A cutting device

Abstract

The application discloses a cutting device, which comprises a cutter, a circumferential rotating mechanism and a feeding mechanism. The circumferential rotating mechanism drives the cutter to rotate along the circumference of a pipe to be processed. The feeding mechanism drives the cutter to feed and retreat. The cutting device cuts in a ring shape by using the cutter moving along the circumference of the pipe to be processed. The cutting device has high cutting precision and good quality, does not cause unnecessary damage to the pipe to be processed, guarantees the quality and precision of pipe reconnection, reduces maintenance cost, has simple and compact structure, and can be directly applied to a pipeline construction site and used conveniently and efficiently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe processing device, in particular to a cutting device. BACKGROUND

[0002] Pipe is used to transport gas, liquid or fluid with solid particles of the device for connecting the pipe, pipe connecting parts and valves. The existing pipe device usually need to be connected together in different pipe diameter pipe, in the pipe diameter of the pipe joint is larger, the inner and outer pipe need to be connected by ring connecting piece welding, after the welding connection, the inner and outer pipe is in the state of connection can not be adjusted, but the coaxiality between the inner and outer pipe does not reach the required high precision, or the inner and outer pipe needs to be replaced when the inner pipe or outer pipe problem, the inner and outer pipe need to be split. The inner and outer pipe is difficult to split, the prior art usually uses laser cutting to split the inner and outer pipe, but the cost of laser cutting is high, and the laser cutting equipment cannot be directly used in the construction site of the pipe device, if the traditional electric saw is used to split, the formed cut is not regular and the precision is poor, which seriously affects the quality and precision of the secondary connection of the inner and outer pipe, and also easily damages the inner and outer pipe, increases the maintenance cost. SUMMARY

[0003] The technical problem to be solved by the present application and the technical task proposed are to improve the prior art, provide a cutting device, solve the problem that the connected pipe is difficult to be cut and split efficiently in the prior art, and the pipe is easily damaged during the splitting process, and the maintenance cost is high.

[0004] To solve the above technical problems, the technical scheme of the present application is:

[0005] A cutting device, comprising a cutter, a circumferential rotation mechanism and a feeding mechanism, the circumferential rotation mechanism drives the cutter to rotate circumferentially along the pipe to be processed, and the feeding mechanism drives the cutter to feed and retreat. The cutting device of the present application uses the cutter moving circumferentially along the pipe to be processed to perform annular cutting, which has high cutting precision and good quality, does not cause unnecessary damage to the pipe to be processed, ensures the quality and precision of the reconnection of the pipe, reduces the maintenance cost, and has simple and compact structure. The cutting device of the present application can be directly applied to the pipe construction site, is convenient to use and has high efficiency.

[0006] Further, the circumferential rotating mechanism comprises a support and a rotating member, the support is fixed on the pipe to be processed, the rotating member is movably connected to the support and rotates along the circumferential direction of the pipe to be processed, and the cutter is arranged on the rotating member. The cutting device has the advantages of compact structure, small space occupation, direct installation on the pipe to be processed, convenient and stable and accurate positioning of the cutting device relative to the pipe to be processed, accurate movement path of the cutter, effective cutting quality, and avoidance of cutting deviation.

[0007] Further, the support is annular along the circumferential direction of the pipe to be processed, and a plurality of abutting members for abutting against the circumferential wall of the pipe to be processed are arranged on the support in the circumferential direction. The support is simple in structure and convenient to install, is sleeved on the periphery of the pipe to be processed, is simple in structure, can be accurately fixed on the pipe to be processed, and can effectively guarantee the stability of the support, thereby guaranteeing the stability of the cutter during movement and improving the cutting accuracy and quality.

[0008] Further, the rotating member is annular along the circumferential direction of the pipe to be processed, which can effectively improve the stability of the rotating member during rotation along the circumferential direction of the pipe to be processed, improve the cutting accuracy and quality, and the support can be provided with an annular guide portion or an arc segment guide portion along the circumferential direction of the pipe to be processed. The annular guide portion or the arc segment guide portion can be a guide groove or a guide flange formed on the support. The rotating member rotates along the annular guide portion or the arc segment guide portion to drive the cutter to realize annular cutting.

[0009] Further, the circumferential rotating mechanism further comprises a power member for driving the rotating member to move along the circumferential direction of the pipe to be processed. The power member is connected to the support or the rotating member, and the rotating member can move without manual driving, automatic cutting is realized, efficiency is improved, and labor intensity is reduced.

[0010] Further, the feeding mechanism is arranged on the rotating member, and the cutter is connected to the feeding mechanism. The amount of feeding and retracting the cutter can be conveniently and accurately controlled, the cutting quality is guaranteed, and the cutter can be effectively prevented from being damaged, and the service life is prolonged.

[0011] Further, the feeding mechanism is a screw pair, which is simple in structure and convenient to implement, can accurately and stably control the amount of feeding and retracting the cutter, has a self-locking function, can keep the position of the stable feeding amount of the cutter during cutting, thereby guaranteeing the cutting quality and preventing the cutter from being damaged.

[0012] Further, an automatic feeding assembly for driving the screw of the screw pair to rotate is arranged, manual operation is not required, automatic feeding can be realized during cutting, and labor intensity is reduced.

[0013] Further, the automatic feed assembly comprises a gear arranged on the screw rod of the screw pair and a poking member arranged on the support and used for poking the gear to rotate, a pure mechanical linkage structure, without power driving, when the rotating member moves along the circumference of the pipe to be processed to the position of the poking member, the gear is contacted with the poking member, the gear is poked by the poking member to drive the screw rod of the screw pair to rotate to realize the automatic feed of the cutter, the action is high in reliability, the structure is simple, and the automatic feed of the cutter is easy to realize.

[0014] Further, the feed mechanism is in the feed and retreat direction along the axis of the pipe to be processed, and the cutter is used for cutting the connecting area in the radial direction of the pipe to be processed.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The cutting device cuts the connecting area in the radial direction of the pipe to be processed in a ring shape by the cutter moving along the circumference of the pipe to be processed, is high in cutting precision and quality, does not cause unnecessary damage to the pipe to be processed, guarantees the quality and precision of the reconnection of the pipe, and reduces the maintenance cost.

[0017] The cutting device is simple and compact in structure, small in space occupation, can be directly applied to the pipeline construction site, is convenient to use, high in efficiency, and low in cost, and effectively reduces the labor intensity.

[0018] The cutting device is directly erected and installed on the pipe to be processed, so that the stable and accurate positioning of the cutting device relative to the pipe to be processed can be conveniently guaranteed, the accuracy of the movement path of the cutter is guaranteed, and the cutting precision and quality are effectively guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a side view structural schematic diagram of the cutting device;

[0020] Fig. 2 It is a three-dimensional structural schematic diagram of the cutting device;

[0021] Fig. 3 It is a structural schematic diagram of the automatic feed assembly. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0023] The cutting device disclosed in this invention can conveniently cut and disassemble pipe fittings with high efficiency, high precision, and good quality. The cutting process will not damage the pipe fittings, ensuring the integrity of the pipe fittings and guaranteeing the quality and precision of the reconnection of the pipe fittings.

[0024] Example 1

[0025] like Figs. 1 to 3 As shown, a cutting device mainly includes a cutting tool 1, a circumferential rotation mechanism, and a feeding mechanism 2. The circumferential rotation mechanism drives the cutting tool to rotate circumferentially along the pipe a to be processed, and the feeding mechanism 2 drives the cutting tool 1 to advance and retract.

[0026] In this embodiment, the circumferential rotation mechanism includes a support member 3 and a rotating member 4. The support member 3 is mounted and fixed on the pipe a to be processed. The rotating member 4 is movably connected to the support member 3 and rotates circumferentially along the pipe a to be processed. The feeding mechanism 2 is connected and fixed to the rotating member 4 through a support plate. The cutting tool 1 is connected to the feeding mechanism 2.

[0027] Furthermore, the support member 3 is in the shape of a ring along the circumference of the pipe a to be processed, and several abutting members 5 are arranged at intervals along its circumference for abutting against the circumferential wall of the pipe a to be processed. The abutting members 5 are adjustable in the radial direction of the support member 3. The abutting members 5 can be telescopic components such as cylinders or hydraulic cylinders, so that the support member 3 can be fixed to pipes a to be processed with different diameters, thereby increasing the applicability of the cutting device.

[0028] In this embodiment, the support member 3 is looped around the circumferential periphery of the pipe a to be processed. The top abutment 5 is a bolt. Several screw holes are spaced apart on the circumference of the support member 3. The bolts inserted into the screw holes are screwed in so that the bolts abut against the circumferential wall of the pipe a to be processed, thereby fixing the support member 3 to the pipe a to be processed. The structure is simple and easy to operate. It can effectively ensure the stability of the support member 3 and realize the stable and accurate positioning of the cutting device relative to the pipe a to be processed, thereby ensuring the stability and accuracy of the tool movement process and improving the cutting quality.

[0029] Furthermore, the rotating part 4 is annular along the circumference of the pipe a to be processed. The rotating part 4 is sleeved around the circumference of the pipe a to be processed and is movably connected to the support part 3. Specifically, an annular guide part along the circumference of the pipe a to be processed is provided on the support part. The annular guide part can be a guide groove or a guide flange opened on the support part. The rotating part is provided with a part that cooperates with the annular guide part, so that the rotating part rotates along the annular guide part, thereby driving the cutter to move along the circumference of the pipe a to be processed, thereby realizing annular cutting.

[0030] The circumferential rotating mechanism further comprises a power member 6 for driving the rotating member 4 to move circumferentially along the pipe a to be processed, in the embodiment, the power member 6 is connected to the support member 3, the power member 6 comprises a motor and a transmission assembly connected to the output shaft of the motor, and a gear ring is arranged on the rotating member 4 to cooperate with the transmission assembly for transmission, so that the motor drives the rotating member 4 to move circumferentially along the pipe a to be processed; the power member 6 can also be arranged on the rotating member 4, in this case, a gear ring is arranged on the support member 3 to cooperate with the transmission assembly for transmission, and in the same way, the motor drives the rotating member 4 to move circumferentially along the pipe a to be processed.

[0031] The feeding mechanism 2 adopts a linear motion mechanism, so that the cutter can be conveniently and accurately driven to feed and retract to control the cutting depth, and the feeding mechanism 2 can adopt a hydraulic cylinder, an air cylinder, etc., in the embodiment, the feeding mechanism 2 adopts a screw pair, the screw pair has a simple structure and can exert sufficient feeding force, thereby ensuring the cutting efficiency, and the screw pair has a self-locking function, so that the cutter can maintain a stable feeding position during the cutting process, thereby ensuring the cutting quality and avoiding damage to the cutter.

[0032] The cutting device further comprises an automatic feeding assembly for driving the screw of the screw pair to rotate, which can realize automatic feeding during the cutting process without manual operation, thereby reducing the labor intensity, and the automatic feeding assembly can adopt a motor connected to the screw of the screw pair, which is convenient to implement, but the motor needs an additional driving power source, a battery or a power supply line, and the structure is relatively complex and the use cost is high.

[0033] In the embodiment, the automatic feeding assembly comprises a gear 7 arranged on the screw of the screw pair and a poking member 8 arranged on the support member 3 for poking the gear 7 to rotate, the poking member 8 is in the form of a convex tooth engaged with the gear 7, and the poking member 8 is fixed in position on the circumferential position of the support member 3, specifically, only one poking member 8 is arranged on the entire circumference of the support member 3, that is, the gear 7 contacts the poking member 8 once when the rotating member 4 moves circumferentially along the pipe a to be processed for one turn, the gear 7 is poked by the poking member 8 to drive the screw of the screw pair to rotate and realize automatic feeding of the cutter, that is, the cutter cuts circumferentially along the pipe a to be processed for one turn and feeds automatically for one time, thereby realizing automatic feeding without manual operation and reducing the labor intensity, and the structure is simple and does not need a power source, which is convenient to implement and low in cost, the cutting for one turn and the automatic feeding for one time can ensure that the cutting depth does not change, the cutter has high durability, and the system is stable; of course, a plurality of poking members 8 can be arranged at intervals on the circumference of the support member 3, so that the cutter can feed automatically for a plurality of times when cutting circumferentially along the pipe a to be processed for one turn.

[0034] In the embodiment, the axial direction of the screw pair is along the axial direction of the pipe a to be processed, i.e. the feeding and retracting direction of the cutter is along the axial direction of the pipe a to be processed, the cutter 1 can be a cutting knife made of hard alloy, the cutter 1 contacts the connecting area in the radial direction of the pipe a to be processed, i.e. the cutter 1 is used to cut the connecting area in the radial direction of the pipe a to be processed, the screw pair drives the cutter 1 to feed after the cutter cuts one circle along the circumference of the pipe a to be processed, and the cutter penetrates and cuts off the connecting area in the radial direction of the pipe a to be processed after the cutter moves several circles along the circumference of the pipe a to be processed.

[0035] Embodiment two

[0036] The difference from the embodiment one is that the support is a component fixed on the pipe to be processed by a clamp or other means, the support can be of any structure, and an arc-shaped guide part along the circumference of the pipe to be processed is arranged on the support.

[0037] The arc-shaped guide part can be a guide groove opened on the support, or a guide flange, and a part matched with the arc-shaped guide part is arranged on the rotating member in the form of a circular ring, so that the rotating member moves along the arc-shaped guide part to drive the cutter to move along the circumference of the pipe to be processed, and then the annular cutting is realized.

[0038] Embodiment three

[0039] The difference from the embodiment one is that the rotating member is in the form of an arc segment along the circumference of the pipe to be processed, and the power member is arranged on the rotating member, in this case, a gear ring matched with the power member for transmission is arranged on the support in the form of a circular ring, and in the same way, the power member drives the rotating member to move along the circumference of the pipe to be processed when it operates, and then the annular cutting is realized.

[0040] The above is only the preferred embodiment of the present application, and it should be noted that the above preferred embodiment should not be regarded as a limitation of the present application, and the protection scope of the present application should be limited by the scope defined by the claims. For ordinary skilled in the art, several improvements and refinements can be made without departing from the spirit and scope of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A cutting device, characterized in that, The tool (1), a circumferential rotating mechanism and a feeding mechanism (2), the circumferential rotating mechanism drives the tool to rotate along the pipe (a) to be processed, the feeding mechanism (2) drives the tool (1) to feed and retreat, the feeding mechanism (2) feeds and retreats along the axial direction of the pipe (a) to be processed, and the tool (1) is used for cutting the connecting area of the pipe (a) to be processed in the radial direction; The circumferential rotating mechanism comprises a support (3) and a rotating part (4), the support (3) is fixed on the pipe (a) to be processed through a clamp, the rotating part (4) is movably connected to the support (3) and rotates along the pipe (a) to be processed, the tool (1) is arranged on the rotating part (4), the support (3) is provided with an arc-shaped guide part along the circumferential direction of the pipe (a) to be processed, the arc-shaped guide part is a guide groove or a guide flange formed on the support (3), and the rotating part (4) is annular along the circumferential direction of the pipe (a) to be processed and cooperates with the arc-shaped guide part. The feeding mechanism (2) is arranged on the rotating part (4), the tool (1) is connected to the feeding mechanism (2), the feeding mechanism (2) is a screw pair, and an automatic feeding assembly for driving the screw of the screw pair to rotate is further arranged, the automatic feeding assembly comprises a gear (7) arranged on the screw of the screw pair and a poking part (8) arranged on the support (3) and used for poking the gear (7) to rotate, and a plurality of poking parts (8) are arranged at intervals in the circumferential direction of the support (3).

2. The cutting device of claim 1, wherein, The circumferential rotating mechanism further comprises a power part (6) for driving the rotating part (4) to move along the circumferential direction of the pipe (a) to be processed, and the power part (6) is connected to the support (3) or the rotating part (4).

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