Adjustable automobile air conditioner air pipe cutting device

Abstract

The utility model provides an adjustable automobile air conditioner air pipe cutting device, which relates to the technical field of air pipe cutting and comprises a top plate, a hydraulic cylinder is fixedly mounted on the inner wall of the top plate, a cutting mechanism is arranged at one end of a piston rod of the hydraulic cylinder and comprises an adjusting block, and the upper end of the adjusting block is fixedly connected with one end of the piston rod of the hydraulic cylinder. The upper end of the adjusting block is fixedly connected with guide rods which are symmetrically distributed, the upper ends of the two guide rods both penetrate through and extend to the position above the top plate, through the cutting mechanism, the clamping plate is matched with the V-shaped containing block, air pipes can be rapidly subjected to center positioning after being placed, it is ensured that the cutting lengths of the two ends of the air pipes are consistent, manual repeated adjustment is not needed, and the working efficiency is improved. The cutting precision and efficiency are greatly improved, the time cost is saved, collision and abrasion of the cutting knife and the V-shaped placing block are ingeniously avoided through the formed cutting avoiding groove, the service life of the cutting knife is prolonged, the equipment maintenance cost is reduced, and the long-term stable operation effect of the device is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of duct cutting technology, and in particular to an adjustable automotive air conditioning duct cutting device. Background Technology

[0002] The automotive air conditioning duct cutting device is a device used for cutting automotive air conditioning ducts, and it has been widely used in the field of duct cutting. It has been found in the use of an existing automotive air conditioning duct cutting device that most existing automotive ventilation ducts are made by blow molding or injection molding processes. Regardless of whether blow molding or injection molding is used, it is necessary to cut off the scrap material at both ends of the automotive ventilation duct in order to fit with other automotive parts.

[0003] For example, a Chinese patent document discloses an automotive air conditioning duct cutting device (publication number: CN218195370U). Although this patent involves placing the ventilation duct on a workbench, adjusting two cutting blades to a suitable position via a moving mechanism, activating two hydraulic cylinders, and using the two hydraulic cylinders to control the up-and-down movement of a lifting plate, which in turn controls the distance between the two cutting blades and the automotive ventilation duct, adjusting the distance allows the two cutting blades to cut off the scraps at both ends of the automotive ventilation duct, the use of two hydraulic cylinders can prevent the lifting plate from swinging left and right, and can cut different types of ducts, reducing limitations.

[0004] However, when placing the duct before cutting, operators often need to rely on visual observation and repeated manual adjustments to position the duct. They not only have to move the duct back and forth to ensure that it is centered on the longitudinal axis of the workbench to prevent one end from having more scrap and the other end from having less after cutting, but this adjustment process consumes a lot of time and greatly reduces the cutting efficiency. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the need for repeated manual adjustments to position the duct before cutting, which greatly reduces cutting efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable automotive air conditioning duct cutting device includes a top plate, a hydraulic cylinder is fixedly installed on the inner wall of the top plate, a cutting mechanism is provided at one end of the piston rod of the hydraulic cylinder, and the cutting mechanism includes an adjusting block, the upper end of the adjusting block is fixedly connected to one end of the piston rod of the hydraulic cylinder;

[0008] The upper end of the adjusting block is fixedly connected to symmetrically distributed guide rods, the upper ends of both guide rods passing through and extending to the top plate. The lower end of the adjusting block is provided with an adjusting groove. A servo motor is fixedly installed on one side of the adjusting block. The output shaft of the servo motor is fixedly installed with a bidirectional lead screw through a coupling. One end of the bidirectional lead screw passes through the adjusting block and is rotatably connected to the inner wall of one side of the adjusting groove through a bearing. The external threads of the bidirectional lead screw are connected to symmetrically distributed threaded blocks. The upper external ends of both threaded blocks are slidably connected to the inner part of the adjusting groove.

[0009] A positioning and cutting component is provided below the threaded block.

[0010] Preferably, the positioning and cutting assembly includes a mounting block, the upper end of which is fixedly connected to the lower end of the threaded block, and a cutting blade is fixedly connected to the lower end of the mounting block.

[0011] Preferably, the lower end of the mounting block is fixedly connected to symmetrically distributed telescopic rods, and the lower end of the telescopic rods is fixedly connected to an arc-shaped pressing block.

[0012] Preferably, a first return spring is fixedly connected to the outer side of the upper end of the arc-shaped mounting block, and the upper ends of the two first return springs are fixedly connected to the lower end of the mounting block.

[0013] Preferably, one side of the mounting block is fixedly connected to a symmetrically distributed sliding rod, one end of the sliding rod is fixedly connected to a stop block, and both sliding rods are slidably sleeved with moving blocks.

[0014] Preferably, a second return spring is fixedly connected to one side of the stop block, and one end of each of the two second return springs is fixedly connected to one side of the moving block. The inner wall of the moving block is slidably fitted with symmetrically distributed movable rods.

[0015] Preferably, the lower ends of the two movable rods are fixedly connected to clamping plates, and the upper ends of the clamping plates are fixedly connected to symmetrically distributed third return springs. The upper ends of the two third return springs are fixedly connected to the lower ends of the movable block.

[0016] Preferably, the lower end of the top plate is fixedly connected to symmetrically distributed support columns, the lower ends of the two support columns are fixedly connected to a base plate, the upper end of the base plate is fixedly connected to a V-shaped placement block, and the upper end of the V-shaped placement block is provided with symmetrically distributed cutting and clearance grooves.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this invention, the cutting mechanism, through which the clamping plate cooperates with the V-shaped placement block, can quickly center the duct after placement, ensuring that the cutting lengths at both ends of the duct are consistent. This eliminates the need for repeated manual adjustments, greatly improving cutting accuracy and efficiency, saving time and costs. Furthermore, the cutting avoidance groove cleverly prevents the cutting blade from colliding and wearing with the V-shaped placement block, extending the service life of the cutting blade, reducing equipment maintenance costs, and ensuring the long-term stable operation of the device. Attached Figure Description

[0019] Figure 1 A schematic diagram of the main structure of an adjustable automotive air conditioning duct cutting device provided by this utility model;

[0020] Figure 2 A perspective view of the adjusting block structure of an adjustable automotive air conditioning duct cutting device provided by this utility model;

[0021] Figure 3 A perspective view of the mounting block structure of an adjustable automotive air conditioning duct cutting device provided by this utility model;

[0022] Figure 4 A perspective view of the moving block structure of an adjustable automotive air conditioning duct cutting device provided by this utility model.

[0023] Legend: 1. Top plate; 2. Hydraulic cylinder; 3. Adjusting block; 31. Guide rod; 32. Adjusting moving groove; 33. Servo motor; 34. Two-way lead screw; 35. Threaded block; 4. Mounting block; 41. Cutting blade; 42. Telescopic rod; 43. Arc-shaped pressing block; 44. First return spring; 45. Slide rod; 46. Stop block; 47. Moving block; 48. Second return spring; 49. Movable rod; 410. Clamping plate; 411. Third return spring; 5. Support column; 6. Base plate; 7. V-shaped placement block; 71. Cutting clearance groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figure 1-4 As shown, this utility model provides a technical solution: an adjustable automotive air conditioning duct cutting device, including a top plate 1. The top plate 1 is made of high-strength, rigid aluminum alloy with certain rust resistance. This material can maintain structural stability for a long time in the complex working environment of the workshop. A hydraulic cylinder 2 is fixedly installed on the inner wall of the top plate 1 by bolts. The hydraulic cylinder 2 is a high-precision, high-thrust industrial-grade hydraulic cylinder. A cutting mechanism is finely arranged at one end of the piston rod of the hydraulic cylinder 2, which is responsible for efficiently and accurately cutting the automotive air conditioning duct to ensure the processing quality of the duct. The cutting mechanism includes an adjusting block 3. The adjusting block 3 is a key component for supporting and driving the cutting component below. Its upper end is firmly fixedly connected to one end of the piston rod of the hydraulic cylinder 2 by welding to ensure stable and reliable force transmission.

[0030] The upper end of the adjusting block 3 is fixedly connected by welded guide rods 31 that are symmetrically distributed. The guide rods 31 are straight and smooth, made of high-strength alloy steel, and their upper ends precisely penetrate and extend above the top plate 1, matching the gap of the guide holes reserved in the top plate 1. During the lifting and lowering process of the adjusting block 3, they provide precise guidance to ensure the stability of the vertical movement trajectory and avoid deviation and shaking. The lower end of the adjusting block 3 is provided with an adjusting groove 32 using a precision milling process. The depth and width of the adjusting groove 32 are adapted to the threaded block 35, providing dedicated space for the sliding of the threaded block 35. A servo motor 33 is fixedly installed on one side of the adjusting block 3 by bolts. The servo motor 33 is a high-performance industrial servo motor that can precisely control the speed and direction. The motor has a bidirectional lead screw 34 fixedly mounted on its output shaft via a coupling. The bidirectional lead screw 34 is selected with a module and helix angle that are compatible with the threaded block 35 to ensure precise and efficient meshing transmission, stably transmitting the rotational motion of the motor to the threaded block 35. One end of the bidirectional lead screw 34 precisely passes through the adjusting block 3 and is rotatably connected to the inner wall of the adjusting moving groove 32 on one side through a high-precision bearing. The bearing is a ball bearing with high load-bearing capacity and low friction coefficient to ensure smooth rotation of the bidirectional lead screw 34 without jamming. The outside of the bidirectional lead screw 34 is precisely meshed with the symmetrically distributed threaded blocks 35 through threads. The threaded blocks 35 serve as the driving carrier of the cutting component, and the upper outer part of its upper end is fitted with the inner wall of the adjusting moving groove 32, allowing it to slide flexibly within it.

[0031] The threaded block 35 is finely equipped with a positioning and cutting component below it, which can accurately position the air duct and efficiently complete the cutting task, ensuring processing accuracy and efficiency.

[0032] The positioning and cutting assembly includes a mounting block 4, which serves as the support base for the cutting blade 41 and related auxiliary components. Its upper end is firmly fixed to the lower end of the threaded block 35 by welding. The lower end of the mounting block 4 is fixedly connected to the cutting blade 41 by welding. The cutting blade 41 is made of high-hardness, wear-resistant and sharp cemented carbide material. After fine grinding, the blade is sharp and can quickly and neatly cut the automotive air conditioning duct, ensuring a flat and smooth cut surface.

[0033] The lower end of the mounting block 4 is fixedly connected by welding to symmetrically distributed telescopic rods 42. The telescopic rods 42 are made of stainless steel with precise internal structure and smooth telescopic movement, and have good buffering and support performance. The lower end of the telescopic rods 42 is fixedly connected by welding to an arc-shaped pressing block 43. The arc-shaped pressing block 43 is made of metal with moderate surface hardness and is not easy to damage the duct material. Its arc design fits the surface of the duct and can effectively press down and fix the duct when cutting.

[0034] The upper outer side of the arc-shaped mounting block 4 is fixedly connected to the first return spring 44 by welding. The first return spring 44 is made of high-quality spring steel with an elastic coefficient that has been rigorously tested. The upper ends of the two first return springs 44 are fixedly connected to the lower end of the mounting block 4 by welding to form a stable elastic buffer system, which helps the arc-shaped pressing block 43 to return to its original position after cutting.

[0035] One side of the mounting block 4 is fixedly connected by welding to symmetrically distributed slide rods 45. The slide rods 45 are straight and smooth, providing precise guidance for the sliding of the moving block 47. One end of the slide rod 45 is fixedly connected by welding to a stop block 46. The stop block 46 is ingeniously designed, which not only limits the movement of the moving block 47, but also protects the slide rods 45 to a certain extent. The outer gap of the two slide rods 45 is adapted to the moving block 47, and the moving block 47 can slide flexibly on it.

[0036] A second return spring 48 is fixedly connected to one side of the stop block 46 by welding. One end of the two second return springs 48 is fixedly connected to one side of the moving block 47 by welding to assist in clamping the air duct. The inner wall of the moving block 47 is fitted with the symmetrically distributed movable rods 49 with a gap. The movable rods 49 can move smoothly up and down in it, providing stable guidance for the lifting and lowering of the clamping plate 410.

[0037] The lower ends of the two movable rods 49 are fixedly connected to a clamping plate 410 by welding. The clamping plate 410 is made of rubber or plastic material with a certain friction on the surface, which is not easy to scratch the air duct. The upper end of the clamping plate 410 is fixedly connected to a symmetrically distributed third return spring 411 by welding. The third return spring 411 is also made of high-quality spring steel, with stable elasticity, providing elastic support for the clamping plate 410, so that it can continuously and stably clamp the air duct during the cutting process.

[0038] The lower end of the top plate 1 is fixedly connected to symmetrically distributed support columns 5 by welding. The lower ends of the two support columns 5 are fixedly connected to the bottom plate 6 by welding. The upper end of the bottom plate 6 is fixedly connected to the V-shaped placement block 7 by welding. The angle of the inclined surfaces on both sides of the V-shaped placement block 7 is precise. The inclined surfaces on both sides naturally guide the air duct to slide down to the vicinity of the center position, initially defining the lateral position of the air duct. The upper end of the V-shaped placement block 7 is milled to have symmetrically distributed cutting avoidance grooves 71, which provide dedicated space for the cutting blade 41 to cut in. This cleverly avoids the collision and wear between the cutting blade 41 and the V-shaped placement block 7, extends the service life of the cutting blade 41, reduces equipment maintenance costs, and ensures the long-term stable operation of the device.

[0039] The working process of this utility model:

[0040] Step 1: Place the car air conditioning duct smoothly on the V-shaped placement block 7 above the base plate 6. The V-shaped structure uses its two inclined surfaces to naturally guide the duct to slide down to the vicinity of the center position, initially defining the lateral position of the duct. Start the servo motor 33 to drive the bidirectional lead screw 34 to rotate. The rotation of the bidirectional lead screw 34 drives the two mounting blocks 4 to move relative to each other through the two threaded blocks 35. At this time, one of the clamping plates 410 contacts one end of the duct and pushes the duct so that the clamping plates 410 at both ends of the duct are in contact with and clamp the duct, thereby symmetrically positioning the two ends of the duct. At the same time, the bidirectional lead screw 34 continues to drive the cutting blade 41 to move. The clamping plates 410 continue to symmetrically limit the two ends of the duct through the contraction of the second return spring 48.

[0041] Step two: When the cutting position is reached, the hydraulic cylinder 2 is activated, the piston rod extends and pushes the adjusting block 3 downward. The adjusting block 3 drives the lower components to descend synchronously. The arc-shaped pressing block 43 contacts the air duct first. As it descends, the telescopic rod 42 contracts under force, the first return spring 44 is compressed, and the arc-shaped pressing block 43 presses tightly against the upper surface of the air duct, forming a stable three-dimensional clamping system with the positioned clamping plate 410, firmly fixing the air duct. At the same time, the cutting blade 41 continues to descend, and the third return spring 411 contracts in coordination, so that the clamping plate 410 stably limits the ends of the air duct, allowing the cutting blade 41 to cut into the scrap parts at both ends of the air duct. Under the protection of the guide rod 31, it cuts stably and removes the excess scrap.

[0042] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable automotive air conditioning duct cutting device, comprising a top plate (1), characterized in that: A hydraulic cylinder (2) is fixedly installed on the inner wall of the top plate (1). A cutting mechanism is provided at one end of the piston rod of the hydraulic cylinder (2), and the cutting mechanism includes an adjusting block (3). The upper end of the adjusting block (3) is fixedly connected to one end of the piston rod of the hydraulic cylinder (2). The upper end of the adjusting block (3) is fixedly connected with symmetrically distributed guide rods (31). The upper ends of the two guide rods (31) extend through and above the top plate (1). The lower end of the adjusting block (3) is provided with an adjusting moving groove (32). A servo motor (33) is fixedly installed on one side of the adjusting block (3). The output shaft of the servo motor (33) is fixedly installed with a bidirectional lead screw (34) through a coupling. One end of the bidirectional lead screw (34) passes through the adjusting block (3) and is rotatably connected to the inner wall of one side of the adjusting moving groove (32) through a bearing. The external thread of the bidirectional lead screw (34) is connected with symmetrically distributed threaded blocks (35). The upper ends of the two threaded blocks (35) are slidably connected to the inner side of the adjusting moving groove (32). A positioning and cutting assembly is provided below the threaded block (35).

2. The adjustable automotive air conditioning duct cutting device according to claim 1, characterized in that: The positioning and cutting assembly includes a mounting block (4), the upper end of which is fixedly connected to the lower end of the threaded block (35), and a cutting blade (41) is fixedly connected to the lower end of the mounting block (4).

3. The adjustable automotive air conditioning duct cutting device according to claim 2, characterized in that: The lower end of the mounting block (4) is fixedly connected to symmetrically distributed telescopic rods (42), and the lower end of the telescopic rods (42) is fixedly connected to an arc-shaped pressing block (43).

4. The adjustable automotive air conditioning duct cutting device according to claim 3, characterized in that: The upper outer side of the arc-shaped mounting block (4) is fixedly connected to a first reset spring (44), and the upper ends of the two first reset springs (44) are fixedly connected to the lower end of the mounting block (4).

5. The adjustable automotive air conditioning duct cutting device according to claim 2, characterized in that: One side of the mounting block (4) is fixedly connected to symmetrically distributed slide rods (45), one end of the slide rod (45) is fixedly connected to a stop block (46), and both slide rods (45) are slidably sleeved with moving blocks (47).

6. The adjustable automotive air conditioning duct cutting device according to claim 5, characterized in that: A second return spring (48) is fixedly connected to one side of the stop block (46), and one end of each of the two second return springs (48) is fixedly connected to one side of the moving block (47). The inner wall of the moving block (47) is slidably sleeved with movable rods (49) that are symmetrically distributed.

7. The adjustable automotive air conditioning duct cutting device according to claim 6, characterized in that: The lower ends of the two movable rods (49) are fixedly connected to a clamping plate (410), and the upper ends of the clamping plate (410) are fixedly connected to symmetrically distributed third return springs (411). The upper ends of the two third return springs (411) are fixedly connected to the lower ends of the movable block (47).

8. The adjustable automotive air conditioning duct cutting device according to claim 1, characterized in that: The lower end of the top plate (1) is fixedly connected to symmetrically distributed support columns (5), and the lower ends of the two support columns (5) are fixedly connected to a base plate (6). The upper end of the base plate (6) is fixedly connected to a V-shaped placement block (7), and the upper end of the V-shaped placement block (7) is provided with symmetrically distributed cutting and clearance grooves (71).

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