Square shaft upper and lower clamping plate rapid positioning and pressing spot welding tool

Abstract

The utility model relates to the technical field of square shafts, in particular to a square shaft upper clamping plate and lower clamping plate quick positioning and pressing spot welding tool which comprises a fixing plate, a threaded sleeve and an anti-skid plate, connecting plates are welded to the two sides of the top of the fixing plate, and first bearings are installed on the two connecting plates in an embedded mode. Two bearings I are fixedly mounted on the top of the fixing plate, screw rods are fixedly mounted on inner rings of the two bearings I, the two screw sleeves are in meshed connection with the two screw rods respectively, retainers are mounted at the tops of the two screw sleeves, fixing blocks are mounted on the inner sides of the two retainers, and fixing sleeves are mounted at the tops of the fixing plates on the opposite sides of the two screw sleeves. A third bearing is embedded in the fixing sleeve, two supporting plates are symmetrically welded to the fixing plate, positioning plates are welded to the opposite sides of the two supporting plates, screw holes are formed in the positioning plates, and screw rods are in threaded connection with the inner walls of the screw holes. The clamp has the advantages that the height of the clamp can be adjusted according to the size of the square shaft, the square shaft can be quickly clamped and positioned, and the fixing time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of square shafts, in particular to a fast positioning, pressing and spot welding tool for upper and lower clamping plates of a square shaft. Background Art

[0002] Square shafts are commonly used in mechanical engineering. They are shafts with a square cross-section. Such shafts are usually designed with four equal or approximately equal sides to provide better torsional resistance and stability. Square shafts can be used in many applications, such as transmission systems, mixing equipment, and other mechanical devices that need to transmit torsional forces.

[0003] Currently, when workers position and fix square shafts that require electric welding, they need to manually adjust the position of the positioning tooling according to the size of the square shaft. This is not only cumbersome to operate, but also takes a long time, affecting the efficiency of electric welding. Utility Model Content

[0004] The purpose of the utility model is to provide a fast positioning and pressing spot welding tool for the upper and lower clamps of a square shaft, which has the advantages of being able to adjust its height according to the size of the square shaft, and quickly clamping and positioning the square shaft, reducing the fixing time, and solving the problem of troublesome positioning and fixing operations of the electric welded square shaft by the staff.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick positioning and pressing spot welding tool for the upper and lower clamps of a square shaft, comprising a fixing plate, a screw sleeve and an anti-skid plate, connecting plates are welded on both sides of the top of the fixing plate, the two connecting plates are embedded and installed with bearing one, the two inner rings of the two bearings are fixedly installed with a screw rod, the two screw sleeves are respectively engaged with the two screw rods, the tops of the two screw sleeves are installed with a retaining frame, the inner sides of the two retaining frames are installed with a fixing block, the tops of the fixing plates on the opposite sides of the two screw sleeves are installed with a fixing sleeve, the fixing sleeve is embedded and installed with bearing three, the fixing plate has two support plates symmetrically welded thereon, and the two support plates have a positioning plate welded on the opposite side, the positioning plate is provided with a screw hole, and the inner wall of the screw hole is threadedly connected with a screw rod.

[0006] When using the upper and lower clamps of a square shaft in the present technical solution to quickly position and clamp the spot welding tool, the fixed plate is moved to the appropriate position through the casters. The handwheel is used to rotate the screw, and the screw rotates and moves in the screw hole of the positioning plate. The screw drives the anti-slip plate to descend, so that the anti-slip plate contacts the ground, increasing the friction with the ground. The square shaft is placed on the two brackets on the top of the load-bearing plate, and the hydraulic cylinder pushes the load-bearing plate to rise. After the square shaft above the load-bearing plate is adjusted to the appropriate height, the servo motor drives the two screw rods to rotate through the transmission structure, and the two screw sleeves move on the two rotating screw rods. The two screw sleeves drive the two retaining frames to move in relative directions. The fixed blocks on the inside of the two retaining frames contact the two ends of the square shaft to clamp the square shaft.

[0007] Preferably, the two screw rods are fixedly connected at opposite ends to the inner ring of the bearing, and the outer threads of the two screw rods are arranged in opposite directions. When one screw rod rotates, it drives the other screw rod to rotate, and the two screw rods can rotate synchronously. When the two screw rods rotate, the two threaded sleeves move in opposite or relative directions on the two screw rods.

[0008] Preferably, a servo motor is installed on the side of the fixing plate, and the servo motor transmission structure is fixedly connected to the screw rod on one side of the top of the fixing plate. The servo motor drives the screw rod to rotate through the transmission structure.

[0009] Preferably, a slider is installed at the bottom of each of the two screw sleeves, and two sliding grooves are symmetrically opened on the top of the fixed plate, and the two sliders are slidably connected to the two sliding grooves. The two sliders provide support for the two screw sleeves. When the two screw sleeves move on the two screw rods, the two sliders slide in the two sliding grooves to prevent the two screw sleeves from shaking.

[0010] Preferably, a hydraulic cylinder is installed on the top of the fixing sleeve, a bearing plate is installed on the top of the hydraulic cylinder, and brackets are welded on both sides of the top of the bearing plate. The square shaft is placed on the two brackets on the top of the bearing plate, and the hydraulic cylinder pushes the bearing plate up to adjust the height of the square shaft.

[0011] Preferably, the top of the anti-slide plate is provided with a second bearing, the bottom of the screw is fixedly connected to the inner ring of the second bearing, and the top of the screw is provided with a hand wheel. The screw is movably connected to the anti-slide plate through the second bearing, and the hand wheel can be used to rotate the screw.

[0012] Preferably, a movable rod is installed on the top of the anti-slide plate, and a movable hole is opened on the positioning plate, and the top of the movable rod passes through the movable hole. The movable rod limits the anti-slide plate, and when the anti-slide plate is raised or lowered, the movable rod moves in the movable hole to reduce the shaking of the anti-slide plate.

[0013] Preferably, casters are symmetrically mounted on the bottom of the two support plates, so that the fixed plates can be easily moved.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model provides a carrying plate and a fixing block, and places the square shaft on the two brackets on the top of the carrying plate. The hydraulic cylinder pushes the carrying plate to rise. After the square shaft above the carrying plate is adjusted to a suitable height, the servo motor drives the two screw rods to rotate through the transmission structure, and the two screw sleeves move on the two rotating screw rods. The two screw sleeves drive the two retaining frames to move in relative directions. The fixing blocks on the inner sides of the two retaining frames contact the two ends of the square shaft to clamp and fix the square shaft, thereby achieving the effect of adjusting the height of the square shaft according to its size, quickly clamping and positioning the square shaft, and reducing the fixing time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first angle;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second angle;

[0018] Figure 3 This is a schematic diagram of the positioning plate and anti-skid plate structure of the utility model;

[0019] Figure 4 This is a structural schematic diagram of the fixing sleeve and the bearing plate of the utility model.

[0020] In the figure: 1. caster; 2. support plate; 3. fixed plate; 4. connecting plate; 5. bearing 1; 6. screw; 7. retaining frame; 8. fixing block; 9. screw sleeve; 10. bracket; 11. load-bearing plate; 12. hydraulic cylinder; 13. fixing sleeve; 14. servo motor; 15. slide; 16. slider; 17. positioning plate; 18. anti-skid plate; 19. bearing 2; 20. movable rod; 21. bearing 3; 22. movable hole; 23. screw; 24. handwheel; 25. screw hole. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] like Figures 1-4As shown, the utility model proposes a square shaft upper and lower clamping plate quick positioning and pressing spot welding fixture, including a fixed plate 3, a screw sleeve 9 and an anti-skid plate 18, connecting plates 4 are welded on both sides of the top of the fixed plate 3, two connecting plates 4 are embedded and installed with bearings 5, the inner rings of the two bearings 5 ​​are fixedly installed with screw rods 6, the two screw sleeves 9 are respectively engaged with the two screw rods 6, and the bottoms of the two screw sleeves 9 are installed with sliders 16. Two slide grooves 15 are symmetrically provided on the top of the fixed plate 3, and the two sliders 16 are slidably connected to the two slide grooves 15. The tops of the two screw sleeves 9 are installed with retaining frames 7, and the inner sides of the two retaining frames 7 are installed with fixed blocks 8. A fixed sleeve 13 is installed on the top of the fixed plate 3 on the opposite side of the two screw sleeves 9. The fixed sleeve 13 is embedded and installed with bearing three 21, and the opposite ends of the two screw rods 6 are It is fixedly connected to the inner ring of bearing three 21, and the outer threads of the two screw rods 6 are distributed in opposite directions. A servo motor 14 is installed on the side of the fixed plate 3. The transmission structure of the servo motor 14 is fixedly connected to the screw rod 6 on one side of the top of the fixed plate 3. A hydraulic cylinder 12 is installed on the top of the fixed sleeve 13, and a bearing plate 11 is installed on the top of the hydraulic cylinder 12. Brackets 10 are welded on both sides of the top of the bearing plate 11. Two support plates 2 are symmetrically welded on the fixed plate 3. Positioning plates 17 are welded on the opposite sides of the two support plates 2. The positioning plate 17 is provided with a screw hole 25. The inner wall of the screw hole 25 is threadedly connected with a screw rod 23. A bearing two 19 is installed on the top of the anti-skid plate 18. The bottom of the screw rod 23 is fixedly connected to the inner ring of the bearing two 19. A hand wheel 24 is installed on the top of the screw 23. Casters 1 are symmetrically installed on the bottom of the two support plates 2.

[0027] In this embodiment, the fixed plate 3 is moved to a suitable position through the caster 1, and the hand wheel 24 is used to rotate the screw 23. The screw 23 rotates and moves in the screw hole 25 of the positioning plate 17. The screw 23 drives the anti-slip plate 18 to descend, so that the anti-slip plate 18 contacts the ground, increasing the friction with the ground, and the square shaft is placed on the two brackets 10 on the top of the supporting plate 11. The hydraulic cylinder 12 pushes the supporting plate 11 to rise. After the square shaft above the supporting plate 11 is adjusted to a suitable height, the servo motor 14 drives the two screw rods 6 to rotate through the transmission structure, and the two screw sleeves 9 move on the two rotating screw rods 6. The two screw sleeves 9 drive the two retaining frames 7 to move in relative directions. The fixed blocks 8 on the inner sides of the two retaining frames 7 contact the two ends of the square shaft to clamp the square shaft.

[0028] Example 2

[0029] like Figures 1-4 As shown, the utility model proposes a quick positioning, clamping and spot welding tool for the upper and lower clamps of a square shaft. Compared with the first embodiment, this embodiment also includes: a movable rod 20 and a movable hole 22. The movable rod 20 is installed on the top of the anti-slip plate 18, and the positioning plate 17 is provided with a movable hole 22. The top of the movable rod 20 passes through the movable hole 22.

[0030] In this embodiment, the anti-slide plate 18 is limited by the movable rod 20 . When the anti-slide plate 18 is raised or lowered, the movable rod 20 moves in the movable hole 22 to reduce the shaking of the anti-slide plate 18 .

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fixture for quickly positioning and pressing spot welding upper and lower clamps of a square shaft, comprising a fixing plate (3), a screw sleeve (9) and an anti-slip plate (18), characterized in that: The top of the fixing plate (3) is welded with connecting plates (4) on both sides, and the two connecting plates (4) are embedded with bearings (5). The inner rings of the two bearings (5) are fixed with screw rods (6). The two screw sleeves (9) are respectively engaged with the two screw rods (6). The tops of the two screw sleeves (9) are installed with retaining frames (7). The inner sides of the two retaining frames (7) are installed with fixed blocks (8). The tops of the fixing plates (3) on the opposite sides of the two screw sleeves (9) are installed with fixing sleeves (13). The fixing sleeves (13) are embedded with bearings (21). The fixing plates (3) are symmetrically welded with two supporting plates (2). The opposite sides of the two supporting plates (2) are welded with positioning plates (17). The positioning plates (17) are provided with screw holes (25). The inner walls of the screw holes (25) are threadedly connected with screw rods (23).

2. A fixture for quickly positioning, pressing, and spot welding upper and lower clamping plates of a square shaft according to claim 1, characterized in that: The opposite ends of the two screw rods (6) are fixedly connected to the inner ring of the bearing three (21), and the outer threads of the two screw rods (6) are distributed in opposite directions.

3. The quick positioning, pressing and spot welding fixture for upper and lower clamping plates of a square shaft according to claim 1 is characterized in that: A servo motor (14) is installed on the side of the fixed plate (3), and the transmission structure of the servo motor (14) is fixedly connected to the screw rod (6) on one side of the top of the fixed plate (3).

4. The fixture for quickly positioning, pressing, and spot welding upper and lower clamping plates of a square shaft according to claim 1, characterized in that: The bottoms of the two screw sleeves (9) are both provided with sliders (16), the top of the fixed plate (3) is symmetrically provided with two slide grooves (15), and the two sliders (16) and the two slide grooves (15) are slidably connected.

5. The fixture for quickly positioning, pressing, and spot welding the upper and lower clamping plates of a square shaft according to claim 1, characterized in that: A hydraulic cylinder (12) is installed on the top of the fixing sleeve (13), a bearing plate (11) is installed on the top of the hydraulic cylinder (12), and brackets (10) are welded on both sides of the top of the bearing plate (11).

6. The fixture for quickly positioning, pressing, and spot welding upper and lower clamping plates of a square shaft according to claim 1, characterized in that: The top of the anti-slide plate (18) is equipped with a second bearing (19), the bottom of the screw rod (23) is fixedly connected to the inner ring of the second bearing (19), and the top of the screw rod (23) is equipped with a hand wheel (24).

7. The fixture for quickly positioning, pressing, and spot welding upper and lower clamping plates of a square shaft according to claim 6, characterized in that: A movable rod (20) is installed on the top of the anti-slide plate (18), a movable hole (22) is opened on the positioning plate (17), and the top of the movable rod (20) passes through the movable hole (22).

8. The fixture for quickly positioning, pressing, and spot welding upper and lower clamping plates of a square shaft according to claim 6, characterized in that: Casters (1) are symmetrically mounted on the bottoms of the two support plates (2).

Images