Household appliance sheet metal riveting device

Abstract

The utility model belongs to sheet metal processing technical field especially is a kind of household electrical appliances sheet metal riveting device.The utility model discloses through being provided with the positioning device of the slot hole installation on support table, the rivet hole to be machined on sheet metal part is placed on support table through positioning device, simultaneously according to the design of moving block on positioning device, can be according to the size of rivet hole size and utilize the elastic force of spring to carry out self-adapting adjustment, make the two groups of rivet holes on the two groups of sheet metal parts that need to be machined mutually coincide, utilize the two groups of first clamping plate installed on the top of the both sides of moving plate, utilize first clamping plate and the support table fixed on base, when driving third cylinder interior piston rod retraction, it can be clamped and fixed to the sheet metal part placed on the top of support table, then again through driving second cylinder can make positioning device move downwards, simultaneously according to the slope design of the both sides of moving block, positioning device can smoothly pass through the slot hole on support table, can avoid the risk of damage caused by manual operation when processing, also can make the precision of processing higher.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, specifically to a sheet metal riveting device for household appliances. Background Technology

[0002] Sheet metal processing is a manufacturing process. Sheet metal is lightweight, high-strength, conductive (for electromagnetic shielding), low-cost, and suitable for mass production. This allows sheet metal to meet both the functional and aesthetic requirements of products while simplifying and reducing the cost of stamping die manufacturing. It has found wide application in electronics, communications, automotive, and medical device industries. Riveting is commonly used in sheet metal processing. The advantage of riveting is its ability to reliably connect different materials (such as metal and plastic sheets), forming permanent, vibration-resistant, high-strength joints without the need for welding heat-affected zones. Therefore, it is widely used in automotive bodies, aerospace structures, electronic product housings, and building frames.

[0003] When riveting two different sets of sheet metal, existing riveting devices usually require manual positioning of the riveting holes to make them coincide. However, manual operation cannot guarantee that the holes are perfectly aligned, resulting in low accuracy.

[0004] Therefore, we propose a sheet metal riveting device for home appliances to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a sheet metal riveting device for household appliances, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A sheet metal riveting device for home appliances includes: a base, a support platform fixed on the base, movable plates installed on both sides of the support platform, a first clamping plate installed on the top of the movable plates, a positioning device installed inside the support platform, and a movable block installed on the positioning device.

[0010] It also includes: the base has two sets of grooves on both sides of the support platform, and the size of the two sets of grooves is set to allow the two sides of the movable plate to pass through, allowing the movable plate to move inside the grooves;

[0011] A set of slots is provided in the middle part of the support platform. The size of the slots is just enough for the positioning device to pass through, allowing the positioning device to move inside the slots.

[0012] The top of the positioning device has four sets of grooves, and the inner wall of each set of grooves has the same waist-shaped slot. The two sides of the moving block are respectively fixed with protruding posts that match the waist-shaped slots, allowing the moving block to move within the waist-shaped slots on the positioning device.

[0013] Furthermore, a set of top plates is fixed above the base, and a first cylinder is installed at the center of the top of the top plate. The first cylinder has a piston rod inside, and a pressure block is installed at the end of the piston rod.

[0014] Furthermore, a set of second cylinders is installed on the base below the support platform. The piston rod inside the second cylinder is threaded, and a threaded post is fixed on the bottom of the positioning device. The piston rod is connected to the positioning device through the thread, and the second cylinder is connected to the positioning device through transmission.

[0015] Furthermore, a third cylinder is provided below the base. The piston rod inside the third cylinder is also threaded. A set of countersunk holes is provided on the bottom of the moving plate. The moving plate is installed on the third cylinder by means of positioning bolts using threaded connection.

[0016] Furthermore, springs are installed inside the multiple sets of grooves on the top of the positioning device, and a slot is provided on the side of the moving block near the positioning device to allow the springs to enter, while the other side of the springs is connected to the slot inside the moving block.

[0017] Beneficial effects

[0018] Compared with the prior art, this utility model provides a sheet metal riveting device for household appliances, which has the following beneficial effects:

[0019] This invention utilizes a positioning device installed within a slot on a support platform. The rivet holes to be machined on a sheet metal part are placed on the support platform through the positioning device. Simultaneously, based on the design of the moving block on the positioning device, the spring force can adaptively adjust according to the size of the rivet holes, ensuring that the two sets of rivet holes on the two sets of sheet metal parts to be machined coincide. Two sets of first clamping plates installed on the top sides of the moving plate, along with the support platform fixed to the base, clamp and fix the sheet metal part placed above the support platform when the piston rod inside the third cylinder retracts. Then, by driving the second cylinder, the positioning device moves downwards. Furthermore, due to the inclined surface design on both sides of the moving block, the positioning device can smoothly pass through the slot on the support platform, leaving only the sheet metal parts with the two sets of rivet holes coinciding above the support platform. This avoids the risk of damage caused by manual operation during processing and also improves processing precision. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural plan view of the present utility model;

[0022] Figure 3 This is a schematic diagram of the positioning device of this utility model;

[0023] Figure 4 This is a schematic diagram of the second clamping plate structure of this utility model.

[0024] In the diagram: 1. Base; 2. Support platform; 3. Movable plate; 4. First clamping plate; 5. Positioning device; 6. Movable block; 7. Spring; 8. First cylinder; 9. Second cylinder; 10. Third cylinder; 11. Pressure block; 12. Second clamping plate; 13. Top plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example

[0027] like Figure 1-4As shown, an embodiment of this utility model discloses a sheet metal riveting device for household appliances, comprising: a base 1, a support platform 2 fixed on the base 1, movable plates 3 installed on both sides of the support platform 2, a first clamping plate 4 installed on the top of the movable plates 3, and a positioning device 5 installed inside the support platform 2 and a movable block 6 installed on the positioning device 5; further comprising: two sets of grooves respectively opened on both sides of the support platform 2 on the base 1, the size of the two sets of grooves being designed to allow the movable plates 3 to pass through on both sides, allowing the movable plates 3 to move up and down inside the grooves, a set of horizontal plates fixed below the base 1, a third cylinder 10 installed on the horizontal plate, and the piston rod inside the cylinder being connected to the recessed part opened at the bottom of the movable plates 3. The holes are aligned, and a set of positioning bolts is used to install the bottom of the moving plate 3 onto the piston rod inside the third cylinder 10. Two identical first clamping plates 4 are also installed on the top two sides of the moving plate 3. The first clamping plate 4 has a groove inside, and a track is also opened on the inside of the two sides of the groove. Two sets of sliders matching the internal dimensions of the track are fixed on the two sides of the second clamping plate 12, and the dimensions of the second clamping plate 12 are the same as the internal dimensions of the groove. The second clamping plate 12 is installed in the groove inside the first clamping plate 4 through the slider, allowing the second clamping plate 12 to move along the opening direction of the track on both sides. The second clamping plate 12 can be pulled out according to the length and width of the sheet metal part being processed to suit different situations. A set of slots is provided in the middle part of the support platform 2. A set of positioning devices 5 is installed inside the slots, and the size of the slots is just enough for the positioning devices 5 to pass through, allowing the positioning devices 5 to move in the direction of the slots inside the support platform 2. A set of threaded posts is also fixed to the bottom of the positioning devices 5. A set of second cylinders 9 is installed below the support platform 2. The piston rod inside the second cylinder 9 has a threaded hole that matches the threaded posts at the bottom of the positioning devices 5. The bottom of the positioning devices 5 is installed on the piston rod inside the second cylinder 9 through a threaded connection. The positioning devices 5 can be moved by the second cylinder 9 driving the piston rod. The moving block 6 moves within the slots on the platform 2; four sets of grooves are provided on the top of the positioning device 5, and the inner wall of each set of grooves is provided with the same waist-shaped slot. The two sides of the moving block 6 are respectively fixed with protrusions that cooperate with the waist-shaped slots on the positioning device 5, allowing the moving block 6 to move inside the waist-shaped slots on the positioning device 5. The middle part of the moving block 6 and the positioning device 5 are also provided with the same slots for installing springs 7. The two sides of the springs 7 are respectively connected to the positioning device 5 and the moving block 6, so that the moving block 6 always stays on one side of the edge inside the waist-shaped slot in the unprocessed state.

[0028] During processing, simply place the two sets of sheet metal parts to be riveted on the support platform 2. The positioning device 5 simultaneously passes through the rivet holes on both sets of sheet metal parts. As the positioning device 5 passes through the rivet holes, the inclined surfaces on both sides of the moving block 6 connected to the positioning device 5 allow the sheet metal to pass smoothly. If the rivet holes are small, the spring 7 connecting the positioning device 5 and the moving block 6 can be used to make the sheet metal retract inwards while contacting the inclined surfaces of the moving block 6. If the rivet holes are large, the spring 7 can also push the moving block 6 outwards. This method is suitable for most processing sizes. After the two sets of sheet metal parts are placed, the third cylinder 10 below the base 1 drives the piston rod to pull the moving plate 3 downwards, causing the moving plate 3... The distance between the first clamping plate 4 installed at the top and the support platform 2 is reduced, which serves to clamp and fix the parts. Then, the piston rod inside the second cylinder 9 pulls the positioning device 5 downward, allowing it to pass through the slot on the support platform 2. Since the size of the slot is the same as that of the positioning device 5, and the design of the moving block 6 with inclined surfaces on both sides allows the positioning device 5 to pass smoothly through the slot, retracting the positioning device 5 avoids obstructing the processing. At this point, only two sets of sheet metal parts with overlapping riveting holes remain above the support platform 2. Finally, the first cylinder 8 installed on the top plate 13 fixed above the base 1 drives the piston rod to press down the pressure block 11, riveting the two sets of sheet metal parts together. After processing, the moving plate 3 is driven again to remove the sheet metal parts. During the processing, no manual positioning is required, and high precision is maintained while effectively preventing personnel injury.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sheet metal riveting device for household appliances, comprising: The base (1), the support platform (2) fixed on the base (1), the movable plate (3) installed on both sides of the support platform (2), the first clamping plate (4) installed on the top of the movable plate (3), the positioning device (5) installed inside the support platform (2) and the movable block (6) installed on the positioning device (5). The base (1) is provided with two sets of grooves on both sides of the support platform (2), and the size of the two sets of grooves is set to allow the two sides of the movable plate (3) to pass through, allowing the movable plate (3) to move inside the grooves; A set of slots is provided on the middle part of the support platform (2), and the size of the slots is just enough for the positioning device (5) to pass through, allowing the positioning device (5) to move inside the slots; The top of the positioning device (5) has four sets of grooves, and the inner wall of each set of grooves has the same waist-shaped slot. The two sides of the moving block (6) are respectively fixed with protruding posts that cooperate with the waist-shaped slot, allowing the moving block (6) to move in the waist-shaped slot on the positioning device (5).

2. The appliance sheet metal riveting device according to claim 1, characterized in that: A set of top plates (13) are fixed above the base (1). The first cylinder (8) is installed at the center of the top of the top plate (13). The first cylinder (8) has a piston rod inside, and a pressure block (11) is installed at the end of the piston rod.

3. The appliance sheet metal riveting device according to claim 1, characterized in that: A set of second cylinders (9) is installed on the base (1) below the support platform (2). The piston rod inside the second cylinder (9) is threaded. A threaded column is fixed on the bottom of the positioning device (5). The piston rod and the positioning device (5) are connected by threads, so that the second cylinder (9) and the positioning device (5) are connected by transmission.

4. The appliance sheet metal riveting device according to claim 1, characterized in that: A set of third cylinders (10) is provided below the base (1). The piston rod inside the third cylinder (10) is also threaded. A set of countersunk holes are provided on the bottom of the moving plate (3). The moving plate (3) is installed on the third cylinder (10) by means of positioning bolts.

5. The appliance sheet metal riveting device according to claim 1, characterized in that: The positioning device (5) has multiple grooves on its top, each containing a spring (7). The moving block (6) has a slot on one side near the positioning device (5) that allows the spring (7) to enter. The other side of the spring (7) is connected to the slot inside the moving block (6).

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