Sunroof cable assembly device and assembly method
By using gears and cable threads for transmission and roller limiting design, the problems of friction and bending of the wire rope during insertion are solved, enabling smooth cable movement and efficient assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN ZHENJIA YUHENG ROBOT TECH CO LTD
- Filing Date
- 2024-02-02
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, when steel wire ropes are inserted into the sunroof slots of automobiles, frictional contact can hinder movement, causing bending and affecting production efficiency.
The transmission uses a gear and cable thread meshing, combined with roller and limit component design. The gear tooth groove meshes with the cable thread as the driving force, avoiding friction drive and ensuring smooth cable movement. The second movable part drives the gear to move upward and bend the cable to adapt to the slot shape.
This effectively avoids the problems of friction and bending of the cable in the slot, improves production efficiency, and ensures that the cable smoothly inserts into the slot.
Smart Images

Figure CN117862857B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive sunroof technology, and in particular to a sunroof cable assembly device and assembly method. Background Technology
[0002] A vehicle's panoramic sunroof needs to be equipped with a sunshade to block sunlight. Existing sunshades use a cable mechanism to move, fold, and unfold. The main structure of the cable mechanism includes steel strands, anchors, and cable ends, such as... Figure 1 As shown, the surface of the cable is usually threaded. During the cable production process, the steel strands need to be inserted into the slots in the car sunroof. Currently, the insertion of the cable in the manufacturing process requires manual insertion, which limits the number of products produced and affects production efficiency.
[0003] Chinese patent CN2174941017 discloses an automatic cable threading device used on an automotive sunroof production line, including a support plate and a conveyor belt. Multiple conical sleeves are fixedly connected to the front side of the bottom of the support frame, and a pipe is fixedly connected to the rear end. This allows the steel wire rope to smoothly enter the conical sleeves under the rotation of the conveyor belt, and then further into the pipe. In this solution, the friction between the conveyor belt and the steel wire rope drives the rope to move and thread into the pipe. However, the slots inside the sunroof are narrow and have bends, and the steel wire rope itself has a certain degree of flexibility. This can cause significant frictional contact between the steel wire rope and the inner wall of the slot when it enters the slot, potentially hindering further threading and causing the portion of the steel wire rope outside the slot to bend under the thrust, making it even more difficult to thread into the slot. Summary of the Invention
[0004] In view of this, the present invention proposes a sunroof cable assembly device and assembly method to solve the problem that when the wire rope is inserted into the slot and there is a large frictional contact between it and the inner wall of the slot, it may hinder the wire rope from continuing to insert into the slot, and cause the part of the wire rope outside the slot to bend under the action of thrust, making it more difficult to insert into the slot.
[0005] The technical solution of the present invention is implemented as follows: The present invention provides a sunroof cable assembly device, including a device body with a channel therein through which the cable passes; a gear, which is disposed on the device body and rotates relative to the device body axis; wherein, the cable has a threaded outer circumferential surface around the cable axis; the outer circumferential edge of the gear enters the channel, the outer circumferential surface of the gear contacts the outer circumferential surface of the cable, the outer circumferential surface of the gear has a tooth groove that meshes with the thread, and the gear axis rotates and drives the cable to move along the channel.
[0006] Based on the above technical solutions, preferably, it also includes a roller, which is set on the main body of the device and rotates relative to the axis of the main body of the device; wherein, the roller and the gear are symmetrically arranged on both sides of the cable axial direction, the outer peripheral contour edge of the roller enters the channel, the outer peripheral surface of the roller contacts the outer peripheral surface of the cable and presses the cable onto the gear, and the thread and the tooth groove mesh.
[0007] More preferably, it also includes a first movable part, which is disposed on the main body of the device and has a roller thereon; wherein, the first movable part moves relative to the main body of the device and drives the roller to contact or disengage from the cable.
[0008] More preferably, it also includes a drive mechanism, which is disposed on the main body of the device and has a drive end; a connecting rod, one end of which is hinged to the drive end of the drive mechanism and the other end of which is provided with a first movable part; wherein, the middle part of the connecting rod is hinged to the main body of the device; the drive mechanism drives the drive end to move telescopically, so that the end of the connecting rod with the first movable part rotates around the hinge connection between the connecting rod and the main body of the device, and drives the roller to contact or disengage from the cable.
[0009] More preferably, it also includes two first limiting members, which are arranged along the cable axis on the main body of the device and located on both sides of the gear; and two second limiting members, which are arranged along the cable axis on the first movable part and located on both sides of the roller; wherein each first limiting member and each second limiting member are arranged in a one-to-one correspondence, and the first limiting member and the second limiting member are respectively provided with grooves, and the grooves of the first limiting member and the second limiting member form a channel.
[0010] More preferably, the gear and roller are arranged on both sides of the cable axis in a vertical direction along the ground, with the roller located directly above the gear.
[0011] In a more preferred embodiment, the roller has a groove on its surface, and the roller presses the cable onto the gear and makes the outer circumference of the cable contact the inner wall of the groove.
[0012] More preferably, it also includes a second movable part, which is disposed on the main body of the device and has a gear thereon; wherein, one end of the cable passes through the channel and the other end hangs freely; the second movable part drives the gear to move upward relative to the main body of the device in a vertical direction along the ground, so that the edge of the gear in contact with the cable is misaligned with the central axis of the channel, and the portion of the cable between the two pairs of first limiting members and second limiting members is bent into an arc shape.
[0013] Based on the above technical solutions, preferably, the ratio of the width of the thread teeth to the width of the grooves on the thread is 1:0.9 to 1:1.
[0014] On the other hand, the present invention also provides an assembly method for a sunroof cable assembly device. Using the aforementioned sunroof cable assembly device, the method includes the following steps: Step 1, activating the drive mechanism to retract and raise the connecting rod, causing the first movable part to drive the roller and the second limiting part to move away from the gear and the first limiting part; Step 2, placing the cable in the grooves of the two first limiting parts, and ensuring the outer circumferential surface of the cable is tightly against the outer circumferential surface of the gear, activating the drive mechanism to extend and lower the connecting rod, causing the first movable part to drive the roller and the second limiting part to move towards the gear and the first limiting part, the second limiting part and the first limiting part forming a channel and encircling the cable, so that one end of the cable passes through the channel and the other end hangs freely; Step 3, driving the second movable part to move upwards relative to the device body in a vertical direction along the ground and approach the roller, causing the roller to press the cable onto the gear and engage the threads with the tooth grooves, driving the gear shaft to rotate, and the gear driving the cable to move along the channel.
[0015] The sunroof cable assembly device and assembly method of the present invention have the following advantages over the prior art:
[0016] (1) The present invention drives the cable to move along the channel by rotating the gear. The transmission force generated by the meshing of the gear teeth and the cable threads is used as the driving source to drive the cable to move, rather than using friction as the driving source. The driving source for inserting the cable can be set as close as possible to the sunroof slot. This not only avoids the cable slipping on the surface of the conveyor belt and affecting the cable movement, but also avoids the problem that when the cable inserts into the slot and has a large frictional contact with the inner wall of the slot, it may hinder the cable from continuing to insert into the slot, causing the part of the cable outside the slot to bend under the action of thrust.
[0017] (2) The present invention presses the cable onto the gear by rollers, which prevents the cable from coming off the gear during the movement and keeps the cable straight, thus making the movement of the cable smoother.
[0018] (3) The present invention utilizes the transmission force generated by the meshing of the gear tooth groove and the cable thread as the driving source to drive the cable to move. In order to keep the gear and the cable in good fit at all times, the helical angle of the tooth groove is the same as the helical angle of the thread, and the tooth pitch of the tooth groove needs to be an integer multiple of the thread lead, so that the tooth groove and the thread can mesh every time the gear rotates by one tooth groove angle.
[0019] (4) The present invention provides a second movable part to drive the gear to move upward so that the cable bends into an arc shape, so as to cooperate with the free end of the cable to fall down so that the part of the cable located in the channel has a tendency to bend. This avoids the problem that the part of the cable located in the channel may be bent due to the force caused by the free end of the cable falling down and disengaging from the gear. It also avoids the problem that the roller presses down too much, causing the cable to be clamped by the roller and the gear, resulting in a large friction force when the cable moves. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional schematic diagram of the cable of the present invention;
[0022] Figure 2 This is a perspective view of the sunroof cable device of the present invention;
[0023] Figure 3 This is a perspective view of the sunroof cable device of the present invention;
[0024] Figure 4 This is a perspective view of the sunroof cable device of the present invention;
[0025] Figure 5 This is a front view of the sunroof cable device of the present invention;
[0026] Figure 6 This is a side view of the sunroof cable device of the present invention;
[0027] Figure 7 This is a schematic diagram illustrating the working principle of the sunroof cable device of the present invention.
[0028] In the figure: 1. Cable; 101. Thread; 2. Main body of the device; 201. Channel; 3. Gear; 301. Tooth groove; 4. Roller; 401. Wheel groove; 5. First movable part; 6. Drive mechanism; 7. Connecting rod; 8. First limiting member; 9. Second limiting member; 10. Second movable part. Detailed Implementation
[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0030] like Figure 4 As shown, combined with Figure 1 , Figure 2 and Figure 3 The present invention provides a sunroof cable assembly device, comprising a device body 2 and a gear 3.
[0031] The sunroof cable assembly device of this invention is a part of the overall sunroof cable assembly equipment. Its main function is to provide driving force for the cable 1 to pass through the sunroof slot. The sunroof is usually fixed on a loading fixture with the slot inlet facing horizontally. The device body 2 is installed at the slot inlet. The device body 2 can be mounted on a multi-axis slide rail mechanism and can move back and forth, left and right, and up and down to adjust the relative position of the device body 2 and the slot inlet. The device body 2 has a channel 201 inside. By adjusting the position of the device body 2 so that the channel 201 is aligned with the slot inlet, the cable 1 passes through the channel 201 during assembly.
[0032] The main body of cable 1 is a steel wire rope, and a thread 101 is axially opened around the outer circumference of cable 1.
[0033] Gear 3 is mounted on the main body 2 of the device and rotates relative to the axis of the main body 2. The outer peripheral edge of gear 3 enters the channel 201, and the outer peripheral surface of gear 3 contacts the outer peripheral surface of cable 1. Gear 3 has a toothed groove 301 on its outer peripheral surface, and the toothed groove 301 meshes with the thread 101. Gear 3 rotates and drives cable 1 to move along channel 201.
[0034] The principle of this application is that the gear 3 and the cable 1 are meshed by the engagement of the tooth groove 301 and the thread 101. When the gear 3 rotates by an angle of one tooth groove 301, the previous tooth groove 301 pushes the thread 101 to move, and the cable 1 moves forward accordingly, causing the next section of the thread 101 to mesh with the next tooth groove 301. This process is repeated to make the cable 1 move forward continuously. Since the groove between adjacent threads on the thread 101 is a slanted groove, the tooth groove 301 on the gear 3 should also be a slanted groove in order to ensure that the tooth groove 301 and the thread 101 mesh tightly.
[0035] It should be noted that during the forward movement of cable 1, cable 1 does not need to rotate. Therefore, it can be considered that several oblique plate-like parts are spaced apart on the outer peripheral wall of cable 1. The width of the plate-like parts is usually thin. Therefore, as long as the helix angle of the tooth groove 301 is not less than the helix angle of the thread 101, and the width of the tooth groove 301 is greater than the width of the plate-like parts of the thread 101, the plate-like parts of the thread 101 can enter the tooth groove 301, and the meshing of the tooth groove 301 and the thread 101 can be achieved. The helix angle of the thread 101 is generally 15 to 30 degrees, and the helix angle of the tooth groove 301 is generally no more than 45 degrees. If the helix angle of the tooth groove 301 is too large, it will cause the driving force component of the gear 3 on the thread 101 to be small. Generally speaking, the tooth pitch of the gear 3 is an integer multiple of the lead of the thread 101.
[0036] exist Figure 6In a preferred embodiment shown, when the gear 3 drives the cable 1 to move, the rotation of the gear 3 will cause the previous tooth groove 301 to disengage from the thread 101 and the next tooth groove 301 to engage with the next section of the thread 101. Since the cable 1 itself has a certain degree of flexibility and can be bent, the thread 101 may disengage from the tooth groove 301 during this process. This embodiment also includes a roller 4.
[0037] The roller 4 is mounted on the main body 2 and rotates relative to the axis of the main body 2. The roller 4 and the gear 3 are symmetrically arranged on both sides of the cable 1 along its axial direction. The outer peripheral edge of the roller 4 enters the channel 201, and the outer peripheral surface of the roller 4 contacts the outer peripheral surface of the cable 1, pressing the cable 1 onto the gear 3 and engaging the thread 101 with the tooth groove 301. By pressing the cable 1 onto the gear 3 with the roller 4, not only is the cable 1 prevented from disengaging from the gear 3 during movement, but the pressure also forces the thread 101 into the tooth groove 301, straightens the cable 1, and makes its movement smoother.
[0038] exist Figure 6 In a preferred embodiment shown, a cable 1 needs to be placed between the gear 3 and the roller 4. If the cable 1 is inserted directly between the gear 3 and the roller 4, it will be difficult to insert because the front end of the cable 1 will fall due to its own weight. This embodiment also includes a first movable part 5.
[0039] The first movable part 5 is disposed on the main body 2 of the device and a roller 4 is disposed thereon; the first movable part 5 moves relative to the main body 2 of the device and drives the roller 4 to contact or disengage from the cable 1; when the cable 1 needs to be inserted, the first movable part 5 drives the roller 4 away from the gear 3, thereby making room at one end so that the cable 1 can be placed directly on the gear 3, and then the roller 4 is lowered to press down the cable 1.
[0040] exist Figure 5 In a preferred embodiment shown, a drive mechanism 6 and a connecting rod 7 are also included in order to drive the first movable part 5 to move.
[0041] The drive mechanism 6 is mounted on the main body 2 of the device and has a drive end.
[0042] One end of the connecting rod 7 is hinged to the drive end of the drive mechanism 6, and the other end is provided with a first movable part 5; the middle part of the connecting rod 7 is hinged to the main body 2 of the device.
[0043] When the above technical solution is adopted, the drive mechanism 6 drives the drive end to move telescopically, so that the end of the connecting rod 7 with the first movable part 5 rotates around the hinge connection between the connecting rod 7 and the main body 2, and drives the roller 4 to contact or disengage from the cable 1 and the gear 3.
[0044] exist Figure 5In a preferred embodiment shown, in order to restrict the movement of the cable 1 and enable the cable 1 to be aligned with the slot and enter the slot, a first limiting member 8 and a second limiting member 9 are also included.
[0045] Among them, two first limiting members 8 are arranged along the axial direction of the cable 1 on the main body 2 of the device and located on both sides of the gear 3.
[0046] Two second limiting members 9 are arranged along the axial direction of the cable 1 on the first movable part 5 and located on both sides of the roller 4; each first limiting member 8 and each second limiting member 9 are arranged in a one-to-one correspondence, and the first limiting member 8 and the second limiting member 9 are respectively provided with grooves, and the grooves of the first limiting member 8 and the second limiting member 9 form a channel 201.
[0047] exist Figure 6 In a preferred embodiment shown, in specific implementation, the gear 3 and the roller 4 are arranged on both sides of the cable 1 along the vertical direction of the ground, with the roller 4 located directly above the gear 3.
[0048] exist Figure 5 In a preferred embodiment shown, to further limit the range of movement of the cable 1 and enable it to move in a straight line, a groove 401 is provided on the surface of the roller 4. The roller 4 presses the cable 1 onto the gear 3 and makes the outer circumferential surface of the cable 1 contact the inner wall of the groove 401. Specifically, the depth of the groove 401 is not greater than the radius of the cable 1 to avoid frictional obstruction to the rotation of the gear 3 caused by contact between the roller 4 and the gear 3.
[0049] exist Figure 7 In a preferred embodiment shown, combined with Figure 2 , Figure 3 and Figure 6This device is a component of the assembly equipment. During loading, the clamping mechanism clamps the head end of the cable 1 inside the storage box. Then, the clamping mechanism places the head end of the cable 1 on the two first limiting members 8 and the gear 3. The two second limiting members 9 and the two first limiting members 8 then encircle the cable 1. The tail end of the cable 1 will drop due to its own weight and remain dragging inside the storage box. During the initial process of the gear 3 driving the cable 1 to move and insert into the car sunroof slot, the tail end of the cable 1 will remain in a dropping state for a long time. This causes the front end of the cable 1 to lift up due to the weight of the tail end. Since a portion of the front end of the cable 1 passes through the channel 201 formed by the two pairs of second limiting members 9 and first limiting members 8, the portion of the cable 1 located on the two pairs of second limiting members 9 and first limiting members 8 will bend and bulge upwards. This causes the thread 101 of the cable 1 to disengage from the tooth groove 301 of the gear 3, preventing the cable 1 from moving under the drive of the gear 3. Although a roller 4 is provided above the gear 3 to press the cable 1 onto the gear 3, if the distance between the roller 4 and the gear 3 is too large, the cable 1 may still detach from the gear 3. Conversely, if the distance between the roller 4 and the gear 3 is too small, causing the cable 1 to be clamped between the roller 4 and the gear 3, the friction force on the cable 1 during movement will increase significantly, thus hindering the movement of the cable 1. To solve the above problems, this embodiment also includes a second movable part 10.
[0050] One end of cable 1 is inserted into channel 201, while the other end hangs freely.
[0051] The second movable part 10 is mounted on the main body 2 of the device, and a gear 3 is mounted on it. The gear 3 rotates via a reduction motor and two transmission wheels; therefore, the reduction motor and two transmission wheels are also mounted on the second movable part 10. A telescopic mechanism can be mounted on the main body 2, and the second movable part 10 can be mounted on the telescopic mechanism. The second movable part 10 moves vertically relative to the main body 2 along the ground via the telescopic mechanism. The second movable part 10 drives the gear 3 to move upwards vertically relative to the main body 2, causing the edge of the gear 3 in contact with the cable 1 to be misaligned with the central axis of the channel 201. This causes the portion of the cable 1 between the two pairs of first limiting members 8 and second limiting members 9 to bend into an arc shape, meaning the highest point of the contact area between the gear 3 and the cable 1 is higher than the distance between the channel 201 and the ground.
[0052] With the above design, the gear 3 lifts the part of the cable 1 located between the two pairs of limiting members, thereby tightening that part of the cable 1. This ensures that the gear 3 and the cable 1 are tightly engaged, preventing the cable 1 from detaching from the gear 3. At the same time, it is not necessary to precisely control the distance between the roller 4 and the gear 3. It is only necessary to make the wheel surface of the roller 4 contact the surface of the cable 1 to assist the cable 1 in moving.
[0053] Another function of the above design is that during the assembly of cable 1, a lot of lubricating grease is applied to the surface of cable 1, and grease is also applied to gear 3 and roller 4. Ideally, cable 1 will move linearly under the drive of gear 3. However, because the outer circumference of cable 1 has threads 101 and there is grease on the surface of cable 1, cable 1 will actually rotate and sway during linear movement under the drive of gear 3. This may cause the threads 101 of cable 1 to not mesh tightly with the tooth grooves 301 of gear 3. By using gear 3 to lift cable 1 and form a raised arc-shaped bend, the rotational sway of cable 1 can be avoided. In addition, in order to catch the grease dripping from cable 1, gear 3 and roller 4, an oil catcher is usually installed below gear 3.
[0054] exist Figure 7 In a preferred embodiment shown, the ratio of the width of the thread teeth on the thread 101 to the width of the groove 301 is 1:0.9 to 1:1. This is because when the gear 3 lifts the cable 1, the width of the adjacent threads on the bent portion of the thread 101 will decrease. At this time, the ratio of the width of the groove 301 to the width of the thread teeth on the thread 101 is 0.9:1, so that the adjacent threads of the thread 101 can still mesh with the groove 301 after the width of the adjacent threads is reduced. When the cable 1 is taut, the width of the threads on the thread 101 needs to be greater than the width of the groove 301, but this width cannot be too wide to avoid the thread 101 not being able to mesh properly with the groove 301. Therefore, the maximum ratio of the width of the groove 301 to the width of the threads on the thread 101 is 1:1.
[0055] In addition, the helix angle on the thread 101 is the same as the helix angle on the tooth groove 301. The tooth pitch of the tooth groove 301 also needs to be an integer multiple of the lead of the thread 101 so that when the gear 3 rotates and drives the cable 1 forward, the next tooth groove 301 can mesh with the next section of the thread 101. Preferably, the lead of the thread 101 is the same as the tooth pitch of the tooth groove 301. If the tooth pitch of the tooth groove 301 is not an integer multiple of the lead of the thread 101, then when the gear 3 rotates to the next tooth groove 301, the tooth groove 301 may come into contact with the thread 101.
[0056] like Figure 4 As shown, the assembly method of the sunroof cable assembly device of the present invention, using the sunroof cable assembly device of any of the above embodiments, includes the following steps.
[0057] Step 1: Start the drive mechanism 6 to retract, causing the connecting rod 7 to lift up. The first movable part 5 drives the roller 4 and the second limiting part to move away from the gear 3 and the first limiting part.
[0058] Step 2: Place the cable 1 in the grooves of the two first limiting parts, and make the outer peripheral surface of the cable 1 tightly adhere to the outer peripheral surface of the gear 3. Start the drive mechanism 6 to extend and make the connecting rod 7 fall down. The first movable part 5 drives the roller 4 and the second limiting part to move toward the gear 3 and the first limiting part. The second limiting part and the first limiting part form a channel 201 and encircle the cable 1, so that one end of the cable 1 passes through the channel 201 and the other end falls freely.
[0059] Step 3: Drive the second movable part 10 to move upward relative to the main body 2 of the device in the vertical direction of the ground and approach the roller 4, so that the roller 4 presses the cable 1 onto the gear 3 and makes the thread 101 engage with the tooth groove 301 to drive the gear 3 shaft to rotate, and the gear 3 drives the cable 1 to move along the channel 201.
[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A sunroof cable assembly device, characterized in that, include: The main body of the device (2) has a channel (201) inside and a cable (1) passes through the channel (201); Gear (3) is mounted on the main body (2) of the device and rotates relative to the axis of the main body (2); Roller (4) is mounted on the main body (2) of the device and rotates relative to the axis of the main body (2); Two sets of first limiting members (8) and second limiting members (9) are arranged on both sides of the gear (3) along the axial direction of the cable (1); The second movable part (10) is provided on the main body (2) of the device and a gear (3) is provided thereon; The cable (1) has a thread (101) axially arranged around its outer circumference. One end of the cable (1) is inserted into the channel (201) and the other end hangs freely. The outer peripheral contour edge of the gear (3) enters the channel (201), the outer peripheral surface of the gear (3) contacts the outer peripheral surface of the cable (1), the outer peripheral surface of the gear (3) is provided with a tooth groove (301) and the tooth groove (301) meshes with the thread (101), the gear (3) rotates and drives the cable (1) to move along the channel (201); The roller (4) and gear (3) are symmetrically arranged on both sides of the cable (1) axial direction. The outer peripheral contour edge of the roller (4) enters the channel (201). The outer peripheral surface of the roller (4) contacts the outer peripheral surface of the cable (1) and presses the cable (1) onto the gear (3), and the thread (101) meshes with the tooth groove (301). The gear (3) and roller (4) are arranged on both sides of the cable (1) axial direction along the vertical direction of the ground. The roller (4) is located directly above the gear (3). Each of the first limiting members (8) and each of the second limiting members (9) are provided in a one-to-one correspondence. The first limiting members (8) and the second limiting members (9) are provided with grooves, and the grooves of the first limiting members (8) and the second limiting members (9) form a channel (201). The second movable part (10) drives the gear (3) to move upward relative to the device body (2) in the vertical direction of the ground, so that the edge of the gear (3) in contact with the cable (1) is misaligned with the central axis of the channel (201), and the cable (1) is bent into an arc shape between the two pairs of first limiting members (8) and second limiting members (9).
2. The sunroof cable assembly device according to claim 1, characterized in that, Also includes: The first movable part (5) is provided on the main body (2) of the device and a roller (4) is provided thereon; The first movable part (5) moves relative to the main body (2) and drives the roller (4) to contact or disengage from the cable (1).
3. A sunroof cable assembly device according to claim 2, characterized in that, Also includes: A drive mechanism (6) is disposed on the main body (2) of the device and has a drive end; The connecting rod (7) is hinged at one end to the drive end of the drive mechanism (6) and a first movable part (5) is provided on the other end. The connecting rod (7) is hinged to the main body (2) of the device at its middle part; The drive mechanism (6) drives the drive end to extend and retract, causing the end of the connecting rod (7) with the first movable part (5) to rotate around the hinge connection between the connecting rod (7) and the main body (2), and causing the roller (4) to contact or disengage from the cable (1).
4. A sunroof cable assembly device according to claim 1, characterized in that: Two first limiting members (8) are arranged on the main body (2) of the device along the axial direction of the cable (1); two second limiting members (9) are arranged on the first movable part (5) along the axial direction of the cable (1).
5. A sunroof cable assembly device according to claim 1, characterized in that: The roller (4) has a groove (401) on its surface. The roller (4) presses the cable (1) onto the gear (3) and makes the outer circumference of the cable (1) contact the inner wall of the groove (401).
6. A sunroof cable assembly device according to claim 1, characterized in that: The ratio of the width of the thread teeth on the thread (101) to the width of the groove (301) is 1:0.9 to 1:
1.
7. A method for assembling a sunroof cable assembly device, using the sunroof cable assembly device as described in claim 3, characterized in that, Includes the following steps: Step 1: Start the drive mechanism (6) to retract and make the connecting rod (7) tilt up. The first movable part (5) drives the roller (4) and the second limiting part to move away from the gear (3) and the first limiting part. Step 2: Place the cable (1) in the grooves of the two first limiting parts, and make the outer peripheral surface of the cable (1) fit tightly against the outer peripheral surface of the gear (3). Start the drive mechanism (6) to extend and make the connecting rod (7) fall down. The first movable part (5) drives the roller (4) and the second limiting part to move toward the gear (3) and the first limiting part. The second limiting part and the first limiting part form a channel (201) and encircle the cable (1), so that one end of the cable (1) passes through the channel (201) and the other end falls freely. Step 3: Drive the second movable part (10) to move upward relative to the device body (2) in the vertical direction of the ground and approach the roller (4), so that the roller (4) presses the cable (1) onto the gear (3) and makes the thread (101) mesh with the tooth groove (301), drive the gear (3) to rotate, and the gear (3) drives the cable (1) to move along the channel (201).