Assembly device for annular tube bundle and assembly method thereof

Abstract

The present application relates to the technical field of automated assembly machinery, and discloses an assembly device for an annular tube bundle and an assembly method thereof. In order to solve the problem of inconsistent lengths between a movable buckle and a fixed buckle and the lack of reliability detection after the assembly bolt is installed on the fixed buckle, the movable buckle and one end of the top of the fixed buckle are pre-assembled by an assembly bolt. Secondly, the pre-assembled movable buckle slides on a material handling baffle. At the same time, if the length of the movable buckle is smaller than that of the fixed buckle, the movable buckle will quickly separate from the material handling baffle. Combined with the elastic force of the detection spring, the fixed buckle and the material feeding seat are separated. This method can not only detect whether the pre-assembled movable buckle and the fixed buckle are firmly assembled, but also detect the length of the movable buckle at the same time, thereby achieving the effect of pre-assembly and length detection.

Description

Technical Field

[0001] The present application relates to the technical field of automated assembly machinery, and in particular to an assembly device for an annular tube bundle and an assembly method thereof. Background Art

[0002] The annular tube bundle is also called a clamp. It is a fixing part of the pipe fitting. It is usually made of metal and has a ring-shaped appearance. Figure 8 It can be seen that the two semicircular fixed buckles 21 and the movable buckle 17 are sleeved on the outside of the pipe fitting, and the movable buckle 17 is fixed to the fixed buckle 21 by the assembly bolt 10, so as to fix the pipe fitting. Finally, the fixed buckle 21 is fixed at the desired position according to the installation bolt 22, so as to support the pipe fitting.

[0003] When the annular tube bundle is assembled, the assembly bolt 10 passes through the round hole of the movable buckle 17 and is screwed into the threaded hole of the fixed buckle 21 through a thread, so as to realize the assembly and fixation between the fixed buckle 21 and the movable buckle 17. At present, most of the assembly is done manually, which is time-consuming, labor-intensive, and inefficient. At the same time, when the lengths of the mounting bolts 22 are different or the ring sizes between the fixed buckle 21 and the movable buckle 17 are different, the intensity of manual screening will increase, thereby greatly reducing the work efficiency.

[0004] Although there are a few machine assemblies currently, the fixing buckle 21 and the movable buckle 17 are pre-fixed together mainly by a clamping and positioning mechanism, and then the two assembly bolts 10 are screwed into the fixing buckle 21 at the same time. However, in actual use, when one assembly bolt 10 is not screwed into the fixing buckle 21 normally, the whole is still fixed by the other assembly bolt 10. In this way, defective products assembled and fixed by only one assembly bolt 10 are easily produced, which is not easy for outsiders to check, greatly reducing the yield rate of the product. Summary of the invention

[0005] The present application proposes an assembly device for an annular tube bundle and an assembly method thereof, which have the advantages of pre-assembly and autonomous screening of unsuitable fixed buckles and movable buckles, and are used to solve the problems of different lengths of fixed buckles and movable buckles and defective products caused by only a single bolt fixation mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: an assembly device for an annular tube bundle, including a movable buckle and a fixed buckle, both of which are annular blocks, and the assembly bolt passes through the circular hole at the end of the movable buckle and is screwed into the threaded hole at the end of the fixed buckle, and a mounting bolt is fixed to the middle part of the outer side of the fixed buckle, a support base, and pulleys are symmetrically arranged on the surface, and the pulleys are connected by a transmission belt, and the pulleys are controlled by a servo motor to realize stepping motion; limiting holes are equidistantly arranged on the outer side of the transmission belt; a material conveying seat is fixed on the outer side of the transmission belt, and a material cavity is opened on the material conveying seat, the fixed buckle is adapted to the material cavity, and when the fixed buckle is placed in the material cavity, the mounting bolt passes through the limiting hole and is located on the inner side of the transmission belt; a material sorting baffle is fixed to the support base On, and the material sorting baffle is located on the outer side of the transmission belt; a material sorting frame is fixed on the top of the material sorting baffle, and the material sorting frame limits the movable buckles to achieve stacking of the movable buckles in sequence, and the circular hole at the end of the lowest movable buckle and the threaded hole at the top of the fixed buckle are in the same straight line; a fastening mechanism is fixed on one side of the support base, and the fastening mechanism passes the assembly bolt through the circular hole of the movable buckle and then screws it into the threaded hole at the top of the fixed buckle; an anti-detachment baffle frame is fixed on the support base, and the side of the anti-detachment baffle frame is slidably connected to the outer side of the material feeding seat; a baffle fork is fixed on the anti-detachment baffle frame, and the baffle fork is located between the movable buckle and the fixed buckle, so that when the assembly bolt is screwed into the threaded hole of the fixed buckle, the baffle fork blocks the movable buckle and allows the fixed buckle to pass over the anti-detachment baffle frame according to the assembly bolt.

[0007] Furthermore, there are multiple material conveying seats, and the multiple material conveying seats are arranged at equal distances.

[0008] Furthermore, the fastening mechanism includes: a pneumatic cannon, which is installed on one side of the material handling baffle through a support arm, and an assembly bolt is arranged at the end of the pneumatic cannon; an assembly spring, which is located between the pneumatic cannon and the support arm; a return cylinder, which is fixed on the support arm, and the end of the air rod of the return cylinder is fixed on the pneumatic cannon, for pulling the pneumatic cannon back.

[0009] Furthermore, the support base also includes: a detection push block, which is movably arranged on the support base through a cylindrical rod, and the detection push block is located on the inner side of the transmission belt; a detection spring, which is located between the support base and the detection push block, and the detection spring is located on the outer side of the cylindrical rod; a slope is provided on one side of the detection push block, and a straight surface parallel to the inner side of the transmission belt is provided on the outer side of the detection push block.

[0010] Furthermore, a collection box is placed on the support base and is located below the blocking fork.

[0011] Furthermore, a limit support located on the inner side of the transmission belt is arranged on the support base, and the top of the limit support is located at the bottom of the detection push block, and the top of the limit support is conical.

[0012] Furthermore, a pusher rack is fixedly installed on the anti-slip frame, and the outer side of the pusher rack includes: a positioning straight portion, which is located on the outer side of the transmission belt, and a fastening mechanism is provided on one side of the positioning straight portion; and a pusher oblique portion, which enables the overly long mounting bolts to be forced to be pushed outward.

[0013] Furthermore, a finished product box is placed on the support base and is located below the positioning straight line portion.

[0014] Furthermore, a waste material box is placed on the support base and is located below the material pushing inclined portion.

[0015] A method for assembling an annular tube bundle comprises the following steps:

[0016] S1. The fixing buckle is placed in the material cavity. As the servo motor drives the pulley to rotate step by step, the fixing buckle in the material cavity is limited by the anti-slip stop frame;

[0017] S2. The fastening mechanism screws an assembly bolt from the round hole at the end of the movable buckle through the stop fork and into the threaded hole at the top of the fixed buckle. The movable buckle is pressed against the stop fork. The fixed buckle, which is screwed by the assembly bolt, will be separated from the anti-detachment stop frame and attached to the stop fork. A gap of the thickness of the stop fork is left between the movable buckle and the fixed buckle to achieve pre-assembly.

[0018] S3, when the movable buckle is not screwed into the fixed buckle normally, the movable buckle has been pushed out of the material sorting rack at this time, and the movable buckle falls into the collection box due to its own gravity. The fixed buckle that is not screwed into the assembly bolt normally is affected by the elastic force of the detection spring, prompting the detection push block to force the fixed buckle to be pushed out of the anti-slip frame into the collection box. When the pre-assembly is abnormal, both the movable buckle and the fixed buckle fall into the collection box;

[0019] S4. When the feeding seat drives the fixed buckle to move step by step, the detection push block is pushed by the elastic force of the detection spring to push the mounting bolt, and the fixed buckle is pushed according to the mounting bolt, so that the movable buckle is pressed against the material baffle;

[0020] S5. As the fixed buckle continues to step forward, the movable buckle is dragged forward by the fixed buckle and the force of the movable buckle pressing against the material sorting baffle, forcing the fixed buckle and the movable buckle to be perpendicular to each other, and the movable buckle slides forward on one side of the material sorting baffle to detect whether the movable buckle and the fixed buckle are firmly connected. If they are not firmly connected, the fixed buckle and the movable buckle will spread apart and fall into the collection box, thus realizing the pre-assembly firmness detection;

[0021] S6. After the movable buckle moves to the end of the material baffle, when the length of the movable buckle is short and the mounting bolt has not yet contacted the limit support, the material baffle and the movable buckle have been separated, and the thrust of the detection spring forces the fixed buckle and the movable buckle to fall into the collection box, thereby realizing the length detection of the movable buckle;

[0022] S7. When the length of the mounting bolt is short, the mounting bolt will not contact the limit support, and the fixing buckle will still be forced out into the collection box by the detection push block to detect whether the length of the mounting bolt is too short;

[0023] S8. After the feed seat drives the pre-assembled fixed buckle and movable buckle forward step by step, the mounting bolt is restricted by the limit support and will not move outward. At the same time, the fixed buckle moves to one side of the pusher rack, and the movable buckle deflects vertically downward with the assembly bolt as the axis, so that the circular hole at the bottom of the movable buckle is aligned with the threaded hole at the bottom of the fixed buckle, thus realizing secondary hole alignment;

[0024] S9. The fastening mechanism fastens the bottom ends of the movable buckle and the fixed buckle by means of assembly bolts. As the assembly bolts are screwed into the threaded holes in the fixed buckles, the installation bolts are pulled to forcibly disengage from the limit support, and the finished product falls into the finished product box, thereby realizing the assembly and inspection of the finished product.

[0025] S10, the feed seat drives the fixing buckle to continue to step forward, and the pusher inclined portion will input the fixing buckle in the feed seat into the waste box, so as to realize the forced unloading of the overlong installation bolts and the fixing buckle that is not assembled normally;

[0026] S11. As the transmission belt continues to rotate, the feed seat returns to the anti-slip stop frame again, and the above cycle is repeated.

[0027] The present invention has the following beneficial effects:

[0028] The present application provides an assembly device for an annular tube bundle and an assembly method thereof, wherein a movable buckle and one end of the top of a fixed buckle are pre-assembled by an assembly bolt, and then the pre-assembled movable buckle slides on a material handling baffle. At the same time, if the length of the movable buckle is smaller than the fixed buckle, the movable buckle will quickly separate from the material handling baffle, and the fixed buckle and the material feeding seat will be separated by combining with the elastic force of the detection spring. This method can not only detect whether the pre-assembled movable buckle and the fixed buckle are firmly assembled, but also detect the length of the movable buckle at the same time, thereby achieving the effect of pre-assembly and length detection.

[0029] At the same time, the application arranges a limited support in the support base. When the qualified movable buckle follows the fixed buckle to move again, the limited support will be stuck in the thread of the mounting bolt to limit the movement of the fixed buckle. When the fixed buckle moves to the vicinity of the pusher rack, the air cannon screws the movable buckle to the other end of the fixed buckle through the assembly bolt. In the process of screwing the assembly bolt into the fixed buckle, the assembly bolt presses against the pusher rack to force the fixed buckle to forcibly pull the mounting bolt out of the limited support, ensuring that the movable buckle and the fixed buckle are fixed while the qualified product is taken out; if the mounting bolt is too long, the mounting bolt will not be separated from the limited support, and the overlong mounting bolt will continue to move forward with the fixed buckle. After passing the pusher rack, the fixed buckle will fall into the waste bin, so that the overlong mounting bolt is picked out, and finally the purpose of fixing the two ends of the fixed buckle and detecting the overlong mounting bolt is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0031] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0032] Figure 1 It is a schematic diagram of the overall external three-dimensional structure;

[0033] Figure 2 It is a schematic diagram of the overall top view;

[0034] Figure 3 for Figure 2 Partial cross-sectional view at AA in the middle;

[0035] Figure 4 It is a schematic diagram of the overall feeding part;

[0036] Figure 5 It is a schematic diagram of the overall cutting part;

[0037] Figure 6 It is a schematic diagram of the anti-dropping frame structure;

[0038] Figure 7 It is a schematic diagram of the push rack structure;

[0039] Figure 8 This is a schematic diagram of the fixed buckle and movable buckle after assembly.

[0040] In the figure: 1. Support base; 2. Detection spring; 3. Detection push block; 4. Transmission belt; 400, limit hole; 5. Pulley; 6. Servo motor; 7. Feed seat; 700, material cavity; 8. Push rack; 800, positioning straight line portion; 801, push inclined portion; 9. Waste box; 10. Assembly bolt; 11. Pneumatic gun; 12. Assembly spring; 13. Return cylinder; 14. Finished product box; 15. Collection box; 16. Material sorting baffle; 17. Movable buckle; 18. Material sorting rack; 19. Stop fork; 20. Anti-slip baffle rack; 21. Fixing buckle; 22. Mounting bolt; 23. Limit support. Implementation

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] Figure 8 It is the assembly part in this application. The movable buckle 17 and the fixed buckle 21 are annular blocks, and the two ends of the fixed buckle 21 are provided with threaded holes, and the two ends of the movable buckle 17 are provided with round holes. The assembly bolt 10 passes through the round hole of the movable buckle 17 and is screwed into the threaded hole of the fixed buckle 21. There are two assembly bolts 10, so that the movable buckle 17 is fixed to the fixed buckle 21. A mounting bolt 22 is fixed to the middle of the outer side of the fixed buckle 21, and the fixed buckle 21 can be installed at the desired position by the mounting bolt 22.

[0043] See also Figure 1 The support base 1 is the main supporting part of the whole structure. There are multiple L-shaped brackets at the bottom of the support base 1, which can provide stable support for the support base 1. A pair of pulleys 5 are symmetrically arranged on the surface of the support base 1. The pulleys 5 are connected by a transmission belt 4. One of the pulleys 5 is controlled by a servo motor 6. The servo motor 6 can make the pulley 5 run in steps, so that the two pulleys 5 rotate synchronously through the transmission belt 4.

[0044] The transmission belt 4 is provided with a plurality of limiting holes 400 at equal intervals. In order to ensure the stability of the transmission, a corresponding boss can be provided on the outer side of the pulley 5, so that the boss can be inserted into the limiting hole 400 during the rotation of the pulley 5 to stably drive the transmission belt 4 to rotate. The feed seat 7 is fixed on the outer side of the transmission belt 4, and there are a plurality of feed seats 7, which are arranged at equal intervals. Figure 1 It can be seen that there are two limit holes 400 between adjacent feeding seats 7. Figure 3It can be seen that a material cavity 700 is provided on the material conveying seat 7, and the opening of the material cavity 700 faces outward, and its groove shape is just adapted to the fixing buckle 21. When the mounting bolt 22 passes through the material cavity 700 and passes out of the limiting hole 400, the fixing buckle 21 can only move along the axial direction of the mounting bolt 22, and the mounting bolt 22 will pass through the limiting hole 400 and be placed on the inner side of the transmission belt 4, so that it can be ensured that when the material conveying seat 7 rotates with the transmission belt 4, the fixing buckle 21 can move synchronously with the material conveying seat 7.

[0045] Combination Figure 4 It can be seen that a material sorting baffle 16 is fixed on the support base 1, and the material sorting baffle 16 is located on one side of the transmission belt 4. Figure 2 It can be seen that the material sorting baffle 16 is located on the linear conveying part of the transmission belt 4, so that it is easy to load the materials and monitor the length of the tube bundle in the future. The material sorting rack 18 is fixed on the top of the material sorting baffle 16, and the material sorting rack 18 limits the two ends of the movable buckle 17, so that the movable buckles 17 are stacked together in sequence. At this time, the round hole at the end of the lowest movable buckle 17 and the threaded hole at the top of the fixed buckle 21 are in the same straight line, so that the subsequent pre-assembly between the movable buckle 17 and the fixed buckle 21 is convenient.

[0046] The cannon 11 is installed on one side of the material sorting baffle 16 through a supporting arm, and the cannon 11 can only reciprocate unidirectionally on the supporting arm. An assembly bolt 10 is arranged on the end of the cannon 11, and an assembly spring 12 is arranged between the cannon 11 and the supporting arm. Therefore, the cannon 11 pushes the assembly bolt 10 to move toward the movable buckle 17 through the elastic force of the assembly spring 12. The central axis of the cannon 11 corresponds to the circular hole at the end of the lowest movable buckle 17 in the material sorting rack 18. The assembly bolt 10 will pass through the circular hole at the end of the lowest movable buckle 17 in the material sorting rack 18, and through the push of the cannon 11, the lowest movable buckle 17 will be separated from the material sorting rack 18 and move in the direction of the transmission belt 4 until the assembly bolt 10 moves to the end of the fixed buckle 21. The cannon 11 is pneumatically or electrically driven, and uses compressed air or electric power to drive the internal blades to rotate, generating a strong torque, thereby tightening or removing the assembly bolt 10, and the assembly bolt 10 fixes one end of the movable buckle 17 to one end of the fixed buckle 21. In order to achieve the retraction of the air cannon 11, a return cylinder 13 is installed on the support arm, and the gas rod end of the return cylinder 13 is fixed on the air cannon 11. The return cylinder 13 can pull the air cannon 11 back and compress the assembly spring 12.

[0047] The support base 1 is fixed with an anti-slipping blocking frame 20, and one side of the anti-slipping blocking frame 20 slides relative to the outer end of the feeding seat 7. The anti-slipping blocking frame 20 is located on one side of the fixing buckle 21, and only blocks the end of the fixing buckle 21, and does not block the threaded hole of the fixing buckle 21. The part that blocks the fixing buckle 21 is made of rubber. Figure 6It can be seen that there are two anti-slipping retaining frames 20, and the two anti-slipping retaining frames 20 are connected and fixed by a rod. Therefore, when the material conveying seat 7 conveys the fixing buckle 21, the end of the fixing buckle 21 is blocked by the anti-slipping retaining frame 20, thereby preventing the fixing buckle 21 from falling out of the material cavity 700, thereby ensuring the stability of conveying. The shape of the anti-slipping retaining frame 20 is approximately L-shaped. Figure 4 It can be seen that the end of the anti-slip frame 20 is located on the straight conveying portion of the transmission belt 4. After the fixing buckle 21 is placed in the material chamber 700 here, the transmission belt 4 will transport the placed fixing buckle 21 forward and block and limit it through the anti-slip frame 20.

[0048] A stop fork 19 is fixed on the anti-slip stop frame 20, and the stop fork 19 is located between the movable buckle 17 and the fixed buckle 21. The end of the stop fork 19 is U-shaped. When the assembly bolt 10 connects the movable buckle 17 and the fixed buckle 21, the stop fork 19 is placed between the fixed buckle 21 and the movable buckle 17, which, on the one hand, prevents the connection between the movable buckle 17 and the fixed buckle 21 from being too tight. On the other hand, the threaded connection between the assembly bolt 10 and the fixed buckle 21 allows the fixed buckle 21 to pass over the anti-slip stop frame 20 and stick to the stop fork 19. At this time, the fixed buckle 21 is not completely separated from the material chamber 700.

[0049] See attached Figure 5 The detection push block 3 is movably arranged on the support base 1 through a cylindrical rod. The detection push block 3 is located on the inner side of the transmission belt 4. A detection spring 2 is connected between the support base 1 and the detection push block 3. The detection spring 2 is on the outer side of the cylindrical rod. Therefore, the elastic force of the detection spring 2 will make the detection push block 3 approach the inner side of the transmission belt 4. A slope is provided on one side of the detection push block 3, and the slope is close to the inner side of the transmission belt 4. When the movable buckle 17 and the fixed buckle 21 are fixed by an assembly bolt 10, the forward transmission belt 4 will make the mounting bolt 22 contact the slope of the detection push block 3, and the assembly The mounting bolt 10 will be disengaged from the retaining fork 19. At this time, under the influence of the elastic force of the detection spring 2, the detection push block 3 pushes the mounting bolt 22 outward through the inclined surface until the annular outer side of the movable buckle 17 presses against one side of the material sorting baffle 16. As the transmission belt 4 moves, the fixed buckle 21 will continue to move forward. At this time, the movable buckle 17 is moved forward by the dragging force of the end of the fixed buckle 21. On the other hand, the extrusion between the movable buckle 17 and the material sorting baffle 16 will cause the movable buckle 17 to rotate around the assembly bolt 10 as the axis until the movable buckle 17 and the fixed buckle 21 are arranged at a ninety-degree angle, that is, Figure 5 Status shown.

[0050] Combination Figure 5It can be seen that the top of the inclined surface on the outside of the detection push block 3 is provided with a straight surface parallel to the inner side of the transmission belt 4. After the mounting bolt 22 moves to the straight surface on the outside of the detection push block 3, at this time, the thrust applied by the detection spring 2 to the fixed buckle 21 through the detection push block 3 is the largest. As the fixed buckle 21 continues to move forward with the movable buckle 17 on the straight surface, combined with Figure 1 It can be seen that a collection box 15 located below the stop fork 19 is placed on the support base 1. When the movable buckle 17 and the fixed buckle 21 are not connected normally, the movable buckle 17 will fall into the collection box 15, and the fixed buckle 21 will also be detached from the material chamber 700 due to the elastic force of the detection spring 2. Even if the fixed buckle 21 does not cross the anti-detachment stop frame 20, it will be pushed by the elastic force of the detection spring 2 and will push the mounting bolt 22 through the detection push block 3 to force the fixed buckle 21 to be detached from the material chamber 700, and finally fall into the collection box 15.

[0051] Combination Figure 3 and Figure 5 It can be seen that a limit support 23 located on the inner side of the transmission belt 4 is arranged on the support base 1, and the top of the limit support 23 is located at the bottom of the detection push block 3, thereby ensuring that the detection push block 3 will not be blocked by the limit support 23 during the process of the detection push block 3 pushing the mounting bolt 22 outward. When the mounting bolt 22 moves to the straight surface on the detection push block 3, the thread on the mounting bolt 22 will be placed on the end of the limit support 23. The top of the limit support 23 is conical, ensuring that the mounting bolt 22 follows the movement of the transmission belt 4 while the thread on the outer side of the mounting bolt 22 is limited in the limit support 23, and the mounting bolt 22 will not be detached from the limit support 23, thereby ensuring the stability of the fixing buckle 21 during transportation.

[0052] As the fixing buckle 21 continues to step forward, the fixing buckle 21 will move to one side of the pusher rack 8. Figure 2 , Figure 5 and Figure 7 It can be seen that the pusher frame 8 is fixed on the anti-slip frame 20, and the pusher frame 8 exists on the outside of the transmission belt 4. The outside of the pusher frame 8 is composed of a positioning straight portion 800 and a pusher inclined portion 801. One side of the positioning straight portion 800 has a blaster 11, an assembly spring 12 and a return cylinder 13 fixed on the support base 1, and the central axis of the assembly bolt 10 provided on the blaster 11 is aligned with the threaded hole at the bottom end of the fixing buckle 21, combined with Figure 1It can be seen that since the movable buckle 17 is only limited by gravity at this time, the assembly bolt 10 at the top of the movable buckle 17 is used as the axis, so that the round hole at the bottom end of the movable buckle 17 corresponds to the threaded hole at the bottom end of the fixed buckle 21. When the assembly bolt 10 passes through the movable buckle 17 and is screwed into the threaded hole at the bottom end of the fixed buckle 21, the top end of the assembly bolt 10 will be against the positioning straight line portion 800 of the pushing rack 8. As the assembly bolt 10 is continuously screwed in, the fixed buckle 21 is forced to disengage from the material cavity 700. In addition, the material of the limiting support 23 is also rubber, so that the mounting bolt 22 is forced to disengage from the limiting support 23. After the assembly bolt 10 is screwed into the end of the fixed buckle 21, the assembled movable buckle 17 and the fixed buckle 21 will fall into the finished product box 14 below.

[0053] If the mounting bolt 22 is too long, the screwed-in assembly bolt 10 is not sufficient to make the mounting bolt 22 detach from the limiting support 23, and the feed seat 7 continues to drive the fixing buckle 21 to move toward the pushing inclined portion 801, thereby being pushed by the pushing inclined portion 801, forcing the overlong mounting bolt 22 to fall into the waste box 9 placed below the pushing inclined portion 801.

[0054] When using:

[0055] Fixed buckle 21 loading: reference Figure 4 , according to the robot or other feeding mechanism, the fixing buckle 21 can be placed in the material chamber 700. The present application does not provide the feeding related components. It is sufficient that the function can be implemented in this field. When the fixing buckle 21 is placed in, the mounting bolt 22 will pass through the limiting hole 400. The end of the mounting bolt 22 is located on the inner side of the transmission belt 4. As the servo motor 6 drives the pulley 5 to rotate step by step, the transmission belt 4 drives the feed seat 7 to move toward the anti-detachment frame 20. At the same time, the fixing buckle 21 is blocked by the anti-detachment frame 20 and will not detach from the material chamber 700, thereby ensuring the stability of the fixing buckle 21 in feeding.

[0056] Pre-assembly between the movable buckle 17 and the fixed buckle 21: after the transmission belt 4 drives the feed seat 7 to step one stroke, the servo motor 6 will stop for 1-2 seconds. At this time, the threaded hole at the top of the fixed buckle 21, the round hole at one end of the movable buckle 17 and the central axis of the assembly bolt 10 are on the same straight line, and the assembly spring 12 pushes the air cannon 11 to move in the direction of the fixed buckle 21. During this process, the assembly bolt 10 will first pass through the round hole of the movable buckle 17, and pass through the middle of the fork 19 and then reach the threaded hole at the top of the fixed buckle 21. As the air cannon 11 drives the assembly bolt 10 to rotate, the assembly bolt 10 is screwed into the threaded hole of the fixed buckle 21.

[0057] Since the movable buckle 17 is blocked by the stop fork 19 at this time, when the assembly bolt 10 continues to be screwed into the fixed buckle 21, the fixed buckle 21 will pass over the anti-slip stop frame 20 and stick to the stop fork 19. At this time, a distance equal to the thickness of the stop fork 19 is left between the fixed buckle 21 and the stop fork 19.

[0058] If the assembling bolt 10 is not normally screwed into the fixing buckle 21 at this time, since the movable buckle 17 has been pushed out from the bottom of the material sorting rack 18, as the return cylinder 13 retracts the air cannon 11, the pushed out movable buckle 17 will fall into the collection box 15 below, so that the staff can determine whether it can be used again after inspection.

[0059] Determine whether the connection between the movable buckle 17 and the fixed buckle 21 is secure: Figure 5 It can be seen that when the servo motor 6 makes the pulley 5 move one step further, the feed seat 7 will drive the fixing buckle 21 to move. At this time, the end of the mounting bolt 22 will hit the inclined surface of the detection push block 3, and the elastic force of the detection spring 2 will cause the fixing buckle 21 to tend to move away from the transmission belt 4.

[0060] If the fixed buckle 21 and the movable buckle 17 are not connected normally in the previous process, the fixed buckle 21 will be forced to detach from the material cavity 700 due to the elastic force of the detection spring 2, and finally fall into the collection box 15 below.

[0061] If the connection between the fixed buckle 21 and the movable buckle 17 is not firm, when the mounting bolt 22 is pushed outward by the elastic force of the detection spring 2, the fixed buckle 21 will push the movable buckle 17 to press against the material sorting baffle 16, and as the fixed buckle 21 moves forward with the feed seat 7, the movable buckle 17 is not only subjected to the forward drag force of the assembly bolt 10, but also to the thrust of the fixed buckle 21 that squeezes the movable buckle 17 against the surface of the material sorting baffle 16. As the fixed buckle 21 moves forward, the movable buckle 17 and the fixed buckle 21 are forced to deflect, so that the angle between the two is ninety degrees. When the connection between the fixed buckle 21 and the movable buckle 17 is not firm, the connection between the movable buckle 17 and the fixed buckle 21 will not be stable. When the movable buckle 17 and the fixed buckle 21 rotate, the movable buckle 17 and the fixed buckle 21 will be separated, so that the separated movable buckle 17 and the fixed buckle 21 fall into the collection box 15.

[0062] If the fixed buckle 21 and the movable buckle 17 are firmly connected, the fixed buckle 21 will drag the movable buckle 17 to move forward, so that the movable buckle 17 and the fixed buckle 21 move forward at a 90-degree angle.

[0063] Determine whether the length of the movable buckle 17 is qualified: as the servo motor 6 drives the pulley 5 to move one step further again, the mounting bolt 22 will move toward the direct surface of the detection push block 3. At this time, the end of the movable buckle 17 will gradually separate from the material sorting baffle 16. When the length of the movable buckle 17 is shorter, the transmission belt 4 drives the movable buckle 17 to continue to move forward, and the movable buckle 17 and the material sorting baffle 16 are completely separated. At this time, the fixed buckle 21 is not constrained, and the detection spring 2 pushes the detection push block 3 so that the fixed buckle 21 and the movable buckle 17 are pushed into the collection box 15, thereby removing the shorter movable buckle 17.

[0064] If the length of the movable buckle 17 is qualified, as the transmission belt 4 moves forward, when the movable buckle 17 is about to detach from the material sorting baffle 16, the limit support 23 is placed on the thread on the outside of the mounting bolt 22. At this time, even if the movable buckle 17 detaches from the material sorting baffle 16, the mounting bolt 22 will not move outward due to the restriction of the limit support 23 on the mounting bolt 22. At the same time, as the fixed buckle 21 continues to move forward, the mounting bolt 22 will detach from the detection push block 3, and the fixed buckle 21 will move to one side of the push rack 8. At this time, the threaded hole at the bottom end of the fixed buckle 21 is located on one side of the positioning straight line portion 800.

[0065] Re-fixation between the movable buckle 17 and the fixed buckle 21: Combined with the above, when the fixed buckle 21 moves to one side of the positioning straight portion 800, at this time, the movable buckle 17 takes the assembly bolt 10 as the axis, and is affected by its own gravity, so that the bottom circular hole of the movable buckle 17 corresponds to the threaded hole at the bottom end of the fixed buckle 21. At this time, the assembly bolt 10 is also coaxial with it, and is pushed by the pneumatic cannon 11, so that the assembly bolt 10 fixes the bottom of the movable buckle 17 and the fixed buckle 21. As the assembly bolt 10 is continuously screwed into the bottom end of the fixed buckle 21, the end of the assembly bolt 10 will press against the positioning straight portion 800, so that the fixed buckle 21 has enough force to make the installation bolt 22 disengage from the limiting support 23, and after the screwing is completed, the assembled movable buckle 17 and the fixed buckle 21 will fall into the finished product box 14 below.

[0066] Length detection and screening of the mounting bolts 22: When the mounting bolts 22 with shorter length are in the part of "determining whether the movable buckle 17 and the fixed buckle 21 are firmly connected", if the inserted mounting bolts 22 are not enough to contact the limit support 23, they will be directly pushed into the collection box 15.

[0067] When the mounting bolt 22 is too long, although subsequent work can be carried out, the overlong mounting bolt 22 will not break away from the limit support 23 due to the limited length that the assembly bolt 10 can pull the fixing buckle 21 outward. As the feed seat 7 continues to move forward one step, the fixing buckle 21 is pushed forward by the pushing inclined portion 801 and continues to move outward until the overlong mounting bolt 22 falls into the waste box 9.

[0068] If the assembling bolt 10 is not normally screwed into the threaded hole at the bottom end of the fixing buckle 21, the fixing buckle 21 will not be detached from the limiting support 23. As the feeding seat 7 moves forward step by step, the fixing buckle 21 will eventually fall into the waste box 9.

Claims

1. An assembly device for an annular tube bundle, comprising a movable buckle (17) and a fixed buckle (21), both of which are annular blocks, and an assembly bolt (10) passes through a circular hole at the end of the movable buckle (17) and is screwed into a threaded hole at the end of the fixed buckle (21), and a mounting bolt (22) is fixed to the middle of the outer side of the fixed buckle (21), characterized in that: Also includes: A support base (1) has pulleys (5) symmetrically arranged on its surface, and the pulleys (5) are connected to each other via a transmission belt (4), and the pulleys (5) are controlled by a servo motor (6) to achieve stepping motion; Limiting holes (400) are arranged at equal intervals on the outer side of the transmission belt (4); The material conveying seat (7) is fixed on the outer side of the transmission belt (4), and a material cavity (700) is opened on the material conveying seat (7), the fixing buckle (21) is adapted to the material cavity (700), and when the fixing buckle (21) is placed in the material cavity (700), the mounting bolt (22) passes through the limiting hole (400) and is located on the inner side of the transmission belt (4); A material sorting baffle (16) is fixed on the supporting base (1), and the material sorting baffle (16) is located on the outer side of the transmission belt (4); The material sorting rack (18) is fixed above the material sorting baffle (16), and the material sorting rack (18) limits the movable buckles (17) so that the movable buckles (17) are stacked together in sequence, and the circular hole at the end of the lowest movable buckle (17) and the threaded hole at the top of the fixed buckle (21) are in the same straight line; The fastening mechanism is fixed on one side of the support base (1), and the fastening mechanism passes the assembly bolt (10) through the circular hole of the movable buckle (17) and then screws it into the threaded hole at the top of the fixed buckle (21); An anti-slipping retaining frame (20) is fixed on the supporting base (1), and a side portion of the anti-slipping retaining frame (20) is slidably connected to an outer side of the material conveying seat (7); A stop fork (19) is fixed on the anti-slip stop frame (20), and the stop fork (19) is located between the movable buckle (17) and the fixed buckle (21), so that when the assembly bolt (10) is screwed into the threaded hole of the fixed buckle (21), the stop fork (19) blocks the movable buckle (17) and allows the fixed buckle (21) to pass over the anti-slip stop frame (20) according to the assembly bolt (10); The support base (1) also includes: A detection push block (3) is movably arranged on the support base (1) via a cylindrical rod, and the detection push block (3) is located on the inner side of the transmission belt (4); A detection spring (2) is located between the support base (1) and the detection push block (3), and the detection spring (2) is located outside the cylindrical rod; One side of the detection push block (3) is provided with an inclined surface, and the outer side of the detection push block (3) has a straight surface parallel to the inner side of the transmission belt (4); A limit support (23) located inside the transmission belt (4) is arranged on the support base (1), and the top of the limit support (23) is located at the bottom of the detection push block (3), and the top of the limit support (23) is conical; A material pusher (8) is fixedly mounted on the anti-slip blocking frame (20), and the outer side of the material pusher (8) includes: A positioning straight portion (800) is located outside the transmission belt (4), and a fastening mechanism is provided on one side of the positioning straight portion (800); The pusher inclined portion (801) enables the overlong mounting bolts (22) to be forced outward.

2. The assembly equipment for annular tube bundle according to claim 1, characterized in that: There are multiple material conveying seats (7), and the multiple material conveying seats (7) are arranged at equal distances.

3. The assembly equipment for annular tube bundle according to claim 1, characterized in that: The fastening mechanism comprises: A wind gun (11) is installed on one side of the material handling baffle (16) through a support arm, and an assembly bolt (10) is arranged at the end of the wind gun (11); Assembling spring (12), located between the air cannon (11) and the support arm; The return cylinder (13) is fixed on the support arm, and the end of the gas rod of the return cylinder (13) is fixed on the air cannon (11) for pulling the air cannon (11) back.

4. The assembly equipment for annular tube bundle according to claim 1, characterized in that: A collection box (15) is placed on the support base (1) and is located below the blocking fork (19).

5. The assembly equipment for annular tube bundle according to claim 1, characterized in that: A finished product box (14) is placed on the support base (1) and is located below the positioning straight line portion (800).

6. The assembly equipment for annular tube bundle according to claim 5, characterized in that: A waste material box (9) is placed on the support base (1) and is located below the pusher inclined portion (801).

7. The method for assembling an annular tube bundle assembly device according to claim 6, characterized in that: The following steps are involved: S1, the fixing buckle (21) is placed in the material cavity (700), and as the servo motor (6) drives the pulley (5) to rotate step by step, the fixing buckle (21) in the material cavity (700) is limited by the anti-slip stop frame (20); S2, the fastening mechanism screws an assembly bolt (10) from the round hole at the end of the movable buckle (17) through the stop fork (19) and into the threaded hole at the top of the fixed buckle (21), the movable buckle (17) is pressed against the stop fork (19), the fixed buckle (21) screwed by the assembly bolt (10) will be separated from the anti-detachment stop frame (20) and attached to the stop fork (19), and a gap of the thickness of the stop fork (19) is left between the movable buckle (17) and the fixed buckle (21), thereby achieving pre-assembly; S3, when the movable buckle (17) is not normally screwed into the fixed buckle (21), the movable buckle (17) has been pushed out to the outside of the material sorting frame (18), and the movable buckle (17) falls into the collection box (15) due to its own gravity, and the fixed buckle (21) that is not normally screwed into the assembly bolt (10) is affected by the elastic force of the detection spring (2), prompting the detection push block (3) to force the fixed buckle (21) to be pushed out from the anti-slip frame (20) into the collection box (15), so that when the pre-assembly is abnormal, the movable buckle (17) and the fixed buckle (21) both fall into the collection box (15); S4, when the material feeding seat (7) drives the fixed buckle (21) to move step by step, the detection push block (3) is subjected to the elastic force of the detection spring (2) to push the mounting bolt (22), and the mounting bolt (22) pushes the fixed buckle (21), so that the movable buckle (17) is pressed against the material sorting baffle (16); S5. As the fixed buckle (21) continues to step forward, the movable buckle (17) is subjected to the forward drag force of the fixed buckle (21) and the force of the movable buckle (17) pressing against the material sorting baffle (16), forcing the fixed buckle (21) and the movable buckle (17) to be perpendicular to each other, and the movable buckle (17) slides forward on one side of the material sorting baffle (16) to detect whether the movable buckle (17) and the fixed buckle (21) are firmly connected. If they are not firmly connected, the fixed buckle (21) and the movable buckle (17) are separated and fall into the collection box (15), thereby realizing the pre-assembly firmness detection; S6, after the movable buckle (17) moves to the end of the material sorting baffle (16), when the length of the movable buckle (17) is short and the mounting bolt (22) has not yet contacted the limit support (23), the material sorting baffle (16) and the movable buckle (17) have been separated, and the thrust of the detection spring (2) forces the fixed buckle (21) and the movable buckle (17) to fall into the collection box (15), thereby realizing the length detection of the movable buckle (17); S7, when the length of the mounting bolt (22) is short, the mounting bolt (22) will not contact the limit support (23), and the fixing buckle (21) will still be forced to be pushed into the collection box (15) by the detection push block (3) to detect whether the length of the mounting bolt (22) is too short; S8, after the feed seat (7) drives the pre-assembled fixed buckle (21) and movable buckle (17) forward in a stepwise manner, the mounting bolt (22) is restricted by the limit support (23) and will not move outwards. At the same time, the fixed buckle (21) moves to one side of the pusher rack (8), and the movable buckle (17) deflects vertically downward with the assembly bolt (10) as the axis, so that the circular hole at the bottom of the movable buckle (17) and the threaded hole at the bottom of the fixed buckle (21) are aligned, thereby realizing secondary hole alignment; S9, the fastening mechanism fastens the bottom ends of the movable buckle (17) and the fixed buckle (21) by means of the assembly bolt (10), and as the assembly bolt (10) is screwed into the threaded hole in the fixed buckle (21), the installation bolt (22) is pulled to forcibly disengage from the limit support (23), and the finished product falls into the finished product box (14), thereby achieving finished product assembly and testing; S10, the feeding seat (7) drives the fixing buckle (21) to continue to step forward, and the pushing inclined portion (801) will input the fixing buckle (21) in the feeding seat (7) into the waste box (9), thereby realizing the forced unloading of the overlong installation bolts (22) and the fixing buckle (21) that is not assembled normally; S11, as the transmission belt (4) continues to rotate, the feeding seat (7) returns to the anti-slip stop frame (20) again, and the above steps are repeated.

Images