CN112719937A

CN112719937A - Control mechanism capable of carrying out accurate position adjustment

Info

Publication number: CN112719937A
Application number: CN202011511935.8A
Authority: CN
Inventors: 郭德强
Original assignee: Ningbo Polytechnic
Current assignee: Ningbo Polytechnic
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-04-30
Anticipated expiration: 2040-12-18
Also published as: CN112719937B

Abstract

The invention discloses a control mechanism capable of carrying out accurate position adjustment, which comprises a workbench, a console, a movement control assembly, an adjusting assembly and a limiting assembly, wherein a rack is slidably arranged on the upper surface of the workbench through two groups of guide rails arranged in parallel, a servo motor is fixed on one side of the upper surface of the console, a main gear is arranged at the operation end of the servo motor, the adjusting assembly arranged in a parallel horizontal plane is used for connecting and transmitting the main gear and a first pinion or a second pinion, the axle center positions of the first pinion and the second pinion are connected through a screw rod, the screw rod is in threaded connection with the rack, the rotatable adjusting assembly is used for adjusting the movement rate of the rack, and the detachable limiting assembly is used for limiting the position of the adjusting assembly. The servo motor with controllability is used for acting power, the rack is accurately controlled to move back and forth, and the position of the rack is controlled.

Description

Control mechanism capable of carrying out accurate position adjustment

Technical Field

The invention belongs to the field of mechanisms, and particularly relates to a control mechanism capable of adjusting a precise position.

Background

The mechanism is a component system formed by movably connecting two or more components, and can be divided into a plane mechanism and a space mechanism according to the difference of relative motion among the components; the mechanism can be divided into a low pair mechanism and a high pair mechanism according to the category of the kinematic pair; it can be divided into a connecting rod mechanism, a gear mechanism, an inclined plane mechanism, a ratchet mechanism and the like according to the structural characteristics.

When the object is processed or processed by other processes, the position of the object needs to be controlled to move and adjusted, at the moment, the object is moved and adjusted through the control mechanism, and the object to be processed is processed by the processing equipment after being moved to the designated position.

The existing control mechanism has the following defects:

1. after the object is installed by the rack, the moving speed of the rack cannot be adjusted according to different processing requirements, so that the object to be processed, which is installed on the rack, moves at a certain speed;

2. controlling the frame to move at a position where the frame can not be accurately controlled during rotation speed adjustment in the moving process of the frame, and moving the object to be processed to a specified position;

3. the adjusting assembly is inconvenient to install and limit, so that the adjusting assembly can be adjusted in a rotating mode on the same plane.

Disclosure of Invention

To solve at least one of the problems set forth in the background art described above. The invention provides a control mechanism capable of carrying out accurate position adjustment.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a can carry out accurate position control mechanism, includes workstation, control cabinet, mobility control subassembly, adjusting part and spacing subassembly, the upper surface parallel of workstation is provided with two sets of guide rails, the upper surface of workstation is through two sets of parallel arrangement the frame is installed to guide rail slidable, surface mounting control panel on the control cabinet, the mobility control subassembly is used for controlling the frame slides, the mobility control subassembly includes servo motor, master gear, adjusting part, first pinion, second pinion and lead screw, control cabinet upper surface one side is fixed with servo motor, the master gear is installed to servo motor's operation end, parallel horizontal plane setting the adjusting part is used for the master gear with first pinion or the connection transmission between the second pinion, the axle center position of first pinion with the second pinion is connected through the lead screw, the screw rod is installed in the middle of the upper surface of the workbench, the screw rod is in threaded connection with the rack, the rotatable adjusting assembly is used for adjusting the moving speed of the rack, and the detachable limiting assembly is used for limiting the position of the adjusting assembly.

As a further improvement of the technical scheme, a group of threaded holes are formed in two ends of the rack in a penetrating mode, the rack is in a rotating structure with the screw rods through the threaded holes, and the rack forms a sliding structure with the workbench through the screw rods.

As a further improvement of the above technical solution, the control panel is electrically connected to the servo motor, the main gear forms a rotating structure through the adjusting assembly and the first or second sub-gear, and the first sub-gear, the second sub-gear and the lead screw are integrated.

As a further improvement of above-mentioned technical scheme, the adjusting part includes electric telescopic handle, spacing groove, alignment jig, stopper, connecting block, first drive gear and second drive gear, the control cabinet upper surface is kept away from a set of electric telescopic handle is installed to one side of control panel, the spacing groove has been seted up on electric telescopic handle's the telescopic link, U "form be fixed with a set of stopper on the inner wall of the fretwork position in the middle of the alignment jig, the stopper both sides are laminated all the time on the inner wall of spacing groove, the opening opposite side intermediate position of alignment jig is fixed with the connecting block, there are first drive gear and second drive gear at the both ends of alignment jig through bolt difference fixed mounting, the both sides of first drive gear respectively with the master gear with first pinion is connected:

or the two sides of the second transmission gear are respectively connected with the main gear and the second auxiliary gear.

As a further improvement of the technical scheme, the surface of the limiting groove is arc-shaped, the local inner size of the limiting groove is the same as the local outer size of the limiting block, and the limiting block is tangent to the telescopic rod of the electric telescopic rod through the limiting groove.

As a further improvement of the technical scheme, the middle hollow section of the adjusting frame is the same as the section of the telescopic rod of the electric telescopic rod, and the rotating range of the adjusting frame is 0-180 degrees.

As a further improvement of the above technical solution, the thickness of the first transmission gear is twice the thickness of the second transmission gear, and the first transmission gear and the second transmission gear are symmetrically arranged around a hollow-out portion in the middle of the adjusting bracket.

As a further improvement of the technical scheme, the electric telescopic rod is connected with the control panel through an electric signal, and the longest telescopic amount of the telescopic rod arranged on the electric telescopic rod is smaller than the distance between the second auxiliary gear and the linear distance of the console.

As a further improvement of the above technical scheme, the limiting component comprises a lower limiting frame, a clamping groove and an upper limiting frame, the upper surface of the console is provided with the lower limiting frame, the lower limiting frame is located on one side of the telescopic end of the electric telescopic rod, the clamping groove in a 'middle' structure is formed in the lower limiting frame, the clamping groove formed in the lower limiting frame is used for installing the connecting block and limiting the telescopic rod of the electric telescopic rod, and the upper limiting frame is installed above the lower limiting frame through bolts.

As a further improvement of the technical scheme, the section shape of the connecting block is T-shaped, the section shape of the connecting block is the same as the local section shape of the clamping groove, and the connecting block forms a detachable structure through the clamping groove and the lower limiting frame.

Compared with the prior art, the invention has the beneficial effects that:

the invention discloses a control mechanism capable of adjusting accurate positions, which comprises a workbench, a console, a movement control component, an adjusting component and a limiting component, wherein two groups of guide rails are arranged on the upper surface of the workbench in parallel, a rack is slidably arranged on the upper surface of the workbench through the two groups of guide rails arranged in parallel, a control panel is arranged on the upper surface of the console, the movement control component is used for controlling the rack to slide, the movement control component comprises a servo motor, a master gear, an adjusting component, a first pinion, a second pinion and a screw rod, the servo motor is fixed on one side of the upper surface of the console, the master gear is arranged at the operation end of the servo motor, the adjusting component arranged in parallel to the horizontal plane is used for connecting and transmitting the master gear and the first pinion or the second pinion, and the axial center positions of the first pinion and the second pinion are connected through the screw rod, the screw rod is installed in the middle of the upper surface of the workbench, the screw rod is in threaded connection with the rack, the rotatable adjusting assembly is used for adjusting the moving speed of the rack, and the detachable limiting assembly is used for limiting the position of the adjusting assembly. The servo motor that utilizes to possess the controllability acts on power, and the accurate control frame reciprocates, the position of control frame, and adopts adjustable rotational speed auto-change over device, through the speed that the frame removed, conveniently deals with the different processing methods of treating the processing article to inject auto-change over device and rotate at same horizontal position, conveniently cooperate power transmission, make the device be convenient for adjust the rotational speed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram of the rack of the present invention after moving;

FIG. 3 is a schematic diagram of a switching state structure of the adjusting assembly according to the present invention;

FIG. 4 is a schematic view of the high speed movement transmission of the frame of the present invention;

FIG. 5 is a schematic view of the structure of a servo motor and an electric telescopic rod arranged on a console of the present invention;

FIG. 6 is a schematic view of an adjusting bracket mounting structure according to the present invention;

fig. 7 is a schematic cross-sectional view of the adjusting bracket of the present invention.

In the figure: 1. a work table; 2. a guide rail; 3. a frame; 4. a console; 5. a control panel; 6. a movement control assembly; 601. a servo motor; 602. a main gear; 603. an adjustment assembly; 6031. an electric telescopic rod; 6032. a limiting groove; 6033. an adjusting bracket; 6034. a limiting block; 6035. connecting blocks; 6036. a first drive gear; 6037. a second transmission gear; 604. a first counter gear; 605. a second counter gear; 606. a screw rod; 7. a limiting component; 701. a lower limiting frame; 702. a card slot; 703. and an upper limiting frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the embodiments of the present invention.

The existing control mechanism has the following defects:

Based on this, the embodiment of the invention provides a control mechanism capable of performing accurate position adjustment, which is convenient to use and is convenient for operators to use.

Hereinafter, a control mechanism capable of performing precise position adjustment according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 7.

Referring to fig. 1-7, the present invention provides the following technical solutions: a control mechanism capable of adjusting accurate positions comprises a workbench 1, a console 4, a movement control assembly 6, an adjusting assembly 603 and a limiting assembly 7, wherein two groups of guide rails 2 are arranged on the upper surface of the workbench 1 in parallel, a rack 3 is slidably arranged on the upper surface of the workbench 1 through the two groups of guide rails 2 arranged in parallel, a control panel 5 is arranged on the upper surface of the console 4, the movement control assembly 6 is used for controlling the rack 3 to slide, the movement control assembly 6 comprises a servo motor 601, a main gear 602, the adjusting assembly 603, a first secondary gear 604, a second secondary gear 605 and a screw rod 606, the servo motor 601 is fixed on one side of the upper surface of the console 4, the main gear 602 is arranged at the operation end of the servo motor 601, the adjusting assembly 603 arranged in a parallel horizontal plane is used for connecting transmission between the main gear 602 and the first secondary gear 604 or the second secondary gear 605, the axial center positions of the first secondary gear 604 and the second secondary gear 605 are connected through a screw rod 606, the screw rod 606 is installed at the middle position of the upper surface of the workbench 1, the screw rod 606 is in threaded connection with the frame 3, the rotatable adjusting assembly 603 is used for adjusting the moving speed of the frame 3, and the detachable limiting assembly 7 is used for limiting the position of the adjusting assembly 603. Utilize the servo motor 601 effect power that possesses the controllability, accurate control frame 3 reciprocates, the position of control frame 3, and adopts adjustable rotational speed auto-change over device, through the speed that frame 3 removed, conveniently deals with the different processing methods of treating the processing article to inject auto-change over device and rotate at same horizontal position, conveniently cooperate power transmission, make the device be convenient for adjust the rotational speed.

Further, a set of threaded holes are formed in two ends of the rack 3 in a penetrating mode, the rack 3 is in a rotating structure between the threaded holes and the screw rod 606, and the rack 3 forms a sliding structure through the screw rod 606 and the workbench 1. The rack 3 is installed by matching a threaded hole formed in the rack 3 with the screw rod 606, and meanwhile, the rack 3 is installed on the workbench 1 through the guide rail 2, so that the position of the rack 3 on the workbench 1 can be adjusted by controlling the screw rod 606 to rotate forwards and backwards, the position of a workpiece fixed on the rack 3 is adjusted, and the rotating speed of the screw rod 606 influences the moving speed of the rack 3. The air cylinder is adopted to push the frame 3 to slide on the workbench 1, the position of the frame 3 on the workbench 1 can be adjusted, and the adjustment of the moving speed of the frame 3 can be realized.

Further, the control panel 5 is electrically connected to the servo motor 601, the main gear 602 forms a rotating structure through the adjusting component 603 and the first or

second pinion

604 or 605, and the first and

second pinions

604 and 605 and the lead screw 606 are integrally formed. The servo motor 601 is started through the control panel 5, a power source is provided for transmission of the whole control mechanism, the main gear 602 mounted on the servo motor 601 controls the first pinion 604 or the second pinion 605 to rotate through the adjusting component 603, rotation of the screw rod 606 is further achieved, the servo motor 601 is used for providing a power source to control the screw rod 606, the number of rotating circles of the screw rod 606 can be accurately controlled, and the position of the rack 3 on the workbench 1 can be accurately controlled.

Further, the adjusting component 603 comprises an electric telescopic rod 6031, a limit groove 6032, an adjusting bracket 6033, a limit block 6034, a connecting block 6035, a first transmission gear 6036 and a second transmission gear 6037, a group of electric telescopic rods 6031 are arranged on one side of the upper surface of the control platform 4 far away from the control panel 5, a limit groove 6032 is arranged on the telescopic rod of the electric telescopic rod 6031, a group of limit blocks 6034 are fixed on the inner wall of the hollow position in the middle of the U-shaped adjusting frame 6033, two sides of the limit block 6034 are always attached to the inner wall of the limit groove 6032, a connecting block 6035 is fixed in the middle of the other side of the opening of the adjusting frame 6033, a first transmission gear 6036 and a second transmission gear 6037 are respectively and fixedly installed at two ends of the adjusting frame 6033 through bolts, two sides of the first transmission gear 6036 are respectively connected with the main gear 602 and the first secondary gear 604:

or both sides of the second transmission gear 6037 are connected to the main gear 602 and the second sub-gear 605, respectively. By arranging the first transmission gear 6036 and the second transmission gear 6037 with different tooth space numbers at two ends of the adjusting bracket 6033 and selecting one group of transmission gears to connect the main gear 602 and the secondary gear, the main gear 602 can control the screw rod 606 to rotate at different rotating speeds, and the rack 3 mounted on the screw rod 606 can be controlled to move on the workbench 1 at different speeds.

Further, the surface of the limiting groove 6032 is arc-shaped, the local internal size of the limiting groove 6032 is the same as the local external size of the limiting block 6034, and the limiting block 6034 passes through the limiting groove 6032 and the telescopic rod of the electric telescopic rod 6031 is tangent. Spacing groove 6032 and stopper 6034's cooperation makes electric telescopic handle 6031 one end when carrying out flexible removal, under spacing groove 6032's effect, stopper 6034 can carry out rotary motion with spacing groove 6032's shape orbit, changes the angle that stopper 6034 set up, makes alignment jig 6033 rotate.

Further, the middle hollow section of the adjusting frame 6033 is the same as the cross section of the telescopic rod 6031, and the rotation range of the adjusting frame 6033 is 0-180 °. The fretwork department of seting up through alignment jig 6033 is installed electric telescopic handle 6031's telescopic link, and then make stopper 6034 be located spacing groove 6032's inside, can not let alignment jig 6033 slide along with electric telescopic handle 6031 horizontal slip, at stopper 6034 and spacing groove 6032's cooperation, electric telescopic handle 6031 is flexible after reaching the maximum value, control alignment jig 6033 carries out 180 rotations, make the first drive gear 6036 and the second drive gear 6037 position of last installation of electric telescopic handle 6031 exchange.

Further, the thickness of the first transmission gear 6036 is twice the thickness of the second transmission gear 6037, and the first transmission gear 6036 and the second transmission gear 6037 are symmetrically arranged around the middle hollow of the adjusting frame 6033. The first transmission gear 6036 and the second transmission gear 6037 are thick, so that after the two sets of transmission gears are rotated and exchanged, the two sets of transmission gears can be meshed and connected with the main gear 602 and the auxiliary gear arranged on the two sides to form a complete transmission chain.

Further, electric signal connection is adopted between the electric telescopic rod 6031 and the control panel 5, and the longest telescopic amount of the telescopic rod arranged on the electric telescopic rod 6031 is smaller than the linear distance between the second pinion 605 and the console 4. Control electric telescopic handle 6031 work through control panel 5, control alignment jig 6033 rotates to the length setting of telescopic link, can not lead to the fact the influence to second pinion 605 with direct contact between the second pinion 605.

Further, spacing subassembly 7 includes spacing 701, draw-in groove 702 and last spacing 703 down, surface mounting has spacing 701 down on the control cabinet 4, spacing 701 is located the one side of the flexible end of electric telescopic handle 6031 down, the draw-in groove 702 of "well" word structure is seted up to the inside of spacing 701 down, offer on the spacing 701 down draw-in groove 702 is used for installing connecting block 6035 and restriction electric telescopic handle 6031's telescopic link, spacing 703 is gone up through the bolt installation to the top of spacing 701 down. The connecting block 6035 is mounted by using a clamping groove 702 formed in the lower limiting frame 701, and then the lower limiting frame 701 and the upper limiting frame 703 are assembled by bolts to limit the connecting block 6035, so that the position of the adjusting frame 6033 is limited.

Further, the sectional shape of the connecting block 6035 is "T" shaped, the sectional shape of the connecting block 6035 is the same as the partial sectional shape of the clamping groove 702, and the connecting block 6035 passes through the clamping groove 702 and the lower limiting frame 701 to form a detachable structure. Connecting block 6035 installs in the inside of draw-in groove 702, and connecting block 6035 can rotate with the help of draw-in groove 702, but connection structure between the two, prescribes a limit to connecting block 6035's position, makes connecting block 6035 be convenient for when installing, prescribes a limit to break away from between it and the lower retainer 701 to make connecting block 6035 install the relative fixed state of keeping between the back and the control cabinet 4 on lower retainer 701.

The working principle and the using process of the invention are as follows: firstly, a main gear 602, a second transmission gear 6037 and a second auxiliary gear 605 are used for forming a completed transmission structure, a screw rod 606 is controlled by the rotation of a servo motor 601 to rotate rapidly, so that a frame 3 moves to a region to be processed on a workbench 1 rapidly by a guide rail 2, then one end of an electric telescopic rod 6031 is controlled by a control panel 5 to extend, one end of the electric telescopic rod 6031 moves telescopically, under the action of a limit groove 6032, a limit block 6034 can rotate along the shape track of the limit groove 6032, when the electric telescopic rod 6031 extends to the maximum, an adjusting frame 6033 rotates for 180 degrees, so that a first transmission gear 6036 and a second transmission gear 6037 arranged on the electric telescopic rod 6031 are exchanged in position (because one end of the adjusting frame 6033 is limited between a connecting block 6035 and a lower limit frame 701 and an upper limit frame 703, when the adjusting frame 6033 rotates, does not move), at this time, the main gear 602, the first transmission gear 6036 and the first secondary gear 604 form another group of completed transmission structure, the screw rod 606 is controlled to rotate slowly, so that the machine frame 3 moves slowly in the area to be processed, and the processing of the objects mounted on the machine frame 3 is facilitated.

Therefore, the control mechanism capable of adjusting the accurate position comprises a workbench 1, a control console 4, a movement control assembly 6, an adjusting assembly 603 and a limiting assembly 7, wherein two groups of guide rails 2 are arranged on the upper surface of the workbench 1 in parallel, a rack 3 is slidably arranged on the upper surface of the workbench 1 through the two groups of guide rails 2 arranged in parallel, a control panel 5 is arranged on the upper surface of the control console 4, the movement control assembly 6 is used for controlling the rack 3 to slide, the movement control assembly 6 comprises a servo motor 601, a main gear 602, the adjusting assembly 603, a first secondary gear 604, a second secondary gear 605 and a screw rod 606, the servo motor 601 is fixed on one side of the upper surface of the control console 4, the main gear 602 is arranged at the operation end of the servo motor 601, the adjusting assembly 603 arranged in parallel to the horizontal plane is used for connecting transmission between the main gear 602 and the first secondary gear 604 or the second secondary gear 605, the first pinion 604 and the second pinion 605 are connected at the axial center position through a screw rod 606, the screw rod 606 is installed at the middle position of the upper surface of the workbench 1, the screw rod 606 is in threaded connection with the frame 3, the rotatable adjusting component 603 is used for adjusting the moving speed of the frame 3, the detachable limiting component 7 is used for limiting the position of the adjusting component 603, a servo motor is started through a control panel to provide a power source for the transmission of the whole control mechanism, a main gear installed on the servo motor is used for controlling the first pinion or the second pinion to rotate through the adjusting component, so as to realize the rotation of the screw rod, the servo motor is used for providing the power source to control the screw rod, the number of rotating circles of the screw rod can be accurately controlled, so that the position of the frame on the workbench can be accurately controlled, and the electric telescopic rod is controlled to extend and retract through the control panel, when telescopic movement is carried out to electric telescopic handle one end, under the effect of spacing groove, the stopper can carry out rotary motion with the shape orbit of spacing groove, electric telescopic handle stretches out and draws back and reaches the maximum value after, the control alignment jig carries out rotation, make the first drive gear of electric telescopic handle last installation and second drive gear position exchange, make different drive gear connect master gear and pinion, make the master gear can control the different rotational speed of lead screw and rotate, the control makes the frame of installation on the lead screw remove on the workstation with different speed, and utilize the draw-in groove of seting up on the alignment jig down to install the connecting block, then alignment jig and last alignment jig under through the bolt assembly, inject the connecting block, when making the alignment jig rotatory, the displacement can not change.

In the description of the present invention, the terms "first", "second", "another", and "yet" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a can carry out accurate position control mechanism, includes workstation (1), control cabinet (4), mobile control subassembly (6), adjusting part (603) and spacing subassembly (7), its characterized in that: the upper surface of the workbench (1) is provided with two groups of guide rails (2) in parallel, the upper surface of the workbench (1) is provided with a rack (3) in a sliding manner through the two groups of guide rails (2) in parallel, the console (4) is provided with a control panel (5) on the upper surface, a mobile control component (6) is used for controlling the rack (3) to slide, the mobile control component (6) comprises a servo motor (601), a main gear (602), an adjusting component (603), a first pinion (604), a second pinion (605) and a screw rod (606), one side of the upper surface of the console (4) is fixed with the servo motor (601), the main gear (602) is arranged at the operation end of the servo motor (601), the adjusting component (603) arranged in a parallel horizontal plane is used for connection transmission between the main gear (602) and the first pinion (604) or the second pinion (605), the axial center positions of the first secondary gear (604) and the second secondary gear (605) are connected through a screw rod (606), the screw rod (606) is installed in the middle position of the upper surface of the workbench (1), the screw rod (606) is in threaded connection with the rack (3), the rotatable adjusting assembly (603) is used for adjusting the moving speed of the rack (3), and the detachable limiting assembly (7) is used for limiting the position of the adjusting assembly (603).

2. The fine position adjustment possible control mechanism according to claim 1, characterized in that: a group of threaded holes are formed in the two ends of the rack (3) in a penetrating mode, the rack (3) is in a rotating structure between the threaded holes and the screw rods (606), and the rack (3) is in a sliding structure formed by the screw rods (606) and the workbench (1).

3. The fine position adjustment possible control mechanism according to claim 1, characterized in that: the control panel (5) is electrically connected with the servo motor (601), the main gear (602) forms a rotating structure through the adjusting component (603) and the first pinion (604) or the second pinion (605), and the first pinion (604), the second pinion (605) and the screw rod (606) form an integrated structure.

4. The fine position adjustment possible control mechanism according to claim 1, characterized in that: the adjusting component (603) comprises an electric telescopic rod (6031), a limiting groove (6032), an adjusting frame (6033), a limiting block (6034), a connecting block (6035), a first transmission gear (6036) and a second transmission gear (6037), one side, far away from the control panel (5), of the upper surface of the console (4) is provided with a group of electric telescopic rods (6031), the telescopic rod of the electric telescopic rod (6031) is provided with the limiting groove (6032), the inner wall of the middle hollow position of the adjusting frame (6033) in a U shape is fixedly provided with a group of limiting blocks (6034), two sides of each limiting block (6034) are always attached to the inner wall of the limiting groove (6032), the middle position of the other side of the opening of the adjusting frame (6033) is fixedly provided with the connecting block (6035), two ends of the adjusting frame (6033) are respectively fixedly provided with the first transmission gear (6036) and the second transmission gear (6037) through bolts, two sides of the first transmission gear (6036) are respectively connected with the main gear (602) and the first secondary gear (604):

or both sides of the second transmission gear (6037) are respectively connected with the main gear (602) and the second secondary gear (605).

5. The fine position adjustment possible control mechanism according to claim 4, characterized in that: the surface of spacing groove (6032) is the arc form, spacing groove (6032) local inside dimension with the local outside dimension of stopper (6034) is the same, stopper (6034) pass through spacing groove (6032) with electric telescopic handle (6031)'s telescopic link is tangent.

6. The fine position adjustment possible control mechanism according to claim 4, characterized in that: the middle hollow section of the adjusting frame (6033) is the same as the telescopic rod section of the electric telescopic rod (6031), and the rotating range of the adjusting frame (6033) is 0-180 degrees.

7. The fine position adjustment possible control mechanism according to claim 4, characterized in that: the thickness of the first transmission gear (6036) is twice that of the second transmission gear (6037), and the first transmission gear (6036) and the second transmission gear (6037) are symmetrically arranged around the middle hollow-out part of the adjusting frame (6033).

8. The fine position adjustment possible control mechanism according to claim 4, characterized in that: electric signal connection is adopted between the electric telescopic rod (6031) and the control panel (5), and the longest telescopic amount of the telescopic rod arranged on the electric telescopic rod (6031) is smaller than the distance between the second auxiliary gear (605) and the straight line distance of the control console (4).

9. The fine position adjustment possible control mechanism according to claim 1, characterized in that: spacing subassembly (7) are including spacing frame (701) down, draw-in groove (702) and go up spacing frame (703), surface mounting has spacing frame (701) down on control cabinet (4), spacing frame (701) are located the one side of electric telescopic handle (6031) flexible end down, draw-in groove (702) of "well" word structure are seted up to the inside of spacing frame (701) down, offer on spacing frame (701) down draw-in groove (702) are used for the installation connecting block (6035) and the restriction the telescopic link of electric telescopic handle (6031), spacing frame (703) are installed through the bolt in the top of spacing frame (701) down.

10. The fine position adjustment enabled control mechanism according to claim 9, wherein: the cross sectional shape of connecting block (6035) is "T" form, the cross sectional shape of connecting block (6035) with the local cross sectional shape of draw-in groove (702) is the same, connecting block (6035) pass through draw-in groove (702) with spacing (701) down constitute detachable construction.