Riveting tool for titanium alloy structural part of aero-engine

Abstract

The utility model discloses a riveting tool for an aero-engine titanium alloy structural part, which relates to the technical field of assembly equipment and comprises a rack, an adjusting mechanism is arranged in the rack, an upper die mechanism is arranged at the top end of the adjusting mechanism, a lower die mechanism is arranged at the top end in the rack, the upper die mechanism comprises a mounting block, and the mounting block is arranged on the rack. A lifting air cylinder is arranged at the bottom end of the mounting block, an upper punching die body is arranged at the lifting end of the lifting air cylinder, a rotating part is arranged in the upper punching die body, and the output end of a second motor is fixedly mounted on the rear side of the rotating part through a rotating shaft. The adjusting mechanism is arranged, the output end of the first motor drives the lead screw to rotate, the adjusting mechanism is matched with the guide rod to enable the height of the upper die mechanism in the rack to be adjusted, and therefore the riveting requirements of different sizes can be met, and secondly, the rotating piece is arranged to be matched with the four sets of punches, so that the punches are convenient to replace and adjust to adapt to rivets of different specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of assembly equipment, concretely relates to a riveting tool for titanium alloy structural part of aero-engine. BACKGROUND

[0002] In the research and development of aero-engine, one of the most important research and development requirements is structure weight reduction, ordinary metal cannot meet this design requirement, and new materials must be used, at this time, titanium alloy material emerges as the times require, the titanium alloy structural part made of titanium alloy material is the main component of aero-engine, and the connection mode is mainly riveting.

[0003] The existing riveting equipment has many defects, the structure is complex, maintenance is difficult after failure, and the pressing height difference of the upper die punch and the lower die punch cannot be adjusted, so that only one rivet size can be guaranteed, the application range is small, and in addition, for the riveting of some special positions, the riveting equipment and the titanium alloy structural part have structure interference, leading to the condition that riveting cannot be carried out. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a riveting tool for titanium alloy structural part of aero-engine, which solves the problems of the existing riveting equipment in the background art, such as many defects, complex structure, difficult maintenance after failure, and the pressing height difference of the upper die punch and the lower die punch cannot be adjusted, so that only one rivet size can be guaranteed, the application range is small, and in addition, for the riveting of some special positions, the riveting equipment and the titanium alloy structural part have structure interference, leading to the condition that riveting cannot be carried out.

[0005] To achieve the above purposes, the utility model adopts the technical scheme that:

[0006] A riveting tool for titanium alloy structural part of aero-engine, comprising a rack, an adjusting mechanism is arranged in the inside of the rack, an upper die mechanism is arranged at the top end of the adjusting mechanism, and a lower die mechanism is arranged at the inside top end of the rack.

[0007] The upper die mechanism comprises a mounting block, a lifting cylinder is arranged at the bottom end of the mounting block, an upper die body is arranged at the lifting end of the lifting cylinder, a rotating piece is arranged in the inside of the upper die body, the output end of a second motor is fixedly installed on the rear side of the rotating piece through a rotating shaft, a sliding groove is formed in the outer surfaces of the upper die body and the rotating piece, four groups of punches are arranged on the outer surface of the rotating piece, a telescopic cylinder is fixedly installed on the front side of the upper die body through a second mounting frame, a limiting pin is fixedly installed on the telescopic end of the telescopic cylinder through a mounting plate, and four groups of positioning rods are arranged at the bottom end of the upper die body.

[0008] Preferably, the limiting pin has two groups, and the two groups of limiting pins are inserted and installed in the sliding grooves on the outer surfaces of the upper punch body and the rotating member.

[0009] Preferably, the adjusting mechanism comprises a mounting frame, the mounting frame has two groups, one group of the mounting frame is internally rotatably installed with a lead screw, and the other group of the mounting frame is internally provided with a guide rod, one end of the lead screw is fixedly installed with an output end of a first motor, the outer surface of the lead screw is threadedly connected with one end of a first mounting bracket, the other end of the first mounting bracket is slidably installed on the outer surface of the guide rod, and the top end of the first mounting bracket is provided with the upper die mechanism.

[0010] Preferably, the lower die mechanism comprises a support plate, the top end of the support plate is provided with a lower punch body, the top end of the lower punch body is provided with a cylindrical groove, the top end of the lower punch body is provided with a movable groove at the position corresponding to the positioning rod, the interiors of four groups of the movable grooves are provided with springs, one end of each of the four groups of springs is provided with a movable block, and the four groups of movable blocks are movably installed in the interiors of the movable grooves.

[0011] Preferably, the four groups of punches are threadedly connected with the rotating member.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] Firstly, the adjusting mechanism is arranged, the lead screw is driven to rotate through the output end of the first motor, and the upper die mechanism is adjusted in height in the rack through cooperation of the guide rod, so that the riveting requirement of different sizes can be adapted, secondly, the rotating member is arranged to cooperate with the four groups of punches, the punches are convenient to replace and adjust, so that different specifications of rivets can be adapted, the rotating member is driven to rotate through the output end of the second motor, so that the punch can rotate around the rotating shaft, accurate riveting work is realized in complex or difficult-to-reach areas, the practicability and flexibility of the equipment are improved, and thirdly, the cylindrical groove and the movable groove are arranged on the lower punch body, and the springs and the movable blocks are arranged in the cylindrical groove and the movable groove, so that the impact force on the titanium alloy structural member in the riveting process is effectively reduced, the workpiece is protected from damage, and the riveting quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an appearance structure schematic view of the utility model;

[0015] Figure 2 It is a structure schematic view of one side of the utility model;

[0016] Figure 3 It is a structure schematic view of the utility model from a zero perspective;

[0017] Figure 4 It is an upper die mechanism schematic view of the utility model;

[0018] Figure 5 Figure 1 is a schematic view of a punch mechanism of the utility model;

[0019] Figure 6 Figure 2 is a schematic view of a lower die mechanism of the utility model;

[0020] Figure 7 Figure 3 is a schematic view of a punch mechanism of the utility model; Figure 6 Figure 4 is an enlarged view of A in figure 3.

[0021] Reference numerals in the figure are:

[0022] 1, frame;

[0023] 2, adjusting mechanism; 201, mounting frame; 202, screw rod; 203, guide rod; 204, first motor; 205, first mounting frame;

[0024] 3, upper die mechanism; 301, mounting block; 302, lifting cylinder; 303, upper punch body; 304, rotating part; 305, second motor; 306, punch; 307, sliding slot; 308, second mounting frame; 309, telescopic cylinder; 310, mounting plate; 311, limit pin; 312, positioning rod;

[0025] 4, lower die mechanism; 401, support plate; 402, lower punch body; 403, cylindrical groove; 404, movable groove; 405, spring; 406, movable block. DETAILED DESCRIPTION

[0026] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art.

[0027] Reference is made to Figures 1-7As shown in, an aero-engine titanium alloy structure riveting tool, including rack 1, the inside of rack 1 is provided with adjusting mechanism 2, the top of adjusting mechanism 2 is provided with upper die mechanism 3, the inside top of rack 1 is provided with lower die mechanism 4, upper die mechanism 3 includes mounting block 301, the bottom of mounting block 301 is provided with lifting cylinder 302, the lifting end of lifting cylinder 302 is provided with upper punch body 303, the inside of upper punch body 303 is provided with rotating piece 304, the rear side of rotating piece 304 is fixedly installed with the output end of second motor 305 through rotating shaft, the outer surfaces of upper punch body 303 and rotating piece 304 are all provided with sliding groove 307, the outer surface of rotating piece 304 is provided with four groups of punches 306, four groups of punches 306 are all threadedly connected with rotating piece 304, the front side of upper punch body 303 is fixedly installed with telescopic cylinder 309 through second mounting frame 308, the telescopic end of telescopic cylinder 309 is fixedly installed with limit pin 311 through mounting plate 310, limit pin 311 has two groups, and the two groups of limit pins 311 are all insertedly installed in the sliding grooves 307 formed in the outer surfaces of upper punch body 303 and rotating piece 304, the bottom of upper punch body 303 is provided with four groups of positioning rods 312.

[0028] In the scheme, the rotating piece 304 is driven to rotate in the inside of the upper punch body 303 through the output end of the second motor 305, so that the punch 306 can be replaced as needed, and the threaded connection of the punch 306 with the rotating piece 304 facilitates the replacement and maintenance of the punch 306, enhances the versatility and flexibility of the tool, and secondly, the limit pin 311 is moved in the sliding groove 307 through the telescopic movement of the telescopic cylinder 309, so that the punch 306 is transversely fixed, and the stability and consistency of the riveting quality are ensured.

[0029] Referring to Figures 2-3 As shown in, adjusting mechanism 2 includes mounting frame 201, the mounting frame 201 has two groups, one group of mounting frames 201 is rotatably installed with lead screw 202 in the inside, the other group of mounting frames 201 is provided with guide rod 203 in the inside, one end of lead screw 202 is fixedly installed with the output end of first motor 204, one end of lead screw 202 is threadedly connected with the first mounting frame 205 in the outer surface, and the other end of first mounting frame 205 is slidingly installed on the outer surface of guide rod 203, and the top end of first mounting frame 205 is provided with upper die mechanism 3.

[0030] In the scheme, the lead screw 202 is driven to rotate through the output end of the first motor 204, and since one end of the lead screw 202 is threadedly connected with the first mounting frame 205 in the outer surface, and the other end of the first mounting frame 205 is slidingly installed on the guide rod 203, so that the stable movement of the upper die mechanism 3 in the vertical direction is ensured, and the riveting efficiency is improved.

[0031] Referring to Figures 6-7As shown, the lower die mechanism 4 comprises a support plate 401, the top end of the support plate 401 is provided with a lower punch body 402, the top end of the lower punch body 402 is provided with a cylindrical groove 403, the top end of the lower punch body 402 is provided with a movable groove 404 corresponding to the position of the positioning rod 312, the inside of the four groups of movable grooves 404 are provided with springs 405, one end of the four groups of springs 405 are provided with movable blocks 406, and the four groups of movable blocks 406 are movably installed in the inside of the movable grooves 404.

[0032] In the scheme, the movable block 406 is subjected to the elastic force of the spring 405, can be adaptively fitted with the positioning rod 312, ensure the accurate alignment between the upper and lower dies, at the same time, the buffering effect of the spring 405 can also effectively reduce the influence of impact load on the tooling and workpiece, prolong the service life.

[0033] The working principle of the utility model: when working, firstly, the output end of the first motor 204 drives the screw rod 202 to rotate, the rotation of the screw rod 202 drives one end of the first mounting frame 205 to move, at the same time, the sliding of the other end of the first mounting frame 205 on the guide rod 203 ensures stability and accuracy, thereby driving the upper die mechanism 3 to move stably in the vertical direction to the required position, then, the lifting cylinder 302 starts, pushes the upper punch body 303 to approach the lower die mechanism 4, the rotating part 304 in the upper punch body 303 is driven to rotate by the output end of the second motor 305, so that the punch 306 threadedly connected in the rotating part 304 can be selected and positioned according to the specific riveting requirement, when the appropriate punch 306 is selected, the limiting pin 311 is pushed to move in the sliding groove 307 by the telescopic end of the telescopic cylinder, realizing the transverse fixation of the selected punch 306, ensuring the stability and accuracy of the punch 306 in the riveting process, when the upper and lower dies approach and finally contact, the movable block 406 in the lower die mechanism 4 is adaptively fitted with the positioning rod 312 of the upper die mechanism 3 under the action of the spring 405, ensuring the accurate alignment of the upper and lower dies, also effectively reducing the impact load in the riveting process through the buffering effect of the spring 405, protecting the tooling and workpiece, prolonging the service life, ensuring the riveting quality and efficiency.

[0034] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, the above examples and descriptions in the specification are only the principles of the utility model, various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A riveting fixture for titanium alloy structural components of an aero-engine, comprising a frame (1), characterized in that, The frame (1) is provided with an adjustment mechanism (2) inside, and an upper mold mechanism (3) is provided at the top of the adjustment mechanism (2). The frame (1) is provided with a lower mold mechanism (4) at the top of its interior. The upper die mechanism (3) includes a mounting block (301), a lifting cylinder (302) is provided at the bottom of the mounting block (301), an upper die body (303) is provided at the lifting end of the lifting cylinder (302), a rotating part (304) is provided inside the upper die body (303), the output end of a second motor (305) is fixedly installed on the rear side of the rotating part (304) through a rotating shaft, a sliding groove (307) is provided on the outer surface of both the upper die body and the rotating part (304), four sets of punches (306) are provided on the outer surface of the rotating part (304), a telescopic cylinder (309) is fixedly installed on the front side of the upper die body (303) through a second mounting bracket (308), a limit pin (311) is fixedly installed on the telescopic end of the telescopic cylinder (309) through a mounting plate (310), and four sets of positioning rods (312) are provided at the bottom of the upper die body (303).

2. The riveting fixture for titanium alloy structural components of an aero-engine according to claim 1, characterized in that: There are two sets of the limiting pins (311), and both sets of the limiting pins (311) are inserted into the grooves (307) opened on the outer surface of the upper punch body (303) and the rotating part (304).

3. The riveting fixture for titanium alloy structural components of an aero-engine according to claim 1, characterized in that: The adjustment mechanism (2) includes a mounting frame (201), which has two sets. One set of the mounting frame (201) has a lead screw (202) rotatably mounted inside, and the other set of the mounting frame (201) has a guide rod (203) inside. One end of the lead screw (202) is fixedly mounted with the output end of the first motor (204). The outer surface of the lead screw (202) is threadedly connected to one end of the first mounting bracket (205), and the other end of the first mounting bracket (205) is slidably mounted on the outer surface of the guide rod (203). The top of the first mounting bracket (205) is provided with an upper mold mechanism (3).

4. The riveting fixture for titanium alloy structural components of an aero-engine according to claim 1, characterized in that: The lower die mechanism (4) includes a support plate (401), a lower punch body (402) is provided at the top of the support plate (401), a cylindrical groove (403) is provided at the top of the lower punch body (402), and a movable groove (404) is provided at the top of the lower punch body (402) corresponding to the position of the positioning rod (312). A spring (405) is provided inside each of the four sets of movable grooves (404), and a movable block (406) is provided at one end of each of the four sets of springs (405). The four sets of movable blocks (406) are movably installed inside the movable grooves (404).

5. The riveting fixture for titanium alloy structural components of an aero-engine according to claim 1, characterized in that: All four sets of punches (306) are threadedly connected to the rotating part (304).

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