Push broach device for pipe fitting cutting equipment

Abstract

The utility model provides a push broach device for pipe fitting cutting equipment, which comprises a bottom plate, a guide rail and a lead screw connecting seat are arranged on the bottom plate, a slider is slidably connected onto the guide rail, a lead screw is rotatably connected onto the lead screw connecting seat, the lead screw is parallel to the guide rail, and the lead screw is in threaded fit with the slider. A push broach servo motor used for driving the lead screw to rotate is arranged on the bottom plate. Two connecting arms are arranged on the sliding block, and idler wheels are arranged on the two connecting arms respectively. An annular groove is formed in a sliding outer sleeve on the pipe fitting cutting equipment, and a rolling wheel is connected into the annular groove. The servo motor serves as a driving device, the lead screw serves as a transmission mechanism, the servo motor has the advantages of being high in response speed and accurate and stable in operation, the servo motor is matched with the high-precision lead screw transmission mechanism, the moving precision of the sliding outer sleeve can be effectively improved, then the stability of the cutter feeding speed is improved, and the accuracy of the cutter feeding amount is guaranteed; and the cutting quality of the pipe fitting cutting equipment on the pipe fitting is high in consistency.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting processing equipment, and particularly relates to a push knife device for a pipe fitting cutting device. Background Art

[0002] During the production and processing of pipe fittings, it is usually necessary to cut the pipe fittings. The non-chip cutting equipment is the commonly used cutting equipment at present. A rotatable cutter head is provided on the existing non-chip cutting equipment, and a cutting tool that can move radially along the cutter head is provided on the cutter head. When cutting the pipe fittings, the cutter head rotates, and at the same time, the cutting tool makes a feeding movement along the radial direction of the cutter head, so that the cutting tool gradually cuts into the pipe fittings along the radial direction, thereby realizing the cutting of the pipe fittings; a cutting groove is formed on the pipe fittings through the cutting of the cutting tool. At this time, the pipe fittings are not completely cut off, but the strength at the cutting groove position on the pipe fittings is weak and prone to fracture. Subsequently, a pulling device applies a pulling force to both ends of the pipe fittings, so that the cutting groove on the pipe fittings is pulled off, thereby realizing the segmentation of the pipe fittings. This cutting method generates less debris or basically no debris, and has high cutting accuracy.

[0003] Among them, in order to realize the radial movement of the cutting tool, a sliding push sleeve is sleeved outside the cutter head. The sliding outer sleeve can move along the axial direction of the cutter head, and the cutting tool is slidably installed on a cutter head. The tool holder and the push sleeve are in inclined surface fit, and the movement of the sliding outer sleeve is used to drive the cutting tool to move radially towards the cutter head, thereby realizing the feeding movement of the cutting tool.

[0004] When the existing non-chip cutting equipment cuts the pipe fittings, it is required that the cutting tool can cut into the pipe fittings to a certain depth but ensure that the pipe fittings will not be completely cut off by the cutting tool. This requires precise control of the feeding movement of the cutting tool. On the existing non-chip cutting machine, a cylinder or a hydraulic cylinder is used to push the sliding outer sleeve to move to realize the feeding movement of the cutting tool. When the cylinder or the hydraulic cylinder drives the cutting tool to make a feeding movement, there are problems such as unstable feeding speed and difficult precise control of the cutting tool feeding amount. Summary of the Invention

[0005] The purpose of the utility model is to solve the deficiencies of the prior art and provide a push knife device for a pipe fitting cutting device.

[0006] The purpose of the utility model is realized by the following technical scheme: A push knife device for a pipe fitting cutting device includes a bottom plate. A guide rail and a lead screw connection seat are provided on the bottom plate. A slider is slidably connected to the guide rail. The lead screw is rotatably connected to the lead screw connection seat. The lead screw is parallel to the guide rail, and the lead screw is in threaded fit with the slider; A push knife servo motor for driving the lead screw to rotate is provided on the bottom plate.

[0007] Two connecting arms are provided on the slider, and rollers are respectively provided on the two connecting arms; An annular groove is provided on the sliding outer sleeve of the pipe fitting cutting device, and the rollers are connected in the annular groove.

[0008] Among them, the cutting tool is arranged on the cutter head of the pipe fitting cutting equipment. The sliding outer sleeve is arranged outside the cutter head and can move along the axial direction of the cutter head. The pushing tool device is used to push the sliding outer sleeve to move so as to realize the feeding movement of the cutting tool. The pushing tool servo motor drives the lead screw to rotate, the lead screw drives the slider to move, and when the slider moves, it drives the connecting arm and the roller to move synchronously, so as to drive the sliding outer sleeve to move along the axial direction of the cutter head to realize the feeding movement of the cutting tool. The utility model uses the servo motor as the driving device and the lead screw as the transmission mechanism. The servo motor has the advantages of fast response speed, precise and stable operation. Cooperating with the high-precision lead screw transmission mechanism, it can effectively improve the movement precision of the sliding outer sleeve, further improve the stability of the cutting tool feeding speed, and ensure the accuracy of the cutting tool feed amount, so that the cutting quality of the pipe fitting cutting equipment for pipe fittings reaches a high consistency.

[0009] Preferably, mounting holes are provided on the bottom plate.

[0010] Preferably, a first synchronous pulley is provided on the output shaft of the pushing tool servo motor, a second synchronous pulley is provided at one end of the lead screw, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

[0011] Preferably, the groove width of the annular groove is consistent with the diameter of the roller.

[0012] Preferably, the rollers on the two connecting arms are symmetrically connected to both sides of the annular groove.

[0013] Preferably, one end of the connecting arm is fixedly connected to the slider, a roller shaft is provided at the other end of the connecting arm, the roller shaft is arranged along the radial direction of the sliding outer sleeve, and the roller is rotatably connected to the roller shaft.

[0014] The beneficial effect of the utility model is that the utility model uses the servo motor as the driving device and the lead screw as the transmission mechanism. The servo motor has the advantages of fast response speed, precise and stable operation. Cooperating with the high-precision lead screw transmission mechanism, it can effectively improve the movement precision of the sliding outer sleeve, further improve the stability of the cutting tool feeding speed, and ensure the accuracy of the cutting tool feed amount, so that the cutting quality of the pipe fitting cutting equipment for pipe fittings reaches a high consistency. Brief Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of one direction of the utility model.

[0016] Figure 2 It is a schematic structural diagram of another direction of the utility model.

[0017] Figure 3 It is a schematic diagram when the utility model is installed on the pipe fitting cutting equipment.

[0018] In the figure: 1. Bottom plate, 2. Mounting hole, 3. Guide rail, 4. Slide block, 5. Pushing knife servo motor, 6. Lead screw, 7. Lead screw connecting seat, 8. First synchronous pulley, 9. Second synchronous pulley, 10. Synchronous belt, 11. Connecting arm, 12. Roller shaft, 13. Roller, 14. Cutter head, 15. Cutting tool, 16. Sliding outer sleeve, 17. Annular groove. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0020] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations to the present invention.

[0021] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of one element can be one, while in other embodiments, the number of this element can be multiple. The term "one" should not be construed as a limitation on the number.

[0022] As Figures 1-3 shown, a pushing knife device for a pipe fitting cutting device includes a bottom plate 1. A guide rail 3 and a lead screw connecting seat 7 are provided on the bottom plate 1. A slide block 4 is slidably connected to the guide rail 3. A lead screw 6 is rotatably connected to the lead screw connecting seat 7. The lead screw 6 is parallel to the guide rail 3. The lead screw 6 is in threaded cooperation with the slide block. A pushing knife servo motor 5 for driving the rotation of the lead screw 6 is provided on the bottom plate 1. Two connecting arms 11 are provided on the slide block 4. Rollers 13 are respectively provided on the two connecting arms 11. An annular groove 17 is provided on a sliding outer sleeve 16 of the pipe fitting cutting device. The roller 13 is connected to the annular groove 17.

[0023] A cutting tool 15 is provided on the cutter head 14 of the pipe fitting cutting device. A sliding outer sleeve 16 is arranged outside the cutter head 14 and can move along the axial direction of the cutter head 14. The push tool device is used to push the sliding outer sleeve 16 to move so as to realize the feeding movement of the cutting tool 15. The push tool servo motor 5 drives the lead screw 6 to rotate. The lead screw 6 drives the slider 4 to move. When the slider 4 moves, it drives the connecting arm 11 and the roller 13 to move synchronously, thereby driving the sliding outer sleeve 16 to move along the axial direction of the cutter head 14 to realize the feeding movement of the cutting tool. The utility model uses a servo motor as the driving device and the lead screw 6 as the transmission mechanism. The servo motor has the advantages of fast response speed, precise and stable operation. Cooperating with the high-precision lead screw 6 transmission mechanism, it can effectively improve the moving accuracy of the sliding outer sleeve 16, and further improve the stability of the cutting tool feeding speed, and ensure the accuracy of the cutting tool feed amount, so that the cutting quality of the pipe fitting cutting device for pipe fittings reaches a high consistency.

[0024] Wherein, a first synchronous pulley 8 is arranged on the output shaft of the push tool servo motor 5, a second synchronous pulley 9 is arranged at one end of the lead screw 6, and the first synchronous pulley 8 and the second synchronous pulley 9 are connected by a synchronous belt 10. The push tool servo motor 5 drives the first synchronous pulley 8 to rotate. When the first synchronous pulley 8 rotates, it drives the second synchronous pulley 9 to rotate through the synchronous belt 10, and further drives the lead screw 6 to rotate.

[0025] One end of the connecting arm 11 is fixedly connected to the slider. The other end of the connecting arm 11 is provided with a roller shaft 12. The roller shaft 12 is arranged along the radial direction of the sliding outer sleeve 16. The roller 13 is rotatably connected to the roller shaft 12. The roller 13 in this solution can also be replaced by a bearing. The connecting arm 11 is fixedly connected to the slider by bolts.

[0026] The rollers 13 on the two connecting arms 11 are symmetrically connected to both sides of the annular groove 17.

[0027] The groove width of the annular groove 17 is the same as the diameter of the roller 13, so that the roller 13 will not have a large lateral runout in the annular groove 17.

[0028] Mounting holes 2 are provided on the bottom plate 1. The bottom plate 1 is fixedly installed on the pipe fitting cutting device through the mounting holes 2.

[0029] The utility model is not limited to the above best implementation manner. Anyone can obtain other various forms of products under the inspiration of the utility model. However, no matter what changes are made in its shape or structure, as long as it has a technical solution identical or similar to the present application, it falls within the protection scope of the utility model.

Claims

1. A knife pushing device for pipe cutting equipment, characterized in that: It includes a bottom plate, a guide rail and a screw rod connection seat are provided on the bottom plate, a slider is slidably connected to the guide rail, a screw rod is rotatably connected to the screw rod connection seat, the screw rod is parallel to the guide rail, and the screw rod and the slider are threadedly matched; a push-knife servo motor for driving the screw rod to rotate is provided on the bottom plate; The slide block is provided with two connecting arms, and rollers are respectively provided on the two connecting arms; an annular groove is provided on the sliding outer sleeve on the pipe cutting device, and the rollers are connected in the annular groove.

2. A knife pushing device for pipe cutting equipment according to claim 1, characterized in that: The bottom plate is provided with a mounting hole.

3. A knife pushing device for pipe cutting equipment according to claim 1, characterized in that: A first synchronous pulley is arranged on the output shaft of the push-knife servo motor, a second synchronous pulley is arranged at one end of the screw rod, and the first synchronous pulley and the second synchronous pulley are connected via a synchronous belt.

4. A knife pushing device for pipe cutting equipment according to claim 1, characterized in that: The groove width of the annular groove is consistent with the diameter of the roller.

5. The blade pushing device for pipe cutting equipment according to claim 1, characterized in that: The rollers on the two connecting arms are symmetrically connected to the two sides of the annular groove.

6. A knife pushing device for pipe cutting equipment according to claim 1, characterized in that: One end of the connecting arm is fixedly connected to the sliding block, and the other end of the connecting arm is provided with a roller shaft, which is arranged along the radial direction of the sliding sleeve, and the roller is rotatably connected to the roller shaft.

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