A press-riveting tool for assembling a header pipe and a partition
By designing the riveting assembly of the press-riveting fixture, the problem of unstable connection between the baffle and the manifold was solved, achieving a stable connection between the baffle and the manifold and enhancing the connection strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN DONGLI INTELLIGENT TECH CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-06-05
AI Technical Summary
In the existing technology, the snap-fit connection method between the manifold and the partition of the vehicle refrigerator causes the partition to loosen and the connection to be unstable.
Design a press-fit tooling, including a lower die assembly and an upper die assembly. Through the punch and push block structure of the press-fit assembly, the partition and the manifold are press-fitted together, thereby enhancing the connection strength.
This effectively enhances the connection strength between the baffle and the manifold, ensuring a stable connection between them.
Smart Images
Figure CN224322224U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of riveting fixture technology, and relates to a riveting fixture for assembling manifolds and baffles. Background Technology
[0002] The in-vehicle refrigerator manifold assembly mainly consists of a manifold and a partition. During installation, the partition needs to be installed on the manifold. In the existing technology, the installation method between the manifold and the partition is mainly a snap-fit connection. However, simply snapping the partition onto the manifold often results in the partition becoming loose due to the gap between the partition and the manifold. Summary of the Invention
[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a press-fitting fixture that enables a stable connection between the partition and the manifold.
[0004] The objective of this utility model can be achieved through the following technical solution: a riveting fixture for assembling a manifold and a baffle, comprising:
[0005] The lower die assembly has multiple punching and riveting components on both sides of its top surface. The lower die assembly includes a base plate and a lower template plate disposed on the base plate.
[0006] The upper die assembly is movably located directly above the upper die assembly. The upper die assembly can press the partition into the manifold. Each of the punching and riveting assemblies includes a fixing block on the lower die plate and a fixing seat on the base plate. A punch capable of riveting one end of the partition to the side of the manifold corresponding to the fixing block is movably inserted in the fixing block. A push block for pushing the punch relative to the fixing block is movably inserted in the fixing seat. The upper die assembly can drive the push block to move relative to the fixing seat.
[0007] In the aforementioned riveting fixture for assembling manifolds and baffles, the lower template has stop blocks at both ends.
[0008] In the aforementioned riveting fixture for assembling manifolds and baffles, the end of the punch furthest from the push block can pass through the fixing block.
[0009] In the aforementioned riveting fixture for assembling manifolds and baffles, a contact block is provided at one end of the punch near the push block, a first spring is provided between the contact block and the fixing block, and the contact block is in contact with the push block.
[0010] In the above-mentioned riveting fixture for assembling manifolds and baffles, a clamping plate is provided on the side of the push block away from the punch. The clamping plate is inclined relative to the push block. A groove is provided in the fixed seat. The two sides of the clamping plate are slidably clamped in the two sides of the groove.
[0011] In the above-mentioned riveting fixture for assembling manifolds and baffles, the slot is provided with an inclined surface, the inclined surface is inclined relative to the fixed seat, and the side of the clamping plate away from the push block is attached to the inclined surface.
[0012] In the aforementioned riveting fixture for assembling manifolds and baffles, the base plate is provided with a second spring for pushing the corresponding push block to reset, and each of the fixed seats is provided with a through hole for the second spring to pass through.
[0013] In the aforementioned riveting fixture for assembling manifolds and baffles, the push block has a stepped groove on the side facing the clamping plate, and one end of the second spring is in contact with the stepped groove.
[0014] In the above-mentioned riveting fixture for assembling manifolds and baffles, the upper mold assembly includes a lifting plate and an upper template disposed on the lifting plate. The lifting plate is provided with a drive block for pushing the push block to move relative to the fixed seat.
[0015] In the above-mentioned riveting fixture for assembling manifolds and baffles, the upper template is provided with a push pin for pressing the baffle. The end of the push pin is flush with the side of the lower template away from the lifting plate. The thickness of the upper template is greater than the height of the drive block.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] In this invention, when the upper mold assembly descends to a predetermined height, the upper mold assembly pushes each riveting assembly, and the riveting assemblies located at both ends of the partition plate apply pressure to both ends of the partition plate to achieve the riveting connection between the two ends of the partition plate and the manifold. In this way, the connection strength between the partition plate and the manifold can be effectively enhanced. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of a preferred embodiment of the present invention.
[0019] Figure 2 This is a structural schematic diagram of the upper mold assembly.
[0020] Figure 3 This is an assembly diagram of the lower die assembly and the riveting assembly.
[0021] Figure 4 yes Figure 3 A structural diagram from another perspective.
[0022] Figure 5 yes Figure 4 Sectional view at AA.
[0023] Figure 6 It is an assembly diagram of the fixing block and the punch.
[0024] Figure 7 This is an assembly diagram of the push block and the second spring.
[0025] Figure 8 This is a structural diagram of the fixed base.
[0026] Figure 9 yes Figure 8 Sectional view at BB. Detailed Implementation
[0027] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0028] like Figure 1 — Figure 9 As shown, the present invention provides a riveting fixture for assembling manifolds and baffles, comprising a lower die assembly 100, a riveting punch assembly 200, and an upper die assembly 300.
[0029] In this utility model, the manifold 500 is provided with an installation groove (not shown in the figure) for the partition 510 to be inserted. When the partition 510 is inserted into the installation groove, both ends of the partition 510 are located outside the manifold 500.
[0030] Multiple riveting assemblies 200 are provided on both sides of one side of the lower die assembly 100. The upper die assembly 300 is movably positioned directly above the upper die assembly 100. The upper die assembly 300 can press the partition plate 510 into the manifold 500 and drive the riveting assemblies 200 to rivet the two ends of the partition plate 510 to the corresponding sides of the manifold 500. When using this riveting fixture, the partition plate 510 must first be pre-installed into the corresponding mounting groove of the manifold 500, and then the manifold 500 is positioned and placed on the lower die assembly 100. Then, the upper mold assembly 300 is pressed down. During this process, the lower mold assembly 100 pushes each partition 510 into the mounting groove. When the bottom edge of the partition 510 abuts against the bottom surface of the mounting groove, the upper mold assembly 300 pushes each riveting assembly 200. The riveting assemblies 200 located at both ends of the partition 510 apply pressure to both ends of the partition 510 to achieve the riveting connection between the two ends of the partition 510 and the manifold 500. In this way, the connection strength between the partition 510 and the manifold 500 can be effectively enhanced.
[0031] The lower mold assembly 100 includes a base plate 110 and a lower template 120 disposed on the base plate 110. The lower template 120 has stops 121 at both ends. When the manifold 500 is placed on the lower mold assembly 100, the two ends of the manifold 500 need to abut against the corresponding stops 121, so that the manifold 500 is located in the middle of the lower template 120. In this way, the manifold 500 will be surrounded by multiple punching and riveting components 200 and two stops 121, thereby realizing the positioning of the manifold 500 on the lower template 120.
[0032] Each of the aforementioned punching and riveting assemblies 200 includes a fixing block 210 disposed on the lower template 120 and a fixing seat 220 disposed on the base plate 110. A punch 211 is movably disposed within the fixing block 210, and a push block 221 for pushing the punch 211 relative to the fixing block 210 is movably disposed within the fixing seat 220. The end of the punch 211 away from the push block 221 can pass through the fixing block 210, and the end of the punch 211 near the push block 221 is provided with a contact block 212. A first spring 213 is provided between the contact block 212 and the fixing block 210. The contact block 212 is in contact with the push block 221, and the top end of the push block 221 can extend out of the top surface of the fixing seat 220. When the upper die assembly 300 pushes the push block 221 to tilt and descend relative to the fixing seat 220, the push block 221 will push the contact block 212 because the push block 221 is always in contact with the contact block 212. Block 212 and punch 211 move toward the end of partition 510, and the first spring 213 is compressed so that punch 211 can squeeze partition 510, thereby causing physical deformation at both ends of partition 510. That is, when the end of partition 510 is deformed, it will extend to both sides, thereby increasing the squeezing force between the two ends of partition 510 and the mounting groove, so as to realize the press-fit connection between the two ends of partition and the side of the manifold. In this way, the connection strength between partition 510 and manifold 500 can be effectively improved. When the upper mold assembly 300 stops squeezing push block 221, push block 221 will automatically reset. At the same time, since the contact block 212 is fixed to punch 211, and the first spring 213 is provided between contact block 212 and fixed block 210, the first spring 213 will push contact block 212 and punch 211 to reset, so that contact block 212 is always in contact with push block 221.
[0033] Furthermore, at least one riveting head 211a for pressing the partition is provided at the end of the punch 211 away from the contact block, and the end of each riveting head away from the punch is in the shape of a straight line; in addition, when the punch rivets the ends of the partition, the middle part of the partition abuts against the inner wall of the mounting groove, thereby preventing the middle part of the partition from deforming during the riveting process, so as to ensure that the punch can smoothly rivet both ends of the partition.
[0034] A retaining plate 222a is provided on the side of the push block 221 away from the punch 211. The retaining plate 222a is inclined relative to the push block 221. A retaining groove 223 is provided in the fixed base 220. The two sides of the retaining plate 222a are slidably engaged in the two sides of the retaining groove 223. When the push block 221 is pressed by the upper mold assembly 300, the two sides of the retaining plate 222a will move along the trajectory of the two sides of the retaining groove 223, so that the push block 221 can move downwards at an angle relative to the fixed base 220. Furthermore, since the retaining groove 223 is inclined relative to the fixed base 220, and the angle between the retaining plate 222a and the horizontal plane is the same as the angle between the retaining groove 223 and the horizontal plane, the side of the push block 221 away from the retaining plate 222a is set as a vertical surface 222c, so that the vertical surface 222c is always perpendicular to the horizontal plane, thereby smoothly pushing the contact block 212 and the punch 211 to move relative to the fixed block 210.
[0035] The slot 223 is provided with an inclined surface 223a, which is inclined relative to the fixed base 220. The side of the card plate 222a away from the push block 221 is attached to the inclined surface 223a. When the push block 221 moves relative to the fixed base 220, the card plate 222a will always be attached to the inclined surface 223a, thereby further increasing the contact area between the push block 221 and the fixed base 220 and improving the stability of the push block 221 during the movement.
[0036] The base plate 110 is provided with a second spring 230 for pushing the corresponding push block 221 to reset. Each fixed seat 220 is provided with a through hole 224 for the second spring 230 to pass through. The push block 221 is provided with a stepped groove 222b on the side facing the card plate 222a. One end of the second spring 230 is in contact with the top of the stepped groove 222b. The width of the top of the stepped groove 222b is greater than the diameter of the second spring 230. When the push block 221 moves downward relative to the fixed seat 220, the second spring 230 is compressed. When the upper mold assembly 300 no longer presses the push block 221, the push block 221 is pushed upward relative to the fixed seat 220 by the action of the second spring 230.
[0037] The upper mold assembly 300 includes a lifting plate 310 and an upper template 320 disposed on the lifting plate 310. The lifting plate 310 is provided with a driving block 330 for pushing the push block 221 to move relative to the fixed seat 220. When the upper template 320 descends to a predetermined height, the driving block 330 will contact the top of the push block 221 and apply a force to the push block 221, thereby driving the driving block 330 to tilt downward relative to the fixed seat 220.
[0038] The upper template 320 is equipped with ejector pins 321 for pressing the partitions 510. The end of the ejector pin 321 is flush with the side of the lower template 120 away from the lifting plate 310. The thickness of the upper template 320 is greater than the height of the drive block 330. Multiple ejector pins 321 are positioned directly above each partition 510. When the upper template 320 descends with the lifting plate 310, the ejector pins 321 press the corresponding partition 510 into the corresponding mounting groove. Once the bottom of the partition 510 abuts against the bottom of the mounting groove, the drive block 330 will engage... When the top of the push block 221 is touched and pushed to move downward at an angle, the punch 211 will squeeze the end of the partition 510 and deform the end of the partition 510. At the same time, the ejector pin 321 will also deform at the top edge of the partition 510 and leave a pin hole corresponding to the shape of the ejector pin 321. In this way, the squeezing force between the top edge of the partition 510 and the manifold 500 and the squeezing force between the end of the partition 510 and the manifold 500 can be effectively increased, thereby effectively improving the connection strength between the partition 510 and the manifold 500.
[0039] A top plate 400 is provided directly above the base plate 110. Multiple guide rods 410 are provided between the top plate 400 and the base plate 110. The guide rods 410 pass through the lifting plate 310. A cylinder 420 is provided on the top plate 400 to drive the lifting plate 310 to move. When the cylinder 420 is working, the cylinder 420 will carry the lifting plate 310 up and down along the trajectory of the guide rods 410.
[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0041] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0043] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
Claims
1. A press-fitting fixture for assembling manifolds and baffles, characterized in that, include: The lower die assembly has multiple punching and riveting components on both sides of its top surface. The lower die assembly includes a base plate and a lower template plate disposed on the base plate. The upper die assembly is movably located directly above the upper die assembly. The upper die assembly can press the partition into the manifold. Each of the punching and riveting assemblies includes a fixing block on the lower die plate and a fixing seat on the base plate. A punch capable of riveting one end of the partition to the side of the manifold corresponding to the fixing block is movably inserted in the fixing block. A push block for pushing the punch relative to the fixing block is movably inserted in the fixing seat. The upper die assembly can drive the push block to move relative to the fixing seat.
2. The press-fitting fixture for assembling a manifold and a baffle plate according to claim 1, characterized in that, The lower template is provided with stop blocks at both ends.
3. The press-fitting fixture for assembling a manifold and a baffle plate according to claim 1, characterized in that, The end of the punch away from the pusher can pass through the fixing block.
4. A riveting fixture for assembling a manifold and a baffle plate according to claim 3, characterized in that, The punch has a contact block at one end near the push block, and a first spring is provided between the contact block and the fixed block. The contact block is in contact with the push block.
5. A press-fitting fixture for assembling a manifold and a baffle plate according to claim 4, characterized in that, The push block has a retaining plate on the side away from the punch. The retaining plate is inclined relative to the push block. The fixed base has a retaining groove. The two sides of the retaining plate are slidably engaged in the retaining groove.
6. A press-fitting fixture for assembling a manifold and a baffle plate according to claim 5, characterized in that, The slot has an inclined surface, which is tilted relative to the fixed seat, and the side of the card plate away from the push block is attached to the inclined surface.
7. A press-fitting fixture for assembling a manifold and a baffle plate according to claim 6, characterized in that, The base plate is provided with a second spring for pushing the corresponding push block to reset, and each of the fixed seats is provided with a through hole for the second spring to pass through.
8. A riveting fixture for assembling a manifold and a baffle plate according to claim 7, characterized in that, The push block has a stepped groove on the side facing the card plate, and one end of the second spring is connected to the stepped groove in contact.
9. A press-fitting fixture for assembling a manifold and a baffle plate according to claim 1, characterized in that, The upper mold assembly includes a lifting plate and an upper template disposed on the lifting plate. The lifting plate is provided with a drive block for pushing the push block to move relative to the fixed seat.
10. A press-fitting fixture for assembling a manifold and a baffle plate according to claim 9, characterized in that, The upper template is equipped with a push pin for pressing the partition plate. The end of the push pin is flush with the side of the lower template away from the lifting plate. The thickness of the upper template is greater than the height of the drive block.