Locking mechanism and screw locking machine

Abstract

The invention discloses a locking mechanism and a screw locking machine, and relates to the technical field of screw locking, and the locking mechanism comprises a base plate, a locking assembly, a storage disc and a storage driving assembly. Wherein the locking assembly is arranged on the base plate and used for sucking screws and placing the screws into workpieces to lock the screws, the storage disc is movably arranged below the locking assembly and used for storing a plurality of screws, the storage driving assembly is connected with the base plate and the storage disc, and the storage driving assembly is used for driving the storage disc to move relative to the base plate. And thus, the screws on the storage disc sequentially move to the position below the locking assembly. According to the locking mechanism, the screw locking technological process is simplified, and the screw locking efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of screw locking, and in particular to a locking mechanism and a screw locking machine. Background Art

[0002] The screw locking machine is an automated device that can complete a large number of screw locking tasks in a short period of time. The use of a screw locking machine can greatly improve the efficiency and accuracy of screw assembly.

[0003] At present, common screw locking machines mainly include a feeding mechanism and a locking mechanism. Among them, the feeding mechanism is used to supply screws to the locking mechanism so that the locking mechanism can lock and fix the screws. However, the feeding mechanism and the locking mechanism currently used are designed separately. Each time the screw is locked, it is necessary to first control the screwdriver bit of the locking mechanism to run to the feeding mechanism to load the material, and then control the locking mechanism to run to the locking position to lock and fix the screw. Since each locking operation requires material removal, and the locking mechanism has a long material removal stroke, resulting in a long locking time, it is bound to affect the efficiency of screw locking. Summary of the invention

[0004] The purpose of the present application is to provide a locking mechanism and a screw locking machine, which solves the problem of low work efficiency caused by the need to reciprocate material extraction during the process of locking screws.

[0005] To achieve the above purpose, the present application provides a locking mechanism, comprising:

[0006] substrate;

[0007] A locking component is provided on the base plate and is used to absorb the screw and place the screw into the workpiece to lock the screw;

[0008] A storage tray is movably disposed below the locking assembly and is used to store a plurality of screws;

[0009] The material storage drive assembly is connected to the base plate and the material storage tray, and is used to drive the material storage tray to move relative to the base plate, so that the screws on the material storage tray move to the bottom of the locking assembly in sequence.

[0010] In some embodiments, the storage tray comprises:

[0011] A connecting portion connected to the material storage drive assembly;

[0012] The material storage portion is located at the periphery of the connecting portion, and the material storage portion includes a plurality of material storage stations distributed along the circumferential direction, and the material storage stations are used to store screws.

[0013] In some embodiments, an avoidance groove is provided between any two adjacent material storage stations, and the avoidance groove is used to provide an avoidance space when the locking assembly locks the screws.

[0014] In some embodiments, the material storage tray is a circular disc body, each of the material storage stations is arranged at an edge of the circular disc body at equal intervals along the circumferential direction, and the connecting portion is arranged at the center of the circular disc body.

[0015] In some embodiments, the storage drive assembly includes:

[0016] A rotating driving member connected to the connecting portion and used to drive the material storage tray to rotate so as to switch between different material storage positions;

[0017] A lifting drive member is installed on the base plate and connected to the rotating drive member, and is used to drive the rotating drive member and the material storage part to move in a direction close to or away from the locking component, so that the screws on the material storage station are placed on the suction station below the locking component.

[0018] In some embodiments, the locking assembly includes:

[0019] A suction nozzle, arranged toward the corresponding material storage station, so as to suck the screws in the corresponding material storage station;

[0020] A locking drive member and a locking head, wherein the locking head is mounted on the locking drive member, the locking drive member is movably connected to the base plate, the locking drive member is used to move along the axial direction of the suction nozzle, and is used to drive the locking head to rotate to lock the screw.

[0021] In some embodiments, a guide rail is disposed on the base plate, and the locking drive member is connected to a guide block, and the guide block is slidably matched with the guide rail to guide the movement of the locking drive member relative to the base plate.

[0022] In some embodiments, the locking assembly further includes a driving cylinder, which is disposed on the base plate and connected to the locking driving member to drive the locking driving member to move along the axial direction of the suction nozzle.

[0023] In some embodiments, the locking mechanism further includes a detection component, which is used to detect the position of the screw on the workpiece to determine whether the screw is locked in place.

[0024] The present application also provides a screw locking machine, comprising any of the locking mechanisms described above.

[0025] Compared with the above background technology, the locking mechanism provided in the embodiment of the present application includes a base plate, a locking assembly, a material storage tray and a material storage drive assembly. Among them, the locking assembly is arranged on the base plate, the locking assembly is used to absorb screws and place the screws into the workpiece to lock the screws, the material storage tray can be movably arranged below the locking assembly, the material storage tray is used to store a plurality of screws, the material storage drive assembly is connected to the base plate and the material storage tray, and the material storage drive assembly is used to drive the material storage tray to move relative to the base plate so that the screws on the material storage tray move to the bottom of the locking assembly in sequence.

[0026] During operation, first, a certain number of screws are stored in the storage tray. After the storage tray is full, the locking assembly is moved above the workpiece mounting hole. Then, the storage tray is driven to move by the storage drive assembly to place the screws on the storage tray in the suction station under the locking assembly. Finally, the screws are sucked by the locking assembly and placed into the workpiece to achieve the purpose of locking the screws.

[0027] The locking mechanism thus arranged has the following beneficial effects: in the locking mechanism provided in the present application, the locking component is integrated with the material storage tray and the material storage drive component, and the screws to be locked are stored in the material storage tray in advance. When the screws are locked, the locking component directly takes the materials from the material storage tray, thereby eliminating the need to perform the material taking operation each time the screws are locked. With the above-mentioned arrangement, the materials can be taken only after all the screws on the material storage tray are locked, which simplifies the process flow of screw locking and improves the efficiency of screw locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0029] Figure 1 It is a structural schematic diagram of the locking mechanism in the embodiment of the present application.

[0030] in:

[0031] 10-Substrate;

[0032] 20-locking assembly, 21-sucking nozzle, 22-locking driving member, 23-locking head, 24-driving cylinder;

[0033] 30-storage tray, 31-connecting part, 32-storage part, 321-storage station, 322-avoidance groove;

[0034] 40 - material storage drive assembly, 41 - rotation drive component, 42 - lifting drive component. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application 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 present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] It should be noted that the directional words such as "upper end, lower end, left side, right side" described below are all defined based on the drawings in the specification.

[0038] Please refer to Figure 1 , Figure 1 It is a structural schematic diagram of the locking mechanism in the embodiment of the present application.

[0039] The locking mechanism provided in the embodiment of the present application includes a base plate 10 , a locking assembly 20 , a material storage tray 30 and a material storage drive assembly 40 .

[0040] The base plate 10 serves as a carrier of the locking mechanism and is used to install the locking assembly 20 , the material storage tray 30 and the material storage driving assembly 40 .

[0041] The locking assembly 20 is arranged on the base plate 10, and is used to absorb the screw and place the screw into the workpiece to lock the screw. The workpiece is provided with a threaded mounting hole adapted to the screw to be locked, and the locking assembly 20 provides power to screw the screw into the threaded mounting hole corresponding to the workpiece.

[0042] The storage tray 30 is movably disposed below the locking assembly 20, and is used to store a plurality of screws. The storage tray 30 may be a circular storage tray, and the screws on the storage tray 30 may be arranged in a circumferential direction so that the screws on the storage tray 30 are sequentially absorbed as the storage tray 30 rotates.

[0043] The material storage drive assembly 40 is connected to the base plate 10 and the material storage tray 30, and the material storage drive assembly 40 is used to drive the material storage tray 30 to move relative to the base plate 10, so that the screws on the material storage tray 30 move to the bottom of the locking assembly 20 in sequence. The material storage drive assembly 40 may include a combination structure of a rotating drive member 41 and a lifting drive member 42, or may be a manipulator structure, which can realize the rotation, lifting and swinging of the material storage tray 30, so that the screws on the material storage tray 30 move to the bottom of the locking assembly 20 in sequence.

[0044] When the locking mechanism is working, first, a certain number of screws are stored through the storage tray 30. After the storage tray 30 is full, the locking component 20 is moved to the top of the workpiece mounting hole. Then, the storage tray 30 is driven to move by the storage drive component 40 to place the screws on the storage tray 30 at the suction station below the locking component 20. Finally, the screws are sucked by the locking component 20 and placed into the workpiece to achieve the purpose of locking the screws.

[0045] In the locking mechanism provided by the present application, the locking assembly 20 is integrated with the storage tray 30 and the storage drive assembly 40. The screws to be locked are stored in the storage tray 30 in advance. When the screws are locked, the locking assembly 20 directly takes the material from the storage tray 30, so there is no need to perform the material taking operation every time the screws are locked. With the above setting method, the material is taken only after all the screws on the storage tray 30 are locked, which simplifies the process of screw locking and improves the efficiency of screw locking. In addition, the locking mechanism provided by the present application can be applied to various screws, has no length-to-diameter ratio restrictions on the screws, and has a wider range of applications.

[0046] In some embodiments, the material storage tray 30 includes a connecting portion 31 and a material storage portion 32, wherein the connecting portion 31 is connected to the material storage drive assembly 40, the material storage portion 32 is located outside the connecting portion 31, and the material storage portion 32 includes a plurality of material storage stations 321 distributed along the circumferential direction, and the material storage stations 321 are used to store screws.

[0047] It can be seen that when taking materials, the storage tray 30 is transported to the feeding position of the feeding mechanism, and the storage process of the storage tray 30 can be completed by filling the screws in each storage station 321 distributed along the circumferential direction on the storage tray 30.

[0048] In order to provide an escape space when the locking assembly 20 is fastening screws, an escape groove 322 is provided between any two adjacent material storage stations 321 , and the escape groove 322 is used to provide an escape space when the locking assembly 20 is fastening screws.

[0049] Specifically, the number of the material storage stations 321 on the material storage tray 30 can be set to N (the range of N is 15-25), and the number of the corresponding avoidance grooves 322 is also set to N, and all the material storage stations 321 and avoidance grooves 322 are evenly distributed in the circumferential direction of the material storage tray 30. After the screws on the corresponding material storage stations 321 are sucked by the locking assembly 20, the material storage drive assembly 40 can be used to rotate the material storage tray 30 by a preset angle, so that the avoidance grooves 322 adjacent to the material storage stations 321 on the material storage tray 30 that are taken are facing the locking assembly 20. In this way, it is possible to provide avoidance space when the locking assembly 20 is locking the screws, solving the problem that the normal locking of the screws is affected by the existence of the material storage tray 30.

[0050] In some embodiments, after the screws on the corresponding material storage station 321 are sucked by the locking component 20, the material storage tray 30 can also be taken away by the material storage driving component 40 to provide an escape space when the locking component 20 locks the screws.

[0051] Of course, according to actual needs, the material storage tray 30 is a disc body, each material storage station 321 is arranged at an edge of the disc body at equal intervals along the circumferential direction, and the connecting portion 31 is arranged at the center of the disc body. After the material storage drive assembly 40 is connected to the connecting portion 31, the power of the material storage drive assembly 40 can be transmitted to the connecting portion 31 to drive the movement of the material storage portion 32.

[0052] In some embodiments, the material storage drive assembly 40 includes a rotary drive member 41 and a lifting drive member 42. The rotary drive member 41 is connected to the connecting portion 31, and is used to drive the material storage tray 30 to rotate to switch different material storage stations 321; the lifting drive member 42 is installed on the base plate 10 and connected to the rotary drive member 41, and is used to drive the rotary drive member 41 and the material storage portion 32 to move in a direction close to or away from the locking assembly 20, so that the screws on the material storage station 321 are placed in the suction station below the locking assembly 20.

[0053] The rotating drive member 41 can be a servo motor, and the main shaft of the servo motor is connected to the center position of the connecting part 31. The servo motor provides rotational power to rotate the storage tray 30 along its axial direction. For example, 20 storage stations 321 can be set on the storage tray 30. In this way, the servo motor can switch to another storage station 321 every time it drives the storage tray 30 to rotate 18 degrees.

[0054] The lifting drive component 42 can be a lifting cylinder, the cylinder body of the lifting cylinder is installed on the base plate 10, the end of the telescopic rod of the lifting cylinder is connected to the servo motor, and the lifting cylinder is used to drive the servo motor and the storage tray 30 to perform lifting and lowering movements so that the screws on the storage tray 30 can be transferred to a height that can be absorbed by the locking component 20.

[0055] In some embodiments, the locking assembly 20 includes a suction nozzle 21, a locking drive 22, and a locking head 23. The suction nozzle 21 is used to be arranged toward the corresponding material storage station 321 to suck the screws in the corresponding material storage station 321, and the locking head 23 is installed on the locking drive 22, which is movably connected to the substrate 10, and the locking drive 22 is used to move along the axis direction of the suction nozzle 21, and is used to drive the locking head 23 to rotate to lock the screws.

[0056] It should be noted that the locking drive 22 is specifically an electric screwdriver or an electric screwdriver, and the locking head 23 is specifically an electric screwdriver head, which can be inserted into the suction nozzle 21 and extended downward from the suction nozzle 21 to screw the screw sucked by the suction nozzle 21 into the workpiece to realize the locking function of the screw.

[0057] In addition, the suction nozzle 21 is specifically a tube body with an adsorption function, and the tube body is connected to a vacuum component, and the vacuum component is used to form a negative pressure in the tube body, thereby achieving the purpose of adsorbing the screw. Of course, the suction nozzle 21 can be fixed on a buffer structure, and the buffer structure has a certain buffering effect on the suction nozzle 21, so that the suction nozzle 21 can be displaced relative to the electric screwdriver head when the electric screwdriver head is inserted, thereby improving the service life of the suction nozzle 21.

[0058] The suction nozzle 21, the locking head 23 and the locking drive 22 are coaxially arranged. When the locking drive 22 moves relative to the base plate 10, the electric screwdriver head can extend into the suction nozzle 21 and extend downward from the suction nozzle 21. In addition, the locking drive 22 can set the torque value required for locking the screw according to the actual locking needs. The torque value provided by the locking drive 22 can lock the corresponding screw into the corresponding mounting hole of the workpiece.

[0059] In order to facilitate the guidance of the movement of the locking drive member 22 relative to the base plate 10, a guide rail is provided on the base plate 10, and the locking drive member 22 is connected to a guide block, which slides with the guide rail. In this way, the movement of the locking drive member 22 relative to the base plate 10 can be guided, thereby ensuring the stability and reliability of the screw locking process.

[0060] In some embodiments, the locking assembly 20 also includes a driving cylinder 24, which is disposed on the substrate 10 and connected to the locking drive 22. The driving cylinder 24 is used to provide lifting power to drive the locking drive 22 to move along the axial direction of the suction nozzle 21.

[0061] In order to facilitate the determination of whether the screw is locked in place, the locking mechanism further includes a detection component, which is used to detect the position of the screw on the workpiece to determine whether the screw is locked in place. The detection component can be installed on the storage tray 30, specifically, it can be installed on the connection part close to the storage part, or the detection component is installed on the suction nozzle 21.

[0062] Moreover, the locking mechanism also includes a control component, which is communicatively connected with the detection component, the locking drive 22 and the driving cylinder 24. The detection component is used to detect the position of the screw on the workpiece and transmit the position information of the screw to the control component so that the control component can determine whether the screw is locked in place.

[0063] In some embodiments, the detection component can be a height sensor, which is used to detect the relative height between a screw on a workpiece and a point on the edge of a mounting hole on the workpiece for installing the screw. The height sensor is also used to transmit the collected height signal to the control component, which determines whether the screw is locked in place.

[0064] In some embodiments, the detection component can also be a visual camera, which is used to take pictures of the screws on the workpiece and transmit the image information to the control component. After the control component processes the image, it obtains the relative position information of the screws on the workpiece and the workpiece body, and determines whether the screws are locked in place.

[0065] After determining that the screw is locked in place, the control component can send a stop command to the locking drive member 22 and the driving cylinder 24, thereby stopping the locking action.

[0066] In summary, the specific working process of the locking mechanism provided in this application may include:

[0067] a. The locking mechanism moves to the screw feeder;

[0068] b. The screw feeder places the screws on the storage station 321 on the storage tray 30;

[0069] c. After the storage tray 30 is filled with screws, the locking mechanism moves to above the workpiece mounting hole;

[0070] d. The material storage tray 30 is driven to rotate by the rotating driving member 41 to place the corresponding material storage station 321 on the material storage tray 30 below the suction nozzle 21;

[0071] e. The lifting drive member 42 drives the material storage tray 30 to move upward and downward, so as to transfer the corresponding screws on the material storage tray 30 to a height where they can be sucked by the suction nozzle 21, and the suction nozzle 21 sucks the screws;

[0072] f. The material storage tray 30 is driven to rotate by an angle by the rotating driving member 41 so that the corresponding avoidance groove 322 on the material storage tray 30 faces the suction nozzle 21;

[0073] g. The locking driving member 22 and the locking head 23 are driven by the driving cylinder 24 to lock the screws, and the locking driving member 22 locks the screws according to the torque value;

[0074] h. After the locking is completed, the locking drive member 22 returns to its original position;

[0075] i. The locking mechanism moves to the top of the next mounting hole of the workpiece and repeats the screw locking action.

[0076] The locking mechanism provided in the present application can store the screws in the storage tray 30, and the screws can be directly taken from the storage tray 30 when being locked, thereby improving the efficiency of screw locking.

[0077] The present application provides a screw locking machine, including the locking mechanism described in the above specific embodiment; other parts of the screw locking machine can refer to the relevant technology and will not be elaborated in this article.

[0078] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0079] The locking mechanism and screw locking machine provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the scheme and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the present application.

Claims

1. A locking mechanism, characterized in that: include: base(10); A locking component (20) is disposed on the substrate (10) and is used to absorb the screw and place the screw into the workpiece to lock the screw; A storage tray (30) is movably disposed below the locking assembly (20) and is used to store a plurality of screws; A material storage drive assembly (40) is connected to the base plate (10) and the material storage tray (30) and is used to drive the material storage tray (30) to move relative to the base plate (10), so that the screws on the material storage tray (30) move in sequence to the bottom of the locking assembly (20).

2. The locking mechanism according to claim 1, characterized in that: The material storage tray (30) comprises: A connecting portion (31) connected to the material storage drive assembly (40); The material storage portion (32) is located at the periphery of the connecting portion (31), and the material storage portion (32) comprises a plurality of material storage stations (321) distributed along a circumferential direction, wherein the material storage stations (321) are used to store screws.

3. The locking mechanism according to claim 2, characterized in that: An avoidance groove (322) is provided between any two adjacent material storage stations (321), and the avoidance groove (322) is used to provide an avoidance space when the locking assembly (20) locks the screws.

4. The locking mechanism according to claim 2, characterized in that: The material storage tray (30) is a circular disk body, the material storage stations (321) are arranged at equal intervals along the circumferential direction on the edge of the circular disk body, and the connecting portion (31) is arranged at the center of the circular disk body.

5. The locking mechanism according to claim 2, characterized in that: The material storage drive assembly (40) comprises: A rotating driving member (41) connected to the connecting portion (31) and used to drive the material storage tray (30) to rotate so as to switch between different material storage stations (321); A lifting drive member (42) is mounted on the base plate (10) and connected to the rotating drive member (41), and is used to drive the rotating drive member (41) and the material storage portion (32) to move in a direction approaching or away from the locking assembly (20), so that the screws on the material storage station (321) are placed at the suction station below the locking assembly (20).

6. The locking mechanism according to claim 2, characterized in that: The locking assembly (20) comprises: A suction nozzle (21) is used to be arranged toward the corresponding material storage station (321) to suck the screws in the corresponding material storage station (321); A locking drive member (22) and a locking head (23), wherein the locking head (23) is mounted on the locking drive member (22), the locking drive member (22) is movably connected to the base plate (10), and the locking drive member (22) is used to move along the axial direction of the suction nozzle (21) and to drive the locking head (23) to rotate so as to lock the screw.

7. The locking mechanism according to claim 6, characterized in that: A guide rail is provided on the base plate (10), and the locking drive member (22) is connected to a guide block, the guide block slidably cooperates with the guide rail to guide the movement of the locking drive member (22) relative to the base plate (10).

8. The locking mechanism according to claim 6, characterized in that: The locking assembly (20) further comprises a driving cylinder (24), wherein the driving cylinder (24) is disposed on the base plate (10) and connected to the locking driving member (22) so as to drive the locking driving member (22) to move along the axial direction of the suction nozzle (21).

9. The locking mechanism according to any one of claims 1 to 8, characterized in that: The locking mechanism also includes a detection component, which is used to detect the position of the screw on the workpiece to determine whether the screw is locked in place.

10. A screw locking machine, characterized in that: It comprises a locking mechanism as described in any one of claims 1 to 9.

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