CN216528986U

CN216528986U - Locking device

Info

Publication number: CN216528986U
Application number: CN202122196455.3U
Authority: CN
Inventors: 邱立国; 李力; 刘明晨; 章正
Original assignee: Zhuhai Titans New Power Electronics Co Ltd
Current assignee: Zhuhai Titans New Power Electronics Co Ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-05-13
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a locking device, which is characterized by comprising: a base; the pressurizing assembly is arranged on the base and can compress the laminate in the restraint tray; the locking assembly is arranged on the base and can lock a locking screw rod of the restraint tray; the iron powder produced in the locking process of the restraint tray can be reduced by applying the device.

Description

Locking device

Technical Field

The utility model relates to the field of chemical composition and volume, in particular to a locking device.

Background

During the formation process of the current hard-shell battery, the hard-shell battery usually expands thermally and generates air bubbles, thereby influencing the appearance and performance of the battery; therefore, in the formation process, the restraint tray is adopted to apply pressure to the battery in a laminate pressing mode.

Present restraint tray generally adopts the driven mode of screw-nut, pressurizes the locking to the lamination, in the middle of the process of pressurization locking and unblock each time, all need bear great axial force when the lead screw rotates to in the middle of locking and unblock process, thereby screw-nut excessively wears and teares easily and produces the iron powder, influences battery life and can bring the potential safety hazard simultaneously.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a locking device which can reduce iron powder generated in the locking process of the restraint tray.

The locking device of the present invention is characterized by comprising: a base; the pressurizing assembly is arranged on the base and can compress the batteries in the restraint tray; the locking assembly is arranged on the base and can lock the locking lead screw for restraining the tray, so that the battery is kept in a compressed state.

According to some embodiments of the utility model, the pressurizing assembly comprises: the first cylinder is arranged on the base; the ejector pin is connected on first cylinder, and the ejector pin can be to the clamp plate in restricting the tray under the drive of first cylinder to compress tightly the battery.

According to some embodiments of the utility model, the ejector pin is provided in plurality, and the plurality of ejector pins are distributed on the left and right sides of the locking assembly.

According to some embodiments of the utility model, the pressurizing assembly further comprises a photoelectric sensing device for detecting the position of the ram.

According to some embodiments of the utility model, there are a plurality of first cylinders, each of which has a plurality of lift pins attached thereto.

According to some embodiments of the utility model, a locking assembly comprises: the bottom plate is arranged on the base in a sliding manner; the motor is fixedly arranged on the bottom plate; the butt joint is connected with the motor and can be butted and locked with the screw rod; the axial movement synchronous component is arranged on the bottom plate and can drive the motor and the butt joint to rotate to lock the screw rod, and the locking screw rod is locked by the axial movement synchronous component along the locking screw rod.

According to some embodiments of the utility model, the axial movement synchronization assembly comprises: the motor is fixedly arranged on the mounting seat, and the butt joint is rotatably arranged on the mounting seat; the driving belt wheel is fixedly connected with the butt joint; the first lead screw is rotatably arranged on the bottom plate and extends along the front-back direction; the first nut is in threaded fit with the first lead screw; and the driving belt wheel is connected with the driven belt wheel through a synchronous belt, and the driven belt wheel is sleeved on the first lead screw and is fixedly connected with the first nut.

According to some embodiments of the utility model, the locking assembly further comprises: the take-up pulley rotates and sets up on the mount pad, and the take-up pulley butt hold-in range. According to some embodiments of the utility model, the locking assembly further comprises a sliding rail extending in the front-rear direction, the sliding rail being fixedly connected to the base, the sliding rail being slidably engaged with the base plate.

According to some embodiments of the utility model, the locking assembly further comprises: the second cylinder is arranged on the base and can drive the bottom plate to slide back and forth; the sliding rail is fixedly connected with the base and is in sliding fit with the bottom plate.

According to some embodiments of the utility model, the locking assembly further comprises a bevel gear set, and the abutment is connected to the output of the motor via the bevel gear set.

By applying the locking device, in the production process, the pressurizing assembly can be controlled to compress the laminate in the restraint tray, and then the locking assembly is controlled to rotate the locking screw in the restraint tray to pressurize and lock the laminate; compared with the mode of independently rotating the locking screw rod to perform pressurization locking, the pressurization assembly provides a part of pressurization force in the pressurization locking process, so that the axial force received by the screw rod is greatly reduced, the abrasion between the locking screw rod and the nut is further reduced, and the generation of iron powder in the pressurization locking process is effectively reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an isometric view of a locking device in an embodiment of the present invention;

FIG. 2 is a front view of a locking device in an embodiment of the present invention;

FIG. 3 is an isometric view of a locking assembly in an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a locking assembly in an embodiment of the present invention;

FIG. 5 is an isometric view of a restraint tray in accordance with an embodiment of the present invention;

the above figures contain the following reference numerals.

Reference numerals	Name(s)	Reference numerals	Name (R)
				100	Base seat	243	Driven pulley
110	First cylinder	244	Tension wheel
				120	Mounting plate	245	Driving bevel gear
130	Top rod	246	Driven bevel gear
				140	Photoelectric sensing device	247	Driving belt wheel
200	Locking assembly	248	First nut
				210	The second cylinder	249	First lead screw
220	Base plate	300	Restraint tray
				230	Sliding rail	310	Laminate
240	Mounting seat	320	Locking lead screw
				241	Electric machine	330	Avoiding hole
242	Butt joint	340	Pressing plate

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 4, the locking device of the present embodiment includes: a base 100; a pressurizing assembly disposed on the base 100, the pressurizing assembly being capable of compressing the battery in the restraint tray 300; and a locking assembly 200 disposed on the base 100, wherein the locking assembly 200 can lock the locking screw 320 of the restraining tray 300, so that the battery can be kept in a compressed state.

By applying the locking device, in the production process, the pressurizing assembly can be controlled to compress the laminate 310 in the restraint tray 300, then the locking assembly 200 is controlled to rotate the locking screw 320 in the restraint tray 300, and the laminate 310 is pressurized and locked; compared with the mode of independently rotating the locking screw 320 for pressurization and locking, the pressurization assembly provides a part of pressurization force in the pressurization and locking process, so that the axial force borne by the screw is greatly reduced, the abrasion between the locking screw 320 and the nut is further reduced, and the generation of iron powder in the pressurization and locking process is effectively reduced.

The structure of the restraint tray 300 is shown in fig. 5, a plurality of laminates 310 are arranged in the tray body along the front-back direction, the laminates 310 can move back and forth, the front end of the tray body is rotatably connected with a locking screw 320, and the locking screw 320 penetrates through the front-most substrate along the front-back direction and is in threaded fit with the front-most substrate; during formation, a battery is placed between two adjacent laminates 310, then the pressurizing assembly is controlled to tightly press the battery placed in the gap between the two laminates 310 through the pressing plate 340, and finally the locking assembly 200 is controlled to rotate and lock the lead screw 320, so that the lead screw 320 is completely locked; here, the pressing of the battery means that a pressing plate 340 at the most front side of the restraint tray 300 applies backward pressure so that the plurality of laminate plates 310 arranged from front to back are closely attached to the battery, thereby pressing the battery placed between the laminate plates.

In this embodiment, the pressing assembly can press the laminate 310 in the restraining tray 300 in various ways, for example, the pressing plate 340 at one end is pushed by a driving unit such as a pushing motor 241, an air cylinder, etc., so that the entire row of batteries can be pressed; the pressing plate 340 may also be pulled at the other side of the pressing plate by a driving member so that the battery can be compressed.

It will be appreciated that the locking assembly 200 can also rotate the locking lead screw 320 in a variety of ways, such as by a motor 241 or a pneumatic motor, coupled to the lead screw via a linkage, to drive the lead screw to rotate; or the pulley block can be driven by a cylinder and the like to drive the locking screw 320 to rotate.

It should be noted that in the present embodiment, the whole restraint tray 300 is only the usage environment corresponding to the locking device, and is not a part of the locking device itself; the locking device and the restraint tray 300 are arranged in a split manner, so that the structure of the restraint tray 300 can be effectively simplified, the problem that a pressurizing and locking mechanism needs to be arranged on each restraint tray 300 is effectively solved, and the cost of the tray is reduced.

As shown in fig. 1 and 2, the pressurizing assembly includes: a first cylinder 110 disposed on the base 100; the top rod 130 is connected to the first air cylinder 110, and the top rod 130 can move and press the layer plate 310 under the driving of the first air cylinder 110; during the pressing and locking process, the first cylinder 110 can be controlled to drive the push rod 130 to move forward, so that the push rod 130 passes through the avoiding hole 330 on the restraint tray 300 and abuts against and pushes the pressing plate 340.

As shown in fig. 1, in order to make the layer plate 310 uniformly stressed during the pressing process, a plurality of push rods 130 are provided, and the plurality of push rods 130 are distributed on the left and right sides of the locking assembly 200; at this time, the plurality of lift pins 130 are installed on the installation plate 120, and the installation plate 120 is connected to the piston of the first cylinder 110; during the pressing process, the first cylinder 110 drives the mounting plate 120 to move forward, so that the plurality of push rods 130 pass through the plurality of avoiding holes 330, and abut against and push the pressing plate 340.

As shown in fig. 1, in order to control the displacement of the lift pin 130 in the pressing assembly, the pressing assembly further includes a photoelectric sensing device 140 disposed on the base 100, and the photoelectric sensing device 140 is used for detecting the position of the lift pin 130; specifically, the photoelectric sensing device 140 includes a groove-shaped photoelectric sensor and a sensing piece, the groove-shaped photoelectric sensor is disposed on the base 100 and extends along the front-back direction, the sensing piece is disposed on the mounting plate 120 and can move back and forth along with the mounting plate 120 and the lift rod 130, and the position of the lift rod 130 can be detected by detecting the position of the sensing piece by the groove-shaped photoelectric sensor; in addition, the photoelectric sensing device may be disposed at other positions than the base 100 as long as the position of the lift pin 130 can be detected.

As shown in fig. 1, there are a plurality of first cylinders 110, and each first cylinder 110 is connected with a plurality of push rods 130; referring to fig. 5, the containment tray 300 has two columns of sheets 310 disposed therein; in order to press and lock two rows of laminates 310, two first air cylinders 110 are arranged on the base 100, each first air cylinder 110 drives a plurality of ejector rods 130, the number of the locking assemblies 200 is two, and the ejector rods 130 on each first air cylinder 110 are distributed on the left side and the right side of one locking assembly 200.

As shown in fig. 3 and 4, the locking assembly 200 includes: a base plate 220 slidably disposed on the base 100; a motor 241 fixedly disposed on the base plate 220; the butt joint 242 is connected with the motor 241, and the butt joint 242 can be in butt joint with the locking screw 320; the axial movement synchronizing assembly is arranged on the bottom plate 220, and the axial movement synchronizing assembly can drive the motor 241 and the butt joint 242 to synchronously move along the axial direction of the locking screw 320 when the locking screw 320 rotates, so as to lock the locking screw 320.

The axial movement synchronizing assembly includes: the mounting seat 240, the motor 241 is fixedly arranged on the mounting seat 240, and the butt joint 242 is rotatably arranged on the mounting seat 240; a driving pulley 247 fixedly connected to the butt joint 242; a first lead screw 249 rotatably disposed on the base plate 220, the first lead screw 249 extending in the front-rear direction; a first nut 248 in threaded engagement with a first lead screw 249; the driving pulley 247 of the driven pulley 243 is connected to the driven pulley 243 through a timing belt, and the driven pulley 243 is sleeved on the first lead screw 249 and is fixedly connected to the first nut 248.

As shown in fig. 4, the locking assembly further includes a bevel gear set including a driving bevel gear 245 and a driven bevel gear 246, the driving bevel gear 245 is connected with the motor 241, and the driven bevel gear 246 is connected with the butt joint 242; through the reversing of the bevel gear set, the motor 241 can be vertically placed as shown in fig. 4, so that the motor 241 is prevented from interfering with the mounting plate 120 to influence the work of the pressurizing assembly, and meanwhile, the transverse space can be saved.

As shown in fig. 4, the locking assembly 200 includes: a base plate 220 slidably disposed on the base 100; a motor 241 fixedly disposed on the base plate 220; the butt joint 242 is connected with the motor 241, and the butt joint 242 can be in butt joint with the locking screw 320; the axial movement synchronizing assembly is arranged on the bottom plate 220, and can drive the motor 241 and the butt joint 242 to synchronously move along the axial direction of the locking screw 320 when the locking screw 320 rotates, so that the locking screw 320 is locked; at this time, when the first motor 241 operates, the butt joint 242 and the driving pulley 247 rotate, the driven pulley 243 rotates under the driving of the driving pulley 247 and the synchronous belt, the first nut 248 rotates under the driving of the driven pulley 243, because the first nut 248 is in threaded fit with the first lead screw 249, when the first nut 248 rotates, the first nut 248 can move back and forth along the first lead screw 249, so as to drive the whole installation seat 240 to move back and forth, when the installation seat 240 drives the butt joint 242 to move forward, the butt joint 242 can be in butt joint with the locking lead screw 320, and when the installation seat 240 drives the butt joint 242 to move backward, the butt joint 242 can be separated from the locking lead screw 320; that is, the operation of the motor 241 is controlled, so that the connection and the separation of the butt joint 242 and the locking screw 320 can be controlled, and the butt joint 242 can be controlled to drive the locking screw 320 to rotate.

As shown in fig. 3, the locking assembly 200 further includes: a tension pulley 244 rotatably provided on the mount 240, the tension pulley 244 abutting against the timing belt; at this time, the tension pulley 244 can abut against and press the timing belt, so that the timing belt can be well engaged with both the driving pulley 247 and the driven pulley 243, and the transmission reliability is improved.

As shown in fig. 2 to 4, the locking assembly 200 further includes a bevel gear set, and the butt joint 242 is connected to an output end of the motor 241 through a bevel gear.

As shown in fig. 2 to 4, the locking assembly 200 further includes: the second cylinder 210 is arranged on the base 100, the second cylinder 210 can drive the bottom plate 220 to slide back and forth, and when the equipment fails, the second cylinder 210 can be controlled to drive the bottom plate 220 to move backwards, so that the butt joint 242 is separated from the locking screw 320, and the problem that the butt joint 242 and the locking screw 320 are clamped is solved.

As shown in fig. 4, in order to enable the bottom plate 220 to slide back and forth smoothly relative to the base 100 and avoid the second cylinder 210 from being locked, the locking assembly 200 further includes a sliding rail 230 extending in the back and forth direction, the sliding rail 230 is fixedly connected to the base 100, and the sliding rail 230 is slidably engaged with the bottom plate 220.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A locking device, comprising:

a base (100);

a pressurizing assembly disposed on the base (100), the pressurizing assembly capable of compressing the batteries in the restraint tray (300);

the locking assembly (200) is arranged on the base (100), and the locking assembly (200) can lock the locking screw rod (320) of the restraint tray (300) so that the battery can be kept in a compressed state.

2. The locking device of claim 1, wherein the compression assembly comprises:

a first cylinder (110) provided on the base (100);

and the ejector rod (130) is connected to the first air cylinder (110), and the ejector rod (130) can press the pressing plate (340) in the restraint tray (300) under the driving of the first air cylinder (110) so as to press the battery.

3. The locking device according to claim 2, characterized in that the ejector pin (130) is provided in plurality, and the plurality of ejector pins (130) are distributed on the left and right sides of the locking assembly (200).

4. Locking device according to claim 3, characterized in that the pressure assembly further comprises a photo sensor device (140), the photo sensor device (140) being adapted to detect the position of the ram (130).

5. A locking device according to claim 3, wherein there are a plurality of said first cylinders (110), and a plurality of rams (130) are connected to each of said first cylinders (110).

6. Locking device according to any one of claims 1 to 5, characterized in that said locking assembly (200) comprises:

a base plate (220) slidably disposed on the base (100);

a motor (241) fixedly arranged on the bottom plate (220);

the butt joint (242) is connected with the motor (241), and the butt joint (242) can be butted with the locking screw rod (320);

the axial movement synchronous component is arranged on the bottom plate (220), and can drive the motor (241) and the butt joint (242) to rotate when the locking screw rod (320) is rotated, the axial movement synchronous component moves along the axial direction of the locking screw rod (320) to lock the locking screw rod (320).

7. The locking device of claim 6, wherein the axial movement synchronization assembly comprises: the motor (241) is fixedly arranged on the mounting seat (240), and the butt joint (242) is rotatably arranged on the mounting seat (240);

a drive pulley (247) fixedly connected to the butt joint (242);

a first lead screw (249) rotatably provided on the base plate (220), the first lead screw (249) extending in a front-rear direction;

a first nut (248) in threaded engagement with the first lead screw (249);

the driving belt wheel (247) is connected with the driven belt wheel (243) through a synchronous belt, and the driven belt wheel (243) is sleeved on the first lead screw (249) and is fixedly connected with the first nut (248).

8. The locking device of claim 7, wherein the locking assembly (200) further comprises:

and a tension pulley (244) rotatably provided on the mounting base (240), the tension pulley (244) abutting against the timing belt.

9. The locking device according to claim 6, characterized in that said locking assembly (200) further comprises:

the second air cylinder (210) is arranged on the base (100), and the second air cylinder (210) can drive the bottom plate (220) to slide back and forth;

the sliding rail (230), the sliding rail (230) is fixedly connected with the base (100), and the sliding rail (230) is in sliding fit with the bottom plate (220).

10. Locking device according to claim 9, characterized in that the locking assembly (200) further comprises a bevel gear set by means of which the abutment (242) is connected with the output of the motor (241).