Rivet clamping and conveying device

Abstract

The utility model discloses a rivet clamping and conveying device which comprises a conveying track and a clamping assembly reciprocating along the conveying track, the clamping assembly comprises a left clamping jaw, a right clamping jaw and an ejector rod, the left clamping jaw and the right clamping jaw can be arranged in a relative clamping or opening mode, and the ejector rod is arranged between the left clamping jaw and the right clamping jaw in an up-down moving mode. A rivet is clamped between the left clamping jaw and the right clamping jaw, and the ejector rod abuts against the top of the rivet. During discharging, the left clamping jaw and the right clamping jaw are suspended to loosen the rivet, and the ejector rod synchronously ejects downwards and drives the rivet to be inserted into a corresponding rivet hole in the thin plate. On the premise that a rivet and a rivet hole are aligned up and down, the rivet is released in a suspended mode through the left clamping jaw and the right clamping jaw, under pushing of the ejector rod, the rivet is rapidly and accurately inserted into the rivet hole, and the success rate of automatic rivet feeding is greatly increased; and meanwhile, suspended discharging is achieved, the probability that the surfaces of the thin plates are scratched is effectively reduced, and therefore the yield of products can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to a rivet clamping and feeding device. Background Art

[0002] At present, in the rivet assembly used for sheet-like thin plates of various sizes, the rivets are generally loaded through a vibrating plate, and then the rivets are taken out one by one by a material-taking robot and inserted into the corresponding rivet holes on the thin plate.

[0003] However, in the actual production process, when the material picking robot places the rivet, the rivet is easily affected by the external environment during the falling process, resulting in a position deviation from the rivet hole, which makes it impossible to smoothly place the rivet into the rivet hole; at the same time, the clamping end of the material picking robot is easily too close to the surface of the thin plate, and there is a probability of scratching the surface of the thin plate, resulting in a low product yield. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an improved rivet clamping and feeding device.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A rivet clamping and feeding device comprises a transmission track and a clamping assembly that reciprocates along the transmission track, wherein the clamping assembly comprises a left clamping jaw, a right clamping jaw, and a push rod, the left clamping jaw and the right clamping jaw can be relatively clamped or opened, the push rod is movably arranged between the left clamping jaw and the right clamping jaw, when clamping materials, the rivet is clamped between the left clamping jaw and the right clamping jaw, and the push rod touches the top of the rivet; when releasing materials, the left clamping jaw and the right clamping jaw are suspended in the air to release the rivet, and the push rod is synchronously pushed downward to drive the rivet into the corresponding rivet hole on the thin plate.

[0007] According to a specific implementation and preferred aspect of the utility model, the lower ends of the left clamping jaw and the right clamping jaw are respectively formed with a clamping groove, when clamping the material, the rivet extends vertically, and the left and right clamping grooves are relatively clamped on the outer wall of the rivet. Here, the clamping is stable, and it is convenient to realize the precise vertical alignment of the rivet and the rivet hole.

[0008] Preferably, the left and right clamping grooves are both V-shaped grooves, thereby reducing the contact area between the left and right clamping jaws and the rivet, and reducing the wear of the rivet during the clamping and conveying process.

[0009] Preferably, the left clamp and the right clamp are symmetrically arranged, wherein the left clamp comprises a clamp body extending vertically, an inclined section extending obliquely downward and inward from the clamp body, and a horizontal section extending horizontally inward from the lower end of the inclined section, and a slot is formed on the horizontal section. Here, the structure is simple and easy to process and assemble.

[0010] According to another specific implementation and preferred aspect of the utility model, the clamping assembly also includes a clamping seat and a lifting drive member for driving the clamping seat to move up and down, wherein the left clamping jaw and the right clamping jaw are respectively connected to the bottom of the clamping seat by sliding along the left and right directions.

[0011] Preferably, the push rod extends vertically, and when clamping materials, the center line of the push rod coincides with the center line of the rivet. Here, the push force on the rivet is evenly distributed, reducing deformation.

[0012] Preferably, the push rod has an elastic tendency to maintain downward movement in the vertical direction. Here, after the left and right clamps release the rivet, the push rod can automatically pop out and quickly push the rivet into the rivet hole; at the same time, when the rivet is clamped at the discharge end of the vibration plate, the push rod can limit the height of the top of the rivet.

[0013] Furthermore, the clamping assembly also includes an auxiliary module and an elastic member, wherein the auxiliary module has a connecting portion located between the left clamping jaw and the right clamping jaw, a plug-in channel extending vertically is formed on the connecting portion, a push rod is inserted into the plug-in channel, and the elastic member abuts between the push rod and the inner wall of the plug-in channel.

[0014] According to another specific implementation and preferred aspect of the utility model, the push rod extends upward out of the plug-in channel, and a limiting ring piece is sleeved on the upper end of the push rod.

[0015] In addition, a slide is provided on the transmission track, and the clamping assembly is arranged on the slide; the clamping device also includes a detection module arranged on the slide, wherein the detection module is located on one side of the clamping assembly and is used to detect the position of the rivet hole. In some specific embodiments, the detection module determines the precise position of the rivet hole to be installed, and then feeds back the precise position information of the hole to the industrial computer, and the industrial computer and the PLC perform signal conversion to control the movement of the clamping assembly.

[0016] Due to the implementation of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] The prior art material-grabbing manipulator is prone to position deviation during feeding, which may result in the rivet being unable to be smoothly inserted into the rivet hole, and the manipulator is prone to scratching the surface of the thin plate. The present application designs the structure of the rivet clamping and feeding device as a whole, cleverly solving the shortcomings of the prior art. After adopting the clamping and feeding device, under the transmission of the transmission track, when the clamping assembly is docked with the discharge end of the vibration plate, the left and right clamping jaws clamp the rivet, and the top of the rivet is touched by the push rod to form a positioning, then the clamping assembly moves and drives the rivet to move to the top of the corresponding rivet hole on the thin plate, the left and right clamping jaws are suspended and opened to release the rivet, and the push rod synchronously drives the rivet to be pushed downward and inserted into the corresponding rivet hole. Therefore, compared with the prior art, the present invention, under the premise that the rivet and the rivet hole are aligned up and down, releases the rivet by the left and right clamping jaws in the air, and under the push of the push rod, the rivet is quickly and accurately inserted into the rivet hole, greatly improving the success rate of automatic rivet feeding; at the same time, the material is discharged in the air, effectively reducing the probability of scratching the surface of the thin plate, which is beneficial to improving the yield rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the rivet clamping and feeding device of the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 3 for Figure 1 A schematic diagram of the front view of the middle clamping assembly;

[0022] Figure 4 for Figure 3 BB-direction cross-sectional view;

[0023] Among them: D, rivet;

[0024] 1. Transmission track; z, slide seat;

[0025] 2. Clamping assembly; 20. Clamping seat; 21. Lifting drive; 22. Left clamping jaw; 220. Clamping jaw body; 221. Inclined section; 222. Horizontal section; 23. Right clamping jaw; 24. Ejector rod; 25. Auxiliary module; 250. Connecting part; t. Insertion channel; 26. Elastic member;

[0026] 3. Detection module. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0033] like Figures 1 to 4 As shown, the rivet clamping device involved in this embodiment includes a transmission track 1, a clamping assembly 2, and a detection module 3. The rivet clamping device is used to clamp and deliver rivets D one by one from the discharge end of the vibration plate to the rivet holes on the thin plate.

[0034] Specifically, the transmission track 1 extends horizontally and connects the discharge end of the vibration plate with each rivet hole on the thin plate, wherein a slide seat z is slidably connected to the transmission track 1, and the clamping assembly 2 is arranged on the slide seat z and reciprocates along the transmission track 1 with the slide seat z. In some specific embodiments, the slide seat z can also reciprocate horizontally in a direction perpendicular to the transmission track 1 under the drive of a conventional cylinder.

[0035] Combination Figure 3 As shown, the clamping assembly 2 includes a clamping seat 20 that is slidably connected to the slide seat z, a lifting drive 21 that drives the clamping seat 20 to move up and down, a left clamping jaw 22 and a right clamping jaw 23 that are slidably connected to the bottom of the clamping seat 20 along the left and right directions, and a push rod 24, wherein the left clamping jaw 22 and the right clamping jaw 23 can be relatively clamped or opened under the drive of a conventional power part, and the push rod 24 is movably set up and down between the left clamping jaw 22 and the right clamping jaw 23. When clamping materials, the rivet is clamped between the left clamping jaw 22 and the right clamping jaw 23, and the push rod 24 touches the top of the rivet; when releasing materials, the left clamping jaw 22 and the right clamping jaw 23 are suspended in the air to loosen the rivet, and the push rod 24 is synchronously pushed downward and drives the rivet to be inserted into the corresponding rivet hole on the thin plate.

[0036] In this example, the left clamping jaw 22 and the right clamping jaw 23 are symmetrically arranged. The structure of the left clamping jaw 22 is described below, and the structure of the right clamping jaw is also clear.

[0037] Specifically, the left clamping jaw 22 includes a vertically extending clamping jaw body 220, an inclined section 221 extending obliquely downward and inward from the clamping jaw body 220, and a horizontal section 222 extending horizontally inward from the lower end of the inclined section 221. A V-shaped groove is formed on the horizontal section 222. When clamping materials, the rivet extends vertically, and the left and right grooves are relatively clamped to the outer wall of the rivet.

[0038] The push rod 24 extends vertically, and when clamping materials, the center line of the push rod 24 coincides with the center line of the rivet. In some specific embodiments, the push rod 24 has an elastic tendency to maintain downward movement along the vertical direction.

[0039] Recombination Figure 4 As shown, for the convenience of implementation, the clamping assembly 2 also includes an auxiliary module 25 and an elastic member 26, wherein the auxiliary module 25 is fixedly connected to the clamping seat 20 and has a connecting portion 250 inserted between the left clamping jaw 22 and the right clamping jaw 23, and a plug-in channel t is formed on the connecting portion 250 extending from top to bottom, and the push rod 24 is inserted in the plug-in channel t, and the push rod 24 extends upward from the plug-in channel t, and a limiting ring is sleeved on the upper end of the push rod 24 to prevent the push rod 24 from falling in a free state; the push rod 24 is a stepped shaft, and the elastic member 26 is a spring sleeved on the push rod 24 and abuts between the shaft shoulder of the push rod 24 and the inner wall of the plug-in channel t.

[0040] At the same time, the left clamping jaw 22, the right clamping jaw 23 and the push rod 24 form a material clamping group, and two material clamping groups are arranged side by side and at intervals.

[0041] In addition, the detection module 3 is arranged on the slide seat z, wherein the detection module 3 is located on one side of the clamping assembly 2 and is used to detect the position of the rivet hole. In some specific embodiments, the detection module determines the precise position of the rivet hole to be installed, and then feeds back the precise position information of the hole to the industrial computer, and the industrial computer and the PLC perform signal conversion to control the movement of the clamping assembly. The detection module 3 adopts a conventional CCD mechanism.

[0042] In summary, after adopting the clamping and conveying device, under the transmission of the transmission track, when the clamping assembly is connected with the discharge end of the vibration plate, the left and right clamping jaws clamp the rivet, and the top rod touches the top of the rivet to form a positioning, then the clamping assembly moves and drives the rivet to move to the top of the corresponding rivet hole on the thin plate, the left and right clamping jaws are suspended and opened to release the rivet, and the top rod synchronously drives the rivet downward and inserts it into the corresponding rivet hole. Therefore, compared with the prior art, the utility model, on the one hand, releases the rivet in the air through the left and right clamping jaws under the premise that the rivet and the rivet hole are aligned up and down, and under the push of the top rod, the rivet is quickly and accurately inserted into the rivet hole, thereby greatly improving the success rate of automatic rivet feeding; at the same time, it realizes suspended discharge, which is effective The first is to effectively reduce the probability of scratches on the surface of the thin plate, which is beneficial to improving the yield rate of the product; secondly, the V-shaped groove is adopted, the clamping is stable, and it is easy to achieve accurate alignment of the rivet and the rivet hole up and down, and can reduce the contact area between the left and right clamps and the rivet, and reduce the wear of the rivet during the clamping and feeding process; thirdly, after the left and right clamps release the rivet, the push rod can automatically pop out and quickly push the rivet into the rivet hole; at the same time, when the rivet is clamped at the discharge end of the vibration plate, the push rod can limit the height of the top of the rivet; fourthly, the detection module determines the exact position of the rivet hole to be installed, and then feeds back the precise position information of the hole to the industrial computer, and the industrial computer and PLC perform signal conversion to control the movement of the clamping assembly.

[0043] The utility model is described in detail above, but the utility model is not limited to the above embodiments. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A rivet clamping and feeding device, characterized in that: It includes a transmission track and a clamping assembly that reciprocates along the transmission track, wherein the clamping assembly includes a left clamping jaw, a right clamping jaw, and a push rod, the left clamping jaw and the right clamping jaw can be relatively clamped or opened, and the push rod is movably arranged between the left clamping jaw and the right clamping jaw. When clamping materials, the rivet is clamped between the left clamping jaw and the right clamping jaw, and the push rod touches the top of the rivet; when releasing materials, the left clamping jaw and the right clamping jaw are suspended in the air to release the rivet, and the push rod is synchronously pushed downward to drive the rivet to be inserted into the corresponding rivet hole on the thin plate.

2. The rivet clamping and feeding device according to claim 1, characterized in that: The lower ends of the left clamping jaw and the right clamping jaw are respectively formed with clamping grooves. When clamping materials, the rivet extends vertically, and the left and right clamping grooves are relatively clamped on the outer wall of the rivet.

3. The rivet clamping and feeding device according to claim 2, characterized in that: The two left and right slots are both V-shaped slots.

4. The rivet clamping and feeding device according to claim 2, characterized in that: The left clamping jaw and the right clamping jaw are symmetrically arranged, wherein the left clamping jaw comprises a vertically extending clamping jaw body, an inclined section extending obliquely downward and inward from the clamping jaw body, and a horizontal section extending horizontally inward from the lower end of the inclined section, and the clamping slot is formed on the horizontal section.

5. The rivet clamping and feeding device according to any one of claims 1 to 4, characterized in that: The clamping assembly also includes a clamping seat and a lifting driving member for driving the clamping seat to move up and down, wherein the left clamping jaw and the right clamping jaw are respectively connected to the bottom of the clamping seat in a sliding manner along the left and right directions.

6. The rivet clamping and feeding device according to claim 1, characterized in that: The push rod extends vertically, and when clamping materials, the center line of the push rod is arranged to coincide with the center line of the rivet.

7. The rivet clamping and feeding device according to claim 1, characterized in that: The push rod has an elastic tendency to keep moving downward along the vertical direction.

8. The rivet clamping and feeding device according to claim 7, characterized in that: The clamping assembly also includes an auxiliary module and an elastic member, wherein the auxiliary module has a connecting portion located between the left clamping jaw and the right clamping jaw, and a plug-in channel is formed on the connecting portion that passes through the upper and lower parts. The push rod is inserted into the plug-in channel, and the elastic member abuts between the push rod and the inner wall of the plug-in channel.

9. The rivet clamping and feeding device according to claim 8, characterized in that: The push rod extends upwards out of the insertion channel, and a limiting ring piece is sleeved on the upper end of the push rod.

10. The rivet clamping and feeding device according to claim 1, characterized in that: A slide is provided on the transmission track, and the clamping assembly is arranged on the slide; the clamping device also includes a detection module arranged on the slide, wherein the detection module is located on one side of the clamping assembly and is used to detect the position of the rivet hole.

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