A highly flexible and resistant cable for industrial robots
By designing a detachable filling bag and valve system, the replacement and reuse of industrial robot cable sleeves is achieved, which solves the problem of resource waste caused by aging of the outer layer of the cable and improves the stability of cable connections.
Patent Information
- Application Number
- CN202210569340.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-05-24
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2042-05-24
AI Technical Summary
The outer layer of the cable with high-flexible drag chain cable for industrial robots is prone to damage due to the high use strength and fast aging speed, which causes the entire cable to be replaced and waste of resources.
A high-flexible curve-resistant cable including a cable sleeve and a core is designed. The cable sleeve is equipped with a mounting hole. The outer peripheral side of the core can be detached and connected to the filling bag. The gas is extracted through the valve to shrink the filling bag to remove the core and replace it. When the cable sleeve is filled with gas through the valve nozzle, the filling bag expands and fixes it to the installation hole wall, thereby achieving the connection between the core and the cable sleeve and reducing resource waste.
The cable sleeve is removable and replaced, and the core is reused to reduce resource waste. It also adapts to cable bending through the deformation space of the expansion part and the transmission part, thereby improving the fixing strength of the connection.
Smart Images
Figure CN114914020B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of power equipment, and in particular to a highly flexible, flex-resistant cable for an industrial robot. Background Art
[0002] Robotics is a field with a wide range of applications and a fast development speed. Industrial robots, to put it simply, are robots used to help manufacturing in the industrial industry. Industrial robots use cables to transmit energy and information during use. However, since the mechanical arm of industrial robots swings at a high frequency when in use, there are certain requirements for the use of cables.
[0003] At present, a Chinese utility model with announcement number CN202905250U discloses a high-flexibility drag chain cable for industrial robots, including a cable inner core and a cable outer layer wrapped around the cable inner core. The cable inner core is composed of a conductive core and an insulating layer from the inside to the outside, and the cable outer layer is composed of a wrapping tape, an inner lining layer, a shielding layer and a sheath from the inside to the outside. A tensile fiber filler is provided between the cable inner core and the cable outer layer.
[0004] In the process of implementing this application, the inventors found that there are at least the following problems in this technology: the outer layer of the cable is easily damaged due to its high intensity of use and rapid aging, and the entire cable needs to be replaced during maintenance, which is a waste of resources. Summary of the invention
[0005] In order to reduce resource waste, the present application provides a highly flexible, flex-resistant cable for an industrial robot.
[0006] The present application provides a highly flexible bending-resistant cable for an industrial robot, which adopts the following technical solution:
[0007] A highly flexible and bend-resistant cable for an industrial robot comprises a cable sheath and a cable core, wherein a mounting hole is provided in the cable sheath, the diameter of the mounting hole being larger than the diameter of the core body, the core body being slidably inserted into the mounting hole, a filling bag being detachably connected to the outer peripheral side of the core body, one side of the filling bag being provided with an air valve nozzle for flushing and deflation when the filling bag is located outside the cable sheath and in the mounting hole, the filling bag being provided with a sealing cap for sealing the air valve nozzle, and the core body being provided with a detachable fixing part for fixing the filling bag.
[0008] By adopting the above technical solution, when the cable sheath is damaged, the cable is first disassembled from the industrial robot, and then the plugging cap is removed and the gas in the filling bag is extracted through the valve nozzle, so that the filling bag shrinks and the core body is easily taken out. Then, when replacing, the core body and the filling bag are slid through the installation hole, and the gas is filled through the valve nozzle, so that the filling bag expands and abuts against the wall of the installation hole, so as to realize the connection between the core body and the cable sheath, and complete the replacement of the cable sheath, which is conducive to the reuse of the core body and reduces the waste of resources.
[0009] Optionally, the fixing member includes a fixing rope, and the fixing rope binds and fixes the side of the filling bag away from the valve mouth to the outer peripheral side of the core body.
[0010] By adopting the above technical solution, a fixed connection between the filling bag and the core body is achieved through the fixing rope during use.
[0011] Optionally, the filling bag includes an expansion part and a transmission part, the transmission part is sleeved on the outer peripheral side of the core body and has a transmission space inside, the expansion part is sleeved and fixed on the outer peripheral side of the transmission part and has an expansion space inside, the transmission part has a connecting hole for connecting the expansion space and the transmission space, there are multiple expansion parts and they are evenly spaced, and after the filling bag is inflated, the expansion part expands until the outer wall abuts against the hole wall around the mounting hole.
[0012] By adopting the above technical solution, the expansion parts are arranged at intervals so that there is a certain gap between adjacent expansion parts, which provides deformation space for the expansion parts and the transmission parts when the cable is bent.
[0013] Optionally, a driving rope is connected to the inner wall of the expansion part and at a position away from the transmission part. The driving rope slides through the connecting hole and extends into the transmission space. When the expansion part expands, the driving rope slides into the expansion space. The transmission part is provided with a locking assembly corresponding to the driving rope one by one. When the driving rope slides into the expansion space, the locking assembly locks the transmission part to the core body.
[0014] By adopting the above technical solution, when the expansion part expands, the driving rope slides into the expansion space. At this time, the locking component locks the transmission part and the core body, further improving the connection and fixing strength between the filling bag and the core body.
[0015] Optionally, the locking assembly includes two symmetrically arranged locking plates, each of which is an arc-shaped plate structure and is hingedly connected at one end, and the other ends of the two locking plates are respectively connected to connecting rings, and the driving rope passes through one of the connecting rings and is fixed to the other connecting ring.
[0016] By adopting the above technical solution, when the driving rope slides into the expansion space, the driving rope pulls the connecting ring, so that the two locking plates approach each other, and cooperate to clamp the transmission part and the core body.
[0017] Optionally, the arc-shaped concave sides of the locking plate are respectively connected to the inner wall of the transmission part on a side away from the expansion part.
[0018] By adopting the above technical solution, the position of the locking plate is restricted, thereby reducing the possibility of position deviation of the locking plate.
[0019] Optionally, a receiving groove corresponding to the expansion part is opened on the hole wall of the mounting hole, and the expansion part is inserted into the receiving groove after expansion, and the outer peripheral side of the expansion part abuts against the peripheral groove wall of the receiving groove.
[0020] By adopting the above technical solution, the expansion part is inserted into the accommodating groove, which limits the position of the filling bag and reduces the possibility of the core body sliding along the length direction of the cable sheath.
[0021] Optionally, the sealing cap is threadedly connected to the valve stem.
[0022] By adopting the above technical solution, the sealing cap is threadedly connected to the valve nozzle. On the one hand, the sealing cap is fixed so that the sealing cap protects the valve nozzle. On the other hand, the sealing cap and the valve nozzle can be sealed to a certain extent through the threaded connection to reduce the possibility of gas leakage.
[0023] In summary, the present application includes at least one of the following beneficial effects:
[0024] 1. When the cable cover is damaged, the cable can be disassembled and removed, and then the gas in the filling bag can be released, and then the core can be pulled out to replace the cable cover. After the replacement is completed, the gas can be filled through the valve to make the filling bag expand to abut against the wall of the installation hole, so as to realize the connection between the core and the cable cover, which is conducive to the reuse of the core and reduces the waste of resources;
[0025] 2. When the expansion part expands, the driving rope slides into the expansion space, driving the two locking plates to approach each other, locking the core body, and improving the connection and fixing strength between the filling bag and the core body. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is the external structural intention of the embodiment of the present application;
[0027] Figure 2 is a cross-sectional schematic diagram of an embodiment of the present application when the locking plate locks the transmission part;
[0028] Figure 3 It is a schematic diagram of the internal cross-section of an embodiment of the present application.
[0029] Figure numerals: 1. cable sleeve; 11. mounting hole; 12. receiving groove; 2. core body; 3. filling bag; 31. expansion part; 311. expansion space; 312. driving rope; 32. transmission part; 321. transmission space; 33. connecting hole; 34. locking plate; 341. connecting ring; 4. valve mouth; 41. sealing cap; 5. fixing rope. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-3 This application is described in further detail.
[0031] The present application discloses a highly flexible and resistant cable for an industrial robot. Figure 1 The highly flexible and resistant cable for industrial robots includes a cable sheath 1 and a cable core 2. The lengths of the cable sheath 1 and the core 2 are determined according to the use requirements of the industrial robot. A mounting hole 11 extending along the length direction is provided in the cable sheath 1, and the core 2 is slidably inserted into the mounting hole 11. The diameter of the mounting hole 11 is larger than the diameter of the core 2, so that the core 2 can be easily pulled out and replaced when the cable sheath 1 is damaged. When replacing, the core 2 can also slide through the mounting hole 11 more conveniently.
[0032] See also Figure 2 The outer peripheral side of the core 2 is provided with a filling bag 3, and the filling bag 3 includes a transmission part 32 and an expansion part 31. The expansion part 31 is slidably sleeved on the outer peripheral side of the core 2, and a transmission space 321 surrounding the core 2 is opened inside the transmission part 32. The expansion part 31 is sleeved on the outer peripheral side of the transmission part 32 and is fixedly connected to the transmission part 32. An expansion space 311 surrounding the core 2 is opened inside the expansion part 31. The transmission part 32 is provided with a connecting hole 33. The expansion space 311 and the transmission space 321 are connected through the connecting hole 33. There are multiple expansion parts 31 and they are evenly spaced along the extension direction of the transmission part 32.
[0033] See also Figure 1 and Figure 2 The core body 2 is provided with a fixing part for connecting and fixing the filling bag 3 to the core body 2. The fixing part includes a fixing rope 5. A plurality of mounting sleeves are fixed at even intervals along the circumferential direction on the outer peripheral side of the transmission part 32 and near the end. The fixing rope 5 is slidably inserted into the mounting sleeve to limit the position of the fixing rope 5. When in use, the fixing rope 5 binds and fixes the transmission part 32 to the core body 2, so that the filling bag 3 and the core body 2 are connected to each other.
[0034] See also Figure 2 and Figure 3The end of the transmission part 32 away from the fixing rope 5 is fixedly connected with a valve 4, and the valve 4 is connected to the transmission space 321. After the core body 2 is installed, the valve 4 is located outside the cable sleeve 1, which is convenient for use. When in use, the transmission space 321 is filled with inert gas through the valve 4. As the filling progresses, the inert gas gradually enters the expansion space 311. The expansion part 31 and the transmission part 32 can be made of rubber material with a certain elastic deformation ability. After the inert gas is poured in, the transmission part 32 and the expansion part 31 expand respectively until the outer wall of the expansion part 31 away from the core body 2 abuts against the hole wall of the mounting hole 11, thereby fixing the position of the core body 2.
[0035] See also Figure 2 and Figure 3 The filling bag 3 is provided with a plugging cap 41, which is threadedly connected to the valve 4. The valve 4 is protected by the plugging cap 41 during use, and the plugging cap 41 is threadedly connected to the valve 4, which can reduce the possibility of inert gas leakage to a certain extent.
[0036] See also Figure 2 and Figure 3 , a receiving groove 12 is provided on the peripheral hole wall of the mounting hole 11, and there are multiple receiving grooves 12 and they correspond to the expansion part 31 one by one. During installation, the fixing rope 5 is used as a reference. When the core 2 passes through the mounting hole 11 to the outer peripheral side of the fixing rope 5 and is close to the valve 4 and is tangent to one side end face of the cable sleeve 1, the expansion part 31 and the receiving groove 12 are aligned with each other. At this time, the inert gas is filled, and the expansion part 31 expands and is stuck in the receiving groove 12, so that the peripheral outer wall of the expansion part 31 and the peripheral groove wall of the receiving groove 12 abut against each other, reducing the possibility of the core 2 sliding in the mounting hole 11 after the inert gas is filled. When the core 2 needs to be extracted, the inert gas in the transmission space 321 and the expansion space 311 is extracted, so that the expansion part 31 and the transmission part 32 shrink and fit on the outer peripheral side of the core 2. At this time, the core 2 and the filling bag 3 can slide in the mounting hole 11, and the core 2 is taken out.
[0037] See also Figure 2 The expansion part 31 is provided with a driving rope 312, which is slidably inserted into the communication hole 33, and the diameter of the driving rope 312 is smaller than the aperture of the communication hole 33. One end of the driving rope 312 is fixed to the inner wall of the expansion part 31 away from the transmission part 32, and the other end extends into the transmission space 321. When the expansion part 31 expands, the driving rope 312 slides into the expansion space 311.
[0038] See also Figure 2 and Figure 3The transmission part 32 is provided with a locking assembly, which corresponds to the driving rope 312 one by one. When the driving rope 312 slides into the expansion space 311, the driving rope 312 drives the locking assembly to lock the transmission part 32 to the outer peripheral side of the core 2. The locking assembly includes a locking plate 34, and there are two locking plates 34 and they are symmetrically arranged. The locking plate 34 is an arc-shaped plate structure, one end of the two locking plates 34 is hingedly connected, and the other end is fixedly connected with a connecting ring 341, and the arc-shaped inner concave surface of the locking plate 34 is fixed to the inner wall of the side of the transmission part 32 away from the expansion part 31. The end of the driving rope 312 away from the expansion part 31 passes through one of the connecting rings 341 and is fixed to the other connecting ring 341. When the side of the expansion part 31 away from the transmission part 32 expands to abut against the groove wall of the accommodating groove 12, the driving rope 312 pulls the two locking plates 34 close to each other to lock the core 2 and the transmission part 32, further improving the connection and fixing strength between the filling bag 3 and the core 2.
[0039] The implementation principle of a highly flexible bending-resistant cable for an industrial robot in the embodiment of the present application is as follows:
[0040] When the cable sleeve 1 is damaged, first remove the plugging cap 41 and then open the valve 4, and extract the inert gas in the expansion space 311 and the transmission space 321, so that the expansion part 31 and the transmission part 32 shrink and fit on the outer peripheral side of the core 2, then extract the core 2, and replace the cable sleeve 1. When replacing, slide the core 2 through the mounting hole 11 of the new cable sleeve 1 until the outer peripheral side of the fixing rope 5 and the position close to the valve 4 are tangent to the end of the cable sleeve 1, and then fill the inert gas through the valve 4, so that the transmission part 32 and the expansion part 31 expand, and the expansion part 31 expands and snaps into the receiving groove 12, so as to realize the connection and fixation between the core 2 and the cable sleeve 1, and complete the replacement of the cable sleeve 1, which is conducive to the reuse of the core 2 and reduce the waste of resources. At the same time, when the expansion part 31 expands, the driving rope 312 drives the locking plate 34 to cooperate with each other to lock the core 2, thereby improving the connection stability between the filling bag 3 and the core 2.
[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A highly flexible and resistant cable for industrial robots, characterized in that: The invention comprises a cable sleeve (1) and a cable core (2), wherein a mounting hole (11) is provided in the cable sleeve (1), the diameter of the mounting hole (11) is larger than the diameter of the core (2), the core (2) is slidably inserted into the mounting hole (11), a filling bag (3) is detachably connected to the outer peripheral side of the core (2), a valve (4) for flushing and deflation when the filling bag (3) is located outside the cable sleeve (1) and inside the mounting hole (11) is provided on one side of the filling bag (3), the filling bag (3) is provided with a sealing cap (41) for sealing the valve (4), and the core (2) is provided with a detachable fixing part for fixing the filling bag (3); The filling bag (3) comprises an expansion part (31) and a transmission part (32); the transmission part (32) is sleeved on the outer peripheral side of the core body (2) and has a transmission space (321) therein; the expansion part (31) is sleeved and fixed on the outer peripheral side of the transmission part (32) and has an expansion space (311) therein; the transmission part (32) has a connecting hole (33) for connecting the expansion space (311) and the transmission space (321); the expansion part (31) is provided in plurality and is evenly spaced; after the filling bag (3) is inflated, the expansion part (31) expands until the outer wall abuts against the hole wall around the mounting hole (11); A driving rope (312) is connected to an inner wall of the expansion portion (31) at a position away from the transmission portion (32); the driving rope (312) slides through the connecting hole (33) and extends into the transmission space (321); when the expansion portion (31) expands, the driving rope (312) slides into the expansion space (311); the transmission portion (32) is provided with a locking assembly corresponding to the driving rope (312); when the driving rope (312) slides into the expansion space (311), the locking assembly locks the transmission portion (32) to the core body (2).
2. The highly flexible and resistant cable for industrial robots according to claim 1, characterized in that: The fixing member comprises a fixing rope (5), and the fixing rope (5) binds and fixes the side of the filling bag (3) away from the valve (4) to the outer peripheral side of the core body (2).
3. The highly flexible and resistant cable for industrial robots according to claim 1, characterized in that: The locking assembly comprises two symmetrically arranged locking plates (34), the locking plates (34) being arc-shaped plate structures and hingedly connected at one end, the other ends of the two locking plates (34) being respectively connected to connecting rings (341), the driving rope (312) passing through one of the connecting rings (341) and being fixed to the other connecting ring (341).
4. The highly flexible and resistant cable for industrial robots according to claim 3, characterized in that: The arc-shaped concave sides of the locking plates (34) are respectively connected to the inner wall of the transmission portion (32) on a side away from the expansion portion (31).
5. The highly flexible and resistant cable for industrial robots according to claim 1, characterized in that: The wall of the mounting hole (11) is provided with a receiving groove (12) corresponding to the expansion portion (31) one by one, and the expansion portion (31) is inserted into the receiving groove (12) after expansion, and the outer peripheral side of the expansion portion (31) abuts against the peripheral groove wall of the receiving groove (12).
6. The highly flexible and resistant cable for industrial robots according to claim 1, characterized in that: The blocking cap (41) is threadedly connected to the valve stem (4).