Self-locking type positioning device for axes of nozzle heads of various sizes

Abstract

The utility model belongs to the technical field of mechanical clamp positioning, and particularly relates to a self-locking type positioning device for axes of nozzle heads of various sizes, which comprises a supporting table, a fixing assembly is mounted at the top of the supporting table, a detection assembly used for detecting the nozzle heads is mounted on the fixing assembly, a lifting groove is formed in one end of the fixing assembly, and a clamping groove is formed in the other end of the fixing assembly. A lifting block is installed in the lifting groove in a sliding mode, and a screw is arranged in the lifting groove. According to the utility model, the distance between the lifting block and the upper surface of the lifting groove is steplessly adjusted through the screw rod, that is, the height required in the detection process of the batch of nozzle heads is met, and the elastic arm is propped against the inner surface of the nozzle head in a manner that the elastic arm expands outwards, so that the axis of the nozzle head is positioned on the axis of the detection assembly at the moment; and when the elastic arms expand outwards and abut against the inner surfaces of the different nozzle heads, the axes of the nozzle heads are not changed all the time, detection can be conveniently conducted by the detection assembly, the nozzle heads of various sizes can be conveniently fixed, and therefore the clamping efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical fixture positioning, in particular to an axis self-locking positioning device for nozzle heads of various sizes. Background Art

[0002] It is particularly important to test whether the holes on the steam nozzle of a coffee machine are qualified after processing. The angle relationship between the holes and the angle relationship between the holes and the axis of the steam nozzle will affect the overall flow of gas. Angle deviation is likely to cause turbulence, thus affecting the density and aroma of the milk foam. Therefore, during the inspection process, a fixture is needed to fix the processed nozzle head so that it occupies the correct position for inspection. The current fixture is not convenient for fixing nozzle heads of various sizes, resulting in low clamping efficiency. Therefore, we proposed a self-locking positioning device for the axis of nozzle heads of various sizes to solve the above problem. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies of the prior art, the utility model provides an axis self-locking positioning device for nozzle heads of various sizes, which solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A self-locking positioning device for the axis of nozzle heads of various sizes comprises a support platform, a fixing component is installed on the top of the support platform, a detection component for detecting the nozzle head is installed on the fixing component, a lifting groove is opened at one end of the fixing component, a lifting block is slidably installed in the lifting groove, a screw is arranged in the lifting groove, the top end of the screw is rotatably connected with the fixing component through a C-shaped clamping ring, the lifting block is threadedly connected to the surface of the screw, a square frame is fixed on the surface of the lifting block, two worm gears are symmetrically rotatably installed in the square frame, a No. 1 arm is fixed on the surface of the two worm gears, a No. 2 arm is rotatably installed on one end of the two No. 1 arms, two No. 3 arms are symmetrically rotatably installed in the square frame, the two No. 3 arms are respectively rotatably connected with adjacent No. 2 arms, a worm is rotatably installed in the square frame, the worm is meshed with two worm wheels, a coil spring is fixedly connected to the bottom end of the worm, one end of the coil spring is fixedly connected to the surface of the square frame, and elastic arms for clamping the nozzle head are fixed on the tops of the two No. 2 arms.

[0008] Furthermore, a first adjusting handle is fixed to the bottom end of the screw rod.

[0009] Furthermore, a second adjusting handle is fixed to the bottom end of the worm.

[0010] Furthermore, a threaded hole adapted for the screw rod is provided in the middle of the lifting block.

[0011] Furthermore, a clearance opening for avoiding the second arm is provided on the surface of the fixing component.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a self-locking positioning device for the axis of nozzle heads of various sizes, which has the following beneficial effects:

[0014] The utility model uses a screw to steplessly adjust the distance between the lifting block and the upper surface of the lifting groove, that is, to meet the required height during the inspection of this batch of nozzle heads, and presses against the inner surface of the nozzle head by means of the elastic arm expanding outward, so that the axis of the nozzle head is now located on the axis of the inspection component, and when the elastic arm expands outward and presses against the inner surfaces of different nozzle heads, the axis of the nozzle head remains unchanged, which can facilitate the inspection of the inspection component. Therefore, the present application is convenient for fixing nozzle heads of various sizes, thereby improving the clamping efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the detection component of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the fixed component of the utility model;

[0018] Figure 4 This is a schematic diagram of the square frame structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the worm gear structure of the utility model.

[0020] In the figure: 1. support platform; 2. fixing assembly; 3. detection assembly; 4. lifting slot; 5. lifting block; 6. screw; 7. square frame; 8. worm gear; 9. No. 1 arm; 10. No. 2 arm; 11. No. 3 arm; 12. worm; 13. coil spring; 14. elastic arm; 15. No. 1 adjusting handle; 16. No. 2 adjusting handle; 17. C-type retaining ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example

[0023] like Figure 1-5 As shown, an embodiment of the utility model proposes a self-locking positioning device for the axis of nozzle heads of various sizes, including a support platform 1, a fixing component 2 is installed on the top of the support platform 1, a detection component 3 for detecting the nozzle head is installed on the fixing component 2, a lifting groove 4 is opened at one end of the fixing component 2, a lifting block 5 is slidably installed in the lifting groove 4, a screw 6 is arranged in the lifting groove 4, the top end of the screw 6 is rotatably connected to the fixing component 2 through a C-shaped retaining ring 17, the lifting block 5 is threadedly connected to the surface of the screw 6, a threaded hole adapted to the screw 6 is opened in the middle of the lifting block 5, and a square frame 7 is fixed on the surface of the lifting block 5. Two worm gears 8 are symmetrically rotatably installed in the square frame 7, and a No. 1 arm 9 is fixed on the surface of the two worm gears 8. A No. 2 arm 10 is rotatably installed on one end of the two No. 1 arms 9. Two No. 3 arms 11 are symmetrically rotatably installed in the square frame 7. The two No. 3 arms 11 are rotatably connected to the adjacent No. 2 arms 10 respectively. A worm 12 is rotatably installed in the square frame 7, and the worm 12 is meshed with the two worm gears 8. A coil spring 13 is fixedly connected to the bottom end of the worm 12, and one end of the coil spring 13 is fixedly connected to the surface of the square frame 7. Elastic arms 14 for clamping the nozzle head are fixed on the top of the two No. 2 arms 10.

[0024] In some embodiments, a No. 1 adjustment handle 15 is fixed to the bottom end of the screw 6 to facilitate the user to rotate the screw 6 by hand, and a No. 2 adjustment handle 16 is fixed to the bottom end of the worm 12 to facilitate the user to rotate the worm 12 by hand.

[0025] In some embodiments, a clearance opening for avoiding the second arm 10 is opened on the surface of the fixing component 2 so as to enable the second arm 10 to move smoothly.

[0026] The working principle and use process of the utility model are as follows: when using, first adjust the No. 1 adjustment handle 15, and drive the screw 6 to rotate through the No. 1 adjustment handle 15, and adjust the position relationship between the lifting block 5 and the lifting slot 4 through the rotation of the screw 6, that is, the distance between the lifting block 5 and the upper surface of the lifting slot 4 is steplessly adjusted through the screw 6, so as to meet the required height during the inspection of this batch of nozzle heads, and then adjust the No. 2 adjustment handle 16, the No. 2 adjustment handle 16 overcomes the elastic force of the coil spring 13, drives the worm 12 to rotate on the square frame 7, the worm 12 drives the two worm wheels 8 to rotate, and the worm wheel 8 drives the No. 2 arm 10 to move through the cooperation of the No. 1 arm 9 and the No. 3 arm 11, As a result, the No. 2 arms 10 symmetrically arranged on both sides of the square frame 7 begin to shrink, so that the inner surface of the circular nozzle head is then put on the elastic arm 14, the No. 2 adjusting handle 16 is loosened, and the worm 12 is reset by the coil spring 13. During this process, the No. 2 arms 10 drive the elastic arms 14 to expand outward and press against the inner surface of the nozzle head, so that the axis of the nozzle head is now located on the axis of the detection component 3, and when the elastic arms 14 expand outward and press against the inner surfaces of different nozzle heads, the axis of the nozzle head remains unchanged, that is, the positioning of the nozzle head is completed. At the same time, the self-locking of the worm wheel 8 and the worm 12 can lock the distance between the No. 2 arms 10, so that the nozzle head will not accidentally fall off during the detection process.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A self-locking positioning device for nozzle heads of various sizes, comprising a support platform (1), characterized in that: A fixing component (2) is installed on the top of the support platform (1), and a detection component (3) for detecting the nozzle head is installed on the fixing component (2). A lifting groove (4) is opened at one end of the fixing component (2), and a lifting block (5) is slidably installed in the lifting groove (4). A screw (6) is arranged in the lifting groove (4), and the top end of the screw (6) is rotatably connected to the fixing component (2) through a C-shaped clamping ring (17). The lifting block (5) is threadedly connected to the surface of the screw (6), and a square frame (7) is fixed on the surface of the lifting block (5). Two worm gears (8) are symmetrically rotatably installed in the square frame (7), and the surfaces of the two worm gears (8) are A No. 1 arm (9) is fixed to each of the two No. 1 arms (9), and a No. 2 arm (10) is rotatably mounted on one end of each of the two No. 1 arms (9). Two No. 3 arms (11) are symmetrically rotatably mounted in the square frame (7), and the two No. 3 arms (11) are respectively rotatably connected to the adjacent No. 2 arms (10). A worm (12) is rotatably mounted in the square frame (7), and the worm (12) is meshingly connected to two worm wheels (8). A coil spring (13) is fixedly connected to the bottom end of the worm (12), and one end of the coil spring (13) is fixedly connected to the surface of the square frame (7). An elastic arm (14) for clamping a nozzle head is fixedly mounted on the top end of each of the two No. 2 arms (10).

2. A self-locking positioning device for nozzle heads of various sizes according to claim 1, characterized in that: A No. 1 adjustment handle (15) is fixed to the bottom end of the screw rod (6).

3. The self-locking positioning device for nozzle heads of various sizes according to claim 1, characterized in that: A second adjusting handle (16) is fixed to the bottom end of the worm (12).

4. The self-locking positioning device for nozzle heads of various sizes according to claim 1, characterized in that: A threaded hole adapted to fit the screw rod (6) is provided in the middle of the lifting block (5).

5. The self-locking positioning device for nozzle heads of various sizes according to claim 1, characterized in that: The surface of the fixing component (2) is provided with an escape opening for evading the second extension arm (10).

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