Fixing clamp for corrugated pipe production

Abstract

The utility model relates to the technical field of corrugated pipes, in particular to a fixing clamp for corrugated pipe production, which comprises a bottom plate, a sliding rail fixedly connected to the top surface of the bottom plate, a plurality of sliding seats arranged on the sliding rail at intervals, a first driving structure arranged on one side of the sliding rail and used for driving the sliding seats, and clamp components fixedly mounted at the tops of the sliding seats respectively. The clamp assemblies are coaxially arranged, a connecting plate is arranged above the clamp assemblies, a second driving structure is arranged at the bottom of the connecting plate, a cutting machine is installed in the middle of the second driving structure, a plurality of vertical hydraulic cylinders are fixedly connected to the top face of the connecting plate at intervals, and the upper ends of the vertical hydraulic cylinders are fixedly connected to the bottom of a top plate. In the working state, the corrugated pipe sequentially and coaxially penetrates through the middle portions of the clamp assemblies. The corrugated pipe cutting device has the advantages that the clamping position can be flexibly adjusted along with the cutting position, so that the state of a corrugated pipe at the cutting position is stabilized, and the cutting quality is guaranteed; the corrugated pipe is automatically clamped and fixed, and the working efficiency is improved; and the applicability of the fixing clamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated pipes, in particular to a fixing fixture used for producing corrugated pipes. Background Art

[0002] According to the material classification, bellows can be divided into plastic bellows and metal bellows. Among them, plastic bellows are retractable pipes made of plastic. Due to its material saving, light weight and excellent physical and chemical properties, it is widely used in civil engineering, municipal engineering, highway bridges and other fields. Metal bellows are metal pipes with a wavy appearance. They can turn, rotate and retract appropriately. They are widely used in industries such as power machinery.

[0003] Since the corrugated pipe is produced continuously, it is often necessary to cut the corrugated pipe for easy placement and transportation. During the cutting process, in order to prevent the pipe from rolling, a fixing fixture is required to clamp and fix the corrugated pipe.

[0004] For example, in the patent document with patent publication number CN220407261U, a clamping device for corrugated pipe cutting is disclosed, which includes a base, a sliding plate is clamped on the top of the base, a support assembly is fixed at one end of the top of the sliding plate, a clamping assembly is also provided on the upper surface of the sliding plate, and locking assemblies are provided on both sides of the base; the support assembly includes a support plate fixed to one end of the top of the sliding plate, a sleeve is horizontally fixed inside the support plate, a support tube is movably connected inside the sleeve, a mounting frame is fixed on the surface of the support tube, a cylinder is installed on the inner side of the mounting frame, and a support sheet is provided at the telescopic end of the cylinder.

[0005] According to the existing technical literature, during the cutting process, the clamping device sets the bellows on the outer periphery of the support tube, and clamps the inner and outer sides of the bellows through the cooperation between the corresponding support sheets and the pressure blocks, and then drives the bellows to move through the sliding plate, so as to cut the corresponding position of the bellows. However, since the two adjacent clamping components are fixedly mounted on the sliding plate, the distance between the two is always fixed. At the same time, due to the retractable and turnable characteristics of the bellows, the bellows between the two clamping components will bend downward under the influence of its own weight and fit against the support tube. At this time, the blade of the cutting machine is very likely to cut the support tube when the cutting operation is performed, which will not only damage the equipment, but also aggravate the wear of the cutting blade; secondly, in order to fix the bellows, it is necessary to manually turn the knobs in sequence so that the corresponding pressure blocks are pressed on the bellows, which is time-consuming and laborious.

[0006] To this end, the utility model optimizes and improves the problems of shaking and bending at the cutting position of the corrugated tube in the prior art and the problem of manual clamping and fixing the corrugated tube. A new type of fixing clamp that can flexibly adjust the clamping position and realize automatic clamping is proposed to better solve the problems in the prior art. Utility Model Content

[0007] The utility model is to solve one of the above-mentioned technical problems, and the technical scheme adopted is: a fixing fixture for corrugated pipe production comprises a base plate, a slide rail is fixedly connected to the top surface of the base plate along its length direction, and a plurality of slide seats are arranged on the slide rail at intervals along its length direction, and the bottom of each slide seat is slidably matched with the top of the slide rail, and a first driving structure for driving each slide seat is provided on one side of the slide rail along its length direction, and a clamp assembly is fixedly installed on the top of each slide seat, respectively, and each clamp assembly is coaxially arranged and a connecting plate is provided above it, and a second driving structure is provided at the bottom of the connecting plate, and a cutting machine is installed at a corresponding position in the middle of the second driving structure, and a plurality of vertical hydraulic cylinders are fixedly connected to the top surface of the connecting plate at intervals, and the upper ends of the vertical hydraulic cylinders are respectively fixedly connected to the corresponding positions at the bottom of a top plate, and the corrugated pipe coaxially passes through the middle of each clamp assembly in sequence under working state.

[0008] In any of the above schemes, it is preferred that the clamp assembly includes a fixed sleeve, the bottom of the circumferential outer wall of the fixed sleeve is fixedly connected to the mounting groove of the top of the slide seat at a corresponding position, and a plurality of clamps are arranged on the circumferential inner wall of the fixed sleeve at intervals around its axis, and in a working state, the inner end faces of each clamp are respectively pressed against the corresponding positions of the circumferential outer wall of the corrugated tube.

[0009] In any of the above schemes, it is preferred that the clamp includes an electric cylinder, the outer end of the electric cylinder is fixedly connected to the inner wall of the fixed sleeve, the inner end of the electric cylinder is arranged toward the middle of the fixed sleeve and a connecting rod is coaxially fixedly connected to its end, and self-adjusting clamps are respectively provided on both sides of the inner end of the connecting rod.

[0010] In any of the above schemes, it is preferred that the self-adjusting clamping member includes a first clamping plate, the inner end of the first clamping plate is hinged to the inner end of the connecting rod, and the outer end of the first clamping plate is hinged to the inner end of a second clamping plate, and also includes a first compression spring and a second compression spring, one end of the first compression spring is hinged to the outer surface of the first clamping plate, the other end of the first compression spring is hinged to the circumferential outer wall of the middle part of the connecting rod, one end of the second compression spring is hinged to the outer surface of the second clamping plate, and the other end of the second compression spring is hinged to the circumferential outer wall of the outer end of the connecting rod, and in the working state, the inner surfaces of the first clamping plate and the second clamping plate are respectively pressed against the corresponding positions of the circumferential outer wall of the corrugated tube.

[0011] In any of the above schemes, it is preferred that the first driving structure includes a rack, which is fixedly mounted on the top surface of the base plate along the length direction of the slide rail, and a first motor is fixedly mounted on the side wall on the corresponding side of each slide seat, and a gear is coaxially fixedly sleeved on the end of the motor shaft of each of the first motors, and each of the gears is meshingly connected to the rack.

[0012] In any of the above schemes, preferably, the second driving structure includes two mounting plates arranged at intervals, the two mounting plates are respectively fixedly connected to the bottoms of the two ends of the connecting plate, a screw rod is horizontally arranged in the space between the two mounting plates, the two ends of the screw rod are respectively movably inserted in the rotating holes at the corresponding positions of the two mounting plates, a positioning rod is horizontally arranged below the screw rod, the two ends of the positioning rod are respectively fixedly connected to the corresponding positions of the inner side walls of the two mounting plates, and also includes a slider, threaded holes and limiting holes are respectively horizontally opened at the corresponding positions of the slider, the threaded section of the screw rod is threadedly connected to the threaded hole, the middle part of the positioning rod is movably connected to the limiting hole, and the top of the cutting machine is fixedly connected to the bottom of the slider.

[0013] In any of the above schemes, preferably, a second motor is fixedly provided on the outer side of one of the mounting plates, and the end of the screw rod at the corresponding position passes through the rotating hole and is coaxially fixedly connected to the motor shaft of the second motor through a coupling.

[0014] In any of the above solutions, preferably, a plurality of legs are fixedly installed at intervals on the bottom of the base plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. Under the cooperation of the gear and the rack, the utility model can drive each slide to move automatically along the slide rail through the first motor, and then move the corresponding fixed sleeve to the corresponding position of the corrugated pipe, and at the same time clamp the corrugated pipe through the clamp in the fixed sleeve, so that the fixing clamp can flexibly adjust the clamping position according to the cutting position, thereby stabilizing the state of the corrugated pipe at the cutting position and avoiding shaking and bending, so as to ensure the cutting quality.

[0017] 2. The utility model extends the telescopic rod of the electric cylinder to drive the connecting rod to move flexibly accordingly, so that the first clamping plate and the second clamping plate are pressed against the corrugated pipe, thereby realizing automatic clamping and fixing of the corrugated pipe, thereby improving work efficiency. At the same time, the electric cylinder has a certain telescopic stroke, which can improve the applicability of the fixing fixture and make it adaptable to most corrugated pipes of different diameters.

[0018] 3. The utility model hinges the connecting rod, the first clamping plate and the second clamping plate in sequence, so that the opening angles of the first clamping plate and the second clamping plate can be flexibly adjusted, thereby better adapting to corrugated pipes of different diameters. At the same time, under the elastic action of the first compression spring and the second compression spring, the first clamping plate and the second clamping plate can be pushed to ensure stable clamping, and deformation of the corrugated pipe due to excessive clamping can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the specific implementation of the utility model, the following will briefly introduce the drawings required for the specific implementation. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a structural schematic diagram of the fixing fixture of the utility model in the front view direction.

[0021] Figure 2 It is a schematic diagram of the connection structure of the clamp assembly of the utility model when viewed from the side.

[0022] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0023] In the figure, 1, bottom plate; 2, slide rail; 3, slide seat; 4, connecting plate; 5, vertical hydraulic cylinder; 6, top plate; 7, bellows; 8, fixed sleeve; 9, electric cylinder; 10, connecting rod; 11, first clamping plate; 12, second clamping plate; 13, first compression spring; 14, second compression spring; 15, rack; 16, first motor; 17, gear; 18, mounting plate; 19, lead screw; 20, positioning rod; 21, second motor; 22, slider; 23, threaded hole; 24, limit hole; 25, support foot; 26, cutting machine. DETAILED DESCRIPTION

[0024] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. Figure 1-Figure 3 as shown in .

[0025] A fixing fixture for the production of corrugated pipes comprises a base plate 1, a slide rail 2 is fixedly connected to the top surface of the base plate 1 along its length direction, a plurality of slide seats 3 are arranged at intervals on the slide rail 2 along its length direction, the bottom of each slide seat 3 is slidably connected to the top of the slide rail 2, a first driving structure for driving each slide seat 3 is arranged on one side of the slide rail 2 along its length direction, a clamp assembly is fixedly installed on the top of each slide seat 3, each clamp assembly is coaxially arranged and a connecting plate 4 is arranged above it, a second driving structure is arranged at the bottom of the connecting plate 4, a cutting machine 26 is installed at a corresponding position in the middle of the second driving structure, a plurality of vertical hydraulic cylinders 5 are fixedly connected to the top surface of the connecting plate 4 at intervals, the upper end of each vertical hydraulic cylinder 5 is fixedly connected to the corresponding position of the bottom of a top plate 6, and a bellows 7 coaxially passes through the middle of each clamp assembly in sequence under working condition.

[0026] The bottom plate 1 is fixedly arranged in the horizontal direction, the slide rail 2 is fixedly installed on the top plane of the bottom plate 1 along the length direction thereof, there are four slide seats 3, a sliding groove that can be fitted with the outer surface of the upper part of the slide rail 2 is provided at the bottom of the slide seat 3, and the four slide seats 3 are sequentially installed on the slide rail 2 at intervals and slide freely along the slide rail 2 under the action of the first driving structure. A clamp assembly is fixedly installed on the top of each slide seat 3, and the clamp assembly can be driven to move horizontally by the slide seat 3, so that the spacing between the clamp assemblies can be flexibly adjusted.

[0027] The top plate 6 is fixedly arranged in the horizontal direction, and the connecting plate 4 is fixedly installed below the top plate 6 by a plurality of vertical hydraulic cylinders 5, and a second driving structure is arranged on the connecting plate 4. An existing cutter 26 is fixedly installed at the corresponding position of the second driving structure, and the cutting blade of the cutter 26 is arranged vertically downward, and the cutter 26 is equipped with an existing driving motor to drive the cutting blade 26 to work and rotate. The second driving structure can make the cutter 26 move flexibly in the horizontal direction, so as to quickly move the blade of the cutter 26 to the corresponding cutting position.

[0028] When the utility model is working, the bellows 7 is first coaxially passed through each clamp assembly in sequence, and then the first driving structure is controlled to work, so that the two clamp assemblies on the left and right sides are respectively moved to the left and right ends of the slide rail 2, and the two are controlled to work so as to fix and clamp the bellows 7. Then the cutting position of the bellows 7 is determined, and after the cutting position is determined, the first driving structure is used to control the two sets of clamp assemblies in the middle to move to the left and right sides of the cutting position respectively, so as to ensure the stability of the bellows 7 at the cutting position, and avoid the bellows 7 from bending or shaking during the cutting process, thereby affecting the cutting quality.

[0029] Finally, the cutting machine 26 is adjusted to the cutting position through the second driving structure, and then the connecting plate 4 is driven downward by extending the telescopic rod of the vertical hydraulic cylinder 5, thereby driving the cutting machine 26 to move downward synchronously to between the two clamp assemblies located in the middle until its cutting blade completes the cutting work at the cutting position of the corrugated tube 7.

[0030] In any of the above schemes, it is preferred that the clamp assembly includes a fixed sleeve 8, the bottom of the circumferential outer wall of the fixed sleeve 8 is fixedly connected to the mounting groove on the top of the slide seat 3 at the corresponding position, and a plurality of clamps are arranged on the circumferential inner wall of the fixed sleeve 8 at intervals around its axis. In the working state, the inner end faces of each clamp are respectively pressed against the corresponding positions of the circumferential outer wall of the corrugated tube 7.

[0031] The axial direction of the fixed sleeve 8 is arranged parallel to the length direction of the slide rail 2, and the fixed sleeve 8 is fixed on the slide seat 3. The clamps can be extended and retracted, and there are four of them. The four clamps are evenly spaced around the axial direction of the fixed sleeve 8, and the outer ends of each clamp are fixedly installed at the corresponding positions of the circumferential inner surface of the fixed sleeve 8. The slide seat 3 drives the fixed sleeve 8 to move horizontally along the slide rail 2, and then drives the four clamps to move horizontally, so that the clamping position can be flexibly adjusted to ensure that the cutting position of the corrugated tube 7 is in a stable state without shaking or bending.

[0032] In any of the above schemes, it is preferred that the clamp includes an electric cylinder 9, the outer end of the electric cylinder 9 is fixedly connected to the inner wall of the fixed sleeve 8, the inner end of the electric cylinder 9 is arranged toward the middle of the fixed sleeve 8 and a connecting rod 10 is coaxially fixedly connected at its end, and self-adjusting clamping parts are respectively arranged on both sides of the inner end of the connecting rod 10.

[0033] The outer end of the electric cylinder 9 is fixedly mounted on a mounting seat at a corresponding position on the inner wall of the fixed sleeve 8, and its inner end points to the center of the fixed sleeve 8. When the electric cylinder 9 is working, the end of its telescopic rod extends to drive the connecting rod 10 to move toward the center of the fixed sleeve 8, thereby pressing the self-adjusting clamp against the outer wall of the corrugated tube 7. The telescopic movement of the electric cylinder 9 can realize clamping of most corrugated tubes 7 of different diameters, thereby improving the applicability of the fixing fixture. At the same time, automatic clamping can be realized through the automated structure, avoiding manual operation, thereby improving work efficiency.

[0034] In any of the above schemes, it is preferred that the self-adjusting clamping member includes a first clamping plate 11, the inner end of the first clamping plate 11 is hinged to the inner end of the connecting rod 10, and the outer end of the first clamping plate 11 is hinged to the inner end of a second clamping plate 12, and also includes a first compression spring 13 and a second compression spring 14, one end of the first compression spring 13 is hinged to the outer surface of the first clamping plate 11, the other end of the first compression spring 13 is hinged to the circumferential outer wall of the middle part of the connecting rod 10, one end of the second compression spring 14 is hinged to the outer surface of the second clamping plate 12, and the other end of the second compression spring 14 is hinged to the circumferential outer wall of the outer end of the connecting rod 10, and in the working state, the inner surfaces of the first clamping plate 11 and the second clamping plate 12 are respectively pressed against the corresponding positions of the circumferential outer wall of the bellows 7.

[0035] The inner ends of the first clamping plates 11 on both sides are hinged to the inner ends of the connecting rods 10 through pins, and the inner ends of the second clamping plates 12 on both sides are hinged to the outer ends of the first clamping plates 11 on the corresponding sides through pins. The hinge structure allows the opening angles of the two first clamping plates 11 and the two second clamping plates 12 to be flexibly changed. At the same time, under the push of the two first compression springs 13 and the two second compression springs 14, the corresponding first clamping plates 11 and the second clamping plates 12 can achieve a certain clamping to the inner side. In this way, when the corrugated tube 7 passes through the middle of the fixed sleeve 8, under the action of the electric cylinder 9 and the push of the two first compression springs 13 and the two second compression springs 14, the two first clamping plates 11 and the two second clamping plates 12 can clamp and fix the corrugated tubes 7 of different diameters at a suitable opening angle. At the same time, the first compression springs 13 and the second compression springs 14 can also achieve a certain unloading force to avoid deformation of the corrugated tube 7 caused by excessive clamping.

[0036] In any of the above schemes, it is preferred that the first driving structure includes a rack 15, which is fixedly installed on the top surface of the base plate 1 along the length direction of the slide rail 2, and a first motor 16 is fixedly installed on the side wall of the corresponding side of each slide seat 3, and a gear 17 is coaxially fixedly sleeved on the end of the motor shaft of each first motor 16, and each gear 17 is meshedly connected to the rack 15.

[0037] The first motors 16 are fixedly mounted on the side walls of the same side of each slide 3, and the motor shafts of each first motor 16 are arranged perpendicular to the corresponding side walls of the slide 3. At the same time, a sleeve gear 17 is fixedly connected at the end thereof by a key connection, and then each gear 17 is meshed with the rack 15. The first motors 16 are in operation, and under the meshing of the gear 17 and the rack 15, the corresponding slides 3 can be driven to move along the slide rail 2, thereby driving each fixed sleeve 8 and its internal structure to move horizontally together.

[0038] In any of the above schemes, it is preferred that the second driving structure includes two spaced-apart mounting plates 18, the two mounting plates 18 are respectively fixedly connected to the bottoms of the two ends of the connecting plate 4, a screw rod 19 is horizontally provided in the space between the two mounting plates 18, the two ends of the screw rod 19 are respectively movably inserted in the rotating holes at the corresponding positions of the two mounting plates 18, a positioning rod 20 is horizontally provided below the screw rod 19, the two ends of the positioning rod 20 are respectively fixedly connected to the corresponding positions of the inner side walls of the two mounting plates 18, and also includes a slider 22, threaded holes 23 and limiting holes 24 are respectively horizontally opened at the corresponding positions of the slider 22, the threaded section of the screw rod 19 is threadedly connected to the threaded hole 23, the middle part of the positioning rod 20 is movably connected to the limiting hole 24, and the top of the cutting machine 26 is fixedly connected to the bottom of the slider 22.

[0039] The upper ends of the two mounting plates 18 are respectively welded and fixed to the bottoms of the two ends of the connecting plate 4, and the two ends of the screw rod 19 are respectively assembled and connected with the bearings in the corresponding mounting holes of the two mounting plates 4 by means of key connection, so as to realize the free rotation of the screw rod 19, and the threaded section in the middle of the screw rod 19 is matched and connected with the threaded hole 23 on the slider 22, and a positioning rod 20 with a smooth outer surface is fixedly provided at the lower end of the screw rod 19, and the middle part of the positioning rod 20 is movably connected with the limiting hole 24 with a smooth inner surface on the slider 22. When the screw rod 19 rotates, the rotation of the slider 22 can be limited by the movable connection between the positioning rod 20 and the limiting hole 24, and the slider 22 is finally moved horizontally along the screw rod 19 through the threaded connection between the screw rod 19 and the threaded hole 23, thereby driving the cutting machine 26 to move horizontally.

[0040] In any of the above schemes, preferably, a second motor 21 is fixedly provided on the outer side of one of the mounting plates 18, and the end of the screw rod 19 at the corresponding position passes through the rotating hole and is coaxially fixedly connected to the motor shaft of the second motor 21 through a coupling.

[0041] The second motor 21 is fixedly mounted on the outer side of the corresponding mounting plate 18 through the motor frame, and the same side end of the screw rod 19 passes through the corresponding bearing shaft hole there, and is coaxially fixedly connected to the motor shaft of the second motor 21 through a coupling. In this way, driven by the second motor 21, the screw rod 19 can automatically rotate, so that the cutting machine 26 can automatically move horizontally.

[0042] In any of the above solutions, preferably, a plurality of legs 25 are fixedly installed at intervals on the bottom of the base plate 1 .

[0043] The bottom plate 1 is fixed on the ground at the corresponding work station by the supporting feet 25, so as to reduce the risk of rusting of the bottom plate 1.

[0044] Specific working principle:

[0045] First, the bellows 7 is coaxially passed through each fixed sleeve 8 in sequence, and then the corresponding first motor 16 is controlled to work, so that under the engagement of the gear 17 and the rack 15, the two slide seats 3 on the left and right sides are respectively moved to the left and right ends of the slide rail 2, and further drive the two fixed sleeves 8 on the left and right sides to move to corresponding positions, and then the telescopic rods of each electric cylinder 9 in the two are controlled to extend synchronously. Under the action of the electric cylinder 9 and the push of the first compression spring 13 and the second compression spring 14, the first clamping plate 11 and the second clamping plate 12 can clamp the bellows 7 of different diameters at a suitable opening angle, thereby fixing the bellows 7.

[0046] Afterwards, according to the cutting position of the corrugated tube 7, the two middle slides 3 are controlled by the same operation to drive the corresponding fixed sleeves 8 to move to the left and right sides of the cutting position respectively, and the corresponding first clamping plates 11 and second clamping plates 12 are pressed against the corrugated tube 7 through the electric cylinder 9, so as to fix and clamp the cutting position of the corrugated tube 7, so that it is always in a stable state during the cutting process, ensuring that it will not shake or bend, thereby improving the cutting quality.

[0047] Finally, the second motor 21 is controlled to work, and through the movable connection between the positioning rod 20 and the limiting hole 24, and the threaded connection between the screw rod 19 and the threaded hole 23, the slider 22 is finally moved horizontally along the screw rod 19, thereby driving the cutter 26 to move horizontally until the cutting blade of the cutter 26 moves to just above the cutting position of the corrugated tube 7, and then under the action of the vertical hydraulic cylinder 5, the cutter 26 moves downward to complete the cutting of the corrugated tube 7.

[0048] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

[0049] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. Fixing fixture for corrugated pipe production, Features: The invention comprises a bottom plate (1), a slide rail (2) is fixedly connected to the top surface of the bottom plate (1) along its length direction, a plurality of slide seats (3) are arranged at intervals on the slide rail (2) along its length direction, the bottom of each slide seat (3) is slidably connected to the top of the slide rail (2), a first driving structure for driving each slide seat (3) is arranged on one side of the slide rail (2) along its length direction, a clamp assembly is fixedly installed on the top of each slide seat (3), each clamp assembly is coaxially arranged and a connecting plate (4) is arranged above it, a second driving structure is arranged at the bottom of the connecting plate (4), a cutting machine (26) is installed at a corresponding position in the middle of the second driving structure, a plurality of vertical hydraulic cylinders (5) are fixedly connected to the top surface of the connecting plate (4) at intervals, the upper end of each vertical hydraulic cylinder (5) is fixedly connected to a corresponding position on the bottom of a top plate (6), and a bellows (7) coaxially passes through the middle of each clamp assembly in sequence under working state.

2. The fixing fixture for corrugated pipe production according to claim 1, Features: The clamp assembly comprises a fixed sleeve (8), the bottom of the circumferential outer wall of the fixed sleeve (8) is fixedly connected to the mounting groove at the top of the slide seat (3) at a corresponding position, and a plurality of clamps are arranged on the circumferential inner wall of the fixed sleeve (8) at intervals around its axis. In a working state, the inner end faces of the clamps are respectively pressed against the corresponding positions of the circumferential outer wall of the corrugated tube (7).

3. The fixing fixture for corrugated pipe production according to claim 2, Features: The clamp comprises an electric cylinder (9), the outer end of the electric cylinder (9) being fixedly connected to the inner wall of the fixed sleeve (8), the inner end of the electric cylinder (9) being arranged toward the middle of the fixed sleeve (8) and having a connecting rod (10) coaxially fixedly connected to its end, and self-adjusting clamping parts being respectively arranged on both sides of the inner end of the connecting rod (10).

4. The fixing fixture for corrugated pipe production according to claim 3, Features: The self-adjusting clamping member comprises a first clamping plate (11), the inner end of the first clamping plate (11) is hinged to the inner end of the connecting rod (10), the outer end of the first clamping plate (11) is hinged to the inner end of a second clamping plate (12), and further comprises a first compression spring (13) and a second compression spring (14), one end of the first compression spring (13) is hinged to the outer surface of the first clamping plate (11), the other end of the first compression spring (13) is hinged to the circumferential outer wall of the middle part of the connecting rod (10), one end of the second compression spring (14) is hinged to the outer surface of the second clamping plate (12), the other end of the second compression spring (14) is hinged to the circumferential outer wall of the outer end of the connecting rod (10), and in a working state, the inner surfaces of the first clamping plate (11) and the second clamping plate (12) are respectively pressed against corresponding positions of the circumferential outer wall of the bellows (7).

5. The fixing fixture for corrugated pipe production according to claim 4, Features: The first driving structure comprises a rack (15), the rack (15) being fixedly mounted on the top surface of the base plate (1) along the length direction of the slide rail (2), a first motor (16) being fixedly mounted on the side wall on the corresponding side of each slide seat (3), a gear (17) being coaxially fixedly sleeved on the end of the motor shaft of each first motor (16), and each gear (17) being meshingly connected to the rack (15).

6. The fixing fixture for corrugated pipe production according to claim 5, Features: The second driving structure comprises two spaced-apart mounting plates (18), the two mounting plates (18) being fixedly connected to the bottoms of both ends of the connecting plate (4), a screw rod (19) being horizontally arranged in the space between the two mounting plates (18), the two ends of the screw rod (19) being movably inserted into rotating holes at corresponding positions of the two mounting plates (18), a positioning rod (20) being horizontally arranged below the screw rod (19), the two ends of the positioning rod (20) being fixedly connected to corresponding positions of the inner side walls of the two mounting plates (18), and a slider (22), a threaded hole (23) and a limiting hole (24) being horizontally opened at corresponding positions of the slider (22), the threaded section of the screw rod (19) being threadedly connected to the threaded hole (23), the middle part of the positioning rod (20) being movably connected to the limiting hole (24), and the top of the cutting machine (26) being fixedly connected to the bottom of the slider (22).

7. The fixing fixture for corrugated pipe production according to claim 6, Features: A second motor (21) is fixedly mounted on the outer side of one of the mounting plates (18), and an end portion of the screw rod (19) at a corresponding position passes through a rotary hole and is coaxially fixedly connected to a motor shaft of the second motor (21) via a coupling.

8. The fixing fixture for corrugated pipe production according to claim 7, Features: A plurality of supporting feet (25) are fixedly installed at intervals on the bottom of the base plate (1).

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