An engineering vehicle frame side beam overall assembly tool

Abstract

The utility model discloses an engineering truck frame side beam integral assembly tool relates to engineering truck frame production equipment technical field, and the first branch board positioning group, second branch board positioning group, third branch board positioning group, first mainboard positioning group, second mainboard positioning group, third mainboard positioning group, fourth mainboard positioning group are included in rectangular base, and the utility model discloses through the setting of multiple positioning groups can realize the quick, accurate positioning of frame side beam each part, ensures size accuracy and shape accuracy to improve integral assembly quality, avoids the cumbersome operation of traditional scattered positioning, reduces the time of positioning and calibration, improves the assembly efficiency significantly, can satisfy the demand of large -scale production, guarantees welding quality simultaneously, improves repeatability, reduces the labor intensity, and the use of the utility model has the remarkable economic benefit and social benefit, can effectively promote the technical progress of engineering truck frame manufacturing industry.

Description

Technical Field

[0001] This utility model relates to the technical field of engineering vehicle frame production equipment, specifically to a tooling for the integral assembly of the side beams of an engineering vehicle frame. Background Technology

[0002] The side beams of an engineering vehicle's frame are critical structural components, and their manufacturing precision and assembly quality directly affect the vehicle's overall performance and service life. Traditional frame side beam assembly processes typically employ decentralized positioning and manual welding. However, these traditional assembly processes suffer from the following problems: 1. Low positioning accuracy: Manual positioning is prone to errors, making it difficult to guarantee the dimensional and shape accuracy of the side beams, which affects the overall assembly quality of the frame.

[0003] Low assembly efficiency: Distributed positioning requires multiple adjustments and calibrations, which consumes a lot of time and manpower, resulting in low production efficiency and difficulty in meeting the needs of large-scale production.

[0004] Unstable welding quality: Manual welding is easily affected by the operator's skill level, resulting in inconsistent welding quality, which may lead to weld defects and affect the strength and reliability of the frame.

[0005] Poor repeatability: Due to the lack of unified positioning and assembly standards, it is difficult to maintain consistent assembly quality for each batch of products, which increases the difficulty of quality control.

[0006] Therefore, in order to solve the above problems and improve the assembly efficiency and quality of the side beams of the engineering vehicle frame, it is particularly important to develop an efficient and precise tooling for the overall assembly of the side beams of the frame. Summary of the Invention

[0007] The purpose of this utility model is to provide a tooling for the overall assembly of the side beams of the chassis of engineering vehicles, so as to solve the problems of low positioning accuracy, low assembly efficiency, unstable welding quality and poor repeatability in the traditional assembly process of the side beams of the chassis of engineering vehicles mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a tooling for assembling the side beams of an engineering vehicle frame, comprising a horizontal rectangular base with the following on its top surface: a first support plate positioning group positioned near its left front side, a second support plate positioning group positioned near its left rear side, a third support plate positioning group positioned to the right of the second support plate positioning group, and a first main plate positioning group, a second main plate positioning group, a third main plate positioning group, and a fourth main plate positioning group sequentially positioned to the right of the first and third support plate positioning groups; the first support plate positioning group includes a first positioning stop on the left side facing the right, a first positioning support facing the front on the right rear side of the first positioning stop, and a first positioning support on the right front side. The second support plate positioning assembly includes a second positioning support facing rearward and a first positioning seat on its right front side. A positioning block is located behind the first positioning seat, and a second positioning support facing leftward is located on its right rear side. A first clamping support facing left rearward is located on the right rear side of the second positioning support. The second support plate positioning assembly includes a first positioning stop on the left side facing right. A gap positioning block facing forward is located behind the first positioning stop, a first positioning support facing rearward is located on its right front side, and a third positioning support facing forward is located on its right rear side. A third positioning support facing forward is located on the right side of the third positioning support, and a clamping bracket is located behind it. The first positioning support... A clamping bracket is provided on the right front side of the seat, and a first clamping support is provided on its right side; the third support plate positioning group includes two sets of third positioning supports arranged side to side, with a first positioning stop facing forward on the rear side between the two third positioning supports, and a clamping bracket provided on the right rear side of the third positioning support facing left; the first main board positioning group includes a clamping bracket, a second positioning support, and a first clamping support arranged side to side and facing rear on the front side, and a third positioning support and a second positioning seat arranged side to side and facing forward on the rear side; the second main board positioning group includes a second positioning support, a first clamping support, and a clamping bracket arranged side to side and facing rear on the front side, and a third positioning support and a second positioning seat arranged side to side and facing forward on the rear side; The third mainboard positioning group includes a third positioning support and a first clamping support on the front side; the third mainboard positioning group includes a second positioning support and a first clamping support on the front side, which are arranged left and right and facing the rear side, and a first clamping support and a third positioning support on the rear side, which are arranged left and right and facing the front side; the fourth mainboard positioning group includes a clamping bracket, a first clamping support and a second positioning support on the front side, which are arranged left and right and facing the rear side, and a first clamping support and a third positioning support on the rear side, which are arranged left and right and facing the front side; a first positioning stop facing the left is provided on the right side between the second positioning support and the third positioning support; a circular shim is provided at the middle position of the first support plate positioning group and the second support plate positioning group.

[0009] Preferably, the first positioning stop includes a rectangular first positioning stop base and a rectangular upwardly protruding first pressure plate mounting seat is provided on the left half of its top end. A recessed first positioning stop screw hole is provided at the center of the top surface of the first pressure plate mounting seat and a first positioning stop pressure plate extending horizontally above the right half is fixed by bolts.

[0010] Preferably, the first positioning support includes an L-shaped first positioning support base with a first positioning support clamping bolt passing through the middle of its vertical portion and a first positioning support positioning plate bolted at the top. On the bottom surface of the first positioning support positioning plate, protruding first positioning support baffles are respectively provided on both sides of the vertical portion of the first positioning support base. On the bottom surface of the first positioning support positioning plate, protruding first positioning support positioning blocks are provided on the side away from the first positioning support baffles.

[0011] Preferably, the second positioning support includes an L-shaped second positioning support base. A recessed V-shaped groove is provided at the middle of the top surface of the horizontal portion of the second positioning support base. A second positioning support clamping bolt is provided through the middle of the vertical portion of the second positioning support base, and a horizontal second positioning support positioning plate is provided at the top via a bolt. Second positioning support positioning blocks are provided on both sides of the second positioning support base on the bottom surface of the second positioning support positioning plate. A protruding second positioning support positioning block is provided on the bottom side of the second positioning support positioning plate away from the second positioning support positioning blocks.

[0012] Preferably, the first positioning seat includes a rectangular first positioning seat base, and the top surface of the first positioning seat base has recessed threaded holes near its left and right ends, and first positioning seat locking bolts are installed thereon.

[0013] Preferably, the positioning block includes a positioning block base at the bottom, a protruding positioning block limiting block on the rear half of the top surface of the positioning block base, and a positioning block inclined surface that slopes vertically downwards and backwards on the rear two-thirds of the top surface of the positioning block limiting block.

[0014] Preferably, the first clamping support includes a first clamping support base at the bottom, a horizontal first clamping support top plate at the top of the first clamping support base, a locking bolt at the center of the top surface of the first clamping support top plate, and a first clamping support clamping plate fixed by the locking bolt, and a strip-shaped through hole provided on the first clamping support clamping plate.

[0015] Preferably, the gap positioning block includes a rectangular gap positioning block base, and the front side of the gap positioning block base is provided with a gap positioning groove that is horizontally recessed to the rear side near the upper and lower ends, and the top of the gap positioning block is provided with a fixing bolt that is downwardly penetrating.

[0016] Preferably, the third positioning support includes a rectangular third positioning support base. On the top surface of the third positioning support base, near the front end, there is an upwardly protruding third positioning support limiting block; near the rear end, there is an upwardly protruding third positioning support supporting block; and a rectangular guide block is provided between the third positioning support limiting block and the third positioning support supporting block. A positioning slider that can slide along its axial direction is provided on the rectangular guide block. A recessed slider positioning groove is provided on the top surface of the positioning slider, and an adjusting bolt is provided on the rear side wall of the slider positioning groove. A third positioning support plate is bolted to the top of the positioning support supporting block. On the bottom surface of the third positioning support plate, on both sides of the positioning support supporting block, there are downwardly protruding third positioning support stops; and on the bottom surface away from the end of the third positioning support stops, there is a downwardly protruding third positioning support limiting protrusion.

[0017] Preferably, the clamping bracket includes a clamping bracket base at the bottom, a rotating shaft is provided on the top surface of the clamping bracket base, a rotatable swing clamping rod is sleeved at the top end of the rotating shaft, a vertical clamping sleeve is provided at the end of the swing clamping rod, a clamping shaft is installed in the internal thread of the clamping sleeve, and a clamping block is clamped at the bottom end of the clamping shaft; the second positioning seat includes a vertically arranged second positioning seat upright plate, and a second positioning seat positioning bolt is provided on the second positioning seat upright plate from back to front.

[0018] Compared with the prior art, the beneficial effects of this utility model are: 1. Improve positioning accuracy: By setting up multiple positioning groups, the various components of the frame side beam can be positioned quickly and accurately, ensuring the dimensional and shape accuracy of the side beam, thereby improving the overall assembly quality of the frame; 2. Improved assembly efficiency: The integrated assembly tooling concentrates multiple components of the frame side beam on one platform for assembly, avoiding the cumbersome operation of traditional decentralized positioning, reducing positioning and calibration time, significantly improving assembly efficiency, and meeting the needs of large-scale production. 3. Ensure welding quality: Each component of the positioning assembly ensures the positional stability of each part of the side beam during the welding process, reduces welding deformation, improves the stability of welding quality, and thus enhances the strength and reliability of the frame; 4. Improved repeatability: This invention can ensure that the assembly quality of the side beams of the frame remains consistent in each batch, thereby improving the repeatability and consistency of the product and facilitating quality control; 5. Reduced labor intensity: Traditional manual positioning and welding work is physically demanding, easily causing operator fatigue and affecting work efficiency and quality; this utility model reduces manual operation, lowers labor intensity, and improves work comfort through mechanical positioning and clamping devices; In summary, the engineering vehicle frame side beam assembly tooling of this utility model improves positioning accuracy, assembly efficiency, welding quality, and product repeatability while reducing labor intensity, resulting in significant economic and social benefits and effectively promoting technological progress in the engineering vehicle frame manufacturing industry. Attached Figure Description

[0019] Figure 1 This is an isometric drawing of the present invention; Figure 2 This is a top view of the present invention; Figure 3 for Figure 2 Sectional view of AA; Figure 4 for Figure 2 The main view; Figure 5 for Figure 4 Sectional view of BB; Figure 6 for Figure 4 The right view; Figure 7 This is a schematic diagram of the first positioning stop; Figure 8 This is a schematic diagram of the first positioning support; Figure 9 This is a schematic diagram of the second positioning support; Figure 10 This is a schematic diagram of the first positioning seat; Figure 11 This is a schematic diagram of the positioning block; Figure 12 This is a schematic diagram of the first clamping support; Figure 13 This is a schematic diagram of the gear positioning block; Figure 14 This is a schematic diagram of the third positioning support; Figure 15 This is a schematic diagram of the clamping bracket; Figure 16 This is a schematic diagram of the second positioning seat; In the diagram: Rectangular base-1, First support plate positioning group-2, First positioning stop-21, First positioning stop base-211, First pressure plate mounting seat-212, First positioning stop pressure plate-213, First positioning support-22, First positioning support base-221, First positioning support clamping bolt-222, First positioning support positioning plate-223, First positioning support baffle-224, First positioning support positioning block-225, Second positioning support-23, Second positioning support base-231, Second positioning support V Groove-232, Second positioning support tightening bolt-233, Second positioning support positioning plate-234, Second positioning support positioning stop-235, Second positioning support positioning block-236, First positioning seat-24, First positioning seat base-241, First positioning seat locking bolt-242, Positioning block-25, Positioning block base-251, Positioning block limiting block-525, Positioning block inclined surface-253, First pressing support-26, First pressing support base-261, First pressing support top plate-262. First clamping support clamping plate -263, second support plate positioning group -3, gap positioning block -31, gap positioning block base -311, gap positioning groove -312, fixing bolt -313, third positioning support -32, third positioning support base -321, third positioning support limit block -322, third positioning support support block -323, rectangular guide block -324, positioning slider -325, slider positioning groove -326, adjusting bolt -327, third positioning support plate -328, third positioning support stop Block-329, Third positioning support limiting protrusion-320, Pressing bracket-33, Pressing bracket base-331, Rotating shaft-332, Swinging pressing rod-333, Pressing sleeve-334, Pressing shaft-335, Pressing block-336, Third support plate positioning group-4, First main board positioning group-5, Second positioning seat-51, Second positioning seat upright plate-511, Second positioning seat positioning bolt-512, Second main board positioning group-6, Third main board positioning group-7, Fourth main board positioning group-8, Raising block-9. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

[0021] Please refer to Figure 1-16 , Figure 1 This is an isometric drawing of the present invention; Figure 2 This is a top view of the present invention; Figure 3 for Figure 2 Sectional view of AA; Figure 4 for Figure 2 The main view; Figure 5 for Figure 4Sectional view of BB; Figure 6 for Figure 4 The right view; Figure 7 This is a schematic diagram of the first positioning stop; Figure 8 This is a schematic diagram of the first positioning support; Figure 9 This is a schematic diagram of the second positioning support; Figure 10 This is a schematic diagram of the first positioning seat; Figure 11 This is a schematic diagram of the positioning block; Figure 12 This is a schematic diagram of the first clamping support; Figure 13 This is a schematic diagram of the gear positioning block; Figure 14 This is a schematic diagram of the third positioning support; Figure 15 This is a schematic diagram of the clamping bracket; Figure 16 This is a schematic diagram of the second positioning seat.

[0022] A side beam for an engineering vehicle frame includes two side beam main boards arranged vertically opposite each other. Side beam side plates are vertically arranged along the front and rear sides between the two side beam main boards to connect the two side beam main boards into one unit. The side beam main board includes a main board body arranged in a trapezoidal shape. A first support plate extends to the left front side and a second support plate extends to the left rear side at the left end of the main board body. A third support plate extends to the rear side between the main board body and the second support plate.

[0023] This utility model provides a tooling for assembling the side beams of an engineering vehicle frame, used for assembling the side beams of the aforementioned engineering vehicle frame; it includes a horizontal rectangular base 1 with the following on its top surface: a first support plate positioning group 2, located near its left side and front side, for assembling the first support plate and the side beam side plate; a second support plate positioning group 3, located near its left side and rear side, for assembling the second support plate and the side beam side plate; a third support plate positioning group 4, located to the right of the second support plate positioning group 3, for assembling the third support plate and the side beam side plate; and a first main board positioning group 5, a second main board positioning group 6, a third main board positioning group 7, and a fourth main board positioning group 8, sequentially arranged to the right of the first support plate positioning group 2 and the third support plate positioning group 4, for assembling and fixing the front and rear sides of the main board body.

[0024] The first support plate positioning group 2 includes a first positioning stop 21 located on the far left and facing to the right. A first positioning support 22 facing forward is provided on the right rear side of the first positioning stop 21. A second positioning support 23 facing rear is provided on the right front side of the first positioning stop 21. A first positioning seat 24 is provided on the right front side of the second positioning support 23. A positioning block 25 is provided on the rear side of the first positioning seat 24. A second positioning support 23 facing left is provided on the right rear side of the positioning block 25. A first pressing support 26 facing left rear is provided on the right rear side of the second positioning support 23.

[0025] The second support plate positioning group 3 includes a first positioning stop 21 located on the left and facing the right. A gap positioning block 31 facing the front is provided on the rear side of the first positioning stop 21. A first positioning support 22 facing the rear is provided on the right front side of the first positioning stop 21. A third positioning support 32 facing the front is provided on the right rear side of the first positioning support 22. A third positioning support 32 facing the front is provided on the right side of the third positioning support 32 and a clamping bracket 33 is provided on its rear side. A clamping bracket 33 is provided on the right front side of the first positioning support 22, and a first clamping support 26 is provided on the right side of the clamping bracket 33.

[0026] The third support plate positioning group 4 includes a third positioning support 32 located on the left and facing the right, and a third positioning support 32 located on the right and facing the left, which are arranged opposite each other. A first positioning stop 21 facing the front is provided on the rear side between the two third positioning supports 32, and a clamping bracket 33 is provided on the right rear side of the third positioning support 32 facing the left.

[0027] The first motherboard positioning group 5 includes a clamping bracket 33 disposed near the front side, a second positioning support 23 facing the rear side disposed on the right side of the clamping bracket 33, a first clamping support 26 facing the rear side disposed on the right side of the second positioning support 23, a third positioning support 32 facing the front side disposed on the rear side of the second positioning support 23, and a second positioning seat 51 facing the front disposed on the rear side of the first clamping support 26.

[0028] The second motherboard positioning group 6 includes a second positioning support 23 located on the front side and facing the rear side, a first pressing support 26 facing the rear side located on the right side of the second positioning support 23, and a pressing bracket 33 located on the right side of the first pressing support 26; a third positioning support 32 facing the front side located on the rear side of the second positioning support 23, and a first pressing support 26 facing the front side located on the rear side of the first pressing support 26.

[0029] The third motherboard positioning group 7 includes a second positioning support 23 located on the front side and facing the rear side, and a first pressing support 26 located on the rear side and facing the front side, which are arranged in a front-to-back configuration. It also includes a first pressing support 26 located on the front side and facing the rear side, and a third positioning support 32 located on the rear side and facing the front side, which are arranged in a front-to-back configuration on the right side of the second positioning support 23.

[0030] The fourth motherboard positioning group 8 includes a clamping bracket 33 located on the front side. On the right side of the clamping bracket 33, there are two first clamping supports 26 located on the front and facing the rear, which are arranged in a front-to-back configuration. On the right side of the two first clamping supports 26, there are two second positioning supports 23 located on the front and facing the rear, which are arranged in a front-to-back configuration. On the right side between the second positioning supports 23 and the third positioning supports 32, there is a first positioning stop 21 facing the left.

[0031] The first positioning stop 21 includes a rectangular first positioning stop base 211. The left half of the top of the first positioning stop base 211 is provided with a rectangular upwardly protruding first pressure plate mounting seat 212. The center of the top surface of the first pressure plate mounting seat 212 is provided with a recessed first positioning stop screw hole, and a first positioning stop pressure plate 213 extending horizontally above the right half is fixed with bolts.

[0032] The first positioning support 22 includes an L-shaped first positioning support base 221. A first positioning support clamping bolt 222 is provided through the middle of the vertical part of the first positioning support base 221, and a first positioning support positioning plate 223 is provided at the top end by bolts. On the bottom surface of the first positioning support positioning plate 223, protruding first positioning support baffles 224 are respectively provided on both sides of the vertical part of the first positioning support base 221. On the bottom surface of the first positioning support positioning plate 223, protruding first positioning support positioning blocks 225 are provided on the side away from the first positioning support baffles 224.

[0033] The second positioning support 23 includes an L-shaped second positioning support base 231. A recessed second positioning support V-shaped groove 232 is provided at the middle position of the top surface of the horizontal part of the second positioning support base 231. A second positioning support clamping bolt 233 is provided through the middle position of the vertical part of the second positioning support base 231. A horizontal second positioning support positioning plate 234 is provided at the top position by a bolt. A second positioning support positioning block 235 is provided on both sides of the second positioning support base 231 on the bottom surface of the second positioning support positioning plate 234. A protruding second positioning support positioning block 236 is provided on the bottom side of the second positioning support positioning plate 234 away from the second positioning support positioning block 235.

[0034] The first positioning seat 24 includes a rectangular first positioning seat base 241. The top surface of the first positioning seat base 241 has recessed threaded holes near its left and right ends, and first positioning seat locking bolts 242 are installed thereon.

[0035] The positioning block 25 includes a positioning block base 251 at the bottom, and a protruding positioning block limiting block 525 is provided on the rear half of the top surface of the positioning block base 251. The rear two-thirds of the top surface of the positioning block limiting block 525 has a positioning block inclined surface 253 that is vertically inclined downwards and backwards.

[0036] The first clamping support 26 includes a first clamping support base 261 at the bottom, a horizontal first clamping support top plate 262 at the top of the first clamping support base 261, a locking bolt at the center of the top surface of the first clamping support top plate 262, and a first clamping support clamping plate 263 fixed by the locking bolt, and a strip-shaped through hole on the first clamping support clamping plate 263.

[0037] The gap positioning block 31 includes a rectangular gap positioning block base 311. The front side of the gap positioning block base 311 is provided with a gap positioning groove 312 that is horizontally recessed to the rear side near the upper and lower ends. The top of the gap positioning block 31 is provided with a fixing bolt 313 that is downwardly through.

[0038] The third positioning support 32 includes a rectangular third positioning support base 321. A protruding third positioning support limiting block 322 is provided near the front end of the top surface of the third positioning support base 321, and a protruding third positioning support block 323 is provided near the rear end. A rectangular guide block 324 is provided between the third positioning support limiting block 322 and the third positioning support block 323. A positioning slider 325 that can slide along its axial direction is provided on the rectangular guide block 324. A recessed slider positioning groove 326 is provided on the top surface of 25, and an adjusting bolt 327 is provided on the rear side wall of the slider positioning groove 326; a third positioning support plate 328 is bolted to the top of the positioning support block 323, and a protruding third positioning support block 329 is provided on the bottom surface of the third positioning support plate 328 on both sides of the positioning support block 323, and a protruding third positioning support limiting protrusion 320 is provided on the bottom surface away from the third positioning support block 329.

[0039] The clamping bracket 33 includes a clamping bracket base 331 at the bottom. A rotating shaft 332 is provided on the top surface of the clamping bracket base 331. A rotatable swing clamping rod 333 is sleeved on the top end of the rotating shaft 332. A vertical clamping sleeve 334 is provided at the end of the swing clamping rod 333. A clamping shaft 335 is installed on the internal thread of the clamping sleeve 334. A clamping block 336 is clamped at the bottom end of the clamping shaft 335.

[0040] The second positioning seat 51 includes a vertically arranged second positioning seat upright plate 511, and a second positioning seat positioning bolt 512 extending from back to front on the second positioning seat upright plate 511.

[0041] In addition, a circular shim 9 is set at the middle position of the first support plate positioning group 2 and the second support plate positioning group 3 respectively.

[0042] Although embodiments of the present invention have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, it will be understood by those skilled in the art that all other embodiments obtained by making various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention and without creative effort are within the scope of protection of the present invention.

Claims

1. A tooling for integral assembly of the side beams of an engineering vehicle frame, characterized in that: The system includes a horizontal rectangular base (1) and on its top surface are: a first support plate positioning group (2) located near its left front side, a second support plate positioning group (3) located near its left rear side, a third support plate positioning group (4) located to the right of the second support plate positioning group (3), and a first main board positioning group (5), a second main board positioning group (6), a third main board positioning group (7), and a fourth main board positioning group (8) sequentially located to the right of the first support plate positioning group (2) and the third support plate positioning group (4); the first support plate positioning group (2) includes a first positioning stop (21) on the left side and facing the right side, and a first positioning support (22) facing the front side is located on the right rear side of the first positioning stop (21). The second support plate positioning group (3) includes a second positioning support (23) facing the rear side and a first positioning seat (24) on its right front side. A positioning block (25) is provided on the rear side of the first positioning seat (24), and a second positioning support (23) facing the left side is provided on its right rear side. A first pressing support (26) facing the left rear side is provided on the right rear side of the second positioning support (23). The second support plate positioning group (3) includes a first positioning stop (21) on the left side and facing the right side. A gap positioning block (31) facing the front side is provided on the rear side of the first positioning stop (21), a first positioning support (22) facing the rear side is provided on its right front side, and a third positioning support (32) facing the front side is provided on its right rear side. The third positioning support (32) has a front-facing third positioning support (32) on its right side and a clamping bracket (33) on its rear side; the first positioning support (22) has a clamping bracket (33) on its right front side and a first clamping support (26) on its right side; the third support plate positioning group (4) includes two sets of third positioning supports (32) arranged facing each other on the left and right, a first positioning stop (21) facing forward is arranged on the rear side between the two third positioning supports (32), and a clamping bracket (33) is arranged on the right rear side of the third positioning support (32) facing left; the first main board positioning group (5) includes a clamping bracket (33) arranged on the left and right side facing the rear side, the third positioning support (32) facing left and right and a clamping bracket (33) on its rear side, the first main board positioning group (5) includes a clamping bracket (33) arranged on the left and right side facing the front and a clamping bracket (33) facing the ... The second mainboard positioning group (6) includes a second positioning support (23), a first pressing support (26), and a pressing bracket (33), a third positioning support (32) and a second positioning seat (51) arranged to the left and right on the rear side and facing the front side; the third mainboard positioning group (7) includes a second positioning support (23), a first pressing support (26) and a pressing bracket (33), a third positioning support (32) and a first pressing support (26) arranged to the left and right on the rear side and facing the front side;The fourth mainboard positioning group (8) includes a clamping bracket (33) positioned to the left and right on the front side and facing the rear, a first clamping support (26) and a second positioning support (23), a first clamping support (26) and a third positioning support (32) positioned to the left and right on the rear side and facing the front, and a first positioning stop (21) facing the left is provided on the right side between the second positioning support (23) and the third positioning support (32); a circular shim (9) is provided at the middle position of the first support plate positioning group (2) and the second support plate positioning group (3).

2. The integral assembly tooling for the side beams of the engineering vehicle frame according to claim 1, characterized in that: The first positioning stop (21) includes a rectangular first positioning stop base (211) and a rectangular upward protruding first pressure plate mounting seat (212) is provided on the left half of its top end. The center of the top surface of the first pressure plate mounting seat (212) is provided with a recessed first positioning stop screw hole and a first positioning stop pressure plate (213) extending horizontally above the right half is fixed by bolts.

3. The integral assembly tooling for the side beams of the engineering vehicle frame according to claim 2, characterized in that: The first positioning support (22) includes an L-shaped first positioning support base (221) with a first positioning support clamping bolt (222) running through the middle of its vertical portion and a first positioning support positioning plate (223) bolted to the top. On the bottom surface of the first positioning support positioning plate (223), on both sides of the vertical portion of the first positioning support base (221), there are protruding first positioning support baffles (224). On the bottom surface of the first positioning support positioning plate (223), on the side away from the first positioning support baffles (224), there are protruding first positioning support positioning blocks (225).

4. The integral assembly tooling for the side beams of the engineering vehicle frame according to claim 1, characterized in that: The second positioning support (23) includes an L-shaped second positioning support base (231). A recessed second positioning support V-shaped groove (232) is provided at the middle position of the top surface of the horizontal part of the second positioning support base (231). A second positioning support clamping bolt (233) is provided through the middle position of the vertical part of the second positioning support base (231), and a horizontal second positioning support positioning plate (234) is provided at the top position by a bolt. A second positioning support positioning block (235) is provided on both sides of the second positioning support base (231) on the bottom surface of the second positioning support positioning plate (234). A protruding second positioning support positioning block (236) is provided on the bottom side of the second positioning support positioning plate (234) away from the second positioning support positioning block (235).

5. The integral assembly tooling for the side beams of the engineering vehicle frame according to claim 1, characterized in that: The first positioning seat (24) includes a rectangular first positioning seat base (241). The top surface of the first positioning seat base (241) is provided with recessed threaded holes near its left and right ends and is fitted with first positioning seat locking bolts (242).

6. The integral assembly tooling for the side beams of the engineering vehicle frame according to claim 1, characterized in that: The positioning block (25) includes a positioning block base (251) at the bottom, and a protruding positioning block limiting block (525) is provided on the rear half of the top surface of the positioning block base (251). The rear two-thirds of the top surface of the positioning block limiting block (525) is a positioning block inclined surface (253) that is vertically inclined to the rear and downward.

7. The integral assembly tooling for the side beams of the engineering vehicle frame according to claim 1, characterized in that: The first clamping support (26) includes a first clamping support base (261) at the bottom, and a horizontal first clamping support top plate (262) is provided at the top of the first clamping support base (261). A locking bolt is provided at the center of the top surface of the first clamping support top plate (262), and a first clamping support clamping plate (263) is fixed by the locking bolt. A strip-shaped through hole is provided on the first clamping support clamping plate (263).

8. The integral assembly tooling for the side beams of the engineering vehicle frame according to claim 1, characterized in that: The gap positioning block (31) includes a rectangular gap positioning block base (311). The front side of the gap positioning block base (311) is provided with gap positioning grooves (312) that are horizontally recessed to the rear side near the upper and lower ends. The top of the gap positioning block (31) is provided with a fixing bolt (313) that is downwardly through.

9. The integral assembly tooling for the side beams of the engineering vehicle frame according to claim 1, characterized in that: The third positioning support (32) includes a rectangular third positioning support base (321). A protruding third positioning support limiting block (322) is provided near the front end of the top surface of the third positioning support base (321), and a protruding third positioning support support block (323) is provided near the rear end. A rectangular guide block (324) is provided between the third positioning support limiting block (322) and the third positioning support support block (323). A positioning slider (325) that can slide along its axial direction is provided on the rectangular guide block (324). 25) has a recessed slider positioning groove (326) on its top surface, and an adjusting bolt (327) is provided on the rear side wall of the slider positioning groove (326); the top end of the positioning support block (323) is bolted to a third positioning support plate (328), and the bottom surface of the third positioning support plate (328) has a protruding third positioning support block (329) on both sides of the positioning support block (323), and a protruding third positioning support limiting protrusion (320) is provided on the bottom surface away from the third positioning support block (329).

10. The integral assembly tooling for the side beams of the engineering vehicle frame according to claim 1, characterized in that: The clamping bracket (33) includes a clamping bracket base (331) at the bottom. A rotating shaft (332) is provided on the top surface of the clamping bracket base (331). A rotatable swing clamping rod (333) is sleeved on the top end of the rotating shaft (332). A vertical clamping sleeve (334) is provided at the end of the swing clamping rod (333). A clamping shaft (335) is installed in the internal thread of the clamping sleeve (334). A clamping block (336) is clamped at the bottom end of the clamping shaft (335). The second positioning seat (51) includes a vertically arranged second positioning seat plate (511) on the left and right. A second positioning seat positioning bolt (512) is provided on the second positioning seat plate (511) from back to front.

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