An automobile axle part machining positioning device

Abstract

The application discloses a kind of automobile axle parts machining positioning devices, belong to automobile axle parts processing field, the positioning device includes lathe, three-jaw chuck being arranged in the inside of lathe;Tailstock body being arranged in the inside of lathe, spindle being arranged in the one end of tailstock body, box being arranged in the one end of spindle, curve type lever between tailstock body and spindle and connecting assembly being arranged in the one end of curve type lever are set up.This application is designed through tailstock body, spindle, curve type lever, plug rod, locking piece and limiting ring, according to the bending condition of part, the curve type lever of corresponding curve shape is selected, the plug rod is inserted in the round groove of spindle, the protruding block is inserted in the clamping groove, the limiting ring is sleeved on the outer wall of spindle, the movement of round rod is limited, the fixed connection of curve type lever and spindle is completed, the tailstock body fixed in the end of curve type lever can be contacted and extruded with the end of part, and the machining positioning of various types of automobile axle parts is facilitated.

Description

Technical Field

[0001] This application relates to the field of automotive axle parts processing technology, specifically an automotive axle parts processing positioning device. Background Technology

[0002] When machining automotive shaft parts, CNC machine tools are typically used for shaft cutting. Before cutting, the two ends of the shaft need to be positioned and installed using a chuck and a rotary center.

[0003] In this method, the center of the rotary center and the center of the chuck are on the same straight line. However, in addition to straight shafts, there are also shafts with one end bent, which makes it impossible to use this type of rotary center for positioning and installation of shaft parts, affecting the processing of various types of shaft parts.

[0004] Therefore, this application provides a positioning device for machining automotive shaft parts to solve the above-mentioned problems. Utility Model Content

[0005] This application provides a positioning device for machining automotive shaft parts, aiming to solve the problems mentioned in the background art, such as the existing rotary center having the center body and the center of the chuck on the same straight line, but automotive shaft parts, in addition to straight shafts, also have shafts with one end bent, making it impossible to use such rotary centers for positioning and installation of shaft parts, thus affecting the machining of various types of shaft parts.

[0006] To achieve the above objectives, this application provides the following technical solution: a machining and positioning device for automotive shaft parts, comprising a lathe and a three-jaw chuck disposed inside the lathe for clamping one end of the shaft part;

[0007] To facilitate the positioning of non-linear shaft parts: a center body is provided inside the lathe for positioning the other end of the shaft part; a spindle is provided at the end of the center body away from the three-jaw chuck for driving the center body to rotate; a housing is provided at the end of the spindle away from the center body for mounting the spindle; a curved rod is provided between the center body and the spindle for changing the position of the center body; and a connecting assembly is provided at the end of the curved rod facing the spindle for connecting the center body and the spindle. When positioning non-linear shaft parts, first insert one end of the part into the three-jaw chuck for clamping and fixing. Then, according to the curvature of the other end of the part, select the corresponding curved rod and insert the rod into the circular groove of the main shaft. Under the action of the elastic ring pushing the baffle, the protrusion is inserted into the slot. Then, rotate the limiting ring to fit on the outer wall of the main shaft, restricting the movement of the circular rod. This keeps the protrusion engaged with the slot, completing the fixed connection between the curved rod and the main shaft. This allows the center body fixed at the end of the curved rod to contact and press against the end of the part, facilitating the machining and positioning of various types of automotive shaft parts.

[0008] Preferably, to facilitate the positioning of non-linear shaft parts: the end of the curved rod away from the main shaft is fixedly connected to the end of the center body near the main shaft, the curved shape of the curved rod, and the center of the main shaft and the center of the three-jaw chuck are located on the same horizontal straight line. The three-jaw chuck and the center body respectively clamp and position the two ends of the shaft part.

[0009] Preferably, to facilitate quick replacement of the curved rod: the connecting assembly includes a plug fixedly connected to the end of the curved rod facing the spindle for connection with the spindle, a locking member disposed at the end of the spindle for limiting the movement of the plug, and a limiting ring sleeved on the outside of the spindle for limiting the movement of the locking member. The locking member limits the movement of the plug, and the limiting ring limits the movement of the locking member, thereby enabling quick installation of the curved rod to the spindle.

[0010] Preferably, to facilitate the installation of the curved rod and the main shaft: the end of the main shaft facing the curved rod has a circular groove for inserting the plug rod, the outer wall of the circular groove has a mounting cavity for installing the locking member, and the outer wall of the plug rod has a slot for inserting the locking member. The curved rod and the main shaft are installed by inserting the plug rod into the circular groove.

[0011] Preferably, to facilitate locking of the insertion rod and the spindle: the locking element includes a protrusion inserted into the slot to restrict the movement of the insertion rod, a round rod fixedly connected to the end of the protrusion to restrict the movement of the protrusion, a baffle fixedly sleeved on the outer wall of the round rod to drive the movement of the round rod, and an elastic ring sleeved on the outer wall of the round rod to drive and push the baffle. The inner wall of the mounting cavity has a movable cavity for receiving the baffle and the elastic ring. The elastic ring pushes the baffle, and the baffle drives the round rod, causing the protrusion to insert into the slot, thus restricting the movement of the insertion rod.

[0012] Preferably, both the protrusion and the slot are hemispherical.

[0013] Preferably, to facilitate the connection between the limiting ring and the main shaft: the outer wall of the main shaft facing the curved rod end has a first thread, and the inner wall of the limiting ring has a second thread, with the first thread and the second thread meshing with each other. By rotating the limiting ring, the main shaft and the limiting ring are fixedly connected under the action of the first thread and the second thread.

[0014] This application, through the design of a center body, a main shaft, a curved rod, a insert rod, a locking element, and a limiting ring, selects a curved rod with a corresponding curve shape based on the curvature of the other end of the part. The insert rod is inserted into the circular groove of the main shaft, allowing the protrusion to be inserted into the slot. Then, the limiting ring is rotated to fit on the outer wall of the main shaft, restricting the movement of the circular rod. This maintains the engagement between the protrusion and the slot, completing the fixed connection between the curved rod and the main shaft. The center body fixed at the end of the curved rod can contact and press against the end of the part, facilitating the machining and positioning of various types of automotive axle parts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a positioning device for machining automotive shaft parts.

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the middle box and the top box;

[0017] Figure 3 for Figure 2 A schematic diagram of the cross-section at the connection between the center point and the main shaft;

[0018] Figure 4 for Figure 2 Schematic diagram of the curved rod and main shaft;

[0019] Figure 5 for Figure 4 Schematic diagram of the structure of the central spindle and locking components;

[0020] Figure 6 for Figure 4 Schematic diagram of the curved rod and the insertion rod;

[0021] Figure 7 for Figure 5 A schematic diagram of the locking mechanism.

[0022] In the picture:

[0023] 1. Lathe; 2. Three-jaw chuck; 3. Center body; 4. Spindle; 5. Housing; 6. Curved rod; 7. Insert rod; 8. Locking element; 81. Protrusion; 82. Round rod; 83. Baffle; 84. Elastic ring; 9. Restriction ring. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] This embodiment provides a positioning device for machining automotive shaft parts, such as... Figure 1-7 As shown, the positioning device includes a lathe 1 and a three-jaw chuck 2 disposed inside the lathe 1 for clamping one end of a shaft-type part;

[0026] To facilitate the positioning of non-linear shaft parts: a center body 3 is set inside the lathe 1 for positioning the other end of the shaft part; a spindle 4 is set at the end of the center body 3 away from the three-jaw chuck 2 for driving the center body 3 to rotate; a housing 5 is set at the end of the spindle 4 away from the center body 3 for mounting the spindle 4; a curved rod 6 is set between the center body 3 and the spindle 4 for changing the position of the center body 3; and a connecting assembly is set at the end of the curved rod 6 facing the spindle 4 for connecting the center body 3 and the spindle 4. When positioning non-linear shaft parts, first insert one end of the part into the three-jaw chuck 2 for clamping and fixing. Then, according to the curvature of the other end of the part, select the corresponding curved rod 6 and insert the rod 7 into the circular groove of the main shaft 4. Under the action of the elastic ring 84 pushing the baffle 83, the protrusion 81 is inserted into the groove. Then rotate the limiting ring 9 and put it on the outer wall of the main shaft 4 to restrict the movement of the circular rod 82. This keeps the protrusion 81 engaged with the groove, completing the fixed connection between the curved rod 6 and the main shaft 4. This allows the center body 3 fixed at the end of the curved rod 6 to contact and press with the end of the part, which is convenient for the processing and positioning of various types of automotive shaft parts.

[0027] Furthermore, the lathe 1 is an existing CNC machine tool, the three-jaw chuck 2 is an existing three-jaw chuck in the CNC machine tool, which drives the rotation of shaft parts, the spindle 4 and the housing 5 form the existing rotary center in the CNC machine tool, and the spindle 4 is connected to the bearing assembly inside the housing 5 to realize the rotation of the spindle 4, which is an existing technical means.

[0028] Specifically, to facilitate the positioning of non-linear shaft parts: the end of the curved rod 6 furthest from the main shaft 4 is fixedly connected to the end of the center body 3 closest to the main shaft 4. The curve of the curved rod 6 ensures that the center of the main shaft 4 and the center of the three-jaw chuck 2 are on the same horizontal straight line. The three-jaw chuck 2 and the center body 3 respectively clamp and position the two ends of the shaft part. The contact area between the center body 3 and the curved rod 6 is welded and fixed. The dimensions of the curved rod 6 are adapted to the dimensions of the main shaft 4. The curve of the curved rod 6 allows the center body 3 to hold the end of the shaft part in place. The curve shape of the curved rod 6 is set according to the specific position of the end of the shaft part.

[0029] Specifically, to facilitate quick replacement of the curved rod 6: the connecting assembly includes a plug 7 fixedly connected to the end of the curved rod 6 facing the spindle 4 for connection with the spindle 4, a locking member 8 disposed at the end of the spindle 4 to restrict the movement of the plug 7, and a limiting ring 9 sleeved on the outside of the spindle 4 to restrict the movement of the locking member 8. The locking member 8 restricts the movement of the plug 7, and the limiting ring 9 restricts the movement of the locking member 8, thereby achieving quick installation of the curved rod 6 and the spindle 4. At least three locking members 8 are provided, evenly distributed around the spindle 4.

[0030] More specifically, to facilitate the installation of the curved rod 6 and the spindle 4: the end of the spindle 4 facing the curved rod 6 has a circular groove for inserting the insert rod 7, the outer wall of the circular groove has a mounting cavity for installing the locking element 8, and the outer wall of the insert rod 7 has a slot for inserting the locking element 8. The curved rod 6 and the spindle 4 are installed by inserting the insert rod 7 into the circular groove. The size of the circular groove matches the size of the insert rod 7, the number and position of the mounting cavities correspond to the number and position of the locking elements 8, and the number and position of the slots correspond to the number and position of the locking elements 8.

[0031] Furthermore, to facilitate locking of the insertion rod 7 and the main shaft 4: the locking element 8 includes a protrusion 81 inserted inside the slot to restrict the movement of the insertion rod 7, a round rod 82 fixedly connected to the end of the protrusion 81 to restrict the movement of the protrusion 81, a baffle 83 fixedly sleeved on the outer wall of the round rod 82 to drive the movement of the round rod 82, and an elastic ring 84 sleeved on the outer wall of the round rod 82 to drive and push the baffle 83. The inner wall of the mounting cavity has a movable cavity for receiving the baffle 83 and the elastic ring 84. Both the protrusion 81 and the slot are hemispherical. The elastic ring 84 pushes the baffle 83, which in turn drives the round rod 82, causing the protrusion 81 to insert into the slot and restrict the movement of the insertion rod 7. The size of the moving cavity is larger than that of the mounting cavity. The size of the round rod 82 is adapted to the size of the mounting cavity. The part where the protrusion 81 and the round rod 82 meet is welded and fixed. The diameter of the protrusion 81 is the same as that of the round rod 82. When the protrusion 81 is fully inserted into the slot, the end of the round rod 82 away from the protrusion 81 is flush with the outer wall of the main shaft 4. The baffle 83 and the elastic ring 84 are both in the moving cavity. The part where the baffle 83 and the round rod 82 meet is welded and fixed. The part where the elastic ring 84 and the baffle 83 meet is bonded and fixed. The elastic ring 84 is always in a compressed state in the moving cavity. The size of the protrusion 81 is adapted to the size of the slot. The hemispherical shape facilitates the pulling of the insertion rod 7 to move the protrusion 81 out or into the slot.

[0032] Furthermore, to facilitate the connection between the limiting ring 9 and the main shaft 4: the outer wall of the main shaft 4 facing the curved rod 6 has a first thread, and the inner wall of the limiting ring 9 has a second thread, with the first and second threads meshing with each other. By rotating the limiting ring 9, the main shaft 4 and the limiting ring 9 are fixedly connected under the action of the first and second threads. Before installing the curved rod 6 and the main shaft 4, the limiting ring 9 is first fitted onto the outside of the curved rod 6. After inserting the insertion rod 7 into the main shaft 4, and after the locking member 8 and the slot are installed, the limiting ring 9 is moved to the position of the main shaft 4, and the limiting ring 9 is rotated to fix the limiting ring 9 and the main shaft 4, thereby restricting the movement of the locking member 8 and fixing the insertion rod 7 to the main shaft 4, thus achieving quick installation of the curved rod 6 and the main shaft 4.

[0033] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A machining and positioning device for automotive shaft parts, comprising a lathe (1) and a three-jaw chuck (2) disposed inside the lathe (1) for clamping one end of the shaft part. Its features are: A center body (3) is provided inside the lathe (1) for positioning the other end of the shaft part; a spindle (4) is provided at the end of the center body (3) away from the three-jaw chuck (2) for driving the center body (3) to rotate; a housing (5) is provided at the end of the spindle (4) away from the center body (3) for mounting the spindle (4); a curved rod (6) is provided between the center body (3) and the spindle (4) for changing the position of the center body (3); and a connecting assembly is provided at the end of the curved rod (6) facing the spindle (4) for connecting the center body (3) and the spindle (4).

2. The positioning device for machining automotive shaft parts according to claim 1, characterized in that: The end of the curved rod (6) away from the main shaft (4) is fixedly connected to the end of the tip body (3) close to the main shaft (4). The curved rod (6) is curved, and the center of the main shaft (4) and the center of the three-jaw chuck (2) are on the same horizontal straight line.

3. The positioning device for machining automotive shaft parts according to claim 1, characterized in that: The connecting assembly includes a plug (7) fixedly connected to the curved rod (6) at one end facing the main shaft (4) for connecting with the main shaft (4), a locking member (8) disposed at the end of the main shaft (4) for restricting the movement of the plug (7), and a limiting ring (9) sleeved on the outside of the main shaft (4) for restricting the movement of the locking member (8).

4. The positioning device for machining automotive shaft parts according to claim 3, characterized in that: The main shaft (4) has a circular groove at the end facing the curved rod (6) for inserting the plug rod (7), and the outer wall of the circular groove has an installation cavity for installing the locking member (8). The outer wall of the plug rod (7) has a slot for inserting the locking member (8).

5. The positioning device for machining automotive shaft parts according to claim 4, characterized in that: The locking member (8) includes a protrusion (81) inserted inside the slot to restrict the movement of the insertion rod (7), a round rod (82) fixedly connected to the end of the protrusion (81) to restrict the movement of the protrusion (81), a baffle (83) fixedly sleeved on the outer wall of the round rod (82) to drive the movement of the round rod (82), and an elastic ring (84) sleeved on the outer wall of the round rod (82) to drive and push the baffle (83). The inner wall of the mounting cavity is provided with a movable cavity for receiving the baffle (83) and the elastic ring (84).

6. The positioning device for machining automotive shaft parts according to claim 5, characterized in that: Both the protrusion (81) and the slot are hemispherical.

7. The positioning device for machining automotive shaft parts according to claim 3, characterized in that: The main shaft (4) has a first thread on the outer wall facing one end of the curved rod (6), and the inner wall of the limiting ring (9) has a second thread, and the first thread and the second thread mesh with each other.

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