Efficient shaft machining device

Abstract

The invention relates to the technical field of machining, and particularly discloses an efficient shaft machining device which comprises a rack and a heating box installed on the rack through a supporting frame, a heating unit is installed in the heating box, and a bearing frame is slidably connected to the interior of the rack; a positioning piece used for positioning a first fixing station of a workpiece is arranged on the bearing frame, and a reverse pressure applying part is further arranged between the positioning piece and the bearing frame; a hydraulic rod used for driving the bearing frame to vertically slide in the rack is arranged in the rack, and a clamping switching mechanism used for fixing a second fixing station of the workpiece is arranged in the heating box. The workpiece can be uniformly heated in all directions in the heating process, so that the heat treatment consistency and the uniformity of the overall performance of the workpiece are remarkably improved, the problem that the workpiece is scrapped or reworked due to local non-quenching or insufficient heating in the prior art is solved, and the material utilization rate and the finished product percent of pass are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining, in particular to a high-efficiency shaft machining device. BACKGROUND

[0002] Workpieces are important components of machines, and there are many types and quantities of them. Single appearance can be divided into square workpieces, shaft workpieces, disc workpieces, etc. Generally, workpieces with roughly cylindrical appearance can be called shaft workpieces.

[0003] Shaft workpieces are core components in mechanical systems, and usually need to withstand high torque, alternating load and severe friction and wear. In order to meet these harsh working condition requirements, quenching treatment is a key process to improve its performance. At present, induction quenching has become the mainstream technology for quenching of shaft parts due to its high efficiency and precision.

[0004] The purpose of quenching is to make the supercooled austenite transform into martensite or bainite, and then cooperate with different temperature tempering, so as to greatly improve the strength, hardness, wear resistance, fatigue strength and toughness of the steel, so as to meet the different use requirements of various mechanical parts and tools. It can also meet the special physical and chemical properties such as ferromagnetism and corrosion resistance of some special steels through quenching.

[0005] In the prior art, for example, a Chinese patent with the patent number CN110117704B and the name of a mechanical shaft part quenching device is disclosed. The patent discloses a mechanical shaft part quenching device, which comprises a water tank, a workpiece base, a high-frequency quenching machine, a high-frequency copper coil and a controller. The controller is used for the work of the part quenching device. The top of the water tank is provided with an opening. The upper end of the water tank is fixedly installed with the workpiece base. The workpiece base covers half of the opening of the water tank. Three high-frequency quenching machines are fixedly installed on the upper side of the workpiece base. The diameters of the high-frequency copper coils installed on the high-frequency quenching machines are different.

[0006] For another example, a Chinese patent with the patent number CN107739792A and the name of a mechanical shaft part quenching device is disclosed. The patent discloses a mechanical shaft part quenching device, which comprises a supporting leg, a placing plate, a placing block, a moving mechanism, a clamping mechanism, a water tank, a conduit and a valve. The bottom between the inner walls of the left and right supporting legs is connected with the placing plate. The top right side of the placing plate is provided with the placing block. The middle part of the placing block is provided with a positioning groove. The top of the left and right supporting legs is provided with the moving mechanism. The moving part of the moving mechanism is provided with the clamping mechanism.

[0007] In summary, the prior art such as authorized announcement number CN110117704B, CN214991711U and other prior art in the prior art can know that when the shaft workpiece is heat treated, the workpiece end is usually clamped by a clamping mechanism, the clamping mechanism moves the shaft workpiece into the heat treatment box for heat treatment operation, and after the heat treatment operation is completed, the clamping mechanism moves the heat treated shaft workpiece into the water tank for quenching operation, so as to complete the processing requirement of the workpiece.

[0008] However, the following problems still exist in the above operation process: during clamping of the shaft workpiece by the clamping mechanism, the clamping mechanism and the shaft workpiece are in contact at this moment, the area of the shaft workpiece blocked by the clamping mechanism is difficult to be effectively heated, and the shaft workpiece is unevenly heated, which causes the mechanical properties and organizational state of different parts of the same workpiece to be inconsistent, which is difficult to meet the overall use requirement, resulting in the whole workpiece being scrapped, in order to save part of the workpiece which is not heated in place, the section which does not meet the heat treatment requirement is often cut off, causing material waste and increasing processing cost. SUMMARY

[0009] The purpose of the present application is to provide an efficient shaft processing device to solve the problems raised in the above background art.

[0010] To achieve the above purpose, the present application provides the following technical scheme: an efficient shaft processing device, comprising a rack and a heating box installed on the rack through a support frame, a heating unit is installed inside the heating box, a bearing frame is slidably connected inside the rack, a positioning member for positioning a first fixed station of a workpiece is arranged on the bearing frame, and a reverse pressure applying part is further arranged between the positioning member and the bearing frame; a hydraulic rod for driving the bearing frame to vertically slide inside the rack is arranged inside the rack, and a clamping switching mechanism for fixing a second fixed station of the workpiece is arranged inside the heating box, when the hydraulic rod drives the workpiece to move upward into the heating box and continues to drive the workpiece to move upward, the clamping switching mechanism drives the positioning member to unlock the first fixed station of the workpiece through the reverse pressure applying part during the travel of the second fixed station of the workpiece.

[0011] Further, the positioning member comprises a plurality of auxiliary support blocks slidably connected to the bearing frame, each auxiliary support block is provided with a connecting rod, a first positioning spring is arranged between the connecting rod and the bearing frame, and the elastic force of a plurality of first positioning springs causes the plurality of auxiliary support blocks to approach each other; the reverse pressure applying part comprises a contact plate slidably connected to the bearing frame, a third positioning spring is arranged between the contact plate and the bearing frame, and a pressure applying part is arranged between the contact plate and the plurality of auxiliary support blocks.

[0012] Furthermore, a quenching box is provided on the frame, and the quenching box is filled with quenching liquid. A support triggering mechanism is provided between the quenching box and the support frame, and a support unit is slidably connected to each auxiliary support block. When the support frame slides to the bottom of the quenching box, the support triggering mechanism drives the positioning component away from the workpiece, so that the support unit repositions the workpiece.

[0013] Furthermore, the clamping switching mechanism includes multiple clamping plates slidably connected inside the heating box, and a sliding plate is also vertically slidably connected inside the heating box. A return spring is provided between the sliding plate and the heating box, and the sliding plate and the multiple clamping plates are rotatably connected by a support rod; a locking part is also provided between the sliding plate and the heating box.

[0014] Furthermore, a pressure release component is provided between the support frame and the sliding plate, so that the workpiece is unlocked during the stroke of the return spring after the locking part unlocks the sliding plate and the return spring recovers its elastic deformation.

[0015] Furthermore, the pressure release component includes a fixed rod fixedly connected to the support frame, and a rotating block is installed on the fixed rod via a connector; it also includes an extension frame disposed on the sliding plate, and a locking block is fixedly connected to the extension frame, with the rotating block intermittently abutting against the locking block; the heating box has an adapter groove inside that is adapted to the extension frame, and the extension frame is slidably connected to the adapter groove.

[0016] Furthermore, the support triggering mechanism includes a mounting plate fixedly connected to the bottom of the quenching box, and trigger rods of the same number as the auxiliary support blocks are fixedly connected to the mounting plate. The bottom of the auxiliary support block is provided with a power groove. When the trigger rod abuts against the power block through the power groove, the trigger rod drives the auxiliary support block to slide away from the workpiece.

[0017] Furthermore, the support unit includes a sliding support plate slidably connected to the auxiliary support block, and a linkage is provided between the sliding support plate and the auxiliary support block; an intermittent abutment block is fixedly connected to the sliding support plate, and a second positioning spring is provided between the intermittent abutment block and the auxiliary support block; when the trigger rod drives the auxiliary support block to slide away from the workpiece during its stroke, the linkage drives the sliding support plate to slide closer to the workpiece, so that the multiple intermittent abutment blocks fix the workpiece.

[0018] Furthermore, an extension column is fixedly connected to the bottom of the sliding plate, and the workpiece drives the sliding plate to slide inside the heating box through the extension column. An elastic buffer part is installed at the bottom of the extension column.

[0019] Furthermore, the connecting member includes a shaft rotatably connected to the fixed rod, the rotating block is rotatably connected to the fixed rod through the shaft, and a torsion spring is also provided between the shaft and the fixed rod.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: In the operation of this high-efficiency shaft processing device, after the bearing frame drives the workpiece to be heated inside the heating box for a certain period of time, when the bearing frame is driven to continue moving upward, the clamping switching mechanism will fix the workpiece through the second fixed station. During the stroke of the clamping switching mechanism fixing the second fixed station of the workpiece, the positioning part is driven by the reverse pressure part to unlock the first fixed station of the workpiece. At this time, the positioning part is away from the workpiece. Therefore, when the hydraulic rod drives the bearing frame to reset downward, the entire bearing frame is away from the workpiece. At this time, the heating unit can heat the area of ​​the workpiece that was previously blocked by the bearing frame and the positioning part, which can improve the uniformity of the overall heating of the workpiece.

[0021] In the aforementioned process, by setting up dual fixed stations (a first fixed station and a second fixed station) for positioning components and clamping switching mechanisms, the clamping position is automatically switched when the workpiece enters the heating chamber, effectively avoiding the heating dead zone problem caused by clamping components obstructing the heating process in traditional clamping methods. Therefore, the workpiece can achieve uniform heating from all directions during the heating process, significantly improving the consistency of heat treatment and the uniformity of the overall workpiece performance. This solves the problem of workpiece scrapping or rework caused by localized unquenched or insufficiently heated areas in existing technologies, greatly improving material utilization and finished product qualification rate. Simultaneously, it eliminates the need to separately treat unheated parts of the workpiece, increasing workpiece processing efficiency.

[0022] Furthermore, during the quenching process, the hydraulic rod drives the support frame to move downwards carrying the heated workpiece. At this time, the quenching fluid quenches the workpiece. As the support frame moves downwards, the trigger rod on the mounting plate interacts with the power groove at the bottom of the auxiliary support block, causing the auxiliary support block to slide away from the workpiece. The quenching fluid then quenches the workpiece at its first fixed position, which was previously in contact with the positioning component, further improving the full coverage of the workpiece during quenching. Moreover, during the sliding motion of the auxiliary support block away from the workpiece, the support unit on the auxiliary support block drives the sliding support plate to slide closer to the workpiece via a linkage component. The workpiece is then repositioned secondary by intermittent contact blocks, preventing it from tipping over. This secondary positioning method further ensures the stability of the workpiece during the quenching process, thus guaranteeing the consistency of the workpiece's performance after quenching while preventing it from tipping over. This is an unexpected technical effect with enhanced practicality. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall top view structure provided for an embodiment of the present invention; Figure 3 for Figure 2 Schematic diagram of the structure in sectional view along the AA section; Figure 4 This is a schematic diagram of the installation position structure of the quenching box provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the installation state of the workpiece and the positioning component provided in an embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the connection between the positioning element and the reverse pressure part provided in an embodiment of the present invention; Figure 7 This is a partial structural diagram of the reverse pressure section provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the closed state structure of the support triggering mechanism provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the support unit and the workpiece contacting each other, provided in an embodiment of the present invention. Figure 10 A cross-sectional view of the support unit and the workpiece provided in an embodiment of the present invention; Figure 11 This is a partial structural diagram of the clamping and switching mechanism provided in an embodiment of the present invention; Figure 12 This is a schematic diagram of the workpiece being installed inside the heating chamber according to an embodiment of the present invention; Figure 13 This is a top view of the workpiece installed inside the heating chamber according to an embodiment of the present invention; Figure 14 for Figure 13 Schematic diagram of the cross-sectional structure along the middle BB line; Figure 15 for Figure 14 Enlarged structural diagram of region A in the middle; Figure 16 This is a schematic diagram of the connection method between the linkage component and the support unit provided in an embodiment of the present invention; Figure 17 This is a schematic diagram of the internal structure of the workpiece located in the quenching box, as provided in an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Heating box; 3. Support frame; 4. Workpiece; 5. Bearing frame; 6. Hydraulic rod; 7. Heating unit; 8. Quenching box; 9. Quenching fluid; 10. Positioning component; 101. Auxiliary support block; 102. Connecting rod; 103. First positioning spring; 104. Arc-shaped surface; 11. Reverse pressure part; 111. Contact plate; 112. Vertical rod; 113. Pressure plate; 114. Pressure groove; 115. Third positioning spring; 12. Clamping switching mechanism; 121. Clamping plate; 122. Sliding plate; 123. 124. Support rod; 125. First permanent magnet; 126. Second permanent magnet; 127. Return spring; 128. Extension column; 13. Elastic buffer part; 14. Pressure release part; 141. Extension frame; 142. Locking block; 143. Rotating block; 144. Adaptor groove; 145. Fixed rod; 15. Support triggering mechanism; 151. Mounting plate; 152. Trigger rod; 153. Power groove; 16. Support unit; 161. Sliding support plate; 162. Intermittent abutment block; 163. Second positioning spring; 17. Moving part; 18. Linkage part. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-17 This invention provides a technical solution: a high-efficiency shaft processing device, including a frame 1 and a heating box 2 mounted on the frame 1 via a support frame 3. A heating unit 7 is installed inside the heating box 2. A bearing frame 5 is slidably connected inside the frame 1, and a positioning element 10 for positioning a first fixed position of a workpiece 4 is provided on the bearing frame 5. A reverse pressure part 11 is also provided between the positioning element 10 and the bearing frame 5. A hydraulic rod 6 is provided inside the frame 1 for driving the bearing frame 5 to slide vertically inside the frame 1. A clamping switching mechanism 12 for fixing a second fixed position of the workpiece 4 is provided inside the heating box 2. When the hydraulic rod 6 drives the workpiece 4 to move upward into the heating box 2 and continues to drive the workpiece 4 to move upward, the clamping switching mechanism 12, during the stroke of fixing the second fixed position of the workpiece 4, drives the positioning element 10 to unlock the first fixed position of the workpiece through the reverse pressure part 11.

[0028] Specifically, this high-efficiency shaft processing device includes a frame 1 and a heating chamber 2 mounted on the frame 1 via a support frame 3. A movable component 17 is provided at the bottom of the frame 1 to improve the flexibility of the processing device during operation. The heating chamber 2 houses a heating unit 7, specifically including a high-frequency copper coil. When a high-frequency current passes through the copper coil, a high-frequency alternating magnetic field is generated around it. Metal workpieces placed in this magnetic field will generate eddy currents within them. These eddy currents collide with the atoms within the metal, generating a large amount of heat and achieving rapid heating of the workpiece. Simultaneously, the copper coil has good conductivity, enabling efficient transmission of high-frequency current, reducing energy loss, and improving heating efficiency. Preferably, the heating unit 7 can be divided into upper, middle, and lower heating zones, each controlled by a different heating source, allowing for temperature adjustment of the three zones to meet subsequent processing requirements.

[0029] The frame 1 has a sliding connection to a support frame 5. Specifically, the bottom part of the workpiece 4 is the first fixed station, and the top part is the second fixed station. The support frame 5 is provided with a positioning component 10 for positioning the first fixed station of the workpiece 4. That is, in the original state, the positioning component 10 fixes the workpiece 4. At this time, the positioning component 10 fixes the workpiece 4 through the first fixed station, which can improve the stability of the workpiece 4 during installation.

[0030] A reverse pressure part 11 is provided between the positioning part 10 and the bearing frame 5. When the workpiece 4 is installed on the bearing frame 5, the workpiece 4 is in contact with the reverse pressure part 11. When the top of the workpiece 4 is squeezed, the workpiece 4 will press down on the reverse pressure part 11 under the reaction to meet the needs of subsequent processing.

[0031] Specifically, the frame 1 is equipped with a hydraulic rod 6 for driving the support frame 5 to slide vertically within the frame 1. Preferably, a vertical groove is provided on the support frame 5, and fixed plates are fixedly connected to both sides of the support frame 5. The hydraulic rod 6 drives the support frame 5 to slide vertically through the fixed plates. Preferably, a sealing unit is provided on the frame 1 to seal the installation area of ​​the hydraulic rod 6, thereby improving the service life of the hydraulic rod 6 to a certain extent.

[0032] The heating box 2 is equipped with a clamping and switching mechanism 12 for fixing the workpiece 4 at a second fixed station. More specifically, the clamping and switching mechanism 12 fixes the workpiece 4 at the second fixed station, thereby improving the stability of the workpiece 4 during installation.

[0033] Specifically, during use, the heating unit 7 on the heating box 2 is activated, and then the workpiece 4 is installed on the support frame 5. The positioning member 10 is used to fix the workpiece 4. Then, the hydraulic rod 6 drives the support frame 5 to move upward, and the workpiece 4 is transported into the heating box 2. After the workpiece 4 is inside the heating box 2, the clamping and switching mechanism 12 does not block the workpiece 4 through the second fixed station. Therefore, the heating unit 7 can effectively heat treat the area of ​​the workpiece 4 above the first fixed station. After heating for a certain period of time, when the carrier frame 5 continues to move upward, the clamping switching mechanism 12 will fix the workpiece 4 through the second fixed station. During the stroke of the clamping switching mechanism 12 fixing the second fixed station of the workpiece 4, the positioning member 10 is driven by the reverse pressure part 11 to unlock the first fixed station of the workpiece 4. At this time, the positioning member 10 is away from the workpiece 4. Therefore, when the hydraulic rod 6 drives the carrier frame 5 to reset downward, the entire carrier frame 5 is away from the workpiece 4. At this time, the heating unit 7 can heat the area of ​​the workpiece 4 that was previously blocked by the first fixed station of the workpiece 4 by the carrier frame 5 and the positioning member 10, which can improve the overall heating uniformity of the workpiece 4.

[0034] During this process, by setting up a dual fixed station (a first fixed station and a second fixed station) for the positioning component 10 and the clamping switching mechanism 12, the clamping position is automatically switched when the workpiece 4 enters the heating chamber 2, effectively avoiding the heating dead zone problem caused by the clamping component blocking the heating in traditional clamping methods. Therefore, the workpiece 4 can achieve all-round uniform heating during the heating process, significantly improving the consistency of heat treatment and the uniformity of the overall performance of the workpiece. This solves the problem of workpiece scrapping or rework caused by local unquenched or insufficient heating in the prior art, greatly improving material utilization and finished product qualification rate. At the same time, there is no need to separately treat the unheated parts of the workpiece 4, thus improving the processing efficiency of the workpiece 4.

[0035] More specifically, in the upper, middle and lower heating regions of the heating unit 7, since the middle region of the workpiece 4 needs to be heated twice, the temperature of the middle region is lower than that of the upper and lower regions, thereby achieving uniform heating of the workpiece 4 as a whole and improving the processing quality of the workpiece 4.

[0036] In the embodiments provided by the present invention, the positioning component 10 includes a plurality of auxiliary support blocks 101 slidably connected to the bearing frame 5. Preferably, each auxiliary support block 101 has a wedge-shaped mounting groove. When the workpiece 4 is to be installed between the positioning components 10, the bottom of the workpiece 4 abuts against the wedge-shaped mounting groove. Therefore, the positioning and installation of the workpiece 4 can be achieved by directly pressing the workpiece 4. Specifically, the auxiliary support block 101 has an arc-shaped surface 104, which is adapted to the outer arc surface of the workpiece 4, further improving the stability of the workpiece 4 during installation. Meanwhile, each auxiliary support block 101 is equipped with a connecting rod 102, and a first positioning spring 103 is provided between the connecting rod 102 and the bearing frame 5. The elastic force of the multiple first positioning springs 103 causes the multiple auxiliary support blocks 101 to move closer to each other. During this process, the structure can stably position the workpiece 4 from multiple directions, which improves the stability of the workpiece during the processing, makes it less prone to displacement during heating and quenching, and ensures the processing accuracy. The reverse pressure part 11 includes a contact plate 111 slidably connected to the support frame 5. A third positioning spring 115 is provided between the contact plate 111 and the support frame 5. Pressure parts are provided between the contact plate 111 and multiple auxiliary support blocks 101. Specifically, the pressure part includes a vertical rod 112 fixedly connected to the bottom of the contact plate 111, and pressure plates 113 with the same number as the auxiliary support blocks 101 are fixedly connected to the vertical rod 112. Each connecting plate has a pressure groove 114 at its bottom, and the pressure plate 113 and the pressure groove 114 intermittently abut against each other. During use, when the top of workpiece 4 is restricted, and the support frame 5 continues to drive workpiece 4 upward (with workpiece 4 as the reference), the contact plate 111 slides downward. This causes the vertical rod 112 to drive multiple pressure plates 113 downward. The cooperation of the pressure plates 113 and the pressure groove 114 drives the auxiliary support block 101 to slide away from workpiece 4, thus releasing workpiece 4 from the support frame 5. This facilitates separation of workpiece 4 from the support frame 5, allowing for rapid switching between different processing stages and improving processing efficiency. Preferably, a third positioning spring 115 is provided between the vertical rod 112 and the support frame 5. The elastic force of the third positioning spring 115 drives the contact plate 111 upward, releasing the pressure on the auxiliary support block 101 and allowing the auxiliary support block 101 to clamp and fix workpiece 4 again within a specific time.

[0037] In the embodiments provided by this invention, a quenching box 8 is provided on the frame 1, and the quenching box 8 is filled with quenching liquid 9, which includes water and other chemical products are added to the water to improve the processing quality of the workpiece 4. A support triggering mechanism 15 is provided between the quenching box 8 and the support frame 5, and a support unit 16 is slidably connected to each auxiliary support block 101. When the support frame 5 slides towards the bottom of the quenching box 8, the support triggering mechanism 15 drives the positioning member 10 away from the workpiece 4, causing the support unit 16 to reposition the workpiece 4. As is known, after the workpiece 4 is heated, it needs to be quenched. When the support frame 5 slides downwards to perform the quenching operation, the positioning component 10 positions the workpiece 4, and the quenching fluid 9 quenches the workpiece 4. As the support frame 5 moves downwards, the support triggering mechanism 15 drives the auxiliary support block 101 to slide away from the workpiece 4. The quenching fluid 9 then quenches the workpiece 4 at its first fixed position, which was previously in contact with the positioning component 10, further improving the full coverage of the workpiece 4 during quenching. Furthermore, as the support triggering mechanism 15 drives the positioning component 10 away from the workpiece 4, the support unit 16 repositions the workpiece 4, preventing it from shaking or shifting in the quenching fluid 9. This ensures the uniformity and consistency of the quenching process and prevents the workpiece 4 from tipping over during quenching. This unexpected technical effect enhances practicality and avoids the need for subsequent retrieval equipment, saving resources and costs.

[0038] Preferably, multiple drainage holes are provided on the support frame 5 to facilitate water leakage from the support frame 5, prevent liquid stagnation in the support frame 5, and facilitate timely discharge of the quenching liquid 9.

[0039] In the embodiments provided by the present invention, the clamping switching mechanism 12 includes multiple clamping plates 121 slidably connected inside the heating box 2. Preferably, there are four clamping plates 121, which are arranged in a circumferential array around the sliding plate 122. The sliding plate 122 is also vertically slidably connected inside the heating box 2. A return spring 126 is provided between the sliding plate 122 and the heating box 2. The sliding plate 122 and the multiple clamping plates 121 are rotatably connected by a support rod 123. Therefore, when the sliding plate 122 slides upward, it will drive the multiple clamping plates 121 to move closer synchronously, fix the workpiece 4, and at the same time, make the workpiece 4 located at the center of the heating box 2, further improving the uniformity of the workpiece 4 being heated. A locking part is provided between the sliding plate 122 and the heating box 2. Specifically, the locking part includes a second permanent magnet 125 installed on the heating box 2, and a first permanent magnet 124 is provided on the sliding plate 122. The first permanent magnet 124 and the second permanent magnet 125 are magnetically attracted to each other, and the magnetic attraction force between the first permanent magnet 124 and the second permanent magnet 125 is greater than the elastic force of the return spring 126. Therefore, when the first permanent magnet 124 and the second permanent magnet 125 are attracted to each other, the elastic force of the return spring 126 cannot drive the first permanent magnet 124 and the second permanent magnet 125 to separate. During the operation, when the support frame 5 moves the workpiece 4 upward, the top of the workpiece 4 abuts against the sliding plate 122 and continues to drive the sliding plate 122 to slide upward. As the sliding plate 122 slides upward, it will drive multiple clamping plates 121 to move closer to each other through the support rod 123, fixing the second fixed position of the workpiece 4. During the upward sliding of the sliding plate 122, it will drive the first permanent magnet 124 to move closer to the second permanent magnet 125. Finally, the first permanent magnet 124 and the second permanent magnet 125 are magnetically attracted. At this time, the multiple clamping plates 121 will fix the workpiece 4, which can improve the stability of the workpiece 4 during installation, facilitate the rapid switching of the workpiece 4 between different processing stages, and improve processing efficiency.

[0040] Preferably, an extension column 127 is fixedly connected to the bottom of the sliding plate 122. The workpiece 4 drives the sliding plate 122 to slide inside the heating box 2 through the extension column 127. During use, when the workpiece 4 moves upward, it will first contact the extension column 127. The extension column 127 drives the sliding plate 122 to move upward. An elastic buffer part 13 is installed at the bottom of the extension column 127. The elastic coefficient of the elastic buffer part 13 is greater than the elastic coefficient of the return spring 126. When the workpiece 4 moves upward, the workpiece 4 will drive the extension column 127 to slide upward together through the elastic buffer part 13, so that the sliding plate 122 overcomes the elastic force of the return spring 126 and moves upward until the sliding plate 122 can no longer move upward. At this time, the elastic buffer part 13 will slide at the bottom of the extension column 127 to avoid motion interference.

[0041] In the embodiments provided by the present invention, a pressure release member 14 is provided between the bearing frame 5 and the sliding plate 122, so that the workpiece 4 is unlocked during the stroke of the return spring 126 restoring its elastic deformation after the locking part unlocks the sliding plate 122. Specifically, the setting of the pressure release member 14 ensures that the workpiece 4 is successfully unlocked during the process of the return spring 126 restoring its elastic deformation after the locking part unlocks the sliding plate 122, thus ensuring the smooth switching of the workpiece 4 between different processing stages and avoiding workpiece damage or processing failure due to insecure clamping or untimely unlocking, thereby meeting the process requirements.

[0042] In the embodiments provided by the present invention, the pressure release component 14 includes a fixed rod 145 fixedly connected to the bearing frame 5. A rotating block 143 is mounted on the fixed rod 145 via a connector. The connector includes a shaft rotatably connected to the fixed rod 145. The rotating block 143 is rotatably connected to the fixed rod 145 via the shaft, i.e., the rotating block 143 is rotatably connected to the shaft. A torsion spring is also provided between the shaft and the fixed rod 145. The elastic force of the torsion spring is greater than the magnetic attraction force between the first permanent magnet 124 and the second permanent magnet 125. The elastic force of the torsion spring drives the rotating block 143 to a horizontal state. It also includes an extension frame 141 mounted on the sliding plate 122. A locking block 142 is fixedly connected to the extension frame 141. A rotating block 143 intermittently abuts against the locking block 142. Under the action of a torsion spring, after the rotating block 143 abuts against the locking block 142, when the support frame 5 moves downward, the rotating block 143 pulls the locking block 142 downward, causing the first permanent magnet 124 and the second permanent magnet 125 to separate through the extension frame 141. The heating box 2 has an adapter groove 144 that matches the extension frame 141. The extension frame 141 is slidably connected to the adapter groove 144. When the extension frame 141 slides to the limit position of the adapter groove 144 (when the extension frame 141 slides and contacts the adapter groove 144), the extension frame 141 can no longer slide downward.

[0043] Specifically, in practical applications, after the workpiece 4 is heated inside the heating box 2, the hydraulic rod 6 drives the support frame 5 to move upward. During the upward movement of the support frame 5, the bottom of the workpiece 4 is directly engaged between multiple auxiliary support blocks 101. When the support frame 5 continues to move upward, the elastic buffer part 13 will slide at the bottom of the extension column 127 to avoid motion interference. Therefore, during the upward movement of the support frame 5 and the workpiece 4, the support frame 5 drives the fixed rod 145 to move upward together. The rotating block 143 on the fixed rod 145 rotates under the contact of the locking block 142 until the rotating block 143 is successfully restricted by the locking block 142 and then resets under the action of the torsion spring, so that the rotating block 143 is in a horizontal state and engaged with the locking block 142. Then, when the hydraulic rod 6 drives the bearing frame 5 to slide downward, the rotating block 143, under the action of the torsion spring, abuts against the locking block 142, causing the locking block 142 to slide downward together. This causes the first permanent magnet 124 and the second permanent magnet 125 to separate via the extension frame 141. After a certain distance of separation, the spring force of the return spring 126 drives the first permanent magnet 124 and the second permanent magnet 125 to separate further, causing the sliding plate 122 to slide downward and drive multiple clamping plates 121 to slide away from the workpiece 4, thus unlocking the workpiece 4. During the stroke of the clamping plate 121 unlocking the workpiece 4, the contact plate 111 is driven upward by the action of the third positioning spring 115, thus releasing the restriction on the auxiliary support block 101. At this moment, the auxiliary support block 101, under the pressure of the first positioning spring 103, fixes the workpiece 4, improving the stability of the workpiece 4 during installation. Therefore, during the downward movement of the support frame 5, the workpiece 4 can be fixed again by the auxiliary support block 101 during the stroke after the switching clamping mechanism is unlocked, thus meeting the process requirements.

[0044] In the embodiments provided by the present invention, the support triggering mechanism 15 includes a mounting plate 151 fixedly connected to the bottom of the quenching box 8. The mounting plate 151 has trigger rods 152, the same number as the auxiliary support blocks 101, fixedly connected to it. A power groove 153 is provided at the bottom of the auxiliary support block 101. When the trigger rod 152 abuts against the power block through the power groove 153, the trigger rod 152 drives the auxiliary support block 101 to slide away from the workpiece 4. The power groove 153 is a wedge-shaped groove, and a wedge-shaped block is provided on the top of the trigger rod 152. When the wedge block abuts against the wedge groove, it automatically triggers the auxiliary support block 101 to slide away from the workpiece 4. At this time, the quenching liquid 9 can contact and quench the area of ​​the first fixed position on the workpiece 4 previously blocked by the auxiliary support block 101, ensuring the consistency of the workpiece's performance after quenching and significantly improving the performance. Simultaneously, the trigger rod 152 is slidably connected to the bearing frame 5, which can limit the bearing frame 5 to a certain extent, resulting in better performance. Preferably, all the internal mechanisms of the load-bearing frame 5 have undergone anti-corrosion and anti-rust treatments to improve the service life of the device.

[0045] In the embodiments provided by the present invention, the support unit 16 includes a sliding support plate 161 slidably connected to the auxiliary support block 101, and a linkage member 18 is also provided between the sliding support plate 161 and the auxiliary support block 101. Specifically, the linkage member 18 includes a gear rotatably connected inside the bearing frame 5, and a first rack is fixedly connected to the sliding connection plate, and a second rack is fixedly connected to the connecting rod 102. Both the first rack and the second rack are slidably connected to the bearing frame 5, and the first rack and the second rack are respectively meshed on the upper and lower sides of the gear. Specifically, an intermittent abutment block 162 is fixedly connected to the sliding support plate 161, and a second positioning spring 163 is provided between the intermittent abutment block 162 and the auxiliary support block 101. When the trigger rod 152 drives the auxiliary support block 101 to slide away from the workpiece 4, the linkage member 18 drives the sliding support plate 161 to slide closer to the workpiece 4, so that the multiple intermittent abutment blocks 162 fix the workpiece 4. In the actual application scenario, when the support frame 5 moves downward to the bottom of the quenching box 8, it is driven by the trigger rod 152 to drive the connecting rod 102 to slide the auxiliary support block 101 away from the workpiece 4. During this stroke, the sliding support plate 161 is driven by the cooperation of the first rack, the second rack and the gear to drive the intermittent abutment block 162 to contact the workpiece 4 and position the workpiece 4. This ensures the consistency of the workpiece's performance after quenching while preventing the workpiece 4 from tipping over. This is an unexpected technical effect.

[0046] It should be noted that all electrical equipment involved in this application can be powered by batteries or external power sources, and this application is equipped with a control system for controlling the operation of the entire equipment.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency shaft processing device, comprising a frame (1) and a heating box (2) mounted on the frame (1) via a support frame (3), wherein a heating unit (7) is installed inside the heating box (2), characterized in that: The frame (1) is slidably connected to a support frame (5), and the support frame (5) is provided with a positioning component (10) for positioning the first fixed position of the workpiece (4). A reverse pressure part (11) is also provided between the positioning component (10) and the support frame (5). The frame (1) is provided with a hydraulic rod (6) for driving the bearing frame (5) to slide vertically inside the frame (1), and the heating box (2) is provided with a clamping switching mechanism (12) for fixing the workpiece (4) at the second fixed station. When the hydraulic rod (6) drives the workpiece (4) upward into the heating box (2) and continues to drive the workpiece (4) upward, the clamping switching mechanism (12) fixes the second fixed position of the workpiece (4) during the stroke, and drives the positioning member (10) to unlock the first fixed position of the workpiece through the reverse pressure part (11).

2. The high-efficiency shaft machining device according to claim 1, characterized in that: The positioning component (10) includes a plurality of auxiliary support blocks (101) slidably connected to the support frame (5). Each auxiliary support block (101) is equipped with a connecting rod (102), and a first positioning spring (103) is provided between the connecting rod (102) and the support frame (5). The elastic force of the plurality of first positioning springs (103) causes the plurality of auxiliary support blocks (101) to move closer to each other. The reverse pressure part (11) includes a contact plate (111) slidably connected to the support frame (5), a third positioning spring (115) is provided between the contact plate (111) and the support frame (5), and a pressure part is provided between the contact plate (111) and a plurality of auxiliary support blocks (101).

3. The high-efficiency shaft machining device according to claim 2, characterized in that: The frame (1) is provided with a quenching box (8), which is filled with quenching liquid (9). A support triggering mechanism (15) is provided between the quenching box (8) and the bearing frame (5), and a support unit (16) is slidably connected to each auxiliary support block (101). When the support frame (5) slides to the bottom of the quenching box (8), the support triggering mechanism (15) drives the positioning part (10) away from the workpiece (4) during the stroke, so that the support unit (16) repositions the workpiece (4).

4. The high-efficiency shaft machining device according to claim 2, characterized in that: The clamping switching mechanism (12) includes multiple clamping plates (121) slidably connected inside the heating box (2), and a sliding plate (122) is also vertically slidably connected inside the heating box (2). A return spring (126) is provided between the sliding plate (122) and the heating box (2). The sliding plate (122) and the multiple clamping plates (121) are rotatably connected by a support rod (123). A locking part is also provided between the sliding plate (122) and the heating box (2).

5. The high-efficiency shaft machining device according to claim 4, characterized in that: A pressure release member (14) is provided between the bearing frame (5) and the sliding plate (122) so that the workpiece (4) is unlocked during the stroke of the return spring (126) after the locking part unlocks the sliding plate (122) and the return spring (126) restores its elastic deformation.

6. The high-efficiency shaft machining device according to claim 5, characterized in that: The pressure release component (14) includes a fixed rod (145) fixedly connected to the bearing frame (5), and a rotating block (143) is installed on the fixed rod (145) via a connector. It also includes an extension frame (141) disposed on the sliding plate (122), on which a locking block (142) is fixedly connected, and the rotating block (143) intermittently abuts against the locking block (142); The heating box (2) has an adapter groove (144) inside that is compatible with the extension frame (141), and the extension frame (141) is slidably connected to the adapter groove (144).

7. The high-efficiency shaft machining device according to claim 3, characterized in that: The support triggering mechanism (15) includes a mounting plate (151) fixedly connected to the bottom of the quenching box (8), and a number of trigger rods (152) fixedly connected to the mounting plate (151) in the same number as the auxiliary support blocks (101). The bottom of the auxiliary support block (101) is provided with a power groove (153). When the trigger rod (152) comes into contact with the power block through the power groove (153), the trigger rod (152) drives the auxiliary support block (101) to slide away from the workpiece (4).

8. The high-efficiency shaft machining device according to claim 7, characterized in that: The support unit (16) includes a sliding support plate (161) that is slidably connected to the auxiliary support block (101), and a linkage (18) is also provided between the sliding support plate (161) and the auxiliary support block (101). An intermittent abutment block (162) is fixedly connected to the sliding support plate (161), and a second positioning spring (163) is provided between the intermittent abutment block (162) and the auxiliary support block (101). During the stroke of the trigger rod (152) driving the auxiliary support block (101) to slide away from the workpiece (4), the linkage (18) drives the sliding support plate (161) to slide closer to the workpiece (4), so that multiple intermittent abutment blocks (162) fix the workpiece (4).

9. The high-efficiency shaft machining device according to claim 4, characterized in that: The bottom of the sliding plate (122) is fixedly connected to an extension column (127). The workpiece (4) drives the sliding plate (122) to slide inside the heating box (2) through the extension column (127). An elastic buffer part (13) is installed at the bottom of the extension column (127).

10. The high-efficiency shaft machining device according to claim 6, characterized in that: The connector includes a shaft rotatably connected to a fixed rod (145), a rotating block (143) rotatably connected to the fixed rod (145) via the shaft, and a torsion spring is provided between the shaft and the fixed rod (145).

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