CN215625163U

CN215625163U - Clamping device

Info

Publication number: CN215625163U
Application number: CN202120972596.7U
Authority: CN
Inventors: 梁楠; 谢晓波; 王伟
Original assignee: Nanjing Dolly Technology Development Co ltd
Current assignee: Nanjing Dolly Technology Development Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2022-01-25
Anticipated expiration: 2031-05-08

Abstract

The utility model discloses a clamping device, and belongs to the technical field of clamping devices. The method comprises the following steps: the clamping device comprises a connecting piece, a clamping device and a clamping device, wherein the connecting piece is provided with a plurality of clamping units; the method comprises the following steps: the driving piece is arranged on the connecting piece; the clamping jaw assembly is connected to the bottom of the driving piece in a transmission manner; when the clamping unit is clamped, the driving part adjusts the height of the clamping jaw assembly in each clamping unit according to the working requirement, and the adjacent clamping jaw assemblies are in staggered distribution to form an avoiding space. According to the clamping jaw device, a certain height difference exists between the adjacent clamping jaw assemblies, the set height difference forms a space required by work, space avoidance is formed, and when one or a certain specified object to be clamped needs to be clamped, the other adjacent clamping jaw assemblies do not contact or influence other objects to be clamped.

Description

Clamping device

Technical Field

The utility model belongs to the technical field of clamping devices, and particularly relates to a clamping device.

Background

In order to be suitable for a battery production line, patent CN212798576U has disclosed a multifunctional clamping jaw, an overvoltage protection component is arranged on a clamping jaw device, U-shaped photoelectric switches in the overvoltage protection component are mutually independent, and any overvoltage protection mechanism can compress and alarm when being subjected to pressure, so that the system is sensitive in response, and the collision force of a battery is reduced; and install the guide rail at the front side and/or the rear side of installation piece, the guide rail is the side direction installation (not the inside wall or the lateral wall of installation piece), prevents to use the middle clamping jaw and appears outwards inclining, influences the clamp of battery and gets. Through the technology, the stability and the protection of the battery when the battery is clamped are improved.

However, when the above-mentioned clamping jaws are used, at least two sets of clamping assemblies are provided to increase the clamping efficiency, but under a certain specified condition or use requirement, when only one clamping jaw assembly is used or only one battery needs to be clamped, another clamping jaw assembly or several clamping jaw assemblies parallel to the clamping jaw assembly will have a function of obstructing in space, which is specifically represented as follows: contact or collision occurs with the adjacent battery.

SUMMERY OF THE UTILITY MODEL

The utility model provides a clamping device for solving the technical problems in the background technology.

The utility model adopts the following technical scheme: a gripping apparatus, comprising: the clamping device comprises a connecting piece, a clamping device and a clamping device, wherein the connecting piece is provided with a plurality of clamping units; the clamping units have the same structure and comprise:

the driving piece is arranged on the connecting piece;

the clamping jaw assembly is connected to the bottom of the driving piece in a transmission manner; when the clamping unit is clamped, the driving part adjusts the height of the clamping jaw assembly in each clamping unit according to the working requirement, and the adjacent clamping jaw assemblies are in staggered distribution to form an avoiding space.

In a further embodiment, the driving member is a jacking cylinder, and a fixed end of the jacking cylinder is connected to the connecting member.

By adopting the technical scheme: the jacking cylinder is selected as the driving piece, the structure is simple, the operation is easy, the space is compact, and the space utilization rate is improved.

In a further embodiment, the jaw assembly comprises: the connecting plate is in transmission connection with the driving piece; the bottom of the connecting plate is provided with a driving mechanism;

the driving mechanism is set to drive the clamping hands to move relatively to realize inner clamping or outer clamping of the object to be clamped.

In a further embodiment, the gripper comprises:

the mounting block is in transmission connection with the driving end of the driving mechanism; the top of the mounting block is provided with a U-shaped photoelectric switch;

the elastic component is arranged on the mounting block;

the movable clamping block is in transmission connection with the elastic component; the top of the movable clamping block is fixed with an induction sheet;

under the action of external force, the movable clamping block moves upwards, and when the movable clamping block continuously moves upwards, the sensing piece moves into the U-shaped photoelectric switch to trigger alarm.

In a further embodiment, the resilient assembly comprises:

the spring guide rod is inserted in the mounting block;

the limiting cap is fixed at the top end of the spring guide rod and is positioned above the mounting block;

and the spiral spring is sleeved on the spring guide rod and is positioned between the limiting cap and the movable clamping jaw.

In a further embodiment, the gripper further comprises:

a guide rail installed at a front side and/or a rear side of the installation block;

the sliding block is arranged at the position of the movable clamping block corresponding to the guide rail; the guide rail and the sliding block are in interference fit.

In a further embodiment, a resin clamping block is fixed on the inner wall of the movable clamping block, an over stop block is fixed above the resin clamping block, and a polyurethane block is fixed on the inner wall of the resin clamping block.

The utility model has the beneficial effects that: the utility model is improved based on the existing multifunctional clamping jaw, each clamping jaw component is provided with a driving part corresponding to the clamping jaw component, the driving part is used for adjusting the height of the clamping jaw component, a certain height difference exists between the adjacent clamping jaw components, the set height difference forms a space required by work, space avoidance is formed, and when one or a certain specified object to be clamped needs to be clamped, the other adjacent clamping jaw components do not contact or influence other objects to be clamped.

Drawings

Fig. 1 is a schematic structural view of a gripping device.

Fig. 2 is a front view of a gripping device.

Fig. 3 is a schematic structural view of the gripper.

Each of fig. 1 to 3 is labeled as: the clamping device comprises a connecting piece 1, a clamping unit 2, a jacking cylinder 201, a connecting plate 202, an installation block 203, a movable clamping block 204, a U-shaped photoelectric switch 205, an induction sheet 206, a spring guide rod 207, a limiting cap 208, a spiral spring 209, a guide rail 210, a resin clamping block 211, an over stop 212 and a polyurethane block 213.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the utility model.

Prior patent CN212798576U has disclosed a multifunctional clamping jaw, which mainly realizes the stability in the clamping process and increases the protection of the battery by arranging an over-protection component.

The batteries are generally arranged at equal intervals in the arrangement process, so that the space is saved and the space utilization rate is increased, the distance between the adjacent batteries is short, and meanwhile, in order to improve the process efficiency, a plurality of clamping assemblies are generally arranged to clamp the batteries to be clamped simultaneously. However, in a given situation or a given work requirement, one of the batteries needs to be picked up from a stack of batteries, and the use of the gripper has the following disadvantages: when the clamping jaw in the working state is used for clamping the battery required by the work, other clamping jaws adjacent to the clamping jaw can touch other batteries at the same time, and unnecessary touch is caused, and even the battery is damaged.

In order to solve the above problems, the applicant has developed a gripping device comprising: the clamping device comprises a connecting piece 1, a clamping unit 2, a jacking cylinder 201, a connecting plate 202, an installation block 203, a movable clamping block 204, a U-shaped photoelectric switch 205, an induction sheet 206, a spring guide rod 207, a limiting cap 208, a spiral spring 209, a guide rail 210, a resin clamping block 211, an over stop 212 and a polyurethane block 213.

As shown in fig. 1, the connecting member 1 is a mounting plate, and a plurality of groups of gripping units 2 with the same structure are disposed at the bottom of the mounting plate, and the mounting plate is used for connecting with other fixing members, in this embodiment, the fixing members are arms of a robot or trusses.

In this embodiment, the gripping units 2 are two sets, and each set of gripping units 2 includes: the driving air cylinder fixed on the connecting plate 202 is connected with the clamping jaw assembly in a transmission mode, namely when the clamping is performed, the driving air cylinder adjusts the height of the clamping jaw assembly in the corresponding clamping unit 2 according to work requirements, the clamping jaw assemblies are distributed in a staggered mode (namely a certain height difference exists between the adjacent clamping jaw assemblies), and an avoiding space is formed. In this implementation, select for use jacking cylinder 201 as the driving piece, simple structure easily operates, and space is compact simultaneously, has improved space utilization.

In a further embodiment, the jaw assembly comprises: the connecting plate 202 is in transmission connection with a piston rod of the driving cylinder, a driving mechanism is arranged at the bottom of the connecting plate 202, two groups of clamping hands are arranged at the driving end of the driving mechanism, and each group of clamping hands move relatively under the action of the driving mechanism so as to realize inner clamping or outer clamping of an object to be clamped. In this embodiment, the drive mechanism is a jaw cylinder.

In a further embodiment, in order to protect the battery well and avoid damaging the battery when the battery is clamped, the clamping hand comprises: and the two mounting blocks 203 are symmetrically connected to two ends of the clamping jaw cylinder in a transmission way. Referring to fig. 3, the mounting block 203 is an inverted L-shape, the spring guide rod 207 is inserted into the mounting block 203, and in order to prevent the spring guide rod 207 from falling, a limiting cap 208 is fixed on the top of the spring guide rod 207, and the limiting cap 208 is located above the mounting block 203. The movable clamping block 204 is fixed at the end of the spring guide rod 207, and the coil spring 209 is sleeved on the spring guide rod 207 and is positioned between the limiting cap 208 and the movable clamping block 204. The U-shaped photoelectric switch 205 is fixed on the mounting block 203, and the sensing piece 206 is fixed on the movable clamping block 204. Under the action of external force, the movable clamping block 204 moves upwards, and when the movable clamping block continuously moves upwards, the sensing sheet 206 moves into the U-shaped photoelectric switch 205 to trigger an alarm.

Because the movable clamping block 204 has the possibility of moving upwards, in order to ensure that the movable clamping block does not deviate in the moving process, the guide rail 210 is installed on the front side and/or the rear side of the installation block 203, the slide block is installed at the position of the movable clamping block 204 corresponding to the guide rail 210, and the guide rail 210 and the slide block are in interference fit. The guide rail 210 and the slider are not disposed on the inner wall or the outer wall of the mounting block 203, mainly because the movable clamping block 204 is subjected to a force when clamping the battery, and the movable clamping block 204 is easily inclined by the external force if the guide rail 210 is disposed on the inner wall or the outer wall of the mounting block 203. Therefore, the guide rail 210 is installed laterally, and the clamping jaw is prevented from inclining outwards after being used, so that the clamping of the battery is prevented from being influenced.

In order to further reduce the possibility of dropping the clamped battery and avoid the phenomenon of over-clamping, the resin clamping block 211 is fixed on the inner wall of the movable clamping block 204, and the inner side wall of the resin clamping block 211 is fixed with a polyurethane block 213, and the polyurethane block 213 is arranged to buffer and increase the friction force when clamping the battery. The over-position stop 212 is fixed between the resin clamping block 211 and the movable clamping block 204, and is used for preventing the device from clamping a battery in a large area in the descending process, so as to play a limiting role.

The working principle of the utility model is as follows: when a battery is required to be clamped from a row of batteries, one of the jacking cylinders 201 is opened, a piston rod of the jacking cylinder 201 pushes out the corresponding connecting plate 202 and a clamping jaw on the connecting plate 202 downwards, a height difference is generated between the clamping jaw and a clamping jaw assembly in the other clamping unit 2, and when the clamping jaw clamps the corresponding battery, the clamping jaw assemblies in the other clamping unit 2 are located above the battery and are not in contact with the other battery, and collision between the clamping jaw and the other battery is avoided.

The clamping process of the clamping hand is as follows: the jacking cylinder 201 moves the clamp down to the position adjacent to the battery and controls the battery to be correspondingly positioned in the clamping jaw, and the clamping jaw cylinder contracts to enable the clamping block to be in contact with the battery and control the top surface of the battery to be in contact with the over-position stop block 212 to clamp the battery. If in the above process, the gripping device continues to move downwards, the battery pushes the over-position stop 212 upwards due to sufficient contact between the top surface of the battery and the over-position stop 212, so that the clamping blocks fixedly connected with the over-position stop and the movable clamping blocks 204 move upwards along the guide rail 210 under the action of the spring guide rod 207 until the induction sheet 206 moves into the U-shaped photoelectric switch 205, an alarm is triggered, namely, the force is excessive, the clamping device stops moving downwards continuously, the battery is protected, and the battery is prevented from being damaged due to overvoltage.

As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A gripping apparatus, comprising: the clamping device comprises a connecting piece, a clamping device and a clamping device, wherein the connecting piece is provided with a plurality of clamping units;

it is characterized in that the clamping units have the same structure and comprise:

the driving piece is arranged on the connecting piece;

2. Gripping apparatus according to claim 1,

the driving piece is a jacking cylinder, and the fixed end of the jacking cylinder is connected with the connecting piece.

3. Gripping apparatus according to any one of claims 1 or 2,

the jaw assembly includes: the connecting plate is in transmission connection with the driving piece; the bottom of the connecting plate is provided with a driving mechanism;

4. A gripping apparatus according to claim 3,

the tong includes:

the elastic component is arranged on the mounting block;

5. A gripping apparatus according to claim 4,

the elastic assembly includes:

the spring guide rod is inserted in the mounting block;

6. A gripping apparatus according to claim 4,

the tong still includes:

7. A gripping apparatus according to claim 4,

the inner wall of the movable clamping block is fixed with a resin clamping block, an over-position stop block is fixed above the resin clamping block, and a polyurethane block is fixed on the inner wall of the resin clamping block.