Closing-up driving assembly and aviation nut closing-up machine

Abstract

The utility model discloses a closing-in driving assembly and an aviation nut closing-in machine, the aviation nut closing-in machine comprises a closing-in driving assembly, a heating mechanism, a material ejecting mechanism and a material taking mechanism, the closing-in driving assembly comprises a guide rail disc, at least two guide grooves extending in the radial direction and at least two pressing die sliding seats are arranged in the circumferential direction of the guide rail disc, and the pressing die sliding seats are connected with the guide grooves in a sliding mode. A through hole is formed in the center area of the feeding pressing disc, the guide rail disc is located in the through hole and is coaxial with the feeding pressing disc, and the feeding pressing disc rotates to drive the pressing die sliding base to move in the direction away from or close to the axis of the guide rail disc in the radial direction of the guide rail disc; and the driving mechanism is used for controlling the feeding pressure plate to rotate. The nut closing-in machine can control the pressing die sliding base to move in the radial direction of the guide rail disc together, the pressing head at the front end of the pressing die sliding base extrudes the periphery of an aviation nut, closing-in operation is conducted on the aviation nut, and full-automatic precise closing-in machining of a high-locking nut can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation nut processing, in particular to a closing drive component and an aviation nut closing machine. Background Art

[0002] The main difference between high-lock nuts and ordinary nuts is that high-lock nuts can obtain the specified locking torque and loosening torque after installation, and are not easy to loosen or fall off during use, and have high safety; therefore, high-lock nuts are widely used in aerospace products and other fields; and the expected locking torque and loosening torque of high-lock nuts are obtained through the closing process; therefore, the closing process is a necessary key process in the processing of high-lock nuts, and needs to be performed on a special closing machine.

[0003] The existing closing machines have closing methods such as two-point closing, three-point closing, and four-point closing. The fully automatic closing device disclosed in the patent document with publication number CN106270271A can achieve three-point closing, but each closing pressure head is controlled and moved by a separate driving mechanism, and there will be a time difference between each driving mechanism, and the synchronization is not high. At the same time, the device can only achieve a three-point closing method, and the versatility is poor; the nut closing machine disclosed in the patent document with publication number CN214023190U can achieve two-point closing, three-point closing, and four-point closing, but the closing action of the closing machine is through the method of inclined plane matching, the extrusion piece moves up to extrude the extrusion rod mold body, and drives the extrusion rod mold body to move radially. The extrusion rod mold body can only shrink and move toward the center and cannot return to its original position. In addition, the extrusion piece will be greatly worn and easily deformed during operation, so it is also not advisable. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems, and a closing drive assembly and an aviation nut closing machine are designed to solve the problems of poor versatility of existing closing machines and poor consistency of processed workpieces.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is a closing drive assembly, comprising:

[0006] A guide rail disc, wherein at least two guide grooves extending in a radial direction and at least two die slides are arranged in the circumferential direction of the guide rail disc, wherein the die slides are slidably connected with the guide grooves;

[0007] A feed platen, wherein the central region of the feed platen has a through hole, the guide platen is located in the through hole and is coaxial with the feed platen, and the feed platen drives the die slide to move in a radial direction away from or close to the axis along the guide platen by rotating;

[0008] A driving mechanism, which is arranged below the feed platen and is drivingly connected to the feed platen and is used to control the rotation of the feed platen;

[0009] At least two guide members are arranged in the circumferential direction of the feed platen, and the distance from one end of the guide member to the other end to the center of the guide plate gradually decreases. One end of the die slide extends to the closing processing position in the center of the guide plate, and the other end is slidably connected to the guide member. A detachable pressure head is arranged at the end of each die slide away from the guide member.

[0010] Furthermore, the guide groove includes a first guide groove and a second guide groove, four first guide grooves are provided, and the four first guide grooves are evenly distributed along the circumferential direction of the guide rail plate, and two second guide grooves are provided, and the angles between the two second guide grooves and one of the first guide grooves are 120° to each other.

[0011] Furthermore, the guide member includes a first guide member and a second guide member, wherein four first guide members are provided and correspond to four first guide grooves respectively, and two second guide members are provided and correspond to second guide grooves respectively.

[0012] Furthermore, the driving mechanism includes a driving motor and a reducer, the output end of the driving motor is drivingly connected to the input end of the reducer, the output end of the reducer is connected to a circumferential fixed bracket, and the circumferential fixed bracket is fixedly connected to the bottom of the feed pressure plate.

[0013] Furthermore, one end of the die slide away from the pressing head is rotatably connected to a roller, and the roller is located in the arc hole and can roll along the track of the arc hole.

[0014] The utility model also provides an aviation nut closing machine, comprising the closing drive assembly as described above, and also comprising:

[0015] A heating mechanism, the heating mechanism comprising a heating coil that can move up and down, the middle of the heating coil having a through hole that passes through from top to bottom, the through hole being coaxial with the guide plate;

[0016] A material ejection mechanism, which is arranged directly below the center of the guide rail plate and includes a positioning block that can move up and down and is used to roughly position the product to be processed;

[0017] The material taking mechanism is used to clamp the product to be processed, transfer it to the through hole on the heating coil for heating, and then place it on the positioning block.

[0018] Furthermore, the material picking mechanism includes a robot bracket fixed on the machine platform, a multi-axis robot arranged on the robot bracket, a finger cylinder arranged on the multi-axis robot, and two air claw seats arranged on the finger cylinder, and an expansion claw is arranged at the lower end of each air claw seat.

[0019] Furthermore, the ejection mechanism further comprises a cylinder bracket, an ejection cylinder vertically arranged on the cylinder bracket, and a positioning boss connected to the output end of the ejection cylinder, the positioning block is fixed on the top of the positioning boss, a positioning column is arranged at the top center of the positioning block, and the diameter of the positioning column is smaller than the aperture of the product to be processed;

[0020] A three-axis coordinate platform for adjusting the position of the positioning block is arranged at the bottom of the cylinder bracket, and the three-axis coordinate platform is fixed on a coordinate platform fixing bracket.

[0021] Furthermore, a central fixed bracket is fixedly provided at the bottom of the guide rail plate, and the center of the central fixed bracket has a through hole that passes through the upper and lower parts. The pushing cylinder is used to control the up and down movement of the positioning block. The product to be processed on the positioning block is lifted upward by the pushing cylinder through the through hole on the central fixed bracket and moved between multiple pressure heads.

[0022] Furthermore, a blowing and unloading adjustment bracket is provided on the inner side of the machine, a blowing and unloading fixed bracket is provided on the blowing and unloading adjustment bracket, the upper end of the blowing and unloading fixed bracket extends to the inner side of the through hole on the central fixed bracket, and a blowing head is provided on the top of the blowing and unloading fixed bracket.

[0023] Compared with the prior art, the beneficial effects are:

[0024] In the utility model, by driving the feed platen to rotate, the distance from one end of the guide member on the feed platen to the other end to the center of the guide platen gradually decreases, driving the die slide to slide along the guide member, so that the die slide on the guide plate moves together in the radial direction at the same time, and the pressure head at the front end of the die slide squeezes the outer periphery of the aviation nut to close it, which can realize the fully automatic precision closing processing of high-lock nuts with high production efficiency. Each pressure head gives the same pressure to the aviation nut, and the aviation nut is more evenly stressed and not easy to crack. The closing drive assembly is a part of the nut closing machine, which is easy to install, improves the applicability of the equipment, has high production efficiency, stable quality, low labor intensity, effectively reduces production costs, and is suitable for large-scale batch production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the aviation nut closing machine in the utility model;

[0026] Figure 2It is a structural schematic diagram of the aviation nut closing machine in the utility model when the cover and the vibration feeding mechanism are removed;

[0027] Figure 3 It is a schematic diagram of the structure of the heating mechanism, the material taking mechanism and the closing drive assembly in the utility model when they are working;

[0028] Figure 4 yes Figure 3 A magnified view of the structure at A;

[0029] Figure 5 It is a structural schematic diagram of the vibration feeding mechanism in the utility model.

[0030] Figure 6 It is a structural schematic diagram of the heating mechanism and the material taking mechanism in the utility model;

[0031] Figure 7 yes Figure 6 A magnified view of the structure at B in the middle;

[0032] Figure 8 It is a structural schematic diagram of various components at the bottom of the feed platen in the utility model;

[0033] Fig. 9 It is a structural schematic diagram of the driving mechanism in the utility model;

[0034] Fig.10 It is a structural schematic diagram of the ejecting mechanism in the utility model;

[0035] Fig.11 It is a structural schematic diagram of the guide rail plate in the utility model;

[0036] Fig.12 It is a structural schematic diagram of the feed platen in the utility model;

[0037] Fig.13 It is a structural schematic diagram of the die slide in the utility model;

[0038] Fig.14 It is the distribution diagram of the die slide when closing at two points;

[0039] Fig.15 This is the distribution diagram of the die slide when closing at three points;

[0040] Fig.16 This is the distribution diagram of the die slide when closing at four points;

[0041] Fig.17 It is a schematic diagram of the structure of pressure heads of different specifications in the utility model;

[0042] Fig.18 , 19 20 are structural schematic diagrams of three other implementation methods of the guide member.

[0043] In the figure, 1, machine table; 2, vibration feeding mechanism; 201, vibration plate; 202, direct vibration assembly; 203, material storage mechanism; 3, material taking mechanism; 31, robot bracket; 32, multi-axis robot; 33, finger cylinder; 34, air claw seat; 35, expansion claw; 4, heating mechanism; 41, heating fixed bracket; 42, adjustment seat; 43, heater; 44, temperature measuring instrument; 45, heating coil; 5, driving mechanism; 51, driving motor; 52, reducer; 6, protective cover; 7, circumferential fixed bracket; 8, feed plate; 81, arc plate; 811, T-slot; 801, The first arc hole; 802, the second arc hole; 9, the cover; 10, the guide rail pressure plate; 11, the guide rail plate; 111, the first guide groove; 112, the second guide groove; 12, the die slide; 121, the rotating shaft; 122, the roller; 13, the pressure head; 14, the coordinate platform fixing bracket; 15, the three-axis coordinate platform; 16, the cylinder bracket; 17, the guide cylinder; 18, the blanking chute; 19, the center fixing bracket; 20, the ejecting cylinder; 21, the positioning boss; 22, the positioning block; 221, the positioning column; 23, the blowing and unloading adjustment bracket; 24, the blowing and unloading fixing bracket; 25, the blowing head. DETAILED DESCRIPTION

[0044] 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. 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.

[0045] like Figure 1-Figure 3 As shown, a preferred embodiment of the utility model proposes a closing drive assembly and an aviation nut closing machine, wherein the closing drive assembly is used in the aviation nut closing machine, and the aviation nut closing machine can meet closing methods such as two-point closing, three-point closing and four-point closing, so it has high versatility. When performing the closing action, the closing machine can control multiple die slides 12 to move back and forth along the radial direction of the guide plate 11 at the same time.

[0046] refer to Figure 1 The aviation nut closing machine is mainly composed of a machine platform 1, a material picking mechanism 3, a material pushing mechanism, a heating mechanism 4, a vibration feeding mechanism 2, a closing drive component, etc., wherein the closing drive component is installed on the machine platform 1, and the material picking mechanism 3, the heating mechanism 4 and the vibration feeding mechanism 2 are also installed on the machine platform 1, but are located on the side of the closing drive component, and the material pushing mechanism is located below the closing drive component. The material pushing mechanism lifts the aviation nut to the processing position, and the closing drive component closes the nut.

[0047] like Figure 2 , Figure 3 As shown, the closing drive assembly mainly includes components such as a guide plate 11, a die slide 12, a feed platen 8, and a drive mechanism 5, wherein the guide plate 11 is provided with at least two guide grooves in the circumferential direction, preferably 6; the guide grooves extend radially outward from the center of the guide plate 11, the die slide 12 is slidably connected to the guide grooves, and at least two guide members are provided in the circumferential direction of the feed platen 8, preferably 6, which is consistent with the number of the guide grooves; one end of the die slide 12 is slidably connected to the guide member, and the other end is provided with a pressure head 13, which extends to the center processing position of the guide plate 11, and the drive mechanism 5 is used to control the rotation of the feed platen 8. When the feed platen 8 rotates, with the cooperation of the guide member, the die slide 12 can be driven to slide along the guide groove, so that the die slide 12 can move back and forth radially along the guide platen 11.

[0048] like Figure 5 As shown, the vibrating feeding mechanism 2 is used for feeding aviation nuts, which is composed of a vibration disk 201 and a direct vibration component 202, wherein the direct vibration component 202 is connected to the discharge end of the vibration disk 201, and a storage mechanism 203 is arranged at the discharge end of the direct vibration component 202. The direct vibration component 202 transfers the aviation nuts to the storage mechanism 203 for temporary storage so that the material picking mechanism 3 can grab them.

[0049] like Figure 4 , Figure 6 As shown, the material picking mechanism 3 is composed of a robot bracket 31, a multi-axis robot 32, a finger cylinder 33 and an air claw seat 34, wherein the robot bracket 31 is fixed on the machine platform 1, the multi-axis robot 32 is mounted and fixed on the robot bracket 31, the finger cylinder 33 is mounted on the multi-axis robot 32, and two air claw seats 34 are provided, which are respectively mounted on the two moving ends of the finger cylinder 33, and the opening and closing of the air claw seat 34 can be controlled by the finger cylinder 33.

[0050] refer to Figure 7 An expansion claw 35 is provided at the lower end of each air claw seat 34 , and the expansion claw 35 is fixed to the air claw seat 34 by bolts. Therefore, the expansion claw 35 can be replaced according to different nut models.

[0051] Since there is a through hole in the middle of the nut, when taking the material, the finger cylinder 33 controls the two expansion claws 35 to close, and then the multi-axis robot 32 controls the two expansion claws 35 to extend into the through hole in the middle of the nut, and then the finger cylinder 33 controls the two expansion claws 35 to open and support on the inner wall of the through hole, so that the nut can be transferred from the material storage mechanism 203 to the heating mechanism 4, and the nut can be heated before the closing operation to facilitate the subsequent closing operation.

[0052] like Figure 6As shown, the heating mechanism 4 is composed of a heating fixed bracket 41, a thermometer 44, an adjustment seat 42, a heater 43 and a heating coil 45, wherein the heating fixed bracket 41 is fixed on the machine table 1, and the thermometer 44 is fixed on the top of the heating fixed bracket 41, and is used to detect the heating temperature of the nut; the adjustment seat 42 is installed and fixed on the side of the heating fixed bracket 41, the heater 43 is installed on the adjustment seat 42, and the heating coil 45 is installed on the heater 43. The heating coil 45 is energized by the heater 43 to generate high temperature. The adjustment seat 42 is used to adjust the position of the heating coil 45 in three-dimensional space (i.e., the up and down, front and back, left and right positions) to ensure that the through hole in the middle of the heating coil 45 is coaxial with the guide plate 11 below.

[0053] The material taking mechanism 3 first transfers the nut to the through hole in the middle of the heating coil 45 to heat the nut. The heated nut is easier to deform during the closing process. The multi-axis robot 32 can drive the nut to rotate and adjust the position of the nut. After the temperature meter 44 detects that the temperature of the nut reaches the set temperature, the material taking mechanism 3 moves down and puts the nut on the lifting mechanism, which will roughly position the nut.

[0054] like Figure 8 , Fig.10 As shown, the ejection mechanism is installed on the inner side of the machine 1, just below the center of the guide plate 11. The ejection mechanism is composed of a cylinder bracket 16, an ejection cylinder 20, a positioning boss 21, a positioning block 22, etc., wherein a three-axis coordinate titanium is arranged at the bottom of the cylinder bracket 16, the three-axis coordinate platform is mounted and fixed on the coordinate platform fixing bracket 14, the lower end of the coordinate platform fixing bracket 14 is fixed to the machine 1 by bolts, and the ejection cylinder 20 is vertically fixed on the cylinder bracket 16, the output end of the ejection cylinder 20 is connected to the positioning boss 21, the middle of the positioning boss 21 has a through hole, the bottom of the positioning block 22 is provided with a latch, the latch is inserted into the through hole, and the positioning block 22 is positioned, and the center of the top of the positioning block 22 has a positioning column 221, the diameter of the positioning column 221 is generally smaller than the hole diameter of the nut, so as to roughly position the nut.

[0055] There is also a through hole in the middle of the guide plate 11. The up and down, front and back, left and right positions of the positioning column 221 can be adjusted through the three-axis coordinate platform, so that the positioning column 221 can be coaxial with the through holes of the guide plate 11 and the heating coil 45. The material picking mechanism 3 passes the nut through the through hole of the heating coil 45. After the nut is heated, the nut is placed on the positioning block 22. The positioning column 221 roughly positions the nut. During the closing operation, the nut is at the center position of the through hole on the guide plate 11. The center position is the closing processing position of the product, and then the closing drive assembly performs the closing operation on the nut.

[0056] refer to Figure 3The closing operation of the closing drive assembly is mainly achieved by rotating the feed platen 8 and cooperating with the guide member on the feed platen 8 to drive the die slide 12 to slide along the guide groove. The pressure head 13 at the front end of the die slide 12 will squeeze the nut located in the center of the guide plate 11 to perform the closing operation on it. At this time, multiple pressure heads 13 squeeze the nut together, which can accurately position the nut so that the nut can be centered.

[0057] like Fig.11 As shown, the guide grooves include four first guide grooves 111 and two second guide grooves 112. The four first guide grooves 111 are evenly distributed in the circumferential direction of the guide rail plate 11. The angles between the four first guide grooves 111 are 90°. The four first guide grooves 111 can meet the two-point and four-point closing processing. The distribution diagram of the die slide 12 can refer to Figure 1 .

[0058] The two second guide grooves 112 are also distributed in the circumferential direction of the guide rail plate 11, but the two second guide grooves 112 and one of the first guide grooves 111 are a group, and the angles between the three are 120°. The two second guide grooves 112 and one of the first guide grooves 111 cooperate to meet the three-point closing processing. The distribution diagram of the die slide 12 can refer to Figure 1 .

[0059] like Fig.12 As shown, in this embodiment, the guide member is an arc-shaped hole, and the six arc-shaped holes include four first arc-shaped holes 801 and two second arc-shaped holes 802, respectively. The four first arc-shaped holes 801 correspond to the four first guide grooves 111, respectively, and the two second arc-shaped holes 802 correspond to the two second guide grooves 112, respectively, wherein the distance from one end of the arc-shaped hole to the other end to the center of the guide plate 11 gradually decreases, and the arc-shaped trajectory is distributed according to the arc-shaped trajectory of the Archimedean curve.

[0060] In other technical solutions, such as Fig.18 As shown, the guide member can also be an upwardly protruding arc plate 81, the distribution pattern of the six arc plates 81 is the same as the distribution pattern of the arc holes, and a slide groove is provided at the bottom of one end of the die slide 12, and the arc plate 81 is slidably connected to the slide groove; or as Fig.19 As shown, a T-shaped slot 811 is provided on the side of the arc-shaped plate 81 , and the end of the die slide 12 is designed to be T-shaped, and the T-shaped end of the die slide 12 is slidably connected to the T-shaped slot 811 .

[0061] In other technical solutions, such as Fig. 20As shown, the guide member can also be two parallel arc plates 81, with a slide groove formed between the two arc plates 81, and a protrusion or roller is provided at the bottom of one end of the die slide 12, and the protrusion or roller is slidably connected to the slide groove between the two arc plates 81. The functions of the above three design methods are the same as that of the arc hole.

[0062] like Fig.13 As shown, a groove is provided at one end of the die slide 12 away from the pressure head 13, and a rotating shaft 121 is arranged in the groove. The roller 122 is rotatably connected to the rotating shaft 121. The roller 122 is generally a high-precision bearing. The upper and lower sides of the groove pass through the upper and lower sides of the feed platen 8 respectively. The roller 122 is located in the arc hole and is tightly attached to the inner wall of the arc hole. When the feed platen 8 rotates, the roller can roll along the trajectory of the arc hole, thereby driving the die slide 12 to reciprocate along the guide groove on the guide plate 11.

[0063] refer to Fig. 9 A central fixed bracket 19 is provided at the bottom of the guide rail plate 11. The upper end of the central fixed bracket 19 is fixedly connected to the bottom of the guide rail plate 11 by bolts, and a plurality of support rods are provided at the lower end along the circumferential direction. The central fixed bracket 19 is supported on the machine 1 by the plurality of support rods.

[0064] refer to Figure 8 , Fig. 9 The driving mechanism 5 includes a driving motor 51 and a reducer 52. The output end of the driving motor 51 is drivingly connected to the input end of the reducer 52. The output end of the reducer 52 is connected to a circumferential fixed bracket 7. The circumferential fixed bracket 7 is fixedly connected to the bottom of the feed pressure plate 8 by bolts. The driving motor 51 drives the reducer 52 to work, driving the feed pressure plate 8 to rotate together with the circumferential fixed bracket 7.

[0065] There are through holes in the middle of the reducer 52 and the circumferential fixed bracket 7. The lower end of the support rod can pass through the through hole to be fixedly connected to the machine table 1, and the positioning block 22 can move up and down through the through hole to be inserted into the center position of the guide plate 11.

[0066] During processing, the ejection mechanism lifts the nut to the center position of multiple pressure heads 13 (i.e., the center of the guide plate 11), and the height is adapted to the operating height of the pressure heads 13. Then the driving mechanism 5 drives the feed platen 8 to rotate. During the rotation of the feed platen 8, the arc-shaped hole will drive the die slide 12 to move radially along the guide plate 11. The pressure head 13 at the front end of the die slide 12 squeezes and closes the outer periphery of the nut. After completing the closing operation, the die slide 12 returns to its original position, and then the ejection mechanism moves the processed nut down to wait for unloading.

[0067] refer to Fig.13In this example, the pressure head 13 is fixed to the front end of the die slide 12 by screws, so the pressure head 13 and the die slide 12 are detachable. The pressure head 13 has various specifications to meet the closing processing of nuts of different specifications. According to different product processing requirements, pressure heads 13 of different specifications can be replaced.

[0068] like Fig.10 As shown, a blowing and unloading adjustment bracket 23 is also provided on the inner side of the machine 1, and the blowing and unloading adjustment bracket 23 is fixed to the inner side of the machine 1 by bolts, and a blowing and unloading fixing bracket 24 is provided on the blowing and unloading adjustment bracket 23, and the upper end of the blowing and unloading fixing bracket 24 extends upward to the inner side of the through hole on the central fixing bracket 19, and a blowing head 25 is installed on the top of the blowing and unloading fixing bracket 24, and the blowing head 25 can blow out wind with a higher flow rate.

[0069] A guide cylinder 17 is provided on the opposite side of the blowing head 25, and a blanking chute 18 is connected to the lower end of the guide cylinder 17. When the nut processing is completed, the ejecting mechanism moves the nut down to the position of the blowing head 25, and the blowing head 25 blows the nut into the guide cylinder 17, and then the nut falls out of the blanking chute 18.

[0070] like Figure 1 As shown, a protective cover 6 is arranged around the reducer to protect the internal electronic components. The lower end of the protective cover 6 is fixed on the machine platform 1, and the upper end is loosely matched with the circumferential fixed bracket 7.

[0071] A cover 9 is provided on the top of the feed platen 8, and the cover 9 is fixed on the feed platen 8 by bolts. A through hole is provided in the middle of the cover 9, and a guide rail pressure plate 10 is provided in the through hole. The guide rail pressure plate 10 is fixed on the guide plate 11 by bolts, and the guide rail pressure plate 10 is used to limit the die slide 12 to prevent the die slide 12 from tilting upward. A cross-shaped hole is provided in the middle of the guide rail pressure plate 10, so that the material taking mechanism 3 can put the nut between the pressure heads 13 for closing operation.

[0072] The aviation nut closing machine can meet the processing needs of two-point, three-point and four-point closing methods. For the closing processing of aviation nuts of different specifications, it is only necessary to adjust the number of die slides 12 and the installation position on the guide plate 11. It can meet the processing needs of two-point, three-point and four-point closing methods, and there is no need to replace the guide plate 11, which reduces the number and time of replacing the die slide 12. In addition, the loading and unloading of nuts are automatically completed by the machine without manual intervention, which greatly improves production efficiency. At the same time, it can meet the closing processing needs of nuts of different specifications and different closing methods.

[0073] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.

Claims

1. A closing drive assembly, characterized in that: include: A guide rail disc (11), wherein at least two guide grooves extending in a radial direction and at least two die slides (12) are arranged in a circumferential direction of the guide rail disc (11), wherein the die slides (12) are slidably connected to the guide grooves; A feed platen (8), wherein the central region of the feed platen (8) has a through hole, the guide plate (11) is located in the through hole and is coaxial with the feed platen (8), and the feed platen (8) drives the die slide (12) to move in a radial direction away from or towards the axis along the guide plate (11) by rotating; A driving mechanism (5), which is arranged below the feed platen (8) and is drivingly connected to the feed platen (8) and is used to control the rotation of the feed platen (8); At least two guide members are arranged in the circumferential direction of the feed platen (8), and the distance from one end of the guide member to the other end to the center of the guide plate (11) gradually decreases. One end of the die slide (12) extends to the closing processing position at the center of the guide plate (11), and the other end is slidably connected to the guide member. A detachable pressing head (13) is arranged at the end of each die slide (12) away from the guide member.

2. The closing drive assembly according to claim 1, characterized in that: The guide groove comprises a first guide groove (111) and a second guide groove (112); four first guide grooves (111) are provided, and the four first guide grooves (111) are evenly distributed along the circumferential direction of the guide rail plate (11); two second guide grooves (112) are provided, and the angles between the two second guide grooves (112) and one of the first guide grooves (111) are 120° to each other.

3. The closing drive assembly according to claim 2, characterized in that: The guide member comprises a first guide member and a second guide member, wherein four first guide members are provided and correspond to four first guide grooves (111) respectively, and two second guide members are provided and correspond to the second guide grooves (112) respectively.

4. The closing drive assembly according to claim 1, characterized in that: The driving mechanism (5) comprises a driving motor (51) and a reducer (52); the output end of the driving motor (51) is drivingly connected to the input end of the reducer (52); the output end of the reducer (52) is connected to a circumferential fixed bracket (7); and the circumferential fixed bracket (7) is fixedly connected to the bottom of the feed platen (8).

5. The closing drive assembly according to claim 1, characterized in that: One end of the die slide (12) away from the pressing head (13) is rotatably connected to a roller (122), and the roller (122) is located in the arc hole and can roll along the track of the arc hole.

6. An aviation nut closing machine, characterized in that: The invention comprises a closing drive assembly as claimed in any one of claims 1 to 5, and further comprises: A heating mechanism (4), the heating mechanism (4) comprising a heating coil (45) capable of moving up and down, the middle of the heating coil (45) having a through hole extending vertically, the through hole being coaxial with the guide plate (11); A material ejection mechanism, the material ejection mechanism being arranged directly below the center of the guide rail plate (11), the material ejection mechanism comprising a positioning block (22) capable of moving up and down and used for roughly positioning the product to be processed; The material taking mechanism (3) is used to clamp the product to be processed, transfer it to the through hole on the heating coil (45) for heating, and then place it on the positioning block (22).

7. The aviation nut closing machine according to claim 6, characterized in that: The material picking mechanism (3) comprises a robot support (31) fixed on the machine platform (1), a multi-axis robot (32) arranged on the robot support (31), a finger cylinder (33) arranged on the multi-axis robot (32), and two air claw seats (34) arranged on the finger cylinder (33), and each air claw seat (34) is provided with an expansion claw (35) at the lower end.

8. The aviation nut closing machine according to claim 6, characterized in that: The ejection mechanism further comprises a cylinder support (16), an ejection cylinder (20) vertically arranged on the cylinder support (16), and a positioning boss (21) connected to the output end of the ejection cylinder (20), the positioning block (22) being fixed on the top of the positioning boss (21), a positioning column (221) being arranged at the top center position of the positioning block (22), and the diameter of the positioning column (221) being smaller than the hole diameter of the product to be processed; A three-axis coordinate platform (15) for adjusting the position of a positioning block (22) is arranged at the bottom of the cylinder support (16), and the three-axis coordinate platform (15) is fixed on a coordinate platform fixing support (14).

9. The aviation nut closing machine according to claim 8, characterized in that: A central fixed bracket (19) is fixedly provided at the bottom of the guide plate (11), and a through hole is provided at the center of the central fixed bracket (19) which passes through the center of the central fixed bracket (19) and the push cylinder (20) is used to control the upward and downward movement of the positioning block (22). The product to be processed on the positioning block (22) is lifted upward by the push cylinder (20) through the through hole on the central fixed bracket (19) and moves to between the multiple pressure heads (13).

10. The aviation nut closing machine according to claim 9, characterized in that: A blowing and unloading adjustment bracket (23) is arranged on the inner side of the machine platform (1), a blowing and unloading fixed bracket (24) is arranged on the blowing and unloading adjustment bracket (23), the upper end of the blowing and unloading fixed bracket (24) extends to the inner side of the through hole on the central fixed bracket (19), and a blowing head (25) is arranged on the top end of the blowing and unloading fixed bracket (24).

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