Online stress relief annealing equipment and method for copper alloy stamping parts

Abstract

The invention belongs to the technical field of annealing equipment, and particularly relates to online stress relief annealing equipment and method for copper alloy stamping parts. The online stress relief annealing equipment comprises an annealing furnace, a hot air circulating fan fixed to the surface of the annealing furnace and a conveyor placed at the feeding end of the annealing furnace; the device is provided with the feeding assembly, copper alloy stamping parts can be rapidly and efficiently transferred and clamped, feeding operation can be completed under the condition that workers do not need to make direct contact with high-temperature parts, direct contact between the workers and the high-temperature copper alloy stamping parts is completely avoided, the skin scalding accident is fundamentally eradicated, and the working efficiency is improved. According to the feeding device, feeding operation can be conducted continuously, so that the production efficiency of the whole stress relief annealing process is improved, the continuity of the production process is ensured, feeding errors caused by fatigue, inattention and the like of workers are eliminated, seamless connection with stress relief annealing equipment can be achieved, and the whole machining process is smoother.

Description

Technical Field

[0001] The invention belongs to the technical field of annealing equipment, and in particular relates to an online stress relief annealing equipment and method for copper alloy stamping parts. Background Art

[0002] In modern industrial production, copper alloy stampings are widely used in various fields. Copper alloy stampings often generate internal stress during processing. In order to eliminate these internal stresses and improve the dimensional stability and mechanical properties of copper alloy stampings, it is usually necessary to perform stress relief annealing on copper alloy stampings.

[0003] In the traditional copper alloy stamping parts stress relief annealing process, the loading process mainly relies on manual operation. However, the high-temperature stamping parts after stamping are extremely hot. When workers are manually loading, they directly contact these high-temperature parts, which can easily cause skin burns and cause serious harm to the workers. In addition, manual loading not only has safety hazards, but also has problems such as low efficiency and difficulty in ensuring loading accuracy. Since the high temperature environment will cause discomfort to workers, their operating speed and accuracy will be greatly affected. Moreover, mistakes caused by fatigue, lack of concentration, etc. are prone to occur during manual loading, which in turn affects product quality and production progress.

[0004] In order to solve the above problems, the present application proposes an online stress relief annealing device and method for copper alloy stamping parts. Summary of the invention

[0005] The present invention provides an online stress relief annealing device and method for copper alloy stamping parts, which can effectively solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: an online stress relief annealing device for copper alloy stamping parts, comprising an annealing furnace, a hot air circulation fan fixed on the surface of the annealing furnace, and a conveyor placed at the feed end of the annealing furnace;

[0007] A loading assembly is arranged above the conveyor, and the loading assembly includes a loading base plate arranged above the conveyor, a support plate fixed on the lower surface of the loading base plate, and a bonding pressure plate arranged in the middle part just below the support plate, a spring is fixed between the four corners of the bottom of the bonding pressure plate and the surface of the support plate, a yield rack is fixed on the surface of the bonding pressure plate, a yield gear is meshedly connected on the surface of the yield rack, a support frame is fixed on the surface of the loading base plate, a clamping shaft is rotatably connected inside the support frame, and a splint is arranged on the outside of the support frame.

[0008] As a preferred online stress relief annealing equipment for copper alloy stamping parts of the present invention, a blocking strip is welded on the side of the support plate surface close to spring 1, and the insides of the loading base plate and the support plate are provided with giveway grooves matched with the giveway rack, a driving shaft is fixed inside the giveway gear, and the driving shaft is rotatably connected to the surface of the support plate through a rotating bracket, a bevel gear group 1 is fixed to one end of the driving shaft, a driving shaft is coaxially fixed inside the bevel gear of the bevel gear group 1, and the driving shaft is rotatably connected to the surface of the loading base plate, a driving gear is fixed on the surface of the driving shaft, and the surface of the driving gear is meshed with driven gears all around, a driven shaft is fixed inside the driven gear, and the driven shaft is rotatably connected between the loading base plate and the support plate.

[0009] As a preferred online stress relief annealing equipment for copper alloy stamping parts of the present invention, a transmission belt is fixed to the surface of the driven shaft, a transmission shaft is coaxially fixed inside the pulley of the transmission belt, the transmission shaft is rotatably connected to the surface of the loading base plate, a bevel gear group 2 is fixed to one end of the transmission shaft, a rotating shaft is coaxially fixed inside the bevel gear of the bevel gear group 2, a fixing frame is fixed to the side of the support plate surface close to the rotating shaft, and the rotating shaft is rotatably connected to the inside of the fixing frame, a transmission gear is fixed to the surface of the rotating shaft, and a clamping gear is meshingly connected to the surface of the transmission gear.

[0010] As a preferred online stress relief annealing equipment for copper alloy stamping parts of the present invention, the clamping gear is fixed on the surface of the clamping shaft, and rocker arms are symmetrically fixed at both ends of the surface of the clamping shaft, one end of two groups of rocker arms are hinged to the surface of the splint, a connecting rod is hinged to the middle of the surface of the splint, and the end of the connecting rod away from the splint is hinged to the top of the support frame, and a protective pad is fixed inside the splint.

[0011] As a preferred online stress relief annealing equipment for copper alloy stamping parts of the present invention, a transfer assembly is installed at the surface feed end of the annealing furnace, and the transfer assembly includes a transfer frame fixed to the surface feed end of the annealing furnace, a transfer motor screwed to the surface side of the transfer frame, and a transfer screw rotatably connected to the inside of the transfer frame, a lifting push rod is arranged between the transfer frame and the loading bottom plate, a ratchet is fixed to the surface of one end of the drive shaft, and a pawl is meshingly connected to the surface of the ratchet.

[0012] As a preferred online stress relief annealing equipment for copper alloy stamping parts of the present invention, the surface of the transfer screw rod is threadedly connected with a transfer screw block, the surface of the transfer screw block is fixed with a transfer seat, and the lifting push rod is fixed between the transfer seat and the loading bottom plate, the inner surface of the transfer frame is screwed to a touch switch on the side close to the annealing furnace, and the touch switch is facing the side of the transfer screw block, the surface of the support plate is fixed with a locking frame on the side close to the driving shaft, and the pawl is hinged to the inside of the locking frame, a spring 2 is fixed between the pawl and the locking frame, a positioning frame with a U-shaped structure is hinged to the surface of the pawl, and the positioning frame is slidably connected to a sliding groove opened in the locking frame, an electromagnet 2 is fixed to the inside of the positioning frame, an electromagnet 1 is fixed to the side of the locking frame surface close to the electromagnet 2, and the magnetic poles of the electromagnet 1 and the electromagnet 2 are the same after power is supplied.

[0013] As a preferred online stress relief annealing equipment for copper alloy stamping parts of the present invention, a flip assembly is installed inside the annealing furnace, and the flip assembly includes electric push rods screwed to both sides of the surface of the annealing furnace, a flip rack fixed at the output end of the electric push rod, and a flip gear meshingly connected to the surface of the flip rack, a limiting slide is fixed to the side of the annealing furnace surface close to the flip rack, and the flip rack is slidably connected to the inside of the limiting slide, a flip shaft is fixed to the inside of the flip gear, and the flip shaft is rotatably connected to the inside of the annealing furnace, and two groups of the flip shafts are symmetrically provided with clamping blocks at opposite ends, and a pressure sensor 1 is fixed to the surface of the clamping blocks.

[0014] As a preferred online stress relief annealing equipment for copper alloy stamping parts of the present invention, flip frames are symmetrically fixed to the opposite ends of the two groups of flip shafts, abutment push rods are symmetrically fixed to the opposite sides of the two groups of flip frames, reversing seats are symmetrically fixed to the output ends of the two groups of abutment push rods, positioning slide rails are symmetrically fixed to the inner sides of the reversing seat, a positioning slide rail is slidably connected between the two groups of positioning slide rails, and the clamping block is fixed to the surface of the positioning slide rail, and a spring three is fixed between the positioning slide rail and the reversing seat.

[0015] As a preferred online stress relief annealing equipment for copper alloy stampings of the present invention, a yield ring frame is fixed on one side of the inner wall of the annealing furnace close to the two groups of flip shafts, and the insides of the two groups of the yield ring frames are slidably connected with swing sliders, springs four are symmetrically fixed on both sides of the swing sliders, and pressure sensor two is fixed between the spring four and the yield ring frame, a connecting frame is fixed between the two groups of the swing sliders, a blocking plate is fixed at the bottom end of the connecting frame, swing frames are symmetrically fixed at both ends of the surface of the connecting frame, a swing shaft is hinged between the two groups of the swing frames, and the swing shaft is fixed inside the annealing furnace.

[0016] The present invention also provides an online stress relief annealing device and method for copper alloy stamping parts, comprising the following steps:

[0017] S1. Start the conveyor to transport the copper alloy stamping parts to the loading position, then start the lifting push rod to drive the bonding plate to approach the surface of the copper alloy stamping parts, and then the bonding plate and the copper alloy stamping parts are squeezed and contacted to drive the clamping plate and the protective pad to quickly and efficiently transfer and clamp the copper alloy stamping parts;

[0018] S2. During the clamping process of the driving splint and the protective pad, the driving shaft can be locked by the cooperation of the pawl and the ratchet, so as to continuously and stably apply the clamping force to the copper alloy stamping part;

[0019] S3. After the copper alloy stamping parts are clamped, the copper alloy stamping parts are driven to be transported toward the surface of the annealing furnace by starting the transfer motor and the lifting push rod, and the touch switch is turned on, and finally the copper alloy stamping parts are stably placed on the steel mesh conveyor belt of the annealing furnace;

[0020] S4. As the stress relief annealing treatment proceeds, when the copper alloy stamping part contacts the blocking plate, it can compress the pressure sensor 2 to generate a piezoelectric signal, and then the push rod can be started to drive the clamping block to closely adhere to the surface of the copper alloy stamping part to complete the clamping and fixing;

[0021] S5. After the copper alloy stamping parts are clamped and fixed, the electric push rod can be started to drive the copper alloy stamping parts to flip on the surface of the steel mesh conveyor belt of the annealing furnace, so as to achieve uniform heat reception and ensure the quality of stress relief annealing.

[0022] Compared with the prior art, the present invention has the following beneficial effects: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0023] 1. A feeding component is provided, which can realize the fast and efficient transfer and clamping of copper alloy stamping parts. The feeding operation can be completed without direct manual contact with high-temperature parts, completely avoiding direct contact between workers and high-temperature copper alloy stamping parts, fundamentally eliminating the occurrence of skin burn accidents, and effectively protecting the health and life safety of workers. The feeding operation can be carried out uninterruptedly without being affected by factors such as worker fatigue and rest, which can greatly improve the feeding speed, thereby improving the production efficiency of the entire stress relief annealing process, ensuring the continuity of the production process, and eliminating feeding errors caused by worker fatigue, lack of concentration, etc. It can be seamlessly connected with the stress relief annealing equipment to make the entire processing flow smoother.

[0024] 2. A transfer component is provided to automatically transfer copper alloy stamping parts without manual handling, saving manpower and time. Compared with the intermittent operation of manual transfer, the transfer process can be smoother, reducing the pause and waiting time during the transfer process, improving the overall production efficiency, and can accurately transfer copper alloy stamping parts to the designated position at the feed end of the annealing furnace. It can work continuously under high temperature environmental conditions, while manual transfer will be restricted in high temperature and harsh environments. It can operate stably in these environments to meet production needs.

[0025] 3. A flipping assembly is provided to flip the copper alloy stamping parts so that the originally upward or downward surfaces are alternately placed in different thermal environments, thereby distributing the heat more evenly over the entire stamping parts, allowing each part to receive heat more evenly, ensuring that the annealing effects on both sides are uniform, and helping to more effectively eliminate local stress, thereby releasing the stress inside the entire stamping parts more evenly, thereby improving the quality of stress relief annealing and accelerating the speed at which the entire stamping parts reach the annealing temperature. Compared with the case where flipping is not performed, the time required to achieve the same annealing effect can be reduced to a certain extent, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 3 It is a schematic diagram of the structure of the feeding component and the transfer component in the present invention;

[0030] Figure 4 It is a structural schematic diagram of the feeding assembly in the present invention;

[0031] Figure 5 is a cross-sectional view of the feeding assembly in the present invention;

[0032] Figure 6 For the present invention Figure 4 A magnified image of point A;

[0033] Figure 7 It is a partial cross-sectional view of the feeding assembly in the present invention;

[0034] Figure 8 is a cross-sectional view of the support plate and the locking frame in the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure of the locking frame and the driving shaft in the present invention;

[0036] Fig.10 is a cross-sectional view of the annealing furnace and the turning assembly in the present invention;

[0037] Fig.11 It is a cross-sectional view of the annealing furnace and the yield ring frame in the present invention;

[0038] Fig.12 It is a structural schematic diagram of the reversing seat in the present invention;

[0039] Fig.13 It is a cross-sectional view of the reversing seat in the present invention.

[0040] In the figure: 1. Annealing furnace; 2. Hot air circulation fan; 3. Feeding assembly; 31. Feeding bottom plate; 32. Support plate; 33. Spring 1; 34. Gap rack; 35. Laminating pressure plate; 36. Blocking bar; 37. Gap gear; 38. Driving shaft; 39. Bevel gear group 1; 310. Active shaft; 311. Active gear; 312. Driven gear; 313. Driven shaft; 314. Transmission belt; 315. Transmission shaft; 316. Bevel gear group 2; 317. Rotating shaft; 318. Fixed frame; 319. Transmission gear; 320. Clamping gear; 321. Clamping rotating shaft; 322. Support frame; 323. Rocker; 324. Clamping plate; 325. Connecting rod; 326. Protective pad; 4. Transfer assembly; 41. Transfer frame; 42. Transfer motor; 43. Transfer screw; 44. Transfer Screw transport block; 45, transfer seat; 46, lifting push rod; 47, touch switch; 48, locking frame; 49, pawl; 410, ratchet; 411, positioning frame; 412, spring two; 413, electromagnet one; 414, electromagnet two; 5, flip assembly; 51, electric push rod; 52, flip rack; 53, limit slide; 54, flip gear; 55, flip shaft; 56, flip frame; 57, stick push rod; 58, reversing seat; 59, positioning slide rail; 510, positioning slide; 511, spring three; 512, clamping block; 513, pressure sensor one; 514, give way ring frame; 515, swing slider; 516, spring four; 517, pressure sensor two; 518, connecting frame; 519, swing frame; 520, swing shaft; 521, blocking plate; 6, conveyor. DETAILED DESCRIPTION

[0041] 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.

[0042] Example: Figure 1 - Fig.13 As shown, the present invention provides a technical solution, an online stress relief annealing device for copper alloy stamping parts, comprising an annealing furnace 1, a hot air circulation fan 2 fixed on the surface of the annealing furnace 1, and a conveyor 6 placed at the feeding end of the annealing furnace 1;

[0043] A loading assembly 3 is arranged above the conveyor 6, and the loading assembly 3 includes a loading bottom plate 31, a support plate 32, a spring 1 33, a yielding rack 34, a fitting pressure plate 35, a blocking bar 36, a yielding gear 37, a driving shaft 38, a bevel gear group 1 39, a driving shaft 310, a driving gear 311, a driven gear 312, a driven shaft 313, a transmission belt 314, a transmission shaft 315, a bevel gear group 2 316, a rotating shaft 317, a fixing frame 318, a transmission gear 319, a clamping gear 320, a clamping rotating shaft 321, a supporting frame 322, a swing rod 323, a clamping plate 324, a connecting rod 325 and a protective pad 326;

[0044] The loading bottom plate 31 is arranged above the conveyor 6, the support plate 32 is fixed on the lower surface of the loading bottom plate 31, the fitting pressure plate 35 is arranged in the middle part just below the support plate 32, and springs 33 are fixed between the four corners of the bottom of the fitting pressure plate 35 and the surface of the support plate 32, a blocking strip 36 is welded on the side of the support plate 32 close to the spring 33, a yield rack 34 is fixed on the surface of the fitting pressure plate 35, and the inside of the loading bottom plate 31 and the support plate 32 are provided with yield grooves adapted to the yield rack 34, and the surface of the yield rack 34 is meshed with a yield gear 37, so that A driving shaft 38 is fixed inside the position gear 37, and the driving shaft 38 is rotatably connected to the surface of the support plate 32 through a rotating bracket. A bevel gear set 39 is fixed to one end of the driving shaft 38. A driving shaft 310 is coaxially fixed inside the bevel gear of the bevel gear set 39, and the driving shaft 310 is rotatably connected to the surface of the loading base plate 31. A driving gear 311 is fixed to the surface of the driving shaft 310, and a driven gear 312 is meshed and connected to the surface of the driving gear 311 on all sides. A driven shaft 313 is fixed inside the driven gear 312, and the driven shaft 313 is rotatably connected to the loading base plate 31 and the support plate A transmission belt 314 is fixed on the surface of the driven shaft 313, a transmission shaft 315 is coaxially fixed inside the pulley of the transmission belt 314, and the transmission shaft 315 is rotatably connected to the surface of the loading base plate 31, one end of the transmission shaft 315 is fixed to a bevel gear set 316, and a rotating shaft 317 is coaxially fixed inside the bevel gear of the bevel gear set 316, a fixing frame 318 is fixed on the side of the support plate 32 close to the rotating shaft 317, and the rotating shaft 317 is rotatably connected to the inside of the fixing frame 318, and a transmission gear 319 is fixed on the surface of the rotating shaft 317, and the surface of the transmission gear 319 is meshed with the surface of the transmission gear 319. It is connected to a clamping gear 320, a clamping shaft 321 is fixed inside the clamping gear 320, a support frame 322 is fixed on the side of the surface of the loading base plate 31 close to the clamping shaft 321, and the clamping shaft 321 is rotatably connected to the inside of the support frame 322, rocker arms 323 are symmetrically fixed at both ends of the surface of the clamping shaft 321, a splint 324 is hinged between one end of the two groups of rocker arms 323, a connecting rod 325 is hinged in the middle of the surface of the splint 324, and the end of the connecting rod 325 away from the splint 324 is hinged to the top of the support frame 322, and a protective pad 326 is fixed inside the splint 324.

[0045] A transfer assembly 4 is installed at the surface feeding end of the annealing furnace 1, and the transfer assembly 4 includes a transfer frame 41, a transfer motor 42, a transfer screw 43, a transfer screw block 44, a transfer seat 45, a lifting push rod 46, a touch switch 47, a locking frame 48, a pawl 49, a ratchet 410, a positioning frame 411, a spring 2 412, an electromagnet 1 413 and an electromagnet 2 414;

[0046] A transfer rack 41 is fixed to the surface feeding end of the annealing furnace 1, and a transfer motor 42 is screwed to one side of the surface of the transfer rack 41, a transfer screw rod 43 is fixed to the output end of the transfer motor 42, and the transfer screw rod 43 is rotatably connected to the inside of the transfer rack 41, and a transfer screw block 44 is threadedly connected to the surface of the transfer screw rod 43, and a transfer seat 45 is fixed to the surface of the transfer screw block 44, and a lifting push rod 46 is fixed between the transfer seat 45 and the loading bottom plate 31, and a touch switch 47 is screwed to one side of the inner surface of the transfer rack 41 close to the annealing furnace 1, and the touch switch 47 is opposite to one side of the transfer screw block 44, and a locking frame 48 (such as Figure 8 As shown in the figure, a pawl 49 is hingedly connected inside the locking frame 48, one end of the pawl 49 is meshedly connected with a ratchet 410, and the ratchet 410 is fixed to the surface of one end of the driving shaft 38, a spring 2 412 is fixed between the pawl 49 and the locking frame 48, a positioning frame 411 with a U-shaped structure is hingedly connected on the surface of the pawl 49, and the positioning frame 411 is slidably connected in a sliding groove opened inside the locking frame 48, an electromagnet 2 414 is fixed inside the positioning frame 411, and an electromagnet 1 413 is fixed on the side of the surface of the locking frame 48 close to the electromagnet 2 414, and the magnetic poles of the electromagnet 1 413 and the electromagnet 2 414 are the same after power is supplied.

[0047] A turnover assembly 5 is installed inside the annealing furnace 1, and the turnover assembly 5 includes an electric push rod 51, a turnover rack 52, a limit slide 53, a turnover gear 54, a turnover shaft 55, a turnover frame 56, a push rod 57, a reversing seat 58, a positioning slide rail 59, a positioning slide 510, a spring three 511, a clamping block 512, a pressure sensor one 513, a yielding ring frame 514, a swinging slider 515, a spring four 516, a pressure sensor two 517, a connecting frame 518, a swinging frame 519, a swinging shaft 520 and a blocking plate 521;

[0048] The surface of the annealing furnace 1 is symmetrically screwed with electric push rods 51, and the output end of the electric push rods 51 is fixed with a flip rack 52. A limited slide 53 is fixed on the side of the surface of the annealing furnace 1 close to the flip rack 52, and the flip rack 52 is slidably connected to the inside of the limited slide 53. The surface of the flip rack 52 is meshed with a flip gear 54, and a flip shaft 55 is fixed inside the flip gear 54, and the flip shaft 55 is rotatably connected to the inside of the annealing furnace 1. The opposite ends of the two sets of flip shafts 55 are symmetrically fixed with flip racks 56 (such as Fig.12As shown in the figure, push rods 57 are symmetrically fixed to the opposite sides of the two groups of flip frames 56, and reversing seats 58 are symmetrically fixed to the output ends of the two groups of push rods 57. Positioning rails 59 are symmetrically fixed to the inner sides of the reversing seats 58. A positioning slide 510 is slidably connected between the two groups of positioning rails 59. A clamping block 512 is fixed to the surface of the positioning slide 510. A pressure sensor 513 is fixed to the surface of the clamping block 512. A spring 511 is fixed between the positioning slide 510 and the reversing seat 58. The inner wall surface of the annealing furnace 1 near the two groups of flip shafts 55 is fixed to allow the pressure sensor 513 to be fixed to the surface of the clamping block 512. A spring 511 is fixed between the positioning slide 510 and the reversing seat 58. The two groups of giving way ring frames 514 are slidably connected with swing sliders 515 inside, spring four 516 are symmetrically fixed on both sides of the swing sliders 515, and a pressure sensor 2 517 is fixed between the spring four 516 and the giving way ring frame 514. A connecting frame 518 is fixed between the two groups of swing sliders 515, a blocking plate 521 is fixed to the bottom end of the connecting frame 518, and swing frames 519 are symmetrically fixed at both ends of the surface of the connecting frame 518. A swing shaft 520 is hinged between the two groups of swing frames 519, and the swing shaft 520 is fixed inside the annealing furnace 1.

[0049] The present invention also provides an online stress relief annealing device and method for copper alloy stamping parts, comprising the following steps:

[0050] S1, start the conveyor 6 to convey the copper alloy stamping part to the loading position, then start the lifting push rod 46 to drive the bonding plate 35 to approach the surface of the copper alloy stamping part, and then the bonding plate 35 is squeezed and contacted with the copper alloy stamping part, so as to drive the clamping plate 324 and the protective pad 326 to quickly and efficiently transport and clamp the copper alloy stamping part;

[0051] S2. During the clamping process between the driving clamping plate 324 and the protective pad 326, the driving shaft 38 can be locked by the cooperation between the pawl 49 and the ratchet 410, so as to continuously and stably apply the clamping force to the copper alloy stamping part;

[0052] S3, after the clamping of the copper alloy stamping parts is completed, the copper alloy stamping parts can be driven to be transported toward the surface of the annealing furnace 1 by starting the transfer motor 42 and the lifting push rod 46, and the touch switch 47 is turned on, and finally the copper alloy stamping parts are stably placed on the steel mesh conveyor belt of the annealing furnace 1;

[0053] S4. As the stress relief annealing treatment proceeds, when the copper alloy stamping part contacts the blocking plate 521, it can compress the pressure sensor 2 517 to generate a piezoelectric signal, and the push rod 57 can be started to drive the clamping block 512 to closely adhere to the surface of the copper alloy stamping part to complete the clamping and fixing;

[0054] S5. After the copper alloy stamping parts are clamped and fixed, the electric push rod 51 is started to drive the copper alloy stamping parts to turn over on the surface of the steel mesh conveyor belt of the annealing furnace 1, so as to evenly receive heat and ensure the quality of stress relief annealing.

[0055] When it is necessary to perform online stress relief annealing on the copper alloy stamping parts, first place the copper alloy stamping parts to be processed on the conveyor 6 and start the conveyor 6 to transport them. When the copper alloy stamping parts are transported to the placement plate position at the unloading end of the conveyor 6, the copper alloy stamping parts stop being transported, and then the lifting push rod 46 will start automatically, and then push the loading bottom plate 31 to drive the bonding pressure plate 35 toward the surface of the copper alloy stamping parts. When the bonding pressure plate 35 contacts the surface of the copper alloy stamping parts, it can squeeze the spring 33 to deform and generate elastic force between the support plate 32 and the bonding pressure plate 35, which can not only provide distance compensation between the support plate 32 and the bonding pressure plate 35 , and can also buffer the impact force between the bonding plate 35 and the copper alloy stamping parts to avoid damage to the surface of the copper alloy stamping parts. Through the movement of the bonding plate 35, the yield rack 34 can be driven to move up synchronously, thereby driving the yield gear 37 and the drive shaft 38 to rotate on the surface of the support plate 32, thereby driving the bevel gear group 1 39 to rotate, and the driving shaft 310 can be driven to rotate on the surface of the loading bottom plate 31. Through the rotation of the driving shaft 310, the driving gear 311 can be driven to rotate synchronously, thereby driving multiple groups of driven gears 312 to rotate along the tooth trajectory, thereby driving the driven shaft 313 to rotate synchronously between the loading bottom plate 31 and the support plate 32. With the rotation of the driven shaft 313, with the cooperation of the transmission belt 314, the transmission shaft 315 and the second bevel gear set 316 can be driven to rotate on the surface of the loading bottom plate 31, and then the rotating shaft 317 is driven to rotate inside the fixed frame 318, and the transmission gear 319 is driven to rotate synchronously. Then, the rotation of the transmission gear 319 can drive the clamping gear 320 and the clamping shaft 321 to rotate inside the support frame 322, which can drive the swing rod 323 to flip, and then with the cooperation of the connecting rod 325, the clamping plate 324 and the protective pad 326 can be driven to approach the surface of the copper alloy stamping part until they are clamped on the surface of the copper alloy stamping part, thereby achieving the copper stamping. Alloy stamping parts can be quickly and efficiently transferred and clamped, and the loading operation can be completed without direct manual contact with high-temperature parts, completely avoiding direct contact between workers and high-temperature copper alloy stamping parts, fundamentally eliminating the occurrence of skin burn accidents, and effectively protecting the health and life safety of workers. The loading operation can be carried out uninterruptedly and is not affected by factors such as worker fatigue and rest. The loading speed can be greatly improved, thereby improving the production efficiency of the entire stress relief annealing process, ensuring the continuity of the production process, and eliminating loading errors caused by worker fatigue, inattention, etc. It can be seamlessly connected with the stress relief annealing equipment to make the entire processing flow smoother.

[0056] It is worth noting that the provision of the blocking strip 36 can play a key protective role in the compression process of the spring 33, preventing the spring 33 from being irreversibly deformed or damaged due to excessive pressure, thereby greatly improving the performance and life of the spring 33. The provision of the protective pad 326 can play a buffering role in the clamping process, avoiding direct hard contact between the clamping plate 324 and the surface of the copper alloy stamping part, effectively preventing the surface of the stamping part from being scratched, indented, and other damages, thereby ensuring the appearance quality of the product.

[0057] Furthermore, as the drive shaft 38 rotates, the ratchet 410 can be driven to rotate synchronously. During this period, the elastic force of the spring 2 412 can compel the pawl 49 to slide clockwise along the tooth back of the ratchet 410 (such as Fig. 9As shown), when the clamping of the copper alloy stamping parts is completed and the driving shaft 38 stops rotating, the pawl 49 can lock the position of the ratchet 410, thereby locking the driving shaft 38, so that the clamping plate 324 and the protective pad 326 maintain the clamping state of the copper alloy stamping parts, thereby continuously and stably applying the clamping force to the copper alloy stamping parts to avoid the stamping parts falling due to the instantaneous loss of the clamping force caused by external force. When the clamping of the copper alloy stamping parts is completed, the transfer motor 42 and the lifting push rod 46 are started, and the lifting push rod 46 drives the feeding bottom plate 31 and the copper alloy stamping parts clamped at the bottom thereof to move upward, so that the copper alloy stamping parts can be separated from the surface of the conveyor 6, and the transfer motor 42 drives the transfer screw 43 to move in the transfer frame 41. The interior rotates, thereby driving the transfer screw block 44 to move toward the feed end of the annealing furnace 1, thereby driving the transfer seat 45 and the lifting push rod 46 to move synchronously, and the copper alloy stamping parts can be automatically transferred without manual handling, saving manpower and time. Compared with the intermittent operation of manual transfer, the transfer process can be smoother, the pause and waiting time during the transfer process can be reduced, the overall production efficiency can be improved, and the copper alloy stamping parts can be accurately transferred to the designated position at the feed end of the annealing furnace. It can continue to work under high temperature environmental conditions, while manual transfer will be restricted in high temperature and harsh environments. It can operate stably in these environments to meet production needs. With the continuous movement of the transfer screw block 44, when the transfer screw block 44 is connected After touching the touch switch 47, the touch switch 47 can be turned on, thereby controlling the transfer motor 42 to be immediately turned off, and controlling the lifting push rod 46 to drive the copper alloy stamping part to move down again. When the copper alloy stamping part moves down to the surface of the steel mesh conveyor belt of the annealing furnace 1, by connecting the circuits of electromagnet 1 413 and electromagnet 2 414, the two are energized to generate the same magnetism and repel each other, and the positioning frame 411 can be pushed to drive the pawl 49 to flip inside the locking frame 48, so that the pawl 49 is separated from the surface of the ratchet 410, and the lock on the ratchet 410 and the drive shaft 38 can be released, so that the splint 324 and the protective pad 326 lose the continuous and stable clamping force applied to the copper alloy stamping part, and then reset by moving the lifting push rod 46 upward , which can drive the loading bottom plate 31 and the clamping plate 324 below it to move upward synchronously. In the initial stage of the loading bottom plate 31 moving upward, under the action of the elastic force of spring 1 33, the bonding pressure plate 35 will first be tightly attached to the surface of the copper alloy stamping part, and the distance between it and the support plate 32 will gradually increase. When the rebound force of spring 1 33 is completely released and in a balanced state, the loading bottom plate 31 and the bonding pressure plate 35 below it can be driven to move upward synchronously through the continuous upward movement of the lifting push rod 46. During this period, as the distance between the bonding pressure plate 35 and the support plate 32 gradually increases, the yield rack 34 can be driven to move in the reverse direction along the yield groove opened inside the loading bottom plate 31 and the support plate 32, thereby driving the yield gear 37 and the drive shaft 38 to reverse.The clamping plate 324 and the protective pad 326 can be driven to flip in a direction away from the surface of the copper alloy stamping part, thereby releasing the clamping of the copper alloy stamping part, and placing the stable copper alloy stamping part on the steel mesh conveyor belt of the annealing furnace 1, so that it can directly enter the annealing furnace 1 for stress relief annealing treatment, thus achieving seamless connection from clamping and fixing to annealing processing, improving production efficiency, ensuring the continuity and smoothness of the entire production process, and ensuring the reliability and stability of equipment operation.

[0058] As the copper alloy stamping parts enter the annealing furnace 1 for stress relief annealing treatment, under the transportation of the steel mesh conveyor belt of the annealing furnace 1, when the copper alloy stamping parts move from the feeding end of the annealing furnace 1 to the middle position of the annealing furnace 1 and contact the blocking plate 521, the blocking plate 521 can be pushed to drive the connecting frame 518 to move synchronously, thereby driving the swing slider 515 to slide inside the yielding ring frame 514, and driving the swing frame 519 to swing on the surface of the swing shaft 520, thereby squeezing the spring four 516 to deform and generate elastic force, which can compress the pressure sensor two 517 to generate a piezoelectric signal. When the piezoelectric signal received by the pressure sensor two 517 reaches the threshold value, it can be explained that the copper alloy stamping parts have passed the blocking plate 521 and reached the clamping block 51 2, and the interior of the annealing furnace 1 can be divided into two parts by the blocking plate 521. When the copper alloy stamping parts pass through the first annealing area, the surface temperature of the copper alloy stamping parts has initially increased. When the copper alloy stamping parts pass through the blocking plate 521 and are sent to the second annealing area, the temperature of the second annealing area can be reduced accordingly, which can not only reduce energy consumption, but also ensure that the copper alloy stamping parts will not be damaged due to excessive temperature during the annealing process. Subsequently, the push rod 57 will start immediately and push the reversing seat 58 to drive the clamping block 512 to approach the surface of the copper alloy stamping part. When the clamping block 512 is tightly against the surface of the copper alloy stamping part, the pressure sensor 1 513 will generate a piezoelectric signal. When the two groups of clamping blocks 512 After applying sufficient extrusion pressure to the surface of the copper alloy stamping part, the push rod 57 will close automatically, so that the copper alloy stamping part can be clamped and fixed, and then the electric push rod 51 is started, and the electric push rod 51 drives the flip rack 52 to slide inside the limit slide 53, thereby driving the flip gear 54 and the flip shaft 55 to rotate on the surface of the annealing furnace 1, and then driving the flip frame 56 and the reversing seat 58 to flip synchronously, which can drive the clamping block 512 and the copper alloy stamping part to flip. When the copper alloy stamping part and the clamping block 512 flip 180 degrees, they will leave the surface of the steel mesh conveyor belt of the annealing furnace 1, and then under the action of gravity, the clamping block 512 will drive the positioning slide 510 to slide along the surface of the positioning slide rail 59 inside the reversing seat 58, and squeeze. The compression spring 511 is deformed and generates elastic force until the clamp block 512 moves to the bottom of the flipped reversing seat 58. At this time, the copper alloy stamping part will be flipped and placed on the surface of the steel mesh conveyor belt of the annealing furnace 1 again for transportation and stress relief annealing. The flipping of the copper alloy stamping part can make the originally upward or downward surface alternately in different thermal environments, so that the heat is more evenly distributed on the entire stamping part, so that each part can receive heat more evenly, ensuring that the annealing effect on both sides is uniform, which helps to more effectively eliminate local stress, so that the stress inside the entire stamping part is more evenly released, thereby improving the quality of stress relief annealing and accelerating the speed at which the entire stamping part reaches the annealing temperature. Compared with the case where no flipping is performed,It can reduce the time required to achieve the same annealing effect to a certain extent and improve production efficiency.

[0059] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An online stress relief annealing device for copper alloy stamping parts, comprising an annealing furnace (1), a hot air circulation fan (2) fixed on the surface of the annealing furnace (1), and a conveyor (6) placed at the feeding end of the annealing furnace (1); Features: A loading assembly (3) is arranged above the conveyor (6), and the loading assembly (3) includes a loading base plate (31) arranged above the conveyor (6), a support plate (32) fixed on the lower surface of the loading base plate (31), and a bonding pressure plate (35) arranged in the middle part directly below the support plate (32), springs (33) are fixed between the four corners of the bottom of the bonding pressure plate (35) and the surface of the support plate (32), a yield rack (34) is fixed on the surface of the bonding pressure plate (35), and a yield gear (37) is meshedly connected on the surface of the yield rack (34), a support frame (322) is fixed on the surface of the loading base plate (31), the support frame (322) is rotatably connected to a clamping shaft (321) inside, and a clamping plate (324) is arranged on the outer side of the support frame (322).

2. The copper alloy stamping parts online stress relief annealing equipment according to claim 1, characterized in that: A blocking strip (36) is welded on one side of the surface of the support plate (32) close to the spring 1 (33); a clearance groove matching the clearance rack (34) is provided inside the loading bottom plate (31) and the support plate (32); a driving shaft (38) is fixed inside the clearance gear (37); and the driving shaft (38) is rotatably connected to the surface of the support plate (32) through a rotating bracket; a bevel gear set 1 (39) is fixed at one end of the driving shaft (38); and the bevel gear set 1 (39) A driving shaft (310) is coaxially fixed inside the bevel gear, and the driving shaft (310) is rotatably connected to the surface of the loading base plate (31), a driving gear (311) is fixed to the surface of the driving shaft (310), and the surface of the driving gear (311) is meshedly connected with a driven gear (312) on all sides, and a driven shaft (313) is fixed inside the driven gear (312), and the driven shaft (313) is rotatably connected between the loading base plate (31) and the support plate (32).

3. The copper alloy stamping parts online stress relief annealing equipment according to claim 2, characterized in that: A transmission belt (314) is fixed on the surface of the driven shaft (313), a transmission shaft (315) is coaxially fixed inside the pulley of the transmission belt (314), the transmission shaft (315) is rotatably connected to the surface of the loading base plate (31), a bevel gear set 2 (316) is fixed to one end of the transmission shaft (315), a rotating shaft (317) is coaxially fixed inside the bevel gear of the bevel gear set 2 (316), a fixing frame (318) is fixed on the side of the surface of the support plate (32) close to the rotating shaft (317), and the rotating shaft (317) is rotatably connected inside the fixing frame (318), a transmission gear (319) is fixed on the surface of the rotating shaft (317), and a clamping gear (320) is meshingly connected to the surface of the transmission gear (319).

4. The copper alloy stamping parts online stress relief annealing equipment according to claim 3 is characterized in that: The clamping gear (320) is fixed on the surface of the clamping shaft (321), and rocker arms (323) are symmetrically fixed at both ends of the surface of the clamping shaft (321). One end of the two sets of rocker arms (323) are hinged to the surface of the clamping plate (324), and a connecting rod (325) is hinged to the middle of the surface of the clamping plate (324), and one end of the connecting rod (325) away from the clamping plate (324) is hinged to the top of the support frame (322), and a protective pad (326) is fixed inside the clamping plate (324).

5. The copper alloy stamping parts online stress relief annealing equipment according to claim 2, characterized in that: A transfer assembly (4) is installed at the surface feed end of the annealing furnace (1), and the transfer assembly (4) includes a transfer frame (41) fixed to the surface feed end of the annealing furnace (1), a transfer motor (42) screwed to one side of the surface of the transfer frame (41), and a transfer screw (43) rotatably connected to the inside of the transfer frame (41), a lifting push rod (46) is arranged between the transfer frame (41) and the loading bottom plate (31), a ratchet (410) is fixed to the surface of one end of the drive shaft (38), and a ratchet pawl (49) is meshingly connected to the surface of the ratchet (410).

6. The copper alloy stamping parts online stress relief annealing equipment according to claim 5, characterized in that: The surface of the transfer screw rod (43) is threadedly connected with a transfer screw block (44), the surface of the transfer screw block (44) is fixed with a transfer seat (45), and the lifting push rod (46) is fixed between the transfer seat (45) and the loading bottom plate (31), the inner surface of the transfer frame (41) is screwed to a touch switch (47) on one side close to the annealing furnace (1), and the touch switch (47) is directly opposite to the side of the transfer screw block (44), the surface of the support plate (32) is fixed with a locking frame (48) on one side close to the driving shaft (38), and the ratchet (49) is hinged on the locking frame (48). A second spring (412) is fixed between the ratchet (49) and the locking frame (48), a U-shaped positioning frame (411) is hinged on the surface of the ratchet (49), and the positioning frame (411) is slidably connected to a sliding groove provided inside the locking frame (48), a second electromagnet (414) is fixed inside the positioning frame (411), and a first electromagnet (413) is fixed on the side of the surface of the locking frame (48) close to the second electromagnet (414), and the first electromagnet (413) and the second electromagnet (414) have the same magnetic poles after power is applied.

7. The copper alloy stamping parts online stress relief annealing equipment according to claim 1, characterized in that: A flip assembly (5) is installed inside the annealing furnace (1), and the flip assembly (5) comprises electric push rods (51) connected to both sides of the surface of the annealing furnace (1) by screws, a flip rack (52) fixed at the output end of the electric push rod (51), and a flip gear (54) meshingly connected to the surface of the flip rack (52). A limit slide (53) is fixed on the side of the surface of the annealing furnace (1) close to the flip rack (52), and the flip rack (52) is slidably connected to the inside of the limit slide (53). A flip shaft (55) is fixed inside the flip gear (54), and the flip shaft (55) is rotatably connected to the inside of the annealing furnace (1). Clamps (512) are symmetrically arranged at opposite ends of the two groups of flip shafts (55), and a pressure sensor (513) is fixed on the surface of the clamp (512).

8. The copper alloy stamping parts online stress relief annealing equipment according to claim 7, characterized in that: A flip frame (56) is symmetrically fixed to the opposite end of the two groups of flip shafts (55), a push rod (57) is symmetrically fixed to the opposite side of the two groups of flip frames (56), a reversing seat (58) is symmetrically fixed to the output end of the two groups of push rods (57), and positioning rails (59) are symmetrically fixed to the two sides inside the reversing seat (58), a positioning slide (510) is slidably connected between the two groups of positioning rails (59), and the clamping block (512) is fixed on the surface of the positioning slide (510), and a spring three (511) is fixed between the positioning slide (510) and the reversing seat (58).

9. The copper alloy stamping parts online stress relief annealing equipment according to claim 8, characterized in that: A yield ring frame (514) is fixed on one side of the inner wall of the annealing furnace (1) close to the two groups of turning shafts (55), and swing sliders (515) are slidably connected inside the two groups of the yield ring frames (514). Springs four (516) are symmetrically fixed on both sides of the swing sliders (515), and a pressure sensor two (517) is fixed between the spring four (516) and the yield ring frame (514). A connecting frame (518) is fixed between the two groups of the swing sliders (515), and a blocking plate (521) is fixed at the bottom end of the connecting frame (518). Swing frames (519) are symmetrically fixed at both ends of the surface of the connecting frame (518), and a swing shaft (520) is hinged between the two groups of the swing frames (519), and the swing shaft (520) is fixed inside the annealing furnace (1).

10. A method for using the online stress relief annealing equipment for copper alloy stamping parts according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, starting the conveyor (6) to convey the copper alloy stamping part to the loading position, then starting the lifting push rod (46) to drive the bonding press plate (35) to approach the surface of the copper alloy stamping part, and then the bonding press plate (35) and the copper alloy stamping part are squeezed and contacted, so as to drive the clamping plate (324) and the protective pad (326) to quickly and efficiently transport and clamp the copper alloy stamping part; S2. During the clamping process of the driving clamping plate (324) and the protective pad (326), the driving shaft (38) can be locked by the cooperation of the pawl (49) and the ratchet (410), so as to continuously and stably apply a clamping force to the copper alloy stamping part; S3, after the clamping of the copper alloy stamping part is completed, the copper alloy stamping part is driven to be transported toward the surface of the annealing furnace (1) by starting the transfer motor (42) and the lifting push rod (46), and the touch switch (47) is turned on, and finally the copper alloy stamping part is stably placed on the steel mesh conveyor belt of the annealing furnace (1); S4, as the stress relief annealing treatment proceeds, when the copper alloy stamping part contacts the blocking plate (521), it can compress the second pressure sensor (517) to generate a piezoelectric signal, and then the push rod (57) can be started to drive the clamping block (512) to be tightly attached to the surface of the copper alloy stamping part to complete clamping and fixing; S5. After the copper alloy stamping parts are clamped and fixed, the electric push rod (51) is started to drive the copper alloy stamping parts to turn over on the surface of the steel mesh conveyor belt of the annealing furnace (1), so as to evenly receive heat and ensure the quality of stress relief annealing.

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