A casting beam processing technology

Abstract

The present invention provides a casting beam processing technology, which includes: the casting beam processing technology provided by the present invention, before processing the casting beam, by adding process legs to the beam, and preferentially processing the shape of the process legs into place. And by providing a base plate. The base plate is provided with positioning grooves with the same number as the process legs. When the beam is installed on the base plate, preliminary positioning can be performed by the process legs. And the installation position of the beam on the base plate is further positioned by positioning bolts. To ensure the relative position between the beam and the base plate. During the processing and hoisting process, the beam can be flipped by flipping the base plate. During the processing, the beam can also be processed by fixing the base plate to the processing table. The operation is convenient, so as to facilitate the processing of multiple parts on the base plate in the later stage. And the clamping process is stable, reducing the occurrence of processing accidents.

Description

Technical Field

[0001] The invention belongs to the technical field of beam processing, and in particular relates to a casting beam processing technology. Background Art

[0002] Crossbeams are a key component in automobiles. To enhance their overall strength, they are typically manufactured using a single-piece casting. CNC machine tools are then used to machine the mounting surfaces and holes according to design requirements. During CNC machining, the crossbeam's overall shape is complex, and repeated adjustments to the clamping mechanism are required. This makes it difficult to find a support surface during clamping, and the crossbeam is prone to displacement during machining, impacting machining accuracy. Summary of the Invention

[0003] The embodiment of the present invention provides a casting crossbeam processing technology, which aims to solve the problem in the prior art that the crossbeam is inconvenient to clamp and unstable during the processing.

[0004] To achieve the above object, the technical solution adopted by the present invention is to provide a casting beam processing process, comprising:

[0005] Step 1: Add process legs to the beam, where the number of the process legs is at least three and they are located on both sides of the beam respectively;

[0006] Step 2: Fix the crossbeam to the processing table and align it with the blank. After determining the processing benchmark, check whether the processing amount of each processing surface is uniform;

[0007] Step 3: After the machining amount is uniform, the circumference of the process leg is machined to the theoretical value, and positioning holes are machined on the process leg;

[0008] Step 4: A positioning groove is installed on the bottom plate to slide with the process leg. The crossbeam is positioned by placing the process leg into the positioning groove; and the process leg is fixed to the bottom of the positioning groove by a positioning bolt;

[0009] Step 5: Fix the bottom plate to the processing table and process the mounting surface and hole positions of the bottom surface of the beam;

[0010] Step 6: After the bottom surface processing is completed, turn the bottom plate over and process the hole installation surfaces on the front and side surfaces;

[0011] Step 7: Remove the craft legs and dismantle the beam from the base plate.

[0012] In a possible implementation, a column is fixedly mounted on the base plate, the positioning groove is located on the column, the positioning bolt is threadedly connected to the column, and a positioning portion that slides with the process leg is provided on the positioning bolt.

[0013] In a possible implementation, in step 2, the machining allowances at two opposite machining surfaces are detected, and when locating the coordinate point 0, it is ensured that the machining allowances at the two locations are similar.

[0014] In a possible implementation, a coarse positioning plate for coarsely positioning the crossbeam is further provided on the bottom plate. There are multiple coarse positioning plates, and the multiple coarse positioning plates are spaced apart from each other to form a positioning space for placing the crossbeam.

[0015] In a possible implementation, the bottom plate is provided with a clearance hole for avoiding machining of the bottom surface of the beam.

[0016] In a possible implementation, the base plate is further provided with a clamping mechanism for tightening the crossbeam, and the clamping mechanism includes:

[0017] There are two baffles, which are slidably arranged on the bottom plate relative to each other;

[0018] A wedge-shaped block is fixedly connected to the baffle and is located on both sides of the bottom plate with the baffle, and the top surface of the wedge-shaped block is inclinedly provided with a guide surface;

[0019] The pressure plate is detachably mounted on the base plate. The pressure plate is provided with a driving surface that slides with the guide surface. When the pressure plate moves toward the base plate, the pressure plate is used to drive the two wedge blocks to move in a relatively close direction.

[0020] In one possible implementation, two blocks are slidingly provided on the top of the column, and the two blocks form a positioning groove for positioning the process leg, and the blocks can slide into the interior of the column, and a pushing mechanism is provided between the blocks and the column for driving the blocks to slide.

[0021] In one possible implementation, in step 7, the processing surface of the bottom surface of the beam is supported on the processing table as a supporting surface, and after the positioning bolts are removed from the process legs, the two stoppers are driven to slide into the interior of the column, and then the process legs are removed.

[0022] In a possible implementation, the pushing mechanism includes:

[0023] A rotating shaft is rotatably mounted on the column, a cam is fixedly mounted on the rotating shaft, and a side surface of the cam is concavely provided with an annular groove;

[0024] a roller, rotatably disposed on the stopper and rollingly disposed inside the annular groove;

[0025] A driving assembly is provided between the rotating shaft and the column, and is used for driving the rotating shaft to rotate on the column.

[0026] In one possible implementation, the driving component includes:

[0027] a gear, fixedly mounted on the rotating shaft and fixedly connected to the rotating shaft;

[0028] a toothed disc, meshing with the gear, and rotatably mounted on the column;

[0029] A driving rod is fixedly connected to the gear disc and is used to drive the gear disc to rotate.

[0030] Compared with the prior art, the solution shown in the embodiment of the present application is to add process legs to the beam before processing the cast beam, and the shape of the process legs is processed into place first. And a base plate is provided. The base plate is provided with positioning grooves with the same number as the process legs. When the beam is installed on the base plate, preliminary positioning can be performed by the process legs. And the installation position of the beam on the base plate is further positioned by positioning bolts. To ensure the relative position between the beam and the base plate. During the processing and lifting process, the beam can be flipped by flipping the base plate. During the processing, the beam can also be processed by fixing the base plate to the processing table. It is easy to operate, so as to facilitate the processing of multiple parts on the base plate in the later stage. And the clamping process is stable, reducing the occurrence of processing accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the installation structure of the crossbeam on the base plate provided in an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the bottom surface structure of a base plate provided in an embodiment of the present invention;

[0033] Figure 3 A schematic structural diagram of a clamping mechanism provided in an embodiment of the present invention;

[0034] Figure 4 A schematic structural diagram of a driving mechanism provided in an embodiment of the present invention;

[0035] Figure 5 A schematic structural diagram of another embodiment of a pushing mechanism provided in an embodiment of the present invention;

[0036] Figure 6 A schematic structural diagram of a drive assembly provided in an embodiment of the present invention;

[0037] Figure 7 A schematic structural diagram of another embodiment of the interior of a column provided by an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1. Base plate; 11. Column; 111. Stop block; 2. Crossbeam; 3. Process leg; 4. Clamping mechanism; 41. Baffle; 42. Wedge block; 43. Pressure plate; 5. Pushing mechanism; 51. Rotating shaft; 52. Cam; 53. Roller; 54. Driving assembly; 541. Gear; 542. Spur; 543. Driving rod; 55. Turntable; 56. Connector; 57. Rotating shaft; 58. Guide. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] Please also refer to Figure 1 and Figure 2 The casting beam processing technology provided by the present invention is now described. The casting beam processing technology includes:

[0042] Step 1: Add process legs 3 to the beam 2. The number of process legs 3 is at least three and they are located on both sides of the beam 2 respectively.

[0043] Step 2: Fix the beam 2 to the processing table and align it with the blank. After determining the processing benchmark, check whether the processing amount of each processing surface is uniform;

[0044] Step 3: After the machining amount is uniform, the circumference of the process leg 3 is machined to the theoretical value, and positioning holes are machined on the process leg 3;

[0045] Step 4: Install a positioning groove on the bottom plate 1 that slides with the process leg 3. Position the crossbeam 2 by placing the process leg 3 into the positioning groove. Fix the process leg 3 to the bottom of the positioning groove with a positioning bolt.

[0046] Step 5: Fix the base plate 1 to the processing table and process the bottom mounting surface and hole positions of the beam 2;

[0047] Step 6: After the bottom surface processing is completed, turn the bottom plate 1 over and process the hole installation surfaces on the front and side surfaces;

[0048] Step 7: Remove the process legs 3 and dismantle the crossbeam 2 from the base plate 1.

[0049] Compared with the prior art, the casting beam processing process provided in this embodiment adds process legs 3 to the beam 2 before processing the casting beam 2, and preferentially processes the shape of the process legs 3 into place. A base plate 1 is provided. The base plate 1 is provided with positioning grooves having the same number as the process legs 3. When the beam 2 is installed on the base plate 1, preliminary positioning can be performed by the process legs 3. The installation position of the beam 2 on the base plate 1 is further positioned by positioning bolts. This ensures the relative position between the beam 2 and the base plate 1. During the processing and hoisting process, the beam 2 can be flipped by flipping the base plate 1. During the processing, the beam 2 can also be processed by fixing the base plate 1 to the processing table. The operation is convenient, so as to facilitate the processing of multiple parts on the base plate 1 in the later stage. The clamping process is stable, which reduces the occurrence of processing accidents.

[0050] Specifically, in this embodiment, the process legs 3 can be directly cast on the beam 2 during the casting process of the beam 2, or can be welded to the beam 2 at a later stage.

[0051] Preferably, in this embodiment, the number of the process legs 3 is four, and two of them are located on both sides of the beam 2 respectively.

[0052] Specifically, in this embodiment, a reference hole is provided on the bottom plate 1 , and the reference hole is a stepped hole. The reference hole is provided through the bottom plate 1 , and the reference holes located on both sides of the bottom plate 1 are coaxially arranged.

[0053] Optionally, in this embodiment, in step 3, the circumference of the process leg 3 is processed into a theoretical structure with a square cross section, which can achieve the positioning of the beam 2 in the height direction and the length direction. The position of the beam 2 in the width direction is then positioned by positioning bolts.

[0054] Preferably, in this embodiment, the position of the process leg 3 is designed on the processing surface, and the processing surface here is processed during the process of removing the process leg 3 in step 7 to avoid processing marks on the blank position of the beam 2, which affects the overall appearance of the beam 2.

[0055] In some embodiments, the bottom plate 1 may be formed as follows: Figure 1 、 Figure 3 and Figure 4 See also Figure 1 、 Figure 3 and Figure 4, a column 11 is fixedly installed on the base plate 1, and a positioning groove is located on the column 11. The positioning bolt is threadedly connected to the column 11, and a positioning portion that slides with the process leg 3 is provided on the positioning bolt. The number of columns 11 corresponding to the process legs 3 is fixedly installed on the base plate 1. When the process legs 3 are overlapped on the column 11, the crossbeam 2 is suspended on the base plate 1 to prevent the crossbeam 2 from resting on the base plate 1 and affecting the accuracy of the installation position of the crossbeam 2. The end of the positioning screw is provided with a threaded portion that is threadedly connected to the column 11. The middle part of the positioning screw is a positioning portion that slides with the positioning hole. The positioning portion is a polished rod structure and slides with the positioning hole, and the process leg 3 is pressed tightly inside the positioning groove through the end of the positioning screw. The crossbeam 2 is fixedly installed on the base plate 1 and is located in a fixed position on the base plate 1. During later processing, the crossbeam 2 can be processed based on the processing base on the base plate 1.

[0056] In some embodiments, the above step 2 can be performed as follows Figure 1 See the structure shown. Figure 1 In step 2, the machining allowances at the two opposing machining surfaces are detected, and when locating coordinate point 0, the machining allowances at both locations are ensured to be similar. Define the length direction of beam 2 as the first direction, and define the width direction of beam 2 as the second direction. When defining the machining datum for the first direction, it is necessary to detect the machining allowances at both ends of beam 2 in the length direction to ensure that the machining allowances at both ends are uniform. When defining the machining datum for the second direction, it is necessary to detect the machining allowances at both ends of beam 2 in the width direction to ensure that the machining allowances on both sides of beam 2 are uniform. This determines the machining datums for the first and second directions.

[0057] Optionally, in this embodiment, when checking the machining allowance, a CNC machine tool is used to perform a light milling cut on the surface position of the side of the blank surface based on the theoretical value and leaving a machining allowance of 1 mm. Multiple machining can be performed on the side to avoid deformation resulting in no machining allowance in the later stage. This facilitates observation of the machining allowance.

[0058] In some embodiments, the bottom plate 1 may also be Figure 1 See the structure shown. Figure 1 , a coarse positioning plate for coarse positioning of the crossbeam 2 is also provided on the base plate 1. There are multiple coarse positioning plates, and the multiple coarse positioning plates are spaced apart from each other to form a positioning space for placing the crossbeam 2. A coarse positioning plate is fixedly installed in the middle of the base plate 1, and the coarse positioning is arranged to facilitate the crossbeam 2 to slide into the positioning space. During use, the crossbeam 2 slides into the positioning space before the process leg 3 slides into the positioning groove. After the crossbeam 2 slides between the two coarse positioning plates, it can play the role of a mobile guide. At the same time, it can prevent the crossbeam 2 from shaking and affecting the process leg 3 from sliding into the positioning groove. Improve the assembly efficiency between the crossbeam 2 and the base plate 1.

[0059] In some embodiments, the bottom plate 1 may be formed as follows: Figure 1 、 Figure 2 See also Figure 1 、 Figure 2 The base plate 1 is provided with clearance holes to allow for machining of the bottom surface of the crossbeam 2. The bottom of the crossbeam 2 is equipped with two protruding mounting platforms, the outer surfaces of which serve as mounting surfaces and are provided with multiple mounting holes. When the crossbeam 2 is mounted on the base plate 1, the clearance holes prevent interference between the base plate 1 and the machine tool during machining of the mounting platforms.

[0060] Preferably, in this embodiment, after the processing of the process legs 3 on the beam 2 is completed, the beam 2 can be fixedly installed on the base plate 1 in a working area outside the machine tool, thereby reducing the working time of the machine tool.

[0061] Specifically, in this embodiment, the distance between the top surface of the base plate 1 and the bottom surface of the positioning groove is a fixed value, and the coordinate value of the height direction of the beam 2 can be determined by the coordinate value of the top surface of the base plate 1. In step 5, the beam 2 can be fixed to the machine tool through the base plate 1, and the reference hole on the base plate 1 and the top surface of the base plate 1 are used as the reference for processing the beam 2. And in step 6, the processing reference on the base plate 1 is also selected for processing. On the one hand, it is convenient to fix and clamp the beam 2 during processing. At the same time, the processing accuracy of the beam 2 can be effectively improved by using the processing reference on the base plate 1.

[0062] In some embodiments, the clamping mechanism 4 may be configured as follows: Figure 1 、 Figure 2 and Figure 3 See also Figure 1 、 Figure 2 and Figure 3The base plate 1 is also provided with a clamping mechanism 4 for tightening the crossbeam 2. The clamping mechanism 4 includes a baffle 41, a wedge block 42, and a pressure plate 43. There are two baffles 41, which are arranged on the base plate 1 to slide relative to each other. The wedge blocks 42 are fixedly connected to the baffle 41 and are located on either side of the baffle 41. The top surfaces of the wedge blocks 42 are provided with an inclined guide surface. The pressure plate 43 is detachably mounted on the base plate 1. The pressure plate 43 is provided with a driving surface that slides with the guide surface. When the pressure plate 43 moves toward the base plate 1, it drives the two wedge blocks 42 to move relatively closer. The two wedge blocks 42 slide on the base plate 1 in a direction toward or away from each other. The wedge blocks 42 and the baffles 41 are located on either side of the base plate 1. The baffle 41 and the coarse positioning plate are located on the same side of the base plate 1. A tightening bolt is connected to the pressure plate 43, extending through the plate and threadedly connected to the base plate 1. This tightening bolt presses the pressure plate 43 against the wedge-shaped slider. The pressure plate 43 is provided with drive surfaces that slidably engage the guide surfaces. When the pressure plate 43 moves toward the base plate 1, it drives the two wedge blocks 42, which in turn move the baffles 41 toward each other, thereby clamping the crossbeam 2 between the two baffles 41.

[0063] Preferably, in this embodiment, a runway hole for installing a tightening bolt is provided on the pressure plate 43, and the length direction of the runway hole is arranged along the length direction of the wedge block 42. When the deformation of the beam 2 deviates from the theoretical value, the two baffles 41 can respectively abut against the two sides of the beam 2.

[0064] Preferably, in this embodiment, a slider is fixedly connected between the wedge block 42 and the baffle 41, and a slide groove for the slider to slide is provided on the bottom plate 1. The slider is slidably arranged inside the slide groove.

[0065] In some embodiments, the pillar 11 may be formed as follows: Figure 1 、 Figure 4 and Figure 5 See also Figure 1 、 Figure 4 and Figure 5 , two stops 111 are slidingly provided on the top of the column 11, and the two stops 111 form a positioning groove for positioning the process leg 3, and the stop 111 can slide into the interior of the column 11, and a pushing mechanism 5 for driving the stop 111 to slide is provided between the stop 111 and the column 11. The stop 111 is slidingly set on the column 11. When the crossbeam 2 needs to be processed, the slider slides out of the top of the column 11 to locate the installation position of the process leg 3. When step 7 is implemented, the stop 111 can be slid into the interior of the column 11 by the pushing mechanism 5. And after removing the positioning bolts, the process leg 3 is removed.

[0066] Preferably, in this embodiment, when removing the process legs 3, the crossbeam 2 is supported on the workbench by using spacers. Furthermore, the crossbeam 2 and the machine tool support are both clamped and fixed on the crossbeam 2. Therefore, when the base plate 1 is displaced after the positioning bolts are removed, the processing of the crossbeam 2 is not affected.

[0067] In some embodiments, the above step 7 can be performed as follows Figure 1 、 Figure 2 See also Figure 1 、 Figure 2 In step 7, the processing surface of the bottom surface of the beam 2 is supported on the processing table as a support surface. After the positioning bolts are removed from the process legs 3, the two blocks 111 are driven to slide into the interior of the column 11, and then the process legs 3 are removed. In step 7, the coordinate system for processing the beam 2 is positioned by using a shim to support the processing surface of the bottom surface of the beam 2 and pressing the beam 2 onto the processing table. After the positioning bolts are removed, even if the base plate 1 slides downward, it will not affect the coordinate system for processing the beam 2. At the same time, the block 111 slides into the interior of the column 11, and when the process legs 3 are processed, the block 111 is prevented from being damaged by the tool of the CNC machine tool.

[0068] Specifically, in this embodiment, a support column is installed on the base plate 1, and the support column is threadedly connected to the base plate 1. When the base plate 1 is installed on the processing table, the support column is supported on the processing table by rotating the support column to prevent the base plate 1 from moving downward after the positioning bolts are loosened.

[0069] In some embodiments, the pushing mechanism 5 may be configured as follows: Figure 4 、 Figure 5 See also Figure 4 、 Figure 5 The pushing mechanism 5 includes a rotating shaft 51, a roller 53 and a driving assembly 54. The rotating shaft 51 is rotatably mounted on the column 11, and a cam 52 is fixedly mounted on the rotating shaft 51. An annular groove is recessed on the side of the cam 52; the roller 53 is rotatably mounted on the stopper 111 and is rolled inside the annular groove; the driving assembly 54 is disposed between the rotating shaft 51 and the column 11 and is used to drive the rotating shaft 51 to rotate on the column 11. The rotating shaft 51 is rotatably mounted on the column 11. The cam 52 is fixedly mounted on the rotating shaft 51. The axis of the cam 52 is parallel to the axis of the rotating shaft 51 and is spaced apart, so that the height of the roller 53 changes with the rotation of the cam 52. Therefore, the stopper 111 can be driven to slide on the column 11 by driving the rotating shaft 51 to rotate.

[0070] Specifically, in this embodiment, the central axis of the annular groove is arranged parallel to the axis of the rotating shaft 51 .

[0071] A modified embodiment of the above-mentioned pushing mechanism 5 is that the pushing mechanism 5 includes a turntable 55, a rotating shaft 57, a connecting member 56, and a guide member 58. The turntable 55 is fixedly mounted on the rotating shaft 51, and the rotating shaft 57 is fixedly mounted on the turntable 55 and is arranged parallel to the rotating shaft 51. The connecting member 56 is provided with a slide groove that slidably cooperates with the guide member 58. The guide member 58 is fixedly mounted on the stopper 111. In this embodiment, the driving assembly 54 drives the rotating shaft 57 to rotate, and the rotating shaft 57 drives the turntable 55 to rotate. As a result, the rotating shaft 57 on the turntable 55 moves along with the rotation of the turntable 55. The connecting member 56 moves along with the movement of the rotating shaft 57 and slides within the slide groove. This can drive the stopper 111 to slide on the column 11.

[0072] Specifically, in this embodiment, see Figure 7 The turntable 55 or cam 52 is slidably set on the rotating shaft 51 along the length direction of the rotating shaft 51, and an anti-rotation key is fixedly installed on the rotating shaft 51, and the anti-rotation key slides with the turntable 55 or cam 52. A chamfer is provided on the side of the stopper 111. An inclined surface that slides with the chamfer on the stopper 111 is recessed inside the column 11. An elastic member is provided between the two turntables 55 or the two cams 52 for driving the two turntables 55 to slide in a relatively distant direction or the two cams 52 to slide in a relatively distant direction. After the stopper 111 slides a certain distance into the interior of the column 11, the two stops move in a relatively distant direction with the cooperation of the inclined surface of the chamfering machine. This facilitates the removal of the legs in the later process.

[0073] In some embodiments, the drive assembly 54 may be configured as follows: Figure 6 See the structure shown. Figure 6 The drive assembly 54 includes a gear 541, a toothed disc 542, and a drive rod 543. Gear 541 is fixedly mounted on and connected to the rotating shaft 51; toothed disc 542 is meshed with gear 541 and rotatably mounted on the column 11; and drive rod 543 is fixedly connected to toothed disc 542 to drive the rotation of toothed disc 542. Gear 541 and toothed disc 542 are both located outside the column 11. The operator needs to hold the drive rod 543 to rotate the toothed disc 542, which in turn drives gear 541, thereby achieving rotation of the rotating shaft 51.

[0074] Specifically, in this embodiment, a limit gear rod 544 is hingedly provided on the column 11 , and a torsion spring 545 is provided between the hinge axis of the limit gear rod 544 and the column 11 for driving the limit gear rod 544 to move toward the gear disc 542 .

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A casting beam processing process, characterized in that: include: Step 1: adding process legs (3) to the crossbeam (2), wherein the number of the process legs (3) is at least three and the process legs (3) are respectively located on both sides of the crossbeam (2); Step 2, fix the crossbeam (2) to the processing table, align it with the blank, determine the processing benchmark, and then check whether the processing amount of each processing surface is uniform; Step 3, after the processing amount is detected to be uniform, the circumference of the process leg (3) is processed to the theoretical value, and a positioning hole is processed on the process leg (3); Step 4: Install a positioning groove on the bottom plate (1) that is slidably matched with the process leg (3), and position the crossbeam (2) by placing the process leg (3) inside the positioning groove; and fix the process leg (3) to the bottom of the positioning groove by using a positioning bolt; Step 5, fix the bottom plate (1) to the processing table, and process the bottom mounting surface and hole positions of the crossbeam (2); Step 6: After the bottom surface processing is completed, the bottom plate (1) is turned over and the front and side hole installation surfaces are processed; Step 7, remove the process legs (3) and dismantle the crossbeam (2) from the base plate (1); A column (11) is fixedly mounted on the base plate (1), the positioning groove is located on the column (11), the positioning bolt is threadedly connected to the column (11), and the positioning bolt is provided with a positioning portion that is slidably matched with the process leg (3); Two stoppers (111) are slidably provided on the top of the column (11), the two stoppers (111) forming a positioning groove for positioning the process leg (3), and the stoppers (111) can slide into the interior of the column (11), and a pushing mechanism (5) for driving the stoppers (111) to slide is provided between the stoppers (111) and the column (11); In step 7, the processing surface of the bottom surface of the crossbeam (2) is supported on the processing table as a supporting surface, and after the positioning bolts are removed from the process legs (3), the two stoppers (111) are driven to slide into the interior of the column (11), and then the process legs (3) are removed; The pushing mechanism (5) comprises: A rotating shaft (51) is rotatably mounted on the column (11), a cam (52) is fixedly mounted on the rotating shaft (51), and a side surface of the cam (52) is concavely provided with an annular groove; A roller (53) is rotatably disposed on the stopper (111) and is rollingly disposed inside the annular groove; A driving assembly (54) is provided between the rotating shaft (51) and the column (11) and is used for driving the rotating shaft (51) to rotate on the column (11).

2. The casting beam processing process according to claim 1, characterized in that: In step 2, the machining allowances at two opposite machining surfaces are detected, and when locating the coordinate point 0, the machining allowances at the two locations are ensured to be similar.

3. The casting beam processing process according to claim 1, characterized in that: The bottom plate (1) is also provided with a coarse positioning plate for coarsely positioning the crossbeam (2), and the number of the coarse positioning plates is multiple, and the multiple coarse positioning plates are arranged in pairs at intervals to form a positioning space for placing the crossbeam (2).

4. The casting beam processing process according to claim 1, characterized in that: The bottom plate (1) is provided with a clearance hole for avoiding machining of the bottom surface of the crossbeam (2).

5. The casting beam processing process according to claim 1, characterized in that: The base plate (1) is further provided with a clamping mechanism (4) for clamping the crossbeam (2), and the clamping mechanism (4) comprises: baffles (41), the number of which is two, and the two baffles (41) are relatively slidably arranged on the bottom plate (1); A wedge block (42) is fixedly connected to the baffle (41) and is located on both sides of the bottom plate (1) with the baffle (41). The top surface of the wedge block (42) is inclinedly provided with a guide sliding surface; A pressure plate (43) is detachably mounted on the base plate (1). The pressure plate (43) is provided with a driving surface that slidably cooperates with the guide surface. When the pressure plate (43) moves in a direction close to the base plate (1), the pressure plate (43) is used to drive the two wedge blocks (42) to move in a direction close to each other.

6. The casting beam processing process according to claim 1, characterized in that: The drive assembly (54) comprises: a gear (541) fixedly mounted on the rotating shaft (51) and fixedly connected to the rotating shaft (51); a toothed disc (542) meshing with the gear (541), the toothed disc (542) being rotatably mounted on the column (11); The driving rod (543) is fixedly connected to the toothed disc (542) and is used to drive the toothed disc (542) to rotate.

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