Printing roller main shaft welding clamp
By designing a welding fixture for the printing roller spindle and utilizing a spring structure to achieve self-adaptive fixing of the roller and roller core, the problem of inconvenient operation caused by the obstruction of the roller core position in traditional welding methods is solved, thereby improving welding accuracy and efficiency, reducing labor intensity and ensuring the stability of welding quality.
Patent Information
- Application Number
- CN202610126310.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-29
- Publication Date
- 2026-03-03
Smart Images

Figure CN121589516A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of welding technology, specifically a welding fixture for the spindle of a printing roller. Background Technology
[0002] Printing rollers are circular, cylindrical printing devices used to transfer images in a printing press, and are a fundamental component of the printing equipment.
[0003] In the prior art, printing rollers generally have a roller core installed inside, which drives the roller to rotate. During the production of printing rollers, a welding device is generally used to connect the roller core and the roller. However, the position of the roller core obstructs the welding device, making the welding operation inconvenient and affecting the welding accuracy and efficiency. In addition, traditional welding methods often require adjusting the relative position of the roller and the roller core, which not only increases the labor intensity but also makes it easy for the welding quality to be unstable due to human factors. Therefore, the present invention provides a welding fixture for the main shaft of a printing roller. Summary of the Invention
[0004] The purpose of this invention is to provide a printing roller spindle welding fixture to solve the problems mentioned in the background art.
[0005] The technical solution of this invention is: a printing roller spindle welding fixture, comprising a support base plate and a roller body. Control side boxes are fixedly connected to both ends of the support base plate. A support bottom box is fixedly connected to the inner side of the support base plate. A limiting bottom ring is fixedly connected to the top of the support bottom box. Side groove plates are fixedly connected to both sides of the support bottom box. A support slider is slidably engaged with the inner side of the limiting bottom ring. A support bottom ring is fixedly connected to the top of the support slider. A ball bearing is provided on the inner side of the support bottom ring. Two mounting blocks are fixedly connected to the bottom of the support slider. Two grooved sliding strips are slidably engaged with the inner side of the side groove plates. A support inclined strip is rotatably connected between the grooved sliding strips and the mounting blocks. A connecting sliding shaft is fixedly connected to the opposite side of the two grooved sliding strips. The grooved sliding strips are further away from the connecting sliding shaft on one side. An inner mounting block is fixedly connected to the end of the roller. The connecting slide shaft is slidably engaged with the inner side of the inner mounting block. A limiting piece is fixedly connected to the end of the connecting slide shaft away from the slide bar in the groove. A compression spring is movably sleeved on the outer side of the connecting slide shaft. A roller core body is installed on the inner side of the roller body. The roller body is placed on top of the support bottom ring, and the roller core body is placed on top of the support concave roller. In use: the roller body is placed inside the support bottom ring, causing the support bottom ring to move down, causing the support inclined bar to rotate, bringing the support inclined bar closer to the inside of the slide bar in the groove, causing the slide bar in the groove to slide inside the side groove plate, causing the two slide bars in the groove to move in opposite directions, pushing the connecting slide shaft to move along the inner mounting block, compressing the compression spring, and bringing the two inner mounting blocks closer to each other, providing power for the top module of the inner mounting block to move closer.
[0006] Preferably, a mounting side frame is fixedly connected to the top of the mounting inner block, an inner slider is slidably engaged with the inner side of the mounting side frame, a guide inner shaft is slidably engaged with the bottom of the inner slider, a support spring is movably sleeved on the outer side of the guide inner shaft, a side clamp is fixedly connected to the top of the inner slider, a support concave roller is rotatably connected to the inner side of the side clamp, a connecting side block is fixedly connected to one side of the inner slider, a groove is formed on one side of the mounting side frame, and the connecting side block is slidably engaged in the groove. A clamping frame is fixedly connected to one end of the slider inside the frame. A clamping slide post is slidably engaged with the inner side of the clamping frame. A clamping guide ring is fixedly connected to the top of the clamping slide post. A clamping bottom shaft is slidably engaged with the inner side of the clamping slide post. A clamping spring is movably sleeved on the outer side of the clamping bottom shaft. A rotating mounting ring is rotatably connected to one side of the clamping guide ring. Four mounting guide cylinders are fixedly connected to the outer side of the rotating mounting ring. A rotating outer ring is fixedly connected to the outer side of the mounting guide cylinders. A rotating buckle is fixedly connected to the outer side of the rotating outer ring. The inner side of the mounting guide cylinder is slidably engaged with a clamping slide shaft, and a fixing spring is installed on the inner side of the mounting guide cylinder. A mounting clamping block is fixedly connected to the end of the clamping slide shaft away from the fixing spring, and an inclined clamping pad is fixedly connected to the top of the mounting clamping block. In use: by bringing the two mounting inner blocks closer together, the two mounting side frames move closer together, causing the sliders inside the frames and the top supporting concave rollers to move closer together, bringing the roller core body closer to the top of the supporting concave rollers. This causes the roller core body to press down on the sliders inside the frames, and the rotating buckle to move downwards, allowing the roller core body to... The top of the clamping ring enters the interior of the clamping guide ring, causing the roller core body to press against the inclined clamping pad. This causes the clamping sliding axis to expand in all directions, and the inclined clamping pad to press against the roller core body, thus fixing the roller core body. By rotating the rotating buckle, the outer rotating ring rotates, causing the roller core body to rotate. This allows the roller body and roller core body to rotate during positioning welding. The fixture uses spring structures such as compression springs, support springs, and fixing springs to self-adaptively fix the roller body and roller core body without damaging them.
[0007] This invention provides an improved welding fixture for the main shaft of a printing roller, which has the following improvements and advantages compared with the prior art: Firstly, the printing roller spindle welding fixture of the present invention places the roller body inside the support bottom ring, causing the support bottom ring to move down, causing the support inclined bar to rotate, causing the support inclined bar to approach the inside of the groove slide bar, causing the groove slide bar to slide inside the side groove plate, causing the two groove slide bars to move in opposite directions, pushing the connecting slide shaft to move along the mounting inner block, causing the compression spring to compress, causing the two mounting inner blocks to approach each other, providing the power for the top module of the mounting inner block to approach; Secondly, the printing roller spindle welding fixture of the present invention, by bringing two mounting inner blocks closer together, brings two mounting side frames closer together, brings the inner slider and the top support concave roller closer together, brings the roller core body closer to the top of the support concave roller, presses down the inner slider of the frame, and moves the rotating buckle down, so that the top of the roller core body enters the interior of the clamping guide ring, so that the roller core body presses against the inclined clamping pad, so that the clamping slide expands in all directions, and the inclined clamping pad presses on the circumference of the roller core body, so that the roller core body is fixed. By rotating the rotating buckle, the rotating outer ring rotates, so that the roller core body rotates. During positioning welding, the roller body and the roller core body can rotate. The fixture uses spring structures such as compression springs, support springs and fixing springs to make the roller body and the roller core body self-adaptively fixed without damaging the roller body and the roller core body. In summary, the printing roller spindle welding fixture of this invention, through its structural design, effectively solves the operational inconvenience caused by the obstruction of the roller core position in traditional welding methods. During use, this fixture achieves precise positioning and stable clamping of the printing roller spindle, significantly improving welding accuracy and efficiency. Simultaneously, its self-adjusting function avoids the tedious steps of manual adjustment, reducing labor intensity and minimizing the impact of human factors on welding quality, ensuring a more stable and reliable welding process. Furthermore, the modular design of this fixture gives it strong versatility, making it suitable for welding printing roller spindles of different specifications, further expanding its application range. Attached Figure Description
[0008] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the supporting base plate structure of the present invention; Figure 3 This is a schematic diagram of the supporting bottom ring structure of the present invention; Figure 4 This is a schematic diagram of the groove slide bar structure of the present invention; Figure 5 This is a schematic diagram of the rotating outer ring structure of the present invention; Figure 6 This is a schematic diagram of the mounting side frame structure of the present invention; Figure 7 This is a schematic diagram of the clamping guide ring structure of the present invention.
[0009] Explanation of reference numerals in the attached figures: 1. Support base plate; 2. Control side box; 3. Support base box; 4. Side groove plate; 5. Roller body; 6. Roller core body; 7. Limiting bottom ring; 8. Support slider; 9. Supporting bottom ring; 10. Mounting clamp; 11. Supporting inclined bar; 12. Inner groove slider; 13. Connecting slide shaft; 14. Compression spring; 15. Mounting inner block; 16. Limiting piece; 17. Mounting side frame; 18. Inner frame slider; 19. Guide. 20. Inner shaft; 21. Support spring; 22. Side clamping plate; 23. Support concave roller; 24. Connecting side block; 25. Rotary buckle; 26. Clamping frame; 27. Clamping slide column; 28. Clamping bottom shaft; 29. Clamping spring; 30. Rotating mounting ring; 31. Mounting guide cylinder; 32. Rotating outer ring; 33. Inclined clamping pad; 34. Clamping slide shaft; 35. Fixing spring; 36. Mounting clamping block. Detailed Implementation
[0010] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0011] This invention provides an improved welding fixture for the main shaft of a printing roller. The technical solution of this invention is as follows: like Figures 1-7As shown, a printing roller spindle welding fixture includes a support base plate 1 and a roller body 5. Control side boxes 2 are fixedly connected to both ends of the support base plate 1. A support base box 3 is fixedly connected to the inner side of the support base plate 1. A limiting bottom ring 7 is fixedly connected to the top of the support base box 3. Side groove plates 4 are fixedly connected to both sides of the support base box 3. A support slider 8 is slidably engaged with the inner side of the limiting bottom ring 7. A support bottom ring 9 is fixedly connected to the top of the support slider 8. A ball bearing is provided on the inner side of the support bottom ring 9. Two mounting clamping blocks 10 are fixedly connected to the bottom of the support slider 8. Two groove sliding strips 12 are slidably engaged with the inner side of the side groove plate 4. A support inclined strip 11 is rotatably connected between the groove sliding strips 12 and the mounting clamping blocks 10. A connecting slide shaft 13 is fixedly connected to the opposite side of the two groove sliding strips 12. An mounting inner block 15 is fixedly connected to the end of the groove sliding strip 12 away from the connecting slide shaft 13. The sliding shaft 13 is slidably engaged with the inner side of the mounting block 15. A limiting piece 16 is fixedly connected to the end of the connecting sliding shaft 13 away from the sliding strip 12 in the groove. A compression spring 14 is movably sleeved on the outer side of the connecting sliding shaft 13. A roller core body 6 is installed on the inner side of the roller body 5. The roller body 5 is placed on the top of the support bottom ring 9, and the roller core body 6 is placed on the top of the support concave roller 22. In use: the roller body 5 is placed inside the support bottom ring 9, causing the support bottom ring 9 to move down, causing the support inclined strip 11 to rotate, causing the support inclined strip 11 to approach the inside of the sliding strip 12 in the groove, causing the sliding strip 12 in the groove to slide inside the side groove plate 4, causing the two sliding strips 12 in the groove to move in opposite directions, pushing the connecting sliding shaft 13 to move along the mounting block 15, causing the compression spring 14 to compress, causing the two mounting blocks 15 to move closer to each other, providing power for the top module of the mounting block 15 to move closer.
[0012] Furthermore, a mounting side frame 17 is fixedly connected to the top of the mounting inner block 15. An inner slider 18 is slidably engaged with the inner side of the mounting side frame 17. A guide inner shaft 19 is slidably engaged with the bottom of the inner slider 18. A support spring 20 is movably sleeved on the outer side of the guide inner shaft 19. A side clamping plate 21 is fixedly connected to the top of the inner slider 18. A support concave roller 22 is rotatably connected to the inner side of the side clamping plate 21. A connecting side block 23 is fixedly connected to one side of the inner slider 18. A groove is provided on one side of the mounting side frame 17, and the connecting side block 23 is slidably engaged in the groove, away from the inner slider 18. One end of the 8 is fixedly connected to a clamping frame 25. A clamping slide post 26 is slidably engaged with the inner side of the clamping frame 25. A clamping guide ring 29 is fixedly connected to the top of the clamping slide post 26. A clamping bottom shaft 27 is slidably engaged with the inside of the clamping slide post 26. A clamping spring 28 is movably sleeved on the outer side of the clamping bottom shaft 27. A rotating mounting ring 30 is rotatably connected to one side of the clamping guide ring 29. Four mounting guide cylinders 31 are fixedly connected to the outer side of the rotating mounting ring 30. A rotating outer ring 32 is fixedly connected to the outer side of the mounting guide cylinder 31. A rotating buckle 24 is fixedly connected to the outer side of the rotating outer ring 32. The inner side of the mounting guide cylinder 31... A clamping slide shaft 34 is slidably engaged with the side slide. A fixing spring 35 is installed on the inner side of the mounting guide cylinder 31. A mounting clamping block 36 is fixedly connected to the end of the clamping slide shaft 34 away from the fixing spring 35. An inclined clamping pad 33 is fixedly connected to the top of the mounting clamping block 36. In use: by bringing the two mounting inner blocks 15 closer together, the two mounting side frames 17 are brought closer together, the inner slider 18 and the top support concave roller 22 are brought closer together, the roller core body 6 is brought closer to the top of the support concave roller 22, the roller core body 6 presses down on the inner slider 18, and the rotating buckle 24 moves down, so that the top of the roller core body 6 enters the frame. Inside the clamping guide ring 29, the roller core body 6 presses against the inclined clamping pad 33, causing the clamping slide shaft 34 to expand in all directions and the inclined clamping pad 33 to press against the roller core body 6, thus fixing the roller core body 6. By rotating the rotating buckle 24, the rotating outer ring 32 rotates, causing the roller core body 6 to rotate. During positioning welding, the roller body 5 and the roller core body 6 can be rotated. This fixture uses spring structures such as the compression spring 14, the support spring 20, and the fixing spring 35 to self-adaptively fix the roller body 5 and the roller core body 6 without damaging them.
[0013] Working principle: In use: Place the roller body 5 inside the support bottom ring 9, causing the support bottom ring 9 to move downwards, causing the support inclined bar 11 to rotate, bringing the support inclined bar 11 closer to the inside of the groove slide bar 12, allowing the groove slide bar 12 to slide inside the side groove plate 4, causing the two groove slide bars 12 to move in opposite directions, pushing the connecting slide shaft 13 to move along the mounting inner block 15, causing the compression spring 14 to compress, bringing the two mounting inner blocks 15 closer together, providing power for the top module of the mounting inner blocks 15 to move closer together, and through the approach of the two mounting inner blocks 15, the two mounting side frames 17 move closer together, causing the inner slider 18 and the top support concave roller 22 to move closer together, and bringing the roller core body 6 closer to the support concave roller 22. At the top, the roller core body 6 is pressed down by the slider 18 inside the frame, and the rotating buckle 24 is moved down, so that the top of the roller core body 6 enters the interior of the clamping guide ring 29, so that the roller core body 6 presses against the inclined clamping pad 33, so that the clamping sliding shaft 34 expands in all directions, and so that the inclined clamping pad 33 presses against the four sides of the roller core body 6, thus fixing the roller core body 6. By rotating the rotating buckle 24, the rotating outer ring 32 rotates, so that the roller core body 6 rotates. During positioning welding, the roller body 5 and the roller core body 6 can rotate. The fixture uses spring structures such as the compression spring 14, the support spring 20 and the fixing spring 35 to make the roller body 5 and the roller core body 6 self-adaptively fixed without damaging the roller body 5 and the roller core body 6.
[0014] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A printing roller spindle welding fixture, comprising a support base plate (1) and a roller body (5), characterized in that: The support base plate (1) is fixedly connected to two ends of a control side box (2), and a support base box (3) is fixedly connected to the inner side of the support base plate (1). A limiting bottom ring (7) is fixedly connected to the top of the support base box (3). Side groove plates (4) are fixedly connected to both sides of the support base box (3). A support slider (8) is slidably engaged with the inner side of the limiting bottom ring (7). A support bottom ring (9) is fixedly connected to the top of the support slider (8). A ball bearing is provided on the inner side of the support bottom ring (9). Two mounting clamps (10) are fixedly connected to the bottom of the support slider (8). Two groove slide strips (12) are slidably engaged with the inner side of the side groove plate (4). A support inclined strip (11) is rotatably connected between the groove slide strip (12) and the mounting clamp (10).
2. The printing roller spindle welding fixture according to claim 1, characterized in that: Two groove slide bars (12) are fixedly connected to a connecting slide shaft (13) on opposite sides. The end of the groove slide bar (12) away from the connecting slide shaft (13) is fixedly connected to an inner mounting block (15). The connecting slide shaft (13) is slidably engaged with the inner side of the inner mounting block (15). The end of the connecting slide shaft (13) away from the groove slide bar (12) is fixedly connected to a limiting piece (16). A compression spring (14) is movably sleeved on the outer side of the connecting slide shaft (13).
3. The printing roller spindle welding fixture according to claim 2, characterized in that: The top of the mounting inner block (15) is fixedly connected to the mounting side frame (17), the inner side of the mounting side frame (17) is slidably engaged with the inner slider (18), the bottom of the inner slider (18) is slidably engaged with the guide inner shaft (19), the outer side of the guide inner shaft (19) is movably sleeved with the support spring (20), the top of the inner slider (18) is fixedly connected with the side clamp (21), and the inner side of the side clamp (21) is rotatably connected with the support concave roller (22).
4. The printing roller spindle welding fixture according to claim 3, characterized in that: A connecting side block (23) is fixedly connected to one side of the inner slider (18) of the frame. A sliding groove is provided on one side of the mounting side frame (17). The connecting side block (23) is slidably engaged in the sliding groove. A clamping frame (25) is fixedly connected to one end of the connecting side block (23) away from the inner slider (18). A clamping slide post (26) is slidably engaged on the inner side of the clamping frame (25). A clamping guide ring (29) is fixedly connected to the top of the clamping slide post (26). A clamping bottom shaft (27) is slidably engaged inside the clamping slide post (26). A clamping spring (28) is movably sleeved on the outer side of the clamping bottom shaft (27).
5. A printing roller spindle welding fixture according to claim 4, characterized in that: A rotating mounting ring (30) is rotatably connected to one side of the clamping guide ring (29). Four mounting guide cylinders (31) are fixedly connected to the outside of the rotating mounting ring (30). A rotating outer ring (32) is fixedly connected to the outside of the mounting guide cylinder (31). A rotating buckle (24) is fixedly connected to the outside of the rotating outer ring (32).
6. A printing roller spindle welding fixture according to claim 5, characterized in that: The inner side of the mounting guide tube (31) is slidably engaged with a clamping slide shaft (34), and a fixing spring (35) is installed on the inner side of the mounting guide tube (31). The end of the clamping slide shaft (34) away from the fixing spring (35) is fixedly connected to a mounting clamping block (36), and the top of the mounting clamping block (36) is fixedly connected to an inclined clamping pad (33).
7. A printing roller spindle welding fixture according to claim 3, characterized in that: The inner side of the roller body (5) is equipped with a roller core body (6), the roller body (5) is placed on the top of the support bottom ring (9), and the roller core body (6) is placed on the top of the support concave roller (22).