Screw screwing detection device

Abstract

The utility model discloses a screw screwing detection device, which relates to the technical field of detection, and adopts the technical scheme that the screw screwing detection device comprises a pushing unit which is provided with a pushing channel and can push a workpiece to be processed; the detection unit is arranged at one end of the pushing channel of the pushing unit and can receive the workpieces pushed by the pushing unit; the detection unit is provided with a detection hole corresponding to an unthreaded hole of the workpiece, and the unthreaded hole is coaxially aligned with the detection hole; a detection assembly capable of feeding back the screwing length of the screw is arranged at the detection hole; and the screwing unit is arranged on one side of the detection unit and comprises a screwing head capable of bearing and screwing the screw, and the screwing head is arranged towards the detection hole of the detection unit. The device has the beneficial effects that the operation of screwing a screw at the position of an aluminum alloy unthreaded hole can be completed, and the detection unit is used for detecting and feeding back the extending part of the screw after penetrating through an aluminum alloy profile. Therefore, accurate control over connection of the screw and the unthreaded hole is achieved, and a foundation is laid for further improvement of subsequent product machining quality.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a screw twisting detection device. Background Art

[0002] In the processing of aluminum alloy products, using screws for fastening is one of the conventional processing methods. In order to facilitate the subsequent production of aluminum alloy profiles, it is necessary to first drill a base hole, also called a light hole, at the reserved screw hole position.

[0003] The processing of light holes also has specific process requirements. For example, when a self-tapping screw is screwed into the light hole of an aluminum alloy profile, a certain amount of extension is reserved after the screw head passes through the light hole. For example, after the self-tapping screw is screwed in, the length of the screw head extending is 0.4-0.5mm. The tolerance range of this extension is very small, and the working and detection methods of conventional screw locking machines cannot meet the processing requirements. Utility Model Content

[0004] In view of one of the deficiencies of the prior art, the utility model provides a screw tightening detection device to solve the problem of screw tightening at the light hole of aluminum alloy profile.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a screw tightening detection device, comprising:

[0006] A pushing unit is provided with a pushing channel for pushing the workpiece to be processed;

[0007] The detection unit is arranged at one end of the pushing channel of the pushing unit, and can receive the workpiece pushed by the pushing unit; the detection unit is provided with a detection hole corresponding to the light hole of the workpiece, and when the workpiece is pushed to the detection unit, the light hole and the detection hole are coaxially aligned; a detection component capable of feedback of the screwing length is arranged at the detection hole;

[0008] The screwing unit is arranged at one side of the detection unit and comprises a screwing head which can receive and screw the screw, and the screwing head is arranged toward the detection hole of the detection unit.

[0009] Preferably, the pushing channel of the pushing unit includes:

[0010] The feed channel is a straight channel, and the feed end of the feed channel is the workpiece entry end of the detection device;

[0011] A feeding channel is arranged at the discharge end of the feeding channel, and the discharge end of the feeding channel corresponds to the feeding end of the detection unit;

[0012] The axes of the feed channel and the delivery channel are perpendicular.

[0013] Preferably, the feeding channel comprises:

[0014] A feeding slide rail is fixedly arranged on the table of the device, and the feeding slide rail extends to the feeding end of the detection unit;

[0015] The feeding slide seat has a lower part that is slidably connected to the feeding slide rail, and a groove corresponding to the workpiece is reserved on the upper part;

[0016] The feeding drive member can drive the feeding slide to slide along the feeding slide rail.

[0017] Preferably, the detection unit comprises:

[0018] A detection platform, on which a detection position corresponding to the workpiece is arranged, and the detection hole is arranged on the detection platform;

[0019] The detection pushing member is arranged on one side of the detection platform, and can send the workpiece pushed by the pushing unit onto the detection platform.

[0020] Preferably, the detection platform comprises:

[0021] A positioning member is provided with a limiting structure corresponding to the workpiece, the limiting structure forms a space through which the workpiece can pass, the passing direction of the workpiece is consistent with the pushing direction of the detection pushing member, and the workpiece is limited on the upper and lower and lateral sides of the pushing direction; the detection hole is provided on the positioning member; when the workpiece is pushed into the positioning member, the detection hole is located at the lower side of the light hole of the workpiece.

[0022] Preferably, the detection platform further comprises:

[0023] A feedback member is movably connected to the positioning member, one end of the feedback member is a sensing end, and the other end is a feedback end; the sensing end extends to the position of the detection hole in the positioning member;

[0024] The sensing element is a sensor, which is arranged corresponding to the feedback end of the feedback element and can convert the feedback result of the feedback element into an electrical signal for transmission.

[0025] Preferably, the feedback member is a rod, the feedback member is hinged to the positioning member, one end of the feedback member extends to below the detection hole, and the other end extends to the sensor member;

[0026] The detection platform also includes:

[0027] The guide column is arranged inside the detection hole and is slidably connected with the detection hole.

[0028] Preferably, the screwing unit further comprises:

[0029] The screwing driving member is connected to the screwing head through a coupling and can drive the screwing head to rotate.

[0030] Preferably, the screwing unit further comprises:

[0031] The displacement driving member is connected to the screw driving member and can drive the screw driving member and the screwing head to reciprocate. The driving direction of the screwing head by the displacement driving member is parallel to the axial direction of the detection hole.

[0032] Preferably, a cavity is provided inside the screwing head for the screw to pass through, and the cavity is connected to an external screw feeding pipe.

[0033] Compared with the prior art, the device has the following beneficial effects: the device can complete the operation of screwing the screw at the position of the aluminum alloy light hole, and the detection unit can detect and feedback the part of the screw that protrudes after passing through the aluminum alloy profile. This can achieve precise control of the connection between the screw and the light hole, laying a foundation for further improvement of the subsequent product processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0035] Figure 2 for Figure 1 A partial enlarged view of;

[0036] Figure 3 for Figure 2 A partial enlarged view of B.

[0037] In the figure:

[0038] 100. Workpiece;

[0039] 1. Pushing unit; 11. Feeding channel; 12. Feeding channel; 121. Feeding slide rail; 122. Feeding slide seat; 123. Feeding driving member;

[0040] 2. Detection unit; 21. Detection platform; 22. Detection pusher; 211. Positioning member; 212. Feedback member; 213. Sensor;

[0041] 3. Screwing unit; 31. Screwing head; 32. Screwing drive; 33. Displacement drive; 34. Screwing frame. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] See also Figure 1 , this application provides the following technical solutions:

[0044] A screw tightening detection device includes a pushing unit 1, a detection unit 2 and a tightening unit 3. The pushing unit 1 includes a pushing channel, through which a workpiece 100 to be processed can be pushed to the detection unit 2. The detection unit 2 is arranged at one end of the pushing channel of the pushing unit 1, and receives the workpiece 100 pushed by the pushing unit 1 and performs detection. The detection unit 2 is provided with a detection hole corresponding to the light hole of the workpiece 100. When the workpiece 100 is pushed to the detection unit 2, the light hole is coaxially aligned with the detection hole; a detection component that can feedback the screw tightening length is arranged at the detection hole. The tightening unit 3 is arranged on one side of the detection unit 2, and includes a tightening head 31 that can receive and tighten the screw, and the tightening head 31 is arranged toward the detection hole of the detection unit 2.

[0045] The screw is tightened at the light hole position of the workpiece 100 by the screwing unit 3, and then the length of the portion of the bolt extending out of the workpiece 100 after the bolt is tightened is detected by the detection unit 2, and the detection result is fed back to the screwing unit for adjustment and control, so as to obtain the screw tightening effect of the light hole position of the aluminum alloy profile that meets the requirements.

[0046] Based on the above implementation scheme, see Figure 2 , the pushing channel of the pushing unit 1 includes a feed channel 11 and a feeding channel 12. The feed channel 11 is a straight channel, and the whole is a structure with a long rectangular cavity, wherein the long rectangular cavity is the straight channel through which the workpiece 100 can pass, and the feed end of the feed channel 11 is the entry end of the workpiece 100 of the detection device. The feeding channel 12 is arranged at the discharge end of the feed channel 11, and the discharge end of the feed channel 12 corresponds to the feed end of the detection unit 2. The axes of the feed channel 11 and the feeding channel 12 are perpendicular. The specific conveying method of the feed channel 11 for the workpiece 100 can select the existing technology, combined with electric methods such as cylinders and electric push rods, or manual pushing, which will not be repeated here.

[0047] The feeding channel 12 includes a feeding slide 121, a feeding slide seat 122 and a feeding drive 123. The feeding slide 121 is fixedly arranged on the table of the device, and the feeding slide 121 extends to the feeding end of the detection unit 2; the lower part of the feeding slide seat 122 is slidably connected to the feeding slide 121, and the upper part is reserved with a groove for placing the workpiece 100; the feeding drive 123 can drive the feeding slide seat 122 to slide along the feeding slide 121.

[0048] The feeding drive 123 is a cylinder, and the feeding slide 122 reciprocates along the feeding slide rail 121 driven by the feeding drive 123. In other words, the feeding slide 122 reciprocates between the discharge end of the feeding channel 11 and the feeding end of the detection unit 2.

[0049] The groove on the feeding slide 122 is a through-groove structure, and its through-direction is parallel to the conveying direction of the feed channel 11 to the workpiece 100. It should be noted that in order to ensure that the feed channel 11 conveys the workpiece 100 accurately, a limit baffle can be set at the outlet end of the feed channel 11, and a gap is reserved between the limit baffle and the outlet end of the feed channel 11, and the gap is sufficient for the feeding slide 122 to pass through. When the feeding slide 122 is located at the outlet end of the feed channel 11, the workpiece 100 is pushed from the feed channel 11 to the feeding slide 122 until its end abuts against the limit baffle. Through this structural form, the accurate position of the workpiece 100 on the feeding slide 122 can be ensured.

[0050] On the basis of the above implementation scheme, the detection unit 2 includes a detection platform 21 and a detection pusher 22. The detection platform 21 is the aforementioned detection component, on which a detection position corresponding to the workpiece 100 is arranged, and the detection hole is arranged on the detection platform 21. The detection pusher 22 is arranged on one side of the detection platform 21, and the workpiece 100 pushed by the feeding channel 12 can be fed onto the detection platform 21.

[0051] The detection pusher 22 can also be a cylinder. When the feeding drive 123 pushes the feeding slide 122 to the side of the detection pusher 22, the detection pusher 22 moves to push the workpiece 100 on the feeding slide 122 onto the detection platform 21. On the table of the device, a through hole is opened on the side of the detection platform 21 away from the detection pusher 22. When the detection is completed, the detection pusher 22 continues to push the next workpiece 100, and the processed workpiece 100 falls through the through hole on the table to wait for subsequent processing.

[0052] Based on the above implementation scheme, see Figure 3 The detection platform 21 includes a positioning member 211. The positioning member 211 is a block structure. A limiting structure is set on the block corresponding to the workpiece 100. The limiting structure forms a space through which the workpiece 100 can pass. The space includes a groove opened on the block and a "7"-shaped baffle set on both sides of the groove. The passing direction of the workpiece 100 on the positioning member 211 is consistent with the pushing direction of the detection push member 22, and the workpiece 100 is limited in the upper and lower and lateral sides of the pushing direction; the detection hole is set on the positioning member 211; when the workpiece 100 is pushed into the positioning member 211, the detection hole is located at the lower side of the light hole of the workpiece 100.

[0053] On the basis of the above implementation scheme, the detection platform 21 further includes a feedback member 212 and a sensor member 213. The feedback member 212 is movably connected to the positioning member 211, one end of the feedback member 212 is a sensing end, and the other end is a feedback end; the sensing end extends to the detection hole position in the positioning member 211; the feedback member 212 is a rod body, the feedback member 212 is hinged to the positioning member 211, one end of the feedback member extends to the bottom of the detection hole, and the other end extends to the sensor member 213; a guide column is provided inside the detection hole, and the guide column is slidably connected to the detection hole.

[0054] Through this structure, when the screw is screwed into the light hole and passes through the workpiece 100, the lower end of the screw abuts against the guide post, and the guide post moves downward in the detection hole, thereby driving the detection end of the feedback member 212 to move downward, while the other end, that is, the end close to the sensor 213, moves upward. Then, the result of the feedback member 212 can be fed back with the help of the sensor 213. Considering the reset of the guide post and the feedback member 212, two forms can be adopted. One is that the rod body of the feedback member 212 itself located outside the detection platform 211 is longer, and the guide post and the internal rod body are driven to reset by relying on the deadweight of the external rod body. Another way is to set a reset spring on the lower side of the rod body of the feedback member 212 located inside the detection platform 211.

[0055] The sensing element 213 is a sensor, which is arranged corresponding to the feedback end of the feedback element 212, and can convert the feedback result of the feedback element 212 into an electrical signal for transmission. The sensing element 213 is a displacement sensor, which only needs to be able to detect the moving distance of the end of the feedback element 212. The specific sensor selection can be selected by the staff in this field, and will not be repeated here.

[0056] On the basis of the above implementation scheme, the screwing unit 3 and the screwing head 31 are connected to the screwing drive 32 through a coupling. The screwing drive 32 is a motor, which can drive the screwing head 31 to rotate through the coupling. A displacement drive 33 is provided in connection with the screwing drive 32. The displacement drive 33 can be an electric push rod or a cylinder. The displacement drive 33 drives the screwing drive 32 and the screwing head 31 to reciprocate in the vertical direction. The driving direction of the screwing head 31 by the displacement drive 33 is parallel to the axial direction of the detection hole. The screwing unit 3 also includes a screwing frame 34 arranged on the table of the device. The cylinder part of the displacement drive 33 is fixed on the screwing frame 34. A movable frame that can slide in the vertical direction is provided on the screwing frame 34. The screwing drive 32 and the screwing head 31 are connected to the movable frame.

[0057] Based on the above implementation scheme, see Figure 2 A cavity is provided inside the screwing head 31 for the screw to pass through, and the cavity is connected to an external screw feeding pipe. Figure 2Only the part where the pipeline enters the screwing diagram is retained, and the rest is omitted. The supply of screws can be adapted and combined with existing technologies, such as adjusting the direction of the screws through a vibrating screen, feeding the screws through an air path structure, etc., which will not be repeated here.

[0058] On the basis of the above implementation scheme, the following process method can be adopted when conducting detection.

[0059] The workpiece 100 is pushed to the detection platform 21, and the screwing unit 3 is started. The screw is screwed into the light hole at a normal speed. The screw head extends out of the light hole and hits the guide column. The guide column contacts the feedback component 212 and amplifies the effect through the lever. The sensor 213 is used to detect the stroke at the other end. When the screw is exposed by 0.3mm, the sensor 213 sends a signal to control the screw-in speed to decrease. When the screw is exposed by 0.4, the screwing drive 32 is controlled to drive the screw to rotate 20 degrees and stop. At this time, the sensor 213 detects the position of the feedback component 212 again and compares it with the set value to see if it is qualified.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A screw tightening detection device, characterized in that: include: A pushing unit (1) is provided with a pushing channel and can push a workpiece (100) to be processed; The detection unit (2) is arranged at one end of the pushing channel of the pushing unit (1) and can receive the workpiece (100) pushed by the pushing unit (1); the detection unit (2) is provided with a detection hole corresponding to the light hole of the workpiece (100); when the workpiece (100) is pushed to the detection unit (2), the light hole and the detection hole are coaxially aligned; a detection component capable of feeding back the screwing length of the screw is arranged at the detection hole; A screwing unit (3) is arranged on one side of the detection unit (2), and comprises a screwing head (31) capable of receiving and screwing a screw, wherein the screwing head (31) is arranged toward the detection hole of the detection unit (2); The pushing channel of the pushing unit (1) comprises: The feed channel (11) is a straight channel, and the feed end of the feed channel (11) is the entry end of the workpiece (100) of the detection device; A feeding channel (12) is arranged at the discharge end of the feeding channel (11), and the discharge end of the feeding channel (12) corresponds to the feeding end of the detection unit (2); The axes of the feed channel (11) and the delivery channel (12) are perpendicular; The detection unit (2) comprises: A detection platform (21) is provided with a detection position corresponding to the workpiece (100), and the detection hole is provided on the detection platform (21); The detection pushing member (22) is arranged on one side of the detection platform (21) and can push the workpiece (100) pushed by the pushing unit (1) onto the detection platform (21).

2. The screw tightening detection device according to claim 1, characterized in that: The feeding channel (12) comprises: A feeding slide rail (121) is fixedly arranged on the table of the device, and the feeding slide rail (121) extends to the feeding end of the detection unit (2); A feeding slide seat (122), the lower part of which is slidably connected to the feeding slide rail (121), and the upper part of which is reserved with a groove corresponding to the workpiece (100); The feeding drive member (123) can drive the feeding slide seat (122) to slide along the feeding slide rail (121).

3. The screw tightening detection device according to claim 2, characterized in that: The detection platform (21) comprises: A positioning member (211) is provided with a limiting structure corresponding to the workpiece (100), the limiting structure forming a space through which the workpiece (100) can pass, the passing direction of the workpiece (100) is consistent with the pushing direction of the detection pushing member (22), and the workpiece (100) is limited at the upper and lower sides and the lateral sides of the pushing direction; the detection hole is provided on the positioning member (211); when the workpiece (100) is pushed into the positioning member (211), the detection hole is located at the lower side of the light hole of the workpiece (100).

4. The screw tightening detection device according to claim 3, characterized in that: The detection platform (21) also includes: A feedback member (212) is movably connected to the positioning member (211); one end of the feedback member (212) is a sensing end, and the other end is a feedback end; the sensing end extends to the position of the detection hole in the positioning member (211); The sensing element (213) is a sensor, which is arranged corresponding to the feedback end of the feedback element (212) and can convert the feedback result of the feedback element (212) into an electrical signal for transmission.

5. The screw tightening detection device according to claim 4, characterized in that: The feedback member (212) is a rod, the feedback member (212) is hinged to the positioning member (211), one end of the feedback member extends to below the detection hole, and the other end extends to the sensor member (213); The detection platform (21) also includes: The guide column is arranged inside the detection hole and is slidably connected with the detection hole.

6. The screw tightening detection device according to claim 1, characterized in that: The screwing unit (3) further comprises: The screwing driving member (32) is connected to the screwing head (31) via a coupling and can drive the screwing head (31) to rotate.

7. The screw tightening detection device according to claim 6, characterized in that: The screwing unit (3) further comprises: The displacement driving member (33) is connected to the screwing driving member (32) and can drive the screwing driving member (32) and the screwing head (31) to reciprocate. The driving direction of the screwing head (31) by the displacement driving member (33) is parallel to the axial direction of the detection hole.

8. The screw tightening detection device according to any one of claims 1 to 7, characterized in that: The screwing head (31) is provided with a cavity inside for the screw to pass through, and the cavity is communicated with an external screw feeding pipe.

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