CN217618006U

CN217618006U - Linear power head

Info

Publication number: CN217618006U
Application number: CN202221635940.4U
Authority: CN
Inventors: 张学武; 何毅锋
Original assignee: Foshan Xuchuan Technology Co ltd
Current assignee: Foshan Xuchuan Technology Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-10-21
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a straight line unit head, including base and the slide that is used for installing the cutter, slide direction slidable mounting is in the base top, still including the bent axle, and the bent axle includes reference section and eccentric section, the reference section of bent axle with base normal running fit, the slide corresponds eccentric section and is equipped with spacing chamber, spacing intracavity wall and the virtual cooperation of position of eccentric section outer wall, the rotation drive slide reciprocating motion of bent axle. In addition, the crankshaft can drive the crankshaft to axially move through the clutch control mechanism, so that the reference section of the crankshaft and the power of the processing equipment have a clutch relation or a high-low speed clutch switching relation, and the long-term work or the long-term high-speed work of the sliding seat is avoided. The utility model discloses a bent axle does not need just reversing to switch, only needs to rotate towards any one direction, can realize high-efficient reciprocating motion, reduces the requirement to motor performance or power input.

Description

Linear power head

Technical Field

The utility model relates to a slotting process technical field especially relates to a sharp unit head.

Background

Slotting machining is a conventional machining mode in machining, and slotting machining refers to a machining mode which mainly utilizes a slotting tool to make reciprocating linear motion relative to a workpiece and assists the workpiece in making feed motion. In the design of a traditional machine tool, a transmission mode that a motor drives a lead screw is usually adopted, and forward and reverse rotation of the lead screw is driven through forward and reverse rotation of the motor, so that a corresponding nut or a corresponding slide block on the lead screw can realize reciprocating linear motion. Slotting machining is reciprocating cutting motion with large high-frequency impact, and has the defects of serious local abrasion to a lead screw and a nut or a sliding block on the lead screw, low service life of a transmission component, high requirement on the performance of a motor and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rational in infrastructure, high-efficient reciprocating motion's a sharp unit head.

The purpose of the utility model is realized like this:

the utility model provides a straight line unit head, includes the base and is used for installing the slide of cutter, and slide direction slidable mounting is in the base top, still including the bent axle, and the bent axle includes reference section and eccentric section, the bent axle the reference section with base normal running fit, the slide corresponds eccentric section and is equipped with spacing chamber, and spacing intracavity wall cooperates with the virtual position of eccentric section outer wall, the rotation drive slide reciprocating motion of bent axle.

The purpose of the utility model can also adopt the following technical measures to solve:

as a more specific scheme, the sliding seat is in linear sliding fit with the base, the limiting cavity is a long-strip-shaped hole, the outer wall of the eccentric section is abutted to or in clearance fit with the inner wall of the limiting cavity in the short axis direction, and the outer wall of the eccentric section and the inner wall of the limiting cavity in the long axis direction form a virtual position.

As a further scheme, a second bearing is arranged at the position, corresponding to the limiting cavity, of the eccentric section, a locking nut used for limiting axial displacement of the second bearing is arranged at the outer end of the eccentric section, the outer wall of the second bearing is abutted to or in clearance fit with the inner wall of the limiting cavity in the short shaft direction, and the outer wall of the second bearing and the inner wall of the limiting cavity in the long shaft direction form a virtual position.

As a further scheme, the base is provided with shaft holes penetrating through the upper side and the lower side of the base corresponding to the reference section, the reference section extends into the shaft holes, the reference section is sleeved with a gland, and the gland is in compression joint with the upper end face of the base.

As a further scheme, the base is provided with an installation sinking platform corresponding to the gland, and the gland is fixed on the installation sinking platform through a fastener; the crankshaft further comprises a crank arm connected with the eccentric section and the reference section, a positioning boss is arranged on the periphery of the lower end face of the crank arm, a positioning groove is formed in the upper end face of the press cover corresponding to the positioning boss, and the positioning boss is abutted to the positioning groove.

As a further scheme, the sliding seat is connected with the base through a sliding assembly, the sliding assembly comprises a linear guide rail fixed on the upper end surface of the base and a sliding block fixed on the lower end surface of the sliding seat, and the sliding block is in linear sliding fit with the linear guide rail.

As a further scheme, the crankshaft is arranged in the middle of the base, the sliding assemblies are arranged on the top surface of the base, corresponding to the left side and the right side of the crankshaft, the left end and the right end of the sliding seat are placed on the sliding assemblies, and the limiting cavity is located in the middle of the sliding seat.

As a further scheme, the upper end of the sliding seat is connected with a cutter holder, and the upper end of the cutter holder is provided with a cutter mounting groove and a cutter pressing block for pressing a cutter.

As a further scheme, a limiting boss is arranged on the lower end face of the cutter holder, a limiting groove is formed in the upper end face of the sliding seat corresponding to the limiting boss, and the limiting boss of the cutter holder is inserted into the limiting groove of the sliding seat and fixed through a fastening piece.

As a further scheme, the tool mounting device further comprises a housing for covering the base and the sliding seat, wherein the bottom of the housing is opened, and a yielding hole is formed in the outer end of the corresponding tool mounting groove.

As a further another scheme, the crankshaft is axially and movably matched with the base and the sliding seat, and the base is also provided with a clutch control mechanism for controlling the axial movement of the crankshaft.

A sleeve assembly is rotatably matched outside the reference section of the crankshaft, a concave cavity is formed in the base corresponding to the sleeve assembly, the sleeve assembly is axially and movably matched with the concave cavity, and a through hole is formed in the bottom of the concave cavity and corresponds to the outer end of the reference section; the clutch control mechanism is a driving cylinder which is arranged at the bottom of the base and is in transmission connection with the sleeve assembly.

The sleeve assembly comprises a sleeve and a gland, and a first bearing is arranged between the sleeve and the reference section of the crankshaft; the gland is fixedly connected with the sleeve, wing surfaces extend out of two sides of the gland, and the wing surfaces are in transmission connection with a piston rod of the driving cylinder through guide posts; the bottom left and right sides of base is equipped with the mounting groove, drives actuating cylinder and sets up in the mounting groove, is equipped with in the mounting groove and accesss to the guide way of cavity, guide post and guide way direction cooperation.

The beneficial effects of the utility model are as follows:

(1) The utility model discloses a benchmark section and the base of bent axle rotate to be connected, the cooperation of the virtual position of spacing chamber on the eccentric section of bent axle and the slide, and reciprocating motion is made to the rotation of bent axle, makes slide and the relative base of cutter, and the bent axle does not need just reverse to switch, only needs to rotate towards any one direction, can realize high-efficient reciprocating motion, reduces the requirement to the motor performance.

(2) The crankshaft of the utility model can drive the crankshaft to move axially through the clutch control mechanism, so that the reference section of the crankshaft and the power of the processing equipment have clutch relation or high-low speed clutch switching relation, and the long-term work or the long-term high-speed work of the sliding seat is avoided; the linear power head with the structure is connected with the power output of the processing equipment, and particularly under the condition that a plurality of power outputs of the processing equipment are linked, the structure is more suitable.

Drawings

Fig. 1 is an exploded schematic view of a first embodiment of the present invention.

Fig. 2 is another angle structure diagram of fig. 1.

Fig. 3 is a schematic structural diagram of the first embodiment of the present invention after assembly.

Fig. 4 is another angle structure diagram of fig. 3.

Fig. 5 is a schematic top view of the first embodiment of the present invention.

Fig. 6 isbase:Sub>A schematic view of the cross-sectional structurebase:Sub>A-base:Sub>A in fig. 5.

Fig. 7 is an exploded view of the first embodiment of the present invention and the housing.

Fig. 8 is a schematic structural view of a second embodiment of the present invention.

Fig. 9 is an exploded view of the second embodiment of the present invention.

Fig. 10 is another angle structure diagram of fig. 9.

Fig. 11 is a left side view structural diagram of the first embodiment of the present invention.

FIG. 12 is a schematic view of the cross-sectional structure B-B in FIG. 11.

Fig. 13 is a schematic view of another working state structure of fig. 12.

Detailed Description

In a first embodiment, referring to fig. 1 to 7, a linear power head includes a base 1 and a slide carriage 6 for mounting a tool, the slide carriage 6 is slidably mounted above the base 1 in a guiding manner, and further includes a crankshaft 4, the crankshaft 4 includes a reference section 41 and an eccentric section 43, the reference section 41 of the crankshaft 4 is rotatably fitted with the base 1, the slide carriage 6 is provided with a limit cavity 61 corresponding to the eccentric section 43, an inner wall of the limit cavity 61 is in virtual fit with an outer wall of the eccentric section 43, and the slide carriage 6 is driven to reciprocate by the rotation of the crankshaft 4; when the crankshaft 4 rotates, the reference section 41 rotates on the base 1 (the reference section 41 is connected with rotary power), the eccentric section 43 rotates by taking the reference section 41 as a center, the outer wall of the eccentric section 43 is locally contacted with the inner wall of the limiting cavity 61 in the rotating process, and the contact position changes periodically along with the rotation, so that the sliding base 6 is driven to do periodic directional reciprocating motion relative to the base 1.

The sliding seat 6 is in linear sliding fit with the base 1, the limiting cavity 61 is a long strip-shaped hole, the outer wall of the eccentric section 43 is abutted to or in clearance fit with the inner wall of the limiting cavity 61 in the short axis direction, and the outer wall of the eccentric section 43 and the inner wall of the limiting cavity 61 in the long axis direction form an imaginary position 611; the outer wall of the eccentric section 43 is always kept against or in clearance fit with the inner wall of the limiting cavity 61 in the short axis direction, when the crankshaft 4 rotates, the eccentric section 43 continuously drives the sliding seat 6 to move, the phenomenon of interruption and impact generated by interruption does not exist, and meanwhile, the eccentric section 43 moves along the long axis direction of the limiting cavity 61 and drives the sliding seat 6 to do periodic linear reciprocating motion relative to the base 1.

The eccentric section 43 is provided with a second bearing 51 corresponding to the position of the limit cavity 61, the outer end of the eccentric section 43 is provided with a lock nut 52 for limiting the axial displacement of the second bearing 51, the outer wall of the second bearing 51 is abutted against or in clearance fit with the inner wall of the limit cavity 61 in the short axis direction, and the outer wall of the second bearing 51 and the inner wall of the limit cavity 61 in the long axis direction form a virtual position 611; the eccentric section 43 is in rolling contact with the inner wall of the limiting cavity 61 through the second bearing 51, two second bearings 51 are arranged, and the contact area between the second bearings 51 and the limiting cavity 61 is increased, so that the eccentric section 43 drives the sliding seat 6 to move smoothly, stably and quietly; the lower end surface of the sliding seat 6 is provided with an extension boss 64 corresponding to the limiting cavity 61 and the second bearing 51, so that the strength of the sliding seat is increased; the lock nut 52 is used to press the second bearing 51 to prevent the second bearing 51 from moving axially.

The base 1 is provided with shaft holes 13 penetrating through the upper side and the lower side of the base corresponding to the reference section 41, the reference section 41 extends into the shaft holes 13 and is provided with a first bearing 44 between the shaft holes 13, the reference section 41 is sleeved with the gland 3, and the gland 3 is pressed on the upper end surface of the base 1; the gland 3 is covering the upper end of the shaft hole 13 to avoid external impurities from entering the shaft hole 13 and influencing the normal rotation of the crankshaft 4.

The base 1 is provided with a mounting sinking platform 11 corresponding to the gland 3, and the gland 3 is fixed on the mounting sinking platform 11 through a fastener; the crankshaft 4 further comprises a crank arm 42 connecting the eccentric section 43 and the reference section 41, a positioning boss 421 is arranged on the outer periphery of the lower end surface of the crank arm 42, a positioning groove 31 is arranged on the upper end surface of the gland 3 corresponding to the positioning boss 421, and the positioning boss 421 abuts against the positioning groove 31; the upper end surface of the gland 3 is flush with the upper end surface of the base 1, so that the structure is more compact; the periphery in shaft hole 13 is equipped with base fixed orifices 12, and the fastener passes base fixed orifices 12, is fixed in on the corresponding frame base 1, and slide 6 corresponds base fixed orifices 12 and is equipped with the groove of stepping down 63, makes things convenient for the loading and unloading of the fastener on the base fixed orifices 12.

Slide 6 through sliding assembly 2 with base 1 is connected, sliding assembly 2 is including being fixed in the linear guide 21 of base 1 up end and being fixed in the slider 22 of slide 6 lower extreme face, slider 22 and linear guide 21 straight line sliding fit. Bent axle 4 sets up the middle part of base 1, the top surface of base 1 corresponds the other left and right sides of bent axle 4 and all is equipped with sliding component 2, sliding seat 6 holds at both ends about and puts on sliding component 2, spacing chamber 61 is located sliding seat 6's middle part. The sliding assembly 2 is arranged on two sides of the shaft hole 13, two groups of sliding assemblies 2 are arranged on each side, the linear guide rail 21 and the sliding block 22 are fixed on the base 1 and the sliding seat 6 respectively through fasteners, and the sliding seat 6 can slide linearly and easily relative to the base 1 due to the arrangement of the sliding assembly 2.

The upper end of the slide seat 6 is connected with a cutter seat 71, and the upper end of the cutter seat 71 is provided with a cutter mounting groove 72 and a cutter pressing block 74 for pressing a cutter; in this embodiment, a tool apron 71 is provided, the tool apron 71 is located on one side of the limiting cavity 61 of the sliding seat 6, or according to the use requirement, another tool apron 71 is symmetrically arranged on the upper end surface of the sliding seat 6 corresponding to the other side of the limiting cavity 61; the upper end of the cutter holder is provided with two mounting grooves 72 for mounting cutters, each mounting groove 72 is correspondingly provided with a cutter pressing block 74, the cutters are mounted on the mounting grooves 72, the upper ends of the cutters are pressed against the cutter pressing blocks 74, and the cutters are screwed and fixed by using fasteners.

The lower end surface of the cutter holder 71 is provided with a limiting boss 73, the upper end surface of the sliding seat 6 is provided with a limiting groove 62 corresponding to the limiting boss 73, and the limiting boss 73 of the cutter holder 71 is inserted into the limiting groove 62 of the sliding seat 6 and is fixed through a fastener; the limiting boss 73 is matched with the limiting groove 62, is mainly used for bearing the load during slotting and machining of the cutter, and has a positioning effect to avoid the cutter holder 71 from being installed in a wrong direction.

The cutter mounting device further comprises a housing 8 for covering the base 1 and the sliding seat 6, wherein the bottom of the housing 8 is open, and a yielding hole 81 is formed in the outer end of the housing corresponding to the cutter mounting groove 72; the housing 8 can effectively prevent external impurities from entering the housing 8 to affect the normal operation of the components, meanwhile, the danger caused by mistakenly touching the components in the housing 8 can be avoided, and the cutter extends out of the abdicating hole 81.

The linear power head can be arranged on a rotary cutter tower with a power clutch for use, and when the linear power head is required to work, the rotary cutter tower is controlled to be connected with power.

The first bearing 44 is a ball bearing, and the second bearing 51 is a roller bearing.

The second embodiment is different from the first embodiment in that: referring to fig. 8 to 12, the crankshaft 4 is axially movably matched with the base 1 and the sliding seat 6, and the base 1 is further provided with a clutch control mechanism for controlling the crankshaft 4 to axially move.

A sleeve assembly is rotatably matched outside the reference section 41 of the crankshaft 4, a concave cavity 16 is formed in the base 1 corresponding to the sleeve assembly, the sleeve assembly is axially and movably matched with the concave cavity 16, and a through hole is formed in the bottom of the concave cavity 16 corresponding to the outer end of the reference section 41; the clutch control mechanism is a driving cylinder 9, and the driving cylinder 9 is arranged at the bottom of the base 1 and is in transmission connection with the sleeve component.

The sleeve assembly comprises a sleeve 14 and a gland 3, and a first bearing 44 is arranged between the sleeve 14 and the reference section 41 of the crankshaft 4; the gland 3 is fixedly connected with the sleeve 14, wing surfaces extend out of two sides of the gland 3, and the wing surfaces are in transmission connection with a piston rod of the driving cylinder 9 through guide columns 91; the bottom left and right sides of base 1 is equipped with mounting groove 15, drives actuating cylinder 9 and sets up in mounting groove 15, is equipped with in the mounting groove 15 and accesss to the guide way 17 of cavity 16, guide post 91 and guide way 17 direction cooperation.

The working principle is as follows: the linear power head can be arranged on the vertical power transmission of the numerical control machine tool, although a plurality of power output ends in the vertical power transmission are linked, the structure can jack the sleeve component and the crankshaft 4 in the direction of an arrow H in fig. 13 through the driving air cylinder 9, so that the reference section 41 of the crankshaft 4 is separated from the power output ends or the meshing relation is changed, and high-speed and low-speed conversion is realized.

The foregoing is the preferred embodiment of the present invention, showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a straight line unit head, includes base (1) and slide (6) that are used for the installation cutter, slide (6) straight line slidable mounting in base (1) top, its characterized in that: still including bent axle (4), bent axle (4) include benchmark section (41) and eccentric section (43), the benchmark section (41) of bent axle (4) with base (1) normal running fit, slide (6) correspond eccentric section (43) and are equipped with spacing chamber (61), and the cooperation of spacing chamber (61) inner wall and the virtual position of eccentric section (43) outer wall, the rotation drive slide (6) reciprocating motion of bent axle (4).

2. The linear power head of claim 1, wherein: the crankshaft (4) is axially and movably matched with the base (1) and the sliding seat (6), and the base (1) is further provided with a clutch control mechanism for controlling the crankshaft (4) to axially move.

3. The linear power head of claim 2, wherein: a sleeve component is rotatably matched outside the reference section (41) of the crankshaft (4), a concave cavity (16) is formed in the base (1) corresponding to the sleeve component, the sleeve component is axially and movably matched with the concave cavity (16), and a through hole is formed in the bottom of the concave cavity (16) corresponding to the outer end of the reference section (41); the clutch control mechanism is a driving cylinder (9), and the driving cylinder (9) is arranged at the bottom of the base (1) and is in transmission connection with the sleeve assembly.

4. The linear power head of claim 3, wherein: the sleeve assembly comprises a sleeve (14) and a gland (3), and a first bearing (44) is arranged between the sleeve (14) and a reference section (41) of the crankshaft (4); the gland (3) is fixedly connected with the sleeve (14), wing surfaces extend out of two sides of the gland (3), and the wing surfaces are in transmission connection with a piston rod of the driving cylinder (9) through guide columns (91); the bottom left and right sides of base (1) is equipped with mounting groove (15), drives actuating cylinder (9) and sets up in mounting groove (15), is equipped with in mounting groove (15) and accesss to guide way (17) of cavity (16), guide post (91) and guide way (17) direction cooperation.

5. The linear powerhead of any of claims 1 to 4, wherein: the limiting cavity (61) is a long-strip-shaped hole, the outer wall of the eccentric section (43) is abutted to or in clearance fit with the inner wall of the limiting cavity (61) in the short axis direction, and the outer wall of the eccentric section (43) and the inner wall of the limiting cavity (61) in the long axis direction form an imaginary position (611).

6. The linear power head of claim 5, wherein: the eccentric section (43) is provided with a second bearing (51) corresponding to the position of the limiting cavity (61), the outer end of the eccentric section (43) is provided with a locking nut (52) used for limiting the axial displacement of the second bearing (51), the outer wall of the second bearing (51) is abutted to or in clearance fit with the inner wall of the limiting cavity (61) in the short axis direction, and the outer wall of the second bearing (51) and the inner wall of the limiting cavity (61) in the long axis direction form a virtual position (611).

7. The linear power head of claim 1, wherein: base (1) corresponds benchmark section (41) is equipped with shaft hole (13) of running through both sides about it, and benchmark section (41) stretches into shaft hole (13), has cup jointed gland (3) on benchmark section (41), and base (1) corresponds gland (3) and is equipped with the heavy platform of installation (11), and gland (3) are fixed in on the heavy platform of installation (11) through the fastener.

8. The linear power head of claim 4 or 7, wherein: crankshaft (4) still including crank arm (42) of connecting eccentric section (43) and benchmark section (41), crank arm (42) lower extreme surface periphery is equipped with location boss (421), gland (3) up end corresponds location boss (421) and is equipped with positioning groove (31), and location boss (421) offset with positioning groove (31).

9. The linear power head of claim 1, wherein: the crankshaft (4) is arranged in the middle of the base (1), sliding assemblies (2) are arranged on the top surface of the base (1) corresponding to the left side and the right side of the crankshaft (4), the left end and the right end of the sliding seat (6) are placed on the sliding assemblies (2), and the limiting cavity (61) is located in the middle of the sliding seat (6); the sliding assembly (2) comprises a linear guide rail (21) fixed on the upper end face of the base (1) and a sliding block (22) fixed on the lower end face of the sliding seat (6), and the sliding block (22) is in linear sliding fit with the linear guide rail (21).

10. The linear power head of claim 1, wherein: the upper end of the sliding seat (6) is connected with a cutter seat (71), and the upper end of the cutter seat (71) is provided with a cutter mounting groove (72) and a cutter pressing block (74) for pressing a cutter; and/or, still including being used for covering base (1) and casing (8) of slide (6), the outer end that casing (8) bottom is opened and is corresponded cutter mounting groove (72) is equipped with abdicating hole (81).