Punching mechanism

Abstract

The utility model relates to the technical field of punching mechanisms, in particular to a punching mechanism which comprises a fixing assembly and a punching assembly. The positioning assembly comprises a clamping seat and a filling piece movably arranged on the clamping seat; the stamping assembly comprises a feeding assembly and a movable die assembly; the first end of the movable die assembly abuts against the feeding assembly so that a containing space for containing the D-shaped pipe can be formed. A stamping part is arranged on the movable die assembly; the movable mold assembly can move towards the feeding assembly so that the movable mold assembly can be connected with the clamping base in a clamped mode. One end of the driving assembly is in driving connection with the second end of the movable mold assembly; under driving of the driving assembly, the movable die assembly drives the D-shaped pipe to move towards the feeding assembly, and the stamping part can abut against the D-shaped pipe with the end filled with the filling part so as to conduct punching. According to the D-shaped pipe punching die, the end of a D-shaped pipe is filled, the movable die assembly is limited, the D-shaped pipe is prevented from deforming when the end of the D-shaped pipe is punched, and the qualification rate of the prepared D-shaped pipe is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch mechanism technical field, especially punch mechanism. BACKGROUND

[0002] The punch mechanism is a kind of mechanical mechanism, after installing the pipe to be punched, under the driving of power mechanism, punch die acts on material, completes punching, punch mechanism can be quickly punched to the D-shaped pipe of account canopy, but when the end of D-shaped pipe is punched, D-shaped pipe is prone to deformation, the precision and the pass rate of D-shaped pipe punching are low, and D-shaped pipe repair rate or rework rate is high.

[0003] Based on the shortcomings of prior art, it is urgent to research a punch mechanism to solve the above problems. INVENTION CONTENTS

[0004] To solve the above technical problems, the utility model provides a punch mechanism, the utility model realizes the end of D-shaped pipe to be filled and the movable die assembly to be limited, avoids the deformation of D-shaped pipe when the end of D-shaped pipe is punched, guarantees the pass rate of preparation D-shaped pipe, reduces D-shaped pipe repair rate or rework rate, and simultaneously movable die assembly and feeding assembly cooperate with each other, form the accommodation space matched with D-shaped pipe, can further avoid the deformation of D-shaped pipe in the process of punching, further guarantee the pass rate of D-shaped pipe.

[0005] The utility model provides a punch mechanism for punching D-shaped pipe, it includes:

[0006] Fixed assembly;

[0007] Positioning assembly is arranged on the fixed assembly, including the clamping seat and the filler capable of extending into the end of D-shaped pipe, the filler is movably arranged on the clamping seat;

[0008] Punching assembly is arranged on the fixed assembly, including the feeding assembly and the movable die assembly capable of carrying the D-shaped pipe movement and being oppositely arranged;The first end of the movable die assembly and the feeding assembly are mutually abutted and can form the accommodation space accommodating the D-shaped pipe;Punching piece is arranged on the movable die assembly, and the punching piece extends towards the feeding assembly;The movable die assembly can move towards the feeding assembly, so that the movable die assembly and the clamping seat are clamped, and the filler is filled to the end of the D-shaped pipe;

[0009] Drive assembly, one end of the drive assembly and the second end of the movable die assembly are drivingly connected;Under the driving of the drive assembly, the movable die assembly drives the D-shaped pipe to move towards the feeding assembly, and the punching piece can abut with the D-shaped pipe filled with the filler in the end to punch.

[0010] Furthermore, the fixing assembly includes a first mounting plate and a second mounting plate that are interconnected;

[0011] The positioning component, the driving component, and the feeding component are disposed on the first mounting plate;

[0012] The second mounting plate is provided with a guide member along the direction from the moving mold assembly to the feeding assembly, and the moving mold assembly is slidably connected to the guide member.

[0013] Furthermore, the drive assembly includes a drive member, a meshing drive gear, and a driven gear;

[0014] The second end of the moving mold assembly is connected to the driven gear via a connecting rod. Under the drive of the driving member, the driving gear drives the driven gear to rotate, the driven gear drives the connecting rod to rotate, and the connecting rod drives the moving mold assembly to reciprocate on the guide member.

[0015] Furthermore, the second mounting plate is also provided with a clearance groove. After the first mounting plate and the second mounting plate are connected, part of the driven gear is disposed in the clearance groove, and there is a gap between the driven gear and the clearance groove.

[0016] Furthermore, the moving mold assembly includes a first fastening member, a snap-fit ​​member, a connecting component, and a connecting rod;

[0017] One end of the connecting rod is rotatably connected to the first end of the connecting assembly, and the second end of the connecting assembly is connected to the first fastening member. The first fastening member has a first receiving groove on the side away from the connecting rod, and the stamping part is disposed in the first receiving groove.

[0018] The snap-fit ​​component is disposed on the connecting assembly, and the snap-fit ​​component can snap into the snap-fit ​​base to limit the position of the moving mold assembly.

[0019] Furthermore, the feeding assembly includes a second fastening member, a first connecting plate, a second connecting plate, a screw assembly, and a compression member;

[0020] The first end of the first connecting plate and the first end of the second connecting plate are fixedly disposed relative to each other and are connected by a screw assembly; the second end of the first connecting plate is connected to the first end of the second fastening member, the second end of the second fastening member can abut against the first fastening member, and the second end of the second fastening member is provided with a second receiving groove;

[0021] The compression component is sleeved on the screw assembly, and the first end of the compression component is fixedly connected to the screw assembly, and the second end of the compression component abuts against the second end of the second connecting plate.

[0022] Furthermore, the length directions of the guide member, the snap-fit ​​member, the screw assembly, and the stamping member are arranged parallel to each other.

[0023] Furthermore, the positioning component also includes a pulley assembly, which is connected to the filler via a connecting rope;

[0024] The card holder is provided with a sliding groove, and the pulley assembly is disposed in the sliding groove; there is a gap between the pulley assembly and the first mounting plate;

[0025] The snap-fit ​​element extends into the gap, and the snap-fit ​​element drives the pulley assembly to move along the groove, thereby moving the filler toward the end of the D-shaped tube.

[0026] Furthermore, the first end of the snap-fit ​​member is connected to the connecting assembly, and the second end of the snap-fit ​​member is a wedge portion, the inclined surface of which is connected to the pulley assembly.

[0027] Furthermore, it also includes a feeding assembly disposed above the moving mold assembly;

[0028] The feeding assembly has a feeding port that is slightly larger than the width of the D-shaped tube, and the feeding assembly can guide one of the D-shaped tubes into the moving mold assembly through the feeding port.

[0029] Implementing the embodiments of this utility model has the following beneficial effects:

[0030] This invention, through the arrangement of a positioning component, a feeding component, a moving mold component, and a driving component that cooperate with each other, enables the moving mold component to carry the D-shaped tube toward the feeding component. It also includes a filling component that can extend into the end of the D-shaped tube and a locking seat that limits the movement of the moving mold component. This achieves filling of the end of the D-shaped tube and limiting of the moving mold component, preventing deformation of the D-shaped tube during punching, improving the punching accuracy, ensuring the yield rate of D-shaped tubes, and reducing the repair or rework rate. Furthermore, the moving mold component and the feeding component cooperate to form a receiving space that matches the D-shaped tube, further preventing deformation during punching and ensuring a higher yield rate. Attached Figure Description

[0031] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this utility model. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0032] Fig. 1 This is a structural diagram of the punching mechanism in this embodiment;

[0033] Fig. 2 This is a structural diagram of the moving mold assembly in this embodiment;

[0034] Fig. 3 This is a structural diagram of the feeding component and the positioning component after they are connected in this embodiment.

[0035] The corresponding reference numerals in the figure are:

[0036] 1-Fixing component; 2-Positioning component; 3-Stamping component; 4-Drive component; 5-Feeding component; 11-First mounting plate; 12-Second mounting plate; 21-Snap-fit ​​seat; 22-Filling component; 23-Pulley assembly; 24-Slide groove; 31-Feeding component; 32-Moving mold assembly; 41-Driving gear; 42-Driven gear; 121-Guide component; 122-Allowing groove; 311-Second fastening component; 312-First connecting plate; 313-Second connecting plate; 314-Screw assembly; 315-Compression component; 321-Stamping component; 322-First fastening component; 323-Snap-fit ​​component; 324-Connecting component; 325-Connecting rod; 326-Ejector component; 3111-Second receiving groove; 3221-First receiving groove. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0039] To address the shortcomings of existing technologies, this invention incorporates a cooperating positioning component, a feeding component, a moving mold component, and a driving component. This allows the moving mold component to carry the D-shaped tube towards the feeding component. Furthermore, it includes a filling component that extends into the end of the D-shaped tube and a locking seat that limits the movement of the moving mold component. This fills the end of the D-shaped tube and limits the movement of the moving mold component, preventing deformation of the D-shaped tube during punching, thus ensuring a high yield rate and reducing the repair or rework rate. Simultaneously, the moving mold component and the feeding component work together to form a matching receiving space for the D-shaped tube, further preventing deformation during punching and ensuring a higher yield rate.

[0040] See appendix Figs. 1-3 This embodiment provides a punching mechanism for punching D-shaped tubes, comprising: a fixing component 1; a positioning component 2 disposed on the fixing component 1, including a snap-fit ​​seat 21 and a filler 22 capable of extending into the end of the D-shaped tube, the filler 22 being movably disposed on the snap-fit ​​seat 21; and a punching component 3 disposed on the fixing component 1, including a feeding component 31 disposed opposite to it and a moving die component 32 capable of carrying the D-shaped tube; the first end of the moving die component 32 abuts against the feeding component 31 to form a receiving space for accommodating the D-shaped tube; the moving die... The component 32 is provided with a stamping part 321, which extends toward the feeding component 31; the moving die component 32 can move toward the feeding component 31 so that the moving die component 32 can engage with the snap-fit ​​seat 21, and the filler 22 fills the end of the D-shaped tube; the driving component 4 has one end connected to the second end of the moving die component 32; under the drive of the driving component 4, the moving die component 32 drives the D-shaped tube to move toward the feeding component 31, and the stamping part 321 can abut against the D-shaped tube filled with filler 22 at the end to perform punching.

[0041] In this embodiment, the punching mechanism mainly punches holes at the ends of the D-shaped tube and fills the ends of the D-shaped tube to prevent deformation.

[0042] It should be noted that in this embodiment, by setting up a positioning component 2, a feeding component 31, a moving mold component 32, and a driving component 4 that cooperate with each other, the moving mold component 32 can carry the D-shaped tube toward the feeding component 31. At the same time, a filling component 22 that can extend into the end of the D-shaped tube and a snap-fit ​​seat 21 that limits the moving mold component 32 are also provided. This achieves filling of the end of the D-shaped tube and limiting of the moving mold component 32, avoiding deformation of the D-shaped tube when punching the end of the D-shaped tube, ensuring the pass rate of D-shaped tube production, and reducing the repair rate or rework rate of D-shaped tubes. At the same time, the moving mold component 32 and the feeding component 31 cooperate with each other to form a receiving space that matches the D-shaped tube, which can further prevent the D-shaped tube from deforming during the punching process and further ensure the pass rate of D-shaped tubes.

[0043] In some possible embodiments, the fixing component 1 includes a first mounting plate 11 and a second mounting plate 12 connected to each other; the positioning component 2, the driving component 4 and the feeding component 31 are disposed on the first mounting plate 11; the second mounting plate 12 is provided with a guide member 121 along the direction from the moving mold component 32 to the feeding component 31, and the moving mold component 32 is slidably connected to the guide member 121. By setting the first mounting plate 11 and the second mounting plate 12 connected to each other, the positioning component 2, the stamping component 3 and the driving component 4 can be fixed, thereby improving the stability of the punching mechanism and enabling the punching mechanism to stably perform punching operations on D-shaped tubes.

[0044] In this embodiment, the first mounting plate 11 and the second mounting plate 12 are arranged vertically. Along the length of the first mounting plate 11, a driving component 4, a positioning component 2 and a feeding component 31 are arranged in sequence. The moving mold component 32 is arranged on the second mounting plate 12 and is located close to the driving component 4.

[0045] In some possible embodiments, the drive assembly 4 includes a drive member, a meshing drive gear 41, and a driven gear 42; the second end of the moving mold assembly 32 is connected to the driven gear 42 via a connecting rod 325. Under the drive of the drive member, the drive gear 41 drives the driven gear 42 to rotate, the driven gear 42 drives the connecting rod 325 to rotate, and the connecting rod 325 drives the moving mold assembly 32 to reciprocate on the guide member 121. The moving mold assembly 32 is connected to the driven gear 42 via the connecting rod 325, so that the moving mold assembly 32 can reciprocate on the guide member 121 under the drive of the drive assembly 4, so that the moving mold assembly 32 carries the D-shaped tube toward the feeding assembly 31 and unloads the D-shaped tube after drilling, thereby ensuring the stability of the D-shaped tube loading and unloading.

[0046] In this embodiment, the driving components are a motor drive gear 41 and a driven gear 42 rotatably mounted on the first mounting plate 11, and the number of teeth of the driven gear 42 is less than the number of teeth of the drive gear 41; when the connecting rod 325 is horizontal, the axis of the drive gear 41, the axis of the driven gear 42, the first end of the connecting rod 32, and the second end of the connecting rod 325 are on the same straight line.

[0047] For example, the line connecting the axis of the driving gear 41 and the axis of the driven gear 42 is parallel to the second mounting plate 12 and is consistent with the length direction of the second mounting plate 12.

[0048] In this embodiment, the driven gear 42 is provided with a connecting hole, and the first end of the connecting rod 325 is provided with a connecting hole. A rotating shaft is provided in the connecting hole of the connecting rod 325. The rotating shaft passes through the connecting hole of the driven gear 42 so that while the driven gear 42 drives the connecting rod 325 to rotate, the connecting rod 325 can rotate relative to the driven gear 42.

[0049] In some possible embodiments, the second mounting plate 12 is also provided with a clearance groove 122. After the first mounting plate 11 and the second mounting plate 12 are connected, part of the driven gear 42 is disposed in the clearance groove 122, and there is a gap between the driven gear 42 and the clearance groove 122. By disposing part of the driven gear 42 in the clearance groove 122, the height of the drive assembly 4 can be reduced, thereby reducing the overall size of the punching mechanism and reducing the cost of the punching mechanism; at the same time, it is also convenient to install the driven gear 42.

[0050] In this embodiment, the length direction of the clearance groove 122 is parallel to the axial direction of the driven gear 42, and the depth direction of the clearance groove 122 is consistent with the thickness direction of the second mounting plate 12.

[0051] In this embodiment, the clearance groove 122 is an arc-shaped groove, and the center of the arc-shaped groove coincides with the axis of the driven gear 42.

[0052] In some possible embodiments, the moving mold assembly 32 includes a first fastening member 322, a snap-fit ​​member 323, a connecting assembly 324, and a connecting rod 325; one end of the connecting rod 325 is rotatably connected to the first end of the connecting assembly 324, and the second end of the connecting assembly 324 is connected to the first fastening member 322; a first receiving groove 3221 is provided on the side of the first fastening member 322 away from the connecting rod 325, and the stamped part 321 is disposed in the first receiving groove 3221; the snap-fit ​​member 323 is disposed in the connecting assembly 324. The snap-fit ​​component 323 can snap into the snap-fit ​​base 21 to limit the position of the moving mold assembly 32. By setting both the first fastening component 322 and the snap-fit ​​component 323 on the connecting component 324, and the connecting component 324 being driven by the connecting rod 325, the snap-fit ​​component 323 snaps into the snap-fit ​​base 21 to achieve the positioning of the moving mold assembly 32. The first fastening component 322 cooperates with the feeding component 31 to punch the D-shaped tube, ensuring that the D-shaped tube is punched after positioning, thereby improving the punching accuracy of the D-shaped tube.

[0053] In this embodiment, the guide 121 is a guide rail, and the connecting component 324 is provided with a slider that cooperates with the guide rail. The connecting component 324 moves back and forth along the guide 121.

[0054] In this embodiment, the length of the guide member 121 is not limited, as long as the moving mold assembly 32 does not detach from the guide member 121 under the drive of the drive assembly 4.

[0055] In this embodiment, the connecting component 324 is provided with a connecting hole, and the second end of the connecting rod 325 is also provided with a connecting hole. A rotating shaft is provided in the connecting hole of the connecting rod 325. The rotating shaft passes through the connecting hole on the connecting component 324 so that the connecting rod 325 can rotate relative to the connecting component 324 while driving the connecting component 324 to move back and forth.

[0056] In this embodiment, the snap-fit ​​base 21 is fixedly mounted on the first mounting plate 11, and the snap-fit ​​member 323 has a U-shaped structure and forms a U-shaped groove. The U-shaped groove of the snap-fit ​​member 323 abuts against the upper and lower ends of the snap-fit ​​base 21 respectively, so as to snap-fit ​​onto the snap-fit ​​base 21. When the bottom of the U-shaped groove of the snap-fit ​​member 323 abuts against the side wall of the snap-fit ​​base 21, the positioning of the moving mold assembly 32 is achieved.

[0057] In this embodiment, the depth of the U-shaped groove is greater than the length of the snap-fit ​​seat 21 along the length direction of the guide member 121.

[0058] In this embodiment, the moving mold assembly 32 further includes a lifting component and a ejector component 327, which are respectively disposed on both sides of the connecting assembly 324, or the lifting component and ejector component 327 are respectively disposed on the same side of the connecting assembly 324; the ejector component 327 and the snap-fit ​​component 323 are respectively disposed on both sides of the connecting assembly 324.

[0059] For example, the lifting component is fixedly mounted on the connecting assembly 324 to lift the D-shaped tube; the ejector component 327 is rotatably mounted on one side of the connecting assembly 324. After the moving die assembly 32 punches the D-shaped tube, the moving die assembly 32 moves away from the feeding assembly 31, thereby driving the ejector component 327 to rotate around the connecting assembly 324 to abut against the D-shaped tube, thereby knocking the D-shaped tube off the stamping assembly 3 and realizing automatic material dropping.

[0060] In this embodiment, the specific structure of the connecting component 324 is not limited, as long as it cooperates with other components so that the moving mold component 32 can carry the D-shaped tube and punch it.

[0061] For example, the connection component 324 includes a plurality of cooperating connection plates.

[0062] In some possible embodiments, the feeding assembly 31 includes a second fastening member 311, a first connecting plate 312, a second connecting plate 313, a screw assembly 314, and a compression member 315; the first end of the first connecting plate 312 is fixedly disposed relative to the first end of the second connecting plate 313, and the two are connected by the screw assembly 314; the second end of the first connecting plate 312 is connected to the first end of the second fastening member 311, the second end of the second fastening member 311 can abut against the first fastening member 322, and the second end of the second fastening member 311 is provided with a second receiving groove 3111; the compression member 315 is sleeved on the screw assembly 314, and the first end of the compression member 315 is connected to the screw assembly 314. 14. Fixed connection, the second end of the compression member 315 abuts against the second end of the second connecting plate 313. The deformation of the compression member 315 can adjust the distance between the first connecting plate 312 or the second connecting plate 313 and the end of the screw assembly 314. When the compression member 315 is compressed to the limit position, the snap-fit ​​member 323 in the moving mold assembly 32 snaps against the snap-fit ​​seat 21, and the two cannot move relative to each other. This ensures that both the feeding assembly 31 and the moving mold assembly 32 are in the limit position, thereby ensuring that the receiving space formed by the abutment of the first receiving groove 3221 and the second receiving groove 3111 limits the D-shaped tube to prevent the D-shaped tube from deforming and improve the punching accuracy of the D-shaped tube.

[0063] In this embodiment, a limiting member is provided between the first connecting plate 312 and the second connecting plate 313. The two ends of the limiting member abut against the first connecting plate 312 and the second connecting plate 313 respectively, so that when the moving mold assembly 32 drives it to move, the first connecting plate 312 and the second connecting plate 313 can move synchronously and compress the compression member 315.

[0064] In this embodiment, the compression component 315 is a spring.

[0065] For example, the screw assembly 314 includes a connecting rod and a screw sleeved on the connecting rod. The screw is a hollow screw and is movable relative to the connecting rod. A limiting part is provided at the end of the connecting rod away from the compression member, which can prevent the connecting rod from falling off the first connecting plate 312 or the second connecting plate 313.

[0066] For example, the first end of the first connecting plate 312 is fixedly connected to the first end of the second connecting plate 313 by a screw, that is, the screw is disposed between the first connecting rod 312 and the second connecting plate 313; the compression member 315 is sleeved on the connecting rod, the first end of the compression member 315 is fixedly connected to the connecting rod, and the second end of the compression member 315 abuts against the second end of the second connecting plate 313.

[0067] In some possible embodiments, the length directions of the guide 121, the snap-fit ​​323, the screw assembly 314, and the stamping part 321 are arranged in parallel. By setting the above directions to be parallel, it can be ensured that the above components run in the same direction, avoid energy loss, avoid complex structures, simplify the structure, and reduce costs.

[0068] In some possible embodiments, the positioning component 2 further includes a pulley assembly 23, which is connected to the filler 22 by a connecting rope; a groove 24 is provided on the snap-fit ​​seat 21, and the pulley assembly 23 is disposed in the groove 24; there is a gap between the pulley assembly 23 and the first mounting plate 11; the snap-fit ​​member 323 extends into the gap, and the snap-fit ​​member 323 drives the pulley assembly 23 to move along the groove 24, so as to drive the filler 22 to move toward the end of the D-shaped tube. By setting the mutually cooperating pulley assembly 23 and filler 22, it is possible to achieve that when the snap-fit ​​member 323 extends into the gap and is snapped in the extreme position, the pulley assembly 23 can drive the filler 22 to extend into the end of the D-shaped tube to fill the end of the D-shaped tube and avoid deformation when the end of the D-shaped tube is punched.

[0069] In this embodiment, along the length direction of the guide member 121, two sliding grooves 24 are provided at intervals on the snap-fit ​​seat 21. The length direction of the sliding grooves 24 is perpendicular to the length direction of the guide member 121, and each sliding groove 24 is provided with a pulley shaft, on which a pulley is sleeved. The pulley in each sliding groove 24 is linked to a filler member 22.

[0070] In this embodiment, the distance between the slide groove 24 and the first mounting plate 11 is less than the width of the snap fastener 323, so that when the snap fastener 323 is inserted between the slide groove 24 and the first mounting plate 11, it can drive the pulley to move and drive the filler 22 to move toward the end of the D-shaped tube.

[0071] For example, the filler 22 is a mandrel with a D-shaped cross-section.

[0072] For example, along the height direction of the punching mechanism, two filler members 22 are spaced apart, that is, two D-shaped mandrels are spaced apart. The two D-shaped mandrels are symmetrically arranged, and the receiving space formed by the feeding assembly 31 and the moving mold assembly 32 abutting each other matches the shape of the two filler members 22.

[0073] Specifically, the arc-shaped surface of the D-shaped mandrel faces the second mounting plate 12, or the arc-shaped surface of the D-shaped mandrel faces away from the second mounting plate 12.

[0074] For example, a filler 22 is provided, and the receiving space formed by the abutment of the feeding assembly 31 and the moving mold assembly 32 matches the shape of the filler 22. The arc surface of the D-shaped mandrel faces the second mounting plate 12, or the arc surface of the D-shaped mandrel faces away from the second mounting plate 12.

[0075] In some possible embodiments, the first end of the snap-fit ​​323 is connected to the connecting assembly 324, and the second end of the snap-fit ​​323 is a wedge. The inclined surface of the wedge is connected to the pulley assembly 23. By setting the second end of the snap-fit ​​323 as a wedge, the snap-fit ​​323 can drive the pulley assembly 23 to move, thereby driving the filler 22 to extend into the end of the D-shaped tube.

[0076] In some possible embodiments, a feeding assembly 5 is also included, which is disposed above the moving mold assembly 32. The feeding assembly 5 has a feeding port that is slightly larger than the width of the D-shaped tube. The feeding assembly 5 can guide a D-shaped tube onto the moving mold assembly 32 through the feeding port. By setting the feeding assembly 5, the D-shaped tube can be stably transported onto the moving mold assembly 32, so that the punching mechanism can realize automated feeding, punching and unloading, and realize automated operation of the punching mechanism.

[0077] The working process of the punching mechanism is as follows: The D-shaped tube is placed in the feeding assembly 5 and introduced into the moving mold assembly 32 through the feeding port of the feeding assembly 5. The moving mold assembly 32 carries the D-shaped tube towards the feeding assembly 31. The snap-fit ​​part 323 of the moving mold assembly 32 snaps into the snap-fit ​​seat 21 in the positioning assembly 2. The feeding assembly 31 and the moving mold assembly 32 move to the limit position. At this time, the snap-fit ​​part 323 can drive the pulley assembly 23 to move, so as to drive the filler 22 to move towards the end of the D-shaped tube and extend into the end of the D-shaped tube. At this time, the limiting of the D-shaped tube and the filling of the end are realized. The punching part 321 of the moving mold assembly 32 punches the D-shaped tube.

[0078] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

[0079] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0080] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A piercing mechanism for piercing a D-tube, characterized by, The utility model relates to a D-shaped pipe punching device, which comprises the following components: A fixing assembly (1); A positioning assembly (2) provided on the fixing assembly (1) and comprising a clamping seat (21) and a filler (22) capable of extending into the end of a D-shaped pipe, wherein the filler (22) is movably arranged on the clamping seat (21); A punching assembly (3) provided on the fixing assembly (1) and comprising a feeding assembly (31) and a movable die assembly (32) capable of carrying the D-shaped pipe to move, wherein the first end of the movable die assembly (32) is in abutment with the feeding assembly (31) to form a containing space for containing the D-shaped pipe, the movable die assembly (32) is provided with a punching piece (321) extending towards the feeding assembly (31), and the movable die assembly (32) is capable of moving towards the feeding assembly (31) to enable the movable die assembly (32) to be clamped with the clamping seat (21) and the filler (22) to be filled into the end of the D-shaped pipe; A driving assembly (4) having one end drivingly connected with the second end of the movable die assembly (32), wherein under the driving of the driving assembly (4), the movable die assembly (32) drives the D-shaped pipe to move towards the feeding assembly (31), and the punching piece (321) is capable of abutting against the D-shaped pipe filled with the filler (22) at the end to punch a hole.

2. The piercing mechanism of claim 1 wherein, The fixing assembly (1) comprises a first mounting plate (11) and a second mounting plate (12) connected with each other; The positioning assembly (2), the driving assembly (4) and the feeding assembly (31) are arranged on the first mounting plate (11); The second mounting plate (12) is provided with a guide (121) along the direction from the movable die assembly (32) to the feeding assembly (31), and the movable die assembly (32) is in sliding connection with the guide (121).

3. The piercing mechanism of claim 2, wherein, The driving assembly (4) comprises a driving piece, a driving gear (41) and a driven gear (42) in meshing connection with each other; The second end of the movable die assembly (32) is connected with the driven gear (42) through a connecting rod (325), under the driving of the driving piece, the driving gear (41) drives the driven gear (42) to rotate, the driven gear (42) drives the connecting rod (325) to rotate, and the connecting rod (325) drives the movable die assembly (32) to reciprocally move on the guide (121).

4. The piercing mechanism of claim 3 wherein, The second mounting plate (12) is further provided with an avoiding groove (122), and after the first mounting plate (11) and the second mounting plate (12) are connected, part of the driven gear (42) is arranged in the avoiding groove (122), and there is a gap between the driven gear (42) and the avoiding groove (122).

5. The piercing mechanism of claim 4 wherein, The movable die assembly (32) comprises a first buckling piece (322), a clamping piece (323), a connecting assembly (324) and a connecting rod (325). One end of the connecting rod (325) is rotatably connected with a first end of the connecting assembly (324), a second end of the connecting assembly (324) is connected with the first clamping piece (322), and the first clamping piece (322) is provided with a first accommodating groove (3221) on a side away from the connecting rod (325), and the punching piece (321) is arranged in the first accommodating groove (3221); The clamping piece (323) is arranged on the connecting assembly (324), and the clamping piece (323) can be clamped with the clamping seat (21) to limit the movable die assembly (32).

6. The piercing mechanism of claim 5 wherein, The feeding assembly (31) comprises a second clamping piece (311), a first connecting plate (312), a second connecting plate (313), a screw rod assembly (314) and a compression piece (315); The first end of the first connecting plate (312) is fixedly arranged opposite to the first end of the second connecting plate (313), and the two are connected through the screw rod assembly (314); the second end of the first connecting plate (312) is connected with the first end of the second clamping piece (311), the second end of the second clamping piece (311) can abut against the first clamping piece (322), and the second end of the second clamping piece (311) is provided with a second accommodating groove (3111); The compression piece (315) is sleeved on the screw rod assembly (314), and the first end of the compression piece (315) is fixedly connected with the screw rod assembly (314), and the second end of the compression piece (315) abuts against the second end of the second connecting plate (313).

7. The piercing mechanism of claim 6 wherein, The length direction of the guide piece (121), the length direction of the clamping piece (323), the length direction of the screw rod assembly (314) and the length direction of the punching piece (321) are arranged in parallel.

8. The piercing mechanism of claim 5 wherein, The positioning assembly (2) further comprises a pulley assembly (23), and the pulley assembly (23) is connected with the filling piece (22) through a connecting rope; The clamping seat (21) is provided with a sliding groove (24), and the pulley assembly (23) is arranged in the sliding groove (24); the pulley assembly (23) has a gap with the first mounting plate (11); The clamping piece (323) extends into the gap, and the clamping piece (323) drives the pulley assembly (23) to move along the sliding groove (24) to drive the filling piece (22) to move towards the end of the D-shaped tube.

9. The piercing mechanism of claim 8, wherein, The first end of the clamping piece (323) is connected with the connecting assembly (324), and the second end of the clamping piece (323) is a wedge part, and the inclined surface of the wedge part is connected with the pulley assembly (23).

10. The piercing mechanism of any one of claims 1-9, wherein, Further comprising a feeding assembly (5), which is arranged above the movable die assembly (32); The feeding assembly (5) has a feeding port, which is slightly larger than the width of the D-shaped tube, and the feeding assembly (5) can guide one D-shaped tube into the movable die assembly (32) through the feeding port.

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