Hydraulic tensioner pull rod assembling device

Abstract

The utility model discloses a hydraulic tensioner pull rod assembling device which comprises a rack body, a pull rod press-fitting station for pressing a pull rod into a preset position in a cylinder body is arranged in the rack body, the pull rod press-fitting station comprises a positioning tool for the cylinder body and a jacking tool, and the jacking tool is provided with a jacking rod extending out in the axial direction. The telescopic moving direction of the jacking rod points to the clamping center of the positioning tool, the positioning tool positions the cylinder body at the position coaxial with the jacking rod, a pull rod is arranged in the cylinder body in advance, the jacking pressure of the jacking rod directly or indirectly acts on the end of the pull rod, and the pull cylinder is pushed into the preset position in the cylinder body. According to the hydraulic tensioner pull rod assembling device, enough jacking force can be applied to the pull rod through the press-fitting cylinder body, a pull cylinder can be conveniently installed at a preset position, if the stroke of the press-fitting cylinder body is not enough due to the installation position, the jacking rod can be added to indirectly transmit the pushing force of the press-fitting cylinder body, and the press-fitting cylinder body can be conveniently installed. And the tool is effectively suitable for press fitting of cylinders with different specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to part assembly equipment field, concretely relates to a hydraulic tensioner pull rod assembly device. BACKGROUND

[0002] Hydraulic tensioner is a kind of equipment for keeping the proper tension of belt, chain or cable in transmission system. It is widely used in industrial machinery, conveying system and automobile engine, etc. to ensure that these systems can run efficiently and smoothly. The main components of hydraulic tensioner include hydraulic cylinder, piston and piston rod, sealing element, spring.

[0003] In the assembly production process of hydraulic tensioner, pull rod needs to be installed at one end of piston cylinder body, and after automatic cleaning of cylinder body, sealing ring is installed on pull rod, and then is pressed into cylinder body. Since sealing ring is arranged between cylinder body and pull cylinder, there is certain resistance when pull rod is pressed into cylinder body. In the prior art, manual pressing is adopted, which is not only time-consuming and laborious, but also low in assembly efficiency. Secondly, after pressing of pull cylinder, stop pin needs to be installed on the side wall of cylinder body, and manual punching is adopted, which has poor precision.

[0004] In view of the above, it is necessary to provide a hydraulic tensioner pull rod assembly device to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model aims at overcoming the defects in the prior art, and provides a hydraulic tensioner pull rod assembly device.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a hydraulic tensioner pull rod assembly device, comprising a rack body, a pull rod pressing station for pressing pull rod into cylinder body to a predetermined position is arranged in the rack body, the pull rod pressing station comprises a positioning tool for cylinder body and a pressing tool, the pressing tool has a pressing rod extending in axial direction, the extension and retraction direction of the pressing rod points to the clamping center of the positioning tool, the positioning tool positions the cylinder body at a position coaxial with the pressing rod, a pull rod is prearranged in the cylinder body, and the pushing pressure of the pressing rod directly or indirectly acts on the end of the pull rod, so as to push the pull cylinder into the cylinder body to a predetermined position.

[0007] The pressing tool comprises a top mounting plate arranged above the inside of the rack body and parallel to the machining platform, a pressing cylinder is arranged on the top mounting plate, a pressing rod is arranged at the free end of the pressing cylinder, and the pressing rod is arranged vertically to the top mounting plate; the top mounting plate is supported and fixed above the machining platform by a plurality of supporting columns.

[0008] Further, the positioning tool comprises clamping units oppositely arranged, the two clamping units are provided with clamping ends moving relative to each other, and the two clamping ends clamp the positioning cylinder body.

[0009] Further, the intermediate push rod is arranged between the pull rod and the top pressing rod, both ends of the intermediate push rod are provided with positioning sleeves, the positioning sleeves are respectively sleeved on the end portions of the pull rod and the top pressing rod, and the side portions of the positioning sleeves are provided with side openings, so that the pull rod and the top pressing rod are transversely moved into the positioning sleeves from the side openings.

[0010] Further, the pull rod pressing station is provided with a punching station on one side, the punching station is provided with a positioning tool, and the punching station further comprises two punching machine positions; the positioning tool moves between the two punching machine positions, and the two punching machine positions punch the cylinder body in sequence.

[0011] Further, the processing platform is provided with a track frame, and the positioning tool is slidably arranged on the track frame; the positioning tool moves between the two punching machine positions through the track frame.

[0012] Further, the punching station is provided with a vibrating feeding disc on one side, and the vibrating feeding disc is used for arranging the direction of the stop pin and regularly feeding the stop pin to a predetermined position.

[0013] Further, the two punching machine positions are respectively a punching motor and a tapping motor moving in the vertical direction of the track frame, and the processing ends of the punching motor and the tapping motor are respectively provided with different types of drill bits.

[0014] The hydraulic tensioner pull rod assembly device has the advantages and beneficial effects that: the hydraulic tensioner pull rod assembly device can apply sufficient thrust to the pull rod through the pressing cylinder body, so that the pull cylinder can be conveniently installed to a predetermined position; if the pressing cylinder body has insufficient stroke due to the installation position, the top pressing rod can be added to indirectly transmit the thrust of the pressing cylinder body, so that the tooling device can adapt to pressing of pull cylinders of different specifications; the punching station is used for punching and tapping the cylinder body in sequence, so that the installation of the stop pin is facilitated, the vibrating feeding disc is arranged, and the stop pin can be regularly fed to the installation position. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure schematic view of the pull rod pressing station in the hydraulic tensioner pull rod assembly device;

[0016] Figure 2 is a setting schematic view of the intermediate push rod in the hydraulic tensioner pull rod assembly device;

[0017] Figure 3It is the structure schematic view of the punching station in the utility model Figure 2 The middle A-A section schematic view

[0018] Figure 4 It is the structure schematic view of the punching station in the utility model

[0019] In the figure: 1, frame body; 2, cylinder body; 3, pull rod; 4, pull rod press fitting station; 5, positioning tool; 6, top pressing tool; 7, top pressing rod; 8, top mounting plate; 9, press fitting cylinder body; 10, support column; 11, clamping unit; 12, clamping end; 13, positioning base; 14, clamping cylinder body; 15, guide rail; 16, middle push rod; 17, positioning sleeve; 18, side opening; 19, punching station; 20, punching machine station; 21, rail frame; 22, vibrating feeding disc; 23, punching motor; 24, tapping motor; 25, processing platform. DETAILED DESCRIPTION

[0020] The specific embodiments of the utility model are further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0021] A kind of hydraulic tensioner pull rod assembly device, including frame body 1, as shown in Figure 1 Frame body 1 is the mounting frame of integral equipment, frame body 1 is set processing platform 25 at a certain height position, pull rod 3 press fitting station and punching station 19 are respectively set on processing platform 25, respectively realize that pull rod 3 is press fitted into cylinder body 2, and the processing procedure of punching, tapping operation in the side wall of cylinder body 2 is realized;

[0022] The frame body 1 is equipped with the pull rod 3 press fitting station of press fitting pull rod 3 into the predetermined position in cylinder body 2, and the pull rod 3 press fitting station includes the positioning tool 5 of cylinder body 2 and top pressing tool 6, the top pressing tool 6 has top pressing rod 7 extending in axial direction, the telescopic moving direction of top pressing rod 7 is directed to the clamping center of positioning tool 5, when actually using, pull rod 3, cylinder body 2 are first washed automatically in previous step, so that its surface is clean, then enter the device and assemble, when assembling, existing assembly personnel installs sealing ring, so that pull rod 3 and cylinder body 2 do not leak hydraulic oil after installation gap after assembly.

[0023] Specifically, the top pressing tool 6 includes a top mounting plate 8 arranged inside and above the rack body 1 and parallel to the machining platform 25, and the top pressing rod 7 is arranged vertically to the top mounting plate 8; the top mounting plate 8 is supported and fixed above the machining platform 25 by a plurality of supporting columns 10. The top mounting plate 8 is provided with a pressing cylinder 9, and it should be noted that the type of the pressing cylinder 9 provided by the embodiment is not limited, and in use, a hydraulic oil cylinder, a pneumatic cylinder 2, or an electric telescopic cylinder can be used, and the setting direction of the pressing cylinder 9 is not limited, and the free end of the pressing cylinder 9 can be vertically telescopic, or a horizontal telescopic mode can be used; as shown in Figure 1 , the free end of the pressing cylinder 9 downwardly penetrates the top mounting plate 8 and is provided with the top pressing rod 7, so that the top pressing rod 7 moves in the vertical direction and the cylinder 2 is placed below the top pressing rod 7, and then the lower end of the pull rod 3 is placed in the cylinder 2 by the positioning tool 5, so that the upper end of the pull cylinder is aligned with the top pressing rod 7, and it can be understood that a part of the lower end of the pull rod 3 has been placed in the cylinder 2, so that the pull rod 3 and the cylinder 2 can maintain good coaxiality, so that the top pressing rod 7 can align the pull rod 3 when it moves downward.

[0024] The positioning tool 5 positions the cylinder 2 at a position coaxial with the top pressing rod 7, and the cylinder 2 is prearranged with the pull rod 3, as shown in Figure 1 , after the cylinder 2 is positioned by the positioning tool 5, the pull rod 3 can be placed in the cylinder 2 by a mechanical hand or manually, so that it freely falls into the cylinder 2, and the end of the pull rod 3 is directly or indirectly acted on by the pushing pressure of the top pressing rod 7, and the pull cylinder is pushed into the cylinder 2 to a predetermined position.

[0025] As shown in Figure 1 , the top pressing rod 7 directly abuts against the end of the pull rod 3 after it is extended, and with the force of the pressing cylinder 9, the pull rod 3 is gradually pressed into the predetermined position, thereby completing the pressing operation.

[0026] The tool can also be used for pressing different sizes of pull rods 3, and if shorter pull rods 3 are pressed, when the downward stroke of the top pressing rod 7 is insufficient, an intermediate push rod 16 can be arranged to indirectly press the pull rod 3 by the top pressing rod 7, and specifically, as shown in Figure 2 , 3As shown, both ends of the intermediate push rod 16 are provided with positioning sleeves 17, which are respectively sleeved on the end of the pull rod 3 and the end of the top pressing rod 7; in use, when the cylinder body 2 and the pull rod 3 are placed in the positioning tool 5, the intermediate push rod 16 is installed in the interval distance between the pull rod 3 and the top pressing rod 7, so that the length of the top pressing rod 7 can be supplemented by the intermediate push rod 16, and the end thereof can be in contact with the pull rod 3; and the side of the positioning sleeve 17 is provided with a side opening 18, so that the pull rod 3 and the top pressing rod 7 can be transversely moved into the positioning sleeve 17 from the side opening 18; in installation, the pull rod 3 can be transversely moved into the side opening 18, and the top pressing rod 7 can be transversely moved into the side opening 18; it can be understood that the side openings 18 of the positioning sleeves 17 at both ends of the intermediate push rod 16 are oriented in the same direction, so as to make up the interval distance between the pull rod 3 and the top pressing rod 7.

[0027] Further, the positioning tool 5 comprises opposite clamping units 11, and the two clamping units 11 are provided with clamping ends 12 that are relatively movable, and the two clamping ends 12 clamp the cylinder body 2; the clamping unit 11 comprises a positioning base 13, a clamping cylinder 14 and a guide rail 15, the positioning base 13 is provided with the guide rail 15, one end of the guide rail 15 is provided with the clamping cylinder 14, the clamping end 12 is slidably arranged in the guide rail 15, and the piston rod of the clamping cylinder 14 is connected to the clamping end 12. Figure 1 As shown, when the cylinder body 2 is placed between the two clamping ends 12, the clamping cylinders 14 on both sides are extended, so as to relatively push out the clamping ends 12 through the piston rods, so as to be clamped on the side wall of the cylinder body 2, thereby achieving clamping positioning; it can be understood that the clamping ends 12 on both sides are symmetrically moved, so as to keep the center clamping of the cylinder body 2. It should be noted that the type of the clamping cylinder 14 is not limited in the cylinder body 2 provided in the embodiments of the present application; in use, a hydraulic cylinder, a pneumatic cylinder or an electric telescopic cylinder can be used.

[0028] Further, the pull rod 3 pressing station is provided with a punching station 19, and the punching station 19 cooperates with the pull rod 3 pressing station; after the pull rod 3 is pressed in, the punching station 19 is moved to the side, and the cylinder body 2 is punched to install a stop pin for limiting the pull rod 3; specifically, the punching station 19 comprises two puncher positions 20, the positioning tool 5 is moved between the two puncher positions 20, and the two puncher positions 20 punch the cylinder body 2 in turn. Specifically, the functions of the two puncher positions 20 are punching and tapping respectively; after the cylinder body 2 is punched, the position is moved to tap the hole, so as to screw in the stop pin.

[0029] As shown, Figure 4As shown, the processing platform 25 is provided with a rail frame 21, and the positioning tool 5 is slidably arranged on the rail frame 21. The positioning tool 5 in the embodiment can have the same structure as the positioning tool 5 that is pressed into the tool 3, and symmetrical moving clamping units 11 are arranged on the two sides, respectively, and the clamping end 12 is controlled by the clamping cylinder 14 to clamp and position the cylinder 2. The difference is that the positioning tool 5 in the tool can be slidably displaced, and then moved between the two punching machine positions 20. Specifically, the positioning base 13 of the positioning tool 5 can be fixed on a sliding plate, and the sliding plate is a plate body that slides on the rail frame 21, so that the positioning tool 5 can move along the rail frame 21. When it is moved to the left end, the punching motor 23 is aligned with the punching position on the cylinder 2. Further, the two punching machine positions 20 are punching motors 23 and tapping motors 24 that move in the vertical direction of the rail frame 21, respectively. The processing ends of the punching motor 23 and the tapping motor 24 are provided with different types of drill bits. When the cylinder 2 moves to the left end, the punching motor 23 at the left end is controlled to move in the direction perpendicular to the rail frame 21, so that the drill bit drills a hole in the cylinder 2. Then, the cylinder 2 moves to the right end and is aligned with the tapping motor 24. It can be understood that after moving to the right end, the tapping drill bit can be aligned with the punching position on the cylinder 2. Similarly, the tapping motor 24 is controlled to move in the direction perpendicular to the rail frame 21, so that the tapping drill bit drills into the hole in the cylinder 2 to tap the hole. It should be noted that the moving direction of the punching machine position 20 in the embodiment is not limited in the application. When used, the punching motor 23 can be moved in the vertical direction of the rail frame 21, and the tapping motor 24 can be moved in the horizontal direction of the rail frame 21. Figure 4 As shown, the cylinder 2 is vertically placed, and the punching machine position 20 moves in the horizontal direction to punch the cylinder 2. Alternatively, the cylinder 2 can be horizontally positioned, the punching machine position 20 is arranged above, and the punching machine position 20 moves vertically downward to drill a hole in the cylinder 2.

[0030] The punching station 19 is provided with a vibrating feeding disc 22 on one side. Figure 4 As shown, the vibrating feeding disc 22 is used to arrange the stop pin in a direction and regularly feed it to a predetermined position. It can be understood that after the punching and tapping operations on the corresponding positions of the cylinder 2 in the foregoing processing mode, the stop pin can be transported to the predetermined position one by one through the vibrating feeding disc 22, and the stop pin can be installed in place through manual or mechanical arm automatic mode.

[0031] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection range of the present application.

Claims

1. A hydraulic tensioner rod assembly device comprising a frame body (1), characterized in that, The rack body (1) is provided with a pull rod (3) pressing station for pressing the pull rod (3) into the cylinder body (2) to the predetermined position, the pull rod (3) pressing station comprises a positioning tool (5) for the cylinder body (2) and a pressing tool (6), the pressing tool (6) has a pressing rod (7) extending in the axial direction, the extension direction of the pressing rod (7) is directed to the clamping center of the positioning tool (5), the positioning tool (5) positions the cylinder body (2) at a position coaxial with the pressing rod (7), the cylinder body (2) is pre-provided with the pull rod (3), the pressing force of the pressing rod (7) directly or indirectly acts on the end of the pull rod (3), and the pull cylinder is pushed into the cylinder body (2) to the predetermined position. The pressing tool (6) comprises a top mounting plate (8) arranged inside and above the rack body (1) and parallel to the machining platform (25), the top mounting plate (8) is provided with a pressing cylinder (9), the free end of the pressing cylinder (9) is provided with the pressing rod (7), and the pressing rod (7) is arranged vertically to the top mounting plate (8); the top mounting plate (8) is supported and fixed above the machining platform (25) by a plurality of supporting columns (10).

2. A hydraulic tensioner rod assembly as defined in claim 1, wherein, The positioning tool (5) comprises two clamping units (11) arranged oppositely, the two clamping units (11) are provided with clamping ends (12) moving relative to each other, the two clamping ends (12) clamp and position the cylinder body (2), the clamping unit (11) comprises a positioning base (13), a clamping cylinder (14) and a guide rail (15), the positioning base (13) is provided with the guide rail (15), one end of the guide rail (15) is provided with the clamping cylinder (14), and the clamping end (12) is slidably arranged in the guide rail (15); the piston rod of the clamping cylinder (14) is connected to the clamping end (12).

3. A hydraulic tensioner rod assembly as defined in claim 2, wherein, An intermediate push rod (16) is arranged between the pull rod (3) and the pressing rod (7), the two ends of the intermediate push rod (16) are provided with positioning sleeves (17), and the positioning sleeves (17) are respectively sleeved on the end of the pull rod (3) and the end of the pressing rod (7); the side of the positioning sleeve (17) is provided with a side opening (18), so that the pull rod (3) and the pressing rod (7) are transversely moved into the positioning sleeve (17) from the side opening (18).

4. The hydraulic tensioner rod assembly of claim 1, wherein: A punching station (19) is arranged on one side of the pull rod (3) pressing station, the positioning tool (5) is arranged on the punching station (19), the punching station (19) further comprises two puncher positions (20), the positioning tool (5) moves between the two puncher positions (20), and the two puncher positions (20) punch the cylinder body (2) in sequence.

5. A hydraulic tensioner rod assembly as defined in claim 4, wherein, The machining platform (25) is provided with a track frame (21), the positioning tool (5) is slidably arranged on the track frame (21), and the positioning tool (5) moves between the two puncher positions (20) through the track frame (21).

6. A hydraulic tensioner rod assembly as defined in claim 4, wherein, A vibrating feeding disc (22) is arranged on one side of the punching station (19), and the vibrating feeding disc (22) is used for arranging the stop pins in a direction and feeding the stop pins to the predetermined position regularly.

7. A hydraulic tensioner rod assembly as defined in claim 5, wherein, Two said puncher positions (20) are respectively punch motor (23) and tapping motor (24) moving along the vertical direction of track frame (21), and the machining ends of punch motor (23) and tapping motor (24) are respectively provided with different types of drill bits.

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