Conveying device for metal part machining

Abstract

The invention relates to the technical field of part machining, in particular to a conveying device for metal part machining, which comprises a treatment box, a spraying frame is movably mounted in the treatment box, the spraying frame can move longitudinally and transversely in the treatment box, a fixing ring is arranged on the spraying frame, an exhaust fan for active exhaust is arranged at the top of the treatment box, and a conveying belt is arranged at the bottom of the treatment box. The exhaust fan is coaxially provided with a cam for shifting the fixing ring, and the cam is driven to circularly shift the fixing ring when the exhaust fan rotates to exhaust, so that the position of the spraying frame in the treatment box is circularly adjusted; and the conveying assembly comprises a fixing sleeve which is arranged in the treatment box and located below the spraying frame, and a plurality of sets of rotating rollers used for conveying workpieces are rotationally installed on the fixing sleeve. According to the cooling device, cooling liquid can be fully sprayed on a workpiece subjected to heat treatment, the situation of insufficient spraying caused by gaps between the spray heads is prevented, the workpiece is rapidly cooled, and the cooling efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of parts processing, and in particular to a conveying device for metal parts processing. Background Art

[0002] The conveying device for metal parts processing is a device used to convey parts during the metal parts processing process and transport them to different workstations for multiple processing.

[0003] Among them, fasteners are also one of the metal parts. Fasteners are a general term for a type of mechanical parts used to fasten two or more parts (or components) into a whole. It is one of the most widely used basic mechanical parts, with a wide variety of specifications, different performances and uses, and a high degree of standardization and serialization. Fasteners are threaded after cold heading, and then they are mostly improved through heat treatment. During the heat treatment process, the heated fasteners need to be cooled. In the prior art, for example, the patent with application number CN202321196051.7 discloses a fastener production cooling and conveying device, which mostly uses a fixed nozzle to spray liquid to cool the fasteners.

[0004] In the above technical solution, since the nozzle is fixedly arranged, the cooling liquid cannot be fully sprayed onto the fastener after the heat treatment, thereby reducing the cooling efficiency of the fastener. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a conveying device for metal parts processing, which can effectively solve the problems of the prior art in which the nozzle is fixedly set, the cooling liquid is easily unevenly sprayed, and the cooling efficiency is low.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a conveying device for metal parts processing, comprising a processing box, a spray rack movably installed in the processing box, the spray rack being able to move longitudinally and transversely in the processing box, a fixing ring being provided on the spray rack, an exhaust fan for active exhaust being provided on the top of the processing box, and a cam for moving the fixing ring being coaxially installed on the exhaust fan, the cam being driven to cyclically move the fixing ring when the exhaust fan rotates to exhaust, and then the position of the spray rack in the processing box is cyclically adjusted; The conveying assembly comprises a fixed sleeve arranged in the processing box and located below the spray rack, and a plurality of groups of rollers for conveying workpieces are rotatably mounted on the fixed sleeve.

[0007] Furthermore, a limiting groove is provided on the inner wall of the processing box, and a fixing sleeve is correspondingly provided on the side of the spray rack. A guide column is slidably installed on the fixing sleeve, and the guide column is slidably arranged on the processing box and extends into the limiting groove.

[0008] Furthermore, the limiting grooves are provided in N groups and are distributed on the four side walls of the processing box, the number of the fixing sleeves and the guide pillars corresponds to the limiting grooves, and N≥4.

[0009] Furthermore, the cam is provided with a gear ring and a driven gear that are meshed with each other, a driving rod coaxially connected to the exhaust fan is rotatably mounted on the cam, and the driving rod is provided with a driving gear that is meshed with the driven gear, and the diameter ratio of the driving gear and the driven gear is 1:10.

[0010] Furthermore, a lever is provided on the fixed sleeve on one side of the spray rack, and a reciprocating plate is slidably installed on the side of the fixed rack close to the lever, a guide plate is provided on the reciprocating plate, and a guide groove is provided on the guide plate, and the lever extends into the guide groove. When the spray rack moves toward the side where the lever is provided, the lever slides in the guide groove and drives the reciprocating plate to move horizontally.

[0011] Furthermore, a ratchet wheel is provided on one side of the rotating roller close to the reciprocating plate, and a pawl cooperating with the ratchet wheel is provided on the reciprocating plate, which pushes the ratchet wheel to rotate when the reciprocating plate moves laterally, thereby conveying the workpiece on the rotating roller.

[0012] Furthermore, the rotating roller is provided with a plurality of groups of equally spaced steel wire brushes, and each group of steel wire brushes is provided with a plurality of steel wire brushes distributed in a circular array on the rotating roller.

[0013] Furthermore, the wire brushes on adjacent rotating rollers are staggered.

[0014] Furthermore, the shifting rod is rotatably arranged on the fixing sleeve.

[0015] Beneficial Effects Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: 1. The workpiece is cooled by spraying cooling liquid onto the workpiece through the spray rack. The hot steam generated by the cooling is actively discharged through the exhaust fan and recovered and processed through external equipment. While the exhaust fan is discharging the gas, the driving gear, the driven gear and the gear ring are cooperated to continuously rotate the cam to continuously move the fixing ring, cooperate with the fixing sleeve on the side of the spray rack, the guide column and the limit groove on the inner wall of the processing box, so as to realize the longitudinal and lateral circulation of the spray rack, fully spray the coolant on the workpiece after the heat treatment, prevent the gap between the nozzles from causing insufficient spraying, and quickly cool it to improve the cooling efficiency; Second, by constantly moving the spray rack and displacing the spray rack in the longitudinal direction, that is, when the spray rack is close to the reciprocating plate and away from the reciprocating plate, the fixed sleeve will drive the lever to move and cooperate with the guide plate on the reciprocating plate, and then the reciprocating plate will be driven to move horizontally, that is, the reciprocating plate moves back and forth between the feed end and the discharge end, and the reciprocating reciprocating plate will drive the pawl to constantly move the ratchet wheel, thereby realizing the continuous rotation of the roller, and the wire brushes arranged on the roller cooperate with each other to move the workpiece, because the carbon element in the fastener material may react with the oxygen in the air at high temperature to form carbon slag, and the residue or impurities in the heat treatment equipment may also react with the surface of the fastener at high temperature to form a slag layer, when the roller rotates, the wire brush can move the fastener while cleaning the slag layer on the surface of the heat-treated workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection between the spray rack and the processing box of the present invention; Figure 3 It is a partial cross-sectional view of the present invention; Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle; Figure 5 For the present invention Figure 3 The enlarged view of point B in the middle; Figure 6 It is a schematic diagram of the connection between the fixing ring and the cam on the spray frame of the present invention; Figure 7 It is a schematic structural diagram of adjacent rollers on the fixed frame of the present invention.

[0018] Figure numerals: 1. treatment box; 101. limit groove; 11. exhaust fan; 12. spray rack; 121. fixed sleeve; 1211. lever; 122. guide column; 13. fixed ring; 14. cam; 141. gear ring; 142. driven gear; 15. driving rod; 151. driving gear; 16. reciprocating plate; 161. guide plate; 1601. guide groove; 162. pawl; 2. conveying assembly; 21. fixed frame; 22. roller; 221. wire brush; 222. ratchet. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] The present invention will be further described below with reference to embodiments.

[0021] Referring to Figure 1-7 , a conveying device for processing metal parts includes a processing box 1. The processing box 1 is a rectangular box body with openings on both sides. One side is the feeding end for adding workpieces after heat treatment, and the other side is the discharging end for discharging cooled workpieces. A conical cover is provided at the top of the processing box 1 for guiding hot air to discharge. A spray rack 12 is movably installed in the processing box 1, and the spray rack 12 can move longitudinally and transversely in the processing box 1.

[0022] Specifically, a limiting groove 101 is provided on the inner wall of the processing box 1. A fixing sleeve 121 is correspondingly provided on the side surface of the spray rack 12. A guide post 122 is slidably installed on the fixing sleeve 121, and the guide post 122 is slidably arranged on the processing box 1 and extends into the limiting groove 101. A limiting member is provided between the guide post 122 and the processing box 1 to prevent the guide post 122 from detaching from the processing box 1. When the spray rack 12 moves transversely, the guide post 122 on the side of the non-inlet / outlet end slides in the limiting groove 101 on the processing box 1, while the guide post 122 on the side of the inlet / outlet end extends into the fixing sleeve 121. Conversely, when the spray rack 12 moves longitudinally, the guide post 122 on the side of the non-inlet / outlet end extends into the fixing sleeve 121, while the guide post 122 on the side of the inlet / outlet end slides in the limiting groove 101 on the processing box 1.

[0023] Furthermore, N groups of limiting grooves 101 are provided on the processing box 1 and are distributed on the four side walls of the processing box 1. The number of fixing sleeves 121 and guide posts 122 corresponds to that of the limiting grooves 101, and N≥4. The specific number of the limiting grooves 101 is specifically set according to the length of the processing box 1. For example, two or three groups are provided on both sides of the non-inlet / outlet end of the processing box 1 to improve the stability of the spray rack 12 during transverse movement. The specific set number depends on the specific situation and is not limited here.

[0024] A fixing ring 13 is provided on the spray rack 12, and an exhaust fan 11 for active exhaust is provided on the top of the processing box 1. A driving source for driving the exhaust fan 11 to rotate is provided on the processing box 1, such as a motor, etc., which is not limited here, as long as it is a power device that can drive the exhaust fan 11 to rotate and exhaust. A cam 14 for toggling the fixing ring 13 is coaxially installed on the exhaust fan 11. Both sides of the long radius of the cam 14 are in contact with the inner wall of the fixing ring 13. When the cam 14 rotates, the fixing ring 13 is toggled to drive the spray rack 12 to move longitudinally and transversely. The fixing sleeve 121 arranged on the side of the spray rack 12 cooperates with the guide column 122 to keep the spray rack 12 stable. A plurality of nozzles are arranged at the bottom of the spray rack 12. The spray direction of the nozzles is toward the workpiece. When the exhaust fan 11 rotates to exhaust, it drives the cam 14 to cyclically turn the fixing ring 13, thereby cyclically adjusting the position of the spray rack 12 in the processing box 1, further preventing the nozzle setting gap from affecting the spraying range of the cooling liquid, and more fully spraying the cooling liquid to the workpiece, so that all parts of the workpiece can be fully in contact with the cooling liquid and cooled.

[0025] On the other hand, a gear ring 141 and a driven gear 142 that are meshed with each other are provided in the cam 14. A driving rod 15 that is coaxially connected to the exhaust fan 11 is rotatably installed on the cam 14, and a driving gear 151 that is meshed with the driven gear 142 is provided on the driving rod 15. The diameter ratio of the driving gear 151 and the driven gear 142 is 1:10. Since the rotation speed of the industrial exhaust fan is 1000-3000 revolutions per minute, in order to prevent the spray rack 12 from swinging too frequently, the gear ring 141, the driven gears 142 and 152 are provided to reduce the swing speed of the spray rack 12 to protect it.

[0026] In the above technical scheme, the workpiece is cooled by spraying cooling liquid onto the workpiece through the spray rack 12, and the hot vapor generated by the cooling is actively discharged through the exhaust fan 11 and recovered and processed by external equipment. While the exhaust fan 11 discharges the gas, the cam 14 is continuously rotated through the cooperation of the driving gear 151, the driven gear 142 and the ring gear 141 to continuously move the fixing ring 13, and cooperate with the fixing sleeve 121, the guide column 122 on the side of the spray rack 12 and the limiting groove 101 on the inner wall of the processing box 1, so as to realize the longitudinal and lateral circulation of the spray rack 12, fully spray the coolant on the workpiece after the heat treatment, prevent the gap between the nozzles from causing insufficient spraying, and cool it quickly to improve the cooling efficiency.

[0027] The conveying assembly 2 includes a fixed sleeve 121 arranged in the processing box 1 and located below the spray rack 12. A plurality of groups of rollers 22 for conveying workpieces are rotatably mounted on the fixed sleeve 121. The workpieces are conveyed from the entry end to the exit end through the cooperation of the plurality of groups of rollers 22.

[0028] Among them, a lever 1211 is provided on the fixed sleeve 121 on one side of the spray rack 12, and a reciprocating plate 16 is slidably installed on the side of the fixed rack 21 close to the lever 1211, the sliding direction of the reciprocating plate 16 is toward the feeding end and the outlet end, a guide plate 161 is provided on the reciprocating plate 16, and a guide groove 1601 is provided on the guide plate 161, and the lever 1211 extends into the guide groove 1601. When the spray rack 12 moves toward the side with the lever 1211, the lever 1211 slides in the guide groove 1601 and drives the reciprocating plate 16 to move horizontally. At this time, the reciprocating plate 16 moves toward the outlet end. When the spray rack 12 moves toward the side away from the lever 1211, the lever 1211 slides in the guide groove 1601 and drives the reciprocating plate 16 to move in the direction. At this time, the reciprocating plate 16 moves toward the feeding end.

[0029] In addition, a ratchet 222 is provided on the side of the roller 22 close to the reciprocating plate 16, and a pawl 162 cooperating with the ratchet 222 is provided on the reciprocating plate 16. A torsion spring is provided between the pawl 162 and the reciprocating plate 16, and the torsion spring is used to always push the pawl 162 against the ratchet 222, and push the ratchet 222 to rotate when the reciprocating plate 16 moves laterally and toward the discharge end, thereby conveying the workpiece on the roller 22; when the reciprocating plate 16 moves laterally and toward the feed end, the reciprocating plate 16 drives the pawl 162 to reset, and at this time, the ratchet 222 will not be pushed to rotate. Therefore, as the reciprocating plate 16 circulates between the feed end and the discharge end, it continuously drives multiple groups of rollers 22 to rotate to convey the workpiece.

[0030] In addition, the roller 22 is provided with a plurality of groups of equidistantly distributed wire brushes 221, and each group of wire brushes 221 is provided with a plurality of wire brushes 221 and distributed in a circular array on the roller 22. When the roller 22 rotates, the wire brushes 221 are moved to realize the movement of the workpiece between adjacent rollers 22. At the same time, the wire brushes 221 on adjacent rollers 22 are staggered to prevent interference between adjacent wire brushes 221. The wire brushes 221 can also be used to clean the workpiece while following the rotation of the roller 22.

[0031] It is worth noting that the lever 1211 is rotatably set on the fixed sleeve 121. When the lever 1211 rotatably set on the fixed sleeve 121 is relatively displaced with the guide plate 161, the sliding friction between the lever 1211 and the guide groove 1601 can be replaced by rotational friction, so as to reduce the overall friction coefficient, reduce wear and improve the smoothness of the structural connection.

[0032] In the above technical scheme, when the spray rack 12 is constantly moved and the spray rack 12 is displaced in the longitudinal direction, that is, when the spray rack 12 is close to the reciprocating plate 16 and away from the reciprocating plate 16, the fixed sleeve 121 will drive the lever 1211 to move and cooperate with the guide plate 161 on the reciprocating plate 16, and at this time, the reciprocating plate 16 will be continuously driven to move horizontally, that is, the reciprocating plate 16 moves back and forth between the feeding end and the discharging end, and the reciprocating reciprocating plate 16 will drive the pawl 162 to continuously move the ratchet 222, thereby realizing the continuous rotation of the roller 22, and the wire brush 221 arranged on the roller 22 cooperates with each other to move the workpiece. Since the carbon element in the fastener material may react with the oxygen in the air at high temperature to form carbon slag, and the residue or impurities in the heat treatment equipment may also react with the surface of the fastener at high temperature to form a slag layer, when the roller 22 rotates, the wire brush 221 can move the fastener while cleaning the slag layer on the surface of the heat-treated workpiece.

[0033] Working principle: first, the spray rack 12 is filled with cooling liquid, and the cooling liquid is sprayed onto the workpiece to cool the workpiece. The hot steam generated by the cooling is actively discharged through the exhaust fan 11, and the hot steam is recovered and processed through external equipment. While the exhaust fan 11 is discharging the gas, the driving gear 151 rotates with the exhaust fan 11 and drives the driven gear 142 and the ring gear 141 to continuously rotate the cam 14. The continuously rotating cam 14 will continuously move the fixing ring 13, and cooperate with the fixing sleeve 121, the guide column 122 on the side of the spray rack 12 and the limiting groove 101 on the inner wall of the processing box 1 to realize the longitudinal and lateral circulation of the spray rack 12, and fully spray the coolant on the workpiece after the heat treatment, so as to prevent the gap between the nozzles from causing insufficient spraying, and quickly cool it to improve the cooling efficiency; during the continuous movement of the spray rack 12, and When the spray rack 12 is displaced longitudinally, that is, when the spray rack 12 is close to the reciprocating plate 16 and away from the reciprocating plate 16, the fixed sleeve 121 will drive the lever 1211 to move and cooperate with the guide plate 161 on the reciprocating plate 16, and at this time, it will continuously reciprocate and drive the reciprocating plate 16 to move horizontally, that is, the reciprocating plate 16 moves back and forth between the feeding end and the discharging end. When the reciprocating plate 16 moves toward the discharging end, it will drive the pawl 162 to push the ratchet 222, thereby driving the roller 22 to rotate. When the reciprocating plate 16 moves toward the feeding end, it will pull the pawl 162 to reset. At this time, the pawl 162 cannot move the ratchet 222. This reciprocating action is used to realize the continuous rotation of the roller 22. The wire brushes 221 arranged on the roller 22 cooperate with each other to move the workpiece. When the roller 22 rotates, the wire brush 221 can move the fastener while cleaning the slag layer on the surface of the heat-treated workpiece.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A conveying device for metal parts processing, characterized in that: include: A processing box (1), wherein a spray rack (12) is movably installed in the processing box (1), wherein the spray rack (12) is capable of moving longitudinally and transversely in the processing box (1), wherein a fixing ring (13) is provided on the spray rack (12), wherein an exhaust fan (11) for active exhaust is provided on the top of the processing box (1), and a cam (14) for moving the fixing ring (13) is coaxially installed on the exhaust fan (11), wherein when the exhaust fan (11) rotates to exhaust air, the cam (14) is driven to cyclically move the fixing ring (13), thereby cyclically adjusting the position of the spray rack (12) in the processing box (1); A conveying assembly (2), the conveying assembly (2) comprising a fixed sleeve (121) arranged in a processing box (1) and located below a spray rack (12), wherein a plurality of groups of rollers (22) for conveying workpieces are rotatably mounted on the fixed sleeve (121).

2. A conveying device for metal parts processing according to claim 1, characterized in that: The inner wall of the processing box (1) is provided with a limiting groove (101), and the side of the spray frame (12) is correspondingly provided with a fixing sleeve (121), and a guide column (122) is slidably mounted on the fixing sleeve (121), and the guide column (122) is slidably arranged on the processing box (1) and extends into the limiting groove (101).

3. A conveying device for metal parts processing according to claim 2, characterized in that: The limiting grooves (101) are provided in N groups and are distributed on the four side walls of the processing box (1); the number of the fixing sleeves (121) and the guide pillars (122) corresponds to the limiting grooves (101), and N is greater than or equal to 4.

4. A conveying device for metal parts processing according to claim 1, characterized in that: The cam (14) is provided with a gear ring (141) and a driven gear (142) that are meshed with each other. A driving rod (15) that is coaxially connected to the exhaust fan (11) is rotatably mounted on the cam (14). The driving rod (15) is provided with a driving gear (151) that is meshed with the driven gear (142). The diameter ratio of the driving gear (151) to the driven gear (142) is 1:

10.

5. A conveying device for metal parts processing according to claim 1, characterized in that: A lever (1211) is provided on the fixed sleeve (121) on one side of the spray rack (12), and a reciprocating plate (16) is slidably mounted on a side of the fixed rack (21) close to the lever (1211), the reciprocating plate (16) is provided with a guide plate (161), and the guide plate (161) is provided with a guide groove (1601), the lever (1211) extends into the guide groove (1601), and when the spray rack (12) moves toward the side provided with the lever (1211), the lever (1211) slides in the guide groove (1601) and drives the reciprocating plate (16) to move horizontally.

6. A conveying device for metal parts processing according to claim 5, characterized in that: A ratchet wheel (222) is provided on one side of the rotating roller (22) close to the reciprocating plate (16), and a ratchet pawl (162) cooperating with the ratchet wheel (222) is provided on the reciprocating plate (16). When the reciprocating plate (16) moves laterally, the ratchet wheel (222) is pushed to rotate, thereby conveying the workpiece on the rotating roller (22).

7. A conveying device for metal parts processing according to claim 1, characterized in that: The rotating roller (22) is provided with a plurality of groups of equally spaced steel wire brushes (221), and each group of steel wire brushes (221) is provided with a plurality of steel wire brushes (221) distributed in a circular array on the rotating roller (22).

8. A conveying device for metal parts processing according to claim 1, characterized in that: The wire brushes (221) on adjacent rotating rollers (22) are arranged in a staggered manner.

9. A conveying device for metal parts processing according to claim 5, characterized in that: The shifting rod (1211) is rotatably disposed on the fixing sleeve (121).

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