Internal expansion riveting device for vehicle stamping liquid cooling plate tube assembly

Abstract

The utility model discloses an internal expansion riveting device for a vehicle stamping liquid cooling plate tube assembly, relates to the technical field of vehicle stamping liquid cooling plate machining, and aims to solve the problems that in the prior art, a manual mould is slow in riveting rhythm and high in labor intensity, a riveting head of a special riveter is easy to deform, a tube assembly is inclined after a product is discharged from a furnace, a supporting block is arranged above a workbench, and the riveting efficiency is high. The left side of the top of the supporting block is detachably connected with a first positioning block, the right side of the top of the supporting block is detachably connected with a second positioning block, an expansion riveting head is arranged in the supporting block and penetrates through the first positioning block, a core rod is slidably connected in the expansion riveting head, one end of the core rod is provided with an expansion block, and the other end of the core rod is connected with an output shaft of a rivet pulling air cylinder which is fixed to the bottom face of the workbench. According to the internal expansion type riveting device for the stamping liquid cooling plate tube assembly, the problem that the stamping liquid cooling plate tube assembly is poor in riveting is solved through internal expansion of the expansion riveting head and the core rod, rapid disassembly and remodeling can be achieved through the expansion riveting head, and the internal expansion type riveting device is suitable for internal expansion type riveting of various products.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing of stamped liquid cooling plates for vehicles, in particular to an internal expansion riveting device for a stamped liquid cooling plate tube assembly for vehicles. Background Art

[0002] The automotive stamped liquid cooling plate mainly includes an upper plate, a lower plate, a nozzle, a mounting seat, a bracket, a plug cap, a label and other parts, wherein the nozzle and the mounting seat are riveted to form a nozzle assembly.

[0003] The mounting seat has a new structure of a tapered hole. The nozzle is inserted into the mounting seat from the left side for riveting. However, the bottom end face of the tapered hole must not be deformed. The traditional external tension riveting method cannot be used, and the internal expansion riveting method must be used. At present, the nozzle and the mounting seat are mostly riveted by manual jigs and special rivet guns. The disadvantages of manual jig riveting are slow cycle, high labor intensity, low degree of automation, and low pass rate. The disadvantages of special rivet gun riveting are that the rivet head is easy to deform, the riveting state is unstable, and the pipe assembly is skewed after the product is out of the oven, resulting in scrap. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an internal expansion riveting device for a stamped liquid cooling plate tube assembly for a vehicle, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model discloses an internal expansion riveting device for a stamped liquid cooling plate tube assembly for a vehicle, and the technical solution adopted is that it includes a workbench and a bracket, and the bracket is fixedly connected to the bottom of the workbench. A support block is provided above the workbench, and the left side of the top of the support block is detachably connected to a first positioning block, and the right side of the top of the support block is detachably connected to a second positioning block. There is an expansion rivet head inside the support block, and the expansion rivet head passes through the first positioning block. The expansion rivet head is slidably connected to a core rod, and one end of the core rod is provided with an expansion block and the other end is connected to the output shaft of a riveting cylinder. The riveting cylinder is fixed to the bottom surface of the workbench, and there is a support frame on the workbench on the left side of the support block, and there is a fixing mechanism on the support frame.

[0006] As a preferred technical solution of the utility model, the fixing mechanism includes a fixed cylinder, which is fixed on the support frame. A pre-tightening block is detachably connected to the output shaft of the fixed cylinder, and the pre-tightening block is used to press the nozzle tube onto the mounting seat.

[0007] As a preferred technical solution of the utility model, the rivet head includes a fixed end and an inner expanding end, the surface of the fixed end is provided with a thread, a screw hole is provided inside the support block, and the rivet head is threadedly connected to the support block through the thread and the screw hole, which is convenient for replacing different rivet heads and has a wider range of applications. The inner expanding end is composed of inner expanding petals, and the inner expanding petals are multiple and arranged in a ring array on the fixed end. The inner expanding end is wrapped with an elastic ring, and the elastic ring is used to assist the inner expanding petals in resetting.

[0008] As a preferred technical solution of the utility model, a positioning shaft is inserted into the first positioning block, and the rear end of the positioning shaft leaks out to the outside of the first positioning block. The positioning shaft is used to limit the position of the mounting seat so that the mounting seat can be placed in the same position each time the mounting seat is placed.

[0009] As a preferred technical solution of the utility model, the bottom of the bracket is provided with moving wheels to facilitate the movement of the equipment and improve the maneuverability of the equipment.

[0010] As a preferred technical solution of the utility model, storage slots are provided on both sides of the workbench. When riveting in large quantities, the parts before riveting can be placed in the storage slot on one side, and the riveted parts can be placed in the other storage slot.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the utility model solves the problem of poor riveting of stamped liquid cooling plate tube assemblies through the internal expansion of the rivet head and the core rod; the rivet head can be quickly disassembled and changed, and is suitable for internal expansion riveting of various products; compared with manual mold riveting, the labor intensity is reduced; compared with traditional special rivet guns, the riveting efficiency is improved, the riveting firmness is improved, and the product qualification rate is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a partial enlarged view of the structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the core shaft connection of the utility model;

[0015] Figure 4 This is a schematic diagram of the installation of the nozzle pipe mounting seat of the utility model;

[0016] Figure 5 This is a cross-sectional view of the rivet head of the utility model;

[0017] Figure 6 This is a schematic diagram of the structure of the rivet head of the utility model;

[0018] Figure 7This is a schematic diagram of the inner expansion petal structure of the utility model;

[0019] Figure 8 This is a schematic diagram of the structure of the nozzle pipe mounting seat of the utility model;

[0020] Fig. 9 This is a cross-sectional view of the nozzle pipe mounting seat of the utility model.

[0021] In the figure: 1. workbench; 101. bracket; 102. moving wheel; 103. support frame; 104. storage tank; 2. support block; 3. first positioning block; 4. positioning shaft; 5. second positioning block; 6. rivet head; 601. inner expanding end; 602. fixed end; 603. thread; 604. elastic ring; 605. inner expanding petal; 7. core rod; 701. expanding block; 8. fixed cylinder; 9. pre-tightening block; 10. rivet cylinder; 11. nozzle; 12. mounting seat. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0023] like Figures 1 to 9 As shown, the utility model discloses an internal expansion riveting device for a stamped liquid cooling plate tube assembly for a vehicle, and the technical scheme adopted is that it includes a workbench 1, a bracket 101 is provided below the workbench 1, a moving wheel 102 is provided at the bottom of the bracket 101, storage slots 104 are provided on both sides of the workbench 1, a support block 2 is provided on the surface of the workbench 1, the left surface of the support block 2 is detachably connected to a first positioning block 3 by bolts, and the right surface of the support block 2 is detachably connected to a second positioning block 5 by bolts, the first positioning block 3 is provided with a socket, a positioning shaft 4 is inserted in the socket, an expansion rivet head 6 is fixedly connected to the support block 2, and the expansion rivet head 6 includes an inner expansion end 601 and a fixed end 602, and a thread 603 is provided on the fixed end 602 as shown in FIG. Figure 6 and Figure 7As shown, a screw hole is provided in the support block 2, and the rivet head 6 is threadedly connected to the support block 2 through the thread 603 and the screw hole. The inner expansion end 601 includes an inner expansion petal 605, and there are multiple inner expansion petals 605, and they are arranged in a ring array to the fixed end 602. An annular groove is provided on the inner expansion petal 605, and there are four annular grooves. An elastic ring 604 is provided in the annular groove. The core rod 7 is slidably connected to the rivet head 6, and an expansion block 701 is provided at the end of the core rod 7 at the inner expansion end 601. The other end of the core rod 7 is connected to the output shaft of the riveting cylinder 10, and the riveting cylinder 10 is fixed to the bottom of the workbench 1. The workbench 1 on the left side of the support block 2 is fixedly connected to the support frame 103, and the support frame 103 has a fixing mechanism, and the fixing mechanism includes a fixing cylinder 8, and the fixing cylinder 8 is fixedly connected to the support frame 103, and a pre-tightening block 9 is provided on the output shaft of the fixing cylinder 8.

[0024] The working principle of the utility model is as follows: the first positioning block 3 adapted to the mounting seat 12 is fixed to the support block 2 by bolts, the two positioning shafts 4 are inserted into the jack of the first positioning block 3, the mounting seat 12 is placed in the positioning groove of the first positioning block 3, the mounting seat 12 is pressed against the positioning shaft 4 to determine the position of each installation, the mouth of the nozzle tube 11 that needs to be riveted with the mounting seat 12 is inserted into the inside of the mounting seat 12, the pre-tightening block 9 adapted to the nozzle tube 11 is installed on the output shaft of the fixed cylinder 8, the fixed cylinder 8 is started to press the pre-tightening block 9 on the nozzle tube 11, and the nozzle tube 11 and the mounting seat are eliminated. The gap between the two mounting seats 12 is opened, and the riveting cylinder 10 is started. The output shaft of the riveting cylinder 10 pulls the core rod 7 downward, and the expansion block 701 at the end of the core rod 7 expands the inner expansion petal 605 of the expansion rivet head 6, thereby expanding the nozzle tube 11, so that the nozzle tube 11 and the mounting seat 12 are riveted together. At this time, the riveting cylinder 10 resets the inner expansion petal 605 to restore it to the initial state through its own elasticity and the elastic ring 604, and the pre-tightening block 9 is reset, that is, a riveting is completed. When replacing different types of nozzle tubes 11 and mounting seats 12, it is sufficient to replace the adapted pre-tightening block 9, the first positioning block 3, the second positioning block 5 and the expansion rivet head 6.

[0025] The circuits and mechanical connections involved in the present utility model are conventional means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belong to common knowledge.

[0026] Components not described in detail herein are prior art.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An internal expansion riveting device for a stamped liquid cooling plate tube assembly for a vehicle, comprising a workbench (1) and a bracket (101), wherein the bracket (101) is fixedly connected below the workbench (1), and is characterized in that: A support block (2) is provided above the workbench (1), the left side of the top of the support block (2) is detachably connected to a first positioning block (3), and the right side of the top of the support block (2) is detachably connected to a second positioning block (5). A rivet head (6) is provided inside the support block (2), the rivet head (6) passes through the first positioning block (3), and a core rod (7) is slidably connected inside the rivet head (6). One end of the core rod (7) is provided with a rivet block (701) and the other end is connected to the output shaft of a riveting cylinder (10). The riveting cylinder (10) is fixed to the bottom surface of the workbench (1), and a support frame (103) is provided on the workbench (1) on the left side of the support block (2), and a fixing mechanism is provided on the support frame (103).

2. The internal expansion riveting device for a stamped liquid cooling plate tube assembly for a vehicle according to claim 1, characterized in that: The fixing mechanism comprises a fixing cylinder (8), the fixing cylinder (8) being fixed on the support frame (103), and a pre-tightening block (9) being detachably connected to an output shaft of the fixing cylinder (8).

3. The internal expansion riveting device for a stamped liquid cooling plate tube assembly for a vehicle according to claim 1, characterized in that: The expansion rivet head (6) comprises a fixed end (602) and an inner expansion end (601); a thread (603) is provided on the surface of the fixed end (602); a screw hole is provided inside the support block (2); the expansion rivet head (6) is threadedly connected to the support block (2) via the thread (603) and the screw hole; the inner expansion end (601) is composed of inner expansion petals (605); a plurality of inner expansion petals (605) are arranged in an annular array on the fixed end (602); and an elastic ring (604) is wrapped around the inner expansion end (601).

4. The internal expansion riveting device for a stamped liquid cooling plate tube assembly for a vehicle according to claim 1, characterized in that: The first positioning block (3) is plugged with a positioning shaft (4), and the rear end of the positioning shaft (4) leaks out to the outside of the first positioning block (3).

5. The internal expansion riveting device for a stamped liquid cooling plate tube assembly for a vehicle according to claim 1, characterized in that: The bottom of the bracket (101) is provided with moving wheels (102).

6. The internal expansion riveting device for a stamped liquid cooling plate tube assembly for a vehicle according to claim 1, characterized in that: Storage slots (104) are provided on both sides of the workbench (1).

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