A screw machine locking assembly

Abstract

The invention discloses a screw machine locking assembly, comprising a mounting frame, a screwdriver head and a first driving device for driving the screwdriver head to rotate; the first driving device has a power output shaft, and the screwdriver head is detachably connected to the power output shaft through a quick release assembly; a locking head shell which is hollow and located at the periphery of the screwdriver head is also installed on the mounting frame; a hollow movable cylinder is slidably arranged in the locking head shell; a suction nozzle which is connected to the inner cavity of the movable cylinder is detachably connected to the bottom end of the movable cylinder; a connecting assembly is also arranged between the movable cylinder and the screwdriver head, and the connecting assembly enables the movable cylinder to move up and down and rotate axially relative to the screwdriver head, and the connecting assembly can block the connection between the blowing cavity and the inner cavity of the movable cylinder. The invention can quickly adjust the height position of the suction nozzle relative to the screwdriver head, and can also realize the quick release work between the suction nozzle and the movable cylinder and the quick release work between the screwdriver head and the first driving device, and has the advantages of ingenious structure, convenient operation and stable operation.

Description

Technical Field

[0001] The invention relates to the technical field of screw machines, in particular to a screw machine locking assembly. Background Art

[0002] At present, automatic screw machines are mostly used to fasten screws. The automatic screw machines usually include a locking component and a robotic arm. The locking component includes a screwdriver head for rotating the screw and a suction nozzle arranged on the periphery of the screwdriver head and used to absorb the screw. The robotic arm is used to move the locking component to achieve the movement of the screw. When used, the screw is first absorbed by the locking component, and the screw is moved to a specific position by the robotic arm. Finally, the screw is rotated by the locking component to complete the locking work.

[0003] Although the existing automatic screw machines can greatly improve the efficiency and quality of screwing work, the following problems still exist: 1. In the screwing assembly, the height position of the suction nozzle relative to the screwdriver head is mostly fixed. If the suction nozzle is to be able to absorb the screwdriver head better, the bottom of the suction nozzle will be as flush with the screwdriver head as possible. In this way, when the screwdriver head is turned to screw the screw, the bottom of the suction nozzle is very easy to scratch the surface of the screw. 2. Different types of suction nozzles will be replaced for different types of screws, but in the existing screwing assemblies, the suction nozzles are mostly designed as an integrated design with the screwing head. To replace the suction nozzle, the entire screwing head needs to be disassembled and replaced, which is bound to increase the production cost of the enterprise. 3. Different types of screwdriver heads will be replaced for different types of screws. At the same time, the screwdriver head is a consumable part and should be replaced regularly after a long period of screwing work with the screw. However, in the existing screwing assemblies, the screwdriver head cannot be quickly assembled and disassembled, which is bound to affect production efficiency. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned problems of the prior art and provide a screw machine locking assembly, which can quickly adjust the height position of the suction nozzle relative to the screwdriver head during operation, so that the screw can be adsorbed with high quality and locked with high quality. In addition, the present invention can also realize the quick release work between the suction nozzle and the movable cylinder and the quick release work between the screwdriver head and the first driving device, and has the advantages of ingenious structure, convenient operation and stable operation.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] A screw machine locking assembly comprises a mounting frame, a screwdriver head and a first driving device for driving the screwdriver head to rotate, wherein the first driving device is connected to the mounting frame;

[0007] The first driving device has a power output shaft, and the screwdriver head is detachably connected to the power output shaft through a quick release assembly;

[0008] The mounting frame is also provided with a locking head housing which is hollow and located at the periphery of the screwdriver head. An adjusting component is provided through the locking head housing. The adjusting component can act on the quick-release component to cause the screwdriver head to be separated from the power output shaft or locked on the power output shaft.

[0009] A hollow movable cylinder is slidably arranged in the lock head shell, and the bottom end of the lock head shell has a lower opening that can prevent the movable cylinder from being separated from the inner cavity of the lock head shell. The movable cylinder divides the inner cavity of the lock head shell into a blowing cavity and an air suction cavity that are independent of each other. The blowing cavity is located above the movable cylinder, and the air suction cavity is located on the periphery of the movable cylinder, and the air suction cavity can be connected with the inner cavity of the movable cylinder.

[0010] The bottom end of the movable cylinder is detachably connected with a suction nozzle which is in communication with the inner cavity of the movable cylinder. The suction nozzle is located at the periphery of the screwdriver head and can pass through the lower opening.

[0011] A connecting assembly is also provided between the movable cylinder and the screwdriver head, and the connecting assembly enables the movable cylinder to move up and down and rotate axially relative to the screwdriver head, and the connecting assembly can block the communication between the blowing cavity and the inner cavity of the movable cylinder;

[0012] When the movable cylinder moves down to the extreme position in the locking head housing, the bottom end of the suction nozzle is flush with the bottom end of the screwdriver head or the bottom end of the suction nozzle is located below the bottom end of the screwdriver head;

[0013] A first elastic member is also arranged in the locking head housing, and the first elastic member acts on the movable cylinder so that: the bottom end of the suction nozzle is located above the bottom end of the screwdriver head;

[0014] A first vent hole connected to the blowing cavity is provided on the outer shell of the locking head, and a second vent hole connected to the suction cavity is also provided on the outer shell of the locking head.

[0015] In the present invention, the mounting frame is used to carry the first driving device and the locking head housing; the first driving device is used to drive the screwdriver head to rotate; the screwdriver head is used to lock the screw; the suction nozzle is used to absorb the screw. When in use, the first vent hole is connected to a gas generator for injecting gas into the blowing cavity to depress the movable cylinder; the second vent hole is connected to a vacuum generator for generating negative pressure in the suction cavity.

[0016] When the present invention is in the zero position state, that is, when the gas generator and the vacuum generator are not started, the movable cylinder is under the action of the first elastic member, and the bottom end of the suction nozzle is located above the bottom end of the screwdriver head. When it is necessary to adsorb the screw, the gas generator is started to inject gas into the blowing cavity through the first vent hole to press the movable cylinder until the bottom end of the suction nozzle is flush with the screwdriver head. At the same time, the vacuum generator is started to generate negative pressure in the suction cavity and the inner cavity of the movable cylinder connected to the suction cavity and the suction nozzle. In this way, the screw can be adsorbed on the bottom of the screwdriver head. When it is necessary to lock the screw, the gas injection work of the gas generator is stopped, and the movable cylinder is restored under the action of the first elastic member so that the bottom end of the suction nozzle is again located above the bottom end of the screwdriver head, and then the first driving device is started to drive the screwdriver head to rotate to lock the screw.

[0017] The present invention can form a blowing cavity and an air suction cavity independently of each other in the outer shell of the locking head by setting the movable cylinder. Negative pressure can be formed in the suction nozzle through the suction cavity to adsorb the screw. The blowing cavity can be used to move the movable cylinder to adjust the height position of the suction nozzle relative to the screwdriver head. In this way, high-quality adsorption and locking work can be performed on the screw.

[0018] Among them, by setting the adjustment component and the quick-release component, the fast locking and quick separation between the screwdriver head and the power output shaft can be achieved, and then the fast assembly and disassembly of the screwdriver head can be achieved.

[0019] Furthermore, a connecting blind hole is provided at the bottom end of the power output shaft, mounting holes communicating with the connecting blind hole are provided on both sides of the power output shaft, and locking balls are rollingly provided in the mounting holes;

[0020] The top of the screwdriver head is provided with a connecting column which can be inserted into the connecting blind hole, and both sides of the connecting column are provided with concave locking grooves, and the two locking grooves can be connected with the two mounting holes respectively;

[0021] The quick-release assembly includes a locking sleeve, which is sleeved on the power output shaft and can move up and down relative to the power output shaft. The inner surface of the locking sleeve has a clamping ring surface and a loosening ring surface with an inner diameter larger than the clamping ring surface. The clamping ring surface and the loosening ring surface are connected from top to bottom. When the clamping ring surface faces the locking ball, the clamping ring surface can clamp the locking ball in the installation hole and make the locking ball partly located in the connecting blind hole. When the loosening ring surface faces the locking ball, the locking ball can be separated from the area covered by the connecting blind hole.

[0022] A limiting ring is arranged at the bottom end of the power output shaft to prevent the locking sleeve from detaching from the power output shaft. A second elastic member is also arranged on the power output shaft, and the second elastic member acts on the locking sleeve so that: the locking sleeve abuts against the limiting ring, and the clamping ring surface faces the locking ball.

[0023] When the screwdriver head needs to be assembled, the locking sleeve is first moved up until the loosening annular surface faces the locking ball. At this time, the screwdriver head can be moved up to place the connecting column into the connecting blind hole, and then the locking sleeve is loosened to reset it to the clamping annular surface facing the locking ball under the action of the second elastic member. At this time, the locking ball is clamped in the installation hole under the action of the clamping annular surface and partially placed in the locking groove to lock the screwdriver head. In this way, the quick disassembly of the screwdriver head is completed. When the screwdriver head needs to be disassembled, the locking sleeve is moved up so that the loosening annular surface faces the locking ball. In this way, the screwdriver head can be pulled down to complete the disassembly work.

[0024] Furthermore, the outer surface of the locking sleeve has a tapered surface, which is larger at the top and smaller at the bottom;

[0025] The adjustment assembly includes an adjustment rod that passes through the lock head housing, the end of the adjustment rod located in the inner cavity of the lock head housing is provided with a conical head that can cooperate with the conical surface, and the end of the adjustment rod located outside the lock head housing is provided with a limit head;

[0026] A third elastic member is also provided on the adjusting rod, and two ends of the third elastic member act on the limit head and the locking head shell respectively, so that: the conical head is separated from the conical surface;

[0027] When the conical head moves to the extreme position in the direction close to the conical surface, the loosening annular surface can face the locking ball.

[0028] When the invention is in the zero position, the conical head is separated from the conical surface under the action of the third elastic member. When the locking sleeve needs to be moved upward, the adjusting rod is pushed in the direction of compressing the second elastic member. At this time, the conical head gradually approaches the conical surface. As the conical head moves, the locking sleeve will gradually move upward through the cooperation between the conical head and the conical surface. When the annular surface is released and faces the locking ball, the screwdriver head can be easily removed.

[0029] In order to achieve the blocking work of the connection component to block the connection between the blowing cavity and the inner cavity of the movable cylinder, and to promote the connection between the suction cavity and the inner cavity of the movable cylinder, further, the inner cavity of the movable cylinder includes a connecting cavity and an adsorption cavity connected to the connecting cavity and located below the connecting cavity, and the inner diameter of the adsorption cavity is smaller than the inner diameter of the connecting cavity;

[0030] The connecting assembly comprises a first bearing, a vent tube and a second bearing arranged in sequence from top to bottom, the first bearing, the second bearing and the vent tube are all movably sleeved on the screwdriver head, the outer ring of the first bearing is connected to the movable tube, the outer ring of the second bearing is sleeved with a vent tube connected to the movable tube, and the vent tube and the vent tube can jointly block the connection between the connecting chamber and the adsorption chamber;

[0031] The outer surface of the ventilation cylinder is provided with an inwardly concave ventilation groove, the movable cylinder is provided with a third ventilation hole for connecting the ventilation groove with the suction cavity, and the ventilation sleeve is provided with a ventilation notch for connecting the ventilation groove with the adsorption cavity;

[0032] A positioning ring for positioning the connecting assembly in the connecting cavity is also arranged in the movable cylinder.

[0033] In the present invention, the first bearing, the vent tube and the second bearing are arranged to block the connection between the blowing cavity and the inner cavity of the movable tube, so that the gas generator can inject gas into the blowing cavity through the first vent hole to depress the movable tube. The third vent hole, the vent groove and the vent notch are arranged to promote the connection between the suction cavity and the adsorption cavity, and then promote the connection between the suction cavity and the suction nozzle, so that the vacuum generator can generate negative pressure in the suction nozzle through the second vent hole to adsorb the screw.

[0034] Furthermore, locking notches communicating with the adsorption chamber are correspondingly provided on both sides of the movable cylinder, and the locking notches have an insertion section, the bottom end of the insertion section penetrates the bottom end of the movable cylinder, and the top end of the insertion section extends along the circumference of the movable cylinder to form a locking section;

[0035] The top end of the suction nozzle can be placed in the adsorption chamber and can rotate relative to the adsorption chamber. Both side walls of the suction nozzle are provided with locking protrusions, and the two locking protrusions can be matched with the two locking notches respectively.

[0036] A fourth elastic member is also provided in the adsorption chamber. When the two locking protrusions are respectively located at the two locking sections, the upper and lower ends of the fourth elastic member act on the ventilation sleeve and the suction nozzle respectively, so that: the locking protrusion (56) abuts against the bottom end of the locking section.

[0037] In the present invention, when the suction nozzle needs to be assembled, the two locking protrusions on the suction nozzle are aligned with the insertion section and slid into the locking section. At this time, under the support of the fourth elastic member, the suction nozzle is clamped at the bottom end of the movable cylinder.

[0038] Furthermore, the outer surface of the movable cylinder has a partition section, a first ventilation section and a limit section, and the partition section, the first ventilation section and the limit section are sequentially connected from top to bottom, and the outer diameters of the three decrease sequentially;

[0039] The inner surface of the locking head shell has a first guide section matched with the partition section, a second ventilation section spaced apart from the first ventilation section, and a second guide section matched with the first ventilation section;

[0040] A first sealing ring is arranged between the vent cylinder and the screwdriver head, a second sealing ring is arranged between the partition section and the first guide section, and a third sealing ring is arranged between the second guide section and the first vent section;

[0041] The diameter of the lower opening is smaller than the outer diameter of the first ventilation section and larger than the outer diameter of the limiting section.

[0042] In the present invention, the first sealing ring is used to block the connection between the connecting chamber and the adsorption chamber, the second sealing ring is used to block the connection between the blowing chamber and the suction chamber, and the third sealing chamber can ensure that the gas in the blowing chamber can enter the adsorption chamber.

[0043] To realize the supporting effect of the first elastic member on the movable cylinder, further, the first elastic member is sleeved on the first ventilation section, and the upper and lower ends of the first elastic member act on the bottom end surface of the partition section and the top end surface of the second guide section respectively.

[0044] Furthermore, the lock head shell includes a lock head shell and a nut sleeve threadedly connected to the lock head shell and connected to the bottom of the lock head shell, the bottom end of the lock head shell has a through opening for the movable cylinder to pass through, and the bottom end of the nut sleeve is provided with the lower opening.

[0045] In the present invention, the downward limit position of the movable cylinder relative to the screwdriver head can be adjusted by setting the nut sleeve and the locking head housing, so that the height position of the suction nozzle relative to the screwdriver head can be adjusted.

[0046] Furthermore, the outer surface of the bottom end of the lock head shell is arranged in a stepped shape, and the outer diameter of the bottom end of the lock head shell gradually decreases from top to bottom; the inner surface of the nut sleeve is adapted to the outer surface of the lock head shell.

[0047] To facilitate maintenance of the power output shaft, the lock head housing further comprises an upper housing and a lower housing detachably connected to the upper housing, and the bottom end of the upper housing is flush with the bottom end of the power output shaft.

[0048] When the power output shaft needs to be maintained, just remove the lower housing.

[0049] Furthermore, the locking head shell has an upper opening, and the first driving device is connected to the top of the locking head shell and closes the aforementioned upper opening.

[0050] Furthermore, the mounting frame is also equipped with an image sensor and a second driving device for driving the first driving device to move up and down.

[0051] In the present invention, the image sensor is used to identify the position of the screw so as to facilitate the suction of the screw by the suction nozzle. The second driving device is used to move the first driving device downward so as to facilitate the screwdriver head to lock the screw.

[0052] The present invention has the following beneficial effects:

[0053] 1. The present invention can form a mutually independent blowing cavity and suction cavity in the outer shell of the locking head through the setting of the movable cylinder. Through the suction cavity, negative pressure can be formed in the suction nozzle to adsorb the screw. The blowing cavity can be used to move the movable cylinder to adjust the height position of the suction nozzle relative to the screwdriver head. In this way, high-quality adsorption and locking work can be performed on the screw.

[0054] 2. In the present invention, the downward limit position of the movable cylinder relative to the screwdriver head can be adjusted by setting the nut sleeve and the locking head shell. In this way, the height position of the suction nozzle relative to the screwdriver head can be adjusted according to needs to obtain better adsorption and locking effects.

[0055] 3. The locking sleeve can be moved up and down to realize the fast locking and separation between the locking ball and the screwdriver head, and then the fast assembly and disassembly of the screwdriver head can be realized, which has the advantages of ingenious structure, convenient operation and reliable operation. Among them, through the cooperation between the conical head and the conical surface, the locking sleeve can be easily moved up by pushing the adjustment rod.

[0056] 4. The present invention realizes quick locking and quick separation between the suction nozzle and the movable cylinder by rotating the suction nozzle through the cooperation of the locking protrusion and the locking notch. The stability of the connection between the suction nozzle and the movable cylinder can be improved by setting the fourth elastic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the embodiments of the present invention, the following is a brief description of the drawings required to describe the embodiments of the present invention. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative work.

[0058] Figure 1 It is a structural schematic diagram of a specific embodiment of a screw machine locking assembly according to the present invention;

[0059] Figure 2 It is a structural schematic diagram of a specific embodiment of a screw machine locking assembly according to the present invention;

[0060] Figure 3 It is a structural schematic diagram of a specific embodiment of a screw machine locking assembly according to the present invention when the annular surface is loosened and faces the ball;

[0061] Figure 4 It is a structural schematic diagram of a specific embodiment of a screw machine locking assembly according to the present invention when the clamping ring surface faces the ball;

[0062] Figure 5 The present invention is a structural schematic diagram of a specific embodiment of a locking notch in a screw machine locking assembly according to the present invention.

[0063] Among them, the names of the parts corresponding to the figure numbers are as follows: 1. mounting frame, 2. first driving device, 3. screwdriver head, 4. locking head housing, 5. lower opening, 6. movable cylinder, 7. suction nozzle, 8. first elastic member, 9. first vent hole, 10. second vent hole, 11. connecting cavity, 12. adsorption cavity, 13. first bearing, 14. vent cylinder, 15. ventilation sleeve, 16. blowing cavity, 17. suction cavity, 18. third vent hole, 19. ventilation groove , 20, ventilation gap, 21, first sealing ring, 22, partition section, 23, first ventilation section, 24, limit section, 25, first guide section, 26, third sealing ring, 27, upper shell, 28, nut sleeve, 29, through port, 30, second ventilation section, 31, image sensor, 32, first sealing ring mounting groove, 33, second sealing ring mounting groove, 34, third sealing ring mounting groove, 35, positioning ring, 36, positioning ring mounting groove, 37 , power output shaft, 38, connecting blind hole, 39, mounting hole, 40, locking ball, 41, connecting column, 42, locking groove, 43, locking sleeve, 44, clamping ring surface, 45, loosening ring surface, 46, limiting ring, 47, second elastic member, 48, conical surface, 49, adjusting rod, 50, conical head, 51, limiting head, 52, third elastic member, 53, locking notch, 54, insertion section, 55, locking section, 56, locking protrusion, 57, Fourth elastic member, 58, lower shell, 59, second driving device, 60, connecting ring, 61, connecting ring groove, 62, positioning notch, 63, limiting groove, 64, second bearing, 65, second sealing ring, 66, second guide section, 67, fourth sealing ring, 68, fourth sealing ring mounting ring groove, 69, fifth sealing ring, 70, anti-slip sheet, 71, positioning convex ring, 72, positioning groove, 73, sixth sealing ring, 74, fourth sealing ring mounting ring groove. DETAILED DESCRIPTION

[0064] In order to make those skilled in the art better understand the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, not all. Based on the embodiments recorded in the present invention, all other embodiments obtained by those skilled in the art without paying creative work are within the scope of protection of the present invention.

[0065] Example 1

[0066] like Figure 1 to Figure 5 As shown, a screw machine locking assembly includes a mounting frame 1, a screwdriver head 3 and a first driving device 2 for driving the screwdriver head 3 to rotate, wherein the first driving device 2 is connected to the mounting frame 1;

[0067] The first driving device 2 has a power output shaft 37, and the screwdriver head 3 is detachably connected to the power output shaft 37 through a quick release assembly;

[0068] The mounting frame 1 is also provided with a hollow locking head housing 4 located at the periphery of the screwdriver head 3. An adjusting component is provided through the locking head housing 4. The adjusting component can act on the quick release component to cause the screwdriver head 3 to be separated from the power output shaft 37 or locked on the power output shaft 37.

[0069] A hollow movable cylinder 6 is slidably arranged in the lock head shell 4. The bottom end of the lock head shell 4 has a lower opening 5 that can prevent the movable cylinder 6 from escaping from the inner cavity of the lock head shell 4. The movable cylinder 6 divides the inner cavity of the lock head shell 4 into a blowing cavity 16 and an air suction cavity 17 that are independent of each other. The blowing cavity 16 is located above the movable cylinder 6, and the air suction cavity 17 is located on the periphery of the movable cylinder 6, and the air suction cavity 17 can be communicated with the inner cavity of the movable cylinder 6.

[0070] The bottom end of the movable cylinder 6 is detachably connected with a suction nozzle 7 which is in communication with the inner cavity of the movable cylinder 6. The suction nozzle 7 is located at the periphery of the screwdriver head 3 and can pass through the lower opening 5.

[0071] A connecting assembly is also provided between the movable cylinder 6 and the screwdriver head 3, and the connecting assembly enables the movable cylinder 6 to move up and down and rotate axially relative to the screwdriver head 3, and the connecting assembly can block the communication between the blowing cavity 16 and the inner cavity of the movable cylinder 6;

[0072] When the movable cylinder 6 moves down to the limit position in the locking head housing 4, the bottom end of the suction nozzle 7 is flush with the bottom end of the screwdriver head 3 or the bottom end of the suction nozzle 7 is located below the bottom end of the screwdriver head 3;

[0073] A first elastic member 8 is also provided in the locking head housing 4, and the first elastic member 8 acts on the movable cylinder 6 so that: the bottom end of the suction nozzle 7 is located above the bottom end of the screwdriver head 3;

[0074] The locking head shell 4 is provided with a first vent hole 9 communicating with the blowing cavity 16 , and the locking head shell 4 is also provided with a second vent hole 10 communicating with the suction cavity 17 .

[0075] In this embodiment, the lock head housing 4 has an upper opening, and the first drive device 2 is connected to the top of the lock head housing 4 and closes the upper opening. The first elastic member 8 can be a compression spring, and the first drive device 2 can be a motor.

[0076] Example 2

[0077] This embodiment is further defined as follows based on the embodiment 1: a connecting blind hole 38 is provided at the bottom end of the power output shaft 37, mounting holes 39 communicating with the connecting blind hole 38 are provided on both sides of the power output shaft 37, and locking balls 40 are rollingly provided in the mounting holes 39;

[0078] The top of the screwdriver head 3 is provided with a connecting column 41 which can be inserted into the connecting blind hole 38, and both sides of the connecting column 41 are provided with concave locking grooves 42, and the two locking grooves 42 can be connected with the two mounting holes 39 respectively;

[0079] The quick release assembly includes a locking sleeve 43, which is sleeved on the power output shaft 37 and can move up and down relative to the power output shaft 37. The inner surface of the locking sleeve 43 has a clamping ring surface 44 and a loosening ring surface 45 whose inner diameter is larger than the clamping ring surface 44. The clamping ring surface 44 and the loosening ring surface 45 are connected from top to bottom. When the clamping ring surface 44 faces the locking ball 40, the clamping ring surface 44 can clamp the locking ball 40 in the mounting hole 39 and make the locking ball 40 partially located in the connecting blind hole 38. When the loosening ring surface 45 faces the locking ball 40, the locking ball 40 can be separated from the area covered by the connecting blind hole 38.

[0080] The bottom end of the power output shaft 37 is provided with a limit ring 46 to prevent the locking sleeve 43 from detaching from the power output shaft 37. A second elastic member 47 is also provided on the power output shaft 37. The second elastic member 47 acts on the locking sleeve 43 so that: the locking sleeve 43 abuts against the limit ring 46, and the clamping ring surface 44 faces the locking ball 40.

[0081] In this embodiment, the second elastic member 47 is a compression spring. A connecting ring 60 is also provided on the power output shaft 37, and a concave connecting ring groove 61 is provided on the top of the locking sleeve 43; the upper and lower ends of the second elastic member 47 are respectively abutted on the connecting ring 60 and the connecting ring groove 61. For the convenience of processing, the two locking grooves 42 can be connected, and the notch of the locking groove 43 should be smaller than the diameter of the locking ball 40, so that the locking ball 40 can be prevented from being retained in the channel connecting the two locking grooves 43. In order to facilitate the partial placement of the locking ball 40 in the locking groove 43, the notch of the locking groove 43 should be designed in an arc surface that is compatible with the locking ball 40, and the distance between the release ring surface 45 and the outer surface of the power output shaft 37 should be smaller than the diameter of the locking ball 40 and greater than the limit depth value of the locking ball 40 that can be placed in the locking groove 43.

[0082] Example 3

[0083] This embodiment is further defined as follows based on the embodiment 2: the outer surface of the locking sleeve 43 has a tapered surface 48, and the tapered surface 48 is larger at the top and smaller at the bottom;

[0084] The adjustment assembly includes an adjustment rod 49 that passes through the lock head housing 4, and the end of the adjustment rod 49 located in the inner cavity of the lock head housing 4 is provided with a conical head 50 that can cooperate with the conical surface 48, and the end of the adjustment rod 49 located outside the lock head housing 4 is provided with a limit head 51;

[0085] The adjusting rod 49 is also provided with a third elastic member 52, and the two ends of the third elastic member 52 act on the limiting head 51 and the locking head housing 4 respectively, so that: the conical head 50 is separated from the conical surface 48;

[0086] When the conical head 50 moves to the limit position in the direction close to the conical surface 48 , the release annular surface 45 can face the locking ball 40 .

[0087] In this embodiment, in order to prevent the adjustment rod from excessively moving or not moving in place, the outer surface of the middle part of the locking sleeve 43 also has a positioning notch 62, and the conical surface 48 is connected with the positioning notch 62 from top to bottom. When the conical head 50 moves to the positioning notch 62, the loosening annular surface 45 just faces the locking ball 40, so that the stability of the quick release operation can be further improved. In order to improve the sealing of the blowing cavity, a fifth sealing ring 69 is provided between the adjustment rod 49 and the locking head shell 4. In order to prevent the conical head 50 from detaching from the inner cavity of the locking head shell 4 under the operation of the third elastic member 52, an anti-detachment sheet 70 can be provided on the conical head 50.

[0088] Example 4

[0089] This embodiment is further defined as follows based on the embodiment 1: the inner cavity of the movable cylinder 6 includes a connecting cavity 11 and an adsorption cavity 12 which is connected to the connecting cavity 11 and is located below the connecting cavity 11, and the inner diameter of the adsorption cavity 12 is smaller than the inner diameter of the connecting cavity 11;

[0090] The connecting assembly includes a first bearing 13, a vent tube 14 and a second bearing 64 arranged in sequence from top to bottom. The first bearing 13, the second bearing 64 and the vent tube 14 are all movably sleeved on the screwdriver head 3. The outer ring of the first bearing 13 is connected to the movable tube 6. The outer ring of the second bearing 64 is sleeved with a vent sleeve 15 connected to the movable tube 6. The vent tube 14 and the vent sleeve 15 can jointly block the connection between the connecting chamber 11 and the adsorption chamber 12.

[0091] The outer surface of the ventilation cylinder 14 is provided with a concave ventilation groove 19, the movable cylinder 6 is provided with a third ventilation hole 18 for connecting the ventilation groove 19 with the suction chamber 17, and the ventilation sleeve 15 is provided with a ventilation notch 20 for connecting the ventilation groove 19 with the adsorption chamber 12;

[0092] A positioning ring 35 for positioning the connecting assembly in the connecting cavity 11 is also provided in the movable cylinder 6 .

[0093] In this embodiment, a positioning ring installation groove 36 is provided on the inner wall of the movable cylinder 6 and is located above the first bearing 13. The positioning ring 35 is clamped in the positioning ring installation groove 36. The first bearing 13 and the second bearing 64 can be deep groove bearings with covers.

[0094] Example 5

[0095] This embodiment is further defined as follows on the basis of the embodiment 4: locking notches 53 communicating with the adsorption chamber 12 are correspondingly provided on both sides of the movable cylinder 6, the locking notch 53 has an insertion section 54, the bottom end of the insertion section 54 passes through the bottom end of the movable cylinder 6, and the top end of the insertion section 54 extends along the circumference of the movable cylinder 6 to form a locking section 55;

[0096] The top end of the suction nozzle 7 can be placed in the suction chamber 12 and can rotate relative to the suction chamber 12. Both side walls of the suction nozzle 7 are provided with locking protrusions 56, and the two locking protrusions 56 can respectively match with the two locking notches 53;

[0097] A fourth elastic member 57 is also provided in the adsorption chamber 12 . When the two locking protrusions 56 are respectively located at the two locking sections 55 , the upper and lower ends of the fourth elastic member 57 act on the ventilation sleeve 15 and the suction nozzle 7 respectively, so that: the locking protrusion 56 abuts against the bottom end of the locking section 55 .

[0098] In this embodiment, the fourth elastic member 57 is a compression spring. The two locking protrusions 56 can be formed by using the same locking rod to penetrate the two sides of the suction nozzle 7, or locking rods can be provided on both sides of the suction nozzle 7. The locking notch 53 can penetrate the outer surface of the suction nozzle 7.

[0099] In order to improve the connection stability of the suction nozzle 7, the insertion section 54 is vertically arranged, the locking section 55 is inclined, and the height position of the end of the locking section 55 away from the insertion section 54 is lower than the end of the locking section 55 connected to the insertion section 54. The top of the suction nozzle 7 is provided with a concave limiting groove 63; when the two locking protrusions 56 are respectively located at the two locking sections 55, the upper and lower ends of the fourth elastic member 57 are respectively in contact with the bottom end of the ventilation sleeve 15 and the bottom of the limiting groove 9.

[0100] Example 6

[0101] This embodiment is further defined as follows on the basis of the embodiment 4: the outer surface of the movable cylinder 6 has a partition section 22, a first ventilation section 23 and a limit section 24, the partition section 22, the first ventilation section 23 and the limit section 24 are connected in sequence from top to bottom, and the outer diameters of the three decrease in sequence;

[0102] The inner surface of the locking head housing 4 has a first guide section 25 matched with the partition section 22, a second ventilation section 30 spaced apart from the first ventilation section 23, and a second guide section 66 matched with the first ventilation section 23;

[0103] A first sealing ring 21 is provided between the vent cylinder 14 and the screwdriver head 3, a second sealing ring 65 is provided between the partition section 22 and the first guide section 25, and a third sealing ring 26 is provided between the second guide section 66 and the first vent section 23. The third sealing ring 23 and the second sealing ring 65 enable the outer surface of the movable cylinder 6 and the inner surface of the locking head housing 4 to jointly form the suction cavity 17;

[0104] The diameter of the lower opening 5 is smaller than the outer diameter of the first ventilation section 23 and larger than the outer diameter of the limiting section 24 .

[0105] A fourth sealing ring 67 may be provided between the outer surface of the suction nozzle 7 and the wall of the adsorption chamber, and a fourth sealing ring mounting groove 68 may be provided on the outer surface of the suction nozzle 7 .

[0106] Preferably, the first elastic member 8 is sleeved on the first ventilation section 23 , and the upper and lower ends of the first elastic member 8 act on the bottom end surface of the partition section 22 and the top end surface of the second guide section 66 respectively.

[0107] In this embodiment, a first sealing ring installation groove 32 may be provided on the inner wall surface of the vent 14, the first sealing ring 21 is installed in the first sealing ring installation groove 32, and the inner ring surface of the first sealing ring 21 abuts against the outer peripheral surface of the screwdriver head 3. At least two first sealing rings 21 may be provided between the inner wall of the vent 14 and the outer wall of the screwdriver head 3. A second sealing ring installation groove 33 may be provided on the outer surface of the partition section 22, the second sealing ring 65 is installed in the second sealing ring installation groove 33, and the outer ring surface of the second sealing ring 65 abuts against the inner wall surface of the first guide section 25. A third sealing ring installation groove 34 may be provided on the inner surface of the second guide section 66, the third sealing ring 26 is installed in the third sealing ring installation groove 34, and the inner ring surface of the third sealing ring 26 abuts against the outer surface of the first vent section 23.

[0108] Example 7

[0109] This embodiment makes the following further limitations on the basis of Embodiment 1: the lock head housing 4 includes a lock head shell and a nut sleeve 28 threadedly connected to the lock head shell and connected to the bottom of the lock head shell, the bottom end of the lock head shell has a through opening 29 for the movable cylinder 6 to pass through, and the bottom end of the nut sleeve 28 is provided with the lower opening 5.

[0110] Preferably, the outer surface of the bottom end of the lock head shell is arranged in a stepped shape, and the outer diameter of the bottom end of the lock head shell gradually decreases from top to bottom; the inner surface of the nut sleeve 28 is adapted to the outer surface of the lock head shell.

[0111] Preferably, the lock head housing includes an upper housing 27 and a lower housing 58 detachably connected to the upper housing 27 , and the bottom end of the upper housing 27 is flush with the bottom end of the power output shaft 37 .

[0112] In order to improve the stability of the connection between the upper shell 27 and the lower shell 58, a positioning convex ring 71 may be provided on the top end surface of the lower shell 58, a positioning groove 72 that can be inserted and matched with the positioning convex ring 71 is provided on the bottom end surface of the upper shell 27, and a sixth sealing ring 73 is provided at the connection between the upper shell 27 and the lower shell 58. A fourth sealing ring installation groove for installing the sixth sealing ring 73 may be provided on the upper shell 27 or the lower shell 58.

[0113] Example 5

[0114] This embodiment makes the following further limitations on the basis of Embodiment 1: the mounting frame 1 is further equipped with an image sensor 31 and a second driving device 59 for driving the first driving device 2 to move up and down.

[0115] The image sensor 31 may include a camera and a coaxial light source, the camera may be aca2500-14gm, and the coaxial light source may be HL-CL-25 (blue light). The second driving device 59 may be a slide cylinder.

[0116] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific embodiments of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, other embodiments obtained without departing from the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw machine locking assembly, characterized in that: It comprises a mounting frame (1), a screwdriver head (3) and a first driving device (2) for driving the screwdriver head (3) to rotate, wherein the first driving device (2) is connected to the mounting frame (1); The first driving device (2) has a power output shaft (37), and the screwdriver head (3) is detachably connected to the power output shaft (37) via a quick-release assembly; A locking head shell (4) which is hollow and located outside the screwdriver head (3) is also mounted on the mounting frame (1); an adjusting component is disposed through the locking head shell (4); the adjusting component can act on the quick-release component to cause the screwdriver head (3) to be separated from the power output shaft (37) or locked on the power output shaft (37); A hollow movable cylinder (6) is slidably arranged in the locking head shell (4); the bottom end of the locking head shell (4) has a lower opening (5) capable of preventing the movable cylinder (6) from being separated from the inner cavity of the locking head shell (4); the movable cylinder (6) divides the inner cavity of the locking head shell (4) into a blowing cavity (16) and an air suction cavity (17) which are independent of each other; the blowing cavity (16) is located above the movable cylinder (6); the air suction cavity (17) is located at the periphery of the movable cylinder (6), and the air suction cavity (17) can be communicated with the inner cavity of the movable cylinder (6); the bottom end of the movable cylinder (6) is detachably connected with a suction nozzle (7) which is communicated with the inner cavity of the movable cylinder (6); the suction nozzle (7) is located at the periphery of the screwdriver head (3) and can pass through the lower opening (5); A connecting assembly is also provided between the movable cylinder (6) and the screwdriver head (3), the connecting assembly enabling the movable cylinder (6) to move up and down and rotate axially relative to the screwdriver head (3), and the connecting assembly can block the communication between the blowing cavity (16) and the inner cavity of the movable cylinder (6); When the movable cylinder (6) moves downward to the extreme position in the locking head housing (4), the bottom end of the suction nozzle (7) is flush with the bottom end of the screwdriver head (3) or the bottom end of the suction nozzle (7) is located below the bottom end of the screwdriver head (3); A first elastic member (8) is also provided in the locking head housing (4), and the first elastic member (8) acts on the movable cylinder (6) so that: the bottom end of the suction nozzle (7) is located above the bottom end of the screwdriver head (3); A first vent hole (9) communicating with the blowing cavity (16) is provided on the locking head shell (4), and a second vent hole (10) communicating with the suction cavity (17) is also provided on the locking head shell (4).

2. A screw machine locking assembly according to claim 1, characterized in that: The bottom end of the power output shaft (37) is provided with a connecting blind hole (38), and both sides of the power output shaft (37) are provided with mounting holes (39) connected to the connecting blind hole (38), and locking balls (40) are rollingly arranged in the mounting holes (39); The top of the screwdriver head (3) is provided with a connecting column (41) which can be inserted into and matched with the connecting blind hole (38), and both sides of the connecting column (41) are provided with concave locking grooves (42), and the two locking grooves (42) can be communicated with the two mounting holes (39) respectively; The quick-release assembly comprises a locking sleeve (43), the locking sleeve (43) is sleeved on the power output shaft (37) and can move up and down relative to the power output shaft (37), the inner surface of the locking sleeve (43) comprises a clamping ring surface (44) and a loosening ring surface (45) whose inner diameter is larger than the clamping ring surface (44), the clamping ring surface (44) and the loosening ring surface (45) are connected from top to bottom, when the clamping ring surface (44) faces the locking ball (40), the clamping ring surface (44) can clamp the locking ball (40) in the mounting hole (39) and make the locking ball (40) partially located in the connecting blind hole (38), when the loosening ring surface (45) faces the locking ball (40), the locking ball (40) can be separated from the area covered by the connecting blind hole (38); A limiting ring (46) is provided at the bottom end of the power output shaft (37) to prevent the locking sleeve (43) from being separated from the power output shaft (37). A second elastic member (47) is also provided on the power output shaft (37). The second elastic member (47) acts on the locking sleeve (43) so that: the locking sleeve (43) abuts against the limiting ring (46), and the clamping ring surface (44) faces the locking ball (40).

3. A screw machine locking assembly according to claim 2, characterized in that: The outer surface of the locking sleeve (43) has a tapered surface (48), and the tapered surface (48) is larger at the top and smaller at the bottom; The adjustment assembly comprises an adjustment rod (49) penetrating the lock head housing (4); the end of the adjustment rod (49) located in the inner cavity of the lock head housing (4) is provided with a conical head (50) that can cooperate with the conical surface (48); and the end of the adjustment rod (49) located outside the lock head housing (4) is provided with a limit head (51); A third elastic member (52) is also provided on the adjusting rod (49), and two ends of the third elastic member (52) act on the limiting head (51) and the locking head housing (4) respectively, so that: the conical head (50) is separated from the conical surface (48); When the conical head (50) moves to the extreme position in the direction close to the conical surface (48), the loosening annular surface (45) can face the locking ball (40).

4. A screw machine locking assembly according to claim 1, characterized in that: The inner cavity of the movable cylinder (6) comprises a connecting cavity (11) and an adsorption cavity (12) which is connected to the connecting cavity (11) and is located below the connecting cavity (11); the inner diameter of the adsorption cavity (12) is smaller than the inner diameter of the connecting cavity (11); the connecting assembly comprises a first bearing (13), a vent cylinder (14) and a second bearing (64) which are arranged in sequence from top to bottom; the first bearing (13), the second bearing (64) and the vent cylinder (14) are all movably sleeved on the screwdriver head (3); the outer ring of the first bearing (13) is connected to the movable cylinder (6); the outer ring of the second bearing (64) is sleeved with a vent sleeve (15) which is connected to the movable cylinder (6); the vent cylinder (14) and the vent sleeve (15) can jointly block the connection between the connecting cavity (11) and the adsorption cavity (12); The outer surface of the ventilation cylinder (14) is provided with an inwardly concave ventilation groove (19), the movable cylinder (6) is provided with a third ventilation hole (18) for connecting the ventilation groove (19) with the suction chamber (17), and the ventilation sleeve (15) is provided with a ventilation notch (20) for connecting the ventilation groove (19) with the adsorption chamber (12); a positioning ring (35) for positioning the connection assembly in the connection chamber (11) is also provided in the movable cylinder (6).

5. A screw machine locking assembly according to claim 4, characterized in that: The movable cylinder (6) is provided with locking notches (53) communicating with the adsorption chamber (12) on both sides thereof, the locking notches (53) having an insertion section (54), the bottom end of the insertion section (54) passing through the bottom end of the movable cylinder (6), the top end of the insertion section (54) extending along the circumference of the movable cylinder (6) to form a locking section (55); the top end of the suction nozzle (7) can be inserted into the adsorption chamber (12) and can rotate relative to the adsorption chamber (12), the two side walls of the suction nozzle (7) are both protruding with locking protrusions (56), and the two locking protrusions (56) can respectively cooperate with the two locking notches (53); A fourth elastic member (57) is also provided in the adsorption chamber (12). When the two locking protrusions (56) are respectively located at the two locking sections (55), the upper and lower ends of the fourth elastic member (57) act on the ventilation sleeve (15) and the suction nozzle (7) respectively, so that the locking protrusion (56) abuts against the bottom end of the locking section (55).

6. A screw machine locking assembly according to claim 4, characterized in that: The outer surface of the movable cylinder (6) comprises a partition section (22), a first ventilation section (23) and a limit section (24); the partition section (22), the first ventilation section (23) and the limit section (24) are connected in sequence from top to bottom, and the outer diameters of the three sections decrease in sequence; The inner surface of the locking head housing (4) comprises a first guide section (25) matched with the partition section (22), a second ventilation section (30) spaced apart from the first ventilation section (23), and a second guide section (66) matched with the first ventilation section (23); A first sealing ring (21) is provided between the vent cylinder (14) and the screwdriver head (3), a second sealing ring (65) is provided between the partition section (22) and the first guide section (25), and a third sealing ring (26) is provided between the second guide section (66) and the first vent section (23); The diameter of the lower opening (5) is smaller than the outer diameter of the first ventilation section (23) and larger than the outer diameter of the limiting section (24).

7. A screw machine locking assembly according to claim 4, characterized in that: The first elastic member (8) is sleeved on the first ventilation section (23), and the upper and lower ends of the first elastic member (8) act on the bottom end surface of the partition section (22) and the top end surface of the second guide section (66) respectively.

8. The screw machine locking assembly according to claim 1, characterized in that: The lock head housing (4) comprises a lock head shell and a nut sleeve (28) threadedly connected to the lock head shell and connected to the bottom of the lock head shell, the bottom end of the lock head shell has a through hole (29) through which the movable cylinder (6) can pass, and the bottom end of the nut sleeve (28) is provided with the lower opening (5).

9. A screw machine locking assembly according to claim 8, characterized in that: The lock head housing comprises an upper housing (27) and a lower housing (58) detachably connected to the upper housing (27), and the bottom end of the upper housing (27) is flush with the bottom end of the power output shaft (37).

10. A screw machine locking assembly according to any one of claims 1 to 9, characterized in that: The mounting frame (1) is also equipped with an image sensor (31) and a second driving device (59) for driving the first driving device (2) to move up and down.

Images