Automatic assembling equipment for production of gas spring piston rod joint

Abstract

The invention relates to the technical field of gas springs, in particular to automatic assembly equipment for gas spring piston rod joint production, which is characterized in that a first conveying belt is arranged on a rack, a rotating seat is movably arranged on the first conveying belt, and a plurality of movable blocks are slidably arranged on the rotating seat; the multiple movable blocks are combined to form a fixing cylinder with the middle provided with a cavity used for containing and limiting the air spring, synchronous rods are arranged on the multiple movable blocks in a sliding mode, clamping blocks used for clamping a piston rod are arranged on the synchronous rods in a sliding mode, and a guide plate used for pressing the air spring to incline is arranged on the machine frame. The gas spring is compressed through the guide plate, when the gas spring is compressed to the limit, the clamping block clamps the part, still located on the outer side of the pressure cylinder, of the piston rod, the part does not enter the pressure cylinder and cannot be impregnated by oil gas, the piston rod is conveniently clamped by the clamping block to limit rotation of the piston rod, the synchronous rod is unlocked, and the piston rod can move in the vertical direction; and a worker can conveniently mount the spherical joint on the piston rod.

Description

Technical Field

[0001] The invention relates to the technical field of gas springs, and in particular to automatic assembly equipment for producing gas spring piston rod joints. Background Art

[0002] Gas spring is an industrial accessory that can perform functions such as support, cushioning, braking, height adjustment and angle adjustment.

[0003] According to the publication (announcement) number CN114905252A, the publication (announcement) date is 2022-08-16, and a gas spring assembly production equipment is disclosed, including: a frame, which has a bearing platform; a core rod feeding assembly, which has a lifting mechanism driven by a first power component, and the lifting mechanism can transfer the core rod from a low place to a high place; an outer sleeve chamfering assembly, which has a first horizontal conveying belt: an automatic assembly assembly, which has a placement platform connected to the lifting mechanism, a core rod vertical turning mechanism located on one side of the placement platform, a second horizontal conveying belt connected to the rolling oil mechanism, an outer sleeve vertical turning mechanism and a press-fitting mechanism. The device realizes the automatic assembly of the core rod and the outer sleeve through the cooperation of multiple processes of the core rod feeding assembly, the outer sleeve chamfering assembly, the automatic assembly assembly and the stacking assembly, which effectively improves the work efficiency. The multiple core rods of the device are placed on the bearing frame and roll onto the lifting plate under the action of their own gravity, realizing the movement of the core rod from a low place to a high place, which effectively improves the work efficiency.

[0004] In the prior art including the above-mentioned patents, the joint is one of the important components of the gas spring, which can help the gas spring to connect with other equipment. The ball head is a commonly used joint for the gas spring, which includes a bolt and a ball head located on the bolt. The sleeve on the ball head can facilitate its connection with other components. Moreover, the joint of the gas spring is mostly installed on the piston rod. Since the piston rod can move relative to the pressure cylinder and the oil-gas mixture in the pressure cylinder can easily infiltrate the piston rod, the surface of the piston rod is very slippery, and the piston rod can also rotate relative to the pressure cylinder, which makes it difficult for the staff to install the joint on the piston rod. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic assembly device for producing a gas spring piston rod joint, aiming to solve the above-mentioned problem.

[0006] In order to achieve the above-mentioned objectives, the present invention provides an automatic assembly equipment for the production of gas spring piston rod joints, including a frame, a first conveyor belt is arranged on the frame, a rotating seat is movably arranged on the first conveyor belt, a plurality of movable blocks are slidably arranged on the rotating seat, a plurality of the movable blocks are combined to form a fixed cylinder with a middle part for accommodating and limiting a gas spring chamber, a synchronization rod is slidably arranged on the plurality of movable blocks, a clamping block for clamping a piston rod is slidably arranged on the synchronization rod, an inclined guide plate for compressing the gas spring is arranged on the frame, the first conveyor belt drives the gas spring to move so that the guide plate compresses the gas spring, and when the gas spring is compressed to the limit, the clamping block moves to clamp the piston rod at the outer part of the pressure cylinder and the synchronization rod is unlocked.

[0007] Preferably, the frame is provided with a pair of parallel distributed second conveyor belts for conveying the joints, and the second conveyor belts are provided with clamping plates for clamping the joint bolt heads.

[0008] Preferably, a pressure block for supporting the top of the joint is provided on the frame, and the synchronization rod is unlocked to allow the end of the movable rod to move closer to the bolt.

[0009] Preferably, a groove for accommodating the clamping block is movably provided on the movable block, and a plurality of the movable blocks are brought together to clamp the piston rod and unlock the synchronization rod.

[0010] Preferably, a second locking block for fixing the clamping block is slidably provided on the synchronization rod, and a pushing block for pushing the second locking block away is slidably provided on the top of the clamping block.

[0011] Preferably, a spring is provided between the synchronization rod and the movable block, and a push slope for pushing the push block is provided on the frame.

[0012] Preferably, a first locking block for fixing the rotating seat is movably provided on the first conveyor belt, and the first locking block is separated from the rotating seat to enable the rotating seat to rotate.

[0013] Preferably, a driving ring is rotatably provided on the rotating seat, and the driving ring rotates to separate the plurality of movable blocks and open a gap for the air supply spring to move.

[0014] Preferably, the frame is provided with a discharge port and an inclined rod located above the discharge port and used for pushing the end of the gas spring.

[0015] Preferably, the number of the movable blocks is four, and a pair of the movable blocks is provided with elastic blocks for pushing against the bottom joint of the pressure cylinder.

[0016] In the above technical scheme, the present invention provides an automatic assembly equipment for the production of gas spring piston rod joints, which has the following beneficial effects: when performing production work, a staff member places the gas spring in a fixed cylinder, and the joint at the bottom of the pressure cylinder enters the groove along the slope of the groove at the bottom of the fixed cylinder, so that the pressure cylinder and the fixed cylinder are engaged, and the first conveyor belt drives the gas spring to move, and the top end of the gas spring piston rod abuts against the bottom of the guide plate and is squeezed by the guide plate, causing the gas spring to contract. When the gas spring contracts to the limit, the clamping blocks on the multiple movable blocks move closer to the piston rod and abut against the part of the piston rod that is still outside the pressure cylinder to clamp the piston rod. At this time, the synchronization rod is unlocked and can move in the vertical direction. Then the piston rod is separated from the guide plate, and the piston rod can move in the vertical direction. The clamping block cooperates with the synchronization rod to limit the rotation of the piston rod, which is convenient for the staff to install the ball joint to the top of the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 A schematic diagram of the internal structure provided by an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a push-up slope provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a fixing cylinder provided in an embodiment of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 for Figure 4 Enlarged view of point B in the middle; Figure 7 A schematic diagram of the internal structure of an active block provided in an embodiment of the present invention; Figure 8 for Figure 7 Enlarged view of point C in the middle; Fig. 9 A schematic diagram of the internal structure of a rotating base provided in an embodiment of the present invention; Fig.10 for Fig. 9 Enlarged view of point D in the middle; Fig.11 for Fig. 9 Enlarged view of point E in the middle; Fig.12A schematic diagram of the structure of a second conveyor belt provided in an embodiment of the present invention; Fig.13 A schematic diagram of the structure of an elastic block provided in an embodiment of the present invention.

[0019] Description of reference numerals: 1. Frame; 11. First conveyor belt; 111. Mounting seat; 112. Rotating seat; 113. Movable block; 114. Fixed cylinder; 115. First locking block; 116. Connecting rod; 117. First wedge block; 118. Sliding rod; 119. Second cable; 12. Driving ring; 121. Synchronous rod; 122. Clamping block; 123. Second locking block; 124. Pushing block; 125. Pushing rod; 126. Sliding block; 127. First A pull rope; 128, a push ring; 129, a second wedge block; 13, a guide plate; 131, a gear ring; 132, a first rack; 133, an elastic block; 134, a fixed bar; 135, a second rack; 136, a diagonal rod; 137, a discharge port; 138, a push slope; 139, a third rack; 14, a second conveyor belt; 141, a fixed point; 142, a clamp; 143, a pressure block; 144, a movable belt; 145, a stopper. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1-12 As shown, an automatic assembly device for producing gas spring piston rod joints includes a frame 1, a first conveyor belt 11 is arranged on the frame 1, a rotating seat 112 is movably arranged on the first conveyor belt 11, a plurality of movable blocks 113 are slidably arranged on the rotating seat 112, the plurality of movable blocks 113 are combined to form a fixed cylinder 114 with a middle part for accommodating and limiting a gas spring chamber, a synchronization rod 121 is slidably arranged on the plurality of movable blocks 113, a clamping block 122 for clamping a piston rod is slidably arranged on the synchronization rod 121, an inclined guide plate 13 for compressing the gas spring is arranged on the frame 1, the first conveyor belt 11 drives the gas spring to move so that the guide plate 13 compresses the gas spring, and when the gas spring is compressed to the limit, the clamping block 122 moves to clamp the piston rod at the outer part of the pressure cylinder and the synchronization rod 121 is unlocked.

[0022] Specifically, a plurality of mounting seats 111 are provided on the first conveyor belt 11, a rotating seat 112 is rotatably installed on the mounting seat 111, a first tenon block is provided on the movable block 113, a plurality of tenons matching the first tenon block are provided on the rotating seat 112, a square joint is connected to the bottom of the pressure cylinder of the gas spring, a notch is provided at the bottom of the movable block 113, a groove matching the square joint at the bottom of the pressure cylinder is provided at the bottom of the fixed cylinder 114 composed of a plurality of movable blocks 113, and a slope is provided on the side wall of the groove, a second tenon block is provided on the top of the synchronization rod 121, a tenon matching the second tenon block is provided at the bottom of the clamping block 122, and the side wall of the clamping block 122 close to the gas spring is an arc surface, and the arc surface is covered with a rubber layer.

[0023] In the above technical scheme, when carrying out production work, a staff member places the gas spring in the fixed cylinder 114, and the joint at the bottom of the pressure cylinder enters the groove along the slope of the groove at the bottom of the fixed cylinder 114, so that the pressure cylinder and the fixed cylinder 114 are embedded, and the first conveyor belt 11 drives the gas spring to move, and the top end of the gas spring piston rod abuts against the bottom of the guide plate 13 and is squeezed by the guide plate 13, so that the gas spring contracts. When the gas spring contracts to the limit, the clamping block 122 on the multiple movable blocks 113 moves closer to the piston rod and abuts against the part of the piston rod that is still outside the pressure cylinder to clamp the piston rod. At this time, the synchronization rod 121 is unlocked and can move in the vertical direction. Then the piston rod is separated from the guide plate 13, and the piston rod can move in the vertical direction, and the clamping block 122 cooperates with the synchronization rod 121 to limit the rotation of the piston rod, which is convenient for the staff to install the ball joint to the top of the piston rod.

[0024] As an embodiment further provided by the present invention, a pair of parallel second conveyor belts 14 for conveying joints are arranged on the frame 1, and a clamping plate 142 for clamping the joint bolt head is arranged on the second conveyor belt 14.

[0025] Specifically, a clamping plate 142 is provided on the second conveyor belt 14, and the clamping plate 142 is formed by splicing a plurality of vertical pieces. A plurality of protruding fixing points 141 are provided on the clamping plate 142, and a groove adapted to the fixing point 141 is provided on the bolt head of the spherical joint. Stoppers 145 for limiting and positioning the bolt heads are symmetrically provided on the clamping plate 142, and the stoppers 145 are specifically rubber blocks.

[0026] Furthermore, during the installation work, the staff places the ball joint between a pair of clamps 142 on the two second conveyor belts 14, the block 145 positions the bolt head and cooperates with the fixing point 141 to fix the bolt head, and the second conveyor belt 14 transports the ball joint to the top of the piston rod, making it convenient to install the bolt of the ball joint on the piston rod.

[0027] As another embodiment further provided by the present invention, a pressing block 143 for supporting the top of the joint is provided on the frame 1, and the synchronization rod 121 is unlocked so that the end of the movable rod moves closer to the bolt.

[0028] Specifically, the pressing block 143 is provided with a movable belt 144 that can follow the ball joint, the guide plate 13 is provided with a notch for facilitating the movement of the ball joint bolt, and the threaded hole at the top of the piston rod is provided with a trumpet-shaped guide slope for guiding the bolt to enter.

[0029] Furthermore, during the installation work, the second conveyor belt 14 conveys the spherical joint to the bottom of the pressure block 143, and the top is against the movable belt 144. The first conveyor belt 11 conveys the gas spring, the piston rod contracts and is fixed by the clamping block 122, the synchronization rod 121 is unlocked, and the gas spring piston rod extends under the action of the gas inside the pressure cylinder and gradually approaches the bolt of the spherical joint. At this time, the gas spring and the spherical joint have the same moving speed in the horizontal direction, the piston rod continues to move upward, and the rotating seat 112 drives the fixed cylinder 114 to rotate, and the fixed The cylinder 114 drives the piston rod to rotate synchronously through the synchronization rod 121 and the clamping block 122. The piston rod rotates and moves upward, and the bolt is rotated and fixed on the top of the piston rod. During this process, the movable belt 144 is pushed by the spherical joint and moves synchronously with the spherical joint to avoid the spherical joint directly contacting the pressure block 143 and the wear caused by the relative movement of the pressure block 143. When the spherical joint moves with the piston rod to the roller of the second conveyor belt 14, the vertical pieces that make up the clamping plate 142 are temporarily separated, and the piston rod can leave the second conveyor belt 14 with the spherical joint.

[0030] As another embodiment further provided by the present invention, a groove for receiving the clamping block 122 is movably provided on the movable block 113 , and a plurality of movable blocks 113 are brought together to clamp the piston rod and unlock the synchronization rod 121 .

[0031] Specifically, a slope is arranged on the side wall of the groove.

[0032] Furthermore, when the movable block 113 is in the groove on the movable block 113, the clamping block 122 blocks the synchronization rod 121, so that the synchronization rod 121 is retained inside the movable block 113. When the clamping block 122 abuts against the piston rod, the clamping block 122 is separated from the movable block 113. At this time, the synchronization rod 121 is unlocked and can move in the vertical direction, and then can move up and down while limiting the rotation of the piston rod relative to the pressure cylinder, so as to facilitate the contact between the piston rod and the bolt of the ball joint.

[0033] As another embodiment further provided by the present invention, a second locking block 123 for fixing the clamping block 122 is slidably provided on the synchronization rod 121 , and a pushing block 124 for pushing the second locking block 123 away is slidably provided on the top of the clamping block 122 .

[0034] Specifically, a spring is arranged between the second locking block 123 and the synchronization rod 121 , a through hole adapted to the second locking block 123 is opened on the clamping block 122 , and a push block 124 is slidably arranged in the through hole.

[0035] Furthermore, when the movable block 113 is in the groove on the movable block 113, the clamping block 122 blocks the synchronization rod 121 and the second locking block 123 on the synchronization rod 121, so that the synchronization rod 121 is retained inside the movable block 113. When the clamping block 122 is against the piston rod, the second locking block 123 is opposite to the through hole on the clamping block 122. The second locking block 123 is inserted into the through hole on the clamping block 122 under the push of the spring, and pushes the push block 124 to extend above the clamping block 122. The second locking block 123 locks the clamping block 122 on the synchronization rod 121 to ensure that the clamping force of the clamping block 122 on the piston rod, and the clamping block 122 is separated from the movable block 113. At this time, the synchronization rod 121 is unlocked and can move in the vertical direction, and then can move up and down while limiting the rotation of the piston rod relative to the pressure cylinder, so as to facilitate the contact between the piston rod and the bolt of the ball joint.

[0036] As another embodiment further provided by the present invention, a spring is provided between the synchronization rod 121 and the movable block 113 , and a push slope 138 for pushing the push block 124 is provided on the frame 1 .

[0037] Specifically, a spring is provided between the synchronization rod 121 and the clamping block 122 .

[0038] Furthermore, when the clamping work is performed, the clamp block 122 is driven to approach the piston rod, and the spring between the clamp block 122 and the synchronization rod 121 is compressed, and the second locking block 123 locks the clamp block 122 on the synchronization rod 121, and the clamp block 122 is separated from the movable block 113, and the synchronization rod 121 is unlocked. The synchronization rod 121 moves upward under the push of the spring, and drives the piston rod to move upward through the clamp block 122, so that the piston rod has sufficient upward force, which facilitates the contact between the piston rod and the bolt of the ball joint, and then the bolt is rotated and fixed on the piston rod, avoiding the connection between the piston rod and the bolt of the ball joint being affected by defects in the piston rod (insufficient force for the piston rod to move upward due to insufficient pressure inside the pressure cylinder).

[0039] As another embodiment further provided by the present invention, a first locking block 115 for fixing the rotating seat 112 is movably provided on the first conveyor belt 11 , and the first locking block 115 is separated from the rotating seat 112 to allow the rotating seat 112 to rotate.

[0040] Specifically, a locking groove adapted to the first locking block 115 is provided on the rotating seat 112, a first wedge block 117 is slidably provided on the mounting seat 111, a spring is provided between the first wedge block 117 and the mounting seat 111, a spring is provided between the first locking block 115 and the mounting seat 111, a connecting rod 116 is provided on the first locking block 115, a notch is provided on the connecting rod 116 for inserting the first wedge block 117, a fixing bar 134 for pushing the first wedge block 117 to move is provided on the frame 1, a slope is provided on the end of the fixing bar 134, a gear ring 131 is provided on the rotating seat 112, a first rack 132 meshing with the gear ring 131 is provided inside the frame 1, and the tail end of the first rack 132 is a rubber strip.

[0041] Furthermore, in the process of the first conveyor belt 11 driving the rotating seat 112 and the gas spring on the rotating seat 112 to move, the gas spring is gradually compressed by the guide plate 13, and when the gas spring moves to the lowest point close to the guide plate 13, the fixing bar 134 gradually contacts the first wedge block 117, and the first wedge block 117 is pushed by the slope of the fixing bar 134 to move toward the inside of the mounting seat 111, and the spring between the first wedge block 117 and the mounting seat 111 is compressed, and the slope of the first wedge block 117 presses the connecting rod 116, so that the connecting rod 116 drives the first locking block 115 to move toward the inside of the mounting seat 111, and the first locking block 115 is separated from the rotating seat 112, and at this time, the ring gear 131 on the rotating seat 112 contacts the first rack 132 on the frame 1, and the first rack 132 pushes the ring gear 131 to drive the rotating seat 1 12 and the gas spring rotating cylinder thereon, the gas spring separates from the guide plate 13 and stretches, gradually approaches the bolt of the spherical joint, the piston rod rotates and moves upward, and is gradually rotated and fixed together with the bolt; after the bolt and the piston rod are fixed together, the spherical joint is separated from the second conveyor belt 14, and the fixing strip 134 is separated from the first wedge block 117, and the first wedge block 117 moves to the outside of the mounting seat 111 under the action of the spring, and the connecting rod 116 loses the downward pressure and only has the upward thrust of the spring. At this time, the ring gear 131 on the rotating seat 112 contacts the rubber strip, and the rubber strip pushes the rotating seat 112 to continue to rotate until the first locking block 115 is opposite to the locking hole on the rotating disk. Under the action of the spring, the connecting rod 116 pushes the first locking block 115 to insert into the rotating disk to lock the rotating disk. At this time, the ring gear 131 on the rotating disk can slide on the rubber strip.

[0042] As another embodiment further provided by the present invention, a driving ring 12 is rotatably provided on the rotating seat 112, and the driving ring 12 rotates to separate the multiple movable blocks 113 and open a gap for the air spring to move. The frame 1 is provided with a discharge port 137 and a diagonal rod 136 located above the discharge port 137 and used to push the end of the air spring.

[0043] Specifically, the driving ring 12 is provided with a flat thread, the bottom of the first wedge block 117 on the movable block 113 is provided with a slide groove adapted to the flat thread, the side wall of the driving ring 12 is provided with gear teeth, the frame 1 is provided with a second rack 135 and a third rack 139 arranged on both sides of the first conveyor belt 11 and coupled with the driving ring 12, the rotating seat 112 is provided with a notch for the second rack 135 and the third rack 139 to contact the driving ring 12, the movable block 113 is slidably provided with a push rod 125 for pushing the clamping block 122 to move, the bottom of the movable block 113 is slidably provided with a slider 126, and the slider 126 A spring is arranged between the movable block 113, a first pull cable 127 is arranged between the slider 126 and the push rod 125, a slope is arranged on the side wall of the slider 126 close to the center of the rotating seat 112, a push ring 128 is slidably arranged on the rotating seat 112, a second wedge block 129 facing the multiple sliders 126 is arranged on the push ring 128, a spring is arranged between the push ring 128 and the rotating seat 112, a slide rod 118 extending into the lock hole thereon is slidably arranged on the rotating seat 112, a spring is arranged between the slide rod 118 and the rotating seat 112, and a second pull cable 119 is arranged between the slide rod 118 and the push ring 128.

[0044] Further, when the first locking block 115 is separated from the rotating seat 112, the sliding rod 118 moves downward under the action of the spring, and drives the push ring 128 to move downward through the first cable 127, the sliding block 126 loses its support and moves downward under the action of the spring, and pulls the push rod 125 to move through the first cable 127, the push rod 125 pushes the clamping block 122 to move closer to the piston rod and clamp the piston rod, the synchronization rod 121 is unlocked and drives the piston rod to move upward through the clamping block 122, and the ball joint is gradually connected to the piston rod; after the ball joint is connected to the piston rod, the first locking block 115 is reinserted into the rotating seat 112 to lock the rotating seat 112, and at the same time the first locking block 115 pushes the sliding rod 118 to move upward, the first cable 127 between the sliding rod 118 and the push ring 128 is relaxed, and the push ring 128 drives the second wedge block 129 to move upward under the action of the spring, and the second wedge block 1 29 pushes the slider 126 to move up, and the first cable 127 between the slider 126 and the push rod 125 is relaxed; the first conveyor belt 11 continues to move with the movable seat, and the second rack 135 contacts and pushes the drive ring 12 to contact, and the flat thread on the drive ring 12 drives the movable block 113 to move in the direction away from the center of the rotating seat 112, so that a gap appears between the movable blocks 113, and the clamping block 122 is separated from the piston rod. At this time, the top of the gas spring contacts the inclined rod 136 and is pushed by the inclined rod 136 to tilt, so that the gas spring slides from the rotating seat 112 and the discharge port 137 to the outside of the frame 1. When the gas spring encounters insufficient pressure in the pressure cylinder, after the clamping block 122 is separated from the piston rod, the piston rod moves downward under the action of its own gravity, and the top of the piston rod cannot contact the inclined rod 136 and continues to move with the rotating seat 112, and at the tail end of the frame 1 (with Figure 1 The first conveyor belt 11 continues to move, driving the rotating seat 112 and the movable block 113 to move to the bottom of the first conveyor belt 11, and the driving ring 12 is coupled with the third rack 139, and the third rack 139 pushes the driving ring 12 to rotate in the opposite direction, so that the multiple movable blocks 113 are brought together, and the slider 126 on the movable block 113 moves along the slope of the second wedge block 129 and is pushed back into the movable block 113 by the second wedge block 129, and the top of the clamping block 122 abuts against the push slope 138 and is pushed The slope 138 pushes the movable block 113 to move inside. When it moves to the end of the push slope 138, the synchronization rod 121 is completely retracted into the movable block 113, and the clamping block 122 is opposite to the groove on the movable block 113. At this time, the push block 124 is pushed, and the push block 124 pushes the second locking block 123 to retract into the synchronization rod 121. The clamping block 122 is pushed by the spring between it and the synchronization rod 121 to move into the groove on the movable block 113, and is embedded in the movable block 113 along the slope on the groove, locking the synchronization rod 121 in the movable block 113.

[0045] As another embodiment further provided by the present invention, the number of the movable blocks 113 is four, and a pair of the movable blocks 113 is provided with elastic blocks 133 for pushing against the bottom joint of the pressure cylinder.

[0046] Specifically, when the movable block 113 is separated, the elastic block 133 on the movable block 113 can also temporarily push the square joint at the bottom of the pressure cylinder, thereby limiting the moving direction of the pressure cylinder and conveniently guiding the qualified gas spring to be discharged from the discharge port 137.

[0047] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic assembly device for the production of gas spring piston rod joints, characterized in that: The invention comprises a frame (1), wherein a first conveyor belt (11) is arranged on the frame (1), a rotating seat (112) is movably arranged on the first conveyor belt (11), a plurality of movable blocks (113) are slidably arranged on the rotating seat (112), a plurality of movable blocks (113) are combined to form a fixed cylinder (114) having a central portion for accommodating and limiting a gas spring chamber, a synchronization rod (121) is slidably arranged on the plurality of movable blocks (113), a clamping block (122) for clamping a piston rod is slidably arranged on the synchronization rod (121), an inclined guide plate (13) for compressing the gas spring is arranged on the frame (1), the first conveyor belt (11) drives the gas spring to move so that the guide plate (13) compresses the gas spring, and when the gas spring is compressed to the limit, the clamping block (122) moves to clamp the piston rod at the outer portion of the pressure cylinder and the synchronization rod (121) is unlocked.

2. The automatic assembly equipment for producing gas spring piston rod joints according to claim 1, characterized in that: The frame (1) is provided with a pair of second conveyor belts (14) distributed in parallel and used for conveying joints, and the second conveyor belts (14) are provided with clamping plates (142) for clamping joint bolt heads.

3. The automatic assembly equipment for producing gas spring piston rod joints according to claim 1, characterized in that: The frame (1) is provided with a pressing block (143) for supporting the top of the joint, and the synchronization rod (121) is unlocked so that the end of the movable rod moves closer to the bolt.

4. The automatic assembly equipment for producing gas spring piston rod joints according to claim 1, characterized in that: A groove for accommodating the clamping block (122) is movably provided on the movable block (113); a plurality of movable blocks (113) are brought together to clamp the piston rod and unlock the synchronization rod (121).

5. The automatic assembly equipment for producing gas spring piston rod joints according to claim 4, characterized in that: A second locking block (123) for fixing the clamping block (122) is slidably disposed on the synchronization rod (121), and a pushing block (124) for pushing the second locking block (123) away is slidably disposed on the top of the clamping block (122).

6. The automatic assembly equipment for producing gas spring piston rod joints according to claim 5, characterized in that: A spring is provided between the synchronization rod (121) and the movable block (113), and a push slope (138) for pushing the push block (124) is provided on the frame (1).

7. The automatic assembly equipment for producing gas spring piston rod joints according to claim 1, characterized in that: A first locking block (115) for fixing the rotating seat (112) is movably provided on the first conveyor belt (11), and the first locking block (115) is separated from the rotating seat (112) to allow the rotating seat (112) to rotate.

8. The automatic assembly equipment for producing gas spring piston rod joints according to claim 1, characterized in that: A driving ring (12) is rotatably disposed on the rotating seat (112), and the driving ring (12) rotates to separate the plurality of movable blocks (113) and open a gap for the air supply spring to move.

9. The automatic assembly equipment for producing gas spring piston rod joints according to claim 1, characterized in that: The frame (1) is provided with a discharge port (137) and an inclined rod (136) located above the discharge port (137) and used to push against the end of the gas spring.

10. The automatic assembly equipment for producing gas spring piston rod joints according to claim 1, characterized in that: The number of the movable blocks (113) is four, and a pair of the movable blocks (113) is provided with elastic blocks for pushing against the bottom joint of the pressure cylinder.

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