Locking structure of threading machine

Abstract

The utility model discloses a locking structure of a die head threading machine and belongs to the technical field of die head threading machine equipment. The manual rotating wheel rotates by rotating the shifting rod, the manual rotating wheel rotates to drive the gear to rotate, the sliding table moves in the axial direction of the supporting sliding rod, the position of the cutter frame is adjusted, and the pressing force of the locking pin can be adjusted more conveniently through threaded rotary knob matched connection between the rotary knob and the shifting rod. The rotary knob is moved towards the shifting rod, the pressing rod is pressed towards the piston hole, at the moment, hydraulic fluid in the piston hole is pressed towards the hydraulic channel, the hydraulic fluid abuts against the locking pin due to the influence of pressure, at the moment, the outer end of the locking pin abuts against the side wall of the annular groove, and the pressure of the locking pin abutting against the side wall of the annular groove is controlled by rotating the downward moving distance of the rotary knob. The locking effect is achieved, the locking pin is limited in the hydraulic channel through the spring and prevented from falling off from the hydraulic channel, the friction force between the rubber block and the side wall of the annular groove can be increased through the rubber block, and the locking effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of threading machine equipment, and in particular relates to a locking structure of a threading machine. Background Art

[0002] The threading machine is also known as electric threading, electric pipe cutting and threading machine, wire twisting machine, pipe thread threading machine and steel bar threading machine. The threading machine is the electric version of the manual pipe thread twisting plate. It makes the pipe threading processing during pipeline installation easy and fast, and reduces the labor intensity of pipeline installation workers. When the threading machine is working, first put the pipe to be threaded into the pipe chuck, hit it and clamp it, press the start switch, the pipe will rotate with the chuck, adjust the size of the die opening on the die head, and set the length of the thread. Then turn the feed handwheel clockwise to make the die knife on the die head close to the end of the rotating pipe with constant force, and the die knife will automatically cut the thread. At the same time, the cooling system automatically sprays oil to cool the die knife. When the thread mouth is processed to the preset length, the die knife will automatically open, the thread mouth processing is completed, and then the length of the pipe is cut by the cutter.

[0003] However, the position of the cutter is adjusted by a slide set on the working area of ​​the threading machine, and the existing locking method of the slide movement is usually locked and fixed by bolts, and the bolts need to be operated by a wrench, which makes the threading machine very inconvenient.

[0004] To this end, the applicant has conducted useful explorations and attempts and found solutions to the above problems. The technical solutions to be introduced below were produced in this context. Summary of the invention

[0005] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a locking structure for a threading machine.

[0006] The above technical problems of the utility model are mainly solved by the following technical solutions: a locking structure of a threading machine, comprising a threading machine body, support slide bars are arranged on both sides of the front and rear sides of the working area of ​​the threading machine body, a slide table is slidably arranged between the two support slide bars, a cutting knife frame is hingedly arranged on one side of the slide table, a manual slide table driving mechanism is arranged between the slide table and one of the support slide bars, a slide bar rack is provided on the lower side of the support slide bar in contact with the manual slide table driving mechanism, the manual slide table driving mechanism comprises a manual rotating wheel and a gear connected to the axis of the manual rotating wheel, the gear is meshed with the slide bar rack, and a plurality of levers are evenly inserted on the outer side of the manual rotating wheel;

[0007] Preferably, a rotating knob is provided at the end of the lever away from the manual rotating wheel, a piston hole is provided inside the lever, the rotating knob is movably sleeved on the upper end of the lever, a pressure rod is connected to the top of the inner side of the rotating knob, the lower end of the pressure rod is provided in the piston hole, a hydraulic channel is provided on the inner side of the manual rotating wheel, the manual rotating wheel is rotationally connected to one side of the slide, an annular groove is provided at the connection between the slide and the manual rotating wheel, a locking hole is provided on the manual rotating wheel located at the annular groove, a locking pin is provided in the locking hole, and the piston hole and the hydraulic channel are filled with hydraulic fluid.

[0008] Preferably, the rotating knob is cooperatively connected with the threaded knob of the shifting rod.

[0009] Preferably, a spring is provided between the locking pin and the hydraulic channel.

[0010] Preferably, a rubber block is provided on the end of the locking pin located in the annular groove.

[0011] The utility model has the beneficial effects:

[0012] When the position of the cutter frame needs to be adjusted, the manual rotating wheel is rotated by turning the toggle lever, and the rotation of the manual rotating wheel drives the gear to rotate, so that the slide table moves axially along the supporting slide bar to adjust the position of the cutter frame. The threaded knob between the rotating knob and the toggle lever is connected in a coordinated manner, so that the pressure applied by the locking pin can be more conveniently adjusted. The rotating knob is moved in the direction of the toggle lever to press the pressure rod against the piston hole. At this time, the hydraulic fluid in the piston hole is hydraulically supplied to the hydraulic channel, and the hydraulic fluid pushes against the locking pin due to the pressure. At this time, the outer end of the locking pin pushes against the side wall of the ring groove. The pressure of the locking pin pressing against the side wall of the ring groove is controlled by the downward movement of the rotating knob to achieve a locking effect.

[0013] The locking pin is limited in the hydraulic channel by a spring to prevent it from falling out of the hydraulic channel. The rubber block can increase the friction between the rubber block and the side wall of the ring groove to improve the locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a structural schematic diagram of the support slide bar and the manual rotating wheel of the utility model;

[0016] Figure 3 yes Figure 1 A schematic diagram of a structure enlarged in the middle A part;

[0017] Figure 4 The utility model is a schematic diagram of the internal structure of the manual slide drive mechanism.

[0018] In the figure: 1. threading machine body; 2. working area; 3. supporting slide bar; 4. slide; 5. cutter holder; 6. manual slide drive mechanism; 601. manual rotating wheel; 602. gear; 603. lever; 604. rotating knob; 605. piston hole; 606. pressure rod; 607. hydraulic channel; 608. ring groove; 609. locking hole; 610. locking pin; 611. hydraulic fluid; 612. spring; 613. rubber block; 7. slide bar rack. DETAILED DESCRIPTION

[0019] The following are examples and the attached Figure 1-Figure 4 The structure is shown in the figure, and the technical solution of the utility model is further specifically described.

[0020] Embodiment 1: A locking structure of a threading machine, comprising a threading machine body 1, support slide bars 3 are arranged on both sides of the front and rear of the working area 2 of the threading machine body 1, a slide table 4 is slidably arranged between the two support slide bars 3, a cutting knife holder 5 is hingedly arranged on one side of the slide table 4, a manual slide table driving mechanism 6 is arranged between the slide table 4 and one of the support slide bars 3, a slide bar rack 7 is provided on the lower side of the support slide bar 3 in contact with the manual slide table driving mechanism 6, the manual slide table driving mechanism 6 comprises a manual rotating wheel 601 and a gear 602 connected to the axis of the manual rotating wheel 601, the gear 602 is meshed with the slide bar rack 7, and a plurality of levers 603 are evenly inserted on the outer side of the manual rotating wheel 601;

[0021] Among them, a rotating knob 604 is provided at one end of the lever 603 away from the manual rotating wheel 601, a piston hole 605 is provided inside the lever 603, the rotating knob 604 is movably sleeved on the upper end of the lever 603, a pressure rod 606 is connected to the top of the inner side of the rotating knob 604, the lower end of the pressure rod 606 is arranged in the piston hole 605, a hydraulic channel 607 is provided on the inner side of the manual rotating wheel 601, the manual rotating wheel 601 is rotationally connected to one side of the slide 4, an annular groove 608 is provided at the connection between the slide 4 and the manual rotating wheel 601, a locking hole 609 is provided on the manual rotating wheel 601 located at the annular groove 608, a locking pin 610 is provided in the locking hole 609, and the piston hole 605 and the hydraulic channel 607 are filled with hydraulic fluid 611.

[0022] The specific implementation method is:

[0023] By rotating the lever 603, the manual rotating wheel 601 is rotated, and the rotation of the manual rotating wheel 601 drives the gear 602 to rotate, so that the slide 4 moves axially along the supporting slide rod 3, and the rotating knob 604 is moved toward the lever 603, so that the pressure rod 606 is pressed against the piston hole 605. At this time, the hydraulic fluid 611 in the piston hole 605 is pressed against the hydraulic channel 607. The hydraulic fluid 611 is pressed against the locking pin 610 due to the influence of pressure. At this time, the outer end of the locking pin 610 is pressed against the side wall of the annular groove 608. By rotating the knob 604 downward, the pressure of the locking pin 610 pressing the side wall of the annular groove 608 is controlled to achieve the purpose of locking.

[0024] Embodiment 2:

[0025] Based on Example 1, this embodiment further defines a threaded knob cooperative connection between the rotating knob 604 and the shifting rod 603 .

[0026] By rotating the knob 604 and the threaded knob of the lever 603 to cooperate with each other, the pressure of the locking pin 610 can be adjusted more conveniently.

[0027] The other parts of this embodiment are the same as those of the above-mentioned embodiment 1 and will not be described in detail.

[0028] Embodiment 3:

[0029] This embodiment further defines, on the basis of Embodiment 1, that a spring 612 is provided between the locking pin 610 and the hydraulic channel 607 .

[0030] When the hydraulic fluid 611 loses its force, the locking pin 610 is limited in the hydraulic channel 607 by the spring 612 to prevent it from falling out of the hydraulic channel 607.

[0031] The other parts of this embodiment are the same as those of the above-mentioned embodiment 1 and will not be described in detail.

[0032] Embodiment 4:

[0033] Based on Example 1, this embodiment further defines that a rubber block 613 is provided on the end of the locking pin 610 located in the annular groove 608, and the rubber block 613 can increase the friction between the side wall of the annular groove 608 and improve the locking effect.

[0034] The other parts of this embodiment are the same as those of the above-mentioned embodiment 1 and will not be described in detail.

[0035] The overall application principle of the utility model:

[0036] When the threading machine is in use and the position of the cutting knife holder 5 needs to be adjusted, the manual rotating wheel 601 is rotated by turning the toggle lever 603, and the rotation of the manual rotating wheel 601 drives the gear 602 to rotate, so that the slide 4 moves axially along the supporting slide rod 3 to adjust the position of the cutting knife holder 5. The threaded knob 604 is connected with the toggle lever 603, and the pressure of the locking pin 610 can be adjusted more conveniently. The rotating knob 604 is moved toward the toggle lever 603 to make the pressure rod 606 press against the piston hole 605. At this time, the hydraulic fluid 611 in the piston hole 605 is pressed against the hydraulic channel 607. The hydraulic fluid 611 is pressed against the locking pin 610 due to the pressure. At this time, the outer end of the locking pin 610 presses against the side wall of the annular groove 608. The pressure of the locking pin 610 pressing against the side wall of the annular groove 608 is controlled by the downward movement of the rotating knob 604 to achieve the purpose of locking.

[0037] The locking pin 610 is limited in the hydraulic channel 607 by the spring 612 to prevent it from falling out of the hydraulic channel 607. The rubber block 613 can increase the friction between the side wall of the annular groove 608 and improve the locking effect.

[0038] Finally, it should be pointed out that the above embodiments are only representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model should be considered to belong to the protection scope of the present utility model.

Claims

1. A locking structure for a threading machine, comprising a threading machine body (1), support slide bars (3) being arranged on both the front and rear sides of a working area (2) of the threading machine body (1), a slide table (4) being slidably arranged between the two support slide bars (3), a cutting knife holder (5) being hingedly arranged on one side of the slide table (4), characterized in that A manual slide drive mechanism (6) is arranged between the slide (4) and one of the supporting slide bars (3); a slide bar rack (7) is provided on the lower side of the supporting slide bar (3) in contact with the manual slide drive mechanism (6); the manual slide drive mechanism (6) comprises a manual rotating wheel (601) and a gear (602) connected to the axis of the manual rotating wheel (601); the gear (602) is meshedly connected to the slide bar rack (7); and a plurality of shifting rods (603) are evenly distributed and inserted on the outer side of the manual rotating wheel (601); A rotating knob (604) is provided at one end of the lever (603) away from the manual rotating wheel (601), a piston hole (605) is provided inside the lever (603), the rotating knob (604) is sleeved on the upper end of the lever (603) and can move up and down, a pressure rod (606) is connected to the top of the inner side of the rotating knob (604), the lower end of the pressure rod (606) is provided in the piston hole (605), and the inner side of the manual rotating wheel (601) is provided with a piston hole (605). A hydraulic channel (607) is provided, the manual rotating wheel (601) is rotatably connected to one side of the slide (4), an annular groove (608) is provided at the connection between the slide (4) and the manual rotating wheel (601), a locking hole (609) is provided on the manual rotating wheel (601) located at the annular groove (608), a locking pin (610) is provided in the locking hole (609), and the piston hole (605) and the hydraulic channel (607) are filled with hydraulic fluid (611).

2. The threading machine locking structure according to claim 1, characterized in that The rotating knob (604) is cooperatively connected with the threaded knob of the shifting rod (603).

3. The threading machine locking structure according to claim 1 is characterized in that A spring (612) is provided between the locking pin (610) and the hydraulic channel (607).

4. The threading machine locking structure according to claim 1, characterized in that A rubber block (613) is provided on the end of the locking pin (610) located in the annular groove (608).

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