Clamping tool for hard turning of angular contact bearing ring

Abstract

The utility model relates to the field of bearing machining, and particularly discloses a clamping tool for hard turning of an angular contact bearing ring. The clamping tool comprises a mounting assembly, a driving assembly and a pressing assembly, the mounting assembly comprises a chuck, a clamping groove is formed in one side of the chuck, and three positioning protruding blocks are arranged in the clamping groove; the chuck is further provided with an operation hole, and the center of the operation hole coincides with the center of the clamping groove. The driving assembly comprises a jacking piece, and the jacking piece is arranged in the operation hole in a sliding mode. The press-fitting assemblies correspond to the positioning protruding blocks one to one, each pressing assembly comprises an installation block and a pressing head, and the installation blocks are connected with the chucks. The pressing head is hinged to the installation block, one end of the pressing head extends into the operation hole, the other end of the pressing head is a pressing end, and the pressing end corresponds to the positioning protruding block. According to the clamping tool, the ferrule is clamped and positioned in a three-point positioning mode, the clamping reliability is guaranteed, and then the machining progress is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of bearing processing, and particularly relates to a clamping tooling for hard turning processing of angular contact bearing rings. Background Technique

[0002] Angular contact bearings are one of the common bearing types and have a wide range of application scenarios, such as robot bearings. As Figure 1 shown, it is a schematic structural diagram of an angular contact ball bearing ring. After heat treatment, the bearing ring is extremely prone to deformation, such as warping deformation, etc. And the deformation of the ring will have a certain impact on the clamping and positioning during hard turning after hot processing. There are problems such as displacement of the ring during the processing, the clamping reliability is insufficient, and the accuracy of turning processing is also difficult to guarantee.

[0003] The purpose of this application is to provide a clamping tooling for the hard turning process aiming at the heat treatment deformation problem of angular contact ball bearing rings, so as to improve the processing progress. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a clamping tooling for hard turning processing of angular contact bearing rings, which uses a three-point positioning form to clamp and position the ring, ensures the clamping reliability, and further ensures the processing progress.

[0005] To solve the above technical problem, the technical solution provided by the utility model is as follows: A clamping tooling for hard turning processing of angular contact bearing rings, at least including:

[0006] An installation component, the installation component includes a chuck, one side of the chuck is provided with a clamping groove, and three positioning protrusions are arranged in the clamping groove. The positioning protrusions are arranged close to the side wall of the clamping groove and are evenly distributed annularly around the center of the clamping groove;

[0007] An operation hole is also opened on the chuck, the center of the operation hole coincides with the center of the clamping groove, and the operation hole axially penetrates through the chuck;

[0008] A driving component, the driving component includes a pressing member, and the pressing member is slidably arranged in the operation hole;

[0009] A pressing component, the pressing component corresponds to the positioning protrusion one by one. The pressing component includes an installation block and a pressing head. The installation block is connected to the chuck; the pressing head is hinged to the installation block, one end of the pressing head extends into the operation hole, and the other end is a pressing end. The pressing end corresponds to the positioning protrusion, and a clamping interval is formed between the pressing head and the positioning protrusion.

[0010] During processing, the ferrule is loaded into the clamping groove. The end face of the ferrule contacts the three positioning bumps. The pressing member moves axially and contacts the chuck, driving the joint to rotate until the pressing end of the chuck contacts and presses the ferrule, achieving reliable clamping of the ferrule.

[0011] The clamping tooling of this application uses a three-point positioning form to clamp and position the ferrule, which can ensure the reliability of clamping, thereby ensuring the processing progress, and at the same time has the advantage of convenient operation.

[0012] Preferably, the pressing member includes a top head, and an outer guiding inclined surface is provided on the side of the top head.

[0013] Preferably, a first reset elastic member is provided between the pressing head and the mounting block. Under normal conditions, the pressing end of the pressing head is located at the upper limit position away from the positioning bump. A certain distance is maintained between the pressing head and the positioning bump, which can leave enough space for the loading of the ferrule.

[0014] Preferably, the chuck includes a fixture seat and a fitting. The fixture seat and the fitting are separately arranged and detachably connected; an adapting assembly is provided between the fixture seat and the fitting. The adapting assembly includes an adapting groove and an adapting boss. One of the adapting groove and the adapting boss is provided on the fixture seat, and the other is provided on the fitting.

[0015] The fixture seat and the fitting are separately arranged and cooperate through the adapting assembly, and the matching chuck can be replaced according to the specifications of the bearing, improving the applicability within a certain range.

[0016] Preferably, an installation groove is provided on the fixture seat, and the installation grooves correspond to the pressing assemblies one by one; the mounting blocks are arranged in the installation grooves, and the fitting axially limits the mounting blocks. The pressing assemblies can also be replaced.

[0017] Preferably, a pressing channel corresponding to the pressing assembly is provided on the fitting. The width of the pressing channel is smaller than the width of the installation groove and larger than the width of the pressing head.

[0018] The adapting joint can reliably limit the mounting block, and at the same time the pressing channel can provide enough space for the pressing head to pass through.

[0019] Preferably, the installation groove extends radially to communicate with the operation hole, and the mounting block is slidably arranged in the operation hole; a second reset elastic member is provided between the mounting block and the chuck. Under normal conditions, part of the mounting block extends into the operation hole.

[0020] When the ferrule is inserted, the clamping assembly is positioned close to the center of the clamping groove, leaving enough space for the ferrule to be inserted. After the ferrule is inserted, the clamping assembly moves outward as a whole under the push of the drive assembly, and finally the pressure head contacts and presses the ferrule to achieve clamping.

[0021] Preferably, the end surface of the mounting block extending into the operating port is provided with an inner guiding slope. The provision of the guiding slope can convert the axial movement of the pressing piece into the radial movement of the mounting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the angular contact bearing ring;

[0023] Figure 2 Schematic diagram of the structure of the clamping tool used for hard turning of angular contact bearing rings in this embodiment;

[0024] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0025] Figure 4 This is an exploded view of a clamping tool used for hard turning of an angular contact bearing ring in this embodiment;

[0026] Figure 5 This is a front view of a fixture seat in a clamping tool used for hard turning of angular contact bearing rings in this embodiment;

[0027] Figure 6 This is a front view of an adapter in a clamping tool used for hard turning of an angular contact bearing ring in this embodiment;

[0028] Figure 7 This is a schematic structural diagram of a clamping tool for hard turning of an angular contact bearing ring according to this embodiment, showing the ring being installed;

[0029] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0030] Figure 9 This is a schematic structural diagram of a clamping tool used for hard turning of an angular contact bearing ring according to this embodiment, showing the ring clamping completed;

[0031] Figure 10 for Figure 9 A partial enlarged view of point C in the middle. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model. Embodiment

[0033] As Figures 2 - 4 shown, a clamping tooling for hard turning of angular contact bearing rings includes an installation component, a driving component, and a pressing component 3.

[0034] As Figure 3 and Figure 6 shown, the installation component includes a chuck. One side of the chuck is provided with a clamping groove 21. Three positioning protrusions 22 are arranged in the clamping groove 21. The positioning protrusions 22 are arranged close to the side wall of the clamping groove 21 and are evenly distributed annularly around the center of the clamping groove 21.

[0035] As Figure 2 , Figure 4 and Figure 5 shown, an operation hole 5 is also formed in the chuck. The center of the operation hole 5 coincides with the center of the clamping groove 21, and the operation hole 5 axially penetrates the chuck.

[0036] As Figure 2 and Figure 4 shown, the driving component includes a pressing member 4. The pressing member 4 is slidably arranged in the operation hole 5. Specifically, the pressing member 4 includes a top head, and an outer guiding inclined surface 41 is arranged on the side surface of the top head.

[0037] As Figures 2 - 4 shown, the pressing components correspond to the positioning protrusions 22 one by one. The pressing component 3 includes an installation block 32 and a pressing head 33. The installation block 32 is connected to the chuck. The pressing head 33 is hinged to the installation block 32. One end of the pressing head 33 extends into the operation hole 5, and the other end is a pressing end. The pressing end corresponds to the positioning protrusion 22, and a clamping interval is formed between the pressing head 33 and the positioning protrusion 22.

[0038] As Figure 3 and Figure 4 shown, specifically, a first reset elastic member 34 is arranged between the pressing head 33 and the installation block 32. In the normal state, the pressing end of the pressing head 33 is located at the upper limit position far from the positioning protrusion 22. A certain distance is maintained between the pressing head 33 and the positioning protrusion 22, which can leave enough space for the installation of the ring.

[0039] During machining, the ring 6 is installed in the clamping groove 21. The end face of the ring 6 contacts the three positioning protrusions 22. The pressing member 4 moves axially and contacts the adapter 2, that is, in the state as shown in Figure 7 and Figure 8 shown. The driving joint rotates until the pressing end of the chuck contacts the ring 6 and presses the ring 6, realizing reliable clamping of the ring 6, that is, in the state as shown in Figure 9 and Figure 10 shown.

[0040] As Figures 2 - 4 shown, as a specific embodiment, the chuck includes a fixture base 1 and an adapter 2. The fixture base 1 and the adapter 2 are separately provided and detachably connected. An adapter assembly is provided between the fixture base 1 and the adapter 2. The adapter assembly includes an adapter groove and an adapter boss. One of the adapter groove and the adapter boss is provided on the fixture base 1, and the other is provided on the adapter 2. The fixture base 1 and the adapter 2 are separately provided and cooperate through the adapter assembly, so that the matching adapter 2 can be replaced according to the specifications of the bearing, improving the applicability within a certain range.

[0041] As Figures 2 - 4 shown, an installation groove 11 is provided on the fixture base 1, and the installation groove 11 corresponds to the pressing assembly 3 one by one. The installation block 32 is arranged in the installation groove 11, and the adapter 2 axially limits the installation block 32. The pressing assembly 3 can also be replaced.

[0042] As Figure 5 and Figure 6 shown, a pressing channel 23 corresponding to the pressing assembly 3 is provided on the adapter 2. The width of the pressing channel 23 is smaller than the width of the installation groove 11 and larger than the width of the pressing head 33. The adapter joint can reliably limit the installation block 32, and at the same time, the pressing channel 23 can provide enough space for the pressing head 33 to pass through.

[0043] As Figures 2 - 4 shown, further, the installation groove 11 extends radially to communicate with the operation hole 5, and the installation block 32 is slidably arranged in the operation hole 5. A second reset elastic member 35 is provided between the installation block 32 and the chuck. Under normal conditions, a part of the installation block 32 extends into the operation hole 5. An inner guiding inclined surface 31 is provided on the end surface of the installation block 32 extending into the operation port. The setting of the guiding inclined surface can convert the axial movement of the pressing member 4 into the radial movement of the installation block 32.

[0044] When loading the ring, the pressing assembly 3 is integrally located at a position close to the center of the clamping groove 21, leaving enough space for the loading of the ring. After the ring is loaded, under the push of the driving assembly, the pressing assembly 3 moves outward as a whole, and finally the pressing head 33 contacts and presses the ring to achieve clamping.

[0045] The clamping tooling of the present application uses a three-point positioning form to clamp and position the ring, which can ensure the clamping reliability, thereby ensuring the processing progress, and at the same time has the advantage of convenient operation.

[0046] In summary, the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clamping tooling for hard turning of angular contact bearing rings, characterized in that, At least including: An installation component, the installation component includes a chuck, one side of the chuck is provided with a clamping groove, and three positioning bumps are arranged in the clamping groove. The positioning bumps are arranged close to the side wall of the clamping groove and are evenly distributed annularly around the center of the clamping groove; An operation hole is also opened on the chuck. The center of the operation hole coincides with the center of the clamping groove, and the operation hole axially penetrates through the chuck; A driving component, the driving component includes a pressing member, and the pressing member is slidably arranged in the operation hole; A pressing component, the pressing component corresponds to the positioning bump one by one. The pressing component includes a mounting block and a pressing head. The mounting block is connected to the chuck; the pressing head is hinged to the mounting block. One end of the pressing head extends into the operation hole, and the other end is a pressing end. The pressing end corresponds to the positioning bump, and a clamping interval is formed between the pressing head and the positioning bump.

2. The clamping tooling according to claim 1, wherein: The pressing member includes a top head, and an outer guiding inclined surface is arranged on the side surface of the top head.

3. The clamping tooling according to claim 1, characterized in that: A first reset elastic member is arranged between the pressing head and the mounting block. Under normal conditions, the pressing end of the pressing head is located at the upper limit position away from the positioning bump.

4. The clamping tooling according to any one of claims 1-3, characterized in that: The chuck includes a fixture seat and an adapter. The fixture seat and the adapter are separately arranged and are detachably connected; an adapter component is arranged between the fixture seat and the adapter. The adapter component includes an adapter groove and an adapter boss. One of the adapter groove and the adapter boss is arranged on the fixture seat, and the other is arranged on the adapter.

5. The clamping tooling according to claim 4, wherein: The fixture seat is provided with mounting grooves, and the mounting grooves correspond to the pressing components one by one; the mounting blocks are arranged in the mounting grooves, and the adapter axially limits the mounting blocks.

6. The clamping tooling according to claim 5, wherein: The adapter is provided with a pressing channel corresponding to the pressing component. The width of the pressing channel is smaller than the width of the mounting groove and larger than the width of the pressing head.

7. The clamping tooling according to claim 5, wherein: The mounting groove extends radially to communicate with the operation hole, and the mounting block is slidably arranged in the operation hole; a second reset elastic member is arranged between the mounting block and the chuck. Under normal conditions, a part of the mounting block extends into the operation hole.

8. The clamping tooling according to claim 7, wherein: The end surface of the mounting block extending into the operation port is provided with an inner guiding inclined surface.

Images