An on-line pipe diameter measuring caliper

Abstract

This utility model relates to the field of pipe diameter measurement technology and discloses an online diameter measuring caliper for welded pipes, including a body and a probe. Multiple quick-release mechanisms are installed on the left side of the outer wall of the body, each used for quickly installing and removing the probe. A fixing mechanism is rotatably connected to the middle of the body to secure it. Each quick-release mechanism includes a quick-release frame, which is installed on the left side of the outer wall of the body. Fixing plates are fixedly connected to the upper and lower ends of each quick-release frame. The upper and lower ends of the probe have slots, and multiple engaging components are installed in the middle of the quick-release frame. In this utility model, the probe is placed into the quick-release frame, aligning the slots with the latches. Then, the pressing frame is released, and the first spring returns to its original position, pushing the latches into the slots of the probe 11 to complete the fixation, achieving quick installation and removal of the probe and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipe diameter measurement technology, and in particular to an online diameter measurement caliper for welded pipes. Background Technology

[0002] The online diameter measurement caliper for welded pipes is a real-time dimensional inspection device specifically designed for welded pipe production scenarios. Its core function is to dynamically monitor the diameter accuracy of welded pipes during continuous rolling and conveying to control product quality. Based on a stable mechanical structure, the device integrates laser ranging and displacement sensing elements, enabling it to quickly capture dimensional data at different points on the circumference of the welded pipe. Combined with automated control technology, it can automatically adjust the measurement position according to the welded pipe specifications, avoiding the inefficiencies and large errors caused by manual intervention. Furthermore, the data processing module performs real-time analysis and feedback of the collected information, providing timely warnings of diameter deviations. This ensures product compliance with standards while improving production continuity and intelligence.

[0003] During online measurement, the welded pipe is continuously conveyed at a certain speed. The probe must always be in contact with the pipe surface to collect diameter data in real time. This dynamic sliding contact generates continuous friction, causing wear marks on the probe surface. It needs to be replaced in a timely manner to ensure measurement accuracy. Existing welded pipe online diameter measurement calipers fix the probe to the caliper by installing magnetic materials and iron blocks on the probe and caliper body respectively, and the probe has a certain vibration resistance. However, this fixing method can only be used when the object being measured or the caliper body material is magnetic. It cannot be used for non-magnetic materials, and its applicability is narrow. Existing technology fixes the probe to the caliper by machining an external thread at the tail of the probe and screwing it into the internal thread hole on the caliper body. However, when changing the probe, the threads still need to be tightened and loosened in sequence, which increases the replacement time and reduces work efficiency. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides an online diameter measuring caliper for welded pipes, which aims to improve the problem in the prior art that the threads still need to be tightened and loosened sequentially when changing the probe, which increases the replacement time and reduces work efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an online diameter measuring caliper for welded pipes, comprising a body and a probe, wherein multiple quick-release mechanisms are installed on the left side of the outer wall of the body, each quick-release mechanism being used for quick disassembly and assembly of the probe; a fixing mechanism is rotatably connected to the middle of the body, the fixing mechanism being used to fix the body; each quick-release mechanism includes a quick-release frame, each quick-release frame being installed on the left side of the outer wall of the body; a fixing plate is fixedly connected to the upper and lower ends of the quick-release frame; slots are provided at the upper and lower ends of the probe; and multiple engaging components are installed in the middle of the quick-release frame.

[0006] As a further description of the above technical solution:

[0007] The lower locking assembly includes a pressing frame, the middle of the outer wall of the pressing frame is slidably connected to the interior of the fixing plate, a plurality of steel wires are fixedly connected to the top of the outer wall of the pressing frame, a plurality of support columns are fixedly connected to the interior of the quick-release frame, the outer walls of the steel wires are slidably connected to the outer walls of the support columns, a buckle is fixedly connected to the top of the outer wall of the steel wires, the outer wall of the buckle is slidably connected to the interior of the quick-release frame, and a first spring is fixedly connected to the bottom of the outer wall of the buckle, the bottom of the outer wall of the first spring is fixedly connected to the top of the outer wall of the fixing plate.

[0008] As a further description of the above technical solution:

[0009] The fixing mechanism includes a bidirectional threaded rod, which is rotatably connected to the middle of the machine body. A knob is fixedly connected to the front end of the outer wall of the bidirectional threaded rod. Multiple threaded blocks are installed on the outer wall of the bidirectional threaded rod, and the interiors of the multiple threaded blocks are threadedly connected to the outer wall of the bidirectional threaded rod. A fixing half-ring is fixedly connected to the bottom of the outer wall of the threaded blocks. A limit groove is opened at the bottom end of the machine body, and the interior of the limit groove is slidably connected to the outer wall of the fixing half-ring. A limiting component is fixedly connected to the right end of the outer wall of the bidirectional threaded rod.

[0010] As a further description of the above technical solution:

[0011] The limiting assembly includes a ratchet, the inner wall of which is fixedly connected to the right end of the outer wall of the bidirectional threaded rod. A pawl is mounted on the top of the ratchet, and a pull rod is fixedly connected to the top of the outer wall of the pawl. A protective cover is mounted on the outer side of the ratchet, and the outer wall of the pull rod is slidably connected to the inside of the top of the protective cover. The front side of the outer wall of the protective cover is fixedly connected to the rear side of the outer wall of the machine body.

[0012] As a further description of the above technical solution:

[0013] Mounting brackets are installed on the front and rear sides of the left end of the machine body. Support rods are installed on the left end of each mounting bracket. A second spring is installed on the left side of the machine body. The outer walls of each mounting bracket are fixedly connected to the outer walls of the second spring.

[0014] As a further description of the above technical solution:

[0015] An instrument panel is installed on the top of the outer wall of the machine body, and the instrument panel adopts a circular design.

[0016] As a further description of the above technical solution:

[0017] A fixing column is installed on the outer bottom of the body, and the outer wall of the fixing column is slidably connected to the outer wall of the fixing half ring.

[0018] As a further description of the above technical solution:

[0019] A flange is fixedly connected to the left side of the outer wall of the fixed column, and multiple bolts are installed around the flange.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, pressing the pressing frame causes it to slide along the inside of the fixed plate, which in turn moves the steel wire at the top of the outer wall. This causes the steel wire to slide along the outer wall of the support column inside the quick-release frame. The top of the steel wire is connected to the buckle. The movement of the steel wire causes the buckle to move into the quick-release frame and continuously compress the first spring to accumulate elastic potential energy. At this time, the probe can be placed into the quick-release frame so that the slot corresponds to the buckle. Then, the pressing frame is released, and the first spring returns to its original position, pushing the buckle into the slot of the probe 11 to complete the fixation. This achieves quick assembly and disassembly of the probe and improves work efficiency.

[0022] 2. In this utility model, rotating the knob causes the bidirectional threaded rod to rotate in the middle of the machine body, thereby causing the two threaded blocks on the outer wall of the bidirectional threaded rod to move. Due to the restriction of the limiting groove, when the bidirectional threaded rod rotates, the two threaded blocks can only slide in the limiting groove along the axial diameter direction of the bidirectional threaded rod, thereby causing the two fixed half rings to move. By adjusting the distance between the two fixed half rings, the fixing column is clamped, and finally the machine body is quickly fixed. Attached Figure Description

[0023] Figure 1 This is a front view of a welded pipe online diameter measuring caliper proposed in this utility model;

[0024] Figure 2 This is a perspective view of a welded pipe online diameter measuring caliper proposed in this utility model;

[0025] Figure 3 This is a side view of a welded pipe online diameter measuring caliper proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of a quick-release mechanism for an online diameter measuring caliper for welded pipes proposed in this utility model;

[0027] Figure 5 This is a cross-sectional view of a quick-release mechanism for an online diameter measuring caliper for welded pipes proposed in this utility model;

[0028] Figure 6 for Figure 5 Enlarged view at point A;

[0029] Figure 7This diagram illustrates the fixing mechanism of an online diameter measuring caliper for welded pipes proposed in this utility model.

[0030] Legend:

[0031] 1. Body; 2. Quick-release mechanism; 201. Quick-release bracket; 202. Fixing plate; 203. Slot; 204. Engaging assembly; 2041. Pressing bracket; 2042. Steel wire; 2043. Support column; 2044. First spring; 2045. Buckle; 3. Fixing mechanism; 301. Two-way threaded rod; 302. Knob; 303. Threaded block; 304. Fixing half ring; 305. Limiting assembly; 3051. Ratchet; 3052. Pawl; 3053. Pull rod; 3054. Protective cover; 306. Limiting groove; 4. Support rod; 5. Instrument panel; 6. Fixing column; 7. Flange; 8. Bolt; 9. Mounting bracket; 10. Second spring; 11. Probe. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 4 , Figure 5 and Figure 6 An embodiment of this utility model is provided: an online diameter measuring caliper for welded pipes, including a body 1 and a probe 11. Multiple quick-release mechanisms 2 are installed on the left side of the outer wall of the body 1. The multiple quick-release mechanisms 2 are used to quickly install and remove the probe 11. A fixing mechanism 3 is rotatably connected to the middle of the body 1. The fixing mechanism 3 is used to fix the body 1.

[0034] Multiple quick-release mechanisms 2 each include a quick-release frame 201. Multiple quick-release frames 201 are installed on the left side of the outer wall of the body 1. The upper and lower ends of the quick-release frame 201 are fixedly connected to a fixing plate 202. The upper and lower ends of the probe 11 are provided with slots 203. Multiple locking components 204 are installed in the middle of the quick-release frame 201.

[0035] The lower locking assembly 204 includes a pressing frame 2041. The middle part of the outer wall of the pressing frame 2041 is slidably connected to the interior of the fixing plate 202. Multiple steel wires 2042 are fixedly connected to the top of the outer wall of the pressing frame 2041. Multiple support columns 2043 are fixedly connected to the interior of the quick-release frame 201. The outer walls of the steel wires 2042 are slidably connected to the outer walls of the support columns 2043. A buckle 2045 is fixedly connected to the top of the outer wall of the steel wires 2042. The outer wall of the buckle 2045 is slidably connected to the interior of the quick-release frame 201. A first spring 2044 is fixedly connected to the bottom of the outer wall of the buckle 2045. The bottom of the outer wall of the first spring 2044 is fixedly connected to the top of the outer wall of the fixing plate 202.

[0036] Specifically, pressing the pressing bracket 2041 allows it to slide inside the fixed plate 202, thereby moving the steel wire 2042 on the top of the outer wall. This causes the steel wire 2042 to slide along the outer wall of the support column 2043 inside the quick-release bracket 201. The top of the steel wire 2042 is connected to the buckle 2045. The movement of the steel wire 2042 causes the buckle 2045 to move inwards into the quick-release bracket 201, continuously compressing the first spring 2044 and accumulating its elastic potential energy. At this point, the probe 11 can be placed into the quick-release bracket 201, so that the slot 203 corresponds to the buckle 2045. Then, release the pressing bracket 2041, and the first spring 2044 will reset and push the buckle 2045 into the slot 203 of the probe 11 to complete the fixation. Press the pressing bracket 2041 again, and the buckle 2045 will quickly disengage from the slot 203, so that the probe 11 can be quickly removed. This achieves quick disassembly and assembly of the probe 11, reduces the replacement time of the probe 11, and improves work efficiency.

[0037] Reference Figure 2 , Figure 3 and Figure 7 The fixing mechanism 3 includes a bidirectional threaded rod 301, which is rotatably connected to the middle of the body 1. A knob 302 is fixedly connected to the front end of the outer wall of the bidirectional threaded rod 301. Multiple threaded blocks 303 are installed on the outer wall of the bidirectional threaded rod 301. The interior of the multiple threaded blocks 303 is threadedly connected to the outer wall of the bidirectional threaded rod 301. A fixing half-ring 304 is fixedly connected to the bottom of the outer wall of the threaded block 303. A limiting groove 306 is opened at the bottom end of the body 1. The interior of the limiting groove 306 is slidably connected to the outer wall of the fixing half-ring 304. A limiting component 305 is fixedly connected to the right end of the outer wall of the bidirectional threaded rod 301.

[0038] The limiting component 305 includes a ratchet 3051, the inner wall of which is fixedly connected to the right end of the outer wall of the bidirectional threaded rod 301. A pawl 3052 is installed on the top of the ratchet 3051. A pull rod 3053 is fixedly connected to the top of the outer wall of the pawl 3052. A protective cover 3054 is installed on the outer side of the ratchet 3051. The outer wall of the pull rod 3053 is slidably connected to the inside of the top of the protective cover 3054. The front side of the outer wall of the protective cover 3054 is fixedly connected to the rear side of the outer wall of the machine body 1.

[0039] Specifically, rotating the knob 302 causes the bidirectional threaded rod 301 to rotate in the middle of the machine body 1, thereby moving the two threaded blocks 303 on the outer wall of the bidirectional threaded rod 301. Due to the limitation of the limiting groove 306, when the bidirectional threaded rod 301 rotates, the two threaded blocks 303 can only slide in the limiting groove 306 along the axial diameter direction of the bidirectional threaded rod 301, thereby moving the two fixed half rings 304. By adjusting the distance between the two fixed half rings 304, the fixed column 6 is clamped. When the bidirectional threaded rod 301 rotates, the ratchet 3051 rotates synchronously. Through the cooperation of the pawl 3052 and the ratchet 3051, the bidirectional threaded rod 301 can be prevented from reversing. When it is necessary to loosen the machine body 1, pull the pull rod 3053 to disengage the moving pawl 3052 from the ratchet 3051, and rotate the knob 302 in the opposite direction to loosen the fixed half rings 304, thereby releasing the fixed state of the machine body 1 and finally achieving the rapid fixation of the machine body 1.

[0040] Reference Figure 1 , Figure 2 and Figure 3 Mounting brackets 9 are installed on the front and rear sides of the left end of the body 1. Support rods 4 are installed on the left end of multiple mounting brackets 9. A second spring 10 is installed on the left side of the body 1. The outer walls of multiple mounting brackets 9 are fixedly connected to the outer walls of the second spring 10. An instrument panel 5 is installed on the top of the outer wall of the body 1. The instrument panel 5 adopts a circular design. A fixing column 6 is installed on the bottom of the outer side of the body 1. The outer wall of the fixing column 6 is slidably connected to the outer wall of the fixing half ring 304. A flange 7 is fixedly connected to the left side of the outer wall of the fixing column 6. Multiple bolts 8 are installed around the flange 7.

[0041] Specifically, the front and rear sides of the machine body 1 are equipped with mounting brackets 9, which provide a mounting base for the support rod 4 and the second spring 10. The left end of the mounting bracket 9 is equipped with a support rod 4, which can be used to connect the quick-release mechanism 2. The outer wall of the mounting bracket 9 is connected to the outer wall of the second spring 10, so that the two mounting brackets 9 can be rotated inward under force. The top of the machine body 1 is equipped with an instrument panel 5, which adopts a circular design to match the structural layout of the top of the machine body 1 and facilitates data reading. The bottom of the outer side of the machine body 1 is equipped with a fixing column 6, which provides mounting support for the fixing half ring 304 and the flange 7. The fixing half ring 304 can be installed on the fixing column 6. The flange 7 is welded to the left side of the fixing column 6, and there are multiple bolts 8 around it. The flange 7 can be installed in the required position by the multiple bolts 8. The various components cooperate with each other, which not only ensures the structural stability and normal function of the machine body 1, but also improves the convenience of equipment operation and connection.

[0042] Working principle: Pressing the pressing frame 2041 allows it to slide along the inside of the fixed plate 202, thereby moving the steel wire 2042 on the top of the outer wall. This causes the steel wire 2042 to slide along the outer wall of the support column 2043 inside the quick-release frame 201. The top of the steel wire 2042 is connected to the buckle 2045. The movement of the steel wire 2042 causes the buckle 2045 to move inwards into the quick-release frame 201, continuously compressing the first spring 2044 and accumulating its elastic potential. Yes, at this time, the probe 11 can be placed into the quick-release bracket 201, so that the slot 203 corresponds to the buckle 2045. Then, release the pressing bracket 2041, and the first spring 2044 will return to its original position and push the buckle 2045 into the slot 203 of the probe 11 to complete the fixation. Press the pressing bracket 2041 again, and the buckle 2045 will quickly disengage from the slot 203, so that the probe 11 can be quickly removed. This achieves quick disassembly and assembly of the probe 11, reduces the replacement time of the probe 11, and improves work efficiency.

[0043] Rotating the knob 302 causes the bidirectional threaded rod 301 to rotate in the middle of the machine body 1, thereby moving the two threaded blocks 303 on the outer wall of the bidirectional threaded rod 301. Due to the limitation of the limiting groove 306, when the bidirectional threaded rod 301 rotates, the two threaded blocks 303 can only slide in the limiting groove 306 along the axial diameter direction of the bidirectional threaded rod 301, thereby driving the two fixed half rings 304 to move. By adjusting the distance between the two fixed half rings 304, the fixed column 6 is clamped. When the bidirectional threaded rod 301 rotates, the ratchet 3051 rotates synchronously. Through the cooperation of the pawl 3052 and the ratchet 3051, the bidirectional threaded rod 301 can be prevented from reversing. When it is necessary to loosen the machine body 1, pull the pull rod 3053 to disengage the moving pawl 3052 from the ratchet 3051, and rotate the knob 302 in the opposite direction to loosen the fixed half rings 304, thereby releasing the fixed state of the machine body 1 and finally achieving the rapid fixation of the machine body 1.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welded pipe online diameter measuring caliper, comprising a body (1) and a probe (11), characterized in that: Multiple quick-release mechanisms (2) are installed on the left side of the outer wall of the body (1). The multiple quick-release mechanisms (2) are used to quickly install and remove the probe (11). A fixing mechanism (3) is rotatably connected to the middle of the body (1). The fixing mechanism (3) is used to fix the body (1). Each of the quick-release mechanisms (2) includes a quick-release frame (201), and each of the quick-release frames (201) is installed on the left side of the outer wall of the body (1). The upper and lower ends of the quick-release frame (201) are fixedly connected to a fixing plate (202). The upper and lower ends of the probe (11) are provided with slots (203). Multiple locking components (204) are installed in the middle of the quick-release frame (201).

2. The welded pipe online diameter measuring caliper according to claim 1, characterized in that: The lower locking assembly (204) includes a pressing frame (2041). The middle part of the outer wall of the pressing frame (2041) is slidably connected to the interior of the fixing plate (202). A plurality of steel wires (2042) are fixedly connected to the top of the outer wall of the pressing frame (2041). A plurality of support columns (2043) are fixedly connected to the interior of the quick-release frame (201). The outer wall of the steel wire (2042) is slidably connected to the outer wall of the support column (2043). A buckle (2045) is fixedly connected to the top of the outer wall of the steel wire (2042). The outer wall of the buckle (2045) is slidably connected to the interior of the quick-release frame (201). A first spring (2044) is fixedly connected to the bottom of the outer wall of the buckle (2045). The bottom of the outer wall of the first spring (2044) is fixedly connected to the top of the outer wall of the fixing plate (202).

3. The online diameter measuring caliper for welded pipes according to claim 1, characterized in that: The fixing mechanism (3) includes a bidirectional threaded rod (301), which is rotatably connected to the middle part of the body (1). A knob (302) is fixedly connected to the front end of the outer wall of the bidirectional threaded rod (301). Multiple threaded blocks (303) are installed on the outer wall of the bidirectional threaded rod (301). The interior of each of the multiple threaded blocks (303) is threadedly connected to the outer wall of the bidirectional threaded rod (301). A fixing half-ring (304) is fixedly connected to the bottom of the outer wall of the threaded block (303). A limiting groove (306) is opened at the bottom end of the body (1). The interior of the limiting groove (306) is slidably connected to the outer wall of the fixing half-ring (304). A limiting component (305) is fixedly connected to the right end of the outer wall of the bidirectional threaded rod (301).

4. The welded pipe online diameter measuring caliper according to claim 3, characterized in that: The limiting component (305) includes a ratchet (3051), the inner wall of which is fixedly connected to the right end of the outer wall of the bidirectional threaded rod (301), a pawl (3052) is mounted on the top of the ratchet (3051), a pull rod (3053) is fixedly connected to the top of the outer wall of the pawl (3052), a protective cover (3054) is mounted on the outer side of the ratchet (3051), the outer wall of the pull rod (3053) is slidably connected to the inside of the top of the protective cover (3054), and the front side of the outer wall of the protective cover (3054) is fixedly connected to the rear side of the outer wall of the body (1).

5. The online diameter measuring caliper for welded pipes according to claim 1, characterized in that: Mounting brackets (9) are installed on the front and rear sides of the left end of the body (1). Support rods (4) are installed on the left end of each mounting bracket (9). A second spring (10) is installed on the left side of the body (1). The outer walls of each mounting bracket (9) are fixedly connected to the outer wall of the second spring (10).

6. The online diameter measuring caliper for welded pipes according to claim 1, characterized in that: An instrument panel (5) is installed on the top of the outer wall of the body (1), and the instrument panel (5) adopts a circular design.

7. The online diameter measuring caliper for welded pipes according to claim 3, characterized in that: A fixing column (6) is installed on the bottom outer side of the body (1), and the outer wall of the fixing column (6) is slidably connected to the outer wall of the fixing half ring (304).

8. A welded pipe online diameter measuring caliper according to claim 7, characterized in that: A flange (7) is fixedly connected to the left side of the outer wall of the fixed column (6), and multiple bolts (8) are installed around the flange (7).

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