Centering tool for tightening station

Abstract

The utility model discloses a centering tool of a tightening station, which aims at solving the problem that the original reason is difficult to analyze when the tightening is poor due to the adoption of a product centering mode in the prior art, and comprises a base plate and a centering platform, and the centering platform is fixedly arranged on the base plate; the chassis is fixedly arranged on a line body of a tightening station, a plurality of through holes are formed in the upper surface of the centering platform, a centering sleeve is embedded in each through hole, and the diameter of each centering sleeve is matched with that of a screwdriver in a tightening gun on the tightening station; a centering pressing block is embedded in a through hole in the lower surface of the centering platform, after the centering pressing block is pressed down, the centering sleeve is pushed to extend out of the upper surface of the centering platform and is centered with the screwdriver head, whether interference exists between the centering sleeve and the screwdriver head or not is observed, and if not, centering is good; if interference exists, corresponding adjustment needs to be carried out according to the interference part. And when the tightening is poor due to centering, whether the tightening is poor due to the product size or the inaccurate servo position is easy to distinguish, so that the analysis and the solution of problems are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary installation, and in particular relates to a centering tool for a tightening station. Background Art

[0002] When using automated equipment to tighten the screws of a product, it is necessary to align the bit with the hole position of the product.

[0003] Usually, it is necessary to put the product to be tightened on the tightening station in advance, use the product to center the screwdriver bit, and adjust the position of the screwdriver bit. However, the hole size of each batch of products has a certain deviation. If the product centering method is adopted, the product needs to be centered for each batch, which is complicated and not conducive to improving production efficiency.

[0004] Furthermore, when product alignment is used and poor tightening occurs due to alignment, it is difficult to distinguish whether it is caused by product size or inaccurate servo position, which is not conducive to problem analysis and resolution. Utility Model Content

[0005] The utility model aims to provide a centering tool for a tightening station to improve the centering efficiency of the product.

[0006] To solve the above problems, the technical solution of the utility model is:

[0007] A centering tool for a tightening station, comprising: a chassis, a centering platform, wherein the centering platform is fixedly arranged on the chassis;

[0008] The chassis is fixed on the wire body of the tightening station, and the size of the chassis is consistent with the size of the tray used in the tightening station;

[0009] A plurality of through holes are provided on the upper surface of the centering platform, and a centering sleeve is embedded in each through hole, and the diameter of the centering sleeve matches the screwdriver bit in the tightening gun at the tightening station;

[0010] A centering pressing block is embedded in the through hole on the lower surface of the centering platform. When the centering pressing block is pressed, the centering sleeve is pushed out of the upper surface of the centering platform to be centered with the bit.

[0011] The height of the centering platform is consistent with the height of the hole of the product to be tightened.

[0012] The centering pressing block comprises a front end cylinder and a rear end cylinder, and the front end cylinder and the rear end cylinder are coaxially fixedly connected;

[0013] The front cylindrical part is embedded in the through hole, and the diameter of the rear cylindrical part is larger than the diameter of the through hole.

[0014] The centering pressing block is elastically connected to the centering sleeve.

[0015] The diameter of the centering sleeve is greater than the diameter of the bit.

[0016] Due to the adoption of the above technical solution, the utility model has the following advantages and positive effects compared with the prior art:

[0017] The centering tool of the tightening station in one embodiment of the utility model aims at the problem that it is difficult to analyze the cause of poor tightening when the existing product centering method occurs. The centering tool is used to center the screwdriver bit and observe whether there is interference between the centering sleeve and the screwdriver bit. If there is no interference, it means that the centering is good; if there is interference, it is necessary to make corresponding adjustments according to the interference part. The centering tool can improve the centering efficiency; when poor tightening occurs due to centering, it is easy to distinguish whether it is caused by product size or inaccurate servo position, which is conducive to the analysis and solution of the problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a tightening station in an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of a centering tool for a tightening station in one embodiment of the utility model;

[0020] Figure 3 It is a connection diagram of the centering pressing block in one embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1: chassis; 2: centering platform; 3: through hole; 4: centering sleeve; 5: centering pressing block; 501: front cylinder; 502: rear cylinder; 6: spring; 7: servo; 8: tightening gun; 9: wire body; 10: product and pallet position. DETAILED DESCRIPTION

[0023] The following is a further detailed description of a centering tool for tightening stations proposed by the utility model in combination with the accompanying drawings and specific embodiments. The advantages and features of the utility model will become more clear according to the following description and claims.

[0024] This embodiment provides a centering tool for a tightening station, which is used to calibrate the position of a screwdriver bit. Figure 1When calibrating the position of the screwdriver bit, the centering tool is placed on the product and pallet position 10 on the line body 9, and the lifting cylinder on the tightening station lifts the centering tool until the centering point is consistent with the three coordinates of the hole position that needs to be tightened on the product. Move the servo 7 so that the tightening gun 8 reaches the working position consistent with normal production. Then, the tightening gun extends the nail suction tube and the screwdriver bit, presses the centering pressing block of the centering tool to extend the centering sleeve, observes whether the centering sleeve interferes with the screwdriver bit position, and reasonably adjusts the servo position to complete the centering.

[0025] For details, please see Figure 2 The centering tooling includes a chassis 1 and a centering platform 2, and the centering platform 2 is fixed on the chassis 1. When calibrating the position of the screwdriver bit, the chassis 1 is fixed on the line body 9 of the tightening station, and the size of the chassis is consistent with the size of the tray used in the tightening station. The height of the centering platform 2 is consistent with the height of the hole position of the product to be tightened.

[0026] The upper surface of the centering platform 2 is provided with a plurality of through holes 3, each of which is embedded with a centering sleeve 4, the diameter of which matches the screwdriver bit in the screwdriver gun 8 at the screwdriver station. In practical applications, the diameter of the centering sleeve 4 is slightly larger than the diameter of the screwdriver bit, for example, the diameter of the centering sleeve is 0.1 mm larger than the diameter of the screwdriver bit. The hole positions of different products correspond to screwdriver bits of different diameters, and one screwdriver bit corresponds to one centering sleeve.

[0027] A centering pressing block 5 is embedded in the through hole 3 on the lower surface of the centering platform 2, and the centering pressing block 5 is elastically connected to the centering sleeve 4. When the centering pressing block 5 is pressed, the centering sleeve 4 is pushed out of the upper surface of the centering platform 2 to be centered with the screwdriver bit. After the centering pressing block 5 is released, the centering pressing block returns to its original position.

[0028] Please see Figure 3 The centering pressing block 5 includes a front cylinder 501 and a rear cylinder 502, and the front cylinder 501 and the rear cylinder 502 are coaxially fixedly connected. Part of the cylinder of the front cylinder 501 is embedded in the through hole 3, and the diameter of the rear cylinder 502 is larger than the diameter of the through hole 3. One end of the spring 6 is fixed on the centering sleeve 4, and the other end of the spring 6 is sleeved on the front cylinder 501, and the rear cylinder 502 has a limiting effect on the spring 6.

[0029] Taking the production of inverter as an example, when producing the driver board, the holes on the board that need to be tightened are Figure 2 The through holes on the centering platform are consistent, with four holes on both sides, a total of eight holes. When centering, place the centering tool on the line body of the tightening station, simulate the state of the drive board during production, start the servo to move the tightening gun to the hole position that needs to be centered, extend the screwdriver bit, press the centering pressing block from bottom to top, so that the centering sleeve extends out of the centering platform and aligns with the screwdriver bit. Observe whether the centering sleeve and the screwdriver bit interfere with each other. If there is no interference, it means that the centering is good. If there is interference, the centering can be adjusted accordingly according to the interference part.

[0030] The position of the bit is centered by the centering tool of this embodiment, and the position of the bit corresponding to each hole position is determined. No matter how the hole diameter of the product to be tightened changes, its center remains unchanged. Based on this, as long as the bit is centered with the center of the hole diameter, it can be applied to products of various hole diameters. There is no need to perform centering once for each product, which improves the centering efficiency and thus improves production efficiency. In addition, when poor tightening occurs due to centering, it is only necessary to repeat the tightening process once more and observe the position of the bit for each hole position. If the relative position of the bit and the hole position is consistent for each hole position, it indicates that it is not caused by inaccurate servo position, and it can be determined that it is caused by the aperture size of the product. This is conducive to the analysis and resolution of the problem.

[0031] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. A centering tool for a tightening station, characterized in that: include: A chassis and a centering platform, wherein the centering platform is fixedly mounted on the chassis; The chassis is fixed on the wire body of the tightening station, and the size of the chassis is consistent with the size of the tray used in the tightening station; A plurality of through holes are provided on the upper surface of the centering platform, and a centering sleeve is embedded in each through hole. The diameter of the centering sleeve matches the bit in the tightening gun at the tightening station; the coordinates and quantity of the through holes are consistent with the product to be tightened; A centering pressing block is embedded in the through hole on the lower surface of the centering platform. When the centering pressing block is pressed, the centering sleeve is pushed out of the upper surface of the centering platform to be centered with the bit.

2. The centering tool for tightening station according to claim 1, characterized in that: The height of the centering platform is consistent with the height of the hole of the product to be tightened.

3. The centering tool for tightening station according to claim 1, characterized in that: The centering pressing block comprises a front end cylinder and a rear end cylinder, and the front end cylinder and the rear end cylinder are coaxially fixedly connected; The front cylindrical part is embedded in the through hole, and the diameter of the rear cylindrical part is larger than the diameter of the through hole.

4. The centering tool for tightening station according to claim 1, characterized in that: The centering pressing block is elastically connected to the centering sleeve.

5. The centering tool for tightening station according to claim 1, characterized in that: The diameter of the centering sleeve is greater than the diameter of the bit.

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