Quenching device for fastener

Abstract

The quenching device comprises a box body, and a fixing support is fixedly connected to the inner wall of the side, close to an opening, of the box body. A second hydraulic rod moves a workpiece on a conveying belt to the position between a first ejector rod and a second ejector rod through an elastic clamping mechanism, the first hydraulic rod drives the second ejector rod to abut against the workpiece, the workpiece is clamped and fixed, and then a U-shaped frame is driven by an electric mechanism to move; a U-shaped frame drives a workpiece to sequentially penetrate through a coil and the inner wall of an annular pipe through a first ejector rod and a second ejector rod, when the workpiece penetrates through the coil, the workpiece is heated through the coil, when the heated workpiece passes through the inner side of the annular pipe, the annular pipe sprays cooling liquid through a water spraying hole to cool the workpiece, meanwhile, a waterproof motor drives the workpiece to rotate, and therefore the workpiece is cooled. And therefore, the problems of deformation and cracking caused by non-uniform cooling of the workpiece are effectively solved, and the quenching qualification rate of the fastener is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of fastener production, in particular to a quenching device for fasteners. Background Art

[0002] Fasteners are also called standard parts in the market. They are mechanical components that can mechanically fix or bond two or more components together. When quenching fasteners, a fastener quenching device is required.

[0003] Current fastener quenching devices, such as the automatic quenching device for special fastener production proposed in Publication No.: CN116855694A, include a horizontally placed placement base, a support column is longitudinally fixedly installed at the outer middle position of the upper surface of the placement base, and a top turntable is rotatably installed on the top of the support column. The automatic quenching device for special fastener production adopts a new structural design, so that during the use of the device, the fastener body heated by the induction coil directly falls into the cooling box for comprehensive cooling. This cooling method allows the fastener to fully contact the coolant to achieve the purpose of uniform cooling, and the cooling pipe is used between the first water tank and the second water tank in the cooling box to ensure the temperature of the coolant during circulation. At the same time, when taking materials, the cooling box is moved downward to squeeze the push rod, so that the filter plate moves upward relative to the cooling box, thereby lifting the workpiece out of the water, thereby facilitating material taking.

[0004] When the existing fastener quenching device is in use, the fastener body heated by the induction coil is directly dropped into the cooling box for comprehensive cooling. This cooling method allows the fastener to fully contact the coolant to achieve the purpose of uniform cooling. However, it is found in use that when the fastener is heated, the upper end of the fastener is located inside the storage groove, and when the fastener is long, its bottom end passes through the coil, resulting in the inability to uniformly heat the upper and lower ends of the fastener, and when it falls, it is impossible to control its vertical fall, and the tilt at the falling angle will cause uneven cooling, resulting in a low quenching pass rate of the fastener, which is inconvenient to use. Summary of the invention

[0005] The object of the present invention is to provide a quenching device for fasteners, so as to uniformly heat and cool the workpiece, effectively solve the problem of deformation and cracking caused by uneven cooling of the workpiece, and greatly improve the qualified rate of fastener quenching.

[0006] To achieve the above object, the present invention provides the following technical solution: A quenching device for fasteners, comprising a box body, wherein a fixing bracket is fixedly connected to the inner wall of one side of the box body near the opening, and a U-shaped bracket is slidably arranged on the fixing bracket, wherein: A waterproof motor and a first hydraulic rod are symmetrically installed at both ends of the U-shaped frame, a first push rod is installed at the shaft end of the waterproof motor, and the telescopic end of the first hydraulic rod is rotatably connected to the second push rod. The U-shaped frame is driven to slide by an electric mechanism, and an annular tube and a coil are sequentially sleeved on the outer side of the first push rod, and the annular tube and the coil are fixedly connected to the inner wall of the box, and one side of the annular tube is connected to a water inlet pipe; Water spray holes are equidistantly provided on the inner side of the annular tube, a top frame is provided directly above the box body, and the four corners of the bottom of the top frame are fixedly connected to the box body through support rods, a sliding seat is slidably provided on the inner bottom of the top frame, and a second hydraulic rod is installed at the bottom of the sliding seat, a conveyor belt is provided above the box body near the U-shaped frame, brackets are equidistantly installed on the outer side of the conveyor belt, and an elastic clamping mechanism is installed at the telescopic end of the second hydraulic rod.

[0007] Preferably, a filter rack is installed inside the box body near the bottom of the U-shaped frame, a discharge port is opened at the position of the box body corresponding to the filter rack, a discharge hopper is installed outside the box body corresponding to the discharge port, and a drain pipe is connected to one side of the box body near the bottom.

[0008] Preferably, the filter frame is arranged to be inclined downward toward the discharge port.

[0009] Preferably, the first push rod and the second push rod are both made of ceramic material.

[0010] Preferably, the electric mechanism includes a slide groove, a slide groove is opened on the side of the fixed bracket close to the U-shaped frame, a slider is fixedly connected to the side of the U-shaped frame corresponding to the slide groove, a screw rod threadedly connected to the slider is rotatably connected in the slide groove, a servo motor is installed at one end of the fixed bracket, and the shaft end of the servo motor is fixedly connected to the screw rod.

[0011] Preferably, the slide groove and the slider are both T-shaped, and the outer dimension of the slider matches the inner dimension of the slide groove.

[0012] Preferably, the elastic clamping mechanism includes a clamping frame, the clamping frame is installed at the bottom end of the second hydraulic rod, the clamping frame is symmetrically penetrated by guide rod grooves on both sides, guide rods are penetrated in the guide rod grooves, one end of the guide rod located inside the clamping frame is fixedly connected to a clamping plate, a spring is sleeved on the guide rod between the clamping plate and the inner wall of the clamping frame, and one end of the guide rod located outside the clamping frame is fixedly connected to a baffle.

[0013] Preferably, the guide rod is in the shape of a rectangular column, and the guide rod and the guide rod groove constitute a guide structure.

[0014] Preferably, the bottom end of the clamping plate is bent toward the end of the clamping frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the second hydraulic rod moves the workpiece on the conveyor belt to between the first push rod and the second push rod through the elastic clamping mechanism, so that the first hydraulic rod drives the second push rod to push the workpiece tightly and clamp the workpiece, and then the U-shaped frame is driven to move by the electric mechanism, so that the U-shaped frame drives the workpiece through the first push rod and the second push rod to pass through the inner wall of the coil and the annular tube in sequence, and when passing through the coil, the workpiece is heated by the coil, and when the heated workpiece passes through the inner side of the annular tube, the annular tube sprays coolant through the water spray hole to cool the workpiece, and at the same time, the waterproof motor drives the workpiece to rotate, so as to evenly heat and cool the workpiece, effectively solving the problem of deformation and cracking caused by uneven cooling of the workpiece, and greatly improving the qualified rate of fastener quenching.

[0016] According to the present invention, when the quenched workpiece needs to be replaced, the first hydraulic rod drives the second push rod to loosen the workpiece and make the workpiece fall, and the second hydraulic rod slides toward the conveyor belt. After the clamping frame moves to just above the workpiece on the conveyor belt, the second hydraulic rod drives the clamping frame to move downward. When the clamping frame presses against the workpiece through the clamping plate, the workpiece is pressed between the clamping plates, and the clamping plates clamp the workpiece through the spring. Then the second hydraulic rod slides back, so that the second hydraulic rod drives the workpiece to move between the first push rod and the second push rod. After the workpiece is clamped by the first push rod and the second push rod, the clamping frame is moved up to separate the clamping frame from the workpiece. Through the loading structure, the quenched workpiece can be automatically loaded, instead of manually replacing the workpiece, which effectively improves the work efficiency and saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the side-view stereoscopic structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the U-shaped frame of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping frame of the present invention; Figure 5 For the present invention Figure 1 A schematic diagram of the partially enlarged structure at center A; Figure 6 For the present invention Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0018] In the figure: 1. box body; 2. fixed bracket; 3. U-shaped frame; 4. waterproof motor; 5. first hydraulic rod; 6. first push rod; 7. second push rod; 8. filter frame; 9. discharge port; 10. discharge hopper; 11. drain pipe; 12. slide groove; 13. slider; 14. screw rod; 15. servo motor; 16. annular pipe; 17. coil; 18. water inlet pipe; 19. water spray hole; 20. top frame; 21. support rod; 22. sliding seat; 23. second hydraulic rod; 24. conveyor belt; 25. bracket; 26. clamping frame; 27. guide rod groove; 28. guide rod; 29. ​​clamping plate; 30. spring; 31. baffle. DETAILED DESCRIPTION

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

[0020] See also Figures 1 to 6 The present invention provides a technical solution: a quenching device for fasteners, comprising a box body 1, a fixed bracket 2 is fixedly connected to the inner wall of one side of the box body 1 near the opening, and a U-shaped bracket 3 is slidably arranged on the fixed bracket 2, wherein, A waterproof motor 4 and a first hydraulic rod 5 are symmetrically installed at both ends of the U-shaped frame 3. A first push rod 6 is installed at the shaft end of the waterproof motor 4. The telescopic end of the first hydraulic rod 5 is rotatably connected to a second push rod 7. The U-shaped frame 3 is driven by an electric mechanism to slide. An annular tube 16 and a coil 17 are sequentially sleeved on the outer side of the first push rod 6. The annular tube 16 and the coil 17 are fixedly connected to the inner wall of the box body 1. One side of the annular tube 16 is connected to a water inlet pipe 18; Water spray holes 19 are evenly spaced on the inner side of the annular tube 16, a top frame 20 is arranged directly above the box body 1, and the four corners of the bottom of the top frame 20 are fixedly connected to the box body 1 through support rods 21, a sliding seat 22 is slidably arranged at the inner bottom of the top frame 20, and a second hydraulic rod 23 is installed at the bottom of the sliding seat 22, a conveyor belt 24 is arranged above the box body 1 near the U-shaped frame 3, and brackets 25 are evenly spaced on the outer side of the conveyor belt 24, and an elastic clamping mechanism is installed at the telescopic end of the second hydraulic rod 23; The second hydraulic rod 23 moves the workpiece on the conveyor belt 24 between the first push rod 6 and the second push rod 7 through the elastic clamping mechanism, so that the first hydraulic rod 5 drives the second push rod 7 to press the workpiece and clamp the workpiece. Then, the U-shaped frame 3 is driven to move by the electric mechanism, so that the U-shaped frame 3 drives the workpiece through the first push rod 6 and the second push rod 7 to pass through the inner walls of the coil 17 and the annular tube 16 in sequence. When passing through the coil 17, the workpiece is heated by the coil 17. When the heated workpiece passes through the inner side of the annular tube 16, the annular tube 16 sprays coolant through the water spray hole 19 to cool the workpiece. At the same time, the waterproof motor 4 drives the workpiece to rotate so as to evenly heat and cool the workpiece, effectively solving the problem of deformation and cracking caused by uneven cooling of the workpiece, and greatly improving the qualified rate of fastener quenching.

[0021] See also Figures 1 to 6 A filter frame 8 is installed inside the box body 1 near the bottom of the U-shaped frame 3, a discharge port 9 is opened at the position of the box body 1 corresponding to the filter frame 8, a discharge hopper 10 is installed on the outside of the box body 1 corresponding to the discharge port 9, and a drain pipe 11 is connected to the side of the box body 1 near the bottom. The filter frame 8 is tilted downward in the direction of the discharge port 9. After the quenching of the workpiece is completed, the first hydraulic rod 5 drives the second push rod 7 to loosen the workpiece, so that the workpiece falls on the filter frame 8, and the coolant passes through the filter frame 8 and is discharged from the drain pipe 11, and the workpiece flows along the inclined filter frame 8 toward the discharge port 9, and then is discharged through the discharge port 9 and the discharge hopper 10, so as to facilitate the discharge of the quenched workpiece.

[0022] See also Figures 1 to 6 The first push rod 6 and the second push rod 7 are both made of ceramic material. The electric mechanism includes a slide groove 12. The fixed bracket 2 is provided with a slide groove 12 on the side close to the U-shaped frame 3. The U-shaped frame 3 is fixedly connected with a slider 13 on the side corresponding to the slide groove 12. A screw rod 14 threadedly connected to the slider 13 is rotatably connected in the slide groove 12. A servo motor 15 is installed at one end of the fixed bracket 2. The shaft end of the servo motor 15 is fixedly connected to the screw rod 14. The slide groove 12 and the slider 13 are both T-shaped, and the external dimension of the slider 13 coincides with the internal dimension of the slide groove 12. When it is necessary to control the sliding of the U-shaped frame 3, the screw rod 14 is driven to rotate by the servo motor 15. The screw rod 14 drives the slider 13 to move in the slide groove 12 through a threaded connection, thereby driving the U-shaped frame 3 to slide.

[0023] See also Figures 1 to 6The elastic clamping mechanism includes a clamping frame 26, and a clamping frame 26 is installed at the bottom end of the second hydraulic rod 23. The clamping frame 26 is symmetrically penetrated with guide rod grooves 27 on both sides, and a guide rod 28 is penetrated in the guide rod groove 27. The guide rod 28 is located in the clamping frame 26 and one end is fixedly connected to a clamping plate 29. A spring 30 is sleeved on the guide rod 28 between the clamping plate 29 and the inner wall of the clamping frame 26. The guide rod 28 is located outside the clamping frame 26 and one end is fixedly connected to a baffle 31. The guide rod 28 is a rectangular column, and the guide rod 28 and the guide rod groove 27 constitute a guiding structure. The bottom end of the clamping plate 29 is bent toward the end of the clamping frame 26. When the quenched workpiece needs to be replaced, the first hydraulic rod 5 drives the second push rod 7 to loosen the workpiece and make the workpiece fall. At the same time, the second hydraulic rod 23 slides toward the conveyor belt 24 (its electric sliding structure is an existing common technology, because it is consistent with the present invention). The invention has nothing to do with the technical problem to be solved in the proposal, so it is directly quoted without explaining its structure and working principle). After the clamping frame 26 moves to the top of the workpiece on the conveyor belt 24, the second hydraulic rod 23 drives the clamping frame 26 to move downward. When the clamping frame 26 presses against the workpiece through the clamping plate 29, the workpiece is pressed between the clamping plates 29, and the clamping plate 29 clamps the workpiece through the spring 30. Then, the second hydraulic rod 23 slides back, so that the second hydraulic rod 23 drives the workpiece to move between the first push rod 6 and the second push rod 7. After the workpiece is clamped by the first push rod 6 and the second push rod 7, the clamping frame 26 is moved upward to separate the clamping frame 26 from the workpiece. Through this loading structure, the quenched workpiece can be automatically loaded, instead of manually replacing the workpiece, which effectively improves the work efficiency and saves labor costs.

[0024] Working principle: This is a quenching device for fasteners. The second hydraulic rod 23 moves the workpiece on the conveyor belt 24 between the first push rod 6 and the second push rod 7 through the elastic clamping mechanism, so that the first hydraulic rod 5 drives the second push rod 7 to press the workpiece tightly and clamp the workpiece. Then, the U-shaped frame 3 is driven by the electric mechanism to move, so that the U-shaped frame 3 drives the workpiece through the first push rod 6 and the second push rod 7 to pass through the inner wall of the coil 17 and the annular tube 16 in sequence. When passing through the coil 17, the workpiece is heated by the coil 17. When the workpiece passes through the inner side of the annular tube 16, the annular tube 16 sprays coolant through the water spray hole 19 to cool the workpiece. At the same time, the waterproof motor 4 drives the workpiece to rotate so as to evenly heat and cool the workpiece, effectively solving the problem of deformation and cracking caused by uneven cooling of the workpiece, greatly improving the qualified rate of fastener quenching, and after the workpiece quenching is completed, the first hydraulic rod 5 drives the second push rod 7 to loosen the workpiece, so that the workpiece falls on the filter frame 8, and the coolant passes through the filter frame 8 and is discharged from the drain pipe 11, and the workpiece is discharged from the drain pipe 11. The quenched workpiece is discharged from the discharge port 9 and the discharge hopper 10, so that the quenched workpiece can be discharged easily. When the quenched workpiece needs to be replaced, the first hydraulic rod 5 drives the second push rod 7 to loosen the workpiece and make it fall. At the same time, the second hydraulic rod 23 slides toward the conveyor belt 24. After the clamping frame 26 moves to the top of the workpiece on the conveyor belt 24, the second hydraulic rod 23 drives the clamping frame 26 to move downward. When the clamping frame 26 presses against the workpiece through the clamping plate 29, the workpiece It is pressed between the clamping plates 29, and the clamping plates 29 clamp the workpiece through the spring 30, and then the second hydraulic rod 23 slides back, so that the second hydraulic rod 23 drives the workpiece to move between the first push rod 6 and the second push rod 7. After the workpiece is clamped by the first push rod 6 and the second push rod 7, the clamping frame 26 is moved up to separate the clamping frame 26 from the workpiece. Through this loading structure, the quenched workpiece can be automatically loaded, instead of manually replacing the workpiece, which effectively improves work efficiency and saves labor costs.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quenching device for fasteners, comprising a housing (1), characterized in that: A fixed bracket (2) is fixedly connected to the inner wall of one side of the box body (1) near the opening, and a U-shaped bracket (3) is slidably arranged on the fixed bracket (2), wherein: A waterproof motor (4) and a first hydraulic rod (5) are symmetrically mounted at both ends of the U-shaped frame (3); a first push rod (6) is mounted on the shaft end of the waterproof motor (4); the telescopic end of the first hydraulic rod (5) is rotatably connected to a second push rod (7); the U-shaped frame (3) is driven to slide by an electric mechanism; an annular tube (16) and a coil (17) are sequentially sleeved on the outer side of the first push rod (6); the annular tube (16) and the coil (17) are both fixedly connected to the inner wall of the box body (1); and one side of the annular tube (16) is connected to a water inlet pipe (18); The inner side of the annular tube (16) is provided with water spray holes (19) at equal intervals. A top frame (20) is provided directly above the box body (1). The four corners of the bottom of the top frame (20) are fixedly connected to the box body (1) via support rods (21). A sliding seat (22) is slidably provided at the inner bottom of the top frame (20). A second hydraulic rod (23) is installed at the bottom of the sliding seat (22). A conveyor belt (24) is provided above the box body (1) near the U-shaped frame (3). Brackets (25) are installed at equal intervals on the outer side of the conveyor belt (24). An elastic clamping mechanism is installed at the telescopic end of the second hydraulic rod (23).

2. The fastener quenching device according to claim 1, characterized in that: A filter frame (8) is installed inside the box body (1) near the bottom of the U-shaped frame (3); a discharge port (9) is opened at a position of the box body (1) corresponding to the filter frame (8); a discharge hopper (10) is installed outside the box body (1) corresponding to the discharge port (9); and a drainage pipe (11) is connected to one side of the box body (1) near the bottom.

3. The fastener quenching device according to claim 2, characterized in that: The filter frame (8) is arranged to be inclined downwards towards the discharge port (9).

4. The fastener quenching device according to claim 1, characterized in that: The first push rod (6) and the second push rod (7) are both made of ceramic material.

5. The fastener quenching device according to claim 1, characterized in that: The electric mechanism comprises a slide groove (12), the slide groove (12) is provided on a side of the fixed bracket (2) close to the U-shaped bracket (3), a slider (13) is fixedly connected to a side of the U-shaped bracket (3) corresponding to the slide groove (12), a screw rod (14) threadedly connected to the slider (13) is rotatably connected in the slide groove (12), a servo motor (15) is installed at one end of the fixed bracket (2), and the shaft end of the servo motor (15) is fixedly connected to the screw rod (14).

6. The fastener quenching device according to claim 5, characterized in that: The slide groove (12) and the slider (13) are both T-shaped, and the outer dimensions of the slider (13) match the inner dimensions of the slide groove (12).

7. The fastener quenching device according to claim 1, characterized in that: The elastic clamping mechanism comprises a clamping frame (26), the clamping frame (26) being mounted at the bottom end of the second hydraulic rod (23), guide rod grooves (27) symmetrically extending through both sides of the clamping frame (26), guide rods (28) extending through the guide rod grooves (27), one end of the guide rod (28) located inside the clamping frame (26) being fixedly connected to a clamping plate (29), a spring (30) being sleeved on the guide rod (28) between the clamping plate (29) and the inner wall of the clamping frame (26), and one end of the guide rod (28) located outside the clamping frame (26) being fixedly connected to a baffle (31).

8. The fastener quenching device according to claim 7, characterized in that: The guide rod (28) is in the shape of a rectangular column, and the guide rod (28) and the guide rod groove (27) form a guide structure.

9. The fastener quenching device according to claim 7, characterized in that: The bottom end of the clamping plate (29) is bent toward the end of the clamping frame (26).

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