Titanium alloy bogie beam forming device and forming method

Abstract

The application discloses a titanium alloy bogie beam forming device and forming method, the forming device comprises a platform; a guide rail is arranged along the Y-axis direction; supports are distributed along the length direction of the platform; support platforms are symmetrically distributed on both sides of the supports and are slidably connected with the platform through the guide rail; a centering and jacking device is fixedly connected with the support, and both ends of the centering and jacking device can abut against and contact the bottom end of the B surface of the beam; a supporting device is arranged above the centering and jacking device, and both ends of the supporting device can abut against and contact the top end of the B surface of the beam; a plurality of beam jacking devices are arranged on the support platform and are distributed on the A end, the B end and the A surface of the beam; a beam pressing device is arranged on the A surface side of the beam and is arranged on the support platform; a longitudinal beam pressing device is arranged on the C surface side of the small longitudinal beam and is arranged on the support; a plurality of longitudinal beam jacking devices are distributed on both sides of the small longitudinal beam and are arranged on the support and the longitudinal beam pressing device, and the application has the effects of accurate positioning, high precision and improved product quality.

Description

Technical Field

[0001] This invention relates to the field of tooling technology for assembling bogie components for rail transit vehicles, and particularly to a titanium alloy bogie crossbeam forming device and forming method. Background Technology

[0002] The titanium alloy frame (bogie) project is a research and development project for new materials and structures. The interfaces of the main beam structure are full butt welds with backing plates, requiring a large amount of welding. Furthermore, the slow heat dissipation of titanium alloy during welding makes the titanium alloy welded structure prone to deformation. The crossbeam assembly also requires reprocessing of the square openings after welding, with a processing allowance of only 2.5mm. If the titanium alloy crossbeams have dimensional deviations, they cannot be adjusted using methods suitable for ordinary carbon steel because titanium alloy is easily oxidized by atmospheric heat, rendering them unusable. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a titanium alloy bogie crossbeam forming device to solve the problem that the dimensions of the frame crossbeam are out of tolerance after welding, and cannot be adjusted, which leads to the inability to guarantee the processing dimensions, affects product quality and increases the labor intensity of workers.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention discloses a titanium alloy bogie crossbeam forming device, comprising:

[0006] The platform has guide rails installed along the Y-axis.

[0007] Supports, distributed along the length of the platform, are used to support small longitudinal beams;

[0008] A support platform, symmetrically distributed on both sides of the support and slidably connected to the platform via the guide rail, is used to support the displacement of the crossbeam along the Y-axis toward the end of the small longitudinal beam;

[0009] The centering and tightening device is fixedly connected to the support. Both ends of the centering and tightening device can abut against the bottom end of the B side of the crossbeam so that the two crossbeams are aligned with the center of the centering and tightening device.

[0010] A support device is arranged above the centering and tightening device, and both ends of the support device can abut against the top of the B side of the crossbeam;

[0011] Multiple beam clamping devices are installed on the support platform and distributed at the A end, B end, and A surface of the beam to adjust the relative position of the beam on the support platform along the X and Y axes.

[0012] A beam clamping device is arranged on the A-side of the beam and installed on the support platform to clamp the beam from above, thereby achieving Z-axis positioning of the beam.

[0013] A longitudinal beam clamping device is provided, wherein the support is located on the C-side of the small longitudinal beam and the longitudinal beam clamping device is installed so as to clamp the crossbeam from above the small longitudinal beam and realize the Z-axis positioning of the small longitudinal beam;

[0014] Multiple longitudinal beam clamping devices are distributed on both sides of the small longitudinal beam and installed on the support and the longitudinal beam clamping device to adjust the relative position of the small longitudinal beam on the support along the X-axis.

[0015] Furthermore, the longitudinal beam clamping device located on the B-side of the small longitudinal beam is equipped with a longitudinal beam centering screw so that the Y-axis can adjust the relative position of the small longitudinal beam on the support.

[0016] Furthermore, both the centering and tightening device and the supporting device are rod-shaped structures that can extend or retract along the Y-axis, so that they are supported vertically and symmetrically with respect to the X-axis between the two crossbeams.

[0017] Furthermore, positioning and tightening devices are arranged on both sides of the platform between the two guide rails to position the relative position between the support platform and the platform.

[0018] Furthermore, the screw end of the crossbeam tightening device is equipped with a positioning block, which abuts against the B end of the crossbeam to make the end faces of the two crossbeams B end coplanar and avoid misalignment.

[0019] Furthermore, the support platform is equipped with anti-deformation devices at both ends A and B of the crossbeam;

[0020] The anti-deformation device is equipped with a U-shaped clamping plate that can be displaced along the Y-axis, and the clamping plate engages with the end of the crossbeam.

[0021] Furthermore, the lead screw is installed in the centering and tightening device, the crossbeam tightening device, the crossbeam pressing device, the longitudinal beam pressing device, and the longitudinal beam tightening device, and is used to apply tightening or pressing force.

[0022] This invention discloses a method for forming titanium alloy bogie crossbeams, which uses the aforementioned titanium alloy bogie crossbeam forming apparatus to synthesize titanium alloy bogie crossbeams. The method includes:

[0023] Step S1: Material preparation:

[0024] Two small longitudinal beams and two transverse beams, with welded joints formed at both ends of the B side of the transverse beams. The inner wall of the welded joints is welded with a lining plate. When assembled, the gap between the welds is 3-5mm.

[0025] Step S2: Position the small longitudinal beam:

[0026] Place the small longitudinal beam on the support, and use the lead screw of the longitudinal beam clamping device and the longitudinal beam pressing device to first position and clamp the two small longitudinal beams in the X, Y, and Z directions;

[0027] Step S3: Position the crossbeam along the Y-axis:

[0028] Place the two crossbeams on the support platform respectively, and push the support platform to move along the guide rail so that the crossbeams are close to the end of the small longitudinal beam. The end of the small longitudinal beam is inserted into the liner of the crossbeam. When the assembly gap is 3-5mm, firstly, use the positioning and tightening device to position the support platform, and secondly, use the crossbeam tightening device on the A side of the crossbeam to fix the Y-axis dimension of the crossbeam.

[0029] Step S4: Position the crossbeam along the X-axis:

[0030] Adjust the screw of the crossbeam clamping device at end A of the crossbeam to move the crossbeam towards end B along the X-axis. After end B of the crossbeam abuts against the positioning block, the X-axis dimension of the crossbeam is fixed by the crossbeam clamping devices at both ends of the crossbeam.

[0031] Step S5: Position the crossbeam along the Z-axis;

[0032] The beam is pressed down from above using the beam clamping device to fix the Z-axis dimension of the beam.

[0033] Further, step S3.1: Position the crossbeam along the Y-axis and prevent deformation of the crossbeam;

[0034] First, the centering rods at both ends of the centering and tightening device are simultaneously brought into contact with the bottom ends of the two crossbeams on the B side. Second, the two support devices are placed on the upper part of the crossbeams, and the support blocks of the support devices are brought into contact with the top ends of the crossbeams on the B side.

[0035] Further, in step S3.2: after the crossbeam is positioned in the Y direction, the clamping plate of the anti-deformation device engages with the end of the crossbeam to limit the end of the crossbeam in the Y direction and prevent the crossbeam from shrinking and deforming during fixation.

[0036] In the above technical solution, the titanium alloy bogie crossbeam forming device and forming method provided by the present invention have the following advantages:

[0037] 1) Ensure accurate and high-precision workpiece positioning to improve the quality of finished parts;

[0038] 2) The design of the support platform, which can be pushed, for the crossbeams and small longitudinal beams, as well as the adjustable anti-deformation device at the end of the crossbeam, improves the overall flatness of the welded parts, reduces the labor intensity of workers who need to make a lot of adjustments, reduces working hours, and improves production efficiency.

[0039] 3) During welding, add crossbeam clamping devices and longitudinal beam clamping devices to ensure reliable and safe workpiece clamping and prevent welding deformation. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0041] Figure 1 This is an axonometric drawing of the crossbeam of a titanium alloy bogie in the existing technology;

[0042] Figure 2 This is a top view of the crossbeam of a titanium alloy bogie in the existing technology;

[0043] Figure 3 This is an isometric view of a titanium alloy bogie crossbeam forming device disclosed in this invention;

[0044] Figure 4 This is an isometric view of a titanium alloy bogie crossbeam forming device disclosed in this invention, showing the state after removing the small longitudinal beams and crossbeams.

[0045] Figure 5 This is a front view of a titanium alloy bogie crossbeam forming device disclosed in this invention;

[0046] Figure 6 This is a cross-sectional view (AA) of a titanium alloy bogie crossbeam forming device disclosed in this invention.

[0047] Figure 7 This is a top view of a titanium alloy bogie crossbeam forming device disclosed in this invention;

[0048] Figure 8 This is a top view of a titanium alloy bogie crossbeam forming device disclosed in this invention, showing the state after removing the small longitudinal beams and crossbeams.

[0049] Figure 9 This is an isometric view of a support platform for a titanium alloy bogie crossbeam forming device disclosed in this invention;

[0050] Figure 10This is an isometric view of the centering and tightening device of the titanium alloy bogie crossbeam forming device disclosed in this invention;

[0051] Figure 11 This is an isometric view of a support device for a titanium alloy bogie crossbeam forming device disclosed in this invention;

[0052] Figure 12 This is an isometric view of a titanium alloy bogie crossbeam forming device and a crossbeam clamping device disclosed in this invention;

[0053] Figure 13 This is a partial isometric view of the position of the small longitudinal beam in a titanium alloy bogie crossbeam forming device disclosed in this invention;

[0054] Figure 14 This is a partial isometric view of the small longitudinal beam position of a titanium alloy bogie crossbeam forming device disclosed in this invention.

[0055] Explanation of reference numerals in the attached figures:

[0056] Platform 1; Guide rail 1-1; Positioning and clamping device 1-2; Lead screw 1-2-1; Central column 1-3; Positioner connecting plate 1-4;

[0057] Support 2;

[0058] Support platform 3;

[0059] Centering and tightening device 4; centering base 4-1; centering push rod 4-2; handle 4-3;

[0060] Support device 5; Support block 5-1;

[0061] 6. Crossbeam clamping device; 6-1. Lead screw; 6-2. Positioning block;

[0062] 7. Crossbeam clamping device; 7-1. Pressure arm; 7-2. Lead screw; 7-3. First limiting plate;

[0063] Longitudinal beam clamping device 8; pressure arm 8-1; lead screw 8-2;

[0064] Longitudinal beam tightening device 9; positioning plate 9-1; lead screw 9-1-1; connecting plate 9-2; lead screw 9-2-1; lead screw 9-3;

[0065] Anti-deformation device 10; positioning column 10-1; lead screw 10-2; clamping plate 10-3;

[0066] Support rod 11;

[0067] 100mm crossbeam;

[0068] Longitudinal beam 200. Detailed Implementation

[0069] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0070] See Figure 3 , 4 As shown in Figure 5;

[0071] An invention relates to a titanium alloy bogie crossbeam forming device, comprising:

[0072] Platform 1; it is equipped with guide rail 1-1 along the Y-axis. Specifically, both ends of the platform 1 can be fixed to the positioner connection plate 1-4, and the positioner is connected to the positioner through the positioner connection plate 1-4.

[0073] Support 2, which is distributed along the length of platform 1, is used to support small longitudinal beams 200. There are four supports 2, which are spaced apart in the middle of platform 1. The supports 2 provide installation points on platform 1 for centering and tightening device 4, longitudinal beam pressing device 8, longitudinal beam tightening device 9, and anti-deformation device 10.

[0074] Support platform 3, symmetrically distributed on both sides of support 2 and slidably connected to platform 1 via guide rail 1-1, is used to support the displacement of crossbeam 100 along the Y-axis toward the end of small longitudinal beam 200; wherein, support rods 11 supporting small longitudinal beam 200 and crossbeam 100 are evenly distributed on the upper surface of support 2 and support platform 3, and the support rods 11 are threadedly connected to support 2 and support platform 3. The support rods 11 can be hexagonal head bolts, and the tops of several support rods 11 are coplanar, forming a positioning base surface for supporting small longitudinal beam 200 and crossbeam 100. In this structure, the support rods 11 contact the lower surface of crossbeam 100 and longitudinal beam 200 at multiple points;

[0075] The centering and tightening device 4 is fixedly connected to the support 2. Both ends of the centering and tightening device 4 can abut against the bottom end of the B surface of the crossbeam 100 so that the two crossbeams 100 are aligned with the center of the centering and tightening device 4. At the same time, the centering and tightening device 4 can also prevent the crossbeams 100 from deforming when tack-fixed.

[0076] The support device 5 is arranged above the centering and tightening device 4. Both ends of the support device 5 can abut against the top of the B surface of the crossbeam 100. Similarly, the support device 5 can also prevent the crossbeam 100 from deforming during tack fixing.

[0077] Multiple beam clamping devices 6 are installed on the support platform 3 and distributed at ends A, B, and surface A of the beam 100 to adjust the relative position of the beam 100 on the support platform 3 along the X and Y axes. Each beam clamping device 6 includes a clamping support and a lead screw 6-1. The bottom end of the clamping support is fixedly connected to the support platform 3, and the top end of the clamping support is helically connected to the lead screw 6-1, which contacts the beam 100 (e.g., ...). Figure 7 ,8 (as shown in Figure 9).

[0078] A beam clamping device 7 is positioned on the A-side of the beam 100 and mounted on the support platform 3 to clamp the beam 100 from above, thus achieving Z-axis positioning of the beam 100. The beam clamping device 7 includes a base and a pressure arm 7-1 rotatably connected to the base. A first limiting plate 7-3 is rotatably connected to one side of the pressure arm 7-1, and a second limiting plate is fixed to the other side. In use, the first limiting plate 7-3 engages with a positioning groove, limiting the pressure arm 7-1 between the first and second limiting plates, preventing rotation of the pressure arm 7-1. A lead screw 7-2 is helically connected to the top of the pressure arm 7-1 along the vertical axis, clamping the beam 100 via the lead screw 7-2 to achieve Z-axis positioning of the beam 100 (e.g., ...). Figure 9 , 12 (as shown)

[0079] The longitudinal beam clamping device 8 is installed on the side of the small longitudinal beam 200C, with the support 2 positioned on the C-side of the small longitudinal beam 200. This clamps the crossbeam 100 above the small longitudinal beam 200, thus positioning the small longitudinal beam 200 along the Z-axis. To ensure the versatility of the tooling structure, the longitudinal beam clamping device 8 is structurally similar to the crossbeam clamping device 7, except that the clamping arm 8-1 of the longitudinal beam clamping device 8 is connected to screw rods 9-3 on both sides via a screw drive. These screw rods 9-3 contact the C-side of the small longitudinal beam 200, thereby limiting the small longitudinal beam 200 along the X-axis (e.g., ...). Figure 13 , 14 (as shown)

[0080] Multiple longitudinal beam clamping devices 9 are distributed on both sides of the small longitudinal beam 200 and installed on the support 2 and the longitudinal beam clamping device 8 to adjust the relative position of the small longitudinal beam 200 on the support 2 along the X-axis. Specifically, the longitudinal beam clamping device 9 includes a clamping base, a positioning plate 9-1, and lead screws 9-1-1 and 9-3 (e.g., Figure 14 (as shown)

[0081] Platform 1 is fixed to the support 2 at the position of the small longitudinal beam 200 with a tightening base. The top of the tightening base is fixed to the positioning plate 9-1. The positioning plate 9-1 is fixed to both ends of the Y-axis with screw rods 9-1-1. The screw rods 9-1-1 contact the D surface of the small longitudinal beam 200. The screw rods 9-3 are screwed to the pressure arm 8-1 of the longitudinal beam clamping device 8. The screw rods 9-3 contact the C surface of the small longitudinal beam 200, thereby limiting the small longitudinal beam 200 in both positive and negative X-axis directions.

[0082] Preferably, the longitudinal beam clamping device 9 on the B-side of the small longitudinal beam 200 is equipped with a screw rod for centering the longitudinal beam 200, so as to adjust the relative position of the small longitudinal beam 200 on the support 2 by the Y-axis.

[0083] For details, see Figure 14As shown, the longitudinal beam clamping device 9 includes a positioning plate 9-1, with screw rods 9-1-1 screwed at both ends of the positioning plate 9-1. The screw rods 9-1-1 clamp the small longitudinal beam 200D surface. A connecting plate 9-2 is fixedly connected to the middle of the positioning plate 9-1 on both sides of the stiffener of the small longitudinal beam 200. The end of the connecting plate 9-2 is screwed with a screw rod 9-2-1 that can center the small longitudinal beam 200. That is, the position of the small longitudinal beam 200 can be adjusted along the Y-axis by adjusting the screw rod 9-2-1.

[0084] Preferably, both the centering and tightening device 4 and the supporting device 5 are rod-shaped structures that can extend or retract along the Y-axis, so that they are supported vertically and symmetrically with respect to the X-axis between the two crossbeams 100.

[0085] For details, see Figure 10 As shown, the centering and tightening device 4 includes a centering base 4-1 fixedly connected to the support 2. A lead screw is installed inside the centering base 4-1, and a handle 4-3 for driving the lead screw to rotate is fixedly connected to the outside of the centering base 4-1. By turning the handle 4-3, the lead screw is driven to rotate, and the centering rods 4-2 at both ends of the centering base 4-1 are extended or retracted through the lead screw, thereby tightening the two crossbeams 100.

[0086] See Figure 11 As shown, the support device 5 includes a support screw, and support blocks 5-1 are screwed at both ends of the support screw. The support blocks 5-1 abut against the crossbeam 100. In use, the support screw is driven to rotate by an auxiliary wrench, which causes the support blocks 5-1 to extend and press against the two crossbeams 100.

[0087] Preferably, positioning and tightening devices 1-2 are arranged on both sides of the platform 1 between the two guide rails 1-1 to position the relative position between the support platform 3 and the platform 1.

[0088] For details, see Figure 4 , 6 As shown, the positioning and tightening device 1-2 includes a tightening support and a screw 1-2-1 that is screwed to the tightening support. The screw 1-2-1 abuts against the side of the support platform 3 to position the relative position between the support platform 3 and the platform 1, thus preventing the support platform 3 from shifting along the Y-axis.

[0089] The platform 1 is also equipped with four central columns 1-3 around its circumference. The central columns 1-3 are arranged in pairs and are fixed to the two ends and the center of both sides of the platform 1 respectively. When the dimension detection device is fixed to the top of the central column 1-3, the detection surface of the dimension detection device is the horizontal center plane and the vertical center plane of the platform 1.

[0090] Preferably, the end of the lead screw of the crossbeam tightening device 6 is equipped with a positioning block 6-2, which abuts against the end of the crossbeam 100B to make the end faces of the two crossbeams 100B coplanar and avoid misalignment.

[0091] For details, see Figure 9 As shown, the beam clamping device 6 at the end of the beam 100B is used as the positioning reference. The beam clamping device 6 includes a clamping support and a screw 6-1 that is screwed to the clamping support. The end of the screw 6-1 is rotatably connected to a U-shaped positioning block 6-2. The positioning block 6-2 abuts against the end face of the beam 100B. In use, the two positioning blocks 6-2 are first leveled so that the two positioning blocks 6-2 are coplanar. This makes it easier for the two beams 100 to abut against each other when they are aligned, so as to achieve the purpose of coplanarity and avoid misalignment.

[0092] Preferably, the support platform 3 is equipped with anti-deformation devices 10 at both ends A and B of the crossbeam 100;

[0093] The anti-deformation device 10 is equipped with a U-shaped clamping plate 10-3 that can be displaced along the Y-axis and is engaged with the end of the crossbeam 100.

[0094] For details, see Figure 13 As shown, the anti-deformation device 10 includes a positioning post 10-1 and a lead screw 10-2. The lead screw 10-2 is screwed to the top of the positioning post 10-1. A clamping plate 10-3 is rotatably connected to the end of the lead screw 10-2. The clamping plate 10-3 has a U-shaped structure and engages with the end of the crossbeam 100 to prevent deformation of the crossbeam 100 during welding.

[0095] Preferably, the lead screw, the centering and tightening device 4, the crossbeam tightening device 6, the crossbeam pressing device 7, the longitudinal beam pressing device 8, and the longitudinal beam tightening device 9 are all equipped with lead screws for applying tightening or pressing forces. The end of the lead screw can contact the surface of the crossbeam 100 or the small longitudinal beam 200 through a pressure block.

[0096] A method for forming a titanium alloy bogie crossbeam is disclosed, which utilizes the aforementioned titanium alloy bogie crossbeam forming apparatus to synthesize a titanium alloy bogie crossbeam. The method includes:

[0097] Step S1: Material preparation:

[0098] Two small longitudinal beams 200 and two transverse beams 100. Both ends of the B-side of the transverse beams 100 have welded joints 300. The inner wall of each welded joint 300 is welded with a backing plate. During assembly, the weld seam gap is 3-5mm, specifically 4mm (e.g., ...). Figure 2 (as shown)

[0099] Step S2: Position the small longitudinal beam 200:

[0100] Place the small longitudinal beam 200 on the support 2, and use the screws of the longitudinal beam tightening device 9 and the longitudinal beam pressing device 8 to first position and tighten the two small longitudinal beams 200 in the X, Y and Z directions;

[0101] Specifically, the spacing between the two small longitudinal beams 200 is arranged on the support 2 according to the parameters specified in the technical requirements. The small longitudinal beams 200 are tightened by the lead screws 9-1-1 and 9-3 of the longitudinal beam tightening device 9, thereby limiting the small longitudinal beams 200 in both positive and negative X-axis directions. The small longitudinal beams 200 are also limited in both positive and negative Y-axis directions by the lead screw 9-2-1 on the connecting plate 9-2 on the D-side of the longitudinal beam. The pressure arm 8-1 of the longitudinal beam clamping device 8 is rotated to the top of the small longitudinal beams 200, and the small longitudinal beams 200 are tightened by the lead screw 8-2 on the pressure arm 8-1, thereby limiting the small longitudinal beams 200 in the Z-axis direction (see...). Figure 3 , 13 (as shown in Figure 14).

[0102] Step S3: Position the crossbeam 100 along the Y-axis.

[0103] Place the two crossbeams 100 on the support platform 3 respectively, and push the support platform 3 to move along the guide rail 1-1 so that the crossbeam 100 is close to the end of the small longitudinal beam 200. The end of the small longitudinal beam 200 is inserted into the liner of the crossbeam 100. When the assembly gap is 3-5mm, firstly, use the positioning and tightening device 1-2 to position the support platform 3, and secondly, use the crossbeam tightening device 6 on the A side of the crossbeam 100 to fix the Y-direction dimension of the crossbeam 100.

[0104] Specifically, in this step, after pushing the support platform 3 to bring the crossbeam 100 closer to the end of the small longitudinal beam 200, firstly, the position of the support platform 3 is positioned by the positioning and tightening devices 1-2 on the platform 1. Secondly, the crossbeam tightening device 6 corresponding to the A surface of the crossbeam 100 on the support platform 3 is used to fix the Y-axis dimension of the crossbeam 100 (see...). Figure 6 (as shown)

[0105] Step S4: X-axis positioning beam 100:

[0106] Adjust the screw of the beam clamping device 6 at end A of the beam 100 to move the beam 100 along the X-axis toward end B. After end B of the beam 100 abuts against the positioning block 6-2, the beam clamping devices 6 at both ends of the beam 100 are used to fix the X-axis dimension of the beam 100 (see...). Figure 7 , 9 (as shown)

[0107] Step S5: Position the crossbeam 100 along the Z-axis;

[0108] The beam clamping device 7 is used to clamp the beam 100 from above, fixing the Z-axis dimension of the beam 100 (see...). Figure 6 , 9 (as shown)

[0109] Preferably, step S3.1: Position the crossbeam 100 along the Y-axis and prevent the crossbeam 100 from deforming;

[0110] First, the centering rods 4-2 at both ends of the centering and tightening device 4 simultaneously abut against the bottom ends of the two crossbeams 100B. Second, the two support devices 5 are placed on the upper part of the crossbeams 100, and the support blocks 5-1 of the support devices 5 abut against the top ends of the crossbeams 100B (see...). Figure 7 , 8 (As shown).

[0111] Preferably, in step S3.1.1: after the crossbeam 100 is positioned in the Y direction, the clamping plate 10-3 of the anti-deformation device 10 engages with the end of the crossbeam 100, limiting the end of the crossbeam 100 in the Y direction to prevent the crossbeam 100 from shrinking and deforming during tack fixing (e.g., Figure 10 (As shown).

[0112] In the above technical solution, the titanium alloy bogie crossbeam forming device and forming method provided by the present invention have the following advantages:

[0113] 1) Ensure accurate and high-precision workpiece positioning to improve the quality of finished parts;

[0114] 2) The design of the support platform, which can be pushed, for the crossbeams and small longitudinal beams, as well as the adjustable anti-deformation device at the end of the crossbeam, improves the overall flatness of the welded parts, reduces the labor intensity of workers who need to make a lot of adjustments, reduces working hours, and improves production efficiency.

[0115] 3) During welding, add crossbeam clamping devices and longitudinal beam clamping devices to ensure reliable and safe workpiece clamping and prevent welding deformation.

[0116] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A titanium alloy bogie crossbeam forming device, characterized in that, include: Platform (1); a guide rail (1-1) is installed along the Y-axis. Supports (2), which are distributed along the length of the platform (1), are used to support small longitudinal beams (200). The support platform (3) is symmetrically distributed on both sides of the support (2) and slidably connected to the platform (1) through the guide rail (1-1) to support the displacement of the crossbeam (100) along the Y axis toward the end of the small longitudinal beam (200); The centering and tightening device (4) is fixedly connected to the support (2). Both ends of the centering and tightening device (4) can abut against the bottom end of the B side of the crossbeam (100) so that the two crossbeams (100) are centered relative to the centering and tightening device (4). The support device (5) is arranged above the centering and tightening device (4), and both ends of the support device (5) can abut against the top of the B side of the crossbeam (100); Multiple beam clamping devices (6) are installed on the support platform (3) and distributed on the A end, B end and A surface of the beam (100) to adjust the relative position of the beam (100) on the support platform (3) along the X axis and Y axis; A beam clamping device (7) is arranged on the A-side of the beam (100) and installed on the support platform (3) so as to clamp the beam (100) from above and realize the Z-axis positioning of the beam (100). The longitudinal beam clamping device (8) is installed on the support (2) on the C-side of the small longitudinal beam (200) so as to clamp the crossbeam (100) from above the small longitudinal beam (200) and realize the Z-axis positioning of the small longitudinal beam (200). Multiple longitudinal beam clamping devices (9) are distributed on both sides of the small longitudinal beam (200) and installed on the support (2) and the longitudinal beam clamping device (8) to adjust the relative position of the small longitudinal beam (200) on the support (2) along the X-axis.

2. The titanium alloy bogie crossbeam forming device according to claim 1, characterized in that... ； The longitudinal beam clamping device (9) located on the B side of the small longitudinal beam (200) is equipped with a screw rod for centering the longitudinal beam (200) so that the relative position of the small longitudinal beam (200) on the support (2) can be adjusted by the Y axis.

3. The titanium alloy bogie crossbeam forming device according to claim 2, Its characteristics are: Both the centering and tightening device (4) and the supporting device (5) are rod-shaped structures that can extend or retract along the Y-axis, so that they are supported vertically and symmetrically with respect to the X-axis between the two crossbeams (100) by the centering and tightening device (4) and the supporting device (5).

4. The titanium alloy bogie crossbeam forming device according to claim 3, characterized in that... ； The platform (1) is provided with positioning and tightening devices (1-2) on both sides between the two guide rails (1-1) for positioning the relative position between the support platform (3) and the platform (1).

5. The titanium alloy bogie crossbeam forming device according to claim 4, characterized in that; The end of the lead screw of the beam clamping device (6) is equipped with a positioning block (6-2). The positioning block (6-2) abuts against the B end of the beam (100) so that the end faces of the two beams (100) B ends are coplanar, thus avoiding misalignment.

6. The titanium alloy bogie crossbeam forming device according to claim 5, Its characteristics are: The support platform (3) is equipped with anti-deformation devices (10) at both ends A and B of the crossbeam (100). The anti-deformation device (10) is equipped with a clamping plate (10-3) that can be displaced along the Y-axis and has a U-shaped structure, and the clamping plate (10-3) engages with the end of the crossbeam (100).

7. A titanium alloy bogie crossbeam forming device according to claim 6, Its characteristics are: The centering and tightening device (4), the crossbeam tightening device (6), the crossbeam pressing device (7), the longitudinal beam pressing device (8), and the longitudinal beam tightening device (9) are all equipped with screws for applying tightening or pressing forces.

8. A method for forming a titanium alloy bogie crossbeam, characterized in that, Using the titanium alloy bogie crossbeam forming apparatus according to claim 7, a titanium alloy bogie crossbeam is synthesized, the method comprising: Step S1: Material preparation: Two small longitudinal beams (200) and two transverse beams (100), both ends of the B side of the transverse beams (100) are formed with welding joints (300), and the inner wall of the welding joints (300) is welded with a liner plate. When assembled, the gap between the welds is 3-5mm. Step S2: Position the small longitudinal beam (200): Place the small longitudinal beam (200) on the support (2), and use the screw of the longitudinal beam clamping device (9) and the longitudinal beam pressing device (8) to first position and clamp the two small longitudinal beams (200) in the X, Y and Z directions; Step S3: Position the crossbeam (100) along the Y-axis: Place the two crossbeams (100) on the support platform (3) respectively, and push the support platform (3) to move along the guide rail (1-1) so that the crossbeam (100) is close to the end of the small longitudinal beam (200). The end of the small longitudinal beam (200) is inserted into the liner of the crossbeam (100). When the assembly gap is 3-5mm, firstly, the support platform (3) is positioned using the positioning and tightening device (1-2). Secondly, the crossbeam tightening device (6) on the A side of the crossbeam (100) is used to fix the Y-axis dimension of the crossbeam (100). Step S4: Position the crossbeam (100) along the X-axis: Adjust the screw of the beam clamping device (6) at the A end of the beam (100) so that the beam (100) moves along the X axis toward the B end. After the B end of the beam (100) abuts against the positioning block (6-2), the X-axis dimension of the beam (100) is fixed by the beam clamping device (6) at both ends of the beam (100). Step S5: Position the crossbeam (100) along the Z-axis; The crossbeam (100) is pressed from above by the crossbeam pressing device (7) to fix the Z-axis dimension of the crossbeam (100).

9. A method for forming a titanium alloy bogie crossbeam according to claim 8, characterized in that... ； Step S3.1: Position the crossbeam (100) along the Y-axis and prevent deformation of the crossbeam (100); First, the centering rods (4-2) at both ends of the centering and tightening device (4) are simultaneously brought into contact with the bottom of the B side of the two crossbeams (100). Second, the two support devices (5) are placed on the upper part of the crossbeam (100), and the support blocks (5-1) of the support devices (5) are brought into contact with the top of the B side of the crossbeam (100).

10. A method for forming a titanium alloy bogie crossbeam according to claim 8, characterized in that... ； Step S3.2: After the crossbeam (100) is positioned in the Y direction, the clamping plate (10-3) of the anti-deformation device (10) is used to engage with the end of the crossbeam (100) to limit the end of the crossbeam (100) in the Y direction and prevent the crossbeam (100) from shrinking and deforming when it is fixed.

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