Telescopic clamp and magnetic sheet aligning structure comprising same

Abstract

The utility model relates to the technical field of magnetic steel production equipment, and provides a telescopic clamp and a magnetic sheet aligning structure comprising the telescopic clamp, the telescopic clamp comprises two telescopic clamp bodies which are horizontally and oppositely arranged between a limiting disc and a magnetic conducting ring, each telescopic clamp body is connected with a pneumatic push rod, and the pneumatic push rod is connected with a magnetic sheet. Each telescopic clamp body is of a semicircular structure, the two telescopic clamp bodies make contact with each other to form a circular ring structure, and the outer diameter of the magnetic conductive ring is larger than the inner diameter of the circular ring structure and smaller than the outer diameter of the circular ring structure. According to the utility model, the telescopic clamps are arranged in the descending stroke of the magnetic conductive ring, the lower end of the magnetic sheet surrounding the surface of the magnetic conductive ring is aligned through the circular ring structure formed by the contact of the two telescopic clamp bodies, and then the magnetic sheet is placed in the magnetic steel for fitting, so that the flatness of the magnetic sheet can be ensured, and the mounting quality of the whole device is improved; and actual use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic steel production equipment, in particular to a telescopic clamp and a magnetic sheet alignment structure comprising the telescopic clamp. Background Art

[0002] The motor used in electric bicycles is generally composed of coils, magnetic steel, magnetic sheets, flywheels, bearings, cover plates, etc. Among them, magnetic sheets are attached inside the magnetic steel to generate a magnetic field.

[0003] When preparing the magnetic steel, a circle of magnetic sheets will be attached around the inner wall to meet the use requirements of the magnetic steel. The traditional magnetic sheet placement machine is used for magnetic steel sheets without side covers at both ends. It only needs to set a circle of convex rings at the bottom of the machine. When pressing the magnetic sheet down, just press it to the bottom. In actual production, in order to improve efficiency, the magnetic steel and one side of the side cover will be formed into one piece. The inner bottom surface of the integrally formed magnetic steel has a curvature and the corresponding convex ring cannot be set. If a traditional magnetic sheet placement machine is used, the mounted magnetic sheets cannot be aligned, the flatness cannot be guaranteed, and the actual assembly effect is affected. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a telescopic clamp and a magnetic sheet alignment structure including the telescopic clamp, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a telescopic clamp is installed on a patch machine body, and a limit plate and a magnetic conductive ring are arranged on the patch machine body. The telescopic clamp comprises: two telescopic clamp bodies arranged horizontally and facing each other between the limit plate and the magnetic conductive ring, each of the telescopic clamp bodies is connected to a pneumatic push rod, a single telescopic clamp body is a semicircular structure, and two telescopic clamp bodies contact to form a circular ring structure, and the outer diameter of the magnetic conductive ring is larger than the inner diameter of the circular ring structure and smaller than the outer diameter of the circular ring structure.

[0006] Preferably, the telescopic clamp further comprises: a base for fixing the two pneumatic push rods, a circular through hole is opened in the middle of the base, and the circular through hole is located directly above the limiting plate.

[0007] Preferably, two ends of the base are slidably connected to guide rods on the patch machine body, and two ends of the base are connected to output ends of a first cylinder on the patch machine body.

[0008] Preferably, a guide cylinder is installed at the center of the bottom surface of the base, and the inner diameter of the guide cylinder is equal to the diameter of the circular through hole.

[0009] The magnetic sheet alignment structure of the utility model comprises the above-mentioned telescopic clamp and a cylinder fixedly connected to a magnetic conductive ring, a circular step is arranged at the position where the cylinder contacts the upper end surface of the magnetic conductive ring, the outer diameter of the circular step is larger than the outer diameter of the magnetic conductive ring, a second cylinder is arranged on the patch machine body, the output shaft of the second cylinder is vertically downward and fixedly connected to the cylinder.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The utility model sets up a telescopic clamp during the descending stroke of the magnetic conductive ring, and forms a circular ring structure through the contact of two telescopic clamp bodies, so as to align the lower end of the magnetic sheet surrounding the surface of the magnetic conductive ring, and then place the magnetic sheet into the interior of the magnetic steel for bonding, so as to ensure the flatness of the magnetic sheet, thereby improving the mounting quality of the entire device and meeting the actual use requirements.

[0012] 2. The utility model establishes a magnetic sheet alignment structure, which can be applied to magnetic steel mounting magnetic sheets with a side cover and a magnetic steel integrally formed on one side. The magnetic steel with an integrally formed side cover can reduce the process of preparing the magnetic steel, and cooperate with the entire magnetic sheet alignment structure to ensure the flatness of the magnetic sheets when they are attached, thereby improving the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the telescopic clamp of the utility model when it is opened;

[0014] Figure 2 This is a schematic diagram of the structure of the telescopic clamp in the utility model when it is closed;

[0015] Figure 3 It is a schematic diagram of another viewing angle when the telescopic clamp of the utility model is closed;

[0016] Figure 4 It is a schematic diagram of the position of the magnetic sheet alignment structure of the utility model on the chip mounting machine body.

[0017] In the figure: 1. SMT machine body; 2. Limit plate; 3. Magnetic ring; 4. Cylinder; 5. Base; 6. Telescopic clamp body; 7. Pneumatic push rod; 8. Guide cylinder. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4A telescopic clamp is installed on a patch machine body 1, and a limit plate 2 and a magnetic conductive ring 3 are arranged on the patch machine body 1. The telescopic clamp includes: two telescopic clamp bodies 6, and the two telescopic clamp bodies 6 are horizontally arranged between the limit plate 2 and the magnetic conductive ring 3. Each telescopic clamp body 6 is connected with a pneumatic push rod 7, and the pneumatic push rod 7 is retracted to drive the telescopic clamp body 6 to contact or separate. A single telescopic clamp body 6 is a semicircular structure, and two telescopic clamp bodies 6 can form a circular ring structure when they are in contact. The outer diameter of the magnetic conductive ring 3 is larger than the inner diameter of the circular ring structure and smaller than the outer diameter of the circular ring structure. In this way, when the circular ring structure is formed, a circle of magnetic sheets wrapped around the magnetic conductive ring 3 can contact with the surface of the circular ring structure, thereby aligning, ensuring alignment during patching, and no further adjustment is required.

[0020] In addition, the telescopic clamp also includes a base 5, on which the telescopic clamp body 6 is slidable, and the base 5 is used to fix two pneumatic push rods 7, and a circular through hole is opened in the middle of the base 5, which is located just above the limit plate 2 and aligned with the center of the limit plate 2. The two ends of the base 5 are slidably connected to the guide rods on the patch body 1, and the two ends of the base 5 are connected to the output end of the first cylinder on the patch body 1, and under the drive of the guide rods, the base 5 is vertically lifted and lowered along the guide rods.

[0021] In an additional embodiment, a guide cylinder 8 is added to limit the position of the magnet on the limit plate 2. A guide cylinder 8 is installed at the center of the bottom surface of the base 5, and the inner diameter of the guide cylinder 8 is equal to the diameter of the circular through hole, that is, the inner wall of the guide cylinder 8 and the inner wall of the circular through hole form a vertical annular surface with the same diameter. The outer ring of the magnet is an outward expansion structure, and the guide cylinder 8 contacts the inner wall of the maximum diameter of the magnet for positioning, which improves the overall mounting accuracy while ensuring that the magnetic ring 3 enters the interior of the magnet and fits the magnetic sheet at a predetermined position.

[0022] The magnetic sheet alignment structure of the utility model comprises the above-mentioned telescopic clamp and a cylinder 4 fixedly connected to the magnetic conductive ring 3. A circular step is arranged at the position where the cylinder 4 contacts the upper end surface of the magnetic conductive ring 3. The outer diameter of the circular step is larger than the outer diameter of the magnetic conductive ring 3, so that when the magnetic sheet surrounds the magnetic conductive ring 3, the top of the magnetic sheet is limited by the circular step. A second cylinder is arranged on the patch machine body 1. The output shaft of the second cylinder is vertically downward, and its end is fixedly connected to the cylinder 4.

[0023] Working principle: when the magnetic ring 3 adsorbing the magnetic sheet descends, the base 5 also descends, and the guide cylinder 8 fixed on the bottom surface of the base 5 contacts the magnetic steel placed on the limit plate 2 to provide positioning and maintain the coaxiality of the subsequent annular magnetic sheet. The pneumatic push rod 7 is started to cause the two telescopic clamp bodies 6 to slide toward the center until the two contact and form a circular ring structure. At this time, the lower end of the magnetic ring 3 adsorbing the magnetic sheet contacts the top plane of the circular ring structure, thereby squeezing the magnetic sheet to align the lower end of the magnetic sheet, and then the pneumatic push rod 7 is used to separate the two telescopic clamp bodies 6, so that the magnetic ring 3 adsorbing the magnetic sheet can descend to the inside of the magnetic steel to complete the magnetic sheet adhesion and adsorption. It should be noted that the suction force of the inner wall of the magnetic steel on the magnetic sheet is greater than the suction force of the magnetic ring 3 on the magnetic sheet. Therefore, when the magnetic sheet descends to the predetermined position, it will be adsorbed on the magnetic steel.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic clamp, mounted on a patch machine body (1), wherein a limit plate (2) and a magnetic conductive ring (3) are arranged on the patch machine body (1); characterized in that: include: Two telescopic clamp bodies (6) are arranged horizontally and oppositely between the limit plate (2) and the magnetic conductive ring (3), each of the telescopic clamp bodies (6) is connected to a pneumatic push rod (7), a single telescopic clamp body (6) is a semicircular structure, and two telescopic clamp bodies (6) are in contact to form a circular ring structure, and the outer diameter of the magnetic conductive ring (3) is larger than the inner diameter of the circular ring structure and smaller than the outer diameter of the circular ring structure.

2. The telescopic clamp according to claim 1, characterized in that: Also includes: A base (5) for fixing the two pneumatic push rods (7) is provided in the middle of the base (5), and the circular through hole is located directly above the limiting plate (2).

3. The telescopic clamp according to claim 2, characterized in that: The two ends of the base (5) are slidably connected to the guide rods on the patch machine body (1), and the two ends of the base (5) are connected to the output ends of the first cylinder on the patch machine body (1).

4. The telescopic clamp according to claim 2, characterized in that: A guide cylinder (8) is installed at the center of the bottom surface of the base (5), and the inner diameter of the guide cylinder (8) is equal to the diameter of the circular through hole.

5. A magnetic sheet alignment structure, comprising the telescopic clamp according to claim 1, characterized in that: Also includes: A cylinder (4) is fixedly connected to the magnetic conductive ring (3); a circular step is provided at a position where the cylinder (4) contacts the upper end surface of the magnetic conductive ring (3); the outer diameter of the circular step is greater than the outer diameter of the magnetic conductive ring (3); a second cylinder is provided on the patch machine body (1); the output shaft of the second cylinder is vertically downward and fixedly connected to the cylinder (4).

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