Automatic metal heat treatment equipment capable of preventing quenching cracking

Abstract

The invention relates to the technical field of metal heat treatment, in particular to automatic metal heat treatment equipment capable of preventing quenching cracking, which comprises a machine shell, a hydraulic cylinder arranged at the top of the machine shell, a water tank arranged at the top of the machine shell and used for placing workpieces, a primary treatment unit and a cooling unit, the primary treatment unit is arranged at the top of the machine shell and located beside the hydraulic air cylinder. The primary treatment unit comprises a material containing plate and a cleaning frame. The material placing plate is used for bearing a to-be-cleaned workpiece, is arranged at the top of the machine shell and is positioned on one side of the hydraulic air cylinder; the cleaning frame is slidably arranged at the top of the machine shell and connected with the output end of the hydraulic air cylinder, and the cleaning frame is used for bearing workpieces falling off from the top of the material containing plate so that subsequent quenching operation can be carried out conveniently. According to the technical scheme, the primary treatment unit is arranged, so that the cracking problem caused by surface residual grease and an oxidized decarburized layer in the subsequent quenching cooling process of the workpiece can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of metal heat treatment, in particular to an automatic metal heat treatment equipment for preventing quenching cracking. Background Art

[0002] In the field of metal heat treatment, quenching process is a key step to improve the performance of metal workpieces. However, the existing technology faces a significant problem when performing quenching treatment, that is, it is inconvenient to clean the stains and oxidation decarburization layer on the surface of the workpiece. These stains and oxidation layers not only affect the quenching effect, but may also become the cause of quenching cracking.

[0003] Traditionally, workpieces often need to be manually or semi-automatically cleaned before quenching. This process is time-consuming and labor-intensive, and the cleaning effect is limited by the skills and experience of the operator. For workpieces with complex shapes or large sizes, manual cleaning is even more difficult, and it is difficult to ensure thoroughness and uniformity of cleaning. In addition, manual cleaning may cause additional damage to the workpiece surface, affecting the final quality and performance of the workpiece.

[0004] Today, as automated metal heat treatment equipment becomes increasingly popular, although these equipment have achieved a high degree of automation and precise control in heating, quenching and cooling, they are still insufficient in cleaning the workpiece surface. Most of the existing automated quenching equipment focuses on improving the heating speed and quenching accuracy, but lacks effective means for cleaning stains and oxidized decarburized layers on the workpiece surface.

[0005] Chinese Patent Authorization Announcement No. CN118685598B discloses an automated metal heat treatment equipment and method, comprising a bed frame, a base is fixedly installed at the bottom of the bed frame, a slide rail is slidably installed at the bottom of the bed frame, a hydraulic rod is fixedly installed at the bottom of the slide rail, a hook is arranged at the output end of the hydraulic rod, a sensor is arranged on the surface of the bed frame, a sensing module and a control module are arranged inside the sensor, a buffer device is arranged at the bottom of the slide rail, the outer shell is fixedly installed at the bottom of the slide rail, the output end of the hydraulic rod is slidably installed and passes through the bottom of the outer shell, the spring piece is fixedly installed on the circumferential surface of the output end of the hydraulic rod, and the movement of the output end of the hydraulic rod will drive the spring piece to move, so as to prevent the rapid contact between metal and water, which will cause a temperature gradient on the surface and inside of the metal workpiece, thereby generating residual stress, inducing cracks and deformation, and causing damage.

[0006] However, in actual use, the above structure is not convenient for effectively and thoroughly cleaning the residual oxidized decarburization layer on the workpiece surface. This deficiency may result in the residual oxidized decarburization layer on the workpiece surface, which in turn affects the subsequent quenching effect and the overall performance of the workpiece. Specifically, the presence of the oxidized decarburization layer may reduce the hardness and wear resistance of the workpiece, and even increase the risk of quenching cracking, which is not conducive to ensuring the quality stability and service life of the workpiece. Summary of the invention

[0007] In view of the above problems, an automated metal heat treatment equipment for preventing quenching cracking is provided, which solves the problem of inconvenience in effectively cleaning the oxidized decarburization layer on the surface of the workpiece through a preliminary treatment unit.

[0008] To solve the problems of the prior art, the present invention provides an automated metal heat treatment equipment for preventing quenching cracking, comprising a casing, a hydraulic cylinder arranged on the top of the casing, and a water tank arranged on the top of the casing and used to place workpieces, the automated metal heat treatment equipment also comprising a preliminary treatment unit and a cooling unit; the preliminary treatment unit is arranged on the top of the casing and located beside the hydraulic cylinder, the preliminary treatment unit comprises a placing plate and a cleaning frame; the placing plate is used to support the workpiece to be cleaned and is arranged on the top of the casing and located on one side of the hydraulic cylinder; the cleaning frame is slidably arranged on the top of the casing and connected to the output end of the hydraulic cylinder, and the cleaning frame is used to receive the workpiece dropped from the top of the placing plate so as to perform subsequent quenching operations; the cooling unit is arranged on the top of the casing and located below the hydraulic cylinder, and the cooling unit is used to cool the workpiece after preliminary treatment to prevent quenching cracking.

[0009] Preferably, the preliminary processing unit also includes a first telescopic cylinder, a moving part, a rotating roller and a first cleaning conveyor belt; the first telescopic cylinder is arranged on the top of the material loading plate and is located beside the casing; the moving part is arranged at the output end of the first telescopic cylinder; the rotating roller has a pair and is rotatably arranged on the top of the moving part respectively; the first cleaning conveyor belt is sleeved on the outside of a pair of rotating rollers and is located beside the moving part.

[0010] Preferably, the preliminary processing unit also includes a fixed plate, a clamping cylinder, a pushing cylinder, a sliding part, a rotating roller and a second cleaning transfer belt; the fixed plate has a pair and is respectively arranged on the top of the cleaning frame; the clamping cylinder has a pair and is respectively arranged on the top of the fixed plate; the pushing cylinder is arranged at the top of the cleaning frame and is located beside the clamping cylinder; the sliding part is arranged at the output end of the pushing cylinder; the rotating roller has a pair and is respectively rotatably arranged beside the sliding part; the second cleaning transfer belt is sleeved on the outside of the rotating roller.

[0011] Preferably, the preliminary processing unit also includes a second telescopic cylinder, an extension rod and a third cleaning conveyor belt; the second telescopic cylinder is arranged at the top of the cleaning frame and is located beside the second cleaning conveyor belt; the extension rod is arranged at the output end of the second telescopic cylinder; the third cleaning conveyor belt is arranged below the extension rod.

[0012] Preferably, the preliminary processing unit also includes a bearing rod, a closing plate, a supporting roller and a hinged rod; the bearing rod has a pair and is rotatably arranged at the bottom of the cleaning frame and is located below the clamping cylinder; the closing plate has a pair and is rotatably arranged on the outside of the bearing rod; the supporting roller is rotatably arranged on the top of the closing plate and has a plurality of supporting rollers; one end of the hinged rod is rotatably arranged on the top of the casing, a travel groove is opened on the hinged rod, and the bearing rod is slidably connected to the travel groove.

[0013] Preferably, the cooling unit includes a first rotary drive, an output rod, a limiting rod and a reciprocating rising sliding plate; the first rotary drive is arranged at the top of the casing and below the water tank; the output rod is arranged at the output end of the first rotary drive and inside the water tank; there is a pair of limiting rods and they are respectively arranged inside the water tank, and a pair of limiting rods are located beside the output rod; the reciprocating rising sliding plate is slidably arranged outside the limiting rod and the output rod, and a water hole for water to flow through is opened on the top of the reciprocating rising sliding plate.

[0014] Preferably, the cooling unit also includes a rotating abutment block; the rotating abutment block is rotatably arranged on the outside of the output rod; a circular inclined groove for the rotating abutment block to slide is provided on the reciprocating rising sliding plate, and when the output rod rotates, the rotating abutment block can drive the reciprocating rising sliding plate to an ascending state.

[0015] Preferably, the cooling unit also includes a positioning rod, a supporting plate and a telescopic spring; the positioning rod is arranged on the top of the reciprocating rising sliding plate and has a plurality of them; the supporting plate is slidably arranged on the outside of the positioning rod and is located above the reciprocating rising sliding plate, and a water-avoiding groove for water to pass through is opened on the top of the supporting plate; the telescopic spring is sleeved on the outside of the positioning rod, one end of the telescopic spring is fixedly connected to the reciprocating rising sliding plate, and the other end of the telescopic spring is fixedly connected to the supporting plate.

[0016] Preferably, the cooling unit also includes a guide block, a displacement block and a spoiler; the guide block is arranged on the top of the water tank, and a plurality of guide blocks are arranged in an array along the outer circumference of the output rod; there are a plurality of displacement blocks and they are respectively slidably arranged above the guide blocks; there are a plurality of spoilers and they are respectively arranged on the top of the displacement blocks.

[0017] Preferably, the cooling unit further comprises a connecting rod; one end of the connecting rod is rotatably connected to the reciprocating ascending sliding plate, and the other end of the connecting rod is rotatably connected to the displacement block; a plurality of spoiler grooves for water to pass through are provided on the top of the spoiler.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can avoid the cracking problem of the workpiece caused by residual grease and oxidation decarburization layer on the surface during the subsequent quenching and cooling process by providing a preliminary processing unit, thereby improving the overall quality and stability of the workpiece.

[0019] 2. The present invention is provided with a first telescopic cylinder, a moving part, a rotating roller and a first cleaning conveyor belt. The rotating motor on the moving part is started to drive the rotating roller to rotate, thereby driving the first cleaning conveyor belt sleeved on the outside of the rotating roller to rotate. At this time, the workpiece is attached to one end of the moving part, and the first cleaning conveyor belt performs preliminary cleaning on the side of the workpiece.

[0020] 3. The present invention provides a bearing rod, a closing plate, a supporting roller and a hinge rod. In the initial state, the workpiece can be pushed by the moving part to the top of the closing plate for cleaning after being cleaned by the first cleaning conveyor belt. When the cleaning frame is lowered, the hinge rod is in a flipping state, and during this process, the bearing rod can slide in the travel groove opened on the hinge rod until the workpiece falls smoothly into the water tank, at which time the automatic cleaning and automatic discharge of the workpiece are completed.

[0021] 4. The present invention provides a rotating abutment block and a circular bevel groove, so that when the output rod rotates, it can drive the reciprocating ascending sliding plate to slide up and down through the rotating abutment block and the circular bevel groove. The workpiece will be subjected to a more uniform flushing force in the water, which helps to effectively remove stains, residues, etc. attached to the surface of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural diagram from the first perspective of an automated metal heat treatment equipment for preventing quenching cracking according to the present invention.

[0023] Figure 2 It is a three-dimensional structural diagram of an automated metal heat treatment equipment for preventing quenching cracking according to the present invention, with the cleaning frame being lowered and the closing plate being opened.

[0024] Figure 3 It is a partially cutaway three-dimensional structural diagram of an automated metal heat treatment device for preventing quenching cracking according to the present invention, viewed from a first perspective.

[0025] Figure 4 It is a partially cutaway three-dimensional structural diagram from a second viewing angle of an automated metal heat treatment device for preventing quenching cracking according to the present invention.

[0026] Figure 5 It is a three-dimensional structural diagram of a driving cylinder and a sliding part of an automated metal heat treatment equipment for preventing quenching cracking according to the present invention.

[0027] Figure 6 yes Figure 1 Enlarged structural diagram at point A in the middle.

[0028] Figure 7 yes Figure 5 Enlarged structural diagram at point B in the middle.

[0029] Figure 8 yes Figure 4 Enlarged structural diagram at center C.

[0030] Fig. 9 yes Figure 2 Enlarged structural diagram at point D in the middle.

[0031] Fig.10 It is a three-dimensional structural diagram of an automated metal heat treatment equipment for preventing quenching cracking according to the present invention, in which a reciprocating ascending sliding plate is ascending and a spoiler is relatively close to each other.

[0032] Fig.11 It is a three-dimensional structural diagram of an automated metal heat treatment equipment for preventing quenching cracking according to the present invention, in a state where the reciprocating ascending sliding plate and the spoiler are relatively far apart.

[0033] Fig.12 It is a three-dimensional structural diagram of a circular inclined trough of an automated metal heat treatment equipment for preventing quenching cracking according to the present invention.

[0034] Fig.13 It is a three-dimensional structural diagram of a rotating abutment block of an automated metal heat treatment equipment for preventing quenching cracking according to the present invention.

[0035] The numbers in the figure are: 1, housing; 2, hydraulic cylinder; 3, water tank; 4, preliminary processing unit; 41, material placement plate; 42, cleaning frame; 43, first telescopic cylinder; 44, moving part; 45, rotating roller; 46, first cleaning conveyor belt; 47, fixed plate; 48, clamping cylinder; 49, pushing cylinder; 491, sliding part; 492, rotating roller; 493, second cleaning conveyor belt; 494, second telescopic cylinder; 495, extending rod; 496, The third cleaning transfer belt; 497, bearing rod; 498, closing plate; 4981, supporting roller; 4982, hinged rod; 5, cooling unit; 51, first rotary drive; 52, output rod; 53, limiting rod; 54, reciprocating ascending sliding plate; 541, circular inclined groove; 55, rotating abutment block; 56, positioning rod; 57, supporting plate; 58, telescopic spring; 59, guide rail block; 591, displacement block; 592, spoiler; 593, connecting rod. DETAILED DESCRIPTION

[0036] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] See also Figure 1-Figure 4 As shown, an automated metal heat treatment equipment for preventing quenching cracking includes a casing 1, a hydraulic cylinder 2 arranged on the top of the casing 1, and a water tank 3 arranged on the top of the casing 1 and used to place workpieces. The automated metal heat treatment equipment also includes a preliminary treatment unit 4 and a cooling unit 5; the preliminary treatment unit 4 is arranged on the top of the casing 1 and is located beside the hydraulic cylinder 2, and the preliminary treatment unit 4 includes a material placement plate 41 and a cleaning frame 42; the material placement plate 41 is used to support the workpiece to be cleaned and is arranged on the top of the casing 1 and is located on one side of the hydraulic cylinder 2; the cleaning frame 42 is slidably arranged on the top of the casing 1 and connected to the output end of the hydraulic cylinder 2, and the cleaning frame 42 is used to receive the workpiece dropped from the top of the material placement plate 41 for subsequent quenching operations; the cooling unit 5 is arranged on the top of the casing 1 and is located below the hydraulic cylinder 2, and the cooling unit 5 is used to cool the workpiece after preliminary treatment to prevent quenching cracking.

[0038] By setting up the preliminary processing unit 4, the workpiece to be cleaned can be placed on the material placement plate 41 for preliminary cleaning of the workpiece, and most of the impurities on the workpiece surface can be removed. After the preliminary cleaning, the workpiece is pushed onto the cleaning frame 42 and the grease and oxidation decarburization layer remaining on the workpiece surface can be further removed to ensure the cleanliness of the workpiece surface, and to avoid the cracking problem caused by the residual grease and oxidation decarburization layer on the surface during the subsequent quenching and cooling process of the workpiece, thereby improving the overall quality and stability of the workpiece.

[0039] See also Figure 2-Figure 4 As shown, the preliminary processing unit 4 also includes a first telescopic cylinder 43, a moving part 44, a rotating roller 45 and a first cleaning transfer belt 46; the first telescopic cylinder 43 is arranged on the top of the material placing plate 41 and is located beside the casing 1; the moving part 44 is arranged at the output end of the first telescopic cylinder 43; the rotating roller 45 has a pair and is rotatably arranged on the top of the moving part 44 respectively; the first cleaning transfer belt 46 is sleeved on the outside of the pair of rotating rollers 45 and is located beside the moving part 44.

[0040] In the initial state, the workpiece is placed on the conveyor belt at the bottom of the material placement plate 41 by the robotic arm. At this time, the rotary motor starts to drive the second rotary roller 45 to rotate, thereby driving the conveyor belt to move, so that the workpiece moves on the conveyor belt in the direction close to the moving part 44. In this process, the conveyor belt contacts the workpiece and performs a preliminary cleaning on the bottom surface of the workpiece. When the workpiece moves to a position adjacent to the moving part 44, the rotary motor on the moving part 44 starts to drive the rotary roller 45 to rotate, thereby driving the first cleaning conveyor belt 46 sleeved on the outside of the rotary roller 45 to rotate. At this time, the workpiece is attached to one end of the moving part 44, and the first cleaning conveyor belt 46 performs a preliminary cleaning of the side of the workpiece. After cleaning, the workpiece is lifted and flipped by the robotic arm, and both sides of the workpiece are contacted with the conveyor belt and cleaned.

[0041] See also Figure 2-Figure 5 As shown, the preliminary processing unit 4 also includes a fixed plate 47, a clamping cylinder 48, a pushing cylinder 49, a sliding part 491, a rotating roller 492 and a second cleaning transfer belt 493; the fixed plate 47 has a pair and is respectively arranged on the top of the cleaning frame 42; the clamping cylinder 48 has a pair and is respectively arranged on the top of the fixed plate 47; the pushing cylinder 49 is arranged at the top of the cleaning frame 42 and is located beside the clamping cylinder 48; the sliding part 491 is arranged at the output end of the pushing cylinder 49; the rotating roller 492 has a pair and is respectively rotatably arranged beside the sliding part 491; the second cleaning transfer belt 493 is sleeved on the outside of the rotating roller 492.

[0042] A second rotary motor is provided beside the rotating roller 492 to drive the rotation of the rotating roller 492. After the cleaning operation is completed, the conveyor belt and the first cleaning conveyor belt 46 stop working. At this time, the first telescopic cylinder 43 is started to drive the moving part 44 to push the workpiece out from the top of the material placing plate 41 and place it on the cleaning frame 42. The clamping cylinder 48 is started to firmly clamp the workpiece on the top of the cleaning frame 42. Subsequently, the pushing cylinder 49 is started to drive the sliding part 491 to move. The movement of the sliding part 491 synchronously drives the rotating roller 492 and its matching second cleaning conveyor belt 493 to move until the rotating roller 492 and the second cleaning conveyor belt 493 contact the workpiece. Once in contact, the second rotary motor is started to drive the rotating roller 492 and the second cleaning conveyor belt 493 to rotate, and further cleaning operations are performed on the top surface of the workpiece.

[0043] See also Figure 3-Figure 8 As shown, the preliminary processing unit 4 also includes a second telescopic cylinder 494, an extending rod 495 and a third cleaning conveyor belt 496; the second telescopic cylinder 494 is arranged at the top of the cleaning frame 42 and is located next to the second cleaning conveyor belt 493; the extending rod 495 is arranged at the output end of the second telescopic cylinder 494; the third cleaning conveyor belt 496 is arranged below the extending rod 495.

[0044] Finally, when the workpiece is pushed onto the cleaning frame 42, the second telescopic cylinder 494 is activated, so that the extension rod 495 drives the third cleaning conveyor belt 496 to descend until the third cleaning conveyor belt 496 contacts the workpiece. At this time, the third cleaning conveyor belt 496 performs the final cleaning operation on the workpiece. Since the workpiece has been cleaned at the bottom and both sides of the workpiece on the conveyor belt and the first cleaning conveyor belt 46, the workpiece can be fully cleaned on the top and bottom and left and right sides of the workpiece when it is on the third cleaning conveyor belt 496.

[0045] See also Figure 3-Figure 9As shown, the preliminary processing unit 4 also includes a bearing rod 497, a closing plate 498, a supporting roller 4981 and a hinged rod 4982; the bearing rod 497 has a pair and is rotatably set at the bottom of the cleaning frame 42 and is located below the clamping cylinder 48; the closing plate 498 has a pair and is rotatably set on the outside of the bearing rod 497; the supporting roller 4981 is rotatably set on the top of the closing plate 498 and has a plurality of supporting rollers; one end of the hinged rod 4982 is rotatably set on the top of the casing 1, and a travel groove is opened on the hinged rod 4982, and the bearing rod 497 is slidably connected to the travel groove.

[0046] After the workpiece is cleaned, the hydraulic cylinder 2 starts and drives the cleaning frame 42 to move downward. In the initial state, after the workpiece is cleaned by the first cleaning conveyor belt 46, it can be pushed by the moving part 44 to the top of the closing plate 498 for cleaning. When the cleaning frame 42 is descending, the hinge rod 4982 is in a flipping state, and during this process, the bearing rod 497 can slide in the travel groove opened on the hinge rod 4982. During this process, the closing plate 498 can flip to the bottom of the water tank 3, at which time the workpiece can contact the supporting roller 4981, and the supporting roller 4981 can rotate with the contacted workpiece until the workpiece smoothly falls into the water tank 3, at which time the automatic cleaning and automatic discharge of the workpiece are completed.

[0047] See also Figure 3 and Figure 4 As shown, the cooling unit 5 includes a first rotary driver 51, an output rod 52, a limiting rod 53 and a reciprocating rising sliding plate 54; the first rotary driver 51 is arranged at the top of the casing 1 and is located below the water tank 3; the output rod 52 is arranged at the output end of the first rotary driver 51 and is located inside the water tank 3; the limiting rod 53 has a pair and is respectively arranged inside the water tank 3, and a pair of limiting rods 53 are located beside the output rod 52; the reciprocating rising sliding plate 54 is slidably arranged outside the limiting rod 53 and the output rod 52, and a water hole for water flow to pass through is opened on the top of the reciprocating rising sliding plate 54.

[0048] The workpiece can contact the supporting roller 4981 and fall to the top of the reciprocating rising sliding plate 54, and then the first rotary driver 51 starts and drives the output rod 52 to rotate. When the output rod 52 rotates, it can drive the reciprocating rising sliding plate 54 to move upward along the clearance-fitting limiting rod 53.

[0049] See also Fig.13 As shown, the cooling unit 5 also includes a rotating abutment block 55; the rotating abutment block 55 is rotatably arranged on the outside of the output rod 52; a circular inclined groove 541 is provided on the reciprocating rising sliding plate 54 for the rotating abutment block 55 to slide, and when the output rod 52 rotates, the rotating abutment block 55 can drive the reciprocating rising sliding plate 54 to be in an ascending state.

[0050] When the output rod 52 rotates, it can drive the rotating abutment block 55 to rotate synchronously. When the rotating abutment block 55 rotates, it can contact and slide with the circular inclined groove 541 opened inside the reciprocating rising sliding plate 54. Since the circular inclined groove 541 is opened at an angle, the output rod 52 can drive the reciprocating rising sliding plate 54 to slide up and down through the rotating abutment block 55 and the circular inclined groove 541 when rotating. The workpiece will be subjected to a more uniform flushing force in the water, which helps to effectively remove stains, residues, etc. attached to the surface of the workpiece.

[0051] See also Fig.11 and Fig.12 As shown, the cooling unit 5 also includes a positioning rod 56, a supporting plate 57 and a telescopic spring 58; the positioning rod 56 is arranged on the top of the reciprocating rising sliding plate 54 and has a plurality of them; the supporting plate 57 is slidably arranged on the outside of the positioning rod 56 and is located above the reciprocating rising sliding plate 54, and a water-avoiding groove for water to pass through is opened on the top of the supporting plate 57; the telescopic spring 58 is sleeved on the outside of the positioning rod 56, one end of the telescopic spring 58 is fixedly connected to the reciprocating rising sliding plate 54, and the other end of the telescopic spring 58 is fixedly connected to the supporting plate 57.

[0052] After the workpiece is opened and dropped by the closing plate 498, it can fall to the top of the supporting plate 57, and at this time, the supporting plate 57 can cause the telescopic spring 58 to be compressed and buffer the supporting plate 57. Then, when the reciprocating ascending sliding plate 54 ascends and descends, it can drive the supporting plate 57 to move synchronously, so that the workpiece on the supporting plate 57 can be reciprocatedly flushed by the cooling water inside the water tank 3, thereby achieving the effect of cooling and cleaning.

[0053] See also Fig.11 and Fig.12 As shown, the cooling unit 5 also includes a guide block 59, a displacement block 591 and a spoiler 592; the guide block 59 is arranged on the top of the water tank 3, and a plurality of guide blocks 59 are arranged in an array along the outer circumference of the output rod 52; the displacement blocks 591 have a plurality and are respectively slidably arranged above the guide blocks 59; the spoiler 592 has a plurality and is respectively arranged on the top of the displacement blocks 591.

[0054] When the reciprocating ascending sliding plate 54 ascends, the displacement block 591 can be driven to slide along the guide block 59, and the spoiler 592 can be driven to be relatively close to each other when the displacement block 591 slides. When the spoiler 592 moves, the cooling water inside the water tank 3 can be in a fluctuating state, thereby enhancing the fluidity of the cooling water and increasing the flushing effect of the cooling water on the workpiece placed at the bottom of the supporting plate 57.

[0055] See also Fig.11 and Fig.12As shown, the cooling unit 5 also includes a connecting rod 593; one end of the connecting rod 593 is rotatably connected to the reciprocating ascending sliding plate 54, and the other end of the connecting rod 593 is rotatably connected to the displacement block 591; a plurality of spoiler grooves for water to pass through are provided on the top of the spoiler plate 592.

[0056] The water tank 3 is provided with a condenser, a heat exchanger and a submersible water pump. The submersible water pump is responsible for driving the circulation of cooling water inside the water tank 3. After the cooling system is started, the submersible water pump extracts cooling water from the water tank 3 and delivers it to the condenser through the pipeline system. In the condenser, the cooling water exchanges heat with the hot fluid, thereby reducing the temperature of the cooling water inside the water tank 3. Subsequently, the cooling water after heat exchange is sent back to the water tank 3 to complete the cycle. At the same time, the heat exchanger is also connected to the cooling water circulation system to further adjust the temperature of the cooling water. A temperature sensor and a temperature controller are also installed on one side of the water tank 3. The temperature sensor is responsible for real-time detection of the temperature of the cooling water inside the water tank 3, and accurately sends the detected temperature signal to the temperature controller. The temperature controller accurately controls the water temperature according to the received signal to ensure that the cooling water is kept within a suitable temperature range. The water tank 3 not only realizes effective control of the internal cooling water, but also can continuously and stably cool the workpiece cooled inside the water tank 3, thereby ensuring that the workpiece maintains excellent performance during the cooling process and effectively preventing the workpiece from cracking during cooling and quenching. During the ascending process of the reciprocating ascending sliding plate 54, the connecting rod 593 can drive the displacement block 591 to be in a sliding state, and when the reciprocating ascending sliding plate 54 descends, the connecting rod 593 can drive the displacement block 591 and the spoiler 592 to be relatively far apart, so that the cleaned workpiece can be evenly cooled in the water tank 3, ensuring that the cooling water can evenly and fully contact the surface of the workpiece, avoiding local overheating or uneven cooling caused by thermal stress concentration, thereby effectively preventing cracking caused by too fast or too large temperature changes.

[0057] Working principle: In the initial state, the workpiece is accurately placed on the conveyor belt at the bottom of the material placement plate 41 by the robot arm. Subsequently, the rotary motor is started to drive the second rotary roller 45 to rotate, thereby driving the conveyor belt to move, so that the workpiece moves along the conveyor belt toward the moving part 44. In this process, the conveyor belt contacts the bottom surface of the workpiece to achieve preliminary cleaning. When the workpiece moves to a position adjacent to the moving part 44, the rotary motor on the moving part 44 is started to drive the rotary roller 45 to rotate, driving the first cleaning conveyor belt 46 to rotate. At this time, the workpiece is attached to one end of the moving part 44, and the first cleaning conveyor belt 46 cleans the side of the workpiece. After the cleaning operation is completed, the conveyor belt and the first cleaning conveyor belt 46 stop working. The first telescopic cylinder 43 is started to drive the moving part 44 to push the workpiece onto the cleaning frame 42. Subsequently, the clamping cylinder 48 is started to firmly clamp the workpiece at the top of the cleaning frame 42. Next, the push cylinder 49 is started to drive the sliding part 491 to move, synchronously driving the rotating roller 492 and the second cleaning conveyor belt 493 to move to contact the workpiece. At this time, the second rotary motor starts, driving the rotating roller 492 and the second cleaning conveyor belt 493 to rotate, and further cleaning the top surface of the workpiece. Subsequently, when the workpiece is pushed onto the cleaning frame 42, the second telescopic cylinder 494 starts, driving the extension rod 495 and the third cleaning conveyor belt 496 to descend, contact the workpiece and perform the final cleaning operation, so as to achieve comprehensive cleaning of the upper and lower and left and right sides of the workpiece. After the cleaning is completed, the hydraulic cylinder 2 starts, driving the cleaning frame 42 to descend. In this process, the closing plate 498 flips to the bottom of the water tank 3 through the sliding cooperation of the hinge rod 4982 and the bearing rod 497, and the workpiece contacts the supporting roller 4981 and rotates until it smoothly falls into the water tank 3, completing automatic cleaning and discharging. After the workpiece falls, it falls on the top of the reciprocating rising sliding plate 54. At this time, the first rotary driver 51 starts, driving the output rod 52 to rotate, driving the reciprocating rising sliding plate 54 to slide back and forth along the limiting rod 53 to rise and fall. At the same time, the rotating abutment block 55 contacts and slides with the circular inclined groove 541 inside the reciprocating rising sliding plate 54, so that the workpiece is subjected to uniform flushing force in the water, effectively removing stains and residues. During the rising process of the reciprocating rising sliding plate 54, the displacement block 591 slides along the guide block 59, driving the spoiler 592 to move, so that the cooling water inside the water tank 3 is in a fluctuating state, enhancing fluidity and improving the flushing effect. A condenser, a heat exchanger and a submersible water pump are arranged inside the water tank 3. After the cooling system is started, the submersible water pump draws out the cooling water, transports it to the condenser through the pipeline system for heat exchange, and sends it back to the water tank 3 to complete the cycle after the temperature is reduced. At the same time, the heat exchanger is used to adjust the temperature of the cooling water. The temperature sensor and the temperature controller monitor and control the temperature of the cooling water inside the water tank 3 in real time to ensure that it remains within an appropriate range.In addition, during the rising and falling process of the reciprocating rising sliding plate 54, the connecting rod 593 drives the displacement block 591 and the spoiler 592 to slide relative to and away from each other, so that the cleaned workpiece is evenly cooled in the water tank 3, avoiding thermal stress concentration and cracking caused by local overheating or uneven cooling.

[0058] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An automated metal heat treatment device for preventing quenching cracking, comprising a housing (1), a hydraulic cylinder (2) arranged on the top of the housing (1), and a water tank (3) arranged on the top of the housing (1) for placing workpieces, characterized in that: The automated metal heat treatment equipment further comprises a preliminary treatment unit (4) and a cooling unit (5); The preliminary processing unit (4) is arranged on the top of the housing (1) and is located beside the hydraulic cylinder (2). The preliminary processing unit (4) comprises a material placing plate (41) and a cleaning frame (42); The material placement plate (41) is used to support the workpiece to be cleaned and is arranged on the top of the housing (1) and located on one side of the hydraulic cylinder (2); The cleaning frame (42) is slidably disposed on the top of the housing (1) and connected to the output end of the hydraulic cylinder (2), and the cleaning frame (42) is used to receive the workpiece dropped from the top of the material placement plate (41) so as to perform subsequent quenching operations; The cooling unit (5) is arranged on the top of the housing (1) and is located below the hydraulic cylinder (2). The cooling unit (5) is used to cool the workpiece after the preliminary treatment to prevent quenching cracking.

2. The automatic metal heat treatment equipment for preventing quenching cracking according to claim 1, characterized in that: The preliminary processing unit (4) further comprises a first telescopic cylinder (43), a moving part (44), a rotating roller (45) and a first cleaning transfer belt (46); the first telescopic cylinder (43) is arranged on the top of the material placing plate (41) and is located beside the housing (1); the moving part (44) is arranged at the output end of the first telescopic cylinder (43); the rotating roller (45) has a pair and is rotatably arranged on the top of the moving part (44); the first cleaning transfer belt (46) is sleeved outside the pair of rotating rollers (45) and is located beside the moving part (44).

3. The automatic metal heat treatment equipment for preventing quenching cracking according to claim 1, characterized in that: The preliminary processing unit (4) also includes a fixed plate (47), a clamping cylinder (48), a pushing cylinder (49), a sliding part (491), a rotating roller (492) and a second cleaning transfer belt (493); the fixed plate (47) has a pair of and are respectively arranged on the top of the cleaning frame (42); the clamping cylinder (48) has a pair of and are respectively arranged on the top of the fixed plate (47); the pushing cylinder (49) is arranged at the top of the cleaning frame (42) and is located beside the clamping cylinder (48); the sliding part (491) is arranged at the output end of the pushing cylinder (49); the rotating roller (492) has a pair of and are respectively rotatably arranged beside the sliding part (491); the second cleaning transfer belt (493) is sleeved on the outside of the rotating roller (492).

4. The automatic metal heat treatment equipment for preventing quenching cracking according to claim 2, characterized in that: The preliminary processing unit (4) further comprises a second telescopic cylinder (494), an extension rod (495) and a third cleaning conveyor belt (496); the second telescopic cylinder (494) is arranged at the top of the cleaning frame (42) and is located beside the second cleaning conveyor belt (493); the extension rod (495) is arranged at the output end of the second telescopic cylinder (494); and the third cleaning conveyor belt (496) is arranged below the extension rod (495).

5. An automated metal heat treatment equipment for preventing quenching cracking according to any one of claims 2 to 4, characterized in that: The preliminary processing unit (4) further comprises a bearing rod (497), a closing plate (498), a supporting roller (4981) and a hinge rod (4982); the bearing rod (497) has a pair of bearing rods which are rotatably arranged at the bottom of the cleaning frame (42) and located below the clamping cylinder (48); the closing plate (498) has a pair of bearing rods which are rotatably arranged at the outside of the bearing rod (497); the supporting roller (4981) is rotatably arranged at the top of the closing plate (498) and has a plurality of supporting rollers; one end of the hinge rod (4982) is rotatably arranged at the top of the housing (1), a travel groove is provided on the hinge rod (4982), and the bearing rod (497) is slidably connected to the travel groove.

6. The automated metal heat treatment equipment for preventing quenching cracking according to claim 1, characterized in that: The cooling unit (5) comprises a first rotary drive (51), an output rod (52), a limiting rod (53) and a reciprocating ascending sliding plate (54); the first rotary drive (51) is arranged at the top of the housing (1) and is located below the water tank (3); the output rod (52) is arranged at the output end of the first rotary drive (51) and is located inside the water tank (3); a pair of limiting rods (53) are arranged inside the water tank (3), and the pair of limiting rods (53) are located beside the output rod (52); the reciprocating ascending sliding plate (54) is slidably arranged outside the limiting rod (53) and the output rod (52), and a water hole for water flow is opened at the top of the reciprocating ascending sliding plate (54).

7. The automatic metal heat treatment equipment for preventing quenching cracking according to claim 6, characterized in that: The cooling unit (5) further comprises a rotating abutment block (55); the rotating abutment block (55) is rotatably arranged outside the output rod (52); a circular inclined groove (541) for the rotating abutment block (55) to slide is provided on the reciprocating ascending sliding plate (54); when the output rod (52) rotates, the rotating abutment block (55) can drive the reciprocating ascending sliding plate (54) to be in an ascending state.

8. The automatic metal heat treatment equipment for preventing quenching cracking according to claim 7, characterized in that: The cooling unit (5) further comprises a positioning rod (56), a supporting plate (57) and a telescopic spring (58); the positioning rod (56) is arranged on the top of the reciprocating ascending sliding plate (54) and has a plurality of them; the supporting plate (57) is slidably arranged outside the positioning rod (56) and is located above the reciprocating ascending sliding plate (54), and a water-avoiding groove for water to pass through is opened on the top of the supporting plate (57); the telescopic spring (58) is sleeved on the outside of the positioning rod (56), one end of the telescopic spring (58) is fixedly connected to the reciprocating ascending sliding plate (54), and the other end of the telescopic spring (58) is fixedly connected to the supporting plate (57).

9. The automatic metal heat treatment equipment for preventing quenching cracking according to claim 6, characterized in that: The cooling unit (5) further comprises a guide rail block (59), a displacement block (591) and a spoiler (592); the guide rail block (59) is arranged on the top of the water tank (3), and a plurality of guide rail blocks (59) are arranged in an array along the outer circumference of the output rod (52); the displacement blocks (591) have a plurality of portions and are respectively slidably arranged above the guide rail blocks (59); and the spoiler (592) has a plurality of portions and are respectively arranged on the top of the displacement blocks (591).

10. The automatic metal heat treatment equipment for preventing quenching cracking according to claim 9, characterized in that: The cooling unit (5) further comprises a connecting rod (593); one end of the connecting rod (593) is rotatably connected to the reciprocating ascending sliding plate (54), and the other end of the connecting rod (593) is rotatably connected to the displacement block (591); and a plurality of spoiler grooves for water to pass through are provided on the top of the spoiler plate (592).

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