CN216939472U - Drilling machine expanding clamp - Google Patents
Drilling machine expanding clamp Download PDFInfo
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- CN216939472U CN216939472U CN202121446303.8U CN202121446303U CN216939472U CN 216939472 U CN216939472 U CN 216939472U CN 202121446303 U CN202121446303 U CN 202121446303U CN 216939472 U CN216939472 U CN 216939472U
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- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 4
- 238000013459 approach Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a drilling machine expansion clamp which comprises a main body and a flat pad, wherein the main body is provided with a plurality of grooves; the body comprises a first body and a second body which are coaxial; the top of the first main body is connected with a drill chuck of a drilling machine, and the bottom of the first main body is connected with the second main body; the flat gasket is sleeved outside the first main body and moves linearly along the axial direction of the first main body; the second body is provided with a first jaw assembly and/or a second jaw assembly. The top of a first cylindrical pin of the first jaw assembly is in contact with the bottom surface of the flat pad, the first cylindrical pin which is obliquely arranged penetrates through the second main body, and the bottom of the first cylindrical pin is in contact with the outside of a first workpiece to be measured; the top of a second cylindrical pin obliquely arranged of the second jaw assembly contacts the bottom surface of the flat pad, the second cylindrical pin penetrates through the second main body, and the bottom of the second cylindrical pin is arranged in a second workpiece to be detected and provided with a round hole, and contacts with the inner wall surface of the round hole. This novel drilling machine clamping scope that can increase can be according to different parts machining special fixture. Simple structure and low cost.
Description
Technical Field
The utility model relates to the field of mechanical drilling machines, in particular to an expansion clamp of a drilling machine.
Background
When the drilling machine is assembled with a workpiece, the workpiece needs to be subjected to various machining such as deburring, polishing or micro-removing by using the drilling machine, but the clamping range of a drill chuck of the drilling machine is limited, the special clamp is high in cost, and the universality is not suitable for other parts with changed diameters or inner diameters.
Therefore, a simple-structured jig capable of enlarging the clamping range is required.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides the drill press expanding clamp which is simple in structure, low in cost and capable of enlarging the clamping range of a drill press. In order to achieve the purpose, the utility model adopts the following specific technical scheme:
a drill press extension fixture, comprising: a main body and a flat pad;
the body comprises a first body and a second body which are coaxial;
the top of the first main body is connected with a drill chuck of a drilling machine, and the bottom of the first main body is connected with the second main body;
the flat gasket is sleeved outside the first main body and linearly moves along the axial direction of the first main body;
the second main body is provided with a first jaw assembly and/or a second jaw assembly;
the first jaw assembly includes: a plurality of first cylindrical pins arranged around the circumference of the second body, wherein the first cylindrical pins are obliquely arranged relative to the axis of the second body, and the horizontal distance from the top of each first cylindrical pin to the axis of the second body is greater than that from the bottom of each first cylindrical pin to the axis of the second body;
the top of the first cylindrical pin is in contact with the bottom surface of the flat pad, the first cylindrical pin penetrates through the second main body, and the bottom of the first cylindrical pin is in contact with the outside of a first workpiece to be measured;
the flat pad moves towards the direction close to the first workpiece, and the first cylindrical pins are driven to move along the axial direction of the first cylindrical pins so as to clamp the first workpiece;
the second jaw assembly comprises: a plurality of second cylindrical pins arranged around the circumference of the second body, wherein the second cylindrical pins are obliquely arranged relative to the axis of the second body, and the horizontal distance from the top parts of the second cylindrical pins to the axis of the second body is greater than the horizontal distance from the bottom parts of the second cylindrical pins to the axis of the second body;
the top of the second cylindrical pin is in contact with the bottom surface of the flat pad, the second cylindrical pin penetrates through the second main body, and the bottom of the second cylindrical pin is arranged in a second workpiece to be detected, provided with a round hole, and is in contact with the inner wall surface of the round hole;
the flat pad moves towards the direction close to the second workpiece, and drives the second cylindrical pins to move along the axial direction of the second cylindrical pins so as to clamp the second workpiece.
Furthermore, the flat pad is provided with an internal thread, and the first main body is provided with an external thread matched with the internal thread.
The first main body is provided with a first groove, and the first groove is communicated with the first groove;
the flat gasket is clamped between the first cylindrical pin and the nut or between the second cylindrical pin and the nut.
Furthermore, a plurality of guide holes arranged along the radial direction of the main body are formed in the outer surface of the second main body;
the guide nail connected with the first cylindrical pin is connected with the first cylindrical pin in a sliding mode along the axial direction of the first cylindrical pin;
and the guide nail connected with the second cylindrical pin is connected with the second cylindrical pin in a sliding manner along the axial direction of the second cylindrical pin.
Furthermore, a plurality of the first cylindrical pins or a plurality of the second cylindrical pins are uniformly distributed in the circumferential direction of the second main body.
Furthermore, the number of the first cylindrical pins is three, and the number of the second cylindrical pins is three.
Further, when the second body is provided with first jaw assemblies and second jaw assemblies, the number of the first cylindrical pins is equal to that of the second cylindrical pins, and one first cylindrical pin is arranged between two adjacent second cylindrical pins.
The utility model can obtain the following technical effects:
the drilling machine expansion clamp provided by the utility model is simple in structure and low in cost. Only the main bodies of common cylindrical pins, flat pads and shafts in the mechanical field are used, the control system with high cost such as electric or pneumatic is not involved, and the cost is effectively reduced. When in use, the moving distance of the flat cushion is controlled manually, and the operation is simple.
The flexible drilling machine clamping device has flexibility and can enlarge the clamping range of the drilling machine. The first jaw assembly can be used for machining the outer diameter part of the shaft, and the second jaw assembly can be used for machining a workpiece with an inner hole. When first jack catch subassembly and second jack catch subassembly all integrated on drilling machine extension anchor clamps, it has two kinds of functions to belong to an thing, further the cost is reduced. Both the second jaw assembly and the second jaw assembly can be adapted to more workpiece sizes by moving the flat pad down to change the radial distance of the bottom of the respective cylindrical pin.
The main bodies of the cylindrical pin, the flat pad and the shaft are movably connected, so that any part related to the drilling machine expansion clamp is convenient to disassemble and maintain.
Drawings
FIG. 1 is a schematic perspective view of an expanding fixture of a drilling machine according to the present invention;
FIG. 2 is a schematic front view of an expanding fixture for a drilling machine according to the present invention;
FIG. 3 is a schematic perspective view of two jaw assemblies disclosed herein;
FIG. 4 is a schematic perspective view of a main body according to the present disclosure;
FIG. 5 is a schematic front view of the main body of the present disclosure;
fig. 6 is a schematic top view of the main body according to the present disclosure.
Reference numerals are as follows:
1. a main body; 11. a first body; 12. a second body; 120. a guide hole; 121. a first cylindrical bore; 122. a second cylindrical bore; 2. a nut; 3. flattening the cushion; 5. a guide pin; 41. a first cylindrical pin; 51. and a second cylindrical pin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not to be construed as limiting the utility model.
The utility model aims to provide a drilling machine expanding clamp which is simple in structure, low in cost and capable of expanding the clamping range of a drilling machine. The following will describe in detail a drill press expansion jig provided by the present invention by way of specific embodiments.
Fig. 1 is a schematic perspective view showing a drill press extension jig, fig. 2 is a schematic front view showing the drill press extension jig, and as shown in fig. 1 and 2, the drill press extension jig according to the present invention includes: a body 1 and a flat pad 3.
The body 1 comprises a first body 11 and a second body 12 which are coaxial. The first body 1 is a circular shaft, and is provided with an external thread. The top of the first body 11 is fixedly connected with a drill chuck of a drilling machine, and the bottom of the first body 11 is connected with the second body 12.
The whole flat pad 3 is a flat ring structure, and a round hole is formed in the flat pad for the main body 1 to pass through. The flat pad 3 moves in the axial direction of the first body 11. Further, the flat gasket 3 is provided with an internal thread, and the first body 11 is provided with an external thread matched with the internal thread. In this way, the axial position of the flat gasket 3 relative to the first body 11 can be changed by continuously screwing or unscrewing the flat gasket 3 in the opposite direction. The position of the flat pad 3 can be changed by using the nut 2 described later.
The second body 12 is a circular shaft of larger diameter than the first body 11 and on which the first jaw assembly and/or the second jaw assembly is arranged.
In a preferred embodiment of the utility model, only the first jaw assembly is provided on the second body 12. The first jaw assembly comprises a plurality of first cylindrical pins 41 arranged around the circumference of the second body 12, the first cylindrical pins 41 being disposed obliquely to the axis of the second body 12. The horizontal distance from the top of the first cylindrical pin 41 to the axis of the second body 12 is greater than the horizontal distance from the bottom of the first cylindrical pin 41 to the axis of the second body 12, that is, the first cylindrical pin 41 gradually approaches toward the radially inner portion of the second body 12 along the direction from the top to the bottom of the second body 12. The top of the first cylindrical pin 41 contacts the bottom surface of the flat pad 3, the first cylindrical pin 41 penetrates through the first cylindrical hole 121 formed in the second body 12, and the bottom of the first cylindrical pin 41 contacts the outside of the first workpiece to be measured. The first cylindrical hole 121 is a through hole opened obliquely, and the first cylindrical pin 41 can slide along the first cylindrical hole 121.
The flat pad 3 moves in a direction to approach the first workpiece, and drives the bottom portions of the plurality of first cylindrical pins 41 downward, i.e., to approach the first workpiece, so that the radial distance between the bottom portions of the plurality of first cylindrical pins 41 becomes smaller, thereby enabling clamping of the first workpiece. The first workpiece is a shaft part, the plurality of first cylindrical pins 41 are arranged around the circumference of the second body 12, and when the first workpiece and the second body 12 are coaxially arranged in use, the plurality of first cylindrical pins 41 can clamp the outer surface of the first workpiece. It is easily conceivable that the diameter of the first workpiece is smaller than that of the second body 12.
In a preferred embodiment of the utility model, only the second jaw assembly is provided on the second body 12. Fig. 3 shows the structure of the second jaw assembly, and as shown in fig. 3, the second jaw assembly comprises a plurality of second cylindrical pins 51 arranged around the circumference of the second body 12, the second cylindrical pins 51 are obliquely arranged relative to the axis of the second body 12, and the horizontal distance from the top of the second cylindrical pins 51 to the axis of the second body 12 is smaller than the horizontal distance from the bottom of the second cylindrical pins 51 to the axis of the second body 12. That is, the first cylindrical pin 41 gradually expands toward the radially outer portion of the second body 12 along the direction from the top to the bottom of the second body 12. The top of the second cylindrical pin 51 contacts the bottom surface of the flat pad 3, the second cylindrical pin 51 penetrates a second cylindrical hole 122 obliquely arranged on the second main body 12, and the bottom of the second cylindrical pin 51 is arranged in a second workpiece to be tested provided with a round hole and contacts with the inner wall surface of the round hole.
The flat pad 3 moves towards the direction close to the second workpiece, and the bottoms of the second cylindrical pins 51 are driven to move downwards, namely, close to the first workpiece, so that the radial distance between the bottoms of the second cylindrical pins 51 is increased until the inner wall surface of the round hole is abutted, and the second workpiece is clamped. The second workpiece is a shaft-like part with a round hole at one end, the plurality of second cylindrical pins 51 are arranged around the circumference of the second main body 12, and when the second workpiece is used, the second workpiece and the second main body 12 are coaxially arranged, and the plurality of second cylindrical pins 51 can be expanded to clamp the second workpiece. It is easily conceivable that the outer diameter of the second workpiece is larger than that of the second body 12.
Preferably, the first cylindrical pin 41 or the second cylindrical pin 51. Since three points support the first or second workpiece more stably.
It is easy to think that a plurality of first cylindrical pins 41 or second cylindrical pins 51 are evenly distributed in the circumferential direction of the second body 12. Therefore, the supporting points of the first workpiece or the second workpiece supported by the clamp are uniformly distributed, and the first workpiece or the second workpiece is stably positioned by the clamp.
In a preferred embodiment of the present invention, a hollow cylindrical nut 2 is threadedly fitted on the first body 11; the flat gasket 3 is sandwiched between the first cylindrical pin 41 and the nut 2 or between the second cylindrical pin 51 and the nut 2. The nut 2 is further used because the nut 2 is generally thicker and provides more internal threads to facilitate stable movement of the nut 2 and the first body 11. The nut 2 can be directly purchased in the field of screws and can be matched with the nuts for use.
In a preferred embodiment of the present invention, as shown in fig. 2, the expanding fixture further comprises a guide pin 5, which is used for positioning and guiding the first cylindrical pin 41 and the second cylindrical pin 51, and ensuring that the movement is smoother under the driving of the flat pad 3. As shown in fig. 2, a guide pin 5 is fixedly inserted through each first cylindrical pin 41 and each second cylindrical pin 51, and one end of the guide pin 5 extends into the guide hole 120. A plurality of guide holes 120 are formed in the outer surface of the second body 12, the guide holes 120 extend along the radial direction of the second body 12, and the first cylindrical hole 121 or the second cylindrical hole 122 is communicated with the outer surface of the second body 12, so that the guide pin 5 can conveniently extend into the guide holes. The guide hole 120 is arranged in a length direction of the body 1. The guide nail 5 is preferably a screw common in the mechanical field, and a threaded through hole is formed in the surface of each first cylindrical pin 41 and each second cylindrical pin 51, and the axis of the through hole is preferably perpendicular to the axis of any one cylindrical pin, so that the guide nail is convenient to machine and position. The screwing length of the screw thread at one end of the guide nail 5 is adjusted, the other end of the guide nail 5 extends into the guide hole 120 to form a function similar to a sliding block, and the guide hole 120 forms a function of a guide rail. The guide pin 5 and the guide hole 120 are used together to guide the first cylindrical pin 41 or the second cylindrical pin 51 and prevent it from coming out between the flat pad 3 and the workpiece to be measured.
In a preferred embodiment of the present invention, both the second jaw assembly and the first jaw assembly are disposed on the second body 12. Fig. 4 shows a perspective structure of the main body, fig. 5 shows a planar structure of the main body, and fig. 6 shows a top-view structure of the main body. As shown in fig. 3-6, a first cylindrical bore 121 and a second cylindrical bore 122. When the second body 12 is provided with the first jaw assembly and the second jaw assembly, the number of the first cylindrical pins 41 and the number of the second cylindrical pins 51 are equal, and one first cylindrical pin 41 is arranged between two adjacent second cylindrical pins 51, that is, the first cylindrical pin 41 and the second cylindrical pin 51 are arranged around the circumference of the second body 12 in a crossed manner, so that the structural symmetry of the second body 12 can be ensured, the stress is balanced, and the second body is not easily damaged due to the fact that a plurality of cylindrical holes are formed. More specifically, as shown in fig. 6, the number of the first cylindrical pins 41 is three, the number of the second cylindrical pins 51 is three, and six holes are uniformly distributed on the entire second body 12. When being provided with first jack catch subassembly and second jack catch subassembly on second main part 12, the extension anchor clamps can have two kinds of functions, can press from both sides tightly the external diameter of first work piece, can expand the clamp tightly to the internal diameter of second work piece again. The dual-purpose device is dual-purpose, and the cost is reduced. In addition, the diameter of the first workpiece is smaller than that of the second main body 12, the outer diameter of the second workpiece is larger than that of the second main body 12, and whether the workpiece to be measured is suitable for clamping and fixing by the expanding clamp can be rapidly judged by comparing the size of the workpiece to be measured with the size of the second main body 12. When different sets of drilling machine expansion clamps are designed, and the diameter of each set of second main body 12 is different, a set of drilling machine expansion clamp with a proper size can be rapidly selected to clamp a workpiece.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The above embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. A drill press extension fixture, comprising: a main body (1) and a flat pad (3);
the body (1) comprises a first body (11) and a second body (12) which are coaxial;
the top of the first body (11) is connected with a drill chuck of a drilling machine, and the bottom of the first body (11) is connected with the second body (12);
the flat pad (3) is sleeved outside the first main body (11) and moves along the axial direction of the first main body (11);
the second body (12) is provided with a first jaw assembly and/or a second jaw assembly;
the first jaw assembly includes: a plurality of first cylindrical pins (41) arranged around the circumference of the second body (12), wherein the axes of the first cylindrical pins (41) are obliquely arranged relative to the axis of the second body (12), and the horizontal distance from the top of each first cylindrical pin (41) to the axis of the second body (12) is larger than the horizontal distance from the bottom of each first cylindrical pin (41) to the axis of the second body (12);
the top of the first cylindrical pin (41) is in contact with the bottom surface of the flat pad (3), the first cylindrical pin (41) penetrates through the second main body (12), and the bottom of the first cylindrical pin (41) is in contact with the outside of a first workpiece to be measured;
the flat pad (3) moves towards the direction close to the first workpiece, and the first workpieces are clamped by driving a plurality of first cylindrical pins (41) to move along the axial direction of the first cylindrical pins (41);
the second jaw assembly comprises: a plurality of second cylindrical pins (51) arranged around the circumference of the second body (12), wherein the axes of the second cylindrical pins (51) are obliquely arranged relative to the axis of the second body (12), and the horizontal distance from the top of each second cylindrical pin (51) to the axis of the second body (12) is smaller than the horizontal distance from the bottom of each second cylindrical pin (51) to the axis of the second body (12);
the top of the second cylindrical pin (51) is in contact with the bottom surface of the flat pad (3), the second cylindrical pin (51) penetrates through the second main body (12), and the bottom of the second cylindrical pin (51) is placed in a second workpiece to be tested, provided with a round hole, and is in contact with the inner wall surface of the round hole;
the flat pad (3) moves towards the direction close to the second workpiece, and drives the second cylindrical pins (51) to move along the axial direction of the second cylindrical pins (51) so as to clamp the second workpiece.
2. A drill press extension clamp according to claim 1, wherein the flat pad (3) is provided with an internal thread and the first body (11) is provided with an external thread matching the internal thread.
3. The drill press extension clamp of claim 1, further comprising a nut (2), wherein the nut (2) is threaded on the first body (11);
the flat gasket (3) is clamped between the first cylindrical pin (41) and the nut (2) or between the second cylindrical pin (51) and the nut (2).
4. The extension fixture for the drilling machine as claimed in claim 1, further comprising a guide nail (5), wherein a plurality of guide holes (120) are formed on the outer surface of the second main body (12);
each first cylindrical pin (41) and each second cylindrical pin (51) are provided with one guide nail (5) in a penetrating way;
the guide pin (5) connected with the first cylindrical pin (41) is in sliding connection along the axial direction of the first cylindrical pin (41);
the guide pin (5) connected with the second cylindrical pin (51) is connected with the second cylindrical pin (51) in a sliding mode along the axial direction of the second cylindrical pin (51).
5. The drill press extension clamp of claim 1, wherein a plurality of the first cylindrical pins (41) or a plurality of the second cylindrical pins (51) are evenly distributed in a circumferential direction of the second body (12).
6. The drill press extension jig of claim 1 wherein the number of first cylindrical pins (41) is three and the number of second cylindrical pins (51) is three.
7. The drill press extension clamp of claim 1, wherein the second body (12) is provided with a first jaw assembly and a second jaw assembly, the number of the first cylindrical pins (41) and the second cylindrical pins (51) is equal, and one first cylindrical pin (41) is arranged between two adjacent second cylindrical pins (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121446303.8U CN216939472U (en) | 2021-06-28 | 2021-06-28 | Drilling machine expanding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121446303.8U CN216939472U (en) | 2021-06-28 | 2021-06-28 | Drilling machine expanding clamp |
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| Publication Number | Publication Date |
|---|---|
| CN216939472U true CN216939472U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121446303.8U Active CN216939472U (en) | 2021-06-28 | 2021-06-28 | Drilling machine expanding clamp |
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| Country | Link |
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| CN (1) | CN216939472U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290407A (en) * | 2021-06-28 | 2021-08-24 | 长春奥普光电技术股份有限公司 | Drilling machine expanding clamp |
-
2021
- 2021-06-28 CN CN202121446303.8U patent/CN216939472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290407A (en) * | 2021-06-28 | 2021-08-24 | 长春奥普光电技术股份有限公司 | Drilling machine expanding clamp |
| CN113290407B (en) * | 2021-06-28 | 2024-11-26 | 长春奥普光电技术股份有限公司 | Drilling machine expansion fixture |
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