manual pipe bending station

Abstract

The application relates to the technical field of pipe bending, and discloses a manual pipe bending table which comprises a clamping assembly and a pipe bending module; the clamping assembly is used for fixing a pipe; the pipe bending module comprises a shaping assembly and a bending assembly, and a gap for the pipe to pass through is formed between the shaping assembly and the bending assembly; the shaping assembly is used for abutting against the pipe, and the bending assembly is used for bending the pipe; wherein, in the process of bending the pipe, the bending assembly is always attached to the bent part of the pipe. The application solves the technical problem that the pipe bending equipment in the related art has poor adaptability when responding to pipes with different sizes and different processing requirements.

Description

Technical Field

[0001] This invention relates to the field of pipe bending technology, and more particularly to a manual pipe bending table. Background Technology

[0002] In pipe processing, bending is often required. Manual pipe bending equipment is widely used in small and medium-sized enterprises or on-site construction scenarios due to its flexible operation, low cost, and lack of reliance on external power. However, traditional pipe bending equipment often uses a fixed arc-shaped shaping device, the curvature of which directly affects the bending radius of the pipe. Furthermore, for different pipe sizes and processing requirements, multiple models of pipe benders are needed, each with its own arc radius and groove shape for fitting the pipe surface, resulting in poor adaptability of existing pipe benders. Summary of the Invention

[0003] This application discloses a manual pipe bending table to solve the technical problem that pipe bending equipment in the related art has poor adaptability when dealing with pipes of different sizes and different processing requirements.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A manual pipe bending station, comprising:

[0006] Clamping assembly for securing pipe fittings;

[0007] The pipe bending module includes a shaping component and a bending component, with a gap between the shaping component and the bending component for the pipe fitting to pass through; the shaping component is detachably provided with a shaping seat for holding the pipe fitting, and the bending component is detachably provided with a replacement groove for bending the pipe fitting; the shaping seat and the replacement groove are used to adapt to pipe fittings of different sizes and to meet different processing requirements;

[0008] During the bending process of the pipe fitting, the replacement groove always abuts the bent part of the pipe fitting against the shaping seat.

[0009] Optionally, it also includes a worktable; a shaping component is disposed on the worktable; a clamping component is slidably disposed on the worktable; the worktable is provided with a first slide groove; and a bending component is slidably disposed in the first slide groove.

[0010] Optionally, the bending assembly includes a contact and a first drive, the first drive being used to drive the contact to move along a first groove and contact the bent portion of the tube.

[0011] Optionally, the contact element includes a support base and a rotating plate, the rotating plate being rotatably mounted on the support base; a replacement slot is inserted into the rotating plate;

[0012] When the contacting element moves and comes into contact with the pipe fitting, the rotating plate rotates, causing the replacement groove to fit into the bent part of the pipe fitting.

[0013] Optionally, the first driving component includes a lead screw and a handwheel; the handwheel is connected to one end of the lead screw; the lead screw is mounted on the worktable and connected to the support base by a thread; rotating the handwheel controls the rotation of the lead screw connected to it, thereby controlling the movement of the support base;

[0014] Alternatively, the first driving element includes a handle and a hinge seat; the handle is rotatably mounted on the worktable via the hinge seat, and one end of the handle slides against the support seat; by rotating the other end of the handle, the support seat is forced to move.

[0015] Optionally, the contact element may also include a reset part; the reset part is disposed on the support base and connected to the rotating plate, and is used to reset after the rotating plate rotates.

[0016] Optionally, the shaping seat and the replacement groove are respectively provided with tube grooves on the side that contacts the tube fitting;

[0017] When the pipe is bent, the groove of the replacement slot fits into the bent part of the pipe, and the groove of the shaping seat fits into the bent part of the pipe.

[0018] Optionally, the worktable is also provided with a second slide; the shaping assembly also includes a second drive member; the shaping seat is disposed on the second drive member; the second drive member is disposed on the second slide and controls the shaping seat to move along the second slide; when changing shaping seats of different sizes, the second drive member drives the shaping seat to move so that the shaping seat abuts against the tube.

[0019] Optionally, the second driving component includes a first slider, a lead screw, and a handwheel; a shaping seat is disposed on the first slider; the handwheel is connected to one end of the lead screw; the lead screw is disposed on the worktable and is threadedly connected to the first slider; the rotation of the lead screw connected to it is controlled by rotating the handwheel, thereby controlling the movement of the first slider.

[0020] Optionally, the clamping assembly includes a moving part; the moving part is disposed on the worktable and includes a sliding seat and a limiting rod; the limiting rod is disposed on the worktable; the sliding seat moves along the limiting rod;

[0021] And / or, the clamping assembly includes a mounting base, a rotating sleeve, and a fixing member; the rotating sleeve is rotatably disposed in a mounting hole in the mounting base; the pipe passes through the rotating sleeve and is fixed to the rotating sleeve by the fixing member.

[0022] The technical solution adopted in this invention can achieve the following beneficial effects:

[0023] 1. The present invention provides a manual pipe bending table, which fixes the pipe by clamping components, and then the bending components press the pipe onto the shaping components for bending. By replacing the detachable shaping seat and replacement slot, it can accommodate pipes of different sizes. Furthermore, by changing the overall size of the shaping seat, the bending radius of the pipe can be changed, thereby improving the adaptability of the pipe bending table of the present invention to pipes of different sizes and processing requirements.

[0024] 2. A manual pipe bending table of the present invention, wherein the shaping seat is driven by the second driving member to slide on the worktable. After changing the shaping seat with different radii, the distance between the first slider and the pipe is adjusted so that the pipe groove of the shaping seat can always be adapted to and fit the pipe to meet the processing requirements of different bending radii when processing pipes.

[0025] 3. A manual pipe bending table of the present invention has a rotating plate rotatably mounted on a support base. When bending the pipe, the rotating plate rotates as the support base moves, so that the pipe groove on the replacement groove on the rotating plate is always in contact with the pipe. The pipe groove provides a guide path for the pipe, so that the pipe moves along the pipe groove after bending, reducing the risk of pipe deviation during bending due to lack of a guide path. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall one-side structure disclosed in some embodiments of this application;

[0028] Figure 2 It is attached Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3 It is attached Figure 1 Enlarged view at point B in the middle;

[0030] Figure 4 This is a schematic diagram of the overall structure on the other side of some embodiments disclosed in this application;

[0031] Figure 5 It is attached Figure 4 Enlarged view at point C;

[0032] Figure 6 This is a disassembly diagram of the clamping components;

[0033] Figure 7 This is a partial top view of the bending position of the pipe disclosed in some embodiments of this application.

[0034] In the picture:

[0035] 1-Workbench, 2-Bending assembly, 201-First slide rail, 202-First slider, 203-Support plate, 204-Rotating plate, 205-Connecting rod, 206-Third slider, 207-Spring, 208-Third slide rail, 209-Matching rod, 210-Handle, 211-Hinge seat, 212-Matching groove, 213-Replacement groove, 3-Shaping assembly, 301-Second slide rail, 302-Lead screw, 30 3-Second slider, 304-Shaping seat, 305-Mounting post, 306-Handwheel, 4-Clamping assembly, 401-Sliding seat, 402-Limiting rod, 403-Mounting seat, 404-Rotating hole, 405-Rotating sleeve, 406-Fixing bolt, 407-Scale, 408-Limiting groove, 409-Pipe sleeve, 410-Limiting plate, 411-Pointer, 412-Scale, 5-Optional box, 6-Pipe. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0037] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] Because the shaping device used to constrain the bending shape of pipe fittings on existing pipe bending equipment is usually fixed, it cannot adjust the bending radius of the pipe fittings and is difficult to adapt to pipe fittings of different diameters, resulting in poor adaptability of existing pipe bending equipment. Therefore, the present invention replaces the shaping seat 304 and the replacement groove 213 in a detachable manner to adapt to different processing requirements.

[0039] The following is in conjunction with the appendix Figures 1 to 7 The present application provides a detailed description of a manual pipe bending station through specific embodiments and application scenarios.

[0040] like Figure 1-3As shown, the present invention provides a manual pipe bending table, including a worktable 1, a clamping assembly 4 and a pipe bending module; the worktable 1 is used to install the clamping assembly 4 and the pipe bending module, and the top processing plane of the worktable 1 provides an installation position and operation support for the clamping assembly 4 and the pipe bending module;

[0041] The clamping assembly 4 is set on the worktable 1 and is used to clamp and fix the pipe fitting to be processed;

[0042] The pipe bending module is used to bend the part of the pipe to be processed. The pipe bending module includes a shaping component 3 and a bending component 2. The shaping component 3 is used to provide support for the bending of the pipe. A gap is formed between the shaping component 3 and the bending component 2 for the pipe to pass through. The bending component 2 is used to press the pipe against the shaping component 3 so that the pipe bends.

[0043] The shaping component 3 is detachably provided with a shaping seat 304 for abutting the pipe fitting, and the bending component 2 is detachably provided with a replacement groove 213 for bending the pipe fitting; the shaping seat 304 and the replacement groove 213 are respectively used to contact the pipe fitting, and a pipe groove is provided on the side of the shaping seat 304 and the replacement groove 213 that contacts the pipe fitting.

[0044] Specifically, the cross-section of the pipe groove is arc-shaped, which is used to fit with pipe fittings of a specific diameter. When bending the pipe fitting, it increases the contact area of ​​the pipe fitting and reduces the pressure generated during bending, thereby reducing the risk of extrusion deformation of the pipe fitting during bending.

[0045] Specifically, in order to enable the shaping seat 304 and the replacement groove 213 to adapt to pipe fittings of different sizes, the shaping seat 304 and the replacement groove 213 with the corresponding size of pipe groove can be replaced, so that the pipe fitting can always correspond and engage with the pipe groove on the shaping seat 304 and the replacement groove 213; when the pipe fitting is bent, the pipe groove of the replacement groove 213 fits with the bent part of the pipe fitting, so as to provide a guiding path for the pipe fitting, so that the pipe fitting moves along the pipe groove after bending; the pipe groove of the shaping seat 304 fits with the bent part of the pipe fitting to constrain the bending shape of the pipe fitting.

[0046] Specifically, when dealing with the need for different bending radii during pipe fitting processing, a shaping seat 304 with the corresponding radius can be replaced; preferably, the shaping seat 304 is cylindrical, and the pipe groove is set on the side wall around its axis. The shaping seat 304 with the same radius can be selected to support the pipe fitting according to the corresponding bending radius.

[0047] like Figure 1 As shown, in one embodiment, since the bending of the pipe requires the bending component 2 to move the bending part of the pipe, the bending component 2 needs to move and simultaneously abut against the part of the pipe to be bent, and press the pipe onto the shaping seat 304 for bending.

[0048] The workbench 1 is provided with a first slide groove 201 for providing a moving path for the bending assembly 2; the bending assembly 2 includes a contact member and a first driving member; the contact member is used to contact the tube and bend it along the tube groove of the shaping seat 304; the first driving member is used to drive the contact member to move along the first slide groove 201.

[0049] like Figure 2 As shown, in one embodiment, when the contact member needs to bend the pipe, a movement path for bending the pipe is provided, thereby reducing the risk of pipe offset.

[0050] The contact element includes a support base and a rotating plate 204. The rotating plate 204 is rotatably mounted on the support base, which is driven by the first driving element. When the rotating plate 204 contacts the pipe, it rotates as the pipe bends and always stays in contact with the pipe. The groove on the rotating plate 204 not only fits in contact with the surface of the pipe, increasing the contact area and reducing the risk of the pipe being squeezed when it bends, but also provides a movement path for the pipe to bend, reducing the offset.

[0051] Specifically, a plug-in groove is provided on the side of the rotating plate 204 near the shaping component 3, so that the replacement groove 213 is plugged into the rotating plate 204 through the plug-in groove and fixed by bolts, which facilitates the replacement groove 213 and makes the pipe groove on it fit with the pipe fitting.

[0052] In one embodiment, a reset part is also provided between the support base and the rotating plate 204, which is used to reset the rotating plate 204 after rotation so as to perform the next bending of the pipe fitting;

[0053] This embodiment includes two solutions:

[0054] Option 1: The reset unit includes a connecting rod 205 and an elastic element; one end of the connecting rod 205 is hinged to one end of the rotating plate 204, and the other end is connected to the elastic element; the elastic element is disposed on the support base; when the rotating plate 204 contacts and rotates with the pipe, the rotating plate 204 causes the elastic element to undergo elastic deformation through the connecting rod 205 to store elastic potential energy; when the rotating plate 204 separates from the pipe, the elastic element releases the elastic potential energy, and the connecting rod 205 controls the rotating plate 204 to reset.

[0055] Specifically, the elastic element includes a third slider 206, a sliding rod, and a spring 207; a third groove 208 is provided on the support base to provide displacement space for the movement of the third slider 206; the sliding rod is disposed in the third groove 208, so that the third slider 206 slides on the sliding rod, and the sliding rod restricts the movement path of the third slider 206 along the sliding rod; one end of the spring 207 is connected to the third slider 206, and the other end is connected to one end of the third groove 208; so that when the third slider 206 moves along the sliding rod and compresses or stretches the spring 207, the spring 207 can always return to its initial position due to its properties;

[0056] Option 2: The reset part includes a torsion spring, which is disposed at the rotatable connection between the rotating plate 204 and the support base. It should be noted that resetting the workpiece by setting a torsion spring is a common technical means used by those skilled in the art. Generally, the torsion spring is wound around the rotating shaft and then its two ends are connected to the workpiece respectively. This is not an improvement of the present invention and will not be described in detail here.

[0057] When the rotating plate 204 contacts and rotates with the pipe, the torsion spring twists to store elastic potential energy. When the bending is completed and the rotating plate 204 separates from the pipe, the torsion spring resets and releases the elastic potential energy, so that the rotating plate 204 returns to its initial position.

[0058] In one embodiment, the first driving member needs to be manually operated and can drive the contact member to move and bend the tube.

[0059] This embodiment includes two solutions:

[0060] Option 1: The first driving component includes a first slider 202, a lead screw 302, and a handwheel 306. A support base is connected to the first slider 202 via a mating rod 209, and the first slider 202 is slidably disposed in a first groove 201. Movement of the first slider 202 synchronously drives the support base to move. The handwheel 306 is connected to one end of the lead screw 302; rotation of the handwheel 306 controls rotation of the lead screw 302. The lead screw 302 is disposed in the first groove 201 of the worktable 1 and is threadedly connected to the first slider 202. Rotation of the handwheel 306 controls the rotation of the connected lead screw 302, thereby controlling the movement of the first slider 202 via the threaded connection. It should be noted that the specific structure of this option is not shown in the figure; only an implementable option is provided.

[0061] Option 2, such as Figure 2 As shown, the first driving component includes a first slider 202, a rotating handle 210, and a hinge seat 211; the support seat is connected to the first slider 202 via a mating rod 209, and the first slider 202 is slidably disposed in the first slide groove 201. The movement of the first slider 202 can synchronously drive the support seat to move; the hinge seat 211 is disposed on the worktable 1; the rotating handle 210 is rotatably disposed on the worktable 1 via the hinge seat 211, and one end of the rotating handle 210 slides against the support seat; by rotating the other end of the rotating handle 210, the support seat is forced to move;

[0062] Specifically, the end of the handle 210 that slides against the support seat is provided with a strip-shaped mating groove 212; and the mating rod 209 passes through the mating groove 212; as the handle 210 rotates, the mating rod 209 moves along the mating groove 212, thereby forcing the first slider 202 to move. This implementation scheme directly controls the movement of the support seat through a lever, which is more direct and convenient.

[0063] like Figure 1 and 3 As shown, in one embodiment, since the shaping seat 304 of the shaping component 3 can be detached and replaced with different radii; since the clamping position of the clamping component 4 on the pipe is fixed, and the moving path of the shaping component 3 is also along the first slide groove 201, in order to ensure that the shaping seat 304 with different radii can always fit with the pipe, the shaping seat 304 of the shaping component 3 also needs to be able to change its position.

[0064] The worktable 1 is also provided with a second slide 301, which provides a moving path for the position change of the shaping seat 304; since the shaping seat 304 needs to be in contact with the tube fixed by the clamping assembly 4 at the same time, and the tube groove of the rotating plate 204 can directly press the tube onto the shaping seat 304 when the shaping assembly 3 moves, such as Figure 7 As shown, when the clamping assembly 4 fixes the pipe, the pipe axis is line a, and when the pipe is bent, the pipe axis that is in contact with the rotating plate 204 is line b. This makes the second slide groove 301 set along the angle bisector c of line a and line b. Due to the principle that any point on the angle bisector c has a perpendicular line to line a and line b, the shaping seat 304 can always be in contact with the pipe during the bending operation.

[0065] The shaping component 3 also includes a second driving member, which is disposed in the second slide groove 301. The shaping seat 304 is disposed on the second driving member. The second driving member drives the shaping seat 304 to move, so that the shaping seat 304 abuts against the tube.

[0066] Specifically, the second driving component includes a second slider 303, a lead screw 302, and a handwheel 306; a shaping seat 304 is disposed on the second slider 303; the handwheel 306 is connected to one end of the lead screw 302; the lead screw 302 is disposed in the second slide groove 301 of the worktable 1 and is threadedly connected to the second slider 303; the rotation of the handwheel 306 controls the rotation of the lead screw 302 connected to it, thereby controlling the movement of the first slider 202 through the threaded connection;

[0067] Specifically, the second slider 303 is provided with a mounting post 305, and the top of the mounting post 305 is provided with a screw hole; the shaping seat 304 is provided with a through hole in the middle, and is sleeved on the mounting post 305 through the through hole, and then fixed to the screw hole at the top of the mounting post 305 by bolts, thereby fixing the shaping seat 304 and realizing the detachable connection of the shaping seat 304.

[0068] like Figure 4-6 As shown, in one embodiment, the clamping component 4 needs to be able to move and complete the bending at the next position after the pipe has been bent at one position;

[0069] The clamping assembly 4 includes a movable part, which can move with the movable part; the movable part is disposed on the worktable 1 and includes a sliding seat 401 and a limiting rod 402; both ends of the limiting rod 402 are respectively disposed on the worktable 1 through fixed seats; the mounting seat 403 is disposed on the sliding seat 401 and moves along the limiting rod 402.

[0070] Specifically, the sliding seat 401 is provided with a threaded hole that extends to the limiting rod 402, and a fixing bolt 406 that is threadedly connected to the threaded hole; by screwing the fixing bolt 406 into the threaded hole, and making one end of the fixing bolt 406 abut against the limiting rod 402, the movement of the sliding seat 401 is restricted.

[0071] In one embodiment, such as Figure 4 As shown, when the pipe needs to be bent, it can be bent not only on one plane, but also on different planes. Therefore, the clamping assembly 4 needs to be able to make the pipe rotate around the axis.

[0072] The clamping assembly 4 includes a mounting base 403, a rotating sleeve 405, and a fixing member; the pipe fitting is fixed in the rotating sleeve 405 by the fixing member, and then the rotating sleeve 405 is rotatably set in the rotating hole 404 of the mounting base 403; the pipe fitting can be rotated by rotating the rotating sleeve 405.

[0073] Specifically, the mounting base 403 is provided with a threaded hole that extends to the rotating hole 404, and a fixing bolt 406 that is threadedly connected to the threaded hole; by screwing the fixing bolt 406 into the threaded hole, and making one end of the fixing bolt 406 abut against the outer wall of the rotating sleeve 405, the rotation of the rotating sleeve 405 is restricted.

[0074] Specifically, the fasteners are a sleeve 409 and a fixing bolt 406. Openings are provided on both sides of one end of the sleeve 409, so that the two sides of the sleeve 409 can deform inward when compressed. A screw hole is provided on the side wall of the rotating sleeve 405 to cooperate with the fixing bolt 406. The fixing bolt 406 passes through the screw hole and abuts against the two sides of the opening of the sleeve 409, forcing the two sides of the sleeve 409 to deform inward under pressure and press and fix the pipe.

[0075] like Figure 6 As shown, in one embodiment, the displacement and rotation of pipe 6 need to be accurately located in order to confirm the processing position;

[0076] The workbench 1 is also equipped with a scale 412, which has a scale and is positioned parallel to the limit rod 402; the sliding seat 401 is equipped with a pointer 411 on the side near the scale 412. By cooperating with the scale 412, the displacement of the pipe 6 can be determined.

[0077] The dial 407 is provided at one end, and a mark is provided on the side of the mounting base 403 near the dial 407. The rotation angle of the pipe 6 can be determined by the cooperation of the dial 407 and the mark.

[0078] like Figure 1 and 4 As shown, in one embodiment, the workbench 1 is also provided with a spare box 5, which stores several sets of different types of shaping seats 304 and replacement slots 213 for replacement.

[0079] The working principle of the manual pipe bending table of the present invention is as follows:

[0080] When bending the pipe fitting is required, first, fit the sleeve 409 onto the appropriate position of the pipe fitting, and then fix it to the clamping assembly 4 by rotating the sleeve 405; replace the shaping seat 304 and the replacement groove 213 with the corresponding size and bending radius, so that the part of the pipe fitting to be bent is placed between the shaping assembly 3 and the bending assembly 2; then drive the shaping assembly 3 to move by the second driving component, so that the groove of the shaping seat 304 fits with the pipe fitting, and then rotate the handle 210 to drive the support seat to move toward the pipe fitting, so that the groove on the replacement groove 213 fits with the pipe fitting, and then move it into the... The tube is bent so that it conforms to the groove of the shaping seat 304. Then the shaping component 3 is reset. When the tube needs to be bent to the next position, the distance of movement of the tube is determined by comparing the scale 412 and the pointer 411, so that the next bending position is placed between the shaping component 3 and the bending component 2. When the tube needs to be rotated and bent on another plane, the fixing bolt 406 on the mounting seat 403 that restricts the rotation of the rotating sleeve 405 is loosened. Then the rotation angle of the tube is determined by comparing the scale 407. Then it is fixed and the above bending process is repeated.

[0081] 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, method, 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, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0082] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0083] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A manual pipe bending table, characterized in that, include: Clamping assembly for securing pipe fittings; A pipe bending module includes a shaping component and a bending component, with a gap between the shaping component and the bending component for the pipe fitting to pass through; the shaping component is detachably provided with a shaping seat for holding the pipe fitting, and the bending component is detachably provided with a replacement groove for bending the pipe fitting; the shaping seat and the replacement groove are used to adapt to pipe fittings of different sizes and to meet different processing requirements; The workbench is provided with a first slide groove and a second slide groove; the bending component is slidably disposed in the first slide groove; the second slide groove provides a moving path for the position change of the shaping seat; when the clamping component fixes the pipe, the axis of the pipe is line a, and when the pipe is bent, the axis of the pipe that is in contact with the rotating plate is line b, so that the second slide groove is set along the angle bisector c of line a and line b; The bending assembly includes a contact member and a first driving member; the first driving member is used to drive the contact member to move along the first groove and contact the bent portion of the tube. The contact element includes a support base and a rotating plate, with the rotating plate rotatably mounted on the support base. The replacement groove is inserted into the rotating plate. When the contact element moves and comes into contact with the pipe, the rotating plate rotates, causing the replacement groove to fit against the bent portion of the pipe. During the bending process of the pipe, the replacement groove always abuts the bent portion of the pipe against the shaping base.

2. The manual pipe bending table according to claim 1, characterized in that, The shaping component is disposed on the worktable; the clamping component is slidably disposed on the worktable.

3. The manual pipe bending table according to claim 1, characterized in that, The first driving component includes a lead screw and a handwheel; the handwheel is connected to one end of the lead screw; the lead screw is disposed on the worktable and is threadedly connected to the support base; the rotation of the handwheel controls the rotation of the lead screw connected to it, thereby controlling the movement of the support base; Alternatively, the first driving member includes a handle and a hinge seat; the handle is rotatably mounted on the worktable via the hinge seat, and one end of the handle slides against the support seat; by rotating the other end of the handle, the support seat is forced to move.

4. The manual pipe bending table according to claim 1, characterized in that, The contact element further includes a reset part; the reset part is disposed on the support base and connected to the rotating plate, and is used to reset after the rotating plate rotates.

5. The manual pipe bending table according to claim 1, characterized in that, The shaping seat and the replacement groove are respectively provided with a pipe groove on the side for contacting the pipe fitting; When the pipe is bent, the groove of the replacement slot fits into the bent portion of the pipe, and the groove of the shaping seat fits into the bent portion of the pipe.

6. The manual pipe bending table according to claim 5, characterized in that, The shaping assembly further includes a second driving member; the shaping seat is disposed on the second driving member; the second driving member is disposed on the second slide groove and controls the shaping seat to move along the second slide groove; when changing the shaping seat of different sizes, the second driving member drives the shaping seat to move so that the shaping seat abuts against the tube.

7. The manual pipe bending table according to claim 6, characterized in that, The second driving component includes a first slider, a lead screw, and a handwheel; the shaping seat is disposed on the first slider; the handwheel is connected to one end of the lead screw; the lead screw is disposed on the worktable and is threadedly connected to the first slider; the rotation of the handwheel controls the rotation of the lead screw connected to it, thereby controlling the movement of the first slider.

8. The manual pipe bending table according to claim 2, characterized in that, The clamping assembly includes a movable part; the movable part is disposed on the worktable and includes a sliding seat and a limiting rod; the limiting rod is disposed on the worktable; the sliding seat moves along the limiting rod; And / or, the clamping assembly includes a mounting base, a rotating sleeve, and a fixing member; the rotating sleeve is rotatably disposed in the mounting hole of the mounting base; the pipe passes through the rotating sleeve and is fixed to the rotating sleeve by the fixing member.

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