CN102398149B - Press mounting clamping and positioning mechanism - Google Patents

Abstract

The invention discloses a press mounting clamping and positioning mechanism, which is characterized in that: a gas-liquid pressure cylinder is fixedly arranged at the central position of a pressure cylinder connecting plate; guide sleeves which are symmetrically arranged on two sides of the gas-liquid pressure cylinder are fixed on the pressure cylinder connecting plate; a pressure head mounting plate is positioned below the pressure cylinder connecting plate; a floating joint base is fixedly arranged on the pressure head mounting plate; one end of a floating joint is fixedly arranged in the floating joint base, and the other end of the floating joint is connected with the gas-liquid pressure cylinder; guide posts which can slide up and down in the guide sleeves are fixedly arranged on the pressure head mounting plate; a pressure head is fixedly arranged at the central position of the bottom of the pressure head mounting plate; upper sections of longitudinal guide grooves of a pair of clamping arms are vertical guide grooves, lower sections are inclined guide grooves, and the inclined guide grooves on the lower sections on the clamping arms on two sides are splayed; and the inner end of a clamping rod faces the central position where the pressure head is positioned, and a rotating shaft arranged in a shaft hole at the outer end of the clamping rod is in sliding fit with the longitudinal guide grooves of the clamping arms. The press mounting clamping and positioning mechanism has a simple structure and low running cost, is reliably moved and can be directly used for on-line equipment.

Description

Press-fit clamping positioning mechanism

technical field

The invention relates to a press-fitting and clamping positioning mechanism, more specifically, a positioning mechanism for preventing the transmission shaft from tilting during the press-fitting process of gears and synchronizers in a 4AT gearbox, especially applied on an automobile assembly line .

Background technique

In the automobile assembly industry, with the improvement of the comprehensive performance requirements of automobiles and the improvement of production efficiency, the requirements for the automation of automobile assembly lines are getting higher and higher. At present, for the press-fitting process of gears and synchronizers in 4AT gearboxes, fixtures are generally installed on the corresponding stations of the line body. This method has complex actions in actual operation, low reliability of the mechanism, and long takt time of the station, which affects the production speed of the entire line; another method in the prior art is to take the work of some stations outside the line to complete , and increase the number of special presses, and then transport back to the line body after the press is completed. In this way, several presses need to run in parallel to ensure the working rhythm, and the operating cost is relatively high.

Contents of the invention

The purpose of the present invention is to avoid the shortcomings of the above-mentioned prior art, and provide a press-fit clamping and positioning mechanism that can effectively save time, have reliable clamping and positioning actions, significantly improve production efficiency, reduce labor intensity and reduce costs.

The present invention adopts following technical scheme for solving technical problems:

The structural features of the press-fitting and clamping positioning mechanism of the present invention are:

The gas-liquid booster cylinder is fixed on the central position of the cylinder connecting plate, and on both sides of the gas-liquid booster cylinder, symmetrically arranged guide sleeves are fixed on the cylinder connecting plate by screws;

The pressure head mounting plate is located below the pressure cylinder connecting plate, the floating joint seat is fixedly arranged on the pressure head mounting plate, one end of the floating joint is fixedly disposed in the floating joint seat, and the other end is connected with the gas-liquid booster cylinder, which can The guide column that slides up and down in the guide sleeve is fixed on the pressure head mounting plate; the pressure head is fixed on the bottom center of the pressure head mounting plate, and the connecting column connects the cylinder connecting plate and the bottom clamping and fixing plate to form a frame structure ; A pair of clamping arms with longitudinal guide grooves are fixed on both sides of the mounting plate connecting the pressure head. The lower inclined guide groove on the arm is in the shape of "eight";

The splint formed by the clamping slide and the gland is fixedly arranged on the clamping plate, the clamping rod slides and fits in the splint, the inner end of the clamping rod faces the center of the pressure head, and can pass through The side waist hole of the indenter is against the side of the workpiece located in the indenter; a rotating shaft is arranged in the outer end shaft hole of the clamping rod, and the rotating shaft is slidably fitted in the longitudinal guide groove of the clamping arm.

The structural features of the pressing and clamping positioning mechanism of the present invention also lie in:

A sliding sleeve is arranged on the guide sleeve, and the guide column is slidably fitted in the sliding sleeve, and the sliding sleeve is fixed in the guide sleeve by an elastic circlip for a hole.

A spacer is sleeved on the rotating shaft, and the spacer is slidably fitted in the longitudinal guide groove of the clamping arm.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

1. The present invention is a mechanical mechanism with simple structure, reliable operation and low operating cost, and can be directly used in online equipment;

2. The present invention can adjust the size of the pressure head, the clamping arm and the connecting column according to the length of the press-fitting stroke, adjust the length of the clamping rod to adjust the clamping width, so as to meet the requirements of different occasions and be widely used.

Description of drawings

Fig. 1 is a schematic diagram of the assembly structure of the present invention;

Fig. 2 is a schematic diagram of the press-fitting and clamping state of the present invention;

Symbols in the figure: 1 sliding sleeve; 2 guide sleeve; 3 pressure cylinder transition seat; 4 pressure cylinder connection plate; 5 floating joint; 6 floating joint seat; 7 guide column; 8 pressure head mounting plate; 9 pressure head; Arm; 11 gland; 12 clamping rod; 13 rotating shaft; 14 clamping fixed plate; 15 clamping slide; 16 connecting column; 17 spacer; .

Detailed ways

Referring to Fig. 1 and Fig. 2, the structure of the press-fit clamping and positioning mechanism in this embodiment is set as follows:

The gas-liquid booster cylinder 18 is fixedly arranged on the central position of the pressure-cylinder connection plate 4 through the pressure-cylinder transition seat 3, and on both sides of the gas-liquid booster cylinder 18, the symmetrically arranged guide sleeves 2 are fixed on the pressure-cylinder connection plate by screws 4 on;

The pressure head mounting plate 8 is located below the pressure cylinder connecting plate 4, the floating joint seat 6 is fixedly arranged on the pressure head mounting plate 8, one end of the floating joint 5 is fixedly arranged in the floating joint seat 6, and the other end is connected with the gas-liquid booster cylinder 18, the guide column 7 that can slide up and down in the guide sleeve 2 is fixed on the indenter mounting plate 8; the indenter 9 is fixed on the bottom center of the indenter mounting plate 8, and the connecting column 16 connects the cylinder The plate 4 is connected with the bottom clamping and fixing plate 14 to form a frame structure; a pair of clamping arms 10 with longitudinal guide grooves are fixedly connected to both sides of the indenter mounting plate 8, and the upper section of the longitudinal guide groove of the clamping arms 10 is vertical Section guide groove, the lower section is an inclined guide groove, and the lower section inclined guide groove on the clamping arms 10 on both sides is in the shape of "eight";

The splint formed by the clamping slide 15 and the gland 11 is fixedly arranged on the clamping fixed plate 14, the clamping rod 12 slides and fits in the clamping plate, and the inner end of the clamping rod 12 faces the center where the pressure head 9 is located, and can Pass through the side waist hole of the indenter 9 against the side of the workpiece 20 located in the indenter 9; a rotating shaft 13 is arranged in the outer end shaft hole of the clamping rod 12, and the rotating shaft 13 is in the longitudinal guide groove of the clamping arm 10 Medium slip fit.

The splint formed by the clamping slide 15 and the gland 11 is fixedly arranged on the clamping fixed plate 14, the clamping rod 12 slides and fits in the splint, the inner end of the clamping rod 12 faces the center position where the pressure head 9 is located, and clamps A rotating shaft 13 is arranged in the shaft hole of the outer end of the rod 12, a spacer 17 is set on the rotating shaft 13, and the end of the rotating shaft 13 is fixed with a shaft circlip 20 to prevent slipping out, and the spacer 17 is positioned in the longitudinal direction of the clamping arm 10. Slip fit in the channel.

In specific implementation, in order to make the guide smoother, a sliding sleeve 1 is provided on the guide sleeve 2, and the guide column 7 is slidably fitted in the sliding sleeve 1, and the sliding sleeve 1 is fixed in the guide sleeve 2 with an elastic retaining ring 19 for the hole. .

work process:

As the power source, the gas-liquid booster cylinder 18 drives the pressure head mounting plate 8 to move downward through the floating joint 5 and the floating joint seat 6, and the pressure head 9 and the clamping arm 10 move downward at the same time. The column 16 is connected with the cylinder connecting plate 4, so the clamping and fixing plate 14 is fixed. When the clamping arm 10 goes down, the inclined guide groove in the lower section first exerts pressure on the spacer 17, and the spacer 17 passes through the rotating shaft. 13 drives the clamping rod 12 to move horizontally in the splint, the clamping rod 12 passes through the waist hole on the side of the indenter and faces the workpiece 20 in the tube body of the indenter 9, and the indenter mounting plate 8 drives the indenter 9 and clamps The arm 10 continues to move downward, and when it moves to a suitable position, the clamping arm 10 enters the guide groove of the vertical section, the pressure head 9 continues to descend, and the clamping rod 12 keeps the clamping state of the workpiece 20 unchanged (as shown in Fig. 2 ). shown), until the press-fitting is completed, the pressure head 9 returns to the corresponding height, and the clamping rod 12 returns to the original position (as shown in Figure 1).

In specific implementation, the size of the pressure head 9, the clamping arm 10 and the connecting column 16 is adjusted according to the length of the pressing stroke; the size of the clamping rod 12 is adjusted according to the diameter of the workpiece 20, and the adjustable form enables the present invention to be widely used .

Claims (3)

1. press clamping location mechanism is characterized in that:

Pneumohydraulic pressure-cylinder (18) is fixedly installed on the center of cylinder pressure connecting plate (4), the both sides in described pneumohydraulic pressure-cylinder (18), and symmetrically arranged guide pin bushing (2) is fixed by screws on cylinder pressure connecting plate (4);

Pressure head installing plate (8) is positioned at the below of described cylinder pressure connecting plate (4), floating junction seat (6) is fixedly installed on pressure head installing plate (8), one end of floating junction (5) is fixedly installed in floating junction seat (6), the other end is connected with pneumohydraulic pressure-cylinder (18), and the lead (7) that can slide up and down in guide pin bushing (2) is fixedly installed on pressure head installing plate (8); Pressure head (9) is fixedly installed on the bottom centre position of pressure head installing plate (8), and joint pin (16) connects into a frame structure with cylinder pressure connecting plate (4) and the bottom plate (14) that is fixedly clamped; Be fixedly connected on the both sides of pressure head installing plate (8) with a pair of clamp arm (10) of vertical guide groove, vertical guide groove epimere of described clamp arm (10) is vertical section guide groove, hypomere is inclined guide groove, and the hypomere inclined guide groove on both sides clamp arm (10) is " eight " font;

Clamping slide (15) is fixedly installed on the plate that is fixedly clamped (14) with the clamping plate that gland (11) consists of, clamping bar (12) is slidably matched in described clamping plate, the inner end of described clamping bar (12) is towards the center at pressure head (9) place, and the sidepiece to the workpiece that is arranged in pressure head (9) (20) is supported in the sidepiece waist hole that can pass pressure head (9); Be provided with rotating shaft (13) in the outer end axis hole of clamping bar (12), described rotating shaft (13) is slidably matched in vertical guide groove of clamp arm (10).

2. press clamping location mechanism according to claim 1, it is characterized in that being provided with sliding sleeve (1) on described guide pin bushing (2), lead (7) is to be slidably matched in sliding sleeve (1), and described sliding sleeve (1) is to be fixed in guide pin bushing (2) with circlip for hole (19).

3. press clamping location mechanism according to claim 1, is characterized in that being set with spacer (17) in described rotating shaft (13), is slidably matched in vertical guide groove of clamp arm (10) with described spacer (17).

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