Auxiliary clamping mechanism of pipe bending machine

Abstract

The utility model relates to the technical field of clamping structures, in particular to an auxiliary clamping mechanism of a pipe bending machine, which comprises a plurality of clamping plates, a plurality of clamping plates, a plurality of clamping plates and a plurality of clamping plates, the clamping plates are slidably connected into a heating cylinder, profiling notches are formed in the clamping plates, and a clamping hole is defined by the profiling notches in the clamping plates; the driving columns are in sliding connection with the heating cylinder, one ends of the driving columns abut against the clamping plates, and the other ends of the driving columns extend out of the heating cylinder; the driving pieces are used for enabling the driving columns to slide, and the driving pieces are connected with the heating cylinder and the driving columns; the automobile pipeline limiting device has the beneficial effects that the clamping hole allowing the pipeline to penetrate through can be formed through the multiple clamping plates, the driving column can slide through the driving piece, the driving column can be matched with the driving piece to apply force to the clamping plates, and then the multiple clamping plates get close to one another, so that position limiting of the automobile pipeline is achieved; and when the front end bending assembly is used for bending the pipeline, the automobile pipeline is prevented from deflecting, so that the forming quality of a final product is guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of clamping structures, in particular to an auxiliary clamping mechanism of a pipe bending machine. BACKGROUND

[0002] Automobile pipe bending refers to bending metal pipe fittings in automobiles through specific process methods to make them meet the needs of automobile design and assembly. The bent automobile pipes can adapt to the complex spatial layout inside the automobile while ensuring the functionality and safety of the pipe system, and are widely applied to many fields such as automobile body structure, chassis structure, exhaust system, fuel system, cooling system and electrical system.

[0003] In order to facilitate personalized processing, the prior art discloses an automobile pipe bending machine, which comprises a rack, three groups of pipe bending assemblies vertically arranged on the rack, the three groups of pipe bending assemblies being respectively a main pressure wheel mechanism and side pressure wheel mechanisms on both sides of the main pressure wheel mechanism, the side pressure wheel mechanisms being movably connected to the rack through sliding plates, the main pressure wheel mechanism being composed of a main pressure wheel and a main driving device for controlling the up-down movement of the main pressure wheel, the main pressure wheel being movably connected to the rack, the side pressure wheel mechanism being composed of a side pressure wheel and a side driving device for controlling the up-down movement of the side pressure wheel, the side pressure wheel being movably connected to the sliding plate, the side driving device being arranged on the sliding plate, a positioning and locking piece being arranged between the sliding plate and the rack, a driving device for driving the side pressure wheel to rotate being arranged on the rack, the driving device being connected to the side pressure wheel through a transmission mechanism, and a compensation driving device for driving the main pressure wheel to rotate being further arranged on the rack.

[0004] According to the related art, the automobile pipe is bent by the bending structure composed of the main pressure wheel and the two groups of side pressure wheels. When the automobile pipe is processed to the rear section of the current coiled material, the automobile pipe in the feeding cylinder loses the position limitation of the current coiled material, and thus is deflected under the gravity of the front end of the bent part. The deflection angle is uncontrollable, which leads to a large product error of the bending assembly when facing the deflected automobile pipe. CONTENT OF THE UTILITY MODEL

[0005] In order to reduce the possibility that the product quality is greatly reduced due to the deflection of the automobile pipe raw material after losing the position limitation in the heating cylinder, the application provides an auxiliary clamping mechanism of a pipe bending machine.

[0006] The auxiliary clamping mechanism of the pipe bending machine provided by the application adopts the following technical scheme:

[0007] The auxiliary clamping mechanism of the pipe bending machine comprises:

[0008] A plurality of clamping plates are slidably connected in the heating cylinder, and a profiling gap is formed on each clamping plate, and the profiling gaps on the plurality of clamping plates enclose a clamping hole.

[0009] A plurality of driving columns are in sliding connection with the heating cylinder, and one end of the driving column is in abutment with the clamping plate, and the other end extends out of the heating cylinder.

[0010] A plurality of driving members for sliding the driving column are connected with the heating cylinder, and the driving member is connected with the driving column.

[0011] By adopting the above technical scheme, the automobile pipeline passes through the clamping hole surrounded by the profiling notches on the plurality of clamping plates. When the automobile pipeline needs to be clamped, the driving member applies force to the driving column, so that the driving column slides towards the side of the automobile pipeline. The driving column slides while applying force to the clamping plate, so that the inner diameter of the clamping hole is reduced until the clamping plate clamps and fixes the automobile pipeline, thereby maintaining the positional stability of the automobile pipeline during bending processing of the automobile pipeline. The designed auxiliary clamping mechanism of the pipe bending machine can form a clamping hole for the pipeline to pass through through the plurality of clamping plates. The driving member can make the driving column slide, and each clamping plate is individually controlled by the driving member and the driving column. The risk of clamping plate jamming during driving is also reduced. The machining precision of the clamping plate is also reduced, and the influence of cumulative error on clamping plate movement jamming is also reduced. The driving column can cooperate with the driving member to apply force to the clamping plate, so that the plurality of clamping plates are close to each other to limit the position of the automobile pipeline, thereby avoiding deflection of the automobile pipeline during bending of the front-end bending assembly, thereby ensuring the forming quality of the final product.

[0012] In a specific implementation scheme, the number of clamping plates is two, and a plurality of return springs are connected between the two clamping plates, and the return springs are arranged along the sliding direction of the clamping plate.

[0013] By adopting the above technical scheme, the designed number of two clamping plates can cooperate with the return spring to realize clamping of the automobile pipeline and return and reset action of the clamping plate, thereby reducing the interference of the clamping plate to the automobile pipeline during extraction of the automobile pipeline.

[0014] In a specific implementation scheme, a plurality of accommodating holes are formed in the clamping plate, one end of the return spring extends into the accommodating hole, and when the distance between the two clamping plates in the heating cylinder reaches the maximum value, the return spring is in a compressed state.

[0015] By adopting the above technical scheme, the designed accommodating hole can ensure the relative position of the return spring and the clamping plate under the premise that the return spring realizes the reset of the clamping plate.

[0016] In a specific implementation scheme, a plurality of positioning pin holes are formed in the clamping plate, a guide column is arranged in the positioning pin hole, and a guide groove for cooperating with the guide column is formed in the heating cylinder.

[0017] By adopting the technical scheme, the positioning pin hole and the guide column can realize control of the sliding direction of the clamping plate in cooperation with the guide groove formed on the heating cylinder.

[0018] In one specific implementation, the driving column includes a force receiving section and an execution section arranged coaxially, the force receiving section and the execution section are both in sliding connection with the heating cylinder, one end of the force receiving section is connected with the driving member, one end of the execution section is in abutment with the clamping plate, and the outer diameter of the force receiving section is larger than that of the execution section, and a spring is sleeved on the execution section.

[0019] By adopting the technical scheme, the driving column divided into the force receiving section and the execution section can realize resetting of the driving column in cooperation with the spring.

[0020] In one specific implementation, the driving member includes:

[0021] a fixed seat connected with the heating cylinder;

[0022] a force applying lever in rotational connection with the fixed seat, and one end of the force applying lever is in abutment with one end of the driving column away from the clamping plate;

[0023] a driving cylinder connected with one end of the force applying lever away from the driving column, and a piston rod of the driving cylinder can be in abutment with the heating cylinder.

[0024] By adopting the technical scheme, the driving member can realize rotation of the force applying lever through the fixed seat, and provide a distance between the force applying lever and the outer circumferential side of the heating cylinder, and the driving cylinder and the force applying lever can realize sliding of the driving column, and further realize sliding of the clamping plate.

[0025] In one specific implementation, the clamping plate is connected with arc-shaped extension plates, a plurality of the arc-shaped extension plates enclose a through hole for the automobile pipeline to pass through, and the thickness of the arc-shaped extension plates is greater than that of the clamping plate.

[0026] By adopting the technical scheme, the arc-shaped extension plates can increase the contact area between the automobile pipeline and the arc-shaped extension plates during clamping, and further balance the clamping stability and the clamping pressure, so as to reduce the possibility of damaging the softened automobile pipeline.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The auxiliary clamping mechanism of the designed pipe bending machine, through multiple clamping plates, a clamping hole for the pipe to pass through can be formed, through the driving member, the driving column can be slid, and each clamping plate is controlled to drive by the driving member and the driving column, the risk of clamping plate jamming during driving is reduced, the machining precision of the clamping plate is reduced, the influence of cumulative error on clamping plate movement jamming is reduced, the driving column can cooperate with the driving member to apply force to the clamping plate, so that multiple clamping plates are close to each other to realize the position limitation of the automobile pipe, and the automobile pipe is prevented from deflecting when the front end bending assembly bends the pipe, so as to ensure the forming quality of the final product.

[0029] 2. The auxiliary clamping mechanism of the designed pipe bending machine, through two clamping plates, the clamping of the automobile pipe and the reset action of the clamping plate can be realized by cooperating with the reset spring, so as to reduce the interference of the clamping plate to the automobile pipe during the extraction of the automobile pipe.

[0030] 3. The auxiliary clamping mechanism of the designed pipe bending machine, through the fixed seat, the rotation of the force applying lever can be realized, and a distance is provided between the force applying lever and the outer circumferential side of the heating cylinder, through the cooperation of the driving cylinder and the force applying lever, the sliding of the driving column can be realized, and then the sliding of the clamping plate is realized. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic view of the auxiliary clamping mechanism of the pipe bending machine of the embodiment of the present application.

[0032] Figure 2 is Figure 1 a side view along the direction perpendicular to the clamping plate in

[0033] Figure 3 is Figure 2 a structural schematic view hidden behind the driving member on the basis of

[0034] Figure 4 is Figure 3 a sectional view of

[0035] Figure 5 is Figure 1 a general structural schematic view after adding a heating cylinder end cover on the basis of

[0036] BRIEF DESCRIPTION OF DRAWINGS: 01, heating cylinder; 1, clamping plate; 11, profiling notch; 12, accommodating hole; 13, positioning pin hole; 2, driving column; 21, stress section; 22, execution section; 23, ejection spring; 3, driving member; 31, fixed seat; 32, force applying lever; 33, driving cylinder; 4, reset spring; 5, guide column; 6, arc-shaped extension plate. DETAILED DESCRIPTION

[0037] The application will be further described below with reference to the accompanying drawings. Figures 1-5 The application will be further described below with reference to the accompanying drawings.

[0038] The application discloses a pipe bending machine auxiliary clamping mechanism.

[0039] Referring to Figure 1 The pipe bending machine auxiliary clamping mechanism comprises clamping plates 1, driving columns 2 and driving members 3, the number of the clamping plates 1, the driving columns 2 and the driving members 3 is consistent and each is multiple, the clamping plates 1 are slidably connected in a heating cylinder 01, and the clamping plates 1 are provided with profiled notches 11, and the profiled notches 11 on the multiple clamping plates 1 enclose clamping holes; the driving columns 2 are slidably connected with the heating cylinder 01, and the driving columns 2 are arranged through the central axis of the heating cylinder 01, one end of the driving column 2 is in abutment with the clamping plate 1, and the other end of the driving column 2 extends out of the heating cylinder 01 to the outside; the driving member 3 is connected with the heating cylinder 01, and the driving member 3 is connected with the driving column 2, and is used for enabling the driving column 2 to slide along the axial direction of the driving column 2.

[0040] Referring to Figure 1 and Figure 2 Specifically, the number of the clamping plates 1 is two, and multiple return springs 4 are connected between the two clamping plates 1, and the return springs 4 are arranged along the sliding direction of the clamping plates 1; in order to facilitate the control of the relative position of the return spring 4 and the clamping plate 1, multiple accommodating holes 12 are formed in the clamping plate 1, one end of the return spring 4 extends into the accommodating hole 12, and when the spacing between the two clamping plates 1 reaches the maximum value, the return spring 4 is still in a compressed state.

[0041] Referring to Figure 2 Further, in order to facilitate the control of the sliding direction of the clamping plate 1, multiple positioning pin holes 13 are formed in the clamping plate 1, a guide column 5 is arranged in the positioning pin hole 13, the guide column 5 is in interference fit with the clamping plate 1, and a guide groove for the sliding of the guide column 5 is formed in the heating cylinder 01, and the sliding direction of the clamping plate 1 can be controlled through the cooperation of the guide column 5 and the guide groove.

[0042] Referring to Figure 3 The clamping plate 1 is further welded with an arc-shaped lengthening plate 6, multiple arc-shaped lengthening plates 6 enclose a through hole for the automobile pipeline to pass through, and the through hole is coaxially arranged with the clamping hole, the thickness of the arc-shaped lengthening plate 6 is greater than that of the clamping plate 1, in the application, the arc-shaped lengthening plate 6 can be located on one side of the clamping plate 1 or on both sides of the clamping plate 1, as long as the contact area with the automobile pipeline can be increased, in the embodiment, the arc-shaped lengthening plate 6 is located on one side of the clamping plate 1; the contact area between the automobile pipeline and the arc-shaped lengthening plate 6 can be increased during clamping, so that a balance between clamping stability and clamping pressure can be achieved, thereby reducing the possibility of damage to the softened automobile pipeline.

[0043] Referring to Figure 4Specifically, the driving column 2 comprises a force receiving section 21 and an execution section 22, the force receiving section 21 and the execution section 22 are coaxially arranged, and the force receiving section 21 and the execution section 22 are integrally connected. A stepped hole is formed in the heating cylinder 01 to realize the sliding connection of the force receiving section 21 and the execution section 22 with the heating cylinder 01. The end of the force receiving section 21 away from the execution section 22 is connected with the driving member 3. The end of the execution section 22 away from the force receiving section 21 abuts against the clamping plate 1. The outer diameter of the force receiving section 21 is larger than that of the execution section 22. The execution section 22 is sleeved with the ejection spring 23. One end of the ejection spring 23 abuts against the force receiving section 21, and the other end abuts against the stepped hole wall of the heating cylinder 01.

[0044] With reference to Figure 5 More specifically, the driving member 3 comprises a fixed seat 31, a force applying lever 32 and a driving cylinder 33. The fixed seat 31 is welded and fixed with the heating cylinder 01. The force applying lever 32 is hinged with the fixed seat 31 through a rotating shaft. One end of the force applying lever 32 abuts against the force receiving section 21. The driving cylinder 33 is clamped with the end of the force applying lever 32 away from the force receiving section 21. The piston rod of the driving cylinder 33 can abut against the outer side wall of the heating cylinder 01, so as to realize the rotation of the force applying lever 32, and further realize the reciprocating movement of the clamping plate 1 in cooperation with the return spring 4 and the ejection spring 23.

[0045] The implementation principle of the auxiliary clamping mechanism of the pipe bending machine is as follows: the automobile pipeline passes through the clamping hole surrounded by the profiled notches 11 of the multiple clamping plates 1. When the automobile pipeline needs to be clamped, the driving member 3 applies force to the driving column 2, so that the driving column 2 slides towards the side of the automobile pipeline. At the same time, the driving column 2 applies force to the clamping plate 1, so that the inner diameter of the clamping hole is reduced, until the clamping plate 1 clamps and fixes the automobile pipeline, so as to keep the position stability of the automobile pipeline during the bending processing of the automobile pipeline. The multiple clamping plates 1 can form the clamping hole for the pipeline to pass through. The driving member 3 can make the driving column 2 slide, and each clamping plate 1 is controlled to drive by the driving member 3 and the driving column 2, which reduces the risk of clamping plate 1 being stuck during driving, and also reduces the machining precision of the clamping plate 1 and the influence of cumulative error on the clamping plate 1 stuck. The driving column 2 can apply force to the clamping plate 1 in cooperation with the driving member 3, so as to make the multiple clamping plates 1 close to each other, thereby realizing the position limitation of the automobile pipeline. The deflection of the automobile pipeline is avoided during the pipeline bending of the front end bending assembly, so as to guarantee the forming quality of the final product.

[0046] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application. Any equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An auxiliary clamping mechanism for a pipe bending machine, characterized in that: include: Multiple clamping plates (1) are slidably connected to the heating cylinder (01), and the clamping plates (1) are provided with contour notches (11), and the contour notches (11) on the multiple clamping plates (1) form a clamping hole; Multiple drive columns (2) are slidably connected to the heating cylinder (01), and one end of the drive column (2) abuts against the clamping plate (1), while the other end extends out of the heating cylinder (01). Multiple drive members (3) for sliding the drive column (2), the drive members (3) are connected to the heating cylinder (01) and the drive column (2).

2. The auxiliary clamping mechanism for a pipe bending machine according to claim 1, characterized in that: The clamping plates (1) are in the form of two pieces, and multiple return springs (4) are connected between the two clamping plates (1). The return springs (4) are arranged along the sliding direction of the clamping plates (1).

3. The auxiliary clamping mechanism for a pipe bending machine according to claim 2, characterized in that: The clamping plate (1) has multiple receiving holes (12). One end of the return spring (4) extends into the receiving hole (12), and when the distance between the two clamping plates (1) in the heating cylinder (01) reaches the maximum value, the return spring (4) is in a compressed state.

4. The auxiliary clamping mechanism for a pipe bending machine according to claim 1, characterized in that: The clamping plate (1) has multiple positioning pin holes (13), and a guide post (5) passes through the positioning pin holes (13). The heating cylinder (01) has a guide groove for cooperating with the guide post (5).

5. The auxiliary clamping mechanism for a pipe bending machine according to claim 1, characterized in that: The drive column (2) includes a force-receiving section (21) and an execution section (22) arranged coaxially. Both the force-receiving section (21) and the execution section (22) are slidably connected to the heating cylinder (01). One end of the force-receiving section (21) is connected to the drive member (3), and one end of the execution section (22) abuts against the clamping plate (1). The outer diameter of the force-receiving section (21) is larger than the outer diameter of the execution section (22). A pop-out spring (23) is sleeved on the execution section (22).

6. The auxiliary clamping mechanism for a pipe bending machine according to any one of claims 1-5, characterized in that: The driving component (3) includes: A fixing seat (31) is connected to a heating cylinder (01); A force-applying lever (32) is rotatably connected to the fixed base (31), and one end of the force-applying lever (32) abuts against the end of the drive column (2) away from the clamping plate (1); A drive cylinder (33) is connected to the end of the force-applying lever (32) away from the drive column (2), and the piston rod of the drive cylinder (33) can abut against the heating cylinder (01).

7. The auxiliary clamping mechanism for a pipe bending machine according to claim 1, characterized in that: The clamping plate (1) is connected to an arc-shaped extension plate (6), and multiple arc-shaped extension plates (6) form a through hole for the passage of automobile pipes, and the thickness of the arc-shaped extension plate (6) is greater than the thickness of the clamping plate (1).

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