Welding device for hydraulic cylinder production

Abstract

The invention discloses a welding device for hydraulic cylinder production, and relates to the technical field of welding, and the welding device for hydraulic cylinder production comprises a blanking limiting device, a material sliding device and a protective door limiting device. Wherein a welding mechanism is arranged on the inner wall of the box body, a four-claw clamping mechanism is arranged on the right side of the inner wall of the box body, a cross beam is fixedly installed at the bottom of the box body, a roller is arranged above the cross beam, a discharging port is formed in the right side of the box body, the discharging limiting device comprises an ejector pin, and the ejector pin penetrates through the right side of the box body in a sliding mode. A shifting rod penetrates through the ejector pin, a fixing block is fixedly installed on the inner wall of the box body, a trapezoidal block is slidably installed on the inner wall of the box body, a first spring is arranged between the fixing block and the trapezoidal block and can reset after the trapezoidal block is extruded, and a shifting piece is fixedly installed on the surface of the trapezoidal block. A limiting baffle is slidably mounted on the inner wall of the box body, and a rotating block is rotatably mounted below the limiting baffle.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a welding device for producing hydraulic cylinders. Background Art

[0002] Welding is an essential and critical process in the manufacturing of hydraulic rods. Hydraulic rods typically consist of multiple components, such as the cylinder, piston rod, and end caps. Welding these components together to ensure the rod's tightness, strength, and reliability. The quality of the weld directly impacts the performance and service life of the hydraulic rod. Weak or defective welds can lead to hydraulic oil leakage, rod breakage, and other failures, impacting the normal operation of the entire equipment.

[0003] Patent announcement number CN210908510U relates to a hydraulic cylinder welding device, belonging to the field of hydraulic cylinder manufacturing technology. A hydraulic cylinder welding device includes a base, a first groove is provided on the base, a telescopic plate is slidably connected to the first groove, a first motor is connected in the first groove, a first screw is connected to the output end of the first motor, a mounting platform is slidably connected to the first screw, a mounting cavity is provided in the mounting platform, an articulated seat is fixedly connected in the mounting cavity, a first hydraulic cylinder is rotatably connected to the articulated seat, a first hydraulic rod is slidably connected in the first hydraulic cylinder, a rotating shaft is connected in the mounting cavity, a clamping plate is rotatably connected to the rotating shaft, a positioning groove is provided on the clamping plate, and the end of the first hydraulic rod away from the first hydraulic cylinder is connected to the clamping plate; the invention uses a hydraulic cylinder to drive the clamping plate, and utilizes shear force instead of the original horizontal extrusion force, greatly improving the clamping capacity of the cylindrical surface, while improving work quality and saving manufacturing costs.

[0004] In the above patent, a hydraulic cylinder is used to drive the clamping plate, and shear force is used instead of the original horizontal extrusion force, which greatly improves the clamping ability of the cylindrical surface, saving manufacturing costs while improving work quality. However, workers need to install the cylinders one by one during the welding process, which may cause workers to accidentally touch the welding device during the installation process, resulting in injuries to the workers, thereby causing losses to the workers. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a welding device for producing hydraulic cylinders, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A welding device for hydraulic cylinder production includes a material restriction device, a material sliding device and a protective door limiting device.

[0007] Among them, the inner wall of the box is provided with a welding mechanism, the right side of the inner wall of the box is provided with a four-claw clamping mechanism, a crossbeam is fixedly installed at the bottom of the box, a roller is provided above the crossbeam, and a discharge port is opened on the right side of the box. Basic welding equipment can achieve the effect of welding hydraulic cylinder.

[0008] Among them, the material cutting device includes a pin, the pin slides through the right side of the box, a toggle rod is passed through the inside of the pin, a fixed block is fixedly installed on the inner wall of the box, a trapezoidal block is slidably installed on the inner wall of the box, a spring 1 is provided between the fixed block and the trapezoidal block, and the spring 1 will reset after the trapezoidal block is squeezed, a paddle is fixedly installed on the surface of the trapezoidal block, a limit baffle is slidably installed on the inner wall of the box, a rotating block is rotatably installed under the limit baffle, the pin is fixedly connected to the output end of the motor, and the reciprocating motion of the trapezoidal block causes the limit baffle to move up and down once, thereby controlling the material cutting effect by the movement of the pin.

[0009] Preferably, a second spring is provided between the limit baffle and the box body, and the second spring will pull the limit baffle back after it moves upward. A torsion spring is provided between the limit baffle and the rotating block, and the torsion spring will reset the rotating block after it rotates. A groove one is provided inside the four-claw clamping mechanism.

[0010] Preferably, the surface of the box body is provided with an inclined surface, and a stop rod is fixedly mounted on the inclined surface, so that the cylinder bodies that roll down will not collide with each other.

[0011] Preferably, the sliding device includes a discharge box, the interior of the discharge box is provided with a groove 2, baffle 1 and baffle 2 are fixedly installed in the groove 2, a grinding device is provided on the right side of the baffle 1, a rotating plate is rotatably installed between the baffle 1 and the baffle 2, a spring rod is fixedly installed under the rotating plate, a sliding buckle is slidingly penetrated on the surface of the baffle 2, a spring 3 is provided between the sliding buckle and the baffle 2, and the spring 3 will reset the buckle after being squeezed, and by squeezing the sliding buckle, the rotating plate will fall downward, thereby causing the cylinder body to fall onto the inclined surface of the discharge box.

[0012] Preferably, the surface of the material box is provided with a feed port and a discharge port, a limit rod is fixedly mounted on the surface of the rotating plate, and an inclined surface is provided below the sliding buckle. The inclined surface of the buckle allows the rotating plate to move upward under the force of the spring rod, thereby achieving the effect of resetting the rotating plate.

[0013] Preferably, the protective door limiting device includes a protective door, which is slidably mounted on the surface of the box body, a push rod is passed through the inside of the ejector pin, a groove three is opened at the bottom of the box body, and a sliding rod is slidably mounted on the bottom of the box body.

[0014] Preferably, a limiting groove is provided on the bottom of the protective door, and a limiting block is provided on the surface of the sliding rod.

[0015] Preferably, a spring 4 is provided between the sliding protrusion and the sliding groove to reset the sliding rod after being squeezed. A fixed baffle is fixedly mounted on the back of the protective door. The stopper on the surface of the sliding rod coincides with the stopper groove on the back of the protective door, preventing the protective door from moving further, thereby preventing workers from accidentally touching the protective door and causing it to move.

[0016] The present invention provides a welding device for hydraulic cylinder production. It has the following beneficial effects: (1) The welding device used in the production of hydraulic cylinders uses a grinding device to grind off the oxides on the surface of the cylinder body, making it easier to weld. The polished cylinder body then enters the rotating plate, which is squeezed by the sliding buckle to make the rotating plate fall, so that the cylinder body rolls down to the area to be unloaded, achieving the effect of post-grinding processing and unloading.

[0017] (2) The welding device for the production of hydraulic cylinders, the cylinder body rolls down to the area to be unloaded, at this time the ejector moves backward, driving the trapezoidal block to move backward, the trapezoidal block hits the rotating block, since the rotating block can only rotate to the right, at this time the rotating block will slide upward through the inclined surface of the trapezoidal block, thereby driving the limit baffle to move upward, causing the cylinder body in the area to be unloaded to fall onto the cylinder for welding. After the fall is completed, the spring 2 will reset the limit baffle downward, thereby achieving the effect of limiting the cylinder body to roll down only once.

[0018] (3) The welding device for the production of hydraulic cylinders moves forward through the movement of the ejector pin. When the push rod touches the inclined surface of the sliding rod, the sliding rod will move laterally. At this time, the limit block on the surface of the sliding rod will be stuck in the fixed baffle on the back of the protective door, so that the protective door will not move any further, thereby achieving the effect of limiting the movement of the protective door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the box of the present invention; Figure 3 This is a schematic diagram of the box and ejector positions of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part A; Figure 5 This is a schematic diagram of the positions of baffle 1 and baffle 2 of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram of part B in the middle; Figure 7This is a schematic diagram of the positions of the rotating plate and the spring rod of the present invention; Figure 8 This is a schematic diagram of the positions of the push rod and the sliding rod of the present invention.

[0020] In the figure: 1. Box body; 2. Welding mechanism; 3. Four-claw clamping mechanism; 4. Crossbeam; 5. Roller; 6. Ejector pin; 601. Toggle rod; 602. Fixed block; 603. Trapezoidal block; 604. Spring 1; 605. Pick; 606. Limit baffle; 607. Rotating block; 608. Spring 2; 7. Unloading box; 8. Baffle 1; 9. Baffle 2; 10. Grinding device; 701. Rotating plate; 702. Spring rod; 703. Sliding buckle; 704. Spring 3; 705. Limit rod; 11. Baffle; 12. Push rod; 13. Sliding rod; 14. Protective door; 801. Spring 4; 802. Fixed baffle; 803. Limit block. DETAILED DESCRIPTION

[0021] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] See also Figures 1-8 , one embodiment of the present invention is: a welding device for hydraulic cylinder production, comprising a box body 1, and also comprising a material limiting device, a material sliding device and a protective door limiting device; Among them, the inner wall of the box body 1 is provided with a welding mechanism 2, the right side of the inner wall of the box body 1 is provided with a four-claw clamping mechanism 3, the bottom of the box body 1 is fixedly installed with a beam 4, a roller 5 is provided above the beam 4, and a discharge port is opened on the right side of the box body 1; Among them, the limiting feeding device includes an ejector pin 6, which slides through the right side of the box body 1, and a toggle rod 601 is passed through the inside of the ejector pin 6. A fixed block 602 is fixedly installed on the inner wall of the box body 1, and a trapezoidal block 603 is slidably installed on the inner wall of the box body 1. A spring 604 is provided between the fixed block 602 and the trapezoidal block 603. A paddle 605 is fixedly installed on the surface of the trapezoidal block 603. A limit baffle 606 is slidably installed on the inner wall of the box body 1, and a rotating block 607 is rotatably installed below the limit baffle 606. The ejector pin 6 is fixedly connected to the output end of the motor, and the ejector pin 6 drives the toggle rod 601 When the push pin 601 moves forward, the paddle 605 passing through the surface of the trapezoidal block 603 will drive the trapezoidal block 603 to move forward. After the trapezoidal block 603 moves to a certain distance, it will hit the rotating block 607. At this time, the rotating block 607 will rotate. When the ejector pin 6 moves backward, the toggle rod 601 drives the trapezoidal block 603 to move backward. At this time, when it hits the rotating block 607, due to the restriction, the rotating block 607 will not rotate. The rotating block 607 will slide over the inclined surface of the trapezoidal block 603, thereby moving the limit baffle 606 upward, causing the cylinder body to roll onto the roller 5, achieving a one-time unloading effect.

[0023] A spring 2 608 is provided between the limit baffle 606 and the box body 1, and a torsion spring is provided between the limit baffle 606 and the rotating block 607. The torsion spring will cause the rotating block 607 to quickly reset after rotating once. A groove 1 is provided inside the four-claw clamping mechanism 3, and the spring 2 608 will cause the limit baffle 606 to reset after moving once.

[0024] The surface of the box body 1 is set as an inclined surface, and a blocking rod 11 is fixedly installed on the inclined surface. The blocking rod 11 prevents the two rolling cylinder bodies from colliding with each other.

[0025] When this embodiment is working: when the cylinder body enters the unloading area from the grinding area, the ejector pin 6 will move forward. When it moves to a certain distance, the toggle rod 601 outside the ejector pin 6 touches the paddle 605 on the surface of the trapezoidal block 603, which will drive the trapezoidal block 603 to move forward together. At this time, the rotating block 607 under the limit baffle 606 will rotate when it touches the inclined surface of the trapezoidal block 603, and will not cause the limit baffle 606 to slide. When the ejector pin 6 moves backward, it will drive the trapezoidal block 603 to move backward and touch the rotating block 607 again. The movable block 607 is restricted when rotating to the left. At this time, when it contacts the inclined surface of the trapezoidal block 603, the limit baffle 606 will slide upward. At this time, the cylinder body in the area to be unloaded will fall onto the roller 5 on the welding assembly. After falling once, the spring 2 608 under the limit baffle 606 will reset the limit baffle 606. At the same time, the spring 1 604 connected to the trapezoidal block 603 will reset the trapezoidal block 603, thereby realizing the effect of automatic unloading controlled by the movement of the ejector 6.

[0026] The sliding device includes a material unloading box 7, which has a groove 2 formed inside, and a baffle 1 8 and a baffle 2 9 fixedly installed in the groove 2. A grinding device 10 is provided on the right side of the baffle 1 8. A rotating plate 701 is rotatably installed between the baffle 1 8 and the baffle 2 9. A spring rod 702 is fixedly installed below the rotating plate 701. A sliding clip 703 slides through the surface of the baffle 2 9. A spring 3 704 is provided between the sliding clip 703 and the baffle 2 9. The spring 2 608 resets the sliding clip 703 after sliding. The surface of the oxidized cylinder body is polished by the grinding device 10. After polishing, the polished cylinder body will move to the rotating plate 701. When two cylinder bodies fall onto the rotating plate 701, the first cylinder body will squeeze the sliding clip 703. At this time, the sliding clip 703 will slide backward. After the sliding clip 703 is no longer restricted, the rotating plate 701 will rotate downward, causing the two cylinder bodies to roll downward, thereby achieving the effect of automatic unloading.

[0027] The surface of the material box 7 is provided with a feed inlet and a discharge outlet. A limit rod 705 is fixedly mounted on the surface of the rotating plate 701, and a slope is provided below the sliding buckle 703. After the rotating plate 701 rotates, it is reset by the spring rod 702, passing the slope of the sliding buckle 703, causing the sliding buckle 703 to slide again, allowing the rotating plate 701 to re-enter the sliding buckle 703, thereby achieving the effect of returning the rotating plate 701 to its original position.

[0028] The protective door limiting device includes a protective door 14, which is slidably installed on the surface of the box body 1. A limiting groove is provided at the bottom of the protective door 14, and a push rod 12 is passed through the inside of the ejector pin 6. A groove three is provided at the bottom of the box body 1. A sliding rod 13 is slidably installed at the bottom of the box body 1. The sliding rod 13 is slidably installed in the sliding groove of the box body 1. A limiting block 803 is provided on the surface of the sliding rod 13, and a slope is provided on the surface of the sliding rod 13. A spring four 801 is provided between the limiting block 803 and the sliding groove. The spring four 801 will reset the sliding rod 13 when the welding bed finishes working. A fixed baffle 802 is fixedly installed on the back of the protective door 14. When the ejector pin 6 moves forward and drives the push rod 12, the push rod 12 touches the inclined surface of the sliding rod 13, causing the sliding rod 13 to slide in the sliding groove through the internal limit block 803. When it slides to a certain position, the raised limit block 803 on the surface of the sliding rod 13 will be stuck in the fixed baffle 802 on the back of the protective door 14, thereby achieving the effect of fixing the protective door 14 when the welding bed is working.

[0029] When this embodiment is working: the staff puts the cylinder body from the unloading box 7 into the internal grinding device 10 for grinding. After the grinding is completed, the polished cylinder body will be transferred to the rotating plate 701. When two cylinder bodies are transferred to the rotating plate 701, the sliding buckle 703 is squeezed by the cylinder body, which will cause the rotating plate 701 to lose the control of the sliding buckle 703. The rotating plate 701 will rotate downward, causing the two cylinder bodies to slide down to the unloading area. After the cylinder bodies have slid down, the rotating plate 701 will rotate upward under the rebound force of the spring rod 702. At this time, the rotating plate 701 passes through the inclined surface of the sliding buckle 703, causing the sliding buckle 703 to slide outward. When the rotating plate 701 is reset, the spring three 704 will reset the sliding buckle 703, thereby locking the rotating plate 701 again, achieving the effect of simultaneously unloading two cylinder bodies at one time.

[0030] When the ejector pin 6 moves forward and presses against the cylinder to be processed on the welding bed, the push rod 12 fixed on the surface of the ejector pin 6 will move forward at the same time. At this time, the push rod 12 will touch the inclined surface of the sliding rod 13 at the bottom of the box body 1, causing the sliding rod 13 to slide toward the protective door 14 through the sliding groove at the bottom. When the sliding rod 13 slides to a certain distance, the limit block 803 will be stuck in the fixed baffle 802 set on the back of the protective door 14, so that the protective door 14 will not move when the welding bed is working, thereby protecting workers from accidentally touching the protective door 14 and causing the protective door 14 to move and get injured. When the welding bed processing is completed, the ejector pin 6 will continue to move forward and send the processed cylinder body out of the right side of the box body 1. After sending the cylinder body out, the ejector pin 6 will move backward. When the ejector pin 6 is reset, the sliding rod 13 is no longer restricted by the push rod 12, and will be reset through the spring 4 801 fixed between the bottom limit block 803 and the sliding groove, so that the protective door 14 is released from the restriction and the protective door 14 is restored to a movable state, thereby achieving the effect of restricting the movement of the protective door 14 when the welding bed is working and releasing the restriction on movement when it is not working.

[0031] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for producing hydraulic cylinders, comprising a box, characterized in that: It also includes a material-limiting device, a material-sliding device, and a protective door limiting device; The inner wall of the box is provided with a welding mechanism, the right side of the inner wall of the box is provided with a four-claw clamping mechanism, a crossbeam is fixedly installed at the bottom of the box, a roller is provided above the crossbeam, and a discharge port is opened on the right side of the box; Among them, the limiting feeding device includes a pin, the pin slides through the right side of the box, a toggle rod is passed through the inside of the pin, a fixed block is fixedly installed on the inner wall of the box, a trapezoidal block is slidably installed on the inner wall of the box, a spring is provided between the fixed block and the trapezoidal block, a paddle is fixedly installed on the surface of the trapezoidal block, a limit baffle is slidably installed on the inner wall of the box, a rotating block is rotatably installed under the limit baffle, and the pin is fixedly connected to the output end of the motor.

2. A welding device for hydraulic cylinder production according to claim 1, characterized in that: A second spring is provided between the limit baffle and the box body, a torsion spring is provided between the limit baffle and the rotating block, and a first groove is provided inside the four-claw clamping mechanism.

3. A welding device for hydraulic cylinder production according to claim 2, characterized in that: The surface of the box body is provided with an inclined surface, and a blocking rod is fixedly installed on the inclined surface.

4. A welding device for producing hydraulic cylinders according to claim 3, characterized in that: The sliding device includes a material discharge box, a groove 2 is opened inside the material discharge box, baffle 1 and baffle 2 are fixedly installed in the groove 2, a grinding device is provided on the right side of baffle 1, a rotating plate is rotatably installed between baffle 1 and baffle 2, a spring rod is fixedly installed under the rotating plate, a sliding buckle is slidingly penetrated on the surface of baffle 2, and a spring 3 is provided between the sliding buckle and baffle 2.

5. The welding device for hydraulic cylinder production according to claim 4, characterized in that: The surface of the discharge box is provided with a feed port and a discharge port, a limit rod is fixedly installed on the surface of the rotating plate, and an inclined surface is arranged below the sliding buckle.

6. The welding device for hydraulic cylinder production according to claim 5, characterized in that: The protective door limiting device includes a protective door, which is slidably installed on the surface of the box body. A push rod is passed through the inside of the ejector pin. A groove three is opened at the bottom of the box body, and a sliding rod is slidably installed at the bottom of the box body.

7. The welding device for hydraulic cylinder production according to claim 6, characterized in that: A limiting groove is provided at the bottom of the protective door, and a limiting block is provided on the surface of the sliding rod.

8. The welding device for hydraulic cylinder production according to claim 7, characterized in that: The surface of the sliding rod is provided with an inclined surface, a spring four is provided between the limit block and the sliding groove, and a fixed baffle is fixedly installed on the back of the protective door.

Images