CN213794761U - Auxiliary cutting device for intersecting line - Google Patents

Abstract

The utility model provides an auxiliary cutting device for intersecting lines, which comprises a workpiece clamping mechanism, a cutting executing mechanism, a rotary driving device and a power supply assembly. The cutting executing mechanism and the rotary driving device are respectively connected with a power supply assembly. The workpiece clamping mechanism comprises a roller clamp, and the rotary driving device is connected with the roller clamp and used for driving the roller clamp to rotate so as to drive the pipe fitting to rotate. The cutting executing mechanism is arranged on one side of the workpiece clamping mechanism and comprises a cutting driving device and a cutting tool bit. The cutting tool bit is connected with the cutting driving device and is driven by the cutting driving device to perform left-right feeding motion along the axial direction of the pipe fitting so as to cut the pipe fitting. The utility model discloses a gyro wheel anchor clamps drive the pipe fitting rotatory and through the cutting drive arrangement drive the cutting tool bit about feed motion close the motion carry out the automatic cutout of intersecting line, the cutting mode is simple and easy more, efficiency is higher, the cutting process is more stable, accurate moreover.

Description

Auxiliary cutting device for intersecting line

Technical Field

The utility model relates to a pipe fitting cutting technical field particularly, relates to an intersection line auxiliary cutting device.

Background

With the development of the modern machining industry, pipe fittings are required in the aspects of automobiles, infrastructure, pipeline transportation and the like, the application of pipe fitting materials is ubiquitous, and higher requirements are provided for the connection and processing of the pipe fittings; for example, in some high precision gas and liquid transport pipeline-to-pipeline connections, strict standards exist because the key to the pipeline transport system is the location of the pipe connections. In order to achieve the connection of precise pipe fittings, the intersecting line cuts of the two connected pipe fittings can be completely matched, so that strict requirements on pipe fitting cutting equipment are also met. Along with the continuous improvement of the quality and precision requirements of workpiece cutting, the requirements on equipment with high production efficiency, low production cost and high intelligent automatic cutting function are also improved.

In industrial production, metal hot cutting is generally gas cutting, plasma cutting, laser cutting and the like. Compared with gas cutting, plasma cutting has wider cutting range and higher efficiency. While the fine plasma cutting technology approaches the quality of laser cutting in terms of the cut surface quality of the material, the cost is far lower than that of laser cutting. This has prompted the development of plasma cutting technology from manual or semi-automatic to numerical control, and has become one of the main directions for the development of numerical control cutting technology.

At present, the intersecting line cutting mode of the pipe fitting mainly adopts plasma cutting. Plasma is electrified high-temperature gas, and plasma cutting is a processing technology for removing pipe fitting materials by utilizing arc plasma in the high-temperature gas. At present, the plasma cutting mode of the intersecting line of the metal pipe fittings mainly comprises manual cutting, profiling cutting and numerical control machining cutting. When the pipe fitting is manually cut, the sample plate manufacturing, the line drawing and the manual lofting are firstly carried out, and then the manual cutting and the manual polishing are carried out. The cutting mode has the disadvantages of complicated process and low production efficiency, and meanwhile, certain danger exists for operators in the processing process, so that the cutting mode is less applied to actual industrial production. The explorator cutting is to fix the processed pipe fitting and the processed model pipe fitting on the same axis, and a pulley mandril device is additionally arranged at one end of the model and is fixed with the central rotating shaft. When the main shaft rotates, the pulley moves on the intersecting line of the model, and the ejector rod is pushed to feed back and forth along with the change of the track of the intersecting line, so that the cutting head can cut a cut consistent with the model on the pipe fitting. The processing mode can ensure that the processed trajectory is accurate, but model pipes with corresponding pipe diameters need to be prepared, the cutting range is relatively fixed, and the processing mode is not suitable for processing pipes with requirements on pipe diameter changes. The pipe fitting is directly machined by the numerical control machining and cutting through the numerical control machine tool, machining is fast, precision is high, and machining cost is relatively high.

SUMMERY OF THE UTILITY MODEL

The utility model provides an intersection line auxiliary cutting device aims at improving the manual work and carries out pipe fitting cutting inefficiency and numerical control processing cutting process with high costs scheduling problem.

The utility model discloses a realize like this:

the auxiliary intersecting line cutting device is characterized by comprising a workpiece clamping mechanism for clamping a pipe fitting, a cutting executing mechanism, a rotary driving device and a power supply assembly, wherein the cutting executing mechanism and the rotary driving device are respectively connected with the power supply assembly;

the workpiece clamping mechanism comprises a roller clamp, and the rotary driving device is connected with the roller clamp and used for driving the roller clamp to rotate so as to drive the pipe fitting to rotate;

the cutting executing mechanism is arranged on one side of the workpiece clamping mechanism and comprises a cutting driving device and a cutting tool bit, the cutting tool bit is connected with the cutting driving device and driven by the cutting driving device to perform left-right feeding motion along the axial direction of the pipe fitting so as to cut the pipe fitting.

Further, in the preferred embodiment of the present invention, the auxiliary intersecting line cutting device further includes a frame, the workpiece clamping mechanism is disposed on the base of the frame, and the cutting driving device is disposed on the beam of the frame.

Further, in the preferred embodiment of the present invention, the workpiece clamping mechanism further includes a rack driving mechanism and a plurality of roller adjusting devices at both ends of the roller clamp, each of the roller adjusting devices includes a gear and a parallel portion disposed on the inner rack and the outer rack of both sides of the gear, the rack driving mechanism is respectively connected with the inner rack, for driving the inner rack to move, and further driving the gear to rotate and drive the outer rack to move along the direction opposite to the moving direction of the inner rack.

Further, in the preferred embodiment of the present invention, the rack driving mechanism includes a screw rod, a first screw rod slider and a rocker, the rocker is disposed at one end of the screw rod, the first screw rod slider is disposed on the screw rod, and the first screw rod slider can reciprocate along the axial direction of the screw rod when the screw rod rotates, the two ends of the first screw rod slider respectively connect with the internal gear rack, the rotation driving device includes two first step motors, the first step motors are disposed at the two ends of the first screw rod slider.

Further, in the preferred embodiment of the present invention, the roller clamp includes two driving wheels and two respectively with the driving wheel is symmetrically disposed and is connected to the first stepping motor, two respectively with the driving wheel with the same side the external rack is connected to the driving wheel with the same side.

Further, in the preferred embodiment of the present invention, the cutting driving device comprises a feeding screw, a second stepping motor and a sleeve, the feeding screw is provided with a second screw slider, the two ends of the feeding screw are respectively connected with the cross beam in a rotatable manner, and the one end of the feeding screw is connected with the second stepping motor, and the cutting tool bit is connected with the second screw slider.

Further, in the preferred embodiment of the present invention, the two ends of the feeding screw rod are respectively connected to the frame through a limit switch.

Further, in the preferred embodiment of the present invention, the cutting tool bit is a plasma tool bit, and the plasma tool bit is detachably connected to the second screw slider through a cutting tool bit clamping structure.

Further, in the preferred embodiment of the present invention, the intersection line auxiliary cutting device further comprises a controller and a control panel, wherein the controller is connected to the first stepping motor, the second stepping motor, the control panel and the power supply module respectively.

Further, in the preferred embodiment of the present invention, the controller control panel is at least provided with a reset button for resetting the cutter head to the intermediate position and a pipe size input module for selecting a pipe size.

The utility model has the advantages that:

the utility model discloses an auxiliary cutting device of intersecting line includes work piece clamping mechanism, cutting actuating mechanism, rotary driving device and power supply module. The workpiece clamping mechanism comprises a roller clamp, and the rotary driving device is connected with the roller clamp and used for driving the roller clamp to rotate so as to drive the pipe fitting to rotate. The cutting executing mechanism comprises a cutting driving device and a cutting tool bit, the cutting tool bit is connected with the cutting driving device and is driven by the cutting driving device to do left-right feeding motion along the axial direction of the pipe fitting so as to cut the pipe fitting. The utility model discloses a gyro wheel anchor clamps drive the pipe fitting rotatory and through the cutting drive arrangement drive the cutting tool bit about feed motion close the motion carry out the automatic cutout of intersecting line. Compared with the traditional manual scribing and cutting method, the method has the advantages that the cutting method is simpler and more efficient, and the cutting process is more stable and accurate. Compared with a numerical control machining and cutting mode, the cost is lower.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of an intersecting line auxiliary cutting device according to an embodiment of the present invention;

fig. 2 is a front view of an intersecting line auxiliary cutting device according to an embodiment of the present invention;

FIG. 3 is a left side view of the intersection-line assisted cutting device shown in FIG. 2;

FIG. 4 is a top view of the intersection-line assisted cutting device shown in FIG. 2;

fig. 5 is a partially enlarged view of a roller adjustment device according to an embodiment of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-4, the utility model provides an auxiliary cutting device for intersecting line, including work piece clamping machine 1, cutting actuating mechanism 2, rotary driving device and the power supply module that is used for centre gripping pipe fitting 3. The cutting executing mechanism 2 and the rotary driving device are respectively connected with a power supply assembly.

Referring to fig. 1 and fig. 2, in this embodiment, the workpiece clamping mechanism 1 includes a roller clamp 11, and the rotation driving device is connected to the roller clamp 11 and is configured to drive the roller clamp 11 to rotate, so as to drive the pipe 3 to rotate.

Referring to fig. 1, in the present embodiment, the cutting actuator 2 is disposed on one side of the workpiece holder 1. The cutting actuator 2 comprises a cutting drive and a cutting head 21. The cutting tool bit 21 is connected with the cutting driving device and is driven by the cutting driving device to perform left-right feeding motion along the axial direction of the pipe fitting 3 so as to cut the pipe fitting 3.

The utility model discloses a gyro wheel anchor clamps 11 can drive pipe fitting 3 and rotate, and cutting drive arrangement can drive cutter head 21 and control feed motion. The corresponding intersecting line can be automatically cut through the combined motion of the two. Compared with the traditional manual scribing and cutting method, the method has the advantages that the cutting method is simpler and more efficient, the cutting speed can reach more than 10m/min, and the cutting process is more stable and accurate. Compared with a numerical control machining and cutting mode, the cost is lower.

Referring to fig. 1, in the present embodiment, the intersecting line auxiliary cutting device further includes a frame 4. The workpiece clamping mechanism 1 is arranged on a base 41 of the frame 4, and the cutting driving device is arranged on a cross beam 42 of the frame 4.

Referring to fig. 1, 3 and 5, in this embodiment, the workpiece clamping mechanism 1 further includes a rack driving mechanism and two roller adjusting devices respectively disposed at two ends of the roller clamp 11. Each roller adjusting device comprises a gear 12, an inner rack 13 and an outer rack 14 which are arranged on two sides of the gear in parallel. The rack driving mechanism is respectively connected with the two inner racks 13 and is used for driving the inner racks 13 to move, so as to drive the gear 12 to rotate and drive the outer rack 14 to move along a direction opposite to the moving direction of the inner racks 13.

Referring to fig. 1, specifically, the rack driving mechanism includes a lead screw 15, a first lead screw slider 16, and a rocker 17. The rocker 17 is arranged at one end of the screw rod 15. The first screw rod slide block 16 is sleeved on the screw rod 15, and the first screw rod slide block 16 can reciprocate along the axial direction of the screw rod 15 when the screw rod 15 rotates. Two ends of the first lead screw slide block 16 are respectively connected with the inner rack 13. The rotary drive means comprise two first stepper motors 5. The first stepping motor 5 is respectively arranged at two ends of the first screw rod sliding block 16. When the pipe fittings 3 with different pipe diameters are fixed on the roller clamp 11, the rocker 17 drives the screw rod 15 to rotate, so that the first screw rod sliding block 16 makes linear motion along the screw rod 15 and drives the inner rack 13 to slide. Since the inner rack 13 is connected with the outer rack 14 through the gear 12, when the inner rack 13 slides, the outer rack 14 can slide in the direction opposite to the moving direction of the inner rack 13 under the driving of the gear 12, so as to realize the quick adjustment of the roller clamp 11.

Referring to fig. 1 and 3, in the present embodiment, the roller clamp 11 includes two driving wheels 111 and two driven wheels 112 respectively disposed symmetrically to the driving wheels 111. The two driving wheels 111 are respectively connected with the first stepping motors 5 on the same side, and the two driven wheels 112 are respectively connected with the outer racks 14 on the same side.

When the intersecting line auxiliary cutting device works, the first stepping motor 5 can drive the driving wheel 111 to rotate, so as to drive the pipe fitting 3 to rotate, and the driven wheel 112 is used as an auxiliary wheel to rotate along with the pipe fitting. Can guarantee the steady rotation of pipe fitting 3 on gyro wheel anchor clamps through above-mentioned design, and need not to carry out the fixed clamp tightly to pipe fitting 3 like traditional chuck anchor clamps, not only can realize quick material loading unloading, saved the time of clamping location moreover greatly to improve machining efficiency. In the adjusting process, the driving wheel 111 and the driven wheel 112 can simultaneously approach or expand towards the central axis of the roller clamp 11, so that the central axis of the roller clamp 11 is ensured to be unchanged in the adjusting process, and the purpose of quickly and accurately adjusting the radius of the pipe fitting 3 is achieved. In the preferred embodiment of the present invention, the roller clamp 11 is made of a high damping polyacrylate material to ensure that the roller clamp 11 can stably drive the pipe 3 to rotate.

Referring to fig. 1 and 4, in the present embodiment, the cutting driving device includes a feed screw 22, a second stepping motor 23, and a second screw slider 24 fitted over the feed screw 22. Two ends of the feed screw 22 are rotatably connected to the cross beam 42, respectively, and one end of the feed screw 22 is further connected to the second stepping motor 23. The cutting head 21 is connected to a second screw slider 24. The second stepping motor 23 can drive the feed screw 22 to rotate, and further drive the second screw slider 24 and the cutting tool bit 21 arranged on the second screw slider 24 to perform left-right feed motion, so as to cut the pipe fitting 3. Because the central axis of the roller clamp 11 and the axial direction of the cutting head 21 are located on the same plumb face, the pipe 3 can be centered automatically when placed, the process is simple, and the roller clamp 11 does not need to be aligned again after being adjusted.

In order to facilitate an understanding of the present invention, some preferred embodiments of the present invention are described further below.

Referring to fig. 1, in a preferred embodiment, the two ends of the feed screw 22 are connected to the frame 4 through a limit switch 6. Through setting up limit switch 6, can guarantee the accurate spacing of second lead screw slider 24.

Referring to fig. 1, in a preferred embodiment, the cutting tip 21 is a plasma tip. The cutting precision of the plasma cutter head is higher than that of flame cutting, so that accurate cutting of the intersecting line can be guaranteed. The plasma cutter head is detachably connected with the second screw rod slide block 24 through a cutting cutter head clamping structure 25. Because the cutting tool bit 21 and the second screw rod sliding block 24 are detachably connected, the cutting tool bit 21 can be conveniently replaced, and the height of the cutting tool bit 21 can be adjusted according to the pipe diameter of the pipe 3 when different pipe 3 are cut, so that accurate cutting is realized.

In another preferred embodiment, the intersection line auxiliary cutting device further comprises a controller and a control panel. The controller is connected with the first stepping motor 5, the second stepping motor 23, the control panel and the power supply assembly respectively. The controller finally ensures the stable rotation of the pipe 3 and the accurate cutting of the cutting head 21 in the cutting process by controlling the rotation speeds of the first stepping motor 5 and the second stepping motor 23 and further controlling the rotation speed of the pipe 3 and the feeding speed of the cutting head 21.

In a preferred embodiment, the controller control panel is provided with at least a reset button for resetting the cutting head to a neutral position and a tube size input module for selecting a tube size. Before cutting, the controller controls the cutting bit 21 to be reset to the neutral position by pressing a reset button. Then, after the pipe diameter of the pipe 3 to be cut is selected by the pipe size input module, the controller can respectively control the speeds of the first stepping motor 5 and the second stepping motor 23 according to the pipe diameter of the pipe 3 to be cut, and further respectively control the rotating speed of the pipe 3 and the left-right feeding speed of the cutting tool bit 21 so as to cut a required intersecting line.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The auxiliary intersecting line cutting device is characterized by comprising a workpiece clamping mechanism for clamping a pipe fitting, a cutting executing mechanism, a rotary driving device and a power supply assembly, wherein the cutting executing mechanism and the rotary driving device are respectively connected with the power supply assembly;

the workpiece clamping mechanism comprises a roller clamp, and the rotary driving device is connected with the roller clamp and used for driving the roller clamp to rotate so as to drive the pipe fitting to rotate;

the cutting executing mechanism is arranged on one side of the workpiece clamping mechanism and comprises a cutting driving device and a cutting tool bit, the cutting tool bit is connected with the cutting driving device and driven by the cutting driving device to perform left-right feeding motion along the axial direction of the pipe fitting so as to cut the pipe fitting.

2. The auxiliary intersecting line cutting device of claim 1 further comprising a frame, wherein the workpiece clamping mechanism is arranged on a base of the frame, and the cutting driving device is arranged on a cross beam of the frame.

3. The auxiliary intersecting line cutting device as claimed in claim 2, wherein the workpiece clamping mechanism further comprises a rack driving mechanism and two roller adjusting devices respectively arranged at two ends of the roller clamp, each roller adjusting device comprises a gear and an inner rack and an outer rack respectively arranged at two sides of the gear in parallel, and the rack driving mechanism is respectively connected with the two inner racks and used for driving the inner racks to move so as to drive the gear to rotate and drive the outer racks to move along the direction opposite to the moving direction of the inner racks.

4. The intersection line auxiliary cutting device of claim 3, wherein the rack driving mechanism comprises a screw rod, a first screw rod slider and a rocker, the rocker is arranged at one end of the screw rod, the first screw rod slider is sleeved on the screw rod and can reciprocate along the axial direction of the screw rod when the screw rod rotates, two ends of the first screw rod slider are respectively connected with the internal rack, the rotary driving device comprises two first stepping motors, and the first stepping motors are respectively arranged at two ends of the first screw rod slider.

5. The intersection line auxiliary cutting device as claimed in claim 4, wherein the roller clamp comprises two driving wheels and two driven wheels symmetrically arranged with the driving wheels, the two driving wheels are respectively connected with the first stepping motor on the same side, and the two driven wheels are respectively connected with the external teeth bars on the same side.

6. The auxiliary intersecting line cutting device of claim 5, wherein the cutting driving device comprises a feeding screw, a second stepping motor and a second screw slider sleeved on the feeding screw, two ends of the feeding screw are rotatably connected with the beam respectively, one end of the feeding screw is further connected with the second stepping motor, and the cutting tool bit is connected with the second screw slider.

7. The auxiliary intersecting line cutting device of claim 6 wherein the two ends of the feed screw are connected to the frame through a limit switch.

8. The intersection line auxiliary cutting device of claim 6 wherein the cutting head is a plasma head removably connected to the second lead screw slide by a cutting head clamping structure.

9. The intersection line auxiliary cutting apparatus of claim 6 further comprising a controller and a control panel, the controller being connected to the first stepping motor, the second stepping motor, the control panel and the power supply assembly, respectively.

10. The apparatus of claim 9, wherein the controller control panel comprises at least one reset button for resetting the cutting head to the neutral position and a tube size input module for selecting a tube size.

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