Feeding clamping device of pipe bending machine

Abstract

The utility model provides a feeding clamping device of a pipe bending machine, which relates to the technical field of pipe bending devices and comprises a sliding seat, the sliding seat is slidably arranged, a first driving source for driving the sliding seat to slide is fixedly arranged on one side of the sliding seat, a rotating seat is rotatably arranged at the top of the sliding seat, and a second driving source for driving the rotating seat to rotate is fixedly arranged on one side of the rotating seat. A rotating shaft is fixedly arranged on the side, away from the second driving source, of the rotating seat, a clamping assembly is fixedly arranged at the tail end of the rotating shaft and comprises a pair of clamping claws which are symmetrically and rotationally arranged, clamping blocks are fixedly arranged on the opposite inner sides of one ends of the two clamping claws, and the two clamping blocks are locked mutually when the two clamping claws rotate to be parallel; a third driving source for driving the two clamping claws to rotate relatively is further fixedly arranged at the top of the sliding seat, the clamping assembly is driven to move by adopting a double-driving structure of the sliding seat and the rotating seat, and the problems that the feeding angle of a traditional clamping device cannot be adjusted, the machining efficiency of complex pipe fittings is low, and the machining quality is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe bending device technical field especially relates to a feeding clamping device of pipe bender. BACKGROUND

[0002] Pipe bender is used for bending metal pipe material into specific angle processing equipment, is widely used in automobile manufacturing, construction engineering, furniture production etc. field, its core function is through to pipe material exert controllable bending force, realizes high accuracy, high efficiency plastic deformation, traditional pipe bender usually is composed of clamping mechanism, feeding mechanism and bending mould, when working, clamping mechanism fixes pipe material one end, feeding mechanism promotes pipe material and moves to set position, then is completed by bending mould forming, can effectively replace artificial pipe bending operation, significantly promotes processing efficiency and consistency, avoids the material waste caused by hand error simultaneously, ensures that pipe structure strength and appearance quality satisfy industrial demand.

[0003] However, the clamping mechanism of the existing pipe bender has obvious defects in actual application. In the continuous processing process, the existing clamping mechanism usually adopts fixed clamping design to maintain the positioning stability of the pipe material. The feeding angle cannot be adjusted. When processing complex pipe fittings that require multi-plane composite bending, the operator has to disassemble the pipe material multiple times to adjust the clamping angle, or replace / add different direction bending molds for processing. This intermittent operation not only significantly reduces production efficiency, but also causes cumulative positioning errors due to multiple clamping and moving, further affecting the processing quality of high-end precision pipe fittings. SUMMARY

[0004] To solve the problems of the existing pipe bender clamping mechanism using fixed clamping design, the feeding angle cannot be adjusted, the processing efficiency of complex pipe fittings is low, and the processing quality is affected, the utility model provides a feeding clamping device of pipe bender.

[0005] According to the embodiment of the utility model, a feeding clamping device of pipe bender comprises:

[0006] The sliding seat is slidably arranged, and a first driving source for driving the sliding of the sliding seat is fixed on one side of the sliding seat.

[0007] The rotating seat is rotatably arranged on the top of the sliding seat, a second driving source for driving the rotation of the rotating seat is fixed on one side of the rotating seat, and a rotating shaft is fixed on the side away from the second driving source.

[0008] The clamping assembly is fixedly arranged at the end of the rotating shaft, and comprises a pair of clamping claws arranged symmetrically and rotatably, and clamping blocks fixedly arranged at opposite inner sides of one end of the clamping claws, and the clamping blocks are locked to each other when the clamping claws are rotated to be parallel, and the top of the sliding seat is further fixedly provided with a third driving source for driving the relative rotation of the clamping claws.

[0009] The technical principle of the utility model is as follows: when in use, the third driving source is started to drive the relative rotation of the clamping claws to be parallel, so that the clamping blocks are locked to each other to clamp the pipe, then the first driving source is started to drive the sliding seat to slide and feed the pipe, according to the shape and size required to process the pipe, the angle of the pipe during feeding is adjusted by starting the second driving source, so that the pipe can be controlled in the bending direction by the rotating seat under the condition that the bending angle is fixed, which is simple and convenient to operate and has high processing efficiency.

[0010] Further, the bottom of the sliding seat is fixedly provided with a feeding base, the feeding base is fixedly provided with a sliding groove above, and the sliding seat is slidingly arranged in the sliding groove.

[0011] Further, the first driving source comprises a first servo motor, the first servo motor is fixedly arranged at one side of the feeding base, a lead screw is arranged in the sliding groove and rotates axially, the lead screw is screw-connected with the bottom of the sliding seat, and the output shaft of the first servo motor is fixedly connected with the lead screw.

[0012] Further, a pair of guide rods are fixedly arranged at both ends of the top of the sliding groove along the sliding direction of the sliding seat, a pair of guide blocks are fixedly arranged at both ends of the bottom of the sliding seat, a guide groove is fixedly arranged at the bottom of the guide block, and the guide groove can be embedded with and slide relative to the guide rod.

[0013] Further, a pair of vertical plates are fixedly arranged opposite to the top of the sliding seat, a fixed block is fixedly connected between the sliding seat and the two vertical plates, and the rotating seat penetrates and rotates in the fixed block.

[0014] Further, the second driving source comprises a second servo motor, the second servo motor is fixedly arranged on the vertical plate through a mounting plate, the output shaft of the second servo motor is fixedly connected with a driving gear, a driven gear is fixedly connected on the rotating seat, and the driving gear and the driven gear are meshed with each other.

[0015] Further, the end of the rotating shaft is fixedly connected with a connecting seat, the connecting seat is provided with a clearance groove, and the clamping claws are arranged in the clearance groove and rotate up and down in a V shape.

[0016] Further, a double-end sliding pipe is sleeved on the rotating shaft, and a pair of rocker arms are hingedly connected to one end of the double-end sliding pipe.

[0017] Further, the third driving source comprises a cylinder fixedly arranged on one of the vertical plates, and a telescopic shaft of the cylinder is connected with the double-end sliding pipe.

[0018] Further, a connecting plate is fixedly arranged on the other vertical plate, a pair of connecting rods are rotatably arranged on the connecting plate, rotating blocks are rotatably arranged on the sides of the connecting rods away from the connecting plate, the rotating blocks are fixedly connected with the telescopic shaft, the middle parts of the connecting rods are rotatably connected with the upper and lower sides of the double-end sliding pipe, and the middle parts and the sides of the connecting rods are provided with first and second U-shaped grooves for transverse movement of the double-end sliding pipe and the rotating blocks.

[0019] Compared with the prior art, the utility model has the advantages that: by adopting the double driving structure of the sliding seat and the rotating seat, the clamping assembly is driven to rotate by the rotating seat, the problem that the traditional clamping device cannot adjust the pipe angle during feeding is solved, single station can complete multi-angle bending direction control without disassembling the pipe or changing the bending die, multi-plane continuous bending is completed, the processing downtime and positioning error are significantly reduced, the processing efficiency is improved, and the precision pipe processing quality and product consistency are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the embodiment of the utility model.

[0021] Figure 2 It is Figure 1 It is a structure enlarged schematic view of position A in the middle.

[0022] Figure 3 It is a sliding seat and clamping mechanism side assembly schematic view of the embodiment of the utility model.

[0023] Figure 4 It is a sliding seat and clamping mechanism back assembly schematic view of the embodiment of the utility model.

[0024] Figure 5 It is Figure 4 It is a structure enlarged schematic view of position B.

[0025] Figure 6 It is a connecting rod structure schematic view of the embodiment of the utility model.

[0026] In the above drawings: 1, feeding base; 11, sliding groove; 111, screw rod; 112, first servo motor; 113, guide rod; 2, sliding seat; 21, guide block; 211, guide groove; 22, support plate; 23, vertical plate; 24, top plate; 25, mounting plate; 251, feeding hole; 26, fixed block; 3, rotating seat; 31, connecting seat; 32, rotating shaft; 33, second servo motor; 34, driven gear; 35, driving gear; 4, connecting rod; 41, connecting plate; 42, rotating block; 43, air cylinder; 431, telescopic shaft; 44, side plate; 45, first U-shaped groove; 46, second U-shaped groove; 5, clamping jaw; 51, clamping block; 52, limiting groove; 53, rocker; 6, double-head sliding pipe; DETAILED DESCRIPTION

[0027] The technical scheme in the utility model is further explained below in combination with the drawings and embodiments.

[0028] As Figure 1 shown in the utility model embodiment, a feeding and clamping device of a pipe bending machine is provided, which comprises a sliding seat 2, the bottom of the sliding seat 2 is fixedly provided with a feeding base 1, the feeding base 1 is fixedly provided with a sliding groove 11 above, the sliding seat 2 is slidingly arranged in the sliding groove 11, one side of the sliding seat 2 is fixedly provided with a first driving source for driving the sliding of the sliding seat 2, the first driving source comprises a pneumatic cylinder, a hydraulic cylinder or a linear motor and other mechanisms capable of driving the sliding seat 2 to slide in the sliding groove 11, in the embodiment, the first driving source is provided as a first servo motor 112, the first servo motor 112 is fixedly arranged on one side of the feeding base 1, a screw rod 111 is arranged in the sliding groove 11 in an axial rotating manner, the bottom of the sliding seat 2 is provided with a through hole for the screw rod 111 to pass through, the through hole is provided with an internal thread capable of engaging with the screw rod 111, so that the screw rod 111 is threadedly engaged with the bottom of the sliding seat 2, the output shaft of the first servo motor 112 is fixedly connected with the screw rod 111, when the first servo motor 112 rotates, the sliding seat 2 can be driven to slide by the screw rod 111, thereby performing precise feeding operation.

[0029] As Figures 1-3As shown in this embodiment, to further ensure the stability of the sliding seat 2 during sliding, a pair of guide rods 113 are fixedly provided at both ends of the top of the sliding groove 11 along the sliding direction of the sliding seat 2, and a pair of guide blocks 21 are fixedly provided at both ends of the bottom of the sliding seat 2. The bottom of the guide block 21 is provided with a guide groove 211. The guide groove 211 can be interlocked with the guide rods 113 and slide relative to each other. The cooperation between the guide block 21 and the guide rods 113 can effectively distribute the torque on the sliding seat 2 during clamping and provide precise guidance for the sliding seat 2. This is beneficial to protecting the stability of the screw 111 and the sliding seat 2 and improving the service life of the components. The height of the sliding seat 2 can also be adjusted by adding a support plate 22 in the middle of the sliding seat 2 with bolts to meet the feeding needs in more scenarios.

[0030] like Figures 1-5 As shown, this utility model embodiment proposes a feeding clamping device for a pipe bending machine, which also includes a rotating seat 3. The rotating seat 3 is rotatably mounted on the top of the sliding seat 2. A pair of upright plates 23 are fixedly mounted opposite each other at both ends of the top of the sliding seat 2. A top plate 24 is also fixedly connected to the top of the two upright plates 23 by bolts. The top plate 24 is fixedly mounted on the top of the sliding seat 2 by bolts. The upright plates 23 and the top plate 24 are connected to each other on the top of the sliding seat 2 to form a box-shaped frame structure to protect the internal structure. A fixing block 26 is fixedly mounted between the two upright plates 23 of the sliding seat 2. The fixing block 26 is fixedly connected to the top plate 24 and the sliding seat 2 by bolts at the top and bottom respectively. The rotating seat 3 is rotatably mounted inside the fixing block 26. A second driving source for driving the rotation of the rotating seat 3 is fixedly mounted on one side of the rotating seat 3 parallel to the upright plates 23. In this embodiment, the... The second drive source includes a second servo motor 33, which is fixedly mounted on the upright plate 23 via a mounting plate 25. The mounting plate 25 is fixedly connected to the side wall of the upright plate 23 by bolts. A drive gear 35 is fixedly connected to the output shaft of the second servo motor 33. A driven gear 34 is fixedly connected to the side of the rotating seat 3 near the second servo motor 33. The drive gear 35 and the driven gear 34 mesh with each other, so that the second servo motor 33 can precisely control the rotation direction and angle of the rotating seat 3. A rotating shaft 32 is fixedly mounted on the side of the rotating seat 3 away from the second servo motor 33. The rotating seat 3 and the rotating shaft 32 are hollow structures with a through-hole axially connected inside. A feed hole 251 connected to and adapted to the through-hole is provided on the mounting plate 25 for feeding pipes.

[0031] like Figure 1-4The utility model discloses a feeding clamping device of pipe bending machine, still include clamping subassembly, the clamping subassembly fixedly arranged at the end of rotation axis 32, the clamping subassembly includes the pair of clamping claw 5 of symmetrical rotation arrangement, two the clamping claw 5 is V type, and the opposite inner side of one end of two the clamping claw 5 is detachably fixed with clamping block 51, and two clamping block 51 are locked mutually when two the clamping claw 5 rotates to parallel, in this embodiment, the clamping block 51 is fixedly connected in the inner side of the clamping claw 5 through bolt, so as to carry out quick replacement according to the actual situation of production the clamping block 51, the inner side of the clamping block 51 is provided with the limiting groove 52 matched with the pipe diameter, further strengthen the clamping effect of pipe material, and the opposite side of two the clamping block 51 is fixed with the anti -skid wear -resisting elastic material, such as polyurethane elastomer, silicon rubber or thermoplastic polyurethane, and more further improve the clamping effect, and rigid damage can not be caused to pipe material.

[0032] As Figure 1-4 In this embodiment, more specifically, the end of the rotating shaft 32 is fixedly connected with a connecting seat 31, the connecting seat 31 is provided with a clearance groove, the two clamping claws 5 are opened outward and upward and are rotatably arranged in the clearance groove, a double-headed sliding pipe 6 is slidably sleeved on the rotating shaft 32, one end of the double-headed sliding pipe 6 is upwardly and oppositely hinged with a pair of rocker arms 53, the two rocker arms 53 are respectively hinged with the other ends of the two clamping claws 5, further, the top of the sliding seat 2 is further fixedly provided with a third driving source for driving the double-headed sliding pipe 6 to slide, in this embodiment, the third driving source is a gas cylinder 43, the gas cylinder 43 is fixedly arranged on the side plate 44 fixedly connected with the vertical plate 23, the telescopic shaft 431 of the gas cylinder 43 is connected with the double-headed sliding pipe 6, so that when the gas cylinder 43 drives the double-headed sliding pipe 6 to slide outward along the rotating shaft 32, the rocker arms 53 can push the clamping claws 5 to rotate around the hinge points to the parallel state, so as to realize clamping, and vice versa.

[0033] As Figure 1-4 And Figure 6As shown, as a more preferred embodiment of the present embodiment, further, the other side of the connecting plate 41 is fixedly provided with a connecting plate 41, and the upper and lower ends of the connecting plate 41 are rotatably provided with a pair of connecting rods 4 through a pin, and the two connecting rods 4 are rotatably provided with a rotating block 42 on the side away from the connecting plate 41, and the rotating block 42 is fixedly connected with the telescopic shaft 431, and the rotating block 42, the connecting rod 4 and the connecting plate 41 are connected to form a rectangular frame structure, and the telescopic rod can drive the frame structure to rotate around the rotating shaft of the connecting plate 41 and the connecting rod 4 as the center of rotation, and the upper and lower sides of the other end of the double-head sliding pipe 6 are rotatably connected with the two connecting rods 4, respectively, when the telescopic shaft 431 is extended to drive the frame structure to rotate, the frame structure will drive the double-head sliding pipe 6 rotatably connected with the middle part to slide outward, but since the moving direction of the frame structure is arc-shaped, and the moving direction of the double-head sliding pipe 6 is not parallel, so during the rotation, the pin rotatably connected with the double-head sliding pipe 6 and the rotating block 42 will be rigidly extruded with the connecting rod 4, thereby affecting the service life of the components, therefore, in combination with Figure 6 As shown, the middle part and one side of the connecting rod 4 are further provided with a first U-shaped groove 45 and a second U-shaped groove 46, and the first U-shaped groove 45 and the second U-shaped groove 46 can be used for the transverse movement of the double-head sliding pipe 6 and the rotating block 42, and can be used for the movement of the double-head sliding pipe 6 and the rotating block 42.

[0034] The technical principle of the utility model is as follows: in use, the telescopic shaft 431 is perpendicular to the connecting rod 4, at this time, the double-head sliding pipe 6 is located close to the rotating seat 3, and the clamping claw 5 is in an open state; in use, the telescopic shaft 431 drives the rotating seat 3 to extend outward, the rotating seat 3 drives the double-head sliding pipe 6 located in the middle part to slide outward, pushes the clamping claw 5 to rotate relatively to parallel, so that the two clamping blocks 51 are locked to each other to clamp the pipe, then the first servo motor 112 is started to drive the screw rod 111 to rotate to control the position and feeding speed of the sliding seat 2, and the pipe is fed, according to the shape and size required by the pipe, the second servo motor 33 is started to rotate and adjust the angle of the pipe feeding, so that the pipe can be controlled in the bending direction through the rotating seat 3 under the condition that the bending angle is fixed, the operation is simple and convenient, and the processing efficiency is high.

[0035] Compared with the prior art, the utility model has the following beneficial effects: through adopting the double drive structure of sliding seat 2 and rotating seat 3, the clamping assembly is driven to rotate through rotating seat 3, the problem that the traditional clamping device cannot adjust the angle of the pipe material during feeding is solved, single station can realize multi-angle bending direction control without disassembling the pipe material or changing the bending die, multi-plane continuous bending is completed, the machining pause time and positioning error are remarkably reduced, the machining efficiency is improved, and the precision pipe fitting machining quality and product consistency are further improved.

[0036] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the utility model and are not limited. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the utility model, and they should be covered in the scope of the claims of the utility model.

Claims

1. A feeding and holding device for a pipe bending machine, characterized in that Include: Sliding seat (2), the sliding seat (2) is provided, one side of the sliding seat (2) is provided with a first drive source for driving the sliding thereof; Rotary seat (3), the rotary seat (3) is rotatably arranged on the top of the sliding seat (2), one side of the rotary seat (3) is provided with a second drive source for driving the rotation thereof, and the rotary seat (3) is provided with a rotating shaft (32) on the side away from the second drive source; Clamping assembly, the clamping assembly is fixedly arranged at the end of the rotating shaft (32), the clamping assembly comprises a pair of clamping jaws (5) arranged symmetrically and rotatably, the opposite inner sides of the two ends of the two clamping jaws (5) are fixedly provided with clamping blocks (51), the two clamping blocks (51) are locked with each other when the two clamping jaws (5) are rotated to be parallel, and the top of the sliding seat (2) is further provided with a third drive source for driving the relative rotation of the two clamping jaws (5).

2. A feed and clamp assembly for a pipe bender as defined in claim 1 wherein: The bottom of the sliding seat (2) is fixedly provided with a feeding base (1), and the feeding base (1) is fixedly provided with a sliding groove (11) above.

3. A tube feeding and holding device for a tube bender as defined in claim 2, characterized in that: The first drive source comprises a first servo motor (112), the first servo motor (112) is fixedly arranged on one side of the feeding base (1), a lead screw (111) is rotatably arranged in the sliding groove (11) in an axial direction, the lead screw (111) is threadedly connected with the bottom of the sliding seat (2), and the output shaft of the first servo motor (112) is fixedly connected with the lead screw (111).

4. A tube bending machine feed and clamp assembly as claimed in claim 3, wherein: A pair of guide rods (113) are fixedly arranged at the two ends of the top of the sliding groove (11) along the sliding direction of the sliding seat (2), a pair of guide blocks (21) are fixedly arranged at the two ends of the bottom of the sliding seat (2), a guide groove (211) is fixedly arranged at the bottom of the guide block (21), and the guide groove (211) can be embedded and relatively slid with the guide rod (113).

5. A tube feeding and holding device for a tube bender as defined in claim 1, wherein: A pair of vertical plates (23) are fixedly arranged opposite to the top of the sliding seat (2), the sliding seat (2) is fixedly connected with a fixing block (26) between the two vertical plates (23), and the rotary seat (3) is rotatably arranged in the fixing block (26).

6. A tube bending machine feed and clamp assembly as claimed in claim 5, wherein: The second drive source comprises a second servo motor (33), the second servo motor (33) is fixedly arranged on the vertical plate (23) through a mounting plate (25), the output shaft of the second servo motor (33) is fixedly connected with a driving gear (35), the rotary seat (3) is fixedly connected with a driven gear (34), and the driving gear (35) and the driven gear (34) are meshed with each other.

7. A tube bending machine feed and clamp assembly as defined in claim 5 wherein: The rotating shaft (32) is fixedly connected with a connecting seat (31) at the end thereof, the connecting seat (31) is provided with a clearance groove, and the two clamping jaws (5) are rotatably arranged in the clearance groove in a V shape.

8. A tube bending machine feed and clamp assembly as claimed in claim 7, wherein: A double-head sliding pipe (6) is slidably sleeved on the rotating shaft (32), one end of the double-head sliding pipe (6) is hingedly connected with a pair of rocker arms (53) opposite to each other in an up-down direction, and the two rocker arms (53) are respectively hingedly connected with the one ends of the two clamping jaws (5).

9. A tube bending machine feed and clamp assembly as claimed in claim 8, wherein: The third driving source comprises a cylinder (43) fixedly arranged on one of the vertical plates (23), and a telescopic shaft (431) of the cylinder (43) is connected with the double-head slide pipe (6).

10. A tube bending machine feed and clamp assembly as claimed in claim 9, wherein: Another vertical plate (23) is fixedly arranged with a connecting plate (41), and a pair of connecting rods (4) are rotatably arranged on the connecting plate (41) in an up-down manner. The two connecting rods (4) are rotatably arranged with rotating blocks (42) on the side away from the connecting plate (41), the rotating blocks (42) are fixedly connected with the telescopic shaft (431), and the middle parts of the two connecting rods (4) are rotatably connected with the upper and lower sides of the double-head slide pipe (6). The middle part and the side surface of the connecting rod (4) are provided with a first U-shaped groove (45) and a second U-shaped groove (46) for transverse movement of the double-head slide pipe (6) and the rotating block (42).

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