Distance-adjustable bearing assembling tool

Abstract

The utility model discloses a distance-adjustable bearing assembling tool. The distance-adjustable bearing assembling tool comprises an upper die, a lower die, a guide rod, a lifting mechanism, a press-fitting mechanism and a controller, the four guide rods are fixed to the four corners of the lower die, through holes corresponding to the guide rails in position and size are formed in the four corners of the upper die, and the upper die is driven by a lifting mechanism to do linear motion in the direction of the guide rods. The upper surface of the lower die and the lower surface of the upper die are provided with die grooves which are opposite in position and used for clamping a bearing, and the center of the die groove of the upper die is further provided with a receding hole. The press-fitting mechanism comprises a fixing base fixed above the receding hole, a lifting device is installed on the upper portion of the fixing base, and the lifting device drives a press-fitting cylinder to vertically move in the receding hole. According to the utility model, the distance between the sealing element and the dustproof cover in the mounted bearing can be accurately controlled, and compared with the existing tool, the bearing sealing element press-fitting device has obvious advantages.

Description

Technical Field

[0001] The utility model relates to the field of bearing processing, in particular to a bearing assembly tool with adjustable distance. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotational accuracy. Bearing products all have a fatal weakness, which is the dustproof effect during operation. Once dust or other foreign matter enters the rolling elements of the bearings, the bearing life will be directly reduced and seriously scrapped. Assembling bearings with designed tooling can accurately control the ideal dustproof distance between seals and dust covers, and the stability and consistency are very high, which is of key importance to the life of the bearings. For example, application number: CN201720483129.1 proposes a hub bearing combination seal assembly tooling, which is one of the technical solutions for assembling bearings using tooling. However, it is impossible to adjust and control the distance between the seals and dust covers during installation. Summary of the Invention

[0003] In order to accurately control the spacing between the dust cover and the seal when assembling the bearing, the utility model proposes an adjustable bearing assembly tool, whose structure includes: an upper mold, a lower mold, a guide rod, a lifting mechanism, a press-fitting mechanism, and a controller; the guide rods are four and fixed to the four corners of the lower mold, and the four corners of the upper mold have through holes corresponding to the position and size of the guide rails. The upper mold is driven by the lifting mechanism and moves linearly along the guide rod direction; the upper surface of the lower mold and the lower surface of the upper mold are provided with mold grooves that are positioned opposite to each other and are used to clamp the bearing, and the center of the mold groove of the upper mold is also provided with a clearance hole; the press-fitting mechanism includes: a fixed seat fixed above the clearance hole, and a lifting device is installed on the upper part of the fixed seat, and the lifting device drives the press-fitting cylinder to move vertically in the clearance hole; the controller controls the operation of the pressing mechanism and the lifting mechanism.

[0004] Preferably, the lifting device includes: a through-type linear motor, a screw rod A passing through the center of the fixing seat, and the lower end of the screw rod A is fixed to the top of the press cylinder.

[0005] Preferably, the press-fitting cylinder and the fixing seat are both cylindrical and hollow, and both have open and annular bottoms; the outer diameter of the press-fitting cylinder is equal to the aperture of the clearance hole and also equal to the inner diameter of the fixing seat.

[0006] Preferably, a pressing ring is provided in the annular portion between the relief hole and the die groove of the upper die, and the lower surface of the pressing ring is provided with anti-slip grooves or subjected to surface roughening treatment.

[0007] Preferably, the lifting mechanism includes: a splint fixed to the upper mold by bolts, a slider integrated with the splint, the slider slides up and down in a vertically arranged guide rail, the slider is provided with a thread running through the upper and lower parts and is sleeved on the outside of the screw rod B, the upper part of the screw rod B is fixed to the output shaft of the stepper motor and is driven to rotate by it, the lower part is movably connected to the base, and the base is fixed to the lower mold.

[0008] During assembly, the utility model first places the bearing in the die groove of the lower die, places the seal at the position to be pressed, lowers the upper die to press against the bearing, and then controls the lifting device by the controller to lower the pressing cylinder by a set distance, installs the seal into the set position, and then raises the upper die, places the dust cover at the position to be pressed, lowers the upper die to press against the bearing, and controls the lifting device by the controller to lower the pressing cylinder by a set distance, installs the seal into the set position. The distance set by the controller can accurately control the distance between the seal and the dust cover in the bearing after installation, which has obvious advantages over existing tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] Figure 1 It is a three-dimensional diagram of the utility model.

[0011] Figure 2 It is the front view of the utility model.

[0012] Figure 3 It is a side view of the utility model.

[0013] Figure 4 It is a top view of the utility model.

[0014] Figure 5 for Figure 4 AA cross-sectional view.

[0015] In the figure: 1. Upper die; 2. Lower die; 3. Die groove; 4. Guide rod; 5. Fixed seat; 6. Through-type linear motor; 7. Screw A; 8. Lifting mechanism; 9. Stepper motor; 10. Guide rail; 11. Clamp; 12. Base; 13. Pressing cylinder; 14. Pressing ring. DETAILED DESCRIPTION

[0016] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0017] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. There may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed may be through some communication interface, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

[0020] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0021] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. Example 1

[0022] like Figure 1-Figure 5 As shown, the adjustable bearing assembly tooling of the present invention comprises: an upper die 1, a lower die 2, a guide rod 4, a lifting mechanism 8, a press-fitting mechanism, and a controller; the guide rods 4 are four and fixed to the four corners of the lower die 2, and the four corners of the upper die 1 have through holes corresponding to the position and size of the guide rails 10. The upper die 1 is driven by the lifting mechanism 8 and moves linearly along the guide rods 4; the upper surface of the lower die 2 and the lower surface of the upper die 1 are provided with mold grooves 3 that are positioned opposite to each other and are used to clamp the bearing. The shape and size of the mold grooves 3 match the bearing to be processed. The center of the mold groove 3 of the upper die 1 is also provided with a clearance hole for making way for a press-fitting cylinder 13; the press-fitting mechanism comprises: a fixed seat 5 fixed above the clearance hole, a lifting device is installed at the upper center of the fixed seat 5, the fixed seat 5 is used to connect the upper die 1 and the lifting device, and the lifting device drives the press-fitting cylinder 13 to move vertically in the clearance hole; the controller controls the operation of the press-fitting mechanism and the lifting mechanism 8.

[0023] More specifically, the lifting device includes: a through-type linear motor 6, a screw rod A7 passing through the center of the fixed seat 5, and the lower end of the screw rod A7 is fixed to the top of the press cylinder 13. In this example, the through-type linear motor 6 is used to enable the press cylinder 13 fixed to the bottom of its output shaft to achieve vertical linear motion.

[0024] More specifically, the press-fitting cylinder 13 and the fixing seat 5 are both cylindrical and hollow, and the bottoms of both are open and annular; the outer diameter of the press-fitting cylinder 13 is equal to the aperture of the clearance hole, and is also equal to the inner diameter of the fixing seat 5. In this example, the internal space of the fixing seat 5 is such that when the press-fitting cylinder 13 rises to rest against the inner top of the fixing seat 5, the bottom of the press-fitting cylinder 13 and the bottom of the pressing ring 14 are on the same horizontal plane.

[0025] More specifically, a pressing ring 14 is installed in the annular portion between the clearance hole and the die groove 3 of the upper die 1. The lower surface of the pressing ring 14 is a frosted surface to prevent the bearing from rotating during clamping.

[0026] More specifically, the lifting mechanism 8 includes: a splint 11 fixed to the upper mold 1 by bolts, a slider integrated with the splint 11, the slider slides up and down in a vertically arranged guide rail 10, the slider is provided with a thread running through the upper and lower parts and is sleeved on the outside of the screw rod B, the upper part of the screw rod B is fixed to the output shaft of the stepper motor 9 and is driven to rotate by it, and the lower part is movably connected to the base 12, and the base 12 is fixed to the lower mold 2.

[0027] During assembly, the utility model first places the bearing in the die groove of the lower die, places the seal at the position to be pressed, lowers the upper die to press against the bearing, and then controls the lifting device by the controller to lower the pressing cylinder by a set distance, installs the seal into the set position, and then raises the upper die, places the dust cover at the position to be pressed, lowers the upper die to press against the bearing, and controls the lifting device by the controller to lower the pressing cylinder by a set distance, installs the seal into the set position. The distance set by the controller can accurately control the distance between the seal and the dust cover in the bearing after installation, which has obvious advantages over existing tooling.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing assembly tool with adjustable spacing, characterized by: include: An upper die, a lower die, guide rods, a lifting mechanism, a press-fitting mechanism, and a controller; the guide rods are four and fixed to the four corners of the lower die; the four corners of the upper die have through holes corresponding in position and size to the guide rails; the upper die is driven by the lifting mechanism to move linearly along the guide rods; the upper surface of the lower die and the lower surface of the upper die are provided with opposing die grooves for clamping the bearing; the center of the die groove of the upper die is also provided with a clearance hole; the press-fitting mechanism includes a fixed seat fixed above the clearance hole, a lifting device installed on the upper portion of the fixed seat, and the lifting device drives the press-fitting cylinder to move vertically within the clearance hole; The controller controls the operation of the pressing mechanism and the lifting mechanism.

2. The adjustable bearing assembly tool according to claim 1, characterized in that: The lifting device includes: a through-type linear motor, a screw rod A passing through the center of a fixing seat, and a lower end of the screw rod A is fixed to the top of a press cylinder.

3. The adjustable bearing assembly tool according to claim 2, characterized in that: The press-fitting cylinder and the fixing seat are both cylindrical and hollow, and both have open and annular bottoms. The outer diameter of the press-fitting cylinder is equal to the aperture of the clearance hole and also equal to the inner diameter of the fixing seat.

4. The adjustable bearing assembly tool according to claim 3, characterized in that: A pressing ring is arranged on the annular portion between the relief hole and the die groove of the upper die. The lower surface of the pressing ring is provided with anti-slip grooves or subjected to surface roughening treatment.

5. The adjustable bearing assembly tool according to claim 4, characterized in that: The lifting mechanism includes: a splint fixed to the upper mold by bolts, a slider integrated with the splint, the slider slides up and down in a vertically arranged guide rail, the slider is provided with a thread running through the upper and lower parts and is sleeved on the outside of the screw rod B, the upper part of the screw rod B is fixed to the output shaft of the stepper motor and is driven to rotate by it, the lower part is movably connected to the base, and the base is fixed to the lower mold.

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