Automobile body welding electrode cap selecting device

Abstract

The utility model discloses a kind of automobile body welding electrode cap material selecting device, including selection disc, the selection disc includes material storage cavity, conveying track, first reversing mechanism, secondary guide mechanism and height selection mechanism, first reversing mechanism includes the first reversing track and the second reversing track that are sequentially arranged, the lower end of conveying track is located in material storage cavity, the upper end height of conveying track is less than the upper end height of first reversing track, the lower end of first reversing track is located above secondary guide mechanism. The automobile body welding electrode cap material selecting device of the utility model sets ladder material selecting mechanism, utilizes the height difference of two reversing tracks, realizes flat lay screening, simultaneously cooperate secondary guide mechanism and height selection mechanism, and electrode cap screening qualified rate can be improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of automated welding equipment. Specifically, this utility model relates to a material selection device for electrode caps used in automotive body welding. Background Technology

[0002] The electrode cap sorting device for automotive body welding is used to screen electrode caps from resistance welding machines, selecting qualified electrode caps. Used electrode caps are irregularly shaped materials. The main component of the sorting device is the sorting disc. However, existing sorting discs suffer from structural design flaws, leading to the following defects during use:

[0003] 1. Inaccurate control of the electrode cap orientation leads to insufficient orientation accuracy of the electrode cap (approximately 65% ​​pass rate);

[0004] 2. It is impossible to simultaneously screen electrode caps of different heights and sizes;

[0005] 3. Manual secondary screening is required, which affects production efficiency (an average of 2 hours of downtime per shift).

[0006] Chinese Patent Application No. 201821965186.4 discloses an automatic sorting and stamping forming machine for electrode caps, which relates to the field of mechanical equipment technology, specifically an automatic sorting and stamping forming machine for electrode caps. It includes a blank selection tray, a finished product outlet, a blank identification mechanism, a feeding detection mechanism, a pressing die, a high-thrust, low-stroke booster cylinder, a displacement sensor, a solid lubricant pusher, a main base, a part ejection mechanism, a waste product outlet, and a pressure sensor. The blank selection tray is connected to the blank identification mechanism, which is mounted on the main base. The feeding detection mechanism is mounted on the pressing die, and the high-thrust, low-stroke booster cylinder is located at the upper end of the main base.

[0007] This invention provides a material selection device for automotive body welding electrode caps, and specifically addresses how to improve the electrode cap screening pass rate. Utility Model Content

[0008] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a material selection device for automotive body welding electrode caps, with the purpose of improving the electrode cap screening pass rate.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a material selection device for automotive body welding electrode caps, including a selection plate. The selection plate includes a storage cavity, a conveying track for receiving electrode caps from the storage cavity, a primary reversing mechanism for receiving electrode caps from the conveying track and performing a first-stage screening of the electrode caps, a secondary guiding mechanism for receiving electrode caps from the primary reversing mechanism and performing a second-stage screening of the electrode caps, and a height selection mechanism for receiving electrode caps from the secondary guiding mechanism and screening electrode caps of different heights. The primary reversing mechanism includes a first reversing track and a second reversing track arranged sequentially. The lower end of the conveying track is located in the storage cavity, the upper end of the conveying track is lower than the upper end of the first reversing track, and the lower end of the first reversing track is located above the secondary guiding mechanism.

[0010] The first and second reversing tracks are arc-shaped structures.

[0011] The height difference h1 between the second reversing track and the secondary guide mechanism is 0.7H, where H is the height of the electrode cap.

[0012] The distance between the second reversing track and the secondary guide mechanism is L = 1.2D, where D is the diameter of the electrode cap.

[0013] The secondary guide mechanism includes a first guide rail, a second guide rail, and a third guide rail arranged in sequence, wherein the width of the second guide rail is smaller than the width of the first guide rail and the third guide rail.

[0014] The secondary guide mechanism also includes a first guide sidewall connected to the first guide rail, the second guide rail and the third guide rail, and the first guide sidewall has an arc-shaped structure.

[0015] The height selection mechanism includes a fourth guide rail and a second guide sidewall connected to the fourth guide rail. A screening port is provided on the second guide sidewall and is located on one side of the fourth guide rail.

[0016] One end of the fourth guide rail is connected to one end of the third guide rail.

[0017] The second guide sidewall has an arc-shaped structure, and one end of the second guide sidewall is connected to one end of the first guide sidewall.

[0018] The selection plate is connected to the guide groove, and the feed end of the guide groove faces the fourth guide rail.

[0019] This utility model discloses a material selection device for automotive body welding electrode caps. It features a stepped selection mechanism that utilizes the height difference between two reversing tracks to achieve flat screening. This facilitates control of the electrode cap orientation, improving screening accuracy. Furthermore, in conjunction with a secondary guiding mechanism and a height selection mechanism, it enhances the electrode cap screening pass rate. Moreover, it reduces repetitive manual labor, improves overall efficiency, and allows for larger-scale electrode cap selection. Attached Figure Description

[0020] This manual includes the following figures, which illustrate the following:

[0021] Figure 1 This is a schematic diagram of the selection panel;

[0022] Figure 2 This is a top view of the selection panel;

[0023] The markings in the diagram are as follows: 1. Storage chamber; 2. Conveying track; 3. First reversing track; 4. Second reversing track; 5. First guide track; 6. Second guide track; 7. Third guide track; 8. First guide sidewall; 9. Fourth guide track; 10. Second guide sidewall; 11. Guide groove; 12. Base plate; 13. Outer plate; 14. Screening port. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0025] It should be noted that in the following embodiments, the terms "first", "second", "third" and "fourth" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution, but are merely for the convenience of description.

[0026] like Figure 1 and Figure 2As shown, this utility model provides a material selection device for automotive body welding electrode caps, including a base and a selection plate. An electromagnetic vibrator is installed on the base and connected to the selection plate. The vibration frequency of the electromagnetic vibrator is 30-50Hz. The selection plate includes a storage chamber 1, a conveying track 2 for receiving electrode caps from the storage chamber 1, a primary reversing mechanism for receiving electrode caps from the conveying track 2 and performing a first-stage screening of the electrode caps, a secondary guiding mechanism for receiving electrode caps from the primary reversing mechanism and performing a second-stage screening of the electrode caps, and a height selection mechanism for receiving electrode caps from the secondary guiding mechanism and screening electrode caps of different heights. The primary reversing mechanism includes a first reversing track 3 and a second reversing track 4 arranged sequentially. The lower end of the conveying track 2 is located in the storage chamber 1, the upper end of the conveying track 2 is lower than the upper end of the first reversing track 3, and the lower end of the first reversing track 3 is located above the upper end of the second reversing track 4.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, the selection panel also includes a base plate 12, an inner shroud plate, and an outer shroud plate 13. The inner shroud plate and the outer shroud plate 13 are cylindrical and coaxially arranged. The diameter of the inner shroud plate is smaller than the diameter of the outer shroud plate 13. A collection groove is formed between the inner shroud plate and the outer shroud plate 13. The lower ends of the inner shroud plate and the outer shroud plate 13 are fixedly connected to the base plate 12. The base plate 12 is circular. The storage cavity 1 is formed by the inner shroud plate and the base plate 12. The conveying track 2 is located in the inner cavity of the inner shroud plate. The first reversing track 3, the second reversing track 4, the secondary guide mechanism, and the height selection mechanism are located in the inner cavity of the outer shroud plate 13. The conveying track 2 is fixedly connected to the inner wall of the inner shroud plate. The conveying track 2 has a spiral structure. During operation, irregular materials (used electrode caps) are poured into the storage chamber 1 of the selection tray. The high-frequency vibration force generated by the electromagnetic vibrator causes the selection tray to vibrate, which evenly transports the electrode caps to the track conveyor 2. The electrode caps rise along the conveyor track 2, and the conveyor track 2 guides the electrode caps to the first reversing track 3 above.

[0028] like Figure 1 and Figure 2As shown, the first reversing track 3 and the second reversing track 4 are generally arc-shaped structures. The axes of the first reversing track 3 and the second reversing track 4 are parallel to the axis of the outer plate 13 and are both vertical lines. The first reversing track 3 and the second reversing track 4 are inclined downwards. The cross-section of the first reversing track 3 (the cross-section refers to the cross-section perpendicular to the length direction of the first reversing track 3) is arc-shaped or U-shaped, and the cross-section of the second reversing track 4 (the cross-section refers to the cross-section perpendicular to the length direction of the second reversing track 4) is arc-shaped or U-shaped. Arc-shaped grooves are formed inside the first reversing track 3 and the second reversing track 4. There is a height difference between the upper end of the conveying track 2 and the upper end of the first reversing track 3. Utilizing the principle that the electrode cap is top-heavy (the head end is solid) and bottom-light (the bottom part is hollow), the electrode cap rolls down the conveying track 2 into the arc-shaped groove of the first reversing track 3. Under the guidance of the first reversing track 3, the electrode cap will change direction and switch to a lying posture (at this time, the head end or bottom part of the electrode cap is facing forward).

[0029] like Figure 1 and Figure 2 As shown, the secondary guiding mechanism includes a first guide rail 5, a second guide rail 6, and a third guide rail 7 arranged sequentially, and a first guide sidewall 8 fixedly connected to the first guide rail 5, the second guide rail 6, and the third guide rail 7. The width of the second guide rail 6 is smaller than the width of the first guide rail 5 and the third guide rail 7, and the width of the second guide rail 6 is smaller than the diameter of the electrode cap, while the width of the first guide rail 5 and the third guide rail 7 is larger than the diameter of the electrode cap. The first guide rail 5, the second guide rail 6, and the third guide rail 7 are generally arc-shaped. The upper end of the first guide rail 5 is aligned with the lower end of the second reversing rail 4, and the width direction of the first guide rail 5, the second guide rail 6, and the third guide rail 7 is perpendicular to the axis of the outer plate 13. The first guide sidewall 8 is also arc-shaped, and its axis is parallel to the axis of the outer plate 13. The inner edges of the first guide rail 5, the second guide rail 6, and the third guide rail 7 are fixedly connected to the lower edge of the first guide sidewall 8. The first guide sidewall 8 is inclined. The distance between the upper end of the first guide sidewall 8 and the axis of the outer plate 13 is less than the distance between the lower end of the first guide sidewall 8 and the axis of the outer plate 13. The first guide sidewall 8 contacts the electrode cap and guides the electrode cap to move.

[0030] There is a height difference between the lower end of the second reversing track 4 and the upper end of the first guide track 5. A step is formed between the second reversing track 4 and the first guide track 5. When the electrode cap enters the first guide track 5 from the second reversing track 4, the step is used to change the electrode cap into an upright position (at this time, the top of the electrode cap is on top and the bottom is on the bottom). The bottom surface of the bottom of the electrode cap contacts the top surface of the first guide track 5.

[0031] In this embodiment, the height difference h1 between the second reversing track 4 and the first guide track 5 is 0.7H, where H is the height of the electrode cap. The distance L between the second reversing track 4 and the first guide track 5 is 1.2D, where D is the diameter of the electrode cap. The surface roughness Ra of the first reversing track 3, the second reversing track 4, and the first guide track 5 is ≤0.8μm.

[0032] The electrode cap enters the first guide track 5, and then the second guide track 6. The width of the second guide track 6 decreases, and the electrode caps that have not changed to an upright position (generally, the electrode caps that are still in a lying position) will fall into the collection tank below. The electrode caps in an upright position rely on the inwardly inclined first guide side wall 8, and are not easy to fall off, so the electrode caps that have not changed to an upright position can be screened out. Finally, the electrode caps in an upright position continue to move along the third guide track 7 to the height selection mechanism for further screening.

[0033] like Figure 1 and Figure 2 As shown, the height selection mechanism includes a fourth guide rail 9 and a second guide sidewall 10 connected to the fourth guide rail 9. A screening port 14 is provided on the second guide sidewall 10, located on one side of the fourth guide rail 9. One end of the fourth guide rail 9 is fixedly connected to one end of the third guide rail 7. The width of the fourth guide rail 9 is approximately the same as the width of the third guide rail 7, and the width direction of the fourth guide rail 9 is perpendicular to the axis of the outer plate 13. The second guide sidewall 10 has an arc-shaped structure, and the axis of the first guide sidewall 8 is parallel to the axis of the outer plate 13. The inner edge of the fourth guide rail 9 is fixedly connected to the lower edge of the second guide sidewall 10. The second guide sidewall 10 is inclined, with one end connected to one end of the first guide sidewall 8. The distance between the upper end of the second guide sidewall 10 and the axis of the outer plate 13 is less than the distance between the lower end of the second guide sidewall 10 and the axis of the outer plate 13. The second guide sidewall 10 contacts the electrode cap, guiding the electrode cap to move.

[0034] like Figure 1 As shown, the screening port 14 is a through hole extending along the thickness direction of the second guide sidewall 10. The screening port 14 is rectangular. The height of the screening port 14 (the distance between the upper and lower ends of the screening port 14) is less than the height of the qualified electrode cap, and the height of the unqualified electrode cap is less than the height of the screening port 14. The unqualified electrode cap has insufficient height and a shorter lifespan. When an electrode cap in an upright position passes through the screening port 14, the unqualified electrode cap will enter the screening port 14 and fall into the collection tank below.

[0035] like Figure 1 and Figure 2As shown, the selection plate is connected to the guide groove 11. The feed end of the guide groove 11 faces the fourth guide rail 9. The qualified electrode caps are screened out and enter the clamping body through the guide groove 11.

[0036] like Figure 1 and Figure 2 As shown, the first reversing track 3, the second reversing track 4, the first guide track 5, the second guide track 6, the third guide track 7, and the fourth guide track 9 are arranged sequentially along the circumference between the inner and outer panels 13. During the screening process, when passing through the first-level step, the height difference h1 = 0.7H is used to achieve flat screening (screening efficiency reaches 98.5%); in the second-level guide, the half-track structure (i.e., the second guide track 6) causes the non-positive discharge electrode caps to fall off (rejection rate 17-22%).

[0037] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A material selection device for welding electrode caps on automobile bodies, comprising a selection panel, characterized in that: The selection tray includes a storage chamber, a conveying track for receiving electrode caps from the storage chamber, a primary reversing mechanism for receiving electrode caps from the conveying track and performing a primary screening of the electrode caps, a secondary guiding mechanism for receiving electrode caps from the primary reversing mechanism and performing a secondary screening of the electrode caps, and a height selection mechanism for receiving electrode caps from the secondary guiding mechanism and screening electrode caps of different heights. The primary reversing mechanism includes a first reversing track and a second reversing track arranged sequentially. The lower end of the conveying track is located in the storage chamber, the upper end of the conveying track is lower than the upper end of the first reversing track, and the lower end of the first reversing track is located above the secondary guiding mechanism.

2. The automotive body welding electrode cap material selection device according to claim 1, characterized in that: The first and second reversing tracks are arc-shaped structures.

3. The automotive body welding electrode cap material selection device according to claim 1, characterized in that: The height difference h1 between the second reversing track and the secondary guide mechanism is 0.7H, where H is the height of the electrode cap.

4. The automotive body welding electrode cap material selection device according to claim 3, characterized in that: The distance between the second reversing track and the secondary guide mechanism is L = 1.2D, where D is the diameter of the electrode cap.

5. The automotive body welding electrode cap material selection device according to any one of claims 1 to 4, characterized in that: The secondary guide mechanism includes a first guide rail, a second guide rail, and a third guide rail arranged in sequence, wherein the width of the second guide rail is smaller than the width of the first guide rail and the third guide rail.

6. The automotive body welding electrode cap material selection device according to claim 5, characterized in that: The secondary guide mechanism also includes a first guide sidewall connected to the first guide rail, the second guide rail and the third guide rail, and the first guide sidewall has an arc-shaped structure.

7. The automotive body welding electrode cap material selection device according to claim 6, characterized in that: The height selection mechanism includes a fourth guide rail and a second guide sidewall connected to the fourth guide rail. A screening port is provided on the second guide sidewall and is located on one side of the fourth guide rail.

8. The automotive body welding electrode cap material selection device according to claim 7, characterized in that: One end of the fourth guide rail is connected to one end of the third guide rail.

9. The material selection device for automotive body welding electrode caps according to claim 7, characterized in that: The second guide sidewall has an arc-shaped structure, and one end of the second guide sidewall is connected to one end of the first guide sidewall.

10. The automotive body welding electrode cap material selection device according to claim 7, characterized in that: The selection plate is connected to the guide groove, and the feed end of the guide groove faces the fourth guide rail.

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