CN209288826U - A four-axis jig for CNC machine tools - Google Patents

Abstract

The utility model discloses a four-axis tool for a numerical control machine tool, which comprises a bottom plate, wherein both sides of the upper surface of the bottom plate are fixedly connected with a supporting plate, the upper surface of the supporting plate is provided with a positioning pin hole, the inner side surface of the positioning pin hole is connected with a lower panel in a sliding way through a positioning pin shaft, the upper surface of the lower panel is provided with a lower fixing hole, both sides of the inner part of the lower panel are provided with wide guide grooves, the upper surface of the lower panel is connected with an upper panel in a sliding way, the lower surface of the upper panel is provided with an upper fixing hole, the upper surface of the upper panel is provided with a handle, both sides of the lower surface of the upper panel are provided with connecting grooves, the inner side surfaces of the connecting grooves are hinged with guide rods through hinged shafts, the outer surfaces of the guide rods are connected with the inner side surfaces, therefore, the convenience and the stability of use can be greatly improved, and the clamping and positioning efficiency is ensured.

Description

A four-axis jig for CNC machine tools

technical field

The utility model relates to the technical field of fixtures for machine tools, in particular to a four-axis fixture for numerically controlled machine tools.

Background technique

A fixture is a positioning module widely used in industrial production. For various parts in production, it is generally necessary to use fixtures for positioning.

The utility model of authorized notification number CN 207616185 U discloses a new type of four-axis fixture for CNC machining parts, including a fixture bottom plate, and fixture support plates are arranged on both sides of the fixture bottom plate, and the fixture bottom plate is provided with a The clamping drive cylinder between the two jig support plates, the jig panel is provided on the upper part of the jig support plate, the jig panel is provided with a sliding guide post, and the sliding guide post is provided with a sliding guide post. The fixture cover slides on the column. The output end of the clamping drive cylinder passes through the fixture panel and is connected to the fixture cover. The clamping drive cylinder can drive the fixture cover to slide on the sliding guide column And cover it tightly on the jig panel, the jig panel is provided with a positioning recess for positioning the workpiece, and the lower part of the jig cover is provided with a positioning for pressing the workpiece on the positioning recess. Although the pressing block and the modified jig can clamp and position the workpiece, there are still some shortcomings in actual use. For example, the cylinders on both sides need to be lifted and clamped synchronously. The upper panel is placed obliquely, so that the lifting distance is small, it is inconvenient to clean the positioning hole and the clamping surface, which affects the stability. At the same time, when clamping and loosening, the cylinder will be released directly after extending, which will easily cause the workpiece to be elastic. Movement, poor safety and stability, and the lower panel is not convenient for positioning and installation, and it is inconvenient to use.

Utility model content

The purpose of this utility model is to provide a four-axis jig for a numerically controlled machine tool to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a four-axis fixture for CNC machine tools, including a base plate, both sides of the upper surface of the base plate are fixedly connected with support plates, and the upper surface of the support plate A positioning pin hole is provided, and the inner surface of the positioning pin hole is slidingly connected with a lower panel through a positioning pin shaft. The upper surface of the lower panel is provided with a lower fixing hole, and both sides of the inner side of the lower panel are provided with wide guides. groove;

The middle position of the lower surface of the lower panel is provided with a first mounting frame, and the lower surface of the first mounting frame is fixed with a second mounting frame through mounting bolts, and the second mounting frame is fixedly connected to the upper surface of the bottom plate;

The upper surface of the lower panel is slidably connected with an upper panel, the lower surface of the upper panel is provided with an upper fixing hole, the upper surface of the upper panel is provided with a handle, and both sides of the lower surface of the upper panel are provided with A connection groove, the inner surface of the connection groove is hinged with a guide rod through a hinge shaft, and the outer surface of the guide rod is slidably connected to the inner surface of the wide guide groove.

Preferably, the inner lower end of the guide rod is provided with an upper buffer groove, the lower end of the outer surface of the guide rod is provided with a connecting threaded sleeve, and the inner surface of the connecting threaded sleeve is threadedly connected to the connecting rod through a connecting threaded ring.

Preferably, the inner upper end of the connecting rod is provided with a lower buffer groove, the inner bottom surface of the lower buffer groove is provided with a spring groove, the inner surface of the lower buffer groove is slidably connected with a pull rod, and the lower end of the outer surface of the pull rod slides A buffer spring is attached to the sleeve, and a driving cylinder is fixedly connected to the lower surface of the pull rod, and the lower surface of the driving cylinder is hingedly connected to both sides of the upper surface of the bottom plate.

Preferably, the inner surface of the wide guide groove is provided with a guide hole, the inner surface of the guide hole is fixedly installed with a retaining ring, the inner surface of the retaining ring is slidably connected with a tightening rod, and the outer side of the tightening rod The end head is rollingly connected to the outer surface of the guide rod through a pinch wheel.

Preferably, the inner end of the tensioning rod is provided with a positioning connection groove, the inner surface of the positioning connection groove is slidably connected with a tensioning spring, and the front end surface of the tensioning spring is slidably connected to the inner bottom surface of the guide hole.

Compared with the prior art, the beneficial effect of the utility model is that the four-axis jig used for the CNC machine tool is hinged to the upper panel through the guide rod, and can be rotated at an angle, which is convenient to be driven by a single cylinder, and the upper panel can be placed obliquely. It is easy to clean, and at the same time, the spring-tight top wheel is used to assist the guide to avoid offset and misalignment. At the same time, the connecting rod is threaded at the lower end of the guide rod. Combined with the rod structure connected by the internal buffer spring, the upper panel can be pulled after the cylinder is slightly loosened. The driving stroke is reduced, and it will not interfere with loading and unloading, and the lower panel is positioned by the positioning pin shaft, which is convenient for installation and positioning, and avoids misalignment, which can greatly improve the convenience and stability of use, and ensure the efficiency of clamping and positioning.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the schematic cross-sectional view of connecting rod connection of the utility model;

Fig. 3 is a partial schematic diagram of the connection of the top tension wheel of the present invention.

In the figure: 1 bottom plate, 11 support plate, 12 positioning pin hole, 13 positioning pin shaft, 14 lower panel, 15 lower fixing hole, 16 wide guide groove, 17 first mounting frame, 18 mounting bolt, 19 second mounting frame, 2 upper panel, 21 upper fixing hole, 22 handle, 23 connecting groove, 24 hinge shaft, 25 guide rod, 3 upper buffer groove, 31 connecting thread sleeve, 32 connecting thread ring, 33 connecting rod, 34 lower buffer groove, 35 spring grooves, 36 pull rods, 37 buffer springs, 38 drive cylinders, 4 guide holes, 41 retaining rings, 42 jacking rods, 43 jacking wheels, 44 positioning connection grooves, 45 jacking springs.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a four-axis fixture for CNC machine tools, including a base plate 1, both sides of the upper surface of the base plate 1 are fixedly connected with support plates 11, the support plate 11 The upper surface of the upper surface is provided with a positioning pin hole 12, and the inner surface of the positioning pin hole 12 is slidably connected with the lower panel 14 through the positioning pin shaft 13, which is convenient for positioning and connection, ensures position stability and accuracy, and avoids misalignment. The upper surface of the lower panel 14 is provided with The lower fixing hole 15 and the inner two sides of the lower panel 14 are provided with wide guide grooves 16, which are wider and can be guided by the narrower guide rods 25 on both sides. Stability of panel 2 tilt adjustment;

The middle position of the lower surface of the lower panel 14 is provided with a first mounting frame 17, and the lower surface of the first mounting frame 17 is fixedly installed with a second mounting frame 19 through mounting bolts 18, and the second mounting frame 19 is fixedly connected to the upper surface of the base plate 1 , to facilitate installation and positioning, to avoid interference;

The upper surface of the lower panel 14 is slidably connected with the upper panel 2, and the lower surface of the upper panel 2 is provided with an upper fixing hole 21, which can be combined with the lower fixing hole 15 to clamp rods, four positions can clamp four shafts, and the stability Efficient, the upper surface of the upper panel 2 is provided with a handle 22, and both sides of the lower surface of the upper panel 2 are provided with connecting grooves 23, and the inner surface of the connecting groove 23 is hinged with a guide rod 25 through a hinge shaft 24, which can be downward The upper panel 2 is tightened to ensure the stability of clamping and positioning, and the outer surface of the guide rod 25 is slidably connected to the inner surface of the wide guide groove 16 .

The inner lower end of the guide rod 25 is provided with an upper buffer groove 3, and the lower end of the outer surface of the guide rod 25 is provided with a connecting threaded sleeve 31, and the inner surface of the connecting threaded sleeve 31 is threadedly connected with a connecting rod 33 through a connecting threaded ring 32, which is convenient for combined connection. Avoid interference, easy to disassemble and maintain.

The inner upper end of the connecting rod 33 is provided with a lower buffer groove 34, the inner bottom surface of the lower buffer groove 34 is provided with a spring groove 35, and the inner surface of the lower buffer groove 34 is slidingly connected with a pull rod 36, and the lower end of the outer surface of the pull rod 36 is slidingly sleeved with a buffer Spring 37, the lower surface of pull rod 36 is fixedly connected with drive cylinder 38, and the lower surface of drive cylinder 38 is hingedly connected to the upper surface both sides of base plate 1, and this also can pull pull rod 36 downwards by drive cylinder 38 contraction, and then can The buffer spring 37 is all compressed into the spring groove 35 to avoid elastic connection, so the connecting rod 33 can be rigidly connected to improve the stability of clamping and positioning. Open, at this moment, the connecting rod 33 is pressed down by the buffer spring 37, which can assist in pressing, avoiding unclamping too fast, and ensuring safety and stability.

The inner surface of the wide guide groove 16 is provided with a guide hole 4, the inner surface of the guide hole 4 is fixedly equipped with a retaining ring 41, the inner surface of the retaining ring 41 is slidingly connected with a push-up rod 42, and the outer end of the push-up rod 42 passes through the top The tightening wheel 43 is rollingly connected to the outer surface of the guide rod 25, so that the guide rod 25 can be pressed and guided, and can be avoided to avoid misalignment and interference, and improve the safety and stability of the adjustment.

The inner end of the top tight rod 42 is provided with a positioning connection groove 44, and the inner surface of the positioning connection groove 44 is slidably connected with a top tension spring 45. Tight, guarantee guiding stability, can compress and hold back spring 45 and avoid at the same time, avoid interference.

When the utility model is actually implemented: when in use, the rod can be inserted into the lower fixing hole 15, and then the driving cylinder 38 is controlled to shrink, and the pull rod 36 is pulled downward, so that the buffer spring 37 can be fully compressed into the spring groove 35 to avoid Elastic connection, so it can be rigidly connected to tighten the connecting rod 33, and the upper panel 2 can be tightened downwards through the guide rod 25, and then combined with the upper fixing hole 21 to fix the rod, improving the stability of clamping and positioning, and at this time , the tightening spring 45 squeezes the tightening rod 42 outwards, and the side of the guide rod 25 is tightened by the tightening wheel 43, which will not interfere with the up and down sliding, and at the same time, the side position can be limited to avoid misalignment and improve stability. When it is opened, the driving cylinder 38 stretches out, which is to press the connecting rod 33 downwards through the buffer spring 37, which can assist in pressing, avoiding excessive loosening speed, ensuring safety and stability, and then manually pulling the upper handle 22. The panel 2 can be loosened and taken out, which is safe and efficient. At the same time, when it needs to be cleaned, the drive cylinder 38 on one side can be independently driven to extend, so that one side of the upper panel 2 can be pushed up, and the tilt can be changed by the rotation of the hinge shaft 24 At the same time, the guide rod 25 moves upwards and laterally in the wide guide groove 16. By driving the cylinder 38, it also rotates to avoid interference, and then lifts the upper panel 2 on one side, increasing the distance between it and the lower panel 14 for easy cleaning. , At the same time, it does not need to be lifted on both sides to increase the stroke, which is stable and efficient.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of four axis jigs for numerically-controlled machine tool, including bottom plate (1), it is characterised in that: the upper surface two of the bottom plate (1) Side is fixedly connected to support plate (11), and the upper surface of the support plate (11) is equipped with dowel hole (12), the dowel hole (12) inner surface is slidably connected lower panel (14) by alignment pin (13), and the upper surface of the lower panel (14) is equipped with The inside two sides of lower fixed hole (15), the lower panel (14) are equipped with wide guide groove (16)；

The lower surface middle position of the lower panel (14) is equipped with the first mounting rack (17), the following table of first mounting rack (17) Face is fixedly installed with the second mounting rack (19) by installing bolt (18), and second mounting rack (19) is fixedly connected on bottom plate (1) upper surface；

The upper surface slide of the lower panel (14) is connected with top panel (2), and the lower surface of the top panel (2) is equipped with upper fixation The upper surface in hole (21), the top panel (2) is equipped with handle (22), and the lower surface two sides of the top panel (2) are equipped with connection The inner surface of groove (23), the connecting groove (23) is hinged with guide rod (25), the guide rod by articulated shaft (24) (25) outer surface is slidably connected to the inner surface of wide guide groove (16).

2. a kind of four axis jigs for numerically-controlled machine tool according to claim 1, it is characterised in that: the guide rod (25) Interior lower end be equipped with upper dashpot (3), the outer surface lower end of the guide rod (25) is equipped with connection screw thread set (31), the company The inner surface for connecing thread bush (31) is threaded with connecting rod (33) by connection screw thread ring (32).

3. a kind of four axis jigs for numerically-controlled machine tool according to claim 2, it is characterised in that: the connecting rod (33) Inner upper end be equipped with lower dashpot (34), the inner bottom surface of the lower dashpot (34) is equipped with spring groove (35), described lower slow The inner surface of jet-bedding (34) slidably connects pull rod (36), and the outer surface lower end sliding sleeve of the pull rod (36) has buffering elastic Spring (37), the lower surface of the pull rod (36) are fixedly connected with driving cylinder (38), the lower surface hinge of driving cylinder (38) It is connected to the upper surface two sides of bottom plate (1) in succession.

4. a kind of four axis jigs for numerically-controlled machine tool according to claim 1, it is characterised in that: the width guide groove (16) inner surface is equipped with pilot hole (4), and the inner surface of the pilot hole (4) is fixedly installed with baffle ring (41), the gear The inner surface of ring (41) slidably connects top-fastening rod (42), and the outside end of the top-fastening rod (42) is by holding out against wheel (43) rolling The dynamic outer surface for being connected to guide rod (25).

5. a kind of four axis jigs for numerically-controlled machine tool according to claim 4, it is characterised in that: the top-fastening rod (42) Inside end be equipped be located by connecting slot (44), the inner surface of the slot that is located by connecting (44), which slidably connects, holds out against spring (45), the front-end surface for holding out against spring (45) is slidably connected to the inner bottom surface of pilot hole (4).