Washing machine bottom reinforcement gripping jig

Abstract

The utility model relates to a washing machine bottom reinforcement gripping fixture, including base and the magnetic force control mechanism and position keeping mechanism of installation on base, the magnetic force control mechanism includes driving part and permanent magnet, driving part along vertical direction location, permanent magnet drive through driving part, position keeping mechanism set up in permanent magnet's movement path, driving part drives permanent magnet close to work piece and carries out adsorption to work piece, position keeping mechanism is used for work piece operation to the default position, blocks work piece. The utility model's advantage is: high reliability, long life: adopt permanent magnet as adsorption source, fundamentally avoided the problem that electromagnet burns because of the heating of electrification, has improved the service life and work reliability of fixture significantly, has reduced equipment failure rate and maintenance cost.

Description

Technical Field

[0001] This utility model relates to a gripping fixture for the bottom reinforcement of a washing machine, belonging to the field of washing machine processing. Background Technology

[0002] On automated sheet metal production lines for household appliances such as washing machines, the gripping and handling of bottom reinforcement components (also known as base plates) is one of the key steps in achieving automated assembly. Since this workpiece is typically made of carbon steel and has a unique structural shape, magnetic adsorption is a commonly used technique for gripping it.

[0003] Currently, the gripping fixtures widely used in the industry mainly rely on electromagnets as the adsorption source. Electromagnets generate a magnetic field when energized, thereby attracting workpieces; when the power is turned off, the magnetic field disappears, releasing the workpiece. However, in practical applications, this technical solution has significant drawbacks: the continuous energization of the electromagnet during operation easily generates a large amount of heat, causing overheating of the electromagnet itself and the control circuitry, leading to burnout and a short service life. This not only increases equipment maintenance costs but also affects the continuity and stability of the production line.

[0004] Therefore, there is an urgent need for a new type of gripping fixture that can retain the advantages of magnetic adsorption while fundamentally overcoming the problems of short lifespan and poor reliability of electromagnets, so as to meet the needs of high-efficiency and high-stability automated production. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a gripping fixture for the bottom reinforcement of a washing machine. The technical solution of this utility model is as follows: A gripping fixture for a bottom reinforcement of a washing machine includes a base and a magnetic control mechanism and a position holding mechanism mounted on the base. The magnetic control mechanism includes a driving component and a permanent magnet. The driving component is arranged vertically, and the permanent magnet is driven by the driving component. The position holding mechanism is arranged on the movement path of the permanent magnet. The driving component drives the permanent magnet to approach the workpiece and attract the workpiece. The position holding mechanism is used to block the workpiece when it moves to a preset position.

[0006] The driving component is a cylinder, and the permanent magnet is connected to the end of the piston rod of the cylinder.

[0007] The position holding mechanism includes baffles, and two baffles are symmetrically arranged on the base.

[0008] Each of the baffles has a 7-shaped cross-section, and the horizontal portion of the baffle extends above the workpiece.

[0009] The permanent magnet is fixedly connected to the piston rod of the cylinder via a detachable connector.

[0010] The permanent magnet is a magnet made of rare earth permanent magnet material.

[0011] It also includes sensors mounted on the base for detecting the position of the workpiece; both the sensors and the cylinder are connected to the control panel.

[0012] The base is provided with mounting holes or mounting surfaces for connecting to the equipment.

[0013] The advantages of this utility model are: 1. High reliability and long lifespan: Using permanent magnets as the adsorption source fundamentally avoids the problem of electromagnets burning out due to heat generation, significantly improving the service life and operational reliability of the fixture, and reducing equipment failure rate and maintenance costs.

[0014] 2. Simple structure and convenient control: The magnetic force is controlled by driving the permanent magnet to move linearly through the cylinder. The structure is simple and the operation is reliable. There is no need for a complicated electrical control system. The response speed is fast and it is easy to realize automated integration.

[0015] 3. Energy saving and environmental protection: Permanent magnets can maintain strong magnetism without being energized, and only consume a very small amount of air source energy when the cylinder is actuated. Compared with the working method of electromagnets that are constantly energized, it has a significant energy saving effect.

[0016] 4. Strong applicability and good versatility: This fixture is not only suitable for gripping the bottom reinforcement of washing machines, but can also be widely used for the handling and positioning of other sheet metal magnetic workpieces, and has good industry promotion value. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the main structure of the permanent magnet adsorbing the workpiece according to this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0020] See Figure 1 and Figure 2This utility model relates to a gripping fixture for a bottom reinforcement of a washing machine, including a base 1 and a magnetic control mechanism and a position holding mechanism mounted on the base 1. The magnetic control mechanism includes a driving component 3 and a permanent magnet 4. The driving component 3 is arranged in a vertical direction, and the permanent magnet 4 is driven by the driving component 3. The position holding mechanism is arranged on the movement path of the permanent magnet 4. The driving component 3 drives the permanent magnet to approach the workpiece and attract the workpiece 5. The position holding mechanism is used to block the workpiece when it moves to a preset position.

[0021] By using permanent magnets as the adsorption source, the problem of electromagnets burning out due to heat generated by electricity is fundamentally avoided, significantly improving the service life and operational reliability of the fixture, and reducing equipment failure rate and maintenance costs.

[0022] By driving the permanent magnet to move linearly with a cylinder, precise control of the magnetic field is achieved; combined with the mechanical blocking effect of the position holding mechanism (such as a baffle), the workpiece is accurately positioned and without displacement when released, thus improving placement accuracy and operational stability.

[0023] The overall structure is compact, and the cylinder-driven method provides direct action and fast response. It does not require complex circuit control logic, making it easy to integrate into automated production lines and simplifying maintenance and debugging.

[0024] The permanent magnet does not require continuous power supply and consumes very little air only when the cylinder is in motion, resulting in significant energy savings. This structure is not only suitable for washing machine base plates, but can also be extended to the gripping and handling of other sheet metal magnetic workpieces, making it highly versatile and valuable for industry promotion.

[0025] The driving component 3 is a cylinder, and the permanent magnet 4 is connected to the end of the piston rod of the cylinder.

[0026] As a mature power component, the cylinder's piston rod outputs linear motion, which is completely consistent with the linear motion trajectory required by the permanent magnet to "approach / move away" from the workpiece. The power transmission path is short and there is no intermediate conversion mechanism. It has good structural rigidity and reliable motion.

[0027] By precisely controlling the cylinder's stroke, the final distance between the permanent magnet and the workpiece can be controlled. This allows the permanent magnet to disengage from the workpiece and be pulled to a safe distance when the workpiece needs to be released, thus completely eliminating the influence of residual magnetism and ensuring that the workpiece can be reliably and without delay.

[0028] The position holding mechanism includes baffles 2, and two baffles 2 are symmetrically arranged on the base.

[0029] The two symmetrically arranged baffles provide mechanical obstruction from both sides of the workpiece, which can effectively prevent the workpiece from shifting, tilting or rotating laterally due to inertia or external force during the release process, ensuring that the workpiece is accurately released and positioned in the preset position, thus improving the stability and accuracy of placement.

[0030] The symmetrical structure ensures that the blocking force is evenly distributed on both sides of the workpiece, avoiding excessive local stress and uneven wear on the baffle or workpiece that may be caused by unilateral force, thus extending the service life and ensuring the smoothness of operation.

[0031] The space between the two baffles naturally forms a guide groove, which can initially guide and correct the workpiece during the gripping and moving process, making it easier and more accurate to enter the target placement position, thus reducing the positioning accuracy requirements of the upper robotic arm.

[0032] Each of the baffles 2 has a cross-section in the shape of a number 7, and the horizontal portion of the baffle extends above the workpiece.

[0033] The permanent magnet is fixedly connected to the piston rod of the cylinder via a detachable connector. The permanent magnet is installed at the end of the piston rod in a detachable manner (such as a threaded connection). When the magnetic force of the permanent magnet weakens due to long-term use or when it is necessary to change the magnetic force to adapt to different workpieces, it can be easily disassembled and replaced, greatly reducing maintenance costs and time.

[0034] The permanent magnet 4 is a magnet made of rare earth permanent magnet material.

[0035] It also includes a sensor mounted on the base 1 for detecting the position of the workpiece; the sensor and the cylinder are both connected to the control panel.

[0036] The base is provided with mounting holes or mounting surfaces for connecting to the equipment.

[0037] The working principle of this utility model is as follows: 1. Initial standby state: This utility model is fixedly installed on a robotic arm or automated equipment through the mounting holes or mounting surface on the base 1. At this time, the drive cylinder 3 is in the retracted state, driving the permanent magnet 4 to rise to a high position away from the workpiece, and is in standby state.

[0038] 2. Workpiece Grabbing: The robotic arm moves the fixture directly above the workpiece 5 to be gripped and lowers it, allowing the workpiece to enter the space between the two baffles 2. Subsequently, the control panel instructs the piston rod of the cylinder 3 to extend, pushing the permanent magnet 4 vertically downwards until it contacts the surface of the workpiece 5. The permanent magnet 4, made of rare-earth permanent magnet material, attracts and holds the workpiece.

[0039] 3. Workpiece handling: After secure gripping, cylinder 3 remains extended. The robotic arm lifts and moves the entire fixture and the gripped workpiece 5 to the target workstation.

[0040] 4. Release and Precise Placement: After the robotic arm transports and precisely positions the workpiece above the target placement location, the control panel controls the piston rod of cylinder 3 to retract, causing the permanent magnet 4 and the workpiece to move upwards. The symmetrically arranged "7"-shaped baffles 2, with their horizontal portions positioned precisely above the workpiece, form a mechanical obstruction, limiting the workpiece's tendency to move upwards with the permanent magnet. The workpiece is blocked by the upper baffle 2, thus being forced to separate from the permanent magnet and stably and accurately placed in the preset position, achieving displacement-free placement.

[0041] 5. Reset Cycle: After workpiece 5 is released, cylinder 3 fully retracts, returning to its initial state. The next work cycle begins.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A gripping fixture for the bottom reinforcement of a washing machine, characterized in that, Including base and installation The base includes a magnetic control mechanism and a position holding mechanism. The magnetic control mechanism includes a driving component and a permanent magnet. The driving component is arranged vertically, and the permanent magnet is driven by the driving component. The position holding mechanism is arranged on the movement path of the permanent magnet. The driving component drives the permanent magnet to approach the workpiece and attract the workpiece. The position holding mechanism is used to block the workpiece when it moves to a preset position.

2. The washing machine bottom reinforcement gripping fixture according to claim 1, characterized in that, The driving component is a cylinder, and the permanent magnet is connected to the end of the piston rod of the cylinder.

3. The washing machine bottom reinforcement gripping fixture according to claim 1 or 2, characterized in that, The position holding mechanism includes baffles, and two baffles are symmetrically arranged on the base.

4. The washing machine bottom reinforcement gripping fixture according to claim 3, characterized in that, Each of the baffles has a 7-shaped cross-section, and the horizontal portion of the baffle extends above the workpiece.

5. The washing machine bottom reinforcement gripping fixture according to claim 2, characterized in that, The permanent magnet is fixedly connected to the piston rod of the cylinder via a detachable connector.

6. The washing machine bottom reinforcement gripping fixture according to claim 1, characterized in that, The permanent magnet is a magnet made of rare earth permanent magnet material.

7. The washing machine bottom reinforcement gripping fixture according to claim 2, characterized in that, It also includes sensors mounted on the base for detecting the position of the workpiece; both the sensors and the cylinder are connected to the control panel.

8. The washing machine bottom reinforcement gripping fixture according to claim 1, characterized in that, The base is provided with mounting holes or mounting surfaces for connecting to the equipment.

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