Automatic rust-proof spraying device and method for hard tool

Abstract

The invention provides an automatic rust-proof spraying device and method for hard tools, and belongs to the field of geometric quantity measurement digital manufacturing, the automatic rust-proof spraying device comprises a measuring tool clamping module, a station switching module, a workbench and an automatic spraying module, the automatic spraying module is installed at the top of the inner side of the workbench and used for moving to a spraying position and spraying rust-proof oil, and the automatic spraying module is used for spraying rust-proof oil. The station switching module is installed at the bottom of the inner side of the workbench, the measuring tool clamping module is installed on the station switching module, the measuring tool clamping module is used for clamping hard tools, the station switching module 2 drives the measuring tool clamping module 1 to rotate, and then automatic station switching of the hard tools in the spraying process is achieved. According to the anti-rust spraying device, the anti-rust spraying efficiency and automation degree of the hard tools are greatly improved, the labor intensity of metering personnel is reduced, rapid and accurate clamping of the multi-model and multi-specification hard tools is achieved, the universality of the anti-rust spraying device is improved, the spraying speed is high, the spraying precision is high, the uniformity is good, and the loss of anti-rust oil and the pollution to the environment are reduced.

Description

Technical Field

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

[0002] Hard gauges are easy to operate and have high precision. They are widely used in the field of mechanical precision testing. However, after long-term use, hard gauges are prone to wear and rust on the working surface, resulting in gauge size errors, which directly affect the gauge detection accuracy and cause quality problems for mechanical products. Therefore, hard gauges need to be regularly maintained to ensure their accuracy 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 and their complex appearance and structure, they are currently basically applied with anti-rust oil manually on the working surface of the tools. Not only is the efficiency low and the labor intensity high, but it also causes a large degree of resource waste and environmental pollution. With the continuous increase in production tasks 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. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned prior art, the present invention provides an automatic anti-rust spraying device and method 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 a hard mass tool, the automatic anti-rust spraying device comprises a measuring tool clamping module 1, a station switching module 2, a workbench 3 and an automatic spraying module 4, wherein the automatic spraying module 4 is installed on the inner top of the workbench 3, and is used to move to the spraying position and spray anti-rust oil, the station switching module 2 is installed on the inner bottom of the workbench 3, the measuring tool clamping module 1 is installed on the station switching module 2, the measuring tool clamping module 1 is used to clamp the hard mass, and the station switching module 2 drives the measuring tool clamping module 1 to rotate, thereby realizing automatic station switching of the hard mass tool during the spraying process.

[0007] The workbench 3 is a box-type structure with open sides, including a workbench base 31, a workbench table top 32 and a workbench shell 33. The workbench shell 33 is located above the workbench base 31, and the two are an integrated structure. The workbench shell 33 can prevent the anti-rust oil from splashing during the spraying process. The workbench table top 32 is arranged on the workbench base 31, and a space is left with the upper surface of the workbench base 31; the workbench table top 32 is provided with a coaxial central through hole and an annular groove, which serves as a moving track for the workstation switching module 2 and is also used to collect excess anti-rust oil.

[0008] The station switching module 2 includes a rotary cylinder 21, a rolling bearing 23 and a mounting seat 24. The rotary cylinder 21 is mounted on a workbench base 31, and its output shaft 22 extends upward and passes through the central through hole on the workbench surface 32; the rolling bearing 23 is installed between the output shaft 22 and the central through hole on the workbench surface 32, and is used to support the rotation of the output shaft 22 and prevent the anti-rust oil from dripping downward from the workbench surface 32; the mounting seat 24 is fixedly installed on the top of the output shaft 22 and rotates synchronously, and is used to fix and connect the measuring tool clamping module 1, and a through groove is formed in the middle of the mounting seat 24.

[0009] The measuring tool clamping module 1 includes a clamping mechanism 11, a base plate 12 and a feeding mechanism 13; the base plate 12 is used to support hard quality tools and can limit the spraying area at the same time, and its rear end plate surface is fixedly connected to the side of the through slot opening of the mounting seat 24 in the work station switching module 2, wherein a through hole is formed in the middle, and the front end edge of the bottom of the base plate 12 is set to a slope structure with a circular arc chamfer, and a universal ball 121 is provided on the lower surface of the base plate 12, and the universal ball 121 cooperates with the annular groove provided on the workbench table 32, and is used to support the entire measuring tool clamping module 1 when the work station switching module 2 rotates; the clamping mechanism 11 includes a pneumatic clamp 111, a pneumatic clamp mounting plate 112, a special clamp 113 and a connecting piece 114; the pneumatic clamp 111 is located above the rear end plate surface of the base plate 12, and a pneumatic clamp mounting plate 112 is fixed to its rear end surface, and is mounted on the mounting seat through the pneumatic clamp mounting plate 112 24, which is provided with multiple output shafts extending from the end faces of both sides of the pneumatic clamp 111, and the ends of the output shafts on both sides are fixedly connected to one end of the L-shaped connecting piece 114, and the other ends of the two are opposite to each other, and the ends are fixedly connected with special clamps 113 respectively. The pneumatic clamp 111 adjusts the distance between the two connecting pieces 114 by controlling the extension and contraction of its output shaft, thereby realizing the clamping and loosening of the hard quality tool by the two special clamps 113; the unloading mechanism 13 includes a cylinder 131 and a small push plate 132 threadedly connected to the end of the push rod of the cylinder 131, the cylinder 131 is placed in the through groove of the mounting seat 24, its front end is fixed to the rear side of the rear end plate surface of the bottom plate 12, and its output shaft passes through the through hole; the small push plate 132 is a horizontal inward V-shaped structure to meet the needs of various hard quality tools, the cylinder 131 provides linear motion, driving the small push plate 132 to push the hard quality tool after spraying out of the automatic anti-rust spraying device.

[0010] The automatic spraying module 4 includes a linear motion module 41, a photoelectric detector 43, a mounting plate 44 and a spray gun 45. The linear motion module 41 is mounted on the top of the shell of the workbench, and the mounting plate 44 is mounted on the slide 42 thereon; there are two spray guns 45, which are mounted on the mounting plate 44 with the photoelectric detector 43 and can reciprocate under the drive of the linear motion module 41; when the hard mass tool is in the spraying station, the photoelectric detector 43 detects the specific position of the hard mass tool, and the spray gun 45 automatically sprays anti-rust oil on the working surface of the hard mass tool.

[0011] Furthermore, the rotary cylinder 21 is a three-position rotary cylinder, which can be switched between three angular positions of 0°, 90° and 180°, and is used to adjust the spraying angle of the hard tool and automatically switch between the clamping station, the spraying station and the unloading station.

[0012] Furthermore, the two special clamps 113 adopt a cross structure, with the upper part being a vertical surface, the middle part being designed as a 60° upward V-shaped surface, and the lower part being designed as a horizontal inward V-shaped surface for clamping hard tools of different specifications and shapes.

[0013] Furthermore, a circular arc guide groove extending forward and backward is formed on the bottom surface of the bottom plate 12, which plays a guiding role when the blanking mechanism 13 pushes the plug gauge.

[0014] An automatic anti-rust spraying method for hard tools is implemented based on the automatic anti-rust spraying device, and the automatic anti-rust spraying method comprises the following steps:

[0015] Step 1, gauge clamping. After the automatic anti-rust spraying device receives the gauge spraying instruction, the gauge clamping module 1 reaches the clamping station under the drive of the station switching module 2, and the pneumatic clamp 111 moves to the set position according to the gauge type, placing the hard mass tool between the two special clamps 113, and then the pneumatic clamp 111 closes and clamps the hard mass tool through the special clamp 113.

[0016] Step 2, spraying of measuring tools. After the measuring tools are clamped, the measuring tool clamping module 1 reaches the spraying station under the drive of the station switching module 2, triggering the automatic spraying module 4; the linear motion module 41 drives the spray gun 45 to move above the hard quality tool, and when the photoelectric detector 43 detects the position of the measuring tool working surface, the spray gun 45 is started to spray anti-rust oil; after the spraying of the working surface on this side is completed, the station switching module 2 is rotated to another angle, the unsprayed working surface is rotated to the spraying position, and the spray gun 45 is started to spray anti-rust oil.

[0017] Step 3, unloading the measuring tool. After all working surfaces of the hard mass tool are sprayed, the measuring tool clamping module 1 reaches the unloading station under the drive of the station switching module 2, the pneumatic clamping jaws 111 open, and the sprayed measuring tool falls onto the bottom plate 12. The cylinder 131 push rod of the unloading mechanism 13 extends, and the measuring tool is pushed out of the anti-rust spraying device through the small push plate 132, thus completing the anti-rust spraying work of the entire hard mass tool.

[0018] Beneficial effects of the present invention:

[0019] 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.

[0020] 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

[0021] Figure 1 It is the overall structural composition diagram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the measuring tool clamping module of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the clamping mechanism in the measuring tool clamping module of the present invention;

[0024] Figure 4 1 is a diagram showing the clamping effect of the measuring tool of the present invention, wherein (a) is a diagram showing the clamping effect of the plug gauge, and (b) is a diagram showing the clamping effect of the ring gauge;

[0025] Figure 5 It is a structural schematic diagram of a special clamp in the clamping mechanism of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the material unloading mechanism in the measuring tool clamping module of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the bottom plate in the measuring tool clamping module of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the station switching module of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the automatic spraying module of the present invention.

[0030] Among them: 1—gauge clamping module; 2—station switching module; 3—workbench; 4—automatic spraying module; 5—plug gauge; 6—ring gauge; 11—clamping mechanism; 12—base plate; 13—feeding mechanism; 21—rotary cylinder; 22—output shaft; 23—rolling bearing; 24—mounting seat; 31—workbench base; 32—workbench table; 33—workbench shell; 41—linear motion module; 42—slide; 43—photoelectric detector; 44—mounting plate; 45—spray gun; 111—pneumatic clamp; 112—pneumatic clamp mounting plate; 113—special fixture; 114—connecting piece; 121—universal ball; 131—cylinder; 132—small push plate. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-9The present invention is described in further detail.

[0032] 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.

[0033] This embodiment provides an automatic anti-rust spraying device for hard tools, which includes a tool clamping module 1, a station switching module 2, a workbench 3 and an automatic spraying module 4. Figure 1 shown.

[0034] The workbench 3 is a box-type structure with open sides, including a workbench base 31, a workbench table top 32 and a workbench shell 33. The workbench shell 33 is located above the workbench base 31, and the two are an integrated structure. The workbench shell 33 can prevent the anti-rust oil from splashing during the spraying process. The workbench table top 32 is arranged on the workbench base 31, and a space is left with the upper surface of the workbench base 31; the workbench table top 32 is provided with a coaxial central through hole and an annular groove, which serves as a moving track for the workstation switching module 2 and is also used to collect excess anti-rust oil.

[0035] like Figure 8 As shown, the station switching module 2 includes a rotary cylinder 21, a rolling bearing 23 and a mounting seat 24. The rotary cylinder 21 is mounted on the workbench base 31, and its output shaft 22 extends upward and passes through the central through hole on the workbench surface 32; the rolling bearing 23 is installed between the output shaft 22 and the central through hole on the workbench surface 32, and is used to support the rotation of the output shaft 22 and prevent the anti-rust oil from dripping downward from the workbench surface 32; the mounting seat 24 is fixedly installed on the top of the output shaft 22 and rotates synchronously, and is used to fix the connecting gauge clamping module 1, and a through groove is formed in the middle of the mounting seat 24. The rotary cylinder 21 is a three-position rotary cylinder, which switches between three angle positions of 0°, 90°, and 180°, and is used to adjust the spraying angle of the hard quality tool and automatically switch between the three positions of the clamping station, the spraying station, and the unloading station.

[0036] like Figure 2 As shown, the measuring tool clamping module 1 includes a clamping mechanism 11, a base plate 12 and a feeding mechanism 13; Figure 7As shown, the bottom plate 12 is used to support hard quality tools and can limit the spraying area at the same time. The rear end plate surface is fixedly connected to the side of the through slot opening of the mounting seat 24 in the station switching module 2, and a through hole is formed in the middle. The front end edge of the bottom of the bottom plate 12 is set to a slope structure with a circular arc chamfer. The lower surface of the bottom plate 12 is provided with a universal ball 121, and the universal ball 121 cooperates with the annular groove provided on the workbench table 32 to support the entire measuring tool clamping module 1 when the station switching module 2 rotates. The bottom surface of the bottom plate 12 is provided with an arc-shaped guide groove extending forward and backward, which plays a guiding role when the blanking mechanism 13 pushes the plug gauge 5; as shown Figure 3 As shown, the clamping mechanism 11 includes a pneumatic clamp 111, a pneumatic clamp mounting plate 112, a special clamp 113 and a connecting piece 114; the pneumatic clamp 111 is located above the rear end plate surface of the base plate 12, and a pneumatic clamp mounting plate 112 is fixed to the rear end surface thereof, and is mounted on the mounting seat 24 through the pneumatic clamp mounting plate 112, and is provided with a plurality of output shafts extending from the end surfaces on both sides of the pneumatic clamp 111, and the ends of the output shafts on both sides are respectively fixedly connected to one end of an L-shaped connecting piece 114, and the other ends of the two are opposite, and the ends are respectively fixedly connected to the special clamps 113, and the pneumatic clamp 111 adjusts the distance between the two connecting pieces 114 by controlling the extension and contraction of its output shaft, thereby realizing the clamping and loosening of the hard tool by the two special clamps 113; as shown Figure 5 As shown, the two special clamps 113 adopt a cross structure, the upper part is a vertical surface, and the middle part is designed as a 60° upward V-shaped surface, which is suitable for clamping the plug gauge 5 with a handle, such as Figure 4 As shown in (a), the lower part is designed as a horizontal inward V-shaped surface for clamping the ring gauge 6. Figure 4 As shown in (b); Figure 6 As shown, the unloading mechanism 13 includes a cylinder 131 and a small push plate 132 threadedly connected to the end of the push rod of the cylinder 131. The cylinder 131 is placed in the through groove of the mounting seat 24, and its front end is fixed to the rear side of the rear end plate surface of the base plate 12, and its output shaft passes through the through hole; the small push plate 132 is a horizontal inward V-shaped structure to meet the needs of various hard tools. The cylinder 131 provides linear motion to drive the small push plate 132 to push the hard tools after spraying out of the automatic anti-rust spraying device.

[0037] like Fig. 9As shown, the automatic spraying module 4 includes a linear motion module 41, a photoelectric detector 43, a mounting plate 44 and a spray gun 45. The linear motion module 41 is mounted on the top of the shell of the workbench, and the mounting plate 44 is mounted on the slide 42 thereon; there are two spray guns 45, which are mounted on the mounting plate 44 with the photoelectric detector 43 and can reciprocate under the drive of the linear motion module 41; when the hard mass tool is in the spraying station, the photoelectric detector 43 detects the specific position of the hard mass tool, and the spray gun 45 automatically sprays anti-rust oil on the working surface of the hard mass tool.

[0038] An automatic anti-rust spraying method for hard tools is implemented based on the automatic anti-rust spraying device, and the automatic anti-rust spraying method comprises the following steps:

[0039] Step 1, gauge clamping. After the automatic anti-rust spraying device receives the gauge spraying instruction, the gauge clamping module 1 reaches the clamping station under the drive of the station switching module 2, and the pneumatic clamp 111 moves to the set position according to the gauge type, placing the hard mass tool between the two special clamps 113, and then the pneumatic clamp 111 closes and clamps the hard mass tool through the special clamp 113.

[0040] Step 2, spraying of measuring tools. After the measuring tools are clamped, the measuring tool clamping module 1 reaches the spraying station under the drive of the station switching module 2, triggering the automatic spraying module 4; the linear motion module 41 drives the spray gun 45 to move above the hard quality tool, and when the photoelectric detector 43 detects the position of the measuring tool working surface, the spray gun 45 is started to spray anti-rust oil; after the spraying of the working surface on this side is completed, the station switching module 2 is rotated to another angle, the unsprayed working surface is rotated to the spraying position, and the spray gun 45 is started to spray anti-rust oil.

[0041] Step 3, unloading the measuring tool. After all working surfaces of the hard mass tool are sprayed, the measuring tool clamping module 1 reaches the unloading station under the drive of the station switching module 2, the pneumatic clamping jaws 111 open, and the sprayed measuring tool falls onto the bottom plate 12. The cylinder 131 push rod of the unloading mechanism 13 extends, and the measuring tool is pushed out of the anti-rust spraying device through the small push plate 132, thus completing the anti-rust spraying work of the entire hard mass tool.

[0042] The above-described embodiments merely express the implementation methods of the present invention, but they should not be understood as limiting the scope of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An automatic anti-rust spraying device for hard tools, It is characterized in that The automatic anti-rust spraying device comprises a measuring tool clamping module (1), a station switching module (2), a workbench (3) and an automatic spraying module (4), wherein the automatic spraying module (4) is mounted on the inner top of the workbench (3) and is used to move to a spraying position and spray anti-rust oil, the station switching module (2) is mounted on the inner bottom of the workbench (3), the measuring tool clamping module (1) is mounted on the station switching module (2), the measuring tool clamping module (1) is used to clamp a hard mass, and the station switching module (2) drives the measuring tool clamping module (1) to rotate, thereby realizing automatic station switching of the hard mass tool during the spraying process.

2. The automatic anti-rust spraying device for hard tools according to claim 1, It is characterized in that The automatic anti-rust spraying device is specifically: The workbench (3) is a box-type structure with two sides open, comprising a workbench base (31), a workbench table top (32) and a workbench shell (33), wherein the workbench shell (33) is located above the workbench base (31), and the workbench table top (32) is arranged on the workbench base (31) and leaves a space with the upper surface of the workbench base (31); a central through hole and an annular groove are arranged on the workbench table top (32), and the annular groove serves as a motion track for the workstation switching module (2) and is also used to collect excess anti-rust oil; The workstation switching module (2) comprises a rotary cylinder (21), a rolling bearing (23) and a mounting seat (24); the rotary cylinder (21) is mounted on a workbench base (31), and its output shaft (22) passes upward through a central through hole on a workbench surface (32); the rolling bearing (23) is mounted between the output shaft (22) and the central through hole on the workbench surface (32); the mounting seat (24) is fixedly mounted on the top of the output shaft (22) and rotates synchronously, and a through groove is formed in the middle thereof; The measuring tool clamping module (1) comprises a clamping mechanism (11), a base plate (12) and a feeding mechanism (13); the base plate (12) is used to support a hard quality tool, and its rear end plate surface is fixedly connected to the side of the through slot opening of the mounting seat (24) in the station switching module (2), wherein a through hole is formed; the clamping mechanism (11) comprises a pneumatic clamp (111), a pneumatic clamp mounting plate (112), a special clamp (113) and a connecting piece (114); the pneumatic clamp (111) is located above the rear end plate surface of the base plate (12), and the pneumatic clamp mounting plate (112) is fixed to the rear end surface, and is mounted on the mounting seat (24) through the pneumatic clamp mounting plate (112), and is provided with a plurality of output shaft divisions. The pneumatic clamp (111) extends from the end faces on both sides of the pneumatic clamp (111), and the ends of the output shafts on both sides are fixedly connected to one end of the L-shaped connecting piece (114), and the other ends of the two are opposite to each other. The ends are fixedly connected to special clamps (113), and the pneumatic clamp (111) adjusts the distance between the two connecting pieces (114) by controlling the extension and contraction of its output shaft, thereby achieving the clamping and loosening of the hard mass tool by the two special clamps (113); the unloading mechanism (13) comprises a cylinder (131) and a small push plate (132) threadedly connected to the end of the push rod of the cylinder (131), the cylinder (131) is placed in the through groove of the mounting seat (24), the front end of the cylinder (131) is fixed to the rear side of the rear end plate of the bottom plate (12), and the output shaft thereof passes through the through hole; The automatic spraying module (4) comprises a linear motion module (41), a photoelectric detector (43), a mounting plate (44) and a spray gun (45); the linear motion module (41) is mounted on the top of a shell of a workbench, and a mounting plate (44) is mounted on the slide (42) thereon; there are two spray guns (45), which are mounted on the mounting plate (44) together with the photoelectric detector (43) and can reciprocate under the drive of the linear motion module (41); when the hard mass tool is in the spraying station, the photoelectric detector (43) detects the specific position of the hard mass tool, and the spray gun (45) automatically sprays anti-rust oil onto the working surface of the hard mass tool.

3. The automatic anti-rust spraying device for hard tools according to claim 2, It is characterized in that The workbench surface (32) is also provided with an annular groove coaxial with the central through hole on the workbench surface (32), and the lower surface of the base plate (12) is provided with a universal ball 121, which cooperates with the annular groove to support the entire measuring tool clamping module (1) when the workstation switching module (2) rotates.

4. The automatic anti-rust spraying device for hard tools according to claim 2, It is characterized in that The front edge of the bottom surface of the bottom plate (12) is configured as a slope structure with a circular chamfer.

5. The automatic anti-rust spraying device for hard tools according to claim 2, It is characterized in that The small push plate (132) is a horizontal inward V-shaped structure, which meets the needs of various hard tools.

6. The automatic anti-rust spraying device for hard tools according to claim 2, It is characterized in that The rotary cylinder (21) is a three-position rotary cylinder, which is used to adjust the spraying angle of the hard mass tool and automatically switch between different work positions.

7. The automatic anti-rust spraying device for hard tools according to claim 2, It is characterized in that The two special clamps (113) adopt a cross structure, the upper part is a vertical profile, the middle part is designed as a 60° upward V-shaped surface, and the lower part is designed as a horizontal inward V-shaped surface, which is used to clamp hard tools of different specifications and shapes.

8. The automatic anti-rust spraying device for hard tools according to claim 2, It is characterized in that The bottom surface of the bottom plate (12) is provided with an arc-shaped guide groove extending forward and backward, which is used to guide the plug gauge when the material discharge mechanism (13) pushes the plug gauge.

9. An automatic anti-rust spraying method for hard tools, implemented based on the automatic anti-rust spraying device according to any one of claims 1 to 8, It is characterized in that The automatic anti-rust spraying method comprises the following steps: Step 1, measuring tool clamping; Step 2, measuring tool spraying; Step 3, cutting the material with measuring tool.

10. The automatic anti-rust spraying method for hard tools according to claim 9, It is characterized in that The specific steps of the automatic anti-rust spraying method are: Step 1, after the automatic anti-rust spraying device receives the measuring tool spraying instruction, the measuring tool clamping module (1) reaches the clamping station under the drive of the station switching module (2), and the pneumatic clamp (111) moves to the set position according to the type of the measuring tool, and places the hard mass tool between two special clamps (113), and then the pneumatic clamp (111) closes and clamps the hard mass tool through the special clamp (113); Step 2, after the measuring tool is clamped, the measuring tool clamping module (1) reaches the spraying station under the drive of the station switching module (2), triggering the automatic spraying module (4); the linear motion module (41) drives the spray gun (45) to move to the top of the hard mass tool, and when the photoelectric detector (43) detects the position of the measuring tool working surface, the spray gun (45) is started to spray the anti-rust oil; after the spraying of the working surface on this side is completed, the station switching module (2) is rotated to another angle, the unsprayed working surface is rotated to the spraying position, and the spray gun (45) is started to spray the anti-rust oil; Step 3, after all working surfaces of the hard mass tool are completely sprayed, the measuring tool clamping module (1) reaches the unloading station under the drive of the station switching module (2), the pneumatic clamping jaws (111) open, and the sprayed measuring tool falls onto the bottom plate (12), and the cylinder (131) push rod of the unloading mechanism (13) extends, and the measuring tool is pushed out of the anti-rust spraying device through the small push plate (132), thereby completing the anti-rust spraying work of the entire hard mass tool.

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