Positioning device for rear axle housing machining

Abstract

The utility model provides a positioning device for rear axle housing processing, which comprises an operating table, a lifting mechanism, a positioning mechanism and an axle housing, support plates are fixedly arranged at two ends of the top of the operating table, the lifting mechanism is fixedly arranged in the middle of the top of the operating table, and the positioning mechanism is fixedly arranged at the top of the lifting mechanism. The positioning mechanism comprises a base fixedly arranged at the top of the lifting mechanism and a lower supporting ring fixedly arranged at the top of the base, an upper supporting ring is fixedly arranged at the top of the lower supporting ring, and the axle housing is fixedly arranged on the supporting plate. According to the positioning device for rear axle housing machining, through the combined design of the lifting mechanism and the positioning mechanism, it is ensured that the positioning mechanism can move upwards, a lower supporting ring of the positioning mechanism abuts against the bottom of an axle housing lute opening to bear an axle housing, and an upper supporting ring is located at the inner ring position of the bottom of the axle housing lute opening; and the axle housing is positioned, the stability during axle housing machining is improved, and then the machining precision of the axle housing is improved.

Description

Technical Field

[0001] This utility model relates to the field of axle housing processing technology, and in particular to a positioning device for processing rear axle housings. Background Technology

[0002] The axle housing is a core component of the automotive transmission system, housing precision parts such as the final drive, differential, and half-shafts. Therefore, if the axle housing is not accurately positioned during machining or if it wobbles during the machining process, it will cause deviations in key dimensions such as the bracket seat hole and center hole, affecting the accuracy of axle housing assembly, resulting in substandard quality, or even damage to the axle housing and rendering it scrap. Therefore, it is necessary to position the axle housing during machining to improve the accuracy of the machining process. Utility Model Content

[0003] The purpose of this invention is to provide a positioning device for rear axle housing processing, so as to improve the stability and thus the accuracy of the axle housing processing.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A positioning device for machining a rear axle housing, comprising:

[0006] The operating platform has support plates fixedly installed at both ends of its top; a lifting mechanism is fixedly installed at the middle position of the top of the operating platform; a positioning mechanism is fixedly installed on the top of the lifting mechanism, the positioning mechanism includes a base installed on the top of the lifting mechanism and a lower support ring fixedly installed on the top of the base, and an upper support ring is fixedly installed on the top of the lower support ring; and a bridge housing is fixedly installed on the support plate.

[0007] Furthermore, the upper support ring has equally spaced limiting grooves, and a pressing rod is provided in the limiting groove. A spring is provided in the limiting groove. One end of the pressing rod near the inner ring of the upper support ring is inclined, and the other end of the pressing rod is curved.

[0008] Furthermore, a limiting slide bar is provided at the bottom corner of the base, and a compression spring is provided on the limiting slide bar. A wedge-shaped groove is provided at the bottom of the base.

[0009] Furthermore, the positioning mechanism also includes a first cylinder fixedly disposed on the top of the lifting mechanism, and a pressing block is fixedly disposed on the output end of the first cylinder.

[0010] Furthermore, the top of the operating table is provided with four limiting slide grooves, the limiting slide rod is slidably disposed on the limiting slide grooves, and the top of the operating table is provided with two guide grooves in the horizontal direction.

[0011] Furthermore, the lifting mechanism includes a second cylinder fixedly mounted on the top of the operating table and a wedge block fixedly mounted on the output end of the second cylinder. The second cylinder and the wedge block are fixedly connected by a connecting frame. A slider is fixedly mounted on the bottom of the wedge block, and the slider is slidably mounted on the guide groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The positioning device for rear axle housing processing described in this utility model, through the combined design of a lifting mechanism and a positioning mechanism, ensures that the positioning mechanism can move upward, so that the lower support ring of the positioning mechanism presses against the bottom of the axle housing opening to support the axle housing, while the upper support ring is located at the inner ring position at the bottom of the axle housing opening to position the axle housing, thereby improving the stability of the axle housing during processing and thus improving the processing accuracy of the axle housing. Attached Figure Description

[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0015] Figure 1 This is a perspective view of a positioning device for machining a rear axle housing according to an embodiment of the present invention, and a partial sectional view of the operating table.

[0016] Figure 2 As described in the embodiments of this utility model Figure 1 Enlarged view of point I in the middle;

[0017] Figure 3 This is a top view of a positioning device for machining a rear axle housing according to an embodiment of the present invention;

[0018] Figure 4 This is an overall structural diagram of the positioning mechanism described in an embodiment of the present utility model;

[0019] Figure 5 This is a cross-sectional view of the upper support ring as described in an embodiment of the present utility model;

[0020] Figure 6 The diagram shows the lifting mechanism structure and a partial sectional view of the operating table as described in the embodiment of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Operating table; 101. Limiting slide groove; 102. Guide groove; 2. Support plate; 3. Lifting mechanism; 301. Second cylinder; 302. Wedge block; 303. Connecting frame; 304. Slider; 4. Positioning mechanism; 401. Base; 4011. Limiting slide rod; 4012. Compression spring; 4013. Wedge groove; 402. Lower support ring; 403. Upper support ring; 4031. Limiting groove; 4032. Extrusion rod; 4033. Spring; 404. First cylinder; 405. Extrusion block; 5. Bridge housing. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "back" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] This embodiment relates to a positioning device for machining a rear axle housing. In terms of overall structure, as follows... Figure 1 and Figure 2 As shown, it includes an operating platform 1, a lifting mechanism 3, a positioning mechanism 4, and a bridge housing 5.

[0026] Among them, support plates 2 are fixedly installed at both ends of the top of the operating platform 1, lifting mechanism 3 is fixedly installed at the middle position of the top of the operating platform 1, positioning mechanism 4 is fixedly installed on the top of lifting mechanism 3, positioning mechanism 4 includes a base 401 installed on the top of lifting mechanism 3, and a lower support ring 402 fixedly installed on the top of base 401. An upper support ring 403 is fixedly installed on the top of lower support ring 402, and bridge shell 5 is fixedly installed on support plate 2.

[0027] It is worth mentioning that the support plate 2 is fixedly installed on both sides of the top of the operating table 1, such as... Figure 1As shown, the lifting mechanism 3 is fixedly installed at the top center of the operating table 1 to fix the half-shaft sleeves at both ends of the axle housing 5. It provides power for the positioning mechanism 4 to move upward. The positioning mechanism 4 is installed between the axle housing 5 and the lifting mechanism 3 to fix the axle housing 5 during processing, making the axle housing 5 more stable and improving the precision of the axle housing 5 during processing. The base 401 is installed on top of the lifting mechanism 3. Under the squeezing action of the lifting mechanism 3, the base 401 drives the positioning mechanism 4 to move upward. The lower support ring 402 is located on top of the base 401, and the lower support ring 402 is connected to the base 401 through multiple support columns. The lower support ring 402 is located at the bottom of the axle housing 5, and the diameter of the lower support ring 402 is larger than the inner diameter of the axle housing 5's opening. It is used to support the bottom of the axle housing 5's opening. The upper support ring 403 is fixedly installed on top of the lower support ring 402 to press and position the inner ring at the bottom of the axle housing 5's opening.

[0028] As a preferred option, such as Figure 5 As shown, in this embodiment, the upper support ring 403 has equal-spaced limiting grooves 4031, a pressing rod 4032 is provided in the limiting groove 4031, and a spring 4033 is provided in the limiting groove 4031. One end of the pressing rod 4032 near the inner ring of the upper support ring 403 is inclined, and the other end of the pressing rod 4032 is curved.

[0029] It should be noted that, as Figure 5 As shown, multiple limiting grooves 4031 are formed through the upper support ring 403. The multiple limiting grooves 4031 are arranged at equal intervals for the installation of the pressing rod 4032 and the spring 4033. The side of the pressing rod 4032 near the inner ring of the upper support ring 403 is a convex inclined surface, and the side of the pressing rod 4032 near the outer ring of the upper support ring 403 is a curved surface, which is adapted to the inner ring of the bridge housing 5 pipa mouth, so that the pressing rod 4032 is pressed against the pipa mouth of the bridge housing 5 with more uniform force.

[0030] As a preferred option, it remains as follows Figure 1 and Figure 4 As shown, in this embodiment, a limiting slide bar 4011 is provided at the bottom corner of the base 401, a compression spring 4012 is provided on the limiting slide bar 4011, and a wedge groove 4013 is provided at the bottom of the base 401.

[0031] Specifically, the limiting slide bar 4011 is fixedly installed at the corner of the bottom of the base 401 to keep the base 401 stable when moving up and down. The compression spring 4012 is sleeved on the outside of the limiting slide bar 4011, with its top fixedly installed on the base 401 and its bottom fixedly installed on the operating table 1, so that the base 401 moves downward to return to its initial state when it is not subjected to an upward external force. The wedge groove 4013 is opened at the bottom of the base 401. The lifting mechanism 3 squeezes the wedge groove 4013 to make the base 401 move upward, thereby making the positioning mechanism 4 move upward.

[0032] As a preferred option, it remains as follows Figure 2 and Figure 3 As shown, in this embodiment, the positioning mechanism 4 also includes a first cylinder 404 fixedly disposed on the top of the lifting mechanism 3, and a pressing block 405 is fixedly disposed on the output end of the first cylinder 404.

[0033] Specifically, the first cylinder 404 is located at the top of the base 401 and is used to drive the extrusion block 405. The extrusion block 405 is a cuboid located at the bottom of the extrusion rod 4032 near the inner ring of the upper support ring 403. It is used to drive the extrusion rod 4032 so that the curved end of the extrusion rod 4032 presses against the inner ring of the bridge housing 5, thereby fixing the bridge housing 5.

[0034] As a preferred option, it remains as follows Figure 1 and Figure 6 As shown, in this embodiment, the top of the operating table 1 is provided with four limiting slide grooves 101, the limiting slide rod 4011 is slidably disposed on the limiting slide grooves 101, and the top of the operating table 1 is provided with two guide grooves 102 in the horizontal direction.

[0035] Specifically, the limiting slide groove 101 is opened on the top of the operating table 1, and the limiting slide rod 4011 is slidably installed in the limiting slide groove 101, so that the base 401 moves smoothly up and down under the action of the limiting slide groove 101. Two guide grooves 102 are opened laterally in the middle of the top of the operating table 1 and are located between the front and rear sets of limiting slide grooves 101, for the sliding installation of the lifting mechanism 3.

[0036] As a preferred option, it remains as follows Figure 1 and Figure 6 As shown, in this embodiment, the lifting mechanism 3 includes a second cylinder 301 fixedly installed on the top of the operating table 1 and a wedge block 302 fixedly installed at the output end of the second cylinder 301. The second cylinder 301 and the wedge block 302 are fixedly connected by a connecting frame 303. A slider 304 is fixedly installed at the bottom of the wedge block 302, and the slider 304 is slidably installed on the guide groove 102.

[0037] Specifically, the second cylinder 301 is fixedly installed on the top of the operating table 1 on one side of the positioning mechanism 4, providing power for the wedge block 302 to move on the operating table 1. The wedge block 302 is slidably installed on the operating table 1, located on the top of the base 401, for driving the base 401 to move up and down. The slider 304 is fixedly installed on the bottom of the wedge block 302, and the slider 304 is slidably installed on the guide groove 102 to assist the stability of the wedge block 302 when moving left and right.

[0038] Working principle: Before processing the axle housing 5, the half-shaft sleeves at both ends of the axle housing 5 are first fixedly installed on the support plate 2. The second cylinder 301 is started. Under the driving action of the second cylinder 301, the wedge block 302 moves away from the second cylinder 301. At the same time, the wedge block 302 presses the wedge groove 4013 at the bottom of the base 401. Under the pressing action of the wedge block 302, the base 401 moves upward, thereby causing the positioning mechanism 4 to move upward as a whole. At this time, the compression spring 4012 is stretched. When the top of the lower support ring 402 presses against the bottom of the axle housing 5, the second cylinder 301 stops working. At the same time, the first cylinder 404 is started. Under the driving action of the first cylinder 404, the pressing block 405 moves away from the first cylinder 404. At the same time, the pressing block 405 presses the inclined pressing rod 4032. At one end, the extrusion rod 4032 moves upward in the limiting groove 403 to the outer ring of the support ring 403, so that the curved end of the extrusion rod 4032 presses against the inner ring of the bridge housing 5, positioning the bridge housing 5. At this time, the spring 4033 is compressed. After the bridge housing 5 is processed, the piston rod of the first cylinder 404 retracts back to the initial state. Under the action of the spring 4033, the extrusion rod 4032 returns to the initial state, so that the curved end of the extrusion rod 4032 separates from the inner ring of the bridge housing 5. At this time, the piston rod of the second cylinder 301 retracts back to the initial state. Under the action of the downward pulling force of the compression spring 4012, the positioning mechanism 4 moves downward to return to the initial state. At this time, one side of the bridge housing 5 is processed. The bridge housing 5 is flipped over or replaced with the next bridge housing 5 through other devices, and the bridge housing 5 is positioned in the same way as above.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning device for rear axle housing machining, characterized by, The utility model relates to a kind of positioning devices for rear axle housing processing, including: Operation platform (1), support plate (2) is fixedly arranged at the top of the operation platform (1) both ends; Lifting mechanism (3) is fixedly arranged in the top middle position of the operation platform (1); Positioning mechanism (4) is fixedly arranged in the top of the lifting mechanism (3), the positioning mechanism (4) includes the base (401) being arranged in the top of the lifting mechanism (3), and the lower support ring (402) being fixedly arranged in the top of the base (401), the upper support ring (403) is fixedly arranged in the top of the lower support ring (402); Axle housing (5) is fixedly arranged on the support plate (2).

2. The positioning device for rear axle housing processing according to claim 1, wherein: The upper support ring (403) is provided with a limiting groove (4031) at equal intervals, the limiting groove (4031) is provided with an extrusion rod (4032), the limiting groove (4031) is provided with a spring (4033), one end of the extrusion rod (4032) close to the inner ring of the upper support ring (403) is a bevel, the other end of the extrusion rod (4032) is a curved surface.

3. The positioning device for rear axle housing processing according to claim 1, wherein: The base (401) is provided with a limiting sliding rod (4011) at the corner of the bottom, the limiting sliding rod (4011) is provided with a compression spring (4012), and the bottom of the base (401) is provided with a wedge-shaped groove (4013).

4. The positioning device for rear axle housing processing according to claim 1, wherein: The positioning mechanism (4) further comprises a first air cylinder (404) fixedly arranged on the top of the lifting mechanism (3), and the output end of the first air cylinder (404) is fixedly provided with an extrusion block (405).

5. The positioning device for rear axle housing processing according to claim 3, wherein: The top of the operation platform (1) is provided with four limiting sliding grooves (101), the limiting sliding rod (4011) is slidingly arranged in the limiting sliding groove (101), and the top of the operation platform (1) is transversely provided with two guide grooves (102).

6. The positioning device for rear axle housing processing according to claim 5, wherein: The lifting mechanism (3) comprises a second air cylinder (301) fixedly arranged on the top of the operation platform (1), and a wedge-shaped block (302) fixedly arranged on the output end of the second air cylinder (301), the second air cylinder (301) and the wedge-shaped block (302) are fixedly connected through a connecting frame (303), the bottom of the wedge-shaped block (302) is fixedly provided with a sliding block (304), and the sliding block (304) is slidingly arranged in the guide groove (102).

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