Automatic assembling device for lead-out rod and insulating sleeve for defrosting heater

Abstract

The utility model discloses an automatic lead-out rod and insulation sleeve assembling device for a defrosting heater, which belongs to the technical field of electric heating tube assembly and comprises a rack, a lead-out rod feeding assembly, an insulation sleeve feeding assembly and a clamping and discharging assembly. The insulation sleeve feeding assembly comprises a vibration disc, an insulation sleeve receiving seat and a crimping mechanism. The clamping and discharging assembly comprises a pneumatic clamping jaw located between the discharging pushing mechanism and the insulation sleeve receiving base, a lifting air cylinder driving the pneumatic clamping jaw to move vertically and a translation air cylinder driving the pneumatic clamping jaw and the lifting air cylinder to move in the direction away from the material box together. A counting sensor used for detecting the translation times of the output shaft of the translation air cylinder is installed at the tail end of the rack. The automatic feeding device is simple in structure, free of operation debugging, low in installation cost and capable of guaranteeing smooth feeding of the insulation sleeves and counting of the number of semi-finished products.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric heating tube assembly technical field especially, relates to a kind of automatic assembly device of lead-out rod and insulating sleeve for defrosting heater. BACKGROUND

[0002] Defrosting heater is necessary heating element of refrigeration equipment, and its lead-out end is provided with lead-out rod, and the proximal end of lead-out rod is sleeved with insulating sleeve for limiting magnesium oxide powder in defrosting heater overflow.Lead-out rod and insulating sleeve need to complete the assembly of semi-finished product before assembling defrosting heater, in order to improve its assembly efficiency, patent CN208644557U discloses a kind of lead-out rod and plug automatic assembly device, including plug feeding mechanism and lead-out rod feeding mechanism, plug feeding mechanism is by plug clamp mouth at plug straight vibration outlet place, and the insulating sleeve exported by vibration disc and plug straight vibration is clamped, to complete the feeding of insulating sleeve, lead-out rod feeding mechanism is by feeding groove wheel motor drive feeding groove wheel, and the lead-out rod in lead-out channel in lead-out rod material box is exported one by one, and lead-out rod is rotated to the position corresponding to plug clamp mouth, under the pushing of push cylinder, the insulating sleeve held by plug clamp mouth and lead-out rod on feeding groove wheel realize assembly.

[0003] However, the above-mentioned device needs to select high-precision servo motor as feeding groove wheel motor when assembling, to ensure that feeding groove wheel can drive lead-out rod to reach specified position every time after operation, and the position of feeding groove wheel and plug clamp mouth needs to be accurately debugged, which increases installation cost and debugging difficulty;At the same time, the device cannot effectively count the number of semi-finished products of rotation assembly, which affects the inventory of materials. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a kind of lead-out rod and insulating sleeve automatic assembly device for defrosting heater, simple structure, no need to run debugging, low installation cost, can guarantee the smooth feeding of insulating sleeve and the statistical work of semi-finished product quantity.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] An automatic assembly device for lead-out rods and insulating sleeves for defrosting heaters includes a frame and lead-out rod feeding assembly, insulating sleeve feeding assembly, and clamping and unloading assembly mounted on the frame. The lead-out rod feeding assembly includes a material box, a stepped feeding mechanism for vertically conveying the lead-out rods in the material box, and a discharge pushing mechanism for horizontally conveying the lead-out rods discharged from the stepped feeding mechanism. The insulating sleeve feeding assembly includes a vibratory feeder, an insulating sleeve receiving seat corresponding to the outlet of the discharge pushing mechanism, a discharge channel for connecting the vibratory feeder and the insulating sleeve receiving seat, and a pressing mechanism for clamping the insulating sleeve in the insulating sleeve receiving seat. The clamping and unloading assembly includes a pneumatic gripper located between the discharge pushing mechanism and the insulating sleeve receiving seat, a lifting cylinder for driving the pneumatic gripper to move vertically, and a translation cylinder for driving the pneumatic gripper and the lifting cylinder to move together in a direction away from the material box. A counting sensor for detecting the number of translations of the output shaft of the translation cylinder is installed at the end of the frame. A stepped feeding mechanism is used to complete the feeding operation of the lead-out rods one by one. The structure is simple and reduces the cost of the device. Since the insulating sleeve receiving seat is set to correspond with the outlet of the discharge pushing mechanism, this position is the assembly position of the lead-out rod and the insulating sleeve. The position is fixed and no debugging is required. A counting sensor is installed on the translation path of the translation cylinder. The assembly counting of the semi-finished products is completed by recording the number of times the translation cylinder moves. The device has a high degree of automation and the assembly operation is convenient and efficient.

[0007] The material feeding mechanism includes a lead-out rod storage platform fixed to the outside of the material box and a pushing cylinder fixed to the frame outside the lead-out rod storage platform. A horizontally penetrating lead-out rod storage platform is provided on the lead-out rod storage platform. A pushing rod that slides in conjunction with the lead-out rod storage platform is fixed to the output end of the pushing cylinder. The lead-out rod storage platform has an arc-shaped bottom. An arc-shaped receiving groove coaxial with the arc-shaped bottom is provided inside the insulating sleeve receiving seat. The pressing mechanism includes a pressure plate located above the receiving groove and a clamping cylinder that drives the pressure plate to move closer to / away from the receiving groove. An arc-shaped pressing groove is provided on the lower surface of the pressure plate. The arc-shaped pressing groove and the arc-shaped receiving groove cooperate to form a clamping channel for clamping the insulating sleeve. The arc-shaped pressing groove and the arc-shaped receiving groove complete the clamping of the insulating sleeve, ensuring uniform force on the surface of the insulating sleeve, thereby effectively preventing deformation of the insulating sleeve during assembly.

[0008] The stepped feeding mechanism includes multiple fixed steps fixed inside the material box, multiple feeding steps extending through the multiple fixed steps, and feeding cylinders that drive the multiple feeding steps to move vertically. A feeding seat is fixed to the bottom of each of the multiple fixed steps, and a storage plate with an adjustable tilt angle is movably mounted on the top of the feeding seat. Through the cooperation between the multiple feeding steps and the multiple fixed steps, the feeding operation of the lead-out rods is completed. By adjusting the tilt angle of the storage plate, while ensuring sufficient storage space inside the material box, all lead-out rods in the material box can reach the feeding seat under gravity for subsequent feeding operations.

[0009] The translation cylinder is fixed on the rack through a vertical support, a guide rail parallel to the output direction of the translation cylinder is fixed on the vertical support, the counting sensor is fixed on the vertical support outside the end of the guide rail, the output end of the translation cylinder is fixed with a sliding seat which cooperates with the guide rail, and the cylinder body of the lifting cylinder is fixedly connected with the sliding seat.

[0010] The surface of the blanking seat is provided with a first slope which inclines downward to the side of the multi-stage fixed step, a hinged groove is arranged at the top of the slope of the blanking seat, and the end of the storage plate is hinged to the hinged groove through a hinge shaft.

[0011] The multi-stage fixed step is provided with a plurality of vertical sliding grooves along the length direction, the blanking seat is provided with a sliding hole which is in communication with the vertical sliding grooves, the multi-stage blanking step is composed of a plurality of multi-stage blanking sub-steps which are in sliding connection with the vertical sliding grooves and the sliding hole, the bottom of the multi-stage blanking sub-step is fixedly connected with the output end of the blanking cylinder through a base, the distance between the vertical surface of each sub-step of the multi-stage blanking sub-step and the lead-out rod storage table is greater than the distance between the vertical surface of the corresponding multi-stage fixed step and the lead-out rod storage table, and the difference between the two distances is not greater than the outer diameter of the lead-out rod. The multi-stage blanking sub-steps are uniformly distributed in the vertical sliding grooves of the multi-stage fixed step, so as to further reduce the occupied space of the stepped blanking mechanism in the tank and improve the storage space of the tank for storing the lead-out rods.

[0012] The pushing rod is connected with the output end of the pushing cylinder through an adjusting assembly, which is used for adjusting the length of the pushing rod extending into the discharging groove, the tank is provided with a movable side plate which is adjustable along the length direction of the multi-stage fixed step, and the position of the movable side plate is correspondingly arranged with the end of the pushing rod. The movable side plate and the adjustable pushing rod are matched, which are used for assembling the lead-out rods with different lengths, so as to improve the applicability of the device.

[0013] The adjusting assembly comprises an adjusting seat and a positioning bolt, a through hole is arranged in the adjusting seat for horizontal sliding of the pushing rod, the positioning bolt is in threaded connection with the pushing rod after penetrating through the adjusting seat and is in locking contact with the pushing rod, and the lead-out rod storage table is provided with a scale mark which is used for marking the initial length of the pushing rod in the discharging groove.

[0014] One end of the movable side plate is provided with a step part which is matched with the multi-stage fixed step, the other end of the movable side plate is fixedly provided with a buckle plate, the buckle plate and the movable side plate are provided with a slot into which the back plate of the tank is inserted, and the buckle plate is provided with a locking bolt which is in threaded connection with the back plate of the tank and is in abutment with the back plate.

[0015] The lead-out rod detection sensor is fixedly installed on the side wall of the material box above the storage plate, and is used for sensing the stacking height of the lead-out rod in the material box.

[0016] The utility model has the following beneficial effects:

[0017] The utility model discloses a step feeding mechanism is completed to the one -by -one feeding operation of lead-out rod, and the structure is simple, and the device cost is reduced, because the insulating sleeve material seat and the export of material pushing mechanism correspond setting, this position is the assembly position of lead-out rod and insulating sleeve, and the position is fixed, and debugging is not needed, install the counting sensor on the translation path of the translation cylinder, and the assembly counting work of semi -finished product is completed by recording the action number of translation cylinder, and the device is high in degree of automation, and assembly operation is convenient and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed in the embodiment, and should understand, the following drawing only shows some embodiments of the utility model, therefore should not be regarded as the limited definition of range, for ordinary skilled person in the art, under the premise of not paying creative labor, can also obtain other related drawings according to these drawings.

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2 It is the structural schematic diagram of another angle of the utility model;

[0021] Figure 3 It is the front view of the utility model;

[0022] Figure 4 It is the top view of the utility model;

[0023] Figure 5 It is the sectional view along Figure 4 A-A direction of the utility model;

[0024] Figure 6 It is the sectional view along Figure 4 B-B direction of the utility model;

[0025] Figure 7 It is Figure 4 The local enlarged view of C of the utility model;

[0026] Figure 8 It is Figure 5 The local enlarged view of D of the utility model;

[0027] Figure 9 For Figure 6 Local enlarged view of E in the middle;

[0028] Figure 10 For the partial schematic view of the vibration disc in the utility model;

[0029] Figure 11 For the partial schematic view of the material box in the utility model.

[0030] Reference signs: 1, rack; 2, material box; 201, movable side plate; 202, mounting opening; 203, buckle plate; 204, locking bolt; 205, pressing plate part; 3, stepped feeding mechanism; 301, multi-stage fixed step; 3011, vertical sliding groove; 302, multi-stage feeding step; 3021, multi-stage feeding sub-step; 303, feeding cylinder; 304, discharging seat; 3041, sliding hole; 3042, hinged groove; 4, lead-out rod storage platform; 401, discharging chute; 5, discharging pushing mechanism; 501, pushing cylinder; 502, pushing rod; 503, adjusting seat; 6, vibration disc; 601, discharging channel; 602, spiral feeding channel; 603, distributing baffle; 604, passing tooth; 605, vertical inlet; 606, abutting plate; 607, horizontal discharging opening; 7, insulating sleeve feeding seat; 701, arc-shaped feeding groove; 702, limiting welding point; 8, crimping mechanism; 801, clamping cylinder; 802, pressing plate; 803, arc-shaped pressing groove; 9, pneumatic clamping jaw; 10, lifting cylinder; 11, translation cylinder; 1101, guide rail; 1102, sliding seat; 12, counting sensor; 13, storage plate; 1301, jacking cylinder; 14, insulating sleeve detection sensor; 15, lead-out rod detection sensor. DETAILED DESCRIPTION

[0031] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0033] As Figures 1-3As shown, the device comprises a rack 1 and a lead rod feeding assembly, an insulating sleeve feeding assembly and a clamping and discharging assembly installed on the rack 1. The lead rod feeding assembly comprises a bin 2, a stepped feeding mechanism 3 for vertically conveying the lead rod in the bin 2, and a discharge pushing mechanism 5 for horizontally conveying the lead rod discharged from the stepped feeding mechanism 3. The insulating sleeve feeding assembly comprises a vibrating disc 6, an insulating sleeve receiving seat 7 arranged corresponding to the outlet of the discharge pushing mechanism 5, a discharge channel 601 for connecting the vibrating disc 6 and the insulating sleeve receiving seat 7, and a crimping mechanism 8 for clamping the insulating sleeve in the insulating sleeve receiving seat 7. Preferably, in order to ensure the rapid discharge of the insulating sleeve, the discharge channel 601 is inclined downward along the conveying direction of the insulating sleeve. The clamping and discharging assembly comprises a pneumatic clamp jaw 9 between the discharge pushing mechanism 5 and the insulating sleeve receiving seat 7, a lifting cylinder 10 for driving the pneumatic clamp jaw 9 to move vertically, and a translation cylinder 11 for driving the pneumatic clamp jaw 9 and the lifting cylinder 10 to move away from the bin 2. A counting sensor 12 is installed at the end of the rack 1 for detecting the number of times of translation of the output shaft of the translation cylinder 11. The device uses the stepped feeding mechanism 3 to replace the motor-driven feeding groove wheel in the prior art, without the need for a precision motor, thereby reducing the cost of the device. Since the insulating sleeve receiving seat 7 is directly arranged corresponding to the discharge pushing mechanism 5, it is installed in one step and does not need to be adjusted again, which is convenient for operation. The counting sensor 12 is installed on the translation path of the translation cylinder 11, and the number of actions of the translation cylinder 11 is recorded to complete the assembly counting of the semi-finished product, thereby improving the automation degree of the device.

[0034] The insulating sleeve for the defrosting heater has a unique structure, which is a cylindrical part with an outer diameter of 6 mm, a height of 4 mm, and an open end. The middle part of the insulating sleeve has a through hole for the lead rod to pass through. In order to ensure that the openings of the insulating sleeves conveyed by the vibrating disc 6 into the discharge channel 601 are oriented in the same direction, thereby ensuring the correctness of the assembly of the semi-finished product, the vibrating disc 6 is sequentially provided with a first material selection track for selecting the insulating sleeve standing on the track, a second material selection track for selecting the insulating sleeve with the cylindrical opening upward, and a reversing track for converting the vertical conveying of the insulating sleeve to horizontal conveying. Specifically, as shown in the drawings, Figure 10As shown, the first material selection track includes a first track section connected with the spiral material feeding track 602 in the vibration disc 6 and a material distribution baffle 603 fixed above the track, the material distribution baffle 603 has an arc surface part curved towards the center of the vibration disc 6 along the material conveying direction, the distance between the material distribution baffle 603 and the first track section is greater than the height of the insulating sleeve and less than the maximum diameter of the insulating sleeve, since the outer diameter of the insulating sleeve is greater than the height, the insulating sleeve that does not stand vertically through the first track section will fall into the vibration disc 6 for re-screening under the block of the material distribution baffle 603; a material passing groove is provided on the second material selection track, a plurality of material passing teeth 604 are arranged in the material passing groove along the material conveying direction, the width of the material passing teeth 604 is less than the cylindrical opening size of the insulating sleeve, the insulating sleeve that stands vertically through the first material selection track includes two cases of opening downward and opening upward, when the opening of the insulating sleeve is downward, it will fall into the vibration disc 6 for re-screening after passing through the material passing teeth 604; so that the insulating sleeve after screening through the second material selection track is all vertically arranged and arranged with the opening upward, after passing through the reversing track, since the reversing track has a vertical material inlet 605 connected with the second material selection track and a horizontal material outlet 607 connected with the material outlet channel 601 at two ends respectively, the vertically arranged insulating sleeve becomes horizontal after turning on the track, enters the material outlet channel 601, and at the same time, in order to avoid the insulating sleeve from falling into the vibration disc 6 during the reversing process, the vertical material inlet 605 is fixed with an abutting plate 606 close to the side of the center of the vibration disc 6.

[0035] As Figure 5 shown, in order to ensure the stability of the translational cylinder 11 driving the translational movement of the pneumatic clamping jaw 9, the translational cylinder 11 is fixed on the rack 1 through a vertical support, and a guide rail 1101 parallel to the output direction of the translational cylinder 11 is fixed on the vertical support, the counting sensor 12 is fixed on the vertical support outside the end of the guide rail 1101, the output end of the translational cylinder 11 is fixed with a sliding seat 1102 cooperating with the guide rail 1101, and the cylinder body of the lifting cylinder 10 is fixedly connected with the sliding seat 1102, specifically, the guide rail 1101 is a T-shaped guide rail 1101, and a T-shaped sliding groove cooperating with the guide rail 1101 is provided on the sliding seat 1102.

[0036] As Figure 4 , Figure 6 and Figure 9As shown, the discharge pushing mechanism 5 includes a lead-out rod storage platform 4 fixed outside the material box 2, a pushing cylinder 501 fixed on the rack 1 outside the lead-out rod storage platform 4, the lead-out rod storage platform 4 is provided with a discharge slot 401 penetrating in the horizontal direction, the output end of the pushing cylinder 501 is fixed with a pushing rod 502 sliding with the discharge slot 401, the discharge slot 401 has an arc-shaped slot bottom, the insulation sleeve receiving seat 7 is provided with an arc-shaped receiving slot 701 coaxial with the arc-shaped slot bottom, the crimping mechanism 8 includes a pressing plate 802 above the receiving slot and a clamping cylinder 801 driving the pressing plate 802 to move close to / distance from the receiving slot, the lower surface of the pressing plate 802 is provided with an arc-shaped pressing slot 803, the arc-shaped pressing slot 803 and the arc-shaped receiving slot 701 cooperate to form a clamping channel for clamping the insulation sleeve, and due to the existence of the arc-shaped pressing slot 803 and the arc-shaped receiving slot 701, the surface of the insulation sleeve is uniformly stressed during clamping, which can effectively avoid the deformation of the insulation sleeve during assembly; further, as shown in Figure 9 the surfaces of the arc-shaped receiving slot 701 and the arc-shaped pressing slot 803 are fixed with a limiting weld point 702 limiting the axial movement of the insulation sleeve, so as to reduce the clamping force limiting the movement of the insulation sleeve.

[0037] Further preferably, the insulation sleeve receiving seat 7 is provided with an insulation sleeve detection sensor 14, the sensing end of the insulation sleeve detection sensor 14 penetrates through the insulation sleeve receiving seat 7 and communicates with the arc-shaped receiving slot 701, the wiring end of the insulation sleeve detection sensor 14 is connected with the clamping cylinder 801 through a control unit, and the control unit receives signals from the insulation sleeve detection sensor 14 to control the action of the clamping cylinder 801.

[0038] As shown in Figure 4 , Figure 5 and Figure 7 the stepped feeding mechanism 3 includes a plurality of fixed steps 301 fixed in the material box 2, a plurality of feeding steps 302 penetratingly arranged in the plurality of fixed steps 301, and a feeding cylinder 303 driving the plurality of feeding steps 302 to move vertically, and through the cooperation between the plurality of feeding steps 302 and the plurality of fixed steps 301, the feeding operation of the lead-out rod is completed; the bottom of the plurality of fixed steps 301 is fixed with a discharging seat 304, and the top of the discharging seat 304 is movably provided with a storage plate 13 with an adjustable inclination angle, and by adjusting the inclination angle of the storage plate 13, the lead-out rods in the material box 2 can all reach the discharging seat 304 under the action of gravity to perform subsequent feeding operation under the premise of ensuring sufficient storage space in the material box 2.

[0039] Further preferably, the surface of the discharging seat 304 has a first slope downwardly inclined toward one side of the multi-stage fixed step 301. Specifically, the angle between the first slope and the bottom plate of the material box 2 is 5-10°, so that the lead-out rod on the discharging seat 304 slides to the multi-stage fixed step 301 under the action of gravity for feeding. A hinged groove 3042 is formed at the top position of the slope of the discharging seat 304, and the end of the storage plate 13 is hinged to the hinged groove 3042 via a hinge shaft. The bottom of the storage plate 13 is connected to the bottom plate of the material box 2 via a jacking cylinder 1301. In order to ensure that the installation space of the jacking cylinder 1301 does not affect the storage space in the material box 2, an installation opening 202 is formed on the bottom plate of the material box 2, and a mounting plate is fixed at the corresponding position of the installation opening 202. The cylinder body of the jacking cylinder 1301 is hinged to the mounting plate, and the output end of the jacking cylinder 1301 is hinged to the back side of the storage plate 13.

[0040] The material box 2 is provided with a lead-out rod detection sensor 15 for sensing the accumulation height of the lead-out rod in the material box 2. Specifically, the lead-out rod detection sensor 15 is fixedly installed on the side wall of the material box 2 above the storage plate 13. The lead-out rod sensor is in communication connection with the jacking cylinder 1301 via a control unit. When the height of the lead-out rod in the material box 2 is lower than the detection height of the lead-out rod sensor, the control unit receives a signal to control the jacking cylinder 1301 to act, thereby lifting the storage plate 13, so that the insufficient number of lead-out rods in the material box 2 quickly slide onto the discharging seat 304, avoiding the lead-out rod from being broken.

[0041] As shown in Figure 7 and Figure 11 In order to further reduce the occupied space of the stepped feeding assembly in the material box 2, thereby increasing the storage space of the material box 2 for storing lead-out rods, the multi-stage fixed step 301 is provided with a plurality of vertical sliding grooves 3011 along the length direction. The discharging seat 304 is provided with a sliding hole 3041 in communication with the vertical sliding grooves 3011. The multi-stage feeding step 302 is composed of a plurality of multi-stage feeding sub-steps 3021 in sliding connection with the vertical sliding grooves 3011 and the sliding hole 3041. The bottom of the multi-stage feeding sub-step 3021 is fixedly connected to the output end of the feeding cylinder 303 via a base. The distance between the vertical surface of each step of the multi-stage feeding sub-step 3021 and the lead-out rod storage platform 4 is greater than the distance between the vertical surface of the corresponding multi-stage fixed step 301 and the lead-out rod storage platform 4, and the difference between the two distances is not greater than the outer diameter of the lead-out rod. Further preferably, the step surface of the multi-stage fixed step 301 and the multi-stage feeding sub-step 3021 has a second slope inclined in the same direction as the first slope, as shown in Figure 8As shown, in the embodiment, the number of steps of the multi-stage fixed step 301 is 2, the number of steps of the multi-stage feeding sub-step 3021 is 3, and in the initial state of the feeding cylinder 303, the surface of the first step of each multi-stage feeding sub-step 3021 is flush with the surface of the discharging seat 304. In the feeding state of the feeding cylinder 303, the first step of the multi-stage feeding sub-step 3021 is higher than the first step of the multi-stage fixed step 301, the second step of the multi-stage feeding sub-step 3021 is higher than the second step of the multi-stage fixed step 301, and the top step of the multi-stage feeding sub-step 3021 is higher than the top position of the discharging groove 401.

[0042] In order to make the device suitable for assembly of lead-out rods of different lengths, so as to improve the applicability of the device, the pushing rod 502 is connected to the output end of the pushing cylinder 501 through an adjusting assembly, which is used to adjust the length of the pushing rod 502 extending into the discharging groove 401. The material box 2 has a movable side plate 201 which is adjustable in position along the length direction of the multi-stage fixed step 301, and the position of the movable side plate 201 corresponds to the end of the pushing rod 502. Specifically, as shown in Figure 3 As shown, the adjusting assembly includes an adjusting seat 503 and a positioning bolt. The adjusting seat 503 is provided with a through hole for horizontal sliding of the pushing rod 502, and the positioning bolt is in threaded contact with the pushing rod 502 after penetrating through the adjusting seat 503. The lead-out rod storage platform 4 is provided with a scale mark for identifying the initial length of the pushing rod 502 in the discharging groove 401. Figure 11 As shown, one end of the movable side plate 201 has a step portion matched with the multi-stage fixed step 301, and the other end of the movable side plate 201 is fixed with a buckle plate 203. The buckle plate 203 and the movable side plate 201 have an insertion slot for insertion of the back plate of the material box 2, and the buckle plate 203 is threadedly connected with a locking bolt 204 abutting against the back plate of the material box 2. Further preferably, in order to improve the stability of the movement of the pushing rod 502 in the discharging groove 401, the step portion extends a pressing plate portion towards the side of the lead-out rod storage platform 4, and the pressing plate portion and the discharging groove 401 form a discharging passage 601 for horizontal movement of the pushing rod 502.

[0043] In the implementation of the above technical solution, the control unit is a PLC control system, which is a prior art and will not be described in detail. The entire device uses a cylinder to run, which is lower in cost compared to the prior art. Before assembly and operation, insulating sleeves are poured into the vibration disc 6, and lead-out rods are stacked and placed in the material box 2. After the insulating sleeves are automatically arranged, they enter the arc-shaped material receiving groove 701 of the insulating sleeve material receiving seat 7 through the discharging passage 601. When the insulating sleeve detection sensor 14 detects the insulating sleeve, the control unit (PLC) controls the clamping cylinder 801 to act, and the pressing plate 802 clamps the insulating sleeve in the insulating sleeve material receiving seat 7. At the same time, as shown in Figure 1As shown, the feeding cylinder 303 acts to take the lead-out rod in the material box 2 to the discharge groove 401 through the multi-stage feeding steps 302, the pushing rod 502 is driven by the pushing cylinder 501 to move along the x direction to push the lead-out rod to insert into the insulating sleeve with a specified length, the pneumatic clamping jaw 9 clamps the lead-out rod between the lead-out rod storage table 4 and the insulating sleeve connecting material seat 7, sequentially passes through the z direction lifting movement of the lifting cylinder 10 and the y direction translation movement of the translation cylinder 11, and moves to the end of the guide rail 1101, the counting sensor 12 senses counting, the pneumatic clamping jaw 9 is released and reset to perform a cycle operation, and the whole assembly process is convenient, efficient and high in automation.

[0044] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. The present application can be changed and modified in various ways by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic assembly device for lead-out rods and insulating sleeves for a defrosting heater, characterized in that, The system includes a frame and a lead-out rod feeding assembly, an insulating sleeve feeding assembly, and a clamping and unloading assembly mounted on the frame. The lead-out rod feeding assembly includes a material box, a stepped feeding mechanism for vertically conveying the lead-out rods in the material box, and a discharge pushing mechanism for horizontally conveying the lead-out rods exported from the stepped feeding mechanism. The insulating sleeve feeding assembly includes a vibratory feeder, an insulating sleeve receiving seat corresponding to the outlet of the discharge pushing mechanism, a discharge channel for connecting the vibratory feeder and the insulating sleeve receiving seat, and a pressing mechanism for clamping the insulating sleeves in the insulating sleeve receiving seat. The clamping and unloading assembly includes a pneumatic gripper located between the discharge pushing mechanism and the insulating sleeve receiving seat, a lifting cylinder for driving the pneumatic gripper to move vertically, and a translation cylinder for driving the pneumatic gripper and the lifting cylinder to move together in a direction away from the material box. A counting sensor is installed at the end of the frame to detect the number of translations of the output shaft of the translation cylinder.

2. The automatic assembly device for lead-out rods and insulating sleeves for a defrosting heater according to claim 1, characterized in that, The material feeding mechanism includes a lead-out rod storage platform fixed to the outside of the material box and a pushing cylinder fixed to the frame outside the lead-out rod storage platform. The lead-out rod storage platform has a horizontally penetrating discharge groove. The output end of the pushing cylinder is fixed with a pushing rod that slides in cooperation with the discharge groove. The discharge groove has an arc-shaped bottom. The insulating sleeve receiving seat has an arc-shaped receiving groove coaxial with the arc-shaped bottom. The pressing mechanism includes a pressure plate located above the receiving groove and a clamping cylinder that drives the pressure plate to move closer to / away from the receiving groove. The lower surface of the pressure plate has an arc-shaped pressing groove. The arc-shaped pressing groove and the arc-shaped receiving groove cooperate to form a clamping channel for clamping the insulating sleeve.

3. The automatic assembly device for lead-out rods and insulating sleeves for a defrosting heater according to claim 2, characterized in that, The stepped feeding mechanism includes multiple fixed steps fixed inside the material box, multiple feeding steps that pass through the multiple fixed steps, and a feeding cylinder that drives the multiple feeding steps to move vertically. A feeding seat is fixed at the bottom of the multiple fixed steps, and a storage plate with an adjustable tilt angle is movably installed on the top of the feeding seat.

4. An automatic assembly device for lead-out rods and insulating sleeves for a defrosting heater according to any one of claims 1-3, characterized in that, The translation cylinder is fixed on the frame by a vertical support. A guide rail parallel to the output direction of the translation cylinder is fixed on the vertical support. The counting sensor is fixed on the vertical support on the outer side of the end of the guide rail. A slide block that slides with the guide rail is fixed to the output end of the translation cylinder. The cylinder body of the lifting cylinder is fixedly connected to the slide block.

5. The automatic assembly device for lead-out rods and insulating sleeves for a defrosting heater according to claim 3, characterized in that, The surface of the feeding seat has a first slope that slopes downward toward one side of the multi-level fixed steps. A hinge groove is provided at the top of the slope of the feeding seat. The end of the storage plate is hinged to the hinge groove via a hinge shaft. The bottom of the storage plate is connected to the bottom plate of the material box via a lifting cylinder.

6. The automatic assembly device for lead-out rods and insulating sleeves for a defrosting heater according to claim 3, characterized in that, The multi-level fixed steps are provided with multiple vertical grooves along their length. The feeding seat is provided with sliding holes that correspond to and communicate with the vertical grooves. The multi-level feeding steps are composed of multiple multi-level feeding sub-steps that are slidably connected to the vertical grooves and sliding holes. The bottom of the multi-level feeding sub-steps is fixedly connected to the output end of the feeding cylinder via a base. The distance between the vertical surface of each step of the multi-level feeding sub-step and the lead-out rod storage platform is greater than the distance between the vertical surface of the corresponding multi-level fixed steps and the lead-out rod storage platform, and the difference between the two distances is not greater than the outer diameter of the lead-out rod.

7. An automatic assembly device for lead-out rods and insulating sleeves for a defrosting heater according to claim 3, 5, or 6, characterized in that, The push rod is connected to the output end of the push cylinder via an adjustment assembly, which is used to adjust the length of the push rod extending into the discharge trough. The material box has a movable side plate whose position is adjustable along the length direction of the multi-level fixed steps, and the position of the movable side plate is corresponding to the end of the push rod.

8. The automatic assembly device for lead-out rods and insulating sleeves for a defrosting heater according to claim 7, characterized in that, The adjustment assembly includes an adjustment seat and a positioning bolt. The adjustment seat has a through hole for the push rod to slide horizontally. The positioning bolt is threaded through the adjustment seat and locked into contact with the push rod. The lead-out rod storage platform is provided with a scale mark for marking the initial length of the push rod in the discharge trough.

9. An automatic assembly device for lead-out rods and insulating sleeves for a defrosting heater according to claim 7, characterized in that, One end of the movable side plate has a stepped portion that mates with the multi-level fixed steps, and the other end of the movable side plate is fixed with a buckle plate. There is a slot between the buckle plate and the movable side plate for the back plate of the material box to be inserted. The buckle plate is threaded with a locking bolt that abuts against the back plate of the material box.

10. An automatic assembly device for lead-out rods and insulating sleeves for a defrosting heater according to claim 5, characterized in that, The material bin is equipped with a lead-out rod detection sensor, and the insulating sleeve receiving seat is equipped with an insulating sleeve detection sensor. The lead-out rod detection sensor is fixedly installed on the side wall of the material bin above the storage plate and is used to sense the stacking height of the lead-out rods in the material bin. The insulating sleeve detection sensor passes through the insulating sleeve receiving seat and is connected to the arc-shaped receiving groove, and is used to sense the insulating sleeves entering the arc-shaped receiving groove.

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