Automatic welding equipment for metal parts

Abstract

The present invention relates to the technical field of welding equipment, and specifically to an automatic welding equipment for metal parts, comprising a welding body and a welding head, and also comprising: a cup holder, wherein the cup holder is arranged on the welding body, a cup handle holder, wherein the cup handle holder is arranged on the welding body, and the cup handle holder is in a bent structure near the cup holder; a circulating feeding unit, wherein the circulating feeding unit is arranged on the welding body, and a pressing driving unit, wherein the pressing driving unit is arranged on the welding body and connected with the cup holder and the circulating feeding unit. The automatic welding equipment for metal parts enables workers to significantly improve the automation level of the welding process when welding stainless steel cups and cup handles by integrating the cup holder and the cup handle holder, combining the circulating feeding unit and the pressing driving unit, thereby simplifying manual operation steps, ensuring accurate positioning of the stainless steel cup handle, reducing human errors, achieving efficient and continuous feeding and welding, and significantly improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to automatic welding equipment for metal parts. Background Art

[0002] Stainless steel cups are a common tableware, usually composed of a cup body and a cup handle. During processing, the cup body and the cup handle are stamped separately, and then the cup body and the cup handle are welded. We found the following problems in actual use:

[0003] 1. Difficulty in manual placement and fixation: During the spot welding process of the stainless steel cup and the cup handle, the placement and fixation of the cup handle requires manual operation;

[0004] 2. Low production efficiency: Manual welding is not only time-consuming, but also difficult to achieve large-scale automated production, resulting in low production efficiency.

[0005] The main reasons for the above problems are:

[0006] 1. Human operation error: Inaccurate positioning caused by human factors, such as slight shaking of fingers or errors in visual judgment, may affect the placement of the cup handle;

[0007] 2. Insufficient fixing device: Lack of effective automatic fixing device makes the cup handle easy to move or deflect during welding, resulting in unstable welding quality;

[0008] 3. Manual operation is slow: Manual welding requires manual adjustment of the position of the cup handle, which increases the production cycle.

[0009] In summary, the difficulty in manual placement and fixation and low production efficiency during the welding process of stainless steel cups and cup handles are mainly due to manual operation errors and insufficient fixing devices, as well as the limitations of the manual welding method itself. For this reason, we propose an automatic welding equipment for metal parts. Summary of the invention

[0010] A technical problem to be solved by this application is: how to design an automatic welding device for metal parts that can automatically drop the handle of a stainless steel cup after it is placed.

[0011] In order to solve the above technical problems, the embodiment of the present application provides a metal part automatic welding device, including a welding body and a welding head, and also includes:

[0012] A cup holder, which is arranged on the welded body and is used to place stainless steel cups;

[0013] A cup handle rack, which is arranged on the welded body and is used to place a stainless steel cup handle, and the cup handle rack is in a bent structure near the cup holder;

[0014] A circulating feeding unit, which is arranged on the welding body and is used to control the stainless steel cup handles arranged on the cup handle rack to move toward one side of the cup rack;

[0015] The push-type driving unit is arranged on the welding body and is connected with the cup holder and the circulating feeding unit. When the staff places the stainless steel cup on the cup holder and pushes it inward, the circulating feeding unit can be driven by the push-type driving unit to work and place the stainless steel cup handle on the stainless steel cup.

[0016] In some embodiments, the press-type drive unit includes a fixed box arranged on the welding body, a positioning ring frame is arranged on the fixed box, a driving rack is arranged on the cup holder, a driving shaft is rotatably arranged on the positioning ring frame, a transmission assembly is arranged inside the positioning ring frame, which is used to drive the driving shaft to rotate by shifting the driving rack, and a reset spring is arranged between the positioning ring frame and the cup holder, which is used to drive the cup holder to reset.

[0017] In some embodiments, the transmission assembly includes a sleeve rotatably mounted on a positioning ring frame, a one-way transmission member is disposed between the drive rack and the sleeve, and is used to drive the sleeve to rotate when the drive rack approaches the positioning ring frame, and the sleeve does not rotate when it is away from the positioning ring frame, and a stroke control member is disposed between the sleeve and the drive shaft, and is used to control the rotating shaft to rotate one circle when the drive rack moves once.

[0018] In some embodiments, the one-way transmission member includes a fixed shaft rotatably set on a positioning ring frame, a driving gear used in conjunction with a driving rack is set on the fixed shaft, a positioning plate is set on the fixed shaft, a connecting column is set at the end of the positioning plate, a ratchet is rotatably set at the end of the connecting column, a torsion spring is sleeved on the outer side of the connecting column, both ends of the torsion spring are respectively connected to the ratchet and the positioning plate, and a ratchet that cooperates with the ratchet is set on the inner side of the shaft sleeve.

[0019] In some embodiments, the stroke control member includes a transmission gear disposed on the outside of the sleeve, and a fixed gear used in conjunction with the transmission gear is disposed on the drive shaft.

[0020] In some embodiments, the circulating feeding unit includes a mounting frame arranged on a fixed box, a reversing member is arranged between the drive shaft and the mounting frame for adjusting the rotation direction of the drive shaft, and a swinging member is arranged on the mounting frame for driving the stainless steel cup handle to move toward the side of the cup holder.

[0021] In some embodiments, the reversing member includes a transmission shaft rotatably mounted on a mounting frame, and the drive shaft and the transmission shaft are respectively provided with bevel gears for use in conjunction with each other.

[0022] In some embodiments, the swinging member includes two rotating shafts respectively rotatably arranged on the mounting frame, any rotating shaft is connected to the transmission shaft, a rotating rod is arranged on the two rotating shafts, a loading rack is rotatably arranged at the ends of the two rotating rods, pulleys are respectively arranged on the two rotating shafts, and a synchronous belt is arranged between the two pulleys.

[0023] In some embodiments, the cup handle rack is open on the side away from the cup holder, and a limiting guide plate is provided on the side close to the cup holder, and a welding groove is provided on the limiting guide plate for the welding head to contact the connection between the stainless steel cup handle and the stainless steel cup.

[0024] In some embodiments, a telescopic rod is provided between the positioning ring frame and the cup holder, and a limiting rod is provided on the positioning ring frame.

[0025] The present invention has at least the following beneficial effects:

[0026] 1. By integrating the cup holder and the cup handle holder, combining the circulating feeding unit and the pressing drive unit, the automation level of the welding process is significantly improved and the manual operation steps are simplified;

[0027] 2. The precision parts in the push-type drive unit, such as the drive rack, drive shaft and transmission components, ensure the precise positioning of the stainless steel cup handle and reduce human errors. The use of one-way transmission parts and stroke control parts further ensures the precise control of the feeding process;

[0028] 3. The coordination between the circulating feeding unit and the swinging part realizes efficient and continuous feeding and welding, which significantly improves production efficiency. At the same time, the equipment has a compact structure and the components are closely matched, which enhances the reliability and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 For the present invention Figure 1 Schematic diagram of the structure after the welding head moves;

[0031] Figure 3 For the present invention Figure 1 Schematic diagram of the local cross-section structure;

[0032] Figure 4 For the present invention Figure 3 Another structural diagram;

[0033] Figure 5 It is a schematic diagram of the structure of the push-type drive unit of the present invention;

[0034] Figure 6 For the present invention Figure 5Schematic diagram of the enlarged structure of the middle A area;

[0035] Figure 7 This is a schematic diagram of the positioning ring frame and cup holder structure of the present invention;

[0036] Figure 8 It is a schematic diagram of a partial cross-sectional structure of a push-type drive unit of the present invention;

[0037] Figure 9 For the present invention Figure 8 Another structural diagram;

[0038] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure of the middle B area;

[0039] Figure 11 For the present invention Figure 8 Schematic diagram of the floor plan structure;

[0040] Figure 12 This is a schematic diagram of the structure of the circulating feeding unit of the present invention;

[0041] Figure 13 For the present invention Figure 12 Schematic diagram of the local cross-section structure;

[0042] Figure 14 This is a schematic diagram of the installation structure of the telescopic rod and the limiting rod in Example 2 of the present invention.

[0043] In the figure: 1. welding body; 2. welding head; 3. push-type drive unit; 31. fixed box; 32. positioning ring frame; 33. driving rack; 34. driving shaft; 35. reset spring; 4. transmission assembly; 41. bushing; 5. one-way transmission member; 51. fixed shaft; 52. driving gear; 53. positioning plate; 54. connecting column; 55. ratchet; 56. torsion spring; 57. ratchet; 6. stroke control member; 61. transmission gear; 62. fixed gear; 7. circulating feeding unit; 71. mounting frame; 8. reversing member; 81. transmission shaft; 82. bevel gear; 9. swing member; 91. rotating shaft; 92. rotating rod; 93. loading rack; 94. pulley; 95. synchronous belt; 10. cup holder; 11. cup handle holder; 12. limit guide plate; 13. welding groove; 14. telescopic rod; 15. limit rod. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Example 1: Please refer to Figures 1 - 13 , the present invention provides a technical solution:

[0046] An automatic welding device for metal parts includes a welding body 1 and a welding head 2, wherein the spot welding method can adopt the spot welding method in the announcement number CN109352154B. According to the attached drawings of the specification, in the scheme, the welding head 2 is a movable structure, so as to facilitate the removal of the stainless steel cup after welding. This displacement is a common existing technology and will not be described in detail here. A foot switch is provided at the bottom of the welding body 1 for controlling the operation of the welding head 2, which is a common existing technology and will not be described in detail here. It also includes:

[0047] A cup holder 10, which is disposed on the welding body 1 and is used to place stainless steel cups;

[0048] A cup handle frame 11, which is disposed on the welded body 1 and is used to place a stainless steel cup handle. The cup handle frame 11 is bent near the cup holder 10;

[0049] A circulating feeding unit 7, which is disposed on the welding body 1 and is used to control the stainless steel cup handles arranged on the cup handle rack 11 to move toward the cup rack 10;

[0050] The push-type driving unit 3 is arranged on the welding body 1 and is connected with the cup holder 10 and the circulating feeding unit 7. When the staff puts the stainless steel cup on the cup holder 10 and pushes it inward, the circulating feeding unit 7 can be driven by the push-type driving unit 3 to work and put the stainless steel cup handle on the stainless steel cup;

[0051] The push-type driving unit 3 includes a fixed box 31 arranged on the welding body 1, a positioning ring frame 32 is arranged on the fixed box 31, a driving rack 33 is arranged on the cup holder 10, a driving shaft 34 is rotatably arranged on the positioning ring frame 32, a transmission assembly 4 is arranged inside the positioning ring frame 32, and is used to drive the driving shaft 34 to rotate by shifting the driving rack 33, and a reset spring 35 is arranged between the positioning ring frame (32) and the cup holder 10, and is used to drive the cup holder 10 to reset;

[0052] The transmission assembly 4 includes a shaft sleeve 41 rotatably arranged on the positioning ring frame 32, a one-way transmission member 5 is arranged between the driving rack 33 and the shaft sleeve 41, and is used to drive the shaft sleeve 41 to rotate when the driving rack 33 approaches the positioning ring frame 32, and the shaft sleeve 41 does not rotate when it is away from the positioning ring frame 32, and a stroke control member 6 is arranged between the shaft sleeve 41 and the driving shaft 34, and is used to control the rotating shaft 91 to rotate one circle when the driving rack 33 moves once;

[0053] The one-way transmission member 5 includes a fixed shaft 51 rotatably arranged on the positioning ring frame 32, a driving gear 52 matched with the driving rack 33 is arranged on the fixed shaft 51, a positioning plate 53 is arranged on the fixed shaft 51, a connecting column 54 is arranged at the end of the positioning plate 53, a ratchet 55 is rotatably arranged at the end of the connecting column 54, a torsion spring 56 is sleeved on the outer side of the connecting column 54, and the two ends of the torsion spring 56 are respectively connected to the ratchet 55 and the positioning plate 53, and a ratchet 57 matched with the ratchet 55 is arranged on the inner side of the shaft sleeve 41;

[0054] The travel control member 6 includes a transmission gear 61 disposed outside the shaft sleeve 41, and a fixed gear 62 used in conjunction with the transmission gear 61 is disposed on the drive shaft 34. The number of teeth of the transmission gear 61 is greater than the number of teeth of the fixed gear 62.

[0055] The circulating feeding unit 7 includes a mounting frame 71 disposed on the fixed box 31, a reversing member 8 is disposed between the driving shaft 34 and the mounting frame 71, and is used to adjust the rotation direction of the driving shaft 34, and a swinging member 9 is disposed on the mounting frame 71, and is used to drive the stainless steel cup handle to move toward the cup holder 10;

[0056] The reversing member 8 includes a transmission shaft 81 rotatably mounted on the mounting frame 71, and the driving shaft 34 and the transmission shaft 81 are respectively provided with bevel gears 82 for use in conjunction with each other;

[0057] The swing member 9 includes two rotating shafts 91 rotatably disposed on the mounting frame 71, and any rotating shaft 91 is connected to the transmission shaft 81. A rotating rod 92 is disposed on each of the two rotating shafts 91, and a loading frame 93 is rotatably disposed at the ends of the two rotating rods 92. A pulley 94 is disposed on each of the two rotating shafts 91, and a synchronous belt 95 is disposed between the two pulleys 94.

[0058] The cup handle frame 11 is open at the side away from the cup holder 10 and is provided with a limiting guide plate 12 at the side close to the cup holder 10. The limiting guide plate 12 is provided with a welding groove 13 for the welding head 2 to contact the connection between the stainless steel cup handle and the stainless steel cup.

[0059] When in use, the staff puts the stainless steel cup on the cup holder 10 and pushes it inward. At this time, the driving rack 33 moves with the cup holder 10, and cooperates with the driving gear 52 in the one-way transmission member 5 to drive the ratchet 55 to rotate around the connecting column 54. The ratchet 55 drives the ratchet wheel 57 and the shaft sleeve 41 to rotate. Due to the action of the torsion spring 56, the ratchet 55 and the ratchet wheel 57 realize one-way transmission.

[0060] When the sleeve 41 rotates, the transmission gear 61 on its outer side meshes with the fixed gear 62 on the drive shaft 34. Since the number of teeth of the transmission gear 61 is set to be greater than the number of teeth of the fixed gear 62, it can ensure that the drive shaft 34 rotates one circle. The drive shaft 34 is driven by the bevel gear 82 in the reversing member 8, and the transmission shaft 81 is driven to rotate after the rotation direction is changed.

[0061] The transmission shaft 81 is connected to any rotating shaft 91 in the swinging member 9, and the rotating shaft 91 drives the loading rack 93 to swing through the rotating rod 92. At the same time, the pulleys 94 and the synchronous belt 95 on the two rotating shafts 91 ensure that the loading rack 93 swings synchronously, so as to move the stainless steel cup handle on the cup handle rack 11 to the side of the cup rack 10 and accurately place it on the stainless steel cup;

[0062] At this time, the welding head 2, under the control of the foot switch at the bottom of the welding body 1, spot welds the stainless steel cup and the cup handle. After the welding is completed, the reset member resets the cup holder 10 to prepare for the next operation. During the whole process, the welding head 2 is a movable structure, which is convenient for taking out the stainless steel cup after the welding is completed.

[0063] Example 2: Please refer to Figure 14 , the present invention provides a technical solution:

[0064] Different from Example 1, a telescopic rod 14 is provided between the positioning ring frame 32 and the cup holder 10, and a limiting rod 15 is provided on the positioning ring frame 32. The setting of the telescopic rod 14 ensures that the cup holder 10 can be radially displaced and adjusted to avoid the situation of pressing misalignment, which affects the adjustment of the cup holder 10 and the driving rack 33. The setting of the limiting rod 15 ensures the spacing between the cup holder 10 and the driving rack 33 to avoid insufficient or excessive displacement.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0066] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A metal parts automatic welding device, comprising a welding body (1) and a welding head (2), characterized in that: Also included are: A cup holder (10), the cup holder (10) being arranged on the welded body (1) and being used for placing stainless steel cups; A cup handle rack (11), the cup handle rack (11) being arranged on the welded body (1) and used for placing a stainless steel cup handle, and the cup handle rack (11) is in a bent structure at a side close to the cup holder (10); A circulating feeding unit (7), the circulating feeding unit (7) being arranged on the welding body (1) and used for controlling the stainless steel cup handles arranged on the cup handle rack (11) to move toward one side of the cup rack (10); A push-type drive unit (3) is provided on the welding body (1) and is connected to the cup holder (10) and the circulating feeding unit (7). When a worker places a stainless steel cup on the cup holder (10) and pushes it inward, the circulating feeding unit (7) can be driven by the push-type drive unit (3) to work, so that the stainless steel cup is placed on the stainless steel cup. The push-type drive unit (3) comprises a fixed box (31) provided on the welding body (1), a positioning ring frame (32) provided on the fixed box (31), and a positioning ring frame (32) provided on the cup holder (10). A driving rack (33) is arranged on the positioning ring frame (32); a driving shaft (34) is rotatably arranged on the positioning ring frame (32); a transmission assembly (4) is arranged inside the positioning ring frame (32) for driving the driving shaft (34) to rotate by shifting the driving rack (33); a reset spring (35) is arranged between the positioning ring frame (32) and the cup holder (10) for driving the cup holder (10) to reset; the transmission assembly (4) comprises a shaft sleeve (41) rotatably arranged on the positioning ring frame (32); a one-way transmission member (5) is arranged between the driving rack (33) and the shaft sleeve (41) for When the driving rack (33) approaches the positioning ring frame (32), the shaft sleeve (41) is driven to rotate, and when it is away from the shaft sleeve (41), the shaft sleeve (41) does not rotate. A stroke control member (6) is arranged between the shaft sleeve (41) and the driving shaft (34), and is used to control the rotating shaft (91) to rotate one circle when the driving rack (33) moves once. The one-way transmission member (5) includes a fixed shaft (51) rotatably arranged on the positioning ring frame (32), and a driving gear (52) used in conjunction with the driving rack (33) is arranged on the fixed shaft (51). A positioning plate (53) is arranged on the fixed shaft (51). The end of the positioning plate (53) is provided with a connecting column (54), and the end of the connecting column (54) is rotatably provided with a ratchet (55). The outer side of the connecting column (54) is provided with a torsion spring (56), and the two ends of the torsion spring (56) are respectively connected to the ratchet (55) and the positioning plate (53). The inner side of the shaft sleeve (41) is provided with a ratchet (57) matched with the ratchet (55). The stroke control member (6) includes a transmission gear (61) arranged on the outer side of the shaft sleeve (41), and the driving shaft (34) is provided with a fixed gear (62) used in conjunction with the transmission gear (61).

2. The automatic metal welding equipment according to claim 1, characterized in that: The circulating feeding unit (7) comprises a mounting frame (71) arranged on a fixed box (31); a reversing member (8) is arranged between the driving shaft (34) and the mounting frame (71) for adjusting the rotation direction of the driving shaft (34); and a swinging member (9) is arranged on the mounting frame (71) for driving the stainless steel cup handle to move toward the cup holder (10).

3. The automatic metal welding equipment according to claim 2, characterized in that: The reversing member (8) comprises a transmission shaft (81) rotatably mounted on a mounting frame (71), and bevel gears (82) for use in conjunction with each other are respectively mounted on the driving shaft (34) and the transmission shaft (81).

4. The automatic metal welding equipment according to claim 3, characterized in that: The swing member (9) comprises two rotating shafts (91) respectively rotatably arranged on the mounting frame (71), any of the rotating shafts (91) is connected to the transmission shaft (81), a rotating rod (92) is arranged on the two rotating shafts (91), a loading frame (93) is rotatably arranged at the ends of the two rotating rods (92), a pulley (94) is respectively arranged on the two rotating shafts (91), and a synchronous belt (95) is arranged between the two pulleys (94).

5. The automatic metal welding equipment according to claim 4, characterized in that: The cup handle frame (11) is open on the side away from the cup holder (10), and a limiting guide plate (12) is provided on the side close to the cup holder (10). A welding groove (13) is provided on the limiting guide plate (12) for the welding head (2) to contact the connection between the stainless steel cup handle and the stainless steel cup.

6. The automatic metal welding equipment according to claim 1, characterized in that: A telescopic rod (14) is arranged between the positioning ring frame (32) and the cup holder (10), and a limiting rod (15) is arranged on the positioning ring frame (32).

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