Three-coordinate measuring machine convenient to clean

Abstract

The invention discloses a three-coordinate measuring machine convenient to clean, and particularly relates to the technical field of three-coordinate measuring machines, which comprises a main body, a detection end arranged above the main body, a mounting bracket connected with the upper part of the detection end, a protective cylinder tightly sleeved on the outer wall of the mounting bracket in an up-down sliding manner, and a driving mechanism for driving the protective cylinder to move up and down, the driving mechanism is arranged at the side part of the mounting bracket; an iris mechanism used for sealing is arranged at the bottom end of the protective cylinder, a suction structure is arranged at the lower end of the protective cylinder, and a negative ion generation structure is movably arranged in the suction structure and is close to the iris mechanism. According to the three-coordinate measuring machine convenient to clean provided by the invention, the cleanliness of the detection end is ensured, and the technical problem that a protective structure needs to be manually mounted by a worker in the past is relatively tedious is solved.

Description

Technical Field

[0001] The invention relates to the technical field of three-coordinate measuring machines, in particular to a three-coordinate measuring machine which is easy to clean. Background Art

[0002] The three-dimensional coordinate measuring machine is one of the most effective methods for measuring and obtaining dimensional data, because it can replace a variety of surface measurement tools and expensive combination gauges, and reduce the time required for complex measurement tasks from hours to minutes, which is an effect that other instruments cannot achieve. The equipment uses its own X, Y, and Z axial drives to perform high-precision inspection on the object to be inspected.

[0003] For example, the Chinese utility model patent with patent application number CN2023207833218 discloses a three-dimensional coordinate measuring machine. Different from the prior art, the three-dimensional coordinate measuring machine uses a convenient disassembly and assembly component. When the probe needs to be disassembled, the hand screw can be loosened and the moving ring can be manually pushed down. In conjunction with the action of multiple components, the two springs are compressed and the card blocks are disengaged from the corresponding two card slots at the same time, so that the probe connected to the mounting block can be easily replaced, thereby facilitating maintenance after the measuring probe is damaged to avoid affecting the progress of subsequent measurements.

[0004] However, the three-dimensional coordinate measuring machine still has the following problems when in use: the three-dimensional coordinate measuring machine requires a high precision detection end, and debris or excessive dust adhering to its surface will affect its precision, while the existing measuring machine generally has no protective measures on the end, making it easy for the end of the measuring machine to touch foreign objects and come into contact with the outside air; the three-dimensional coordinate measuring instrument uses air bearings for actuation, and has high requirements on air quality, such as humidity, temperature, dust, and light. Although there are detection end protection devices with different structures in the prior art, most of them use simple mechanical structure protection, with a single protection method and general protection effect; this scheme proposes a three-dimensional coordinate measuring machine that is easy to clean, which is used to solve the above-mentioned technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a three-coordinate measuring machine that is easy to clean, so as to solve the technical problem of how to ensure the cleanliness of the detection end raised in the above-mentioned background technology, avoid the cumbersome technical problem of manual installation of protective structures by workers in the past, and have excellent protective effect.

[0006] A three-dimensional coordinate measuring machine that is easy to clean, comprising a main body, a detection end is arranged above the main body, a mounting bracket connected to the detection end, a protective cylinder that slides up and down and tightly fits on the outer wall of the mounting bracket, and a driving mechanism for driving the protective cylinder to move up and down, wherein the driving mechanism is arranged on the side of the mounting bracket;

[0007] The bottom end of the protective tube is provided with an iris mechanism for sealing, the lower end of the protective tube is provided with a suction structure, the internal activity of the suction structure is provided with a negative ion generating structure, and the negative ion generating structure is arranged close to the iris mechanism.

[0008] The iris mechanism includes a horizontally arranged fixing ring, five cam plates arranged in a circular array on the bottom surface of the fixing ring, a gear shaft passing through the cam plate and the fixing ring, a gear coaxially fixed to the bottom end of the gear shaft, and a synchronous belt simultaneously meshed and connected with the outer sides of the five gears, one end of the cam plate is rotatably connected to the fixing ring through the gear shaft, a plurality of through holes are arranged on the cam plate, and a filter material is attached to the inner side or the outer side of the cam plate;

[0009] One of the gear shafts is coaxially connected to the rotating handle, and the upper end surface of the fixing ring is fixedly connected to the bottom surface of the protective tube.

[0010] The outer side surface of the cam plate is an arc surface, the center of the arc surface is located at the center point, and the two ends of the arc surface are respectively connected with a concave arc surface and a convex arc surface, the center of the convex arc surface is set at the center of the gear shaft, and the center of the concave arc surface is set at the center of the gear shaft of another adjacent cam plate; the concave arc surface and the convex arc surface of the two adjacent cam plates are in contact with each other.

[0011] The suction structure comprises a suction pipe whose one end is connected to the lower end of the protective tube and a suction pump connected to the other end of the suction pipe, and the suction pump is fixed to the lower end of the protective tube.

[0012] The negative ion generating structure is arranged inside one end of the suction tube; the negative ion generating structure comprises a quartz mercury lamp and a movable column fixed on the outside of the quartz mercury lamp, the movable column slides through the long through hole arranged on the outside of the suction tube, and the ultraviolet irradiation direction of the quartz mercury lamp is arranged toward the cam plate.

[0013] The driving mechanism comprises a driving motor, a driving gear coaxially connected to the output end of the driving motor, a driving rack vertically arranged and meshingly connected to the driving gear, a moving bar fixed to the back side of the driving rack, and a limit block, wherein the limit blocks are arranged on both the front and rear sides of the moving bar, and a top block is installed above the limit block;

[0014] A fixing plate is arranged below the driving motor, and the fixing plate is fixedly connected to the mounting bracket.

[0015] A moving block is arranged above the mounting bracket, and a lateral driving unit is arranged at the rear side of the moving block. The lateral driving unit includes a screw driving mechanism or a gear set driving mechanism.

[0016] The limit block is fixedly connected to the inner wall of the installation shell, and the limit block and the central axis of the moving bar are symmetrically arranged.

[0017] The filter material is any one of an activated carbon film, a bamboo charcoal film, and a negative ion material film.

[0018] Conductive threads are passed through the filter material and are connected in a closed DC circuit.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] (1) The three-dimensional coordinate measuring machine provided by the present invention protects the detection end by means of a protective cylinder that moves up and down, which effectively prevents dust and impurities from adhering to its outer wall, and does not need to be disassembled when not in use, thereby reducing the operating procedures; in the present invention, the protective cylinder is automatically moved up and down by the cooperation of a driving mechanism and a driving rack, that is, the staff does not need to manually install the protective cylinder, which further avoids damage to the detection end, thereby improving the automation efficiency of the equipment.

[0021] (2) An iris mechanism is provided, which has the following technical effects:

[0022] First, by operating the rotating handle, the five cam plates are opened or closed at the same time. When the use is finished, the detection end is closed to prevent the dirt in the air from adhering.

[0023] Secondly, the cam plate is provided with a plurality of through holes and is adhered with filter materials, which, while removing the air impurities inside the protective tube, cooperates with the suction structure to help adsorb the impurities in the external air onto the filter materials, so that the air inside the protective tube is clean;

[0024] (3) The suction structure is provided and combined with the negative ion generating structure, which has the following technical effects:

[0025] The first is to suck the air inside the protective tube to make the air inside it clean;

[0026] Secondly, the suction tube can accommodate the quartz mercury lamp, avoiding interference between the quartz mercury lamp and the mounting bracket when the protective tube rises, which helps to protect the quartz mercury lamp;

[0027] Third, the ultraviolet rays generated by the quartz mercury lamp can ionize the air, and its electrons are generated on the dust particles on the filter material through the photoelectric effect, and negative ions are formed by adhesion. This ultraviolet light also produces ozone, and coupled with the suction effect, the purified air enters the interior of the protective tube; at the same time, ultraviolet rays can also ionize the dust on the detection end, and under the suction effect, the cleaning effect is achieved.

[0028] (4) A filter material is provided, which may be any one of an activated carbon film, a bamboo charcoal film, and a negative ion material film. A conductive wire is passed through the filter material, and the conductive wire is connected to a closed DC circuit. When the conductive wire is energized, the filter material is energized, and the filter material releases negative ions. These negative ions can combine with particulate matter in the air, thereby purifying the air. When the filter material film is energized, static electricity will be generated, which also helps to purify the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of a three-dimensional coordinate measuring machine that is easy to clean according to the present invention (the mounting shell is in an exploded state).

[0030] Figure 2 for Figure 1 Another perspective structural diagram of .

[0031] Figure 3 The present invention is a schematic diagram of a partial explosion structure of a three-dimensional coordinate measuring machine that is easy to clean.

[0032] Figure 4 For the present invention Figure 3 A partial enlarged view of area A in .

[0033] Figure 5 The local three-dimensional structure of the three-dimensional coordinate measuring machine in the present invention is shown in FIG. Figure 1 .

[0034] Figure 6 It is a partial front view structural schematic diagram of the three-dimensional coordinate measuring machine in the present invention.

[0035] Figure 7 The local three-dimensional structure of the three-dimensional coordinate measuring machine in the present invention is shown in FIG. Figure 2 .

[0036] Figure 8 It is a schematic diagram of the connection structure between the iris mechanism and the suction structure in the present invention.

[0037] Fig. 9 It is a structural schematic diagram of the iris mechanism of the present invention.

[0038] Fig.10 It is a structural schematic diagram of the suction structure of the present invention.

[0039] Among them, in the attached drawings: 1, main body; 2, lateral drive unit; 3, moving block; 4, mounting bracket; 5, protective tube; 6, driving rack; 7, detection end; 8, fixed plate; 9, driving mechanism; 901, driving motor; 902, driving gear; 903, moving bar; 904, limiting block; 10, mounting shell; 11, top block; 12, suction pump; 13, suction tube; 14, quartz mercury lamp; 15, moving column; 16, fixing ring; 161, gear shaft; 17, cam plate; 18, synchronous belt; 19, gear; 191, turning handle; 20, filter material. DETAILED DESCRIPTION

[0040] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0041] Example 1

[0042] like Figure 1-Figure 7 As shown, the present invention provides a three-dimensional coordinate measuring machine which is easy to clean. The three-dimensional coordinate measuring machine includes a main body 1, a protective tube 5 and a driving mechanism 9 for changing the position of the protective tube 5. A detection end 7 is arranged above the main body 1, and the detection end 7 can be used to detect the workpiece. A mounting bracket 4 is arranged above the detection end 7, and the mounting bracket 4 is mainly used to install the detection end 7.

[0043] A protective tube 5 is installed on the outer wall of the mounting bracket 4, and the protective tube 5 can protect the detection end 7. The driving mechanism 9 is arranged in the middle of the mounting bracket 4, and a mounting shell 10 is arranged above the protective tube 5. The mounting shell 10 is used to protect the driving mechanism 9. Its purpose is to provide a three-dimensional coordinate measuring machine, which protects the detection end 7 by moving the protective tube 5 up and down, effectively avoiding dust and impurities adhering to its outer wall, so that it does not need to be disassembled when not in use, thereby reducing the operation process.

[0044] like Figure 3 , Figure 4 and Figure 6 As shown, the driving mechanism 9 includes a driving motor 901, a driving gear 902, a moving bar 903 and a limit block 904. The driving gear 902 is installed at the output end of the driving motor 901. The driving gear 902 is meshed and connected with the driving rack 6. The moving bar 903 is installed on the back side of the driving rack 6. Limit blocks 904 are set on the front and rear sides of the moving bar 903.

[0045] A top block 11 is installed above the limit block 904. The top block 11 cooperates with the limit block 904 to limit the position of the moving bar 903, so that it can only move up and down without shifting its position. The top block 11 is fixedly connected to the outer wall of the mounting shell 10, and the bottom end of the moving bar 903 is fixedly connected to the top outer wall of the protective tube 5. When the driving rack 6 and the moving bar 903 move up and down, the protective tube 5 is driven to move up and down.

[0046] The filter material is any one of an activated carbon film, a bamboo charcoal film, and a negative ion material film.

[0047] Conductive wires are passed through the filter material and connected in a closed DC circuit.

[0048] The specific working process of this program is as follows:

[0049] When the driving motor 901 is started, it drives the driving gear 902 at the output end to rotate, and the driving gear 902 drives the moving bar 903 to move upward or downward through the driving rack 6, thereby changing the upper and lower positions of the protective tube 5, and the protective tube 5 limits the moving bar 903 when it moves. The purpose is to realize the automatic up and down movement of the protective tube 5 through the mutual cooperation of the driving mechanism 9 and the driving rack 6, that is, the staff does not need to manually install the protective tube 5, and further avoids damage to the detection end 7, thereby improving the automation efficiency of the equipment.

[0050] Furthermore, the stroke of the driving motor 901 can be input into the main control board to control the distance that the protective tube 5 moves up and down.

[0051] As an implementation mode, a fixing plate 8 is provided under the driving motor 901, and the fixing plate 8 is mainly used for installing the driving motor 901. The fixing plate 8 is fixedly connected to the mounting bracket 4, and the fixing plate 8 is fixedly connected to one side of the mounting bracket 4 by screws.

[0052] Furthermore, slots are provided at the corresponding positions of the mounting bracket 4 and the moving bar 903, that is, the moving bar 903 can continuously move upward without any conflict, and the moving bar 903 can rise and extend into the slots.

[0053] As an implementation mode, a moving block 3 is arranged above the mounting bracket 4, and a lateral driving unit 2 is arranged at the rear side of the moving block 3. The moving block 3 can be moved left and right by the lateral driving unit 2, so that the detection end 7 can detect the workpiece below.

[0054] As an implementation manner, the limiting block 904 is fixedly connected to the right inner wall of the installation shell 10 .

[0055] The driving units of the main body 1, namely the three axial drives of X, Y and Z, belong to the prior art and are not introduced again in this article. Figure 3-4 In the figure, the protective tube 5 is a partial perspective.

[0056] Example 2

[0057] See also Figure 8-Figure 10 The bottom end of the protective tube 5 is provided with an iris mechanism for sealing, the lower end of the protective tube 5 is provided with a suction structure, the internal activity of the suction structure is provided with a negative ion generating structure, and the negative ion generating structure is provided close to the iris mechanism.

[0058] The iris mechanism includes a horizontally arranged fixing ring 16, five cam plates 17 arranged in a circular array on the bottom surface of the fixing ring 16, a gear shaft 161 passing through the cam plate 17 and the fixing ring 16, a gear 19 coaxially fixed to the bottom end of the gear shaft 161, and a synchronous belt 18 simultaneously meshed and connected with the outer sides of the five gears 19. One end of the cam plate 17 is rotatably connected to the fixing ring 16 through the gear shaft 161. The cam plate 17 is provided with a plurality of through holes, and a filter material 20 is attached to the inner side or the outer side of the cam plate 17.

[0059] One of the gear shafts 161 is coaxially connected to the rotating handle 191 , and the upper end surface of the fixing ring 16 is fixedly connected to the bottom surface of the protective tube 5 .

[0060] The handle 191 is manually rotated to rotate the gear shafts 161 and the cam plate 17 simultaneously, thereby opening the bottom end of the protective tube 5 and the detection end works; when the bottom end of the protective tube 5 is closed, the negative ion generating structure and the suction structure work.

[0061] The outer side surface of the cam plate 17 is an arc surface, the center of the arc surface is located at the center point, and the two ends of the arc surface are respectively connected with a concave arc surface and a convex arc surface, the center of the convex arc surface is set at the center of the gear shaft 161, and the center of the concave arc surface is set at the center of the gear shaft 161 of another adjacent cam plate 17; the concave arc surface and the convex arc surface of the two adjacent cam plates 17 are in contact with each other.

[0062] The suction structure includes a suction pipe 13 whose one end is connected to the lower end of the protective tube 5 and a suction pump 12 connected to the other end of the suction pipe 13 . The suction pump 12 is fixed to the lower end of the protective tube 5 .

[0063] A negative ion generating structure is arranged inside one end of the suction tube 13; the negative ion generating structure includes a quartz mercury lamp 14 and a movable column 15 fixed on the outside of the quartz mercury lamp 14, the movable column 15 slides through the long through hole arranged on the outside of the suction tube 13, and the ultraviolet irradiation direction of the quartz mercury lamp 14 is arranged toward the cam plate 17.

[0064] The ultraviolet rays generated from the quartz mercury lamp 14 can ionize the air, and its electrons are generated on nearby metal or dust particles through the photoelectric effect, and negative ions are generated by adhesion. This ultraviolet ray also produces ozone. The working principle of air purification is actually the static electricity principle. After discharge, the electric charge gathers around the dust particles, making them more easily adsorbed to the surface of objects, or adsorbed to each other to become large particles and settle to the ground, resulting in a reduction in the amount of suspended particles in the air.

[0065] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A three-dimensional coordinate measuring machine that is easy to clean, comprising a main body (1), characterized in that: A detection end (7) is arranged above the main body (1), a mounting bracket (4) connected to the detection end (7) above, a protective tube (5) sliding up and down and tightly sleeved on the outer wall of the mounting bracket (4), and a driving mechanism (9) for driving the protective tube to move up and down, and the driving mechanism (9) is arranged on the side of the mounting bracket (4); The bottom end of the protective tube (5) is provided with an iris mechanism for sealing, the lower end of the protective tube (5) is provided with a suction structure, the internal movement of the suction structure is provided with a negative ion generating structure, and the negative ion generating structure is provided close to the iris mechanism; The suction structure comprises a suction pipe (13) whose one end is connected to the lower end of the protective tube (5) and a suction pump (12) connected to the other end of the suction pipe (13); the suction pump (12) is fixed to the lower end of the protective tube (5).

2. The easy-to-clean three-dimensional coordinate measuring machine according to claim 1, characterized in that: The iris mechanism comprises a horizontally arranged fixing ring (16), five cam plates (17) arranged in a circular array on the bottom surface of the fixing ring (16), a gear shaft (161) passing through the cam plate (17) and the fixing ring (16), a gear (19) coaxially fixed to the bottom end of the gear shaft (161), and a synchronous belt (18) simultaneously meshing with the outer sides of the five gears (19), one end of the cam plate (17) being rotatably connected to the fixing ring (16) via the gear shaft (161), a plurality of through holes being arranged on the cam plate (17), and a filter material (20) being attached to the inner side or the outer side of the cam plate (17); One of the gear shafts (161) is coaxially connected to the rotating handle (191), and the upper end surface of the fixing ring (16) is fixedly connected to the bottom surface of the protective tube (5).

3. The easy-to-clean three-dimensional coordinate measuring machine according to claim 2, characterized in that: The outer side surface of the cam plate (17) is an arc surface, the center of the arc surface is located at the center point, and the two ends of the arc surface are respectively connected to a concave arc surface and a convex arc surface, the center of the convex arc surface is set at the center of the gear shaft (161), and the center of the concave arc surface is set at the center of the gear shaft (161) of another adjacent cam plate (17); the concave arc surface and the convex arc surface of the two adjacent cam plates (17) are in contact with each other.

4. The easy-to-clean three-dimensional coordinate measuring machine according to claim 1, characterized in that: The negative ion generating structure is arranged inside one end of the suction tube (13); the negative ion generating structure comprises a quartz mercury lamp (14) and a movable column (15) fixed to the outside of the quartz mercury lamp (14); the movable column (15) slides through a long through hole arranged on the outside of the suction tube (13); and the ultraviolet irradiation direction of the quartz mercury lamp (14) is arranged toward the cam plate (17).

5. The easy-to-clean three-dimensional coordinate measuring machine according to claim 1, characterized in that: The driving mechanism (9) comprises a driving motor (901), a driving gear (902) coaxially connected to the output end of the driving motor (901), a driving rack (6) vertically arranged and meshingly connected to the driving gear (902), a moving bar (903) fixed to the back side of the driving rack (6), and a limit block (904), wherein the limit blocks (904) are arranged on both the front and rear sides of the moving bar (903), and a top block (11) is installed above the limit block (904); A fixing plate (8) is provided below the driving motor (901), and the fixing plate (8) is fixedly connected to the mounting bracket (4).

6. The easy-to-clean three-dimensional coordinate measuring machine according to claim 1, characterized in that: A moving block (3) is arranged above the mounting bracket (4), and a lateral drive unit (2) is arranged at the rear side of the moving block (3). The lateral drive unit (2) comprises a screw drive mechanism or a gear (19) group drive mechanism.

7. The easy-to-clean three-dimensional coordinate measuring machine according to claim 1, characterized in that: The limit block (904) is fixedly connected to the inner wall of the mounting shell (10), and the limit block (904) and the central axis of the moving bar (903) are symmetrically arranged.

8. The easy-to-clean three-dimensional coordinate measuring machine according to claim 2, characterized in that: The filter material is any one of an activated carbon film, a bamboo charcoal film, and a negative ion material film.

9. The easy-to-clean three-dimensional coordinate measuring machine according to claim 8, characterized in that: Conductive threads are passed through the filter material and are connected in a closed DC circuit.

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