CN106002176B - A kind of automatic oiling press fitting of rubber bushing and closed loop press fitting compensation system and method - Google Patents

Abstract

The invention discloses a kind of automatic oiling press fitting of rubber bushing and closed loop press fitting compensation system, position sensor, floating spring mechanism, rubber bushing pressure head and rubber bushing including housing, for detecting compression distance and position, the rubber bushing is located on rubber bushing pressure head, it is connected between the position sensor and floating spring mechanism, connection is controlled between the rubber bushing pressure head and rubber bushing, the housing is located at the rubber bushing pressure head, the top of rubber bushing.By the above-mentioned means, the automatic oiling press fitting of rubber bushing provided by the invention and closed loop press fitting compensation system, the autolearn feature of program, it is possible to reduce the number of press fitting, so as to save the beat of equipment.

Description

A system and method for automatic oiling and press-fitting of rubber bushings and closed-loop press-fitting compensation

technical field

The invention relates to an automatic oiling press-fitting and closed-loop press-fitting compensation system for rubber bushes, in particular to an automatic oiling press-fitting and closed-loop press-fitting compensation system and method for rubber bushes.

Background technique

Bushing press-fitting needs to ensure fast press-fitting to the specified hole position of the housing, and the press-fitting depth is within the set tolerance range. At present, private service presses are used to control the pressing. Because the rubber is elastic, after pressing to a specified depth and releasing the pressure, the rubber will rebound, and it is necessary to repeat the pressing to ensure that the specified depth is finally ensured. However, this process lasts for a long time, and the beat of the entire production line cannot be guaranteed. Moreover, the depth of press-fitting varies greatly. The capacity of the press-fitting process is insufficient, and the one-time pass rate is not high, resulting in long press-fitting time and waste of bushings. many.

Contents of the invention

The technical problem mainly solved by the present invention is how to provide an automatic learning function of the program, which can reduce the number of times of press-fitting, thereby saving the beat of the equipment.

In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a rubber bushing automatic oiling press fitting and closed-loop press fitting compensation system, including: a housing, a position sensor for detecting the depth and position of the pressing, Floating spring mechanism, rubber bushing head and rubber bushing, the rubber bushing is located on the rubber bushing head, the position sensor is connected with the floating spring mechanism, the rubber bushing head is connected to the rubber bushing The control connection between the sleeves, the housing is located at the top of the rubber bush pressure head and rubber bush.

In a preferred embodiment, the rubber bush automatic oiling press-fitting and closed-loop press-fitting compensation system also includes a bushing oiling mechanism, and the bushing oiling mechanism is connected to the position sensor for control, the The bush oiling mechanism automatically coats the surface of the rubber bush with lubricating oil.

In a preferred embodiment, the automatic oiling press-fitting and closed-loop press-fitting compensation system of the rubber bush further includes a press-in stopper, and the press-in stopper is located at the bottom of the rubber bush.

In a preferred embodiment, the automatic oiling press-fitting and closed-loop press-fitting compensation system for the rubber bush further includes a sliding table cylinder, and the control connection between the sliding table cylinder and the position sensor is provided.

A method for automatic oiling, press-fitting and closed-loop press-fitting compensation of rubber bushes, including the automatic oiling, press-fitting and closed-loop press-fitting compensation system for rubber bushes, and the following steps:

S1: Manually place the rubber bushing on the rubber indenter, press in the stopper to tighten the shell, and press the rubber bushing head to the specified position of the specified depth of the shell.

S2: After the first press-in, the sliding table cylinder is stretched out, and the position sensor is driven to detect the press-in depth and position, compared with the standard value, and the first press head arrival position, rubber bushing rebound position, and difference are recorded in the middle is the amount of rebound,

S3: When pressing in for the second time, add to the set position and add the rebound amount of the first time, the position sensor continues to detect, and judge whether the pressing position is within the tolerance, if it is, stop pressing, if not , continue to push in with the same logic until the pressed position meets the requirements.

The beneficial effect of the invention is: the automatic learning function of the program can reduce the times of press-fitting, thereby saving the beat of the equipment.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work, wherein:

Fig. 1 is a schematic structural view of a specific embodiment of the automatic oiling press-fitting and closed-loop press-fitting compensation system for rubber bushes of the present invention;

Fig. 2 is a schematic structural diagram of a specific embodiment of the rubber bushing automatic oiling press-fitting and closed-loop press-fitting compensation system including the bushing oiling mechanism of the present invention;

Fig. 3 is a schematic structural view of a specific embodiment of the automatic oiling press-fitting and closed-loop press-fitting compensation system for rubber bushes of the present invention, which includes a slide cylinder.

detailed description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-3. In a specific embodiment of the present invention, a rubber bushing automatic oiling press fitting and closed-loop press fitting compensation system is provided. The rubber bushing automatic oiling press fitting and closed-loop press fitting compensation The system includes: a housing 1, a position sensor 2 for detecting the pressing depth and position, a floating spring mechanism 3, a rubber bushing head 4 and a rubber bushing 5, and the rubber bushing 5 is located on the rubber bushing head 4 Above, the position sensor 2 is connected with the floating spring mechanism 3, the rubber bushing head 4 is connected with the rubber bushing 5, and the housing 1 is located at the rubber bushing head 4, The top of the rubber bushing.

The rubber bushing automatic oiling press-fitting and closed-loop press-fitting compensation system also includes a bushing oiling mechanism 6, the bushing oiling mechanism 6 is connected with the position sensor 2, and the bushing oiling mechanism 6 The surface of the rubber bushing 5 is automatically coated with lubricating oil.

The automatic oiling press-fitting and closed-loop press-fitting compensation system of the rubber bush also includes a press-in stopper 7, and the press-in stopper 7 is located at the bottom of the rubber bush.

The automatic oiling press-fitting and closed-loop press-fitting compensation system for the rubber bush also includes a slide cylinder 8 , which is connected to the position sensor 2 for control.

A rubber bushing automatic oiling press fitting and closed-loop press fitting compensation method, comprising the rubber bushing automatic oiling press fitting and closed-loop press fitting compensation system, including the following steps:

S1: Manually place the rubber bushing on the rubber indenter, press in the stopper 7 to compress the housing 1, press the rubber bushing indenter 4 to the designated position of the designated depth of the housing 1,

S2: After the first press-in, the sliding table cylinder 8 extends out, driving the position sensor 2 to detect the press-in depth and position, and compares it with the standard value, and records the arrival position of the first press head and the rebound position of the rubber bush in the middle. The difference is the amount of rebound,

S3: When pressing in for the second time, add to the set position and add the rebound amount of the first time, the position sensor 2 continues to detect, and judge whether the pressing position is within the tolerance, if it is, stop pressing, if If not, continue to push in with the same logic until the pressed position meets the requirements.

In a specific embodiment, when the rubber bushing 5 is press-fitted, the friction coefficient of the rubber and the aluminum hole is relatively large, so the surface of the rubber bushing 5 is automatically coated with lubricating oil before the press-fitting process to reduce the friction between the rubber and the aluminum hole during the press-fitting process. coefficient of friction. Ensure that the depth of the first pressing is very stable.

Design the press-fit learning program. Each batch of press-fit bushes has a different elastic coefficient. When pressing the first bush, set the target press-in position A, and record the depth position A1 of the first press-in And the pressing-out position B1 of the other end, the depth position A2 of the second pressing-in and the pressing-out position B2 of the other end...until the pressing fit is in place. During this period, the rebound amount R1, R2, ... after each pressing will be calculated and recorded. When pressing in the second bushing, adjust the first press-in position according to the rebound amount of the first press-in: A1+R1, and the press-out position of the other end: X. Compare whether X is in position A Within the tolerance, if it is, stop the press-fitting, if not, repeat the above process until the press-fitting reaches the specified position.

The program design and algorithm are as follows:

Set the origin position TP, device variable ADD, #1 push in, LVDT records the push out position of the other end, and compare with the origin position:

If the LVDT is greater than the upper tolerance limit, overvoltage, scrapped;

If the LVDT is less than the lower limit of the tolerance, and the pressure is not in place, continue to press and install;

If the LVDT is within tolerance, the press fit is complete.

Therefore, the present invention has the following advantages: the automatic learning function of the program can reduce the times of press-fitting, thereby saving the beat of the equipment.

The above descriptions are only examples of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the description of the present invention, or directly or indirectly used in other related technical fields, shall be The same reasoning is included in the patent protection scope of the present invention.

Claims (1)

1. A rubber bushing automatic oiling press-fitting and closed-loop press-fitting compensation method, including a rubber bushing automatic oiling press-fitting and closed-loop press-fitting compensation system, including: a shell (1), which is used to detect the press-in depth and The position sensor (2), the floating spring mechanism (3), the rubber bushing head (4) and the rubber bushing (5), the rubber bushing is located on the rubber bushing head, the position sensor and the floating The spring mechanism is connected to each other, the rubber bushing pressure head is connected with the rubber bushing, the housing is located on the top of the rubber bushing head and the rubber bushing, and the rubber bushing is automatically oiled The press-fit and closed-loop press-fit compensation system also includes a bushing oiling mechanism (6), which is connected to the position sensor in a controlled manner, and the bushing oiling mechanism automatically coats the surface of the rubber bushing with Lubricating oil, the rubber bushing automatic oiling press-fitting and closed-loop press-fitting compensation system also includes a press-in stopper (7), the press-in stopper is located at the bottom of the rubber bushing, and the rubber bushing The automatic oiling press-fitting and closed-loop press-fitting compensation system also includes a sliding table cylinder (8), and the control connection between the sliding table cylinder and the position sensor is characterized in that it includes the following steps: S1: Manually place the rubber bushing To the rubber bushing head, press the stopper to press the shell, and the rubber bushing head presses the bushing to the specified depth and position of the shell. S2: After the first press, the sliding table cylinder extends and drives The position sensor detects the pressing depth and position, and compares it with the standard value. In the middle, it records the arrival position of the rubber bushing head for the first time, and the rebound position of the rubber bushing. The difference is the amount of rebound. S3: The second pressing When it is added to the set position and the first rebound amount is added, the position sensor continues to detect and judge whether the press-in position is within the tolerance. If it is, stop the press-in. If it is not, continue to continue with the same logic Press in until the press-in position meets the requirements.