A pipe cutting device with easy adjustment

Abstract

The utility model relates to cutting device technical field discloses a pipeline cutting device convenient to adjust, including cutting table, be equipped with fixed distance board, cutting mechanism, positioning mechanism on cutting table, wherein, positioning mechanism includes movable press block, locating block, drive structure for controlling movable press block to go up and down, be equipped with locating groove on locating block, and the projection plane on the pipeline advancing path of locating groove is "V" letter shape structure. Through above technical scheme, solved the problem that the positioning structure in the prior art is more troublesome after the change of pipeline diameter size.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, and in particular to a pipe cutting device that is easy to adjust. Background Technology

[0002] Pipe cutting equipment generally refers to mechanical or electric tools or devices used for cutting various types of pipes.

[0003] Currently, to ensure the stability of pipes during cutting, the worktable (cutting table) is usually equipped with a positioning structure. Common positioning structures typically include limiting wedges and limiting pressure blocks. These wedges and pressure blocks usually have arc-shaped grooves for placing the pipe, ensuring compatibility with the pipe to be cut. However, the presence of these arc-shaped grooves means that only pipes of specific sizes can achieve good positioning on the cutting device. While this has been improved by designing the limiting pressure blocks to be movable, this only applies to pipes with a diameter smaller than the arc diameter of the groove. When the pipe diameter is larger than the arc diameter of the groove, the pipe will come into contact with the sharp corner of the groove opening. Especially when the cutting mechanism is cutting the pipe, the outer surface of the pipe is easily damaged, affecting the pipe quality.

[0004] Therefore, after the dimensions of the workpiece change, it is usually necessary to replace the parts of the positioning structure that come into contact with the pipe (such as the limiting pressure block, the limiting wedge block, etc.). The existing positioning structure usually has a very tight connection with the device, which makes the adjustment and replacement of the positioning structure in the pipe cutting device more troublesome, thus affecting production efficiency. Utility Model Content

[0005] The main purpose of this invention is to provide an easily adjustable pipe cutting device, which aims to solve the problem that the positioning structure is difficult to adjust after the pipe diameter changes in related technologies.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] An easily adjustable pipe cutting device includes a cutting table, a distance plate, a cutting mechanism, and a positioning mechanism. The positioning mechanism includes a movable pressure block, a positioning block, and a drive structure for controlling the lifting and lowering of the movable pressure block. The positioning block has a positioning groove, and the projection surface of the positioning groove on the pipe's forward path is a "V" shape.

[0008] In one possible implementation, the movable pressure block is provided with a first anti-wear roller, which is located at one end of the movable pressure block close to the positioning block and is rotatably connected to the movable pressure block.

[0009] Furthermore, both sides of the movable pressure block are provided with avoidance slopes, and each of the avoidance slopes is parallel to the wall of the positioning groove.

[0010] Furthermore, the first anti-wear roller is detachably connected to the movable pressure block. Both ends of the first anti-wear roller are provided with first mounting blocks. The movable pressure block is provided with first mounting grooves for the first anti-wear roller and each first mounting block to be embedded. Both ends of the first anti-wear roller are rotatably connected to each first mounting block. Each first mounting block and the movable pressure block are provided with a first fixing member for fixing the first mounting block. The first fixing member is threadedly connected to the first mounting block.

[0011] Furthermore, a reinforcing pin is provided between the movable pressure block and each of the first mounting blocks, and the reinforcing pin is provided with a mating hole. The first fixing member is threadedly connected to the mating hole and the first mounting block; the axis of the reinforcing pin is parallel to the horizontal plane.

[0012] Furthermore, the projection surface of the reinforcing pin in its axial direction is a polygonal structure.

[0013] In one possible implementation, each wall of the positioning groove is provided with a second anti-wear roller, and each second anti-wear roller is rotatably connected to the positioning block; the rotation axis of each second anti-wear roller is parallel to each wall of the positioning groove.

[0014] Furthermore, each of the second anti-wear rollers is detachably connected to the positioning block; each of the two ends of each of the second anti-wear rollers is provided with a second mounting block, and each of the second anti-wear rollers rotates between each adjacent second mounting block in a corresponding manner. Each groove wall of the positioning groove is provided with a second mounting groove for the second anti-wear roller and the second mounting block to be embedded in. Each second mounting block away from the driving structure is provided with a second fixing member between it and the positioning block for fixing the two.

[0015] Furthermore, the length of the second mounting groove is greater than the sum of the lengths of the second anti-wear roller and the two second mounting blocks; the cutting table is provided with a plurality of mating openings for mating with each of the adjacent second mounting blocks.

[0016] Furthermore, each of the second anti-wear shafts is misaligned and distributed on the positioning block.

[0017] The working principle and beneficial effects of this utility model are as follows:

[0018] The positioning mechanism of this utility model mainly includes a movable pressure block, a positioning block, and a drive structure for controlling the lifting and lowering of the movable pressure block. The positioning block has a positioning groove that penetrates the positioning block along the pipe's forward direction, and the projection surface of the positioning groove in the pipe's forward direction is a "V" shape. That is, this utility model's technical solution controls the lifting and lowering movement of the movable pressure block through the operation of the drive structure, creating a channel between the movable pressure block and the positioning block for pipes of various diameters to enter. Because this positioning and limiting channel is directly controlled by the drive structure, this utility model can quickly complete the adjustment work after the size of the workpiece to be processed changes.

[0019] Due to the circular structure of the pipe, after the movable pressure block resets and comes into contact with the pipe, the pipe to be processed maintains a three-point positioning and limiting relationship with this utility model, effectively ensuring the positioning effect of this utility model on the pipe to be cut. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of Example 1;

[0022] Figure 2 This is a schematic diagram showing the cooperation between the positioning mechanism and the cutting table in Example 1;

[0023] Figure 3 This is an exploded view of the first anti-wear roller and the various parts used to mount it in Example 1;

[0024] Figure 4 This is a schematic diagram of the structure of Example 2;

[0025] Figure 5 This is a schematic diagram showing the cooperation between the positioning mechanism and the cutting table in Example 2;

[0026] Figure 6 This is a schematic diagram showing the fit between the first anti-wear roller and the positioning block in Example 2;

[0027] Figure 7 for Figure 6 Enlarged view of a portion of point A in the middle.

[0028] Explanation of icon numbers:

[0029] 1. Cutting table; 101. Mating joint; 2. Spacer plate; 3. Cutting mechanism; 4. Positioning mechanism; 41. Movable pressure block; 411. Avoidance slope; 412. First mounting groove; 42. Positioning block; 421. Positioning groove; 422. Second mounting groove; 43. Drive structure; 5. First anti-wear roller; 6. First mounting block; 7. First fixing component; 8. Reinforcing pin; 81. Mating hole; 9. Second anti-wear roller; 10. Second mounting block; 11. Second fixing component.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0032] Example 1

[0033] like Figure 1 As shown, this embodiment proposes an easily adjustable pipe cutting device, including a cutting table 1, a spacer plate 2, a cutting mechanism 3, and a positioning mechanism 4. A moving structure for controlling the movement of the spacer plate 2 is provided between the spacer plate 2 and the cutting table 1. The moving structure is preferably a screw drive structure, meaning that the spacer plate 2 is displaced by a motor-controlled screw, thereby adjusting the pipe cutting length and changing the workpiece processing length. The cutting mechanism 3 mainly includes a cutting blade and a control structure for controlling the cutting blade to perform the cutting work. The cutting mechanism 3 is located between the spacer plate 2 and the positioning mechanism 4, so that when the pipe and the spacer plate 2 abut against each other, the pipe cutting length can be effectively confirmed.

[0034] The positioning mechanism 4 mainly includes a movable pressure block 41, a positioning block 42, and a drive structure 43 for controlling the lifting and lowering of the movable pressure block 41. Both the control structure and the drive structure 43 are preferably pressure-driven components such as hydraulic cylinders to ensure that there is enough force to move the movable pressure block 41, the cutting blade, and other structures to complete the corresponding work.

[0035] The positioning block 42 is provided with a positioning groove 421. The projection surface of the positioning groove 421 on the pipe's forward path is a "V" shape, and the positioning groove 421 penetrates the positioning block 42 itself along the pipe's forward direction to ensure that the positioning block 42 can well accommodate the pipe to be processed. Correspondingly, when the "V" shaped positioning groove 421 comes into contact with the circular pipe, there are at least two contact points between them. With the help of the movable pressure block 41, which performs the pressing work (coming into contact with the pipe) under the action of the driving structure 43, there are at least three contact points between the pipe to be cut and the positioning mechanism 4, thereby providing reliable constraint for the pipe and ensuring a good and reliable positioning effect for the pipe to be cut.

[0036] Furthermore, the movement of the movable pressure block 41 is directly controlled by the drive structure 43. That is, as the drive structure 43 operates, the distance between the positioning block 42 and the movable pressure block 41 can change rapidly, thereby adapting to pipes of various diameter specifications. Therefore, this embodiment can quickly complete the adjustment work after the size of the workpiece to be processed changes.

[0037] Preferably, the positioning block 42 is composed of two structural blocks, each of which has a right-angled triangular projection surface on the pipeline's forward path. Through the mutual cooperation of the structural blocks, the positioning block 42 structure with its own positioning groove 421 is directly formed, realizing the modular design of the positioning block 42 so that the worn parts can be directly replaced in the future.

[0038] like Figure 2 As shown, in order to reduce the friction between the pipe and the movable pressure block 41 during the movement, the movable pressure block 41 is provided with a first anti-wear roller 5. That is, the first anti-wear roller 5 replaces the movable pressure block 41 to contact the pipe. The first anti-wear roller 5 is located at the end of the movable pressure block 41 close to the positioning block 42 and is rotatably connected to the movable pressure block 41. In this way, when the pipe moves between the positioning block 42 and the movable pressure block 41, the sliding friction between the pipe and the movable pressure block 41 can be converted into rolling friction. Compared with sliding friction, rolling friction has less resistance to the pipe's forward movement. It can not only prevent the movable pressure block 41 from wearing due to contact with the pipe, but also make the movement of the pipe smoother.

[0039] If necessary, a pipeline conveying mechanism can also be provided for this embodiment to improve the continuity of pipeline cutting work and effectively improve pipeline production efficiency. The specific structure of the pipeline conveying mechanism should be determined according to the actual space conditions of the workshop, and will not be described in detail in this embodiment.

[0040] Both sides of the movable pressure block 41 are provided with avoidance slopes 411, and each avoidance slope 411 is parallel to each groove wall of the positioning groove 421. In this way, by means of the opening of each avoidance slope 411, the downward limit distance of the movable pressure block 41 is increased, effectively expanding the range of pipe diameters that this embodiment can target, and effectively improving the practicality of this embodiment.

[0041] The first anti-wear roller 5 is detachably connected to the movable pressure block 41 so that the first anti-wear roller 5 can be replaced when it wears. Specifically, each end of the first anti-wear roller 5 is provided with a first mounting block 6, and each end of the first anti-wear roller 5 is rotatably connected to the first mounting block 6. The movable pressure block 41 is provided with a first mounting groove 412 for the first anti-wear roller 5 and the first mounting blocks 6 to be embedded. That is, the first anti-wear roller 5 and the first mounting blocks 6 located on both sides are installed on the movable pressure block 41 in an embedded installation manner. In this way, as long as the first mounting blocks 6 and the movable pressure block 41 are fixed to each other, the first anti-wear roller 5 can be fixed on the movable pressure block 41 without affecting the rotational movement of the first anti-wear roller 5.

[0042] Specifically, each first mounting block 6 and the movable pressure block 41 is provided with a first fixing member 7 for fixing the first mounting block 6. The first fixing member 7 is threadedly connected to the first mounting block 6. The movable pressure block 41 is provided with a connecting hole for the first fixing member 7 to penetrate itself. The first fixing member 7 is preferably a common threaded part such as a bolt with a nut. That is, the first mounting block 6 is fixed on the movable pressure block 41 through the threaded connection between the first fixing member 7 and the first mounting block 6, which not only ensures the connection strength between the two, but also facilitates the subsequent replacement of the first anti-wear roller 5.

[0043] like Figures 2-3 As shown, a reinforcing pin 8 is provided between the movable pressure block 41 and each of the first mounting blocks 6. The reinforcing pin 8 penetrates both the movable pressure block 41 and the first mounting block 6. The axis of the reinforcing pin 8 is parallel to the horizontal plane. Thus, the presence of the reinforcing pin 8 provides double fixation between the first anti-wear roller 5 and each of the first mounting blocks 6 on the movable pressure block 41. In this way, even if the first fixing member 7 accidentally detaches from this embodiment, the first mounting block 6 will not fall directly off the movable pressure block 41, effectively improving the positional stability of the first mounting block 6 and the first anti-wear roller 5 in this embodiment.

[0044] Correspondingly, the reinforcing pin 8 is provided with a mating hole 81. The first fixing member 7 is threadedly connected to the mating hole 81 and the first mounting block 6. That is, the first fixing member 7 connects the reinforcing pin 8 and the first mounting block 6 at the same time, which can effectively ensure the positional stability of the reinforcing pin 8 in this embodiment.

[0045] In order to enable the mating hole 81 on the reinforcing pin 8 to quickly match the first fixing member 7, the projection surface of the reinforcing pin 8 in its axial direction is a polygonal structure. Preferably, the reinforcing pin 8 is a rectangular structure, and the mating hole 81 penetrates the reinforcing pin 8 itself. In this way, there is no need to specially adjust the insertion angle of the reinforcing pin 8, which effectively improves the assembly and adjustment efficiency of this embodiment.

[0046] Example 2

[0047] Based on Example 1, such as Figures 4-5 As shown, each groove wall of the positioning groove 421 in this embodiment is provided with a second anti-wear roller 9. That is, by adding a second anti-wear roller 9, this embodiment is an upgrade of embodiment 1.

[0048] Each of the second anti-wear rollers 9 is rotatably connected to the positioning block 42. That is, the presence of each of the second anti-wear rollers 9 replaces the groove walls of each positioning groove 421 in contacting the pipe, thereby converting the friction between the pipe and the positioning block 42 into rolling friction. This avoids damage to the positioning block 42 (each structural block) due to long-term contact with the pipe, improves the service life of the positioning block 42, and avoids the need to replace the positioning block 42 during the use of this embodiment.

[0049] The rotation axis of each second anti-wear roller 9 is parallel to each groove wall of the positioning groove 421, ensuring that each second anti-wear roller 9 can be distributed along the groove wall surface of each positioning groove 421, effectively ensuring the compatibility of each second anti-wear roller 9 with this embodiment.

[0050] Meanwhile, since each of the second anti-wear rollers 9 will wear out due to contact with the pipeline during use, each of the second anti-wear rollers 9 is detachably connected to the positioning block 42 in order to carry out the replacement of each of the second anti-wear rollers 9.

[0051] Specifically, each of the two ends of the second anti-wear roller 9 is provided with a second mounting block 10. Each groove wall of the positioning groove 421 is provided with a second mounting groove 422 for the second anti-wear roller 9 and the second mounting block 10 to be embedded. Each of the second anti-wear roller 9 rotates one-to-one between each of the adjacent second mounting blocks 10 (each of the second mounting blocks 10 in the same second mounting groove 422). Each of the second mounting blocks 10 away from the drive structure 43 and the positioning block 42 is provided with a second fixing member 11 for fixing the two. Correspondingly, each of the second mounting grooves 422 is provided with a fixing hole. Each of the second fixing members 11 passes through each of the second mounting blocks 10 and is located in the fixing hole. That is, each of the second fixing members 11 fixes the second mounting block 10 in the second mounting groove 422 by cooperating with the second mounting block 10 and the fixing hole. When the second anti-wear roller 9 needs to be replaced, only the second fixing member 11 needs to be removed. Furthermore, threaded components such as bolts can be used as the second fixing component 11 in this embodiment, that is, adding a threaded fit relationship on the basis of the pin fit, which effectively improves the positional stability of the second anti-wear roller 9 and each second mounting block 10 after fixing.

[0052] like Figures 6-7 As shown, the length of the second mounting groove 422 is greater than the sum of the lengths of the second anti-wear roller 9 and the two second mounting blocks 10. Thus, when the second fixing member 11 is removed, the second mounting block 10 can be moved along the second mounting groove 422, so that the second mounting block 10 is detached from the second anti-wear roller 9. Therefore, it is not necessary to remove the second anti-wear roller 9 and each of the second mounting blocks 10 from the second mounting groove 422 together, which facilitates the replacement of the second anti-wear roller 9.

[0053] Furthermore, the cutting table 1 is provided with a plurality of mating openings 101 for mating with each of the adjacent second mounting blocks 10. The presence of the mating openings 101 is for accommodating the second mounting blocks 10 close to the cutting table 1, thereby enabling the end of the second anti-wear roller 9 close to the cutting table 1 to fit the bottom of the positioning groove 421, effectively ensuring the coverage of the second anti-wear roller 9 on the side of the positioning groove 421, and thus ensuring the application range of this embodiment.

[0054] Furthermore, through the contact effect between the second mounting block 10 close to the cutting table 1 and the mating port 101, when the second mounting block 10 away from the cutting table 1 is fixed by the second fixing member 11 (a second anti-wear roller 9 is installed between the two second mounting blocks 10), one second fixing member can achieve the effect of fixing two second mounting blocks 10 at the same time.

[0055] Correspondingly, each of the second anti-wear rollers 9 is staggered on the positioning block 42. In this way, even if each of the second anti-wear rollers 9 is located in the positioning groove 421 in the form of a "protrusion", it can avoid the interference between the second anti-wear rollers 9 on different groove walls of the positioning groove 421, and effectively ensure the contact effect between the pipeline and each of the second anti-wear rollers 9.

[0056] If necessary, several second anti-wear rollers 9 can be equipped on each groove wall of the positioning groove 421. The second anti-wear rollers 9 are arranged sequentially along the linear direction. The specific number of arrays of each second anti-wear roller 9 should be determined according to the actual production needs of the workshop. This embodiment will not elaborate further.

[0057] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0058] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An easily adjustable pipe cutting device, comprising a cutting table (1), wherein the cutting table (1) is provided with a spacer plate (2), a cutting mechanism (3), and a positioning mechanism (4), characterized in that, The positioning mechanism (4) includes a movable pressure block (41), a positioning block (42), and a drive structure (43) for controlling the lifting and lowering of the movable pressure block (41). The positioning block (42) is provided with a positioning groove (421), and the projection surface of the positioning groove (421) on the pipeline forward path is a "V" shaped structure.

2. The easily adjustable pipe cutting device according to claim 1, characterized in that, The movable pressure block (41) is provided with a first anti-wear roller (5), which is located at one end of the movable pressure block (41) close to the positioning block (42) and is rotatably connected to the movable pressure block (41).

3. The easily adjustable pipe cutting device according to claim 2, characterized in that, Both sides of the movable pressure block (41) are provided with avoidance slopes (411), and each of the avoidance slopes (411) is parallel to each groove wall of the positioning groove (421).

4. The easily adjustable pipe cutting device according to claim 2 or 3, characterized in that, The first anti-wear roller (5) is detachably connected to the movable pressure block (41). Both ends of the first anti-wear roller (5) are provided with first mounting blocks (6). The movable pressure block (41) is provided with first mounting grooves (412) for the first anti-wear roller (5) and each first mounting block (6) to be embedded. Both ends of the first anti-wear roller (5) are rotatably connected to each first mounting block (6). Each first mounting block (6) and the movable pressure block (41) are provided with a first fixing member (7) for fixing the first mounting block (6). The first fixing member (7) is threadedly connected to the first mounting block (6).

5. The easily adjustable pipe cutting device according to claim 4, characterized in that, The movable pressure block (41) and each of the first mounting blocks (6) are provided with a reinforcing pin (8), and the reinforcing pin (8) is provided with a mating hole (81). The first fixing member (7) is threadedly connected to the mating hole (81) and the first mounting block (6). The axis of the reinforcing pin (8) is parallel to the horizontal plane.

6. The easily adjustable pipe cutting device according to claim 5, characterized in that, The projection surface of the reinforcing pin (8) in its axial direction is a polygonal structure.

7. The easily adjustable pipe cutting device according to claim 1 or 2, characterized in that, Each of the positioning grooves (421) is provided with a second anti-wear roller (9) on each groove wall, and each of the second anti-wear rollers (9) is rotatably connected to the positioning block (42); The rotation axis of each of the second anti-wear rollers (9) is parallel to each of the groove walls of the positioning groove (421).

8. The easily adjustable pipe cutting device according to claim 7, characterized in that, Each of the second anti-wear rollers (9) is detachably connected to the positioning block (42); Each of the second anti-wear rollers (9) has a second mounting block (10) at both ends. Each of the second anti-wear rollers (9) rotates between each adjacent second mounting block (10) in a corresponding manner. Each groove wall of the positioning groove (421) is provided with a second mounting groove (422) for the second anti-wear roller (9) and the second mounting block (10) to be embedded. Each of the second mounting blocks (10) away from the driving structure (43) and the positioning block (42) is provided with a second fixing member (11) for fixing the two.

9. The easily adjustable pipe cutting device according to claim 8, characterized in that, The length of the second mounting groove (422) is greater than the sum of the lengths of the second anti-wear roller (9) and the two second mounting blocks (10); The cutting table (1) is provided with a plurality of mating ports (101) for mating with each of the adjacent second mounting blocks (10).

10. The easily adjustable pipe cutting device according to claim 7, characterized in that, Each of the second anti-wear rollers (9) is misaligned on the positioning block (42).

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