Auxiliary welding equipment for piston rod of automobile shock absorber

Abstract

The invention discloses automobile shock absorber piston rod welding auxiliary equipment, and particularly relates to the technical field of piston rod production and manufacturing, the automobile shock absorber piston rod welding auxiliary equipment comprises a base, a second shell and a first shell are connected to the upper portion of the base, and a pair of sliding seats is connected to the front and rear positions of the inner walls of the second shell and the first shell correspondingly; a sliding block is slidably connected to the interior of the sliding seat, an outer cylinder is fixedly connected to the inner ring of the sliding block, a feeding mechanism and a clamping mechanism are sequentially arranged in the outer cylinder from outside to inside, a piston rod is plugged into the inner side of the inner cylinder, the outer wall of the piston rod makes contact with a plurality of rolling wheels, the rolling wheels are driven by a first motor to rotate, and the piston rod conveniently slides into a third shell; and then a second electric push rod drives a clamping block to be pushed outwards, so that the clamping block abuts against the outer wall of the piston rod, fixing of the piston rod is completed, the operation steps are simple, the steps of manual positioning and manual clamping are omitted, and the clamping and stabilizing effect on the piston rod is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of piston rod production and manufacturing, and in particular to auxiliary welding equipment for a piston rod of an automobile shock absorber. Background Art

[0002] As an important part of the automobile suspension system, the shock absorber plays a key role in the vehicle's driving stability and ride comfort. The shock absorber is generally composed of a cylinder, a piston rod, a piston and a spring. As one of the core components of the shock absorber, the shock absorber piston rod has the main function of absorbing and dissipating the impact and vibration from the road through reciprocating motion during the movement of the shock absorber, so as to maintain the stability of the vehicle and the comfort of the ride. In order to achieve the goal of lightweight design, hollow piston rods have been rapidly developed and applied.

[0003] Welding is an important manufacturing link in the manufacturing process of hollow piston rods. The welding process directly affects the quality of the piston rod. There are many welding methods at present, among which laser welding is the most widely used. However, during the welding process, manual positioning and manual clamping are generally used for welding, which may lead to insufficient fixation of the piston rod, causing the piston rod to loosen during welding and reducing the welding accuracy. Summary of the invention

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] An auxiliary device for welding a piston rod of an automobile shock absorber, comprising:

[0006] A base, wherein a first driving mechanism is arranged inside the base, a second shell and a first shell are connected to the top of the base respectively, the bottoms of the second shell and the first shell are fixedly connected to the driving mechanism, a pair of sliding seats are connected to the front and rear positions of the inner walls of the second shell and the first shell, a slider is slidably connected inside the sliding seat, the inner ring of the slider is fixedly connected to the outer cylinder, a first through hole is opened in the middle of the inner wall of the second shell, and a second driving mechanism is arranged inside the second shell;

[0007] The inner part of the outer cylinder is provided with a feeding mechanism and a clamping mechanism in sequence from the outside to the inside.

[0008] In a possible implementation, the feeding mechanism includes seven support plates circumferentially connected to the inner wall of the outer cylinder, one side of the support plate is connected to the inner cylinder, the inner wall of the inner cylinder is circumferentially connected to seven pairs of return springs, one end of each pair of return springs is connected to a movable plate, a pair of bearings are correspondingly embedded in the inside of the movable plate, the inner ring of the bearing is fixedly connected to a shaft, and one end of the shaft is connected to a roller;

[0009] The back side of the movable plate is connected to a first motor, one end of the output shaft of the first motor is connected to a third gear, the outer side of the third gear is meshingly connected to a second gear, and the inner side of the second gear is fixedly sleeved on the outer side of the shaft.

[0010] In a possible implementation manner, a guide plate is connected to the front side of the movable plate.

[0011] In a possible implementation, seven second through holes are circumferentially opened on the outer side of the inner cylinder, and third through holes are opened on the outer side of the inner cylinder at both sides of the second through holes. A positioning rod is slidably connected to the inside of the third through hole, one end of the positioning rod passes through the interior of the reset spring and is fixedly connected to the movable plate, and the position of the second through hole corresponds to the position of the roller.

[0012] In a possible implementation, the clamping mechanism includes a third shell connected to the inner wall of the outer cylinder, five second electric push rods are circumferentially connected to the outer side of the third shell, one end of the output shaft of the second electric push rod passes through the interior of the third shell and is connected to a guide block, a pair of guide rods are slidably connected to the interior of the guide block, both ends of the guide rods are fixedly connected to the inner wall of the third shell, and a top pin is connected to the bottom of the guide block;

[0013] The inner wall of the third shell is circumferentially provided with five fourth through holes, the inside of the fourth through holes is slidably connected with a clamping block, the top of the clamping block is provided with a guide groove, the guide groove is slidably connected to the end of the ejector pin, and the guide groove is distributed with the left side lower and the right side higher.

[0014] In a possible implementation, a pair of limiting rods are connected to the left side of the clamping block, a limiting plate is connected to the right side of the clamping block, and the height of the top of the limiting rod is consistent with the height of the top of the limiting plate.

[0015] In a possible implementation, side panels are connected to both sides of the base, and fixed blocks are connected to the outer sides of the first shell and the second shell near the bottom, a feed trough is connected above the fixed block, a pulley is connected below the feed trough, the pulley is slidably connected to the side panels, a fifth through hole is provided on the top of the feed trough, a push plate is slidably connected to the outer side of the feed trough above the fifth through hole, a first electric push rod is connected to the front side of the feed trough, and one end of the output shaft of the first electric push rod passes through the interior of the feed trough and is fixedly connected to the bottom of the push plate.

[0016] In a possible implementation, the first driving mechanism includes a servo motor connected to the inside of the base, one end of the servo motor output shaft is connected to a bidirectional screw, one end of the bidirectional screw is connected to a bearing seat, the bearing seat is fixedly connected to the base, a pair of ball nut pairs are correspondingly sleeved on the outer side of the bidirectional screw, a fixing sleeve is fixedly connected to the outer side of the ball nut pair, and the tops of the pair of fixing sleeves are respectively fixedly connected to the second shell and the first shell.

[0017] In a possible implementation, the second driving mechanism includes a second motor connected to the inside of the second shell, one end of the second motor output shaft is connected to a fourth gear, the outer side of the fourth gear is meshedly connected to the first gear, and the inner ring of the first gear is fixedly connected to the outer cylinder.

[0018] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0019] The two piston rods to be welded are respectively placed in the feeding grooves on both sides, the first electric push rod is turned on, the push plate is driven forward, the piston rod is inserted into the inner side of the inner cylinder, so that the outer wall thereof contacts with a plurality of rollers, the third gear is driven to rotate by the first motor, and then the second gear and the roller are driven to rotate, so that the piston rod is conveniently slid into the third outer shell, and then the guide block is driven forward by the second electric push rod, so that the ejector pin is pushed to slide in the guide groove opened on the top of the clamping block, and then the clamping block is driven to be pushed outward so that it abuts against the outer wall of the piston rod, so that the piston rod is fixed. The operation steps are simple, and the steps of relying on manual positioning and manual clamping are eliminated, thereby greatly improving the clamping and stabilizing effect of the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 It is one of the overall structural schematic diagrams of the present invention;

[0022] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0023] Figure 3 An exploded view of the second housing and the outer cylinder of the present invention;

[0024] Figure 4 An exploded view of the internal structure of the outer cylinder of the present invention;

[0025] Figure 5 It is an enlarged view of A of the present invention;

[0026] Figure 6 It is a schematic diagram of the internal structure of the movable plate of the present invention;

[0027] Figure 7 is a schematic diagram of the internal structure of the third housing of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the clamping block of the present invention;

[0029] Fig. 9 is a top cross-sectional view of the base of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the feeding trough and the push plate of the present invention;

[0031] Fig.11 It is a top cross-sectional view of the second housing of the present invention.

[0032] Description of reference numerals:

[0033] 1. Base; 2. First shell; 3. Base; 4. Second shell; 5. Feeding trough; 6. Push plate; 7. First electric push rod; 8. Pulley; 9. First through hole; 10. Sliding seat; 11. Sliding block; 12. First gear; 13. Outer cylinder; 14. Inner cylinder; 15. Third shell; 16. Clamping block; 17. Support plate; 18. Guide plate; 19. Movable plate; 20. Positioning rod; 21. Second through hole; 22. Third through hole; 23. Reset spring; 24. Bearing; 25 , shaft; 26, roller; 27, second gear; 28, first motor; 29, third gear; 30, second electric push rod; 31, ejector; 32, guide block; 33, guide rod; 34, fourth through hole; 35, limit plate; 36, guide groove; 37, limit rod; 38, servo motor; 39, fixing sleeve; 40, bidirectional screw; 41, bearing seat; 42, ball nut pair; 43, fifth through hole; 44, fixing block; 45, fourth gear; 46, second motor. DETAILED DESCRIPTION

[0034] 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.

[0035] The embodiment of the present application solves the problems in the prior art by providing an auxiliary device for welding a piston rod of an automobile shock absorber.

[0036] The technical solution in the embodiment of the present application is to solve the above problems, and the overall idea is as follows:

[0037] Embodiment 1:

[0038] The specific structure of this embodiment is as follows: Figure 1-Figure 11As shown, an auxiliary device for welding a piston rod of an automobile shock absorber comprises:

[0039] A base 3, wherein a first driving mechanism is disposed inside the base 3, a second housing 4 and a first housing 2 are respectively connected above the base 3, the bottoms of the second housing 4 and the first housing 2 are both fixedly connected to the driving mechanism, a pair of slide seats 10 are connected to the front and rear positions of the inner walls of the second housing 4 and the first housing 2, a slider 11 is slidably connected inside the slider 10, an inner ring of the slider 11 is fixedly connected to an outer cylinder 13, a first through hole 9 is opened in the middle of the inner wall of the second housing 4, and a second driving mechanism is disposed inside the second housing 4;

[0040] The outer tube 13 is provided with a feeding mechanism and a clamping mechanism in sequence from the outside to the inside.

[0041] In some examples, the feeding mechanism includes seven support plates 17 circumferentially connected to the inner wall of the outer cylinder 13, one side of the support plate 17 is connected to the inner cylinder 14, and the inner wall of the inner cylinder 14 is circumferentially connected to seven pairs of return springs 23, one end of each pair of return springs 23 is connected to a movable plate 19, and a pair of bearings 24 are correspondingly embedded in the inside of the movable plate 19, and the inner ring of the bearing 24 is fixedly connected to a shaft 25, and one end of the shaft 25 is connected to a roller 26;

[0042] A first motor 28 is connected to the back side of the movable plate 19, and one end of the output shaft of the first motor 28 is connected to a third gear 29. The outer side of the third gear 29 is meshingly connected to the second gear 27. The inner part of the second gear 27 is fixedly sleeved on the outer side of the shaft 25. The piston rod is inserted into the inner side of the inner tube 14 so that its outer wall contacts multiple rollers 26. The third gear 29 is driven to rotate by the first motor 28, thereby driving the second gear 27 and the roller 26 to rotate, making it convenient to slide the piston rod into the third outer shell 15.

[0043] In some examples, a guide plate 18 is connected to the front side of the movable plate 19, and the piston rod is inserted into the inner side of the inner tube 14 and contacts the guide plate 18. By setting the guide plate 18, it is convenient to play a guiding role and facilitate the piston rod to slide into the inner tube 14.

[0044] In some examples, seven second through holes 21 are circumferentially opened on the outer side of the inner cylinder 14, and third through holes 22 are opened on the outer side of the inner cylinder 14 at both sides of the second through holes 21. A positioning rod 20 is slidably connected to the inside of the third through hole 22. One end of the positioning rod 20 passes through the inside of the reset spring 23 and is fixedly connected to the movable plate 19. The position of the second through hole 21 corresponds to the position of the roller 26. Under the connection between the third through hole 22 and the positioning rod 20, it is beneficial to increase the stability of the movable plate 19 during the lifting process.

[0045] In some examples, the clamping mechanism includes a third housing 15 connected to the inner wall of the outer cylinder 13, five second electric push rods 30 are circumferentially connected to the outer side of the third housing 15, one end of the output shaft of the second electric push rod 30 passes through the interior of the third housing 15 and is connected to a guide block 32, a pair of guide rods 33 are slidably connected to the interior of the guide block 32, both ends of the guide rods 33 are fixedly connected to the inner wall of the third housing 15, and a top pin 31 is connected to the bottom of the guide block 32, which is conducive to increasing the stability of the top pin 31 during movement under the connection between the guide block 32 and the guide rod 33;

[0046] Five fourth through holes 34 are circumferentially formed on the inner wall of the third housing 15, and a clamping block 16 is slidably connected inside the fourth through holes 34. A guide groove 36 is formed on the top of the clamping block 16, and the guide groove 36 is slidably connected to the end of the ejector pin 31, and the guide groove 36 is distributed with the left side lower and the right side higher. The guide block 32 is driven forward by the second electric push rod 30 to push the ejector pin 31 to slide along the guide groove 36 formed on the top of the clamping block 16, and then the clamping block 16 is pushed outward to abut against the outer wall of the piston rod, thereby fixing the piston rod. By setting the guide groove 36 to be distributed with the left side lower and the right side higher, it is convenient to drive the clamping block 16 to extend and retract while the ejector pin 31 moves left and right.

[0047] In some examples, a pair of limit rods 37 are connected to the left side of the clamp 16, and a limit plate 35 is connected to the right side of the clamp 16. The height of the top of the limit rod 37 is consistent with the height of the top of the limit plate 35. By setting the limit rod 37 and the limit plate 35, a limiting effect is achieved to prevent the clamp 16 from slipping out from the inside of the third shell 15.

[0048] In some examples, side panels 1 are connected to both sides of the base 3, and fixed blocks 44 are connected to the outer sides of the first shell 2 and the second shell 4 near the bottom. A feed trough 5 is connected above the fixed block 44, and a pulley 8 is connected below the feed trough 5. The pulley 8 is slidably connected to the side panel 1. A fifth through hole 43 is provided on the top of the feed trough 5, and a push plate 6 is slidably connected to the outer side of the feed trough 5 above the fifth through hole 43. A first electric push rod 7 is connected to the front side of the feed trough 5, and one end of the output shaft of the first electric push rod 7 passes through the interior of the feed trough 5 and is fixedly connected to the bottom of the push plate 6. Under the connection between the pulley 8 and the side panel 1, the feed trough 5 is convenient to move left and right. Before welding, the two piston rods to be welded are respectively placed in the feed troughs 5 on both sides. By turning on the first electric push rod 7, the push plate 6 is driven forward to facilitate the insertion of the piston rod into the inner side of the inner cylinder 14.

[0049] In some examples, the first driving mechanism includes a servo motor 38 connected to the inside of the base 3, one end of the output shaft of the servo motor 38 is connected to a bidirectional screw 40, one end of the bidirectional screw 40 is connected to a bearing seat 41, the bearing seat 41 is fixedly connected to the base 3, and a pair of ball nut pairs 42 are correspondingly sleeved on the outer side of the bidirectional screw 40, and a fixing sleeve 39 is fixedly connected to the outer side of the ball nut pair 42, and the top of the pair of fixing sleeves 39 are respectively fixedly connected to the second shell 4 and the first shell 2. After the piston rods on both sides are fixed respectively, the servo motor 38 is turned on to drive the bidirectional screw 40 to rotate, thereby driving the pair of ball nut pairs 42 to move toward each other, so as to facilitate the movement of the piston rods on both sides toward each other and facilitate welding.

[0050] In some examples, the second driving mechanism includes a second motor 46 connected to the inside of the second housing 4, one end of the output shaft of the second motor 46 is connected to the fourth gear 45, the outer side of the fourth gear 45 is meshingly connected to the first gear 12, and the inner ring of the first gear 12 is fixedly connected to the outer tube 13. When the piston rod needs to be rotated, the second motor 46 is turned on to drive the fourth gear 45 to rotate, thereby driving the first gear 12 and the outer tube 13 to rotate, and then driving the piston rod fixed inside the outer tube 13 to rotate, so as to facilitate rotation.

[0051] The present invention places two piston rods to be welded into the feeding grooves 5 on both sides respectively, starts the first electric push rod 7, drives the push plate 6 forward, inserts the piston rod into the inner side of the inner cylinder 14, makes the outer wall of the piston rod contact with the plurality of rollers 26, drives the third gear 29 to rotate by the first motor 28, and then drives the second gear 27 and the rollers 26 to rotate, so as to facilitate the piston rod to slide into the third shell 15, and then drives the guide block 32 forward by the second electric push rod 30, pushes the ejector pin 31 to slide along the guide groove 36 provided on the top of the clamping block 16, and then drives the clamping block 16 to be pushed outward to make it abut against the outer wall of the piston rod, so as to complete the fixing of the piston rod. The operation steps are simple, and the steps of relying on manual positioning and manual clamping are omitted, thereby greatly improving the clamping and stabilizing effect of the piston rod.

[0052] 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 auxiliary device for welding the piston rod of an automobile shock absorber, characterized in that: include: A base (3), wherein a first driving mechanism is arranged inside the base (3), a second shell (4) and a first shell (2) are connected to the top of the base (3), respectively, the bottoms of the second shell (4) and the first shell (2) are fixedly connected to the driving mechanism, a pair of sliding seats (10) are connected to the front and rear positions of the inner walls of the second shell (4) and the first shell (2), a slider (11) is slidably connected inside the slider (10), the inner ring of the slider (11) is fixedly connected to an outer cylinder (13), a first through hole (9) is opened in the middle position of the inner wall of the second shell (4), and a second driving mechanism is arranged inside the second shell (4); The outer cylinder (13) is provided with a feeding mechanism and a clamping mechanism in sequence from the outside to the inside.

2. The automobile shock absorber piston rod welding auxiliary equipment according to claim 1 is characterized in that: The feeding mechanism comprises seven support plates (17) circumferentially connected to the inner wall of the outer cylinder (13); one side of the support plate (17) is connected to the inner cylinder (14); the inner wall of the inner cylinder (14) is circumferentially connected to seven pairs of return springs (23); one end of each pair of return springs (23) is connected to a movable plate (19); a pair of bearings (24) are correspondingly embedded in the interior of the movable plate (19); the inner ring of the bearing (24) is fixedly connected to a shaft (25); one end of the shaft (25) is connected to a roller (26); The back side of the movable plate (19) is connected to a first motor (28), one end of the output shaft of the first motor (28) is connected to a third gear (29), the outer side of the third gear (29) is meshingly connected to a second gear (27), and the interior of the second gear (27) is fixedly sleeved on the outer side of the shaft (25).

3. The automobile shock absorber piston rod welding auxiliary equipment according to claim 2, characterized in that: The front side of the movable plate (19) is connected with a guide plate (18).

4. The automobile shock absorber piston rod welding auxiliary equipment according to claim 2, characterized in that: The outer side of the inner cylinder (14) is provided with seven second through holes (21) in an annular direction, and the outer side of the inner cylinder (14) is provided with third through holes (22) at both sides of the second through holes (21). A positioning rod (20) is slidably connected to the inside of the third through hole (22), one end of the positioning rod (20) passes through the inside of the reset spring (23) and is fixedly connected to the movable plate (19), and the position of the second through hole (21) corresponds to the position of the roller (26).

5. The automobile shock absorber piston rod welding auxiliary equipment according to claim 1, characterized in that: The clamping mechanism comprises a third housing (15) connected to the inner wall of the outer cylinder (13); five second electric push rods (30) are circumferentially connected to the outer side of the third housing (15); one end of the output shaft of the second electric push rod (30) passes through the interior of the third housing (15) and is connected to a guide block (32); a pair of guide rods (33) are slidably connected to the interior of the guide block (32); both ends of the guide rods (33) are fixedly connected to the inner wall of the third housing (15); and a top pin (31) is connected to the bottom of the guide block (32); The inner wall of the third shell (15) is provided with five fourth through holes (34) in an annular direction, a clamping block (16) is slidably connected inside the fourth through hole (34), a guide groove (36) is provided on the top of the clamping block (16), the guide groove (36) is slidably connected to the end of the ejector pin (31), and the guide groove (36) is distributed with the left side lower and the right side higher.

6. The automobile shock absorber piston rod welding auxiliary equipment according to claim 5, characterized in that: A pair of limiting rods (37) are connected to the left side of the clamping block (16), and a limiting plate (35) is connected to the right side of the clamping block (16). The height of the top of the limiting rod (37) is consistent with the height of the top of the limiting plate (35).

7. The automobile shock absorber piston rod welding auxiliary equipment according to claim 1, characterized in that: Both sides of the base (3) are connected to side plates (1), and the outer sides of the first shell (2) and the second shell (4) are connected to fixed blocks (44) near the bottom. A feed trough (5) is connected above the fixed block (44), and a pulley (8) is connected below the feed trough (5). The pulley (8) is slidably connected to the side plates (1). A fifth through hole (43) is provided at the top of the feed trough (5), and a push plate (6) is slidably connected to the outer side of the feed trough (5) above the fifth through hole (43). A first electric push rod (7) is connected to the front side of the feed trough (5), and one end of the output shaft of the first electric push rod (7) passes through the interior of the feed trough (5) and is fixedly connected to the bottom of the push plate (6).

8. The automobile shock absorber piston rod welding auxiliary equipment according to claim 1, characterized in that: The first driving mechanism comprises a servo motor (38) connected to the inside of the base (3); one end of the output shaft of the servo motor (38) is connected to a bidirectional screw (40); one end of the bidirectional screw (40) is connected to a bearing seat (41); the bearing seat (41) is fixedly connected to the base (3); a pair of ball nut pairs (42) are correspondingly sleeved on the outer side of the bidirectional screw (40); a fixing sleeve (39) is fixedly connected to the outer side of the ball nut pair (42); and the tops of the pair of fixing sleeves (39) are fixedly connected to the second housing (4) and the first housing (2), respectively.

9. The automobile shock absorber piston rod welding auxiliary equipment according to claim 1, characterized in that: The second driving mechanism comprises a second motor (46) connected to the inside of the second housing (4); one end of the output shaft of the second motor (46) is connected to a fourth gear (45); the outer side of the fourth gear (45) is meshingly connected to the first gear (12); the inner ring of the first gear (12) is fixedly connected to the outer cylinder (13).

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