Ventilation cage machining clamp and ventilation cage machining equipment

Abstract

The invention discloses a ventilation cage machining clamp and ventilation cage machining equipment. The ventilation cage machining clamp comprises a rotary disc, a positioning column and a positioning ring, and a gap allowing a central shaft tube of a ventilation cage to be inserted therein is formed between the positioning column and the positioning ring. A plurality of inner supporting rods are arranged on the rotary disc in the circumferential direction at equal intervals, and movable inserting rods which are equal to the inner supporting rods in number and correspond to the inner supporting rods in position one to one are inserted in the positioning ring in the direction parallel to the positioning column. The end, away from the inner supporting rod, of the connecting rod is hinged to the top of the movable inserting rod. The ventilation cage machining clamp further comprises a driving mechanism used for providing pushing acting force to drive the movable insertion rod to move upwards and a first reset mechanism used for driving the movable insertion rod to move downwards to reset. The ventilation cage machining clamp has the effects that a semi-finished ventilation cage workpiece can be conveniently positioned and fixed, uniform supporting force is provided for a main body of the semi-finished ventilation cage workpiece, and workpiece deformation in subsequent machining is reduced. The invention correspondingly provides ventilation cage machining equipment applying the ventilation cage machining clamp.

Description

Technical Field

[0001] The invention belongs to the technical field of machining, and in particular relates to a ventilation cage machining fixture and ventilation cage machining equipment. Background Art

[0002] like Figure 1-2 The ventilation cage 1 shown is made of metal and has a wall thickness of 3 mm, and includes a hollow cylindrical main body 11 and a central shaft tube 12 coaxially fixedly arranged in the main body 11. An end plate 111 is provided at one end of the main body 11, and a skirt 13 is formed by folding the periphery of the opening at the other end. The central shaft tube 12 is fixed to the end plate 111. A plurality of hollow holes 112 are evenly opened on the circumferential side of the end plate 111 and the main body 11. There are two main ways to process the hollow holes 112 on the main body 11:

[0003] 1. First, a hollow hole 112 is punched out on a metal plate, and then the metal plate with the hollow hole 112 is punched out to form the main body 11. The wall of the ventilation cage 1 is relatively thin, and this method is likely to cause the main body 11 to deform; at the same time, because the main body 11 is cylindrical, refer to Figure 3 The inner and outer diameters (R0) of the hollow hole 112 punched on the metal plate are consistent. After the metal plate is further punched into a cylindrical shape, the inner and outer diameters of the hollow hole 112 are inconsistent (R1 < R2) due to the bending of the plate and the extrusion deformation during the punching process. Therefore, it is not easy to accurately restore the size and shape of the design drawing using this processing method.

[0004] Second, the metal plate is first punched to form the main body 11, and then the central axis tube 12 is welded, and then the hollow holes 112 are opened on the peripheral surface and end surface of the main body 11. This processing method lacks a special fixture for this type of product, so the semi-finished main body 11 is easily deformed due to improper clamping, or the workpiece is deformed due to the extrusion of the milling cutter during the milling process due to unreasonable clamping.

[0005] Therefore, for the processing of this type of cylindrical thin-walled ventilation cage, it is necessary to provide a special fixture to reduce the deformation of the workpiece caused by improper clamping. Summary of the invention

[0006] In order to overcome the deformation problem caused by improper clamping during the processing of a cylindrical thin-wall ventilation cage, the present invention provides a ventilation cage processing fixture and ventilation cage processing equipment.

[0007] In the first aspect, the present invention provides a ventilation cage processing fixture, and the specific technical solution provided is as follows:

[0008] A ventilation cage processing fixture comprises a rotatable turntable, on which a positioning column for inserting into the inner cavity of a central axis tube and a positioning ring with an inner diameter larger than that of the positioning column are coaxially arranged, a gap for inserting the central axis tube is formed between the positioning column and the positioning ring; a plurality of inner support rods for supporting the inner circumferential side wall of the main body of the ventilation cage are arranged at equal intervals along the circumferential direction of the turntable, a plurality of movable insertion rods are inserted along the positioning ring in a direction parallel to the positioning column, the number of the movable insertion rods is the same as the number of the inner support rods and the positions correspond one to one; one end of the inner support rod is hinged to the turntable, and the other end is hinged to a connecting rod, and the end of the connecting rod away from the inner support rod is hinged to the top of the movable insertion rod; the ventilation cage processing fixture also comprises a driving mechanism for providing a pushing force to drive the movable insertion rod to move upward, and a first resetting mechanism for driving the movable insertion rod to move downward and reset.

[0009] By adopting the above technical solution, when clamping the ventilation cage workpiece to be further processed, the ventilation cage is buckled on the turntable so that the central tube shaft is inserted between the positioning column and the positioning ring, the positioning column is inserted into the inner cavity of the central tube shaft, and the inner support rod is located on the inner side of the main body. Then, under the action of the driving mechanism, the movable plug rod is driven to move up, and the linkage connecting rod drives the inner support rod to expand outward, which plays a supporting role on the inner wall of the ventilation cage main body. At this time, the semi-finished ventilation cage is firmly fixed, and hollow holes can be further opened around the main body with the help of machining equipment. Since the inner support rods are distributed at equal intervals along the circumference of the turntable, the pressure on the side wall of the ventilation cage main body can be evenly dispersed, and the hole opening processing is not hindered, so that the main body is not easy to deform. The turntable is rotatably arranged, so that the processing position can be switched by rotation, and the hole opening processing can be easily and evenly performed on the circumferential side of the main body. After the processing is completed, the driving mechanism releases the pushing force on the movable plug rod. Under the action of the first reset mechanism, the movable plug rod is reset, and the connecting rod pulls the inner support rod to recover, thereby releasing the supporting effect on the ventilation cage main body.

[0010] Furthermore, the top surface of the positioning ring is provided with a receiving cavity, and the movable plug rod is inserted into the receiving cavity; the first reset mechanism comprises a first reset elastic member whose top end is fixed to the top of the movable plug rod and whose bottom end is fixed to the bottom wall of the receiving cavity. When the movable plug rod moves upward, the first reset elastic member is stretched; after the driving mechanism releases the pushing force on the movable plug rod, the first elastic member recovers its deformation and drives the movable plug rod to reset.

[0011] Furthermore, it also includes a mounting base plate arranged below the turntable, on which a mounting tube is arranged; a central rotating shaft penetrating the mounting tube is arranged at the center of the bottom surface of the turntable; the movable insertion rod extends to penetrate the turntable, and a driving component for providing a pushing force is arranged on the mounting base plate.

[0012] Furthermore, the driving component includes a push ring plate, a second reset elastic member, a wedge block and a driving member; the push ring plate is sleeved on the mounting tube, and the bottom end of the movable insert rod extends to abut against the top surface of the push ring plate; the top end of the second reset elastic member is fixed to the push ring plate, and the bottom end is fixed to the mounting base plate; the wedge block is slidably assembled on the mounting base plate, and its inclined surface abuts against the periphery of the push ring plate; the driving member is arranged on the mounting base plate, and is used to provide push-pull power to drive the wedge block to move radially along the push ring plate; at least three wedge blocks are arranged at equal intervals along the circumference of the push ring plate, and each wedge block is connected to a driving member.

[0013] By adopting the above technical solution, when the driving member generates thrust, the wedge block moves toward the mounting tube, and uses the inclined surface to push the push ring plate upward, thereby driving the movable plug rod to move upward. At least three wedge blocks are arranged around the mounting tube at intervals, which can provide sufficient thrust force, and make the push ring plate evenly stressed and move upward smoothly.

[0014] Furthermore, a guide protrusion is provided on the inner edge of the push ring plate, and a guide groove is provided along the axial direction on the outer wall of the mounting tube for the guide protrusion to be inserted into. The cooperation between the guide protrusion and the guide groove can make the push environmental protection move up and down only along the axis of the mounting tube, and the pushing effect on the movable plug rod is more stable.

[0015] Furthermore, a slide groove is radially opened on the turntable, a slider is slidably mounted in the slide groove, and the inner support rod is hinged to the top surface of the slider; a locking mechanism for locking the position of the slider is provided in the slide groove.

[0016] By adopting the above technical solution, the position of the slider in the slide groove, that is, the position of the slider from the positioning column, can be changed according to actual needs, so that the inner support rod is suitable for supporting ventilation cage bodies of various sizes, thereby increasing the applicability of the clamp.

[0017] Furthermore, the slide groove extends away from one end of the positioning column to the periphery of the turntable to form an opening; the locking mechanism includes a blocking block fixedly arranged at the end opening of the slide groove and an adjusting screw arranged along the length direction of the slide groove, one end of the adjusting screw is rotatably connected to the side wall of the slide groove, and the other end passes through the slider and the blocking block in sequence; the slider is threadedly connected to the adjusting screw, and the part of the adjusting screw that passes through the blocking block is a smooth section without threads.

[0018] By adopting the above technical solution, the position of the slider can be easily adjusted by turning the adjusting screw to meet the processing requirements of ventilation cages of different sizes and specifications.

[0019] Furthermore, a sink groove is provided on the side of the blocking block, the end of the adjusting screw extends to the sink groove, and the end of the adjusting screw is provided with a rotating block located in the sink groove.

[0020] Furthermore, the top surfaces of the blocking block and the sliding block are flush with the top surface of the turntable.

[0021] Furthermore, an elastic cushion layer is provided on the side of the inner support rod away from the positioning column. The elastic cushion layer is beneficial to protecting the ventilation cage and reducing scratch damage to the ventilation cage.

[0022] Furthermore, the inner support rod comprises a plurality of detachable rod sections, and a double-threaded rod is provided between adjacent rod sections; the two ends of the double-threaded rod are respectively inserted into two adjacent rod sections and threadedly connected. The length of the inner support rod can be changed by rotating the double-threaded rod, which is suitable for supporting ventilation cages of different specifications, thereby increasing the applicability of the clamp.

[0023] In a second aspect, the present invention provides a ventilation cage processing device, which uses the above-mentioned ventilation cage processing fixture.

[0024] The present invention has the following beneficial effects:

[0025] Firstly, after the central tube axis of the workpiece to be processed is initially positioned by the positioning column and the positioning ring, the inner support rod is expanded outward to provide a uniform supporting force to the inner wall of the main body of the workpiece to be processed, so that the workpiece is not easily deformed during the processing, and is suitable for processing thin-walled cylindrical workpieces such as ventilation cages;

[0026] Secondly, the present invention can adapt to the processing of workpieces of different specifications. By changing the bottom end position of the inner support rod with the help of a slider, it can adapt to the processing of workpieces with different diameters. By moving the movable insert rod upward to different degrees, the inner support rod can be expanded to different degrees, which can be suitable for the processing of workpieces with a certain taper. In the preferred embodiment, the length of the inner support rod is adjustable, which can adapt to the processing of workpieces with different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The structure of the ventilation cage in the background technology is shown in FIG. Figure 1 ;

[0028] Figure 2 The structure of the ventilation cage in the background technology is shown in FIG. Figure 2 ;

[0029] Figure 3 It is a processing condition diagram of the ventilation cage in the background technology;

[0030] Figure 4 The structure of the ventilation cage processing fixture in Example 1 is shown in FIG. Figure 1 ;

[0031] Figure 5 The structure of the ventilation cage processing fixture in Example 1 is shown in FIG. Figure 2 ;

[0032] Figure 6 for Figure 5 A magnified view of part A;

[0033] Figure 7A cross-sectional view of the ventilation cage processing fixture in Example 1 Figure 1 (partial);

[0034] Figure 8 A cross-sectional view of the ventilation cage processing fixture in Example 1 Figure 2 (partial);

[0035] Fig. 9 for Figure 8 A magnified view of part B;

[0036] Fig.10 is a schematic structural diagram of the inner support rod in Example 2;

[0037] Fig.11 This is a schematic diagram of the structure of the ventilation cage processing equipment in Example 3.

[0038] Description of reference numerals:

[0039] 1. Ventilation cage; 11. Main body; 111. End plate; 112. Hollow hole; 12. Central axis tube; 13. Skirt; 2. Turntable; 21. Central axis; 22. Slide; 221. Slider; 222. Block; 2221. Sink; 223. Adjusting screw; 2231. Rotary block; 23. Positioning column; 24. Positioning ring; 241. Accommodating cavity; 242. First reset elastic member; 3. Inner support rod; 31. Elastic cushion layer; 32. Rod section; 33. Double threaded rod; 34. Adjusting block; 5. Movable plug rod; 51. Rod body; 52. Rod head; 6. Connecting rod; 7. Mounting base plate; 71. Mounting tube; 72. Wedge block; 73. Driving member; 74. Second reset elastic member; 75. Push ring plate; 8. Frame; 81. Three-axis machining table; 9. Milling cutter. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0041] [Example 1]

[0042] Reference Figure 4 A ventilation cage processing fixture includes a turntable 2 for carrying a semi-finished ventilation cage and a mounting base plate 7 arranged parallel to the bottom of the turntable 2. A mounting tube 71 perpendicular to the mounting base plate 7 is fixedly arranged on the mounting base plate 7, and a central rotating shaft 21 is fixedly installed at the center of the bottom surface of the turntable 2. The central rotating shaft 21 is rotatably inserted in the mounting tube 71, and the bottom end passes through the bottom of the mounting base plate 7. One end of the central rotating shaft 21 passing through the bottom of the mounting base plate 7 is used to connect with a power mechanism, and can drive the turntable 2 to rotate in the circumferential direction under the drive of the power mechanism.

[0043] Reference Figure 5 and Figure 6A positioning column 23 is coaxially fixedly arranged at the center of the top surface of the turntable 2. The positioning column 23 is used to insert into the central axis tube of the ventilation cage for preliminary positioning.

[0044] Reference Figure 5 and Figure 6 The top surface of the turntable 2 is radially provided with a plurality of slide grooves 22. The cross section of the slide groove 22 is inverted trapezoidal and extends to the periphery of the turntable 2 away from the positioning column 23 to form an opening. In this embodiment, there are six slide grooves 22 in total, and they are evenly spaced along the circumference of the turntable 2. A slider 221 is slidably mounted in each slide groove 22, and a blocking block 222 is fixedly mounted at the end opening by a countersunk bolt. The shapes of the slider 221 and the blocking block 222 are both adapted to the shape of the slide groove 22.

[0045] Reference Figure 5 , Figure 6 and Figure 7 , an adjusting screw 223 is arranged in the slide 22 along the length direction of the slide 22. One end of the adjusting screw 223 is rotatably connected to the side wall of the slide 22 near one end of the positioning column 23, and the other end passes through the slider 221 and the blocking block 222 in sequence. The slider 221 and the adjusting screw 223 are threadedly connected. When the adjusting screw 223 is rotated, the slider 221 can slide and change its position in the slide 22 along the length direction of the adjusting screw 223. The part of the adjusting screw 223 that passes through the blocking block 222 is a smooth section without threads. A sink groove 2221 is provided on the side of the blocking block 222 that is away from the slider 221, and a rotary block 2231 located in the sink groove 2221 is fixed at the end of the adjusting screw 223. In this embodiment, the rotary block 2231 is a regular hexagon, and the adjusting screw 223 can be easily rotated with the help of a wrench or other tools to change the position of the slider 221.

[0046] Reference Figure 5 , Figure 6 and Figure 7 , an inner support rod 3 is hinged on the top surface of each slider 221. A connecting rod 6 is hinged on one end of the inner support rod 3 away from the slider 221. An elastic cushion layer 31 is provided on the side of the inner support rod 3 away from the positioning column 23. By pulling the connecting rod 6, the inner support rod 3 can be rotated toward / away from the positioning column 23 to loosen / tighten the inner wall of the main body of the semi-finished ventilation cage.

[0047] Reference Figure 1 and Figure 8 A positioning ring 24 is coaxially fixedly disposed on the top surface of the turntable 2. The inner diameter of the positioning ring 24 is larger than the diameter of the positioning column 23, and a gap is formed between the two for inserting the central tube body of the ventilation cage.

[0048] Reference Figure 8The top surface of the positioning ring 24 is provided with a plurality of accommodating cavities 241, and a movable insertion rod 5 is movably inserted in each accommodating cavity 241. The number of accommodating cavities 241 and the number of movable insertion rods 5 are uniformly equal to the number of inner support rods 3, and the positions correspond one to one. The end of the connecting rod 6 away from the inner support rod 3 is hinged to the top of the movable insertion rod 5.

[0049] Reference Figure 8 and Fig. 9 , the movable insertion rod 5 includes a rod body 51 and a cylindrical rod head 52 fixed to the top of the rod body 51. The connecting rod 6 is hinged to the rod head 52; the rod body 51 is inserted into the accommodating cavity 241 along a direction parallel to the positioning column 23, and the bottom end of the rod body 51 passes through the bottom wall of the accommodating cavity 241 until it passes out from the bottom surface of the turntable 2. A first reset elastic member 242 is provided in the accommodating cavity 241. In this embodiment, the first reset elastic member 242 is a spring, the top end of which is fixedly connected to the rod head 52 and the bottom end is fixed to the bottom wall of the accommodating cavity 241. When the movable insertion rod 5 is pushed upward, the first reset elastic member 242 is stretched; after the pushing force on the movable insertion rod 5 is released, the first reset elastic member 242 restores its deformation and pulls the movable insertion rod 5 to reset. In normal state, the rod head 52 of the movable insertion rod 5 is located at the opening of the accommodating cavity 241.

[0050] Reference Figure 8 and Fig. 9 , the pushing force for driving the movable plug rod 5 is provided by the driving component arranged on the mounting base plate 7. The driving component includes a push ring plate 75, a second reset elastic member 74, a wedge block 72 and a driving member 73. The push ring plate 75 is sleeved on the mounting tube 71 and can float up and down along the axial direction of the mounting tube 71; one end of the movable plug rod 5 protruding from the bottom surface of the turntable 2 abuts against the top surface of the push ring plate 75; the wedge block 72 is slidably mounted on the top surface of the mounting base plate 7, and it can move along the radial direction of the push ring plate 75 and its inclined surface abuts against the peripheral edge of the push ring plate 75; the driving member 73 is used to provide driving force for the sliding of the wedge block 72, which can be a cylinder, a hydraulic cylinder or a linear motor. In this embodiment, a linear motor is used as the driving member 73. The power output end of the driving member 73 is connected to the wedge block 72. When the driving member 73 generates thrust, the wedge block 72 moves toward the center shaft 21, and at the same time uses the inclined surface to push the push ring plate 75 upward, thereby driving the movable insertion rod 5 to move upward.

[0051] Reference Figure 8 The second resetting elastic member 74 is used to drive the push ring plate 75 to reset after the driving member 73 releases the thrust on the wedge block 72. In this embodiment, the second resetting elastic member 74 is a spring. In order to make the push ring plate 75 evenly stressed, three groups of driving components are arranged at equal intervals along the circumference of the push ring plate 75.

[0052] [Example 2]

[0053] Reference Fig.10This embodiment is based on the embodiment 1, and the only difference from the embodiment 1 is that the length of the inner support rod 3 is adjustable.

[0054] Specifically, the inner support rod 3 is composed of two different rod sections 32 and a double-threaded rod 33; the double-threaded rod 33 is arranged between the two rod sections 32, and the two ends are respectively inserted into the two rod sections 32 and threadedly connected. When the double-threaded rod 33 is rotated, the relative distance between the two rod sections 32 can be changed, thereby adjusting the overall length of the inner support rod 3. In order to facilitate the operation of adjusting the length, an annular adjustment block 34 is provided in the middle of the double-threaded rod 33. The inner support rod 3 with adjustable length can adapt to the inner support fixation of semi-finished ventilation cages of different heights, increasing the applicability of the ventilation cage processing fixture.

[0055] [Example 3]

[0056] Reference Fig.11 A ventilation cage processing device includes a frame 8, a three-axis processing table 81 arranged on the frame 8, and a ventilation cage processing fixture. The ventilation cage processing fixture is the ventilation cage processing fixture of embodiment 1, and the ventilation cage processing fixture of embodiment 2 can also be selected in other embodiments.

[0057] The ventilation cage processing fixture is located on one side of the three-axis processing table 81, and a milling cutter 9 facing the ventilation cage processing fixture is installed on the three-axis processing table 81. The central shaft 21 of the ventilation cage processing fixture extends to the bottom of the frame 8 and is connected to a power component for providing a driving force for the rotation of the turntable 2. The power component is a conventional technical means such as a motor connected to the turntable 2, which will not be described here. The semi-finished ventilation cage 1 is inverted on the turntable 2 and fixed with the inner support rod 3, and then the hollow hole 112 on the side can be processed with the help of the milling cutter 9 installed on the three-axis processing table 81.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A ventilation cage processing fixture, comprising a rotatable turntable (2), characterized in that: The rotating disk (2) is coaxially provided with a positioning column (23) for inserting into the inner cavity of the central shaft tube (12) and a positioning ring (24) whose inner diameter is larger than the diameter of the positioning column (23), and a gap is formed between the positioning column (23) and the positioning ring (24) for inserting the central shaft tube (12); A plurality of inner support rods (3) for supporting the inner circumferential side wall of the main body (11) of the ventilation cage (1) are arranged at equal intervals along the circumferential direction on the rotating disk (2); a plurality of movable insertion rods (5) are inserted along the locating ring (24) in a direction parallel to the locating column (23); the number of movable insertion rods (5) is the same as the number of inner support rods (3) and the positions thereof correspond one to one; one end of the inner support rod (3) is hinged to the rotating disk (2) and the other end is hinged to a connecting rod (6); the end of the connecting rod (6) away from the inner support rod (3) is hinged to the top of the movable insertion rod (5); The ventilation cage processing fixture also includes a driving mechanism for providing a pushing force to drive the movable insertion rod (5) to move upward, and a first resetting mechanism for driving the movable insertion rod (5) to move downward and reset.

2. The ventilation cage processing fixture according to claim 1, characterized in that: The top surface of the positioning ring (24) is provided with a receiving cavity (241), and the movable insertion rod (5) is inserted into the receiving cavity (241); the first reset mechanism comprises a first reset elastic member (242) whose top end is fixed to the top of the movable insertion rod (5) and whose bottom end is fixed to the bottom wall of the receiving cavity (241).

3. The ventilation cage processing fixture according to claim 2, characterized in that: It also includes a mounting base plate (7) arranged below the turntable (2), and a mounting tube (71) is arranged on the mounting base plate (7); a central rotating shaft (21) penetrating the mounting tube (71) is arranged at the center of the bottom surface of the turntable (2); the movable insertion rod (5) extends to penetrate the turntable (2), and a driving component for providing a pushing force is arranged on the mounting base plate (7).

4. The ventilation cage processing fixture according to claim 3, characterized in that: The driving component comprises a push ring plate (75), a second reset elastic member (74), a wedge block (72) and a driving member (73); the push ring plate (75) is sleeved on the mounting tube (71), and the bottom end of the movable insert rod (5) extends to abut against the top surface of the push ring plate (75); the top end of the second reset elastic member (74) is fixed to the push ring plate (75), and the bottom end is fixed to the mounting base plate (7); the wedge block (72) is slidably assembled on the mounting base plate (7), and its inclined surface abuts against the periphery of the push ring plate (75); the driving member (73) is arranged on the mounting base plate (7) for providing a push-pull force to drive the wedge block (72) to move radially along the push ring plate (75); at least three wedge blocks (72) are arranged at equal intervals along the circumference of the push ring plate (75), and each wedge block (72) is connected to a driving member (73).

5. The ventilation cage processing fixture according to any one of claims 1 to 4, characterized in that: The rotating disk (2) is provided with a sliding groove (22) in a radial direction, a sliding block (221) is slidably mounted in the sliding groove (22), and the inner support rod (3) is hinged to the top surface of the sliding block (221); a locking mechanism for locking the position of the sliding block (221) is provided in the sliding groove (22).

6. The ventilation cage processing fixture according to claim 5, characterized in that: The slide groove (22) extends away from one end of the positioning column (23) to the periphery of the turntable (2) to form an opening; the locking mechanism comprises a blocking block (222) fixedly arranged at the end opening of the slide groove (22) and an adjusting screw (223) arranged along the length direction of the slide groove (22); one end of the adjusting screw (223) is rotatably connected to the side wall of the slide groove (22), and the other end passes through the slider (221) and the blocking block (222) in sequence; the slider (221) is threadedly connected to the adjusting screw (223), and the portion of the adjusting screw (223) that passes through the blocking block (222) is a smooth section without threads.

7. The ventilation cage processing fixture according to claim 6, characterized in that: A sink groove (2221) is provided on the side of the blocking block (222), the end of the adjusting screw rod (223) extends to the sink groove (2221), and a rotating block (2231) located in the sink groove (2221) is provided at the end of the adjusting screw rod (223).

8. The ventilation cage processing fixture according to any one of claims 1 to 4, characterized in that: An elastic cushion layer (31) is provided on the side of the inner support rod (3) facing away from the positioning column (23).

9. The ventilation cage processing fixture according to any one of claims 1 to 4, characterized in that: The inner support rod (3) comprises a plurality of detachable rod segments (32), and a double-threaded rod (33) is provided between adjacent rod segments (32); two ends of the double-threaded rod (33) are respectively inserted into two adjacent rod segments (32) and threadedly connected.

10. A ventilation cage processing device, using the ventilation cage processing fixture described in any one of claims 1 to 9.

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