CN201665022U - Guide rail device of press ram sliding block - Google Patents

Abstract

A guide rail device of a press ram sliding block relates to the improvement on the press ram sliding block and a guiding device. When the sliding block deforms owing to the thermal expansion, the guide rail gap does not need to be adjusted, thus guaranteeing the device to continuously move in an adjusting accuracy way. The guide rail device is fixedly connected with the machine body of the press ram; the sliding block is movably connected with the guide rail device and comprises guide arms, a guide pillar and a guide seat; the guide arm is arranged on four corners of the sliding block and respectively and outwards extend; the guide pillar is arranged on the end head of the guide arm; the guide pillar is parallel to the axis of the sliding block; the guide seat is fixedly connected on the machine body and is provided with a pair of guide surfaces which are mutually parallel; and the guide pillar is movably connected between a pair of guide surfaces. After the sliding block deforms owing to the thermal expansion, the endpoint positions of the guide arms will change; as the guide pillar at the end of the guide arms is constrained by a pair of guide surfaces, therefore, the vertical guide pillar can freely move in a translational way under the constraint of the pair of guide surfaces and then adapts to the elongation or shortening of the guide arm. The guide rail device can keep the guiding accuracy for a long time when being used for a high-speed precision punching machine.

Description

The track-type facilities of press ram

Technical field

The utility model relates to the improvement to press ram and guider.

Background technology

In real work, we find that the forcing press of heavy duty, high-frequency operation after work a period of time, the phenomenon of slide block operation retardance can occur.Its reason is after work a period of time, because slide block bottom surface middle part can generate heat when carrying heavy load, high frequency load, causes slide block thermal deformation to occur, cause and guide rail between gap smaller.At present, in concrete work, the way that solves this type of problem is before processing, amplify guide clearance, or work in-process in time adjusts guide clearance, carries out work (especially on the automatic press processing line, continuous operation is particularly important) normally, continuously to guarantee the pressure function.But, when the processing beginning,, can cause the precise decreasing of equipment like this because guide clearance is excessive, can not adapt to precision machined requirement; Adjust in the processing, can cause production line to pause, and strengthen attendant's labour intensity.

Summary of the invention

The utility model is at above problem, provide a kind of and when slide block heat rises by distortion, need not to carry out the guide clearance adjustment, thereby guarantee equipment can be continuously with the track-type facilities of the press ram of adjusting accuracy operation.

The technical solution of the utility model is: described track-type facilities is fixedly connected on the press frame, and described slide block and track-type facilities are movably connected, and it also comprises leading arm, guide pillar and guide holder; Described leading arm is located at four jiaos of described slide block, stretches out laterally respectively; Described guide pillar is located at the termination of described leading arm, and guide pillar is parallel with the axis of slide block; Described guide holder is fixedly connected on the fuselage, which is provided with a pair of spigot surface that is parallel to each other, and described guide pillar is movably connected between the described a pair of spigot surface.

It also comprises guide pin bushing, and described a pair of spigot surface is located on the guide pin bushing, and described guide pin bushing is fixedly connected on the guide holder.

The utility model has changed the tradition of five frees degree of the slide block of guide rail mechanism immediate constraint in the past; On the whole,,, remain five frees degree that retrained slide block because the effect of cross one another leading arm is arranged with respect to slide block, but for single leading arm, then frees degree that kept a length direction more.Specifically, after thermal deformation appearred in slide block, changing can appear in the leading arm endpoint location, because the guide pillar of leading arm end is retrained by a pair of spigot surface, therefore, the translation under a pair of spigot surface constraint freely of upright guide pillar, and then adapt to elongating or shortening of leading arm.The utility model uses on dieing machine, can keep guiding accuracy not change for a long time.

Description of drawings

Fig. 1 is a structural representation of the present utility model

1 is guide holder among the figure, the 2nd, and guide pin bushing, the 3rd, guide pillar, the 4th, slide block;

Fig. 2 is an A-A cutaway view among Fig. 1

5 is middle parts, slide block bottom surface among the figure, the 6th, and mould, the 7th, leading arm, the 8th, fuselage.

The specific embodiment

The utility model as shown in Figure 1, 2, track-type facilities is fixedly connected on the press frame 8, described slide block 4 is movably connected with track-type facilities, it also comprises leading arm 7, guide pillar 3 and guide holder 1; Described leading arm 7 is located at four jiaos of described slide block 4, stretches out laterally respectively; Described guide pillar 3 is located at the termination of described leading arm 7, and guide pillar 3 is parallel with the axis of slide block 4; Described guide holder 1 is fixedly connected on the fuselage 8, which is provided with a pair of spigot surface that is parallel to each other, and described guide pillar 3 is movably connected between the described a pair of spigot surface.

It also comprises guide pin bushing 2, and described a pair of spigot surface is located on the guide pin bushing 2, and described guide pin bushing 2 is fixedly connected on the guide holder 1.

The utility model operation principle is: mould 6 is connected on slide block and the workbench, in the long-term work, act on the impact load that enormous pressure is arranged, can make slide block 4 former thereby heating because of pressure at middle part, slide block bottom surface 5, cause slide block 4 distortion, in the horizontal, distortion can make slide block 4 broaden, and the amount of broadening can be embodied in the variation of leading arm 7 end points, because guide pillar 3 has freedom of motion on leading arm 7 axis directions, therefore, the slide block wide variety that thermal deformation causes can not exert an influence to the slide block overall operation.

Claims (2)

1. the track-type facilities of press ram, described track-type facilities is fixedly connected on the press frame, and described slide block and track-type facilities are movably connected, and it is characterized in that, and it also comprises leading arm, guide pillar and guide holder; Described leading arm is located at four jiaos of described slide block, stretches out laterally respectively; Described guide pillar is located at the termination of described leading arm, and guide pillar is parallel with the axis of slide block; Described guide holder is fixedly connected on the fuselage, which is provided with a pair of spigot surface that is parallel to each other, and described guide pillar is movably connected between the described a pair of spigot surface.

2. the track-type facilities of press ram according to claim 1 is characterized in that, it also comprises guide pin bushing, and described a pair of spigot surface is located on the guide pin bushing, and described guide pin bushing is fixedly connected on the guide holder.

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