Quenching pressing die quick-changing device

Abstract

The utility model relates to a quick-changing device for a quenching pressing die, and belongs to the field of machine manufacturing. Comprising a base, a shifting ring, a plurality of clamping jaws, a connecting ring, an adjusting ring, an oil blocking mechanism, a die pressing mechanism, a clamping jaw adjusting mechanism, an adjusting ring positioning mechanism and a shell. The multiple clamping jaws are arranged at the top end of the base in a surrounding and rotating mode, the shifting ring is installed at the top end of the base, the clamping jaws are arranged below the shifting ring, the connecting ring is arranged on the peripheral face of the base and the peripheral face of the shifting ring in a sleeving mode, and the top end and the bottom end of the connecting ring are connected with the shell and the oil blocking mechanism in a one-to-one correspondence mode. The connecting ring is connected with the top end of the oil blocking mechanism through the adjusting ring positioning mechanism, the clamping jaw adjusting mechanism penetrates through the connecting ring and is connected with the shifting ring, the shell is arranged above the shifting ring and the connecting ring, the die pressing mechanism is arranged in a space defined by the shell, the shifting ring and the oil blocking mechanism, the clamping jaw is rotatably connected with the die pressing mechanism, and the top end of the die pressing mechanism is connected with the shell. The utility model is favorable for improving the replacement efficiency of the pressure quenching die.

Description

Technical Field

[0001] The utility model relates to the field of mechanical manufacturing, in particular to a quenching die quick-change device. Background Art

[0002] Carburizing and quenching is a treatment process that carburizes the surface of low-carbon carburizing steel to make it a high-carbon state and harden the surface. Thermal deformation is inevitable during the heating and quenching process due to thermal stress and structural transformation stress. In production, flat disc gears and thin-walled rings need to be quenched by mold-limited quenching (i.e., press quenching). Press quenching is a quenching process that heats the parts by placing them in a heat treatment furnace, applying external force and cooling them at the same time through a special quenching press and die. It is a quenching process specifically used to reduce the deformation of complex-shaped workpieces during heat treatment. It is used in various fields, such as automobile manufacturing, aerospace, and machinery manufacturing. The inner and outer pressure rings and expanders (or core expansion) in the die are used to correct the warping and flatness of the parts and the ovality of the inner hole. Compared with the free deformation of direct oil quenching, it has an advantage in ensuring the consistency of thermal deformation.

[0003] Traditional die installation uses a long screw rod to pass through the cylinder sleeve of the machine tool, and the external thread at the end of the screw rod is connected to the two internal threads of the countersunk holes of the quenching die. With the complex machine tool structure, it is impossible to observe whether the internal external thread and the screw hole are completely aligned during the installation process. Blind installation requires the operator to have certain installation experience and proficiency, and it takes a certain amount of time to pre-tighten and loosen the bolts.

[0004] However, in the mass production process of continuous heat treatment furnaces (carburizing push-plate furnaces, ring carburizing furnaces, etc.), the control requirements for the cycle time of press quenching are relatively strict. If the press quenching cannot be completed within the cycle time, the continuous production line will be suspended or interrupted. In addition, since the quenching die is specially matched with the parts, the production changeover of different products must be completed in a short time. The efficiency of die replacement restricts the production capacity of the continuous heat treatment production line and is often the bottleneck in the heat treatment continuous furnace process. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a quenching die quick-change device to solve the above-mentioned problem.

[0006] The utility model solves the above-mentioned technical problem with the following technical solutions: A quenching die quick-change device comprises: a base, a toggle ring, a plurality of claws, a connecting ring, an adjusting ring, an oil baffle mechanism, a die mechanism, a claw adjusting mechanism, an adjusting ring positioning mechanism and a shell; a plurality of the claws are arranged around and rotatably mounted on the top of the base, the toggle ring is mounted on the top of the base, the claws are arranged below the toggle ring, the connecting ring is sleeved on the outer circumference of the base and the toggle ring, and the top and bottom ends are connected to the shell and the oil baffle mechanism in a one-to-one correspondence, the adjusting ring is sleeved on the connecting ring and the outer circumference of the oil baffle mechanism, and is connected to the top of the oil baffle mechanism through the adjusting ring positioning mechanism, the claw adjusting mechanism passes through the connecting ring and is connected to the toggle ring, the shell is arranged above the toggle ring and the connecting ring, the die mechanism is arranged in a space surrounded by the shell, the toggle ring, the base and the oil baffle mechanism, the claws are rotatably connected to the die mechanism, and the top of the die mechanism is connected to the shell.

[0007] The beneficial effects of the utility model are as follows: the claw adjustment mechanism is connected with the toggle ring, which is conducive to toggling the toggle ring clockwise or counterclockwise, thereby causing the plurality of claws to rotate on the base, thereby changing the clamping state between the claw and the die mechanism, and realizing the padlocking and loosening of the claw and the die mechanism. When the claw and the die mechanism are not clamped, they are in a loosened state, which is conducive to the rapid replacement of the press quenching die; when the claw and the die mechanism are clamped, they are in a padlocked state, which is conducive to the pressure generated by the cylinder piston rod in the shell being transmitted to the press quenching die through the die mechanism, and the die change time is shortened by increasing the switching speed of various products during the press quenching process, thereby improving the press quenching production efficiency of the continuous heat treatment furnace. The device has strong versatility and reliable structural design, and avoids the problem of being unable to install and demold due to wear of the bolt threads in the prior art.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the base is an annular plate structure, the toggle ring is an annular structure with a plurality of claw accommodating holes arranged at the bottom end, and the plurality of claws correspond to each other one by one and are adapted to be arranged in the plurality of claw accommodating holes.

[0010] The beneficial effect of adopting the above further scheme is: setting the claw in the claw accommodating hole is conducive to the claw accommodating hole driving the claw to rotate when the claw adjustment mechanism drives the toggle ring to rotate clockwise or counterclockwise, thereby realizing the claw extending and retracting state, thereby changing the clamping state between the claw and the die pressing mechanism.

[0011] Furthermore, the claw adjustment mechanism includes: a lever, a positioning sleeve, a compression spring and a first positioning plate, the positioning sleeve is an annular structure, the compression spring is arranged inside the positioning sleeve, the positioning sleeve is detachably connected to the first positioning plate, the first positioning plate is arranged on the outer peripheral surface of the connecting ring, the lever passes through the compression spring, the positioning sleeve, the first positioning plate, the connecting ring, and is connected to the side wall of the driving ring.

[0012] The beneficial effect of adopting the above further scheme is: by pulling the positioning sleeve out of the first positioning plate, the freedom of the lever to be moved in the first positioning plate is provided, thereby making the lever ring rotate clockwise or counterclockwise, and the compression spring is conducive to reinserting the positioning sleeve into the first positioning plate by utilizing the rebound force of the spring after it is moved into place.

[0013] Further, the first positioning plate includes: a positioning plate body, a plurality of connecting holes and a second adjustment hole, the second adjustment hole and the connecting hole are both through holes arranged on the positioning plate body, the second adjustment hole is a horizontally arranged "8"-shaped structure, and the plurality of connecting holes are arranged around the second adjustment hole. The positioning plate body is a plate-like structure arranged on the outer peripheral surface of the connecting ring, and a plurality of connecting parts pass through the plurality of connecting holes in a one-to-one correspondence and are connected to the side wall of the connecting ring. The positioning sleeve is adapted to be clamped with the left end or the right end of the second adjustment hole, and the shift rod passes through the second adjustment hole.

[0014] The beneficial effect of adopting the above further scheme is that the structure of the second adjustment hole is conducive to the lever being moved left and right therein, thereby driving the toggle ring to rotate clockwise or counterclockwise, and is also conducive to the positioning sleeve remaining engaged with the second adjustment hole, avoiding displacement of the toggle ring after being moved into place.

[0015] Furthermore, the oil shielding mechanism includes: an oil shielding hood, an oil shielding hood door and an adjustment handle, wherein the oil shielding hood door is a plate-like structure slidably connected to the inner wall of the oil shielding hood, and the adjustment handle passes through the oil shielding hood and is connected to the oil shielding hood door.

[0016] The beneficial effect of adopting the above further solution is that the adjusting handle is conducive to driving the oil shield door to slide on the inner wall of the oil shield, so that the oil shield is opened and closed to achieve the effect of oil shielding.

[0017] Furthermore, the oil shield comprises an oil shield body and a first adjustment hole, wherein the first adjustment hole is an arc-shaped through hole arranged on the oil shield body, the oil shield door is slidably connected to the inner wall of the oil shield body, and the adjustment handle passes through the first adjustment hole.

[0018] The beneficial effect of adopting the above further solution is that the adjusting handle is conducive to driving the oil shield door to slide on the inner wall of the oil shield body, thereby opening and closing the first adjustment hole to achieve the oil shielding effect.

[0019] Furthermore, the adjusting ring positioning mechanism includes: a positioning bolt, a second positioning plate and a positioning locking plate, the positioning locking plate is a plate-like structure with a longitudinal cross-section of "7" shape, the bottom end of the positioning locking plate is provided with a U-shaped groove opening downward, the second positioning plate is a plate-like structure with a U-shaped groove opening upward at the top end, the positioning locking plate is provided on the outer peripheral surface of the adjusting ring, the second positioning plate is provided on the end of the vertical section of the positioning locking plate away from the adjusting ring, the horizontal section of the positioning locking plate is provided to the side away from the adjusting ring, and is adapted to be clamped with the U-shaped groove on the second positioning plate, the positioning bolt passes through the second positioning plate, the U-shaped groove on the positioning locking plate and the adjusting ring in sequence, and is connected to the top of the oil shield body.

[0020] The beneficial effect of adopting the above further solution is that the positioning bolt cooperates with the second positioning plate and the positioning locking piece, which is conducive to limiting the rotation of the adjustment ring and improving the stability of the entire device.

[0021] Furthermore, the die mechanism comprises: an outer spacer ring, an inner spacer ring, an outer die connecting sleeve, an inner die connecting sleeve, an outer die, an inner die and a plurality of inner and outer spacer ring locking plates; the outer spacer ring, the inner spacer ring, the outer die connecting sleeve, the inner die connecting sleeve, the outer die and the inner die are all annular structures, the outer spacer ring is arranged on the outer circumferential surface of the inner spacer ring, the outer wall of the inner die connecting sleeve is clamped with the inner wall of the outer die connecting sleeve, the clamping claw is rotatably connected with the outer wall of the outer die connecting sleeve, the top end of the outer die connecting sleeve abuts against the outer spacer ring, and the bottom end is fixedly connected with the outer die, the top end of the inner die connecting sleeve abuts against the inner spacer ring, and the bottom end is fixedly connected with the inner die, a plurality of inner and outer spacer ring locking plates are arranged around the top ends of the outer spacer ring and the inner spacer ring, and the top ends of the inner and outer spacer ring locking plates are connected with the cylinder piston rod arranged in the housing.

[0022] The beneficial effect of adopting the above-mentioned further scheme is that the outer spacer ring and the inner spacer ring are conducive to transmitting the power of the cylinder piston rod arranged in the shell to the outer die connecting sleeve and the inner die connecting sleeve, and then to the outer die and the inner die, thereby realizing the crimping of the press quenching die and preventing the press quenching die from warping and deformation during the cooling process.

[0023] Furthermore, a first protrusion and a second protrusion are correspondingly arranged on the outer wall and the inner wall of the outer die connecting sleeve, and a third protrusion is arranged on the outer wall of the inner die connecting sleeve. The first protrusion, the second protrusion and the third protrusion are all annular structures, and the top of the claw is rotatably engaged with the bottom end of the first protrusion, and the top of the second protrusion is engaged with the bottom end of the third protrusion.

[0024] The beneficial effects of adopting the above-mentioned further scheme are: the first protrusion is conducive to forming a rotatable connection with the claw, that is, it forms a locking connection with the first protrusion during the rotation of the claw, thereby locking the die mechanism on the claw, thereby improving the replacement efficiency of the press-quenching die; the locking connection between the second protrusion and the third protrusion is conducive to transferring the locking state from the outer die to the inner die, thereby making the press-quenching die in a fully replaceable state.

[0025] Furthermore, it also includes a press-quenching die, and the bottom ends of the outer die and the inner die are press-connected with the press-quenching die.

[0026] The beneficial effect of adopting the above further solution is that it is conducive to transmitting the power of the cylinder piston rod arranged in the housing to the press quenching die, thereby preventing the press quenching die from warping and deformation during the cooling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A cross-sectional view of the overall structure provided by an embodiment of the utility model;

[0028] Figure 2 A schematic diagram of a clamping claw in a released state provided in an embodiment of the utility model;

[0029] Figure 3 A schematic diagram of a claw padlock state provided in an embodiment of the utility model;

[0030] Figure 4 A top view of a toggle ring provided in an embodiment of the utility model;

[0031] Figure 5 A front view of a toggle ring provided in an embodiment of the utility model;

[0032] Figure 6 A schematic diagram of the structure of a first positioning plate provided in an embodiment of the utility model;

[0033] Figure 7 A schematic diagram of the oil shield structure provided by an embodiment of the utility model;

[0034] Figure 8 A schematic diagram of the structure of a second positioning plate provided in an embodiment of the utility model;

[0035] Fig. 9 A front view of a positioning lock piece provided in an embodiment of the utility model;

[0036] Fig.10 A side view of a positioning lock piece provided in an embodiment of the utility model;

[0037] Fig.11 A schematic diagram of the structure of the outer die connection sleeve provided in an embodiment of the utility model;

[0038] Fig.12 A schematic diagram of the structure of the inner compression mold connecting sleeve provided in an embodiment of the utility model.

[0039] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0040] 1. Base; 2. Toggle ring; 3. Claw; 4. Connecting ring; 5. Adjusting ring; 6. Oil blocking mechanism; 7. Pressing die mechanism; 8. Claw adjusting mechanism; 9. Adjusting ring positioning mechanism; 10. Shell; 11. Pressing die; 21. Claw receiving hole; 61. Oil blocking cover; 62. Oil blocking cover door; 63. Adjusting handle; 71. Outer spacer ring; 72. Inner spacer ring; 73. Outer pressing die connecting sleeve; 74. Inner pressing die connecting sleeve; 75. Outer pressing die ; 76, inner die; 77, inner and outer spacer ring lock pieces; 81, lever; 82, positioning sleeve; 83, compression spring; 84, first positioning plate; 91, positioning bolt; 92, second positioning plate; 93, positioning lock piece; 611, oil shield body; 612, first adjustment hole; 731, first protrusion; 732, second protrusion; 741, third protrusion; 841, positioning plate body; 842, connecting hole; 843, second adjustment hole. DETAILED DESCRIPTION

[0041] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0042] like Figures 1 to 3As shown, a quenching die quick-change device comprises: a base 1, a toggle ring 2, a plurality of claws 3, a connecting ring 4, an adjusting ring 5, an oil retaining mechanism 6, a die mechanism 7, a claw adjusting mechanism 8, an adjusting ring positioning mechanism 9 and a shell 10; the plurality of claws 3 are arranged around and rotatably mounted on the top of the base 1, the toggle ring 2 is mounted on the top of the base 1, the claws 3 are arranged below the toggle ring 2, the connecting ring 4 is sleeved on the outer circumference of the base 1 and the toggle ring 2, and the top and bottom ends are connected to the shell 10 and the oil retaining mechanism 6 one by one, the The adjusting ring 5 is sleeved on the outer circumference of the connecting ring 4 and the oil-blocking mechanism 6, and is connected to the top of the oil-blocking mechanism 6 through the adjusting ring positioning mechanism 9. The claw adjusting mechanism 8 passes through the connecting ring 4 and is connected to the shifting ring 2. The shell 10 is arranged above the shifting ring 2 and the connecting ring 4. The die mechanism 7 is arranged in the space surrounded by the shell 10, the shifting ring 2, the base 1 and the oil-blocking mechanism 6. The claw 3 is rotatably connected to the die mechanism 7, and the top of the die mechanism 7 is connected to the shell 10.

[0043] Among them, it should be noted that: in the preferred embodiment of the utility model, the connecting ring 4 and the adjusting ring 5 are both annular plate structures, and the lower edge of the outer peripheral surface of the connecting ring 4 is provided with an annular protrusion protruding outward, and the longitudinal cross-section of the adjusting ring 5 is a "7" shape, and the horizontal section of the adjusting ring 5 is adapted to be engaged with the annular protrusion of the connecting ring 4; the claw 3 is rotatably mounted on the base 1 by screws or bolts.

[0044] The beneficial effects of the utility model are as follows: the claw adjustment mechanism is connected with the toggle ring, which is conducive to toggling the toggle ring clockwise or counterclockwise, thereby causing the plurality of claws to rotate on the base, thereby changing the clamping state between the claw and the die mechanism, and realizing the padlocking and loosening of the claw and the die mechanism. When the claw and the die mechanism are not clamped, they are in a loosened state, which is conducive to the rapid replacement of the press quenching die; when the claw and the die mechanism are clamped, they are in a padlocked state, which is conducive to the pressure generated by the cylinder piston rod in the shell being transmitted to the press quenching die through the die mechanism, and the die change time is shortened by increasing the switching speed of various products during the press quenching process, thereby improving the press quenching production efficiency of the continuous heat treatment furnace. The device has strong versatility and reliable structural design, and avoids the problem of being unable to install and demold due to wear of the bolt threads in the prior art.

[0045] Preferably, Figure 1 , Figure 4 and Figure 5 As shown, the base 1 is an annular plate structure, the dial ring 2 is an annular structure with a plurality of claw accommodating holes 21 at the bottom end, and the plurality of claws 3 are arranged in one-to-one correspondence and adapted in the plurality of claw accommodating holes 21 .

[0046] It should be noted that: in a preferred embodiment of the present utility model, the claw receiving hole 21 is a through hole extending from the inner diameter to the outer diameter of the shifting ring 2 .

[0047] The beneficial effect of adopting the above-mentioned preferred scheme is that the claw is set in the claw accommodating hole, which is conducive to the claw accommodating hole driving the claw to rotate when the claw adjustment mechanism drives the toggle ring to rotate clockwise or counterclockwise, thereby realizing the claw extending and retracting state, and then changing the clamping state between the claw and the die pressing mechanism.

[0048] Preferably, Figure 1 As shown, the claw adjustment mechanism 8 includes: a shift rod 81, a positioning sleeve 82, a compression spring 83 and a first positioning plate 84, the positioning sleeve 82 is an annular structure, the compression spring 83 is arranged inside the positioning sleeve 82, the positioning sleeve 82 is detachably connected to the first positioning plate 84, the first positioning plate 84 is arranged on the outer peripheral surface of the connecting ring 4, the shift rod 81 passes through the compression spring 83, the positioning sleeve 82, the first positioning plate 84, the connecting ring 4, and is connected to the side wall of the shift ring 2.

[0049] The beneficial effect of adopting the above-mentioned preferred scheme is: by pulling the positioning sleeve out of the first positioning plate, the freedom of the lever to be moved in the first positioning plate is provided, thereby making the lever ring rotate clockwise or counterclockwise, and the compression spring is conducive to reinserting the positioning sleeve into the first positioning plate by utilizing the rebound force of the spring after it is moved into place.

[0050] Preferably, Figure 6 As shown, the first positioning plate 84 includes: a positioning plate body 841, a plurality of connecting holes 842 and a second adjustment hole 843, the second adjustment hole 843 and the connecting hole 842 are both through holes arranged on the positioning plate body 841, the second adjustment hole 843 is a horizontally arranged "8"-shaped structure, and the plurality of connecting holes 842 are arranged around the second adjustment hole 843. The positioning plate body 841 is a plate-like structure arranged on the outer peripheral surface of the connecting ring 4, and a plurality of connecting parts pass through the plurality of connecting holes 842 in a one-to-one manner and are connected to the side wall of the connecting ring 4. The positioning sleeve 82 is adapted to be clamped with the left end or the right end of the second adjustment hole 843, and the shift rod 81 passes through the second adjustment hole 843.

[0051] It should be noted that: the second adjustment hole 843 is a horizontally arranged "8"-shaped structure, that is, both ends are circular holes with larger diameters, and the two circular holes are connected by a strip hole;

[0052] The connecting piece is a bolt or a screw.

[0053] The beneficial effect of adopting the above preferred scheme is that the structure of the second adjustment hole is conducive to the lever being moved left and right therein, thereby driving the toggle ring to rotate clockwise or counterclockwise, and is also conducive to the positioning sleeve remaining engaged with the second adjustment hole, avoiding displacement of the toggle ring after being moved into place.

[0054] Preferably, Figure 1 As shown, the oil blocking mechanism 6 includes: an oil blocking cover 61, an oil blocking cover door 62 and an adjustment handle 63. The oil blocking cover door 62 is a plate-like structure slidably connected to the inner wall of the oil blocking cover 61. The adjustment handle 63 passes through the oil blocking cover 61 and is connected to the oil blocking cover door 62.

[0055] The beneficial effect of adopting the above preferred solution is that the adjusting handle is conducive to driving the oil shield door to slide on the inner wall of the oil shield, so that the oil shield is opened and closed to achieve the effect of oil shielding.

[0056] Preferably, Figure 7 As shown, the oil shield 61 includes an oil shield body 611 and a first adjustment hole 612 , wherein the first adjustment hole 612 is an arc-shaped through hole arranged on the oil shield body 611 , the oil shield door 62 is slidably connected to the inner wall of the oil shield body 611 , and the adjustment handle 63 passes through the first adjustment hole 612 .

[0057] The beneficial effect of adopting the above preferred solution is that the adjusting handle is conducive to driving the oil shield door to slide on the inner wall of the oil shield body, thereby opening and closing the first adjustment hole to achieve the oil shielding effect.

[0058] Preferably, Figure 1 , Figure 8 , Fig. 9 and Fig.10 As shown, the adjusting ring positioning mechanism 9 includes: a positioning bolt 91, a second positioning plate 92 and a positioning locking plate 93, the positioning locking plate 93 is a plate-like structure with a longitudinal cross-section of "7", the bottom end of the positioning locking plate 93 is provided with a U-shaped groove opening downward, the second positioning plate 92 is a plate-like structure with a U-shaped groove opening upward at the top, the positioning locking plate 93 is arranged on the outer peripheral surface of the adjusting ring 5, the second positioning plate 92 is arranged at the end of the vertical section of the positioning locking plate 93 away from the adjusting ring 5, the horizontal section of the positioning locking plate 93 is arranged toward the side away from the adjusting ring 5, and is adapted to be clamped with the U-shaped groove on the second positioning plate 92, the positioning bolt 91 passes through the second positioning plate 92, the U-shaped groove on the positioning locking plate 93 and the adjusting ring 5 in sequence, and is connected to the top of the oil shield cover body 611.

[0059] The beneficial effect of adopting the above preferred solution is that the positioning bolt cooperates with the second positioning plate and the positioning lock piece, which is conducive to limiting the rotation of the adjustment ring and improving the stability of the entire device.

[0060] Preferably, Figure 1 As shown, the die mechanism 7 includes: an outer spacer ring 71, an inner spacer ring 72, an outer die connecting sleeve 73, an inner die connecting sleeve 74, an outer die 75, an inner die 76 and a plurality of inner and outer spacer ring locking pieces 77; the outer spacer ring 71, the inner spacer ring 72, the outer die connecting sleeve 73, the inner die connecting sleeve 74, the outer die 75 and the inner die 76 are all annular structures, the outer spacer ring 71 is sleeved on the outer circumferential surface of the inner spacer ring 72, the outer wall of the inner die connecting sleeve 74 is aligned with the outer die connecting sleeve 73 The inner wall is clamped, and the claw 3 is rotatably connected to the outer wall of the outer die connecting sleeve 73. The top end of the outer die connecting sleeve 73 abuts against the outer spacer ring 71, and the bottom end is fixedly connected to the outer die 75. The top end of the inner die connecting sleeve 74 abuts against the inner spacer ring 72, and the bottom end is fixedly connected to the inner die 76. A plurality of inner and outer spacer ring locking sheets 77 are arranged around the top ends of the outer spacer ring 71 and the inner spacer ring 72, and the top ends of the inner and outer spacer ring locking sheets 77 are connected to the cylinder piston rod arranged in the housing 10.

[0061] The beneficial effect of adopting the above-mentioned preferred scheme is that the outer spacer ring and the inner spacer ring are conducive to transmitting the power of the cylinder piston rod arranged in the shell to the outer die connecting sleeve and the inner die connecting sleeve, and then to the outer die and the inner die, thereby realizing the crimping of the press quenching die and preventing the press quenching die from warping and deformation during the cooling process.

[0062] Preferably, Fig.11 and Fig.12 As shown, the outer wall and the inner wall of the outer die connecting sleeve 73 are respectively provided with a first protrusion 731 and a second protrusion 732, and the outer wall of the inner die connecting sleeve 74 is provided with a third protrusion 741. The first protrusion 731, the second protrusion 732 and the third protrusion 741 are all annular structures, and the top of the claw 3 is rotatably engaged with the bottom end of the first protrusion 731, and the top of the second protrusion 732 is engaged with the bottom end of the third protrusion 741.

[0063] The beneficial effects of adopting the above-mentioned preferred scheme are: the first protrusion is conducive to forming a rotatable connection with the claw, that is, it forms a locking connection with the first protrusion during the rotation of the claw, thereby locking the die mechanism on the claw, thereby improving the replacement efficiency of the press-quenching die; the locking connection between the second protrusion and the third protrusion is conducive to transferring the locking state from the outer die to the inner die, thereby making the press-quenching die in a fully replaceable state.

[0064] Preferably, Figure 1 As shown, a press-quenching die 11 is also included, and the bottom ends of the outer press die 75 and the inner press die 76 are press-connected with the press-quenching die 11.

[0065] The beneficial effect of adopting the above preferred solution is that it is conducive to transmitting the power of the cylinder piston rod arranged in the housing to the press quenching die, thereby preventing the press quenching die from warping and deformation during the cooling process.

[0066] The working process of the utility model is described below by an embodiment:

[0067] like Figures 1 to 12 As shown, when the press-quenching die 11 needs to be replaced, the positioning sleeve 82 is first pulled out from one end of the second adjustment hole 843 in the direction away from the connecting ring 4. At this time, the lever 81 is in an active state. The lever 81 moves in the second adjustment hole 843, which will drive the toggle ring 2 to rotate clockwise or counterclockwise. During the rotation of the toggle ring 2, the claw receiving hole 21 will rotate with the toggle ring 2, and the side wall of the claw receiving hole 21 will apply a force to the end of the claw 3. Under this force, the claw 3 rotates in the claw receiving hole 21. Finally, the front end of the claw 3 extends beyond the base 1 and is engaged with the bottom end of the first protrusion 731. At this time, the positioning sleeve 82 moves from one end of the second adjustment hole 843 to the other end along with the lever 81, and is re-engaged with the second adjustment hole 843. At the same time, the claw 3 forms a padlock state on the die mechanism 7, that is, the cylinder piston rod arranged in the shell cannot push the outer die connecting sleeve 73 and the inner die connecting sleeve 74 to move downward, so the downward pressure cannot be applied to the quenching mold 11, and the quenching mold 11 can be replaced.

[0068] After replacing the die quenching die 11, it is only necessary to pull out the positioning sleeve 82 from one end of the second adjustment hole 843 again, and move the lever 81 to the other end in the second adjustment hole 843. During this process, the push ring 2 rotates clockwise or counterclockwise, and the claw accommodating hole 21 pushes the claw 3 to reverse to retract into the claw accommodating hole 21. The claw 3 is released from the bottom end of the first protrusion 731, and the cylinder piston rod arranged in the shell can continue to push the outer die connecting sleeve 73 and the inner die connecting sleeve 74 to move downward, thereby applying downward pressure to the die quenching die 11 to achieve crimping of the replaced die quenching die 11.

[0069] The utility model can meet the needs of fast switching of multiple products and is easy to promote the quenching die quick change device. It is easy to operate and has a short switching time, which greatly improves the press quenching production efficiency of the continuous heat treatment furnace. At the same time, according to the product, the mold change preparation is made in advance. After the assembly is placed on the press, the locking installation and demoulding operation of the die can be completed in an instant of 1-2 seconds.

[0070] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0071] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0072] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0075] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A quenching die quick change device, characterized in that: include: A base (1), a toggle ring (2), a plurality of claws (3), a connecting ring (4), an adjusting ring (5), an oil blocking mechanism (6), a die pressing mechanism (7), a claw adjusting mechanism (8), an adjusting ring positioning mechanism (9) and a housing (10); A plurality of the claws (3) are mounted around and rotatably on the top of the base (1); the toggle ring (2) is mounted on the top of the base (1); the claws (3) are arranged below the toggle ring (2); the connecting ring (4) is sleeved on the outer circumference of the base (1) and the toggle ring (2); the top and bottom ends are connected to the housing (10) and the oil baffle mechanism (6) in a one-to-one correspondence; the adjusting ring (5) is sleeved on the outer circumference of the connecting ring (4) and the oil baffle mechanism (6); and the adjusting ring positioning mechanism (9) is used to adjust the connecting ring (4) and the outer circumference of the oil baffle mechanism (6). The clamping claw (3) is connected to the top of the oil-blocking mechanism (6); the clamping claw adjustment mechanism (8) passes through the connecting ring (4) and is connected to the toggle ring (2); the housing (10) is arranged above the toggle ring (2) and the connecting ring (4); the die pressing mechanism (7) is arranged in a space surrounded by the housing (10), the toggle ring (2), the base (1) and the oil-blocking mechanism (6); the clamping claw (3) is rotatably connected to the die pressing mechanism (7); and the top of the die pressing mechanism (7) is connected to the housing (10).

2. A quenching die quick change device according to claim 1, characterized in that: The base (1) is an annular plate structure, the toggle ring (2) is an annular structure with a plurality of claw receiving holes (21) provided at the bottom end, and the plurality of claws (3) are arranged in one-to-one correspondence and are adapted to be arranged in the plurality of claw receiving holes (21).

3. A quenching die quick change device according to claim 1, characterized in that: The claw adjustment mechanism (8) comprises: a shifting rod (81), a positioning sleeve (82), a compression spring (83) and a first positioning plate (84); the positioning sleeve (82) is an annular structure; the compression spring (83) is arranged inside the positioning sleeve (82); the positioning sleeve (82) and the first positioning plate (84) are detachably connected; the first positioning plate (84) is arranged on the outer peripheral surface of the connecting ring (4); the shifting rod (81) passes through the compression spring (83), the positioning sleeve (82), the first positioning plate (84) and the connecting ring (4), and is connected to the side wall of the shifting ring (2).

4. A quenching die quick change device according to claim 3, characterized in that: The first positioning plate (84) comprises: a positioning plate body (841), a plurality of connecting holes (842) and a second adjustment hole (843); the second adjustment hole (843) and the connecting hole (842) are both through holes arranged on the positioning plate body (841); the second adjustment hole (843) is a horizontally arranged "8"-shaped structure; the plurality of connecting holes (842) are arranged around the second adjustment hole (843); the positioning plate body (841) is a plate-like structure arranged on the outer peripheral surface of the connecting ring (4); the plurality of connecting members pass through the plurality of connecting holes (842) in a one-to-one correspondence and are connected to the side wall of the connecting ring (4); the positioning sleeve (82) is adapted to be clamped with the left end or the right end of the second adjustment hole (843); and the shifting rod (81) passes through the second adjustment hole (843).

5. The quenching die quick change device according to claim 1, characterized in that: The oil shielding mechanism (6) comprises: an oil shielding cover (61), an oil shielding cover door (62) and an adjustment handle (63); the oil shielding cover door (62) is a plate-like structure slidably connected to the inner wall of the oil shielding cover (61); and the adjustment handle (63) passes through the oil shielding cover (61) and is connected to the oil shielding cover door (62).

6. A quenching die quick change device according to claim 5, characterized in that: The oil shield (61) comprises an oil shield body (611) and a first adjustment hole (612); the first adjustment hole (612) is an arc-shaped through hole arranged on the oil shield body (611); the oil shield door (62) is slidably connected to the inner wall of the oil shield body (611); and the adjustment handle (63) passes through the first adjustment hole (612).

7. A quenching die quick change device according to claim 6, characterized in that: The adjusting ring positioning mechanism (9) comprises: a positioning bolt (91), a second positioning plate (92) and a positioning locking plate (93); the positioning locking plate (93) is a plate-like structure with a longitudinal cross section in the shape of a letter "7"; a bottom end of the positioning locking plate (93) is provided with a U-shaped groove opening downward; the second positioning plate (92) is a plate-like structure with a U-shaped groove opening upward at the top end; the positioning locking plate (93) is arranged on the outer peripheral surface of the adjusting ring (5); the second positioning plate (92) is arranged at an end of the vertical section of the positioning locking plate (93) away from the adjusting ring (5); the horizontal section of the positioning locking plate (93) is arranged toward a side away from the adjusting ring (5) and is adapted to be snap-fitted with the U-shaped groove on the second positioning plate (92); the positioning bolt (91) passes through the second positioning plate (92), the U-shaped groove on the positioning locking plate (93) and the adjusting ring (5) in sequence and is connected to the top end of the oil shield body (611).

8. The quenching die quick change device according to claim 1, characterized in that: The die pressing mechanism (7) comprises: an outer spacer ring (71), an inner spacer ring (72), an outer die connecting sleeve (73), an inner die connecting sleeve (74), an outer die (75), an inner die (76) and a plurality of inner and outer spacer ring locking pieces (77); The outer spacer ring (71), the inner spacer ring (72), the outer die connecting sleeve (73), the inner die connecting sleeve (74), the outer die (75) and the inner die (76) are all annular structures. The outer spacer ring (71) is sleeved on the outer circumference of the inner spacer ring (72). The outer wall of the inner die connecting sleeve (74) is clamped with the inner wall of the outer die connecting sleeve (73). The clamping claw (3) is rotatably connected with the outer wall of the outer die connecting sleeve (73). The top end of the outer die connecting sleeve (73) abuts against the outer spacer ring (71), and the bottom end is fixedly connected to the outer die (75); the top end of the inner die connecting sleeve (74) abuts against the inner spacer ring (72), and the bottom end is fixedly connected to the inner die (76); a plurality of inner and outer spacer ring locking plates (77) are wound around the top ends of the outer spacer ring (71) and the inner spacer ring (72); the top ends of the inner and outer spacer ring locking plates (77) are connected to the cylinder piston rod arranged in the housing (10).

9. A quenching die quick change device according to claim 8, characterized in that: A first protrusion (731) and a second protrusion (732) are arranged on the outer wall and the inner wall of the outer die connecting sleeve (73) in a one-to-one correspondence, and a third protrusion (741) is arranged on the outer wall of the inner die connecting sleeve (74). The first protrusion (731), the second protrusion (732) and the third protrusion (741) are all annular structures. The top end of the claw (3) is rotatably engaged with the bottom end of the first protrusion (731), and the top end of the second protrusion (732) is engaged with the bottom end of the third protrusion (741).

10. The quenching die quick change device according to claim 8, characterized in that: It also includes a press-quenching die (11), and the bottom ends of the outer press die (75) and the inner press die (76) are press-connected to the press-quenching die (11).

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