Automatic rust-proof spraying device for hard tools

Abstract

The invention belongs to the field of geometric quantity measurement digital manufacturing, and relates to an automatic rust-proof spraying device for a hard tool. A programmable controller, a linear motion module, an automatic spraying machine tool, a rotary air cylinder, a pneumatic clamping jaw and other devices are adopted, multi-disciplinary technologies such as automatic control, mechanical transmission, electrical and electronic engineering and the like are involved, and personnel participation is reduced to the maximum extent. Compared with manual anti-rust oil smearing operation, the anti-rust oil spraying device has the advantages that the anti-rust spraying efficiency and automation degree of the hard tools are greatly improved, and the labor intensity of metering personnel is reduced. The special clamp is designed, rapid and accurate clamping of hard tools of multiple models and specifications is achieved, and the universality of the device is improved. Meanwhile, accurate positioning of the working face of the measuring tool is achieved through the photoelectric detection technology, the complete working faces of various hard measuring tools are covered with the movable correlation type spray guns, the spraying speed is high, precision is high, uniformity is good, and anti-rust oil loss and environmental pollution are reduced.

Description

Technical Field

[0001] The invention belongs to the field of geometric measurement digital manufacturing and relates to an automatic anti-rust spraying device for hard tools. Background Art

[0002] Hard gauges are easy to operate and have high precision, and are widely used in the field of mechanical precision testing. However, after long-term use, hard gauges are prone to wear and corrosion on the working surface, resulting in gauge size errors, which directly affect the gauge detection accuracy and cause quality problems for mechanical products. Therefore, companies need to perform regular maintenance on hard gauges to ensure the accuracy of hard gauges and extend their service life.

[0003] According to the protection and identification management requirements of hard tools, anti-rust treatment is an important part of hard tool maintenance. However, due to the large number of hard tools models and specifications and complex appearance and structure, the current measurement departments of various enterprises basically rely on manual application of anti-rust oil on the working surface of the measuring tools. Not only is the efficiency low and the labor intensity of the measurement personnel is high, but it also causes a large degree of resource waste and environmental pollution. With the continuous increase in production tasks of my country's manufacturing enterprises and the rapid improvement of product quality requirements, the existing manual anti-rust treatment methods for hard tools are seriously lagging behind production in terms of work efficiency and automation. There is an urgent need to invent a fast and automated hard tool anti-rust spraying technology. Summary of the invention

[0004] In view of the shortcomings of the existing artificial anti-rust treatment technology, the purpose of the present invention is to provide an automatic anti-rust spraying device for hard tools, which effectively improves the protection quality and work efficiency of hard tools.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An automatic anti-rust spraying device for hard tools comprises a tool clamping module, a station switching module, an automatic spraying module and a workbench.

[0007] Preferably, the measuring tool clamping module is installed on the station switching module, and is used to position and clamp plug gauges, ring gauges and other hard quality tools that need anti-rust spraying. The station switching module is installed on the base of the workbench, and can rotate relatively and drive the measuring tool clamping module and the measuring tools clamped thereon to switch stations together. The automatic spraying module is installed on the top of the workbench shell, and is used to spray anti-rust oil on the working surface of the measuring tool.

[0008] Preferably, according to the above technical solution, by setting a measuring tool clamping module, the automatic positioning and clamping of hard tools is realized, which effectively solves the universal clamping problem of hard tools of different models and specifications and improves the efficiency of rust-proof spraying of hard tools. The measuring tool clamping module is composed of a clamping mechanism, a feeding mechanism and a bottom plate.

[0009] Furthermore, the clamping mechanism of the measuring tool clamping module includes a pneumatic clamp, a special clamp and a connecting piece thereof. The special clamp is mounted on the pneumatic clamp through its connecting piece, and the pneumatic clamp is then mounted on the mounting seat of the station switching module through a pneumatic clamp mounting plate.

[0010] The clamping mechanism drives the special clamp to position and clamp the hard tool to be sprayed through the opening or closing movement provided by the pneumatic clamping jaws.

[0011] The special fixture adopts a cross structure, the upper part is designed as a 60° upward V-shaped surface for clamping a plug gauge with a handle, and the lower part is designed as a horizontal inward V-shaped surface for clamping a ring gauge.

[0012] Furthermore, the unloading mechanism of the measuring tool clamping module comprises a cylinder and a small push plate. The cylinder is mounted on the back of the bottom plate of the measuring tool clamping module, and the front end of the output push rod of the cylinder is threadedly connected with the small push plate.

[0013] The cylinder provides a linear motion to drive the small push plate to push the hard mass tool after spraying out of the automatic anti-rust spraying device.

[0014] The small push plate is designed as a horizontal inward V-shaped structure, which can meet the needs of pushing the plug gauge and the ring gauge at the same time.

[0015] Furthermore, the bottom plate of the measuring tool clamping module is used to support the hard tool to be sprayed, and at the same time can limit the spraying area. The rear end of the bottom plate is installed together with the cylinder of the feeding mechanism, and the front end of the bottom plate is designed as a slope structure with a circular chamfer, which is convenient for the hard tool to be pushed out from the bottom plate. A circular arc guide groove is designed in the center of the bottom plate, which plays a guiding role when the feeding mechanism pushes the plug gauge. A universal ball is installed under the bottom plate, which can roll along the table top of the workbench and is used to support the entire measuring tool clamping module when the workstation is switched.

[0016] Preferably, according to the above technical solution, by setting a station switching module, the hard tool clamping module is driven to rotate, thereby realizing automatic station switching of the hard tool during the spraying process, thereby improving the automation level of the hard tool anti-rust spraying process. The station switching module is composed of a rotary cylinder and a mounting seat.

[0017] Furthermore, the rotary cylinder of the station switching module is installed on the workbench base, and the measuring tool clamping module is installed on the output shaft of the rotary cylinder through the mounting seat of the station switching module. The rotary cylinder is a three-position rotary cylinder, which can realize the automatic switching of the sprayed measuring tool between the clamping station, the spraying station and the unloading station.

[0018] Preferably, according to the above technical solution, by setting up an automatic spraying module, accurate and automatic anti-rust spraying of the hard tool working surface is achieved, the uniformity of the spraying is improved and anti-rust oil is saved. The automatic spraying module is composed of a linear motion module, a spray gun, a photoelectric detector and a mounting plate.

[0019] Furthermore, the linear motion module of the automatic spraying module is installed on the top of the shell of the workbench, the slide of the linear motion module has the mounting plate, the two spray guns and the photoelectric detector are installed on the slide through the mounting plate, and can reciprocate under the drive of the linear motion module. When the hard mass tool is in the spraying station, the photoelectric detector detects the specific position of the measuring tool, and then the spray gun automatically sprays anti-rust oil on the working surface of the measuring tool.

[0020] Preferably, according to the above technical solution, a workbench is provided to install and support the gauge clamping module, the station switching module and the automatic spraying module. The workbench shell can prevent the anti-rust oil from splashing during the gauge spraying process, and an annular groove is designed on the workbench surface, which serves as the moving track of the universal ball and can also collect excess anti-rust oil.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. The present invention uses programmable controllers, linear motion modules, automatic spraying machines, rotary cylinders, pneumatic grippers and other devices, involving multidisciplinary technologies such as automatic control, mechanical transmission, electrical and electronic engineering, and minimizes the involvement of personnel. Compared with the operation of manually applying anti-rust oil, the present invention greatly improves the efficiency and automation of anti-rust spraying of hard tools, and reduces the labor intensity of measurement personnel.

[0023] The present invention designs a special fixture to realize the rapid and accurate clamping of hard tools of various models and specifications, thereby improving the versatility of the device. At the same time, the present invention realizes the precise positioning of the working surface of the measuring tool through photoelectric detection technology, and uses a mobile opposite-shooting spray gun to cover the complete working surface of various hard tools, which not only has a fast spraying speed, high precision, and good uniformity, but also reduces the loss of anti-rust oil and the pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the specification of this application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0025] Figure 1 It is the overall structural composition diagram of this embodiment;

[0026] Figure 2 is a schematic structural diagram of the measuring tool clamping module of this embodiment;

[0027] Figure 3is a schematic structural diagram of the clamping mechanism in the measuring tool clamping module of this embodiment;

[0028] FIG4( a ) is a diagram showing the clamping effect of the measuring tool of the present embodiment;

[0029] Fig. 4(b) is a ring gauge effect diagram of the present embodiment;

[0030] Figure 5 is a structural schematic diagram of a special clamp in the clamping mechanism of this embodiment;

[0031] Figure 6 It is a structural schematic diagram of the material unloading mechanism in the measuring tool clamping module of this embodiment;

[0032] Figure 7 is a schematic structural diagram of the bottom plate in the measuring tool clamping module of this embodiment;

[0033] Figure 8 Schematic diagram of the structure of the station switching module of this embodiment;

[0034] Fig. 9 Schematic diagram of the structure of the automatic spraying module of this embodiment.

[0035] Description of reference numerals:

[0036] Figure 1 Middle: 101—gauge clamping module; 102—station switching module; 103—workbench base; 104—automatic spraying module; 105—workbench shell; 106—workbench table top.

[0037] Figure 2 Middle: 201 - clamping mechanism; 202 - bottom plate; 203 - unloading mechanism.

[0038] Figure 3 Middle: 301—pneumatic gripper; 302—pneumatic gripper mounting plate; 303—special fixture; 304—connecting piece.

[0039] In Figure 4: 401 - plug gauge; 402 - ring gauge.

[0040] Figure 6 Middle: 601—cylinder; 602—small push plate.

[0041] Figure 7 Middle: 701—base plate; 702—universal ball bearing.

[0042] Figure 8 Middle: 801 - rotary cylinder; 802 - output shaft; 803 - rolling bearing; 804 - mounting seat.

[0043] Fig. 9Middle: 901—linear motion module; 902—slide table; 903—photoelectric detector; 904—mounting plate; 905—spray gun. DETAILED DESCRIPTION

[0044] Example:

[0045] The following is combined with Figure 1-9 The present invention is described in further detail.

[0046] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] Embodiment 1:

[0049] See also Figure 1 , an automatic anti-rust spraying device for hard tools of the present application comprises a measuring tool clamping module 101, a station switching module 102, an automatic spraying module 104 and a workbench. Among them, the measuring tool clamping module 101 is installed on the station switching module 102, and is used for positioning and clamping the hard tools that need anti-rust spraying. The station switching module 102 is installed on the workbench base 103, and can rotate relatively and drive the measuring tool clamping module 101 and the measuring tools clamped thereon to switch stations together. The automatic spraying module 104 is installed on the top of the workbench shell 105, and is used to spray anti-rust oil on the working surface of the measuring tool. The workbench shell 105 can also prevent the anti-rust oil from splashing out during spraying. An annular groove is designed on the workbench surface 106, which not only provides movement support for the station switching module 102, but also can collect excess anti-rust oil.

[0050] See also Figure 2 The measuring tool clamping module 101 is composed of a clamping mechanism 201 , a base plate 202 and a feeding mechanism 203 .

[0051] See also Figure 3The clamping mechanism 201 further includes a pneumatic clamp 301, a special clamp 303 and a connecting piece 304 thereof. The special clamp 303 is mounted on the pneumatic clamp 301 through its connecting piece 304, and the pneumatic clamp 301 is further mounted on the mounting seat 804 of the station switching module 102 through the pneumatic clamp mounting plate 302. The clamping mechanism drives the special clamp 303 to position and clamp the hard tool to be sprayed through the opening or closing movement provided by the pneumatic clamp 301. Please refer to Figure 4 for the clamping effect.

[0052] See also Figure 5 The special fixture 303 adopts a cross structure. The upper part is designed as a 60° upward V-shaped surface for clamping the plug gauge with handle. The lower part is designed as a horizontal inward V-shaped surface for clamping the ring gauge.

[0053] See also Figure 6 The unloading mechanism 203 of the gauge clamping module includes a cylinder 601 and a small push plate 602. The cylinder 601 is installed on the back of the bottom plate 202, and the front end of the output push rod of the cylinder 601 is installed with a small push plate 602 through a threaded connection. The small push plate 602 is designed to be a horizontal inward V-shaped structure, which can meet the needs of pushing the plug gauge and the ring gauge at the same time. When unloading, the cylinder 601 provides linear motion, driving the small push plate 602 to push the hard mass tool after spraying out of the automatic anti-rust spraying device.

[0054] See also Figure 7 The bottom plate of the gauge clamping module is used to support the hard quality tool to be sprayed, and at the same time can limit the spraying area. The rear end of the bottom plate 701 is installed together with the cylinder 601 of the feeding mechanism, and the front end of the bottom plate 701 is designed as a slope structure with a circular arc chamfer, which is convenient for the hard quality tool to be pushed out from the bottom plate. A circular arc guide groove is designed in the center of the bottom plate 701, which plays a guiding role when the feeding mechanism 203 pushes the plug gauge. A universal ball 702 is also installed under the bottom plate 701, which can roll along the table 106 of the workbench to support the entire gauge clamping module 101 when the workstation is switched.

[0055] See also Figure 8 The station switching module 102 is composed of a rotary cylinder 801 and a mounting seat 804. The rotary cylinder 801 is mounted on the workbench base 103, and the measuring tool clamping module 101 is mounted on the output shaft 802 of the rotary cylinder through the mounting seat 804. The rotary cylinder 801 is a three-position rotary cylinder, and its output shaft 802 can be switched at three angles of 0°, 90°, and 180°, thereby driving the measuring tools clamped on the measuring tool clamping module to reach the clamping station, the spraying station, and the unloading station respectively. A rolling bearing 803 is installed between the rotary cylinder output shaft 802 and the workbench table 106 to support the rotation of the output shaft 802 and prevent the anti-rust oil from dripping downward from the workbench table 106.

[0056] See also Fig. 9 The automatic spraying module 104 is composed of a linear motion module 901, a photoelectric detector 903, a mounting plate 904 and a spray gun 905. The linear motion module 901 is mounted on the top of the workbench housing 105, and the photoelectric detector 903 and two spray guns 905 are mounted on the slide 902 of the linear motion module through the mounting plate 904, and can reciprocate under the drive of the linear motion module. When the hard mass tool is in the spraying station, the photoelectric detector 903 detects the position of the working surface of the measuring tool, and then the spray gun 905 automatically sprays anti-rust oil on the working surface of the measuring tool.

[0057] Embodiment 2:

[0058] An automatic anti-rust spraying device for hard tools comprises a tool clamping module 101, a station switching module 102, an automatic spraying module 104 and a workbench.

[0059] The measuring tool clamping module 101 is installed on the workstation switching module 102, and is used to position and clamp plug gauges, ring gauges and other hard quality tools that need anti-rust spraying. The workstation switching module 102 is installed on the base of the workbench, and can rotate relatively and drive the measuring tool clamping module 101 and the measuring tools clamped thereon to switch positions together. The automatic spraying module 104 is installed on the top of the workbench shell 105, and is used to spray anti-rust oil on the working surface of the measuring tool.

[0060] Preferably, according to the above technical solution, by setting the measuring tool clamping module 101, the automatic positioning and clamping of the hard mass tool is realized, which effectively solves the universal clamping problem of hard mass tools of different models and specifications, and improves the efficiency of rust-proof spraying of hard mass tools. The measuring tool clamping module 101 is composed of a clamping mechanism 201, a feeding mechanism 203 and a bottom plate.

[0061] Furthermore, the clamping mechanism 201 of the measuring tool clamping module 101 includes a pneumatic clamp, a special clamp and its connecting parts. The special clamp is installed on the pneumatic clamp through its connecting parts, and the pneumatic clamp is then installed on the mounting seat of the station switching module 102 through a pneumatic clamp mounting plate.

[0062] The clamping mechanism 201 drives the special clamp to position and clamp the hard tool to be sprayed through the opening or closing movement provided by the pneumatic clamp.

[0063] The special fixture adopts a cross structure, the upper part is designed as a 60° upward V-shaped surface for clamping a plug gauge with a handle, and the lower part is designed as a horizontal inward V-shaped surface for clamping a ring gauge.

[0064] The unloading mechanism 203 of the measuring tool clamping module 101 includes a cylinder and a small push plate. The cylinder is installed on the back of the bottom plate of the measuring tool clamping module 101, and the front end of the output push rod of the cylinder is installed with the small push plate through a threaded connection.

[0065] The cylinder provides a linear motion to drive the small push plate to push the hard mass tool after spraying out of the automatic anti-rust spraying device.

[0066] The small push plate is designed as a horizontal inward V-shaped structure, which can meet the needs of pushing the plug gauge and the ring gauge at the same time.

[0067] The bottom plate of the measuring tool clamping module 101 is used to support the hard quality tool to be sprayed, and at the same time, it can limit the spraying area. The rear end of the bottom plate is installed together with the cylinder of the unloading mechanism 203, and the front end of the bottom plate is designed as a slope structure with a circular arc chamfer, which is convenient for the hard quality tool to be pushed out from the bottom plate. A circular arc guide groove is designed in the center of the bottom plate, which plays a guiding role when the unloading mechanism 203 pushes the plug gauge. A universal ball is installed under the bottom plate, which can roll along the table top of the workbench and is used to support the entire measuring tool clamping module 101 when the workstation is switched.

[0068] By setting the station switching module 102, the hard tool clamping module 101 is driven to rotate, thereby realizing the automatic station switching of the hard tool during the spraying process, thereby improving the automation level of the hard tool anti-rust spraying process. The station switching module 102 is composed of a rotary cylinder and a mounting seat.

[0069] The rotary cylinder of the station switching module 102 is mounted on the workbench base 103, and the measuring tool clamping module 101 is mounted on the output shaft of the rotary cylinder through the mounting seat of the station switching module 102. The rotary cylinder is a three-position rotary cylinder, which can realize the automatic switching of the sprayed measuring tool between the clamping station, the spraying station and the unloading station.

[0070] By setting up the automatic spraying module 104, accurate and automatic anti-rust spraying of the hard tool working surface is achieved, the uniformity of the spraying is improved and the anti-rust oil is saved. The automatic spraying module 104 is composed of a linear motion module, a spray gun, a photoelectric detector and a mounting plate.

[0071] The linear motion module of the automatic spraying module 104 is installed on the top of the shell of the workbench, and the slide of the linear motion module has the mounting plate. The two spray guns and the photoelectric detector are installed on the slide through the mounting plate and can reciprocate under the drive of the linear motion module. When the hard mass tool is in the spraying station, the photoelectric detector detects the specific position of the measuring tool, and then the spray gun automatically sprays anti-rust oil to the working surface of the measuring tool.

[0072] The workbench is provided to install and support the gauge clamping module 101, the station switching module 102 and the automatic spraying module 104. The workbench housing 105 can prevent the anti-rust oil from splashing during the gauge spraying process, and an annular groove is designed on the workbench surface 106, which serves as the moving track of the universal ball and can also collect excess anti-rust oil.

[0073] Embodiment 3:

[0074] Based on the above description, the complete hard tool anti-rust spraying process of this device is as follows:

[0075] Gauge clamping. After the device receives the gauge spraying instruction, the gauge clamping module 101 reaches the clamping station under the drive of the station switching module 102. Next, the pneumatic clamp 301 moves to the set position according to the gauge type, and the hard mass tool to be sprayed is manually placed in the middle of the special clamp 303. Then the pneumatic clamp 301 closes and clamps the hard mass tool through the special clamp 303.

[0076] Measuring tool spraying. After the measuring tool is clamped, the measuring tool clamping module 101 reaches the spraying station under the drive of the station switching module 102, triggering the automatic spraying module 104 to work. The linear motion module 901 drives the spray gun to move above the measuring tool. When the photoelectric detector 903 detects the position of the measuring tool working surface, the spray gun 905 is started to spray anti-rust oil.

[0077] After all the working surfaces of the measuring tool are sprayed, the measuring tool clamping module 101 continues to reach the unloading station under the drive of the station switching module 102. Then the pneumatic clamp 301 opens, and the sprayed measuring tool falls onto the bottom plate 202. Next, the cylinder push rod of the unloading mechanism 203 extends, and the measuring tool is pushed out of the anti-rust spraying device through the small push plate 602, thus completing the anti-rust spraying work of the entire hard mass tool.

[0078] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An automatic anti-rust spraying device for hard tools, characterized in that: It comprises a measuring tool clamping module (101), a station switching module (102), an automatic spraying module (104) and a workbench; The measuring tool clamping module (101) is mounted on the workstation switching module (102), and the workstation switching module (102) is mounted on the base of the workbench and can rotate relatively to drive the measuring tool clamping module (101) and the measuring tool clamped thereon to switch workstations together; the automatic spraying module (104) is mounted on the top of the workbench shell (105) and is used to spray anti-rust oil on the working surface of the measuring tool; The measuring tool clamping module (101) is composed of a clamping mechanism (201), a material unloading mechanism (203) and a bottom plate; the clamping mechanism (201) comprises a pneumatic clamp, a special clamp (303) and a connecting piece thereof; the special clamp (303) is mounted on the pneumatic clamp via its connecting piece, and the pneumatic clamp is then mounted on the mounting seat of the station switching module (102) via a pneumatic clamp mounting plate; The unloading mechanism (203) of the measuring tool clamping module (101) comprises a cylinder and a small push plate; the cylinder is mounted on the back of the bottom plate of the measuring tool clamping module (101), and the front end of the output push rod of the cylinder is mounted with the small push plate through a threaded connection; The bottom plate of the measuring tool clamping module (101) is used to support the hard tool to be sprayed and can limit the spraying area; the rear end of the bottom plate is installed together with the cylinder of the feeding mechanism (203), and the front end of the bottom plate is designed as a slope structure with a circular arc chamfer, which is convenient for the hard tool to be pushed out from the bottom plate; a circular arc guide groove is designed in the center of the bottom plate, which plays a guiding role when the feeding mechanism (203) pushes the plug gauge measuring tool; a universal ball is installed under the bottom plate, which can roll along the table surface of the workbench and is used to support the entire measuring tool clamping module (101) when the workstation is switched; The workstation switching module (102) is composed of a rotary cylinder and a mounting seat; The rotary cylinder of the workstation switching module (102) is mounted on a workbench base (103), and the measuring tool clamping module (101) is mounted on the output shaft of the rotary cylinder via a mounting seat of the workstation switching module (102).

2. The automatic anti-rust spraying device for hard tools as claimed in claim 1, characterized in that: The special clamp (303) adopts a cross-type structure, the upper part is designed as a 60° upward V-shaped surface for clamping a plug gauge with a handle; the lower part is designed as a horizontal inward V-shaped surface for clamping a ring gauge.

3. An automatic anti-rust spraying device for hard tools as claimed in claim 1 or 2, characterized in that: The small push plate is a horizontal inward V-shaped structure.

4. An automatic anti-rust spraying device for hard tools as claimed in claim 1 or 2, characterized in that: The linear motion module of the automatic spraying module (104) is installed on the top of the shell of the workbench, the slide of the linear motion module is provided with the mounting plate, the two spray guns and the photoelectric detector are installed on the slide via the mounting plate, and can reciprocate under the drive of the linear motion module.

5. The automatic anti-rust spraying device for hard tools as claimed in claim 3, characterized in that: The linear motion module of the automatic spraying module (104) is installed on the top of the shell of the workbench, the slide of the linear motion module is provided with the mounting plate, the two spray guns and the photoelectric detector are installed on the slide via the mounting plate, and can reciprocate under the drive of the linear motion module.

6. An automatic anti-rust spraying device for hard tools as claimed in claim 1, 2 or 5, characterized in that: The workbench surface (106) is provided with an annular groove, which serves as a moving track for the universal ball and can collect excess anti-rust oil.

7. The automatic anti-rust spraying device for hard tools as claimed in claim 3, characterized in that: The workbench surface (106) is provided with an annular groove, which serves as a moving track for the universal ball and can collect excess anti-rust oil.

8. The automatic anti-rust spraying device for hard tools as claimed in claim 4, characterized in that: The workbench surface (106) is provided with an annular groove, which serves as a moving track for the universal ball and can collect excess anti-rust oil.

9. The automatic anti-rust spraying device for hard tools as claimed in claim 1, characterized in that: The rotary cylinder is a three-position rotary cylinder, which can realize automatic switching of the sprayed measuring tool among the three stations of the clamping station, the spraying station and the unloading station.

10. The method for using the automatic anti-rust spraying device for hard tools according to any one of claims 1 to 9, characterized in that: Here are the steps: The first step: measuring tool clamping; after the device receives the measuring tool spraying instruction, the measuring tool clamping module (101) reaches the clamping station under the drive of the station switching module (102); the pneumatic clamp (301) moves to the set position according to the measuring tool type, and the hard mass tool to be sprayed is manually placed in the middle of the special clamp (303), and then the pneumatic clamp (301) is closed and the hard mass tool is clamped by the special clamp (303); Step 2: Spraying the measuring tool; after the measuring tool is clamped, the measuring tool clamping module (101) reaches the spraying station under the drive of the station switching module (102), triggering the automatic spraying module (104) to work; the linear motion module 901 drives the spray gun to move above the measuring tool, and when the photoelectric detector (903) detects the position of the measuring tool working surface, the spray gun (905) is started to spray the anti-rust oil; Step 3: unloading the measuring tool; after all working surfaces of the measuring tool are completely sprayed, the measuring tool clamping module (101) continues to reach the unloading station under the drive of the station switching module (102); then the pneumatic clamping jaws (301) are opened, and the sprayed measuring tool falls onto the bottom plate (202); next, the cylinder push rod of the unloading mechanism (203) is extended, and the measuring tool is pushed out of the anti-rust spraying device through the small push plate (602), thus completing the anti-rust spraying work of the entire hard mass tool.

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