Diameter-variable precise inner support clamping hand mechanism

Abstract

The utility model relates to the technical field of inner supporting clamping jaws, and discloses a variable-diameter precise inner supporting clamping jaw mechanism which comprises a connecting plate, a clamping jaw mechanism is arranged on the right side of the connecting plate, a mounting plate is arranged on the left side of the connecting plate, a mounting assembly is arranged in the mounting plate, and the clamping jaw mechanism comprises a supporting frame. The supporting frame is fixedly connected to the right side of the connecting plate, a moving rod is slidably connected to the right side of the supporting frame, a plurality of first connecting rods are rotatably connected to the periphery of the right end of the moving rod, clamping jaw supporting pieces are rotatably connected to the other ends of the first connecting rods, and a connecting frame is fixedly connected to the right side of the supporting frame. And a plurality of limiting frames are fixedly connected to the right side of the connecting frame. In the utility model, the clamping cylinder is started to drive the clamping jaw support sheet to expand and support the inner ring of the product, and the inner ring support range can reach phi 110-phi 240, so that the clamping requirements of products with different inner diameters can be met, and the universality of the clamping jaw is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of inner support clamping jaw, especially to a variable-diameter precision inner support clamping hand mechanism. BACKGROUND

[0002] In modern industrial production, inner support clamping jaw, as a key clamping tool, is widely used in various automatic production links. It is mainly used for stable clamping of inner hole workpieces, so as to accurately operate the workpieces in machining, handling, assembly and other processes.

[0003] The existing inner support clamping jaw is usually composed of a fixed base, a driving device, a transmission mechanism and a clamping jaw component. When compressed air is input into the cylinder, the cylinder piston produces linear motion, and the linear motion of the piston is transmitted to the clamping jaw through connecting rods and other transmission components, so that the clamping jaw is opened or closed.

[0004] The existing inner support clamping jaw can well complete the clamping of products of specific sizes, but there is still some deficiency in the clamping range. For different sizes of products, the existing clamping jaw needs to be frequently replaced, thereby reducing production efficiency and increasing cost. Therefore, a variable-diameter precision inner support clamping hand mechanism is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above deficiencies, the utility model provides a variable-diameter precision inner support clamping hand mechanism, aiming at improving the problem that in the prior art, for different sizes of products, the existing clamping jaw needs to be frequently replaced, thereby reducing production efficiency and increasing cost.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A variable-diameter precision inner support clamping hand mechanism, comprising a connecting plate, a clamping jaw mechanism is arranged on the right side of the connecting plate, an installation plate is arranged on the left side of the connecting plate, and an installation assembly is arranged in the installation plate;

[0008] The clamping jaw mechanism comprises a support frame, the support frame is fixedly connected to the right side of the connecting plate, a moving rod is slidably connected to the right side of the support frame, a plurality of connecting rods one are rotatably connected to the outer periphery of the right end of the moving rod, a clamping jaw support piece is rotatably connected to the other end of each of the plurality of connecting rods one, a connecting frame is fixedly connected to the right side of the support frame, a plurality of limiting frames are fixedly connected to the right side of the connecting frame, a connecting rod two is rotatably connected to the inside of each of the plurality of limiting frames, and the other end of each of the plurality of clamping jaw support pieces is rotatably connected to the connecting rod two;

[0009] As a further description of the above technical scheme:

[0010] The mounting assembly comprises two pressing rods, both of which are slidingly connected inside the mounting plate, both outer circumferences of the two pressing rods are fixedly connected with two connecting blocks, multiple connecting rods three are rotatably connected inside the multiple connecting blocks, multiple sliding racks are rotatably connected to the other ends of the multiple connecting rods three, multiple sliding rods are fixedly connected to the ends of the multiple sliding racks away from the connecting rods three, two fixed rods are fixedly connected inside the mounting plate, both of the two pressing rods are slidingly connected to the outer circumferences of the two fixed rods, and both outer circumferences of the two fixed rods are sleeved with springs;

[0011] As a further description of the above technical solutions:

[0012] Both outer circumferences of the two pressing rods are fixedly connected with two connecting blocks, multiple connecting rods three are rotatably connected inside the multiple connecting blocks, multiple sliding racks are rotatably connected to the other ends of the multiple connecting rods three, multiple sliding rods are fixedly connected to the ends of the multiple sliding racks away from the connecting rods three, two fixed rods are fixedly connected inside the mounting plate, both of the two pressing rods are slidingly connected to the outer circumferences of the two fixed rods, and both outer circumferences of the two fixed rods are sleeved with springs;

[0013] As a further description of the above technical solutions:

[0014] The driving assembly comprises a clamping air cylinder, the clamping air cylinder is installed on the right side of the connecting plate, and the output end of the clamping air cylinder is installed on the left side of the moving rod.

[0015] As a further description of the above technical solutions:

[0016] Multiple connecting rods one are rotatably connected to the middle parts of multiple connecting rods two.

[0017] As a further description of the above technical solutions:

[0018] Multiple sliding rods are slidingly connected inside multiple sliding rods.

[0019] As a further description of the above technical solutions:

[0020] Both outer circumferences of the two pressing rods are fixedly connected with two connecting blocks, multiple connecting rods three are rotatably connected inside the multiple connecting blocks, multiple sliding racks are rotatably connected to the other ends of the multiple connecting rods three, multiple sliding rods are fixedly connected to the ends of the multiple sliding racks away from the connecting rods three, two fixed rods are fixedly connected inside the mounting plate, both of the two pressing rods are slidingly connected to the outer circumferences of the two fixed rods, and both outer circumferences of the two fixed rods are sleeved with springs;

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1. The utility model discloses a variable diameter precision inner support clamp hand tool structure, through the cooperation between connecting plate, clamping pneumatic cylinder, moving link, connecting rod no. 1, clamping jaw support piece, connecting frame, limiting frame, connecting rod no. 2, when clamping pneumatic cylinder pushes out, moving link is pushed and moves to left, and moving link drives connecting rod no. 1 to rotate, and connecting rod no. 1 drives clamping jaw support piece to rotate around connecting rod no. 2, makes clamping jaw support piece contract, when clamping pneumatic cylinder draws back, moving link moves to right, and drives clamping jaw support piece to expand and prop up product inner ring, and the prop up inner ring range can reach phi 110 to phi 240, can satisfy the clamping demand of different inner diameter size products, improved the versatility of clamping jaw.

[0023] 2. The utility model discloses a variable diameter precision inner support clamp hand tool structure, through the cooperation between mounting plate, press down link, connecting block, connecting rod no. 3, sliding frame, sliding link, bolt, slot, slide bar, fixed link, spring, press down two press down links, and press down link moves towards each other and compresses spring, and drives connecting block to move, and connecting block makes connecting rod no. 3 rotate, and connecting rod no. 3 drives sliding frame to move, and sliding frame drives sliding link to slide on slide bar and separate the joint of bolt, at this moment can separate mounting plate and connecting plate, and the clamping jaw is installed, disassembled and maintained, simple and convenient operation improves the maintainability of equipment. DRAWINGS

[0024] Figure 1 It is the three-dimensional schematic view of the variable diameter precision inner support clamp hand tool structure that the utility model proposes;

[0025] Figure 2 It is the structure schematic view of the clamping jaw support piece of the variable diameter precision inner support clamp hand tool structure that the utility model proposes;

[0026] Figure 3 It is the structure schematic view of the bolt of the variable diameter precision inner support clamp hand tool structure that the utility model proposes;

[0027] Figure 4 It is the structure schematic view of the mounting plate of the variable diameter precision inner support clamp hand tool structure that the utility model proposes.

[0028] LEGEND:

[0029] 1, connecting plate, 2, support frame, 3, clamping pneumatic cylinder, 4, moving link, 5, connecting rod no. 1, 6, clamping jaw support piece, 7, connecting frame, 8, limiting frame, 9, connecting rod no. 2, 10, mounting plate, 11, bolt, 12, slot, 13, press down link, 14, connecting block, 15, connecting rod no. 3, 16, sliding frame, 17, sliding link, 18, slide bar, 19, fixed link, 20, spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0031] With reference to Figures 1-4 The utility model provides an embodiment: a variable diameter precision inner support clamp mechanism, including the connecting plate 1, the connecting plate 1 right side is provided with the jaw mechanism, the connecting plate 1 left side is provided with the mounting plate 10, the mounting plate 10 inside is provided with the installation component.

[0032] Specifically, the connecting plate 1 plays the role of connecting the jaw mechanism and the robot or the cantilever, the jaw mechanism is responsible for realizing the clamping function to the product, the mounting plate 10 is used for installing and fixing the jaw mechanism, and the installation and dismounting of the whole jaw are convenient.

[0033] With reference to Figures 1-2 The jaw mechanism includes the support frame 2, the support frame 2 is fixedly connected at the connecting plate 1 right side, the support frame 2 right side is slidably connected with the moving rod 4, the moving rod 4 right end outer periphery is rotatably connected with a plurality of connecting rods one 5, a plurality of connecting rods one 5 another end is rotatably connected with the jaw support piece 6, the support frame 2 right side is fixedly connected with the connecting frame 7, the connecting frame 7 right side is fixedly connected with a plurality of limit frames 8, a plurality of limit frames 8 interiors are rotatably connected with the connecting rod two 9, a plurality of jaw support pieces 6 are rotatably connected at the other end of a plurality of connecting rod two 9 respectively, the connecting plate 1 right side is provided with the drive component, and the drive component includes the clamping cylinder 3, the clamping cylinder 3 is installed at the connecting plate 1 right side, the clamping cylinder 3 output end right side is installed at the moving rod 4 left side, and a plurality of connecting rods one 5 are rotatably connected in the middle part of a plurality of connecting rod two 9 respectively.

[0034] Specifically, the moving rod 4 slides on the support frame 2, the movement drives the connecting rod one 5 to rotate, and then controls the opening and closing of the jaw support piece 6, the connecting rod one 5 is used as a transmission component, converts the linear motion of the moving rod 4 into the rotary motion of the jaw support piece 6, the jaw support piece 6 is directly contacted with the product and realizes the clamping component, and the inner ring of the product is supported or loosened through the opening and closing action, the connecting frame 7 and the limit frame 8 are used for installing and fixing the connecting rod two 9, and simultaneously play the limiting role to the movement of the jaw support piece 6, guarantee that the jaw support piece 6 moves within the specified range, make the clamping action more accurate, the clamping cylinder 3 provides power for the moving rod 4 through the telescopic motion of the output end, realizes the clamping and loosening action of the jaw.

[0035] With reference to Figures 3-4The mounting assembly comprises two pressing rods 13, the two pressing rods 13 are both slidingly connected inside the mounting plate 10, two connecting blocks 14 are fixedly connected to the outer periphery of the two pressing rods 13, a plurality of connecting rods three 15 are rotatably connected inside the connecting blocks 14, a plurality of sliding frames 16 are rotatably connected to the other ends of the connecting rods three 15, a plurality of sliding rods 17 are fixedly connected to the ends, away from the connecting rods three 15, of the plurality of sliding frames 16, two fixed rods 19 are fixedly connected inside the mounting plate 10, the two pressing rods 13 are slidingly connected to the outer periphery of the two fixed rods 19 respectively, springs 20 are sleeved to the outer periphery of the two fixed rods 19 respectively, two bolts 11 are fixedly connected to the left side of the connecting plate 1, two insertion grooves 12 are formed in the right side of the mounting plate 10, the two bolts 11 are located inside the two insertion grooves 12 respectively, the two sliding rods 17 are clamped inside the connecting rods three 15 respectively, a plurality of sliding rods 18 are fixedly connected inside the mounting plate 10, the plurality of sliding rods 17 are slidingly connected inside the plurality of sliding rods 18 respectively, the opposite sides of the two springs 20 are fixedly connected inside the mounting plate 10 respectively, and the opposite sides of the two springs 20 are fixedly connected to the opposite sides of the two pressing rods 13 respectively.

[0036] Specifically, the pressing rod 13 slides inside the mounting plate 10, the connecting block 14 transmits the movement of the pressing rod 13 to the connecting rod three 15, so that the connecting rod three 15 rotates, the connecting rod three 15 acts as a transmission lever and drives the sliding frame 16 to move, the sliding frame 16 drives the sliding rod 17 to move, the sliding rod 17 cooperates with the bolt 11 to realize the connection and separation of the mounting plate 10 and the connecting plate 1, the fixed rod 19 guides and limits the movement of the pressing rod 13, so that the pressing rod 13 slides along the specified direction, the spring 20 provides elastic force, when the pressing rod 13 is pressed, the spring 20 is compressed, when the pressing rod 13 is released, the elastic force of the spring 20 makes the pressing rod 13 reset, the bolt 11 and the insertion groove 12 cooperate with each other to realize the preliminary positioning of the mounting plate 10 and the connecting plate 1, the sliding rod 17 is clamped inside the connecting rod three 15 to further fix the connection state of the mounting plate 10 and the connecting plate 1. The sliding rod 18 provides guidance for the movement of the sliding rod 17 to ensure that the movement of the sliding rod 17 is stable and accurate.

[0037] Working principle: when the product needs to be clamped, the clamping cylinder 3 is started, the output end of the clamping cylinder 3 is pushed out, and the moving rod 4 moves to the left. The moving rod 4 slides on the support frame 2, and the movement to the left drives the plurality of connecting rods one 5 rotatably connected to the outer periphery of the right end to rotate, when the connecting rods one 5 rotate, the clamping jaw support piece 6 is driven to rotate around the connecting rod two 9, so that the clamping jaw support piece 6 shrinks. At this time, the clamping jaw mechanism can be moved to the inner ring position of the product, then the output end of the clamping cylinder 3 is pulled back, the moving rod 4 moves to the right, drives the connecting rod one 5 to rotate again, and makes the clamping jaw support piece 6 expand and support the inner ring of the product, and the supporting range of the inner ring can reach φ110-φ240, realizing stable clamping of products with different inner diameters, meeting the processing needs of various products.

[0038] When the clamping jaw needs to be installed, disassembled or maintained, the two pressing rods 13 are pressed, the pressing rods 13 slide towards each other inside the mounting plate 10, the connecting blocks 14 fixed on the outer periphery of the pressing rods 13 move, the connecting rod three 15 is driven to rotate by the connecting blocks 14, the connecting rod three 15 drives the sliding frame 16 to move by rotating, the sliding frame 16 drives the sliding rod 17 to slide inside the sliding rod 18, and the spring 20 is compressed by the pressing rods 13, with the movement of the sliding frame 16, the sliding rod 17 gradually separates from the latch 11, at this time, the connection between the mounting plate 10 and the connecting plate 1 is released, the mounting plate 10 and the connecting plate 1 can be separated, and the components of the clamping jaw can be conveniently operated, when the operation is completed and needs to be reinstalled, the pressing rods 13 are loosened, the pressing rods 13 are reset by the elastic force of the spring 20, the sliding rod 17 is driven to be re-latched into the latch 11, the connection between the mounting plate 10 and the connecting plate 1 is completed, and the clamping jaw can work normally, that is, the clamping jaw can be disassembled and installed without using tools.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have described, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A variable diameter precision internal strutting clamp mechanism comprising a connecting plate (1), characterized in that: The connecting plate (1) is provided with a clamping jaw mechanism on the right side, and is provided with a mounting plate (10) on the left side, and the mounting plate (10) is provided with a mounting assembly inside; The clamping jaw mechanism comprises a support frame (2) fixedly connected to the right side of the connecting plate (1), a moving rod (4) slidably connected to the right side of the support frame (2), a plurality of connecting rods (5) rotatably connected to the outer periphery of the right end of the moving rod (4), a plurality of clamping jaw support plates (6) rotatably connected to the other ends of the plurality of connecting rods (5), a connecting frame (7) fixedly connected to the right side of the support frame (2), a plurality of limiting frames (8) fixedly connected to the right side of the connecting frame (7), a plurality of connecting rods (9) rotatably connected inside the plurality of limiting frames (8), and a plurality of clamping jaw support plates (6) rotatably connected to the other ends of the plurality of connecting rods (9).

2. The variable diameter precision internal mandrel caliper tool of claim 1, wherein: The mounting assembly comprises two pressing rods (13) slidably connected inside the mounting plate (10), two connecting blocks (14) fixedly connected to the outer periphery of the two pressing rods (13), a plurality of connecting rods (15) rotatably connected inside the plurality of connecting blocks (14), a plurality of sliding frames (16) rotatably connected to the other ends of the plurality of connecting rods (15), a plurality of sliding rods (17) fixedly connected to one end of the plurality of sliding frames (16) away from the connecting rods (15), and two fixed rods (19) fixedly connected inside the mounting plate (10), two pressing rods (13) are slidably connected to the outer periphery of the two fixed rods (19), and the outer periphery of the two fixed rods (19) is sleeved with a spring (20).

3. The variable diameter precision internal mandrel caliper tool of claim 2, wherein: The left side of the connecting plate (1) is fixedly connected with two latches (11), the right side of the mounting plate (10) is provided with two insertion grooves (12), and the two latches (11) are respectively located inside the two insertion grooves (12).

4. The variable diameter precision internal mandrel caliper tool of Claim 1, wherein: The driving assembly comprises a clamping cylinder (3) installed on the right side of the connecting plate (1), and the output end of the clamping cylinder (3) is installed on the left side of the moving rod (4).

5. The variable diameter precision internal mandrel caliper tool of Claim 1, wherein: Part of the plurality of connecting rods (5) is rotatably connected to the middle part of the plurality of connecting rods (9).

6. The variable diameter precision internal mandrel caliper tool of Claim 3, wherein: The mounting plate (10) is fixedly connected with a plurality of sliding rods (18) inside, and the plurality of sliding rods (17) are slidably connected inside the plurality of sliding rods (18).

7. The variable diameter precision internal mandrel caliper tool of Claim 3, wherein: The opposite sides of the two springs (20) are fixedly connected inside the mounting plate (10), and the opposite sides of the two springs (20) are fixedly connected to the opposite sides of the two pressing rods (13).

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