Split type motor mounting seat bogie closed type framework adjusting and repairing tool and process method

Abstract

The invention discloses an adjusting and repairing tool for a split type motor mounting seat bogie closed type framework. The adjusting and repairing tool comprises a tool body with a bottom plate. A first positioning column is fixedly connected to the middle of the bottom plate, second positioning columns are fixedly connected to the bottom plate and located at the two ends of the first positioning column, and avoiding grooves are formed between the first positioning column and the second positioning columns; the bottom plate is symmetrically and fixedly connected with stop seats on the two sides of the positioning column; the top ends of the first positioning column and the second positioning column are symmetrically and detachably provided with positioning plates in a staggered mode, the receding groove is blocked, a supporting point is provided for the jack, and then the cold adjustment and repair beam is installed forwards and reversely. The problem that the machining amount of the X-direction space size and the Z-direction space size of four points of the split type motor mounting base on the cross beam cannot be guaranteed is effectively solved, and meanwhile the problems that the machining amount of the cross beam mounting base, the side beam spring base and the end beam cannot be guaranteed at the same time, and cost is wasted due to repeated adjustment and repair are solved.

Description

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[0001] The present invention relates to the technical field of bogie manufacturing, and particularly to a repair tooling and process method for a closed frame of a bogie with a split motor mounting seat. Background Art

[0002] The bogie frame of a certain project has a different structure from that of a conventional urban rail transit Type A vehicle. It adopts a closed structure with an eye-shaped crossbeam and end beams, and the motor suspension is composed of a split mounting seat instead of an integral one. The motor is connected to the four split mounting seats by bolts. Due to welding shrinkage, it is difficult to unify the four-point spatial dimensions of the split mounting seat, and the deformation fluctuates between 3 and 8 mm. It is difficult to ensure the dimensions only by flame repair. At the same time, due to the end beam structure, the freedom of adjustment of the two ends of the side beam is restricted, and there is a linkage relationship between the X-direction dimension of the mounting seat on the crossbeam and the Z-direction dimension of the spring seat on the side beam during the overall alignment of the frame, making it difficult to ensure the machining dimensions of each component. The original repair process method cannot meet the requirements of this frame, resulting in a high unqualified rate during production, and problems such as waste of labor costs, material costs, transportation costs, and a long manufacturing cycle due to repeated repairs;

[0003] In addition, as Figure 9 shown, the existing method for aligning the Z-axis dimension of the frame is to place the frame in an inverted state, place the upper cover plate of the side beam on three center pins, level the plane A of the upper cover plate through the center pins, find the center line B of the frame according to the theoretical dimension L between the upper cover plate and the center line of the frame, and draw the center line B of the frame on the surface of the frame to complete the Z-axis alignment. This alignment method has problems such as mutual interference between components and requires repeated repairs. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects existing in the prior art. First, it solves the problem that the machining amounts of the X-direction and Z-direction spatial dimensions of the four points of the split motor mounting seat on the crossbeam cannot be guaranteed. Second, it solves the problem that the machining amounts of each component of the crossbeam mounting seat, side beam spring seat, and end beam cannot be guaranteed simultaneously, resulting in cost waste due to repeated repairs.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] The repair tooling for the closed frame of a bogie with a split motor mounting seat disclosed by the present invention includes:

[0007] A tooling main body with a bottom plate;

[0008] A first positioning column is fixedly connected to the middle of the bottom plate, and second positioning columns are fixedly connected to both ends of the bottom plate. An avoidance groove is formed between the first positioning column and the second positioning columns to avoid the longitudinal beam of the crossbeam;

[0009] The bottom plate is symmetrically fixed with a stop seat on both sides of the positioning column, and supports the cross beam pipe from the ends of the cross beam;

[0010] The first positioning column and the second positioning column are symmetrically detachably mounted with a positioning plate at the top end in a staggered form, block the avoidance slot, and provide a fulcrum for the jack, thereby enabling the cold adjustment and repair of the cross beam in forward and reverse directions.

[0011] Further, the positioning plate is a one-word plate-shaped body with a thickness, and the first positioning column and the second positioning column are symmetrically provided with a supporting groove at the top end in a staggered form for supporting the positioning plate.

[0012] Further, the positioning plate is a plate-shaped body with an L-shaped structure in cross section, and the positioning plate can be lapped at the top end of the first positioning column and the second positioning column in an inverted form to block the top end of the avoidance slot.

[0013] Further, an upward extending column is formed at the top end of the stop seat away from the side of the positioning column, for limiting the cross beam pipe in the X direction.

[0014] The application is based on the above-mentioned split motor mounting seat bogie closed frame repair tooling repair process, which comprises the following steps:

[0015] The cross beam repair process: the prepared cross beam is placed in reverse and forward directions on the repair tooling, the position is aligned, the mounting seat plate is flame repaired according to the space size of the marking line, then the positioning plate is used in cooperation with the jack, the mounting seat plate is cold repaired to the outside of the cross beam center by the jack, and finally the height of the four corners of the cross beam is hot repaired;

[0016] The frame alignment process: the prepared frame is placed in reverse, the upper plane C and the lower plane D of the cross beam pipe are found, the cross beam pipe center plane E is found according to the cross beam pipe radius size M and N, the frame center line F is found according to the distance O between the cross beam pipe center plane E and the frame center line, and the frame center line F is marked on the surface of the frame to complete the Z-axis alignment.

[0017] The frame repair process: the component marking and repair priority order is determined, the vertical dimensions of the gear box hanger, the motor mounting seat, the traction rod seat, the spring seat, the air spring seat plate, the brake seat, the end beam brake seat group and the brake cylinder hanger are measured, the deviation is marked, and the frame is first flame repaired according to the spring seat, the seats on the end beam and the high repair order of the four corners of the frame, and then the frame is cold repaired by the press.

[0018] The frame marking verification process: the marking machine is used to verify the machining dimensions of each component of the frame.

[0019] Further, the cross beam is repaired in reverse direction, the cross beam pipe is placed on the stop seat, and is close to the Z-direction support side to ensure that the side wall of the connecting seat is vertical.

[0020] Further, the crossbeam is assembled in the correct position, the crossbeam pipe is dropped onto the stop seat, and is close to the Z direction support side, to ensure that the side wall of the connecting seat is vertical.

[0021] Further, in the crossbeam adjustment process, the gap of the four crossbeam pipes dropped onto the stop seat is detected by a plug gauge, the longitudinal beam at the flash gap position is flame adjusted, and the gap is controlled within 1mm.

[0022] Further, in the frame alignment process, the upper cover plate of the side beam is dropped onto three pins, the height gauge is used to measure the two ends of the crossbeam pipe, and the pins are adjusted to find the upper plane C and the lower plane D of the crossbeam pipe.

[0023] Further, in the frame adjustment process, the adjustment of the side beam spring seat is completed before the assembly and welding of the secondary vertical damper of the frame.

[0024] In the above technical solution, the application provides a split motor mounting seat bogie closed frame adjustment tool and process method:

[0025] Firstly, by combining cold adjustment and hot adjustment through the crossbeam adjustment tool, the problem that the X direction and Z direction space dimensions of the four split motor mounting seats on the crossbeam cannot be guaranteed is solved.

[0026] Secondly, by optimizing the frame Z axis alignment method and clearly defining the scribing adjustment sequence of each component, the problem that the crossbeam mounting seat, side beam spring seat and end beam components cannot be simultaneously guaranteed and repeated adjustment causes cost waste is solved.

[0027] In addition, through the process method, the problems of high unqualified rate in the production process, repeated adjustment causing waste of labor cost, material cost, transportation cost and long manufacturing cycle are solved, and a new idea is provided for subsequent bogie frame production and jig design. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the application, and other drawings can be obtained by those skilled in the art based on these drawings.

[0029] Figure 1 Preparation diagram for the reverse assembly state of the adjustment tool crossbeam;

[0030] Figure 2 Working diagram for the reverse assembly state of the adjustment tool crossbeam;

[0031] Figure 3 Preparation diagram for the correct assembly state of the adjustment tool crossbeam;

[0032] Figure 4 is a working schematic diagram of the adjusting and repairing tool crossbeam in the normal state;

[0033] Figure 5 is a schematic diagram of the frame in the normal state;

[0034] Figure 6 is a schematic diagram of the frame in the reverse state;

[0035] Figure 7 is a schematic diagram of the frame Z-axis dimension alignment;

[0036] Figure 8 is a schematic diagram of the prior art frame Z-axis dimension alignment;

[0037] Figure 9 is a frame dimension statistical table.

[0038] Explanation of reference signs:

[0039] 1, tool main body; 101, bottom plate; 102, stop seat; 103, lifting lug; 104, positioning column; 105, positioning plate; 106, positioning column; 107, jack; 108, jack; 109, positioning plate; 110, support column; 111, jack; 112, jack. DETAILED DESCRIPTION

[0040] In order to enable a person skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0041] Figure 1 is a tool preparation state schematic diagram when the adjusting and repairing tool crossbeam is in the reverse state, Figure 3 is a tool preparation state schematic diagram when the adjusting and repairing tool crossbeam is in the normal state.

[0042] The present application is a split type motor mounting seat bogie closed frame adjusting and repairing tool, which is used for adjusting and repairing the frame crossbeam 2. The tool main body 1 of the tool comprises a bottom plate 101.

[0043] The first positioning column 104 is fixedly connected in the middle of the bottom plate 101. The second positioning column 106 is fixedly connected at both ends of the first positioning column 104. The first positioning column 104 and the second positioning column 106 are symmetrically and detachably provided with the positioning plates 105 and 109 at the top ends in a staggered form, so as to block the avoiding groove and provide a fulcrum for the jack, thereby adjusting and repairing the crossbeam 2 in the normal state and the reverse state.

[0044] In use, the positioning plates 105, 109 are removed, the cross beam 2 is placed on the base plate 101, the longitudinal beam 206 is inserted into the tool through the avoiding slot, after being inserted, the positioning plate 105 or the positioning plate 109 is installed to block the top end of the avoiding slot, the jacks are used to support between the positioning plate and the mounting seat plates 204, 205 of the cross beam 2, so as to cold adjust and repair the cross beam 2;

[0045] Figure 2 The schematic diagram of the working state of the tool when the cross beam of the repair tool is reversely installed is as follows:

[0046] Preferably, the positioning plate 105 is a one-word plate-shaped body with a thickness, the first positioning column 104 and the second positioning column 106 are symmetrically provided with a supporting groove at the top end in a staggered form, the positioning plate 105 is supported through the supporting groove, in use, the positioning plate 105 is installed in the supporting groove to block the top end of the avoiding slot, the jacks 107 and 108 are respectively supported between the mounting seat plates 204, 205 to reversely install and cold adjust the cross beam 2;

[0047] Figure 4 The schematic diagram of the working state of the tool when the cross beam of the repair tool is reversely installed is as follows:

[0048] Preferably, the positioning plate 109 is a plate-shaped body with an L-shaped structure in cross section, the positioning plate 109 is fixedly connected with a blocking plate at one end, the positioning plate 109 is overlapped at the top end of the first positioning column 104 and the second positioning column 106 in an inverted form to block the top end of the avoiding slot, the support column 110 is fixedly connected to the outer wall of the positioning plate 109, in use, one end of the jack 111 is in abutment with the support column 110, and the other end is in abutment with the mounting seat plate 204 of the cross beam 2, one end of the jack 112 is in abutment with the first positioning column 104, and the other end is in abutment with the mounting seat plate 205 of the cross beam 2, so as to reversely install and cold adjust the cross beam 2;

[0049] Preferably, the top end face of the stop seat 102 is formed with an upward extending column away from the positioning column, which is used for limiting the cross beam pipe 201 in the X direction;

[0050] Preferably, the four corner positions of the base plate 101 are fixedly connected with lifting lugs 103, which are used for lifting the tool.

[0051] Referring to Figures 1-4 , the schematic diagram of the working state of the tool when the cross beam of the repair tool is reversely installed is as follows:

[0052] The process method for repairing the cross beam 2 of the closed type bogie repair tool of the split type motor mounting seat bogie is disclosed in the application:

[0053] In the method, the two cross beam pipes 201 of the cross beam 2, the longitudinal beam 206 connecting the two cross beam pipes 201, and the mounting seat 202, the mounting seat 203, the mounting seat plate 204, the mounting seat plate 205, and the connecting seat 207 arranged on the cross beam pipe 201 and the longitudinal beam 206 have been completed in the welding process;

[0054] Step 1: Crossbeam adjustment process, place the prepared crossbeam 2 on the adjustment fixture;

[0055] Step 1.1: Reverse installation and adjustment of crossbeam 2. Lower crossbeam tube 201 onto stop seat 102 and tighten it towards the Z-direction support side, i.e., vertically support crossbeam tube 201. At the same time, ensure that the side walls on both sides of connecting seat 207 are vertical, thereby aligning the crossbeam. See [link to relevant documentation]. Figure 2 As shown;

[0056] According to the marked space dimensions, the mounting base plate 204 and mounting base plate 205 are flame-adjusted. Then, the positioning plate 105 is placed into the slots of the positioning column 104 and positioning column 106. The mounting base plate 204 and mounting base plate 205 are cold-adjusted towards the outside of the center of the crossbeam using jacks 107 and 108, so that the space dimensions of the mounting base 202 and mounting base 203 in the X direction meet the processing requirements.

[0057] Step 1.2: Remove the positioning plate 105 from the positioning posts 104 and 106. Adjust the crossbeam 2 to the correct orientation, placing the crossbeam tube 201 onto the stop seat 102 and pressing it firmly against the Z-direction support side, i.e., vertically supporting the crossbeam tube 201. Simultaneously, ensure the side walls on both sides of the connecting seat 207 are vertical, thereby aligning the crossbeam. (See [link]). Figure 4 As shown;

[0058] According to the marked spatial dimensions, the mounting base plates 204 and 205 are flame-adjusted. The positioning plate 109 is placed on the positioning posts 104 and 106, ensuring that the positioning plate 109 and positioning posts 106 are tightly fitted. The mounting base plates 204 and 205 are then cold-adjusted towards the outer center of the crossbeam using the support post 110, jacks 111 and 112, thereby ensuring that the spatial dimensions of the mounting bases 208 and 209 in the X and Z directions meet the processing requirements. The same procedure is applied to the two mounting bases on the other side of the crossbeam.

[0059] Step 1.3: Heat-adjust the height of the four corners of the crossbeam 2: Use a feeler gauge to check the gap between the four crossbeam tubes 201 and the stop seat 102. That is, use a feeler gauge to check the gap between the four Z-direction support points of the two crossbeam tubes 201 on the crossbeam and the lowest point of the outer surface of the crossbeam tube 201 and the upper surface of the stop seat 102. Use flame adjustment to adjust the longitudinal beam 206 at the flash joint position to control the gap within 1mm.

[0060] Figure 5 This is a schematic diagram of the frame assembly. Figure 6 This is a schematic diagram of the reverse assembly of the framework. Figure 7 Diagram for Z-axis dimension alignment of the frame:

[0061] Step 2: Frame alignment process:

[0062] In the welding process, the frame 3 completes the welding of the side beam 301, gearbox hanger 302, mounting seat 303, brake seat 304, air spring seat plate 305, traction rod seat 306, spring seat 307, brake seat assembly 308, brake cylinder hanger 309, and the above-mentioned adjusted crossbeam 2 assembly.

[0063] The method for calibrating the Z-axis dimension of the completed frame 3 is as follows:

[0064] Place the frame 3 in its reversed position, and place the upper cover plate of the side beam 301 on the three jacks. Measure both ends of the crossbeam tube 201 using a height gauge. Adjust the jacks to find the upper plane C and lower plane D of the crossbeam tube. Find the center plane E of the crossbeam tube based on its radius dimensions M and N. Find the center line F of the frame based on the distance O between the center plane E and the frame centerline. Mark the frame centerline F on the frame surface to complete the Z-axis alignment. (See...) Figure 7 As shown.

[0065] Step 3: Frame Adjustment and Repair Procedure:

[0066] Clearly define the component marking and adjustment priority sequence: sequentially mark the vertical dimensions of gearbox hanger 302, motor mounting base 303, traction rod seat 306, spring seat 307, air spring seat plate 305, brake seat 304, end beam brake seat assembly 308, and brake cylinder hanger 309, and mark the deviations. Following the adjustment sequence of spring seat 307, each seat on the end beam, and the four corners of the frame, first perform flame adjustment of the frame, then cold adjust and correct the frame using a press. It is particularly important to ensure that the adjustment of the side beam spring seat 307 is completed before the welding of the secondary vertical vibration damper assembly.

[0067] Step 4: Verify the structure by marking lines;

[0068] After completing the above-mentioned structural adjustment procedures, the machining dimensions of each component of the structure were verified using a scribing machine, and all of them met the requirements of the drawings.

[0069] During the manufacturing process, the first 10 frames are documented, meaning the dimensions of the frames during manufacturing are recorded. Then, another 10 frames are randomly selected from the first three columns, and the important dimensions of the mounting base 304, spring seat 307, and end beam brake seat assembly 308 are recorded. The machining allowances in the X direction for the crossbeam mounting base 304, the Z direction for the side beam spring seat 307, and the Z direction for the end beam brake cylinder seat assembly 308 are all 0 to 5 mm, with a theoretical ideal dimension of 5 mm. Figure 8 As shown in the table of structural dimensions, the machining allowance is within 5mm.

[0070] The process method for adjusting and repairing the cross beam 2 of the frame. First, by using the above-mentioned adjustment and repair tooling and adopting a detachable positioning plate to provide a fulcrum for the jack, cold adjustment and repair of 8 mounting seats can be achieved both when the frame is installed upright and when it is installed upside down. Thus, by combining the cold adjustment and repair method with the hot adjustment and repair method, the spatial dimensions of the mounting seats can be ensured. And through the tooling, hot adjustment and repair of the heights of the four corners of the cross beam are carried out and controlled within 1 mm.

[0071] Secondly, in the frame adjustment and repair process, the scribing and adjustment and repair sequence of each component are clarified. By clarifying the priority, while ensuring the dimensions of the motor mounting seat 304 of the cross beam, the processing dimensions of each component of the side beam and the end beam are sequentially ensured to meet the processing requirements, avoiding repeated adjustment and repair and interference between components.

[0072] In addition, for the frame with an I-shaped structure with end beams, the end beams limit the freedom of adjustment and repair of both ends of the side beams to a certain extent. The original frame alignment method cannot simultaneously meet the processing requirements of the cross beam and the side beam. In the frame alignment process in step 2, the frame Z-axis alignment method is optimized. The original process: after leveling with a center drill, return the theoretical dimension from the upper cover plate of the side beam to determine the Z-axis center line - fine-tune the Z-axis center line according to the non-adjustable parts of the cross beam and the side beam, is optimized to: after leveling with a center drill, determine the Z-axis center line according to the cross beam tube - fine-tune the Z-axis center line according to the non-adjustable parts of the side beam and the end beam. The overall frame is aligned through the cross beam 2 with strictly controlled corner heights, avoiding the problem that the processing amounts of both the X-direction dimension of the cross beam mounting seat and the Z-direction dimension of the side beam spring seat cannot be met due to their联动.

[0073] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above 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 split-type motor mounting bracket bogie enclosed frame adjustment and maintenance fixture, characterized in that, include: Tooling body with a base plate; A first positioning post is fixedly connected to the middle of the base plate, and a second positioning post is fixedly connected to both ends of the base plate at the first positioning post. An avoidance groove is formed between the first positioning post and the second positioning post to avoid the longitudinal beam of the crossbeam. The base plate is symmetrically fixed with stop seats on both sides of the positioning column, which support the crossbeam tube from both ends of the crossbeam; The first and second positioning posts are symmetrically and detachably mounted with positioning plates at their top ends in an alternating manner. These plates block the clearance groove and provide a fulcrum for the jack, thereby enabling the cold-adjustment and repair of the crossbeam in both directions.

2. The split-type motor mounting bracket bogie enclosed frame adjustment and maintenance fixture according to claim 1, characterized in that: The positioning plate is a straight plate with thickness. The tops of the first positioning post and the second positioning post are symmetrically provided with grooves in an alternating manner to support the positioning plate.

3. The split-type motor mounting bracket bogie enclosed frame adjustment and maintenance fixture according to claim 1, characterized in that: The positioning plate is a plate-shaped body with an L-shaped cross-section. The positioning plate can be inverted and overlapped on the top of the first positioning post and the second positioning post to block the top of the clearance groove.

4. The split-type motor mounting bracket bogie enclosed frame adjustment and maintenance fixture according to claim 1, characterized in that: The top end face of the stop seat has an upwardly extending column on the side away from the positioning column, which is used to limit the crossbeam tube in the X direction.

5. A process method for adjusting and repairing the split-type motor mounting bracket bogie enclosed frame using the tooling described in any one of claims 1-4, characterized in that, Includes the following steps: Crossbeam adjustment process: Place the prepared crossbeam in reverse and forward positions on the adjustment fixture, align the position, adjust the mounting plate with flame according to the marked space dimensions, then switch to using the positioning plate with jacks to cold adjust the mounting plate towards the outside of the center of the crossbeam, and finally, hot adjust the height of the four corners of the crossbeam. Frame alignment process: Place the prepared frame in reverse position, find the upper plane C and lower plane D of the crossbeam tube, find the center plane E of the crossbeam tube according to the radius dimensions M and N of the crossbeam tube, find the center line F of the frame according to the distance O between the center plane E of the crossbeam tube and the center line of the frame, and draw the center line F of the frame on the frame surface to complete the Z-axis alignment. Frame adjustment and repair procedures: Clearly define the component marking and adjustment priority sequence, and examine the vertical dimensions of the gearbox hanger, motor mounting base, traction rod base, spring base, air spring base plate, brake base, end beam brake base, and brake cylinder hanger in sequence, mark the deviation, and adjust the spring base, each base on the end beam, and the four corners of the frame in the order of adjustment and repair. First, perform flame adjustment and repair of the frame, and then perform cold adjustment and correction of the frame by press. Frame marking verification process: The processing dimensions of each component of the frame are verified using a marking machine.

6. The process method for adjusting and repairing the split-type motor mounting bracket bogie with enclosed frame according to claim 5, characterized in that: The crossbeam is reversed and adjusted, and the crossbeam tube is lowered onto the stop seat and pressed tightly against the Z-direction support side to ensure that the side wall of the connecting seat is vertical.

7. The process method for adjusting and repairing the split-type motor mounting bracket bogie with enclosed frame according to claim 5, characterized in that: For proper installation and adjustment of the crossbeam, lower the crossbeam tube onto the stop seat and tighten it towards the Z-direction support side to ensure that the side wall of the connecting seat is vertical.

8. The process method for adjusting and repairing the split-type motor mounting bracket bogie with enclosed frame according to claim 6 or 7, characterized in that: During the crossbeam adjustment process, the gap between the four crossbeam tubes and the stop seats is checked by feeler gauge, and the longitudinal beams at the flash joints are flame-adjusted to control the gap to within 1mm.

9. The process method for adjusting and repairing the split-type motor mounting bracket bogie with enclosed frame according to claim 5, characterized in that: During the frame alignment process, the upper cover plate of the side beam is placed on three jacks. The two ends of the crossbeam tube are measured with a height gauge, and the jacks are adjusted to find the upper plane C and the lower plane D of the crossbeam tube.

10. The process method for adjusting and repairing the split-type motor mounting bracket bogie with enclosed frame according to claim 5, characterized in that: The key point in the structural adjustment process is to complete the adjustment of the side beam spring seats before welding the secondary vertical vibration dampers of the structural frame.

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