Mud guard split mounting angle control assistive device

Abstract

The invention discloses an angle control assistive device for mudguard split charging. The angle control assistive device comprises a horizontally-lying I-shaped steel frame and four positioning blocks. Each positioning block comprises a fixed block, an adjusting block and a pair of positioning supporting arms; the fixing block is fixed to the end of the horizontally-lying I-shaped steel frame in an aligned mode, the adjusting block and the fixing block can be in up-down matched butt joint to form a positioning block, one side of the adjacent end face of the adjusting block and one side of the adjacent end face of the fixing block are rotationally connected in a limiting mode through a hinged shaft, the adjusting block can turn over by 0-90 degrees relative to the fixing block, and the left side wall and the right side wall of the adjusting block are symmetrically and rotationally connected with positioning supporting arms. A plurality of limiting insertion holes which are arranged up and down are symmetrically formed in the left side wall and the right side wall of the fixing block, an insertion convex part is arranged on the inner side of the free end of each positioning supporting arm, and the insertion convex parts can be inserted into the corresponding limiting insertion holes in a matched mode; the device can be suitable for split charging of the fender of the tractor of other types, accurate limiting and fixing of the fender of the tractor of different types can be achieved, and deviation, caused by inaccurate positioning, of split charging work is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of fender assembly, and in particular to an auxiliary tool for controlling the angle of fender assembly. Background Art

[0002] In the processing of fenders for tractors, the fenders need to be assembled using mounting fixtures.

[0003] First, the fender of the tractor is sleeved on the horizontal cross arm of the fixture through the mounting hole of the upper side wall of the fender. A side end limit rod is arranged below the horizontal cross arm and is arranged parallel to the horizontal cross arm. The side end limit rod can be in contact with the outer side wall of the fender of the tractor to limit the displacement of the fender of the tractor in the left and right directions. At this time, the fender of the tractor will swing back and forth with the horizontal cross arm as the axis; see Figure 1 As shown, a positioning frame 1' is correspondingly arranged at the lower part of the rear end surface of the fender of the tractor, and the positioning frame 1' comprises a horizontally lying I-beam frame 11' and four limit blocks 12', and the four limit blocks 12' are arranged in groups of two and symmetrically on both sides of the outer wall surface of the two horizontal cross arms of the I-beam frame 11'; when the rear end surface of the fender of the tractor swings backward with the horizontal cross arm as the axis, it will contact with a group of limit blocks 12' on the same side of a horizontal cross arm of the I-beam frame 11' of the positioning frame 1' to limit the rearward movement of the fender of the tractor; after such arrangement, the fender of the tractor can be assembled.

[0004] However, the existing installation fixture has low adaptability and can only be used for the subassembly of mudguards of tractors of a single model, but is not suitable for the subassembly of mudguards of tractors of other models. This is because the position between the horizontal cross arm and the positioning frame on the fixture is fixed, while the sizes of mudguards of tractors of other models are different. When it is sleeved on the horizontal cross arm, there is a gap of 1-6 cm between the rear end face of the mudguard and the corresponding positioning block. There is no limit on the rear end face of the mudguard during subassembly, which will cause a certain vertical deviation of the mudguard as a whole during subassembly, causing deviation in the subassembly work. After using the installation fixture for subassembly, the installation of the mudguard on the corresponding tractor will be skewed, resulting in poor closure on one side of the mudguard cover after installation. At the same time, there is a risk of scratching due to the skewed mudguard and the small gap between the tire, which affects the installation quality of the mudguard and requires rework, which is difficult to meet the use requirements. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a fender assembly angle control auxiliary device, which can be applicable to the assembly of fenders of tractors of other models, and can achieve precise limiting and fixing of fenders of tractors of different models, thereby preventing deviations in the assembly work due to inaccurate positioning.

[0006] The present invention provides a mudguard assembly angle control auxiliary tool, comprising an initial positioning frame, the initial positioning frame comprising a horizontally lying I-beam frame and four positioning blocks, the four positioning blocks are arranged in groups of two and are symmetrically arranged on both sides of the outer wall of two horizontal cross arms of the I-beam frame; the initial positioning frame of the prior art is suitable for the traction of the vehicle model J6P6*4, but not suitable for the traction of the vehicle model J6P4*2. When assembling the non-suitable vehicle model, there is a gap of a certain distance (generally a distance of 1-6 cm) between the middle of the mudguard and the clamp, causing the position of the mudguard to deviate and form a gap when the mudguard is assembled and fixed, so that the incorrect installation position of the mudguard affects the quality of application;

[0007] Each of the positioning blocks comprises a fixed block, an adjusting block and a pair of positioning support arms; the fixed block is fixed in position at the end of the horizontally lying I-beam frame, the adjusting block and the fixed block can be matched and connected up and down to form a positioning block, the adjusting block and the fixed block are connected to each other by a hinge shaft on one side of the adjacent end surface, the adjusting block can be flipped 0°-90° relative to the fixed block, the left and right side walls of the adjusting block are symmetrically connected to a positioning support arm, the left and right side walls of the fixed block are symmetrically provided with a plurality of limit sockets arranged up and down, and the inner side of the free end of each positioning support arm is provided with a plug-in protrusion, which can be matched and plugged into the corresponding limit socket, when the adjusting block and the fixed block are arranged up and down and located in the same vertical plane, the lower ends of a pair of positioning support arms are respectively inserted into the corresponding limit sockets of the fixed block, and the adjusting block and the fixed block are locked into a vertical plane; when the fender of the tractor is aligned with the positioning When there is a 3CM gap between the frame, the limit of the positioning support arm is released, the adjusting block is rotated to a certain angle, and the plug-in convex part of the free end of the positioning support arm is inserted into the limit socket of the fixed block at the corresponding position to keep the adjusting block in a vertical position relative to the fixed block. At this time, the upper end of the adjusting block can be limitedly contacted with the rear end face of the tractor fender, which solves the problem that there may be vertical torsion caused by the gap between this type of fender and the positioning frame during subassembly, resulting in deviation in the subassembly work; when there is a 6CM gap between the tractor fender and the positioning frame, the limit of the positioning support arm is released, the adjusting block is rotated to be in a vertical state with the fixed block, and the plug-in convex part of the free end of the positioning support arm is inserted into the limit socket of the fixed block at the corresponding position to keep the adjusting block vertically relative to the fixed block. At this time, the upper end face of the adjusting block can be limitedly contacted with the rear end face of the tractor fender.

[0008] The cam is adapted to engage with the rear end of the frame when the cam is engaged with the rear end of the frame and to engage with the rear end of the frame when the cam is engaged.

[0009] The positioning bracket includes two transverse P-shaped frames symmetrically arranged front and back, two cross beams are horizontally connected between the upper ends of the two transverse P-shaped frames, front and rear end positioning parts are symmetrically arranged in the middle of the lower end surfaces of the two cross beams, and a limiting part on the outer side of the tractor fender is arranged at the end of the extension arm of each transverse P-shaped frame.

[0010] The limiting portion of the outer side of the tractor fender includes a fixed baffle and an extendable sliding plate. Two guide screws are horizontally arranged on the side wall surface of the fixed baffle. A long hole is arranged in the length direction of the extendable sliding plate. The long hole is sleeved on the two guide screws. The extendable sliding plate can slide left and right with the two guide screws as support points to respectively cope with fenders with different gaps and limit contact with their side end surfaces. The extendable sliding plate is in the shape of a straight sheet or an inverted U-shaped structure sheet, and the long hole is arranged in the middle of the length direction of the straight sheet or on a side wall surface of the inverted U-shaped structure sheet.

[0011] The extension arm of each horizontally placed P-shaped frame is a two-section telescopic arm to adapt to the width of different types of fenders and to limit and fix them laterally.

[0012] A reinforcement rod is fixedly connected to the middle part of the top surface of the two beams. The provision of the reinforcement rod not only enhances the overall stability of the positioning bracket, but also facilitates the operator to take and place the entire positioning bracket.

[0013] A left-right positioning slot is fixedly connected to the middle part of the bottom surface of the reinforcement rod, and the two inner side walls of the left-right positioning slot are limitedly contacted with the middle part of the side wall of the longitudinal connecting arm of the corresponding I-beam frame; the thickness of the positioning slot and the longitudinal connecting arm of the positioning frame are matched to achieve the card connection and positioning between the two, so that the left-right installation cooperation between the positioning frame and the positioning bracket is more stable.

[0014] A reinforcing angle steel is fixedly connected at the joint between the end of each cross beam and the horizontally placed P-shaped frame connected in position, and the reinforcing angle steel can strengthen the connection strength between the cross beam and the horizontally placed P-shaped frame.

[0015] Each front and rear end positioning part is a split linkage adjustment structure, which includes two hollow square steel tube bodies, an internal threaded adjustment tube, a threaded rod, two connecting sliders and two pads; the two hollow square steel tube bodies are symmetrically fixedly connected to the lower end surface of the same cross beam close to one end of the two horizontal cross arms of the I-beam frame, and the two ends of the threaded rod are respectively sleeved in the two hollow square steel tube bodies, the internal threaded adjustment tube is screwed into the middle of the threaded rod and exposed between the two hollow square steel tube bodies, and each connecting slider is respectively sleeved on the corresponding hollow square steel tube body away from the internal threaded adjustment tube. Each connecting slider is fixedly connected with a pad at one end away from the internal threaded adjustment tube, and each connecting slider is rotatably connected to one end of the threaded rod near one end of the internal threaded adjustment tube. According to the screw principle and the use of connecting sliders and hollow square steel The radial limiting effect between the tube bodies, rotating the two internally threaded adjustment tubes on the left and right drives the threaded rod to rotate, so that the four symmetrical connecting slide blocks on the left and right move outward or inward synchronously in the corresponding hollow square steel tube body, driving the pad block to move outward or inward synchronously, and the spacing between the pad block and the hollow square steel tube body can be adjusted to achieve the effect of adjusting the length of the entire front and rear end positioning parts, which can eliminate the problem of unstable front and rear end positioning caused by wear of the front and rear end positioning parts due to repeated use. At the same time, it has high adaptability. The device can accurately limit and fix two mudguards of the same model at the front and rear ends at the same time and then carry out subassembly work; the internally threaded adjustment tube is designed as an anti-slip structure, and the outer wall shape of the internally threaded adjustment tube is circular or regular polygonal, and the outer wall surface is engraved with anti-slip patterns.

[0016] Each front and rear end positioning part is a split split adjustment structure, which includes two hollow square steel tube bodies, two internal threaded adjustment blocks, two sections of threaded rods, two connecting sliders and two pads; the two hollow square steel tube bodies are symmetrically fixedly connected to the lower end surface of the same cross beam close to one end of the two horizontal cross arms of the I-beam frame, the inner ends of the two sections of threaded rods are respectively screwed and fixed with a corresponding internal threaded adjustment block, the two internal threaded adjustment blocks are exposed between the two adjacent hollow square steel tube bodies, the outer ends of the two sections of threaded rods are respectively accommodated in the corresponding two hollow square steel tube bodies, each connecting slider is respectively sleeved on the end of the corresponding hollow square steel tube body away from the internal threaded adjustment block, each connecting slider is fixedly connected to a pad at one end away from the internal threaded adjustment block, and each connecting slider is connected to a corresponding one at one end close to the internal threaded adjustment block One end of the threaded rod is rotatably connected. According to the screw principle and the radial limiting effect between the connecting slider and the hollow square steel tube body, a pair of internal threaded adjustment blocks at the front end or rear end are respectively rotated to drive the pair of threaded rods at the front end or rear end to rotate, so that the corresponding two connecting sliders move outward or inward synchronously in the hollow square steel tube body, driving the pad to move outward or inward synchronously. The distance between the pad at the front end or rear end and the hollow square steel tube body can be synchronously adjusted according to needs, so that the adjustment distances at the front end and the rear end can be different. This device can simultaneously realize the precise limiting and fixing of two different types of mudguards at the front end and the rear end for subassembly; each of the internal threaded adjustment blocks is designed as an anti-slip structure, and the outer contour of the internal threaded adjustment block is a circle or a regular polygon, and the outer wall is engraved with anti-slip patterns circumferentially.

[0017] Beneficial Effects

[0018] The present invention can be applied to the subassembly of fenders for tractors of other models, and can realize accurate limiting and fixing of fenders for tractors of different models, thereby preventing deviations in the subassembly work caused by inaccurate positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a positioning frame in the prior art.

[0020] Figure 2 It is a schematic diagram of the positioning frame structure of the first embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of the two-body structure of an embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the tripartite structure of an embodiment of the present invention.

[0023] Figure 5 It is a schematic diagram of the combined structure of embodiment 3 of the present invention.

[0024] Figure 6 It is a schematic diagram of the combined structure of embodiment 4 of the present invention.

[0025] Figure 7 It is a schematic diagram of the enlarged structure of the front and rear end positioning parts of the fourth embodiment of the present invention.

[0026] Figure 8 It is a schematic diagram of the enlarged structure of the front and rear end positioning parts of the fifth embodiment of the present invention.

[0027] In the figure:

[0028] 1', positioning frame; 11', horizontally lying I-beam frame; 12', limit block;

[0029] 1. Initial positioning frame; 11. I-beam frame; 12. Positioning block; 121. Fixing block; 1211. Limiting jack; 122. Adjusting block; 123. Positioning support arm;

[0030] 2. Positioning bracket; 21. Horizontally placed P-shaped frame; 211. Limiting part on the outer side of the tractor fender; 2111. Fixed baffle; 2112. Extendable slide; 2113. Guide screw; 2114. Long hole; 22. Crossbeam; 221. Front and rear end positioning parts; 2211. Hollow square steel tube; 2212. Internally threaded adjustment tube; 2213. Threaded rod; 2214. Connecting slider; 2215. Pad; 2216. Internally threaded adjustment block; 23. Reinforcement rod; 231. Left and right positioning slots; 24. Reinforcement angle steel. DETAILED DESCRIPTION

[0031] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1

[0035] See also Figure 2 As shown, a fender assembly angle control auxiliary tool comprises an initial positioning frame 1, wherein the initial positioning frame 1 comprises a horizontally lying I-beam frame 11 and four positioning blocks 12, wherein the four positioning blocks 12 are grouped in pairs and are symmetrically arranged on both sides of the outer wall of the two horizontal cross arms of the I-beam frame 11;

[0036] Each of the positioning blocks 12 includes a fixed block 121, an adjusting block 122 and a pair of positioning support arms 123; the fixed block 121 is fixed in position at the end of the horizontally lying I-beam frame 11, the adjusting block 122 and the fixed block 121 can be matched and connected up and down to form a positioning block, the adjusting block 122 and the fixed block 121 are connected to each other by a hinge shaft on one side of the adjacent end surface, the adjusting block 122 can be flipped 90° relative to the fixed block 121, and the left and right side walls of the adjusting block 122 are symmetrically connected to a positioning support arm 123, and the left and right side walls of the fixed block 121 are symmetrically provided with three limit sockets 1211 arranged up and down, and the inner side of the free end of each positioning support arm 123 is provided with a plug-in protrusion, which can be matched and plugged into the corresponding limit socket 1211.

[0037] Example 2

[0038] See also Figure 3 As shown, a fender assembly angle control auxiliary tool comprises an initial positioning frame 1, wherein the initial positioning frame 1 comprises a horizontally lying I-beam frame 11 and four positioning blocks 12, wherein the four positioning blocks 12 are grouped in pairs and are symmetrically arranged on both sides of the outer wall of the two horizontal cross arms of the I-beam frame 11;

[0039] It also includes a positioning bracket 2, which is detachably limited and sleeved on the top of the initial positioning bracket 1; the horizontal distance between the outer walls of the two horizontal cross arms of the I-beam frame 11 is smaller than the horizontal distance between the front and rear end frames at the corresponding positions of the positioning bracket 2; and the left ends of the front and rear end frames at the corresponding positions of the positioning bracket 2 are symmetrically protruded with limiting parts on the outer side of the tractor fender.

[0040] The positioning bracket 2 includes two transverse P-shaped frames 21 symmetrically arranged front and back, two cross beams 22 are horizontally connected between the upper ends of the two transverse P-shaped frames 21, and front and rear end positioning parts 221 are symmetrically arranged in the middle of the lower end surfaces of the two cross beams 22, and a tractor fender outer side limiting part 211 is arranged at the end of the extension arm of each transverse P-shaped frame 21.

[0041] A reinforcing angle steel 24 is fixedly connected to the joint between the end of each cross beam 22 and the horizontally placed P-shaped frame 21 connected in position.

[0042] Example 3

[0043] See also Figure 4-Figure 5 As shown, a fender assembly angle control auxiliary tool comprises an initial positioning frame 1, wherein the initial positioning frame 1 comprises a horizontally lying I-beam frame 11 and four positioning blocks 12, wherein the four positioning blocks 12 are grouped in pairs and are symmetrically arranged on both sides of the outer wall of the two horizontal cross arms of the I-beam frame 11;

[0044] It also includes a positioning bracket 2, which is detachably limited and sleeved on the top of the initial positioning bracket 1; the horizontal distance between the outer walls of the two horizontal cross arms of the I-beam frame 11 is smaller than the horizontal distance between the front and rear end frames at the corresponding positions of the positioning bracket 2; and the left ends of the front and rear end frames at the corresponding positions of the positioning bracket 2 are symmetrically protruded with limiting parts on the outer side of the tractor fender.

[0045] The positioning bracket 2 includes two transverse P-shaped frames 21 symmetrically arranged front and back, two cross beams 22 are horizontally connected between the upper ends of the two transverse P-shaped frames 21, and front and rear end positioning parts 221 are symmetrically arranged in the middle of the lower end surfaces of the two cross beams 22, and a tractor fender outer side limiting part 211 is arranged at the end of the extension arm of each transverse P-shaped frame 21.

[0046] A reinforcement rod 23 is fixedly connected to the middle of the top surface of the two cross beams 22 .

[0047] A left-right positioning slot 231 is fixedly connected to the middle of the bottom surface of the reinforcing rod 23 , and the two inner side walls of the left-right positioning slot 231 are limitedly contacted with the middle of the side wall of the longitudinal connecting arm of the I-beam frame 11 in the corresponding position.

[0048] A reinforcing angle steel 24 is fixedly connected to the joint between the end of each cross beam 22 and the horizontally placed P-shaped frame 21 connected in position.

[0049] Example 4

[0050] See also Figure 2 , Figure 6-Figure 7As shown, a fender assembly angle control auxiliary tool comprises an initial positioning frame 1, wherein the initial positioning frame 1 comprises a horizontally lying I-beam frame 11 and four positioning blocks 12, wherein the four positioning blocks 12 are grouped in pairs and are symmetrically arranged on both sides of the outer wall of the two horizontal cross arms of the I-beam frame 11;

[0051] Each of the positioning blocks 12 includes a fixed block 121, an adjusting block 122 and a pair of positioning support arms 123; the fixed block 121 is positioned and fixed at the end of the horizontally lying I-beam frame 11, the adjusting block 122 and the fixed block 121 can be matched and connected up and down to form a positioning block, the adjusting block 122 and the fixed block 121 are connected to each other by a hinge shaft on one side of the adjacent end surface, the adjusting block 122 can be flipped 0°-90° relative to the fixed block 121, the left and right side walls of the adjusting block 122 are symmetrically rotatably connected with a positioning support arm 123, the left and right side walls of the fixed block 121 are symmetrically provided with three limit sockets 1211 arranged up and down, and the inner side of the free end of each positioning support arm 123 is provided with a plug-in protrusion, which can be matched and plugged into the corresponding limit socket 1211.

[0052] It also includes a positioning bracket 2, which is detachably limited and sleeved on the top of the initial positioning bracket 1; the horizontal distance between the outer walls of the two horizontal cross arms of the I-beam frame 11 is smaller than the horizontal distance between the front and rear end frames at the corresponding positions of the positioning bracket 2; and the left ends of the front and rear end frames at the corresponding positions of the positioning bracket 2 are symmetrically protruded with limiting parts on the outer side of the tractor fender.

[0053] The positioning bracket 2 includes two transverse P-shaped frames 21 symmetrically arranged front and back, two cross beams 22 are horizontally connected between the upper ends of the two transverse P-shaped frames 21, and front and rear end positioning parts 221 are symmetrically arranged in the middle of the lower end surfaces of the two cross beams 22, and a tractor fender outer side limiting part 211 is arranged at the end of the extension arm of each transverse P-shaped frame 21.

[0054] The outer side limiting portion 211 of the tractor fender includes a fixed baffle 2111 and an extendable slide 2112. Two guide screws 2113 are horizontally arranged on the side wall of the fixed baffle 2111. A long hole 2114 is arranged in the length direction of the extendable slide 2112. The long hole 2114 is sleeved on the two guide screws 2113. The extendable slide 2112 can slide left and right with the two guide screws 2113 as support points. The extendable slide 2112 is in the shape of a straight sheet, and the long hole 2114 is arranged in the middle of the length direction of the straight sheet.

[0055] The extension arm of each horizontally placed P-shaped frame 21 is a two-section telescopic arm.

[0056] A reinforcement rod 23 is fixedly connected to the middle of the top surface of the two cross beams 22 .

[0057] A left-right positioning slot 231 is fixedly connected to the middle of the bottom surface of the reinforcing rod 23 , and the two inner side walls of the left-right positioning slot 231 are limitedly contacted with the middle of the side wall of the longitudinal connecting arm of the I-beam frame 11 in the corresponding position.

[0058] A reinforcing angle steel 24 is fixedly connected to the joint between the end of each cross beam 22 and the horizontally placed P-shaped frame 21 connected in position.

[0059] Each front and rear end positioning part 221 is a split linkage adjustment structure, which includes two hollow square steel tube bodies 2211, an internal threaded adjustment tube 2212, a threaded rod 2213, two connecting sliders 2214 and two pads 2215; the two hollow square steel tube bodies 2211 are symmetrically fixedly connected to the lower end surface of the same cross beam 22 close to one end of the two horizontal cross arms of the I-beam frame 11, the two ends of the threaded rod 2213 are respectively sleeved in the two hollow square steel tube bodies 2211, the internal threaded adjustment tube 2212 is screwed into the middle of the threaded rod 2213 and exposed in the two hollow square Between the steel tube bodies 2211, each connecting slider 2214 is respectively sleeved on the end of the corresponding hollow square steel tube body 2211 away from the internal threaded adjustment tube 2212, and each connecting slider 2214 is fixedly connected with a pad 2215 at one end away from the internal threaded adjustment tube 2212, and each connecting slider 2214 is rotatably connected with one end of the threaded rod 2213 near one end of the internal threaded adjustment tube 2212; the internal threaded adjustment tube 2212 is designed as an anti-slip structure, and the outer wall shape of the internal threaded adjustment tube 2212 is circular or regular polygonal, and the outer wall surface is engraved with anti-slip patterns.

[0060] Example 5

[0061] See also Figure 2 , Figure 6 , Figure 8 As shown, a fender assembly angle control auxiliary tool comprises an initial positioning frame 1, wherein the initial positioning frame 1 comprises a horizontally lying I-beam frame 11 and four positioning blocks 12, wherein the four positioning blocks 12 are grouped in pairs and are symmetrically arranged on both sides of the outer wall of the two horizontal cross arms of the I-beam frame 11;

[0062] Each of the positioning blocks 12 includes a fixed block 121, an adjusting block 122 and a pair of positioning support arms 123; the fixed block 121 is positioned and fixed at the end of the horizontally lying I-beam frame 11, the adjusting block 122 and the fixed block 121 can be matched and connected up and down to form a positioning block, the adjusting block 122 and the fixed block 121 are connected to each other by a hinge shaft on one side of the adjacent end surface, the adjusting block 122 can be flipped 0°-90° relative to the fixed block 121, the left and right side walls of the adjusting block 122 are symmetrically rotatably connected with a positioning support arm 123, the left and right side walls of the fixed block 121 are symmetrically provided with three limit sockets 1211 arranged up and down, and the inner side of the free end of each positioning support arm 123 is provided with a plug-in protrusion, which can be matched and plugged into the corresponding limit socket 1211.

[0063] It also includes a positioning bracket 2, which is detachably limited and sleeved on the top of the initial positioning bracket 1; the horizontal distance between the outer walls of the two horizontal cross arms of the I-beam frame 11 is smaller than the horizontal distance between the front and rear end frames at the corresponding positions of the positioning bracket 2; and the left ends of the front and rear end frames at the corresponding positions of the positioning bracket 2 are symmetrically protruded with limiting parts on the outer side of the tractor fender.

[0064] The positioning bracket 2 includes two transverse P-shaped frames 21 symmetrically arranged front and back, two cross beams 22 are horizontally connected between the upper ends of the two transverse P-shaped frames 21, and front and rear end positioning parts 221 are symmetrically arranged in the middle of the lower end surfaces of the two cross beams 22, and a tractor fender outer side limiting part 211 is arranged at the end of the extension arm of each transverse P-shaped frame 21.

[0065] The outer side limiting portion 211 of the tractor fender includes a fixed baffle 2111 and an extendable slide 2112. Two guide screws 2113 are horizontally arranged on the side wall of the fixed baffle 2111. A long hole 2114 is arranged in the length direction of the extendable slide 2112. The long hole 2114 is sleeved on the two guide screws 2113. The extendable slide 2112 can slide left and right with the two guide screws 2113 as support points. The extendable slide 2112 is in the shape of a straight sheet, and the long hole 2114 is arranged in the middle of the length direction of the straight sheet.

[0066] The extension arm of each horizontally placed P-shaped frame 21 is a two-section telescopic arm.

[0067] A reinforcement rod 23 is fixedly connected to the middle of the top surface of the two cross beams 22 .

[0068] A left-right positioning slot 231 is fixedly connected to the middle of the bottom surface of the reinforcing rod 23 , and the two inner side walls of the left-right positioning slot 231 are limitedly contacted with the middle of the side wall of the longitudinal connecting arm of the I-beam frame 11 in the corresponding position.

[0069] A reinforcing angle steel 24 is fixedly connected to the joint between the end of each cross beam 22 and the horizontally placed P-shaped frame 21 connected in position.

[0070] Each front and rear end positioning part 221 is a split split adjustment structure, which includes two hollow square steel tube bodies 2211, two internal thread adjustment blocks 2216, two threaded rods 2213, two connecting sliders 2214 and two pads 2215; the two hollow square steel tube bodies 2211 are symmetrically fixedly connected to the lower end surface of the same cross beam 22 close to one end of the two horizontal cross arms of the I-beam frame 11, the inner ends of the two threaded rods 2213 are respectively screwed and fixed with a corresponding internal thread adjustment block 2216, and the two internal thread adjustment blocks 2216 are exposed between the two adjacent hollow square steel tube bodies 2211, and the two threaded rods 2213 are respectively screwed and fixed to the corresponding internal thread adjustment block 2216. The outer ends are respectively accommodated in the corresponding two hollow square steel tube bodies 2211, and each connecting slider 2214 is respectively sleeved on the end of the corresponding hollow square steel tube body 2211 away from the internal thread adjustment block 2216. The end of each connecting slider 2214 away from the internal thread adjustment block 2216 is fixedly connected with a pad 2215, and the end of each connecting slider 2214 close to the internal thread adjustment block 2216 is rotatably connected to one end of a corresponding threaded rod 2213; each of the internal thread adjustment blocks 2216 is designed as an anti-slip structure, and the outer contour of the internal thread adjustment block 2216 is a circle or a regular polygon, and the outer wall is engraved with anti-slip patterns circumferentially.

[0071] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A fender assembly angle control auxiliary device, characterized in that: The initial positioning frame (1) comprises a horizontally lying I-beam frame (11) and four positioning blocks (12), wherein the four positioning blocks (12) are arranged in groups of two and are symmetrically arranged on both sides of the outer wall surface of two horizontal cross arms of the I-beam frame (11); Each positioning block (12) comprises a fixed block (121), an adjusting block (122) and a pair of positioning support arms (123); the fixed block (121) is fixed at an end of a horizontally lying I-beam frame (11); the adjusting block (122) and the fixed block (121) can be matched and connected up and down to form a positioning block; the adjusting block (122) and the fixed block (121) are connected to each other at one side of adjacent end surfaces through a hinge shaft for limited rotation; the adjusting block (122) can be turned 0°-90° relative to the fixed block (121); the left and right side walls of the adjusting block (122) are symmetrically connected to a positioning support arm (123); the left and right side walls of the fixed block (121) are symmetrically provided with a plurality of limit plug holes (1211) arranged up and down; the inner side of the free end of each positioning support arm (123) is provided with a plug-in protrusion, and the plug-in protrusion can be matched and plugged into the corresponding limit plug hole (1211).

2. The mudguard assembly angle control auxiliary device according to claim 1, characterized in that: The invention also comprises a positioning bracket (2), wherein the positioning bracket (2) is detachably limited and sleeved on the top of the initial positioning bracket (1); the horizontal distance between the outer side walls of the two horizontal cross arms of the I-beam frame (11) is smaller than the horizontal distance between the front and rear end frames of the corresponding position of the positioning bracket (2); and the left side ends / or right side ends of the front and rear end frames of the corresponding position of the positioning bracket (2) are symmetrically protruded with limiting portions on the outer side of the fender of the tractor.

3. The mudguard assembly angle control auxiliary device according to claim 2, characterized in that: The positioning bracket (2) comprises two transverse P-shaped frames (21) symmetrically arranged front and rear, two cross beams (22) are horizontally connected between the upper ends of the two transverse P-shaped frames (21), front and rear end positioning parts (221) are symmetrically arranged in the middle of the lower end surfaces of the two cross beams (22), and a tractor fender outer side limiting part (211) is arranged at the end of the extension arm of each transverse P-shaped frame (21).

4. The mudguard assembly angle control auxiliary device according to claim 3, characterized in that: The outer side limiting portion (211) of the tractor fender comprises a fixed blocking piece (2111) and an extendable sliding piece (2112); two guide screws (2113) are horizontally arranged on the side wall surface of the fixed blocking piece (2111); a long hole (2114) is arranged in the length direction of the extendable sliding piece (2112); the long hole (2114) is sleeved on the two guide screws (2113); the extendable sliding piece (2112) can slide left and right with the two guide screws (2113) as support points; the extendable sliding piece (2112) is in the shape of a straight sheet or an inverted U-shaped sheet; the long hole (2114) is arranged in the middle of the straight sheet in the length direction or on a side wall surface of the inverted U-shaped sheet.

5. The mudguard assembly angle control auxiliary tool according to claim 4, characterized in that: The extension arm of each horizontally placed P-shaped frame (21) is a two-section telescopic arm.

6. The mudguard assembly angle control auxiliary tool according to claim 5, characterized in that: A reinforcement rod (23) is fixedly connected to the middle of the top surfaces of the two cross beams (22).

7. The mudguard assembly angle control auxiliary tool according to claim 6, characterized in that: A left-right positioning slot (231) is fixedly connected to the middle of the bottom surface of the reinforcing rod (23), and two inner side walls of the left-right positioning slot (231) are limitedly contacted with the middle of the side wall of the longitudinal connecting arm of the corresponding I-beam frame (11).

8. The mudguard assembly angle control auxiliary tool according to claim 7, characterized in that: A reinforcing angle steel (24) is fixedly connected at the junction between the end of each cross beam (22) and the horizontally placed P-shaped frame (21) connected in position.

9. The mudguard assembly angle control auxiliary tool according to claim 3, characterized in that: Each front and rear end positioning part (221) is a split linkage adjustment structure, which includes two hollow square steel tube bodies (2211), an internal threaded adjustment tube (2212), a threaded rod (2213), two connecting slide blocks (2214) and two cushion blocks (2215); the two hollow square steel tube bodies (2211) are respectively and symmetrically fixedly connected to one end of the lower end surface of the same cross beam (22) close to the two horizontal cross arms of the I-beam frame (11), the two ends of the threaded rod (2213) are respectively sleeved in the two hollow square steel tube bodies (2211), the internal threaded adjustment tube (2212) is screwed into the middle of the threaded rod (2213) and exposed in the two hollow Between the square steel tube bodies (2211), each connecting slider (2214) is respectively sleeved on the end of the corresponding hollow square steel tube body (2211) away from the internal threaded adjustment tube (2212), and each connecting slider (2214) is fixedly connected with a cushion block (2215) at one end away from the internal threaded adjustment tube (2212), and each connecting slider (2214) is rotatably connected with one end of the threaded rod (2213) at one end close to the internal threaded adjustment tube (2212); the internal threaded adjustment tube (2212) is designed as an anti-slip structure, and the outer wall shape of the internal threaded adjustment tube (2212) is circular or regular polygonal, and the outer wall surface is engraved with anti-slip patterns.

10. The mudguard assembly angle control auxiliary tool according to claim 3, characterized in that: Each front and rear end positioning part (221) is a split split adjustment structure, which includes two hollow square steel tube bodies (2211), two internal thread adjustment blocks (2216), two threaded rods (2213), two connecting slide blocks (2214) and two cushion blocks (2215); the two hollow square steel tube bodies (2211) are respectively and symmetrically fixedly connected to one end of the lower end surface of the same cross beam (22) close to the two horizontal cross arms of the I-beam frame (11), the inner side ends of the two threaded rods (2213) are respectively screwed and fixed with a corresponding internal thread adjustment block (2216), and the two internal thread adjustment blocks (2216) are both exposed between two adjacent hollow square steel tube bodies (2211), and the two threaded rods (2213) are respectively and symmetrically fixedly connected to the lower end surface of the same cross beam (22) close to the two horizontal cross arms of the I-beam frame (11). 3) The outer ends are respectively accommodated in the corresponding two hollow square steel tube bodies (2211), and each connecting slider (2214) is respectively sleeved on the end of the corresponding hollow square steel tube body (2211) away from the internal thread adjustment block (2216). The end of each connecting slider (2214) away from the internal thread adjustment block (2216) is fixedly connected with a cushion block (2215), and the end of each connecting slider (2214) close to the internal thread adjustment block (2216) is rotatably connected to one end of a corresponding threaded rod (2213); each of the internal thread adjustment blocks (2216) is designed as an anti-slip structure, and the outer contour of the internal thread adjustment block (2216) is circular or regular polygonal, and the outer wall is circumferentially engraved with anti-slip patterns.

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