Automatic screw locking line
By designing automatic lock screw wires, the automatic transmission, positioning and locking of vehicles and blanks are realized, which solves the problems of high working strength and low efficiency when manually fixing blanks in the prior art, and improves the locking efficiency and accuracy.
Patent Information
- Application Number
- CN202421528287.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-01
AI Technical Summary
In the prior art, before processing the mobile phone frame blank, it is necessary to manually fix the aluminum extruded U-blank to the vehicle, resulting in high working strength, low efficiency and poor positioning accuracy for workers.
An automatic lock screw wire is designed, including a conveying streamline, a tray, a barrier module, a lifting module, a stop module, a positioning mechanism and a locking module, to realize the automatic transmission, positioning and locking of vehicles and blanks.
It realizes the automated processing of vehicles and blanks, reduces labor intensity, improves locking efficiency and accuracy, and ensures high yield batch locking screw operation.
Smart Images
Figure CN222791135U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of screw locking, and in particular relates to an automatic screw locking line. Background Art
[0002] Before the mobile phone frame blank is processed by CNC machine tool, two pieces of aluminum extruded U-shaped blanks need to be loaded into the carrier, and the blanks need to be positioned relative to the carrier and the pressure plate screws on the carrier are locked to clamp the blanks.
[0003] like Figure 1 As shown, the carrier 1 includes a carrier body 11, pressure plates 12 on both sides of the carrier body 11 and pressure plate screws 13 threadedly connected to the pressure plates 12. In addition, a plurality of positioning holes 111 are evenly distributed on the carrier body 11 to facilitate accurate positioning of the carrier 1 on the CNC machining jig. Two tightening holes 112 are also provided on the carrier body 11, and the pull-down fixing mechanism on the CNC machining jig is inserted into the tightening holes 112 and fixes the carrier 1 on the CNC machining jig.
[0004] In the existing process, two blanks 2 need to be clamped between two pressing plates 12, and the pressing plate screws 13 on the pressing plates 12 are manually tightened one by one to fix the blanks 2. In this process, since the manual operation requires the screwdriver head to be held tightly for a long time and the operation is repeated many times, the workers have high work intensity. In addition, there are also problems such as short average working time, low working efficiency, and poor blank positioning accuracy.
[0005] In the prior art, there are also automatic screw-locking robots. In this technology, it is necessary to manually take out the carrier of pre-loaded blanks from the pallet in the streamline, and put it into the clamping module on the streamline side for positioning, and then it is locked by the automatic screw-locking robot. The carrier with the locked pressure plate screws is then loaded onto the tray and transferred to CNC processing. In this process, manpower is required to frequently take and place the carrier, the manual operation time is long, the number of operations is large, the operation intensity is high, and the average operating time is short, and the operation efficiency is low. Utility Model Content
[0006] In order to solve the technical problems existing in the prior art, the present application provides an automatic screw locking line which can automatically lock screws directly on the streamline and has low labor intensity, high locking efficiency and high locking yield.
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A screw locking automatic line, comprising a workbench and:
[0009] Conveying streamlines: including an inflow conveying streamline and an outflow conveying streamline respectively arranged on both sides of the workbench, and a locking conveying streamline with a hollow structure in the middle arranged on the workbench;
[0010] Tray: used to place carriers and can be transported on the conveying line;
[0011] Blocking module: arranged on the workbench and used to block the pallet behind the locking station;
[0012] Lifting module: arranged on the workbench in front of the blocking module and used for lifting the tray;
[0013] Stop module: It is arranged on the workbench in front of the lifting module and is used to stop the pallet at the locking station;
[0014] Positioning mechanism: comprising a support plate fixedly connected to the lifting module, a positioning plate horizontally arranged on the support plate, and a positioning cylinder fixedly connected to the positioning plate for side positioning of the blank;
[0015] The locking module comprises a support frame fixedly connected to a workbench at a locking station, a screw transmission mechanism vertically arranged on the support frame, and a locking screw module fixedly connected to a moving part of the screw transmission mechanism.
[0016] Preferably, a slot matching the carrier and the blank is provided on the upper end surface of the pallet, and a pallet through hole is provided at the bottom of the slot; the lifting module includes a lifting cylinder fixedly connected to the workbench and a lifting plate fixedly connected to the guide rod of the lifting cylinder; a clamping plate is fixedly connected to the upper end surface of the lifting plate, and the clamping plate can be clamped in the pallet through hole under the drive of the lifting cylinder.
[0017] Preferably, a coarse positioning pin matching the tightening hole is vertically fixedly embedded in the upper end surface of the clamping plate, and the coarse positioning pin can be inserted into the tightening hole.
[0018] Preferably, a precision positioning pin matching the positioning hole is vertically fixedly embedded on the positioning plate, and the precision positioning pin can be inserted into the positioning hole.
[0019] Preferably, a plurality of hydraulic buffer dampers are vertically fixedly embedded on the positioning plate, and when the lifting module lifts the tray and the blank, the carrier and the blank can respectively abut against the corresponding hydraulic buffer dampers.
[0020] Preferably, the screw locking module includes a fixed bracket, a servo motor fixedly connected vertically downwardly at the upper part of the fixed bracket, a connecting head rotatably connected at the lower part of the fixed bracket, a universal joint coupling with the servo motor output end and the connecting head respectively connected at both ends, and a screwdriver head detachably mounted at the lower part of the connecting head.
[0021] Preferably, an avoidance through hole is provided on the positioning plate, a guide plate is fixedly connected to the upper end surface of the positioning plate at the avoidance through hole, a guide through hole is provided on the guide plate, and the screwdriver head can be rotatably inserted into the guide through hole.
[0022] Preferably, a proximity sensor is fixedly connected to the upper end surface of the workbench between the blocking module and the lifting module.
[0023] Preferably, a fixed block is fixedly connected to the upper end surface of the positioning plate, the fixed block extends to above the avoidance through hole, and a mounting plate is fixedly connected to the upper end surface of the guide plate, and the hydraulic buffer damper is respectively fixedly embedded on the fixed block above the avoidance through hole and on the mounting plate; the positioning cylinder is fixedly connected to the upper end surface of the fixed block, and a slide plate is fixedly connected to the positioning cylinder guide rod, which is slidably penetrated in the fixed block and can abut against the blank.
[0024] Compared with the prior art, the beneficial effects of the utility model are:
[0025] The utility model realizes the transmission of a pallet carrying a carrier by setting a transmission line; realizes the rough positioning and transmission of the carrier by setting a pallet; blocks the pallet behind the locking station by setting a blocking module, and stops the pallet in front of the locking station by setting a stopping module; realizes the rough positioning, fine positioning and lateral positioning of the carrier by the positioning mechanism while lifting the pallet and the carrier by setting a lifting module and automatically locks the screws on the carrier that has been positioned and fixed at the locking station by setting a locking module; the utility model can realize automatic transmission, automatic blocking and stopping, automatic lifting and positioning, and automatic screw locking of the pallet and the carrier. Compared with the prior art, the operator does not need to frequently take and place the carrier, and can automatically lock the screws directly on the transmission line, so that batch screw locking can be performed with low labor intensity, high locking efficiency, and high locking accuracy and yield. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural schematic diagram of a carrier and a tray of the utility model.
[0027] Figure 2 It is a schematic diagram of the overall structure of the utility model.
[0028] Figure 3 This is a schematic diagram of the structure of the utility model after removing the inflow transmission streamline and the outflow transmission streamline.
[0029] Figure 4 It is a schematic diagram of the connection structure of two groups of blocking modules, a lifting module, a stopping module and a positioning mechanism of the utility model.
[0030] Figure 5It is a schematic diagram of the connection structure of a single blocking module, a lifting module, a stopping module and a positioning mechanism of the utility model.
[0031] Figure 6 For Figure 5 Schematic diagram of the side structure based on the reference.
[0032] Figure 7 It is a schematic diagram of the connection structure of the blocking module, the lifting module and the stopping module of the utility model.
[0033] Figure 8 It is a structural schematic diagram of the positioning mechanism of the utility model.
[0034] Fig. 9 This is a structural schematic diagram of the locking module of the utility model from the first perspective.
[0035] Fig.10 This is a structural schematic diagram of the locking module of the utility model from a second viewing angle.
[0036] Fig.11 It is a structural schematic diagram of the screw locking module of the utility model.
[0037] In the figure: 1, carrier, 11, carrier body, 111, positioning hole, 112, tightening hole, 12, pressure plate, 13, pressure plate screw,
[0038] 2. Billet,
[0039] 3. Workbench, 31. Inflow conveyor line, 32. Outflow conveyor line, 33. Locking conveyor line, 34. Locking station,
[0040] 4. Tray, 41. Card slot, 42. Tray through hole, 43. Stop slot,
[0041] 5. Blocking module, 51. Blocking cylinder, 52. Blocking plate, 53. Proximity sensor,
[0042] 6. Lifting module, 61. Lifting cylinder, 62. Lifting plate, 63. Card plate, 64. Coarse positioning pin,
[0043] 7. Stop module, 71. Stop cylinder, 72. Sliding rack, 73. Sliding block,
[0044] 8. Positioning mechanism, 81. Support plate, 82. Positioning plate, 821. Avoidance through hole, 83. Positioning cylinder, 84. Guide plate, 841. Guide through hole, 85. Mounting plate, 851. Precision positioning pin, 86. Fixing block, 87. Slide plate, 88. Hydraulic buffer damper,
[0045] 9. Locking module, 91. Support frame, 92. Screw transmission mechanism, 93. Screw locking module, 931. Fixed bracket, 932. Servo motor, 933. Connector, 934. Universal joint coupling, 935. Screwdriver head. DETAILED DESCRIPTION
[0046] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0047] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Example
[0048] See attached Figure 2 , 3 As shown, a screw locking automatic line includes a workbench 3, a conveying line, a tray 4 for placing a carrier 1 and which can be conveyed on the conveying line, a blocking module 5 for blocking the tray 4 behind the locking station, a lifting module 6 for lifting the tray 4, a stopping module 7 for stopping the tray 4 at the locking station, a positioning mechanism 8 for positioning the carrier 1 and the blank 2 thereon, and a locking module 9 for automatically locking screws on the carrier 1 that has been lifted, positioned and fixed.
[0049] It should be noted that, in this embodiment, the "locking station" is the place where the tray 4 and the carrier 1 are lifted by the lifting module 6, that is, the place where the locking module 9 automatically locks the pressure plate screws 13 on the carrier 1; Figure 2 As described above, the conveying flow line and the conveying direction of the pallet 4 are from left to right, and the “behind the locking station” refers to the side that has not entered the locking station 34 during the conveying process of the pallet 4 , that is, the left side of the locking station 34 .
[0050] The conveying streamlines include an inflow conveying streamline 31 and an outflow conveying streamline 32 respectively arranged on both sides of the workbench 3, and a locking conveying streamline 33 with a hollow structure in the middle fixedly installed on the upper end surface of the workbench 3. Specifically, the inflow conveying streamline 31 and the outflow conveying streamline 32 can be existing roller chain streamline structures, and the locking conveying streamline 33 is an existing narrow belt streamline structure with two widths of the inflow conveying streamline 31 and the outflow conveying streamline 32 of the roller chain streamline structure.
[0051] See also Figure 1 As shown, a slot 41 matching the carrier 1 and the blank 2 is provided on the upper end surface of the tray 4, and the carrier 1 pre-loaded with the blank 2 can be detachably mounted in the slot 41. A tray through hole 42 of a square structure is provided at the bottom of the slot 41. In addition, in order to facilitate the blocking module 5 and the stopping module 7 to stop the tray 4, stopping slots 43 are provided on both sides of the tray 4 along the conveying direction.
[0052] See also Figure 4 , 5 As shown in Figures 6 and 7, the blocking module 5, the lifting module 6 and the stopping module 7 are fixedly connected in sequence to the middle parts of the two belts of the locking conveying line 33. Specifically, the blocking module 5 includes a blocking cylinder 51 vertically fixedly connected to the end surface of the workbench by bolts, and a blocking plate 52 is horizontally fixedly connected to the guide rod of the blocking cylinder 51. When the guide rod of the blocking cylinder 51 is extended, the blocking plate 52 can be clamped in the corresponding stopping groove 43 to block the transmission of the pallet 4.
[0053] A lifting module 6 is arranged on the workbench 3 in front of the blocking module 5, and the lifting module 6 includes a lifting cylinder 61 vertically fixedly connected to the workbench 3 by bolts, and a lifting plate 62 fixedly connected to the guide rod of the lifting cylinder 61 by bolts. The middle part of the lifting plate 62 protrudes upward to form a protrusion, and a clamping plate 63 is horizontally fixedly connected to the upper end surface of the protrusion of the lifting plate 62 by bolts. The clamping plate 63 can be clamped in the tray through hole 42 under the drive of the lifting cylinder 61 to facilitate the assembly and positioning of the tray 4. At this time, the upper end surfaces on both sides of the lifting plate 62 abut against the lower end surface of the tray 4, thereby improving the stability of the tray 4 when lifting.
[0054] A rough positioning pin 64 matching the tensioning hole 112 is vertically fixed and embedded on the upper end surface of the clamping plate 63. When the guide rod of the lifting cylinder 61 is extended, the rough positioning pin 64 can be driven to rise and pass through the tensioning hole 112 above the tray through hole 42, thereby roughly positioning the carrier 1.
[0055] The stop module 7 is arranged on the workbench 3 in front of the lifting module 6. The stop module 7 includes a stop cylinder 71 vertically fixedly connected to the upper end surface of the workbench 3 by bolts, a sliding frame 72 fixedly connected to the guide rod of the stop cylinder 71, and a sliding block 73 fixedly connected to the upper end surface of the workbench 3 by bolts. The sliding frame 72 can be vertically slidably arranged in the sliding block 73. When the guide rod of the stop cylinder 71 is extended, the upper part of the sliding frame 72 can be clamped in the corresponding stop groove 43 to block the conveyance of the tray 4.
[0056] Furthermore, in order to improve the automation level of the pallet 3 transmission, a proximity sensor 53 is fixedly installed at the corresponding position of the upper end surface of the workbench 3 between the blocking module 5 and the lifting module 6. When the proximity sensor 53 detects that a pallet 4 is transmitted, the controller controls the stopping module 7 to stop the pallet 4 above the lifting module 6 and to stop the pallet 4 behind the blocking module 5, so as to prevent the pallets 4 from piling up at the locking station.
[0057] See also Figure 5 , 8 As shown, a positioning mechanism 8 is provided at the lifting module 6, i.e., the locking station 34. The positioning mechanism 8 includes a support plate 81 fixedly connected to the upper end surface of the outer workbench 3 of the lifting module 6 by bolts, a positioning plate 82 horizontally fixedly installed on the support plate 91 by bolts, and a positioning cylinder 83 fixedly connected to the positioning plate 82 by bolts for side positioning of the blank 2.
[0058] Specifically, an avoidance through hole 821 is provided in the middle of the positioning plate 82, and a guide plate 84 is fixedly connected to the upper end surface of the positioning plate 82 at the avoidance through hole 821 by bolts. The guide plate 84 is arranged perpendicular to the conveying direction of the tray, and a guide through hole 841 is provided on the guide plate 84. The screwdriver head 935 described below can be rotatably inserted into the guide through hole 841. A mounting plate 85 is fixedly connected to the upper end surface of the guide plate 84 by bolts, and a precision positioning pin 851 matching the positioning hole 111 is vertically fixedly embedded on the positioning plate 82. When the carrier 1 is lifted, the precision positioning pin 851 can be inserted into the positioning hole 111, thereby precisely positioning the carrier 1.
[0059] In addition, a fixing block 86 is fixedly connected to the upper end surface of the positioning plate 82 by bolts, and the fixing block 86 extends to the upper end surface of the avoidance through hole 821. The positioning cylinder 83 is fixedly installed on the upper end surface of the fixing block 86 by bolts, and a slide plate 87 is fixedly connected to the guide rod of the positioning cylinder 83, which is slidably arranged in the fixing block 86 and can abut against the blank 2. The slide plate 87 extends to the lower side of the avoidance through hole 821. When the carrier 1 and the blank 2 are lifted, the slide plate 87 abuts against the side of the blank 2 under the drive of the positioning cylinder 83, thereby positioning the blank 2 laterally.
[0060] Furthermore, in order to buffer and fix the carrier 1 and the blank 2 in the vertical direction, a hydraulic buffer damper 88 is vertically fixed and embedded on the fixing block 86 above the avoidance through hole 821 and the mounting plate 85. The hydraulic buffer damper 88 can be the existing AirTac hydraulic buffer damper ACA1007. When the lifting module 6 lifts the carrier 1 and the blank 2, the carrier 1 and the blank 3 can respectively abut against the corresponding hydraulic buffer damper 88.
[0061] See also Fig. 9 , 10 As shown in Figures 1 and 11, the locking module 9 is arranged at the lifting module 6, i.e., the locking station 34. The locking module 9 includes a support frame 91 fixedly connected to the upper end surface of the workbench 3 at the locking station 34 by bolts, a screw transmission mechanism 92 vertically arranged on the support frame 91, and a screw locking module 93 fixedly connected to the moving part of the screw transmission mechanism 92. The screw transmission mechanism 92 can select an existing screw transmission structure driven by a motor, and the moving part of the screw transmission mechanism 92 is engaged with the corresponding screw, and the screw is driven to rotate by the motor of the screw transmission mechanism 92, thereby driving the screw locking module 93 to move up and down.
[0062] The screw locking module 93 includes a fixed bracket 931 fixedly mounted on the support frame 91 by bolts, a servo motor 932 fixedly mounted vertically downward by bolts on the upper part of the fixed bracket 931, a connector 933 rotatably connected to the lower part of the fixed bracket 931, a universal joint coupling 934 whose two ends are respectively connected to the output end of the servo motor 932 and the connector 933, and a screwdriver head 935 detachably clamped at the lower part of the connector 933. Among them, the connector 933 and the universal joint coupling 934 can use existing technology, as long as the servo motor 932 can drive the universal joint coupling 934 and the screwdriver head 935 to rotate. In this embodiment, according to the number of pressure plate screws 13 to be locked, a total of six groups of servo motors 932, universal joint couplings 934, connectors 933 and screwdriver heads 935 are correspondingly provided.
[0063] In this embodiment, in order to improve the overall locking efficiency, the automatic screw locking line can be designed as a double-channel structure, that is, two groups of conveying streamlines are arranged in parallel at the workbench 3, and each group of conveying streamlines is correspondingly provided with a blocking module 5, a lifting module 6, a stop module 7, a positioning mechanism 8 and a locking module 9. The pallet 4, the carrier 1, and the blank 2 can be conveyed and the pressure plate screws 13 on the carrier 1 can be locked on each group of conveying streamlines.
[0064] The working process of the embodiment of the utility model is as follows:
[0065] 1. The blanks 2 are pre-loaded in batches in the carrier 1 and placed in the slots 41 of the tray 4 and conveyed forward through the flow conveying line 31;
[0066] 2. When the pallet 4 and the carrier 1 flow through the locking station 34 at the locking conveying line 33, the proximity sensor 53 transmits a control signal to the controller, and the controller controls the guide rod of the blocking cylinder 51 to extend to stop the pallet 4 behind the locking station 34; the controller controls the guide rod of the stopping cylinder 71 in front of the locking station 24 to extend to stop the pallet 4 at the locking station 34;
[0067] 3. The controller controls the guide rod of the lifting cylinder 61 to extend, and makes the card plate 63 clamped in the through hole 42 of the tray, and the rough positioning pin 64 penetrates the tensioning hole 112 on the carrier 1, thereby completing the rough positioning of the carrier 1; the lifting cylinder 61 lifts the tray 4 together with the carrier 1 upward until it crosses over the top of the locking and conveying flow line 33, so that the fine positioning pin 851 penetrates the positioning hole 111, and the upper end surface of the carrier 1 abuts against the lower end surface of the positioning plate 82, thereby completing the fine positioning of the carrier 1. In this process, the hydraulic buffer damper 88 buffers the blank 2 and the carrier 1 respectively; the controller controls the guide rod of the positioning cylinder 83 to extend so that the slide plate 87 abuts against the side of the blank 2, thereby completing the positioning and relative fixation of the carrier 1 and the blank 2;
[0068] 4. The screw transmission mechanism 92 drives the screw locking module 93 to move downward. Each servo motor 932 on the screw locking module 93 increases the torque through the reducer and uses the torque control mode for locking. The torque is transmitted to the screwdriver head 935 below which is elastically preloaded and concentric with the pressure plate screw 13 on the carrier 1 through the universal joint coupling 934 below. During the slow descent of the screw locking module 93, the screwdriver head 935 rotates slowly, and after it is engaged with the pressure plate screw 13, the servo motor 932 stops rotating after it reaches the set torque.
[0069] 5. After all the platen screws 13 are locked, the screw transmission mechanism 92 drives the locking screw module 93 to quickly lift upward, and the positioning cylinder 83, the lifting cylinder 61, the stop module 7 and the blocking module 5 are reset in sequence. The locked carrier 1 and the pallet 4 flow through the locking conveying line 33 to the outflow conveying line 32 for collection; when there is a carrier 1 at the locking station 34, the rear blocking module 5 pauses the subsequent carrier 1 outside the locking station 34, and when the front carrier 1 flows out, it releases a carrier 1 and continues to stop the rear carrier 1. Prevent the locking station 34 from interference and congestion; the above operation process can be repeated.
[0070] In this process, the connection method and control principle between the controller and the transmission streamline, blocking module 5, lifting module 6, stop module 7, positioning mechanism 8, and locking module 9 are all existing technologies and will not be repeated here, as long as they can meet the above-mentioned working process.
[0071] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A screw locking automatic line, including a workbench, characterized in that: Also includes: Conveying streamlines: including an inflow conveying streamline and an outflow conveying streamline respectively arranged on both sides of the workbench, and a locking conveying streamline with a hollow structure in the middle arranged on the workbench; Tray: used to place carriers and can be transported on the conveying line; Blocking module: arranged on the workbench and used to block the pallet behind the locking station; Lifting module: arranged on the workbench in front of the blocking module and used for lifting the tray; Stop module: It is arranged on the workbench in front of the lifting module and is used to stop the pallet at the locking station; Positioning mechanism: comprising a support plate fixedly connected to the lifting module, a positioning plate horizontally arranged on the support plate, and a positioning cylinder fixedly connected to the positioning plate for side positioning of the blank; The locking module comprises a support frame fixedly connected to a workbench at a locking station, a screw transmission mechanism vertically arranged on the support frame, and a locking screw module fixedly connected to a moving part of the screw transmission mechanism.
2. According to claim 1, a screw locking automatic line is characterized by: A slot matching the carrier and the blank is provided on the upper end surface of the pallet, and a pallet through hole is provided at the bottom of the slot; the lifting module includes a lifting cylinder fixedly connected to the workbench and a lifting plate fixedly connected to the guide rod of the lifting cylinder; a clamping plate is fixedly connected to the upper end surface of the lifting plate, and the clamping plate can be clamped in the pallet through hole under the drive of the lifting cylinder.
3. According to claim 2, the automatic screw locking line is characterized by: A coarse positioning pin matching the tightening hole is vertically fixedly embedded on the upper surface of the clamping plate, and the coarse positioning pin can be inserted into the tightening hole.
4. According to claim 1, the automatic screw locking line is characterized by: A precision positioning pin matching the positioning hole is vertically fixedly embedded in the positioning plate, and the precision positioning pin can be inserted into the positioning hole.
5. According to claim 1, the automatic screw locking line is characterized by: A plurality of hydraulic buffer dampers are vertically fixed and embedded on the positioning plate. When the lifting module lifts the tray and the blank, the carrier and the blank can respectively abut against the corresponding hydraulic buffer dampers.
6. According to claim 5, the automatic screw locking line is characterized by: The screw locking module includes a fixed bracket, a servo motor fixedly connected vertically downward on the upper part of the fixed bracket, a connecting head rotatably connected at the lower part of the fixed bracket, a universal joint coupling with two ends respectively connected to the output end of the servo motor and the connecting head, and a screwdriver head detachably mounted at the lower part of the connecting head.
7. According to claim 6, the automatic screw locking line is characterized by: An avoidance through hole is provided on the positioning plate, a guide plate is fixedly connected to the upper end surface of the positioning plate at the avoidance through hole, a guide through hole is provided on the guide plate, and the screwdriver head can be rotatably inserted into the guide through hole.
8. According to claim 1, the automatic screw locking line is characterized by: A proximity sensor is fixedly connected to the end surface of the workbench between the blocking module and the lifting module.
9. According to claim 7, the automatic screw locking line is characterized by: A fixed block is fixedly connected to the upper end surface of the positioning plate, and the fixed block extends to above the avoidance through hole. A mounting plate is fixedly connected to the upper end surface of the guide plate, and the hydraulic buffer damper is respectively fixedly embedded on the fixed block above the avoidance through hole and on the mounting plate; the positioning cylinder is fixedly connected to the upper end surface of the fixed block, and a slide plate is fixedly connected to the positioning cylinder guide rod, which is slidably inserted in the fixed block and can abut against the blank.