Tool bit replacing mechanism of plate processing equipment

Abstract

According to the tool bit replacing mechanism of the plate machining equipment, one end of a fixing shaft is fixed to a cross beam, the fixing shaft is sleeved with a shaft sleeve, the shaft sleeve is fixedly connected with a first chain wheel, and the first chain wheel is in transmission connection with a second chain wheel on an output shaft of a third driving motor through a chain; a rotary disc is fixed to the tail end of the shaft sleeve, a plurality of through holes are formed in the rotary disc in a circumferential array mode, and a telescopic tool bit device is installed at each through hole. The cylinder body end of a downward-pressing driving cylinder above the rotating disc is fixedly connected to the cross beam, a buffer block is fixed to the tail end of a telescopic rod of the downward-pressing driving cylinder, and the buffer block can impact the top end of a lengthening rod of the telescopic tool bit device, so that tool bits can penetrate through the corresponding through holes to protrude out of the bottom face of the rotating disc. According to the tool bit replacing mechanism, the telescopic tool bit device with the tool bits of different sizes and types can rotate to the position below the downward pressing driving cylinder according to needs, then punching operation is carried out through the downward pressing driving cylinder, in this way, manual tool bit replacing is not needed, punching operation can be carried out continuously, and the production efficiency of plates is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of plate processing, and in particular relates to a cutter head replacement mechanism of plate processing equipment. Background Art

[0002] The decorative aluminum plates produced by our company are usually made by cutting and punching the whole plate with a tool. Depending on the purpose and size of the plate, it is usually necessary to punch holes of different sizes and types on the plate. Before the invention of our company, according to the different types and sizes of holes, it was often necessary to manually change the cutter head or move the plate to another punching device to punch different holes. This is not only troublesome, but also seriously affects the production efficiency of the plate. Utility Model Content

[0003] Based on the content of the background technology, the utility model provides a tool head replacement mechanism for plate processing equipment, which includes a crossbeam, a fixed shaft, a shaft sleeve, a first sprocket, a third drive motor, a second sprocket, a turntable, a telescopic tool head device, a downward drive cylinder and a buffer block;

[0004] One end of the fixed shaft is fixedly connected to the bottom surface of the crossbeam, and the shaft sleeve is sleeved on the fixed shaft, and a bearing is provided between the shaft sleeve and the fixed shaft, and the middle part of the shaft sleeve is fixedly connected to the first sprocket, and the output shaft of the third driving motor is fixedly connected to the second sprocket, and the first sprocket and the second sprocket are connected through a chain transmission. The third driving motor can be a reduction motor or a stepping motor or a servo motor that can be reversed, and can drive the first sprocket to rotate under the drive of the third driving motor, so that the shaft sleeve rotates with the fixed shaft as the axis; a support plate is fixedly connected to the crossbeam, and the third driving motor can be installed on the support plate. Of course, a tensioning device is also provided next to the chain, and the tensioning device adjusts the tension of the chain by adjusting the position of the tensioning sprocket by a cylinder. It is a prior art and will not be described in detail here;

[0005] The end of the sleeve is fixedly connected to a turntable so that the turntable can rotate with the sleeve. A plurality of through holes are formed in a circumferential array on the turntable. A retractable cutter head device is installed at each through hole of the turntable. These retractable cutter head devices have cutter heads of different sizes and types.

[0006] A downward driving cylinder is arranged above the turntable, and the downward driving cylinder is arranged vertically. The cylinder end of the downward driving cylinder is fixedly connected to the bottom surface of the crossbeam, and the end of the telescopic rod of the downward driving cylinder is fixedly connected to a buffer block. When the turntable rotates, it can be adjusted so that the corresponding telescopic cutter head device is located below the buffer block. The downward driving cylinder is specifically an air cylinder or a hydraulic cylinder. The buffer block can hit the top of the cutter head extension rod of the corresponding telescopic cutter head device under the drive of the downward driving cylinder, so that the cutter head can pass through the corresponding through hole of the turntable and protrude from the bottom surface of the turntable, so as to perform punching operations on the plate below the turntable.

[0007] Preferably, the telescopic cutter head device includes a cartridge seat, a sliding piece, a buffer spring and a rebound spring, an extension rod and a cutter head;

[0008] The cylinder seat is fixedly installed at the corresponding through hole on the turntable, and the sliding piece is arranged in the cylinder seat, and the side surface of the sliding piece slides in contact with the inner wall of the cylinder seat, a buffer spring is arranged between the sliding piece and the inner top surface of the cylinder seat, and a rebound spring is arranged between the sliding piece and the inner bottom surface of the cylinder seat; through holes are respectively opened on the top and bottom surfaces of the cylinder seat, and an extension rod is passed through the through hole to pass through the cylinder seat, and the sliding piece is fixed to the middle of the extension rod, and the end of the extension rod is fixedly connected with a cutter head, and the cutter head is located in the corresponding through hole of the turntable; in this way, after the extension rod is pressed down by the buffer block of the downward driving cylinder and the cutter head protrudes from the bottom surface of the turntable, it can rebound under the action of the rebound spring, that is, the cutter head rebounds, and under the action of the buffer spring, it quickly reaches a balanced position. Such a retractable cutter head device is durable and suitable for punching operations by being pushed by the downward driving cylinder.

[0009] Furthermore, a plurality of limiting holes are provided around the side of the turntable, and a limiting drive cylinder is also provided next to the turntable. The limiting drive cylinder is specifically an air cylinder or a hydraulic cylinder. The cylinder body of the limiting drive cylinder is fixedly connected to the crossbeam through a support plate. When the turntable rotates so that the corresponding telescopic cutter head device is located below the buffer block, the end of the limiting telescopic rod of the limiting drive cylinder can be placed in the corresponding limiting hole on the side of the turntable, so that the turntable remains fixed and cannot rotate, thereby avoiding displacement of the turntable during drilling.

[0010] Preferably, a casing is further provided on the outside of the sleeve, and the casing is fixedly connected to the bottom surface of the beam by bolts. The casing is provided with an obstacle avoidance hole at the position of the chain, and a bearing is further provided between the lower part of the sleeve and the inner wall of the casing. The setting of the casing can protect the rotating parts, and the bearing matching method between the casing and the sleeve can make the rotation of the sleeve more stable and greatly reduce the shaking.

[0011] Through the above technical solution, the utility model has at least the following beneficial effects:

[0012] The present application describes a tool head replacement mechanism for sheet metal processing equipment, which enables the turntable to rotate smoothly through the cooperation of components such as a fixed shaft, a sleeve, a first sprocket, a third drive motor, a second sprocket and a turntable, so that a telescopic tool head device with tool heads of different sizes and types can be rotated to the bottom of the downward drive cylinder as needed, and the tool head extension rod end of the telescopic tool head device is pushed by the buffer block of the downward drive cylinder to perform punching operations; in this way, there is no need to manually replace the tool head, and the punching operation can be carried out uninterruptedly, which greatly improves the production efficiency of the sheet metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1Schematic diagram of the overall structure of the tool head replacement mechanism described in the embodiment of the present application;

[0014] Figure 2 This is a partial internal schematic diagram of the cutter head replacement mechanism described in an embodiment of the present application, in which the housing is hidden;

[0015] Figure 3 This is a cross-sectional view of the retractable cutter head device described in an embodiment of the present application. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0017] In the description of this application, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, the terms describing the positional relationship are only used for illustrative purposes and cannot be understood as limiting this patent; if there are terms such as "first", "second", etc., they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the said features. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0018] In the description of the utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0019] refer to Figures 1 to 3 A tool head replacement mechanism for plate processing equipment includes a crossbeam 3, a fixed shaft 501, a sleeve 502, a first sprocket 503, a third drive motor 504, a second sprocket 505, a turntable 506, a telescopic tool head device 6, a downward drive cylinder 507, and a buffer block 508;

[0020] The first sprocket 503 is fixedly connected to the first gear 504 of the present invention, and the second sprocket 505 is fixedly connected to the first gear 504 of the present invention.

[0021] The end of the sleeve 502 is fixedly connected to a turntable 506 so that the turntable 506 can rotate with the sleeve 502. The turntable 506 is provided with a plurality of through holes in a circumferential array. A retractable cutter head device 6 is mounted at each through hole of the turntable 506. These retractable cutter head devices 6 have cutter heads 606 of different sizes and types.

[0022] A downward driving cylinder 507 is arranged above the turntable 506. The downward driving cylinder 507 is arranged vertically. The cylinder end of the downward driving cylinder 507 is fixedly connected to the bottom surface of the beam 3. The end of the telescopic rod of the downward driving cylinder 507 is fixedly connected to the buffer block 508. When the turntable 506 rotates, it can be adjusted so that the corresponding telescopic cutter head device 6 is located below the buffer block 508. The downward driving cylinder 507 is specifically an air cylinder or a hydraulic cylinder. The buffer block 508 can hit the top of the cutter head extension rod 605 of the corresponding telescopic cutter head device 6 under the drive of the downward driving cylinder 507, so that the cutter head 606 can pass through the corresponding through hole of the turntable 506 and protrude from the bottom surface of the turntable 506, so as to perform punching operations on the plate below the turntable 506.

[0023] refer to Figure 3 The retractable cutter head device 6 includes a cartridge seat 601, a sliding piece 602, a buffer spring 603 and a rebound spring 604, an extension rod 605 and a cutter head 606;

[0024] The cartridge seat 601 is fixedly mounted on the corresponding through hole on the turntable 506, the sliding piece 602 is arranged in the cartridge seat 601, the side surface of the sliding piece 602 is in sliding contact with the inner wall of the cartridge seat 601, a buffer spring 603 is arranged between the sliding piece 602 and the inner top surface of the cartridge seat 601, and a rebound spring 604 is arranged between the sliding piece 602 and the inner bottom surface of the cartridge seat 601; through holes are respectively opened on the top and bottom surfaces of the cartridge seat 601, and an extension rod 605 is arranged through the through hole to pass through the cartridge seat 601, and the sliding piece 602 is fixed on the extension rod 605 In the middle part, the end of the extension rod 605 is fixedly connected to the cutter head 606, and the cutter head 606 is located in the corresponding through hole of the turntable 506; in this way, after the extension rod 605 is pressed down by the buffer block 508 of the downward driving cylinder 507 and the cutter head 606 protrudes from the bottom surface of the turntable 506, it can rebound under the action of the rebound spring 604, that is, the cutter head 606 rebounds and quickly reaches a balanced position under the action of the buffer spring 603. Such a retractable cutter head device 6 is durable and suitable for punching operations by being pushed by the downward driving cylinder 507.

[0025] refer to Figure 1 , a plurality of limiting holes 509 are opened around the side of the turntable 506, and a limiting drive cylinder 510 is also provided next to the turntable 506. The limiting drive cylinder 510 is specifically a pneumatic cylinder or a hydraulic cylinder. The cylinder body of the limiting drive cylinder 510 is fixedly connected to the crossbeam 3 through a support plate. When the turntable 506 rotates so that the corresponding telescopic cutter head device 6 is located below the buffer block 508, the end of the limiting telescopic rod of the limiting drive cylinder 510 can be placed in the corresponding limiting hole 509 on the side of the turntable 506, so that the turntable 506 remains fixed and cannot rotate, thereby avoiding displacement of the turntable 506 during drilling.

[0026] In this specific embodiment, refer to Figure 1 A casing 511 is also provided on the outside of the sleeve 502. The casing 511 is fixedly connected to the bottom surface of the beam 3 by bolts. The casing 511 is provided with an obstacle avoidance hole at the position of the chain. A bearing is also provided between the lower part of the sleeve 502 and the inner wall of the casing 511. The setting of the casing 511 can protect the rotating parts. The bearing matching method between the casing 511 and the sleeve 502 can make the rotation of the sleeve 502 more stable and greatly reduce the shaking.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Based on the present invention and the above description, relevant personnel can make various changes and modifications without departing from the technical idea of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tool head replacement mechanism for plate processing equipment, characterized by: It comprises a crossbeam (3), a fixed shaft (501), a shaft sleeve (502), a first sprocket (503), a third drive motor (504), a second sprocket (505), a rotating disk (506), a telescopic cutter head device (6), a downward driving cylinder (507) and a buffer block (508); One end of the fixed shaft (501) is fixedly connected to the bottom surface of the crossbeam (3), the shaft sleeve (502) is sleeved on the fixed shaft (501), a bearing is provided between the shaft sleeve (502) and the fixed shaft (501), a first sprocket (503) is fixedly connected to the middle portion of the shaft sleeve (502), a second sprocket (505) is fixedly connected to the output shaft of the third drive motor (504), and the first sprocket (503) and the second sprocket (505) are connected via a chain transmission; The end of the shaft sleeve (502) is fixedly connected to a turntable (506), a plurality of through holes are provided in a circumferential array on the turntable (506), and a retractable cutter head device (6) is installed at each through hole of the turntable (506); A downward driving cylinder (507) is provided above the turntable (506). The downward driving cylinder (507) is vertically provided. The cylinder end of the downward driving cylinder (507) is fixedly connected to the bottom surface of the crossbeam (3). The end of the telescopic rod of the downward driving cylinder (507) is fixedly connected to a buffer block (508). When driven by the downward driving cylinder (507), the buffer block (508) can hit the top end of the cutter head extension rod (605) of the corresponding telescopic cutter head device (6), so that the cutter head (606) can pass through the corresponding through hole of the turntable (506) and protrude from the bottom surface of the turntable (506).

2. The tool head replacement mechanism for plate processing equipment according to claim 1, characterized in that: The telescopic cutter head device (6) comprises a cartridge seat (601), a sliding plate (602), a buffer spring (603), a rebound spring (604), an extension rod (605) and a cutter head (606); The cartridge seat (601) is fixedly mounted on a corresponding through hole on the turntable (506); the sliding piece (602) is arranged in the cartridge seat (601); the side surface of the sliding piece (602) is in sliding contact with the inner wall of the cartridge seat (601); a buffer spring (603) is arranged between the sliding piece (602) and the inner top surface of the cartridge seat (601); and a rebound spring (604) is arranged between the sliding piece (602) and the inner bottom surface of the cartridge seat (601); through holes are respectively provided on the top and bottom surfaces of the cartridge seat (601); an extension rod (605) is provided through the through holes and passes through the cartridge seat (601); the sliding piece (602) is fixed to the middle part of the extension rod (605); the end of the extension rod (605) is fixedly connected to a cutter head (606); and the cutter head (606) is located in the corresponding through hole of the turntable (506).

3. The tool head replacement mechanism for plate processing equipment according to claim 1 or 2, characterized in that: A plurality of limiting holes (509) are provided around the side of the turntable (506), and a limiting driving cylinder (510) is also provided next to the turntable (506). The cylinder body of the limiting driving cylinder (510) is fixedly connected to the crossbeam (3) through a support plate, and the end of the limiting telescopic rod of the limiting driving cylinder (510) can be placed in the corresponding limiting hole (509) on the side of the turntable (506).

4. The tool head replacement mechanism for plate processing equipment according to claim 1 or 2, characterized in that: A housing (511) is further provided on the outside of the shaft sleeve (502), and the housing (511) is fixedly connected to the bottom surface of the crossbeam (3) by means of bolts. The housing (511) is provided with an obstacle avoidance through hole at the position where the chain is located, and a bearing is further provided between the lower portion of the shaft sleeve (502) and the inner wall of the housing (511).

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