Monorail bogie frame clamping device and frame machining method

Abstract

A monorail bogie frame clamping device and a frame machining method. The monorail bogie frame clamping device is used for fixing a frame (100), and comprises a one-step machining clamping device (200) and a two-step machining clamping device (300); the frame (100) is arranged on the one-step machining clamping device (200) in a horizontal state; the one-step machining clamping device (200) is used for completing position adjustment and clamping of the frame (100) in the horizontal direction; the frame (100) is arranged on the two-step machining clamping device (300) in a vertical state; and the two-step machining clamping device (300) is used for completing position adjustment and clamping of the frame (100) in the vertical direction. When in use, the frame (100) is clamped by the one-step machining clamping device (200) in the horizontal direction, and the frame (100) is machined by means of a vertical machining center; and the frame (100) is then clamped by the two-step machining clamping device (300) in the vertical direction, and the frame (100) is finally machined by means of a horizontal machining center, so that in the machining process of the frame (100), the frame (100) is quickly and firmly clamped, and the position of the frame (100) does not need to be adjusted multiple times during machining, thereby improving the machining precision of the frame (100).

Description

Monorail train bogie frame clamping device and frame processing method

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 21, 2023, with application number 202311054548.X and invention name “A monorail train bogie frame clamping device and frame processing method”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the technical field of frame clamping and processing, and in particular to a monorail train bogie frame clamping device and a frame processing method. Background Art

[0003] Monorail trains use rubber tires to run on elevated concrete tracks. They have the characteristics of small space occupation, environmental friendliness, strong climbing ability, strong adaptability to terrain conditions, and low vehicle construction and maintenance costs. The construction and development of monorail transportation is an effective way to improve urban traffic conditions. The bogie, as the running mechanism of the monorail train, bears the weight of the entire vehicle and passengers and is a key component of the entire vehicle. The frame is an important component of the bogie, which is used to connect the body and wheels and transfer the weight of the vehicle and passengers to the wheels through the frame. The frame of the monorail bogie is produced by welding steel plates, round steel and other profiles and castings and then machining them. It has the characteristics of complex structure, high processing precision requirements, and complex processing steps.

[0004] The frame is an important component of the monorail bogie. Its structure, shape, and size must meet the structural, shape, and assembly requirements of all parts and components, and the machining precision is very high. At the same time, due to structural and functional requirements, the size of the monorail bogie frame is much larger than that of other types of bogies, which makes it difficult to process. In the existing technology, the frame processing is prone to problems such as loose fixation and poor machining precision caused by vibration.

[0005] Therefore, how to improve the accuracy of frame processing is a technical problem that those skilled in the art currently need to solve.

[0006] Summary of the Invention

[0007] In view of this, the first object of the present invention is to provide a monorail train bogie frame clamping device to improve the accuracy of frame processing;

[0008] The second object of the present invention is to provide a frame processing method.

[0009] In order to achieve the first above-mentioned object, the present invention provides the following technical solutions:

[0010] A monorail train bogie frame clamping device is used to fix the frame, including a one-step processing clamping device and a two-step processing clamping device. The frame is arranged in a horizontal state in the one-step processing clamping device, and the one-step processing clamping device is used to complete the position adjustment and clamping of the frame in the horizontal direction. The frame is arranged in a vertical state in the two-step processing clamping device, and the two-step processing clamping device is used to complete the position adjustment and clamping of the frame in the vertical direction.

[0011] Optionally, in the above-mentioned monorail train bogie frame clamping device, the one-step processing clamping device includes a base plate, a pressing group, a middle support seat, a support assembly, a limit assembly, a first box beam and a second box beam, wherein:

[0012] The clamping group includes a first clamping assembly, a second clamping assembly and a third clamping assembly. The first clamping assembly is connected to the bottom plate and is used to fix the middle body of the frame. The second clamping assembly is arranged on the first box beam and the second box beam and is used to fix the horizontal wheel mounting seat of the frame. The third clamping assembly is arranged on the first box beam and the second box beam and is used to clamp the end body of the frame.

[0013] The middle support seat is arranged in the middle of the bottom plate and is used to support the air spring beam of the frame;

[0014] The support assembly is arranged on the first box girder and the second box girder, and is used to support the end body of the frame;

[0015] The limiting assembly is arranged on the first box beam and the second box beam, and is used to limit the end body of the frame;

[0016] The first box girder and the second box girder are symmetrically arranged on the bottom plate.

[0017] Optionally, in the above-mentioned monorail train bogie frame clamping device, two or more first clamping assemblies are arranged on the base plate, one or more second clamping assemblies are arranged on the first box beam and / or the second box beam, and one or more third clamping assemblies are arranged on the first box beam and / or the second box beam.

[0018] Optionally, in the above-mentioned monorail train bogie frame clamping device, the first clamping assembly includes a support rod, a height adjustment nut, a clamping rod, a locking nut, a first pressure plate and a flange nut, wherein:

[0019] The first pressing plate is provided with a strip-shaped through hole, and the first pressing plate is used to press the frame;

[0020] The first end of the support rod is connected to the bottom plate, and the second end thereof is connected to the strip-shaped through hole;

[0021] The first end of the pressing rod is connected to the bottom plate, and the second end thereof is connected to the strip-shaped through hole;

[0022] The height adjustment nut is used to connect the second end of the support rod and the first pressing plate;

[0023] The locking nut is used to connect the first end of the pressing rod and the first pressing plate;

[0024] The flange nut is used to connect the second end of the pressing rod and the first pressing plate;

[0025] The first pressing assembly, the second pressing assembly and the third pressing assembly have the same structure.

[0026] Optionally, in the above-mentioned monorail train bogie frame clamping device, the middle support seat includes a first round steel and a first steel plate, the first steel plate is connected to the bottom plate, the axis of the first round steel is arranged perpendicular to the first steel plate, the first round steel is connected to the first steel plate, and the number of the middle support seats is two, and they are symmetrically arranged on the bottom plate;

[0027] The support assembly includes a second round steel and a second steel plate. The axis of the second round steel is arranged perpendicular to the second steel plate. The second round steel is connected to the second steel plate. A jacking bolt and a first position locking nut are arranged on the top of the second round steel. The jacking bolt and the first position locking nut cooperate to adjust the height of the support assembly.

[0028] The limiting assembly includes a T-shaped fixing plate, a locking bolt and a second position locking nut. The T-shaped fixing plate is used to connect the locking bolt, which cooperates with the second position locking nut to form the end body of the limiting frame.

[0029] Optionally, in the above-mentioned monorail train bogie frame clamping device, the two-step processing clamping device includes a tooling body, a first mounting plate, an end clamping seat, a second mounting plate, an intermediate support seat, a bottom support seat, a first support assembly, a second support assembly and a pressing assembly, wherein:

[0030] The tooling body includes a base, which is connected to a machine tool table for processing the frame;

[0031] The first mounting plate is connected to the tooling body, and the end clamping seat is connected to the first mounting plate and is used to clamp the end body of the frame;

[0032] The second mounting plate is connected to the tooling body, and the middle support seat is arranged perpendicular to the second mounting plate and is used to support the middle body of the frame;

[0033] The bottom support is connected to the base and is used to support the horizontal wheel mounting seat of the frame;

[0034] The first end of the first support assembly and the first end of the second support assembly are connected to the base, and the second end of the first support assembly and the second end of the second support assembly are used to support the motor seat flange of the frame;

[0035] The pressing assembly is connected to the tooling body and is used for pressing the horizontal wheel mounting seat of the frame.

[0036] Optionally, in the above-mentioned monorail train bogie frame clamping device, the end clamping seat includes a second pressing plate, a limiting pin, an adjusting nut and a fixing plate, the fixing plate is used to connect the first mounting plate and the second pressing plate, the limiting pin is connected to the fixing plate and is used to limit the end of the frame in the transverse direction, and the adjusting nut is connected to the second pressing plate and is used to limit the end of the frame in the longitudinal direction;

[0037] The bottom support seat includes a support column and a threaded support pin, the support column is connected to the base, and the threaded support pin is connected to the top of the support column.

[0038] Optionally, in the above-mentioned monorail train bogie frame clamping device, the pressing assembly includes a mounting shell, a third pressure plate, a third position locking nut, a support beam and a lifting pin, the mounting shell is connected to the tooling body, the third position locking nut is used to connect the third pressure plate and the mounting shell, the support beam is arranged perpendicular to the tooling body and connected to the tooling body, the lifting pin is arranged perpendicular to the support beam and connected to the support beam, and is used to support the horizontal wheel mounting seat of the frame.

[0039] The monorail train bogie frame clamping device and frame processing method provided by the present invention, when in use, use a one-step processing clamping device to clamp the frame in the horizontal direction, and use a vertical machining center to process the frame, and then use a two-step processing clamping device to clamp the frame in the vertical direction, and use a horizontal machining center to perform final processing on the frame, thereby achieving rapid and secure clamping of the frame during the processing process, avoiding multiple adjustments to the position of the frame during processing, and thus improving the processing accuracy of the frame.

[0040] In order to achieve the second above-mentioned object, the present invention provides the following technical solutions:

[0041] A frame processing method, using any of the above-mentioned monorail train bogie frame clamping devices, comprising:

[0042] Step S1: Marking the frame: Place the frame on the marking machine platform, and determine the longitudinal centerline of the frame using the inner surface of the horizontal wheel mounting seat and the side surface of the frame as references. Determine the transverse centerline of the frame using the large hole of the frame, the inner surface of the central traction device, and the air spring surface as references. Determine the axle centerline of the frame using the axle mounting hole and the air spring surface as references.

[0043] Step S2: One-step clamping, placing the frame on a one-step processing and clamping device, and the one-step processing and clamping device clamps the frame;

[0044] Step S3: One-step processing, processing four two-step processing reference blocks on the frame to ensure the flatness is ≤ 0.5mm, and using a vertical machining center to process the frame;

[0045] Step S4: Two-step clamping, placing the frame on the two-step processing clamping device, using the planes of the four process reference blocks as reference planes, adjusting the position of the frame according to the axle centerline, transverse centerline, and longitudinal centerline, and the two-step processing clamping device clamps the frame;

[0046] Step S5: Second step processing, using a horizontal machining center to perform final processing on the frame.

[0047] Optionally, in the above-mentioned frame processing method, step S2 further comprises: processing the pressing group of the clamping device to press the frame, processing the air spring beam of the middle support seat supporting the frame of the clamping device, processing the end body of the support assembly supporting the frame of the clamping device, and processing the end body of the limiting assembly limiting the frame of the clamping device;

[0048] Step S4 also includes: two-step processing of the end clamping seat of the clamping device to clamp the end body of the frame, two-step processing of the middle support seat of the clamping device to support the middle body of the frame, two-step processing of the bottom support seat of the clamping device to support the horizontal wheel mounting seat of the frame, two-step processing of the first support assembly and the second support assembly of the clamping device to support the motor seat flange, and two-step processing of the horizontal wheel mounting seat of the pressing assembly of the clamping device to press the frame.

[0049] The frame processing method provided by the present invention has all the technical effects of the above-mentioned monorail train bogie frame clamping device due to the application of the above-mentioned monorail train bogie frame clamping device, and will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] FIG1 is an overall structural diagram of the architecture disclosed in an embodiment of the present invention;

[0052] FIG2 is an overall structural diagram of a one-step processing clamping device disclosed in an embodiment of the present invention;

[0053] FIG3 is a schematic diagram of the installation of a one-step processing clamping device and a frame disclosed in an embodiment of the present invention;

[0054] FIG4 is an overall structural diagram of a two-step processing clamping device disclosed in an embodiment of the present invention;

[0055] FIG5 is a schematic diagram of the installation of the two-step processing clamping device and the frame disclosed in an embodiment of the present invention;

[0056] in:

[0057] Frame 100, horizontal wheel mounting seat 101, air spring beam 102, motor seat flange 103, large hole 104, central traction device 105, axle mounting hole 106, process notch 107, stabilizing wheel bracket 108;

[0058] One-step processing of the clamping device 200, the base plate 201, and the first lifting ring 2011;

[0059] Middle support seat 202, first round steel 2021, first steel plate 2022;

[0060] Support assembly 203, second round steel 2031, second steel plate 2032;

[0061] Limiting assembly 204, first box beam 205, second box beam 206;

[0062] First pressing assembly 207, support rod 2071, height adjustment nut 2072, pressing rod 2073, locking nut 2074, first pressing plate 2075, flange nut 2076;

[0063] A second pressing assembly 208, a third pressing assembly 209;

[0064] Two-step processing clamping device 300, tooling body 301, first mounting plate 302;

[0065] End clamping seat 303, second pressing plate 3031, limiting pin 3032, adjusting nut 3033, fixing plate 3034;

[0066] Second mounting plate 304, middle support base 305, bottom support base 306, first support assembly 307, second support assembly 308;

[0067] Pressing assembly 309 , mounting shell 3091 , third pressing plate 3092 , third position locking nut 3093 , support beam 3094 , and lifting pin 3095 .

[0068] Longitudinal center line A, transverse center line B, axle center line C In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0069] FIG1 is an overall structural diagram of the architecture disclosed in an embodiment of the present invention;

[0070] FIG2 is an overall structural diagram of a one-step processing clamping device disclosed in an embodiment of the present invention;

[0071] FIG3 is a schematic diagram of the installation of a one-step processing clamping device and a frame disclosed in an embodiment of the present invention;

[0072] FIG4 is an overall structural diagram of a two-step processing clamping device disclosed in an embodiment of the present invention;

[0073] FIG5 is a schematic diagram of the installation of the two-step processing clamping device and the frame disclosed in an embodiment of the present invention;

[0074] in:

[0075] Frame 100, horizontal wheel mounting seat 101, air spring beam 102, motor seat flange 103, large hole 104, central traction device 105, axle mounting hole 106, process notch 107, stabilizing wheel bracket 108;

[0076] One-step processing of the clamping device 200, the base plate 201, and the first lifting ring 2011;

[0077] Middle support seat 202, first round steel 2021, first steel plate 2022;

[0078] Support assembly 203, second round steel 2031, second steel plate 2032;

[0079] Limiting assembly 204, first box beam 205, second box beam 206;

[0080] First pressing assembly 207, support rod 2071, height adjustment nut 2072, pressing rod 2073, locking nut 2074, first pressing plate 2075, flange nut 2076;

[0081] A second pressing assembly 208, a third pressing assembly 209;

[0082] Two-step processing clamping device 300, tooling body 301, first mounting plate 302;

[0083] End clamping seat 303, second pressing plate 3031, limiting pin 3032, adjusting nut 3033, fixing plate 3034;

[0084] Second mounting plate 304, middle support base 305, bottom support base 306, first support assembly 307, second support assembly 308;

[0085] Pressing assembly 309 , mounting shell 3091 , third pressing plate 3092 , third position locking nut 3093 , supporting beam 3094 , and lifting pin 3095 .

[0086] Longitudinal centerline A, transverse centerline B, axle centerline C DETAILED DESCRIPTION

[0087] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any novel efforts shall fall within the scope of protection of the present invention.

[0088] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," and "bottom" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the positions or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0089] It should be noted that machining centers are often divided into vertical machining centers and horizontal machining centers according to the state of the spindle in space. The machining center whose spindle is in a vertical state in space is called a vertical machining center, and the one whose spindle is in a horizontal state in space is called a horizontal machining center.

[0090] As shown in Figures 1 to 5, the monorail train bogie frame clamping device disclosed in the present invention is used to fix the frame 100, including a one-step processing clamping device 200 and a two-step processing clamping device 300. The frame 100 is arranged in a horizontal state on the one-step processing clamping device 200, and the one-step processing clamping device 200 is used to complete the position adjustment and clamping of the frame 100 in the horizontal direction. The frame 100 is arranged in a vertical state on the two-step processing clamping device 300, and the two-step processing clamping device 300 is used to complete the position adjustment and clamping of the frame 100 in the vertical direction. When in use, the one-step processing clamping device 200 is used to clamp the frame 100 in the horizontal direction, and the vertical machining center is used to process the frame 100. Then, the two-step processing clamping device 300 is used to clamp the frame 100 in the vertical direction, and the horizontal machining center is used to perform final processing on the frame 100. During the processing of the frame 100, the frame 100 is clamped quickly and firmly, avoiding multiple adjustments to the position of the frame 100 during processing, thereby improving the processing accuracy of the frame 100.

[0091] In order to optimize the above technical solution, the one-step processing clamping device 200 includes a base plate 201, a pressing group, a middle support seat 202, a support assembly 203, a limit assembly 204, a first box beam 205 and a second box beam 206, wherein:

[0092] The clamping group includes a first clamping assembly 207, a second clamping assembly 208 and a third clamping assembly 209. The first clamping assembly 207 is connected to the bottom plate 201 and is used to fix the middle body of the frame 100. The second clamping assembly 208 is arranged on the first box beam 205 and the second box beam 206 and is used to fix the horizontal wheel mounting seat 101 of the frame 100. The third clamping assembly 209 is arranged on the first box beam 205 and the second box beam 206 and is used to compress the end body of the frame 100.

[0093] The middle support base 202 is arranged in the middle of the bottom plate 201 and is used to support the air spring beam 102 of the frame 100;

[0094] The support assembly 203 is arranged on the first box beam 205 and the second box beam 206 to support the end body of the frame 100;

[0095] The limiting assembly 204 is arranged on the first box beam 205 and the second box beam 206, and is used to limit the end body of the frame 100;

[0096] The first box beam 205 and the second box beam 206 are symmetrically arranged on the bottom plate 201 .

[0097] Specifically, the base plate 201 is a thick steel plate to ensure the overall rigidity of the one-step processing clamping device 200, to avoid vibration caused by the poor rigidity of the base plate 201 during the processing of the frame 100, which affects the processing accuracy. A plurality of mounting threaded holes are processed on the base plate 201 to ensure the installation accuracy of each component.

[0098] Specifically, the first box beam 205 and the second box beam 206 are produced by welding and machining steel plates, and play the role of supporting and fixing the end body of the frame 100. The first box beam 205 and the second box beam 206 are both provided with a process notch 107 for avoiding the axle mounting seat of the frame 100.

[0099] Furthermore, a first lifting ring 2011 is arranged on the base plate 201. When the one-step processing clamping device 200 needs to be moved, the one-step processing clamping device 200 can be lifted and moved safely and quickly by an overhead crane. During use, the one-step processing clamping device 200 is lifted to the machine tool workbench by the first lifting ring 2011, and the frame 100 is lifted onto the one-step processing clamping device 200, ensuring that the longitudinal centerline and the transverse centerline of the frame 100 are aligned with the center of the one-step processing clamping device 200. The frame 100 is pressed and limited by the pressing group, the middle support seat 202, the support assembly 203 and the limit assembly 204, thereby fixing the frame 100 and completing the clamping of the frame 100. Such an arrangement can achieve fast and secure clamping of the frame 100, avoids multiple adjustments to the position of the frame 100 during processing, and thus improves the processing accuracy of the frame 100. In order to optimize the above technical solution, two or more first pressing assemblies 207 are arranged on the bottom plate 201, one or more second pressing assemblies 208 are arranged on the first box beam 205 and / or the second box beam 206, and one or more third pressing assemblies 209 are arranged on the first box beam 205 and / or the second box beam 206. Specifically, the present invention preferably has four first pressing assemblies 207 arranged on the bottom plate 201, two second pressing assemblies 208 and two third pressing assemblies 209 arranged on the first box beam 205, and two second pressing assemblies 208 and two third pressing assemblies 209 arranged on the second box beam 206.

[0100] During use, the four first clamping assemblies 207 on the base plate 201 are symmetrically distributed on both sides of the central body of the frame 100 to compress the central body. The second clamping assemblies 208 on the first box beam 205 are symmetrically arranged at the edges of the first box beam 205, and the second clamping assemblies 208 on the second box beam 206 are symmetrically arranged at the edges of the second box beam 206, simultaneously acting on the four horizontal wheel mounting seats 101 of the frame 100 to compress them. The third clamping assembly 209 on the first box beam 205 is arranged at the middle of the first box beam 205, and the third clamping assembly 209 on the second box beam 206 is arranged at the middle of the second box beam 206, simultaneously acting on the end bodies of the frame 100 to compress them. This arrangement can simultaneously compress the central body and the end bodies of the frame 100, completing the clamping of the frame 100, avoiding the need to adjust the position of the frame 100 multiple times during processing, thereby improving the processing accuracy of the frame 100.

[0101] In order to optimize the above technical solution, the first pressing assembly 207 includes a support rod 2071, a height adjustment nut 2072, a pressing rod 2073, a locking nut 2074, a first pressing plate 2075 and a flange nut 2076, wherein:

[0102] The first pressing plate 2075 is provided with a strip-shaped through hole, and the first pressing plate 2075 is used to press the frame 100;

[0103] The first end of the support rod 2071 is connected to the bottom plate 201, and the second end thereof is connected to the strip-shaped through hole;

[0104] The first end of the pressing rod 2073 is connected to the bottom plate 201, and the second end thereof is connected to the strip-shaped through hole;

[0105] The height adjustment nut 2072 is used to connect the second end of the support rod 2071 and the first pressing plate 2075;

[0106] The locking nut 2074 is used to connect the first end of the pressing rod 2073 and the first pressing plate 2075;

[0107] The flange nut 2076 is used to connect the second end of the pressing rod 2073 and the first pressing plate 2075;

[0108] The first pressing assembly 207 , the second pressing assembly 208 and the third pressing assembly 209 have the same structure.

[0109] Specifically, the structures of the first clamping assembly 207, the second clamping assembly 208 and the third clamping assembly 209 are the same, but the heights of the support rods and clamping rods included in the second clamping assembly 208 and the third clamping assembly 209 are different from the heights of the support rods 2071 and the clamping rods 2073, which are adapted to the height of the specific structure of the frame 100.

[0110] Specifically, the bottom of the support rod 2071 is processed with threads and a fastening plane that cooperate with the base plate 201, and the support rod 2071 is fastened to the pre-processed threaded hole on the base plate 201 using the fastening plane in conjunction with a wrench. The top of the support rod 2071 is processed with an internal threaded hole, the bottom of the height adjustment nut 2072 is processed with threads that cooperate with the support rod 2071, and the middle part is processed with six aspects that cooperate with the wrench. The bottom of the clamping rod 2073 is processed with threads that cooperate with the base plate 201, the middle part is provided with six aspects that cooperate with the wrench, and the upper part is provided with threads. The clamping rod 2073 is installed in the pre-fabricated threaded hole on the base plate 201 using a wrench in conjunction with the six aspects in the middle, and is limited by a locking nut 2074, while preventing the thread from being loosened due to vibration during the processing, which affects the clamping force. The first pressing plate 2075 is manufactured from steel and has an adjustable strip-shaped through-hole extending through the pressing rod 2073. The rear end engages with the flat surface on the height adjustment nut 2072, allowing the first pressing plate 2075 to move longitudinally while maintaining a fixed angle of movement, thus preventing rotation during machining. A flange nut 2076 is attached to the pressing rod 2073, with its lower flat surface engaging the first pressing plate 2075, threadedly maintaining the first pressing plate 2075's tight grip on the frame 100.

[0111] During use, the operator adjusts the height of the first clamping assembly 207, the second clamping assembly 208 and the third clamping assembly 209 and the position of the pressure plate so that the first clamping assembly 207, the second clamping assembly 208 and the third clamping assembly 209 just clamp the frame 100, thereby improving the processing accuracy of the frame 100.

[0112] In order to optimize the above technical solution, the middle support seat 202 includes a first round steel 2021 and a first steel plate 2022. The first steel plate 2022 is connected to the bottom plate 201. The axis of the first round steel 2021 is arranged perpendicular to the first steel plate 2022. The first round steel 2021 is connected to the first steel plate 2022. There are two middle support seats 202, which are symmetrically arranged on the bottom plate 201.

[0113] The support assembly 203 includes a second round steel 2031 and a second steel plate 2032. The axis of the second round steel 2031 is arranged perpendicular to the second steel plate 2032. The second round steel 2031 is connected to the second steel plate 2032. A jacking bolt and a first position locking nut are arranged on the top of the second round steel 2031. The jacking bolt and the first position locking nut cooperate to adjust the height of the support assembly 203.

[0114] The limiting assembly 204 includes a T-shaped fixing plate, a locking bolt and a second position locking nut. The T-shaped fixing plate is used to connect the locking bolt. The locking bolt cooperates with the second position locking nut to limit the end body of the limiting frame 100.

[0115] Specifically, two support assemblies 203 are disposed on each of the first and second box beams 205 and 206. Lifting bolts and first-position locking nuts cooperate to adjust the height of the support assemblies 203, thereby tightening the end bodies of the support structure 100. Two stopper assemblies 204 are disposed on each of the first and second box beams 205 and 206. The locking bolts of the stopper assemblies 204 cooperate with the second-position locking nuts to tighten the stopper assemblies 204 along the width of the end bodies. This arrangement ensures that the central support base 202 precisely supports the air spring beam 102, with the support assemblies 203 pressing against the end bodies and the stopper assemblies 204 tightening along the width of the end bodies, thus clamping the structure 100 and improving the machining accuracy of the structure 100.

[0116] In order to optimize the above technical solution, the two-step processing clamping device 300 includes a tooling body 301, a first mounting plate 302, an end clamping seat 303, a second mounting plate 304, an intermediate support seat 305, a bottom support seat 306, a first support assembly 307, a second support assembly 308 and a pressing assembly 309, wherein:

[0117] The tooling body 301 includes a base, which is connected to a machine tool table for processing the frame 100;

[0118] The first mounting plate 302 is connected to the tooling body 301, and the end clamping seat 303 is connected to the first mounting plate 302 for clamping the end body of the frame 100;

[0119] The second mounting plate 304 is connected to the tooling body 301, and the middle support seat 305 is arranged perpendicular to the second mounting plate 304 and is used to support the middle body of the frame 100;

[0120] The bottom support 306 is connected to the base and is used to support the horizontal wheel mounting 101 of the frame 100;

[0121] The first end of the first support assembly 307 and the first end of the second support assembly 308 are connected to the base, and the second end of the first support assembly 307 and the second end of the second support assembly 308 are used to support the motor seat flange 103 of the frame 100;

[0122] The pressing assembly 309 is connected to the tooling body 301 and is used to press the horizontal wheel mounting seat 101 of the frame 100 .

[0123] Specifically, the pressing assembly 309 can also be used to press the stabilizing wheel bracket 108 of the frame 100 .

[0124] Specifically, tooling 301 is manufactured by welding steel plates, square steel tubes, and round steel bars, followed by machining. This provides excellent strength and rigidity, preventing vibrations that could affect the accuracy of the frame 100 during machining. The lower end of tooling 301 is machined with an oblong hole that mates with the machine tool table and is connected to the table using bolts.

[0125] Furthermore, a second lifting ring is arranged on the two-step processing clamping device 300. When the two-step processing clamping device 300 needs to be moved, the overhead crane can be used to lift and safely and quickly move the two-step processing clamping device 300. When in use, the two-step processing clamping device 300 is hoisted onto the machine tool workbench through the second lifting ring, and the frame 100 is vertically lifted onto the two-step processing clamping device 300. The frame 100 is pressed and limited by the end clamping seat 303, the middle support seat 305, the bottom support seat 306, the first support assembly 307, the second support assembly 308 and the pressing assembly 309, thereby fixing the frame 100 and completing the clamping of the frame 100. Such an arrangement can achieve fast and firm clamping of the frame 100, avoids multiple adjustments to the position of the frame 100 during processing, and thus improves the processing accuracy of the frame 100.

[0126] In order to optimize the above technical solution, the end clamping seat 303 includes a second pressing plate 3031, a limiting pin 3032, an adjusting nut 3033 and a fixing plate 3034. The fixing plate 3034 is used to connect the first mounting plate 302 and the second pressing plate 3031. The limiting pin 3032 is connected to the fixing plate 3034 and is used to limit the end of the frame 100 in the transverse direction. The adjusting nut 3033 is connected to the second pressing plate 3031 and is used to limit the end of the frame 100 in the longitudinal direction.

[0127] The bottom support seat 306 includes a support column and a threaded support pin, the support column is connected to the base, and the threaded support pin is connected to the top of the support column.

[0128] Specifically, there are four end clamping seats 303 symmetrically distributed on the tooling body 301, with two of them forming a group to clamp the two end bodies of the frame 100. The stop pins 3032 of the end clamping seats 303 are used to clamp the end bodies horizontally on the frame 100, and the adjustment nuts 3033 are used to adjust the vertical clamping length of the second pressure plate 3031, so that the second pressure plate 3031 precisely clamps the end bodies. It should be noted that the structure of the second pressure plate 3031 is identical to that of the first pressure plate 2075.

[0129] Specifically, the bottom of the support column of the bottom support seat 306 is provided with a threaded hole for mounting with the tooling body 301, and the top of the support column is provided with an internally threaded hole for mounting a threaded support pin. The bottom of the threaded support pin is machined with threads for installation and adjustment, the middle is machined with a flat surface for mating with a wrench, and the top is machined into a spherical shape to facilitate position adjustment in the support state. The threaded support pin cooperates with the bottom support seat 306 to support the two horizontal wheel mounting seats 101 of the frame 100 in the vertical direction. By using a hexagonal flange nut to lock the height of the threaded support pin, the thread is prevented from loosening due to vibration during processing, which affects the clamping effect.

[0130] Furthermore, two support pins with the same structure as the threaded support pins are arranged in the horizontal direction at the bottom of the tooling body 301 for supporting the two horizontal wheel mounting seats 101 of the frame 100 in the horizontal direction.

[0131] When in use, the end clamping seat 303 clamps the end body, and the bottom support seat 306 supports the two horizontal wheel mounting seats 101 of the frame 100, thereby completing the clamping of the frame 100, avoiding multiple adjustments to the position of the frame 100 during processing, and improving the processing accuracy of the frame 100.

[0132] In order to optimize the above technical solution, the pressing assembly 309 includes a mounting shell 3091, a third pressure plate 3092, a third position locking nut 3093, a support beam 3094 and a lifting pin 3095. The mounting shell 3091 is connected to the tooling body 301. The third position locking nut 3093 is used to connect the third pressure plate 3092 and the mounting shell 3091. The support beam 3094 is arranged perpendicular to the tooling body 301 and connected to the tooling body 301. The lifting pin 3095 is arranged perpendicular to the support beam 3094 and connected to the support beam 3094, and is used to support the horizontal wheel mounting seat 101 of the frame 100. Specifically, the assembly method of the third pressure plate 3092 and the third position locking nut 3093 is the same as the assembly method of the second pressure plate 3031 and the adjusting nut 3033. The pressing pin 3095 and the support beam 3094 are used to support the two horizontal wheel mounting seats 101 of the frame 100. There are two clamping assemblies 309, which are symmetrically arranged on the top of the tooling body 301.

[0133] When in use, the third pressure plate 3092 cooperates with the third position locking nut 3093 to press the horizontal wheel mounting seat 101, and the lifting pin 3095 presses the horizontal wheel mounting seat 101 from bottom to top, further clamping the frame 100, avoiding multiple adjustments to the position of the frame 100 during processing, thereby improving the processing accuracy of the frame 100.

[0134] The present invention also discloses a frame processing method, which uses any of the above-mentioned monorail train bogie frame clamping devices, comprising:

[0135] Step S1: Frame marking. The frame 100 is placed on the marking machine platform. The longitudinal centerline A of the frame 100 is determined using the inner surface of the horizontal wheel mounting base 101 and the side surface of the frame 100 as references. The transverse centerline B of the frame 100 is determined using the large hole 104 of the frame 100, the inner surface of the central pulling device 105, and the air spring surface 102 as references. The axle centerline C of the frame 100 is determined using the axle mounting hole 106 and the air spring surface 102 as references.

[0136] Step S2: One-step clamping, placing the frame 100 on the one-step processing and clamping device 200, and the one-step processing and clamping device 200 clamps the frame 100;

[0137] Step S3: One-step processing, processing four two-step processing reference blocks on the frame 100 to ensure the flatness is ≤ 0.5 mm, and using a vertical machining center to process the frame 100;

[0138] Step S4: Two-step clamping: The frame 100 is placed on the two-step processing clamping device 300. The planes of the four process reference blocks are used as reference planes. The position of the frame 100 is adjusted according to the axle centerline C, the transverse centerline B, and the longitudinal centerline A. The two-step processing clamping device 300 clamps the frame 100.

[0139] Step S5: Second step processing, using a horizontal machining center to perform final processing on the frame 100.

[0140] In order to optimize the above technical solution, step S2 further includes: one step of processing the pressing group of the clamping device 200 to press the frame 100, one step of processing the middle support seat 202 of the clamping device 200 to support the air spring beam 102 of the frame 100, one step of processing the support assembly 203 of the clamping device 200 to support the end body of the frame 100, and one step of processing the limiting assembly 204 of the clamping device 200 to limit the end body of the frame 100;

[0141] Step S4 also includes: two-step processing of the end clamping seat 303 of the clamping device 300 to clamp the end body of the frame 100, two-step processing of the middle support seat 305 of the clamping device 300 to support the middle body of the frame 100, two-step processing of the bottom support seat 306 of the clamping device 300 to support the horizontal wheel mounting seat 101 of the frame 100, two-step processing of the first support component 307 and the second support component 308 of the clamping device 300 to support the motor seat flange 103 of the frame 100, and two-step processing of the pressing component 309 of the clamping device 300 to press the horizontal wheel mounting seat 101 of the frame 100.

[0142] The frame processing method provided by the present invention has all the technical effects of the above-mentioned monorail train bogie frame clamping device due to the application of the above-mentioned monorail train bogie frame clamping device, and will not be described in detail herein.

[0143] The advantages of the present invention are:

[0144] (1) Improved the processing accuracy of the frame;

[0145] (2) It can realize fast and firm clamping of the frame with high clamping efficiency.

[0146] It should be noted that the monorail train bogie frame clamping device and frame processing method provided by the present invention can be used in the field of frame clamping and processing technology or other fields. Other fields are any fields other than the field of frame clamping and processing technology. The above description is merely illustrative and does not limit the application areas of the monorail train bogie frame clamping device and frame processing method provided by the present invention.

[0147] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0148] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

[0149] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0150] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A monorail train bogie frame clamping device for fixing the frame, characterized in that: It includes a one-step processing and clamping device and a two-step processing and clamping device. The frame is arranged in a horizontal state on the one-step processing and clamping device, and the one-step processing and clamping device is used to complete the position adjustment and clamping of the frame in the horizontal direction. The frame is arranged in a vertical state on the two-step processing and clamping device, and the two-step processing and clamping device is used to complete the position adjustment and clamping of the frame in the vertical direction.

2. The monorail train bogie frame clamping device according to claim 1, characterized in that: The one-step processing clamping device comprises a bottom plate, a pressing group, a middle support seat, a support assembly, a limit assembly, a first box beam and a second box beam, wherein: The clamping group includes a first clamping assembly, a second clamping assembly and a third clamping assembly, wherein the first clamping assembly is connected to the bottom plate and is used to fix the middle body of the frame, the second clamping assembly is arranged on the first box beam and the second box beam and is used to fix the horizontal wheel mounting seat of the frame, and the third clamping assembly is arranged on the first box beam and the second box beam and is used to clamp the end body of the frame; The middle support seat is arranged in the middle of the bottom plate and is used to support the air spring beam of the frame; The support assembly is arranged on the first box beam and the second box beam, and is used to support the end body of the frame; The limiting assembly is arranged on the first box beam and the second box beam, and is used to limit the end body of the frame; The first box beam and the second box beam are symmetrically arranged on the bottom plate.

3. The monorail train bogie frame clamping device according to claim 2, characterized in that: Two or more of the first clamping assemblies are arranged on the bottom plate, one or more of the second clamping assemblies are arranged on the first box girder and / or the second box girder, and one or more of the third clamping assemblies are arranged on the first box girder and / or the second box girder.

4. The monorail train bogie frame clamping device according to claim 3, characterized in that: The first clamping assembly includes a support rod, a height adjustment nut, a clamping rod, a locking nut, a first clamping plate and a flange nut, wherein: The first pressing plate is provided with a strip-shaped through hole, and the first pressing plate is used to press the frame; The first end of the support rod is connected to the bottom plate, and the second end of the support rod is connected to the strip-shaped through hole; The first end of the pressing rod is connected to the bottom plate, and the second end of the pressing rod is connected to the strip-shaped through hole; The height adjustment nut is used to connect the second end of the support rod and the first pressing plate; The locking nut is used to connect the first end of the pressing rod and the first pressing plate; The flange nut is used to connect the second end of the clamping rod and the first clamping plate; The first clamping assembly, the second clamping assembly and the third clamping assembly have the same structure.

5. The monorail train bogie frame clamping device according to claim 4, characterized in that: The middle support seat comprises a first round steel and a first steel plate, the first steel plate is connected to the bottom plate, the axis of the first round steel is arranged perpendicular to the first steel plate, the first round steel is connected to the first steel plate, and the number of the middle support seats is two, and they are symmetrically arranged on the bottom plate; The support assembly comprises a second round steel and a second steel plate, the axis of the second round steel is arranged perpendicular to the second steel plate, the second round steel is connected to the second steel plate, a jacking bolt and a first position locking nut are arranged on the top of the second round steel, the jacking bolt and the first position locking nut cooperate to adjust the height of the support assembly; The limiting assembly includes a T-shaped fixing plate, a locking bolt and a second position locking nut. The T-shaped fixing plate is used to connect the locking bolt. The locking bolt and the second position locking nut cooperate to limit the end body of the frame.

6. The monorail train bogie frame clamping device according to claim 1, characterized in that: The two-step processing clamping device includes a tooling body, a first mounting plate, an end clamping seat, a second mounting plate, an intermediate support seat, a bottom support seat, a first support assembly, a second support assembly and a pressing assembly, wherein: The tooling body includes a base, and the base is connected to a machine tool workbench for processing the frame; The first mounting plate is connected to the tooling body, and the end clamping seat is connected to the first mounting plate and is used to clamp the end body of the frame; The second mounting plate is connected to the tooling body, and the intermediate support seat is arranged perpendicular to the second mounting plate and is used to support the middle body of the frame; The bottom support seat is connected to the base and is used to support the horizontal wheel mounting seat of the frame; The first end of the first supporting assembly and the first end of the second supporting assembly are connected to the base The second end of the first support assembly and the second end of the second support assembly are connected to support the motor seat flange of the frame; The pressing assembly is connected to the tooling body and is used to press the horizontal wheel mounting seat of the frame.

7. The monorail train bogie frame clamping device according to claim 6, characterized in that: The end clamping seat comprises a second pressing plate, a limiting pin, an adjusting nut and a fixing plate, wherein the fixing plate is used to connect the first mounting plate and the second pressing plate, the limiting pin is connected to the fixing plate and is used to limit the end of the frame in the transverse direction, and the adjusting nut is connected to the second pressing plate and is used to limit the end of the frame in the longitudinal direction; The bottom support seat includes a support column and a threaded support pin, the support column is connected to the base, and the threaded support pin is connected to the top of the support column.

8. The monorail train bogie frame clamping device according to claim 6, characterized in that: The pressing assembly includes a mounting shell, a third pressure plate, a third position locking nut, a support beam and a lifting pin. The mounting shell is connected to the tooling body. The third position locking nut is used to connect the third pressure plate and the mounting shell. The support beam is arranged perpendicular to the tooling body and connected to the tooling body. The lifting pin is arranged perpendicular to the support beam and connected to the support beam, and is used to support the horizontal wheel mounting seat of the frame.

9. A frame processing method, using the monorail train bogie frame clamping device according to any one of claims 1 to 8, characterized in that: include: Step S1: marking the frame, placing the frame on the marking machine platform, determining the longitudinal center line of the frame based on the inner side of the horizontal wheel mounting seat and the side of the frame, determining the transverse center line of the frame based on the large hole of the frame, the inner surface of the central traction device and the air spring surface, and determining the axle center line of the frame based on the axle mounting hole and the air spring surface; Step S2: one-step clamping, placing the frame on a one-step processing and clamping device, and the one-step processing and clamping device clamps the frame; Step S3: one-step processing, processing four two-step processing reference blocks on the frame to ensure that the flatness is ≤ 0.5 mm, and using a vertical machining center to process the frame; Step S4: two-step clamping, placing the frame on a two-step processing clamping device, taking the planes of the four process reference blocks as reference planes, adjusting the position of the frame according to the axle center line, the transverse center line and the longitudinal center line, and the two-step processing clamping device clamps the frame; Step S5: two-step processing, using a horizontal machining center to perform final processing on the frame.

10. The frame processing method according to claim 9, characterized in that: The step S2 further comprises: the pressing group of the one-step processing clamping device presses the frame, the middle support seat of the one-step processing clamping device supports the air spring beam of the frame, the supporting assembly of the one-step processing clamping device supports the end body of the frame, and the limiting assembly of the one-step processing clamping device limits the end body of the frame; The step S4 also includes: the end clamping seat of the two-step processing clamping device clamps the end body of the frame, the middle support seat of the two-step processing clamping device supports the middle body of the frame, the bottom support seat of the two-step processing clamping device supports the horizontal wheel mounting seat of the frame, the first support assembly and the second support assembly of the two-step processing clamping device support the motor seat flange of the frame, and the pressing assembly of the two-step processing clamping device presses the horizontal wheel mounting seat of the frame.

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