A tool holder for milling the edge of a round tube

Abstract

This utility model discloses a tool holder for milling the edges of round tubes, relating to the field of milling technology. It includes a drive cutter head with a positioning slot, a positioning tool holder fixedly installed within the slot, and a foot groove within the positioning tool holder. A lead screw slider is movably installed within the positioning tool holder, with sliding feet fixedly installed on both sides of the lead screw slider. A drive mechanism is provided on the positioning tool holder, including a drive lead screw connected to the lead screw slider. A drive helical gear is rotatably mounted at the center of the positioning tool holder, with driven helical gears on both sides of the drive helical gear. The end of the drive lead screw is fixed to the driven helical gear. A drive shaft is movably mounted on the drive helical gear, with a handwheel fixedly installed at the upper end of the drive shaft. A limiting mechanism is provided below the sliding feet. This tool holder for milling the edges of round tubes allows the user to easily adjust the distance between the milling cutter bodies through the cooperation of the drive mechanism and the limiting mechanism, facilitating the milling of round tubes of different diameters.

Description

Technical Field

[0001] This utility model relates to the field of edge milling technology, specifically a tool holder for milling the edges of round tubes. Background Technology

[0002] Milling, an important process in metal processing, is mainly used to precisely machine the edges of metal sheets or profiles to achieve specific shapes, dimensions, and flatness requirements. Through milling, burrs, uneven parts, or angled cuts such as right angles and rounded corners can be efficiently removed from the material edges, thereby improving the appearance quality of the workpiece and the accuracy of subsequent processing. Milling machines, as key equipment for this process, use rotating milling cutters to cut the edges of the workpiece, offering advantages such as high processing speed, high precision, and a high degree of automation.

[0003] In the process of machining round tubes, milling cutters are needed to cut the ends of the tubes flat. In the existing technology, milling cutters are generally fixed to the tool holder with bolts. The diameter of the round tubes to be machined is different, and the distance between the milling cutters needs to be adjusted during machining. The adjustment requires the user to loosen the bolts fixing the milling cutters one by one before adjusting, which is inconvenient. Therefore, a tool holder for milling the edges of round tubes is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a tool holder for milling the edges of round tubes, so as to solve the problem that the milling cutters on the tool holder are inconvenient to adjust in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tool holder for milling the edge of a round tube, comprising a drive tool disc, a positioning slot on the drive tool disc, a positioning tool holder fixedly installed in the positioning slot, a support foot groove on the positioning tool holder, a lead screw slider movably installed in the positioning tool holder, sliding feet fixedly installed on both sides of the lead screw slider, a drive mechanism on the positioning tool holder, the drive mechanism including a drive lead screw connected to the lead screw slider, a drive helical gear rotatably installed at the middle position of the positioning tool holder, driven helical gears on both sides of the drive helical gear, and the end of the drive lead screw... The drive helical gear is fixed to the driven helical gear. A drive shaft is movably mounted on the drive helical gear. A handwheel is fixedly mounted on the upper end of the drive shaft. A return spring is connected to the lower end of the drive shaft. A push-button switch is provided below the drive shaft and is vertically aligned with the drive shaft. A limit protrusion is fixedly mounted on the drive shaft. A limit mechanism is provided below the sliding foot. The limit mechanism includes a resistance limit strip movably mounted in the foot groove. A compression spring is provided below the resistance limit strip. An armature block is fixedly mounted at the bottom of the resistance limit strip. An electromagnet is fixedly mounted below the armature block and can attract the armature block.

[0006] Preferably, the lead screw slider is provided with a positioning tool holder, and a milling cutter body is fixedly installed on the positioning tool holder. The lead screw slider can drive the positioning tool holder to move.

[0007] Preferably, a retainer is provided at the middle position of the positioning tool holder, and the driving helical gear moves to the middle position of the positioning tool holder through the retainer.

[0008] Preferably, the sliding support is movably mounted on the positioning tool holder via a support groove, one end of the return spring is connected to the lower end of the drive shaft, and the other end of the return spring is connected to the bottom of the positioning tool holder. The return spring provides elastic force to the drive shaft, causing the drive shaft to tend to move upward.

[0009] Preferably, the bottom of the resistance limiting strip is provided with a positioning support, and the resistance limiting strip is movably installed in the positioning tool holder through the positioning support. The surface of the resistance limiting strip is rough, which can restrict its movement when it abuts against the sliding support.

[0010] Preferably, the push-button switch is connected to the power line of the electromagnet, and pressing the switch can control the electromagnet to start.

[0011] Preferably, one end of the compression spring is connected to the bottom of the resistance limiting strip, and the other end of the compression spring is connected to the positioning tool holder. The resistance limiting strip is aligned vertically with the sliding support foot, and the compression spring provides elastic force to the resistance limiting strip.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this application, after the limiting protrusion is inserted into the drive helical gear, the handwheel can be rotated, thereby driving the drive helical gear to rotate. After the drive helical gear rotates, it will drive the driven helical gear to rotate. After the driven helical gear rotates, it will drive the drive screw to move left and right, thereby adjusting the distance between the milling cutter bodies, which is convenient for milling round pipes of different diameters.

[0014] 2. In this application, after the handwheel is released, the reset spring will drive the drive shaft to move upward, thereby releasing the button switch. After the button switch is released, the clamping spring will drive the resistance limit bar to move upward and abut against the sliding support, thereby restricting the movement of the lead screw and slider, keeping the distance between the milling cutter bodies fixed, and ensuring the milling accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0017] Figure 3 This is a partial structural schematic diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the drive mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the limiting mechanism of this utility model.

[0020] The following are the labeling elements in the diagram: 1. Drive cutter head; 2. Positioning slot; 3. Positioning tool holder; 301. Support foot groove; 4. Lead screw slider; 401. Sliding support foot; 5. Milling cutter body; 6. Positioning tool holder; 7. Drive mechanism; 701. Drive lead screw; 702. Driven helical gear; 703. Handwheel; 704. Limiting protrusion; 705. Drive shaft; 706. Drive helical gear; 707. Return spring; 708. Push button switch; 8. Limiting mechanism; 801. Resistance limit bar; 802. Compression spring; 803. Armature block; 804. Positioning support column; 805. Electromagnet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a tool holder for milling the edge of a round tube, including a drive cutter head 1, a positioning slot 2 on the drive cutter head 1, a positioning tool holder 3 fixedly installed in the positioning slot 2, a support foot groove 301 in the positioning tool holder 3, a lead screw slider 4 movably installed in the positioning tool holder 3, sliding feet 401 fixedly installed on both sides of the lead screw slider 4, a drive mechanism 7 on the positioning tool holder 3, and a limiting mechanism 8 below the sliding feet 401. Through the cooperation of the drive mechanism 7 and the limiting mechanism 8, the user can easily adjust the distance between the milling cutter bodies 5, which is convenient for milling round tubes of different diameters.

[0023] like Figure 3 and Figure 4As shown, the drive mechanism 7 includes a drive screw 701 connected to the screw slider 4, a drive helical gear 706 rotatably mounted at the middle position of the positioning tool holder 3, driven helical gears 702 on both sides of the drive helical gear 706, and the end of the drive screw 701 is fixed on the driven helical gear 702. A drive shaft 705 is movably mounted on the drive helical gear 706, a handwheel 703 is fixedly mounted on the upper end of the drive shaft 705, a return spring 707 is connected to the lower end of the drive shaft 705, a push button switch 708 is provided below the drive shaft 705, and the push button switch 708 is vertically aligned with the drive shaft 705. A limit protrusion 704 is fixedly mounted on the drive shaft 705, a positioning tool holder 6 is provided on the screw slider 4, and a milling cutter body 5 is fixedly mounted on the positioning tool holder 6.

[0024] Specifically, after the limiting protrusion 704 is engaged in the drive helical gear 706, the handwheel 703 can be rotated, thereby driving the drive helical gear 706 to rotate. After the drive helical gear 706 rotates, it will drive the driven helical gear 702 to rotate. After the driven helical gear 702 rotates, it will drive the drive screw 701 to move left and right, thereby adjusting the distance between the milling cutter bodies 5, which is convenient for milling round pipes of different diameters.

[0025] like Figure 3 and Figure 5 As shown, the limiting mechanism 8 includes a resistance limiting bar 801 movably installed in the support foot slide groove 301, a compression spring 802 provided below the resistance limiting bar 801, an armature block 803 fixedly installed at the bottom of the resistance limiting bar 801, an electromagnet 805 fixedly installed below the armature block 803, a positioning support column 804 provided at the bottom of the resistance limiting bar 801, and the resistance limiting bar 801 is movably installed in the positioning tool holder 3 through the positioning support column 804.

[0026] Specifically, after releasing the handwheel 703, the return spring 707 will drive the drive shaft 705 to move upward, thereby releasing the button switch 708. After releasing the button switch 708, the clamping spring 802 will drive the resistance limit bar 801 to move upward and abut against the sliding support 401, thereby restricting the movement of the lead screw slider 4, keeping the distance between the milling cutter bodies 5 fixed, and ensuring the milling accuracy.

[0027] Working principle: First, press down the handwheel 703. Pressing down the handwheel 703 will drive the drive shaft 705 downwards. As the drive shaft 705 moves downwards, it will press down the button switch 708, thus activating the power supply to the electromagnet 805. Once the power supply to the electromagnet 805 is activated, it will attract the armature block 803, causing the resistance limit bar 801 to move downwards a short distance, releasing the sliding support foot 401. As the drive shaft 705 moves downwards, the limiting protrusion 704 will engage with the drive helical gear 706. After the limiting protrusion 704 engages with the drive helical gear 706, the handwheel 703 can be rotated. Rotating the handwheel 703 will then drive the drive shaft 705 to rotate, which in turn will drive the drive helical gear 706 to rotate. The rotation of the drive helical gear 706 will then drive the driven helical gear... When wheel 702 rotates, the driven helical gear 702 rotates, which drives the drive screw 701 to move left and right, thereby adjusting the distance between the milling cutter bodies 5 to facilitate milling round pipes of different diameters. After the distance between the milling cutter bodies 5 is adjusted, handwheel 703 can be released. Since one end of the return spring 707 is connected to the lower end of the drive shaft 705 and the other end of the return spring 707 is connected to the bottom of the positioning tool holder 3, releasing handwheel 703 will cause the return spring 707 to drive the drive shaft 705 to move upward. After the drive shaft 705 moves upward, the button switch 708 will be released. After the button switch 708 is released, the clamping spring 802 will drive the resistance limit bar 801 to move upward and abut against the sliding support 401, thereby restricting the movement of the screw slider 4 and keeping the distance between the milling cutter bodies 5 fixed.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tool holder for milling the edge of a round pipe, comprising a driving tool disc (1) having a positioning clamping groove (2) formed therein, and a positioning tool holder (3) fixedly installed in the positioning clamping groove (2), characterized in that: The positioning tool rest (3) is internally provided with a supporting leg sliding groove (301), the positioning tool rest (3) is movably provided with a screw rod sliding block (4), the screw rod sliding block (4) is movably provided with a sliding supporting leg (401), the positioning tool rest (3) is provided with a driving mechanism (7), the driving mechanism (7) comprises a driving screw rod (701) connected to the screw rod sliding block (4), the positioning tool rest (3) is movably provided with a driving bevel gear (706) at the middle position, the driving bevel gear (706) is provided with a driven bevel gear (702) at both sides, and the driving screw rod (701) is fixedly connected to the driven bevel gear (702) at the end, the driving bevel gear (706) is movably provided with a driving shaft (705), the driving shaft (705) is movably provided with a hand wheel (703) at the upper end, the driving shaft (705) is movably provided with a reset spring (707) at the lower end, the driving shaft (705) is movably provided with a button switch (708) below, and the button switch (708) is vertically aligned with the driving shaft (705), the driving shaft (705) is movably provided with a limiting protrusion (704), the sliding supporting leg (401) is movably provided with a limiting mechanism (8) below, the limiting mechanism (8) comprises a resistance limiting strip (801) movably provided in the supporting leg sliding groove (301), the resistance limiting strip (801) is movably provided with a compression spring (802) below, the resistance limiting strip (801) is movably provided with an armature block (803) at the bottom, and the armature block (803) is movably provided with an electromagnet (805) below.

2. A tool holder for milling the edge of a circular pipe according to claim 1, characterized in that: The screw rod sliding block (4) is movably provided with a positioning tool holder (6), and the positioning tool holder (6) is movably provided with a milling cutter body (5).

3. A tool holder for milling the edge of a circular pipe according to claim 2, characterized in that: The positioning tool rest (3) is movably provided with a retainer at the middle position, and the driving bevel gear (706) is movably provided in the retainer at the middle position of the positioning tool rest (3).

4. A tool holder for milling the edge of a circular pipe according to claim 3, characterized in that: The sliding supporting leg (401) is movably provided in the positioning tool rest (3) through the supporting leg sliding groove (301), one end of the reset spring (707) is movably connected to the lower end of the driving shaft (705), and the other end of the reset spring (707) is movably connected to the bottom of the positioning tool rest (3).

5. A tool holder for milling the edge of a circular pipe according to claim 4, characterized in that: The resistance limiting strip (801) is movably provided in the positioning tool rest (3) through the positioning support column (804).

6. A tool holder for milling the edge of a circular pipe according to claim 1, characterized in that: The button switch (708) is connected to the power line of the electromagnet (805).

7. A tool holder for milling the edge of a circular pipe according to claim 1, characterized in that: One end of the compression spring (802) is movably connected to the bottom of the resistance limiting strip (801), the other end of the compression spring (802) is movably connected to the positioning tool rest (3), and the resistance limiting strip (801) is vertically aligned with the sliding supporting leg (401).

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