CN113829263B - Steel needle screw positioning frame capable of freely adjusting needle threading depth - Google Patents

Abstract

The invention relates to the technical field of positioning frames, in particular to a steel needle screw positioning frame which can freely adjust the depth of needle penetration. It includes a screw adjustment body, the screw adjustment body at least includes a positioning device, the positioning device includes a bottom plate, the surface end of the bottom plate is oppositely provided with a side sliding opening, the surface of the bottom plate is symmetrically installed with a movable plate and a fixed plate, and the movable plate and the fixed plate The side ends of the bottom are symmetrically provided with sliders, and the movable plate is provided with bayonets opposite to the surface of the fixed plate; the adjustment device includes an adjustment plate, and a magnetic block is installed on the surface of the arc of the adjustment plate. The other end is internally threaded with a screw rod, and a screw turntable is installed on the surface near the bottom end of the screw rod. Two support plates are arranged at the bottom of one end of the adjustment plate. The two support plates are hingedly arranged, and the ends of the support plates are installed With support plate clip. The present invention uses a positioning device for the radical preliminary positioning of the steel needle screw, and the steel needle screw can be penetrated at different depths through the adjusting device.

Description

A steel needle screw positioning frame that can freely adjust the needle penetration depth

technical field

The invention relates to the technical field of positioning frames, in particular to a steel needle screw positioning frame which can freely adjust the depth of needle penetration.

Background technique

The positioning frame refers to the positioning of the mechanical parts or devices to limit the workpiece so that the operator can process it. With the development of science and technology, there are multiple requirements for the shape and size of the existing parts. In order to speed up the processing and production efficiency, the positioning frame will be used to limit the parts.

In the current steel needle screw parts, it is also necessary to limit the position when it is used, but the current positioning frame is mostly a positioning mechanism that cannot adjust the size, so that when positioning different sizes, it is necessary to The positioning frame is frequently replaced, and the positioning frame used by the existing steel needle screw is the same as that of other parts. It only contains a preliminary positioning mechanism and has no other structures, which is not convenient for the steel needle screw to be installed and used. In view of this, we propose a steel needle screw positioning frame that can freely adjust the needle penetration depth to solve the existing problems.

Contents of the invention

The purpose of the present invention is to provide a steel needle screw positioning frame that can freely adjust the depth of needle penetration, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the object of the present invention is to provide a steel needle screw positioning frame that can freely adjust the needle penetration depth, including a screw adjusting body, and the screw adjusting body at least includes:

A positioning device, the positioning device includes a base plate, the surface end of the base plate is oppositely provided with a side sliding opening, a movable plate and a fixed plate are symmetrically installed on the surface of the base plate, and the bottom side ends of the movable plate and the fixed plate The sliders are symmetrically arranged, and the sliders are slidingly connected with the side sliding opening, the movable plate is used to slide on the surface of the bottom plate, and the fixed plate is used to carry out Fixed, the movable plate is provided with a bayonet opening opposite to the surface side of the fixed plate, the bayonet is a semicircular stable arc structure, and the bayonet is used for fitting and positioning the cylindrical screw;

When the positioning device of the present invention is used in practice, the bottom slider of the movable plate is slidably connected to the inside of the side sliding opening, and the bottom slider of the fixed plate is fixed to the inside of the side sliding opening to form a corner end. At the center of the surface of the opposite bayonet, moving the movable plate towards the fixed plate can make the movable plate slide in the direction of the fixed plate along with the linear limit position of the slider, that is, for different sizes of steel needle screws The bayonet is clamped and positioned, and the cylindrical steel needle screw is positioned and fixed through the action of the arc bayonet.

An adjustment device, the adjustment device is located on the surface of the movable plate, the adjustment device includes an adjustment plate, one end of the adjustment plate is in the shape of an arc, and a magnetic block is installed on the surface of the arc of the adjustment plate, The magnetic block is used to absorb the positioned steel needle screw, the other end of the adjustment plate is internally threaded with a screw rod, and the bottom of the screw rod is movably connected with the surface of the movable plate, close to the wire A screw turntable is installed on the surface of the bottom end of the rod, and the screw turntable is used to rotate the screw rod. Two support plates are arranged at the bottom of one end of the adjustment plate, and the two support plates are hingedly arranged. , the end of the support plate is equipped with a support plate clamp, and the support plate clamp at the bottom is in movable contact with the movable plate;

When the adjusting device of the present invention is actually used, after the steel needle screw after the positioning is completed, the hinged support plate makes the adjusting plate form a supporting contact effect, and the screw mandrel turntable is rotated to make the screw mandrel rotate, and then the surface is threaded. The adjustment plate of the adjustment plate is displaced with the direction of the screw rod rotation. The position of the arc opening at one end of the adjustment plate and the bayonet is horizontal. The set magnetic block can make the metal steel needle screw adsorb. When the rotation of the screw rod occurs, that is The steel needle screw attracted by the magnetic block on the surface of the adjustment plate is moved, that is, the steel needle screw realizes various penetration depths as the position of the adjustment plate changes.

As a further improvement of the technical solution, protective sheets are installed on the surfaces of the bayonet sockets, and the protective sheets are used to protect and fit the steel needle screws tightly.

As a further improvement of the technical solution, a square groove is opened on the surface of the movable plate, and a push plate is arranged inside the square groove, and a connecting rod is installed on the inner side of the push plate, and the connecting rod and the The movable board is installed and fixed.

As a further improvement of the technical solution, several circular openings are provided on the surface of the square groove, and the several circular openings form a "V" shape, and fastening components are arranged between the circular openings. The solid assembly includes a cam, a rotating rod is installed inside one end of the cam, and a cam turntable is arranged on the top of the turn rod, and the cam turntable is used to rotate the cam, and one end of the cam is connected to the pusher The surface of the plate forms an extrusion.

As a further improvement of the technical solution, the other end surface of the cam is provided with a hole, and the inside of the hole is threaded with a stud, and the stud is used to place the round hole through the hole. internal fixation.

As a further improvement of the technical solution, a side port is provided at the side end of the fixing plate, and a pressure relief spring is provided inside the side port, and the pressure relief spring is used to reduce the generated relative extrusion force.

As a further improvement of the technical solution, an inner groove is opened in the center of the surface of the movable plate, and a fixed plate is installed on the bottom of the screw rod, and the fixed plate is in sliding connection with the inner groove.

As a further improvement of the technical solution, the surface of the movable plate is oppositely provided with a wheel opening, and the surface of the movable plate is provided with a transposition mechanism, and the transposition mechanism includes a fixed rod installed oppositely, and the fixed rod The top of the rod is installed and fixed with the adjustment plate, and pulleys are installed at the bottom of the fixed rod.

As a further improvement of this technical solution, a middle rod is connected between the fixed rods, a rack is sleeved in the center of the surface of the middle rod, and a gear is meshed with the bottom surface of the rack, and the surface of the gear is set There is a rotating column, and the two ends of the rotating column are provided with mounting plates.

As a further improvement of the technical solution, a transposition motor is provided at one end of the installation plate, and the transposition motor is rotatably connected to the rotating column.

Compared with prior art, the beneficial effect of the present invention:

1. In the steel needle screw positioning frame that can freely adjust the depth of needle penetration, by placing the steel needle screw in the center of the surface of the opposite bayonet, and moving the movable plate toward the fixed plate, the movable plate can be made to follow the movement of the slider. The linear limited position slides in the direction of the fixed plate, that is, the steel needle screws of different sizes are clamped and positioned through the bayonet of the pair, and the cylindrical steel needle screw is positioned and fixed through the action of the arc bayonet.

2. In the steel needle screw positioning frame that can freely adjust the needle penetration depth, the screw rod can be rotated by the rotation of the screw mandrel turntable, and then the adjustment plate connected by the surface thread is displaced with the direction of the screw rod rotation, and one end of the adjustment plate The positions of the arc mouth and the bayonet are up and down. The set magnetic block can make the metal steel needle screw to be adsorbed. When the rotation of the screw occurs, the steel needle screw attracted by the magnetic block on the surface of the adjustment plate is moved, that is, the steel needle screw The needle screw achieves various penetration depths with the position of the adjustment plate.

3. In the steel needle screw positioning frame that can freely adjust the needle penetration depth, through the stud, when the cam rotates to a certain position, the cam is prevented from loosening, and the stud is rotated and inserted downward into the round mouth of the corresponding position, so that The cam is fixed to strengthen the fixing effect. At the same time, when the position of the cam needs to be adjusted, it can be turned out through the stud to adjust the cam again.

4. In the steel needle screw positioning frame that can freely adjust the needle penetration depth, by setting the fixed rod and the pulley at the bottom, the adjustment plate can be easily slid, that is, the screw rod is easy to slide, and at the same time, the pulley and the wheel mouth are fried The rice cake sliding connection increases the convenience for the operator to move the position of the screw.

Description of drawings

Fig. 1 is the overall structural representation of embodiment 1;

Fig. 2 is the exploded view of the screw adjusting body structure of embodiment 1;

Fig. 3 is the structural representation of the positioning device of embodiment 1;

Fig. 4 is the schematic diagram of the bottom plate structure of embodiment 1;

Fig. 5 is the schematic diagram of structure at A place of embodiment 1;

Fig. 6 is the movable plate structure schematic diagram of embodiment 1;

Fig. 7 is the structural representation of the fixed plate of embodiment 1;

Fig. 8 is an exploded view of the structure of the fastening assembly of Embodiment 1;

Fig. 9 is the schematic structural diagram of the adjustment shape of embodiment 1;

FIG. 10 is a schematic structural diagram of the transposition mechanism in Embodiment 1.

The meanings of each symbol in the figure are:

100. Screw adjustment body;

110, positioning device; 111, bottom plate; 1111, side slide opening; 1112, square groove; 11120, round mouth; 112, movable plate; 1121, slider; 1122, inner groove; 1123, wheel mouth; 1125, protective sheet; 113, fixed plate; 1131, side opening; 1132, slow pressure spring; 114, push plate; 115, connecting rod; 116, fastening assembly; 1161, cam; 1162, rotating rod; ; 1164, piercing; 1165, stud;

120, adjustment device; 121, adjustment plate; 122, magnetic block; 123, screw mandrel; 124, fixed plate; 125, screw mandrel turntable; 126, support plate; 1272, pulley; 1273, middle rod; 1274, rack; 1275, gear; 1276, rotating column; 1277, mounting plate; 1278, transposition motor.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

Example 1

Please refer to Fig. 1-Fig. 10, the purpose of this embodiment is to provide a steel needle screw positioning frame that can freely adjust the needle penetration depth, including a screw adjusting body 100, and the screw adjusting body 100 at least includes:

Positioning device 110, positioning device 110 comprises bottom plate 111, and the surface end of bottom plate 111 is oppositely provided with side sliding opening 1111, and movable plate 112 and fixed plate 113 are symmetrically installed on the surface of bottom plate 111, the bottom of movable plate 112 and fixed plate 113 The side ends are symmetrically provided with sliders 1121, the sliders 1121 are slidingly connected with the side sliding openings 1111, the movable plate 112 is used for sliding on the surface of the bottom plate 111, and the fixed plate 113 is used for fixing through the angles at the ends of the side sliding openings 1111 , the movable plate 112 is provided with a bayonet 1124 opposite to one side of the surface of the fixed plate 113, the bayonet 1124 has a semicircular stable arc structure, and the bayonet 1124 is used for fitting and positioning the cylindrical screw;

When the positioning device 110 of the present invention is used in practice, the bottom slider 1121 of the movable plate 112 is slidably connected to the inside of the side sliding opening 1111, and the bottom sliding block 1121 of the fixed plate 113 and the inside of the side sliding opening 1111 form a fixed corner end. , by placing the steel needle screw at the center of the surface of the opposite bayonet 1124, and moving the movable plate 112 toward the direction of the fixed plate 113, the movable plate 112 can slide in the direction of the fixed plate 113 along with the linear limit position of the slider 1121, That is to say, the steel needle screws of different sizes are clamped and positioned by the bayonet socket 1124 of the pair, and the cylindrical steel needle screw is positioned and fixed through the action of the arc bayonet socket 1124 .

Regulating device 120, regulating device 120 is positioned on the surface of movable plate 112, and regulating device 120 comprises regulating plate 121, and one end of regulating plate 121 is arc mouth shape, and the surface of arc mouth place of regulating plate 121 is equipped with magnetic block 122, and magnetic block 122 is used for absorbing the steel needle screw after positioning. The other end of the adjustment plate 121 is internally threaded with a screw mandrel 123. The bottom of the screw mandrel 123 is movably connected with the surface of the movable plate 112. Screw mandrel turntable 125 is installed, and screw mandrel turntable 125 is used for the rotation of screw mandrel 123, and the bottom of one end of adjustment plate 121 is provided with two support plates 126, and two support plates 126 are hingedly arranged, and the ends of support plates 126 are all A support plate clamp 1260 is installed, and the bottom support plate clamp 1260 is in movable contact with the movable plate 112;

When the adjustment device 120 of the present invention is in use, after the steel needle screw after the positioning is completed, the hinged support plate 126 makes the adjustment plate 121 form a supporting contact effect, and the screw mandrel turntable 125 is rotated to make the screw mandrel 123 rotate. , and then the adjusting plate 121 threaded on the surface is displaced with the direction of rotation of the screw rod 123, and the position of the arc opening at one end of the adjusting plate 121 and the bayonet 1124 is horizontal up and down, and the magnetic block 122 provided can make the metal steel needle screw Adsorption, when the rotation of the screw rod 123 occurs, that is, the steel needle screw attracted by the magnetic block 122 on the surface of the adjustment plate 121 is moved, that is, the steel needle screw realizes various penetration depths with the position of the adjustment plate 121 changing.

In order to solve the problem that the steel needle screw and the bayonet 1124 will not fit or may cause damage, the surface of the bayonet 1124 is equipped with a protective sheet 1125, and the protective sheet 1125 is used to protect the steel needle screw. The protective sheet 1125 installed on the surface of the port 1124, on the one hand, the protective sheet 1125 isolates the steel needle screw from the movable plate 112 and the fixed plate 113, so that when the bayonet 1124 is fixed, the steel needle screw is prevented from being damaged, and at the same time Provides a more stable fit when positioned relative to running.

In order to solve the problem that the movable plate 112 is not convenient for the operator to push and locate, a square groove 1112 is provided on the surface of the movable plate 112, and a push plate 114 is arranged inside the square groove 1112, and a connecting rod 115 is installed on the inner side of the push plate 114, The connecting rod 115 and the movable plate 112 are installed and fixed, and through the installation of the connecting rod 115 and the movable plate 112, the movable plate 112 can be displaced by pushing the push plate 114 inside the square groove 1112, which increases the movement of the movable plate 112. The convenience, that is, the convenience of operation.

In order to solve the problem that excessive force may be generated by manually pushing the push plate 114, a number of round openings 11120 are arranged on the surface of the square groove 1112, and several round openings 11120 form a "V" shape. A fastening assembly 116 is arranged between them, and the fastening assembly 116 includes a cam 1161. A rotating rod 1162 is installed inside one end of the cam 1161. A cam turntable 1163 is arranged on the top of the turn rod 1162. The cam turntable 1163 is used to rotate the cam 1161. One end of 1161 is pressed against the surface of push plate 114. By rotating the rotating rod 1162, the cam 1161 rotates, and the surface of one end of the cam 1161 is in a conical block structure. The other end of 1161 can squeeze and fix the push plate 114, that is, the push plate 114 is activated, so that the movable plate 112 is activated, and through the action of the cam 1161, the position of the push plate 114 can be positioned and fixed to prevent manual operation. When the push plate 114 is pushed, there is a large shaking, which causes problems for the fixing of the steel needle screw.

In order to solve the problem that the cam 1161 may become loose after being positioned, the other end surface of the cam 1161 is provided with a through hole 1164, and the inner thread of the through hole 1164 is connected with a stud 1165, and the stud 1165 is used to be placed through the through hole 1164. It is fixed inside the round mouth 11120. Through the setting of the stud 1165, when the cam 1161 rotates to a certain position, the cam 1161 is prevented from loosening. After the stud 1165 is rotated, it is inserted downward into the inside of the round mouth 11120 at the corresponding position, so that the cam 1161 It is fixed to strengthen the fixing effect. At the same time, when the position of the cam 1161 needs to be adjusted, the stud 1165 can be turned out to adjust the cam 1161 again.

In order to solve the problem that the steel needle screws will be deformed due to the excessive extrusion force generated by the movable plate 112 after relative movement, a side port 1131 is provided at the side end of the fixed plate 113, and a slow pressure is provided inside the side port 1131. The spring 1132 and the pressure-relief spring 1132 are used to reduce the relative extrusion force generated. Through the side opening 1131 and the pressure-relief spring 1132 inside, when the movable plate 112 at one end is extruded in the direction of the fixed plate 113, the After a certain degree, through the action of the pressure-relieving spring 1132, the steel needle screw can be prevented from being deformed due to excessive extrusion force, and the effect of protecting the steel needle screw can be achieved.

In order to solve the problem that the position of the screw mandrel 123 is not convenient for the operator to move, the center of the surface of the movable plate 112 is provided with an inner groove 1122, and the bottom of the screw mandrel 123 is equipped with a fixed plate 124, and the fixed plate 124 is in sliding connection with the inner groove 1122. The set fixed disk 124 is in sliding connection with the inner groove 1122, so that when the size of the steel needle screw is different, the position of the set magnetic block 122 changes with respect to the position of the steel needle screw, so that the steel needle screw cannot be moved by the magnetic block 122. Adsorption means that the screw rod 123 slides in the inner groove 1122, so that the position of the magnetic block 122 can be changed, and the steel needle screws with different sizes and positions can be adsorbed.

In order to solve the problem that the adjustment plate 121 is operated by manpower to produce too heavy force to affect the movement, the surface of the movable plate 112 is oppositely provided with a wheel mouth 1123, and the surface of the movable plate 112 is provided with a transposition mechanism 127. The transposition mechanism 127 includes Relative to the fixed rod 1271 installed, the top of the fixed rod 1271 is installed and fixed with the adjustment plate 121, and the bottom of the fixed rod 1271 is equipped with a pulley 1272. By setting the fixed rod 1271 and the pulley 1272 at the bottom, the adjustment plate 121 can be easily slid , that is, the screw rod 123 is easy to slide, and at the same time, the pulley 1272 is slidably connected to the wheel mouth 1123, which increases the convenience for the operator to move the screw rod 123 position.

In order to solve the problem that the fixed rods 1271 still need a certain amount of manpower input when moving, the fixed rods 1271 are connected with a middle rod 1273, and the center of the surface of the middle rod 1273 is sleeved with a rack 1274, and the bottom surface of the rack 1274 is meshed and connected. There is a gear 1275, the surface of the gear 1275 is provided with a rotating column 1276, and the two ends of the rotating column 1276 are provided with mounting plates 1277, by rotating the rotating column 1276, the gear 1275 can be rotated, that is, the rack 1274 is displaced to one side, that is, The connection between one end of the rack 1274 and the middle rod 1273 can make the fixed rod 1271 move synchronously, and through the action of the gear 1275 and the rack 1274, the driving force caused by human resources is reduced, which saves manpower.

In order to solve the problem that the fixed rod 1271 needs to rotate the rotating column 1276 manually, one end of the mounting plate 1277 is provided with a transposition motor 1278, and the transposition motor 1278 is rotationally connected with the rotary column 1276. By connecting the transposition motor 1278 The power source, that is, the rotation of the rotating column 1276, can make the gear 1275 rotate synchronously, that is, realize automatic rotation displacement adjustment operation, and save labor costs.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and those described in the above-mentioned embodiments and description are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a can freely adjust steel needle screw locating rack of threading needle degree of depth which characterized in that: comprising a screw adjustment body (100), the screw adjustment body (100) comprising at least:

the positioning device (110) comprises a bottom plate (111), the end part of the surface of the bottom plate (111) is provided with side sliding openings (1111) in a split manner, the surface of the bottom plate (111) is symmetrically provided with a movable plate (112) and a fixed plate (113), the side ends of the bottom of the movable plate (112) and the bottom of the fixed plate (113) are symmetrically provided with sliders (1121), the sliders (1121) are in sliding connection with the side sliding openings (1111), the movable plate (112) is used for sliding on the surface of the bottom plate (111), the fixed plate (113) is used for fixing through the angle part of the side sliding openings (1111), one side end of the surface of the movable plate (112) and the fixed plate (113) is provided with a bayonet (1124) in a split manner, the bayonet (1124) is in a semicircular stable arc structure, and the bayonet (1124) is used for attaching and positioning cylindrical screws;

adjusting device (120), adjusting device (120) are located the surface of fly leaf (112), adjusting device (120) include regulating plate (121), a tip of regulating plate (121) is the arc mouth form, the arc mouth department surface mounting of regulating plate (121) has magnetic path (122), magnetic path (122) are used for adsorbing the steel needle screw after the location, the other end internal thread of regulating plate (121) is connected with lead screw (123), the bottom of lead screw (123) with the surface swing joint of fly leaf (112), are close to install lead screw carousel (125) on the bottom surface of lead screw (123), lead screw carousel (125) are used for right the rotation of lead screw (123), the one end bottom of regulating plate (121) is provided with two extension boards (126), two extension board (126) are articulated the setting, the tip of extension board (126) all installs the backup plate clamp (1260), the bottom the backup plate clamp (1260) with fly leaf (112) is movable contact.

2. The steel needle screw positioning frame capable of freely adjusting the needle threading depth according to claim 1, is characterized in that: the surface of the bayonet (1124) is provided with a protective sheet (1125), and the protective sheet (1125) is used for tightly adhering to the steel needle screw in a protective way.

3. The steel needle screw positioning frame capable of freely adjusting the needle threading depth according to claim 1, is characterized in that: the surface of the movable plate (112) is provided with a square groove (1112), a push plate (114) is arranged in the square groove (1112), the inner side of the push plate (114) is relatively provided with a connecting rod (115), and the connecting rod (115) and the movable plate (112) are fixedly installed.

4. The steel needle screw positioning frame capable of freely adjusting the needle threading depth according to claim 3, is characterized in that: be provided with a plurality of round mouth (11120) on the surface of square groove (1112), a plurality of round mouth (11120) form "V" word form, be provided with fastening components (116) between round mouth (11120), fastening components (116) include cam (1161), the one end internally mounted of cam (1161) has bull stick (1162), the top of bull stick (1162) is provided with cam carousel (1163), cam carousel (1163) are used for right the rotation of cam (1161), the tip of cam (1161) with the surface formation extrusion of push pedal (114).

5. The steel needle screw positioning frame capable of freely adjusting the needle threading depth according to claim 4, is characterized in that: a penetrating opening (1164) is formed in the other end surface of the cam (1161), a stud (1165) is connected to the inner thread of the penetrating opening (1164), and the stud (1165) is used for being arranged inside the round opening (11120) through the penetrating opening (1164) to be fixed.

6. The steel needle screw positioning frame capable of freely adjusting the needle threading depth according to claim 1, is characterized in that: side mouth (1131) have been seted up to the side tip loudness of fixed plate (113), the inside of side mouth (1131) is provided with slow compression spring (1132), slow compression spring (1132) are used for reducing the relative extrusion force that produces.

7. The steel needle screw positioning frame capable of freely adjusting the needle threading depth according to claim 1, is characterized in that: an inner groove (1122) is formed in the center of the surface of the movable plate (112), a fixed disc (124) is mounted at the bottom of the screw rod (123), and the fixed disc (124) is in sliding connection with the inner groove (1122).

8. The steel needle screw positioning frame capable of freely adjusting the needle threading depth according to claim 1, is characterized in that: the movable plate (112) is provided with wheel openings (1123) on the surface in a relatively-opened manner, the movable plate (112) is provided with a transposition mechanism (127) on the surface, the transposition mechanism (127) comprises fixed rods (1271) which are relatively installed, the tops of the fixed rods (1271) are fixedly installed on the adjusting plate (121), and pulleys (1272) are installed at the bottoms of the fixed rods (1271).

9. The steel needle screw positioning frame capable of freely adjusting the needle threading depth according to claim 8, is characterized in that: be connected with king-rod (1273) between dead lever (1271), the surperficial center of king-rod (1273) has cup jointed rack (1274), the meshing of the bottom surface of rack (1274) is connected with gear (1275), the surface of gear (1275) is provided with rotary column (1276), the both ends of rotary column (1276) are provided with mounting panel (1277).

10. The steel needle screw positioning frame capable of freely adjusting the needle threading depth according to claim 9, is characterized in that: one end of the mounting plate (1277) is provided with a transposition motor (1278), and the transposition motor (1278) is rotatably connected with the rotary column (1276).

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