Heater cover plate flanging fixing tool

Abstract

The utility model discloses a heater cover plate flanging fixing tool which comprises a working table, and a front end limiting seat, a rear end limiting seat and a flanging mechanism are arranged on the working table. And a limiting clamp is mounted on the rear-end limiting seat. The flanging mechanism comprises a fixing seat, a mounting groove is formed in the fixing seat, and a pressing block rotating around a pin shaft is mounted in the mounting groove through the pin shaft; the lower end of the pressing block is cylindrical and embedded into the mounting groove, the middle end of the pressing block is a pressing nozzle facing the workbench, and the upper end of the pressing block is a handle. According to the fixing tool, the heater and other products can be machined in a gluing and flanging fixing mode, compared with a screw fixing mode, the technological process is simplified, and the production efficiency is higher; and secondly, the pressing head is used for bending and flanging the clamping plate in the rotating movement process, so that the problems that the bending angle is too large, the stress at the bending part is increased and the like due to bending of a straight pushing air cylinder are solved, and the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of heater processing auxiliary devices, specifically to a heater cover plate flange fixing fixture. Background Technology

[0002] Traditional gasoline-powered vehicles heat the interior by exchanging heat generated by the engine with heat from the engine. New energy vehicles, however, lack an engine and its associated structures, so their interior heating methods differ from those of gasoline-powered vehicles. Since the optimal operating temperature for the battery pack is 20℃~35℃, the heating management system of new energy vehicles needs to provide heat not only to the passenger compartment but also to the battery pack in cold conditions.

[0003] The heating management system of new energy vehicles generally heats the coolant and circulates the heated coolant through circulation pipes to the corresponding locations to complete the heating process. During the circulation process, a heater is required to heat the coolant. The heater in the prior art includes a housing, and a heating device is installed inside the housing to heat the coolant sealed inside the heater.

[0004] A heater typically consists of a housing and a cover plate, with the housing sealed at both ends by the cover plate. In existing technologies, the cover plate is usually sealed first with glue or a sealing ring, and then fixed with screws. This method requires steps such as setting screw holes, resulting in numerous processing steps and low production efficiency.

[0005] To improve production efficiency, the screw fixing method can be replaced with a clamping method using a flanged plate. This involves setting a vertical clamping plate on the cover plate, and using a flanged tool to bend the plate inwards to create a locking effect. Current technology typically uses a cylinder to push the clamping plate from the outside inwards to bend it; however, because the clamping plate itself is small and the cylinder needs to enter from the side, this requires higher operational precision. Utility Model Content

[0006] The purpose of this utility model is to provide a fixture for fixing the flange of a heater cover plate, which can quickly bend and flange the clamping plate on the heater cover plate.

[0007] To achieve the above objectives, one embodiment of this utility model provides a heater cover plate flange fixing fixture, including a worktable, a front limiting seat, a rear limiting seat, and a flange mechanism on the worktable; the inner walls of the front limiting seat and the rear limiting seat form a fixing surface for fixing the heater, and a limiting clamp is installed on the rear limiting seat;

[0008] The flanging mechanism includes a fixed base with a mounting groove. A pressure block that rotates around the pin is mounted in the mounting groove via a pin. The lower end of the pressure block is cylindrical and is embedded in the mounting groove. The middle end of the pressure block is a pressure nozzle facing the worktable, and the upper end of the pressure block is a handle.

[0009] The limiting clamp includes a connecting block, a front pressing member, a pressing head, a rear pressing member, and a movable connecting member. The upper end of the connecting block has an arc-shaped connecting groove. The lower front end of the front pressing member is movably connected to the front end of the connecting block, and the lower rear end of the front pressing member is movably connected to the lower end of the rear pressing member. The pressing head is installed on the upper part of the front pressing member. The middle part of the rear pressing member is movably connected to the upper end of the movable connecting member, and the lower end of the movable connecting member is movably connected to the rear end of the connecting groove of the connecting block.

[0010] In a preferred embodiment of this invention, the front limiting seat and the rear limiting seat are fixed to the worktable by welding or bolts.

[0011] In a preferred embodiment of this invention, four flanging mechanisms are provided on the workbench, and a processing step is provided on the fixed seat of the flanging mechanism, with the processing step facing inward.

[0012] In a preferred embodiment of this invention, the connecting block of the limiting clamp has an inverted T-shaped structure, and the lower end of the connecting block is provided with several screw holes, which are fixed to the rear limiting seat by bolts.

[0013] In a preferred embodiment of this invention, the upper end of the front pressing member has a through groove, and a pressing head is installed in the through groove; the pressing head is connected to a screw rod, and two nuts and two clamping plates are provided on the screw rod, the clamping plates are clamped on the outer wall of the through groove, and the nuts are located on the outside of the clamping plates.

[0014] In this invention, the movable connection on the limiting clamp is preferably a pin-type movable connection.

[0015] In summary, this utility model has the following advantages:

[0016] The fixing fixture of this utility model can process heaters by applying glue and flanging, which simplifies the process and increases production efficiency compared to screw fixing. Secondly, the pressure head bends and flangs the plate during the rotation process, avoiding problems such as excessive bending angle and increased stress at the bending point caused by direct-push cylinder bending, thus ensuring product quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the machining process of the heater cover plate flange fixing fixture in one embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of a heater cover plate flange fixing fixture in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the heater in one embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of a limiting clamp in one embodiment of the present invention;

[0021] Figure 5 This is an exploded view of the limiting clamp in one embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the flange mechanism in one embodiment of the present invention, wherein the length of the handle is omitted.

[0023] The components include: 1. Workbench; 2. Front limit seat; 3. Rear limit seat; 4. Flanging mechanism; 5. Limiting fixture; 41. Fixed seat; 42. Mounting groove; 43. Pressing block; 44. Pressing nozzle; 45. Handle; 51. Connecting block; 52. Front pressing component; 53. Pressing head; 54. Rear pressing component; 55. Movable connecting component; 411. Machining step; 521. Through groove; 522. Screw; 523. Nut; 524. Clamping plate; 6. Heater. Detailed Implementation

[0024] This utility model provides a fixture for fixing a heater cover plate by flanging, including a worktable 1. The worktable 1 has a front limiting seat 2, a rear limiting seat 3, and a flanging mechanism 4. The inner walls of the front limiting seat 2 and the rear limiting seat 3 form a fixing surface for fixing the heater 6. A limiting clamp 5 is installed on the rear limiting seat 3. The installation area formed by the front limiting seat 2 and the rear limiting seat 3 is exactly the same size as the heater, allowing the heater to be directly placed inside for shape fixing. When the heater is placed in the installation area, the gap between it and the limiting seat is small, facilitating easy removal. The front limiting seat 2 and the rear limiting seat 3 can be fixed to the worktable 1 by welding or bolts.

[0025] The flanging mechanism 4 is a mechanism that can bend the pallet inward by 90 degrees. The flanging mechanism 4 includes a fixed base 41, which can provide a certain height. Preferably, four flanging mechanisms 4 are provided on the worktable 1. The fixed base 41 of the flanging mechanism 4 is provided with a processing step 411, which faces inward. The fixed base 41 has a mounting groove 42, in which a pressure block 43 that can rotate around the pin is installed by a pin. The lower end of the pressure block 43 is cylindrical and is embedded in the mounting groove 42. The middle end of the pressure block 43 is a pressure nozzle 44 facing the worktable 1, and the upper end of the pressure block 43 is a handle 45. In the initial state, handle 45 faces outward, and then the heater is placed inside. After the heater is placed, the area below the clamping plate at the edge of the heater is placed on the machining step 411. This allows the machining step 411 to provide some support and limit the movement in the XY direction. At the same time, the limit of the heater in the Z-axis direction is achieved by pressing down the limit fixture 5. Both the upper and lower cover plates of the heater can be adapted to the same step surface, reducing the time for changing fixtures.

[0026] The limiting clamp 5 includes a connecting block 51, a front pressing member 52, a pressing head 53, a rear pressing member 54, and a movable connecting member 55. The upper end of the connecting block 51 has an arc-shaped connecting groove. The lower front end of the front pressing member 52 is movably connected to the front end of the connecting block 51, and the lower rear end of the front pressing member 52 is movably connected to the lower end of the rear pressing member 54. The pressing head 53 is installed on the upper part of the front pressing member 52. The middle part of the rear pressing member 54 is movably connected to the upper end of the movable connecting member 55, and the lower end of the movable connecting member 55 is movably connected to the rear end of the connecting groove of the connecting block 51.

[0027] After the heater is placed in, the rear pressing member 54 is moved inward, which causes the pressing head 53 to move downward, thus contacting the upper surface of the heater cover and pressing it to fix the heater, facilitating subsequent flanging operations. After the flanging process is completed, pulling the rear pressing member 54 outward unlocks it. After fixing with the limiting clamp 5, pulling the handle 45 of the flanging mechanism 4 inward causes the pressing nozzle 44 of the flanging mechanism 4 to contact the upper part of the clamping plate, and continuously presses inward and downward during the rotation, ultimately bending the clamping plate inward. Since the clamping plate and the cover plate are connected as one piece, the lower surface of the clamping plate is attached to the upper surface of the heater housing, thus achieving a fixed connection between the cover plate and the heater.

[0028] In a preferred embodiment of this utility model, the connecting block 51 of the limiting clamp 5 has an inverted T-shaped structure, and the lower end of the connecting block 51 is provided with several screw holes, which are fixed to the rear limiting seat 3 by bolts.

[0029] In a preferred embodiment of this invention, the upper end of the front pressure member 52 has a through groove 521, in which a pressure head 53 is installed. The pressure head 53 is connected to a screw 522, on which two nuts 523 and two clamping plates 524 are provided. The clamping plates are clamped against the outer wall of the through groove, and the nuts are located on the outside of the clamping plates. The limiting clamp 5 can be unlocked and locked by adjusting the tightness of the two nuts, which is beneficial for adjusting the installation position of the pressure head 53.

[0030] In this invention, the movable connection on the limiting clamp 5 is preferably a pin-shaft movable connection.

[0031] Although specific embodiments of this utility model have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A heater cover plate flange fixing tool, characterized in that: The workbench is provided with a front end limiting seat, a rear end limiting seat and a flanging mechanism; the inner walls of the front end limiting seat and the rear end limiting seat form a fixing surface for fixing a heater; a limiting clamp is mounted on the rear end limiting seat; The flanging mechanism comprises a fixing seat provided with a mounting groove, and a pressing block rotatably mounted in the mounting groove through a pin shaft; the lower end of the pressing block is in a cylindrical shape and is embedded in the mounting groove; the middle end of the pressing block is a pressing nozzle facing the workbench; and the upper end of the pressing block is a handle. The limiting clamp comprises a connecting block, a front pressing piece, a pressing head, a rear pressing piece and a movable connecting piece; the upper end of the connecting block is provided with an arc-shaped connecting groove; the lower front end of the front pressing piece is movably connected with the front end of the connecting block; the lower rear end of the front pressing piece is movably connected with the lower end of the rear pressing piece; the upper part of the front pressing piece is provided with the pressing head; the middle part of the rear pressing piece is movably connected with the upper end of the movable connecting piece; and the lower end of the movable connecting piece is movably connected with the rear end of the connecting groove of the connecting block.

2. The heater cover plate flanging fixing tool of claim 1, wherein: The front end limiting seat and the rear end limiting seat are fixed on the workbench by welding or bolts.

3. The heater cover plate flanging fixing tool of claim 1, wherein: Four flanging mechanisms are arranged on the workbench, and a machining step is arranged on the fixing seat of each flanging mechanism and faces the inner side.

4. The heater cover plate flanging fixing tool of claim 1, wherein: The connecting block of the limiting clamp is in an inverted T-shaped structure, and a plurality of screw holes are arranged on the lower end of the connecting block and fixed on the rear end limiting seat by bolts.

5. The heater cover plate flanging and fixing tool of claim 1, wherein: The upper end of the front pressing piece is provided with a through groove, and the pressing head is mounted in the through groove; the pressing head is connected with a screw rod, two nuts and two clamping pieces are arranged on the screw rod, the clamping pieces are clamped on the outer wall of the through groove, and the nuts are arranged outside the clamping pieces.

6. The heater cover plate flange fixing tool of claim 1, wherein: The movable connection of the limiting clamp is in a pin shaft movable connection mode.

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