CN220179141U - Polytetrafluoroethylene processing tool - Google Patents
Polytetrafluoroethylene processing tool Download PDFInfo
- Publication number
- CN220179141U CN220179141U CN202321746905.4U CN202321746905U CN220179141U CN 220179141 U CN220179141 U CN 220179141U CN 202321746905 U CN202321746905 U CN 202321746905U CN 220179141 U CN220179141 U CN 220179141U
- Authority
- CN
- China
- Prior art keywords
- half part
- polytetrafluoroethylene
- lower half
- positioning boss
- upper half
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- -1 Polytetrafluoroethylene Polymers 0.000 title claims abstract description 42
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 41
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 41
- 238000003754 machining Methods 0.000 claims description 21
- 230000013011 mating Effects 0.000 claims description 2
- 238000003801 milling Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
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- Jigs For Machine Tools (AREA)
Abstract
The utility model relates to the field of milling and discloses a polytetrafluoroethylene processing tool, which comprises an upper half part (2) and a lower half part (1), wherein a positioning boss is formed upwards on the lower half part (1), a clamping block for clamping a clamp is formed downwards, and an external thread is formed on the outer wall of the middle section; the upper half part (2) is sleeved on the positioning boss, an inner thread which can be matched with the outer thread is formed on the inner wall of the positioning boss, and a cavity for accommodating a workpiece (3) is formed between the upper half part (2) and the lower half part (1). The polytetrafluoroethylene processing tool is convenient and quick to use, flexible in structure and reliable in clamping, ensures the stability of polytetrafluoroethylene parts in processing, can control the precision and the size requirement, and greatly improves the clamping efficiency.
Description
Technical Field
The utility model relates to the field of milling, in particular to a polytetrafluoroethylene processing tool.
Background
Polytetrafluoroethylene materials have "cold flow properties" and are easily deformable. In milling, the traditional machining method uses a pressing plate or a three-jaw clamp, which is used for machining a large number of parts. However, since polytetrafluoroethylene materials are easily deformed, it is difficult to secure the machining accuracy and the dimensional requirements of parts by clamping with a pressing plate or a vice.
Therefore, it is highly desirable to provide a polytetrafluoroethylene tooling to solve the above technical problems.
Disclosure of Invention
The utility model aims to solve the problem that the clamping precision and the size requirement of a polytetrafluoroethylene material part are difficult to ensure by using a pressing plate or a vice in the prior art, and provides a polytetrafluoroethylene processing tool.
In order to achieve the above purpose, the utility model provides a polytetrafluoroethylene processing tool, which comprises an upper half part and a lower half part, wherein the lower half part is upwards provided with a positioning boss, a clamping block for clamping a clamp is downwards formed, and the outer wall of the middle section is provided with external threads; the upper half part is sleeved on the positioning boss, an inner thread which can be matched with the outer thread is formed on the inner wall of the positioning boss, and a cavity for accommodating a workpiece is formed between the upper half part and the lower half part.
Preferably, the internal structural shape of the cavity corresponds to the shape of the work piece.
Preferably, the positioning boss is provided as a circular boss capable of mating with the inner circle of the work piece.
Preferably, the upper half part is provided with a yielding notch for processing the part.
Preferably, the middle section of the lower half is cylindrical.
Preferably, the clamping blocks have at least one pair of symmetrical vertical sections formed thereon, the vertical sections cooperating with the clamping surfaces of the pliers.
Preferably, a plurality of limiting holes are formed between the bottom end surface of the clamping block and the bottom end of the external thread.
Preferably, the top edge of the positioning boss and/or the top edge of the middle section of the lower half part is formed with a rounded chamfer.
Through the technical scheme, a positioning boss is formed upwards on the lower half part, a clamping block for clamping by a clamp is formed downwards, and an external thread is formed on the outer wall of the middle section; the upper half part is designed to be sleeved on the positioning boss, and the inner wall of the upper half part is provided with an internal thread matched with the external thread, so that a cavity for accommodating a workpiece is formed between the upper half part and the lower half part. When the tool is used, the lower half part of the tool is clamped by the vice, a workpiece is placed in the positioning boss of the lower half part, and the workpiece can be tightly pressed by screwing the internal and external threads on the upper half part of the tool and the external threads of the lower half part, so that the workpiece can be prevented from being deformed easily by materials, and the condition that the clamping of the vice is difficult to ensure the machining precision and the size requirement of the part can be avoided.
Drawings
FIG. 1 is a perspective view of a polytetrafluoroethylene machining tool provided in accordance with the present utility model;
FIG. 2 is a top view of a polytetrafluoroethylene tooling provided in accordance with the present utility model;
fig. 3 is a front view of a polytetrafluoroethylene processing tool according to the present utility model;
FIG. 4 is a top view of the lower half of a polytetrafluoroethylene tooling according to the present utility model;
FIG. 5 is a front view of the lower part of the polytetrafluoroethylene tooling according to the present utility model;
FIG. 6 is a top view of the upper half of a polytetrafluoroethylene tooling according to the present utility model;
FIG. 7 is a cross-sectional view of the upper half of a polytetrafluoroethylene tooling according to the present utility model;
FIG. 8 is a top view of a work piece processed by the polytetrafluoroethylene processing tool according to the present utility model;
fig. 9 is a front view of a workpiece processed by the polytetrafluoroethylene processing tool according to the utility model.
Description of the reference numerals
1-lower half part
2-upper half part
3-workpiece
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
In the present utility model, unless otherwise indicated, the terms "upper, middle, lower, inner, outer, top, bottom" and the like are used to denote the orientation of the term in conventional use or are commonly understood by those skilled in the art, and should not be construed as limiting the term.
Referring to fig. 1 to 3, the utility model provides a polytetrafluoroethylene processing tool, which comprises an upper half part 2 and a lower half part 1, wherein a positioning boss is formed upwards on the lower half part 1, a clamping block for clamping by a clamp is formed downwards, and an external thread is formed on the outer wall of the middle section; the upper half part 2 is sleeved on the positioning boss, an inner thread which can be matched with the outer thread is formed on the inner wall, and a cavity for accommodating the workpiece 3 is formed between the upper half part 2 and the lower half part 1.
Thus, by forming a positioning boss upwards on the lower half part 1, forming a clamping block downwards for clamping by a clamp, and forming external threads on the outer wall of the middle section; the upper half part 2 is designed to be sleeved on the positioning boss, and an internal thread matched with the external thread is formed on the inner wall, so that a cavity for accommodating the workpiece 3 is formed between the upper half part 2 and the lower half part 1. When the tool is used, the lower half part 1 of the tool is clamped by a vice, a workpiece 3 is placed in a positioning boss of the lower half part 1, and the workpiece 3 can be tightly pressed by screwing the internal and external threads on the upper half part 2 of the tool and the external threads of the lower half part 1, so that the workpiece 3 can be prevented from being easily deformed due to materials, and the condition that the vice clamping is difficult to ensure the machining precision and the size requirement of the part can be avoided.
In this embodiment, in order to prevent the workpiece 3 from being crushed when the polytetrafluoroethylene machining tool compresses the workpiece 3, the workpiece 3 is prevented from being deformed due to inconsistent shapes of the machining tool and the workpiece 3, and preferably, the internal structure of the cavity is consistent with the shape of the workpiece 3.
When the polytetrafluoroethylene machining tool is used, when a workpiece 3 made of polytetrafluoroethylene is placed on the lower half part 1, the positioning boss is preferably arranged to be a circular boss matched with the inner circle of the workpiece 3 for preventing the subsequent machining procedures from being influenced by mounting dislocation or product distortion for convenient operation and accurate placement, and therefore the workpiece 3 made of polytetrafluoroethylene can be smoothly and accurately sleeved on the positioning boss.
Since there may be other parts on the polytetrafluoroethylene-made workpiece 3 that need not be machined to be relieved in this machining step, the machining operation of this step is avoided from affecting the rest of the assembled workpiece 3, and preferably, the upper half 2 is formed with a relief notch for the machined part.
When the upper half part 2 is sleeved on the lower half part 1 and is rotationally and threadedly mounted, in order to enable operation to be smoother, the single lower half part 1 is simpler in process during production and machining, a complicated machining structure is avoided, and preferably, the middle section of the lower half part 1 is cylindrical.
When the lower half part 1 is clamped from below by using the clamp, if the contact area between the clamping surface of the clamp and the clamping block is too small, the clamping state is easily damaged when the external force is too large or too strong in the processing process, so that the positioning is failed, even the polytetrafluoroethylene processing tool is changed to fall off, in order to avoid the situation, the stability of the clamp after clamping is improved, at least one pair of symmetrical vertical sections are preferably formed on the clamping block, and the vertical sections are matched with the clamping surface of the clamp. Therefore, the polytetrafluoroethylene processing tool can be stably fixed by using the pliers to simultaneously clamp and apply force from two symmetrical vertical sections.
In addition, when the upper half part 2 is sleeved on the lower half part 1 and rotated for screw thread installation, if an operator does not pay attention to the occurrence of misoperation, the upper half part 2 is easy to excessively screw, so that the polytetrafluoroethylene processing tool has excessive pressure on a polytetrafluoroethylene-made workpiece 3, and the appearance of the polytetrafluoroethylene-made workpiece 3 is influenced; or, the operator does not pay attention to the occurrence of misoperation, the rotation number of the upper half part 2 is insufficient, and the installation is not in place, so that a workpiece 3 made of polytetrafluoroethylene is not well positioned in the polytetrafluoroethylene processing tool, and great inconvenience is caused to subsequent processing operations. In order to solve the technical problem, a plurality of limiting holes are formed between the bottom end surface of the clamping block and the bottom end of the external thread. Thus, by inserting the stopper into the stopper hole, the stopper is utilized to block the upper half 2 from being excessively fitted onto the lower half 1 and to indicate the exact position where the upper half 2 should be rotatably mounted in place.
The polytetrafluoroethylene is softer, and if encountering hard corner in the installation and positioning process, the polytetrafluoroethylene is easy to scratch, so that the reject ratio of the product is increased. Therefore, in order to overcome this, it is preferable to form a rounded chamfer at the top edge of the positioning boss and/or the top edge of the middle section of the lower half 1. Therefore, even if the workpiece 3 of polytetrafluoroethylene collides or rubs with the top edge of the positioning boss or the top edge of the middle section of the lower half part 1 when the upper half part 2 is sleeved on the lower half part 1, the workpiece is not injured, the positioning accuracy and the manual operation speed are improved intangibly, the production and processing period is ensured, and the production efficiency is improved.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a number of simple variants of the technical solution of the utility model are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (8)
1. The polytetrafluoroethylene processing tool is characterized by comprising an upper half part (2) and a lower half part (1), wherein a positioning boss is formed upwards on the lower half part (1), a clamping block for clamping by a clamp is formed downwards, and an external thread is formed on the outer wall of the middle section; the upper half part (2) is sleeved on the positioning boss, an inner thread which can be matched with the outer thread is formed on the inner wall of the positioning boss, and a cavity for accommodating a workpiece (3) is formed between the upper half part (2) and the lower half part (1).
2. Polytetrafluoroethylene machining tool according to claim 1, characterized in that the internal structural shape of the cavity corresponds to the shape of the work piece (3).
3. Polytetrafluoroethylene machining tool according to claim 1, characterized in that the positioning boss is provided as a circular boss capable of mating with the inner circle of the work piece (3).
4. The polytetrafluoroethylene machining tool according to claim 1, wherein the upper half part (2) is formed with a relief notch for a machined part.
5. Polytetrafluoroethylene machining tool according to claim 1, characterized in that the middle section of the lower half part (1) is cylindrical.
6. The polytetrafluoroethylene machining tool according to claim 1 wherein the clamping blocks have at least one pair of symmetrical vertical sections formed thereon that mate with the clamping surfaces of the pliers.
7. The polytetrafluoroethylene machining tool according to claim 6, wherein a plurality of limiting holes are formed between a bottom end surface of the clamping block and a bottom end of the external thread.
8. Polytetrafluoroethylene machining tool according to any of claims 1-7, wherein the top edge of the positioning boss and/or the top edge of the middle section of the lower part (1) is formed with a rounded chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321746905.4U CN220179141U (en) | 2023-07-04 | 2023-07-04 | Polytetrafluoroethylene processing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321746905.4U CN220179141U (en) | 2023-07-04 | 2023-07-04 | Polytetrafluoroethylene processing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220179141U true CN220179141U (en) | 2023-12-15 |
Family
ID=89114020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321746905.4U Active CN220179141U (en) | 2023-07-04 | 2023-07-04 | Polytetrafluoroethylene processing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220179141U (en) |
-
2023
- 2023-07-04 CN CN202321746905.4U patent/CN220179141U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |