CN220636887U

CN220636887U - Cam riveting clamp

Info

Publication number: CN220636887U
Application number: CN202322363636.XU
Authority: CN
Inventors: 黄佳明; 谈俊涛; 严冬; 何盛澤; 秦栋明; 臧铭辉
Original assignee: Jiangsu Luokai Mechanical & Electrical Co ltd
Current assignee: Jiangsu Luokai Mechanical & Electrical Co ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-03-22
Anticipated expiration: 2033-08-31

Abstract

The utility model belongs to the technical field of clamps, and in particular relates to a cam riveting clamp, which comprises: the device comprises a base, a riveting table, a core pulling mechanism, a floating mechanism and a pressing mechanism; the riveting platform is connected with the base through a floating mechanism; the core pulling mechanism is connected with the core rod; when the riveting platform is in an upward floating position and the core pulling mechanism drives the core rod to extend upwards, the pressing mechanism presses the cam on the riveting platform, so that the riveting platform is driven to move to a submerged position, and the core rod is inserted into the mounting hole of the cam; the pressing mechanism releases the cam, the core pulling mechanism drives the core rod to draw out the cam mounting hole downwards, and the riveting table and the cam move to an upper floating position under the action of the floating mechanism. The cam can be stably clamped in the riveting process, so that the quality of the cam is greatly improved, and the average service life of the cam is prolonged from 1 ten thousand times to 5 thousand times.

Description

Cam riveting clamp

Technical Field

The utility model belongs to the technical field of clamps, and particularly relates to a cam riveting clamp.

Background

The cam 1 shown in fig. 1 comprises a front metal plate 11, a back metal plate 12 and a plurality of connecting columns 13 in the middle, wherein the end parts of the connecting columns 13 are inserted into the two metal plates, then press riveting is carried out through press riveting, and finally the connecting columns 13 are connected with the metal plates.

In the past, the cam processing mainly relies on the manual work to operate, and manual riveting lacks reliable positioning and locking device, easily produces bad piece, and the quality of riveting technology performance depends on operating personnel to a certain extent, leads to the cam quality of processing very unstable, and the defective rate is higher.

In summary, in the riveting assembly process of the existing cam, a reliable clamp is lacked to stably clamp, so that the processed cam has higher defective rate.

Disclosure of Invention

The utility model aims to provide a cam riveting clamp which solves the technical problem that an existing cam cannot be stably clamped in a riveting assembly process.

The application provides a cam riveting clamp, include:

the device comprises a base, a riveting table, a core pulling mechanism, a floating mechanism and a pressing mechanism;

the riveting platform is connected with the base through a floating mechanism so as to enable the base on the riveting platform to float up and down;

the core pulling mechanism is connected with the core rod and is suitable for driving the core rod to move up and down, and the section of the core rod is matched with the section of the cam mounting hole;

when the riveting platform is in an upward floating position and the core pulling mechanism drives the core rod to extend upwards, the pressing mechanism presses the cam on the riveting platform, so that the riveting platform is driven to move to a submerged position, and the core rod is inserted into the mounting hole of the cam;

the pressing mechanism releases the cam, the core pulling mechanism drives the core rod to draw out the cam mounting hole downwards, and the riveting table and the cam move to an upper floating position under the action of the floating mechanism.

Further, the compressing mechanism comprises

The compression cylinder is fixedly arranged on the bottom plate;

and one end of the pressing plate is connected with the pressing cylinder, and the other end of the pressing plate is suitable for pressing the cam.

Further, the compressing mechanism also comprises

The lower end of the limiting rod is fixedly arranged, the upper end of the limiting rod is provided with a guide groove, and the pressing plate penetrates through the guide groove and is suitable for moving up and down in the guide groove.

Further, the floating mechanism comprises

The upper ends of the guide posts are fixedly connected with the lower ends of the riveting tables, and the lower ends of the guide posts are inserted into the guide holes of the base so as to guide the riveting tables to move up and down on the base;

the spring cavity is formed in the base, the reset spring is arranged in the spring cavity, the lower end of the reset spring is abutted to the base, and the upper end of the reset spring is abutted to the riveting seat so as to drive the riveting seat to reset upwards.

Furthermore, a limiting baffle ring is formed at the lower end of the guide post, a sliding distance of the riveting seat is reserved between the limiting baffle ring and the riveting table, and the limiting baffle ring is suitable for being abutted against the riveting table so as to limit the guide post riveting table to be separated from the upper end of the base.

Further, the core pulling mechanism comprises

The core pulling cylinder is fixedly arranged in the base;

the lower end of the core rod is connected with the core fixing cylinder, and the upper end of the core rod passes through the riveting table.

Further, the base comprises a U-shaped base body and a cylindrical base body;

the U-shaped seat body is reversely buckled on the bottom plate, and the cylindrical seat body is arranged at the upper end of the U-shaped seat body;

the riveting platform is in sliding fit with the cylindrical seat body;

the core pulling mechanism is arranged in the U-shaped seat body.

Further, when the riveting platform is in the floating position, the core pulling mechanism drives the upper end of the core rod to extend out of the riveting platform, and the extending part of the core rod is used as a positioning part for cam installation.

The beneficial effects of the utility model are as follows:

according to the cam riveting clamp disclosed by the utility model, the cam can be stably clamped in the riveting process, so that the quality of the cam is greatly improved, and the average service life of the cam is prolonged from 1 ten thousand times to 1 ten thousand 5 thousand times.

In the process of compacting the cam, the core rod is inserted into the cam, so that deformation and displacement of workpieces in the riveting process are reduced, and the consistency of the workpieces is improved.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and drawings.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a cam;

FIG. 2 is a schematic view of a cam clip of a preferred embodiment of the present utility model;

FIG. 3 is a schematic view of a hold-down mechanism according to a preferred embodiment of the present utility model;

FIG. 4 is a schematic view of a core back mechanism according to a preferred embodiment of the present utility model;

FIG. 5 is a schematic view of a riveting station according to a preferred embodiment of the utility model;

FIG. 6 is a schematic view of a floating mechanism according to a preferred embodiment of the present utility model;

FIG. 7 is a diagram showing the fit between the guide post and the base on the crimping station in accordance with a preferred embodiment of the present utility model;

FIG. 8 is a schematic view of a base of a preferred embodiment of the present utility model;

FIGS. 9 and 10 are schematic views of a clamp according to another preferred embodiment of the present utility model;

in the figure:

1. cam, 11, front metal plate, 12, back metal plate, 13 and connecting column;

2. the base, 21, U-shaped seat, 22, cylindrical seat;

3. the core pulling mechanism comprises a core pulling mechanism 31, a core pulling cylinder 32 and a core rod;

4. a floating mechanism 41, guide posts 42, a limiting baffle ring 43 and a return spring;

5. the compression mechanism, 51, the compression cylinder, 52, the pressing plate, 53 and the limiting rod;

6. riveting platform, 61, disc, 62, cylinder.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present application provides a cam riveting jig, which is described in detail below. It should be noted that the following description order of the embodiments is not intended to limit the preferred order of the embodiments of the present application. In the following embodiments, the descriptions of the embodiments are focused on, and for the part that is not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.

In order to solve the technical problem that the cam 1 in fig. 1 cannot be stably clamped in the riveting assembly process in the prior art, an embodiment of the present application provides a cam riveting fixture. This cam riveting clamp includes:

the riveting machine comprises a base 2, a riveting table 6, a core pulling mechanism 3, a floating mechanism 4 and a pressing mechanism 5;

the riveting platform 6 is connected with the base 2 through the floating mechanism 4 so as to enable the base 2 on the riveting platform 6 to float up and down;

the core pulling mechanism 3 is connected with the core rod 32 and is suitable for driving the core rod 32 to move up and down, and the section of the core rod 32 is matched with the section of the mounting hole of the cam 1;

when the riveting platform 6 is in the floating position and the core pulling mechanism 3 drives the core rod 32 to extend upwards, the pressing mechanism 5 presses the cam 1 on the riveting platform 6, so that the riveting platform 6 is driven to move to the submerged position, and the core rod 32 is inserted into the mounting hole of the cam 1;

the pressing mechanism 5 releases the cam 1, the core pulling mechanism 3 drives the core rod 32 to draw out the installation hole of the cam 1 downwards, and the riveting table 6 and the cam 1 move to an upper floating position under the action of the floating mechanism 4. During the compression process of the cam 1, the core rod 32 is inserted into the cam 1, so that deformation and displacement of workpieces during the riveting process are reduced, and the consistency of the workpieces is improved. As will be described in detail below.

Referring to fig. 1 to 8, fig. 2 is a schematic structural view of an embodiment of a cam riveting clamp of the present application. The embodiments of the present application are described by way of example with respect to cam riveting clamps, which are provided for discussion purposes only and are not intended to be limiting.

In one embodiment, as shown in FIG. 3, the hold-down mechanism 5 comprises

A pressing cylinder 51 fixedly provided on the bottom plate;

a pressing plate 52, one end of which is connected to the pressing cylinder 51, and the other end of which is adapted to press the cam 1.

Specifically, as shown in fig. 3, the end of the pressing plate 52 is clamped in the push rod of the pressing cylinder 51, and meanwhile, a fixing pin passes through the pressing plate 52 and the cylinder push rod, so that the pressing plate 52 is fixedly connected with the pressing cylinder 51, and the pressing plate 52 can be driven to move up and down by the pressing cylinder 51. The other end of the pressing plate 52 is used for pressing the cam 1, and a pressing head is arranged at the end, so that the pressing plate 52 can stably press the cam 1.

Specifically, to control the downward movement position of the pressing plate 52, as shown in fig. 3, the pressing mechanism 5 further includes

The lower end of the limiting rod 53 is fixedly arranged, the upper end of the limiting rod is provided with a guide groove, and the pressing plate 52 penetrates through the guide groove and is suitable for moving up and down in the guide groove.

In this embodiment, the pressing plate 52 is mainly controlled to be pressed down by the limit lever 53.

Specifically, as an alternative in the embodiment, as shown in fig. 5 to 7, the floating mechanism 4 includes

The upper ends of the pair of guide posts 41 are fixedly connected with the lower ends of the riveting press tables 6, and the lower ends of the pair of guide posts are inserted into guide holes formed in the base 2 so as to guide the riveting press tables 6 to move up and down on the base 2;

the base 2 is provided with a spring cavity, the spring cavity is arranged in the spring cavity, the lower end of the spring 43 is abutted against the base 2, and the upper end of the spring 43 is abutted against the riveting seat so as to drive the riveting seat to reset upwards.

Specifically, as shown in fig. 3, a locking screw passes through the guide post 41 between the guide post 41 and the riveting table 6 to connect with the riveting table 6, so as to fix the guide post 41 at the lower end of the riveting table 6.

Specifically, as shown in fig. 2, the riveting press table 6 has a T-shaped structure, and includes a disc 61 and a cylinder 62, the cylinder 62 is fixed at the lower end of the disc 61, a sliding fit is formed between the cylinder 62 and the base 2, and a plane is formed on the side of the cylinder 62, and the plane is used for limiting the rotation of the cylinder 62 on the base 2, so that the whole riveting press table 6 can only perform lifting movement on the base 2.

The centers of the disc 61 and the cylinder 62 are respectively provided with a rod hole for penetrating the core rod 32, and the core rod 32 is in sliding fit with the riveting table 6.

Optionally, as a further optimization of the floating mechanism 4, as shown in fig. 5 to 7, a limiting stop ring 42 is formed at the lower end of the guide post 41, a sliding space of the riveting base is reserved between the limiting stop ring 42 and the riveting table 6, and the limiting stop ring 42 is suitable for abutting against the riveting table 6 to limit the riveting table 6 of the guide post 41 from being separated from the upper end of the base 2.

Specifically, the sliding distance is the distance that the riveting table 6 floats up and down.

The floating mechanism 4 works in principle: when the pressing plate 52 presses the cam 1, the riveting platform 6 is simultaneously subjected to downward pressure to compress the return spring 43, and the riveting platform 6 is in a submerged position when contacting the base 2; when the pressing plate 52 is lifted, the reset spring 43 drives the riveting platform 6 to lift, and when the limiting baffle ring 42 contacts the base 2, the riveting platform 6 reaches the floating position.

As a preferred embodiment of the present embodiment, as shown in fig. 4, the core pulling mechanism 3 includes a core pulling cylinder 31 fixedly disposed in the base 2;

the lower end of the core rod 32 is connected with the core fixing cylinder, and the upper end of the core rod passes through the riveting table 6.

Specifically, the core-pulling cylinder 31 is a flat cylinder, and is fixedly arranged in the base 2.

The lower end of the core rod 32 is fixedly connected with a push rod of the core pulling cylinder 31, and the upper end of the core rod 32 is inserted into a mounting hole of the cam 1.

The cross section of the core rod 32 is adapted to the mounting hole of the cam 1, and in this embodiment, the mounting hole has a C-shaped structure, and the cross section of the core rod 32 also has a C-shaped structure.

As shown in fig. 8, there is provided a preferred embodiment in this embodiment, the base 2 includes a U-shaped base 21 and a cylindrical base 22;

the U-shaped seat body 21 is reversely buckled on the bottom plate, and the cylindrical seat body 22 is arranged at the upper end of the U-shaped seat body 21;

the riveting table 6 is in sliding fit with the cylindrical seat body 22;

the core pulling mechanism 3 is installed in the U-shaped seat body 21.

Specifically, the U-shaped seat body 21 is formed by splicing three metal plates, and the cylindrical seat body 22 is formed by splicing cylindrical 62-shaped metals up and down and is connected with the lower U-shaped seat body 21 to form an integral structure.

As a preferred embodiment in this embodiment, as shown in fig. 2, when the riveting die table 6 is in the floating position, the core pulling mechanism 3 drives the upper end of the mandrel 32 to protrude from the riveting die table 6, and the protruding portion of the mandrel 32 is used as a positioning portion for mounting the cam 1.

In this embodiment, the upper end of the core rod 32 serves as a positioning rod for the cam 1 at the time of installation, so that an operator can conveniently place the cam 1 on the crimping station 6.

The working process of the cam riveting clamp is as follows:

cam 1 part placement: firstly, placing a back metal plate 12 on a riveting seat, then vertically placing a plurality of connecting columns 13 on the back metal plate 12, finally placing a front metal plate 11 on each connecting column 13, inserting the lower end of the connecting column 13 into the back metal plate 12, and inserting the upper end of the connecting column into the front metal plate 11.

The core pulling mechanism 3 controls the core rod 32 to be lifted, so that the upper end of the core rod 32 is inserted into the back metal plate 12 before riveting, and the back metal plate 12 is positioned to limit the horizontal movement of the core rod 32;

and (3) compacting: the pressing cylinder 51 drives the pressing plate 52 to move downwards to press the cam 1, the riveting table 6 is forced to move downwards to be in contact with the base 2, so that the pressing plate 52 thoroughly presses the front metal plate 11 of the cam 1, at the moment, the upper end of the whole core rod 32 is inserted into the mounting hole of the front metal plate 11, and then the riveting press performs riveting operation on the upper end of each connecting column 13, so that the upper end of each connecting column 13 and the front metal plate 11 form riveting;

core pulling: after the riveting is finished, the pressing cylinder 51 is lifted, the pressing plate 52 leaves the front metal plate 11 of the cam 1, the front metal plate 11 is pressed with the core rod 32 in the horizontal direction to a certain extent, the front metal plate 11 is clamped with the core rod 32, even if the cam 1 is not pressed by the pressing plate 52, the riveting table 6 is difficult to automatically float upwards, at the moment, the core pulling cylinder 31 drives the core rod 32 to move downwards, the core rod 32 is pulled out of the front metal plate 11 and the back metal plate 12, then the whole riveting table 6 and the cam 1 can float upwards under the action of the reset spring 43, an operator can take down the cam 1 after the riveting, the riveting of the front side of the cam 1 is finished, the reverse side is also riveted with the back metal plate 12 and the connecting columns 13 according to the synchronization step, and the two ends of each connecting column 13 are simultaneously connected with the front metal plate 11 and the back metal plate 12.

The core pulling mechanism 3 has the functions that: the core pulling mechanism 3 inserts the core rod 32 into the front panel and the back panel 12 of the cam 1, so that the connecting column 13 can prevent the front panel and the back panel 12 from dislocation movement when being riveted, and the perpendicularity between the core rod 32 and the front panel and the back panel 12 is ensured.

On the basis of the above embodiment, the present utility model provides another embodiment, as shown in fig. 9 and fig. 10, four clamps are simultaneously installed on one bottom plate, and in some application scenarios, if only one clamp is provided, the production efficiency is low, and based on the clamps in the prior art, the four clamps are simultaneously combined on one bottom plate; two adjacent clamps can be directly connected with the pressing cylinder 51 through a pressing cylinder 51, and the middle part of the pressing plate 52 can be directly used for clamping the cam 1 on the adjacent clamps through the pressing cylinder 51.

FIG. 9 is a schematic view of the cam when it has not been clamped on the clamp;

FIG. 10 is a schematic illustration of the cam being clamped on a clamp;

when the clamp of the embodiment is used, the front face of the cam 1 can be riveted by the left two clamps, the back face of the cam 1 can be riveted by the right two clamps, and the production efficiency of the cam 1 is improved.

The components (components not illustrating specific structures) selected in the application are all common standard components or components known to those skilled in the art, and the structures and principles of the components are all known to those skilled in the art through technical manuals or through routine experimental methods.

In the description of embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present utility model may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. A cam riveting clamp, comprising:

the core pulling mechanism is connected with the core rod and is suitable for driving the core rod to move up and down, and the section of the core rod is matched with the section of the cam mounting hole.

2. The cam riveting clamp of claim 1 wherein,

the compressing mechanism comprises

The compression cylinder is fixedly arranged on the bottom plate;

3. The cam riveting clamp of claim 2 wherein,

the compressing mechanism also comprises

4. The cam riveting clamp of claim 1 wherein,

the floating mechanism comprises

5. The cam riveting clamp of claim 4 wherein,

the limiting baffle ring is suitable for being abutted against the riveting platform so as to limit the guide post riveting platform from being separated from the upper end of the base.

6. The cam riveting clamp of claim 4 wherein,

the core pulling mechanism comprises

The core pulling cylinder is fixedly arranged in the base;

7. The cam riveting clamp of claim 1 wherein,

the base comprises a U-shaped base body and a cylindrical base body;

the riveting platform is in sliding fit with the cylindrical seat body;

the core pulling mechanism is arranged in the U-shaped seat body.

8. The cam riveting clamp of claim 1 wherein,

when the riveting platform is in the floating position, the core pulling mechanism drives the upper end of the core rod to extend out of the riveting platform, and the extending part of the core rod is used as a positioning part for cam installation.