Welding equipment for automobile parts production

Abstract

The present invention discloses a welding device for automobile parts production in the field of automobile parts processing technology. The device comprises a base, an oil delivery system disposed on the base, a drive unit disposed on the base, the oil delivery system being connected to the drive unit, multiple positioning brackets connected to the sides of the drive unit, and a docking component laterally plugged into the sides of the drive unit. The device can perform a centering operation on the screw hole and the sheet metal hole during the docking process between the nut and the sheet metal part, ensuring that the centers of the two docking parts are on the same axis, effectively avoiding misalignment and deflection, improving docking accuracy, and ensuring welding results.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts processing, in particular to welding equipment for automobile parts production. Background Art

[0002] Auto parts are the parts used for assembly, among which the sheet metal parts of automobiles are the most commonly used parts in automobile manufacturing and maintenance. The connection methods between sheet metal parts and other parts can be divided into plug-in, welding, threaded connection, etc. according to needs. Sometimes it is necessary to use welding and threaded connection in combination according to usage requirements. Therefore, when automobile parts (sheet metal parts) are produced, the nuts will be welded to the sheet metal parts, and the screw holes of the nuts will be aligned and connected with the holes of the sheet metal parts, so as to facilitate subsequent threaded connection operations with other parts.

[0003] However, in actual working processes, the existing welding tooling structure is relatively simple, and there is a lack of measures to align the nut holes with the holes of the sheet metal parts, resulting in misalignment deviations in the holes of the two during welding, which seriously affects the welding effect. At the same time, sheet metal parts mostly exist in irregular shapes, so most of the tooling structures in the existing technology cannot effectively limit and fix the sheet metal parts, making it impossible to effectively guarantee the welding effect. Summary of the Invention

[0004] In view of the above-mentioned problems existing in the existing welding equipment for automobile parts production, the present invention proposes a welding equipment for automobile parts production to solve such problems.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A welding device for producing automotive parts, comprising a base, an oil delivery system disposed on the base, a drive unit disposed on the base, the oil delivery system being connected to the drive unit, multiple sets of positioning frames connected to the sides of the drive unit, and a docking component laterally plugged into the sides of the drive unit, the drive unit comprising a fixed cylinder, a cross-shaped limiting frame disposed on the side of the cylinder, a telescopic cavity defined in each branch of the cross-shaped limiting frame, and a transfer cavity defined in the center of the cylinder, the transfer cavity being connected to the telescopic cavity;

[0006] The positioning frame includes a horizontally arranged crossbar, a connecting rod vertically arranged at the end of the crossbar, a telescopic shaft connected to the side of the connecting rod, and the telescopic shaft is inserted into the telescopic cavity, and a limit assembly arranged at the outer end of the crossbar;

[0007] The docking component includes an extension shaft that is laterally inserted into the cylinder body, a push block that is arranged at the outer end of the extension shaft and is in the shape of a cross cone. The four sides of the push block's cross cone extend into the gap between each two sets of positioning frames and are staggered with the positioning frames, as well as a sealing block arranged at the other end of the extension shaft.

[0008] As a preferred embodiment of the welding equipment for automobile parts production described in the present invention, a main cavity is defined inside the cylinder body, and one end of the extension shaft, on which a sealing block is mounted, extends into the main cavity, and the diameter of the sealing block matches the inner diameter of the main cavity. A delivery pipe is defined downwardly at one end of the cylinder body, and the upper and lower ends of the delivery pipe are respectively connected to the transfer cavity and the oil delivery system.

[0009] As a preferred embodiment of the welding equipment for automobile parts production described in the present invention, an auxiliary pipe is laterally connected to the side of the delivery pipe, and one end of the auxiliary pipe is connected to the main cavity. The connection position between the delivery pipe and the auxiliary pipe is a trumpet-shaped structure, and the end with the smaller trumpet mouth is connected to the delivery pipe.

[0010] As a preferred solution of the welding equipment for automobile parts production described in the present invention, the connecting rod is arranged vertically and parallel to the telescopic shaft, and the ends of the two are at the same horizontal height, and the cross bar is laterally connected to the end of the telescopic shaft, and the end of the telescopic shaft is provided with a limit plate that matches the inner diameter of the telescopic cavity.

[0011] As a preferred solution of the welding equipment for automobile parts production described in the present invention, wherein: the outer end of the cross bar is provided with an empty slot for installing a limit assembly, the limit assembly includes a limit block vertically inserted into the outer end of the cross bar, an insertion shaft arranged below the limit block, and the insertion shaft extends downward to the outside of the cross bar, a magnetic block arranged at the lower end of the insertion shaft, and the magnetic block has an isosceles triangle structure, and a spring sleeved on the insertion shaft, and the two ends of the spring respectively abut against the empty slot opened in the cross bar and the upper limit block.

[0012] As a preferred solution of the welding equipment for automobile parts production described in the present invention, a slide rail is provided on the base, a slide table is slidably connected to the slide rail, and the drive unit is fixedly installed on the slide table, and a base is slidably provided on the side of the base.

[0013] As a preferred embodiment of the welding equipment for automobile parts production of the present invention, the oil delivery system includes an oil pump arranged on a base, an oil tank connected to one side of the oil pump, and an oil pipe connected between the oil pump and the drive unit.

[0014] The beneficial effects of the present invention are as follows: during the process of butting the nut and the sheet metal, the screw hole and the sheet metal hole can be centered to ensure that the centers of the two butted parts are on the same axis, effectively avoiding the occurrence of misalignment and deflection, improving the butt joint accuracy, and ensuring the welding effect;

[0015] After centering is completed, the nut and the sheet metal are pushed closer to each other in the horizontal direction, so that the parts to be welded are butted together, which facilitates subsequent welding operations, realizes the automatic docking function, and improves work efficiency;

[0016] During the docking process, there is no need to additionally fix the sheet metal parts. Only the welding position needs to be clamped and fixed, which avoids the problem of being unable to effectively fix special-shaped sheet metal parts, ensures the stability of the connection between the nut and the sheet metal part, and effectively guarantees the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive efforts. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of the welding equipment for producing automobile parts of the present invention.

[0019] Figure 2 This is a schematic structural diagram of the welding equipment for automobile parts production of the present invention, excluding the base and the oil delivery system.

[0020] Figure 3 Welding equipment for automobile parts production of the present invention Figure 2 Enlarged schematic diagram of the mechanism at point A in the middle.

[0021] Figure 4 This is a schematic diagram of the interior structure of the welding equipment for producing automobile parts of the present invention, excluding the base and the oil delivery system.

[0022] Figure 5 This is a left side view of the structure of the welding equipment for producing automobile parts of the present invention, excluding the base and the oil delivery system.

[0023] Figure 6 This is a schematic structural diagram of a driving unit of welding equipment for producing automotive parts according to the present invention.

[0024] Figure 7 This is a schematic structural diagram of a positioning frame for welding equipment used in the production of automotive parts according to the present invention.

[0025] Figure 8 This is a schematic structural diagram of the butting components of the welding equipment for producing automobile parts according to the present invention.

[0026] 1. Base; 11. Slide rail; 12. Slide; 13. Base; 2. Oil delivery system; 21. Oil pump; 22. Oil tank; 23. Oil pipe; 3. Drive unit; 31. Cylinder; 32. Limit frame; 33. Telescopic chamber; 34. Transfer chamber; 35. Main chamber; 36. Delivery pipe; 37. Auxiliary pipe; 4. Positioning frame; 41. Cross bar; 42. Connecting rod; 43. Telescopic shaft; 44. Limit assembly; 441. Limit block; 442. Insert shaft; 443. Magnetic block; 444. Spring; 5. Docking component; 51. Extension shaft; 52. Push block; 53. Sealing block; 6. Nut; 7. Sheet metal. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. Example

[0029] Reference Figures 1 to 8 , which is an embodiment of the present invention, includes a welding device for automobile parts production, including a base 1, an oil delivery system 2 disposed on the base 1, a drive unit 3 disposed on the base 1, and the oil delivery system 2 is connected to the drive unit 3, multiple groups of positioning frames 4 connected to the side of the drive unit 3, and a docking component 5 laterally plugged into the side of the drive unit 3. The oil delivery system 2 is a common hydraulic oil supply system in the prior art, and can perform oil distribution or oil extraction operations on the drive unit 3 through communication with the drive unit 3;

[0030] Reference Figure 6 The drive unit 3 includes a fixed cylinder 31, a limiting frame 32 arranged on the side of the cylinder 31 and in a cross structure, a telescopic cavity 33 provided in each branch of the cross structure of the limiting frame 32, and a transfer cavity 34 provided in the center of the cylinder 31. The transfer cavity 34 is connected to the telescopic cavity 33. The telescopic cavity 33 and the transfer cavity 34 are connected in such a way that when the oil delivery system 2 injects hydraulic oil into the drive unit 3, the hydraulic oil can be injected into the telescopic cavity 33 through the transfer cavity 34, thereby driving the positioning frame 4 installed in the telescopic cavity 33 to move;

[0031] Reference Figure 4 and Figure 7The positioning frame 4 includes a horizontally arranged cross bar 41, a connecting rod 42 arranged vertically at the end of the cross bar 41, a telescopic shaft 43 connected to the side of the connecting rod 42, and the telescopic shaft 43 is inserted into the telescopic cavity 33, and a limiting component 44 arranged at the outer end of the cross bar 41. The limiting component 44 is arranged vertically at the outermost end of the cross bar 41, which can limit the horizontal position of the object sleeved on the cross bar 41. Since the telescopic shaft 43 extends into the telescopic cavity 33, when hydraulic oil is injected into the telescopic cavity 33, the hydraulic oil can push the telescopic shaft 43 to extend vertically outward from the telescopic cavity 33. The extended telescopic shaft 43 drives the cross bar 41 to move vertically synchronously through the connecting rod 42. The four groups of positioning frames 4 are inserted into the telescopic cavities 33 on each cross-shaped branch of the limiting frame 32 through the corresponding telescopic shafts 43. Therefore, the four groups of positioning frames 4 can extend from their respective telescopic cavities 33 in the same and synchronous manner. At this time, the four groups of positioning frames 4 can form a synchronous outward diffusion phenomenon. Figure 5 It can be seen that the outermost sides of the four groups of positioning frames 4 that spread outward synchronously are always within the range of the same circular ring, and the distance from each group of positioning frames 4 to the center of the circular ring is the same. If the holes of the nut 6 or the sheet metal part 7 are sleeved on the four groups of positioning frames 4, the four groups of positioning frames 4 that expand outward can abut against the inner walls of the screw holes of the nut 6 or the holes of the sheet metal part 7 through the outer walls, so that the centers of the two and the center of the circular ring formed by the four groups of positioning frames 4 coincide with the same axis, thereby realizing the centering operation of the two, ensuring that the centers of the two docking are on the same axis, effectively avoiding the occurrence of misalignment and deflection, and improving the docking accuracy. At the same time, the four groups of positioning frames 4 that expand outward can apply a limiting and fixed abutting force to the nut 6 and the sheet metal part 7 in the circumferential direction, thereby achieving limited fixation of the two, preventing the two from moving during the welding process, and ensuring the welding effect;

[0032] Reference Figure 4 and Figure 8The docking component 5 includes an extension shaft 51 that is laterally inserted into the cylinder body 31, a push block 52 that is arranged at the outer end of the extension shaft 51 and is in the shape of a cross cone. The four sides of the push block 52 extend to the gap between each two sets of positioning frames 4 and are staggered with the positioning frames 4. A sealing block 53 is provided at the other end of the extension shaft 51. The extension shaft 51 can move horizontally on the side of the drive unit 3, and the extension shaft 51 that moves horizontally can synchronously drive the push block 52 to move. At this time, if the nut 6 is sleeved on the fixed On the positioning frame 4, the push block 52 will push the nut 6 to move horizontally, so that the nut 6 is close to the sheet metal part 7 and abuts against it. Then, while the positioning frame 4 is performing the centering operation, the nut 6 and the sheet metal part 7 are automatically docked, further ensuring the docking accuracy. The conical push block 52, through its conical appearance, can adaptively match nuts 6 of different inner diameters, and by inserting into the inner diameter of the nut 6, it can perform the centering operation again through its conical outer wall while pushing, further ensuring the accuracy.

[0033] Further, refer to Figure 4 A main chamber 35 is opened inside the cylinder body 31, and one end of the extension shaft 51 with a sealing block 53 installed extends into the main chamber 35. At the same time, the diameter of the sealing block 53 matches the inner diameter of the main chamber 35. A delivery pipe 36 is opened downward at one end of the cylinder body 31, and the upper and lower ends of the delivery pipe 36 are respectively connected to the transfer chamber 34 and the oil delivery system 2. The oil delivery system 2 can deliver hydraulic oil to the transfer chamber 34 and the main chamber 35 through the delivery pipe 36. The sealing block 53 and the main chamber 35 are matched to obtain a structure so that the two can cooperate to form a piston structure, and then the extension or retraction operation of the docking component 5 can be achieved by sucking hydraulic oil.

[0034] Further, refer to Figure 4 The side of the delivery pipe 36 is laterally connected to an auxiliary pipe 37, and one end of the auxiliary pipe 37 is connected to the main cavity 35. The connection position between the delivery pipe 36 and the auxiliary pipe 37 is a trumpet-shaped structure, and the end with the smaller trumpet mouth is connected to the delivery pipe 36. Due to the special structure of the trumpet mouth, the hydraulic oil entering the delivery pipe 36 flows into the transfer cavity 34 more smoothly than into the auxiliary pipe 37. Therefore, the positioning frame 4 inserted in the limit frame 32 will perform the centering and alignment work first, and then the docking component 5 inserted in the main cavity 35 will perform the docking operation.

[0035] Further, refer to Figure 4 and Figure 7The connecting rod 42 is arranged in parallel with the telescopic shaft 43 in the vertical direction, and the ends of the two are at the same horizontal height. The cross bar 41 is laterally connected to the end of the telescopic shaft 43. The end of the telescopic shaft 43 is provided with a limit plate that matches the inner diameter of the telescopic cavity 33. The limit plate that matches the telescopic cavity 33 can make the telescopic shaft 43 and the telescopic cavity 33 form a piston structure, thereby realizing the extension or contraction action of the telescopic shaft 43 in the telescopic cavity 33 by sucking hydraulic oil.

[0036] Among them, reference Figure 3 and Figure 4 The outer end of the cross bar 41 is provided with an empty slot for installing the limit assembly 44. The limit assembly 44 includes a limit block 441 vertically inserted into the outer end of the cross bar 41, an insertion shaft 442 arranged below the limit block 441, and the insertion shaft 442 extends downward to the outside of the cross bar 41, a magnetic block 443 arranged at the lower end of the insertion shaft 442, and the magnetic block 443 is an isosceles triangle structure, and a spring 444 sleeved on the insertion shaft 442, and the two ends of the spring 444 respectively abut against the empty slot and the limit block 441 opened in the cross bar 41, the magnetic block 443 is composed of a magnet, and four groups of limit assemblies 44 are correspondingly provided on the four groups of cross bars 41. Under normal conditions, the four groups of cross bars 41 are hugged together. At this time, the four groups of magnetic blocks 443 are under the action of magnetic force. They attract each other. At this time, the force of the magnetic blocks 443 adsorbing each other is greater than the elastic force of the spring 444, which compresses the spring 444 so that the limit block 441 shrinks in the cross bar 41. The shrinking limit component 44 can avoid affecting the sheet metal 7 or the nut 6 sleeved on the positioning frame 4. When the four groups of positioning frames 4 expand outward and move away, the magnetic attraction between the magnetic blocks 443 disappears. At this time, the spring 444 elastically supports the limit block 441 to push it upward, so that the limit block 441 is vertically set at the end of the cross bar 41. The vertically set limit block 441 can form a horizontal limit for the sheet metal 7, forming a thrust opposite to the thrust when the docking component 5 pushes the nut 6 close to the sheet metal 7, preventing the sheet metal 7 from falling off during the docking process with the nut 6.

[0037] Further, refer to Figure 1 A slide rail 11 is provided on the base 1, and a slide table 12 is slidably connected to the slide rail 11, and the drive unit 3 is fixedly installed on the slide table 12. A base 13 is slidably provided on the side of the base 1. The slide rail 11 and the slide table 12 cooperate to form an electric slide structure, which can adjust the height position of the rotating shaft to better meet work requirements. The base 13 can slide back and forth, which is convenient for adjusting the position of the sheet metal part 7 to further meet usage requirements.

[0038] Further, refer to Figure 1The oil delivery system 2 includes an oil pump 21 arranged on the base 1, an oil tank 22 connected to one side of the oil pump 21, and an oil pipe 23 connected between the oil pump 21 and the drive unit 3. The oil pump 21 can transport the hydraulic oil in the oil tank 22 into the drive unit 3 through the oil pipe 23, or reversely extract the hydraulic oil in the drive unit 3 from the oil pipe 23 into the oil tank 22.

[0039] During use, combine Figure 4 , sleeve the nut 6 on the positioning frame 4, then dock the positioning frame 4 in the gathered state with the sheet metal hole of the sheet metal part 7, and then inject hydraulic oil into the driving unit 3 through the oil delivery system 2 to work, and the hydraulic oil enters the transfer chamber 34 and the auxiliary pipe 37 in turn through the delivery pipe 36. The hydraulic oil entering the transfer chamber 34 pushes the telescopic shafts 43 in the four telescopic chambers 33 to move outward synchronously, thereby making the four groups of positioning frames 4 perform outward expansion actions synchronously, and the limiting components 44 at the end of each group of positioning frames 4 extend outward accordingly. The four groups of positioning frames 4 that expand synchronously outward can realize the centering operation of the nut 6 and the sheet metal part 7, ensuring that the centers of the two docking are on the same axis, effectively avoiding the occurrence of misalignment and deflection, improving the docking accuracy, and ensuring the welding effect;

[0040] The hydraulic oil entering the auxiliary pipe 37 flows into the main chamber 35, and then drives the extension shaft 51 to extend outward by pushing the sealing block 53. The outwardly extended extension shaft 51 pushes the nut 6 through the push block 52 and makes it abut against the sheet metal part 7. By pushing the nut 6 and the sheet metal part 7 closer to each other in the horizontal direction, the parts to be welded of the two are abutted together, which facilitates the subsequent welding operation, realizes the automatic docking function, and improves work efficiency.

[0041] During the docking process, there is no need to additionally fix the sheet metal part 7. It is only necessary to clamp and fix the position to be welded by cooperating with the push block 52 and the limit assembly 44. This avoids the problem of being unable to effectively fix the special-shaped sheet metal parts, ensures the stability of the connection between the nut 6 and the sheet metal part 7, and further ensures the welding effect.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A welding device for producing automobile parts, comprising a base (1), an oil delivery system (2) arranged on the base (1), a drive unit (3) arranged on the base (1), the oil delivery system (2) being in communication with the drive unit (3), a plurality of positioning frames (4) connected to the side of the drive unit (3), and a docking component (5) laterally plugged into the side of the drive unit (3), characterized in that: The driving unit (3) includes a fixed cylinder (31), a cross-shaped limiting frame (32) provided on the side of the cylinder (31), a telescopic cavity (33) provided in each branch of the cross-shaped limiting frame (32), and a transfer cavity (34) provided at the center of the cylinder (31), wherein the transfer cavity (34) is communicated with the telescopic cavity (33); The positioning frame (4) includes a horizontally arranged crossbar (41), a connecting rod (42) vertically arranged at the end of the crossbar (41), a telescopic shaft (43) connected to the side of the connecting rod (42), and the telescopic shaft (43) is inserted into the telescopic cavity (33), and a limiting component (44) is arranged at the outer end of the crossbar (41); The docking component (5) includes an extension shaft (51) inserted transversely into the cylinder body (31), a push block (52) arranged at the outer end of the extension shaft (51) and having a cross-conical shape as a whole, and the four sides of the cross-cone of the push block (52) correspondingly extending into the gap between each two sets of positioning frames (4) and staggered with the positioning frames (4), and a sealing block (53) arranged at the other end of the extension shaft (51); A main cavity (35) is formed inside the cylinder (31), and one end of the extension shaft (51) is provided with a sealing block (53) and extends into the main cavity (35). The diameter of the sealing block (53) matches the inner diameter of the main cavity (35). A delivery pipe (36) is formed downwardly at one end of the cylinder (31), and the upper and lower ends of the delivery pipe (36) are respectively connected to the transfer cavity (34) and the oil delivery system (2); The connecting rod (42) is arranged in parallel with the telescopic shaft (43) in a vertical direction, and the ends of the two are at the same horizontal height, and the cross rod (41) is laterally connected to the end of the telescopic shaft (43), and the end of the telescopic shaft (43) is provided with a limit piece that matches the inner diameter of the telescopic cavity (33); The outer end of the cross bar (41) is provided with an empty slot for installing a limit assembly (44), and the limit assembly (44) includes a limit block (441) vertically plugged into the outer end of the cross bar (41), an insertion shaft (442) arranged below the limit block (441), and the insertion shaft (442) extends downward to the outside of the cross bar (41), a magnetic block (443) arranged at the lower end of the insertion shaft (442), and the magnetic block (443) is an isosceles triangle structure, and a spring (444) sleeved on the insertion shaft (442), and the two ends of the spring (444) respectively abut against the empty slot opened in the cross bar (41) and the upper end of the limit block (441).

2. The welding equipment for automobile parts production according to claim 1, characterized in that: The side of the delivery pipe (36) is laterally connected to an auxiliary pipe (37), and one end of the auxiliary pipe (37) is connected to the main cavity (35). The connection position between the delivery pipe (36) and the auxiliary pipe (37) is a trumpet-shaped structure, and the end with the smaller trumpet mouth is connected to the delivery pipe (36).

3. The welding equipment for automobile parts production according to claim 1, characterized in that: A slide rail (11) is provided on the base (1), a slide table (12) is slidably connected to the slide rail (11), and the drive unit (3) is fixedly mounted on the slide table (12). A base (13) is slidably provided on the side of the base (1).

4. The welding equipment for automobile parts production according to claim 1, characterized in that: The oil delivery system (2) comprises an oil pump (21) arranged on the base (1), an oil tank (22) connected to one side of the oil pump (21), and an oil pipe (23) connected between the oil pump (21) and the drive unit (3).

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