Positioning device for tractor front axle machining

Abstract

The utility model discloses a positioning device for tractor front axle machining, which relates to the technical field of front axle machining and comprises a base, a square fence, a plurality of square support columns and a support table positioned in the middle of the base are arranged on the base, and the square support columns are arranged at equal intervals along the length direction and the width direction of the square fence respectively. The tops of the square supporting columns are jointly connected with a plurality of sliding bearing structures in a sliding mode, each sliding bearing structure is provided with a plurality of fixing structures used for being connected with the square supporting columns in a matched mode, and the top of each sliding bearing structure is provided with a positioning structure used for positioning a workpiece. The positions of the sliding bearing structures are adjusted by sliding the sliding bearing structures among the square supporting columns, the sliding bearing structures are fixed through the fixing structures, disassembly is not needed, operation steps are simplified, efficiency is improved, the positioning structures are used for positioning and clamping workpieces, and stability of the workpieces during machining can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of front axle processing technology, specifically to a positioning device for processing tractor front axles. Background Technology

[0002] The front axle of a tractor is a device that transmits forces in all directions between the chassis and the front wheels, as well as the resulting bending moments and torques. The front axle is often a driven axle, also known as a steering axle, and is generally located at the front of the vehicle. It is connected to the steering system via steering knuckles, enabling the steering force output from the steering gear to be transmitted to the wheels to achieve vehicle steering. When machining the front axle of a tractor, it is necessary to perform positioning.

[0003] Because the front axle has an irregular shape, the clamping and positioning mechanism cannot stably position and clamp the front axle when it is placed at different angles. The existing utility model patent with patent publication number CN221135631U discloses a positioning device for processing tractor front axles. It places the tractor front axle on a workbench, and then fixes multiple positioning bases on the positioning holes around the workbench according to the shape of the front axle to complete the initial positioning. Then, the position of the clamping block is adjusted by the auxiliary structure to fix and clamp the front axle, thereby positioning and clamping the front axle with high stability after clamping.

[0004] However, this utility model also has corresponding problems: when adjusting the position of the positioning base, multiple fixing bolts need to be loosened first, and when adjusting the position of the positioning base, multiple fixing bolts need to be tightened again. The operation is complicated due to the number of operations and it affects the processing efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning device for machining the front axle of a tractor, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution:

[0007] A positioning device for machining a tractor front axle includes a base, on which a square enclosure, multiple square support columns, and a support platform located in the middle of the base are provided. The multiple square support columns are equally spaced along the length and width directions of the square enclosure and are located inside the square enclosure. The tops of the multiple square support columns are slidably connected to multiple sliding bearing structures. Each sliding bearing structure is provided with multiple fixing structures for cooperating and connecting with the square support columns, and the fixing structures are used to fix the sliding bearing structure. The top of each sliding bearing structure is provided with a positioning structure for positioning the workpiece.

[0008] Each of the sliding bearing structures is supported by the top of multiple square support columns, and each of the sliding bearing structures is inserted into the gap between adjacent square support columns in a vertically downward direction, and is fixed by cooperating with the adjacent square support columns through a fixing structure.

[0009] As a preferred embodiment of the present invention, the sliding bearing structure includes a plurality of square sliding columns, and the plurality of square sliding columns slide in the gap between two adjacent square support columns respectively. The top of the plurality of square sliding columns is fixedly connected to a bearing plate, and the fixing structure is set on the outermost plurality of square sliding columns.

[0010] The distance between two adjacent square support columns along the width direction of the square fence is the width of the square sliding column, and the distance between two adjacent square support columns along the length direction of the square fence is the length of the square sliding column.

[0011] As a preferred embodiment of the present utility model, the square support column includes a first square column and a second square column arranged concentrically, and the first square column is vertically arranged on the base, the second square column is fixedly connected to the top of the first square column, and the projection of the first square column on the base is located inside the projection of the second square column on the base.

[0012] The square sliding column includes a third square column and a fourth square column arranged concentrically. The fourth square column is vertically arranged at the bottom of the support plate, and the third square column is fixedly arranged at the bottom of the fourth square column. The projection of the fourth square column on the base is located inside the projection of the third square column on the base.

[0013] As a preferred embodiment of this utility model, the fixing structure includes multiple limiting blocks. An inner cavity is formed inside the third square column. Multiple sliding grooves communicating with the outside of the third square column are formed on the periphery of the inner cavity. The multiple limiting blocks are slidably connected in the corresponding sliding grooves. An elastic element connected to the corresponding limiting block is provided at the bottom of each sliding groove. An adjusting rod is rotatably connected to the top of the inner cavity. An extrusion block is fixedly connected to the bottom of the adjusting rod. Multiple arc-shaped extrusion plates corresponding to the multiple limiting blocks are provided on the periphery of the extrusion block. The top of the adjusting rod passes through the fourth square column and the bearing plate in sequence and is connected to the limiting element. The limiting element is used to limit the position of the adjusting rod after rotation.

[0014] Each of the first square pillars has a limiting groove on its periphery for the insertion of a limiting block.

[0015] In a preferred embodiment of this utility model, the elastic element includes a spring, a reset groove is provided at the bottom of the slide groove, and the spring is located in the reset groove. One end of the spring is connected to the inner side wall of the reset groove, and the other end of the spring is connected to the limiting block.

[0016] As a preferred embodiment of this utility model, the limiting member includes a fixing plate fixed to the top of the adjusting rod, a limiting rod slidably inserted into the fixing plate, and a slot for inserting the limiting rod into the bearing plate.

[0017] In a preferred embodiment of this utility model, the positioning structure includes an adjusting screw mounted on a support plate, a sliding seat threadedly connected to the adjusting screw and slidably connected to the support plate, a lifting screw rotatably connected to the sliding seat, a lifting seat threadedly connected to the lifting screw and slidably connected to the sliding seat, a pressing screw mounted on the lifting seat in a horizontal direction, a top pressure seat threadedly connected to the pressing screw, and the top pressure seat slidably inserted into the lifting seat, with a fixing head for pressing the workpiece at the end of the top pressure seat.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] This invention adjusts the position of multiple sliding bearing structures by sliding them between multiple square support columns and fixing them with a fixing structure, eliminating the need for disassembly, simplifying the operation steps, improving efficiency, and ensuring the stability of the workpiece during processing by positioning and clamping the workpiece with the positioning structure. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] Figure 1 This utility model provides a schematic diagram of the structure of a positioning device for machining a tractor front axle;

[0022] Figure 2 This utility model provides a side sectional view of a positioning device for machining a tractor front axle according to an embodiment of the present invention.

[0023] Figure 3 This utility model provides a partial cross-sectional view of a positioning device for machining a tractor front axle according to an embodiment of the present invention.

[0024] Figure 4A structural schematic diagram of the support plate is provided for an embodiment of this utility model;

[0025] Figure 5 Provided for embodiments of this utility model Figure 1 An enlarged structural diagram of part A shown in the figure;

[0026] Figure 6 Provided for embodiments of this utility model Figure 2 An enlarged structural diagram of part B shown in the figure;

[0027] Figure 7 Provided for embodiments of this utility model Figure 3 The diagram shows an enlarged view of the structure of part C.

[0028] The labels in the diagram represent the following:

[0029] 1. Base; 2. Square enclosure; 3. Square support column; 4. Sliding load-bearing structure; 5. Fixed structure; 6. Positioning structure;

[0030] 301. First square column; 302. Second square column; 401. Square sliding column; 402. Bearing plate; 403. Third square column; 404. Fourth square column; 501. Inner cavity; 502. Slide groove; 503. Elastic element; 504. Limiting block; 505. Adjusting rod; 506. Extrusion block; 507. Limiting element; 508. Limiting groove; 509. Reset groove; 510. Spring; 511. Fixing plate; 512. Limiting rod; 513. Slot; 514. Arc-shaped extrusion plate; 601. Adjusting screw; 602. Sliding seat; 603. Lifting screw; 604. Lifting seat; 605. Extrusion screw; 606. Top pressure seat; 607. Fixed head. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1 to 7As shown, this utility model provides a positioning device for processing the front axle of a tractor, including a base 1. A square enclosure 2, multiple square support columns 3 and a support platform located in the middle of the base 1 are provided on the base 1. The multiple square support columns 3 are equally spaced along the length and width directions of the square enclosure 2 and are located inside the square enclosure 2. The tops of the multiple square support columns 3 are slidably connected to multiple sliding bearing structures 4. Each sliding bearing structure 4 is provided with multiple fixing structures 5 for cooperating and connecting with the square support columns 3, and the fixing structures 5 are used to fix the sliding bearing structure 4. The top of each sliding bearing structure 4 is provided with a positioning structure 6 for positioning the workpiece.

[0033] Each sliding bearing structure 4 is supported by the top of multiple square support columns 3, and each sliding bearing structure 4 is inserted into the gap of the adjacent square support columns 3 in a vertically downward direction, and is fixed by the fixing structure 5 and the adjacent square support columns 3 in cooperation.

[0034] In use, this application directly pushes multiple sliding bearing structures 4 to slide between multiple square support columns 3. After the position of the sliding bearing structure 4 is adjusted, it is fixed by the fixing structure 5, which avoids the need for multiple disassembly and tightening of bolts when adjusting the position, simplifies the operation steps and improves efficiency.

[0035] The workpiece is placed on the support platform and fixed by the positioning structure 6, which is the front axle of the tractor, thus securing the workpiece and ensuring its stability during processing.

[0036] In this embodiment, the square enclosure 2 consists of a U-shaped plate and a baffle. The inner corners of the U-shaped plate are all right angles. The baffle is inserted vertically downward into the opening of the U-shaped plate. The sliding bearing structure 4 can be removed or installed by pulling out or inserting the baffle into the opening of the U-shaped plate.

[0037] Multiple square support columns 3 are equally spaced along the length and width of the square enclosure 2, meaning that the multiple square support columns 3 are arranged in two mutually perpendicular directions on the horizontal plane, so that there is a gap between two adjacent square support columns 3, which allows the sliding bearing structure 4 to move. The multiple square support columns 3 support the sliding bearing structure 4 and the workpiece. Moreover, the square shape of the square support columns 3 makes the space between two adjacent square support columns 3 also square, which can restrict the rotation of the sliding bearing structure 4 in the gap and ensure the stability of the workpiece during the processing.

[0038] The sliding bearing structure 4 includes multiple square sliding columns 401, and the multiple square sliding columns 401 slide in the gap between two adjacent square support columns 3. The top of the multiple square sliding columns 401 is fixedly connected to a bearing plate 402, and the fixing structure 5 is set on the outermost multiple square sliding columns 401.

[0039] The distance between two adjacent square support columns 3 along the width direction of the square fence 2 is the width of the square sliding column 401, and the distance between two adjacent square support columns 3 along the length direction of the square fence 2 is the length of the square sliding column 401.

[0040] Multiple square sliding columns 401 are inserted into the gaps between multiple square support columns 3 and slide to adjust the position of the bearing plate 402. After the position of the bearing plate 402 is adjusted, the square sliding columns 401 are located between two adjacent square support columns 3 and then fixed by the fixing structure 5.

[0041] When the square sliding column 401 is located between two adjacent square support columns 3, it fits against the two opposite outer walls of the two square support columns 3, thereby restricting the rotation of the square sliding column 401 and ensuring the stability of the bearing plate 402 during use.

[0042] The square support column 3 includes a first square column 301 and a second square column 302 arranged concentrically. The first square column 301 is vertically arranged on the base 1, and the second square column 302 is fixedly connected to the top of the first square column 301. The projection of the first square column 301 on the base 1 is located inside the projection of the second square column 302 on the base 1.

[0043] The square sliding column 401 includes a third square column 403 and a fourth square column 404 arranged concentrically. The fourth square column 404 is vertically arranged at the bottom of the support plate 402. The third square column 403 is fixedly arranged at the bottom of the fourth square column 404. The projection of the fourth square column 404 on the base 1 is located inside the projection of the third square column 403 on the base 1.

[0044] That is, the size of the first square column 301 is smaller than the size of the second square column 302. The square support column 3 is a square column that is thicker at the top and thinner at the bottom. The size of the third square column 403 is larger than the size of the fourth square column 404. That is, the square sliding column 401 is a column that is thinner at the top and thicker at the bottom. The outer wall of the square sliding column 401 fits against the two opposite side walls of the two adjacent square support columns 3, so that the square sliding column 401 can cooperate with the square support column 3. The top of the third square column 403 can abut against the top of the second square column 302, thereby locking the square sliding column 401. When the square sliding column 401 is fixed, it can be restricted to move vertically upward by the second square column 302, which further ensures the stability of the bearing plate 402 during use.

[0045] The fixed structure 5 includes multiple limiting blocks 504. A cavity 501 is formed inside the third square column 403. Multiple grooves 502 communicating with the outside of the third square column 403 are formed on the periphery of the cavity 501. The multiple limiting blocks 504 are slidably connected in the corresponding grooves 502. Each groove 502 has an elastic element 503 connected to the corresponding limiting block 504 at its bottom. An adjusting rod 505 is rotatably connected to the top of the cavity 501. A pressing block 506 is fixedly connected to the bottom of the adjusting rod 505. Multiple arc-shaped pressing plates 514 corresponding to the multiple limiting blocks 504 are formed on the periphery of the pressing block 506. The top of the adjusting rod 505 passes through the fourth square column 404 and the bearing plate 402 in sequence and is connected to a limiting element 507. The limiting element 507 is used to limit the position of the adjusting rod 505 after rotation.

[0046] Each of the first square pillars 301 has a limiting groove 508 on its periphery for the insertion of the limiting block 504.

[0047] After the position of the bearing plate 402 is adjusted, the square sliding column 401 is located between two adjacent square support columns 3. At this time, rotating the adjusting rod 505 drives the pressing block 506 to rotate, so that multiple arc-shaped pressing blocks 514 rotate synchronously to contact multiple limiting blocks 504 at the same time, and press the multiple limiting blocks 504 to move along the sliding groove 502 towards the outside of the third square column 403. The corresponding elastic element 503 is compressed. After the multiple limiting blocks 504 move to the outside of the third square column 403, they are inserted into the corresponding limiting grooves 508 respectively, and the position of the adjusting rod 505 is restricted by the limiting element 507 to prevent the adjusting rod 505 from reversing under the elastic force of the elastic element 503, thereby restricting the movement of the third square block 403. By fixing the position of the third square column 403 through multiple fixing structures 5, the position of the bearing plate 402 is fixed, ensuring the stability of the bearing plate 402 during use.

[0048] The elastic element 503 includes a spring 510. The inner bottom of the slide groove 502 is provided with a reset groove 509, and the spring 510 is located in the reset groove 509. One end of the spring 510 is connected to the inner side wall of the reset groove 509, and the other end of the spring 510 is connected to the limiting block 504.

[0049] When the limiting block 504 moves outward to the third-dimensional column 403, the spring 510 is compressed, and the elastic force generated by the compressed spring 510 is used to drive the limiting block 504 to reset.

[0050] The limiting component 507 includes a fixing plate 511 fixed to the top of the adjusting rod 505, a limiting rod 512 slidably inserted on the fixing plate 511, and a slot 513 for the limiting rod 512 to be inserted into the bearing plate 402.

[0051] By inserting the limiting rod 512 into the slot 513 to restrict the rotation of the fixing plate 511, the adjusting rod 505 is restricted from rotating in the opposite direction under the elastic force of the spring 510.

[0052] The positioning structure 6 includes an adjusting screw 601 disposed on the support plate 402. A sliding seat 602 that is slidably connected to the support plate 402 is threaded onto the adjusting screw 601. A lifting screw 603 is rotatably connected to the sliding seat 602. A lifting seat 604 that is slidably connected to the sliding seat 602 is threaded onto the lifting screw 603. A pressing screw 605 is disposed on the lifting seat 604 in a horizontal direction. A top pressure seat 606 is threaded onto the pressing screw 605 and is slidably inserted into the lifting seat 604. A fixing head 607 for pressing the workpiece is disposed at the end of the top pressure seat 606.

[0053] The adjusting screw 601 is used to adjust the sliding seat 602 to slide along the bearing plate 402, the lifting screw 603 adjusts the height of the lifting seat 604, and the pressing screw 605 is used to drive the top pressing seat 606 to move the fixed head 607 closer to the workpiece, thereby adjusting the contact position of the fixed head 607 on the workpiece when it presses and fixes the workpiece to adapt to the shape of the workpiece.

[0054] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A positioning device for processing a tractor front axle, characterized by, The utility model provides a square enclosure is provided with square support column (3) and a support table in the middle of base (1) on the base (1), a plurality of square support column (3) is respectively along the length direction and width direction of square enclosure (2) equidistance is arranged and is located the inboard of square enclosure (2), and the top of a plurality of square support column (3) is slidably connected with a plurality of sliding bearing structure (4), each sliding bearing structure (4) is provided with a plurality of fixed structure (5) for cooperating with square support column (3) connection, and the fixed structure (5) is used for fixing sliding bearing structure (4), and the top of each sliding bearing structure (4) is provided with the positioning structure (6) for positioning workpiece, Wherein, each sliding bearing structure (4) is supported by the top of a plurality of square support column (3), and each sliding bearing structure (4) is inserted into the gap of adjacent square support column (3) along the vertically downward direction, and is fixed by the fixed structure (5) and the mutual cooperation connection of adjacent square support column (3).

2. The positioning device for processing tractor front axle according to claim 1, characterized in that, The sliding bearing structure (4) includes a plurality of square sliding columns (401), and a plurality of square sliding columns (401) are slidably arranged in the gap between adjacent two square support columns (3), and the top of a plurality of square sliding columns (401) is fixedly connected with a bearing plate (402), and the fixed structure (5) is arranged on the outermost plurality of square sliding columns (401). The interval between adjacent two square support columns (3) along the width direction of the square enclosure (2) is the width of the square sliding column (401), and the interval between adjacent two square support columns (3) along the length direction of the square enclosure (2) is the length of the square sliding column (401).

3. The positioning device for processing tractor front axle according to claim 2, characterized in that, The square support column (3) includes a first square column (301) and a second square column (302) arranged concentrically, the first square column (301) is arranged vertically on the base (1), the second square column (302) is fixedly connected with the top of the first square column (301), and the projection of the first square column (301) on the base (1) is located inside the projection of the second square column (302) on the base (1). The square sliding column (401) includes a third square column (403) and a fourth square column (404) arranged concentrically, the fourth square column (404) is arranged vertically at the bottom of the bearing plate (402), the third square column (403) is fixedly arranged at the bottom of the fourth square column (404), and the projection of the fourth square column (404) on the base (1) is located inside the projection of the third square column (403) on the base (1).

4. The positioning device for processing tractor front axle according to claim 3, characterized in that, The fixing structure (5) comprises a plurality of limiting blocks (504), an inner cavity (501) is formed in the third square column (403), a plurality of sliding grooves (502) in communication with the outside of the third square column (403) are formed in the circumferential side of the inner cavity (501), a plurality of limiting blocks (504) are respectively and slidably connected in the corresponding sliding grooves (502), an elastic member (503) connected with the corresponding limiting block (504) is arranged at the inner bottom of each sliding groove (502), an adjusting rod (505) is rotatably connected to the inner top of the inner cavity (501), an extrusion block (506) is fixedly connected to the bottom of the adjusting rod (505), a plurality of arc-shaped extrusion plates (514) corresponding to the plurality of limiting blocks (504) are arranged on the circumferential side of the extrusion block (506), and a limiting member (507) is connected to the top of the adjusting rod (505) in sequence after penetrating through the fourth square column (404) and the bearing plate (402), and the limiting member (507) is used for limiting the position of the adjusting rod (505) after rotation. A limiting groove (508) for inserting the limiting block (504) is formed in the circumferential side of each first square column (301).

5. The positioning device for processing tractor front axle according to claim 4, characterized in that, The elastic member (503) comprises a spring (510), a reset groove (509) is formed in the inner bottom of the sliding groove (502), and the spring (510) is located in the reset groove (509), one end of the spring (510) is connected with the inner side wall of the reset groove (509), and the other end of the spring (510) is connected with the limiting block (504).

6. The positioning device for processing tractor front axle according to claim 4, characterized in that, The limiting member (507) comprises a fixed plate (511) fixed to the top of the adjusting rod (505), a limiting rod (512) is slidably inserted on the fixed plate (511), and an insertion groove (513) for inserting the limiting rod (512) is formed in the bearing plate (402).

7. The positioning device for processing tractor front axle according to claim 2, characterized in that, The positioning structure (6) comprises an adjusting screw (601) arranged on the bearing plate (402), a sliding seat (602) slidably connected with the bearing plate (402) is threadedly connected to the adjusting screw (601), a lifting screw (603) is rotatably connected to the sliding seat (602), a lifting seat (604) slidably connected with the sliding seat (602) is threadedly connected to the lifting screw (603), an extrusion screw (605) is arranged on the lifting seat (604) in the horizontal direction, a top pressing seat (606) is threadedly connected to the extrusion screw (605), the top pressing seat (606) is slidably inserted on the lifting seat (604), and a fixing head (607) for extruding a workpiece is arranged at the end of the top pressing seat (606).

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