Fixing tool for welding upper cross beam of press
By designing a fixed fixture for the upper beam of the press, and using cylinders to drive the lifting platform and screws to control the movement of the clamping plate, the problems of cumbersome and low-precision welding operations of the upper beam of the traditional press are solved, and the stability and precision of the welding process are improved.
Patent Information
- Application Number
- CN202520316798.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The traditional press upper beam welding process is cumbersome, has poor welding stability, and low welding precision. A simplified fixed tooling is needed to improve stability and precision.
A fixture comprising a base, a lifting platform, a clamping plate, a lead screw, and a cylinder is designed. The lifting platform is driven to rise and fall by the cylinder, and the movement of the clamping plate and the slide is controlled by the lead screw, thereby achieving rapid fixing and secondary adjustment of the upper crossbeam and ensuring the accuracy and stability of the welding position.
This enabled rapid fixing and secondary adjustment of the upper crossbeam, improving the stability and precision of the welding process and ensuring welding quality.
Smart Images

Figure CN223762551U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding fixture technology, and in particular to a fixing fixture for welding the upper beam of a press. Background Technology
[0002] The main body of the press is usually a frame structure, consisting of an upper crossbeam, columns, and a lower crossbeam. The columns are connected to the upper and lower crossbeams by positioning rings and are pre-tightened by tension bolts to improve overall rigidity.
[0003] Currently, before welding operations in press assembly, it is often necessary to pre-assemble the upper crossbeam to ensure that it is fixed in a specific position, preventing it from moving, deforming, or shaking during welding, and ensuring welding quality. Traditional assembly methods often involve using cranes or other hoisting equipment to lift the crossbeam, and then manually positioning and welding it with tools. This process is cumbersome, has poor welding stability, and cannot guarantee welding accuracy. Therefore, there is an urgent need for a fixing fixture for welding the upper crossbeam of the press. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a fixed fixture for welding the upper beam of a press.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fixed fixture for welding the upper beam of a press includes a base, a lifting platform is installed on the upper part of the base by a pair of guide columns, a pair of clamping plates are provided on one side of the middle part of the lifting platform, the inner wall of the clamping plates is provided with rubber pads to improve friction, and an adjustment plate is provided on the upper part away from the lifting platform.
[0007] A lead screw is installed on one side of the lifting platform. The lead screw is screwed to each clamping plate and the rotation of the screw controls the movement of each clamping plate towards the other.
[0008] A second lead screw is installed on the side away from the first lead screw. The second lead screw is screwed to a pair of slides. The slides are limited and installed on the upper side of the lifting platform. A connecting rod is rotatably connected to the slides. The other end of the connecting rod is rotatably connected to the bottom of the adjusting plate.
[0009] In addition, a preferred structure is that an anti-collision block is provided on one side of the base, and the anti-collision block protrudes from the outer wall of the base.
[0010] In addition, a preferred structure is that a control panel is provided on one side of the middle part of the base, and the control panel controls the extension and retraction of the cylinder component.
[0011] In addition, a preferred structure is that a cylinder is installed on one side of the base, and the telescopic end of the cylinder is connected to one side of the lifting platform.
[0012] In addition, a preferred structure is that one end of the lifting platform and the adjusting plate is limited and installed on the guide column.
[0013] In addition, a preferred structure is that a "C"-shaped slot is provided on one side of the lifting platform to fit the column frame, and a limiting groove is provided on one side of the inner wall of the slot. A clamping plate is fitted in the limiting groove, and one end of the clamping plate is screwed to the lead screw.
[0014] In addition, a preferred structure is that an installation groove is provided on one side of the upper part of the lifting platform, a slide is installed in the installation groove, and a second lead screw is assembled in the installation groove, which is screwed to the slide.
[0015] Furthermore, in a preferred configuration, both lead screw component one and lead screw component two are configured with double-ended opposing threads, with the helical directions of the threads at both ends being opposite.
[0016] The beneficial effects of this utility model are as follows:
[0017] In this invention, the lifting platform can quickly support the upper crossbeam and fix it to the corresponding installation position through the cylinder component. At the same time, the screw component one drives the clamping plate to clamp and connect with the column frame to improve the overall stability of the device, thereby improving the stability of the operation process. Furthermore, the screw component two, in conjunction with the slide, connecting rod and other linkage components, drives the adjustment plate to lift and lower, realizing the secondary adjustment function of the upper crossbeam, improving the accuracy of the welding position and ensuring the stability of the welding process. Attached Figure Description
[0018] Figure 1 This utility model provides a schematic diagram of the external structure of a fixing fixture for welding the upper beam of a press. Figure 1 ;
[0019] Figure 2 This utility model provides a schematic diagram of the external structure of a fixing fixture for welding the upper beam of a press. Figure 2 ;
[0020] Figure 3 This is a schematic diagram of the lifting platform assembly structure proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of the clamp assembly structure proposed in this utility model;
[0022] Figure 5 This is a schematic diagram of the internal structure of the lifting platform proposed in this utility model;
[0023] Figure 6 The diagram shows the structure of lead screw component one and lead screw component two proposed in this utility model.
[0024] In the diagram: 1. Base, 2. Anti-collision block, 3. Cylinder component, 4. Guide column, 5. Lifting platform, 6. Adjusting plate, 7. Clamping plate, 71. Rubber pad, 8. Lead screw component one, 9. Lead screw component two, 10. Control panel, 11. Limit groove, 12. Mounting groove, 13. Double-ended opposing thread, 14. Slide seat, 15. Connecting rod. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] Reference Figure 1-6 A fixed fixture for welding the upper beam of a press includes a base 1. A lifting platform 5 is installed on the upper part of the base 1 by a pair of guide columns 4. A pair of clamping plates 7 are provided on one side of the middle part of the lifting platform 5. Rubber pads 71 are provided on the inner wall of the clamping plates 7 to improve friction. An adjusting plate 6 is provided on the upper part away from the lifting platform 5.
[0027] A lead screw 8 is installed on one side of the lifting platform 5. The lead screw 8 is screwed to each clamping plate 7 and the screw rotation controls the movement of each clamping plate 7 towards each other, thereby clamping the column frame.
[0028] A second lead screw 9 is installed on the side away from the first lead screw 8. The second lead screw 9 is screwed to a pair of slides 14. The slides 14 are limited and installed on the upper side of the lifting platform 5. A connecting rod 15 is rotatably connected to the slides 14. The other end of the connecting rod 15 is rotatably connected to the bottom of the adjusting plate 6.
[0029] A collision protection block 2 is provided on one side of the base 1. The collision protection block 2 protrudes from the outer wall of the base 1 and fits against the column frame to improve stability.
[0030] A control panel 10 is provided on one side of the middle part of the base 1. The control panel 10 controls the extension and retraction of the cylinder component 3.
[0031] A cylinder component 3 is installed on one side of the base 1, and the telescopic end of the cylinder component 3 is connected to one side of the lifting platform 5.
[0032] The lifting platform 5 and the adjusting plate 6 are limited at one end and installed on the guide column 4.
[0033] A "C"-shaped slot is provided on one side of the lifting platform 5 to fit the column frame, and a limiting slot 11 is provided on one side of the inner wall of the slot. A clamping plate 7 is installed in the limiting slot 11, and one end of the clamping plate 7 is screwed to the lead screw 8.
[0034] The upper side of the lifting platform 5 is provided with an installation groove 12. A slide 14 is installed in the installation groove 12 and a second lead screw 9 is assembled in the installation groove 12. The second lead screw 9 is screwed to the slide 14. Both the first lead screw 8 and the second lead screw 9 are set with double-headed opposing threads 13. The helical directions of the threads at both ends are set in opposite directions, so as to realize that the threaded components can move in opposite directions.
[0035] Among them, cylinder component 3 is connected to an external air source mechanism to ensure its normal operation.
[0036] In this embodiment, the fixing fixture is placed on one side of the press column frame, and the device is gradually brought closer to the column frame so that the anti-collision block 2 fits against the column. Then, the cylinder 3 is controlled to extend and retract through the control panel 10, thereby driving the lifting platform 5 to rise and lift the bottom of the upper crossbeam, so that it is fixed in the corresponding position. Then, the screw rod 8 is rotated to drive the clamping plate 7 to clamp the column frame, thereby improving the overall stability of the device. At the same time, the two slide blocks 14 can be moved towards each other by rotating the screw rod 9, and the connecting rod 15 can be deflected, thereby raising the adjusting plate 6 to achieve secondary fine adjustment of the upper crossbeam.
[0037] The lifting plate 5 and the adjusting plate 6 achieve movement stability through the guide column 4.
[0038] Among them, a hand crank is provided at one end of the first lead screw component 8 and the second lead screw component 9 to improve the ease of use; the first lead screw component 8 and the second lead screw component 9 are provided with double-headed opposing threads 13, that is, the two ends of the first lead screw component 8 and the second lead screw component 9 are provided with threads in opposite helical directions, thereby realizing the opposite movement of the clamping plate 7 and the opposite movement of the slide block 14.
[0039] During the adjustment of the upper crossbeam, the cylinder component 3 can quickly support the upper crossbeam and fix it to the installation position, and the screw component 9 can adjust the adjusting plate 6, thereby realizing the function of secondary adjustment, ensuring the accuracy of the welding position of the upper crossbeam and the stability of the welding process.
[0040] The specific frame welding process not explained in detail above is common knowledge to those skilled in the art and will not be explained further.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fixing tool for the welding of a press upper beam, comprising a base (1), characterized in that, The upper part of the base (1) is limitedly installed with a lifting platform (5) through a pair of guide columns (4), one side of the middle part of the lifting platform (5) is provided with a pair of clamping plates (7), the inner wall of the clamping plate (7) is provided with a rubber pad (71) to improve the friction, and the upper part away from the lifting platform (5) is provided with an adjusting plate (6); One side of the lifting platform (5) is installed with a lead screw piece one (8), the lead screw piece one (8) is screwed with each clamping plate (7), and the screw rotation controls the opposite movement of each clamping plate (7); One side away from the lead screw piece one (8) is installed with a lead screw piece two (9), the lead screw piece two (9) is screwed with a pair of sliding seats (14), the sliding seat (14) is limitedly installed on one side of the upper part of the lifting platform (5), and the sliding seat (14) is rotatably connected with a connecting rod (15), the other end of the connecting rod (15) is rotatably connected with the bottom of the adjusting plate (6).
2. A fixture for welding the upper beam of a press according to claim 1, characterized in that, One side of the base (1) is provided with a bumper block (2), the bumper block (2) protrudes from the outer wall of the base (1).
3. The fixture for welding the upper beam of a press according to claim 1, wherein One side of the base (1) is provided with a control panel (10), the control panel (10) controls the telescopic movement of the cylinder piece (3).
4. The fixture for welding the upper beam of a press according to claim 1, wherein One side of the base (1) is installed with a cylinder piece (3), the telescopic end of the cylinder piece (3) is connected with one side of the lifting platform (5).
5. The fixture for welding the upper beam of a press according to claim 1, wherein One end of the lifting platform (5) and the adjusting plate (6) is limitedly installed on the guide column (4).
6. A fixture for welding the cross beam of a press according to claim 1, characterized in that, One side of the lifting platform (5) is provided with a "C" type notch to fit the column frame, and a limiting groove (11) is formed on one side of the inner wall of the notch, the clamping plate (7) is limitedly assembled in the limiting groove (11), and one end of the clamping plate (7) is screwed with the lead screw piece one (8).
7. The fixture of claim 1, wherein: One side of the upper part of the lifting platform (5) is provided with a mounting groove (12), the sliding seat (14) is limitedly installed in the mounting groove (12), and the lead screw piece two (9) is assembled in the mounting groove (12), and the lead screw piece two (9) is screwed with the sliding seat (14).
8. The fixture for welding the upper beam of a press according to claim 1, wherein The lead screw piece one (8) and the lead screw piece two (9) are both provided with double-head opposite threads (13), and the thread screw directions of the two ends are oppositely arranged.