A positioning fixture for bearing processing

Abstract

The utility model provides a positioning fixture for bearing processing, including a base plate, a positioning mold and two end face pressing blocks, the positioning mold is arranged on the base plate, and the positioning mold is provided with a positioning curved surface adapted to the outer peripheral surface of the bearing, a plane positioning pressing plate and a discharge through hole, wherein the distance between the plane positioning pressing plate and the base plate is equal to the width of the bearing; a ejector rod is arranged in the discharge through hole, and the ejector rod can reciprocate in the discharge through hole; two end face pressing blocks are respectively arranged on the left and right sides of the positioning mold, and the two end face pressing blocks are respectively used to press the two ends of the bearing; the plane positioning pressing plate is connected to a first driving device, and the first driving device can drive the plane positioning pressing plate to reciprocate in the horizontal direction; the two end face pressing blocks are connected to a second driving device, and the second driving device can drive the two end face pressing blocks to move in a direction close to or away from the positioning mold. The utility model solves the problem of uneven internal and external chamfering of the bearing and poor processing accuracy in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing bush processing, in particular to a positioning fixture for bearing bush processing. Background Art

[0002] The bearing bush is the part where the sliding bearing contacts the journal. It is a semi-cylindrical surface in the shape of a tile, relatively smooth, and generally made of wear-resistant materials such as bronze and anti-friction alloy. Its main function is to bear the force applied by the journal, maintain the stability of the oil film, make the bearing work smoothly, and reduce the friction loss of the bearing.

[0003] The processing of bearings includes many steps. At present, when the bearings are processed for width and internal and external chamfering, two bearings are combined into a circle and the two sides of the bearings are processed for plane processing and internal and external chamfering at the same time. This processing method makes the internal and external chamfering of both sides of the bearings uneven and the processing accuracy is poor. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a positioning fixture for bearing processing, which is used to solve the problems of uneven processing of internal and external chamfers of bearings and poor processing accuracy in the prior art.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a positioning fixture for bearing bush processing, comprising a base plate; a positioning mold, the positioning mold is arranged on the base plate, and the positioning mold is provided with a positioning curved surface adapted to the outer peripheral surface of the bearing bush; the positioning mold is also provided with a plane positioning pressure plate, and the distance between the plane positioning pressure plate and the base plate is equal to the width of the bearing bush; the positioning mold is also provided with a discharge through hole, the discharge through hole intersects with the positioning curved surface, and a ejector rod is provided in the discharge through hole, and the ejector rod can reciprocate in the discharge through hole movement; two end face pressure blocks, the two end face pressure blocks are respectively arranged on the left and right sides of the positioning mold, and the two end face pressure blocks are respectively used to press the two ends of the bearing shell to clamp the bearing shell between the positioning curved surface and the end face pressure blocks; a first driving device, connected to the plane positioning pressure plate, the first driving device can drive the plane positioning pressure plate to reciprocate in the horizontal direction; a second driving device, connected to the two end face pressure blocks, the second driving device can drive the two end face pressure blocks to move toward or away from the positioning mold.

[0006] Preferably, two planar positioning pressing plates are provided, and the two planar pressing plates are respectively arranged on the left and right sides of the positioning mold.

[0007] Preferably, the first driving device is a cylinder.

[0008] Preferably, the second driving device is a cylinder.

[0009] As described above, the utility model of a positioning fixture for bearing processing has the following beneficial effects: when in use, the bearing is placed on the base plate, that is, one side of the bearing is fitted with the base plate, and then the two end face pressing blocks are driven by the second driving device to move in the direction close to the positioning mold, so as to clamp the two ends of the bearing by the two end face pressing blocks, that is, the bearing is clamped between the end face pressing blocks and the positioning curved surface, and at the same time, the plane positioning pressing plate is driven by the first driving device to move in the horizontal direction to protrude from the positioning curved surface, because the plane positioning pressing plate The distance between the bearing and the bottom plate is equal to the width of the bearing, so the plane positioning plate can press the bearing against the bottom plate to ensure that the bearing fits tightly with the bottom plate when clamped and positioned. After the bearing is clamped and positioned by the end face pressure block, the first drive device will drive the plane positioning plate to contract in the horizontal direction, that is, to withdraw the plane positioning plate from the top of the bearing. Then, the upper side of the bearing can be processed inside and outside by a turning tool. After processing, the end face pressure block is released, and the bearing is ejected from the positioning mold by a ejector rod to complete the processing. Next, the bearing can be grabbed to another station to process the other side of the bearing. Compared with the prior art, the positioning fixture for bearing processing of the utility model realizes clamping and positioning when processing one side of the bearing, and effectively solves the problem of uneven processing and poor processing accuracy caused by simultaneous internal and external chamfering on both sides of the bearing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Shown is a schematic structural diagram of a positioning fixture for bearing processing provided by the utility model.

[0011] Figure 2 The diagram shows the use of the positioning fixture for machining bearing shells provided by the present invention.

[0012] Description of Reference Numerals

[0013] 10. Bottom Plate

[0014] 20 Positioning mold

[0015] 201 Positioning Surface

[0016] 202 Discharge hole

[0017] 21 Flat positioning plate

[0018] 22 Ejector rod

[0019] 30 End face block

[0020] 100 Bearing DETAILED DESCRIPTION

[0021] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0022] In the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] See also Figure 1 and Figure 2 It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the utility model, and the drawings only show the components related to the utility model rather than the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0025] The utility model provides a positioning fixture for bearing bush processing, such as Figure 1As shown, the positioning fixture for bearing processing includes a base plate 10, a positioning mold 20, two end face pressing blocks 30, a first driving device and a second driving device, wherein the positioning mold 20 is arranged on the base plate 10, and the positioning mold 20 is provided with a positioning curved surface 201 adapted to the outer peripheral surface of the bearing 100, and the positioning mold 20 is also provided with a plane positioning pressure plate 21, and the distance between the plane positioning pressure plate 21 and the base plate 10 is equal to the width of the bearing 100, and the positioning mold 20 is also provided with a discharge through hole 202, and the discharge through hole 202 intersects with the positioning curved surface 201, and a ejector rod 22 is provided in the discharge through hole 202, and the ejector rod 22 is provided in the ejector through hole 202. The material rod 22 can reciprocate in the unloading hole 202; the two end face pressure blocks 30 are respectively arranged on the left and right sides of the positioning mold 20, and the two end face pressure blocks 30 are respectively used to press the two ends of the bearing 100 to clamp the bearing between the positioning surface 201 and the end face pressure blocks 30; the first driving device is connected to the plane positioning pressure plate 21, and the first driving device can drive the plane positioning pressure plate 21 to reciprocate in the horizontal direction; the second driving device is connected to the two end face pressure blocks 30, and the second driving device can drive the two end face pressure blocks 30 to move toward the positioning mold 20 or away from the positioning mold 20.

[0026] When the positioning fixture for bearing bush processing of the utility model is used, Figure 2 As shown, the bearing 100 is placed on the bottom plate 10 by a manipulator, that is, one side of the bearing 100 is fitted with the bottom plate 10, and then the two end face pressing blocks 30 are driven by the second driving device to move in the direction close to the positioning mold 20, so as to clamp the two ends of the bearing 100 between the end face pressing blocks 30 and the positioning curved surface 201. At the same time, the plane positioning pressing plate 21 is driven by the first driving device to move in the horizontal direction to protrude from the positioning curved surface 201. Since the distance between the plane positioning pressing plate 21 and the bottom plate 10 is equal to the distance between the bearing 100 width, so the plane positioning plate 21 can press the bearing 100 against the base plate 10, ensuring that the bearing 100 fits tightly with the base plate 10 when clamped and positioned. After the bearing 100 is clamped and positioned by the end face pressure block 30, the first drive device will drive the plane positioning plate 21 to contract in the horizontal direction, that is, to withdraw the plane positioning plate 21 from the top of the bearing 100, and then the upper side of the bearing 100 can be processed inside and outside by a turning tool. After the processing is completed, the end face pressure block 30 is released, and the bearing is ejected from the positioning mold 20 by the ejector rod 22 to complete the processing. Next, the bearing 100 can be grabbed to another station to process the other side of the bearing. Compared with the prior art, the positioning fixture for bearing processing of the utility model realizes clamping and positioning when processing one side of the bearing, and effectively solves the problem of uneven processing and poor processing accuracy caused by simultaneous internal and external chamfering of both sides of the bearing in the prior art.

[0027] Furthermore, when the bearing 100 is pressed to make it fit closely with the base plate 10, in order to make the bearing force more uniform, and thus ensure that the bearing and the base plate fit more uniformly, it is preferred that Figure 1 As shown, in this embodiment, two planar positioning pressing plates 30 are provided on the positioning mold 20 , and the two planar positioning pressing plates 30 are respectively arranged on the left and right sides of the positioning mold 20 .

[0028] Furthermore, in this embodiment, the first driving device and the second driving device are both cylinders, which have a simple structure and low cost.

[0029] In summary, the positioning fixture for bearing processing of the utility model can realize the clamping and positioning when processing the bearing on one side, and effectively solves the problem of uneven processing and poor processing accuracy caused by simultaneous internal and external chamfering of both sides of the bearing in the prior art. Therefore, the utility model effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0030] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A positioning fixture for bearing processing, characterized in that: include: Base plate; A positioning mold, the positioning mold is arranged on the bottom plate, and the positioning mold is provided with a positioning curved surface adapted to the outer peripheral surface of the bearing shell; the positioning mold is also provided with a plane positioning pressure plate, and the distance between the plane positioning pressure plate and the bottom plate is equal to the width of the bearing shell; the positioning mold is also provided with a discharge through hole, the discharge through hole intersects with the positioning curved surface, and a ejector rod is provided in the discharge through hole, and the ejector rod can reciprocate in the discharge through hole; Two end surface pressing blocks, the two end surface pressing blocks are respectively arranged on the left and right sides of the positioning mold, and the two end surface pressing blocks are respectively used to press the two ends of the bearing shell to clamp the bearing shell between the positioning curved surface and the end surface pressing blocks; A first driving device is connected to the plane positioning platen, and the first driving device can drive the plane positioning platen to reciprocate in a horizontal direction; The second driving device is connected to the two end surface pressing blocks, and the second driving device can drive the two end surface pressing blocks to move toward the positioning mold or away from the positioning mold.

2. A positioning fixture for bearing processing according to claim 1, characterized in that: There are two planar positioning pressing plates, and the two planar positioning pressing plates are respectively arranged on the left and right sides of the positioning mold.

3. A positioning fixture for bearing bushing processing according to claim 1, characterized in that: The first driving device is a cylinder.

4. A positioning fixture for bearing processing according to claim 1, characterized in that: The second driving device is a cylinder.

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