Tool device for clamping and positioning large thin-wall structural part

Abstract

The invention discloses a tool device for clamping and positioning a large thin-wall structural member, which comprises a working table, a hydraulic pipeline, a branch oil path block, a perforated plate, a main oil path, a hydraulic clamping unit, a functional upright post and a detection tool, and is characterized in that the perforated plate is arranged on the working table and is provided with a plurality of groups of uniformly distributed holes; the main oil way is installed on the working table, the multiple branch oil way blocks and the hydraulic pipeline are arranged on the side face of the working table, the hydraulic pipeline comprises a hydraulic hose and a hydraulic hard pipe, and the main oil way is connected to the branch oil way blocks through the hydraulic hard pipe. The branch manifold block is connected to the hydraulic clamping unit through the hydraulic hose, the hydraulic clamping unit is connected to the corresponding functional stand column, the functional stand column comprises an end stand column body, a tail stand column body, a lateral stand column body and an auxiliary stand column body, the clamping requirements of various types of products can be met, and a large amount of manufacturing cost and storage cost are saved.

Description

Technical Field

[0001] The invention belongs to the field of automated supporting equipment, and in particular relates to a tooling device for clamping and positioning large thin-walled structural parts. Background Art

[0002] In the technical fields of engineering machinery, automation equipment, etc., large thin-walled structural parts are used in aerial work machinery, cranes, pumps and other engineering machinery and equipment; the conventional cutting and processing fixtures for these parts are mostly one-to-one and single-machine use, and such fixtures cannot meet the clamping needs of multiple types of products. Therefore, different products require different cutting and processing fixtures, and a large number of cutting and processing fixtures not only take up space, but also greatly increase the design and manufacturing costs. Summary of the invention

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a tooling device for clamping and positioning large thin-walled structural parts, which can meet the clamping requirements of various types of products and save a lot of manufacturing costs and storage costs.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a tooling device for clamping and positioning large thin-walled structural parts, comprising a workbench, a hydraulic pipeline, an oil distribution block, a porous plate, a main oil circuit, a hydraulic clamping unit, a functional column and a detection tool, wherein the porous plate is arranged on the workbench, and a plurality of groups of evenly distributed holes are provided on the porous plate for connecting the functional column with the workbench, the main oil circuit is installed on the workbench, and a plurality of the oil distribution blocks and hydraulic pipelines are arranged on the side of the workbench, the hydraulic pipeline comprises a hydraulic hose and a hydraulic hard pipe, the main oil circuit is connected to the oil distribution block through the hydraulic hard pipe, the oil distribution block is connected to the hydraulic clamping unit through the aforementioned hydraulic hose, and the hydraulic clamping unit is connected to the corresponding functional column, and the functional column comprises an end column, a tail column, a lateral column, and an auxiliary support column,

[0005] The hydraulic clamping element includes an end clamping cylinder module, a side clamping cylinder module, a main clamping cylinder module, an auxiliary support cylinder module and an auxiliary clamping cylinder module, and the return oil of all the above cylinders is connected to the oil return circuit;

[0006] The end column comprises an end bottom column, an end adjustment bottom plate, an end top column, an end contour seat and an end support screw, the end adjustment bottom plate is mounted on the end bottom column, the end top column, the end contour seat and the end support screw are all mounted on the end adjustment bottom plate, the end adjustment bottom plate is provided with a plurality of through holes for adjusting the positions of the end top column, the end contour seat and the end support screw, the end contour seat is mounted on the center line of the end adjustment bottom plate, and end support screws are provided on both sides of the end contour seat, three end top columns are provided on the same side of the end support screw and the end contour seat, the middle end top column is connected to an end clamping cylinder module, and the end top columns on both sides thereof are connected to main clamping cylinder modules;

[0007] The tail column includes two side tail columns and an intermediate tail column, the side tail columns include side bottom columns, side intermediate columns, side top columns, side support screws and a main clamping cylinder module, the side bottom columns are connected to the side intermediate columns, the side intermediate columns are connected to the side top columns, one side of the side top columns is provided with a side support screw, and the top of the side top columns is provided with a main clamping cylinder module, the side tail columns include side tail bottom columns, side tail adjustment bottom plates, side tail equal height seats and side tail end positioning mechanisms, the side tail adjustment bottom plates are installed on the side tail bottom columns, the side tail equal height seats and the side tail end positioning mechanisms are installed on the side tail adjustment bottom plates, and the side tail adjustment bottom plates are provided with a plurality of through holes for adjusting the positions of the side tail equal height seats and the side tail end positioning mechanisms;

[0008] The lateral column includes a column body, a guide block and a positioning screw, wherein the positioning screw is horizontally installed on one side of the column body, a groove for the positioning screw to slide up and down is provided on the column body, and a vertical guide block is installed on the column body on the side opposite to the positioning screw;

[0009] The auxiliary support column comprises two side auxiliary support columns and one end auxiliary support column, the side auxiliary support column comprises a side auxiliary support column body, the end auxiliary support column comprises an auxiliary support bottom column, an auxiliary support middle column, and an auxiliary support top column, the auxiliary support bottom column is connected to the auxiliary support middle column, the auxiliary support middle column is connected to the auxiliary support top column, auxiliary clamping cylinders are arranged on the tops of the side auxiliary support columns and the auxiliary support top columns, and auxiliary support cylinders corresponding to their auxiliary clamping cylinders are arranged on the sides of the side auxiliary support columns and the auxiliary support top columns;

[0010] The detection tool is used to detect whether the processing position meets the processing requirements after the workpiece is clamped.

[0011] In the above technical solution, the oil circuit block includes an oil circuit block body, a sub-quick plug connector, and a common connector. One end of the hydraulic hose is connected to the oil circuit block through the sub-quick plug connector, and the common connector is connected to the main oil circuit through a hydraulic hard pipe.

[0012] In the above technical solution, the outer jacket of the hydraulic hose is provided with a metal sheath.

[0013] In the above technical solution, the porous plate includes two side porous plates and a middle porous plate, and the two side porous plates are installed on both sides of the middle porous plate.

[0014] In the above technical solution, the holes on the porous plate are all M24 threaded through holes, and numbers are provided on the holes.

[0015] In the above technical solution, the main oil circuit includes a main quick-connect connector, a pressure gauge, and a main oil circuit block. The main oil circuit block is connected to the hydraulic station, and several main quick-connect connectors are installed on the main oil circuit block. A pressure gauge is connected to the pipeline of each main quick-connect connector. The bottom of the above-mentioned main oil circuit block is connected to the sub-oil circuit block.

[0016] In the above technical solution, an accumulator is connected to the pipeline of each main quick-connect connector.

[0017] In the above technical solution, an oil receiving pan is provided below the main quick-connect connector, and the oil receiving pan is connected to the main oil circuit block.

[0018] In the above technical solution, a protective cover is connected to the main oil circuit block, and the protective cover covers the accumulator and the pressure gauge.

[0019] The beneficial effects of the present invention are as follows: the device adopts a modular design, and various functional modules are adjusted, arranged and combined according to the characteristics of the product, and installed in corresponding positions, which can be compatible with the clamping and positioning requirements of products of the same type but different specifications and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the general assembly structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the hydraulic oil circuit of the present invention;

[0022] Figure 3 It is a schematic diagram of the layout of the porous plate and functional columns of the present invention;

[0023] Figure 4 It is a schematic diagram of the oil distribution block of the present invention;

[0024] Figure 5 It is a schematic diagram of the main oil circuit of the present invention;

[0025] Figure 6 is a schematic diagram of an end column of the present invention;

[0026] Figure 7 It is a schematic diagram of the tail column of the present invention;

[0027] Figure 8 It is a schematic diagram of the auxiliary support column of the present invention;

[0028] Fig. 9 It is a schematic diagram of a lateral column of the present invention.

[0029] Among them: 01. Workbench;

[0030] 02, hydraulic pipeline; 0201, hydraulic hard pipe; 0202, hydraulic hose;

[0031] 03, oil manifold block; 0301 oil manifold block body; 0302, quick-connect fitting; 0303, common fitting;

[0032] 04, porous plate; 0401, edge porous plate; 0402, middle porous plate;

[0033] 05, main oil circuit; 0501, protective cover; 0502, main quick-connect connector; 0503, accumulator; 0504, pressure gauge; 0505, main oil circuit block; 0506, oil pan;

[0034] 06, hydraulic clamping element; 0601, end clamping cylinder module; 0602, side clamping cylinder module; 0603, main clamping cylinder module; 0604, auxiliary support cylinder module; 0605, auxiliary clamping cylinder module;

[0035] 07, functional column; 0701, end column; 070101, end bottom column; 070102, end adjustment bottom plate; 070103, end top column; 070104, end equal height seat; 070105, end support screw;

[0036] 0702, tail column; 070201, side bottom column; 070202, side middle column; 070203, side top column; 070204, side support screw; 070205, side tail bottom column; 070206, side tail adjustment bottom plate; 070207, side tail equal height seat; 070208, side tail end positioning mechanism;

[0037] 0703, lateral column; 070301, lateral column body; 070302, guide block; 070303, positioning screw;

[0038] 0704, auxiliary support column; 070401, side auxiliary support column body; 070402, auxiliary support bottom column; 070403, auxiliary support middle column; 070404, auxiliary support top column;

[0039] 08. Testing tools; 09. Workpiece. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0041] like Figure 1 The tooling device shown is used for clamping and positioning large thin-walled structural parts, including a workbench 01, a hydraulic pipeline 02, 8 sets of oil distribution blocks 03, a porous plate 04, a main oil circuit 05, a hydraulic clamping unit 06, a functional column 07 and a detection tool 08. The porous plate 04 is arranged on the workbench 01, and the porous plate 04 is provided with a plurality of groups of evenly distributed holes for connecting the functional column 07 with the workbench 01. The main oil circuit 05 is installed on the workbench 01, and several of the oil distribution blocks 03 and the hydraulic pipeline 02 are arranged on the side of the workbench 01. The hydraulic pipeline 02 includes a hydraulic hose 0201 and a hydraulic hard pipe 0202. The main oil circuit 05 is connected to the oil distribution block 03 through the hydraulic hard pipe 0202, and the oil distribution block 03 is connected to the hydraulic clamping unit 06 through the aforementioned hydraulic hose 0201. The hydraulic clamping unit 06 is connected to the corresponding functional column 07, as shown in FIG. Figure 3 As shown, the functional column 07 includes an end column 0701, a tail column 0702, a lateral column 0703, and an auxiliary support column 0704.

[0042] like Figure 2 As shown, the hydraulic clamping element 06 mainly includes a set of end clamping cylinder modules 0601, two sets of side clamping cylinder modules 0602, four sets of main clamping cylinder modules 0603, three sets of auxiliary support cylinder modules 0604 and three sets of auxiliary clamping cylinder modules 0605.

[0043] like Figure 6 As shown, the end column 0701 includes an end bottom column 070101, an end adjustment base plate 070102, three sets of end top columns 070103, an end equal height seat 070104 and two sets of end support screws 070105. The end adjustment base plate 070102 is installed on the end bottom column 070101, and the end top column 070103, the end equal height seat 070104 and the end support screw 070105 are all installed on the end adjustment base plate. The end adjustment base plate 070102 is provided with a plurality of through holes for adjusting the end top The positions of the column 070103, the end contour seat 070104 and the end support screw 070105, the end contour seat 070104 is installed on the center line of the end adjustment base plate, and the end support screws 070105 are arranged on both sides of the end contour seat 070104, and three end top columns 070103 are arranged on the same side of the end support screw 070105 and the end contour seat 070104, the end top column 070103 in the middle is connected to the end clamping cylinder module 0601, and the end top columns on both sides thereof are connected to the main clamping cylinder modules 0603;

[0044] like Figure 7 As shown, the tail column 0702 includes two side tail columns and one middle tail column, and the side tail columns include a side bottom column 070201, a side middle column 070202, a side top column 070203, a side support screw 070204 and a main clamping cylinder module 0603. The side bottom column 070201 is connected to the side middle column 070202, and the side middle column 070202 is connected to the side top column 070203. A side support screw 070204 is provided on one side of the side top column 070203, and a main clamping cylinder module 0603 is provided on the top of the side top column 070203. The side tail column includes a side tail bottom column 070205, a side tail adjustment bottom plate 070206, a side tail equal height seat 070207 and a side tail end positioning mechanism 070208. The side tail adjustment bottom plate 070206 is installed on the side tail bottom column 070205, the side tail equal height seat 070207 and the side tail end positioning mechanism 070208 are installed on the side tail adjustment bottom plate 070206, and the side tail adjustment bottom plate 070206 is provided with a plurality of through holes for adjusting the positions of the side tail equal height seat 070207 and the side tail end positioning mechanism 070208.

[0045] like Figure 8 As shown, the lateral column 0703 includes a lateral column body 070301 and a guide block 070302. There are 4 groups of lateral columns, wherein two lateral columns on the same side are provided with positioning screws 070303, wherein the positioning screws 070303 are horizontally mounted on one side of the lateral column body 070301, and the lateral column body 070301 is provided with a groove for the positioning screw 070303 to slide up and down, and a vertical guide block 070302 is installed on the lateral column body 070301 on the side opposite to the positioning screw 070303, and the two lateral columns on the other side are connected with the side clamping cylinder module 0602;

[0046] like Fig. 9As shown, the auxiliary support column 0704 includes two side auxiliary support columns and one end auxiliary support column, the side auxiliary support column includes a side auxiliary support column body 070401, the end auxiliary support column includes an auxiliary support bottom column 070402, an auxiliary support middle column 070403, and an auxiliary support top column 070404, the auxiliary support bottom column is connected to the auxiliary support middle column, the auxiliary support middle column is connected to the auxiliary support top column, and the top of the side auxiliary support column body 070401 and the auxiliary support top column 070404 are connected to each other. Auxiliary clamping cylinder modules 0605 are provided on the sides of the auxiliary support column body 070401 and the auxiliary support top column 070404, which are corresponding to the auxiliary clamping cylinder modules 0605. The two groups of oil cylinders correspond to each other and are fixed up and down; the auxiliary support bottom column 070402, the auxiliary support middle column 070403 and the auxiliary support top column 070404 can be used in combination of some of them or in combination with other columns on the 07 functional column as needed;

[0047] The detection tool 08 is used to detect whether the processing position meets the processing requirements after the workpiece 09 is clamped. The horizontal state of the processing position is confirmed by the detection tool 08, and the support screw 070105 and the support screw 070204 are adjusted according to the horizontal state of the workpiece until the workpiece is adjusted to the required state;

[0048] The end equal height seat 070104 on the end column 0701 and the two side tail equal height seats 070207 on the tail column 0702 form a three-point support state, which can ensure that the upper surface of the 09 workpiece is at the same height as the theoretical level under the support of three points.

[0049] Functional columns 07 include a set of end columns 0701, a set of tail columns 0702, four sets of lateral columns 0703, and three sets of auxiliary support columns 0704. The functional columns 07 are all installed on the porous plate 04 and connected by M24 bolts. The functional columns 07 can be moved on the porous plate 04 according to the clamping requirements. The hydraulic clamping element 06 is installed on the functional column 07. When the functional column 07 moves on the porous plate 04, the hydraulic hose 0201 on the hydraulic clamping element 06 needs to be connected to the nearest adjacent oil distribution block 03.

[0050] like Figure 4 As shown, the oil-dividing block 03 includes an oil-dividing block body 0301, a quick-connect fitting 0302, and a common fitting 0303. One end of the hydraulic hose 0201 is connected to the oil-dividing block 03 through the quick-connect fitting 0302, and the common fitting 0303 is connected to the main oil circuit 05 through the hydraulic hard pipe 0202. The main function of the oil-dividing block is to connect the hydraulic clamping element with the main oil circuit to form a complete circuit.

[0051] In the above technical solution, the outer jacket of the hydraulic hose 0201 is provided with a metal sheath to prevent damage caused by machining iron chips and use.

[0052] Hydraulic pipeline 02 and oil distribution block 03 are installed on both sides of the workbench, with 4 sets of oil distribution blocks installed on each side; the porous plate is installed above the workbench and positioned with pin holes. Each porous plate is connected to the 01 workbench with 13 M24 evenly distributed bolts.

[0053] In the above technical solution, the porous plate 04 includes two side porous plates 0401 and a middle porous plate 0402 , and the two side porous plates 0401 are installed on both sides of the middle porous plate 0402 .

[0054] In the above technical solution, the holes on the porous plate are all M24 threaded through holes, and numbers are provided on the holes.

[0055] Three perforated plates form a set and are machined together on a grinder to keep their height within the permissible tolerance.

[0056] like Figure 5 As shown, the main oil circuit 05 includes a main quick-connect connector 0502, a pressure gauge 0504, and a main oil circuit block 0505. The main oil circuit block 0505 is connected to a hydraulic station. Several main quick-connect connectors 0502 are installed on the main oil circuit block 0505. A pressure gauge 0504 is connected to the pipeline of each main quick-connect connector 0502. The lower part of the main oil circuit block 0505 is connected to the sub-oil circuit block 03.

[0057] In the above technical solution, an accumulator 0503 is connected to the pipeline of each main quick-connect connector 0502.

[0058] In the above technical solution, an oil receiving pan 0506 is provided below the main quick-connect connector 0502 , and the oil receiving pan 0506 is connected to the main oil circuit block 0505 .

[0059] The main quick-connect connectors 0502 are provided in five locations, corresponding one to one with the five hydraulic oil circuits of the fixture, and are manually connected by means of quick-connect connectors. The five hydraulic oil circuits of the flexible fixture are: end clamping oil circuit, side clamping oil circuit, main clamping auxiliary branch oil circuit, auxiliary clamping oil circuit and return oil circuit. The oil inlet of the end clamping cylinder module 0601 is connected to the end clamping oil circuit, the oil inlet of the side clamping cylinder module 0602 is connected to the side clamping oil circuit, the oil inlet of the main clamping cylinder module 0603 and the auxiliary support cylinder module 0604 is connected to the main clamping auxiliary branch oil circuit, and the oil inlet of the auxiliary clamping cylinder module 0605 is connected to the auxiliary clamping oil circuit; the return oil of all the above-mentioned cylinders is connected to the return oil circuit;

[0060] The 0503 accumulator and the 0504 pressure gauge are both provided at 5 locations, respectively connected to the 5 hydraulic oil circuits mentioned above, to supplement the hydraulic pressure therefor and display the hydraulic pressure of the oil circuit.

[0061] In the above technical solution, the main oil circuit block 0505 is connected with a protective cover 0501, and the protective cover 0501 covers the accumulator 0503 and the pressure gauge 0504. The protective cover 0501 provides safety protection for the 05 main oil circuit.

[0062] The main functions of the main oil circuit are: first, to connect with the hydraulic station to connect the oil pressure of the hydraulic station to the hydraulic clamping element; second, to maintain the pressure to maintain the hydraulic pressure required by the hydraulic clamping element.

[0063] When using this device, for the clamping and positioning of the same workpiece:

[0064] 1. All hydraulic clamping elements on the confirmation fixture of the tooling device are in a relaxed state, and the end support screw 070105 and the side support screw 070204 are adjusted to an avoidance state;

[0065] 2. Lift the workpiece 09 onto the fixture so that the workpiece 09 is in contact with one end equal height seat 070104 and two side and tail equal height seats 070207 for support;

[0066] 3. Use the 08 detection tool to detect the horizontal condition of the processing position on the upper surface of the workpiece 09, and adjust the end support screw 070105 and the side support screw 070204 to make the workpiece 09 horizontal, and then lock and fix all the screws;

[0067] 4. Connect the oil pipes of the external hydraulic station to the main quick-connect connectors 0502 of the 05 main oil circuit;

[0068] 5. Start the end clamping oil circuit, and the end clamping cylinder module 0601 clamps the workpiece 09 in the length direction;

[0069] 6. Start the side clamping oil circuit, and the two side clamping cylinder modules 0602 clamp the workpiece in position along the width direction;

[0070] 7. Start the main clamp auxiliary branch oil circuit, and the four main clamping cylinder modules 0603 clamp the workpiece in the up and down direction. Under the control of the sequence valve, the three auxiliary support cylinder modules 0604 move upward to contact and lock the workpiece;

[0071] 8. Start the auxiliary clamping oil circuit, and the three auxiliary clamping cylinder modules 0605 clamp the workpiece in the up and down directions;

[0072] 9. The action control of the above oil circuit can be manually operated or automatically controlled by PLC program; after the workpiece clamping and positioning is completed, the connection between the oil pipe of the external hydraulic station and the main oil circuit 05 is disconnected;

[0073] 10. The tooling fixtures are transported to the machine tool for processing.

[0074] When using this device for production changeover of different types of workpieces:

[0075] After replacing other types of workpieces 09, due to the differences in width, length and support clamping points, it is necessary to first adjust the positions of various mechanisms on the tooling device;

[0076] In the length direction, according to the length of the workpiece after the change of shape, the end column 0701 is moved along the length direction of the workbench 01 to a suitable installation position, and the end column 0701 is fixed on the porous plate 04 by bolts. When the end column 0701 moves a long distance so that the hydraulic hose 0202 connected to the oil distribution block 03 on the end column 0701 is not long enough, the connection between the hydraulic hose 0202 and the original oil distribution block 03 is disconnected, and the hydraulic hose 0202 on the end column 0701 is connected to the nearest oil distribution block 03;

[0077] If the length of the workpiece changes greatly after the changeover, in order to ensure that the workpiece is close to the center of the fixture during clamping, in addition to adjusting the end column 0701, the position of the tail column 0702 must also be adjusted in the same way as the end column 0701;

[0078] In the width direction, according to the width of the workpiece after the change and the clamping and positioning point, the tail column 0702, the lateral column 0703 and the auxiliary support column 0704 in the functional column 07 are moved to the appropriate installation position along the length and width direction of the workbench 01, and fixed on the porous plate 04 by bolts. When the length of the hydraulic hose 0202 connected to the oil distribution block 03 on the position-adjusted 07 functional column is not appropriate, disconnect the hydraulic hose 0202 and the original oil distribution block 03, and connect the hydraulic hose 0202 on each functional column 07 to the nearest oil distribution block 03;

[0079] Adjust the installation position of the end support screw 070105 on the end adjustment base plate 070102 of the end column 0701, and the installation position of the end support screw 070204 on the tail adjustment base plate 070206 of the tail column 0702, to ensure that the end support screw 070105 and the end support screw 070204 are at the reasonable support point position of the workpiece 09;

[0080] In the height direction, replace one end equal height seat 070104 on the end column 0701 and two side tail equal height seats 070207 on the tail column 0702, so that the workpiece is in a theoretical equal height posture under the support of the three-point equal height block after the change, and adjust the positions of the guide block 070302, the positioning screw 070303 and the side clamping cylinder module 0602 on the lateral column 0703 to meet the needs of workpiece guiding and width direction clamping;

[0081] After the change of shape, the upper surface of workpiece 09 is not a complete plane. When the hydraulic clamping element 06 cannot clamp workpiece 09, it is necessary to disassemble the side bottom column 070201, the side middle column 070202, the side top column 070203, the auxiliary support bottom column 070402, the auxiliary support middle column 070403, and the auxiliary support top column 070404 in the functional column 07 and reassemble them into a new column. The height of the column meets the clamping requirements of workpiece 09.

[0082] If the workpiece size is too small after the change, and the functional columns 07 cannot be fully installed, the number of auxiliary support columns 0704 can be appropriately reduced;

[0083] The final clamping operation of workpiece 09 is consistent with the clamping and positioning operation process of the same workpiece.

[0084] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A fixture for clamping and positioning large thin-walled structural parts, characterized by: It includes a workbench, a hydraulic pipeline, an oil distribution block, a porous plate, a main oil circuit, a hydraulic clamping unit, a functional column and a detection tool. The porous plate is arranged on the workbench, and a plurality of groups of evenly distributed holes are provided on the porous plate for connecting the functional column with the workbench. The main oil circuit is installed on the workbench, and a plurality of oil distribution blocks and hydraulic pipelines are arranged on the side of the workbench. The hydraulic pipeline includes a hydraulic hose and a hydraulic hard pipe. The main oil circuit is connected to the oil distribution block through the hydraulic hard pipe, and the oil distribution block is connected to the hydraulic clamping unit through the aforementioned hydraulic hose. The hydraulic clamping unit is connected to the corresponding functional column. The functional column includes an end column, a tail column, a lateral column, and an auxiliary support column. The hydraulic clamping element includes an end clamping cylinder module, a side clamping cylinder module, a main clamping cylinder module, an auxiliary support cylinder module and an auxiliary clamping cylinder module, and the return oil of all the above cylinders is connected to the oil return circuit; The end column comprises an end bottom column, an end adjustment bottom plate, an end top column, an end contour seat and an end support screw, the end adjustment bottom plate is mounted on the end bottom column, the end top column, the end contour seat and the end support screw are all mounted on the end adjustment bottom plate, the end adjustment bottom plate is provided with a plurality of through holes for adjusting the positions of the end top column, the end contour seat and the end support screw, the end contour seat is mounted on the center line of the end adjustment bottom plate, and end support screws are provided on both sides of the end contour seat, three end top columns are provided on the same side of the end support screw and the end contour seat, the middle end top column is connected to an end clamping cylinder module, and the end top columns on both sides thereof are connected to main clamping cylinder modules; The tail column includes two side tail columns and an intermediate tail column, the side tail columns include side bottom columns, side intermediate columns, side top columns, side support screws and a main clamping cylinder module, the side bottom columns are connected to the side intermediate columns, the side intermediate columns are connected to the side top columns, one side of the side top columns is provided with a side support screw, and the top of the side top columns is provided with a main clamping cylinder module, the side tail columns include side tail bottom columns, side tail adjustment bottom plates, side tail equal height seats and side tail end positioning mechanisms, the side tail adjustment bottom plates are installed on the side tail bottom columns, the side tail equal height seats and the side tail end positioning mechanisms are installed on the side tail adjustment bottom plates, and the side tail adjustment bottom plates are provided with a plurality of through holes for adjusting the positions of the side tail equal height seats and the side tail end positioning mechanisms; The lateral column comprises a column body, a guide block and a positioning screw, wherein the positioning screw is horizontally installed on one side of the column body, a groove for the positioning screw to slide up and down is provided on the column body, and a vertical guide block is installed on the column body on the side opposite to the positioning screw; The auxiliary support column comprises two side auxiliary support columns and one end auxiliary support column, the side auxiliary support column comprises a side auxiliary support column body, the end auxiliary support column comprises an auxiliary support bottom column, an auxiliary support middle column, and an auxiliary support top column, the auxiliary support bottom column is connected to the auxiliary support middle column, the auxiliary support middle column is connected to the auxiliary support top column, auxiliary clamping cylinders are arranged on the tops of the side auxiliary support columns and the auxiliary support top columns, and auxiliary support cylinders corresponding to their auxiliary clamping cylinders are arranged on the sides of the side auxiliary support columns and the auxiliary support top columns; The detection tool is used to detect whether the processing position meets the processing requirements after the workpiece is clamped.

2. The fixture device for clamping and positioning large thin-walled structural parts according to claim 1 is characterized in that: The oil path block includes an oil path block body, a split quick-connect joint, and a common joint. One end of the hydraulic hose is connected to the oil path block through the split quick-connect joint, and the common joint is connected to the main oil path through a hydraulic hard pipe.

3. The fixture device for clamping and positioning large thin-walled structural parts according to claim 1 or 2 is characterized in that: The outer shell of the hydraulic hose is provided with a metal sheath.

4. The fixture device for clamping and positioning large thin-walled structural parts according to claim 1 is characterized in that: The porous plate comprises two side porous plates and a middle porous plate, and the two side porous plates are installed on both sides of the middle porous plate.

5. The fixture device for clamping and positioning large thin-walled structural parts according to claim 1 is characterized in that: The holes on the perforated plate are all M24 threaded through holes, and numbers are set on the holes.

6. The fixture device for clamping and positioning large thin-walled structural parts according to claim 1 is characterized in that: The main oil circuit includes a main quick-connect connector, a pressure gauge, and a main oil circuit block. The main oil circuit block is connected to a hydraulic station. Several main quick-connect connectors are installed on the main oil circuit block. A pressure gauge is connected to the pipeline of each main quick-connect connector. The lower part of the main oil circuit block is connected to the sub-oil circuit block.

7. The fixture device for clamping and positioning large thin-walled structural parts according to claim 6 is characterized in that: An accumulator is connected to the pipeline of each main quick-connect connector.

8. The fixture device for clamping and positioning large thin-walled structural parts according to claim 6 is characterized in that: An oil receiving pan is provided below the main quick-connect connector, and the oil receiving pan is connected to the main oil circuit block.

9. The fixture device for clamping and positioning large thin-walled structural parts according to claim 6 is characterized in that: The main oil circuit block is connected with a protective cover, which covers the accumulator and the pressure gauge.

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