Machining tool facilitating flange replacement

Abstract

The machining tool comprises a base, a rotating disc, a driving motor, a plurality of adjusting assemblies and a plurality of position limiting blocks, a mounting groove is formed in the middle of the base, the driving motor is mounted in the mounting groove, the driving motor is fixedly connected with the rotating disc, and the adjusting assemblies are fixedly connected with the rotating disc. A plurality of adjusting grooves are formed in the rotating disc, the adjusting assemblies are movably connected into the adjusting grooves, the position limiting blocks are located on the rotating disc, and the position limiting blocks are fixedly connected with the adjusting assemblies; the flange is fixed in the mode that the multiple limiting blocks are fixed together, in the mode, when the flange is replaced, fixing of the flange can be relieved only by making contact with the individual limiting blocks, and it can be guaranteed that the circle center of the flange and the circle center of the rotary disc are uniform after the flange is replaced by keeping the positions of the other limiting blocks unchanged; and the step that the flange needs to be repeatedly positioned in a traditional replacement mode is simplified, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of flange processing technology, and in particular to a processing fixture that facilitates flange replacement. Background Technology

[0002] Flanges are a common type of mechanical connector, typically used for pipe connections, and are particularly widely used in high-pressure pipe connections. The manufacturing process of flanges usually involves fixing a disc on a workbench and then drilling, grinding, polishing, and other processes to form the common flange.

[0003] In the existing flange processing process, the flange needs to be fixed first. However, when replacing the flange after processing, the flange center positioning step needs to be repeated to avoid misalignment between the flange center and the center of the processing tooling. Some flanges are large in size and heavy in weight, making it impossible to quickly position the flange, which wastes a lot of manpower and resources.

[0004] In view of this, there is an urgent need for a machining tool that facilitates flange replacement and solves the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a machining tooling that facilitates flange replacement and solves the above-mentioned problems.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a machining fixture for easy flange replacement, comprising:

[0007] The base includes a turntable, a drive motor, multiple adjustment components, and multiple position limiting blocks. The base has a mounting slot in the middle, the drive motor is installed in the mounting slot and is fixedly connected to the turntable, the turntable has multiple adjustment slots, multiple adjustment components are movably connected in the adjustment slots, and the position limiting blocks are located on the turntable and are fixedly connected to the adjustment components.

[0008] Preferably, the adjustment assembly includes a screw, a slider, and an adjustment handle. The slider is slidably connected in the adjustment groove. One end of the screw is fitted with the side wall of the adjustment groove near the center of the turntable with a clearance fit. The other end passes through the slider and the side wall of the adjustment groove away from the center of the turntable and is fixedly connected to the adjustment handle. The slider and the screw are threadedly connected.

[0009] Preferably, the position limiting block is trapezoidal, which is fixedly connected to the slider, and the side wall of the position limiting block at the step is provided with anti-slip texture.

[0010] Preferably, the protruding portion of the position limiting block is provided with a threaded through hole, and at least one position limiting block is provided with a locking rod that is threadedly connected to the threaded through hole. The locking rod is provided with a locking head that is fixedly connected to the end near the center of the turntable, and a locking handle that is detachably connected to the end away from the center of the turntable.

[0011] Preferably, the top surface of the base is provided with multiple recesses, which are arranged in a ring, and auxiliary balls that intermittently cooperate with the recesses are provided inside the recesses.

[0012] Preferably, the turntable has a positioning groove at its circular part, a positioning protrusion fixedly connected thereto inside the positioning groove, and a positioning component detachably connected thereto on the positioning protrusion.

[0013] Preferably, the positioning assembly includes a positioning sleeve, a positioning rod, and a locking pin. The positioning sleeve is fitted onto the positioning protrusion. The positioning rod passes through the upper end of the curved side wall of the positioning sleeve and is clearance-fitted with it. One end of the locking pin passes through the top surface of the positioning sleeve and contacts the positioning rod. The locking pin is threadedly connected to the positioning sleeve.

[0014] Preferably, the positioning rod is equipped with marking scales.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The flange is fixed by using multiple limit blocks. This method allows for quick initial fixing of the flange when changing it, followed by fine-tuning of the flange through the cooperation of the positioning component and the locking rod. This ensures that the center of the flange overlaps with the center of the turntable, avoiding large machining deviations caused by misalignment during flange processing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a machining tooling that facilitates flange replacement;

[0018] Figure 2 This is a schematic diagram of the base structure in this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the positioning component in an embodiment of this utility model.

[0020] In the diagram: 1. Base; 10. Mounting groove; 11. Recessed hole; 110. Auxiliary ball bearing; 2. Turntable; 20. Adjustment groove; 21. Positioning groove; 210. Positioning protrusion; 3. Drive motor; 4. Adjustment assembly; 40. Screw; 41. Slider; 42. Adjustment handle; 5. Position limiting block; 50. Anti-slip texture; 51. Threaded through hole; 510. Locking rod; 511. Locking head; 512. Locking handle; 6. Positioning assembly; 60. Positioning sleeve; 61. Positioning rod; 62. Locking pin. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see the appendix Figure 1-3 A machining tooling for easy flange replacement, comprising:

[0023] The system comprises a base 1, a turntable 2, a drive motor 3, multiple adjustment components 4, and multiple position limiting blocks 5. The base 1 has a mounting groove 10 in the middle, the drive motor 3 is installed in the mounting groove 10 and is fixedly connected to the turntable 2, the turntable 2 has multiple adjustment grooves 20, the multiple adjustment components 4 are movably connected in the adjustment grooves 20, and the position limiting blocks 5 are located on the turntable 2 and are fixedly connected to the adjustment components 4.

[0024] The turntable 2 is driven by a drive motor 3 connected to the base 1, thereby rotating the flange for processing. Multiple position limiting blocks 5 and multiple adjusting components 4 are used to fix the flange. This method allows for quick initial positioning of the flange during replacement. Specifically, the position limiting blocks 5 are adjusted so that the diameter of the circle they form is slightly larger than the flange diameter. The diameter difference can be adjusted according to the actual situation. If the flange diameter is small and the flange swings little or not at all during replacement, the diameter difference can be controlled within a small range, such as 1mm or 2mm, as long as it does not affect the replacement process. If the flange diameter is large and the replacement process even requires crane lifting, the diameter difference can be controlled within a larger range, such as 10mm or even larger, to ensure that the flange is not bumped during lifting. Under these conditions, the position of the position limiting blocks 5 does not need any adjustment each time the flange is replaced; simply ensuring that the flange is firmly placed on the position limiting blocks 5 is sufficient to ensure initial flange fixation.

[0025] Specifically, the adjustment assembly 4 includes a screw 40, a slider 41, and an adjustment handle 42. The slider 41 is slidably connected in the adjustment groove 20. One end of the screw 40 is fitted with a clearance fit on the side wall of the adjustment groove 20 near the center of the turntable 2, and the other end passes through the slider 41 and the side wall of the adjustment groove 20 away from the center of the turntable 2 and is fixedly connected to the adjustment handle 42. The slider 41 is threadedly connected to the screw 40.

[0026] Specifically, the position limiting block 5 is trapezoidal and is fixedly connected to the slider 41, and the side wall of the position limiting block 5 at the step is provided with anti-slip texture 50;

[0027] In this utility model, the screw 40 and the slider 41 are connected by a thread for adjustment. When the screw 40 is rotated in the adjustment groove 20 by the adjustment handle 42, the slider 41 cannot rotate because the rotation is restricted by the adjustment groove 20. Therefore, the slider 41, together with the position limiting block 5 fixedly connected to it, will move about the screw 40 as the axis, thereby completing the displacement adjustment of multiple position limiting blocks 5.

[0028] Considering that there is a large gap between the position limiting block 5 and the flange when fixing the flange by simply adjusting the displacement of the position limiting block 5 for the screw 40, although the flange processing allows for a certain error, further position locking of the flange is required for more precise control of the processing quality. Specifically, the protruding part of the position limiting block 5 is provided with a threaded through hole 51, and at least one of the position limiting blocks 5 is provided with a locking rod 510 threadedly connected to the threaded through hole 51. The locking rod 51 has a locking head 511 fixedly connected to the end near the center of the turntable 2, and a locking handle 512 detachably connected to the end away from the center of the turntable 2. After the flange is initially fixed in position, fine adjustment is required to ensure that the center of the flange coincides with the center of the turntable 2. Therefore, a threaded through hole 51 is provided on the position limiting block 5, and a locking rod 51 threadedly connected to a portion of the threaded through hole 51 of the position limiting block 5 is provided. By adjusting the locking rod 51, the locking head 511 is driven to contact the flange curved surface, and the flange is fixed.

[0029] Considering that the turntable 2 has a large diameter and is made of metal, it is heavy in practical applications. The drive motor 3 not only needs to provide driving force for the rotation of the turntable 2, but also needs to support the turntable 2 to ensure that there is a gap between the turntable 2 and the base 1. Under this condition, the drive motor 3 has a large workload and is prone to failure. Therefore, other methods are needed to assist the drive motor 3. Specifically, the top surface of the base 1 is provided with a plurality of recesses 11, which are arranged in a ring. The recesses 11 are provided with auxiliary balls 110 that are intermittently engaged with them. The recesses 11 and auxiliary balls 110 provided on the base 1 can share the weight of the turntable 2 without affecting the rotation of the turntable 2.

[0030] Considering that the center of the flange needs to be checked and adjusted each time the flange is replaced for processing, in order to ensure that the center of the flange overlaps with the center of the turntable 2, specifically, the turntable 2 is provided with a positioning groove 21 at its circular part, and a positioning protrusion 210 fixedly connected to it is provided in the positioning groove 21, and a positioning component 6 detachably connected to it is provided on the positioning protrusion 210.

[0031] Specifically, the positioning component 6 includes a positioning sleeve 60, a positioning rod 61, and a locking pin 62. The positioning sleeve 60 is sleeved on the positioning protrusion 210. The positioning rod 61 passes through the upper end of the curved side wall of the positioning sleeve 60 and is clearance-fitted with it. One end of the locking pin 62 passes through the top surface of the positioning sleeve 60 and contacts the positioning rod 61. The locking pin 62 is threadedly connected to the positioning sleeve 60.

[0032] Specifically, the positioning rod 61 is provided with marking scale.

[0033] When changing flanges of different specifications and positioning is required, first adjust the positioning component 6 according to the inner diameter of the flange, loosen the locking pin 62, and adjust the relative position of the positioning rod 61 and the positioning sleeve 60 according to the markings on the positioning rod 61 so that the longer end of the positioning rod 61 is the same as the inner diameter of the flange. Then, put the sleeve 60 on the positioning protrusion 210 in the positioning groove 21, and then rotate it one revolution around the positioning protrusion 210. During this process, the process of the positioning rod 61 rotating along the inner wall of the flange is the initial position adjustment process of the flange. After the initial position of the flange is determined, adjust the position limiting block 5 in sequence to make it contact the outer wall of the flange to complete the positioning of the flange.

[0034] When replacing a flange of the same specification, after the flange is placed on the position limiting block 5, the pre-adjusted positioning component 6 is used to rotate one revolution around the positioning protrusion 210. If there is a noticeable obstruction during the contact with the inner wall of the flange, it means that the flange placement position has deviated from the predetermined position. The flange position can be adjusted at that point. In order to avoid the positioning rod 61 scratching the inner wall of the flange during the calibration process, the side of the positioning rod 61 that contacts the flange is set to be arc-shaped.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A machining fixture for easy flange replacement, characterized in that, include: The base (1), turntable (2), drive motor (3), multiple adjustment components (4), multiple position limiting blocks (5) and positioning components (6) are provided. The base (1) has a mounting groove (10) in the middle position. The drive motor (3) is installed in the mounting groove (10) and is fixedly connected to the turntable (2). The turntable (2) has multiple adjustment grooves (20). Multiple adjustment components (4) are movably connected in the adjustment grooves (20). The position limiting blocks (5) are located on the turntable (2) and are fixedly connected to the adjustment components (4). The adjustment assembly (4) includes a screw (40), a slider (41), and an adjustment handle (42). The slider (41) is slidably connected in the adjustment groove (20). One end of the screw (40) is fitted with a clearance fit on the side wall of the adjustment groove (20) near the center of the turntable (2), and the other end passes through the slider (41) and the side wall of the adjustment groove (20) away from the center of the turntable (2) and is fixedly connected to the adjustment handle (42). The slider (41) is threadedly connected to the screw (40). The position limiting block (5) is trapezoidal and is fixedly connected to the slider (41). The side wall of the position limiting block (5) at the step is provided with anti-slip texture (50).

2. The machining fixture for easy flange replacement according to claim 1, characterized in that: The protruding portion of the position limiting block (5) is provided with a threaded through hole (51), wherein at least one of the position limiting blocks (5) is provided with a locking rod (510) threadedly connected to the threaded through hole (51), the locking rod (510) is provided with a locking head (511) fixedly connected to the center of the turntable (2) at one end, and a locking handle (512) detachably connected to the locking rod (510) away from the center of the turntable (2) at one end.

3. The machining fixture for easy flange replacement according to claim 1, characterized in that: The base (1) has a plurality of recesses (11) on its top surface. The plurality of recesses (11) are arranged in a ring, and auxiliary balls (110) that intermittently cooperate with the recesses (11) are provided inside the recesses (11).

4. The machining fixture for easy flange replacement according to claim 1, characterized in that: The turntable (2) has a positioning groove (21) at its circular part, and a positioning protrusion (210) is fixedly connected to the positioning groove (21).

5. The machining fixture for easy flange replacement according to claim 4, characterized in that: The positioning component (6) includes a positioning sleeve (60), a positioning rod (61), and a locking pin (62). The positioning sleeve (60) is sleeved on the positioning protrusion (210). The positioning rod (61) passes through the upper end of the curved side wall of the positioning sleeve (60) and is clearance-fitted with it. One end of the locking pin (62) passes through the top surface of the positioning sleeve (60) and contacts the positioning rod (61). The locking pin (62) is threadedly connected to the positioning sleeve (60).

6. The machining fixture for easy flange replacement according to claim 5, characterized in that: The positioning rod (61) is marked with scales, and the end of the positioning rod (61) that contacts the flange is arc-shaped.

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