Rotary quick-change mechanical clamping jaw

Abstract

The utility model provides a rotary quick-change mechanical clamping jaw, which belongs to the technical field of profile clamping jaws and comprises a clamping jaw component, a mechanical arm, a rotary component and a driving component. The clamping jaw assembly comprises a jaw seat, one side of the jaw seat protrudes outwards to form a fixing rod, the other side of the jaw seat is slidably connected with a pull rod, one end of the pull rod is rotatably connected with one end of a connecting plate, and the other end of the pull rod is connected with an ejector rod. The middle of the movable rod is rotationally connected with one end of a supporting plate, and the other end of the supporting plate is fixedly connected to the middle of the fixed rod; a clamping space is formed between the end part of the fixed rod and the end part of the movable rod; the driving assembly drives the axis of the ejector rod to move so that the clamping jaw sets can clamp aluminum profiles, the rotating assembly drives the clamping jaws to rotate, different cavity faces of the profiles can be clamped, and therefore the clamping requirements for the different profiles are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to section bar clamping jaw technical field, and specifically relates to a rotary quick-change mechanical clamping jaw. BACKGROUND

[0002] In the aluminum door and window manufacturing industry, aluminum profile as the core material, its machining precision and efficiency are directly related to the quality and production cost of products. With the diversification of market demand, the specification, shape and material of aluminum profile are increasingly rich, which puts forward higher requirements on the adaptability of processing equipment, especially mechanical clamping jaw. However, the mechanical clamping jaw widely used in the current market has design defects, which is difficult to fully meet the machining requirements of aluminum profile for aluminum door and window equipment.

[0003] The existing mechanical clamping jaw often shows obvious insufficient adaptability when clamping aluminum profile due to the difference of profile specification and shape. In the actual production process, the operator often needs to frequently replace the clamping jaw according to the change of profile, which not only breaks the continuity of production process, reduces the production efficiency, but also increases the equipment downtime, affects the overall production progress. In addition, the inconvenience of replacing the clamping jaw also brings additional maintenance cost, including the loss of the clamping jaw itself, the time required for replacement and labor cost, etc. Therefore, a mechanical clamping jaw capable of adapting to different aluminum profile shapes and capable of quick disassembly is needed to adapt to aluminum profile production. UTILITY MODEL CONTENTS

[0004] In order to solve the problems existing in the prior art, a rotary quick-change mechanical clamping jaw is proposed.

[0005] The utility model solves the technical problem by the following technical scheme: a rotary quick-change mechanical clamping jaw, comprising a clamping jaw assembly, a mechanical arm, a rotating assembly and a driving assembly;

[0006] The clamping jaw assembly comprises a jaw seat, the jaw seat protrudes outward on one side to form a fixed rod, the other side of the jaw seat is slidably connected with a pull rod, one end of the pull rod is rotatably connected with one end of a connecting plate, the other end of the pull rod is connected with a top rod; the other end of the connecting plate is rotatably connected with a movable rod, one end of the movable rod is rotatably connected with a supporting plate, the other end of the supporting plate is fixedly connected with the middle part of the fixed rod; a clamping space is formed between the end part of the fixed rod and the end part of the movable rod;

[0007] The mechanical arm comprises a sleeve, the top rod is slidably connected in the sleeve; the sleeve is connected with a circular pipe joint at both ends, the top rod extends out of the circular pipe joints at both ends, the jaw seat of the clamping jaw assembly is fixed on the circular pipe joint at one end, the circular pipe joint at the other end is connected with the rotating assembly, and the rotating assembly can drive the sleeve and the clamping jaw assembly to rotate; the end part of the top rod is connected with the driving assembly, and the driving assembly can drive the top rod to move axially.

[0008] Preferably, the driving assembly comprises a cylinder seat, a cylinder fixedly connected to the cylinder seat, and a top rod connected to an extension end of the cylinder.

[0009] Preferably, the rotating assembly comprises a motor seat fixed to the cylinder seat, a rotating motor fixedly connected to the motor seat, and an output shaft of the rotating motor connected to a first pulley; a pulley shaft is sleeved on the top rod and connected to a round pipe joint at one end of the sleeve; a second pulley is sleeved on the pulley shaft, the pulley shaft can rotate with the second pulley, and the first pulley and the second pulley are connected by a synchronous belt.

[0010] Preferably, the bottom of the cylinder seat is sleeved on the pulley shaft, and the bottom of the cylinder seat is provided with a needle bearing and a thrust ball bearing at both ends to reduce friction between the cylinder seat and the pulley shaft.

[0011] Preferably, a first key groove is formed in the inner side of the second pulley, a second key groove is formed on the outer wall of the pulley shaft, a connecting key is inserted into the first key groove and the second key groove to achieve sliding connection between the second pulley and the pulley shaft.

[0012] Preferably, a through hole is formed in the support plate, a contact boss is slidably connected in the through hole, the contact boss is connected to a proximity sensor, the proximity sensor is electrically connected to a magnetic connector cathode, a magnetic connector anode is arranged on the corresponding round pipe joint, and the magnetic connector anode is electrically connected to a corresponding control terminal.

[0013] Preferably, a mounting hole is formed in the claw seat, a linear bearing is connected in the mounting hole, and the pull rod can slide in the linear bearing.

[0014] Preferably, a first connecting hole is formed in one end of the pull rod, a rotating shaft is connected in the first connecting hole, a second connecting hole is formed in the end of the corresponding connecting plate, an installation groove is further formed in the middle of the connecting plate, the second connecting hole vertically penetrates the installation groove, the end of the pull rod can extend into the installation groove, and the two ends of the rotating shaft penetrate the second connecting hole; a clamping groove is formed in the other end of the pull rod, a clamping block is formed in the end of the corresponding top rod, and the clamping block is inserted into the clamping groove to achieve connection between the pull rod and the top rod.

[0015] Preferably, a tapered tip is formed in the end of the fixed rod, and a groove for increasing friction is formed in the end of the movable plate towards the tapered tip.

[0016] Preferably, threads are formed in the end of the top rod and the extension end of the cylinder, and the top rod and the extension end of the cylinder are connected by a connecting nut.

[0017] Compared with the prior art, the above technical solution has the following advantages or beneficial effects:

[0018] 1. This utility model uses a drive assembly to move the axis of the top rod to enable the gripper assembly to clamp the aluminum profile. The rotating assembly drives the gripper to rotate, which can clamp different cavities of the profile, thereby meeting the clamping requirements of different profiles.

[0019] 2. This utility model adopts a split design, connecting the gripper assembly and the robotic arm through a round tube connector, and connecting the contact boss and the contact sensor through a magnetic connector, which facilitates quick replacement of the gripper assembly and improves maintenance efficiency. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a structural schematic diagram of the present invention in the clamping state.

[0022] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0023] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0024] Figure 4 This is a schematic diagram of the structure of this utility model in a relaxed state.

[0025] Figure 5 yes Figure 4 Enlarged view of point C in the middle.

[0026] Figure 6 This is a schematic diagram of the structure without the claw base.

[0027] Figure 7 yes Figure 6 Enlarged view of point D in the middle.

[0028] Figure 8 This is a separate view of the connection between the round pipe fitting and the claw seat.

[0029] Figure 9 This is a structural diagram of the connecting plate.

[0030] Figure 10 This is a structural diagram of the tie rod.

[0031] Figure 11 This is a front view of the present invention.

[0032] Figure 12 yes Figure 11 The sectional view at point a.

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 100, jaw assembly; 110, jaw base; 111, mounting hole; 112, linear bearing; 113, magnetic connector cathode; 120, fixed rod; 121, through hole; 122, contact boss; 123, proximity sensor; 124, tapered tip; 130, pull rod; 131, clamping groove; 132, first connecting hole; 140, connecting plate; 141, rotating shaft; 142, mounting groove; 143, second connecting hole; 150, movable rod; 151, groove; 160, support plate; 170, clamping space; 200, mechanical arm; 210, top rod; 211, clamping block; 220, sleeve; 230, round pipe joint; 231, magnetic connector anode; 300, rotating assembly; 310, rotating motor; 320, motor base; 330, first pulley; 340, second pulley; 341, first key groove; 342, connecting key; 350, synchronous belt; 360, pulley shaft; 361, second key groove; 400, driving assembly; 410, cylinder base; 411, fixed hole; 412, needle and thrust ball bearing; 420, cylinder; 430, connecting nut; 500, aluminum profile. DETAILED DESCRIPTION

[0035] For the purpose of clearly illustrating the technical features of the present application, the present application will be described in detail below with the specific embodiments and in conjunction with the accompanying drawings. The disclosure below provides many different embodiments or examples for implementing the different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings being discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present application omits the description of known components and processing techniques and processes to avoid unnecessary limitations on the present application. The orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] Embodiment one:

[0037] Please refer to Figures 1-12 In the present embodiment, in order to solve the problem that the existing clamping jaw cannot adjust the angle of the clamping jaw according to the different cavity surfaces of the aluminum profile 500 during clamping the aluminum profile 500, a rotating quick-change mechanical clamping jaw is proposed, which comprises a clamping jaw assembly 100, a mechanical arm 200, a rotating assembly 300 and a driving assembly 400.

[0038] The claw assembly 100 comprises a claw base 110, one side of which protrudes outward to form a fixed rod 120, and the other side of which is slidingly connected to a pull rod 130, one end of the pull rod 130 is rotatably connected to one end of a connecting plate 140, and the other end of the pull rod 130 is connected to a top rod 210; the claw base 110 is provided with a mounting hole 111, a linear bearing 112 is connected in the mounting hole 111, and the pull rod 130 can slide in the linear bearing 112. The other end of the connecting plate 140 is rotatably connected to a movable rod 150, the middle part of the movable rod 150 is rotatably connected to one end of a support plate 160, and the other end of the support plate 160 is fixedly connected to the middle part of the fixed rod 120; a clamping space 170 is formed between the end part of the fixed rod 120 and the end part of the movable rod 150.

[0039] The mechanical arm 200 comprises a sleeve 220, the top rod 210 is slidingly connected in the sleeve 220; the sleeve 220 is connected to a circular pipe joint 230 at two ends, the top rod 210 extends out of the circular pipe joint 230 at two ends, the claw base 110 of the claw assembly 100 is fixed on the circular pipe joint 230 at one end, and the circular pipe joint 230 at the other end is connected to a rotating assembly 300, the rotating assembly 300 can drive the sleeve 220 and the claw assembly 100 to rotate; the end part of the top rod 210 is connected to a driving assembly 400, and the driving assembly 400 can drive the top rod 210 to move axially.

[0040] In the embodiment, a first connecting hole 132 is formed in one end of the pull rod 130, a rotating shaft 141 is connected in the first connecting hole 132, a second connecting hole 143 is formed in the end part of the connecting plate 140, an installation groove 142 is further formed in the middle part of the connecting plate 140, the second connecting hole 143 vertically penetrates the installation groove 142, the end part of the pull rod 130 can extend into the installation groove 142, and the two ends of the rotating shaft 141 penetrate the second connecting hole 143; a clamping groove 131 is formed in the other end of the pull rod 130, a clamping block 211 is formed in the end part of the top rod 210, and the clamping block 211 is inserted into the clamping groove 131 to connect the pull rod 130 and the top rod 210.

[0041] The driving assembly 400 in the embodiment comprises a cylinder base 410, a cylinder 420 is fixedly connected to the cylinder base 410, and the top rod 210 is connected to the telescopic end of the cylinder 420; a plurality of fixing holes 411 for fixing the mechanical claw are formed in the cylinder base 410. In the embodiment, threads are formed in the end part of the top rod 210 and the telescopic end of the cylinder 420, and the top rod 210 and the telescopic end of the cylinder 420 are connected through a connecting nut 430.

[0042] The rotating assembly 300 in the embodiment comprises a motor base 320 fixed on the cylinder base 410, a rotating motor 310 fixedly connected on the motor base 320, and a first pulley 330 connected with an output shaft of the rotating motor 310; a pulley shaft 360 is sleeved on the top rod 210, and the pulley shaft 360 is connected with a round pipe joint 230 at one end of the sleeve 220; in the embodiment, the cylinder base 410 is sleeved on the pulley shaft 360 at the bottom, and the cylinder base 410 is provided with needle and thrust ball bearings 412 at both ends of the bottom to reduce the friction between the cylinder base 410 and the pulley shaft 360; a second pulley 340 is sleeved on the pulley shaft 360, the pulley shaft 360 can rotate with the second pulley 340, and the first pulley 330 and the second pulley 340 are connected through a synchronous belt 350.

[0043] In the embodiment, a first key groove 341 is formed in the inner side of the second pulley 340, a second key groove 361 is formed on the outer wall of the pulley shaft 360, and a connecting key 342 is inserted in the first key groove 341 and the second key groove 361 to achieve the sliding connection between the second pulley 340 and the pulley shaft 360.

[0044] Method for use:

[0045] 1. The telescopic end of the cylinder 420 drives the top rod 210 to move towards the cylinder 420, so that the fixed rod 120 and the movable rod 150 of the jaw assembly 100 are parallel, and at this time, the jaw assembly 100 is in a relaxed state;

[0046] 2. Start the rotating motor 310, the rotating motor 310 drives the first pulley 330 to rotate, the first pulley 330 drives the second pulley 340 to rotate through the synchronous belt 350, the second pulley 340 drives the pulley shaft 360 and the top rod 210 to rotate, and the top rod 210 drives the jaw assembly 100 to rotate;

[0047] 3. After the cavity surface of the aluminum profile 500 is aligned with the clamping space 170 between the fixed rod 120 and the movable rod 150, start the cylinder 420 to drive the top rod 210 to move forward, and the movable rod 150 continuously clamps the aluminum profile 500 under the movement of the pull rod 130, so as to complete the clamping of the aluminum profile 500.

[0048] Embodiment two:

[0049] Continue to refer to Figures 1-12In the embodiment, other parts are the same as those in the first embodiment, and the difference is that a through hole 121 is formed on the support plate 160, a contact boss 122 is slidably connected in the through hole 121, the contact boss 122 is connected with a proximity sensor 123, the proximity sensor 123 is electrically connected with the magnetic connector cathode 113, the corresponding pipe joint 230 is provided with a magnetic connector anode 231, the magnetic connector anode 231 is electrically connected with a corresponding control terminal. When clamping, after the contact boss 122 is pushed by the aluminum profile 500, the proximity sensor 123 transmits an electric signal to the control terminal, and the control terminal can start the air cylinder 420 to realize clamping, thereby realizing self-clamping.

[0050] In addition, a tapered tip 124 is formed at the end of the fixing rod 120, which can penetrate the profile with filling, and a groove 151 with increased friction is formed at the end of the movable plate to facilitate clamping, so that the clamping is more stable.

[0051] Although the specific embodiments of the utility model are described in combination with the drawings, the description is not a limitation on the protection scope of the utility model, and various modifications or changes made by those skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A rotary quick-change mechanical gripper, characterized in that: It includes a gripper assembly (100), a robotic arm (200), a rotating assembly (300), and a drive assembly (400). The gripper assembly (100) includes a gripper seat (110), one side of which protrudes outward to form a fixed rod (120), and the other side of which is slidably connected to a pull rod (130). One end of the pull rod (130) is rotatably connected to one end of a connecting plate (140), and the other end of the pull rod (130) is connected to a top rod (210). The other end of the connecting plate (140) is rotatably connected to a movable rod (150), and the middle part of the movable rod (150) is rotatably connected to one end of a support plate (160). The other end of the support plate (160) is fixedly connected to the middle part of the fixed rod (120). A clamping space (170) is formed between the end of the fixed rod (120) and the end of the movable rod (150). The robotic arm (200) includes a sleeve (220) with a push rod (210) slidably connected inside the sleeve (220); the two ends of the sleeve (220) are respectively connected to round pipe joints (230), and the push rod (210) extends out of the round pipe joints (230) at both ends; the claw seat (110) of the gripper assembly (100) is fixed on the round pipe joint (230) at one end, and the round pipe joint (230) at the other end is connected to a rotating assembly (300); the rotating assembly (300) can drive the sleeve (220) and the gripper assembly (100) to rotate; the end of the push rod (210) is connected to a drive assembly (400), and the drive assembly (400) can drive the push rod (210) to move axially.

2. The rotary quick-change mechanical gripper according to claim 1, characterized in that: The drive assembly (400) includes a cylinder seat (410), on which a cylinder (420) is fixedly connected, and a push rod (210) is connected to the telescopic end of the cylinder (420); the cylinder seat (410) has several fixing holes (411) for fixing the rotating quick-change mechanical gripper.

3. The rotary quick-change mechanical gripper according to claim 2, characterized in that: The rotating assembly (300) includes a motor mount (320), which is fixed on a cylinder mount (410). A rotary motor (310) is fixedly connected to the motor mount (320), and the output shaft of the rotary motor (310) is connected to a first pulley (330). A pulley shaft (360) is sleeved on the push rod (210), and the pulley shaft (360) is connected to a round pipe joint (230) at one end of the sleeve (220). A second pulley (340) is sleeved on the pulley shaft (360), and the pulley shaft (360) can rotate with the second pulley (340). The first pulley (330) and the second pulley (340) are connected by a synchronous belt (350).

4. A rotary quick-change mechanical gripper according to claim 3, characterized in that: The bottom of the cylinder seat (410) is fitted onto the pulley shaft (360), and the bottom ends of the cylinder seat (410) are provided with needle rollers and thrust ball bearings (412) to reduce the friction between the cylinder seat (410) and the pulley shaft (360).

5. A rotary quick-change mechanical gripper according to claim 3, characterized in that: A first keyway (341) is provided on the inner side of the second pulley (340), and a second keyway (361) is provided on the outer wall of the corresponding pulley shaft (360). A connecting key (342) is inserted in the first keyway (341) and the second keyway (361) to realize the sliding connection between the second pulley (340) and the pulley shaft (360).

6. A rotary quick-change mechanical gripper according to claim 1, characterized in that: A through hole (121) is provided on the support plate (160). A contact boss (122) is slidably connected in the through hole (121). The contact boss (122) is connected to a proximity sensor (123). The proximity sensor (123) is electrically connected to the cathode of the magnetic connector (113). A magnetic connector anode (231) is provided on the corresponding round tube connector (230). The magnetic connector anode (231) is electrically connected to the corresponding control terminal.

7. A rotary quick-change mechanical gripper according to claim 1, characterized in that: A mounting hole (111) is provided on the claw seat (110), and a linear bearing (112) is connected inside the mounting hole (111). The pull rod (130) can slide inside the linear bearing (112).

8. A rotary quick-change mechanical gripper according to claim 1, characterized in that: A first connecting hole (132) is opened at one end of the pull rod (130), and a rotating shaft (141) is connected inside the first connecting hole (132). A second connecting hole (143) is opened at the end of the connecting plate (140). An installation groove (142) is also opened in the middle of the connecting plate (140). The second connecting hole (143) passes vertically through the installation groove (142). The end of the pull rod (130) can extend into the installation groove (142), so that both ends of the rotating shaft (141) pass through the second connecting hole (143). A slot (131) is opened at the other end of the pull rod (130), and a locking block (211) is opened at the end of the top rod (210). The locking block (211) is inserted into the slot (131) to realize the connection between the pull rod (130) and the top rod (210).

9. A rotary quick-change mechanical gripper according to claim 2, characterized in that: A tapered tip (124) is provided at the end of the fixed rod (120), and a groove (151) for increasing friction is provided at the end of the movable plate facing the tapered tip (124).

10. A rotary quick-change mechanical gripper according to claim 2, characterized in that: The ends of the push rod (210) and the telescopic ends of the cylinder (420) are threaded, and the push rod (210) and the telescopic ends of the cylinder (420) are connected by a connecting nut (430).

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