High-precision sealing welding automatic centering and clamping device

Abstract

The utility model discloses a kind of high-precision seal welding piece automatic centering clamping devices, including manual coarse adjustment mechanism, vertical fine adjustment mechanism, first fine adjustment mechanism, second fine adjustment mechanism and clamping mechanism, manual coarse adjustment mechanism includes base, guide rail, sliding block and positioning structure;Vertical fine adjustment mechanism includes lower adjusting seat, upper adjusting seat, adjusting knob and connecting structure;First fine adjustment mechanism includes first sliding table bottom plate, first sliding adjustment structure and first driver;Second fine adjustment mechanism includes second sliding table bottom plate, second sliding adjustment structure and second driver;Clamping mechanism includes parallel open-close air cylinder, first support plate, second support plate, first clamping jaw and second clamping jaw.The utility model can realize simple structure, it is convenient control, degree of automation is high to reduce cost and improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of high-precision sealing welding parts manufacturing technology, and in particular relates to a device that can automatically center and clamp high-precision sealing welding parts. Background Technology

[0002] Currently, the application of high-precision sealing weldments is becoming increasingly widespread, but positioning and clamping during the manufacturing process is not easy. Many positioning methods employ a reference hole + conical pin positioning (repeatability ±0.005mm), combined with a surface-line-point combination positioning logic to avoid over-positioning. Key surfaces utilize vacuum adsorption or electromagnetic positioning (vacuum chucks for non-magnetic materials, electromagnetic chucks for magnetic materials) to reduce contact deformation. For clamping, flexible clamping mechanisms (such as disc springs or airbag grippers) are selected, applying a uniform and quantifiable clamping force (calculated at 10%-15% of the material's yield strength). The sealing surface uses "pre-tightening + compensating clamping" to prevent sealing failure due to welding thermal deformation. The core requirements are: the coaxiality error between the positioning reference and the sealing surface ≤0.01mm, clamping force fluctuation ≤5%, and the fixture material selected is Invar alloy or titanium alloy matching the thermal expansion coefficient of the weldment to reduce the impact of thermal stress.

[0003] Existing positioning and clamping structures are complex, difficult to control, costly, and have low automation levels, resulting in low production efficiency.

[0004] Therefore, how to achieve a simple structure, convenient control, and high degree of automation to reduce costs and improve production efficiency is a technical problem that urgently needs to be solved in this industry. Utility Model Content

[0005] One of the main objectives of this utility model is to provide an automatic centering and clamping device for high-precision sealed weldments that is simple in structure, easy to control, highly automated, thereby reducing costs and improving production efficiency.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] As in one aspect of this utility model, an automatic centering and clamping device for high-precision sealing weldments is provided, for automatically centering and clamping high-precision sealing weldments, comprising:

[0008] A manual coarse adjustment mechanism includes a base, a guide rail, a slider, and a positioning structure. The guide rail is mounted on the base, the slider cooperates with the guide rail, and the positioning structure is used to position the slider.

[0009] A vertical fine-tuning mechanism includes a lower adjusting seat, an upper adjusting seat, an adjusting knob, and a connecting structure. The lower adjusting seat is connected to the slider. The lower part of the adjusting knob abuts against the lower adjusting seat, and the upper part is screwed to the upper adjusting seat. The upper adjusting seat is connected to the connecting structure.

[0010] The first fine-tuning mechanism includes a first slide base plate, a first sliding adjustment structure and a first driver. The first slide base plate is connected to the connecting structure. The first sliding adjustment structure slides in conjunction with the first slide base plate. The first driver is used to drive the first sliding adjustment structure to move relative to the first slide base plate.

[0011] The second fine-tuning mechanism includes a second slide base plate, a second sliding adjustment structure, and a second driver. The second slide base plate is connected to the first sliding adjustment structure, and the second sliding adjustment structure slides in conjunction with the second slide base plate. The second driver is used to drive the second sliding adjustment structure to move relative to the second slide base plate.

[0012] The clamping mechanism includes a parallel opening and closing cylinder, a first support plate, a second support plate, a first clamping jaw, and a second clamping jaw. The fixed part of the parallel opening and closing cylinder is mounted on the second sliding adjustment structure. The first support plate and the second support plate are mounted side by side on the output part of the parallel opening and closing cylinder. The first clamping jaw is connected to the first support plate, and the second clamping jaw is connected to the second support plate. The first clamping jaw and the second clamping jaw are used to clamp the weldment together.

[0013] In one specific embodiment of the present invention, the positioning structure includes a fixed stop and a movable stop. The fixed stop is mounted on the base, and the movable stop is mounted on the slider. The fixed stop is used to stop the movable stop. The movable stop is fixedly connected to the base in a fixed position via a connector.

[0014] As in a specific embodiment of the present invention, the positioning structure further includes a baffle, which is connected to the open end of the guide rail and protrudes from the upper part of the guide rail.

[0015] As in one specific embodiment of this utility model, the adjustment knob includes a micrometer adjustment structure.

[0016] In one specific embodiment of this utility model, the connecting structure includes a lifting slide plate and a locking plate. One side of the lifting slide plate is connected to the upper adjusting seat, and the other side is connected to the first slide base plate. The lifting slide plate slides in conjunction with the lower adjusting seat. The locking plate is connected to the lifting slide plate. When the height of the lifting slide plate is adjusted to the correct position, the locking plate is fixedly connected to the lower adjusting seat through a locking member.

[0017] As in a specific embodiment of the present invention, both the first sliding adjustment structure and the second sliding adjustment structure include a lead screw nut and a guide module.

[0018] In one specific embodiment of the present invention, both the first driver and the second driver are stepper motors.

[0019] As in a specific embodiment of the present invention, the first gripper and / or the second gripper are provided with V-shaped grooves.

[0020] In one specific embodiment of this utility model, the V-groove is an insulating plate.

[0021] As in one specific embodiment of this utility model, the parallel opening and closing cylinder is connected to a proportional valve.

[0022] As can be seen from the above technical solution, the advantages and positive effects of the high-precision sealing weldment automatic centering and clamping device of this utility model are as follows:

[0023] In this invention, coarse and fine adjustments in three directions are achieved through manual coarse adjustment, vertical fine adjustment, and two fine adjustment structures, enabling accurate positioning. The clamping mechanism automatically and accurately clamps the components, resulting in a simple structure, convenient control, high degree of automation, thereby reducing costs and improving production efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a first-view three-dimensional structural diagram of the automatic centering and clamping device for high-precision sealed weldments of this utility model.

[0026] Figure 2 This is a two-dimensional structural diagram of the automatic centering and clamping device for high-precision sealed weldments according to the present invention, viewed from a second perspective.

[0027] Figure 3 This is a three-dimensional structural diagram of the automatic centering and clamping device for high-precision sealed weldments from a third-view perspective.

[0028] Figure 4 This is a four-dimensional structural diagram of the automatic centering and clamping device for high-precision sealed weldments from the fourth perspective. Detailed Implementation

[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0030] In the following description of various examples of the present invention, reference is made to the accompanying drawings, which form part of the present invention, and which illustrate by way of example different exemplary structures, systems, and steps that can implement various aspects of the present invention. It should be understood that other specific embodiments of the components, structures, exemplary devices, systems, and steps may be used, and structural and functional modifications may be made without departing from the scope of the present invention. Furthermore, although the terms “top,” “bottom,” “front,” “rear,” “side,” etc., may be used in this specification to describe various exemplary features and elements of the present invention, these terms are used herein only for convenience, such as the orientation of the examples as shown in the drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of the present invention.

[0031] like Figures 1 to 4 As shown in one aspect of this utility model, an automatic centering and clamping device for high-precision sealing weldment 6 is provided for automatically centering and clamping high-precision sealing weldment, including a manual coarse adjustment mechanism 1, a vertical fine adjustment mechanism 2, a first fine adjustment mechanism 3, a second fine adjustment mechanism 4, and a clamping mechanism 5.

[0032] In this embodiment, the manual coarse adjustment mechanism 1 includes a base 11, a guide rail 12, a slider 13, and a positioning structure. The guide rail 12 is mounted on the base 11, the slider 13 cooperates with the guide rail 12, and the positioning structure is used to position the slider.

[0033] In this embodiment, the positioning structure includes a fixed stop 14 and a movable stop 15. The fixed stop 14 is mounted on the base 11, and the movable stop 15 is mounted on the slider 13. The fixed stop 14 is used to stop the movable stop 15. The movable stop 15 is fixedly connected to the base through a connector in a fixed position.

[0034] In this embodiment, the positioning structure also includes baffles 16 and 17, which are connected to the open end of the guide rail 12 and protrude from the upper part of the guide rail 12.

[0035] In this embodiment, the guide rail 12 and the slider 13 are both two pieces, which are arranged in parallel. The two sliders 13 are connected by the connecting plate 18, so that the whole can move along the first horizontal direction.

[0036] In this embodiment, the vertical fine-tuning mechanism 2 includes a lower adjusting seat 21, an upper adjusting seat 22, an adjusting knob 23, and a connecting structure. The lower adjusting seat 21 is mounted on the connecting plate 18 via a support seat 28, thereby connecting to the slider 13. The lower part of the adjusting knob 23 abuts against the lower adjusting seat 21, and the upper part is screwed to the upper adjusting seat 22. The upper adjusting seat 22 is connected to the connecting structure. In this embodiment, the vertical fine-tuning mechanism 2 enables precise manual fine-tuning in the vertical direction.

[0037] In this embodiment, the adjustment knob 23 includes a micrometer adjustment structure.

[0038] In this embodiment, the connecting structure includes a lifting slide plate 24 and a locking plate 25. One side of the lifting slide plate 24 is connected to the upper adjusting seat 21, and the other side is connected to the first slide base plate 31. The lifting slide plate 24 slides in conjunction with the lower adjusting seat 22. The locking plate 25 is connected to the lifting slide plate 24. When the height of the lifting slide plate 24 is adjusted to the correct position, the locking plate 25 is fixedly connected to the lower adjusting seat 21 through the locking member 26.

[0039] In this embodiment, the first fine-tuning mechanism 3 includes a first slide base plate 31, a first sliding adjustment structure 33, and a first driver 32. The first slide base plate 31 is connected to the connecting structure, the first sliding adjustment structure 33 slides in conjunction with the first slide base plate 31, and the first driver 32 drives the first sliding adjustment structure 33 to move relative to the first slide base plate 31. In this embodiment, the first fine-tuning mechanism 3 achieves automatic and controllable fine-tuning in a second direction within the horizontal plane, which is perpendicular to the aforementioned first direction.

[0040] In this embodiment, the second fine-tuning mechanism 4 includes a second slide base plate 41, a second sliding adjustment structure 43, and a second driver 42. The second slide base plate 41 is connected to the first sliding adjustment structure 43, and the second sliding adjustment structure 43 slides in conjunction with the second slide base plate 41. The second driver 42 drives the second sliding adjustment structure 43 to move relative to the second slide base plate 41. In this embodiment, the second fine-tuning mechanism 4 achieves automatic and controllable fine-tuning in a first direction within the horizontal plane.

[0041] In this embodiment, the clamping mechanism 5 includes a parallel opening and closing cylinder 51, a first support plate 52, a second support plate 53, a first gripper 54, and a second gripper 55. The fixed part of the parallel opening and closing cylinder 51 is mounted on the second sliding adjustment structure 43. The first support plate 52 and the second support plate 53 are mounted side-by-side on the output part of the parallel opening and closing cylinder 51. The first gripper 54 is connected to the first support plate 52, and the second gripper 55 is connected to the second support plate 53. The first gripper 54 and the second gripper 55 are used to jointly clamp the weldment 6.

[0042] In this embodiment, both the first sliding adjustment structure 33 and the second sliding adjustment structure 43 include a lead screw nut and a guide module.

[0043] In this embodiment, both the first driver 32 and the second driver 42 are stepper motors.

[0044] In this embodiment, the first gripper 54 and / or the second gripper 55 are provided with V-grooves. In this embodiment, the V-grooves are insulating plates. In this embodiment, the parallel opening and closing cylinder 51 is connected to a proportional valve. In this embodiment, precise automatic operation is achieved by controlling the actions of the first driver 32, the second driver 42, and the parallel opening and closing cylinder 51 through the control system.

[0045] As can be seen from the above technical solution, the advantages and positive effects of the high-precision sealing weldment automatic centering and clamping device of this utility model are as follows:

[0046] In this invention, coarse and fine adjustments in three directions are achieved through manual coarse adjustment, vertical fine adjustment, and two fine adjustment structures, enabling accurate positioning. The clamping mechanism automatically and accurately clamps the components, resulting in a simple structure, convenient control, high degree of automation, thereby reducing costs and improving production efficiency.

[0047] This embodiment further has the following structural features and effects:

[0048] 1. In this embodiment, the two grippers are made of insulating ceramic material to avoid short circuits during welding. One of the two grippers has a V-shaped positioning groove, and both grippers are pneumatically driven and controlled by a proportional valve, which greatly improves the efficiency and positioning accuracy of the workpiece clamping.

[0049] 2. In this embodiment, a gripper positioning device that combines two-axis precision automatic positioning with single-axis manual adjustment is used. Based on manual coarse adjustment of the single-axis position, a servo motor drive and closed-loop control method are adopted, which can greatly improve the efficiency and positioning accuracy of the weldment position adjustment.

[0050] 3. In this embodiment, a micrometer precision fine-tuning device is used to precisely fine-tune the height of the grippers, which greatly improves the efficiency and accuracy of the device adjustment and ensures the welding quality.

[0051] Those skilled in the art to which this utility model pertains should understand that the specific structures and processes shown in the above detailed embodiments are merely exemplary and not restrictive. Furthermore, those skilled in the art can combine the various technical features described above in various possible ways to form new technical solutions or make other modifications, all of which fall within the scope of this utility model.

Claims

1. An automatic centering and clamping device for high-precision sealing weldments, used for automatically centering and clamping high-precision sealing weldments, characterized in that, include: A manual coarse adjustment mechanism includes a base, a guide rail, a slider, and a positioning structure. The guide rail is mounted on the base, the slider cooperates with the guide rail, and the positioning structure is used to position the slider. A vertical fine-tuning mechanism includes a lower adjusting seat, an upper adjusting seat, an adjusting knob, and a connecting structure. The lower adjusting seat is connected to the slider. The lower part of the adjusting knob abuts against the lower adjusting seat, and the upper part is screwed to the upper adjusting seat. The upper adjusting seat is connected to the connecting structure. The first fine-tuning mechanism includes a first slide base plate, a first sliding adjustment structure and a first driver. The first slide base plate is connected to the connecting structure. The first sliding adjustment structure slides in conjunction with the first slide base plate. The first driver is used to drive the first sliding adjustment structure to move relative to the first slide base plate. The second fine-tuning mechanism includes a second slide base plate, a second sliding adjustment structure, and a second driver. The second slide base plate is connected to the first sliding adjustment structure, and the second sliding adjustment structure slides in conjunction with the second slide base plate. The second driver is used to drive the second sliding adjustment structure to move relative to the second slide base plate. The clamping mechanism includes a parallel opening and closing cylinder, a first support plate, a second support plate, a first clamping jaw, and a second clamping jaw. The fixed part of the parallel opening and closing cylinder is mounted on the second sliding adjustment structure. The first support plate and the second support plate are mounted side by side on the output part of the parallel opening and closing cylinder. The first clamping jaw is connected to the first support plate, and the second clamping jaw is connected to the second support plate. The first clamping jaw and the second clamping jaw are used to clamp the weldment together.

2. The automatic centering and clamping device for high-precision sealing weldments according to claim 1, characterized in that: The positioning structure includes a fixed stop and a movable stop. The fixed stop is mounted on the base, and the movable stop is mounted on the slider. The fixed stop is used to stop the movable stop. The movable stop is fixedly connected to the base in a fixed position via a connector.

3. The automatic centering and clamping device for high-precision sealing weldments according to claim 2, characterized in that: The positioning structure also includes a baffle, which is connected to the open end of the guide rail and protrudes from the upper part of the guide rail.

4. The automatic centering and clamping device for high-precision sealing weldments according to claim 1, characterized in that: The adjustment knob includes a micrometer adjustment mechanism.

5. The automatic centering and clamping device for high-precision sealing weldments according to claim 4, characterized in that: The connection structure includes a lifting slide plate and a locking plate. One side of the lifting slide plate is connected to the upper adjusting seat, and the other side is connected to the first slide base plate. The lifting slide plate slides in conjunction with the lower adjusting seat. The locking plate is connected to the lifting slide plate. When the height of the lifting slide plate is adjusted to the correct position, the locking plate is fixedly connected to the lower adjusting seat through a locking component.

6. The automatic centering and clamping device for high-precision sealing weldments according to claim 1, characterized in that: Both the first sliding adjustment structure and the second sliding adjustment structure include a lead screw nut and a guide module.

7. The automatic centering and clamping device for high-precision sealing weldments according to claim 6, characterized in that: Both the first driver and the second driver are stepper motors.

8. The automatic centering and clamping device for high-precision sealing weldments according to claim 1, characterized in that: The first gripper and / or the second gripper are provided with V-grooves.

9. The automatic centering and clamping device for high-precision sealing weldments according to claim 8, characterized in that: The V-groove is an insulating plate.

10. The automatic centering and clamping device for high-precision sealing weldments according to claim 8 or 9, characterized in that: The parallel opening and closing cylinder is connected to a proportional valve.

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