Adsorption type grabbing equipment

By using an adsorption-type gripping device, filter cartridges can be replaced without disassembly, solving the problems of long filter cartridge replacement time, equipment damage, and operator safety risks in existing technologies, thus improving production efficiency and safety.

CN224169812UActive Publication Date: 2026-04-28BMW BRILLIANCE AUTOMOTIVE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BMW BRILLIANCE AUTOMOTIVE
Filing Date
2025-05-20
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In the existing technology, replacing the filter element of the wax injection robot requires disassembling the filtration equipment, which leads to long downtime, easy damage to the filter element, leakage of liquid wax and risk of injury to operators, and increases production costs.

Method used

The device employs an adsorption-type gripping mechanism, utilizing electromagnetic and gripping mechanisms to achieve filter element replacement without disassembly. The filter element is retrieved and placed from deep within the device via electromagnetic adsorption and gripping.

Benefits of technology

It shortens filter replacement time, reduces the risk of equipment damage and liquid wax leakage, protects operator safety, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an adsorption type grabbing device (2). The adsorption type grabbing device at least comprises an elongated main body (21) and an electromagnetic mechanism assembled on the main body; the electromagnetic mechanism comprises an adsorption device (22) for taking and placing the metal part through an electromagnetic adsorption effect, a power supply (25) for supplying electric energy to the adsorption device and a switch (24) for controlling the power supply, and the adsorption device (22) can be fixed to the lower end of the main body (21) in different orientations; and the switch (24) is mounted close to the upper end of the main body (21) and is used for controlling the adsorption device (22) to be turned on or turned off by controlling the power supply (25). According to the equipment disclosed by the invention, not only can the downtime of the wax injection robot caused by filter element maintenance be obviously shortened, but also the damage risk of the filter element in the taking and placing process can be reduced, meanwhile, an operator is protected from being hurt by liquid wax, and the maintenance operation cost is greatly reduced.
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Description

Technical Field

[0001] This disclosure generally relates to the technical field of mechanical manufacturing. More particularly, this disclosure relates to a gripping device, and more particularly to an adsorption gripping device. Background Technology

[0002] With the development of the automotive manufacturing industry, wax injection robots are widely used on production lines, such as for injecting wax into car body cavities to enhance the car's rust and corrosion resistance. Wax injection robots are typically equipped with liquid wax filtration equipment. During operation, molten wax is filtered through the filtration equipment and then pumped to the robot. The filter element of the filtration equipment requires regular maintenance, such as cleaning or replacement, to ensure the quality of the liquid wax supplied to the wax injection robot.

[0003] Filter cartridges in filtration equipment are typically located deep within the liquid wax, near the lower pump outlet. In existing technology, replacing the filter cartridge requires disconnecting the filtration equipment from the pump, emptying the liquid wax from the filtration equipment, and partially or completely disassembling the cavity containing the liquid wax and filter cartridge before manually accessing the cartridge for removal and installation. After the filter cartridge is returned to the filtration equipment, the equipment must be reassembled and tested. The existing filter cartridge replacement process results in prolonged downtime for the wax-filling robot, for example, up to 6-8 hours; the filter cartridge is at risk of collision or falling, and the liquid wax is prone to leakage and splashing, causing waste, environmental pollution, and increased production costs; the liquid wax poses a risk of burns to operators and is also a toxic and harmful substance. Frequent disassembly of the equipment also accelerates equipment aging and increases the failure rate. Utility Model Content

[0004] The purpose of this disclosure is to solve one or more of the problems described above and others, and to achieve additional advantages.

[0005] This disclosure discloses an adsorption gripping device, characterized in that the adsorption gripping device includes at least an elongated main body and an electromagnetic mechanism mounted on the main body; the electromagnetic mechanism includes an adsorption device for picking up and placing metal parts by electromagnetic adsorption, a power supply for supplying electrical energy to the adsorption device, and a switch for controlling the power supply; the adsorption device can be fixed to the lower end of the main body in different orientations; the switch is installed near the upper end of the main body and is used to control the start or stop of the adsorption device by controlling the power supply.

[0006] According to one embodiment of this disclosure, the adsorption device is fixed to the lower end of the body by providing a plurality of oriented connecting bases.

[0007] According to one embodiment of this disclosure, the connecting base has multiple connecting slots in different directions, and the adsorption device is fixed in one of the connecting slots.

[0008] According to one embodiment of this disclosure, the connecting base has a connector that can change orientation relative to the body, such that the adsorption device fixed to the connector can change orientation relative to the body.

[0009] According to one embodiment of this disclosure, the adsorption gripping device further includes a gripping mechanism mounted on the main body, the gripping mechanism being coaxially mounted with the adsorption device at the lower end of the main body, the gripping mechanism being configured to grip the metal component from the bottom or side of the metal component.

[0010] According to one embodiment of this disclosure, the gripping mechanism includes three claws adapted to grip the metal component from the bottom.

[0011] According to one embodiment of this disclosure, the gripping mechanism includes two C-shaped grippers adapted to grip the metal component from two opposite sides.

[0012] According to one embodiment of this disclosure, the adsorption gripping device includes a handle disposed at the upper end of the body, the handle allowing an operator to guide the movement of the adsorption gripping device.

[0013] According to one embodiment of this disclosure, the adsorption gripping device includes a linkage for controlling the opening and closing of the gripping mechanism, the linkage being arranged along the body between the handle and the gripping mechanism.

[0014] According to one embodiment of this disclosure, the handle includes a lifting rod that controls the movement of a linkage device arranged along the body between the handle and the gripping mechanism, thereby controlling the opening and closing of the gripping mechanism.

[0015] According to one embodiment of this disclosure, the switch is configured as an adjustable switch for adjusting the strength of the magnetic attraction force of the adsorption device.

[0016] According to one embodiment of this disclosure, the body is configured to be stretchable in length.

[0017] According to one embodiment of this disclosure, the adsorption gripping device further includes a protective cover, which is detachably mounted on the main body above the adsorption device.

[0018] It should be noted that aspects of this disclosure described with respect to one embodiment can be included in other different embodiments, although these other different embodiments are not specifically described. In other words, features of all embodiments and / or any embodiments can be combined in any manner and / or combination, as long as they do not contradict each other.

[0019] The equipment disclosed herein can significantly shorten the downtime of the wax injection robot caused by filter element maintenance, reduce the risk of filter element damage during handling, protect operators from liquid wax, and substantially reduce maintenance costs. The equipment is easy to operate and adjust, and is widely applicable to other situations involving handling metal parts from deep within a device or from toxic or hazardous materials, including but not limited to the handling and replacement of filter elements or other metal spare parts that are difficult to remove from inside equipment involving wax, paint, hydraulics, or gases. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of this disclosure, some specific embodiments given as examples will be described below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of a filtration device;

[0022] Figure 2 This is a schematic diagram of an embodiment of an adsorption-type gripping device conforming to this disclosure.

[0023] It should be understood that the same reference numerals denote the same elements in all the accompanying drawings. For clarity, the dimensions of some features may be altered and they may not be drawn to scale. Detailed Implementation

[0024] The present disclosure will now be described with reference to the accompanying drawings. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure more complete and to fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments.

[0025] It should be understood that the terminology used in this specification is for describing specific embodiments only and is not intended to limit this disclosure. All terms used in this specification (including technical and scientific terms) have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail.

[0026] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.

[0027] When a component is described in the specification as being "on", "attached" to, "connected" to, "joined" to, or "in contact" with another component, the component may be directly located on, attached to, connected to, joined to, or in contact with the other component, or there may be an intermediate component present.

[0028] In the specification, spatial relation terms such as "above," "below," "front," "back," "top," and "bottom" describe the relationship between one feature and another in the accompanying drawings. It should be understood that spatial relation terms include not only the orientation shown in the drawings but also the different orientations of the device during use or operation. For example, when the device in the drawings is inverted, a feature previously described as "below" other features can now be described as "above" other features. The device can also be oriented in other ways (rotated 90 degrees or in other orientations), in which case the relative spatial relationships will be interpreted accordingly.

[0029] In particular, the spatial relationship terms such as "front," "back," "left," "right," "inner," and "outer" used in this disclosure refer to the direction when the equipment is in normal use.

[0030] First refer to Figure 1 Taking the liquid wax filtration device 1 as an example, the structure of some devices that can use the adsorption gripping device according to some embodiments of the present disclosure is described. Figure 1 A filtration device 1 for filtering liquid wax is schematically shown for a wax injection robot. The filtration device 1 may include a cavity 10. A filter element 11 for filtering molten liquid wax may be disposed inside the cavity. The cavity 10 may have an upper opening 12 and a lower opening 13. The upper opening may be located at the top or upper side of the cavity. The upper opening can be used to inject liquid wax. The lower opening 13 may be located at the bottom or lower side of the cavity. In some cases, the filter element 11 is configured to be installed near the lower opening, such that the liquid wax is first filtered by the filter element and then discharged from the lower opening. The lower opening may be connected to a pump 15 via a conduit 14. The pump 15 may pump the liquid wax discharged from the lower opening of the filtration device to the wax injection robot.

[0031] The filter element of the filtration equipment needs to be removed from the filtration equipment periodically for cleaning or replacement. However, as mentioned above, since the filter element 11 is usually located near the lower opening 13, which is much lower than the upper opening 12 of the filtration equipment 1, and since there are no impact points on the surface of the filter element 11, both the upper opening 12 and the lower opening 13 of the filtration equipment 1 need to be opened each time the filter element 11 is replaced. Considering that the lower opening 12 of the filtration equipment 1 is connected to the pipeline 14 and the pump 15, the pipeline 14, pump 15, etc. of the filtration equipment 1 need to be completely dismantled each time the filter element is replaced, which takes a lot of time, for example, 6-8 hours. In addition, the disassembly of the filtration equipment 1 is required every time the filter element 11 is replaced, which not only accelerates the aging of the equipment, but also increases material costs due to wax leakage during the disassembly process, the potential for wax splatter to burn workers' skin, and the release of irritating gases (containing benzene, xylene, and other carcinogens) from the leaked wax, thus affecting the health of workers.

[0032] Therefore, this disclosure proposes an adsorption-type defect-removing device 2 for replacing the filter element 11 without disassembling the filter device 1.

[0033] The following reference Figure 2 This describes some embodiments of the adsorption gripping device 2 according to the present disclosure.

[0034] The adsorption gripping device 2 can be used to retrieve or place metal or metal-part components from deep within a device. The following describes some embodiments of the adsorption gripping device 2 according to this disclosure, using an adsorption gripping device for retrieving or placing a filter element 11 from the cavity of a liquid wax filtration device 1 as an example.

[0035] The adsorption gripping device 2 may have at least an elongated body 21 (e.g., a slender rod-shaped body) and an electromagnetic mechanism, a gripping mechanism 20 and a handle 23 mounted on the body 21.

[0036] The electromagnetic mechanism may include an adsorption device 22, a switch 24, and a power supply 25.

[0037] The adsorption device 22 can adsorb the metal filter element or the metal part on the filter element by magnetic attraction, thereby attaching the filter element 11 to the adsorption device 22.

[0038] The adsorption device 22 can be directly installed at the lower end of the main body 21. The orientation of the adsorption device 22 can be set according to the positioning of the filter element 11 to be adsorbed within the cavity 10 of the filter device 1. In one embodiment of this disclosure, the adsorption device 22 can be fixed downwards at the lower end of the main body 21 (e.g., via a pin connector, screw and nut connector, or threaded fastener), which facilitates the adsorption of the filter element 11 arranged at the bottom of the cavity 10. In other embodiments, the adsorption device 22 can be fixed sideways at the lower end of the main body 21, which facilitates the adsorption of the filter element 11 arranged on the lower side of the cavity 10.

[0039] The adsorption device 22 can also be fixed to the lower end of the main body 21 by providing multiple oriented connecting bases. In one embodiment of this disclosure, the connecting base installed at the lower end of the main body 21 has multiple connecting slots with different orientations, and the adsorption device 22 can be fixed in one of the connecting slots (e.g., by means of a pin connector, screw and nut connector, or threaded fastener). In another embodiment of this disclosure, the connecting base installed at the lower end of the main body 21 has a connector that can change its orientation relative to the main body (e.g., by means of a locking knob, ball lock, ratchet mechanism, etc.), so that the adsorption device 22 fixed to the connector can change its orientation relative to the main body.

[0040] Switch 24 and power supply 25 are installed on the upper part of the main body 21.

[0041] A power source can supply electrical energy to the adsorption device 22. Switch 24 controls the opening and closing of the power source 25, thereby enabling the adsorption device 22 to be started, stopped, and adjusted. When the adsorption device 22 is started, it has a magnetic attraction force, thus adsorbing the filter element 11. When the adsorption device 22 is closed, it loses its magnetic attraction force, thus releasing the adsorbed filter element 11. The strength of the magnetic attraction force of the adsorption device 22 can be varied by changing the power supply strength of the power source 25. This allows for different levels of adsorption force based on the weight of the filter element 11 and the pressure and resistance exerted on the filter element by the molten liquid wax during its movement.

[0042] In one embodiment of this disclosure, switch 24 may be a button or a rotary switch.

[0043] Handle 23 can be installed on the upper end of the main body 21. The handle allows the operator to grip it, thereby guiding the adsorption gripping device 2 to make vertical movements toward the filter element and lateral movements to transport the filter element.

[0044] When using the adsorption gripping device 2 according to this disclosure, first select the orientation of the adsorption device according to the orientation of the filter element to be picked up or placed. For example, the adsorption device is fixed downwards at the lower end of the main body 21, which facilitates the adsorption of the filter element arranged at the bottom of the cavity 10. The operator can grasp the handle, guide the adsorption gripping device 2 into the cavity 10 through the upper opening 12 of the filter device, and move it downwards towards the filter element, and then turn on the power to start the adsorption device. When the required adsorption power is small, for example, when the maximum suction force is less than or equal to 15 kg, the power supply can be composed of only multiple 1.5V batteries. After the adsorption device is powered on, it has magnetic attraction, so it will be adsorbed onto the upper part of the filter element. The operator grasps the handle, lifts the adsorption gripping device 2, overcomes the pressure and resistance of the liquid wax on the filter element, until the adsorbed filter element is lifted out from the upper opening 12 and moved to the cleaning and maintenance position. By turning off the switch, the power is disconnected, the adsorption device loses its magnetic attraction, and thus the filter element is unloaded. When reinstalling the filter element, the above process is reversed.

[0045] The adsorption device 22 may further include a gripping mechanism 20. The gripping mechanism 20 may be arranged coaxially with the adsorption device at the lower end of the body 21. In one embodiment of this disclosure, the gripping mechanism may be mounted on the same connecting base as the adsorption device. This allows the gripping mechanism and the adsorption device to have the same orientation.

[0046] The gripping mechanism may include at least one gripping element. The gripping element can mechanically grip the filter element, for example, from the side or bottom of the filter element. In one embodiment of this disclosure, the gripping mechanism may have three claws, each claw having a hook at its end, adapted to grip the filter element from the bottom. In one embodiment of this disclosure, the length of the claws may be between 100-200 mm. In another embodiment of this disclosure, the gripping mechanism may have two C-shaped grippers adapted to grip the filter element from two opposite sides of the filter element. The gripping mechanism can assist the adsorption device in holding the filter element on the adsorption device and can prevent the filter element from accidentally falling off in the event of adsorption device failure.

[0047] The handle may include a lifting lever 26 for controlling a linkage device. The linkage device may be arranged along the body between the handle and the gripping element. Manipulating the lifting lever 26 can move the linkage device up and down along the body, thereby controlling the opening and closing of the gripping element. In one embodiment of this disclosure, the lifting lever can pull the gripping element away from the adsorption device 22, which allows the adsorption device 22 to operate in narrower spaces, without being limited by the size of the coaxially arranged gripping element.

[0048] In one embodiment of this disclosure, the body 21 may be a single rod of fixed length. In other embodiments, the body 21 may be a telescopic rod, allowing adjustment of the length of the adsorption gripping device according to the position of the filter cartridge to be picked up or placed. In one embodiment of this disclosure, the length of the telescopic rod may be between 400 and 1000 mm.

[0049] According to one embodiment of this disclosure, when a filter element is retrieved from a filtration device, the upper opening of the filtration device is opened, the main body is adjusted to a suitable length, the adsorption device is inserted into the filtration device until it is aligned with the filter element, and the switch is turned on to allow the adsorption device to hold the filter element. After the adsorption device removes the filter element from the filtration device, the three claws of the gripping element firmly clamp the filter element, assisting the adsorption device in holding the filter element. In one embodiment, the adsorption device can be turned off while the gripping element is holding the filter element, and only the gripping element holds the filter element. When a new filter element is placed into the filtration device, the adsorption device holds the filter element and enters through the upper opening of the filtration device until the filter element is in place in the filtration device. The control switch then releases the adsorption device from the filter element, and the filter element replacement is completed.

[0050] In other embodiments, the adsorption gripping device 2 may also include a splash guard. The splash guard is detachably mounted to the main body and is used to shield against potentially splashed, hot, and harmful liquid wax during filter cartridge handling. The splash guard helps protect the operator's safety. The splash guard can be made of plexiglass.

[0051] Although this disclosure has been presented above with reference to preferred embodiments, it is not intended to limit this disclosure. Any person skilled in the art can make possible changes and modifications to the technical solutions of this disclosure by utilizing the methods and techniques disclosed above without departing from the spirit and scope of this disclosure. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this disclosure without departing from the content of the technical solutions of this disclosure shall fall within the protection scope of the technical solutions of this disclosure.

Claims

1. An adsorption-type gripping device (2), characterized in that, The adsorption gripping device includes at least an elongated body (21) and an electromagnetic mechanism mounted on the body; The electromagnetic mechanism includes an adsorption device (22) for picking up and placing metal parts by electromagnetic adsorption, a power supply (25) for supplying electrical energy to the adsorption device, and a switch (24) for controlling the power supply. The adsorption device (22) can be fixed to the lower end of the main body (21) in different orientations. The switch (24) is mounted near the upper end of the main body (21) and is used to control the start or stop of the adsorption device (22) by controlling the power supply (25).

2. The adsorption-type gripping device according to claim 1, characterized in that, The adsorption device (22) is fixed to the lower end of the main body (21) by providing multiple oriented connecting bases.

3. The adsorption-type gripping device according to claim 2, characterized in that, The connecting base has multiple connecting slots in different directions, and the adsorption device is fixed in one of the connecting slots.

4. The adsorption-type gripping device according to claim 2, characterized in that, The connecting base has a connector that can change orientation relative to the main body, so that the adsorption device (22) fixed on the connector can change orientation relative to the main body.

5. The adsorption-type gripping device according to any one of claims 1 to 4, characterized in that, The adsorption gripping device further includes a gripping mechanism (20) mounted on the main body. The gripping mechanism (20) is coaxially mounted with the adsorption device (22) at the lower end of the main body (21). The gripping mechanism is configured to grip the metal part from the bottom or side.

6. The adsorption-type gripping device according to claim 5, characterized in that, The gripping mechanism includes three claws adapted to grip the metal component from the bottom.

7. The adsorption-type gripping device according to claim 5, characterized in that, The gripping mechanism includes two C-shaped grippers adapted to grip the metal component from two opposite sides.

8. The adsorption-type gripping device according to claim 5, characterized in that, The adsorption gripping device includes a handle (23) disposed at the upper end of the main body, the handle allowing the operator to guide the movement of the adsorption gripping device.

9. The adsorption-type gripping device according to claim 5, characterized in that, The adsorption gripping device includes a linkage for controlling the opening and closing of the gripping mechanism, the linkage being arranged along the main body between the handle and the gripping mechanism.

10. The adsorption-type gripping device according to claim 9, characterized in that, The handle includes a lifting rod (26), which controls the movement of the linkage device, thereby controlling the opening and closing of the gripping mechanism.

11. The adsorption-type gripping device according to claim 1, characterized in that, The switch (24) is configured as an adjustable switch for adjusting the strength of the magnetic attraction of the adsorption device.

12. The adsorption-type gripping device according to claim 1, characterized in that, The main body is designed to be stretchable in length.

13. The adsorption-type gripping device according to claim 1, characterized in that, The adsorption gripping device also includes a protective cover, which is detachably mounted on the main body above the adsorption device.