CN115055707A - Flexible bar turning machine - Google Patents

Abstract

The invention discloses a flexible bar material turning processing machine, comprising a worktable, a turning mechanism and a feeding mechanism, wherein the turning mechanism and the feeding mechanism are fixed on the worktable; the turning mechanism comprises a rotatable turning tool, the turning tool There are 3 evenly distributed blades on it, and the blades facing the shaft center and the side facing the feeding mechanism have cutting edges; the feeding mechanism includes a clamping component and a moving component that drives the clamping component to move; the The clamping assembly includes an openable and closable upper clamp plate and a lower clamp plate. The opposite sides of the upper clamp plate and the lower clamp plate are provided with arc-shaped positioning grooves. After the two arc-shaped positioning grooves are combined, a positioning cavity is formed, and the positioning cavity and the turning tool are located on the same axis. . The invention uses three blades to determine the center position to prevent the eccentricity of the flexible bar; the blades are provided with cutting edges at different positions, which can respectively process the conical surface and the stepped surface on the flexible bar. efficiency.

Description

A flexible bar turning machine

technical field

The invention relates to the technical field of bar material processing equipment, in particular to a flexible bar material turning processing machine.

Background technique

Turning means that lathe machining is part of machining. Lathe machining mainly uses turning tools to turn the rotating workpiece. Lathes are mainly used to process shafts, discs, sleeves and other revolving or non-revolving workpieces with revolving surfaces. They are the most widely used type of machine tool in machinery manufacturing and repair factories. Turning is suitable for machining rotary surfaces. Most workpieces with rotary surfaces can be processed by turning methods, such as inner and outer cylindrical surfaces, inner and outer conical surfaces, end faces, grooves, threads, and rotary forming surfaces.

The existing turning processing objects are mostly metal shafts, discs, sleeves and other parts, that is, hard metal parts. During processing, the metal parts and the turning tool have only one contact position, and the metal parts and the turning tool rotate relative to each other to complete the turning process. . However, this kind of turning processing structure is not suitable for the flexible bar material. When the turning tool collides with the flexible bar material, the force of the turning tool on the flexible bar material will cause the flexible bar material to bend and deform, so that the processed conical surface, The eccentricity of the cylindrical surface and the rotary forming surface will affect the processing quality of the flexible bar. And generally, the metal parts can be directly clamped and fixed by the clamp during processing, but when the flexible bar is clamped by the clamp, the clamp will leave indentations on the flexible bar, which will affect the finished product quality of the flexible bar.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a flexible bar turning machine, which is suitable for processing flexible bars, avoids eccentricity caused by uneven force during turning, and ensures the processing quality of flexible bars.

Therefore, the technical scheme of the present invention is: a flexible bar turning machine, including a worktable, a turning mechanism and a feeding mechanism, the turning mechanism and the feeding mechanism are fixed on the worktable; the turning mechanism includes a rotatable The turning tool is equipped with 3 evenly distributed blades, and the blade facing the axis and the side facing the feeding mechanism have cutting edges; the feeding mechanism includes a clamping component and drives the clamping component to move The moving assembly; the clamping assembly includes an openable and closable upper splint and a lower splint, the opposite sides of the upper splint and the lower splint are provided with arc-shaped positioning grooves, and the two arc-shaped positioning grooves are assembled to form a positioning cavity, and the positioning cavity and The turning tools are on the same axis.

When the present invention is used, the flexible bar material is placed in the arc-shaped positioning groove of the lower clamp plate, and then the upper clamp plate is moved down and assembled with the lower clamp plate, so that the flexible bar material is fixed in the positioning cavity, and the flexible rod material is clamped by the positioning cavity, In addition, the contact area between the positioning cavity and the flexible bar is large, and it is not easy to leave indentations on the surface of the flexible bar when clamping; there are three evenly distributed blades on the turning tool, and the flexible bar is in the center of the three blades during processing. , the force is uniform, and the eccentricity and bending of the flexible bar are prevented; the existing blade generally has only one cutting edge, and when processing the bar, only a single structure can be processed, and different structures need to be processed in steps. The two cutting edges at the position can process different structures on the flexible bar, and process it at one time to improve the processing efficiency.

Preferably, the feeding mechanism further includes a feeding base and a feeding support, the feeding base is installed on the moving assembly, and the feeding support is fixed on the feeding base; the lower splint is fixed on the feeding base, and the feeding base is fixed on the feeding base. A first air cylinder is installed on the bracket, and an upper clamp plate is installed on the first air cylinder; the upper clamp plate is located just above the lower clamp plate, and the first air cylinder drives the upper clamp plate to rise and fall. In order to ensure the clamping effect, two side-by-side first cylinders can be set on the feeding bracket, and the cylinder rod of the first cylinder is fixedly connected to the upper clamping plate. When the flexible bar is placed in the arc-shaped positioning groove of the lower clamping plate, and the flexible rod After adjusting the position of the material, the two first cylinders are ventilated at the same time, and the upper clamping plate is driven to press down on the flexible bar material. The contact surface of the two is a cylindrical surface, and no indentation will be left after clamping.

Preferably, the moving assembly includes a translation motor, a screw rod and a slide rail, the translation motor and the slide rail are fixed on the worktable, and a slider matched with the slide rail is provided under the feeding base; the translation motor and the screw rod Connected, a moving block matched with the screw rod is arranged under the feeding base, and the translation motor drives the feeding base to move along the slide rail through the screw rod. The translation motor is a servo motor, which can precisely control the flexible bar material to approach the turning tool for cutting work and ensure the overall machining accuracy.

Preferably, the turning tool is composed of a cutter head and three blades, and the cutter head is fixedly connected to the rotary motor; the cutter head is provided with three installation grooves, and the included angle between the installation grooves is 120 degrees, and the blades are fixed on the cutter head. The blade is a strip-shaped structure, the side of the blade close to the axis is an inclined structure, forming a first cutting edge, and the end of the blade close to the positioning cavity is an inclined structure, forming a second cutting edge. The first cutting edge of the blade is used to process the outer conical surface at the end of the flexible bar material, and the second cutting edge of the blade is used to process the annular stepped surface at the intersection of the outer conical surface and the flexible bar material body, which is processed and formed at one time.

Preferably, a liftable baffle is arranged between the turning mechanism and the feeding mechanism, the baffle is installed on the second cylinder, and the baffle can be located between the positioning cavity and the turning tool. Before processing, the baffle is located between the positioning cavity and the turning tool, and the flexible bar is placed on the lower clamping plate, and the flexible bar is moved so that its front end is in contact with the baffle, and the upper clamping plate is moved down, and the flexible bar is fixed in cooperation with the lower clamping plate. Then the second cylinder drives the baffle to move down, and the clamping component drives the flexible bar close to the turning tool under the drive of the translation motor, and then the turning tool rotates under the drive of the rotating motor, and the end of the flexible bar Insert the three inserts and start turning.

Preferably, the outer cover of the turning tool is provided with a dust hood, the side of the dust hood is provided with an air suction port, and the air suction port is connected to the air suction equipment; relatively. The through hole on the suction hood is convenient for the insertion of the flexible bar material. When the turning tool is processing the flexible bar material, the suction equipment is activated, and the waste chips generated by the processing are adsorbed through the suction port to avoid the waste chips flying.

Compared with the prior art, the beneficial effects of the present invention are:

1) There are three evenly distributed blades on the turning tool, and the three blades are used to determine the center position. The flexible bar is uniformly stressed during processing to prevent the eccentricity of the flexible bar;

2) The blade of the turning tool is provided with cutting edges at different positions, which can respectively process the conical surface and the stepped surface on the flexible bar material, which can be processed and formed at one time to improve the processing efficiency;

3) The arc-shaped positioning grooves on the upper splint and the lower splint can be assembled to form a cylindrical positioning cavity. The positioning cavity is used to clamp the flexible bar material. The contact area between the positioning cavity and the flexible bar material is large, and it is not easy to clamp the flexible rod Indentation is left on the surface of the material;

4) A liftable baffle is set between the turning tool and the flexible bar, and the baffle is used to determine the initial position of the flexible bar to ensure that the initial positions of all flexible bars are consistent and the processing quality remains stable;

5) Use the servo motor to control the movement of the flexible bar, precisely control the contact distance between the flexible bar and the turning tool, and ensure the processing accuracy of the flexible bar;

6) Use the suction hood to absorb the waste chips generated by turning, avoid the waste chips flying, and keep the working environment clean and tidy.

Description of drawings

Further detailed description will be given below in conjunction with the accompanying drawings and the embodiments of the present invention

Fig. 1 is the structural representation of the present invention;

Fig. 2 is a partial enlarged view of Fig. 1;

Fig. 3, Fig. 4 are the structural representations of the feeding mechanism of the present invention;

Fig. 5, Fig. 6 are the structural representations of turning tool of the present invention;

FIG. 7 is a schematic structural diagram of the flexible bar material of the present invention.

Marked in the figure: worktable 1, rotary motor 21, turning tool 22, cutter head 23, blade 24, installation groove 25, first cutting edge 26, second cutting edge 27, clamping assembly 3, feeding base 31, Loading bracket 32, upper splint 33, lower splint 34, first cylinder 35, first arc-shaped positioning slot 36, second arc-shaped positioning slot 37, moving assembly 4, translation motor 41, screw 42, slide rail 43, The slider 44 , the baffle 51 , the second cylinder 52 , the dust hood 6 , the air suction port 61 , the through hole 62 , the flexible bar 7 , the conical surface 71 , and the annular stepped surface 72 .

Detailed ways

In the description of the present invention, it should be noted that for orientation words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", " Width, Thickness, Top, Bottom, Front, Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inside ", "outside", "clockwise", "counterclockwise" and other indications of orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or indicating the number of technical features. Therefore, defining the "first" and "second" features may expressly or implicitly include one or more of the features, and in the description of the present invention, "several" and "several" mean two or two above, unless otherwise expressly specifically defined.

See attached image. The flexible bar turning machine in this embodiment includes a worktable 1 , a turning mechanism and a feeding mechanism, and the turning mechanism and the feeding mechanism are fixed on the worktable 1 .

The turning mechanism includes a rotary motor 21 and a turning tool 22. The turning tool 22 is composed of a cutter head 23 and three blades 24. The cutter head 23 is fixedly connected to the rotary motor 21, and the rotary motor 21 drives the turning tool 22 to rotate; The disc 23 is provided with 3 installation grooves 25, the angle between the installation grooves is 120 degrees, and the blade 24 is fixed in the installation groove of the cutter disc 23; the blade 24 is a strip structure, and the side of the blade 24 close to the axis is The inclined structure forms the first cutting edge 26 , and the end of the blade close to the positioning cavity has the inclined structure to form the second cutting edge 27 . The first cutting edge 26 of the blade is used to process the outer conical surface at the end of the flexible bar 7, and the second cutting edge 27 of the blade is used to process the annular step surface at the intersection of the outer conical surface and the flexible bar body, and it is formed by one-time processing. .

The feeding mechanism includes a clamping assembly 3 and a moving assembly 4. The clamping assembly 3 includes a feeding base 31, a feeding bracket 32, an upper clamping plate 33 and a lower clamping plate 34. The feeding base 31 is installed on the moving assembly 4, and the upper The feeding support 32 is fixed on the feeding base 31; the lower splint 34 is fixed on the feeding base 31, and two first cylinders 35 arranged side by side are installed on the feeding support 32, and the first cylinders 35 are arranged vertically. The upper splint 33 is installed on the cylinder rod of the first cylinder 35; the upper splint 33 is located just above the lower splint 34, and the first cylinder 35 can drive the upper splint 33 to move up and down; the upper splint 34 is provided with a first arc The lower side of the upper clamp plate 33 is provided with a second arc-shaped positioning groove 37. When the upper clamp plate moves down, the first arc-shaped positioning groove 36 and the second arc-shaped positioning groove 37 are assembled to form a positioning cavity. As a long cylindrical structure, the flexible bar 7 is clamped in the positioning cavity, and the contact surface between the two is a cylindrical surface, and no indentation will be left after clamping.

The moving assembly 4 includes a translation motor 41, a screw rod 42 and a slide rail 43, the translation motor 41 and the slide rail 43 are fixed on the worktable 1, and a slider 44 matched with the slide rail 43 is provided under the feeding base 31; The translation motor 41 is connected with the screw rod 42, and the translation motor 41 can drive the screw rod 42 to rotate. A moving block matched with the screw rod 42 is arranged under the feeding base 31. The moving block is provided with a threaded hole, which is threaded with the screw rod. Cooperate. The translation motor 41 is a servo motor, which can precisely control the rotation of the lead screw 42. When the lead screw rotates, the moving block drives the feeding base 31 to move along the slide rail 43, and feeds the flexible bar 7 on the fixed feeding base 31 into the turning tool 22 Inside, the cutting work is carried out, and the servo motor can ensure the machining accuracy.

A liftable baffle 51 is arranged between the turning mechanism and the feeding mechanism. The baffle 51 is installed on the second cylinder 52, which is installed on the worktable 1. The second cylinder 52 drives the baffle 51 up and down. Moving, the baffle 51 can move up to the position between the positioning cavity and the turning tool 22 . Before processing, the baffle 51 is located between the positioning cavity and the turning tool, the flexible bar 7 is placed on the lower clamping plate 34, and the flexible bar 7 is moved so that its front end is in contact with the baffle 51, and the upper clamping plate 33 is moved down to meet the The lower clamping plate 34 cooperates to fix the flexible bar material to determine the initial position; then the second air cylinder 52 drives the baffle plate 51 to move down, and the clamping assembly is driven by the translation motor to drive the flexible bar material 7 to approach the turning tool 22, and then the turning tool 22 is in Driven by the rotating motor 21 to rotate, the end of the flexible bar 7 is inserted into the middle of the three blades 24 to start turning.

The outer side of the turning tool 22 is covered with a dust hood 6, and the side of the dust hood 6 is provided with an air suction port 61, and the air suction port is connected to a suction device (not shown in the figure); The through hole 62 is positioned opposite to the positioning cavity. The through hole 62 on the suction hood 6 is convenient for the insertion of the flexible bar 7. When the turning tool processes the flexible bar 7, the suction device is activated, and the waste chips generated by the processing are adsorbed cleanly through the suction port to prevent the waste chips from flying.

when using it:

1) In the initial state, the upper splint 33 and the lower splint 34 are separated, the upper splint 33 is located above, the baffle 51 is at the highest position, and is blocked between the turning tool 22 and the lower splint 34;

2) Place the flexible bar 7 in the first 36 arc-shaped positioning groove of the lower clamping plate 34, and at the same time abut the end of the flexible bar 7 with the baffle 51 to determine the initial position of the flexible bar;

3) The first air cylinder 35 starts to work, and drives the upper clamping plate 33 to move down, so that the upper clamping plate 33 is pressed down on the flexible bar 7, and cooperates with the lower clamping plate 34 to fix the flexible bar 7; at the same time, the second air cylinder 52 works to drive the block The plate 51 moves down and does not block between the flexible bar and the turning tool;

4) The translation motor 41 and the rotary motor 21 start to work, the rotary motor 21 drives the turning tool 22 to start to rotate, the translation motor 41 drives the feeding base 31 to move towards the turning tool 22 side, and the flexible bar 7 is fed into the third part of the turning tool at a constant speed. In the middle of the two blades 24, the first cutting edge 26 processes a conical surface 71 at the end of the flexible bar 7, the second cutting edge 27 processes an annular stepped surface 72 at the end of the flexible bar 7, and the annular stepped surface is located between the conical surface and the flexible bar 7. The junction of the circumferential surface of the bar;

5) At the same time as the turning tool is processed, the air suction equipment is activated, the air suction port is in a negative pressure state, and the waste chips in the suction hood 6 are adsorbed by the air suction equipment from the air suction port to prevent the waste chips from flying;

6) After the processing is completed, the rotary motor 21 stops working, the translation motor 41 drives the screw rod 42 to move in the reverse direction, and drives the processed flexible bar 7 back to the initial position, and then the first air cylinder 35 drives the upper splint 33 to move up, the flexible bar The material 7 is released from the fixed state, which is convenient for the user to pick and place the flexible bar material 7;

7) The second air cylinder 52 drives the baffle plate 51 to move up, returns to the initial state, repeats the above steps, and continues to process other flexible bars until the processing is completed.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides a flexible bar turning machine which characterized in that: the automatic turning device comprises a workbench, a turning mechanism and a feeding mechanism, wherein the turning mechanism and the feeding mechanism are fixed on the workbench; the turning mechanism comprises a rotatable turning tool, the turning tool is provided with 3 uniformly distributed blades, and the side of each blade facing the axis and the side of each blade facing the feeding mechanism are provided with cutting edges; the feeding mechanism comprises a clamping assembly and a moving assembly for driving the clamping assembly to move; the clamping assembly comprises an upper clamping plate and a lower clamping plate which can be opened and closed, the opposite sides of the upper clamping plate and the lower clamping plate are respectively provided with an arc-shaped positioning groove, a positioning cavity is formed after the two arc-shaped positioning grooves are spliced, and the positioning cavity and the turning tool are located on the same axis.

2. A flexible bar turning machine as claimed in claim 1 wherein: the feeding mechanism further comprises a feeding base and a feeding support, the feeding base is mounted on the moving assembly, and the feeding support is fixed on the feeding base; the lower clamping plate is fixed on the feeding base, the feeding support is provided with a first cylinder, and the upper clamping plate is arranged on the first cylinder; the upper clamping plate is positioned right above the lower clamping plate, and the first cylinder drives the upper clamping plate to lift.

3. A flexible bar turning machine as claimed in claim 2 wherein: the moving assembly comprises a translation motor, a screw rod and a slide rail, the translation motor and the slide rail are fixed on the workbench, and a slide block matched with the slide rail is arranged below the feeding base; the translation motor is connected with the lead screw, a moving block matched with the lead screw is arranged below the feeding base, and the translation motor drives the feeding base to move along the sliding rail through the lead screw.

4. A flexible bar turning machine as claimed in claim 1 wherein: the turning tool consists of a cutter head and three blades, and the cutter head is fixedly connected with a rotating motor; 3 mounting grooves are formed in the cutter head, the included angle between the mounting grooves is 120 degrees, and the blades are fixed in the mounting grooves of the cutter head; the blade is of a strip-shaped structure, the side face, close to the axis, of the blade is of an inclined structure to form a first cutting edge, and the end, close to the positioning cavity, of the blade is of an inclined structure to form a second cutting edge.

5. A flexible bar turning machine as claimed in claim 1 wherein: a liftable baffle is arranged between the turning mechanism and the feeding mechanism, the baffle is arranged on the second cylinder, and the baffle can be located between the positioning cavity and the turning tool.

6. A flexible bar turning machine as claimed in claim 1 wherein: the outer side of the turning tool is covered with a dust hood, the side surface of the dust hood is provided with an air suction opening, and the air suction opening is connected with air suction equipment; the air suction cover is provided with a through hole towards the feeding mechanism, and the through hole is opposite to the positioning cavity.

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