Double-end milling device with steel sleeve and oil groove

Abstract

The utility model discloses a kind of steel sleeve oil groove double-end milling device, including shell, transmission part and adjusting part are equipped in the shell, the shell both ends are equipped with milling chuck, the milling chuck is connected with the transmission part power, the milling chuck is connected with the shell sliding by adjusting part;The adjusting part includes the worm wheel being set in the shell and being rotatably connected with the shell and the adjusting screw being cooperated with the worm wheel, one end of the adjusting screw extends to the outside of the shell, the worm wheel both sides are threadedly connected with screw rod, the screw rod is connected with the shell sliding, the end of the screw rod is used for the axial fixed connection of the milling chuck, the present application is equipped with two milling chucks on shell, so two oil grooves can be machined in steel sleeve simultaneously, greatly increase processing efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of steel sleeve oil groove processing equipment, specifically a double-head milling device for steel sleeve oil grooves. Background Technology

[0002] Steel sleeves are among the most vulnerable components in hydraulic cylinders for construction machinery, and there is a large market demand for them. Various types of oil storage structures are typically machined into the inner wall of the steel sleeve to reduce friction between the pin and the sleeve during cylinder operation.

[0003] The internal figure-eight oil groove structure is widely used due to its simple structure and good lubrication effect. However, the single power head of traditional equipment (devices) leads to low processing efficiency and high part cost. Therefore, there is an urgent need to improve and upgrade this type of steel sleeve oil groove processing method. Utility Model Content

[0004] The purpose of this invention is to provide a double-head milling device for steel sleeve oil grooves to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A double-head milling device for steel sleeve oil grooves includes a housing, a transmission part and an adjustment part inside the housing, and milling chucks at both ends of the housing. The milling chucks are poweredly connected to the transmission part, and the milling chucks are slidably connected to the housing through the adjustment part. The adjusting part includes a worm gear disposed inside the housing and rotatably connected to the housing, and an adjusting screw cooperating with the worm gear. One end of the adjusting screw extends to the outside of the housing. Lead screws are threaded to both sides of the worm gear. The lead screws are slidably connected to the housing. The end of the lead screw is used for axial fixed connection of the milling chuck.

[0006] As a further embodiment of this utility model: the transmission part includes a power component, one end of which is connected to a drive shaft, the drive shaft is fixedly connected to a drive bevel gear, the inner side of the milling chuck is poweredly connected to a driven shaft, and driven bevel gears are sleeved on both ends of the driven shaft, the driven bevel gears meshing with the drive bevel gears.

[0007] As a further embodiment of this utility model: the driven bevel gear is rotatably connected to the housing through a first bearing, and the driven bevel gear is circumferentially fixedly connected to the driven shaft and axially slidably connected.

[0008] As a further embodiment of this invention: the worm gear is rotatably connected to the housing via a second bearing.

[0009] As a further embodiment of this utility model: the worm gear is provided with a threaded hole, and the two ends of the threaded hole are threadedly connected to a lead screw, which is axially and circumferentially fixedly connected to the driven shaft.

[0010] As a further embodiment of this utility model: a limiting head is provided at one end of the lead screw near the driven shaft, and a limiting hole is provided inside the driven shaft, with the limiting head engaging with the limiting hole.

[0011] As a further embodiment of this utility model: a limiting block is provided inside the housing, and the lead screw is circumferentially fixedly connected to the housing and axially slidably connected through the limiting block.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting two milling chucks on the housing, two oil grooves can be machined in the steel sleeve at the same time, which greatly increases the processing efficiency. At the same time, this application also sets an adjustment device, which can easily adjust the distance between the two milling chucks, thereby meeting the needs of processing oil grooves of different depths and improving adaptability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure in this embodiment; Figure 2 , Figure 3 This is a schematic diagram of the adjustment section structure in this embodiment; Figure 4 This is a sectional view of the steel sleeve in this embodiment; In the diagram: 1-Housing, 2-Driving bevel gear, 3-Driven shaft, 4-Driven bevel gear, 5-Lead screw, 6-Worm gear, 7-Adjusting screw, 8-Limit block, 9-Milling chuck, 10-First bearing, 11-Second bearing, 12-Power assembly, 13-Driving shaft, 14-Limit hole, 15-Limit head, 16-Threaded hole, 17-Steel sleeve, 18-Oil groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-2In this embodiment of the utility model, a double-head milling device for steel sleeve oil groove includes a housing 1, a transmission part and an adjustment part are provided inside the housing 1, and milling chucks 9 are provided at both ends of the housing 1. The milling chucks 9 are poweredly connected to the transmission part, and the milling chucks 9 are slidably connected to the housing 1 through the adjustment part.

[0016] The transmission unit includes a power assembly 12. In this embodiment, the power assembly uses a power motor. One end of the power assembly 12 is connected to a drive shaft 13. The drive shaft 13 is fixedly connected to a drive bevel gear 2. The inner side of the milling chuck 9 is poweredly connected to a driven shaft 3. Driven bevel gears 4 are sleeved on both ends of the driven shaft 3. The driven bevel gears 4 mesh with the drive bevel gear 2. The driven bevel gears 4 are rotatably connected to the housing 1 through a first bearing 10. The driven bevel gears 4 are circumferentially fixedly connected to the driven shaft 3 and axially slidingly connected.

[0017] like Figure 3 As shown, the adjustment unit includes a worm gear 6 disposed inside the housing 1 and rotatably connected to the housing 1, and an adjustment screw 7 cooperating with the worm gear 6. The worm gear 6 is rotatably connected to the housing 1 through a second bearing 11. One end of the adjustment screw 7 extends to the outside of the housing 1. A lead screw 5 is threadedly connected to both sides of the worm gear 6. In this embodiment, a threaded hole 16 is provided inside the worm gear 6, and the two ends of the threaded hole 16 are threadedly connected to the lead screw 5. The lead screw 5 is axially fixedly connected to the driven shaft 3 and circumferentially slidably connected. A limit head 15 is provided at one end of the lead screw 5 near the driven shaft 3. A limit hole 14 is provided inside the driven shaft 3. The limit head 15 is engaged in the limit hole 14. A limit block 8 is provided inside the housing 1. The lead screw 5 is circumferentially fixedly connected to the housing 1 and axially slidably connected through the limit block 8, thereby making the lead screw 5 slidably connected to the housing 1, but not rotatable. The end of the lead screw 5 is used for axially fixed connection to the milling chuck 9.

[0018] When this utility model is in use, if it is necessary to process the oil groove 18 on the steel sleeve 17, the milling chucks 9 on both sides are first adjusted according to the inner diameter of the steel sleeve 17 and the depth of the oil groove 18 to be processed. During adjustment, it is only necessary to rotate the adjusting screw 7. The rotation of the adjusting screw 7 will drive the worm wheel 6 to rotate. Since the worm wheel 6 is threaded with lead screws 5 on both sides, and the lead screws can only slide axially and cannot rotate due to the limitation of the limit block 8, the rotation of the worm wheel 6 will drive the lead screws 5 to extend or retract. During the extension and retraction of the lead screws 5, the driven shafts 3 on both sides will slide axially in the driven bevel gears 4, thereby adjusting the position of the milling chucks 9 on both sides to achieve the purpose of adjusting the distance between the milling chucks 9 on both sides.

[0019] After adjustment, the end of the housing 1 equipped with the milling chuck 9 is inserted into the steel sleeve 17. The drive shaft 13 is driven to rotate by the power assembly 12. The drive shaft 13 drives the driven bevel gear 4 to rotate through the drive bevel gear 2. Since the driven bevel gear 4 is circumferentially fixed and axially slidingly connected to the driven shaft 3, the driven bevel gear 4 drives the driven shaft 3 to rotate. The driven shaft 3 and the lead screw are axially fixed and circumferentially rotating. Therefore, the rotation of the driven shaft 3 will not drive the lead screw 5 to rotate. The milling chuck 9 is driven to rotate by the driven shaft 3. The rotation of the milling chuck 9 can mill the inner wall of the steel sleeve 17. In addition, the shape of the oil groove 18 can be controlled by the rotation feed of the housing.

[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A double-head milling device for steel sleeve oil grooves, comprising a housing (1), characterized in that, The housing (1) is provided with a transmission part and an adjustment part. Milling chucks (9) are provided at both ends of the housing. The milling chucks (9) are poweredly connected to the transmission part. The milling chucks (9) are slidably connected to the housing (1) through the adjustment part. The adjustment unit includes a worm gear (6) disposed inside the housing (1) and rotatably connected to the housing (1) and an adjustment screw (7) cooperating with the worm gear (6). One end of the adjustment screw (7) extends to the outside of the housing (1). The worm gear (6) is threaded with lead screws (5) on both sides. The lead screws (5) are slidably connected to the housing (1). The end of the lead screw (5) is used for axial fixed connection of the milling chuck (9).

2. The double-head milling device for steel sleeve oil grooves according to claim 1, characterized in that, The transmission unit includes a power assembly (12), one end of which is connected to a drive shaft (13). The drive shaft (13) is fixedly connected to a drive bevel gear (2). The inner side of the milling chuck (9) is poweredly connected to a driven shaft (3). Driven bevel gears (4) are sleeved on both ends of the driven shafts (3), and the driven bevel gears (4) mesh with the drive bevel gears (2).

3. The double-head milling device for steel sleeve oil grooves according to claim 2, characterized in that, The driven bevel gear (4) is rotatably connected to the housing (1) via the first bearing (10). The driven bevel gear (4) is circumferentially fixedly connected to the driven shaft (3) and axially slidingly connected.

4. The double-head milling device for steel sleeve oil grooves according to claim 1, characterized in that, The worm gear (6) is rotatably connected to the housing (1) via the second bearing (11).

5. A double-head milling device for steel sleeve oil grooves according to claim 3, characterized in that, The worm gear (6) is provided with a threaded hole (16), and the two ends of the threaded hole (16) are threadedly connected to a lead screw (5). The lead screw (5) is axially fixedly connected to the driven shaft (3) and circumferentially slidingly connected.

6. The double-head milling device for steel sleeve oil grooves according to claim 5, characterized in that, A limiting head (15) is provided at one end of the lead screw (5) near the driven shaft (3), and a limiting hole (14) is provided inside the driven shaft (3). The limiting head (15) is engaged with the limiting hole (14).

7. The double-head milling device for steel sleeve oil grooves according to claim 1, characterized in that, The housing (1) is provided with a limiting block (8), and the lead screw (5) is circumferentially fixedly connected to the housing (1) and axially slidably connected through the limiting block (8).

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