Air spring piston assembly welding tool

Abstract

The air spring piston assembly welding machining tool comprises a containing cylinder, a plurality of communicating grooves are formed in the containing cylinder, a rotating shaft is rotationally connected to the upper sides of the communicating grooves, a gear is fixedly connected to the middle of the rotating shaft, and a rotating plate is fixedly connected to the outer side of the rotating shaft; a lifting rod is slidably connected into the containing barrel, four racks are fixedly connected to the outer side of the lifting rod, two first connecting lugs are fixedly connected to the two sides of the lower portion of the containing barrel, a first sliding rod is slidably connected into the first connecting lug on one side, and first connecting frames are fixedly connected to the two ends of the first sliding rod. A sliding box is slidably connected to the outer side of the first connecting frame, a second connecting frame is fixedly connected to the lower portion of the rear side of the sliding box, a first hydraulic cylinder is fixedly connected to the lower portion of the second connecting frame, and the output end of the first hydraulic cylinder penetrates through the second connecting frame to be fixedly connected with an inner pushing rod to achieve inner support fixing.

Description

TECHNICAL FIELD

[0001] The present application relates to spring production equipment technical field, specifically to a kind of air spring piston assembly welding processing frock. BACKGROUND

[0002] In the production process of air spring piston assembly, the welding of air spring support rod and piston is one of the core processes, and the coaxiality of support rod and piston and the accuracy of welding position need to be ensured, otherwise it will directly affect the subsequent assembly precision and use performance of air spring.

[0003] The existing welding processing frock has the following shortcomings: the clamping mode of air spring support rod is mostly external clamping, which can easily cause deformation of support rod due to uneven clamping force, and cannot adapt to support rods of different diameters, so the versatility is poor. To solve the above problems, the present application proposes a welding processing frock with internal support clamping as the core to solve the defects of the existing frock. SUMMARY

[0004] The purpose of the present application is to provide an air spring piston assembly welding processing frock to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: an air spring piston assembly welding processing frock, comprising a placing cylinder, a plurality of groups of communication grooves are formed in the inside of the placing cylinder, a rotating shaft is rotatably connected to the upper side of the communication grooves, a gear is fixedly connected to the middle part of the rotating shaft, a rotating plate is fixedly connected to the outside of the rotating shaft, a lifting rod is slidably connected to the inside of the placing cylinder, four groups of racks are fixedly connected to the outside of the lifting rod, the racks are engaged with the gear, two groups of first lugs are fixedly connected to the lower part of both sides of the placing cylinder, a first sliding rod is slidably connected to the inside of one side of the first lug, first connecting frames are fixedly connected to both ends of the first sliding rod, an upper communication hole is formed in the middle part of the first connecting frame, which is opposite to the lifting rod, a sliding box is slidably connected to the outside of the first connecting frame, a lower communication hole is formed in the lower part of the rear side of the sliding box, which matches the upper communication hole, a second connecting frame is fixedly connected to the lower part of the rear side of the sliding box, a first hydraulic cylinder is fixedly connected to the lower part of the second connecting frame, an inner push rod is fixedly connected to the output end of the first hydraulic cylinder, which penetrates the second connecting frame, an outer push rod is slidably connected to the outside of the inner push rod, and the outer push rod is slidably connected to the inside of the lower communication hole.

[0006] Preferably, a first threaded rod is rotatably connected to the inside of the other side of the first connecting frame, and the first threaded rod is threadedly connected to the inside of the other side of the first lug.

[0007] Preferably, the second connecting frame is fixedly connected with the second ear on both sides, a second sliding rod is slidably connected in the second ear on one side, the second sliding rod is fixedly connected with the sliding box at both ends, a second threaded rod is rotatably connected in the sliding box on the other side, the second threaded rod is threadedly connected in the second ear on the other side, a motor is fixedly connected with the sliding box on the outside, and the power end of the motor is fixedly connected with the second threaded rod.

[0008] Preferably, a first spring is fixedly connected between the upper part of the lifting rod and the inner wall of the placing cylinder.

[0009] Preferably, a third ear is fixedly connected with the lower part of the outer push rod on both sides, a fourth ear is fixedly connected with the lower part of the inner push rod on both sides, a third sliding rod is fixedly connected with the lower part of the third ear, a fixed sheet is fixedly connected with the lower part of the third sliding rod and penetrates through the fourth ear, a second spring is fixedly connected between the fixed sheet and the fourth ear, and the second spring is sleeved on the outside of the third sliding rod.

[0010] Preferably, a third connecting frame is fixedly connected with the sliding box on both sides, a processing table is fixedly connected with the upper part of the third connecting frame, an insertion slot opposite to the placing cylinder is formed in the middle of the processing table, a support frame is fixedly connected with the upper side of the middle of the processing table, a second hydraulic cylinder is fixedly connected with the upper part of the support frame, a lifting plate is fixedly connected with the power end of the second hydraulic cylinder and penetrates through the support frame, a heater is fixedly connected with the lower part of the lifting plate, and an electric welding head is fixedly connected with the lower part of the heater.

[0011] Preferably, a support plate is fixedly connected with the lower part of the processing table, and a base is fixedly connected with the lower part of the support plate.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] 1. When the lifting rod rises, the outer gear rack is engaged with the gear to drive the gear to rotate synchronously with the rotating shaft, the rotating shaft drives the outer rotating plate to rotate towards the outside of the placing cylinder until the inner wall of the rotating plate is tightly fitted with the air spring supporting rod, the inner support is fixed, the rod body deformation caused by the outer clamping type is avoided, and the opening and closing amplitude of the rotating plate can be adjusted by the stroke of the lifting rod to adapt to supporting rods of different diameters, and the universality is high.

[0014] 2. The second spring is sleeved on the outside of the third sliding rod to buffer the impact force when the outer push rod rises, and when the rising height of the outer push rod is slightly high or slightly low, the elastic deformation of the second spring can compensate for the height deviation to prevent clamping failure or component impact caused by inappropriate height. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the present application.

[0016] Figure 2 It is a perspective structural section view of the present application;

[0017] Figure 3 It is a perspective structural section view of the present application;

[0018] Figure 4 It is an enlarged view of the structure at A of the present application;

[0019] Figure 5 It is an enlarged view of the structure at B of the present application;

[0020] Figure 6 It is an enlarged view of the structure at C of the present application.

[0021] In the figure: 1, placing cylinder; 2, communicating groove; 3, rotating shaft; 4, gear; 5, rotating plate; 6, lifting rod; 7, rack; 8, first spring; 9, first lug; 10, first sliding rod; 11, first threaded rod; 12, first connecting frame; 13, upper communicating hole; 14, second lug; 15, second sliding rod; 16, second threaded rod; 17, sliding box; 18, motor; 19, lower communicating hole; 20, second connecting frame; 21, first hydraulic cylinder; 22, inner push rod; 23, outer push rod; 24, third lug; 25, fourth lug; 26, third sliding rod; 27, fixed sheet; 28, second spring; 29, third connecting frame; 30, processing table; 31, insertion groove; 32, supporting frame; 33, second hydraulic cylinder; 34, lifting plate; 35, heater; 36, electric welding head; 37, supporting plate; 38, base. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0023] Please refer to Figures 1-6The application provides a technical scheme: an air spring piston assembly welding processing tool, which comprises a placing cylinder 1, a plurality of groups of communication grooves 2 are formed in the placing cylinder 1 in the circumferential direction, a rotating shaft 3 is rotationally connected to the inner wall of the placing cylinder 1 on the upper side of the communication grooves 2 through a deep groove ball bearing, a gear 4 is fixedly connected to the middle part of the rotating shaft 3 through a flat key, a rotating plate 5 is fixedly connected to the outer side of the rotating shaft 3 through welding, a lifting rod 6 is slidingly installed in the center of the placing cylinder 1, four groups of racks 7 are fixedly connected to the outer side of the lifting rod 6 in the circumferential direction through bolts, the racks 7 are engaged with the gear 4, the axial movement of the lifting rod 6 drives the gear 4 to rotate, thereby driving the rotating plate 5 to open and close, two groups of first lugs 9 are fixedly connected to the lower part of the placing cylinder 1 through welding, a first sliding rod 10 is slidingly connected to the inside of one side first lug 9 through a sliding bearing, first connecting frames 12 are fixedly connected to the two ends of the first sliding rod 10 through welding, an upper communication hole 13 opposite to the lifting rod 6 is formed in the middle part of the first connecting frame 12, a sliding box 17 is slidingly installed on the outer side of the first connecting frame 12, a lower communication hole 19 matched with the upper communication hole 13 is formed in the lower part of the rear side of the sliding box 17, the upper communication hole 13 and the lower communication hole 19 are coaxial and used for the outer push rod 23 to pass through, a second connecting frame 20 is fixedly connected to the rear side of the lower part of the sliding box 17 through welding, a first hydraulic cylinder 21 is fixedly connected to the lower part of the second connecting frame 20 through a bolt, an inner push rod 22 is fixedly connected to the output end of the first hydraulic cylinder 21 through a threaded connection after penetrating the through hole of the second connecting frame 20, an outer push rod 23 is slidingly connected to the outer side of the inner push rod 22 through a guide sleeve, and the outer push rod 23 is slidingly connected to the inside of the lower communication hole 19 through a clearance fit;

[0024] The other side of the first connecting frame 12 is rotationally connected to a first threaded rod 11 through a rolling bearing, the first threaded rod 11 is threadedly connected to the inside of the other side first lug 9 through a threaded hole, and rotating the first threaded rod 11 can drive the first lug 9 to drive the placing cylinder 1 to move axially along the first sliding rod 10, so that the height of the placing cylinder 1 is adjusted;

[0025] The two sides of the first connecting frame 12 are fixedly connected to second lugs 14 through welding, one side second lug 14 is slidingly connected to a second sliding rod 15 through a sliding bearing, the two ends of the second sliding rod 15 are fixedly welded to the sliding box 17, the side wall of the other side of the sliding box 17 is rotationally connected to a second threaded rod 16 through a rolling bearing, and the second threaded rod 16 is threadedly connected to the inside of the other side second lug 14 through a threaded hole; the outer side of the sliding box 17 is fixedly connected to a motor 18 through a bolt, the power output end of the motor 18 is fixedly connected to one end of the second threaded rod 16 through a shaft coupling, the motor 18 drives the second threaded rod 16 to rotate, can drive the sliding box 17 to move horizontally along the second sliding rod 15, and then the placing cylinder 1 is moved to a processing position;

[0026] The first spring 8 is fixedly connected between the upper part of the lifting rod 6 and the inner wall of the placing cylinder 1 in a hook and welding combination mode, and is used for automatic reset of the lifting rod 6;

[0027] The third connecting ears 24 are fixedly connected to the lower part of the outer push rod 23 through welding on both sides, the fourth connecting ears 25 are fixedly connected to the lower part of the inner push rod 22 through welding on both sides, the third sliding rod 26 is fixedly connected to the lower part of the third connecting ears 24 through welding, the fixed sheet 27 is fixedly connected to the lower part of the third sliding rod 26 after penetrating the through hole of the fourth connecting ears 25, the fixed sheet 27 is used for limiting the sliding stroke of the third sliding rod 26, the second spring 28 is fixedly connected between the fixed sheet 27 and the fourth connecting ears 25, the second spring 28 is sleeved outside the third sliding rod 26, the second spring 28 is a compression spring, which can buffer the lifting impact force of the outer push rod 23, and prevent the support from being invalid due to improper rising height;

[0028] The third connecting frames 29 are fixedly connected to both sides of the sliding box 17 through welding, the processing table 30 is fixedly connected to the upper part of the third connecting frames 29 through bolts, the insertion slot 31 is formed in the middle of the processing table 30 and faces the placing cylinder 1, the support frame 32 is fixedly connected to the upper side of the middle of the processing table 30 through welding, the second hydraulic cylinder 33 is fixedly connected to the upper part of the support frame 32 through bolts, the power end of the second hydraulic cylinder 33 penetrates the through hole of the support frame 32 and is fixedly connected to the lifting plate 34 through threaded connection, the heater 35 is fixedly connected to the lower part of the lifting plate 34 through bolts, the electric welding head 36 is fixedly connected to the lower part of the heater 35 through welding, the heater 35 is of a resistance type heating structure and is used for preheating the electric welding head 36, and the electric welding head 36 is used for realizing welding of the gas spring support rod and the piston;

[0029] The support plate 37 is fixedly connected to the lower part of the processing table 30 through welding, the base 38 is fixedly connected to the lower part of the support plate 37 through welding, the base 38 is a rectangular steel plate and is used for supporting the entire tooling and improving stability.

[0030] Working principle: when the gas spring support rod to be welded is vertically sleeved outside the placing cylinder 1, the motor 18 is started, the power end of the motor 18 drives the second threaded rod 16 to rotate, the second threaded rod 16 is driven to move horizontally along the second sliding rod 15 in cooperation with the thread of the second lug 14, the placing cylinder 1 is driven to move by the first connecting frame 12, until the lower end of the gas spring support rod is inserted into the insertion slot 31 of the processing table 30, precise positioning is completed, the first hydraulic cylinder 21 is started, the output end thereof is stretched out and drives the inner push rod 22 to move upwards, the inner push rod 22 drives the outer push rod 23 to slide upwards along the lower communication hole 19 through the elastic force of the second spring 28, the upper end of the outer push rod 23 is in contact with the lower end of the lifting rod 6 after passing through the upper communication hole 13, and the lifting rod 6 is driven to move upwards along the linear sliding rail, when the lifting rod 6 rises, the outer side gear rack 7 is in meshing transmission with the gear 4, the gear 4 is driven to rotate synchronously with the rotating shaft 3, the rotating shaft 3 drives the outer rotating plate 5 to rotate to the outside of the placing cylinder 1, until the outer side wall of the rotating plate 5 is closely combined with the inner wall of the gas spring support rod, inner support fixation is realized, in this process, the second spring 28 can be self-adaptively compressed or elongated according to the rising height of the outer push rod 23, so that the unstable support caused by height deviation is avoided, according to the welding requirement, the first threaded rod 11 is rotated, the placing cylinder 1 is driven to move axially along the first sliding rod 10 in cooperation with the thread of the first lug 9, the height of the gas spring support rod is adjusted, so that the welding position of the gas spring support rod with different heights can be contacted when the electric welding head 36 is lowered, the heater 35 is started to preheat the electric welding head 36, after preheating is completed, the second hydraulic cylinder 33 is started, the output end thereof is stretched out and drives the lifting plate 34, the heater 35 and the electric welding head 36 to move downwards synchronously, until the electric welding head 36 contacts the welding position of the gas spring support rod and the piston, welding is completed.

[0031] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous modifications and changes can be made to the embodiments without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A welding fixture for an air spring piston assembly, comprising a placement cylinder (1), characterized in that: The placement cylinder (1) has several sets of connecting grooves (2) inside. A rotating shaft (3) is rotatably connected to the upper side of the connecting groove (2). A gear (4) is fixedly connected to the middle of the rotating shaft (3). A rotating plate (5) is fixedly connected to the outer side of the rotating shaft (3). A lifting rod (6) is slidably connected inside the placement cylinder (1). Four sets of racks (7) are fixedly connected to the outer side of the lifting rod (6). The racks (7) mesh with the gears (4). Two sets of first lugs (9) are fixedly connected to the lower sides of the placement cylinder (1). A first sliding rod (10) is slidably connected inside one of the first lugs (9). A first connecting frame (12) is fixedly connected to both ends of the first sliding rod (10). The first connecting frame (12) has an upper connecting hole (13) in the middle that faces the lifting rod (6). A sliding box (17) is slidably connected to the outside of the first connecting frame (12). A lower connecting hole (19) that matches the upper connecting hole (13) is opened on the lower rear side of the sliding box (17). A second connecting frame (20) is fixedly connected to the lower rear side of the sliding box (17). A first hydraulic cylinder (21) is fixedly connected to the lower part of the second connecting frame (20). An inner push rod (22) is fixedly connected to the output end of the first hydraulic cylinder (21) through the second connecting frame (20). An outer push rod (23) is slidably connected to the outside of the inner push rod (22). The outer push rod (23) is slidably connected to the inside of the lower connecting hole (19).

2. The welding fixture for an air spring piston assembly according to claim 1, characterized in that: The first connecting frame (12) is rotatably connected to the other side of the first threaded rod (11), which is threaded to the inside of the first lug (9) on the other side.

3. The welding fixture for an air spring piston assembly according to claim 1, characterized in that: The first connecting frame (12) is fixedly connected to two second lugs (14) on both sides. A second sliding rod (15) is slidably connected inside one of the second lugs (14). The two ends of the second sliding rod (15) are fixedly connected to the sliding box (17). A second threaded rod (16) is rotatably connected inside the other side of the sliding box (17). The second threaded rod (16) is threadedly connected to the inside of the second lug (14) on the other side. A motor (18) is fixedly connected to the outside of the sliding box (17). The power end of the motor (18) is fixedly connected to the second threaded rod (16).

4. The welding fixture for an air spring piston assembly according to claim 1, characterized in that: A first spring (8) is fixedly connected between the upper part of the lifting rod (6) and the inner wall of the placement cylinder (1).

5. The welding fixture for an air spring piston assembly according to claim 1, characterized in that: The lower sides of the outer push rod (23) are fixedly connected to the third lugs (24), the lower sides of the inner push rod (22) are fixedly connected to the fourth lugs (25), the lower part of the third lugs (24) is fixedly connected to the third sliding rod (26), the lower part of the third sliding rod (26) passes through the fourth lugs (25) and is fixedly connected to the fixing piece (27), and the fixing piece (27) and the fourth lugs (25) are fixedly connected to the second spring (28), which is sleeved on the outside of the third sliding rod (26).

6. The welding fixture for an air spring piston assembly according to claim 1, characterized in that: The sliding box (17) is fixedly connected to a third connecting frame (29) on both sides. A processing table (30) is fixedly connected to the upper part of the third connecting frame (29). An insertion slot (31) facing the placement cylinder (1) is opened in the middle of the processing table (30). A support frame (32) is fixedly connected to the upper middle part of the processing table (30). A second hydraulic cylinder (33) is fixedly connected to the upper part of the support frame (32). The power end of the second hydraulic cylinder (33) passes through the support frame (32) and is fixedly connected to a lifting plate (34). A heater (35) is fixedly connected to the lower part of the lifting plate (34). An electric welding head (36) is fixedly connected to the lower part of the heater (35).

7. The welding fixture for an air spring piston assembly according to claim 6, characterized in that: The processing table (30) is fixedly connected to a support plate (37) at its lower part, and a base (38) is fixedly connected to the lower part of the support plate (37).

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