Pressing cutter driving device of edge covering system
Through the combined structure of the servo reducer motor, active cam and driven guide wheel, combined with the oil-free linear skateboard and control device, the problems of poor accuracy control and low efficiency in the edge-covering system are solved, and high-precision and multi-stroke edge-covering are achieved Driven, improves the quality of edge wrapping and work efficiency.
Patent Information
- Application Number
- CN202323480756.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-20
AI Technical Summary
In the existing edge-enclosed systems, the drive devices have poor accuracy control, no self-locking, slow running speed, poor synchronization, large noise and large footprint, resulting in unstable edge-enclosed quality and low efficiency.
The combined structure of servo reducer motor, active cam and driven guide wheel is adopted to achieve high-precision Y-reciprocating linear displacement of the tool holder through an oil-free linear slide. Combined with the control device and proximity switch, multi-stroke control and efficient driving are achieved.
It improves the quality of edge-bearing and working efficiency, achieves high-precision control and synchronization, reduces equipment investment, complies with safety and environmental protection standards, and simplifies the debugging cycle.
Smart Images
Figure CN222198644U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a knife pressing driving device of an edge binding system. Background Art
[0002] Precision control is the decisive factor for the quality of product hemming, which is reflected in the control of feed position accuracy and work position accuracy during the hemming process. Since hemming is mostly driven by cylinders or hydraulic cylinders, not only is the precision control poor, resulting in unstable hemming quality, but there are also many problems:
[0003] 1. The drive device has no self-locking function and cannot achieve multiple strokes;
[0004] 2. The running speed is slow, the equipment beat is low, and the efficiency is difficult to improve;
[0005] 3. The synchronization is poor, the operation noise is loud, and the area occupied is large. Utility Model Content
[0006] In order to solve the above technical problems, the utility model proposes a knife pressing driving device for an edge binding system, which realizes high-precision and multi-stroke control, has high working efficiency, and provides a strong guarantee for the edge binding quality.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] A cutting tool driving device for an edge wrapping system, wherein the workpiece is placed on the membrane, and the cutting tool is hoisted above the membrane through a cutting tool holder, facing and directly facing the part of the workpiece to be edge wrapped, and can move back and forth along the Y direction with the cutting tool holder toward the part of the workpiece to be edge wrapped, and its structural features are:
[0009] The knife pressing driving device of the hemming system is used to drive the Y-direction reciprocating linear displacement of the knife pressing seat, including a servo reduction motor, an active cam, and a driven guide wheel; the active cam is coaxially connected to the motor shaft of the servo reduction motor, and is a shaft body with a curved groove and a central axis arranged along the Y direction. The curved groove extends along the axial direction, is arranged on the outer periphery of the active cam, and is concave inward along the radial direction. The guide wheel of the driven guide wheel can be rotatably coaxially sleeved on the driven shaft, suspended at the upper end of the active cam, facing the curved groove and extending into the groove, and with the rotation of the active cam, the outer wheel periphery maintains rolling contact with the groove walls on both sides of the curved groove, and moves forward or retreats along the trajectory of the curved groove, forming a reciprocating linear displacement of the driven guide wheel along the Y direction. The knife pressing seat with the knife pressing seat is connected to the upper end of the driven shaft of the driven guide wheel at the center of the bottom, and is synchronously displaced with the driven guide wheel, and can switch between the original position, the primary hemming position, and the secondary hemming position.
[0010] The structural features of the utility model also lie in:
[0011] The bottom of the knife press seat is arranged on the mounting plate, and constitutes a synchronous displacement component with the mounting plate. The knife press seat and the fetal membrane, and the mounting plate and the fetal membrane are connected respectively through oil-free linear slides. The knife press seat and the mounting plate are driven by a driven guide wheel, and form a Y-axis reciprocating linear displacement relative to the fetal membrane through the corresponding oil-free linear slide.
[0012] The oil-free linear slide plate is equipped with a lubrication system.
[0013] The fetal membrane is provided with a pair of L-shaped guide blocks symmetrically arranged along the X direction. The pair of L-shaped guide blocks are inverted and face each other with inner angles, and are respectively adapted to keep contact with the outer edges of the corresponding sides of the press seat with the inner angles.
[0014] The fetal membrane is provided with three groups of proximity switches distributed at intervals along the Y direction, and the three groups of proximity switches are respectively, an in-situ proximity switch for detecting the signal that the knife press seat has reached the in-situ position, a primary edge wrapping position proximity switch for detecting the signal that the knife press seat has reached the primary edge wrapping position, and a secondary edge wrapping proximity switch for detecting the signal that the knife press seat has reached the secondary edge wrapping position. The knife press drive device of the edge wrapping system also includes a control device, and the three groups of proximity switches and the servo reduction motor are respectively connected to and controlled by the control device.
[0015] Corresponding to the original position, the first edge wrapping position and the second edge wrapping position of the press seat, the rotation angles of the active cam are 0°, 335° and 455° respectively. The Y-axis linear displacement from the original position to the first edge wrapping position is 70mm, and the Y-axis linear displacement from the original position to the second edge wrapping position is 100mm.
[0016] Compared with the prior art, the beneficial effects of the utility model are embodied in:
[0017] The utility model has a compact structure, good synchronization, and low noise. It utilizes a servo reduction motor to provide driving force, and can achieve high-precision control of the press knife working position. While improving the quality of hemming, it also improves work efficiency, meets the high-beat requirements of the production line, and reduces the investment in line equipment. In addition, the utility model designs a transmission structure of an active cam and a driven guide wheel. By utilizing the structural characteristics of the active cam, it can achieve higher repeated positioning accuracy and mechanism self-locking, and can realize multiple strokes. Furthermore, this structural form of the drive device has low requirements for motor control, can shorten the debugging cycle, and has both economy and safety, good operability and reliability, and meets safety and environmental protection standards and requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model when it is installed on the fetal membrane;
[0019] Figure 2 yes Figure 1 A schematic diagram of the structure from another perspective;
[0020] Figure 3It is a structural schematic diagram of the utility model when the knife pressing seat is in the original position;
[0021] Figure 4 It is a schematic diagram of the structure of the utility model when viewed from above;
[0022] Figure 5 It is a schematic diagram of the main cross-sectional structure of the utility model;
[0023] Figure 6 It is a schematic diagram of the relative positions of the driven guide wheel and the active cam when the knife press seat is in the original position;
[0024] Figure 7 yes Figure 6 A side view structural schematic diagram of;
[0025] Figure 8 It is a schematic diagram of the relative positions of the driven guide wheel and the active cam when the knife press seat is in the primary hemming position;
[0026] Fig. 9 yes Figure 8 A side view structural schematic diagram of;
[0027] Fig.10 It is a schematic diagram of the relative positions of the driven guide wheel and the active cam when the knife press seat is in the secondary hemming position;
[0028] Fig.11 yes Fig.10 A side view structural schematic diagram of;
[0029] Fig.12 This is the motion curve of the driven guide wheel.
[0030] In the figure, 1 is the fetal membrane; 2 is the L-type guide block; 3 is the Y-guide groove; 4 is the press knife; 5 is the press knife seat; 6 is the servo reduction motor; 7 is the active cam; 7 is the curved groove; 8 is the driven guide wheel; 8 is the guide wheel; 8 is the driven shaft; 9 is the oil-free linear slide plate; 10 is the in-situ proximity switch; 11 is the primary hemming position proximity switch; 12 is the secondary hemming proximity switch; 13 is the lubrication system; 14 is the mounting plate. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] The workpiece is placed on the membrane 1, and the press knife 4 is hoisted above the membrane 1 through the press knife seat 5, facing and directly facing the part of the workpiece to be hemmed, and can move back and forth along the Y direction with the press knife seat 5 toward the part of the workpiece to be hemmed. Figures 1 to 11 The driving device of the hemming system press knife 4 of this embodiment is used to drive the Y-direction reciprocating linear displacement of the press knife seat 5, and includes a servo reduction motor 6, an active cam 7, and a driven guide wheel 8; the active cam 7 is coaxially connected to the motor shaft of the servo reduction motor 6, and is a shaft body with a curved groove 71, and the central axis direction is arranged along the Y direction. The curved groove 71 extends along the axial direction, is arranged on the outer periphery of the active cam 7, and is concave inward along the radial direction. The guide wheel 81 of the driven guide wheel 8 can be rotatably coaxially sleeved on the driven shaft 8 2, suspended on the upper end of the active cam 7, facing the curved groove 71 and extending into the groove, with the rotation of the active cam 7, the outer wheel circumference keeps rolling contact with the groove walls on both sides of the curved groove 71, and moves forward or backward along the trajectory of the curved groove 71, forming a reciprocating linear displacement of the driven guide wheel 8 along the Y direction, and the press knife seat 5 with the press knife 4 is suspended at the bottom The center is connected to the upper end of the driven shaft 82 of the driven guide wheel 8, and moves synchronously with the driven guide wheel 8, and can switch between the original position, the primary hemming position, and the secondary hemming position.
[0033] In a specific implementation, the corresponding structural setting of the device also includes:
[0034] The bottom of the knife press seat 5 is arranged on the mounting plate 14, and forms a synchronous displacement component with the mounting plate 14. The knife press seat 5 and the fetal membrane 1, and the mounting plate 14 and the fetal membrane 1 are connected respectively through oil-free linear slide plates 9. The knife press seat 5 and the mounting plate 14 are driven by the driven guide wheel 8, and form a Y-direction reciprocating linear displacement relative to the fetal membrane 1 through the corresponding oil-free linear slide plates 9;
[0035] A Y guide groove 3 is reserved on the fetal membrane 1 for the Y-direction displacement of the mounting plate 14. The two side plate ends of the mounting plate 14 along the X-direction are slidably fitted on the two side groove walls of the Y guide groove 3 through the oil-free linear slides 9, and slide along the Y guide groove 3 through the oil-free linear slides 9 on both sides.
[0036] The oil-free linear slide plate 9 is provided with a lubrication system 13 .
[0037] A pair of L-shaped guide blocks 2 are symmetrically arranged along the X direction on the fetal membrane 1. The pair of L-shaped guide blocks 2 are inverted and face each other at inner angles, and are respectively in contact with the outer edges of the corresponding sides of the press seat 5 at the inner angles. The upper end of the press seat 5 is slidably matched with the inner top wall of the L-shaped guide block 2 through the oil-free linear slide 9, and the lower end is slidably matched with the upper end of the fetal membrane 1 through the oil-free linear slide 9.
[0038] The fetal membrane 1 is provided with three groups of proximity switches distributed at intervals along the Y direction, and the three groups of proximity switches are respectively, an in-situ proximity switch 10 for detecting the signal that the knife press seat 5 has reached the in-situ position, a primary edge wrapping position proximity switch 11 for detecting the signal that the knife press seat 5 has reached the primary edge wrapping position, and a secondary edge wrapping proximity switch for detecting the signal that the knife press seat 5 has reached the secondary edge wrapping position. The driving device of the knife press 4 of the edge wrapping system also includes a control device, and the three groups of proximity switches and the servo reduction motor 6 are respectively connected to and controlled by the control device.
[0039] Corresponding to the original position, the first edge wrapping position, and the second edge wrapping position of the press knife seat 5, the rotation angles of the active cam 7 are 0°, 335°, and 455° respectively. The Y-direction linear displacement from the original position to the first edge wrapping position is 70 mm, and the Y-direction linear displacement from the original position to the second edge wrapping position is 100 mm. The motion curve of the driven guide wheel 8 is shown in FIG. Fig.12 As shown, the X-axis is the rotation angle of the active cam 7, and the Y-axis is the Y-direction displacement of the driven guide wheel 8.
[0040] As a prior art, the fetal membrane 1 can be raised and lowered. The workpiece is loaded and unloaded by a robot.
[0041] As an application example of this embodiment, the working process of the driving device of the edge wrapping system press knife 4 is as follows:
[0042] After the robot grabs and places the workpiece on the fetal membrane 1, the servo reduction motor 6 drives the active cam 7 to rotate, and the active cam 7 rotates from 0° to 355°. Correspondingly, the press knife 4, the press knife seat 5, and the mounting plate 14 move 70mm along the Y direction toward the workpiece until the first edge wrapping position proximity switch 11 detects the in-position signal of the press knife seat 5, and the pre-edge wrapping is completed. The in-position signal is fed back to the control device, and the control device controls the servo reduction motor 6 to rotate in the opposite direction, so that the active cam 7 is reset from 335° to 0°, and the press knife seat 5 returns to its original position. At this time, the original position proximity switch 10 detects the in-position signal of the press knife seat 5, and the first edge wrapping is completed.
[0043] The fetal membrane 1 rises, and the servo reduction motor 6 drives the active cam 7 to rotate again. The active cam 7 rotates from 0° to 455°. Correspondingly, the press knife 4, the press knife seat 5, and the mounting plate 14 move 100mm along the Y direction toward the workpiece. The secondary hemming position proximity switch detects the in-position signal of the press knife seat 5, and the secondary hemming is completed. The in-position signal is fed back to the control device, and the control device controls the servo reduction motor 6 to rotate in the opposite direction, so that the active cam 7 is reset from 455° to 0°, and the press knife seat 5 returns to its original position. At this time, the original position proximity switch 10 detects the in-position signal of the press knife seat 5, and the hemming action is completed.
[0044] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A knife-pressing driving device for an edge-wrapping system, wherein the workpiece is placed on the fetal membrane, and the knife-pressing device is hoisted above the fetal membrane through a knife-pressing seat, facing and directly facing the part of the workpiece to be edged, and can move reciprocatingly along the Y direction with the knife-pressing seat toward the part of the workpiece to be edged, wherein the features are: The knife pressing driving device of the hemming system is used to drive the Y-direction reciprocating linear displacement of the knife pressing seat, including a servo reduction motor, an active cam, and a driven guide wheel; the active cam is coaxially connected to the motor shaft of the servo reduction motor, and is a shaft body with a curved groove and a central axis arranged along the Y direction. The curved groove extends along the axial direction, is arranged on the outer periphery of the active cam, and is concave inward along the radial direction. The guide wheel of the driven guide wheel can be rotatably coaxially sleeved on the driven shaft, suspended at the upper end of the active cam, facing the curved groove and extending into the groove, and with the rotation of the active cam, the outer wheel periphery maintains rolling contact with the groove walls on both sides of the curved groove, and moves forward or retreats along the trajectory of the curved groove, forming a reciprocating linear displacement of the driven guide wheel along the Y direction. The knife pressing seat with the knife pressing seat is connected to the upper end of the driven shaft of the driven guide wheel at the center of the bottom, and is synchronously displaced with the driven guide wheel, and can switch between the original position, the primary hemming position, and the secondary hemming position.
2. The hemming system press knife driving device according to claim 1, characterized in that: The bottom of the knife press seat is arranged on the mounting plate, and constitutes a synchronous displacement component with the mounting plate. The knife press seat and the fetal membrane, and the mounting plate and the fetal membrane are connected respectively through oil-free linear slides. The knife press seat and the mounting plate are driven by a driven guide wheel, and form a Y-axis reciprocating linear displacement relative to the fetal membrane through the corresponding oil-free linear slide.
3. The hemming system press knife driving device according to claim 2, characterized in that: The oil-free linear slide plate is equipped with a lubrication system.
4. The hemming system press knife driving device according to claim 2, characterized in that: The fetal membrane is provided with a pair of L-shaped guide blocks symmetrically arranged along the X direction. The pair of L-shaped guide blocks are inverted and face each other with inner angles, and are respectively adapted to keep contact with the outer edges of the corresponding sides of the press seat with the inner angles.
5. The hemming system press knife driving device according to claim 1, characterized in that: The fetal membrane is provided with three groups of proximity switches distributed at intervals along the Y direction, and the three groups of proximity switches are respectively, an in-situ proximity switch for detecting the signal that the knife press seat has reached the in-situ position, a primary edge wrapping position proximity switch for detecting the signal that the knife press seat has reached the primary edge wrapping position, and a secondary edge wrapping proximity switch for detecting the signal that the knife press seat has reached the secondary edge wrapping position. The knife press drive device of the edge wrapping system also includes a control device, and the three groups of proximity switches and the servo reduction motor are respectively connected to and controlled by the control device.
6. The hemming system press knife driving device according to claim 1, characterized in that: Corresponding to the original position, the first edge wrapping position and the second edge wrapping position of the press seat, the rotation angles of the active cam are 0°, 335° and 455° respectively. The Y-axis linear displacement from the original position to the first edge wrapping position is 70mm, and the Y-axis linear displacement from the original position to the second edge wrapping position is 100mm.