A fixing device for drilling holes in a cylinder

Abstract

This utility model relates to the technical field of cylinder fixing equipment, specifically a fixing device for drilling cylinders. The fixing device includes a base frame, a clamping mold, and a lifting mechanism. The clamping mold is fixedly mounted on the base frame. The lifting mechanism includes two lifting seats slidably mounted on the base frame and located on both sides of the clamping mold. Each lifting seat has multiple rotating and moving components spaced apart. The rotating components include two rotating wheels rotatably mounted on the lifting seat and sliding relative to each other. The moving components include a roller rotatably mounted on the lifting seat and two moving wheels symmetrically mounted on the roller. Through the cooperation of the rotating and moving components, the clamping mold grips the cylinder, keeping the cylinder fixed and precisely fixed. The position of the cylinder does not change during subsequent drilling operations, thereby improving the accuracy and quality of subsequent drilling.

Description

Technical Field

[0001] This utility model relates to the field of cylinder fixing equipment technology, specifically to a fixing equipment for drilling holes in cylinders. Background Technology

[0002] Currently, in the cylinder manufacturing industry, there are situations where drilling from the inside of the cylinder is necessary. With a suitable cylinder diameter, personnel can enter the interior and use handheld drilling equipment. Before drilling, the cylinder needs to be positioned; however, if the cylinder's position is not precisely fixed, the drilling accuracy and quality will be inconsistent. Therefore, there is an urgent need for a fixing device for drilling cylinders to solve the above problems. Utility Model Content

[0003] To address the technical problem that pre-drilling of a cylinder requires precise positioning of the cylinder, which can lead to inconsistent drilling accuracy and quality if the cylinder's position cannot be accurately fixed, this invention provides a fixing device for drilling cylinders. Through the cooperation of a rotating component and a moving component, a clamping mold holds the cylinder tightly, keeping the cylinder stationary. This precise fixing of the cylinder ensures that its position does not change during subsequent drilling operations, thereby improving the accuracy and quality of subsequent drilling.

[0004] This utility model provides a fixing device for drilling cylinders, including a base frame, a clamping mold, and a lifting mechanism. The clamping mold is fixedly mounted on the base frame. The lifting mechanism includes two lifting seats, which are slidably mounted on the base frame and located on both sides of the clamping mold. Each lifting seat is provided with a plurality of rotating components and moving components distributed at intervals. The rotating components include two rotating wheels rotatably mounted on the lifting seat and sliding relative to each other. The moving components include a roller rotatably mounted on the lifting seat and two moving wheels symmetrically mounted on the roller.

[0005] Furthermore, the lifting mechanism also includes two lifting structures located below the two lifting seats, each used to drive one lifting seat to slide up and down. Each lifting structure includes a lifting motor and two screw jacks fixedly mounted on the base frame. The output shaft of the lifting motor is fixedly connected to a steering gear, the steering gear is fixedly connected to one end of two connecting shafts, and the other ends of the two connecting shafts are fixedly connected to the power input ends of the two screw jacks. The screws of the two screw jacks are rotatably connected to one lifting seat. When the lifting motor starts, it drives the steering gear and connecting shafts to rotate, thereby causing the screws of the screw jacks to move up or down. When the screws of the screw jacks slide upward, they drive the lifting seat to slide upward; conversely, when the screws of the screw jacks slide downward, they drive the lifting seat to slide downward.

[0006] Furthermore, each of the lifting structures also includes multiple telescopic guide rods fixedly mounted on the base frame, with the tops of each telescopic guide rod fixedly connected to a lifting seat. Each telescopic guide rod includes a fixed sleeve fixedly mounted on the base frame and a movable guide post slidably mounted on the fixed sleeve, the movable guide post being rotatably connected to the lifting seat. The telescopic guide rods further support the lifting seat, ensuring greater stability when the lifting seat slides up and down.

[0007] Furthermore, the rotating assembly also includes a fixed groove, a rotating lead screw, and a displacement motor. The fixed groove is fixedly mounted on the lifting seat, the rotating lead screw is rotatably mounted inside the fixed groove, and the displacement motor is fixedly mounted outside the fixed groove. The output shaft of the displacement motor is fixedly connected to the end of the rotating lead screw via a first reducer and drives it to rotate. Two lead screw sliders are slidably mounted on the rotating lead screw. Two guide plates are slidably mounted on the top of the fixed groove, and the two guide plates are respectively fixedly connected to the two lead screw sliders. The two rotating wheels are rotatably mounted on the two guide plates. When the displacement motor starts, it drives the rotating lead screw to rotate. Since the guide plates are in contact with the top of the fixed groove, the two lead screw sliders actually slide relative to each other on the rotating lead screw, causing the two guide plates to slide relative to each other on the top of the fixed groove. Ultimately, the two rotating wheels move closer together or further apart.

[0008] Furthermore, each of the rotating lead screws is provided with a first threaded section and a second threaded section with opposite threads. The two lead screw sliders are located on the first threaded section and the second threaded section respectively and are threadedly connected to them. When the displacement motor is started, it drives the rotating lead screw to rotate. Since the guide plate is in contact with the top of the fixed groove, the two lead screw sliders actually slide back and forth on the first threaded section and the second threaded section respectively.

[0009] Furthermore, the moving assembly also includes a fixed support and two fixed plates fixedly mounted on the lifting base. The idler roller is rotatably mounted on the two fixed plates. A transmission rod is rotatably mounted on the fixed support. One end of the transmission rod is fixedly connected to the end of the idler roller, and the other end of the transmission rod is fixedly mounted with a double-toothed sprocket. Each lifting base is fixedly mounted with a moving motor. The output shaft of the moving motor is fixedly connected to the drive sprocket through a second reducer and drives it to rotate. A drive chain is sleeved between the drive sprocket and one of the double-toothed sprockets, and a transmission chain is sleeved between adjacent double-toothed sprockets. When the moving motor starts, it drives the drive sprocket, the drive chain, and one of the double-toothed sprockets to rotate, which in turn drives the remaining double-toothed sprockets and the transmission chain to rotate. Finally, all the idler rollers and the transmission rod rotate. After the idler rollers rotate, the two moving wheels on the idler rollers rotate.

[0010] Furthermore, the clamping mold includes a lower mold and an upper mold. The lower mold is fixedly disposed at the center position of the bottom of the base frame, and the upper mold is slidably disposed on the lower mold and slides up and down relative to the lower mold.

[0011] Furthermore, it also includes a cross arm, with lifting frames fixedly installed at both ends of the base frame. The two lifting frames are located outside the two lifting seats. Support rollers are adjustablely installed on the top of the two lifting frames. Support bearings are rotatably installed at both ends of each support roller. The cross arm contacts the support bearings on the two support rollers and is detachably mounted on the two support rollers via two fixing rods.

[0012] Furthermore, multiple nut seats are fixedly installed on the top of each of the two erecting frames. A threaded rod is threaded onto each nut seat and passes through it. A first fixing hole is provided at the bottom of each support roller, and the top of the threaded rod passes through this hole. Two slots are opposite each other on the top of each erecting frame. Two locking blocks are fixedly installed at both ends of each support roller, with the two blocks located outside the two support bearings. The locking blocks engage with the slots. The threaded rods support the support rollers, and the locking blocks at both ends of the support rollers engage with the two slots on the top of the erecting frame, thus fixing the support rollers to the top of the erecting frame and maintaining stability.

[0013] Furthermore, each of the support rollers has a second fixing hole at its upper part, and each cross arm has a limiting hole at a position corresponding to the second fixing hole. Each fixing rod is T-shaped, and the bottom of each fixing rod passes through the limiting hole into the second fixing hole. When the fixing rod is manually inserted into the limiting hole and the second fixing hole, the cross arm is fixed to the support roller. Conversely, when the fixing rod is manually removed from the limiting hole and the second fixing hole, the cross arm can slide on the support bearing on the support roller.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model's fixing equipment uses a rotating component to rotate the cylinder, adjusting its position, and a moving component to move the cylinder, ultimately causing the clamping mold to hold the cylinder in place, keeping it fixed and precisely secured. This ensures the cylinder's position remains unchanged during subsequent drilling operations, improving the accuracy and quality of the drilling. Subsequently, according to user requirements, the crossarm can be first hoisted onto the support bearings on the two support rollers using external lifting equipment, and then fixed to the two support rollers using two fixing rods. A drilling machine is selected and installed at the center of the crossarm. After the drilling machine is started, it drills holes in the cylinder. After drilling is completed, the fixing rods are removed, and the crossarm is hoisted away from the two support rollers, allowing the cylinder to be unloaded. Using a drilling machine in conjunction with the crossarm to drill holes in the cylinder avoids workers directly entering the cylinder, improving drilling efficiency and accuracy, and significantly reducing the labor intensity of workers. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a fixing device for drilling holes in a cylinder according to the present invention;

[0017] Figure 2 This is a schematic diagram of the lifting structure of this utility model;

[0018] Figure 3 This is a utility model Figure 2 Enlarged structural diagram of A in the middle;

[0019] Figure 4 This is a utility model Figure 2 Enlarged structural diagram of B in the middle;

[0020] Figure 5 This is a schematic diagram of the structure of the rotating component of this utility model;

[0021] Figure 6 This is a cross-sectional structural schematic diagram of the rotating component of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the mobile component of this utility model;

[0023] Figure 8 This is a utility model Figure 7 Enlarged schematic diagram of the structure of C;

[0024] Figure 9 This is a schematic diagram of the structure of the support roller of this utility model;

[0025] Figure 10 This is a utility model Figure 9 Enlarged schematic diagram of the structure of D;

[0026] Figure 11This is a cross-sectional view of the support roller and cross arm of this utility model.

[0027] Figure 12 This is a utility model Figure 11 Enlarged schematic diagram of the structure of E in the middle;

[0028] The numbers in the attached diagram are:

[0029] 1. Base frame; 2. Clamping mold; 21. Lower mold; 22. Upper mold; 3. Lifting seat; 31. Connecting block; 4. Rotating assembly; 41. Rotating wheel; 42. Fixing groove; 421. First bearing seat; 43. Rotating lead screw; 431. First threaded section; 432. Second threaded section; 44. Displacement motor; 45. First reducer; 46. Lead screw slider; 47. Guide plate; 471. Second bearing seat; 48. Rotating motor; 49. Third reducer; 5. Moving assembly; 51. Idler roller; 52. Moving wheel; 53. Fixed upright plate; 531. Third bearing; 54. Fixed stand; 541. 55. Fourth bearing; 55. Transmission rod; 551. Double toothed sprocket; 56. Transmission chain; 6. Lifting structure; 61. Lifting motor; 62. Screw jack; 621. Screw; 63. Steering gear; 64. Connecting shaft; 65. Telescopic guide rod; 651. Fixed sleeve; 652. Moving guide column; 7. Moving motor; 71. Second reducer; 72. Drive sprocket; 73. Drive chain; 8. Cross arm; 9. Lifting frame; 91. Support roller; 911. Support bearing; 912. Locking block; 92. Fixed rod; 93. Nut seat; 94. Threaded rod; 95. Slot; 96. Pad; 97. Shim. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1-12As shown, a fixing device for drilling cylinders includes a base frame 1, a clamping mold 2, and a lifting mechanism. The clamping mold 2 is fixedly mounted on the base frame 1. The lifting mechanism includes two lifting seats 3, which are slidably mounted on the base frame 1 and located on both sides of the clamping mold 2. Each lifting seat 3 is provided with a plurality of rotating components 4 and moving components 5 distributed at intervals along the length of the lifting seat 3. The rotating components 4 include two rotating wheels 41 rotatably mounted on the lifting seat 3 and sliding relative to each other. The two rotating wheels 41 are arranged along the width of the lifting seat 3 and can slide back and forth. The rotation direction of the rotating wheels 41 is perpendicular to the moving direction of the cylinder to be processed. The moving assembly 5 includes a roller 51 rotatably mounted on the lifting seat 3 and two moving wheels 52 symmetrically mounted on the roller 51. The outer diameter of each moving wheel 52 gradually increases from the end where the two moving wheels 52 are close together to the end where they are far apart. The cross-section of the moving wheel 52 is oblong. The two moving wheels 52 can better support the cylindrical body. The two moving wheels 52 are arranged along the width direction of the lifting seat 3, and the rotation direction of the moving wheels 52 is parallel to the movement direction of the cylindrical body to be processed. See also Figure 1 In this embodiment, the length of the right-side lifting seat 3 is greater than the length of the left-side lifting seat 3, and the cylinder to be processed is loaded and fixed from the right side. The right-side lifting seat 3 is equipped with three rotating components 4 and four moving components 5 spaced apart, with the three rotating components 4 and four moving components 5 equally spaced. The left-side lifting seat 3 is equipped with two rotating components 4 and three moving components 5 spaced apart, with the two rotating components 4 and three moving components 5 equally spaced.

[0032] The working process of the fixed equipment: The two lifting seats 3 first slide upward synchronously to a certain height, which can be used as the initial position. The cylinder to be processed is hoisted on the right side. The cylinder to be processed is first hoisted onto the multiple rotating wheels 41 located on the right side by external lifting equipment. At this time, the cylinder does not contact the moving wheel 52. Specifically, the two rotating wheels 41 on each rotating component 4 slide synchronously relative to each other (the two are close to each other). The two rotating wheels 41 change the position of the contact point with the cylinder, that is, change the wrap angle between them and the cylinder (the wrap angle becomes larger). The two rotating wheels 41 support the cylinder, and the cylinder does not contact the moving wheel 52. The two rotating wheels 41 on each rotating component 4 rotate synchronously, driving the cylinder to rotate clockwise or counterclockwise until the cylinder rotates to the position to be drilled (the position of the cylinder to be drilled is rotated to the position to facilitate drilling by the subsequent drilling machine).

[0033] Then, the two rotating wheels 41 on each rotating component 4 slide synchronously relative to each other (moving away from each other), changing the contact point position between the two rotating wheels 41 and the cylinder, that is, changing the wrap angle between them and the cylinder (the wrap angle becomes smaller), causing the cylinder to fall onto the two moving wheels 52 on each idler roller 51. The multiple moving wheels 52 on the right side rotate synchronously counterclockwise, thereby driving the cylinder to move from right to left. The pressing mold 2 is activated and opened, and the left half of the cylinder passes through the pressing mold 2 and moves to the multiple moving wheels 52 on the left side. All the moving wheels 52 work together to finally make the center line of the pressing mold 2 coincide with the center line of the cylinder. The two lifting seats 3 slide downward synchronously, the pressing mold 2 supports the cylinder and closes, the pressing mold 2 holds the cylinder tightly, and the cylinder remains fixed.

[0034] After the cylinder to be processed is drilled, the clamping mold 2 opens again, and the two lifting seats 3 slide upwards synchronously so that all the moving wheels 52 support the drilled cylinder. If the length of the cylinder is greater than the length of the lifting seat 3 on the left, all the moving wheels 52 work together to make the left half of the cylinder pass through the clamping mold 2 and move to the multiple moving wheels 52 on the right, and the cylinder waits to enter the next station. If the length of the cylinder is less than the length of the lifting seat 3 on the left, all the moving wheels 52 work together to make the right half of the cylinder pass through the clamping mold 2 and move to the multiple moving wheels 52 on the left. It should be noted that the user can choose to load and fix the cylinder from the left or right side of the fixed equipment according to the size of the cylinder. The position of the cylinder is adjusted by rotating the cylinder through the corresponding rotating component 4, and the cylinder is moved by the moving component 5 to finally make the clamping mold 2 hold the cylinder.

[0035] Preferably, in this embodiment, the fixing equipment drills holes in a cylinder with a length ranging from 3200mm to 5200mm. In this embodiment, space is reserved on the right side of the base frame 1 to accommodate a cylinder with a length of 6000mm. The outer diameter of the cylinder ranges from Φ800mm to Φ1080mm, and the maximum weight is 8t. Preferably, the left-right movement speed of the cylinder is adjustable from 500mm / min to 3500mm / min, and the rotation speed of the cylinder is adjustable from 300mm / min to 2000mm / min.

[0036] In this embodiment, the fixing equipment uses a rotating component 4 to rotate the cylinder to adjust its position, and a moving component 5 to move the cylinder, ultimately causing the clamping mold 2 to hold the cylinder tightly, keeping the cylinder fixed and achieving precise fixing. The position of the cylinder does not change during subsequent drilling operations, thereby improving the accuracy and quality of subsequent drilling.

[0037] In one possible implementation, the lifting mechanism further includes two lifting structures 6 located below the two lifting seats 3, each lifting structure 6 driving one lifting seat 3 to slide up and down. Each lifting structure 6 includes a lifting motor 61 fixedly mounted on the base frame 1 and two screw jacks 62. The output shaft of the lifting motor 61 is fixedly connected to a steering gear 63, the steering gear 63 is fixedly connected to one end of two connecting shafts 64, and the other ends of the two connecting shafts 64 are respectively fixedly connected to the power input ends of the two screw jacks 62. The top ends of the screws 621 of the two screw jacks 62 are rotatably connected to one lifting seat 3. The structure of the screw jack 62 is prior art and will not be described in detail here. The output shaft of the lifting motor 61 is connected to the steering gear 63, the steering gear 63 to the connecting shafts 64, and the connecting shafts 64 to the power input ends of the screw jacks 62 via couplings. A lifting motor 61 drives the screw jack 62 to move upwards or downwards. A steering gear 63 transmits the power of the lifting motor 61 to the two screw jacks 62, enabling them to move synchronously and ensuring the height of the lifting seat 3 is stable and synchronized during lifting. When the lifting motor 61 starts, it drives the steering gear 63 and the connecting shaft 64 to rotate, which in turn drives the screw 621 of the screw jack 62 to move upwards or downwards. When the screw 621 of the screw jack 62 slides upwards, it drives the lifting seat 3 to slide upwards; conversely, when the screw 621 of the screw jack 62 slides downwards, it drives the lifting seat 3 to slide downwards. Preferably, the screw jack 62 is configured to raise or lower the centerline of the cylinder by 50mm above and below the centerline of the hydraulic mold.

[0038] In one possible implementation, each of the lifting structures 6 further includes multiple telescopic guide rods 65 fixedly mounted on the base frame 1, with the tops of each telescopic guide rod 65 fixedly connected to a lifting seat 3. Each telescopic guide rod 65 includes a fixed sleeve 651 fixedly mounted on the base frame 1 and a movable guide post 652 slidably mounted on the fixed sleeve 651. The movable guide post 652 slides up and down relative to the fixed sleeve 651 and is rotatably connected to the lifting seat 3. When the screw 621 of the screw jack 62 slides upward, it drives the lifting seat 3 to slide upward, at which time the movable guide post 652 slides on the fixed sleeve 651 and slides upward relative to it. Conversely, when the screw 621 of the screw jack 62 slides downward, it drives the lifting seat 3 to slide downward, at which time the movable guide post 652 slides downward on the fixed sleeve 651 and slides downward relative to it. The telescopic guide rods 65 further support the lifting seat 3, ensuring greater stability of the lifting seat 3 during up and down sliding.

[0039] Preferably, each lifting seat 3 has multiple connecting blocks 31 fixedly installed at its bottom. These connecting blocks 31 are rotatably connected to the moving guide column 652 and the lead screw 621 of the screw jack 62 via pins. The lifting seat 3 is rotatably connected to the moving guide column 652 and the screw jack 62 through the connecting blocks 31 and pins. When the lifting seat 3 slides up and down, since it can rotate relative to the moving guide column 652 and the screw jack 62, the lifting seat 3 can also adaptively fine-tune its angle according to the position of the cylinder.

[0040] In one possible implementation, the rotating assembly 4 further includes a fixed groove 42, a rotating lead screw 43, and a displacement motor 44. The fixed groove 42 is fixedly mounted on the lifting seat 3. The rotating lead screw 43 is rotatably mounted inside the fixed groove 42. The displacement motor 44 is fixedly mounted outside the fixed groove 42. The output shaft of the displacement motor 44 is fixedly connected to the end of the rotating lead screw 43 via a first reducer 45 and drives it to rotate. The output shaft of the displacement motor 44 is fixedly connected to the input shaft of the first reducer 45. The output shaft of the first reducer 45 is fixedly connected to the end of the rotating lead screw 43. Two lead screw sliders 46 are slidably mounted on the rotating lead screw 43. Two guide plates 47 are slidably mounted on the top of the fixed groove 42, and the two guide plates 47 are respectively fixedly connected to the two lead screw sliders 46. The guide plates 47 are located at the top of the fixed groove 42 and can slide. The two rotating wheels 41 are respectively rotatably mounted on the two guide plates 47. The displacement motor 44 and the first reducer 45 are started, driving the rotating lead screw 43 to rotate. Since the guide plate 47 is in contact with the top of the fixed groove 42, the two lead screw sliders 46 actually slide relative to each other on the rotating lead screw 43, driving the two guide plates 47 to slide relative to each other on the top of the fixed groove 42. The two rotating wheels 41 eventually move closer or further apart.

[0041] Preferably, each of the fixed grooves 42 is fixedly provided with two first bearing seats 421, and each of the two first bearing seats 421 is fixedly provided with a first bearing. The two ends of the rotating screw 43 are respectively fixedly connected to the two first bearings to realize rotation.

[0042] Preferably, the guide plate 47 is U-shaped, and each guide plate 47 is fixedly equipped with a rotary motor 48 and two second bearing seats 471. Each of the two second bearing seats 471 is fixedly equipped with a second bearing. The two ends of the axle of the rotating wheel 41 are respectively fixedly connected to the two second bearings to achieve rotation. The output shaft of the rotary motor 48 is fixedly connected to the input shaft of the third reducer 49, and the output shaft of the third reducer 49 is fixedly connected to the axle of the rotating wheel 41. When the rotary motor 48 and the third reducer 49 are started, they drive the axles of the two rotating wheels 41 to rotate, ultimately achieving rotation of the rotating wheel 41.

[0043] In one possible implementation, each of the rotating lead screws 43 is provided with a first threaded section 431 and a second threaded section 432 with opposite threads. Two lead screw sliders 46 are respectively located on the first threaded section 431 and the second threaded section 432 and are threadedly connected to them. When the displacement motor 44 and the first reducer 45 are started, they drive the rotating lead screws 43 to rotate. Since the guide plate 47 is in contact with the top of the fixed groove 42, the two lead screw sliders 46 actually slide back and forth on the first threaded section 431 and the second threaded section 432 respectively.

[0044] In one possible implementation, the moving assembly 5 further includes a fixed support 54 and two fixed plates 53 fixedly mounted on the lifting base 3. The fixed support 54 is triangular. The idler roller 51 is rotatably mounted on the two fixed plates 53. A transmission rod 55 is rotatably mounted on the fixed support 54. One end of the transmission rod 55 is fixedly connected to the end of the idler roller 51, and the other end of the transmission rod 55 is fixedly mounted with a double-toothed sprocket 551. Each lifting base 3 is fixedly mounted with a moving motor 7. The output shaft of the moving motor 7 is fixedly connected to the drive sprocket 72 through a second reducer 71 and drives it to rotate. The output shaft of the moving motor 7 is fixedly connected to the input shaft of the second reducer 71, and the output shaft of the second reducer 71 is fixedly connected to the drive sprocket 72. A drive chain 73 is sleeved between the drive sprocket 72 and one of the double-toothed sprockets 551, and a transmission chain 56 is sleeved between each two adjacent double-toothed sprockets 551. The mobile motor 7 and the second reducer 71 start, driving the drive sprocket 72, the drive chain 73 and one of the double-toothed sprockets 551 to rotate, which in turn drives the remaining double-toothed sprockets 551 and the transmission chain 56 to rotate. Finally, all the idler rollers 51 and the transmission rods 55 rotate. After the idler rollers 51 rotate, the two moving wheels 52 on the idler rollers 51 also rotate.

[0045] Preferably, each of the fixed upright plates 53 is fixedly provided with a third bearing seat (not shown in the figure), and a third bearing 531 is fixedly provided on the third bearing seat. The two ends of the roller 51 are respectively fixedly connected to the two third bearings 531 to achieve rotation.

[0046] Preferably, a fourth bearing 541 is fixedly installed on each of the fixed supports 54, and the transmission rod 55 is fixedly connected to and passes through the fourth bearing 541, so that the transmission rod 55 can rotate.

[0047] In one possible implementation, the clamping mold 2 includes a lower mold 21 and an upper mold 22. The lower mold 21 is fixedly disposed at the center of the bottom of the base frame 1, and the upper mold 22 is slidably disposed on the lower mold 21 and slides up and down relative to the lower mold 21. The cylinder to be processed is fixed between the lower mold 21 and the upper mold 22. This embodiment provides a simplified description of the operation of the upper mold 22. Generally, a hydraulic cylinder (not shown in the figure) is installed inside the lower mold 21. The hydraulic rod of the hydraulic cylinder extends to the outside of the lower mold 21 and is fixedly connected to the upper mold 22, enabling the upper mold 22 to slide up and down. This embodiment provides a simplified schematic of the structure of the clamping mold 2 but does not limit its scope. It should be noted that the size of the circular area between the upper mold 22 and the lower mold 21 is generally slightly larger than the outer diameter of the cylinder, ensuring that the upper mold 22 can fix the cylinder between itself and the lower mold 21.

[0048] The hydraulic cylinder starts, causing the upper mold 22 to slide upward relative to the lower mold 21. The left half of the cylinder passes through the circular area between the upper mold 22 and the lower mold 21, with the lower mold 21 supporting the cylinder. After the center line of the clamping mold 2 coincides with the center line of the cylinder, the hydraulic cylinder causes the upper mold 22 to slide downward relative to the lower mold 21. The upper mold 22 fixes the cylinder between itself and the lower mold 21, thus clamping the cylinder and keeping it stationary.

[0049] Due to the limited space inside the cylinder, manual drilling is laborious and inefficient once the cylinder is secured. It is particularly important to note that improper working posture can easily lead to drilling accidents, such as drill bit breakage, resulting in unnecessary processing time. Once the cylinder is secured, a drilling machine can be installed for automated drilling.

[0050] As one possible implementation, it also includes a horizontal arm 8. Two lifting frames 9 are fixedly installed at both ends of the base frame 1. The two lifting frames 9 are located outside the two lifting seats 3. Support rollers 91 are adjustablely installed on the top of each of the two lifting frames 9. Support bearings 911 are rotatably installed at both ends of each support roller 91. The support bearings 911 are sleeved on the ends of the support rollers 91 and can rotate. The horizontal arm 8 contacts the support bearings 911 on the two support rollers 91, and the horizontal arm 8 is detachably mounted on the two support rollers 91 via two fixing rods 92. Preferably, the distance between the centerline of the horizontal arm 8 and the centerline of the cylinder and the bottom surface of the lower mold 21 is 1250mm, that is, the distance between the centerline of the hydraulic mold and the bottom surface of the lower mold 21 is 1250mm. The height of the support rollers 91 is adjustable, thereby adjusting the height of the horizontal arm 8, ultimately causing the centerline of the horizontal arm 8 to rise and fall by 60mm above and below the centerline of the pressing mold 2.

[0051] The horizontal arm 8 is first hoisted onto the support bearings 911 on the two support rollers 91 using external lifting equipment. Specifically, the external lifting equipment holds the horizontal arm 8, with the left end of the horizontal arm 8 contacting the support bearing 911 on the right support roller 91. The horizontal arm 8 moves from right to left, causing the support bearing 911 to rotate and ensure smooth movement of the horizontal arm 8 (the support bearing 911 facilitates the pushing and pulling of the horizontal arm 8 into the cylinder and allows for fine-tuning of the horizontal arm 8's left and right positions), until the left end of the horizontal arm 8 contacts the support bearing 911 on the left support roller 91 and the right end of the horizontal arm 8 contacts the support bearing 911 on the right support roller 91. At this point, the center line of the pressing mold 2 coincides with the center line of the horizontal arm 8. Then, the horizontal arm 8 is fixed to the two support rollers 91 using two fixing rods 92. According to user requirements, a drilling machine is selected and installed (not shown in the figure) at the center position of the horizontal arm 8 (the drilling machine is located inside the cylinder and corresponds to the position of the pressing mold 2). After the drilling machine is started, it can drill holes in the cylinder to be drilled. After the cylinder to be processed is drilled, the fixing rod 92 is removed, and the cross arm 8 is lifted off the two support rollers 91, after which the cylinder can be unloaded. Using the drilling machine in conjunction with the cross arm 8 to drill holes in the cylinder to be processed avoids workers from directly entering the inside of the cylinder, which can improve drilling efficiency and drilling accuracy, and greatly reduce the labor intensity of workers.

[0052] In one possible implementation, multiple nut seats 93 are fixedly installed on the top of each of the two erecting frames 9. A crossbeam is fixedly installed on the erecting frame 9, and the nut seats 93 are fixedly installed on the crossbeam. A threaded rod 94 is threaded onto the nut seat 93 and passes through the nut seat 93. Each support roller 91 has a first fixing hole at its lower part. The top of the threaded rod 94 passes through the first fixing hole, and the bottom of the threaded rod 94 also passes through the crossbeam. Each erecting frame 9 has two slots 95 opposite each other on its top. The crossbeam is located below the slots 95. Each support roller 91 has two locking blocks 912 fixedly installed at both ends, and the two locking blocks 912 are located outside the two support bearings 911. The locking blocks 912 are engaged in the slots 95. The threaded rod 94 supports the support roller 91, and the locking blocks 912 at both ends of the support roller 91 are engaged in the two slots 95 on the top of the erecting frame 9, thus fixing the support roller 91 to the top of the erecting frame 9 and keeping it stable. The operator manually rotates the threaded rod 94, which slides upward or downward relative to the nut seat 93. The top of the threaded rod 94 continues to pass through the first fixing hole, and the locking blocks 912 at both ends of the support roller 91 respectively lock into the two locking slots 95 at the top of the erector 9, thereby adjusting the height of the support roller 91 and thus adjusting the height of the cross arm 8.

[0053] Preferably, each of the lifting frames 9 has a pad 96 fixedly installed at its slot 95 by bolts and nuts. The pad 96 is located above the locking block 912, and a shim 97 is fixedly installed on the pad 96. When the horizontal arm 8 moves from right to left, both sides of the horizontal arm 8 contact the two shims 97. The shims 97 prevent the horizontal arm 8 from contacting the lifting frame 9 and causing wear. At the same time, after the horizontal arm 8 is adjusted, the shims 97 ensure that the horizontal arm 8 remains fixed and prevents the horizontal arm 8 from moving again. The shims 97 also allow the horizontal arm 8 to be adjusted moderately in the front-back direction to ensure that the centerline of the horizontal arm 8 in the front-back direction coincides with the center of the pressing mold 2 in the front-back direction.

[0054] In one possible implementation, each support roller 91 has a second fixing hole at its upper part, and each cross arm 8 has a limiting hole at a position corresponding to the second fixing hole. Each fixing rod 92 is T-shaped, and the bottom of each fixing rod 92 passes through the limiting hole into the second fixing hole. When the fixing rod 92 is manually inserted into the limiting hole and the second fixing hole, the cross arm 8 is fixed to the support roller 91. Conversely, when the fixing rod 92 is manually removed from the limiting hole and the second fixing hole, the cross arm 8 can move on the support bearing 911 on the support roller 91.

[0055] Preferably, the fixing rod 92 includes an upper rod and a lower rod that are fixedly connected and perpendicular to each other. The outer diameter of the lower part of the lower rod is smaller than the outer diameter of the upper part of the lower rod. When the lower rod of the fixing rod 92 is inserted into the limiting hole and the second fixing hole, the upper part of the lower rod contacts the cross arm 8, which serves as a limiting action. Preferably, the lower rod of the fixing rod 92 is provided with an external thread, and the second fixing hole and the limiting hole are provided with internal threads that match the external thread.

[0056] The embodiments described above are merely preferred embodiments of this utility model and are only used to explain this utility model. They are not intended to limit the scope of implementation of this utility model. For those skilled in the art, other implementation methods can be easily made by substitution or modification based on the technical content disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A fixing device for drilling holes in a cylinder, characterized in that, The device includes a base frame (1), a pressing mold (2), and a lifting mechanism. The pressing mold (2) is fixedly mounted on the base frame (1). The lifting mechanism includes two lifting seats (3), which are slidably mounted on the base frame (1) and located on both sides of the pressing mold (2). Each lifting seat (3) is provided with a plurality of rotating components (4) and moving components (5) spaced apart. The rotating component (4) includes two rotating wheels (41) rotatably mounted on the lifting seat (3) and the two rotating wheels (41) slide relative to each other. The moving component (5) includes a roller (51) rotatably mounted on the lifting seat (3) and two moving wheels (52) symmetrically mounted on the roller (51).

2. The fixing device for drilling holes in a cylinder according to claim 1, characterized in that, The lifting mechanism also includes two lifting structures (6) located below the two lifting seats (3), each of the lifting structures (6) being used to drive a lifting seat (3) to slide up and down; each of the lifting structures (6) includes a lifting motor (61) fixedly mounted on the base frame (1) and two screw jacks (62), the output shaft of the lifting motor (61) being fixedly connected to a steering gear (63), the steering gear (63) being fixedly connected to one end of two connecting shafts (64), the other end of the two connecting shafts (64) being fixedly connected to the power input end of the two screw jacks (62), and the screws (621) of the two screw jacks (62) being rotatably connected to a lifting seat (3).

3. The fixing device for drilling holes in a cylinder according to claim 2, characterized in that, Each of the lifting structures (6) further includes multiple telescopic guide rods (65) fixedly mounted on the base frame (1), the top of each of the multiple telescopic guide rods (65) being fixedly connected to a lifting seat (3); each of the telescopic guide rods (65) includes a fixed sleeve (651) fixedly mounted on the base frame (1) and a movable guide post (652) slidably mounted on the fixed sleeve (651), the movable guide post (652) being rotatably connected to the lifting seat (3).

4. The fixing device for drilling holes in a cylinder according to claim 1, characterized in that, The rotating assembly (4) further includes a fixed groove (42), a rotating lead screw (43), and a displacement motor (44). The fixed groove (42) is fixedly mounted on the lifting seat (3). The rotating lead screw (43) is rotatably mounted inside the fixed groove (42). The displacement motor (44) is fixedly mounted outside the fixed groove (42). The output shaft of the displacement motor (44) is fixedly connected to the end of the rotating lead screw (43) through a first reducer (45) and drives it to rotate. Two lead screw sliders (46) are slidably mounted on the rotating lead screw (43). Two guide plates (47) are slidably mounted on the top of the fixed groove (42), and the two guide plates (47) are fixedly connected to the two lead screw sliders (46) respectively. The two rotating wheels (41) are rotatably mounted on the two guide plates (47) respectively.

5. The fixing device for drilling holes in a cylinder according to claim 4, characterized in that, Each of the rotating lead screws (43) is provided with a first threaded section (431) and a second threaded section (432) with opposite threads, and the two lead screw sliders (46) are located on the first threaded section (431) and the second threaded section (432) respectively and are threadedly connected to them.

6. The fixing device for drilling holes in a cylinder according to claim 1, characterized in that, The moving component (5) also includes a fixed stand (54) and two fixed plates (53) fixedly mounted on the lifting seat (3). The roller (51) is rotatably mounted on the two fixed plates (53). A transmission rod (55) is rotatably mounted on the fixed stand (54). One end of the transmission rod (55) is fixedly connected to the end of the roller (51). A double-toothed sprocket (551) is fixedly mounted on the other end of the transmission rod (55). A moving motor (7) is fixedly mounted on each lifting seat (3). The output shaft of the moving motor (7) is fixedly connected to the drive sprocket (72) through a second reducer (71) and drives it to rotate. A drive chain (73) is sleeved between the drive sprocket (72) and one of the double-toothed sprockets (551). A transmission chain (56) is sleeved between two adjacent double-toothed sprockets (551).

7. The fixing device for drilling holes in a cylinder according to claim 1, characterized in that, The pressing mold (2) includes a lower mold (21) and an upper mold (22). The lower mold (21) is fixedly set at the center of the bottom of the base frame (1). The upper mold (22) is slidably set on the lower mold (21) and slides up and down relative to the lower mold (21).

8. The fixing device for drilling holes in a cylinder according to claim 7, characterized in that, It also includes a cross arm (8), and two lifting frames (9) are fixedly installed at both ends of the base frame (1). The two lifting frames (9) are located outside the two lifting seats (3). The top of the two lifting frames (9) can be adjusted to be equipped with support rollers (91). Each support roller (91) has a support bearing (911) rotatably installed at both ends. The cross arm (8) contacts the support bearings (911) on the two support rollers (91) and the cross arm (8) is detachably installed on the two support rollers (91) through two fixing rods (92).

9. The fixing device for drilling holes in a cylinder according to claim 8, characterized in that, Multiple nut seats (93) are fixedly provided on the top of each of the two erecting frames (9). Threaded rods (94) are threaded on the nut seats (93) and the threaded rods (94) pass through the nut seats (93). A first fixing hole is provided at the bottom of each of the support rollers (91), and the top of the threaded rods (94) passes through the first fixing hole. Two slots (95) are provided opposite each other on the top of each of the erecting frames (9). Two locking blocks (912) are fixedly provided at both ends of each of the support rollers (91), and the two locking blocks (912) are located outside the two support bearings (911). The locking blocks (912) are locked into the slots (95).

10. The fixing device for drilling holes in a cylinder according to claim 8, characterized in that, Each of the support rollers (91) has a second fixing hole at its upper part. The cross arm (8) has a limit hole at the position corresponding to the second fixing hole. Each fixing rod (92) is T-shaped, and the bottom of each fixing rod (92) passes through the limit hole into the second fixing hole.

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