Feeding length measuring device of threading machine
By introducing a lifting component and a transmission component into the feed length measuring device of the thread cutting machine, the vibration of the cylinder is buffered and the number of roller revolutions is accurately transmitted, solving the problem of encoder damage, realizing high-precision measurement and stable production, and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CHANGBAO PLS STEEL TUBE
- Filing Date
- 2025-02-18
- Publication Date
- 2026-05-08
AI Technical Summary
The existing wire cutting machine feeding length measuring device suffers from high failure rate due to air pressure fluctuations during cylinder lifting and lowering, which easily damages the precision components of the encoder and cables, affecting equipment stability and production costs.
The system employs a combination of lifting and swing components with a transmission component. Vibration is buffered by connecting an electric cylinder to a swing arm, and the number of roller revolutions is transmitted to the encoder via a synchronous belt, achieving high-precision measurement.
It reduces the risk of encoder and cable damage, decreases equipment failure rate, ensures stable production of the threading machine, and improves the accuracy of thread length and product quality.
Smart Images

Figure CN224209223U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire cutting machine feed length measurement technology, specifically a wire cutting machine feed length measurement device. Background Technology
[0002] A threading machine, also known as a threading machine or thread processing machine tool, is a mechanical device used to process various external or internal threads. During threading, it is necessary to ensure that the length of the processed thread meets the design requirements; therefore, the length of the steel pipe used for threading must be checked.
[0003] Currently, most thread-cutting machine feed length measuring devices have a high failure rate during daily production. The main problems are as follows: When the cylinder rises and falls, the large vibrations caused by air pressure fluctuations easily damage the precision components of the encoder and its dedicated cable, increasing the overall failure rate of the length measuring device, leading to equipment downtime and increased production costs. Therefore, there is an urgent need for a new feed length measuring device for thread-cutting machines to solve these problems. Utility Model Content
[0004] In view of the shortcomings of the prior art mentioned in the background, the present invention provides a feeding and length measuring device for a thread cutting machine.
[0005] This utility model overcomes the above technical problems by adopting the following technical solution:
[0006] A wire-cutting machine feed length measuring device includes a base, a lifting component and a swing component are provided on the top of the base, a vertical frame is fixedly connected to the top outer wall of the base, the swing component is rotatably connected to the vertical frame, and a control panel is fixedly connected to one side outer wall of the vertical frame.
[0007] The lifting assembly drives the swing assembly to perform circular motion through its lifting and lowering movement;
[0008] The swing assembly contains a transmission component.
[0009] As a further embodiment of this utility model: the lifting assembly includes a fixed seat fixedly connected to the outer wall of the top of the base, and an electric cylinder is fixedly connected to the top of the fixed seat.
[0010] As a further embodiment of this utility model: the swing assembly includes a connecting seat rotatably connected to the output end of the electric cylinder, a swing arm rod fixedly connected to the top of the connecting seat, a second rotating shaft fixedly connected to one end of the swing arm rod, and both ends of the second rotating shaft rotatably connected to the vertical frame.
[0011] As a further embodiment of this utility model: the transmission assembly includes a first mounting groove and a second mounting groove formed on the swing arm rod. A first rotating shaft is rotatably connected to the inner walls of both sides of the first mounting groove. A roller is fixedly connected to the outer circumference of the first rotating shaft. Transmission grooves are formed on both the upper and lower sides of the swing arm rod. A synchronous belt is located inside the transmission groove. The outer circumference of the steel pipe is in contact with the outer circumference of the roller.
[0012] As a further embodiment of this utility model: a third rotating shaft is rotatably connected inside the second mounting groove, and a transmission wheel is fixedly connected to the outer circumference of the third rotating shaft.
[0013] As a further embodiment of this utility model: a synchronous belt is connected to the outer circumference of the roller, and the roller is connected to the transmission wheel through the synchronous belt.
[0014] As a further improvement of this utility model: an encoder is provided at one end of the third rotating shaft, and the encoder is fixedly connected to the outer wall of one side of the swing arm.
[0015] By adopting the above structure, this utility model has the following advantages compared with the prior art: it effectively reduces the impact of air pressure fluctuations on key length measuring components. At the same time, the connection method between the electric cylinder and the swing arm can better buffer the vibration during the lifting and lowering of the electric cylinder, reducing the risk of damage to the encoder's precision components and special cables due to vibration. This greatly reduces the failure rate of the length measuring device, reduces the number of equipment downtimes, and ensures the continuous and stable production of the threading machine. Meanwhile, the synchronous belt accurately transmits the number of roller rotations to the encoder to achieve high-precision measurement, which can accurately control the length of the steel pipe, provide reliable data support for threading, ensure the accuracy of the processed thread length, improve product quality, and reduce the defect rate caused by unqualified thread length. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall front structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the planar structure during the steel pipe transmission process of this utility model.
[0018] Figure 3 This is a schematic diagram of the overall half-sectional structure of this utility model.
[0019] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.
[0020] In the diagram: 1. Base; 2. Fixed seat; 3. Electric cylinder; 4. Connecting seat; 5. Swing arm; 6. First rotating shaft; 7. Roller; 8. First mounting slot; 9. Synchronous belt; 11. Transmission wheel; 12. Vertical frame; 13. Control panel; 14. Second rotating shaft; 15. Steel pipe; 16. Encoder; 17. Transmission slot; 18. Second mounting slot. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1-4 In this embodiment of the utility model, a wire-cutting machine feeding length measuring device includes a base 1. A lifting component and a swing component are provided on the top of the base 1. A vertical frame 12 is fixedly connected to the top outer wall of the base 1. The swing component is rotatably connected to the vertical frame 12. A control panel 13 is fixedly connected to one side outer wall of the vertical frame 12.
[0023] The lifting assembly drives the swing assembly to perform circular motion through its lifting and lowering movement;
[0024] The swing assembly is equipped with a transmission component, which effectively reduces the impact of air pressure fluctuations on key length measuring components. At the same time, the connection between the electric cylinder 3 and the swing arm 5 can better buffer the vibration of the electric cylinder 3 when it is raised and lowered, thereby reducing the failure rate of the length measuring device, reducing the number of equipment downtimes, and ensuring the continuous and stable production of the thread cutting machine.
[0025] Preferably, the lifting assembly includes a fixed seat 2 fixedly connected to the top outer wall of the base 1, and an electric cylinder 3 fixedly connected to the top of the fixed seat 2.
[0026] Preferably, the swing assembly includes a connecting seat 4 rotatably connected to the output end of the electric cylinder 3. A swing arm 5 is fixedly connected to the top of the connecting seat 4. A second rotating shaft 14 is fixedly connected to one end of the swing arm 5. Both ends of the second rotating shaft 14 are rotatably connected to the vertical frame 12. When the electric cylinder 3 is started, the swing arm 5 can be driven to swing by the lifting of the electric cylinder 3 until the roller 7 at one end of the swing arm 5 contacts the outer wall of the bottom of the steel pipe 15 and the lifting stops, which facilitates the length measurement work when the steel pipe 15 is fed.
[0027] Preferably, the transmission assembly includes a first mounting groove 8 and a second mounting groove 18 formed on the swing arm 5. A first rotating shaft 6 is rotatably connected to the inner walls of both sides of the first mounting groove 8. A roller 7 is fixedly connected to the outer circumference of the first rotating shaft 6. Transmission grooves 17 are formed on both the upper and lower sides of the swing arm 5. The synchronous belt 9 is located inside the transmission groove 17. The outer circumference of the steel pipe 15 is in contact with the outer circumference of the roller 7. A third rotating shaft is rotatably connected inside the second mounting groove 18. A transmission wheel 11 is fixedly connected to the outer circumference of the third rotating shaft. When the steel pipe 15 is fed, it will drive the roller 7 to rotate together, thereby driving the synchronous belt 9 to rotate together. When the synchronous belt 9 is driven, it can drive the transmission wheel 11 and the third rotating shaft to rotate together.
[0028] Preferably, a synchronous belt 9 is connected to the outer circumference of the roller 7. The roller 7 is connected to the transmission wheel 11 via the synchronous belt 9. An encoder 16 is installed at one end of the third rotating shaft. The encoder 16 is fixedly connected to the outer wall of one side of the swing arm 5. The synchronous belt 9 accurately transmits the number of rotations of the roller 7 to the encoder 16 to achieve high-precision measurement. This can accurately control the length of the steel pipe 15, provide reliable data support for thread cutting, ensure the accuracy of the processed thread length, improve product quality, and reduce the defect rate caused by unqualified thread length.
[0029] Working principle: When it is necessary to detect the length of the steel pipe 15 fed into the threading machine, the base 1 can be installed on the auxiliary machine crossbeam and fixed according to the feeding center. Then, the electric cylinder 3 is started. The lifting of the electric cylinder 3 can drive the swing arm 5 to swing until the roller 7 at one end of the swing arm 5 contacts the outer wall of the bottom of the steel pipe 15 and stops lifting. At this time, when the steel pipe 15 is fed, it will drive the roller 7 to rotate together. At this time, the number of rotations of the roller 7 is accurately transmitted to the encoder 16 through the synchronous belt 9 to achieve high-precision measurement. It can accurately control the length of the steel pipe 15, provide reliable data support for threading, ensure the accuracy of the processed thread length, improve product quality, and reduce the defect rate caused by unqualified thread length.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.
Claims
1. A length measuring device for feeding a thread cutting machine, comprising a base (1), characterized in that, The base (1) is provided with a lifting component and a swing component at its top. A vertical frame (12) is fixedly connected to the top outer wall of the base (1). The swing component is rotatably connected to the vertical frame (12). A control panel (13) is fixedly connected to one side outer wall of the vertical frame (12). The lifting assembly drives the swing assembly to perform circular motion through its lifting and lowering movement; The swing assembly contains a transmission component.
2. The wire-cutting machine feed length measuring device according to claim 1, characterized in that, The lifting assembly includes a fixed seat (2) fixedly connected to the top outer wall of the base (1), and an electric cylinder (3) is fixedly connected to the top of the fixed seat (2).
3. The wire-cutting machine feed length measuring device according to claim 2, characterized in that, The swing assembly includes a connecting seat (4) rotatably connected to the output end of the electric cylinder (3), a swing arm rod (5) is fixedly connected to the top of the connecting seat (4), a second rotating shaft (14) is fixedly connected to one end of the swing arm rod (5), and both ends of the second rotating shaft (14) are rotatably connected to the vertical frame (12).
4. The wire-cutting machine feed length measuring device according to claim 3, characterized in that, The transmission assembly includes a first mounting groove (8) and a second mounting groove (18) opened on the swing arm (5). The inner walls on both sides of the first mounting groove (8) are rotatably connected to a first rotating shaft (6). The outer circumferential wall of the first rotating shaft (6) is fixedly connected to a roller (7). The upper and lower sides of the swing arm (5) are provided with transmission grooves (17). The synchronous belt (9) is located inside the transmission groove (17). The outer circumferential wall of the steel pipe (15) is in contact with the outer circumferential wall of the roller (7).
5. The wire-cutting machine feed length measuring device according to claim 4, characterized in that, The second mounting groove (18) is rotatably connected to a third rotating shaft, and a transmission wheel (11) is fixedly connected to the outer circumference of the third rotating shaft.
6. The wire-cutting machine feed length measuring device according to claim 5, characterized in that, The outer circumference of the roller (7) is connected to a synchronous belt (9), and the roller (7) is connected to the transmission wheel (11) via the synchronous belt (9).
7. The wire-cutting machine feed length measuring device according to claim 3, characterized in that, An encoder (16) is provided at one end of the third rotating shaft, and the encoder (16) is fixedly connected to the outer wall of one side of the swing arm (5).