CN216900169U

CN216900169U - Self-adaptation neodymium iron boron coating cohesion descending test device

Info

Publication number: CN216900169U
Application number: CN202220208084.8U
Authority: CN
Inventors: 张宝权; 孙广先; 张智翔; 冯海军
Original assignee: Inner Mongolia Suchuang Magnetic Material Co ltd
Current assignee: Inner Mongolia Suchuang Magnetic Material Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-07-05
Anticipated expiration: 2032-01-26

Abstract

The utility model relates to the technical field of neodymium iron boron plating layer binding force test equipment, in particular to a self-adaptive neodymium iron boron plating layer binding force falling test device; the device comprises a falling box for collecting experimental sample blocks, limiting frames oppositely arranged on two sides of the falling box, and a driving unit for driving the falling box to ascend and descend; the sliding frame is matched between the limiting frames in a sliding manner, and the top of each limiting frame is provided with a limiting block for limiting the sliding of the sliding frame; the separation disc is fixed on the lower side of the sliding frame through the extension frame, and the adsorption disc is in sliding fit with the lower side of the sliding frame and is in contact with the upper surface of the separation disc; in the process that the driving unit drives the sliding frame to ascend, the limiting block limits the sliding frame to slide, so that the magnetic suction disc moves upwards to be separated from the suction separation disc; the device can reach predetermined high self-adaptation release after grabbing the experimental sample piece, makes the experimental sample piece can carry out the free fall test automatically.

Description

Self-adaptation neodymium iron boron coating cohesion descending test device

Technical Field

The utility model relates to the technical field of neodymium iron boron plating layer binding force test equipment, in particular to a self-adaptive neodymium iron boron plating layer binding force falling test device.

Background

The application range of the neodymium iron boron magnet material is seriously influenced by many defects of loose and porous surface, strong chemical activity, high possibility of oxidation corrosion and the like; the neodymium-iron-boron magnet mainly comprises three phases, namely a main phase, a neodymium-rich phase and a boron-rich phase, wherein the neodymium-rich phase and the boron-rich phase are generally distributed at a crystal boundary, the neodymium-rich phase is easily oxidized, and the volume fraction of the main phase of the magnet is far greater than that of the neodymium-rich phase and the boron-rich phase, so that the magnet is easy to form the electrochemical local corrosion characteristic of a small anode and a large cathode, and the corrosion can be further accelerated; in addition, the corrosion potential of the neodymium-rich phase is low, and electrochemical corrosion is easy to occur; therefore, the magnet must be protected by surface treatment; at present, the main method for protecting the neodymium iron boron magnet is to carry out surface treatment such as electroplating or coating treatment on the surface of the neodymium iron boron magnet; the key of the surface treatment technology of the neodymium iron boron magnet is a pretreatment process; if the pretreatment process is appropriate, the neodymium iron boron magnet can be applied to various environments after the protective layer is formed on the surface of the neodymium iron boron magnet.

Because of the chemical property of the porous structure of the sintered neodymium iron boron material, after the sintered neodymium iron boron material is treated by using a protection technology, a plating layer binding force test is an important test index, the traditional plating layer binding force test process is carried out by manual operation, a laboratory sample needs to be placed in a hand of a laboratory worker, the sintered neodymium iron boron workpiece after being electroplated is lifted to a certain height by the worker to fall freely, then the workpiece is squat to collect, and then lifted to a certain height to fall freely, and the process needs to be repeated for about 20-200 times (according to the experimental requirements); in the experimental process, the experimenter needs to bend down and stand up continuously, so that the experimenter is very tired, and is very hard and low in efficiency when many experimental samples are available; based on the technical background, the inventor designs a self-adaptive neodymium iron boron plating layer binding force falling test device.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a self-adaptive neodymium iron boron plating binding force falling test device which can pick up an experimental sample block and then self-adaptively release the experimental sample block to a preset height, so that the experimental sample block can automatically carry out free falling body test.

The technical scheme adopted by the utility model is as follows: a self-adaptive neodymium iron boron coating binding force falling test device comprises a falling box for collecting experimental sample blocks, limiting frames oppositely arranged on two sides of the falling box and a driving unit for driving lifting; the sliding frame is matched between the limiting frames in a sliding manner, and the top of each limiting frame is provided with a limiting block for limiting the sliding of the sliding frame; the separation disc is fixed on the lower side of the sliding frame through the extension frame, and the adsorption disc is in sliding fit with the lower side of the sliding frame and is in contact with the upper surface of the separation disc; in the process that the driving unit drives the sliding frame to rise, the limiting block limits the sliding frame to slide, so that the magnetic suction disc moves upwards and is separated from the suction separation disc.

Specifically, a plurality of magnets are embedded in the lower surface of the magnetic suction disc, and the upper surface of the magnetic suction disc is matched with the sliding frame in the axial direction through a sliding shaft; a sliding channel corresponding to the sliding shaft is arranged on the sliding frame, and the sliding shaft penetrates through the sliding channel and is fixed with the driving part; the driving part is fixed with the driving unit, the driving unit pulls the driving part to ascend, and a compression spring penetrates through a sliding shaft between the magnetic suction disc and the sliding frame.

Further, one embodiment of the driving part is a plate-shaped structure, two sliding shafts are oppositely arranged on the upper surface of the magnetic suction disc, and the sliding shafts penetrate through the sliding channel and are fixed with the lower side of the driving part; the other embodiment of the driving part is of an annular structure, a sliding shaft is vertically arranged in the middle of the upper surface of the magnetic suction disc, and the sliding shaft penetrates through a sliding channel to be fixed with the driving part.

Optionally, the natural length of the compression spring may be equal to the distance between the magnetic chuck and the sliding frame; the natural length of the compression spring can be larger than the distance between the magnetic suction disc and the sliding frame.

Specifically, the driving unit is an electric hoist which is horizontally arranged at the upper side end part of the limiting frame through a mounting frame; the limiting frame is fixed with the end part of the mounting frame through the inverted U-shaped reinforcing frame.

The utility model achieves the following beneficial effects: when the magnetic suction disc and the separating disc of the device rise to the preset height, the magnetic suction disc and the separating disc are self-adaptive to release the magnet experiment sample, and the rising and the releasing are synchronously carried out so as to reduce the operation steps of secondary release; the time required for completing one stroke is saved, and certain working efficiency is improved; simultaneously this application separate the dish be motionless state, make magnetic chuck upward movement simultaneously, release the experiment sample piece, separate the dish and be motionless means the experiment sample piece does not have initial velocity, carries out the free fall motion.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic diagram of a limiting structure according to the present invention.

Fig. 3 is a schematic view of the sliding frame structure of the present invention.

Figure 4 is a schematic view of the drop box structure of the present invention.

Fig. 5 is a schematic view of the driving portion structure of the present invention.

FIG. 6 is a schematic view of the position of the stop of the present invention.

In the figure, 1, a drop box; 2. a limiting frame; 3. a base; 4. a carriage; 5. a pulley; 6. a limiting block; 7. a divider disk; 8. a stretching frame; 9. a magnetic chuck; 10. a magnet; 11. a slide shaft; 12. a slide channel; 13. a drive section; 14. a compression spring; 15. an electric hoist; 16. a mounting frame; 17. a reinforcing frame.

Detailed Description

To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.

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; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

At present, the main method for protecting the neodymium iron boron magnet is to carry out surface treatment such as electroplating or coating treatment on the surface of the neodymium iron boron magnet; due to the chemical property of the porous structure of the sintered neodymium-iron-boron material, after the sintered neodymium-iron-boron material is treated by using a protection technology, a plating layer binding force test is an important test index; the traditional process for testing the bonding force of the plating is carried out by manual operation, and experimenters are very hard and have low efficiency when lots are available; the control grabbing unit of the existing experimental device is separated through a push rod, and the grabbing unit releases the experimental sample block through the push rod after reaching a preset implementation height; therefore, one operation stroke needs to be subjected to the processes of grabbing by the grabbing unit, lifting by the grabbing unit, extending and releasing the push rod, retracting the push rod and descending the grabbing unit again for grabbing; that is, when the grasping unit is raised to a predetermined position, a process of releasing by the push rod is also required; such an operation has a long time, and the release process of one batch needs to be repeated for about 20-200 times (according to experimental requirements), so the efficiency is low; as shown in figure 1, the utility model provides a self-adaptive neodymium iron boron plating layer binding force drop test device, which comprises a drop box 1 for collecting experimental sample blocks, wherein the drop box 1 is arranged on a base 3; the two sides of the falling box 1 are oppositely provided with limiting frames 2, the limiting frames 2 are of groove-shaped steel structures, and one sides of the openings are oppositely arranged; two sides of the sliding frame 4 are matched between the limiting frames 2 in a sliding way through pulleys 5, and the tops of the limiting frames 2 are provided with limiting blocks 6 for limiting the pulleys 5; the separating disc 7 is fixed on the lower side of the sliding frame 4 through an extending frame 8, and the separating disc 7 is made of non-metal materials, such as polyvinyl chloride; the separating disc 7 can be a square, a rectangle, a circle and other sections corresponding to the falling box 1, and can extend into the falling box 1; the magnetic chuck 9 is arranged on the upper side of the separating disk 7 and is used for adsorbing the experimental sample block, and the section of the magnetic chuck 9 corresponds to the separating disk 7 and is smaller than the separating disk 7; because the experimental sample block is not magnetized when the binding force of the coating is tested, a plurality of magnets 10 are embedded on the lower surface of the magnetic chuck 9 so as to adsorb the experimental sample block; the upper surface of the magnetic suction disc 9 is matched with the sliding frame 4 through a sliding shaft 11; a sliding channel 12 corresponding to the sliding shaft 11 is arranged on the sliding frame 4, and the sliding shaft 11 passes through the sliding channel 12 and is fixed with a driving part 13; the driving part 13 is fixed with the driving unit, and the driving part 13 is pulled to ascend through the driving unit; a sliding shaft 11 between the magnetic chuck 9 and the sliding frame 4 is provided with a compression spring 14 in a penetrating manner, one embodiment of the compression spring 14 is that the natural length of the compression spring 14 is equal to the distance between the magnetic chuck 9 and the sliding frame 4, at this time, the stiffness coefficient of the compression spring 14 is large enough, no deformation is generated under the action of the magnetic chuck 9, the separating disk 7, the sliding frame 4 and the extending frame 8, and the magnetic chuck 9 and the separating disk 7 are always kept in contact in the ascending process; another embodiment of the compression spring 14 is that the natural length of the compression spring 14 is larger than the distance between the magnetic attraction disc 9 and the sliding frame 4, and the restoring force generated by the compression spring 14 is larger than the gravity of the magnetic attraction disc 9, the separation disc 7, the sliding frame 4, the extension frame 8, etc., that is, the magnetic attraction disc 9 and the separation disc 7 are always kept in contact during the ascending process; when the pulleys 5 on the two sides of the sliding frame 4 abut against the limiting block 6, the separating disc 7, the sliding frame 4 and the extension frame 8 stop moving upwards, the driving unit pulls the driving part 13 to ascend, so that the magnetic suction disc 9 continues to move upwards, the compression spring 14 is further extruded, the distance between the separating disc 7 and the magnetic suction disc 9 is gradually increased, and when the magnetic suction force of the magnetic suction disc 9 on the experimental sample block is smaller than the gravity of the experimental sample frame; the experimental sample block is made into a free falling body and falls into a falling box 1; at this time, the driving unit controls the driving part 13 to move downwards, and the compression spring 14 is gradually restored to keep the magnetic attraction disc 9 in contact with the separation disc 7; the sliding frame 4 moves downwards along the whole limiting frame 2 under the action of gravity, so that the magnetic suction disc 9 and the separating disc 7 enter the falling box 1, and the grabbing and releasing operations are repeated again; the length of the extension frame 8 corresponds to the depth of the falling box 1, so that the magnetic suction disc 9 and the separation disc 7 can adsorb the experimental sample block when the falling box falls to the lowest position; when the magnetic suction disc 9 and the separating disc 7 of the device rise to the preset height, the magnet 10 experimental sample is released in a self-adaptive mode, and rising and releasing are carried out synchronously so as to reduce the operation steps of secondary releasing; the time required for completing one stroke is saved, and certain working efficiency is improved; simultaneously this application separate dish 7 is the motionless state, makes magnetism sucking disc 9 upward movement simultaneously, releases the experimental sample piece, and separate dish 7 is the motionless and means the experimental sample piece not have initial velocity, carries out the free fall motion.

As shown in fig. 2, the driving unit is an electric hoist 15, which is horizontally arranged at the upper end of the limiting frame 2 through a mounting frame 16, and the limiting frame 2 at the other side and the end of the mounting frame 16 are fixed through an inverted U-shaped reinforcing frame 17, so that the overall structural strength is increased.

The forward rotation and reverse rotation of the electric hoist 15 can be realized by matching a travel switch and a relay, or can be realized by a sensor and a PLC (the forward rotation and reverse rotation of the motor can be switched when the motor reaches a specified position in the prior art, and detailed description is omitted); the two driving devices are used for driving the magnetic suction disc 9 and the separating disc 7 to lift and descend; when the height of the experimental sample is increased to a preset height, the experimental sample of the magnet 10 is released in a self-adaptive mode, and when the experimental sample of the magnet 10 is lowered to a height corresponding to the falling box 1, the experimental sample of the magnet 10 is grabbed.

Example one

As shown in fig. 3, the driving portion 13 is an annular structure, a sliding shaft 11 is vertically arranged in the middle of the upper surface of the magnetic attraction plate 9, the sliding shaft 11 passes through the sliding channel 12 and is fixed with the driving portion 13, and the driving portion 13 is fixed with the rope of the electric hoist 15.

Example two

As shown in fig. 5, the driving part 13 is a plate-shaped structure, two sliding shafts 11 are oppositely arranged on the upper surface of the magnetic attraction disc 9, the sliding shafts 11 are fixed to the lower side of the driving part 13 through the sliding channels 12, and the driving part 13 is fixed to the rope of the electric hoist 15.

The above-mentioned fixing methods, if not separately described, all use the means of common technique of those skilled in the art, such as welding, nesting, or screw fixing.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a test device is descended to self-adaptation neodymium iron boron plating bed cohesion which characterized in that: the device comprises a falling box (1) for collecting experimental sample blocks, limiting frames (2) which are oppositely arranged on two sides of the falling box (1), and a driving unit for driving the falling box to ascend and descend; the sliding frame (4) is matched between the limiting frames (2) in a sliding manner, and the top of each limiting frame (2) is provided with a limiting block (6) for limiting the sliding of the sliding frame (4); the separation disc (7) is fixed on the lower side of the sliding frame (4) through an extension frame (8), and the adsorption disc is in sliding fit with the lower side of the sliding frame (4) and is in contact with the upper surface of the separation disc (7); in the process that the driving unit drives the sliding frame (4) to rise, the limiting block (6) limits the sliding frame (4) to slide, so that the magnetic suction disc (9) moves upwards and is separated from the suction separation disc (7).

2. The self-adaptive neodymium-iron-boron plating bonding force drop test device according to claim 1, which is characterized in that: a plurality of magnets (10) are embedded in the lower surface of the magnetic suction disc (9), and the upper surface of the magnetic suction disc (9) is matched with the sliding frame (4) through a sliding shaft (11); a sliding channel (12) corresponding to the sliding shaft (11) is formed in the sliding frame (4), and the sliding shaft (11) penetrates through the sliding channel (12) and is fixed with the driving part (13); the driving part (13) is fixed with the driving unit, the driving part (13) is pulled to rise through the driving unit, and a compression spring (14) penetrates through a sliding shaft (11) between the magnetic suction disc (9) and the sliding frame (4).

3. The self-adaptive neodymium-iron-boron plating bonding force drop test device according to claim 2, which is characterized in that: the driving part (13) is of a plate-shaped structure, two sliding shafts (11) are oppositely arranged on the upper surface of the magnetic suction disc (9), and the sliding shafts (11) penetrate through the sliding channel (12) and are fixed with the lower side of the driving part (13).

4. The self-adaptive neodymium-iron-boron plating bonding force drop test device according to claim 2, which is characterized in that: the driving part (13) is of an annular structure, a sliding shaft (11) is vertically arranged in the middle of the upper surface of the magnetic suction disc (9), and the sliding shaft (11) penetrates through the sliding channel (12) to be fixed with the driving part (13).

5. The self-adaptive neodymium-iron-boron plating bonding force drop test device according to claim 2, which is characterized in that: and the natural length of the compression spring (14) is equal to the distance between the magnetic suction disc (9) and the sliding frame (4).

6. The self-adaptive neodymium-iron-boron plating bonding force drop test device according to claim 2, which is characterized in that: the natural length of the compression spring (14) is larger than the distance between the magnetic suction disc (9) and the sliding frame (4).

7. The self-adaptive neodymium-iron-boron plating bonding force drop test device according to claim 1, which is characterized in that: the driving unit is an electric hoist (15) which is horizontally arranged at the upper side end part of the limiting frame (2) through a mounting frame (16).

8. The self-adaptive neodymium-iron-boron plating bonding force drop test device according to claim 7, which is characterized in that: the limiting frame (2) is fixed with the end part of the mounting frame (16) through an inverted U-shaped reinforcing frame (17).