Positioning clamp for inclined hole machining

Abstract

The utility model discloses a positioning clamp for inclined hole machining, which comprises an adjusting seat, a part fixing seat capable of rotating relative to the adjusting seat, and an angle fixing component for fixing the part fixing seat at a required angle, a workpiece fixing assembly used for fixing a to-be-machined part is arranged on the side, away from the fixing base, of the part fixing base. The angle fixing assemblies are arranged between the part fixing base and the adjusting base, the angle of the part to be machined can be rapidly adjusted and fixed, operation is very convenient, precision is high, the angle adjusting holes corresponding to different angles are formed in the angle fixing assemblies, and the angle adjusting effect is good. And the device can be suitable for machining a plurality of inclined holes with different angles, and the application range is wide.

Description

Technical Field

[0001] This utility model relates to the field of machine tool fixture technology, and in particular to a positioning fixture for machining oblique holes. Background Technology

[0002] When machining through holes or angled holes, the parts need to be fixed in place. Traditional methods typically use a single-angle fixture to hold the parts in place. However, to machine multiple angled holes, frequent fixture changes are necessary, increasing operational complexity and reducing machining efficiency. Another common practice is to manually position the parts at a specified angle and then use glue to fix them to the machine. However, this method has low fixing accuracy, and glue residue easily remains on the surface of the parts after machining. This not only affects the appearance of the parts but may also adversely affect their subsequent use. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a positioning fixture for machining oblique holes, which can quickly and accurately fix the parts to be machined, is easy to operate, and has a wide range of applications.

[0004] To solve the above-mentioned technical problems, the present invention provides a positioning fixture for machining oblique holes, which is used to fix the part to be machined with an oblique hole. The fixture includes an adjusting seat, a part fixing seat that can rotate relative to the adjusting seat, and an angle fixing component for fixing the part fixing seat at a required angle. The part fixing seat is provided with a workpiece fixing component for fixing the part to be machined on the side away from the fixing seat.

[0005] Furthermore, the adjusting seat and the part fixing seat are connected by a rotating shaft so that the adjusting seat and the part fixing seat can rotate relative to each other.

[0006] Furthermore, the angle fixing component includes an angle fixing hole formed on the part fixing seat, an angle adjusting hole formed on the adjusting seat, and a fixing bolt. The distance between the angle adjusting hole and the rotating shaft is equal to the distance between the angle fixing hole and the rotating shaft. The line connecting the angle fixing hole and the rotating shaft is taken as the zero-degree line, and the line connecting the angle adjusting hole and the rotating shaft is taken as the angle line. An angle is formed between the angle line and the zero-degree line.

[0007] The angle adjustment holes are distributed in an arc shape with the rotating shaft as the center. The angle adjustment holes can be aligned with the angle fixing holes as the part fixing seat rotates. The fixing bolt can be inserted into the aligned angle adjustment holes and angle fixing holes to cooperate with the rotating shaft to fix the part fixing seat.

[0008] Furthermore, the adjustment seat is provided with an angle mark at the position corresponding to each of the angle adjustment holes, and the angle marked by the angle mark is the angle between the angle line corresponding to the angle adjustment hole and the zero-degree line.

[0009] Furthermore, the angle fixing assembly has several groups, and the several groups of angle fixing assemblies are distributed in an arc shape with the bearing as the center. Each of the several groups of angle fixing assemblies has several angle adjustment holes. The several angle adjustment holes of each group are different from the rotation angles of other groups. The adjustment seat is provided with an angle mark corresponding to the position of each angle adjustment hole in the several groups of angle fixing assemblies.

[0010] Furthermore, the workpiece fixing assembly includes an upper clamping block, a lower clamping block, and a driving component, wherein the upper clamping block and the lower clamping block move toward or away from each other under the drive of the driving component.

[0011] Furthermore, the lower clamping block is fixedly disposed on the side of the part fixing seat away from the adjusting seat, the upper clamping block is slidably disposed on the part fixing seat and located above the lower clamping block, and the driving member is disposed between the upper clamping block and the lower clamping block.

[0012] Furthermore, the driving component includes a screw and a nut. The upper clamping block has a vertical through hole. The nut is rotatably positioned on the upper end of the upper clamping block corresponding to the through hole. The screw hole of the nut is coaxial with the through hole. The lower end of the screw is fixedly connected to the lower clamping block. The upper end of the screw passes through the through hole and is screwed to the nut. The side of the upper clamping block near the part fixing seat abuts against the part fixing seat.

[0013] Furthermore, the upper clamping block has a vertical first limiting surface, and the lower clamping block has a vertical second limiting surface at a position corresponding to the first limiting surface. The first limiting surface and the second limiting surface are used to limit the horizontal movement of the workpiece to be processed.

[0014] Furthermore, the upper clamping block has a first slot on the side away from the adjusting seat. The first slot is recessed along the width direction of the upper clamping block from bottom to top and from away from the adjusting seat to closer to the adjusting seat. The first limiting surface is the vertical wall surface of the first slot. The lower clamping block has a second slot at the position corresponding to the first slot. The second slot is recessed from top to bottom and from away from the adjusting seat to closer to the adjusting seat. The second limiting surface is the vertical wall surface of the second slot.

[0015] The positioning fixture for machining oblique holes of this utility model has at least the following beneficial effects: several sets of angle fixing components are set between the part fixing seat and the adjusting seat to realize the rapid adjustment and fixing of the angle of the part to be machined. The operation is very convenient and the precision is high. Moreover, the angle fixing components have several angle adjustment holes corresponding to different angles, so that this device can be used to machine oblique holes of several different angles and has a wide range of applications. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a positioning fixture for machining oblique holes according to an embodiment of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a positioning fixture for machining oblique holes according to an embodiment of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the structure of a positioning fixture for machining oblique holes according to an embodiment of the present invention. Figure 3 ;

[0020] Figure 4 This is a structural schematic diagram of the part fixing seat in an embodiment of the positioning fixture for machining oblique holes according to this utility model.

[0021] The meanings of the labels in the attached diagram are as follows:

[0022] Adjustment seat 1, horizontal part 11, vertical part 12, opening 13, rotating shaft 14, part fixing seat 2, angle fixing assembly 3, angle fixing hole 31, angle adjusting hole 32, fixing bolt 33, angle mark 34, workpiece fixing assembly 4, upper clamping block 41, first slot 411, through hole 412, lower clamping block 42, second slot 421, driving component 43, screw 431, nut 432, limiting assembly 5, limiting block 51, limiting groove 52. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Please refer to Figure 1 and Figure 2The present invention provides a positioning fixture for machining oblique holes, which is used to fix the part to be machined with an oblique hole. It includes an adjusting seat 1, a part fixing seat 2 that can rotate relative to the adjusting seat 1, and an angle fixing component 3 for fixing the part fixing seat 2 at a required angle. The part fixing seat 2 is provided with a workpiece fixing component 4 for fixing the part to be machined on the side away from the fixing seat.

[0025] The adjusting seat 1 includes a horizontal part 11 and a vertical part 12. A vertical opening 13 is vertically formed in the middle of the horizontal part 11, allowing the user to fix the adjusting seat 1 to the machine tool using bolts or plugs. The vertical part 12 is fixedly disposed on one side of the horizontal part 11, and a horizontal rotating shaft 14 is provided on the vertical part 12. The rotating shaft 14 is perpendicular to the vertical part 12 and located on its central axis.

[0026] The part fixing seat 2 is vertically disposed on the side of the vertical part 12 away from the horizontal part 11, and the part fixing seat 2 is rotatably connected to the side of the rotating shaft 14 away from the vertical part 12, so that the part fixing seat 2 and the adjusting seat 1 can rotate relative to each other. The connection between the rotating shaft 14 and the part fixing seat 2 is located on the central axis of the part fixing seat 2, and the side of the part fixing seat 2 near the adjusting seat 1 is parallel to the corresponding side wall of the adjusting seat 1.

[0027] The workpiece fixing assembly 4 includes an upper clamping block 41, a lower clamping block 42, and a driving member 43. The upper clamping block 41 and the lower clamping block 42 move towards or away from each other under the drive of the driving member 43. The lower clamping block 42 is horizontally fixed on the side of the part fixing seat 2 away from the adjusting seat 1, and the lower clamping block 42 is located at the lowest end of this side wall of the part fixing seat 2. The lower clamping block 42 has a second slot 421, which is formed along the width direction of the lower clamping block 42. More specifically, the second slot 421 is recessed from top to bottom and from away from the adjusting seat 1 towards the adjusting seat 1. The second slot 421 has a horizontal wall surface and a vertical wall surface, and the vertical wall surface of the second slot 421 is a second limiting surface. The upper clamping block 41 is horizontally disposed on the part fixing seat 2 above the lower clamping block 42, and the upper clamping block 41 can slide vertically relative to the part fixing seat 2 to move closer to or away from the lower clamping block 42. The side of the upper clamping block 41 closest to the part fixing seat 2 abuts against the part fixing seat 2. Please refer to... Figure 3The upper clamping block 41 has a first slot 411, which is recessed along the width direction of the upper clamping block 41 from bottom to top and from away from the adjusting seat 1 towards the adjusting seat 1. The position of the first slot 411 corresponds to the position of the second slot 421. The first slot 411 also has a horizontal wall and a vertical wall, and the vertical wall of the first slot 411 is a first limiting surface. The driving member 43 is disposed between the upper clamping block 41 and the lower clamping block 42, and includes a screw 431 and a nut 432. The nut 432 is rotatably disposed on the upper end face of the upper clamping block 41. The upper clamping block 41 has a through hole 412 at the position corresponding to the screw hole of the nut 432. The through hole 412 vertically passes through the upper clamping block 41 and is coaxially connected to the screw hole. The inner diameter of the through hole 412 matches the inner diameter of the screw hole. The screw 431 is inserted into the through hole 412. The lower end of the screw 431 extends downward to be fixedly connected to the upper end face of the lower clamping block 42, and the upper end of the screw 431 extends upward to pass through the through hole 412 and be screwed to the nut 432.

[0028] The part fixing base 2 is also provided with a limiting component 5 for making the connection between the workpiece fixing assembly 4 and the part fixing base 2 more stable. The limiting component 5 includes a limiting block 51 and a limiting groove 52. The limiting block 51 is fixedly disposed on the side of the part fixing base 2 facing the workpiece fixing assembly 4, the limiting block 51 is vertically disposed and the limiting block 51 is T-shaped. The limiting groove 52 is opened on the side of the upper clamping block 41 near the part fixing base 2, and the limiting groove 52 is T-shaped to match the limiting block 51. The limiting block 51 and the limiting groove 52 are slidably connected.

[0029] Please refer to Figure 2 and Figure 4The angle fixing component 3 is disposed between the adjusting seat 1 and the part fixing seat 2, and includes an angle fixing hole 31 formed on the part fixing seat 2, an angle adjusting hole 32 formed on the adjusting seat 1, and a fixing bolt 33. The angle fixing hole 31 is horizontally formed on one side wall of the part fixing seat 2 near the adjusting seat 1. The angle adjusting hole 32 is horizontally formed through the vertical part 12. Several angle adjusting holes 32 are arranged in an arc shape with the rotating shaft 14 as the center. The distance between each angle adjusting hole 32 and the rotating shaft 14 is equal to the distance between the angle fixing hole 31 and the rotating shaft 14. The angle adjusting holes 32 can be aligned with the angle fixing holes 31 as the part fixing seat 2 rotates. The line connecting the angle fixing hole 31 and the rotating shaft 14 is the zero-degree line, and the line connecting the angle adjusting hole 32 and the rotating shaft 14 is the angle line. The angle line and the zero-degree line form an angle. An angle mark 34 is provided on the adjustment seat 1 at the position corresponding to each of the angle adjustment holes 32. The angle marked by the angle mark 34 is the angle between the angle line corresponding to the angle adjustment hole 32 and the zero-degree line.

[0030] As described above, the angle fixing assembly 3 comprises several groups, which are arranged in an arc shape with the bearing as the center. Each group of angle fixing assemblies 3 has several angle adjustment holes 32, and the angle adjustment holes 32 of each group are different from those of the other groups in terms of rotation angle. The adjustment seat 1 is provided with an angle mark 34 corresponding to the position of each angle adjustment hole 32 in the group of angle fixing assemblies 3. The fixing bolt 33 is used to be inserted into the aligned angle fixing adjustment hole and angle fixing hole 31 to cooperate with the rotating shaft 14 to fix the part fixing seat 2.

[0031] Because some of the angled holes required for part machining are quite close, such as 3 degrees and 5 degrees, and the angle adjustment hole 32 has a certain size, directly setting these adjacent angles together would not only make machining difficult, but also result in a smaller inner diameter of the angle adjustment hole 32. Consequently, the fixing bolt 33 would also need to be reduced in size, and its strength would decrease after the outer diameter of the fixing bolt 33 is reduced, making it less stable than a fixing bolt 33 with a larger outer diameter. Setting several sets of angle fixing components 3 avoids these problems. With this arrangement, there are also several angle fixing holes 31, allowing the fixing bolt 33 to be inserted into different angle fixing holes 31 as needed. Wear caused by insertion and removal will not be concentrated on only one angle fixing hole 31.

[0032] The working principle of one embodiment of the positioning fixture for oblique hole machining of this utility model is as follows: One of the plurality of angle adjustment holes 32 corresponds to zero degrees. When this angle adjustment hole 32 is aligned with the corresponding angle fixing hole 31, the part fixing seat 2 is in a vertical position and does not deflect relative to the adjustment seat 1. Initially, the zero-degree angle adjustment hole 32 is aligned with the corresponding angle fixing hole 31, and the fixing bolt 33 is inserted therein. The worker first fixes the part to be machined onto the part fixing seat 2 using the workpiece fixing assembly 4, as follows:

[0033] The part is placed on the lower clamping block 42, specifically within the second slot 421, so that the part is in contact with both walls of the second slot 421. These two walls provide vertical and horizontal limits for the part, respectively. Then, the nut 432 is rotated, causing it to move vertically along the screw 431, thereby moving the connected upper clamping block 41 vertically. The upper clamping block 41 moves closer to or further away from the lower clamping block 42. When the upper clamping block 41 approaches the lower clamping block 42, the first slot 411 and the second slot 421 engage to secure the part. The part is also in contact with both walls of the first slot 411, which provide vertical and horizontal limits for the part, respectively.

[0034] Next, adjust the angle of the part fixing seat 2. First, pull out the fixing bolt 33, then rotate the part fixing seat 2 relative to the adjusting seat 1. According to the needs of part processing, select a suitable angle adjustment hole 32 and align it with the corresponding angle fixing hole 31. Insert the fixing bolt 33 into the angle adjustment hole 32 and the angle fixing hole 31, and fix the adjusting seat 1 and the part fixing seat 2 relative to each other.

[0035] Finally, the entire device is fixed to the machine base through the perforation 412, and the machining of the oblique hole can begin.

[0036] Compared with the prior art, the positioning fixture for oblique hole machining of this utility model has several sets of angle fixing components 3 set between the part fixing seat 2 and the adjusting seat 1, so as to realize the rapid adjustment and fixing of the angle of the part to be machined. The operation is very convenient and the precision is high. Moreover, the angle fixing component 3 has several angle adjustment holes 32 corresponding to different angles, so that this device can be used to machine oblique holes of several different angles, and has a wide range of applications.

Claims

1. A positioning fixture for machining oblique holes, used to fix a part with an oblique hole to be machined, characterized in that: It includes an adjusting seat, a part fixing seat that can rotate relative to the adjusting seat, and an angle fixing assembly for fixing the part fixing seat at a desired angle. The part fixing seat is provided with a workpiece fixing assembly for fixing the part to be processed on the side away from the adjusting seat.

2. The positioning fixture for machining oblique holes as described in claim 1, characterized in that: The adjusting seat and the part fixing seat are connected by a rotating shaft so that the adjusting seat and the part fixing seat can rotate relative to each other.

3. The positioning fixture for machining oblique holes as described in claim 2, characterized in that: The angle fixing assembly includes an angle fixing hole on the part fixing seat, an angle adjusting hole on the adjusting seat, and a fixing bolt. The distance between the angle adjusting hole and the rotating shaft is equal to the distance between the angle fixing hole and the rotating shaft. The line connecting the angle fixing hole and the rotating shaft is the zero-degree line, and the line connecting the angle adjusting hole and the rotating shaft is the angle line. The angle line and the zero-degree line form an angle. The angle adjustment holes are distributed in an arc shape with the rotating shaft as the center. The angle adjustment holes can be aligned with the angle fixing holes as the part fixing seat rotates. The fixing bolt can be inserted into the aligned angle adjustment holes and angle fixing holes to cooperate with the rotating shaft to fix the part fixing seat.

4. The positioning fixture for machining oblique holes as described in claim 3, characterized in that: An angle mark is provided on the adjustment seat at the position corresponding to each of the angle adjustment holes. The angle marked by the angle mark is the angle between the angle line corresponding to the angle adjustment hole and the zero-degree line.

5. The positioning fixture for machining oblique holes as described in claim 3, characterized in that: The angle fixing components are in several groups, and the several groups of angle fixing components are distributed in an arc shape with the rotating shaft as the center. Each of the several groups of angle fixing components has several angle adjustment holes. The several angle adjustment holes of each group are different from the rotation angles of other groups. The adjustment seat is provided with an angle mark corresponding to the position of each angle adjustment hole in the several groups of angle fixing components.

6. The positioning fixture for machining oblique holes as described in claim 1, characterized in that: The workpiece fixing assembly includes an upper clamping block, a lower clamping block, and a driving component. The upper clamping block and the lower clamping block move towards or away from each other under the drive of the driving component.

7. The positioning fixture for machining oblique holes as described in claim 6, characterized in that: The lower clamping block is fixedly disposed on the side of the part fixing seat away from the adjusting seat, the upper clamping block is slidably disposed on the part fixing seat and located above the lower clamping block, and the driving member is disposed between the upper clamping block and the lower clamping block.

8. The positioning fixture for machining oblique holes as described in claim 7, characterized in that: The driving component includes a screw and a nut. The upper clamping block has a vertical through hole. The nut is rotatably positioned on the upper end of the upper clamping block corresponding to the through hole. The screw hole of the nut is coaxial with the through hole. The lower end of the screw is fixedly connected to the lower clamping block. The upper end of the screw passes through the through hole and is screwed to the nut. The side of the upper clamping block near the part fixing seat abuts against the part fixing seat.

9. The positioning fixture for machining oblique holes as described in claim 6, characterized in that: The upper clamping block has a vertical first limiting surface, and the lower clamping block has a vertical second limiting surface at a position corresponding to the first limiting surface. The first limiting surface and the second limiting surface are used to limit the horizontal movement of the workpiece to be processed.

10. The positioning fixture for machining oblique holes as described in claim 9, characterized in that: The upper clamping block has a first slot on the side away from the adjusting seat. The first slot is recessed along the width direction of the upper clamping block from bottom to top and from away from the adjusting seat to closer to the adjusting seat. The first limiting surface is the vertical wall surface of the first slot. The lower clamping block has a second slot at the position corresponding to the first slot. The second slot is recessed from top to bottom and from away from the adjusting seat to closer to the adjusting seat. The second limiting surface is the vertical wall surface of the second slot.

Images