Multifunctional clamp device of drawing measuring instrument

Abstract

The multifunctional clamp device of the drawing measuring instrument comprises an instrument body and a clamping seat, the lower end of the instrument body is fixedly connected with a chuck, a clamping groove is formed in the end face of the clamping seat, the chuck is clamped in the clamping groove, the end of an inserting rod abuts against the inner wall of an outer groove of the chuck, and the lower end of the clamping seat is fixedly connected with an air cylinder. A first piston is connected into the air cylinder in a sliding mode, and a driving assembly for driving the first piston to slide is installed in the air cylinder. Pneumatic control is adopted, the sliding block is driven to accurately slide along the threaded rod, air in the air cylinder is injected into the sliding groove, then the second piston is pushed to slide, the second piston pushes the chuck inwards through the insertion rod, it is ensured that the chuck firmly clamps an instrument body, screws do not need to be tightened one by one, operation steps are greatly reduced, and installation efficiency is remarkably improved. And meanwhile, the pneumatic system can accurately control the clamping force, and errors caused by uneven force in a traditional screw clamping mode are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, especially drawing measuring instrument's multifunctional fixture device. BACKGROUND

[0002] Drawing measuring instrument's multifunctional fixture device is usually a fixture system for supporting, fixing and adjusting measuring instruments, drawing tools or other equipment.

[0003] In the prior art, when the drawing measuring instrument is installed on the support, it is mostly installed by the way of multi-group screw clamping positioning, but this clamping mode has certain defects in actual use, for example, multiple sets of screws are mostly used in clamping, and multiple sets of screws need to be tightened one by one, which increases the operation time and steps, and the tightening force of the screws is difficult to control uniformly, which may cause slight position deviation in the clamping process and affect the measuring accuracy of the instrument, so the multifunctional fixture device for drawing measuring instrument is needed to be proposed for the above problems. SUMMARY

[0004] The utility model discloses a multifunctional fixture device for drawing measuring instrument which is proposed to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The multifunctional fixture device for drawing measuring instrument comprises an instrument body and a clamping seat, the lower end of the instrument body is fixedly connected with a chuck, a clamping groove is formed in the end face of the clamping seat, and the chuck is clamped in the clamping groove, a plurality of slide grooves are formed in the clamping seat, the slide grooves are symmetrically arranged in pairs, and one end of each slide groove extends into the clamping groove, a piston two is slidably connected in each slide groove, an insertion rod is fixedly connected to one end of the piston two, the end of the insertion rod abuts against the inner wall of the outer groove of the chuck, a gas cylinder is fixedly connected to the lower end of the clamping seat, two groups of air pipes are mounted on the outer wall of the gas cylinder, the air pipes are respectively communicated with the inner parts of the slide grooves on the left and right sides, a piston one is slidably connected in the gas cylinder, and a driving assembly for driving the piston one to slide is mounted in the gas cylinder.

[0007] Preferably, the driving assembly comprises a sliding block slidably connected in the gas cylinder, two groups of connecting rods are fixedly connected to the outer wall of the sliding block, and the ends of the connecting rods are fixedly connected with the piston one.

[0008] Preferably, a threaded rod is rotatably connected to the inner wall of the gas cylinder, the sliding block is threadedly connected to the threaded segment of the threaded rod, and the outer walls on the left and right sides of the sliding block are in contact with the inner wall of the gas cylinder.

[0009] Preferably, the outer walls on the left and right sides of the chuck are fixedly connected with an adapter plate, and screws are threadedly connected to the two ends of the adapter plate.

[0010] Preferably, a limiting ring is fixedly connected at the chute notch, an inner diameter of the limiting ring is smaller than a radius of the piston two, and an inner wall of the chute is circular.

[0011] Preferably, a rotating block is rotationally connected to an outer wall of the air cylinder, the rotating block is coaxially fixedly connected with a threaded rod, and a limiting block is fixedly connected to an end of the threaded rod.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model discloses a pneumatic control, which drives the sliding block to slide along the threaded rod accurately, injects the air in the air cylinder into the chute, and drives the piston two to slide, so that the piston two drives the chuck inward through the inserting rod, ensures that the chuck clamps the instrument body firmly, does not need to tighten the screw one by one, greatly reduces the operation steps, and significantly improves the installation efficiency.

[0014] 2. The utility model discloses a limiting ring and other devices, the inner diameter of the limiting ring is smaller than the radius of the piston two, so that the sliding range of the piston two in the chute is effectively limited, the piston two is prevented from sliding excessively, and the stability of the clamping device is ensured. DRAWINGS

[0015] Figure 1 The utility model provides a multifunctional clamp device of a drawing measuring instrument.

[0016] Figure 2 The utility model discloses a multifunctional clamp device of a drawing measuring instrument. Figure 1 The utility model discloses a multifunctional clamp device of a drawing measuring instrument.

[0017] Figure 3 The utility model discloses a multifunctional clamp device of a drawing measuring instrument. Figure 1 The utility model discloses a multifunctional clamp device of a drawing measuring instrument.

[0018] Figure 4 The utility model discloses a multifunctional clamp device of a drawing measuring instrument. Figure 2 The utility model discloses a multifunctional clamp device of a drawing measuring instrument.

[0019] Figure 5 The utility model discloses a multifunctional clamp device of a drawing measuring instrument. Figure 3 The utility model discloses a multifunctional clamp device of a drawing measuring instrument.

[0020] In the drawings: 1, instrument body;2, chuck;3, chuck;4, adapter plate;5, air cylinder;6, threaded rod;7, piston one;8, sliding block;9, connecting rod;10, limiting block;11, rotating block;12, air pipe;13, chute;14, piston two;15, inserting rod;16, limiting ring. DETAILED DESCRIPTION

[0021] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments.

[0022] With reference to Figures 1-5 The multifunctional clamp device of the drawing measuring instrument comprises an instrument body 1, a clamping seat 2, a chuck 3 fixedly connected to the lower end of the instrument body 1, a clamping groove formed in the end face of the clamping seat 2, the chuck 3 clamped in the clamping groove, a plurality of slide grooves 13 formed in the clamping seat 2, the plurality of slide grooves 13 symmetrically arranged in pairs and extending into the clamping groove at one end, a piston II 14 slidably connected in each of the slide grooves 13, a plug rod 15 fixedly connected to one end of each of the pistons II 14, the end of the plug rod 15 abutting against the inner wall of the outer groove of the chuck 3, an air cylinder 5 fixedly connected to the lower end of the clamping seat 2, two groups of air pipes 12 mounted on the outer wall of the air cylinder 5, the two groups of air pipes 12 respectively communicating with the interiors of the slide grooves 13 on the two sides, a piston I 7 slidably connected in the air cylinder 5, and a driving assembly installed in the air cylinder 5 and driving the piston I 7 to slide.

[0023] Specifically, the air in the air cylinder 5 can be injected into the plurality of slide grooves 13 by means of the sliding of the piston I 7, so as to drive the plurality of pistons II 14 and the plug rods 15 on the outer walls of the plurality of pistons II 14 to slide synchronously until sliding into the groove outside the chuck 3, thereby realizing the rapid clamping and fixing of the chuck 3 and the instrument body 1 on the upper end of the chuck 3. Compared with the traditional screw fixing mode, the installation efficiency is greatly improved, and the operation steps are reduced. The pneumatic mode is controlled by air pressure, which avoids the errors that may exist in the process of manually tightening the screw, thereby improving the stability and reliability of clamping and reducing the influence of human factors on the measurement accuracy. It should be noted that the connecting plate 4 is arranged to act on the component connected to the external support frame.

[0024] The driving assembly comprises a sliding block 8 slidably connected in the air cylinder 5, two groups of connecting rods 9 fixedly connected to the outer wall of the sliding block 8, the end portions of the two groups of connecting rods 9 fixedly connected to the piston I 7, a threaded rod 6 rotatably connected to the inner wall of the air cylinder 5, the sliding block 8 threadedly connected to the threaded segment of the threaded rod 6, the outer walls on the two sides of the sliding block 8 in abutting contact with the inner wall of the air cylinder 5, the connecting plate 4 fixedly connected to the outer walls on the two sides of the chuck 3, the screws threadedly connected to the two ends of the connecting plate 4, the limit ring 16 fixedly connected to the slot opening of the slide groove 13, the inner diameter of the limit ring 16 smaller than the radius of the piston II 14, the inner wall of the slide groove 13 in a circular shape, the rotating block 11 rotatably connected to the outer wall of the air cylinder 5, the rotating block 11 coaxially fixedly connected to the threaded rod 6, and the limit block 10 fixedly connected to the end portion of the threaded rod 6.

[0025] The inner diameter of the limit ring 16 is smaller than the radius of the piston II 14, which can effectively prevent the piston II from exceeding the range of the slide groove 13 and ensure that the clamp device can maintain a consistent working range and clamping position in each operation.

[0026] The utility model discloses a device, the device is used when: first, the instrument body 1 of drawing surveying instrument is fixedly connected to chuck 3 through its lower end, and the chuck 3 is matched with the clamping groove in the card seat 2, and the installation of the fixture device is primarily completed.

[0027] Subsequently through the mode of rotating the rotating block 11, drive screw rod 6 rotation, in turn drive sliding block 8 and drive piston one 7 slide in the air cylinder 5, and the sliding of piston one 7 drive the flow of air in the air cylinder 5, and through the air pipe 12 delivery to the sliding chute 13 in. Further push piston two 14 synchronous sliding in the sliding chute 13. Piston two 14 drive the slide bar 15 to slide into the recess outside chuck 3. The end of slide bar 15 and the inner wall of the recess of chuck 3 abut, ensure that chuck 3 firmly clamps instrument body 1. At this time, the clamping force between chuck 3 and card seat 2 is accurately controlled through the pneumatic system, which ensures the stability and precision of the clamping process.

[0028] In the clamping process, the limiting ring 16 plays an important protective role. When piston two 14 slides to a certain position, the limiting ring 16 will limit the further sliding of piston two 14, ensuring that piston two 14 will not exceed the working range of the sliding chute 13.

[0029] In the whole working process, the air cylinder 5 realizes accurate adjustment of the clamping force through air pressure control, avoiding the errors that may occur in the traditional screw clamping mode. This pneumatic clamping mode can generate uniform clamping force during clamping, ensuring that the fixed position of the instrument body 1 on the chuck 3 does not shift, avoiding the loss of measurement accuracy caused by improper operation or manual tightening of the screw.

[0030] When the fixture needs to be disassembled or adjusted, only the rotating block 11 is reversed, drive screw rod 6 drives piston one 7 to reset, so that the sliding block 8 and piston two 14 loosen the chuck 3, completing the unclamping and removal of the instrument body 1. The pneumatic clamping mode is more convenient and efficient than the traditional screw clamping mode, avoiding the tedious manual adjustment and adjustment steps.

[0031] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A multifunctional fixture device for a drawing and measuring instrument, comprising an instrument body (1) and a holder (2), characterized in that: The lower end of the instrument body (1) is fixedly connected with a chuck (3), a slot is provided at the end surface of the chuck (2), and the chuck (3) is clamped in the slot, and multiple groups of slide grooves (13) are provided in the chuck (2), and the multiple groups of slide grooves (13) are symmetrically arranged in pairs, and one end of each group extends into the slot, and the slide grooves (13) are slidably connected with piston two (14), and one end of each group of piston two (14) is fixedly connected with an insertion rod (15), and the end of the insertion rod (15) is against the inner wall of the outer groove of the chuck (3), and the lower end of the chuck (2) is fixedly connected with an air cylinder (5), and two groups of air pipes (12) are installed on the outer wall of the air cylinder (5), and the two groups of air pipes (12) are respectively communicated with the inside of the slide grooves (13) on both sides, and the air cylinder (5) is slidably connected with piston one (7), and the air cylinder (5) is installed with a driving component for driving piston one (7) to slide.

2. The multifunctional fixture device for a drawing and measuring instrument according to claim 1, characterized in that: The driving assembly comprises a slider (8) slidably connected in the air cylinder (5), and the outer wall of the slider (8) is fixedly connected with two groups of connecting rods (9), and the ends of the two groups of connecting rods (9) are fixedly connected to piston one (7).

3. The multifunctional fixture device of the drawing and measuring instrument according to claim 2, characterized in that: The inner wall of the gas cylinder (5) is rotatably connected to a threaded rod (6), the slider (8) is threadedly connected to the threaded section of the threaded rod (6), and the outer walls on both sides of the slider (8) are in close contact with the inner wall of the gas cylinder (5).

4. The multifunctional fixture device for a drawing and measuring instrument according to claim 3, characterized in that: The outer walls on both sides of the chuck (3) are fixedly connected with connecting plates (4), and both ends of the connecting plates (4) are threadedly connected with screws.

5. The multifunctional fixture device for a drawing and measuring instrument according to claim 4, characterized in that: A limiting ring (16) is fixedly connected to the notch of the slide groove (13), the inner diameter of the limiting ring (16) is smaller than the radius of the second piston (14), and the inner wall of the slide groove (13) is circular.

6. The multifunctional fixture device for a drawing and measuring instrument according to claim 5, characterized in that: The outer wall of the air cylinder (5) is rotatably connected to a rotating block (11), the rotating block (11) is coaxially fixedly connected to the threaded rod (6), and the end of the threaded rod (6) is fixedly connected to a limiting block (10).

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