CN216682044U

CN216682044U - Nail pulling mechanism and nail pulling device

Info

Publication number: CN216682044U
Application number: CN202220115685.4U
Authority: CN
Inventors: 不公告发明人
Original assignee: Sany Technology Equipment Co Ltd
Current assignee: Sany Technology Equipment Co Ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-06-07
Anticipated expiration: 2032-01-17

Abstract

The utility model provides a nail pulling mechanism and a nail pulling device, which belong to the technical field of lithium battery manufacturing equipment and comprise: the clamping head is internally provided with a hollow cavity, an opening suitable for the insertion of the glue nail is formed in the clamping head, and the opening can be sealed by the glue nail; and the gas through and exhaust structure is communicated with the hollow cavity and has an air exhaust state for exhausting the gas in the hollow cavity and an air ventilation state for introducing the gas into the hollow cavity. According to the nail pulling mechanism provided by the utility model, when the glue nail is pulled out, the opening of the clamping head is blocked by the glue nail to form the sealed space, the sealed space is pumped by the gas through-exhaust structure to form negative pressure so as to adsorb and fix the glue nail, so that the negative pressure can be used for pulling the nail only by enabling the glue nail and the inner wall of the clamping head to be in interference fit for sealing, the problem that the glue nail is difficult to clamp due to the size error and the position error of the glue nail is avoided, the success rate of nail pulling is improved, and the production progress is further improved.

Description

Nail pulling mechanism and nail pulling device

Technical Field

The utility model relates to the technical field of lithium battery manufacturing equipment, in particular to a nail pulling mechanism and a nail pulling device.

Background

With the development of new energy technology and the popularization of corresponding markets, lithium ion batteries are widely used in large and medium-sized electric equipment and automobiles due to the advantages of high voltage, high energy, multiple recycling times, long storage time and the like. The process formation time of the battery production is long, bubbles are generated during formation, great potential safety hazards exist, the performance of the battery is unstable, and therefore opening formation and vacuumizing are needed during formation of the battery. Because the electrolyte of battery has the hydroscopicity, and easy crystallization, so need be with in the battery box evacuation before the formation after the battery case notes liquid is accomplished, will annotate the liquid hole and block up with the glued membrane nail, need pull out the glued membrane nail again during the formation, will pull out evacuation in the battery box and insert the glued membrane nail after the formation again, so insert to pull out the nail and be an indispensable flow.

In the prior art, a clamping jaw structure is usually used for clamping the glue nail, and then the glue nail is pulled out. However, due to the size error and the position error of the glue nail, the situation that the glue nail cannot be clamped by the clamping jaw structure often occurs, the success rate of pulling out the glue nail is reduced, and the production progress is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to overcome the defects that the success rate of rubber nail pulling of the nail pulling mechanism in the prior art is low and the production progress is influenced, and provides the nail pulling mechanism and the nail pulling device.

In order to solve the above problems, the present invention provides a nail pulling mechanism, comprising: the clamping head is internally provided with a hollow cavity, an opening suitable for a glue nail to be inserted is formed in the clamping head, and the opening can be sealed by the glue nail; and the gas through and exhaust structure is communicated with the hollow cavity and has an air exhaust state for exhausting the gas in the hollow cavity and an air ventilation state for introducing the gas into the hollow cavity.

Optionally, the clamping head is a cylindrical structure, the lower end of the cylindrical structure is provided with the opening, and the top of the cylindrical structure is communicated with the gas through-exhaust structure.

Optionally, the clamping head is communicated with the gas venting structure through a connecting pipeline.

Optionally, the gas venting structure is an air pump.

Optionally, the gas venting structure includes a ventilation structure and a gas exhaust structure respectively communicated with the clamping head.

The utility model also provides a nail pulling device which comprises the nail pulling mechanism.

Optionally, the nail pulling device further comprises a force application structure, the force application structure is connected with the nail pulling mechanism, and the force application structure can apply force to the nail pulling mechanism so as to connect the clamping head with the rubber nail and pull out the rubber nail after the clamping head is connected with the rubber nail.

Optionally, the force application structure is a linear driving structure, and the linear driving structure is suitable for driving the nail pulling mechanism to move vertically.

Optionally, the nail pulling device further comprises a fixing structure, and the fixing structure is suitable for being connected with the battery cell to be pulled out so as to fix the position of the battery cell to be pulled out.

Optionally, the securing structure is a clamping tray.

The utility model has the following advantages:

1. according to the nail pulling mechanism provided by the utility model, the inside of the clamping head is set to be the hollow cavity, when the glue nail is pulled out, the glue nail is used for plugging the opening of the clamping head to form the sealed space, the sealed space is pumped by the gas through-exhaust structure to form negative pressure so as to adsorb and fix the glue nail, the glue nail can be pulled out, and the gas through-exhaust structure is used for ventilating the sealed space after the glue nail is pulled out, so that the glue nail is conveniently separated from the clamping head. Therefore, only need to make the inner wall interference fit of plastic pin and holding head realize sealedly can utilize the negative pressure to pull out the nail, avoided the size error of plastic pin and the difficult problem of carrying out the centre gripping to the plastic pin that position error leads to, improved the success rate of pulling out the nail, and then improved the production progress.

2. According to the nail pulling mechanism provided by the utility model, the air ventilation structure is set as the air pump, the air pump can be used for extracting air and introducing air, the structure is simple, and the use is convenient.

3. According to the nail pulling device provided by the utility model, the force application structure is arranged to drive the nail pulling mechanism to move integrally, the force application structure can drive the nail pulling mechanism to move to enable the clamping head to be connected with the rubber nail, and after the rubber nail is adsorbed and fixed, the rubber nail is pulled out by using the force application structure, so that the nail pulling mechanism is more convenient to be matched with the rubber nail.

4. According to the nail pulling device provided by the utility model, the position of the battery cell to be pulled out is fixed by arranging the fixing structure, so that the stability of the battery cell to be pulled out in the nail pulling process is ensured, and the pulling out of the glue nail is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram illustrating a nail pulling mechanism provided by an embodiment of the present invention in cooperation with a glue nail;

FIG. 2 is a schematic view of the overall structure of the nail pulling mechanism provided by the embodiment of the utility model;

fig. 3 shows a schematic structural view of another embodiment of the gas passage structure of the present invention.

Description of reference numerals:

10. a clamping head; 11. a hollow cavity; 12. an opening; 20. a gas through-exhaust structure; 30. and connecting the pipelines.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

One embodiment of a nail pulling mechanism, as shown in fig. 1 and 2, comprises: a gripping head 10 and a gas vent structure 20. The interior of the clamping head 10 is a hollow cavity 11, an opening 12 suitable for a glue nail to be inserted is opened on the clamping head 10, and the opening 12 can be sealed by the glue nail. The gas vent structure 20 is in communication with the hollow cavity 11, and the gas vent structure 20 has an air-extracting state for extracting the gas in the hollow cavity 11 and a ventilating state for ventilating the gas into the hollow cavity 11.

Set up the inside of holding head 10 into cavity 11, when pulling out the glued membrane nail, utilize the glued membrane nail to carry out the shutoff with the opening 12 of holding head 10 to form confined space, lead to row structure 20 through gas and bleed the confined space and form the negative pressure, adsorb fixedly with the glued membrane nail, can extract the glued membrane nail, and, utilize gaseous row structure 20 of leading to ventilate in the confined space after extracting the glued membrane nail, be convenient for the glued membrane nail breaks away from in the holding head 10. Therefore, only need to make the inner wall interference fit of plastic pin and holding head 10 realize sealedly can utilize the negative pressure to pull out the nail, avoided the size error of plastic pin and the difficult problem of carrying out the centre gripping to the plastic pin that position error leads to, improved the success rate of pulling out the nail, and then improved the production progress.

Specifically, in the present embodiment, as shown in fig. 1 and 2, the gripping head 10 is a cylindrical structure, the lower end of the cylindrical structure is the opening 12, and the top of the cylindrical structure is communicated with the gas vent structure 20.

It should be noted that, referring to fig. 1, the glue nail is generally in an approximately conical structure, so that the inner diameter of the clamping head 10 is smaller than the maximum outer diameter of the glue nail and slightly larger than the minimum outer diameter of the glue nail, when the clamping head 10 is sleeved outside the glue nail, the inner wall of the clamping head 10 and the outer wall of the glue nail are in interference fit, that is, the glue nail is used to seal the opening 12 of the clamping head 10, so as to form a sealed space inside the clamping head 10. Moreover, the glue nail is usually in a soft deformable structure, and the inner diameter of the clamping head 10 covers the deformation range and the tolerance range of the glue nail, so that the matching of the clamping head 10 and the glue nail can be ensured.

In the present embodiment, as shown in fig. 1 and 2, the top of the gripping head 10 communicates with the gas venting structure 20 through the connecting line 30.

In the present embodiment, as shown in fig. 1 and 2, the gas venting structure 20 is an air pump. The gas through-exhaust structure 20 is set as an air pump, and the air pump can be used for pumping gas out and introducing gas in, so that the structure is simple and the use is convenient.

It should be noted that, referring to fig. 3, the gas venting structure 20 may also include a ventilation structure and a gas-pumping structure, and the ventilation structure and the gas-pumping structure may be respectively communicated with the clamping head 10, that is, the ventilation and the gas-pumping to the hollow cavity 11 are realized through the ventilation structure and the gas-pumping structure which are separately arranged. Specifically, the ventilation structure may be an air intake pump, and the air exhaust structure may be a vacuum pump.

The embodiment also provides a specific implementation mode of the nail pulling device, which comprises the nail pulling mechanism, a force application structure and a fixing structure. The position of the battery cell to be pulled out is fixed by the fixing structure, the force application structure is utilized to drive the nail pulling mechanism to move to the clamping head 10 to be connected with the rubber nail, and the nail pulling mechanism is driven by the force application structure to pull out the rubber nail.

The force application structure is arranged to drive the nail pulling mechanism to move integrally, the force application structure can drive the nail pulling mechanism to move to enable the clamping head 10 to be connected with the rubber nail, and after the rubber nail is adsorbed and fixed, the rubber nail is pulled out by the force application structure, so that the nail pulling mechanism and the rubber nail are more convenient to cooperate. Fix in order to treat the position of pulling out nail electricity core through setting up fixed knot structure, guarantee to pull out the stability of nail in-process treating to pull out nail electricity core, the extraction of the glue nail of being convenient for.

In this embodiment, the force application structure is a linear driving structure, and the linear driving structure can be used for driving the nail pulling mechanism to move vertically. The linear driving structure can be a cylinder, an electric cylinder, a hydraulic cylinder, a linear motor and the like.

Of course, the force application structure may be another structure capable of driving the nail pulling mechanism to move.

In this embodiment, the securing structure is a clamping tray. The battery cell to be nailed is placed on the clamping tray, and the bottom of the battery cell to be nailed is clamped by the clamping tray. When pulling out the nail, through the clamp force of pressing from both sides tight tray and the self gravity of waiting to pull out nail electricity core, the rigidity of waiting to pull out nail electricity core is guaranteed to the rigidity of waiting to pull out nail electricity core.

Of course, the fixing structure may also be other structures capable of fixing the position of the battery cell to be nailed, other clamping structures, or a pressing structure for pressing the battery cell to be nailed.

When the nail pulling mechanism of the embodiment is used for pulling nails, firstly, an electric core to be nailed is placed on the clamping tray, and the electric core to be nailed is clamped and fixed by the clamping tray; then, the force application structure drives the nail pulling mechanism to move downwards, so that the clamping head 10 is sleeved outside the rubber nails, the rubber nails are used for plugging the openings 12 of the clamping head 10 to form a sealed space, and the gas in the sealed space is pumped out by the gas through and exhaust structure 20 to form negative pressure so as to adsorb and fix the rubber nails; and finally, the force application structure drives the nail pulling mechanism to move upwards, and the glue nail is separated from the battery cell under the action of the clamping force of the clamping tray and the self gravity of the battery cell to be pulled out, so that the pulling out of the glue nail is realized. After the glue nail is pulled out, the air is ventilated into the sealed space through the air vent structure 20, the pressure inside the clamping head 10 is increased, and the glue nail can be smoothly separated from the clamping head 10.

According to the above description, the present patent application has the following advantages:

1. the inside of the clamping head is in interference fit with the rubber nails to form a sealed space, and gas in the sealed space is pumped out through the gas through-exhaust structure to form negative pressure so as to clamp the rubber nails, so that the problem that the rubber nails are not easy to clamp due to size errors and position errors of the rubber nails is solved, the success rate of nail pulling is improved, and the production progress is further improved;

2. after the glue nail is pulled out, the air is ventilated into the sealed space by utilizing the air ventilation structure, so that the glue nail is conveniently separated from the clamping head;

3. through pulling out nail mechanism, application of force structure and fixed knot structure and mutually supporting, be convenient for extract of rubber nail to, the stability of electric core when guaranteeing that the rubber nail is extracted.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A nail pulling mechanism, comprising:

the clamping head (10) is internally provided with a hollow cavity (11), an opening (12) suitable for a glue nail to be inserted is formed in the clamping head (10), and the opening (12) can be sealed by the glue nail;

the gas through-exhaust structure (20) is communicated with the hollow cavity (11), and the gas through-exhaust structure (20) has an air exhaust state for exhausting gas in the hollow cavity (11) and a ventilation state for introducing gas into the hollow cavity (11).

2. The nail pulling mechanism according to claim 1, wherein the clamping head (10) is a cylindrical structure, the lower end of the cylindrical structure is provided with the opening (12), and the top of the cylindrical structure is communicated with the gas through exhaust structure (20).

3. The nail pulling mechanism according to claim 1 or 2, characterized in that the clamping head (10) is in communication with the gas venting structure (20) through a connecting line (30).

4. The nail pulling mechanism according to claim 1 or 2, characterized in that the gas venting structure (20) is an air pump.

5. The nail pulling mechanism according to claim 1 or 2, characterized in that the gas vent structure (20) comprises a vent structure and a suction structure respectively communicating with the holding head (10).

6. A nail pulling device, characterized by comprising the nail pulling mechanism according to any one of claims 1-5.

7. The nail pulling device according to claim 6, further comprising a force applying structure, wherein the force applying structure is connected with the nail pulling mechanism, and the force applying structure can apply force to the nail pulling mechanism to connect the clamping head (10) with the glue nail and pull out the glue nail after the clamping head (10) is connected with the glue nail.

8. The nail pulling apparatus of claim 7, wherein the force applying structure is a linear driving structure adapted to drive the nail pulling mechanism to move vertically.

9. The nail pulling device according to claim 6, further comprising a fixing structure adapted to be connected to a battery cell to be pulled out, so as to fix a position of the battery cell to be pulled out.

10. The nail pulling apparatus of claim 9, wherein the securing structure is a clamping tray.