Frame flipping apparatus and frame welding station

Abstract

The application belongs to the technical field of engineering machinery, and particularly relates to a frame overturning device and a frame welding workstation. The frame overturning device comprises a turnover box seat and a workpiece clamping tool. The turnover box seat comprises a box and a tool mounting table. The box is provided with an X-axis rotary driving component in transmission connection with the tool mounting table to drive the tool mounting table to rotate around the X-axis. The workpiece clamping tool is mounted on the tool mounting table and comprises an inner limiting assembly and an outer limiting assembly. The inner limiting assembly comprises an inner support driving mechanism and an inner support connected with the inner support driving mechanism. The outer limiting assembly comprises an outer clamping driving mechanism and an outer clamping connected with the outer clamping driving mechanism. The inner support driving mechanism and the outer clamping driving mechanism are driven in cooperation to make the inner support and the outer clamping approach or move away from each other along the Y-axis direction. In the application, the frame overturning device realizes stable clamping of the frame workpiece through the double driving mechanisms.

Description

Technical Field

[0001] This invention belongs to the field of engineering machinery technology, specifically relating to a frame flipping device and a frame welding workstation. Background Technology

[0002] Frame structures are widely used in industries such as automobiles and construction machinery, such as the structure composed of the connection between the main beam and crossbeam of automobile chassis, and the subframe structure used in engineering modified vehicles.

[0003] Currently, in the domestic production of frame-type workpieces, simple tooling is mostly used for support, with manual flipping and repositioning using lifting tools, followed by manual welding. This process is difficult to control in terms of flipping angle and involves high manual labor intensity. While some flipping and repositioning equipment exists to assist in welding frame-type workpieces and achieve arbitrary angle flipping, ensuring the workpiece is securely fixed during the flipping process is crucial for guaranteeing welding quality. Therefore, how to securely fix frame-type workpieces on flipping and repositioning equipment is a pressing technical problem that needs to be solved. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies of the prior art, the present invention provides a frame flipping device and a frame welding workstation. The frame flipping device uses a dual-drive mechanism to achieve stable clamping of frame-type workpieces.

[0005] To achieve the above objectives, the first aspect of the present invention provides a frame flipping device, the frame flipping device comprising:

[0006] A flip-up chassis base includes a chassis and a tooling mounting platform. The chassis houses an X-axis rotation drive unit that is connected to the tooling mounting platform for driving the platform to rotate around the X-axis.

[0007] A workpiece clamping fixture, mounted on a fixture mounting table, includes an inner limiting assembly and an outer limiting assembly. The inner limiting assembly includes an inner support drive mechanism and an inner support member connected to the inner support drive mechanism. The outer limiting assembly includes an outer clamping drive mechanism and an outer clamping member connected to the outer clamping drive mechanism. The outer clamping drive mechanism includes a first bidirectional lead screw arranged along the Y-axis. The inner support member includes a connecting rod seat and an inner support adjusting rod. The outer clamping member includes a movable mounting seat, an outer clamping limiting block, and a Z-axis limiting member. The movable mounting seat is slidably connected to the first bidirectional lead screw on the outer clamping drive mechanism. The outer clamping limiting block is mounted on the movable mounting seat, and the Z-axis limiting member is mounted on... The device includes a Z-axis pressing component located on the vertical side of the movable mounting base. One end of the Z-axis pressing component is linearly movable along the Z-axis direction to extend between the outer clamping limit block and the inner support adjusting rod. One end of the inner support adjusting rod is connected to the end of the connecting rod seat near the outer clamping drive mechanism, and the other end extends outward along the Y-axis direction. The Z-axis limiting component also includes a Z-axis limiting seat, which includes a vertically arranged column rod and a horizontal inclined rod. One end of the column rod is connected to the movable mounting base, and the horizontal inclined rod extends inward obliquely from the other end of the column rod in the horizontal direction. The Z-axis pressing component is mounted on the horizontal inclined rod.

[0008] The inner support drive mechanism and the outer clamp drive mechanism work together to drive the inner support and the outer clamp to move closer or further apart along the Y-axis.

[0009] In an embodiment of the present invention, the inner limiting component includes two inner support members arranged at intervals along the Y-axis direction, and the outer limiting component includes two outer clamping members arranged at intervals along the Y-axis direction. The two inner support members are located between the two outer clamping members. The inner support driving mechanism drives the two inner support members to move closer to or further away from the outer clamping members on the same side at the same time, and the outer clamping driving mechanism drives the two outer clamping members to move closer to or further away from the inner support members on the same side at the same time.

[0010] In an embodiment of the present invention, both the inner support drive mechanism and the outer clamp drive mechanism are ball screw mechanisms. The ball screw mechanism includes a second bidirectional screw arranged along the Y-axis on the inner support drive mechanism and a second Y-axis drive member that is hygienically connected to the second bidirectional screw on the inner support drive mechanism. The first bidirectional screw on the outer clamp drive mechanism is hygienically connected to the first Y-axis drive member.

[0011] In an embodiment of the present invention, one end of the connecting rod seat is slidably connected to the second bidirectional lead screw on the inner support drive mechanism, and the other end extends along the X-axis direction toward the outer clamp drive mechanism;

[0012] Among them, the inner support adjusting rod can move linearly along the Y-axis relative to the connecting rod seat.

[0013] In embodiments of the present invention, the inner limiting component further includes:

[0014] The inner limit mounting base is installed on the tooling mounting table; and

[0015] The top support rod is installed on both ends of the inner limit mounting seat in the Y-axis direction;

[0016] The inner support drive mechanism is mounted on the inner limit mounting seat. One end of the top support rod is connected to the inner limit mounting seat, and the other end can move linearly along the X-axis to extend between the inner support member and the outer clamping member.

[0017] In an embodiment of the present invention, the outer limiting assembly further includes an outer limiting mounting seat mounted on a tooling mounting table, an inner limiting mounting seat located between the chassis and the outer limiting mounting seat, and an outer clamping drive mechanism mounted on the outer limiting mounting seat.

[0018] In an embodiment of the present invention, a frame welding workstation is provided, which includes a frame flipping device as described above, the frame flipping device being used to clamp the end of the workpiece in the X-axis direction.

[0019] In an embodiment of the present invention, the frame welding workstation includes a ground rail arranged along the X-axis and at least one pair of frame tilting devices arranged at intervals along the X-axis, wherein at least one of the pair of frame tilting devices is slidably connected to the ground rail.

[0020] In an embodiment of the present invention, the bottom end of the chassis is slidably connected to the ground rail, and the bottom end of the chassis is provided with an X-axis sliding drive component for driving the frame flipping device to slide along the ground rail.

[0021] In this invention, the frame flipping device is used to clamp the ends of frame-like workpieces. The inner support and outer clamping member move closer together along the Y-axis to clamp the ends of the workpiece, and move further apart along the Y-axis to release the workpiece. As the workpiece clamping fixture rotates around the X-axis with the fixture mounting table, the workpiece clamped between the inner support and outer clamping member rotates synchronously with the X-axis. Therefore, this frame flipping device can achieve the flipping and repositioning of frame-like workpieces. Specifically, the inner support and outer clamping member are driven by an inner support drive mechanism and an outer clamping drive mechanism, respectively, and the inner support and outer clamping member constitute the grippers for clamping the ends of the frame-like workpiece. In other words, two drive mechanisms cooperate to move the inner support and outer clamping member to achieve clamping, ensuring that the frame-like workpiece is securely clamped on the workpiece clamping fixture.

[0022] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1This is a schematic diagram of a frame welding workstation provided according to a specific embodiment of the present invention.

[0025] Figure 2 for Figure 1 A close-up view of the frame flipping device in the image;

[0026] Figure 3 for Figure 1 The frame flips the top view of the device;

[0027] Figure 4 for Figure 2 Top view of the inner limit component;

[0028] Figure 5 for Figure 4 AA section view of the inner limit component;

[0029] Figure 6 for Figure 2 A schematic diagram of the outer limit component.

[0030] Explanation of reference numerals in the attached drawings: 10. Frame tilting device; 11. Chassis; 111. X-axis rotary drive component; 12. Tooling mounting table; 13. Inner limit assembly; 131. Inner support drive mechanism; 1311. Second bidirectional lead screw; 1312. Second Y-axis drive component; 132. Inner support component; 1321. Connecting rod seat; 1322. Inner support adjusting rod; 1323. Clamping nut; 133. Inner limit mounting seat; 134. Top support rod; 1 4. External limiting assembly; 141. External clamping drive mechanism; 1411. First bidirectional lead screw; 1412. First Y-axis drive component; 1413. Linear guide rail; 1414. Slider; 142. External clamp; 1421. Movable mounting base; 1422. External clamping limiting block; 1423. Z-axis pressing component; 1424. Z-axis limiting seat; 143. External limiting mounting base; 20. Ground rail; 30. X-axis sliding drive component; 40. Subframe. Detailed Implementation

[0031] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0033] In the embodiments of the present invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positional relationships of the components in relation to the directions shown in the accompanying drawings or in relation to the vertical, perpendicular, or gravitational directions.

[0034] In this invention, unless otherwise stated, directional terms such as "X-axis direction" refer to the length direction of the workpiece, or the length direction of the longitudinal beam in the subframe 40; "Y-axis direction" refers to the width direction of the workpiece, or the length direction of the transverse beam in the subframe 40; "Z-axis direction" refers to the height direction of the workpiece, or the height direction of the subframe 40; the Z-axis direction, X-axis direction, and Y-axis direction are all perpendicular to each other.

[0035] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0036] Figure 2 for Figure 1 A magnified view of a portion of the frame flipping device. Figure 4 for Figure 2 Top view of the inner limit component. Figure 6 for Figure 2 A schematic diagram of the outer limit component. (See diagram below.) Figure 2 , Figure 4 as well as Figure 6 As shown, the first aspect of the present invention provides a frame flipping device 10, which includes a flipping housing base and a workpiece clamping fixture.

[0037] The flip-up chassis base includes a chassis 11 and a tooling mounting platform 12. The chassis 11 is equipped with an X-axis rotation drive component 111 that is connected to the tooling mounting platform 12 for driving the tooling mounting platform 12 to rotate around the X-axis.

[0038] The workpiece clamping fixture is installed on the fixture mounting table 12 and includes an inner limiting component 13 and an outer limiting component 14. The inner limiting component 13 includes an inner support drive mechanism 131 and an inner support member 132 connected to the inner support drive mechanism 131. The outer limiting component 14 includes an outer clamping drive mechanism 141 and an outer clamping member 142 connected to the outer clamping drive mechanism 141.

[0039] The inner support drive mechanism 131 and the outer clamp drive mechanism 141 cooperate to drive the inner support member 132 and the outer clamp member 142 to move closer or further apart along the Y-axis.

[0040] Specifically, the frame flipping device 10 is used to clamp the ends of frame-like workpieces, such as the ends of longitudinal beams in the subframe 40. The inner support member 132 and the outer clamping member 142 move closer together along the Y-axis to clamp the ends of the workpiece, and move further apart along the Y-axis to release the workpiece. During the rotation of the workpiece clamping fixture around the X-axis with the fixture mounting table 12, the workpiece clamped between the inner support member 132 and the outer clamping member 142 rotates synchronously with the X-axis. Therefore, the frame flipping device 10 can achieve the flipping and repositioning of frame-like workpieces. In this invention, the inner support member 132 and the outer clamping member 142 are driven by the inner support drive mechanism 131 and the outer clamping drive mechanism 141, respectively, and the inner support member 132 and the outer clamping member 142 constitute grippers for clamping the ends of frame-like workpieces. In other words, two drive mechanisms work together to move the inner support 132 and the outer clamping member 142 to achieve clamping, ensuring that the frame-type workpiece is firmly clamped on the workpiece clamping fixture.

[0041] In this embodiment, the X-axis rotation drive component 111 is equipped with, for example, an electric motor or a hydraulic motor. The rotation of the tooling mounting table 12 around the X-axis means that the tooling mounting table 12 rotates around the rotation center axis of the X-axis rotation drive component 111. The rotation center axis of the X-axis rotation drive component 111 is the center axis of the output drive shaft.

[0042] Furthermore, the inner limiting assembly 13 includes two inner support members 132 arranged at intervals along the Y-axis direction, and the outer limiting assembly 14 includes two outer clamping members 142 arranged at intervals along the Y-axis direction. The inner support driving mechanism 131 drives the two inner support members 132 to move closer to or further away from the outer clamping members 142 on the same side, and the outer clamping driving mechanism 141 drives the two outer clamping members 142 to move closer to or further away from the inner support members 132 on the same side.

[0043] Specifically, the workpiece clamping fixture includes two grippers arranged at intervals along the Y-axis, consisting of an inner support member 132 and an outer clamping member 142. The distance between the two grippers in the Y-axis direction is adjustable. In other words, the workpiece clamping fixture can clamp two points on the ends of a frame-like workpiece, and the clamping position is adjustable, thus controlling the beam spacing on the frame-like workpiece.

[0044] For example, such as Figure 2As shown, the workpiece clamping fixture clamps the ends of two longitudinal beams arranged parallel to each other along the Y-axis on the subframe 40. The distance between the inner sidewalls of the two longitudinal beams can be controlled by the inner support drive mechanism 131 controlling the distance between the two inner support members 132, i.e., the inner support distance. The distance between the outer sidewalls of the two longitudinal beams can be adjusted by the outer clamp drive mechanism 141 controlling the distance between the two outer clamp members 142, i.e., the outer clamp distance. The length of the crossbeam welded between the two longitudinal beams can be controlled by adjusting the inner support distance. Further adjustment of the outer clamp distance can control the clamping of longitudinal beams with different widths. Therefore, the workpiece clamping fixture can be used for different models of subframes 40. This configuration makes the frame flipping device 10 more versatile.

[0045] Of course, those skilled in the art will understand that, in order to achieve synchronous movement of the inner support member 132 and the outer clamping member 142 of the two grippers, that is, to achieve synchronous clamping or releasing of the two grippers, the inner support drive mechanism 131 and the outer clamping drive mechanism 141 include, for example, a guide rail slider mechanism, a ball screw mechanism, an electric push rod combination mechanism, a hydraulic cylinder combination mechanism, etc. For example, the inner support drive mechanism 131 includes two electric push rods arranged along the Y-axis direction, and the two electric push rods are respectively connected to the two inner support members 132, so as to drive the inner support members 132. Similarly, the outer clamping drive mechanism 141 can also adopt an electric push rod combination mechanism.

[0046] Preferably, both the inner support drive mechanism 131 and the outer clamp drive mechanism 141 are ball screw mechanisms. The ball screw mechanism includes a second bidirectional screw 1311 and a first bidirectional screw 1411 arranged along the Y-axis direction, as well as a second Y-axis drive component 1312 and a first Y-axis drive component 1412 that are drively connected to the second bidirectional screw 1311 and the first bidirectional screw 1411. The right-hand screw section and the left-hand screw section of the second bidirectional screw 1311 and the first bidirectional screw 1411 are respectively connected to two inner support members 132 or two outer clamp members 142.

[0047] like Figures 4 to 6 As shown, in this embodiment, each of the two inner support members 132 and the two outer clamping members 142 is driven to move by a ball screw mechanism. Specifically, the two inner support members 132 are driven by one ball screw mechanism, and the two outer clamping members 142 are driven by one ball screw mechanism. The ball screw mechanism is a bidirectional ball screw. Compared to a technical solution that requires a separate driving mechanism for each inner support member 132 or outer clamping member 142, the bidirectional ball screw mechanism allows for a more compact structure and lower cost for the workpiece clamping fixture.

[0048] It should be noted that an inner support member 132 is installed on the second bidirectional lead screw 1311, and an outer clamping member 142 is installed on the first bidirectional lead screw 1411. The second bidirectional lead screw 1311 and the first bidirectional lead screw 1411 include a right-handed lead screw section and a left-handed lead screw section. During the rotation of the second bidirectional lead screw 1311 and the first bidirectional lead screw 1411 driven by the second Y-axis drive member 1312 and the first Y-axis drive member 1412, the two components installed on the right-handed and left-handed lead screw sections move towards or away from each other; that is, the inner support member 132 and the outer clamping member 142 move closer to or further away from each other. Specifically, by using a ball screw mechanism with bidirectional lead screws, the two grippers can be synchronously clamped or released.

[0049] In this embodiment, the second Y-axis drive component 1312 and the first Y-axis drive component 1412 include, for example, a motor, a hydraulic motor, etc., preferably a hydraulic motor.

[0050] Furthermore, the inner support member 132 includes a connecting rod seat 1321 and an inner support adjusting rod 1322. One end of the connecting rod seat 1321 is slidably connected to the second bidirectional lead screw 1311, and the other end extends outward along the X-axis towards the outer clamping drive mechanism 141. One end of the inner support adjusting rod 1322 is connected to the end of the connecting rod seat 1321 near the outer clamping drive mechanism 141, and the other end extends outward along the Y-axis. The inner support adjusting rod 1322 is capable of linear movement relative to the connecting rod seat 1321 along the Y-axis.

[0051] Specifically, the inner support member 132 consists of two rods. One rod, slidably connected to the second bidirectional lead screw 1311, is a connecting rod seat 1321. The other rod is an inner support adjusting rod 1322, used to abut against the frame-like workpiece for fixation. The connecting rod seat 1321 moves on the second bidirectional lead screw 1311, thereby moving the inner support adjusting rod 1322, allowing it to abut against or move away from the workpiece. In particular, the inner support adjusting rod 1322 can move linearly along the Y-axis relative to the connecting rod seat 1321, enabling fine-tuning of the inner support spacing to ensure the workpiece is firmly secured.

[0052] like Figure 4 As shown, in Figure 4In the illustrated embodiment, the connecting rod seat 1321 is threadedly connected to the inner support adjusting rod 1322. Two clamping nuts 1323 are provided on the inner support adjusting rod 1322, and the end of the connecting rod seat 1321 is located between the two clamping nuts 1323. By rotating the two clamping nuts 1323, the inner support adjusting rod 1322 can move linearly relative to the connecting rod seat 1321 along the Y-axis, thus achieving fine-tuning of the inner support spacing. Of course, the embodiments for achieving linear movement of the inner support adjusting rod 1322 along the Y-axis are not limited to the embodiments shown in the above figures. For example, an adjustable hoop can be provided at the end of the connecting rod seat 1321, and the inner support adjusting rod 1322 passes through the hoop. By loosening the hoop, the inner support adjusting rod 1322 can move along the Y-axis; by tightening the hoop, the inner support adjusting rod 1322 can be fixed. Further examples are not provided here.

[0053] Furthermore, the outer clamp 142 includes a movable mounting base 1421, an outer clamping limiting block 1422, and a Z-axis limiting member. The movable mounting base 1421 is slidably connected to the first bidirectional lead screw 1411. The outer clamping limiting block 1422 is mounted on the movable mounting base 1421. The Z-axis limiting member is mounted on the movable mounting base 1421 and includes a Z-axis pressing member 1423 located on the vertical side of the movable mounting base 1421. One end of the Z-axis pressing member 1423 is linearly movable along the Z-axis direction to extend between the outer clamping limiting block 1422 and the inner support adjusting rod 1322.

[0054] Specifically, the outer clamping limit block 1422 and the Z-axis limiting component are both mounted on the movable mounting base 1421. The movable mounting base 1421 moves on the first bidirectional lead screw 1411, thereby driving the outer clamping limit block 1422 and the Z-axis limiting component to move. The end of the frame-like workpiece is clamped between the outer clamping limit block 1422 and the inner support adjusting rod 1322. In particular, the Z-axis limiting component includes a Z-axis pressing component 1423. One end of the Z-axis pressing component 1423 can move toward the workpiece clamped between the outer clamping limit block 1422 and the inner support adjusting rod 1322 to press the workpiece, thereby achieving the effect of limiting in the Z-axis direction.

[0055] like Figure 6 As shown, in Figure 6 In the embodiment shown, the Z-axis limiting component also includes a Z-axis limiting seat 1424, which includes a vertically arranged column and a horizontal inclined rod. One end of the column is connected to the movable mounting base 1421, and the horizontal inclined rod extends inward from the other end of the column in a horizontal direction. The Z-axis pressing component 1423 is mounted on the horizontal inclined rod.

[0056] It should be noted that, in this embodiment, the Z-axis pressing component 1423 includes, for example, a hydraulic cylinder, an electric push rod, or a pneumatic cylinder, as long as the Z-axis pressing component 1423 can press the workpiece along the Z-axis. Preferably, the Z-axis pressing component 1423 is a pneumatic cylinder.

[0057] like Figure 3 as well as Figure 4 As shown, in this invention, the inner limiting assembly 13 further includes an inner limiting mounting base 133 and a top support rod 134. The inner limiting mounting base 133 is mounted on the tooling mounting table 12. The top support rod 134 is mounted on both ends of the inner limiting mounting base 133 in the Y-axis direction. The inner support drive mechanism 131 is mounted on the inner limiting mounting base 133, one end of the top support rod 134 is connected to the inner limiting mounting base 133, and the other end can move linearly along the X-axis direction to extend between the inner support member 132 and the outer clamping member 142.

[0058] Specifically, the end of the frame-like workpiece is clamped between the inner support member 132 and the outer clamp member 142, and one end of the top support member 134 can move linearly along the X-axis to extend between the inner support member 132 and the outer clamp member 142, thereby supporting the frame-like workpiece to achieve the X-axis limiting effect.

[0059] It should be noted that, in this embodiment, the top support rod 134 includes, for example, a hydraulic cylinder, an electric push rod, or a pneumatic cylinder, as long as the top support rod 134 can press the workpiece along the X-axis. Preferably, the top support rod 134 is a hydraulic cylinder.

[0060] It should be noted that after the outer clamping limiting block 1422 and the inner support adjusting rod 1322 clamp the end of the frame-like workpiece, it is only necessary to ensure that the clamping force exerted by the outer clamping limiting block 1422 and the inner support adjusting rod 1322 on the workpiece is large enough to ensure that the workpiece is securely clamped. Of course, the outer clamping limiting block 1422 and the inner support adjusting rod 1322 can also limit the workpiece along the Y-axis. In a preferred embodiment, a top support rod 134 and a Z-axis pressing component 1423 are also provided to further limit the workpiece in the X-axis and Z-axis directions, ensuring that the workpiece is securely clamped.

[0061] Furthermore, the outer limit assembly 14 also includes an outer limit mounting base 143 mounted on the tooling mounting table 12, an inner limit mounting base 133 located between the chassis 11 and the outer limit mounting base 143, and an outer clamping drive mechanism 141 mounted on the outer limit mounting base 143.

[0062] Specifically, the inner limiting component 13 and the outer limiting component 14 are respectively provided with an inner limiting mounting seat 133 and an outer limiting mounting seat 143 to connect to the tooling mounting table 12. Since the frame-type workpiece is arranged to extend in the X-axis direction when clamped on the frame flipping device 10, specifically extending away from the machine housing 11, it is preferable to place the inner limiting mounting seat 133 between the machine housing 11 and the outer limiting mounting seat 143 to reduce the risk of interference when clamping the frame-type workpiece.

[0063] It should be noted that, in the embodiments of the present invention, the inner support drive mechanism 131 and the outer clamp drive mechanism 141 further include a guide rail slider mechanism. Specifically, a guide rail slider mechanism is provided between the inner limit mounting seat 133 and the inner support member 132 and between the outer limit mounting seat 143 and the outer clamp member 142 to ensure the stability of the inner support member 132 and the outer clamp member 142 during the movement process, and to ensure the structural stability of the inner support drive mechanism 131 and the outer clamp drive mechanism 141.

[0064] like Figure 6 As shown, in Figure 6 In the illustrated embodiment, linear guide rails 1413 are respectively provided on both sides of the Y-axis centerline of the first bidirectional lead screw 1411. The two linear guide rails 1413 are arranged parallel to each other along the X-direction and are mounted on the outer limiting mounting base 143. A slider 1414 that is slidably connected to the linear guide rails 1413 is provided on the movable mounting base 1421. It will be understood by those skilled in the art that a guide rail slider mechanism (not shown in the figure) can be similarly provided between the connecting rod seat 1321 and the inner limiting mounting base 133, which will not be described in detail here.

[0065] It should be noted that in the above embodiments, the "inner" and "outer" relationships of the constituent parts on the workpiece clamping fixture are determined based on the center of the workpiece clamping fixture.

[0066] Figure 1 This is a schematic diagram of a frame welding workstation provided according to a specific embodiment of the present invention. Figure 1 As shown, a second aspect of the present invention provides a frame welding workstation, which includes the aforementioned frame flipping device 10 for clamping the X-axis end of a workpiece. Clearly, this frame welding workstation possesses all the beneficial effects brought about by the aforementioned frame flipping device 10, which will not be described in detail here.

[0067] Additionally, it should be noted that the frame welding workstation includes other equipment that interacts with the frame flipping device 10. Those skilled in the art will understand that, to improve automation and further reduce manual labor intensity, the frame welding workstation may also include automated welding equipment (e.g., multi-degree-of-freedom robotic arm welding equipment) to weld frame-like workpieces clamped on the frame flipping device 10, achieving unmanned operation.

[0068] Furthermore, the frame welding workstation includes a ground rail 20 arranged along the X-axis and at least a pair of frame tilting devices 10 arranged at intervals along the X-axis, at least one of the pair of frame tilting devices 10 being slidably connected to the ground rail 20.

[0069] Specifically, the frame welding workstation includes at least one pair of frame flipping devices 10. The pair of frame flipping devices 10 can be clamped at both ends of the frame-like workpiece in the X direction. One of the pair of frame flipping devices 10 can move along the X-axis direction, thereby adjusting the distance between the pair of frame flipping devices 10. This makes it suitable for frame-like workpieces with different X-axis lengths, making the frame welding workstation more flexible.

[0070] like Figure 1 As shown, in Figure 1 In the embodiment shown, a pair of frame flipping devices 10 are slidably connected to the ground rail 20. The pair of frame flipping devices 10 are respectively clamped at both ends of the longitudinal beam of the subframe 40. By moving the frame flipping devices 10, subframes 40 with longitudinal beams of different lengths can be used.

[0071] It should be noted that, in some embodiments of the present invention, the frame flipping device 10 further includes a top support rod 134 and a Z-axis pressing component 1423. The top support rod 134 and the Z-axis pressing component 1423 achieve X-axis and Z-axis direction limiting, ensuring that the frame-like workpiece is further securely clamped while maintaining good repeatability. In particular, when used in conjunction with a robotic arm to achieve automated production, this ensures the repeatability of the robotic arm's welding accuracy.

[0072] Of course, furthermore, in some embodiments of the present invention, the workpiece clamping fixture in the frame flipping device 10 adopts a bidirectional ball screw mechanism, which makes the structure more compact and occupies less space. In particular, when working with a robotic arm to achieve automated production, it reduces the risk of interference between the robotic arm and the workpiece clamping fixture, allowing the robotic arm to have a larger welding operation space.

[0073] Furthermore, the bottom of the chassis 11 is slidably connected to the ground rail 20, and the bottom of the chassis 11 is provided with an X-axis sliding drive component 30 for driving the frame tilting device 10 to slide along the ground rail 20.

[0074] Specifically, the X-axis sliding drive component 30 drives the frame tilting device 10 to move linearly along the X-axis direction. Figure 1 In the illustrated embodiment, the X-axis sliding drive component 30 preferably uses a motor and is connected to a gearbox for transmission, and the ground rail 20 uses a rack and pinion mechanism. In other words, a rack and pinion mechanism is used to drive the frame tilting device 10 to move. Of course, it is understood that to achieve linear movement of the frame tilting device 10 along the X-axis, it is not limited to a rack and pinion mechanism, but also includes, for example, a guide rail slider mechanism, which will not be listed here.

[0075] In summary, the present invention aims to provide a frame flipping device 10 and a frame welding workstation. The frame flipping device 10 can ensure stable clamping of the workpiece, and has a compact structure, good versatility, and good clamping repeatability and positioning accuracy. Therefore, in the frame welding workstation composed of the frame flipping device 10 and automated welding equipment, the automated welding equipment can be guaranteed to have good repeatability welding accuracy and welding operation space.

[0076] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0077] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the embodiments of the present invention will not describe the various possible combinations separately.

[0078] Furthermore, various different implementations of the present invention can be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed in the present invention.

Claims

1. A frame flipping apparatus, characterized by, The frame flipping device (10) includes: A flip-up chassis base includes a chassis (11) and a tooling mounting platform (12). The chassis (11) contains an X-axis rotation drive component (111) that is pulsatorically connected to the tooling mounting platform (12) to drive the tooling mounting platform (12) to rotate around the X-axis. A workpiece clamping fixture is mounted on the fixture mounting table (12) and includes an inner limiting component (13) and an outer limiting component (14). The inner limiting component (13) includes an inner support drive mechanism (131) and an inner support member (132) connected to the inner support drive mechanism (131). The outer limiting component (14) includes an outer clamping drive mechanism (141) and an outer clamping member (142) connected to the outer clamping drive mechanism (141). The device includes a first bidirectional lead screw (1411) arranged along the Y-axis. The inner support (132) includes a connecting rod seat (1321) and an inner support adjusting rod (1322). The outer clamp (142) includes a movable mounting seat (1421), an outer clamping limit block (1422), and a Z-axis limiting member. The movable mounting seat (1421) is slidably connected to the first bidirectional lead screw (1411) on the outer clamping drive mechanism (141). The outer clamping limit block (1422) is mounted on... On the movable mounting base (1421), the Z-axis limiting member is mounted on the movable mounting base (1421) and includes a Z-axis pressing member (1423) located on the vertical side of the movable mounting base (1421). One end of the Z-axis pressing member (1423) can move linearly along the Z-axis direction to extend between the outer clamping limiting block (1422) and the inner support adjusting rod (1322). One end of the inner support adjusting rod (1322) is connected to the connecting rod seat (13). 21) The upper end is connected to one end near the external clamping drive mechanism (141), and the other end extends outward along the Y-axis direction. The Z-axis limiting component also includes a Z-axis limiting seat (1424). The Z-axis limiting seat (1424) includes a vertically arranged column rod and a horizontal inclined rod. One end of the column rod is connected to the movable mounting seat (1421). The horizontal inclined rod extends inward from the other end of the column rod in the horizontal direction. The Z-axis pressing component (1423) is installed on the horizontal inclined rod. The inner support drive mechanism (131) and the outer clamp drive mechanism (141) cooperate to drive each other so that the inner support (132) and the outer clamp (142) move closer or further apart along the Y-axis.

2. The frame flipping apparatus of claim 1, wherein, The inner limiting assembly (13) includes two inner support members (132) spaced apart along the Y-axis direction, and the outer limiting assembly (14) includes two outer clamping members (142) spaced apart along the Y-axis direction. The two inner support members (132) are located between the two outer clamping members (142). The inner support driving mechanism (131) drives the two inner support members (132) to move closer to or further away from the outer clamping members (142) on the same side simultaneously. The outer clamp driving mechanism (141) drives the two outer clamping members (142) to move closer to or further away from the inner support members (132) on the same side simultaneously.

3. The frame flipping apparatus of claim 2, wherein, Both the inner support drive mechanism (131) and the outer clamp drive mechanism (141) are ball screw mechanisms. The ball screw mechanism includes a second bidirectional screw (1311) arranged along the Y-axis on the inner support drive mechanism (131) and a second Y-axis drive member (1312) that is pulverizedly connected to the second bidirectional screw (1311) on the inner support drive mechanism (131). The right-hand screw segment and the left-hand screw segment of the second bidirectional screw (1311) on the inner support drive mechanism (131) are respectively connected to the two inner support members (132). The first bidirectional screw (1411) on the outer clamp drive mechanism (141) is pulverizedly connected to the first Y-axis drive member (1412). The right-hand screw segment and the left-hand screw segment of the first bidirectional screw (1411) on the outer clamp drive mechanism (141) are respectively connected to the two outer clamp members (142).

4. The frame flipping apparatus of claim 3, wherein, One end of the connecting rod seat (1321) is slidably connected to the second bidirectional lead screw (1311) on the inner support drive mechanism (131), and the other end extends along the X-axis direction toward the outer clamp drive mechanism (141); The inner support adjusting rod (1322) can move linearly along the Y-axis relative to the connecting rod seat (1321).

5. Frame turnover apparatus according to any one of claims 1 to 4, characterized in that The inner limiting component (13) also includes: An inner limit mounting base (133) is mounted on the tooling mounting table (12); and The top support rod (134) is installed on both ends of the inner limiting mounting seat (133) in the Y-axis direction; The inner support drive mechanism (131) is mounted on the inner limit mounting seat (133). One end of the top support rod (134) is connected to the inner limit mounting seat (133), and the other end can move linearly along the X-axis to extend between the inner support member (132) and the outer clamp member (142).

6. The frame flipping device according to claim 5, characterized in that, The outer limiting component (14) further includes an outer limiting mounting seat (143) mounted on the tooling mounting table (12), the inner limiting mounting seat (133) is located between the chassis (11) and the outer limiting mounting seat (143), and the outer clamping drive mechanism (141) is mounted on the outer limiting mounting seat (143).

7. A frame welding station characterized by, The frame welding workstation includes a frame flipping device (10) according to any one of claims 1 to 6, the frame flipping device (10) being used to clamp the end of the workpiece in the X-axis direction.

8. The frame welding workstation according to claim 7, characterized in that, The frame welding workstation includes a ground rail (20) arranged along the X-axis and at least one pair of frame flipping devices (10) arranged at intervals along the X-axis, at least one of the pair of frame flipping devices (10) being slidably connected to the ground rail (20).

9. The frame welding station of claim 8, wherein, The bottom end of the chassis (11) is slidably connected to the ground rail (20), and the bottom end of the chassis (11) is provided with an X-axis sliding drive component (30) for driving the frame flipping device (10) to slide along the ground rail (20).

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