A heating tube and flange crimping device

Abstract

The present application relates to the technology of connecting round pipe and flange, and aims to provide a heating pipe and flange pressing device. The device comprises: a heating pipe positioning mechanism for fixing and limiting the heating pipe; a flange positioning mechanism for fixing and limiting the flange; the flange positioning mechanism cooperates with the heating pipe positioning mechanism to make the flange and the end of the heating pipe in relative position; a pneumatic locking mechanism for driving the flange positioning mechanism to lock the flange and butt the heating pipe; an upper die holder cooperating with the flange positioning mechanism for pressing the flange and clamping the heating pipe; a lower die holder for supporting the flange positioning mechanism, the pneumatic locking mechanism and the upper die holder and limiting the action direction of the upper die holder. The present application can realize the rapid installation and positioning of the heating pipe and the flange, making the workpiece operation more simple and practical; ensure the stability of the final product pressing size, improve the flexibility and rapidity of product assembly. On the premise of ensuring product quality, realize rapid production, greatly improve production efficiency.

Description

Technical Field

[0001] This invention relates to the technology of connecting round pipes and flanges, and particularly to a crimping device for heating pipes and flanges. Background Technology

[0002] In existing technologies, the fixing and crimping of heating elements and flanges mostly adopts manual assembly methods, including manually placing the flange into the mold for positioning, or using semi-automatic crimping methods. This has drawbacks such as high requirements for the consistency of heating element dimensions, unstable dimensions after product assembly, difficult assembly, and low processing efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a crimping device for heating tubes and flanges.

[0004] To solve the above-mentioned technical problems, the solution adopted by the present invention is:

[0005] A crimping device for a heating tube and a flange is provided, comprising: a heating tube positioning mechanism for fixing and limiting the heating tube; a flange positioning mechanism for fixing and limiting the flange; the flange positioning mechanism cooperates with the heating tube positioning mechanism to position the flange and the end of the heating tube in a relative position; a pneumatic locking mechanism for driving the flange positioning mechanism to lock the flange and the heating tube; an upper mold frame, which cooperates with the flange positioning mechanism for crimping the flange and clamping the heating tube; and a lower mold frame for supporting the flange positioning mechanism, the pneumatic locking mechanism and the upper mold frame, and limiting the direction of movement of the upper mold frame.

[0006] As an improvement, the heating tube positioning mechanism includes a horizontal positioning plate and a vertical fixing block, with the fixing block mounted on the side of the positioning plate via its upper side; the positioning plate is provided with at least three sets of positioning holes, in which positioning pins protruding from the surface of the positioning plate are installed; the two positioning pins in each set maintain the same distance between them for clamping the heating tube.

[0007] As an improvement, the flange positioning mechanism includes a base, a front flange fixing plate, a rear flange fixing plate, a front base cover plate, a rear base fixing plate, a top base cover plate, and a size positioning block;

[0008] The upper surface of the base has a horizontal, continuous step. A front cover plate and a rear fixing plate are respectively installed on either side of this step. Parallel flange front and rear fixing plates are arranged on the front cover plate. The flange front fixing plate has multiple U-shaped grooves along its upper edge and multiple fixing holes at its bottom. Its front is a regular plane, and its rear has a step for supporting the flange bottom. The flange rear fixing plate has a polygonal groove along its upper edge that matches the flange hole flange on the flange. Its bottom has fixing holes that match the flange front fixing plate. The front and rear of the flange rear fixing plate are regular planes, and the flange crimping joint is installed within the polygonal groove.

[0009] The base cover plate is mounted on the base rear fixing plate and the through step. The L-shaped size positioning block is installed on the upper surface of the base cover plate through the U-shaped waist groove on its bottom surface, and its vertical side is parallel to the flange rear fixing plate.

[0010] The heating tube positioning mechanism is mounted in front of the base via a fixing block.

[0011] As an improvement, the base has at least three through holes spaced apart in the middle of the through step, and the rear fixing plate of the base has corresponding spring positioning holes with the same number of through holes.

[0012] As an improvement, the pneumatic locking mechanism includes a cylinder fixing plate, a cylinder, a left cylinder connecting rod, a right cylinder telescopic rod, a linear spring, a clamping block, a pneumatic telescopic block, and a spring telescopic rod;

[0013] Two cylinders are respectively mounted on the base plate of the lower mold frame via cylinder fixing plates. The ends of the two cylinder shafts are respectively installed with the left cylinder connecting rod and the right cylinder telescopic rod. The other end of the left cylinder connecting rod is fixedly connected to the pneumatic telescopic block.

[0014] Both the clamping block and the pneumatic telescopic block are roughly rectangular and are arranged side by side in close contact. The left end of the clamping block is narrower than the right end and the right end has an outer radius (R-angle). The middle part has multiple horizontal through holes perpendicular to the cylinder axis. The left end of the pneumatic telescopic block is wider than the right end and the middle part has a U-shaped groove. The groove and the horizontal through holes in the clamping block are on the same axis. The right end has an inner radius (R-angle) that matches the outer radius (R-angle) of the clamping block.

[0015] The linear spring and the spring telescopic rod are assembled together, with at least 3 sets; one end of the spring telescopic rod is connected to the end of the linear spring, and the other end passes through the through hole of the clamping block, the U-shaped groove of the pneumatic telescopic block, and the through hole on the base in the flange positioning mechanism in sequence, and then connects to the front fixing plate and the rear fixing plate of the flange positioning mechanism; the other end of the linear spring is installed in the spring positioning hole of the rear fixing plate of the base in the flange positioning mechanism.

[0016] As an improvement, the spring telescopic rod is in the shape of a round bar, with a step in the middle part for limiting the installation of the linear spring.

[0017] As an improvement, the lower mold frame includes a base plate, a guide post fixing block, and guide posts;

[0018] The base plate has U-shaped grooves on its left and right sides for external fixing of the entire device; the flange positioning mechanism is installed in the middle of the base plate via a base; vertical guide posts are provided on the left and right sides of the base plate for connecting with the upper mold frame.

[0019] As an improvement, the base plate is equipped with guide post fixing blocks on both sides, with a through hole in the middle; the guide post is cylindrical, and its end is installed in the through hole of the guide post fixing block; the pneumatic locking mechanism is fixedly connected to the side of the guide post fixing block through a cylinder fixing plate.

[0020] As an improvement, the upper mold frame includes a top plate, a guide sleeve, an L-shaped slide, a T-shaped slide, a flange upper fixing plate, and a mold handle;

[0021] A vertical mold handle is set in the center of the upper surface of the top plate, and through holes are provided on the left and right sides of the top plate respectively. A sleeve-shaped guide sleeve is installed in the through hole, and the inner diameter of the guide sleeve is clearance-fitted with the outer diameter of the guide post in the lower mold frame. The T-shaped slide is clamped and fixed to the bottom of the top plate by L-shaped slide grooves on both sides. A vertical flange upper fixing plate is fixedly installed on the raised step on its lower surface. The bottom edge of the flange upper fixing plate is provided with a U-shaped groove, which is used to cooperate with the flange pressing boss surface in the flange positioning mechanism to realize the flange pressing.

[0022] As an improvement, the mold shank is T-shaped for connecting to an external drive device; its top diameter is smaller than its bottom diameter, and the bottom is fixed to the top plate by a screw.

[0023] Compared with the prior art, the technical effects of the present invention are:

[0024] 1. The crimping device of the present invention can realize the rapid installation and positioning of heating tubes and flanges, making workpiece operation simpler and more practical.

[0025] 2. This invention ensures the stability of the final product's crimped dimensions, improving the flexibility and speed of product assembly. While maintaining product quality, it achieves rapid production, significantly increasing production efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the heating tube positioning mechanism.

[0028] Figure 3 This is a schematic diagram of the flange positioning mechanism.

[0029] Figure 4 This is a schematic diagram of the pneumatic locking mechanism.

[0030] Figure 5 This is a structural diagram of the lower mold frame mechanism.

[0031] Figure 6 This is a structural diagram of the upper mold frame mechanism.

[0032] Figure 7 This is a schematic diagram of the heating element before assembly.

[0033] Figure 8 This is a schematic diagram of the flange structure before assembly.

[0034] Figure 9 This is a schematic diagram showing the heating element and flange placed in a crimping device.

[0035] Figure 10 This is a schematic diagram of the flange front fixing plate structure.

[0036] Figure 11 This is a schematic diagram of the flange rear fixing plate structure.

[0037] Figure 12 This is a schematic diagram of the clamping block structure.

[0038] Figure 13 This is a schematic diagram of the pneumatic telescopic block structure.

[0039] Figure 14 This is a schematic diagram of a spring telescopic rod structure.

[0040] The attached diagram is labeled as follows: 1. Heating tube positioning mechanism; 2. Flange positioning mechanism; 3. Pneumatic locking mechanism; 4. Lower mold frame; 5. Upper mold frame; 1-1. Positioning plate; 1-2. Positioning pin; 1-3. Fixing block; 2-1. Base; 2-2. Flange front fixing plate; 2-3. Flange rear fixing plate; 2-4. Base front cover plate; 2-5. Base rear fixing plate; 2-6. Base upper cover plate; 2-7. Dimension positioning block; 3-1. Cylinder fixing plate; 3-2. Cylinder; 3-3. Left cylinder connecting rod; 3-4. Right cylinder telescopic rod; 3-5. Linear spring; 3-6. Clamping block; 3-7. Pneumatic telescopic block; 3-8. Telescopic rod; 4-1. Base plate; 4-2. Guide post fixing block; 4-3. Guide post; 5-1. Top plate; 5-2. Guide sleeve; 5-3. L-shaped slide groove; 5-4. T-shaped slide table; 5-5. Flange upper fixing plate; 5-6. Mold handle; 6. Heating tube; 7. Flange. Detailed Implementation

[0041] The serial numbers assigned to components in this application, such as "first" and "second," are merely for distinguishing the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0044] like Figure 1 As shown, the heating tube and flange crimping device of the present invention includes: a heating tube positioning mechanism 1 for fixing and limiting the heating tube 6; a flange positioning mechanism 2 for fixing and limiting the flange 7; the flange positioning mechanism 2 cooperates with the heating tube positioning mechanism 1 to make the flange 7 and the end of the heating tube 6 in a relative position; a pneumatic locking mechanism 3 for driving the flange positioning mechanism 2 to lock the flange 7 and the connecting heating tube 6; an upper mold frame 5, which cooperates with the flange positioning mechanism for crimping the flange 7 and clamping the heating tube 6; and a lower mold frame 4 for supporting the flange positioning mechanism 2, the pneumatic locking mechanism 2 and the upper mold frame 5, and limiting the movement direction of the upper mold frame 5.

[0045] like Figure 2 As shown, the heating tube positioning mechanism 1 includes a horizontal positioning plate 1-1 and a vertical fixing block 1-3. The fixing block 1-3 is installed on the side of the positioning plate 1-1 through its upper side. The positioning plate 1-1 is provided with at least three sets of positioning holes, and positioning pins 1-2 protruding from the surface of the positioning plate are installed in the positioning holes. The two positioning pins 1-2 in each set maintain the same distance and are used to clamp the heating tube 6.

[0046] like Figure 3 As shown, the flange positioning mechanism 2 includes a base 2-1, a flange front fixing plate 2-2, a flange rear fixing plate 2-3, a base front cover plate 2-4, a base rear fixing plate 2-5, a base upper cover plate 2-6, and a size positioning block 2-7.

[0047] The upper surface of the base 2-1 has a transverse through step. A front cover plate 2-4 and a rear fixing plate 2-5 are respectively installed on both sides of the through step. A front flange fixing plate 2-2 and a rear flange fixing plate 2-3 are arranged parallel to each other on the front cover plate 2-4. For example... Figure 10 As shown, the upper edge of the flange front fixing plate 2-2 has multiple U-shaped grooves, the bottom has multiple fixing holes, the front is a regular plane, and the rear has a step for supporting the bottom of the flange 7. Figure 11As shown, the upper edge of the flange rear fixing plate 2-3 is provided with a polygonal groove that matches the flange hole flange on the flange 7, and the bottom is provided with a fixing hole that matches the flange front fixing plate 2-2; the front and rear sides of the flange rear fixing plate 2-3 are regular planes, and the pressing part of the flange 7 is installed in the polygonal groove. The base cover plate 2-6 is mounted on the base rear fixing plate 2-5 and the through step. The L-shaped size positioning block 2-7 is installed on the upper surface of the base cover plate 2-6 through the U-shaped waist groove on its bottom surface, and its vertical side is parallel to the flange rear fixing plate 2-3; the heating tube positioning mechanism 1 is installed in front of the base 2-1 through the fixing block 1-3. The through step of the base 2-1 is provided with multiple through holes spaced apart in the middle, and the base rear fixing plate 2-3 is provided with spring positioning holes corresponding to the number of through holes.

[0048] like Figure 4 As shown, the pneumatic locking mechanism 3 includes a cylinder fixing plate 3-1, a cylinder 3-2, a left cylinder connecting rod 3-3, a right cylinder telescopic rod 3-4, a linear spring 3-5, a clamping block 3-6, a pneumatic telescopic block 3-4, and a spring telescopic rod 3-8.

[0049] Two cylinders 3-2 are respectively mounted on the base plate 4-1 of the lower mold frame 4 via cylinder fixing plate 3-1. The ends of the two cylinder shafts are respectively mounted with the left cylinder connecting rod 3-3 and the right cylinder telescopic rod 3-4. The other end of the left cylinder connecting rod 3-3 is fixedly connected to the pneumatic telescopic block 3-7.

[0050] like Figure 12 , 13 As shown, both clamping block 3-6 and pneumatic telescopic block 3-7 are roughly rectangular parallelepipeds, and are arranged side by side in close proximity. The left end of clamping block 3-6 is narrower than the right end and the right end has an outer radius (R-angle). The middle part has multiple horizontal through holes perpendicular to the axis of cylinder 3-2. The left end of pneumatic telescopic block 3-7 is wider than the right end and the middle part has a U-shaped groove. The groove and the horizontal through holes in clamping block 3-6 are on the same axis. The right end has an inner radius (R-angle) that matches the outer radius (R-angle) of clamping block 3-6.

[0051] Linear spring 3-5 is assembled with spring telescopic rod 3-8, with at least three sets. One end of spring telescopic rod 3-8 is connected to the end of linear spring 3-5, and the other end passes sequentially through the through hole of clamping block 3-6, the U-shaped groove of pneumatic telescopic block 3-7, and the through hole of the step on the base 2-1 in flange positioning mechanism 2, before connecting to the front flange fixing plate 2-2 and the rear flange fixing plate 2-3 in flange positioning mechanism 2. The other end of linear spring 3-5 is installed in the spring positioning hole of the rear fixing plate 2-3 in flange positioning mechanism 2. Spring telescopic rod 3-8 is in the shape of a round rod, with a step in the middle for limiting the installation of linear spring 3-5 (e.g., ...). Figure 14 (As shown).

[0052] like Figure 5As shown, the lower mold frame includes a base plate 4-1, guide post fixing blocks 4-2, and guide posts 4-3. The base plate 4-1 has U-shaped grooves on its left and right sides for external fixing of the entire device. The flange positioning mechanism 2 is installed in the middle of the base plate 4-1 via a base 2-1. Vertical guide posts 4-3 are provided on the left and right sides of the base plate 4-1 for connecting with the upper mold frame 4. Guide post fixing blocks 4-2 are installed on both sides of the base plate, with through holes in the middle. The guide posts 4-3 are cylindrical, with their ends installed in the through holes of the guide post fixing blocks 4-2. The pneumatic locking mechanism 3 is fixedly connected to the side of the guide post fixing blocks 4-2 via a cylinder fixing plate 3-1.

[0053] like Figure 6 As shown, the upper mold frame 5 includes a top plate 5-1, a guide sleeve 5-2, an L-shaped slide groove 5-3, a T-shaped slide table 5-4, a flange upper fixing plate 5-5, and a mold handle 5-6. A vertical mold handle 5-6 is provided in the center of the upper surface of the top plate 5-1, and through holes are provided on the left and right sides of the top plate 5-1 respectively. A sleeve-shaped guide sleeve 5-2 is installed in the through hole. The inner diameter of the guide sleeve 5-2 is clearance-fitted with the outer diameter of the guide post 4-3 in the lower mold frame 4, and the two can slide relative to each other. The T-shaped slide table 5-4 is clamped and fixed to the bottom of the top plate 5-1 by the L-shaped slide grooves 5-3 provided on both sides. A vertical flange upper fixing plate 5-5 is fixedly installed on the raised step on its lower surface. The bottom edge of the flange upper fixing plate 5-5 is provided with a U-shaped groove, which is used to cooperate with the flange pressing boss surface in the flange positioning mechanism 2 to realize the flange pressing. The mold handle 5-6 is T-shaped and is used to connect to an external drive device; its top diameter is smaller than its bottom diameter, and its bottom is fixed to the surface of the top plate 5-1 by a screw.

[0054] A more detailed description is as follows:

[0055] In the heating tube positioning mechanism 1, the positioning plate 1-1 is a cuboid made of metal material. The upper surface of the positioning plate 1-1 is provided with multiple sets of positioning holes, including cylindrical positioning pins 1-2. The fixing block 1-3 is a cuboid made of metal material. It has countersunk holes at the top for connecting to the positioning plate 1-1 with screws, and a U-shaped groove at the bottom for connecting to the front of the base 2-1 of the flange positioning mechanism 2.

[0056] In the flange positioning mechanism 2, the base 2-1 is a rectangular steel plate with four countersunk holes on its top for connection between the base 2-1 and the lower mold frame 4. A rectangular protrusion is located on the front and rear left and right sides of the base 2-1. The front protrusion has multiple through holes for mounting the spring telescopic rod 3-8 of the pneumatic locking mechanism 3, and each of the left and right protrusions has two threaded holes for mounting the rear fixing plate 2-5. The front fixing plate 2-2 is rectangular with multiple through holes at the bottom for fixing the screw. A U-shaped groove is located on the upper side of the front fixing plate 2-2 for mounting the heating tube. The front is a regular plane, and the rear has a step for supporting the bottom of the flange 7. The rear fixing plate 2-3 is installed behind the front fixing plate 2-2. It is rectangular with multiple through holes at the bottom for fixing the screw. The front and rear of the rear fixing plate 2-3 are regular planes with multiple polygonal grooves on its top. The pressing part of the flange 7 is installed within these polygonal grooves. The front cover plate 2-4 of the base is a piece of mold steel that has undergone heat treatment and has high strength and hardness. It is installed below the front fixing plate 2-2 and the rear fixing plate 2-3 of the flange and serves as a support. The rear fixing plate 2-5 of the base is rectangular and has four through holes in the middle and two countersunk holes on each side. The rear fixing plate 2-5 of the base is fixed to the protrusions on the left and right sides of the base 2-1 through the countersunk holes on both sides. The upper cover plate 2-6 of the base is rectangular and has two threaded holes in the middle and one countersunk hole on each side. The upper cover plate 2-6 of the base is fixed to the base 2-1 through the countersunk holes. The size positioning block 2-7 is L-shaped and has a symmetrical U-shaped groove in the middle. The size positioning block 2-7 is movably installed on the upper cover plate of the base through the U-shaped groove.

[0057] In the pneumatic locking mechanism 3, the cylinder fixing plate 3-1 is rectangular, and there are two pieces, located on both sides respectively; the cylinder fixing plate 3-1 has a through hole in the middle and threaded holes around the perimeter; there are two cylinders 3-2, which are respectively installed in the threaded holes on the cylinder fixing plate 3-1, and the cylinder shaft is installed in the through hole in the middle of the cylinder fixing plate 3-1; the left cylinder connecting rod 3-3 is a round bar with an internal thread on the left end, installed on the left cylinder shaft, and an external thread on the right end, installed on the left end of the pneumatic telescopic block; the right cylinder telescopic rod 3-4 is a round bar with an internal thread on the right end, installed on the right cylinder shaft; the clamping block 3-6 is a rectangular workpiece machined from square steel, and the left end of the clamping block 3-6 is offset. The clamping block 3-6 is narrow, larger on the right end, and has a large outer radius. It has four through holes in the middle part. The pneumatic telescopic block 3-7 is a rectangular workpiece made of square steel. It has a threaded hole on the left end to connect with the external thread at the end of the left cylinder connecting rod 3-3. It has an inner radius on the right end, which matches the outer radius of the clamping block 3-6. The pneumatic telescopic block 3-7 has a U-shaped groove in the middle. There are four linear springs 3-5. There are four spring telescopic rods 3-8, which are made of round bars. One end has a threaded hole for connecting the front fixing plate 2-2 and the rear fixing plate 2-3 of the flange. The other end is a cylinder for installing the linear spring 3-5. There is a step in the middle for limiting the linear spring 3-5. The installation method is to install the linear spring 3-5 at one end of the spring telescopic rod 3-8 and install it in the spring positioning hole of the base rear fixing plate 2-5 in the flange positioning mechanism 2. The other end of the spring telescopic rod 3-8 passes through the through hole in the middle part of the clamping block 3-6, the U-shaped groove in the middle part of the pneumatic telescopic block 3-7, and the through hole on the base through step in the flange positioning mechanism 2 in sequence, and then connects to the flange front fixing plate 2-2 and the flange rear fixing plate 2-3 through the threaded hole.

[0058] In the lower mold frame 4, the base plate 4-1 is a rectangular steel plate with a threaded hole in the middle for mounting the base 2-1 in the flange positioning mechanism 2. It has U-shaped grooves and threaded holes on its left and right sides respectively. The U-shaped grooves are used for external fixing of the entire pressing device, and the threaded holes are used for fixing the guide post fixing blocks 4-2. There are two guide post fixing blocks 4-2, installed on the left and right sides of the base plate 4-1 respectively. They are rectangular steel plates with countersunk holes around the perimeter, a through hole in the middle, and threaded holes on the sides. They are fixed to the base plate 4-1 through the countersunk holes. The cylinder fixing plate 3-1 in the pneumatic locking mechanism 3 is connected to the guide post fixing blocks 4-2 through the threaded holes on the side. There are two guide posts 4-3, with their ends installed in the middle through holes of the guide post fixing blocks 4-2 respectively. They are cylindrical in shape.

[0059] In the upper mold frame 5, the top plate 5-1 is a rectangular steel plate with threaded holes in the middle and on both sides, and through holes on both sides; the guide sleeve 5-2 is sleeve-shaped, and there are two of them, which are installed in the through holes on the left and right sides of the bottom plate 5-1 respectively; there are two L-shaped slides 5-3, which are symmetrically installed on the threaded holes on the left and right sides of the bottom plate 5-1; the T-shaped slide table 5-4 is machined from a single steel plate, and is installed in the middle of the L-shaped slide table 5-3 and clamped and fixed thereby; the flange upper fixing plate 5-5 is rectangular. It is arranged vertically, with four through holes at the top, which are fixedly connected to the T-shaped slide table 5-4 by screws. The lower side has a U-shaped groove for pressing with the flange pressing boss surface. The flange upper fixing plate 5-5 and the flange rear fixing plate 2-3 in the flange positioning mechanism 2 are arranged vertically and cooperate with each other. The mold handle 5-6 is made of round bar, T-shaped, with a smaller top diameter for installation on external pressure equipment. The bottom diameter is larger and has evenly distributed countersunk holes, which are fixed to the top plate 5-1 by screws.

[0060] The working process of the device described in this invention is further explained below:

[0061] The flange 7 is manually installed between the front flange fixing plate 2-2 and the rear flange fixing plate 2-3 in the flange positioning mechanism 2. One or more sets of heating tubes 6 are manually inserted through the U-shaped groove above the front flange fixing plate 2-2 and the polygonal groove between the flange 7 and the rear flange fixing plate 2-3 in the flange positioning mechanism 2. The tube body of the heating tube 6 is installed in the positioning pin 1-2 on the positioning plate 1-1 in the heating tube positioning mechanism 1. The pneumatic switch is manually activated, and the cylinder 3-2 in the pneumatic locking mechanism 3 is inflated. The left cylinder drives the left cylinder connecting rod 3-3 to push the pneumatic telescopic block 3-7 forward. Because the left end of the pneumatic telescopic block 3-7 is wider than the right end and its R-angle matches the inner and outer angles of the clamping block 3-6, the positioning hole of the clamping block 3-6 is pushed backward along the spring telescopic rod 3-8 during movement. The spring telescopic rod 3-8 has a step in the middle position that fits against the clamping block 3-6, thus causing the spring telescopic rod 3-8 to move backward. Since the front flange fixing plate 2-2 and the rear flange fixing plate 2-3 in the flange positioning mechanism 2 are fixed to the other end of the telescopic rod, when the spring telescopic rod 3-8 moves backward a certain distance, it clamps the front flange fixing plate 2-2, the flange, and the rear flange fixing plate 2-3 in the flange positioning mechanism 2. When the spring telescopic rod 3-8 moves backward, the spring 3-5 installed on the rear section of the spring telescopic rod 3-8 also retracts and presses. At the same time, the right cylinder drives the right cylinder 3-4 telescopic rod to retract; the two-hand start switch is activated, the equipment is pressed down, and the mold handle 5-6 in the upper mold frame 5 drives the top plate 5-1, guide sleeve 5-2, L-shaped slide 5-3, T-shaped slide 5-4, and flange upper fixing plate 5-5 to press down along the guide post 4-3 of the lower mold frame 4, pressing the flange upper fixing plate 5-5 of the upper mold frame 5 with the flange rear fixing plate 2-3 in the flange positioning mechanism 2, so that the flange installed in the flange positioning mechanism 2 is hexagonal and clamped with the heating pipe. After the flange and heating tube are clamped, the equipment drives the upper mold frame 5 to rise automatically. The pneumatic switch is manually activated, and the cylinder 3-2 in the pneumatic locking mechanism 3 is inflated. The left cylinder drives the left cylinder connecting rod 3-3 to pull the pneumatic telescopic block 3-7 backward. The right cylinder drives the right cylinder telescopic rod 3-4 to push forward, resetting the pneumatic telescopic block 3-7. During the movement, the clamping block 3-6 releases the flange front fixing plate 2-2 and flange rear fixing plate 2-3 in the flange positioning mechanism 2 along the spring telescopic rod 3-8 under the action of the spring 3-5, thereby releasing the product. The product is then manually removed from the positioning pin 1-2 on the positioning plate 1-1 in the heating tube positioning mechanism 1.

[0062] Finally, it should be noted that the above examples are merely specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this invention should be considered within the scope of protection of this invention.

Claims

1. A crimping device for a heating tube and a flange, characterized in that, include: Heating element positioning mechanism, used to fix and limit the position of the heating element; A flange positioning mechanism is used to fix and limit the flange. The flange positioning mechanism cooperates with a heating pipe positioning mechanism to position the flange and the end of the heating pipe in relative positions. The flange positioning mechanism includes a base, a front flange fixing plate, a rear flange fixing plate, a front base cover plate, a rear base fixing plate, a top base cover plate, and dimensional positioning blocks. The upper surface of the base has a transverse through step, with the front base cover plate and the rear base fixing plate respectively located on both sides of the through step. Parallel front and rear flange fixing plates are arranged on the front base cover plate. The upper edge of the front flange fixing plate has multiple U-shaped grooves, and the bottom has multiple fixing blocks. The flange has a regular flat front and a step at the back for support at the bottom. The upper edge of the flange rear fixing plate has a polygonal groove that matches the flange hole flange on the flange, and the bottom has a fixing hole that matches the flange front fixing plate. The front and back of the flange rear fixing plate are regular flat, and the flange crimping part is installed in the polygonal groove. The base cover plate is mounted on the base rear fixing plate and the through step. The L-shaped dimensional positioning block is installed on the upper surface of the base cover plate through the U-shaped waist groove on its bottom surface, and its vertical side is parallel to the flange rear fixing plate. The heating tube positioning mechanism is installed at the front of the base through the fixing block. A pneumatic locking mechanism is used to drive the flange positioning mechanism to lock the flange and the connecting heating pipe; The upper mold frame, in conjunction with the flange positioning mechanism, is used to press the flange and clamp the heating tube; The lower mold frame supports the flange positioning mechanism, the pneumatic locking mechanism, and the upper mold frame, and limits the direction of movement of the upper mold frame.

2. The crimping device according to claim 1, characterized in that, The heating tube positioning mechanism includes a horizontal positioning plate and a vertical fixing block. The fixing block is installed on the side of the positioning plate through its upper side. The positioning plate is provided with at least three sets of positioning holes, and positioning pins protruding from the surface of the positioning plate are installed in the positioning holes. The two positioning pins in each set maintain the same distance and are used to clamp the heating tube.

3. The crimping device according to claim 1, characterized in that, The base has at least three through holes spaced apart in the middle of the through step, and the rear fixing plate of the base has corresponding spring positioning holes with the same number of through holes.

4. The crimping device according to claim 1, characterized in that, The pneumatic locking mechanism includes a cylinder fixing plate, a cylinder, a left cylinder connecting rod, a right cylinder telescopic rod, a linear spring, a clamping block, a pneumatic telescopic block, and a spring telescopic rod. Two cylinders are respectively mounted on the base plate of the lower mold frame via cylinder fixing plates. The ends of the two cylinder shafts are respectively installed with the left cylinder connecting rod and the right cylinder telescopic rod. The other end of the left cylinder connecting rod is fixedly connected to the pneumatic telescopic block. Both the clamping block and the pneumatic telescopic block are cuboids and are arranged side by side in close contact. The left end of the clamping block is narrower than the right end and the right end has an outer radius (R-angle). The middle part has multiple horizontal through holes perpendicular to the cylinder axis. The left end of the pneumatic telescopic block is wider than the right end and the middle part has a U-shaped groove. The groove and the horizontal through holes in the clamping block are on the same axis. The right end has an inner radius (R-angle) that matches the outer radius (R-angle) of the clamping block. The linear spring and the spring telescopic rod are assembled together, with at least 3 sets; one end of the spring telescopic rod is connected to the end of the linear spring, and the other end passes through the through hole of the clamping block, the U-shaped groove of the pneumatic telescopic block, and the through hole on the base in the flange positioning mechanism in sequence, and then connects to the front fixing plate and the rear fixing plate of the flange positioning mechanism; the other end of the linear spring is installed in the spring positioning hole of the rear fixing plate of the base in the flange positioning mechanism.

5. The crimping device according to claim 4, characterized in that, The spring telescopic rod is in the shape of a round bar, with a step in the middle part for limiting the installation of the linear spring.

6. The crimping device according to claim 1, characterized in that, The lower mold frame includes a base plate, a guide post fixing block, and guide posts; The base plate has U-shaped grooves on its left and right sides for external fixing of the entire device; the flange positioning mechanism is installed in the middle of the base plate via a base; vertical guide posts are provided on the left and right sides of the base plate for connecting with the upper mold frame.

7. The crimping device according to claim 6, characterized in that, The base plate is equipped with guide post fixing blocks on both sides, with a through hole in the middle; the guide post is cylindrical, and its end is installed in the through hole of the guide post fixing block; the pneumatic locking mechanism is fixedly connected to the side of the guide post fixing block through a cylinder fixing plate.

8. The crimping device according to claim 1, characterized in that, The upper mold frame includes a top plate, a guide sleeve, an L-shaped slide groove, a T-shaped slide table, a flange upper fixing plate, and a mold handle; A vertical mold handle is set in the center of the upper surface of the top plate, and through holes are provided on the left and right sides of the top plate respectively. A sleeve-shaped guide sleeve is installed in the through hole, and the inner diameter of the guide sleeve is clearance-fitted with the outer diameter of the guide post in the lower mold frame. The T-shaped slide is clamped and fixed to the bottom of the top plate by L-shaped slide grooves on both sides. A vertical flange upper fixing plate is fixedly installed on the raised step on its lower surface. The bottom edge of the flange upper fixing plate is provided with a U-shaped groove, which is used to cooperate with the flange pressing boss surface in the flange positioning mechanism to realize the flange pressing.

9. The crimping device according to claim 8, characterized in that, The mold handle is T-shaped and is used to connect to an external drive device; its top diameter is smaller than its bottom diameter, and the bottom is fixed to the top plate by a screw.

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