Tool clamp for turbocharger middle shell

Abstract

The utility model relates to a tool clamp for a turbocharger middle shell. The tool clamp comprises a bottom plate. A positioning hole is formed in the positioning seat, and the positioning hole is suitable for being matched with a shaft body of a workpiece; the at least one group of vertical pressing mechanism is suitable for vertically pressing the workpiece; and the center block is connected with a jacking mechanism, and the jacking mechanism drives the center block to move horizontally and is in jacking fit with the water channel hole of the workpiece. The clamping of the workpiece in the horizontal direction is changed from the previous clamping of two side surfaces of the end body of the water channel to the current jacking of the water channel hole, the clamping is carried out by taking the water channel hole as a positioning reference, and then the two assembly holes are machined, so that the profile tolerance of the two water channel holes and the two assembly holes can be improved, and the profile tolerance reaches 1.8.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture field, concretely relates to a tool fixture for turbocharger intermediate shell. BACKGROUND

[0002] As Figure 1 The turbocharger intermediate shell 1 shown in the drawing, including water channel end body 11, shell 12 and shaft body 13, water channel end body 11 includes front end face and two side faces, and the front end face is arc face, and two water channel holes 11-1 and two assembly holes 11-2 need to be machined on the front end face of water channel end body, two water channel holes 11-1 are sand core holes, namely blank holes, and are mainly formed by water channel sand core in the casting process of turbocharger intermediate shell, and two assembly holes 11-2 are machining holes, which need to be formed by drilling and tapping in the later period.

[0003] Now the customer requires that the contour degree of the two sand core holes and two assembly holes 11-2 on the front end face of water channel end body meet the requirement of 1.8 together, and the contour degree between the four holes can only reach 2.5 according to the previous tool fixture for machining assembly hole.

[0004] As Figure 2 The previous tool fixture shown in the drawing includes bottom plate 2, positioning seat 21, a pair of vertical pressing blocks 33 and a pair of horizontal clamping blocks 22, positioning seat 21 is matched with shaft body 13, ensures the levelness of workpiece, and the vertical direction is pressed vertically to the shell by vertical pressing block, and the horizontal direction is clamped by two horizontal clamping blocks 22 and the two side faces of water channel end body, and the previous tool fixture is used for positioning and clamping turbocharger intermediate shell, two assembly holes are machined after positioning and clamping, and the contour degree between the four holes cannot be improved to 1.8 by the previous clamping mode, and the main reason is that the two side faces of water channel sand core are matched with the mold shell, and the two water channel holes are matched with the water channel sand core, the mold shell determines the size of the two side faces of water channel end body, and the water channel sand core determines the size of the two water channel holes, the water channel sand core and the mold shell are not integrally formed, but are installed in the shell in the later period, there is installation precision deviation between different casting molds, the position size between the water channel hole and the side face of the turbocharger intermediate shell cast by different molds fluctuates, so that the contour degree between the four holes cannot be improved by the previous tool fixture. SUMMARY

[0005] The utility model wants to solve the technical problem of overcoming the shortage of prior art, providing a tool fixture for turbocharger intermediate shell, and solving the technical problem that the contour degree between the two water channel holes and the two assembly holes on the water channel end body cannot be improved by the previous tool fixture.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: a tooling fixture for a turbocharger intermediate shell is provided, including a base plate; a positioning seat, on which a positioning hole is provided, the positioning hole being adapted to cooperate with the shaft of the workpiece; at least one set of vertical clamping mechanisms, the vertical clamping mechanisms being adapted to vertically clamp the workpiece; a center block, the center block being connected to a clamping mechanism, the clamping mechanism driving the center block to move horizontally and clamping the water channel hole of the workpiece.

[0007] Furthermore, the clamping mechanism includes a slide block that is movable back and forth on a base plate, a center block that is disposed at the front end of the slide block, and a threaded sleeve that is disposed at the rear end of the slide block; a base that is fixedly disposed on the base plate, an adjusting screw that passes through the base and connects to the threaded sleeve, and rotating the adjusting screw is suitable for driving the slide block to move back and forth; and a support mechanism disposed between the slide block and the base, which is suitable for providing support force to the slide block in the clamping position.

[0008] Furthermore, the support mechanism includes a support cylinder disposed on the base; a support block disposed on the slide; and a guide mechanism disposed between the support block and the base plate to guide the support block to move back and forth. The support block moves together with the base to the clamping position, and the support cylinder abuts against the support block to provide a predetermined support force.

[0009] Furthermore, the guiding mechanism includes a guide rod, the front end of which passes through the guide block and the rear end of which is fixedly connected to the support block; the guide block is fixedly set on the base plate.

[0010] Furthermore, the front end of the threaded sleeve is connected to the slide block via a connecting pin, and the threaded sleeve is adapted to swing horizontally on the slide block.

[0011] Furthermore, the vertical pressing mechanism cylinder is fixedly mounted on the base plate; the support rod is rotatably connected at its lower end to the cylinder and rotatably connected at its upper end to the pressing block; the pressing block is connected at its rear end to the push rod of the cylinder, at its middle part to the support rod, and at its front end is suitable for pressing the workpiece.

[0012] The beneficial effects of this utility model are: the tooling fixture for the intermediate shell of the turbocharger of this utility model clamps the workpiece in the horizontal direction by changing the clamping of the two sides of the water channel end body in the past to the clamping of the water channel hole. The water channel hole is used as the positioning reference for clamping, and then the two assembly holes are machined. This can improve the contour of the two water channel holes and the two assembly holes, so that the contour reaches 1.8. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the intermediate housing of a turbocharger; Figure 2 This is a schematic diagram of a traditional tooling fixture; Figure 3 This is a schematic diagram of the tooling fixture for the intermediate housing of the turbocharger of this utility model; Figure 4 This is a schematic diagram of the tightening mechanism; Figure 5 This is a schematic diagram of the clamping mechanism and positioning seat; where 1, turbocharger intermediate shell, 11, water channel end body, 12, shell, 13, shaft, 11-1, water channel hole, 11-2, assembly hole; 2, base plate, 21, positioning seat, 22, clamping block; 3, vertical clamping mechanism, 31, oil cylinder, 32, support rod, 33, pressure block; 4, clamping mechanism, 41, slide, 42, base, 43, center block; 51, adjusting screw, 52, threaded sleeve, 53, connecting pin; 6, support mechanism, 61, support block, 62, support cylinder, 63, guide rod, 64, guide block. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] This application provides a tooling fixture for a turbocharger intermediate housing, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0017] To address the technical problem that existing tooling fixtures cannot improve the contour between the two water channel holes and the two assembly holes 11-2 on the water channel end body, one embodiment of this application provides a tooling fixture for a turbocharger intermediate housing. This is described in detail below.

[0018] like Figures 3 to 4 As shown, a tooling fixture for a turbocharger intermediate housing includes a base plate 2; a positioning seat 21 with a positioning hole adapted to engage with the shaft of a workpiece; at least one set of vertical clamping mechanisms 3 adapted to vertically clamp the workpiece; and a center block 43 connected to a clamping mechanism 4, which drives the center block 43 to move horizontally and clamp the water channel hole of the workpiece.

[0019] The front end of the tip block 43 has a flat conical structure.

[0020] Specifically, as an optional implementation method in this embodiment, such as Figure 4 As shown, the clamping mechanism 4 includes a slide 41, which is movable back and forth on the base plate 2. The center block 43 is disposed at the front end of the slide 41, and a threaded sleeve 52 is disposed at the rear end of the slide 41. A base 42 is fixedly disposed on the base plate 2. An adjusting screw 51 passes through the base 42 and is connected to the threaded sleeve 52. Rotating the adjusting screw 51 is suitable for driving the slide 41 to move back and forth. A support mechanism 6 is disposed between the slide 41 and the base 42. The support mechanism 6 is suitable for providing support force to the slide 41 in the clamping position.

[0021] In this embodiment, a guide rail assembly is provided between the slide block 41 and the base plate 2, and the guide rail assembly guides the slide block 41 to move back and forth linearly on the base plate 2.

[0022] Specifically, as an optional implementation method in this embodiment, such as Figure 4 and Figure 5 As shown, the front end of the threaded sleeve 52 is connected to the slide block 41 via a connecting pin 53, and the threaded sleeve 52 is adapted to swing horizontally on the slide block 41.

[0023] The threaded sleeve 52 can swing horizontally, which facilitates the connection between the threaded sleeve 52 and the adjusting screw 51 at the rear.

[0024] In this embodiment, the adjusting screw 51 includes a knob and a screw. A rod hole is provided on the base 42 for the screw to pass through. The screw has a radial clearance in the rod hole, which is used to accommodate the horizontal swing of the threaded sleeve 52.

[0025] Specifically, as an optional implementation method in this embodiment, such as Figure 4 and Figure 5 As shown, the support mechanism 6 includes a support cylinder 62, which is mounted on the base 42; a support block 61, which is mounted on the slide 41; and a guide mechanism, which is positioned between the support block 61 and the base plate 2 to guide the support block 61 to move back and forth. The support block 61 moves together with the base 42 to the clamping position, and the support cylinder 62 abuts against the support block 61 to provide a predetermined support force.

[0026] In this embodiment, the support block 61 and the slide 41 are an integral structure, and the support block 61 is located on one side of the slide 41.

[0027] In this embodiment, a cylinder mounting hole is provided on the base 42, and the support cylinder 62 is disposed in the cylinder mounting hole.

[0028] The extension length and supporting force of the support cylinder 62 during operation can be set in advance. The support cylinder 62 provides supporting force to the slide block 41 through the support block 61. When the turbocharger intermediate shell 1 is being processed, the top block 43 has sufficient supporting force to hold the workpiece.

[0029] Specifically, as an optional implementation method in this embodiment, such as Figure 4 and Figure 5 As shown, the guiding mechanism includes a guide rod 63, the front end of which passes through the guide block 64, and the rear end of which is fixedly connected to the support block 61; the guide block 64 is fixedly set on the base plate 2.

[0030] The guide mechanism ensures that the support block 61 can move linearly in the front and back directions, thus ensuring that the slide block 41 can move stably back and forth.

[0031] Specifically, as an optional implementation method in this embodiment, such as Figure 4 and Figure 5 As shown, the vertical pressing mechanism 3 has a hydraulic cylinder 31, which is fixedly installed on the base plate 2; a support rod 32, the lower end of which is rotatably connected to the hydraulic cylinder 31, and the upper end of which is rotatably connected to the pressing block 33; the pressing block 33, the rear end of which is connected to the push rod of the hydraulic cylinder 31, the middle part of which is connected to the support rod 32, and the front end of which is suitable for pressing the workpiece.

[0032] The process of installing the turbocharger intermediate shell 1 using this utility model tooling fixture is as follows: First, the turbocharger intermediate shell 1 is placed on the positioning seat 21. Then, the sliding seat 41 is moved forward by adjusting the screw 51, so that the top block 43 is inserted into the water channel hole 11-1. The top block 43 defines the horizontal installation reference of the turbocharger intermediate shell 1. The positioning seat 21 limits the installation reference of the turbocharger intermediate shell 1 above the height. Then, the vertical pressing mechanism 3 drives the two pressing blocks 33 to vertically press the turbocharger intermediate shell 1. Finally, the support cylinder 62 works, and the front end of the support block 61 abuts against the support block 61 to support the sliding seat 41. After all the pressing is done, machining can be performed, which can greatly improve the contour between the two assembly holes 11-2 and the two water channel holes 11-1.

[0033] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0034] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0037] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0038] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tooling fixture for a turbocharger center housing, characterized by, It includes the bottom plate (2); the positioning seat (21) is set on the positioning hole, and the positioning hole is suitable for cooperating with the shaft body of the workpiece; at least one set of vertical pressing mechanism (3) is suitable for vertical pressing of the workpiece; the tailstock block (43) is connected with the top pressing mechanism (4), the top pressing mechanism (4) drives the tailstock block (43) to move horizontally, and the water channel hole of the workpiece is pressed tightly.

2. The tooling fixture for a turbocharger center housing according to claim 1, wherein The top pressing mechanism (4) includes the sliding seat (41), which is movably arranged on the bottom plate (2); the tailstock block (43) is arranged at the front end of the sliding seat (41); the threaded sleeve (52) is arranged at the rear end of the sliding seat (41); the base (42) is fixedly arranged on the bottom plate (2); the adjusting screw (51) is arranged through the base (42); the adjusting screw (51) is connected with the threaded sleeve (52) after passing through the base (42); the adjusting screw (51) is suitable for driving the sliding seat (41) to move forward and backward by rotating; the supporting mechanism (6) is arranged between the sliding seat (41) and the base (42), and the supporting mechanism (6) is suitable for providing supporting force to the sliding seat (41) in the clamping position.

3. The tooling fixture for a turbocharger center housing of claim 2 wherein, The supporting mechanism (6) includes the supporting cylinder (62) arranged on the base (42); the supporting block (61) arranged on the sliding seat (41); the guide mechanism arranged between the supporting block (61) and the bottom plate (2) to guide the supporting block (61) to move forward and backward; the supporting cylinder (62) provides a predetermined supporting force to the supporting block (61) moved to the clamping position.

4. The tooling fixture for a turbocharger center housing of claim 3 wherein, The guide mechanism includes the guide rod (63), the front end of which passes through the guide block (64), and the rear end of which is fixedly connected with the supporting block (61); the guide block (64) is fixedly arranged on the bottom plate (2).

5. The tooling fixture for a turbocharger center housing of claim 2 wherein, The front end of the threaded sleeve (52) is connected with the sliding seat (41) through the connecting pin (53), and the threaded sleeve (52) is suitable for swinging horizontally on the sliding seat (41).

6. The tooling fixture for a turbocharger center housing of claim 1 wherein, The vertical pressing mechanism (3) includes the oil cylinder (31) fixedly arranged on the bottom plate (2); the supporting rod (32) rotatably connected with the oil cylinder at the lower end and rotatably connected with the pressing block (33) at the upper end; the pressing block (33) is connected with the push rod of the oil cylinder (31) at the rear end, connected with the supporting rod (32) at the middle, and suitable for pressing the workpiece at the front end.

Images