CN113290158B

CN113290158B - Machining method for oil tank plate of engineering truck

Info

Publication number: CN113290158B
Application number: CN202110546180.3A
Authority: CN
Inventors: 王成相; 傅海龙; 王桂云; 翁巍强; 何炼杰
Original assignee: Hangzhou Hengli Manufacturing Technology Co ltd
Current assignee: Hangzhou Hengli Manufacturing Technology Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2022-10-04
Anticipated expiration: 2041-05-19
Also published as: CN113290158A

Abstract

The application relates to a processing method of an oil tank plate of an engineering truck, which comprises the following steps: s1: cutting, leveling and drilling a raw material steel plate to obtain a sample plate; s2: conveying the sample plate to a positioning table for positioning; s3: conveying the positioned sample plate to a bending machine by using a robot to bend; the robot is arranged on one side of the support platform, and the support platform is obliquely and downwards arranged from one side, far away from the robot, of the support platform to one side, close to the robot, of the support platform in the width direction; the supporting platform is arranged in the length direction from one end of the supporting platform to the other end of the supporting platform in an inclined and downward mode; and positioning plates are connected to two adjacent edges closest to the ground among the four edges of the supporting table along the length direction of the edges. This application has the effect that improves oil tank board machining efficiency.

Description

Machining method for oil tank plate of engineering truck

Technical Field

The application relates to the field of oil tank plate machining, in particular to a machining method of an oil tank plate of an engineering truck.

Background

The working vehicle refers to a vehicle for engineering construction, and comprises a lifting truck, a soil pushing truck and the like. The oil tank of the engineering truck is generally formed by assembling and welding oil tank plates which are prepared in advance.

The raw material of the oil tank plate of the engineering truck is generally a stainless steel plate, and the process of manufacturing the stainless steel plate into the oil tank plate comprises the following steps: firstly, cutting a raw material steel plate into required sizes; secondly, leveling the cut steel plate; thirdly, drilling and chamfering the leveled steel plate; fourthly, grabbing the leveled steel plate by a robot to bend; and fifthly, the qualified oil tank can be used for assembling the engineering truck.

In view of the above related technologies, the inventor believes that when the robot picks up the steel plates in the third step, the steel plates are generally stacked together, the positions of the steel plates are different from each other, and the robot needs to move the positions of the steel plates many times to find out an accurate picking position when picking up the steel plates, so that the time for the robot to pick up the steel plates for processing is obviously prolonged, and the efficiency is obviously reduced.

Disclosure of Invention

In order to improve the efficiency of grabbing a steel plate by a robot, the application provides a machining method of an oil tank plate of a engineering truck.

The application provides a processing method of an engineering truck oil tank plate, which adopts the following technical scheme:

a processing method of an engineering vehicle oil tank plate is characterized by comprising the following steps: the processing method comprises the following steps:

s1: cutting, leveling and drilling a raw material steel plate to obtain a sample plate;

s2: conveying the sample plate to a positioning table for positioning;

s3: conveying the positioned sample plate to a bending machine by using a robot for bending;

the robot is arranged on one side of the support table, and the support table is obliquely and downwards arranged from one side, far away from the robot, of the support table to one side, close to the robot, of the support table in the width direction; the supporting platform is arranged in the length direction from one end of the supporting platform to the other end of the supporting platform in an inclined downward mode; and positioning plates are connected with the edge of one side of the supporting platform, which is close to the robot, and the width direction of the table top of the supporting platform.

Through adopting above-mentioned technical scheme, the raw materials steel sheet is cutting, the levelling, obtain the sample board after the drilling, the sample board directly carries the location bench, because the tilt state of location bench, make the sample board that falls to the location bench can slide on the location bench surface through the action of gravity of self, when the sample board slides to two locating plates butt on the both sides lateral wall location bench, the sample board is fixed a position, then the robot just can accurately snatch the steel sheet of location bench and go to buckle, the time of robot adjustment steel sheet has greatly been saved. After one steel plate is grabbed away by the robot, another steel plate is placed, and the whole process is more convenient and faster.

Optionally, in step S2, the sample plate is conveyed to the positioning table by a conveying device;

the conveying device comprises a transitional conveying platform connected with the positioning platform, a horizontal conveying platform connected with the transitional conveying platform, a lifting frame connected with the horizontal conveying platform and a transport vehicle matched with the lifting frame and used for storing the sample plate, wherein a lifting assembly used for lifting the sample plate is arranged on the lifting frame; the height of the horizontal conveying platform is higher than that of the positioning platform;

the transport vehicle comprises 4 vertical vehicle frames, a fixing plate is fixedly connected between the tops of the adjacent vehicle frames, and an abutting plate is fixedly connected between the bottoms of the 2 adjacent vehicle frames in the width direction of the transport vehicle; a limiting plate for limiting the sample plate is fixedly connected to the side wall of the frame along the height direction of the frame, the sample plate is arranged on the abutting plate, and the side wall of the sample plate is abutted to the side wall of the limiting plate; wheels are mounted on the bottom wall of the abutting plate;

the lifting frame comprises 4 vertical supporting frames, a cross beam is fixedly connected between the top ends of the adjacent supporting frames, and a bearing plate is fixedly connected between the bottom ends of the 2 adjacent supporting frames along the length direction of the lifting frame; be close to 2 of one side of horizontal transport platform the direction of height fixedly connected with baffle along the support frame on the support frame lateral wall is close to one side of horizontal transport platform limiting plate and baffle looks butt, butt joint board with accept board looks butt, still be equipped with the locking piece that is used for locking transport vechicle and crane on the frame.

The lifting assembly comprises motor supports arranged on two sides of the lifting frame in the width direction, a lifting motor is arranged on the bottom wall of each motor support, an output shaft of the lifting motor is in key connection with a first bevel gear, a vertical threaded rod is rotatably connected between the cross beam and the motor supports, a transmission rod is rotatably connected to the bottom wall of each motor support, one end, close to the lifting motor, of each threaded rod is fixedly connected with the transmission rod, a second bevel gear is in key connection with the transmission rod, and the first bevel gear is meshed with the second bevel gear;

the threaded rod is in threaded connection with a lifting plate, and the bearing plate is provided with a preformed groove matched with the lifting plate; the top wall of the lifting plate is abutted with the bottom wall of the sample plate; a guide rod is fixedly connected between the cross beam and the bearing plate, a guide hole is formed in the lifting plate, and the guide rod is connected with the guide hole in a sliding manner;

the horizontal conveying platform comprises a horizontal conveying platform, a beam and a pushing assembly, wherein the beam is close to one side of the horizontal conveying platform and is provided with a feeding port, the beam far away from one side of the horizontal conveying platform is provided with the pushing assembly used for sending a sample plate out from the feeding port, the pushing assembly comprises a pushing cylinder and a pushing plate, the pushing cylinder is arranged on the beam, and one end, penetrating through the beam, of a piston rod of the pushing cylinder is connected with the pushing plate.

Through adopting above-mentioned technical scheme, conveyor can be with the steel sheet of storing in the transport vechicle automatically in the front a steel sheet is snatched away the back by the robot and transports a steel sheet to the location bench to continuity of operation reduces the manpower, raises the efficiency. At first, promote the transport vechicle and follow in the transportation channel gets into the crane for frame and support frame looks butt, limiting plate and baffle butt, then through the locking piece with the transport vechicle locking in the crane. And then, starting a lifting motor, wherein an output shaft of the lifting motor rotates to drive a first bevel gear to rotate, the first bevel gear rotates to drive a second bevel gear to rotate, the second bevel gear rotates to drive a threaded rod to rotate, the threaded rod rotates to drive a lifting plate to lift, the lifting plate drives a steel plate to ascend, after the steel plate at the top of the lift truck corresponds to the feeding port, a pushing cylinder is started, the pushing cylinder drives the pushing plate to push the steel plate to enter a horizontal conveying table, and the steel plate falls onto a positioning table after passing through the horizontal conveying table and a transitional conveying table.

Optionally, a first groove is formed in the cross beam arranged in the length direction of the lifting frame, a first spring is arranged in the first groove, one end of the first spring is fixedly connected with the bottom of the first groove, the other end of the first spring is fixedly connected with a first protruding block, the first protruding block is in sliding fit with the first groove, and the side wall of one side, facing the bottom of the lifting frame, of the first protruding block is provided with a cambered surface; the thickness of the first bump is equal to that of the sample plate;

an induction assembly is arranged above the first bump, the induction assembly comprises an induction ball, a second spring and an inductor, a second groove used for being matched with the induction ball to slide is formed in the side wall of the cross beam, an inductor used for inducing the pressure of the spring is arranged at the bottom of the second groove, one end of the second spring is fixedly connected with the inductor, the other end of the second spring is fixedly connected with the induction ball, and the inductor is electrically connected with a lifting motor; the distance between the lowest point of the sensing ball and the top wall of the first bump is greater than the thickness of 1 sample plate and less than the thickness of 2 sample plates.

Through adopting above-mentioned technical scheme, when the steel sheet on the way that rises, the cambered surface of first lug is extruded earlier to the steel sheet of topmost to in impressing first recess with first lug. Then the in-process that the steel sheet continues to rise again, the steel sheet separates with first lug gradually and begins to extrude the response ball, after steel sheet and first lug separation, the steel sheet is impressed the response ball in the second recess completely, the pressure of response ball is experienced to the inductor of second spring department this moment, inductor signal of telecommunication control elevator motor reversal, elevator motor reversal drives the lifter plate and descends, and the lifter plate descends and makes all begin to descend with the steel sheet below the top steel sheet, when the adjacent steel sheet of top steel sheet separates gradually with first lug, first lug receives the resilience force of first spring and shifts out first recess, the plane that first lug deviates from the cambered surface is with the steel sheet butt at top, make the steel sheet at top can not descend along with the lifter plate, thereby separate the top steel sheet. Then the pushing assembly pushes the top steel plate to enter the horizontal conveying table, the pressure on the induction ball disappears, and the lifting motor begins to forward transfer again, so that the next steel plate is lifted and separated. Avoid contacting between the steel sheet that is promoted and the steel sheet below to reduce the steel sheet and promote the friction damage of the in-process that gets into the horizontal transport platform, and make the promotion of steel sheet more smooth and easy.

Optionally, first bosses are fixedly connected to two sides of the horizontal conveying table along a length direction of the horizontal conveying table, a first mounting groove is formed in a side wall of one side, close to each other, of each of the two first bosses along the length direction of the first boss, a first roller is rotatably mounted at one end of the first mounting groove, a second roller is rotatably mounted at the other end of the first mounting groove, at least one intermediate roller is further mounted between the first roller and the second roller, a transmission belt is mounted on the first roller and the second roller, the transmission belt is abutted against the sample plate, a first driving motor is mounted on the horizontal conveying table, an output shaft of the first driving motor is in key connection with the first roller, and a transmission direction of one side, abutted against the sample plate, of the transmission belt is consistent with an advancing direction of the sample plate; and the two sides of the transition conveying table are fixedly connected with second bosses along the length direction of the transition conveying table, and the distance between the side walls of the two second bosses close to each other on one side is the same as the width of the sample plate.

Through adopting above-mentioned technical scheme, the first gyro wheel on the first driving motor drive horizontal transport platform rotates, and first gyro wheel rotates and drives the transmission of drive belt, and the sample board that drives the entering horizontal transport platform during the transmission of drive belt advances on the horizontal transport platform, avoids the sample board to cross low and be detained on the horizontal transport platform at the speed of when being promoted the subassembly and release for the sample board can enter into the location bench smoothly.

Optionally, the both sides fixedly connected with third boss, two of the one end that the location platform is close to the transition transport platform the second mounting groove has been seted up along the length direction of third boss on the lateral wall of one side that the third boss is close to each other, the one end of second mounting groove is rotated and is installed first speed reduction gyro wheel, the other end of second mounting groove is rotated and is installed second speed reduction gyro wheel, still install at least one middle speed reduction gyro wheel between first speed reduction gyro wheel and the second speed reduction gyro wheel, install the speed reduction drive belt on first speed reduction gyro wheel and the second speed reduction gyro wheel, the speed reduction drive belt is mutually supported mutually with the sample board, install second driving motor on the location platform, the output shaft and the first speed reduction gyro wheel key-type connection of second driving motor, the direction of transmission of one side that the speed reduction drive belt was mutually supported mutually with the sample board is opposite with the direction of advancing of sample board.

Through adopting above-mentioned technical scheme, the first speed reduction gyro wheel of second driving motor drive rotates, and first speed reduction gyro wheel rotates and drives speed reduction transmission belt transmission, and speed reduction transmission belt transmission's direction is opposite with the traffic direction of sample board to make the sample board can be slowed down after reacing the location platform, make the speed of sample board at a reasonable scope, avoid the sample board acutely to strike the locating plate on the location platform, reduce the damage of sample board.

Optionally, the locating plate includes the first locating plate that sets up along brace table length direction and the second locating plate that sets up along brace table width direction, the one end that the second locating plate is close to first locating plate is articulated mutually with the brace table, be equipped with on the brace table and be used for the pulling second locating plate to keeping away from first locating plate pivoted elastic component, be connected with the sliding block on the diapire of the one end that first locating plate was kept away from to the second locating plate, set up one section circular-arc sliding tray with the articulated position centre of a circle of second locating plate on the brace table, the sliding block slides with the sliding tray and links to each other, still be equipped with the locating component who is used for fixing a position the sliding block position on the brace table.

Through adopting above-mentioned technical scheme, the second locating plate can rotate around the pin joint for contained angle between first locating plate and the second locating plate can be adjusted according to the sample board shape of reality, and is more accurate in order to ensure the location of sample board. After the angle modulation of second locating plate was accomplished, lock the location through locating component to the sliding block to stabilize the second locating plate in the position after adjusting.

Optionally, the positioning assembly includes a positioning block, a plurality of positioning grooves are equidistantly formed in the side wall of the sliding groove along the length direction of the sliding groove, the positioning block is hinged to the side wall of the opening of the positioning groove, a notch of the positioning groove extends from one end of the positioning block, the other end of the positioning block is located in the positioning groove, the distance between the end point, farthest from the hinge shaft of the positioning block, of the end of the positioning block extending out of the positioning groove and the hinge shaft of the positioning block is smaller than the distance between the side wall of one side, close to the transitional conveying table, of the positioning groove and the hinge shaft of the positioning block, an accommodating gap is formed in the side wall of one side, far from the transitional conveying table, of the positioning block, and the accommodating gap is used for accommodating the positioning block to accommodate when the positioning block located in the positioning groove rotates, the distance between the end point, farthest from the hinge shaft of the end of the positioning block extending out of the positioning groove, of the positioning block and the hinge shaft of the positioning block is larger than the distance between the side wall of one side, far from the transitional conveying table, and the hinge shaft of the positioning block, a positioning spring is arranged in the positioning groove, one end of the positioning spring is fixedly connected with the bottom of the control element, the positioning spring is fixedly connected with the positioning block, the other end of the positioning spring is fixedly connected with the positioning block, and the supporting table is further arranged for controlling block to control block to rotate.

Through adopting above-mentioned technical scheme, the second locating plate is at the pivoted in-process of first locating plate of court, and at first the sliding block can promote the locating piece and rotate and get into in the constant head tank, and the sliding block separates with the locating piece afterwards, and the locating piece receives positioning spring's resilience force and rotates reset this moment. If the second positioning plate is rotated to a required position at the moment, the second positioning plate is released, the second positioning plate is abutted against the side wall of the positioning block under the action of the elastic piece, and the positioning block cannot be pushed by the second positioning plate because the positioning block is pulled by the spring and limited by the side wall of the accommodating gap, and is positioned under the action of the elastic force of the elastic piece and the abutting of the positioning block, so that the positioning operation mode is simple, fast and efficient. When the second positioning plate needs to be restored to the original position, the control piece controls the positioning block to enter the positioning groove, and then the second positioning plate is rotated to be restored.

Optionally, the control element includes a plurality of transmission gears and a transmission rack, an arc-shaped groove is formed in the bottom wall of the support platform, the plurality of transmission gears are arranged at intervals along the circumferential direction of the arc-shaped groove, each transmission gear corresponds to 1 positioning block, the transmission gear is rotatably connected with the bottom of the arc-shaped groove through a transmission shaft, the transmission shaft penetrates through the support platform and is fixedly connected with the hinge shaft, a rack installation groove is formed in the side wall of the arc-shaped groove along the circumferential direction of the arc-shaped groove, the transmission rack is slidably installed in the rack installation groove, and the transmission rack is meshed with the transmission gears; the drive gear deviates from the articulated shaft and is connected with a drive rod, and the drive rod is far away from one end fixedly connected with a drive handle connected with the drive gear.

By adopting the technical scheme, when the second positioning plate needs to be reset, the driving handle is rotated, the driving handle drives the transmission gear to rotate through the driving rod, the transmission gear rotates to drive the rack to slide, the rack drives all the transmission gears to rotate, the transmission gear drives the articulated shafts of the positioning blocks to rotate through the transmission shaft, so that all the positioning blocks are driven to enter the positioning grooves together, the second positioning plate is conveniently and subsequently rotated to reset, the operation mode is simple and fast, and the adjusting efficiency is high.

Optionally, the locking piece includes first bolt ring, the second bolt ring of fixed connection on the frame and bolt carriage and bolt of fixed connection on the support frame, the axis of first bolt ring, the axis of second bolt ring and the axis coincidence of bolt carriage, slidable mounting has the bolt in the bolt carriage, bolt and first bolt ring and second bolt ring sliding fit.

By adopting the technical scheme, when one end of the bolt sequentially passes through the second bolt ring and the first bolt ring, and the other end of the bolt is arranged at one end, close to the second bolt ring, of the bolt sliding frame, the transport vehicle is locked in the lifting frame by the locking piece; when the bolt slides and is separated from the first bolt ring, the transport vehicle and the lifting frame are unlocked at the moment. The locking mode of the transport vehicle and the lifting frame is simple and quick.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sample plate is positioned by arranging the positioning table with a certain inclination degree, so that the sample plate can be conveniently positioned and grabbed by the robot, the efficiency of grabbing the sample plate by the robot is improved, and the production efficiency of the oil tank plate is improved;

2. by arranging the conveying device capable of automatically conveying a single sample plate to the positioning table, the labor cost is reduced, and the working efficiency of conveying the sample plate to the positioning plate is improved;

3. through setting up the locating plate that can angle regulation for the location platform can adapt to the oil tank board of different shapes size and process, enlarges the range of application of location platform.

Drawings

Fig. 1 is a perspective view of a positioning table and a conveying device in an embodiment of the present application.

Fig. 2 is a perspective view of the transport vehicle in the embodiment of the present application.

Figure 3 is a perspective view of the crane and the lifting assembly in an embodiment of the present application.

Fig. 4 is a perspective view of the combination of the transporter, the crane and the lifting assembly in the embodiment of the present application.

Fig. 5 is a partially enlarged view of a in fig. 4.

Fig. 6 is a cross-sectional view of the beam, the first bump, and the sensing assembly.

Fig. 7 is a perspective view of the positioning table, the transition conveying table and the horizontal conveying table in the embodiment of the present application.

Fig. 8 is a perspective view of a positioning table in an embodiment of the present application.

Fig. 9 is a perspective view of the second positioning plate in the embodiment of the present application.

FIG. 10 is a perspective view of a positioning assembly and control member according to an embodiment of the present application.

Description of reference numerals: 1. a positioning table; 11. a support; 12. a support table; 13. positioning a plate; 131. a first positioning plate; 132. a second positioning plate; 133. an elastic member; 1331. a torsion spring mounting shaft; 1332. a torsion spring; 134. a slider; 135. a sliding groove; 14. a positioning assembly; 141. positioning a block; 142. positioning a groove; 143. a positioning spring; 15. a control member; 151. a transmission gear; 152. a drive rack; 155. a drive rod; 156. a drive handle; 2. a transport vehicle; 21. a frame; 22. a limiting plate; 23. a fixing plate; 24. a butt joint plate; 25. a wheel; 251. a wheel carrier; 252. a roller; 26. a locking member; 261. a first latch ring; 262. a second latch ring; 263. a bolt; 2631. a slide bar; 2632. a sliding handle; 2633. a sliding rack of the bolt; 2634. a through groove; 3. a lifting frame; 31. a support frame; 32. a cross beam; 33. a bearing plate; 34. a baffle plate; 4. a lifting assembly; 41. a motor bracket; 42. a lifting motor; 43. a first bevel gear; 44. a second bevel gear; 45. a transmission rod; 46. a threaded rod; 47. a lifting plate; 48. reserving a groove; 49. a guide bar; 491. a guide hole; 492. a feed port; 5. a pushing assembly; 51. a push cylinder; 52. a push plate; 53. a first groove; 54. a first spring; 55. a first bump; 61. an induction ball; 62. a second spring; 63. an inductor; 64. a second groove; 7. a horizontal conveying table; 71. a first boss; 72. a first mounting groove; 73. a first roller; 74. a middle roller; 75. a second roller; 76. a transmission belt; 77. a first drive motor; 8. a transition conveying table; 81. a second boss; 9. a third boss; 91. a second mounting groove; 92. a first reduction roller; 93. a second reduction roller; 94. a middle deceleration roller; 95. a speed reduction transmission belt; 96. a second drive motor; 100. and (4) a sample plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses a method for processing an oil tank plate of an engineering truck, which comprises the following steps:

step S1: cutting a raw steel plate by laser according to a drawing, leveling the cut steel plate by a leveling machine, and drilling the leveled steel plate according to the drawing to obtain a sample plate.

Step S2: and conveying the sample plate to the positioning table 1 by adopting a conveying device for positioning.

And step S3: and (3) grabbing the sample plate from the positioning table 1 by adopting a six-axis mechanical arm type robot, bending the sample plate according to a drawing, and placing the sample plate in a product storage area after bending.

The oil tank plate can be processed and obtained through the 3 steps.

Referring to fig. 1, the conveying device includes a transport vehicle 2 for storing sample plates 100, a crane 3 used in cooperation with the transport vehicle 2, a lifting assembly 4 installed on the crane 3, a horizontal conveying table 7 connected to the crane 3, and a transitional conveying table 8 having one end connected to the horizontal conveying table 7 and the other end connected to the positioning table 1.

Referring to fig. 1 and 2, the transportation vehicle 2 includes vertical frames 21, a horizontal fixing plate 23 is fixedly connected between the top ends of the adjacent frames 21, and a butt plate 24 is fixedly connected between the bottom ends of the two frames 21 arranged along the width direction of the transportation vehicle 2. A limiting plate 22 is fixedly connected to the side wall of one side of each frame 21 close to the adjacent frame 21, and the limiting plate 22 is arranged along the height direction of the frame 21. Wheels 25 are arranged on the bottom wall of the abutting plate 24 at equal intervals, and each wheel 25 comprises a wheel bracket 251 fixedly connected with the abutting plate 24 and a roller 252 rotatably connected to the wheel bracket 251. The sample plate 100 is stacked on the abutting plate 24 of the vehicle frame 21, and the side wall of the sample plate 100 is attached to the inner side wall of the limiting plate 22, so that the sample plate 100 is limited in the vehicle frame 21 by the limiting plate 22.

Referring to fig. 3 and 4, the crane 3 comprises four vertical support frames 31, a horizontal beam 32 is fixedly connected between the top ends of the adjacent support frames 31, and a horizontal bearing plate 33 is fixedly connected between the bottom ends of the adjacent support frames 31 along the length direction of the crane 3. The side walls of the frame 21 are in contact with the side walls of the support frame 31, and the bottom wall of the contact plate 24 is in contact with the top wall of the receiving plate 33.

Referring to fig. 3 and 4, a baffle 34 is fixedly connected to the two support frames 31 near one side of the horizontal conveying table 7 along the height direction of the support frames 31. The side wall of the stopper plate 22 abuts against the side wall of the shutter 34.

Referring to fig. 4 and 5, two frames 21 on the side away from the horizontal conveying table 7 (see the figure) are provided with a locking member 26, and the locking member 26 comprises a first latch ring 261, a second latch ring 262, a latch sliding rack 2633 and a latch 263. The first pin ring 261 is fixedly connected to the supporting frame 31, the second pin ring 262 and the pin sliding rack 2633 are fixedly connected to the frame 21, and a clamping gap exists between the second pin ring 262 and the pin sliding rack 2633. The latch 263 includes a sliding rod 2631 slidably mounted in the latch sliding rack 2633 and a sliding handle 2632 fixedly connected to a sidewall of the sliding rod 2631, a through slot 2634 for the sliding handle 2632 to slide is formed in the latch sliding rack 2633 along a length direction of the latch sliding rack 2633, and the first latch ring 261, the second latch ring 262 and the latch sliding rack 2633 are coaxially disposed. When the sliding handle 2632 is vertically clamped downwards in the clamping gap, one end of the sliding rod 2631 sequentially passes through the second latch ring 262 and the first latch ring 261, and the other end of the sliding rod 2631 is positioned at one end of the latch sliding frame 2633 close to the second latch ring 262, so that the transport vehicle 2 is locked in the crane 3 by the locking piece 26; when the sliding handle 2632 is rotated to be engaged with the through slot 2634, the sliding handle 2632 moves along the through slot 2634, so that the sliding rod 2631 is separated from the first latch ring 261, and the transporter 2 is unlocked from the crane 3.

Referring to fig. 3, the lifting assembly 4 includes motor brackets 41 installed at both sides of the lifting frame 3, and the motor brackets 41 are fixedly connected to the receiving plate 33 and the supporting frame 31. A lifting motor 42 is fixedly mounted on the bottom wall of the motor bracket 41, and a first bevel gear 43 is connected to an output shaft of the lifting motor 42 through a key. A threaded rod 46 is rotatably connected between the cross beam 32 and the motor bracket 41, and the threaded rod 46 is rotatably connected with the cross beam 32 and the motor bracket 41 through bearings respectively. The bottom wall of the motor support 41 is rotatably connected with a transmission rod 45 through a bearing, and the transmission rod 45 penetrates through the motor support 41 and is fixedly connected with a threaded rod 46. The transmission rod 45 is keyed with a second bevel gear 44 at the end remote from the threaded rod 46, the first bevel gear 43 meshing with the second bevel gear 44.

Referring to fig. 3, two vertical transmission rods 45 are fixedly connected between the cross beam 32 and the motor bracket 41, and the two transmission rods 45 are respectively arranged at two sides of the threaded rod 46. A lifting plate 47 is arranged between the cross beam 32 and the motor support 41, a threaded hole and a guide hole 491 are formed in the lifting plate 47, a threaded rod 46 is in threaded connection with the threaded hole, and a guide rod 49 is in sliding connection with the guide hole 491.

Referring to fig. 3, the distance between the side walls of the sides of the two elevating plates 47 adjacent to each other is smaller than the width of the sample plate 100. The bearing plate 33 is provided with a preformed groove 48 matched with the lifting plate 47, and the bottom of the preformed groove 48 is level with the top wall of the motor bracket 41.

After the lifting motor 42 is started, the lifting motor 42 rotates forward to drive the first bevel gear 43 to rotate, the first bevel gear 43 rotates to drive the second bevel gear 44 to rotate, the second bevel gear 44 rotates to drive the threaded rod 46 to rotate through the transmission rod 45, and the threaded rod 46 rotates to drive the lifting plate 47 to ascend, so that the sample plate 100 is driven to ascend.

Referring to fig. 4, a pushing assembly 5 is mounted on the cross beam 32 on a side far away from the horizontal conveying table 7, the pushing assembly 5 includes a pushing cylinder 51 fixedly connected to the cross beam 32, and a pushing plate 52 is fixedly connected to one end of the piston rod of the pushing cylinder 51 penetrating through the cross beam 32. A feed port 492 through which the sample plate 100 slides is opened in the cross member 32 on the side close to the horizontal transfer table 7. When the lifting assembly 4 brings the sample plate 100 in front of the pushing plate 52, the pushing cylinder 51 drives the pushing plate 52 to push the sample plate 100 to enter the horizontal conveying table 7 through the feeding port 492.

Referring to fig. 4 and 6, a first groove 53 is formed in the inner side wall of the cross beam 32 arranged in the length direction of the crane 3 along the length direction of the cross beam 32, a plurality of first springs 54 are arranged in the first groove 53 at equal intervals along the length direction of the first groove 53, one ends of the first springs 54 are fixedly connected to the bottom of the first groove 53, the other ends of the first springs 54 are fixedly connected with a first bump 55, and the first bump 55 is in sliding fit with the first groove 53. The bottom wall of the first projection 55 is set to be an arc-shaped surface protruding towards the bottom of the lifting frame 3.

Referring to fig. 6, a sensing assembly is disposed above the first bump 55, and the sensing assembly includes a sensing ball 61, a second spring 62 and a sensor 63. A second groove 64 is formed in the side wall of the cross beam 32 above the first bump 55, the sensor 63 is a pressure sensor, the pressure sensor is arranged at the bottom of the second groove 64, and the pressure sensor is electrically connected with the lifting motor 42. The second spring 62 is arranged in the second groove 64, one end of the second spring 62 is fixedly connected with the pressure sensor, the other end of the second spring 62 is fixedly connected with the sensing ball 61, and the sensing ball 61 is matched with the second groove 64 in a sliding mode. The pressure sensor is used for sensing the pressure of the second spring 62, when the sensing ball 61 completely enters the second groove 64, the second spring 62 is pressed, the pressure sensor senses the pressure and transmits a signal to the lifting motor 42 to control the lifting motor 42 to rotate reversely, so that the lifting plate 47 drives the sample plate 100 to descend.

Referring to fig. 6, the thickness of the first bump 55 is the same as that of the block sample plate 100, and a distance between the lowest point of the sensing ball 61 and the top wall of the first bump 55 is greater than the thickness of the block sample plate 100 and less than the thickness of the block sample plate 100.

When the lifting plate 47 descends, the sample plate 100 also descends along with the lifting plate 47, and because a gap exists between the sample plate 100 and the sample plate 100, during the descending process, the uppermost sample plate 100 is blocked above the first bump 55 by the first bump 55, and the other sample plates 100 descend all the time, so that the uppermost sample plate 100 is separated from the other sample plates 100. Then, after the pushing assembly 5 sends the uppermost sample plate 100 to the horizontal conveying table 7, the pressure on the sensing ball 61 disappears, and the elevating motor 42 resumes the normal rotation, thereby driving the sample plate 100 to continue to ascend.

Referring to fig. 7, first bosses 71 are fixedly connected to two sides of the horizontal transfer table 7 along a length direction of the horizontal transfer table 7, first mounting grooves 72 are formed in side walls of one side, close to each other, of the two first bosses 71 along the length direction of the first bosses 71, first rollers 73, intermediate rollers 74 and second rollers 75 are sequentially mounted in the first mounting grooves 72 along a transfer direction of the sample plate 100, and the first rollers 73, the intermediate rollers 74 and the second rollers 75 are all connected with side walls of the first mounting grooves 72 in a rotating manner. The first roller 73, the intermediate roller 74 and the second roller 75 are provided with belts 76 which abut against the side walls of the sample plate 100. A first driving motor 77 is fixedly installed on the bottom wall of the horizontal conveying platform 7, and an output shaft of the first driving motor 77 penetrates through the horizontal conveying platform 7 to be connected with the first roller 73 in a key mode. The first driving motor 77 drives the first roller 73 to rotate, the first roller 73 is driven by a driving belt 76 in cooperation with the intermediate roller 74 and the second roller 75, and the driving direction of the side of the driving belt 76 abutting against the sample plate 100 is consistent with the driving direction of the sample plate 100.

Referring to fig. 7, second bosses 81 are fixedly connected to both sides of the intermediate transfer stage 8 along a length direction of the intermediate transfer stage 8, and a distance between side walls of the two second bosses 81 adjacent to each other is the same as a width of the sample plate 100.

Referring to fig. 7, the positioning table 1 includes a bracket 11 for fixing the positioning table 1 on the floor and a support base 12 attached to the bracket 11. One side of the support table 12 close to the transition conveying table 8 is fixedly connected with the transition conveying table 8.

Referring to fig. 7, the robot for grasping the sample plate 100 is located on one side in the width direction of the support base 12, and the support base 12 is disposed obliquely downward in the width direction from the side of the support base 12 away from the robot to the side of the support base 12 close to the robot. The one end that links to each other with transition conveying platform 8 is kept away from to support bench 12 by support bench 12 in the length direction and is set up downwards with the slope of the one end that links to each other with transition conveying platform 8.

Referring to fig. 7, the highest point of the table top of the supporting table 12 is lower than the table top of the horizontal conveying table 7, and the table top of the transitional conveying table 8 connects the table top of the horizontal conveying table 7 with one end of the supporting table 12 close to the horizontal conveying table 7 through the combined arrangement of inclination and spiral.

Referring to fig. 7, third bosses 9 are fixedly connected to two sides of one end of the support table 12 close to the transitional conveying table 8, a second mounting groove 91 is formed in the side wall of one side where the two third bosses 9 are close to each other along the length direction of the third bosses 9, and a first speed-reducing roller 92, a middle speed-reducing roller 94 and a second speed-reducing roller 93 are sequentially mounted in the second mounting groove 91 along the conveying direction of the sample plate 100. The first deceleration roller 92, the intermediate deceleration roller 94 and the second deceleration roller 93 are provided with a deceleration belt 95 which can abut against the sample plate 100. A second driving motor 96 is mounted on the bottom wall of the support table 12, and an output shaft of the second driving motor 96 passes through the support table 12 and is connected with the first reduction roller 92 in a key manner. The driving direction of the side of the deceleration transmission belt 95 abutting the sample plate 100 is opposite to the advancing direction of the sample plate 100.

Referring to fig. 7, a positioning plate 13 is disposed at an end of the support table 12 far away from the transitional conveying table 8, the positioning plate 13 includes a first positioning plate 131 connected to an edge of the support table 12 near one side of the robot and a second positioning plate 132 slidably connected to an end of the support table 12 far away from the transitional conveying table 8, and the first positioning plate 131 and the second positioning plate 132 are both perpendicular to a table top of the support table 12.

Referring to fig. 8 and 9, one end of the second positioning plate 132 close to the first positioning plate 131 is hinged to the table top of the supporting table 12, a sliding block 134 is fixedly connected to the bottom wall of the other end of the second positioning plate 132, a circular arc-shaped sliding groove 135 centered on the hinge point of the second positioning plate 132 is formed in the table top of the supporting table 12, and the sliding block 134 is in sliding fit with the sliding groove 135.

Referring to fig. 8 and 10, the supporting table 12 is further provided with a positioning assembly 14 for positioning the sliding block 134, and the positioning assembly 14 includes a positioning block 141. The side wall of one side of the sliding groove 135 is provided with a plurality of positioning grooves 142 at equal intervals along the circumferential direction of the sliding groove 135, the positioning block 141 is hinged on the side wall of the notch of the positioning groove 142, one end of the positioning block 141 extends out of the positioning groove 142, and the other end of the positioning block 141 is located in the positioning groove 142.

Referring to fig. 8 and 10, a side wall of the positioning block 141 extending out of one end of the positioning groove 142 and facing away from the transition conveying table 8 is a cambered surface. The distance between the hinge shaft of the positioning block 141 and the end point of the positioning block 141 extending out of the positioning slot 142 and farthest from the hinge shaft of the positioning block 141 is smaller than the distance between the hinge shaft of the positioning block 141 and the side wall of the positioning slot 142 close to the side of the transitional conveying table 8. The side wall of the positioning groove 142 on the side far away from the transition conveying table 8 is provided with an accommodating gap for accommodating the positioning block 141 positioned in the positioning groove 142 when rotating. When the second positioning plate 132 rotates toward the first positioning plate 131, this allows the positioning block 141 to smoothly rotate into the positioning slot 142 when pushed by the sliding block 134.

Referring to fig. 8 and 10, a distance between an end point of one end of the positioning block 141 extending out of the positioning groove 142 and a hinge shaft of the positioning block 141 is greater than a distance between a side wall of the accommodating gap on a side away from the transition conveying table 8 and the hinge shaft of the positioning block 141. When the second positioning plate 132 rotates away from the first positioning plate 131, the positioning block 141 is not pushed into the positioning groove 142 by the sliding block 134.

Referring to fig. 9 and 10, a positioning spring 143 is disposed in the positioning groove 142, one end of the positioning spring 143 is fixedly connected to the bottom of the positioning groove 142, and the other end of the positioning spring 143 is fixedly connected to the positioning block 141. The one end that second locating plate 132 is close to first locating plate 131 still is equipped with elastic component 133, and elastic component 133 includes torsional spring installation axle 1331 and torsional spring 1332, and torsional spring installation axle 1331 fixed connection has cup jointed torsional spring 1332 on the torsional spring installation axle 1331 on the 12 mesas of brace table, and the lateral wall of one side of transition transport platform 8 is kept away from to a torque arm of torsional spring 1332 and second locating plate 132 is fixed continuous, and another torque arm of torsional spring 1332 links to each other with the lateral wall of first locating plate 131 is fixed. The torsion spring 1332 generates an elastic force that rotates the second positioning plate 132 away from the first positioning plate 131, and the elastic force pushes the sliding block 134 against the side wall of the positioning block 141 near the side of the transitional conveying table 8, so as to position the second positioning plate 132.

Referring to fig. 10, a control member 15 for controlling the rotation of the positioning block 141 is further provided on the support base 12. The control member 15 includes four transmission gears 151 and one transmission rack 152. A section of arc-shaped groove is formed in the bottom wall of the support table 12, and the four transmission gears 151 are arranged in the arc-shaped groove at equal intervals along the circumferential direction of the arc-shaped groove. Each transmission gear 151 is rotatably connected with the bottom of the arc-shaped groove through a transmission shaft, and the transmission shaft passes through the support table 12 and is fixedly connected with a hinge shaft of the positioning block 141. A rack mounting groove is formed in the side wall of the arc-shaped groove along the circumferential direction of the arc-shaped groove, and the transmission rack 152 is slidably mounted in the rack mounting groove. A driving rod 155 is fixedly connected to the transmission shaft of the transmission gear 151 farthest from the transition conveying table 8, and a driving handle 156 is fixedly connected to one end of the driving rod 155 far from the end connected to the transmission shaft.

The implementation principle of the processing method of the engineering truck oil tank plate in the embodiment of the application is as follows: when the oil tank plate is machined, the oil tank plate to be machined is firstly placed into the transport vehicle 2, then the transport vehicle 2 is pushed into the lifting frame 3, and the transport vehicle 2 is locked in the lifting frame 3 through the locking piece 26. Then, the lifting motor 42 is started, so that the lifting plate 47 drives the sample plate 100 to ascend integrally, then the uppermost sample plate 100 is separated out through the action of the first bump 55 and the sensing ball 61, then the sample plate 100 is pushed into the horizontal conveying table 7 through the pushing assembly 5, and the sample plate 100 after entering the horizontal conveying table 7 enters the positioning table 1 through the transition conveying table 8. And the speed of the sample plate 100 is reduced after it enters the positioning stage 1 due to the deceleration of the deceleration belt 95.

After the sample plate 100 abuts the first positioning plate 131 and the second positioning plate 132, the position of the sample plate 100 is determined, and then the robot performs grasping of the sample plate 100.

When the second positioning plate 132 needs to be adjusted, the second positioning plate 132 is rotated first, and in the process that the second positioning plate 132 rotates toward the first positioning plate 131, the sliding block 134 can push the positioning block 141 to rotate into the positioning slot 142 first, and then the sliding block 134 is separated from the positioning block 141, and at this moment, the positioning block 141 is rotated and reset by the resilience force of the positioning spring 143. If the second positioning plate 132 has been rotated to the desired position, the second positioning plate 132 is released, so that the second positioning plate 132 abuts against the side wall of the positioning block 141 under the action of the torsion spring 1332, and because the positioning block 141 is pulled by the spring and limited by the side wall of the accommodating gap, the positioning block 141 is not pushed by the second positioning plate 132, and at this time, the second positioning plate 132 is positioned under the abutting action of the elastic force of the torsion spring 1332 and the positioning block 141. When the second positioning plate 132 needs to be repositioned, the driving handle 156 is rotated, the driving handle 156 drives the transmission gears 151 to rotate through the driving rods 155, the transmission gears 151 rotate to drive the racks to slide, the racks drive all the transmission gears 151 to rotate, and the transmission gears 151 drive the hinge shafts of the positioning blocks 141 to rotate through the transmission shafts, so that all the positioning blocks 141 are driven to enter the positioning grooves 142 together. At this time, the second positioning plate 132 is restored to the original position by the torsion spring 1332.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A processing method of an engineering vehicle oil tank plate is characterized by comprising the following steps: the processing method comprises the following steps:

s1: cutting, leveling and drilling a raw material steel plate to obtain a sample plate (100);

s2: conveying the sample plate (100) to a positioning table (1) for positioning;

s3: conveying the positioned sample plate (100) to a bending machine by using a robot for bending;

the positioning table (1) comprises a support (11) used for fixing the positioning table (1) on the ground and a support table (12) installed on the support (11), the robot is arranged on one side of the support table (12), and the support table (12) is obliquely and downwards arranged from one side, far away from the robot, of the support table (12) to one side, close to the robot, of the support table (12) in the width direction; the supporting platform (12) is arranged in the length direction from one end of the supporting platform (12) to the other end of the supporting platform (12) in an inclined downward mode; the edge of one side of the support table (12) close to the robot and the width direction of the table top of the support table (12) are connected with a positioning plate (13);

in the step S2, the sample plate (100) is conveyed to the positioning table (1) through a conveying device;

the conveying device comprises a transitional conveying platform (8) connected with the positioning platform (1), a horizontal conveying platform (7) connected with the transitional conveying platform (8), a lifting frame (3) connected with the horizontal conveying platform (7) and a transport vehicle (2) matched with the lifting frame (3) for use and used for storing the sample plates (100), wherein a lifting assembly (4) used for lifting the sample plates (100) is installed on the lifting frame (3); the height of the horizontal conveying platform (7) is higher than that of the positioning platform (1);

the transport vehicle (2) comprises 4 vertical vehicle frames (21), a fixing plate (23) is fixedly connected between the tops of the adjacent vehicle frames (21), and a butt plate (24) is fixedly connected between the bottoms of the 2 adjacent vehicle frames (21) in the width direction of the transport vehicle (2); a limiting plate (22) used for limiting the sample plate (100) is fixedly connected to the side wall of the frame (21) along the height direction of the frame (21), the sample plate (100) is arranged on the abutting plate (24), and the side wall of the sample plate (100) is abutted to the side wall of the limiting plate (22); wheels (25) are mounted on the bottom wall of the abutting plate (24);

the lifting frame (3) comprises 4 vertical supporting frames (31), a cross beam (32) is fixedly connected between the top ends of the adjacent supporting frames (31), and a bearing plate (33) is fixedly connected between the bottom ends of the 2 adjacent supporting frames (31) along the length direction of the lifting frame (3); baffle plates (34) are fixedly connected to the side walls of 2 support frames (31) close to one side of the horizontal conveying table (7) along the height direction of the support frames (31), the limiting plates (22) close to one side of the horizontal conveying table (7) are abutted against the side walls of the baffle plates (34), the abutting plates (24) are abutted against the bearing plates (33), and locking pieces (26) used for locking the transport vehicle (2) and the lifting frame (3) are further arranged on the vehicle frame (21);

the lifting assembly (4) comprises motor supports (41) arranged on two sides of the lifting frame (3) in the width direction, a lifting motor (42) is arranged on the bottom wall of each motor support (41), a first bevel gear (43) is connected to an output shaft of each lifting motor (42) in a key mode, a threaded rod (46) is connected between each beam (32) and each motor support (41) in a rotating mode, a transmission rod (45) is connected to the bottom wall of each motor support (41) in a rotating mode, one end, close to the lifting motor (42), of each threaded rod (46) is fixedly connected with the corresponding transmission rod (45), a second bevel gear (44) is connected to each transmission rod (45) in a key mode, and the first bevel gears (43) are meshed with the second bevel gears (44);

the threaded rod (46) is in threaded connection with a lifting plate (47), and the bearing plate (33) is provided with a preformed groove (48) matched with the lifting plate (47); the top wall of the lifting plate (47) is abutted with the bottom wall of the sample plate (100); a guide rod (49) is fixedly connected between the cross beam (32) and the bearing plate (33), a guide hole (491) is formed in the lifting plate (47), and the guide rod (49) is connected with the guide hole (491) in a sliding manner;

a feeding port (492) is formed in the cross beam (32) close to one side of the horizontal conveying table (7), a pushing assembly (5) used for sending the sample plate (100) out of the feeding port (492) is installed on the cross beam (32) far away from one side of the horizontal conveying table (7), the pushing assembly (5) comprises a pushing cylinder (51) and a pushing plate (52), the pushing cylinder (51) is installed on the cross beam (32), and one end, penetrating through the cross beam (32), of a piston rod of the pushing cylinder (51) is connected with the pushing plate (52);

a first groove (53) is formed in the cross beam (32) arranged along the length direction of the lifting frame (3), a first spring (54) is arranged in the first groove (53), one end of the first spring (54) is fixedly connected with the bottom of the first groove (53), the other end of the first spring (54) is fixedly connected with a first bump (55), the first bump (55) is in sliding fit with the first groove (53), and the side wall of one side, facing the bottom of the lifting frame (3), of the first bump (55) is set to be an arc surface; the thickness of the first bump (55) is equal to the thickness of the sample plate (100);

an induction assembly is arranged above the first bump (55), the induction assembly comprises an induction ball (61), a second spring (62) and an inductor (63), a second groove (64) used for being matched with the induction ball (61) to slide is formed in the side wall of the cross beam (32), the inductor (63) used for inducing the pressure of the spring is arranged at the bottom of the second groove (64), one end of the second spring (62) is fixedly connected with the inductor (63), the other end of the second spring (62) is fixedly connected with the induction ball (61), and the inductor (63) is electrically connected with the lifting motor (42); the distance between the lowest point of the sensing ball (61) and the top wall of the first bump (55) is larger than the thickness of 1 sample plate (100) and smaller than the thickness of 2 sample plates (100).

2. The processing method of the oil tank plate of the engineering truck as claimed in claim 1, wherein the processing method comprises the following steps: two sides of the horizontal conveying table (7) are fixedly connected with first bosses (71) along the length direction of the horizontal conveying table (7), the side walls of the two adjacent sides of the first bosses (71) are provided with first mounting grooves (72) along the length direction of the first bosses (71), one ends of the first mounting grooves (72) are rotatably provided with first rollers (73), the other ends of the first mounting grooves (72) are rotatably provided with second rollers (75), at least one middle roller (74) is further arranged between the first rollers (73) and the second rollers (75), the first rollers (73) and the second rollers (75) are provided with transmission belts (76), the transmission belts (76) are abutted against the sample plate (100), the horizontal conveying table (7) is provided with a first driving motor (77), the output shafts of the first driving motors (77) are in key connection with the first rollers (73), and the transmission direction of the side of the transmission belts (76) abutted against the sample plate (100) is consistent with the advancing direction of the sample plate (100); two sides of the transition conveying table (8) are fixedly connected with second bosses (81) along the length direction of the transition conveying table (8), and the distance between the side walls of the two sides, close to each other, of the second bosses (81) is the same as the width of the sample plate (100).

3. The processing method of the oil tank plate of the engineering truck as claimed in claim 1, wherein the processing method comprises the following steps: the utility model discloses a sample plate's processing method, including the transition transport platform (8), locating platform (1) and second mounting groove (91) have been seted up along the length direction of third boss (9) on the lateral wall of the one side that third boss (9) are close to each other, second mounting groove (91) have been seted up in both sides fixedly connected with third boss (9), two on the lateral wall of the one side that third boss (9) are close to each other, the one end of second mounting groove (91) is rotated and is installed first speed reduction gyro wheel (92), second speed reduction gyro wheel (93) are installed in the other end rotation of second mounting groove (91), still install at least one intermediate speed reduction gyro wheel (94) between first speed reduction gyro wheel (92) and second speed reduction gyro wheel (93), install speed reduction drive belt (95) on first speed reduction gyro wheel (92) and the second speed reduction gyro wheel (93), speed reduction drive belt (95) and sample plate (100) looks butt, install second driving motor (96) on locating platform (1), the output shaft and first speed reduction gyro wheel (92) key-joint, the transmission direction of one side of drive belt (95) and sample plate (100) looks butt are opposite with the direction that sample plate (100) advance.

4. The processing method of the oil tank plate of the engineering truck as claimed in claim 1, wherein the processing method comprises the following steps: locating plate (13) include first locating plate (131) that set up along brace table (12) length direction and second locating plate (132) that set up along brace table (12) width direction, the one end that second locating plate (132) are close to first locating plate (131) is articulated mutually with brace table (12), be equipped with on brace table (12) and be used for spurring second locating plate (132) to keeping away from first locating plate (131) pivoted elastic component (133), be connected with sliding block (134) on the diapire of the one end of keeping away from first locating plate (131) second locating plate (132), set up one section circular-arc sliding tray (135) that uses the pin joint of second locating plate (132) as the centre of a circle on brace table (12), sliding block (134) slide with sliding tray (135) and link to each other, still be equipped with locating component (14) that are used for fixing a position sliding block (134) position on brace table (12).

5. The processing method of the oil tank plate of the engineering truck as claimed in claim 4, wherein the processing method comprises the following steps: the positioning assembly (14) comprises a positioning block (141), a plurality of positioning grooves (142) are formed in the side wall of the sliding groove (135) at equal intervals along the length direction of the sliding groove (135), the positioning block (141) is hinged to the side wall of a notch of each positioning groove (142), one end of the positioning block (141) extends out of the notch of each positioning groove (142), and the other end of the positioning block (141) is located in each positioning groove (142); the distance between the end point, farthest from the hinge shaft of the positioning block (141), of one end of the positioning block (141) extending out of the positioning groove (142) and the hinge shaft of the positioning block (141) is smaller than the distance between the side wall, close to the transition conveying table (8), of the positioning groove (142) and the hinge shaft of the positioning block (141), an accommodating gap for accommodating the positioning block (141) located in the positioning groove (142) during rotation is formed in the side wall, far from the hinge shaft of the positioning block (141), of one end of the positioning block (141) extending out of the positioning groove (142) and the hinge shaft of the positioning block (141), the distance between the end point, farthest from the hinge shaft of the positioning block (141), of the positioning block (142) and the hinge shaft of the positioning block (141) is larger than the distance between the side wall, far from the transition conveying table (8), of the accommodating gap and the positioning block (141), a positioning spring (143) is arranged in the positioning groove (142), one end of the positioning spring (143) is fixedly connected with the groove bottom of the positioning groove (142), the other end of the positioning spring (143) is fixedly connected with the positioning block (141), and a control element (15) for controlling the rotation of the positioning block (141) is further arranged on the support table (12).

6. The processing method of the oil tank plate of the engineering truck as claimed in claim 5, wherein the processing method comprises the following steps: the control piece (15) comprises a plurality of transmission gears (151) and transmission racks (152), an arc-shaped groove is formed in the bottom wall of the support platform (12), the transmission gears (151) are arranged at intervals along the circumferential direction of the arc-shaped groove, each transmission gear (151) corresponds to one positioning block (141), the transmission gears (151) are rotatably connected with the bottom of the arc-shaped groove through transmission shafts, the transmission shafts penetrate through the support platform (12) and are fixedly connected with the hinge shaft, rack mounting grooves are formed in the side walls of the arc-shaped groove along the circumferential direction of the arc-shaped groove, the transmission racks (152) are slidably mounted in the rack mounting grooves, and the transmission racks (152) are meshed with the transmission gears (151); one end key-type that the transmission gear (151) deviates from the articulated shaft has actuating lever (155), one end fixedly connected with drive handle (156) that one end that the actuating lever (155) kept away from and link to each other with transmission gear (151).

7. The processing method of the oil tank plate of the engineering truck as claimed in claim 1, wherein the processing method comprises the following steps: locking piece (26) including fixed connection first bolt ring (261), fixed connection second bolt ring (262) and bolt carriage (2633) and bolt (263) on frame (21) on support frame (31), the axis of first bolt ring (261), the axis of second bolt ring (262) and the axis coincidence of bolt carriage (2633), slidable mounting has bolt (263) in bolt carriage (2633), bolt (263) and first bolt ring (261) and second bolt ring (262) sliding fit.