A hot pressing forming device for bolt processing

Abstract

The present application discloses a hot press forming device for bolt processing, which relates to the field of metal forging technology. The device comprises a processing table, an inner cavity of the processing table is provided with a forming assembly, a hydraulic cylinder is fixedly installed on the top bottom wall of the processing table, and a second piston rod is slidably connected to the inner cavity of the hydraulic cylinder. The present invention can produce bolts of different lengths according to demand through the forming assembly, and the workpiece can be ejected by a demoulding mechanism with flexible force after hot forging, so as to prevent the demoulding mechanism with too strong rigidity from ejecting or manually pulling out and damaging the workpiece or the mold. Water can be automatically sprayed for cooling during demoulding, which is also helpful for demoulding, improving production efficiency and preventing workers from being scalded when taking out the workpiece. The positioning assembly can detect whether the pressing mold has position deviation, and when the pressing mold has position deviation, an alarm can be issued in time to remind the workers to perform maintenance. The device can also detect whether the pressing mold is tilted, so as to ensure uniform force during hot pressing and avoid mass production of unqualified bolts.

Description

Technical Field

[0001] The present application relates to the technical field of metal forging, and in particular to a hot pressing forming device for bolt processing. Background Art

[0002] In the machinery manufacturing industry, bolts are widely used as connectors, and their quality directly affects the overall performance and safety of the equipment. With the acceleration of industrialization, the demand for bolts has increased dramatically, and at the same time, higher requirements have been placed on the processing accuracy, efficiency and cost control of bolts. As an advanced plastic processing method, hot pressing technology has shown unique advantages in the field of metal forming. Its basic principle is to heat the material to a certain temperature to soften it and have good plasticity, and then use molds and pressure equipment to process the material into the desired shape. Compared with cold processing, hot pressing technology has the advantages of high processing accuracy, high material utilization rate, and low processing stress. It is especially suitable for processing parts with high dimensional accuracy requirements.

[0003] The existing technology still has the following problems:

[0004] 1. The existing hot pressing forming device for bolt processing cannot press workpieces of different lengths. Different molds are required for hot forging when producing bolts of different lengths. After the workpiece is hot forged, due to the close fit between the mold and the workpiece and the possible friction, the workpiece may be deformed, cracked or scratched when it is ejected or manually pulled out using a demolding mechanism that is too rigid. This damage may affect the dimensional accuracy, appearance quality and performance of the workpiece, and the mold may be subjected to uneven force, causing deformation and wear of the mold cavity, core or other parts. At the same time, the hot-pressed bolts are easy to cause burns to the staff when they are taken out. There is a lack of corresponding cooling mechanism, and waiting for the bolts to cool before taking them out affects production efficiency.

[0005] 2. The existing hot press forming device for bolt processing is prone to tilting of the pressing die after long-term use. The tilt of the pressing die will cause the contact surface between the die and the workpiece to be non-parallel, which will cause the product to be subjected to uneven pressure distribution during the forming process. This uneven pressure distribution will cause errors in product size and affect the overall quality and appearance of the product. At the same time, it is difficult to detect the bending of the pressing die in time, resulting in batches of inferior products. Summary of the invention

[0006] In order to overcome the inability to press workpieces of different lengths, when a demolding mechanism with too strong rigidity is used for ejection or manual extraction, the workpiece may be deformed, cracked or scratched on the surface. At the same time, the hot-pressed bolts are easy to cause burns to the staff when they are taken out. The tilt of the pressing mold will cause the contact surface between the mold and the workpiece to be non-parallel, which will cause the product to be subjected to uneven pressure distribution during the molding process. This uneven pressure distribution will cause errors in product size and affect the overall quality and appearance of the product. The purpose of the present invention is to provide a hot-pressing forming device for bolt processing to solve the above-mentioned shortcomings.

[0007] The present application provides a hot pressing forming device for bolt processing, comprising a processing table, an inner cavity of the processing table is provided with a forming assembly, a hydraulic cylinder is fixedly installed on the top bottom wall of the processing table, the inner cavity of the hydraulic cylinder is slidably connected with a second piston rod, the outer surface of the second piston rod is provided with a positioning assembly, the bottom end of the second piston rod is fixedly installed with a pressing mold, the forming assembly comprises a forming table, the outer surface of the forming table is provided with a membrane cavity, the inner cavity of the membrane cavity is provided with a lifting mechanism, the bottom end of the forming table is provided with an adjusting mechanism, there are four membrane cavities, lifting mechanisms and adjusting mechanisms, and they are evenly distributed on the forming table, a demolding mechanism is fixedly installed in the inner cavity of the processing table, the demolding mechanism is close to the edge of the processing table, a cooling mechanism is provided on the upper surface of the processing table, a rotating rod is fixedly installed in the middle position of the bottom of the forming table, a belt is sleeved on the outer surface of the rotating rod, a stepping motor is provided in the inner cavity of the processing table, and the output end of the stepping motor is sleeved with the belt.

[0008] Furthermore, the lifting mechanism includes a support plate, a first fixed bar is fixedly installed on the bottom end of the support plate, the top bottom wall of the first fixed bar is rotatably connected to the first threaded rod, the inner cavity of the first fixed bar is slidably connected to the telescopic bar, the first threaded rod and the telescopic bar are threadedly connected, the bottom end of the telescopic bar is fixedly installed with a connecting seat, the inner cavity of the connecting seat is rotatably connected to a rotating ring, and a lifting plate is fixedly installed on the outer surface of the connecting seat, the inner cavity of the support plate and the membrane cavity are tightly fitted, and the support plate and the membrane cavity are slidably connected.

[0009] Furthermore, the adjustment mechanism includes a fixed frame, which is fixedly connected to the forming table, and the inner cavity of the fixed frame is rotatably connected to a support bolt, the support bolt and the fixed frame are connected by threads, the top of the support bolt is in close contact with the support plate, the bottom end of the support bolt is sleeved with a first pointer, and the inner cavity of the fixed frame is slidably connected to a first slide rod, the first slide rod and the first pointer are sleeved, a scale is fixedly installed on the bottom end of the forming table, scale lines are set on the scale, the first pointer points to the scale, the first slide rod is slidably connected to the forming table, and the support bolt is located in the inner cavity of the membrane cavity.

[0010] Furthermore, the demolding mechanism includes a first fixed block, the first fixed block is fixedly connected to the inner wall of the processing table, a second sliding rod is fixedly installed on the upper surface of the first fixed block, the outer surface of the second sliding rod is slidably connected to the demolding frame, the inner cavity of the demolding frame is rotatably connected to the first adjusting bolt, the first adjusting bolt and the demolding frame are connected by threads, a first button is provided on the upper surface of the first fixed block, the first button is located directly below the first adjusting bolt, a first alarm is provided on the upper surface of the first fixed block, the first button is electrically connected to the first alarm, and pressing the first button controls the first alarm The device sounds an alarm, the inner cavity of the first fixed block is rotatably connected with the second threaded rod, the two ends of the first fixed block are slidably connected with the adjusting block, the upper surface of the adjusting block is an inclined surface, the adjusting block and the second threaded rod are threadedly connected, the directions of the threads at the two ends of the second threaded rod are opposite, the outer surface of the second slide rod is slidably connected with the adjusting plate, the outer surface of the second slide rod is sleeved with the first spring, the first spring is located between the adjusting plate and the demoulding frame, the two ends of the demoulding frame are flush, the middle is protruding upward, the bottom end of the rotating ring is flush with the two ends of the demoulding frame, and the rotating ring passes through the upper surface of the demoulding frame when the forming table rotates.

[0011] Furthermore, the cooling mechanism includes a water storage barrel, which is fixedly connected to the processing table, a connecting frame is fixedly connected to the bottom end of the water storage barrel, a baffle is slidably connected to the inner cavity of the connecting frame, a first elastic rod is fixedly installed on the bottom end of the baffle, a fixing ring is fixedly installed on the outer surface of the first elastic rod, a second spring is sleeved on the outer surface of the first elastic rod, a first rack is fixedly connected to the outer surface of the baffle, a gear is rotatably connected to the inner wall of the connecting frame, a water spraying barrel is fixedly connected to the end of the connecting frame away from the water storage barrel, a water spraying hole is opened at the bottom end of the water spraying barrel, a first piston rod is slidably connected to the inner cavity of the water spraying barrel, a second rack is fixedly installed on the outer surface of the first piston rod, and a lifting rod is fixedly installed on the bottom end of the first elastic rod.

[0012] Furthermore, the water storage barrel and the water spray barrel are connected by a connecting frame and are separated by a baffle plate in the middle. The second spring is located between the fixed ring and the connecting frame, the first rack is meshed with the gear, the gear is meshed with the second rack, the second rack is slidably connected to the connecting frame, the first elastic rod is slidably connected to the processing table, and the lifting plate passes through the bottom of the lifting rod when the forming table rotates, and the lifting plate drives the lifting rod to move upward when the rotating ring passes through the demolding frame, and the water spray barrel is located directly above one of the membrane cavities when the mold is pressed down.

[0013] Furthermore, the positioning assembly includes a second fixed block, the second fixed block and the bottom end of the second piston rod are fixedly sleeved, a first limit rod is fixedly installed on the upper surface of the second fixed block, the first limit rod and the processing table are slidably connected, a positioning mechanism is arranged on the upper surface of the processing table, detection mechanisms are arranged on both sides of the second fixed block, a reset mechanism is arranged directly above the detection mechanism, and the reset mechanism is fixedly connected to the outer surface of the processing table.

[0014] Furthermore, the positioning mechanism includes a positioning frame, a positioning block is fixedly installed in the middle part of the positioning frame, and a third sliding rod is fixedly installed at both ends of the positioning frame, the positioning frame and the processing table are slidably connected, and connecting blocks are fixedly installed at both ends of the positioning frame, and the inner cavity of the connecting block is connected to the second adjusting bolt by threaded rotation, and the upper surface of the processing table is fixedly installed with a third fixing block, and the third fixing block and the third sliding rod are slidably connected. There are two third fixing blocks, and the distances between the two third fixing blocks and the two ends of the positioning frame are equal. A second button is provided on the outer surface of the third fixing block, and a second alarm is provided on the outer surface of the third fixing block. The second button and the second alarm are electrically connected, and pressing the second button controls the second alarm to sound an alarm, and the second adjusting bolt and the second button are aligned. A pressure block is fixedly installed on the lower surface of the second fixed block, and the middle of the positioning block is recessed. The positioning block is located directly below the pressure block, and when the pressing mold and the forming table are in contact, the pressure block is located in the middle part of the positioning block, and the outer surface of the third sliding rod is sleeved with a third spring, and the third spring is located between the positioning frame and the third fixed block.

[0015] Furthermore, the detection mechanism includes a balancing frame, which is fixedly connected to a second fixed block. A balancing groove is provided on the upper surface of the balancing frame, and the balancing grooves are symmetrically distributed about the middle part of the balancing frame. A floating block is slidably connected to the inner cavity of the balancing groove, and rolling rods are rotatably connected to both sides of the bottom end of the floating block. The rolling rods are in contact with the inner wall of the balancing groove, a gravity ball is suspended in the middle position of the bottom of the floating block, and a second pointer is fixedly installed on the outer surface of the floating block.

[0016] Furthermore, the reset mechanism includes a second fixed bar, the inner cavity of the second fixed bar is slidably connected with a second elastic rod, the bottom end of the second elastic rod is fixedly connected with a reset block, the upper surface of the reset block is fixedly installed with a second limiting rod, the outer surface of the second elastic rod is sleeved with a fourth spring, the second limiting rod and the second fixed bar are slidably connected, the fourth spring is located between the second fixed bar and the reset block, the second fixed bar is fixedly connected to the processing table, and the reset block is located directly above the floating block.

[0017] The technical solution provided by this application has at least the following technical effects or advantages:

[0018] 1. The use of a forming assembly effectively solves the problem that the existing hot press forming device for bolt processing cannot press workpieces of different lengths. When producing bolts of different lengths, different molds need to be equipped for hot forging. After the workpiece is hot forged, due to the close fit between the mold and the workpiece and the possible friction, the workpiece may be deformed, cracked or scratched on the surface when it is ejected or manually pulled out by a demolding mechanism with too strong rigidity. This damage may affect the dimensional accuracy, appearance quality and performance of the workpiece, and the mold may be subjected to uneven force, resulting in deformation and wear of the mold cavity, core or other parts of the mold. At the same time, the hot-pressed bolts are easy to cause burns to the staff when they are taken out. There is a lack of a corresponding cooling mechanism. Waiting for the bolts to cool before taking them out affects the production efficiency. The present invention can produce bolts of different lengths according to demand through a forming assembly, and after the workpiece is hot forged, it can be ejected by a demolding mechanism with flexible force to prevent the demolding mechanism with too strong rigidity from ejecting or manually pulling out to damage the workpiece or the mold. When demolding, it can automatically spray water for cooling, which is also helpful for demolding, improving production efficiency and preventing scalding of the staff when taking out the workpiece.

[0019] 2. The use of the positioning component effectively solves the problem that the pressing die of the existing hot pressing forming device for bolt processing is prone to tilting when used for a long time. The tilting of the pressing die will cause the contact surface between the die and the workpiece to be non-parallel, which will cause the product to be subjected to uneven pressure distribution during the forming process. This uneven pressure distribution will cause errors in product size, affecting the overall quality and appearance of the product. At the same time, it is difficult to detect in time when the pressing die is bent, resulting in batch production of inferior products. The present invention can detect whether the pressing die has position deviation through the positioning component, and can promptly issue an alarm when the pressing die is offset to remind the staff to perform maintenance. It can also detect whether the pressing die is tilted to ensure uniform force during hot pressing and avoid batch production of unqualified bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0021] Figure 2 This is a schematic diagram of the structure of the hydraulic cylinder in Example 1 of the present application;

[0022] Figure 3 This is a schematic diagram of the structure of the molding assembly in Example 1 of the present application;

[0023] Figure 4 This is a schematic diagram of the membrane cavity structure in Example 1 of the present application;

[0024] Figure 5 This is a schematic cross-sectional view of the forming table structure in the first embodiment of the present application;

[0025] Figure 6 This is a schematic diagram of the structure of the adjustment mechanism in Example 1 of the present application;

[0026] Figure 7 This is a schematic diagram of the lifting mechanism structure in Example 1 of the present application;

[0027] Figure 8 This is a schematic diagram of the demoulding mechanism structure in Example 1 of the present application;

[0028] Fig. 9 This is a schematic cross-sectional view of the cooling mechanism structure in Example 1 of the present application;

[0029] Fig.10 For Example 1 of this application Fig. 9 A schematic diagram of the structure enlargement at the center A;

[0030] Fig.11 This is a schematic diagram of the structure of the positioning component in the second embodiment of the present application;

[0031] Fig.12 This is a schematic diagram of the positioning mechanism structure in Example 2 of the present application;

[0032] Fig.13 This is a schematic diagram of the structure of the detection mechanism in Example 2 of the present application;

[0033] Fig.14 It is a schematic cross-sectional view of the balance frame structure in the second embodiment of the present application.

[0034] In the figure: 1, processing table; 2, molding assembly; 21, molding table; 22, membrane cavity; 23, lifting mechanism; 231, support plate; 232, first fixing bar; 233, first threaded rod; 234, telescopic bar; 235, connecting seat; 236, rotating ring; 237, lifting plate; 24, adjusting mechanism; 241, fixing frame; 242, supporting bolt; 243, first pointer; 244, first sliding rod; 245, scale; 25, demoulding mechanism; 251, first fixed block; 252, second slide bar; 253, demoulding frame; 254, first adjustment bolt; 255, first button; 256, first alarm; 257, second threaded rod; 258, adjustment block; 259, adjustment plate; 2510, first spring; 26, cooling mechanism; 261, water storage barrel; 262, connecting frame; 263, shielding plate; 264, first elastic rod; 265, fixed ring; 266, second spring; 267, first rack; 268, gear; 2 69, water spray gun; 2610, water spray hole; 2611, first piston rod; 2612, second rack; 2613, lifting rod; 27, rotating rod; 28, belt; 29, stepping motor; 3, hydraulic cylinder; 4, second piston rod; 5, positioning assembly; 51, second fixing block; 52, first limiting rod; 53, positioning mechanism; 531, positioning frame; 532, positioning block; 533, third sliding rod; 534, connecting block; 535, second adjusting bolt; 536, The third fixed block; 537, the second button; 538, the second alarm; 539, the pressure block; 5310, the third spring; 54, the detection mechanism; 541, the balance frame; 542, the balance slot; 543, the floating block; 544, the rolling rod; 545, the gravity ball; 546, the second pointer; 55, the reset mechanism; 551, the second fixed bar; 552, the second elastic rod; 553, the reset block; 554, the second limit rod; 555, the fourth spring; 6, the pressing mold. DETAILED DESCRIPTION

[0035] When producing bolts of different lengths, different dies are required for hot forging. After the workpiece is shaped by hot forging, due to the close fit between the die and the workpiece and the possible friction, the present invention can produce bolts of different lengths according to demand through the forming component, and the workpiece can be flexibly ejected through the demolding mechanism after hot forging. The pressing die is prone to tilt under long-term use, and the tilt of the pressing die will cause the contact surface between the die and the workpiece to be non-parallel. The present invention can detect whether the pressing die has position deviation through the positioning component, and can promptly issue an alarm when the pressing die is offset to remind the staff to perform maintenance. It can also detect whether the pressing die is tilted to ensure uniform force during hot pressing.

[0036] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] Example 1: Please refer to Figure 1 As shown, a hot pressing forming device for bolt processing comprises a processing table 1, the inner cavity of the processing table 1 is provided with a forming component 2, a hydraulic cylinder 3 is fixedly installed on the top bottom wall of the processing table 1, the inner cavity of the hydraulic cylinder 3 is slidably connected with a second piston rod 4, the outer surface of the second piston rod 4 is provided with a positioning component 5, and a pressing die 6 is fixedly installed at the bottom end of the second piston rod 4. The hydraulic cylinder 3 drives the second piston rod 4 to move, so that the pressing die 6 and the forming component 2 perform hot pressing forming on the workpiece, wherein the forming component 2 can adjust the length of the hot pressing formed bolt, can realize automatic demoulding, and has a certain flexibility during demoulding, and can cool down during demoulding, and the positioning component 5 is used to check whether the pressing die 6 is vertical to the forming component 2 for hot pressing.

[0038] See also Figure 2 , Figure 3 and Figure 4 As shown, the molding assembly 2 includes a molding table 21, the outer surface of the molding table 21 is provided with a film cavity 22, the inner cavity of the film cavity 22 is provided with a lifting mechanism 23, the bottom end of the molding table 21 is provided with an adjusting mechanism 24, there are four film cavities 22, lifting mechanisms 23 and adjusting mechanisms 24, and they are evenly distributed on the molding table 21, the inner cavity of the processing table 1 is fixedly installed with a demoulding mechanism 25, the demoulding mechanism 25 is close to the edge of the processing table 1, the upper surface of the processing table 1 is provided with a cooling mechanism 26, a rotating rod 27 is fixedly installed at the middle position of the bottom of the molding table 21, the outer surface of the rotating rod 27 is sleeved with a belt 28, the inner cavity of the processing table 1 is provided with a stepping motor 29, the output end of the stepping motor 29 is sleeved with the belt 28, the demoulding mechanism 25 is located on the side of the film cavity 22 below the pressing mold 6, the operation of the stepping motor 29 drives the belt 28 to rotate, and the rotation of the belt 28 drives the rotating rod 27 Rotate, the rotating rod 27 rotates to drive the forming table 21 to rotate, and the stepping motor 29 rotates periodically to make the forming table 21 rotate ninety degrees each time, so that each time the membrane cavity 22 rotates, it is directly below the pressing mold 6. The lifting mechanism 23 is used to adjust the inner cavity depth of the membrane cavity 22, which is convenient for hot pressing bolts of different lengths according to needs. The adjusting mechanism 24 is used to support the lifting mechanism 23, and the depth of the lifting mechanism 23 in the inner cavity of the membrane cavity 22 can be calculated. When the lifting mechanism 23 passes through the demoulding mechanism 25, the demoulding mechanism 25 lifts the lifting mechanism 23 to demould the molded workpiece in the inner cavity of the membrane cavity 22, and the lifting has a certain flexibility. When the workpiece is tightly fitted in the inner cavity of the membrane cavity 22 and is difficult to demould, the demoulding mechanism 25 will issue an alarm, which is convenient for timely maintenance. When the lifting mechanism 23 is demoulded, it drives the cooling mechanism 26 to spray water to quickly cool the demoulded bolts, thereby improving production efficiency.

[0039] See also Figure 5 , Figure 6 and Figure 7 As shown, the lifting mechanism 23 includes a support plate 231, a first fixing bar 232 is fixedly installed at the bottom end of the support plate 231, a first threaded rod 233 is rotatably connected to the top bottom wall of the first fixing bar 232, a telescopic bar 234 is slidably connected to the inner cavity of the first fixing bar 232, the first threaded rod 233 and the telescopic bar 234 are threadedly connected, a connecting seat 235 is fixedly installed at the bottom end of the telescopic bar 234, a rotating ring 236 is rotatably connected to the inner cavity of the connecting seat 235, a lifting plate 237 is fixedly installed on the outer surface of the connecting seat 235, the inner cavity of the support plate 231 and the membrane cavity 22 are tightly fitted, and the support plate 231 and the membrane cavity 22 are slidably connected, and the adjusting mechanism 24 includes a fixing frame 241, a fixing frame 241 The fixing frame 241 is fixedly connected to the forming table 21, and the inner cavity of the fixing frame 241 is rotatably connected with a support bolt 242. The support bolt 242 and the fixing frame 241 are connected by threads. The top of the support bolt 242 is in close contact with the support plate 231. The bottom end of the support bolt 242 is sleeved with a first pointer 243. The inner cavity of the fixing frame 241 is slidably connected with a first slide bar 244. The first slide bar 244 and the first pointer 243 are sleeved. A scale 245 is fixedly installed at the bottom end of the forming table 21. The scale 245 is provided with scale lines. The first pointer 243 points to the scale 245. The first slide bar 244 is slidably connected to the forming table 21. The support bolt 242 is located in the inner cavity of the membrane cavity 22. When bolts of different lengths need to be produced, the first lengths can be adjusted. The position of the support plate 231 in the inner cavity of the membrane cavity 22 can be adjusted by rotating the support bolt 242 to change the position of the support bolt 242 in the inner cavity of the fixing frame 241. The lifting of the support bolt 242 drives the position of the support plate 231 in the inner cavity of the membrane cavity 22 to change. The actual function of the support bolt 242 is to change the height in the inner cavity of the fixing frame 241 to support the support plate 231. The movement of the support bolt 242 drives the position of the first pointer 243 on the scale 245 to change. The distance how much the support plate 231 is adjusted in the inner cavity of the membrane cavity 22 can be judged by observing how much the first pointer 243 moves on the scale 245. The first sliding rod 244 is used to limit the first pointer 243 so that the first The pointer 243 points to the scale 245 when it moves. When the first pointer 243 is actually in use and is on the lowest scale line of the scale 245, the bottom end of the support plate 231 is flush with the bottom end of the forming table 21. The height of the support plate 231 can be set according to actual needs, so as to facilitate the calculation of the depth of the membrane cavity 22. When the position of the support plate 231 changes, the telescopic bar 234 can be driven to slide in the inner cavity of the first fixed bar 232 by rotating the first threaded rod 233. At this time, the movement of the telescopic bar 234 drives the connecting seat 235 to move, and the movement of the connecting seat 235 drives the rotating ring 236 and the lifting plate 237 to move, so as to facilitate the adjustment of the bottom end of the rotating ring 236 and the two ends of the demolding frame 253 to be flush, so as to facilitate the subsequent demolding process.

[0040] See also Figure 5 , Figure 6 and Figure 8As shown, the demoulding mechanism 25 includes a first fixed block 251, which is fixedly connected to the inner wall of the processing table 1, a second slide bar 252 is fixedly installed on the upper surface of the first fixed block 251, and a demoulding frame 253 is slidably connected to the outer surface of the second slide bar 252, and the inner cavity of the demoulding frame 253 is rotatably connected to the first adjusting bolt 254, and the first adjusting bolt 254 and the demoulding frame 253 are connected by threads, and a first button 255 is provided on the upper surface of the first fixed block 251, and the first button 255 is located directly below the first adjusting bolt 254, and a first alarm 256 is provided on the upper surface of the first fixed block 251, and the first button 255 and the first alarm 256 are electrically connected, and pressing the first button 255 controls the first alarm 256 to sound. The alarm is sounded, the inner cavity of the first fixed block 251 is rotatably connected with the second threaded rod 257, and the two ends of the first fixed block 251 are slidably connected with the adjusting block 258. The upper surface of the adjusting block 258 is an inclined surface, and the end close to the adjusting plate 259 is a relatively low side. The adjusting block 258 and the second threaded rod 257 are connected by threads, and the directions of the threads at the two ends of the second threaded rod 257 are opposite. The outer surface of the second slide bar 252 is slidably connected with the adjusting plate 259, and the outer surface of the second slide bar 252 is sleeved with the first spring 2510. The first spring 2510 is located between the adjusting plate 259 and the demolding frame 253. The two ends of the demolding frame 253 are flush, and the middle protrudes upward. The bottom end of the rotating ring 236 is flush with the two ends of the demolding frame 253, and when the forming table 21 rotates The rotating ring 236 passes through the upper surface of the demolding frame 253. When the workpiece after hot pressing passes through the demolding mechanism 25, the bottom end of the rotating ring 236 passes through the demolding frame 253. When it reaches the middle protrusion of the demolding frame 253, the rotating ring 236 and the demolding frame 253 generate relative extrusion forces, so that the demolding frame 253 pushes up the rotating ring 236, thereby driving the support plate 231 to move upward, so that the support plate 231 pushes up the workpiece, making it easier to take the workpiece out of the inner cavity of the membrane cavity 22. When the workpiece and the inner cavity of the membrane cavity 22 are tightly fitted, it is difficult for the support plate 231 to push the workpiece out. At this time, the rotating ring 236 generates pressure on the demolding frame 253. At this time, the demolding frame 253 slides downward on the second slide bar 252, and the first spring 2510 is compressed by force so that the first adjusting bolt 2 54 squeezes the first button 255, thereby driving the first alarm 256 to sound an alarm, improving the manual intervention and subsequent maintenance of the workstation personnel, and adjusting the position of the first adjusting bolt 254 in the inner cavity of the demolding frame 253 by rotating the first adjusting bolt 254, so that the first adjusting bolt 254 will not contact the first button 255 under normal demolding. The demolding frame 253 has a certain flexibility to prevent the rigidity from being too strong to damage the workpiece and the inner cavity of the membrane cavity 22. The second threaded rod 257 is rotated to drive the adjusting block 258 to slide on the first fixed block 251, so that the adjusting block 258 lifts the adjusting plate 259. At this time, the adjusting plate 259 squeezes the first spring 2510. At this time, the elastic force of the first spring 2510 on the demolding frame 253 changes.It is convenient to adjust the movement of the first adjusting bolt 254 according to the needs, so that the first adjusting bolt 254 will not contact the first button 255 when the demoulding frame 253 is demoulded normally.

[0041] See also Figure 3 , Fig. 9 and Fig.10As shown, the cooling mechanism 26 includes a water storage barrel 261, the water storage barrel 261 and the processing table 1 are fixedly connected, the bottom end of the water storage barrel 261 is fixedly connected with a connecting frame 262, the inner cavity of the connecting frame 262 is slidably connected with a shielding plate 263, the bottom end of the shielding plate 263 is fixedly installed with a first elastic rod 264, the outer surface of the first elastic rod 264 is fixedly installed with a fixing ring 265, the outer surface of the first elastic rod 264 is sleeved with a second spring 266, the outer surface of the shielding plate 263 is fixedly connected with a first rack 267, the inner wall of the connecting frame 262 is rotatably connected with a gear 268, and the end of the connecting frame 262 away from the water storage barrel 261 is fixedly connected with a water spraying barrel 269, the bottom end of the water spraying barrel 269 is provided with a water spraying hole 2610, and the inner surface of the water spraying barrel 269 The cavity is slidably connected with a first piston rod 2611, a second rack 2612 is fixedly installed on the outer surface of the first piston rod 2611, a lifting rod 2613 is fixedly installed on the bottom end of the first elastic rod 264, the water storage barrel 261 and the water spraying tube 269 are connected through a connecting frame 262, and are separated by a shielding plate 263 in the middle, the second spring 266 is located between the fixed ring 265 and the connecting frame 262, the first rack 267 is meshed with the gear 268, the gear 268 is meshed with the second rack 2612, the second rack 2612 is slidably connected with the connecting frame 262, the first elastic rod 264 is slidably connected with the processing table 1, and when the forming table 21 rotates, the lifting plate 237 passes the bottom of the lifting rod 2613, and when the rotating ring 236 passes the demoulding frame 253, the lifting plate 237 drives the lifting rod 2613 to move upward, and when the pressing mold 6 is pressed downward, the water spray barrel 269 is located directly above one of the membrane cavities 22, that is, when the pressing mold 6 performs hot pressing on one of the workpieces, the water spray barrel 269 cools one of the hot-pressed workpieces, and when the demolding frame 253 drives the rotating ring 236, it drives the lifting plate 237 to rise, and the lifting plate 237 drives the lifting rod 2613 to rise, and the lifting rod 2613 rises and drives the first elastic rod 264 to rise. At this time, the fixing ring 265 squeezes the second spring 266 to compress the second spring 266, so that the shielding plate 263 slides upward in the inner cavity of the connecting frame 262, so that the water in the inner cavity of the water storage barrel 261 flows into the water spray barrel through the gap at the bottom end of the shielding plate 263 and the connecting frame 262. 269, and at the same time, the shielding plate 263 moves upward to drive the first rack 267 to move upward, and the movement of the first rack 267 drives the gear 268 to rotate, and the rotation of the gear 268 drives the second rack 2612 to move downward, and the second rack 2612 moves downward to drive the first piston rod 2611 to move downward, so that the first piston rod 2611 slides downward in the inner cavity of the water spray barrel 269, thereby compressing the water in the inner cavity of the water spray barrel 269, so that the water is sprayed from the water spray hole 2610 to the membrane cavity 22 for demolding, so as to facilitate the rapid cooling of the workpiece in the inner cavity of the membrane cavity 22 and improve the production efficiency. The water spray hole 2610 is used for spraying to facilitate the uniform spraying of water on the workpiece. After the rotating ring 236 passes the demolding frame 253, under the elastic force of the second spring 266,The fixed ring 265 moves downward and drives the shielding plate 263 to move downward. At this time, the shielding plate 263 blocks the water storage barrel 261 and the connecting frame 262 to prevent water from flowing out of the water storage barrel 261, so that a small amount of water can be sprayed on the workpiece each time it is cooled, which prevents waste and avoids water accumulation on the forming table 21, and also helps demolding. When the shielding plate 263 blocks the water storage barrel 261, it drives the first rack 267 to move downward, and the first rack 267 moves downward to drive the gear 268 to rotate, and the gear 268 rotates to drive the second rack 2612 to move upward, so that the first piston rod 2611 moves upward and resets, cools the demolded workpiece, improves production efficiency, and avoids scalding to the staff when taking out the workpiece.

[0042] Example 2: Please refer to Figure 1 and Fig.11 As shown, the positioning assembly 5 includes a second fixed block 51, the second fixed block 51 and the bottom end of the second piston rod 4 are fixedly sleeved, a first limiting rod 52 is fixedly installed on the upper surface of the second fixed block 51, the first limiting rod 52 is slidably connected to the processing table 1, a positioning mechanism 53 is arranged on the upper surface of the processing table 1, detection mechanisms 54 are arranged on both sides of the second fixed block 51, a reset mechanism 55 is arranged directly above the detection mechanism 54, the reset mechanism 55 is fixedly connected to the outer surface of the processing table 1, the first limiting rod 52 and the processing table 1 are slidably connected to limit the second fixed block 51, the positioning mechanism 53 is used to detect whether the second fixed block 51 is offset, the detection mechanism 54 is used to detect whether the second fixed block 51 remains horizontal, and the reset mechanism 55 is used to reset the detection mechanism 54.

[0043] See also Fig.11 and Fig.12As shown, the positioning mechanism 53 includes a positioning frame 531, a positioning block 532 is fixedly installed in the middle part of the positioning frame 531, and third slide bars 533 are fixedly installed at both ends of the positioning frame 531. The positioning frame 531 is slidably connected to the processing table 1, and connecting blocks 534 are fixedly installed at both ends of the positioning frame 531. The inner cavity of the connecting block 534 is rotatably connected to the second adjusting bolt 535 through a thread. A third fixed block 536 is fixedly installed on the upper surface of the processing table 1. The third fixed block 536 and the third slide bar 533 are slidably connected. There are two third fixed blocks 536, and the distance between the two third fixed blocks 536 and the two ends of the positioning frame 531 is The outer surface of the third fixed block 536 is provided with a second button 537, and the outer surface of the third fixed block 536 is provided with a second alarm 538. The second button 537 and the second alarm 538 are electrically connected. Pressing the second button 537 controls the second alarm 538 to sound an alarm. The second adjusting bolt 535 and the second button 537 are aligned. A pressure block 539 is fixedly installed on the lower surface of the second fixed block 51. The middle of the positioning block 532 is recessed. The positioning block 532 is located directly below the pressure block 539. When the pressing mold 6 contacts the forming table 21, the pressure block 539 is located in the middle of the positioning block 532. The outer surface of the slide bar 533 is sleeved with a third spring 5310, and the third spring 5310 is located between the positioning frame 531 and the third fixed block 536. When the second fixed block 51 moves downward, it drives the pressure block 539 to move downward. When the pressure block 539 moves downward, the bottom end is located at the middle depression of the positioning block 532. When the position of the second fixed block 51 is offset, the pressure block 539 and the side of the positioning block 532 contact. At this time, the positioning block 532 is subjected to pressure, so that the positioning block 532 drives the positioning frame 531 to move, so that the positioning frame 531 drives the third slide bar 533 to move in the inner cavity of the third fixed block 536, and the positioning frame 531 moves to one side of the third fixed block 536. When the second adjusting bolt 535 moves, the third spring 5310 on that side is squeezed, so that the second adjusting bolt 535 on the connecting block 534 and the second button 537 on the third fixing block 536 are squeezed, so that the second alarm 538 on the squeezed side sounds an alarm, reminding the staff that the position of the second fixing block 51 needs to be maintained, and the distance between the second adjusting bolt 535 and the second button 537 is controlled by rotating the position of the second adjusting bolt 535 in the inner cavity of the connecting block 534, so that the second adjusting bolt 535 can contact the second button 537 when the second fixing block 51 is slightly offset, thereby sounding an alarm in time.

[0044] See also Fig.11 , Fig.13 and Fig.14As shown, the detection mechanism 54 includes a balancing frame 541, which is fixedly connected to the second fixed block 51. A balancing groove 542 is provided on the upper surface of the balancing frame 541. The balancing groove 542 is symmetrically distributed about the middle part of the balancing frame 541. A floating block 543 is slidably connected to the inner cavity of the balancing groove 542. Rolling rods 544 are rotatably connected to both sides of the bottom end of the floating block 543. The rolling rods 544 are in contact with the inner wall of the balancing groove 542. A gravity ball 545 is suspended at the middle position of the bottom of the floating block 543. A second pointer 546 is fixedly installed on the outer surface of the floating block 543. The reset mechanism 55 includes a second fixing bar 551. The inner cavity of the second fixing bar 551 is slidably connected with the second elastic rod 552, the bottom end of the second elastic rod 552 is fixedly connected with the reset block 553, the upper surface of the reset block 553 is fixedly installed with the second limiting rod 554, the outer surface of the second elastic rod 552 is sleeved with the fourth spring 555, the second limiting rod 554 is slidably connected with the second fixing bar 551, the fourth spring 555 is located between the second fixing bar 551 and the reset block 553, the second fixing bar 551 is fixedly connected to the processing table 1, the reset block 553 is located just above the floating block 543, when the second fixing block 51 moves, it drives the balance frame 541 to move, when the second When the fixed block 51 is tilted, the balancing frame 541 is also tilted. At this time, the rolling rod 544 rolls in the inner cavity of the balancing groove 542, causing the position of the floating block 543 in the inner cavity of the balancing groove 542 to change, thereby changing the direction of the second pointer 546. At this time, it can be determined that the second fixed block 51 is tilted to prevent uneven force during hot pressing of the bolts. The gravity of the gravity ball 545 makes the floating block 543 always located in the middle of the inner cavity of the balancing groove 542. The reset mechanism 55 is used to reset the floating block 543. When vibration is generated during hot pressing, the floating block 543 may shake, and it is reset under the gravity of the gravity ball 545. The floating block 543 is then kept horizontal by the pressure of the reset block 553. When the second piston rod 4 is retracted, the upper surface of the floating block 543 contacts the lower surface of the reset block 553. At this time, the fourth spring 555 is compressed to make the second elastic rod 552 and the second limit rod 554 slide in the inner cavity of the second fixed strip 551, which has a reset effect on the floating block 543 and a buffer effect on the reset of the second piston rod 4, thereby increasing the service life of the equipment. The positioning of the positioning mechanism 53 and the detection of the reset mechanism 55 can avoid uneven force on the workpiece during hot pressing, prevent errors in product size, and thus ensure the overall quality and appearance of the product.

[0045] To summarize, the hydraulic cylinder 3 drives the second piston rod 4 to move, so that the pressing mold 6 and the forming component 2 perform hot pressing molding on the workpiece, wherein the forming component 2 can adjust the length of the hot pressing forming bolts, can realize automatic demolding, and has a certain flexibility during demolding, and can cool down during demolding. The positioning component 5 is used to check whether the pressing mold 6 is vertically pressed with the forming component 2 for hot pressing. The stepper motor 29 drives the forming table 21 to rotate. The stepper motor 29 rotates periodically to make the forming table 21 rotate ninety degrees each time, so that each time the membrane cavity 22 rotates, it is directly below the pressing mold 6. The lifting mechanism 23 is used to adjust the inner cavity depth of the membrane cavity 22, so as to facilitate hot pressing of bolts of different lengths according to needs. The adjusting mechanism 24 is used to support the lifting mechanism 23, and the lifting mechanism can be calculated. The demoulding mechanism 25 lifts up the lifting mechanism 23 to demould the molded workpiece in the inner cavity of the membrane cavity 22, and the lifting has a certain flexibility. When the workpiece is tightly fitted in the inner cavity of the membrane cavity 22 and is difficult to demould, the demoulding mechanism 25 will issue an alarm to facilitate timely maintenance. When the lifting mechanism 23 is demoulded, it drives the cooling mechanism 26 to spray water to quickly cool the demoulding bolts, thereby improving production efficiency. The first limit rod 52 and the processing table 1 are slidably connected to limit the second fixed block 51. The positioning mechanism 53 is used to detect whether the second fixed block 51 is offset. The detection mechanism 54 is used to detect whether the second fixed block 51 remains horizontal. The reset mechanism 55 is used to reset the detection mechanism 54.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0047] What has been described above is only a preferred specific implementation manner of the embodiments of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A hot press forming device for bolt processing, comprising a processing table (1), characterized in that: The inner cavity of the processing table (1) is provided with a molding component (2), the top bottom wall of the processing table (1) is fixedly mounted with a hydraulic cylinder (3), the inner cavity of the hydraulic cylinder (3) is slidably connected with a second piston rod (4), the outer surface of the second piston rod (4) is provided with a positioning component (5), and the bottom end of the second piston rod (4) is fixedly mounted with a pressing mold (6); The molding assembly (2) comprises a molding table (21), the outer surface of the molding table (21) is provided with a film cavity (22), the inner cavity of the film cavity (22) is provided with a lifting mechanism (23), the bottom end of the molding table (21) is provided with an adjusting mechanism (24), the film cavity (22), the lifting mechanism (23) and the adjusting mechanism (24) are each provided with four, and are evenly distributed on the molding table (21), the inner cavity of the processing table (1) is fixedly provided with a demoulding mechanism (25), the demoulding mechanism (25) is close to the edge of the processing table (1), the upper surface of the processing table (1) is provided with a cooling mechanism (26), a rotating rod (27) is fixedly provided at the middle position of the bottom of the molding table (21), the outer surface of the rotating rod (27) is sleeved with a belt (28), the inner cavity of the processing table (1) is provided with a stepping motor (29), and the output end of the stepping motor (29) is sleeved with the belt (28); The lifting mechanism (23) comprises a support plate (231), a first fixing bar (232) being fixedly mounted on the bottom end of the support plate (231), a first threaded rod (233) being rotatably connected to the top bottom wall of the first fixing bar (232), a telescopic bar (234) being slidably connected to the inner cavity of the first fixing bar (232), the first threaded rod (233) and the telescopic bar (234) being threadedly connected, a connecting seat (235) being fixedly mounted on the bottom end of the telescopic bar (234), a rotating ring (236) being rotatably connected to the inner cavity of the connecting seat (235), a lifting plate (237) being fixedly mounted on the outer surface of the connecting seat (235), the inner cavity of the support plate (231) and the membrane cavity (22) being tightly fitted, and the support plate (231) and the membrane cavity (22) being slidably connected; The cooling mechanism (26) comprises a water storage barrel (261), the water storage barrel (261) and the processing table (1) are fixedly connected, the bottom end of the water storage barrel (261) is fixedly connected to a connecting frame (262), the inner cavity of the connecting frame (262) is slidably connected to a shielding plate (263), the bottom end of the shielding plate (263) is fixedly mounted with a first elastic rod (264), the outer surface of the first elastic rod (264) is fixedly mounted with a fixing ring (265), the outer surface of the first elastic rod (264) is sleeved with a second spring (266), and the outer surface of the shielding plate (263) is fixedly mounted with a fixing ring (265). The connecting frame (262) is fixedly connected to a first rack (267); the inner wall of the connecting frame (262) is rotatably connected to a gear (268); the end of the connecting frame (262) away from the water storage barrel (261) is fixedly connected to a water spray barrel (269); the bottom end of the water spray barrel (269) is provided with a water spray hole (2610); the inner cavity of the water spray barrel (269) is slidably connected to a first piston rod (2611); the outer surface of the first piston rod (2611) is fixedly mounted with a second rack (2612); and the bottom end of the first elastic rod (264) is fixedly mounted with a lifting rod (2613); The water storage barrel (261) and the water spray barrel (269) are connected via a connecting frame (262) and separated by a shielding plate (263); the second spring (266) is located between the fixing ring (265) and the connecting frame (262); the first rack (267) and the gear (268) are meshed; the gear (268) and the second rack (2612) are meshed; the second rack (2612) and the connecting frame (262) are slidably connected; the first elastic rod (264) and the processing table (1) are slidably connected; when the molding table (21) rotates, the lifting plate (237) passes the bottom of the lifting rod (2613); and when the rotating ring (236) passes the demoulding frame (253), the lifting plate (237) drives the lifting rod (2613) to move upward; when the pressing mold (6) is pressed downward, the water spray barrel (269) is located directly above one of the membrane cavities (22).

2. A hot press forming device for bolt processing as claimed in claim 1, characterized in that: The adjustment mechanism (24) comprises a fixing frame (241), the fixing frame (241) is fixedly connected to the forming table (21), the inner cavity of the fixing frame (241) is rotatably connected to a support bolt (242), the support bolt (242) and the fixing frame (241) are connected by threads, the top end of the support bolt (242) is in close contact with the support plate (231), the bottom end of the support bolt (242) is sleeved with a first pointer (243), and the fixing frame (2 The inner cavity of the forming table (21) is slidably connected to a first slide bar (244), the first slide bar (244) and the first pointer (243) are sleeved, a scale (245) is fixedly installed on the bottom end of the forming table (21), scale lines are arranged on the scale (245), the first pointer (243) points to the scale (245), the first slide bar (244) and the forming table (21) are slidably connected, and the support bolt (242) is located in the inner cavity of the membrane cavity (22).

3. A hot press forming device for bolt processing as claimed in claim 2, characterized in that: The demoulding mechanism (25) comprises a first fixed block (251), the first fixed block (251) is fixedly connected to the inner wall of the processing table (1), a second sliding rod (252) is fixedly mounted on the upper surface of the first fixed block (251), the outer surface of the second sliding rod (252) is slidably connected to a demoulding frame (253), the inner cavity of the demoulding frame (253) is rotatably connected to a first adjusting bolt (254), the first adjusting bolt (254) and the demoulding frame (253) are connected by threads, a first button (255) is provided on the upper surface of the first fixed block (251), the first button (255) is located directly below the first adjusting bolt (254), a first alarm (256) is provided on the upper surface of the first fixed block (251), the first button (255) and the first alarm (256) are electrically connected, and pressing the first button (255) controls the first alarm (256). An alarm is sounded, the inner cavity of the first fixed block (251) is rotatably connected to a second threaded rod (257), the two ends of the first fixed block (251) are slidably connected to an adjustment block (258), the upper surface of the adjustment block (258) is an inclined surface, the adjustment block (258) and the second threaded rod (257) are threadedly connected, the threads at the two ends of the second threaded rod (257) are in opposite directions, the outer surface of the second slide bar (252) is slidably connected to an adjustment plate (259), the outer surface of the second slide bar (252) is sleeved with a first spring (2510), the first spring (2510) is located between the adjustment plate (259) and the demoulding frame (253), the two ends of the demoulding frame (253) are flush, and the middle is protruding upwards, the bottom end of the rotating ring (236) is flush with the two ends of the demoulding frame (253), and when the forming table (21) rotates, the rotating ring (236) passes through the upper surface of the demoulding frame (253).

4. A hot press forming device for bolt processing as claimed in claim 1, characterized in that: The positioning assembly (5) comprises a second fixed block (51), the second fixed block (51) and the bottom end of the second piston rod (4) are fixedly sleeved, a first limiting rod (52) is fixedly mounted on the upper surface of the second fixed block (51), the first limiting rod (52) and the processing table (1) are slidably connected, a positioning mechanism (53) is arranged on the upper surface of the processing table (1), detection mechanisms (54) are arranged on both sides of the second fixed block (51), a reset mechanism (55) is arranged directly above the detection mechanism (54), and the reset mechanism (55) is fixedly connected to the outer surface of the processing table (1).

5. A hot press forming device for bolt processing as claimed in claim 4, characterized in that: The positioning mechanism (53) comprises a positioning frame (531), a positioning block (532) is fixedly installed in the middle part of the positioning frame (531), a third sliding rod (533) is fixedly installed at both ends of the positioning frame (531), the positioning frame (531) and the processing table (1) are slidably connected, connecting blocks (534) are fixedly installed at both ends of the positioning frame (531), the inner cavity of the connecting block (534) is rotatably connected to a second adjusting bolt (535) through a thread, a third fixing block (536) is fixedly installed on the upper surface of the processing table (1), the third fixing block (536) and the third sliding rod (533) are slidably connected, there are two third fixing blocks (536), and the distances between the two third fixing blocks (536) and the two ends of the positioning frame (531) are equal, and the outer surface of the third fixing block (536) is provided with a second button (537), The outer surface of the third fixed block (536) is provided with a second alarm (538); the second button (537) is electrically connected to the second alarm (538); pressing the second button (537) controls the second alarm (538) to sound an alarm; the second adjustment bolt (535) is aligned with the second button (537); a pressure block (539) is fixedly mounted on the lower surface of the second fixed block (51); the middle of the positioning block (532) is recessed; the positioning block (532) is located directly below the pressure block (539); and when the pressing mold (6) and the forming table (21) are in contact, the pressure block (539) is located in the middle of the positioning block (532); the outer surface of the third sliding rod (533) is sleeved with a third spring (5310); the third spring (5310) is located between the positioning frame (531) and the third fixed block (536).

6. A hot press forming device for bolt processing as claimed in claim 5, characterized in that: The detection mechanism (54) comprises a balancing frame (541), wherein the balancing frame (541) is fixedly connected to a second fixed block (51), a balancing groove (542) is provided on the upper surface of the balancing frame (541), and the balancing grooves (542) are symmetrically distributed about the middle part of the balancing frame (541), a floating block (543) is slidably connected to the inner cavity of the balancing groove (542), rolling rods (544) are rotatably connected to both sides of the bottom end of the floating block (543), and the rolling rods (544) are in contact with the inner wall of the balancing groove (542), a gravity ball (545) is suspended at the middle position of the bottom of the floating block (543), and a second pointer (546) is fixedly installed on the outer surface of the floating block (543).

7. A hot press forming device for bolt processing as claimed in claim 6, characterized in that: The reset mechanism (55) comprises a second fixing bar (551), the inner cavity of the second fixing bar (551) is slidably connected to a second elastic rod (552), the bottom end of the second elastic rod (552) is fixedly connected to a reset block (553), the upper surface of the reset block (553) is fixedly mounted with a second limiting rod (554), the outer surface of the second elastic rod (552) is sleeved with a fourth spring (555), the second limiting rod (554) and the second fixing bar (551) are slidably connected, the fourth spring (555) is located between the second fixing bar (551) and the reset block (553), the second fixing bar (551) is fixedly connected to the processing table (1), and the reset block (553) is located directly above the floating block (543).

Images