阅读说明：本技术 一种压力机运动副温度监测装置 (Temperature monitoring device for press kinematic pair ) 是由 仲君 仲太生 黄建民 钱琦 王路远 孙凌宇 张建华 于 2020-05-27 设计创作，主要内容包括：本发明公开了压力机领域内的一种压力机运动副温度监测装置,包括机身,机身上设置有可上下滑动的滑块,机身上对应滑块的四个棱角竖直设置有四组导向组件,每组导向组件上均设置有至少一个温度传感器一,曲轴的前轴承座上设置有温度传感器二,后轴承座上设置有温度传感器三,曲轴的连杆上设置有温度传感器四；曲轴后端的大齿轮与齿轮轴上的小齿轮啮合,齿轮轴上的飞轮设置有至少两个温度传感器五。本发明能够对压力机的运动副温度进行检测,对温度过高的运动副进行高温预警。(The invention discloses a temperature monitoring device for a press kinematic pair in the field of presses, which comprises a press body, wherein a slide block capable of sliding up and down is arranged on the press body, four groups of guide assemblies are vertically arranged on the press body corresponding to four edges and corners of the slide block, each group of guide assemblies is provided with at least one temperature sensor I, a front bearing seat of a crankshaft is provided with a temperature sensor II, a rear bearing seat is provided with a temperature sensor III, and a connecting rod of the crankshaft is provided with a temperature sensor IV; a large gear at the rear end of the crankshaft is meshed with a small gear on the gear shaft, and a flywheel on the gear shaft is provided with at least two temperature sensors. The invention can detect the temperature of the kinematic pair of the press and carry out high-temperature early warning on the kinematic pair with overhigh temperature.)

1. A temperature monitoring device for a press kinematic pair comprises a machine body and is characterized in that a sliding block capable of sliding up and down is arranged on the machine body, the section of the sliding block is rectangular, four groups of guide assemblies are vertically arranged on the machine body corresponding to four edges of the sliding block, each guide assembly is arranged corresponding to each corner of the sliding block one by one, each guide assembly comprises a first guide rail and a second guide rail which are perpendicular to each other, the first guide rail and the second guide rail are respectively arranged corresponding to two adjacent planes of the corresponding edges of the sliding block, each group of guide assemblies is provided with at least one first temperature sensor, two crankshafts which are parallel to each other are rotatably arranged on the machine body corresponding to the sliding block, a crankshaft line is longitudinally arranged, a front bearing seat and a rear bearing seat are respectively arranged on the machine body corresponding to front and rear main journals of each crankshaft, the front and rear main journals of each crankshaft are respectively connected, a second temperature sensor is arranged on the front bearing seat, a third temperature sensor is arranged on the rear bearing seat, a connecting rod is hinged to a connecting rod journal of the crankshaft, the lower end of the connecting rod is hinged to the sliding block, and a fourth temperature sensor is arranged on the connecting rod; every the rear end of bent axle all overlaps and is equipped with the gear wheel, and two gear wheel intermeshing are connected, correspond the gear wheel on the fuselage and rotationally be provided with the gear shaft, and the gear shaft parallels with the bent axle, and the pot head that the gear shaft is located the fuselage is equipped with the pinion, and the pinion meshes with corresponding gear wheel mutually and is connected, the gear shaft is located the axle body outside the fuselage and is provided with the flywheel of being connected with the transmission of rotary driving mechanism, is provided with two at least temperature sensor five on the flywheel, and each temperature sensor all is connected with PLC temperature detection system electricity.

2. The temperature monitoring device for the press kinematic pair of claim 1, wherein the first guide rail of the guide assembly on the front side is an integral guide rail plate, the second guide rail of the guide assembly on the front side comprises two split guide rail plates correspondingly arranged up and down, the first guide rail and the second guide rail of the guide assembly on the rear side both comprise two split guide rail plates correspondingly arranged up and down, the integral guide rail plate and the split guide rail plates are provided with lubricating oil channels respectively in contact with the slide block, each lubricating oil channel comprises a plurality of horizontal oil channels which are sequentially arranged at equal intervals from top to bottom, a connecting oil channel is obliquely arranged between any two adjacent horizontal oil channels, and each guide assembly is fixedly mounted on the machine body through a corresponding guide rail mounting plate.

3. The temperature monitoring device for the press kinematic pair according to claim 2, wherein the first temperature sensor is a screw thread installation type platinum thermal resistor, the depth of the screw thread installation type thermal resistor inserted into the first guide rail or the second guide rail from the side is 0.3-0.5 of the width of the corresponding guide rail, the first temperature sensor is installed on the two guide rails positioned on the front side of the slide block, the two guide rails positioned on the rear side of the slide block and the two guide rails positioned on the rear side of the right side of the slide block, and the first temperature sensor is connected with the temperature input module of the PLC in a wired transmission mode.

4. A temperature monitoring device for a press kinematic pair according to any of claims 1 to 3, it is characterized in that the second temperature sensor, the third temperature sensor and the fourth temperature sensor are all end-face platinum thermal resistors, the second temperature sensor is vertically arranged at the lower part of the front bearing seat and is contacted with a bearing in the front bearing seat, the rear bearing seat is integrally arranged on the machine body, the third temperature sensor is vertically arranged at the upper part of the rear bearing seat and is contacted with the bearing in the rear bearing seat, the connecting rod comprises a connecting rod cover positioned above the crankshaft connecting rod journal and a connecting rod body positioned below the crankshaft connecting rod journal, an upper bearing bush and a lower bearing bush are sleeved on the periphery of the crankshaft connecting rod journal, a temperature sensor IV is vertically arranged on the upper portion of the connecting rod cover and is in contact with the upper bearing bush, and the end-face type platinum thermistor is connected with a temperature input module of the PLC in a three-wire system or four-wire system wired transmission mode.

5. The temperature monitoring device for the kinematic pair of the press machine as claimed in claim 4, wherein the lower portion of the connecting rod body is provided with a mounting groove along an axial direction, a threaded sleeve is arranged in the mounting groove, a first annular flange is arranged on the periphery of the lower end of the threaded sleeve, the first flange is fixedly connected with the lower end face of the connecting rod body through a plurality of fasteners uniformly arranged along the circumferential direction at intervals, internal threads are arranged on the inner periphery of the threaded sleeve, the threaded sleeve is connected with a ball screw through the internal threads, a protective sleeve is arranged on the periphery of the ball screw, a second annular flange is integrally arranged on the periphery of the protective sleeve, and the second flange is fixedly connected with the first flange through a; two supports are arranged on the upper portion of the sliding block, ball head seats are arranged in the supports, and ball heads of the ball head screws are hinged with the ball head seats in the corresponding supports.

6. The temperature monitoring device for the press kinematic pair according to any one of claims 1 to 3, wherein an unloading sleeve is sleeved on the gear shaft, an unloading sleeve bearing is arranged between the inner wall of a sleeve hole of the unloading sleeve and the outer periphery of the gear shaft, the flywheel is sleeved on the unloading sleeve through a central hole, a flywheel bearing is arranged between the inner wall of the central hole of the flywheel and the outer wall of the unloading sleeve, the temperature sensor five is an end-face type platinum thermistor, two temperature sensors five which are correspondingly distributed one above the other are arranged on the flywheel, the two temperature sensors five are respectively close to the front end and the rear end of the flywheel, the two temperature sensors five are obliquely embedded into the flywheel and are in contact with the flywheel bearing, the temperature sensor five which is in contact with the unloading sleeve bearing is also obliquely embedded into the unloading sleeve, and two temperature collectors which are correspondingly arranged one above the other are, each temperature collector is connected with a corresponding temperature sensor five on the flywheel through a three-wire connection method, the temperature collectors are wirelessly connected with a signal concentrator, and the signal concentrator is connected with a temperature input module of the PLC.

7. The temperature monitoring device for the press kinematic pair according to claim 6, wherein the trepanning of the unloading sleeve comprises a large-diameter section and a small-diameter section, a bearing of the unloading sleeve is located in the large-diameter section of the trepanning, the gear shaft is matched with the small-diameter section of the trepanning, a plurality of connecting plates are evenly distributed on the periphery of the unloading sleeve at intervals along the circumferential direction, annular flywheel glands sleeved on the unloading sleeve are arranged at the left end and the right end of a central hole of the flywheel, the temperature collector located at the upper side is correspondingly connected with the temperature sensor five at the upper side of the flywheel, and the temperature collector located at the lower side is correspondingly connected with the temperature sensor five at.

8. The temperature monitoring device for the press kinematic pair according to any one of claims 1 to 3, wherein the machine body comprises a left vertical seat and a right vertical seat, a front support plate, a rear support plate and a rear baffle plate are sequentially and transversely arranged between the left vertical seat and the right vertical seat from front to back at intervals, the front support plate, the rear support plate and the rear baffle plate are vertically arranged, the front support plate is lower than the rear support plate, the front bearing seat is arranged on the front support plate, the rear bearing seat is integrally arranged on the rear support plate, a connecting rod is positioned between the front support plate and the rear support plate, the rear end of the crankshaft extends to the other side of the rear support plate, the bull gear is positioned between the rear support plate and the rear baffle plate, two sets of bilaterally symmetrical mounting assemblies are arranged between the front support plate and the rear support plate, each set of mounting assemblies comprises two longitudinal base plates which are parallel to each other, the vertical balance cylinder that is provided with on the cylinder mounting panel, the left and right sides at slider top all are provided with the U-shaped connecting seat, and two balance cylinder set up with two connecting seat one-to-one, and balance cylinder's piston rod stretches out the end and articulates with corresponding connecting seat mutually.

Technical Field

The invention belongs to the field of presses, and particularly relates to a temperature monitoring device for a press kinematic pair.

Background

Disclosure of Invention

The invention aims to provide a temperature monitoring device for a press kinematic pair, which can detect the temperature of each kinematic pair of a press, avoid the overhigh temperature rise of the kinematic pair, establish a high-efficiency and reliable temperature measurement system and perform high-temperature early warning on the kinematic pair with overhigh temperature.

The purpose of the invention is realized as follows: a temperature monitoring device for a press kinematic pair comprises a press body, wherein a slide block capable of sliding up and down is arranged on the press body, the section of the slide block is rectangular, four groups of guide assemblies are vertically arranged on the press body corresponding to four edges of the slide block, each guide assembly is arranged corresponding to each corner of the slide block one by one, each guide assembly comprises a guide rail I and a guide rail II which are perpendicular to each other, the guide rail I and the guide rail II are respectively arranged corresponding to two adjacent planes of the corresponding edges of the slide block, each group of guide assemblies is provided with at least one temperature sensor I, the upper part of the press body is rotatably provided with two mutually parallel crankshafts corresponding to the slide block, the crankshaft lines are longitudinally arranged, a front bearing seat and a rear bearing seat are respectively arranged on the press body corresponding to front and rear main journals of each crankshaft, the front and rear main journals of each crankshaft are, a second temperature sensor is arranged on the front bearing seat, a third temperature sensor is arranged on the rear bearing seat, a connecting rod is hinged to a connecting rod journal of the crankshaft, the lower end of the connecting rod is hinged to the sliding block, and a fourth temperature sensor is arranged on the connecting rod; every the rear end of bent axle all overlaps and is equipped with the gear wheel, and two gear wheel intermeshing are connected, correspond the gear wheel on the fuselage and rotationally be provided with the gear shaft, and the gear shaft parallels with the bent axle, and the pot head that the gear shaft is located the fuselage is equipped with the pinion, and the pinion meshes with corresponding gear wheel mutually and is connected, the gear shaft is located the axle body outside the fuselage and is provided with the flywheel of being connected with the transmission of rotary driving mechanism, is provided with two at least temperature sensor five on the flywheel, and each temperature sensor all is connected with PLC temperature detection system electricity.

When the stamping machine works, the rotary driving mechanism is a motor, a belt pulley on the motor drives a flywheel to rotate through a transmission belt, the flywheel drives a pinion on a gear shaft to rotate, the pinion drives a gearwheel to rotate, the two gearwheels are meshed with each other, the two crankshafts rotate simultaneously, the crankshafts drive connecting rods to swing, the two connecting rods drive sliding blocks to move up and down, and an upper die on the sliding blocks is matched with a lower die of the machine body to complete stamping. Compared with the prior art, the invention has the beneficial effects that: the temperature sensors monitor the temperature of the guide assemblies at the four corners of the sliding block; and a second temperature sensor, a third temperature sensor and a fourth temperature sensor are used for monitoring the temperature of bearings on the front main journal and the rear main journal of the crankshaft and the temperature of bearing bushes on the connecting rod journals of the crankshaft respectively, and a fifth temperature sensor is used for detecting the temperature of flywheel bearings. The temperature rise measuring device can measure the temperature rise of the guide rail kinematic pair, the crankshaft connecting rod kinematic pair and the flywheel kinematic pair of the press machine, each temperature sensor transmits a temperature signal to the PLC temperature detection system, the display and early warning are carried out on the kinematic pair at the position with the overhigh temperature, the staff is reminded on the operation panel, and the problem that the service life of the press machine is influenced by the overhigh temperature of the kinematic pair of the press machine is avoided.

As a further improvement of the invention, the first guide rail of the guide assembly positioned on the front side is an integral guide rail plate, the second guide rail of the guide assembly positioned on the front side comprises two split guide rail plates which are correspondingly arranged up and down, the first guide rail and the second guide rail of the guide assembly positioned on the rear side both comprise two split guide rail plates which are correspondingly arranged up and down, lubricating oil channels are respectively arranged on the integral guide rail plate and the split guide rail plates on the surfaces contacting with the sliding block, each lubricating oil channel comprises a plurality of horizontal oil channels which are sequentially arranged at equal intervals from top to bottom, a connecting oil channel is obliquely arranged between any two adjacent horizontal oil channels up and down, and each guide assembly is fixedly installed on the machine body through a corresponding guide rail installation plate. Lubricating oil in the lubricating oil channel lubricates the lifting motion of the sliding block between the guide assemblies, and the lubricating oil flows along each horizontal oil channel and each connecting oil channel in sequence and can be fully contacted with the guide rail and the sliding block.

As a further improvement of the invention, the first temperature sensor is a screw thread installation type platinum thermal resistor, the depth of the screw thread installation type thermal resistor inserted into the first guide rail or the second guide rail from the side surface is 0.3-0.5 of the width of the corresponding guide rail, the first temperature sensor is installed on the two guide rails positioned on the front side of the sliding block, the two guide rails positioned on the rear side of the sliding block and the two guide rails positioned on the rear part of the right side of the sliding block, and the first temperature sensor is connected with a temperature input module of the PLC in a wired transmission mode. Selecting 6 guide rails to install a first contact type temperature sensor to construct a temperature field of the guide assembly, wherein the first temperature sensor is a screw thread installation type platinum thermal resistor, and combining a pressing device such as a movable clamping sleeve or a spring washer and the like to tightly attach the first temperature sensor to the inside of the guide rails, so that the central temperature of the guide rails is detected, and the measured temperature is accurate.

As a further improvement of the invention, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are all end face type platinum thermal resistors, the second temperature sensor is vertically arranged at the lower part of the front bearing seat, the second temperature sensor is in contact with a bearing in the front bearing seat, the rear bearing seat is integrally arranged on the machine body, the third temperature sensor is vertically arranged at the upper part of the rear bearing seat, the third temperature sensor is in contact with the bearing in the rear bearing seat, the connecting rod comprises a connecting rod cover positioned above a crankshaft connecting rod journal and a connecting rod body positioned below the crankshaft connecting rod journal, an upper bearing bush and a lower bearing bush are sleeved on the periphery of the crankshaft connecting rod journal, the fourth temperature sensor is vertically arranged at the upper part of the connecting rod cover, the fourth temperature sensor is in contact with the upper bearing bush, and the end face type platinum thermal resistors are connected with. The temperature measuring points are distributed on the bearings at the front and rear main journals of the two crankshafts and the bearings at the crankshaft connecting rod journals, and the temperature measuring elements are tightly attached to the surfaces of the bearings and the bearing bushes in a deep-buried installation mode, so that the temperature can be more accurately obtained; the RTD platinum resistor and the temperature input module EM AR04 of PLC are connected in a three-wire system or four-wire system wired transmission mode, RTD input which is not used by a module is looped, connection of a temperature measurement circuit is completed, and influence of wire resistance on temperature measurement precision can be reduced.

As a further improvement of the invention, the lower part of the connecting rod body is provided with a mounting groove along the axis direction, a screw sleeve is arranged in the mounting groove, the periphery of the lower end of the screw sleeve is provided with a first annular flange, the first flange is fixedly connected with the lower end surface of the connecting rod body through a plurality of fasteners uniformly arranged at intervals along the circumferential direction, the inner periphery of the screw sleeve is provided with internal threads, the screw sleeve is connected with a ball head screw rod through the internal threads, the periphery of the ball head screw rod is provided with a protective sleeve, the periphery of the protective sleeve is integrally provided with a second annular flange, and the second flange is fixedly connected with the; two supports are arranged on the upper portion of the sliding block, ball head seats are arranged in the supports, and ball heads of the ball head screws are hinged with the ball head seats in the corresponding supports. The ball head screw is fixedly connected with the connecting rod body through the threaded sleeve, the first flange of the threaded sleeve is fixed with the connecting rod body, and the protective sleeve plays a role in protecting the ball head screw and is compact in structure.

As a further improvement of the invention, an unloading sleeve is sleeved on the gear shaft, an unloading sleeve bearing is arranged between the inner wall of a sleeve hole of the unloading sleeve and the periphery of the gear shaft, the flywheel is sleeved on the unloading sleeve through a central hole, a flywheel bearing is arranged between the inner wall of the central hole of the flywheel and the outer wall of the unloading sleeve, a temperature sensor five is an end surface type platinum thermistor, two temperature sensors five which are distributed correspondingly one above the other are arranged on the flywheel, the two temperature sensors five are respectively close to the front end and the rear end of the flywheel, the two temperature sensors five are obliquely embedded into the flywheel and are in contact with the flywheel bearing, the unloading sleeve is also obliquely embedded with the temperature sensor five which is in contact with the unloading sleeve bearing, two temperature collectors which are correspondingly arranged up and down are arranged in the central hole of the flywheel, and each temperature collector is connected with the corresponding temperature, the temperature collector is in wireless connection with the signal concentrator, and the signal concentrator is connected with a temperature input module of the PLC. The flywheel is in a high-speed rotating working condition, in order to avoid wire winding, a signal wireless transmission mode is adopted to acquire temperature information, the temperature sensor five is arranged in the flywheel in a pre-embedded mode, and the temperature measuring element at the end part is in close contact with the outer ring of the bearing; the temperature collectors are symmetrically arranged on the inner ring of the flywheel and are connected with a platinum resistor through a three-wire connection method; connecting a PC end and a setter through a USB interface, finishing the setting of the sampling frequency and the power grade of the temperature collector and the signal concentrator, and confirming the normal work of the instrument through the serial port communication with the signal concentrator (disconnecting the signal concentrator from the PC end after the setting is finished); and finally, connecting the signal concentrator with a CPU of the PLC through an RS 485 port to complete the construction of a hardware circuit.

As a further improvement of the invention, the trepanning of the unloading sleeve comprises a large-diameter section and a small-diameter section, the unloading sleeve bearing is positioned in the large-diameter section of the trepanning, the gear shaft is matched with the small-diameter section of the trepanning, a plurality of connecting plates are uniformly distributed on the periphery of the unloading sleeve at intervals along the circumferential direction, annular flywheel glands sleeved on the unloading sleeve are arranged at the left end and the right end of a central hole of the flywheel, the temperature collector positioned at the upper side is correspondingly connected with the temperature sensor five at the upper side of the flywheel, and the temperature collector positioned at the lower side is correspondingly connected with the temperature sensor. The two temperature collectors are arranged corresponding to the two temperature sensors on the flywheel one by one, and can collect temperature signals on the upper side and the lower side of the bearing of the flywheel.

As a further improvement of the invention, the machine body comprises a left vertical seat and a right vertical seat, a front support plate, a rear support plate and a rear baffle plate are sequentially and transversely arranged between the left vertical seat and the right vertical seat from front to back at intervals, the front support plate, the rear support plate and the rear baffle plate are all vertically arranged, the height of the front support plate is smaller than that of the rear support plate, a front bearing seat is arranged on the front support plate, the rear bearing seat is integrally arranged on the rear support plate, a connecting rod is positioned between the front support plate and the rear support plate, the rear end of a crankshaft extends to the other side of the rear support plate, a bull gear is positioned between the rear support plate and the rear baffle plate, two groups of bilaterally symmetrical mounting assemblies are arranged between the front support plate and the rear support plate, each group of mounting assemblies comprises two longitudinal base plates which are parallel to each other, the base plates are vertically arranged, a cylinder, two balance cylinder and two connecting seats one-to-one set up, and balance cylinder's piston rod stretches out the end and articulates with corresponding connecting seat mutually. The two balance cylinders play a balance role on the sliding block, and the sliding block is ensured to be kept in a balance state.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a schematic view of the structure of the crankshaft, connecting rod and slide block.

Fig. 4 is a schematic structural view of a right guide assembly.

Fig. 5 is a schematic structural view of the right guide assembly.

Fig. 6 is a structural schematic diagram of a first temperature sensor mounted on a guide rail. .

Fig. 7 is a schematic view of the structure of the crankshaft, connecting rod and slide block.

Fig. 8 is a schematic structural view of the fuselage.

FIG. 9 is a cross-sectional view of a crankshaft, connecting rod and slide block.

FIG. 10 is a diagram of the temperature sensor wiring to the temperature input module of the PLC.

Fig. 11 is a diagram showing a positional relationship between a large gear and a small gear.

Fig. 12 is a schematic structural view of the flywheel.

Fig. 13 is a sectional view of the flywheel and the gear shaft.

Fig. 14 is a schematic structural view of the back of the fuselage.

Wherein, 1 fuselage, 1a left vertical seat, 1b right vertical seat, 1c front support plate, 1d rear support plate, 1e rear baffle, 2 slide block, 3 guide component, 3a guide rail I, 3b guide rail II, 4 temperature sensor I, 5 crankshaft, 6 front bearing seat, 7 rear bearing seat, 8 temperature sensor II, 9 temperature sensor III, 10 connecting rod, 10a connecting rod cover, 10b connecting rod body, 11 ball screw, 12 ball seat, 13 temperature sensor IV, 14 bull gear, 15 gear shaft, 15a pinion, 16 flywheel, 17 temperature sensor V, 18 lubricating oil channel, 18a horizontal oil channel, 18b connecting oil channel, 19 guide rail mounting plate, 20 bearing, 21 upper bearing bush, 22 lower bearing bush, 23 mounting groove, 24 screw sleeve, 24a flange I, 25 protective sleeve, 25a flange II, 26 support, 27 unloading sleeve, 27a sleeve hole, 27a1 large diameter section, 27a2 small diameter section, 27b connecting plate, 28 center hole, 29 temperature collector, 30 flywheel gland, 31 balance cylinder, 32 connecting seat, 33 base plate and 34 cylinder mounting plate.

Detailed Description

As shown in fig. 1-14, a temperature monitoring device for a press kinematic pair comprises a body 1, a slide block 2 capable of sliding up and down is arranged on the body 1, the section of the slide block 2 is rectangular, four groups of guide assemblies 3 are vertically arranged on the body 1 corresponding to four edges of the slide block 2, each guide assembly 3 is arranged corresponding to each corner of the slide block 2, each guide assembly 3 comprises a guide rail I3 a and a guide rail II 3b which are perpendicular to each other, the guide rail I3 a and the guide rail II 3b are respectively arranged corresponding to two adjacent planes of the corresponding edges of the slide block 2, each group of guide assemblies 3 is provided with at least one temperature sensor I4, two crankshafts 5 which are parallel to each other are rotatably arranged on the body 1 corresponding to the slide block 2, the crankshafts 5 are longitudinally arranged, a front bearing seat 6 and a rear bearing seat 7 are respectively arranged on the body 1 corresponding to front and rear main journals, the front main journal and the rear main journal of the crankshaft 5 are respectively and rotatably connected on a front bearing seat 6 and a rear bearing seat 7 through bearings 20, the front bearing seat 6 is provided with a second temperature sensor 8, the rear bearing seat 7 is provided with a third temperature sensor 9, a connecting rod 10 is hinged on a connecting rod journal of the crankshaft 5, the lower end of the connecting rod 10 is hinged with the sliding block 2, and the connecting rod 10 is provided with a fourth temperature sensor 13; the rear end of every bent axle 5 all overlaps and is equipped with gear wheel 14, two gear wheels 14 intermeshing are connected, it is provided with gear shaft 15 rotationally to correspond gear wheel 14 on the fuselage 1, gear shaft 15 is parallel with bent axle 5, the pot head that gear shaft 15 is located fuselage 1 is equipped with pinion 15a, pinion 15a is connected with corresponding gear wheel 14 mutually meshing, gear shaft 15 is located the axle body outside fuselage 1 and is provided with the flywheel 16 of being connected with the transmission of rotary driving mechanism, be provided with two at least temperature sensor five 17 on the flywheel 16, each temperature sensor all is connected with PLC temperature detection system electricity. The first guide rail 3a of the guide assembly 3 located on the front side is an integral guide rail plate, the second guide rail 3b of the guide assembly 3 located on the front side comprises two split guide rail plates which are correspondingly arranged up and down, the first guide rail 3a of the guide assembly 3 located on the rear side, the second guide rail 3b comprises two split guide rail plates which are correspondingly arranged up and down, the integral guide rail plate and the split guide rail plates are respectively provided with a lubricating oil channel 18 with one side contacted with the sliding block 2, the lubricating oil channel 18 comprises a plurality of horizontal oil channels 18a which are sequentially arranged at equal intervals from top to bottom, a connecting oil channel 18b is obliquely arranged between any two adjacent horizontal oil channels 18a up and down, and each guide assembly 3 is fixedly installed on the machine body 1 through a corresponding guide rail installation plate 19. The first temperature sensor 4 is a screw thread installation type platinum thermal resistor, the depth of the screw thread installation type thermal resistor inserted into the first guide rail 3a or the second guide rail 3b from the side surface is 0.3-0.5 of the width of the corresponding guide rail, the first temperature sensor 4 is installed on the two guide rails positioned on the front side of the sliding block 2, the two guide rails positioned on the rear side of the sliding block 2 and the two guide rails positioned on the rear part of the right side of the sliding block 2, and the first temperature sensor 4 is connected with a temperature input module of a PLC in a wire transmission mode. The second temperature sensor 8, the third temperature sensor 9 and the fourth temperature sensor 13 are all end-face platinum thermistors, the second temperature sensor 8 is vertically arranged at the lower part of the front bearing seat 6, the second temperature sensor 8 is contacted with a bearing 20 in the front bearing seat 6, the rear bearing seat 7 is integrally arranged on the machine body 1, the third temperature sensor 9 is vertically arranged at the upper part of the rear bearing seat 7, the third temperature sensor 9 is contacted with the bearing 20 in the rear bearing seat 7, the connecting rod 10 comprises a connecting rod cover 10a positioned above a connecting rod journal of the crankshaft 5 and a connecting rod body 10b positioned below the connecting rod journal of the crankshaft 5, an upper bearing bush 21 and a lower bearing bush 22 are sleeved on the periphery of the connecting rod journal of the crankshaft 5, the fourth temperature sensor 13 is vertically arranged at the upper part of the connecting rod cover 10, as shown in fig. 10, the end-face type platinum thermistor is connected to the temperature input module of the PLC by a three-wire or four-wire transmission; wherein, the first is the connection of the input end in a ring way, and the second, third and fourth are the connection of two, three and four wire temperature sensors respectively. The lower part of the connecting rod body 10b is provided with a mounting groove 23 along the axial direction, a screw sleeve 24 is arranged in the mounting groove 23, the periphery of the lower end of the screw sleeve 24 is provided with a first annular flange 24a, the first flange 24a is fixedly connected with the lower end face of the connecting rod body 10b through a plurality of fasteners uniformly arranged at intervals along the circumferential direction, the inner periphery of the screw sleeve 24 is provided with internal threads, the screw sleeve 24 is connected with a ball-head screw 11 through the internal threads, the periphery of the ball-head screw 11 is provided with a protective sleeve 25, the periphery of the protective sleeve 25 is integrally provided with a second annular flange 25a, and the second flange 25a is fixedly connected with the; two supports 26 are arranged at the upper part of the sliding block 2, a ball head seat 12 is arranged in each support 26, and the ball head of each ball head screw 11 is hinged with the corresponding ball head seat 12 in each support 26. An unloading sleeve 27 is sleeved on the gear shaft 15, an unloading sleeve 27 bearing is arranged between the inner wall of a sleeve hole 27a of the unloading sleeve 27 and the periphery of the gear shaft 15, the flywheel 16 is sleeved on the unloading sleeve 27 through a central hole 28, a flywheel bearing is arranged between the inner wall of the central hole 28 of the flywheel 16 and the outer wall of the unloading sleeve 27, the temperature sensors five 17 are end-surface platinum thermistors, two temperature sensors five 17 which are correspondingly distributed one above the other are arranged on the flywheel 16, the two temperature sensors five 17 are respectively close to the front end and the rear end of the flywheel 16, the two temperature sensors five 17 are obliquely embedded into the flywheel 16 and are in contact with the flywheel bearing, the temperature sensors five 17 which are in contact with the unloading sleeve 27 bearing are also obliquely embedded into the unloading sleeve 27, two temperature collectors 29 which are correspondingly arranged up and down are arranged in the central hole 28 of the flywheel 16, and each temperature collector 29 is connected with the corresponding temperature, the temperature collector 29 is wirelessly connected with the signal concentrator, and the signal concentrator is connected with the temperature input module of the PLC. The sleeve hole 27a of the unloading sleeve 27 comprises a large-diameter section 27a1 and a small-diameter section 27a2, the unloading sleeve 27 is located in the large-diameter section 27a1 of the sleeve hole 27a in a bearing mode, the gear shaft 15 is matched with the small-diameter section 27a2 of the sleeve hole 27a, a plurality of connecting plates 27b are evenly distributed on the periphery of the unloading sleeve 27 at intervals along the circumferential direction, annular flywheel glands 30 sleeved on the unloading sleeve 27 are arranged at the left end and the right end of a central hole 28 of the flywheel 16, the temperature collector 29 located on the upper side is correspondingly connected with the temperature sensor five 17 on the upper side of the flywheel 16, and the temperature collector 29 located on the lower side is correspondingly connected with the temperature sensor five. The machine body 1 comprises a left vertical seat 1a and a right vertical seat 1b, a front support plate 1c, a rear support plate 1d and a rear baffle plate 1e are sequentially and transversely arranged between the left vertical seat 1a and the right vertical seat 1b from front to back at intervals, the front support plate 1c, the rear support plate 1d and the rear baffle plate 1e are vertically arranged, the height of the front support plate 1c is smaller than that of the rear support plate 1d, a front bearing seat 6 is arranged on the front support plate 1c, a rear bearing seat 7 is integrally arranged on the rear support plate 1d, a connecting rod 10 is positioned between the front support plate 1c and the rear support plate 1d, the rear end of a crankshaft 5 extends to the other side of the rear support plate 1d, a gearwheel 14 is positioned between the rear support plate 1d and the rear baffle plate 1e, two sets of bilaterally symmetrical installation assemblies are arranged between the front support plate 1c and the rear support plate 1d, each set of installation, be provided with cylinder mounting panel 34 between two base plates 33, vertically on the cylinder mounting panel 34 be provided with balance cylinder 31, the left and right sides at slider 2 top all is provided with U-shaped connecting seat 32, and two balance cylinder 31 set up with two connecting seats 32 one-to-one, and balance cylinder 31's piston rod stretches out the end and articulates with corresponding connecting seat 32 mutually.

When the stamping machine works, the rotary driving mechanism is a motor, a belt pulley on the motor drives the flywheel 16 to rotate through a transmission belt, the flywheel 16 drives the pinion 15a on the gear shaft 15 to rotate, the pinion 15a drives the bull gears 14 to rotate, the two bull gears 14 are meshed with each other, the two crankshafts 5 rotate simultaneously, the crankshafts 5 drive the connecting rods 10 to swing, the two connecting rods 10 drive the sliding block 2 to move up and down, and an upper die on the sliding block 2 is matched with a lower die of the machine body 1 to complete stamping. The invention has the advantages that: the first temperature sensor 4 monitors the temperature of the guide assemblies 3 at the four corners of the slide block 2; the second temperature sensor 8, the third temperature sensor 9 and the fourth temperature sensor 13 respectively monitor the temperature of the bearings 20 on the front and rear main journals of the crankshaft 5 and the temperature of the bearing bushes on the connecting rod journals of the crankshaft 5, and the fifth temperature sensor 17 detects the temperature of the flywheel bearings. Selecting 6 guide rails, installing a first contact type temperature sensor 4, constructing a temperature field of the guide assembly 3, wherein the first temperature sensor 4 is a screw thread installation type platinum thermal resistor, and tightly attaching the first temperature sensor 4 to the inner part of the guide rails by combining with a pressing device such as a movable cutting sleeve or a spring washer, so that the central temperature of the guide rails is detected, and the measured temperature is accurate; the temperature measuring points are distributed on the bearings 20 at the front and the rear main journals of the two crankshafts 5 and the bearings 20 at the connecting rod journals of the crankshafts 5, and the temperature measuring elements are tightly attached to the surfaces of the bearings and the bearing bushes in a deep-buried installation mode, so that the temperature can be obtained more accurately; the RTD platinum resistor and the temperature input module EM AR04 of the PLC are connected in a three-wire system or four-wire system wired transmission mode, unused RTD input of the module is connected in a looped mode, connection of a temperature measuring circuit is completed, and influence of wire resistance on temperature measuring accuracy can be reduced; the flywheel 16 is in a high-speed rotating working condition, in order to avoid wire winding, the temperature information is acquired in a signal wireless transmission mode, the temperature sensor five 17 is installed inside the flywheel 16 in a pre-embedded mode, and the temperature measuring element at the end part is in close contact with the outer ring of the bearing; the temperature collectors 29 are symmetrically arranged on the inner ring of the flywheel 16 and connected with a platinum resistor through a three-wire connection method; connecting a PC end and a setter through a USB interface to complete the setting of the sampling frequency and the power level of the temperature collector 29 and the signal concentrator, and confirming the normal work of the instrument through the serial port communication with the signal concentrator (the connection between the signal concentrator and the PC end is disconnected after the setting is completed); and finally, connecting the signal concentrator with a CPU of the PLC through an RS 485 port to complete the construction of a hardware circuit.

The temperature rise measuring device can measure the temperature rise of the guide rail kinematic pair, the crankshaft 5 connecting rod kinematic pair and the flywheel kinematic pair of the press machine, each temperature sensor transmits a temperature signal to the PLC temperature detection system, the display and early warning are carried out on the kinematic pair at the position with the overhigh temperature, the staff is reminded on the operation panel, and the problem that the service life of the press machine is influenced by the overhigh temperature of the kinematic pair of the press machine is avoided.

The present invention is not limited to the above-mentioned embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative efforts according to the disclosed technical contents, and these substitutions and modifications are all within the protection scope of the present invention.