An oblique tee contact surface scribing device

Abstract

This utility model belongs to the technical field of oblique tee manufacturing, specifically relating to a marking device for the contact surface of an oblique tee, including a base plate, a marking mechanism, a stand, a rotating mechanism, and an oblique tube clamping mechanism. The marking mechanism includes a guide mechanism and two semi-circular plates. The guide mechanism is mounted on the base plate, and the two semi-circular plates are positioned on the guide mechanism and can move linearly along it. Multiple sleeves arranged in an equidistant ring are fixed through and fixed to each semi-circular plate, and a dotted rod is slidably inserted into each sleeve. The bottom end of the stand is fixed to the upper surface of the base plate, and the top end of the stand has a through hole. One end of the rotating rod is rotatably installed in the through hole, and a rotating mechanism for rotating the rod is installed on the outside of the stand. This device achieves the technical effect of rapid marking of batches of products of the same specification, and can mark oblique tubes of various angles and specifications.

Description

Technical Field

[0001] This utility model belongs to the technical field of oblique tee manufacturing, specifically relating to a marking device for the contact surface of an oblique tee. Background Technology

[0002] A pipe fitting with three openings is called a tee. Tee fittings are widely used in pipeline networks for transporting liquids and gases; depending on the medium being transported, tee fittings are made of materials such as cast iron, cast steel, cast copper, cast aluminum, plastic, and glass.

[0003] On oblique tees, it is necessary to quickly scribing and cutting the obliquely inserted steel pipe ends to create a shape and angle that fits the arc surface of the parallel pipe below. Currently, on-site work requires drawing the unfolded steel pipe diagram on a mobile phone or computer or through calculation, then taking points on the steel pipe to determine the position of the shape, and then connecting all the points. This operation is too cumbersome and time-consuming, and not suitable for mass production. Therefore, an oblique tee contact surface scribing device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a marking device for the contact surface of a skewed tee, which can solve the problem that the existing method of quickly marking and cutting the ends of skewed steel pipes is too cumbersome and time-consuming.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A scribing device for the contact surface of an oblique tee includes a base plate, a scribing mechanism, a stand, a rotating rod, a rotating mechanism, and an oblique tube clamping mechanism.

[0007] The marking mechanism includes a guide mechanism and two semicircular plates. The guide mechanism is mounted on the base plate. The two semicircular plates are set on the guide mechanism and can move linearly along the guide mechanism. Each of the two semicircular plates is fitted with a plurality of sleeves that are distributed in an equal-distance ring. A dotted rod is slidably inserted into each sleeve. The end of each dotted rod near the center of the base plate is coated with pigment. Limiting plates are provided on both sides of the upper surface of the base plate corresponding to the semicircular plates.

[0008] The bottom end of the upright is fixed to the upper surface of the base plate, and a through hole is provided at the top end of the upright. One end of the rotating rod is rotatably installed in the through hole, and a rotating mechanism for rotating the rotating rod is installed on the outside of the upright.

[0009] The inclined tube clamping mechanism is located on the other end of the rotating rod for clamping the inclined tube.

[0010] In some embodiments, the guiding mechanism includes at least two first guide rods;

[0011] A rectangular groove is provided on the base plate. The two ends of the first guide rod are respectively fixedly set on the two ends inside the rectangular groove. Two sliders are slidably sleeved on each of the first guide rods, and the tops of the two sliders are respectively fixed to the straight edges of the two semicircular plates.

[0012] In some embodiments, the rotating mechanism includes a worm and a worm wheel;

[0013] Two fixing blocks are fixed on the outer side of the support frame. The fixing blocks have round holes. The two ends of the worm are respectively rotatably installed in the two round holes. The worm wheel is coaxially fixed with the rotating rod and meshes with the worm.

[0014] In some embodiments, a protractor is fixed to the top of the stand, and the protractor is coaxially arranged with the rotating rod, and the pointer of the protractor is fixed to the rotating rod.

[0015] In some embodiments, the inclined tube clamping mechanism includes a reference block, two moving blocks, and three clamping blocks;

[0016] The reference block is fixed to the rotating rod at the middle position of one side of its outer wall. A groove is provided on the other side of the reference block. Inside the groove, there are two moving blocks and a centering structure that enables the two moving blocks to move in a centered manner. One of the three clamping blocks is fixed to one of the moving blocks, and the other two clamping blocks are fixed to the other moving block. The clamping blocks on the two moving blocks are staggered.

[0017] In some embodiments, the inner sides of the clamping blocks on both moving blocks are provided with notches in the shape of "︺".

[0018] In some embodiments, the centering structure includes a bidirectional threaded rod and at least one second guide rod;

[0019] The groove has rotating holes at both ends, and the two ends of the bidirectional threaded rod are respectively provided with threads in opposite directions. The two ends of the bidirectional threaded rod are respectively rotatably installed in the two rotating holes, and the two ends of the second guide rod are respectively fixedly connected to the two ends of the groove.

[0020] The two movable blocks are respectively threaded to both ends of the bidirectional threaded rod and slidably sleeved on the two second guide rods.

[0021] Compared with the prior art, the present invention has at least one of the following advantages or beneficial effects:

[0022] This utility model discloses a scribing device for the contact surface of an oblique tee. An oblique tube clamping mechanism holds the oblique tube, positioning its bottom end between two semicircular plates. A rotating mechanism adjusts the angle of the oblique tube. Pushing the semicircular plates causes the dotted rods on them to contact the oblique tube, applying dots to the outer side of the tube. This results in dense dots on the outer side of the tube, defining the cutting range. This effectively solves the problem of existing technologies requiring on-site layout drawing of the steel pipe on a mobile phone or computer, followed by point selection on the pipe to determine the shape, and then connecting all the points. This cumbersome and time-consuming process is unsuitable for mass production. The device achieves rapid scribing for batches of products of the same specification, and can scribing oblique tubes of various angles and specifications. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the oblique three-way contact surface marking device in an embodiment of the present utility model from a first-view perspective.

[0024] Figure 2 This is a two-dimensional structural diagram of the oblique three-way contact surface marking device in an embodiment of the present invention from a second perspective.

[0025] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0026] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0027] Figure 5 This is a three-dimensional structural diagram of the oblique three-way contact surface marking device in an embodiment of the present utility model from a third-view perspective.

[0028] Figure 6 This is a three-dimensional structural diagram of the inclined tube clamping mechanism of this utility model.

[0029] In the diagram: 1. Base plate; 2. Limiting plate; 3. Semicircular plate; 4. Dotted line rod; 5. Stand; 6. Inclined tube clamping mechanism; 7. Rotating rod; 8. Pointer; 9. Protractor; 10. First guide rod; 11. Worm gear; 12. Fixing block; 13. Worm wheel; 14. Sleeve; 15. Slider; 16. Clamping block; 17. Moving block; 18. Bidirectional threaded rod; 19. Second guide rod; 20. Reference block. Detailed Implementation

[0030] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0031] like Figures 1-6 As shown, this embodiment discloses a marking device for the contact surface of an oblique tee. Specifically, the marking device includes a base plate 1, a marking mechanism, a stand 5, a rotating rod 7, a rotating mechanism, and an oblique tube clamping mechanism 6. The marking mechanism includes a guide mechanism and two semicircular plates 3. The guide mechanism is mounted on the base plate 1, and the two semicircular plates are set on the guide mechanism and can move linearly along the guide mechanism. Each of the two semicircular plates 3 has multiple sleeves 14 that are equidistantly distributed in a ring around the center of the semicircular plate 3. Each sleeve 14 has a dotted rod 4 slidably inserted into it, and each dotted line... The rod 4 has a dome structure with paint on one end near the middle of the base plate 1. Limiting plates 2 are provided on both sides of the upper surface of the base plate 1 corresponding to the semicircular plates 3 to limit the dot line rod 4 and make each dot line rod 4 flush with the top and bottom. The bottom end of the stand 5 is fixed to the upper surface of the base plate 1. The top end of the stand 5 has a through hole. One end of the rotating rod 7 is rotatably installed in the through hole. A rotating mechanism for rotating the rotating rod 7 is installed on the outside of the stand 5. The inclined tube clamping mechanism 6 is provided on the other end of the rotating rod 7 to clamp the inclined tube.

[0032] Specifically, the aforementioned guiding mechanism includes two first guide rods 10; a rectangular groove is provided on the base plate 1, and the two ends of the first guide rod 10 are respectively fixedly set at the two ends inside the rectangular groove. Two sliders 15 are slidably sleeved on each first guide rod 10, and the tops of the two sliders 15 are respectively fixed to the straight edges of the two semicircular plates 3.

[0033] The aforementioned rotating mechanism includes a worm gear 11 and a worm wheel 13. Two mutually aligned fixing blocks 12 are fixed to the outer side of the support frame 5. Each fixing block 12 has a circular hole, and both ends of the worm gear 11 are rotatably installed within the two circular holes. The worm wheel 13 is coaxially fixed to the rotating rod 7 and meshes with the worm gear 11. A protractor 9 is fixed to the top of the support frame 5, and the protractor 9 is coaxially arranged with the rotating rod 7. The pointer 8 of the protractor 9 is fixed to the rotating rod 7 so that it rotates with the rotation of the rotating rod 7.

[0034] The aforementioned inclined tube clamping mechanism 6 includes a reference block 20, two movable blocks 17, and three clamping blocks 16. One side of the reference block 20 is fixed to the rotating rod 7 at its midpoint. A groove is formed on the other side of the reference block 20, inside which are arranged two movable blocks 17 and a centering structure for centering the two movable blocks 17. One of the clamping blocks 16 is fixed to one of the movable blocks 17, and the other two clamping blocks 16 are fixed to the other movable block 17. The clamping blocks 16 on the two movable blocks 17 are staggered. The inner sides of the clamping blocks 16 on the two movable blocks 17 each have a notch shaped like a "︺". The centering structure includes a bidirectional threaded rod 18 and two second guide rods 19. Rotating holes are provided at both ends of the groove. The two ends of the bidirectional threaded rod 18 are respectively provided with threads in opposite directions (one end is a left-hand thread, and the other end is a right-hand thread). The two ends of the bidirectional threaded rod 18 are rotatably installed in the two rotating holes. The two ends of the two second guide rods 19 are respectively fixedly connected to the two ends of the groove. Two moving blocks 17 are respectively threaded to the two ends of the bidirectional threaded rod 18 and slidably sleeved on the two second guide rods 19 (i.e., the two moving blocks 17 are respectively threaded to the opposite threaded ends of the bidirectional threaded rod 18 and simultaneously slidably sleeved on the two second guide rods 19).

[0035] The specific usage method of the above-mentioned oblique tee contact surface marking device includes:

[0036] The first step is to place the inclined tube between the clamping blocks 16 on the two moving blocks 17, with the bottom end of the inclined tube placed between the two semicircular plates 3.

[0037] The second step is to rotate the double threaded rod. The two ends of the double threaded rod are driven by the thread to bring the two moving blocks 17 closer to each other until the clamping blocks 16 on the two moving blocks 17 come into contact with the inclined tube, thus completing the clamping.

[0038] The third step is to rotate the worm gear 11. The worm gear 11 drives the rotating rod 7 to rotate in the through hole of the stand 5 through the worm wheel 13 that meshes with it. When the rotating rod 7 rotates, the pointer 8 on the rotating rod 7 moves accordingly. After the tip of the pointer 8 points to the designated scale line of the protractor 9, the rotating rod 7 is then stopped.

[0039] Fourth step: Apply paint to one end of the dome structure of the dotted rod 4 on the semicircular plate 3, push the semicircular plate 3, and make the dotted rod 4 on the semicircular plate 3 contact the inclined tube. The dome structure on the dotted rod 4 on the semicircular plate 3 applies paint to the outside of the inclined tube, so that the outside of the inclined tube is covered with dense dots. Since the dotted rod 4 is slidably set in the sleeve 14, when the dotted rod 4 moves with the semicircular plate 3 to its dome and contacts the outside of the inclined tube, the dotted rod 4 will move backward after hitting the outside of the inclined tube, so as not to affect other dotted rods 4 hitting the outside of the inclined tube.

[0040] Step 5: When the welding angle changes, simply adjust the angle of the inclined tube (i.e., follow the steps in step 3), and then repeat the above steps (step 4). There is no need to recalculate using a computer.

[0041] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A marking device for the contact surface of an oblique tee, characterized in that: Includes base plate, marking mechanism, upright frame, rotating rod, rotating mechanism and inclined tube clamping mechanism; The marking mechanism includes a guide mechanism and two semicircular plates. The guide mechanism is mounted on the base plate. The two semicircular plates are set on the guide mechanism and can move linearly along the guide mechanism. Each of the two semicircular plates is fitted with a plurality of sleeves that are distributed in an equal-distance ring. A dotted rod is slidably inserted into each sleeve. The end of each dotted rod near the center of the base plate is coated with pigment. Limiting plates are provided on both sides of the upper surface of the base plate corresponding to the semicircular plates. The bottom end of the upright is fixed to the upper surface of the base plate, and a through hole is provided at the top end of the upright. One end of the rotating rod is rotatably installed in the through hole, and a rotating mechanism for rotating the rotating rod is installed on the outside of the upright. The inclined tube clamping mechanism is located on the other end of the rotating rod for clamping the inclined tube.

2. The marking device for the contact surface of the oblique tee as described in claim 1, characterized in that: The guiding mechanism includes: at least two first guide rods; A rectangular groove is provided on the base plate. The two ends of the first guide rod are respectively fixedly set on the two ends inside the rectangular groove. Two sliders are slidably sleeved on each of the first guide rods, and the tops of the two sliders are respectively fixed to the straight edges of the two semicircular plates.

3. The marking device for the contact surface of the oblique tee as described in claim 1, characterized in that: The rotating mechanism includes: a worm gear and a worm wheel; Two fixing blocks are fixed on the outer side of the support frame. The fixing blocks have round holes. The two ends of the worm are respectively rotatably installed in the two round holes. The worm wheel is coaxially fixed with the rotating rod and meshes with the worm.

4. The marking device for the contact surface of the oblique tee as described in claim 1, characterized in that: A protractor is fixed to the top of the stand, and the protractor is coaxially arranged with the rotating rod, and the pointer of the protractor is fixed on the rotating rod.

5. The marking device for the contact surface of the oblique tee as described in claim 1, characterized in that: The inclined tube clamping mechanism includes a reference block, two moving blocks, and three clamping blocks; The reference block is fixed to the rotating rod at the middle position of one side of its outer wall. A groove is provided on the other side of the reference block. Inside the groove, there are two moving blocks and a centering structure that enables the two moving blocks to move in a centered manner. One of the three clamping blocks is fixed to one of the moving blocks, and the other two clamping blocks are fixed to the other moving block. The clamping blocks on the two moving blocks are staggered.

6. The marking device for the contact surface of the oblique tee as described in claim 5, characterized in that: The inner sides of the clamping blocks on both moving blocks are provided with notches in the shape of "︺".

7. The marking device for the contact surface of an oblique tee as described in claim 5, characterized in that: The centering structure includes a bidirectional threaded rod and at least one second guide rod; The groove has rotating holes at both ends, and the two ends of the bidirectional threaded rod are respectively provided with threads in opposite directions. The two ends of the bidirectional threaded rod are respectively rotatably installed in the two rotating holes, and the two ends of the second guide rod are respectively fixedly connected to the two ends of the groove. The two movable blocks are respectively threaded to both ends of the bidirectional threaded rod and slidably sleeved on the two second guide rods.

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