Bearing box body machining clamp

Abstract

The utility model discloses a bearing housing processing clamp, which belongs to the technical field of bearing housing processing and comprises a lathe faceplate and a positioning plate, and a positioning boss is arranged in the middle of the positioning plate. The positioning boss and the lathe faceplate are coaxial; and at least two pressing rods are detachably mounted on the lathe faceplate. A positioning boss in the center of the positioning disc is positioned and inserted into a machined first bearing hole, the edge of a flange is pressed through two pressing rods, the end face of the flange is tightly attached to the positioning disc, the positioning disc is driven to rotate through a lathe faceplate, and therefore the bearing box is driven to rotate; the end face away from the flange and the second bearing hole are machined through the lathe, the high coaxiality of the first bearing hole and the second bearing hole is effectively guaranteed, and the perpendicularity of the end face and the bearing hole is guaranteed. And the secondary clamping of the bearing box body is simple, convenient and reliable, tedious alignment is not needed, the time is greatly saved, the working efficiency is improved, and the production cost is reduced. The overall structure is simple, using is convenient, and practicability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing box body processing, in particular to a bearing box body processing fixture. Background Art

[0002] The bearing housing, also known as the winch housing, is a housing part that supports and lubricates the bearings. It also bears the axial and radial forces generated by the equipment during operation.

[0003] In equipment with rotating shafts, the shafts are generally supported by bearings for rotation. The bearings are installed in the bearing housing, which is filled with lubricating oil. During operation, the bearings are lubricated. At the same time, the various forces on the shaft during operation will also be transmitted to the bearing housing and borne by the bearing housing. The bearing housing is generally made of cast iron and cast steel.

[0004] The bearing housing generally has a flange at at least one end for reliable fastening connection with adjacent components. For the bearing housing, the coaxiality of the bearing mounting holes at both ends is required to be high, and the verticality of the end face and the bearing mounting hole is required to be high. When the coaxiality of the bearing mounting holes at both ends is low or the verticality of the end face and the bearing mounting hole is not high, the bearing or housing will heat up, causing wear on the connecting shaft and even the risk of breakage.

[0005] In traditional bearing housing machining, four-jaw chucks are used for clamping, and one side is first machined, and then the other side is machined for secondary clamping. During the secondary clamping, alignment is required. Since the coaxiality of the bearing mounting holes at both ends and the verticality of the end face and the bearing mounting holes are very high, the alignment operation is cumbersome and difficult, which will lead to low product quality and operation efficiency, thereby increasing production costs. Utility Model Content

[0006] In order to solve the problem that in traditional bearing housing machining, one side is machined first by clamping with a four-jaw chuck, and then the other side is machined by a secondary clamping, and alignment is required during the secondary clamping. Since the coaxiality of the bearing mounting holes at both ends and the verticality of the end face and the bearing mounting holes are required to be very high, the operation is cumbersome and the alignment is difficult, which will lead to low product quality and operating efficiency, thereby increasing production costs, the utility model provides a bearing housing machining fixture.

[0007] The utility model is realized by the following technical solutions:

[0008] A bearing box processing fixture includes a lathe faceplate and a positioning plate which is positioned and installed on the lathe faceplate and can be clamped with the flange end face of the bearing box. A positioning boss which can be positioned and inserted with the first bearing hole of the flange end of the bearing box is provided in the middle of the positioning plate; the positioning boss is coaxial with the lathe faceplate; at least two pressure rods which can be detachably installed on the lathe faceplate and can be pressed on the flange of the bearing box.

[0009] A further improvement of the utility model is that a bolt is inserted into the long hole on the lathe faceplate, and nuts capable of press-fitting the two ends of the pressure rod are screwed on the bolt.

[0010] A further improvement of the utility model is that a mounting hole is provided at one end of the pressure rod, and a clamping slot opening to one side is provided at the other end.

[0011] A further improvement of the utility model is that the mounting hole is in the shape of an elongated hole.

[0012] A further improvement of the utility model is that the edges of the card slot are rounded.

[0013] A further improvement of the utility model is that the pressure rod comprises a first rod body and a second rod body which are telescopically and slidably connected.

[0014] A further improvement of the utility model is that the pressure rod is provided with reinforcing ribs along its length direction.

[0015] A further improvement of the utility model is that ribs are symmetrically arranged on both sides of the reinforcing rib.

[0016] A further improvement of the utility model is that an operating protrusion is provided on one end of the pressure rod away from the mounting hole.

[0017] It can be seen from the above technical solutions that the beneficial effects of the utility model are:

[0018] The positioning boss at the center of the positioning plate is inserted into the processed first bearing hole, and the flange edge is pressed by two pressure rods to make the flange end face fit tightly with the positioning plate. The positioning plate is driven to rotate by the lathe faceplate, thereby driving the bearing housing to rotate. The end face away from the flange and the second bearing hole are machined by the lathe, which effectively ensures the high coaxiality of the first bearing hole and the second bearing hole, and ensures the verticality of the end face and the bearing hole; and the secondary clamping of the bearing housing is simple, convenient and reliable, without complicated alignment, which greatly saves time, improves work efficiency and reduces production costs. The overall structure is simple, easy to use and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the installation of a positioning plate according to a specific implementation method of the utility model.

[0021] Figure 2 It is a structural schematic diagram of a specific implementation method of the utility model.

[0022] Figure 3 It is a schematic diagram of the compression rod structure of a specific implementation mode of the utility model.

[0023] Figure 4 It is a schematic cross-sectional view of a first rod body according to a specific implementation mode of the utility model.

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the bearing housing.

[0025] In the accompanying drawings: 1. bearing housing, 11. first bearing hole, 12. second bearing hole, 13. flange, 2. lathe faceplate, 3. positioning plate, 31. positioning boss, 4. pressure rod, 41. slot, 42. operating protrusion, 43. mounting hole, 44. first rod body, 45. second rod body, 46. reinforcing rib, 47. rib plate, 5. bolt, 6. nut. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0027] like Figure 5 As shown, it is a schematic diagram of the cross-sectional structure of the bearing housing 1; one end thereof has a flange 13 and a first bearing hole 11, and the other end is a second bearing hole 12.

[0028] like Figure 1-4As shown, the utility model discloses a bearing box processing fixture, including a lathe faceplate 2 and a positioning plate 3 which is positioned and installed on the lathe faceplate 2 and can be clamped with the end face of the flange 13 of the bearing box 1, and a positioning boss 31 which can be positioned and inserted with the first bearing hole 11 of the bearing box 1 is provided in the middle of the positioning plate 3; the positioning boss 31 is coaxial with the lathe faceplate 2; at least two pressure rods 4 which can be pressed on the flange 13 of the bearing box 1 are detachably installed on the lathe faceplate 2.

[0029] The end of the bearing housing 1 away from the flange 13 is clamped by a four-claw chuck, and the end face of the flange 13 and the first bearing hole 11 are machined by a lathe; then the positioning boss 31 in the center of the positioning plate 3 is positioned and inserted with the machined first bearing hole 11, and the edges of the flange 13 are pressed by two pressure rods 4, so that the end face of the flange 13 fits tightly with the positioning plate 3, and the positioning plate 3 is driven to rotate by the lathe faceplate 2, thereby driving the bearing housing 1 to rotate, and the end face away from the flange 13 and the second bearing hole 12 are machined by a lathe, which effectively ensures the high coaxiality of the first bearing hole 11 and the second bearing hole 12, and ensures the verticality of the end face and the bearing hole; and the secondary clamping of the bearing housing 1 is simple, convenient and reliable, without complicated alignment, which greatly saves time, improves work efficiency and reduces production costs. The overall structure is simple, easy to use and practical.

[0030] Among them, a bolt 5 is inserted into the long hole on the lathe faceplate 2, and a nut 6 is screwed on the bolt 5 to press the two ends of the pressure rod 4. A mounting hole 43 is opened at one end of the pressure rod 4, and a clamping groove 41 opened to one side is opened at the other end. One bolt 5 passes through the mounting hole 43 and is screwed with the nut 6, and the clamping groove 41 is clamped on another bolt 5, and the nut 6 is screwed on the bolt 5; the two ends of the pressure rod 4 are pressed, so that the pressure rod 4 is pressed against the flange 13, and the convenient clamping of the pressure rod 4 and the convenient disassembly of the bearing housing 1 are realized, which can be realized by only rotating the pressure rod 4.

[0031] The mounting hole 43 is in the shape of a long hole. The bolt 5 is slidably matched with the mounting hole 43 to achieve accurate clamping of the clamping groove 41 and another bolt 5, thereby ensuring the reliability of the press-fitting of the flange 13. Generally, two parallel pressing rods 4 are used to realize the press-fitting of the flange 13.

[0032] In order to ensure the convenience of the clamping slot 41 and the bolt 5, the edges of the clamping slot 41 are rounded to play a guiding role.

[0033] In order to ensure the convenience of positioning and inserting the positioning boss 31 and the first bearing hole 11, the edge of the positioning boss 31 is chamfered to play a guiding role.

[0034] In another embodiment, the pressure rod 4 includes a first rod body 44 and a second rod body 45 which are telescopically and slidably connected, the mounting hole 43 is provided on the first rod body 44, and the clamping slot 41 is provided on the second rod body 45. The second rod body 45 is slidably and telescopically connected relative to the first rod body 44, so that the clamping slot 41 and the bolt 5 are accurately clamped.

[0035] In order to ensure the bending resistance and structural strength of the compression rod 4 , a reinforcing rib 46 is provided on the compression rod 4 along its length direction.

[0036] Furthermore, ribs 47 are symmetrically arranged on both sides of the reinforcing rib 46 to improve the structural strength.

[0037] In order to realize the convenient rotation of the pressing rod 4 (the end of the clamping slot 41 ), an operating protrusion 42 is provided on the end of the pressing rod 4 away from the mounting hole 43 .

[0038] The bearing housing processing fixture clamps the end of the bearing housing 1 away from the flange 13 through a four-claw chuck, and the end face of the flange 13 and the first bearing hole 11 are machined by a lathe; then the positioning boss 31 in the center of the positioning plate 3 is positioned and inserted with the machined first bearing hole 11, and the edges of the flange 13 are pressed together by two pressure rods 4, so that the end face of the flange 13 fits tightly with the positioning plate 3, and the positioning plate 3 is driven to rotate by the lathe faceplate 2, thereby driving the bearing housing 1 to rotate, and the end face away from the flange 13 and the second bearing hole 12 are machined by the lathe, effectively ensuring the high coaxiality of the first bearing hole 11 and the second bearing hole 12, and ensuring the verticality of the end face and the bearing hole; and the secondary clamping of the bearing housing 1 is simple, convenient and reliable, without the need for tedious alignment, which greatly saves time, improves work efficiency and reduces production costs. The overall structure is simple, easy to use and practical.

[0039] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0040] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0041] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bearing housing processing fixture, characterized in that: The invention comprises a lathe faceplate (2) and a positioning plate (3) which is positioned and mounted on the lathe faceplate (2) and can be fitted and clamped with the end face of a flange (13) of a bearing housing (1); a positioning boss (31) which can be positioned and inserted into a first bearing hole (11) at the end of the flange (13) of the bearing housing (1) is provided in the middle of the positioning plate (3); the positioning boss (31) and the lathe faceplate (2) are coaxial; and at least two pressing rods (4) which can be pressed onto the flange (13) of the bearing housing (1) are detachably mounted on the lathe faceplate (2).

2. The bearing housing processing fixture according to claim 1, characterized in that: A bolt (5) is inserted into a long hole on the lathe faceplate (2), and nuts (6) are screwed onto the bolt (5) and can be press-fitted onto both ends of the pressure rod (4).

3. The bearing housing processing fixture according to claim 2, characterized in that: A mounting hole (43) is formed at one end of the pressure rod (4), and a clamping groove (41) opening toward one side is formed at the other end.

4. The bearing housing processing fixture according to claim 3 is characterized in that: The mounting hole (43) is in the shape of an elongated hole.

5. The bearing housing processing fixture according to claim 3 is characterized in that: The edges of the slot (41) are rounded.

6. The bearing housing processing fixture according to claim 3, characterized in that: The pressure rod (4) comprises a first rod body (44) and a second rod body (45) which are telescopically and slidably connected.

7. The bearing housing processing fixture according to claim 3, characterized in that: The pressure rod (4) is provided with reinforcing ribs (46) along its length direction.

8. The bearing housing processing fixture according to claim 7, characterized in that: Ribs (47) are symmetrically arranged on both sides of the reinforcing rib (46).

9. The bearing housing processing fixture according to claim 3, characterized in that: An operating protrusion (42) is provided on one end of the pressure rod (4) away from the mounting hole (43).

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