Flange hole position simple positioning tool

Abstract

The utility model discloses a flange disc hole position processing simple positioning frock, including support, movable seat and clamping block, the movable seat is rotatablely installed with movable seat through pivot in support top center, and the movable seat outer wall is integrally formed with support arm, and three groups of support arms equidistance distribution are in movable seat outer wall, and the sliding slot is seted up in support arm, and the clamping block bottom is integrally formed with sliding block, and the sliding block is slidably installed in the sliding slot, and the pointer board is fixedly installed outside support arm, and the annular sliding slot is seted up in the movable seat outer wall, and three groups of arc -shaped sliding blocks are slidably installed in the annular sliding slot. The utility model can cooperate through damping pivot and high accuracy scale, and effectively solve the problem of traditional frock positioning precision deficiency, utilize servo motor drive screw pair, drive three groups of clamping block and realize automatic centering and clamping, and the clamping efficiency is improved obviously, adopts the cooperation structure of annular sliding slot and arc -shaped sliding block, can be locked to movable seat after adjusting, and enhances frock structure stability.

Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a simple positioning tool for machining flange hole positions. Background Technology

[0002] In industrial production, flanges are key components for pipe connections and mechanical assembly. The machining accuracy of their holes directly affects the sealing performance and assembly stability of the equipment. Currently, traditional flange hole machining and positioning tooling generally suffers from the following technical challenges:

[0003] Most tooling uses manual adjustment of angle and radial position, which relies on the operator's experience and makes it difficult to achieve high-precision positioning. For example, some tooling uses a dial and bolts for locking. Due to mechanical clearance and human reading errors, the angle positioning accuracy can usually only reach 5-10 degrees, which cannot meet the requirements of high-precision hole machining.

[0004] Traditional tooling often uses a single clamping block or a symmetrical double clamping block structure. The position of each clamping block needs to be adjusted one by one during clamping. For clamping flanges of different diameters, tooling components need to be changed frequently, resulting in long production preparation time.

[0005] Therefore, how to provide a simple positioning tool for machining flange holes is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] One objective of this invention is to provide a simple positioning fixture for flange hole machining. This invention can improve the angle positioning accuracy to 1 degree by using a damping shaft in conjunction with a high-precision scale, effectively solving the problem of insufficient positioning accuracy of traditional fixtures. By using a servo motor to drive a lead screw transmission pair, three sets of clamping blocks are driven to achieve automatic centering and clamping, significantly improving clamping efficiency. The combination structure of annular groove and arc-shaped slider can lock the movable seat after adjustment, enhancing the stability of the fixture structure. Thus, the accuracy and efficiency of flange hole machining are comprehensively improved, reducing enterprise production costs.

[0007] A simple positioning fixture for machining flange holes according to an embodiment of the present invention includes a support, a movable seat, and a clamping block. The movable seat is rotatably mounted at the top center of the support via a rotating shaft. The outer wall of the movable seat is integrally formed with a support arm, and three sets of the support arms are equidistantly distributed on the outer wall of the movable seat. A sliding groove is formed inside the support arm. A slider is integrally formed at the bottom of the clamping block and is slidably mounted in the sliding groove. A pointer plate is fixedly mounted on the outer side of the support arm. An annular sliding groove is formed around the outer wall of the support, and three sets of arc-shaped sliders are slidably mounted in the annular sliding groove. A screw is movably mounted on the outer wall of the arc-shaped slider via a bearing. A screw hole is formed through the pointer plate, and the screw passes through the screw hole and is threadedly engaged with the screw hole.

[0008] Furthermore, a lead screw is rotatably installed in the slide groove, and a threaded hole is opened through the slider, with the lead screw passing through the threaded hole and forming a transmission pair.

[0009] Furthermore, a servo motor is fixedly installed on the outer wall of the pointer plate, and the output shaft of the servo motor passes through the pointer plate and is connected to the lead screw drive.

[0010] Furthermore, the outer wall of the support is provided with a scale below the annular groove, and the arrow at the bottom of the pointer plate points to the scale.

[0011] Furthermore, the bottom of the support is integrally formed with a mounting base, and the mounting base has several sets of mounting holes equidistantly arranged around it.

[0012] Furthermore, the pivot connecting the movable seat and the support is a damping pivot, and the movable seat forms a positionable rotatable connection with the support through the damping pivot.

[0013] Furthermore, the cross-section of the annular groove is T-shaped, and the cross-section of the arc-shaped slider is T-shaped to match its annular groove.

[0014] Furthermore, the bearing used to connect the arc-shaped slider and the screw is a deep groove ball bearing, and the screw is rotatably connected to the arc-shaped slider through the deep groove ball bearing.

[0015] Furthermore, the scale is distributed in a 360-degree ring around the center of the support, and the angular interval between adjacent scale lines is 1 degree.

[0016] Furthermore, the two ends of the lead screw are rotatably mounted on the inner wall of the slide groove via bearing seats, and the bearing seats are integrally formed with the inner wall of the support arm.

[0017] The beneficial effects of this utility model are:

[0018] 1. In this utility model, the precise positioning of the flange angle is achieved through the cooperation of the damping shaft and the high-precision annular scale. The 1-degree scale interval between adjacent plates can meet the accuracy requirements of most flange hole machining. At the same time, the transmission pair structure composed of the lead screw and the slider ensures that the clamping block clamps the flange synchronously, realizes centering clamping, avoids the displacement and offset of the flange during the machining process, effectively improves the accuracy and consistency of hole machining, and reduces the scrap rate.

[0019] 2. In this utility model, the servo motor drives the lead screw to automatically clamp the flange with the clamping block, eliminating the need for manual adjustment and simplifying the clamping process. When adjusting the angle, the operator only needs to rotate the movable seat and observe the pointer and scale to quickly determine the target angle. The damping shaft can automatically lock the position, reducing the time cost of repeated calibration. The screw can achieve complete locking, preventing the movable seat from rotating during processing. The convenient operation of multiple steps significantly shortens the positioning preparation time and improves the overall processing efficiency. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a simple positioning fixture for machining flange holes proposed in this utility model;

[0022] Figure 2 This is a top view of a simple positioning fixture for machining flange holes, as proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the clamping block and slider of a simple positioning fixture for machining flange holes proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the pointer plate structure of a simple positioning fixture for machining flange hole positions proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure between the arc-shaped slider and the screw in a simple positioning fixture for machining flange holes proposed in this utility model.

[0026] In the diagram: 1. Support; 2. Movable seat; 3. Support arm; 4. Slide groove; 5. Clamping block; 6. Servo motor; 7. Pointer plate; 8. Screw; 9. Annular slide groove; 10. Arc-shaped slider; 11. Mounting base; 12. Mounting hole; 13. Lead screw; 14. Slider; 15. Threaded hole; 16. Scale; 17. Screw hole. Detailed Implementation

[0027] To make the technical means and objectives and effects of this utility model easier to understand, the embodiments of this utility model will be described in detail below with reference to specific figures.

[0028] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] like Figures 1-5 As shown, this utility model discloses a simple positioning fixture for machining flange holes, including a support 1, a movable seat 2, and a clamping block 5. The movable seat 2 is rotatably mounted at the top center of the support 1 via a damping shaft. The outer wall of the movable seat 2 is integrally formed with three sets of equidistantly distributed support arms 3. A sliding groove 4 is opened in the support arm 3. The slider 14 at the bottom of the clamping block 5 is slidably installed in the sliding groove 4. A pointer plate 7 is fixedly installed on the outer side of the support arm 3. An annular sliding groove 9 is opened around the outer wall of the support 1. Three sets of arc-shaped sliders 10 with T-shaped cross sections are slidably installed in the annular sliding groove 9. A screw 8 is movably installed on the outer wall of the arc-shaped slider 10 via a deep groove ball bearing. A threaded hole 17 that engages with the screw 8 is opened through the pointer plate 7.

[0032] The working principle of the positioning fixture disclosed in this application is as follows: First, the flange is placed on the support 1, and the servo motor 6 is started to drive the lead screw 13 to rotate. Since the lead screw 13 and the threaded hole 15 of the slider 14 form a transmission pair, the slider 14 will move linearly along the slide groove 4, driving the clamping blocks 5 to move synchronously until the flange is clamped. By synchronously adjusting the three sets of clamping blocks 5, centering and clamping of flanges of different diameters can be achieved.

[0033] When the flange angle needs adjustment, rotate the movable seat 2. The arrow at the bottom of the pointer plate 7 rotates synchronously with the support arm 3. The user can determine the rotation angle by observing the angle value pointed to by the arrow on scale 16. Scale 16 is distributed in a 360-degree ring around the center of support 1, with adjacent scale lines spaced 1 degree apart, enabling precise angle positioning. After angle adjustment, the damping shaft between the movable seat 2 and support 1 has a positioning function, maintaining the current angle position stably.

[0034] Furthermore, by rotating the screw 8, since the screw 8 is threadedly engaged with the screw hole 17 of the pointer plate 7, and the bottom of the screw 8 is connected to the arc-shaped slider 10 through the bearing, the rotation of the screw 8 will drive the pointer plate 7 to move along the screw axis. At this time, the screw 8 can be used to clamp, thereby achieving the fixed work of the movable seat 2 and avoiding the rotation of the movable seat 2 from affecting the machining accuracy.

[0035] The positioning fixture described in this application enables the movable seat 2 to rotate in a positionable manner via a damping shaft. Combined with a high-precision scale 16, it allows for precise positioning of the flange angle. The transmission pair structure between the lead screw 13 and the slider 14 enables synchronous adjustment of the clamping block 5, ensuring the flange's centering and clamping. The threaded transmission between the screw 8 and the pointer plate 7 allows for radial fine-tuning of the support arm 3, improving the fixture's versatility. The synergistic effect of these three components effectively solves the positioning accuracy problem in flange hole machining, significantly improving machining efficiency and quality.

[0036] As a preferred example of this application, the two ends of the lead screw 13 are rotatably mounted on the inner wall of the slide groove 4 through bearing seats, and the bearing seats are integrally formed with the inner wall of the support arm 3. This structural design ensures the stability of the rotation of the lead screw 13 and improves the transmission accuracy.

[0037] As a preferred example of this application, the support 1 has an integrally formed mounting base 11 at its bottom. The mounting base 11 has several sets of mounting holes 12 equidistantly arranged around it. The tooling can be firmly installed on the worktable of the processing equipment through the mounting holes 12, thus ensuring the stability of the processing process.

[0038] As a preferred example of this application, the cross-section of the annular groove 9 is T-shaped, and the cross-section of the arc-shaped slider 10 is a matching T-shape. This structural design can effectively prevent the arc-shaped slider 10 from coming out of the annular groove 9, ensuring the reliability of the radial fine adjustment of the support arm 3.

[0039] As a preferred example of this application, the bearing used to connect the screw 8 and the arc-shaped slider 10 is a deep groove ball bearing, which can withstand both radial and axial loads simultaneously, ensuring the flexibility and stability of the screw 8 rotation.

[0040] As a preferred example of this application, the scale 16 is distributed in a 360-degree ring around the center of the support 1, and the angular interval between adjacent scale lines is 1 degree. This design can meet the accuracy requirements of most flange hole machining, and at the same time facilitates operators to quickly read the angle value.

[0041] Working Principle: First, place the flange on support 1 and start the servo motor 6. Its output shaft drives the lead screw 13 to rotate. Since the lead screw 13 and the threaded hole 15 in the slider 14 form a transmission pair, according to the principle of screw transmission, the slider 14 will move linearly in the groove 4, thereby driving the clamping block 5 to move synchronously. The clamping blocks 5 on the three sets of support arms 3 tighten simultaneously until the flange is centered and clamped, achieving stable clamping of flanges of different diameters and ensuring that the flange will not be displaced during processing. When it is necessary to adjust the angle of the flange, rotate the movable seat 2. The movable seat 2 is connected to the support 1 through the damping shaft. When rotating, the arrow at the bottom of the pointer plate 7 rotates synchronously with the support arm 3. The scale 16 on the outer wall of the support 1 is distributed in a 360-degree ring with the center as the center, and the adjacent scale lines are spaced 1 degree apart. The operator can accurately determine the rotation angle of the flange by observing the value of the scale 16 pointed to by the arrow at the bottom of the pointer plate 7. After adjusting to the target angle, the damping shaft, with its special characteristics, will... The mechanism ensures the stable positioning of the movable seat 2, preventing angular deviation due to vibration or other factors during machining and providing an accurate angular reference for hole machining. By rotating the screw 8, which engages with the screw hole 17 in the pointer plate 7, axial movement occurs according to the principle of thread transmission. Simultaneously, the bottom of the screw 8 is connected to the arc-shaped slider 10 via a deep groove ball bearing, allowing it to rotate freely during axial movement. The arc-shaped slider 10 slides within the annular groove 9. As the screw 8 rotates, the pointer plate 7 moves along the screw axis, clamping the movable seat 2 and preventing it from rotating during machining, thus ensuring the accuracy of hole machining.

[0042] 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 simple positioning fixture for machining flange hole positions, characterized in that, The device includes a support (1), a movable seat (2), and a clamping block (5). The movable seat (2) is rotatably mounted on the top center of the support (1) via a pivot. The outer wall of the movable seat (2) is integrally formed with support arms (3), and three sets of support arms (3) are equidistantly distributed on the outer wall of the movable seat (2). A sliding groove (4) is provided inside the support arm (3). The bottom of the clamping block (5) is integrally formed with a slider (14), and the slider (14) is slidably mounted in the sliding groove (4). A pointer plate (7) is fixedly installed on the outside of the support arm (3). An annular groove (9) is provided around the outer wall of the support (1). Three sets of arc-shaped sliders (10) are slidably installed in the annular groove (9). A screw (8) is movably installed on the outer wall of the arc-shaped slider (10) through a bearing. A screw hole (17) is provided through the pointer plate (7). The screw (8) passes through the screw hole (17) and the screw (8) is threadedly engaged with the screw hole (17).

2. The simplified positioning fixture for machining flange holes according to claim 1, characterized in that, A lead screw (13) is rotatably installed in the slide groove (4), and a threaded hole (15) is provided through the slider (14). The lead screw (13) passes through the threaded hole (15) and forms a transmission pair.

3. The simplified positioning fixture for machining flange holes according to claim 2, characterized in that, A servo motor (6) is fixedly installed on the outer wall of the pointer plate (7). The output shaft of the servo motor (6) passes through the pointer plate (7) and is connected to the lead screw (13) for transmission.

4. The simplified positioning fixture for machining flange holes according to claim 1, characterized in that, The support (1) has a scale (16) on its outer wall and below the annular groove (9), and the arrow at the bottom of the pointer plate (7) points to the scale (16).

5. The simplified positioning fixture for machining flange holes according to claim 1, characterized in that, The support (1) has an integrally formed mounting base (11) at the bottom, and the mounting base (11) has several sets of mounting holes (12) equidistantly arranged around it.

6. The simplified positioning fixture for machining flange holes according to claim 1, characterized in that, The pivot connecting the movable seat (2) and the support (1) is a damping pivot, and the movable seat (2) and the support (1) form a positionable rotatable connection through the damping pivot.

7. The simplified positioning fixture for machining flange holes according to claim 1, characterized in that, The cross-section of the annular groove (9) is T-shaped, and the cross-section of the arc-shaped slider (10) is T-shaped to match its annular groove (9).

8. The simplified positioning fixture for machining flange holes according to claim 1, characterized in that, The bearing used to connect the arc-shaped slider (10) and the screw (8) is a deep groove ball bearing, and the screw (8) is rotatably connected to the arc-shaped slider (10) through the deep groove ball bearing.

9. A simple positioning fixture for machining flange holes according to claim 4, characterized in that, The scale (16) is distributed in a 360-degree ring around the center of the support (1), and the angular interval between adjacent scale lines is 1 degree.

10. A simple positioning fixture for machining flange holes according to claim 2, characterized in that, The two ends of the lead screw (13) are rotatably mounted on the inner wall of the slide groove (4) through bearing seats, and the bearing seats are integrally formed with the inner wall of the support arm (3).

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