An automatic quenching production system for constant velocity universal joints

Abstract

The present invention relates to the technical field of universal joint quenching, and in particular to a constant velocity universal joint automatic quenching production system. It comprises: a machine tool, a workbench arranged on one side of the machine tool, a discharging table arranged on the other side of the machine tool, a rod quenching grabbing manipulator arranged near the machine tool, an inner cavity quenching grabbing manipulator arranged adjacent to the rod quenching grabbing mechanism, a rod quenching mechanism arranged inside the machine tool, an inner cavity quenching mechanism arranged adjacent to the rod quenching mechanism, and a transition grabbing manipulator for transferring the universal joint after rod quenching to the inner cavity quenching mechanism, and a fume recovery mechanism arranged above the rod quenching mechanism for collecting fume generated during quenching. The present invention provides a constant velocity universal joint automatic quenching production system with the advantages of high degree of automation, improved quenching accuracy, high work efficiency, good quenching effect, no environmental pollution, simple structure and easy use.

Description

Technical Field

[0001] The invention relates to the technical field of universal joint quenching, and in particular to an automatic quenching production system for constant velocity universal joints. Background Art

[0002] Universal joints are often used to connect shafts and drive components, such as transmission systems between engines and gearboxes. They can withstand high-intensity torque and ensure smooth and efficient power transmission. Through the use of universal joints, the transmission system can work in different directions and angles, allowing mechanical equipment to operate more flexibly.

[0003] Chinese patent CN207452186U discloses a device for quenching ball cage constant velocity universal joint shells, wherein the machine tool base is welded from steel, the loading and storage mechanism is placed on the left side of the machine tool base, the loading conveyor chain is fixed on the machine tool base and connected to the loading and storage mechanism, the left column, truss, right column, inner cavity quenching load, outer spline quenching load, and unloading conveyor chain are fixed on the machine tool base, the operation box and the inner cavity quenching positioning mechanism are fixed on the left column, the upper center is installed on the outer spline quenching positioning mechanism, the outer spline quenching positioning mechanism and the outer spline quenching sprinkler are installed on the right column, and the manipulator is installed on the truss; the advantages of the present invention are that the inner cavity quenching and the outer spline quenching are carried out at the same time in two stations, with high work efficiency; the workpiece is clamped and positioned accurately, rotary quenching is adopted, the quenching depth and hardness are uniform, and the quenching quality is stable.

[0004] However, this technical solution does not have a flue gas treatment device, and the flue gas directly floats in the atmosphere, polluting the environment. In addition, the universal joint of this solution does not move during the quenching process, which can easily lead to uneven quenching heat. In severe cases, quenching stress may cause cracks in the ball cage, affecting product quality. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and provide a constant velocity universal joint automatic quenching production system, which drives the rotating part to rotate through a driving part, and synchronously drives the universal joint ball cage to rotate, so as to achieve uniform heating of the inner wall of the ball cage during the induction quenching process, improve the accuracy of induction quenching, avoid local uneven force causing quenching stress and affecting the quenching quality.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A constant velocity universal joint automatic quenching production system, comprising: a machine tool, a workbench arranged on one side of the machine tool, a discharging table arranged on the other side of the machine tool, a rod quenching grabbing manipulator arranged near the machine tool, an inner cavity quenching grabbing manipulator arranged adjacent to the rod quenching grabbing manipulator, a rod quenching mechanism arranged inside the machine tool, an inner cavity quenching mechanism arranged adjacent to the rod quenching mechanism, and a transition grabbing manipulator for transferring the universal joint after rod quenching to the inner cavity quenching mechanism;

[0008] The rod quenching mechanism comprises: a clamping assembly for clamping the universal joint, a first heater arranged on one side of the clamping assembly, and a first cooler arranged on one side of the first heater;

[0009] The inner cavity quenching mechanism comprises: a receiving assembly for mounting the universal joint after the rod portion is quenched, a second heater arranged directly above the receiving assembly, and a second cooler arranged at one side of the second heater.

[0010] Preferably, the clamping assembly includes: a vertically arranged moving seat, a base plate arranged on one side of the moving seat, a connecting seat fixedly connected to the moving seat, a limit block arranged on the connecting seat, a limit rod arranged at the bottom end of the limit block, and a handle obliquely arranged on one side of the limit block, and the limit rod is arranged opposite to the end of the universal joint rod.

[0011] Preferably, the receiving assembly includes: a sliding seat vertically arranged on the machine tool, a supporting seat horizontally arranged on the sliding seat, a rotating member arranged on the supporting seat for driving the universal joint to rotate, and a driving member driving the rotating member to rotate.

[0012] Preferably, the rotating part includes: a base for supporting the outer wall of the universal joint ball cage, a rotating shaft rotatably arranged at one end of the support seat, and a central axis arranged on the inner side of the bottom of the rotating shaft for supporting the bottom end of the universal joint ball cage rod; the base is engaged with the top end of the support seat; and a fastener for adjusting the position of the central axis is arranged on the outer side of the bottom of the rotating shaft.

[0013] Preferably, the rotating shaft is symmetrically divided into two parts, which are connected as a whole by a clamp arranged on the outer periphery of the rotating shaft; an arc groove is provided on one petal of the rotating shaft, and the rotating shaft with the arc groove is adjustably connected to the clamp through a locking piece passing through the arc groove.

[0014] Preferably, two groups of positioning components for connecting the universal joint to rotate synchronously with the rotating shaft are provided on the side wall of the rotating shaft.

[0015] Preferably, the positioning component comprises:

[0016] A fixing plate is arranged outside the rotating shaft, and the fixing plate is adjustably connected to the rotating shaft via a screw;

[0017] A clamping block is matched with the tooth groove on the rod part of the universal joint ball cage, one end of which is slidably arranged on the fixed plate through a guide rod, a positioning block is arranged at the end of the guide rod, and a reset spring is sleeved on the guide rod.

[0018] Preferably, it also includes an adaptive adjustment component that adapts the relative position of the clamping block and the teeth of the ball cage rod; the adaptive adjustment component includes:

[0019] A ball disposed at the top of one side of the block close to the universal joint ball cage;

[0020] An adaptive swinging member, wherein the adaptive swinging member is mounted on the fixing plate, and the guide rod passes through the adaptive swinging member;

[0021] After the clamping block is squeezed by the teeth of the universal joint ball cage rod, the clamping block is deflected by a certain angle due to the guiding effect of the ball and the deflection of the adaptive swinging member, and then the clamping block is inserted into the tooth groove of the universal joint ball cage rod under the thrust of the return spring.

[0022] Preferably, the driving member includes: a motor arranged above the support seat, a first bevel gear set arranged at the output end of the motor, a second bevel gear set arranged on the clamp, and a connecting shaft arranged between the first bevel gear set and the second bevel gear set.

[0023] Preferably, it also includes a fume recovery mechanism arranged above the rod quenching mechanism for collecting fume generated during quenching, and the fume recovery mechanism includes: a recovery tank arranged above the universal joint to be quenched and a fan arranged above the recovery tank.

[0024] The beneficial effects of the present invention are:

[0025] (1) The present invention realizes the automatic loading and unloading of the universal joint ball cage and the transfer between the processing processes through the cooperation of three manipulators, realizes automated production, reduces the labor intensity of the operator, and improves the quenching accuracy. (2) The present invention uses the driving member to drive the rotating member to rotate during the quenching process of the universal joint ball cage, and synchronously drives the ball cage to rotate, so as to improve the uniformity of the heating of the inner cavity of the ball cage during the quenching process, improve the uniformity of the quenching depth, and avoid the generation of internal stress of the ball cage caused by uneven heating. (3) The present invention uses the positioning component to connect the ball cage and the rotating member as a whole by using the clamping block to rotate synchronously, thereby improving the stability of the ball cage rotation process, thereby improving the uniformity of the heating during the quenching process of the ball cage, ensuring the quenching accuracy of the ball cage, and avoiding the phenomenon of uneven heating caused by the unstable rotation of the ball cage. (4) The present invention sets the rotating shaft as a two-petal structure to achieve adjustable position of the positioning component, so as to adapt to ball cages with different numbers of teeth, improve the versatility of the positioning component, reduce mold changes, and improve production efficiency. (5) The present invention uses the setting of an adaptive adjustment component, the guiding effect of the ball and the deflection of the adaptive swinging member to realize that when the universal joint ball cage is installed into the rotating shaft, the tooth shape of the ball cage rod and the clamping block automatically adapt to the adjustment and insert into the tooth groove, thereby avoiding the problem that when the rod of the ball cage is inserted into the rotating shaft, the contour of the tooth groove and the clamping block interfere with each other, causing the rod to be unable to be installed normally. (6) The present invention uses the force of the reset spring to make the clamping block always abut against the inside, and at the same time uses the adjustable position of the fixed plate to adjust the distance between the clamping block and the universal joint ball cage rod to adapt to different rod diameters. By adjusting the appropriate distance, the compression amount of the reset spring is equal after the ball cages of different rod sizes are installed, ensuring that the clamping block is smoothly inserted into the tooth groove. (7) The present invention sets a fume recovery mechanism to reduce the emission of exhaust gas during quenching, which affects the health of the operator and improves the working environment.

[0026] In summary, the present invention has the advantages of high degree of automation, reduced labor intensity of operators, improved quenching accuracy, wide application range, high work efficiency, good quenching effect, no environmental pollution, simple structure and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0028] Figure 2 for Figure 1 A magnified image of point A;

[0029] Figure 3 for Figure 1 The enlarged view of point B;

[0030] Figure 4 This is a structural schematic diagram of a universal joint installed on a receiving assembly after the rod portion is quenched in an embodiment of the present invention;

[0031] Figure 5for Figure 4 Enlarged view of point C;

[0032] Figure 6 This is a cross-sectional view of the installation of the universal joint after the rod portion is quenched in the second embodiment of the present invention;

[0033] Figure 7 for Figure 6 The enlarged view of point D;

[0034] Figure 8 It is a cross-sectional view of the state where the positioning assembly of the third embodiment of the present invention is facing the tooth groove of the universal joint rod;

[0035] Fig. 9 This is a cross-sectional view of the positioning assembly of the third embodiment of the present invention in a state where it is not directly facing the tooth groove of the universal joint rod.

[0036] Figure numerals: 1-machine tool; 2-workbench; 3-discharging table; 4-rod quenching grabbing manipulator; 5-inner cavity quenching grabbing manipulator; 6-stem quenching mechanism; 61-clamping assembly; 611-moving seat; 612-bottom plate; 613-connecting seat; 614-limiting block; 615-limiting rod; 616-handle; 62-first heater; 63-first cooler; 7-inner cavity quenching mechanism; 71-receiving assembly; 711-sliding seat; 712-supporting seat; 713-rotating member; 7131-base; 7132-rotating shaft; 7133-central shaft; 7134-hoop; 7135-locking member; 713 6-arc groove; 714-driving member; 7141-motor; 7142-first bevel gear set; 7143-second bevel gear set; 7144-connecting shaft; 715-positioning assembly; 7151-block; 7152-fixing plate; 7153-reset spring; 7154-screw; 7155-nut; 7156-guide rod; 7157-positioning block; 716-fastener; 717-adaptive adjustment assembly; 7171-ball; 7172-adaptive swing member; 72-second heater; 73-second cooler; 8-transition grabbing manipulator; 9-smoke recovery mechanism; 91-recovery trough; 92-fan. DETAILED DESCRIPTION

[0037] 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.

[0038] 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" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0039] Embodiment 1

[0040] like Figure 1-5 As shown, this embodiment provides a constant velocity universal joint automatic quenching production system, including: a machine tool 1, a workbench 2 arranged on one side of the machine tool 1, a discharge table 3 arranged on the other side of the machine tool 1, a rod quenching grabbing manipulator 4 arranged close to the machine tool 1, an inner cavity quenching grabbing manipulator 5 arranged adjacent to the rod quenching grabbing mechanism, a rod quenching mechanism 6 arranged inside the machine tool 1, an inner cavity quenching mechanism 7 arranged adjacent to the rod quenching mechanism 6, and a transition grabbing manipulator 8 for transferring the universal joint after rod quenching to the inner cavity quenching mechanism 7, and a fume recovery mechanism 9 arranged above the rod quenching mechanism 6 for collecting fume generated during quenching. Two-step quenching operations are performed on the same machine, which is easy to use and improves work efficiency. In addition, the fume recovery mechanism 9 can prevent fume from diffusing and avoid polluting the environment.

[0041] Among them, the rod quenching mechanism 6 includes: a clamping assembly 61 for clamping the universal joint, a first heater 72 arranged on one side of the clamping assembly 61, and a first cooler 63 arranged on one side of the first heater 72. The universal joint is clamped by the clamping assembly 61, and the rod of the universal joint is quenched in cooperation with the first heater 72 and the first cooler 63. It is simple to operate, easy to use and has high work efficiency.

[0042] At the same time, the inner cavity quenching mechanism 7 includes: a receiving assembly 71 for installing the universal joint after the rod is quenched, a second heater 72 arranged directly above the receiving assembly 71, and a second cooler 73 arranged on one side of the second heater 72. The first heater 72 and the second heater 72 are preferably induction heating coils because they have the advantages of high heating efficiency, precise temperature control, low energy consumption and pollution-free heating, and can quickly heat and cool without damaging the universal joint, thereby ensuring the quenching efficiency.

[0043] In this embodiment, the clamping assembly 61 includes: a vertically arranged moving seat 611, a base plate 612 arranged on one side of the moving seat 611, a connecting seat 613 fixedly connected to the moving seat 611, a limit block 614 arranged on the connecting seat 613, a limit rod 615 arranged at the bottom end of the limit block 614, and a handle 616 obliquely arranged on one side of the limit block 614, the limit rod 615 is arranged opposite to the end of the universal joint rod, the moving seat 611 makes an up and down reciprocating motion, driving the limit rod 615 to make an up and down reciprocating motion together, and the limit rod 615 drives the universal joint to rotate, so that the rod of the universal joint is completely quenched in place, thereby ensuring the product quality of the universal joint.

[0044] In this embodiment, the receiving assembly 71 includes: a sliding seat 711 vertically arranged on the machine tool 1, a supporting seat 712 horizontally arranged on the sliding seat 711, a rotating member 713 arranged on the supporting seat 712 for driving the universal joint to rotate, and a driving member 714 for driving the rotating member 713 to rotate. The universal joint to be quenched is installed on the rotating member 713 and rotates therewith. The sliding seat 711 drives the supporting seat 712 to move up and down reciprocatingly to correspond to the loading and unloading of the universal joint, so that the universal joint can smoothly perform the quenching operation of the inner cavity, and the driving member 714 provides power to drive the rotating member 713 to rotate, thereby driving the universal joint on the rotating member 713 to rotate. The process has a high degree of automation and can improve work efficiency.

[0045] In this embodiment, the rotating member 713 includes: a base 7131 for supporting the outer wall of the universal joint ball cage, a rotating shaft 7132 rotatably arranged at one end of the support seat 712, and a central shaft 7133 arranged on the inner side of the bottom of the rotating shaft 7132 for supporting the bottom end of the universal joint ball cage rod; the base 7131 is engaged with the top of the support seat 712; a fastener 716 for adjusting the position of the central shaft 7133 is arranged on the outer side of the bottom of the rotating shaft 7132, and the fastener 716 fixes the universal joint from the outside, so that the universal joint is more stable and firm, and there will be no problems such as uneven heating during quenching resulting in poor quenching effect. The rotating member 713 includes: a base 7131 for supporting the outer wall of the universal joint ball cage, a rotating shaft 7132 engaged under the base 7131, a central shaft 7133 arranged on the inner side of the bottom of the rotating shaft 7132, a hoop 7134 arranged on the outer periphery of the rotating shaft 7132 and connected to the driving member 714, and a locking member 7135 arranged between the rotating shaft 7132 and the hoop 7134. The base 7131 and the ball cage are preferably in point contact, and the central shaft 7133 and the rod of the universal joint are also preferably in point contact. The two form two-point positioning to ensure the stability of the universal joint. The locking member 7135 is used to connect the rotating shaft 7132 and the hoop 7134 so that the movement states of the two are the same, that is, the rotating shaft 7132 rotates with the hoop 7134, which can ensure that the universal joint is heated evenly and the quenching effect is good.

[0046] Of course, the driving member 714 includes: a motor 7141 arranged above the support seat 712, a first bevel gear group 7142 arranged at the output end of the motor, a second bevel gear group 7143 arranged on the clamp 7134, and a connecting shaft 7144 arranged between the first bevel gear group 7142 and the second bevel gear group 7143. The motor 7141 provides power to drive the second bevel gear group 7143 to rotate, and transmits the power to the first bevel gear group 7142 through the connecting shaft 7144. The first bevel gear group 7142 then drives the clamp 7134 to rotate, and finally drives the entire rotating member 713 to rotate. The process is simple to operate, easy to use, high in work efficiency, and easy to disassemble and assemble.

[0047] In addition, the smoke recovery mechanism 9 includes: a recovery tank 91 arranged above the universal joint to be quenched and a fan 92 arranged above the recovery tank 91, which is then discharged into the exhaust gas treatment system through a pipeline to purify the exhaust gas to ensure that the smoke is harmless before being discharged. The fan 92 works to generate negative pressure, and the smoke is sucked into the recovery tank 91. After filtering and exhaust, the purified air is finally discharged to the outside, so that the smoke can rotate and accelerate with the air in the inner cavity of the volute of the fan 92 and be blown to the outside, which can not only protect the environment, but also avoid problems such as being unable to observe in time due to excessive smoke concentration.

[0048] The working principle of this embodiment is: first, the universal joint to be quenched is placed on the workbench 2, and then the rod quenching grabbing robot 4 aligns the universal joint to grab and transfer it to the rod quenching mechanism 6, and then the rod quenching grabbing robot 4 is reset. At this time, the smoke recovery mechanism 9 starts to work until the entire machine tool 1 stops when there is no quenching operation. When the rod quenching is completed, the transition grabbing robot 8 starts to work, grabs the universal joint after the rod quenching and flips it, and transfers it to the inner cavity quenching mechanism 7, and then the transition grabbing robot 8 is reset. When the inner cavity quenching is completed, the inner cavity quenching grabbing robot 5 starts to work and transfers the quenched universal joint to the discharge table 3, and then the cycle is repeated.

[0049] Embodiment 2

[0050] like Figure 6 and Figure 7 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0051] The rotating shaft 7132 is symmetrically divided into two parts, presenting a two-petal type, which is connected in sections and connected as a whole by a clamp 7134 arranged on the outer periphery of the rotating shaft 7132; an arc groove 7136 is provided on one petal of the rotating shaft 7132, and the rotating shaft 7132 with the arc groove 7136 is adjustably connected to the clamp 7134 through a locking piece 7135 passing through the arc groove 7136, and can be adjusted accordingly according to the different odd and even numbers of teeth on the universal joint rod, so that the universal joint is more stable and firm when rotating, and the whole process is simple to operate and easy to use.

[0052] Among them, two groups of positioning components 715 are provided on the side wall of the rotating shaft 7132 for connecting the universal joint and rotating synchronously with the rotating shaft 7132. The positioning component 715 limits and fixes the universal joint from the inside, making the universal joint more stable and firm, and there will be no problems such as uneven heating during quenching, resulting in poor quenching effect.

[0053] At the same time, the positioning assembly 715 includes: a fixed plate 7152 arranged outside the rotating shaft 7132, and the fixed plate 7152 is adjustably connected to the rotating shaft 7132 through a screw 7154; it should be noted that a through hole is opened on the fixed plate 7152, and the screw 7154 passes through the through hole, and the position of the fixed plate 7152 on the screw 7154 is adjusted by using nuts 7155 arranged on both sides of the fixed plate 7152. The process is simple to operate and easy to use.

[0054] Of course, the block 7151 that is adapted to the tooth groove on the rod portion of the universal joint ball cage, one end of the block 7151 is slidably arranged on the fixed plate 7152 through a guide rod 7156, and a positioning block 7157 is arranged at the end of the guide rod 7156, and the positioning block 7157 is used to limit the moving range of the guide rod 7156, thereby ensuring the range of the block 7151, and a return spring 7153 is sleeved on the guide rod 7156, and the return spring 7153 is arranged between the fixed plate 7152 and the block 7151, for universal joints with different rod sizes, the position of the block 7151 will also change accordingly, and under the action of the screw 7154, the fixed plate 7152 will drive the block 7151 to move, and the elastic force of the return spring 7153 will not be affected by it during the whole process and will not change, so that the universal joint can be quickly positioned and fixed, thereby improving the quenching efficiency.

[0055] In addition, a certain gap, i.e., a swing gap, is left between the reset spring 7153 and the rotating shaft 7132, and the through hole on the rotating shaft 7132 is preferably in the shape of a waist-shaped hole, so that the guide rod 7156 can drive the reset spring 7153 to shift as a whole within the swing gap, thereby ensuring that the block 7151 can be smoothly inserted into the tooth groove of the universal joint rod.

[0056] Embodiment 3

[0057] like Figure 8 and Fig. 9 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0058] It also includes an adaptive adjustment component 717 which adapts the relative position of the block 7151 and the teeth of the ball cage rod; the adaptive adjustment component 717 includes: a ball 7171 and an adaptive swinging member 7172 arranged at the top of one side of the block 7151 close to the universal joint ball cage, the adaptive swinging member 7172 is installed on the fixed plate 7152, the guide rod 7156 passes through the adaptive swinging member 7172, and the position of the guide rod 7156, that is, the position of the block 7151, is adjusted by the adaptive swinging member 7172, the structure is simple, and disassembly and assembly are convenient.

[0059] Among them, after the block 7151 is squeezed by the teeth of the universal joint ball cage rod, the guiding action of the ball 7171 and the deflection of the adaptive swinging member 7172 cause the block 7151 to deflect to a certain angle, and then the block 7151 is inserted into the tooth groove of the universal joint ball cage rod under the thrust of the reset spring 7153, thereby clamping the entire universal joint to ensure its stability. It is mainly suitable for the situation that the teeth on the universal joint do not correspond to the block 7151, and the block 7151 needs to be rotated a certain angle to clamp it into the tooth groove.

[0060] In addition, it should be noted that the adaptive swinging member 7172 preferably adopts a self-aligning bearing, and the guide rod 7156 is slidably connected to the inner wall of the self-aligning bearing to ensure the free movement of the guide rod 7156.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A constant velocity universal joint automatic quenching production system, characterized in that: include: A machine tool, a workbench arranged on one side of the machine tool, a discharging table arranged on the other side of the machine tool, a rod quenching grabbing manipulator arranged near the machine tool, an inner cavity quenching grabbing manipulator arranged adjacent to the rod quenching grabbing manipulator, a rod quenching mechanism arranged inside the machine tool, an inner cavity quenching mechanism arranged adjacent to the rod quenching mechanism, and a transition grabbing manipulator for transferring a universal joint after rod quenching to the inner cavity quenching mechanism; The rod quenching mechanism comprises: a clamping assembly for clamping the universal joint, a first heater arranged on one side of the clamping assembly, and a first cooler arranged on one side of the first heater; The inner cavity quenching mechanism comprises: a receiving assembly for mounting the universal joint after the rod portion is quenched, a second heater arranged directly above the receiving assembly, and a second cooler arranged on one side of the second heater; The clamping assembly comprises: a vertically arranged moving seat, a bottom plate arranged at one side of the moving seat, a connecting seat fixedly connected to the moving seat, a limit block arranged on the connecting seat, a limit rod arranged at the bottom end of the limit block, and a handle arranged obliquely at one side of the limit block, wherein the limit rod is arranged directly opposite to the end of the universal joint rod; The receiving assembly comprises: a sliding seat vertically arranged on the machine tool, a supporting seat horizontally arranged on the sliding seat, a rotating member arranged on the supporting seat for driving the universal joint to rotate, and a driving member driving the rotating member to rotate; The rotating member comprises: a base for receiving the outer wall of the universal joint ball cage, a rotating shaft rotatably arranged at one end of the support seat, and a central shaft arranged at the inner side of the bottom of the rotating shaft for receiving the bottom end of the universal joint ball cage rod; the base is engaged with the top end of the support seat; a fastener for adjusting the position of the central shaft is arranged at the outer side of the bottom of the rotating shaft; Two groups of positioning components for connecting the universal joint to rotate synchronously with the rotating shaft are arranged on the side wall of the rotating shaft.

2. The constant velocity joint automatic quenching production system according to claim 1 is characterized in that: The rotating shaft is symmetrically divided into two parts, which are connected as a whole by a clamp arranged on the outer periphery of the rotating shaft; an arc groove is provided on one petal of the rotating shaft, and the rotating shaft with the arc groove is adjustably connected to the clamp through a locking piece passing through the arc groove.

3. The constant velocity joint automatic quenching production system according to claim 1 is characterized in that: The positioning component comprises: A fixing plate is arranged outside the rotating shaft, and the fixing plate is adjustably connected to the rotating shaft via a screw; A clamping block is matched with the tooth groove on the rod part of the universal joint ball cage, one end of which is slidably arranged on the fixed plate through a guide rod, a positioning block is arranged at the end of the guide rod, and a reset spring is sleeved on the guide rod.

4. The constant velocity joint automatic quenching production system according to claim 3 is characterized in that: It also includes an adaptive adjustment component that adapts the relative position of the clamping block and the teeth of the ball cage rod; the adaptive adjustment component includes: A ball disposed at the top of one side of the block close to the universal joint ball cage; An adaptive swinging member, wherein the adaptive swinging member is mounted on the fixing plate, and the guide rod passes through the adaptive swinging member; After the clamping block is squeezed by the teeth of the universal joint ball cage rod, the clamping block is deflected by a certain angle due to the guiding effect of the ball and the deflection of the adaptive swinging member, and then the clamping block is inserted into the tooth groove of the universal joint ball cage rod under the thrust of the return spring.

5. The constant velocity joint automatic quenching production system according to claim 2, characterized in that: The driving member includes: a motor arranged above the support seat, a first bevel gear set arranged at the output end of the motor, a second bevel gear set arranged on the hoop, and a connecting shaft arranged between the first bevel gear set and the second bevel gear set.

6. The constant velocity joint automatic quenching production system according to claim 1, characterized in that: It also includes a fume recovery mechanism disposed above the rod quenching mechanism for collecting fume generated during quenching, and the fume recovery mechanism includes: a recovery tank disposed above the universal joint to be quenched and a fan disposed above the recovery tank.

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