阅读说明：本技术 一种凸缘螺母的铆压工装及方法 (Riveting tool and method for flange nut ) 是由 解思状 严鉴铂 刘义 邱辉鹏 王子龙 张嘉豪 于 2021-09-18 设计创作，主要内容包括：本发明提供一种凸缘螺母的铆压工装及方法,解决现有凸缘螺母铆压质量不稳定、一致性差、适用范围小、成本高的问题。该工装包括支撑盘、回转盘、铆压杆、定位组件和连接组件；支撑盘下表面设有多个挂销；支撑盘外侧面设有回转手柄；回转盘设在支撑盘的安装腔内；回转盘沿径向设有第一缺口和第二缺口,回转盘上设有导套；定位组件包括导向杆、导向滑块、弹簧和定位块；导向杆下端设在回转盘上,导向滑块和弹簧依次套设在导向杆上,导向杆上端设有限位结构；定位块与导向滑块铰接,另一端伸入导套；铆压杆位于第二缺口上方,一端与回转盘上端面铰接,另一端设有铆压手柄,中部设有铆压结构；连接组件在铆压杆转动过程中,实现导向滑块上下移动。(The invention provides a riveting tool and a riveting method for a flange nut, and solves the problems of unstable riveting quality, poor consistency, small application range and high cost of the existing flange nut. The tool comprises a supporting disc, a rotary disc, a riveting rod, a positioning assembly and a connecting assembly; the lower surface of the supporting plate is provided with a plurality of hanging pins; a rotary handle is arranged on the outer side surface of the supporting plate; the rotary disc is arranged in the mounting cavity of the supporting disc; the rotary disk is provided with a first gap and a second gap along the radial direction, and the rotary disk is provided with a guide sleeve; the positioning assembly comprises a guide rod, a guide sliding block, a spring and a positioning block; the lower end of the guide rod is arranged on the rotary disc, the guide sliding block and the spring are sequentially sleeved on the guide rod, and the upper end of the guide rod is provided with a limiting structure; the positioning block is hinged with the guide sliding block, and the other end of the positioning block extends into the guide sleeve; the riveting rod is positioned above the second notch, one end of the riveting rod is hinged with the upper end face of the rotary disc, the other end of the riveting rod is provided with a riveting handle, and the middle part of the riveting rod is provided with a riveting structure; the connecting assembly realizes the up-and-down movement of the guide sliding block in the rotation process of the riveting rod.)

1. The utility model provides a riveting frock of flange nut which characterized in that: the riveting device comprises a supporting plate (9), a rotary plate (5), a riveting rod (8), a positioning assembly and a connecting assembly;

the middle part of the supporting disc (9) is downwards concave to form an installation cavity (91) for installing the rotary disc (5), and the bottom surface of the installation cavity (91) is provided with a central hole for the flange nut (06) to pass through; the lower surface of the supporting plate (9) is provided with a plurality of hanging pins (14) positioned on the periphery of the mounting cavity (91), the quantity of the hanging pins (14) is equal to that of the bolt holes (011) in the flange plate (01), and the positions of the hanging pins correspond to those of the bolt holes one by one;

the outer side surface of the supporting disc (9) is provided with at least 2 rotary handles (96) which are circumferentially arranged;

the rotary disc (5) is coaxially arranged in the installation cavity (91) of the supporting disc (9), and the rotary disc (5) can rotate on the supporting disc (9); the rotary disc (5) is of a cavity structure with an opening at the lower end, a first notch (51) and a second notch (52) which are not communicated are arranged on the side wall of the rotary disc (5) along the radial direction, the central line of the first notch (51) is collinear with the central line of the second notch (52), and a guide sleeve (53) positioned above the first notch (51) is arranged on the rotary disc (5);

the positioning assembly comprises a guide rod (1), a guide sliding block (3), a spring (2) and a positioning block (4); the lower end of the guide rod (1) is arranged on the rotary disc (5), the guide sliding block (3) and the spring (2) are sequentially sleeved on the guide rod (1) from bottom to top, the guide sliding block (3) can move on the guide rod (1), and the upper end of the guide rod (1) is provided with a limiting structure (11) for limiting the upper end face of the spring (2); the upper end of the positioning block (4) is hinged with the guide sliding block (3), the other end of the positioning block extends into the guide sleeve (53) and can move up and down relative to the guide sleeve (53), and the lower end of the positioning block extends out of the guide sleeve (53);

the riveting rod (8) is positioned right above the second notch (52), one end of the riveting rod (8) is hinged with the upper end face of the rotary disc (5), the other end of the riveting rod is provided with a riveting handle (82), and the middle part of the riveting rod is provided with a riveting structure (81) which can extend into the second notch (52);

the connecting assembly is arranged between the riveting rod (8) and the guide sliding block (3) and used for realizing the up-and-down movement of the guide sliding block (3) in the rotating process of the riveting rod (8).

2. The riveting frock of flange nut of claim 1, characterized in that: coupling assembling includes short connecting rod (6) and long connecting rod (7), the one end and riveting pole (8) one end of long connecting rod (7) are articulated, the other end of long connecting rod (7) is articulated with the one end of short connecting rod (6), the other end and the gyration dish (5) of short connecting rod (6) are articulated, and long strip hole has been seted up with short connecting rod (6) articulated position in long connecting rod (7), the one end and the direction slider (3) lower surface contact of short connecting rod (6), be used for supporting direction slider (3), and at short connecting rod (6) rotation in-process, realize that direction slider (3) reciprocate.

3. The riveting frock of flange nut of claim 2, characterized in that: the upper surface of the rotary disc (5) is provided with a limiting block (54) for limiting the rotation angle of the short connecting rod (6).

4. The riveting tool of the flange nut according to claim 3, characterized in that: the number of the rotary handles (96) is 2, and the rotary handles are uniformly distributed on the circumference.

5. The riveting frock of flange nut of claim 4, characterized in that: the guide rods (1) are arranged side by side, and the guide sliding blocks (3) are sleeved on the 2 guide rods (1).

6. The riveting frock of flange nut of claim 5, characterized in that: the hanging pin (14) comprises a first shaft section (141) and a second shaft section (142) which are coaxially and fixedly connected from top to bottom in sequence, and the diameter of the second shaft section (142) is larger than that of the first shaft section (141).

7. The riveting tool for the flange nut according to any one of claims 1 to 6, characterized in that: the supporting disc (9) comprises a first annular plate (92), a second annular plate (93), a conical and cylindrical connecting plate (94) and a lower cover (95);

the first annular plate (92) is coaxially arranged above the second annular plate (93), and the inner diameter of the first annular plate (92) is larger than the outer diameter of the second annular plate (93);

the large end of the conical connecting plate (94) is connected with the inner annular surface of the first annular plate (92), and the small end of the conical connecting plate is connected with the outer annular surface of the second annular plate (93);

the first annular plate (92), the second annular plate (93) and the conical cylindrical connecting plate (94) are integrated;

the outer ring end of the lower cover (95) is connected with the lower surface of the second ring plate (93), and a distance exists between the inner ring end of the lower cover and the lower surface of the second ring plate (93) to form an annular accommodating groove;

the mounting cavity (91) is formed among the conical connecting plate (94), the second annular plate (93) and the lower cover (95), and a central hole of the mounting cavity (91) is formed in the lower cover (95);

the outer circle surface of the lower end of the rotary disc (5) is provided with an annular rotating plate (55) arranged in the annular accommodating groove.

8. The riveting tool of the flange nut according to claim 7, characterized in that: the outer ring end of the lower cover (95) is connected with the lower surface of the second ring plate (93) through a rivet (13).

9. The riveting method of the flange nut is characterized by comprising the following steps:

1) a plurality of hanging pins (14) of a supporting plate (9) respectively penetrate through a plurality of bolt holes (011) of a flange plate (01), and meanwhile, the output shaft (02) and the end part of a flange nut (06) on the output shaft extend into a rotary plate (5); the supporting plate (9) is rotated by using a rotary handle (96), so that the edge of the hanging pin (14) is hung on the side surface of the flange plate (01);

2) judging whether the lower end of the positioning block (4) is positioned at a notch position on the output shaft (02), and if the lower end of the positioning block (4) is positioned at one notch position on the output shaft (02), executing the step 4); if the lower end of the positioning block (4) is not positioned at the position of the notch on the output shaft (02), executing the step 3);

3) the rotating disc (5) is rotated by utilizing the riveting handle (82) until the lower end of the positioning block (4) is embedded into one of the notches on the output shaft (02);

4) the riveting handle (82) is pulled downwards to enable the riveting rod (8) to rotate downwards, the edge of the flange nut (06) is riveted by a riveting structure (81) on the riveting rod (8), and riveting of the first position of the flange nut (06) is completed;

5) the flange plate (01) and the riveting tool are integrally rotated by utilizing a rotary handle (96), so that the riveting position of the second position of the flange nut (06) is moved to the operator side;

6) the riveting handle (82) is pulled upwards until the lower end of the positioning block (4) moves out of the end face of the output shaft (02), the rotary disc (5) is rotated by the riveting handle (82) until the lower end of the positioning block (4) is embedded into the other notch position on the output shaft (02), then the riveting handle (82) is pulled downwards to enable the riveting rod (8) to rotate downwards, the edge of the flange nut (06) is riveted by a riveting structure (81) on the riveting rod (8), and the second riveting of the flange nut (06) is completed;

7) and (3) pulling the riveting handle (82) upwards, rotating the supporting disk (9) by a certain angle by utilizing the rotary handle (96), dismounting the tool, and finishing the riveting process of the flange nut (06).

Technical Field

The invention relates to the technical field of mechanical structures, in particular to a riveting tool and a riveting method for a flange nut.

Background

The flange plate 01 is a power output part positioned at the tail end of an output shaft of the gearbox, is connected with the output shaft 02 through splines and outputs rotating speed and torque, and bolt holes 011 are formed in the flange plate 01 and are used for being connected with a transmission shaft in an automobile chassis. At present, two axial positioning modes are mainly adopted for an output flange 01 of a gearbox, as shown in fig. 1, the first mode is that a pressure plate 03 is adopted to axially compress the output flange, and meanwhile, the pressure plate is connected and fixed with an output shaft 02 in a double-bolt 04 connection mode, so that the output flange 01 is axially compressed by the pressure plate 03, and the looseness prevention of bolts is realized by connecting two bolts by using an iron wire 05; as shown in fig. 2, the second mode is to axially compress the output flange 01 by using the flange nut 06, at the same time, the flange nut 06 is in threaded connection with the output shaft 02, the flange nut 06 simultaneously realizes the functions of the pressure plate 03 and the bolt in the first mode, the anti-loose mode is realized by riveting punch or riveting, and the flange of the flange nut 06 is deformed by riveting punch or riveting, so that the deformed part is embedded into the notch on the outer side surface of the output shaft, thereby realizing the purpose of preventing the flange nut from rotating.

The gear box of the flange plate is fixed by adopting a flange nut mode, and the edge of the flange nut needs to be deformed so as to realize looseness prevention. At present, in a workshop assembly process, a manual riveting and punching and riveting tool is generally adopted.

The manual riveting and punching have two main modes:

the first method is that a worker manually chisels iron on the edge of the flange nut and then performs riveting and punching on the edge of the flange nut by using an iron bar to pound the iron chisel, and the method has the following defects and risks: the riveting device has the advantages of large physical consumption, easy accidental injury of operators by iron bars, excessive riveting impact, easy damage of flange nut edges (edge cracking and replacement), insufficient riveting impact, insufficient deformation, easy slipping of arc-shaped edge iron chisel, easy deviation of riveting impact points from an optimal set position, inconsistent riveting impact quality of flange nuts of the same batch of transmissions and the like.

The second way is that the worker uses a riveter to rivet and punch the flange nut edge, and the manual way has the following defects and risks: the riveting force and angle are difficult to control, the arc-shaped edge is easy to slip, the riveting point is easy to deviate from the optimal set position, the riveting quality of the flange nuts of the same batch of the gearbox is inconsistent, and the like.

For a riveting tool commonly used at present, as disclosed in chinese patent with publication No. CN106984762A and named as a nut riveting device, a hydraulic cylinder is used for providing power, and a person performs positioning before riveting through a handle and then manually operates the hydraulic cylinder to stretch and retract to perform riveting operation. Although the mode can achieve the aim of saving labor and realize nut riveting, the mode has the following obvious defects:

1. the alignment of the tool and the riveting position before riveting is determined by the vision of personnel, and if the positioning of the personnel is not accurate, the riveting quality cannot be ensured;

2. the riveting head is free from circumferential rotation prevention, and the riveting head is likely to slip off due to the arc-shaped edge in the riveting process because the position of the tool is manually stabilized by personnel and no auxiliary structure is provided;

3. the riveting depth is uncertain, the hydraulic cylinder is operated by personnel, no preset limit exists, and the consistency of the riveting result of the product cannot be ensured;

4. the riveting tool is complex in overall structure, needs a hydraulic power device and the like, occupies a large space, and is high in manufacturing and maintenance cost;

5. the hydraulic cylinder support is only suitable for fixed sites and can only be used longitudinally due to the limitation of the hydraulic cylinder support;

6. axial counter force in the riveting process is transmitted to the support through the oil hydraulic cylinder, the riveting effect can be influenced by longitudinal displacement of the oil hydraulic cylinder after stress, the whole longitudinal size is large, the control requirement on the longitudinal relative position is high, if the central axis of the oil cylinder is inconsistent with the axis of the central nut, the oil hydraulic cylinder deflects, the workpiece and the riveting mechanism are easily damaged in the riveting process, and personnel danger can be caused;

disclosure of Invention

The invention provides a riveting tool and a riveting method for a flange nut, and aims to solve the technical problems of unstable riveting quality, poor consistency, small application range and high comprehensive cost of the existing tool of the flange nut.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the utility model provides a riveting frock of flange nut which characterized in that: the riveting device comprises a supporting plate, a rotary plate, a riveting rod, a positioning assembly and a connecting assembly;

the middle part of the supporting disc is downwards concave to form an installation cavity for installing the rotary disc, and the bottom surface of the installation cavity is provided with a central hole for the flange nut to pass through; the lower surface of the supporting disc is provided with a plurality of hanging pins positioned on the periphery of the mounting cavity, the number of the hanging pins is equal to that of the bolt holes in the flange plate, and the hanging pins correspond to the bolt holes in the flange plate in position one to one;

the outer side surface of the supporting disc is provided with at least 2 rotary handles which are circumferentially arranged;

the rotary disc is coaxially arranged in the mounting cavity of the supporting disc and can rotate on the supporting disc; the rotary disc is of a cavity structure with an opening at the lower end, the side wall of the rotary disc is radially provided with a first notch and a second notch which are not communicated, the central line of the first notch is collinear with the central line of the second notch, and the rotary disc is provided with a guide sleeve positioned above the first notch; the flange nut penetrates through a central hole in the supporting plate and then extends into a cavity of the rotary plate;

the positioning assembly comprises a guide rod, a guide sliding block, a spring and a positioning block; the lower end of the guide rod is arranged on the rotary disc, the guide sliding block and the spring are sequentially sleeved on the guide rod from bottom to top, the guide sliding block can move on the guide rod, and the upper end of the guide rod is provided with a limiting structure for limiting the upper end face of the spring; the upper end of the positioning block is hinged with the guide sliding block, the other end of the positioning block extends into the guide sleeve and can move up and down relative to the guide sleeve, the lower end of the positioning block extends out of the guide sleeve and into the first notch, and the lower end of the positioning block can extend out of the guide sleeve and the first notch and is matched with the notch at the end part of the output shaft in the moving process of the guide sliding block;

the riveting rod is positioned right above the second notch, one end of the riveting rod is hinged with the upper end face of the rotary disc, the other end of the riveting rod extends out of the rotary disc and is provided with a riveting handle, and the middle part of the riveting rod is provided with a riveting structure which can extend into the second notch;

the connecting assembly is arranged between the riveting rod and the guide sliding block and used for realizing the up-and-down movement of the guide sliding block in the rotation process of the riveting rod.

Further, coupling assembling includes short connecting rod and long connecting rod, and the one end and the riveting pole one end of long connecting rod are articulated, and the other end and the one end of short connecting rod of long connecting rod are articulated, and the other end and the gyration dish of short connecting rod are articulated, and long strip hole has been seted up to long connecting rod and the articulated position of short connecting rod, and the one end and the direction slider lower surface contact of short connecting rod for support the direction slider, and at the short connecting rod rotation in-process, realize that the direction slider reciprocates.

Furthermore, the upper surface of the rotary disc is provided with a limiting block adjacent to the short connecting rod, the limiting block is used for limiting the rotating angle of the short connecting rod, and the consistency of the riveting depth of the riveting rod on the flange nut is ensured.

Furthermore, 2 of the rotary handles are evenly distributed on the circumference.

Further, the guide bar is for 2 that set up side by side, and the direction slider cover is established on 2 guide bars, all overlaps on every guide bar to be equipped with the spring and sets up limit structure.

Further, the hanging pin comprises a first shaft section and a second shaft section which are coaxially and fixedly connected from top to bottom in sequence, and the diameter of the second shaft section is larger than that of the first shaft section.

Further, the supporting disc comprises a first annular plate, a second annular plate, a conical cylindrical connecting plate and a lower cover;

the first annular plate is coaxially arranged above the second annular plate, and the inner diameter of the first annular plate is larger than the outer diameter of the second annular plate;

the large end of the conical connecting plate is connected with the inner annular surface of the first annular plate, and the small end of the conical connecting plate is connected with the outer annular surface of the second annular plate; the outer diameter of the upper end of the conical connecting plate is the same as the inner diameter of the first annular plate, and the inner diameter of the lower end of the conical connecting plate is the same as the outer diameter of the second annular plate;

the first annular plate, the second annular plate and the conical cylindrical connecting plate are integrated;

the outer ring end of the lower cover is connected with the lower surface of the second ring plate, and a distance exists between the inner ring end of the lower cover and the lower surface of the second ring plate to form an annular accommodating groove;

the mounting cavity is formed among the conical connecting plate, the second annular plate and the lower cover, and a central hole of the mounting cavity is formed in the lower cover;

the outer circle surface of the lower end of the rotary disc is provided with an annular rotating plate arranged in the annular accommodating groove.

Further, the outer ring end of the lower cover is connected with the lower surface of the second ring plate through rivets.

Meanwhile, the invention also provides a riveting method of the flange nut, which is characterized by comprising the following steps:

1) a plurality of hanging pins of the supporting disc respectively penetrate through a plurality of bolt holes of the flange plate, and meanwhile, the output shaft and the end part of a flange nut on the output shaft extend into the rotary disc; the supporting plate is rotated by using a rotary handle, so that the edge of the hanging pin is hung on the side surface of the flange plate;

2) judging whether the lower end of the positioning block is positioned at a notch position on the output shaft, and if the lower end of the positioning block is positioned at one notch position on the output shaft, executing the step 4); if the lower end of the positioning block is not positioned at the position of the notch on the output shaft, executing the step 3);

3) the rotating disc is rotated by utilizing the riveting handle until the lower end of the positioning block is embedded into one of the notches on the output shaft;

4) pulling the riveting handle downwards to enable the riveting rod to rotate downwards, riveting the edge of the flange nut by a riveting structure on the riveting rod, and completing riveting at the first position of the flange nut;

5) the flange plate and the riveting tool are integrally rotated by utilizing the rotary handle, so that the riveting position at the second position of the flange nut is moved to the operator side;

6) pulling the riveting handle upwards until the lower end of the positioning block moves out of the end face of the output shaft, rotating the rotary disc by using the riveting handle until the lower end of the positioning block is embedded into the other notch position on the output shaft, then pulling the riveting handle downwards to enable the riveting rod to rotate downwards, riveting the edge of the flange nut by using a riveting structure on the riveting rod, and completing the riveting at the second position of the flange nut;

7) upwards pulls the riveting handle, utilizes the gyration handle to rotate the supporting disk by a certain angle, unloads the frock, and the riveting process of flange nut is accomplished.

Compared with the prior art, the invention has the advantages that:

1. the riveting tool is provided with the positioning block, so that the tool positioning problem before riveting and the axial rotation problem (namely the tool slipping problem) in the riveting process can be effectively solved; the first notch and the second notch on the rotary disc can ensure the accuracy of the riveting position; the flange plate and the riveting tool are integrally rotated through the rotary handle, and the riveting position of the flange nut is moved to the side of an operator, so that the operation is convenient; the vertical dimension is little, does not have the problem of the central axis skew, is provided with a plurality of pegs simultaneously, and the counter-force is undertaken by the ring flange, even if single peg damages in the operation, does not influence normal use yet, even if discover the back only need in time maintain the change can, the operation requirement is low, and the security is very high.

2. The rotary disc is provided with the limiting block, the limiting block can ensure that the riveting depth of the flange nut edge of each product of the same type is consistent, the influence of personnel factors on the consistency of the products is avoided, the quality and consistency of the products are improved, the economic loss caused by manual misoperation is reduced, the safety of the working procedure is improved, the application range of the tool is expanded, and the comprehensive cost of the tool is reduced.

3. The riveting tool is simple in structure, low in cost, almost free of maintenance, small in occupied space, convenient to carry and suitable for being used in various occasions and under various directions, such as emergency maintenance and the like.

Drawings

FIG. 1 is a schematic structural view of a first prior art axial positioning of an output flange of a transmission;

FIG. 2 is a schematic structural view of a second prior art axial positioning of an output flange of a transmission;

FIG. 3 is a three-dimensional structure diagram of the riveting tool of the flange nut of the invention;

FIG. 4 is a front view of a riveting tool of the flange nut of the present invention;

FIG. 5 is a cross-sectional view of a riveting tool for a flange nut of the present invention;

FIG. 6 is a schematic view of a portion of a connecting assembly of the riveting tool for a flange nut according to the present invention;

FIG. 7 is a partial schematic view of a support plate in the riveting tool of the flange nut according to the present invention;

FIG. 8 is a schematic structural view of the flange nut on the end face of the output shaft before riveting;

FIG. 9 is a schematic structural view of the flange nut of FIG. 8 after being riveted by the riveting tool of the invention;

wherein the reference numbers are as follows:

01-flange plate, 011-bolt hole, 02-output shaft, 03-pressure plate, 04-double bolt, 05-iron wire and 06-flange nut;

1-a guide rod, 11-a limiting structure, 2-a spring, 3-a guide sliding block and 4-a positioning block;

5-a rotary disc, 51-a first notch, 52-a second notch, 53-a guide sleeve, 54-a limiting block and 55-an annular rotating plate;

6-short connecting rod, 7-long connecting rod;

8-riveting rod, 81-riveting structure, 82-riveting handle and 83-connecting block;

9-a support disc, 91-an installation cavity, 92-a first annular plate, 93-a second annular plate, 94-a conical cylindrical connecting plate, 95-a lower cover and 96-a rotary handle;

10-bolt, 12-nut, 13-rivet, 14-hanging pin, 141-first shaft section, 142-second shaft section;

a-riveting position.

Detailed Description

The invention is described in further detail below with reference to the figures and specific embodiments.

As shown in fig. 3 to 5, the riveting tool for the flange nut of the present invention includes a supporting plate 9, a rotating plate 5, a riveting rod 8, a positioning assembly and a connecting assembly.

The middle part of supporting disk 9 is sunken downwards, forms the installation cavity 91 that is used for installing gyration dish 5, and the centre bore that supplies flange nut 06 to pass is seted up to the bottom surface of installation cavity 91, and the lateral surface of supporting disk 9 is equipped with 2 at least gyration handles 96 of circumference arrangement, the rotation of supporting disk 9 of being convenient for. The supporting plate 9 of the present embodiment includes a first annular plate 92, a second annular plate 93, a conical cylindrical connecting plate 94 and a lower cover 95; the first ring plate 92 is coaxially arranged above the second ring plate 93, the inner diameter of the first ring plate 92 is larger than the outer diameter of the second ring plate 93, the diameter of the large end of the conical connecting plate 94 is the same as the inner diameter of the first ring plate 92, the diameter of the small end of the conical connecting plate 94 is the same as the outer diameter of the second ring plate 93, the large end of the conical connecting plate 94 is connected with the inner annular surface of the first ring plate 92, the small end of the conical connecting plate 94 is connected with the outer annular surface of the second ring plate 93, the first ring plate 92, the second ring plate 93 and the conical connecting plate 94 are integrated, and the rotary handle 96 is positioned on the outer side surface of the first ring plate 92; as shown in fig. 7, the outer ring end of the lower cover 95 is connected to the lower surface of the second ring plate 93 by a rivet 13, and a distance exists between the inner ring end of the lower cover and the lower surface of the second ring plate 93 to form an annular accommodating groove; the mounting cavity 91 is formed among the conical connecting plate 94, the second annular plate 93 and the lower cover 95, and correspondingly, a central hole of the mounting cavity 91 is formed in the lower cover 95.

The lower surface of first crown plate 92 is equipped with a plurality of hanging round pins 14 that are located installation cavity 91 periphery, the quantity of hanging round pins 14 equals with the quantity of bolt hole 011 on the ring flange 01, and the position one-to-one, every hanging round pin 14 includes first shaft segment 141 and the second shaft segment 142 that top-down coaxial linked firmly in proper order, and the diameter of second shaft segment 142 is greater than the diameter of first shaft segment 141, a plurality of hanging round pins 14 can pass a plurality of bolt hole 011 on the ring flange 01 respectively, rotate rotatory supporting disk 9 certain angle, make the upper surface edge of hanging round pin 14 second shaft segment 142 hang in the side of ring flange 01, utilize hanging round pin 14 edge to hang in the side of ring flange 01, realize that supporting disk 9 is located on ring flange 01.

The rotary disk 5 is coaxially arranged in the installation cavity 91 of the support disk 9, the outer circular surface of the lower end of the rotary disk 5 is provided with an annular rotating plate 55 arranged in the annular accommodating groove, and the rotary disk 5 can rotate relative to the support disk 9; the flange plate 01 is connected with the output shaft 02 through a spline, the output shaft 02 is in threaded connection with a flange nut 06, the flange nut 06 compresses the flange plate 01 tightly, and when the support plate 9 is positioned on the flange plate 01, the output shaft 02 and the flange nut 06 thereon need to extend into the rotary plate 5, so that the rotary plate 5 is designed into a cavity structure with an opening at the lower end, and the output shaft 02 and the flange nut 06 can penetrate through a central hole in the support plate 9 and then extend into a cavity of the rotary plate 5; the side wall of the rotary disk 5 is provided with a first notch 51 and a second notch 52 which are not communicated along the radial direction, the central line of the first notch 51 is collinear with the central line of the second notch 52, and the rotary disk 5 is provided with a guide sleeve 53 positioned above the first notch 51.

The positioning assembly comprises a guide rod 1, a guide sliding block 3, a spring 2 and a positioning block 4; the number of the guide rods 1 is 2, the lower ends of the 2 guide rods 1 are all arranged on a rotary disk 5, wherein the 1 guide rod 1 is vertically arranged at the center of the rotary disk 5, the guide sliding block 3 is sleeved on the 2 guide rods 1, the upper end of each guide rod 1 is sleeved with a spring 2, the upper end part of each guide rod 1 is provided with a limiting structure 11, the limiting structure 11 is an annular bulge arranged on the outer circular surface of each guide rod 1, the spring 2 on each guide rod 1 is limited by the upper surface of the guide sliding block 3 and the limiting structure 11, and the guide sliding block 3 can move on the guide rods 1; the upper end of the positioning block 4 is hinged with the guide slider 3, the other end of the positioning block extends into the guide sleeve 53 on the rotary disk 5, and in the up-and-down moving process of the guide slider 3, the positioning block 4 can move up and down relative to the guide sleeve 53, and the lower end of the positioning block 4 penetrates through the guide sleeve 53 and the first notch 51 and is arranged on the end face of the output shaft 02 or the notch position of the end face of the output shaft 02.

Riveting rod 8 is located directly over second breach 52, and riveting rod 8's one end is articulated with gyration dish 5 up end, and the other end stretches out gyration dish 5 and is equipped with riveting handle 82, and the middle part is equipped with the riveting structure 81 that can stretch into second breach 52, and riveting rod 8 rotates the in-process from top to bottom, can carry out the riveting to the flange nut 06 edge in stretching into gyration dish 5 cavity.

As shown in fig. 6, the connecting assembly is disposed between the riveting rod 8 and the guide slider 3, and is used for moving the guide slider 3 up and down in the rotation process of the riveting rod 8. Specifically, the connecting assembly comprises a short connecting rod 6 and a long connecting rod 7, one end of the long connecting rod 7 is hinged to one end of a riveting rod 8, the upper surface of the riveting rod 8 is fixedly connected with a connecting block 83 used for being hinged to the long connecting rod 7, the other end of the long connecting rod 7 is hinged to one end of the short connecting rod 6, the other end of the short connecting rod 6 is hinged to the rotary disc 5, a long hole is formed in the position where the long connecting rod 7 is hinged to the short connecting rod 6, one end of the short connecting rod 6 is in contact with the lower surface of the guide sliding block 3 and used for supporting the guide sliding block 3, and in the rotating process of the short connecting rod 6, the guide sliding block 3 is enabled to move up and down; the embodiment riveting rod 8 and the rotary disk 5, the long connecting rod 7 and the riveting rod 8, the short connecting rod 6 and the long connecting rod 7, and the short connecting rod 6 and the rotary disk 5 are hinged through bolt and nut assemblies, each bolt and nut assembly comprises a bolt 10 and a nut 12, the bolts 10 are connected with each other, and the nuts 12 are arranged at two end parts of the bolts 10.

The short connecting rod 6 can enable the positioning block 4 to move up and down along with the synchronous rotation of the riveting rod 8, when the lower end of the positioning block 4 penetrates through the guide sleeve 53 and the first notch 51 to be arranged at the notch position of the end face of the output shaft 02, the positioning block 4 can position the position of the rotary disc 5, so that the riveting rod 8 can be accurately riveted on the edge position of the flange nut 06, and meanwhile, the riveting rod 8 can be prevented from sideslipping in the working process, so that the riveting is more accurate.

The limiting block 54 adjacent to the short connecting rod 6 is arranged on the upper surface of the rotary disc 5, so that the movement range of the short connecting rod 6 is limited by the limiting block 54, the movement of the riveting rod 8 is limited, the riveting depth of the riveting rod 8 is limited to the preset depth and is consistent every time, and the consistency of the riveting quality of the flange nut 06 is effectively guaranteed. This embodiment turning handle 96 is 2 that the circumference was arranged, 2 breach collineations on 2 turning handle 96 and the output shaft 02, and turning handle 96 is convenient for rotatory ring flange 01, makes things convenient for two riveting position A of flange nut 06 to change to the operator side for the operation is comparatively swift.

The riveting quality consistency of this embodiment riveting frock through riveting pole 8 effective guarantee flange nut 06 has reduced the probability of defective products, personnel's safety risk, has promoted the convenience of process operation, has improved the quality and the uniformity of product, has reduced the economic loss that artifical maloperation leads to.

Before the riveting tool of this embodiment rivets the flange nut 06, as shown in fig. 8, the flange nut 06 is installed on the output shaft 02 in a threaded connection manner, and simultaneously compresses tightly the flange plate 01 axially, a is a riveting position a in fig. 8, and 4 bolt holes 011 are provided in the flange plate 01, and correspondingly, the hanging pins 14 on the supporting plate 9 (the first ring plate 92) are also 4, and the specific riveting process is:

1) 4 hanging pins 14 on a first ring plate 92 of a supporting plate 9 respectively penetrate through 4 bolt holes 011 on a flange plate 01, a second ring plate 93, a conical cylindrical connecting plate 94 and a lower cover 95 of the supporting plate 9 are positioned in an inner cavity of the flange plate 01, and meanwhile, the output shaft 02 and the end part of a flange nut 06 on the output shaft extend into a rotary plate 5; then, the rotary handle 96 is used for rotating the supporting plate 9 for a certain angle, so that the edge of the hanging pin 14 is hung on the side surface of the flange plate 01;

2) judging whether the lower end of the positioning block 4 is positioned at a notch position on the output shaft 02, and if the lower end of the positioning block 4 is positioned at one notch position on the output shaft 02, executing the step 4); if the lower end of the positioning block 4 is not positioned at the notch position on the output shaft 02 and the positioning block 4 abuts against the end face (non-notch position) of the output shaft 02, the spring 2 is in a compressed state at the moment, and the guide slide block 3 is positioned higher, then the step 3 is executed;

3) the rotary disc 5 is rotated by using the riveting handle 82 until the lower end of the positioning block 4 is embedded into one of the notches on the output shaft 02;

4) the lower end of the positioning block 4 is embedded into one of the notches on the output shaft 02, and at the moment, the riveting structure 81 on the riveting rod 8 is positioned at the other notch on the output shaft 02, namely, the riveting structure 81 on the riveting rod 8 reaches the corresponding position of the notch at the shaft end; and then the riveting handle 82 is pulled downwards to enable the riveting rod 8 to rotate downwards until the short connecting rod 6 abuts against the limiting block 54 on the rotary disk 5, and pulling is stopped. At this time, the edge of the flange nut 06 is pressed and deformed by the riveting structure 81 on the riveting rod 8, and the first riveting of the flange nut 06 is completed;

5) after the first position on the flange nut 06 is riveted, the flange plate 01 and the riveting tool are integrally rotated by utilizing the rotary handle 96, so that the riveting position A of the second position of the flange nut 06 is moved to the operator side;

6) the riveting handle 82 is pulled upwards until the lower end of the positioning block 4 exceeds the end face of the output shaft 02, then the rotary disc 5 is rotated by the riveting handle 82, and the riveting handle 82 can be gradually put down after being rotated by a small angle until the lower end of the positioning block 4 abuts against the end face of the output shaft 02;

7) utilize riveting handle 82 to make gyration dish 5 rotate, until the lower extreme embedding of locating piece 4 another breach position on the output shaft 02, at this moment, locating piece 4 supports on the breach at existing deformation flange nut 06 edge, and the decline displacement is less for the first time, and the circumferential direction location effect reduces for the first time, nevertheless because the existence of spring 2, better location effect still can be guaranteed to great pressure. Then, the riveting handle 82 is pulled downwards to enable the riveting rod 8 to rotate downwards until the short connecting rod 6 abuts against the limiting block 54 on the rotary disc 5, and pulling is stopped, at the moment, the edge of the flange nut 06 is pressed and deformed by the riveting structure 81 on the riveting rod 8, and riveting at the second position of the flange nut 06 is completed;

8) the riveting handle 82 is lifted, the supporting disc 9 is rotated by a certain angle by utilizing the rotary handle 96, the tool is dismounted, and the riveting process of the flange nut 06 is completed, as shown in figure 9.

The above description is only for the preferred embodiment of the present invention and does not limit the technical solution of the present invention, and any modifications made by those skilled in the art based on the main technical idea of the present invention belong to the technical scope of the present invention.