Automobile radiator core clamp applied to brazing

Abstract

According to the automobile radiator core clamp applied to brazing, an empty groove is formed in a fixing base, a gear is rotationally arranged in the middle of the empty groove, two first supporting rods are symmetrically arranged at the two ends of the empty groove, toothed plates located on the two sides of the gear are arranged at the rear ends of the first supporting rods, and the toothed plates are meshed with the gear; a positioning seat is arranged at the outer end of the first supporting rod, a first positioning frame is arranged at the outer end of the positioning seat, a first screw rod is arranged on the first positioning frame, and the first screw rod is in threaded connection with the first positioning frame. The clamp can adapt to automobile radiator core bodies of different sizes, the universality and practicability of the clamp are improved, and the brazing fixing requirements of the core bodies of various models can be met.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive radiator processing equipment, specifically to an automotive radiator core clamping fixture used for brazing. Background Technology

[0002] Brazing is a metal joining process that uses a filler metal (brazing filler metal) with a melting point lower than that of the base metal (the metal materials to be joined). At a temperature lower than the melting point of the base metal but higher than the melting point of the brazing filler metal, the brazing filler metal melts and wets the surface of the base metal. Through capillary action, it fills the gap between the joints and diffuses with the base metal to form a metallurgical bond, thereby achieving the connection of metal parts. Existing cores are classified into expansion tube type and brazing type according to the assembly method. The brazing type core is assembled by spraying flux onto the core and then entering the brazing furnace for brazing. Before entering the brazing furnace, the assembled core needs to be clamped and fixed to prevent the core from falling apart due to thermal expansion in the brazing furnace.

[0003] Existing clamps are mostly of fixed size, making them inconvenient to use with heat sink cores of different sizes, resulting in low applicability. Furthermore, they are not easy to store after use. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a clamp for automotive radiator cores used in brazing.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a clamp for automotive radiator cores used in brazing, comprising a fixed base, the fixed base having an internal slot, a gear rotatably mounted in the middle of the slot, two first support rods symmetrically mounted at both ends of the slot, toothed plates located on both sides of the gear at the rear end of the first support rods, the toothed plates meshing with the gear, a positioning seat at the outer end of the first support rods, a first positioning frame at the outer end of the positioning seat, a first screw mounted on the first positioning frame, the first screw threadedly connected to the first positioning frame, and a first clamping plate for clamping the core at one end of the first screw, a crossbar and a third screw on one side of the fixed base, one end of the third screw rotatably connected to the fixed base, the third screw penetrating the crossbar, the third screw threadedly connected to the crossbar, and fixing rods penetrating the fixed base at both ends of the crossbar for limiting the first support rods;

[0008] Two second support rods are symmetrically arranged on both sides of the positioning seat. A third support rod is pulled out from the second support rod, and the third support rod is provided with multiple through holes. The outer end of the second support rod is provided with a locking rod that passes through the through holes. The outer end of the third support rod is provided with a second positioning frame. The second positioning frame is provided with a second screw. The second screw is threadedly connected to the second positioning frame, and one end of the second screw is provided with a second clamping plate for clamping the core.

[0009] To make the locking rod more securely installed, the improvement of this utility model is that the locking rod is threadedly connected to the second support rod.

[0010] To facilitate the storage of the second support rod, the present invention is improved by symmetrically arranging two fixing frames on both sides of the positioning seat, and providing a positioning shaft and a limiting hole at the end of the second support rod away from the second positioning frame. The positioning shaft is rotatably connected to the fixing frame, and the fixing frame is provided with a limiting rod that passes through the limiting hole.

[0011] Furthermore, an improvement of this utility model is that the limiting rod is threadedly connected to the fixing frame.

[0012] Furthermore, an improvement of this utility model is that the fixing frame is provided with a groove, and the top end of the limiting rod is located inside the groove.

[0013] Furthermore, an improvement of this utility model is that the bottom ends of the fixed base, the positioning base, and the second positioning frame are on the same horizontal plane.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a clamp for automotive radiator cores used in brazing, which has the following advantages:

[0016] By adjusting the position of the first support rod and the extension length of the second and third support rods, it can accommodate different sizes of automotive radiator cores, improving the versatility and practicality of the fixture and meeting the brazing and fixing requirements of various core models.

[0017] The first and second clamping plates clamp the core from different directions, which ensures that the clamping force is evenly distributed, keeps the core stable during brazing, prevents the brazing quality from being affected by shaking or displacement, and ensures the accuracy and reliability of the welded joint. Attached Figure Description

[0018] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a second-view three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the mating structure between the toothed plate and the gear in this utility model;

[0021] Figure 4 This is a schematic diagram of the limiting hole in this utility model;

[0022] In the diagram: 1. Fixed base; 2. First support rod; 3. Toothed plate; 4. Gear; 5. Crossbar; 6. Fixed rod; 7. Third screw; 8. Hollow slot; 9. Positioning base; 10. First positioning frame; 11. First screw; 12. First clamping plate; 13. Fixed frame; 14. Second support rod; 15. Limiting rod; 16. Limiting hole; 17. Positioning shaft; 18. Third support rod; 19. Through hole; 20. Locking rod; 21. Second positioning frame; 22. Second screw; 23. Second clamping plate. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model discloses a clamp for automotive radiator cores used in brazing, comprising a fixed base 1, an internal slot 8, a gear 4 rotatably mounted in the middle of the slot 8, two first support rods 2 symmetrically mounted at both ends of the slot 8, toothed plates 3 located on both sides of the gear 4 at the rear end of the first support rods 2, and the toothed plates 3 meshing with the gear 4, a positioning seat 9 at the outer end of the first support rods 2, a first positioning frame 10 at the outer end of the positioning seat 9, a first screw 11 mounted on the first positioning frame 10, the first screw 11 being threadedly connected to the first positioning frame 10, and a first clamping plate 12 for clamping the core at one end of the first screw 1, a crossbar 5 and a third screw 7 on one side of the fixed base 1, one end of the third screw 7 being rotatably connected to the fixed base 1, and the third screw 7 penetrating the crossbar 5, the third screw 7 being threadedly connected to the crossbar 5, and fixing rods 6 penetrating the fixed base 1 at both ends of the crossbar 5 for limiting the first support rods 2;

[0025] Two second support rods 14 are symmetrically arranged on both sides of the positioning seat 9. A third support rod 18 is pulled out on the second support rod 14, and the third support rod 18 is provided with multiple through holes 19. The outer end of the second support rod 14 is provided with a locking rod 20 that passes through the through holes 19. The outer end of the third support rod 18 is provided with a second positioning frame 21. The second positioning frame 21 is provided with a second screw 22. The second screw 22 is threadedly connected to the second positioning frame 21, and one end of the second screw 22 is provided with a second clamping plate 23 for clamping the core.

[0026] In this embodiment, the locking rod 20 is threadedly connected to the second support rod 14, and the threaded connection makes the locking rod 20 more securely installed.

[0027] In this embodiment, the fixing frame 13 is provided with a groove, the top end of the limiting rod 15 is inside the groove, and the bottom ends of the fixing seat 1, the positioning seat 9 and the second positioning frame 21 are on the same horizontal plane, which makes the structure more stable when placed.

[0028] Install the fixing seat 1 in a suitable position on the brazing equipment, ensuring that the fixing seat 1 is installed firmly. Check whether the gear 4 in the internal slot 8 of the fixing seat 1 can rotate flexibly, and whether each component is complete and undamaged, such as whether the connection of the first support rod 2, tooth plate 3, positioning seat 9, first positioning frame 10, cross bar 5, third screw 7 and other components is normal.

[0029] Based on the dimensions of the car radiator core, one of the first support rods 2 is pulled first. Through the meshing of the toothed plate 3 and the gear 4, both first support rods 2 can be pulled out synchronously at both ends of the slot 8. When the first positioning frame 10 reaches the designated position, the third screw 7 is rotated. When the third screw 7 rotates, the crossbar 5 will move along the third screw 7, thereby driving the fixed rod 6 to move, so that the fixed rod 6 can contact the first support rod 2, thereby limiting the first support rod 2.

[0030] Then, according to the width of the core, the third support rod 18 on the second support rod 14 is pulled out to a suitable length so that the second positioning bracket 21 at the outer end of the third support rod 18 can be located at a suitable position on the side of the core. Then, the locking rod 20 at the outer end of the second support rod 14 is passed through the corresponding through hole 19 on the third support rod 18 and the locking rod 20 is tightened to fix the third support rod 18 on the second support rod 14 to ensure that its position is stable.

[0031] Place the car radiator core on the fixed base 1, and then rotate the first screw 11 on the first positioning frame 10. Since the first screw 11 is threadedly connected to the first positioning frame 10, the first screw 11 will move along the thread direction, driving the first clamping plate 12 at one end to approach the core until the first clamping plate 12 gently contacts the core, thus initially clamping and fixing the core.

[0032] Then rotate the second screw 22 on the second positioning frame 21. The second screw 22 drives the second clamping plate 23 at one end to move toward the core until the second clamping plate 23 is in close contact with the surface of the core. Together with the first clamping plate 12, the core is firmly clamped in the fixture. At this time, the installation and fixation of the core in the fixture is completed.

[0033] Two fixing frames 13 are symmetrically arranged on both sides of the positioning base 9. The second support rod 14 is provided with a positioning shaft 17 and a limiting hole 16 at the end away from the second positioning frame 21. The positioning shaft 17 is rotatably connected to the fixing frame 13. The fixing frame 13 is provided with a limiting rod 15 that passes through the limiting hole 16. The limiting rod 15 is threadedly connected to the fixing frame 13, which makes it easy to store the second support rod 14.

[0034] When the structure needs to be stored, first remove the limiting rod 15 from the fixing frame 13, then retract the third support rod 18 into the second support rod 14, and rotate the second support rod 14 around the positioning shaft 17 so that the two second support rods 14 are parallel to the first support rod 2. After use, it is convenient to store the structure.

[0035] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A fixture for brazing an automobile radiator core, comprising a fixed base (1), characterized in that: The interior of the fixing base (1) is provided with an empty slot (8), the middle part of the empty slot (8) is rotationally provided with a gear (4), two first supporting rods (2) are symmetrically arranged at the two ends of the empty slot (8), the rear end of the first supporting rod (2) is provided with a toothed plate (3) located at the two sides of the gear (4), the toothed plate (3) is engaged with the gear (4), the outer end of the first supporting rod (2) is provided with a positioning seat (9), the outer end of the positioning seat (9) is provided with a first positioning frame (10), the first positioning frame (10) is provided with a first screw rod (11), the first screw rod (11) is threadedly connected with the first positioning frame (10), one end of the first screw rod (11) is provided with a first clamping plate (12) for clamping the core, one side of the fixing base (1) is provided with a cross rod (5) and a third screw rod (7), one end of the third screw rod (7) is rotationally connected with the fixing base (1), the third screw rod (7) penetrates through the cross rod (5), the third screw rod (7) is threadedly connected with the cross rod (5), and the two ends of the cross rod (5) are provided with fixed rods (6) penetrating through the fixing base (1) for limiting the first supporting rod (2); The two sides of the positioning seat (9) are symmetrically provided with two second supporting rods (14), a third supporting rod (18) is pullably arranged on the second supporting rod (14), a plurality of through holes (19) are arranged on the third supporting rod (18), the outer end of the second supporting rod (14) is provided with a locking rod (20) penetrating through the through hole (19), the outer end of the third supporting rod (18) is provided with a second positioning frame (21), the second positioning frame (21) is provided with a second screw rod (22), the second screw rod (22) is threadedly connected with the second positioning frame (21), and one end of the second screw rod (22) is provided with a second clamping plate (23) for clamping the core.

2. The brazed automotive radiator core jig of claim 1, wherein: The locking rod (20) is threadedly connected with the second supporting rod (14).

3. A fixture for brazing an automotive radiator core according to claim 2, wherein: The two sides of the positioning seat (9) are symmetrically provided with two fixed frames (13), one end of the second supporting rod (14) away from the second positioning frame (21) is provided with a positioning shaft (17) and a limiting hole (16), the positioning shaft (17) is rotationally connected with the fixed frame (13), and the fixed frame (13) is provided with a limiting rod (15) penetrating through the limiting hole (16).

4. A brazed automotive radiator core jig according to claim 3, wherein: The limiting rod (15) is threadedly connected with the fixed frame (13).

5. A brazed automotive radiator core jig according to claim 4, wherein: The fixed frame (13) is provided with a groove, and the top end of the limiting rod (15) is located in the interior of the groove.

6. A brazed automotive radiator core jig according to claim 5, wherein: The bottom ends of the fixing base (1), the positioning seat (9) and the second positioning frame (21) are located in the same horizontal plane.

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