A cutting tool for a round soft part

Abstract

The utility model discloses a kind of cutting tool for circular soft piece, belong to workpiece cutting technical field, including base and be set on the profiling chuck module, rotary cutter module and compression mechanism module of base;Profiling chuck module is fixed under the action of compression mechanism module to circular soft piece;Rotary cutter module is formed under the action of compression mechanism module on circular soft piece and is cut by rotary cutting motion to circular soft piece.The cutting tool for circular soft piece of the utility model can effectively solve the deformation of the cutting process of prior art to circular soft piece, the problem of position deviation, cause uneven problem of welding surface.

Description

Technical Field

[0001] This utility model belongs to the field of workpiece cutting technology. Specifically, it relates to a cutting fixture for circular soft parts. Background Technology

[0002] In automotive air filter intake systems, in order to reduce engine vibration, adapt to temperature changes during engine operation, and allow for flexible design of engine installation space, corrugated flexible tubes need to be designed into the intake system. Currently, most corrugated flexible tubes are produced by blow molding combined with welding processes.

[0003] Therefore, a high degree of flatness is required on the cut end face of blow-molded parts; otherwise, it will affect the product's appearance quality. Traditional cutting fixtures use a punching method. During the cutting process, due to the thin wall thickness and soft material of the blow-molded parts, they collapse and deform before the notch is punched open. This leads to misalignment of the cutting line, resulting in poor appearance. Uneven welding surfaces cause deviations in weld penetration, and uneven overflow after welding affects the product's appearance. To completely solve the problems of deformation and misalignment during the cutting of soft blow-molded parts, a rotary cutting fixture is selected. Before cutting the product, a pressure piercing is used to create a notch, and then the cutting is performed by rotation. Utility Model Content

[0004] The purpose of this utility model is to provide a cutting fixture for circular soft parts that addresses the aforementioned shortcomings, thereby solving the problems of easy deformation and misalignment during the cutting process of circular soft parts in existing technologies, which result in uneven welding surfaces. To achieve the above objective, this utility model provides the following technical solution:

[0005] A cutting fixture for circular soft parts includes a base and a contour clamping module, a rotary cutting module, and a clamping mechanism module disposed on the base; the contour clamping module fixes the circular soft part under the action of the clamping mechanism module; the rotary cutting module forms a cut on the circular soft part under the action of the clamping mechanism module, and cuts the circular soft part through a rotary cutting motion.

[0006] Furthermore, the clamping mechanism module includes a clamping cylinder, a guide post, and a guide sleeve; the guide post is fixed on the base; the guide sleeve is slidably sleeved on the guide post; the cylinder body of the clamping cylinder is connected to the top of the guide post through a first connecting plate, and its telescopic rod points downward and is parallel to the guide post; the telescopic rod is connected to the guide sleeve through a second connecting plate, driving the guide sleeve to slide up and down on the guide post.

[0007] Furthermore, the contour clamping module includes an upper mold and a lower mold; the upper mold is connected to the guide sleeve via a third connecting plate and moves up and down with the guide sleeve; the lower mold is connected to the base; the upper mold and the lower mold cooperate to fix the circular soft part.

[0008] Furthermore, the rotary cutter module includes a housing; the housing contains a rotary cutting cylinder and two synchronous gears; both synchronous gears are rotatably connected to the housing via bearings and are arranged parallel in the vertical direction; the two synchronous gears are driven by a synchronous belt; the telescopic end of the rotary cutting cylinder is connected to the synchronous belt via a fourth connecting plate, driving the synchronous belt to move up and down between the two synchronous gears; a rotary cutting blade is provided on the lower synchronous gear, which follows the rotation of the synchronous gear to complete the rotary cutting of the circular soft part.

[0009] Furthermore, a rack is provided on the side of the synchronous belt that contacts the synchronous gear, and meshes with the synchronous gear.

[0010] Furthermore, the rotary cutter includes a rotary handle and a cutter; one side of the rotary handle is fixedly connected to a synchronous gear, and the other side is fixedly connected to the cutter; the rotary handle rotates with the synchronous gear, driving the cutter to cut around the circumferential direction of the circular soft part.

[0011] Furthermore, the rotary cutter module is provided in two sets for simultaneously cutting both ends of a circular soft part.

[0012] Furthermore, it also includes a control unit; the control unit is electrically connected to the pressing cylinder and the rotary cutting cylinder respectively; the control unit controls the two sets of rotary cutting cylinders to move synchronously.

[0013] Furthermore, the bottom mold of the contour clamping module is connected to the base via a spring support structure.

[0014] Furthermore, the base is provided with a hollowed-out waste discharge port; a receiving trolley is provided below the waste discharge port.

[0015] The beneficial effects of this utility model are:

[0016] A circular flexible part, fixed by a contour clamping module, is locally incised by a cutter when pressed down by a clamping cylinder. The rotary cutting cylinder then drives a rotary cutting blade on a synchronous gear to perform a rotary cutting motion around the incised part. The rotary cutting module, rotary cutting cylinder, synchronous belt, rack, and synchronous gear achieve circular motion. The vertical design reduces floor space, and cutting waste can be discharged through a waste discharge port in the base plate. The cutter uses a standard part design, making spare parts procurement more convenient. This invention achieves a smooth cut on the product end face, completely solving the deformation problem during cutting, improving the appearance quality of welded products, and eliminating product quality risks. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 yes Figure 1 Top view;

[0019] Figure 3 yes Figure 1 Side view;

[0020] Figure 4 yes Figure 3 Enlarged view of point A;

[0021] Figure 5 This is a cross-sectional view of the rotary cutter module;

[0022] In the attached diagram: 1. Base; 2. Support leg; 3. Control unit; 4. Rotary cutter module; 5. Contouring clamp module; 6. Clamping mechanism module; 7. Clamping cylinder; 8. Guide post; 9. Guide sleeve; 10. Upper mold; 101. Bottom mold; 11. Spring support structure; 12. Counter; 13. Rotary cutter handle; 14. Cutter; 15. Rotary cutting cylinder; 16. Synchronous belt; 17. Synchronous gear. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] like Figure 1-4As shown, a cutting fixture for circular flexible parts includes a base 1 and a contour clamping module 5, a rotary cutting tool module 4, and a clamping mechanism module 6 mounted on the base 1. Through the cooperation of these three modules, the circular flexible part is cut, resulting in a flat cut end. Specifically, the contour clamping module 5 includes an upper mold 10 and a lower mold 101. The lower end face of the upper mold 10 and the upper end face of the lower mold 101 have corresponding groove structures that match the shape of the circular flexible part. The lower mold 101 is connected to the base 1 via a spring support structure 11. The upper mold 10 is connected to the clamping mechanism module 6. The clamping mechanism module 6 drives downwards to engage with the lower mold 101. The two groove structures cooperate to fix the circular flexible part, with both ends of the fixed circular flexible part extending beyond the contour clamping module. Cutting is then completed by two sets of rotary cutting tool modules 4. The base 1 has a hollowed-out waste discharge port, and the cut waste is transported away by a receiving trolley below the waste discharge port. The preferred contouring clamping module 5 can also employ existing contouring flexible clamping fixtures, which are intelligent clamping fixtures combining contouring technology and adaptive control. These fixtures can automatically adjust the clamping surface and clamping force according to the shape, size, and material of the workpiece, achieving highly adaptable and non-destructive clamping. Their core principle lies in the real-time sensing and response to changes in the workpiece contour through the coordinated work of sensors, drive mechanisms, and control systems; alternatively, flexible positioning clamping fixtures can be used, both adapting to the clamping of non-standard and irregularly shaped workpieces. The structures of contouring flexible clamping fixtures and flexible positioning clamping fixtures will not be elaborated here.

[0027] Specifically, the pressing mechanism module 6 includes a pressing cylinder 7, a guide post 8, and a guide sleeve 9. The guide post 8 is fixed on the base 1. The guide sleeve 9 is connected to the guide post 8 and can slide up and down along the guide post 8. One side of the guide sleeve 9 is fixedly connected to the upper mold 10 through a third connecting plate. The other side of the guide sleeve 9 is fixedly connected to the telescopic rod of the pressing cylinder 7 through a second connecting plate. The telescopic rod is arranged parallel to the guide post 8. The cylinder body of the pressing cylinder 7 is fixed to the top of the guide post 8 through a first connecting plate. The pressing cylinder 7 is inverted and drives the telescopic rod to move downward, thereby causing the guide sleeve 9 to slide on the guide post 8, thereby causing the upper mold 10 to move downward and cooperate with the bottom mold 101 to press the round soft part.

[0028] Specifically, the rotary cutting tool module 4 includes a box body and a rotary cutting cylinder 15 and two synchronous gears 17 arranged inside the box body. The linear motion of the rotary cutting cylinder 15 is coordinated with the synchronous gears 17 to output circular motion. Both of the two synchronous gears 17 are rotatably connected inside the box body through bearing structures, and the two synchronous gears 17 are arranged parallel to each other vertically. They are connected by a synchronous belt 16. The telescopic rod of the rotary cutting cylinder 15 is connected to the synchronous belt 16 through a fourth connecting plate. The movement of the connection part between the telescopic rod and the synchronous belt 16 is limited to between the two synchronous gears 17 to avoid contact with the two synchronous gears 17. One side of the synchronous belt 16 in contact with the synchronous gears 17 is provided with a rack for meshing with the synchronous gears 17. Through the telescopic movement of the rotary cutting cylinder 15, the synchronous belt 16 can be driven to drive the rotation of the two synchronous gears 17. The rotary cutting tool module 4 adopts a vertical structure, which can reduce the floor space. A rotary cutting tool 14 is fixedly connected to the center of the synchronous gear 17 at the bottom. Specifically, the rotary cutting tool 14 includes a rotary tool handle 13 and a cutting tool 14. The structure of the rotary tool handle 13 is in an "匸" shape. The initial position after being connected to the synchronous gear 17 is with the opening facing upward. One side is fixedly connected to the synchronous gear 17, and the other side is fixedly connected to the cutting tool 14. The cutting tool 14 is installed upward. The position of the cutting tool 14 is below one side of the bottom die 101. When the pressing cylinder 7 starts to drive the upper die 10 to move downward, the upper die 10 first cooperates with the bottom die 101 to press the circular soft part, and then continues to drive the upper die 10 and the lower die to press the spring support structure 11 downward together until the circular soft part outside the profiling clamping module 5 is broken by the cutting tool 14, and the pressing cylinder 7 stops moving. The spring coefficient of the spring support mechanism is selected to be appropriately high and has a certain supporting ability. At the same time, it can prevent the upper die 10 and the bottom die 101 from simultaneously compressing the spring support structure 11 before the circular soft part is pressed tightly, resulting in unstable pressing.

[0029] A PLC control unit 3 is also provided on the base 1. It is electrically connected to the pressing cylinder 7 and the rotary cutting cylinder 15. By setting the control logic, the movements of the pressing cylinder 7 and the rotary cutting cylinder 15 are controlled to ensure the simultaneous operation of the two rotary cutting cylinders 15. If the profiling clamping module 5 adopts a profiling flexible fixture, its control system can be replaced for control.

[0030] Support feet 2 are provided on the lower end surface of the base 1 to reserve the moving space for the receiving trolley. A counter 12 is provided above the guide post 8 for counting the number of workpieces completed by cutting.

[0031] The above-mentioned base 1, the first connecting plate, the second connecting plate, the third connecting plate, the fourth connecting plate, the rotary tool handle 13, etc. are processed from aluminum. The support feet 2 include four and are processed from steel. The upper die 10 and the bottom die 101 of the profiling clamping module 5 are processed from nylon materials.

[0032] During operation, the tooling connector is connected to the control unit 3, and the tooling action logic is set. After confirming that the design is complete, the blow-molded product is placed on the bottom mold 101 of the contour clamping module 5. Press the start button to start automatic operation. First, the clamping cylinder 7 is activated. During the pressing process, while clamping the product, the cutting blade 14 pierces the product to form the initial position of the rotary cutting slit through the downward pressure. Then, the rotary cutting cylinder 15 drives the rotary handle 13 and the cutting blade 14 to make a circular motion to remove the waste material at both ends of the product. After the action is completed, the clamping cylinder 7 returns to the origin, and the bottom mold 101 of the contour clamping module 5 returns to the initial position under the action of the spring force. Then, the product is taken out. The initial position of the cutting blade 14 is located under the contour clamping bottom mold 101, which can effectively protect the operator from scratches during the picking and placing process.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A cutting fixture for circular soft parts, characterized in that: It includes a base (1) and a contour clamping module (5), a rotary cutter module (4) and a clamping mechanism module (6) set on the base (1); the contour clamping module (5) fixes the circular soft part under the action of the clamping mechanism module (6); the rotary cutter module (4) forms a cut on the circular soft part under the action of the clamping mechanism module (6) and cuts the circular soft part by rotary cutting motion.

2. The cutting fixture for circular soft parts according to claim 1, characterized in that: The pressing mechanism module (6) includes a pressing cylinder (7), a guide post (8), and a guide sleeve (9); the guide post (8) is fixed on the base (1); the guide sleeve (9) is slidably sleeved on the guide post (8); the cylinder body of the pressing cylinder (7) is connected to the top of the guide post (8) through a first connecting plate, and its telescopic rod is downward and parallel to the guide post (8); the telescopic rod is connected to the guide sleeve (9) through a second connecting plate, driving the guide sleeve (9) to slide up and down on the guide post (8).

3. The cutting fixture for circular soft parts according to claim 2, characterized in that: The contour clamping module (5) includes an upper mold (10) and a bottom mold (101); the upper mold (10) is connected to the guide sleeve (9) through a third connecting plate and moves up and down with the guide sleeve (9); the bottom mold (101) is connected to the base (1); the upper mold (10) and the bottom mold (101) cooperate to fix the circular soft parts.

4. The cutting fixture for circular soft parts according to claim 3, characterized in that: The rotary cutter module (4) includes a housing; the housing is equipped with a rotary cutting cylinder (15) and two synchronous gears (17); the two synchronous gears (17) are rotatably connected to the housing through bearings and are arranged in parallel in the vertical direction; the two synchronous gears (17) are driven by a synchronous belt (16); the telescopic end of the rotary cutting cylinder (15) is connected to the synchronous belt (16) through a fourth connecting plate, driving the synchronous belt (16) to move up and down between the two synchronous gears (17); the lower synchronous gear (17) is equipped with a rotary cutter (14), which completes the rotary cutting of the circular soft part by following the rotation of the synchronous gear (17).

5. The cutting fixture for circular soft parts according to claim 4, characterized in that: The synchronous belt (16) has a rack on the side that contacts the synchronous gear (17), which meshes with the synchronous gear (17).

6. The cutting fixture for circular soft parts according to claim 5, characterized in that: The rotary cutter (14) includes a rotary handle (13) and a cutter (14); one side of the rotary handle (13) is fixedly connected to a synchronous gear (17), and the other side is fixedly connected to the cutter (14); the rotary handle (13) rotates with the synchronous gear (17), driving the cutter (14) to cut around the circumferential direction of the circular soft part.

7. The cutting fixture for circular soft parts according to claim 6, characterized in that: The rotary cutter module (4) is provided in two sets for simultaneously cutting both ends of a circular soft part.

8. The cutting fixture for circular soft parts according to claim 7, characterized in that: It also includes a control unit (3); the control unit (3) is electrically connected to the pressing cylinder (7) and the rotary cutting cylinder (15) respectively; the control unit (3) controls the two sets of rotary cutting cylinders (15) to move synchronously.

9. A cutting fixture for circular soft parts according to claim 8, characterized in that: The bottom mold (101) of the contour clamp module (5) is connected to the base (1) through a spring support structure (11).

10. A cutting fixture for circular soft parts according to claim 9, characterized in that: The base (1) is provided with a hollowed-out waste discharge port; a material receiving trolley is provided at the lower part of the waste discharge port.

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