A spiral slot assembly for use inside a workpiece

Abstract

The present application relates to the technical field of rotary groove assembly, in particular to a rotary groove assembly for the inside of workpiece, the present application drives the piston to lift by injecting external hydraulic oil into the cylinder body, realizes the up and down deviation movement under the rebound force of the die spring, and then drives the rolling groove head to also deviate, and then realizes the eccentric rotary groove action in the inside of the workpiece to be processed. The injection of hydraulic oil is controllable, realizes the instant effect of flexible and sensitive control of the deviation amount, and guarantees the accuracy and processing quality of the rotary groove process. The bottom sliding block can servo control the rotary groove depth of the workpiece, further improves the processing content and quality of the internal rotary groove. In addition, the present application reduces material loss, truly realizes the improvement of work efficiency and the reduction of labor cost, and makes the economic maximization for the development of enterprises.

Description

Technical Field

[0001] This invention relates to the field of grooving assembly technology, and more specifically to a grooving assembly for use inside a workpiece. Background Technology

[0002] A swivel assembly is a component with a groove on a specific trajectory (such as a swivel disk or swivel shaft). When the components move relative to each other (such as rotating or moving in a straight line), the trajectory of the groove guides the components to move along a preset path, thereby transforming one form of motion into another.

[0003] Existing pipe grooving assemblies cannot perform grooving from the inside of the pipe, and cutting a groove from the outside of the pipe using grooving tools results in significant wear and tear, low economic efficiency, and limited application scenarios.

[0004] Based on the above reasons, this invention designs a grooving assembly for the inside of a workpiece, which effectively grooves the tube from the inside, while reducing material loss and achieving stable workpiece processing quality and accurate precision requirements. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a grooving assembly for the inside of a workpiece, which effectively grooves the pipe from the inside, while reducing material loss and achieving stable workpiece processing quality and accurate precision requirements.

[0006] To achieve the above objectives, the present invention provides a grooving assembly for the interior of a workpiece, comprising an offset assembly, an electric spindle assembly, a slide table translation assembly, a slide table detection sheet metal, a rigid tube fixing plate, a fixing plate locking nut, and a hydraulic rotary joint. The bottom of the assembly is the slide table translation assembly, and the slide table detection sheet metal is provided on the slide table base on the side of the slide table translation assembly. The electric spindle assembly is mounted on the electric spindle mounting plate at the top of the slide table translation assembly. The offset assembly is mounted on one side of the electric spindle assembly, and the rigid tube fixing plate, which is fixed by the fixing plate locking nut, is provided on the other side of the electric spindle assembly. A hydraulic rotary joint connected to an oil pipe transition piece is provided on the rigid tube fixing plate.

[0007] An oil pipe transition piece is provided on the transition flange on one side of the offset assembly. A spindle chuck is provided on the outside of the transition flange. The inside of the oil pipe transition piece extends into the cylinder body. Guide pillar mounting plates are provided on the upper and lower parts of the cylinder body. A guide pillar extending into the guide pillar mounting plate is provided in the fixed lubrication bearing inside the cylinder body. A piston is provided between the guide pillars and located inside the cylinder body. The upper end of the piston is connected to the mold spring through the cylinder body. A spring adjusting rod is provided on the mold spring. The lower end of the piston is close to the lower guide pillar mounting plate and is connected to the adjusting rod provided in the guide pillar mounting plate. A bearing sleeve is fixedly provided on one side of the guide pillar mounting plate by a nut. A fixed bearing is provided in the bearing sleeve by a locking round nut. A grooving head is connected to the fixed bearing by a grooving head fixing rod.

[0008] The guide post is equipped with a cover plate at both ends.

[0009] A clearance is provided between the adjusting rod and the piston to adjust the concentricity of the grooving head and the electric spindle assembly.

[0010] The gap is 1mm~2mm.

[0011] The upper end of the mold spring is located inside the upper guide post mounting plate, and the lower end of the mold spring is located inside the cylinder and does not contact the piston.

[0012] The side slide base of the slide translation assembly has guide rail fixing seats on both sides with guide rails mounted on it. The guide rails are equipped with sliders for supporting the electric spindle mounting plate. The side slide base is equipped with a servo motor fixing seat between the guide rail fixing seats. The servo motor fixing seat is equipped with a coupling connected to the servo motor. The coupling is connected to a lead screw located at the other end of the side slide base.

[0013] The electric spindle mounting plate is provided with mounting holes for fixing the electric spindle assembly, and the mounting holes are located directly above the lead screw.

[0014] Compared with existing technologies, this invention injects external hydraulic oil into the cylinder to drive the piston to rise. Under the rebound force of the mold spring, the piston moves up and down, causing the grooving head to also shift, thus achieving eccentric grooving within the workpiece. The controllable hydraulic oil injection allows for flexible and sensitive real-time control of the offset, ensuring the accuracy and quality of the grooving process. The bottom slider provides servo control over the grooving depth, further improving the processing scope and quality of the internal grooving. Furthermore, this invention reduces material waste, truly improving work efficiency and reducing labor costs, maximizing economic benefits for the enterprise. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2This is a schematic diagram of the offset component of the present invention. Figure 1 .

[0017] Figure 3 This is a schematic diagram of the offset component of the present invention. Figure 2 .

[0018] Figure 4 This is a schematic diagram of the offset component of the present invention. Figure 3 .

[0019] Figure 5 This is a schematic diagram of the slide translation component of the present invention.

[0020] Figure 6 This is a side view of the overall structure of the present invention.

[0021] Figure 7 This is a cross-sectional view of section AA on the side of the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Offset assembly, 1-1. Grooving head, 1-2. Grooving head fixing rod, 1-3. Fixing bearing, 1-4. Bearing sleeve, 1-5. Locking round nut, 1-6. Guide post mounting plate, 1-7. Adjusting rod, 1-8. Piston, 1-9. Cylinder body, 1-10. Transition flange, 1-11. Spindle chuck, 1-12. Oil pipe transition piece, 1-13. Guide post, 1-14. Cover plate, 1-15. Fixing lubrication bearing, 1-16. Mold spring, 1-17. Spring adjusting rod; 2. Electric spindle assembly; 3. Slide table translation assembly, 3-1. Electric spindle mounting plate, 3-2. Lead screw, 3-3. Guide rail, 3-4. Guide rail fixing seat, 3-5. Slide table base, 3-6. Slider, 3-7. Servo motor fixing seat, 3-8. Servo motor, 3-9. Coupling; 4. Sheet metal for slide inspection; 5. Rigid tube fixing plate; 6. Fixing plate locking nut; 7. Hydraulic rotary joint. Detailed Implementation

[0023] See Figures 1 to 7 The present invention will now be further described with reference to the accompanying drawings. The present invention provides a grooving assembly for use inside a workpiece: The assembly includes an offset component 1, an electric spindle assembly 2, a slide table translation component 3, a slide table detection sheet metal 4, a rigid tube fixing plate 5, a fixing plate locking nut 6, and a hydraulic rotary joint 7. The bottom of the assembly is the slide table translation component 3. The slide table detection sheet metal 4 is installed on the slide table base 3-5 on the side of the slide table translation component 3. The electric spindle assembly 2 is installed on the electric spindle mounting plate 3-1 on the top of the slide table translation component 3. The offset component 1 is installed on one side of the electric spindle assembly 2. The rigid tube fixing plate 5, which is fixed by the fixing plate locking nut 6, is provided on the other side of the electric spindle assembly 2. The hydraulic rotary joint 7, which is connected to the oil pipe transition piece 1-12, is provided on the rigid tube fixing plate 5.

[0024] An oil pipe transition piece 1-12 is provided on the transition flange 1-10 on one side of the offset assembly 1. A spindle chuck 1-11 is provided on the outside of the transition flange 1-10. The inner side of the oil pipe transition piece 1-12 extends into the cylinder body 1-9. Guide post mounting plates 1-6 are provided on the upper and lower parts of the cylinder body 1-9. A guide post 1-13 extending into the guide post mounting plate 1-6 is provided in the fixed lubrication bearing 1-15 inside the cylinder body 1-9. A piston 1-8 is provided between the guide posts 1-13 and located inside the cylinder body 1-9. The upper end of the piston 1-8 is open to... The cylinder body 1-9 is connected to the mold spring 1-16. The mold spring 1-16 is equipped with a spring adjusting rod 1-17. The lower end of the piston 1-8 is close to the guide post mounting plate 1-6 below and is connected to the adjusting rod 1-7 set in the guide post mounting plate 1-6. A bearing sleeve 1-4 is fixedly installed on one side of the guide post mounting plate 1-6 by a nut. A fixed bearing 1-3 is installed in the bearing sleeve 1-4 by a locking round nut 1-5. A grooving head 1-1 is connected to the fixed bearing 1-3 by a grooving head fixing rod 1-2.

[0025] Cover plates 1-14 are respectively provided at both ends of the guide post 1-13.

[0026] A gap of 1mm to 2mm is provided between the adjusting rod 1-7 and the piston 1-8 to adjust the concentricity of the grooving head 1-1 and the electric spindle assembly 2.

[0027] The upper end of the mold spring 1-16 is located inside the upper guide post mounting plate 1-6, and the lower end of the mold spring 1-16 is located inside the cylinder 1-9 and does not contact the piston 1-8.

[0028] The two sides of the side slide base 3-5 on the slide translation assembly 3 are guide rail fixing seats 3-4 on which guide rails 3-3 are mounted. The guide rails 3-3 are provided with sliders 3-6 for supporting the electric spindle mounting plate 3-1. The side slide base 3-5 is provided with a servo motor fixing seat 3-7 between the guide rail fixing seats 3-4. The servo motor fixing seat 3-7 is provided with a coupling 3-9 connected to the servo motor 3-8. The coupling 3-9 is connected to the lead screw 3-2 provided at the other end of the side slide base 3-5.

[0029] The electric spindle mounting plate 3-1 is provided with mounting holes for fixing the electric spindle assembly 2, and the mounting holes are located directly above the lead screw 3-2.

[0030] Working principle explanation: Before the grooving process begins, the servo drive motor 3-8 drives the lead screw 3-2, and the slider 3-6 places the offset component 1, mounted on the electric spindle assembly 2, into the workpiece to be grooved. The slide table 4 confirms that the grooving head 1-1 is in place. When the grooving head (1-1) reaches the designated position inside the workpiece, the electric spindle assembly 2 begins to rotate, driving the offset component 1 to start working. During the grooving process, hydraulic oil enters the cylinder 1-9 through the oil pipe transition piece 1-12. The oil pressure pushes the piston 1-8 up, causing the guide post mounting plate 1-6 to offset through the guide post 1-13. When the guide post mounting plate 1-6 offsets, the mold spring 1-16 on the spring adjusting rod 1-17 will also stretch or retract with the change of the piston 1-8, so that the grooving head 1-1 can rotate eccentrically during the workpiece grooving process, completing the internal grooving process of the workpiece. A gap is left between the adjusting rod 1-7 and the piston 1-8 to allow for concentric adjustment of the grooving head 1-1 during the installation and commissioning of the electric spindle assembly 2.

[0031] The above are merely preferred embodiments of the present invention, intended only to aid in understanding the method and core ideas of this application. The scope of protection of the present invention is not limited to the above embodiments; all technical solutions falling within the scope of the present invention's concept are within its protection. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

[0032] This invention comprehensively solves the problem that existing pipe grooving assemblies cannot perform grooving from the inside of the pipe, and that external grooving results in significant wear and tear, thus affecting economic efficiency and application scenarios. By using a sliding table translation assembly, the grooving head can be directly aligned with the inside of the workpiece for operation without external grooving. Furthermore, by utilizing a servo motor and hydraulically driven piston, it achieves grooving effects of varying depths and eccentricities, offering flexibility, controllability, and high processing quality and precision. This truly improves work efficiency and reduces labor costs, providing economic benefits for enterprise development.

Claims

1. A grooving assembly for use inside a workpiece, characterized in that, The assembly includes an offset component (1), an electric spindle assembly (2), a slide table translation component (3), a slide table detection sheet metal (4), a rigid tube fixing plate (5), a fixing plate locking nut (6), and a hydraulic rotary joint (7). The bottom of the rotary groove assembly is the slide table translation component (3). The slide table detection sheet metal (4) is provided on the side slide table base (3-5) of the slide table translation component (3). The electric spindle assembly (2) is installed on the top electric spindle mounting plate (3-1) of the slide table translation component (3). An offset assembly (1) is installed on one side of the cylinder. An oil pipe transition piece (1-12) is provided on the transition flange (1-10) on one side of the offset assembly (1). A spindle chuck (1-11) is provided on the outer side of the transition flange (1-10). The inner side of the oil pipe transition piece (1-12) extends into the cylinder body (1-9). A guide post mounting plate (1-6) is provided in the cylinder body (1-9). A guide post (1-15) extending into the guide post mounting plate (1-6) is provided in the fixed lubrication bearing (1-15) inside the cylinder body (1-9). -13), a piston (1-8) is disposed between the guide pillars (1-13) and within the cylinder (1-9). The upper end of the piston (1-8) is connected to the mold spring (1-16) through the cylinder (1-9). A spring adjusting rod (1-17) is disposed on the mold spring (1-16). The lower end of the piston (1-8) is close to the guide pillar mounting plate (1-6) below and is connected to the adjusting rod (1-7) disposed within the guide pillar mounting plate (1-6). The guide pillar mounting plate (1-6) A bearing sleeve (1-4) is fixed on one side by a nut. A fixed bearing (1-3) is installed inside the bearing sleeve (1-4) by a locking round nut (1-5). A grooving head (1-1) is connected to the fixed bearing (1-3) by a grooving head fixing rod (1-2). On the other side of the electric spindle assembly (2), a rigid tube fixing plate (5) is fixed by a fixing plate locking nut (6). A hydraulic rotary joint (7) connected to an oil pipe transition piece (1-12) is installed on the rigid tube fixing plate (5). The two sides of the side slide base (3-5) on the slide translation assembly (3) are guide rail fixing seats (3-4) on which guide rails (3-3) are mounted above. The guide rails (3-3) are provided with sliders (3-6) for supporting the electric spindle mounting plate (3-1). The side slide base (3-5) and the guide rail fixing seats (3-4) are provided with servo motor fixing seats (3-7). The servo motor fixing seats (3-7) are provided with couplings (3-9) that connect to servo motors (3-8). The couplings (3-9) are connected to lead screws (3-2) at the other end of the side slide base (3-5).

2. The grooving assembly for the interior of a workpiece according to claim 1, characterized in that, The guide post (1-13) is provided with cover plates (1-14) at both ends.

3. The grooving assembly for the interior of a workpiece according to claim 1, characterized in that, A gap is provided between the adjusting rod (1-7) and the piston (1-8) for adjusting the concentricity of the grooving head (1-1) and the electric spindle assembly (2).

4. The grooving assembly for the interior of a workpiece according to claim 3, characterized in that, The gap is 1mm to 2mm.

5. The grooving assembly for the interior of a workpiece according to claim 4, characterized in that, The upper end of the mold spring (1-16) is located inside the guide post mounting plate (1-6) above, and the lower end of the mold spring (1-16) is located inside the cylinder (1-9) and does not contact the piston (1-8).

6. The grooving assembly for the interior of a workpiece according to claim 1, characterized in that, The electric spindle mounting plate (3-1) is provided with mounting holes for fixing the electric spindle assembly (2), and the mounting holes are located directly above the lead screw (3-2).

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