Nut automatic detection equipment

Abstract

The utility model relates to the technical field of nut detection, and particularly discloses an automatic nut detection device which comprises a supporting mechanism, an appearance detection mechanism, a thread detection mechanism, a feeding mechanism and a discharging mechanism. The nut passes through the first detection station and the second detection station in sequence, the outline of the nut is detected through the camera, the internal thread of the nut is detected through the rotatable bolt, after detection is completed, the nut can be taken down through the discharging mechanism, and full-automatic detection of the nut is achieved. A first turnout and a second turnout are arranged in a discharging channel of the discharging mechanism, electric control doors are arranged at inlets and connected with the appearance detection mechanism and the thread detection mechanism through electric signals, and whether the appearance detection mechanism and the thread detection mechanism are qualified or not is judged according to the electric signals sent by the appearance detection mechanism and the thread detection mechanism. And qualified products and defective products can be discharged from the first turnout and the second turnout respectively, so that automatic shunting is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to an automatic nut detection equipment. Background Art

[0002] Nuts are the most common connecting parts on equipment. After processing, it is necessary to detect the nuts to determine whether they are qualified and can meet the usage requirements. The detection is mainly divided into two aspects. One is the detection of the overall outer contour, and the other is the detection of its internal thread. It is judged whether it meets the regulations from these two aspects.

[0003] Conventional outer contour detection is judged by combining a ruler and the naked eye, and the internal thread detection is carried out by a hand-held detection structure. They both have the problem of low detection accuracy, extremely rely on the experience of the operator, and at the same time their efficiency is very low. Summary of the Invention

[0004] The utility model is made in consideration of the foregoing problems. The purpose of the utility model is to provide an automatic nut detection equipment, which can realize the full-automatic detection of nuts, with high detection accuracy and high detection efficiency.

[0005] To achieve the above object, the utility model provides an automatic nut detection equipment, which includes a support mechanism, an outer shape detection mechanism, a thread detection mechanism, a feeding mechanism and a discharging mechanism. The support mechanism includes a workbench and a support turntable rotatably fixed on the workbench. The workbench is provided with a first detection station and a second detection station arranged at intervals along the circumferential direction of the support turntable. The outer shape detection mechanism is located at the first detection station, and the thread detection mechanism is located at the second detection station. The support turntable is provided with a plurality of installation stations for placing the nuts. When the support turntable rotates, the installation stations sequentially pass through the first detection station and the second detection station;

[0006] The feeding mechanism is located on one side of the support turntable and is used to convey the nuts to be detected to the installation stations. The discharging mechanism is located on one side of the support turntable and is used to remove the detected nuts from the installation stations.

[0007] According to the above-mentioned automatic nut detection equipment, it further includes a positioning mechanism. The positioning mechanism includes a positioning block and a positioning bolt. The positioning block is fixed on the installation station, and the positioning block is provided with a positioning groove adapted to the nut. The nut can be placed in the positioning groove. The positioning bolt is rotatably connected to the positioning block, and one end of the positioning bolt can extend into the positioning groove and abut against one side of the nut.

[0008] An automatic nut detection device as described above, the blanking mechanism includes a clamping cylinder and a blanking channel. The blanking channel is located on one side of the support turntable. The clamping cylinder is movably arranged between the support turntable and the blanking channel. The clamping cylinder is used to clamp the nut in the positioning groove onto the blanking channel.

[0009] An automatic nut detection device as described above, the blanking channel includes a main channel, a first branch channel and a second branch channel connected to the bottom end of the main channel. Electric control doors are provided at the connection points of the main channel with the first branch channel and the second branch channel. Both of the two electric control doors are electrically connected to the outer shape detection mechanism and the thread detection mechanism.

[0010] An automatic nut detection device as described above, the blanking mechanism further includes a translation cylinder. The clamping cylinder is movably arranged above the blanking channel and the support turntable through the translation cylinder.

[0011] An automatic nut detection device as described above, the outer shape detection mechanism includes a camera located directly above the first detection station. The thread detection mechanism includes a screw rod, a rotating oil cylinder and a lifting oil cylinder. The rotating oil cylinder is arranged on the second detection station in a liftable manner through the lifting oil cylinder. The screw rod is connected to the output shaft of the rotating oil cylinder.

[0012] An automatic nut detection device as described above, the feeding mechanism includes a vibrating bowl and a feeding channel. One end of the feeding channel is connected to the vibrating bowl, and the other end of the feeding channel is located on one side of the support turntable.

[0013] The utility model has the following beneficial effects: The feeding mechanism transports the nuts to be detected onto the support turntable. During the rotation of the support turntable, the nuts will sequentially pass through the first detection station and the second detection station, that is, the outer contour of the nuts is detected by the camera, and the internal thread of the nuts is detected by the rotatable bolt. After the detection is completed, the nuts can be removed by the blanking mechanism, realizing the full automation of nut detection. And the blanking channel of the blanking mechanism is provided with a first branch channel and a second branch channel, and electric control doors are provided at their inlets. The electric control doors are electrically connected to the outer shape detection mechanism and the thread detection mechanism. According to the electrical signals sent by the outer shape detection mechanism and the thread detection mechanism, it can be judged whether they are qualified, and the qualified products and defective products can be discharged from the first branch channel and the second branch channel respectively, realizing their automatic diversion. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the embodiment;

[0015] Figure 2 is the assembled structural schematic diagram of the thread detection mechanism and the positioning mechanism of the embodiment;

[0016] Figure 3 It is a schematic structural diagram of the positioning mechanism of the embodiment.

[0017] In the figure:

[0018] 1. Support mechanism; 11. Workbench; 12. Support turntable;

[0019] 2. Outer shape detection mechanism; 21. Camera;

[0020] 3. Thread detection mechanism; 31. Screw rod; 32. Rotating oil cylinder; 33. Lifting oil cylinder;

[0021] 4. Loading mechanism; 41. Loading track;

[0022] 5. Unloading mechanism; 51. Clamping cylinder; 52. Unloading track; 521. Main track; 522. First branch track; 523. Second branch track; 524. Electric control door; 53. Translating cylinder;

[0023] 6. Positioning mechanism; 61. Positioning block; 611. Positioning groove; 62. Positioning bolt. Specific implementation mode

[0024] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0025] As Figures 1-3 shown, an automatic nut detection device includes a support mechanism 1, an outer shape detection mechanism 2, a thread detection mechanism 3, a loading mechanism 4 and an unloading mechanism 5.

[0026] Among them, the support mechanism 1 includes a workbench 11 and a support turntable 12 rotatably fixed on the workbench 11. There are a first detection station and a second detection station arranged at intervals along the circumferential direction of the support turntable 12 on the workbench 11. The outer shape detection mechanism 2 is located at the first detection station, and the thread detection mechanism 3 is located at the second detection station. There are a plurality of installation stations for placing nuts on the support turntable 12. When the support turntable 12 rotates, the installation stations sequentially pass through the first detection station and the second detection station. In this embodiment, when the support turntable 12 rotates to rotate an installation station with a nut to be tested to the first detection station, the outer shape detection mechanism 2 performs an outer shape detection on it, and the feeding mechanism 4 feeds the next installation station. After both are completed, the support turntable 12 continues to rotate one station. The nut in the previous installation station is subjected to a thread detection by the thread detection mechanism 3, and the nut in the next installation station is subjected to an outer shape detection by the outer shape detection mechanism 2. At the same time, the feeding mechanism 4 feeds another installation station. After completion, the blanking mechanism 5 performs blanking, realizing the full-automatic detection of nuts, and multiple stations operate simultaneously, greatly improving the detection efficiency.

[0027] Specifically, the feeding mechanism 4 is located on one side of the support turntable 12 and is used to convey the nuts to be tested onto the installation stations. The blanking mechanism 5 is located on one side of the support turntable 12 and is used to remove the tested nuts from the installation stations.

[0028] In order to realize the positioning of the nuts on the support turntable 12, a positioning mechanism 6 is further included. The positioning mechanism 6 includes a positioning block 61 and a positioning bolt 62. The positioning block 61 is fixed on the installation station, and a positioning groove 611 adapted to the nuts is provided on the positioning block 61. The nuts can be placed in the positioning groove 611. The positioning bolt 62 is rotatably connected to the positioning block 61, and one end of the positioning bolt 62 can extend into the positioning groove 611 and abut against one side of the nut. Then the feeding mechanism 4 conveys the nuts into the positioning groove 611. By rotating the positioning bolt 62 in the opposite direction, it moves toward the side close to the nut until it abuts against the nut, restricting the movement of the nut. When blanking, rotate the positioning bolt 62 in the reverse direction.

[0029] Among them, the blanking mechanism 5 includes a clamping cylinder 51 and a blanking channel 52. The blanking channel 52 is located on one side of the support turntable 12. The clamping cylinder 51 is movably arranged between the support turntable 12 and the blanking channel 52. The clamping cylinder 51 is used to clamp the nut in the positioning groove 611 onto the blanking channel 52. In this embodiment, the blanking mechanism 5 further includes a translation cylinder 53. The clamping cylinder 51 is movably arranged directly above the blanking channel 52 and the support turntable 12 through the translation cylinder 53. When the clamping cylinder 51 is directly above the support turntable 12, after the detection is completed, when the nut rotates to directly below the clamping cylinder 51, the clamping cylinder 51 clamps the nut, and the translation cylinder 53 drives the clamping cylinder 51 to translate to directly above the blanking channel 52, and then drops the nut, which falls into the blanking channel 52.

[0030] In order to separate the qualified products and defective products, the blanking channel 52 includes a main channel 521, a first branch channel 522 and a second branch channel 523 connected to the bottom end of the main channel 521. Electric control doors 524 are provided at the joints of the main channel 521 with the first branch channel 522 and the second branch channel 523. Both electric control doors 524 are electrically connected to the appearance detection mechanism 2 and the thread detection mechanism 3. In this embodiment, the qualified products flow down from the first branch channel 522, and the defective products flow down from the second branch channel 523. After being detected by the appearance detection mechanism 2 and the thread detection mechanism 3, it is judged whether the product is qualified. If so, the electric control door 524 of the first branch channel 522 is controlled to open. If not, the electric control door 524 of the second branch channel 523 is controlled to open.

[0031] Among them, the appearance detection mechanism 2 includes a camera 21 located directly above the first detection station. The appearance of the nut is photographed by the camera 21 and judged. The thread detection mechanism 3 includes a screw rod 31, a rotation oil cylinder 32 and a lifting oil cylinder 33. The rotation oil cylinder 32 is arranged on the second detection station in a liftable manner through the lifting oil cylinder 33. The screw rod 31 is connected to the output shaft of the rotation oil cylinder 32. When the nut rotates to the second detection station, the lifting oil cylinder 33 drives the screw rod 31 to descend to contact the nut, and then the rotation oil cylinder 32 drives the screw rod 31 to rotate so that it meshes with the internal thread of the nut. If successful meshing can be achieved, the internal nut size of the nut meets the standard. If not, the nut is a defective product.

[0032] Specifically, the feeding mechanism 4 includes a vibrating bowl and a feeding channel 41. One end of the feeding channel 41 is connected to the vibrating bowl, and the other end of the feeding channel 41 is located on one side of the support turntable 12. The vibrating bowl vibrates so that the nuts can enter the feeding channel 41 and then be fed through the feeding channel 41.

[0033] The technical solution of the present utility model has been elaborated in detail in conjunction with the accompanying drawings. The described embodiments are used to help understand the idea of the present utility model. The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the technical field to which the utility model pertains may make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0035] In addition, in the present utility model, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

Claims

1. An automatic nut detection device, characterized in that, It includes a support mechanism, an outer shape detection mechanism, a thread detection mechanism, a loading mechanism, and an unloading mechanism. The support mechanism includes a workbench and a support turntable rotatably fixed on the workbench. The workbench is provided with a first detection station and a second detection station arranged at intervals along the circumference of the support turntable. The outer shape detection mechanism is located at the first detection station, and the thread detection mechanism is located at the second detection station. The support turntable is provided with a plurality of installation stations for placing the nuts. When the support turntable rotates, the installation stations sequentially pass through the first detection station and the second detection station. The loading mechanism is located on one side of the support turntable and is used to convey the nuts to be detected to the installation stations. The unloading mechanism is located on one side of the support turntable and is used to remove the detected nuts from the installation stations.

2. The automatic nut detection device according to claim 1, characterized in that, It further includes a positioning mechanism. The positioning mechanism includes a positioning block and a positioning bolt. The positioning block is fixed on the installation station, and the positioning block is provided with a positioning groove adapted to the nut. The nut can be placed in the positioning groove. The positioning bolt is rotatably connected to the positioning block, and one end of the positioning bolt can extend into the positioning groove and abut against one side of the nut.

3. The automatic nut detection device according to claim 2, characterized in that, The unloading mechanism includes a clamping cylinder and an unloading channel. The unloading channel is located on one side of the support turntable. The clamping cylinder is movably arranged between the support turntable and the unloading channel and is used to clamp the nut in the positioning groove onto the unloading channel.

4. An automatic nut detection device according to claim 3, characterized in that, The unloading channel includes a main channel, a first branch channel, and a second branch channel connected to the bottom end of the main channel. Electric control doors are provided at the connections of the main channel with the first branch channel and the second branch channel. Both of the two electric control doors are electrically connected to the outer shape detection mechanism and the thread detection mechanism by electrical signals.

5. An automatic nut detection device according to claim 3, characterized in that, The unloading mechanism further includes a translation cylinder. The clamping cylinder is movably arranged directly above the unloading channel and the support turntable through the translation cylinder.

6. The automatic nut detection device according to claim 1, characterized in that, The outer shape detection mechanism includes a camera directly above the first detection station. The thread detection mechanism includes a screw rod, a rotation oil cylinder, and a lifting oil cylinder. The rotation oil cylinder is arranged above the second detection station in a liftable manner through the lifting oil cylinder. The screw rod is connected to the output shaft of the rotation oil cylinder.

7. An automatic nut detection device according to claim 1, characterized in that, The loading mechanism includes a vibrating disk and a loading channel. One end of the loading channel is connected to the vibrating disk, and the other end of the loading channel is located on one side of the support turntable.

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