Closed corrugated pipe threading apparatus

Abstract

The utility model provides a closed corrugated pipe threading device which comprises a rolling spiral spring and a quick chuck, the rolling spiral spring is formed by spirally winding a spring wire, and a closed corrugated pipe to be threaded penetrates from the end of the spring wire and is arranged on the periphery of the spring wire in a sleeving mode in the winding direction of the spring wire; and the quick chuck is fixed at the end part of the spring wire and is used for clamping a cable to be penetrated. According to the application, by utilizing the flexure plasticity of the closed corrugated pipe, the closed corrugated pipe is firstly sleeved on the winding spiral spring, then the quick chuck is utilized to clamp the cable, so that the cable is used as a singing of the winding spiral spring, and then the closed corrugated pipe is moved to the cable from the winding spiral spring after passing through the quick chuck, so that the quick pipe penetrating operation of the closed threaded pipe can be realized; the pipe penetrating efficiency is improved, and the pipe penetrating device can be well suitable for batch production.

Description

Technical Field

[0001] The present application belongs to the technical field of cable threading, and in particular relates to a closed-end corrugated tube threader. Background Art

[0002] In the process of automobile manufacturing, a large number of cables are needed. In order to protect the cables, closed corrugated tubes need to be inserted around the cables. However, since small-diameter cables are usually more prone to bending, two people must cooperate to perform shaking operations during the process of threading long-length cables (over 2000mm). The efficiency of threading is low, which is not conducive to mass production.

[0003] Therefore, it is necessary to provide a closed-end corrugated tube threader to solve the problems raised in the above background technology. Summary of the invention

[0004] The present application provides a closed-end corrugated tube threader, which utilizes the flexural plasticity and rapid contraction characteristics of the closed-end corrugated tube, firstly sleeves the closed-end corrugated tube on a winding spiral spring, then uses a quick clamp to clamp the cable, and moves the closed-end corrugated tube from the winding spiral spring through the quick clamp to the cable, thereby realizing a rapid tube threading operation of the closed threaded tube, thereby improving the tube threading efficiency, and can be well adapted to mass production.

[0005] In order to solve the above technical problems, the technical solution of this application is:

[0006] A closed-end corrugated pipe threader, comprising:

[0007] The coiled helical spring is formed by spirally winding a spring wire, and the closed-end corrugated tube to be threaded is inserted from the end of the spring wire and is sleeved on the outer periphery of the spring wire along the winding direction of the spring wire;

[0008] A quick clamp is fixed to the end of the spring wire and is used to clamp the cable to be passed through the pipe.

[0009] Preferably, the quick clamp is arranged at any end of the spring wire, and the end of the spring wire not provided with the quick clamp is fixed to the bottom plate, and the bottom plate provides a fixing support function.

[0010] Preferably, the winding coil spring is formed by two parallel spring wires being spirally wound, and the quick connectors on the two spring wires are arranged side by side in the vertical direction.

[0011] Preferably, the quick chuck comprises a fixing sleeve, a chuck, a wire ring, a guide rod, a spring and a connecting end; the fixing sleeve is a hollow structure with openings at both ends, including a first end and a second end, and the opening area of ​​the first end gradually increases toward the second end; the chuck is arranged at the opening position of the first end and is movably connected to the first end; the chuck comprises a plurality of chuck monomers, and the plurality of chuck monomers are distributed in a circular array along the central axis of the fixing sleeve to form a receiving space with an opening at one end, and a gap is formed between two adjacent chuck monomers; each of the chuck monomers comprises a bottom plate and a side plate, and the bottom plates of the plurality of chuck monomers cooperate to form a A first through hole connected to the receiving space, one end of the side plate is fixed to the bottom plate, and the other end is suspended; the guide rod includes a limit plate and a rod body, the limit plate is arranged in the receiving space and abuts against the bottom plate, the wire ring is fixed to the second end, the wire ring is penetrated by a second through hole, the rod body passes through the first through hole and the second through hole in sequence and is connected to the connecting end; the spring ring is arranged on the periphery of the guide rod and clamped between the bottom plate and the wire ring; one end of the rod body away from the limit plate is connected to one end of the connecting end by a thread, and the other end of the connecting end is welded and fixed to the end of the spring wire.

[0012] The beneficial effects of this application are:

[0013] (1) By utilizing the flexural plasticity of the closed-end corrugated tube, the closed-end corrugated tube is first placed on the winding spiral spring, and then the cable is clamped by the quick clamp, so that the cable serves as the winding spiral spring. Then, the closed-end corrugated tube is moved from the winding spiral spring to the cable after the quick clamp, so that the closed-end threaded tube can be quickly threaded, which improves the threading efficiency and is well suited for mass production.

[0014] (2) The closed-end bellows has the characteristic of rapid contraction, and a large number of contracted closed-end threaded tubes can be sleeved on the winding spiral spring; the winding spiral spring is spiral-shaped, and the spiral bending shape can further increase the length of the closed-end threaded tube that can be sleeved;

[0015] (3) The quick-release clamp is easy to use. After the cable is threaded through the pipe, just loosen the quick-release clamp to release the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram showing the structure of a closed-end corrugated pipe threader provided by the present application;

[0017] Figure 2 express Figure 1 The structural schematic diagram of the quick chuck shown;

[0018] Figure 3 express Figure 2 Schematic diagram of the structure of the chuck shown. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] Please refer to Figure 1-Figure 3 The present application provides a closed-end corrugated tube threader 100 , comprising a winding coil spring 10 , a quick clamp 20 and a base plate 30 .

[0021] The coiled coil spring 10 is formed by spirally winding a spring wire, and the closed bellows to be threaded is inserted from the end of the spring wire and is sleeved on the periphery of the spring wire along the winding direction of the spring wire. The closed bellows has good flexural plasticity and can be easily sleeved on the spring wire. The coiled coil spring is spiral, and the spiral bending shape can accommodate a relatively long closed bellows; at the same time, the closed threaded tube can also have good rapid contraction characteristics. After squeezing and shrinking it, it can be inserted, which can further increase the length that can be inserted. The combination of the two methods can make the coiled coil spring 10 accommodate a relatively long closed bellows at a time, meeting the long-term tube threading needs.

[0022] The quick clamp 20 is fixed to the end of the spring wire and is used to clamp the cable 300 to be passed through the pipe. Specifically, the quick clamp 20 is set at any end of the spring wire, and the end of the spring wire without the quick clamp 20 is fixed to the bottom plate 30, and the bottom plate 30 provides a fixed support function. When in use, the bottom plate 30 is placed on the ground or a work platform so that the winding coil spring 10 is placed in a vertical direction as a whole.

[0023] After the quick clamp 20 clamps the cable 300, the cable 300 constitutes a spatial extension of the spring wire. At this time, it is only necessary to move the closed corrugated tube from the spring wire to the cable 300, which is easy to operate. After the tube threading is completed, the closed corrugated tube is cut off to prepare for the tube threading of the next cable.

[0024] It can be understood that in order to allow the closed bellows to pass through the quick clamp 20 in sequence, the outer diameter of the quick clamp 20 needs to be no larger than the inner diameter of the closed bellows.

[0025] Furthermore, the winding coil spring 10 is formed by two parallel spring wires spirally wound, and the quick connectors 20 on the two spring wires are arranged side by side in the vertical direction. With such an arrangement, the gaps between different layers of the spring wires can be reasonably utilized. The double-wire parallel method can complete the pipe threading operations of two cables at the same time, so that the pipe threading efficiency is further improved.

[0026] Specifically, the quick clamp 20 includes a fixing sleeve 21 , a clamp 22 , a wire ring 23 , a guide rod 24 , a spring 25 and a connecting terminal 26 .

[0027] The fixing sleeve 21 is a hollow structure with two ends open, including a first end 211 and a second end 212. The clamp 22 is disposed at the opening position of the first end 211 and is movably connected to the first end 211. The wire loop 23 is disposed at the opening position of the second end 212 and is fixed to the second end 212. The opening area of ​​the first end 211 gradually increases toward the second end 212.

[0028] The chuck 22 includes a plurality of chuck monomers 221, which are distributed in a circular array along the central axis of the fixing sleeve 21 to form a receiving space with one end open, and a gap 222 is formed between two adjacent chuck monomers 221; each chuck monomer 221 includes a bottom plate 2211 and a side plate 2212, and the bottom plates 2211 of the plurality of chuck monomers 221 cooperate to form a first through hole 2213 connected to the receiving space, and one end of the side plate 2212 is fixed to the bottom plate 2211, and the other end is suspended, so that the end of the side plate 2212 away from the bottom plate 2211 has a relatively large High degree of freedom. Since the opening area of ​​the first end 211 gradually increases toward the second end 212, when the fixing sleeve 21 moves from the second end 212 toward the first end 211, due to the increase in the opening area of ​​the first end 211, the restraining force on the chuck 22 is reduced, and the opening end of the chuck 22 is gradually opened for placing the cable 300; when the fixing sleeve 21 moves from the first end 211 toward the first end 212, due to the decrease in the opening area of ​​the first end 211, the restraining force on the chuck 22 is increased, and the opening end of the chuck 22 is gradually closed for clamping the cable 300.

[0029] The wire loop 23 is fixed to the second end 212 .

[0030] The guide rod 24 includes a limit plate 241 and a rod body 242. The limit plate 241 is arranged in the receiving space and abuts the bottom plate 2211. The wire ring 23 is penetrated by a second through hole 230. The rod body 242 passes through the first through hole 2213 and the second through hole 230 in sequence to be connected to the connecting terminal 26.

[0031] Specifically, one end of the rod body 242 away from the limiting plate is connected to one end of the connecting terminal 26 through a thread, and the other end of the connecting terminal 26 is welded and fixed to the end of the spring wire.

[0032] The spring 25 is disposed around the periphery of the rod body 242 and is sandwiched between the bottom plate 221 and the wire ring 23 to assist the fixing sleeve 21 in resetting.

[0033] The use process of a closed-end corrugated tube threader 100 provided in the present application is as follows:

[0034] First, insert the closed-end corrugated tube from the end of the spring wire. After all the spring wires are inserted, expose the quick connector 20. Then push the fixing sleeve 21 to the left to open the clamp 22. Insert the cable 300 from the open end of the clamp 22 until it abuts against the bottom plate 221. Then release the fixing sleeve 21. The fixing sleeve 21 is reset under the elastic action of the spring 25 to clamp the cable 300. Finally, pull the closed-end corrugated tube to the right to cover the outer periphery of the cable 300. After all the cables 300 are covered with the closed-end corrugated tube, cut the closed-end corrugated tube to prepare for the next pipe insertion.

[0035] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A closed-end corrugated pipe threader, characterized in that: include: The coiled helical spring is formed by spirally winding a spring wire, and the closed-end corrugated tube to be threaded is inserted from the end of the spring wire and is sleeved on the outer periphery of the spring wire along the winding direction of the spring wire; A quick clamp is fixed to the end of the spring wire and is used to clamp the cable to be passed through the pipe.

2. The closed-end corrugated pipe threader according to claim 1, characterized in that: The quick clamp is arranged at any end of the spring wire, and the end of the spring wire not provided with the quick clamp is fixed to the bottom plate, and the bottom plate provides a fixing support function.

3. The closed-end corrugated pipe threader according to claim 2, characterized in that: The winding spiral spring is formed by two parallel spring wires being spirally wound, and the quick connectors on the two spring wires are arranged side by side in the vertical direction.

4. The closed-end corrugated pipe threader according to claim 1, characterized in that: The quick chuck comprises a fixing sleeve, a chuck, a wire ring, a guide rod, a spring and a connecting end. The fixing sleeve is a hollow structure with openings at both ends, including a first end and a second end, and the opening area of ​​the first end gradually increases toward the second end; the chuck is arranged at the opening position of the first end and is movably connected to the first end; the chuck comprises a plurality of chuck monomers, and the plurality of chuck monomers are distributed in a circular array along the central axis of the fixing sleeve to form a receiving space with an opening at one end, and a gap is formed between two adjacent chuck monomers; each of the chuck monomers comprises a bottom plate and a side plate, and the bottom plates of the plurality of chuck monomers cooperate to form a receiving space with the fixing sleeve. The first through hole connected to the receiving space, one end of the side plate is fixed to the bottom plate, and the other end is suspended; the guide rod includes a limit plate and a rod body, the limit plate is arranged in the receiving space and abuts against the bottom plate, the wire ring is fixed to the second end, the wire ring is penetrated by a second through hole, the rod body passes through the first through hole and the second through hole in sequence and is connected to the connecting end; the spring ring is arranged on the periphery of the guide rod and clamped between the bottom plate and the wire ring; one end of the rod body away from the limit plate is connected to one end of the connecting end by a thread, and the other end of the connecting end is welded and fixed to the end of the spring wire.

Images