Efficient nut anti-reverse positioning device

Abstract

The invention provides an efficient nut anti-reverse positioning device, which comprises a nut conveying device, an anti-reverse nut detection device and a nut lifting positioning device, and is characterized in that the anti-reverse nut detection device comprises a detection block provided with a nut channel and a profiling conveying groove, a side cover plate, an anti-reverse limiting block and a conveying groove separation blade; the nut channel is connected with the profiling conveying groove; the side cover plate is arranged on the detection block, and a part enclosed by the side cover plate and the profiling conveying groove forms an inverted-T-shaped groove; the anti-reverse limiting block is arranged on the inverted-T-shaped groove and used for blocking a reverse nut. The conveying groove blocking piece is locked on the outlet end face of the profiling conveying groove through a screw, and a conveying groove through hole is formed in the position, corresponding to the middle through hole of the nut, of the outlet end of the profiling conveying groove. The device is simple in structure, the profiling conveying groove and the anti-reverse limiting block are designed according to the shapes of the nuts to prevent reverse nuts from being bad, and accurate screening and carrying of the nuts are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of anti-reverse of automobile parts, and in particular to a high-efficiency anti-reverse positioning device for automobile nuts during the transportation process of the automobile nuts. Background Art

[0002] In the automobile manufacturing industry, nuts are widely used, especially as the main component of automobile body parts. For round nuts with small bosses on the axial direction, the positive and negative shapes directly determine the processing results. During the production process, the nuts must be transferred and anti-reverse positioned. The existing technology uses manual placement and positioning of nuts in the working position, which costs a lot of manpower and is inefficient.

[0003] Therefore, there is still room for improvement in the anti-reverse positioning of nuts in the prior art. Summary of the invention

[0004] In view of the above-mentioned defects, the purpose of the present invention is to provide an efficient nut anti-reverse positioning device in the processing of automobile nuts, which uses a nut channel to complete the positive and negative screening of the nut to solve the existing technical problems.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] The invention discloses an efficient nut anti-reverse positioning device, which comprises a nut conveying device, a reverse nut detection device and a nut lifting and positioning device. The reverse nut detection device comprises a detection block with a nut channel and a profile conveying groove, a side cover plate, an anti-reverse limit block and a conveying groove baffle. The nut channel is connected to the profile conveying groove; the nut channel is an inclined channel; the side cover plate is arranged on the detection block, and the part surrounded by the side cover plate and the profile conveying groove forms an inverted convex groove, which is the profile of the nut; the anti-reverse limit block is arranged on the inverted convex groove to block the reverse nut; the conveying groove baffle is locked to the outlet end face of the profile conveying groove by a screw rod, and a conveying groove through hole is arranged at the outlet end of the profile conveying groove corresponding to the position of the middle through hole of the nut.

[0007] According to the efficient nut anti-reverse positioning device described in the preferred embodiment of the present invention, the reverse nut detection device also includes a blow-out air pipe and a blow-out air hole, one port of the blow-out air hole corresponds to the nut blocking position; the other port of the blow-out air hole is connected to the blow-out air pipe.

[0008] According to the efficient nut anti-reverse positioning device described in the preferred embodiment of the present invention, it is characterized in that the reverse nut detection device also includes a reverse nut discharge pipe, the side cover plate has a discharge port corresponding to the position of the blow-out air hole, and the inlet of the reverse nut discharge pipe is connected to the discharge port for receiving the reverse nut that is blown out.

[0009] According to the efficient nut anti-reverse positioning device described in the preferred embodiment of the present invention, the nut channel is a stepped channel, the thickness of the inlet end of the nut channel is greater than the thickness of the outlet end, and the inlet end of the nut channel covers the outlet end connected to the nut conveying device.

[0010] According to the efficient nut anti-reverse positioning device described in the preferred embodiment of the present invention, the reverse nut detection device also includes a device fixing block and a height adjustment block, and the device fixing block and the height adjustment block are used to fix and adjust the reverse nut detection device.

[0011] According to the efficient nut anti-reverse positioning device described in the preferred embodiment of the present invention, the nut lifting and positioning device includes a nut lifting and positioning cylinder, the piston rod of the nut lifting and positioning cylinder is connected to a positioning pin, the position of the positioning pin corresponds to the position of the conveying groove through hole, the positioning pin includes a cylinder and a cone arranged on the cylinder, and the bottom circle area of ​​the cone is smaller than the area of ​​the end face of the cylinder.

[0012] According to the efficient nut anti-reverse positioning device described in the preferred embodiment of the present invention, the nut lifting and positioning device also includes a nut anti-misplacement sensor, and the nut anti-misplacement sensor is used to sense the nut on the positioning pin.

[0013] According to the efficient nut anti-reverse positioning device described in the preferred embodiment of the present invention, the nut conveying device includes a vibrating plate, a vibration stabilizer and a slideway, and the outlet end of the slideway is inserted and connected to the inlet end of the nut channel.

[0014] The design concept of the present invention is to design a nut anti-reverse positioning device with a simple structure. The device utilizes the shape of the nut to design a contoured conveying trough and an anti-reverse limit block to effectively prevent the occurrence of reversed nuts. The reversed nuts are automatically discharged after being detected to improve equipment utilization. The reversed nuts are discharged by blowing. The device has a simple structure and does not require an ejector rod to complete the discharge process, thereby achieving accurate screening and transportation of the forward and reverse nuts. Moreover, the nut anti-reverse positioning is automatically performed, and no operator is required throughout the process, thereby reducing labor production costs and improving enterprise benefits.

[0015] Due to the adoption of the above technical features, the present invention has the following advantages and positive effects compared with the prior art:

[0016] First, the nut anti-reverse positioning device of the present application has a simple structure, and utilizes the nut shape to design a contoured conveying trough and an anti-reverse limit block to effectively prevent the occurrence of reversed nuts, thereby achieving accurate screening and handling of the forward and reverse nuts;

[0017] Second, the nut anti-reverse positioning device of the present application is automatically operated, and the reverse nut is discharged by blowing.

[0018] The structure is simple, and the discharge process can be completed without an ejector rod. No operator is required throughout the process, which reduces labor production costs and improves corporate benefits.

[0019] Of course, any specific embodiment of the present invention does not necessarily have all of the above technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the nut of this application;

[0021] Figure 2 This is a schematic diagram of the nut anti-reverse positioning device of the present application;

[0022] Figure 3 It is a schematic diagram of the nut transmission of this application;

[0023] Figure 4 It is a schematic diagram of the reverse nut transmission of this application;

[0024] Figure 5 It is a schematic diagram of the detection block of this application;

[0025] Figure 6 This is a schematic diagram of the forward and reverse nuts of this application;

[0026] Figure 7 It is a schematic diagram of the forward nut channel of this application;

[0027] Figure 8 It is a schematic diagram of the reverse nut blocking of this application;

[0028] Fig. 9 It is a schematic diagram of the positioning pin of this application. DETAILED DESCRIPTION

[0029] Several preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, processes, components, etc. are not described in detail.

[0030] Please refer to Figure 1 Schematic diagram of the nut of the present application. The nut 99 of the present application has a protrusion in the axial direction. When the protrusion is facing downward, it is a forward nut. Conversely, when the protrusion is facing upward, it is a reverse nut. We must select the reverse nuts to prevent the reverse nuts from entering the subsequent process and causing defective products.

[0031] Please refer to Figure 2 and Figure 5 The schematic diagram of the nut anti-reverse positioning device and the schematic diagram of the detection block of the present application. The nut anti-reverse positioning device of the present application is designed with a contoured conveying groove and an anti-reverse limit block according to the shape of the nut to effectively prevent the occurrence of reverse nut defects. The reverse nut is detected and automatically discharged to improve equipment utilization, improve corporate benefits, and reduce adverse risks. The nut anti-reverse positioning device of the present application includes a nut conveying device 10, a reverse nut detection device 20 and a nut lifting and positioning device 30. The reverse nut detection device 20 includes a nut channel 21, a detection block with a contoured conveying groove 22, a side cover plate 23, an anti-reverse limit block 24 and a conveying groove baffle 25. The nut channel 21 is connected to the contoured conveying groove 22. The nut enters the contoured conveying groove 22 via the nut channel 21. The two are adjacent and belong to a channel connection; the nut channel 21 is an inclined channel, such as Figure 5 As shown, the nut channel 21 of the present application is an inclined channel with a high inlet end and a low outlet end, and the nut can move to the lower end without being pushed. Figure 3 The direction of the arrow in the middle is the direction in which the nut is transmitted.

[0032] Please refer to Figure 2 , Figure 5 and Figure 7 The side cover 23 is arranged on the detection block, specifically, it is screwed to the side of the detection block. After connection, a complete nut channel 21 and a profiled conveying groove 22 are formed, and the nut will not fall off from the nut channel 21 and the profiled conveying groove 22. The part surrounded by the side cover 23 and the profiled conveying groove 22 forms an inverted convex groove, and the inverted convex groove is the profile of the nut; the anti-reverse limit block 24 is arranged on the inverted convex groove to block the reverse nut; the conveying groove baffle 25 is screwed to the outlet end face of the profiled conveying groove 22, and a conveying groove through hole 221 is opened at the outlet end of the profiled conveying groove 22 corresponding to the position of the middle through hole of the nut, and the center of the conveying groove through hole 221 is concentric with the center of the protrusion resting at the outlet end of the profiled conveying groove 22, and the center diameter of the conveying groove through hole 221 is larger than the center diameter of the protrusion.

[0033] Please refer to Figure 6 and Figure 8 , Figure 6 The middle nut moves from right to left. The nut on the left is a forward nut and flows to the next process step through the anti-reverse limit block 24, but the nut on the right is a reverse nut, and its axial protrusion is blocked by the anti-reverse limit block 24 and cannot continue to flow to the left. In this process step, the reverse nut can be blocked and screened out and will not flow to the next process to produce defective products. Figure 8When looking at the nut from the end of the contoured conveying groove 22 , the protruding portion above the reverse nut is blocked by the anti-reverse limiting block 24 .

[0034] Please refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 In the embodiments of the present application, Figure 2 The cover plate covering the contoured conveying trough 22 includes a high position limit block 241 in addition to the anti-reverse limit block 24, but this cannot be used to limit the present application. For example, the anti-reverse limit block 24 and the high position limit block 241 are designed as one limit block. As long as the anti-reverse limit function can be achieved, it should be within the protection scope of the present application. In addition, Figure 5 The locking positions of the anti-reverse limit block 24 and the high limit block 241 form a step shape. Under such a design, the nut covered by the high limit block 241 can pass through in both forward and reverse directions. Once it reaches the position of the anti-reverse limit block 24, the reverse nut is blocked, just like Figure 6 In this way, the height of the reverse nut is higher than the height of the anti-reverse limit block 24; Figure 4 In the embodiment, five nuts are arranged on the contoured conveying trough 22, and the anti-reverse limiting block 24 blocks the third nut.

[0035] Please refer to Figure 4 and Figure 5 In the embodiment of the present application, the reverse nut detection device 20 also includes a blow-out pipe 26 and a blow-out hole 27, but this cannot be used to limit the present application. For example, using a gripper, as long as the structure can take out the reverse nut, it should be within the protection scope of the present application; it should also be noted that the blow-out pipe 26 described in the present application refers to a set of air outlet devices controlled by a controller, which can deliver compressed gas; the blow-out hole 27 is an airway, and one port of the blow-out hole 27 corresponds to the nut blocking position, such as Figure 5 As shown, one end of the blow-out hole 27 is located on the right side of the cover position of the anti-reverse limit block 24, which is exactly the blocking position of the reverse nut; the other end of the blow-out hole 27 is connected to the blow-out pipe 26, and the blow-out pipe 26 is connected to the controller for blowing out the blocked reverse nut. When the controller receives the information that the reverse nut exists, it controls the blow-out pipe 26 to blow out gas, and the gas is blown out from the blow-out hole 27 to form a pressure gas path to blow out the reverse nut. Figure 4 The direction of the arrow is the direction in which the reverse nut is blown away. The present application adopts a blowing method to form a pressure gas path to discharge the reverse nut. The structure is simple and the discharge process can be completed without an ejector rod.

[0036] Please refer to Figure 3The reverse nut detection device 20 also includes a reverse nut discharge pipe 28, but it cannot be used to limit the present application. For example, a gripper is used to directly send the nut back to the nut conveying device 10. As long as the reverse nut conveying can be achieved, it should be within the protection scope of the present application. However, considering the limitation of the use environment space, the present application adopts a blowing method combined with the reverse nut discharge pipe 28 to save space and is more suitable for use in a crowded environment; the side cover plate 23 has a discharge port (not shown) corresponding to the position of the blow-out air hole 27, and the inlet of the reverse nut discharge pipe 28 is connected to the discharge port for receiving the blown reverse nuts. Although there is no schematic diagram of the discharge port in the figure, combined with Figure 5 and Figure 6 The structural feature of the discharge port can be easily inferred, that is, a gap through which the reverse nut can pass is formed at the position of the side cover plate 23 corresponding to the reverse nut, which is the discharge port.

[0037] like Figure 5 As shown, the nut channel 21 is a stepped channel, the thickness of the inlet end of the nut channel 21 is greater than the thickness of the outlet end, the inlet end of the nut channel 21 covers the outlet end connected to the nut conveying device 10, and after the outlet end of the nut conveying device 10 is inserted into the inlet end of the nut channel 21, it abuts against the step, and the thickness of the outlet end of the nut conveying device 10 fills the step, so that the connected channel becomes a smooth channel, and the nut slides downward in this smooth channel by its own weight.

[0038] Please refer to Figure 2 The anti-nut detection device 20 also includes a device fixing block 291 and a height adjustment block 292. The device fixing block 291 and the height adjustment block 292 connect the machine and the detection block. The device fixing block 291 and the height adjustment block 292 are used to fix and adjust the anti-nut detection device 20.

[0039] Please refer to Figure 4 The nut lifting and positioning device 30 includes a nut lifting and positioning cylinder 31, which is fixedly connected to the detection block through a connecting piece, and the piston rod of the nut lifting and positioning cylinder 31 is connected to a positioning pin 33, and the position of the positioning pin 33 corresponds to the position of the conveying groove through hole 221. Fig. 9As shown, the positioning pin 33 includes a cylinder 331 and a cone 332 arranged on the cylinder 331, the bottom circle area of ​​the cone 332 is smaller than the area of ​​the end face of the cylinder 331, and the positioning pin 33 is a stepped pin; the nut is conveyed to the set position according to the contoured conveying groove 22, that is, the position of the conveying groove through hole 221, and the positioning pin 33 is moved upward by the upward thrust of the piston rod of the nut lifting and positioning cylinder 31. After passing through the conveying groove through hole 221, the cone 332 is inserted into the middle hole of the nut and continues to move upward. After the end face of the cylinder 331 contacts the protrusion of the nut, the nut is moved upward to the positioning and waits for the grasping device to take the nut to the next process site; this stepped pin can ensure the balance of the nut and keep the horizontality of the nut at the positioning point.

[0040] Please refer to Figure 4 The nut lifting and positioning device 30 also includes a nut anti-mistake sensor 34, which is electrically connected to the controller. The nut anti-mistake sensor 34 is used to sense the nut on the positioning pin 33. The nut anti-mistake sensor 34 is connected to the nut lifting and positioning cylinder 31 through a fixing frame 35, but it cannot be used to limit the present application. For example, the nut anti-mistake sensor 34 is fixed on the detection block. As long as the method of sensing the nut can be achieved, it should be within the protection scope of the present application. In the embodiment of the present application, the nut anti-mistake sensor 34 senses the nut on the positioning pin 33 that has reached the positioning, and when the nut position is horizontal, the information is transmitted to The controller performs the grabbing process after receiving the information; if the nut anti-error sensor 34 cannot sense the nut on the positioning pin 33, the information that the nut does not exist is transmitted to the controller. After receiving the information, the controller sends an instruction to the blow-out air pipe 26. The blow-out air pipe 26 delivers compressed gas through the blow-out air hole 27 to blow out the reverse nut from the discharge port into the reverse nut discharge pipe 28. The reverse nut is discharged by blowing. The mechanism is simple and the discharge process can be completed without an ejector rod. If the nut anti-error sensor 34 senses that there is something wrong with the nut, such as the nut is skewed, the controller stops the operation of the device and sends an alarm to summon an operator to come and deal with it.

[0041] Please refer to Figure 3 The nut conveying device 10 includes a vibrating plate (not shown), a vibrator (not shown) and a slide 11. The main function of the nut conveying device 10 is to convey nuts in an orderly manner. The outlet end of the slide 11 is inserted into the inlet end of the nut channel 21. Under the operation of the nut conveying device 10, nuts continuously enter the nut channel 21 from the slide 11. At this time, the nuts have not been screened and both forward nuts and reverse nuts exist.

[0042] The process flow of the nut anti-reverse positioning device in this application is as follows:

[0043] 1. The nut conveying device 10 conveys the nuts neatly to the nut channel 21;

[0044] 2. The nut passes through the nut channel 21 and is screened by the anti-reverse limit block 24 in the contoured conveying groove 22;

[0045] 3. The piston rod of the nut lifting and positioning cylinder 31 extends to drive the positioning pin 33 to move upward to the position;

[0046] Fourth, the nut anti-mistake sensor 34 cannot sense the nut on the positioning pin 33, and the blow-out air pipe 26 delivers compressed gas to blow out through the blow-out air hole 27, blowing the reverse nut out from the discharge port into the reverse nut discharge pipe 28, and the reverse nut is discharged by blowing.

[0047] The mechanism is simple and the discharge process can be completed without an ejector rod.

[0048] It should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0049] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0050] In summary, due to the adoption of the above technical features, the present invention has the following advantages and positive effects compared with the prior art:

[0051] First, the nut anti-reverse positioning device of the present application has a simple structure, and utilizes the nut shape to design a contoured conveying trough and an anti-reverse limit block to effectively prevent the occurrence of reversed nuts, thereby achieving accurate screening and handling of the forward and reverse nuts;

[0052] Second, the nut anti-reverse positioning device of the present application is automatically operated, and the reverse nut is discharged by blowing.

[0053] The mechanism is simple, and the ejection process can be completed without the need for an ejector rod, and no operator is required throughout the process.

[0054] Reduce labor production costs and improve enterprise efficiency.

[0055] The preferred embodiments of the invention are only used to help illustrate the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made based on the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the invention, so that technicians in the relevant technical field can make good use of the invention. The present invention is only limited by the claims and their full scope and equivalents. The above disclosure is only the preferred embodiment of the present invention, but it is not intended to limit itself. Any equivalent changes and modifications made by any technician familiar with the art without violating the spirit and connotation of the invention should fall within the scope of protection of the present invention.

Claims

1. An efficient nut anti-reverse positioning device, characterized in that: The nut anti-reverse positioning device includes a nut conveying device, a reverse nut detection device and a nut lifting and positioning device. The reverse nut detection device includes a detection block with a nut channel and a profiled conveying groove, a side cover, an anti-reverse limit block and a conveying groove baffle. The nut channel is connected to the profiled conveying groove; the nut channel is an inclined channel; the side cover is arranged on the detection block, and the part surrounded by the side cover and the profiled conveying groove forms an inverted convex groove, which is the profile of the nut; the anti-reverse limit block is arranged on the inverted convex groove to block the reverse nut; the conveying groove baffle is locked to the outlet end face of the profiled conveying groove by a screw, and a conveying groove through hole is arranged at the outlet end of the profiled conveying groove corresponding to the position of the middle through hole of the nut.

2. The efficient nut anti-reverse positioning device according to claim 1 is characterized in that: The reverse nut detection device also includes a blow-out air pipe and a blow-out air hole, one end of the blow-out air hole corresponds to the nut blocking position; the other end of the blow-out air hole is connected to the blow-out air pipe.

3. The efficient nut anti-reverse positioning device according to claim 2 is characterized in that: The reverse nut detection device also includes a reverse nut discharge pipe. The side cover plate has a discharge port corresponding to the position of the blow-out hole. The inlet of the reverse nut discharge pipe is connected to the discharge port for receiving the blown reverse nut.

4. The efficient nut anti-reverse positioning device as claimed in claim 3 is characterized in that: The nut channel is a stepped channel, the thickness of the inlet end of the nut channel is greater than the thickness of the outlet end, and the inlet end of the nut channel covers the outlet end connected to the nut conveying device.

5. The efficient nut anti-reverse positioning device according to claim 4, characterized in that: The reverse nut detection device also includes a device fixing block and a height adjustment block, and the device fixing block and the height adjustment block are used to fix and adjust the reverse nut detection device.

6. The efficient nut anti-reverse positioning device according to claim 5, characterized in that: The nut lifting and positioning device includes a nut lifting and positioning cylinder, the piston rod of the nut lifting and positioning cylinder is connected to a positioning pin, the position of the positioning pin corresponds to the position of the conveying groove through hole, the positioning pin includes a cylinder and a cone arranged on the cylinder, and the bottom circle area of ​​the cone is smaller than the area of ​​the end face of the cylinder.

7. The efficient nut anti-reverse positioning device according to claim 6, characterized in that: The nut lifting and positioning device also includes a nut anti-mistake sensor, which is used to sense the nut on the positioning pin.

8. The efficient nut anti-reverse positioning device according to claim 7, characterized in that: The nut conveying device comprises a vibrating plate, a vibration leveler and a slideway, wherein the outlet end of the slideway is inserted into and connected to the inlet end of the nut channel.

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