CN112458251A

CN112458251A - Machine parts heat treatment device

Info

Publication number: CN112458251A
Application number: CN202011483976.0A
Authority: CN
Inventors: 不公告发明人
Original assignee: Hangzhou Xinyang Technology Co ltd
Current assignee: Hangzhou Xinyang Technology Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-03-09

Abstract

The invention relates to the field of heat treatment devices, in particular to a heat treatment device for mechanical parts, which comprises a main body, a telescopic mechanism, a material storage mechanism, a turnover mechanism, a discharging mechanism and a cooling mechanism, wherein the main body is provided with a feeding mechanism; the workpiece can be added when the main body is subjected to heat treatment through the storage mechanism, the interruption of work is avoided, the heat treatment efficiency is improved, the workpieces placed by the feeding mechanism can be heated through the arrangement of the telescopic mechanism, the contact of an operator is avoided, the risk that the operator is scalded is avoided, the workpieces are convenient to fall onto the arrangement part of the telescopic mechanism one by one through the arrangement of the feeding mechanism, manual taking operation is replaced, the automatic deflection of the heated workpieces is convenient to cause through the arrangement of the turnover mechanism to enter the inside of the cooling mechanism, the automation degree of the device is improved, the workpieces are discharged to the outside of the main body after being cooled through the arrangement of the cooling mechanism, and space is reserved for subsequent cooling of other workpieces.

Description

Machine parts heat treatment device

Technical Field

The invention relates to the field of heat treatment devices, in particular to a heat treatment device for mechanical parts.

Background

Heat treatment refers to a hot metal working process in which a material is heated, held and cooled in the solid state to achieve a desired texture and properties. In the process of moving from the times of stoneware to the times of cupreous and ironware, the effect of heat treatment is gradually recognized. The final heat treatment of the mechanical part processing is to improve the mechanical properties of the parts, such as hardness, wear resistance, strength and the like, so as to better realize the use value of the parts; the heat treatment of the existing parts is performed by quenching, which aims to transform the super-cooled austenite into martensite or bainite to obtain martensite or bainite structure, and then the rigidity, hardness, wear resistance, fatigue strength, toughness and the like of the steel are greatly improved by tempering at different temperatures.

The existing parts only need to be locally quenched, so that large-scale uniform heat treatment cannot be carried out, most of the parts needing quenching are manually operated one by one, the quenching efficiency of the parts is not high, and operators are not operated properly and easily scalded due to high surface temperature of the parts after quenching.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a heat treatment device for mechanical parts.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a machine parts heat treatment device, includes main part, telescopic machanism, storage mechanism, tilting mechanism, drop feed mechanism and cooling mechanism for place the work piece in advance storage mechanism locates the top of main part is used for operating the work piece and heating telescopic machanism locates storage mechanism with between the main part, the work piece that is used for operating the heating drops inside the cooling mechanism tilting mechanism locates one side of telescopic machanism is used for with the inside work piece of storage mechanism is placed settle in the telescopic machanism on the part drop feed mechanism locates storage mechanism's inside is used for with the work piece after the heating is rapidly refrigerated cooling mechanism locates the inside of main part.

Specifically, the storage mechanism comprises a filling cylinder, a fixing column and a discharging cavity, the fixing column is fixed to the top end of the main body, the filling cylinder is cylindrical and fixed to one side of the top end of the fixing column, and the discharging cavity is arranged inside the filling cylinder.

Specifically, telescopic machanism includes mount, heating ring, hydro-cylinder, arrangement frame, telescopic link and arrangement piece, the top of main part is fixed with and is the L form the mount, the internally mounted of mount has the heating ring, the top of main part is equipped with the hydro-cylinder, be fixed with two on the lateral wall of hydro-cylinder the arrangement frame, the bottom mounting of arrangement frame is in the top of main part, the inside of hydro-cylinder is equipped with the telescopic link, the telescopic link slide in the inside and the one end of hydro-cylinder extend to the outside of hydro-cylinder, the telescopic link deviates from the one end of hydro-cylinder is fixed with the arrangement piece.

Specifically, the discharging mechanism comprises a servo motor, a first rotating shaft, fourth gears, a second chain, a second rotating shaft, universal balls, universal frames and a discharging frame, the servo motor is installed on one side of the fixed column, the second rotating shaft is rotated inside the packing cylinder, the discharging frame is fixed in the middle of the second rotating shaft in a cross shape, the universal balls are respectively rotated at two ends of the second rotating shaft, the universal frames are respectively rotated between two adjacent universal balls, the fourth gears are respectively fixed in the middle of the first rotating shaft and one of the second rotating shafts, the second chains are meshed between the two fourth gears, one end of the discharging frame extends into the discharging cavity, and one end of the servo motor is fixed at one end of the first rotating shaft.

Specifically, tilting mechanism includes installation piece, steering wheel, first gear, second gear, third gear and first chain, the one end of hydro-cylinder is fixed with the installation piece, the telescopic link runs through the installation piece and rotate connect in the installation piece, the inside of installation piece is rotated and is had first gear second gear and two the third gear, the second gear slide in on the lateral wall of telescopic link, first gear second gear with mesh jointly between the third gear has first chain, install one side of installation piece the steering wheel, the one end of steering wheel is fixed in first gear.

Specifically, cooling mechanism includes aqua storage tank, mounting bracket, driving motor, discharge gate, fifth gear, third chain, fourth chain and salvage board, the inside of main part is equipped with the aqua storage tank, the top of aqua storage tank communicate in the top of main part and one side communicate in the discharge gate, the discharge gate is located one side of main part, the inside of aqua storage tank is equipped with the mounting bracket, the inside both ends of mounting bracket rotate respectively one the fifth gear, two the meshing has between the fifth gear the third chain, the outside of third chain is equipped with the fourth chain, the third chain with it has a plurality ofly to rotate between the fourth chain salvage the board, install one side of mounting bracket driving motor, driving motor one end is fixed in one of them fifth gear.

The invention has the beneficial effects that:

(1) the invention relates to a mechanical part heat treatment device, a storage mechanism is arranged at the top end of a main body, workpieces can be added while the main body is subjected to heat treatment through the arrangement of the storage mechanism, the interruption of work is avoided, and the heat treatment efficiency is improved, a telescopic mechanism is arranged between the storage mechanism and the main body, the workpieces placed by a feeding mechanism can be subjected to heating operation through the arrangement of the telescopic mechanism, the contact of an operator is avoided, and the risk of scalding of the operator is avoided, namely, a filling cylinder is arranged at the top end of the main body and is connected with the main body through a fixed column, the arrangement of the fixed column can provide an arrangement space for the feeding mechanism while the filling cylinder is fixedly arranged, the utilization rate of the fixed column is improved, when the workpieces need to be heated, the workpieces in a disc shape are firstly stacked inside a feeding cavity inside the filling cylinder, and then can add the work piece when the main part carries out thermal treatment, the interruption of work has been avoided, and heat treatment efficiency has been improved, because after adding the work piece, at first the power of switch-on heating ring, make it be in operating condition, start the hydro-cylinder after that, drop to the top of placing the piece with the work piece that is located the blowing chamber bottom by drop mechanism, the inside of heating ring is placed to the work piece that the hydro-cylinder promoted the telescopic link will settle on the piece after that, return to the initial position again after the heating is accomplished, start tilting mechanism this moment, make the telescopic link rotate to vertical angle, then the work piece after the heating drops the inside of cooling mechanism, and then can be heated the work piece of putting down by drop mechanism and carry out heating operation, operator's contact has been avoided, the risk of operator scalded has been avoided.

(2) The invention relates to a mechanical part heat treatment device, wherein a discharging mechanism is arranged in a material storage mechanism, workpieces are convenient to fall onto mounting parts of a telescopic mechanism one by one through the arrangement of the discharging mechanism, the manual taking operation is replaced, a turnover mechanism is arranged at one side of the telescopic mechanism, the heated workpieces are convenient to automatically deflect and enter the interior of a cooling mechanism through the arrangement of the turnover mechanism, the automation degree of the device is improved, namely, when the workpieces positioned at the bottom end of a discharging cavity are required to fall to the top end of a mounting block, a servo motor is firstly started, a fourth gear at one end is driven by the servo motor through a first rotating shaft, the fourth gear drives one of second rotating shafts to rotate through a second chain, the second rotating shafts synchronously rotate a plurality of other second rotating shafts through universal balls at two ends and a universal frame, and a discharging frame in a filling cylinder synchronously deflects, thereby realize the effect of blowing one by one, and then be convenient for drop the work piece one by one on telescopic machanism's the arrangement part, artificial operation of taking has been replaced, because when needs rotate the telescopic link, at first start the steering wheel, then the steering wheel passes through first gear engagement first chain, first chain twines meshing second gear again and rotates, because second gear sliding connection is in the telescopic link, then drive the telescopic link and deflect together, accomplish promptly and cause the work piece to enter into the inside effect of cooling mechanism, and then be convenient for cause the work piece automatic deflection after heating to enter into the inside of cooling mechanism, the degree of automation of device has been improved.

(3) According to the mechanical part heat treatment device, the cooling mechanism is arranged in the main body, and the workpieces are discharged to the outer side of the main body after being cooled through the cooling mechanism, so that a space is reserved for cooling other subsequent workpieces, namely, as water special for cooling is stored in the water storage tank, the driving motor is synchronously started during a heat treatment task, the driving motor drives one of the fifth gears to slowly rotate at a constant speed, the fishing plates transport the workpieces in the water storage tank to the inner part of the discharge port through the rotation of the third chain and the fourth chain, and then the workpieces are discharged to the outer side of the main body after being cooled, so that a space is reserved for cooling other subsequent workpieces, and the work is convenient to continuously carry out.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a structural diagram illustrating an overall structure of a preferred embodiment of a thermal processing apparatus for mechanical parts according to the present invention;

FIG. 2 is a schematic view of a connecting structure of the material storing mechanism and the material discharging mechanism shown in FIG. 1;

FIG. 3 is a schematic structural view of the telescoping mechanism and the turnover mechanism shown in FIG. 1;

FIG. 4 is a schematic structural diagram of the cooling mechanism shown in FIG. 1;

FIG. 5 is a schematic view of the tap frame shown in FIG. 2;

FIG. 6 is an enlarged view of portion A of FIG. 1;

FIG. 7 is an enlarged view of the portion B shown in FIG. 2;

fig. 8 is an enlarged schematic view of the portion C shown in fig. 4.

In the figure: 1. the automatic feeding device comprises a main body, 2, a telescopic mechanism, 21, a fixing frame, 22, a heating ring, 23, an oil cylinder, 24, a placing frame, 25, a telescopic rod, 26, a placing block, 3, a storing mechanism, 31, a filling cylinder, 32, a fixing column, 33, a discharging cavity, 4, a turnover mechanism, 41, an installing block, 42, a steering engine, 43, a first gear, 44, a second gear, 45, a third gear, 46, a first chain, 5, a discharging mechanism, 51, a servo motor, 52, a first rotating shaft, 53, a fourth gear, 54, a second chain, 55, a second rotating shaft, 56, a universal ball, 57, a universal frame, 58, a discharging frame, 6, a cooling effect, 61, a water storage tank, 62, an installing frame, 63, a driving motor, 64, a discharging port, 65, a fifth gear, 66, a third chain, 67, a fourth chain, 68 and a fishing plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-8, the heat treatment device for mechanical parts of the present invention comprises a main body 1, a telescopic mechanism 2, a material storage mechanism 3, a turnover mechanism 4, a material discharge mechanism 5 and a temperature reduction mechanism 6, the storing mechanism 3 for placing the workpieces in advance is arranged at the top end of the main body 1, the telescopic mechanism 2 for operating the workpieces to heat is arranged between the storing mechanism 3 and the main body 1, the turnover mechanism 4 for operating the heated workpiece to fall into the cooling mechanism 6 is arranged at one side of the telescopic mechanism 2, the discharging mechanism 5 used for placing the workpieces in the storing mechanism 3 on the placing components in the telescopic mechanism 2 is arranged in the storing mechanism 3, the cooling mechanism 6 for rapidly cooling the heated workpiece is provided inside the main body 1.

Specifically, the storing mechanism 3 comprises a filling cylinder 31, a fixing column 32 and a discharging cavity 33, the fixing column 32 is fixed at the top end of the main body 1, the cylindrical filling cylinder 31 is fixed at one side of the top end of the fixing column 32, the discharging cavity 33 is arranged inside the filling cylinder 31, the filling cylinder 31 is located at the top end of the main body 1, the filling cylinder 31 is connected with the main body 1 through the fixing column 32, the filling cylinder 31 can be fixedly arranged and a placing space can be provided for the discharging mechanism 5 through the fixing column 32, the utilization rate of the fixing column 32 is improved, when a workpiece needs to be heated, firstly, a wafer-shaped workpiece is stacked inside the discharging cavity 33 inside the filling cylinder 31, and then the workpiece can be added while the main body 1 is subjected to heat treatment, the interruption of the work is avoided and the heat treatment efficiency is improved.

Specifically, telescopic machanism 2 includes mount 21, heating ring 22, hydro-cylinder 23, arrangement frame 24, telescopic link 25 and arrangement piece 26, the top of main part 1 is fixed with the L form mount 21, the internally mounted of mount 21 has heating ring 22, the top of main part 1 is equipped with hydro-cylinder 23, be fixed with two on the lateral wall of hydro-cylinder 23 arrangement frame 24, the bottom mounting of arrangement frame 24 is in the top of main part 1, the inside of hydro-cylinder 23 is equipped with telescopic link 25, telescopic link 25 slide in the inside of hydro-cylinder 23 and one end extend to the outside of hydro-cylinder 23, telescopic link 25 deviates from the one end of hydro-cylinder 23 is fixed with arrangement piece 26, because after adding the work piece, at first put through the power of heating ring 22, make it be in operating condition, start after that hydro-cylinder 23, drop in the work piece of drop feed chamber 33 bottom drop place the top of piece 26, then hydro-cylinder 23 promotes telescopic link 25 will the work piece of settling on the piece 26 is placed heating ring 22's inside, contracts to initial position again after the heating is accomplished, starts this moment tilting mechanism 4 makes telescopic link 25 rotates vertical angle, and then the work piece after being heated drops cooling mechanism 6's inside, and then can by the work piece that drop feed mechanism 5 put down carries out heating operation, has avoided operator's contact, has avoided the risk that the operator was scalded.

Specifically, the discharging mechanism 5 includes a servo motor 51, a first rotating shaft 52, a fourth gear 53, a second chain 54, a second rotating shaft 55, a universal ball 56, a universal frame 57 and a discharging frame 58, the servo motor 51 is installed on one side of the fixed column 32, the second rotating shaft 55 is rotated inside the packing cylinder 31, the discharging frame 58 in a cross shape is fixed in the middle of the second rotating shaft 55, one universal ball 56 is respectively rotated at two ends of the second rotating shaft 55, one universal frame 57 is rotated between two adjacent universal balls 56, one fourth gear 53 is respectively fixed in the middle of the first rotating shaft 52 and one of the second rotating shafts 55, the second chain 54 is engaged between two fourth gears 53, one end of the discharging frame 58 extends into the discharging cavity 33, one end of the servo motor 51 is fixed at one end of the first rotating shaft 52, when a workpiece at the bottom end of the feeding cavity 33 needs to fall to the top end of the mounting block 26, the servo motor 51 is firstly started, the servo motor 51 is utilized to drive the fourth gear 53 at one end through the first rotating shaft 52, the fourth gear 53 drives one of the second rotating shafts 55 to rotate through the second chain 54, the second rotating shaft 55 causes a plurality of other second rotating shafts 55 to synchronously rotate through the universal balls 56 at the two ends and the universal frame 57, and the discharging frame 58 inside the filling cylinder 31 synchronously deflects, so that the effect of feeding one by one is realized, the workpiece can be conveniently dropped onto the mounting part of the telescopic mechanism 2 one by one, and the manual taking operation is replaced.

Specifically, the turnover mechanism 4 includes an installation block 41, a steering gear 42, a first gear 43, a second gear 44, a third gear 45 and a first chain 46, the installation block 41 is fixed at one end of the oil cylinder 23, the telescopic rod 25 penetrates through the installation block 41 and is rotatably connected to the installation block 41, the first gear 43, the second gear 44 and two third gears 45 rotate inside the installation block 41, the second gear 44 slides on the side wall of the telescopic rod 25, the first chain 46 is engaged between the first gear 43, the second gear 44 and the third gear 45, the steering gear 42 is installed at one side of the installation block 41, one end of the steering gear 42 is fixed to the first gear 43, because the steering gear 42 is first started when the telescopic rod 25 needs to be rotated, the steering gear 42 is engaged with the first chain 46 through the first gear 43, the first chain 46 is wound and meshed with the second gear 44 to rotate, and the second gear 44 is connected to the telescopic rod 25 in a sliding mode, so that the telescopic rod 25 is driven to deflect together, the effect that the workpiece enters the interior of the cooling mechanism 6 is achieved, the heated workpiece is enabled to automatically deflect and enter the interior of the cooling mechanism 6, and the automation degree of the device is improved.

Specifically, the cooling mechanism 6 includes a water storage tank 61, an installation frame 62, a driving motor 63, a discharge port 64, a fifth gear 65, a third chain 66, a fourth chain 67 and fishing plates 68, the water storage tank 61 is disposed inside the main body 1, the top end of the water storage tank 61 is communicated with the top end of the main body 1, one side of the water storage tank 61 is communicated with the discharge port 64, the discharge port 64 is disposed at one side of the main body 1, the installation frame 62 is disposed inside the water storage tank 61, one fifth gear 65 is respectively rotated at two ends of the inside of the installation frame 62, the third chain 66 is engaged between the two fifth gears 65, the fourth chain 67 is disposed outside the third chain 66, a plurality of fishing plates 68 are rotated between the third chain 66 and the fourth chain 67, the driving motor 63 is installed at one side of the installation frame 62, one end of the driving motor 63 is fixed to one of the fifth gears 65, because the water dedicated for cooling is stored in the water storage tank 61, the driving motor 63 is synchronously started during a heat treatment task, the driving motor 63 drives one of the fifth gears 65 to slowly rotate at a uniform speed, and the fishing plates 68 transport the workpieces in the water storage tank 61 to the inside of the discharge port 64 through the rotation of the third chain 66 and the fourth chain 67, so that the workpieces are discharged to the outside of the main body 1 after the workpieces are cooled, thereby freeing up space for subsequent cooling of other workpieces and facilitating continuous work.

When the feeding device is used, the filling cylinder 31 is positioned at the top end of the main body 1, the filling cylinder 31 is connected with the main body 1 through the fixing column 32, the filling cylinder 31 can be fixedly arranged while an arrangement space can be provided for the discharging mechanism 5 through the arrangement of the fixing column 32, the utilization rate of the fixing column 32 is improved, when a workpiece needs to be heated, the workpiece in a wafer shape is firstly stacked in the discharging cavity 33 in the filling cylinder 31, and then the workpiece can be added while the main body 1 is subjected to heat treatment, so that the interruption of the work is avoided, and the heat treatment efficiency is improved; after the workpieces are added, firstly, the power supply of the heating ring 22 is connected to enable the heating ring 22 to be in a working state, then the oil cylinder 23 is started, the discharging mechanism 5 drops the workpieces located at the bottom end of the discharging cavity 33 to the top end of the placing block 26, then the oil cylinder 23 pushes the telescopic rod 25 to place the workpieces on the placing block 26 into the heating ring 22, the workpieces retract to an initial position after heating is completed, at the moment, the turnover mechanism 4 is started to enable the telescopic rod 25 to rotate to a vertical angle, the heated workpieces drop into the cooling mechanism 6, and then the workpieces placed by the discharging mechanism 5 can be heated, so that the contact of an operator is avoided, and the wind for scalding the operator is avoided; when the workpiece at the bottom end of the material placing cavity 33 needs to fall to the top end of the placing block 26, the servo motor 51 is started firstly, the servo motor 51 is utilized to drive the fourth gear 53 at one end through the first rotating shaft 52, the fourth gear 53 drives one of the second rotating shafts 55 to rotate through the second chain 54, the second rotating shaft 55 causes a plurality of other second rotating shafts 55 to synchronously rotate through the universal balls 56 and the universal frames 57 at the two ends, and the material discharging frame 58 inside the filling cylinder 31 synchronously deflects, so that the effect of placing materials one by one is realized, the workpiece is convenient to fall onto the placing part of the telescopic mechanism 2 one by one, and the manual taking operation is replaced; when the telescopic rod 25 needs to be rotated, the steering engine 42 is started firstly, the steering engine 42 is meshed with the first chain 46 through the first gear 43, the first chain 46 is wound and meshed with the second gear 44 to rotate, and the second gear 44 is connected to the telescopic rod 25 in a sliding manner, so that the telescopic rod 25 is driven to deflect together, that is, the workpiece enters the cooling mechanism 6, the heated workpiece is conveniently deflected automatically to enter the cooling mechanism 6, and the automation degree of the device is improved; because the inside storage of aqua storage tank 61 has the water liquid of being exclusively used in the cooling, synchronous start driving motor 63 when the task of carrying out thermal treatment, then driving motor 63 drives one of them fifth gear 65 and slowly rotates at the uniform velocity, rotation through third chain 66 and fourth chain 67, then the inside of discharge gate 64 is transported out with the inside work piece of aqua storage tank 61 to a plurality of salvage boards 68, and then accomplish the outside of discharging the work piece to main part 1 after the cooling at the work piece, thereby vacate the space for subsequent other work piece cooling, convenient work is continuously gone on.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A machine parts heat treatment device, characterized by: comprises a main body (1), a telescopic mechanism (2), a material storage mechanism (3), a turnover mechanism (4), a material discharging mechanism (5) and a cooling mechanism (6), the storing mechanism (3) used for placing workpieces in advance is arranged at the top end of the main body (1), the telescopic mechanism (2) for operating the workpiece to heat is arranged between the material storage mechanism (3) and the main body (1), the turnover mechanism (4) used for operating the heated workpiece to fall into the cooling mechanism (6) is arranged at one side of the telescopic mechanism (2), the discharging mechanism (5) used for placing the workpiece in the storing mechanism (3) on the placing component in the telescopic mechanism (2) is arranged in the storing mechanism (3), the cooling mechanism (6) for rapidly cooling the heated workpiece is arranged in the main body (1).

2. The apparatus for heat-treating mechanical parts according to claim 1, wherein: the material storage mechanism (3) comprises a filling cylinder (31), a fixing column (32) and a discharging cavity (33), the fixing column (32) is fixed to the top end of the main body (1), the filling cylinder (31) which is cylindrical is fixed to one side of the top end of the fixing column (32), and the discharging cavity (33) is arranged inside the filling cylinder (31).

3. The apparatus for heat-treating mechanical parts according to claim 1, wherein: the telescopic mechanism (2) comprises a fixed frame (21), a heating ring (22), an oil cylinder (23), a placing frame (24), a telescopic rod (25) and a placing block (26), the top end of the main body (1) is fixed with the L-shaped fixing frame (21), the heating ring (22) is arranged in the fixing frame (21), the top end of the main body (1) is provided with the oil cylinder (23), the side wall of the oil cylinder (23) is fixed with two placing frames (24), the bottom end of the placing frame (24) is fixed at the top end of the main body (1), the telescopic rod (25) is arranged in the oil cylinder (23), the telescopic rod (25) slides in the oil cylinder (23) and one end of the telescopic rod extends to the outside of the oil cylinder (23), one end of the telescopic rod (25) departing from the oil cylinder (23) is fixed with the mounting block (26).

4. The apparatus for heat-treating mechanical parts according to claim 2, wherein: the discharging mechanism (5) comprises a servo motor (51), a first rotating shaft (52), a fourth gear (53), a second chain (54), a second rotating shaft (55), universal balls (56), universal frames (57) and a discharging frame (58), the servo motor (51) is installed on one side of the fixed column (32), the second rotating shaft (55) rotates inside the packing cylinder (31), the discharging frame (58) in a cross shape is fixed in the middle of the second rotating shaft (55), one universal ball (56) rotates at each of two ends of the second rotating shaft (55), one universal frame (57) rotates between two adjacent universal balls (56), one fourth gear (53) is fixed in each of the middle of the first rotating shaft (52) and one of the second rotating shafts (55), and the second chain (54) is meshed between the two fourth gears (53), one end of the discharging frame (58) extends to the inside of the discharging cavity (33), and one end of the servo motor (51) is fixed at one end of the first rotating shaft (52).

5. The apparatus for heat-treating mechanical parts according to claim 3, wherein: the turnover mechanism (4) comprises a mounting block (41), a steering engine (42), a first gear (43), a second gear (44), a third gear (45) and a first chain (46), the mounting block (41) is fixed at one end of the oil cylinder (23), the telescopic rod (25) penetrates through the mounting block (41) and is rotatably connected to the mounting block (41), the first gear (43), the second gear (44) and two third gears (45) rotate in the mounting block (41), the second gear (44) slides on the side wall of the telescopic rod (25), the first gear (43), the second gear (44) and the third gear (45) are mutually meshed with the first chain (46), the steering gear (42) is installed to one side of installation piece (41), the one end of steering gear (42) is fixed in first gear (43).

6. The apparatus for heat-treating mechanical parts according to claim 1, wherein: the cooling mechanism (6) comprises a water storage tank (61), an installation frame (62), a driving motor (63), a discharge port (64), a fifth gear (65), a third chain (66), a fourth chain (67) and fishing plates (68), the water storage tank (61) is arranged in the main body (1), the top end of the water storage tank (61) is communicated with the top end of the main body (1) and one side of the water storage tank is communicated with the discharge port (64), the discharge port (64) is arranged on one side of the main body (1), the installation frame (62) is arranged in the water storage tank (61), one fifth gear (65) is respectively rotated at two ends in the installation frame (62), the third chain (66) is meshed between the two fifth gears (65), the fourth chain (67) is arranged on the outer side of the third chain (66), and the fishing plates (68) are rotated between the third chain (66) and the fourth chain (67), the driving motor (63) is installed on one side of the mounting frame (62), and one end of the driving motor (63) is fixed to one of the fifth gears (65).