Milling positioning device for outer tubular column casing of steering gear

Abstract

The utility model provides a milling positioning device for an outer tubular column casing of a steering gear, which relates to the technical field of steering gear processing, comprises a processing table body, and is characterized in that a milling cutter is arranged at the top of the processing table body, a positioning component is arranged at the bottom of the milling cutter, and the positioning component comprises a sleeve; the side face of one end of the sleeve is fixedly connected with a first fixing block, the side face of the first fixing block is provided with a second connecting rod, the end, away from the first fixing block, of the second connecting rod is rotationally connected with a second fixing block, and the side face of the second fixing block is rotationally connected with a first connecting rod. During use, one end of the outer tubular column casing is arranged on the outer surface of the flexible outer plate in a sleeving mode, after sleeving is completed, the push rod arranged at one end of the sleeve is started, the output end of the push rod moves forwards, and therefore the first fixing block can be driven to move forwards through the sleeve.

Description

Technical Field

[0001] This utility model relates to the field of steering gear processing technology, and in particular to a positioning device for milling and machining the outer tube of a steering gear. Background Technology

[0002] Positioning devices for milling steering gear outer tube cylinders are commonly used to precisely fix the outer tube cylinder during milling. Their main functions include: ensuring the positional accuracy of the workpiece during machining, preventing displacement from affecting dimensional accuracy and geometric tolerances; reducing machining errors caused by vibration and cutting forces, improving surface quality, and ensuring smooth machining.

[0003] In practical applications, existing milling positioning devices, through the cooperation of fixtures and positioning blocks, can basically meet the milling requirements of external tube cylinders. However, the following problems still exist:

[0004] In use, because the models of steering gear outer tubes are different, the positioning device cannot effectively limit the movement of different models of tubes during milling, which leads to the displacement of the outer tube during processing and damage. Therefore, this application provides a positioning device for milling steering gear outer tubes to meet the requirements. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a positioning device for milling the outer tube of a steering gear.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a positioning device for milling and machining of the outer tube column of a steering gear, comprising a machining table body, a milling cutter being provided on the top of the machining table body, and a positioning component being provided on the bottom of the milling cutter;

[0007] The positioning component includes a sleeve, a first fixing block is fixedly connected to the side of one end of the sleeve, a second connecting rod is provided on the side of the first fixing block, a second fixing block is rotatably connected to the end of the second connecting rod away from the first fixing block, the first connecting rod is rotatably connected to the side of the second fixing block, and an arc-shaped plate is fixedly connected to the top of the second fixing block.

[0008] In a preferred embodiment, the second fixing block has a limiting groove on its side, one end of the first connecting rod is fixedly connected to a first fixing rod, one end of the first fixing rod extends into the inner cavity of the limiting groove, and one end of the first fixing rod is slidably connected to the inner cavity of the limiting groove.

[0009] The technical effect of adopting the above technical solution is that the movement distance of the second link can be compensated by the cooperation of the first fixed rod and the limiting groove.

[0010] In a preferred embodiment, the limiting plate has a sliding groove on its side, the fixing plate has a slider on its side, one end of the slider is fixedly connected to a second fixing rod, and the side of the second fixing rod is fixedly connected to a second spring piece.

[0011] The technical effect of adopting the above technical solution is that: a clamping plate is provided at one end of the second spring piece, and the second fixed rod can be driven to move by setting a slider; the stress generated by the contact between the clamping plate and the outer tube cylinder can be absorbed by setting the second spring piece.

[0012] In a preferred embodiment, one end of the support rod is fixedly connected to a limiting block, the outer surface of the sleeve is provided with a groove, one end of the limiting block extends to the outside of the groove, and one end of the limiting block is slidably connected to the inner cavity of the groove.

[0013] The technical effect of adopting the above technical solution is that the movement trajectory of the sleeve can be limited by the cooperation of the limiting block and the groove.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] The first and second connecting rods are rotatably connected at their midpoints via a pivot. A flexible outer plate is fixedly connected to the side of the first spring plate. In use, one end of the outer tube column is first fitted onto the outer surface of the flexible outer plate. After fitting, the push rod at one end of the sleeve is activated. The output end of the push rod moves forward, thereby driving the first fixed block forward through the sleeve, which in turn drives one end of the second connecting rod forward. When one end of the second connecting rod moves forward to a certain position, the other ends of the second and first connecting rods move upward, thereby driving the arc plate upward through the second fixed block, which in turn drives the flexible outer plate upward. When the arc plate moves to a certain position, the top of the flexible outer plate contacts the inner wall of the outer tube column, thereby guiding and initially fixing the position of the column. This allows for the positioning of columns of different sizes, preventing the column from shifting during milling due to mismatch between the positioning device and the dimensions, which could cause damage. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a positioning device for milling and machining the outer tube of a steering gear, provided by this utility model;

[0017] Figure 2 This utility model provides an internal cross-sectional view of a positioning device for milling and positioning the outer tube of a steering gear.

[0018] Figure 3A cross-sectional view of the positioning component of a positioning device for milling and positioning the outer tube of a steering gear, provided by this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of a fixing component for a positioning device for milling and positioning a steering gear outer tube column, provided by this utility model.

[0020] Legend:

[0021] 1. Machining table body; 11. Milling cutter;

[0022] 2. Positioning assembly; 21. Sleeve; 22. First fixing block; 23. First connecting rod; 24. Second connecting rod; 25. Limiting groove; 26. Arc plate; 27. First spring piece; 28. Second fixing block; 29. ​​First fixing rod;

[0023] 3. Fixing component; 31. Protective shell; 32. Support rod; 33. Connecting plate; 34. Limiting plate; 35. Fixing plate; 36. Slider; 37. Second fixing rod; 38. Second spring; 39. Limiting block; 310. Groove; 311. Slide groove; 312. Sleeve. Detailed Implementation

[0024] 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.

[0025] like Figure 1 - Figure 3 As shown, this embodiment provides a technical solution: a positioning device for milling and machining the outer tube of a steering gear, including a machining table body 1, a milling cutter 11 is provided on the top of the machining table body 1, and a positioning component 2 is provided on the bottom of the milling cutter 11;

[0026] The positioning component 2 includes a sleeve 21, a first fixing block 22 fixedly connected to one side of the sleeve 21, a second connecting rod 24 provided on the side of the first fixing block 22, a second fixing block 28 rotatably connected to the end of the second connecting rod 24 away from the first fixing block 22, a first connecting rod 23 rotatably connected to the side of the second fixing block 28, an arc-shaped plate 26 fixedly connected to the top of the second fixing block 28, a first spring piece 27 fixedly connected to the top of the arc-shaped plate 26, a limit groove 25 formed on the side of the second fixing block 28, and a first connecting rod 23 fixedly connected to one end of the first connecting rod 23. A first fixed rod 29, one end of which extends into the inner cavity of the limiting groove 25, is slidably connected to the inner cavity of the limiting groove 25. A flexible outer plate is fixedly connected to the side of the first spring piece 27. In use, one end of the outer tube column is first sleeved on the outer surface of the flexible outer plate. After sleeved, the push rod set at one end of the sleeve 21 is activated. The output end of the push rod moves forward, thereby driving the first fixed block 22 forward through the sleeve 21, which in turn drives one end of the second connecting rod 24 forward. At this time, the first... The other end of the second link 24 moves upward. A pivot is set in the middle of the first link 23 and the second link 24, causing the second link 24 and the first link 23 to move upward synchronously. This, in turn, drives the arc-shaped plate 26 upward. When the first link 23 moves upward, the limiting groove 25 and the first fixed rod 29 cooperate to compensate for the movement distance of the first link 23, thus preventing the first link 23 and the second link 24 from jamming during movement. When the arc plate 26 moves upward, it can drive the flexible outer plate to move upward. When the arc plate 26 moves to a certain position, the top of the flexible outer plate contacts the inner wall of the outer tube column. At this time, the first spring plate 27 is compressed, which can absorb the stress generated by the contact between the flexible outer plate and the inner wall of the column, effectively improving the uniform distribution of stress and preventing the inner wall of the column from deforming during the positioning process. Through the cooperation of the arc plate 26 and the first spring plate 27, it can adapt to outer tube columns of different sizes, avoiding damage caused by the mismatch between the positioning device and the column model.

[0027] Going a step further, such as Figure 2 and Figure 4As shown: A fixing component 3 is provided at one end of the sleeve 21. The fixing component 3 includes a protective shell 31. A support rod 32 is provided in the inner cavity of the protective shell 31. A sleeve 312 is fitted on the outer surface of one end of the support rod 32. A connecting plate 33 is fixedly connected to the side of the sleeve 312. A limit plate 34 is fixedly connected to one end of the connecting plate 33. A fixing plate 35 is provided on the side of the limit plate 34. A sliding groove 311 is opened on the outer surface of the limit plate 34. A slider 36 is provided on the side of the fixing plate 35. A limit block 39 is fixedly connected to one end of the support rod 32. A groove 310 is opened on the outer surface of the sleeve 312. One end of the limit block 39 extends to the outside of the groove 310. One end of the limit block 39 is slidably connected to the inner cavity of the groove 310. A clamping plate is provided on the side of the second fixing rod 37. One end of the support rod 32 is connected to the push rod. The output end is fixedly connected. When the output end of the push rod moves forward, it can drive the sleeve 312 to move forward through the support rod 32. Through the cooperation of the groove 310 and the limiting block 39, the sleeve 312 can be rotated clockwise. Then, through the connecting plate 33, the limiting plate 34 can be rotated clockwise. When the limiting plate 34 rotates clockwise, through the cooperation of the sliding groove 311 and the slider 36, the second fixing rod 37 can be moved towards the middle of the limiting plate 34. When the second fixing rod 37 moves to a certain position, the side of the clamping plate contacts the outer surface of the column, thereby fixing the position of the column a second time. Through the cooperation of the positioning component 2 and the fixing component 3, the column can be stably fixed during the processing of the column, avoiding the displacement of the outer tube column and causing damage.

[0028] During use, because the wall thickness of different models of outer tube columns varies, uneven distribution of clamping stress can occur during the synchronous positioning and fixing process using positioning component 2 and fixing component 3, leading to damage. Figure 4 As shown: In this scheme, a second fixing rod 37 is fixedly connected to one end of the slider 36, and a second spring piece 38 is fixedly connected to the side of the second fixing rod 37. An extension block is provided at the bottom of the second fixing rod 37. By providing the extension block, the clamping plate can be made to contact the outer tube cylinder faster than the flexible outer plate provided on the side of the first spring piece 27. When the clamping plate contacts the outer surface of the cylinder, the output end of the push rod continues to move, thereby causing the second spring piece 38 to be compressed, which can absorb the stress generated and avoid over-clamping and damage caused by different wall thicknesses during the positioning process.

[0029] Working principle:

[0030] like Figure 1-4 As shown:

[0031] In use: First, one end of the outer tube cylinder is fitted onto the outer surface of the flexible outer plate. After fitting, the push rod at one end of the sleeve 21 is activated. The output end of the push rod moves forward, thereby driving the sleeve 21 forward via the support rod 32. When the sleeve 21 moves forward, it drives one end of the second connecting rod 24 forward via the first fixing block 22. At this time, the opposite ends of the second connecting rod 24 and the first connecting rod 23 move upward synchronously, thereby driving the arc plate 26 upward. When the arc plate 26 moves upward, it drives the flexible outer plate located on the side of the first spring piece 27 upward. When the arc plate 26 moves to a certain position, the top of the flexible outer plate contacts the inner wall of the outer tube cylinder. At this time, the first spring piece 27 is compressed, thereby enabling... The system absorbs the stress generated by the contact between the flexible outer plate and the inner wall of the column. At the same time, when the support rod 32 moves forward, it can drive the sleeve 312 to move forward. Through the cooperation of the groove 310 and the limiting block 39, the sleeve 312 can be rotated clockwise. In turn, the connecting plate 33 can drive the limiting plate 34 to rotate clockwise. When the limiting plate 34 rotates clockwise, through the cooperation of the sliding groove 311 and the slider 36, the second fixing rod 37 can be moved towards the middle of the limiting plate 34. When the second fixing rod 37 moves to a certain position, the side of the clamping plate set at one end of the second spring 38 contacts the outer surface of the column, thereby fixing the position of the column for a second time. Finally, the milling cutter 11 is started to complete the milling of the outer tube column.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A positioning device for milling and positioning the outer tube of a steering gear, comprising a machining table body (1), characterized in that, A milling cutter (11) is provided on the top of the processing table body (1), and a positioning component (2) is provided on the bottom of the milling cutter (11). The positioning component (2) includes a sleeve (21), a first fixing block (22) is fixedly connected to one side of the sleeve (21), a second connecting rod (24) is provided on the side of the first fixing block (22), a second fixing block (28) is rotatably connected to the end of the second connecting rod (24) away from the first fixing block (22), a first connecting rod (23) is rotatably connected to the side of the second fixing block (28), and an arc plate (26) is fixedly connected to the top of the second fixing block (28).

2. The positioning device for milling and machining the outer tube of a steering gear according to claim 1, characterized in that, The top of the arc plate (26) is fixedly connected to the first spring piece (27).

3. The positioning device for milling and machining the outer tube of a steering gear according to claim 1, characterized in that, The second fixing block (28) has a limiting groove (25) on its side. One end of the first connecting rod (23) is fixedly connected to a first fixing rod (29). One end of the first fixing rod (29) extends into the inner cavity of the limiting groove (25). One end of the first fixing rod (29) is slidably connected to the inner cavity of the limiting groove (25).

4. The positioning device for milling and machining the outer tube of a steering gear according to claim 1, characterized in that, One end of the sleeve (21) is provided with a fixing component (3), the fixing component (3) includes a protective shell (31), the inner cavity of the protective shell (31) is provided with a support rod (32), the outer surface of one end of the support rod (32) is fitted with a sleeve (312), the side of the sleeve (312) is fixedly connected with a connecting plate (33), one end of the connecting plate (33) is fixedly connected with a limiting plate (34), the side of the limiting plate (34) is provided with a fixing plate (35), the outer surface of the limiting plate (34) is provided with a sliding groove (311), and the side of the fixing plate (35) is provided with a slider (36).

5. The positioning device for milling and machining the outer tube of a steering gear according to claim 4, characterized in that, One end of the slider (36) is fixedly connected to a second fixing rod (37), and the side of the second fixing rod (37) is fixedly connected to a second spring piece (38).

6. The positioning device for milling and machining the outer tube of a steering gear according to claim 4, characterized in that, One end of the support rod (32) is fixedly connected to a limiting block (39), and a groove (310) is provided on the outer surface of the sleeve (312). One end of the limiting block (39) extends to the outside of the groove (310), and one end of the limiting block (39) is slidably connected to the inner cavity of the groove (310).

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