Hobbing mechanism for hobbing machine

Abstract

The hobbing mechanism comprises a bottom plate and a hobbing frame, the hobbing frame is installed in the middle of the top face of the bottom plate, a middle hole is formed in the middle of the other end of a sleeve, an electric telescopic rod is fixedly installed in the middle hole, a base disc is fixedly installed at the tail end of the electric telescopic rod, a supporting rod is rotatably installed on the side face of the base disc, and a rotary shaft is installed on the supporting rod. The tail end of the supporting rod is rotationally connected with the positioning rod, a rail window is formed in the other end of the bottom plate, a locking bolt is installed in the rail window in a penetrating mode, a locking nut is installed at the bottom end of the locking bolt, the top end of the locking nut is fixedly connected with the bottom face of the movable plate, and a positioning block is rotationally installed on one side of the movable plate. According to the hobbing mechanism for the hobbing machine, the novel structural design is adopted, pipes with different diameters can be stably positioned from the two sides, it is guaranteed that the pipes can be centered and stably aligned with the center of the hobbing frame, it is guaranteed that hobbing is conducted smoothly, and meanwhile the cutting mechanism can be prevented from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rolling cutting machine technical field, concretely to a rolling cutting mechanism for rolling cutting machine. BACKGROUND

[0002] The rolling cutting machine is generally used for cutting pipe material, and the pipe material is positioned through the two-end positioning mechanism, and the pipe material is rotated through the rotating mechanism connected with the positioning mechanism, and the cutting mechanism arranged around the outer side of the pipe material is matched to realize efficient rolling cutting of the pipe material.

[0003] The existing rolling cutting mechanism for the rolling cutting machine, such as the Chinese utility model patent with the title of a rolling cutting mechanism for rolling cutting machine and the publication number of CN219852371U, comprises a bottom plate and a fixing frame, the bottom plate is installed on external equipment, the fixing frame is installed on the bottom plate, the bottom plate is provided with a cutting mechanism and an adjusting mechanism, the cutting mechanism comprises an intermediate block, a clamping frame, a limiting block, a limiting bolt, a central shaft, a bearing, a cutting knife and a connecting mechanism, the intermediate block is rotatably connected to the fixing frame and the clamping frame respectively, and a limiting groove is formed in the clamping frame; in the utility model, the cutting mechanism is designed, the corresponding pipe material is installed in the driving sleeve during cutting, the pipe material is fixed through rotating a plurality of fixing bolts, and the other end is fixed on the top block; since the intermediate block is rotatably connected to the clamping frame and the fixing frame, the clamping frame can be conveniently opened and closed and locked, and the cutting of the pipe material is facilitated. However, the two-end positioning mechanism is not reasonably designed, the pipe material inserted into the driving sleeve is only fixed through extrusion of the fixing bolts, the extrusion stroke of the plurality of fixing bolts cannot be unified, that is, the pipe material cannot be centrally fixed, the top block at the other end does not have the function of centrally locking the pipe material, the center of the pipe material cannot coincide with the center of the motor output shaft, the pipe material rotates eccentrically, which not only affects cutting, but also causes damage to the cutting knife. In view of the above problems, it is urgent to make innovative design on the basis of the original rolling cutting mechanism for the rolling cutting machine. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a rolling cutting mechanism for rolling cutting machine, so as to solve the problem that the two-end positioning mechanism of the existing device is not reasonably designed, the pipe material is extruded by manually rotating the fixing bolt, the pipe material cannot be centrally fixed, the center of the pipe material cannot coincide with the center of the motor output shaft, the pipe material rotates eccentrically, which not only affects cutting, but also causes damage to the cutting knife.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: A kind of rolling cutting mechanism for rolling cutting machine, including bottom plate and rolling cutting frame, the middle part of bottom plate top surface is equipped with rolling cutting frame, one end of bottom plate top surface is fixed with mounting plate, the top of mounting plate is equipped with servo motor, horizontal shaft is installed on servo motor, the end of horizontal shaft is fixedly installed with sleeve pipe, one end outer wall of sleeve pipe is rotatably equipped with positioning rod, middle part of other end of sleeve pipe is equipped with middle hole, electric telescopic rod is fixedly installed in middle hole, the end of electric telescopic rod is fixedly installed with base disc, the side of base disc is rotatably equipped with support rod, the end of support rod is rotatably connected with positioning rod, the other end of bottom plate is equipped with track window, locking bolt is installed in track window, locking nut is installed at the bottom end of locking bolt, the top end of locking nut is fixedly connected with the bottom surface of movable plate, positioning block is rotatably equipped on one side of movable plate.

[0006] Preferably, the positioning rods are distributed at equal angles about the center of the sleeve pipe, and the length of the positioning rods is greater than the length of the sleeve pipe.

[0007] Preferably, the end of the positioning rod is fixedly installed with an anti-skid sleeve, and the diameter of the anti-skid sleeve is greater than the length and width of the side view cross section of the positioning rod.

[0008] Preferably, the length of the electric telescopic rod is greater than the length of the support rod, and the length of the support rod is greater than 1 / 4 of the length of the positioning rod.

[0009] Preferably, the support rods are distributed at equal angles about the center of the base disc, and the center of the support rod and the center of the positioning rod are located on the same plane passing through the center of the base disc.

[0010] Preferably, the locking bolt and the track window are in sliding connection, and the locking bolt and the track window are symmetrically distributed about the center of the movable plate.

[0011] Preferably, the centers of the positioning block, the base disc, the sleeve pipe and the rolling cutting frame are located on the same horizontal straight line, and the diameter of the side end face of the rolling cutting frame close to the positioning block is greater than the outer diameter of the sleeve pipe.

[0012] Preferably, the positioning block is in the shape of a circular truncated cone, and the curved surface of the positioning block is in a matte finish.

[0013] Compared with the prior art, the rolling cutting mechanism for rolling cutting machine has the advantages that: the novel structure design can not only stably position pipe materials of different diameters from both sides, but also ensure that the pipe materials can be centrally positioned and stably aligned with the center of the rolling cutting frame, so that the rolling cutting can be smoothly performed, and the cutting mechanism can be prevented from being damaged.

[0014] 1. The base plate is driven to move linearly by the electric telescopic rod, the support rod is driven to rotate during the horizontal movement of the base plate, the positioning rod is driven to rotate and open by the rotation of the support rod, the inner wall of the pipe is squeezed from the inside, and the opening angle of the positioning rod is ensured to be the same, the pipe is stably and centrally positioned by cooperating with the circular table-shaped positioning block, and the pipe is centrally aligned with the rolling cutting frame.

[0015] 2. The movable plate with the locking bolt is horizontally slid along the track window, the pipe of different lengths is stably and horizontally positioned by cooperating with the sleeve and the positioning rod, the stability of the pipe during the cutting process is ensured, and the applicability of the device as a whole is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a sleeve front view sectional structure schematic diagram of the utility model;

[0018] Figure 3 It is a positioning rod, base plate and support rod side view structural schematic diagram of the utility model;

[0019] Figure 4 It is a track window front view sectional structure schematic diagram of the utility model;

[0020] Figure 5 It is a track window side view sectional structure schematic diagram of the utility model.

[0021] In the drawing: 1, bottom plate; 2, rolling cutting frame; 3, mounting plate; 4, servo motor; 5, horizontal shaft; 6, sleeve; 7, positioning rod; 8, anti-skid sleeve; 9, middle hole; 10, electric telescopic rod; 11, base plate; 12, support rod; 13, track window; 14, locking bolt; 15, locking nut; 16, movable plate; 17, positioning block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-5The utility model provides a technical scheme: a kind of hobbing mechanism for hobbing machine, including bottom plate 1, hobbing frame 2, mounting plate 3, servo motor 4, horizontal shaft 5, sleeve 6, positioning rod 7, antiskid sleeve 8, middle hole 9, electric telescopic rod 10, base disc 11, bracing piece 12, track window 13, locking bolt 14, locking nut 15, movable plate 16 and positioning block 17, bottom plate 1 top middle part is equipped with hobbing frame 2, one end of bottom plate 1 top surface is fixed with mounting plate 3, and servo motor 4 is installed on the top of mounting plate 3, and horizontal shaft 5 is installed on servo motor 4, and sleeve 6 is fixedly installed at the end of horizontal shaft 5, and positioning rod 7 is rotatably installed on the outer wall of one end of sleeve 6, and middle hole 9 is formed in the middle of other end of sleeve 6, and electric telescopic rod 10 is fixedly installed in middle hole 9, and base disc 11 is fixedly installed at the end of electric telescopic rod 10, and bracing piece 12 is rotatably installed on the side surface of base disc 11, and bracing piece 12 end is rotatably connected with positioning rod 7, and track window 13 is formed in the other end of bottom plate 1, and locking bolt 14 is rotatably installed in track window 13, and locking nut 15 is installed at the bottom end of locking bolt 14, and locking nut 15 top end is fixedly connected with the bottom surface of movable plate 16, and positioning block 17 is rotatably installed on one side of movable plate 16.

[0024] The positioning rod 7 of the example is equally angularly distributed about the center of the sleeve 6, and the length of the positioning rod 7 is greater than the length of the sleeve 6. The above structure design allows the positioning rod 7 to be opened at a larger distance by rotating the end of the positioning rod 7 by a small angle, and multiple positioning rods 7 cooperate to stably position the pipe from the inside.

[0025] The antiskid sleeve 8 is fixedly installed at the end of the positioning rod 7, and the diameter of the antiskid sleeve 8 is greater than the length and width of the side view cross section of the positioning rod 7. The above structure design can ensure that the end of the positioning rod 7 stably contacts the inner wall of the pipe, avoiding loosening of the pipe.

[0026] The length of the electric telescopic rod 10 is greater than the length of the bracing piece 12, and the length of the bracing piece 12 is greater than 1 / 4 of the length of the positioning rod 7. The above structure design allows the electric telescopic rod 10 to be extended by a sufficient distance to push the base disc 11 to drive the bracing piece 12 to rotate and drive the positioning rod 7 to stably rotate and open.

[0027] The bracing pieces 12 are equally angularly distributed about the center of the base disc 11, and the center of the bracing piece 12 and the center of the positioning rod 7 are on the same plane passing through the center of the base disc 11. The above structure design allows the bracing piece 12 to stably push the positioning rod 7 and cooperate with the positioning rod 7 to stably open.

[0028] The locking bolt 14 and the track window 13 are in sliding connection, and the locking bolt 14 and the track window 13 are symmetrically distributed about the center of the movable plate 16. The above structure design allows the movable plate 16 to stably horizontally displace along the track window 13 with the locking bolt 14.

[0029] The centers of the positioning block 17, the base plate 11, the sleeve 6 and the rolling cutting frame 2 are on the same horizontal straight line. The diameter of the side end surface of the positioning block 17 close to the rolling cutting frame 2 is larger than the outer diameter of the sleeve 6. The above structural design ensures that the pipe can be centered and stably rolled by the cutting tool installed on the rolling cutting frame 2.

[0030] The positioning block 17 is set to be a truncated cone, and the curved surface of the positioning block 17 is set to be matte. The above structural design enables the positioning block 17 to be inserted into the ends of different pipes and stably fit with the ends of the pipes. The static friction at the fitting point is sufficient to ensure that the positioning block 17 can rotate together with the pipe.

[0031] Working principle: The structure of the rolling cutting frame 2 in this device is the same as the cutting mechanism composed of the fixed frame, the clamping frame and the cutting knife in the rolling cutting mechanism of a rolling cutting machine with publication number CN219852371U. It is a mature technology and will not be described in detail here.

[0032] When using this device, first open the rolling cutting frame 2, close and fix the pipe to be cut, then adjust the pipe to the level, align the center with the base plate 11, move the pipe to the left, and Figure 2 The middle positioning rod 7 is equipped with an anti-slip sleeve 8, which is inserted into the inner side of the left end of the pipe to a suitable distance. The electric telescopic rod 10 is controlled to extend, and the electric telescopic rod 10 pushes the base plate 11 to move right. The base plate 11 pushes the support rod 12 to rotate, and the support rod 12 pushes the positioning rod 7 to rotate and open. The anti-slip sleeve 8 at the end of the positioning rod 7 is tightly fitted with the inner wall of the pipe. The electric telescopic rod 10 is controlled to remain stationary, and the base plate 11 and the support rod 12 stably support the positioning rod 7 to open and squeeze one end of the pipe to the center;

[0033] Then push the movable plate 16 along with the locking bolt 14 Figure 4 The track window 13 slides to the left until the end of the positioning block 17 is inserted into the other end of the pipe, and the curved surface of the positioning block 17 is tightly fitted with the edge of the inner wall of the other end of the pipe, stably squeezing the other end of the pipe. The locking nut 15 is rotated to squeeze the bottom plate 1, and the positions of the movable plate 16 and the positioning block 17 are fixed. The cutting knife installed on the rolling cutting frame 2 can be adjusted to fit the outer wall of the pipe according to the existing technology. The servo motor 4 is started to drive the sleeve 6 and the positioning rod 7 to rotate through the horizontal axis 5. The positioning rod 7 drives the pipe to rotate. The pipe uses static friction to drive the positioning block 17 to rotate, achieving stable centered rotation. The cutting knife installed on the rolling cutting frame 2 performs stable rolling cutting on the pipe. This is the working principle of the rolling cutting mechanism of the rolling cutting machine.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hobbing mechanism for a hobbing machine, comprising a base plate (1) and a hobbing frame (2), characterized in that: The bottom plate (1) top surface middle installation has the roll cutting frame (2), one end of the bottom plate (1) top surface is fixed with the mounting plate (3), the mounting plate (3) top installation has the servo motor (4), the servo motor (4) installation has the horizontal shaft (5), the horizontal shaft (5) end fixed installation has the sleeve pipe (6), the sleeve pipe (6) one end outer wall rotation installation has the positioning rod (7), the sleeve pipe (6) other end middle part is provided with the middle hole (9), the middle hole (9) is fixedly installed with the electric telescopic rod (10), the electric telescopic rod (10) end fixed installation has the base disc (11), the base disc (11) side rotation installation has the support rod (12), the support rod (12) end and positioning rod (7) rotation connection, the bottom plate (1) other end is provided with the track window (13), the track window (13) is installed with the locking bolt (14), the locking bolt (14) bottom end installation has the locking nut (15), the locking nut (15) top end and movable plate (16) bottom surface connection fixed, the movable plate (16) one side rotation installation has the positioning block (17).

2. A hobbing mechanism for a hobbing machine according to claim 1, characterized in that: The positioning rod (7) is equally angularly distributed about the center of the sleeve pipe (6), and the length of the positioning rod (7) is greater than the length of the sleeve pipe (6).

3. The hobbing mechanism for a hobbing machine according to claim 1, characterized in that: The end of the positioning rod (7) is fixedly installed with an anti-skid sleeve (8), and the diameter of the anti-skid sleeve (8) is greater than the length and width of the side view cross section of the positioning rod (7).

4. The hobbing mechanism for a hobbing machine according to claim 1, characterized in that: The length of the electric telescopic rod (10) is greater than the length of the support rod (12), and the length of the support rod (12) is greater than 1 / 4 of the length of the positioning rod (7).

5. The hobbing mechanism for a hobbing machine according to claim 1, characterized in that: The support rod (12) is equally angularly distributed about the center of the base disc (11), and the center of the support rod (12) and the center of the positioning rod (7) are on the same plane passing through the center of the base disc (11).

6. The hobbing mechanism for a hobbing machine according to claim 1, characterized in that: The locking bolt (14) and the track window (13) are in sliding connection, and the locking bolt (14) and the track window (13) are symmetrically distributed about the center of the movable plate (16).

7. The hobbing mechanism for a hobbing machine according to claim 1, wherein: The centers of the positioning block (17), the base disc (11), the sleeve pipe (6) and the roll cutting frame (2) are on the same horizontal straight line, and the diameter of the positioning block (17) close to the side end face of the roll cutting frame (2) is greater than the outer diameter of the sleeve pipe (6).

8. The hobbing mechanism for a hobbing machine according to claim 1, characterized in that: The positioning block (17) is in the shape of a circular truncated cone, and the curved surface of the positioning block (17) is in a matte finish.

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