Novel nose frame secondary assembly mechanism

Abstract

The utility model discloses a novel nose frame secondary assembly mechanism which comprises a rack, a positioning jig, a lifting positioning manipulator and a nose frame mounting manipulator, wherein the lifting positioning manipulator and the nose frame mounting manipulator are respectively mounted on the rack; the lifting positioning manipulator is positioned above the positioning jig and in front of the nose frame mounting manipulator; the lifting and positioning manipulator comprises a lifting and positioning up-and-down air cylinder mounted on the rack, and a lifting clamp and a positioning clamp which are distributed on an output shaft of the lifting and positioning up-and-down air cylinder front and back; the nose frame installation mechanical arm comprises a nose frame front-back driving source installed on the machine frame, a nose frame up-down air cylinder installed at the output end of the nose frame front-back driving source in a front-back moving mode, a rotary driving source installed on an output shaft of the nose frame up-down air cylinder and a nose frame clamp installed at the output end of the rotary driving source. According to the utility model, the secondary assembly process of the nose frame can be completed, the whole assembly process is simple and rapid, and the assembly efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of nose frame assembly, in particular to a novel nose frame secondary assembly mechanism. Background Art

[0002] Nasal oxygen cannula is an auxiliary tool for human oxygen inhalation. With the rapid development of society, human beings pay more and more attention to physical health and physical care, which makes nasal oxygen cannula used very widely.

[0003] Nasal oxygen cannula is generally composed of components such as a nose frame, a tee, a tube binder and a hose. During the assembly process, the hose is generally assembled with the tube binder, the tee and the nose frame in sequence. When assembling a nose frame, a dedicated nose frame assembly mechanism is generally used. For example, the nose frame secondary assembly mechanism of a nasal oxygen tube assembly machine disclosed in the authorization announcement number CN220240634U specifically discloses a positioning fixture, a nose frame positioning manipulator and a hose clamping manipulator; the positioning fixture includes a base, a nose frame positioning fixture mounted on the base so as to be flipped forward and backward through a rotating shaft, a hose positioning seat fixed in front of the nose frame positioning fixture, and a fixture driving assembly for driving the rotating shaft to rotate; the nose frame positioning manipulator includes a fixture upper and lower driving source and a first nose frame fixture and a second nose frame fixture respectively connected to the output ends of the fixture upper and lower driving source and distributed front and back; the first nose frame fixture and the second nose frame fixture both include a nose frame finger cylinder and a nose frame clamp connected to the output end of the nose frame finger cylinder; the hose clamping manipulator includes front and rear movable plates, a hose front and rear driving source for driving the front and rear movable plates to move forward and backward, a hose upper and lower driving source mounted on the front and rear movable plates, and a hose clamp connected to the output end of the hose upper and lower driving source.

[0004] However, in order to adapt to the rapid development of the market, the applicant needs to develop a nose bridge secondary assembly mechanism with a different technical solution from the above-mentioned equipment to meet the needs of different groups of people. Therefore, in order to cater to the needs of different groups of people, it is necessary to design a new nose bridge secondary assembly mechanism. Utility Model Content

[0005] In view of the problems existing in the above prior art, the purpose of the utility model is to provide a novel secondary assembly mechanism for a nose frame, which can complete the secondary assembly process of the nose frame, and the entire assembly process is simple and fast with high assembly efficiency.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] A novel nose frame secondary assembly mechanism comprises a frame, a positioning fixture, and a lifting and positioning manipulator and a nose frame installation manipulator respectively mounted on the frame; the positioning fixture is used to respectively clamp the main pipe connected to one end of the nose frame and the auxiliary pipe to be connected to the other end of the nose frame; the lifting and positioning manipulator is located above the positioning fixture and in front of the nose frame installation manipulator; the lifting and positioning manipulator comprises lifting and positioning upper and lower cylinders mounted on the frame and lifting clamps and positioning clamps distributed front and back on the output shafts of the lifting and positioning upper and lower cylinders; the lifting clamp can be used to assemble the main pipe together with the nose The nose frame is pulled upward without clamping the main pipe, and the positioning fixture can be used to clamp the head of the auxiliary pipe during the pre-assembly process of the auxiliary pipe and the nose frame to improve the stability of the auxiliary pipe; the nose frame installation manipulator includes a nose frame front and rear driving source installed on the frame, a nose frame upper and lower cylinders installed on the output end of the nose frame front and rear driving source that can move forward and backward, a rotation driving source installed on the output shaft of the nose frame upper and lower cylinders, and a nose frame clamp installed on the output end of the rotation driving source; the nose frame installation manipulator can be used to clamp the nose frame and drive the nose frame to rotate after pulling it backward, so that it can be assembled with the corresponding auxiliary pipe later. The above arrangement can facilitate the secondary assembly of the nose frame.

[0008] The following technical solutions are also included:

[0009] Furthermore, it also includes a material aligning device; the material aligning device is located below the nose frame installation manipulator; the material aligning device includes an aligning component; the aligning component includes an aligning rod that can move forward and backward and an aligning cylinder for driving the aligning rod to move forward and backward; the aligning component can be used to align the nose frame. The above arrangement can facilitate the aligning operation of the nose frame.

[0010] Furthermore, the material guarding and aligning device also includes a material guarding assembly; the material guarding assembly includes a material guarding upper and lower cylinders installed on the frame, a lifting plate installed on the output shaft of the material guarding upper and lower cylinders movably up and down, a material guarding plate installed on the lifting plate, and a material guarding clamp installed on the lifting plate; the aligning cylinder is installed on the lifting plate, and the aligning rod is located behind the material guarding plate. The above arrangement can facilitate the nose bridge to be limited before the nose bridge is aligned to prevent it from deviating from the preset route.

[0011] Furthermore, the material protection fixture includes a material protection finger cylinder installed on the lifting plate and two material protection chucks installed on the output end of the material protection finger cylinder; a semicircular material protection groove is respectively provided on the inner side of the two material protection chucks; the two material protection grooves correspond to the size of the hose, and the height of the material protection groove is higher than the top surface of the material protection plate. The above arrangement can conveniently use the material protection groove to limit the nose frame 6 without affecting the movement of the nose frame 6.

[0012] Furthermore, the lifting fixture includes a lifting finger cylinder and two lifting chucks installed downward on the output end of the lifting finger cylinder; the lifting finger cylinder is installed on the output shaft of the lifting and positioning upper and lower cylinders through a mounting plate; a semicircular lifting groove is respectively provided on the inner side of the two lifting chucks, and the two lifting grooves correspond to the size of the hose; the positioning fixture includes a positioning finger cylinder installed on the mounting plate and two positioning chucks installed downward on the output end of the positioning finger cylinder. In the above configuration, the lifting chuck can be used to limit the main pipe, and the positioning chuck can be used to clamp the secondary pipe.

[0013] Furthermore, the nose frame front and rear driving source includes a first front and rear cylinder fixed on the frame, a first front and rear slider mounted on the output shaft of the first front and rear cylinder and movably mounted on the output shaft of the first front and rear cylinder, a second front and rear cylinder mounted on the first front and rear slider and movably mounted on the output shaft of the second front and rear cylinder; the nose frame upper and lower cylinders are mounted on the second front and rear slider. The above arrangement can conveniently use the first front and rear cylinders and the second front and rear cylinders to realize the secondary movement of the nose frame fixture, that is, to push the nose frame to realize the secondary movement.

[0014] Furthermore, the rotational driving source includes a positioning plate connected to the output shafts of the upper and lower cylinders of the nose frame movably up and down, a rack mounted on the positioning plate movably left and right, a rotational driving cylinder mounted on the positioning plate and having an output shaft connected to the rack, and a gear rotatably mounted on the positioning plate and meshing with the rack; the gear is connected to the nose frame fixture so that when the rotational driving cylinder drives the rack to move left and right, the gear and the nose frame fixture can be synchronously driven to rotate, thereby achieving the purpose of driving the nose frame to rotate. The above arrangement can utilize the rotational driving cylinder in conjunction with the rack and gear to drive the nose frame fixture to rotate.

[0015] Furthermore, the nose bridge clamp comprises a nose bridge finger cylinder connected to the rotation drive source and two nose bridge clamps mounted downward on the output end of the nose bridge finger cylinder. The above arrangement can utilize the nose bridge finger cylinder to drive the two nose bridge clamps to close together so as to clamp the nose bridge.

[0016] Furthermore, the two nose bridge clamps are both in the shape of long strips, so that the two nose bridge clamps can be used to clamp both ends of the nose bridge, thereby improving the stability of the nose bridge during assembly.

[0017] The beneficial effects of the utility model are:

[0018] The utility model can complete the secondary assembly process of the nose frame, and the entire assembly process is simple and fast with high assembly efficiency. The utility model can use the lifting and positioning manipulator to lift the nose frame so that the nose frame can enter the nose frame fixture, and then use the front and rear driving sources of the nose frame to pull the nose frame backwards and then use the driving of the rotating driving source to rotate the nose frame fixture, so that the port of the nose frame can be aligned with the auxiliary pipe to be assembled, and then use the front and rear driving sources of the nose frame to drive the nose frame forward, thereby completing the secondary assembly steps of the nose frame. In addition, the utility model also has a material aligning device that can be used to align the nose frame. Therefore, the technical solution adopted by the utility model is different from the prior art, so that it can meet the needs of different groups of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 ;

[0020] Figure 2 yes Figure 1 A in the enlarged view;

[0021] Figure 3 This is a schematic diagram of the overall structure of the utility model Figure 2 ;

[0022] Figure 4 yes Figure 3 The enlarged view of point B in the figure;

[0023] Figure 5 is a schematic diagram of a rotary drive source and a nose bracket fixture of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the rotary drive source of the utility model;

[0025] Figure 7 It is a structural schematic diagram of the material protection and aligning device of the utility model;

[0026] Figure 8 This is a schematic diagram of the principle of the utility model after the workpiece is delivered into place;

[0027] Fig. 9 It is a schematic diagram of the principle of the nose bridge of the utility model after being pulled upward;

[0028] Fig.10 This is a schematic diagram of the principle of the utility model when performing the snapping operation;

[0029] Fig.11 It is a schematic diagram of the principle of the nose frame of the utility model after being rotated 180°;

[0030] Fig.12 It is a schematic diagram of the principle of the nose frame and the auxiliary pipe after the nose frame and the auxiliary pipe of the utility model are assembled.

[0031] Reference numerals:

[0032] 1. Rack; 2. Positioning fixture; 3. Lifting and positioning manipulator; 31. Lifting and positioning upper and lower cylinders; 32. Lifting fixture; 321. Lifting finger cylinder; 322. Lifting chuck; 323. Mounting plate; 324. Lifting groove; 33. Positioning fixture; 331. Positioning finger cylinder; 332. Positioning chuck; 4. Nose frame installation manipulator; 41. Nose frame upper and lower cylinders; 42. Nose frame fixture; 421. Nose frame finger cylinder; 422. Nose frame chuck; 43. First front and rear Cylinder; 44. First front and rear slider; 45. Second front and rear cylinder; 46. Second front and rear slider; 47. Positioning plate; 48. Rack; 49. Rotary drive cylinder; 50. Gear; 5. Material guarding aligning device; 51. Aligning rod; 52. Aligning cylinder; 53. Material guarding upper and lower cylinders; 54. Lifting plate; 55. Material guarding plate; 56. Material guarding fixture; 561. Material guarding finger cylinder; 562. Material guarding chuck; 563. Material guarding groove; 6. Nose frame; 7. Main pipe; 8. Sub-pipe. DETAILED DESCRIPTION

[0033] The specific implementation methods according to the present disclosure are described in detail below in conjunction with the accompanying drawings.

[0034] like Figure 1-Figure 12 As shown, a novel nose frame secondary assembly mechanism comprises a frame 1, a positioning fixture 2, and a lifting and positioning manipulator 3 and a nose frame installation manipulator 4 respectively mounted on the frame 1; the positioning fixture 2 is used to respectively clamp the main pipe 7 connected to one end of the nose frame 6 and the auxiliary pipe 8 to be connected to the other end of the nose frame 6; the lifting and positioning manipulator 3 is located above the positioning fixture 2 and in front of the nose frame installation manipulator 4; the lifting and positioning manipulator 3 comprises a lifting and positioning upper and lower cylinders 31 mounted on the frame 1 and a lifting clamp 32 and a positioning clamp 33 distributed on the output shaft of the lifting and positioning upper and lower cylinders 31 in front and back; the lifting clamp 32 can be used to lift the main pipe 7 together with the nose frame 6 upward The main pipe 7 is not clamped (i.e., the main pipe 7 is movable on the lifting clamp 32), and the positioning clamp 33 can be used to clamp the head of the auxiliary pipe 8 during the pre-assembly process of the auxiliary pipe 8 and the nose frame 6 to improve the stability of the auxiliary pipe 8; the nose frame installation manipulator 4 includes a nose frame front and rear driving source installed on the frame 1, a nose frame upper and lower cylinders 41 installed on the output end of the nose frame front and rear driving source and can be moved forward and backward, a rotation driving source installed on the output shaft of the nose frame upper and lower cylinders 41, and a nose frame clamp 42 installed on the output end of the rotation driving source; the nose frame installation manipulator 4 can be used to clamp the nose frame 6 and drive the nose frame 6 to rotate after pulling it backward, so that it can be subsequently assembled with the corresponding auxiliary pipe 8.

[0035] Herein, for the convenience of description and to distinguish between two hoses, the hose that has been assembled with one port of the nose bridge 6 is called the main hose 7 , and the other hose to be assembled with the other port of the nose bridge 6 is called the secondary hose 8 .

[0036] Therefore, the utility model can complete the secondary assembly process of the nose frame, and the entire assembly process is simple and fast, and the assembly efficiency is high. Specifically, the utility model can use the lifting and positioning manipulator to lift the nose frame 6 so that the nose frame 6 can enter the nose frame fixture 42, and then use the nose frame front and rear driving source to pull the nose frame 6 backward, and then use the driving of the rotation driving source to rotate the nose frame fixture 42, so that the port of the nose frame 6 can be aligned with the auxiliary pipe to be assembled, and then use the nose frame front and rear driving source to drive the nose frame 6 to move forward, thereby completing the secondary assembly step of the nose frame 6.

[0037] like Figure 1-Figure 4 and Figure 7 As shown, in this embodiment, the novel nose frame secondary assembly mechanism also includes a material protection aligning device 50; the material protection aligning device 50 is located below the nose frame installation manipulator 4; the material protection aligning device 50 includes an aligning assembly; the aligning assembly includes an aligning rod 51 that can move forward and backward and an aligning cylinder 52 for driving the aligning rod 51 to move forward and backward; the aligning assembly can be used to align the nose frame 6. By setting the aligning assembly, the aligning cylinder 52 can be used to drive the aligning rod 51 to move forward until the aligning rod 51 contacts the end of the nose frame 6 and pushes the nose frame 6 to move forward a certain distance, thereby completing the alignment of the nose frame 6, that is, the nose frame 6 can be moved to a preset position to avoid the situation where the assembly position is inaccurate during the subsequent assembly process with the auxiliary pipe 8.

[0038] like Figure 1-Figure 4 and Figure 7As shown, preferably, the material protection and aligning device 50 also includes a material protection assembly; the material protection assembly includes a material protection upper and lower cylinder 53 installed on the frame 1, a lifting plate 54 installed on the output shaft of the material protection upper and lower cylinder 53 movably installed up and down, a material protection plate 55 installed on the lifting plate 54, and a material protection clamp 56 installed on the lifting plate 54; the aligning cylinder 52 is installed on the lifting plate 54, and the aligning rod 51 is located behind the material protection plate 55. Specifically, the material protection clamp 56 includes a material protection finger cylinder 561 installed on the lifting plate 54 and two material protection chucks 562 installed on the output end of the material protection finger cylinder 561; a semicircular material protection groove 563 is respectively provided on the inner side of the two material protection chucks 562; the two material protection grooves 563 correspond to the size of the hose, and the height of the material protection grooves 563 is higher than the top surface of the material protection plate 55. Therefore, through the above arrangement, the nose frame 6 can be limited before the aligning assembly is activated to prevent the nose frame 6 from deviating from the preset route during the aligning process. Specifically, after the material protection upper and lower cylinders 53 drive the lifting plate 54 to rise, the material protection plate 55 presses against the bottom of the nose frame 6 to prevent it from turning downward, and then the material protection finger cylinder 561 drives the two material protection clamps 562 to close, so that the nose frame 6 is placed in the two material protection grooves 563. However, it should be noted that the nose frame 6 is movable in the two material protection grooves 563 at this time, otherwise the subsequent aligning rod 51 cannot push the nose frame 6, that is, the nose frame 6 is protected and limited but not clamped at this time; then, the aligning cylinder 52 drives the aligning rod 51 to perform the aligning operation.

[0039] like Figure 1-Figure 4 As shown, in this embodiment, the lifting fixture 32 includes a lifting finger cylinder 321 and two lifting chucks 322 installed downward on the output end of the lifting finger cylinder 321; the lifting finger cylinder 321 is installed on the output shaft of the lifting and positioning upper and lower cylinders 31 through a mounting plate 323; a semicircular lifting groove 324 is respectively provided on the inner side of the two lifting chucks 322, and the two lifting grooves 324 correspond to the size of the hose. Therefore, after the above arrangement, the lifting finger cylinder 321 can be used to drive the two lifting chucks 322 to close and then protect the main tube 7, and the two lifting grooves 324 can make the main tube 7 movable when placed in the lifting groove 324 (that is, only limit the main tube 7 and do not clamp the main tube 7), so as to prevent the nose frame 6 from being pulled backward by the nose frame installation manipulator 4.

[0040] like Figure 4 As shown, preferably, in order to enhance the lifting effect on the main tube 7, two clamping parts distributed front and back are provided on each lifting chuck 322, that is, the two lifting chucks 322 can clamp two positions of the main tube 7, thereby greatly enhancing the clamping effect of the lifting chuck 322 on the main tube 7 and preventing its deformation.

[0041] like Figure 1-Figure 4 As shown, in this embodiment, the positioning fixture 33 includes a positioning finger cylinder 331 installed on the mounting plate 323 and two positioning chucks 332 installed downward on the output end of the positioning finger cylinder 331. Therefore, through the above arrangement, the positioning finger cylinder 331 can be used to drive the two positioning chucks 332 to clamp the head of the auxiliary pipe 8, so as to enhance the stability of the auxiliary pipe 8 during assembly.

[0042] like Figure 1 As shown, in this embodiment, the nose frame forward and backward driving source includes a first forward and backward cylinder 43 fixed on the frame 1, a first forward and backward slider 44 mounted on the output shaft of the first forward and backward cylinder 43 and movably mounted thereon, a second forward and backward cylinder 45 mounted on the first forward and backward slider 44, and a second forward and backward slider 46 mounted on the output shaft of the second forward and backward cylinder 45 and movably mounted thereon; the nose frame upper and lower cylinder 41 is mounted on the second forward and backward slider 46. Therefore, through the above arrangement, the second forward and backward cylinder 45 can be used to drive the nose frame fixture 42 to achieve the first forward and backward movement, and then when the first forward and backward cylinder 43 drives the first forward and backward slider 44 mounted with the second forward and backward cylinder 45 to move forward and backward, the second forward and backward movement of the nose frame fixture 42 can be achieved.

[0043] like Figure 5 and Figure 6 As shown, in this embodiment, the rotation driving source includes a positioning plate 47 connected to the output shaft of the nose frame upper and lower cylinders 41 so as to be movable up and down, a rack 48 mounted on the positioning plate 47 so as to be movable left and right, a rotation driving cylinder 49 mounted on the positioning plate 47 and having an output shaft connected to the rack 48, and a gear 50 rotatably mounted on the positioning plate 47 and meshing with the rack 48; the gear 50 is connected to the nose frame fixture 42, so that when the rotation driving cylinder 49 drives the rack 48 to move left and right, the gear 50 and the nose frame fixture 42 can be synchronously driven to rotate, thereby achieving the purpose of driving the nose frame 6 to rotate. Therefore, after the above arrangement, the rotation driving cylinder 49 can be used to cooperate with the rack 48 and the gear 50 to drive the nose frame fixture 42 to rotate.

[0044] like Figure 5 and Figure 6 As shown, in this embodiment, the nose bridge clamp 42 includes a nose bridge finger cylinder 421 for connecting to a rotation driving source and two nose bridge clamps 422 mounted downwardly on the output end of the nose bridge finger cylinder 421. Specifically, the nose bridge finger cylinder 421 is connected to the gear 50. Therefore, through the above arrangement, the nose bridge finger cylinder 421 can be used to drive the two nose bridge clamps 422 to close together so as to clamp the nose bridge 6.

[0045] like Figure 5 and Figure 6As shown, preferably, each nose bridge clamp 422 is in the shape of an elongated strip, so that the two nose bridge clamps 422 can be used to clamp both ends of the nose bridge 6, thereby improving the stability of the nose bridge 6 during assembly.

[0046] like Figure 2 As shown, the positioning fixture 2 is provided with respective clamping ports for clamping the main pipe 7 and the auxiliary pipe 8. However, since the positioning fixture 2 is a prior art installed on a feeding mechanism, it will not be described in detail here.

[0047] Combination Figure 8-Figure 12 , the complete use process of the utility model is introduced below to better understand the utility model:

[0048] The first step, such as Figure 8 As shown, after the first port of the nose frame 6 is connected with the main pipe 7 on the positioning fixture 2 on the first assembly mechanism, the feeding mechanism moves to the new nose frame secondary assembly mechanism of the utility model. After moving into place, the auxiliary pipe 8 is also clamped at the bayonet of the positioning fixture 2 and the head is stained with glue, that is, Figure 8 Status shown.

[0049] The second step is, Fig. 9 As shown, the second front-rear air cylinder 45 drives the second front-rear slide plate 46 to move forward a certain distance, thereby driving the nose frame clamp 42 to move forward to a preset position; then, the lifting and positioning upper and lower air cylinders 31 drive the lifting clamp 32 and the positioning clamp 33 to move downward to the preset position; then, the lifting finger cylinder 321 uses the lifting grooves 324 of the two lifting clamps 322 to clamp the two positions of the main pipe 7, and the main pipe 7 is movable at this time; then, the lifting and positioning upper and lower air cylinders 31 drive the lifting clamp 32 and the positioning clamp 33 to move upward, and synchronously drive the nose frame 6 to move upward until the nose frame 6 moves between the two nose frame clamps 422 and stops.

[0050] The third step is Fig.10 As shown, the material guarding upper and lower cylinders 53 drive the lifting plate 54 to move upward until the material guarding plate 55 is pressed against the bottom surface of the middle part of the nose bridge 6 to support and adjust the angle of the nose bridge 6, and the nose bridge 6 is now located between the two material guarding chucks 562; then, the material guarding finger cylinder 561 drives the two material guarding chucks 562 to close, so that the nose bridge 6 is placed in the two material guarding grooves 563, that is, the nose bridge 6 is now movable; then, the aligning cylinder 52 drives the aligning rod 51 to move until it pushes the nose bridge 6 forward a certain distance, thereby completing the aligning operation.

[0051] The fourth step is Fig.11As shown, the nose bridge finger cylinder 421 drives the two nose bridge clamps 422 to completely clamp the two ends of the nose bridge 6 (that is, the nose bridge 6 is immobile at this time), and at the same time, the material protection finger cylinder 561 and the material protection upper and lower cylinders 53 are reset in sequence; then, the output shaft of the second front and rear cylinders 45 contracts, driving the nose bridge clamp 42 to move backward to a preset position, that is, the nose bridge 6 together with the main pipe 7 are pulled backward; then, the rotation drive cylinder 49 drives the rack 48 to move, and synchronously drives the gear 50 and the nose bridge clamp 422 to rotate 180°; then, the nose bridge upper and lower cylinders 41 drive the nose bridge clamp 42 to move downward, and synchronously drive the nose bridge 6 to move downward to the preset position, and the second port of the nose bridge 6 is just aligned with the port of the auxiliary pipe 8.

[0052] Step 5: Fig.12 As shown, the lifting and positioning upper and lower cylinders 31 drive the lifting clamp 32 and the positioning clamp 33 to move downward to the preset position; then, the positioning finger cylinder 331 drives the two positioning clamps 332 to close, so as to clamp the head of the auxiliary tube 8 (i.e., the end used for assembly with the nose frame 6) to improve the stability of the auxiliary tube 8; then, the second front and rear cylinders 45 drive the nose frame clamp 42 to move forward for the first time for a certain distance, and synchronously drive the second port of the nose frame 6 to be sleeved on the head of the auxiliary tube 8. When the head of the auxiliary tube 8 is inserted into the nose frame 6 for a certain distance (i.e., when it is not fully matched and inserted), the positioning finger cylinder 331 drives the two positioning clamps 332 to release the auxiliary tube 8, that is, the nose frame 6 and the auxiliary tube 8 are pre-assembled at this time; then, the first front and rear cylinders 43 continue to drive the first front and rear sliders 44 to move forward to push the nose frame clamp 42 to continue to move forward for the second time until the auxiliary tube 8 is inserted into the preset position in the nose frame 6 and stops, thus completing the secondary assembly of the nose frame 6. Finally, each component is reset, and the feeding mechanism sends the assembled workpiece to the next process and simultaneously sends new workpieces to be assembled.

[0053] The scope of the present disclosure is not determined by the above-described embodiments but is defined by the appended claims and their equivalents.

Claims

1. A novel nose bridge secondary assembly mechanism, characterized in that: It comprises a frame, a positioning fixture, and a lifting and positioning manipulator and a nose frame installation manipulator respectively mounted on the frame; the positioning fixture is used to respectively clamp the main pipe connected to one port of the nose frame and the secondary pipe to be connected to the other port of the nose frame; the lifting and positioning manipulator is located above the positioning fixture and in front of the nose frame installation manipulator; The lifting and positioning manipulator comprises lifting and positioning upper and lower cylinders installed on the frame and lifting clamps and positioning clamps distributed front and back on the output shafts of the lifting and positioning upper and lower cylinders; the lifting clamp can be used to lift the main pipe together with the nose frame upward without clamping the main pipe, and the positioning clamp can be used to clamp the head of the auxiliary pipe during the pre-assembly process of the auxiliary pipe and the nose frame to improve the stability of the auxiliary pipe; The nose frame installation robot includes a nose frame front and rear driving source installed on the frame, a nose frame upper and lower cylinders installed on the output end of the nose frame front and rear driving source so as to be movable forward and backward, a rotation driving source installed on the output shaft of the nose frame upper and lower cylinders, and a nose frame clamp installed on the output end of the rotation driving source; the nose frame installation robot can be used to clamp the nose frame and drive the nose frame to rotate after pulling it backwards so that it can be subsequently assembled with the corresponding auxiliary pipe.

2. The novel nose bridge secondary assembly mechanism according to claim 1 is characterized in that: It also includes a material protection aligning device; the material protection aligning device is located below the nose frame mounting robot; the material protection aligning device includes an aligning component; the aligning component includes an aligning rod that can move forward and backward and an aligning cylinder for driving the aligning rod to move forward and backward; the aligning component can be used to align the nose frame.

3. The novel nose bridge secondary assembly mechanism according to claim 2 is characterized in that: The material protecting and aligning device also includes a material protecting assembly; the material protecting assembly includes upper and lower material protecting cylinders installed on the frame, a lifting plate installed on the output shaft of the upper and lower material protecting cylinders movably up and down, a material protecting plate installed on the lifting plate, and a material protecting clamp installed on the lifting plate; the aligning cylinder is installed on the lifting plate, and the aligning rod is located behind the material protecting plate.

4. The novel nose bridge secondary assembly mechanism according to claim 3 is characterized in that: The material protecting clamp comprises a material protecting finger cylinder installed on the lifting plate and two material protecting chucks installed on the output end of the material protecting finger cylinder; a semicircular material protecting groove is respectively arranged on the inner side of the two material protecting chucks; the two material protecting grooves correspond to the size of the hose, and the height of the material protecting grooves is higher than the top surface of the material protecting plate.

5. The novel nose bridge secondary assembly mechanism according to claim 1 is characterized in that: The lifting clamp comprises a lifting finger cylinder and two lifting chucks mounted downward on the output end of the lifting finger cylinder; the lifting finger cylinder is mounted on the output shaft of the lifting positioning upper and lower cylinders through a mounting plate; a semicircular lifting groove is respectively provided on the inner side of the two lifting chucks, and the two lifting grooves correspond to the size of the hose; The positioning fixture includes a positioning finger cylinder mounted on the mounting plate and two positioning chucks mounted downward on the output end of the positioning finger cylinder.

6. The novel nose bridge secondary assembly mechanism according to claim 1 is characterized in that: The front and rear driving source of the nose frame includes a first front and rear cylinder fixed on the frame, a first front and rear slider installed on the output shaft of the first front and rear cylinder and can be moved forward and backward, a second front and rear cylinder installed on the first front and rear slider and a second front and rear slider installed on the output shaft of the second front and rear cylinder and can be moved forward and backward; the upper and lower cylinders of the nose frame are installed on the second front and rear slider.

7. The novel nose bridge secondary assembly mechanism according to claim 1 is characterized in that: The rotary driving source includes a positioning plate connected to the output shafts of the upper and lower cylinders of the nose frame so as to be movably connected up and down, a rack mounted on the positioning plate so as to be movably installed left and right, a rotary driving cylinder mounted on the positioning plate and having an output shaft connected to the rack, and a gear rotatably mounted on the positioning plate and meshing with the rack; the gear is connected to the nose frame clamp so that when the rotary driving cylinder drives the rack to move left and right, the gear and the nose frame clamp can be synchronously driven to rotate, thereby achieving the purpose of driving the nose frame to rotate.

8. The novel nose bridge secondary assembly mechanism according to claim 1 is characterized in that: The nose bridge clamp includes a nose bridge finger cylinder for connecting to the rotation driving source and two nose bridge clamps installed downward on the output end of the nose bridge finger cylinder.

9. The novel nose bridge secondary assembly mechanism according to claim 8 is characterized in that: The two nose bridge clamps are both in the shape of long strips, so that the two nose bridge clamps can be used to clamp both ends of the nose bridge, thereby improving the stability of the nose bridge during assembly.

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