Steel pipe machining device
The inclined surface design of the slider and push block structure solves the problem of difficult-to-control clamping force in the steel pipe thread processing device, achieves stable clamping, avoids deformation or damage of the steel pipe, and ensures processing accuracy.
Patent Information
- Application Number
- CN202511039013.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2025-09-23
AI Technical Summary
Existing steel pipe thread processing devices have difficulty in accurately controlling the clamping force during the clamping process, resulting in deformation or damage to the steel pipe.
It adopts a slider and push block structure, and automatically adjusts the clamping force through the inclined surface design. When the clamping force reaches the threshold, the slider disengages from the vertical rod to prevent the clamping force from being too large. It includes the combined use of a frame, guide rails, push frame, sliding rod and clamping plate.
It achieves stable clamping of the steel pipe, avoids deformation or damage caused by excessive clamping force, and ensures processing accuracy.
Smart Images
Figure CN120680073A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of machine tool parts, in particular to a steel pipe processing device. Background Art
[0002] A hollow steel pipe with a hollow cross-section that needs to be threaded at the end to be assembled into a pipeline corresponding to the path requirements. This type of pipe fitting requires the steel pipe to be fixed during the threading process;
[0003] Existing steel pipe threading devices use a traditional mechanical clamping method with manual adjustment of the clamping distance. Since some of these round steel pipes have smooth surfaces and thin walls, and the existing mechanical clamping method cannot accurately control the clamping force, it is easy to cause deformation or damage to the steel pipe due to excessive adjustment force.
[0004] Therefore, a new steel pipe processing device is needed to solve the problem that the mechanical clamping method is difficult to adjust to the appropriate force to clamp the steel pipe. Summary of the Invention
[0005] The purpose of the application is to provide a new steel pipe processing device that can solve the problem that the mechanical clamping method is difficult to adjust to the appropriate force to clamp the steel pipe.
[0006] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:
[0007] The cam is provided with a plurality of guide rails, the plurality of guide rails are connected to the cam by a plurality of sliders, and the plurality of guide rails are connected to the cam by a plurality of sliders.
[0008] Furthermore, the outer shell of the rack is provided with a mounting frame, the mounting frame is provided with a fixing block, and the fixing block is provided with a mounting hole for fixing the rack in the fixing platform.
[0009] Furthermore, there is a gap between the mounting frame and the frame, the push rod passes through the gap, and a limit block is provided in the mounting frame.
[0010] Furthermore, there are four guide rails, which are symmetrically arranged at the upper and lower ends of the frame, and corresponding slides are arranged on the crossbars.
[0011] Furthermore, there are four push blocks, which are respectively arranged on both sides of the frame, and two clamping plates, both ends of which are respectively connected to the sliding rods.
[0012] Furthermore, guide holes are provided on both sides of the frame, and guide shafts are slidably provided on the guide holes so that the guide shafts are located between the two push blocks, and the guide shafts are connected to the splints.
[0013] Furthermore, openings are provided on both sides of the clamping, and the openings are located on one side of the guide hole. A connecting block is also provided in the frame, and a hinge shaft is provided on the connecting block.
[0014] Furthermore, a strip-shaped clamping piece is connected between the push block and the hinge shaft, and the clamping piece passes through the opening.
[0015] Furthermore, an arc-shaped clamping pad is provided on the clamping plate.
[0016] Furthermore, a hollow structure is provided in the middle of the propulsion frame, a guide ring is provided inside the propulsion frame, and a plurality of notches are provided on the outer wall of the propulsion frame.
[0017] By setting a push frame to drive the push rod, the raised part of the push rod pushes the horizontal bar of the square frame, which moves along the guide rail under the guidance of slider one, so that the vertical bar of the square frame drives slider two to move to the right. While slider two moves, the inclined surface two of slider two squeezes the inclined surface one of the push block, so that the push block drives the sliding rod to move inward, so that the splint set on the sliding rod clamps the workpiece. When the clamping force of the splint clamping the workpiece reaches a predetermined threshold, slider two disengages from the vertical bar under the continuous squeezing of the vertical bar and the reaction force of the push block at this time, and slider two moves to the left along inclined surface one, so that the splint stops increasing the force inward, preventing the clamping force from being too large to cause deformation or damage to the steel pipe, thereby solving the problem that the mechanical clamping method is difficult to adjust to the appropriate force to clamp the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of the base of the present invention.
[0019] Figure 2 It is a structural schematic diagram of the rack of the present invention.
[0020] Figure 3 It is a structural schematic diagram of the slider 2 and the push block of the present invention.
[0021] Figure 4 It is a cross-sectional schematic diagram of the slider 2 and the push block of the present invention.
[0022] Figure 5 It is a cross-sectional schematic diagram of the movement of the slider 2 and the push block of the present invention.
[0023] Figure 6It is a structural schematic diagram of the rollback rack and the rack of the present invention.
[0024] Figure 7 It is a schematic cross-sectional view of the push block of the present invention.
[0025] Figure 8 It is a schematic cross-sectional view of the frame of the present invention.
[0026] In the attached figure:
[0027] 1. Frame, 2. Mounting frame, 3. Pushing frame, 4. Pushing block, 5. Crossbar, 6. Base, 7. Fixing table, 8. Thread processing device;
[0028] 101. Opening, 102. Guide rod, 103. Guide rail, 104. Block, 105. Elastic member 1, 206. Ball;
[0029] 201, fixed block, 301, propulsion rod, 302, retraction frame, 303, retraction rod, 3011, protrusion 1, 3031, protrusion 2;
[0030] 401, sliding rod, 402, slider 2, 403, clamping plate, 404, clamping member, 405, connecting block, 406, elastic member 2, 407, shaft sleeve, 408, tapered sleeve, 409, clamping plate;
[0031] 4021, screw, 4022, sliding portion, 4023, inclined surface 1, 4024, inclined surface 2, 4031, receiving groove, 4041, tapered portion, 4091, pin;
[0032] 501, slider 1, 502, vertical rod. DETAILED DESCRIPTION
[0033] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0034] In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "one," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.
[0036] For the purpose of simplicity and illustration, the principles of the embodiments are described primarily with reference to examples. In the following description, many specific details are provided to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring the understanding of these embodiments. In addition, all embodiments may be used in combination with each other.
[0037] Example 1:
[0038] like Figure 1 、 Figure 2 As shown, in this embodiment, for processing steel pipe threads, the steel pipe is inserted into a fixed platform 7 provided on a base 6 for clamping, and then a thread processing device 8 provided on the other side of the fixed platform on the base 6 is used to drive the cutter head to rotate and feed to perform thread processing. However, when clamping the hollow steel pipe as a workpiece, the clamping force cannot be accurately controlled, and the steel pipe may be easily deformed or damaged due to excessive adjustment force. In order to make the clamping plate automatically adapt to the outer wall size of the steel pipe, the steel pipe processing device that can solve this problem includes the following devices:
[0039] Frame 1, the top and bottom of the frame 1 are symmetrically provided with guide rails 103; square frame, the square frame is sleeved on the outer contour of the frame 1 and is composed of a cross bar 5 and a vertical bar 502, the cross bar 5 is slidably connected to the guide rail 103 through a slider 501 and is cross-arranged with the guide rail 103; propulsion frame 3, the propulsion frame 3 is arranged on one side of the frame 1, and the upper and lower ends of the propulsion frame 3 are provided with a propulsion rod 3 with a protrusion 3011, the protrusion 3011 is located on the movement trajectory of the cross bar 5, and is used to drive the square frame to move along the direction of the guide rail 103; sliding rod 401, sliding rod 401 is set through both sides of the frame 1, and a clamping plate 403 for clamping the workpiece is provided at the inner end, and a push block 4 with a bevel 1 4023 is provided at the outer end. A slider 2 402 with a bevel 2 4024 with an angle smaller than that of the bevel 1 4023 is slidably provided on the bevel 1 4023. The slider 2 402 is located on the movement path of the vertical rod 502, and is used to make the slider 2 402 drive the push block 4 to retract, so that the clamping plate 403 clamps the workpiece, and when the clamping force reaches the threshold, the slider 2 402 is separated from the vertical rod 502 under the action of the reaction force of the push block 4.
[0040] Among them, the vertical rod 502 is located on both sides of the frame 1, and the sliding rod 401 is symmetrically arranged on both sides of the frame 1. The sliding rod 401 passes through the frame 1 horizontally. The sliding rod 401 is located at the inner end of the frame 1 and is provided with a clamping plate 403. The sliding rod 401 is located at the outer end of the frame 1 and is provided with a push block 4; the propulsion frame 3 is used to drive the propulsion rod 301, so that the protrusion 1 3011 of the propulsion rod 301 pushes the cross bar 5 to move along the guide rail 103, so that the vertical rod 502 pushes the slider 2 402 When the slider 2 402 moves, it squeezes the inclined surface 1 4023 through the inclined surface 2 4024, so that the push block 4 drives the sliding rod 401 to move inward, so that the clamping plate 403 set on the sliding rod 401 clamps the workpiece. When the clamping force of the clamping plate 403 clamping the workpiece reaches a predetermined threshold, the slider 2 402 moves along the inclined surface 1 4023 away from the horizontal rod under the continuous squeezing of the vertical rod 502 and the reaction force of the push block 4, thereby stopping the clamping plate 403 from increasing the force inward.
[0041] Specifically, the outer surface of the rack 1 is provided with a mounting frame 2, and a fixing block 201 is provided on the mounting frame 2. The fixing block 201 is provided with a mounting hole for fixing the rack 1 in the fixing platform through the mounting hole, wherein a plurality of limit protrusions are further provided on the inner side of the mounting frame 2 for limiting the left and right positions of the rack 1 and ensuring a gap between the mounting frame 2 and the rack 1. The push rod 301 passes through the gap for limiting the posture of the push rod 301. A limit block is further provided in the mounting frame 2 for limiting the front and rear positions of the rack 1.
[0042] Specifically, there are four guide rails 103, which are symmetrically arranged at the upper and lower ends of the frame 1. Corresponding slides are provided on the cross bar 5 to increase the smoothness of the movement of the cross bar 5 and prevent the cross bar 5 from offsetting during movement, resulting in asynchronous movement of the two vertical bars 502.
[0043] Specifically, there are four push blocks 4, which are respectively arranged on both sides of the frame 1, and there are two splints 403. The two ends of the splint 403 are respectively connected to the sliding rod 401, which is used to push the two sides of the splint 403 to deform the splint 403 and fit the outer wall of the steel pipe for oblique clamping to adapt to the axial processing force applied to the steel pipe.
[0044] Specifically, guide holes are provided on both sides of the frame 1, and guide shafts 102 are slidably provided on the guide holes so that the guide shafts 102 are located between the two push blocks 4. The guide shafts 102 are connected to the splint 403 to limit the middle position of the splint 403, to prevent lateral deviation and limit the posture of the splint 403 when the splint 403 is deformed, and to support the vertical rod 502 when the splint 403 is deformed to further increase the stability of the vertical rod 502.
[0045] Specifically, openings 101 are provided on both sides of the clamping, and the opening 101 is located on one side of the guide hole. A connecting block 405 is also provided in the frame 1, and a hinge shaft is provided on the connecting block 405. A strip clamping piece 404 is connected between the push block 4 and the hinge shaft. The clamping piece 404 passes through the opening to limit the upper and lower positions of the steel pipe and tighten the other side of the push block 4 to prevent the left side of the push block 4 from being squeezed for a long time and causing deformation of the push block 4.
[0046] Specifically, an arc-shaped clamping pad is provided on the clamping plate 403 .
[0047] Specifically, a hollow structure is provided in the middle of the propulsion frame 3, a guide ring is provided inside the propulsion frame 3, and a plurality of notches are provided on the outer wall of the propulsion frame 3 for facilitating adjustment and observation of the posture of the steel pipe during insertion.
[0048] Usage process:
[0049] like Figure 3 、 Figure 4 and Figure 5As shown, first, the push rod 301 is driven to feed by driving the push rack 3 set at the rear end of the frame 1. A protrusion 3011 is set on the top of the push rod 301. The protrusion 3011 contacts and pushes the cross bar 5. The cross bar 5 moves forward along the guide rail 103 through the slider at the bottom, so that the vertical rod 502 contacts the slider 2 402. At this time, the inclined surface 2 4024 of the slider 2 402 contacts the inclined surface 1 4023 of the push block 4; then, continue to push the vertical rod 502, so that the inclined surface 2 4024 of the slider 2 402 contacts and squeezes the inclined surface 1 4023 of the push block 4. Since the angle of the inclined surface 2 4024 is smaller than the angle of the inclined surface 1 4023, and the splint 403 does not contact at this time. The workpiece is pressed against the inclined surface 4024, so that the contact force of the inclined surface is greater than the reaction force from the push block 4, which can provide an inward driving force for the push block 4, so that the push block 4 drives the slide to slide inward, and drives the clamping plate 403 to slide inward; finally, when the clamping plate 403 is deformed to clamp the workpiece, it continues to push the vertical rod 502 to increase the clamping force on the workpiece until it increases to a preset threshold value, so that the push block 4 can provide a certain reaction force. The friction between the slider 2 402 and the push block 4 cannot overcome the external reaction force due to the smaller angle of the inclined surface 2 4024. The slider 2 402 performs a relative backward displacement along the inclined surface 1 4023 to adapt to the size of the workpiece, and the push block 4 stops moving inward to increase the force to prevent the clamping force from being too large and damaging the workpiece.
[0050] Among them, such as Figure 4 and Figure 5 As shown, the second slider 402 itself has a second inclined surface 4024 with an angle smaller than that of the first inclined surface 4023, and is in contact with the first inclined surface 4023 of the push block 4, and is located on the movement path of the vertical rod 502. When the square frame moves along the guide rail 103 driven by the push rod 301, the vertical rod 502 exerts a thrust on the second inclined surface 4024 of the second slider 402. The thrust direction is parallel to the first inclined surface 4023 and is in the direction away from the outside of the push block 4, that is, in the direction of causing the push block 4 to retract, pushing the second slider 402 to slide along the first inclined surface 4023. The second slider 402 moves from Figure 4 Move to the position in Figure 5 The left side view shows the position of the slider 402. At this time, the inclined surface 1 4023 gives the slider 2 402 a positive upward pressure perpendicular to the inclined surface 1 4023, which is used to balance the component of the thrust applied to the slider 2 402 in the direction perpendicular to the inclined surface. In the process of the slider 2 402 pushing the push block 4 to drive the clamping plate 403 inside the sliding rod 401 to clamp the workpiece, the workpiece generates a reaction force on the clamping plate 403. The reaction force is transmitted to the push block 4 through the sliding rod 401, causing the push block 4 to exert a reverse force on the slider 2 402, that is, the push block 4 maintains the clamping state, the cross bar continues to move to the right to the predetermined position, the slider 2 402 moves to the lower left along the inclined surface 1 4023, and the slider 2 402 moves from Figure 5 The left view position moves to Figure 5 Position of the right side view.
[0051] Example 2:
[0052] like Figure 6 As shown, on the basis of embodiment 1, a protrusion 1 3011 is provided on the propulsion rod 301, and a limit frame 302 is further provided at the front end of the frame 1. A retraction rod 303 is provided on the limit frame 302. The end of the retraction rod 303 is fixedly connected to the end of the propulsion rod 301. A protrusion 2 3031 is provided on the retraction rod 303. There is a gap between the protrusion 2 3031 and the protrusion 1 3011 for placing the cross bar 5, which is used to drive the propulsion rod 301 to drive the retraction rod by pulling back the propulsion frame 3. 303 retracts, the second protrusion 3031 abuts against the cross bar 5 and drives the cross bar 5 to reset, and the reset is completed when the limit frame 302 abuts against the frame 1, wherein a card slot 1 is provided in the middle of the cross bar 5 for cooperating with the first protrusion 3011 and the second protrusion 3031 to limit the posture of the propulsion rod 301 and the retraction rod 303, thereby limiting the left and right positions of the propulsion frame 3, ensuring that the push block 4 is pushed synchronously when the vertical rod 502 is pushed, preventing the propulsion frame 3 from tilting up and down during movement, thereby stabilizing the adjustment of the clamping force.
[0053] Specifically, such as Figure 8 As shown, a limit slot is provided in the frame 1, and an elastic member 105 is provided in the limit slot. A blocking block 104 is provided on one side of the elastic member 105, and a ball 106 is provided on the other side of the elastic member, so that a part of the ball 106 extends out of the limit slot, and a corresponding circular groove is provided on the inner side of the push rod 301, which is used to limit the front and rear position of the push rod 301 after the push rod 301 drives the vertical rod 502 to move to a predetermined position, so as to prevent the vibration generated during processing from causing the vertical rod 502 to loosen from the slider 2 402.
[0054] Specifically, such as Figure 7 As shown, the slider 2 402 can automatically reset and make the inclined guide force sufficiently stable. The slider 2 402 is provided with a through groove 1, and the through groove 1 is provided with a screw 4021; the slide is provided with a receiving groove 4031, and the receiving groove 4031 is provided with a driven shaft. The driven shaft is sleeved with a sleeve, and the sleeve is provided with a through groove 2. The end of the screw 4021 extends into the through groove 2. Elastic parts 2 406 are provided on both sides of the sleeve. The elastic part 2 406 is sleeved on the driven shaft and is used to drive the sleeve to reset, wherein the slide is a dovetail groove.
[0055] Specifically, in order to prevent the elastic member 2 406 from driving the slider 2 402 to slip, a spiral groove is provided on the driven shaft, and the end of the screw 4021 extends into the spiral groove; a clamping plate 409 is further provided in the accommodating groove 4031, and a connecting hole is provided in the middle of the clamping plate 409. A conical portion 4041 is provided on the end of the driven shaft, and a conical sleeve 408 is provided on the conical portion 4041. A conical surface 1 is provided on the conical portion 4041, and a corresponding conical surface 2 is provided on the inner wall of the conical sleeve 408. Limited spacers are provided on both sides of the outer wall of the conical sleeve 408. The limiting rod and the corresponding pin shaft 4091 are provided on the clamping plate 409. When the sleeve moves toward the middle, it drives the driven shaft to rotate so that the limiting rod contacts the pin shaft 4091. The driven shaft changes from driving the tapered sleeve 408 to rotating by the driven shaft, thereby increasing the friction between the driven shaft and the tapered sleeve 408, preventing the elastic part 2 406 from directly driving the slider 2 402 to slip when the slider 2 402 moves to the left, thereby enabling the slider 2 402 to move stably, solving the problem that the mechanical clamping method is difficult to adjust to the appropriate force to clamp the steel pipe.
[0056] Specifically, the clamping plate 409 is located at the edge of the accommodating groove 4031 . A shaft sleeve 407 is provided at the other end of the accommodating groove 4031 , and the other end of the driven shaft extends into the shaft sleeve 407 .
[0057] Although the above describes the illustrative specific implementation methods of the present application so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific implementation methods. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations based on the concept of the present application are protected.
Claims
1. A steel pipe processing device, characterized in that: include: A rack, wherein guide rails are symmetrically provided on the top and bottom of the rack; A square frame, the square frame is sleeved on the outer contour of the frame and is composed of a cross bar and a vertical bar, the cross bar is slidably connected to the guide rail through a slider and is arranged crosswise with the guide rail; A propulsion frame, the propulsion frame is arranged on one side of the frame, and a propulsion rod with a protrusion 1 is provided at the upper and lower ends of the propulsion frame, the protrusion 1 is located on the motion track of the cross bar, and is used to drive the square frame to move along the guide rail direction; The sliding rod is provided on both sides of the frame, the inner end of the sliding rod is provided with a clamping plate for clamping the workpiece, and the outer end is provided with a push block with a sloped surface 1, and a slider 2 with a sloped surface 2 with an angle smaller than that of the sloped surface 1 is slidably provided on the sloped surface 1. The slider 2 is located on the movement path of the vertical rod, and is used to enable the slider 2 to drive the push block to retract and clamp the workpiece, and when the clamping force reaches a threshold value, the slider 2 is separated from the vertical rod under the reaction force of the push block.
2. A steel pipe processing device according to claim 1, characterized in that: The outer shell of the frame is provided with a mounting frame, the mounting frame is provided with a fixing block, and the fixing block is provided with a mounting hole for fixing the frame in a fixing platform.
3. A steel pipe processing device according to claim 2, characterized in that: There is a gap between the mounting frame and the frame, the propulsion rod passes through the gap, and a limit block is arranged in the mounting frame.
4. The steel pipe processing device according to claim 1, characterized in that: There are four guide rails, which are symmetrically arranged at the upper and lower ends of the frame, and corresponding slides are arranged on the crossbar.
5. The steel pipe processing device according to claim 1, characterized in that: There are four push blocks, which are respectively arranged on both sides of the frame. There are two clamping plates, and both ends of the clamping plates are respectively connected to the sliding rods.
6. The steel pipe processing device according to claim 1, characterized in that: Guide holes are provided on both sides of the frame, and guide shafts are slidably provided on the guide holes so that the guide shafts are located between the two push blocks, and the guide shafts are connected to the clamping plates.
7. The steel pipe processing device according to claim 6, characterized in that: Openings are also provided on both sides of the clamping, and the openings are located on one side of the guide hole. A connecting block is also provided in the frame, and a hinge shaft is provided on the connecting block.
8. The steel pipe processing device according to claim 7, characterized in that: A strip-shaped clamping piece is connected between the push block and the hinge shaft, and the clamping piece passes through the opening.
9. The steel pipe processing device according to claim 1, characterized in that: The clamping plate is provided with an arc-shaped clamping pad.
10. The steel pipe processing device according to claim 1, characterized in that: A hollow structure is provided in the middle of the propulsion frame, a guide ring is provided in the propulsion frame, and a plurality of notches are provided on the outer wall of the propulsion frame.