Flange drilling positioning fixture

Abstract

The utility model discloses a flange drilling positioning fixture, including mounting panel and bottom plate, the bottom plate is in the position below mounting panel, the mounting panel top is equipped with positioning assembly, positioning assembly includes the electric push rod no.

Description

Technical Field

[0001] This utility model relates to the field of flange processing technology, specifically a flange drilling positioning fixture. Background Technology

[0002] Flanges are widely used as an important connecting component in many industrial fields such as machinery manufacturing, petrochemicals, and shipbuilding, for connecting pipes, valves, and equipment. Drilling is a crucial step in the flange manufacturing process.

[0003] A search revealed a utility model patent with Chinese patent publication number CN216442056U, which discloses a grooved pipe flange drilling positioning fixture, including a processing table. A rectangular frame is fixedly connected to the upper side wall of the processing table, and a cavity is opened in the rectangular frame. Two worm gears are symmetrically installed in the cavity. Two bevel gears are symmetrically fixedly sleeved on the outer walls of the two worm gears. Two worm gears are symmetrically installed between the two worm gears. A fixing plate that is movably sleeved and fixedly connected in the cavity is provided on the outer walls of the two worm gears.

[0004] The above-mentioned device uses four clamping plates to clamp and fix the flange. However, in addition to the standard disc shape, there are also some irregular flanges. The four clamping plates of the above-mentioned device move synchronously and cannot adapt to the fixing of irregular flanges, so there is room for improvement. Utility Model Content

[0005] The purpose of this utility model is to provide a flange drilling positioning fixture to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flange drilling positioning fixture, comprising a mounting plate and a base plate, the base plate being located below the mounting plate, a positioning assembly being mounted on the top of the mounting plate, the positioning assembly comprising an electric push rod fixedly mounted inside the mounting plate, the output end of the electric push rod being fixedly connected to a horizontally arranged connecting plate, four telescopic rods being hinged inside the connecting plate, four equally spaced limiting grooves being formed inside the mounting plate, each of the four limiting grooves having a sliding abutment plate inside, one bottom end of each of the four telescopic rods being hinged to the top of the four abutment plates, each of the four telescopic rods having a spring sleeved on its exterior, the two ends of the four springs being fixedly connected to the hinge joints at both ends of the four telescopic rods, and a reinforcing assembly being mounted on the top of the connecting plate, the reinforcing assembly comprising a support frame and two reinforcing columns.

[0007] Precise positioning is achieved by utilizing the geometric features of the inner ring of the flange, which can meet the positioning purpose of flanges of different shapes, thus greatly improving the adaptability of the fixture. Activating the electric push rod one inside the mounting plate causes the connecting plate to move downwards. Because the abutment plate is slidably connected inside the limiting groove, it can only move horizontally. The connecting plate, through four springs, pushes the four abutment plates away from each other synchronously. Under the push of the four abutment plates, the flange is fixed in the center of the mounting plate. The connecting plate continues to descend. As the elastic potential energy of the springs is overcome and shortened, the connecting plate can continue to move downwards. The connecting plate, through the support frame, drives two reinforcing columns to press against the flange, thus providing secondary reinforcement and making the flange more stable.

[0008] As a further preferred embodiment of this technical solution, the support frame is fixedly connected to the top outer wall of the connecting plate, and the two reinforcing columns are slidably sleeved on the outside of the support frame, and the two reinforcing columns are symmetrically arranged.

[0009] As a further preferred embodiment of this technical solution, a chip removal assembly is installed between the mounting plate and the base plate. The chip removal assembly includes a hinge seat fixedly connected to one side of the top outer wall of the base plate. The mounting plate is hinged to the outside of the hinge seat. A support frame is placed on the top of the mounting plate. The support frame is located at the bottom of the mounting plate. Two guide grooves are opened inside the support frame.

[0010] As a further preferred embodiment of this technical solution, an extension column is fixedly connected to the outer walls of both ends of the mounting plate. The two extension columns are respectively attached to the inner walls of the bottom of the two guide grooves. An electric push rod II is fixedly installed on one side of the outer wall of the mounting plate. The output end of the electric push rod II is fixedly connected to the support frame. Two stabilizing rods are fixedly connected to one side of the outer wall of the support frame. The two stabilizing rods are slidably inserted into the bottom plate.

[0011] After the work is completed, the electric push rod is activated to move the support frame away from the mounting plate. Then, the extension column on the outside of the mounting plate contacts the inclined surface of the guide groove. Under the action of gravity, the mounting plate will flip down along the hinge seat, thus presenting an inclined state. The debris left on it will slide down the slope, thereby achieving rapid chip removal and preventing these debris from affecting the next processing.

[0012] As a further preferred embodiment of this technical solution, the guide groove consists of two horizontal grooves and one inclined groove, with the inclined groove positioned in the middle. The bottom inner wall of the inclined groove of the guide groove is provided with several equidistant ridges.

[0013] As a further preferred embodiment of this technical solution, the mounting plate has several equally spaced clearance grooves inside.

[0014] As a further preferred embodiment of this technical solution, a rubber pad is provided on the outer wall of each of the four abutment plates on the side away from each other.

[0015] This utility model provides a flange drilling positioning fixture, which has the following advantages:

[0016] (1) This utility model achieves precise positioning by setting a positioning component and utilizing the geometric features of the inner ring of the flange, which can meet the positioning purpose of flanges of different shapes, thereby greatly improving the adaptability of the fixture. When the electric push rod 1 inside the mounting plate is activated, the output end of the electric push rod 1 drives the connecting plate to move downward. Because the abutment plate is slidably connected inside the limiting groove, it can only move in the horizontal direction. The connecting plate can push the four abutment plates to move away from each other synchronously through the four springs. Under the push of the four abutment plates, the flange will be fixed in the middle position of the mounting plate. The connecting plate continues to have a downward trend. As the elastic potential energy of the spring is overcome and shortened, the connecting plate can continue to move downward. The connecting plate drives the two reinforcing columns to squeeze the flange through the support frame, and the flange will be reinforced a second time, making the flange more stable.

[0017] (2) By setting up a chip removal component, after the work is completed, the electric push rod is started to move the support frame away from the mounting plate. Then the extension column outside the mounting plate contacts the inclined surface of the guide groove. Under the action of gravity, the mounting plate will flip down along the hinge seat, thus presenting an inclined state. The chips left on it will slide down the slope, thereby achieving rapid chip removal and avoiding these chips from affecting the next processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0020] Figure 3 This is an enlarged structural schematic diagram of the positioning component of this utility model;

[0021] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] In the diagram: 1. Mounting plate; 2. Clearance groove; 3. Base plate; 4. Positioning assembly; 5. Chip removal assembly; 401. Limiting groove; 402. Abutment plate; 403. Telescopic rod; 404. Spring; 405. Connecting plate; 406. Electric push rod one; 407. Support frame; 408. Reinforcing column; 409. Rubber pad; 501. Hinge seat; 502. Support frame; 503. Guide groove; 504. Extension column; 505. Electric push rod two; 506. Stabilizer bar; 507. Protruding strip. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figure 2 and Figure 4 As shown, in this embodiment, a flange drilling positioning fixture includes a mounting plate 1 and a base plate 3. The base plate 3 is located below the mounting plate 1. A positioning component 4 is installed on the top of the mounting plate 1. The positioning component 4 includes an electric push rod 406 fixedly installed inside the mounting plate 1. The output end of the electric push rod 406 is fixedly connected to a horizontally arranged connecting plate 405. Four telescopic rods 403 are hinged inside the connecting plate 405. Four equally spaced limiting grooves 401 are opened inside the mounting plate 1. An abutment plate 402 is slidably connected inside each of the four limiting grooves 401. One bottom end of each of the four telescopic rods 403 is hinged to the top of the four abutment plates 402. A spring 404 is sleeved on the outside of each of the four telescopic rods 403. The two ends of the four springs 404 are fixedly connected to the hinge joints at both ends of the four telescopic rods 403. A reinforcing component is installed on the top of the connecting plate 405. The reinforcing component includes a support frame 407 and two reinforcing columns 408.

[0025] The support frame 407 is fixedly connected to the top outer wall of the connecting plate 405, and the two reinforcing columns 408 are slidably sleeved on the outside of the support frame 407, and the two reinforcing columns 408 are symmetrically arranged.

[0026] The electric push rod 406 inside the mounting plate 1 is activated. The output end of the electric push rod 406 drives the connecting plate 405 to move downward. Because the abutment plate 402 is slidably connected inside the limiting groove 401, it can only move horizontally. The connecting plate 405 can push the four abutment plates 402 to move away from each other synchronously through the four springs 404. Under the push of the four abutment plates 402, the flange will be fixed in the center of the mounting plate 1. The connecting plate 405 continues to have a downward tendency, and with the elastic potential of the springs 404... The shortening can be overcome, and the connecting plate 405 can continue to move downward. The connecting plate 405 drives the two reinforcing columns 408 to squeeze the flange through the support frame 407, and the flange will be reinforced a second time, making the flange more stable. Even if the flange is processed with irregular inner ring openings such as rectangular or elliptical, when the abutment plate 402 contacts the narrow edge of the inner ring opening, as mentioned above, because the telescopic rod 403 can be shortened by force, the connecting plate 405 can continue to move downward, which can ensure that the other abutment plates 402 can also squeeze the wide edge of the inner ring opening, thereby achieving positioning.

[0027] like Figure 2 and Figure 4As shown, a chip removal assembly 5 is installed between the mounting plate 1 and the base plate 3. The chip removal assembly 5 includes a hinge seat 501 fixedly connected to one side of the top outer wall of the base plate 3. The mounting plate 1 is hinged to the outside of the hinge seat 501. A support frame 502 is placed on the top of the mounting plate 1. The support frame 502 is located at the bottom of the mounting plate 1. Two guide grooves 503 are opened inside the support frame 502.

[0028] An extension column 504 is fixedly connected to the outer wall of both ends of the mounting plate 1. The two extension columns 504 are respectively attached to the inner wall of the bottom of the two guide grooves 503. An electric push rod 505 is fixedly installed on one side of the outer wall of the mounting plate 1. The output end of the electric push rod 505 is fixedly connected to the support frame 502. Two stabilizing rods 506 are fixedly connected to one side of the outer wall of the support frame 502. The two stabilizing rods 506 are slidably inserted into the bottom plate 3.

[0029] The guide groove 503 consists of two horizontal grooves and one inclined groove, with the inclined groove located in the middle. The bottom inner wall of the inclined groove of the guide groove 503 is provided with several equally spaced protrusions 507.

[0030] After the work is completed, the electric push rod 505 is activated to drive the support frame 502 away from the mounting plate 1. Then, the extension column 504 on the outside of the mounting plate 1 contacts the inclined surface of the guide groove 503. Under the action of gravity, the mounting plate 1 will flip down along the hinge seat 501, thus presenting an inclined state. The debris left on it will slide down the slope, thereby achieving rapid chip removal and preventing these debris from affecting the next processing. When the extension column 504 slides along the inclined surface of the guide groove 503, the movable end of the mounting plate 1 will continuously vibrate due to the presence of the protrusion 507, which helps to improve the chip removal effect.

[0031] like Figure 1 and Figure 2 As shown, the mounting plate 1 has several equally spaced clearance slots 2 inside, which allows the drill bit to pass through the clearance slots 2 and move downwards, which helps to ensure the drilling quality. It should be noted that the distribution of the clearance slots 2 is not fixed and can be set according to the production situation.

[0032] like Figure 3 As shown, a rubber pad 409 is provided on the outer wall of each of the four abutment plates 402 on the side away from each other. When the abutment plates 402 are pressing the inner ring of the flange, the rubber pads 409 can play a protective role, preventing the flange or abutment plates 402 from being damaged by pressure. The outer surface of the rubber pads 409 is provided with lubricant, which can ensure that when fixing the flange with a different ring, the abutment plates 402 will not be unable to push the wide edge of the ring due to the friction between the other two abutment plates 402 and the narrow edge of the inner ring.

[0033] This utility model provides a flange drilling positioning fixture, the specific working principle of which is as follows:

[0034] When the device is in operation, the flange to be drilled is placed on top of the mounting plate 1, with the inner ring of the flange fitted over the positioning assembly 4. The electric push rod 406 inside the mounting plate 1 is activated. The output end of the electric push rod 406 drives the connecting plate 405 downwards. Because the abutment plate 402 is slidably connected inside the limiting groove 401, it can only move horizontally. The connecting plate 405, through four springs 404, pushes the four abutment plates 402 away from each other synchronously. Under the push of the four abutment plates 402, the flange is fixed in the center of the mounting plate 1. 5. The downward trend continues. As the elastic potential energy of the spring 404 is overcome and shortened, the connecting plate 405 can continue to move downward. The connecting plate 405 drives the two reinforcing columns 408 to press the flange through the support frame 407, and the flange will be reinforced a second time, making the flange more stable. Even if the flange is processed with irregular inner ring openings such as rectangular or elliptical, when the abutment plate 402 contacts the narrow edge of the inner ring opening, as mentioned above, because the telescopic rod 403 can shorten under force, the connecting plate 405 can continue to move downward, which can ensure that the other abutment plates 402 can also press the wide edge of the inner ring opening, thereby achieving positioning.

[0035] After the work is completed, the electric push rod 505 is activated to drive the support frame 502 away from the mounting plate 1. Then, the extension column 504 on the outside of the mounting plate 1 contacts the inclined surface of the guide groove 503. Under the action of gravity, the mounting plate 1 will flip down along the hinge seat 501, thus presenting an inclined state. The debris left on it will slide down the slope, thereby achieving rapid chip removal and preventing these debris from affecting the next processing. When the extension column 504 slides along the inclined surface of the guide groove 503, the movable end of the mounting plate 1 will continuously vibrate due to the presence of the protrusion 507, which helps to improve the chip removal effect. After the work is completed, the electric push rod 505 is activated to return to the original position, thereby achieving reset.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flange drilling positioning fixture, comprising a mounting plate (1) and a base plate (3), characterized in that: The base plate (3) is located below the mounting plate (1). A positioning component (4) is installed on the top of the mounting plate (1). The positioning component (4) includes an electric push rod (406) fixedly installed inside the mounting plate (1). The output end of the electric push rod (406) is fixedly connected to a horizontally arranged connecting plate (405). Four telescopic rods (403) are hinged inside the connecting plate (405). The mounting plate (1) has four equally spaced limiting grooves (401). Each slot (401) has a sliding connection to an abutment plate (402). The bottom ends of the four telescopic rods (403) are hinged to the top of the four abutment plates (402). Each of the four telescopic rods (403) is fitted with a spring (404). The two ends of the four springs (404) are fixedly connected to the hinge joints at both ends of the four telescopic rods (403). The top of the connecting plate (405) is equipped with a reinforcing component, which includes a support frame (407) and two reinforcing columns (408).

2. The flange drilling positioning fixture according to claim 1, characterized in that: The support frame (407) is fixedly connected to the top outer wall of the connecting plate (405), and the two reinforcing columns (408) are slidably sleeved on the outside of the support frame (407), and the two reinforcing columns (408) are symmetrically arranged.

3. The flange drilling positioning fixture according to claim 1, characterized in that: A chip removal assembly (5) is installed between the mounting plate (1) and the base plate (3). The chip removal assembly (5) includes a hinge seat (501) fixedly connected to one side of the top outer wall of the base plate (3). The mounting plate (1) is hinged to the outside of the hinge seat (501). A support frame (502) is placed on the top of the mounting plate (1). The support frame (502) is located at the bottom of the mounting plate (1). Two guide grooves (503) are opened inside the support frame (502).

4. A flange drilling positioning fixture according to claim 3, characterized in that: An extension column (504) is fixedly connected to the outer wall of both ends of the mounting plate (1). The two extension columns (504) are respectively attached to the inner wall of the bottom of the two guide grooves (503). An electric push rod (505) is fixedly installed on one side of the outer wall of the mounting plate (1). The output end of the electric push rod (505) is fixedly connected to the support frame (502). Two stabilizing rods (506) are fixedly connected to one side of the outer wall of the support frame (502). The two stabilizing rods (506) are slidably inserted into the bottom plate (3).

5. A flange drilling positioning fixture according to claim 3, characterized in that: The guide groove (503) consists of two horizontal grooves and one inclined groove, with the inclined groove located in the middle. The bottom inner wall of the inclined groove of the guide groove (503) is provided with several equidistant protrusions (507).

6. A flange drilling positioning fixture according to claim 1, characterized in that: The mounting plate (1) has several equally spaced clearance slots (2) inside.

7. A flange drilling positioning fixture according to claim 1, characterized in that: A rubber pad (409) is provided on the outer wall of each of the four abutment plates (402) on the side away from each other.

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