Front side cross beam manufacturing process and cutting machining clamping device

Abstract

The invention relates to the technical field of front side cross beam manufacturing, and discloses a front side cross beam manufacturing process and a cutting machining clamping device.The front side cross beam manufacturing process comprises the following steps that S1, a cross beam workpiece is clamped and positioned through a first tool; s2, primary machining is carried out, and milling machining is carried out on the two end faces P1 and P7 and the two planes P2 and P6; s3, the cross beam workpiece is clamped and positioned through a second tool; and S4, secondary machining is conducted, specifically, a side wall P3 and two concave faces P4 and P5 of the cross beam workpiece are milled through milling equipment, the first tool and the second tool are both arranged in a double-station mode, the cross beam workpiece is supported and positioned through cooperation of a plurality of oil cylinders and an ejector head, the deformation amount of the cross beam workpiece in the machining process is controllable, the product size precision is high, and the machining efficiency is high. In addition, due to the fact that double stations are arranged and matched with oil cylinder driving, the beam workpiece does not need to be manually adjusted and positioned, a special tool is adopted in the manufacturing process, production automation can be achieved, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of front crossbeam manufacturing, and in particular to a front crossbeam manufacturing process and a cutting and processing clamping device. Background Art

[0002] The front crossbeam of the battery pack is mainly used in the energy storage component system of new energy vehicles. When the car is in motion, the mechanical changes on the battery pack will change due to uneven speed, steering, etc., which will inevitably have higher requirements on the strength of the parts and the size of the assembly interface, so that the car can obtain better stability during driving.

[0003] Since the front crossbeam is an auxiliary structure and has high requirements for key dimensional accuracy, it is generally obtained by a manufacturing process of forging and then cutting. Then, in order to reduce material consumption, the shape of the forged blank needs to be similar to the finished part structure of the front crossbeam. The front crossbeam has complex appearance characteristics, which brings difficulties to the cutting of the front crossbeam. Since the part to be cut is non-continuous, the processing deformation during the cutting process is uncontrollable, and due to the complex appearance characteristics, it is difficult to position it when clamping and fixing it. When clamping and positioning, professional personnel are often required to adjust and position the front crossbeam, which is not only extremely inefficient but also difficult to ensure the dimensional accuracy requirements of the parts after cutting. Summary of the invention

[0004] The object of the present invention is to provide a front crossbeam manufacturing process and a cutting and processing clamping device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a front crossbeam manufacturing process, characterized in that it comprises the following steps:

[0006] S1. Pre-divide the surface of the beam workpiece to be processed into a first convex end face P1 and a second end face P7, two planes P2 and P6, a side wall P3, and two concave surfaces P4 and P5; firstly, clamp and position the beam workpiece by a first tooling;

[0007] S2, initial processing, using a milling device to mill the first end face P1 and the second end face P7 of the beam workpiece, processing two bosses on the first end face P1 and the second end face P7, and making the dimensional accuracy of the boss of the first end face P1 and the boss of the second end face P7 meet the use requirements, and then using a device to mill two planes P2 and P6 distributed at different positions to make their dimensional accuracy meet the use requirements;

[0008] S3, clamping and positioning the beam workpiece by using the second tooling with the two boss surfaces in step S2 as positioning;

[0009] S4, secondary processing, using milling equipment to mill a side wall P3 and two concave surfaces P4, P5 of the beam workpiece so that its dimensional accuracy meets the use requirements.

[0010] The present invention also provides a front crossbeam clamping device, comprising a front crossbeam clamp mounting seat, a clamping mechanism is arranged on the top of the front crossbeam clamp mounting seat, and a crossbeam workpiece is clamped on the upper part of the clamping mechanism;

[0011] The clamping mechanism includes a first fixture and a second fixture, both of which are double-station settings, the first fixture includes a first positioning seat, a first oil cylinder, a second oil cylinder, a third oil cylinder, a fourth oil cylinder and a first jack, the first oil cylinder, the second oil cylinder, the third oil cylinder and the fourth oil cylinder are respectively at specific angles on the outside of the beam workpiece, and the first jack is supported on the bottom side of the beam workpiece;

[0012] The second tooling includes a second positioning seat, a fifth oil cylinder, a sixth oil cylinder and a second ram. The fifth oil cylinder and the sixth oil cylinder are distributed at specific angles on the outside of the beam workpiece, and the second ram is supported on the bottom side of the beam workpiece.

[0013] Preferably, a mounting bridge plate is provided on the top of the front cross beam fixture mounting seat, and the first tooling and the second tooling are both connected to the front cross beam fixture mounting seat via the mounting bridge plate.

[0014] Preferably, the first positioning seat is fixedly connected to the top side of the mounting bridge plate by bolts, and the beam workpiece is embedded and placed on the top of the first positioning seat. A mounting groove is provided on the top of the first positioning seat, and the number of the first pins and the mounting grooves are both two. The first pins are fixed to the inner side of the mounting groove, and the top end of the first pins abuts against the bottom of the beam workpiece.

[0015] Preferably, the fourth oil cylinder is fixedly connected to the middle part of the front side of the mounting bridge plate by bolts, and a spring head is provided at the push rod end of the fourth oil cylinder, and the spring head is fixedly connected to the push rod end of the fourth oil cylinder, and the spring head is in conflict with the front side of the beam workpiece, and the first oil cylinder is fixed to the rear side of the mounting bridge plate by bolts, and a first pressure plate is hinged at the push rod end of the first oil cylinder, and the first pressure plate is pressed down and clamped at the top of the rear side of the beam workpiece.

[0016] Preferably, the number of the second cylinder and the third cylinder are both two, and the two third cylinders are symmetrically fixed on both sides of the front of the mounting bridge plate. The push rod ends of the third cylinders are fixed with cylinder heads, which abut against both sides of the front of the beam workpiece.

[0017] Preferably, the two second oil cylinders are symmetrically fixed on both sides of the rear portion of the mounting bridge plate, and the push rod ends of the two second oil cylinders are connected to second pressure plates, which are pressed down and clamped on both sides of the top of the beam workpiece.

[0018] Preferably, the number of the second positioning seats is two, and the two second positioning seats are symmetrically fixed on both sides of the top of the mounting bridge plate, and the crossbeam workpiece is embedded and placed on the top of the second positioning seats.

[0019] Preferably, the number of the second plugs is four, the four second plugs are evenly distributed at the bottom of the beam workpiece, the four second plugs are fixedly connected to the top of the mounting bridge plate, and the tops of the second plugs are supported by the bottom of the beam workpiece.

[0020] Preferably, the number of the fifth cylinder and the sixth cylinder are both two, the two fifth cylinders are symmetrically fixed on the left and right sides of the mounting bridge plate, the push rod ends of the two fifth cylinders are hinged with fifth pressure plates, and the two fifth pressure plates are pressed down and clamped at the top two sides of the beam workpiece respectively, and the two sixth cylinders are symmetrically fixed on the rear sides of the mounting bridge plate, the push rod ends of the two sixth cylinders are hinged with sixth pressure plates, and the sixth pressure plates are pressed down and clamped at the top rear side of the beam workpiece.

[0021] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0022] This clamping device adopts a double-station setting, and supports and positions the beam workpiece through the cooperation of multiple cylinders and jacks. The cylinders and jacks match the appearance characteristics of the beam workpiece, and can accurately support and position the beam workpiece and reserve processing space, so that the deformation of the beam workpiece during processing can be controlled, the product size is high in accuracy, the product size is stable, and the product material cutting processing allowance is small, which can reduce material and tool consumption. In addition, due to the double-station setting and the cylinder drive, two groups of beam workpieces can be clamped and fixed at the same time, and the clamping and positioning process is completed by the cylinder action, and there is no need for manual adjustment and positioning of the beam workpiece. The manufacturing process uses special tooling to realize production automation, which greatly improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the planar structure of the first tooling of the present invention;

[0026] Figure 3 It is a schematic diagram of the first tooling clamping structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the front structure of the first tooling of the present invention;

[0028] Figure 5 It is a schematic diagram of the planar structure of the second tooling of the present invention;

[0029] Figure 6 It is a schematic diagram of the second tooling clamping structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the front structure of the second tooling of the present invention;

[0031] Figure 8 It is a schematic diagram of the distribution of the processing surface of the beam workpiece of the present invention.

[0032] Explanation of the accompanying drawings: 1. Front side crossbeam clamp mounting seat; 2. Clamping mechanism; 3. Mounting bridge plate; 4. First positioning seat; 5. First oil cylinder; 6. First pressure plate; 7. Second oil cylinder; 8. Second pressure plate; 9. Third oil cylinder; 10. Cylinder jack; 11. Fourth oil cylinder; 12. Spring jack; 13. First jack; 14. Second positioning seat; 15. Fifth oil cylinder; 16. Fifth pressure plate; 17. Sixth oil cylinder; 18. Sixth pressure plate; 19. Second jack; 20. Crossbeam workpiece. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0035] Example

[0036] See also Figure 1-8 The present invention provides a technical solution: a front crossbeam manufacturing process, comprising the following steps:

[0037] S1, the surface of the beam workpiece 20 to be processed is pre-divided into a convex first end surface P1 and a second end surface P7, two planes P2, P6, a side wall P3, and two concave surfaces P4, P5; Figure 8 The figure shows the distribution diagram of the upper processing surface of the beam workpiece 20. First, the beam workpiece 20 is clamped and positioned by the first tooling. When the beam workpiece 20 is fixed by the first tooling, the beam workpiece 20 is placed in the first tooling, and the bottom of the beam workpiece 20 is used as the plane positioning. The beam workpiece 20 is placed on the top of the first positioning seat 4, and the side of the beam workpiece 20 is used as the lateral positioning. The beam workpiece 20 is placed on one side of the cylinder head 10, and then the third cylinder 9 on the side is started, and the cylinder head 10 pushes the beam workpiece 20 so that the side of the beam workpiece 20 is close to the positioning block. Then, the second cylinders 7 on both sides work to drive the second pressing plate 8 to press and fix the top two sides of the beam workpiece 20, and then the first head 13 under the beam workpiece 20 rises to support and position the bottom of the beam workpiece 20, and finally the first cylinder 5 works to drive the first pressing plate 6 to clamp the middle part of the top side of the beam workpiece 20, so as to complete the clamping and fixing of the beam workpiece 20.

[0038] S2, initial processing, using a milling device to mill the first end face P1 and the second end face P7 of the beam workpiece 20, processing two bosses on the first end face P1 and the second end face P7, and making the dimensional accuracy of the boss of the first end face P1 and the boss of the second end face P7 meet the use requirements, and then using a device to mill two planes P2 and P6 distributed at different positions to make their dimensional accuracy meet the use requirements;

[0039] S3, through the second tooling with the two boss surfaces in step S2 as positioning, the beam workpiece 20 is clamped and positioned. When the beam workpiece 20 is fixed by the second tooling, the beam workpiece 20 after the initial processing is removed from the upper part of the first tooling, and the beam workpiece 20 is placed in the second tooling, with the two side surfaces of the beam workpiece 20 as positioning planes, the beam workpiece 20 is embedded and placed on the upper part of the two second positioning seats 14, and the chamfer of the beam workpiece 20 is used as lateral positioning, and the beam workpiece 20 is clamped with the side surface of the inner second positioning seat 14. After that, the four second heads 19 at the bottom of the beam workpiece 20 rise to support and position the bottom of the beam workpiece 20, and then the fifth oil cylinders 15 on both sides work to drive the fifth pressure plate 16 to clamp and fix the two sides of the beam workpiece 20, and finally the sixth oil cylinder 17 works to drive the sixth pressure plate 18 to press down and clamp the top of the beam workpiece 20, completing the clamping and fixing of the beam workpiece 20;

[0040] S4, secondary processing, using a milling device to mill a side wall P3 and two concave surfaces P4, P5 of the beam workpiece 20 so that their dimensional accuracy meets the use requirements.

[0041] The present invention also provides a front crossbeam clamping device, including a front crossbeam clamp mounting seat 1, a universal turntable assembly is arranged on the upper part of the front crossbeam clamp mounting seat 1, and the installation size matches it. The universal turntable assembly is a four-axis turntable, and the model of its active seat is MRNC255 and the model of the tail seat is RTS255.

[0042] The top of the front crossbeam fixture mounting seat 1 is provided with a clamping mechanism 2, which includes a first fixture and a second fixture. The upper part of the clamping mechanism 2 is clamped with a crossbeam workpiece 20, which is a customized workpiece. Its appearance features can be referred to in the attached Figure 8 , attached Figure 8 It is a distribution diagram of the upper processing surface of the beam workpiece 20.

[0043] A mounting bridge plate 3 is provided on the top of the front cross beam fixture mounting seat 1 , and the first fixture and the second fixture are both connected to the front cross beam fixture mounting seat 1 via the mounting bridge plate 3 .

[0044] The first tooling can be a double-station setting for both the first tooling and the second tooling, and can clamp and position two groups of beam workpieces 20 at the same time.

[0045] The first tooling can clamp and position the beam workpiece 20 during initial processing. The first tooling includes a first positioning seat 4, a first cylinder 5, a second cylinder 7, a third cylinder 9, a fourth cylinder 11 and a first jack 13. The first positioning seat 4 is fixedly connected to the top side of the mounting bridge plate 3 by bolts, and the beam workpiece 20 is embedded and placed on the top of the first positioning seat 4.

[0046] The first oil cylinder 5 , the second oil cylinder 7 , the third oil cylinder 9 and the fourth oil cylinder 11 are respectively located at specific angles on the outside of the beam workpiece 20 , and can complete the clamping and positioning of the beam workpiece 20 through support positioning.

[0047] There are two second cylinders 7 and two third cylinders 9. The third cylinder 9 is a single-acting cylinder with a model number of CTC-12B. The two third cylinders 9 are symmetrically fixed on both sides of the front of the mounting bridge plate 3. The push rod ends of the third cylinders 9 are fixed with cylinder heads 10, which abut against both sides of the front of the beam workpiece 20 to clamp and position the outer side of the beam workpiece 20.

[0048] The second oil cylinder 7 is a corner cylinder, and its model is CHA-040SR*90C. The two second oil cylinders 7 are symmetrically fixed on both sides of the rear of the mounting bridge plate 3. The push rod ends of the two second oil cylinders 7 are connected to the second pressure plates 8, and the second pressure plates 8 are pressed down and clamped on both sides of the top of the beam workpiece 20.

[0049] The fourth oil cylinder 11 is a thin cylinder, and its model is CHTB-SDMA32-10N. The fourth oil cylinder 11 is fixedly connected to the middle of the front side of the mounting bridge plate 3 by bolts. The push rod end of the fourth oil cylinder 11 is provided with a spring head 12, and the spring head 12 is fixedly connected to the push rod end of the fourth oil cylinder 11. The spring head 12 conflicts with the front side of the beam workpiece 20.

[0050] The first oil cylinder 5 is a corner cylinder, and its model is CHA-040SR*90C. The first oil cylinder 5 is fixed to the rear side of the mounting bridge plate 3 by bolts. The push rod end of the first oil cylinder 5 is hinged with a first pressure plate 6, and the first pressure plate 6 is pressed down and clamped on the rear top of the beam workpiece 20.

[0051] The first jack 13 is supported on the bottom side of the beam workpiece 20. The first jack 13 is a support cylinder with the model number LD0362-L. A mounting groove is provided on the top of the first positioning seat 4. There are two first jacks 13 and two mounting grooves. The first jack 13 is fixed on the inner side of the mounting groove. The top end of the first jack 13 abuts against the bottom of the beam workpiece 20, so as to support and position the beam workpiece 20.

[0052] The first tooling can clamp and position the beam workpiece 20 for initial processing. The second tooling includes a second positioning seat 14, a fifth oil cylinder 15, a sixth oil cylinder 17 and a second jack 19. There are two second positioning seats 14. The two second positioning seats 14 are symmetrically fixed on both sides of the top of the mounting bridge plate 3. The beam workpiece 20 is inserted and placed on the top of the second positioning seat 14, and the beam workpiece 20 can be initially inserted and positioned.

[0053] The fifth oil cylinder 15 and the sixth oil cylinder 17 are distributed at a specific angle on the outside of the beam workpiece 20. The number of the fifth oil cylinder 15 and the sixth oil cylinder 17 are both two. The two fifth oil cylinders 15 are symmetrically fixed on the left and right sides of the mounting bridge plate 3. The fifth oil cylinder 15 is a lever cylinder, and its model is CLKA-065CL. The push rod ends of the two fifth oil cylinders 15 are hinged with fifth pressure plates 16, and the two fifth pressure plates 16 are pressed down and clamped on both sides of the top of the beam workpiece 20.

[0054] The two sixth oil cylinders 17 are symmetrically fixed on both sides of the rear of the mounting bridge plate 3. The sixth oil cylinder 17 is a lever cylinder, and its model is CLKA-048CL. The push rod ends of the two sixth oil cylinders 17 are hinged with the sixth pressure plate 18, and the sixth pressure plate 18 is pressed down and clamped on the top rear side of the beam workpiece 20.

[0055] The second jack 19 is supported on the bottom side of the beam workpiece 20. The second jack 19 is a floating cylinder, and its model is LD0452-L. There are four second jacks 19. The four second jacks 19 are evenly distributed on the bottom of the beam workpiece 20. The four second jacks 19 are all fixedly connected to the top of the mounting bridge plate 3. The top of the second jack 19 is supported on the bottom of the beam workpiece 20, and the beam workpiece 20 can be supported and positioned. While accurately supporting and positioning the beam workpiece 20, the deformation of the beam workpiece 20 during processing can be controlled.

[0056] Working principle or structural principle, when using, first install the tooling, when installing the first tooling, use bolts to install the mounting bridge plate 3 on the top of the front cross beam fixture mounting seat 1, connect the first tooling with the turntable on the upper part of the front cross beam fixture mounting seat 1, and then connect the oil supply pipeline on the upper part of the first tooling to complete the installation of the first tooling, and repeat the above steps to complete the installation of the second tooling;

[0057] When the workpiece is processed for the first time, the first processing is to fix the crossbeam workpiece 20 through the first tooling. When the crossbeam workpiece 20 is fixed by the first tooling, the crossbeam workpiece 20 is placed in the first tooling, with the bottom of the crossbeam workpiece 20 as the plane positioning, the crossbeam workpiece 20 is embedded and placed on the top of the first positioning seat 4, and the side of the crossbeam workpiece 20 is used as the lateral positioning, and the crossbeam workpiece 20 is placed on one side of the cylinder head 10, and then the third oil cylinder 9 on the side is started, and the crossbeam workpiece 20 is pushed by the cylinder head 10 so that the side of the crossbeam workpiece 20 is close to the positioning block, and then the second oil cylinders 7 on both sides work to drive the second pressing plate 8 to press and fix the top two sides of the crossbeam workpiece 20, and then the first head 13 under the crossbeam workpiece 20 rises to support and position the bottom of the crossbeam workpiece 20, and finally the first oil cylinder 5 works to drive the first pressing plate 6 to clamp the middle part of the top side of the crossbeam workpiece 20, and the clamping and fixing of the crossbeam workpiece 20 is completed. When processing the crossbeam workpiece 20, refer to the attached Figure 8 , firstly, the end faces P1 and P7 at both ends of the beam workpiece 20 are milled, and then the second oil cylinder 7 above both sides of the beam workpiece 20 is released, and the planes P2 and P6 at the top of both sides of the beam workpiece 20 are milled to complete the initial processing of the beam workpiece 20;

[0058] When the workpiece is processed for the first time, the second processing is performed to fix the crossbeam workpiece 20 through the second tooling. When the crossbeam workpiece 20 is fixed by the second tooling, the crossbeam workpiece 20 after the initial processing is removed from the upper part of the first tooling, and the crossbeam workpiece 20 is placed in the second tooling, with the two side surfaces of the crossbeam workpiece 20 as the positioning plane, the crossbeam workpiece 20 is embedded and placed on the upper part of the two second positioning seats 14, and the chamfer of the crossbeam workpiece 20 is used as the lateral positioning, and the crossbeam workpiece 20 is clamped with the side surface of the inner second positioning seat 14. Then, the four second headers 19 at the bottom of the crossbeam workpiece 20 rise to support and position the bottom of the crossbeam workpiece 20, and then the fifth cylinders 15 on both sides work to drive the fifth pressing plate 16 to clamp and fix the two sides of the crossbeam workpiece 20, and finally the sixth cylinder 17 works to drive the sixth pressing plate 18 to press down and clamp the top of the crossbeam workpiece 20, completing the clamping and fixing of the crossbeam workpiece 20. When processing the crossbeam workpiece 20, refer to the attached Figure 8 , a side wall P3 and two concave surfaces P4 and P5 of the beam workpiece 20 are milled to complete the secondary processing of the beam workpiece 20.

[0059] In summary, the clamping device adopts a double-station setting, and supports and positions the beam workpiece 20 through the cooperation of multiple cylinders and jacks. The cylinders and jacks match the appearance characteristics of the beam workpiece 20, and can accurately support and position the beam workpiece 20 and reserve processing space, so that the deformation of the beam workpiece 20 during the processing process can be controlled, the product size accuracy is high, the product size stability is good, and the product material cutting processing allowance is small, which can reduce material and tool consumption. In addition, due to the double-station setting and the cylinder drive, two groups of beam workpieces 20 can be clamped and fixed at the same time, and the clamping and positioning process is completed by the cylinder action, and there is no need for manual adjustment and positioning of the beam workpiece 20. The manufacturing process uses special tooling to realize production automation, which greatly improves production efficiency.

[0060] So far, the embodiments of the present invention have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0061] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. 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 front crossbeam manufacturing process, characterized in that: The following steps are involved: S1, pre-dividing the surface of the beam workpiece (20) to be processed into a first convex end face P1 and a second end face P7, two planes P2 and P6, a side wall P3, and two concave surfaces P4 and P5; firstly, clamping and positioning the beam workpiece (20) by a first tool; S2, initial processing, using a milling device to mill the first end face P1 and the second end face P7 of the beam workpiece (20), processing two bosses on the first end face P1 and the second end face P7, and making the dimensional accuracy of the boss on the first end face P1 and the boss on the second end face P7 meet the use requirements, and then using a device to mill two planes P2 and P6 distributed at different positions so that their dimensional accuracy meets the use requirements; S3, clamping and positioning the beam workpiece (20) by using the second tooling to cooperate with the two boss surfaces in step S2 as positioning; S4, secondary processing, using a milling device to perform milling processing on a side wall P3 and two concave surfaces P4, P5 of the beam workpiece (20) so that their dimensional accuracy meets the use requirements.

2. A front crossbeam cutting and clamping device according to claim 1, characterized in that: It comprises a front crossbeam clamp mounting seat (1), a clamping mechanism (2) is arranged on the top of the front crossbeam clamp mounting seat (1), and a crossbeam workpiece (20) is clamped on the upper part of the clamping mechanism (2); The clamping mechanism (2) comprises a first tool and a second tool, the first tool and the second tool are both double-station settings, the first tool comprises a first positioning seat (4), a first oil cylinder (5), a second oil cylinder (7), a third oil cylinder (9), a fourth oil cylinder (11) and a first jack (13), the first oil cylinder (5), the second oil cylinder (7), the third oil cylinder (9) and the fourth oil cylinder (11) are respectively located at specific angles on the outside of the beam workpiece (20), and the first jack (13) is supported on the bottom side of the beam workpiece (20); The second tooling comprises a second positioning seat (14), a fifth oil cylinder (15), a sixth oil cylinder (17) and a second jack (19); the fifth oil cylinder (15) and the sixth oil cylinder (17) are arranged at specific angles on the outside of the beam workpiece (20); and the second jack (19) is supported on the bottom side of the beam workpiece (20).

3. A front crossbeam cutting and clamping device according to claim 2, characterized in that: A mounting bridge plate (3) is provided on the top of the front cross beam fixture mounting seat (1), and the first tooling and the second tooling are both connected to the front cross beam fixture mounting seat (1) via the mounting bridge plate (3).

4. A front crossbeam cutting and clamping device according to claim 3, characterized in that: The first positioning seat (4) is fixedly connected to the top side of the mounting bridge plate (3) by bolts, and the beam workpiece (20) is embedded and placed on the top of the first positioning seat (4). A mounting groove is provided on the top of the first positioning seat (4). The number of the first pins (13) and the mounting grooves is two. The first pins (13) are fixed to the inner side of the mounting groove, and the top of the first pins (13) contacts the bottom of the beam workpiece (20).

5. The front crossbeam cutting and clamping device according to claim 4, characterized in that: The fourth oil cylinder (11) is fixedly connected to the middle part of the front side of the mounting bridge plate (3) by bolts, and the push rod end of the fourth oil cylinder (11) is provided with a spring head (12), and the spring head (12) is fixedly connected to the push rod end of the fourth oil cylinder (11), and the spring head (12) is in conflict with the front side of the beam workpiece (20). The first oil cylinder (5) is fixed to the rear side of the mounting bridge plate (3) by bolts, and the push rod end of the first oil cylinder (5) is hinged with a first pressure plate (6), and the first pressure plate (6) is pressed down and clamped on the top of the rear side of the beam workpiece (20).

6. The front crossbeam cutting and clamping device according to claim 5, characterized in that: The number of the second oil cylinder (7) and the number of the third oil cylinder (9) are both two, and the two third oil cylinders (9) are symmetrically fixed on the front two sides of the mounting bridge plate (3), and the push rod end of the third oil cylinder (9) is fixed with a cylinder head (10), and the cylinder head (10) is in contact with the front two sides of the beam workpiece (20).

7. The front crossbeam cutting and clamping device according to claim 6, characterized in that: The two second oil cylinders (7) are symmetrically fixed on both sides of the rear of the mounting bridge plate (3), and the push rod ends of the two second oil cylinders (7) are connected to the second pressure plates (8), and the second pressure plates (8) are pressed down and clamped on both sides of the top of the beam workpiece (20).

8. The front crossbeam cutting and clamping device according to claim 2, characterized in that: There are two second positioning seats (14), and the two second positioning seats (14) are symmetrically fixed on both sides of the top of the mounting bridge plate (3), and the crossbeam workpiece (20) is embedded and placed on the top of the second positioning seats (14).

9. The front crossbeam cutting and clamping device according to claim 8, characterized in that: The number of the second plugs (19) is four, and the four second plugs (19) are evenly distributed at the bottom of the beam workpiece (20). The four second plugs (19) are all fixedly connected to the top of the mounting bridge plate (3), and the top of the second plug (19) is supported by the bottom of the beam workpiece (20).

10. The front crossbeam cutting and clamping device according to claim 9, characterized in that: There are two fifth oil cylinders (15) and two sixth oil cylinders (17), and the two fifth oil cylinders (15) are symmetrically fixed on the left and right sides of the mounting bridge plate (3). The push rod ends of the two fifth oil cylinders (15) are hinged with fifth pressure plates (16), and the two fifth pressure plates (16) are pressed down and clamped on the top two sides of the beam workpiece (20). The two sixth oil cylinders (17) are symmetrically fixed on the rear two sides of the mounting bridge plate (3), and the push rod ends of the two sixth oil cylinders (17) are hinged with sixth pressure plates (18), and the sixth pressure plates (18) are pressed down and clamped on the top rear side of the beam workpiece (20).

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