Pot body punching and handle riveting machine

Abstract

The application discloses a pot punching and handle riveting machine, one side of a rack box body is arranged with a pot supporting table, an inner pot surface of a pot B is pressed and pasted on a pot wall supporting surface of the pot supporting table, a punching punch rod with up and down displacement is arranged vertically on the middle space of the pot wall supporting surface, when the punching punch rod is displaced upward to a high position, the distance between the top end of the punching punch rod and the supporting surface is greater than or equal to the thickness of the pot wall, a punching punch sleeve with up and down displacement is arranged vertically above the punching punch rod, when the punching punch sleeve is displaced downward, the lower end of the sleeve is pressed on the outer pot surface of the pot B or a handle connecting plate C1; the front end of a rivet push rod has a rivet seat for supporting a rivet head A1 of a rivet A; the pot punching and riveting two operation procedures are combined into one, the machining procedures are reduced, the positioning precision and efficiency of the rivet A and the riveting hole are improved, and the riveting quality is improved.

Description

Technical Field

[0001] This invention relates to a riveting device for pot body and handle, specifically to a pot body punching and handle riveting machine. Background Technology

[0002] Non-stick pans and other small-capacity cookware are particularly suitable for processing small quantities of food at home. For ease of use, a rod-shaped handle or ear-shaped lug is needed on the outer wall of the pan near the rim. Common connection methods between the handle or lug and the pan body include welding, screws, and riveting. Riveting is the preferred method for non-stick pans.

[0003] To improve riveting efficiency, a corresponding solution was disclosed in a paper entitled "Continuous Automatic Riveting Equipment for Butt Joint Processing of Pot Body and Pot Handle" (CN216705826U, hereinafter referred to as Document 1). The second hydraulic cylinder 14 is fixedly equipped with a riveting device 15 at its telescopic end, which is responsible for riveting the through hole on the side wall of the pot body 1 and the rivet hole at the front end of the pot handle 2. However, this solution does not involve the specific details of how the riveting device 15 constrains the rivet.

[0004] The solution disclosed in the document entitled "An Adjustable Riveting Device" (CN 108526376 A, hereinafter referred to as Document 2) can only solve the riveting operation of two rivets at the same time. This solution also requires first machining riveting holes on the cookware body and handle, and then using the riveting device provided to try riveting.

[0005] Both References 1 and 2 mentioned above can automate the riveting process, and Reference 2 also solves the problem of completing two rivet riveting operations at once, effectively improving riveting quality and efficiency. However, setting the pot body punching process as an independent process requires adding a pot body punching equipment. In addition, the pot body needs to be transferred and repositioned during riveting. In Reference 2, the rivet constraint scheme during riveting is complex, and Reference 2 does not address how the rivet's posture is adjusted and constrained during the rivet supply process, nor does it disclose the specific scheme of how the rivet is inserted into the riveting hole on the pot body. In Reference 1, the rivet's posture during riveting is horizontal, which further increases the difficulty of constraining the rivet when it is inserted into the riveting hole. Summary of the Invention

[0006] The purpose of this invention is to provide a pot body punching and handle riveting machine, which completes the riveting operation with the handle after punching the pot body, thereby improving riveting efficiency and riveting quality.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a pot body punching and handle riveting machine, wherein a pot body support is arranged on one side of the frame housing, the inner pot surface of pot body B is pressed against the pot wall support surface of the pot body support, a vertically arranged punching head with a vertically displaceable core is arranged in the middle space of the pot wall support surface, when the punching head moves upward to a high position above the pot wall support surface, the distance between the top of the punching head and the pot wall support surface is greater than or equal to the pot wall thickness, and a vertically arranged punching sleeve with a vertically displaceable core is correspondingly arranged above the punching head. When the sleeve moves downward, the lower end of the sleeve presses against the outer surface of the pot body B or the handle connecting plate C1; the front end of the rivet push rod has a rivet seat that supports the rivet head A1 of the rivet A. When the rivet push rod moves, it is in the clearance position where the punching punch and the punching sleeve cooperate to carry out the punching operation, or when the punching punch moves down to a low position after the riveting hole is punched, the rivet push rod supports the rivet A to move to the bottom of the riveting hole on the pot body and moves upward to push the rivet A into the riveting hole; the punching sleeve has a riveting core rod that moves up and down. The riveting core rod presses down on the rod end of the rivet rod A2 to press out the riveting joint.

[0008] The above technical solution first involves a punch and a punch sleeve working together to punch the riveting hole for the handle on the pot body B. While keeping the punched hole position unchanged, a rivet pusher supports rivet A and pushes it below the riveting hole on the pot body B. Then, rivet A is pushed upwards and inserted into the riveting hole. Finally, the rivet pusher and the riveting mandrel work together to perform the riveting operation on rivet A, completing the riveting of the pot body and the handle. This riveting process combines the punching and riveting operations into one, reducing processing steps, improving the positioning accuracy and efficiency of rivet A and the riveting hole, and enhancing the riveting quality. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0010] Figure 2 yes Figure 1 Enlarged schematic diagram of the pot body support section;

[0011] Figure 3 , 4 They are Figure 1 Top-down 3D view of the front and rear sides behind the hidden rack enclosure;

[0012] Figure 5 yes Figure 1 A 3D view of the front side of the hidden rack enclosure;

[0013] Figure 6 , 7 They are Figure 3 , 4 A magnified view of a portion of the image;

[0014] Figure 8 yes Figure 3 A magnified view of a portion of the image;

[0015] Figure 9 yes Figure 8 A schematic diagram illustrating the process of pushing rivet A in the middle;

[0016] Figure 10 This is a three-dimensional structural diagram of the rivet push rod.

[0017] Figure 11 , 12 It is a schematic diagram of the three-dimensional structure and cross-sectional structure of the front end of the swing support rod;

[0018] Figure 13 This is a cross-sectional view of the riveted structure.

[0019] Figure 14 This is a schematic diagram of the structure of the punched sleeve 30 with built-in riveted core rod;

[0020] Figure 15 This is a magnified schematic diagram of a portion of the image. Detailed Implementation

[0021] See Figure 15 Taking a non-stick pan as an example, the pan body B and the handle C are riveted together using rivets A. The handle C is usually a stamped part, and the rivet holes on the handle connecting plate C1 of the handle C, which are riveted to the pan body B, are formed simultaneously with the forming of the handle C. Therefore, the solution provided in this application only needs to address the forming of the rivet holes on the pan body B. First, it should be noted that when punching rivet holes on the pan body B, either the pan body B can be placed on a riveting machine for punching, or the handle C can be placed at a designated connection mounting position on the pan body B for punching. In the latter case, the punching punch 20 and punch sleeve 30 need to be aligned with the already formed rivet hole positions on the handle connecting plate C1 to avoid damaging the already formed rivet holes on the handle connecting plate C1 during punching, while ensuring that the punched rivet holes on the pan body B are aligned with the already formed rivet holes on the handle connecting plate C1 for easy insertion of rivets A.

[0022] Combination Figures 1-8A pot body punching and handle riveting machine is provided. A pot body support platform 10 is arranged on one side of the machine frame housing 1. The inner pot surface of the pot body B is pressed against the pot wall support surface 11 of the pot body support platform 10. A vertically arranged punching punch 20 with a vertically displaceable core is arranged in the middle of the empty space of the pot wall support surface 11. When the punching punch 20 moves upward to a high position above the pot wall support surface 11, the distance between the top of the punching punch 20 and the pot wall support surface 11 is greater than or equal to the pot wall thickness. A vertically arranged punching sleeve 30 with a vertically displaceable core is correspondingly arranged above the punching punch 20. When the punching sleeve 30 moves downward, the lower end of the sleeve is pressed... It is placed on the outer pot surface of the pot body B or on the handle connecting plate C1; the front end of the rivet push rod 40 has a rivet seat 41 that supports the rivet head A1 of the rivet A. When the rivet push rod 40 is displaced, it is in the clearance position where the punching punch 20 and the punching sleeve 30 cooperate to carry out the punching operation. Or, when the punching punch 20 moves down to a low position after the riveting hole is punched, the rivet push rod 40 supports the rivet A to move to the bottom of the riveting hole on the pot body B and moves upward to push the rivet A into the riveting hole; the punching sleeve 30 has a riveting core rod 50 that moves up and down. The riveting core rod 50 presses down on the rod end of the rivet rod A2 to press out the riveting joint.

[0023] The pot support 10 in this application is used to place the pot body B to be processed. The inner pot surface of the pot body B is pressed against the pot wall support surface 11 of the pot support 10. This allows the handle C to be placed against the outer wall surface of the pot body B, avoiding direct contact between the handle C and the pot wall support surface 11, thus preventing a blind spot for observing the posture of the handle C and ensuring that the posture of the handle C is easy to observe and fix. The punching head 20 is arranged in the middle of the empty space of the pot wall support surface 11. The vertically displaced punching head 20 and the punching sleeve 30 cooperate with each other to perform punching operations on the pot wall of the pot body B, ensuring the integrity of the riveting holes along the contour on the inner pot surface of the pot body B. The fit between the rivet head A1 and the inner surface of the pot body B is guaranteed. Even if there are stamping marks on the rivet head A2, which protrudes from the outside of the handle connecting plate C1, the overall appearance quality of the inner surface of the pot body B is not affected. In addition, the pot body B is arranged on the pot wall support surface 11 of the pot body support platform 10. The pot body B is in a downward angled position. The pot body support platform 10 and the punch 20 are placed in the cavity area of ​​the pot body B. The rod of the punch sleeve 30 is located outside the pot body B. The vertical displacement of the punch sleeve 30 will not interfere with the pot mouth edge of the pot body B on the opposite side of the rivet hole.

[0024] After the punching operation on the pot wall of pot body B is completed, the punching punch 20 and the punching sleeve 30 move vertically and vertically, or the punching punch 20 moves downward to a lower position separated from pot body B. At this time, the rivet push rod 40, which is in the waiting position, begins to move. The rivet A on the rivet seat 41 at the front end of the rivet push rod 40 moves to below the riveting hole on pot body B and moves upward to push the rivet rod A2 into the riveting hole. The riveting core rod 50 inside the punching sleeve 30 moves downward and cooperates with the rivet seat 41 to complete the upsetting of the rivet rod A2 into the rivet joint. The rivet head A1 located on the inner surface of pot body B, under the support and maintenance of the rivet seat 41, provides reliable punching support force to ensure the stability of the riveting connection, and maintains the overall integrity of the appearance of the rivet head A1, ensuring the quality of the inner pot surface of pot body B.

[0025] Because the punch sleeve 30 has a built-in riveting core rod 50 that can move up and down, it ensures that the same workstation can complete the punching operation through the cooperation between the punching punch 20 and the punch sleeve 30, and can also complete the upsetting riveting rod A2 into an upsetting riveting joint by the cooperation between the rivet seat 41 and the riveting core rod 50. In short, the present invention realizes the completion of the two processes of punching and riveting in one workstation, which significantly improves the connection efficiency of the pot handle, saves equipment investment costs and maximizes the utilization of production space.

[0026] It should also be noted that the robotic arm clamp can be used to clamp the pot body B or simultaneously clamp the pot body B and the handle C and accurately position and place them on the pot wall support surface 11 in this application. The robotic arm clamp that achieves the above function is prior art and is not the technical problem to be solved in this application, so it will not be described in detail here.

[0027] To facilitate the arrangement of the punching head 20 and to provide support for pots of various shapes, the preferred embodiment of the present invention is that the pot support platform 10 is composed of a U-shaped plate with its surface facing the plumb line. The open side plate of the U-shaped plate constituting the pot support platform 10 is fixedly connected to the front wall of the frame housing 1. The punching head 20 is arranged in the U-shaped space enclosed by the U-shaped plate constituting the pot support platform 10. The upper part of the pot support platform 10 is an inclined surface 11a with a lower front and a higher rear. The higher side of the inclined surface 11a is a flat surface 11b extending backward. The pot wall support surface 11 is composed of the inclined surface 11a and the flat surface 11b.

[0028] In the above scheme, the pot wall support surface 11 is set as two parts: an inclined surface 11a and a flat surface 11b. This is to match the shape of the pot body A. The flat surface 11b refers to a flat state with approximately equal height in the front and back directions, and a curved surface between the left and right sides. The curvature of this curved surface is consistent with the circumferential curvature of the rivet hole position of the pot body B to be riveted and the curvature of the transition from the bottom of the pot to the rim. The inclined surface 11a refers to a surface that gradually increases in height from front to back. The inclined position in this direction is also consistent with the transition shape of the pot body B from the bottom of the pot to the rim. The inclined surface 11a is also a curved surface with appropriate curvature in the left and right directions. This curved surface matches the circumferential curvature of the pot body at the corresponding position. It should be noted that the punch 20 and the punch sleeve 30 are located in the area of ​​the flat surface 11b. When punching, the pot body B can be reliably and stably pressed onto the flat surface 11b by the downward movement of the punch sleeve 30, and then the punch 20 is driven to rise to complete the punching of the riveting hole.

[0029] Preferred, such as Figure 11 , 12 As shown, the punch 20 includes a punch rod 21, which is detachably inserted into a blind hole or stepped hole in the punch seat 22. Detachably inserting the punch rod 21 into the punch seat 22 facilitates the replacement of severely worn punch rods. To prevent the punch rod 21 from becoming stuck in the riveting hole and failing to move synchronously downwards when the punch seat 22 moves downwards after punching due to friction between the riveting hole punched on the pot body B and the punch rod 21, a structure is provided on the punch seat 22 to axially limit the movement of the punch rod 21. See the specific solution below. Figure 12 , 13 The punch seat 22 is a T-shaped column with a stepped hole that runs vertically through it, with a larger diameter at the lower end and a smaller diameter at the upper end. The lower T-shaped head of the punch rod 21 is positioned at the T-shaped hole at the lower end of the punch seat 22, thus forming a limiting fit that allows the punch rod 21 and the punch seat 22 to move downwards synchronously. To facilitate the replacement of the punch rod 21, the punch seat 22 is inserted into a blind hole with its open end facing upwards at the front end of the swing support rod 60. A locking screw 23 is provided on the wall of the blind hole and locks it at the stepped part on the outer wall of the punch seat 22. By loosening the locking screw 23, the punch rod 21 and the punch seat 22 can be removed from the blind hole at the front end of the swing support rod 60. By tightening the locking screw 23, the punch rod 21 and the punch seat 22 are reliably fixed in the blind hole at the front end of the swing support rod 60, allowing punching operations to be performed.

[0030] like Figure 3 , 4As shown in Figure 5, the punching head 20 is fixed to the upper part of the front end of the swing support rod 60 when it is in a free state. The front section of the swing support rod 60 near the front end is hinged to the rod end of the piston rod 71 of the vertically arranged first oil cylinder 70 by the front hinge shaft 61. The rear end of the swing support rod 60 is hinged to the platform 2 inside the frame housing 1 by the rear hinge shaft 62. The swing surface of the swing support rod 60 is located on the plumb surface. The front hinge shaft 61 and the rear hinge shaft 62 are arranged in a horizontal direction parallel to each other.

[0031] like Figure 5 As shown, the rear end of the swing support rod 60 is hinged to the rear of the frame housing 1 via a rear hinge shaft 62. This allows for a suitable increase in the length of the swing support rod 60. During the punching stroke of the punching punch 20 at the front end of the swing support rod 60 to punch the riveting hole, the deflection angle of the punching punch 20 core is extremely small and negligible from the start to the end of the punching process. This ensures that the core of the punching punch 20 is in a vertical position to complete the punching of the riveting hole. Therefore, the core direction of the punched riveting hole is consistent with the normal direction at the punching point. The support rod 60 is made of a plate with an appropriate thickness. The plate surface is located within the plumb plane and the swing surface is located within the plumb plane. This ensures that the swing support rod 60 has reliable bending resistance. In particular, the front hinge shaft 61 of the piston rod 71, which is the power fulcrum for driving the swing of the swing support rod 60, is located close to the front end of the swing support rod 60. The deformation of the front section of the swing support rod 60 before the front hinge shaft 61 under bending moment is very small. This further ensures the alignment of the rod core during the punching stroke of the punching punch 20 and ensures the punching accuracy of the riveting hole.

[0032] like Figure 13 As shown, the lower front end of the rivet push rod 40 has a recess 42. When the rivet push rod 40 is positioned where the push rivet A is inserted into the riveting hole, the punch rod 21 is placed in the recess 42, and the punch seat 21 supports the lower front end of the rivet push rod 40 from bottom to top. During the riveting process, the punch rod 21 is placed within the area of ​​the recess 42, so that the punch seat 22 supports the lower front end of the rivet push rod 40 from bottom to top. This is extremely important for the rivet push rod 40, which needs to be suspended and has a swinging motion. That is, during the riveting process, when the rivet rod A2 is subjected to the downward pressing force of the riveting core rod 50, the pressing force is transmitted from the rivet head A1 to the rivet seat 41. The concentrated load on the rivet seat 41 is borne by the punch seat 22, and then the swinging support rod 60 provides reliable support, thereby providing stable and reliable support for the rivet head A1 during riveting.

[0033] like Figure 3 , 4As shown in Figures 5, 6, 7, and 8, the middle section of the rivet push rod 40 is hinged to the slide block 44 by the first hinge shaft 46. The slide block 44 slides along the guide rail 45 arranged in the front-rear direction. The guide rail 45 is fixed on the platform 2 inside the frame housing 1. The lower end of the boom rod 81 of the U-shaped hanger 80 with the bayonet facing downward is hinged by the second hinge shaft 83. The second hinge shaft 83 is located behind the first hinge shaft 46 and the two shafts are arranged horizontally parallel. When the U-shaped hanger 80 moves up and down, it drives the rivet push rod 40 to swing in the plumb plane.

[0034] The rear end of the rivet push rod 40 is connected to a second cylinder 150. The second cylinder 150 is fixed on the platform 2 inside the frame housing 1. The second cylinder 150 drives the slide 44 to move the rivet push rod 40 back and forth along the direction defined by the guide rail 45.

[0035] The lower end of the lower support leg 841 of the gantry frame 84 is fixedly connected to the slide block 44. The second hydraulic cylinder 85 is vertically installed in the middle of the upper crossbeam 842 of the gantry frame 84. The piston rod end of the second hydraulic cylinder 85 is connected to the middle of the upper crossbeam 82 of the U-shaped hanger 80.

[0036] In the above scheme, when the second hydraulic cylinder 85 extends or retracts, the U-shaped hanger 80 drives the rivet push rod 40 to rotate around the first hinge axis 46 at a small angle. The small angle swing range is the travel range of the rivet rod A2 of rivet A from the opening of the riveting hole into the riveting hole. It should be noted that, in order to avoid the U-shaped hanger 80, the gantry frame 84 is arranged at an appropriate distance in front of the U-shaped hanger 80, and at both ends of the upper crossbeam 842, there are rearward-extending cantilever arms 8421 used to hinge and fix the cylinder body of the second hydraulic cylinder 85.

[0037] like Figure 6 , 7 As shown in Figures 8 and 10, the rivet push rod 40 has a groove-shaped cross-section with the groove opening facing upwards. The front section of the rivet push rod 40 has a built-in edge strip 47. A push rod 48 is installed in the groove cavity of the rivet push rod 40. The front end of the push rod 48 has a notch 481 for locking the rivet rod A2. The notch 481 points forward. When the push rod 48 is displaced, it is located behind the rear end of the edge strip 47 or pushes the rivet A to the position where the rivet seat 41 is located.

[0038] Preferably, the rear end of the push rod 48 is connected to the piston rod end of the first cylinder 90, and the first cylinder 90 is arranged in a front-to-back direction.

[0039] Preferably, the rivet head A1 of the rivet A located inside the rivet guide tube 100 faces downward and the rivet rod A2 faces upward, falling into the groove of the rivet push rod 40 near the rear end of the edge strip 47.

[0040] A tube seat 110 is provided at the slot of the rivet push rod 40 near the rear end of the edge strip 47, and the guide tube 100 is connected to the tube seat 110 from top to bottom.

[0041] To push rivet A, with its head A1 facing downwards and rivet shank A2 facing upwards, from the location of rivet seat 110 to rivet seat 41 and maintain this posture throughout the pushing process, the distance between the notch 481 of push rod 48 and the bottom of the groove of rivet push rod 40 is arranged as follows: Figure 9 As shown, the spacing matches the thickness of the rivet head A1, meaning the notch 481 is positioned at the junction of the rivet shank A2 and the rivet head A1. This is equivalent to the lower surface of the notch 481 being close to the plane of the rivet head A1, thus providing the constraint condition to maintain the posture of the rivet A. Figure 9 As shown, the cross-section of the push rod 48 is a groove with the slot facing downwards. The notch 481 is opened at the front end of the bottom plate of the groove, and the height of the groove wall matches the thickness of the rivet head A1.

[0042] The tube seat 110 is fixed on the platform 2. The push rod 48 moves back and forth between the lower end of the rivet guide tube 100 and the bottom of the groove of the rivet push rod 40. There is a door-shaped notch 101 on the front side wall of the lower section of the rivet guide tube 100 for the rivet rod A2 in a vertical position to pass through.

[0043] The above solution involves placing the lower end of the rivet guide tube 100 and the bottom of the rivet push rod 40 groove as close as possible. The distance between the two ensures that the push rod 48 moves forward from the rear of the rivet guide tube 100 to push the rivet A. At this time, the rivet head A1 is located below the rivet guide tube 100 and the upper part of the rivet rod A2 is still located inside the rivet guide tube 100, which can maintain the vertical posture of the rivet rod A2.

[0044] To ensure that the rivet rod A2 remains vertically positioned on the bottom of the rivet push rod 40 and remains vertically upward when it leaves the rivet guide tube 100, a flap door 111 is provided at the door-shaped notch 101. The upper edge of the flap door 111 is fixedly connected to a horizontal rotating shaft 112. The axis of the rotating shaft 112 is perpendicular to the length direction of the push rod 48. The shaft of the rotating shaft 112 is hinged to the tube seat 110 and an eccentric sleeve 120 is provided on the shaft that passes through the outside of the tube seat 110. When the rotating shaft 112 rotates due to the gravity of the eccentric sleeve 120, it causes the flap door 111 to approach the door-shaped notch 101.

[0045] When the rivet pusher 40 pushes the rivet A, it only needs to overcome the reset torque applied to the flap door 111 by the eccentric sleeve 120. Figure 9As shown, when rivet A pushes the flip door 111 upward to the appropriate opening height, rivet A is pushed forward, and the flip door 111 flips downward to reset to near the door-shaped notch 101. When subsequent rivets A arrive, rivet A still maintains the upright posture with the rivet rod A2 facing upward.

[0046] The following describes the construction scheme of the punch sleeve 30 and its built-in riveting core rod 50.

[0047] Combination Figure 14 , 15 The punch sleeve 30 is coaxially connected to the lower end of the punch cylinder piston rod 131 of the vertically arranged punch cylinder 130. The punch cylinder piston rod 131 is tubular. The riveting core rod 50 passes through the upper end cover of the punch cylinder 130, the punch cylinder piston rod 131 and the punch sleeve 30. The upper end of the riveting core rod 50 located above the upper end cover of the punch cylinder 130 is coaxially connected to the lower end of the piston rod 141 of the riveting cylinder 140.

[0048] The riveting cylinder 140 and the punching cylinder 130 are respectively fixed on the frame housing 1 and the connecting bracket 3.

[0049] The above scheme achieves the co-centric arrangement of the punch sleeve 30 for punching the riveting hole of the pot body B and the riveting core rod 50 formed by upsetting the end of the rivet rod A2. This ensures that the riveting operation of rivet A can be carried out in a timely manner after the riveting hole is formed first.

[0050] like Figure 2 As shown, the lower section of the punch sleeve 30 is connected to an opposing air inlet pipe 31 and a discharge pipe 32. The air inlet pipe 31 and the discharge pipe 32 are connected to the cavity of the punch sleeve 30, and the air inlet pipe 31 is connected to a pressurized air source. After the riveting holes are punched, there is a high probability that the circular waste material will accumulate in the cavity of the punch sleeve 30, which needs to be cleaned out. With the help of the pressurized air source of the air inlet pipe 31 connected to the pressurized air source, the waste material is smoothly and timely discharged from the discharge pipe 32.

[0051] The following is a brief explanation of the punching of riveting holes and the riveting process:

[0052] The second cylinder 150 drives the slide block 44 to move the rivet push rod 40 backward along the direction defined by the guide rail 45 to the rear position of the waiting state. At this time, the first cylinder 90 pushes the push rod 48 forward to push the rivet A to the rivet seat 41 at the front end of the rivet push rod 40. The second oil cylinder 85 retracts and drives the U-shaped hanger 80 to drive the rivet push rod 40 to rotate around the first hinge axis 46, so that the rivet push rod 40 is in an inclined state with the rear end high and the front end low. At this time, the rivet A is located at the edge of the pot mouth of the pot body B and is in a close avoidance position with the punch 20.

[0053] The punching punch 20 and the punching sleeve 30 work together to perform punching operations. After punching is completed, the punching punch 20 moves downward. The second cylinder 150 drives the slide 44 to move the rivet push rod 40 forward along the direction defined by the guide rail 45 to directly below the rivet hole. The second oil cylinder 85 extends and drives the U-shaped hanger 80 to drive the rivet push rod 40 to rotate around the first hinge shaft 46 so that the rivet push rod 40 is in a flat position. During this process, the rivet A is inserted into the rivet hole.

[0054] The punch 20 moves upward to the punch seat 22, which supports the lower part of the front end of the rivet push rod 40. The riveting core rod 50 moves downward to complete the upsetting of the upper end of the rivet rod A2 of the rivet A. The riveting connection process between the handle C and the pot body B is completed.

Claims

1. A pot body punching and handle riveting machine, characterized in that: A pot support platform (10) is arranged on one side of the frame housing (1). The inner pot surface of the pot body (B) is pressed against the pot wall support surface (11) of the pot support platform (10). A vertically arranged punching punch (20) with a vertically displaceable core is set in the middle space of the pot wall support surface (11). When the punching punch (20) moves upward to a high position above the pot wall support surface (11), the distance between the top of the punching punch (20) and the pot wall support surface (11) is greater than or equal to the pot wall thickness. A vertically arranged punching sleeve (30) with a vertically displaceable core is set above the punching punch (20). When the punching sleeve (30) moves downward, the lower end of the sleeve is pressed against the outer pot surface of the pot body (B). Or on the handle connecting plate (C1); the front end of the rivet push rod (40) has a rivet seat (41) that supports the rivet head (A1) of the rivet (A). When the rivet push rod (40) moves, it is in the clearance position where the punching punch (20) and the punching sleeve (30) cooperate to carry out the punching operation. Or when the punching punch (20) moves down to a low position after the rivet hole is punched, the rivet push rod (40) supports the rivet (A) to move to the bottom of the rivet hole on the pot body (B) and moves upward to push the rivet (A) into the rivet hole. The punching sleeve (30) has a rivet core rod (50) that moves up and down. The rivet core rod (50) presses down the rod end of the rivet rod (A2) to press out the rivet joint.

2. The pot body punching and handle riveting machine according to claim 1, characterized in that: The pot support platform (10) is composed of a U-shaped plate with the plate surface located in the vertical direction. The open side plate of the U-shaped plate constituting the pot support platform (10) is fixedly connected to the front box wall of the frame box (1). Punching punches (20) are arranged in the U-shaped space surrounded by the U-shaped plate constituting the pot support platform (10). The upper part of the pot support platform (10) is a slope (11a) with a lower front and a higher rear. The higher side of the slope (11a) is a flat surface (11b) extending backward. The pot wall support surface (11) is composed of the slope (11a) and the flat surface (11b).

3. The pot body punching and handle riveting machine according to claim 1, characterized in that: The punch (20) includes a punch rod (21), which is detachably inserted into a blind hole or stepped hole in the punch seat (22).

4. The pot body punching and handle riveting machine according to claim 1 or 3, characterized in that: The punch (20) is fixed on the upper front end of the swing rod (60) in a free state. The front end of the swing rod (60) is connected to the piston rod (71) of the vertically arranged first oil cylinder (70) by the front hinge shaft (61). The rear end of the swing rod (60) is connected to the platform (2) inside the frame housing (1) by the rear hinge shaft (62). The swing surface of the swing rod (60) is located on the plumb surface. The front hinge shaft (61) and the rear hinge shaft (62) are arranged in parallel in the horizontal direction.

5. The pot body punching and handle riveting machine according to claim 3, characterized in that: The lower front end of the rivet push rod (40) has a recess (42). When the rivet push rod (40) is located at the position where the push rivet (A) is inserted into the riveting hole, the punch rod (21) is placed in the recess (42) and the punch seat (22) supports the lower front end of the rivet push rod (40) from bottom to top.

6. The pot body punching and handle riveting machine according to claim 1 or 5, characterized in that: The middle section of the rivet push rod (40) is hinged to the slide (44) by the first hinge shaft (46). The slide (44) slides along the guide rail (45) arranged in the front and rear direction. The guide rail (45) is fixed on the platform (2) inside the frame housing (1). The lower end of the rivet push rod (40) and the boom rod (81) of the U-shaped hanger (80) with the bayonet facing downward is hinged by the second hinge shaft (83). The second hinge shaft (83) is located behind the first hinge shaft (46) and the two shafts are arranged horizontally parallel. When the U-shaped hanger (80) moves up and down, it drives the rivet push rod (40) to swing in the plumb plane.

7. The pot body punching and handle riveting machine according to claim 6, characterized in that: riveting The rear end of the rivet push rod (40) is connected to a second cylinder (150). The second cylinder (150) is fixed on the platform (2) inside the frame housing (1). The second cylinder (150) drives the slide (44) to move the rivet push rod (40) back and forth along the direction defined by the guide rail (45).

8. The pot body punching and handle riveting machine according to claim 6, characterized in that: The lower end of the lower support leg (841) of the gantry frame (84) is fixedly connected to the slide (44). A second oil cylinder (85) is vertically installed in the middle of the upper crossbeam (842) of the gantry frame (84). The piston rod end of the second oil cylinder (85) is connected to the middle of the upper crossbeam (82) of the U-shaped hanger (80).

9. The pot body punching and handle riveting machine according to claim 1 or 5, characterized in that: The rivet push rod (40) has a groove shape with the groove opening facing upward. The front end of the rivet push rod (40) has a built-in edge strip (47). The rivet push rod (48) is installed in the groove cavity of the rivet push rod (40). The front end of the push rod (48) has a notch (481) for locking the rivet rod (A2). The notch (481) points forward. When the push rod (48) is displaced, it is located behind the rear end of the edge strip (47) or pushes the rivet (A) to the location of the rivet seat (41).

10. The pot body punching and handle riveting machine according to claim 9, characterized in that: The rear end of the push rod (48) is connected to the piston rod end of the first cylinder (90), which is arranged in the front-to-back direction.

11. The pot body punching and handle riveting machine according to claim 9, characterized in that: The rivet head (A1) of the rivet (A) located inside the rivet guide tube (100) is facing down and the rivet rod (A2) is facing up. It falls into the groove of the rivet push rod (40) near the rear end of the edge strip (47).

12. The pot body punching and handle riveting machine according to claim 11, characterized in that: A tube seat (110) is provided at the slot of the rivet push rod (40) near the rear end of the edge strip (47), and the rivet guide tube (100) is connected to the tube seat (110) from top to bottom.

13. The pot body punching and handle riveting machine according to claim 11, characterized in that: The spacing between the notch (481) of the push rod (48) and the bottom of the groove of the rivet push rod (40) is arranged such that the distance of the spacing matches the thickness of the rivet head (A1).

14. The pot body punching and handle riveting machine according to claim 11, characterized in that: The tube seat (110) is fixed on the platform (2). The push rod (48) is displaced between the lower end of the rivet guide tube (100) and the bottom of the groove of the rivet push rod (40). There is a door-shaped notch (101) on the front wall of the lower section of the rivet guide tube (100) for the rivet rod (A2) in a vertical position to pass through.

15. The pot body punching and handle riveting machine according to claim 14, characterized in that: A flap door (111) is provided at the door-shaped notch (101). The upper edge of the flap door (111) is fixedly connected to a horizontal rotating shaft (112). The axis of the rotating shaft (112) is perpendicular to the length direction of the push rod (48). The shaft of the rotating shaft (112) is hinged to the tube seat (110) and an eccentric sleeve (120) is provided on the shaft that passes through the outside of the tube seat (110). When the rotating shaft (112) is rotated due to the gravity of the eccentric sleeve (120), the flap door (111) is driven to approach the door-shaped notch (101).

16. The pot body punching and handle riveting machine according to claim 1, characterized in that: The punch sleeve (30) is coaxially connected to the outer end of the punch cylinder piston rod (131) of the vertically arranged punch cylinder (130). The punch cylinder piston rod (131) is tubular. The riveting core rod (50) is inserted into the upper end cover of the punch cylinder (130), the punch cylinder piston rod (131) and the punch sleeve (30). The upper end of the riveting core rod (50) located above the upper end cover of the punch cylinder (130) is coaxially connected to the lower end of the piston rod of the riveting cylinder (140).

17. The pot body punching and handle riveting machine according to claim 16, characterized in that: The riveting cylinder (140) and the punching cylinder (130) are respectively fixed on the connecting bracket (3) on the frame housing (1).

18. The pot body punching and handle riveting machine according to claim 1 or 16, characterized in that: The lower section of the punch sleeve (30) is connected to an opposing air inlet pipe (31). The discharge pipe (32), the air inlet pipe (31), the discharge pipe (32) are connected to the cavity of the punch sleeve (30), and the air inlet pipe (31) is connected to the pressure air source.

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