An adjustable tool for drawing holes on the end faces of large cages

Abstract

The utility model relates to the technical field of bearing processing, and specifically to an adjustable tooling for drawing holes on the end face of a large cage, comprising: a connecting plate, a supporting plate, a pressure cover, a broach inlet and outlet, and a limit adjustment assembly; the connecting plate is used to connect to the body of a broaching machine; the supporting plate is slidably connected to the connecting plate 1, and the other side of the supporting plate 2 is provided with a support portion for installing the cage to be processed; the pressure cover is detachably connected to the support portion; the broach inlet and outlet are provided at corresponding positions on the pressure cover and the supporting plate; the limit adjustment assembly is arranged on the connecting plate, and the limit adjustment assembly is used to adjust the position of the supporting plate on the connecting plate and prevent the supporting plate from detaching from the connecting plate. The device solves the problem that the traditional device cannot be adjusted and the subsequent adjustment is time-consuming and labor-intensive.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, in particular to an adjustable tool for drawing holes on the end faces of large retaining frames. Background Art

[0002] Thrust cylindrical roller bearings are widely used in various large-scale ship equipment, large motors, wind power, and mining equipment. Existing cages are mostly brass hole cages because of their high precision and high strength.

[0003] Since the hole structure on the cage is an end hole, during the processing of the bearing cage with an end hole structure, especially the processing of large-sized cages, the design and manufacture of the broaching machine tooling determines the position accuracy of the hole. Usually, the tooling is designed according to the size of the broaching machine and the cage, and the center height of the hole is designed, and then the screw holes are processed on the hole-drawing die to connect with the broaching machine. This method of calculating first and then processing the mold has certain limitations. It will cause the center diameter of the cage measured after the hole is drawn to be often too large or too small. At this time, the mold cannot be moved up and down for adjustment, and the tooling can only be removed to reprocess the position of the connecting hole or mill the connecting hole into an elliptical hole so that it can be moved up and down on the broaching machine. It is very laborious and unsafe for slight adjustments.

[0004] Therefore, it is necessary to provide an adjustable tooling for drawing holes on the end faces of large retainers to solve the above problems. Utility Model Content

[0005] The utility model provides an adjustable tool for drawing holes on the end face of a large retainer, so as to solve the problem that the existing mold cannot be moved up and down for adjustment, and the tool can only be removed to reprocess the position of the connecting hole or the connecting hole can be milled into an elliptical hole so that it can be moved up and down on a drawing machine, which is very laborious and unsafe for slight adjustment.

[0006] The utility model discloses an adjustable tooling for drawing a hole on the end face of a large cage, which adopts the following technical scheme, including:

[0007] A connecting plate, one side of which is used to connect with the broaching machine body;

[0008] A support plate, one side of which is slidably connected to a side of the connection plate facing away from the broaching machine body, and the other side of which is provided with a support portion for mounting a retaining frame to be processed;

[0009] A pressure cover, detachably connected to the support portion, for pressing the retaining frame to be processed mounted on the support portion;

[0010] The inlet and outlet of the broach are opened at corresponding positions on the gland and the support plate;

[0011] And a limit adjustment component is arranged on the connecting plate and is used for adjusting the position of the supporting plate on the connecting plate and preventing the supporting plate from being separated from the connecting plate.

[0012] Preferably, the supporting portion is a cylindrical protrusion, which is arranged concentrically with the supporting disk, and the outer peripheral surface of the cylindrical protrusion is used to cooperate with the inner ring of the retaining frame to be processed.

[0013] Preferably, a core shaft is arranged at the center of the side of the cylindrical protrusion facing away from the support plate, wherein the middle part of the pressure cover is sleeved with the core shaft, the cross-section of the core shaft at the matching position with the pressure cover is an elliptical cross-section or a rectangular cross-section, and a clamping bolt is arranged at the end of the core shaft, and a clamping nut for clamping the pressure cover is arranged on the clamping bolt.

[0014] Preferably, a first inlet and outlet are provided on the pressure cover, and a second inlet and outlet are provided on the support plate. After the pressure cover is installed on the core shaft, the first inlet and outlet are opposite to the second inlet and outlet, and are connected through the gap between the pressure cover and the support plate to form a broach inlet and outlet.

[0015] Preferably, the limit adjustment assembly comprises: a connecting piece, one end of which is connected to the outer peripheral surface of the support plate, and the connecting piece is connected to the broaching machine body through an adjusting screw, wherein the axial direction of the adjusting screw is parallel to the sliding direction of the support plate.

[0016] Preferably, the connecting piece is an L-shaped connecting piece, the free end of the short side of the L-shaped connecting piece is connected to the top of the support plate, the free section of the long side of the L-shaped connecting piece is parallel to the core axis, a threaded hole is provided on the free section of the long side of the L-shaped connecting piece, and the adjusting screw passes through the threaded hole and is connected to the connecting hole on the broaching machine body.

[0017] Preferably, the gland is a cross-shaped piece, a through hole cooperating with the core shaft is arranged at the center of the gland, wherein the first inlet and outlet are opened on one of the free ends of the cross-shaped piece.

[0018] Preferably, a guide groove is provided on a side of the connecting plate facing away from the broaching machine body, and a sliding block is provided on a side of the supporting plate facing away from the supporting portion, and the sliding block is slidably arranged in the guide groove.

[0019] Preferably, the slider is fixed to the support plate by means of a fastening bolt, and one end of the fastening bolt passing through the slider can contact the inner wall of the guide groove.

[0020] The beneficial effects of the utility model are:

[0021] By adjusting the position of the support plate on the connecting plate through the limit adjustment assembly, the support plate and the retaining frame to be processed can be moved up and down, thereby adjusting the rotation center diameter of the roller of the retaining frame to be processed. Compared with the prior art, the device does not need to remove the tooling when adjusting, and the tooling can be adjusted up and down, which saves time and effort, and solves the problem of the original inability to adjust and the time-consuming and labor-intensive subsequent adjustment.

[0022] Secondly, the gland in the utility model adopts a cross, that is, the gland is lightened, so that the weight of the gland is greatly reduced while satisfying the clamping function of the cage to be processed; for this type of cage processing, the connecting plate is universal, and different types of cages can be realized by only making corresponding support plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below 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.

[0024] Figure 1 This is a schematic diagram of the use state of an adjustable tooling for drawing holes on the end face of a large cage according to the utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the middle connecting plate;

[0026] Figure 3 for Figure 1 A schematic diagram of the structure connected to the middle support plate;

[0027] Figure 4 Schematic diagram of the structure of the slider in this embodiment;

[0028] Figure 5 This is a schematic diagram of the structure of the gland in this embodiment;

[0029] Figure 6 This is a schematic diagram of the structure of the retaining frame to be processed in this embodiment;

[0030] Figure 7 Schematic diagram of the connection between the support plate and the slider in this embodiment.

[0031] In the figure: 1. connecting plate; 2. supporting plate; 3. sliding block; 4. pressure cover; 5. clamping nut; 6. adjusting screw; 11. guide groove; 12. connecting hole; 21. core shaft; 22. clamping bolt; 23. threaded hole; 24. second inlet and outlet; 25. cylindrical protrusion; 31. fastening bolt; 41. through hole; 42. first inlet and outlet. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] An embodiment of an adjustable tooling for drawing holes on the end faces of a large retainer according to the utility model is as follows: Figure 1 As shown, it includes: a connecting disk 1, a supporting disk 2, a pressure cover 4, a broach inlet and outlet, and a limit adjustment component; one side of the connecting disk 1 is used to connect with the broaching machine body; one side of the supporting disk 2 is slidably connected to the side of the connecting disk 1 away from the broaching machine body, and the other side of the supporting disk 2 is provided with a supporting portion for mounting a holder to be processed; the pressure cover 4 is detachably connected to the supporting portion, and the pressure cover 4 is used to press the holder to be processed installed on the supporting portion; the broach inlet and outlet are opened at corresponding positions on the pressure cover 4 and the supporting disk 2; the limit adjustment component is arranged on the connecting disk 1, and the limit adjustment component is used to adjust the position of the supporting disk 2 on the connecting disk 1 and prevent the supporting disk 2 from detaching from the connecting disk 1.

[0034] like Figure 2 As shown, four connection holes 12 are evenly distributed on the connection plate 1, and the connection plate 1 is connected to the broaching machine body by passing the connection holes 12 with hexagon socket bolts.

[0035] In this embodiment, Figure 3 As shown, the supporting portion is a cylindrical protrusion 25, which is concentrically arranged with the supporting disk 2, and the outer peripheral surface of the cylindrical protrusion 25 is used to cooperate with the inner ring of the retaining frame to be processed; specifically, a core shaft 21 is arranged at the center of the side of the cylindrical protrusion 25 away from the supporting disk 2, wherein the middle part of the pressure cover 4 is sleeved with the core shaft 21, and the cross-section of the core shaft 21 at the cooperation with the pressure cover 4 is an elliptical cross-section or a rectangular cross-section, and a clamping bolt 22 is arranged at the end of the core shaft 21, and a clamping nut 5 for clamping the pressure cover 4 is arranged on the clamping bolt 22.

[0036] Specifically, the gland 4 is provided with a first inlet and outlet 42, and the support plate 2 is provided with a second inlet and outlet 24. After the gland 4 is mounted on the mandrel 21, the first inlet and outlet 42 is opposite to the second inlet and outlet 24, and is connected through the gap between the gland 4 and the support plate 2 to form a broach inlet and outlet; Figure 5 As shown, in this embodiment, the gland 4 is a cross-shaped member, a through hole 41 cooperating with the core shaft 21 is provided at the center thereof, wherein the first inlet and outlet 42 is provided on one of the free ends of the cross-shaped member.

[0037] Specifically, the limit adjustment assembly includes: a connecting piece, one end of which is connected to the outer peripheral surface of the support plate 2, and the connecting piece is connected to the broaching machine body through an adjusting screw 6, wherein the axial direction of the adjusting screw 6 is parallel to the sliding direction of the support plate 2. Figure 3 As shown in the left view in the upper right middle part and the top view below, the connector is an L-shaped connector, the free end of the short side of the L-shaped connector is connected to the top of the support plate 2, the free section of the long side of the L-shaped connector is parallel to the core shaft 21, and a threaded hole 23 is provided on the free section of the long side of the L-shaped connector. The adjusting screw 6 passes through the threaded hole 23 and is connected to the connecting hole on the broaching machine body.

[0038] Specifically, Figure 2 As shown, a guide groove 11 is provided on the side of the connecting plate 1 facing away from the broaching machine body. Figure 7 As shown, a slider 3 is provided on the side of the support plate 2 away from the support portion (ie, the cylindrical protrusion 25), and the slider 3 is slidably disposed in the guide groove 11; Figure 7 As shown, the slider 3 is fixed on the support plate 2 by means of a fastening bolt 31 , and one end of the fastening bolt 31 passing through the slider 3 can contact the inner wall of the guide groove 11 .

[0039] Specific working principle

[0040] The connecting plate 1 of the tooling of the utility model is fixed on the horizontal broaching machine by means of hexagon socket bolts. Figure 7As shown, the support plate 2 and the slider 3 are connected by the fastening bolts 31, and then the slider 3 of the support plate 2 and the guide groove 11 on the connecting plate 1 are slidably connected, and the adjusting bolts 6 on the support plate 2 play the role of upper and lower limit adjustment; the step surface A of the support plate 2 is matched with the inner diameter clearance of the holder to be processed, and the holder can just rotate on the A surface; then, the pressure cover 4 is installed on the core shaft 21, and the clamping nut 5 is screwed on the clamping bolt 22 at the end of the core shaft 21 to connect and tighten the pressure cover 4 and the support plate 2. That is, at this time, the support plate 2, the slider 3, the holder to be processed, the pressure cover 4 and the clamping bolt 22 become an integral component, and the integral component can be moved up and down in the guide groove 11 of the connecting plate 1 through the adjusting screw 6. After adjusting to the predetermined position, the fastening bolts 31 are tightened so that the fastening screws 31 are pressed against the guide groove 11 to lock the position of the connecting plate 1 and the support plate 2. During operation, first pull a hole, then loosen the clamping nut 5, rotate the holder to be processed to a symmetrical position and then process another hole, measure the center diameter, if the center diameter is too small, loosen the clamping nut 5, and then use a wrench to rotate the adjusting bolt 6 clockwise to move the overall assembly connected with the support plate 2 and the pressure cover 4 upward. At this time, the position of the pulled hole is close to the outer diameter of the holder to be processed, that is, the center diameter becomes larger, and vice versa; during the debugging process, according to the position of the overall assembly that needs to be raised or lowered, the measuring needle can be used to touch the top or bottom of the overall assembly to see the adjustment distance, or according to the specification of the adjusting bolt 6 in the figure is M16*2, that is, the adjusting bolt 6 rotates one circle for 2mm, and debug according to experience; when the appropriate position is adjusted, tighten the fastening bolt 31, at this time, the relative position of the holder assembly, the machine tool, and the connecting plate 1 has been fixed, and the holder can be processed.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable tool for drawing holes on the end faces of large cages, characterized in that: include: A connecting plate, one side of which is used to connect with the broaching machine body; A support plate, one side of which is slidably connected to a side of the connection plate facing away from the broaching machine body, and the other side of which is provided with a support portion for mounting a retaining frame to be processed; A pressure cover, detachably connected to the support portion, for pressing the retaining frame to be processed mounted on the support portion; The inlet and outlet of the broach are opened at corresponding positions on the gland and the support plate; And a limit adjustment component is arranged on the connecting plate and is used for adjusting the position of the supporting plate on the connecting plate and preventing the supporting plate from being separated from the connecting plate.

2. The adjustable tooling for drawing holes on the end faces of large cages according to claim 1, characterized in that: The supporting portion is a cylindrical protrusion, which is concentrically arranged with the supporting disk, and the outer peripheral surface of the cylindrical protrusion is used to cooperate with the inner ring of the retaining frame to be processed.

3. The adjustable tooling for drawing holes on the end faces of large cages according to claim 2, characterized in that: A core shaft is arranged at the center of one side of the cylindrical protrusion facing away from the support plate, wherein the middle part of the pressure cover is sleeved with the core shaft, the cross section of the core shaft at the matching part with the pressure cover is an elliptical cross section or a rectangular cross section, a clamping bolt is arranged at the end of the core shaft, and a clamping nut for clamping the pressure cover is arranged on the clamping bolt.

4. The adjustable tool for drawing holes on the end faces of large cages according to claim 3, characterized in that: The pressure cover is provided with a first inlet and the support plate is provided with a second inlet and outlet. After the pressure cover is installed on the core shaft, the first inlet and outlet are opposite to the second inlet and outlet, and are connected through the gap between the pressure cover and the support plate to form a broach inlet and outlet.

5. The adjustable tool for drawing holes on the end faces of large cages according to claim 1, characterized in that: The limit adjustment assembly includes: a connecting piece, one end of which is connected to the outer peripheral surface of the support plate, and the connecting piece is connected to the broaching machine body through an adjusting screw, wherein the axial direction of the adjusting screw is parallel to the sliding direction of the support plate.

6. The adjustable tool for drawing holes on the end faces of large cages according to claim 5, characterized in that: The connecting piece is an L-shaped connecting piece, the free end of the short side of the L-shaped connecting piece is connected to the top of the support plate, the free section of the long side of the L-shaped connecting piece is parallel to the core axis, a threaded hole is provided on the free section of the long side of the L-shaped connecting piece, and the adjusting screw passes through the threaded hole and is connected to the connecting hole on the broaching machine body.

7. The adjustable tool for drawing holes on the end faces of large cages according to claim 1, characterized in that: The gland is a cross-shaped piece, the center of which is provided with a through hole matched with the core shaft, wherein the first inlet and outlet are opened on one of the free ends of the cross-shaped piece.

8. The adjustable tool for drawing holes on the end faces of large cages according to claim 1, characterized in that: A guide groove is arranged on one side of the connecting plate away from the broaching machine body, and a sliding block is arranged on one side of the supporting plate away from the supporting part. The sliding block is slidably arranged in the guide groove.

9. The adjustable tool for drawing holes on the end faces of large cages according to claim 8, characterized in that: The slider is fixed on the supporting plate by means of a fastening bolt, and one end of the fastening bolt passing through the slider can contact the inner wall of the guide groove.

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