CN105921891A - Tube supporting clamps - Google Patents

Abstract

The invention discloses a pipe supporting fixture, which is mainly suitable for a machine tool for cutting pipes, especially used in a plate and pipe integrated laser cutting machine. This clamp can support round and square tubes. Its main features are: the main body of the fixture is equipped with a linear bearing slider, which is used to move horizontally on the round steel guide rail of the machine tool; the lifting device is composed of thrust ball bearings, ball nuts, threaded shafts and lifting rods. The fixture can move vertically; the support plate with balls is used to support the pipe; the fixture adopts the self-locking principle of trapezoidal screw and set screw for vertical positioning, and uses rubber blocks for horizontal positioning.

Description

A pipe support fixture

technical field

The invention relates to a pipe support fixture, in particular to an auxiliary bed for holding pipes in a plate and pipe integrated laser cutting machine.

Background technique

Plate and tube integrated laser cutting machine is a laser cutting machine that can cut tube materials and plate materials at the same time. Built-in type and external type, the built-in type is to place the part of the pipe structure inside the entire bed; the external type is to place the part of the pipe structure outside the main bed separately, Called the auxiliary bed.

Currently on the market, most of the plate-tube integrated laser cutting machines use the auxiliary bed to place the pipe, and use the servo motor to directly drive the chuck and other fixtures to drive the workpiece to rotate; most of the auxiliary bed use a separate motion device to drive the workpiece along the The guide rail moves horizontally; the design of the fixture supporting the workpiece is complex and expensive, and although the precision is high, most of the machining accuracy of the pipe workpiece does not require very precision, and the high price does not meet the needs of customers; But the positioning function is missing, and the machining accuracy is too low.

Contents of the invention

In order to overcome the disadvantages of the above-mentioned prior art, the present invention provides a pipe support clamp. It solves the problems that the supporting fixture structure of the auxiliary bed is too complex, expensive, not strong in actual function, and excessively wasted.

The technical solution adopted in the present invention is: a pipe support fixture, the main body of the fixture is equipped with a linear bearing slider for horizontal movement on the round steel guide rail of the machine tool; thrust ball bearings, ball nuts and lock nuts are used , threaded shaft, sleeve, set screw and lifting rod, etc., constitute the lifting device, so that the fixture can move vertically; use the support plate equipped with balls to support the pipe; the fixture uses rubber blocks for horizontal position positioning According to the self-locking principle of the trapezoidal screw, the trapezoidal screw and the set screw are used for vertical positioning.

Compared with the prior art, the beneficial effects of the present invention are: 1. The structure design of the fixture is reasonable and simple, the processing difficulty is low, the cost is easy to control, and the processing accuracy meets the production requirements; 2. The present invention realizes the free level of the support fixture Movement and vertical movement, and corresponding limit device, the limit device is simple and practical, and meets the demand of work capacity.

Description of drawings

Figure 1 is a schematic diagram of the structure of the pipe support fixture in this design.

Figure 2 is a three-dimensional model diagram of the designed pipe support fixture.

Fig. 3 is a schematic diagram of an embodiment of the designed pipe support fixture.

In the figure: 1 manipulation hand wheel, 2 round nut, 3 linear bearing slider, 4 lower base plate, 5 upper base plate, 6 reinforcing rib, 7 sleeve, 8 lifting frame, 9 support plate, 10 ball, 11 oil cup , 12 set screws, 13 ball nuts, 14 threaded shafts, 15 thrust ball bearings, 16 end caps, 17 positioning pins, 18 rubber blocks, 19 rubber block fixing plates, 20 round tube workpieces, 21 chucks, 22 motors.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings, wherein the schematic embodiments and descriptions are only used to explain the present invention, but not as a limitation to the present invention.

As shown in Figure 1, a kind of pipe support fixture, 1 operating handwheel in its structure and described 14 threaded shafts, as shown in Figure 1, are assembled together by 17 positioning pins.

Two 2-round nuts described above are used to lock the lower end of the 14 threaded shaft to limit the upward movement of the threaded shaft and prevent the threaded shaft from leaving the correct position during transportation; the 15 thrust ball bearing and the 14 threaded shaft are adopted The shaft shoulder of the shaft is in contact with the 16 end cover, which limits the downward movement of the threaded shaft and breaks away from the normal working position.

Select the above-mentioned 3 linear bearing sliders to connect the round steel guide rails of the auxiliary bed; the upper part of the 3 linear bearing sliders is connected to the 4 lower base plate; the 4 lower base plate is connected to the 5 upper base plate; The ribs are connected with the 7 sleeves; thereby driving the entire fixture to move.

The 8 lifters are connected with the 13 ball nuts, and the 14 threaded shafts cooperate with the 13 ball nuts to form a screw nut pair, which is rotated by the 14 threaded shafts to push the 13 ball nuts to rise or fall; the 8 lifters are driven by the 13 ball nuts , moving in the vertical direction.

The 9 support plates are connected with the 8 lifting frame and moved up and down by the 8 lifting frame driver; there are processed grooves on the concave surface of the 9 support plate for placing the 10 balls, and the 10 balls are in contact with the 20 round tube workpieces, and are relatively sports.

The 11 oil cups can be used to inject lubricating oil while preventing external impurities from entering, so as to protect the internal structure from being damaged by excessive friction.

The 12 setscrews are used to cooperate with the long keyway on the 8 lifting frame to guide, so that the 8 lifting frame moves along the contour of the keyway; if the vibration of the machine tool is too large, after the 8 lifting frame moves to a certain position, it can also Twist the 2 setscrews to make them contact the bottom of the keyway, cooperate with the trapezoidal thread on the 14 threaded shaft, and play a positioning role.

The 18 rubber blocks are connected to the pipe support fixture by the 19 rubber block fixing plates, and screwed by ordinary screws, the 18 rubber blocks can be contacted with the auxiliary bed for positioning.

As shown in Figure 3, in this embodiment, the 21 chucks are driven by the 22 motors to rotate, and the 20 round tube workpieces are clamped by the 21 chucks to rotate, and the 20 round tube workpieces are supported by the pipe support fixture, and then cut by an external laser to achieve The laser cutting machine works normally; this embodiment uses two pipe support jigs, but the number of pipe support jigs is not limited.

The above descriptions are only examples of the present invention, and are not intended to limit the scope of the patents of the present invention. Any equivalent structure or equivalent transformation made by the abstract, specification and accompanying drawings of the present invention, or directly or indirectly used in other relevant All technical fields are equally included in the protection scope of the patent of the present invention.

Claims (2)

1. a tubing support fixture, it is characterised in that: this jig main body is provided with linear bearing slide block, moves horizontally on the round steel guide rail of lathe in order to coordinate；Use thrust ball bearing, ball nut, locking nut, thread spindle, sleeve, holding screw and elevating lever etc., form lowering or hoisting gear, make this fixture can move with vertical direction；Use the gripper shoe equipped with ball, support tubing；This fixture uses block rubber to carry out the location of horizontal level, uses holding screw to carry out the location on vertical direction.

A kind of tubing support fixture the most according to claim 1, it is characterised in that: use the gripper shoe of big cambered surface, gripper shoe has groove, be used for placing ball；Gripper shoe is taked with elevating lever but is not limited to bolt and is connected.