2021-08-27 2021-08-27 Device for manufacturing low-floor axle bridge and manufacturing process thereof Active CN113681241B (en)

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