Clamp for machining diffuser plate of turbocharger

Abstract

The utility model belongs to the technical field of clamps, and discloses a turbocharger diffuser plate machining clamp which comprises a bottom plate, and a plurality of arc-shaped clamping plates which are uniform about the axis of the bottom plate are arranged on the bottom plate. The bottom plate is further provided with a driving mechanism used for driving the multiple arc-shaped clamping plates to move towards the side close to or away from the axis of the bottom plate at the same time, and each arc-shaped clamping plate is provided with a limiting assembly used for limiting the clamped turbocharger diffusion plate in the vertical direction. The limiting assembly effectively limits the clamped turbocharger diffuser plate in the vertical direction, the stability of the turbocharger diffuser plate in the machining process is guaranteed, and the machining quality can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, especially relates to a turbine supercharger diffuser plate processing clamp. BACKGROUND

[0002] The diffuser plate of the turbine supercharger is an important component in the turbocharging system, its main function is to guide and diffuse the airflow from the turbine blade, so that it can enter the cylinder of the engine more evenly, thereby improving the intake pressure and power output of the engine. In addition, the diffuser plate also has certain heat dissipation function, which can effectively reduce the temperature of the turbine supercharger and prevent it from overheating and damaging.

[0003] The main components of the turbine supercharger diffuser plate include plate body, fastening ring, boss, center shaft hole, side wall, support rib, reinforcing rib and weight reduction cavity, which together constitute the physical structure of the diffuser plate to ensure its stability and functionality. The shape of the turbine supercharger diffuser plate is usually circular. When setting, fastening ring, boss, center shaft hole and other components or features on the plate body of the turbine supercharger diffuser plate, a clamp is usually used to clamp the turbine supercharger diffuser plate. The clamp in the prior art usually clamps the turbine supercharger diffuser plate from the side. There is usually no corresponding limiting measure for the top and bottom of the diffuser plate. During the processing of the diffuser plate, the diffuser plate may exist only in the vertical direction, which affects the processing quality of the diffuser plate. Therefore, the related technology needs to be improved and designed. SUMMARY

[0004] In order to solve the above problems, the utility model provides a turbine supercharger diffuser plate processing clamp.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a turbine supercharger diffuser plate processing clamp, including the bottom plate, the bottom plate is provided with a plurality of arc clamping plates which are uniform about the axis of the bottom plate, the bottom plate is also provided with a driving mechanism for driving a plurality of arc clamping plates to move towards one side close to or away from the axis of the bottom plate at the same time, each arc clamping plate is provided with a limiting component for limiting the turbine supercharger diffuser plate clamped in the vertical direction.

[0006] By adopting the above technical scheme, the driving mechanism can drive a plurality of arc clamping plates to move towards one side close to or away from the axis of the bottom plate at the same time, so that the plurality of arc clamping plates cooperate and clamp the turbine supercharger diffuser plate to be processed from the side. The limiting component effectively limits the turbine supercharger diffuser plate clamped in the vertical direction, ensuring the stability of the turbine supercharger diffuser plate during processing and improving the processing quality.

[0007] Further, the limiting assembly comprises a supporting plate detachably connected to the bottom of the arc-shaped clamping plate and a limiting unit arranged on the arc-shaped clamping plate and used for limiting the top of the turbocharger diffuser plate.

[0008] By adopting the above technical scheme, the supporting plate supports the bottom of the turbocharger diffuser plate during processing, and the limiting unit effectively limits the top of the turbocharger diffuser plate, so as to ensure the stability of the turbocharger diffuser plate during processing.

[0009] Further, the limiting unit comprises a connecting block arranged through the top of the arc-shaped clamping plate and slidably connected, a connecting rod fixed to the lower end of the connecting block, a nut sleeved on the connecting rod and threadedly connected with the connecting rod, a mounting rod fixed to the upper end of the connecting block, a limiting plate sleeved on the mounting rod and rotationally connected with the mounting rod, and a spring sleeved on the mounting rod and fixed between the limiting plate and the connecting block, the supporting plate is provided with a through hole through which the connecting rod passes, the nut is located at the bottom of the supporting plate, and the distance between the top of the arc-shaped clamping plate and the bottom of the arc-shaped clamping plate is less than the thickness of the turbocharger diffuser plate to be processed.

[0010] By adopting the above technical scheme, under the elastic force of the spring, the bottom of the limiting plate abuts against the top of the turbocharger diffuser plate to be processed, and multiple limiting plates are cooperated to effectively limit the top of the turbocharger diffuser plate, so as to ensure the stability of the turbocharger diffuser plate during processing and improve the processing quality of the product.

[0011] Further, the connecting block has a rectangular cross section.

[0012] By adopting the above technical scheme, the rotation of the arc-shaped clamping plate during clamping of the diffuser plate is avoided, and the stability of the diffuser plate during processing is ensured.

[0013] Further, the side wall of the connecting block is integrally formed with a protruding edge near the upper end of the connecting block, and the bottom of the protruding edge abuts against the top of the arc-shaped clamping plate.

[0014] By adopting the above technical scheme, the protruding edge effectively limits the top of the arc-shaped clamping plate, the bottom of the supporting plate limits the bottom of the arc-shaped clamping plate, and after the nut is tightened, the stability of the arc-shaped clamping plate during use is ensured. When clamping diffuser plates of different diameters, the worker only needs to unscrew the nut, disassemble the limiting unit, replace the arc-shaped clamping plate that is suitable and re-fix, so as to clamp the diffuser plates of different diameters, so that the worker can use the special tool to process the diffuser plate.

[0015] Further, a sleeve is arranged through the limiting plate and is rotatably connected with the limiting plate, the mounting rod penetrates the sleeve and cooperates with the sleeve, the limiting plate is composed of two plate bodies which are identical in structure, the two plate bodies are both provided with an arc-shaped groove which cooperates with the sleeve on the side close to each other, the upper end of the spring is fixed with the bottom of the sleeve, and the lower end of the spring is fixed with the upper end of the connecting block.

[0016] By adopting the above technical scheme, when the pressure expansion plate is placed above the bottom plate, the worker only needs to rotate the limiting plate so that the limiting plate is located on the side deviating from the axis of the bottom plate, and then the pressure expansion plate can be placed on the plurality of supporting plates, and when the top of the pressure expansion plate is limited, the worker only needs to rotate the limiting plate so that the bottom of the limiting plate abuts against the top of the pressure expansion plate, thereby ensuring the stability of the pressure expansion plate during processing. The sleeve is rotatably connected with the limiting plate, thereby avoiding the over-twisting of the limiting plate due to the direct fixing of the limiting plate with the spring.

[0017] Further, the top of one of the plate bodies is fixed with a handle, and the side close to the axis of the bottom plate of the arc-shaped clamping plate is attached and fixed with a rubber sheet.

[0018] By adopting the above technical scheme, the handle is arranged to facilitate the worker to rotate the limiting plate, and the rubber sheet is arranged to protect the edge of the pressure expansion plate, thereby reducing the probability of the pressure expansion plate being pinched.

[0019] Further, the bottom plate is provided with a sliding groove extending towards the axis close to the bottom plate, the number of the sliding grooves is equal to that of the arc-shaped clamping plates and the positions are one-to-one corresponding, the position close to the axis of the bottom plate is provided with a mounting groove in communication with the sliding groove, the number of the mounting grooves is equal to that of the sliding grooves, and the bottom of the bottom plate is provided with a mounting slot; the driving mechanism comprises a transmission assembly, the number of the transmission assemblies is equal to that of the arc-shaped clamping plates and the positions are one-to-one corresponding, the transmission assembly comprises a threaded rod rotatably installed in the sliding groove, a sliding block sleeved on the threaded rod and threadedly connected with the threaded rod, and a driven bevel gear fixed to one end of the threaded rod and located in the mounting groove; the sliding block is in sliding cooperation with the sliding groove, the top of the sliding block is fixed with the bottom of the supporting plate, and the driving mechanism further comprises a driving assembly for driving the plurality of driven bevel gears to synchronously rotate.

[0020] Further, the bottom of the bottom plate is uniformly provided with a plurality of mounting columns which are uniformly distributed about the axis of the bottom plate, the driving assembly comprises an L-shaped plate fixed to the bottom of the bottom plate, a motor fixed to the top of the horizontal part of the L-shaped plate, and a driving bevel gear fixed to the output end of the motor and meshing with the driven bevel gear, and the driving bevel gear is located in the mounting slot.

[0021] By adopting the technical scheme, the motor drives the driving bevel gear to rotate after the motor works, so that the driven bevel gear meshing with the driving bevel gear and the threaded rod fixed with the driven bevel gear are rotated, the sliding block and the sliding groove are slidably connected due to the threaded connection between the threaded rod and the sliding block, and the sliding block, the supporting plate and the arc-shaped clamping plate move towards the side close to or away from the inner side of the bottom plate until the multiple arc-shaped clamping plates cooperate and clamp the processed diffuser plate, and then the motor is turned off.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1、In the application, the driving mechanism can drive multiple arc-shaped clamping plates to move towards the side close to or away from the axis of the bottom plate at the same time, so that the multiple arc-shaped clamping plates cooperate and clamp the periphery of the turbocharger diffuser plate to be processed, the limiting assembly effectively limits the turbocharger diffuser plate to be clamped in the vertical direction, and the stability of the turbocharger diffuser plate in the processing process is ensured, which is beneficial to improving the processing quality.

[0024] 2、In the application, the supporting plate supports the bottom of the turbocharger diffuser plate in the processing process, and the limiting unit effectively limits the top of the turbocharger diffuser plate, so as to ensure the stability of the turbocharger diffuser plate in the processing process.

[0025] 3、In the application, under the elastic force of the spring, the bottom of the limiting plate abuts against the top of the turbocharger diffuser plate to be processed, multiple limiting plates cooperate and effectively limit the top of the turbocharger diffuser plate, so as to ensure the stability of the turbocharger diffuser plate in the processing process, which is beneficial to improving the processing quality of the product. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the overall structure schematic view of the embodiment of the utility model;

[0027] Figure 2 is Figure 1 is the structure schematic view of another perspective;

[0028] Figure 3 is the structure schematic view of the utility model embodiment for highlighting the limiting assembly;

[0029] Figure 4 is Figure 3 is the enlarged schematic view of A in the figure;

[0030] Figure 5 is the exploded view of the utility model embodiment for highlighting the limiting assembly.

[0031] In the figure: 1, the base plate; 11, the sliding groove; 12, the installation groove; 13, the mounting groove; 14, the mounting column; 2, the arc-shaped clamping plate; 21, the rubber sheet; 3, the driving mechanism; 31, the transmission assembly; 311, the threaded rod; 312, the sliding block; 313, the driven bevel gear; 32, the driving assembly; 321, the L-shaped plate; 322, the motor; 323, the driving bevel gear; 4, the limiting assembly; 41, the supporting plate; 411, the perforation; 42, the limiting unit; 421, the connecting block; 4211, the convex edge; 422, the connecting rod; 423, the nut; 424, the mounting rod; 425, the limiting plate; 4251, the plate body; 42511, the arc-shaped groove; 426, the spring; 5, the sleeve; 6, the handle. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0033] As Figures 1-5 shown, the present application discloses a kind of turbine supercharger diffuser plate processing clamp, including base plate 1, base plate 1 is provided with multiple about the axis of base plate 1 Even arc-shaped clamping plate 2, base plate 1 is also provided with the driving mechanism 3 for driving multiple arc-shaped clamping plate 2 simultaneously towards the side of approaching or moving away from the axis of base plate 1 Motion, each arc-shaped clamping plate 2 is provided with limiting assembly 4 for limiting the turbine supercharger diffuser plate being clamped in vertical direction.

[0034] Driving mechanism 3 can drive multiple arc-shaped clamping plate 2 simultaneously towards the side of approaching or moving away from the axis of base plate 1 Motion, so that multiple arc-shaped clamping plate 2 cooperates and clamps the periphery of the turbine supercharger diffuser plate to be processed, limiting assembly 4 effectively limits the turbine supercharger diffuser plate being clamped in vertical direction, guarantee the stability in the process of turbine supercharger diffuser plate processing, it is favorable to improve processing quality.

[0035] The limiting assembly 4 comprises a supporting plate 41 detachably connected to the bottom of the arc-shaped clamping plate 2 and a limiting unit 42 arranged on the arc-shaped clamping plate 2 and used for limiting the top of the turbocharger diffuser plate. The limiting unit 42 comprises a connecting block 421 penetratingly arranged on the top of the arc-shaped clamping plate 2 and slidingly fitted, a connecting rod 422 fixed to the lower end of the connecting block 421, a nut 423 sleeved on the connecting rod 422 and threadedly connected with the connecting rod 422, a mounting rod 424 fixed to the upper end of the connecting block 421, a limiting plate 425 sleeved on the mounting rod 424 and rotationally connected with the mounting rod 424, and a spring 426 sleeved on the mounting rod 424 and fixed between the limiting plate 425 and the connecting block 421. The supporting plate 41 is provided with a through hole 411 through which the connecting rod 422 penetrates, and the nut 423 is located at the bottom of the supporting plate 41. The distance between the top of the arc-shaped clamping plate 2 and the bottom of the arc-shaped clamping plate 2 is less than the thickness of the turbocharger diffuser plate to be machined.

[0036] It is worth noting that the supporting plate 41 supports the bottom of the turbocharger diffuser plate during the machining process. Under the elastic force of the spring 426, the bottom of the limiting plate 425 abuts against the top of the turbocharger diffuser plate to be machined. Multiple limiting plates 425 cooperate and effectively limit the top of the turbocharger diffuser plate, thereby ensuring the stability of the turbocharger diffuser plate during the machining process and facilitating the improvement of the product machining quality.

[0037] In the embodiment, the cross section of the connecting block 421 is rectangular, which avoids the rotation of the arc-shaped clamping plate 2 during the clamping of the diffuser plate, thereby facilitating the stability of the diffuser plate during the machining process.

[0038] The connecting block 421 is integrally formed with a protrusion 4211 near the upper end of the side wall of the connecting block 421, and the bottom of the protrusion 4211 abuts against the top of the arc-shaped clamping plate 2. The protrusion 4211 effectively limits the top of the arc-shaped clamping plate 2, the bottom of the supporting plate 41 limits the bottom of the arc-shaped clamping plate 2, and the nut 423 is tightened to ensure the stability of the arc-shaped clamping plate 2 during use. When clamping diffuser plates of different diameters, the worker only needs to unscrew the nut 423, disassemble the limiting unit 42 (actually, the connecting block 421 and the connecting rod 422 are removed from the top of the arc-shaped clamping plate 2), replace the appropriate arc-shaped clamping plate 2 and re-fix it, which facilitates the clamping of diffuser plates of different diameters, thereby facilitating the worker to use a special tool (for example, when a hole is opened in the diffuser plate, a hole opening tool is used, and the structure of the special tool is irrelevant to the technical problems to be solved and the purposes to be achieved of the present application, and does not need to be described in detail) to machine the diffuser plate.

[0039] A sleeve 5 is rotatably connected to the limiting plate 425 through the limiting plate 425. The mounting rod 424 passes through the sleeve 5 and cooperates with the sleeve 5. The limiting plate 425 is composed of two plates 4251 with the same structure. The two plates 4251 are provided with arc-shaped grooves 42511 that cooperate with the sleeve 5 on the side that is close to each other. The upper end of the spring 426 is fixed to the bottom of the sleeve 5, and the lower end of the spring 426 is fixed to the upper end of the connecting block 421.

[0040] When placing the diffuser plate above the base plate 1, the operator only needs to rotate the limiting plate 425 so that it is positioned on a side offset from the axis of the base plate 1, thus placing the diffuser plate onto the multiple support plates 41. When limiting the top of the diffuser plate, the operator simply rotates the limiting plate 425 so that its bottom abuts against the top of the diffuser plate, ensuring stability during the processing. The sleeve 5 is rotatably connected to the limiting plate 425, preventing excessive twisting that could occur if the limiting plate 425 were directly fixed to the spring 426.

[0041] To facilitate the rotation of the limiting plate 425 by the staff, a handle 6 is fixed to the top of one of the plates 4251. To effectively protect the expansion plate, a rubber sheet 21 is attached and fixed to the side of the arc-shaped clamping plate 2 near the axis of the base plate 1.

[0042] A sliding groove 11 extending toward the axis near the base plate 1 is provided through the base plate 1. The number of sliding grooves 11 is equal to the number of arc-shaped clamping plates 2 and their positions correspond one-to-one. A mounting groove 12 communicating with the sliding groove 11 is provided through the base plate 1 near its axis. The number of mounting grooves 12 is equal to the number of sliding grooves 11. An installation groove 13 is provided at the center of the bottom of the base plate 1. The drive mechanism 3 includes a transmission assembly 31. The number of transmission assemblies 31 is equal to the number of arc-shaped clamping plates 2 and their positions correspond one-to-one. In a one-to-one correspondence, the transmission assembly 31 includes a threaded rod 311 rotatably mounted in the slide groove 11, a sliding block 312 sleeved on the threaded rod 311 and threadedly connected to the threaded rod 311, and a driven bevel gear 313 fixed to one end of the threaded rod 311 and located in the mounting groove 12; the sliding block 312 is slidably engaged with the slide groove 11, and the top of the sliding block 312 is fixed to the bottom of the support plate 41. The drive mechanism 3 also includes a drive assembly 32 for driving multiple driven bevel gears 313 to rotate synchronously.

[0043] The bottom of the base plate 1 is evenly fixed with a plurality of mounting columns 14 evenly distributed about the axis of the base plate 1. The drive assembly 32 includes an L-shaped plate fixed to the bottom of the base plate 1, a motor 322 fixed to the top of the horizontal part of the L-shaped plate, and a drive bevel gear 323 fixed to the output end of the motor 322 and meshing with the driven bevel gear 313. The drive bevel gear 323 is located in the mounting groove 13.

[0044] When the motor 322 works, the driving bevel gear 323 is driven to rotate, so that the driven bevel gear 313 engaged with the driving bevel gear 323 and the threaded rod 311 fixed with the driven bevel gear 313 are rotated. Since the threaded rod 311 is threadedly connected with the sliding block 312, the sliding block 312 is slidably connected with the sliding groove 11, so that the sliding block 312, the supporting plate 41 and the arc-shaped clamping plates 2 are moved towards or away from the side of the bottom plate 1, until the arc-shaped clamping plates 2 are matched and clamped to the processed diffuser plate, and then the motor 322 is turned off.

[0045] The use principle of the clamp for processing a turbocharger diffuser plate in the embodiment is that the driving mechanism 3 can drive the arc-shaped clamping plates 2 to simultaneously move towards or away from the axis of the bottom plate 1, so that the arc-shaped clamping plates 2 are matched and clamped to the circumferential side of the turbocharger diffuser plate to be processed, and the limiting assembly 4 limits the clamped turbocharger diffuser plate in the vertical direction, so as to ensure the stability of the turbocharger diffuser plate during processing and improve the processing quality.

[0046] The preferred embodiments of the utility model are described above, and the protection scope of the utility model is not limited to the above-mentioned embodiments. Any technical scheme falling within the concept of the utility model belongs to the protection scope of the utility model. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the utility model are also considered as the protection scope of the utility model.

Claims

1. A clamp for turbocharger diffuser blade machining, characterized by: The application relates to a turbocharger variable geometry turbine (VGT) expander plate clamping device, which comprises a bottom plate (1) provided with a plurality of arc-shaped clamping plates (2) uniformly distributed around the axis of the bottom plate (1), and a driving mechanism (3) for driving the arc-shaped clamping plates (2) to move towards or away from the side of the axis of the bottom plate (1); each arc-shaped clamping plate (2) is provided with a limiting assembly (4) for limiting the VGT expander plate in the vertical direction. The limiting assembly (4) comprises a supporting plate (41) detachably connected to the bottom of the arc-shaped clamping plate (2) and a limiting unit (42) arranged on the arc-shaped clamping plate (2) and used for limiting the top of the VGT expander plate. The limiting unit (42) comprises a connecting block (421) penetratingly arranged on the top of the arc-shaped clamping plate (2) and slidingly matched, a connecting rod (422) fixed to the lower end of the connecting block (421), a nut (423) sleeved on the connecting rod (422) and threadedly connected with the connecting rod (422), an installation rod (424) fixed to the upper end of the connecting block (421), a limiting plate (425) sleeved on the installation rod (424) and rotationally connected with the installation rod (424), and a spring (426) sleeved on the installation rod (424) and fixed between the limiting plate (425) and the connecting block (421); the supporting plate (41) is provided with a through hole (411) for the connecting rod (422) to pass through, the nut (423) is located at the bottom of the supporting plate (41), and the distance between the top of the arc-shaped clamping plate (2) and the bottom of the arc-shaped clamping plate (2) is smaller than the thickness of the VGT expander plate to be machined.

2. The turbine expander diffuser plate machining fixture of claim 1 wherein: The connecting block (421) has a rectangular cross section.

3. The fixture of claim 2 wherein: The side wall of the connecting block (421) is integrally formed with a convex edge (4211) near the upper end of the connecting block (421), and the bottom of the convex edge (4211) is in abutment with the top of the arc-shaped clamping plate (2).

4. The fixture of claim 3 wherein: The limiting plate (425) is provided with a sleeve (5) penetratingly arranged on the limiting plate (425) and rotationally connected with the limiting plate (425), the installation rod (424) penetrates through the sleeve (5) and is matched with the sleeve (5), the limiting plate (425) is composed of two plate bodies (4251) which are identical in structure, the side of each plate body (4251) close to each other is provided with an arc-shaped groove (42511) matched with the sleeve (5), the upper end of the spring (426) is fixed with the bottom of the sleeve (5), and the lower end of the spring (426) is fixed with the upper end of the connecting block (421).

5. The turbine expander diffuser plate machining fixture of claim 4 wherein one of the first and second clamping members is a clamp ring. The plate body (4251) is fixed with a handle (6) at the top, and the side of the arc-shaped clamping plate (2) close to the axis of the bottom plate (1) is attached and fixed with a rubber sheet (21).

6. The fixture of claim 1 wherein: The bottom plate (1) is provided with a sliding groove (11) extending towards the axis close to the bottom plate (1), the number of the sliding groove (11) is equal to the number of the arc-shaped clamping plate (2) and one-to-one corresponding, the bottom plate (1) is provided with a setting groove (12) communicating with the sliding groove (11) close to the axis, the number of the setting groove (12) is equal to the number of the sliding groove (11), the bottom plate (1) is provided with a mounting groove (13) at the bottom center; The driving mechanism (3) comprises a transmission assembly (31), the number of the transmission assembly (31) is equal to the number of the arc-shaped clamping plate (2) and one-to-one corresponding, the transmission assembly (31) comprises a threaded rod (311) rotatably installed in the sliding groove (11), a sliding block (312) sleeved on the threaded rod (311) and threadedly connected with the threaded rod (311), and a driven bevel gear (313) fixed to one end of the threaded rod (311) and located in the setting groove (12); the sliding block (312) is in sliding fit with the sliding groove (11), the top of the sliding block (312) is fixed with the bottom of the supporting plate (41), and the driving mechanism (3) further comprises a driving assembly (32) for driving the plurality of driven bevel gears (313) to rotate synchronously.

7. The fixture of claim 6 wherein: The bottom plate (1) is uniformly provided with a plurality of mounting columns (14) uniformly distributed about the axis of the bottom plate (1), and the driving assembly (32) comprises an L-shaped plate fixed to the bottom of the bottom plate (1), a motor (322) fixed to the top of the horizontal portion of the L-shaped plate, and a driving bevel gear (323) fixed to the output end of the motor (322) and engaged with the driven bevel gear (313), and the driving bevel gear (323) is located in the mounting groove (13).

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