Elbow pipe fitting cutting and clamping device

Abstract

The utility model discloses an elbow pipe fitting cutting and clamping device which comprises a base, a first clamping piece and a second clamping piece, the first clamping piece is rotatably installed on the base, the second clamping piece is located above the first clamping piece, and the second clamping piece is rotatably connected with a lifting mechanism and is driven by the lifting mechanism to ascend and descend. A clamping groove is formed in the first clamping piece in advance, a clamping groove is also formed in the second clamping piece in advance, when the lifting mechanism drives the second clamping piece to descend to abut against and be matched with the first clamping piece, the first clamping piece and the second clamping piece form a clamping cavity, and the clamping grooves of the first clamping piece and the second clamping piece are matched to form a clamping hole. When the lifting mechanism drives the second clamping piece to rise, the first clamping piece and the second clamping piece are separated, the pipe fitting can be placed into the clamping groove of the first clamping piece, when cutting machining needs to be conducted, the pipe fitting is placed, clamped and locked, one end of the pipe fitting is cut, then the other end of the pipe fitting is rotated to the cutting machine side to be cut again, fixing is accurate, and the pipe fitting does not need to be taken out in the cutting process; operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the field of pipe fitting processing technology, in particular to a cutting and clamping device for elbow pipe fittings. Background Art

[0002] With the development of modern mechanical processing industry, the requirements for the quality and precision of workpiece cutting are constantly improving, and the requirements for improving production efficiency, reducing production costs, and having highly intelligent automatic cutting functions are also increasing, and the same is true for pipe cutting;

[0003] Usually, due to different application scenarios and application methods, the specifications of pipe fittings are also different. Therefore, it is often necessary to cut the pipe fittings. Some current cutting process flows are to place the pipe fittings on a cutting machine for direct cutting. The pipe fittings are generally fixed by the cutting machine fixing device or manually fixed by workers. The cutting machine fixing device is usually only suitable for pipe fittings of a specific size. Even if the fixing device is adjustable, for special processing techniques, such as cutting both ends of an elbow pipe fitting, the elbow pipe fitting needs to be taken out after cutting one end, and the end to be cut needs to be placed on the cutting machine again, which is extremely inconvenient to operate. The manual fixing method is more likely to cause uneven cutting, resulting in a high defective rate. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a cutting and clamping device for elbow pipe fittings.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An elbow pipe cutting and clamping device comprises a base, a first clamping member and a second clamping member, wherein the first clamping member is rotatably mounted on the base, the second clamping member is located above the first clamping member, and the second clamping member is rotatably connected to a lifting mechanism and driven to rise and fall by the lifting mechanism;

[0007] At least one group of clamping grooves is preset on the first clamping member, and at least one group of clamping grooves is also preset on the second clamping member. When the lifting mechanism drives the second clamping member to descend to abut against the first clamping member, the first clamping member and the second clamping member cooperate to form a clamping cavity, and the clamping grooves of the first clamping member and the second clamping member cooperate to form a clamping hole. When the lifting mechanism drives the second clamping member to rise, the first clamping member and the second clamping member are separated, and the pipe to be cut can be placed in the clamping groove of the first clamping member.

[0008] Furthermore, the lifting mechanism is fixed on the base, and the lifting mechanism is a spring telescopic rod. When the first clamping member and the second clamping member are separated, the spring telescopic rod is in a compressed state, and when the first clamping member and the second clamping member are abutted and matched, the spring telescopic rod is in a normal state; the spring telescopic rod is driven up and down by a handle.

[0009] Furthermore, three groups of clamping grooves of different sizes are preset on the first clamping member and the second clamping member respectively. When the first clamping member and the second clamping member cooperate to form a clamping cavity, the three groups of clamping grooves cooperate to form three groups of clamping holes of different sizes.

[0010] Furthermore, a limiting column is preset on the first clamping member, and a limiting hole is preset on the second clamping member. The limiting column passes through the limiting hole to limit the relative rotational freedom between the first clamping member and the second clamping member.

[0011] Furthermore, the elbow pipe cutting and clamping device also includes a positioning mechanism, which is installed on the base and located on one side of the first clamping member, and is used to position the rotation angle of the first clamping member.

[0012] Furthermore, the positioning mechanism includes a slide groove and a positioning plate, the positioning plate is slidably connected in the slide groove, a first connecting plate is preset at the top of the distal end of the slide groove, and a second connecting plate is preset at the top of the proximal end of the positioning plate. The first connecting plate and the second connecting plate are connected by a spring, and when the positioning plate abuts against the first clamping member, the spring is in a normal state.

[0013] Furthermore, the positioning device also includes a push plate, one end of which abuts against the second connecting plate, and the other end of which is hinged to a fixed seat, and the fixed seat is rotatably connected to the base. A stop block is preset on one side of the slide groove, and the push plate can move upward over the stop block and abut against the inner side of the stop block.

[0014] Furthermore, the side of the positioning plate abutting against the first clamping member is V-shaped.

[0015] The beneficial effects of the utility model are:

[0016] The pipe to be cut is clamped by a clamp to avoid uneven cutting caused by manual fixing of the clamp. At the same time, multiple sets of clamping grooves are set to be suitable for elbow pipes of various sizes. The cutting machine is placed on one side of the clamping mechanism. After one end of the pipe is cut, the clamp is rotated to rotate the other end of the pipe to the cutting machine side and cut again. There is no need to take the pipe out of the clamping device. A positioning mechanism is set next to the clamp to ensure that the clamp is rotated to a fixed angle each time to ensure the accuracy of the cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 Schematic diagram of the three-dimensional structure of the elbow pipe cutting device in the embodiment;

[0019] Figure 2 A schematic diagram of the three-dimensional structure of the elbow pipe cutting device in another angle in the embodiment;

[0020] Figure 3 is a top view of the elbow pipe cutting device in the embodiment;

[0021] Figure 4 It is a front view of the elbow pipe cutting device in the embodiment;

[0022] Figure 5 It is a three-dimensional reference structure schematic diagram of the state change of the elbow pipe cutting device in the embodiment.

[0023] Explanation of the accompanying drawings: 1. base; 2. first clamping member; 3. second clamping member; 4. clamping groove; 5. spring telescopic rod; 6. handle; 7. limit column; 8. slide groove; 81. first connecting plate; 9. positioning plate; 91. second connecting plate; 10. push plate; 11. fixing seat; 12. stop block; 13. pipe to be cut. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. For example, the directions or positions indicated by terms such as "length", "width", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0025] The terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions; the terms "first", "second", etc. in the specification and claims of the present utility model or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] In the specification and claims of the utility model and the above-mentioned drawings, when an element is referred to as being "fixed on" or "mounted on" or "disposed on" or "connected to" another element, it may be directly or indirectly located on the other element. For example, when an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element.

[0027] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] Example

[0029] The pipe cutting process refers to the cutting of pipes to be processed or semi-finished products to meet specific specifications and be suitable for different usage scenarios. Some current cutting process flows are to place the pipes on a cutting machine for direct cutting. The pipes are generally fixed by the cutting machine fixture or by workers. The cutting machine fixture is usually only suitable for pipes of a specific size. Even if the fixture is adjustable, for special processing techniques, such as cutting both ends of an elbow pipe, the elbow pipe needs to be taken out after cutting one end, and the end to be cut needs to be placed on the cutting machine again, which is extremely inconvenient to operate. The manual fixation method is more likely to cause uneven cutting, resulting in a high defective rate.

[0030] In view of the above technical problems, this embodiment provides a cutting and clamping device for elbow pipe fittings, such as Figure 1-4 As shown, a cutting and clamping device for elbow pipe fittings comprises a base 1, a first clamping member 2, and a second clamping member 3, wherein the first clamping member 2 is rotatably mounted on the base 1, the second clamping member 3 is located above the first clamping member 2, and the second clamping member 3 is rotatably connected to a lifting mechanism and driven to rise and fall by the lifting mechanism;

[0031] At least one group of clamping grooves 4 is preset on the first clamping member 2, and at least one group of clamping grooves 4 is also preset on the second clamping member 3. When the lifting mechanism drives the second clamping member 3 to descend to abut against the first clamping member 2, the first clamping member 2 and the second clamping member 3 cooperate to form a clamping cavity, and the clamping grooves 4 of the first clamping member 2 and the second clamping member 3 cooperate to form a clamping hole. When the lifting mechanism drives the second clamping member 3 to rise, the first clamping member 2 and the second clamping member 3 are separated, and the pipe 13 to be cut can be placed in the clamping groove 4 of the first clamping member 2. Before starting the cutting process, the lifting mechanism drives the second clamping piece 3 to rise, and the second clamping piece 3 and the first clamping piece 2 are separated. At this time, the pipe 13 to be cut can be placed in the clamping groove 4 of the first clamping piece 2. The size of the clamping groove 4 is pre-processed to fit the size of the pipe 13 to be cut. After placement, the lifting mechanism drives the second clamping piece 3 to descend to the first clamping piece 2 to abut and cooperate to form a clamping cavity. The clamping grooves 4 of the two cooperate to form a clamping hole to lock the pipe 13 to be cut. The to-be-cut part of the pipe to be cut is exposed to the clamping cavity. The cutting machine is placed on one side of the elbow pipe clamping device and is placed parallel to the clamping device. After one end of the pipe is cut, since the first clamping piece 2 and the base 1, and the second clamping piece 3 and the lifting mechanism are rotatably connected, the clamping cavity can be directly rotated on the base 1 to rotate the other end of the pipe to the cutting machine side for cutting. After cutting, the two clamps are separated, the pipe 13 to be cut is taken out, and the next pipe is cut. The whole process of cutting does not require taking out the pipe fittings, only the clamping parts need to be rotated, and the fixing method of the clamping parts is more reliable than manual fixing, and the cutting is more accurate.

[0032] Preferably, the lifting mechanism is fixed on the base 1, and the lifting mechanism is a spring telescopic rod 5. When the first clamp 2 and the second clamp 3 are separated, the spring telescopic rod 5 is in a compressed state, and when the first clamp 2 and the second clamp 3 are abutted and matched, the spring telescopic rod 5 is in a normal state; the spring telescopic rod 5 is driven up and down by a handle 6. When it is necessary to place a pipe fitting, the worker lifts the second clamp 3 by lifting the handle, puts in the pipe fitting, and then pulls down the handle 6 to fix the pipe fitting, which is convenient to operate.

[0033] Preferably, three groups of clamping grooves 4 of different sizes are preset on the first clamping member 2 and the second clamping member 3, respectively. When the first clamping member 2 and the second clamping member 3 cooperate to form a clamping cavity, the three groups of clamping grooves 4 cooperate to form three groups of clamping holes of different sizes. The purpose of setting multiple groups of clamping grooves 4 is to achieve multi-purpose use and to achieve key clamping of different sizes. It should be noted by those skilled in the art that the clamping device of the elbow pipe fitting is recorded in this embodiment, so the two grooves of each group of clamping grooves 4 are in a vertical relationship in the horizontal plane, so multiple clamping grooves 4 can be respectively set on the four sides of the clamping member to achieve a variety of clamping groove 4 combinations. If there is enough space, more groups of clamping grooves can be set, so a clamping device with more groups of clamping grooves than the utility model should also be within the protection scope of the utility model.

[0034] Preferably, a limit column 7 is preset on the first clamping member 2, and a limit hole is preset on the second clamping member 3. The limit column 7 passes through the limit hole to limit the relative rotational freedom between the first clamping member 2 and the second clamping member 3. Since the first clamping member 2 and the second clamping member 3 can rotate relative to the base 1 and the lifting mechanism respectively, but the rotation may not be synchronous, the limit column 7 and the limit hole are arranged to cooperate with each other to limit the freedom of the first clamping member 2 and the second clamping member 3, thereby ensuring the synchronous rotation of the two clamps and avoiding the need for manual alignment every time the clamps are rotated.

[0035] Preferably, the elbow pipe cutting and clamping device further comprises a positioning mechanism, wherein the positioning mechanism is mounted on the base 1 and is located on one side of the first clamping member 2 for positioning the rotation angle of the first clamping member.

[0036] Specifically, the positioning mechanism includes a slide slot 8 and a positioning plate 9, and the positioning plate 9 is slidably connected in the slide slot 8. A first connecting plate 81 is preset at the top of the distal end of the slide slot 8, and a second connecting plate 91 is preset at the top of the proximal end of the positioning plate 9. The first connecting plate 81 and the second connecting plate 82 are connected by a spring. When the positioning plate 9 abuts against the first clamping member 2, the spring is in a normal state; the positioning device is used to locate the rotation angle of the clamping member. After the pipe is placed, the second connecting plate 81 is pushed back, the spring is compressed, the positioning plate 8 retreats to a certain extent, and the clamping member starts to rotate. After rotating to the corresponding angle, the second connecting plate 91 is stopped from being pushed back, and the spring returns to a normal state, driving the positioning plate 8 to move forward until it abuts against the first clamping member 2. After abutment, the front end of the positioning plate 8 is completely parallel to the first clamping member 2. At this time, the rotation angle of the first clamping member 2 is fixed, and the clamping member is completely parallel to the cutting machine at this time, thereby ensuring the accuracy of the cutting process.

[0037] Furthermore, the positioning device further comprises a push plate 10, the push plate 10 abuts against the second connecting plate 91, the push plate 10 is hinged to a fixed seat 11, the fixed seat 11 is rotatably connected to the base 1, a stopper 12 is preset on one side of the slide slot 8, and the push plate 10 can move upward to pass over the stopper 12 and abut against the inner side of the stopper 12; during the positioning process, the worker can push the second connecting plate 91 back by pulling the push plate 10, and the push plate 10 can move upward to pass over the stopper 12 and abut against the inner side of the stopper 12, as shown in FIG. Figure 5 As described above, the stopper 12 limits the movement of the push plate 10. At this time, the first clamping member 2 can be rotated freely. After the angle is roughly adjusted, the push plate 10 is reset, the positioning plate 9 abuts against the first clamping member 2, and the first clamping member 2 is fine-tuned to be completely parallel to the positioning plate 9. The positioning is completed, and it is extremely convenient for workers to operate, and can be operated by one person.

[0038] Preferably, the side of the positioning plate 9 abutting against the first clamping member 2 is V-shaped. During positioning, when both ends of the V-shaped positioning side abut against the first clamping member 2 in parallel, the first clamping member 2 is positioned, further improving the positioning accuracy.

[0039] During specific implementation, pull up the handle 6 until the first clamping piece 2 and the second clamping piece 3 are separated, put the key 13 to be cut into the clamping groove 4, release the handle 6, and the two clamping pieces cooperate to form a clamping cavity to fix the key 13 to be cut, pull the push plate 10 and lock it on the inner side of the stopper 12, and the positioning plate 9 retracts to a state where it does not abut the first clamping piece 2, rotate the clamping piece, rotate the side of the pipe to be cut to the side of the cutting machine, reset the push plate 10, and abut the positioning plate 9 parallel to the first clamping piece 2 to start cutting. After the cutting is completed, push back the push plate 10 and rotate the first clamping piece 2 until the other end of the pipe rotates to the side of the cutting machine, reposition it, and cut again. After the cutting is completed, take out the pipe and put in the next key. The whole operation is convenient and accurate, and only one person is needed to complete the cutting process, which solves the problems of cumbersome pipe fixing process and inaccurate cutting in the prior art.

[0040] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A cutting and clamping device for elbow pipe fittings, characterized in that: It comprises a base, a first clamping member and a second clamping member, wherein the first clamping member is rotatably mounted on the base, the second clamping member is located above the first clamping member, and the second clamping member is rotatably connected to a lifting mechanism and driven to rise and fall by the lifting mechanism; At least one group of clamping grooves is preset on the first clamping member, and at least one group of clamping grooves is also preset on the second clamping member. When the lifting mechanism drives the second clamping member to descend to abut against the first clamping member, the first clamping member and the second clamping member cooperate to form a clamping cavity, and the clamping grooves of the first clamping member and the second clamping member cooperate to form a clamping hole. When the lifting mechanism drives the second clamping member to rise, the first clamping member and the second clamping member are separated, and the pipe to be cut can be placed in the clamping groove of the first clamping member.

2. The elbow pipe cutting and clamping device according to claim 1, characterized in that: The lifting mechanism is fixed on the base, and the lifting mechanism is a spring telescopic rod. When the first clamping member and the second clamping member are separated, the spring telescopic rod is in a compressed state, and when the first clamping member and the second clamping member are abutted and matched, the spring telescopic rod is in a normal state; the spring telescopic rod is driven to move up and down by a handle.

3. The elbow pipe cutting and clamping device according to claim 1, characterized in that: The first clamping member and the second clamping member are respectively preset with three groups of clamping grooves of different sizes. When the first clamping member and the second clamping member cooperate to form a clamping cavity, the three groups of clamping grooves cooperate to form three groups of clamping holes of different sizes.

4. The elbow pipe cutting and clamping device according to claim 1, characterized in that: A limiting column is preset on the first clamping member, and a limiting hole is preset on the second clamping member. The limiting column passes through the limiting hole to limit the relative rotational freedom between the first clamping member and the second clamping member.

5. The elbow pipe cutting and clamping device according to claim 1, characterized in that: The elbow pipe cutting and clamping device also includes a positioning mechanism, which is installed on the base and located on one side of the first clamping member, and is used to position the rotation angle of the first clamping member.

6. The elbow pipe cutting and clamping device according to claim 5, characterized in that: The positioning mechanism includes a slide groove and a positioning plate. The positioning plate is slidably connected in the slide groove. A first connecting plate is preset at the top of the distal end of the slide groove, and a second connecting plate is preset at the top of the proximal end of the positioning plate. The first connecting plate and the second connecting plate are connected by a spring. When the positioning plate abuts against the first clamping member, the spring is in a normal state.

7. The elbow pipe cutting and clamping device according to claim 6, characterized in that: The positioning mechanism also includes a push plate, one end of which abuts against the second connecting plate, and the other end of which is hinged to a fixed seat. The fixed seat is rotatably connected to the base, and a stop block is preset on one side of the slide groove. The push plate can move upward to pass over the stop block and abut against the inner side of the stop block.

8. The elbow pipe cutting and clamping device according to claim 6, characterized in that: The side of the positioning plate abutting against the first clamping member is V-shaped.

Images