Height positioning and monitoring assembly for gantry single-head milling machine

Abstract

The utility model discloses a gantry single-head milling machine height positioning monitoring assembly and belongs to the technical field of milling machine equipment. A grating ruler and a travel switch are arranged, an extending air cylinder extends out in advance, so that the travel switch and a positioning block are in contact and closed, a Z axis of a milling machine drives a monitoring assembly to move, and the sequentially-connected grating ruler making contact with a contact plate and a workpiece moves, and meanwhile, the travel switch is switched off; the height between the abutting plate and the bottom plate for installing the workpiece when the abutting plate makes contact with the workpiece can be calculated according to the change of the two values, the height of the workpiece can be accurately calculated, manual measurement is omitted, the measurement precision is further improved, and meanwhile the machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of milling machine equipment, in particular to a height positioning monitoring component of a gantry single-head milling machine. Background Art

[0002] Gantry milling machine, also known as gantry milling machine, is a milling machine with a portal frame and a horizontal long bed. Multiple milling cutters can be used to process surfaces simultaneously on a gantry milling machine. The processing accuracy and production efficiency are relatively high. It is suitable for processing planes and inclined surfaces of large workpieces in batch and mass production. For a gantry milling machine, the measurement of the height direction of the workpiece needs to be extremely precise, so a milling machine rapid positioning platform is required.

[0003] Based on the above, after the workpiece is fixed on the traditional milling machine positioning platform, a person needs to manually measure the distance between the tool and the workpiece through a standard core rod. The manual measurement method affects the machining accuracy of the workpiece and affects the overall machining efficiency. Summary of the invention

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a height positioning monitoring component for a gantry single-head milling machine.

[0005] The above-mentioned technical problem of the utility model is mainly solved by the following technical scheme: a gantry single-head milling machine height positioning monitoring component comprises a mounting plate, a push-out cylinder is arranged on the mounting plate, the protruding end of the push-out cylinder extends to the lower side of the mounting plate, and a contact plate is arranged on the end portion, the contact plate is fixedly connected to the protruding end of the push-out cylinder, two second guide rods are symmetrically arranged on the left and right sides of the push-out cylinder, the end of the second guide rod is fixed on the contact plate, and the other side is slidably connected to the box body, the upper and lower ends of the mounting plate are each provided with a frame plate, two frame rods are symmetrically connected between the rear ends of the two second guide rods, a grating ruler is installed between the frame rod on the upper side and the frame plate on the upper side, a travel switch is arranged on the frame rod on the lower side, and a positioning block cooperating with the travel switch is arranged on the frame plate on the lower side,

[0006] Preferably, the two rack rods are vertically symmetrically arranged relative to the ejection cylinder.

[0007] Preferably, both left and right ends of the frame plate are fixedly connected to the upper end of the second guide rod of the bright strip.

[0008] The beneficial effects of the present utility model are as follows: By providing a grating scale and a travel switch, the extending cylinder extends in advance, so that the travel switch contacts and closes with the positioning block. The monitoring component is driven by the Z-axis of the milling machine to move. The contact plate moves along with the grating scale when contacting the workpiece, and at the same time the travel switch is disconnected. The changes of the two can be used to calculate the height between the contact plate and the bottom plate for installing the workpiece when the contact plate contacts the workpiece, so that the height of the workpiece can be accurately calculated, manual measurement is avoided, the measurement accuracy is further improved, and the processing efficiency is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is a schematic structural diagram of the present utility model.

[0010] In the figure: 7, mounting plate; 8, ejecting cylinder; 9, contact plate; 10, second guide rod; 11, mounting plate; 12, support rod; 13, grating scale; 14, travel switch; 15, positioning block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0011] The technical solutions of the present utility model will be further specifically described below through embodiments in conjunction with the drawings.

[0012] Embodiment: A height positioning and monitoring component for a gantry single-head milling machine, as Figure 1 shown, includes a mounting plate. A ejecting cylinder is provided on the mounting plate. The extending end of the ejecting cylinder extends to the lower side of the mounting plate, and a contact plate is provided at the end. The contact plate is fixedly connected to the extending end of the ejecting cylinder. Two second guide rods are symmetrically arranged on the left and right sides of the ejecting cylinder. The ends of the second guide rods are fixed on the contact plate, and the other side is slidably connected to the box body. Mounting plates are provided at the upper and lower ends of the mounting plate. Two support rods are symmetrically connected between the rear ends of the two second guide rods. A grating scale is installed between the upper support rod and the upper mounting plate. A travel switch is provided on the lower support rod, and a positioning block cooperating with the travel switch is provided on the lower mounting plate.

[0013] The two support rods are symmetrically arranged above and below the ejecting cylinder; both left and right ends of the mounting plate are fixedly connected to the upper ends of the bright strip second guide rods.

[0014] Principle of the present utility model: The monitoring component is installed on the spindle box of the milling machine, which is usually used to process workpieces with a relatively high flatness of the processed surface. Therefore, before processing, it is necessary to measure the height of the workpiece. The blank is installed on the placement plate of the milling machine and pressed tightly by a pressing plate. The ejecting cylinder extends to drive the contact plate to extend. At this time, the position on the grating scale is the origin position. At the same time, the travel switch abuts against the positioning block and closes. The spindle box moves downward to drive the contact plate to contact the workpiece. At the moment of contact, the movement of the contact plate drives the grating scale to displace. At the same time, the travel switch disengages from the positioning block to make it disconnect the signal. The changes of both are monitored to the contact position of the monitoring component. Through the coded position of the spindle box movement and the contact position monitored by the grating scale monitoring component, the distance in the height direction of the workpiece can be accurately calculated. Moreover, the origin position can be monitored and measured for the placement plate on which the workpiece is installed in advance, and the position after the workpiece is placed is monitored. By comparing the two, the height of the workpiece can also be accurately monitored by the monitoring component.

[0015] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments and can have many variations. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model should be considered as belonging to the protection scope of the present utility model.

Claims

1. A height positioning monitoring assembly for a gantry single-head milling machine, comprising a mounting plate, characterized in that: The mounting plate is provided with an ejection cylinder, the protruding end of the ejection cylinder extends to the lower side of the mounting plate, and a contact plate is provided on the end, the contact plate is fixedly connected to the protruding end of the ejection cylinder, two second guide rods are symmetrically provided on the left and right sides of the ejection cylinder, the ends of the second guide rods are fixed on the contact plate, and the other sides are slidably connected to the box body, the upper and lower ends of the mounting plate are each provided with a frame plate, two frame rods are symmetrically connected between the rear ends of the two second guide rods, a grating ruler is installed between the frame rod on the upper side and the frame plate on the upper side, a travel switch is provided on the frame rod on the lower side, and a positioning block cooperating with the travel switch is provided on the frame plate on the lower side.

2. The height positioning monitoring assembly for a gantry single-head milling machine according to claim 1, characterized in that: The two support rods are symmetrically arranged up and down relative to the ejection cylinder.

3. The height positioning monitoring assembly of a gantry single-head milling machine according to claim 1, characterized in that: The left and right ends of the frame plate are both fixedly connected to the upper end of the second guide rod of the bright strip.

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