Pressing head device for pressing end plate into end opening of steel pipe and automatic steel pipe end plate pressing machine
By designing a pressure head device and an automatic steel pipe end plate pressing machine, the end plate is fixed using vacuum or magnetic adsorption components, and then precisely pressed into the steel pipe port by a drive component. This solves the problems of connection accuracy and sealing between the end plate and the steel pipe, and improves processing efficiency and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU SUNSIA DIAMOND EQUIP CO LTD
- Filing Date
- 2025-05-03
- Publication Date
- 2026-05-12
AI Technical Summary
Existing technologies make it difficult to efficiently press the end plate into the steel pipe end, and it is also difficult to guarantee the connection accuracy and sealing between the end plate and the steel pipe.
A pressure head device is designed, comprising a pressure head seat, a pressure rod, a backing, and a positioning clamp assembly. Combined with a steel pipe pre-positioning clamp and an end plate pressing device, the end plate is fixed by a vacuum or magnetic adsorption assembly, and the pressure head device is driven by a drive assembly to precisely press the end plate into the steel pipe port, thereby improving positional consistency and docking accuracy.
It achieves high-precision connection between the end plate and the steel pipe, improves processing efficiency and sealing performance, reduces the possibility of displacement of the end plate during the pressing process, and is suitable for automatic steel pipe end plate pressing machines with horizontal and vertical layouts.
Smart Images
Figure CN224223159U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of machine tool technology, and relates to a press, particularly a press head device for pressing end plates into the ends of steel pipes, and an automatic press-in machine for steel pipe end plates. Background Technology
[0002] Steel pipes are hollow steel materials whose length is much greater than their diameter or circumference. Steel pipes have a wide range of applications, such as in furniture and heating equipment. Taking the radiator pipe in heating equipment as an example, the steel pipe is first cut to a predetermined length, and then end plates are used to seal the ends of the pipe. The end plates are not only welded to the steel pipe, but also need to ensure a tight seal to prevent water leakage.
[0003] To improve the production efficiency of the aforementioned heat dissipation pipes, the applicant previously proposed a steel pipe end plate welding machine (application publication number CN113770527A). This machine, by improving clamping accuracy, makes the end plate and steel pipe suitable for laser welding. However, this steel pipe end plate welding machine is only suitable for welding the end plate to the end face of the steel pipe; in other words, it is not suitable for processing heat dissipation pipes with end plates embedded in the steel pipe port. Embedding the end plate in the steel pipe port not only improves the sealing qualification rate but also enhances aesthetics. Therefore, those skilled in the art urgently desire a press-in machine that can automatically press the end plate into the steel pipe port. Summary of the Invention
[0004] This utility model proposes a pressing head device for pressing an end plate into the port of a steel pipe. The technical problem to be solved by this utility model is how to improve the connection accuracy between the end plate and the steel pipe when the end plate is pressed into the port of the steel pipe using a pressing machine.
[0005] This utility model also proposes an automatic steel pipe end plate pressing machine, which improves both the accuracy of pressing the end plate into the steel pipe end and the processing efficiency.
[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution: A pressing head device for pressing an end plate into the end of a steel pipe, characterized in that it includes a pressing head seat, a pressing rod, a backing, 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 supporting 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 is fixedly connected to the pressing head seat, and the end of the backing near the installation plane of the pressing rod is provided with an abutment plane for contacting and limiting the end face of the steel pipe. The positioning clamp assembly is used to clamp and position the end plate located on the installation plane. The positioning clamp assembly includes a positioning seat and two symmetrically arranged clamps. The clamps are closable and mounted on the positioning seat. The positioning seat is connected to the pressing head seat or the backing through a first slide rail guide assembly. The guiding direction of the first slide rail guide assembly is parallel to the axial direction of the pressing rod.
[0007] An automatic steel pipe end plate pressing machine includes a frame, a set of steel pipe pre-positioning clamps for horizontally pre-positioning the steel pipe, and two sets of end plate pressing devices for clamping and positioning the end plates. The steel pipe pre-positioning clamps include two clamping positioning blocks, each with a positioning groove on its top surface that matches the outer surface of the steel pipe. The clamping positioning blocks are fixedly connected to the frame. The two sets of end plate pressing devices are arranged opposite each other on both sides of the steel pipe pre-positioning clamps along the axial direction of the steel pipe. Each end plate pressing device includes a drive assembly and the aforementioned pressing head device. The pressing head seat of the pressing head device is slidably connected to the frame via a second slide rail guide assembly. The drive assembly is mounted on the frame and connected to the pressing head seat of the pressing head device. The drive assembly drives the pressing head device to move along the guiding direction of the second slide rail guide assembly. When the drive assemblies in both sets of end plate pressing devices drive the corresponding connected pressing head devices to move synchronously towards each other, two end plates can be pressed into the two ends of the steel pipe simultaneously.
[0008] When using the automatic pressing of steel pipe end plates into the workpiece, the steel pipe is placed in the positioning groove; each of the two sets of pressing head devices is equipped with an end plate. Specifically, firstly, the operator manually or the robot automatically places the end plate on the mounting plane of the pressing rod. The magnetic force or negative pressure of the magnetic adsorption component or vacuum adsorption component keeps the end plate on the mounting plane of the pressing rod, and then the operator or robot can release the end plate; then the positioning clamping component is operated to use two clamps to hold the positioning end plate, which significantly improves the positional consistency of the end plate.
[0009] The control drive component drives the corresponding connected pressure head device to move synchronously towards each other. During this process, the positioning clamp component maintains the clamping state of the end plate, improves the clamping stability of the end plate, significantly reduces the possibility of displacement or falling off when the pressure head device moves, and improves the docking accuracy between the end plate and the steel pipe.
[0010] Preferably, during the pressing process, the positioning clamp assembly maintains the clamping end plate state. When the end face of the steel pipe contacts the clamp, as the pressing depth increases, the steel pipe pushes the positioning clamp assembly to slide along the linear guide structure, realizing the automatic retraction of the positioning clamp assembly; until the end face of the steel pipe contacts the abutting plane.
[0011] Compared with existing technologies, this pressure head device and automatic steel pipe end plate pressing machine have high consistency in end plate clamping position, high precision in end plate and steel pipe connection, and the end plate is not prone to displacement when pressed into the steel pipe, thereby improving the connection precision 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 steel pipe end plate pressing machine adopts a horizontal layout. The steel pipe only needs to be pre-positioned, which improves the connection accuracy between the end plate and the steel pipe, while also enhancing the convenience of installing the steel pipe and removing the workpiece, thus increasing processing efficiency. The automatic steel pipe end plate pressing machine not only achieves automatic processing through the operation of the drive components, but also simultaneously completes the processing of both ends of the workpiece, offering the advantage of high processing efficiency.
[0013] This pressing head device is suitable not only for horizontally arranged automatic steel pipe end plate pressing machines, but also for vertically arranged automatic steel pipe end plate pressing machines.
[0014] Preferably, a positioning plate is fixed on the support, and the positioning plate has positioning holes that are directly opposite the mounting plane of the pressure rod. The positioning holes are for the end of the steel pipe to pass through and for positioning the end position of the steel pipe. The positioning plate further improves the positional consistency of the steel pipe end, ensures high precision in the connection between the end plate and the steel pipe, reduces the precision required for the steel pipe to be placed in the positioning groove, and improves 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 guide section with an inclined side.
[0016] Preferably, the backrest and the pressure head seat are directly fixed together by bolts; or the backrest and the pressure head seat are connected by a first guide structure having a guide rod and a guide hole, the guide direction of the first guide structure being parallel to the axial direction of the pressure rod, and the backrest and the pressure head seat are also connected by a locking structure, which enables the backrest and the pressure head seat to be in a fixed connection state.
[0017] Preferably, the locking structure includes a first locking bolt and an adjusting slider. The adjusting slider is connected to the pressure head seat via a second guide structure with a guide groove. The guiding direction of the second guide structure is perpendicular to the axial direction of the pressure rod. The backrest and the adjusting slider are in a bevel fit. The first locking bolt passes through the pressure head seat and the adjusting slider and is threaded to the backrest. The axial direction of the first locking bolt is parallel to the axial direction of the pressure rod. Alternatively, the locking structure includes a first locking bolt threaded to the pressure head seat. 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 of the backrest, the backrest and the pressure head seat are in a fixed connection state.
[0018] Preferably, the locking structure further includes an adjusting bolt, the axis of which is parallel to the guiding direction of the second guide structure, and the adjusting bolt is axially positioned by a rotating connection with the pressure head seat, and the adjusting bolt is threadedly connected to the adjusting slider.
[0019] Preferably, the chuck is mounted on the positioning seat by a parallel gripper cylinder. The parallel gripper cylinder includes a cylinder body and two gripping fingers that can move synchronously and in opposite directions. The cylinder body is fixedly connected to the positioning seat, and the two chucks are fixedly connected to the two gripping fingers in a one-to-one correspondence. Alternatively, the middle parts of the two chucks are oscillatingly connected to the positioning seat by a rotating shaft, and the two chucks are also connected by a spring.
[0020] Preferably, a return spring, two opposing permanent magnets, or a cylinder are provided 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 robotic arm assembly for automatically placing an end plate from the conveyor belt assembly onto the mounting plane; the conveyor belt assembly includes a conveyor belt and two end plate clamping rods disposed above the conveyor belt, the conveyor belt and the end plate clamping rods forming a conveying trough for vertical placement of the end plate; an elastic pressure plate is installed on the base above the first end of the conveying trough, the elastic pressure plate being used to press the end plate located in the first end of the conveying trough onto the conveyor belt; a blocking rod is also provided above the conveying trough, the blocking rod being used for the first end plate to rest against; an avoidance cylinder connected to the blocking rod is installed on the base. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of a pressure head device with an end plate for positioning.
[0023] Figure 2 This is a schematic diagram of the main structure of the pressure head device with end plates for positioning.
[0024] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of AA.
[0025] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure of BB.
[0026] Figure 5 This is an exploded view of the pressure head device.
[0027] Figure 6 This is a three-dimensional structural diagram of the pressure head device after the positioning plate has been removed.
[0028] Figure 7 It is a three-dimensional structural diagram showing the state in which the end is pressed into the steel pipe using a pressure head device.
[0029] Figure 8 This is a three-dimensional structural diagram of an automatic steel pipe end plate pressing machine.
[0030] Figure 9 This is a three-dimensional structural diagram of the end plate pressing device.
[0031] In the diagram, 100 is the frame; 100a is the main frame; 100b is the horizontal slide table; 100c is the third slide rail guide 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 drive assembly; 300d is the second drive assembly; 300e is the conveyor belt assembly; 300f is the robot arm assembly; 300g is the second slide rail guide assembly; 400 is the steel pipe; 5 00. End plate; 1. Pressure head seat; 2. Pressure rod; 2a. Mounting plane; 3. Backing; 3a. Abutting plane; 4. Positioning clamp assembly; 4a. Positioning seat; 4b. Clamp; 4c. Parallel gripper cylinder; 5. Positioning plate; 5a. Positioning hole; 6. Vacuum adsorption assembly; 7. Guide rod; 8. First locking bolt; 9. Adjusting slider; 10. Adjusting bolt; 11. First slide rail guide assembly; 12. Return spring; 31. Conveyor belt; 32. End plate clamping rod; 33. Elastic pressure plate; 34. Blocking rod; 35. Avoidance cylinder. Detailed Implementation
[0032] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0033] In the description of this utility model, 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0035] In this utility model, unless otherwise explicitly 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.
[0036] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening 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 intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0037] Example 1: As Figures 1 to 7 As shown, a pressing head device for pressing an end plate 500 into the port of a steel pipe 400 includes a pressing head seat 1, a pressing rod 2, a backing 3, a positioning clamp assembly 4, and a positioning plate 5.
[0038] The pressure head seat 1 is the basic component. One end of the pressure rod 2 is fixedly connected to the pressure head seat 1, and the other end of the pressure rod 2 is provided with a mounting surface 2a for supporting the end plate 500. The shape and size of the mounting surface 2a match the end plate 500. A vacuum adsorption assembly 6 for adsorbing the end plate 500 is installed on the mounting surface 2a of the pressure rod 2. The accompanying drawings show the suction head and the air passage connected to the suction head included in the vacuum adsorption assembly 6, but the vacuum generator connected to the air passage is not shown.
[0039] Depending on the actual situation, the vacuum adsorption component 6 can be replaced by a magnetic adsorption component, which includes an electromagnet or a permanent magnet.
[0040] The support 3 is fixedly connected to the pressure head seat 1. One end of the support 3 near the mounting plane 2a of the pressure rod 2 has an abutment plane 3a, which is used to contact and limit the movement of the end face of the steel pipe 400. The support 3 and the pressure head seat 1 are connected by a first guide structure having a guide rod 7 and a guide hole. The guiding direction of the first guide structure is parallel to the axial direction of the pressure rod 2. Figure 3The diagram shows the axial line of the pressure rod 2, and the connection between the support 3 and the pressure head seat 1 via a locking structure. When the support 3 moves along the guiding direction of the first guide structure, the distance between the abutment plane 3a and the mounting plane 2a is adjusted, thereby adjusting the depth of the end plate 500 pressed into the end of the steel pipe 400. Once adjusted, the locking structure ensures a fixed connection between the support 3 and the pressure head seat 1. The attached diagram shows the locking structure includes a first locking bolt 8, an adjusting slider 9, and an adjusting bolt 10. The adjusting slider 9 is connected to the pressure head seat 1 via a second guide structure with a guide groove. The guiding direction of the second guide structure is perpendicular to the axial direction of the pressure rod 2. The support 3 and the adjusting slider 9 are fitted with an inclined surface. The first locking bolt 8 passes through the pressure head seat 1 and the adjusting slider 9 and is threaded to the support 3. The axial direction of the first locking bolt 8 is parallel to the axial direction of the pressure rod 2. The axial direction of the adjusting bolt 10 is parallel to the guiding direction of the second guide structure. The adjusting bolt 10 is axially connected to the pressure head seat 1. The rotating connection for positioning, the adjusting bolt 10 and the adjusting slider 9 are threaded together. Thus, when the first locking bolt 8 is in the loose state, turning the adjusting bolt 10 can adjust the axial position of the backrest 3 relative to the pressure rod 2, thereby adjusting the distance between the abutment plane 3a and the mounting plane 2a. After adjustment, tightening the first locking bolt 8 will fix the backrest 3 and the pressure head seat 1 in a fixed connection state. This structure has the advantages of large load-bearing capacity, the backrest 3 is not easy to move when the backrest 3 and the pressure head seat 1 are fixedly connected, and the backrest 3 is easy to adjust and has high adjustment accuracy.
[0041] Depending on the actual situation, the locking structure can also be replaced by the following scheme, such as the locking structure including a first locking bolt 8 that is 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. When the end face of the first locking bolt 8 presses against the side of the backrest 3, the backrest 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 backrest 3 is in a position adjustable state.
[0042] The positioning clamp assembly 4 is used to clamp and position the end plate 500 located on the mounting plane 2a. The positioning clamp assembly 4 includes a positioning base 4a and two symmetrically arranged clamps 4b, which are closable and mounted on the positioning base 4a. The accompanying drawings show that the clamps 4b are mounted on the positioning base 4a via a parallel gripper cylinder 4c. The parallel gripper cylinder 4c includes a cylinder body and two gripping fingers that can move synchronously and in opposite directions. The cylinder body is fixedly connected to the positioning base 4a, and the two clamps 4b are fixedly connected to the two gripping fingers in a one-to-one correspondence. When the two gripping fingers are in the open state, the end plate 500 can be easily placed between the two clamps 4b. When the two gripping fingers switch from the open state to the closed state, the two gripping fingers clamp and position the end plate 500, automatically correcting the position of the end plate 500 during this process. The positioning seat 4a is connected to the backing 3 through the 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. The attached drawings show that there are two sets of the first slide rail guide assemblies 11. Thus, the positioning clamp assembly 4 has the advantages of flexible movement and large load-bearing capacity. That is, when the clamp 4b is in contact with the steel pipe 400, the positioning clamp assembly 4 is not easy to drive the end plate 500 to move.
[0043] Depending on the actual situation, the first slide rail guide 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 guide assembly 11.
[0044] A return spring 12 is provided 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 separates from the clamp 4b, the return spring 12 can move the positioning clamp assembly 4 to the initial position.
[0045] A positioning plate 5 is fixed on the support 3. The positioning plate 5 has a positioning hole 5a that is directly opposite the mounting plane 2a of the pressure rod 2. The positioning hole 5a allows the end of the steel pipe 400 to pass through and is used to position the end of the steel pipe 400. The positioning plate 5 not only improves the positional consistency of the end of the steel pipe 400, but also allows the clamp 4b to abut against it to limit the reset stroke of the positioning clamp assembly 4, thereby controlling the contact position between the clamp 4b and the end plate 500. This ensures that after the end plate 500 is fully fitted or partially embedded in the end of the steel pipe 400, the end face of the steel pipe 400 then contacts the clamp 4b. The positioning hole 5a includes a positioning section adapted to the end of the steel pipe 400 and a guide section with a beveled side. During the insertion of the end of the steel pipe 400 into the positioning hole 5a, it is first guided by the beveled side of the guide section and then inserted into the positioning section. Therefore, the positioning plate 5 not only improves the positional consistency of the end of the steel pipe 400, but also reduces the initial positional accuracy requirements of the steel pipe 400.
[0046] An automatic pressing machine for steel pipe 400 end plates 500 includes a frame 100, a set of steel pipe pre-positioning clamps 200, and two sets of end plate pressing devices 300. The frame 100 includes a main frame 100a and a horizontal slide 100b. The main frame 100a can usually be placed on the ground. The horizontal slide 100b is connected to the main frame 100a through a third slide rail guide assembly 100c. The horizontal slide 100b and the main frame 100a can also be connected by a second locking bolt. That is, by tightening the second locking bolt, the horizontal slide 100b and the main frame 100a are in a locked connection state or the horizontal slide 100b can move relative to the main frame 100a along the guiding direction of the third slide rail guide assembly 100c.
[0047] The steel pipe pre-positioning fixture 200 includes two fixture positioning blocks 200a, each with a positioning groove 200b on its top surface that fits the outer side of the steel pipe 400. The two fixture positioning blocks 200a are referred to as the first fixture positioning block 200a and the second fixture positioning block 200a, respectively. The first fixture positioning block 200a is fixedly connected to the main frame 100a of the machine frame 100, and the second fixture positioning block 200a is fixedly connected to the horizontal slide 100b of the machine frame 100.
[0048] Two sets of end plate pressing devices 300 are disposed on both sides of the steel pipe pre-positioning clamp 200, that is, the two sets of end plate pressing devices 300 are respectively located on the outer sides of both ends of the steel pipe 400 pre-positioned on the steel pipe pre-positioning clamp 200. The end plate pressing device 300 includes the above-mentioned pressing head device and driving assembly; the two sets of pressing head devices are respectively referred to as the first pressing head device 300a and the second pressing head device 300b, and the two sets of driving assemblies are respectively referred to as the first driving assembly 300c and the second driving assembly 300d. The driving assembly includes a motor, a cylinder or a hydraulic cylinder. The pressing head seat 1 in the first pressing head device 300a is slidably connected to the main frame 100a of the frame 100 through the second slide rail guide assembly 300g. The cylinder body of the first driving assembly 300c is fixed on the main frame 100a of the frame 100, and the cylinder piston rod of the first driving assembly 300c is connected to the pressing head seat 1 in the first pressing head device 300a. The pressure head seat 1 in the second pressure head device 300b is slidably connected to the horizontal slide table 100b of the frame 100 via the second slide rail guide assembly 300g. The cylinder body of the second drive assembly 300d is fixed on the horizontal slide table 100b of the frame 100, and the cylinder piston rod of the second drive assembly 300d is connected to the pressure head seat 1 in the second pressure head device 300b.
[0049] The guiding direction of the second slide rail guide assembly 300g is parallel to the guiding direction of the third slide rail guide assembly 100c. The first pressure head device 300a and the second pressure head device 300b are arranged opposite each other. Thus, the movable horizontal slide table 100b can greatly adjust the distance between the first pressure head device 300a and the second pressure head device 300b, as well as the distance between the first clamping positioning block 200a and the second clamping positioning block 200a, thereby making the automatic pressing machine for the steel pipe 400 end plate 500 suitable for processing workpieces with a larger length range.
[0050] The end plate pressing device 300 also includes a base, a conveyor belt assembly 300e for conveying end plates 500, and a robot assembly 300f for automatically placing one end plate 500 from the conveyor belt assembly 300e onto the mounting plane 2a. The conveyor belt assembly 300e includes a conveyor belt 31 and two end plate clamping rods 32 disposed above the conveyor belt 31. The conveyor belt 31 and the end plate clamping rods 32 form a conveying trough for vertically placing the end plate 500. An elastic pressure plate 33 is mounted on the base above the first end of the conveying trough. The elastic pressure plate 33 is used to press the end plate 500 located in the first end of the conveying trough onto the conveyor belt 31. This structure significantly reduces the possibility of the vertically placed end plate 500 automatically tipping over. Vertical placement of the end plate 500 not only increases the number of end plates 500 placed per unit length of the conveying trough, but also facilitates the robot assembly 300f in transferring the first end plate 500 onto the mounting plane 2a, thereby simplifying the structure of the robot assembly 300f.
[0051] A blocking rod 34 is also provided above the conveying trough, which is used by the first end plate 500 to lean against. An avoidance cylinder 35 connected to the blocking rod 34 is installed on the base. The avoidance cylinder 35 cooperates with the robot arm assembly 300f to prevent the first end plate 500 from tipping over, ensuring the continuity and stability of the end plate 500 conveying.
[0052] The robotic arm assembly 300f includes a vacuum adsorption component for adsorbing end plates 500. The vacuum adsorption component is connected to the base in sequence through multiple conveying cylinders. The conveying cylinders enable the vacuum adsorption component to move horizontally back and forth, so that the first end plate 500 is separated from the other end plates 500 in the horizontal back and forth direction, avoiding the burrs of the end plates 500 from corresponding to each other, and placing the end plates 500 on the mounting plane 2a in a direction perpendicular to the mounting plane 2a, thereby improving the continuity and stability of the end plate 500 conveying.
[0053] By describing the process of processing heat dissipation tubes using an automatic press-fit machine with 400mm end plates and 500mm end plates, the function and advantages of the automatic press-fit machine and press head device are further explained.
[0054] The first step is to install the steel pipe 400 and the end plate 500 in any order.
[0055] When installing the steel pipe 400, one end of the steel pipe 400 is placed in the positioning groove 200b of a clamp positioning block 200a, and the other end of the steel pipe 400 is placed in the positioning groove 200b of another clamp positioning block 200a. The steel pipe pre-positioning clamp 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, firstly, multiple end plates 500 are stacked sequentially and placed vertically in the conveyor trough. The conveyor belt 31 of the conveyor belt assembly 300e is moved to move the multiple end plates 500 towards the first end of the conveyor trough until the first end plate 500 contacts the blocking rod 34. At this time, the elastic pressure plate 33 presses at least the second end plate 500 onto the conveyor belt 31.
[0057] Then, the manipulator assembly 300f is used to transfer the first end plate 500 to the mounting plane 2a of the pressure head device and release the end plate 500. The magnetic force or negative pressure of the magnetic adsorption assembly or vacuum adsorption assembly 6 of the pressure head device keeps the end plate 500 on the mounting plane 2a of the pressure rod 2.
[0058] Next, the parallel gripper cylinder 4c of the positioning clamp assembly 4 is activated, and the two grippers 4b clamp and position the end plate 500 located on the mounting plane 2a, improving the positional consistency and stability of the end plate 500; and the robotic arm assembly 300f is reset.
[0059] Next, the two sets of drive components drive the corresponding pressure 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 pressure head device 300a, and the other end of the steel pipe 400 is inserted into the positioning hole 5a of the second pressure head device 300b; this improves the consistency of the end position of the steel pipe 400 and improves the docking accuracy between the end of the steel pipe 400 and the end plate 500. From the moment the end face of the steel pipe 400 contacts the clamp 4b, the positioning clamp assembly 4 moves relative to the backrest 3 along the guiding direction of the first slide rail guide assembly 11, 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, thereby pressing the two end plates 500 into the two ends of the steel pipe 400 simultaneously; during this process, the return spring 12 is gradually compressed.
[0060] Finally, the two sets of drive components are controlled to drive the corresponding connected pressure head devices to move synchronously towards each other to achieve reset, and the positioning clamp assembly 4 is automatically reset under the elastic force of the reset spring 12.
[0061] Example 2: This example is basically the same as Example 1 in structure and principle. The similarities will not be described again. Only the differences will be described. The difference is that the backing 3 and the pressure head seat 1 are not connected by the first guide structure and the locking structure. Instead, the backing 3 and the pressure head seat 1 are directly fixed by bolts. In this way, the distance between the abutment plane 3a and the installation plane 2a is fixed and cannot be adjusted.
[0062] Example 3: This example is basically the same in structure and principle as Example 1. The similarities will not be repeated here; only the differences will be described. The difference lies in the structure where the chuck 4b is mounted on the positioning seat 4a, which can be replaced by the following scheme: The middle parts of both chucks 4b are oscillatingly connected to the positioning seat 4a via a pivot shaft. The two chucks 4b are also connected by a spring, allowing the end plate 500 to be forcibly inserted between the two chucks 4b. After release, the position of the end plate 500 can be automatically corrected.
[0063] Example 4: This example is basically the same as Example 1 in structure and principle. The similarities will not be described again. Only the differences will be described. The differences are: the reset spring 12 can be replaced by two repulsive permanent magnets or by 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 set a reset spring 12 between the positioning seat 4a and the pressure head seat 1. The reset is achieved by the gravity of the positioning clamp assembly 4.
Claims
1. A pressing head device for pressing an end plate into the end of a steel pipe, characterized in that, The device includes a pressure head base (1), a pressure rod (2), a backing plate (3), and a positioning clamp assembly (4). One end of the pressure rod (2) is fixedly connected to the pressure head base (1), and the other end is provided with a mounting surface (2a) for supporting the end plate (500). A magnetic adsorption assembly or a vacuum adsorption assembly (6) for adsorbing the end plate (500) is installed on the mounting surface (2a) of the pressure rod (2). The backing plate (3) is fixedly connected to the pressure head base (1), and the end of the backing plate (3) near the mounting surface (2a) of the pressure rod (2) is provided with an abutment surface (3a) for abutment. 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 mounting plane (2a). The positioning clamp assembly (4) includes a positioning seat (4a) and two symmetrically arranged clamps (4b). The clamps (4b) are detachably mounted on the positioning seat (4a). The positioning seat (4a) is connected to the pressure head seat (1) or the backrest (3) through the 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 the end of a steel pipe according to claim 1, characterized in that, A positioning plate (5) is fixed on the backrest (3). The positioning plate (5) has a positioning hole (5a) that is directly opposite to the mounting 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 position the end of the steel pipe (400).
3. The pressing head device for pressing an end plate into the end of a steel pipe according to claim 2, characterized in that, The positioning hole (5a) includes a positioning section adapted to the end of the steel pipe (400) and a guide section with a beveled side.
4. The pressing head device for pressing an end plate into the end of a steel pipe according to claim 1, 2, or 3, characterized in that, The backing (3) and the pressure head seat (1) are directly fixed together by bolts; Alternatively, the backrest (3) and the pressure head seat (1) are connected by 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). The backrest (3) and the pressure head seat (1) are also connected by a locking structure. 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 an end plate into the end of a steel pipe according to claim 4, characterized in that, The locking structure includes a first locking bolt (8) and an adjusting slider (9). The adjusting slider (9) is connected to the pressure head seat (1) through a second guide structure with a guide groove. 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 fitted with an inclined surface. The first locking bolt (8) passes through the pressure head seat (1) and the adjusting slider (9) and is threaded to the backrest (3). The axial direction of the first locking bolt (8) is parallel to the axial direction of the pressure rod (2). The locking structure includes a first locking bolt (8) that is 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). When the end face of the first locking bolt (8) presses against the side 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 an end plate into the end of a steel pipe according to claim 5, characterized in that, The locking structure also includes an adjusting bolt (10), the axis of which is parallel to the guiding direction of the second guide structure, the adjusting bolt (10) and the pressure head seat (1) are axially positioned by a rotating connection, and the adjusting bolt (10) and the adjusting slider (9) are threadedly connected.
7. The pressing head device for pressing an end plate into the end of a steel pipe according to claim 1, 2, or 3, characterized in that, The chuck (4b) is mounted on the positioning seat (4a) via a parallel gripper cylinder (4c). The parallel gripper cylinder (4c) includes a cylinder body and two grippers that can move synchronously and in opposite directions. The cylinder body is fixedly connected to the positioning seat (4a), and the two chucks (4b) are fixedly connected to the two grippers one-to-one. Alternatively, the middle of both chucks (4b) can be oscillatingly connected to the positioning seat (4a) via a pivot, and the two chucks (4b) can also be connected by a spring.
8. The pressing head device for pressing an end plate into the end of a steel pipe according to claim 1, 2, or 3, characterized in that, A reset spring (12), two opposing permanent magnets, or a cylinder are provided 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 clamps (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) includes two fixture positioning blocks (200a), each fixture positioning block (200a) having a positioning groove (200b) on its top surface that is adapted to the outer side of the steel pipe (400); the fixture positioning blocks (200a) are fixedly connected to the frame (100); two sets of end plate pressing devices (300) are arranged opposite to each other 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) includes a drive assembly and a pressing head device as described in any one of claims 1 to 8. The pressure head seat (1) of the pressure head device is slidably connected to the frame (100) through the second slide rail guide assembly (300g). The drive assembly is installed on the frame (100) and is connected to the pressure head seat (1) of the pressure head device. The drive assembly is used to drive the pressure head device to move along the guide direction of the second slide rail guide assembly (300g). When the drive assemblies in the two sets of end plate pressing devices (300) drive the corresponding connected pressure head devices to move synchronously towards each other, the two end plates (500) can be pressed into the two ends 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 includes a base, a conveyor belt assembly (300e) for conveying end plates (500), and a robotic arm assembly (300f) for automatically placing an end plate (500) on the conveyor belt assembly (300e) onto the mounting plane (2a); 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) forming a conveying trough for vertical placement of the end plate (500); an elastic pressure plate (33) is installed on the base above the first end of the conveying trough, the elastic pressure plate (33) is used to press the end plate (500) located in the first end of the conveying trough onto the conveyor belt (31); a blocking rod (34) is also provided above the conveying trough, the blocking rod (34) is for the first end plate (500) to lean against; an avoidance cylinder (35) connected to the blocking rod (34) is installed on the base.