Automatic riveting tool

Abstract

The utility model relates to the technical field of workpiece machining, in particular to an automatic riveting tool which comprises a base, a riveting press and a switch control system of the riveting press, the riveting press is connected to the base, the riveting press is used for riveting workpieces, and the switch control system is provided with a control signal input end for turning off the riveting press. The riveting machine comprises a transmission rod facing a workpiece riveting point in the placing table; the pressure sensing switch is arranged on the transmission rod in a connecting manner; the pressure sensing surface of the pressure sensing switch is connected with a punch provided with a riveting workpiece; a control signal output end of the pressure sensing switch is connected to a control signal input end for closing the riveting press; the base is further provided with a pneumatic telescopic system higher than the containing table in position, and the pneumatic telescopic system is provided with a manual switch which is manually started. The pneumatic telescopic system is provided with a telescopic rod which stretches downwards, a pressing block is arranged below the telescopic rod and is called a pressing block, and the pressing block is located above the workpiece in the containing table. Automatic detection and riveting of workpieces are achieved, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of workpiece processing technology, and in particular to a riveting fixture. Background Technology

[0002] Riveting is a method of connecting workpieces in machining. Riveting can provide a high-strength connection, such as connecting parts with rivets or rivets. This type of connection is usually more robust than welding or bolting.

[0003] However, some workpieces require manual fixing during riveting, and the riveting points need to be manually inspected after riveting, which is cumbersome and affects production efficiency. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the prior art, the present invention is proposed.

[0006] An automatic riveting fixture includes a base, on which a riveting machine for riveting workpieces is connected, and a switch control system for the riveting machine, wherein the switch control system is provided with a control signal input terminal for turning off the riveting machine.

[0007] The riveting machine includes a drive rod that moves toward the riveting point of the workpiece placed on the table;

[0008] It also includes a pressure sensing switch, which is connected and disposed on the transmission rod;

[0009] The pressure-sensing switch includes a pressure-sensing component, referred to as a pressure-sensing surface;

[0010] A punch for riveting a workpiece is connected to the pressure sensing surface of the pressure sensor switch, and the punching direction of the punch is perpendicular to the pressure sensing surface.

[0011] The control signal output terminal of the pressure sensing switch is connected to the control signal input terminal for shutting down the riveting machine;

[0012] The base is also equipped with a pneumatic telescopic system positioned higher than the placement platform, and the pneumatic telescopic system is equipped with a manual switch for manual activation.

[0013] The pneumatic telescopic system is equipped with a telescopic rod that extends and retracts downwards. Below the telescopic rod is a pressure block called a clamping block, which is located above the workpiece in the placement table.

[0014] The above design firstly involves setting up a placement platform and installing a pneumatic telescopic system above it. The pneumatic telescopic system uses clamping blocks to press the workpiece in the placement platform. It also includes a manual start switch for securing large workpieces. Secondly, a pressure sensor switch on the riveting machine's transmission rod senses whether the pressure of the riveting machine's punch has reached a predetermined value, automatically detecting the riveting pressure at the riveting points and eliminating the need for manual inspection, thus saving manpower. Finally, a switch control system is implemented. This system first controls the clamping blocks of the pneumatic telescopic system to press the workpiece in the placement platform. The riveting machine then rivets the workpiece at the riveting points in the placement platform. When the predetermined value is reached, a signal is sent to the switch control system to stop riveting. Once riveting is complete, the workpiece in the placement platform is automatically secured, and the pressure sensor switch detects whether the riveting pressure has reached the required level, achieving automatic riveting of the workpiece, improving production efficiency and saving labor.

[0015] Preferably, the clamping block is made of polyacrylaldehyde material; the clamping block of polyacrylaldehyde material has good rigidity and strong wear resistance. The clamping block of this material can stably clamp the workpiece, facilitate the riveting of the workpiece, and improve the riveting quality of the workpiece.

[0016] Preferably, the placement table is provided with a groove for placing the workpiece, called a receiving groove, and the workpiece riveting position of the placement table is also provided with an opening that connects to the receiving groove, called an open opening, and the punch points from the open opening to the workpiece riveting point in the receiving groove; by providing the receiving groove, the workpiece can be initially positioned by being placed in the receiving groove, which facilitates the pneumatic telescopic system to control the clamping block to clamp the workpiece, and by providing the open opening, the riveting machine can rivet the workpiece in the receiving groove through the open opening, thereby improving the workpiece riveting efficiency.

[0017] Preferably, the clamping block is provided with a structure below it that allows it to be embedded in a receiving groove; the clamping block can be embedded in the receiving groove, so that the clamping block can more tightly clamp the workpiece in the receiving groove, which facilitates the riveting machine to rivet the workpiece.

[0018] Preferably, two sliders are arranged around the receiving groove to clamp the workpiece in the receiving groove. The side of the slider facing the receiving groove is designated as the front, and the side facing away from the receiving groove is designated as the back. An elastic structure is connected to the back of the slider. The two sliders are respectively disposed on two opposite sides of the receiving groove and are arranged opposite each other. By providing sliders with elastic structures, it is convenient to initially clamp the workpiece in the receiving groove and to facilitate the clamping block to press the workpiece, thereby improving production efficiency.

[0019] Preferably, an inclined surface is provided above the front of the two sliders; by providing the inclined surface, the workpiece can push the slider open through the inclined surface without having to push the slider open, thus improving production efficiency.

[0020] Preferably, the riveting machine includes a bracket, which is threadedly connected to the base; the pressure sensing switch is provided with a stainless steel metal housing, which is connected to the end face of the transmission rod pointing towards the workpiece; a steel plate is connected to the pressure sensing surface of the pressure sensing switch, and the punch is connected to the steel plate; the riveting machine is threadedly connected to the base, which improves the stability of the connection of the riveting machine; the pressure sensing switch is connected to the transmission rod through the stainless steel metal housing, and the steel plate connected to the punch is provided on the pressure sensing surface, which improves the stability of the connection between the pressure sensor and the riveting machine and improves the riveting quality of the workpiece.

[0021] Preferably, a fixing frame is also connected to the base; the pneumatic telescopic system is provided with a pneumatic cylinder that drives the telescopic rod, and the pneumatic cylinder is connected to the fixing frame; by providing a fixing frame, it is convenient to install the pneumatic cylinder of the pneumatic telescopic system, and it is convenient for the pneumatic cylinder to stably press the workpiece. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0023] Figure 1 A schematic diagram of the overall structure of the automatic riveting fixture according to an embodiment of this utility model;

[0024] Figure 2 A schematic diagram of the structure of an automatic riveting fixture without the pneumatic telescopic system provided in one embodiment of this utility model;

[0025] Figure 3 In one embodiment of this utility model, the automatic riveting fixture is described. Figure 2 Top view of the structure. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0029] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in an embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0030] Example 1

[0031] Reference Figure 1 and Figure 2 This embodiment provides an automatic riveting fixture, including a base 1, on which a riveting machine 2 for riveting workpieces is connected, and a switch control system for the riveting machine 2, wherein the switch control system is provided with a control signal input terminal for turning off the riveting machine 2.

[0032] The riveting machine 2 includes a transmission rod that moves towards the riveting point of the workpiece in the placement table 3; it also includes a pressure sensing switch 5, which is connected to the transmission rod; the pressure sensing switch 5 includes a pressure sensing component, called a pressure sensing surface; a punch for riveting the workpiece is connected to the pressure sensing surface of the pressure sensing switch 5, and the punching direction of the punch is perpendicular to the pressure sensing surface; the control signal output terminal of the pressure sensing switch 5 is connected to the control signal input terminal for shutting down the riveting machine 2; a pneumatic telescopic system is also provided on the base 1, which is positioned higher than the placement table 3, and the pneumatic telescopic system is equipped with a manual start switch; the pneumatic telescopic system is equipped with a telescopic rod that extends downwards, and a pressure block called a clamping block 4 is provided below the telescopic rod, which is located above the workpiece in the placement table 3; firstly, by setting up the placement table 3 and setting up the pneumatic telescopic system above the placement table 3, the pneumatic telescopic system clamps the workpiece in the placement table 3 through the clamping block 4, which can fix large-sized workpieces; secondly, by setting up the transmission rod of the riveting machine 2... The pressure sensor switch 5 can sense whether the pressure of the punch of the riveting machine 2 has reached the predetermined value, automatically detecting the riveting pressure at the riveting point, saving manpower by eliminating the need for manual inspection. Finally, by setting up a switch control system, the switch control system first controls the clamping block 4 of the pneumatic telescopic system to press the workpiece on the placement table 3. The riveting machine 2 rivets the workpiece at the riveting point in the placement table 3. When the predetermined value of the pressure sensor switch 5 is reached, a signal is sent to the switch control system to stop riveting. After riveting is completed, the workpiece in the placement table 3 can be automatically fixed. The pressure sensor switch 5 senses whether the riveting pressure has reached the standard, realizing automatic riveting of the workpiece, improving production efficiency and saving manpower. The switch control system is a microprocessor control system of model S7-1200, which is a commonly used system by those skilled in the art. The pressure sensor switch 5 is model X806. The trigger pressure of the pressure sensor switch 5 is adjustable. When the pressure of the punch reaches the trigger pressure of the pressure sensor switch 5, the pressure sensor switch 5 sends a signal to the switch control system.

[0033] The clamping block 4 is made of polyacrylaldehyde material; the clamping block 4 made of polyacrylaldehyde material has good rigidity and strong wear resistance. The clamping block 4 made of this material can stably clamp the workpiece, facilitate the riveting of the workpiece, and improve the riveting quality of the workpiece.

[0034] The placement table 3 is provided with a groove for placing the workpiece, called the receiving groove. The workpiece riveting position of the placement table 3 is also provided with an opening that connects to the receiving groove, called the open opening. The punch points from the open opening to the workpiece riveting point in the receiving groove. By setting the receiving groove, the workpiece can be initially positioned by placing it in the receiving groove, which facilitates the pneumatic telescopic system to control the clamping block 4 to clamp the workpiece. Furthermore, by setting the open opening, the riveting machine 2 can rivet the workpiece in the receiving groove through the open opening, thereby improving the workpiece riveting efficiency.

[0035] The clamping block 4 is provided with a structure that allows it to be embedded in the receiving groove; the clamping block 4 can be embedded in the receiving groove, so that the clamping block 4 can press the workpiece in the receiving groove more tightly, which facilitates the riveting machine 2 to rivet the workpiece.

[0036] In use, the workpieces to be riveted are placed in the receiving groove, with the lower surface of the workpiece resting against the cavity of the receiving groove. Then, the manual switch of the pneumatic telescopic system is activated, and the telescopic rod of the pneumatic telescopic system is pressed down. The clamping block 4 on the telescopic rod presses the workpiece in the receiving groove downward. The switch control system controls the start of two riveting machines 2. The drive rods of the two riveting machines 2 extend out from the open end and use punches to rivet the riveting points on both sides of the workpiece. The two machines work together to improve work efficiency. When the pressure of the punches of the riveting machines 2 reaches the predetermined value of the pressure sensing switch 5, the pressure sensing switch 5 sends a signal to the switch control system, which controls the shutdown of the riveting machines 2 and the retraction of the drive rods. The pneumatic telescopic system's telescopic rod retracts, the clamping block 4 lifts, and the workpiece riveting is complete. The riveted workpiece is then removed and replaced with an unriveted one. Repeated and rapid riveting of batches of workpieces is possible, simplifying operation and improving production efficiency. If the riveting time of the riveting machine 2 exceeds 8 seconds without reaching the preset pressure of the pressure sensor switch 5, the start-up control system stops the riveting machine 2, and the clamping block 4 does not lift. The reset button of the switch control system must be pressed manually. This indicates a problem with the workpiece riveting, enabling automatic detection of the riveting process and eliminating the need for repeated manual checks, thus improving production efficiency.

[0037] Example 2

[0038] refer to Figures 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0039] Two sliders 6 are arranged around the receiving groove to clamp the workpiece in the receiving groove. The side of the slider 6 facing the receiving groove is the front and the side facing away from the receiving groove is the back. The back of the slider 6 is connected to an elastic structure. The two sliders 6 are respectively arranged on two opposite sides of the receiving groove. By setting the sliders 6 with elastic structures, it is convenient to initially clamp the workpiece in the receiving groove and to make it convenient for the clamping block 4 to press the workpiece, thereby improving production efficiency.

[0040] An inclined surface is provided above the front of the two sliders 6; by setting the inclined surface, the workpiece can push the slider 6 open through the inclined surface without having to push the slider 6 open, thus improving production efficiency.

[0041] The riveting machine 2 includes a bracket 7, which is threadedly connected to the base 1; a pressure sensing switch 5 is provided with a stainless steel metal shell, which is connected to the end face of the transmission rod pointing towards the workpiece; a steel plate is connected to the pressure sensing surface of the pressure sensing switch 5, and a punch is connected to the steel plate; the riveting machine 2 is threadedly connected to the base 1, which improves the stability of the connection of the riveting machine 2; the pressure sensing switch 5 is connected to the transmission rod through the stainless steel metal shell, and the steel plate connected to the punch is provided on the pressure sensing surface, which improves the stability of the connection between the pressure sensor and the riveting machine 2 and improves the riveting quality of the workpiece.

[0042] A fixed frame 8 is also connected to the base 1; the pneumatic telescopic system is equipped with a pneumatic cylinder 9 that drives the telescopic rod, and the pneumatic cylinder 9 is connected to the fixed frame 8; by setting the fixed frame 8, it is convenient to install the pneumatic cylinder 9 of the pneumatic telescopic system, and it is convenient for the pneumatic cylinder 9 to stably press the workpiece.

[0043] In use, when the workpiece is placed into the receiving groove, the workpiece will push the slider 6 open from the inclined surface on the front of the two sliders 6. The elastic structure behind the slider 6 is in a compressed state. Then the workpiece placed in the receiving groove is initially clamped by the slider 6, which makes it easy for the clamping block 4 to press the workpiece. Then the riveting machine 2 rivets the workpiece in the receiving groove. Moreover, two pneumatic cylinders 9 are connected to the bracket 7. The pressure sensing switch 5 is connected to the transmission rod through a stainless steel metal shell. A steel plate connecting the punch is set on the pressure sensing surface to improve the stability of the connection between the pressure sensor and the riveting machine 2. The two pneumatic cylinders 9 press the two clamping blocks 4 to press the workpiece in the receiving groove, so that the workpiece is pressed more evenly, thereby facilitating the fixation of the workpiece.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic riveting fixture, comprising a base, on which a riveting machine for riveting workpieces is connected, and a switch control system for the riveting machine, the switch control system being provided with a control signal input terminal for shutting down the riveting machine, characterized in that: The riveting machine includes a drive rod that moves toward the riveting point of the workpiece placed on the table; It also includes a pressure sensing switch, which is connected and disposed on the transmission rod; The pressure-sensing switch includes a pressure-sensing component, referred to as a pressure-sensing surface; A punch for riveting a workpiece is connected to the pressure sensing surface of the pressure sensor switch, and the punching direction of the punch is perpendicular to the pressure sensing surface. The control signal output terminal of the pressure sensing switch is connected to the control signal input terminal for shutting down the riveting machine; The base is also equipped with a pneumatic telescopic system positioned higher than the placement platform, and the pneumatic telescopic system is equipped with a manual switch for manual activation. The pneumatic telescopic system is equipped with a telescopic rod that extends and retracts downwards. Below the telescopic rod is a pressure block called a clamping block, which is located above the workpiece in the placement table.

2. The automatic riveting fixture according to claim 1, characterized in that: The clamping block is made of polyacrylaldehyde material.

3. The automatic riveting fixture according to claim 2, characterized in that: The placement platform is provided with a groove for placing the workpiece, called the receiving groove. The workpiece riveting position of the placement platform is also provided with an opening that connects to the receiving groove, called the open opening. The punch points from the open opening to the workpiece riveting point in the receiving groove.

4. The automatic riveting fixture according to claim 3, characterized in that: The clamping block is provided with a structure that allows for embedding into a receiving groove.

5. The automatic riveting fixture according to claim 4, characterized in that: Two sliders are arranged around the receiving groove to squeeze the workpiece in the receiving groove. The side of the slider facing the receiving groove is the front side and the side facing away from the receiving groove is the back side. An elastic structure is connected to the back side of the slider. The two sliders are respectively disposed on two opposite sides of the receiving groove, and the two sliders are disposed opposite each other.

6. The automatic riveting fixture according to claim 5, characterized in that: A bevel is provided above the front of both sliders.

7. The automatic riveting fixture according to claim 1, characterized in that: The riveting machine includes a bracket, which is threadedly connected to the base. The pressure sensing switch is provided with a stainless steel metal housing, which is connected to the end face of the transmission rod pointing towards the workpiece. A steel plate is connected to the pressure sensing surface of the pressure sensor switch, and the punch is connected to the steel plate.

8. The automatic riveting fixture according to claim 1, characterized in that: A fixing frame is also connected to the base; The pneumatic telescopic system is equipped with a pneumatic cylinder that drives the telescopic rod, and the pneumatic cylinder is connected to the fixed frame.

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