Centrifugal pipe fitting cutting tool bit structure

Abstract

The utility model discloses a centrifugal pipe fitting cutting tool bit structure which comprises a driving system, a tool bit driven by the driving system to rotate and a blade assembly arranged on the tool bit, and is characterized in that a sliding groove is formed in the tool bit, a sliding block matched with the sliding groove in a sliding mode is arranged in the sliding groove, the blade assembly is fixed with one end of the sliding block, and the other end of the sliding block is fixed with the blade assembly. A balancing weight is arranged at the other end of the sliding block, an elastic piece enabling the sliding block to reset is arranged between the sliding block and the groove end wall of the sliding groove, and the sliding block can abut against the two groove end walls of the sliding groove to prevent the sliding block from disengaging and sliding out. The sliding blocks slide in the sliding grooves and rotate together with the sliding grooves through centrifugal force generated by high-speed rotation of the tool bits, the structure is simple, the overall structural size is small, therefore, more tool bits can be installed in the same space, abrasion is small, and cost is low.

Description

Technical Field

[0001] The utility model relates to a processing device for a heat exchange copper tube, in particular to a centrifugal tube cutting tool head structure. Background Art

[0002] Copper tubes are widely used as heat exchange tubes in refrigeration equipment such as air conditioners. However, the copper tubes need to be cut into appropriate lengths before use, so some cutting equipment has appeared on the market. The blade assembly of the above equipment is eccentrically mounted on the cutter head, and the blade assembly can rotate with the cutter head. There is a through hole in the center of the cutter head, and the copper tube passes through the hole. A feed sleeve is also provided on the cutter head, and the feed sleeve rotates with the cutter head but can move along the cutter head. The driving cylinder can push the feed sleeve through the push rod so that it can move linearly along the cutter head. There is an inclined block and a knife rod fixed with the inclined block on the blade assembly. The blade is arranged on the knife rod through a bearing, and the inclined block is located in the slide groove of the cutter head and the inclined surface is exposed outside the cutter head through the elasticity of the spring in the slide groove. When cutting is required, the feed sleeve is pushed by the driving cylinder and the push rod to move, thereby squeezing the inclined surface, so that the inclined block compresses the spring and moves toward the center of the cutter head. The inclined block drives the blade to move at the same time, so that the blade moves to a position in contact with the copper tube and cuts off the copper tube as the cutter head rotates around the copper tube.

[0003] However, the blade assembly of the above-mentioned cutting equipment has a complex feeding structure, a large cutter head, and severe wear on the pressure ring, cutter head and bevel. Therefore, the present application designs a centrifugal pipe cutting cutter head structure to solve the above-mentioned problems. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a centrifugal pipe cutting tool head structure.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A centrifugal pipe cutting tool head structure includes a drive system, a tool head driven to rotate by the drive system, and a blade assembly arranged on the tool head, characterized in that: a slide groove is provided on the tool head, a slider that slides with the slide groove is provided in the slide groove, the blade assembly is fixed to one end of the slider, a counterweight block is provided at the other end of the slider, an elastic member for resetting the slider is provided between the slider and the end wall of the slide groove, and the slider can abut against the two end walls of the slide groove to prevent the slider from slipping out.

[0007] The cutter head is provided with an outer ring sleeve, and the groove end wall of the sliding groove is formed by the inner wall of the outer ring sleeve.

[0008] The slide groove is a T-shaped groove.

[0009] It also includes a knife mounting seat, on which a slewing support bearing is arranged, and the knife head is connected to the slewing support bearing to realize rotation.

[0010] The knife mounting seat is provided with a driving motor, the driving motor is provided with a driving pulley, the edge of the knife head is provided with belt teeth, and the transmission belt cooperates with the driving pulley and the belt teeth.

[0011] It also includes a tube mounting seat, on which an optical axis fixing seat is arranged, in which a guide hole for guiding the workpiece is arranged, and in which a through hole is arranged.

[0012] The blade assembly comprises a knife rod arranged on a slide block, and the cutting knife is installed on the knife rod through a bearing.

[0013] The beneficial effect of the utility model is that the utility model utilizes the centrifugal force generated by the high-speed rotation of the cutter head to make the slider slide in the slide groove and rotate together. Of course, we control the structure of the slider to make the end without the blade assembly heavier, so that during the rotation of the cutter head, the slider drives the blade assembly to move toward the center of the cutter head, thereby contacting the workpiece and cutting the workpiece. After the cutter head stops, the slider is reset by the elastic member. Therefore, the above structure can drive the slider to feed the blade assembly without additional power. Not only is the structure simple, but the overall structure is small in size. Therefore, more cutter heads can be installed in the same space, and the wear is also small and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is the overall structural view of the utility model;

[0016] Figure 2 It is a cross-sectional structural view of the utility model;

[0017] Figure 3 It is a partial exploded structural view of the utility model;

[0018] Figure 4 It is a structural view of the knife mounting seat and the tube mounting seat separated. DETAILED DESCRIPTION

[0019] The advantages and features of the present disclosure and its implementation method will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0020] The shapes, sizes, ratios, angles and numbers disclosed in the drawings for describing the embodiments of the present disclosure are only examples, and therefore the present disclosure is not limited to the details shown. Throughout this specification, the same reference numerals refer to the same elements. In the following description, when the detailed description of the relevant known functions or configurations is determined to be unnecessary to blur the focus of the present disclosure, the detailed description will be omitted. In the case of using "including", "having" and "comprising" described in this specification, other parts may be added unless "only" is used. Unless otherwise indicated, the terms in the singular may include plural forms.

[0021] When explaining an element, although not explicitly described, the element is understood to include a range of error.

[0022] When describing a positional relationship, for example, when the positional relationship is described as "on," "above," "below," and "adjacent to," unless "immediately" or "directly" is used, one or more parts may be arranged between two other parts.

[0023] When describing a time relationship, for example, when a time sequence is described as “after,” “subsequently,” “next,” and “before,” discontinuous cases may be included unless “just” or “directly” is used.

[0024] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from other elements. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0025] As those skilled in the art can fully understand, the features of the different embodiments of the present disclosure can be coupled or combined with each other in part or in whole, and can cooperate with each other in various ways and be driven technically. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.

[0026] Reference Figures 1 to 4The utility model discloses a centrifugal pipe cutting tool head structure, including a driving system 1, a tool head 2 driven to rotate by the driving system 1, and a blade assembly arranged on the tool head 2. The tool head 2 is provided with a slide groove 3, the slide groove 3 is located on the end face of the tool head 2 and the length extends from one side of the end face to the other side. The tool head 2 has an avoidance hole penetrating the slide groove 3, the avoidance hole is used to avoid the workpiece 18, and the slide groove 3 is preferably a T-shaped groove. A slider 4 is provided in the slide groove 3 to slide with the slide groove 3, and a counterweight block 9 is provided at the other end of the slider 4. The slider 4 is a square plate with rounded ends. The blade assembly is fixed to the slider 4 and moves with the slider 4. An elastic member 5 is provided between the slider 4 and the groove end wall of the slide groove 3 to reset the slider 4. The elastic member 5 is preferably a spring used to reset the blade assembly after the cutting is completed. The slider 4 can abut against the two end walls of the slide groove 3, and the end walls of the groove play a limiting role to prevent the slider 4 from sliding out of the slide groove 3. A long hole 19 is provided in the slider 4, and the workpiece 18 passes through the long hole 19. The slider 4 will avoid the workpiece 18 when sliding through the long hole 19. Because a part of the slider 4 is on one side of the center of the cutter head 2 and the blade assembly is on the other side of the center of the cutter head 2, the centrifugal force generated by the high-speed rotation of the drive system 1 drives the cutter head 2 to slide in the slide groove 3 and rotate together. Therefore, when rotating, the slider 4 will slide toward the heavier side with the counterweight block 9, thereby driving the blade assembly to move beyond the center of the cutter head 2, that is, to move toward the workpiece 18. The workpiece 18 is located at the center of the cutter head 2, thereby cutting the workpiece 18. The blade assembly includes a tool rod 6 arranged on the slider 4, and the cutting knife 7 is installed on the tool rod 6 through a bearing. The installation of the cutting knife 7 is also a conventional structure, so it is not described in detail.

[0027] As shown in the figure, the cutter head 2 is provided with an outer ring sleeve 8, and the groove end wall of the slide groove 3 is composed of the inner wall of the outer ring sleeve 8. The outer ring sleeve 8 is fixed to the cutter head 2 by screws. The above structure facilitates the assembly of the slider 4, and a counterweight block 9 is provided at one end of the slider 4, and the blade assembly is located at the other end of the slider 4. In this way, the structure of the slider 4 can be relatively regular and symmetrical, which is convenient for processing and assembly. Of course, the counterweight block 9 is fixed at the end away from the blade assembly. An arc-shaped protective plate extends from the outer ring sleeve 8 to prevent the cutting knife 7 from flying out. The slide groove 3 is preferably a T-shaped slot.

[0028] As shown in the figure, it also includes a knife mounting seat 13, on which a slewing support bearing (not shown in the figure) is provided, and a gasket (not shown in the figure) is provided between the slewing support bearing and the knife head 2, and the knife head 2 is connected to the slewing support bearing by a screw to achieve rotation. The knife mounting seat 13 is provided with a driving motor of the driving system 1, and the driving motor is provided with a driving pulley, and the edge of the knife head 2 has teeth, and the driving belt cooperates with the driving pulley and the teeth. The driving system 1 of the present application is a motor and a synchronous belt transmission mechanism, and the above structure is a conventional driving structure, so it is not described in detail.

[0029] It also includes a tube mounting seat 15, and the knife mounting seat 13 has mounting shafts on both sides, and the tube mounting seat 15 is provided with mounting holes opposite to each other, and the mounting shafts are located in the mounting holes and locked by screws. The above structure can adjust the angle of the knife mounting seat 13, and the tube mounting seat 15 is provided with an optical axis fixing seat 16, and the optical axis fixing seat 16 is also fixed to the tube mounting seat 15 by screws, and a guide hole for guiding the workpiece 18 is provided in the optical axis fixing seat 16, and a through hole is provided in the tool head 2. Therefore, through the above structure, the workpiece 18 is supported by the guide hole and does not contact the through hole, thereby preventing the tool head 2 from rotating and rubbing the workpiece 18.

[0030] When the centrifugal pipe cutting blade structure of the present application is used on a production line, a single blade can be used alone, or multiple blades can be used together in parallel.

[0031] The above is a detailed introduction to a centrifugal pipe cutting head structure provided by an embodiment of the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method of the utility model and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A centrifugal pipe cutting tool head structure, comprising a drive system, a tool head driven to rotate by the drive system, and a blade assembly arranged on the tool head, characterized in that: The cutter head is provided with a slide groove, and a slider which slides with the slide groove is provided in the slide groove. The blade assembly is fixed to one end of the slider, and a counterweight is provided at the other end of the slider. An elastic member for resetting the slider is provided between the slider and the end wall of the slide groove, and the slider can abut against the two end walls of the slide groove to prevent the slider from slipping out.

2. A centrifugal pipe cutting tool head structure according to claim 1, characterized in that: The cutter head is provided with an outer ring sleeve, and the groove end wall of the sliding groove is formed by the inner wall of the outer ring sleeve.

3. The centrifugal pipe cutting tool head structure according to claim 1, characterized in that: The slide groove is a T-shaped groove.

4. The centrifugal pipe cutting tool head structure according to claim 1, characterized in that: It also includes a knife mounting seat, on which a slewing support bearing is arranged, and the knife head is connected to the slewing support bearing to realize rotation.

5. A centrifugal pipe cutting tool head structure according to claim 4, characterized in that: The knife mounting seat is provided with a driving motor, the driving motor is provided with a driving pulley, the edge of the knife head is provided with belt teeth, and the transmission belt cooperates with the driving pulley and the belt teeth.

6. A centrifugal pipe cutting tool head structure according to claim 4, characterized in that: It also includes a tube mounting seat, on which an optical axis fixing seat is arranged, in which a guide hole for guiding the workpiece is arranged, and in which a through hole is arranged.

7. The centrifugal pipe cutting tool head structure according to claim 1, characterized in that: The blade assembly comprises a knife rod arranged on a slide block, and the cutting knife is installed on the knife rod through a bearing.

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