Ellipsoidal head turning fixture

Abstract

The utility model discloses an ellipsoidal head turning fixing device, can directly fix and carry out roundness correction in the processing area of turning equipment to reliable guarantee the quality of subsequent turning processing. The device includes fixed base (1), fixed base (1) is fixedly connected with tail top (3), tail top (3) is installed in the pivot of turning equipment, the shape of fixed base (1) is compatible with the inner wall shape of ellipsoidal head, a plurality of correction parts (2) are arranged along the circumference of fixed base (1) at intervals, the correction part (2) is adjustably connected with the position of fixed base (1), the correction part (2) can extend or retract fixed base (1), and the position of correction part (2) is adjusted, and the end of correction part (2) is abutted on the inner wall of ellipsoidal head to carry out roundness correction.

Description

Technical Field

[0001] This utility model relates to the field of machining auxiliary technology, specifically to an ellipsoidal head turning and fixing device. Background Technology

[0002] The ellipsoidal head is roughly cylindrical in shape. The roundness of the semi-finished ellipsoidal head directly determines the quality of the finished product. Therefore, during subsequent turning, the roundness of the semi-finished ellipsoidal head needs to be inspected and corrected. Currently, due to the large deformation of stamped ellipsoidal heads, the wall thickness cannot be guaranteed during machining. Manual inspection and correction are inefficient. Furthermore, when the semi-finished ellipsoidal head is installed on turning equipment, clamping and stress deformation may occur. During turning, the roundness of the ellipsoidal head cannot be reliably guaranteed, thus affecting the quality of the finished ellipsoidal head. Utility Model Content

[0003] To address the problems in the prior art, this utility model provides an ellipsoidal head turning and fixing device that can be directly fixed in the machining area of ​​the turning equipment and perform roundness correction, thereby reliably ensuring the quality of subsequent turning processes.

[0004] To achieve the above objectives, this utility model provides an ellipsoidal head turning and fixing device, including a fixing seat, a tail top fixedly connected to the fixing seat, the tail top being mounted on the rotating shaft of the turning equipment, the shape of the fixing seat being adapted to the inner wall shape of the ellipsoidal head, and a plurality of straightening elements spaced circumferentially on the fixing seat, the straightening elements being tunably connected to the fixing seat, the straightening elements being able to extend or retract from the fixing seat, and by adjusting the position of the straightening elements, the end of the straightening elements can be made to abut against the inner wall of the ellipsoidal head for roundness correction.

[0005] Furthermore, the outer periphery of the fixing base is provided with a plurality of adjustment holes spaced radially apart, and a plurality of the corrective members are provided in a one-to-one correspondence with the adjustment holes. The positions of the plurality of corrective members are adjustablely installed in the adjustment holes, and the corrective members can extend or retract from the corresponding adjustment holes.

[0006] Furthermore, the adjusting hole is provided with an internal thread, and the straightening component includes a straightening head and an adjusting screw connected together. The adjusting screw is screwed to the adjusting hole, and rotating the adjusting screw can drive the straightening head to abut against the inner wall of the ellipsoidal head.

[0007] Furthermore, the adjusting screw is provided with a first thread and a second thread in sequence along the axial direction, the straightening head is open at one end, the opening of the straightening head is provided with a screw hole, the first thread is screwed into the adjusting hole, and the second thread is screwed into the screw hole.

[0008] Furthermore, the straightening head is in the shape of a copper column, and a countersunk platform is provided inside the straightening head. The diameter of the countersunk platform is larger than the diameter of the screw hole, and the adjusting screw has a smooth section between the first thread and the second thread.

[0009] Furthermore, the fixing base has a plurality of equally spaced perforations, and the adjusting hole extends radially from the outer periphery of the fixing base to the perforations.

[0010] Furthermore, the outer axial end of the corrector passes through the adjustment hole, and the inner axial end of the corrector is provided with a limiting part.

[0011] Furthermore, the corrective member is connected to a driver, which is configured to drive the corrective member to extend or retract from the fixing base.

[0012] Furthermore, a tail top is coaxially connected to the center of the fixed base. The tail top is stepped and has a large end and a small end. The large end of the tail top is fixedly connected to the fixed base by a fastener, and the small end of the tail top is fitted into the rotating shaft of the turning equipment.

[0013] Furthermore, it also includes a detector mounted on the mounting base, the detector being configured to detect the roundness of the ellipsoidal head.

[0014] Compared with the prior art, the ellipsoidal head turning fixing device of this utility model has a fixing seat set at the tail of the turning equipment shaft. The shape of the fixing seat is adapted to the inner wall shape of the ellipsoidal head. Multiple straightening elements are arranged at intervals along the circumference of the fixing seat. The straightening elements are connected to the fixing seat in an adjustable position. Thus, according to the roundness of the ellipsoidal head, the position of the straightening elements can be adjusted so that the end of the straightening element abuts against the inner wall of the ellipsoidal head. By adjusting the different extension positions of the straightening elements, the roundness of the ellipsoidal head can be effectively corrected to meet the process requirements of turning. At the same time, the multiple straightening elements clamp and fix the inner wall of the ellipsoidal head, realizing the fixing of the ellipsoidal head in the processing area of ​​the turning equipment and the roundness correction, ensuring the processing quality in subsequent turning processes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the device of this utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of the device of this utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the structure of the fixing base of the device of this utility model;

[0018] Figure 4This is a schematic diagram of the corrective component of the device of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the correction head of the device of this utility model;

[0020] Among them, 1 is the fixed base, 101 is the slatted window, 102 is the adjustment hole, 2 is the straightening part, 201 is the straightening head, 202 is the countersunk platform, 203 is the screw hole, 204 is the adjusting screw, 205 is the first thread, 206 is the smooth rod section, 207 is the second thread, 208 is the limiting part, 3 is the tail top, and 4 is the fixing part. Detailed Implementation

[0021] The present invention will be further explained and described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. 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.

[0022] This utility model provides a turning and fixing device for ellipsoidal heads. See details below. Figure 1 and Figure 2 The fixed seat 1 is fixedly connected to the tail top (3), which is installed on the rotating shaft of the turning equipment. The shape of the fixed seat 1 is adapted to the inner wall shape of the ellipsoidal head. The fixed seat 1 is provided with multiple straightening parts 2 at intervals along the circumference. The straightening parts 2 are connected to the fixed seat 1 in an adjustable position. The straightening parts 2 can extend or retract from the fixed seat 1. By adjusting the position of the straightening parts 2, the end of the straightening parts 2 can abut against the inner wall of the ellipsoidal head to correct the roundness.

[0023] The ellipsoidal head turning and fixing device of this utility model has a fixing seat 1 set on the tail top 3 of the turning equipment shaft. The shape of the fixing seat 1 is adapted to the shape of the inner wall of the ellipsoidal head. Multiple straightening elements 2 are arranged at intervals along the circumference of the fixing seat 1. The straightening elements 2 are connected to the fixing seat 1 in an adjustable position. Thus, according to the roundness of the ellipsoidal head, the position of the straightening elements 2 can be adjusted so that the end of the straightening element 2 abuts against the inner wall of the ellipsoidal head. By adjusting the different extension positions of the straightening elements 2, the roundness of the ellipsoidal head can be effectively corrected to meet the process requirements of turning. At the same time, the multiple straightening elements 2 clamp and fix the inner wall of the ellipsoidal head, realizing the fixing of the ellipsoidal head in the processing area of ​​the turning equipment and the roundness correction, ensuring the processing quality in subsequent turning.

[0024] Specifically, see Figure 3The outer periphery of the fixed base 1 is provided with multiple adjusting holes 102 spaced radially, which is the direction perpendicular to the axis of rotation of the turning equipment. Multiple straightening elements 2 are arranged one-to-one with the adjusting holes 102. The positions of the multiple straightening elements 2 are adjustablely installed in the adjusting holes 102, and the straightening elements 2 can extend or retract into the corresponding adjusting holes 102. The adjusting holes 102 serve as channels for the straightening elements 2 to enter and exit, and have a guiding and accommodating function, realizing the extension and retraction of the straightening elements 2 and ensuring smooth entry and exit.

[0025] More specifically, the adjusting hole 102 is provided with an internal thread, and the straightening component 2 includes a straightening head 201 and an adjusting screw 204 connected together. The adjusting screw 204 is screwed into the adjusting hole 102. Rotating the adjusting screw 204 will cause the straightening head 201 to abut against the inner wall of the ellipsoidal head. By adjusting the screwed relationship between the adjusting screw 204 and the adjusting hole 102, the different extension lengths of the straightening component 2 can be precisely adjusted by turning the adjusting screw 204. The structure is simple, the cost is low, and the adjustment is reliable, precise, and stable.

[0026] Preferably, see Figure 4 and Figure 5 The adjusting screw 204 is provided with a first thread 205 and a second thread 207 sequentially along the axial direction. The straightening head 201 is open at one end, and the opening of the straightening head 201 is provided with a screw hole 203. The first thread 205 is screwed into the adjusting hole 102, and the second thread 207 is screwed into the screw hole 203. The straightening head 201 and the adjusting screw 204 are threadedly connected through the screw hole 203 and the second thread 207, which facilitates the installation and disassembly of both, and also facilitates the installation and disassembly of the straightening component 2 from the fixed base 1.

[0027] Preferably, the straightening head 201 is in the shape of a copper column. The copper column is relatively soft, so that when the straightening head 201 abuts against the inner wall of the ellipsoidal head, it will not cause great damage to the inner wall and can provide sufficient abutment force to ensure the reliable fixation of the ellipsoidal head. The straightening head 201 has a countersunk platform 202 inside, and the diameter of the countersunk platform 202 is larger than the diameter of the screw hole 203. The adjusting screw 204 has a smooth section 206 between the first thread 205 and the second thread 207. In this embodiment, the second thread 207 is set to a short distance, sufficient to meet the fitting requirements with the screw hole 203 of the straightening head 201. When the second thread 207 of the adjusting screw 204 separates from the screw hole 203 of the straightening head 201, the smooth rod section 206 is located at the screw hole 203, and the second thread 207 extends into the countersunk 202. At this time, the straightening head 201 can move at multiple angles on the adjusting screw 204 without falling off, thus facilitating the fitting and contact between the straightening head 201 and the inner wall of the ellipsoidal head, achieving precise position adjustment, and making the straightening more accurate and rigid. In this embodiment, the outer end of the straightening head 201, i.e., the end that abuts against the inner wall of the ellipsoidal head, can be set to an arc shape. This better fits the shape of the inner wall of the ellipsoidal head, ensuring a better fit and improving the fixing and straightening effect. The material of the orthodontic head 201 can also be other slightly soft but sufficiently rigid materials, which can satisfy reliable fixation and correction without damaging the inner wall of the ellipsoidal head.

[0028] Specifically, the fixed base 1 has a plurality of equally spaced perforations 101. An adjustment hole 102 extends radially from the outer periphery of the fixed base 1 to the perforation 101. The outer axial end of the straightening member 2 passes through the adjustment hole 102, and a limiting part 208 is provided at the inner axial end of the straightening member 2. The perforations 101 can serve as a space for the straightening member 2 to enter and exit, as well as for installation and disassembly. At the same time, they can reduce the weight of the fixed base 1 without losing sufficient strength, ensuring that the rotating shaft can reliably and smoothly drive the fixed base 1 and the ellipsoidal head to rotate without shaking, thus ensuring the quality of subsequent turning operations. In this embodiment, the fixed base 1 is provided with four equally spaced perforations 101. In other embodiments, two or three equally spaced perforations 101 can also be provided. The size and number of perforations 101 should be sufficient to accommodate a sufficient number of straightening members 2, while ensuring that the fixed base 1 has sufficient rigidity. The inner end of the straightening component 2 is provided with a limiting part 208, which refers to the end close to the axial direction. The outer end of the axial direction is provided with a straightening head 201. The size of the straightening head 201 is larger than the size of the adjustment hole 102. The movement stroke of the straightening component 2 is limited by the limiting part 208 and the straightening head 201. In addition, the limiting part 208 can be used as an operating part to facilitate the adjustment of the position of the straightening component 2. The end of the limiting part 208 can be provided with an internal hexagonal hole or an external hexagonal end face, etc., to make it more convenient for personnel to operate.

[0029] Preferably, the straightening element 2 is connected to a driver, which is configured to drive the straightening element 2 to extend or retract from the fixing base 1. The driver can be a pneumatic, hydraulic, electric, or mechanical component, etc., and the straightening element 2 can also be a direct electric push rod, etc. The driver is connected to a controller, and through an automation system, the extension and retraction length of the straightening element 2 is automatically adjusted to improve the level of automation.

[0030] Preferably, the ellipsoidal head turning and fixing device further includes a detector, which is mounted on the fixing base 1 and configured to detect the roundness of the ellipsoidal head. The detector is connected to the controller for feedback. The detector can be an infrared, laser, or other detection device. The detector detects the roundness of the ellipsoidal head in real time and feeds it back to the controller. Based on the detected roundness of the ellipsoidal head at that position, the controller controls the extension and retraction length of the corresponding straightening member 2 through a driver, thereby realizing the automatic fixing and roundness correction of the ellipsoidal head and improving the automation level of the device.

[0031] Preferably, a tail top 3 is coaxially connected to the center of the fixed base 1. The tail top 3 is stepped and has a large end and a small end. The large end is the end with a larger diameter, and the small end is the end with a smaller diameter. The large end of the tail top 3 is fixedly connected to the fixed base 1 by a fixing member 4. The large end increases the connection area and improves the connection stability. The small end of the tail top 3 is fitted into the rotating shaft of the turning equipment. The small end fitting facilitates installation, improves connection stability, and facilitates power transmission. The fixing member 4 can be a bolt, etc., to achieve a reliable and stable connection between the fixed base 1 and the tail top 3. The small end of the tail top 3 can be fitted into the rotating shaft by a spline or other means to improve the reliable connection between the tail top 3 and the rotating shaft. The tail top 3 achieves a stable connection between the fixed base 1 and the rotating shaft, so that the rotating shaft can smoothly drive the fixed base 1 and the ellipsoidal head to rotate.

[0032] This utility model discloses a method for fixing an ellipsoidal head during machining, employing the aforementioned ellipsoidal head machining and fixing device. The method includes: first, inserting a fixing seat 1 into the inner cavity of the ellipsoidal head; then, sequentially adjusting the extension of the straightening member 2 until its end abuts against the inner wall of the ellipsoidal head to fix it to the fixing seat 1; next, sequentially checking the roundness of each position on the inner wall of the ellipsoidal head; adjusting the extension length of the straightening member 2 at the corresponding position based on the checked roundness to ensure the roundness of the corresponding position on the inner wall of the ellipsoidal head meets the process requirements, until all positions on the inner wall of the ellipsoidal head meet the process requirements; finally, machining the ellipsoidal head until completion; adjusting the straightening member 2 to retract into the fixing seat 1, and then removing the ellipsoidal head. The method is simple to operate. By adjusting different extension lengths of the straightening member 2, roundness correction is achieved simultaneously with fixing the ellipsoidal head, thereby reliably ensuring the quality of subsequent machining. In this embodiment, the roundness can be detected in real time by dial gauge, and then the extension length of the straightener 2 can be adjusted so that the corresponding position of the ellipsoidal head meets the process requirements. Alternatively, the roundness can be detected in real time by setting a detector, and the extension length of the straightener 2 can be automatically adjusted by an automatic control system to achieve automatic fixing and correction.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for fixing an ellipsoidal head during machining, characterized in that, The device includes a fixed base (1), which is fixedly connected to a tail top (3). The tail top (3) is installed on the rotating shaft of the turning equipment. The shape of the fixed base (1) is adapted to the inner wall shape of the ellipsoidal head. The fixed base (1) is provided with a plurality of straightening elements (2) at intervals along the circumference. The straightening elements (2) are connected to the fixed base (1) in an adjustable position. The straightening elements (2) can extend or retract from the fixed base (1). By adjusting the position of the straightening elements (2), the end of the straightening elements (2) can abut against the inner wall of the ellipsoidal head to correct the roundness.

2. The ellipsoidal head turning and fixing device according to claim 1, characterized in that, The outer periphery of the fixed base (1) is provided with a plurality of adjustment holes (102) spaced radially apart. A plurality of the corrective members (2) are provided in a one-to-one correspondence with the adjustment holes (102). The positions of the plurality of corrective members (2) are adjustablely installed in the adjustment holes (102). The corrective members (2) can extend or retract from the corresponding adjustment holes (102).

3. The ellipsoidal head turning and fixing device according to claim 2, characterized in that, The adjusting hole (102) is provided with an internal thread. The straightening component (2) includes a straightening head (201) and an adjusting screw (204) connected together. The adjusting screw (204) is screwed to the adjusting hole (102). Rotating the adjusting screw (204) will cause the straightening head (201) to abut against the inner wall of the ellipsoidal head.

4. The ellipsoidal head turning and fixing device according to claim 3, characterized in that, The adjusting screw (204) is provided with a first thread (205) and a second thread (207) in sequence along the axial direction. The straightening head (201) is open at one end and has a screw hole (203) in the opening. The first thread (205) is screwed into the adjusting hole (102) and the second thread (207) is screwed into the screw hole (203).

5. The ellipsoidal head turning and fixing device according to claim 4, characterized in that, The straightening head (201) is in the shape of a copper column. A countersunk plate (202) is provided inside the straightening head (201). The diameter of the countersunk plate (202) is larger than the diameter of the screw hole (203). The adjusting screw (204) has a smooth rod section (206) between the first thread (205) and the second thread (207).

6. The ellipsoidal head turning and fixing device according to claim 2, characterized in that, The fixing seat (1) has a plurality of equally spaced perforations (101), and the adjusting hole (102) extends radially from the outer periphery of the fixing seat (1) to the perforations (101).

7. The ellipsoidal head turning and fixing device according to claim 6, characterized in that, The outer axial end of the corrector (2) passes through the adjustment hole (102), and the inner axial end of the corrector (2) is provided with a limiting part (208).

8. The ellipsoidal head turning and fixing device according to claim 1, characterized in that, The corrective element (2) is connected to a driver, which is configured to drive the corrective element (2) to extend or retract from the fixing base (1).

9. An ellipsoidal head turning and fixing device according to any one of claims 1 to 8, characterized in that, The center of the fixed seat (1) is coaxially connected to the tail top (3). The tail top (3) is stepped and has a large end and a small end. The large end of the tail top (3) is fixedly connected to the fixed seat (1) through a fastener (4), and the small end of the tail top (3) is embedded in the rotating shaft of the turning equipment.

10. An ellipsoidal head turning and fixing device according to any one of claims 1 to 8, characterized in that, It also includes a detector mounted on the mounting base (1), the detector being configured to detect the roundness of the ellipsoidal head.

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