CN216501959U

CN216501959U - Rolling riveting clamp for turbine shell

Info

Publication number: CN216501959U
Application number: CN202122657191.7U
Authority: CN
Inventors: 杨之宝; 张长明; 凌锡春
Original assignee: Chongqing Hongyu Precision Industry Group Co ltd
Current assignee: Chongqing Hongyu Precision Industry Group Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-05-13
Anticipated expiration: 2031-11-02

Abstract

The utility model provides a turbine shell roll riveting fixture. The roll riveting clamp comprises a supporting mechanism and a pressing mechanism. The supporting mechanism comprises a base, an inner ring positioning seat and a centering shaft. The turbine is buckled on the supporting mechanism. The turbine includes a turbine inner ring, turbine blades, and a turbine shell. The blade support platform supports a turbine blade. The guide section extends out of the central hole of the turbine shell. The pressing mechanism comprises a mandrel, an adapter plate and a turbine shell pressing plate which are sequentially arranged from bottom to bottom. The rolling riveting fixture is additionally provided with a taper structure on the centering shaft, and after a part is placed on the fixture, the part can be automatically guided by means of dead weight. Ensure that the part is put suitable position, the part rolls rivets the effect and can promote, rejection rate greatly reduced.

Description

Rolling riveting clamp for turbine shell

Technical Field

The utility model relates to the technical field of machining and manufacturing of hydraulic torque converters, in particular to a rolling riveting clamp for a turbine shell.

Background

With the acceleration of the localization process of the automatic transmission of the automobile, the torque converter of the automobile applied to AT and CVT is increasingly emphasized, but the manufacturing process of the torque converter is complex, the manufacturing difficulty is high, the early investment is large, the profit is low, the experience of processing the product by using general equipment is insufficient, and the technical difficulty is high. With the global market competition aggravating, the development and the application of the automobile hydraulic torque converter in China are gradually reduced, and the development and the manufacture of the hydraulic torque converter by using the existing general equipment under the existing conditions play an extremely important role in promoting the development of the automobile industry and the hydraulic transmission industry in China.

The hydraulic torque converter assembly mainly comprises a rotatable turbine assembly, a pump wheel assembly and a fixed guide wheel assembly. The pump wheel assembly and the cover assembly are connected into a whole and fixed on the crankshaft of the engine by bolts. The turbine assembly is connected with other parts of the transmission system through a driven shaft. The guide wheel assembly is fixed on the fixed sleeve. The quality problem of the existing turbine roll riveting is always concerned, the problem of ensuring the qualification of the gap is always solved, and the automatic roll riveting is needed in the times.

The positional accuracy of turbine placement is critical to turbine roll riveting. If the position of the part is not correct, the part can be crushed after the pressure plate of the turbine shell is pressed down, so that the part is scrapped. However, in the prior art, the skill requirements of workers are high for the turbine rivet rolling procedure. An operator can only judge whether the part is put in place through visual inspection, but the problem that the part is pressed and damaged due to improper placement of the part cannot be completely solved due to visual inspection difference, certain rejection rate still exists, the working efficiency is reduced, and the method is not suitable for batch production.

Therefore, the development of the rolling riveting clamp for the turbine shell is of great significance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rolling riveting clamp for a turbine shell, which aims to solve the problems in the prior art.

The technical scheme adopted for achieving the purpose of the utility model is that the rolling riveting clamp for the turbine shell comprises a supporting mechanism and a pressing mechanism.

The supporting mechanism comprises a base, an inner ring positioning seat and a centering shaft. The whole centering shaft is a stepped rotary body. The centering shaft comprises a guide section, a turbine shell end face laying section, a blade support platform placing section and a positioning section which are coaxially arranged from top to bottom. The guide section comprises a circular table section and a cylindrical section which are coaxially arranged. The large-diameter end of the circular table section is connected with the upper surface of the cylindrical section. The turbine shell end face placing section, the blade supporting table placing section and the positioning section are all cylinders. The diameters of the cylindrical section, the turbine shell end face placing section, the blade support platform placing section and the positioning section are d1, d2, d3 and d 4. Wherein d3 is more than d2 is more than d1, and d3 is more than d 4.

And a positioning hole is formed in the surface of the base. The inner ring positioning seat is arranged on the upper surface of the base. The inner ring positioning seat is a revolving body with an opening at the upper end and a hollow inner part. The inner cavity of the inner ring positioning seat comprises a large-diameter cylindrical section and a small-diameter cylindrical section. The positioning hole and the inner cavity of the inner ring positioning seat are combined together to form a centering shaft accommodating cavity. The fixed shaft is inserted in the fixed shaft accommodating cavity. The blade support platform placing section is arranged on the large-diameter cylindrical section. The positioning section penetrates out of the small-diameter cylindrical section and then is inserted into the positioning hole. And the blade supporting platform is arranged on the blade supporting platform placing section. The base, the inner ring positioning seat, the centering shaft and the blade supporting platform are fixedly connected through pins.

The turbine is buckled on the supporting mechanism. The turbine includes a turbine inner ring, turbine blades, and a turbine shell. The blade support platform supports a turbine blade. The guide section extends out of the central hole of the turbine shell.

The pressing mechanism comprises a mandrel, an adapter plate and a turbine shell pressing plate which are sequentially arranged from bottom to bottom. The lower surface of the turbine shell pressing plate is provided with a guide groove. The guide groove is in a circular truncated cone shape. The large-diameter end of the guide groove faces downwards. The size of the guide groove is matched with that of the guide section.

Further, the materials of the centering shaft and the turbine shell pressing plate are metal materials.

Further, the height of the circular platform section of the guide section is 8 mm. The cone angle of the circular platform section of the guide section is 20 degrees. The diameter of the large-diameter end of the circular platform section of the guide section is 73.75 mm. The height of the cylindrical section of the guide section is 2.6 mm. The groove depth of the guide groove is 12 mm. The guide groove has a cone angle of 20 deg.. The diameter of the large-diameter end of the guide groove is 76.9 mm.

Further, the main shaft of the turbine shell roll riveting device is connected with the mandrel.

The technical effects of the utility model are undoubted:

A. the taper structure is added on the centering shaft, and when the part is placed on the centering shaft, the part can be automatically guided by the dead weight. The parts are ensured to be placed at proper positions, the rolling riveting effect of the parts is improved, and the rejection rate is greatly reduced;

B. an environment beneficial to roll riveting is created, so that the parts are positioned more quickly, the whole beat is shortened, the working efficiency is improved, and the labor intensity and the working load of workers are reduced;

C. the feasibility is improved for the automated production, the practicality is high, and the popularization and the application are convenient.

Drawings

FIG. 1 is a schematic structural view of a turbine casing roll riveting fixture;

FIG. 2 is a schematic view of a turbine configuration;

FIG. 3 is a schematic view of the structure of the centering shaft;

FIG. 4 is a top view of the centering shaft;

FIG. 5 is a schematic view of a turbine casing platen configuration;

FIG. 6 is a top view of a turbine casing platen.

In the figure: the device comprises a supporting mechanism 1, a base 101, an inner ring positioning seat 102, a centering shaft 103, a guide section 1031, a turbine shell end face placing section 1032, a blade supporting platform placing section 1033, a positioning section 1034, a turbine 2, a turbine inner ring 201, turbine blades 202, a turbine shell 203, a pressing mechanism 3, a turbine shell pressing plate 301, an adapter plate 302 and a mandrel 303.

Detailed Description

The present invention will be further described with reference to the following examples, but it should be understood that the scope of the subject matter described above is not limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the utility model and the scope of the utility model is covered by the present invention according to the common technical knowledge and the conventional means in the field.

Example 1:

referring to fig. 1, the present embodiment provides a roll riveting fixture for a turbine casing, which includes a support mechanism 1 and a pressing mechanism 3.

Referring to fig. 3 and 4, the supporting mechanism 1 includes a base 101, an inner ring positioning seat 102, and a centering shaft 103. The centering shaft 103 is a stepped rotary body as a whole. The centering shaft 103 includes, from top to bottom, a coaxially disposed guide section 1031, a turbine casing end face rest section 1032, a blade support table placing section 1033, and a positioning section 1034. The guiding section 1031 includes a circular table section and a cylindrical section which are coaxially arranged. The large-diameter end of the circular table section is connected with the upper surface of the cylindrical section. The turbine casing end face rest section 1032, the blade support table placing section 1033, and the positioning section 1034 are all cylinders. The diameters of the cylindrical section, turbine casing end face rest section 1032, blade support table placement section 1033, and positioning section 1034 are d1, d2, d3, and d 4. Wherein d3 is more than d2 is more than d1, and d3 is more than d 4.

The panel of the base 101 is provided with a positioning hole. The inner ring positioning seat 102 is arranged on the upper surface of the base 101. The inner ring positioning seat 102 is a revolving body with an open upper end and a hollow inner end. The inner cavity of the inner ring positioning seat 102 includes a large-diameter cylindrical section and a small-diameter cylindrical section. The positioning hole and the inner cavity of the inner ring positioning seat 102 are combined together to form a centering shaft accommodating cavity. The centering shaft 103 is inserted into the centering shaft accommodating cavity. The blade support table placing section 1033 is arranged in the large-diameter cylindrical section. The positioning section 1034 penetrates out of the small-diameter cylindrical section and then is inserted into the positioning hole. A blade support table is arranged on the blade support table placing section 1033. The base 101, the inner ring positioning seat 102, the centering shaft 103 and the blade support platform are fixedly connected through pins.

The pressing mechanism 3 comprises a mandrel 303, an adapter plate 302 and a turbine shell pressing plate 301 which are arranged in sequence from bottom to bottom. The main shaft of the turbine housing roll riveting apparatus is connected to the spindle 303. Referring to fig. 5 and 6, the lower surface of the turbine casing platen 301 is provided with a guide groove 3011. The guide slot 3011 is in a circular truncated cone shape. The large diameter end of the guide slot 3011 faces downward. The guide slot 3011 is sized to match the size of the guide section 1031.

Referring to fig. 2, the turbine 2 includes a turbine inner ring 201, turbine blades 202, and a turbine outer shell 203. In operation, the turbine 2 is first fastened to the support structure 1. The guide section 1031 protrudes through the central hole of the turbine housing 203. The turbine 2 can be automatically guided by self weight, and the centering effect is good. At this time, only the turbine blade 202 is in contact with the blade support base, the end surface of the turbine housing 203 is in contact with the centering shaft 103, and the turbine inner ring 201 is not in contact with the inner ring positioning base 102. The blade support platform supports the turbine blades 202. And starting the turbine shell roll riveting equipment, and driving the pressing mechanism 3 to feed downwards by the main shaft. When the turbine shell pressure plate 301 starts to contact the back of the turbine shell 203, the turbine 2 is pushed to move downwards along with the blade support platform and the centering shaft 103 until the turbine inner ring 201 contacts the inner ring positioning seat 102. The pre-inverting cutter gradually contacts the blade claw at the turbine shell and completes pre-inverting of the blade claw. And finishing the rolling riveting of the blade claws to ensure that the blade claws are completely attached to the turbine shell 203.

Example 2:

the main structure of this embodiment is the same as that of embodiment 1, wherein the materials of the centering shaft 103 and the turbine casing pressing plate 301 are metal materials.

Example 3:

the main structure of this embodiment is the same as that of embodiment 1, wherein the height of the circular truncated cone section of the guide section 1031 is 8 mm. The cone angle of the truncated cone section of the guide section 1031 is 20 °. The diameter of the large diameter end of the circular truncated cone section of the guide section 1031 is 73.75 mm. The height of the cylindrical section of the guide section 1031 is 2.6 mm. The depth of the guide groove 3011 is 12 mm. The guide slot 3011 has a taper angle of 20 °. The diameter of the large-diameter end of the guide slot 3011 is 76.9 mm.

Claims

1. The utility model provides a turbine shell's roll and rivet anchor clamps which characterized in that: comprises a supporting mechanism (1) and a pressing mechanism (3);

the supporting mechanism (1) comprises a base (101), an inner ring positioning seat (102) and a centering shaft (103); the whole centering shaft (103) is a stepped rotary body; the centering shaft (103) comprises a coaxially arranged guide section (1031), a turbine shell end face rest section (1032), a blade support table placing section (1033) and a positioning section (1034) from top to bottom; the guide section (1031) comprises a circular table section and a cylindrical section which are coaxially arranged; the large-diameter end of the circular table section is connected with the upper surface of the cylindrical section; the turbine shell end face placing section (1032), the blade support table placing section (1033) and the positioning section (1034) are all cylinders; the diameters of the cylindrical section, the turbine casing end face rest section (1032), the blade support table placing section (1033) and the positioning section (1034) are d1, d2, d3 and d 4; wherein d3 is more than d2 is more than d1, and d3 is more than d 4;

a positioning hole is formed in the surface of the base (101); the inner ring positioning seat (102) is arranged on the upper surface of the base (101); the inner ring positioning seat (102) is a revolving body with an opening at the upper end and a hollow inner end; the inner cavity of the inner ring positioning seat (102) comprises a large-diameter cylindrical section and a small-diameter cylindrical section; the positioning hole and the inner cavity of the inner ring positioning seat (102) are combined together to form a centering shaft accommodating cavity; the centering shaft (103) is inserted in the centering shaft accommodating cavity; the blade support table placing section (1033) is arranged in the large-diameter cylindrical section; the positioning section (1034) penetrates out of the small-diameter cylindrical section and then is inserted into the positioning hole; a blade support table is arranged on the blade support table placing section (1033); the base (101), the inner ring positioning seat (102), the centering shaft (103) and the blade supporting platform are fixedly connected through pins;

the turbine (2) is buckled on the supporting mechanism (1); the turbine (2) comprises a turbine inner ring (201), turbine blades (202) and a turbine outer shell (203); the blade support platform supports a turbine blade (202); the guide section (1031) protrudes out of a central hole of the turbine housing (203);

the pressing mechanism (3) comprises a mandrel (303), an adapter plate (302) and a turbine shell pressing plate (301) which are sequentially arranged from bottom to bottom; the lower surface of the turbine shell pressing plate (301) is provided with a guide groove (3011); the guide groove (3011) is in a shape of a circular truncated cone; the large-diameter end of the guide groove (3011) faces downwards; the guide slot (3011) has a size that matches the size of the guide section (1031).

2. The roll riveting jig for a turbine casing according to claim 1, characterized in that: the centering shaft (103) and the turbine shell pressing plate (301) are made of metal materials.

3. The roll riveting jig for a turbine casing according to claim 1, characterized in that: the height of the circular truncated cone section of the guide section (1031) is 8 mm; the cone angle of the circular truncated cone section of the guide section (1031) is 20 degrees; the diameter of the large-diameter end of the circular truncated cone section of the guide section (1031) is 73.75 mm; the height of the cylindrical section of the guide section (1031) is 2.6 mm; the depth of the guide groove (3011) is 12 mm; the guide slot (3011) has a taper angle of 20 °; the diameter of the large-diameter end of the guide groove (3011) is 76.9 mm.

4. The roll riveting fixture for the turbine casing according to claim 1, characterized in that: the main shaft of the turbine shell roll riveting device is connected with a mandrel (303).