Axle box horizontal sequence adding work fixture

Abstract

An axle box horizontal sequence adding work fixture belongs to the technical field of axle box work fixtures and comprises a base, a lifting mechanism, a pressing mechanism and an inner positioning mechanism are mounted on the upper surface of the base, the lifting mechanism is arranged in a triangular shape to lift the lower surface of an axle box, and the pressing mechanism is arranged in a triangular shape to press the upper surface of the axle box. According to the axle box clamping device, the requirement that the four sides of the axle box face towards the working scene can be met, secondary clamping operation of the axle box is avoided, the machining period can be shortened, and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of axle box fixtures, and in particular relates to a horizontal axle box fixture. Background Art

[0002] The axle box plays a crucial role in high-speed trains and intercity subway vehicles. It transfers the vehicle's weight and load to the wheels, lubricates the axle journals, reduces friction, and lowers running resistance, ensuring efficient and stable passenger vehicle operation.

[0003] The purpose of the fixture is to process the axle box on the CNC horizontal machining center, use the blank to locate, accurately determine the center of the workpiece and the angular positioning and clamping effect, use the horizontal machining center to rotate four angles respectively to process four processing surfaces, complete the workpiece processing in one clamping, and produce qualified products.

[0004] The traditional process involves creating four fixtures in four separate clamping steps to process different surfaces, which presents several challenges. First, fixture production is time-consuming and labor-intensive, requiring significant manpower and resources. Second, multiple clamping steps are complex and error-prone, impacting machining accuracy and product quality. Furthermore, frequent clamping delays machining cycles and reduces efficiency, while uneven wear on different fixtures impacts machining consistency and stability. To address these challenges, a horizontal axle box mounting fixture was developed to address these challenges. Utility Model Content

[0005] In view of the problem that in the prior art, four different sets of clamps are needed to process the four surfaces of the axle box, and multiple clamping operations are required, which affects the processing cycle, efficiency and product stability. The utility model provides a horizontal processing fixture for the axle box, which uses a lifting mechanism and a clamping mechanism to achieve the clamping and fixation of the horizontal processing of the axle box. At the same time, the internal positioning mechanism can clamp the axle box inside and outside to ensure the all-round fixing effect of the axle box. After the axle box is clamped by this fixture, the four processing surfaces of the front, back, left and right of the axle box are all optional. One fixture can meet the needs of the four-sided working scene of the axle box, avoiding the multiple clamping operations of the axle box, shortening the processing cycle and improving production efficiency. It effectively solves the problem that in the prior art, four different sets of clamps are needed to process the four surfaces of the axle box, and multiple clamping operations are required, which affects the processing cycle, efficiency and product stability. The specific technical solution is as follows:

[0006] A horizontal machining fixture for an axle box comprises a base, the upper surface of the base being equipped with a lifting mechanism, a clamping mechanism and an internal positioning mechanism. The lifting mechanism is arranged in a triangular shape to lift the lower surface of the axle box, and the clamping mechanism is arranged in a triangular shape to clamp the upper surface of the axle box, and the clamping point of the clamping mechanism is located directly above the lifting point of the lifting mechanism.

[0007] In the above technical solution, the lifting mechanism includes a contoured positioning column and two support columns, the contoured positioning column and the support columns are fixedly installed on the base in a triangular shape, and the upper surfaces of the contoured positioning column and the support columns are screwed with external hexagonal bolts A;

[0008] In the above technical solution, the clamping mechanism includes two full-thread studs A and a full-thread stud B. The two full-thread studs A are fixedly installed on the upper surface of the base relative to each other in the front and rear, and the full-thread stud B is screwed on the upper surface of the contoured positioning column. The outer surfaces of the full-thread studs A and the full-thread studs B are both sleeved with pressure plates. The outer surfaces of the full-thread studs A and the full-thread studs B are both screwed with nuts. The nuts are located above the corresponding pressure plates, and the pressure plates are located above the corresponding external hexagonal bolts A.

[0009] In the above technical solution, the inner positioning mechanism includes a positioning stop column and two vertical plates, the positioning stop column and the vertical plates are fixedly mounted on the upper surface of the base, the left vertical plate is located at the front end of the positioning stop column, and the right vertical plate is located on the left side of the contoured positioning column, and the front surface of the left vertical plate and the left surface of the right vertical plate are both threaded with auxiliary top screws;

[0010] In the above technical solution, two support blocks are fixedly installed on the upper surface of the base, and the two support blocks correspond to the outer sides of the fully threaded studs A respectively, and the upper surfaces of the support blocks are screwed with hexagonal bolts B, which are used to support the pressure plates at the corresponding positions.

[0011] Compared with the prior art, the utility model of a horizontal axle box adding fixture has the following beneficial effects:

[0012] This utility model utilizes a lifting mechanism and a clamping mechanism to achieve the clamping and fixing of the horizontal axle box. At the same time, the internal positioning mechanism can clamp the axle box from both inside and outside, ensuring the axle box is fixed in all directions. After the axle box is clamped by this fixture, the four machining surfaces of the axle box can be selected. One fixture can meet the needs of the axle box facing all four directions in the work scene, avoiding the need for multiple clamping operations of the axle box, shortening the processing cycle and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional top view structural diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the two-dimensional main structure of the utility model.

[0015] Figure 3 It is a two-dimensional left-view structural schematic diagram of the utility model.

[0016] Figure 4 It is a two-dimensional top view structural schematic diagram of the utility model.

[0017] Figure 5 This is a schematic diagram of the three-dimensional main structure of the utility model when in use.

[0018] Figure 6 It is a two-dimensional top view structural diagram of the utility model when in use.

[0019] Figure 1-6 Among them: 1. Base; 2. Lifting mechanism; 21. Contoured positioning column; 22. Support column; 23. Hexagonal bolt A; 3. Clamping mechanism; 31. Full-thread stud A; 32. Full-thread stud B; 33. Pressing plate; 34. Nut; 4. Internal positioning mechanism; 41. Positioning stop column; 42. Vertical plate; 43. Auxiliary top screw; 5. Support block; 51. Hexagonal bolt B. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In this embodiment, front, back, left, right, up and down are represented by Figure 1 Describes the datum. Figures 1-6 , the utility model provides a technical solution:

[0022] A horizontal axle box fixture includes a base 1. A lifting mechanism 2, a pressing mechanism 3, and an inner positioning mechanism 4 are mounted on the upper surface of the base 1. The lifting mechanism 2 is arranged in a triangular shape to lift the lower surface of the axle box. The pressing mechanism 3 is arranged in a triangular shape to press the upper surface of the axle box. The pressing point of the pressing mechanism 3 is located directly above the lifting point of the lifting mechanism 2.

[0023] It should be noted that the lifting mechanism 2 includes a contoured positioning column 21 and two support columns 22. The contoured positioning column 21 and the support columns 22 are fixedly installed on the base 1 in a triangular shape, and the upper surfaces of the contoured positioning column 21 and the support columns 22 are screwed with external hexagonal bolts A23. Figure 5 As shown, three hexagonal bolts A23 are used to lift the lower surface of the axle box. During actual operation, the height of the hexagonal bolts A23 can be rotated to adjust the corresponding lifting height.

[0024] like Figure 1As shown, the clamping mechanism 3 includes two full-thread studs A31 and a full-thread stud B32. The two full-thread studs A31 are fixedly mounted on the upper surface of the base 1 relative to each other in the front and rear, and the full-thread stud B32 is screwed on the upper surface of the contoured positioning column 21. The outer surfaces of the full-thread studs A31 and the full-thread studs B32 are both sleeved with a pressure plate 33. The outer surfaces of the full-thread studs A31 and the full-thread studs B32 are both screwed with a nut 34. The nut 34 is located above the corresponding pressure plate 33, and the pressure plate 33 is located above the corresponding external hexagonal bolt A23, as shown in FIG. Figure 3 As shown, when the axle box is placed horizontally on the three hexagonal bolts A23, the pressure plate 33 at the corresponding position can be locked using the nut 34, and the axle box can be clamped and fixed by the cooperation of the pressure plate 33 and the hexagonal bolts A23.

[0025] like Figure 1 As shown, the inner positioning mechanism 4 includes a positioning stop column 41 and two vertical plates 42. The positioning stop column 41 and the vertical plates 42 are fixedly mounted on the upper surface of the base 1. The left vertical plate 42 is located at the front end of the positioning stop column 41, and the right vertical plate 42 is located on the left side of the contoured positioning column 21. The front surface of the left vertical plate 42 and the left surface of the right vertical plate 42 are both threaded with auxiliary top screws 43, as shown in FIG. Figure 6 As shown, before the axle box is completely clamped, the auxiliary top screws 43 at the corresponding positions need to be used to cooperate with the positioning stop columns 41 and the contoured positioning columns 21 to ensure the angle of the axle box after being clamped, thereby ensuring the quality of the four sides after processing.

[0026] Finally, in order to ensure the stability of the two left pressure plates 33, Figure 3 and Figure 5 As shown, two support blocks 5 are fixedly installed on the upper surface of the base 1. The two support blocks 5 correspond to the outer sides of the fully threaded studs A31 respectively, and the upper surfaces of the support blocks 5 are screwed with external hexagonal bolts B51. The external hexagonal bolts B51 are used to lift and support the pressure plate 33 at the corresponding position. By rotating the external hexagonal bolts B51 upward, the external hexagonal bolts B51 can be used to support the outer end of the corresponding pressure plate 33, thereby ensuring the stability of the pressure plate 33 when pressing the axle box.

[0027] When in use, place the axle box horizontally on the three hexagonal bolts A23, and make the auxiliary top screw 43 located in the sleeve of the axle box. Then, press the right end of the axle box against the left side of the contour positioning column 21, and use the two auxiliary top screws 43 to clamp the axle box between the contour positioning column 21 and the positioning stop column 41. After clamping, the shaft cannot move in the front, back, left and right directions. Finally, tighten the nut 34 to make the pressure plate 33 fit the upper surface of the axle box to limit it in the up and down directions. Compared with the fixture in traditional processes, this fixture can meet the processing scenarios where the axle box faces all four sides, avoid the secondary clamping operation of the axle box, shorten the processing cycle, and improve production efficiency.

Claims

1. A horizontal axle box fixture, comprising a base (1), characterized in that: The upper surface of the base (1) is equipped with a lifting mechanism (2), a pressing mechanism (3) and an inner positioning mechanism (4); the lifting mechanism (2) is arranged in a triangular shape to lift the lower surface of the axle box; the pressing mechanism (3) is arranged in a triangular shape to press the upper surface of the axle box; and the pressing point of the pressing mechanism (3) is located directly above the lifting point of the lifting mechanism (2).

2. The axle box horizontal processing fixture according to claim 1 is characterized in that: The lifting mechanism (2) comprises a contoured positioning column (21) and two support columns (22). The contoured positioning column (21) and the support columns (22) are fixedly mounted on the base (1) in a triangular distribution, and the upper surfaces of the contoured positioning column (21) and the support columns (22) are both screwed with external hexagonal bolts A (23).

3. The axle box horizontal processing fixture according to claim 2 is characterized in that: The clamping mechanism (3) comprises two fully threaded studs A (31) and a fully threaded stud B (32), wherein the two fully threaded studs A (31) are fixedly mounted on the upper surface of the base (1) in a front-to-rear relative manner, and the fully threaded stud B (32) is screwed onto the upper surface of the contoured positioning column (21), and the outer surfaces of the fully threaded studs A (31) and the fully threaded stud B (32) are both sleeved with a pressure plate (33), and the outer surfaces of the fully threaded studs A (31) and the fully threaded stud B (32) are both screwed onto a nut (34), and the nut (34) is located above the corresponding pressure plate (33), and the pressure plate (33) is located above the corresponding external hexagonal bolt A (23).

4. The axle box horizontal processing fixture according to claim 3 is characterized in that: The inner positioning mechanism (4) comprises a positioning stop column (41) and two vertical plates (42), the positioning stop column (41) and the vertical plates (42) are both fixedly mounted on the upper surface of the base (1), the left vertical plate (42) is located at the front end of the positioning stop column (41), and the right vertical plate (42) is located on the left side of the contoured positioning column (21), and the front surface of the left vertical plate (42) and the left surface of the right vertical plate (42) are both threadedly mounted with auxiliary top screws (43).

5. The axle box horizontal processing fixture according to claim 4 is characterized in that: Two support blocks (5) are fixedly mounted on the upper surface of the base (1), and the two support blocks (5) are respectively located on the outer sides of the fully threaded studs A (31), and the upper surfaces of the support blocks (5) are both screwed with external hexagonal bolts B (51), and the external hexagonal bolts B (51) are used to lift and support the pressure plate (33) at the corresponding position.

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