Heat exchanger fin trepanning device

Abstract

The utility model relates to the technical field of heat exchanger fin machining, and discloses a heat exchanger fin trepanning device which comprises a working table, two symmetrical vertical plates are fixedly connected to the upper surface of the working table, a connecting plate is fixedly connected to the upper surfaces of the two vertical plates, a shell is fixedly connected to the upper surface of the connecting plate, and the shell is fixedly connected to the lower surface of the working table. A receding groove is formed in one side of the shell, two symmetrical guide rods are fixedly connected between the inner walls of the upper side and the lower side of the receding groove, a sliding frame is slidably connected to the two guide rods, and a driving assembly enabling the sliding frame to move is arranged between the receding groove and the sliding frame. And one end of an output shaft of the motor penetrates through the lower surface of the supporting plate and is provided with a punching assembly. According to the fin punching device, punching operation can be conducted on different positions of a fin, the applicability of the device is improved, the drill bit can be replaced conveniently, and then the requirement for drilling holes of different sizes is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger fin processing technical field more particularly to a heat exchanger fin trepanning device. BACKGROUND

[0002] Fin heat exchanger is the most widely used in gas and liquid heat exchanger one kind of heat exchange equipment, need to carry out hole to fin, can carry out installation and use, need to use a punching device.

[0003] Through the retrieval, the patent for authorization announcement No. CN221109590U discloses a heat dissipation fin punching device, the anti-warping mechanism at the bottom of the movable plate can act on the heat dissipation fin during punching, avoiding the situation that the heat dissipation fin is warped at both ends when punching the heat dissipation fin with large area, however, the device can only punch one part when punching the fin, and the device has poor applicability. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a heat exchanger fin trepanning device to solve the problems in the above background art.

[0005] The utility model provides the following technical scheme: a heat exchanger fin trepanning device, including the workbench, the upper surface fixed connection of workbench has two symmetry vertical boards, the upper surface fixed connection of two vertical boards has the connecting plate, the upper surface fixed connection of connecting plate has the casing, the side of casing is provided with the avoid slot, the inside wall between the upper and lower sides of avoid slot is fixedly connected with two symmetry guide rods, two guide rods are slidably connected with the sliding frame, the avoid slot is equipped with the drive assembly that makes the sliding frame move between the sliding frame, the side fixed connection of sliding frame has the supporting plate, the upper surface fixed connection of supporting plate has the motor, the one end of motor output shaft passes through the lower surface of supporting plate and is equipped with the punching assembly, the upper surface of connecting plate is provided with two symmetry symmetry slide opening, two slide openings are slidably connected with two slide rods, and the top of two slide rods on the same side is fixedly connected with the square frame.

[0006] As a further scheme of the utility model, the drive assembly is an electric push rod, one end of the electric push rod is fixedly connected to the top inner wall of the avoid slot, and the other end of the electric push rod is fixed to the upper surface of the sliding frame.

[0007] Further, the punching assembly is a sleeve, the sleeve is key connected with the motor output shaft passing through the lower surface of the supporting plate, and a drill bit is detachably connected in the sleeve.

[0008] As a further scheme of the utility model, two groups of insertion slots are arranged on the connecting plate, and each group is multiple, one side of the slide rod in the same slide opening is detachably connected with a fixing block through bolts, a circular hole is arranged on the fixing block, an insertion rod is slidably connected in the circular hole, and the bottom ends of the two insertion rods are inserted into corresponding insertion slots.

[0009] Further, an avoiding opening is arranged on the upper surface of the connecting plate, and the avoiding opening is arranged between the two slide openings and directly below the displacement drill bit, and a collecting box is arranged between the workbench and the connecting plate.

[0010] Further, a pull spring is fixedly connected to the circumferential outer wall of the insertion rod, and the other end of the pull spring is fixed to the upper surface of the fixing block, and the insertion rod passes through the pull spring.

[0011] Further, a clamping plate is slidably connected in the square box, a threaded hole is arranged on the upper surface of the square box, a lead screw is threadedly connected in the threaded hole, and the bottom end of the lead screw is rotatably connected with the clamping plate through a bearing.

[0012] As a further scheme of the utility model, a rubber pad is bonded to the lower surface of the clamping plate.

[0013] The technical effects and advantages of the utility model are as follows:

[0014] 1. The utility model discloses a slide rod and a slide opening, which can be freely slid after the fin is placed between the two square boxes, realize punching operation at different positions of the fin, increase the applicability of the device, and are simple in structure and convenient to operate.

[0015] 2. The utility model discloses a driving assembly, which can make the slide frame move up and down at a constant speed along the guide rod, thereby making the punched hole more regular, and saving manpower without the need for the staff to operate the slide frame.

[0016] 3. The utility model discloses a punching assembly, which can disassemble the drill bit, replace the drill bit when different diameter holes need to be punched on the heat exchanger fin, thereby meeting the requirement of drilling different size holes. DRAWINGS

[0017] Figure 1 It is a schematic view of the three-dimensional structure of the utility model.

[0018] Figure 2 It is a schematic view of the enlarged structure of the shell of the utility model.

[0019] Figure 3 It is a schematic view of the enlarged structure of the utility model.

[0020] Figure 4 It is a schematic view of the enlarged structure of the utility model.

[0021] Figure 5 The A part of the utility model is enlarged structure schematic view.

[0022] The figure mark is: 1, workstation;2, vertical board;3, connecting plate;5, shell;6, avoid slot;7, guide rod;8, sliding frame;9, electric push rod;10, support plate;11, motor;12, drill bit;13, sliding port;14, sliding rod;15, square frame;16, collection box;17, clamping plate;18, screw;19, fixed block;20, round hole;21, plug rod;22, tension spring;23, insertion slot;24, avoid mouth. DETAILED DESCRIPTION

[0023] The technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model, and in addition, the forms of each structure recorded in the following implementation manners are only examples, and the utility model is not limited to each structure recorded in the following implementation manners, and all other implementation manners obtained by the person skilled in the art without making creative labor belong to the protection range of the utility model.

[0024] Referring to Figures 1-5 The utility model provides a heat exchanger fin trepanning device, including workstation 1, the upper surface of workstation 1 is fixedly connected with two symmetrical vertical boards 2 through bolt, the upper surface of two vertical boards 2 is fixedly connected with connecting plate 3 through bolt, the upper surface of connecting plate 3 is fixedly connected with shell 5 through bolt, one side of shell 5 is provided with avoid slot 6, two symmetrical guide rods 7 are welded between the inner wall of the upper and lower sides of avoid slot 6, two guide rods 7 are slidably connected with sliding frame 8, and the drive assembly that makes sliding frame 8 move is arranged between avoid slot 6 and sliding frame 8, one side of sliding frame 8 is fixedly connected with support plate 10 through bolt, the upper surface of support plate 10 is fixedly connected with motor 11 through bolt, and the output shaft of motor 11 is provided with punching assembly and passes through the lower surface of support plate 10, the upper surface of connecting plate 3 is provided with two symmetrical sliding ports 13, two sliding rods 14 are slidably connected in two sliding ports 13, and the top end of two sliding rods 14 on the same side is fixedly connected with square frame 15 through bolt, and through the sliding rod 14 and sliding port 13 that are equipped, the free sliding of fin can be carried out after being placed between two square frames 15, realizes the punching operation of different positions of fin, increases the applicability of the device, and the structure is simple, and it is convenient to operate.

[0025] The driving assembly is an electric push rod 9, one end of the electric push rod 9 is fixedly connected on the inner wall of the top of the avoiding groove 6, and the other end of the electric push rod 9 is fixed on the upper surface of the sliding frame 8; the driving assembly is arranged to make the sliding frame 8 move up and down at a constant speed along the guide rod 7, so that the punched hole is more regular, and meanwhile, the staff does not need to operate the sliding frame 8, so that the manpower is saved; the punching assembly is a sleeve, the sleeve is in key connection with the output shaft of the motor 11 penetrating through the lower surface of the supporting plate 10, and the drill bit 12 is detachably connected in the sleeve; the punching assembly is arranged to detach the drill bit 12, so that the drill bit 12 can be conveniently replaced when it is required to punch holes of different diameters on the heat exchanger fins, so as to meet the requirement of drilling holes of different sizes; a plurality of groups of symmetrical insertion grooves 23 are formed on the connecting plate 3, and the sliding rod 14 in the same sliding opening 13 is detachably connected with a fixed block 19 on one side through bolts; a circular hole 20 is formed on the fixed block 19, an insertion rod 21 is slidably connected in the circular hole 20, and the bottom ends of the two insertion rods 21 are inserted into the corresponding insertion grooves 23; the insertion rod 21 and the insertion groove 23 are arranged to position the sliding rod 14 after the sliding rod 14 moves, so that the displacement of the sliding rod 14 in the punching process is prevented, and the punching precision is affected; an avoiding opening 24 is formed on the upper surface of the connecting plate 3, and the avoiding opening 24 is arranged between the two sliding openings 13 and directly below the drill bit 12; the collecting box 16 is arranged between the workbench 1 and the connecting plate 3; the avoiding opening 24 and the collecting box 16 are arranged to collect the debris generated in the punching process, so that the debris is prevented from falling on the device, the secondary cleaning is not required, the manpower and time are saved; the circumferential outer wall of the insertion rod 21 is welded with a tension spring 22, and the other end of the tension spring 22 is fixed on the upper surface of the fixed block 19; the insertion rod 21 penetrates through the tension spring 22; the tension spring 22 is arranged to tightly insert the bottom end of the insertion rod 21 into the corresponding insertion groove 23, so that the vibration of the insertion rod 21 in the machining process is prevented, the insertion rod 21 is prevented from being separated from the insertion groove 23, and the movement of the fins is prevented; the clamping plate 17 is slidably connected in the frame 15; the upper surface of the frame 15 is provided with a threaded hole, and the threaded hole is in threaded connection with a lead screw 18; the bottom end of the lead screw 18 is rotatably connected with the clamping plate 17 through a bearing; the lead screw 18 and the clamping plate 17 are arranged to fix the fins, so that the vibration of the fins in the machining process is prevented, and the punching precision is affected; the lower surface of the clamping plate 17 is attached with a rubber pad; and the rubber pad is arranged to protect the fins during clamping.

[0026] The utility model discloses in using the following steps:

[0027] S1: when the heat exchanger fin needs to be punched, first find the corresponding drill bit 12 installed on the sleeve, then place the fin in the two boxes 15, then rotate the lead screw 18, since the lead screw 18 is threadedly connected with the box 15, so when rotating, the lead screw 18 will move downward, the lead screw 18 moves downward to drive the clamping plate 17 to move downward until the clamping plate 17 is in close contact with the fin, so as to fix the fin;

[0028] S2: after the fin is fixed, the plurality of slide rods 14, the boxes 15 and the fin form an integral structure, the plug rod 21 is pulled upward to be out of contact with the plug groove 23, then the integral structure is moved to move horizontally along the sliding port 13, until the position to be punched is aligned below the drill bit 12, then the plug rod 21 is inserted into the corresponding plug groove 23 to fix the integral structure;

[0029] S3: then start the motor 11 to drive the sleeve to rotate at high speed, and then drive the drill bit 12 to rotate at high speed, then start the electric push rod 9 to extend, drive the sliding frame 8 to move downward along the guide rod 7, so as to drive the punching assembly to move downward, when the drill bit 12 contacts with the fin, the punching operation can be performed.

[0030] Finally, it should be pointed out that in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0031] The utility model discloses the embodiment in the drawing, only relate to the structure related to the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

Claims

1. A heat exchanger fin opening device comprising a worktable (1), characterized in that: The upper surface of the workbench (1) is fixedly connected with two symmetrical vertical plates (2), the upper surfaces of the two vertical plates (2) are fixedly connected with a connecting plate (3), the upper surface of the connecting plate (3) is fixedly connected with a shell (5), one side of the shell (5) is provided with an avoiding slot (6), two symmetrical guide rods (7) are fixedly connected between the upper and lower inner walls of the avoiding slot (6), two sliding frames (8) are slidably connected on the two guide rods (7), a driving assembly for moving the sliding frame (8) is arranged between the avoiding slot (6) and the sliding frame (8), one side of the sliding frame (8) is fixedly connected with a supporting plate (10), the upper surface of the supporting plate (10) is fixedly connected with a motor (11), one end of the output shaft of the motor (11) penetrates through the lower surface of the supporting plate (10) and is provided with a punching assembly, the upper surface of the connecting plate (3) is provided with two symmetrical sliding openings (13), two sliding rods (14) are slidably connected in the two sliding openings (13), and the top ends of the two sliding rods (14) on the same side are fixedly connected with square frames (15).

2. The heat exchanger fin opening device according to claim 1, characterized by: The driving assembly is an electric push rod (9), one end of the electric push rod (9) is fixedly connected to the top inner wall of the avoiding slot (6), and the other end of the electric push rod (9) is fixed to the upper surface of the sliding frame (8).

3. The heat exchanger fin opening device according to claim 1, characterized in that: The punching assembly is a sleeve, the sleeve is connected with the output shaft of the motor (11) penetrating through the lower surface of the supporting plate (10) by a key, and a drill bit (12) is detachably connected in the sleeve.

4. The heat exchanger fin opening device according to claim 1, characterized by: A plurality of symmetrical groups of insertion grooves (23) are formed in the connecting plate (3), a fixing block (19) is detachably connected to one side of the sliding rod (14) in the same sliding opening (13) through bolts, a circular hole (20) is formed in the fixing block (19), an insertion rod (21) is slidably connected in the circular hole (20), and the bottom ends of the two insertion rods (21) are inserted into corresponding insertion grooves (23).

5. A heat exchanger fin slitting device according to claim 4 wherein: An avoiding opening (24) is formed in the upper surface of the connecting plate (3), the avoiding opening (24) is arranged between the two sliding openings (13) and directly below the drill bit (12), and a collecting box (16) is arranged between the workbench (1) and the connecting plate (3).

6. A heat exchanger fin slitting device according to claim 4 wherein: A tension spring (22) is fixedly connected to the circumferential outer wall of the insertion rod (21), the other end of the tension spring (22) is fixed to the upper surface of the fixing block (19), and the insertion rod (21) penetrates through the tension spring (22).

7. The heat exchanger fin slitting device of claim 1 wherein: A clamping plate (17) is slidably connected in the square frame (15), a threaded hole is formed in the upper surface of the square frame (15), a lead screw (18) is threadedly connected in the threaded hole, and the bottom end of the lead screw (18) is rotatably connected with the clamping plate (17) through a bearing.

8. A heat exchanger fin opening device according to claim 7, characterized in that: A rubber pad is attached to the lower surface of the clamping plate (17).

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