Adjustable clamp for flange machining

Abstract

The utility model discloses an adjustable flange machining clamp which comprises a clamping table and an outer supporting mechanism. A supporting bin is arranged at the upper end of the clamping table. The outer supporting mechanism comprises driven shafts, adjusting handles, outer supporting rods and semi-arc grooves, the driven shafts are evenly and rotatably connected to the interior of the supporting bin, the upper ends of the driven shafts are fixedly connected with the adjusting handles, the upper ends of the adjusting handles are fixedly connected with the outer supporting rods, and the semi-arc grooves are evenly formed in the upper end of the supporting bin; the outer surfaces of the outer supporting rods are in sliding connection with the interiors of the radially adjacent semicircular arc grooves, the lower ends of the outer supporting rods are fixedly connected with limiting rings, the outer supporting mechanism further comprises a transmission shaft and a transmission gear, and the transmission shaft is rotationally connected to the center position in the supporting bin. Stable clamping of flanges with different inner diameters is achieved in an outer supporting and triangular supporting mode, meanwhile, the contact area between the clamping units and the flanges is reduced, and the stability of flange clamping is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of flange processing technology, specifically to an adjustable flange processing fixture. Background Technology

[0002] Adjustable flange processing fixtures are devices used to clamp and fix flanges during flange processing. Their design allows for adjustment according to different flange specifications and sizes, thereby improving processing efficiency and accuracy. Adjustable flange processing fixtures are widely used in the flange manufacturing and processing field, especially in situations where it is necessary to process flanges of various specifications and sizes, such as in the automotive manufacturing, petrochemical, and machinery manufacturing industries.

[0003] In the prior art, patent CN219254859U discloses an adjustable flange processing fixture, including a main body. A support rod and a motor are installed at the bottom of the main body. The support rod is symmetrical about the center line of the long side of the main body. A slide rail is fixedly connected to the end of each support rod. A rotating rod is fixedly connected to the output end of the motor. Two half gears are arranged inside the main body. A positioning column is arranged at the bottom of the main body. One half gear is fixedly connected to the rotating rod, and the other half gear is rotatably connected to one end of the positioning column. The two half gears are meshed. A moving mechanism is arranged on each half gear, and a clamping mechanism is arranged at the end of each moving mechanism. The clamping mechanism can be adjusted through the moving mechanism, which can realize the processing operation of flanges of different diameters.

[0004] This type of adjustable flange processing fixture uses the lateral spacing adjustment of the extrusion plates to achieve two-point concentric clamping of the flange. When the two extrusion plates clamp the flange at two points, the stability of the flange clamping is limited to a certain extent. At the same time, the contact area between the extrusion plates and the flange is large, which affects the processing of the flange by external equipment. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an adjustable flange processing fixture. It achieves stable clamping of flanges with different inner diameters by means of external support and triangular support, while reducing the contact area between the clamping unit and the flange, which greatly improves the stability of flange clamping and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable flange processing fixture, including a clamping table, a support chamber at the upper end of the clamping table, and an external support mechanism;

[0007] External support mechanism: It includes a driven shaft, an adjusting handle, an external support rod, and a semi-circular arc groove. The driven shaft is uniformly rotatably connected to the inside of the support chamber. The upper end of the driven shaft is fixedly connected to the adjusting handle, and the upper end of the adjusting handle is fixedly connected to the external support rod. The semi-circular arc groove is uniformly arranged at the upper end of the support chamber. The outer surface of the external support rod is slidably connected to the interior of the radially adjacent semi-circular arc groove. The lower end of the external support rod is fixedly connected to a limit ring. Stable clamping of flanges with different inner diameters is achieved by external support and triangular support, while reducing the contact area between the clamping unit and the flange, which greatly improves the stability of flange clamping.

[0008] Furthermore, the external support mechanism also includes a drive shaft and a drive gear. The drive shaft is rotatably connected to the center position inside the support chamber. A drive gear is fixedly connected to the middle of the drive shaft. A driven gear is fixedly connected to the middle of each driven shaft. The driven gears are meshed with the drive gear to achieve synchronous position adjustment of the three external support rods.

[0009] Furthermore, the external support mechanism also includes a drive shaft and a worm gear. The drive shaft is rotatably connected to the right end inside the support chamber. A drive gear is fixedly connected to the upper end of the drive shaft, and the drive gear meshes with a transmission gear. A worm wheel is fixedly connected to the lower end of the drive shaft. The worm gear is rotatably connected to the lower end of the support chamber, and the worm gear meshes with the worm wheel. A drive handle is fixedly connected to the right end of the worm gear to provide driving force for the movement of the external support rod.

[0010] Furthermore, the clamping platform is equipped with a steering chamber inside, and a rotating cylinder is rotatably connected inside the steering chamber. A screw is rotatably connected to the upper end of the rotating cylinder. A threaded cylinder is fixedly connected to the center position of the lower surface of the support chamber. The threaded cylinder is threadedly connected to the screw. Guide rods are fixedly connected to both the front and rear ends of the lower surface of the support chamber. Sliding ports are provided at both the front and rear ends of the rotating cylinder. The outer surfaces of the guide rods are slidably connected to the interior of the vertically adjacent sliding ports, thereby realizing the vertical movement of the support chamber.

[0011] Furthermore, a rotating shaft is rotatably connected to the right end of the rotating drum, and a driving helical gear is fixedly connected to the end of the rotating shaft near the center of the rotating drum. A driven helical gear is fixedly connected to the lower end of the screw. The driving helical gear and the driven helical gear are meshed together. A rotating handle is fixedly connected to the end of the rotating shaft away from the center of the rotating drum, providing driving force for the vertical movement of the support chamber.

[0012] Furthermore, a control switch is provided on the right end of the upper surface of the clamping platform. The input end of the control switch is electrically connected to an external power supply to control the operation of the motor.

[0013] Furthermore, a motor is installed at the lower end of the steering chamber, and a second drive gear is fixedly connected to the upper end of the motor output shaft. A driven gear ring is installed at the lower end of the inner wall of the rotating drum. The second drive gear ring meshes with the driven gear ring. The input end of the motor is electrically connected to the output end of the control switch to realize the lateral rotation of the flange in the clamp.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This adjustable flange processing fixture has the following advantages:

[0015] The gear mechanism enables the synchronous rotation of the three adjusting handles, which in turn causes the outer support rods to rotate outward, thus adjusting the centering distance of the outer support rods. The outer support and triangular support method achieves stable clamping of flanges with different inner diameters. At the same time, the outer support rods, relative to the clamping plate, greatly reduce the contact area between the clamping unit and the flange, effectively reducing the impact of the flange clamping mechanism on flange processing, greatly improving the stability of flange clamping, and thus improving the stability of flange processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0018] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0019] Figure 4 This is an enlarged structural diagram of section B of the present invention.

[0020] In the diagram: 1. Clamping platform, 2. Steering chamber, 3. External support mechanism, 31. Drive shaft, 32. Driven shaft, 33. Adjusting handle, 34. External support rod, 35. Semi-circular groove, 36. Drive shaft, 37. Transmission gear, 38. Worm gear, 4. Rotary cylinder, 5. Support chamber, 6. Screw, 7. Threaded cylinder, 8. Guide rod, 9. Rotary shaft, 10. Drive gear II, 11. Motor, 12. Control switch. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This embodiment provides a technical solution: an adjustable flange processing fixture, including a clamping table 1, a support chamber 5 at the upper end of the clamping table 1, and an external support mechanism 3;

[0023] External support mechanism 3 includes a driven shaft 32, an adjusting handle 33, an external support rod 34, and a semi-circular groove 35. The driven shaft 32 is rotatably connected to the inside of the support chamber 5. The upper end of each driven shaft 32 is fixedly connected to an adjusting handle 33, and the upper end of each adjusting handle 33 is fixedly connected to an external support rod 34. The semi-circular grooves 35 are evenly arranged at the upper end of the support chamber 5, and the center of each semi-circular groove 35 is located on the central axis of the radially adjacent driven shaft 32. The driven shaft 32 and the semi-circular grooves 35 are evenly distributed circumferentially around the central axis of the transmission shaft 31. The outer surface of the external support rod 34 is connected to the radially adjacent semi-circular grooves. The internal sliding connection of the support frame 35 and the lower end of the external support rod 34 are all fixedly connected to limit rings. The external support mechanism 3 also includes a drive shaft 31 and a drive gear 37. The drive shaft 31 is rotatably connected to the center position inside the support chamber 5. The drive gear 37 is fixedly connected to the middle of the drive shaft 31. The driven gears are all fixedly connected to the middle of the driven shaft 32. The driven gears are all meshed with the drive gear 37. The external support mechanism 3 also includes a drive shaft 36 and a worm gear 38. The drive shaft 36 is rotatably connected to the right end inside the support chamber 5. The upper end of the drive shaft 36 is fixedly connected to a drive gear 1. The drive gear 1 meshes with the drive gear 37. Gear 37 is meshed with the drive shaft 36, and a worm gear is fixedly connected to the lower end of the drive shaft 36. The worm 38 is rotatably connected to the lower end of the support chamber 5, and the worm 38 and the worm gear are meshed with each other. A drive handle is fixedly connected to the right end of the worm 38. The flange to be processed is placed on the upper end of the support chamber 5, and all three external support rods 34 pass through the inside of the flange. Then, the drive handle is rotated, which drives the worm 38 to rotate, which in turn drives the worm gear to rotate. The rotation of the worm gear drives the drive shaft 36 to rotate, which in turn drives the drive gear 1 to rotate, which in turn drives the transmission gear 37 to rotate. The rotation of the transmission gear 37 drives the uniform... The distributed driven gears rotate, and the rotation of the driven gears drives the radially adjacent driven shafts 32 to rotate. The rotation of the driven shafts 32 drives the radially adjacent adjusting handles 33 to rotate. The rotation of the adjusting handles 33 drives the radially adjacent outer support rods 34 to move away from the center of the support chamber 5. At the same time, the outer support rods 34 slide inside the corresponding semi-circular arc grooves 35. The outer support rods 34 realize stable external support for flanges with different inner diameters. Meanwhile, the limiting ring provides vertical support for the flange, thereby realizing stable clamping of the flange. At the same time, the contact area between the outer support rods 34 and the flange is small, reducing the impact on the specific operation during flange processing.

[0024] The clamping platform 1 has a steering chamber 2 inside, and a rotating cylinder 4 is rotatably connected inside the steering chamber 2. A screw 6 is rotatably connected to the upper end of the rotating cylinder 4. A threaded cylinder 7 is fixedly connected to the center of the lower surface of the support chamber 5. The threaded cylinder 7 is threadedly connected to the screw 6. Guide rods 8 are fixedly connected to both the front and rear ends of the lower surface of the support chamber 5. Sliding openings are provided at both the front and rear ends of the rotating cylinder 4. The outer surfaces of the guide rods 8 are slidably connected to the interior of the vertically adjacent sliding openings. A rotating shaft 9 is rotatably connected to the right end of the rotating cylinder 4. A drive helical gear is fixedly connected to the end of the rotating shaft 9 near the center of the rotating cylinder 4. The screw 6... The lower end of the shaft 9 is fixedly connected to a driven helical gear, and the driving helical gear and the driven helical gear are meshed together. The end of the shaft 9 away from the center of the rotating cylinder 4 is fixedly connected to a rotating handle. According to the flange processing requirements, the shaft 9 can be rotated by the driving handle. The rotation of the shaft 9 drives the driving helical gear to rotate, which in turn drives the driven helical gear to rotate, which in turn drives the screw 6 to rotate. The screw 6 acts on the threaded cylinder 7, which pushes the support chamber 5 upward, thereby realizing the upward movement of the flange in the clamp. At the same time, the guide rods 8 slide inside the corresponding sliding mouth, providing guidance and limiting function for the vertical movement of the support chamber 5.

[0025] Among them: a control switch 12 is provided on the right end of the upper surface of the clamping table 1, and the input end of the control switch 12 is electrically connected to an external power supply.

[0026] The lower end of the steering chamber 2 is equipped with a motor 11, and the upper end of the output shaft of the motor 11 is fixedly connected with a drive gear 10. The lower end of the inner wall of the rotating drum 4 is equipped with a driven gear ring, and the drive gear 10 meshes with the driven gear ring. The input end of the motor 11 is electrically connected to the output end of the control switch 12. The motor 11 is turned by the control switch 12. The rotation of the output shaft of the motor 11 drives the drive gear 10 to rotate, which in turn drives the driven gear ring to rotate, which in turn causes the rotating drum 4 to rotate. The rotation of the rotating drum 4 drives the support chamber 5 to rotate, which in turn drives the flange in the clamp to rotate, which facilitates the processing of the flange.

[0027] The working principle of the adjustable flange processing fixture provided by this utility model is as follows: During operation, the operator first stably places the clamping table 1, the turning chamber 2, and other mechanisms in a horizontal working area. After stable placement, the operator places the flange to be processed on the upper end of the support chamber 5. Simultaneously, all three external support rods 34 pass through the interior of the flange. Then, the operator rotates the drive handle, which drives the worm gear 38 to rotate, which in turn drives the worm wheel to rotate. The worm wheel rotates, which drives the drive shaft 36 to rotate, which in turn drives the drive gear 1 to rotate, which in turn drives the transmission gear 37 to rotate. The transmission gear 37 rotates, which drives the evenly distributed driven gears to rotate. The rotation of the driven gears drives the radially adjacent driven shafts 32 to rotate, which in turn drives the radially adjacent adjusting handles 33 to rotate. The rotation of the adjusting handles 33 drives the radially adjacent external support rods 34 to move away from the center of the support chamber 5. Simultaneously, the external support rods 34 slide within the corresponding semi-circular grooves 35. The external support rods 34 achieve adjustment for flanges with different inner diameters. The flange is stably supported by an external brace, while the limiting ring provides vertical support for the flange, thus achieving stable clamping of the flange. The small contact area between the external brace rod 34 and the flange reduces the impact on the specific operation during flange processing. According to the flange processing requirements, the operator can rotate the shaft 9 via the drive handle. The rotation of the shaft 9 drives the drive helical gear, which in turn drives the driven helical gear, which in turn drives the screw 6. The screw 6 acts on the threaded cylinder 7, causing the threaded cylinder 7 to push the support chamber 5 upwards, thereby moving the clamped flange upwards. Simultaneously, the guide rods 8 slide within their corresponding sliding ports, providing guidance and limiting for the vertical movement of the support chamber 5. When the flange reaches the required height, the operator stops rotating the drive handle and then controls the motor 11 via the control switch 12. The output shaft of the motor 11 rotates, driving the drive gear 10, which in turn drives the driven gear ring, causing the rotating cylinder 4 to rotate. The rotation of the rotating cylinder 4 drives the support chamber 5, which in turn rotates the clamped flange, facilitating flange processing.

[0028] It is worth noting that the control switch 12 disclosed in the above embodiments is provided with a control button that corresponds to the motor 11 and controls its switching.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An adjustable flange processing fixture, comprising a clamping table (1), wherein a support chamber (5) is provided at the upper end of the clamping table (1), characterized in that: It also includes external support mechanisms (3); External support mechanism (3): It includes a driven shaft (32), an adjusting handle (33), an external support rod (34) and a semi-circular groove (35). The driven shaft (32) is uniformly rotatably connected to the inside of the support chamber (5). The upper end of the driven shaft (32) is fixedly connected to the adjusting handle (33). The upper end of the adjusting handle (33) is fixedly connected to the external support rod (34). The semi-circular groove (35) is uniformly arranged at the upper end of the support chamber (5). The outer surface of the external support rod (34) is slidably connected to the interior of the radially adjacent semi-circular groove (35). The lower end of the external support rod (34) is fixedly connected to a limit ring.

2. The adjustable flange processing fixture according to claim 1, characterized in that: The external support mechanism (3) also includes a drive shaft (31) and a drive gear (37). The drive shaft (31) is rotatably connected to the center position inside the support chamber (5). The drive gear (37) is fixedly connected to the middle part of the drive shaft (31). The driven shaft (32) is fixedly connected to the middle part of each driven gear. The driven gears are meshed with the drive gear (37).

3. The adjustable flange processing fixture according to claim 2, characterized in that: The external support mechanism (3) also includes a drive shaft (36) and a worm (38). The drive shaft (36) is rotatably connected to the right end inside the support chamber (5). A drive gear is fixedly connected to the upper end of the drive shaft (36), and the drive gear meshes with the transmission gear (37). A worm wheel is fixedly connected to the lower end of the drive shaft (36). The worm (38) is rotatably connected to the lower end of the support chamber (5), and the worm (38) meshes with the worm wheel. A drive handle is fixedly connected to the right end of the worm (38).

4. The adjustable flange processing fixture according to claim 1, characterized in that: The clamping platform (1) is provided with a turning chamber (2) inside. A rotating cylinder (4) is rotatably connected inside the turning chamber (2). A screw (6) is rotatably connected to the upper end of the rotating cylinder (4). A threaded cylinder (7) is fixedly connected to the center of the lower surface of the support chamber (5). The threaded cylinder (7) is threadedly connected to the screw (6). Guide rods (8) are fixedly connected to both the front and rear ends of the lower surface of the support chamber (5). Sliding openings are provided at both the front and rear ends of the rotating cylinder (4). The outer surface of the guide rod (8) is slidably connected to the interior of the vertically adjacent sliding opening.

5. The adjustable flange processing fixture according to claim 4, characterized in that: The right end of the rotating drum (4) is rotatably connected to a rotating shaft (9). The end of the rotating shaft (9) near the center of the rotating drum (4) is fixedly connected to a driving helical gear. The lower end of the screw (6) is fixedly connected to a driven helical gear. The driving helical gear and the driven helical gear are meshed together. The end of the rotating shaft (9) away from the center of the rotating drum (4) is fixedly connected to a rotating handle.

6. The adjustable flange processing fixture according to claim 4, characterized in that: A control switch (12) is provided on the right end of the upper surface of the clamping platform (1), and the input end of the control switch (12) is electrically connected to an external power supply.

7. The adjustable flange processing fixture according to claim 6, characterized in that: The lower end of the steering chamber (2) is provided with a motor (11), the upper end of the output shaft of the motor (11) is fixedly connected with a second drive gear (10), the lower end of the inner wall of the rotating drum (4) is provided with a driven gear ring, the second drive gear (10) is meshed with the driven gear ring, and the input end of the motor (11) is electrically connected to the output end of the control switch (12).

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