Screw hitting clamp with automatic discharging function

Abstract

The utility model discloses an automatic discharging screw driving clamp, which relates to the technical field of screws and comprises a disc. A fixing plate is rotatably arranged at one end of the disc, a fixing frame is fixedly mounted at the other end of the disc, a controller is fixedly connected to the other end of the disc at the top of the fixing frame, a handle is fixedly connected to the other end of the fixing frame, and a motor is fixedly mounted in the fixing frame. An output shaft of the motor extends into the disc and is fixedly connected with the surface of the other end of the fixing plate, a two-way lead screw is rotationally installed in the fixing plate through a bearing, and one side of the fixing plate is fixedly connected with the motor. The arc-shaped grooves with different radians are formed in the surfaces of the two sides of the first clamping plate and the surface of the second clamping plate, the first clamping plate can be rotated and limited, the second clamping plate can be moved and limited, screws with different radiuses can be clamped conveniently, and therefore the application range of the device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to an automatic unloading screw-driving fixture. Background Art

[0002] A screw is a tool that uses the physical and mathematical principles of the circular rotation of an object's inclined surface and friction to gradually fasten objects and machine parts. It is a general term for fasteners and an indispensable industrial necessity in daily life. Screws have important tasks in industry, and as long as there is industry on the earth, the function of screws will always be important. Screws have been a common invention in people's production and life for thousands of years. In terms of application areas, it is the first invention of mankind.

[0003] Screwing originally refers to using a screwdriver or power tool to fix screws on an object to ensure the stability and integrity of parts or products. This is a common operation process in manufacturing and assembly line work, which requires certain skills and patience. Screwing requires the use of clamps to clamp the screws. There are various types of clamps generally used for screws. The selection of screw clamps should be comprehensively considered according to the specific situation to ensure that the processing requirements are met and production efficiency is improved.

[0004] In the process of clamping screws, the clamping surface of the clamp in the prior art is generally a fixed arc surface, so it can only stably clamp screws with a fixed radius, and different screws require different clamps, which increases the cost of use. Therefore, it is necessary to propose an automatic unloading screw driving clamp to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a screw driving fixture with automatic unloading to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] The automatic unloading screw-driving fixture comprises a disc; a fixed plate is rotatably provided at one end of the disc, a fixed frame is fixedly installed at the other end of the disc, a controller is fixedly connected to the other end of the fixed frame, a handle is fixedly connected to the inside of the fixed frame, a motor is fixedly installed inside the fixed frame, the output shaft of the motor extends to the inside of the disc and is fixedly connected to the surface of the other end of the fixed plate, a bidirectional screw is rotatably installed inside the fixed plate through a bearing, a motor is fixedly connected to one side of the fixed plate, the output shaft of the motor extends into the inside of the fixed plate and is fixedly connected to the surface of one side of the bidirectional screw, adjustment blocks are threadedly installed on the periphery of the bidirectional screw near both sides, adjustment plates are provided on both sides of one end of the fixed plate, and the surface of the other end of each adjustment plate is respectively connected to each The surfaces of the adjusting blocks are fixedly connected, and the top and bottom of each adjusting plate are rotatably installed with a connecting plate through a rotating member, and a limiting component for limiting the connecting plate is arranged inside each connecting plate on the inner side of each rotating member, and a first clamping plate is arranged on the inner side of each adjusting plate, and a first arc groove is opened on the surface of the inner side of each first clamping plate, and a second arc groove is opened on the surface of the outer side of each first clamping plate, and the curvature of each first arc groove is greater than the curvature of each second arc groove, and the top and bottom of each first clamping plate are respectively rotatably connected to the surface of each connecting plate, and a bolt is threadedly installed inside each connecting plate, and a limiting rod is inserted at the top and bottom of each first clamping plate, and each limiting rod is rotatably connected to the surface of each bolt through a bearing.

[0008] By providing the first arc groove and the second arc groove of different arcs on both sides of the first clamping plate, screws of different radii can be clamped respectively, thereby expanding the application scope of the device; after removing the bolt and the limit rod, the first clamping plate can be rotated one hundred and eighty degrees along the bottom of the connecting plate, so that the second arc groove can be rotated to the inside, so as to facilitate the use of the second arc groove to clamp the screw; by installing a motor, the bidirectional screw rod can be driven to rotate, and at the same time, the two adjustment blocks can be driven to move inward, and then the two adjustment plates can be driven to approach each other, so as to clamp the screw; after the screw is inserted into the corresponding workpiece, the fixed plate can be driven to rotate by installing a motor, so that the screw can be driven to rotate, so that the screw can be continuously extended into the workpiece; finally, the motor is used to drive the bidirectional screw rod to rotate in the opposite direction, so that the first clamping plate is separated from the screw, and automatic unloading operation is realized, thereby completing the screw driving operation.

[0009] A further improvement of the technical solution of the utility model is that: a second clamping plate is slidably installed inside each adjustment plate, a third arc groove is opened on the inner surface of each second clamping plate, the curvature of each third arc groove is smaller than the curvature of each second arc groove, a plug is plugged into the top and bottom of each adjustment plate, each plug is plugged into the inside of each second clamping plate, a card block is fixedly connected to the top and bottom of each adjustment plate on both sides of each plug, a rubber block is attached to the inner side of each card block, and the two sides of each plug are respectively engaged with each rubber block.

[0010] The above-mentioned technical scheme is adopted. In this scheme, after the connecting plate and the adjusting plate are separated by using the limiting component, the connecting plate can be rotated to one end by installing the rotating member, and then the first clamping plate can be rotated to one end of the adjusting plate, and then the third arc groove on the inner surface of the second clamping plate can be exposed by moving part of the second clamping plate out of the interior of the adjusting plate, and the second clamping plate can be limited by inserting the bolt into the interior of the adjusting plate and the second clamping plate, so as to facilitate the clamping of the screws, thereby expanding the clamping range of screws with different radius sizes, wherein the bolt can be limited by installing the card block, and thus the bolt can be prevented from detaching from the interior of the adjusting plate.

[0011] A further improvement of the technical solution of the utility model is that a plurality of second springs are fixedly mounted on the outer surface of each second clamping plate, and the outer surface of each second spring is respectively fixedly connected to the inner wall of each adjusting plate.

[0012] By adopting the above technical solution, in this solution, the second clamping plate can be automatically pushed out of the interior of the adjustment plate by the elastic force of the second spring itself, so that the second clamping plate can be used easily.

[0013] A further improvement of the technical solution of the utility model is that a plurality of guide blocks are fixedly mounted on the surface of the other end of each second clamping plate, a plurality of guide grooves are opened on the inner wall of each adjustment plate, and each guide block is slidably connected to the inside of each guide groove.

[0014] By adopting the above technical solution, the sliding track of the second clamping plate inside the adjusting plate can be guided and limited by installing the guide block, thereby preventing the second clamping plate from being separated from the inside of the adjusting plate and ensuring the integrity of the device.

[0015] A further improvement of the technical solution of the utility model is that each limiting component includes a limiting block, each limiting block is slidably connected to the inside of each connecting plate through a first spring, each limiting block is respectively embedded in the top and bottom of each adjusting plate, each connecting plate top at the top of each adjusting plate and each connecting plate bottom at the bottom of each adjusting plate are respectively connected with a pull rod, each pull rod extends to the inside of each connecting plate and each first spring, and is respectively fixedly connected to the surface of each limiting block.

[0016] The above-mentioned technical solution is adopted. In this solution, the limit block can be squeezed into the interior of the adjustment plate through the elastic force of the first spring itself, so that the position of the connecting plate at the top and bottom of the adjustment plate can be limited, and then the first clamping plate can be limited, so that the screw can be clamped using the first clamping plate.

[0017] A further improvement of the technical solution of the utility model is that a plurality of balls are rotatably mounted inside the fixing plate, and the surface of one end of some of the balls fits with the surface of the other end of the fixing plate.

[0018] By adopting the above technical solution, a plurality of ball bearings are installed to reduce the contact area between the disc and the fixed plate, and when the motor drives the fixed plate to rotate, the ball bearings can roll along with the fixed plate, thereby reducing the wear between the disc and the fixed plate and extending the service life of the disc and the fixed plate.

[0019] A further improvement of the technical solution of the utility model is that a rotating block is fixedly installed on the surface of the other end of the fixed plate on both sides of the motor, a rotating groove is opened on the surface of one end of the fixed plate outside each ball, and each rotating block is movably connected to the inside of the rotating groove.

[0020] The above technical solution is adopted. In this solution, by providing a rotating block and a rotating groove, the rotating block can rotate inside the rotating groove following the fixed plate, thereby improving the stability of the rotation of the fixed plate.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides an automatic unloading screw-driving clamp, which can limit the first clamping plate by rotating the first clamping plate and using bolts and limiting rods, so that the first arc groove and the second arc groove with different arcs can respectively clamp screws with different radii, thereby expanding the application range of the device.

[0023] 2. The utility model provides an automatic unloading screw driving clamp, which can rotate the connecting plate to one end by installing a rotating part, and the first clamping plate can be rotated to one end of the adjusting plate, and then part of the second clamping plate can be moved out of the interior of the adjusting plate, and the second clamping plate can be limited by a bolt to facilitate clamping of the screw, thereby further expanding the scope of application of the device.

[0024] 3. The utility model provides an automatic unloading screw driving clamp, which can automatically push the second clamping plate out of the interior of the adjusting plate by installing a second spring, preventing the operator from inconveniently moving the second clamping plate out of the interior of the adjusting plate, so as to facilitate the use of the second clamping plate, and can prevent the second clamping plate from detaching from the interior of the adjusting plate by installing a guide block, thereby ensuring the integrity of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a three-dimensional diagram of the utility model;

[0027] Figure 2 A stereogram of the overall second viewing angle of the present invention;

[0028] Figure 3 It is a schematic diagram of the partial structure of the disc section of the utility model;

[0029] Figure 4 It is a schematic diagram of the partial explosion structure of the disc of the utility model from the second viewing angle;

[0030] Figure 5 It is a schematic diagram of the partial structure of the first splint section of the utility model;

[0031] Figure 6 It is a schematic diagram of the partial structure of the cross section of the adjustment plate of the utility model;

[0032] Figure 7 It is a schematic diagram of a partial explosion structure of a fixed plate section of the utility model;

[0033] Figure 8 For the utility model Figure 5 The enlarged structural diagram at A in the middle;

[0034] Fig. 9 For the utility model Figure 6 The enlarged structural diagram at B in the middle;

[0035] Fig.10 It is a schematic diagram of the partial explosion structure of the bolt of the utility model.

[0036] In the figure: 1, disc; 101, ball bearing; 2, handle; 201, fixing frame; 3, fixing plate; 301, rotating block; 4, controller; 5, connecting plate; 501, rotating member; 6, limiting component; 601, limiting block; 602, first spring; 603, pull rod; 7, adjusting plate; 701, adjusting block; 8, first clamping plate; 801, first arc groove; 802, second arc groove; 9, second clamping plate; 901, guide block; 10, motor; 11, electric motor; 12, plug; 13, bidirectional screw rod; 14, second spring; 15, clamping block; 16, bolt; 1601, limiting rod. DETAILED DESCRIPTION

[0037] The present invention is further described in detail below in conjunction with the embodiments:

[0038] Example 1

[0039] like Figure 2 , Figure 5 and Figure 8 As shown, the utility model provides an automatic unloading screw-driving fixture, comprising a disc 1; a fixed plate 3 is rotatably provided at one end of the disc 1, a fixed frame 201 is fixedly installed at the other end of the disc 1, a controller 4 is fixedly connected to the other end of the disc 1 on the top of the fixed frame 201, a handle 2 is fixedly connected to the other end of the fixed frame 201, a motor 11 is fixedly installed inside the fixed frame 201, the output shaft of the motor 11 extends to the inside of the disc 1 and is fixedly connected to the surface of the other end of the fixed plate 3, a bidirectional screw rod 13 is rotatably installed inside the fixed plate 3 through a bearing, a motor 10 is fixedly connected to one side of the fixed plate 3, the output shaft of the motor 10 extends into the inside of the fixed plate 3 and is fixedly connected to the surface of one side of the bidirectional screw rod 13, an adjusting block 701 is threadedly installed on the periphery of the bidirectional screw rod 13 near both sides, an adjusting plate 7 is provided on both sides of one end of the fixed plate 3, and the surface of each adjusting plate 7 at the other end The surfaces are respectively fixedly connected to the surfaces of each adjusting block 701, and the top and bottom of each adjusting plate 7 are rotatably installed with a connecting plate 5 through a rotating member 501. A limiting component 6 for limiting the connecting plate 5 is arranged inside each connecting plate 5 on the inner side of each rotating member 501, and a first clamping plate 8 is arranged on the inner side of each adjusting plate 7. The surface on the inner side of each first clamping plate 8 is provided with a first arc groove 801, and the surface on the outer side of each first clamping plate 8 is provided with a second arc groove 802. The curvature of each first arc groove 801 is greater than the curvature of each second arc groove 802. The top and bottom of each first clamping plate 8 are respectively rotatably connected to the surface of each connecting plate 5, and the interior of each connecting plate 5 is threadedly installed with a bolt 16. A limiting rod 1601 is inserted into the top and bottom of each first clamping plate 8, and each limiting rod 1601 is rotatably connected to the surface of each bolt 16 through a bearing.

[0040] In this embodiment, by providing the first arc groove 801 and the second arc groove 802 of different curvatures on both sides of the first clamping plate 8, screws of different radii can be clamped respectively, thereby expanding the scope of application of the device. After removing the bolt 16 and the limit rod 1601, the first clamping plate 8 can be rotated one hundred and eighty degrees along the bottom of the connecting plate 5, so that the second arc groove 802 can be rotated to the inside, so as to facilitate the use of the second arc groove 802 to clamp the screw; by installing the motor 10, the bidirectional screw rod 13 can be driven to rotate, and at the same time, the two adjustment blocks 701 can be driven to move inward, and then the two adjustment plates 7 can be driven to approach each other, so as to clamp the screw. After the screw is inserted into the corresponding workpiece, the fixing plate 3 can be driven to rotate by installing the motor 11, so that the screw can be driven to rotate, so that the screw is continuously extended into the workpiece. Finally, the motor 10 is used to drive the bidirectional screw rod 13 to rotate in the opposite direction, so that the first clamping plate 8 is separated from the screw, and the automatic unloading operation is realized, thereby completing the screw driving operation.

[0041] Example 2

[0042] like Figure 6 , Figure 7 and Fig. 9 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a second clamping plate 9 is slidably installed inside each adjusting plate 7, and a third arc groove is provided on the inner surface of each second clamping plate 9, and the curvature of each third arc groove is smaller than the curvature of each second arc groove 802. A plug 12 is plugged into the top and bottom of each adjusting plate 7, and each plug 12 is plugged into the inside of each second clamping plate 9. A clamping block 15 is fixedly connected to the top and bottom of each adjusting plate 7 on both sides of each plug 12, and a rubber block is attached to the inner side of each clamping block 15. The two sides of each plug 12 are respectively engaged with each rubber block. A plurality of second springs 14 are fixedly installed on the outer surface of each second clamping plate 9, and the outer surface of each second spring 14 is respectively fixedly connected to the inner wall of each adjusting plate 7. A plurality of guide blocks 901 are fixedly installed on the surface of the other end of each second clamping plate 9, and a plurality of guide grooves are provided on the inner wall of each adjusting plate 7, and each guide block 901 is respectively slidably connected to the inside of each guide groove.

[0043] In this embodiment, after the connecting plate 5 and the adjusting plate 7 are separated by the limiting component 6, the connecting plate 5 can be rotated to one end by installing the rotating member 501, so that the first clamping plate 8 can be rotated to one end of the adjusting plate 7, and then the third arc groove on the inner surface of the second clamping plate 9 can be exposed by moving part of the second clamping plate 9 out of the adjusting plate 7, and the second clamping plate 9 can be limited by inserting the plug 12 into the adjusting plate 7 and the second clamping plate 9, so as to facilitate the clamping of the screw, thereby expanding the clamping range of screws with different radius sizes, wherein the plug 12 can be limited by installing the clamping block 15, so as to prevent the plug 12 from escaping from the inside of the adjusting plate 7; the second clamping plate 9 can be automatically pushed out of the inside of the adjusting plate 7 by the elastic force of the second spring 14 itself, so as to facilitate the use of the second clamping plate 9; the sliding trajectory of the second clamping plate 9 in the adjusting plate 7 can be guided and limited by installing the guide block 901, so as to prevent the second clamping plate 9 from escaping from the inside of the adjusting plate 7, thereby ensuring the integrity of the device.

[0044] Example 3

[0045] like Figure 1 , Figure 5 and Figure 8 As shown, on the basis of Example 2, the utility model provides a technical solution: preferably, each limiting component 6 includes a limiting block 601, each limiting block 601 is respectively slidably connected to the inside of each connecting plate 5 through a first spring 602, each limiting block 601 is respectively embedded with the top and bottom of each adjusting plate 7, and each connecting plate 5 at the top of each adjusting plate 7 and each connecting plate 5 at the bottom of each adjusting plate 7 are respectively connected with a pull rod 603, each pull rod 603 extends to the inside of each connecting plate 5 and each first spring 602, and is respectively fixedly connected to the surface of each limiting block 601.

[0046] In this embodiment, the limit block 601 can be squeezed into the interior of the adjustment plate 7 through the elastic force of the first spring 602 itself, so that the position of the connecting plate 5 at the top and bottom of the adjustment plate 7 can be limited, and then the first clamping plate 8 can be limited, so that the first clamping plate 8 can be used to clamp the screw.

[0047] Example 4

[0048] like Figure 1 , Figure 3 and Figure 4As shown, on the basis of Example 3, the utility model provides a technical solution: preferably, a plurality of balls 101 are installed for rolling inside the fixed plate 3, the surfaces of one end of some of the balls 101 are in contact with the surfaces of the other end of the fixed plate 3, and rotating blocks 301 are fixedly installed on the surfaces of the other ends of the fixed plates 3 on both sides of the motor 11, and a rotating groove is provided on the surface of one end of the fixed plate 3 outside each ball 101, and each rotating block 301 is movably connected to the inside of the rotating groove.

[0049] In this embodiment, the contact area between the disc 1 and the fixed plate 3 can be reduced by installing a plurality of ball bearings 101, and when the motor 11 drives the fixed plate 3 to rotate, the ball bearings 101 can roll along with the fixed plate 3, thereby reducing the wear between the disc 1 and the fixed plate 3 and extending the service life of the disc 1 and the fixed plate 3; by providing a rotating block 301 and a rotating groove, the rotating block 301 can rotate along with the fixed plate 3 inside the rotating groove, thereby improving the stability of the rotation of the fixed plate 3.

[0050] The following is a detailed description of the working principle of the automatic unloading screw driving fixture.

[0051] like Figure 1-Figure 10 As shown, according to the different specific radius sizes of the screws, the operator can use the first arc groove 801 to clamp the screws directly, or remove the bolt 16 and the limiting rod 1601, and then rotate the first clamping plate 8 one hundred and eighty degrees, and then insert the screw into the corresponding workpiece to limit the first clamping plate 8, so that the second arc groove 802 can be used to clamp the screws later. The operator can also pull the pull rod 603 to extract the limiting block 601 from the inside of the adjusting plate 7, and then use the rotating member 501 to rotate the connecting plate 5 and the first clamping plate 8 to one end of the adjusting plate 7, and then use the second spring 14 to move part of the second clamping plate 9 out of the inside of the adjusting plate 7, and then use The bolt 12 limits the second clamping plate 9, making it easier to use the second clamping plate 9 to clamp the screw. After the adjustment is completed, the operator can use the motor 10 to drive the bidirectional screw 13 to rotate, and at the same time drive the two adjustment blocks 701 and the two adjustment plates 7 to approach each other, so that the first clamping plate 8 or the second clamping plate 9 can be used to clamp the screw, and then the screw is inserted into the specified workpiece, and then the motor 11 is used to drive the fixed plate 3 to rotate, so that the screw can be automatically rotated into the workpiece, and finally the motor 10 is used to drive the bidirectional screw 13 to rotate in the opposite direction, so that the first clamping plate 8 is separated from the screw, realizing automatic unloading operation, thereby completing the screw driving operation.

[0052] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An automatic unloading screw-driving fixture, comprising a disc (1); characterized in that: A fixing plate (3) is rotatably provided at one end of the disc (1), a fixing frame (201) is fixedly installed at the other end of the disc (1), a controller (4) is fixedly connected to the other end of the disc (1) at the top of the fixing frame (201), a handle (2) is fixedly connected to the other end of the fixing frame (201), a motor (11) is fixedly installed inside the fixing frame (201), an output shaft of the motor (11) extends into the inside of the disc (1) and is fixedly connected to the surface of the other end of the fixing plate (3), A bidirectional screw rod (13) is rotatably mounted inside the fixing plate (3) via a bearing, a motor (10) is fixedly connected to one side of the fixing plate (3), an output shaft of the motor (10) extends into the inside of the fixing plate (3) and is fixedly connected to a surface of one side of the bidirectional screw rod (13), an adjustment block (701) is threadedly mounted on the periphery of the bidirectional screw rod (13) near both sides, an adjustment plate (7) is arranged on both sides of one end of the fixing plate (3), and the surface of the other end of each adjustment plate (7) is respectively connected to each adjustment block (701). 01), the top and bottom of each adjusting plate (7) are rotatably mounted with a connecting plate (5) through a rotating member (501), each connecting plate (5) inside the rotating member (501) is provided with a limiting component (6) for limiting the position of the connecting plate (5), the inner side of each adjusting plate (7) is provided with a first clamping plate (8), the inner surface of each first clamping plate (8) is provided with a first arc groove (801), and the outer surface of each first clamping plate (8) is provided with a second arc groove (801). Arc groove (802), the curvature of each of the first arc grooves (801) is greater than the curvature of each of the second arc grooves (802), the top and bottom of each of the first clamping plates (8) are respectively rotatably connected to the surface of each of the connecting plates (5), the interior of each of the connecting plates (5) is threadedly installed with a bolt (16), the top and bottom of each of the first clamping plates (8) are inserted with a limiting rod (1601), and each of the limiting rods (1601) is respectively rotatably connected to the surface of each of the bolts (16) through a bearing.

2. The automatic unloading screw driving fixture according to claim 1 is characterized in that: A second clamping plate (9) is slidably mounted inside each of the adjustment plates (7), and a third arc-shaped groove is provided on the inner surface of each of the second clamping plates (9), and the curvature of each of the third arc-shaped grooves is smaller than the curvature of each of the second arc-shaped grooves (802). A plug (12) is plugged into the top and bottom of each of the adjustment plates (7), and each of the plugs (12) is plugged into the inside of each of the second clamping plates (9). A clamping block (15) is fixedly connected to the top and bottom of each of the adjustment plates (7) on both sides of each of the plugs (12), and a rubber block is attached to the inner side of each of the clamping blocks (15), and the two sides of each of the plugs (12) are respectively engaged with each of the rubber blocks.

3. The automatic unloading screw driving fixture according to claim 2 is characterized in that: A plurality of second springs (14) are fixedly mounted on the outer surface of each second clamping plate (9), and the outer surface of each second spring (14) is fixedly connected to the inner wall of each adjustment plate (7).

4. The automatic unloading screw driving fixture according to claim 3 is characterized in that: A plurality of guide blocks (901) are fixedly mounted on the surface of the other end of each second clamping plate (9), a plurality of guide grooves are opened on the inner wall of each adjustment plate (7), and each guide block (901) is slidably connected to the inside of each guide groove.

5. The automatic unloading screw driving fixture according to claim 1, characterized in that: Each of the limiting components (6) includes a limiting block (601), each of the limiting blocks (601) is slidably connected to the inside of each of the connecting plates (5) via a first spring (602), each of the limiting blocks (601) is respectively engaged with the top and bottom of the inside of each of the adjusting plates (7), and a pull rod (603) is respectively connected to the top of each of the connecting plates (5) at the top of each of the adjusting plates (7) and the bottom of each of the connecting plates (5) at the bottom of each of the adjusting plates (7), and each of the pull rods (603) extends to the inside of each of the connecting plates (5) and each of the first springs (602), and is respectively fixedly connected to the surface of each of the limiting blocks (601).

6. The automatic unloading screw driving fixture according to claim 1, characterized in that: A plurality of balls (101) are rotatably mounted inside the fixing plate (3), and the surfaces of one end of some of the balls (101) are in contact with the surfaces of the other end of the fixing plate (3).

7. The automatic unloading screw driving fixture according to claim 6, characterized in that: A rotating block (301) is fixedly mounted on the surface of the other end of the fixed plate (3) on both sides of the motor (11), and a rotating groove is provided on the surface of one end of the fixed plate (3) outside each ball (101), and each rotating block (301) is movably connected to the inside of the rotating groove.

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