Tool rest structure of numerical control feeding machine

Abstract

A vertical plate is fixedly arranged on a machine frame, a wire rotating device is arranged on the lower portion of the vertical plate, a plurality of vertical tool rests are arranged on the upper portion of the vertical plate, and each vertical tool rest comprises a vertical tool rest installation base, a vertical lead screw motor, a vertical sliding tool apron and a vertical tool. The side face moving tool rests are arranged on the two sides, in the wire feeding direction, of the wire rotating device correspondingly, each side face moving tool rest comprises a side face tool rest installation base, a longitudinal lead screw motor, a longitudinal sliding base, a transverse lead screw motor, a transverse sliding base, a side face tool apron and a transverse sliding rail, and the side face tool aprons are fixedly installed on the transverse sliding bases. The vertical tool rest is arranged on the upper portion of the machine, machining such as annular groove carving and cutting-off can be completed, the side face moving tool rest arranged on the side face can move in the radial direction and the axial direction of a wire rod at the same time, more complex machining can be completed, and the vertical tool rest and the side face moving tool rest control feeding through numerical control and high-precision lead screw motors, so that production machine types are convenient to replace, and production efficiency is improved. The automation degree is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool equipment, and in particular relates to a tool holder structure of a numerical control tool feeding machine. Background Art

[0002] Some parts used in medical or other precision instruments are obtained by straightening millimeter-level round metal wires through machine tools. During the processing, the wires need to be drilled and tapped axially, and the sides need to be annularly grooved and cut. Existing metal wire processing machines with high processing accuracy generally use cam machines to control the feed, but cam machines are realized by pre-setting the cam profile, which has a certain fixedness, is not convenient for production machine model replacement, and the action control is not flexible enough, which needs to be improved. Utility Model Content

[0003] The utility model aims to solve the above problems and provide a tool holder structure for a CNC tool feeding machine, which can meet the machining accuracy and facilitate the replacement of production machines, and the machining action can be flexibly controlled.

[0004] The utility model is realized by the following technical solutions:

[0005] A tool holder structure of a CNC tool feeding machine comprises a frame, characterized in that: a vertical plate is fixedly arranged on the frame, a wire rotating device is arranged at the lower part of the vertical plate, the wire rotating device passes through the vertical plate and the wire feeding direction is perpendicular to the plane direction of the vertical plate; a plurality of vertical tool holders are arranged at the upper part of the vertical plate, each vertical tool holder comprises a vertical tool holder mounting seat, a vertical screw motor, a vertical sliding tool holder and a vertical knife, the vertical tool holder mounting seat is fixed on the vertical plate, the vertical screw motor is installed at the upper part of the vertical tool holder mounting seat, a vertical slide rail is arranged at the lower part of the vertical tool holder mounting seat, the vertical sliding tool holder is driven by the vertical screw motor to move up and down along the vertical slide rail, and the vertical A vertical knife is installed at the lower part of the sliding knife seat; the wire rotating device is respectively provided with side movable knife seats on both sides along the wire feeding direction, the side movable knife seats include a side knife seat mounting seat, a longitudinal screw motor, a longitudinal slide, a transverse screw motor, a transverse slide, a side knife seat and a transverse slide rail, the side knife seat mounting seat is fixed on the frame, the longitudinal screw motor is installed on the side knife seat mounting seat, the longitudinal slide is driven by the longitudinal screw motor to move laterally, the transverse screw motor is fixedly installed on the longitudinal slide, the transverse slide slides along the upper surface of the longitudinal slide driven by the transverse screw motor, and the side knife seat is fixedly installed on the transverse slide.

[0006] Furthermore, the vertical slide rails provided at the lower portion of the vertical tool holder mounting seat are double linear rails, which are beneficial to ensuring the stability of the vertical sliding tool holder during sliding.

[0007] Furthermore, the sliding direction of the vertical knife points to the axis of the wire rotating device.

[0008] Furthermore, the lower surface of the longitudinal slide seat slides along the plane of the upper surface of the frame.

[0009] Furthermore, the upper surface of the longitudinal slide is provided with a transverse slide rail protruding upward, and the transverse slide slides along the transverse slide rail.

[0010] Furthermore, the central axis of the screw of the transverse screw motor and the central axis of rotation of the wire rotating device are parallel to each other.

[0011] Furthermore, the side tool holder is provided with a tool head mounting groove, and the tool head is fixed in the tool head mounting groove by bolts, so that the tool head is easy to replace.

[0012] The beneficial effects of the utility model are as follows: the tool holder structure of the CNC tool feeding machine designed by the utility model has a vertical tool holder on the top, which can complete processing such as engraving annular grooves and cutting, and the side movable tool holder arranged on the side can move simultaneously in the radial and axial directions of the wire, which can complete more complex processing. The vertical tool holder and the side movable tool holder both adopt CNC and high-precision screw motors to control the feed, so it is convenient to replace the production machine model, with a high degree of automation and high processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0016] In the figure, 1, frame, 2, vertical plate, 3, wire rotating device, 4, vertical tool holder, 5, side movable tool holder, 41, vertical tool holder mounting seat, 42, vertical screw motor, 43, vertical sliding tool holder, 44, vertical knife, 51, side tool holder mounting seat, 52, longitudinal screw motor, 53, longitudinal slide seat, 54, transverse screw motor, 55, transverse slide seat, 56, side tool holder, 411, vertical slide rail, 531, transverse slide rail. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0018] like Figure 1-Figure 3As shown, a tool holder structure of a CNC tool feeding machine comprises a frame 1, on which a vertical plate 2 is fixedly arranged, a wire rotating device 3 is arranged at the lower part of the vertical plate 2, the wire rotating device 3 passes through the vertical plate 2 and the wire feeding direction is perpendicular to the plane direction of the vertical plate 2; three vertical tool holders 4 are arranged on the upper part of the vertical plate 2, each vertical tool holder 4 comprises a vertical tool holder mounting seat 41, a vertical screw motor 42, a vertical sliding tool seat 43 and a vertical knife 44, the vertical tool holder mounting seat 41 is fixed on the vertical plate 2, the vertical screw motor 42 is installed on the upper part of the vertical tool holder mounting seat 41, a vertical slide rail 411 is arranged at the lower part of the vertical tool holder mounting seat 41, the vertical sliding tool seat 43 is driven by the vertical screw motor 42 to move up and down along the vertical slide rail 411, and the vertical slide rail 411 arranged at the lower part of the vertical tool holder mounting seat 41 is a double linear rail, which is beneficial to ensure the stability of the vertical sliding tool seat 43 when sliding. A vertical knife 44 is installed at the lower part of the vertical sliding knife seat 43, and the sliding direction of the vertical knife 44 points to the axis of the wire rotating device 3. The wire rotating device 3 is provided with side movable knife holders 5 on both sides along the wire feeding direction, and the side movable knife holders 5 include a side knife holder mounting seat 51, a longitudinal screw motor 52, a longitudinal slide seat 53, a transverse screw motor 54, a transverse slide seat 55, a side knife holder 56 and a transverse slide rail 531. The side knife holder mounting seat 51 is fixed on the frame 1, and the longitudinal screw motor 52 is installed on the side knife holder mounting seat 51. The longitudinal slide seat 53 is driven by the longitudinal screw motor 52 to move transversely. The lower surface of the longitudinal slide 53 slides along the plane of the upper surface of the frame 1, the transverse screw motor 54 is fixedly installed on the longitudinal slide 53, the upper surface of the longitudinal slide 53 is provided with an upwardly protruding transverse slide rail 531, the transverse slide 55 slides on the upper surface of the longitudinal slide 53 along the transverse slide rail 531, and the side tool holder 56 is fixedly installed on the transverse slide 55, the side tool holder 56 is provided with a tool head mounting groove, and the tool head is fixed in the tool head mounting groove by bolts to facilitate the replacement of the tool head.

[0019] The central axis of the screw of the transverse screw motor 54 and the central axis of rotation of the wire rotating device 3 are parallel to each other.

[0020] The tool holder structure of the CNC tool feeding machine designed by the utility model, when processing a wire with a circular cross section and a small radius, sets the operating parameters of the corresponding motor of the corresponding tool head in advance according to the shape requirements of the parts to be processed by the wire, and the CNC tool feeding machine automatically completes the operations of grooving, cutting or grain processing on the outer edge of the wire. The wire is installed in the wire rotating device 3, and as the wire rotating device 3 rotates, the vertical screw motor 42 on the vertical tool holder mounting seat 41 of the groove vertical tool holder 4 drives the vertical sliding tool seat 43 to push the vertical knife 44 to feed the wire, carve an annular groove, and then withdraw the knife. For example, if you want to carve a spiral groove, use the side moving tool holder 5. The longitudinal screw motor 52 on the side tool holder mounting seat 51 drives the cutter head on the side tool holder 56 to advance by pushing the longitudinal slide 53. At the same time, the transverse screw motor 54 drives the transverse slide 55 to drive the cutter head on the side tool holder 56 to move transversely, so as to complete the processing of the spiral pattern. After the processing is completed, the tool is retracted. Finally, the vertical tool holder 4 that completes the cutting action performs the corresponding action to complete the wire cutting. The wire rotating device 3 feeds in steps, and this is repeated to complete the batch processing of parts of the same model. When switching to another batch of parts with different specifications and sizes, the operating parameters of the corresponding motor can be imported into the CNC tool feeder, so it is convenient to replace the production machine model, with a high degree of automation and high processing efficiency.

[0021] The above embodiments are only preferred implementation modes of the present invention and are only used to explain the present invention rather than to limit the present invention. Any changes, substitutions, combinations, simplifications, modifications, etc. made by those skilled in the art without departing from the spirit and principles of the present invention shall be considered as equivalent replacement modes and shall be included in the protection scope of the present invention.

Claims

1. A tool holder structure of a CNC tool feeding machine, comprising a frame, characterized in that: A vertical plate is fixedly arranged on the frame, and a wire rotating device is arranged at the lower part of the vertical plate, and the wire rotating device passes through the vertical plate, and the wire feeding direction is perpendicular to the plane direction of the vertical plate; a plurality of vertical knife racks are arranged at the upper part of the vertical plate, and each vertical knife rack comprises a vertical knife rack mounting seat, a vertical screw motor, a vertical sliding knife seat and a vertical knife, the vertical knife rack mounting seat is fixed on the vertical plate, the vertical screw motor is installed at the upper part of the vertical knife rack mounting seat, a vertical slide rail is arranged at the lower part of the vertical knife rack mounting seat, the vertical sliding knife seat is driven by the vertical screw motor to move up and down along the vertical slide rail, and a vertical knife is installed at the lower part of the vertical sliding knife seat; The wire rotating device is respectively provided with side movable tool holders on both sides along the wire feeding direction, and the side movable tool holder comprises a side tool holder mounting seat, a longitudinal screw motor, a longitudinal slide, a transverse screw motor, a transverse slide, a side tool holder and a transverse slide rail, the side tool holder mounting seat is fixed on the frame, the longitudinal screw motor is installed on the side tool holder mounting seat, the longitudinal slide is driven by the longitudinal screw motor to move transversely, the transverse screw motor is fixedly installed on the longitudinal slide, the transverse slide slides along the upper surface of the longitudinal slide driven by the transverse screw motor, and the side tool holder is fixedly installed on the transverse slide.

2. The tool rest structure of the CNC tool feeding machine according to claim 1, characterized in that: The vertical slide rails arranged at the lower part of the vertical tool holder mounting seat are double linear rails.

3. The tool rest structure of the CNC tool feeding machine according to claim 1, characterized in that: The sliding direction of the vertical knife points to the axis of the wire rotating device.

4. The tool rest structure of the CNC tool feeding machine according to claim 1, characterized in that: The lower surface of the longitudinal slide seat slides along the plane of the upper surface of the frame.

5. The tool rest structure of the CNC tool feeding machine according to claim 1, characterized in that: The upper surface of the longitudinal slide is provided with a transverse slide rail protruding upward, and the transverse slide slides along the transverse slide rail.

6. The tool rest structure of the CNC tool feeding machine according to claim 1, characterized in that: The central axis of the screw of the transverse screw motor is parallel to the central axis of rotation of the wire rotating device.

7. The tool rest structure of the CNC tool feeding machine according to claim 1, characterized in that: The side tool holder is provided with a tool head mounting groove, and the tool head is fixed in the tool head mounting groove by bolts.

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