Efficient Stamping Welding Fixture

Abstract

The present invention provides an efficient stamping part welding fixture for clamping automotive stamping parts. The fixture includes a fixture fixing plate, a support part, two positioning parts, a clamping part and a retractable pin part. The support part and the retractable pin part are arranged on the fixture fixing plate, and the positioning part and the clamping part are arranged on the support part. Among them, the retractable pin part includes a retractable pin cylinder, at least one sleeve, a safety protective cover and an assembly plate. The safety protective cover is a U-shaped body formed by three surfaces. One end of the safety protective cover is covered and connected to the assembly plate. The retractable pin cylinder is arranged on the inner edge of the safety protective cover. The piston rod of the retractable pin cylinder is connected to the assembly plate. Two assembly through holes are formed in the assembly plate, and the sleeve is arranged in the assembly through holes. This application can be used in other products through simple replacement, reducing the investment cost and improving the enterprise efficiency.

Description

Technical Field

[0001] The present invention relates to a fixture, and more particularly to an efficient and multi-purpose welding fixture in the production process of automotive stampings. Background Art

[0002] With the development of technology, the progress and innovation of technology, automotive products are changing with each passing day, and higher technical requirements are also put forward for stamping parts and fastener products. Automotive sheet metal parts are an important area for China's automotive industry to participate in globalization.

[0003] In the manufacturing industry, stampings are widely used. Especially as the main component of automotive body parts, the stability of their shape and size directly determines the body accuracy and overall vehicle comprehensive factors. In the production process, it is necessary to weld sheet parts and pipe parts of the stamping parts. With the application of automated welding equipment, a fixture with automated clamping is required, and for similar products, it can be simply replaced for use, reducing the enterprise investment cost.

[0004] Therefore, there is still room for improvement in the existing sheet part and pipe part welding fixtures for stampings. Summary of the Invention

[0005] In view of the above defects, the present invention provides an efficient stamping part welding fixture for combining with automated equipment to perform various complex stamping part welding processes, and at the same time, it can achieve the function of multi-purpose with a single machine through simple replacement to solve the existing technical problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] An efficient stamping part welding fixture for clamping automotive stampings, the fixture includes a fixture fixing plate, a support part, two positioning parts, a clamping part, and a retractable pin part. The support part and the retractable pin part are arranged on the fixture fixing plate, and the positioning part and the clamping part are arranged on the support part. Among them, the retractable pin part includes a retractable pin cylinder, at least one sleeve, a safety protective cover, and an assembly plate. The safety protective cover is a U-shaped body formed by three sides. One end of the safety protective cover is covered and connected to the assembly plate. The retractable pin cylinder is arranged along the inner edge of the safety protective cover. The piston rod of the retractable pin cylinder is connected to the assembly plate. Two assembly through holes are opened on the assembly plate, and the sleeve is arranged in the assembly through hole.

[0008] The fixture described in the preferred embodiment of the present application, wherein the clamping part includes a clamping cylinder, a clamping connecting plate, a clamping limiting piece, a clamping strip and a clamping piece. One end of the clamping connecting plate is connected to the supporting part, the clamping cylinder is arranged at the other end of the clamping connecting plate. The clamping limiting piece is an L-shaped sheet body. One surface of the clamping limiting piece is connected to the clamping connecting plate, and a clamping limiting groove is formed on the other surface of the clamping limiting piece. The clamping strip is connected to the piston rod of the clamping cylinder, the clamping piece is arranged at one end of the clamping strip, and the other end of the clamping strip is movably connected to the clamping limiting groove.

[0009] The fixture described in the preferred embodiment of the present application, wherein the two positioning parts are respectively and correspondingly connected to the supporting part. The positioning part includes a positioning block, a positioning pin and an adjusting block. The positioning block is connected to the supporting part, the positioning pin is connected to the adjusting block, and the adjusting block is connected to the supporting part.

[0010] The fixture described in the preferred embodiment of the present application, wherein the supporting part is an L-shaped sheet body. One surface of the supporting part is arranged on the fixture fixing plate, and the other surface of the supporting part is connected to the two positioning parts and the clamping part.

[0011] The fixture described in the preferred embodiment of the present application further includes a forward and backward pin limiting block, which is connected to the supporting part and is located above the assembly plate.

[0012] The design concept of the present application is to design an automatic welding fixture for stamping parts, which uses the power of a cylinder to clamp the plate part and pipe part of the stamping part to achieve precise welding of the stamping part. Moreover, the quick-installation connection structure of the fixture can realize the quick installation and replacement of the fixture, which can be applied to similar products, saving the development cost and equipment investment cost, improving the enterprise benefit and reducing the production risk.

[0013] Due to the adoption of the above technical features, the present invention has the following advantages and positive effects compared with the prior art:

[0014] First, the present application realizes the automatic clamping of stamping parts;

[0015] Second, the present application can be used in other products after simple replacement, reducing the investment cost and improving the enterprise benefit.

[0016] Of course, any specific embodiment of implementing the content of the present invention does not necessarily have all the above technical effects at the same time. Description of the Drawings

[0017] Figure 1 Schematic diagram of the fixture of the present application;

[0018] Figure 2Schematic diagram of processing the left part for this application;

[0019] Figure 3 Schematic diagram of processing the right part for this application;

[0020] Figure 4 Schematic diagram of the assembly plate for this application;

[0021] Figure 5 is Figure 4 top view schematic diagram of;

[0022] Figure 6 Schematic diagram of the sleeve for this application;

[0023] Figure 7 is Figure 6 top view schematic diagram of;

[0024] Figure 8 Schematic diagram of the clamping part for this application;

[0025] Figure 9 Schematic diagram of an embodiment of this application. Specific embodiments

[0026] The following describes several preferred embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to these embodiments. The present invention covers any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without these detailed descriptions. Additionally, well-known methods, processes, procedures, components, etc. are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0027] Please refer to Figure 1 Schematic diagram of the fixture for this application; The efficient stamping part welding fixture of this application is used to facilitate the welding process by clamping automotive stamping parts. The main body of this application is the fixture, so the feeding mechanism (not shown in the figure) and the welding mechanism (not shown in the figure) are not described. The fixture of this application includes a fixture fixing plate 10, a support part 20, two positioning parts, a clamping part 40, and a retractable pin part 30. The support part 20 and the retractable pin part 30 are arranged on the fixture fixing plate 10, and the positioning parts and the clamping part 40 are arranged on the support part 20. Please refer to Figure 2 and Figure 3 , the schematic diagram of processing the left part for this application and the schematic diagram of processing the right part for this application. It can be seen that in this application, the pipe fitting 1 is inserted into the stamping part 2 and then welded together. The welding position is at A in the figure. Since the two processed parts are similar, a common machine platform is designed, and simple replacement can be achieved.

[0028] Please also refer to Figure 1 ,Figure 4 , Figure 5 , Figure 6 and Figure 7 , the advancing and retracting pin part 30 includes an advancing and retracting pin cylinder 31, at least one sleeve 32, a safety protection cover 33 and an assembly plate 34. The safety protection cover 33 is a U-shaped body formed by three faces. One end of the safety protection cover 33 is covered and connected to the assembly plate 34. As shown in Figure 1 , the three faces of the safety protection cover 33 are covered and connected to the three side edges of the assembly plate 34. As shown in Figure 4 and Figure 5 , a connection hole is opened on one side surface of the assembly plate 34, and a through hole is opened on the safety protection cover 33 at a position corresponding to this connection hole. In this embodiment, the safety protection cover 33 and the assembly plate 34 are fixedly connected by a screw passing through this through hole.

[0029] In addition, as shown in Figure 1 , the advancing and retracting pin cylinder 31 is arranged on the inner edge of the safety protection cover 33. After assembly, the inner edge of the safety protection cover 33 is movably connected to the outer wall of the advancing and retracting pin cylinder 31. Such a design can stabilize the up and down movement of the safety protection cover 33 without skew. After assembly, the piston rod of the advancing and retracting pin cylinder 31 is connected to the assembly plate 34. In this way, when the piston rod extends, it can drive the assembly plate 34 and the safety protection cover 33 to move upward, and when the piston rod retracts, it can drive the assembly plate 34 and the safety protection cover 33 to move downward. Two assembly through holes 341 are opened on the assembly plate 34, which are respectively used to correspond to processing the left part and the right part. The sleeve 32 is arranged in the assembly through hole 341 and locked with a screw. As shown in Figure 1 , the number of the sleeves 32 in this embodiment is two, and the inner shape of the sleeve 32 is matched with the outer shape of the pipe fitting 1 to facilitate support.

[0030] In addition, as shown in Figure 1 , the fixture of the present application further includes an advancing and retracting pin limit block 60. The advancing and retracting pin limit block 60 is connected to the support part 20. The advancing and retracting pin limit block 60 is located above the assembly plate 34 and is used to limit the distance that the assembly plate 34 moves upward. When the assembly plate 34 moves upward and contacts the advancing and retracting pin limit block 60, the piston rod cannot continue to extend. At this time, the pipe fitting 1 is inserted into the stamping part 2 at the position where the welding process is carried out.

[0031] Preferably, please refer to Figure 1 and Figure 8, the clamping portion 40 of the fixture of the present application includes a clamping cylinder 41, a clamping connection plate 42, a clamping limit piece 43, a clamping bar 44 and a clamping piece 45. One end of the clamping connection plate 42 is connected to the support portion 20, and the clamping cylinder 41 is arranged at the other end of the clamping connection plate 42. As shown in the figure, the clamping cylinder 41 is fixed to the clamping connection plate 42 by fasteners such as pin shafts and screw rods; the clamping limit piece 43 is an L-shaped sheet body. One surface of the clamping limit piece 43 is connected to the clamping connection plate 42, and a clamping limit groove 431 is formed on the other surface of the clamping limit piece 43. The clamping bar 44 is connected to the piston rod of the clamping cylinder 41, the clamping piece 45 is arranged at one end of the clamping bar 44, the other end of the clamping bar 44 is movably connected to the clamping limit groove 431, and the notch direction of the clamping limit groove 431 is the same as the moving direction of the piston rod of the clamping cylinder 41. Therefore, when the piston rod retracts, the clamping bar 44 is driven into the clamping limit groove 431. Under the limitation of the clamping limit groove 431, the clamping bar 44 can move smoothly, and the clamping piece 45 arranged at one end of the clamping bar 44 can stably limit the stamping part 2 from moving.

[0032] Next, the positioning portion of the present application will be described. The two positioning portions are respectively connected to the support portion 20 correspondingly. The purpose of setting the two positioning portions is to limit the stamping part 2 at a set position, where the pipe fitting 1 can be well inserted into the stamping part 2 and then welded together; the positioning portion includes a positioning block 51, a positioning pin 52 and an adjustment block 53. The positioning block 51 is connected to the support portion 20. The purpose of setting the positioning block 51 is to contact the surface of the stamping part 2 so that the stamping part 2 reaches the set position, where the pipe fitting 1 can be well inserted into the stamping part 2 and then welded together; the positioning pin 52 is connected to the adjustment block 53, the adjustment block 53 is connected to the support portion 20. The purpose of setting the positioning pin 52 is to insert into the through hole of the stamping part 2 so that it can hang on it and will not fall off after the feeding mechanism releases the stamping part 2. In addition, when the piston rod of the clamping cylinder 41 retracts, the stamping part 2 can move smoothly under the limitation of the positioning pin 52.

[0033] As Figure 1As shown, the adjustment block 53 is an L-shaped body. The connection between the adjustment block 53 and the support portion 20 is an adjustable-position connection used to adjust the positioning pin 52 to a suitable position. In this application, two threaded holes are provided on the side of the support portion 20, and a through hole is provided in the adjustment block 53. After a screw passes through the through hole provided in the adjustment block 53, it is connected to the threaded hole. The two threaded holes, one in front of the other, can initially adjust the position of the positioning pin 52. In addition, the L-shape of the adjustment block 53 in the figure is composed of two blocks, and multiple connection holes are provided on the two blocks, which can further adjust the relevant positions and adjust the positioning pin 52 to a suitable position.

[0034] Preferably, please refer to Figure 1 , the support portion 20 of the fixture of this application is an L-shaped sheet body. One surface of the support portion 20 is arranged on the fixture fixing plate 10 to achieve the function of stable support. The other surface of the support portion 20 is perpendicular upward, and the two positioning portions and the clamping portion 40 are connected thereto.

[0035] The working principle of the fixture of this application will be described below: Please refer to Figure 9 , for example, when welding the workpiece on the left side, the number of the sleeves 32 in this embodiment is one, which is only used to illustrate this application. The sleeve 32 is arranged in the assembly through hole 341 on the left side of the assembly plate 34. If it is to weld the workpiece on the right side, the sleeve 32 is only required to be arranged in the assembly through hole 341 on the right side of the assembly plate 34; during operation, the feeding mechanism places the pipe fitting 1 into the sleeve 32, the piston rod of the clamping cylinder 41 extends, the feeding mechanism sends the stamping part 2 to the set position, the through hole of the stamping part 2 corresponds to the positioning pin 52, the piston rod of the clamping cylinder 41 retracts, driving the clamping strip 44 and the clamping piece 45 to move the stamping part 2 along the positioning pin 52. When the stamping part 2 abuts against the positioning block 51, the clamping piece 45 and the positioning block 51 firmly clamp the stamping part 2 without movement; then, the piston rod of the advancing and retracting pin cylinder 31 extends to drive the assembly plate 34, the sleeve 32, and the pipe fitting 1 in the sleeve 32 to move. When the assembly plate 34 contacts the advancing and retracting pin limit block 60, the piston rod cannot continue to extend. At this time, the pipe fitting 1 is inserted into the hole of the stamping part 2, and the welding mechanism performs the welding process. After the welding is completed, the piston rod of the advancing and retracting pin cylinder 31 retracts to drive the assembly plate 34 and the sleeve 32 downward, the piston rod of the clamping cylinder 41 extends, driving the clamping strip 44 and the clamping piece 45 to release the stamping part 2, and the feeding mechanism takes out the stamping part 2 and sends it to the next process.

[0036] In summary, the present application provides an efficient and multifunctional fixture structure for the automatic fixture of welding between automotive stamping parts 2 and pipe parts 1. The present application achieves the following: 1. The left and right parts can be welded on the same set of fixtures, and the parts can be quickly switched without replacing the fixtures and debugging the parts; 2. The fixture has the functions of automatic pin insertion and retraction, enabling the quick loading and unloading of parts; 3. The multifunctional fixture structure can reduce the development cost.

[0037] In summary, due to the adoption of the above technical features, the present invention has the following advantages and positive effects compared with the prior art:

[0038] First, the present application realizes the automatic clamping of stamping parts;

[0039] Second, the present application can be used in other products after simple replacement, reducing the investment cost and improving the enterprise efficiency.

[0040] The preferred embodiments of the invention are only used to help illustrate the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the invention, so that those skilled in the art can make good use of the invention. The invention is only limited by the claims and their full scope and equivalents. What is disclosed above is only the preferred embodiments of the invention, but not used to limit itself. Any equivalent changes and modifications made by those skilled in the art without departing from the spirit and connotation of the invention shall fall within the protection scope of the invention.

Claims

1. An efficient stamping part welding fixture for clamping automotive stamping parts, characterized in that, The fixture includes a fixture fixing plate, a supporting part, two positioning parts, a clamping part and a retractable pin part. The supporting part and the retractable pin part are arranged on the fixture fixing plate, and the positioning part and the clamping part are arranged on the supporting part. Among them, the retractable pin part includes a retractable pin cylinder, at least one sleeve, a safety protective cover and an assembly plate. The safety protective cover is a U-shaped body formed by three surfaces. One end of the safety protective cover is covered and connected to the assembly plate. The retractable pin cylinder is arranged along the inner edge of the safety protective cover. The inner edge of the safety protective cover is movably connected to the outer wall of the retractable pin cylinder. The piston rod of the retractable pin cylinder is connected to the assembly plate, and the piston rod drives the assembly plate and the safety protective cover to move. Two assembly through holes are opened on the assembly plate, and the sleeve is arranged in the assembly through hole; the clamping part includes a clamping cylinder, and the positioning part includes a positioning pin. When the piston rod of the clamping cylinder retracts, the stamping part moves smoothly under the restriction of the positioning pin; the clamping part further includes a clamping connecting plate, a clamping limiting piece, a clamping strip and a clamping piece. One end of the clamping connecting plate is connected to the supporting part, and the clamping cylinder is arranged at the other end of the clamping connecting plate. The clamping limiting piece is an L-shaped sheet body. One surface of the clamping limiting piece is connected to the clamping connecting plate, and a clamping limiting groove is opened on the other surface of the clamping limiting piece. The clamping strip is connected to the piston rod of the clamping cylinder, the clamping piece is arranged at one end of the clamping strip, and the other end of the clamping strip is movably connected to the clamping limiting groove; the two positioning parts are respectively connected to the supporting part correspondingly. The positioning part further includes a positioning block and an adjusting block. The positioning block is connected to the supporting part, the positioning pin is connected to the adjusting block, and the adjusting block is connected to the supporting part; the supporting part is an L-shaped sheet body. One surface of the supporting part is arranged on the fixture fixing plate, and the other surface of the supporting part is connected to the two positioning parts and the clamping part.

2. The fixture according to claim 1, characterized in that, It further includes a retractable pin limiting block, and the retractable pin limiting block is connected to the supporting part and is located above the assembly plate.

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