Self-locking clamping mechanism

By designing a self-locking clamping mechanism, using components such as a base, a locker, clamping table and limit rod, the problem of unstable fixation during the processing of EGR cooler is solved, and the stable clamping and processing stability of EGR cooler is achieved.

CN222627496UActive Publication Date: 2025-03-18SUZHOU AOMEIGE INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202421149138.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-24
Publication Date
2025-03-18
Estimated Expiration
2034-05-24

AI Technical Summary

Technical Problem

During the processing of EGR cooler, it is difficult for the prior art to effectively fix the EGR cooler, resulting in possible displacement deviations during the processing, affecting processing stability.

Method used

A self-locking clamping mechanism is designed, including a base, a fixed lock, a movable lock, a clamping table, a limiting rod and a clamping drive member. The machining space is provided by the mating of the abutment and the cab. The mating of the clamping table and the limiting rod is fixed, and the clamping of different models of EGR coolers is achieved through the clamping drive member to form a self-locking structure to ensure stability.

Benefits of technology

The stable fixation and clamping of the EGR cooler is achieved, which avoids displacement deviation caused by stress during processing, and ensures the stability and accuracy of the EGR cooler processing process.

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Abstract

The utility model relates to the technical field of EGR cooler machining, in particular to a self-locking clamping mechanism which comprises a base table clamping seat arranged on the rear side of a base table, two sets of limiting rods hinged end to end are arranged between a clamping table and a movable clamping seat, the two ends of the two sets of limiting rods are hinged to the movable clamping seat and the clamping table respectively, and a clamping driving piece is arranged on the clamping table. The movable end of the clamping driving piece is connected with the hinged point between the two sets of limiting rods, and in order to avoid the situation that in the machining process, the EGR cooler has displacement deviation after being stressed in the machining process, the two ends of the two sets of limiting rods are arranged to be hinged to the movable clamping base and the clamping table correspondingly; the movable end of the clamping driving piece is connected with the hinged point between the two sets of limiting rods, the clamping driving piece is used for driving the movable clamping base to clamp or loosen the EGR cooler, in the EGR cooler machining process, the two sets of limiting rods hinged end to end form a self-locking structure, and therefore the use stability of the EGR cooler in the EGR cooler machining process is guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of EGR cooler processing, in particular to a self-locking clamping mechanism. Background Art

[0002] Nitrogen oxides are one of the exhaust emissions from automobiles. Nitrogen oxides can form optical pollution and acid rain, causing harm to humans and animals. In order to reduce the harm of nitrogen oxides to the environment and humans, people install EGR systems on cars. EGR coolers are one of the important components of EGR systems. The EGR cooler shell includes multiple heat exchange tubes, most of which are round tubes. In order to increase the heat exchange area, threads are often opened on the outer wall of the round tube. Round tubes occupy a large space. In order to improve the problem of large space occupied by round tubes, flat tubes are used instead of round tubes in related technologies. In order to ensure the stability of the cooler during use and the stability during the process, and to avoid the displacement deviation during processing affecting the processing stability of the EGR cooler, the EGR cooler needs to be fixed. After the EGR cooler is fixed, how to ensure its stability after being subjected to force during subsequent processing, therefore, a self-locking clamping mechanism is required. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a self-locking clamping mechanism for solving the problem of fixing the EGR cooler during the processing in the prior art.

[0004] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0005] A self-locking clamping mechanism, comprising:

[0006] A base, wherein a base holder is provided at the rear side of the base;

[0007] The card seat is arranged at the front side of the base, and the card seat is symmetrically provided with two groups, including a group of fixed card seats and a group of movable card seats slidably connected to the base along the length direction of the base;

[0008] The clamping assembly includes a clamping platform arranged at one end of the base, two groups of limit rods hinged end to end are arranged between the clamping platform and the movable clamping seat, the two ends of the two groups of limit rods are respectively hinged to the movable clamping seat and the clamping platform, and a clamping drive member is provided on the clamping platform, and the movable end of the clamping drive member is connected to the hinge point between the two groups of limit rods.

[0009] To implement the above technical scheme, the base and the clamping seat cooperate with each other to provide a processing space for the EGR cooler, and the fixed clamping seat and the movable clamping seat cooperate with each other to facilitate the loading and unloading of the EGR cooler. The EGR cooler installed on the base is fixed by setting a clamping table, which provides convenience for the processing of the EGR cooler. In order to avoid the displacement deviation of the EGR cooler due to the processing force during the processing, two groups of limit rods are respectively hinged on the movable clamping seat and the clamping table, and the movable end of the clamping drive is connected to the hinge point between the two groups of limit rods. The clamping drive is used to drive the movable clamping seat to clamp or release the EGR cooler, so that different models of EGR coolers can be clamped, and in the process of processing the EGR cooler, the two groups of limit rods hinged head to tail form a self-locking structure, thereby ensuring the stability of the EGR cooler during processing.

[0010] In one embodiment of the utility model, a connecting rod is disposed in the movable clamping seat, the connecting rod is rotatably connected in the movable clamping seat, and one end of the limiting rod is rotatably connected to the connecting rod.

[0011] To implement the above technical solution, the setting of the connecting rod can facilitate the connection stability and convenience between the limit rod and the movable clamping seat.

[0012] In one embodiment of the present invention, the connecting rod passes through the limiting rod, and a limiting ring is provided on the connecting rod to limit the axial displacement of the limiting rod on the connecting rod.

[0013] To implement the above technical solution, the connecting rod is passed through the limit rod, which can facilitate the connection between the connecting rod and the limit rod, and the setting of the limit ring can limit the axial displacement of the limit rod on the connecting rod, thereby ensuring the stability of the limit rod.

[0014] In one embodiment of the present invention, a clamping rod is provided between the clamping platform and the limiting rod. The clamping rod penetrates the limiting rod and is rotatably connected to the limiting rod.

[0015] To implement the above technical solution, the arrangement of the clamping rod can provide convenience for the connection between the limit rod and the clamping platform.

[0016] In one embodiment of the present invention, the fixed end of the clamping drive member is rotatably connected to the clamping platform.

[0017] The implementation of the above technical solution can facilitate the movement of the hinge point of the limit rod by the movable end of the clamping drive member.

[0018] In one embodiment of the utility model, the adjacent surfaces of the two groups of card seats are provided with card slots, one side of the card slot is provided with a locking nut that passes through one side of the card slot, and the locking nut is threadedly connected to the card slot.

[0019] To implement the above technical solution, the setting of the locking nut can facilitate the locking of the EGR cooler clamped between the two sets of clamping seats, thereby further ensuring the clamping stability of the EGR cooler during the processing.

[0020] In one embodiment of the present invention, the slot is two sets of L-shaped slots arranged opposite to each other, a hollow convex slot is formed between the two sets of L-shaped slots, and the locking nut passes through one set of the L-shaped slots.

[0021] To implement the above technical solution, the arrangement of the two groups of L-shaped holders can facilitate the clamping of the EGR cooler, and a hollow convex groove is formed between the two groups of L-shaped holders, which can provide a limiting space for the EGR cooler and further ensure the stability of the EGR cooler during processing.

[0022] In one embodiment of the utility model, a card seat limiting block is provided on the base and on a side of the fixed card seat close to the movable card seat, and the card seat limiting block limits the displacement of the fixed card seat toward the movable card seat.

[0023] By implementing the above technical solution, the setting of the holder limit block can improve the use stability of the fixed holder and avoid displacement deviation of the fixed holder to affect the processing accuracy.

[0024] In one embodiment of the present invention, a drag chain is provided on one side of the base to connect the electric control terminal.

[0025] Implementing the above technical solution facilitates the connection between the base station and the electronic control terminal.

[0026] In an embodiment of the present invention, a guide rail is disposed on the base, and the holder is slidably connected to the guide rail.

[0027] By implementing the above technical solution, the setting of the guide rail can provide a limiting effect for the sliding of the card holder, thereby ensuring its stability in use.

[0028] As described above, a self-locking clamping mechanism of the utility model has the following beneficial effects: the base and the clamping seat cooperate with each other to provide a processing space for the EGR cooler, and the fixed clamping seat and the movable clamping seat cooperate with each other, which can facilitate the loading and unloading of the EGR cooler. The EGR cooler installed on the base is fixed by setting a clamping table, which provides convenience for the processing of the EGR cooler. In order to avoid the displacement deviation of the EGR cooler due to the processing force during the processing, two groups of limit rods are respectively hinged on the movable clamping seat and the clamping table, and the movable end of the clamping drive is connected to the hinge point between the two groups of limit rods. The clamping drive is used to drive the movable clamping seat to clamp or release the EGR cooler, so that EGR coolers of different models can be clamped. In the process of processing the EGR cooler, the two groups of limit rods hinged head to tail form a self-locking structure, thereby ensuring the stability of the EGR cooler during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shown is a structural schematic diagram of the self-locking clamping mechanism disclosed in an embodiment of the utility model.

[0030] Figure 2 Shown is a schematic diagram of the slot structure of the self-locking clamping mechanism disclosed in the embodiment of the utility model.

[0031] Figure 3 Shown is a schematic diagram of the limiting ring structure of the self-locking clamping mechanism disclosed in the embodiment of the utility model.

[0032] Figure 4 Shown is a schematic diagram of the guide rail structure of the self-locking clamping mechanism disclosed in an embodiment of the utility model.

[0033] Component number description

[0034] 1. Base; 2. Fixed holder; 3. Movable holder; 4. Clamping platform; 5. Limit rod; 6. Clamping drive; 7. Connecting rod; 8. Limit ring; 9. Clamping rod; 10. Slot; 11. Locking nut; 12. Holder limit block; 13. Drag chain; 14. Guide rail. DETAILED DESCRIPTION

[0035] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0036] See also Figures 1 to 4The utility model provides a self-locking clamping mechanism, including: a base 1 holder is provided on the rear side of a base 1, the holder is provided on the front side of the base 1, and the holder is symmetrically provided with two groups, including a fixed holder 2 and a movable holder 3 slidably connected to the base 1 along the length direction of the base 1, the clamping assembly includes a clamping platform 4 provided at one end of the base 1, two groups of limit rods 5 hinged end to end are provided between the clamping platform 4 and the movable holder 3, the two ends of the two groups of limit rods 5 are respectively hinged to the movable holder 3 and the clamping platform 4, a clamping driving member 6 is provided on the clamping platform 4, and the movable end of the clamping driving member 6 is connected to the hinge point between the two groups of limit rods 5.

[0037] To implement the above technical solution, the base 1 and the clamping seat cooperate with each other to provide a processing space for the EGR cooler. The fixed clamping seat 2 and the movable clamping seat 3 cooperate with each other, so that the loading and unloading of the EGR cooler can be facilitated. The EGR cooler installed on the base 1 is fixed by setting a clamping table 4, which provides convenience for the processing of the EGR cooler. In order to avoid the displacement deviation of the EGR cooler due to the processing force during the processing, two groups of limit rods 5 are set, and the two ends are respectively hinged on the movable clamping seat 3 and the clamping table 4, and the movable end of the clamping drive 6 is connected to the hinge point between the two groups of limit rods 5. The clamping drive 6 is used to drive the movable clamping seat 3 to clamp or release the EGR cooler, so that different types of EGR coolers can be clamped. In the process of processing the EGR cooler, the two groups of limit rods 5 hinged head to tail form a self-locking structure, thereby ensuring the stability of the EGR cooler during the processing.

[0038] A connecting rod 7 is arranged in the movable holder 3, and the connecting rod 7 is rotatably connected in the movable holder 3, and one end of the limiting rod 5 is rotatably connected to the connecting rod 7. The arrangement of the connecting rod 7 can facilitate the connection stability and convenience between the limiting rod 5 and the movable holder 3.

[0039] The connecting rod 7 passes through the limit rod 5, and a limit ring 8 is provided on the connecting rod 7 to limit the axial displacement of the limit rod 5 on the connecting rod 7. The connecting rod 7 passes through the limit rod 5, which can facilitate the connection between the connecting rod 7 and the limit rod 5, and the setting of the limit ring 8 can limit the axial displacement of the limit rod 5 on the connecting rod 7, thereby ensuring the stability of the limit rod 5 in use.

[0040] A clamping rod 9 is provided between the clamping platform 4 and the limiting rod 5 . The clamping rod 9 passes through the limiting rod 5 and is rotatably connected to the limiting rod 5 . The provision of the clamping rod 9 can provide convenience for the connection between the limiting rod 5 and the clamping platform 4 .

[0041] The fixed end of the clamping drive member 6 is rotatably connected to the clamping platform 4, so that the movable end of the clamping drive member 6 can drive the movement of the hinge point of the limit rod 5.

[0042] A slot 10 is provided on the adjacent surfaces of the two groups of sockets, and a locking nut 11 is provided on one side of the slot 10 and passes through the slot 10. The locking nut 11 is threadedly connected to the slot 10. The setting of the locking nut 11 can facilitate locking the EGR cooler inserted between the two groups of sockets, thereby further ensuring the clamping stability of the EGR cooler during the processing.

[0043] The slot 10 is two groups of L-shaped sockets arranged opposite to each other, and a hollow convex slot 10 is formed between the two groups of L-shaped sockets, and the locking nut 11 passes through one of the groups of L-shaped sockets. The arrangement of the two groups of L-shaped sockets can facilitate the clamping of the EGR cooler, and the hollow convex slot 10 is formed between the two groups of L-shaped sockets, which can provide a limiting space for the EGR cooler, further ensuring the stability of the EGR cooler during processing.

[0044] A card seat limit block 12 is provided on the base 1 and on the side of the fixed card seat 2 close to the movable card seat 3. The card seat limit block 12 limits the displacement of the fixed card seat 2 toward the movable card seat 3. The setting of the card seat limit block 12 can improve the use stability of the fixed card seat 2 and avoid displacement deviation of the fixed card seat 2 to affect the processing accuracy.

[0045] A drag chain 13 is provided on one side of the base 1 to connect the electric control end, so as to facilitate the connection between the base 1 and the electric control end.

[0046] A guide rail 14 is provided on the base 1, and the card holder is slidably connected to the guide rail 14. The setting of the guide rail 14 can provide a limiting effect for the sliding of the card holder, thereby ensuring its stability in use.

[0047] The utility model utilizes the base and the clamping seat to cooperate with each other to provide a processing space for the EGR cooler, and the fixed clamping seat and the movable clamping seat cooperate with each other, which can facilitate the loading and unloading of the EGR cooler, and the EGR cooler installed on the base is fixed by arranging a clamping table, thereby providing convenience for the processing of the EGR cooler, and in order to avoid the displacement deviation of the EGR cooler due to the processing force after the processing during the processing, two groups of limit rods are arranged, and the two ends of the limit rods are respectively hinged on the movable clamping seat and the clamping table, and the movable end of the clamping drive is connected to the hinge point between the two groups of limit rods. The clamping drive is used to drive the movable clamping seat to clamp or release the EGR cooler, so that EGR coolers of different models can be clamped, and in the process of processing the EGR cooler, the two groups of limit rods hinged head to tail form a self-locking structure, thereby ensuring the stability of the EGR cooler during the processing.

[0048] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A self-locking clamping mechanism, characterized in that: include: A base, wherein a base holder is provided at the rear side of the base; The card seat is arranged at the front side of the base, and the card seat is symmetrically provided with two groups, including a group of fixed card seats and a group of movable card seats slidably connected to the base along the length direction of the base; The clamping assembly includes a clamping platform arranged at one end of the base, two groups of limit rods hinged end to end are arranged between the clamping platform and the movable clamping seat, the two ends of the two groups of limit rods are respectively hinged to the movable clamping seat and the clamping platform, and a clamping drive member is provided on the clamping platform, and the movable end of the clamping drive member is connected to the hinge point between the two groups of limit rods.

2. The self-locking clamping mechanism according to claim 1, characterized in that: A connecting rod is arranged in the movable clamping seat, and the connecting rod is rotatably connected in the movable clamping seat, and one end of the limiting rod is rotatably connected to the connecting rod.

3. The self-locking clamping mechanism according to claim 2, characterized in that: The connecting rod passes through the limiting rod, and a limiting ring is arranged on the connecting rod to limit the axial displacement of the limiting rod on the connecting rod.

4. The self-locking clamping mechanism according to claim 1, characterized in that: A clamping rod is arranged between the clamping platform and the limiting rod. The clamping rod penetrates the limiting rod and is rotatably connected to the limiting rod.

5. The self-locking clamping mechanism according to claim 1, characterized in that: The fixed end of the clamping driving member is rotatably connected to the clamping platform.

6. The self-locking clamping mechanism according to claim 1, characterized in that: A clamping groove is arranged on the adjacent surfaces of the two groups of clamping seats, and a locking nut is arranged on one side of the clamping groove and penetrates through one side of the clamping groove, and the locking nut is threadedly connected with the clamping groove.

7. The self-locking clamping mechanism according to claim 6, characterized in that: The card slot is two groups of L-shaped card seats arranged opposite to each other, a hollow convex-shaped card slot is formed between the two groups of L-shaped card seats, and the locking nut passes through one group of L-shaped card seats.

8. The self-locking clamping mechanism according to claim 1, characterized in that: A card seat limiting block is provided on the base and on a side of the fixed card seat close to the movable card seat, and the card seat limiting block limits the displacement of the fixed card seat toward the movable card seat.

9. The self-locking clamping mechanism according to claim 1, characterized in that: A drag chain is arranged on one side of the base to connect the electric control end.

10. The self-locking clamping mechanism according to claim 1, characterized in that: The base is provided with a guide rail, and the clamping seat is slidably connected to the guide rail.