CN113941862A - B-type vehicle frame machining device and machining process thereof - Google Patents

B-type vehicle frame machining device and machining process thereof Download PDF

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Publication number
CN113941862A
CN113941862A CN202111359941.0A CN202111359941A CN113941862A CN 113941862 A CN113941862 A CN 113941862A CN 202111359941 A CN202111359941 A CN 202111359941A CN 113941862 A CN113941862 A CN 113941862A
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CN
China
Prior art keywords
tool
processing
spring seat
framework
side beam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111359941.0A
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Chinese (zh)
Inventor
刘海萍
马娜
王瑞馥
于立强
金鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Changchun Railway Vehicles Co Ltd
Original Assignee
CRRC Changchun Railway Vehicles Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CRRC Changchun Railway Vehicles Co Ltd filed Critical CRRC Changchun Railway Vehicles Co Ltd
Priority to CN202111359941.0A priority Critical patent/CN113941862A/en
Publication of CN113941862A publication Critical patent/CN113941862A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
    • B23P23/02—Machine tools for performing different machining operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • 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
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means

Abstract

The invention discloses a B-type vehicle frame machining device and a machining process, which comprise a one-step machining tool and a two-step machining tool; the one-step processing tool is integrated with a plurality of groups of one-step tool clamping components, and the bogie frame is reversely placed on the one-step processing tool and is clamped and positioned by the one-step tool clamping components; the two-step processing tool is integrated with a plurality of groups of two-step tool supporting components, and the bogie frame is placed on the two-step processing tool in the forward direction and is supported and positioned through the two-step tool supporting components. The device adopts the one-step processing tool and the two-step processing tool to clamp and process the framework step by step, ensures the accuracy of the clamping and positioning of the framework processing, and ensures the accuracy of the clamping by taking the axle box spring seat as a positioning reference. On one hand, the state of the framework is consistent with that of the bogie during assembly, the processing feasibility is guaranteed, the fixation in three directions is realized by one-time clamping, the repeated adjustment of the tool is avoided, and the two-step processing efficiency of the framework is improved.

Description

B-type vehicle frame machining device and machining process thereof
Technical Field
The invention relates to the technical field of B-type vehicle frame machining, in particular to a device suitable for machining a novel B-type vehicle frame and a machining process based on the device.
Background
The production and processing of the new B-type vehicle frame require high precision, and many parts on the bogie frame have high processing precision requirements, such as the body of the bogie frame and the axle box spring seats formed on the bogie frame.
In the prior art, a B-type vehicle bogie frame needs to be positioned, supported and clamped by using a tool before being machined at each position, but the tool in the prior art is generally a simple positioning tool, and the bogie frame is generally clamped and fixed on the existing tool at one time, so that the machining precision requirements of a plurality of parts of the bogie frame cannot be met.
In view of the above technical problems, there is a need for developing a device suitable for processing a new type B vehicle frame and a processing technique based on the device.
Disclosure of Invention
The invention aims to provide a device which meets the requirements of different positions of a framework on machining precision by two-step clamping, improves the machining efficiency, is convenient and reliable and is suitable for machining a novel B-type vehicle framework and a machining process based on the device.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention relates to a B-type vehicle frame processing device, which comprises:
one-step processing of the tool; and
secondly, processing a tool;
the one-step processing tool is integrated with a plurality of groups of one-step tool clamping components, and the bogie frame is reversely placed on the one-step processing tool and is clamped and positioned by the one-step tool clamping components;
the two-step machining tool is integrated with a plurality of groups of two-step tool supporting components, and the bogie frame is placed on the two-step machining tool in the forward direction and supported and positioned through the two-step tool supporting components.
Further, a bogie frame suitable for use in the apparatus comprises:
the two cross beams are arranged at intervals; and
a side member connected to both ends of the cross member;
the cross beam extends along the horizontal direction;
the side member includes:
the side beam intermediate body is positioned in the middle of the beam and connected with the cross beam; and
side beam end portions formed at both ends of the side beam intermediate body;
the end parts of the side beams and the middle body of the side beams are connected into a whole through side beam transition bodies which extend obliquely;
and the end parts of the side beams and the side beam transition bodies are provided with axle box spring seats.
Further, the further processing frock includes:
one-step tooling bottom plate;
the four groups of one-step tool clamping components are arranged on the one-step tool bottom plate; and
the one-step tool supporting piece is positioned in the middle of the one-step tool bottom plate;
the one-step tool clamping assembly is matched with the end part of the side beam of the bogie frame and clamps and positions the bogie frame at the end part of the side beam;
the one-step tool support supports the upper surface of the cross beam.
Further, frock clamping subassembly includes:
the side beam end supports are arranged at intervals along the extending direction of the side beam ends and support the upper surfaces of the side beam ends;
one-step tooling pressing plate assembly; and
one-step tooling side support assembly;
the one-step tool pressing plate assembly is provided with a pressing plate connecting rod connected with the one-step tool bottom plate and a pressing plate arranged at the upper end of the pressing plate connecting rod;
the pressing plate of the one-step tool pressing plate assembly is pressed and held on the lower surface of the end part of the side beam through the pressing plate connecting rod;
the one-step tool side supporting assembly is provided with a side supporting piece connecting rod connected with the one-step tool bottom plate and a side supporting piece arranged on the upper portion of the side supporting piece connecting rod, and the side supporting piece extends towards the side face of the end portion of the side beam and is abutted against the side face of the end portion of the side beam.
Further, two step processing frocks include:
a second step of tooling bottom plate; and
the four groups of two-step tool supporting components are arranged on the two-step tool bottom plate;
the two-step tool supporting assembly is provided with a positioning support cylinder matched with the axle box spring seat and a spring seat pressing plate assembly positioned on the side surface of the positioning support cylinder;
the end part of the axle box spring seat is formed into a spring seat excircle, the positioning support cylinder is formed with a positioning groove, and the spring seat excircle can be embedded into the positioning groove;
the positioning support cylinder is matched with an axle box spring seat positioned at the side beam transition body and supports the bogie frame;
the spring seat pressing plate assembly compresses the convex part of the outer circle side surface of the spring seat.
Further, the spring seat platen assembly includes:
a spring seat pressing plate connecting rod which is close to the positioning support cylinder and is connected with the two-step tool bottom plate; and
and the spring seat pressing plate is arranged at the upper end of the spring seat pressing plate connecting rod.
The invention discloses a processing technology of a B-type vehicle frame, which is based on the B-type vehicle frame processing device and mainly comprises the following steps:
s1, scribing the framework, namely placing the framework on a horizontal support of a scribing platform, and scribing a cross center line and a height direction reference line of the framework;
s2, one-step clamping, namely reversely placing the framework on a one-step processing tool, and clamping and positioning the framework by using a one-step tool clamping assembly;
s3, processing the cross beam and the side beam of the framework in one step, and processing the excircle of the spring seat by using an excircle boring cutter;
s4, performing two-step clamping, namely placing the framework processed in the one step in the two-step processing tool in the forward direction, supporting the framework by using the two-step tool supporting assembly, and fastening and positioning by using the spring seat pressing plate assembly;
and S5, processing the rest parts of the framework processed in the step two, and processing the spring seat hole by using a forming cutter.
Further, in the step S4, a micrometer is used to measure and finish-mill the planes of the four groups of two-step tool support assemblies of the two-step machining tool, and the height difference between the four groups of two-step tool support assemblies is not greater than 0.01 mm.
In the technical scheme, the processing device and the processing technology for the B-type vehicle frame provided by the invention have the following beneficial effects:
the device adopts the one-step processing tool and the two-step processing tool to clamp and process the framework step by step, ensures the accuracy of the clamping and positioning of the framework processing, and ensures the accuracy of the clamping by taking the axle box spring seat as a positioning reference. On one hand, the state of the framework is consistent with that of the bogie during assembly, the processing feasibility is guaranteed, the fixation in three directions is realized by one-time clamping, the repeated adjustment of the tool is avoided, and the two-step processing efficiency of the framework is improved.
According to the processing technology, the excircle of the axle box spring seat is processed by adopting the excircle boring cutter, so that the processing precision and the position accuracy can be ensured; the formed milling cutter is adopted for processing the spring seat hole, so that the processing precision is ensured, and the processing efficiency is improved; when the diameter of the axle box spring seat is processed, the excircle boring cutter is adopted, and the precision is ensured. The structure is provided with a plurality of sinking platforms which are processed by a back reaming process, so that the problem of insufficient forward processing space is solved, the coaxiality of holes is ensured, the depth of a counter bore is easy to control, the thickness requirement of a drawing is met, and the subsequent assembly requirement is facilitated.
According to the invention, when the relative position of the brake cylinder seat hole and the diameter of the axle box spring seat are detected, the through-stop ring is adopted for detection, so that the accuracy requirement and the detection rapidity are met.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural diagram of a one-step processing tool of a B-type frame processing device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a one-step tool clamping assembly of a one-step processing tool of the B-type vehicle frame processing device according to the embodiment of the invention;
FIG. 3 is a schematic structural view of a B-type frame processing device according to an embodiment of the present invention, wherein the frame is reversely arranged in a one-step processing tool;
FIG. 4 is an enlarged schematic view of a matching structure of a one-step tool clamping assembly and a frame of the B-type vehicle frame processing device provided by the embodiment of the invention;
FIG. 5 is a schematic structural diagram of a two-step machining tool of the B-type frame machining device according to the embodiment of the present invention;
fig. 6 is a schematic structural diagram of a two-step tool support assembly of the B-type frame processing device according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of the frame of the B-type frame processing device provided by the embodiment of the invention when the frame is positively arranged on the two-step processing tool.
Description of reference numerals:
1. one-step processing of the tool; 2. secondly, processing a tool;
10. a frame;
101. one-step tooling bottom plate; 102. one-step tooling support piece; 103. measuring an end support; 104. a pressure plate connecting rod; 105. pressing a plate; 106. a side support link; 107. a side support;
201. a second step of tooling bottom plate; 202. positioning the branch cylinder; 203. positioning a groove; 204. a spring seat pressure plate connecting rod; 205. a spring seat pressing plate;
1001. a cross beam; 1002. a side beam; 1003. side beam ends; 1004. a side beam transition body; 1005. a pedestal spring seat.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
See fig. 1-7;
the B type vehicle frame processingequipment of this embodiment, the device includes:
processing the tool 1 in one step; and
a step 2 of processing a tool;
the one-step processing tool 1 is integrated with a plurality of groups of one-step tool clamping components, and the bogie frame 10 is reversely placed on the one-step processing tool 1 and is clamped and positioned by the one-step tool clamping components;
two step processing frock 2 integration have two step frock supporting component of multiunit, and bogie frame 10 forward is placed on two step processing frock 2 to support the location through two step frock supporting component.
Specifically, the embodiment discloses a device suitable for processing a novel B-type vehicle bogie frame, which mainly comprises two parts, wherein the first part is a one-step processing tool 1, the one-step processing tool 1 is mainly used as a tool for first processing of the frame 10, the second part is a two-step processing tool 2, the two-step processing tool is used as secondary processing of the frame 10 after the primary processing, and the two-step processing is respectively aimed at processing different parts of the frame 10. Wherein, on one-step processing frock 1, framework 10 is placed on it in reverse to utilize above-mentioned one-step frock clamping subassembly to realize the clamping location. On two step processing frock 2, framework 10 is arranged on it forward to utilize two step frock supporting component to support the location, through the high location frock of accurate nature, further ensured the precision of processing, and the convenience, the device novel structure, the simple operation.
The present embodiment is explained and explained first with further details of the main structure of the B-type vehicle frame, and specifically, the bogie frame 10 suitable for use in the apparatus includes:
the two cross beams 1001 are arranged at intervals; and
side members 1002 connected to both ends of the cross member 1001;
the cross member 1001 extends in the horizontal direction;
the side member 1002 includes:
a side member intermediate body located at the middle thereof and connected to the cross member 1001; and
side member end portions 1003 formed at both ends of the side member intermediate body;
the side beam end part 1003 and the side beam intermediate body are connected into a whole through a side beam transition body 1004 which extends obliquely;
side sill end 1003 and side sill transition body 1004 each have a pedestal spring seat 1005.
The two-step tool disclosed in this embodiment further defines several portions of the frame 10 that cooperate with the tool, as described in detail above.
Preferably, the one-step processing tool 1 of the embodiment includes:
a one-step tooling bottom plate 101;
four groups of one-step tool clamping assemblies arranged on the one-step tool bottom plate 101; and
a one-step tool support member 102 located at the middle position of the one-step tool base plate 101;
the one-step tooling clamping assembly is matched with the side beam end part 1003 of the bogie frame 10 and clamps and positions the bogie frame 10 at the side beam end part 1003;
the one-step tool support 102 supports the upper surface of the cross member 1001.
Wherein, foretell one step of frock clamping subassembly includes:
the side beam end supports 103, the number of the side beam end supports 103 is two, the two side beam end supports 103 are arranged at intervals along the extending direction of the side beam end 1003, and the side beam end supports 103 support the upper surface of the side beam end 1003;
one-step tooling pressing plate assembly; and
one-step tooling side support assembly;
the one-step tool pressing plate assembly is provided with a pressing plate connecting rod 104 connected with the one-step tool bottom plate 101 and a pressing plate 105 arranged at the upper end of the pressing plate connecting rod 104;
a pressure plate 105 of the one-step tooling pressure plate assembly is pressed and held on the lower surface of the end part 1003 of the side beam through a pressure plate connecting rod 104;
the one-step tooling side support assembly has a side support link 106 connected to the one-step tooling bottom plate 101, and a side support 107 mounted on an upper portion of the side support link 106, the side support 107 extending toward a side of the side beam end 1003 and abutting against a side of the side beam end 1003.
Firstly, the present embodiment further defines the one-step machining tool 1 according to the structure of the frame 10 when it is placed in the reverse direction. The one-step tool clamping assembly mainly comprises a one-step tool bottom plate 101, the one-step tool clamping assembly and a one-step tool supporting piece 102. The cross member 1001 is supported by the one-step tool support member 102, and when the frame 10 is placed in the reverse direction, the one-step tool support member 102 is supported on the upper surface thereof. And one step of frock clamping subassembly side matches with curb girder tip 1003, realizes clamping and location to the framework from four curb girder tip 1003. In one-step clamping, the supporting point of the tool and the pressure plate 105 are positioned on the same straight line, so that the deformation of the framework 10 caused by clamping can be reduced to the greatest extent. In one-step processing, the outer circles of a series of spring seats are processed by rough processing and fine processing of the outer circle boring cutter, so that the precision and the position accuracy of the part can be guaranteed.
Preferably, the two-step machining tool 2 of the embodiment includes:
a second step of tooling bottom plate 201; and
four groups of two-step tool supporting components arranged on the two-step tool baseplate 201;
the second-step tool supporting assembly is provided with a positioning support cylinder 202 matched with the axle box spring seat 1005 and a spring seat pressing plate assembly positioned on the side surface of the positioning support cylinder 202;
the end part of the axle box spring seat 1005 is formed into a spring seat excircle, the positioning support 202 is formed with a positioning groove 203, and the spring seat excircle can be embedded into the positioning groove 203;
the positioning strut 202 cooperates with the pedestal spring seat 1005 at the side sill transition body 1004 and supports the bogie frame 10;
the spring seat pressing plate assembly presses the convex part on the outer circle side surface of the spring seat.
Wherein, foretell spring holder clamp plate subassembly includes:
a spring seat pressing plate connecting rod 204 which is close to the positioning support cylinder 202 and is connected with the two-step tool bottom plate 201; and
a spring seat pressure plate 205 mounted on the upper end of the spring seat pressure plate link 204.
According to the clamping and positioning requirements that the framework 10 needs to be placed in the forward direction during the two-step processing, the structure of the two-step processing tool 2 matched with the framework 10 placed in the forward direction is further limited. Four sets of two-step tooling support assemblies are used to mate with and support pedestal spring seats 1005 on side beams 1002 to support and clamp frame 10 in position. The positioning support 202 of the embodiment is matched with an axle box spring seat 1005 at the position of a side beam transition body, and the positioning groove 203 of the positioning support 202 can enable the outer circle of the axle box spring seat 1005 to be embedded therein to form embedded supporting positioning, and fastening is realized under the pressing of a spring seat pressing plate assembly at the side surface, so that a positioning framework is realized.
The invention discloses a processing technology of a B-type vehicle frame, which is based on the B-type vehicle frame processing device and mainly comprises the following steps:
s1, scribing the framework 10, namely placing the framework 10 on a horizontal support of a scribing platform, and scribing a cross center line and a height direction reference line of the framework 10;
s2, one-step clamping, namely reversely placing the framework 10 on the one-step processing tool 1, and clamping and positioning the framework 10 by using a one-step tool clamping component;
s3, processing each part of the cross beam 1001 and the side beam 1002 of the framework 10 by one step, and processing the excircle of the spring seat by using an excircle boring cutter;
s4, performing two-step clamping, namely placing the framework 10 processed in the one step in the two-step processing tool 2 in the forward direction, supporting the framework 10 by using a two-step tool supporting assembly, and fastening and positioning by using a spring seat pressing plate assembly;
and S5, a second step of processing, namely processing the rest parts of the framework 10 processed in the first step and processing the spring seat holes by using a forming cutter.
Preferably, in the step S4, a micrometer is used to measure and finish-mill the planes of the four groups of two-step tool supporting assemblies of the two-step machining tool 2, and the height difference between the four groups of two-step tool supporting assemblies is not greater than 0.01 mm.
In the technical scheme, the processing device and the processing technology for the B-type vehicle frame provided by the invention have the following beneficial effects:
the device adopts the one-step processing tool 1 and the two-step processing tool 2 to clamp and process the framework 10 step by step, so that the accuracy of clamping and positioning in the framework 10 processing is ensured, and the accuracy of clamping is ensured by taking the axle box spring seat 1005 as a positioning reference. On one hand, the state of the framework 10 is met during the assembly of the bogie, the feasibility of machining is guaranteed, meanwhile, the fixation in three directions is realized through one-time clamping, the repeated adjustment of the tool is avoided, and the efficiency of two-step machining of the framework is improved.
According to the processing technology, the outer circle of the axle box spring seat 1005 is processed by the outer circle boring cutter, so that the processing precision and the position accuracy can be guaranteed; the formed milling cutter is adopted for processing the spring seat hole, so that the processing precision is ensured, and the processing efficiency is improved; when processing axle box spring seat 1005 diameter, adopt excircle boring cutter, guarantee the precision. The structure 10 is processed by adopting a back reaming process at a plurality of sinking platforms, the problem of insufficient forward processing space is solved, the coaxiality of holes is ensured, the depth of the counter bore is easy to control, the thickness requirement of a drawing is met, and the subsequent assembly requirement is facilitated.
According to the invention, when the relative position of the brake cylinder seat hole and the diameter of the axle box spring seat 1005 are detected, the through-stop ring is adopted for detection, so that the accuracy requirement and the detection rapidity are met.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (8)

  1. The B-type vehicle frame processing device is characterized by comprising:
    one-step processing of the tool (1); and
    a step of processing a tool (2);
    the one-step machining tool (1) is integrated with a plurality of groups of one-step tool clamping components, and a bogie frame (10) is reversely placed on the one-step machining tool (1) and clamped and positioned by the one-step tool clamping components;
    the two-step machining tool (2) is integrated with a plurality of groups of two-step tool supporting components, and the bogie framework (10) is placed on the two-step machining tool (2) in the forward direction and supported and positioned through the two-step tool supporting components.
  2. 2. The B-type vehicle frame processing apparatus according to claim 1, wherein a bogie frame (10) adapted to the apparatus comprises:
    the two cross beams (1001) are arranged at intervals; and
    a side member (1002) connected to both ends of the cross member (1001);
    the cross beam (1001) extends in a horizontal direction;
    the side beam (1002) includes:
    a side member intermediate body located at a middle portion thereof and connected to the cross member (1001); and
    side sill end portions (1003) formed at both ends of the side sill intermediate;
    the side beam end parts (1003) and the side beam middle bodies are connected into a whole through side beam transition bodies (1004) extending obliquely;
    and the side beam end part (1003) and the side beam transition body (1004) are respectively provided with an axle box spring seat (1005).
  3. 3. The B-type vehicle frame processing device according to claim 2, wherein the one-step processing tool (1) comprises:
    a one-step tooling bottom plate (101);
    the four groups of one-step tool clamping components are arranged on the one-step tool bottom plate (101); and
    the one-step tool supporting piece (102) is positioned in the middle of the one-step tool bottom plate (101);
    the one-step tool clamping assembly is matched with the end part (1003) of the side beam of the bogie frame (10), clamps and positions the bogie frame (10) at the end part (1003) of the side beam;
    the one-step tool support (102) supports the upper surface of the cross beam (1001).
  4. 4. The B-type vehicle frame processing device according to claim 3, wherein the one-step tool clamping assembly comprises:
    the number of the side beam end supports (103) is two, the two side beam end supports (103) are arranged at intervals along the extending direction of the side beam end (1003), and the side beam end supports (103) support the upper surface of the side beam end (1003);
    one-step tooling pressing plate assembly; and
    one-step tooling side support assembly;
    the one-step tool pressing plate assembly is provided with a pressing plate connecting rod (104) connected with the one-step tool bottom plate (101) and a pressing plate (105) arranged at the upper end of the pressing plate connecting rod (104);
    a pressure plate (105) of the one-step tooling pressure plate assembly is pressed and held on the lower surface of the end part (1003) of the side beam through the pressure plate connecting rod (104);
    the one-step tooling side supporting assembly is provided with a side supporting connecting rod (106) connected with the one-step tooling bottom plate (101) and a side supporting piece (107) mounted at the upper part of the side supporting connecting rod (106), and the side supporting piece (107) extends towards the side surface of the side beam end part (1003) and is abutted against the side surface of the side beam end part (1003).
  5. 5. The B-type vehicle frame processing device according to claim 2, wherein the two-step processing tool (2) comprises:
    a two-step tool bottom plate (201); and
    four groups of two-step tool supporting components arranged on the two-step tool bottom plate (201);
    the two-step tool supporting assembly is provided with a positioning support cylinder (202) matched with the axle box spring seat (1005) and a spring seat pressing plate assembly positioned on the side surface of the positioning support cylinder (202);
    the end part of the axle box spring seat (1005) is formed into a spring seat excircle, the positioning support cylinder (202) is formed with a positioning groove (203), and the spring seat excircle can be embedded into the positioning groove (203);
    the positioning fulcrum (202) is matched with an axle box spring seat (1005) positioned at the side beam transition body (1004) and supports the bogie frame (10);
    the spring seat pressing plate assembly compresses the convex part of the outer circle side surface of the spring seat.
  6. 6. The B-type vehicle frame processing apparatus according to claim 5, wherein the spring seat presser plate assembly includes:
    a spring seat pressing plate connecting rod (204) which is close to the positioning support cylinder (202) and is connected with the two-step tool bottom plate (201); and
    and the spring seat pressing plate (205) is arranged at the upper end of the spring seat pressing plate connecting rod (204).
  7. The processing technique of the B-type frame, characterized in that the processing technique of the B-type frame is based on the processing device of the B-type frame according to any one of claims 1 to 6, and the processing technique mainly comprises the following steps:
    s1, scribing the framework (10), namely placing the framework (10) on a horizontal support of a scribing platform, and scribing a cross center line and a height direction reference line of the framework (10);
    s2, one-step clamping, namely reversely placing the framework (10) on the one-step processing tool (1), and clamping and positioning the framework (10) by using the one-step tool clamping assembly;
    s3, processing the cross beam (1001) and the side beam (1002) of the framework (10) in one step, and processing the excircle of the spring seat by using an excircle boring cutter;
    s4, performing two-step clamping, namely placing the framework (10) subjected to the one-step processing on the two-step processing tool (2) in the forward direction, supporting the framework (10) by using a two-step tool supporting assembly, and fastening and positioning by using a spring seat pressing plate assembly;
    and S5, performing two-step processing, namely processing the rest parts of the framework (10) processed in the one step, and processing the spring seat hole by using a forming cutter.
  8. 8. The processing technology of the B-type vehicle frame according to claim 7, wherein in the step S4, the planes of four groups of two-step tool supporting components of the two-step processing tool (2) are measured and finish-milled by a micrometer, and the height difference of the four groups of two-step tool supporting components is not more than 0.01 mm.
CN202111359941.0A 2021-11-17 2021-11-17 B-type vehicle frame machining device and machining process thereof Pending CN113941862A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
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US6364817B1 (en) * 2000-09-08 2002-04-02 Unova Ip Corp. Automotive framing apparatus
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CN106736179A (en) * 2017-01-06 2017-05-31 中车青岛四方机车车辆股份有限公司 A kind of framework flexibility group mounted welder
CN110919220A (en) * 2019-12-17 2020-03-27 中车长春轨道客车股份有限公司 Assembly welding process for end beam framework of railway vehicle

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Publication number Priority date Publication date Assignee Title
US6364817B1 (en) * 2000-09-08 2002-04-02 Unova Ip Corp. Automotive framing apparatus
CN201711779U (en) * 2010-01-13 2011-01-19 南车株洲电力机车有限公司 Integral horizontal type processing clamp of subway framework
CN105729176A (en) * 2016-03-21 2016-07-06 中国北车集团大同电力机车有限责任公司 Novel two-procedure processing fixture for passenger transport bogie frame
CN106736179A (en) * 2017-01-06 2017-05-31 中车青岛四方机车车辆股份有限公司 A kind of framework flexibility group mounted welder
CN110919220A (en) * 2019-12-17 2020-03-27 中车长春轨道客车股份有限公司 Assembly welding process for end beam framework of railway vehicle

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Application publication date: 20220118