A tool positioning mechanism for line-to-line laser welding

Abstract

The present invention discloses a tool positioning mechanism for line-to-line laser welding, comprising a feeding tool, a positioning module, a rotatably installed and fixed pressing and fixing module, and a thread end limiting mechanism. After the feeding tool installs the material, the thread end limiting mechanism can be moved close to the pressing and fixing module, and the motor lead is inserted into the guide channel of the thread end limiting mechanism along the guide channel of the positioning module to align the position and length. Then the pressing and fixing module is rotated to press the motor lead passing through the guide channel. In this way, the present invention can simultaneously position the motor lead from three directions, and after welding is completed, the fixing module can be opened again by rotation. In this way, the present invention ensures that the automatic production line or automated equipment can produce continuously, and it is convenient for the tool to automatically open and take out materials when it flows to the downstream workstation.

Description

Technical Field

[0001] The present invention relates to the field of line-to-line laser welding, and in particular to a tool positioning mechanism for line-to-line laser welding. Background Art

[0002] Currently, semi-automatic production lines or automated equipment production lines use tooling to load and position materials. This tooling positioning requires simultaneous positioning in the X, Y, and Z directions. In addition, after positioning is completed, the current assembly line cannot fully guarantee that the automatic production line or automated equipment can continue production, because when the tooling flows to the next station, it cannot be automatically opened to pick up materials. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a tool positioning mechanism for line-to-line laser welding in response to the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present invention to solve the technical problem is to construct a tool positioning mechanism for line-to-line laser welding, comprising:

[0005] A loading tool for installing the material so that the motor lead of the material extends parallel to the first horizontal direction, and the wire head of the motor lead is divided into two sections of a reduced diameter structure composed of cylinders of different radial sizes;

[0006] a positioning module, arranged opposite to the loading fixture in the first horizontal direction, the positioning module comprising a guide channel extending parallel to the first horizontal direction, the guide channel being used to guide the motor lead to pass through the positioning module along the first horizontal direction;

[0007] A rotatably mounted and fixed compression module, wherein the rotation axis of the compression module is parallel to the first horizontal direction, the compression module is located above the positioning module to compress the motor lead passing through the guide channel, and can be rotated to release the compression effect on the motor lead;

[0008] The wire end limiting mechanism is arranged opposite to the positioning module in the first horizontal direction and can move back and forth in the first horizontal direction. The wire end limiting mechanism includes a reducing channel extending parallel to the first horizontal direction and opposite to the guide channel. The reducing channel is adapted to the reducing structure of the motor lead. The wire end limiting mechanism is used to move close to the clamping and fixing module so that the reducing structure of the motor lead is inserted into the reducing channel, thereby aligning the position and length of the motor lead, and move away from the clamping and fixing module after the motor lead is aligned with the position and length to expose the reducing structure of the motor lead for subsequent welding.

[0009] Preferably, the positioning module includes a front positioning plate and a rear positioning plate arranged side by side along the first horizontal direction, the front positioning plate and the rear positioning plate are both arranged along the second horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, the clamping and fixing module is located above the rear positioning plate and can be rotatably opened; at least one group of the guide channels is opened on the front positioning plate along its length direction, the guide channel is a through hole that passes through the front positioning plate and is open at only two ends, the rear positioning plate is located on the side of the front positioning plate away from the loading tooling, the top of the rear positioning plate is recessed to form at least one group of guide grooves extending along its length direction, the guide grooves extend parallel to the first horizontal direction, and the motor leads pass through the guide channels and enter the guide grooves.

[0010] Preferably, the clamping and fixing module includes a wire pressing plate and a mounting ear, one end of the wire pressing plate is connected to the mounting ear through a rotating shaft parallel to the first horizontal direction, and the wire pressing plate is located above the rear positioning plate to clamp the motor lead exposed in the guide groove.

[0011] Preferably, a lug is formed on the top of the wire pressing plate near the mounting ear so as to be pushed to open the wire pressing plate after welding is completed.

[0012] Preferably, the bottom of the wire pressing plate for pressing with the rear positioning plate is covered with a soft rubber layer.

[0013] Preferably, the wire pressing plate is provided with a magnet, and a magnet is provided under the positioning module. The magnet of the wire pressing plate and the magnet under the positioning module attract each other to provide a force for the wire pressing plate to press against the rear positioning plate.

[0014] Preferably, the guide channel is funnel-shaped, and is divided into a trumpet hole and a cylindrical hole connected to the trumpet hole along a first horizontal direction, and the trumpet hole faces the loading tooling;

[0015] The guide groove is half funnel-shaped, and is divided into a horn groove and a cylindrical groove connected to the horn groove along a first horizontal direction. The horn groove faces the cylindrical hole, and the cylindrical hole is collinear with the center line of the cylindrical groove. The aperture of the cylindrical groove is smaller than the aperture of the cylindrical hole.

[0016] Preferably, the thread end limiting mechanism includes a slide rail parallel to the first horizontal direction, a slider assembly installed on the slide rail and able to slide along the slide rail, and an alignment plate connected to the slider assembly. The alignment plate is arranged along the second horizontal direction, and at least one group of the reducing channels is arranged along the length direction of the side of the alignment plate facing the positioning module.

[0017] Preferably, the reduced diameter channel includes a horn inlet and a cylindrical through hole, the horn inlet faces the positioning module, the radial size of the cylindrical through hole is adapted to the radial size of the small-sized cylinder of the reduced diameter structure of the motor lead, so that only the small-sized cylinder of the reduced diameter structure of the motor lead can be inserted, and the connection between the horn inlet and the cylindrical through hole is used to abut the large-sized cylinder of the reduced diameter structure of the motor lead.

[0018] Preferably, a base is further included, and the loading tool includes at least one material installation point, each of the material installation point is used to install a material, and a plurality of magnets are arranged around each of the material installation points on the loading tool to prevent the material from warping up.

[0019] The tooling positioning mechanism for line-to-line laser welding of the present invention has the following beneficial effects: after the material is installed in the present invention, the wire end limiting mechanism can be moved close to the clamping and fixing module, and the motor lead is inserted into the guide channel of the wire end limiting mechanism along the guide channel of the positioning module to align the position and length, and then the clamping and fixing module is rotated to clamp the motor lead passing through the guide channel. In this way, the present invention can simultaneously position the motor lead from three directions, and after the welding is completed, the fixing module can be opened again by rotation. In this way, the present invention ensures that the automatic production line or automated equipment can produce continuously, and it is convenient for the tooling to automatically open and take out materials when it flows to the downstream workstation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present invention. Those skilled in the art can also derive other drawings based on the provided drawings without inventive work.

[0021] Figure 1 This is a schematic diagram of the state of the tool positioning mechanism of the line-to-line laser welding of the present invention when installing materials;

[0022] Figure 2 This is a schematic diagram of the state of the tool positioning mechanism of the line-to-line laser welding of the present invention after the material is installed;

[0023] Figure 3 It is a partial structural schematic diagram of the tool positioning mechanism for line-to-line laser welding of the present invention;

[0024] Figure 4 It is a partial structural schematic diagram of the tool positioning mechanism for line-to-line laser welding of the present invention from another angle;

[0025] Figure 5 This is a structural diagram of the alignment plate. DETAILED DESCRIPTION

[0026] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Typical embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations of the technical solutions of the present application. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0027] It should be noted that the term "connected" or "connected" as used herein includes not only direct connection of two entities but also indirect connection via other entities that have a beneficial improvement effect. The terms "vertical," "horizontal," "left," "right," and similar directional expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] Terms containing ordinal numbers, such as "first" and "second," used in this specification may be used to describe various components, but these components are not limited by these terms. These terms are used solely to distinguish one component from another. For example, a first component may be named a second component, and similarly, a second component may be named a first component, without departing from the scope of the present invention.

[0030] refer to Figure 1-5 The tooling positioning mechanism for line-to-line laser welding in this embodiment includes a base assembly 1 and a loading tooling 3, a positioning module 4, a clamping and fixing module 5, and a thread end limiting mechanism 6 disposed on the base assembly 1. The base assembly 1 is mounted on a tooling base, which can be transported to the desired workstation via a flow channel.

[0031] A loading fixture 3 is used to install the material 2 so that the motor lead of the material 2 extends parallel to the first horizontal direction, and the wire head of the motor lead is divided into two sections of a reduced diameter structure consisting of cylinders of different radial sizes;

[0032] a positioning module 4, arranged opposite to the loading fixture 3 in the first horizontal direction, the positioning module 4 including a guide channel 410 extending parallel to the first horizontal direction, the guide channel 410 being used to guide the motor lead to pass through the positioning module 4 along the first horizontal direction;

[0033] The pressing and fixing module 5 is rotatably mounted and fixed, and the rotation axis of the pressing and fixing module 5 is parallel to the first horizontal direction. The pressing and fixing module 5 is located above the positioning module 4 to press the motor leads passing through the guide channel 410, and can be rotated to release the pressing effect on the motor leads.

[0034] The wire end limiting mechanism 6 is arranged opposite to the positioning module 4 in the first horizontal direction and can move back and forth in the first horizontal direction. The wire end limiting mechanism 6 includes a reducing channel 630 extending parallel to the first horizontal direction and opposite to the guide channel 410. The reducing channel 630 is adapted to the reducing structure of the motor lead. The wire end limiting mechanism 6 is used to move close to the clamping and fixing module 5 so that the reducing structure of the motor lead is inserted into the reducing channel 630, thereby aligning the position and length of the motor lead, and moving away from the clamping and fixing module 5 after the motor lead is aligned with the position and length to expose the reducing structure of the motor lead for subsequent welding.

[0035] The following is a detailed description of each structure.

[0036] refer to Figure 3-4 The loading tooling 3 is roughly in the shape of a rectangular plate, and includes at least one material 2 installation point thereon, and in this embodiment, there are two material 2 installation points, each of which is used to install one material 2. Preferably, in this embodiment, a plurality of magnets are arranged around each of the material 2 installation points on the loading tooling 3 to prevent the material 2 (the material 2 is an iron core) from warping up.

[0037] Combine Figure 1-2 ,refer to Figure 3-4 The positioning module 4 includes a front positioning plate 41 and a rear positioning plate 42 arranged side by side along a first horizontal direction. Specifically, the front positioning plate 41 is composed of an upper cover plate 141 and a lower base plate 142. The front positioning plate 41, the upper cover plate 141, and the lower base plate 142 are all strip-shaped plate structures. When the upper cover plate 141 and the lower base plate 142 are assembled, at least one set of the guide channels 410 is formed. The front positioning plate 41 and the rear positioning plate 42 are both arranged along a second horizontal direction, which is perpendicular to the first horizontal direction. In this document, the first horizontal direction is the left-right direction, and the second horizontal direction is the front-back direction.

[0038] The front positioning plate 41 has at least one set of guide channels 410 defined along its length, specifically two sets of guide channels 410 in this embodiment. The specific number of guide channels 410 in each set corresponds to the number of motor lead wires. For example, as shown in the figure, each material 2 has three motor lead wires, so three guide channels 410 constitute a set. Each guide channel 410 is a through-hole that extends through the front positioning plate 41, open at only two ends. The rear positioning plate 42 is located on the side of the front positioning plate 41 away from the loading fixture 3. The top of the rear positioning plate 42 is recessed to form at least one set of guide grooves 420 extending along its length, specifically two sets of guide grooves 420 in this embodiment. Similarly, the specific number of guide grooves 420 in each set corresponds to the number of motor lead wires, so three guide grooves 420 constitute a set. The guide grooves 420 also extend parallel to the first horizontal direction, and the motor leads pass through the guide channels 410 and enter the guide grooves 420.

[0039] Specifically, the guide channel 410 is funnel-shaped and is divided into a trumpet hole and a cylindrical hole connected to the trumpet hole along a first horizontal direction, with the trumpet hole facing the loading fixture 3. The guide groove 420 is half-funnel-shaped and is divided into a trumpet groove and a cylindrical groove connected to the trumpet groove along a first horizontal direction, with the trumpet groove facing the cylindrical hole. The cylindrical hole is collinear with the centerline of the cylindrical groove, and the diameter of the cylindrical groove is smaller than the diameter of the cylindrical hole.

[0040] The clamping and fixing module 5 is located above the rear positioning plate 42 and can be rotated to open, that is, the motor lead in the present invention enters the guide groove 420 after preliminary guidance through the guide channel 410. The guide groove 420 not only guides the motor lead to align with the front wire end limiting mechanism 6, but also facilitates the clamping and fixing module 5 to be clamped and fixed after the motor lead is exposed.

[0041] In this embodiment, the number of the pressing and fixing modules 5 is two, and the two pressing and fixing modules 5 are distributed at the left and right ends of the positioning module 4. Figure 3-4 In order to facilitate observation of the positioning module 4, the pressing and fixing module 5 at the right end is hidden.

[0042] The clamping and fixing module 5 includes a wire pressing plate 52 and a mounting ear 51. One end of the wire pressing plate 52 is connected to the mounting ear 51 via a rotating shaft parallel to the first horizontal direction. The wire pressing plate 52 is located above the rear positioning plate 42 to press the motor leads exposed in the guide groove 420. A lug is formed on the top of the wire pressing plate 52 near the mounting ear 51 to be opened by toggling the wire pressing plate 52 after welding is completed. The lug is arranged as close to the mounting ear 51 as possible, so that it is convenient to toggle the lug to open the wire pressing plate 52.

[0043] Preferably, the bottom of the wire pressing plate 52 for pressing with the rear positioning plate 42 is coated with a soft rubber layer 53, so as to better press the motor leads without damaging the motor leads.

[0044] In order to ensure the reliability of the clamping, a magnet is provided on the wire pressing plate 52 in this embodiment. The size and shape of the magnet are not limited. For example, a magnet mounting hole can be opened on the top of the wire pressing plate 52 to embed and install the magnet. Correspondingly, a magnet 7 is provided under the positioning module 4. Specifically, the magnet 7 can be fixed in the base assembly 1. The magnet of the wire pressing plate 52 and the magnet 7 under the positioning module 4 attract each other to provide the wire pressing plate 52 with a force pressing against the rear positioning plate 42.

[0045] Combine Figure 1-2 ,refer to Figure 5 The thread end limiting mechanism 6 includes a slide rail 61 parallel to the first horizontal direction, a slider assembly 62 mounted on the slide rail 61, and an alignment plate 63 connected to the slider assembly 62. For example, a motor can be used to drive the slider assembly 62 to slide along the slide rail 61. The alignment plate 63 is arranged along the second horizontal direction. At least one group of reduced diameter channels 630 is provided along its length on the side of the alignment plate 63 facing the positioning module 4. Similarly, the specific number of reduced diameter channels 630 in each group is consistent with the number of thread ends in the motor lead wires, so three reduced diameter channels 630 constitute a group.

[0046] Specifically, the reduced diameter channel 630 includes a horn inlet and a cylindrical through hole, the horn inlet faces the positioning module 4, the radial size of the cylindrical through hole is adapted to the radial size of the small-sized cylinder of the reduced diameter structure of the motor lead, so that only the small-sized cylinder of the reduced diameter structure of the motor lead can be inserted, and the connection between the horn inlet and the cylindrical through hole is used to abut the large-sized cylinder of the reduced diameter structure of the motor lead.

[0047] In this embodiment, the wire pressing plate 52 does not completely cover the entire rear positioning plate 42. The side of the rear positioning plate 42 facing away from the front positioning plate 41 is protruding, so the side of the alignment plate 63 facing the positioning module 4 has a corresponding groove, mainly to avoid the convex edge of the rear positioning plate 42.

[0048] The application process of this embodiment is described below: the wire pressing plate 52 is opened, the material 2 is installed, the alignment plate 63 is moved close to the positioning module 4, the motor lead is inserted into the guide channel 410, and then inserted into the guide groove 420 along the guide channel 410, and then inserted into the reduced diameter channel 630 from the guide groove 420 until it can no longer be inserted forward, and the wire pressing plate 52 is rotated to move it to the rear positioning plate 42, so as to limit and fix the motor lead in the vertical direction, as shown in FIG. Figure 1 As shown. Figure 2 , then controls the wire pressing plate 52 to retract. The entire tooling is transferred through the flow channel to the laser welding tooling. The blocking cylinder and the lifting cylinder operate to accurately position the tooling. The robot grabs the PVC extension cable from the feeding platform, takes a picture through the vision system, calculates the center position of the cable end, and then automatically welds it to the motor lead. Once completed, it is automatically transferred to the unloading station. The lever moves to open the left and right wire pressing plates 52. The employee removes the welded product and presses the switch, and the tooling automatically returns to the previous process for automatic transfer.

[0049] In summary, the tooling positioning mechanism for line-to-line laser welding of the present invention has the following beneficial effects: after the material is installed in the present invention, the wire end limiting mechanism can be moved close to the clamping and fixing module, and the motor lead is inserted into the guide channel of the wire end limiting mechanism along the guide channel of the positioning module to align the position and length, and then the clamping and fixing module is rotated to clamp the motor lead passing through the guide channel. In this way, the present invention can simultaneously position the motor lead from three directions, and after the welding is completed, the fixing module can be opened again by rotation. In this way, the present invention ensures that the automatic production line or automated equipment can produce continuously, and it is convenient for the tooling to automatically open and take out materials when it flows to the downstream workstation.

[0050] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are protected by the present invention.

Claims

1. A tool positioning mechanism for line-to-line laser welding, characterized in that: include: A loading tool (3) is used to install the material (2) so that the motor lead of the material (2) extends parallel to the first horizontal direction, and the wire head of the motor lead is divided into a reduced diameter structure composed of two sections of cylinders with different radial sizes; A positioning module (4) is arranged opposite to the loading tool (3) in a first horizontal direction, and the positioning module (4) includes a guide channel (410) extending parallel to the first horizontal direction, and the guide channel (410) is used to guide the motor lead to pass through the positioning module along the first horizontal direction; A rotatably mounted and fixed compression fixing module (5), wherein the rotation axis of the compression fixing module (5) is parallel to the first horizontal direction, the compression fixing module (5) is located above the positioning module (4) to compress the motor lead passing through the guide channel (410), and can be rotated open to cancel the compression effect on the motor lead; A thread end limiting mechanism (6) is arranged opposite to the positioning module (4) in the first horizontal direction and can move back and forth in the first horizontal direction. The thread end limiting mechanism (6) includes a diameter reduction channel (630) extending parallel to the first horizontal direction and opposite to the guide channel (410). The diameter reduction channel (630) is adapted to the diameter reduction structure of the motor lead. The thread end limiting mechanism (6) is used to move close to the pressing and fixing module (5) so that the diameter reduction structure of the motor lead is inserted into the diameter reduction channel (630) to adjust the position and length of the motor lead, and after the position and length of the motor lead are adjusted, move away from the pressing and fixing module (5) to expose the diameter reduction structure of the motor lead for subsequent welding.

2. The tooling positioning mechanism for line-to-line laser welding according to claim 1, characterized in that: The positioning module (4) includes a front positioning plate (41) and a rear positioning plate (42) arranged side by side along a first horizontal direction, the front positioning plate (41) and the rear positioning plate (42) are both arranged along a second horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, the pressing and fixing module (5) is located above the rear positioning plate (42) and can be rotated to open; at least one group of the guide channels (410) is opened on the front positioning plate (41) along its length direction, the guide channel (410) is a through hole that is open at only two ends and passes through the front positioning plate (41), the rear positioning plate (42) is located on the side of the front positioning plate (41) away from the loading tooling (3), the top of the rear positioning plate (42) is recessed to form at least one group of guide grooves (420) extending along its length direction, the guide grooves (420) extend parallel to the first horizontal direction, and the motor lead passes through the guide channel (410) and enters the guide groove (420).

3. The tooling positioning mechanism for line-to-line laser welding according to claim 2, characterized in that: The pressing and fixing module (5) comprises a wire pressing plate (52) and a mounting ear (51), one end of the wire pressing plate (52) is connected to the mounting ear (51) via a rotating shaft parallel to a first horizontal direction, and the wire pressing plate (52) is located above the rear positioning plate (42) to press the motor lead exposed in the guide groove (420).

4. The tooling positioning mechanism for line-to-line laser welding according to claim 3, characterized in that: The top of the wire pressing plate (52) is convexly formed at a position close to the mounting ear (51) to form a lug for being moved to open the wire pressing plate (52) after welding is completed.

5. The tooling positioning mechanism for line-to-line laser welding according to claim 3, characterized in that: The bottom of the wire pressing plate (52) for pressing with the rear positioning plate (42) is coated with a soft rubber layer (53).

6. The tooling positioning mechanism for line-to-line laser welding according to claim 3, characterized in that: The wire pressing plate (52) is provided with a magnet, and a magnet is provided below the positioning module (4). The magnet of the wire pressing plate (52) and the magnet below the positioning module (4) attract each other to provide a force for the wire pressing plate (52) to press against the rear positioning plate (42).

7. The tooling positioning mechanism for line-to-line laser welding according to claim 2, characterized in that: The guide channel (410) is funnel-shaped, and is divided into a trumpet hole and a cylindrical hole connected to the trumpet hole along a first horizontal direction, wherein the trumpet hole faces the loading tool (3); The guide groove (420) is half funnel-shaped, and is divided into a trumpet groove and a cylindrical groove connected to the trumpet groove along a first horizontal direction, the trumpet groove faces the cylindrical hole, the cylindrical hole is collinear with the center line of the cylindrical groove, and the aperture of the cylindrical groove is smaller than the aperture of the cylindrical hole.

8. The tooling positioning mechanism for line-to-line laser welding according to claim 1, characterized in that: The thread end limiting mechanism (6) comprises a slide rail (61) parallel to a first horizontal direction, a slider assembly (62) mounted on the slide rail (61) and capable of sliding along the slide rail (61), and an alignment plate (63) connected to the slider assembly (62); the alignment plate (63) is arranged along a second horizontal direction; and at least one group of the reduced diameter channels (630) is provided along the length direction of the alignment plate (63) on a side facing the positioning module (4).

9. The tooling positioning mechanism for line-to-line laser welding according to claim 1, characterized in that: The reduced diameter channel (630) includes a horn inlet and a cylindrical through hole, the horn inlet faces the positioning module (4), the radial size of the cylindrical through hole is adapted to the radial size of the small-sized cylinder of the reduced diameter structure of the motor lead, so that only the small-sized cylinder of the reduced diameter structure of the motor lead can be inserted, and the connection between the horn inlet and the cylindrical through hole is used to abut the large-sized cylinder of the reduced diameter structure of the motor lead.

10. The tooling positioning mechanism for line-to-line laser welding according to claim 1, characterized in that: The loading tool (3) further comprises a base, wherein the loading tool (3) comprises at least one material (2) mounting point, each of the material (2) mounting points being used to mount one material (2), and a plurality of magnets are arranged around each of the material (2) mounting points on the loading tool (3) to prevent the material (2) from warping upward.

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