Linkage locking flange machining tool

Abstract

The utility model discloses a linkage locking flange machining tool which comprises a servo motor, the output end of the servo motor is fixedly connected with a transmission shaft, and the transmission shaft is sequentially and rotationally connected with a first fixing plate, a supporting plate and a second fixing plate from top to bottom through sealing bearings. According to the linkage locking flange machining tool, the first limiting plate, the first limiting groove, the first sliding groove, the first abutting rod and the first limiting rod are matched, the inner diameter of a flange to be machined is automatically abutted and fixed, and the problem that in the actual using process, the inner diameter of the flange to be machined cannot be adjusted is solved. When a traditional flange machining tool is used for fixing a to-be-machined flange, a worker possibly needs to be matched with a plurality of fixing bolts through a simple locking structure to stably fix the to-be-machined flange on the flange machining tool, and the fixing mode wastes much time, so that the preparation time before machining is too long, and the machining efficiency is greatly improved. And therefore, the processing efficiency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of flange processing technology, specifically to a linkage locking flange processing tooling. Background Technology

[0002] Flanges are parts that connect shafts to each other, used for connecting pipe ends, and also used on equipment inlets and outlets for connecting two pieces of equipment. During the flange production process, flange processing fixtures are needed to fix the flanges to be processed.

[0003] In traditional flange processing fixtures, workers place the flange to be processed onto the fixture for fixation, and then use other tools to process the flange.

[0004] However, in actual use, traditional flange processing fixtures may require workers to use a simple locking structure and multiple fixing bolts to stably fix the flange to the flange processing fixture when fixing it. This fixing method is very time-consuming, resulting in excessive preparation time before processing and thus reducing processing efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a linkage locking flange processing fixture, which solves the problem that in actual use, traditional flange processing fixtures may require workers to use a simple locking structure and multiple fixing bolts to stably fix the flange to be processed on the flange processing fixture. This fixing method is very time-consuming, resulting in excessive preparation time before processing and thus reducing processing efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a linkage locking flange processing fixture, comprising a servo motor, a drive shaft fixedly connected to the output end of the servo motor, and a first fixed plate, a support plate, and a second fixed plate rotatably connected from top to bottom via sealed bearings. The first fixed plate is fixedly connected to the top of the support plate, the support plate is fixedly connected to the top of the second fixed plate, the bottom of the second fixed plate is fixedly connected to the outer wall of the servo motor, and a support leg is fixedly connected to the side of the bottom of the second fixed plate away from the servo motor. The linkage locking flange processing fixture also includes a clamping device, which is disposed on the outer wall of the first fixed plate; a fixing device is disposed above the second fixed plate; and a pressing device is disposed above the fixing device. The clamping device clamps the inner wall of the flange to be processed, the fixing device fixes the outer wall of the flange to be processed, and the pressing device presses the flange to be processed against the top of the second fixed plate.

[0007] Preferably, the clamping device includes a first limiting plate, which is disposed above the first fixed plate and fixedly connected to the outer wall of the drive shaft; a first limiting groove is formed on the surface of the first limiting plate; a first sliding groove is formed on the outer wall of the first fixed plate; a first clamping rod is slidably connected to the inner wall of the first sliding groove; a first limiting rod is fixedly connected to the top of the first clamping rod and movably connected to the inner wall of the first limiting groove; wherein, through the cooperation of the first limiting plate, the first limiting groove, the first sliding groove, the first clamping rod and the first limiting rod, the inner wall of the flange to be processed placed on the top of the second fixed plate is clamped.

[0008] Preferably, the fixing device includes a second limiting plate, which is disposed below the second fixed plate and fixedly connected to the outer wall of the drive shaft; a second limiting groove is formed on the surface of the second limiting plate; a second sliding groove is formed on the outer wall of the second fixed plate; a second abutting rod is slidably connected to the inner wall of the second sliding groove; a second limiting rod is fixedly connected to the bottom of the second abutting rod and movably connected to the inner wall of the second limiting groove; a bracket is inserted into the inner wall of the second abutting rod; and an abutting block is disposed on the side of the bracket near the second fixed plate. The outer wall of the flange to be processed, placed on top of the second fixed plate, is abutted and fixed by the cooperation of the second limiting plate, the second limiting groove, the second sliding groove, the second abutting rod, the bracket, and the abutting block.

[0009] Preferably, a movable groove is provided on the side of the outer wall of the bracket near the second fixed plate, and a movable locking block is slidably engaged with the inner wall of the movable groove. The outer wall of the movable locking block is fixedly connected to the outer wall of the abutment block.

[0010] Preferably, the clamping device includes a clamping bolt, which is threadedly connected to the top of the bracket; a clamping plate is fixedly connected to the bottom of the clamping bolt; a limiting hole is opened on the outer wall of the bracket away from the clamping block; a limiting screw passes through the outer wall of the second clamping rod and is threadedly connected to the inner wall of the limiting hole; wherein, through the cooperation of the clamping bolt, the clamping plate, the limiting hole and the limiting screw, the flange to be processed is clamped to the top of the second fixed plate.

[0011] Beneficial effects

[0012] This utility model provides a linkage locking flange processing fixture. It has the following advantages: This linkage locking flange processing fixture, through the cooperation of a first limiting plate, a first limiting groove, a first sliding groove, a first clamping rod, and a first limiting rod, automatically clamps and fixes the inner diameter of the flange to be processed. This solves the problem that in practical use, traditional flange processing fixtures may require workers to use a simple locking structure with multiple fixing bolts to stably fix the flange to the fixture, which is very time-consuming, leading to excessive preparation time and reduced processing efficiency.

[0013] By cooperating with the second limiting plate, the second limiting groove, the second sliding groove, the second clamping rod, the second limiting rod, the bracket, and the clamping block, the flange to be processed is automatically clamped and fixed from the outside. This solves the problem that traditional flange processing fixtures mostly use a single fixing method. After long-term use, the single fixing method may not be able to guarantee that the flange is firmly fixed on the fixture. During processing, the flange may move slightly, resulting in a slight deviation in the processing position, which affects the processing accuracy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an installation diagram of the present invention;

[0016] Figure 3 for Figure 1 A structural diagram of the movable groove, the clamping block, and the movable locking block;

[0017] Figure 4 for Figure 1 A structural diagram of the center limiting hole, limiting screw, and bracket;

[0018] Figure 5 for Figure 2 A schematic diagram of the structure of the first limiting groove, the first clamping rod, and the first limiting rod.

[0019] In the diagram: 1. Servo motor; 11. Drive shaft; 2. First fixed plate; 3. Support plate; 4. Second fixed plate; 5. Clamping device; 51. First limiting plate; 52. First limiting groove; 53. First sliding groove; 54. First clamping rod; 55. First limiting rod; 6. Fixing device; 61. Second limiting plate; 62. Second limiting groove; 63. Second sliding groove; 64. Second clamping rod; 65. Second limiting rod; 66. Bracket; 661. Movable groove; 67. Clamping block; 671. Movable locking block; 7. Pressing device; 71. Pressing bolt; 72. Pressing plate; 73. Limiting hole; 74. Limiting screw. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In practical use, traditional flange processing fixtures may require workers to use a simple locking structure and multiple fixing bolts to stably fix the flange to the fixture when fixing it. This fixing method is very time-consuming, resulting in excessive preparation time before processing and thus reducing processing efficiency.

[0022] In view of this, the present invention provides a linkage locking flange processing fixture, which solves the problem that in actual use, when fixing the flange to be processed by the traditional flange processing fixture, the operator may need to use a simple locking structure and multiple fixing bolts to stably fix the flange to be processed on the flange processing fixture. This fixing method is very time-consuming, resulting in excessive preparation time before processing and thus reducing processing efficiency.

[0023] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0024] Example 1: By Figure 1-5 As can be seen, a linkage locking flange processing fixture includes a servo motor 1. The output end of the servo motor 1 is fixedly connected to a drive shaft 11. The drive shaft 11 is rotatably connected from top to bottom to a first fixed plate 2, a support plate 3, and a second fixed plate 4 via sealed bearings. The first fixed plate 2 is fixedly connected to the top of the support plate 3, the support plate 3 is fixedly connected to the top of the second fixed plate 4, the bottom of the second fixed plate 4 is fixedly connected to the outer wall of the servo motor 1, and a support leg 41 is fixedly connected to the side of the bottom of the second fixed plate 4 away from the servo motor 1. The linkage locking flange processing fixture also includes a pressing device 5, a fixing device 6, and a clamping device 7. The pressing device 5 is disposed on the outer wall of the first fixed plate 2; the fixing device 6 is disposed above the second fixed plate 4; and the clamping device 7 is disposed above the fixing device 6. The pressing device 5 presses against the inner wall of the flange to be processed, the fixing device 6 fixes the outer wall of the flange to be processed, and the clamping device 7 clamps the flange to be processed to the top of the second fixed plate 4.

[0025] In the specific implementation process, it is worth noting that the model of servo motor 1 should be selected according to actual needs, as long as it meets the operational requirements. For example, an MSMF022L1UM model motor can be selected, and the matching external controller can be an MFDLTA4NF multi-functional servo driver. The specific connection method is as follows: First, connect the three-phase AC power lines to the L1, L2, and L3 terminals of the driver's main circuit power supply respectively. To ensure equipment safety, the driver's grounding terminal must be reliably grounded. Second, connect the positive terminal of the 24V DC power supply to the "+24V" terminal of the driver's control circuit power supply, and the negative terminal to the "0V" terminal. After that, connect the encoder cable plug... Connect the encoder cable to the motor's encoder interface, ensuring the pins are firmly inserted to prevent loosening from affecting signal transmission. On the other end, connect each core wire of the encoder cable to the encoder interface terminal of the driver according to the wiring diagram in the driver's manual. Finally, if the tooling requires speed control in certain processing stages, connect the external speed command signal to the speed command input terminal of the driver. Precise position control is often required for actions such as clamping, fixing, and pressing in the tooling; connect the position command signal to the position command input terminal of the driver. The frequency of the pulse signal determines the motor's speed, and the number of pulses determines the rotation angle of the servo motor 1. The drive shaft 11 is a cylindrical rod, and its material can be selected... Made of stainless steel, the first fixing plate 2 is located at the top and is circular in shape. It has a through hole in its center, through which a sealed bearing is fixedly connected. The support plate 3 is located below the first fixing plate 2 and is also circular in shape. It has a cylindrical protrusion at its top, the diameter of which is smaller than that of the first fixing plate 2. It also has a through hole in its center, corresponding to the through hole in the first fixing plate 2. A sealed bearing is also fixedly connected to its inner wall. The second fixing plate 4 is also circular in shape, but its diameter is larger than that of the first fixing plate 2. It also has a cylindrical protrusion at its top and a through hole in its center, corresponding to the through hole in the support plate 3. A sealed bearing is also fixedly connected to its inner wall. Four support legs 41 are fixed to the bottom of the fixed plate 4. The servo motor 1 is located at the center of the four support legs 41 and is fixed to the bottom of the second fixed plate 4 through the motor bracket. When the servo motor 1 drives the transmission shaft 11 to rotate, the first fixed plate 2, the support plate 3, and the second fixed plate 4 are stationary and do not rotate with the servo motor 1. The first fixed plate 2, the support plate 3, the second fixed plate 4, and the support legs 41 can all be made of 42CrMo high-strength alloy steel. The operator fixes the flange to be processed from the inner wall of the flange through the clamping device 5, fixes the flange to be processed from the outside through the fixing device 6, and fixes the flange to be processed to the top of the second fixed plate 4 through the pressing device 7.

[0026] Furthermore, the clamping device 5 includes a first limiting plate 51, a first limiting groove 52, a first sliding groove 53, a first clamping rod 54, and a first limiting rod 55. The first limiting plate 51 is disposed above the first fixed plate 2 and is fixedly connected to the outer wall of the drive shaft 11; the first limiting groove 52 is formed on the surface of the first limiting plate 51; the first sliding groove 53 is formed on the outer wall of the first fixed plate 2; the first clamping rod 54 is slidably connected to the inner wall of the first sliding groove 53; the first limiting rod 55 is fixedly connected to the top of the first clamping rod 54 and movably connected to the inner wall of the first limiting groove 52; wherein, through the cooperation of the first limiting plate 51, the first limiting groove 52, the first sliding groove 53, the first clamping rod 54, and the first limiting rod 55, the inner wall of the flange to be processed placed on the top of the second fixed plate 4 is clamped.

[0027] In the specific implementation process, it is worth noting that the first limiting plate 51 is generally circular, with a diameter smaller than that of the first fixed plate 2. It has a through hole in its center for fixing to the drive shaft 11. Six first limiting grooves 52 are formed on its surface, each resembling a crescent shape and extending vertically. During processing, the first limiting grooves 52 are arranged clockwise around the through hole in their center, forming six symmetrical grooves when viewed from above. The first sliding grooves 53 are processed on the sidewall of the first fixed plate 2, extending through the top and bottom. The cross-section of the first sliding grooves 53 is shaped like a cross. There are six first sliding grooves 53, with a 60-degree difference between each pair. Six first abutting rods 54 are also provided, resembling a T-shape, with their outer walls aligned with the first sliding grooves 53. The sliding connection has a cross-section in the shape of a cross to prevent the first clamping rod 54 from moving vertically. There are six first limiting rods 55, which are cylindrical in shape and have threads on their surface. Nuts are threaded onto their outer walls. The six first limiting rods 55 correspond one-to-one with the six first limiting grooves 52. The six first limiting rods 55 slide in the six first limiting grooves 52 respectively. The nuts on the outer walls of the first limiting rods 55 limit the first limiting plate 51 to prevent it from falling off. All of the above parts can be made of stainless steel. By cooperating with the first limiting plate 51, the first limiting groove 52, the first sliding groove 53, the first clamping rod 54 and the first limiting rod 55, the operator uses multiple first clamping rods 54 in linkage to fix the flange to be processed from the inner wall, thereby improving the stability of the flange to be processed on the linkage locking flange processing fixture.

[0028] Furthermore, the fixing device 6 includes a second limiting plate 61, a second limiting groove 62, a second sliding groove 63, a second abutting rod 64, a second limiting rod 65, a bracket 66, and abutting block 67. The second limiting plate 61 is disposed below the second fixing plate 4 and is fixedly connected to the outer wall of the drive shaft 11; the second limiting groove 62 is formed on the surface of the second limiting plate 61; the second sliding groove 63 is formed on the outer wall of the second fixing plate 4; the second abutting rod 64 is slidably connected to the inner wall of the second sliding groove 63; the second limiting... Rod 65 is fixedly connected to the bottom of the second abutting rod 64 and movably connected to the inner wall of the second limiting groove 62; bracket 66 is inserted into the inner wall of the second abutting rod 64; abutting block 67 is disposed on the side of bracket 66 near the second fixed plate 4; wherein, through the cooperation of the second limiting plate 61, the second limiting groove 62, the second sliding groove 63, the second abutting rod 64, the second limiting rod 65, bracket 66 and abutting block 67, the outer wall of the flange to be processed placed on the top of the second fixed plate 4 is abutted and fixed.

[0029] In the specific implementation process, it is worth noting that the second limiting plate 61 is generally circular, with a diameter smaller than that of the second fixed plate 4. It has a through hole in its center for fixing to the drive shaft 11. Four second limiting grooves 62 are formed on its surface. These second limiting grooves 62 are identical to the first limiting groove 52. During processing, the second limiting grooves 62 are arranged counter-clockwise around the through hole in their center, forming four second limiting grooves 62 that are centrally symmetrical when viewed from above. The second sliding groove 63 is processed on the second fixed plate 4. The side wall of plate 4 has a second sliding groove 63 that runs through the top and bottom of the second fixed plate 4. The second sliding groove 63 has a cross-section in the shape of a cross, and there are six second sliding grooves 63. The distance between each pair of second sliding grooves 63 is 90 degrees. There are four second abutting rods 64, which also have a cross-section in the shape of a cross and are slidably connected to the inner wall of the second sliding grooves 63 to prevent the second abutting rods 64 from moving vertically. The outer wall of the second abutting rod 64 has a square through groove on the side away from the center of the second fixed plate 4. The through groove runs through the top and bottom, and the outer wall of the second abutting rod 64 is far from the center of the second fixed plate 4. A circular through hole is provided on the outer wall of one side away from the center of the second fixed plate 4. The through hole and the through groove are connected. Four second limiting rods 65 are provided. They are cylindrical in shape and have threads on their surface. Nuts are threaded onto their outer walls. The four second limiting rods 65 correspond one-to-one with the four second limiting grooves 62. The four second limiting rods 65 slide in the four second limiting grooves 62 respectively. The nuts on the outer walls of the second limiting rods 65 limit the second limiting plate 61 and prevent it from falling off. Four brackets 66 are provided. They are L-shaped in shape and their tops are... The part is provided with a through hole, and the inner wall of the through hole is machined with threads. There are four clamping blocks 67, which are quadrangular prisms with square cross sections. All the above parts can be made of stainless steel. The operator uses the cooperation of the second limiting plate 61, the second limiting groove 62, the second sliding groove 63, the second clamping rod 64, the second limiting rod 65, the bracket 66 and the clamping blocks 67 to fix the flange to be processed from the outer wall, thereby further improving the stability of the flange to be processed on the linkage locking flange processing tooling.

[0030] Specifically, when it is necessary to fix the flange to be processed onto the linkage locking flange processing fixture, firstly, the operator places the flange to be processed on top of the second fixing plate 4, so that the first fixing plate 2 is on the inner ring of the flange to be processed. Then, the external power supply of the servo motor 1 is connected through the external controller, and the servo motor 1 is started. The servo motor 1 drives the transmission shaft 11 to rotate, and the transmission shaft 11 drives the first fixing plate 2 and the second fixing plate 4 on its outer wall to rotate. The first fixing plate 2 drives the six first limiting rods 55 to move through the six first limiting grooves 52. The six first limiting rods 55 drive the six first abutting rods 54 to move. The six first abutting rods 54 move along the six first limiting grooves 52. A slide 53 moves away from the center of the first fixed plate 2 until the first abutting rod 54 abuts against the inner ring of the flange to be processed, thus fixing it from the inside of the flange. At the same time, the second fixed plate 4 drives the four second limiting rods 65 to move through the four second limiting grooves 62. The four second limiting rods 65 drive the four second abutting rods 64 to move. The four second abutting rods 64 move along the four second slides 63 towards the center of the second fixed plate 4. The four second abutting rods 64 drive the four brackets 66 to move. The four brackets 66 drive the four abutting blocks 67 to move until the abutting blocks 67 abut against the outer ring of the flange to be processed, thus fixing it from the outside of the flange.

[0031] Example 2: From Figure 1-5 It can be seen that a movable groove 661 is provided on the side of the outer wall of the bracket 66 near the second fixed plate 4, and a movable locking block 671 is slidably engaged on the inner wall of the movable groove 661. The outer wall of the movable locking block 671 is fixedly connected to the outer wall of the abutment block 67.

[0032] In the specific implementation process, it is worth noting that there are four movable grooves 661 with a convex cross-section, and four movable locking blocks 671 with a convex cross-section. Through the cooperation of the movable grooves 661 and the movable locking blocks 671, the clamping block 67 can slide on the side wall of the bracket 66, better adapt to the position of the flange to be processed, and improve the structural stability of the linkage locking flange processing tooling.

[0033] Furthermore, the clamping device 7 includes a clamping bolt 71, a clamping plate 72, a limiting hole 73, and a limiting screw 74. The clamping bolt 71 is threadedly connected to the top of the bracket 66; the clamping plate 72 is fixedly connected to the bottom of the clamping bolt 71; the limiting hole 73 is opened on the outer wall of the bracket 66 away from the abutment block 67; the limiting screw 74 passes through the outer wall of the second abutment rod 64 and is threadedly connected to the inner wall of the limiting hole 73; wherein, through the cooperation of the clamping bolt 71, the clamping plate 72, the limiting hole 73, and the limiting screw 74, the flange to be processed is clamped to the top of the second fixing plate 4;

[0034] In the specific implementation process, it is worth noting that there are four clamping bolts 71, which, in conjunction with the threads on the inner wall of the through hole at the top of the bracket 66, can move vertically. The clamping plate 72 is fixed to the bottom of the clamping bolts 71. It is circular in shape and is used to fix the flange. An anti-slip pad can also be added to its bottom to increase the friction coefficient between the two. A bracket 66 is provided with multiple limiting holes 73. The number and position of the limiting holes 73 can be processed according to actual needs to meet the working requirements. The inner wall of the limiting hole 73 is threaded and can cooperate with the limiting screw 74 to provide support for the bracket 66. The limiting hole 73 is not connected to the movable groove 661. All the above components can be made of stainless steel. The operator fixes the flange to be processed on the top of the second fixing plate 4 from above by cooperating with the clamping bolts 71, clamping plate 72, limiting holes 73 and limiting screw 74, which further improves the stability of the flange to be processed on the linkage locking flange processing fixture.

[0035] Specifically, when it is necessary to fix the flange to be processed in the vertical direction, firstly, before using the clamping block 67, the operator rotates the limiting screw 74 clockwise to make it move away from the limiting hole 73. At this time, the bracket 66 can move up and down. After reaching the appropriate position, the operator rotates the limiting screw 74 counterclockwise to make it return to its original position and fix the bracket 66. Then, the operator rotates the clamping bolt 71 clockwise with a tool. The clamping bolt 71 drives the clamping plate 72 to rotate and move downward until the clamping plate 72 completely presses against the outer wall of the flange to be processed. The other three are treated in the same way. At this time, the flange to be processed is fixed in the vertical direction.

[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 linkage locking flange processing fixture, comprising a servo motor (1), characterized in that: The output end of the servo motor (1) is fixedly connected to a drive shaft (11). The drive shaft (11) is rotatably connected from top to bottom to a first fixed plate (2), a support plate (3), and a second fixed plate (4) via a sealed bearing. The first fixed plate (2) is fixedly connected to the top of the support plate (3). The support plate (3) is fixedly connected to the top of the second fixed plate (4). The bottom of the second fixed plate (4) is fixedly connected to the outer wall of the servo motor (1). A support leg (41) is fixedly connected to the side of the bottom of the second fixed plate (4) away from the servo motor (1). The linkage locking flange processing fixture also includes: A clamping device (5) is provided on the outer wall of the first fixing plate (2); The fixing device (6) is located above the second fixing plate (4); A clamping device (7) is positioned above the fixing device (6); The inner wall of the flange to be processed is pressed by the clamping device (5), the outer wall of the flange to be processed is fixed by the fixing device (6), and the flange to be processed is pressed to the top of the second fixing plate (4) by the pressing device (7).

2. The linkage locking flange processing fixture according to claim 1, characterized in that: The clamping device (5) includes: The first limiting plate (51) is located above the first fixing plate (2) and is fixedly connected to the outer wall of the transmission shaft (11); The first limiting groove (52) is formed on the surface of the first limiting plate (51); The first groove (53) is formed on the outer wall of the first fixed plate (2); The first abutting rod (54) is slidably connected to the inner wall of the first groove (53); The first limiting rod (55) is fixedly connected to the top of the first abutting rod (54) and movably connected to the inner wall of the first limiting groove (52); The inner wall of the flange to be processed, which is placed on the top of the second fixing plate (4), is pressed together by the cooperation of the first limiting plate (51), the first limiting groove (52), the first sliding groove (53), the first pressing rod (54) and the first limiting rod (55).

3. The linkage locking flange processing fixture according to claim 2, characterized in that: The fixing device (6) includes: The second limiting plate (61) is located below the second fixing plate (4) and is fixedly connected to the outer wall of the transmission shaft (11); The second limiting groove (62) is formed on the surface of the second limiting plate (61); The second groove (63) is formed on the outer wall of the second fixed plate (4); The second abutment rod (64) is slidably connected to the inner wall of the second groove (63); The second limiting rod (65) is fixedly connected to the bottom of the second abutting rod (64) and movably connected to the inner wall of the second limiting groove (62); The bracket (66) is inserted into the inner wall of the second abutment rod (64); A clamping block (67) is provided on the side of the bracket (66) near the second fixing plate (4); The outer wall of the flange to be processed, placed on the top of the second fixing plate (4), is pressed and fixed by the cooperation of the second limiting plate (61), the second limiting groove (62), the second sliding groove (63), the second abutting rod (64), the second limiting rod (65), the bracket (66) and the abutting block (67).

4. The linkage locking flange processing fixture according to claim 3, characterized in that: The bracket (66) has a movable groove (661) on the side of its outer wall near the second fixed plate (4). The inner wall of the movable groove (661) is slidably engaged with a movable locking block (671). The outer wall of the movable locking block (671) is fixedly connected to the outer wall of the abutment block (67).

5. The linkage locking flange processing fixture according to claim 3, characterized in that: The clamping device (7) includes: A clamping bolt (71) is threaded onto the top of a bracket (66); A clamping plate (72) is fixedly connected to the bottom of a clamping bolt (71); The limiting hole (73) is opened on the outer wall of the bracket (66) on the side away from the clamping block (67); The limiting screw (74) passes through the outer wall of the second abutment rod (64) and is threaded to the inner wall of the limiting hole (73); The flange to be processed is pressed onto the top of the second fixing plate (4) by the cooperation of the clamping bolt (71), clamping plate (72), limiting hole (73) and limiting screw (74).

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