Pressing head device for pressing end plate into end opening of steel pipe and automatic steel pipe end plate pressing machine

Abstract

The invention provides a pressure head device for pressing an end plate into a steel pipe port and an automatic steel pipe end plate pressing machine, and belongs to the technical field of machine tools. The steel pipe end plate welding machine solves the problems that an existing steel pipe end plate welding machine cannot press an end plate into a port of a steel pipe for welding, and a press-in machine capable of automatically pressing the end plate into the port of the steel pipe does not exist. The pressing head device comprises a pressing head seat, a pressing rod, a backer and a positioning clamp assembly, the pressing rod and the backer are fixedly connected with the pressing head seat, the positioning clamp assembly is used for clamping and positioning an end plate located on the installation plane and comprises a positioning seat and two symmetrically-arranged chucks, the chucks are installed on the positioning seat in an opening and closing mode, and the two chucks are arranged on the positioning seat. The positioning seat is connected with the pressing head seat or the backer through a first sliding rail guide assembly, and the guide direction of the first sliding rail guide assembly is parallel to the axial direction of the pressing rod. The steel pipe end plate automatic press-in machine with the pressing head device is used for pressing the end plate into a steel pipe port, so that the machining efficiency is improved, and the connecting precision of the end plate and the steel pipe is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of machine tools, and relates to a press, in particular to a pressing head device for pressing an end plate into the port of a steel pipe, and an automatic steel pipe end plate pressing machine. Background Art

[0002] A steel pipe is a steel product with a hollow cross-section, and its length is much greater than its diameter or circumference. Steel pipes are widely used, such as in furniture and heating equipment. Taking the heat dissipation pipe in heating equipment as an example, first, the steel pipe needs to be cut to a set length, and then the port of the steel pipe is sealed with an end plate; the end plate and the steel pipe are not only fixed by welding, but also the sealing performance needs to be ensured to avoid water leakage.

[0003] In order to improve the production efficiency of the above heat dissipation pipes, the applicant has proposed a steel pipe end plate welding machine (application publication number CN113770527A), which enables the end plate and the steel pipe to be laser welded together by improving the clamping accuracy. The steel pipe end plate welding machine is only suitable for welding the end plate on the end face of the steel pipe. In other words, the above welding machine is not suitable for processing heat dissipation pipes with the end plate embedded in the port of the steel pipe. Embedding the end plate into the port of the steel pipe can not only improve the sealing qualification rate, but also improve the aesthetics. Therefore, those skilled in the art urgently hope to propose a pressing machine that can automatically press the end plate into the port of the steel pipe. Summary of the Invention

[0004] The present invention proposes a pressing head device for pressing an end plate into the port of a steel pipe. The technical problem to be solved by the present invention is how to improve the connection accuracy between the end plate and the steel pipe after the end plate is pressed into the port of the steel pipe by a pressing machine.

[0005] The present invention also proposes an automatic steel pipe end plate pressing machine, which aims to improve both the accuracy of pressing the end plate into the port of the steel pipe and the processing efficiency.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions: A pressing head device for pressing an end plate into the port of a steel pipe, characterized in that it includes a pressing head seat, a pressing rod, a backing plate, and a positioning clamp assembly. One end of the pressing rod is fixedly connected to the pressing head seat, and the other end is provided with an installation plane for carrying the end plate. A magnetic adsorption assembly or a vacuum adsorption assembly for adsorbing the end plate is installed on the installation plane of the pressing rod; the backing plate is fixedly connected to the pressing head seat, and one end of the backing plate close to the installation plane of the pressing rod is provided with an abutting plane for contacting and limiting the end face of the steel pipe; the positioning clamp assembly is used for clamping and positioning the end plate located on the installation plane. The positioning clamp assembly includes a positioning seat and two symmetrically arranged clamping heads. The clamping heads are movably installed on the positioning seat, and the positioning seat is connected to the pressing head seat or the backing plate through a first slide rail guiding assembly, and the guiding direction of the first slide rail guiding assembly is parallel to the axial direction of the pressing rod.

[0007] An automatic press-in machine for steel pipe end plates, comprising a frame, a group of steel pipe pre-positioning jigs for horizontally pre-positioning the position of the steel pipe, and two groups of end plate press-in devices for clamping and positioning the end plates; the steel pipe pre-positioning jig includes two jig positioning blocks, and each jig positioning block has a positioning groove on its top surface that fits the outer side surface of the steel pipe; the jig positioning blocks are fixedly connected to the frame; the two groups of end plate press-in devices are arranged oppositely along the axial direction of the steel pipe on both sides of the steel pipe pre-positioning jig; the end plate press-in device includes a driving component and the above-mentioned pressing head device, the pressing head seat of the pressing head device is slidably connected to the frame through a second slide rail guiding component, the driving component is installed on the frame, the driving component is connected to the pressing head seat of the pressing head device, and the driving component is used to drive the pressing head device to move along the guiding direction of the second slide rail guiding component; when the driving components in the two groups of end plate press-in devices both drive the correspondingly connected pressing head devices to move synchronously towards each other, two end plates can be simultaneously pressed into the two end ports of the steel pipe.

[0008] When processing workpieces with the automatic press-in machine for steel pipe end plates, the steel pipe is placed in the positioning groove; one end plate is clamped on each of the two groups of pressing head devices. Specifically, first, the operator manually or the manipulator automatically places the end plate on the installation plane of the pressing rod, and the end plate is held on the installation plane of the pressing rod by the magnetic force or negative pressure of the magnetic adsorption component or the vacuum adsorption component, and then the operator or the manipulator can release the end plate; then, the positioning clamp component is controlled, and the two chucks are used to clamp and position the end plate, significantly improving the position consistency of the end plate.

[0009] The driving component is controlled to drive, and the driving component drives the correspondingly connected pressing head devices to move synchronously towards each other. During this process, the positioning clamp component maintains the state of clamping the end plate, improving the clamping stability of the end plate, significantly reducing the possibility of displacement or dropping when the pressing head device moves, and improving the docking accuracy between the end plate and the steel pipe.

[0010] Preferably, during the press-in process, the positioning clamp component maintains the state of clamping the end plate. When the end face of the steel pipe contacts the chuck, as the press-in depth increases, the steel pipe pushes the positioning clamp component to slide along the linear guiding structure, realizing the automatic retraction of the positioning clamp component; until the end face of the steel pipe contacts the abutting plane.

[0011] Compared with the prior art, the present pressing head device and the automatic press-in machine for steel pipe end plates have high position consistency of the end plate clamping, high docking accuracy between the end plate and the steel pipe, and the end plate is not easily displaced when pressed into the steel pipe, realizing the improvement of the connection accuracy between the end plate and the steel pipe. Furthermore, laser welding can still be used between the end plate and the steel pipe.

[0012] The automatic press-in machine for steel pipe end plates is horizontally arranged. The steel pipe only needs to be pre-positioned to improve the connection accuracy between the end plate and the steel pipe. At the same time, it improves the convenience of installing the steel pipe and removing the workpiece, thus improving the processing efficiency. The automatic press-in machine for steel pipe end plates not only realizes automatic processing through the operation of the driving component, but also completes the processing of both ends of the workpiece, having the advantage of high processing efficiency.

[0013] This press head device is suitable not only for the automatic press-in machine for steel pipe end plates with horizontal arrangement, but also for the automatic press-in machine for steel pipe end plates with vertical arrangement.

[0014] Preferably, a positioning plate is fixed on the backstop. A positioning hole is provided on the positioning plate, which is opposite to the installation plane of the pressure rod. The end of the steel pipe passes through the positioning hole and is used to position the end position of the steel pipe. By the positioning plate, the position consistency of the end of the steel pipe is further improved, the butt joint accuracy between the end plate and the steel pipe is high, and the accuracy of placing the steel pipe in the positioning groove is reduced, improving the convenience of installing the steel pipe and removing the workpiece.

[0015] Preferably, the positioning hole includes a positioning section adapted to the end of the steel pipe and a guiding section with an inclined side surface.

[0016] Preferably, the backstop and the press head seat are directly fixedly connected by bolts; or the backstop and the press head seat are connected by a first guiding structure having a guiding rod and a guiding hole, and the guiding direction of the first guiding structure is parallel to the axial direction of the pressure rod, and the backstop and the press head seat are also connected by a locking structure, and the locking structure can make the backstop and the press head seat in a fixedly connected state.

[0017] Preferably, the locking structure includes a first locking bolt and an adjusting slider. The adjusting slider and the press head seat are connected by a second guiding structure having a guiding groove, and the guiding direction of the second guiding structure is perpendicular to the axial direction of the pressure rod; the backstop and the adjusting slider are in a slope fit. The first locking bolt passes through the press head seat and the adjusting slider and is threadedly connected to the backstop, and the axial direction of the first locking bolt is parallel to the axial direction of the pressure rod; or the locking structure includes a first locking bolt threadedly connected to the press head seat, and the axial direction of the first locking bolt is perpendicular to the axial direction of the pressure rod. When the end face of the first locking bolt presses against the side surface of the backstop, the backstop and the press head seat are in a fixedly connected state.

[0018] Preferably, the locking structure further includes an adjusting bolt. The axial direction of the adjusting bolt is parallel to the guiding direction of the second guiding structure. The adjusting bolt is rotationally connected to the press head seat with axial positioning, and the adjusting bolt and the adjusting slider are in a threaded connection.

[0019] Preferably, the chuck is mounted on the positioning seat through a parallel jaw cylinder. The parallel jaw cylinder includes a cylinder body and two jaws that can move synchronously and towards each other. The cylinder body is fixedly connected to the positioning seat, and the two chucks are fixedly connected to the two jaws in a one-to-one correspondence; or the middle parts of the two chucks are swingably connected to the positioning seat through a rotating shaft, and the two chucks are also connected to each other through a spring.

[0020] Preferably, a return spring, two mutually repulsive permanent magnets or a cylinder is arranged between the positioning seat and the pressure head seat.

[0021] Preferably, the end plate pressing device further includes a base, a conveyor belt assembly for conveying end plates, and a manipulator assembly for automatically placing an end plate on the conveyor belt assembly onto the installation plane; the conveyor belt assembly includes a conveyor belt and two end plate clamping rods arranged above the conveyor belt, and the conveyor belt and the end plate clamping rods form a conveying groove for the end plates to be placed vertically; an elastic pressing piece is installed on the base above the head end of the conveying groove, and the elastic pressing piece is used to press the end plate located in the head end of the conveying groove onto the conveyor belt; a blocking rod is further arranged above the conveying groove, and the first end plate can lean on the blocking rod; an avoidance cylinder connected to the blocking rod is installed on the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective structural view of the pressure head device with an end plate positioned.

[0023] Figure 2 is a front structural view of the pressure head device with an end plate positioned.

[0024] Figure 3 is Figure 2 the sectional structural view taken along A-A in

[0025] Figure 4 is Figure 2 the sectional structural view taken along B-B in

[0026] Figure 5 is an exploded structural view of the pressure head device.

[0027] Figure 6 is a perspective structural view of the pressure head device with the positioning plate hidden.

[0028] Figure 7 is a perspective structural view of the state where the end part is pressed into the steel pipe by using the pressure head device.

[0029] Figure 8 is a perspective structural view of the steel pipe end plate automatic pressing machine.

[0030] Figure 9 is a perspective structural view of the end plate pressing device.

[0031] In the figure, 100 is the frame; 100a is the main frame body; 100b is the horizontal sliding table; 100c is the third slide rail guiding assembly; 200 is the steel pipe pre-positioning fixture; 200a is the fixture positioning block; 200b is the positioning groove; 300 is the end plate pressing device; 300a is the first pressing head device; 300b is the second pressing head device; 300c is the first driving assembly; 300d is the second driving assembly; 300e is the conveyor belt assembly; 300f is the manipulator assembly; 300g is the second slide rail guiding assembly; 400 is the steel pipe; 500 is the end plate; 1 is the pressing head seat; 2 is the pressing rod; 2a is the installation plane; 3 is the backstop; 3a is the abutting plane; 4 is the positioning clamp assembly; 4a is the positioning seat; 4b is the chuck; 4c is the parallel jaw cylinder; 5 is the positioning plate; 5a is the positioning hole; 6 is the vacuum adsorption assembly; 7 is the guiding rod; 8 is the first locking bolt; 9 is the adjusting slider; 10 is the adjusting bolt; 11 is the first slide rail guiding assembly; 12 is the return spring; 31 is the conveyor belt; 32 is the end plate clamping rod; 33 is the elastic pressing piece; 34 is the blocking rod; 35 is the avoidance cylinder. Detailed implementation manners

[0032] The following are specific embodiments of the present invention and, in conjunction with the accompanying drawings, further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0034] In the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0037] Example 1: As Figures 1 to 7 shown, a pressing head device for pressing an end plate 500 into the port of a steel pipe 400 includes a pressing head base 1, a pressing rod 2, a backrest 3, a positioning clip assembly 4 and a positioning plate 5.

[0038] The pressing head base 1 is a base member. One end of the pressing rod 2 is fixedly connected to the pressing head base 1, and the other end of the pressing rod 2 is provided with an installation plane 2a for carrying the end plate 500; the shape and size of the installation plane 2a match those of the end plate 500. A vacuum adsorption assembly 6 for adsorbing the end plate 500 is installed on the installation plane 2a of the pressing rod 2. The accompanying drawings of the specification show that the vacuum adsorption assembly 6 includes a suction head and an air passage connected to the suction head, and a vacuum generator connected to the air passage is not shown.

[0039] According to the actual situation, the vacuum adsorption assembly 6 can be replaced by a magnetic adsorption assembly, and the magnetic adsorption assembly includes an electromagnet or a permanent magnet.

[0040] The backrest 3 is fixedly connected to the pressing head base 1. One end of the backrest 3 close to the installation plane 2a of the pressing rod 2 is provided with an abutting plane 3a for contacting and limiting the end face of the steel pipe 400. The backrest 3 and the pressing head base 1 are connected by a first guiding structure having a guiding rod 7 and a guiding hole, and the guiding direction of the first guiding structure is parallel to the axial direction of the pressing rod 2, as Figure 3In the figure, X indicates the axial line of the pressure bar 2, and the backstop 3 and the pressure head seat 1 are also connected through a locking structure. That is, when the backstop 3 moves along the guiding direction of the first guiding structure, the distance between the abutting plane 3a and the mounting plane 2a is adjusted, and further the depth of the end plate 500 pressed into the port of the steel pipe 400 is adjusted; after the adjustment is in place, the locking structure can make the backstop 3 and the pressure head seat 1 in a fixed connection state. The accompanying drawings of the specification show that the locking structure includes a first locking bolt 8, an adjusting slider 9 and an adjusting bolt 10. The adjusting slider 9 and the pressure head seat 1 are connected through a second guiding structure with a guiding groove, and the guiding direction of the second guiding structure is perpendicular to the axial direction of the pressure bar 2; the backstop 3 and the adjusting slider 9 are in an inclined surface fit, the first locking bolt 8 passes through the pressure head seat 1 and the adjusting slider 9 and is threadedly connected with the backstop 3, and the axial direction of the first locking bolt 8 is parallel to the axial direction of the pressure bar 2; the axial direction of the adjusting bolt 10 is parallel to the guiding direction of the second guiding structure, the adjusting bolt 10 is rotationally connected with the pressure head seat 1 with axial positioning, and the adjusting bolt 10 and the adjusting slider 9 are in a threaded connection. Thus, when the first locking bolt 8 is in a loosened state, screwing the adjusting bolt 10 can adjust the axial position of the backstop 3 relative to the pressure bar 2 to realize the adjustment of the distance between the abutting plane 3a and the mounting plane 2a; after the adjustment is in place, tightening the first locking bolt 8 makes the backstop 3 and the pressure head seat 1 in a fixed connection state. This structure has the advantages of large load-bearing capacity, the backstop 3 is not easily displaced when the backstop 3 and the pressure head seat 1 are in a fixed connection state, and it is convenient to adjust the position of the backstop 3 and the adjustment accuracy is high.

[0041] According to the actual situation, the locking structure can also be replaced by the following scheme. For example, the locking structure includes a first locking bolt 8 threadedly connected with the pressure head seat 1, and the axial direction of the first locking bolt 8 is perpendicular to the axial direction of the pressure bar 2. When the end face of the first locking bolt 8 presses against the side face of the backstop 3, the backstop 3 and the pressure head seat 1 are in a fixed connection state. When the first locking bolt 8 is in a loosened state, the backstop 3 is in a state where its position can be adjusted.

[0042] The positioning clamp assembly 4 is used to clamp and position the end plate 500 located on the installation plane 2a. The positioning clamp assembly 4 includes a positioning seat 4a and two symmetrically arranged chucks 4b, and the chucks 4b are movably installed on the positioning seat 4a. The accompanying drawings of the specification show that the chucks 4b are installed on the positioning seat 4a through a parallel jaw cylinder 4c. The parallel jaw cylinder 4c includes a cylinder body and two jaws that can move synchronously and towards each other. The cylinder body is fixedly connected to the positioning seat 4a, and the two chucks 4b are fixedly connected to the two jaws in a one-to-one correspondence. When the two jaws are in the open state, the end plate 500 can be conveniently placed between the two chucks 4b. When the two jaws are switched from the open state to the closed state, the two jaws clamp and position the end plate 500, and the position of the end plate 500 is automatically corrected during this process. The positioning seat 4a is connected to the backing 3 through a first slide rail guiding assembly 11, and the guiding direction of the first slide rail guiding assembly 11 is parallel to the axial direction of the pressing rod 2; the accompanying drawings of the specification show that the number of the first slide rail guiding assemblies 11 is two groups. Therefore, the positioning clamp assembly 4 has the advantages of flexible movement and large load-bearing capacity, that is, when the chuck 4b is in contact with the steel pipe 400, the positioning clamp assembly 4 is not easy to drive the end plate 500 to shift.

[0043] According to the actual situation, the first slide rail guiding assembly 11 can also be installed on the pressure head seat 1, that is, the positioning seat 4a is connected to the pressure head seat 1 through the first slide rail guiding assembly 11.

[0044] A return spring 12 is arranged between the positioning seat 4a and the pressure head seat 1. When the steel pipe 400 pushes the positioning clamp assembly 4 to move, the return spring 12 is compressed, and when the steel pipe 400 is separated from the chuck 4b, the return spring 12 can make the positioning clamp assembly 4 move to the initial position.

[0045] A positioning plate 5 is fixed on the backing 3. A positioning hole 5a is opened on the positioning plate 5, which is opposite to the installation plane 2a of the pressing rod 2. The positioning hole 5a is for the end of the steel pipe 400 to pass through and is used to position the end position of the steel pipe 400. The positioning plate 5 not only improves the position consistency of the end of the steel pipe 400, but also provides a place for the chuck 4b to abut against to limit the return stroke of the positioning clamp assembly 4, thereby controlling the position where the chuck 4b contacts the end plate 500, ensuring that the end plate 500 fits with the port of the steel pipe 400 or partially embeds into it and then the end face of the steel pipe 400 contacts the chuck 4b. The positioning hole 5a includes a positioning section adapted to the end of the steel pipe 400 and a guiding section with an inclined side face. When the end of the steel pipe 400 is inserted into the positioning hole 5a, it is first guided by the inclined side face of the guiding section and then inserted into the positioning section. Therefore, the positioning plate 5 not only improves the position consistency of the end of the steel pipe 400, but also can reduce the accuracy requirements for the initial position of the steel pipe 400.

[0046] A steel pipe 400 end plate 500 automatic press-in machine includes a frame 100, a set of steel pipe pre-positioning clamps 200, and two sets of end plate press-in devices 300. The frame 100 includes a main frame body 100a and a horizontal sliding table 100b. The main frame body 100a can usually be placed on the ground. The horizontal sliding table 100b is connected to the main frame body 100a through a third slide rail guiding component 100c. There can also be a second locking bolt connecting the horizontal sliding table 100b and the main frame body 100a, that is, by screwing the second locking bolt, the horizontal sliding table 100b and the main frame body 100a are in a locked connection state or the horizontal sliding table 100b can move relative to the main frame body 100a along the guiding direction of the third slide rail guiding component 100c.

[0047] The steel pipe pre-positioning clamps 200 include two clamp positioning blocks 200a. Each clamp positioning block 200a has a positioning groove 200b on its top surface that fits the outer side surface of the steel pipe 400. The two clamp positioning blocks 200a are respectively called the first clamp positioning block 200a and the second clamp positioning block 200a. The first clamp positioning block 200a is fixedly connected to the main frame body 100a of the frame 100, and the second clamp positioning block 200a is fixedly connected to the horizontal sliding table 100b of the frame 100.

[0048] The two sets of end plate press-in devices 300 are arranged on both sides of the steel pipe pre-positioning clamps 200, that is, the two sets of end plate press-in devices 300 are respectively located outside the two ends of the steel pipe 400 pre-positioned on the steel pipe pre-positioning clamps 200. The end plate press-in device 300 includes the above-mentioned pressing head device and a driving component; the two sets of pressing head devices are respectively called the first pressing head device 300a and the second pressing head device 300b, and the two sets of driving components are respectively called the first driving component 300c and the second driving component 300d. The driving component includes a motor, a cylinder, or an oil cylinder. The pressing head seat 1 in the first pressing head device 300a is slidably connected to the main frame body 100a of the frame 100 through a second slide rail guiding component 300g. The cylinder block of the first driving component 300c is fixed on the main frame body 100a of the frame 100, and the cylinder piston rod of the first driving component 300c is connected to the pressing head seat 1 in the first pressing head device 300a. The pressing head seat 1 in the second pressing head device 300b is slidably connected to the horizontal sliding table 100b of the frame 100 through a second slide rail guiding component 300g. The cylinder block of the second driving component 300d is fixed on the horizontal sliding table 100b of the frame 100, and the cylinder piston rod of the second driving component 300d is connected to the pressing head seat 1 in the second pressing head device 300b.

[0049] The guiding directions of the second slide rail guiding assembly 300g and the third slide rail guiding assembly 100c are arranged in parallel. The first pressing head device 300a and the second pressing head device 300b are arranged opposite to each other. Thus, moving the horizontal slide table 100b can greatly adjust the distance between the first pressing head device 300a and the second pressing head device 300b, and adjust the distance between the first fixture positioning block 200a and the second fixture positioning block 200a, so that the steel pipe 400 end plate 500 automatic pressing machine is suitable for processing workpieces within a larger length range.

[0050] The end plate pressing device 300 further includes a base, a conveyor belt assembly 300e for conveying the end plate 500, and a manipulator assembly 300f for automatically placing an end plate 500 on the installation plane 2a from the conveyor belt assembly 300e. The conveyor belt assembly 300e includes a conveyor belt 31 and two end plate clamping rods 32 arranged above the conveyor belt 31. The conveyor belt 31 and the end plate clamping rods 32 form a conveying groove for the end plate 500 to be placed vertically. An elastic pressing piece 33 is installed on the base above the head end of the conveying groove. The elastic pressing piece 33 is used to press the end plate 500 located at the head end of the conveying groove onto the conveyor belt 31. This structure significantly reduces the possibility of the vertically placed end plate 500 tipping over automatically. The vertical placement of the end plate 500 not only increases the number of end plates 500 placed in the conveying groove per unit length, but also facilitates the manipulator assembly 300f to transfer the first end plate 500 to the installation plane 2a, realizing the simplification of the structure of the manipulator assembly 300f.

[0051] A blocking rod 34 is also arranged above the conveying groove. The blocking rod 34 is for the first end plate 500 to lean on. An avoidance cylinder 35 connected to the blocking rod 34 is installed on the base. The avoidance cylinder 35 and the manipulator assembly 300f cooperate to avoid the first end plate 500 from tipping over, ensuring the continuity and stability of the end plate 500 conveying.

[0052] The manipulator assembly 300f includes a vacuum suction attachment for adsorbing the end plate 500. The vacuum suction attachment is sequentially connected to the base through a plurality of conveying cylinders. The conveying cylinders can move the vacuum suction attachment horizontally back and forth, separating the first end plate 500 from other end plates 500 in the horizontal front-back direction first, avoiding the burrs of the end plates 500 from corresponding to each other, and placing the end plate 500 on the installation plane 2a along a direction perpendicular to the installation plane 2a, realizing the improvement of the continuity and stability of the end plate 500 conveying.

[0053] By elaborating on the process of using the steel pipe 400 end plate 500 automatic pressing machine to process the heat dissipation pipe, the functions and advantages of the steel pipe 400 end plate 500 automatic pressing machine and the pressing head device are further illustrated.

[0054] First step, install the steel pipe 400 and the end plate 500 without considering the order.

[0055] When installing the steel pipe 400, one end of the steel pipe 400 is placed in the positioning groove 200b of a fixture positioning block 200a, and the other end of the steel pipe 400 is placed in the positioning groove 200b of another fixture positioning block 200a. The steel pipe pre-positioning fixture 200 horizontally pre-positions the steel pipe 400, thus having the advantages of convenient pre-positioning of the steel pipe 400 and convenient removal of the workpiece.

[0056] When installing the end plate 500, first, multiple end plates 500 are stacked in sequence and placed vertically in the conveying groove. The conveyor belt 31 of the conveyor belt assembly 300e is controlled to move, so that the multiple end plates 500 move towards the head end direction of the conveying groove until the first end plate 500 contacts the blocking rod 34. At this time, the elastic pressing piece 33 presses at least the second end plate 500 on the conveyor belt 31.

[0057] Then, the manipulator assembly 300f is controlled to transfer the first end plate 500 to the installation plane 2a of the pressing head device and release the end plate 500, and the end plate 500 is held on the installation plane 2a of the pressing rod 2 by the magnetic force or negative pressure of the magnetic adsorption assembly or vacuum adsorption assembly 6 of the pressing head device.

[0058] Next, the parallel jaw cylinder 4c of the positioning clamp assembly 4 is controlled to act, and the two chucks 4b clamp and position the end plate 500 located on the installation plane 2a to improve the position consistency and stability of the end plate 500; and the manipulator assembly 300f is controlled to reset.

[0059] Immediately afterwards, the two groups of driving components drive the correspondingly connected pressing head devices to move synchronously towards each other, that is, the end plate 500 gradually approaches the port of the steel pipe 400; during this process, one end of the steel pipe 400 is inserted into the positioning hole 5a of the first pressing head device 300a, and the other end of the steel pipe 400 is inserted into the positioning hole 5a of the second pressing head device 300b; the position consistency of the end of the steel pipe 400 is improved and the butt joint accuracy between the end of the steel pipe 400 and the end plate 500 is improved. From the moment when the end face of the steel pipe 400 contacts the chuck 4b, the positioning clamp assembly 4 moves along the guiding direction of the first slide rail guiding assembly 11 relative to the backrest 3, and the end plate 500 gradually embeds into the port of the steel pipe 400 until the end face of the steel pipe 400 contacts the abutting plane 3a of the backrest 3, realizing the simultaneous pressing of the two end plates 500 into the two end ports of the steel pipe 400; during this process, the return spring 12 is gradually compressed.

[0060] Finally, the two groups of driving components are controlled to drive the correspondingly connected pressing head devices to move synchronously towards each other to achieve reset, and the positioning clamp assembly 4 automatically resets under the elastic force of the return spring 12.

[0061] Embodiment 2: The structure and principle of this embodiment are basically the same as those of Embodiment 1. The same parts will not be described redundantly. Only the different parts will be described. The difference is that the backing 3 and the pressure head seat 1 are not connected through the first guiding structure and the locking structure. Instead, the backing 3 and the pressure head seat 1 are directly fixedly connected by bolts. In this way, the distance between the abutting plane 3a and the mounting plane 2a is fixed and non-adjustable.

[0062] Embodiment 3: The structure and principle of this embodiment are basically the same as those of Embodiment 1. The same parts will not be described redundantly. Only the different parts will be described. The difference is that the structure in which the collets 4b are mounted on the positioning seat 4a can be replaced by the following solution. The middle parts of the two collets 4b are swingably connected to the positioning seat 4a through rotating shafts, and the two collets 4b are also connected by a spring. Thus, the end plate 500 can be forcibly inserted between the two collets 4b, and the position of the end plate 500 can be automatically corrected after release.

[0063] Embodiment 4: The structure and principle of this embodiment are basically the same as those of Embodiment 1. The same parts will not be described redundantly. Only the different parts will be described. The difference is that the return spring 12 can be replaced by two mutually repulsive permanent magnets or a cylinder; or when the pressure head device is applied to a vertical steel pipe 400 end plate 500 automatic pressing machine, there is no need to provide a return spring 12 between the positioning seat 4a and the pressure head seat 1, and the positioning clip assembly 4 is reset by its own gravity.

Claims

1. A pressing head device for pressing an end plate into a steel pipe port, characterized in that: The invention comprises a pressure head seat (1), a pressure rod (2), a backrest (3) and a positioning clamp assembly (4); one end of the pressure rod (2) is fixedly connected to the pressure head seat (1), and the other end is provided with a mounting plane (2a) for carrying an end plate (500); a magnetic adsorption assembly or a vacuum adsorption assembly (6) for adsorbing the end plate (500) is installed on the mounting plane (2a) of the pressure rod (2); the backrest (3) is fixedly connected to the pressure head seat (1), and an end of the backrest (3) close to the mounting plane (2a) of the pressure rod (2) is provided with a backing plane (3a) for abutting against the mounting plane (2a) of the pressure rod (2). The plane (3a) is used to contact and limit the end face of the steel pipe (400); the positioning clamp assembly (4) is used to clamp and position the end plate (500) located on the installation plane (2a); the positioning clamp assembly (4) comprises a positioning seat (4a) and two symmetrically arranged clamps (4b); the clamps (4b) can be installed on the positioning seat (4a) in an openable and closable manner; the positioning seat (4a) is connected to the pressure head seat (1) or the backrest (3) via a first slide rail guide assembly (11); the guiding direction of the first slide rail guide assembly (11) is parallel to the axial direction of the pressure rod (2).

2. The pressing head device for pressing an end plate into a steel pipe port according to claim 1, characterized in that: A positioning plate (5) is fixed on the backrest (3), and a positioning hole (5a) is provided on the positioning plate (5) and is directly opposite to the installation plane (2a) of the pressure rod (2). The positioning hole (5a) is for the end of the steel pipe (400) to pass through and is used to locate the end position of the steel pipe (400).

3. The pressing head device for pressing the end plate into the end of the steel pipe according to claim 2, characterized in that: The positioning hole (5a) comprises a positioning section adapted to the end of the steel pipe (400) and a guide section having an inclined side surface.

4. The pressing head device for pressing an end plate into a steel pipe port according to claim 1, 2 or 3, characterized in that: The backrest (3) and the pressure head seat (1) are directly connected by bolts; Or the backrest (3) and the pressure head seat (1) are connected via a first guide structure having a guide rod (7) and a guide hole, the guide direction of the first guide structure is parallel to the axial direction of the pressure rod (2), and the backrest (3) and the pressure head seat (1) are also connected via a locking structure, and the locking structure can keep the backrest (3) and the pressure head seat (1) in a fixed connection state.

5. The pressing head device for pressing the end plate into the end of the steel pipe according to claim 4, characterized in that: The locking structure comprises a first locking bolt (8) and an adjusting slider (9); the adjusting slider (9) is connected to the pressure head seat (1) via a second guide structure having a guide groove, and the guiding direction of the second guide structure is perpendicular to the axial direction of the pressure rod (2); the backrest (3) and the adjusting slider (9) are matched with an inclined surface, the first locking bolt (8) passes through the pressure head seat (1) and the adjusting slider (9) and is threadedly connected to the backrest (3), and the axial direction of the first locking bolt (8) is parallel to the axial direction of the pressure rod (2); Or the locking structure comprises a first locking bolt (8) threadedly connected to the pressure head seat (1), the axial direction of the first locking bolt (8) is perpendicular to the axial direction of the pressure rod (2), and when the end face of the first locking bolt (8) presses against the side face of the backrest (3), the backrest (3) and the pressure head seat (1) are in a fixed connection state.

6. The pressing head device for pressing the end plate into the end of the steel pipe according to claim 5, characterized in that: The locking structure further comprises an adjusting bolt (10), the axial direction of the adjusting bolt (10) being parallel to the guiding direction of the second guiding structure, the adjusting bolt (10) being rotatably connected to the pressure head seat (1) for axial positioning, and the adjusting bolt (10) being threadedly connected to the adjusting slider (9).

7. The pressing head device for pressing an end plate into a steel pipe port according to claim 1, 2 or 3, characterized in that: The chuck (4b) is mounted on the positioning seat (4a) via a parallel clamping jaw cylinder (4c); the parallel clamping jaw cylinder (4c) comprises a cylinder body and two clamping fingers that can move synchronously and towards each other; the cylinder body is fixedly connected to the positioning seat (4a); and the two chucks (4b) are fixedly connected to the two clamping fingers in a one-to-one correspondence; Or the middle parts of the two clamps (4b) are swingably connected to the positioning seat (4a) via a rotating shaft, and the two clamps (4b) are also connected via a spring.

8. The pressing head device for pressing an end plate into a steel pipe port according to claim 1, 2 or 3, characterized in that: A return spring (12) and two permanent magnets or cylinders arranged to repel each other are arranged between the positioning seat (4a) and the pressure head seat (1).

9. An automatic steel pipe end plate pressing machine, comprising a frame (100), a set of steel pipe pre-positioning fixtures (200) for horizontally pre-positioning steel pipes (400), and two sets of end plate pressing devices (300) for clamping and positioning end plates (500); characterized in that: The steel pipe pre-positioning fixture (200) comprises two fixture positioning blocks (200a), and each fixture positioning block (200a) has a positioning groove (200b) on the top surface thereof adapted to the outer side surface of the steel pipe (400); the fixture positioning block (200a) is fixedly connected to the frame (100); two sets of end plate pressing devices (300) are arranged on both sides of the steel pipe pre-positioning fixture (200) along the axial direction of the steel pipe (400); the end plate pressing device (300) comprises a driving component and a pressing head device as described in any one of claims 1 to 8, The pressing head seat (1) of the pressing head device is slidably connected to the frame (100) via a second slide rail guide assembly (300g); a driving assembly is mounted on the frame (100); the driving assembly is connected to the pressing head seat (1) of the pressing head device; the driving assembly is used to drive the pressing head device to move along the guide direction of the second slide rail guide assembly (300g); when the driving assemblies in the two sets of end plate pressing devices (300) drive the correspondingly connected pressing head devices to move synchronously towards each other, the two end plates (500) can be pressed into the two end ports of the steel pipe (400) at the same time.

10. The automatic steel pipe end plate pressing machine according to claim 9, characterized in that: The end plate pressing device (300) further comprises a base, a conveyor belt assembly (300e) for conveying the end plate (500), and a manipulator assembly (300f) for automatically placing an end plate (500) on the conveyor belt assembly (300e) on the mounting plane (2a); the conveyor belt assembly (300e) comprises a conveyor belt (31) and two end plate clamping rods (32) arranged above the conveyor belt (31), the conveyor belt (31) and the end plate clamping rods (32) forming a conveyor trough for the end plate (500) to be placed vertically; an elastic pressing sheet (33) located above the head end of the conveyor trough is installed on the base, the elastic pressing sheet (33) is used to press the end plate (500) located in the head end of the conveyor trough onto the conveyor belt (31); a blocking rod (34) is also arranged above the conveyor trough, the blocking rod (34) is for the first end plate (500) to lean on; and an avoidance cylinder (35) connected to the blocking rod (34) is installed on the base.

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