Riveting device for assembling water heater shell

Abstract

The utility model discloses a riveting device for assembling a water heater shell, which comprises a cover plate, a sealing baffle ring and a riveting machine, and further comprises an anti-inclination assembly which is arranged on a working table and used for preventing a rivet from inclining in the riveting process of the cover plate and the sealing baffle ring, and the anti-inclination assembly comprises a mounting plate fixedly connected to the working table, a mounting hole is formed in the side, away from the workbench, of the mounting plate, a mounting ring is slidably connected to the mounting hole, the side, close to the workbench, of the mounting ring is sealed, and an anti-inclination plate is connected to the interior of the mounting ring through a plurality of extrusion assemblies. According to the riveting device for assembling the water heater shell, due to the arrangement of the anti-inclination assembly, under the matching action of the extrusion assembly and the telescopic assembly, the supporting contact area of the rivet is increased, the rivet is subjected to annular and centered extrusion pushing force, and therefore the risk that the rivet inclines when being stressed and punched is reduced.

Description

Technical Field

[0001] This utility model relates to the field of water heater shell assembly technology, specifically a riveting device for assembling water heater shells. Background Technology

[0002] The outer casing of a gas water heater typically consists of a housing and a cover. The cover usually has mounting positions for components such as an operation panel, display screen, and switch buttons. A sealing ring is riveted to the side of the cover near the housing to improve the sealing between the cover and the housing.

[0003] When riveting a cover plate and a sealing ring, the rivet is first inserted into the riveting holes of the cover plate and the sealing ring. Then, the punch of the riveting machine is used to plastically deform the rivet through a pressure device, thereby achieving the riveting between the cover plate and the sealing ring. In the actual riveting process, the diameter of the riveting hole is slightly larger than the diameter of the rivet. Although this makes it easier to insert the rivet, the thickness of the riveting joint between the cover plate and the sealing ring is relatively thin, resulting in insufficient support area for the rivet. This can easily cause the rivet to tilt during riveting, thus affecting the riveting strength between the cover plate and the sealing ring.

[0004] Therefore, there is an urgent need for a riveting device for assembling water heater shells to solve the above problems. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a riveting device for assembling a water heater shell, comprising a cover plate, a sealing ring, and a riveting machine. Multiple L-shaped brackets are fixedly connected to the side of the cover plate near the sealing ring. Each L-shaped bracket and the sealing ring are respectively provided with riveting holes. The riveting machine consists of a frame and a worktable mounted on the frame. The frame is connected to a punch via a cylinder. It also includes an anti-tilting component mounted on the worktable to prevent the rivets from tilting during the riveting process of the cover plate and the sealing ring.

[0006] The anti-tilt assembly includes a mounting plate fixedly connected to the workbench. The mounting plate has a mounting hole on the side away from the workbench. A mounting ring is slidably connected to the mounting hole. The side of the mounting ring closest to the workbench is sealed. An anti-tilt plate is connected inside the mounting ring through multiple extrusion components. The mounting hole is provided with a telescopic component for extending and retracting the mounting ring.

[0007] Each of the anti-tilt plates has an inclined guide plate fixedly connected to its opposite ends.

[0008] The mounting plate has a mounting cavity, and a fixing rod is fixedly connected to the bottom wall of the mounting cavity. The end of the fixing rod away from the workbench is flush with the mounting plate, and the mounting ring is slidably connected to the side wall of the fixing rod.

[0009] The extrusion assembly includes an extrusion tube fixedly connected to the inner wall of the mounting ring, an extrusion rod slidably connected to the extrusion tube, one end of the extrusion rod being connected to an anti-tilt plate, the end of the extrusion rod away from the anti-tilt plate being located inside the extrusion tube and fixedly connected to an extrusion plate, a compression spring being fixedly connected to the side of the extrusion plate away from the extrusion rod, the other end of the compression spring being connected to the bottom wall of the extrusion tube, and the extrusion tube being provided with a guide assembly for guiding the movement of the extrusion plate.

[0010] The guiding assembly includes two symmetrically arranged guide grooves formed on the side wall of the extrusion tube, and guide plates are slidably connected to the two guide grooves. The opposite ends of the two guide plates are connected to the extrusion plate.

[0011] The telescopic assembly includes a plurality of telescopic rods arranged in a ring array and slidably connected to the bottom wall of the mounting hole. One end of each telescopic rod is connected to the mounting ring, and the other end of each telescopic rod is located inside the mounting cavity and is fixedly connected to a fixing ring. A telescopic spring is sleeved on the side wall of each telescopic rod inside the mounting cavity, and both ends of each telescopic spring are connected to the fixing ring and the inner wall of the mounting cavity, respectively.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The riveting device for assembling the water heater shell of this utility model, through the setting of the anti-tilting component, increases the support contact area of ​​the rivet under the cooperation of the extrusion component and the telescopic component, so that the rivet is subjected to the annular extrusion pushing force in the center, thereby reducing the risk of the rivet tilting when subjected to force and pressing, and thus improving the riveting strength and riveting effect between the cover plate and the sealing retaining ring. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the cover plate and sealing ring structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the riveting machine structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the anti-tilt component of this utility model;

[0018] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0019] In the diagram: 101, cover plate; 102, sealing ring; 103, L-shaped bracket; 104, rivet hole; 105, frame; 106, cylinder; 107, punch; 108, worktable; 201, mounting plate; 202, mounting hole; 203, mounting ring; 204, anti-tilt plate; 205, guide plate; 206, mounting cavity; 207, fixing rod; 301, extrusion tube; 302, extrusion rod; 303, extrusion plate; 304, extrusion spring; 401, guide groove; 402, guide plate; 501, telescopic rod; 502, fixing ring; 503, telescopic spring. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please see Figures 1-5 The figure shows a riveting device for assembling a water heater shell, including a cover plate 101, a sealing ring 102, and a riveting machine. Multiple L-shaped brackets 103 are fixedly connected to the side of the cover plate 101 near the sealing ring 102. Each L-shaped bracket 103 and the sealing ring 102 are respectively provided with riveting holes 104. The riveting machine consists of a frame 105 and a worktable 108 set on the frame 105. The frame 105 is connected to a punch 107 through a cylinder 106. It also includes an anti-tilting component set on the worktable 108 to prevent the rivets from tilting during the riveting process of the cover plate 101 and the sealing ring 102.

[0023] The anti-tilt component includes a mounting plate 201 fixedly connected to the worktable 108. The mounting plate 201 has a mounting hole 202 on the side away from the worktable 108. A mounting ring 203 is slidably connected to the mounting hole 202. The side of the mounting ring 203 closest to the worktable 108 is sealed. An anti-tilt plate 204 is connected inside the mounting ring 203 through multiple extrusion components. The mounting hole 202 is provided with a telescopic component for extending and retracting the mounting ring 203.

[0024] It should be noted that by setting up the anti-tilting component, the supporting contact area of ​​the rivet is increased under the combined action of the extrusion component and the telescopic component, so that the rivet is subjected to a centrally located annular extrusion force, thereby reducing the risk of the rivet tilting when subjected to force and pressure, and thus improving the riveting strength and riveting effect between the cover plate 101 and the sealing retaining ring 102.

[0025] It is worth noting that the specific structure and working principle of riveting machines are already known to those in the field, and will not be elaborated upon here.

[0026] Even more optimized is that the rivets can be automatically fed by the feeding equipment, and the riveting between the cover plate 101 and the sealing ring 102 can be adjusted and changed by a robot to achieve automatic riveting operation.

[0027] Please see Figure 4 and Figure 5 In the diagram, each anti-tilt plate 204 has an inclined guide plate 205 fixedly connected to its opposite ends.

[0028] It should be noted that the inclined guide plate 205 can guide the insertion of the rivet, and at the same time, when the anti-tilt plate 204 moves down, it provides an interaction force with the fixing rod 207, thereby causing the anti-tilt plates 204 to separate from each other. Since there are multiple sets of anti-tilt plates 204 arranged in a ring, when one set separates from the rivet, the other sets can still maintain the compression of the rivet.

[0029] Please see Figure 4 and Figure 5 The mounting plate 201 shown in the figure has a mounting cavity 206. A fixing rod 207 is fixedly connected to the bottom wall of the mounting cavity 206. The end of the fixing rod 207 away from the worktable 108 is flush with the mounting plate 201. The mounting ring 203 is slidably connected to the side wall of the fixing rod 207.

[0030] It should be noted here that the fixing rod 207 provides a rigid compressive force to the rivet during riveting.

[0031] Please see Figure 4 and Figure 5 The extrusion assembly shown in the figure includes an extrusion tube 301 fixedly connected to the inner wall of the mounting ring 203. An extrusion rod 302 is slidably connected to the extrusion tube 301. One end of the extrusion rod 302 is connected to the anti-tilt plate 204. The end of the extrusion rod 302 away from the anti-tilt plate 204 is located inside the extrusion tube 301 and is fixedly connected to an extrusion plate 303. An extrusion spring 304 is fixedly connected to the side of the extrusion plate 303 away from the extrusion rod 302. The other end of the extrusion spring 304 is connected to the bottom wall of the extrusion tube 301. The extrusion tube 301 is provided with a guide assembly for guiding the movement of the extrusion plate 303.

[0032] It should be noted here that the setting of the extrusion assembly is used to push the side wall of the anti-tilt plate 204 against the surface of the rivet.

[0033] Please see Figure 4 and Figure 5The guide assembly shown in the figure includes two symmetrically arranged guide grooves 401 opened on the side wall of the extrusion tube 301. The two guide grooves 401 are slidably connected to guide plates 402, and the opposite ends of the two guide plates 402 are connected to the extrusion plate 303.

[0034] It should be noted here that the guide component is used to guide and limit the movement of the extrusion plate 303.

[0035] Working principle: When riveting the cover plate 101 and the sealing ring 102, firstly, connect and assemble the sealing ring 102 to the cover plate 101, aligning each rivet hole 104 on the sealing ring 102 with the rivet holes 104 on the L-shaped bracket 103. Then, place the connected and assembled cover plate 101 and sealing ring 102 on the end face of the mounting ring 203 on the mounting plate 201, ensuring that one of each rivet hole 104 is concentrically aligned with the mounting ring 203. Then, the rivets can be sequentially inserted from the L-shaped bracket 101. The rivet holes 104 on the sealing ring 102 pass through the rivet, and as the rivet is continuously inserted, the rivet is positioned between the anti-tilt plates 204 in the mounting ring 203 (the end of the rivet near the punch 107 is kept at the same height or slightly higher than the side wall of the sealing ring 102). Each anti-tilt plate 204 abuts against the rivet side under the squeezing action of the squeezing assembly. In turn, the circumferential squeezing action of each anti-tilt plate 204 increases the support contact area of ​​the rivet, thereby reducing the risk of the rivet tilting when subjected to force and punching.

[0036] After the rivet is inserted into the rivet hole 104, the cylinder 106 can be activated to push the punch 107 closer to the rivet. When the punch 107 abuts against the end face of the rivet, it will push the sealing retaining ring 102 closer to the mounting plate 201 under the punching force. Under the pushing force, the mounting ring 203 will be pushed to retract into the mounting hole 202. When the anti-tilting plates 204 in the mounting ring 203 abut against the end face of the fixing rod 207, they will move away from the rivet under the interaction force of the guide plate 205 and the fixing rod 207 and the guiding action of the extrusion assembly. When one end of the rivet abuts against the end face of the fixing rod 207, the inner wall of the sealing retaining ring 102 will contact the end face of the mounting plate 201 (with... Taking manual operation as an example, when the mounting ring 203 moves down, the sealing ring 102 and the cover plate 101 should be continuously pushed down. This ensures that the inner wall of the sealing ring 102 contacts the end face of the mounting plate 201 before the rivet deforms. As the punch 107 continues to press down, axial pressure will be applied to the rivet. Under the action of pressure, the tail of the rivet gradually deforms, fills the rivet hole 104 and expands outward to form an upsetting head, thus realizing the riveting of the cover plate 101 and the sealing ring 102. Following the same operation method, the remaining rivets are riveted step by step from the center to the edge or from the edge to the center, thus completing the riveting between the cover plate 101 and the sealing ring 102.

[0037] Example 2

[0038] Please see Figure 4 This embodiment further illustrates Example 1. The telescopic assembly shown in the figure includes a plurality of telescopic rods 501 arranged in a ring array and slidably connected to the bottom wall of the mounting hole 202. One end of each telescopic rod 501 is connected to the mounting ring 203, and the other end of each telescopic rod 501 is located in the mounting cavity 206 and is fixedly connected to a fixing ring 502. A telescopic spring 503 is sleeved on the side wall of each telescopic rod 501 inside the mounting cavity 206. Both ends of each telescopic spring 503 are respectively connected to the fixing ring 502 and the inner wall of the mounting cavity 206.

[0039] It should be noted here that the telescopic component is used to guide and reset the movement of the mounting ring 203. Furthermore, the elasticity of the telescopic component can absorb a portion of the riveting force at the start of riveting, thereby facilitating the uniform transmission of pressure to the sealing ring 102 and reducing deformation caused by excessive local pressure.

[0040] It should be emphasized that the elastic force of the extension spring 503 is greater than that of the compression spring 304.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A riveting device for assembling a water heater shell, comprising: a cover plate (101), a sealing baffle ring (102) and a riveting machine, a plurality of L-shaped supports (103) are fixedly connected to one side of the cover plate (101) close to the sealing baffle ring (102), a rivet hole (104) is formed in each of the L-shaped supports (103) and the sealing baffle ring (102) respectively, the riveting machine is composed of a rack (105) and a workbench (108) arranged on the rack (105), and a punch (107) is connected to the rack (105) through a pneumatic cylinder (106); characterized in that it further comprises: an anti-inclination assembly arranged on the workbench (108) for preventing the rivet from being inclined during the riveting process of the cover plate (101) and the sealing baffle ring (102); the anti-inclination assembly comprises a mounting plate (201) fixedly connected to the workbench (108), an installation hole (202) is formed in one side of the mounting plate (201) away from the workbench (108), an installation ring (203) is slidably connected to the installation hole (202), the installation ring (203) is arranged in a sealed manner on one side close to the workbench (108), a plurality of extrusion assemblies are connected to an anti-inclination plate (204) inside the installation ring (203), and the installation hole (202) is provided with an extension assembly for extending the installation ring (203).

2. A riveting device for assembling a water heater shell according to claim 1, wherein: opposite ends of each of the anti-inclination plates (204) are fixedly connected with inclined guide plates (205).

3. A riveting device for assembling a water heater shell according to claim 2, wherein: the mounting plate (201) is provided with a mounting cavity (206), a fixing rod (207) is fixedly connected to the bottom wall of the mounting cavity (206), one end of the fixing rod (207) away from the workbench (108) is arranged flush with the mounting plate (201), and the installation ring (203) is slidably connected to the side wall of the fixing rod (207).

4. A riveting device for assembling a water heater shell according to claim 3 wherein: the extrusion assembly comprises an extrusion tube (301) fixedly connected to the inner wall of the installation ring (203), an extrusion rod (302) is slidably connected to the extrusion tube (301), one end of the extrusion rod (302) is connected with the anti-inclination plate (204), the other end of the extrusion rod (302) away from the anti-inclination plate (204) is located in the extrusion tube (301) and is fixedly connected with an extrusion plate (303), an extrusion spring (304) is fixedly connected to one side of the extrusion plate (303) away from the extrusion rod (302), the other end of the extrusion spring (304) is connected with the bottom wall of the extrusion tube (301), and the extrusion tube (301) is provided with a guide assembly for guiding the movement of the extrusion plate (303).

5. A riveting device for assembling a water heater shell according to claim 4 wherein: the guide assembly comprises two symmetrically arranged guide grooves (401) formed in the side wall of the extrusion tube (301), guide plates (402) are slidably connected to the two guide grooves (401), and opposite ends of the two guide plates (402) are connected with the extrusion plate (303).

6. A riveting device for assembling a water heater shell according to claim 5 wherein: The telescopic assembly comprises a plurality of telescopic rods (501) arranged in an annular array and connected to the bottom wall of the mounting hole (202) in a sliding manner, one end of each telescopic rod (501) is connected to the mounting ring (203), the other end of each telescopic rod (501) is located in the mounting cavity (206) and is fixedly connected to the fixing ring (502), the side wall inside the mounting cavity (206) is sleeved with a telescopic spring (503), and the two ends of each telescopic spring (503) are connected to the fixing ring (502) and the inner wall of the mounting cavity (206) respectively.

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