Riveting die with disc spring mechanism

Abstract

The utility model discloses a riveting die with a disc spring mechanism. The riveting die comprises an upper die and a lower die, the upper die is composed of an upper die base, a first connecting plate, a second connecting plate, a third connecting plate, a first guide rod, an upper limiting rod, a pressing block, a pressing head, a second guide rod, a disc spring and a third guide rod, and the lower die is composed of a lower die base, a first U-shaped base, a lower connecting plate, a second U-shaped base, a third U-shaped base, a fourth U-shaped base, a lower limiting rod and a lower guide sleeve. The riveting die is provided with a preassembling station and a pressing and riveting station, preassembling and positioning of the U-shaped piece on the beam are facilitated, under the action of the elastic force of a disc spring, a certain gap exists between a combination of a second connecting plate, a third connecting plate and a pressing head and a combination of an upper die base and a first connecting plate, the combination of the second connecting plate, the third connecting plate and the pressing head and the combination of the upper die base and the first connecting plate can move up and down relatively, control over different pressing-in sizes can be achieved, and the riveting efficiency is improved. The riveting operation between the beam and the fastening piece and between the beam and the U-shaped piece can be completed by using a single riveting die.

Description

Technical Field

[0001] This utility model belongs to the field of riveting mold technology, and in particular relates to a riveting mold with a disc spring mechanism. Background Technology

[0002] Currently, when riveting beams, U-shaped parts, and fasteners, after the fasteners are riveted to the beams, the different pressing thicknesses between the fasteners and beams, and between the U-shaped parts and beams, require the replacement of the riveting molds. This not only increases the mold cost but also increases the space occupied by the riveting molds. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a riveting mold that utilizes the elastic force of a disc spring to achieve different pressing sizes.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a riveting mold with a disc spring mechanism, comprising an upper mold and a lower mold;

[0005] The upper mold consists of an upper mold base, a first connecting plate, a second connecting plate, a third connecting plate, a first guide rod, an upper limit rod, a pressure block, a pressure head, a second guide rod, a disc spring, and a third guide rod. The first connecting plate is fixedly installed on the upper mold base, the second connecting plate is fixedly connected to the third connecting plate, and the pressure head is fixedly installed on the third connecting plate. The upper mold base, the first connecting plate, the second connecting plate, and the third connecting plate are all slidably sleeved on the third guide rod. The third guide rod is fixedly connected to the upper mold base, and a stop ring for limiting the third connecting plate from detaching is fixedly sleeved at the bottom of the third guide rod. The upper mold base, the first connecting plate, and the second connecting plate are provided with a first through hole. The top surface of the connecting plate is provided with a stepped hole coaxial with the first through hole. The bottom end of the second guide rod is set with a T-shaped structure that matches the stepped hole. The upper end of the second guide rod is slidably installed in the first through hole, and the T-shaped structure at the bottom end of the second guide rod is embedded in the stepped hole. Several disc springs are slidably sleeved on the second guide rod and located in the first through hole. The pressure block is screwed and fixedly installed on the top of the upper mold base. The bottom surface of the pressure block presses against the disc springs. The pressure block has a second through hole that provides guidance for the second guide rod. The bottom of the pressure head has a notch. The first guide rod is fixedly installed on the upper mold base. The upper limit rod is fixedly installed on the third connecting plate.

[0006] The lower mold consists of a lower mold base, a first U-shaped base, a lower connecting plate, a second U-shaped base, a third U-shaped base, a fourth U-shaped base, a lower limit rod, and a lower guide sleeve. The lower connecting plate is fixedly installed on the lower mold base. The two first U-shaped bases and the fourth U-shaped base are fixedly installed on the lower connecting plate laterally. The second U-shaped base and the third U-shaped base are fixedly installed on the lower connecting plate longitudinally. The second U-shaped base is located between the two first U-shaped bases. The third U-shaped base and the fourth U-shaped base form a pre-assembly station. The second U-shaped base and the two first U-shaped bases form a riveting station. The lower limit rod corresponds to and is fixedly installed on the lower connecting plate with the upper limit rod. The lower guide sleeve is fixedly installed on the lower mold base. The first guide rod is slidably installed inside the lower guide sleeve. The first U-shaped base is provided with several riveting through holes.

[0007] Preferably, a first positioning pin is fixedly installed at the center of the U-shaped groove of the third U-shaped seat, and the top of the first positioning pin is a frustoconical structure.

[0008] Preferably, the second U-shaped seat is fixedly installed with second positioning pins on both sides, the top of the second positioning pin is a truncated cone structure, and the pressure head is provided with a first guide hole that cooperates with the second positioning pin.

[0009] Preferably, the U-shaped groove inlets of the first, second, third, and fourth U-shaped seats are all configured with an angled structure.

[0010] Preferably, a guide ring is slidably fitted onto the top of the second guide rod, and the upper and lower surfaces of the guide ring are in contact with the pressure block and the top disc spring, respectively.

[0011] Compared with the prior art, the advantages of this utility model are: the riveting mold is designed with a pre-assembly station and a pressing station, which facilitates the pre-assembly and positioning of the U-shaped part on the beam. Under the action of the disc spring, there is a certain gap between the combination of the second connecting plate, the third connecting plate, and the pressing head and the combination of the upper mold base and the first connecting plate, so that the two can move up and down relative to each other. This enables the control of different pressing dimensions. That is, the pressing operation of the beam and fastener, and the beam and U-shaped part can be completed using a single riveting mold. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a perspective view of the present invention.

[0014] Figure 2 This is the front view of this utility model.

[0015] Figure 3 It is a 3D model of the upper mold.

[0016] Figure 4This is a top view of the present invention.

[0017] Figure 5 yes Figure 4 AA-direction sectional view

[0018] Figure 6 This is the right view of the upper mold.

[0019] Figure 7 It is a 3D diagram of the pressure head.

[0020] Figure 8 This is a 3D view of the lower mold.

[0021] Figure 9 This is an assembly diagram of the workpiece after it has been riveted.

[0022] Figure 10 This is a structural diagram of the workpiece placed on the pre-assembly station. Detailed Implementation

[0023] The present invention will now be described in detail with reference to specific embodiments:

[0024] like Figures 1 to 10 The riveting mold shown includes an upper mold and a lower mold, which have a disc spring mechanism.

[0025] The upper mold consists of an upper mold base 11, a first connecting plate 12, a second connecting plate 13, a third connecting plate 14, a first guide rod 15, an upper limit rod 16, a pressure block 17, a pressure head 18, a second guide rod 1011, a disc spring 1012, and a third guide rod 1014. The first connecting plate 12 is fixedly installed on the upper mold base 11, the second connecting plate 13 is fixedly connected to the third connecting plate 14, and the pressure head 18 is fixedly installed on the third connecting plate 14. The upper mold base 11, the first connecting plate 12, and the third connecting plate 14 are all connected together. The second connecting plate 13 and the third connecting plate 14 are slidably sleeved on the third guide rod 1014. The third guide rod 1014 is fixedly connected to the upper mold base 11. A stop ring 1015 for limiting the third connecting plate 14 from dislodging is fixedly sleeved on the bottom of the third guide rod 1014. The upper mold base 11, the first connecting plate 12, and the second connecting plate 13 are provided with first through holes. The top surface of the third connecting plate 14 is provided with a stepped hole coaxial with the first through hole. The bottom end of the guide rod 1011 is configured as a T-shaped structure that mates with the stepped hole. The upper end of the second guide rod 1011 is slidably installed in the first through hole. The T-shaped structure at the bottom end of the second guide rod 1011 is embedded in the stepped hole. Several disc springs 1012 are slidably sleeved on the second guide rod 1011 and located in the first through hole. The pressure block 17 is screwed and fixedly installed on the top of the upper mold base 11. The bottom surface of the pressure block 17 presses against the disc springs 1012. The pressure block 17 has a second through hole that provides guidance for the second guide rod 1011. The bottom of the pressure head 18 has a notch 181. The first guide rod 15 is fixedly installed on the upper mold base 11. The upper limit rod 16 is fixedly installed on the third connecting plate 14. After the upper mold base 111 moves downward until the pressure head 18 contacts the workpiece, the upper mold base 111 continues to move downward. At this time, the disc spring 1012 assembly is compressed, and the second connecting plate 13, the third connecting plate 14, the second guide rod 1011, and the pressure head 18 remain stationary. The downward movement of the third connecting plate 14 and the pressure head 18 is restricted to the extreme position to prevent the pressure head 18 from contacting the lower mold and causing damage.

[0026] The lower mold consists of a lower mold base 201, a first U-shaped base 20, a lower connecting plate 21, a second U-shaped base 22, a third U-shaped base 23, a fourth U-shaped base 24, a lower limiting rod 25, and a lower guide sleeve 26. The lower connecting plate 21 is fixedly installed on the lower mold base 201. The two first U-shaped bases 20 and the fourth U-shaped base 24 are fixedly installed on the lower connecting plate 21 laterally, and the second U-shaped base 22 and the third U-shaped base 23 are fixedly installed on the lower connecting plate 21 longitudinally. The second U-shaped base 22 is positioned... Between the two first U-shaped seats 20, the third U-shaped seat 23 and the fourth U-shaped seat 24 form a pre-assembly station, and the second U-shaped seat 22 and the two first U-shaped seats 20 form a riveting station. The lower limit rod 25 corresponds to and is fixedly installed on the lower connecting plate 21, and the lower guide sleeve 26 is fixedly installed on the lower mold base 201. The first guide rod 15 is slidably installed in the lower guide sleeve 26. Several riveting through holes 2001 are provided on the first U-shaped seat 20. After the upper limit rod 16 contacts the lower limit rod 25, it can...

[0027] A first positioning pin 231 is fixedly installed at the center of the U-shaped groove of the third U-shaped seat 23. The top of the first positioning pin 231 is a frustum-shaped structure, which serves as a guide. The U-shaped part 5 has a first positioning hole, which cooperates with the first positioning pin 231 to achieve the positioning and pre-assembly of the U-shaped part 5 and the beam 3.

[0028] The second U-shaped seat 22 is fixedly installed with second positioning pins 221 on both sides. The top of the second positioning pin 221 is a truncated cone structure. The pressure head 18 is provided with a first guide hole 1801 that cooperates with the second positioning pin 221. The second positioning pin 221 cooperates with the first guide hole 1801 to improve the straightness of the pressure head 18 when it moves up and down.

[0029] The U-shaped groove entrances of the first U-shaped seat 20, the second U-shaped seat 22, the third U-shaped seat 23, and the fourth U-shaped seat 24 are all designed with beveled structures to facilitate the placement of the beam 3 and the U-shaped component 5 into the U-shaped groove.

[0030] The second guide rod 1011 is slidably fitted with a guide ring 1013 at its top. The upper and lower surfaces of the guide ring 1013 are in contact with the pressure block 17 and the top disc spring 1012, respectively. By replacing the guide ring 1013 with one of different thicknesses, the elasticity of the disc spring 1012 assembly can be adjusted.

[0031] First, beam 3 is placed on the first U-shaped seat 20 and the second U-shaped seat 22 of the riveting station. Fastener 4 is placed into the mounting hole of beam 3. U-shaped part 5 is positioned in the third U-shaped seat 23. The upper die moves downward and rivets fastener 4 into the mounting hole of beam 3 through the bottom surface of the pressure head 18. The riveting through hole 2001 on the first U-shaped seat 20 serves to accommodate fastener 4. The upper die rises and removes the riveting assembly of beam 3 and fastener 4, placing it into the fourth U-shaped seat 24 of the pre-assembly station. The beam 3 and U-shaped part 5 are pre-positioned and assembled. Then, the pre-positioned assembly of beam 3 is placed into the first U-shaped seat 20, and the pre-positioned assembly of U-shaped part 5 is placed into the second U-shaped seat 22. The upper die moves downward and rivets beam 3 and U-shaped part 5 through the bottom surface of the pressure head 18. During the riveting process, U-shaped part 5 is located in the notch 181. At this time, the riveting operation is completed.

Claims

1. A riveting die with a disc spring mechanism, characterized in that: Includes upper mold and lower mold; The upper mold consists of an upper mold base (11), a first connecting plate (12), a second connecting plate (13), a third connecting plate (14), a first guide rod (15), an upper limit rod (16), a pressure block (17), a pressure head (18), a second guide rod (1011), a disc spring (1012), and a third guide rod (1014). The first connecting plate (12) is fixedly installed on the upper mold base (11), the second connecting plate (13) is fixedly connected to the third connecting plate (14), and the pressure head (18) is... The upper mold base (11), the first connecting plate (12), the second connecting plate (13), and the third connecting plate (14) are all slidably sleeved on the third guide rod (1014). The third guide rod (1014) is fixedly connected to the upper mold base (11). A stop ring (1015) for limiting the third connecting plate (14) from falling out is fixedly sleeved at the bottom of the third guide rod (1014). The upper mold base (11) and the first connecting plate (12) are fixedly installed on the third connecting plate (14). The second connecting plate (13) is provided with a first through hole, and the top surface of the third connecting plate (14) is provided with a stepped hole coaxial with the first through hole. The bottom end of the second guide rod (1011) is provided with a T-shaped structure that mates with the stepped hole. The upper end of the second guide rod (1011) is slidably installed in the first through hole, and the T-shaped structure at the bottom end of the second guide rod (1011) is embedded in the stepped hole. Several disc springs (1012) are slidably sleeved on the second guide rod (1011). The pressure block (17) is screwed and fixedly installed on the top of the upper mold base (11). The bottom surface of the pressure block (17) presses against the disc spring (1012). The pressure block (17) has a second through hole that provides guidance for the second guide rod (1011). The bottom of the pressure head (18) has a notch (181). The first guide rod (15) is fixedly installed on the upper mold base (11). The upper limit rod (16) is fixedly installed on the third connecting plate (14). The lower mold consists of a lower mold base (201), a first U-shaped base (20), a lower connecting plate (21), a second U-shaped base (22), a third U-shaped base (23), a fourth U-shaped base (24), a lower limiting rod (25), and a lower guide sleeve (26). The lower connecting plate (21) is fixedly installed on the lower mold base (201). The two first U-shaped bases (20) and the fourth U-shaped base (24) are fixedly installed on the lower connecting plate (21) laterally. The second U-shaped base (22) and the third U-shaped base (23) are fixedly installed on the lower connecting plate (21) longitudinally. The second U-shaped base (25) is fixedly installed on the lower connecting plate (26). 2) Located between two first U-shaped seats (20), the third U-shaped seat (23) and the fourth U-shaped seat (24) form a pre-assembly station, the second U-shaped seat (22) and the two first U-shaped seats (20) form a riveting station, the lower limit rod (25) corresponds to the upper limit rod (16) and is fixedly installed on the lower connecting plate (21), the lower guide sleeve (26) is fixedly installed on the lower mold base (201), the first guide rod (15) is slidably installed in the lower guide sleeve (26), and several riveting through holes (2001) are provided on the first U-shaped seat (20).

2. The riveting mold with a disc spring mechanism according to claim 1, characterized in that: The first positioning pin (231) is fixedly installed at the center of the U-shaped groove of the third U-shaped seat (23), and the top of the first positioning pin (231) is a frustum-shaped structure.

3. The riveting mold with a disc spring mechanism according to claim 1, characterized in that: The second U-shaped seat (22) is fixedly installed with second positioning pins (221) on both sides. The top of the second positioning pin (221) is a frustum structure. The pressure head (18) is provided with a first guide hole (1801) that cooperates with the second positioning pin (221).

4. The riveting mold with a disc spring mechanism according to claim 1, characterized in that: The U-shaped groove entrances of the first U-shaped seat (20), the second U-shaped seat (22), the third U-shaped seat (23), and the fourth U-shaped seat (24) are all set with an angled structure.

5. The riveting mold with a disc spring mechanism according to claim 1, characterized in that: The second guide rod (1011) is slidably fitted with a guide ring (1013) at its top, and the upper and lower surfaces of the guide ring (1013) are in contact with the pressure block (17) and the top disc spring (1012) respectively.

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