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 present application relates to the technical field of welding, in particular to a welding device for hydraulic cylinder production. BACKGROUND

[0002] Welding is an indispensable key process in the manufacturing process of hydraulic rods. Hydraulic rods are usually composed of multiple components such as cylinder barrels, piston rods, end covers, etc., which need to be connected into a whole through welding to ensure the sealing, strength and reliability of the hydraulic rod. The quality of welding directly affects the performance and service life of the hydraulic rod. If the welding is not firm or has defects, it may cause hydraulic oil leakage, hydraulic rod breakage and other faults, thereby affecting the normal operation of the entire equipment.

[0003] The patent with patent number CN210908510U relates to a hydraulic cylinder welding device, belonging to the technical field of hydraulic cylinder manufacturing. The hydraulic cylinder welding device includes a base, a first recess is formed in the base, a telescopic plate is slidably connected to the first recess, a first motor is connected in the first recess, a first lead screw is connected to the output end of the first motor, an installation table is slidably connected to the first lead screw, an installation cavity is formed in the installation table, a hinge seat is fixedly connected in the installation cavity, a first hydraulic cylinder is rotatably connected to the hinge seat, a first hydraulic rod is slidably connected in the first hydraulic cylinder, a rotating shaft is connected in the installation cavity, a clamping plate is rotatably connected to the rotating shaft, a positioning groove is formed in 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 a clamping plate, uses shear force instead of original horizontal extrusion force, greatly improves the clamping ability of the cylindrical surface, saves manufacturing cost while improving work quality.

[0004] In the above-mentioned patent, the hydraulic cylinder drives the clamping plate, uses shear force instead of original horizontal extrusion force, greatly improves the clamping ability of the cylindrical surface, saves manufacturing cost while improving work quality, but workers need to install one by one during the welding process, which may cause workers to be injured by accidentally touching the welding device during the installation process, thereby causing loss to the workers. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a welding device for hydraulic cylinder production, which solves the problems raised in the background art.

[0006] To achieve the above purpose, the present application realizes the following technical scheme: a welding device for hydraulic cylinder production includes a limiting feeding device, a sliding feeding device and a protective door limiting device.

[0007] 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-jaw clamping mechanism, the bottom of the box is fixedly provided with a cross beam, the upper side of the cross beam is provided with a roller, and the right side of the box is provided with a discharge port.

[0008] The limiting discharging device comprises a thimble, the thimble is slidably arranged through the right side of the box, a pushing rod is arranged through the thimble, a fixed block is fixedly arranged on the inner wall of the box, a trapezoidal block is slidably arranged on the inner wall of the box, a spring one is arranged between the fixed block and the trapezoidal block, the spring one is reset after the trapezoidal block is pressed, a pushing piece is fixedly arranged on the surface of the trapezoidal block, a limiting baffle is slidably arranged on the inner wall of the box, a rotating block is rotatably arranged below the limiting baffle, the thimble is fixedly connected with the output end of the motor, and the reciprocating movement of the trapezoidal block enables the limiting baffle to move up and down once, so that the movement of the thimble controls the discharging effect.

[0009] Preferably, a spring two is arranged between the limiting baffle and the box, the spring two pulls the limiting baffle back after the limiting baffle moves upward, a torsional spring is arranged between the limiting baffle and the rotating block, and the torsional spring resets the rotating block after the rotating block rotates.

[0010] Preferably, the surface of the box is provided with an inclined surface, and a blocking rod is fixedly arranged on the surface of the inclined surface. The blocking rod prevents the cylinder bodies from colliding with each other when falling.

[0011] Preferably, the sliding device comprises a discharging box, a recess two is arranged in the discharging box, a blocking plate one and a blocking plate two are fixedly arranged in the recess two, a polishing device is arranged on the right side of the blocking plate one, a rotating plate is rotatably arranged between the blocking plate one and the blocking plate two, a spring rod is fixedly arranged below the rotating plate, a sliding buckle is slidably arranged on the surface of the blocking plate two, a spring three is arranged between the sliding buckle and the blocking plate two, the spring three resets the sliding buckle after the sliding buckle is pressed, the rotating plate falls downward by pressing the sliding buckle, and the cylinder bodies fall onto the inclined surface of the discharging box.

[0012] Preferably, the surface of the discharging box is provided with an inlet and an outlet, a limiting rod is fixedly arranged on the surface of the rotating plate, and the lower side of the sliding buckle is provided with an inclined surface. The inclined surface of the sliding buckle enables the rotating plate to move upward under the action of the spring rod, so that the rotating plate is reset.

[0013] Preferably, the protective door limiting device comprises a protective door, the protective door is slidably arranged on the surface of the box, a pushing rod is arranged through the thimble, a recess three is arranged in the bottom of the box, and a sliding rod is slidably arranged on the bottom of the box.

[0014] Preferably, 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.

[0015] Preferably, a spring is provided between the sliding protrusion and the sliding groove. The spring will reset the compressed sliding rod. A fixed baffle is fixedly installed on the back of the protective door. The limiting block on the surface of the sliding rod coincides with the limiting groove on the back of the protective door, preventing the protective door from moving further and achieving the effect of preventing workers from accidentally moving the protective door.

[0016] This invention provides a welding apparatus for the production of hydraulic cylinders. It has the following advantages: (1) The welding device for the production of hydraulic cylinders grinds the oxide on the surface of the cylinder body through the grinding device to make it better for welding. Then the ground cylinder body enters the rotating plate. The rotating plate is lowered by the cylinder body squeezing the sliding buckle, so that the cylinder body rolls to the unloading area, achieving the effect of unloading after grinding.

[0017] (2) The welding device for the production of the hydraulic cylinder rolls down to the unloading area. At this time, the ejector pin moves backward, which drives the trapezoidal block to move backward. The trapezoidal block hits the rotating block. Since the rotating block only rotates to the right, the rotating block will slide upward through the inclined surface of the trapezoidal block, thereby driving the limit baffle to move upward, so that the cylinder in the unloading area falls onto the cylinder for welding. After the fall is completed, the second spring will cause the limit baffle to reset downward, thereby achieving the effect of limiting the cylinder to only roll down once.

[0018] (3) The welding device for producing hydraulic cylinders moves forward through the movement of the ejector pin and the push rod passing through the ejector pin. When the push rod touches the inclined surface of the sliding rod, it will cause the sliding rod to move laterally. At this time, the limiting 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 no longer move, thereby achieving the effect of restricting the movement of the protective door. Attached Figure Description

[0019] Figure 1 This 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 housing of the present invention; Figure 3 This is a schematic diagram showing the positions of the housing and the ejector pin of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A; Figure 5 This is a schematic diagram showing the positions of baffle one and baffle two of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram of section B; Figure 7This is a schematic diagram showing the positions of the rotating plate and the spring rod in this invention; Figure 8 This is a schematic diagram showing the positions of the push rod and sliding rod of the present invention.

[0020] In the diagram: 1. Box body; 2. Welding mechanism; 3. Four-jaw clamping mechanism; 4. Crossbeam; 5. Roller; 6. Ejector pin; 601. Actuating rod; 602. Fixing block; 603. Trapezoidal block; 604. Spring 1; 605. Paddle; 606. Limiting baffle; 607. Rotating block; 608. Spring 2; 7. Feed box; 8. Baffle 1; 9. Baffle 2; 10. Grinding device; 701. Rotating plate; 702. Spring rod; 703. Sliding buckle; 704. Spring 3; 705. Limiting rod; 11. Stop bar; 12. Push rod; 13. Sliding rod; 14. Protective door; 801. Spring 4; 802. Fixing baffle; 803. Limiting block. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-8 One embodiment of the present invention is: a welding device for the production of hydraulic cylinders, including a housing 1, and further including a material feeding device, a material sliding device and a protective door limiting device; Among them, the inner wall of the box 1 is provided with a welding mechanism 2, the right side of the inner wall of the box 1 is provided with a four-claw clamping mechanism 3, the bottom of the box 1 is fixedly installed with a crossbeam 4, the top of the crossbeam 4 is provided with a roller 5, and the right side of the box 1 is provided with a discharge port. The feeding restriction device includes a ejector pin 6, which slides through the right side of the housing 1. A lever 601 passes through the inside of the ejector pin 6. A fixing block 602 is fixedly installed on the inner wall of the housing 1. A trapezoidal block 603 is slidably installed on the inner wall of the housing 1. A spring 604 is provided between the fixing block 602 and the trapezoidal block 603. A lever 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 housing 1. 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 lever 601. Moving forward, the lever 601 moves the trapezoidal block 603 forward by passing the paddle 605 on its surface. After moving a certain distance, the trapezoidal block 603 will collide with the rotating block 607, causing it to rotate. When the ejector pin 6 moves backward, the lever 601 moves the trapezoidal block 603 backward. When it collides with the rotating block 607, it will not rotate due to the constraint. Instead, the rotating block 607 will slide over the inclined surface of the trapezoidal block 603, causing the limit baffle 606 to move upward and the cylinder to roll onto the roller 5, thus achieving a single feeding effect.

[0023] A second spring 608 is provided between the limiting baffle 606 and the housing 1, and a torsion spring is provided between the limiting baffle 606 and the rotating block 607. The torsion spring will cause the rotating block 607 to rotate once and then quickly reset. A groove is provided inside the four-jaw clamping mechanism 3, and the second spring 608 will cause the limiting baffle 606 to move once and then reset.

[0024] The surface of the housing 1 is set as an inclined surface, and a stop bar 11 is fixedly installed on the inclined surface. The stop bar 11 will prevent the two rolling cylinders from colliding with each other.

[0025] In this embodiment, during operation: when the cylinder moves from the grinding area to the unloading area, the ejector pin 6 moves forward. After moving a certain distance, the actuating rod 601 outside the ejector pin 6 touches the actuating plate 605 on the surface of the trapezoidal block 603, causing the trapezoidal block 603 to move forward as well. At this time, the rotating block 607 below the limiting baffle 606 rotates when it touches the inclined surface of the trapezoidal block 603, preventing the limiting baffle 606 from sliding. When the ejector pin 6 moves backward, it moves the trapezoidal block 603 backward again, touching the rotating plate 607. The moving block 607 is restricted when rotating to the left. When it contacts the inclined surface of the trapezoidal block 603, the limiting baffle 606 will slide upward. At this time, the cylinder in the unloading area will fall onto the welded roller 5. After falling once, the second spring 608 below the limiting baffle 606 will reset the limiting baffle 606. At the same time, the first spring 604 connected to the trapezoidal block 603 will reset the trapezoidal block 603, thereby achieving the effect of automatic unloading controlled by the movement of the ejector pin 6.

[0026] The material feeding device includes a feeding box 7, inside which is a groove 2. A baffle 1 8 and a baffle 2 9 are fixedly installed within the groove 2. A grinding device 10 is located on the right side of baffle 1 8. A rotating plate 701 is rotatably mounted between baffle 1 8 and baffle 2 9. A spring rod 702 is fixedly installed below the rotating plate 701. A sliding buckle 703 slides through the surface of baffle 2 9. A spring 3 704 is located between the sliding buckle 703 and baffle 2 9. Spring 2 608 will reset the sliding buckle 703 after it has slid. The grinding device 10 grinds the oxidized cylinder body. After grinding, the cylinder body moves onto the rotating plate 701. When two cylinder bodies fall onto the rotating plate 701, the first cylinder body will press against the sliding buckle 703. At this time, the sliding buckle 703 will slide backward. After the sliding buckle 703 is no longer restraining it, the rotating plate 701 will rotate downward, causing the two cylinder bodies to roll downward, thus achieving the effect of automatic feeding.

[0027] The surface of the feeding box 7 has an inlet and an outlet. A limit rod 705 is fixedly installed on the surface of the rotating plate 701, and the lower part of the sliding buckle 703 is set as an inclined surface. After the rotating plate 701 rotates, it will be reset by the spring rod 702. It will pass through the inclined surface of the sliding buckle 703, causing the sliding buckle 703 to slide again, so that the rotating plate 701 re-enters the sliding buckle 703, thereby achieving the effect of resetting the rotating plate 701.

[0028] The protective door limiting device includes a protective door 14, which is slidably installed on the surface of the housing 1. A limiting groove is provided at the bottom of the protective door 14. A push rod 12 passes through the inside of the ejector pin 6. A groove 3 is provided at the bottom of the housing 1. A sliding rod 13 is slidably installed at the bottom of the housing 1. The sliding rod 13 is slidably installed in the sliding groove of the housing 1. A limiting block 803 is provided on the surface of the sliding rod 13. The surface of the sliding rod 13 is provided with a slope. A spring 4 801 is provided between the limiting block 803 and the sliding groove. The spring 4 801 will reset the sliding rod 13 when the welding machine finishes working. A fixing baffle 802 is fixedly installed on the back of the protective door 14. When the ejector pin 6 moves forward, it drives the push rod 12. The push rod 12 touches the inclined surface of the sliding rod 13, which causes the sliding rod 13 to slide in the sliding groove through the internal limiting block 803. When it slides to a certain position, the protruding limiting 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 machine is working.

[0029] In this embodiment, during operation: the operator places the cylinder body from the feeding box 7 into the internal grinding device 10 for grinding. After grinding, the ground cylinder body is transferred to the rotating plate 701. When two cylinder bodies are transferred to the rotating plate 701, the cylinder bodies press against the sliding buckle 703, causing the rotating plate 701 to lose 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 the inclined surface of the sliding buckle 703, causing the sliding buckle 703 to slide outward. When the rotating plate 701 resets, the spring rod 704 will reset the sliding buckle 703, thereby locking the rotating plate 701 again, achieving the effect of unloading two cylinder bodies at the same time.

[0030] When the ejector pin 6 moves forward and presses against the cylinder body 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 housing 1, so that the sliding rod 13 slides towards 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 achieving the effect of protecting the worker from accidentally touching the protective door 14 and causing the protective door 14 to move and thus causing injury. When the welding machine finishes processing, the ejector pin 6 will continue to move forward, sending the processed cylinder body out from the right side of the housing 1. After the cylinder body is sent out, the ejector pin 6 will move backward. When the ejector pin 6 resets, the sliding rod 13 will no longer be restricted by the push rod 12, and will be reset by the spring 801 fixed between the bottom limit block 803 and the sliding groove, so that the protective door 14 is released from restriction and the protective door 14 is restored to a movable state, achieving the effect of restricting the movement of the protective door 14 when the welding machine is working and releasing the restriction when it is not working.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for hydraulic cylinder production, comprising a housing, characterized in that: It also includes a material feeding device, a material sliding device, and a protective door limit device; The inner wall of the box is equipped with a welding mechanism, the right side of the inner wall of the box is equipped with a four-claw clamping mechanism, a crossbeam is fixedly installed at the bottom of the box, a roller is installed above the crossbeam, and a discharge port is opened on the right side of the box. The limiting feeding device includes a ejector pin that slides through the right side of the housing. A lever passes through the inside of the ejector pin. A fixing block is fixedly installed on the inner wall of the housing. A trapezoidal block is slidably installed on the inner wall of the housing. A spring is provided between the fixing block and the trapezoidal block. A lever is fixedly installed on the surface of the trapezoidal block. A limit baffle is slidably installed on the inner wall of the housing. A rotating block is rotatably installed below the limit baffle. The ejector pin is fixedly connected to the output end of the motor. The material feeding device includes a feeding box with a groove II inside. A baffle I and a baffle II are fixedly installed in the groove II. A grinding device is provided on the right side of the baffle I. A rotating plate is rotatably installed between the baffle I and the baffle II. A spring rod is fixedly installed below the rotating plate. A sliding buckle is slidably passed through the surface of the baffle II. A spring III is provided between the sliding buckle and the baffle II. The surface of the feeding box has an inlet and an outlet. A limit rod is fixedly installed on the surface of the rotating plate. The area below the sliding buckle is set as an inclined surface. When the cylinder moves from the grinding area into the unloading area, the ejector pin moves forward. When it moves a certain distance, the lever on the outside of the ejector pin touches the paddle on the surface of the trapezoidal block, which will cause the trapezoidal block to move forward together. At this time, the rotating block below the limit baffle will rotate when it touches the inclined surface of the trapezoidal block, which will prevent the limit baffle from sliding. When the ejector pin moves backward, it will cause the trapezoidal block to move backward together and touch the rotating block again. Since the rotating block is limited when it rotates to the left, when it touches the inclined surface of the trapezoidal block, the limit baffle will slide upward. At this time, the cylinder in the unloading area will fall onto the roller on the welding assembly. The protective door limiting device includes a protective door, which is slidably installed on the surface of the box. A push rod passes through the inside of the ejector pin. A groove is provided at the bottom of the box, and a sliding rod is slidably installed at the bottom of the box.

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

3. The welding apparatus for hydraulic cylinder production according to claim 1, characterized in that: The surface of the box is provided with a slope, and a stop bar is fixedly installed on the slope surface.

4. The welding device for hydraulic cylinder production according to claim 1, characterized in that: The bottom of the protective door has a limit groove, and the surface of the sliding rod is provided with a limit block.

5. The welding apparatus for hydraulic cylinder production according to claim 4, characterized in that: The sliding rod has an inclined surface, a spring is provided between the limiting block and the sliding groove, and a fixed baffle is fixedly installed on the back of the protective door.

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