Turbine shell repair clamp

Abstract

A turbine shell repairing clamp comprises a bottom plate, and a first positioning and clamping device and a second positioning and clamping device are arranged at the top of the bottom plate. The first positioning and clamping device comprises a first supporting seat, a first clamping assembly, an electromagnet and a first positioning mandrel, the electromagnet is vertically arranged and detachably fixed to the top of the bottom plate, the first positioning mandrel is detachably fixed to the top of the electromagnet, and the first supporting seat is arranged on the left side of the first positioning mandrel and detachably fixed to the top of the bottom plate; the first clamping assembly is detachably fixed to the front side of the first supporting base. The second positioning and clamping device comprises a second supporting base, a second clamping assembly, a first rotating and pressing assembly, a second rotating and pressing assembly, a core shaft assembling base, an electromagnet and a second positioning core shaft, the core shaft assembling base is detachably fixed to the top of the bottom plate, and the electromagnet is detachably fixed to the front side of the core shaft assembling base; the second positioning mandrel is detachably and fixedly connected to the electromagnet. According to the utility model, the turbine shell can be conveniently clamped and positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a turbine shell repair fixture. Background Art

[0002] An automotive turbocharger utilizes exhaust gas from an internal combustion engine to drive an air compressor, increasing intake air volume by compressing the air, thereby boosting engine power and torque. The turbine housing of an automotive turbocharger is a complex structure. During the manufacturing process, the machined surfaces undergo multiple clamping operations, which can easily cause scratches and bruises on the intake flange and small round end faces. When these scratches occur, the turbine housing must be repaired.

[0003] When repairing the turbine housing, a clamp is needed to position and clamp it for easy repair. The existing conventional turbine housing clamp is generally used to clamp and position the intake flange air duct of the turbine housing. For example, the technical solution disclosed in patent publication number CN220548166U, titled "Clamp for Processing Automobile Turbocharger Housing", can clamp and position the turbine housing, but the intake flange surface is in a vertical state and is blocked. When the intake flange surface of the turbine housing is damaged by the above-mentioned bumps and scratches, it is not convenient to repair it. Utility Model Content

[0004] The purpose of the utility model is to provide a turbine shell repair fixture, which is convenient for clamping and positioning the turbine shell and for repairing the air intake flange surface or the small round end surface of the turbine shell.

[0005] The technical solution adopted by this utility model is:

[0006] A turbine casing repair fixture comprises a base plate. A first positioning clamping device and a second positioning clamping device are provided on the top of the base plate, which are respectively used to position and clamp two turbine casings to be repaired, thereby improving work efficiency.

[0007] The first positioning and clamping device includes a first support seat, a first clamping assembly, an electromagnet and a first positioning core shaft. The electromagnet is vertically arranged and detachably fixed to the top of the base plate. The first positioning core shaft is detachably fixed to the top of the electromagnet. The first positioning core shaft plays a positioning role. The first support seat is arranged on the left side of the first positioning core shaft and is detachably fixed to the top of the base plate. The first clamping assembly is detachably fixed to the front side of the first support seat.

[0008] The second positioning clamping device includes a second supporting seat, a second clamping assembly, a first rotating clamping assembly, a second rotating clamping assembly, a core shaft assembly seat, an electromagnet and a second positioning core shaft. The core shaft assembly seat is detachably fixed to the top of the base plate, and the electromagnet is horizontally arranged on the front side of the core shaft assembly seat. One end of the electromagnet is detachably fixedly connected to the core shaft assembly seat, and the other end of the electromagnet is detachably fixedly connected to the second positioning core shaft. The second supporting seat is arranged on the right side of the second positioning core shaft and is detachably fixed to the top of the base plate. The second clamping assembly is detachably fixed to the front side of the second supporting seat, and the first rotating clamping assembly and the second rotating clamping assembly are successively arranged on the left side of the second positioning core shaft and are detachably installed on the top of the base plate. The first rotating clamping assembly is used to clamp a part on the top of the intake flange surface of the turbine shell to be repaired, and the second rotating clamping assembly is used to clamp at the turning point of the turbine shell to be repaired. The two cooperate to prevent the turbine shell to be repaired from rotating, which facilitates repair operations.

[0009] The first clamping assembly and the second clamping assembly are preferably quick clamps.

[0010] Furthermore, the first positioning core shaft and the second positioning core shaft have the same structure; the upper part of the first positioning core shaft and the upper part of the second positioning core shaft are both provided with steps, which are in contact with the corresponding electromagnets, and the top of the electromagnets is provided with an upper mounting groove, and the lower part of the first positioning core shaft and the lower part of the second positioning core shaft are arranged in the corresponding upper mounting grooves, and the first positioning core shaft and the second positioning core shaft are respectively detachably fixedly connected to the corresponding electromagnets.

[0011] The upper mounting groove is arranged at the top of the iron block of the electromagnet, and a lower mounting groove is provided at the bottom of the iron block. The lower part of the first positioning core shaft and the lower part of the second positioning core shaft are arranged in the corresponding upper mounting groove and are connected by a locking bolt. The bolt extends into the lower mounting groove and is threadedly connected with a locking nut, and the locking nut is tightened against the top of the lower mounting groove.

[0012] Furthermore, a core shaft joint is detachably fixed to the end of the second positioning core shaft away from the electromagnet, and the core shaft joint fits into a corresponding position of the inner wall of the turbine shell to assist in positioning the second positioning core shaft.

[0013] Furthermore, the first rotating clamping assembly includes a first power seat, a first power source, a first fixed block, a first clamping arm, and a first articulated frame. The first power seat is detachably fixed to the top of the base plate. A vertical first power source mounting position is provided on the first power seat. The fixed end of the first power source is set at the first power source mounting position. The first fixed block is fixed to the upper position of the fixed end of the first power source. The first fixed block is detachably fixed to the top of the first power seat. The first articulated frame is fixed to the top of the first fixed block. The first clamping arm is hinged to the free end of the first power source and to the first articulated frame. The first power source can be extended and retracted to drive the first clamping arm to rotate along the first articulated frame for easy clamping.

[0014] Furthermore, the second rotating clamping assembly includes a second power seat, a second power source, a second fixed block, a second clamping arm, and a second articulated frame. The second power seat is detachable and fixed to the top of the base plate. The second power seat is provided with an inclined second power source mounting position. The fixed end of the second power source is set at the second power source mounting position. The second fixed block is fixed to the upper position of the fixed end of the second power source. The top of the second power seat is provided with an inclined surface. The second fixed block is detachable and fixed on the inclined surface of the second power seat. The second articulated frame is fixed to the top of the second fixed block. The second clamping arm is hinged to the free end of the second power source and to the second articulated frame. The second power source can be extended and retracted to drive the second clamping arm to rotate along the second articulated frame for easy clamping.

[0015] The first power source and the second power source are preferably hydraulic cylinders.

[0016] Furthermore, a plurality of spaced positioning grooves are provided on the side surface of the bottom plate; symmetrical mounting holes are provided on the bottom plate, and positioning bushings are fixed in the mounting holes.

[0017] The beneficial effects of the utility model are:

[0018] (1) A first positioning and clamping device and a second positioning and clamping device are provided on the top of the base plate, which are respectively used to position and clamp the two turbine shells to be repaired, thereby improving work efficiency. The first positioning and clamping device is mainly used to clamp and position the turbine shell whose small round end face needs to be repaired, so that the small round end face of the turbine shell is located at the top and is arranged horizontally, which is convenient for repair operations. The second positioning and clamping device is mainly used to clamp and position the turbine shell whose intake flange surface needs to be repaired, so that the intake flange surface of the turbine shell is located at the top and is arranged horizontally, which is convenient for repair operations.

[0019] (2) The first positioning core shaft and the second positioning core shaft are both used to enter the turbine shell from the large circular end surface of the turbine shell, fit with the corresponding parts of the turbine shell, and play a positioning role; the first positioning core shaft and the second positioning core shaft can be detachably fixed on the electromagnet. The electromagnet is energized and has magnetic force. Through magnetic adsorption, the turbine shell is more stably set on the first positioning core shaft or the second positioning core shaft.

[0020] (3) The first clamping assembly, the second clamping assembly, the first rotating pressing assembly, and the second rotating pressing assembly all play a clamping role, so that the turbine shell to be repaired is in a relatively stable position, which is convenient for the repair operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the installation of the utility model;

[0023] Figure 3 It is a partial cross-sectional view of the utility model;

[0024] Figure 4 It is a schematic diagram of the partial structure of the second positioning and clamping device.

[0025] In the figure: 1-base plate, 2-first positioning clamping device, 3-electromagnet, 4-first positioning mandrel, 5-first clamping assembly, 6-first support seat, 7-turbine shell, 8-small round end face, 9-joint, 10-first rotating pressing assembly, 11-first fixed block, 12-first power source, 13-first articulated frame, 14-first clamping arm, 15-mandrel assembly seat, 16-second positioning mandrel, 17-inlet flange surface, 18-second support seat, 19-second clamping assembly, 20-second Clamping arm, 21-second articulated frame, 22-second fixed block, 23-inclined surface, 24-second power seat, 25-second power source, 26-second rotation and clamping assembly, 27-first power seat, 28-positioning bushing, 29-positioning groove, 30-step, 31-upper mounting groove, 32-iron block, 33-locking nut, 34-locking bolt, 35-lower mounting groove, 36-core shaft joint 9, 37-second positioning and clamping device, 38-processing table, 39-positioning block, 40-positioning column. DETAILED DESCRIPTION

[0026] like Figure 1-Figure 4 As shown, a turbine casing repair fixture includes a base plate 1, and a first positioning clamping device 2 and a second positioning clamping device 37 are provided on the top of the base plate 1, which are respectively used to position and clamp two turbine casings 7 to be repaired to improve work efficiency.

[0027] The first positioning and clamping device 2 includes a first support seat 6, a first clamping assembly 5, an electromagnet 3 and a first positioning core shaft 4. The electromagnet 3 is vertically arranged and detachably fixed to the top of the base plate 1. The first positioning core shaft 4 is detachably fixed to the top of the electromagnet 3. The first positioning core shaft 4 plays a positioning role. The first support seat 6 is arranged on the left side of the first positioning core shaft 4 and is detachably fixed to the top of the base plate 1. The first clamping assembly 5 is detachably fixed to the front side of the first support seat 6. The first clamping assembly 5 plays a clamping role.

[0028] The second positioning clamping device 37 includes a second support seat 18, a second clamping assembly 19, a first rotating pressing assembly 10, a second rotating pressing assembly 26, a core shaft assembly seat 15, an electromagnet 3 and a second positioning core shaft 16. The core shaft assembly seat 15 is detachably fixed to the top of the base plate 1, and the electromagnet 3 is horizontally arranged on the front side of the core shaft assembly seat 15. One end of the electromagnet 3 is detachably fixedly connected to the core shaft assembly seat 15, and the other end of the electromagnet 3 is detachably fixedly connected to the second positioning core shaft 16. The second support seat 18 is arranged on the right side of the second positioning core shaft 16 and It can be detachably fixed on the top of the base plate 1, the second clamping assembly 19 can be detachably fixed on the front side of the second support seat 18, the first rotating clamping assembly 10 and the second rotating clamping assembly 26 are sequentially arranged on the left side of the second positioning core shaft 16 and can be detachably mounted on the top of the base plate 1, the first rotating clamping assembly 10 is used to press on a part of the top of the intake flange surface 17 of the turbine shell 7 to be repaired, and the second rotating clamping assembly 26 is used to press on the turning point of the turbine shell 7 to be repaired, and the two cooperate to prevent the turbine shell 7 to be repaired from rotating, which facilitates repair and other operations.

[0029] The first clamping component 5 and the second clamping component 19 are preferably quick clamps, also known as quick pliers, which can be purchased in major shopping malls. There are also relevant patents disclosing their specific structures, such as the patent publication number CN205572206U, and the patent name is the technical solution disclosed in the patent disclosure of clamps. This is the existing technology and will not be repeated here.

[0030] In order to facilitate the stable installation of the base plate 1 on the processing table 38, a number of spaced positioning grooves 29 are provided on the side of the base plate 1, and a positioning block 39 corresponding to the positioning groove 29 is provided on the processing table 38. The positioning block 39 is arranged in the positioning groove 29 to play a positioning role; symmetrical mounting holes are provided on the base plate 1, and a positioning bushing 28 is fixed in the mounting hole. A positioning column 40 cooperating with the positioning bushing 28 is provided on the processing table 38. The positioning column 40 is arranged in the positioning bushing 28 to play a positioning role.

[0031] In order to facilitate the connection of the first positioning core shaft 4 and the second positioning core shaft 16 with the corresponding electromagnet 3 respectively, the first positioning core shaft 4 and the second positioning core shaft 16 have the same structure; the upper part of the first positioning core shaft 4 and the upper part of the second positioning core shaft 16 are both provided with a step 30, and the step 30 is in contact with the corresponding electromagnet 3, and the top of the electromagnet 3 is provided with an upper mounting groove 31, and the lower part of the first positioning core shaft 4 and the lower part of the second positioning core shaft 16 are arranged in the corresponding upper mounting groove 31, and the first positioning core shaft 4 and the second positioning core shaft 16 are respectively detachably fixedly connected to the corresponding electromagnet 3.

[0032] The electromagnet 3 includes an iron block 32, on which a conductive winding is wound. When power is applied, the electromagnet 3 has magnetism. This is prior art and will not be described in detail here. The upper mounting groove 31 is arranged at the top of the iron block 32 of the electromagnet 3, and a lower mounting groove 35 is provided at the bottom of the iron block 32. The upper mounting groove 31 and the lower mounting groove 35 are not connected. The lower part of the first positioning core shaft 4 and the lower part of the second positioning core shaft 16 are arranged in the corresponding upper mounting groove 31 and are connected by a locking bolt 34. The bolt extends into the lower mounting groove 35 and is threadedly connected with a locking nut 33. The locking nut 33 is tightened against the top of the lower mounting groove 35.

[0033] For auxiliary positioning, a core shaft joint 936 is detachably fixed to the end of the second positioning core shaft 16 away from the electromagnet 3 , and the core shaft joint 936 fits into the corresponding part of the inner wall of the turbine shell 7 to assist in positioning the second positioning core shaft 16 .

[0034] In order to facilitate the clamping of the intake flange surface 17 of the turbine shell 7 to be repaired, the first rotating clamping assembly 10 includes a first power seat 27, a first power source 12, a first fixed block 11, a first clamping arm 14, and a first articulated frame 13. The first power seat 27 is detachably fixed to the top of the base plate 1. A vertical first power source 12 mounting position is provided on the first power seat 27. The fixed end of the first power source 12 is set at the first power source 12 mounting position. The first fixed block 11 is fixed to the upper position of the fixed end of the first power source 12. The first fixed block 11 is detachably fixed to the top of the first power seat 27. The first articulated frame 13 is fixed to the top of the first fixed block 11. The first clamping arm 14 is hinged to the free end of the first power source 12 and is hinged to the first articulated frame 13. The first power source 12 can be extended and retracted to drive the first clamping arm 14 to rotate along the first articulated frame 13 for easy clamping.

[0035] In order to facilitate the clamping of the turning point of the turbine casing 7 to be repaired, the second rotating clamping assembly 26 includes a second power seat 24, a second power source 25, a second fixing block 22, a second clamping arm 20, and a second articulated frame 21. The second power seat 24 is detachably fixed to the top of the base plate 1. The second power seat 24 is provided with an inclined second power source 25 mounting position. The fixed end of the second power source 25 is set at the second power source 25 mounting position. The second fixing block 22 is fixed to the upper position of the fixed end of the second power source 25. The top of the second power seat 24 is provided with an inclined surface 23. The second fixing block 22 is detachably fixed on the inclined surface 23 of the second power seat 24. The second articulated frame 21 is fixed to the top of the second fixing block 22. The second clamping arm 20 is hinged to the free end of the second power source 25 and is articulated to the second articulated frame 21. The second power source 25 can be telescopic to drive the second clamping arm 20 to rotate along the second articulated frame 21 for easy clamping.

[0036] The first power source 12 and the second power source 25 are preferably hydraulic cylinders, and hydraulic oil channels communicated with the hydraulic cylinders are arranged on the bottom plate 1, and connectors 9 are arranged at the hydraulic oil channels, so that the hydraulic cylinders are connected with a hydraulic control system of a machine tool through oil pipes to control the extension and retraction of the hydraulic cylinders.

[0037] The first power source 12 and the second power source 25 can also be conventional extension and retraction devices such as air cylinders and electric cylinders.

[0038] The first supporting seat 6, the second supporting seat 18, the mandrel assembling seat 15, the first power seat 27 and the second power seat 27 are preferably inverted T-shaped seats, which are detachably fixed on the bottom plate 1 through bolts.

[0039] The use method of the utility model is as follows:

[0040] First step: detachably mounting the bottom plate 1 on a machining table 38, and corresponding the positioning groove 29 on the bottom plate 1 with the positioning block 39 on the machining table 38, and corresponding the positioning bush 28 on the bottom plate 1 with the positioning column 40 on the machining table 38.

[0041] Second step: positioning and clamping the turbine shell 7 needing to repair the small circular end face 8 through the first positioning and clamping device 2, that is, vertically placing the turbine shell 7 on the first positioning mandrel 4, and the small circular end face 8 of the turbine shell 7 is located at the top, and the upper part of the first positioning mandrel 4 enters into the turbine shell 7 from the large circular end face of the turbine shell 7 and is attached to the corresponding part of the inner wall of the turbine shell 7, the air inlet flange of the turbine shell 7 is arranged between the first clamping assembly 5 and the first supporting seat 6, and the handle of the first clamping assembly 5 is operated to make the pressure head of the first clamping assembly 5 press on the back of the air inlet flange, and the positioning and clamping are completed.

[0042] Third step: positioning and clamping the turbine shell 7 needing to repair the air inlet flange face 17 through the second positioning and clamping device 37, that is, horizontally placing the turbine shell 7 on the second positioning mandrel 16, and the small circular end face 8 of the turbine shell 7 is located at the front side, and the upper part of the second positioning mandrel 16 enters into the turbine shell 7 from the large circular end face of the turbine shell 7 and is attached to the corresponding part of the inner wall of the turbine shell 7, the air inlet flange of the turbine shell 7 is horizontally arranged, the handle of the second clamping assembly 19 is operated to make the pressure head of the second clamping assembly 19 press on the small circular end face 8, and the positioning and clamping are completed.

[0043] Fourth step: start the first power source 12 and the second power source 25 in turn, the first power source 12 is elongated, drives the first clamping arm 14 to rotate along the first hinged frame 13, makes the first clamping arm 14 be tightly pressed on the top of the air inlet flange, the second power source 25 is elongated, drives the second clamping arm 20 to rotate along the second hinged frame 21, makes the second clamping arm 20 be tightly pressed on the turning part of the turbine shell 7, completes positioning and clamping.

[0044] Fifth step: the electromagnet 3 is energized, and the turbine shell 7 is stably arranged on the first positioning mandrel 4 and the second positioning mandrel 16 through magnetic adsorption.

[0045] Sixth step: the grinding head is used instead of the cutter to grind the scratch, pressure injury and other defects of the air inlet flange surface 17 and the small round end surface 8.

[0046] In the use process, the order of the above steps can be adjusted according to the needs.

[0047] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0048] The above examples are a description of the utility model, not a limitation of the utility model, and any simple transformation of the utility model belongs to the protection scope of the utility model.

Claims

1. A turbine housing repair fixture, comprising a base plate, characterized in that: A first positioning and clamping device and a second positioning and clamping device are provided on the top of the bottom plate; The first positioning and clamping device includes a first support seat, a first clamping assembly, an electromagnet and a first positioning core shaft, the electromagnet is vertically arranged and detachably fixed to the top of the base plate, the first positioning core shaft is detachably fixed to the top of the electromagnet, the first support seat is arranged on the left side of the first positioning core shaft and detachably fixed to the top of the base plate, and the first clamping assembly is detachably fixed to the front side of the first support seat; The second positioning and clamping device includes a second supporting seat, a second clamping assembly, a first rotating pressing assembly, a second rotating pressing assembly, a core shaft assembly seat, an electromagnet and a second positioning core shaft. The core shaft assembly seat is detachably fixed to the top of the base plate, and the electromagnet is horizontally arranged on the front side of the core shaft assembly seat. One end of the electromagnet is detachably fixedly connected to the core shaft assembly seat, and the other end of the electromagnet is detachably fixedly connected to the second positioning core shaft. The second supporting seat is arranged on the right side of the second positioning core shaft and is detachably fixed to the top of the base plate. The second clamping assembly is detachably fixed to the front side of the second supporting seat. The first rotating pressing assembly and the second rotating pressing assembly are successively arranged on the left side of the second positioning core shaft and are detachably installed on the top of the base plate.

2. The turbine housing repair fixture according to claim 1, characterized in that: The first positioning core shaft and the second positioning core shaft have the same structure; the upper part of the first positioning core shaft and the upper part of the second positioning core shaft are both provided with steps, and the steps are in contact with the corresponding electromagnets. The top of the electromagnet is provided with an upper mounting groove, and the lower part of the first positioning core shaft and the lower part of the second positioning core shaft are arranged in the corresponding upper mounting grooves. The first positioning core shaft and the second positioning core shaft are respectively detachably fixedly connected to the corresponding electromagnets.

3. The turbine housing repair fixture according to claim 2, characterized in that: A core shaft joint is detachably fixed on the end of the second positioning core shaft facing away from the electromagnet.

4. The turbine housing repair fixture according to claim 1, characterized in that: The first rotating clamping assembly includes a first power seat, a first power source, a first fixed block, a first clamping arm, and a first articulated frame. The first power seat is detachably fixed to the top of the base plate. A vertical first power source mounting position is provided on the first power seat. The fixed end of the first power source is set at the first power source mounting position. The first fixed block is fixed to the upper position of the fixed end of the first power source. The first fixed block is detachably fixed to the top of the first power seat. The first articulated frame is fixed to the top of the first fixed block. The first clamping arm is hinged to the free end of the first power source and is hinged to the first articulated frame.

5. The turbine housing repair fixture according to claim 1, characterized in that: The second rotating clamping assembly includes a second power seat, a second power source, a second fixed block, a second clamping arm, and a second articulated frame. The second power seat is detachably fixed to the top of the base plate. The second power seat is provided with an inclined second power source mounting position. The fixed end of the second power source is set at the second power source mounting position. The second fixed block is fixed to the upper position of the fixed end of the second power source. The top of the second power seat is provided with an inclined surface. The second fixed block is detachably fixed on the inclined surface of the second power seat. The second articulated frame is fixed to the top of the second fixed block. The second clamping arm is hinged to the free end of the second power source and is hinged to the second articulated frame.

6. The turbine housing repair fixture according to claim 1, characterized in that: The side surface of the bottom plate is provided with a plurality of spaced positioning grooves; the bottom plate is provided with symmetrical mounting holes, and positioning bushings are fixed in the mounting holes.

Images