A special-shaped high-precision concentric hole finishing fixture
By designing a special-shaped high-precision concentric hole precision fixture, the coordination of the positioning sleeve and adjustable wear-resistant block is solved, and the problem that multiple parallel holes in the U-shaped slanting seat cannot be kept concentric, achieving concentric alignment of the holes and improving the opening accuracy.
Patent Information
- Application Number
- CN202421414758.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-20
AI Technical Summary
When opening the U-shaped sway seat, the holes in multiple parallel parts cannot remain concentric, especially when the U-shaped sway seat is inclined, the axial direction of the hole will appear inclined, resulting in the holes not being concentric.
A special-shaped high-precision concentric hole precision fixture is designed, including a positioning sleeve and an adjustable wear-resistant block. The position of the adjustable wear-resistant block is adjusted through the inverted cone adjustment rod to ensure that the U-shaped sway seat is axially aligned with the positioning sleeve, thereby maintaining the concentricity of the hole.
It effectively ensures that the holes opened in each parallel part of the U-shaped slanting seat remain coaxial in the axial direction, solves the problem of axial inclination of the hole and improves the hole opening accuracy.
Smart Images
Figure CN222696542U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of clamps, in particular to a special-shaped high-precision concentric hole finishing clamp. Background Art
[0002] When drilling holes in the U-shaped deflection seat, if there are multiple parallel parts on the U-shaped deflection seat, and holes need to be drilled in the multiple parallel parts respectively, the multiple holes in the U-shaped deflection seat are also used as holes for installing the rotating shaft. At this time, the holes inside the multiple parallel parts on the U-shaped deflection seat are required to be coaxial.
[0003] When there are multiple parallel parts on the U-shaped deflection seat and holes need to be opened in each parallel part separately, if the parallel parts are not directly connected together to form a complete whole, then when holes are opened in the parallel parts of the U-shaped deflection seat, once the U-shaped deflection seat is tilted, the axial direction of the holes opened in the parallel parts of the U-shaped deflection seat will be tilted, and the holes opened in the parallel parts cannot remain concentric in the axial direction of the U-shaped deflection seat. Utility Model Content
[0004] The utility model aims to provide a special-shaped high-precision concentric hole finishing fixture, which can ensure that the holes opened in the parallel parts of the U-shaped deflection seat keep the axis alignment when opening the hole of the U-shaped deflection seat.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A special-shaped high-precision concentric hole finishing fixture, comprising a positioning sleeve, the positioning sleeve comprising a main body, a fixing cavity and an adjustment groove are provided in the main body along the axial direction; the adjustment groove is connected to the fixing cavity and is recessed along the radial direction of the main body; at least two adjustment holes are provided in the main body along the radial direction, and the adjustment holes are connected to the adjustment groove;
[0007] The U-shaped deflection seat is installed in the main body along the fixed cavity; the adjustable wear-resistant block is installed in the main body along the adjustment groove; the inverted cone adjustment rod is installed in the main body through the adjustment hole, and the inverted cone adjustment rod pushes the adjustable wear-resistant block to fit one side of the U-shaped deflection seat along the longitudinal direction; the inverted cone adjustment rod is rotated to drive the adjustable wear-resistant block to move, and the adjustable wear-resistant block pushes the U-shaped deflection seat to a direction consistent with the axial direction of the positioning sleeve to ensure that the holes opened on the parallel parts of the U-shaped deflection seat remain coaxial in the axial direction of the U-shaped deflection seat.
[0008] Preferably, a support groove is provided in the adjustable wear-resistant block; the end of the inverted cone adjustment rod abuts against the support groove to press the adjustable wear-resistant block to the side of the U-shaped deflection seat.
[0009] Preferably, a plurality of dynamic balance adjustment holes are opened in the main body along the axial direction; the dynamic balance adjustment holes are distributed around the fixed cavity.
[0010] Preferably, a lead column is filled in the dynamic balance adjustment hole.
[0011] Preferably, a screw fixes the baffle plate to one end of the main body; the baffle plate supports the U-shaped deflection seat from one end.
[0012] Preferably, the U-shaped deflection seat includes a side plate, a first support plate and a second support plate are vertically arranged on one side of the side plate, and the first support plate and the second support plate are respectively close to two ends of the side plate.
[0013] The beneficial effects of the utility model are as follows:
[0014] The U-shaped deflection seat is placed into the main body along the fixed cavity, the adjustable wear-resistant block is placed into the adjustment groove along the axial direction, the inverted cone adjustment rod is moved in the lateral direction, and the adjustable wear-resistant block is pressed onto the U-shaped deflection seat in the lateral direction. The inverted cone adjustment rod is moved in the lateral direction in the main body to adjust the lateral position of the upper or lower part of the adjustable wear-resistant block, the adjustable wear-resistant block pushes the upper and lower parts of the U-shaped deflection seat to move in the lateral direction, and the U-shaped deflection seat is adjusted to a position aligned with the axial direction of the positioning sleeve, ensuring that the holes opened in the parallel parts of the U-shaped deflection seat maintain axial alignment in the axial direction of the positioning sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A three-dimensional diagram of the utility model of a special-shaped high-precision concentric hole finishing fixture;
[0016] Figure 2 This is a stereoscopic view of the special-shaped high-precision concentric hole finishing fixture viewed from the side and below;
[0017] Figure 3 A three-dimensional diagram of the positioning sleeve of the utility model;
[0018] Figure 4 A three-dimensional view of one end of the positioning sleeve of the utility model;
[0019] Figure 5 A three-dimensional diagram of the U-shaped deflection seat of the utility model;
[0020] Figure 6 It is a stereoscopic diagram of the U-shaped deflection seat, the adjustable wear-resistant block and the inverted cone adjustment rod of the utility model.
[0021] Reference numerals:
[0022] 1. U-shaped deflection seat; 11. First support plate; 12. Side plate; 13. Second support plate; 2. Adjustable wear-resistant block; 21. Support groove; 3. Inverted cone adjustment rod; 4. Positioning sleeve; 41. Main body; 42. Fixed cavity; 43. Dynamic balance adjustment hole; 44. Adjustment groove; 45. Adjustment hole; 5. Baffle; 6. Screw. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0024] When there are multiple parallel parts on the U-shaped deflection seat and holes need to be opened in each parallel part separately, if the parallel parts are not directly connected together to form a complete whole, then when holes are opened in the parallel parts of the U-shaped deflection seat, once the U-shaped deflection seat is tilted, the axial direction of the holes opened in the parallel parts of the U-shaped deflection seat will be tilted, and the holes opened in the parallel parts cannot remain concentric in the axial direction of the U-shaped deflection seat.
[0025] For the above technical issues, refer to Figure 1 , Figure 2 and Figure 3 The present embodiment provides a special-shaped high-precision concentric hole finishing fixture, including a positioning sleeve 4 including a main body 41, a fixing cavity 42 and an adjustment groove 44 are opened in the main body 41 along the axial direction, the adjustment groove 44 is connected to the fixing cavity 42 and is recessed along the radial direction of the main body 41, and the cross-sections of the adjustment groove 44 and the fixing cavity 42 form a convex shape.
[0026] At least two adjustment holes 45 are radially opened in the main body 41 . In this embodiment, an adjustment hole 45 is respectively opened in the upper part and the lower part of the main body 41 , and the adjustment hole 45 is connected to the adjustment groove 44 .
[0027] First, the U-shaped deflection seat 1 is installed in the main body 41 along the fixed cavity 42, and the adjustable wear-resistant block 2 is installed in the main body 41 along the adjustment groove 44. The adjustable wear-resistant block 2 abuts against the upper side of the U-shaped deflection seat 1 from one side, and the U-shaped deflection seat 1 is pushed along the radial direction of the main body 41 to a position consistent with the axial direction of the main body 41.
[0028] Reference Figure 2 and Figure 4The inverted cone adjustment rod 3 is installed in the main body 41 through the adjustment hole 45, and the inverted cone adjustment rod 3 pushes the adjustable wear-resistant block 2 to fit on one side of the U-shaped deflection seat 1 along the longitudinal direction. The inverted cone adjustment rod 3 is rotated, and the inverted cone adjustment rod 3 pushes the adjustable wear-resistant block 2 to move along the lateral direction when moving along the lateral direction in the adjustment hole 45. The positions of the upper and lower parts of the adjustable wear-resistant block 2 are adjusted respectively by the two inverted cone adjustment rods 3. The upper and lower parts of the adjustable wear-resistant block 2 can respectively push the upper and lower parts of the U-shaped deflection seat 1 to move in the fixed cavity 42, so as to adjust the lateral positions of the upper and lower parts of the U-shaped deflection seat 1, and adjust the U-shaped deflection seat 1 to a position consistent with the axial direction of the positioning sleeve 4.
[0029] Reference Figure 6 , driving the adjustable wear-resistant block 2 to move, the adjustable wear-resistant block 2 is used to push the U-shaped deflection seat 1 to a direction consistent with the axial direction of the positioning sleeve 4. When the U-shaped deflection seat 1 and the positioning sleeve 4 are in the same axial direction, when the mutually parallel parts of the U-shaped deflection seat 1 are simultaneously drilled, the drilling tool moves along the axial direction of the U-shaped deflection seat 1 and the positioning sleeve 4, and the axial direction of the holes drilled in the mutually parallel parts of the U-shaped deflection seat 1 is consistent with the axial direction of the U-shaped deflection seat 1 and the positioning sleeve 4. Ensure that the holes drilled in the mutually parallel parts of the U-shaped deflection seat 1 are coaxial in the axial direction of the U-shaped deflection seat 1.
[0030] Reference Figure 6 A support groove 21 is provided in the adjustable wear-resistant block 2, and the end of the inverted cone adjustment rod 3 abuts against the support groove 21, and the inverted cone adjustment rod 3 is moved laterally in the main body 41, and one end of the main body 41 pushes the adjustable wear-resistant block 2 to move laterally in the support groove 21, and the adjustable wear-resistant block 2 is pressed to the side of the U-shaped deflection seat 1. In addition, the upper and lower parts of the adjustable wear-resistant block 2 can be adjusted by moving the two inverted cone adjustment rods 3 respectively, so as to adjust the tilt positions of the upper and lower parts of the U-shaped deflection seat 1 respectively.
[0031] Reference Figure 4 A plurality of dynamic balance adjustment holes 43 are provided in the main body 41 along the axial direction, and the dynamic balance adjustment holes 43 are distributed around the fixed cavity 42. The dynamic balance adjustment holes 43 are filled with lead columns. The lead columns are used to keep the main body 41 balanced when rotating.
[0032] Reference Figure 2 The screw 6 fixes the baffle 5 at one end of the main body 41, and the U-shaped deflection seat 1 is placed in the main body 41 along the axial direction. The baffle 5 supports the U-shaped deflection seat 1 from one end.
[0033] Reference Figure 5The U-shaped deflection seat 1 includes a side plate 12, a first support plate 11 and a second support plate 13 are vertically arranged on one side of the side plate 12, and the first support plate 11 and the second support plate 13 are respectively close to the two ends of the side plate 12. In this embodiment, the U-shaped deflection seat 1 includes two independent and parallel parts, namely the first support plate 11 and the second support plate 13, and holes need to be opened in the first support plate 11 and the second support plate 13 during processing.
[0034] The adjustable wear-resistant block 2 is pushed to move in the lateral direction by the inverted cone adjustment rod 3, and the adjustable wear-resistant block 2 can push the first support plate 11 or the second support plate 13 to move in the lateral direction respectively, so as to adjust the first support plate 11 and the second support plate 13 to a position axially aligned with the main body 41, ensuring that the holes opened in the first support plate 11 and the second support plate 13 are coaxial in the axial direction of the main body 41.
[0035] Working principle:
[0036] The U-shaped deflection seat 1 is placed into the main body 41 along the fixed cavity 42, the adjustable wear-resistant block 2 is placed into the adjustment groove 44 along the axial direction, the inverted cone adjustment rod 3 is moved in the lateral direction, and the adjustable wear-resistant block 2 is pressed onto the U-shaped deflection seat 1 in the lateral direction. The inverted cone adjustment rod 3 is moved in the lateral direction in the main body 41 to adjust the lateral position of the upper or lower part of the adjustable wear-resistant block 2, the adjustable wear-resistant block 2 pushes the upper and lower parts of the U-shaped deflection seat 1 to move in the lateral direction, and the U-shaped deflection seat 1 is adjusted to a position aligned with the axial direction of the positioning sleeve 4, ensuring that the holes opened in the parallel parts of the U-shaped deflection seat 1 maintain axial alignment in the axial direction of the positioning sleeve 4.
[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A special-shaped high-precision concentric hole finishing fixture, characterized in that , comprising a positioning sleeve (4), the positioning sleeve (4) comprising a main body (41), a fixing cavity (42) and an adjustment groove (44) being provided in the main body (41) along the axial direction; the adjustment groove (44) being connected to the fixing cavity (42) and being recessed along the radial direction of the main body (41); at least two adjustment holes (45) being provided in the main body (41) along the radial direction, the adjustment holes (45) being connected to the adjustment groove (44); The U-shaped deflection seat (1) is installed in the main body (41) along the fixed cavity (42); the adjustable wear-resistant block (2) is installed in the main body (41) along the adjustment groove (44); The inverted cone adjustment rod (3) is installed in the main body (41) through the adjustment hole (45), and the inverted cone adjustment rod (3) pushes the adjustable wear-resistant block (2) to fit on one side of the U-shaped deflection seat (1) along the longitudinal direction; the inverted cone adjustment rod (3) is rotated to drive the adjustable wear-resistant block (2) to move, and the adjustable wear-resistant block (2) pushes the U-shaped deflection seat (1) to a direction consistent with the axial direction of the positioning sleeve (4), so as to ensure that the holes opened on the parallel parts of the U-shaped deflection seat (1) remain coaxial in the axial direction of the U-shaped deflection seat (1).
2. According to claim 1, the special-shaped high-precision concentric hole finishing fixture is characterized in that A support groove (21) is provided in the adjustable wear-resistant block (2); the end of the inverted cone adjustment rod (3) abuts against the support groove (21) to press the adjustable wear-resistant block (2) to the side of the U-shaped deflection seat (1).
3. According to claim 1, the special-shaped high-precision concentric hole finishing fixture is characterized in that A plurality of dynamic balance adjustment holes (43) are provided in the main body (41) along the axial direction; the dynamic balance adjustment holes (43) are distributed around the fixed cavity (42).
4. According to claim 3, the special-shaped high-precision concentric hole finishing fixture is characterized in that , a lead column is filled in the dynamic balance adjustment hole (43).
5. According to claim 1, the special-shaped high-precision concentric hole finishing fixture is characterized in that The screw rod (6) fixes the baffle plate (5) to one end of the main body (41); the baffle plate (5) supports the U-shaped deflection seat (1) from one end.
6. The special-shaped high-precision concentric hole finishing fixture according to claim 1 is characterized in that The U-shaped deflection seat (1) comprises a side plate (12), a first support plate (11) and a second support plate (13) are vertically arranged on one side of the side plate (12), and the first support plate (11) and the second support plate (13) are respectively close to two ends of the side plate (12).