Machining clamp for hydraulic hollow columnar part
By designing a machining fixture for hydraulic hollow columnar components, using the surface contact limit between the through-channel and the transition table and the axial compression of the nut, the problem of existing fixtures requiring multiple clamping is solved, and the processing time is shortened and the stability is improved.
Patent Information
- Application Number
- CN202423075991.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing hydraulic parts processing fixtures require multiple clamping, resulting in low working efficiency and unstable clamping, especially prone to slippage for columnar objects.
A hydraulic hollow columnar component processing fixture is designed, including a working table, a clamp rod and a locking nut. The clamp rod is composed of a chassis, a transition table and a vertical column. The surface contact limit with the transition table through the through channel and the axial compression of the nut is achieved to achieve pre-fixation and improve stability.
The processing time of hollow columnar parts is reduced, processing stability and working efficiency are improved, and radial deviation is avoided.
Smart Images
Figure CN223172833U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hydraulic component processing, and particularly relates to a processing fixture for a hydraulic hollow columnar component. Background Art
[0002] At present, a large number of columnar objects in hydraulic components need to be drilled with multiple clampings. Existing fixtures need to find the reference points multiple times, which affects work efficiency. Moreover, when clamping columnar objects, it is easy to slip and is unstable. Summary of the Utility Model
[0003] The problem to be solved by the utility model is to provide a processing fixture for a hydraulic hollow columnar component, which can reduce the processing time of the hollow columnar component and improve the processing stability. The contact area between the through-channel and the transition table is relatively large, and the contact position is also far from the main axis, so it plays a role of pre-fixing and has good stability.
[0004] To solve the above problems, the utility model provides a processing fixture for a hydraulic hollow columnar component. To achieve the above object, the technical solution adopted by the utility model to solve its technical problems is:
[0005] A processing fixture for a hydraulic hollow columnar component, comprising: an operation table; a fixture rod, the integrally formed fixture rod sequentially includes a chassis, a transition table, and a vertical column along the axial direction, and the radial dimensions of the chassis, the transition table, and the vertical column gradually decrease; a locking nut that can be threadedly assembled with the vertical column; wherein, the chassis is fixed to the operation table; the vertical column can pass through the hollow columnar component, and the operation table and the locking nut can respectively contact the two axial ends of the hollow columnar component; the hollow columnar component has a through-channel for the vertical column to pass through, and the outer wall side surface of the transition table can achieve surface contact limit with the inner wall of the through-channel.
[0006] The beneficial effects of adopting the above technical solution are: This technical solution can reduce the processing time of the hollow columnar component, increase the work efficiency of clamping the hollow columnar component with the fixture, and improve the processing stability. During operation, place the hollow columnar component on the operation table, align the through-channel with the transition table. The contact area between the through-channel and the transition table is relatively large, and the contact position is also far from the main axis, so it plays a role of pre-fixing, and the stability of this pre-fixing is relatively good. At this time, the vertical column will naturally pass through the through-channel, and the nut can be screwed onto the vertical column. As the nut is continuously screwed, the nut can axially press the hollow columnar component. After that, no matter where the hollow columnar component is subjected to local secondary processing, the hollow columnar component is very stable. If there is only a nut without a transition table, even if the hollow columnar component is axially pressed, it may still deviate radially.
[0007] As a further improvement of the present utility model, the chassis includes a countersunk hole observed axially, and a countersunk screw is assembled in the countersunk hole. The countersunk screw fixes the chassis to the operating table.
[0008] The beneficial effects of adopting the above technical solution are as follows: The operating table provides a larger area of stable operating position. The chassis and the operating table are fixedly assembled with each other.
[0009] As a further improvement of the present utility model, a plurality of countersunk holes are arranged in a circular array around the axis of the chassis.
[0010] The beneficial effects of adopting the above technical solution are as follows: There are more countersunk screws, ensuring the fixing strength.
[0011] As a further improvement of the present utility model, the vertical column has an external thread section, the locking nut has an internal thread section, the external thread section and the internal thread section are movably assembled with each other, the axial length of the external thread section is greater than the axial length of the internal thread section, the locking nut includes a cap body part and a cap brim part, the radial dimension of the cap brim part is greater than the radial dimension of the cap body part, the radial dimension of the cap brim part is greater than the radial dimension of the through channel, and the cap brim part can contact one axial end of the hollow columnar part.
[0012] The beneficial effects of adopting the above technical solution are as follows: Prevent the nut from falling into the through channel.
[0013] As a further improvement of the present utility model, the cross-sectional profiles of the chassis, the transition table, and the vertical column are all circular, and the chassis, the transition table, and the vertical column are coaxially arranged.
[0014] The beneficial effects of adopting the above technical solution are as follows: The overall shape is relatively symmetrical, ensuring uniform stress.
[0015] As a further improvement of the present utility model, the axial dimensions of the vertical column, the chassis, and the transition table gradually decrease, and the axial dimension of the vertical column is greater than the axial dimension of the hollow columnar part.
[0016] The beneficial effects of adopting the above technical solution are as follows: The transition table limits one axial end of the hollow columnar part.
[0017] As a further improvement of the present utility model, the transition table can be in interference fit or transition fit with the through channel.
[0018] The beneficial effects of adopting the above technical solution are as follows: The gap between the transition table and the inner wall of the through channel cannot be too large, otherwise the limiting effect will be poor.
[0019] As a further improvement of the present utility model, from the axial perspective of the chassis, the outer contour of the cross-section of the chassis coincides with the outer contour of the axial end of the hollow columnar part it contacts.
[0020] The beneficial effects of adopting the above technical solution are as follows: Since the chassis is firmly fixed to the workbench, the size of the chassis is relatively small to avoid the negative impact of the chassis volume, that is, to prevent interference between the equipment and the chassis when the hollow cylindrical parts are machined for the second time. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0022] Figure 1 is a schematic structural diagram of an embodiment of the present invention;
[0023] Figure 2 is a front view of a fixture rod of an embodiment of the present invention;
[0024] Figure 3 is a top view of a fixture rod of an embodiment of the present invention;
[0025] Figure 4 is a longitudinal sectional view of a locking nut of an embodiment of the present invention;
[0026] Figure 5 is a longitudinal sectional view of a hollow cylindrical part of an embodiment of the present invention;
[0027] Figure 6 is an axial view of a hollow cylindrical part of an embodiment of the present invention.
[0028] 1 - workbench; 2 - locking nut; 21 - cap body part; 22 - cap brim part; 3 - hollow cylindrical part; 31 - round tube part; 32 - flange part; 321 - through hole; 33 - through channel; 4 - fixture rod; 41 - chassis; 411 - countersunk hole; 42 - transition table; 43 - vertical column; 5 - countersunk screw. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0029] The following will further elaborate on the content of the present invention in combination with specific embodiments:
[0030] To achieve the purpose of the present invention, as Figures 1 to 6As shown in the figure, a processing fixture for a hydraulic hollow columnar component includes: an operating table 1; a fixture rod 4, and the integrated fixture rod 4 sequentially includes a chassis 41, a transition table 42, and a vertical column 43 along the axial direction. The radial dimensions of the chassis 41, the transition table 42, and the vertical column 43 gradually decrease; a locking nut 2 that can be threadedly assembled with the vertical column 43; wherein, the chassis 41 is fixed to the operating table 1; the vertical column 43 can pass through the hollow columnar component 3, and the operating table 1 and the locking nut 2 can respectively contact the two axial ends of the hollow columnar component 3; the hollow columnar component 3 has a through channel 33 for the vertical column 43 to pass through, and the outer wall side surface of the transition table 42 can achieve surface contact limit with the inner wall of the through channel 33.
[0031] The beneficial effects of adopting the above technical solution are as follows: This technical solution can reduce the processing time of the hollow columnar component, increase the working efficiency of the hollow columnar component and the fixture clamping, and improve the processing stability. During operation, place the hollow columnar component on the operating table, align the through channel with the transition table. The surface contact area between the through channel and the transition table is relatively large, and the contact position is also far from the main axis, so it plays a role of pre-fixation, and the stability of this pre-fixation is relatively good. At this time, the vertical column will naturally pass through the through channel, and the nut can be screwed onto the vertical column. As the nut is continuously screwed, the nut can axially press the hollow columnar component. After that, no matter where the hollow columnar component is subjected to secondary processing, the hollow columnar component is very stable. If there is only a nut without a transition table, even if the hollow columnar component is axially pressed, it may still deviate radially.
[0032] The hollow columnar component includes an integrated round tube portion 31 and a flange portion 32, and the flange portion 32 is provided with a plurality of axially penetrating through holes 321.
[0033] As Figure 2 、 Figure 3 As shown in the figure, in some other embodiments of the present invention, the chassis 41 includes a countersunk hole 411 observed axially, and a countersunk screw 5 is assembled in the countersunk hole 411, and the countersunk screw 5 fixes the chassis 41 to the operating table 1.
[0034] The beneficial effects of adopting the above technical solution are as follows: The operating table provides a more stable operating position with a larger area. The chassis and the operating table are fixedly assembled with each other.
[0035] As Figure 2 、 Figure 3 As shown in the figure, in some other embodiments of the present invention, a plurality of countersunk holes 411 are arranged in a circular array around the axis of the chassis 41.
[0036] The beneficial effects of adopting the above technical solution are as follows: There are more countersunk screws, ensuring the fixing strength.
[0037] In some other embodiments of the present utility model, the vertical column 43 has an external thread section, the locking nut 2 has an internal thread section, the external thread section and the internal thread section are movably assembled with each other, and the axial length of the external thread section is greater than the axial length of the internal thread section.
[0038] As Figure 4 shown, the locking nut 2 includes a cap body portion 21 and a cap brim portion 22. The radial dimension of the cap brim portion 22 is greater than the radial dimension of the cap body portion 21. The radial dimension of the cap brim portion 22 is greater than the radial dimension of the through channel 33. The cap brim portion 22 can contact one axial end of the hollow columnar component 3. The cap body portion 21 can be an external hexagon.
[0039] The beneficial effect of adopting the above technical solution is: to prevent the nut from falling into the through channel.
[0040] In some other embodiments of the present utility model, the cross-sectional profiles of the chassis 41, the transition table 42, and the vertical column 43 are all circular, and the chassis 41, the transition table 42, and the vertical column 43 are coaxially arranged.
[0041] The top edge of the transition table 42 can be chamfered.
[0042] The beneficial effect of adopting the above technical solution is: the overall shape is relatively symmetrical, ensuring uniform stress.
[0043] In some other embodiments of the present utility model, the axial dimensions of the vertical column 43, the chassis 41, and the transition table 42 gradually decrease, and the axial dimension of the vertical column 43 is greater than the axial dimension of the hollow columnar component 3.
[0044] The beneficial effect of adopting the above technical solution is: the transition table plays a role in limiting one axial end of the hollow columnar component.
[0045] In some other embodiments of the present utility model, the transition table 42 can be in interference fit or transitional fit with the through channel 33.
[0046] The beneficial effect of adopting the above technical solution is: the gap between the transition table and the inner wall of the through channel cannot be too large, otherwise the limiting effect will be poor.
[0047] As Figure 1 shown, in some other embodiments of the present utility model, from the axial perspective of the chassis 41, the outer contour of the cross-section of the chassis 41 coincides with the outer contour of the axial end of the hollow columnar component 3 it contacts.
[0048] The beneficial effect of adopting the above technical solution is: because the chassis is firmly fixed to the workbench, the size of the chassis is relatively small to avoid the negative impact of the chassis volume, that is, to prevent interference between the equipment and the chassis when the hollow columnar component is machined for the second time.
[0049] The above embodiments are only used to illustrate the technical concept and features of the present utility model. The purpose is to enable those skilled in the art to understand the content of the present utility model and implement it, and it cannot be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A processing fixture for a hydraulic hollow columnar component, characterized in that, Comprising: Workbench; Fixture rod, the integral fixture rod sequentially includes a chassis, a transition table, and a vertical column along the axis, and the radial dimensions of the chassis, the transition table, and the vertical column gradually decrease; Locking nut, capable of being threadedly assembled with the vertical column; Wherein, the chassis is fixed to the workbench; the vertical column can pass through the hollow columnar component, and the workbench and the locking nut can respectively contact the two axial ends of the hollow columnar component; the hollow columnar component has a through channel for the vertical column to pass through, and the outer wall side surface of the transition table can be in surface contact limit with the inner wall of the through channel.
2. The processing fixture for the hydraulic hollow columnar component according to claim 1, characterized in that: The chassis includes a countersunk hole observed axially, and a countersunk screw is assembled in the countersunk hole, and the countersunk screw fixes the chassis to the workbench.
3. The machining fixture for the hydraulic hollow columnar component according to claim 2, characterized in that: A plurality of countersunk holes are arranged in a circular array around the axis of the chassis.
4. The processing fixture for the hydraulic hollow columnar component according to claim 1, characterized in that: The vertical column has an external thread section, the locking nut has an internal thread section, the external thread section and the internal thread section are movably assembled with each other, the axial length of the external thread section is greater than the axial length of the internal thread section, the locking nut includes a cap body part and a cap brim part, the radial dimension of the cap brim part is greater than the radial dimension of the cap body part, the radial dimension of the cap brim part is greater than the radial dimension of the through channel, and the cap brim part can contact one axial end of the hollow columnar component.
5. The machining fixture for the hydraulic hollow columnar part according to claim 1, characterized in that: The cross-sectional profiles of the chassis, the transition table, and the vertical column are all circles, and the chassis, the transition table, and the vertical column are coaxially arranged.
6. The processing fixture for the hydraulic hollow columnar component according to claim 1, wherein: The axial dimensions of the vertical column, the chassis, and the transition table gradually decrease, and the axial dimension of the vertical column is greater than the axial dimension of the hollow columnar component.
7. The processing fixture for the hydraulic hollow columnar component according to claim 1, characterized in that: The transition table can be in interference fit or transition fit with the through channel.
8. The processing fixture for the hydraulic hollow columnar component according to claim 1, wherein: From the axial perspective of the chassis, the outer contour of the cross-section of the chassis coincides with the outer contour of the axial end of the hollow columnar component it contacts.