Compressor casing positioning device

Abstract

This application relates to the field of compressor housing processing equipment technology, and more particularly to a compressor housing positioning device, which includes a base plate, a support platform for supporting the compressor housing connected to the base plate, a movable plate on each opposite side of the support platform, a fixed frame connected to the movable plate, and a clamping plate connected to the fixed frame. The clamping plate is arc-shaped and conforms to the spiral ring of the compressor housing. A drive assembly is provided on the base plate for driving the two movable plates closer or further apart. A plunger is provided on one side of the support platform for inserting into the circular tube of the compressor housing. The end of the plunger inserted into the circular tube of the compressor housing is chamfered, and the diameter of the plunger is larger than the diameter of the circular tube of the compressor housing. A movable assembly is provided on the base plate for driving the plunger to move. The drive assembly and the movable assembly use the same power source. This application enables the positioning device to stably fix the spiral ring and circular tube of the compressor housing, thereby facilitating the processing of the compressor housing.

Description

Technical Field

[0001] This utility model relates to the field of compressor housing processing equipment technology, and in particular to a compressor housing positioning device. Background Technology

[0002] The compressor is a component in a gas turbine engine that uses high-speed rotating blades to do work on the air and increase its pressure. The compressor casing usually has a combination structure of a spiral ring and a circular tube. In order to facilitate the machining and drilling of the compressor casing, the compressor is usually equipped with a casing positioning device.

[0003] Existing Chinese patent CN212825002U discloses a compressor housing positioning device, including a compressor housing positioning base and a compressor housing clamp; it also includes a positioning mandrel; the positioning mandrel includes a positioning pin portion disposed on the compressor housing positioning base and a threaded positioning portion matching the compressor housing; the threaded positioning portion is provided with a tapered pipe thread, and the positioning pin portion and the positioning hole of the matching positioning pin portion of the compressor housing positioning base are in an overfitting fit. The tapered pipe thread in the threaded positioning portion of the positioning mandrel is screwed into the connecting hole of the compressor housing, utilizing the characteristics of the tapered thread to eliminate the gap between the threads, tightly connecting the positioning mandrel and the compressor housing, preventing shaking and greatly reducing the gap between the compressor housing and the positioning mandrel; the compressor housing with the positioning mandrel is clamped on the compressor housing positioning base, and the overfitting fit between the positioning pin portion and the positioning hole of the positioning mandrel greatly reduces the gap between the compressor housing and the compressor housing positioning base.

[0004] However, the above technical solution has the following drawbacks: The positioning device mainly fixes the spiral ring of the compressor housing by positioning mandrel, and the compressor housing is fixed by the tight connection between the positioning mandrel and the compressor housing; however, the positioning effect of this positioning device on the cylindrical part of the compressor is weak. If a hole is drilled at the cylindrical part of the compressor housing, the compressor housing as a whole will vibrate, which is not conducive to ensuring the stability of the compressor housing on the positioning device. Utility Model Content

[0005] In order to enable the positioning device to stably fix the spiral ring and the circular tube of the compressor housing, so as to facilitate the processing of the compressor housing, this application provides a compressor housing positioning device.

[0006] The compressor housing positioning device provided in this application adopts the following technical solution:

[0007] A compressor housing positioning device includes a base plate, on which a support platform for supporting the compressor housing is connected. A movable plate is respectively arranged on opposite sides of the support platform, and a fixed frame is connected to the movable plate. A clamping plate is connected to the fixed frame, and the clamping plate is arc-shaped and conforms to the spiral ring of the compressor housing. A drive assembly is provided on the base plate for driving the two movable plates closer together or further apart. A plunger is provided on one side of the support platform for insertion into a circular tube of the compressor housing. The end of the plunger inserted into the circular tube of the compressor housing is chamfered, and the diameter of the plunger is larger than the diameter of the circular tube of the compressor housing. A movable assembly is provided on the base plate for moving the plunger. The drive assembly and the movable assembly use the same power source.

[0008] Preferably, the drive assembly includes a first fixed bearing, a bidirectional threaded rod, a nut seat, a first guide rod, and a drive motor. The first fixed bearing is mounted on the base plate, and one first fixed bearing is provided on each of the opposite sides of the support platform. The bidirectional threaded rod is connected between the two first fixed bearings. A through slot is provided on the support platform for the bidirectional threaded rod to pass through. The drive motor is mounted on the base plate, and the output shaft of the drive motor is coaxially connected to the bidirectional threaded rod via a coupling. The nut seat is connected to the bidirectional threaded rod, and two nut seats are provided on the bidirectional threaded rod, symmetrically arranged on both sides of the support platform. The first guide rod is connected between the two first fixed bearings and is parallel to the bidirectional threaded rod. The nut seat is slidably mounted on the first guide rod, and a first guide hole is provided on the nut seat for the first guide rod to pass through.

[0009] Preferably, the movable component includes a second fixed bearing, a lead screw, a ball bearing seat, a driving bevel gear, a driven bevel gear, a connecting block, and a second guide rod. The second fixed bearing is connected to the base plate, and two second fixed bearings are provided on the base plate. The lead screw is connected between the two second fixed bearings and is arranged in a direction perpendicular to the bidirectional threaded rod in the drive assembly. The driving bevel gear is connected to one end of the bidirectional threaded rod in the drive assembly, and the driven bevel gear is connected to one end of the lead screw. The driving bevel gear and the driven bevel gear mesh with each other. The ball bearing seat is connected to the connecting block and the lead screw. The second guide rod is connected between the two second fixed bearings and is arranged parallel to the lead screw. The connecting block is slidably disposed on the second guide rod and has a second guide hole for the second guide rod to pass through. The plunger is disposed on the connecting block, and a shock-absorbing buffer assembly is disposed between the connecting block and the plunger.

[0010] Preferably, the shock absorption assembly includes a first spring seat, a second spring seat, a buffer spring, a mounting cylinder, a cylinder cover, a movable rod, and a sliding plate. The cylinder cover is connected to the opening of the mounting cylinder. The movable rod passes through the cylinder cover and is disposed inside the mounting cylinder. The axis of the movable rod is collinear with the axis of the mounting cylinder. The sliding plate is fixedly connected to the end of the movable rod located inside the mounting cylinder. The side wall of the sliding plate slides against the inner wall of the mounting cylinder. The mounting cylinder is filled with damping oil. The sliding plate has an oil hole for the damping oil to pass through. The first spring seat and the second spring seat are respectively connected to the ends of the mounting cylinder and the movable rod. The first spring seat is connected to the connecting block, and the second spring seat is connected to the plunger. The buffer spring is sleeved on the outside of the mounting cylinder. One end of the buffer spring abuts against the first spring seat, and the other end abuts against the second spring seat.

[0011] Preferably, a positioning post is connected to the support platform, passing through the hole in the compressor housing. The positioning post is arranged in a direction perpendicular to the support platform and is located at the center of the support platform.

[0012] Preferably, a positioning plate is connected to the support platform for the circular tube of the compressor housing to fit against, and the positioning plate is arranged in a direction perpendicular to the support platform.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] This utility model provides a compressor housing positioning device. Through a drive assembly, it synchronously controls two clamping plates to clamp the spiral ring of the compressor housing. In conjunction with a movable assembly, it drives a plunger to insert into a circular tube, achieving synchronous rigid fixation of the spiral ring and the circular tube. Compared to existing single-mandrel positioning technologies, this significantly improves overall stability during machining, effectively suppressing vibration. It is particularly suitable for drilling holes in the circular tube section, thus achieving the effect of stably fixing the spiral ring and circular tube of the compressor housing for easier machining of the compressor housing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the compressor housing positioning device in the embodiments of this application;

[0016] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram illustrating the shock absorption and buffer assembly in the embodiments of this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Support platform; 21. Positioning column; 22. Positioning plate; 3. Movable plate; 31. Fixed frame; 311. Clamping plate; 4. Drive assembly; 41. First fixed bearing; 42. Bidirectional threaded rod; 43. Nut seat; 44. First guide rod; 45. Drive motor; 5. Piston; 6. Movable assembly; 61. Second fixed bearing; 62. Lead screw; 63. Ball bearing seat; 64. Driving bevel gear; 65. Driven bevel gear; 66. Connecting block; 67. Second guide rod; 7. Shock absorption and buffer assembly; 71. First spring seat; 72. Second spring seat; 73. Buffer spring; 74. Mounting cylinder; 75. Cylinder cover; 76. Movable rod; 77. Slide plate. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] This application discloses a compressor housing positioning device. (Refer to...) Figure 1 , Figure 2 and Figure 3The compressor housing positioning device includes a base plate 1, on which a support platform 2 for supporting the compressor housing is connected. On opposite sides of the support platform 2, there is a movable plate 3. A fixed frame 31 is connected to the movable plate 3. A clamping plate 311 is connected to the fixed frame 31. The clamping plate 311 is arc-shaped and conforms to the spiral ring of the compressor housing. A drive assembly 4 is provided on the base plate 1 for driving the two movable plates 3 to move closer or further apart. A plunger 5 is provided on one side of the support platform 2 for inserting into the circular tube of the compressor housing. The end of the plunger 5 inserted into the circular tube of the compressor housing is chamfered. The diameter of the plunger 5 is larger than the diameter of the circular tube of the compressor housing. A movable assembly 6 is provided on the base plate 1 for moving the plunger 5. The drive assembly 4 and the movable assembly 6 use the same power source.

[0022] The drive assembly 4 synchronously controls the clamping plates 311 on both sides to clamp the spiral ring of the compressor housing, and the movable assembly 6 drives the plunger 5 to be inserted into the circular tube, achieving synchronous rigid fixation of the spiral ring and the circular tube. Compared with the single mandrel positioning of the existing technology, this significantly improves the overall stability during processing, effectively suppresses vibration, and is especially suitable for drilling of circular tube parts.

[0023] The drive assembly 4 includes a first fixed bearing 41, a bidirectional threaded rod 42, a nut seat 43, a first guide rod 44, and a drive motor 45. The first fixed bearing 41 is mounted on the base plate 1, and one first fixed bearing 41 is provided on each of the opposite sides of the support platform 2. The bidirectional threaded rod 42 is connected between the two first fixed bearings 41. The support platform 2 has a through slot for the bidirectional threaded rod 42 to pass through. The drive motor 45 is mounted on the base plate 1, and the output shaft of the drive motor 45 is coaxially connected to the bidirectional threaded rod 42 through a coupling. The nut seat 43 is connected to the bidirectional threaded rod 42, and two nut seats 43 are provided on the bidirectional threaded rod 42. The two nut seats 43 are symmetrically arranged on both sides of the support platform 2. The first guide rod 44 is connected between the two first fixed bearings 41 and is arranged parallel to the bidirectional threaded rod 42. The nut seat 43 is slidably mounted on the first guide rod 44, and the nut seat 43 has a first guide hole for the first guide rod 44 to pass through.

[0024] The active component 6 includes a second fixed bearing 61, a lead screw 62, a ball bearing seat 63, a driving bevel gear 64, a driven bevel gear 65, a connecting block 66, and a second guide rod 67. The second fixed bearing 61 is connected to the base plate 1, and two second fixed bearings 61 are provided on the base plate 1. The lead screw 62 connects the two second fixed bearings 61 and is arranged in a direction perpendicular to the bidirectional threaded rod 42 in the drive component 4. The driving bevel gear 64 is connected to one end of the bidirectional threaded rod 42 in the drive component 4, and the driven bevel gear 65 is connected to the ball bearing seat 63. At one end of lever 62, driving bevel gear 64 and driven bevel gear 65 mesh with each other. Ball bearing seat 63 is connected to connecting block 66 and lead screw 62. Second guide rod 67 is connected between two second fixed bearings 61. Second guide rod 67 and lead screw 62 are arranged parallel to each other. Connecting block 66 is slidably disposed on second guide rod 67. Second guide hole for second guide rod 67 to pass through is opened on connecting block 66. Plunger 5 is disposed on connecting block 66. Shock-absorbing buffer assembly 7 is disposed between connecting block 66 and plunger 5.

[0025] The drive assembly 4 and the moving assembly 6 use the same drive motor 45. The linkage control of the bidirectional threaded rod 42 and the lead screw 62 is realized through the bevel gear set. This design simplifies the transmission structure, reduces energy consumption and maintenance costs, and at the same time ensures the synchronization of clamping and piston 5 pushing action, thereby improving positioning efficiency.

[0026] The shock absorption and buffer assembly 7 includes a first spring seat 71, a second spring seat 72, a buffer spring 73, a mounting cylinder 74, a cylinder cover 75, a movable rod 76, and a sliding plate 77. The cylinder cover 75 is connected to the opening of the mounting cylinder 74. The movable rod 76 passes through the cylinder cover 75 and is disposed inside the mounting cylinder 74. The axis of the movable rod 76 is collinear with the axis of the mounting cylinder 74. The sliding plate 77 is fixedly connected to the end of the movable rod 76 located inside the mounting cylinder 74. The side wall of the sliding plate 77 slides against the inner wall of the mounting cylinder 74. The mounting cylinder 74 is filled with damping oil. The sliding plate 77 has an oil hole for the damping oil to pass through. The first spring seat 71 and the second spring seat 72 are respectively connected to the ends of the mounting cylinder 74 and the movable rod 76. The first spring seat 71 is connected to the connecting block 66. The second spring seat 72 is connected to the plunger 5. The buffer spring 73 is sleeved on the outside of the mounting cylinder 74. One end of the buffer spring 73 abuts against the first spring seat 71, and the other end abuts against the second spring seat 72.

[0027] The shock absorption and buffer assembly 7 adopts a dual shock absorption mechanism of damping oil and buffer spring 73: the oil hole of the slide plate 77 absorbs high-frequency vibration through the flow of damping oil, while the buffer spring 73 provides elastic support. This structure can dynamically adjust the impact load during the processing, avoid workpiece damage caused by rigid contact, and extend the service life of the device.

[0028] A positioning post 21 is connected to the support platform 2, which passes through the hole in the compressor housing. The positioning post 21 is set in a direction perpendicular to the support platform 2 and is located at the center of the support platform 2.

[0029] A positioning plate 22 is connected to the support platform 2 for the circular tube of the compressor housing to fit together, and the positioning plate 22 is set in a direction perpendicular to the support platform 2.

[0030] When assembling the compressor housing, the positioning pin 21 is passed through the central hole of the compressor housing, and the round tube of the compressor housing is pressed against the positioning plate 22, which can quickly complete the initial positioning of the compressor housing on the support platform 2.

[0031] The implementation principle of a compressor housing positioning device in this application embodiment is as follows: When positioning the compressor housing, firstly, the positioning pin 21 is passed through the central hole of the compressor housing, and the circular tube of the compressor housing is pressed against the positioning plate 22. Then, the drive motor 45 drives the bidirectional threaded rod 42 to rotate. Under the guiding and limiting action of the first guide rod 44, the two nut seats 43 can move along the length direction of the bidirectional threaded rod 42. The two nut seats 43 move closer to each other, so that the clamping plates 311 on the two movable plates 3 move closer to each other to clamp and fix the side wall of the spiral ring of the compressor housing. At the same time, the bidirectional threaded rod 42... The active bevel gear 64 and driven bevel gear 65 work together to drive the lead screw 62 to rotate. Under the guidance and limiting action of the second guide rod 67, the connecting block 66 moves along the length of the lead screw 62, so that the plunger 5 on the connecting block 66 is inserted into the round tube of the compressor housing to fix the round tube. During the insertion of the plunger 5, the movable rod 76 drives the slide plate 77 to move. The oil hole of the slide plate 77 absorbs high-frequency vibration through the flow of damping oil, and the buffer spring 73 provides elastic support. This structure can dynamically adjust the impact load during the processing and avoid workpiece damage caused by rigid contact.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be pointed out that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A compressor housing positioning device, characterized in that: The system includes a base plate (1), on which a support platform (2) for supporting the compressor housing is connected. On opposite sides of the support platform (2), there is a movable plate (3). A fixed frame (31) is connected to the movable plate (3), and a clamping plate (311) is connected to the fixed frame (31). The clamping plate (311) is arc-shaped and conforms to the spiral ring of the compressor housing. A drive assembly (4) for driving the two movable plates (3) to move closer or further apart is provided on the base plate (1). A plunger (5) for inserting into the circular tube of the compressor housing is provided on one side of the support platform (2). The end of the plunger (5) inserted into the circular tube of the compressor housing is chamfered. The diameter of the plunger (5) is larger than the diameter of the circular tube of the compressor housing. A movable assembly (6) for moving the plunger (5) is provided on the base plate (1). The drive assembly (4) and the movable assembly (6) use the same power source.

2. The compressor housing positioning device according to claim 1, characterized in that: The drive assembly (4) includes a first fixed bearing (41), a bidirectional threaded rod (42), a nut seat (43), a first guide rod (44), and a drive motor (45). The first fixed bearing (41) is mounted on the base plate (1), and there is one first fixed bearing (41) on each of the opposite sides of the support platform (2). The bidirectional threaded rod (42) is connected between the two first fixed bearings (41). The support platform (2) has a through slot for the bidirectional threaded rod (42) to pass through. The drive motor (45) is mounted on the base plate (1), and the output shaft of the drive motor (45) is connected by a coupling. The device is coaxially connected to the bidirectional threaded rod (42). The nut seat (43) is connected to the bidirectional threaded rod (42). There are two nut seats (43) on the bidirectional threaded rod (42). The two nut seats (43) are symmetrically arranged on both sides of the support platform (2). The first guide rod (44) is connected between two first fixed bearings (41). The first guide rod (44) and the bidirectional threaded rod (42) are arranged parallel to each other. The nut seat (43) is slidably arranged on the first guide rod (44). The nut seat (43) is provided with a first guide hole for the first guide rod (44) to pass through.

3. The compressor housing positioning device according to claim 1, characterized in that: The movable component (6) includes a second fixed bearing (61), a lead screw (62), a ball bearing seat (63), a driving bevel gear (64), a driven bevel gear (65), a connecting block (66), and a second guide rod (67). The second fixed bearing (61) is connected to the base plate (1), and two second fixed bearings (61) are provided on the base plate (1). The lead screw (62) is connected between the two second fixed bearings (61) and is arranged in a direction perpendicular to the bidirectional threaded rod (42) in the drive assembly (4). The driving bevel gear (64) is connected to one end of the bidirectional threaded rod (42) in the drive assembly (4), and the driven bevel gear (65) is connected to the lead screw. At one end of (62), the driving bevel gear (64) and the driven bevel gear (65) mesh with each other. The ball bearing seat (63) is connected to the connecting block (66). The ball bearing seat (63) is connected to the lead screw (62). The second guide rod (67) is connected between two second fixed bearings (61). The second guide rod (67) and the lead screw (62) are arranged parallel to each other. The connecting block (66) is slidably disposed on the second guide rod (67). The connecting block (66) has a second guide hole for the second guide rod (67) to pass through. The plunger (5) is disposed on the connecting block (66). A shock-absorbing buffer assembly (7) is disposed between the connecting block (66) and the plunger (5).

4. A compressor housing positioning device according to claim 3, characterized in that: The shock-absorbing and buffering assembly (7) includes a first spring seat (71), a second spring seat (72), a buffer spring (73), a mounting cylinder (74), a cylinder cover (75), a movable rod (76), and a sliding plate (77). The cylinder cover (75) is connected to the opening of the mounting cylinder (74). The movable rod (76) passes through the cylinder cover (75) and is disposed inside the mounting cylinder (74). The axis of the movable rod (76) is collinear with the axis of the mounting cylinder (74). The sliding plate (77) is fixedly connected to the end of the movable rod (76) located inside the mounting cylinder (74). The sidewall of the sliding plate (77) slides against the mounting cylinder. The inner wall of the cylinder (74) is filled with damping oil. The slide plate (77) has an oil hole for the damping oil to pass through. The first spring seat (71) and the second spring seat (72) are respectively connected to the end of the mounting cylinder (74) and the movable rod (76). The first spring seat (71) is connected to the connecting block (66). The second spring seat (72) is connected to the plunger (5). The buffer spring (73) is sleeved on the outside of the mounting cylinder (74). One end of the buffer spring (73) abuts against the first spring seat (71), and the other end abuts against the second spring seat (72).

5. A compressor housing positioning device according to claim 1, characterized in that: The support platform (2) is connected to a positioning column (21) that passes through the hole in the compressor housing. The positioning column (21) is arranged in a direction perpendicular to the support platform (2) and is located at the center of the support platform (2).

6. A compressor housing positioning device according to claim 1, characterized in that: The support platform (2) is connected to a positioning plate (22) for fitting the cylindrical tube of the compressor housing. The positioning plate (22) is arranged in a direction perpendicular to the support platform (2).

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