Plug-in traction mechanism

Abstract

The invention relates to an insertion traction mechanism, including a track structure and a slide, which are slidably adapted and installed; the slide includes a slide bottom plate, a finger clamping cylinder for clamping the rubber strip is arranged on the slide bottom plate, and a driving motor is arranged on the slide bottom plate; the track structure includes a spur rail and two groove rails, and the three are arranged in parallel, the spur rail is located between the two groove rails, and the output end of the driving motor is meshed with the spur rail through a gear; the groove rails are provided with grooves on both sides, and sliders are adaptively mounted thereon, and the sliders are fixed to the slide bottom plate through a bending plate; the bending part of the bending plate is at the same height as the gear, and the horizontal force generated by the gear on the spur rail and the horizontal force generated by the bending plate on the slider are all in the same horizontal plane. The beneficial effects achieved by the present invention are: good horizontal positioning, small tipping tendency, stable operation, ability to realize rubber strip insertion, high position accuracy, good stability, high adjustment accuracy, and high automation.

Description

Technical Field

[0001] The invention relates to the technical field of rubber strip installation, in particular to an insertion traction mechanism. Background Art

[0002] During the installation of the rubber strips of the door panels, the traditional installation method is manual assembly, but due to the low assembly efficiency, the production efficiency of the entire production line is affected, and the installation accuracy is not high enough.

[0003] For this reason, some mechanical installation processes have emerged to achieve automated operation of the rubber strips. This installation method is to press the rubber strips into the grooves by squeezing them when they are delivered to the grooves of the door panels. However, this method can only be used to install rubber strips for grooves that are small inside and large outside, and cannot be used for grooves that are large inside and small outside or of different shapes; and after the installation is completed and the squeezing force is removed, some of the rubber strips will retreat outward.

[0004] Based on this, our company has designed a new process that is very different from ordinary installation, allowing the rubber strip to be installed by insertion, which can effectively solve the above problems.

[0005] During the insertion, the insertion force and insertion accuracy must be guaranteed. Therefore, this scheme designs an insertion traction mechanism to achieve the corresponding purpose by improving the structure of the track and the slide. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an insertion and traction mechanism with good horizontal positioning, small tipping tendency, stable operation, ability to realize rubber strip insertion, high position accuracy, good stability and high adjustment accuracy.

[0007] The object of the present invention is achieved by the following technical solutions: the plug-in traction mechanism includes a track structure and a slide table, which are slidably adapted and installed;

[0008] The slide comprises a slide bottom plate, a finger clamping cylinder for clamping the rubber strip is arranged on the slide bottom plate, and a driving motor is arranged on the slide bottom plate;

[0009] The track structure includes a spur track and two groove tracks, and the three are arranged in parallel. The spur track is located between the two groove tracks, and the output end of the drive motor is meshed with the spur track through a gear.

[0010] The groove rail has grooves on both sides, on which sliding blocks are fitted, and the sliding blocks are fixed to the bottom plate of the slide table through a bent plate;

[0011] The bending part of the bending plate is at the same height as the gear, and the horizontal force generated by the gear on the spur rail and the horizontal force generated by the bending plate on the slider are both in the same horizontal plane;

[0012] For the described drive motor, a torque sensor is provided on its rotating shaft. The torque sensor is electrically connected to an alarm to form a safety alarm system. When the upper limit value or lower limit value set by the torque sensor is exceeded or fallen short of, an alarm is issued.

[0013] The described drive motor 11 is also electrically connected to a control panel.

[0014] Further, the straight tooth rail includes a long strip and a rack. The upper surface of the long strip is stepped. The rack is placed at this step and fixed by screws. This step is opposite to the bent part of the bent plate.

[0015] Further, the bent plate is L-shaped. Its vertical part is fixed on the sliding bottom plate while its horizontal part is fixed on the upper surface of the slider. The bent plate has a depression at the right-angle position and this depression is in the shape of an inverted "ji" character. This inverted "ji" character exerts a horizontal force on the slider. When the sliding table slides on the slide rail structure, the horizontal stability can be ensured.

[0016] Further, the sliding table further includes a displacement cylinder, an I-shaped part, and a displacement bottom plate. The displacement bottom plate is driven and connected by the displacement cylinder. A horizontally inverted I-shaped part is arranged on its surface via a rectangular platform and a guiding optical axis. Finger clamping cylinders are fixed at both ends of the I-shaped part. The displacement cylinder is driven and connected to the displacement bottom plate and is installed on the sliding bottom plate. It drives the finger clamping cylinders to act towards the position of the rubber strip, and the fingers of the finger clamping cylinders clamp the rubber strip.

[0017] Further, there is a spacing between the vertical plates at both ends of the I-shaped part and the rectangular block that can accommodate adjusting pads. The displacement bottom plate is fixed on the displacement block, and the displacement block is displaceably installed on two parallel sliding optical axes. By placing pads, the I-shaped part can be lifted along the guiding optical axis to adjust the height of the finger clamping cylinders. And during the clamping process, according to the position of the rubber strip, the I-shaped part can slide on the guiding optical axis to automatically adjust the height.

[0018] There are two design methods for the displacement plate and the displacement bottom plate: First, the displacement block is a horizontal plate, and the displacement bottom plate includes a horizontal part A and a vertical part A. A rib plate A for strengthening the strength in the displacement direction is provided between them, and the vertical part A is connected to the displacement cylinder. Second, the displacement bottom plate is a horizontal plate. The displacement block includes a horizontal part B and a vertical part B, and a rib plate B for positioning the displacement bottom plate is provided between them. The horizontal part B is in an H shape, and the vertical part B is connected to the displacement cylinder. The first design is to ensure that there is a strong enough force in the displacement direction. The second is to ensure the position accuracy between the displacement bottom plate and the displacement block. When the action strength is not required, the second one is preferred.

[0019] Furthermore, the sliding base plate is provided with a guide groove through a support, and the guide groove is connected to a wiring drag chain; the guide groove and the wiring drag chain lead out the air pipe of the displacement cylinder, the air pipe of the finger clamping cylinder, and the wires.

[0020] The present invention has the following advantages:

[0021] (1) Through the groove rail, spur rail, meshing position of the gear and spur rail, and the inverted "J" part of the bent plate are located in the same horizontal plane, so that the slide can produce a good force effect in the horizontal direction; and this setting reduces the slide's tipping tendency, which is conducive to the smooth sliding of the slide;

[0022] (2) The structure of the displacement block, displacement base plate, and the structure between the rectangular table and the I-shaped piece ensure the position accuracy and stability of the finger clamping cylinder. During insertion, there will be no interference between the finger head and the door panel, thus achieving precise insertion;

[0023] (3) The structure of the spacing formed by the rectangular table and the I-shaped piece, as well as the setting of the guide light axis, enables the fingers on the upper and lower sides to clamp the rubber strip with the same force from the upper and lower sides to prevent the rubber strip from deforming; and the setting of the I-shaped piece and the guide light axis can realize the automatic adaptation and height adjustment when the I-shaped piece clamps the rubber strip;

[0024] (4) By setting up a displacement cylinder, an I-shaped piece, and a finger clamping cylinder, the rubber strip is clamped, thereby realizing the rubber strip insertion method;

[0025] (5) The driving cylinder, displacement cylinder and finger clamping cylinder are controlled by the control panel to realize automatic control of production, and an alarm will be issued when the rubber strip is in the wrong position or falls off. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure arranged between the present invention and the rubber strip;

[0027] Figure 2 It is a structural schematic diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the present invention after removing the upper cover of the groove rail;

[0029] Figure 4 It is a structural schematic diagram of the slide;

[0030] Figure 5 It is a structural schematic diagram when the displacement block in the slide is a horizontal plate;

[0031] Figure 6 It is a structural schematic diagram of a displacement block in a slide including a horizontal part B and a vertical part B;

[0032] In the figure: 100, 1-sliding base plate, 2-displacement cylinder, 3-finger clamping cylinder, 4-I-shaped part, 5-rectangular table, 6-guide optical axis, 7-displacement base plate, 701-horizontal part A, 702-vertical part A, 703-rib plate A, 8-sliding optical axis, 9-displacement block, 901-horizontal part B, 902-vertical part B, 903-rib plate B, 10-guide groove, 11-drive motor, 1101-gear, 200-track structure, 21-spur rack, 2101-long strip, 2102-rack, 22-groove rail, 23-slider, 24-bending plate, 25-cover, 26-wiring drag chain. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0034] like Figures 1 to 6 As shown, the plug-in traction mechanism includes a track structure 200 and a slide 100, which are slidably adapted and installed.

[0035] In this scheme, in order to realize the traction action, a spur rail 21 and two groove rails 22 parallel to each other are provided in the track structure 200; the bottom of the slide 100 is a slide base plate 1, which is slidably installed with the spur rail 21 through a slider 23, and the slide 100 outputs a short gear 1101 that meshes with the spur rail 21 through the driving motor 11, thereby realizing the movement of the slide 100.

[0036] The driving motor 11 has a torque sensor on its rotating shaft, which is electrically connected to the alarm to form a safety alarm system; when the torque exceeds or is less than the upper limit or lower limit set by the torque sensor, an alarm is issued; the driving motor 11 is also electrically connected to the control panel. That is, the driving motor 11 is controlled by the control panel to realize the automatic action of the entire plug-in traction mechanism.

[0037] When the torque formed on the shaft of the driving motor 11 exceeds the set upper limit, it means that the rubber strip does not correspond to the groove position of the door panel, and a certain part of the rubber strip is too tight in the groove of the door panel. When the torque is less than the lower limit, it means that the rubber strip has fallen from the groove of the door panel. An alarm is issued in both cases.

[0038] like Figure 1 As shown, the rubber strip is located on one side of the insertion and traction mechanism, and a finger clamping cylinder 3 is provided on the slide 100 of the insertion and traction mechanism. The finger clamping cylinder 3 clamps the false strip, and the slide 100 slides along the track structure 200, thereby realizing the insertion of the rubber strip.

[0039] During the insertion process, the smoothness of the sliding table 100 during operation, the position accuracy of the sliding table 100, and the position accuracy of the finger clamping cylinder 3 all affect the insertion of the rubber strip. Therefore, the structures of the track structure 200 and the sliding table 100 are designed.

[0040] For the track structure 200, as Figures 1 to 3 shown:

[0041] The straight tooth rail 21 is located between two groove rails 22; wherein, grooves are opened on both sides of the groove rail 22, and sliders 23 are adaptively installed thereon, that is, the up and down position is positioned; the slider bottom plate 1 of the sliding table 100 is provided with a slider 23 through a bending plate 24; the bending plate 24 is L-shaped, and it is recessed downward at the right angle position and the recess is in the shape of an inverted "Ji" character, and the "Ji" character shape is at the same horizontal height as the meshing position of the gear 1101 and the straight tooth rail 21.

[0042] The principle of the bending plate 24 in the shape of a "Ji" character is that when a force is generated between the gear 1101 and the straight tooth rail 21, a force will be formed on the sliding table 100 in the horizontal plane, so that the sliding table 100 will generate a force on the side surface of the slider 23 through the "Ji" character part of the bending plate 24. Then, the height difference between the force generated and the force formed between the slider 23 and the groove rail 22 is very small, so the tilting force generated is very small, which is conducive to the smooth operation of the sliding table 100.

[0043] In this embodiment, the straight tooth rail 21 includes a long strip 2101 and a rack 2102. The upper surface of the long strip 2101 is stepped, and the rack 2102 is placed on this step and fixed by screws. This step is opposite to the bending part of the bending plate 24.

[0044] In this embodiment, a cover 25 is also provided outside the straight tooth rail 21 and the groove rail 22 to prevent dust from having an adverse effect on the sliding.

[0045] For the sliding table 100, as Figures 4 to 6 shown:

[0046] The sliding table 100 includes a sliding bottom plate 1. A driving motor 11 is arranged on the sliding bottom plate 1. The output end of the driving motor 11 passes through the sliding bottom plate 1 and the output end realizes the movement of the entire sliding table through a gear.

[0047] A finger clamping cylinder 3 is also arranged on the sliding bottom plate 1. The rubber strip is clamped by the fingers of the finger clamping cylinder 3. When the sliding table slides, it drives the rubber strip to be inserted into the groove of the door panel to achieve installation.

[0048] While clamping and releasing, there is a movement between the finger clamping cylinder 3 and the rubber strip. When inserting, the cylinder body first approaches the rubber strip, then clamps, and then the entire slide slides; when the insertion is completed, the slide needs to be reset, then the clamping is released, and the cylinder body is far away from the rubber strip. To this end, this solution sets a displacement cylinder 2 to drive the finger clamping cylinder 3 to achieve this action.

[0049] During the insertion, the clamping accuracy must be met, which is achieved through the accuracy of the position and the stability and accuracy of the action. Otherwise, during the insertion, interference is likely to occur and the position of the rubber strip is not installed well enough. Therefore, the structural design of the slide table in this scheme is as follows:

[0050] The overall design is as follows: on the sliding base plate 1, two parallel sliding optical axes 8 are arranged through the support blocks, and the axial direction of the sliding optical axis 8 is perpendicular to the side of the rubber strip; on the sliding optical axis 8, a slidable displacement block 9 is adaptively shaped on the sliding optical axis 8, and a displacement base plate 7 is mounted on the displacement block 9, and the displacement base plate 7 is connected to the displacement cylinder 2 by driving; a horizontally arranged I-shaped piece 4 is placed on the displacement base plate 7 through a rectangular table 5, and a finger clamping cylinder 3 is respectively installed at both ends of the I-shaped piece 4, and the two finger clamping cylinders 3 clamp the rubber strip together.

[0051] Since the precision cannot be achieved in one step during assembly, the finger clamping cylinder 3 clamps the rubber strip from the upper and lower sides during the clamping process. Therefore, the distance between the finger heads on the upper and lower sides and the rubber strip is not necessarily equal, so the same force cannot be used to clamp, which easily leads to deformation of the rubber strip. In order to be able to adjust, the rectangular table 5 is fixed on the displacement bottom plate 7, and the I-shaped member 4 is placed horizontally and inverted on the rectangular table 5. The vertical plates at both ends of the I-shaped member 4 form a gap with the rectangular table 5; and the I-shaped member 4 is installed on the rectangular table 5 through the guide light axis 6. When adjustment is required, the height of the finger heads on the upper and lower sides is measured, and then the height of the rubber strip to be installed at the door panel groove is measured. The height to be adjusted is calculated, and the pad is placed at the gap between the vertical plate of the I-shaped member 4 and the rectangular table 5. When selecting the pad, its thickness is required to be consistent with the height to be adjusted. The accuracy of the adjustment is guaranteed. When the finger clamping cylinder 3 on the I-shaped member 4 clamps the rubber strip, the height position of the finger clamping cylinder 3 slides freely up and down along the guide light axis 6 with the I-shaped member 4, thereby realizing automatic adaptation and adjustment.

[0052] In this embodiment, the displacement block 9 is designed to be notched and H-shaped to reduce friction, and its notch position is adapted to be installed with the sliding optical axis 8. The friction between the displacement block 9 and the sliding optical axis 8 is reduced, which facilitates the displacement block 9 to move along the sliding optical axis 8.

[0053] In this embodiment, two design ideas are adopted for the displacement block 9 and the displacement base plate 7, and they are selected according to different needs:

[0054] The first design, such as Figure 5As shown: the displacement block 9 is in the shape of a horizontal plate, the displacement bottom plate 7 includes a horizontal part A701 and a vertical part A702, between which a rib plate A703 is arranged for strengthening the strength in the displacement direction, and the vertical part A702 is connected to the displacement cylinder 2. That is, the rib plate A703 ensures the reliability between the horizontal part A701 and the vertical part A702 on the one hand; on the other hand, when the displacement cylinder 2 is in motion, a large part of the thrust force generated by it is directly transmitted through the rib plate A703, which has a very strong action force. The action force is large enough, but the disadvantage is that it needs to be debugged after installation.

[0055] The second design, such as Figure 6 As shown: The second type, the displacement base plate 7 is in the shape of a horizontal plate; the displacement block 9 includes a horizontal part B901 and a vertical part B902, and a rib plate B903 for positioning the displacement base plate 7 is arranged between the two; the horizontal part B901 is H-shaped, and the vertical part B902 is connected to the displacement cylinder 2. The positioning principle of the rib plate B903 is that a notch matching the rib plate B903 is opened on the displacement base plate 7. When the displacement base plate 7 is installed, the notch is stuck on the rib plate B903, and then it is fixed to the displacement block 9 by screws, without worrying about the error caused by tightening the screws. After installation, basically no debugging is required, but the force is not strong enough.

[0056] In this embodiment, the displacement cylinder 2 is a three-axis cylinder, which is fixed on the slide base plate 1 through a support block. Its height is consistent with that of the I-shaped member 4 to ensure the stability and reliability of the action.

[0057] In this embodiment, a guide groove 10 is provided on the sliding base plate 1 through a support, and the air pipe of the displacement cylinder 2, the air pipe of the finger clamping cylinder 3, and the electric wires are located in the guide groove 10 to prevent the slide from being affected by these pipes and wires when moving.

[0058] The above embodiments only express preferred implementation modes, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. Insertion traction mechanism, Characterized in that: It includes a track structure (200) and a slide table (100), which are slidably and adaptively installed; The slide table (100) includes a sliding bottom plate (1). A finger clamping cylinder (3) for clamping the rubber strip is arranged on the sliding bottom plate (1), and a driving motor (11) is arranged on the sliding bottom plate (1); The track structure (200) includes a straight tooth rail (21) and two groove rails (22), and the three are arranged in parallel. The straight tooth rail (21) is located between the two groove rails (22). The output end of the driving motor (11) is meshed with the straight tooth rail (21) through a gear (1101); Grooves are opened on both sides of the groove rail (22), and sliders (23) are adaptively installed thereon. The sliders (23) are fixed to the sliding bottom plate (1) through bending plates (24); The bent part of the bending plate (24) is at the same height as the gear (1101). The horizontal force generated by the gear (1101) on the straight tooth rail (21) and the horizontal force generated by the bending plate (24) on the slider (23) are both in the same horizontal plane; For the driving motor (11), a torque sensor is arranged on its rotating shaft. The torque sensor is electrically connected to an alarm to form a safety alarm system; when it exceeds or is less than the upper limit value and the lower limit value set by the torque sensor, an alarm is issued; The driving motor (11) is also electrically connected to a control panel; The straight tooth rail (21) includes a long strip (2101) and a rack (2101). The upper surface of the long strip (2101) is stepped. The rack (2102) is placed at this step and fixed by screws. This step is opposite to the bent part of the bending plate (24); The bending plate (24) is L-shaped. Its vertical part is fixed to the sliding bottom plate (1) and its horizontal part is fixed to the upper surface of the slider (23); for the bending plate (24), it is recessed downward at the right angle position and this recess is in the shape of an inverted "ji" character. This inverted "ji" character generates a horizontal force on the slider (23).

2. The insertion traction mechanism according to claim 1, Characterized in that: The slide table (100) further includes a displacement cylinder (2), an I-shaped part (4), and a displacement bottom plate (7); The displacement bottom plate (7) is driven and connected by a displacement cylinder (2). A horizontally inverted I-shaped part (4) is arranged on its surface through a rectangular table (5) and a guiding optical axis (6). Finger clamping cylinders (3) are fixed at both ends of the I-shaped part (4); The displacement cylinder (2) is driven and connected to the displacement bottom plate (7), and it is installed on the sliding bottom plate (1). It drives the finger clamping cylinder (3) to move towards the position of the rubber strip, and the fingers of the finger clamping cylinder (3) clamp the rubber strip; Both the displacement cylinder (2) and the finger clamping cylinder (3) are electrically connected to a control panel.

3. The insertion traction mechanism according to claim 2, Characterized in that: There is a spacing for placing adjustment pads between the vertical plates at both ends of the I-shaped part (4) and the rectangular block (5); The displacement bottom plate (7) is fixed to a displacement block (9), and the displacement block (9) is displaceably installed on two parallel sliding optical axes (8).

4. The plug-in traction mechanism according to claim 3, Features: The displacement block (9) is in the form of a horizontal plate, which is in the shape of an H and the H end cooperates with the sliding optical axis (8); The displacement base plate (7) comprises a horizontal portion A (701) and a vertical portion A (702), between which a rib plate A (703) is provided for reinforcing the strength in the displacement direction, and the vertical portion A (702) is connected to the displacement cylinder (2).

5. The plug-in traction mechanism according to claim 3, Features: The displacement bottom plate (7) is in the shape of a horizontal plate; The displacement block (9) comprises a horizontal portion B (901) and a vertical portion B (902), and a rib plate B (903) for positioning the displacement base plate (7) is provided between the horizontal portion B (901) and the vertical portion B (902) is connected to the displacement cylinder (2).

6. The plug-in traction mechanism according to claim 4 or 5, Features: The sliding base plate (1) is provided with a guide groove (10) via a support column, and the guide groove (10) is connected to the wiring drag chain (26); The guide groove (10) and the cable drag chain (26) lead out the air pipe of the displacement cylinder (2), the air pipe of the finger clamping cylinder (3), and the electric wires.

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