A double sheet metal combination product structure and assembly method

Abstract

A double sheet metal combination product structure includes a first sheet metal part and a second sheet metal part, the first sheet metal part and the second sheet metal part have the same structure and shape; the double sheet metal combination product is specifically a rectangular frame structure composed of the first sheet metal part and the second sheet metal part; both ends of the first sheet metal part and the second sheet metal part are provided with mounting structures, and the first sheet metal part and the second sheet metal part are assembled with each other through the mounting structures; the double sheet metal combination product structure designed in this scheme and the composition method of the two solves multiple difficulties encountered in the production of frame products composed of double sheet metal parts, including the fixing method of the initial assembly of the two sheet metal parts and the problem that the sheet metal parts are extremely easy to deform during the later processing and forming. The assembly structure of the two sheet metal parts is simply and cleverly designed and can be installed quickly. The riveting connection equipment used for later forming can accurately rivet the product and effectively avoid the deformation of the sheet metal during the riveting process, thereby improving the product production efficiency while ensuring the product production quality.

Description

Technical Field

[0001] The invention belongs to the technical field of sheet metal product assembly production, and specifically relates to a double sheet metal combination product structure and an assembly method. Background Art

[0002] There are many difficulties in the assembly and production of rectangular frame products composed of double sheet metal parts. For example, during the initial assembly of the two sheet metal parts, due to problems with the connection structure design, the two sheet metal parts often become loose or shifted after assembly, resulting in a very high rework rate for the initial assembly of the product, affecting the progress of product production. Secondly, the double sheet metal combination product requires the use of processing equipment in the later reinforcement and forming process. Riveting is a relatively common method. However, single riveting equipment has great defects in the riveting process. The punching force of the riveting press plate is too large, causing the sheet metal to deform. The inaccurate riveting position causes the rivets to fail to fix the two sheet metal products well, which largely causes product defects.

[0003] Therefore, it is necessary to design a double sheet metal combination product structure and assembly method to solve the above technical problems. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention aims to provide a double sheet metal combination product structure and an assembly method.

[0005] To achieve the above-mentioned purpose and other related purposes, the technical solution provided by the present invention is: a double sheet metal combination product structure, including a first sheet metal part and a second sheet metal part, the first sheet metal part and the second sheet metal part have the same structure and shape, and are both L-shaped; the double sheet metal combination product is specifically a rectangular frame structure composed of the first sheet metal part and the second sheet metal part; both ends of the first sheet metal part and the second sheet metal part are provided with mounting structures, and the first sheet metal part and the second sheet metal part are assembled with each other through the mounting structure.

[0006] Preferably, one end of each of the first sheet metal component and the second sheet metal component is provided with a vertically protruding connecting plate, on which a rivet is provided; and the other end of each of the first sheet metal component and the second sheet metal component is provided with a mounting hole corresponding to the rivet.

[0007] Preferably, a plurality of rivets are provided, and the plurality of rivets are evenly arranged on the surface of the connecting plate; the number and positions of the mounting holes correspond to the rivets.

[0008] A method for assembling a double sheet metal combination product, comprising the following steps:

[0009] Step 1: insert the rivet provided on the connecting plate at one end of the first sheet metal into the mounting hole provided at the other end of the second sheet metal, and at the same time, insert the rivet provided on the connecting plate at one end of the second sheet metal into the mounting hole provided at the other end of the first sheet metal; complete the preliminary assembly of the double sheet metal combination product;

[0010] Step 2: Perform an initial inspection on the double sheet metal assembly product that has been preliminarily assembled in step 1 to check whether there are defective products where the rivets are not inserted into the mounting holes, and rework them in a timely manner;

[0011] Step 3: Place the double sheet metal assembly product that has completed the initial inspection in step 2 on the sheet metal riveting connection equipment, and use the sheet metal riveting connection equipment to rivet the rivets in the mounting holes on both sides of the double sheet metal assembly to complete the riveting work on both sides of the double sheet metal assembly;

[0012] Step 4: Take out the double sheet metal assembly product riveted in step 3 from the sheet metal riveting connection equipment, and then perform the final inspection on it to check whether the riveting process is good, whether there are defective products such as rivet pressure deviation and sheet metal deformation, screen out defective products and qualified products, and complete the assembly of the entire double sheet metal assembly product.

[0013] Preferably, the sheet metal riveting connection equipment in step three includes a base, a lower fixed seat, a lower pad, an upper pressure plate and an upper bottom plate; a guide column is provided on the base, and the lower fixed seat, the lower pad, the upper pressure plate and the upper fixed plate are sequentially mounted on the guide column from bottom to top; the upper bottom plate is connected to the cylinder action end; the riveted part of the double sheet metal combination product is placed on the lower pad, a rivet pin is fixedly provided on the upper fixed plate, a through hole corresponding to the rivet pin is opened on the upper pressure plate, and the head end of the rivet pin passes through the through hole and corresponds to the rivet of the riveted part of the double sheet metal product up and down.

[0014] Preferably, a first buffer spring is arranged between the lower cushion block and the lower fixing seat; and a second buffer spring is arranged between the upper pressure plate and the upper base plate.

[0015] Preferably, a product fixing mechanism is also provided on the base, and the product fixing mechanism includes a bracket, a support plate and an adjustable screw, the adjustable screw is provided on the bracket, and the support plate is provided on the adjustable screw.

[0016] Preferably, the sheet metal riveting connection device performs the following specific steps when riveting a double sheet metal combination product:

[0017] Step 1: First, place the part of the double sheet metal assembly product that needs to be riveted on the lower pad. The bottom of the product is supported by the lower fixed seat, and the lower pad is stuck in the middle of the double sheet metal assembly product to complete the positioning; at the same time, adjust the screw so that the support plate supports the sheet metal part located above from the middle of the product;

[0018] Step 2: After the double sheet metal assembly product is positioned and fixed on the equipment, the control cylinder drives the upper pressure plate and the upper bottom plate downward. After the upper pressure plate presses the product, the head of the riveting pin on the upper fixing plate moves downward through the through hole opened on the upper pressure plate, and finally the rivets at the riveting part are punched to complete the riveting;

[0019] Step 3: Take the double sheet metal assembly product out of the equipment, switch it to another direction, repeat steps 1 and 2 to rivet the part that needs to be riveted at the other end of the double sheet metal assembly product.

[0020] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0021] A double sheet metal combination product structure and the composition of the two designed in this scheme solve many difficulties encountered in the production of frame products composed of double sheet metal parts, including the fixing method of the two sheet metal parts in the initial assembly and the problem that the sheet metal parts are extremely easy to deform during the later processing and forming. The assembly structure of the two sheet metal parts is simple and ingenious in design and can be installed quickly. The riveting connection equipment used for later forming can accurately rivet the product and effectively avoid the deformation of the sheet metal during the riveting process, thereby improving the product production efficiency and ensuring the product production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a double sheet metal combination product.

[0023] Figure 2 It is a schematic diagram of the structure of the first sheet metal component.

[0024] Figure 3 Schematic diagram of the second sheet metal structure.

[0025] Figure 4 It is a schematic diagram of the overall structure of the riveting equipment.

[0026] Figure 5 This is a schematic diagram of the product structure of the riveting equipment and double sheet metal parts combination.

[0027] In the above drawings, there are a first sheet metal part 1, a second sheet metal part 2, a connecting plate 3, a rivet 4, a mounting hole 5, a base 6, a lower fixing seat 7, a lower pad 8, an upper pressure plate 9, an upper base plate 10, a guide column 11, a bracket 12, a support plate 13, an adjustable screw 14, and a double sheet metal combination product 15. DETAILED DESCRIPTION

[0028] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0029] See also Figure 1~Figure 5. It should be noted that in the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third" and the like are only used to distinguish the descriptions, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figure 1 ~3 shows a double sheet metal combination product structure, including a first sheet metal part 1 and a second sheet metal part 2, the first sheet metal part 1 and the second sheet metal part 2 have the same structure and shape, both are L-shaped; the double sheet metal combination product 15 is specifically a rectangular frame structure composed of the first sheet metal part 1 and the second sheet metal part 2; one end of the first sheet metal part 1 and the second sheet metal part 2 are provided with a vertically protruding connecting plate 3, and the connecting plate 3 is provided with a rivet 4; the other end of the first sheet metal part 1 and the second sheet metal part 2 is provided with a mounting hole 5 corresponding to the rivet 4.

[0032] The assembly method of the two sheet metal parts of the double sheet metal combination product 15 includes the following steps:

[0033] Step 1: insert the rivet provided on the connecting plate at one end of the first sheet metal part 1 into the mounting hole provided at the other end of the second sheet metal part 2, and at the same time, insert the rivet provided on the connecting plate at one end of the second sheet metal part 2 into the mounting hole provided at the other end of the first sheet metal part; complete the preliminary assembly of the double sheet metal combination product 15;

[0034] Step 2: Perform an initial inspection on the double sheet metal assembly product 15 that has been preliminarily assembled in step 1 to check whether there are defective products in which the rivets 4 are not inserted into the mounting holes 5, and rework them in a timely manner;

[0035] Step 3: Place the double sheet metal assembly product 15 that has completed the initial inspection in step 2 on the sheet metal riveting connection equipment, and use the sheet metal riveting connection equipment to rivet the rivets 4 in the mounting holes 5 on both sides of the double sheet metal assembly to complete the riveting work on both sides of the double sheet metal assembly;

[0036] Step 4: Take out the double sheet metal combination product 15 riveted in step 3 from the sheet metal riveting connection equipment, and then perform the final inspection on it to check whether the riveting process is good, whether there are defective products such as rivet 4 pressure deviation and sheet metal deformation, screen out defective products and qualified products, and complete the assembly of the entire double sheet metal combination product 15.

[0037] like Figure 4 As shown, the sheet metal riveting connection equipment structure mentioned in step three includes a base 6, a lower fixing seat 7, a lower pad, an upper pressure plate 9 and an upper bottom plate 10; a guide column 11 is provided on the base 6, and the lower fixing seat 7, the lower pad, the upper pressure plate 9 and the upper fixing plate are sequentially sleeved on the guide column 11 from bottom to top; the upper bottom plate 10 is connected to the cylinder action end; the riveted part of the double sheet metal combination product 15 is placed on the lower pad, a riveting pin is fixedly provided on the upper fixing plate, and a through hole corresponding to the riveting pin is opened on the upper pressure plate 9, and the head end of the riveting pin passes through the through hole and corresponds to the rivet 4 at the riveted part of the double sheet metal product up and down.

[0038] A first buffer spring is arranged between the lower pad and the lower fixed seat 7; a second buffer spring is arranged between the upper pressure plate 9 and the upper base plate 10; in order to ensure that the strong punching force during the pressing process causes the sheet metal product to deform, buffer springs are arranged between the lower pad 8 and the lower fixed seat 7, and between the upper pressure plate 9 and the upper base plate 10, respectively, to ensure that there is a certain buffer force during the riveting process to avoid deformation of the sheet metal product.

[0039] A product fixing mechanism is also provided on the base 6, and the product fixing mechanism includes a bracket 12, a support plate 13 and an adjustable screw 14, the adjustable screw 14 is arranged on the bracket 12, and the support plate 13 is arranged on the adjustable screw 14; the function of the product fixing mechanism is to support the hollow part in the middle of the combined product to ensure that the sheet metal product located on the upper layer will not fall off during the stamping process and cause riveting failure; the adjustable screw 14 can drive the support plate 13 to rotate so as to adjust the angle, which is suitable for products of various sizes. After the angle is adjusted, you only need to tighten the screw again.

[0040] like Figure 5 As shown, the specific steps of the sheet metal riveting connection device when riveting the double sheet metal combination product 15 are as follows:

[0041] The first step: first place the part of the double sheet metal assembly product 15 that needs to be riveted on the lower pad, the bottom of the product is supported by the lower fixing seat 7, and the lower pad is clamped in the middle of the double sheet metal assembly product 15 to complete the positioning; at the same time, adjust the screw so that the support plate 13 supports the sheet metal part located above from the middle of the product;

[0042] Step 2: After the double sheet metal assembly product 15 is positioned and fixed on the equipment, the control cylinder drives the upper pressing plate 9 and the upper bottom plate 10 downward. After the upper pressing plate 9 presses the product, the head of the riveting pin on the upper fixing plate moves downward through the through hole opened on the upper pressing plate 9, and finally the rivet 4 at the riveting part is punched to complete the riveting;

[0043] Step 3: Take the double sheet metal assembly product 15 out of the equipment, switch it to another direction, repeat steps 1 and 2 to rivet the part that needs to be riveted at the other end of the double sheet metal assembly product 15.

[0044] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A double sheet metal combined product structure, characterized in that: The double sheet metal assembly comprises a first sheet metal part and a second sheet metal part, wherein the first sheet metal part and the second sheet metal part have the same structure and shape, and are both L-shaped; the double sheet metal assembly product is specifically a rectangular frame structure composed of the first sheet metal part and the second sheet metal part; both ends of the first sheet metal part and the second sheet metal part are provided with mounting structures, and the first sheet metal part and the second sheet metal part are assembled with each other through the mounting structures; The assembly process includes the following steps: Step 1: insert the rivet provided on the connecting plate at one end of the first sheet metal into the mounting hole provided at the other end of the second sheet metal, and at the same time, insert the rivet provided on the connecting plate at one end of the second sheet metal into the mounting hole provided at the other end of the first sheet metal; complete the preliminary assembly of the double sheet metal combination product; Step 2: Perform an initial inspection on the double sheet metal assembly product that has been preliminarily assembled in step 1 to check whether there are defective products where the rivets are not inserted into the mounting holes, and rework them in a timely manner; Step 3: Place the double sheet metal assembly product that has completed the initial inspection in step 2 into the sheet metal riveting connection equipment, and use the sheet metal riveting connection equipment to rivet the rivets in the mounting holes on both sides of the double sheet metal assembly to complete the riveting work on both sides of the double sheet metal assembly; the sheet metal riveting connection equipment includes a base, a lower fixing seat, a lower pad, an upper pressure plate and an upper bottom plate; a guide column is arranged on the base, and the lower fixing seat, the lower pad, the upper pressure plate and the upper fixing plate are sequentially sleeved on the guide column from bottom to top; the upper bottom plate is connected to the working end of the cylinder; the riveted part of the double sheet metal assembly product is placed on the lower pad, and a riveting pin is fixedly arranged on the upper fixing plate, and a through hole corresponding to the riveting pin is opened on the upper pressure plate, and the head end of the riveting pin passes through the through hole and corresponds to the rivet of the riveted part of the double sheet metal assembly product up and down; Step 4: Take out the double sheet metal assembly product riveted in step 3 from the sheet metal riveting connection equipment, and then perform the final inspection to check whether the riveting process is good, whether there are defective products such as rivet pressure deviation or sheet metal deformation, and select defective products and qualified products to complete the assembly of the entire double sheet metal assembly product; The specific steps of the sheet metal riveting connection device in step 3 when riveting a double sheet metal combination product are as follows: Step 1: First, place the part of the double sheet metal assembly product that needs to be riveted on the lower pad. The bottom of the product is supported by the lower fixed seat, and the lower pad is stuck in the middle of the double sheet metal assembly product to complete the positioning; at the same time, adjust the screw so that the support plate supports the sheet metal part located above from the middle of the product; Step 2: After the double sheet metal assembly product is positioned and fixed on the equipment, the control cylinder drives the upper pressure plate and the upper bottom plate downward. After the upper pressure plate presses the product, the head of the riveting pin on the upper fixing plate moves downward through the through hole opened on the upper pressure plate, and finally the rivets at the riveting part are punched to complete the riveting; Step 3: Take the double sheet metal assembly product out of the equipment, switch it to another direction, repeat steps 1 and 2 to rivet the part that needs to be riveted at the other end of the double sheet metal assembly product.

2. A double sheet metal assembly product structure according to claim 1, characterized in that: One end of each of the first sheet metal component and the second sheet metal component is provided with a vertically protruding connecting plate, and a rivet is provided on the connecting plate; the other end of each of the first sheet metal component and the second sheet metal component is provided with a mounting hole corresponding to the rivet.

3. A double sheet metal assembly product structure according to claim 2, characterized in that: A plurality of rivets are provided, and the plurality of rivets are evenly arranged on the surface of the connecting plate; the number and positions of the mounting holes correspond to the rivets.

4. A method for assembling a double sheet metal assembly product, characterized in that: It includes the following steps: Step 1: insert the rivet provided on the connecting plate at one end of the first sheet metal into the mounting hole provided at the other end of the second sheet metal, and at the same time, insert the rivet provided on the connecting plate at one end of the second sheet metal into the mounting hole provided at the other end of the first sheet metal; complete the preliminary assembly of the double sheet metal combination product; Step 2: Perform an initial inspection on the double sheet metal assembly product that has been preliminarily assembled in step 1 to check whether there are defective products where the rivets are not inserted into the mounting holes, and rework them in a timely manner; Step 3: Place the double sheet metal assembly product that has completed the initial inspection in step 2 on the sheet metal riveting connection equipment, and use the sheet metal riveting connection equipment to rivet the rivets in the mounting holes on both sides of the double sheet metal assembly to complete the riveting work on both sides of the double sheet metal assembly; the sheet metal riveting connection equipment includes a base, a lower fixing seat, a lower pad, an upper pressure plate and an upper bottom plate; a guide column is provided on the base, and the lower fixing seat, the lower pad, the upper pressure plate and the upper fixing plate are sequentially sleeved on the guide column from bottom to top; the upper bottom plate is connected to the The cylinder action end; the riveted part of the double sheet metal combination product is placed on the lower pad, the upper fixing plate is fixedly provided with a rivet pin, the upper pressure plate is provided with a through hole corresponding to the rivet pin, the head end of the rivet pin passes through the through hole and corresponds to the rivet of the riveted part of the double sheet metal combination product up and down, the base is also provided with a product fixing mechanism, the product fixing mechanism includes a bracket, a support plate and an adjustable screw, the adjustable screw is provided on the bracket, and the support plate is provided on the adjustable screw; Step 4: Take out the double sheet metal assembly product riveted in step 3 from the sheet metal riveting connection equipment, and then perform the final inspection to check whether the riveting process is good, whether there are defective products such as rivet pressure deviation or sheet metal deformation, and select defective products and qualified products to complete the assembly of the entire double sheet metal assembly product; The specific steps of the sheet metal riveting connection equipment in step 3 when riveting a double sheet metal combination product are as follows: Step 1: First, place the part of the double sheet metal assembly product that needs to be riveted on the lower pad. The bottom of the product is supported by the lower fixed seat, and the lower pad is stuck in the middle of the double sheet metal assembly product to complete the positioning; at the same time, adjust the screw so that the support plate supports the sheet metal part located above from the middle of the product; Step 2: After the double sheet metal assembly product is positioned and fixed on the equipment, the control cylinder drives the upper pressure plate and the upper bottom plate downward. After the upper pressure plate presses the product, the head of the riveting pin on the upper fixing plate moves downward through the through hole opened on the upper pressure plate, and finally the rivets at the riveting part are punched to complete the riveting; Step 3: Take the double sheet metal assembly product out of the equipment, switch it to another direction, repeat steps 1 and 2 to rivet the part that needs to be riveted at the other end of the double sheet metal assembly product.

5. The double sheet metal assembly product assembly method according to claim 4, characterized in that: A first buffer spring is arranged between the lower cushion block and the lower fixing seat; and a second buffer spring is arranged between the upper pressure plate and the upper base plate.

6. The double sheet metal assembly product assembly method according to claim 4, characterized in that: The base is also provided with a product fixing mechanism, which includes a bracket, a supporting plate and an adjustable screw. The adjustable screw is arranged on the bracket, and the supporting plate is arranged on the adjustable screw.

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