Bolt feeding and tightening equipment and battery production line

Abstract

The utility model provides bolt feeding and tightening equipment and a battery production line. The bolt feeding and tightening equipment comprises a bolt feeding device, a bolt magazine conveying device and a bolt tightening device. The bolt magazine conveying device comprises a magazine and a conveying mechanism, the magazine is used for receiving and storing bolts provided by the bolt supply device, and the conveying mechanism is used for driving the magazine to be switched between a feeding position and a discharging position; the bolt tightening device comprises a tightening mechanism and a magazine picking mechanism, the magazine picking mechanism is connected to the tightening mechanism and used for picking up magazines from the discharging position and placing empty magazines back to the discharging position, and the tightening mechanism is used for sucking bolts in the magazines picked up by the magazine picking mechanism one by one and tightening the bolts to a workpiece one by one. According to the method, the remodeling time and cost can be reduced, and the bolt tightening efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of automatic bolt tightening, and more specifically, to a bolt feeding and tightening device and a battery production line. Background Art

[0002] With the rapid development of new energy technologies, demand for electric vehicles continues to grow. The production and assembly of electric vehicles, especially the assembly of battery cells, requires a large number of bolts for fastening. For example, the upper cover and the housing of a battery cell require multiple bolts to secure them. Reducing changeover time and costs while improving bolt tightening efficiency has become a hot topic. Utility Model Content

[0003] The embodiments of the present application provide a bolt feeding and tightening device and a battery production line to reduce the changeover time and cost and improve the bolt tightening efficiency.

[0004] In a first aspect, embodiments of the present application provide a bolt feeding and tightening device, comprising a bolt feeding device, a bolt magazine conveying device, and a bolt tightening device. The bolt feeding device is used to provide bolts; the bolt magazine conveying device includes a magazine and a conveying mechanism, the magazine being used to receive and store the bolts provided by the bolt feeding device, and the conveying mechanism being used to drive the magazine to switch between a loading position and an unloading position; the bolt tightening device includes a tightening mechanism and a magazine pickup mechanism, the magazine pickup mechanism being connected to the tightening mechanism and being used to pick up the magazine from the unloading position and return an empty magazine to the unloading position; the tightening mechanism is used to individually absorb the bolts from the magazine picked up by the magazine pickup mechanism and tighten the bolts one by one on a workpiece.

[0005] The magazine receives and stores the bolts provided by the bolt feeding device at the loading position, and the magazine picking mechanism picks up the magazine with bolts at the unloading position to provide the magazine to the tightening mechanism. The tightening mechanism absorbs the bolts in the magazine and tightens the bolts to the workpiece. The magazine picking mechanism can also put the empty magazine back to the unloading position, and the magazine switches from the unloading position to the loading position to receive and store the bolts provided by the bolt feeding device again. Thus, the bolt feeding device and the bolt tightening device use the magazine as an intermediate medium to realize automatic feeding and automatic tightening of bolts; rapid model change can be achieved by replacing the magazine without changing the entire set of equipment, reducing model change time and cost, and compared with the traditional robot's back and forth movement to achieve bolt picking and tightening, it can reduce the time of the robot's back and forth movement to pick up bolts, thereby improving the efficiency of bolt tightening.

[0006] In some embodiments, the magazine includes a magazine body and a push block assembly, the magazine body is provided with a bolt inlet and outlet and a bolt accommodating slot, one end of the bolt accommodating slot is connected to the bolt inlet and outlet; the push block assembly is configured to push the bolt in the bolt inlet and outlet into the bolt accommodating slot when the bolt is loaded into the magazine; or, when the bolt is unloaded from the magazine, push the bolt in the bolt accommodating slot out to the bolt inlet and outlet.

[0007] The push block assembly is configured to push the bolts at the bolt inlet and outlet into the bolt receiving slot when the magazine is loading the bolt; or, to push the bolts in the bolt receiving slot out to the bolt inlet and outlet when the magazine is pulling the bolt out, so that the magazine can automatically load and unload bolts. Compared with the traditional robot's back-and-forth movement to take out and tighten the bolts, it can reduce the time for taking out the bolts, thereby improving the efficiency of tightening the bolts.

[0008] In some embodiments, the push block assembly includes a first push block, a second push block, a first spring and a second spring, the first push block and the second push block are both slidably connected to the magazine body, the first push block and the second push block are spaced apart, the first spring connects the first push block and an end of the magazine body away from the second push block, and the second spring connects the second push block and an end of the magazine body away from the first push block; when the magazine is loaded with a bolt, the first spring has an elastic force that drives the first push block to move close to the second push block; when the magazine is unbolted, the second spring has an elastic force that drives the second push block to move close to the first push block.

[0009] As a result, the magazine can automatically feed and remove the bolt more smoothly.

[0010] In some embodiments, the first push block has an inclined surface facing the bolt inlet and outlet, and an end of the inclined surface close to the second push block is lower than an end away from the second push block.

[0011] The inclined surface allows the bolt to enter the magazine more smoothly from the bolt inlet and outlet, thereby improving the reliability of the magazine when installing the bolt.

[0012] In some embodiments, a limit opening for inserting and removing a limit pin is provided on the side of the magazine body away from the first push block. When the limit pin is inserted into the limit opening, it blocks the second push block from moving close to the first push block. When the limit pin is pulled out of the limit opening, it releases the blockage for the second push block from moving close to the first push block.

[0013] By inserting the limit pin into the limit opening, the limit pin limits the second push block, which facilitates the smoother pushing of multiple bolts into the accommodating groove when the magazine is loaded with bolts; by pulling the limit pin out of the limit opening, when the magazine is pulled out with bolts, the elastic force of the second spring drives the second push block to move closer to the first push block, so that the second push block pushes the multiple bolts to the bolt inlet and outlet one by one.

[0014] In some embodiments, the bolt accommodating groove includes a first groove portion, a second groove portion and a third groove portion, the second groove portion connects the first groove portion and the third groove portion, the first groove portion is used to accommodate the stud of the bolt, the third groove portion is used to accommodate the nut of the bolt, and the second groove portion is used to accommodate the flange of the bolt.

[0015] Since the bolt receiving groove includes the first groove portion, the second groove portion and the third groove portion, the bolt entering the bolt receiving groove can be kept in a specified posture, which makes it convenient for the tightening mechanism to absorb and directly tighten it on the workpiece. The tightening mechanism no longer needs to adjust the bolt posture, thereby improving the bolt tightening efficiency.

[0016] In some embodiments, two opposite outer side surfaces of the magazine body along its width direction are respectively provided with grooves for being clamped by the magazine picking mechanism.

[0017] By providing grooves on two opposite outer side walls of the magazine body along its width direction, the stability of the magazine picking mechanism when clamping the magazine can be improved.

[0018] In some embodiments, the magazine includes a first magazine and a second magazine; the conveying mechanism includes a first conveying member, a second conveying member and a conveying driving member, the first magazine and the second magazine are respectively arranged on the first conveying member and the second conveying member, and the conveying driving member is used to drive the first conveying member to drive the first magazine to switch back and forth between the loading position and the first unloading position, and drive the second conveying member to drive the second magazine to switch back and forth between the loading position and the second unloading position.

[0019] As a result, the conveying mechanism can realize uninterrupted connection of bolts between two magazines and conveying of fully loaded magazines, which is beneficial to improving feeding efficiency.

[0020] In some embodiments, the magazine picking mechanism includes a magazine jaw and a jaw driving component, wherein the magazine jaw is used to clamp the magazine, and the jaw driving component is used to drive the magazine jaw close to or away from the tightening mechanism so that the tightening mechanism can absorb the bolt in the magazine or make the magazine avoid the tightening mechanism.

[0021] By driving the magazine jaws toward or away from the tightening mechanism through the jaw driving member, the tightening mechanism can absorb the bolts in the magazine one by one, and the magazine can avoid the tightening mechanism so that the tightening mechanism can tighten the absorbed bolts on the workpiece.

[0022] In some embodiments, the bolt feeding and tightening equipment further includes a robot, and the bolt tightening device is connected to the robot.

[0023] The bolt tightening device is connected to the robot, making the operation of the bolt tightening device more flexible.

[0024] In some embodiments, the bolt feeding device includes a bolt magazine and a bolt shaping member, the bolt magazine is used to accommodate multiple bolts; the bolt shaping member can be movably arranged in the bolt magazine, for shaping the bolts in the bolt magazine into a specified posture, and providing the bolts in the specified posture to the magazine.

[0025] As a result, the bolt feeding device can shape the scattered bolts into bolts with a predetermined posture, thereby realizing automatic bolt feeding.

[0026] In a second aspect, an embodiment of the present application provides a battery production line, comprising the bolt feeding and tightening device of any embodiment in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope.

[0028] Figure 1 A schematic structural diagram of a bolt feeding and tightening device provided in some embodiments of the present application;

[0029] Figure 2 A schematic structural diagram of a bolt feeding device and a bolt magazine conveying device provided in some embodiments of the present application;

[0030] Figure 3 A schematic diagram of the exploded structure of a bolt magazine provided in some embodiments of the present application;

[0031] Figure 4 A cross-sectional view of a bolt magazine provided for some embodiments of the present application;

[0032] Figure 5 A top view of a bolt magazine provided for some embodiments of the present application when the bolt is fed;

[0033] Figure 6 for Figure 5 Cross-sectional view of the middle AA part;

[0034] Figure 7 A top view of a bolt magazine with the bolt removed provided for some embodiments of the present application;

[0035] Figure 8 for Figure 7 Cross-section of the middle BB area;

[0036] Figure 9 A schematic structural diagram of a bolt tightening device provided in some embodiments of the present application;

[0037] Figure 10 A schematic structural diagram of a bolt tightening device from another perspective provided in some embodiments of the present application.

[0038] icon:

[0039] 100-bolt feeding and tightening equipment;

[0040] 10-bolt feeding device; 11-bolt hopper; 12-bolt shaping member; 121-bolt shift plate; 122-shift plate driving mechanism; 123-bolt shaping discharge slot; 124-bolt outlet blocking cylinder; 125-bolt pressing cylinder;

[0041] 20-bolt magazine transport device; 21-magazine; 2101-first magazine; 2102-second magazine; 211-magazine body; 211a-bolt inlet and outlet; 211b-bolt receiving groove; 211b-1-first groove; 211b-2-second groove; 211b-3-third groove; 211c-limiting opening; 211d-slide; 211e-groove; 211f-avoidance groove; 212-push block Assembly; 2121 - first push block; 2121a - inclined surface; 2122 - second push block; 2123 - first spring; 2124 - second spring; 22 - conveying mechanism; 2201 - first conveying member; 2202 - second conveying member; 221 - carrier guide plate; 2211 - guide groove; 222 - linear guide rail; 223 - carrier drive plate; 224 - pulley; 225 - magazine fixing carrier plate; 23 - limit pin;

[0042] 30-bolt tightening device; 31-tightening mechanism; 311-bolt suction sleeve; 312-sleeve driving cylinder; 32-magazine pickup mechanism; 321-magazine clamp; 322-clamp driving member; 33-CCD assembly; 34-flange; 35-height sensor; 36-connecting side plate;

[0043] 40-Robot;

[0044] E-bolt. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of 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. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0046] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0048] In the description of the embodiments of the present application, it should be noted that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. These are merely for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present application. In addition, the terms "first," "second," "third," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0049] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0050] With the rapid development of new energy technologies, demand for electric vehicles continues to grow. The production and assembly of electric vehicles, especially the assembly of battery cells, requires numerous bolts for fastening. For example, the battery cover and housing require multiple bolts to secure them. Improving bolt tightening efficiency and reducing changeover time and costs are currently receiving significant attention.

[0051] In related technologies, automated bolt tightening methods use an air blow pipe to connect a bolt tightening mechanism to a bolt feeding mechanism. Bolts are blown directly from the silo through the air blow pipe to the tightening gun head before being tightened. However, this bolt tightening method is not compatible with a variety of bolt types and requires the entire equipment to be replaced when changing models, resulting in high conversion costs. Alternatively, a bolt suction method is used, where a robot cyclically grabs bolts from the silo's bolt outlet and locks them in the tightening position. The robot moves back and forth to retrieve and tighten the bolts, which is inefficient.

[0052] To this end, the present application provides a bolt feeding and tightening device, comprising a bolt feeding device, a bolt magazine conveying device, and a bolt tightening device. The bolt feeding device is used to provide bolts; the bolt magazine conveying device includes a magazine and a conveying mechanism. The magazine is used to receive and store the bolts provided by the bolt feeding device, and the conveying mechanism is used to drive the magazine to switch between a loading position and an unloading position. The bolt tightening device includes a tightening mechanism and a magazine pickup mechanism. The magazine pickup mechanism is connected to the tightening mechanism and is used to pick up the magazine from the unloading position and return an empty magazine to the unloading position. The tightening mechanism is used to absorb the bolts from the magazine picked up by the magazine pickup mechanism one by one and tighten the bolts one by one on the workpiece.

[0053] Thus, the bolts provided by the bolt feeding device are received and stored by the magazine at the loading position, and the magazine picking mechanism picks up the magazine with bolts at the unloading position to provide the magazine to the tightening mechanism to absorb the bolts in the magazine, so that the tightening mechanism tightens the bolts to the workpiece, and the magazine picking mechanism can also put the empty magazine back to the unloading position so that the magazine can be switched from the unloading position to the loading position to receive and store the bolts provided by the bolt feeding device again. Thus, the bolt feeding device and the bolt tightening device use the magazine as an intermediate medium to realize automatic feeding and tightening of bolts. When changing models, only the magazine needs to be replaced without changing the entire set of equipment, thereby reducing the changeover time and cost. Compared with the traditional robot's back and forth movement method to realize taking and tightening bolts, it can reduce the time of the robot moving back and forth to take bolts, thereby improving the efficiency of bolt tightening.

[0054] The bolt feeding and tightening equipment of the embodiment of the present application can be used in automobile production and assembly, especially in the assembly and production of automobile batteries, especially in the connection and fixing process of the upper cover of the battery pack. It can also be expanded to all automated production fields using bolts for structural connection.

[0055] Below, refer to Figures 1 to 10 , the bolt feeding and tightening device 100 of the embodiment of the present application is described in detail.

[0056] The embodiment of the present application provides a bolt feeding and tightening device 100, comprising a bolt feeding device 10, a bolt magazine conveying device 20, and a bolt tightening device 30. The bolt feeding device 10 is used to provide bolts E. The bolt magazine conveying device 20 includes a magazine 21 and a conveying mechanism 22. The magazine 21 is used to receive and store the bolts E provided by the bolt feeding device 10. The conveying mechanism 22 is used to drive the magazine 21 to switch between a loading position and an unloading position. The bolt tightening device 30 includes a tightening mechanism 31 and a magazine picking mechanism 32. The magazine picking mechanism 32 is connected to the tightening mechanism 31 and is used to pick up the magazine 21 from the unloading position and return the magazine 21 to the unloading position. The tightening mechanism 31 is used to absorb the bolts E in the magazine 21 and tighten the bolts E on the workpiece.

[0057] The bolt feeding device 10 can be used to shape scattered bolts E into a predetermined posture and then supply the bolts E in the predetermined posture one by one to the magazine 21. For example, the bolt feeding device 10 may include a bolt magazine 11 for accommodating a plurality of scattered bolts and a bolt shaping member 12. The bolt shaping member 12 is used to shape the bolts in the bolt magazine 11 into a predetermined posture and then supply the bolts E in the predetermined posture to the magazine 21. The bolt feeding device 10 can be a common structure such as a paddle-type, a vibrating plate-type, or a step-feed type, for shaping scattered bolts E into a predetermined posture before supplying the bolts.

[0058] The magazine 21 is used to receive and store bolts E provided by the bolt feeding device 10 at the loading position. Once the bolts are loaded (e.g., fully loaded), the magazine 21 is switched to the unloading position, allowing the magazine pickup mechanism 32 to pick up the fully loaded magazine 21. There can be one or more magazines 21. Multiple magazines 21 can be alternately brought to the loading position, ensuring uninterrupted material delivery and improving feeding efficiency.

[0059] The conveying mechanism 22 can be a belt conveying mechanism, a screw nut transmission mechanism, a slider mechanism, a cylinder, etc.

[0060] The magazine pickup mechanism 32 can pick up the magazine 21 filled with bolts at the blanking position, and can also put the empty magazine 21 back into the blanking position. The magazine pickup mechanism 32 can pick up the magazine 21 by clamping, or other ways can pick up the magazine 21, such as suction, etc.

[0061] The tightening mechanism 31 is used to draw bolts E from the magazine 21 and tighten them onto the workpiece. The tightening mechanism 31 can draw bolts E from the magazine 21 picked up by the magazine pickup mechanism 32. Once the magazine 21 has been depleted of bolts E, the magazine pickup mechanism 32 returns the empty magazine 21 to the unloading position. For example, the tightening mechanism 31 can be a tightening gun-like structure, including a bolt-drawing sleeve for drawing bolts from the magazine 21. The bolt-drawing sleeve can be raised or lowered by a lifting cylinder, either toward or away from the magazine 21. The workpiece can be, for example, the upper cover of a battery device.

[0062] As an example, after the bolt feeding device 10 shapes the scattered bolts E into a specified posture, the bolts E in the specified posture are provided one by one to the magazine 21 at the loading position; the magazine 21 receives and stores a plurality of bolts E in the specified posture, and after it is full of bolts, the conveying mechanism 22 drives the magazine 21 to switch from the loading position to the unloading position; the magazine picking mechanism 32 picks up the magazine 21 full of bolts at the unloading position, and the tightening mechanism 31 absorbs the bolts E in the magazine 21 picked up by the magazine picking mechanism 32 one by one and tightens them to the workpiece one by one; after the bolts E in the magazine 21 picked up by the magazine picking mechanism 32 are used up, the magazine picking mechanism 32 puts the empty magazine 21 back to the unloading position; the conveying mechanism 22 drives the magazine 21 to switch from the unloading position to the loading position, so as to receive and store a plurality of bolts E in the specified posture again at the loading position, and so on and so forth, thereby realizing automatic feeding and automatic tightening of bolts.

[0063] The magazine 21 receives and stores the bolts E provided by the bolt feeding device 10 at the loading position, and the magazine picking mechanism 32 picks up the magazine 21 equipped with the bolts E at the unloading position to provide the magazine 21 to the tightening mechanism 31 to absorb the bolts E in the magazine 21, so that the tightening mechanism 31 tightens the bolts E to the workpiece, and the magazine picking mechanism 32 can also put the empty magazine 21 back to the unloading position, so that the magazine 21 is switched from the unloading position to the loading position, and again receives and stores the bolts E provided by the bolt feeding device 10. Thus, the bolt feeding device 10 and the bolt tightening device 30 use the magazine 21 as an intermediate medium to realize automatic feeding and automatic tightening of bolts. When changing models, only the magazine 21 needs to be replaced without changing the entire set of equipment, thereby reducing the model change time and cost. Compared with the traditional robot's back-and-forth movement method to realize taking and tightening bolts, it can reduce the time of the robot moving back and forth to take bolts, thereby improving the bolt tightening efficiency.

[0064] In some embodiments, the magazine 21 includes a magazine body 211 and a push block assembly 212. The magazine body 211 is provided with a bolt inlet and outlet 211a and a bolt receiving slot 211b, one end of which is in communication with the bolt inlet and outlet 211a. The push block assembly 212 is used to push a bolt from the bolt inlet and outlet 211a into the bolt receiving slot 211b when the magazine 21 is loading a bolt, or to push a bolt from the bolt receiving slot 211b into the bolt inlet and outlet 211a when the magazine 21 is unloading a bolt.

[0065] The bolt receiving slot 211b can extend along the length direction X of the magazine body 211 so that the multiple bolts in the bolt receiving slot 211b are arranged along the length direction. The bolt inlet and outlet 211a is used for allowing the bolts to enter the magazine body 211 or to be removed from the magazine body 211.

[0066] When loading bolts into the magazine 21, the push block assembly 212 pushes the bolts one by one from the bolt inlet and outlet 211a into the bolt receiving slot 211b until the bolts fill the entire bolt receiving slot 211b and form an array of bolts. When removing bolts from the magazine 21, the push block assembly 212 pushes the bolts arranged in the bolt receiving slot 211b one by one into the bolt inlet and outlet 211a, allowing the tightening mechanism 31 to absorb the bolts until all the bolts are removed.

[0067] The push block assembly 212 is configured to push the bolts in the bolt inlet and outlet 211a into the bolt receiving slot 211b when the magazine 21 is loading a bolt; or, to push the bolts in the bolt receiving slot 211b out of the magazine 21 when the magazine 21 is removing a bolt, so that the magazine 21 can automatically load and remove bolts. Compared with the traditional robot's back-and-forth movement method to take out and tighten bolts, it can reduce the time for taking out bolts, thereby improving the efficiency of tightening bolts.

[0068] In some embodiments, reference Figure 3 The push block assembly 212 includes a first push block 2121, a second push block 2122, a first spring 2123, and a second spring 2124. The first push block 2121 and the second push block 2122 are both slidably connected to the magazine body 211. The first push block 2121 and the second push block 2122 are spaced apart. The first spring 2123 connects the first push block 2121 and the magazine body 211 at one end away from the second push block 2122. The second spring 2124 connects the second push block 2122 and the magazine body 211 at one end away from the first push block 2121. When a bolt is inserted into the magazine 21, the first spring 2123 exerts an elastic force to drive the first push block 2121 toward the second push block 2122. When a bolt is removed from the magazine 21, the second spring 2124 exerts an elastic force to drive the second push block 2122 toward the first push block 2121.

[0069] The first pushing block 2121 and the second pushing block 2122 may be spaced apart along the length direction X of the magazine body 211 . When the magazine 21 is fully loaded with bolts, a plurality of arranged bolts are squeezed between the first pushing block 2121 and the second pushing block 2122 .

[0070] The magazine body 211 may be provided with a sliding groove 211 d that slides with the first pushing block 2121 and the second pushing block 2122 .

[0071] Reference Figure 5 and Figure 6 When the magazine 21 is loaded with a bolt, the bolt E entering the bolt inlet and outlet 211a interferes with the magazine body 211 and squeezes the first push block 2121, causing the first push block 2121 to move away from the second push block 2122 and compress the first spring 2123. Figure 6 As shown by the dotted line of the first push block 2121, as the bolt E continues to enter the bolt inlet and outlet 211a, when the bolt completely enters the bolt inlet and outlet 211a and is aligned with the bolt receiving groove 211b, the bolt E no longer interferes with the magazine body 211, and the first spring 2123 drives the first push block 2121 to move along the length direction X toward the second push block 2122 through the elastic restoring force, as shown in FIG. Figure 6 The first push block 2121 is shown as a solid line, so that the first push block 2121 pushes the bolt E into the bolt receiving slot 211b, and this reciprocating process is repeated to push multiple bolts into the bolt receiving slot 211b. When the magazine 21 is loaded with bolts, the second spring 2124 can prevent the second push block 2122 from moving closer to the first push block 2121 along the length direction X, so that the multiple bolts E can be pushed into the bolt receiving slot 211b more smoothly.

[0072] Reference Figure 7 and Figure 8 When the magazine 21 is pulling out a bolt, the second spring 2124 exerts an elastic force that forces the second push block 2122 toward the first push block 2121, causing the multiple bolts to abut against each other in sequence. The bolt E closest to the first push block 2121 is positioned at the bolt access port 211a, allowing the tightening mechanism 31 to tighten each bolt one by one. When the magazine 21 is pulling out a bolt, the first spring 2123 is compressed, forcing the first push block 2121 to clear the bolt access port 211a and providing force for the bolt E to approach the second push block 2122.

[0073] As a result, the magazine 21 can achieve automatic bolt insertion and removal more smoothly.

[0074] In some embodiments, the first pushing block 2121 has an inclined surface 2121 a facing the bolt inlet and outlet 211 a , and an end of the inclined surface 2121 a close to the second pushing block 2122 is lower than an end away from the second pushing block 2122 .

[0075] When the magazine 21 is loaded with a bolt, the bolt E entering the bolt inlet and outlet 211 a slides into contact with the inclined surface 2121 a , thereby squeezing the first push block 2121 , causing the first push block 2121 to compress the first spring 2123 .

[0076] Because the first push block 2121 has an inclined surface 2121a facing the bolt inlet and outlet 211a, and the end of the inclined surface 2121a close to the second push block 2122 is lower than the end away from the second push block 2122, the bolt E can enter the magazine 21 more smoothly from the bolt inlet and outlet 211a, thereby improving the reliability of bolt installation in the magazine 21.

[0077] In some embodiments, a limiting opening 211c ( Figure 2 As shown), when the limit pin 23 is inserted into the limit opening 211c, the second push block 2122 is blocked from moving close to the first push block 2121. When the limit pin 23 is pulled out of the limit opening 211c, the second push block 2122 is unblocked from moving close to the first push block 2121.

[0078] The limiting pin 23 can be inserted and removed from the limiting opening 211 c by pneumatic means.

[0079] When the magazine 21 is loaded with bolts, the limiting pin 23 is inserted into the limiting opening 211c to limit the second push block 2122. At this time, the second spring 2124 cannot drive the second push block 2122 to move closer to the first push block 2121 along the length direction X, so that the multiple bolts E can be pushed into the bolt receiving groove 211b more smoothly.

[0080] When the magazine 21 is ejected from the bolt, the limiting pin 23 is pulled out from the limiting opening 211c, and the elastic force of the second spring 2124 drives the second push block 2122 to move along the length direction X close to the first push block 2121, so that the second push block 2122 pushes the multiple arranged bolts E to reach the bolt inlet and outlet 211a one by one.

[0081] In some embodiments, reference Figure 4 The bolt accommodating groove 211b may include a first groove portion 211b-1, a second groove portion 211b-2 and a third groove portion 211b-3, the second groove portion 211b-2 connects the first groove portion 211b-1 and the third groove portion 211b-3, the first groove portion 211b-1 is used to accommodate the stud of the bolt E, the third groove portion 211b-3 is used to accommodate the nut of the bolt E, and the second groove portion 211b-2 is used to accommodate the flange of the bolt E.

[0082] The first slot 211b-1, the second slot 211b-2, and the third slot 211b-3 can be sequentially arranged along the height direction Z of the magazine body 211. The shape and size of the bolt-receiving slot 211b can match the shape and size of the bolt E. When upgrading, only the shape and size of the bolt-receiving slot 211b need to be changed, while the overall external structure of the magazine 21 remains unchanged, thus reducing the time required for changeovers.

[0083] Because the bolt accommodating groove 211b includes a first groove portion 211b-1, a second groove portion 211b-2 and a third groove portion 211b-3, the bolt E entering the bolt accommodating groove 211b can maintain a specified posture, making it convenient for the tightening mechanism 31 to absorb and directly tighten it on the workpiece. The tightening mechanism 31 no longer needs to adjust the posture of the bolt E, thereby improving the efficiency of bolt tightening.

[0084] In some embodiments, the magazine body 211 has two opposite outer side walls along the width direction Y, respectively provided with grooves 211e ( Figure 3 shown).

[0085] The depth of the groove 211e can be adapted to the magazine clamping claw 321 of the magazine picking mechanism 32. When the magazine picking mechanism 32 picks up the magazine 21, it can be positioned by the groove 211e so that the magazine clamping claw 321 cooperates with the groove 211e to achieve stable clamping.

[0086] By providing grooves 211 e on two opposite outer side walls of the magazine body 211 along the width direction Y thereof, the stability of the magazine picking mechanism 32 when clamping the magazine 21 can be improved.

[0087] In some embodiments, the magazine 21 includes a first magazine 2101 and a second magazine 2102. The conveying mechanism 22 includes a first conveying member 2201, a second conveying member 2202, and a conveying driving member (not shown). The first magazine 2101 and the second magazine 2102 are respectively disposed on the first conveying member 2201 and the second conveying member 2202. The conveying driving member is used to drive the first conveying member 2201 to drive the first magazine 2101 to switch back and forth between the loading position and the first unloading position, and to drive the second conveying member 2202 to drive the second magazine 2102 to switch back and forth between the loading position and the second unloading position.

[0088] When the first magazine 2101 receives the bolts E provided by the bolt feeding device 10 at the loading position, the second magazine 2102 is located at the second unloading position. When the first magazine 2101 is full of bolts, the conveying drive drives the first conveying member 2201 to drive the first magazine 2101 to switch from the loading position to the first unloading position, so that the magazine picking mechanism 32 picks up the first magazine 2101 at the first unloading position, and the conveying drive also drives the second conveying member 2202 to drive the second magazine 2102 to switch from the second unloading position to the loading position, so that the second magazine 2102 receives the bolts E provided by the bolt feeding device 10, and so on and so forth, realizing uninterrupted loading and unloading of the two magazines 21. As a result, the conveying mechanism 22 can realize double-station reciprocating feeding of the magazine 21, which is beneficial to improving the feeding efficiency and thus improving the bolt tightening efficiency.

[0089] As an example, the first conveying member 2201 may include a carrier plate guide plate 221, a linear guide rail 222 provided on the carrier plate guide plate 221, a carrier plate driving plate 223 and a magazine fixing carrier plate 225, and the first magazine 2101 is placed on the magazine fixing carrier plate 225. As an example, the first magazine 2101 may also be provided with an air-avoiding groove 211f ( Figure 4 As shown, the magazine-mounted carrier plate 225 is provided with a positioning structure (not shown) that cooperates with the air-avoidance slot 211f. A guide slot 2211 is formed in the carrier guide plate 221. A pulley 224 is provided on the magazine-mounted carrier plate 225. The carrier drive plate 223 is slidably connected to the linear guide rail 222 and can move along the linear guide rail 222 toward or away from the bolt feeding device 10 (movement in the X direction in the figure). The magazine-mounted carrier plate 225 is slidably connected to the carrier drive plate 223 and can slide relative to the carrier drive plate 223 in the Y direction. The pulley 224 passes through the carrier drive plate 223 and cooperates with the guide slot 2211. The conveying drive member is connected to the carrier drive plate 223. While the conveying drive member drives the carrier driving plate 223 to move back and forth in the X direction along the linear guide rail 222, the pulley 224 cooperates with the guide groove 2211 to enable the magazine fixing carrier 225 to move back and forth in the Y direction, so that the magazine fixing carrier 225 can avoid the second magazine 2102 when switching between the loading position and the first unloading position with the first magazine 2101.

[0090] The specific structure of the second conveyor 2202 can be the same as that of the first conveyor 2201. The conveyor drive can be a reciprocating drive composed of a servo motor and a belt. The carrier drive plate 223 of the first conveyor 2201 and the carrier drive plate 223 of the second conveyor 2202 are respectively connected to the belts. The servo motor drives the belts to reciprocate, thereby driving the two carrier drive plates 223 to move synchronously in opposite directions.

[0091] In some embodiments, reference Figure 9 and Figure 10 The magazine picking mechanism 32 includes a magazine clamping jaw 321 and a clamping jaw driving member 322. The magazine clamping jaw 321 is used to clamp the magazine 21, and the clamping jaw driving member 322 is used to drive the magazine clamping jaw 321 to move closer to or away from the tightening mechanism 31, so that the tightening mechanism 31 can absorb the bolts in the magazine 21, or make the magazine 21 avoid the tightening mechanism 31, so that the tightening mechanism 31 can tighten the absorbed bolts on the workpiece.

[0092] As an example, the magazine clamping jaws 321 can be opened and closed by a clamping jaw cylinder. The clamping jaw driving member 322 can be a component such as a cylinder or a motor that can drive the magazine clamping jaws 321 to move.

[0093] For example, the jaw driver 322 can drive the magazine jaw 321 toward the tightening mechanism 31 along its length direction X, so that the bolt inlet 211a of the magazine 21 is aligned with the bolt suction sleeve 311 of the jaw driver 322, allowing the bolt suction sleeve 311 to suck the bolt at the bolt inlet 211a. The jaw driver 322 can also drive the magazine jaw 321 away from the tightening mechanism 31 along its length direction X, so that the magazine 21 avoids the bolt suction sleeve 311, allowing the bolt suction sleeve 311 to tighten the sucked bolt onto the workpiece.

[0094] By driving the magazine jaw 321 toward or away from the tightening mechanism 31 through the jaw driving member 322, the tightening mechanism 31 can absorb the bolts in the magazine 21 one by one, and the magazine 21 can avoid the tightening mechanism 31 so that the tightening mechanism 31 can tighten the absorbed bolts on the workpiece.

[0095] The bolt tightening mechanism 31 and the magazine picking mechanism 32 can be fixed on the connecting side plate 36 , and the connecting side plate 36 is connected to the flange 34 .

[0096] In some embodiments, the bolt feeding and tightening equipment 100 further includes a robot 40 , and the bolt tightening device 30 is connected to the robot 40 .

[0097] The bolt tightening device 30 can be connected to the end of the robot 40 via a flange 34. The robot 40 can drive the bolt tightening device 30 to move and rotate, thereby driving the magazine pickup mechanism 32 to pick up a full magazine 21 from the unloading position and return an empty magazine 21 to the unloading position, and drive the bolt tightening device 30 to tighten bolts on the workpiece. The robot 40 can be a multi-axis robot, such as a three-axis robot.

[0098] By connecting the bolt tightening device 30 to the robot 40 , the operation of the bolt tightening device 30 becomes more flexible.

[0099] In some embodiments, the bolt feeding device 10 includes a bolt magazine 11 and a bolt shaping part 12. The bolt magazine 11 is used to accommodate multiple bolts E; the bolt shaping part 12 can be movably arranged in the bolt magazine 11, and is used to shape the bolts in the bolt magazine 11 into a specified posture, and provide the bolts E in the specified posture to the magazine 21.

[0100] As an example, the bolt shaping member 12 may include a bolt shifting plate 121 , a shifting plate driving mechanism 122 , a bolt shaping discharge notch 123 , a bolt outlet blocking cylinder 124 , and a bolt pressing cylinder 125 . After multiple bolts are poured into the bolt hopper 11, the bolt feeding device 10 drives the bolt picking plate 121 to move reciprocatingly up and down. During the downward movement of the bolt picking plate 121, the stud ends of some bolts are automatically stuck in the slots of the bolt picking plate 121 under the action of the bolt hopper 11. The bolts stuck in the slots of the bolt picking plate 121 flow into the bolt shaping and discharging slot 123 through the guidance of the slot during the upward movement of the bolt picking plate 121. When the bolts are squeezed to the outlet end of the bolt shaping and discharging slot, they are blocked by the bolt outlet blocking cylinder 124. When the bolt magazine 21 is in place information is received, the bolt outlet blocking cylinder 124 contracts cyclically, and the bolt pressing cylinder 125 reciprocates to press the bolts into the bolt magazine 21. When it is confirmed that the bolt magazine 21 is full of bolts, the bolt outlet blocking cylinder 124 blocks the bolts again to prevent the bolts from falling out.

[0101] The bolt shaping member 12 is only exemplary. It is understandable that the bolt shaping member 12 may also be a bolt vibration plate type or a step feeding type.

[0102] An embodiment of the present application also provides a battery production line, including the bolt feeding and tightening device 100 mentioned above.

[0103] Below, refer to Figures 1 to 10 , a specific example of this application is described.

[0104] An embodiment of the present application provides a bolt feeding and tightening device 100 , comprising a bolt feeding device 10 , a bolt magazine conveying device 20 , a bolt tightening device 30 and a robot 40 .

[0105] The bolt feeding device 10 includes a bolt magazine 11 and a bolt shaping member 12. The bolt shaping member 12 may include a bolt shifting plate 121, a shifting plate driving mechanism 122, a bolt shaping and discharging notch 123, a bolt outlet blocking cylinder 124, and a bolt extrusion cylinder 125. The bolt magazine 11 is used to accommodate a plurality of loose bolts E. The bolt shaping member 12 is movably mounted on the bolt magazine 11 and is used to shape the bolts in the bolt magazine 11 into a predetermined posture and then supply the bolts E in the predetermined posture to the magazine 21. After multiple bolts are poured into the bolt hopper 11, the bolt feeding device 10 drives the bolt picking plate 121 to reciprocate up and down. During the downward movement of the bolt picking plate 121, the stud ends of some bolts are automatically locked into the notches of the bolt picking plate 121 under the action of the bolt hopper 11. During the upward movement of the bolt picking plate 121, the bolts locked in the notches of the bolt picking plate 121 are guided by the notches and flow into the bolt shaping and discharging notches 123. When the bolts are squeezed to the outlet end of the bolt shaping and discharging notches, they are blocked by the bolt outlet blocking cylinder 124. When the bolt magazine 21 is in place, the bolt outlet blocking cylinder 124 cyclically contracts, and the bolt pressing cylinder 125 reciprocates to press the bolts into the bolt magazine 21. When it is confirmed that the bolt magazine 21 is full of bolts, the bolt outlet blocking cylinder 124 re-blocks the bolts to prevent them from falling out. The bolt shaping member 12 can also adopt a bolt vibration plate mode or a step feeding mode.

[0106] The bolt magazine feeder 20 includes two magazines 21 and a feed mechanism 22. The two magazines 21 are a first magazine 2101 and a second magazine 2102. The feed mechanism 22 includes a first feed member 2201, a second feed member 2202, and a feed drive (not shown). The first and second magazines 2101, 2102 are mounted on the first and second feed members 2201, 2202, respectively. The feed drive is configured to drive the first feed member 2201 to reciprocate between the first magazine 2101 and the first unloading position, and to drive the second feed member 2202 to reciprocate between the second magazine 2102 and the loading position. Each magazine 21 includes a magazine body 211 and a push block assembly 212. The magazine body 211 is provided with a bolt inlet and outlet 211a and a bolt receiving slot 211b. One end of the bolt receiving slot 211b is connected to the bolt inlet and outlet 211a. The push block assembly 212 includes a first push block 2121, a second push block 2122, a first spring 2123, and a second spring 2124. The first push block 2121 and the second push block 2122 are both slidably connected to the magazine body 211. The first push block 2121 and the second push block 2122 are spaced apart. The first spring 2123 connects the first push block 2121 and the magazine body 211 at one end away from the second push block 2122, and the second spring 2124 connects the second push block 2122 and the magazine body 211 at one end away from the first push block 2121. When a bolt is inserted into the magazine 21, the first spring 2123 exerts an elastic force to drive the first push block 2121 toward the second push block 2122. When a bolt is removed from the magazine 21, the second spring 2124 exerts an elastic force to drive the second push block 2122 toward the first push block 2121. When the magazine 21 is loaded with a bolt, the bolt E entering the bolt inlet and outlet 211a interferes with the magazine body 211 and squeezes the first push block 2121, causing the first push block 2121 to move away from the second push block 2122 and compress the first spring 2123. Figure 6 As shown by the dotted line of the first push block 2121, as the bolt E continues to enter the bolt inlet and outlet 211a, when the bolt completely enters the bolt inlet and outlet 211a and is aligned with the bolt receiving groove 211b, the bolt E no longer interferes with the magazine body 211, and the first spring 2123 drives the first push block 2121 to move along the length direction X toward the second push block 2122 through the elastic restoring force, as shown in FIG. Figure 6 The first push block 2121 is shown as a solid line, so that the first push block 2121 pushes the bolt E into the bolt receiving slot 211b, and so on, so that multiple bolts are pushed into the bolt receiving slot 211b. When the magazine 21 is loaded with bolts, the second spring 2124 can not drive the second push block 2122 to move closer to the first push block 2121 along the length direction X, so that multiple bolts E can be pushed into the bolt receiving slot 211b more smoothly. Figure 7 and Figure 8When the magazine 21 is pulling out a bolt, the second spring 2124 has an elastic force that drives the second push block 2122 to move closer to the first push block 2121, so that the multiple arranged bolts are pressed against each other in sequence, and the bolt E closest to the first push block 2121 is located at the bolt inlet and outlet 211a, so that the tightening mechanism 31 can absorb them one by one. When the magazine 21 is pulling out a bolt, the first spring 2123 can be compressed so that the first push block 2121 avoids the bolt inlet and outlet 211a and provides force for the bolt E to approach the second push block 2122. The structures of the first conveying member 2201 and the second conveying member 2202 can be the same. Taking the first conveying member 2201 as an example, the first conveying member 2201 includes a carrier guide plate 221, a linear guide rail 222 provided on the carrier guide plate 221, a carrier drive plate 223 and a magazine fixed carrier plate 225, and the first magazine 2101 is placed on the magazine fixed carrier plate 225. The first magazine 2101 can also be provided with an air avoidance groove 211f ( Figure 4 As shown, the magazine-mounted carrier plate 225 is provided with a positioning structure (not shown) that cooperates with the air-avoidance slot 211f. A guide slot 2211 is formed in the carrier guide plate 221. A pulley 224 is provided on the magazine-mounted carrier plate 225. The carrier drive plate 223 is slidably connected to the linear guide rail 222 and can move along the linear guide rail 222 toward or away from the bolt feeding device 10 (movement in the X direction in the figure). The magazine-mounted carrier plate 225 is slidably connected to the carrier drive plate 223 and can slide relative to the carrier drive plate 223 in the Y direction. The pulley 224 passes through the carrier drive plate 223 and cooperates with the guide slot 2211. The conveying drive member is connected to the carrier drive plate 223. While the conveyor drive member drives the carrier drive plate 223 to reciprocate along the linear guide rail 222 in the X direction, the pulley 224 cooperates with the guide slot 2211 to enable the magazine fixed carrier plate 225 to reciprocate in the Y direction. This allows the magazine fixed carrier plate 225, carrying the first magazine 2101, to avoid the second magazine 2102 during the switching process between the loading position and the first unloading position. The conveyor drive member can be a reciprocating drive member composed of a servo motor and a belt. The carrier drive plate 223 of the first conveyor member 2201 and the carrier drive plate 223 of the second conveyor member 2202 are respectively connected to the belt. The servo motor drives the belt to reciprocate, thereby driving the two carrier drive plates 223 to move synchronously in opposite directions.

[0107] The bolt tightening device 30 is connected to the end of the robot 40 via a flange 34. The robot 40 can drive the bolt tightening device 30 to move and rotate, thereby driving the magazine pickup mechanism 32 to pick up a full magazine 21 from the unloading position and return an empty magazine 21 to the unloading position, and to drive the bolt tightening device 30 to tighten the bolts onto the workpiece. The magazine pickup mechanism 32 includes magazine jaws 321 and a jaw driver 322. The magazine jaws 321 are used to clamp the magazine 21. The jaw driver 322 is used to drive the magazine jaws 321 toward or away from the tightening mechanism 31 to allow the tightening mechanism 31 to extract bolts from the magazine 21, or to move the magazine 21 out of the way of the tightening mechanism 31 so that the tightening mechanism 31 can tighten the extracted bolts onto the workpiece. The magazine jaws 321 can be opened and closed by a jaw cylinder. The jaw driver 322 can be a pneumatic cylinder. The jaw driver 322 can drive the magazine jaw 321 toward the tightening mechanism 31 along its length direction X, so that the bolt inlet 211a of the magazine 21 is aligned with the bolt suction sleeve 311 of the jaw driver 322, allowing the bolt suction sleeve 311 to absorb the bolt at the bolt inlet 211a. The jaw driver 322 can also drive the magazine jaw 321 away from the tightening mechanism 31 along its length direction X, so that the magazine 21 avoids the bolt suction sleeve 311, allowing the bolt suction sleeve 311 to tighten the absorbed bolt onto the workpiece.

[0108] The robot 40 drives the magazine clamping claw 321 of the bolt tightening device 30 to the unloading position, grabs the full magazine 21, and the clamping claw driving part 322 drives the magazine clamping claw 321 to approach the tightening mechanism 31 along its length direction X, so that the bolt inlet and outlet 211a of the magazine 21 reaches just below the bolt suction sleeve 311, and the bolt suction sleeve 311 is driven by the sleeve driving cylinder 312 to descend and absorb the bolt at the bolt inlet and outlet 211a. After the bolt suction sleeve 311 absorbs the bolt, it is raised and reset by the sleeve driving cylinder 312. The bolt tightening device 30 is driven by the robot 40 to the tightening station, and the tightening hole on the workpiece is located by the height measuring sensor 35 and the CCD assembly 33. At the same time, the magazine clamping claw 321 drives the magazine 21 to retreat and avoid the working position of the bolt suction sleeve 311. The sleeve driving cylinder 312 drives the bolt suction sleeve 311 to descend, so that the bolt in the bolt suction sleeve 311 is pressed into the tightening hole for tightening. The bolt-drawing sleeve 311 cyclically draws bolts from the magazine 21 and tightens them against the workpiece until the magazine 21 gripped by the magazine gripper 321 is empty. The robot 40 then returns the magazine 21 to the unloading position and replaces it with another fully loaded magazine 21. When changing bolt types, the corresponding magazine 21 and bolt-drawing sleeve 311 are replaced. Alternatively, multiple bolt feeding devices 10 of different types can be configured in an array. When changing bolt types, only the bolt-drawing sleeve 311 needs to be replaced. The robot 40 drives the magazine gripper 321 of the bolt tightening device 30 to grasp the corresponding magazine 21 of the bolt feeding device 10. No other components need to be replaced. When it is necessary to replace bolts of different types, it is only necessary to redesign and modify the three characteristic holes of the bolt accommodating groove 211b, namely the first groove portion 211b-1 (bolt nut shaping groove), the second groove portion 211b-2 (bolt flange limiting groove) and the third groove portion 211b-3 (bolt stud end groove) according to the bolt size. Other structures and characteristic dimensions do not need to be changed.

[0109] This embodiment of the present application modularizes the bolt feeding device 10 and the bolt tightening device 30, and incorporates a bolt magazine conveyor 20 with a dual-station reciprocating bolt feeding mechanism. The bolt tightening device 30, connected to the robot 40, is equipped with a magazine gripper 321 capable of reciprocating the magazine. The bolt feeding device 10 and the bolt tightening device 30 utilize the magazine 21 as a medium for rapid model changeover and automatic bolt feeding, further simplifying the entire bolt feeding and tightening device 100. To change models, only the corresponding magazine 21 and bolt-receiving sleeve 311 need to be adjusted. The main structural features of the bolt magazines can be identical, and the internal cavity (bolt-receiving slot 211b) can be designed based on the required bolt nut, bolt flange, and stud dimensions. Other gripping and positioning structures are designed based on the external dimensions of the bolt magazine 21. This highly flexible and compatible device addresses the issues of low manual bolt installation efficiency and the risk of incorrect bolt selection. It also accommodates a wide range of bolt types, simplifies model changeover, and reduces costs.

[0110] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A bolt feeding and tightening device, characterized in that: include: A bolt feeding device, for providing bolts; A bolt magazine conveying device, comprising a magazine and a conveying mechanism, wherein the magazine is used to receive and store the bolts provided by the bolt feeding device, and the conveying mechanism is used to drive the magazine to switch between a loading position and an unloading position; The bolt tightening device includes a tightening mechanism and a magazine picking mechanism. The magazine picking mechanism is connected to the tightening mechanism and is used to pick up the magazine from the unloading position and put the empty magazine back to the unloading position. The tightening mechanism is used to absorb the bolts in the magazine picked up by the magazine picking mechanism one by one and tighten the bolts to the workpiece one by one.

2. The bolt feeding and tightening device according to claim 1, characterized in that: The magazine comprises: The magazine body is provided with a bolt inlet and outlet and a bolt receiving groove, one end of the bolt receiving groove is communicated with the bolt inlet and outlet; A push block assembly is configured to push the bolt in the bolt inlet and outlet into the bolt accommodating groove when the bolt is loaded into the magazine; or to push the bolt in the bolt accommodating groove out of the bolt inlet and outlet when the bolt is unloaded from the magazine.

3. The bolt feeding and tightening device according to claim 2, characterized in that: The push block assembly includes a first push block, a second push block, a first spring, and a second spring, the first push block and the second push block are both slidably connected to the magazine body, the first push block and the second push block are spaced apart, the first spring connects the first push block and an end of the magazine body away from the second push block, and the second spring connects the second push block and an end of the magazine body away from the first push block; When the magazine is loaded with a bolt, the first spring has an elastic force that drives the first push block to move close to the second push block; when the magazine is loaded with a bolt, the second spring has an elastic force that drives the second push block to move close to the first push block.

4. The bolt feeding and tightening device according to claim 3, characterized in that: The first pushing block has an inclined surface facing the bolt inlet and outlet, and an end of the inclined surface close to the second pushing block is lower than an end away from the second pushing block.

5. The bolt feeding and tightening device according to claim 3, characterized in that: A limiting opening for inserting and removing a limiting pin is provided on a side of the magazine body away from the first push block. When the limiting pin is inserted into the limiting opening, the second push block is blocked from moving close to the first push block. When the limiting pin is pulled out of the limiting opening, the second push block is unblocked from moving close to the first push block.

6. The bolt feeding and tightening device according to claim 3, characterized in that: The bolt accommodating groove includes a first groove portion, a second groove portion and a third groove portion, the second groove portion connects the first groove portion and the third groove portion, the first groove portion is used to accommodate the stud of the bolt, the third groove portion is used to accommodate the nut of the bolt, and the second groove portion is used to accommodate the flange of the bolt.

7. The bolt feeding and tightening device according to claim 3, characterized in that: The two outer side surfaces of the magazine body opposite to each other along the width direction are respectively provided with grooves for being clamped by the magazine picking mechanism.

8. The bolt feeding and tightening device according to any one of claims 1 to 7, characterized in that: The magazine includes a first magazine and a second magazine; The conveying mechanism includes a first conveying member, a second conveying member and a conveying driving member. The first magazine and the second magazine are respectively arranged on the first conveying member and the second conveying member. The conveying driving member is used to drive the first conveying member to drive the first magazine to switch back and forth between the loading position and the first unloading position, and drive the second conveying member to drive the second magazine to switch back and forth between the loading position and the second unloading position.

9. The bolt feeding and tightening device according to any one of claims 1 to 7, characterized in that: The magazine picking mechanism includes a magazine jaw and a jaw driving component, wherein the magazine jaw is used to clamp the magazine, and the jaw driving component is used to drive the magazine jaw to approach or move away from the tightening mechanism so that the tightening mechanism can absorb the bolt in the magazine or make the magazine avoid the tightening mechanism.

10. The bolt feeding and tightening device according to any one of claims 1 to 7, characterized in that: The bolt feeding and tightening equipment also includes: A robot, wherein the bolt tightening device is connected to the robot.

11. The bolt feeding and tightening device according to any one of claims 1 to 7, characterized in that: The bolt feeding device comprises: Bolt silo for accommodating multiple bolts; The bolt shaping member is movably arranged in the bolt magazine, and is used to shape the bolts in the bolt magazine into a specified posture and provide the bolts in the specified posture to the magazine.

12. A battery production line, characterized in that: The invention comprises the bolt feeding and tightening device according to any one of claims 1 to 11.

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