Bolt feeding device and compressor upper cover production line

Abstract

The utility model discloses a bolt feeding device which comprises a machine base, a longitudinal lifting device, a mounting base, a transverse feeding device and a bolt discharging device, and the longitudinal lifting device is vertically arranged on the machine base and used for driving the transverse feeding device and the bolt discharging device on the mounting base to move up and down. The transverse feeding device is provided with a transverse feeding motor, a transverse feeding sliding base, a material taking lifting air cylinder, a material taking lifting sliding base, an overturning air cylinder and a bolt clamping jaw air cylinder. The transverse feeding device conveys bolts clamped by the bolt clamping jaw air cylinder to the bolt discharging device. The overturning air cylinder is easier to overturn, the requirement for the discharging space of the bolt discharging device is reduced, the longitudinal lifting device enables the bolt discharging device to be flush with the bolt welding machine, and the overall production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor production equipment, in particular to a bolt feeding device. Background Art

[0002] CN115156779A discloses a fully automatic welding production line for compressor upper cover, exhaust pipe and bolts. It includes a bolt feeding device, which has the following shortcomings during operation:

[0003] (1) The bolt lifting and feeding motor drives the lifting screw to rotate through the pulley transmission mechanism to make the bolt lifting and feeding slide seat. This results in a large device size.

[0004] (2) After the bolt lifting and feeding motor drives the bolt clamping claw cylinder to clamp the bolt, it needs to be away from the bolt material dividing slider before it can be turned over. Then, it needs to be moved down to be placed in the welding fixture, which requires a large discharge space and affects production efficiency. Utility Model Content

[0005] The utility model aims to provide a bolt feeding device which can improve production efficiency.

[0006] The purpose of the utility model is achieved in this way.

[0007] A bolt feeding device comprises a machine base, a longitudinal lifting device, a mounting seat, a transverse feeding device and a bolt discharging device.

[0008] The longitudinal lifting device is vertically arranged on the machine base, and is used to drive the transverse feeding device and the bolt discharge device on the mounting base to move up and down.

[0009] The transverse feeding device is provided with a transverse feeding motor, a transverse feeding slide, a material picking lifting cylinder, a material picking lifting slide, a flipping cylinder and a bolt clamping claw cylinder. The transverse feeding slide is horizontally slidably arranged on the mounting seat. The transverse feeding motor is arranged on the mounting seat and drives the transverse feeding slide to translate on the mounting seat through a synchronous belt. The material picking lifting slide slide slides up and down on the transverse feeding slide. The material picking lifting cylinder is arranged on the transverse feeding slide and drives the material picking lifting slide to slide up and down. The flipping cylinder is arranged on the material picking lifting slide. The bolt clamping claw cylinder is arranged on the rotating end of the flipping cylinder. The transverse feeding device sends the bolts clamped by the bolt clamping claw cylinder to the bolt discharge device.

[0010] The utility model makes it easier to turn over the turning cylinder, the bolt discharge device reduces the discharge space requirement, the longitudinal lifting device makes the bolt discharge device and the bolt welding machine flush, and the overall production efficiency is improved.

[0011] The above technical solution can be further improved as follows.

[0012] Furthermore, the longitudinal lifting device includes a longitudinal lifting motor and a longitudinal slide. The longitudinal slide is slidable up and down on the machine base. The longitudinal lifting motor drives the longitudinal slide to move up and down. The mounting seat is arranged on the top surface of the longitudinal slide. The longitudinal lifting motor is directly connected to the longitudinal slide, and the overall structure is more compact, reducing the size of the equipment.

[0013] Furthermore, the bolt discharge device includes a material clamping telescopic cylinder and a bolt positioning clamping claw cylinder, the bolt positioning clamping claw cylinder is arranged at the telescopic end of the material clamping telescopic cylinder, and the material clamping telescopic cylinder is arranged on the mounting seat. The bolt discharge device cooperates with the horizontal feeding device to improve the efficiency of bolt material collection and discharge, thereby improving production efficiency.

[0014] Furthermore, a compressor upper cover production line includes the above-mentioned bolt feeding device.

[0015] The utility model makes it easier to turn the turning cylinder, the bolt discharge device reduces the discharge space requirement, and the longitudinal lifting device makes the bolt discharge device and the bolt welding machine flush, thereby improving the overall production efficiency. The longitudinal lifting motor is directly connected to the longitudinal slide seat, and the overall structure is more compact, reducing the size of the equipment. The bolt discharge device and the horizontal feeding device cooperate to improve the efficiency of bolt material collection and discharge, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the compressor cover production line.

[0017] Figure 2 This is a schematic diagram of the structure of the cache material preparation line in Example 1.

[0018] Figure 3 for Figure 2 Schematic diagram of the internal structure of the buffer preparation line.

[0019] Figure 4 for Figure 3 Enlarged view of part A in the middle.

[0020] Figure 5 It is a structural schematic diagram of the exhaust pipe pre-assembly mechanism in the first embodiment.

[0021] Figure 6 for Figure 5 Schematic diagram of the structure of the middle and upper cover rotation alignment device and the exhaust pipe pre-installation device.

[0022] Figure 7 for Figure 5 Schematic diagram of the structure of the middle and upper cover rotation alignment device and the exhaust pipe pre-installation device (from another perspective).

[0023] Figure 8 for Figure 5 Front view schematic diagram of the middle upper cover rotation alignment device and the exhaust pipe pre-installation device.

[0024] Fig. 9 It is a structural schematic diagram of the bolt feeding device in Example 1.

[0025] Fig.10 for Fig. 9 Schematic diagram of the local structure.

[0026] Fig.11 for Fig.10 Enlarged view of part B in the middle.

[0027] Fig.12 for Fig.10 Enlarged view of part C in the middle. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Example 1, see Figure 1-12 As shown, the compressor upper cover production line includes a buffer preparation line 1, an exhaust pipe pre-assembly mechanism 2 and a bolt feeding mechanism 3.

[0030] See also Figure 1-4 As shown, the cache preparation line 1 includes a rack 100 and a plurality of feeder belts 110 laid flat on the top of the rack 100. Adjacent feeder belts 110 have opposite feeding directions. The rack 100 is provided with a guide at the end of the feeder belt 110. The guide enables the workpiece on the feeder belt 110 to move toward the adjacent feeder belt 110. There is a gap between the feeder belts 110. The rack 100 also includes a wear-resistant strip 120. The wear-resistant strip 120 is arranged between adjacent feeder belts 110. The wear-resistant strip 120 extends into the gap. The top surface of the wear-resistant strip 120 is flush with the top surface of the feeder belt 110. Adjacent feeder belts 110 are separated by the wear-resistant strip 120 to avoid mutual collision. The wear-resistant strip 120 does not affect the movement of the upper cover toward the adjacent feeder belt 110.

[0031] A partition 121 is provided on the top of the wear-resistant strip 120, and the partition 121 extends into the gap, and the top surface of the partition 121 is flush with the top surface of the feed belt 110. The partition is convenient to insert into the gap.

[0032] The partition 121 is arranged along the length direction of the wear strip 120 , and the partition 121 is placed at the center of the wear strip 120 in the width direction.

[0033] The feeding belt 110 includes a plate chain 111, a driving wheel 112 and a driven wheel 113. The inner surface of the plate chain 111 is provided with a convex position 114. The driving wheel 112 is provided with a concave position 115 meshing with the convex position 114 in the circumferential direction. The plate chain 111 is connected end to end and sleeved on the driving wheel 112 and the driven wheel 113. The rotation of the driving wheel 112 drives the plate chain 111 to rotate. Baffles 116 are provided on both sides of the driving wheel 112 to close the side openings of the concave position 115. The baffles 116 prevent the convex position 114 of the plate chain from detaching from the side of the concave position 115, and the feeding belt 110 runs stably and reliably.

[0034] The frame 100 is provided with a support plate 131 along the width direction of the feeding belt 110, and the wear-resistant strip 120 is placed on the support plate 131 to support the support plate chain 111. The two ends of the support plate 131 and the frame 100 are connected and fixed by a height adjustment device 130, and the height adjustment device 130 makes the top surface of the plate chain 111 rise and fall.

[0035] The height adjustment device 130 includes a fixing hole 132 and a fixing locking block 133 which are arranged along the height direction of the frame 100 . The fixing locking block 133 passes through the fixing hole 132 and is connected and fixed to the end of the supporting plate 131 .

[0036] The guide member includes a first guide plate 141 and a second guide plate 142, which are respectively placed at both ends of the feed belt 110, and are both provided with guide grooves, which enable the workpiece to move to the adjacent feed belt 110 in sequence along the width of the frame 100, and a protective strip 143 is provided on the side of the guide groove. The protective strip 143 prevents the upper cover from contacting with the guide groove, and protects the upper cover from being scratched.

[0037] The frame 100 is provided with a feeding motor 101, a first rotating shaft 102 and a second rotating shaft 103. The driving wheel 112 of the feeding belt 110 for forward feeding is arranged on the first rotating shaft 102, and the driven wheel 113 is arranged on the second rotating shaft 103. The driving wheel 112 of the feeding belt 110 for reverse feeding is arranged on the second rotating shaft 103, and the driven wheel 113 is arranged on the first rotating shaft 102. The feeding motor 101 synchronously drives the first rotating shaft 102 and the second rotating shaft 103 to rotate. The first rotating shaft 102 and the second rotating shaft 103 rotate in opposite directions. The first rotating shaft 102 and the second rotating shaft 103 drive the corresponding driving wheel 112 to rotate, and the driven wheel 113 on the first rotating shaft 102 and the second rotating shaft 103 rotates with the plate chain 111.

[0038] A plurality of compressor upper covers are manually placed on the cache material preparation line 1 , and the feeding belt 110 of the cache material preparation line 1 conveys the compressor upper covers one by one to the discharge port 104 of the cache material preparation line 1 .

[0039] See also Figure 1 , Figure 5-8 As shown, the exhaust pipe pre-installation mechanism 2 includes an upper cover rotation alignment device 200 , an exhaust pipe pre-installation device 210 , an exhaust pipe vibration feed tray 220 , a fixing seat 230 and a body 240 , and the fixing seat 230 is arranged on the body 240 .

[0040] The upper cover rotation and alignment device 200 includes a rotating seat 201, a chuck cylinder 202, a rotating shaft 203, a pneumatic rotary joint 204, and a rotating power motor 205. The rotating shaft 203 is vertically arranged on a fixed seat 230. The chuck cylinder 202 is fixed on the top of the rotating shaft 203. The rotating seat 201 is arranged on the top of the chuck cylinder 202 through a chuck. The rotating power motor 205 drives the rotating shaft 203 to rotate through a synchronous belt. The pneumatic rotary joint 204 is fixed in the fixed seat 230 and below the rotating shaft 203. The rotating end of the pneumatic rotary joint 204 is connected and fixed to the bottom of the rotating shaft 203. The rotating end of the pneumatic rotary joint 204 supplies air to the chuck cylinder 202. The vibration of the rotating power motor 205 will not interfere with the alignment of the upper cover on the rotating seat 201. At the same time, the pneumatic rotating joint 204 makes the air pipe and the rotating shaft 203 relatively still when the chuck cylinder 202 rotates, ensuring the safe use of the air pipe of the chuck cylinder 202. The pneumatic rotating joint 204 can also lock the rotating shaft 203 to ensure that the rotating seat 201 does not move after alignment, thereby improving production efficiency.

[0041] The fixed seat 230 is provided with a centering sensor 231 above the rotating seat 201, and the centering sensor 231 is used to detect whether the upper cover on the rotating seat 201 is rotated into place. The fixed seat 230 is provided with a positioning sensor 232 in the horizontal direction of the rotating seat 201, and the positioning sensor 232 is used to detect whether the top surface of the upper cover on the rotating seat 201 is flat. The alignment accuracy of the upper cover on the rotating seat is further improved.

[0042] The exhaust pipe pre-installation device 210 includes an upper cover positioning seat 211, an exhaust pipe material grabbing and translating seat 212, an exhaust pipe material grabbing and lifting seat 213, an exhaust pipe material grabbing and translating cylinder 214, an exhaust pipe material grabbing and lifting cylinder 215, an exhaust pipe clamping cylinder 216, an exhaust pipe translation motor 217, an exhaust pipe translation seat 218 and an exhaust pipe lifting cylinder 219.

[0043] The upper cover positioning seat 211 is arranged on the fixed seat 230, the exhaust pipe material grabbing and translating seat 212 is horizontally slidably arranged on the machine body 240, the exhaust pipe material grabbing and translating cylinder 214 is arranged on the machine body 240, and drives the exhaust pipe material grabbing and translating seat 212 to slide horizontally, the exhaust pipe material grabbing and lifting seat 213 is vertically slidably arranged on the exhaust pipe material grabbing and translating seat 212, the exhaust pipe material grabbing and lifting cylinder 215 is arranged on the exhaust pipe material grabbing and translating seat 212, and drives the exhaust pipe material grabbing and lifting seat 213 to slide up and down, and the exhaust pipe clamping cylinder 216 is fixed on the exhaust pipe material grabbing and lifting seat 213 to drive the clamping jaw to be tightened.

[0044] The exhaust pipe translation seat 218 is horizontally slidably arranged on the fixed seat 230, the exhaust pipe translation motor 217 is arranged on the fixed seat 230, and drives the exhaust pipe translation seat 218 to move horizontally through the synchronous belt, the exhaust pipe lifting cylinder 219 is arranged on the exhaust pipe translation seat 218, and is located below the upper cover positioning seat 211, and the upper cover positioning seat 211 is provided with a positioning block and a clearance hole, and the position of the clearance hole corresponds to the position of the cylinder rod of the exhaust pipe lifting cylinder 219. The exhaust pipe moves smoothly and at a faster speed, thereby improving production efficiency.

[0045] The upper cover conveying robot 20 is used to convey the compressor upper cover between the buffer preparation line 1, the upper cover rotation and alignment device 200, and the exhaust pipe pre-installation device 210.

[0046] The upper cover conveying robot 20 grabs the compressor upper cover of the discharge port 104 and places it on the rotating seat 201 of the upper cover rotation alignment device 200, and simultaneously grabs the compressor upper cover on the rotating seat 201 and places it on the upper cover positioning seat 211 of the exhaust pipe pre-installation device 210. Among them, the centering sensor 231 detects whether the rotation angle of the compressor upper cover of the rotating seat 201 is in place, and the placement sensor 232 detects whether the compressor upper cover of the rotating seat 201 is placed flat. The compressor upper cover is placed on the upper cover positioning seat 211 only after passing the inspection.

[0047] The exhaust pipe vibrating feeding plate 220 transports the exhaust pipe to the right place, the exhaust pipe grabbing translation cylinder 214 drives the exhaust pipe grabbing translation seat 212 to move to the exhaust pipe, the exhaust pipe grabbing lifting cylinder 215 drives the exhaust pipe grabbing lifting seat 213 to move to the upper part of the exhaust pipe, the exhaust pipe clamping cylinder 216 controls the clamping claw to clamp the upper part of the exhaust pipe and return to the original position, the cylinder rod of the exhaust pipe lifting cylinder 219 retracts downward, and the exhaust pipe translation motor 217 drives the exhaust pipe translation seat 218 to move from the upper cover positioning seat 211 to the exhaust pipe clamping cylinder 2 16, the cylinder rod of the exhaust pipe lifting cylinder 219 extends upward so that the top of the cylinder rod positions the lower part of the exhaust pipe, and the exhaust pipe clamping cylinder 216 releases the exhaust pipe and repeats the above action again. The cylinder rod of the exhaust pipe lifting cylinder 219 drives the exhaust pipe to move downward, and then the exhaust pipe translation motor 217 drives the exhaust pipe lifting cylinder 219 back to the top of the upper cover positioning seat 211 through the exhaust pipe translation seat 218, and the cylinder rod of the exhaust pipe lifting cylinder 219 drives the exhaust pipe to move upward and insert into the mounting hole of the compressor upper cover of the upper cover positioning seat 211.

[0048] See also Figure 1 , Figure 9-12 As shown, the bolt feeding mechanism 3 includes a bolt feeding device 300 and a bolt vibrating feeding tray 30 .

[0049] The bolt feeding device 300 includes a machine base 301, a longitudinal lifting device 310, a mounting base 302, a transverse feeding device 320 and a bolt discharging device 330.

[0050] The longitudinal lifting device 310 is vertically arranged on the machine base 301, and is used to drive the horizontal feeding device 320 and the bolt discharge device 330 on the mounting seat 302 to move up and down. The longitudinal lifting device 310 includes a longitudinal lifting motor 311 and a longitudinal slide 312. The longitudinal slide 312 is slidably arranged on the machine base 301. The longitudinal lifting motor 311 drives the longitudinal slide 312 to move up and down, and the mounting seat 302 is arranged on the top surface of the longitudinal slide 312. The longitudinal lifting motor 301 is directly connected to the longitudinal slide 302, and the overall structure is more compact, reducing the size of the equipment.

[0051] The transverse feeding device 320 is provided with a transverse feeding motor 321, a transverse feeding slide 322, a material picking lifting cylinder 323, a material picking lifting slide 324, a flip cylinder 325 and a bolt clamping claw cylinder 326. The transverse feeding slide 322 is horizontally slidably arranged on the mounting seat 302, the transverse feeding motor 321 is arranged on the mounting seat 302, and drives the transverse feeding slide 322 to translate on the mounting seat 302 through a synchronous belt. The material picking lifting slide 324 is slidably arranged on the transverse feeding slide 322, the material picking lifting cylinder 323 is arranged on the transverse feeding slide 322, and drives the material picking lifting slide 324 to slide up and down, the flip cylinder 325 is arranged on the material picking lifting slide 324, and the bolt clamping claw cylinder 326 is arranged on the rotating end of the flip cylinder 325. The transverse feeding device 320 sends the bolts clamped by the bolt clamping claw cylinder 326 to the bolt discharge device 330. The turning cylinder 325 is easier to turn, and the longitudinal lifting device 310 makes the bolt discharge device and the bolt welding machine 330 flush, thereby improving the overall production efficiency.

[0052] The bolt discharge device 330 includes a material clamping telescopic cylinder 331 and a bolt positioning clamping claw cylinder 332. The bolt positioning clamping claw cylinder 332 is arranged at the telescopic end of the material clamping telescopic cylinder 331, and the material clamping telescopic cylinder 331 is arranged on the mounting seat 302. The bolt discharge device 330 reduces the discharge space requirement, and the bolt discharge device 330 cooperates with the horizontal feeding device 320 to improve the efficiency of bolt material collection and discharge, thereby improving production efficiency.

[0053] The longitudinal lifting device 310 drives the mounting seat 302 to move up and down in advance, so that the bolt discharge device 330 and the bolt welding machine 7 are flush with each other in horizontal position. The bolt vibrating feed tray 30 transports the bolts with the nuts facing upward to the bolt discharge position of the bolt feeding device 300. The transverse feeding motor 321 drives the transverse feeding slide 322 to move to the bolt discharge position, and the material picking lifting cylinder 323 drives the material picking lifting slide 324 to approach the bolt discharge position from top to bottom, so that the clamping claw of the bolt clamping cylinder 326 clamps the nut of the bolt in the bolt discharge position, and the material picking lifting cylinder 323 drives the material picking lifting slide 324 to move upward by a preset distance (this preset distance is greater than the bolt length), and the flip cylinder 325 drives the bolt clamping claw cylinder 326 to achieve 180° flipping, so that the nut of the bolt faces downward. The lateral feeding motor 321 drives the lateral feeding slide 322 to move toward the bolt discharge device 330. When the bolt clamping claw cylinder 326 drives the bolt to move below the bolt positioning clamping claw cylinder 332, the clamping telescopic cylinder 331 extends to drive the bolt positioning clamping claw cylinder 332 to move forward, and the clamping claw of the bolt positioning clamping claw cylinder 332 just clamps the screw of the bolt, and the clamping claw of the bolt clamping claw cylinder 326 loosens the nut of the bolt, and the clamping telescopic cylinder 331 drives the bolt positioning clamping claw cylinder 332 to retract, and the bolt positioning clamping claw cylinder 332 loosens the bolt, and the bolt is placed on the compressor cover of the bolt welding machine 7. The lateral feeding motor 321 drives the lateral feeding slide 322 to move back, so that the bolt clamping claw cylinder 326 repeats the above action to clamp the next bolt.

[0054] A brief description of the working process of the compressor cover production line.

[0055] Cache material preparation line 1 conveys the compressor upper cover.

[0056] The upper cover rotation and alignment device 200 rotates and positions the upper cover of the compressor.

[0057] The exhaust pipe vibrating feeding tray 220 conveys the exhaust pipe to the exhaust pipe pre-assembling device 210 .

[0058] The exhaust pipe pre-assembly device 210 pre-assembles the compressor upper cover and the exhaust pipe.

[0059] The first transport robot 4 delivers the compressor upper cover with the exhaust pipe pre-assembled to the exhaust pipe welding machine 5 for welding.

[0060] The exhaust pipe welding machine 5 welds the compressor upper cover and the exhaust pipe into one body.

[0061] The second transport robot 6 delivers the compressor upper cover with the exhaust pipe welded to the bolt welding machine 7 .

[0062] The bolt vibrating feed tray 30 conveys the bolts to the bolt feeding device 300 .

[0063] The bolt feeding device 300 conveys the bolts to the compressor upper cover of the bolt welding machine 7 .

[0064] The bolt welding machine 7 welds the compressor upper cover and the bolts into one body.

[0065] The third transport robot 8 transports the finished compressor upper cover to the upper cover discharging line 9 .

[0066] The upper cover discharging line 9 delivers the finished upper cover of the compressor.

[0067] Among them, the exhaust pipe vibration feed tray 220, the first handling robot 4, the exhaust pipe welding machine 5, the second handling robot 6, the bolt vibration feed tray 30, the bolt welding machine 7, the third handling robot 8 and the upper cover discharge line 9 are existing technologies and will not be described in detail.

[0068] As used in this utility model, the terms "first", "second", etc. do not indicate any order, quantity or importance, but are only used to distinguish. As used in this utility model, the terms "one", "a kind", etc. do not indicate a limit on quantity, but indicate the existence of at least one of the mentioned objects. As used in this utility model, the terms indicating orientation or position, such as "top", "bottom", "side", "longitudinal", "lateral", "middle", "center", "outside", "inside", "horizontal", "vertical", "left", "right", "above", "below", etc., are intended to reflect relative positions rather than absolute positions.

[0069] The above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A bolt feeding device, comprising a machine base (301), a longitudinal lifting device (310), a mounting base (302), and a transverse feeding device (320), wherein: It also includes a bolt discharge device (330), The longitudinal lifting device (310) is vertically arranged on the machine base (301) and is used to drive the transverse feeding device (320) and the bolt discharge device (330) on the mounting base (302) to move up and down. The transverse feeding device (320) is provided with a transverse feeding motor (321), a transverse feeding slide (322), a material picking lifting cylinder (323), a material picking lifting slide (324), a flip cylinder (325) and a bolt clamping claw cylinder (326). The transverse feeding slide (322) is horizontally slidably arranged on the mounting seat (302). The transverse feeding motor (321) is arranged on the mounting seat (302) and drives the transverse feeding slide (322) to move horizontally on the mounting seat (302) through a synchronous belt. The lifting slide (324) is slidable up and down on the transverse feeding slide (322), the material picking lifting cylinder (323) is arranged on the transverse feeding slide (322) and drives the material picking lifting slide (324) to slide up and down, the turning cylinder (325) is arranged on the material picking lifting slide (324), the bolt clamping cylinder (326) is arranged on the rotating end of the turning cylinder (325), and the transverse feeding device (320) sends the bolts clamped by the bolt clamping cylinder (326) to the bolt discharge device (330).

2. The bolt feeding device according to claim 1, characterized in that: The longitudinal lifting device (310) comprises a longitudinal lifting motor (311) and a longitudinal slide (312). The longitudinal slide (312) is slidably disposed on the machine base (301) up and down. The longitudinal lifting motor (311) drives the longitudinal slide (312) to move up and down. The mounting seat (302) is disposed on the top surface of the longitudinal slide (312).

3. The bolt feeding device according to claim 1, characterized in that: The bolt discharge device (330) comprises a material clamping telescopic cylinder (331) and a bolt positioning clamping claw cylinder (332); the bolt positioning clamping claw cylinder (332) is arranged at the telescopic end of the material clamping telescopic cylinder (331); and the material clamping telescopic cylinder (331) is arranged on the mounting seat (302).

4. A compressor cover production line, characterized in that: It comprises the bolt feeding device (300) described in any one of claims 1 to 3.

Images