Steel ball detection fixture system

Abstract

The application discloses a steel ball detection fixing clamp system, which comprises a clamp base and a positioning groove formed in the clamp base, an electromagnet is fixed in the clamp base, the positioning groove is in a spherical surface structure, the end of the electromagnet extends to a position close to the bottom of the positioning groove, a magnetic attraction control plate is arranged in the clamp base, the magnetic attraction control plate is connected with the electromagnet, a detector is arranged in the positioning groove, the detector is electrically connected with the magnetic attraction control plate to detect the weight of the steel ball and then input into the magnetic attraction control plate, and the magnetic attraction control plate controls the electromagnet to generate corresponding magnetic force according to the weight of the steel ball. The steel ball detection fixing clamp system can effectively realize the detection of the weight of the steel ball through the arrangement of the detector in the positioning groove, and then the electromagnet can generate appropriate magnetic force, so that the clamp system can well position different steel balls.

Description

Technical Field

[0001] This invention relates to a steel ball clamp, and more specifically to a steel ball detection and fixing clamp system. Background Technology

[0002] Bearings are an important component in mechanical equipment. Their main function is to support rotating mechanical parts and reduce the coefficient of friction during mechanical rotation. Therefore, in order to ensure the quality of bearings, various tests need to be carried out on the steel balls inside the bearings during the production process. For example, the diameter, smoothness, and hardness of the steel balls need to be tested to ensure that the steel balls leaving the factory meet the requirements. During the testing process, the steel balls need to be positioned, and thus steel ball clamps have come into being.

[0003] Currently, there is a patent with the number 201711322790.5 entitled "A Bearing Seat Steel Ball Clamping Fixture" which discloses the following structure. By setting a first hole and a second hole, a space can be formed to accommodate a steel ball. Then, by setting a magnet, the steel ball can be positioned by magnetic force. However, since the diameter of the first hole and the second hole in the above structure is fixed, it can only be used for steel balls with a diameter equal to or smaller than the hole diameter, thus having a limited range of applications. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a steel ball detection and fixing fixture system with a wider range of applications.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a steel ball detection and fixing fixture system, comprising a fixture base and a positioning groove formed on the fixture base, wherein an electromagnet is fixed inside the fixture base, the positioning groove has a spherical structure, the end of the electromagnet extends to a position near the bottom of the positioning groove, a magnetic attraction control board is provided inside the fixture base, the magnetic attraction control board is connected to the electromagnet to control the magnetic force generated by the electromagnet, a detector is provided inside the positioning groove, the detector is electrically connected to the magnetic attraction control board to detect the weight of the steel ball and input it into the magnetic attraction control board, and the magnetic attraction control board controls the electromagnet to generate a corresponding magnetic force according to the weight of the steel ball.

[0006] As a further improvement of the present invention, the opening of the positioning groove is chamfered.

[0007] As a further improvement of the present invention, the detector is a pressure detection cover that is fitted and fixed to the bottom of the positioning groove. The pressure detection cover is communicatively connected to the magnetic suction control board to output the pressure applied by the steel ball to the magnetic suction control board.

[0008] As a further improvement of the present invention, the pressure detection cover includes an air bladder, a detection tube, a piston, and a return spring. The lower end of the detection tube is closed, and the upper end extends to the bottom of the positioning groove and passes through the electromagnet. The air bladder is placed in the positioning groove and passes downward through the bottom of the positioning groove to communicate with the inside of the detection tube. The air bladder is filled with a filling liquid. The piston is slidably disposed in the detection tube. The upper end of the return spring abuts against the lower end face of the piston, and the lower end abuts against the lower end of the detection tube. A conductive sheet is fixed on the outer side wall of the piston. A conductive coil is coaxially wound on the inner side wall of the detection tube to form an electromagnet. The conductive sheet and the conductive coil are connected to a magnetic attraction control board. When the conductive sheet contacts the conductive coil, a resistance value is output to the magnetic attraction control board. The filling liquid is a non-conductive liquid.

[0009] As a further improvement of the present invention, the specific steps of the magnetic attraction control board controlling the electromagnet to generate a corresponding magnetic force according to the weight of the steel ball are as follows:

[0010] Step 1: The magnetic control board connects the conductive sheet and one end of the conductive coil to form a circuit. Then, it detects the resistance value output by the circuit in real time. When the resistance value changes, it enters the weight detection mode and uses the final stable resistance value as the weight data of the steel ball.

[0011] Step 2: Calculate the magnitude of the magnetic force to be generated based on the preset weight data, and calculate the output current of the magnetic attraction control board based on the magnetic force.

[0012] Step 3: The magnetic control board disconnects the conductive sheet and simultaneously connects the two ends of the conductive coil, outputting current into the conductive coil to drive it to generate a corresponding magnetic force.

[0013] The beneficial effects of this invention are that, through the setting of the clamp base and the positioning groove thereon, a structure for placing steel balls can be effectively formed. Through the setting of the magnetic attraction control board and detector in the clamp base, the size of the currently positioned steel ball can be effectively detected by the detector, so that the electromagnet can provide appropriate magnetic force to attract the steel ball. This avoids the problem that the steel ball cannot be attracted well due to insufficient attraction force, and also avoids the problem that the subsequent components are difficult to operate the steel ball due to excessive attraction force. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the steel ball detection and fixing fixture system of the present invention. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0016] Reference Figure 1As shown, a steel ball detection and fixing fixture system according to this embodiment includes a fixture base 1 and a positioning groove 2 formed on the fixture base 1. An electromagnet 3 is fixed inside the fixture base 1. The positioning groove 2 has a spherical structure, and the end of the electromagnet 3 extends to a position near the bottom of the positioning groove 2. A magnetic attraction control plate 4 is provided inside the fixture base 1. The magnetic attraction control plate 4 is connected to the electromagnet 3 to control the magnetic force generated by the electromagnet 3. A detector 5 is provided inside the positioning groove 2. The detector 5 is electrically connected to the magnetic attraction control plate 4 to detect the weight of the steel ball and input the data to the magnetic attraction control plate 4. Inside plate 4, the magnetic attraction control plate 4 controls the electromagnet 3 to generate a corresponding magnetic force according to the weight of the steel ball. In this embodiment of the clamping system, during use, the steel ball only needs to be placed on the positioning groove 2, and then the detector 5 will detect the current weight of the steel ball and determine its size. Then, the magnetic attraction control plate 4 controls the magnetic force generated by the electromagnet 3 so that the magnetic force can effectively match the steel ball. Compared with the existing technology that only uses magnetic adsorption, this can effectively avoid the problem of excessive or insufficient magnetic force, and ensure the applicability of the clamping system.

[0017] As an improved specific implementation, the detector 5 is a pressure detection cover 6 that is attached and fixed to the bottom of the positioning groove 2. The pressure detection cover 6 is communicatively connected to the magnetic attraction control board 4 to output the pressure applied by the steel ball to the magnetic attraction control board 4. With the above structure, the weight of the steel ball currently placed on the positioning groove 2 can be effectively detected by the pressure detection cover 6.

[0018] As an improved implementation, the groove opening of the positioning groove 2 is chamfered. By setting the chamfer, it can better adapt to different steel ball diameters.

[0019] In one specific embodiment of the improvement, the pressure detection cover 6 includes an air bladder 61, a detection tube 62, a piston 63, and a return spring 64. The lower end of the detection tube 62 is closed, and the upper end extends to the bottom of the positioning groove 2 and passes through the electromagnet 3. The air bladder 61 is placed in the positioning groove 2 and passes downward through the bottom of the positioning groove 2 to communicate with the inside of the detection tube 62. The air bladder 61 is filled with a filling liquid. The piston 63 is slidably disposed in the detection tube 62. The upper end of the return spring 64 abuts against the lower end face of the piston 63, and the lower end abuts against the lower end of the detection tube 62. A conductive sheet is fixed on the outer side wall of the piston 63, and a conductive coil is coaxially wound on the inner side wall of the detection tube 62 to form an electromagnet. 3. The conductive sheet and conductive coil are connected to the magnetic attraction control board 4. When the conductive sheet and conductive coil come into contact, the resistance value is output to the magnetic attraction control board 4. The filling liquid is a non-conductive liquid. With the above structure, the resistance value between the conductive sheet and one end of the conductive coil can be changed by pushing the piston 63 with the filling liquid, thus forming a sliding rheostat structure. The weight of the steel ball can be detected by the change in resistance. In this embodiment, the reset position of the reset spring 64 is when the piston 63 is at a position where the resistance between the conductive sheet and one end of the conductive coil is approximately 0. Therefore, the resistance value reached by the weight of the steel ball each time is the current resistance value reading, thus facilitating and effectively realizing the weight detection of the steel ball.

[0020] As an improved specific implementation, the magnetic attraction control board 4 controls the electromagnet 3 to generate a corresponding magnetic force according to the weight of the steel ball, and the specific steps are as follows:

[0021] Step 1: The magnetic control board 4 connects the circuit between the conductive sheet and one end of the conductive coil, then detects the resistance value output by the circuit in real time, and enters the weight detection mode when the resistance value changes, and uses the final stable resistance value as the weight data of the steel ball.

[0022] Step 2: Calculate the magnitude of the magnetic force to be generated based on the preset weight data, and calculate the output current of the magnetic attraction control board 4 based on the magnetic force.

[0023] Step 3: The magnetic control board 4 disconnects the conductive sheet and simultaneously connects the two ends of the conductive coil, outputting current into the conductive coil to drive it to generate a corresponding magnetic force. Through the above steps, the weight of the steel ball can be effectively measured by receiving the resistance value. The conductive coil is then used directly as the electromagnet 3, eliminating the need for an additional electromagnet and reducing the space occupied by the fixture base 1.

[0024] In summary, the clamping system of this embodiment, through the setting of the clamping base 1 and the positioning groove 2 thereon, can effectively realize the combination of the electromagnet 3, the magnetic attraction control board 4 and the detector 5, and effectively realize the detection of the weight of the steel ball by the detector 5, and then provide the corresponding magnetic force according to the weight, thereby increasing the applicability of the clamping system.

[0025] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A steel ball detection and fixing fixture system, comprising a fixture base (1) and a positioning groove (2) formed on the fixture base (1), wherein an electromagnet (3) is fixed inside the fixture base (1), characterized in that: The positioning groove (2) has a spherical structure. The end of the electromagnet (3) extends to a position close to the bottom of the positioning groove (2). A magnetic control board (4) is provided in the fixture base (1). The magnetic control board (4) is connected to the electromagnet (3) to control the magnetic force generated by the electromagnet (3). A detector (5) is provided in the positioning groove (2). The detector (5) is electrically connected to the magnetic control board (4) to detect the weight of the steel ball and input it into the magnetic control board (4). The magnetic control board (4) controls the electromagnet (3) to generate a corresponding magnetic force according to the weight of the steel ball.

2. The steel ball detection and fixing fixture system according to claim 1, characterized in that: The opening of the positioning groove (2) is chamfered.

3. The steel ball detection and fixing fixture system according to claim 2, characterized in that: The detector (5) is a pressure detection cover (6) that is attached to and fixed to the bottom of the positioning groove (2). The pressure detection cover (6) is connected to the magnetic control board (4) to output the pressure applied by the steel ball into the magnetic control board (4).

4. The steel ball detection and fixing fixture system according to claim 3, characterized in that: The pressure detection cover (6) includes an airbag (61), a detection tube (62), a piston (63), and a return spring (64). The lower end of the detection tube (62) is closed, and the upper end extends to the bottom of the positioning groove (2) and passes through the electromagnet (3). The airbag (61) is placed in the positioning groove (2) and passes downward through the bottom of the positioning groove (2) to communicate with the inside of the detection tube (62). The airbag (61) is filled with filling liquid. The piston (63) is slidably set in the detection... Inside the tube (62), the upper end of the reset spring (64) abuts against the lower end face of the piston (63), and the lower end abuts against the lower end of the detection tube (62). A conductive sheet is fixed on the outer side wall of the piston (63), and a conductive coil is coaxially wound on the inner side wall of the detection tube (62) to form an electromagnet (3). The conductive sheet and the conductive coil are connected to the magnetic attraction control board (4). When the conductive sheet contacts the conductive coil, the resistance value is output to the magnetic attraction control board (4), where the filling liquid is a non-conductive liquid.

5. The steel ball detection and fixing fixture system according to claim 4, characterized in that: The specific steps by which the magnetic control board (4) controls the electromagnet (3) to generate corresponding magnetic force according to the weight of the steel ball are as follows: Step 1: The magnetic control board (4) connects the circuit between the conductive sheet and one end of the conductive coil, then detects the resistance value output by the circuit in real time, and enters the weight detection mode when the resistance value changes, and uses the final stable resistance value as the weight data of the steel ball. Step 2: Calculate the magnitude of the magnetic force to be generated based on the preset weight data, and calculate the output current of the magnetic attraction control board (4) based on the magnetic force. Step 3: The magnetic control board (4) disconnects the conductive sheet and simultaneously connects the two ends of the conductive coil, outputting current into the conductive coil to drive the conductive coil to generate a corresponding magnetic force.

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