Salt spray test device for fastening bolt production

Abstract

The invention discloses a salt spray test device for fastening bolt production, which comprises a base, and a test box is mounted at the top of one side of the base. According to the invention, the driving mechanism drives the main shaft to rotate, the main shaft drives the first workpiece disc, the second workpiece disc and the third workpiece disc to integrally rotate, the main shaft drives the rotating wheel to rotate through the transmission mechanism when rotating, and the rotating wheel can drive the lifting frame to lift back and forth through matching of the eccentrically arranged transmission rod and the transmission groove. Salt mist is evenly sprayed to annularly-distributed bolts through an annular pipe, meanwhile, a lifting frame drives the annular pipe to ascend and descend in a reciprocating mode, the annular pipe is evenly aligned with the bolts on the first workpiece disc, the second workpiece disc and the third workpiece disc to spray mist, the contact effect of the salt mist and the bolts is effectively improved, the salt mist is evenly in contact with the multiple sets of bolts, and the salt mist spraying efficiency is improved. Not only is the accuracy of the bolt salt spray experiment improved, but also the efficiency of the bolt salt spray experiment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of salt spray testing, in particular to a salt spray testing device for fastening bolt production. Background Art

[0002] A bolt is a mechanical part consisting of a head and a screw (a cylinder with external threads). It is a cylindrical threaded fastener equipped with a nut. The bolt and the nut are used to fasten two parts with through holes. In the production process of fastening bolts, a salt spray test device is required to test the corrosion resistance of the fastening bolts.

[0003] When the existing salt spray test device for fastening bolt production is used, when multiple bolts are tested at the same time, the salt spray nozzle is set on one side of the test box, and the salt spray particles are heavy, so the salt spray will quickly settle to the bottom of the test box and liquefy when it is sprayed, so that the salt spray cannot fully contact with the multiple bolts. The contact between each bolt and the salt spray is uneven, which will cause the detection environment of each bolt to be different, resulting in errors in the experimental results, and making the salt spray test less efficient and inconvenient to use. Therefore, we propose a salt spray test device for fastening bolt production to solve the problems raised. Summary of the invention

[0004] The purpose of the present invention is to provide a salt spray test device for fastening bolt production, which can achieve the goal that when the bolts are subjected to the salt spray test, the salt spray is evenly sprayed to the bolts distributed in an annular manner through the annular tube, and at the same time, the lifting frame drives the annular tube to lift and lower back and forth, so that the annular tube is evenly aligned with the bolts on the first workpiece disk, the second workpiece disk and the third workpiece disk for spraying, effectively improving the contact effect between the salt spray and the bolts, making the salt spray evenly contact with multiple groups of bolts, not only providing the accuracy of the salt spray test on the bolts, but also improving the efficiency of the salt spray test on the bolts.

[0005] To achieve the above object, the present invention provides the following technical solution: A salt spray test device for fastening bolt production, comprising a base, a test box is installed on the top of one side of the base, and a controller is installed on the top of the side of the base close to the test box, wherein: The middle part of the inner side of the test box is rotatably connected with a spindle, the bottom of the base is provided with a driving mechanism for driving the spindle, the top of the spindle is installed with a first workpiece disk, the bottom of the first workpiece disk is sequentially provided with a second workpiece disk and a third workpiece disk, the middle of the second workpiece disk and the third workpiece disk are penetrated by a spindle groove, the first workpiece disk, the second workpiece disk and the third workpiece disk are fixedly connected by a connecting rod, and the ring sides of the first workpiece disk, the second workpiece disk and the third workpiece disk are equidistantly provided with workpiece grooves; An annular tube is provided inside the test box, and the annular tube sleeve is arranged on the outer sides of the first workpiece disk, the second workpiece disk and the third workpiece disk. Spray holes are equidistantly provided on the inner side of the annular tube. The inner walls at both ends of the test box are symmetrically rotatably connected with rotating wheels. Lifting frames are fixedly connected on both sides of the annular tube. The lifting frames are vertically fixedly connected to the test box. A transmission groove is provided on the side of the lifting frame close to the rotating wheel. A transmission rod is fixedly connected to the side of the rotating wheel corresponding to the transmission groove. When the main shaft rotates, the rotating wheels are driven to rotate synchronously through the transmission mechanism.

[0006] Preferably, the driving mechanism includes a motor, a motor is installed at the bottom of one side of the base, a driving wheel is installed at the shaft end of the motor, a driven wheel is installed at the shaft end of the main shaft located below the base, and the driving wheel and the driven wheel are connected by a transmission belt.

[0007] Preferably, a slot is provided at the top of the spindle, and an insertion rod is fixedly connected to the middle of the bottom end of the first workpiece disk corresponding to the slot.

[0008] Preferably, the insertion rod is in the shape of a rectangular column, and the outer dimensions of the insertion rod match the inner dimensions of the slot.

[0009] Preferably, a guide groove is provided on the inner side of the end of the lifting frame corresponding to the test box, and a guide block is fixedly connected to the end of the lifting frame corresponding to the guide groove.

[0010] Preferably, the transmission rod is arranged on the eccentric side of the rotating wheel, and the outer diameter of the transmission rod is consistent with the inner width of the transmission groove.

[0011] Preferably, the transmission mechanism includes a rotating shaft, and the test box is symmetrically rotatably connected to the rotating shaft at the inner bottom near both sides of the main shaft, the rotating shaft is fixedly connected to a first reversing gear at one end near the main shaft, and the main shaft is fixedly connected to the outer side of the first reversing gear, the ring side of the rotating wheel is equidistantly fixed with transmission teeth, and the rotating shaft is fixedly connected to a transmission gear at one end corresponding to the rotating wheel.

[0012] Preferably, the second reversing gear is meshed with the first reversing gears on both sides, and the transmission gear is meshed with transmission teeth.

[0013] Preferably, a salt liquid tank is installed on the outer side of the test box near the top, an atomizer is connected to the outer side of the test box near the bottom, the atomizer is connected to the annular tube through a connecting hose, and a drain pipe is connected to one end of the test box near the bottom.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The invention provides a method for spraying the bolts with a salt spray test, wherein the bolts are inserted into the workpiece grooves, so that the bolt heads are mounted on the first workpiece disk, the second workpiece disk and the third workpiece disk, and the box cover is closed. Salt spray is sprayed out through spray holes arranged equidistantly on the inner side of the annular tube, and the driving mechanism drives the main shaft to rotate, and the main shaft drives the first workpiece disk, the second workpiece disk and the third workpiece disk to rotate as a whole. When the main shaft rotates, the transmission mechanism drives the rotating wheel to rotate, and the rotating wheel drives the lifting frame to lift and lower back and forth through the eccentrically arranged transmission rod and the transmission groove, so that when the bolts are subjected to the salt spray test, the salt spray is sprayed uniformly to the bolts distributed in an annular manner through the annular tube, and the lifting frame drives the annular tube to lift and lower back and forth, so that the annular tube is uniformly aligned with the bolts on the first workpiece disk, the second workpiece disk and the third workpiece disk to spray, thereby effectively improving the contact effect between the salt spray and the bolts, and making the salt spray uniformly contact with multiple groups of bolts, thereby not only providing the accuracy of the salt spray test on the bolts, but also improving the efficiency of the salt spray test on the bolts.

[0015] According to the present invention, when the main shaft rotates, it drives the second reversing gear to rotate, the second reversing gear drives the first reversing gear to rotate through meshing, the first reversing gear drives the transmission gear to rotate through the rotating shaft, the transmission gear drives the rotating wheel to rotate, the rotating wheel can drive the lifting frame to reciprocate and rise and fall through the eccentrically arranged transmission rod and the transmission groove, and the transmission mechanism is set up, so that the main shaft drives the first workpiece disk, the second workpiece disk and the third workpiece disk to rotate, and can drive the lifting frame to reciprocate and rise and fall at the same time, and when the lifting frame is lifted and lowered, it drives the guide block to move in the guide groove, so as to guide the lifting and lowering of the lifting frame.

[0016] According to the present invention, a plurality of workpiece placement racks consisting of a first workpiece tray, a second workpiece tray and a third workpiece tray are provided. When installing the workpiece placement rack, the first workpiece tray drives the insertion rod to be inserted into the slot. The workpiece placement rack can be quickly disassembled and assembled through the engaging structure formed by the insertion rod and the slot. In addition, through the plurality of workpiece placement racks provided, when the workpiece placement rack is used to perform a salt spray test on the bolts, the bolts on the redundant workpiece placement racks can be replaced, thereby performing continuous tests on multiple batches of bolts, thereby improving experimental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating wheel of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the first workpiece tray of the present invention; Figure 5 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at center A; Figure 6 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0018] In the figure: 1, base; 2, test box; 3, controller; 4, main shaft; 5, motor; 6, driving wheel; 7, driven wheel; 8, transmission belt; 9, first workpiece plate; 10, slot; 11, plug rod; 12, second workpiece plate; 13, third workpiece plate; 14, main shaft slot; 15, connecting rod; 16, workpiece slot; 17, annular tube; 18, spray hole; 19, rotating wheel; 20, lifting frame; 21, guide slot; 22, guide block; 23, transmission slot; 24, transmission rod; 25, rotating shaft; 26, first reversing gear; 27, second reversing gear; 28, transmission teeth; 29, transmission gear; 30, salt solution tank; 31, atomizer; 32, connecting hose; 33, drain pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0020] See also Figures 1 to 6 The present invention provides a technical solution: a salt spray test device for fastening bolt production, comprising a base 1, a test box 2 is installed on the top of one side of the base 1, and a controller 3 is installed on the top of the side of the base 1 close to the test box 2, wherein: The middle part of the inner side of the test box 2 is rotatably connected with a spindle 4, a driving mechanism for driving the spindle 4 is arranged at the bottom of the base 1, a first workpiece disk 9 is installed on the top of the spindle 4, a second workpiece disk 12 and a third workpiece disk 13 are arranged at the bottom of the first workpiece disk 9 in sequence, a spindle groove 14 is penetrated in the middle of the second workpiece disk 12 and the third workpiece disk 13, the first workpiece disk 9, the second workpiece disk 12 and the third workpiece disk 13 are fixedly connected by a connecting rod 15, and workpiece grooves 16 are equidistantly opened on the ring sides of the first workpiece disk 9, the second workpiece disk 12 and the third workpiece disk 13; An annular tube 17 is provided inside the test box 2. The annular tube 17 is sleeved on the outer sides of the first workpiece tray 9, the second workpiece tray 12 and the third workpiece tray 13. Spray holes 18 are equidistantly provided on the inner side of the annular tube 17. Rotating wheels 19 are symmetrically rotatably connected to the inner walls of both ends of the test box 2. Lifting racks 20 are fixedly connected to both sides of the annular tube 17. The lifting racks 20 are vertically fixedly connected to the test box 2. A transmission groove 23 is provided on the side of the lifting rack 20 close to the rotating wheel 19. A transmission rod 24 is fixedly connected to the side of the rotating wheel 19 corresponding to the transmission groove 23. When the main shaft 4 rotates, the rotating wheel 19 is driven to rotate synchronously through the transmission mechanism; When the bolt is subjected to a salt spray test, the bolt is inserted into the workpiece groove 16, so that the bolt head frame is mounted on the first workpiece disk 9, the second workpiece disk 12 and the third workpiece disk 13, and the box cover is closed. The salt spray is sprayed out through the spray holes 18 equidistantly arranged on the inner side of the annular tube 17, and the driving mechanism drives the main shaft 4 to rotate, and the main shaft 4 drives the first workpiece disk 9, the second workpiece disk 12 and the third workpiece disk 13 to rotate as a whole. When the main shaft 4 rotates, the rotating wheel 19 is driven to rotate through the transmission mechanism, and the rotating wheel 19 can drive the lifting frame 20 to reciprocate through the eccentrically arranged transmission rod 24 and the transmission groove 23, so that when the bolt is subjected to the salt spray test, the salt spray is uniformly sprayed to the annularly distributed bolts through the annular tube 17, and the lifting frame 20 drives the annular tube 17 to reciprocate, so that the annular tube 17 is uniformly aligned with the bolts on the first workpiece disk 9, the second workpiece disk 12 and the third workpiece disk 13 for spraying, which effectively improves the contact effect between the salt spray and the bolts, and makes the salt spray and the multiple groups of bolts uniformly contact, which not only provides the accuracy of the salt spray test on the bolts, but also improves the efficiency of the salt spray test on the bolts.

[0021] See also Figures 1 to 6 The driving mechanism includes a motor 5, a motor 5 is installed at the bottom of one side of the base 1, a driving wheel 6 is installed at the shaft end of the motor 5, a driven wheel 7 is installed at the shaft end of the main shaft 4 located below the base 1, and the driving wheel 6 and the driven wheel 7 are connected by a transmission belt 8. The motor 5 drives the driving wheel 6 to rotate, the driving wheel 6 drives the driven wheel 7 to rotate through the transmission belt 8, and the driven wheel 7 drives the main shaft 4 to rotate.

[0022] See also Figures 1 to 6 A slot 10 is provided at the top of the spindle 4, and a plug rod 11 is fixedly connected to the middle part of the bottom end of the first workpiece disk 9 corresponding to the slot 10. The plug rod 11 is a rectangular column, and the outer size of the plug rod 11 coincides with the inner size of the slot 10. There are multiple groups of workpiece placement racks composed of the first workpiece disk 9, the second workpiece disk 12 and the third workpiece disk 13. When installing the workpiece placement rack, the first workpiece disk 9 drives the plug rod 11 to be inserted into the slot 10. Through the locking structure formed by the plug rod 11 and the slot 10, the workpiece placement rack can be quickly disassembled and assembled, and through the multiple groups of workpiece placement racks, when the workpiece placement rack is used to perform a salt spray test on the bolts, the bolts on the redundant workpiece placement rack can be replaced, so that multiple batches of bolts can be continuously tested, thereby improving the experimental efficiency.

[0023] See also Figures 1 to 6 A guide groove 21 is provided on the inner side of the end of the lifting frame 20 of the test box 2 , and a guide block 22 is fixedly connected to the end of the lifting frame 20 corresponding to the guide groove 21 .

[0024] See also Figures 1 to 6 The transmission rod 24 is arranged on the eccentric side of the rotating wheel 19 , and the outer diameter of the transmission rod 24 coincides with the inner width of the transmission groove 23 .

[0025] See also Figures 1 to 6 The transmission mechanism includes a rotating shaft 25. The inner bottom of the test box 2 near the main shaft 4 is symmetrically connected to the rotating shaft 25. The rotating shaft 25 is fixedly connected to one end of the main shaft 4 with a first reversing gear 26. The main shaft 4 is fixedly connected to the outer side of the first reversing gear 26. The second reversing gear 27 is fixedly connected to the ring side of the rotating wheel 19 at an equal distance. The rotating shaft 25 is fixedly connected to one end of the rotating wheel 19 with a transmission gear 29. The second reversing gear 27 is meshed with the first reversing gear 26 on both sides, and the transmission gear 29 is meshed with the transmission gear 28. When the main shaft 4 rotates, the second reversing gear 27 is driven to rotate. The reversing gear 27 drives the first reversing gear 26 to rotate through meshing, and the first reversing gear 26 drives the transmission gear 29 to rotate through the rotating shaft 25, and the transmission gear 29 drives the rotating wheel 19 to rotate. The rotating wheel 19 can drive the lifting frame 20 to reciprocate and rise and fall through the eccentrically arranged transmission rod 24 and the transmission groove 23. Through the arranged transmission mechanism, the main shaft 4 drives the first workpiece disk 9, the second workpiece disk 12 and the third workpiece disk 13 to rotate, and can drive the lifting frame 20 to reciprocate and rise and fall. When the lifting frame 20 is lifted or lowered, it drives the guide block 22 to move in the guide groove 21, which can guide the lifting and lowering of the lifting frame 20.

[0026] See also Figures 1 to 6 A salt liquid tank 30 is installed on the outer side of the test box 2 near the top, and an atomizer 31 is connected to the outer side of the test box 2 near the bottom of the salt liquid tank 30. The atomizer 31 is connected to the annular tube 17 through a connecting hose 32, and a drain pipe 33 is connected to one end of the test box 2 near the bottom.

[0027] Working principle: A salt spray test device for fastening bolt production, a workpiece placement rack consisting of a first workpiece disk 9, a second workpiece disk 12 and a third workpiece disk 13 is provided with multiple groups. When installing the workpiece placement rack, the first workpiece disk 9 drives the insertion rod 11 to be inserted into the slot 10. Through the clamping structure formed by the insertion rod 11 and the slot 10, the workpiece placement rack can be quickly disassembled and assembled, and through the multiple groups of workpiece placement racks, when the workpiece placement rack is used to perform a salt spray test on the bolts, the bolts on the redundant workpiece placement racks can be replaced, and then multiple batches of bolts can be continuously tested, thereby improving the test efficiency. When the bolts are subjected to a salt spray test, the bolts are inserted into the workpiece groove 16, so that the bolt heads are mounted on the first workpiece disk 9, the second workpiece disk 12 and the third workpiece disk 13, and the box cover is closed. The atomizer 31 atomizes the salt solution in the salt solution box 30 and transports it to the annular tube 17 through the connecting hose 32, and then sprays it out through the spray holes 18 equidistantly arranged on the inner side of the annular tube 17. At the same time, the motor 5 drives the driving wheel 6 to rotate, and the driving wheel 6 is driven by the transmission belt 8 drives the driven wheel 7 to rotate, the driven wheel 7 drives the main shaft 4 to rotate, the main shaft 4 drives the first workpiece disk 9, the second workpiece disk 12 and the third workpiece disk 13 to rotate as a whole through the insertion rod 11, and the main shaft 4 drives the second reversing gear 27 to rotate when rotating, the second reversing gear 27 drives the first reversing gear 26 to rotate by meshing, the first reversing gear 26 drives the transmission gear 29 to rotate through the rotating shaft 25, and the transmission gear 29 drives the rotating wheel 19 to rotate, and the rotating wheel 19 can drive the lifting frame 20 to reciprocate through the eccentrically arranged transmission rod 24 and the transmission groove 23, so that when the bolts are subjected to the salt spray test, the salt spray is evenly sprayed to the annularly distributed bolts through the annular tube 17, and at the same time, the lifting frame 20 drives the annular tube 17 to reciprocate, so that the annular tube 17 is evenly aligned with the bolts on the first workpiece disk 9, the second workpiece disk 12 and the third workpiece disk 13 for spraying, effectively improving the contact effect of the salt spray and the bolts, so that the salt spray and the multiple groups of bolts are evenly contacted, which not only provides the accuracy of the salt spray test of the bolts, but also improves the efficiency of the salt spray test of the bolts.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A salt spray test device for fastening bolt production, comprising a base (1), characterized in that: A test box (2) is installed on the top of one side of the base (1), and a controller (3) is installed on the top of the side of the base (1) close to the test box (2), wherein: A main shaft (4) is rotatably connected to the middle of the inner side of the test box (2); a driving mechanism for driving the main shaft (4) is arranged at the bottom of the base (1); a first workpiece disk (9) is installed on the top of the main shaft (4); a second workpiece disk (12) and a third workpiece disk (13) are arranged in sequence at the bottom of the first workpiece disk (9); a main shaft groove (14) runs through the middle of the second workpiece disk (12) and the third workpiece disk (13); the first workpiece disk (9), the second workpiece disk (12) and the third workpiece disk (13) are fixedly connected by a connecting rod (15); and workpiece grooves (16) are equidistantly provided on the annular sides of the first workpiece disk (9), the second workpiece disk (12) and the third workpiece disk (13); An annular tube (17) is arranged inside the test box (2), and the annular tube (17) is sleeved on the outer sides of the first workpiece tray (9), the second workpiece tray (12) and the third workpiece tray (13). Spray holes (18) are equidistantly arranged on the inner side of the annular tube (17). Rotating wheels (19) are symmetrically rotatably connected to the inner walls of both ends of the test box (2). Lifting frames (20) are fixedly connected to both sides of the annular tube (17). The lifting frames (20) are vertically fixedly connected to the test box (2). A transmission groove (23) is arranged on the side of the lifting frame (20) close to the rotating wheel (19). A transmission rod (24) is fixedly connected to the side of the rotating wheel (19) corresponding to the transmission groove (23). When the main shaft (4) rotates, the rotating wheel (19) is driven to rotate synchronously through the transmission mechanism.

2. The salt spray test device for fastening bolt production according to claim 1 is characterized in that: The driving mechanism comprises a motor (5), the motor (5) being mounted on the bottom of one side of the base (1), a driving wheel (6) being mounted on the shaft end of the motor (5), a driven wheel (7) being mounted on the shaft end of the main shaft (4) located below the base (1), and the driving wheel (6) and the driven wheel (7) being connected via a transmission belt (8).

3. The salt spray test device for fastening bolt production according to claim 1 is characterized in that: A slot (10) is provided at the top end of the spindle (4), and an insertion rod (11) is fixedly connected to the middle portion of the bottom end of the first workpiece disk (9) corresponding to the slot (10).

4. The salt spray test device for fastening bolt production according to claim 3 is characterized in that: The insertion rod (11) is in the shape of a rectangular column, and the outer dimensions of the insertion rod (11) coincide with the inner dimensions of the slot (10).

5. The salt spray test device for fastening bolt production according to claim 1 is characterized in that: A guide groove (21) is provided on the inner side of the end of the test box (2) corresponding to the lifting frame (20), and a guide block (22) is fixedly connected to the end of the lifting frame (20) corresponding to the guide groove (21).

6. The salt spray test device for fastening bolt production according to claim 1 is characterized in that: The transmission rod (24) is arranged on the eccentric side of the rotating wheel (19), and the outer diameter of the transmission rod (24) matches the inner width of the transmission groove (23).

7. The salt spray test device for fastening bolt production according to claim 1 is characterized in that: The transmission mechanism comprises a rotating shaft (25), the rotating shaft (25) being symmetrically rotatably connected to the inner bottom of the test box (2) close to both sides of the main shaft (4), a first reversing gear (26) being fixedly connected to one end of the rotating shaft (25) close to the main shaft (4), a second reversing gear (27) being fixedly connected to the outer side of the main shaft (4) corresponding to the first reversing gear (26), a transmission tooth (28) being equidistantly fixedly connected to the ring side of the rotating wheel (19), and a transmission gear (29) being fixedly connected to one end of the rotating shaft (25) corresponding to the rotating wheel (19).

8. The salt spray test device for fastening bolt production according to claim 7, characterized in that: The second reversing gear (27) meshes with the first reversing gears (26) on both sides, and the transmission gear (29) meshes with the transmission teeth (28).

9. The salt spray test device for fastening bolt production according to claim 1, characterized in that: A salt liquid tank (30) is installed on the outer side of the test box (2) near the top, and an atomizer (31) is connected to the outer side of the test box (2) near the bottom of the salt liquid tank (30). The atomizer (31) is connected to the annular tube (17) through a connecting hose (32). A drain pipe (33) is connected to one end of the test box (2) near the bottom.

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