A high-efficiency gear rotary meshing assembly device

Abstract

This utility model discloses a high-efficiency gear rotary meshing assembly device, relating to the field of gear pumps. The high-efficiency gear rotary meshing assembly device includes a turntable assembly mechanism, an internal gear handling and pressing mechanism, an internal gear rotation mechanism, an internal gear pressure head changing mechanism, an internal gear rotation adjustment assembly mechanism, and an internal gear rotary meshing pressing fixture for inserting into the external gear ring. Compared with manual assembly of the internal gear and external gear ring, this utility model features a novel structural design, replacing the manual assembly work of the internal gear and external gear ring, improving the assembly efficiency of the internal gear and external gear ring in the gear pump, reducing the accuracy requirements for gear placement, requiring only coarse positioning of the gears, ignoring gear machining and assembly errors, relying on the gear product itself for meshing, and using a spring as the meshing thrust during gear meshing, causing no damage to the tooth surface. It has technical advantages such as strong scalability, safety and reliability, high working efficiency, and simple maintenance.

Description

Technical Field

[0001] This utility model belongs to the field of gear pump technology, specifically, it relates to a high-efficiency gear rotation meshing assembly device. Background Technology

[0002] An internal gear pump is a positive displacement pump, consisting of front and rear covers, an external gear ring, and an eccentrically mounted internal gear. There is a difference in the number of teeth between the internal gear and the external gear ring. During one rotation of the internal gear, several closed spaces with continuously expanding and contracting volumes are formed between the tooth tips of the internal gear and the tooth valleys of the external gear ring. When the volume expands, a vacuum is generated at the pump suction chamber, drawing liquid into the pump. When the volume contracts, pressure is generated at the pump discharge chamber, discharging the liquid out of the pump. This cycle repeats, thus completing the pump's suction and discharge process.

[0003] Currently, the assembly of many pairs of internal meshing gears is mostly done manually. The manual assembly process has some limitations. The assembly is done manually. Workers use clamps to fix the external gear ring. The placement accuracy of the external gear ring is required. Then the internal gear is placed in the meshing position, and the two are meshed and pressed together. This is a repetitive mechanized operation with low automation and low assembly efficiency. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a highly efficient gear rotation meshing assembly device that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A high-efficiency gear rotary meshing assembly device includes a turntable assembly mechanism, an internal gear handling and pressing mechanism, an internal gear rotation mechanism, an internal gear pressure head changing mechanism, an internal gear rotation adjustment assembly mechanism, and an internal gear rotary meshing and pressing fixture for inserting an external gear ring. The internal gear rotary meshing and pressing fixture for inserting an external gear ring is connected to the turntable assembly mechanism. The internal gear handling and pressing mechanism consists of a column support fixing plate, a fixing column, a connecting plate, a linear module, a servo motor, a slider fixing plate, a cylindrical cylinder mounting plate, a cylindrical cylinder, a linear guide rail, a gripper mounting plate, a fixed base, a floating joint, and an IV image recognition sensor. The internal gear... The rotating mechanism consists of a bearing housing, a square cylinder, a cylinder fixing plate, a rack, a bearing cover plate, a deep groove ball bearing, a metal collar, a gear ring, an internal gear rotating shaft, a metal washer, a locking nut, and a connecting key; the internal gear pressure head changing mechanism consists of an internal gear sliding head, a knob plunger, a floating column, a spring, a flat key, an internal gear suction cup, a fiber optic sensor, a fiber optic fixing sheet metal, and a proximity sensor; the internal gear rotation adjustment assembly mechanism consists of a guide shaft, a tooling placement plate, a reducer, a servo motor, a tooling base plate, a tooling bearing plate, a product support column, a positioning pin, a hinge pin, a hinge bolt, a knob, and a base.

[0007] Preferably, the turntable assembly mechanism consists of a cam divider, a rotating disk, an intermediate fixed disk, and a tooling for the internal gear to rotate and mesh with the external gear ring; the turntable assembly mechanism is located in the middle of the equipment, the cam divider is mounted on the frame, its rotating part is fixedly connected to the rotating disk, and its fixed part is fixedly connected to the intermediate fixed disk, the rotating disk is equipped with an automatic external gear ring feeding tooling, an internal gear to rotate and mesh with the external gear ring tooling, and an automatic unloading tooling after the internal gear and the external gear ring are assembled.

[0008] Preferably, the column support fixing plate is mounted on the frame, the fixing column is mounted and connected to the column support fixing plate, the connecting plate is fixedly connected to the front of the two fixing columns, the linear module is fixedly mounted on the connecting plate, the servo motor is fixedly mounted on the connecting plate and is used to drive the linear module to operate, the slider fixing plate is fixedly connected to the slider of the linear module, the cylindrical cylinder is fixedly connected to the slider fixing plate through the cylindrical cylinder mounting plate, the linear guide rail is set on the front of the slider fixing plate, the gripper mounting plate is slidably connected to the linear guide rail, the fixed seat and the internal gear rotating mechanism are fixedly mounted on the front of the gripper mounting plate, the floating joint is fixedly connected to the telescopic end of the cylindrical cylinder, the fixed seat is connected to the floating joint of the cylindrical cylinder, the cylindrical cylinder can carry the gripper mounting plate and the internal gear rotating mechanism to move up and down along the linear guide rail, and the IV image recognition sensor is fixedly mounted below the connecting plate to detect whether the internal gear has rotated to the correct position.

[0009] Preferably, the bearing housing is fixedly connected to the gripper mounting plate, and the square cylinder is indirectly fixed to the bearing housing through a cylinder fixing plate. One side of the cylinder fixing plate is rigidly connected to the bearing housing, and the other side is fixed to the cylinder body of the square cylinder. One end of the rack is fixedly connected to the telescopic end of the square cylinder. The bearing cover plate is fixed to the upper and lower ends of the bearing housing by threaded connection for encapsulating and positioning the deep groove ball bearing. The deep groove ball bearing is embedded in the inner hole of the bearing cover plate. The metal collar is sleeved on the internal gear rotating shaft and closely attached to the inner ends of the upper and lower deep groove ball bearings. The gear ring is sleeved on the internal gear rotating shaft and located between the two metal shaft rings. The internal gear rotating shaft and the gear ring are fixedly connected by a connecting key. The internal gear rotating shaft passes through the bearing cover plate, the deep groove ball bearing, the metal shaft ring, and the center hole of the gear ring in sequence. The metal washer is sleeved on the top end of the internal gear rotating shaft. The locking nut is connected to the end of the internal gear rotating shaft by threads. By tightening the locking nut, an axial preload is generated, which sequentially presses the metal washer, the gear ring, the metal shaft ring, and the deep groove ball bearing. The rack meshes with the gear ring.

[0010] Preferably, the internal gear sliding head is inserted into the central hole of the internal gear rotating shaft. The internal gear sliding head is assembled and connected to the internal gear rotating shaft via a knob plunger. The knob plunger is threadedly connected to the internal gear rotating shaft. The floating column is installed on the internal gear sliding head with an interference fit. A spring is disposed between the floating column and the internal gear sliding head. The flat key is embedded in the keyway of the internal gear sliding head. Through the cooperation with the keyway corresponding to the internal gear rotating shaft, it provides a guiding constraint for the internal gear pressure head changing mechanism to float up and down. The internal gear suction cup is fixedly connected to the lower end face of the internal gear sliding head and is connected to a vacuum generator through a pipeline. It uses negative pressure to adsorb the internal gear. The fiber optic sensor is threadedly connected to the fiber optic fixing sheet metal, which is fixedly connected to the internal gear rotating shaft. The proximity sensor is threadedly connected to the internal gear rotating shaft. The detection end of the proximity sensor is inserted into the central hole of the internal gear rotating shaft and is used to detect the position status of the internal gear pressure head changing mechanism.

[0011] Preferably, the base is fixedly mounted on the frame, the guide shaft is fixedly connected to the base, the tooling placement plate is fixedly connected to the guide shaft, the reducer is fixedly mounted below the tooling placement plate, the second servo motor is mounted below the reducer, the output shaft of the second servo motor is connected to the input shaft of the reducer via a coupling, the first tooling base plate is fixedly connected to the output shaft of the reducer, the tooling support plate is set on the first tooling base plate, the product support column is threadedly connected to the tooling support plate, two product support columns are threadedly connected to the tooling support plate, two hinge pins are inserted into the pin holes of the first tooling base plate, two hinge bolts are sleeved on the pin shaft ends of the two hinge pins, and the bolts are adjusted by hinged engagement with the pin shafts to achieve rotation around the hinge pins, and the first knob is threadedly connected to the upper end of the first two hinge bolts.

[0012] Preferably, the internal gear rotating and meshing press-fitting fixture for the external gear ring consists of a fixture base plate two, an internal gear quick-change fixture plate, an external gear ring positioning table, an external gear ring limiting pin, a positioning post, an internal gear positioning pin shaft, two springs, two positioning pins, two hinge bolts, and two knobs. The fixture base plate two is fixedly connected to the surface of the rotating disk. The internal gear quick-change fixture plate is connected to the fixture base plate two by mounting bolts. The external gear ring positioning table is detachably connected to the internal gear quick-change fixture plate by fixing bolts. The external gear ring limiting pin is inserted into the pin hole of the external gear ring positioning table and is interference-fitted with the pin hole. The positioning post is fixedly connected to the external gear ring positioning table. Below the gear ring positioning platform, the internal gear positioning pin passes through the center hole of the external gear ring positioning platform and the guide hole of the positioning column in sequence to form an axial positioning assembly, and is slidably connected with the positioning column. The second spring is sleeved on the internal gear positioning pin and is axially limited between the lower end face of the external gear ring positioning platform and the upper end face of the positioning column. The two positioning pins are threadedly connected to the pin holes of the tooling base plate. The two hinge bolts are sleeved on the pin ends of the positioning pins. Through the hinged cooperation between the bolt rod and the pin, the bolt can be rotated and adjusted around the positioning pins. The two knobs are respectively fixedly installed on the upper ends of the hinge bolts.

[0013] Preferably, the internal gear handling and pressing mechanism can drive the internal gear rotation mechanism and the internal gear pressing head changing mechanism to move horizontally left and right and vertically up and down. The horizontal left and right movement is achieved by a servo motor driving a linear module for handling the internal gear; the vertical up and down movement is achieved by the retraction and extension of a cylindrical cylinder for rotating and pressing the gripped internal gear into the external gear ring.

[0014] Furthermore, the internal gear pressure head changing mechanism is mounted on the internal gear rotating shaft and can rotate with the internal gear rotating shaft. The internal spring can drive the internal gear pressure head changing mechanism to float up and down along the flat key. During the internal gear assembly process, when the internal gear and the external gear ring are not properly meshed, the spring is in a compressed state and the mechanism does not press down. When the internal gear and the external gear ring are properly meshed, the spring is in an extended state and the mechanism presses down to press the internal gear into the external gear ring.

[0015] Furthermore, the second servo motor drives the reducer to rotate, which in turn drives the first tooling base plate to rotate. The first tooling base plate drives the tooling support plate and the product support column to rotate. The internal gear is positioned on the product support column by the first positioning pin, and is thus driven to rotate, so that it rotates to a state that cooperates with the internal gear suction cup, so that the internal gear suction cup can pick up the internal gear.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0017] Compared with manual assembly of internal gears and external gear rings, this utility model has a novel structural design that can replace the work of workers assembling internal gears and external gear rings, improve the assembly efficiency of internal gears and external gear rings in gear pumps, reduce the requirements for gear placement accuracy, and only require coarse positioning of the gears. It ignores the processing and assembly errors of the gears, and relies on the gear products themselves for meshing. When the gears mesh, a spring is used as the meshing thrust, which does not damage the tooth surface. It has technical advantages such as strong scalability, safety and reliability, high working efficiency, and simple maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the turntable assembly mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal gear handling and pressing mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal gear rotating mechanism of this utility model;

[0022] Figure 5 This is a cross-sectional schematic diagram of the internal gear rotating mechanism of this utility model;

[0023] Figure 6 This is a schematic diagram of the internal gear pressure head changing mechanism of this utility model;

[0024] Figure 7 This is a cross-sectional schematic diagram of the internal gear pressure head changing mechanism of this utility model;

[0025] Figure 8This is a schematic diagram of the internal gear rotation adjustment assembly mechanism of this utility model;

[0026] Figure 9 This is a schematic diagram of the tooling for pressing an internal gear into an external gear ring in the rotational meshing of the present invention;

[0027] Figure 10 This is a schematic cross-sectional view of the tooling for pressing an internal gear into an external gear ring, which is part of this utility model.

[0028] In the diagram: 1. Turntable assembly; 11. Cam divider; 12. Rotary disk; 13. Intermediate fixed disk; 2. Internal gear handling and pressing mechanism; 21. Column support fixing plate; 22. Fixed column; 23. Connecting plate; 24. Linear module; 25. Servo motor 1; 26. Slider fixing plate; 27. Circular cylinder mounting plate; 28. Circular cylinder; 29. ​​Linear guide rail; 290. Gripper mounting plate; 291. Fixed seat; 292. Floating joint; 293. IV image recognition sensor;

[0029] 3. Internal gear rotating mechanism; 31. Bearing housing; 32. Square cylinder; 33. Cylinder fixing plate; 34. Rack; 35. Bearing cover plate; 36. Deep groove ball bearing; 37. Metal collar; 38. Gear ring; 39. Internal gear rotating shaft; 390. Metal washer; 391. Locking nut; 392. Connecting key;

[0030] 4. Internal gear pressure head changing mechanism; 41. Internal gear sliding head; 42. Knob plunger; 43. Floating column; 44. Spring 1; 45. Flat key; 46. Internal gear suction cup; 47. Fiber optic sensor; 48. Fiber optic fixing sheet metal; 49. Proximity sensor;

[0031] 5. Internal gear rotation adjustment assembly mechanism; 51. Guide shaft; 52. Tooling placement plate; 53. Reducer; 54. Servo motor II; 55. Tooling base plate I; 56. Tooling bearing plate; 57. Product support column; 58. Positioning pin I; 59. Hinge pin; 590. Hinged bolt I; 591. Knob I; 592. Base;

[0032] 6. Internal gear rotating and meshing into the external gear ring tooling; 61. Tooling base plate two; 62. Internal gear quick-change tooling plate; 63. External gear ring positioning table; 64. External gear ring limiting pin; 65. Positioning column; 66. Internal gear positioning pin shaft; 67. Spring two; 68. Positioning pin two; 69. Sliding bolt two; 690. Knob two. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0034] Example:

[0035] Reference Figures 1-10 A high-efficiency gear rotation meshing assembly device includes a turntable assembly mechanism 1, an internal gear handling and pressing mechanism 2, an internal gear rotation mechanism 3, an internal gear pressure head changing mechanism 4, an internal gear rotation adjustment assembly mechanism 5, and an internal gear rotation meshing pressing-in external gear ring tooling 6. The internal gear rotation meshing pressing-in external gear ring tooling 6 is connected to the turntable assembly mechanism 1. The internal gear handling and pressing mechanism 2 consists of a column support fixing plate 21, a fixing column 22, a connecting plate 23, a linear module 24, a servo motor 25, a slider fixing plate 26, a cylindrical cylinder mounting plate 27, a cylindrical cylinder 28, a linear guide rail 29, a gripper mounting plate 290, a fixed base 291, a floating joint 292, and an IV image recognition sensor 293. The internal gear rotation mechanism 3 consists of a bearing seat 31 and a square cylinder 32. The cylinder fixing plate 33, rack 34, bearing cover plate 35, deep groove ball bearing 36, metal collar 37, gear ring 38, internal gear rotating shaft 39, metal washer 390, locking nut 391, and connecting key 392 are composed of: internal gear pressure head changing mechanism 4, internal gear sliding head 41, knob plunger 42, floating column 43, spring 44, flat key 45, internal gear suction cup 46, fiber optic sensor 47, fiber optic fixed sheet metal 48, and proximity sensor 49 are composed of: internal gear rotation adjustment assembly mechanism 5, guide shaft 51, tooling placement plate 52, reducer 53, servo motor 54, tooling base plate 55, tooling bearing plate 56, product support column 57, positioning pin 58, hinge pin 59, hinge bolt 590, knob 591, and base 592 are composed of:

[0036] The turntable assembly mechanism 1 consists of a cam divider 11, a rotating disk 12, an intermediate fixed disk 13, and an internal gear rotating meshing and pressing device 6 for pressing the external gear ring. The turntable assembly mechanism 1 is located in the middle of the equipment. The cam divider 11 is mounted on the frame. Its rotating part is fixedly connected to the rotating disk 12, and its fixed part is fixedly connected to the intermediate fixed disk 13. The rotating disk 12 is equipped with an automatic external gear ring feeding device, an internal gear rotating meshing and pressing device 6 for pressing the external gear ring, and an automatic unloading device after the internal gear and the external gear ring are assembled.

[0037] A column support fixing plate 21 is mounted on the frame, a fixing column 22 is mounted and connected to the column support fixing plate 21, a connecting plate 23 is fixedly connected to the front of the two fixing columns 22, a linear module 24 is fixedly mounted on the connecting plate 23, a servo motor 25 is fixedly mounted on the connecting plate 23 and is used to drive the linear module 24, a slider fixing plate 26 is fixedly connected to the slider of the linear module 24, a cylindrical cylinder 28 is fixedly connected to the slider fixing plate 26 through a cylindrical cylinder mounting plate 27, and a linear guide rail 29 is set on the front of the slider fixing plate 26. The gripper mounting plate 290 is slidably connected to the linear guide rail 29. The fixed seat 291 and the internal gear rotating mechanism 3 are fixedly installed on the front of the gripper mounting plate 290. The floating joint 292 is fixedly connected to the telescopic end of the cylindrical cylinder 28. The fixed seat 291 is connected to the floating joint 292 of the cylindrical cylinder 28. The cylindrical cylinder 28 can carry the gripper mounting plate 290 and the internal gear rotating mechanism 3 to move up and down along the linear guide rail 29. The IV image recognition sensor 293 is fixedly installed below the connecting plate 23 to detect whether the internal gear has rotated into place.

[0038] The bearing housing 31 is fixedly connected to the gripper mounting plate 290. The square cylinder 32 is indirectly fixed to the bearing housing 31 through the cylinder fixing plate 33. One side of the cylinder fixing plate 33 is rigidly connected to the bearing housing 31, and the other side is fixed to the cylinder body of the square cylinder 32. One end of the rack 34 is fixedly connected to the telescopic end of the square cylinder 32. The bearing cover plate 35 is fixed to the upper and lower ends of the bearing housing 31 by threaded connection and is used to encapsulate and position the deep groove ball bearing 36. The deep groove ball bearing 36 is embedded in the inner hole of the bearing cover plate 35. The metal ring 37 is sleeved on the internal gear rotating shaft 39 and is tightly attached to the inner end face of the upper and lower deep groove ball bearings 36. The rack 34 is mounted on the internal gear rotating shaft 39 and located between two metal rings 37. The internal gear rotating shaft 39 and the gear ring 38 are fixedly connected by a connecting key 392. The internal gear rotating shaft 39 passes through the center holes of the bearing cover plate 35, the deep groove ball bearing 36, the metal ring 37 and the gear ring 38 in sequence. The metal washer 390 is mounted on the top of the internal gear rotating shaft 39. The locking nut 391 is connected to the end of the internal gear rotating shaft 39 by threads. By tightening the locking nut 391, an axial preload is generated, which sequentially presses the metal washer 390, the gear ring 38, the metal ring 37 and the deep groove ball bearing 36. The rack 34 is meshed with the gear ring 38.

[0039] The internal gear sliding head 41 is inserted into the center hole of the internal gear rotating shaft 39. The internal gear sliding head 41 is assembled and connected to the internal gear rotating shaft 39 through a knob plunger 42. The knob plunger 42 is threadedly connected to the internal gear rotating shaft 39. The floating column 43 is installed on the internal gear sliding head 41 with an interference fit. A spring 44 is disposed between the floating column 43 and the internal gear sliding head 41. A flat key 45 is embedded in the keyway of the internal gear sliding head 41. The key 45, through its cooperation with the keyway corresponding to the internal gear rotating shaft 39, facilitates the replacement of the internal gear pressure head. The forming mechanism 4 provides a guide constraint for vertical floating. The internal gear suction cup 46 is fixedly connected to the lower end face of the internal gear sliding head 41 and is connected to the vacuum generator through a pipeline. The internal gear is adsorbed by negative pressure. The fiber optic sensor 47 is threadedly connected to the fiber optic fixing sheet metal 48, which is fixedly connected to the internal gear rotating shaft 39. The proximity sensor 49 is threadedly connected to the internal gear rotating shaft 39, and the detection end of the proximity sensor 49 is inserted into the center hole of the internal gear rotating shaft 39 to detect the position status of the internal gear pressure head changing mechanism 4.

[0040] The base 592 is fixedly installed on the frame, the guide shaft 51 is fixedly connected to the base 592, the tooling placement plate 52 is fixedly connected to the guide shaft 51, the reducer 53 is fixedly installed below the tooling placement plate 52, the second servo motor 54 is installed below the reducer 53, the output shaft of the second servo motor 54 is connected to the input shaft of the reducer 53 through a coupling, the first tooling base plate 55 is fixedly connected to the output shaft of the reducer 53, the tooling support plate 56 is set on the first tooling base plate 55, the product support column 57 is threadedly connected to the tooling support plate 56, the two product support columns 57 are threadedly connected to the tooling support plate 56, the two hinge pins 59 are inserted into the pin holes of the first tooling base plate 55, the two hinge bolts 590 are sleeved on the pin ends of the two hinge pins 59, and the bolts are adjusted by hinged engagement with the pins to rotate around the hinge pins 59, and the knob 591 is threadedly connected to the upper end of the two hinge bolts 590.

[0041] The internal gear rotating and meshing pressing fixture 6 for the external gear ring consists of a fixture base plate 61, an internal gear quick-change fixture plate 62, an external gear ring positioning table 63, an external gear ring limiting pin 64, a positioning post 65, an internal gear positioning pin shaft 66, a spring 67, a positioning pin 68, a hinge bolt 69, and a knob 690. The fixture base plate 61 is fixedly connected to the surface of the rotating disk 12. The internal gear quick-change fixture plate 62 is connected to the fixture base plate 61 by mounting bolts. The external gear ring positioning table 63 is detachably connected to the internal gear quick-change fixture plate 62 by fixing bolts. The external gear ring limiting pin 64 is inserted into the pin hole of the external gear ring positioning table 63 and is interference-fitted with the pin hole. The positioning post 65 is fixedly connected to the internal gear ring positioning table 63. Below the external gear ring positioning platform 63, the internal gear positioning pin 66 passes through the center hole of the external gear ring positioning platform 63 and the guide hole of the positioning post 65 in sequence to form an axial positioning assembly, and is slidably connected with the positioning post 65. The second spring 67 is sleeved on the internal gear positioning pin 66 and is axially limited between the lower end face of the external gear ring positioning platform 63 and the upper end face of the positioning post 65. The two positioning pins 68 are threadedly connected to the pin holes of the tooling base plate 61. The two hinge bolts 69 are sleeved on the pin ends of the positioning pins 68. Through the hinged cooperation between the bolt rod and the pin, the bolt can be rotated and adjusted around the positioning pins 68. The two knobs 690 are respectively fixedly installed on the upper ends of the hinge bolts 69.

[0042] The internal gear handling and pressing mechanism 2 can drive the internal gear rotating mechanism 3 and the internal gear pressing head changing mechanism 4 to move horizontally left and right and vertically up and down. The horizontal left and right movement is achieved by the servo motor 25 driving the linear module 24, which is used to handle the internal gear. The vertical up and down movement is achieved by the retraction and extension of the cylindrical cylinder 28, which is used to rotate and press the gripped internal gear into the external gear ring.

[0043] The internal gear pressure head changing mechanism 4 is mounted on the internal gear rotating shaft 39 and can rotate with the internal gear rotating shaft 39. The internal spring 44 can drive the internal gear pressure head changing mechanism 4 to float up and down along the flat key 45. During the internal gear assembly process, when the internal gear and the external gear ring are not properly meshed, the spring 44 is in a compressed state and the mechanism does not press down. When the internal gear and the external gear ring are properly meshed, the spring 44 is in an extended state and the mechanism presses down to press the internal gear into the external gear ring.

[0044] Servo motor 2 54 drives reducer 53 to rotate, which in turn drives tooling base plate 1 55 to rotate. Tooling base plate 1 55 drives tooling support plate 56 and product support column 57 to rotate. The internal gear is positioned on the product support column 57 by positioning pin 1 58, and is thus driven to rotate, so that it rotates to a state that cooperates with internal gear suction cup 46, so that internal gear suction cup 46 can pick up the internal gear.

[0045] Before the equipment is started, the cam divider 11, the rotating disk 12, and the intermediate fixed disk 13 are in the initial alignment state. At this time, the external gear ring automatic feeding fixture will transport the external gear ring to the external gear ring automatic feeding fixture station on the rotating disk 12, and the external gear ring will be initially positioned in the fixture.

[0046] The cam divider 11 receives signals from the control system. Its internal cam curve drives the roller, causing the rotating part to drive the rotating disk 12 to rotate intermittently. Each rotation is precisely indexed, moving the tooling station carrying the outer gear ring to the assembly station corresponding to the tooling 6 that rotates and engages with the internal gear. At the same time, the tooling station that has been assembled is moved to the automatic unloading tooling station after the internal gear and the outer gear ring are assembled. The empty tooling station waiting to be unloaded moves back to the automatic loading tooling station for the outer gear ring, realizing the cyclical flow of loading, assembly, and unloading stations. During the intermittent pauses of the rotating disk 12, the mechanisms at the corresponding stations complete their respective operations. After the operations are completed, the cam divider 11 drives the rotating disk 12 to rotate again, entering the next work cycle. In this process, tooling with different functions is integrated on the rotating disk 12. The rotation of the rotating disk 12 enables orderly connection between stations, avoiding the chaos and inefficiency of manual handling or single-station operation, reducing waiting time between processes, and ensuring the continuity of the assembly process.

[0047] When the control system issues the internal gear handling command, the servo motor 25, linear module 24 and other components are initialized and in a ready-to-move state. At this time, the internal gear rotation adjustment component mechanism 5 has adjusted the internal gear to the adsorption position, and the internal gear suction cup 46 completes the adsorption of the internal gear.

[0048] Servo motor 25 starts and drives slider fixing plate 26 to move horizontally through the transmission mechanism of linear module 24 according to preset motion parameters. The internal gear rotation mechanism 3 and internal gear pressure head changing mechanism 4 connected to slider fixing plate 26 move together. From the internal gear rotation adjustment component mechanism 5, it moves to the internal gear rotation meshing and pressing external gear ring tooling 6 of turntable component mechanism 1. During the movement, IV image recognition sensor 293 monitors the internal gear status in real time to prepare for subsequent pressing.

[0049] When the slider of the linear module 24 moves to the preset target position, the servo motor 25 stops running, and the internal gear is transported to the top of the assembly station to complete the horizontal transport action. After the horizontal transport is in place, the cylindrical cylinder 28 receives the pressing command, and compressed air is introduced into the cylinder inlet. The piston inside the cylinder begins to extend under the action of air pressure. The extension end of the cylindrical cylinder 28 pushes the fixed seat 291 through the floating joint 292. The fixed seat 291 is connected to the gripper mounting plate 290. The gripper mounting plate 290 slides down along the linear guide rail 29, driving the internal gear rotation mechanism 3 and the internal gear pressure head changing mechanism 4 to move down together. The internal gear gradually approaches the external gear ring.

[0050] During the pressing process, the internal gear rotation mechanism 3 is started simultaneously, causing the internal gear to rotate and press down at the same time, attempting to mesh with the external gear ring. At this time, the IV image recognition sensor 293 continuously monitors the rotation status of the internal gear. If the rotation is in place and the meshing is normal, the cylindrical cylinder 28 continues to press down to complete the assembly. If an abnormality is detected, such as failure to rotate in place or meshing jamming, the control system can adjust in time or issue an alarm to avoid forcibly pressing and damaging the gear. After pressing is completed, the air inlet of the cylindrical cylinder 28 is switched, the piston retracts, and drives the gripper mounting plate 290 and related mechanisms to reset upward along the linear guide rail 29, returning to the initial waiting position, ready for the next handling and pressing task. The cylindrical cylinder 28, combined with the design of the floating joint 292, gives the pressing process a certain degree of flexibility, which can buffer the pressing impact. At the same time, the IV image recognition sensor 293 monitors in real time and intervenes in time when an abnormality is detected, effectively protecting the gear tooth surface, reducing the risk of gear damage caused by hard impact or improper assembly, and improving the product yield.

[0051] When the equipment starts, components such as bearing housing 31, square cylinder 32, rack 34, gear ring 38, and internal gear rotating shaft 39 are in their initial state. Deep groove ball bearing 36 and metal shaft ring 37 have completed pre-tightening assembly and are ready for stable rotation. When the internal gear conveying and pressing mechanism 2 transports the internal gear to the assembly station for pressing, the internal gear rotating mechanism 3 enters its working state. The square cylinder 32 receives the rotation command, and compressed air is introduced into the cylinder's inlet. The piston extends or retracts, driving the rack 34 to perform linear reciprocating motion. The rack 34 meshes with the gear ring 38, converting the linear motion of the rack 34 into the rotational motion of the gear ring 38. The gear ring 38 is circumferentially fixed to the internal gear rotating shaft 39 via the connecting key 392. When the gear ring 38 rotates, it drives the internal gear rotating shaft 39 to rotate synchronously. The lower end of the internal gear rotating shaft 39 is connected to the internal gear pressure head changing mechanism 4, which causes the internal gear to rotate together with the rotating shaft, realizing the rotational meshing action of the internal gear during the press-fitting process. The deep groove ball bearing 36 is embedded in the inner hole of the bearing cover plate 35. The bearing cover plate 35 is fastened to the upper and lower ends of the bearing seat 31 by threads, which plays a sealing role for the deep groove ball bearing 36, restricts the axial displacement of the bearing, provides radial support for the internal gear rotating shaft 39, and ensures the coaxiality and stability of the internal gear rotating shaft 39.

[0052] When it is necessary to replace the internal gear pressure head to adapt to different specifications of internal gears, the operator loosens the knob plunger 42 to disconnect the internal gear sliding head 41 from the internal gear rotating shaft 39, pulls the old internal gear pressure head changing mechanism 4 from the internal gear rotating shaft 39, and completes the disassembly of the old pressure head. Then, a pressure head mechanism that is compatible with the new internal gear specifications is selected, the internal gear sliding head 41 is inserted into the center hole of the internal gear rotating shaft 39, the flat key 45 is adjusted to align with the corresponding keyway of the internal gear rotating shaft 39, and after insertion, the knob plunger 42 is tightened to reliably connect the internal gear sliding head 41 with the internal gear rotating shaft 39, thus completing the pressure head changing. The design of components such as the knob plunger 42 and the flat key 45 enables the quick disassembly and installation of the internal gear pressure head changing mechanism 4. The changing operation is simple and time-saving, and can quickly adapt to the assembly requirements of different specifications of internal gears, improving the equipment's flexibility in handling multi-variety, small-batch production.

[0053] After the internal gear rotation adjustment assembly 5 adjusts the internal gear to the adsorption position, the internal gear suction cup 46 is connected to the vacuum generator through the pipeline. The vacuum generator is started and the air in the contact area between the suction cup and the internal gear is extracted to form a negative pressure environment. Under the action of atmospheric pressure, the internal gear is tightly adsorbed on the lower end face of the suction cup. The fiber optic sensor 47 detects the adsorption signal of the internal gear (change in light occlusion) and feeds it back to the control system to confirm that the adsorption is complete.

[0054] During pressing, the internal gear rotates with the internal gear rotating mechanism 3 and is simultaneously pressed down by the internal gear conveying pressing mechanism 2. If the internal gear and the outer gear ring are not properly meshed, the spring 44 is compressed. Relying on the elastic force of the spring 44, the internal gear pressing head changing mechanism 4 floats upward along the guide of the flat key 45 to avoid forcibly pressing down and damaging the gear. When the internal gear and the outer gear ring are properly meshed, the spring 44 returns to its extended state, and the mechanism presses down to stably press the internal gear into the outer gear ring. The proximity sensor 49 detects the position status of the internal gear pressing head changing mechanism 4 in real time (such as the floating limit position and the pressing position) to provide feedback to the control system and ensure that the pressing process is safe and controllable.

[0055] When different specifications of internal gears need to be assembled, the operator loosens knob 591, and the hinge bolt 590 rotates around the hinge pin 59 to release the fixing constraint on the tooling support plate 56. According to the specifications of the new internal gear, a suitable tooling support plate 56 and product support column 57 are selected. The tooling support plate 56 is placed on the tooling base plate 55, and the position is adjusted so that the hinge pin 59 is aligned with the corresponding pin hole of the tooling support plate 56. The hinge bolt 590 is rotated, and knob 591 is tightened to complete the tooling change. Then, the internal gear is assembled. The wheel is placed on the product support column 57. The positioning pin 58 cooperates with the positioning hole of the internal gear to achieve precise positioning of the internal gear on the tooling support plate 56. This ensures the positional accuracy of the internal gear in subsequent rotation adjustment and adsorption. The quick-change structure composed of hinge pin 59, hinge bolt 590, and knob 591 makes it easy and quick to replace components such as tooling support plate 56 and product support column 57. It can quickly adapt to the positioning requirements of internal gears of different sizes and shapes, and improve the equipment's compatibility with diverse products.

[0056] The control system issues a rotation adjustment command for the internal gear, the servo motor 2 54 starts, and outputs rotational motion, which is transmitted to the input shaft of the reducer 53 through the coupling. The reducer 53 reduces the speed of the servo motor 2 54 and increases the torque, and then outputs the power to the tooling base plate 1 55, which drives the tooling base plate 1 55 to rotate. The tooling support plate 56 rotates with the tooling base plate 1 55, and the product support column 57 and the internal gear placed in the position rotate synchronously.

[0057] During the rotation of the internal gear, when the internal gear rotates to an angle position that matches the internal gear suction cup 46 (such as the internal gear tooth groove corresponding to the suction cup adsorption structure), the servo motor 2 54 stops running, the internal gear is adjusted into position, and waits for the suction cup of the internal gear conveying and pressing mechanism 2 to adsorb.

[0058] During the pressing process of the internal gear with the internal gear conveying and pressing mechanism 2, the internal gear first contacts the top of the internal gear positioning pin 66. Under the action of the pressing force, the internal gear positioning pin 66 slides downward along the guide hole of the positioning post 65, and the spring 67 is compressed, converting the pressing impact force into the elastic potential energy of the spring 67, effectively buffering the impact force in the initial stage of pressing, and avoiding damage to the tooth surface due to excessive impact force when the internal gear and the outer gear ring just come into contact. At the same time, the internal gear positioning pin 66 provides precise axial guidance for the internal gear pressing, restricting the internal gear from deviating in the X and Y directions during the pressing process, ensuring that the internal gear presses against the outer gear ring along the preset central axis direction, creating conditions for smooth meshing.

[0059] The internal gear continues to press down, and under the combined action of its own rotation driven by the internal gear rotation mechanism 3 and the pressing force, it attempts to mesh with the external gear ring. If the internal gear and the external gear ring do not mesh well, the spring 44 of the internal gear pressing head changing mechanism 4 is compressed, and the mechanism does not press down. When the internal gear and the external gear ring mesh well, the spring 44 extends, and the internal gear continues to press down along the internal gear positioning pin 66 under the action of the pressing force until the internal gear is completely pressed into the external gear ring, completing the assembly. During this period, the spring 67 continuously provides buffering and elastic support to ensure a smooth pressing process. After the pressing is completed, if the spring 67 is compressed, it will push the internal gear positioning pin 66 to reset, preparing for the next assembly.

[0060] When different specifications (such as tooth shape, size, and thickness differences) of external gear rings need to be assembled, the operator uses tools to loosen the bolts fixing the external gear ring positioning table 63, removes the old external gear ring positioning table 63 from the internal gear quick-change tooling plate 62, and then pulls out the external gear ring limiting pin 64 to complete the removal of the old tooling components. If the internal gear positioning pin 66, spring 67, positioning column 65, etc. are not well adapted to the new external gear ring, they also need to be disassembled and replaced at the same time. By releasing the constraints of positioning pin 68 and hinge bolt 69, by loosening knob 690 and rotating hinge bolt 69, the fixation of the relevant components on tooling base plate 61 is released, and quick disassembly is achieved.

[0061] Select an external gear ring positioning table 63 and an external gear ring limiting pin 64 that are compatible with the new external gear ring specifications, and install them in reverse order. First, install the external gear ring positioning table 63 on the internal gear quick-change tooling plate 62 with fixing bolts, tighten the bolts and check the installation flatness and perpendicularity. Then, insert the external gear ring limiting pin 64 into the pin hole of the external gear ring positioning table 63 with an interference fit. For the internal gear positioning pin shaft 66, spring 67, positioning column 65, etc., install them in the corresponding positions according to the new tooling requirements, and re-fix them with positioning pin 68, hinge bolt 69, and knob 690 to complete the tooling change. This allows the equipment to quickly adapt to the new external gear ring assembly task. The design of components such as the internal gear quick-change tooling plate 62, positioning pin 68, hinge bolt 69, and knob 690 enables the quick disassembly and installation of tooling components such as the external gear ring positioning table 63 and external gear ring limiting pin 64, making the equipment compatible with the assembly requirements of external gear rings with different tooth shapes, sizes, and thicknesses.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A high-efficiency gear rotary meshing assembly device, characterized in that, It includes a turntable assembly mechanism (1), an internal gear handling and pressing mechanism (2), an internal gear rotation mechanism (3), an internal gear pressing head changing mechanism (4), an internal gear rotation adjustment assembly mechanism (5), and an internal gear rotation meshing and pressing device for external gear ring (6), wherein the internal gear rotation meshing and pressing device for external gear ring (6) is connected to the turntable assembly mechanism (1). The internal gear handling and pressing mechanism (2) consists of a column support fixing plate (21), a fixing column (22), a connecting plate (23), a linear module (24), a servo motor (25), a slider fixing plate (26), a cylinder mounting plate (27), a cylindrical cylinder (28), a linear guide rail (29), a gripper mounting plate (290), a fixed seat (291), a floating joint (292), and an IV image recognition sensor (293). The internal gear rotating mechanism (3) consists of a bearing seat (31), a square cylinder (32), a cylinder fixing plate (33), a rack (34), a bearing cover plate (35), a deep groove ball bearing (36), a metal collar (37), a gear ring (38), an internal gear rotating shaft (39), a metal washer (390), a locking nut (391), and a connecting key (392). The internal gear pressure head changing mechanism (4) consists of an internal gear sliding head (41), a knob plunger (42), a floating column (43), a spring (44), a flat key (45), an internal gear suction cup (46), an optical fiber sensor (47), an optical fiber fixed sheet metal (48), and a proximity sensor (49). The internal gear rotation adjustment assembly (5) consists of a guide shaft (51), a tooling placement plate (52), a reducer (53), a second servo motor (54), a first tooling base plate (55), a tooling bearing plate (56), a product support column (57), a first positioning pin (58), a hinge pin (59), a first swivel bolt (590), a first knob (591), and a base (592).

2. The efficient gear rotary meshing assembly device according to claim 1, characterized in that, The turntable assembly mechanism (1) consists of a cam divider (11), a rotating disk (12), an intermediate fixed disk (13), and an internal gear rotating and meshing tooling (6) for pressing into the external gear ring. The turntable assembly (1) is located in the middle of the equipment. The cam divider (11) is installed on the frame. Its rotating part is fixedly connected to the turntable (12), and its fixed part is fixedly connected to the middle fixed plate (13). The turntable (12) is equipped with an automatic feeding fixture for the outer gear ring, a fixture for the inner gear to rotate and mesh and press into the outer gear ring (6), and an automatic unloading fixture after the inner gear and the outer gear ring are assembled.

3. The efficient gear rotary meshing assembly device according to claim 1, characterized in that, The column support fixing plate (21) is mounted on the frame, the fixing column (22) is mounted and connected to the column support fixing plate (21), the connecting plate (23) is fixedly connected to the front of the two fixing columns (22), the linear module (24) is fixedly mounted on the connecting plate (23), the servo motor (25) is fixedly mounted on the connecting plate (23) and is used to drive the linear module (24) to operate, the slider fixing plate (26) is fixedly connected to the slider of the linear module (24), the cylindrical cylinder (28) is fixedly connected to the slider fixing plate (26) through the cylindrical cylinder mounting plate (27), and the linear guide rail (29) is set on the slider fixing plate (26). On the front, the gripper mounting plate (290) is slidably connected to the linear guide rail (29). The fixed seat (291) and the internal gear rotating mechanism (3) are fixedly installed on the front of the gripper mounting plate (290). The floating joint (292) is fixedly connected to the telescopic end of the cylindrical cylinder (28). The fixed seat (291) is connected to the floating joint (292) of the cylindrical cylinder (28). The cylindrical cylinder (28) can carry the gripper mounting plate (290) and the internal gear rotating mechanism (3) to move up and down along the linear guide rail (29). The IV image recognition sensor (293) is fixedly installed below the connecting plate (23) to detect whether the internal gear has rotated into place.

4. The high-efficiency gear rotary meshing assembly device according to claim 1, characterized in that, The bearing housing (31) is fixedly connected to the gripper mounting plate (290). The square cylinder (32) is indirectly fixed to the bearing housing (31) through the cylinder fixing plate (33). One side of the cylinder fixing plate (33) is rigidly connected to the bearing housing (31), and the other side is fixed to the cylinder body of the square cylinder (32). One end of the rack (34) is fixedly connected to the telescopic end of the square cylinder (32). The bearing cover plate (35) is fixed to the upper and lower ends of the bearing housing (31) by threaded connection and is used to encapsulate and position the deep groove ball bearing (36). The deep groove ball bearing (36) is embedded in the inner hole of the bearing cover plate (35). The metal ring (37) is sleeved on the internal gear rotating shaft (39) and closely attached to the inner end face of the upper and lower deep groove ball bearings (36). The gear ring (38) is sleeved on the inner end face of the upper and lower deep groove ball bearings (36). Located on the internal gear rotating shaft (39) and between the two metal shaft rings (37), the internal gear rotating shaft (39) and the gear ring (38) are fixedly connected by a connecting key (392). The internal gear rotating shaft (39) passes through the center holes of the bearing cover plate (35), the deep groove ball bearing (36), the metal shaft ring (37) and the gear ring (38) in sequence. The metal washer (390) is sleeved on the top end of the internal gear rotating shaft (39). The locking nut (391) is connected to the end of the internal gear rotating shaft (39) by threads. By tightening the locking nut (391), an axial preload is generated, which sequentially presses the metal washer (390), the gear ring (38), the metal shaft ring (37) and the deep groove ball bearing (36). The rack (34) is meshed with the gear ring (38).

5. The efficient gear rotary meshing assembly device according to claim 1, characterized in that, The internal gear sliding head (41) is inserted into the center hole of the internal gear rotating shaft (39). The internal gear sliding head (41) is assembled and connected to the internal gear rotating shaft (39) through a knob plunger (42). The knob plunger (42) is threadedly connected to the internal gear rotating shaft (39). The floating column (43) is installed on the internal gear sliding head (41) with an interference fit. The spring (44) is set between the floating column (43) and the internal gear sliding head (41). The flat key (45) is embedded in the keyway of the internal gear sliding head (41). The keyway, through its cooperation with the keyway corresponding to the internal gear rotating shaft (39), is for internal gears. The wheel pressure head changing mechanism (4) provides a guide constraint for vertical floating. The internal gear suction cup (46) is fixedly connected to the lower end face of the internal gear sliding head (41) and is connected to the vacuum generator through a pipeline. The internal gear is adsorbed by negative pressure. The fiber optic sensor (47) is threadedly connected to the fiber optic fixing sheet metal (48). The fiber optic fixing sheet metal (48) is fixedly connected to the internal gear rotating shaft (39). The proximity sensor (49) is threadedly connected to the internal gear rotating shaft (39). The detection end of the proximity sensor (49) is inserted into the center hole of the internal gear rotating shaft (39) to detect the position status of the internal gear pressure head changing mechanism (4).

6. The efficient gear rotary meshing assembly device according to claim 1, characterized in that, The base (592) is fixedly mounted on the frame, the guide shaft (51) is fixedly connected to the base (592), the tooling placement plate (52) is fixedly connected to the guide shaft (51), the reducer (53) is fixedly mounted below the tooling placement plate (52), the second servo motor (54) is mounted below the reducer (53), the output shaft of the second servo motor (54) is connected to the input shaft of the reducer (53) through a coupling, the first tooling base plate (55) is fixedly connected to the output shaft of the reducer (53), and the tooling support plate (56) is provided with On the tooling base plate (55), the product support column (57) is threadedly connected to the tooling bearing plate (56), and two product support columns (57) are threadedly connected to the tooling bearing plate (56). Two hinge pins (59) are inserted into the pin holes of the tooling base plate (55), and two hinge bolts (590) are sleeved on the pin ends of the two hinge pins (59). Through the hinged engagement between the bolt rod and the pin, the bolt can rotate and adjust around the hinge pin (59). The knob (591) is threadedly connected to the upper end of the two hinge bolts (590).

7. The efficient gear rotary meshing assembly device according to claim 1, characterized in that, The internal gear rotating meshing and pressing into the external gear ring tooling (6) consists of tooling base plate two (61), internal gear quick-change tooling plate (62), external gear ring positioning table (63), external gear ring limiting pin (64), positioning column (65), internal gear positioning pin shaft (66), spring two (67), positioning pin two (68), hinge bolt two (69), and knob two (690). The tooling base plate 2 (61) is fixedly connected to the surface of the rotating disk (12). The internal gear quick-change tooling plate (62) is connected to the tooling base plate 2 (61) by mounting bolts. The external gear ring positioning table (63) is detachably connected to the internal gear quick-change tooling plate (62) by fixing bolts. The external gear ring limiting pin (64) is inserted into the pin hole of the external gear ring positioning table (63) and is interference-fitted with the pin hole. The positioning pin (65) is fixedly connected below the external gear ring positioning table (63). The internal gear positioning pin shaft (66) passes through the center hole of the external gear ring positioning table (63) and the guide hole of the positioning pin (65) in sequence. An axial positioning assembly is formed and slidably connected to the positioning post (65). The second spring (67) is sleeved on the internal gear positioning pin (66) and axially limited between the lower end face of the external gear positioning platform (63) and the upper end face of the positioning post (65). The two positioning pins (68) are threadedly connected to the pin holes of the tooling base plate (61). The two hinge bolts (69) are sleeved on the pin ends of the positioning pins (68). Through the hinged cooperation between the bolt rod and the pin, the bolt can be rotated and adjusted around the positioning pins (68). The two knobs (690) are respectively fixedly installed on the upper ends of the hinge bolts (69).

8. The efficient gear rotary meshing assembly device according to claim 1, characterized in that, The internal gear handling and pressing mechanism (2) can drive the internal gear rotating mechanism (3) and the internal gear pressing head changing mechanism (4) to move horizontally left and right and vertically up and down. The horizontal left and right movement is achieved by the servo motor (25) driving the linear module (24) to handle the internal gear. Vertical up-and-down movement is achieved by the retraction and extension of the cylindrical cylinder (28), which is used to rotate and engage the held internal gear into the external gear ring.

9. A high-efficiency gear rotary meshing assembly device according to claim 5, characterized in that, The internal gear pressure head changing mechanism (4) is installed on the internal gear rotating shaft (39) and can rotate with the internal gear rotating shaft (39). The internal spring (44) can drive the internal gear pressure head changing mechanism (4) to float up and down along the flat key (45). During the internal gear assembly process, when the internal gear and the external gear ring are not properly meshed, the spring (44) is in a compressed state and the mechanism does not press down. When the internal gear and the external gear ring are properly meshed, the spring (44) is in an extended state and the mechanism presses down to press the internal gear into the external gear ring.

10. A high-efficiency gear rotary meshing assembly device according to claim 6, characterized in that, The second servo motor (54) drives the reducer (53) to rotate, which in turn drives the tooling base plate (55) to rotate. The tooling base plate (55) drives the tooling support plate (56) and the product support column (57) to rotate. The internal gear is positioned on the product support column (57) by the positioning pin (58), and is thus driven to rotate, so that it rotates to a state that cooperates with the internal gear suction cup (46), so that the internal gear suction cup (46) can pick up the internal gear.

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