A snake bone riveting equipment

Abstract

A snake-bone riveting device comprises a fixing mechanism, a feeding mechanism, a pushing mechanism and a riveting mechanism; the snake-bone sections of the snake-bone structure are pre-jointed into one body and fixedly limited in the fixing mechanism; the movable end of the feeding rod of the feeding mechanism is movably extended into or out of the interior of the snake-bone structure, and the end of the movable end of the feeding rod is provided with two rivet grooves arranged opposite to each other, and the two rivet grooves use a negative pressure device to provide negative pressure so that the rivet grooves adsorb the rivets, and use a blowing device to provide a blowing output so that the rivet grooves eject the rivets, and the rivet rods are installed in the riveted holes toward the outside of the snake-bone structure; the pushing rod of the pushing mechanism has two abutment tops, which are respectively positioned close to the rivet heads installed in the riveted holes on both sides, for limiting the inward movement of the rivet heads; the riveting punches of the two riveting presses of the riveting mechanism are respectively for the two groups of rivet holes on the left and right sides of the snake-bone structure, for cooperating with the abutment tops to punch the rivets, thereby realizing automated riveting assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, in particular to a snake-bone riveting device. Background Art

[0002] Endoscopes can be inserted into an object and bent in multiple directions and angles to provide a comprehensive view of the object's interior. Based on their applications, they can be categorized into industrial endoscopes and medical endoscopes.

[0003] like Figure 1 As shown, the moving body of the endoscope is a snake bone structure 10, which is mainly composed of a front snake bone segment 101, a plurality of middle snake bone segments 102 and a rear snake bone segment 103 connected in sequence by rivets, that is, two connecting ears 104 that overlap each other are provided on both sides between adjacent snake bone segments 20, and rivet holes 202 are provided on the connecting ears 104. Two rivet holes 202 on the same side form a group, and the same rivet is riveted in a group of rivet holes 202 to achieve relative rotation connection of each snake bone segment 20. The existing snake bone assembly method is generally manual assembly, which requires pre-aligning the snake bone segments 20 of the snake bone in pairs to align the rivet holes 202, and then inserting the rivet from the snake bone hole of the aligned parts and then inserting it into the rivet hole 202, and then riveting. After riveting, the next snake bone segment 20 is installed and the previous step is repeated. The riveting of a snake-bone structure 10 requires repeated steps of installation, riveting, and then installation, which is inefficient. Moreover, since the snake-bone parts are small and the rivet size is also small, it is difficult to accurately align the rivet holes 202 of each part by manual observation with the naked eye, and it is also difficult to accurately align the rivet into the rivet hole 202. The rivet is also prone to falling off during the insertion process, resulting in a high rework rate in the assembly process, slow production efficiency, and high labor costs. Summary of the Invention

[0004] The object of the present invention is to provide a snake-bone riveting device, which can solve the technical problem of the difficulty of manual assembly in the above-mentioned assembly process and has the advantage of improving production efficiency.

[0005] In order to achieve the above object, the solution of the present invention is:

[0006] A snake-bone riveting device comprises a fixing mechanism, a feeding mechanism, a pushing mechanism and a riveting mechanism;

[0007] The conveying mechanism includes a conveyor belt, and the fixing mechanism is installed on the conveyor belt. The snake bone sections of the snake bone structure are pre-jointed into one body and fixedly limited in the fixing mechanism so as to move forward and backward with the conveyor belt;

[0008] The feeding mechanism includes a feeding rod and a suction and blowing device, the movable end of the feeding rod is movable to extend into or out of the interior of the serpentine structure, and the end of the movable end of the feeding rod is provided with two rivet grooves arranged opposite to each other, the axes of the two rivet grooves and the axes of any two groups of rivet holes on the left and right sides of the serpentine structure are on the same horizontal plane; the rivet groove is connected to the negative pressure device and the blowing device of the suction and blowing device, the negative pressure device is used to provide negative pressure to make the rivet groove absorb the rivet, and the blowing device is used to provide blowing output to make the rivet groove eject the rivet, and the rivet rod is installed in the rivet hole toward the outside of the serpentine structure;

[0009] The ejection mechanism includes an ejection rod, the movable end of which is movable to extend into or out of the interior of the serpentine structure, and the end of the movable end of the ejection rod is provided with two back-to-back abutment portions, which are respectively positioned close to the rivet heads installed in the riveting holes on both sides and are used to limit the inward movement of the rivet heads;

[0010] The riveting mechanism includes two riveting machines, which are respectively arranged on both sides of the snake-bone structure and move back and forth along the axial direction of the snake-bone structure. The riveting punches of the two riveting machines are respectively used to punch the rivets in the two groups of riveting holes on the left and right sides of the snake-bone structure in cooperation with the top.

[0011] Furthermore, it also includes a conveying mechanism; the conveying mechanism includes a conveyor belt, and the fixing mechanism is installed on the conveyor belt to move back and forth with the conveyor belt.

[0012] Furthermore, the fixing mechanism includes a fixed bottom plate and a fixed top plate; the fixed bottom plate is fixed on the conveyor belt, and a plurality of lower bosses are protruding from the fixed bottom plate, and each lower boss is respectively inserted into the threading slot below each snake bone section; the fixed top plate is arranged at intervals above the fixed bottom plate, and a plurality of upper bosses are protruding downward from the bottom surface of the fixed top plate, and each upper boss is respectively inserted into the threading slot above each snake bone section.

[0013] Furthermore, the fixing mechanism also includes two fixed side plates, which are arranged on both sides of the fixed bottom plate and the fixed top plate at intervals on the left and right sides, and are used to limit the left and right movement of each snake bone joint, and the fixed side plates are respectively provided with a clearance hole corresponding to each riveting hole.

[0014] Furthermore, the movable end of the feed rod is provided with two convex parts which are arranged in opposite directions and protrude radially, and the convex parts are respectively provided with radial rivet grooves.

[0015] Furthermore, the fixed end of the feed rod is provided with an air intake hole and an air outlet hole, and an air cavity is provided inside the feed rod body to connect the air intake holes, air outlet holes and two rivet grooves at both ends; the negative pressure device is connected to the air intake hole through a connecting pipe, and the blowing device is connected to the air outlet hole through a connecting pipe.

[0016] Furthermore, the feeding mechanism also includes a feeding device; the feeding device includes two feeding guide pillars symmetrically arranged on the left and right, the inside of the feeding guide pillars is a feeding trough, the top of the feeding trough is a feeding port, and the bottom is provided with a feeding port, and the feeding ports of the left and right feeding guide pillars are oppositely arranged on both sides of the feeding rod, and the feeding trough contains a number of rivets stacked in sequence, with the heads of the rivets facing the outside of the feeding port, and the axis of the feeding port and the axis of the rivet trough are located on the same horizontal plane.

[0017] Furthermore, the unloading device also includes a connecting bracket, a unloading bracket, a vertical linear module for unloading and a horizontal linear module for unloading; one end of the connecting bracket is fixedly connected to the two unloading guide pillars, and the other end is fixedly connected to the slider of the vertical linear module for unloading, the vertical linear module for unloading is fixed on the top of the unloading bracket, and the bottom of the unloading bracket is connected to the slider of the horizontal linear module for unloading, and the horizontal linear module for unloading is arranged in the same direction as the conveyor belt.

[0018] Furthermore, the riveting mechanism also includes two horizontal motion modules; the two horizontal motion modules are respectively arranged on the left and right sides of the conveyor belt; the horizontal motion module is an XY axis linear module, which is used to control the riveting punch of the riveting mechanism to approach the riveting holes of the serpentine structure in the left and right directions, and to move forward and backward along the axial direction of the serpentine structure to align the riveting holes.

[0019] Furthermore, the feeding mechanism also includes a feeding rod driving device; the fixed end of the feeding rod is connected to the feeding rod driving device, and the feeding rod driving device is used to drive the feeding rod to extend into or exit the serpentine structure; the lifting mechanism also includes a lifting rod driving device; the fixed end of the lifting rod is connected to the lifting rod driving device, and the lifting rod driving device is used to drive the lifting rod to extend into or exit the serpentine structure; the feeding mechanism and the lifting mechanism are installed on a transverse plate, and the transverse plate is driven by a transverse motor to control the feeding rod of the feeding mechanism and the lifting rod of the lifting mechanism to move laterally out of the conveyor belt.

[0020] The present invention also provides a snake-bone riveting device, comprising a conveying mechanism, a fixing mechanism, a feeding mechanism, a pushing mechanism and a riveting mechanism;

[0021] The conveying mechanism includes a conveyor belt, and the fixing mechanism is installed on the conveyor belt. The snake bone sections of the snake bone structure are pre-jointed into one body and fixedly limited in the fixing mechanism so as to move forward and backward with the conveyor belt;

[0022] The feeding mechanism includes one or two feeding rods and a suction and blowing device, wherein the movable end of the feeding rod is movable to extend into or out of the interior of the serpentine structure, and the end of the movable end of the feeding rod is provided with two rivet grooves arranged opposite to each other, and the axes of the two rivet grooves are on the same horizontal plane as the axes of any two groups of riveted holes on the left and right sides of the serpentine structure; the rivet grooves are connected to the negative pressure device and the blowing device of the suction and blowing device, and the negative pressure device is used to provide negative pressure so that the rivet grooves absorb the rivets, and the blowing device is used to provide blowing output so that the rivet grooves eject the rivets, and the rivet rods are installed in the rivet holes toward the outside of the serpentine structure;

[0023] The ejection mechanism includes two abutment parts arranged in opposite directions, which are formed at the ends of the movable ends of the feed rod and are located outside the two rivet grooves; the abutment parts are respectively used to align the rivet heads installed in the riveting holes on both sides and to limit the inward movement of the rivet heads;

[0024] The riveting mechanism includes two riveting machines, which are respectively arranged on both sides of the snake-bone structure and move back and forth along the axial direction of the snake-bone structure. The riveting punches of the two riveting machines are respectively used to cooperate with the top to punch the rivets on the two groups of rivet holes located on the left and right sides of the snake-bone structure.

[0025] After adopting the above technical solution, when the snake bone sections of the serpentine structure are butt-jointed but not riveted, they can be fixed and positioned by means of a fixing mechanism; a feed rod is provided with two rivet grooves which can automatically absorb rivets, and after being inserted into the interior of the serpentine structure, the rivets are blown out and installed in the rivet holes, thereby automatically and accurately completing the rivet assembly; a push rod is then provided to extend into the interior of the serpentine, and the two abutting ends of the push rod respectively abut the heads of the limiting rivets, while the riveting punch of the riveting press is used to align the rivets on the outside of the serpentine structure to punch, so that the rod of the rivet is formed to be limited to the outside of the connecting ear, thereby realizing the riveting fixation of the adjacent snake bone sections by the rivet, and the above steps can be repeated to complete the rotational connection and combination of the snake bone sections, thereby automatically and efficiently realizing the riveting assembly of small-sized snake bone structures, reducing manual operations and improving production efficiency.

[0026] The two abutment tops can also be arranged at the movable end of the feed rod, and the operations of automatically assembling rivets and punching rivets can also be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the snake bone structure;

[0028] Figure 2 The three-dimensional embodiment of the present invention Figure 1 ;

[0029] Figure 3 The three-dimensional embodiment of the present invention Figure 2 ;

[0030] Figure 4 It is a front view of embodiment 1 of the present invention;

[0031] Figure 5 A top view of embodiment 1 of the present invention;

[0032] Figure 6 for Figure 5 A partial enlarged cross-sectional view at AA;

[0033] Figure 7 for Figure 6 A partial enlarged cross-sectional view of the BB;

[0034] Figure 8 for Figure 6 A partial enlarged cross-sectional view at CC;

[0035] Figure 9 is a perspective view of a feeding mechanism according to embodiment 1 of the present invention;

[0036] Figure 10 A perspective view of a feed rod according to embodiment 1 of the present invention;

[0037] Figure 11 This is a partial structural perspective view of the blanking device according to Example 1 of the present invention;

[0038] Figure 12 A perspective view of a push rod according to embodiment 1 of the present invention;

[0039] Figure 13 This is an exploded view of the fixing mechanism of Example 1 of the present invention;

[0040] Figure 14 A perspective view of a ejector rod according to embodiment 2 of the present invention;

[0041] Figure 15 is a cross-sectional view of embodiment 2 of the present invention;

[0042] Figure 16 This is a cross-sectional view of Example 3 of the present invention.

[0043] Explanation of symbols:

[0044] Snake bone structure 10, front snake bone joint 101, middle snake bone joint 102, rear snake bone joint 103, front snake bone hole 104, rear snake bone hole 105, snake bone joint 20, connecting ear 201, rivet hole 202, threading slot 203;

[0045] Work surface 1, conveyor frame 11;

[0046] Conveying mechanism 2, conveyor belt 2;

[0047] Fixing mechanism 3, fixed bottom plate 31, lower boss 311, fixed side plate 32, clearance hole 321, fixed top plate 33, upper boss 331;

[0048] Feeding mechanism 4, feeding rod 41, protrusion 411, rivet groove 412, air suction hole 413, air outlet hole 414, air cavity 415, feeding rod driving device 42, feeding bracket 421, feeding linear module 422, unloading device 43, unloading guide column 431, unloading trough 4311, feeding port 4312, discharging port 4313, connecting bracket 432, unloading bracket 433, unloading vertical linear module 434, unloading horizontal linear module 435;

[0049] Ejection mechanism 5, ejection rod 51, abutment top 511, ejection rod driving device 52, ejection bracket 521, ejection linear module 522;

[0050] Riveting mechanism 6, riveting machine 61, riveting punch 611, horizontal motion module 62;

[0051] Rivet 7, head 71, stem 72;

[0052] Transverse plate 81, roller set 82. DETAILED DESCRIPTION

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of 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. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0054] In the description of the embodiments of the present application, it should be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is conventionally placed when in use, or is the orientation or position relationship conventionally understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0055] Example 1

[0056] like Figures 2 to 4 As shown, the snake-bone riveting device proposed by the present invention includes a work surface 1, a conveying mechanism 2, a fixing mechanism 3, a feeding mechanism 4, a pushing mechanism 5 and a riveting mechanism 6.

[0057] The conveying mechanism 2 can be a conveyor belt 2, which is fixed to the top of the conveyor frame 11 set on the work surface 1. The fixing mechanism 3 is installed on the conveyor belt 2. The snake bone nodes 20 of the snake bone structure 10 are pre-connected as a whole and fixed on the fixing mechanism 3 so as to be transported and moved along with the conveying mechanism 2.

[0058] like Figure 13 As shown, the fixing mechanism 3 includes a fixed base plate 31, two fixed side plates 32 and a fixed top plate 33; the fixed base plate 31 is fixed to the conveyor belt 2, and a plurality of lower bosses 311 are protruded from the fixed base plate 31; the two fixed side plates 32 are arranged on both sides of the fixed base plate 31 at intervals in the left and right directions, and a row of clearance holes 321 are provided on the two fixed side plates 32 at intervals in the front and rear directions, and each clearance hole 321 passes through the fixed side plates 32 in the left and right directions; the fixed top plate 33 is arranged above the fixed base plate 31 at intervals, and the two sides are detachably connected to the left and right fixed side plates 32, and the bottom surface of the fixed top plate 33 is protruded with a plurality of upper bosses 331 facing downwards; refer to Figure 1 and Figure 7 The bottom and top of each snake bone section 20 of the snake bone mechanism can be provided with an inwardly concave threading slot 203, so that the lower bosses 311 and the upper bosses 331 of the fixed base plate 31 are respectively inserted into the upper and lower threading slots 203 of each snake bone section 20 of the snake bone mechanism, so as to fix the snake bone structure 10 that is pre-jointed as a whole but not riveted together in the upper and lower positions, and the respective clearance holes 321 of the left and right fixed side plates 32 correspond to the respective rivet holes 202 on the left and right sides of the snake bone mechanism, and limit the left and right movement of the snake bone structure 10.

[0059] The upper boss 331 of the fixed top plate 33 of this embodiment is set to an oblique structure corresponding to the position of the upper threading slot 203 of the snake-bone structure 10, and can be adjusted according to the design of the snake-bone structure 10. At the same time, the fixed top plate 33 is assembled on the left and right fixed side plates 32, which is also convenient for replacement operation.

[0060] See Figure 6 、 Figures 8 to 11 As shown, the feeding mechanism 4 includes a feeding rod 41 , a feeding rod driving device 42 , a suction and blowing device (not shown) and a discharge device 43 .

[0061] The feed rod 41 is spaced above the conveyor belt 2 and is coaxially arranged at the front end of the serpentine structure 10. It can be driven by the feed rod driving device 42 to extend from the front end serpentine hole 104 into the interior of the serpentine structure 10; the feed rod 41 is provided with two back-to-back and radially protruding convex parts 411 near the rear end movable end of the serpentine structure 10, and radial rivet grooves 412 are recessed on the convex parts 411. The axes of the two rivet grooves 412 are exactly opposite to the axes of the two groups of riveted holes 202 on both sides of the serpentine structure 10. The other end of the feed rod 41 is provided with an air intake hole 413 and an air outlet hole 414 at the front fixed end. An air cavity 415 is provided inside the rod body of the feed rod 41 to connect the air intake holes 413, the air outlet holes 414 and the two rivet grooves 412 at both ends.

[0062] The suction and blowing device includes a negative pressure device and a blowing device and a plurality of connecting pipes. The negative pressure device can be a vacuum device, and the blowing device can be a cylinder. The negative pressure device is connected to the suction hole 413 through the connecting pipe, thereby connecting the two rivet grooves 412 to provide a negative pressure output. The blowing device is connected to the air outlet 414 through the connecting pipe, thereby connecting the two rivet grooves 412 to provide a blowing output. Thus, the suction hole 413 outputs negative pressure to adsorb the head of the rivet 7 inwardly into the two rivet grooves 412, and then drives the feed rod 41 to extend into the interior of the serpentine structure 10, and makes the rod portion 72 of the rivet 7 in the two rivet grooves 412 respectively positioned and aligned with the riveting holes 202 on the left and right sides of the two serpentine sections 20 of the serpentine structure 10; then the output of the negative pressure device is closed, and the air outlet 414 is used to blow the two rivets 7 out and respectively sleeve them into the riveting holes 202, which can facilitate the later-described ejection mechanism 5 and riveting mechanism 6 to perform riveting operations on the rivets 7.

[0063] The length of the feed rod 41 extending into the serpentine structure 10 is not less than the distance between the two furthest rivet holes 202 in the axial direction inside the serpentine structure 10 .

[0064] The feed rod driving device 42 includes a feed bracket 421 and a feed linear module 422. The bottom of the feed bracket 421 is connected to the slider of the feed linear module 422. The end of the feed rod 41 away from the serpentine structure 10 is fixed to the top of the feed bracket 421, and the feed linear module 422 is installed on the work table 1, and is located on one side of the conveyor belt 2 and is arranged in the same direction as the conveyor belt 2, so as to drive the feed rod 41 to extend into or out of the serpentine structure 10, and position the two rivet grooves 412 at the rivet holes 202 between each serpentine node 20.

[0065] The blowing and sucking device can be fixed on the feeding bracket 421 or be independently provided.

[0066] like Figure 9 and Figure 11As shown, in order to facilitate the automatic adsorption of rivets 7 by the feed rod 41, a feeding device 43 is provided. The feeding device 43 includes two symmetrically arranged feeding guide posts 431, the inside of the feeding guide posts 431 is a feeding trough 4311, the top of the feeding trough 4311 is a feeding port 4312, and the bottom is provided with a discharge port 4313. The discharge ports 4313 of the left and right feeding guide posts 431 are oppositely arranged on both sides of the feed rod 41. The feeding trough 4311 contains a plurality of rivets 7 stacked in sequence, with the heads 71 ​​of the rivets 7 facing the outside of the discharge port 4313, and the discharge port 4313 is provided on the left and right sides of the feed rod 41. The axis 3 and the axis of the rivet groove 412 are located on the same horizontal plane, and two feed guide posts 431 can be located outside the end of the snake-bone structure 10. Thus, before the feed rod 41 extends into the snake-bone structure 10, it first passes between the two discharge ports 4313 of the two feed guide posts 431. The suction holes 413 draw air out of the two discharge ports 4313 and absorb the rivets 7 into the rivet groove 412. The rivets 7 in the feed trough 4311 automatically drop down to fill the discharge ports 4313, facilitating the next suction. The placement of the two feed guide posts 431 on the outside of the end reduces the distance the feed rod 41 must travel outward, improving suction efficiency.

[0067] The unloading device 43 can be provided with a connecting bracket 432, a unloading bracket 433, a unloading vertical linear module 434 and a unloading horizontal linear module 435. One end of the connecting bracket 432 is fixedly connected to the two unloading guide pillars 431, and the other end is fixedly connected to the slider of the unloading vertical linear module 434 to control the up and down displacement of the two unloading guide pillars 431, so as to control the two unloading guide pillars 431 to rise synchronously to make way for the serpentine structure 10 on the conveyor belt 2. The unloading vertical linear module 434 is fixed on the top of the unloading bracket 433, and the bottom of the unloading bracket 433 is connected to the slider of the unloading horizontal linear module 435. The unloading horizontal linear module 435 can be set in the same direction as the conveyor belt 2 to control the horizontal distance between the two unloading guide pillars 431 and the serpentine structure 10. The position of the unloading guide pillars 431 can be controlled and adjusted according to the length of different serpentine structures 10.

[0068] like Figure 6 、 Figure 7 and Figure 12 As shown, the ejecting mechanism 5 includes an ejecting rod 51 and an ejecting rod driving device 52 .

[0069] The ejector rod 51 is spaced above the conveyor belt 2 and is coaxially arranged at the rear end of the other end of the serpentine structure 10, that is, it is arranged on the other side of the feed rod 41 relative to the serpentine structure 10. It can be driven by the ejector rod driving device 52 and extend from the rear end serpentine hole 105 of the serpentine structure 10 into the interior of the serpentine structure 10.

[0070] The ejector rod 51 is provided with two back-to-back and radially protruding abutment portions 511 at the front movable end near the serpentine structure 10. The abutment portions 511 are respectively positioned close to the heads 71 ​​of the rivets 7 installed in the riveting holes 202 on both sides, and are used to limit the heads 71 ​​of the rivets 7 from exiting the riveting holes 202.

[0071] The length of the rod of the ejecting rod 51 extending into the snake-bone structure 10 is also not less than the distance between the two farthest riveting holes 202 in the axial direction inside the snake-bone structure 10 .

[0072] The ejection rod driving device 52 includes an ejection bracket 521 and an ejection linear module 522. The bottom of the ejection bracket 521 is connected to the slider of the ejection linear module 522. The end of the ejection rod 51 away from the serpentine structure 10 is fixed to the top of the ejection bracket 521, and the ejection linear module 522 is installed on the work table 1, and is located on one side of the conveyor belt 2 and is arranged in the same direction as the conveyor belt 2, so as to drive the ejection rod 51 to extend into or out of the serpentine structure 10, and to position the two abutting tops 511 at the rivet holes 202 between each serpentine node 20.

[0073] like Figure 4 and Figure 5 As shown, in this embodiment, the feed mechanism 4 and the ejection mechanism 5 can be simultaneously installed on a transverse plate 81. A roller set 82 is provided on the transverse plate 81 along the left-right direction, that is, perpendicular to the conveyor belt 2. The transverse plate 81 is driven by a transverse motor (not shown) to control the feed rod 41 of the feed mechanism 4 and the ejection rod 51 of the ejection mechanism 5 to move laterally out of the conveyor belt 2 to make way for the serpentine structure 10, thereby facilitating the forward conveyance of the assembled serpentine structure 10. Of course, the roller set 82 can also be replaced by a vertical linear module equivalent to the vertical linear module 434 of the unloading device 43 to control the feed rod 41 and the ejection rod 51 to move upward to make way, which can also achieve the corresponding purpose.

[0074] The riveting mechanism 6 includes two riveting machines 61 and two horizontal motion modules 62; the two riveting machines 61 and the two horizontal motion modules 62 are respectively arranged on the left and right sides of the conveyor belt 2, and the riveting punches 611 of the two riveting machines 61 are respectively oriented towards and aligned with the riveting holes 202 on the left and right sides of the serpentine structure 10. Each riveting machine 61 is fixedly mounted on the horizontal motion module 62, and the horizontal motion module 62 is respectively fixed on the work surface 1 on both sides of the conveyor frame 11. The horizontal motion module 62 is a common XY-axis linear module to control the riveting punches 611 of the riveting mechanism 6 to approach the riveting holes 202 of the serpentine structure 10 in the left and right directions, and to move forward and backward along the axial direction of the serpentine structure 10 to align each riveting hole 202.

[0075] The two riveting punches 611 of the two riveting presses 61 can move synchronously and simultaneously align with the two abutting tops 511 of the ejector rod 51 extending into the serpentine structure 10, and between the abutting tops 511 and the riveting punches 611 is a pre-installed rivet 7. Accordingly, the head 71 of the rivet 7 is limited by the abutting tops 511, and the rivet punch 611 is driven to punch the rod 72 of the rivet 7, so that the rivet 7 can be riveted to the rivet hole 202 of the serpentine joint 20, so that the two adjacent serpentine joints 20 are stably riveted together, and the two fixed side plates 32 of the fixing mechanism 3 make way for the riveting punch 611 to pass through, and the two fixed side plates 32 limit frames surround the two sides of the serpentine joint 20, while the fixed bottom plate 31 and the fixed top plate 33 also stably abut and clamp the serpentine joint 20, thereby preventing the serpentine joint 20 from being deformed and damaged during the punching process.

[0076] The working method of the present invention is as follows:

[0077] 1. The serpentine joints 20 of the serpentine structure 10 are pre-jointed together and fixed on the fixing mechanism 3. The fixing mechanism 3 is used to position the serpentine joints 20. The upper boss 331 and the lower boss 311 can ensure that the rivet holes 202 between adjacent serpentine joints 20 are accurately aligned. At the same time, the fixing mechanism 3 frame surrounds the serpentine joints 20 on all sides.

[0078] 2. The fixing mechanism 3 is connected and fixed to the conveyor belt 2, and the conveyor belt 2 transports the fixing mechanism 3 and the snake-bone structure 10 to the installation station.

[0079] 3. Driven by the vertical linear module 434 and the horizontal linear module 435 , the two blanking guide pins 431 approach the front end of the snake bone structure 10 , and the two discharge ports 4313 are adjacent to the front side of the snake bone hole 104 at the front end of the snake bone structure 10 .

[0080] 4. The feed rod 41 is driven by the transverse drive motor to move above the conveyor belt 2 (at this time, the ejector rod 51 also moves synchronously to the conveyor belt 2), and driven by the feed rod drive device 42, before extending into the front serpentine hole 104, it adsorbs and fixes two rivets 7 near the discharge port 4313, and then continues to move from the front serpentine hole 104 into the interior of the serpentine structure 10 so that the two rivet grooves 412 are aligned with one set of rivet holes 202, and then blows out the rivets 7 so that they are installed in the rivet holes 202 on both sides. Specifically, it can first move to the two sets of rivet holes 202 at the rear end of the serpentine structure 10, blow out the rivets 7 and install them in the rivet holes 202 on both sides of the serpentine structure 10, then withdraw from the interior of the serpentine structure 10, re-adsorb the rivets 7 from the discharge port 4313, and then install the rivets 7 in each rivet hole 202 along the serpentine structure 10 from back to front.

[0081] 5. After the rivets 7 have been installed in the riveting holes 202 on both sides of the rear end of the serpentine structure 10, the ejector rod 51 can be driven by the ejector rod driving device 52 to extend into the interior of the serpentine structure 10 from the rear end serpentine hole 105, and the two abutting parts 511 are aligned with the head 71 of the rivet 7. Then, the horizontal motion module 62 drives the riveting punches 611 of the two riveting presses 61 to move synchronously and simultaneously align with the outer side of the rivet 7 aligned with the two abutting parts 511 of the ejector rod 51, so as to punch the rod part 72 of the rivet 7, so that the rivet 7 is riveted and fixed on the connecting ear 201 between the serpentine segments 20.

[0082] 6. The feed rod 41 can be inserted from the front end of the serpentine structure 10, and then the rivets 7 can be installed in sequence from back to front, while the ejector rod 51 and the riveting machine 61 can be inserted along the rear end of the serpentine structure 10, and then move from back to front to rivet the rivets 7 in sequence, thereby improving production efficiency.

[0083] 7. When the rivets 7 between each serpentine bone section 20 of the serpentine bone structure 10 are installed, the feed rod 41, the ejector rod 51 and the unloading guide column 431 respectively withdraw from above the conveyor belt 2, so that the conveyor belt 2 can transport the assembled serpentine bone structure 10 out of the installation station, and the conveyor belt 21 continues to input the next serpentine bone structure 10, thereby accurately and efficiently completing the riveting fixation of the rivets 7 of the serpentine bone structure 10 automatically.

[0084] In summary, the present embodiment can automatically convey the pre-jointed snake bone structure 10 by setting the conveyor belt 2, and the snake bone sections 20 of the snake bone structure 10 can be fixed and positioned by the fixing mechanism 3 when they are joined but not riveted; a feeding rod 41 is provided with two rivet grooves 412 which can automatically absorb the rivet 7, and after being inserted into the interior of the snake bone structure 10, the rivet 7 is blown out and installed in the riveting hole 202, thereby automatically and accurately completing the assembly of the rivet 7; a ejecting rod 51 is provided to extend into the interior of the snake bone, and the ejecting rod 51 is The two abutting parts 511 respectively abut the head 71 of the limiting rivet 7, and the outside of the serpentine structure 10 is punched with the rivet 7 using the riveting punch 611 of the riveting machine 61, so that the rod 72 of the rivet 7 is formed to be limited to the outside of the connecting ear 201, thereby realizing the riveting fixation of the adjacent serpentine sections 20 by the rivet 7. Repeating the above steps can complete the rotational connection and combination of each serpentine section 20, thereby automatically and efficiently realizing the riveting assembly of the small-sized serpentine structure 10, reducing manual operation and improving production efficiency.

[0085] Example 2

[0086] like Figure 14 and Figure 15As shown, the structure of this embodiment is basically the same as that of the above-mentioned embodiment 1, and the main difference is that this embodiment omits the rod body of the ejecting rod 51 of the ejecting mechanism 5 and the ejecting rod driving device 52, and the two abutting parts 511 and the two protrusions 411 are all formed at the end of the movable end of the feeding rod 41, and the two abutting parts 511 are respectively located on the rear side of the two protrusions 411, so that the abutting parts 511 move inside the snake-bone structure 10 together with the feeding rod 41.

[0087] Therefore, after the feed rod 41 blows out two rivets 7 and installs them in the rivet holes 202, the rivet groove 412 of the feed rod 41 moves forward and exits the inside of the serpentine structure 10, so that the two abutment tops 511 are aligned with the heads 71 ​​of the two rivets 7. At this time, the two riveting machines 61 can be controlled to align and rivet the two rivets 7, and the operations of automatically assembling the rivets 7 and punching the rivets 7 can also be realized.

[0088] Example 3

[0089] like Figure 16 As shown, the structure of this embodiment is basically the same as that of the above-mentioned embodiment 1, and the main difference is that the feeding mechanism 4 of this embodiment is symmetrically arranged on both sides of the serpentine structure 10, and the two feeding rods 41 can respectively carry two abutment tops 511 and two protrusions 411 to extend into the interior of the serpentine structure 10 from the front end serpentine hole 104 and the rear end serpentine hole 105 of the serpentine structure 10, so as to start assembling and riveting the rivet 7 from the middle of the serpentine.

[0090] The length of the feed rod 41 extending into the serpentine structure 10 is not less than half of the distance between the two farthest rivet holes 202 in the axial direction of the serpentine structure 10 .

[0091] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, equivalent changes and modifications that do not depart from the principles of the present invention are still within the scope of protection of the present invention.

Claims

1. A snake-bone riveting device, characterized by: It includes a conveying mechanism, a fixing mechanism, a feeding mechanism, a pushing mechanism and a riveting mechanism; The conveying mechanism includes a conveyor belt, and the fixing mechanism is installed on the conveyor belt. The snake bone sections of the snake bone structure are pre-jointed into one body and fixedly limited in the fixing mechanism so as to move forward and backward with the conveyor belt; The feeding mechanism includes one or two feeding rods and a suction and blowing device, wherein the movable end of the feeding rod is movable to extend into or out of the interior of the serpentine structure, and the end of the movable end of the feeding rod is provided with two rivet grooves arranged opposite to each other, and the axes of the two rivet grooves are on the same horizontal plane as the axes of any two groups of riveted holes on the left and right sides of the serpentine structure; the rivet grooves are connected to the negative pressure device and the blowing device of the suction and blowing device, and the negative pressure device is used to provide negative pressure so that the rivet grooves absorb the rivets, and the blowing device is used to provide blowing output so that the rivet grooves eject the rivets, and the rivet rods are installed in the rivet holes toward the outside of the serpentine structure; The ejection mechanism includes two abutment parts arranged in opposite directions, which are formed at the end of the movable end of the feed rod and are located outside the two rivet grooves; the abutment parts are respectively positioned close to the rivet heads installed in the riveting holes on both sides, and are used to limit the inward movement of the rivet heads; The riveting mechanism includes two riveting presses, which are respectively arranged on both sides of the snake-bone structure and move forward and backward along the axial direction of the snake-bone structure. The riveting punches of the two riveting presses are respectively used to punch the two groups of riveting holes on the left and right sides of the snake-bone structure to cooperate with the top to punch the rivets; The movable end of the feed rod is provided with two convex parts arranged back to back and protruding radially, and the convex parts are respectively recessed with radial rivet grooves; the fixed end of the feed rod is provided with an air intake hole and an air outlet hole, and an air cavity is provided inside the feed rod body to connect the air intake holes, air outlet holes and two rivet grooves at both ends; the negative pressure device is connected to the air intake hole through a connecting pipe, and the blowing device is connected to the air outlet hole through a connecting pipe.

2. The snake-bone riveting device according to claim 1, characterized in that: The fixing mechanism includes a fixed bottom plate and a fixed top plate; the fixed bottom plate is fixed on the conveyor belt, and a plurality of lower bosses are protruding from the fixed bottom plate, and each lower boss is respectively inserted into the threading slot below each snake bone section; the fixed top plate is arranged at intervals above the fixed bottom plate, and a plurality of upper bosses are protruding downward from the bottom surface of the fixed top plate, and each upper boss is respectively inserted into the threading slot above each snake bone section.

3. The snake-bone riveting device according to claim 2, characterized in that: The fixing mechanism also includes two fixed side plates, which are arranged on both sides of the fixed bottom plate and the fixed top plate at intervals, and are used to limit the left and right movement of each snake bone joint, and the fixed side plates are respectively provided with a clearance through hole corresponding to each riveting hole.

4. The snake-bone riveting device according to claim 1, characterized in that: The feeding mechanism also includes a feeding device; the feeding device includes two feeding guide pillars symmetrically arranged on the left and right, the inside of the feeding guide pillars is a feeding trough, the top of the feeding trough is a feeding port, and the bottom is provided with a discharging port, the discharging ports of the left and right feeding guide pillars are oppositely arranged on both sides of the feeding rod, and the feeding trough contains a number of rivets stacked in sequence, the heads of the rivets are facing the outside of the discharging port, and the axis of the discharging port and the axis of the rivet trough are located on the same horizontal plane.

5. The snake-bone riveting device according to claim 4, characterized in that: The unloading device also includes a connecting bracket, a unloading bracket, a vertical linear module for unloading and a horizontal linear module for unloading; one end of the connecting bracket is fixedly connected to two unloading guide pillars, and the other end is fixedly connected to the slider of the vertical linear module for unloading; the vertical linear module for unloading is fixed on the top of the unloading bracket, and the bottom of the unloading bracket is connected to the slider of the horizontal linear module for unloading; the horizontal linear module for unloading is arranged in the same direction as the conveyor belt.

6. The snake-bone riveting device according to claim 1, characterized in that: The riveting mechanism also includes two horizontal motion modules; the two horizontal motion modules are respectively arranged on the left and right sides of the conveyor belt; the horizontal motion module is an XY axis linear module, which is used to control the riveting punch of the riveting mechanism to approach the riveting holes of the serpentine structure in the left and right directions, and to move forward and backward along the axial direction of the serpentine structure to align the riveting holes.

7. The snake-bone riveting device according to claim 1, characterized in that: The feeding mechanism also includes a feeding rod driving device; the fixed end of the feeding rod is connected to the feeding rod driving device, and the feeding rod driving device is used to drive the feeding rod to extend into or exit the serpentine structure; the feeding mechanism is installed on the transverse moving plate, and the transverse moving plate is driven by the transverse moving motor to control the feeding rod of the feeding mechanism to move laterally out of the conveyor belt.

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