A kind of supercharger nozzle ring machining with locating tooling

Abstract

The utility model discloses a kind of aligning tool for supercharger nozzle ring machining, the utility model relates to the technical field of machining. Including nozzle ring, the outer wall of the nozzle ring is fixedly connected with vane, further include: aligning component, the side of aligning component close to vane is slidably connected with adjusting assembly, the adjusting assembly includes protective cover, the inside rotationally connected with gear of protective cover, the upper and lower of gear are all meshingly connected with rack bar;By rotating handle, aligning block can be driven to move flexibly, without replacing whole tooling, only simple adjustment can adapt to the processing needs of different outer diameter, different vane distribution density, reduce tooling change time and inventory cost, on the convenience of operation, aligning process step is clear, operator can complete adjustment by pulling locking rod, rotating handle, quickly confirm in combination with pointer and scale, after processing, reverse operation can reset tooling, replace repeatedly trial processing workpiece, shorten single-piece aligning time-consuming.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a positioning tooling for machining a turbocharger nozzle ring. Background Technology

[0002] Traditional tooling often uses fixed-specification positioning blocks or bolt tightening structures. For nozzle rings with different diameters and different numbers of blades, the entire positioning assembly needs to be replaced, which not only increases tooling inventory costs but also prolongs changeover and adjustment time, making it unsuitable for batch processing scenarios of multi-specification nozzle rings. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a positioning fixture for machining turbocharger nozzle rings, which solves the problem of poor flexibility.

[0005] (II) Technical Solution

[0006] To solve the above problems, this utility model achieves the following technical solution: a positioning fixture for machining a turbocharger nozzle ring, including a nozzle ring, with blades fixedly connected to the outer wall of the nozzle ring, and further including: a positioning component, with an adjusting component slidably connected to the side of the positioning component near the blades; the adjusting component includes a protective cover, with a gear rotatably connected inside the protective cover, and gear racks meshing with the upper and lower sides of the gear, with slide rails provided on both sides of the gear, and pointers sleeved on the outer wall of the slide rails. The gear and gear racks in the adjusting component cooperate to realize the adjustment of the positioning component, eliminating the need to replace the entire fixture for different specifications of nozzle rings, thus reducing the inventory cost and changeover time of the fixture.

[0007] Preferably, the alignment component includes a guide plate, an alignment block slidably connected to the guide plate near the outer wall of the blade, a locking hole on the outer wall of the guide plate away from the alignment block, a handle fixedly connected to one end of the central shaft of the gear passing through the guide plate, a locking rod slidably connected to the inner wall of the handle, a tension spring sleeved on the outside of the locking rod, a protective sleeve sleeved on the outside of the tension spring, and an alignment groove on the inner wall of the alignment block. The alignment groove on the inner wall of the alignment block can be adapted to the specific structure of the blade, is the same as the machining datum, and leaves a gap of 0.1 mm for easy loading and unloading.

[0008] Preferably, the gear is rotatably connected to the guide plate, the guide plate is fixedly connected to the outer wall of the rack, the outer wall of the slide rail is fixedly connected to the outer wall of the guide plate near the blade, and the side of the alignment block near the protective cover is fixedly connected to the outer wall of the pointer. The synchronous movement of the pointer and the alignment block provides the operator with intuitive position feedback, making it easy to quickly determine whether the position of the alignment block meets the processing requirements and improving the alignment efficiency.

[0009] Preferably, the protective cover is fixedly connected to the guide plate, the outer wall of the slide rail is slidably connected to the inner wall of the guide plate, the outer wall of the slide rail has a scale, the toothed rod is slidably connected to the protective cover, the outer wall of the locking rod near the guide plate is inserted into the inner wall of the locking hole, one end of the tension spring is fixedly connected to the outer wall of the locking rod, and the other end of the tension spring is fixedly connected to the outer wall of the handle. The scale on the outer wall of the slide rail cooperates with the pointer to provide a position reference for the adjustment process. The operator can control the movement distance of the alignment block according to the scale, reducing adjustment errors.

[0010] (III) Beneficial Effects

[0011] This utility model provides an alignment fixture for machining turbocharger nozzle rings. It has the following advantages:

[0012] (I) This type of alignment fixture for turbocharger nozzle ring machining can drive the alignment block to move flexibly by turning the handle. There is no need to replace the entire fixture. Simple adjustment can adapt to the machining requirements of different outer diameters and different blade distribution densities, reducing fixture changeover time and inventory costs. It can meet the needs of multi-batch and multi-specification machining scenarios. In terms of operation convenience, the alignment process is clear. The operator can complete the adjustment by pulling the locking rod and turning the handle. Combined with the pointer and scale, it can be quickly confirmed. After machining, the reverse operation can be used to reset the fixture and replace the workpiece for repeated trial machining, shortening the alignment time of a single piece, improving production efficiency, and reducing the skill requirements of operators and training costs.

[0013] (II) This alignment fixture for turbocharger nozzle ring machining utilizes an alignment groove on the inner wall of the alignment block to adapt to the transition surface of the blade edge or root. For irregularly shaped blades, multi-point contact can eliminate positioning gaps and prevent datum offset. The slide rail constrains the sliding trajectory of the alignment block, and the pointer and scale provide visual feedback, reducing human experience errors and ensuring minimal deviation between the blade and the machining datum. Simultaneously, a tension spring drives the locking rod to engage with the locking hole, stabilizing the position and resisting the influence of machining vibrations on the alignment block. This prevents datum displacement leading to dimensional deviations, significantly reducing the nozzle ring machining defect rate and improving the assembly and operational stability of the turbocharger. Attached Figure Description

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

[0015] Figure 2 This is a partial structural diagram of the alignment component of this utility model;

[0016] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A;

[0017] Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0018] In the diagram: 1. Nozzle ring; 2. Alignment assembly; 21. Guide plate; 22. Alignment block; 24. Locking hole; 25. Handle; 26. Protective sleeve; 27. Locking rod; 28. Tension spring; 3. Adjustment assembly; 31. Protective cover; 32. Gear rack; 33. Gear; 34. Slide rail; 35. Pointer; 4. Blade. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution for a alignment tooling for machining a turbocharger nozzle ring, including a nozzle ring 1, with blades 4 fixedly connected to the outer wall of the nozzle ring 1, and also including: an alignment component 2, with an adjustment component 3 slidably connected to the side of the alignment component 2 near the blades 4; the adjustment component 3 includes a protective cover 31, with a gear 33 rotatably connected inside the protective cover 31, and a rack 32 meshing with the upper and lower sides of the gear 33, with slide rails 34 on both sides of the gear 33, and a pointer 35 sleeved on the outer wall of the slide rails 34.

[0021] The alignment component 2 includes a guide plate 21. An alignment block 22 is slidably connected to the outer wall of the guide plate 21 near the blade 4. A locking hole 24 is provided on the outer wall of the guide plate 21 away from the alignment block 22. A handle 25 is fixedly connected to one end of the central shaft of the gear 33 through the guide plate 21. A locking rod 27 is slidably connected to the inner wall of the handle 25. A tension spring 28 is sleeved on the outside of the locking rod 27. A protective sleeve 26 is sleeved on the outside of the tension spring 28. An alignment groove is provided on the inner wall of the alignment block 22.

[0022] The gear 33 is rotatably connected to the guide plate 21, the guide plate 21 is fixedly connected to the outer wall of the rack 32, the outer wall of the slide rail 34 is fixedly connected to the outer wall of the guide plate 21 near the blade 4, and the aligning block 22 is fixedly connected to the outer wall of the pointer 35 near the protective cover 31.

[0023] The protective cover 31 is fixedly connected to the guide plate 21. The outer wall of the slide rail 34 is slidably connected to the inner wall of the guide plate 21. The outer wall of the slide rail 34 has a scale. The toothed rod 32 is slidably connected to the protective cover 31. The outer wall of the locking rod 27 near the guide plate 21 is inserted into the inner wall of the locking hole 24. One end of the tension spring 28 is fixedly connected to the outer wall of the locking rod 27. The other end of the tension spring 28 is fixedly connected to the outer wall of the handle 25.

[0024] In use, the nozzle ring 1 to be processed is first placed on the preset support structure of the processing platform, so that the axis of the nozzle ring 1 is initially aligned with the main shaft of the processing equipment. At this time, the blades 4 are distributed in a ring on the outer wall of the nozzle ring 1. The processing reference of the blades 4 needs to be determined by the alignment fixture. When the alignment process is started, the guide plate 21 in the alignment component 2 serves as the installation and guiding reference of the entire fixture. Its position is fixed in advance with the processing platform to ensure the stability of the overall structure during subsequent adjustment. The adjustment component 3 can flexibly adjust its own position according to the distribution position and size of the blades 4 through the sliding connection with the guide plate 21, in preparation for subsequent positioning.

[0025] The adjustment component 3 uses gear 33 and rack 32 as the core for position adjustment. After the operator unlocks the handle 25 and the locking lever 27, the gear 33 rotates around its central axis inside the protective cover 31. Since the gear 33 is meshed with the rack 32 at both the top and bottom, and the rack 32 is fixed to the guide plate 21 and slides with the protective cover 31, the rotation of the gear 33 is converted into linear movement of the rack 32. When the gear 33 rotates clockwise, the upper and lower racks 32 move away from the gear 33 in opposite directions. When the gear 33 rotates counterclockwise, the upper and lower racks 32 move closer to the gear 33 in opposite directions, thereby driving the alignment block 22 associated with the rack 32 to slide along the outer wall of the guide plate 21.

[0026] During this process, the slide rails 34 on both sides of the gear 33 provide guiding constraints for the sliding of the alignment block 22, preventing the alignment block 22 from shifting laterally due to transmission deviation. At the same time, the pointer 35, which is fixedly connected to the alignment block 22, moves synchronously along the slide rail 34 with the alignment block 22. The operator can read the position change of the pointer 35 through the scale on the outer wall of the slide rail 34, intuitively judge the relative distance between the alignment block 22 and the blade 4, and gradually adjust the alignment block 22 to the preset area close to the blade 4.

[0027] When the alignment block 22 moves to the vicinity of the blade 4, the alignment block 22 achieves precise contact with the blade 4 through the alignment groove on its inner wall. The outline of the alignment groove matches the edge or specific structure of the blade 4, such as the transition surface at the root of the blade 4. The operator can use the fine-tuning handle 25 to make the alignment groove gradually fit the surface of the blade 4. If the blade 4 has an irregular shape, the alignment groove can eliminate the positioning gap through multi-point contact with the blade 4, ensuring that there is no relative wobble between the alignment block 22 and the blade 4. At this time, the position of the blade 4 is defined by the alignment block 22 as the machining reference.

[0028] During this stage, the guide plate 21 provides stable sliding support for the alignment block 22, preventing it from tilting during the fitting process. Simultaneously, the protective cover 31 protects the internal gear 33 and rack 32, preventing external chips and dust from entering the transmission structure and affecting adjustment, ensuring smooth movement of the alignment block 22. Once the alignment block 22 is fully fitted with the blade 4 and the positioning reference is determined, its position is fixed via a locking structure. The operator releases the previously pulled-out locking rod 27, and the tension spring 28 outside the locking rod 27 releases its reset force, causing the locking rod 27 to move towards the guide plate 21 until one end of the locking rod 27 near the guide plate 21 inserts into the locking hole 24 on the outer wall of the guide plate 21, forming a relative fixation between the handle 25 and the guide plate 21. Since the handle 25 is fixed to the central axis of the gear 33, the position of the gear 33 is locked, thereby limiting the position of the alignment block 22 via the rack 32, preventing displacement of the alignment block 22 due to vibration during subsequent processing.

[0029] After locking, the positioning is confirmed again by the correspondence between pointer 35 and scale on slide rail 34. If pointer 35 is in the same position as the preset scale, it means that the positioning block 22 is accurately positioned and the processing flow can be started. If there is a deviation, the process can be repeated: first pull the locking rod 27, then fine adjust the handle 25, and finally relock until the positioning meets the requirements. In addition, the protective sleeve 26 outside the tension spring 28 can prevent the spring from being corroded by coolant and chips, ensuring the long-term reliable operation of the locking structure.

[0030] After a single nozzle ring 1 is processed, pull the locking rod 27 outward to disengage it from the locking hole 24, and rotate the handle 25 in the opposite direction to reset the gear 33 and rack 32, so that the alignment block 22 is away from the blade 4. The processed nozzle ring 1 can then be removed. After replacing it with a new nozzle ring 1 to be processed, repeat the above process: first, the reference is adapted, then the position is adjusted, then the positioning is fitted, and finally the locking is confirmed. This process enables continuous alignment of multiple batches of nozzle ring 1 without changing the overall structure of the tooling, and adapts to the processing requirements of different specifications of nozzle ring 1 and blade 4.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] 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 leveling fixture for machining a turbocharger nozzle ring, comprising a nozzle ring (1), wherein blades (4) are fixedly connected to the outer wall of the nozzle ring (1), characterized in that, Also includes: Alignment component (2), wherein an adjustment component (3) is slidably connected to the side of the alignment component (2) near the blade (4); The adjustment component (3) includes a protective cover (31), a gear (33) is rotatably connected inside the protective cover (31), a rack (32) is meshed with the gear (33) above and below, a slide rail (34) is provided on both sides of the gear (33), and a pointer (35) is sleeved on the outer wall of the slide rail (34).

2. The alignment fixture for machining a turbocharger nozzle ring according to claim 1, characterized in that: The alignment component (2) includes a guide plate (21). An alignment block (22) is slidably connected to the outer wall of the guide plate (21) near the blade (4). A locking hole (24) is provided on the outer wall of the guide plate (21) away from the alignment block (22). A handle (25) is fixedly connected to one end of the central shaft of the gear (33) that passes through the guide plate (21). A locking rod (27) is slidably connected to the inner wall of the handle (25). A tension spring (28) is sleeved on the outside of the locking rod (27). A protective sleeve (26) is sleeved on the outside of the tension spring (28). An alignment groove is provided on the inner wall of the alignment block (22).

3. The alignment fixture for machining a turbocharger nozzle ring according to claim 2, characterized in that: The gear (33) is rotatably connected to the guide plate (21), the guide plate (21) is fixedly connected to the outer wall of the rack (32), the outer wall of the slide rail (34) is fixedly connected to the outer wall of the guide plate (21) near the blade (4), and the alignment block (22) near the protective cover (31) is fixedly connected to the outer wall of the pointer (35).

4. The alignment fixture for machining a turbocharger nozzle ring according to claim 2, characterized in that: The protective cover (31) is fixedly connected to the guide plate (21), the outer wall of the slide rail (34) is slidably connected to the inner wall of the guide plate (21), the outer wall of the slide rail (34) has a scale, the toothed rod (32) is slidably connected to the protective cover (31), the outer wall of the locking rod (27) near the guide plate (21) is inserted into the inner wall of the locking hole (24), one end of the tension spring (28) is fixedly connected to the outer wall of the locking rod (27), and the other end of the tension spring (28) is fixedly connected to the outer wall of the handle (25).

Images