Double-servo direct-drive screw anti-deformation water pipe pressing machine

Abstract

The utility model discloses a kind of double servo direct-drive screw rod type anti-deformation water pipe buckle pressing machine, comprising: double servo motor, speed reducer, buckle pressing transmission body, buckle pressing passive assembly, buckle pressing driving part;The double servo motor is arranged symmetrically in parallel, for generating driving force;Two speed reducers are arranged and respectively connected with the output end of double servo motor, for reducing output speed and increasing torque after output with driving force;The buckle pressing transmission body is connected with speed reducer, for receiving the driving force output by speed reducer, and conversion is axial linear thrust;The output end of buckle pressing transmission body is connected with buckle pressing passive assembly, for receiving axial linear thrust, and axial linear motion is along;Buckle pressing driving part is cooperatively arranged with buckle pressing passive assembly, for limiting buckle pressing passive assembly in radial direction to axial linear motion to buckle pressing driving part, so that radial displacement is generated in the buckle pressing passive assembly, and water pipe is buckled.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing equipment technology, and in particular to a dual servo direct drive screw type anti-deformation water pipe crimping machine. Background Technology

[0002] Existing crimping machines are hydraulically driven, which suffers from high energy loss (efficiency <60%), slow response (≥100ms), risk of oil leakage, and low pressure control accuracy (error >±3%). Hydraulic oil temperature rise leads to decreased system stability, requiring frequent maintenance over long-term use.

[0003] Some existing crimping machines also use a single servo motor drive. When the motor drives the lead screw, torque fluctuations can easily cause axial movement of the lead screw (displacement error > 0.1mm), resulting in uneven distribution of crimping pressure.

[0004] The lack of a compensation mechanism for the lateral force of the crimping core results in a deformation of the core shaft of 0.3-0.5 mm after crimping, affecting the accuracy of the sealing surface. Utility Model Content

[0005] In view of this, the main purpose of this utility model is to provide a dual servo direct drive screw type anti-deformation water pipe crimping machine.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A dual-servo direct-drive screw-type anti-deformation water pipe crimping machine includes: dual servo motors, a reducer, a crimping transmission body, a crimping passive component, and a crimping active component;

[0008] The dual servo motors are arranged symmetrically in parallel to generate driving force;

[0009] Two speed reducers are provided and each is connected to the output end of a dual servo motor, which is used to reduce the output speed of the driving force and increase the torque before output;

[0010] The clamping transmission body is connected to the reducer to receive the driving force output by the reducer and convert it into axial linear thrust.

[0011] The passive buckling component is connected to the output end of the buckling drive body, and is used to receive axial linear thrust and move linearly along the axial direction;

[0012] The active and passive crimping components are configured to limit the passive crimping component, which moves linearly along the axial direction into the active crimping component, in the radial direction, so that the passive crimping component generates radial displacement to crimp the water pipe.

[0013] Preferably, it further includes a clamping body, which is sleeved on the outside of the connection between the clamping passive component and the clamping drive body.

[0014] Preferably, the fastening transmission body is provided with a guide post, which is configured to cooperate with the fastening body so that the fastening transmission body can move forward or backward in the axial direction.

[0015] Preferably, the pressing transmission body has a cross-shaped structure, the output shaft of the reducer has a spiral inclined groove machined on its surface, and the left and right sides of the cross-shaped structure are symmetrically provided with inclined cam mechanisms inside. The output shaft of the reducer passes through the inclined cam mechanism. The spiral inclined groove and the inclined cam mechanism are configured to cooperate so that the rotational motion of the two drive shafts of the two reducers is converted into axial linear thrust.

[0016] Preferably, the crimping transmission body has a cross-shaped structure, the output shaft of the reducer is connected to a ball screw, and the ball screw is connected to the crimping transmission body so that the rotational motion of the two drive shafts of the two reducers is converted into axial linear thrust.

[0017] Preferably, it further includes an axial core-pulling drive source, the end of which is aligned with the center of the crimping passive assembly, for pushing out the crimped water pipe through axial movement changes.

[0018] Preferably, the passive clamping component includes a retaining seat and a force-bearing inclined clamping block; the retaining seat is fixedly connected to the clamping body and has a guide groove in its circumference; several force-bearing inclined clamping blocks are provided and slidably embedded in the guide groove, and are used to generate radial displacement after being subjected to the pressure of the clamping active component.

[0019] Preferably, the clamping passive assembly further includes a limiting ring, which is disposed on the end face of the retainer.

[0020] Preferably, the inner wall of the active clamping component is provided with an inclined surface, which limits the several force-bearing inclined clamping blocks of the passive clamping component, causing the force-bearing inclined clamping blocks to contract radially.

[0021] Preferably, it also includes a rear end cover, which forms a shell structure with the clamping body.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This invention replaces the hydraulic system by directly driving the lead screw with dual servo motors, and combines it with core-pulling technology to completely solve the problem of core deformation, and has the advantages of high efficiency, energy saving and high precision. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this invention, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0025] Figure 1 An exploded view of a dual-servo direct-drive screw-type anti-deformation water pipe crimping machine provided in this embodiment of the present invention.

[0026] Figure 2 This invention provides a structural schematic diagram of a dual-servo direct-drive screw-type anti-deformation water pipe crimping machine according to an embodiment of the present invention.

[0027] Figure 3 This invention provides a schematic diagram of the crimping passive component in a dual-servo direct-drive screw-type anti-deformation water pipe crimping machine.

[0028] Figure 4 This utility model provides a schematic diagram of the structure for removing the crimping body in a dual-servo direct-drive screw-type anti-deformation water pipe crimping machine. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0032] This utility model embodiment provides a dual-servo direct-drive screw-type anti-deformation water pipe crimping machine, such as... Figure 1-4 As shown, it includes:

[0033] Two servo motors are arranged symmetrically in parallel to generate driving force;

[0034] Two reducers 2 are provided and each is connected to the output end of the dual servo motors 1, which are used to reduce the output speed of the driving force and increase the torque before output;

[0035] The clamping transmission body 3 is connected to the reducer 2 to receive the driving force output by the reducer 2 and convert it into axial linear thrust.

[0036] The clamping passive component 5 is connected to the output end of the clamping transmission body 3, and is used to receive axial linear thrust and move linearly along the axial direction;

[0037] The active clamping component 6 and the passive clamping component 5 are configured to limit the passive clamping component 5, which moves linearly along the axial direction into the active clamping component 6, in the radial direction, so that the passive clamping component 5 generates radial displacement to clamp the water pipe.

[0038] This invention replaces the hydraulic system by directly driving the lead screw with dual servo motors 1, and combines core-pulling technology to completely solve the problem of core deformation, and has the advantages of high efficiency, energy saving and high precision.

[0039] Furthermore, it also includes a clamping body 4, which is sleeved on the outside of the connection between the clamping passive component 5 and the clamping transmission body 3.

[0040] Furthermore, the clamping transmission body 3 has a cross-shaped structure, and the surface of the output shaft 21 of the reducer 2 is machined with a spiral inclined groove. The left and right sides of the cross-shaped structure are symmetrically provided with inclined cam mechanisms inside. The output shaft 21 of the reducer 2 passes through the inclined cam mechanism. The spiral inclined groove and the inclined cam mechanism are configured to cooperate so that the rotational motion of the two drive shafts of the two reducers 2 is converted into axial linear thrust.

[0041] In some embodiments, the output shaft 21 of the reducer 2 can be connected to a ball screw, which is connected to the clamping transmission body 3, thereby converting the rotational motion of the two drive shafts of the two reducers 2 into axial linear thrust.

[0042] The fastening transmission body 3 is provided with a guide post 31, which is configured to cooperate with the fastening body 4 so that the fastening transmission body 3 can move forward or backward in the axial direction.

[0043] For example, two guide posts 31 are provided and are located on the upper and lower sides of the cross-shaped structure respectively. The clamping body 4 is provided with a limiting groove 41 that matches the guide posts 31 to prevent the clamping transmission body 3 from rotating under the action of the reducer 2.

[0044] Furthermore, it also includes an axial core-pulling drive source 7, the end of which is aligned with the center of the crimping passive assembly 5, for pushing out the crimped water pipe through axial movement changes.

[0045] For example, the axial core-pulling drive source 7 includes a hydraulic cylinder and an ejector. The output end of the hydraulic cylinder is connected to the ejector. The ejector passes through the center of the clamping transmission body 3 and is correspondingly arranged with the clamping passive component 5.

[0046] When there is no need to push out the water pipe, the hydraulic cylinder is in the initial position, and the end of the pusher is only aligned with the center of the clamping passive component 5 and is far away from the center of the clamping passive component 5, so as not to affect the water pipe entering the center of the clamping passive component 5.

[0047] When it is necessary to push out the crimped water pipe, the hydraulic cylinder is in a forward pushing state, and the end of the pusher gradually approaches the center of the crimping passive component 5 until the water pipe is pushed out. After completion, the hydraulic cylinder resets, and the end of the pusher exits the center of the crimping passive component 5 and moves away from the center of the crimping passive component 5.

[0048] The passive fastening component 5 includes a retaining seat 51 and a force-bearing inclined fastening block 52. The retaining seat 51 is fixedly connected to the fastening transmission body 3 and has a guide groove 53 in its circumferential direction. Several force-bearing inclined fastening blocks 52 are provided and slidably embedded in the guide groove 53, and are used to generate radial displacement after being subjected to the pressure of the fastening active component 6.

[0049] The center of the force-bearing inclined clamping block 52 forms a radial compression channel, which achieves uniform clamping and deformation resistance to the water pipe.

[0050] The inner wall of the active clamping component 6 is provided with an inclined surface. When the passive clamping component 5 moves forward along the axial direction, the inclined surface limits several force-bearing inclined clamping blocks 52 of the passive clamping component 5, causing the force-bearing inclined clamping blocks 52 to contract radially, thereby achieving clamping of the water pipe.

[0051] The passive clamping assembly 5 also includes a limiting ring 54, which is disposed on the end face of the retaining seat 51 to prevent the force-bearing inclined clamping block 52 from moving in the axial direction.

[0052] Furthermore, it also includes a rear end cover 8, which forms a shell structure with the clamping body 4.

[0053] The working process of this utility model:

[0054] Step 1: Dual Servo Synchronous Drive

[0055] The dual servo motors 1 start synchronously and output rotating power at the same speed and in opposite directions. The power is transmitted to the drive shafts on both sides after being amplified and decelerated by the reducer 2, thereby driving the clamping transmission body 3.

[0056] Step 2: Motion Conversion and Axial Propulsion

[0057] The inclined cam mechanism inside the clamping transmission body 3 converts the rotational motion of the two drive shafts into axial linear thrust.

[0058] Step 3: Radial crimping performed

[0059] The passive component 5 is pushed forward synchronously.

[0060] The force-bearing inclined clamping block 52 of the clamping passive component 5 is embedded in the 15° inclined guide groove 53 of the retaining seat 51;

[0061] When the force-bearing inclined clamping block 52 moves forward, under the radial limit of the inclined surface of the clamping active member 6, the force-bearing inclined clamping block 52 is forced to slide and contract in the center to form a closed compression channel.

[0062] Step 4: Axial core pulling and demolding

[0063] After the crimping is completed, the axial core-pulling drive source 7 is activated, and the push rod is aligned with the center of the crimping passive component 5 to push the water pipe out axially.

[0064] The inclined clamping block 52 under stress automatically expands outward under the reset action of the guide groove 53, waiting for the next cycle.

[0065] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A dual-servo direct-drive screw-type anti-deformation water pipe crimping machine, characterized in that, include: Dual servo motors, reducer, crimping transmission body, crimping passive component, crimping active component; The dual servo motors are arranged symmetrically in parallel to generate driving force; Two speed reducers are provided and each is connected to the output end of a dual servo motor, which is used to reduce the output speed of the driving force and increase the torque before output; The clamping transmission body is connected to the reducer to receive the driving force output by the reducer and convert it into axial linear thrust. The passive buckling component is connected to the output end of the buckling drive body, and is used to receive axial linear thrust and move linearly along the axial direction; The active and passive crimping components are configured to limit the passive crimping component, which moves linearly along the axial direction into the active crimping component, in the radial direction, so that the passive crimping component generates radial displacement to crimp the water pipe.

2. The dual-servo direct-drive screw-type anti-deformation water pipe crimping machine according to claim 1, characterized in that, It also includes a clamping body, which is sleeved on the outside of the connection between the clamping passive component and the clamping drive body.

3. The dual-servo direct-drive screw-type anti-deformation water pipe crimping machine according to claim 2, characterized in that, The fastening transmission body is provided with a guide post, which is configured to cooperate with the fastening body so that the fastening transmission body can move forward or backward in the axial direction.

4. The dual-servo direct-drive screw-type anti-deformation water pipe crimping machine according to claim 3, characterized in that, The pressing transmission body has a cross-shaped structure. The output shaft of the reducer is machined with a spiral inclined groove. The left and right sides of the cross-shaped structure are symmetrically arranged with inclined cam mechanisms inside. The output shaft of the reducer passes through the inclined cam mechanism. The spiral inclined groove and the inclined cam mechanism are configured to convert the rotational motion of the two drive shafts of the two reducers into axial linear thrust.

5. The dual-servo direct-drive screw-type anti-deformation water pipe crimping machine according to claim 3, characterized in that, The crimping transmission body has a cross-shaped structure. The output shaft of the reducer is connected to a ball screw, which is connected to the crimping transmission body so that the rotational motion of the two drive shafts of the two reducers is converted into axial linear thrust.

6. The dual-servo direct-drive screw-type anti-deformation water pipe crimping machine according to any one of claims 1-5, characterized in that, It also includes an axial core-pulling drive source, the end of which is aligned with the center of the crimping passive assembly, for pushing out the crimped water pipe through axial movement changes.

7. The dual-servo direct-drive screw-type anti-deformation water pipe crimping machine according to claim 6, characterized in that, The passive clamping component includes a retaining seat and a force-bearing inclined clamping block; the retaining seat is fixedly connected to the clamping body and has a guide groove in its circumference; several force-bearing inclined clamping blocks are provided and slidably embedded in the guide groove, and are used to generate radial displacement after being subjected to the pressure of the clamping active component.

8. The dual-servo direct-drive screw-type anti-deformation water pipe crimping machine according to claim 7, characterized in that, The passive clamping assembly also includes a limiting ring, which is disposed on the end face of the retainer.

9. The dual-servo direct-drive screw-type anti-deformation water pipe crimping machine according to claim 8, characterized in that, The inner wall of the active clamping component is provided with an inclined surface, which limits the several force-bearing inclined clamping blocks of the passive clamping component, causing the force-bearing inclined clamping blocks to contract radially.

10. The dual-servo direct-drive screw-type anti-deformation water pipe crimping machine according to claim 9, characterized in that, It also includes a rear end cover, which forms a shell structure with the snap-fit ​​body.

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