Adsorption device for screw locking machine and screw locking machine

Abstract

The utility model provides an adsorption device for a screw locking machine, comprising: an adsorption rod, an airway for ventilation is arranged inside the adsorption rod along the length direction of the adsorption rod, a receiving groove is arranged at the second end of the adsorption rod, and the receiving groove is connected to the airway; a limiting component, the limiting component is arranged inside the receiving groove, the limiting component comprises a limiting piece, an elastic piece and a mounting seat, the mounting seat is arranged at the bottom of the receiving groove, an end portion of the limiting piece away from the elastic piece is located in the airway, and the limiting piece is located at one end of the airway and contacts with the end of the head of the locking screw. The beneficial effects brought about by the technical solution in the utility model at least include: the limiting piece performs secondary limiting and fixing of the screw, and the limiting piece is located at the end of the screw head, which supports the screw in the X and Z directions, and the supporting effect is better; when screws of different sizes are adsorbed, the head of the screw can squeeze the elastic piece, and the elastic force supports the screw more effectively.

Description

Technical Field

[0001] The present application relates to the technical field of screw locking machines, and in particular to an adsorption device for a screw locking machine and a screw locking machine. Background Art

[0002] Screws are commonly used fasteners, mainly used to connect two or more parts of a product. At present, the screw assembly of many products is mostly done by workers holding screwdrivers to tighten the screws. However, in the mass production process, the workers often have high labor intensity, low efficiency, high labor costs, and it is difficult to ensure quality consistency, which is far from meeting industrial needs.

[0003] With the transformation and upgrading of my country's manufacturing industry automation, the production and manufacturing process urgently needs a large number of suitable assembly robots to improve production efficiency and quality and reduce production costs. Therefore, screw locking equipment has emerged to realize automatic screw locking and improve production efficiency. The existing suction screw locking equipment needs to be repeatedly moved to the top of the screw loader to adsorb the screws, and then return to the processing position for locking. However, during the transportation of screws, the existing device has a certain tolerance range in shape and thread size of screws of different sizes, resulting in a weakened adsorption force on the traditional suction nail head structure, which is prone to deviation and causes inaccurate screw locking, thereby causing the change in the angle of the tooth rail movement and the interlacing of the tooth rail to cause slippage during locking. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of the present utility model is to provide an adsorption device and a screw locking machine for a screw locking machine, which are used to solve the problem in the prior art that screws of different sizes have a certain tolerance range in shape and thread size, resulting in a weakened adsorption force on the traditional nail suction head structure, which is prone to deviation and causes inaccurate screw locking.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides an adsorption device for a screw locking machine, comprising:

[0006] An adsorption rod, wherein an airway for ventilation is arranged inside the adsorption rod along the length direction of the adsorption rod, the airway is connected to a vacuum machine, one end of the airway is an adsorption end, the adsorption end is provided with an adsorption port for adsorbing a screw, and a limiting step for a screw head is arranged inside the airway adsorption end;

[0007] A receiving groove, wherein the receiving groove is arranged on the inner wall of the airway, the receiving groove is located between the limiting step and the adsorption port, and the receiving groove is in communication with the airway;

[0008] A limiter assembly, the limiter assembly comprising an elastic member and a limiter, the elastic member being arranged at the bottom of the receiving groove, the limiter being arranged in the receiving groove for reciprocating motion, one end of the limiter being in contact with the elastic member, and the other end of the limiter being located in the airway;

[0009] Wherein, the limiting member has a limiting portion, and the limiting portion reciprocates between a working position and a storage position. When the limiting portion is located at the working position, the limiting portion abuts against the lower end surface of the screw head.

[0010] Optionally, the limiting assembly also includes a mounting seat, the cross-section of the accommodating groove is a circular structure, the mounting seat is arranged in the accommodating groove, the mounting seat is located at the bottom of the accommodating groove, one end of the elastic member abuts against the mounting seat, and the other end of the elastic member abuts against the limiting member, and the elastic member, mounting seat and limiting member are all provided in multiple numbers and the number is the same.

[0011] Optionally, the mounting seat is a cylindrical structure, and a mounting groove is provided at one end of the mounting seat close to the airway along the length direction of the mounting seat, the elastic member is located inside the mounting groove, and the limiting member is partially accommodated in the mounting groove.

[0012] Optionally, the limiting member is a spherical structure, and the upper end of the limiting member located in the airway contacts the end of the screw head.

[0013] Optionally, the accommodating groove is an annular groove, the accommodating groove is opened along the circumference of the inner wall of the airway, the elastic member is an elastic ring, the elastic ring is accommodated in the accommodating groove, and at least three limiting members are provided.

[0014] Optionally, a plurality of ventilation holes are provided on the limiting step along the length direction of the airway.

[0015] Optionally, a positioning hole is further provided on the adsorption rod, the positioning hole is located at the second end of the adsorption rod, and the positioning hole is arranged along the radial direction of the adsorption rod.

[0016] Optionally, a positioning ring for limiting position is provided on the outer wall of the adsorption rod.

[0017] Optionally, the adsorption rod is further provided with an air hole, one end of the air hole is communicated with the airway, and the other end of the air hole is communicated with the outside of the adsorption rod.

[0018] The present application also provides a screw locking machine, comprising the adsorption device as described in any one of the above, and further comprising:

[0019] A camera device, wherein the camera device is located on the screw machine body, and the adsorption device is located in the camera area of ​​the camera device;

[0020] An information processing device is located on the screw machine body and is electrically connected to the camera device.

[0021] As described above, the beneficial effects brought by the technical solution of the utility model include at least: by arranging the receiving groove and the limiting member in the airway, the limiting member can perform secondary limiting and fixing on the screw, thereby ensuring the stability of the screw during transportation, and the limiting member is located at the end of the screw head, which supports the screw in the X direction and the Z direction, and the supporting effect is better;

[0022] In addition, an elastic part is provided. When screws of different sizes are adsorbed, the head of the screw can squeeze the elastic part. While being covered, the elastic force can provide more effective support for the screw, avoiding deviation during transportation, thereby avoiding slipping of the screw when the screw is locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a cross-sectional view of an adsorption rod of an exemplary embodiment of the present invention;

[0024] Figure 2 Shown is a schematic diagram of the structure of a limit assembly of an exemplary embodiment of the utility model;

[0025] Figure 3 Shown as an exemplary embodiment of the present invention Figure 1 Middle AA section view;

[0026] Figure 4 Shown is a structural schematic diagram of a locking screw machine according to an exemplary embodiment of the utility model.

[0027] Part Number Description

[0028] 1. Adsorption rod; 2. Airway; 3. Accommodating groove; 4. Limiting assembly; 401. Limiting member; 402. Elastic member; 403. Mounting seat; 404. Mounting groove; 5. Limiting step; 6. Ventilation hole; 7. Positioning hole; 8. Positioning ring; 9. Ventilation hole; 10. Camera device; 11. Information processing device. DETAILED DESCRIPTION

[0029] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0030] It should be noted that the illustrations provided in the following embodiments are only used to schematically illustrate the basic concept of the present invention, and thus the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0031] In the following description, numerous details are discussed to provide a more thorough explanation of the embodiments of the present disclosure. However, it is obvious to those skilled in the art that the embodiments of the present disclosure can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present disclosure difficult to understand.

[0032] See also Figure 1 and Figure 2 The utility model provides an adsorption device for a screw locking machine, comprising:

[0033] An adsorption rod 1, wherein an airway 2 for ventilation is arranged inside the adsorption rod 1 along the length direction of the adsorption rod, wherein the airway 2 is connected to a vacuum machine, wherein one end of the airway 2 is an adsorption end, wherein the adsorption end is provided with an adsorption port for adsorbing a screw, and wherein a limiting step 5 for a screw head is arranged inside the airway adsorption end;

[0034] A receiving groove 3, wherein the receiving groove 3 is arranged on the inner wall of the airway 2, the receiving groove 3 is located between the limiting step 5 and the adsorption port, and the receiving groove 3 is in communication with the airway;

[0035] The limiting component 4 includes an elastic member 402 and a limiting member 401, wherein the elastic member 402 is disposed at the bottom of the receiving groove 3, and the limiting member 401 is reciprocatingly disposed in the receiving groove 3, and one end of the limiting member 401 contacts the elastic member 402, and the other end of the limiting member 401 is located in the airway 2;

[0036] The limiting member 401 has a limiting portion, and the limiting portion reciprocates between a working position and a storage position. When the limiting portion is located at the working position, the limiting portion abuts against the lower end surface of the screw head.

[0037] In one embodiment of the present application, specifically, the adsorption device includes an adsorption rod 1, an airway 2 is arranged inside the adsorption rod 1, the airway 2 is arranged along the length direction of the adsorption rod 1, and both ends of the airway 2 pass through both ends of the adsorption rod 1. The first end of the adsorption rod 1 is connected to the vacuum machine, and the vacuum machine creates negative pressure to adsorb the screw through the airway 2. The second end of the adsorption rod 1 is the adsorption end, and the adsorption end adsorbs the screw. A limiting step 5 is also arranged inside the adsorption end, and the limiting step 5 is used to limit the adsorbed screw to prevent the screw from being sucked into the vacuum machine. A receiving groove 3 is arranged inside the second end of the adsorption rod 1, and the receiving groove 3 is arranged along the radial direction of the adsorption rod 1. The inner end of the receiving groove 3 is connected to the airway 2, and a limiting component 4 is arranged in the receiving groove 3. A part of the limiting component 4 extends out of the receiving groove 3 and is located in the airway 2. Inside, the limiting component 4 includes a limiting member 401, an elastic member 402 and a mounting seat 403. The mounting seat 403 is arranged at the bottom of the accommodating groove 3 for limiting (that is, the mounting seat 403 is located at the end away from the airway 2). At the same time, the mounting seat 403 supports and limits the elastic member 402 and the limiting member 401. In this embodiment, the elastic member 402 adopts a return spring, one end of the return spring is connected to the mounting seat 403, and the other end of the return spring is connected to the limiting member 401. The end of the limiting member 401 away from the return spring is arranged inside the airway 2, and the part of the limiting member 401 located in the airway 2 is lower than the adsorbed screw. The limiting member 401 supports the end of the screw head. The limiting member 401 supports the screw in both the X and Z directions to prevent the screw from shaking or falling.

[0038] Furthermore, a working position and a storage position are provided in the airway 2. When the screw is not adsorbed, the limiting portion of the limiting member 401 is located at the storage position. When the screw is adsorbed, the screw squeezes the limiting member 401, and the limiting portion of the limiting member 401 moves to the working position, and the limiting portion squeezes the screw head.

[0039] The mounting seat 403 is a cylindrical structure. A mounting groove 404 is provided along the length direction of the mounting seat 403 at one end of the mounting seat 403 close to the airway 2 . The elastic member 402 is located inside the mounting groove 404 , and the limiting member 401 is partially accommodated in the mounting groove 404 .

[0040] In one embodiment of the present application, specifically, the mounting seat 403 is a cylindrical structure, and the mounting seat 403 is placed in the accommodating groove 3 along the length direction of the accommodating groove 3. A mounting groove 404 is arranged at one end of the mounting seat 403 close to the airway 2, and the cross-section of the mounting groove 404 is a circular structure. The return spring and the limit member 401 are both arranged inside the mounting groove 404, one end of the return spring is connected to the bottom of the mounting groove 404, and the other end of the return spring is connected to the limit member 401.

[0041] The stopper 401 is a spherical structure, and the upper end of the stopper 401 located in the airway 2 contacts the end of the screw head.

[0042] In one embodiment of the present application, specifically, the limit member 401 is a spherical structure, and the part of the limit member 401 arranged in the airway 2 is used to support the screw. The upper hemisphere of the limit member 401 and the end of the screw head are in contact and support, which can meet the support in the X direction and the Z direction at the same time.

[0043] Furthermore, at least one accommodating slot 3 is provided, at least one limiting component 4 is provided, and the number of the accommodating slots 3 and the limiting component 4 is the same, and one limiting component 4 is provided in each of the accommodating slots 3. In the present embodiment, three accommodating slots 3 and three limiting components 4 are provided, and an angle of 120 degrees is formed between every two accommodating slots 3.

[0044] In one embodiment of the present application, specifically, the receiving groove 3 is an annular groove, which is arranged around the inner wall of the airway. An annular elastic ring is arranged in the annular receiving groove 3, and the elastic ring is accommodated in the receiving groove as a whole. Three limiting members 401 are also arranged in the receiving groove 3, and the three limiting members 401 respectively fix the screws.

[0045] See also Figure 3 In one embodiment of the present application, specifically, a limiting step 5 for limiting the locking screw is provided at one end of the airway 2 close to the accommodating groove 3. The limiting step 5 is a circular ring structure. The limiting step 5 is arranged inside the airway 2. The limiting step 5 and the airway 2 are fitted and fixedly connected or integrated. The inner diameter of the limiting step 5 is smaller than the head diameter of the screw, which is convenient for limiting the screw and preventing the screw from being adsorbed to the vacuum machine.

[0046] The annular limiting step 5 is provided with a plurality of vent holes 6 along the length direction of the airway 2 .

[0047] In one embodiment of the present application, specifically, four vent holes 6 are arranged on the annular limiting step 5, the four vent holes 6 are arranged along the axial direction of the limiting step 5, the four vent holes 6 are all arranged to penetrate the annular limiting step 5, and the four vent holes 6 are used for ventilation after the screws are adsorbed.

[0048] In one embodiment of the present application, specifically, a positioning hole 7 is further provided on the adsorption rod 1, and the positioning hole 7 is located at the second end of the adsorption rod 1, and the positioning hole 7 is arranged along the radial direction of the adsorption rod 1, and the adsorption rod 1 is fixedly positioned by the positioning hole 7 when it is installed.

[0049] In one embodiment of the present application, specifically, a positioning ring 8 for limiting is provided on the outer wall of the adsorption rod 1. When the adsorption rod 1 is installed, the positioning ring 8 contacts the screw machine mounting part, and the positioning ring 8 is fixed at its mounting part to achieve installation fixation and positioning.

[0050] In one embodiment of the present application, specifically, the adsorption rod 1 is further provided with an air hole 9 , one end of the air hole 9 is connected to the airway 2 , and the other end of the air hole 9 is connected to the outside of the adsorption rod 1 .

[0051] See also Figure 4 The present application also provides a screw locking machine, comprising the adsorption device as described above, and further comprising:

[0052] A camera device 10, wherein the camera device is located on the screw machine body, and the adsorption device is located in the camera area of ​​the camera device 10; an information processing device 11, wherein the information processing device 11 is located on the screw machine body, and the information processing device 11 is electrically connected to the camera device 10. When the adsorption device adsorbs the screw, the transportation mechanism transports the adsorption device and the adsorbed screw. During the transportation process, the camera device 10 continuously photographs the screw, and the photographed image is transmitted to the information processing device 11. The transportation state of the screw in the photographed image is compared with the standard transportation state to check whether the screw is swayed during the transportation process.

[0053] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An adsorption device for a screw locking machine, characterized in that: include: An adsorption rod, wherein an airway for ventilation is arranged inside the adsorption rod along the length direction of the adsorption rod, the airway is connected to a vacuum machine, one end of the airway is an adsorption end, the adsorption end is provided with an adsorption port for adsorbing a screw, and a limiting step for a screw head is arranged inside the airway adsorption end; A receiving groove, the receiving groove is arranged on the inner wall of the airway, the receiving groove is located between the limiting step and the adsorption port, and the receiving groove is communicated with the airway; A limiter assembly, the limiter assembly comprising an elastic member and a limiter, the elastic member being arranged at the bottom of the receiving groove, the limiter being arranged in the receiving groove for reciprocating motion, one end of the limiter being in contact with the elastic member, and the other end of the limiter being located in the airway; Wherein, the limiting member has a limiting portion, and the limiting portion reciprocates between a working position and a storage position. When the limiting portion is located at the working position, the limiting portion abuts against the lower end surface of the screw head.

2. The adsorption device for a screw locking machine according to claim 1, characterized in that: The limiting assembly also includes a mounting seat, the cross-section of the accommodating groove is a circular structure, the mounting seat is arranged in the accommodating groove, the mounting seat is located at the bottom of the accommodating groove, one end of the elastic member abuts against the mounting seat, and the other end of the elastic member abuts against the limiting member, and the elastic member, mounting seat and limiting member are all provided in multiple numbers and the number is consistent.

3. The adsorption device for a screw locking machine according to claim 2, characterized in that: The mounting seat is a cylindrical structure, and a mounting groove is provided along the length direction of the mounting seat at one end of the mounting seat close to the airway, the elastic member is located inside the mounting groove, and the limiting member is partially accommodated in the mounting groove.

4. The adsorption device for a screw locking machine according to claim 3, characterized in that: The limiting member is a spherical structure, and the upper end of the limiting member located in the airway contacts the end of the screw head.

5. The adsorption device for a screw locking machine according to claim 1, characterized in that: The receiving groove is an annular groove, which is opened along the circumference of the inner wall of the airway. The elastic member is an elastic ring, which is received in the receiving groove. At least three limiting members are provided.

6. The adsorption device for a screw locking machine according to claim 1, characterized in that: A plurality of vent holes are arranged on the limiting step along the length direction of the airway.

7. The adsorption device for a screw locking machine according to any one of claims 1 to 6, characterized in that: The adsorption rod is also provided with a positioning hole, the positioning hole is located at the second end of the adsorption rod, and the positioning hole is arranged along the radial direction of the adsorption rod.

8. The adsorption device for a screw locking machine according to any one of claims 1 to 6, characterized in that: A positioning ring for limiting position is arranged on the outer wall of the adsorption rod.

9. The adsorption device for a screw locking machine according to any one of claims 1 to 6, characterized in that: The adsorption rod is also provided with an air hole, one end of the air hole is communicated with the airway, and the other end of the air hole is communicated with the outside of the adsorption rod.

10. A screw locking machine, characterized in that: The invention comprises an adsorption device for a screw locking machine as claimed in any one of claims 1 to 9, and further comprises: A camera device, wherein the camera device is located on the screw machine body, and the adsorption device is located in the camera area of ​​the camera device; An information processing device is located on the screw machine body and is electrically connected to the camera device.

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