Automatic screw driving machine

Abstract

The utility model discloses an automatic screw driving machine, comprising a mounting plate, a base plate, a linear guide rail, an upper slider, a lower slider, an electric screwdriver, a first lifting cylinder, a second lifting cylinder, a vacuum suction pipe, a rotating bracket, a rotating driving member, a rotating block and a nozzle assembly, wherein the base plate is connected to the bottom of the mounting plate, the linear guide rail is arranged on the mounting plate in a vertical direction, the upper slider and the lower slider are respectively slidably arranged on the linear guide rail, the upper slider and the lower slider are movably connected through a movable pull rod, a spring is arranged between the upper slider and the lower slider, the first lifting cylinder is arranged on the mounting plate, the second lifting cylinder and the electric screwdriver are respectively arranged on the upper slider, the piston shaft of the second lifting cylinder is connected to the piston shaft of the first lifting cylinder, the vacuum suction pipe is arranged on the lower slider, the screwdriver head of the electric screwdriver penetrates the vacuum suction pipe, the rotating bracket is arranged on the base plate, an inclined nail feeding channel is arranged in the rotating bracket, and the rotating driving member is arranged on the rotating bracket and connected to the rotating block. The automatic screw driving machine has strong versatility.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic processing equipment, in particular to an automatic screw driving machine. Background Art

[0002] Automatic screw driving machines are widely used in many physical product manufacturing industries and are in great demand.

[0003] Most of the existing automatic screw driving machines are only suitable for shorter screws. When they are used to drive longer screws (length greater than or equal to 30mm), sometimes the nails will get stuck, which seriously affects the working stability of the equipment, so that the application of automatic screw driving machines is limited. In addition, in actual processing, the existing automatic screw driving machines cannot adapt well to the deep countersinking conditions. When the countersink on the workpiece is deep, the clamping nozzle assembly of the automatic screw driving machine will collide with the workpiece, so that the application of the automatic screw driving machine is further limited. Utility Model Content

[0004] The technical problem solved by the utility model is to provide an automatic screw driving machine with good versatility.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: an automatic screw driving machine, including a mounting plate, a base plate, a linear guide, an upper slider, a lower slider, an electric screwdriver, a first lifting cylinder, a second lifting cylinder, a vacuum suction tube, a rotating bracket, a rotating drive member, a rotating block and a nozzle assembly, the base plate is connected to the bottom of the mounting plate, the linear guide is arranged on the mounting plate in the vertical direction, the upper slider and the lower slider are respectively slidably arranged on the linear guide, the upper slider and the lower slider are movably connected by a movable pull rod, a spring is arranged between the upper slider and the lower slider, the first lifting cylinder is installed on the mounting plate, the second lifting cylinder and the electric screwdriver are respectively installed on the upper slider, and the second lifting cylinder The piston shaft of the cylinder is connected to the piston shaft of the first lifting cylinder, the vacuum suction pipe is arranged on the lower slider, the screwdriver bit of the electric screwdriver is inserted into the vacuum suction pipe, the rotating bracket is arranged on the bottom plate, and an inclined nail feeding channel is arranged in the rotating bracket, the rotating driving member is arranged on the rotating bracket and connected to the rotating block, the rotating block can be rotatably installed on the rotating bracket, and an aisle is arranged on the rotating block, the inner diameter of the aisle is larger than the outer diameter of the vacuum suction pipe, the nozzle assembly is arranged on the rotating block and corresponds to the aisle, when the rotating driving member is in a non-extended state, the aisle corresponds to the vacuum suction pipe, and when the rotating driving member is in an extended state, the aisle is docked with the nail feeding channel.

[0006] In one embodiment, the rotating bracket has two side plates arranged opposite to each other, the upper part of the rotating block is located between the two side plates and is connected to the two side plates through a rotating shaft, at least one of the side plates has an arc groove arranged around the rotating shaft, and the rotating block is provided with a guide protrusion, which is located in the arc groove and can slide along the arc groove.

[0007] In one embodiment, the jaw assembly includes a linear drive, a guide plate and two rotating jaws, the two rotating jaws are arranged opposite to each other, one end of the rotating jaw is rotatably connected to the rotating block, and a limit platform for the head of a limit screw is provided on the side where the two rotating jaws are close to each other. The limit platform is arc-shaped and is arranged close to the other end of the rotating jaw. The linear drive is arranged on the rotating block and connected to the guide plate. The guide plate is provided with a guide inclined groove for guiding the rotation of the rotating jaws, and the rotating jaw is provided with a guide column extending into the guide inclined groove.

[0008] In one embodiment, two guiding inclined grooves are provided on the guiding plate, the two guiding inclined grooves correspond to the two rotating clamps one by one, and the two guiding inclined grooves are arranged in an eight-shaped shape.

[0009] In one embodiment, a guide groove is provided on the guide plate, the length direction of the guide groove is arranged along the driving direction of the linear drive member, and a guide column extending into the guide groove is provided on the rotating block.

[0010] In one embodiment, a vacuum generator connected to the vacuum suction pipe is also included.

[0011] In one embodiment, the spring is sleeved on the movable pull rod.

[0012] In one embodiment, the top end of the movable pull rod is fixedly connected to the upper slider, the bottom end of the movable pull rod is provided with a limit head, and the bottom surface of the lower slider is provided with a countersunk hole for accommodating the limit head.

[0013] In one embodiment, the linear drive member is a cylinder or an electric push rod.

[0014] In one embodiment, the rotation driving member is a cylinder or an electric push rod.

[0015] The beneficial effects of the utility model are as follows: the automatic screw driving machine has a vacuum suction tube, which can effectively adsorb the head of the screw by vacuum adsorption, so that the automatic screw driving machine can be effectively applied to countersunk holes with deeper depths, which is beneficial to improving the versatility of the automatic screw driving machine; the provision of a rotating block and a rotating drive member can allow the aisle on the rotating block to be docked with the nail feeding channel, so that the long screws transported by the nail feeding channel can smoothly enter the aisle and be held by the clamping nozzle assembly, effectively improving the jamming phenomenon of the long screws, which is beneficial to improving the working stability and versatility of the automatic screw driving machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 The structure diagram of the automatic screw driving machine of the first embodiment of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 2 The structure diagram of the automatic screw driving machine of the first embodiment of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] Description of Figure Numbers:

[0021] 1. Mounting plate;

[0022] 2. Bottom plate;

[0023] 3. Linear guide;

[0024] 4. Upper slider;

[0025] 5. Lower slider;

[0026] 6. Electric screwdriver; 61. Screwdriver bit;

[0027] 7. The first lifting cylinder;

[0028] 8. Second lifting cylinder;

[0029] 9. Vacuum straw;

[0030] 10. Rotating bracket; 101. Nail feeding channel; 102. Side plate; 103. Arc groove;

[0031] 20. Rotating driving member;

[0032] 30. Rotating block; 301. Guide column;

[0033] 40. Clamping nozzle assembly; 401. Linear drive member; 402. Guide plate; 4021. Guide chute; 4022. Guide groove; 403. Rotating clamping jaw; 4031. Guide column;

[0034] 50. Movable pull rod;

[0035] 60. Spring. DETAILED DESCRIPTION

[0036] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0040] In addition, if the meaning of "and / or" appears in the full text is to include three parallel solutions, taking "and / or" as an example, it includes solutions, or solutions, or solutions that are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0041] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] Embodiment 1

[0043] Please refer to Figures 1 to 3 , Embodiment 1 of the present utility model is: an automatic screw driving machine, comprising a mounting plate 1, a base plate 2, a linear guide 3, an upper slider 4, a lower slider 5, an electric screwdriver 6, a first lifting cylinder 7, a second lifting cylinder 8, a vacuum suction pipe 9, a rotating bracket 10, a rotating driving member 20, a rotating block 30 and a nozzle assembly 40, wherein the base plate 2 is connected to the bottom of the mounting plate 1, the linear guide 3 is arranged on the mounting plate 1 in a vertical direction, the upper slider 4 and the lower slider 5 are respectively slidably arranged on the linear guide 3, the linear guide 3 is arranged in a vertical direction, the upper slider 4 and the lower slider 5 are movably connected by a movable pull rod 50, that is, the distance between the upper slider 4 and the lower slider 5 is not fixed, a spring 60 is arranged between the upper slider 4 and the lower slider 5, the first lifting cylinder 7 is installed on the mounting plate 1, the second lifting cylinder 8 and the electric screwdriver 6 are respectively installed on the upper slider 4 ... electric screwdriver 6 are installed on the upper slider The piston shaft of the second lifting cylinder 8 is connected to the piston shaft of the first lifting cylinder 7, the vacuum pipette 9 is arranged on the lower slider 5, the screwdriver head 61 of the electric screwdriver 6 penetrates into the vacuum pipette 9, the rotating bracket 10 is arranged on the bottom plate 2, and an inclined nail feeding channel 101 is provided in the rotating bracket 10, the rotating driving member 20 is arranged on the rotating bracket 10 and connected to the rotating block 30, the rotating block 30 can be rotatably mounted on the rotating bracket 10, and an aisle is provided on the rotating block 30, the inner diameter of the aisle is larger than the outer diameter of the vacuum pipette 9, the nozzle assembly 40 is arranged on the rotating block 30 and corresponds to the aisle, when the rotating driving member 20 is in a non-extended state, the aisle corresponds to the vacuum pipette 9, and when the rotating driving member 20 is in an extended state, the aisle is docked with the nail feeding channel 101, and the rotating driving member 20 is a cylinder or an electric push rod.

[0044] The spring 60 is sleeved on the movable pull rod 50, the top end of the movable pull rod 50 is fixedly connected to the upper slider 4, the bottom end of the movable pull rod 50 is provided with a limit head, and the bottom surface of the lower slider 5 is provided with a countersunk hole for accommodating the limit head; the limit head can be a nut, etc.

[0045] The automatic screw driving machine further comprises a vacuum generator (not shown in the figure) connected to the vacuum suction pipe 9 . The vacuum generator can be arranged on the mounting plate 1 or independently installed away from the mounting plate 1 .

[0046] The rotating bracket 10 has two side plates 102 arranged opposite to each other. The upper part of the rotating block 30 is located between the two side plates 102 and is connected to the two side plates 102 through a rotating shaft. At least one of the side plates 102 has an arc groove 103 arranged around the rotating shaft. The rotating block 30 is provided with a guide protrusion, which is located in the arc groove 103 and can slide along the arc groove 103. The cooperation between the guide protrusion and the arc groove 103 can make the rotation of the rotating block 30 smoother, which is beneficial to improve the jamming phenomenon of the rotating block 30, thereby greatly improving the working stability of the automatic screw driving machine.

[0047] In this embodiment, the clamping nozzle assembly 40 includes a linear driving member 401, a guide plate 402 and two rotating jaws 403. The two rotating jaws 403 are arranged opposite to each other, one end of the rotating jaw 403 is rotatably connected to the rotating block 30, and a limit platform for the head of a limit screw is provided on the side where the two rotating jaws 403 are close to each other. The limit platform is arranged close to the other end of the rotating jaw 403. The linear driving member 401 is arranged on the rotating block 30 and connected to the guide plate 402. The guide plate 402 is provided with a guiding inclined groove 4021 for guiding the rotation of the rotating jaw 403. The rotating jaw 403 is provided with a guide column 4031 extending into the guiding inclined groove 4021. The linear driving member 401 is a cylinder or an electric push rod.

[0048] The guide plate 402 is provided with two guiding bevel grooves 4021, and the two guiding bevel grooves 4021 correspond to the two rotating jaws 403 one by one, and the two guiding bevel grooves 4021 are arranged in an eight-shaped shape. The guide plate 402 guides the rotating jaws 403 to rotate through the guiding bevel grooves 4021 so that the two rotating jaws 403 can be opened and closed. When the two rotating jaws 403 are closed, the screws in the aisle cannot pass through the clamping nozzle assembly 40. When the two rotating jaws 403 are opened, the vacuum suction tube 9 drives the screws adsorbed in the aisle to extend out of the clamping nozzle assembly 40.

[0049] In order to make the linear drive member 401 work more smoothly, optionally, a guide groove 4022 is provided on the guide plate 402, and the length direction of the guide groove 4022 is arranged along the driving direction of the linear drive member 401, and a guide column 301 extending into the guide groove 4022 is provided on the rotating block 30.

[0050] Optionally, the limiting platform is arc-shaped, and the two rotating jaws 403 are closed to form an annular support platform, and the head of the screw sent into the aisle is supported on the annular support platform, and the tail passes through the hollow area of ​​the annular support platform.

[0051] The working process of the automatic screw driving machine is briefly described as follows: before feeding the nail, the linear driving member 401 drives the two rotating jaws 403 to close, and the rotating driving member 20 drives the rotating block 30 to rotate, so that the aisle in the rotating block 30 is connected with the nail feeding channel 101 on the rotating bracket 10, and the external nail feeding machine sends the screw into the aisle through the nail feeding channel 101. At this time, the head of the screw is supported by the annular support platform, and the tail of the screw penetrates into the hollow area of ​​the annular support platform; then the rotating driving member 20 drives the rotating block 30 to reset, so that the central axis of the aisle on the rotating block 30 is in line with the central axis of the vacuum suction pipe 9, and then the first lifting cylinder 7 drives the second lifting cylinder 8 , the upper slider 4, the lower slider 5 and the vacuum pipette 9 slide toward the direction close to the rotating block 30, the end of the vacuum pipette 9 away from the lower slider 5 extends into the aisle and hits the edge of the head of the screw in the aisle, the vacuum pipette 9 absorbs the head of the screw, then, the linear drive 401 drives the two rotating jaws 403 to open, the first lifting cylinder 7 continues to move, so that the end of the vacuum pipette 9 away from the lower slider 5 extends out of the clamping nozzle assembly 40 until it reaches the preset position, and the first lifting cylinder 7 stops moving; the second lifting cylinder 8 drives the upper slider 4 to drive the electric screwdriver 6 to continue to move toward the rotating block 30, at the same time, the screwdriver head 61 rotates to tighten the screw.

[0052] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. Automatic screw driving machine, characterized by: It includes a mounting plate, a bottom plate, a linear guide, an upper slider, a lower slider, an electric screwdriver, a first lifting cylinder, a second lifting cylinder, a vacuum suction tube, a rotating bracket, a rotating drive member, a rotating block and a nozzle assembly, wherein the bottom plate is connected to the bottom of the mounting plate, the linear guide is arranged on the mounting plate in a vertical direction, the upper slider and the lower slider are respectively slidably arranged on the linear guide, the upper slider is movably connected to the lower slider through a movable pull rod, a spring is arranged between the upper slider and the lower slider, the first lifting cylinder is mounted on the mounting plate, the second lifting cylinder and the electric screwdriver are respectively mounted on the upper slider, the piston shaft of the second lifting cylinder is connected to the movable pull rod of the first lifting cylinder The plug shaft is connected, the vacuum suction pipe is arranged on the lower slider, the screwdriver head of the electric screwdriver is inserted into the vacuum suction pipe, the rotating bracket is arranged on the bottom plate, and an inclined nail feeding channel is arranged in the rotating bracket. The rotating drive member is arranged on the rotating bracket and connected to the rotating block. The rotating block can be rotatably installed on the rotating bracket. An aisle is provided on the rotating block, and the inner diameter of the aisle is larger than the outer diameter of the vacuum suction pipe. The nozzle assembly is arranged on the rotating block and corresponds to the aisle. When the rotating drive member is in a non-extended state, the aisle corresponds to the vacuum suction pipe, and when the rotating drive member is in an extended state, the aisle is docked with the nail feeding channel.

2. The automatic screw driving machine according to claim 1, characterized in that: The rotating bracket has two side plates arranged opposite to each other, the upper part of the rotating block is located between the two side plates and connected to the two side plates through a rotating shaft, at least one of the side plates has an arc groove arranged around the rotating shaft, and the rotating block is provided with a guide protrusion, which is located in the arc groove and can slide along the arc groove.

3. The automatic screw driving machine according to claim 1, characterized in that: The clamping nozzle assembly includes a linear driving member, a guide plate and two rotating jaws, the two rotating jaws are arranged opposite to each other, one end of the rotating jaw is rotatably connected to the rotating block, a limit platform for the head of a limit screw is provided on the side where the two rotating jaws are close to each other, the limit platform is arc-shaped, and the limit platform is arranged close to the other end of the rotating jaw, the linear driving member is arranged on the rotating block and connected to the guide plate, the guide plate is provided with a guiding inclined groove for guiding the rotation of the rotating jaws, and the rotating jaw is provided with a guide column extending into the guiding inclined groove.

4. The automatic screw driving machine according to claim 3, characterized in that: The guide plate is provided with two guide bevel grooves, the two guide bevel grooves correspond to the two rotating clamps one by one, and the two guide bevel grooves are arranged in an eight-shaped shape.

5. The automatic screw driving machine according to claim 3, characterized in that: The guide plate is provided with a guide groove, the length direction of the guide groove is arranged along the driving direction of the linear drive member, and the rotating block is provided with a guide column extending into the guide groove.

6. The automatic screw driving machine according to claim 5, characterized in that: The linear drive member is a cylinder or an electric push rod.

7. The automatic screw driving machine according to claim 1, characterized in that: Also included is a vacuum generator communicated with the vacuum suction pipe.

8. The automatic screw driving machine according to claim 1, characterized in that: The spring is sleeved on the movable pull rod.

9. The automatic screw driving machine according to claim 1, characterized in that: The top end of the movable pull rod is fixedly connected to the upper slider, the bottom end of the movable pull rod is provided with a limit head, and the bottom surface of the lower slider is provided with a countersunk hole for accommodating the limit head.

10. The automatic screw driving machine according to claim 1, characterized in that: The rotating driving member is a cylinder or an electric push rod.

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