Tool

Abstract

The utility model discloses a tool which comprises a fixing part, a positioning part and a clamping part, the fixing part is provided with a fixing hole penetrating through the fixing part, the inner circumferential wall of the fixing hole is provided with threads, and the threads are used for being matched with threads on the surface of a workpiece; and the transmission part is arranged on the fixing part, and the transmission part is used for being in transmission fit with machining equipment. Therefore, through the arrangement of the tool, the threads of the shaft workpieces with the outer surfaces provided with the thread structures can be protected against damage, the machining precision can be improved, the workpiece clamping time can be shortened, the tool structure has the advantages of being simple, easy to operate and low in cost, and therefore the yield of the workpieces and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, in particular to a tooling. Background Art

[0002] When processing shaft workpieces with high-precision requirements and threaded structures on both ends, clamping the workpiece used to rely on the workers' long-term experience, which easily leads to damage to the workpiece threads, reduced yields, and high labor costs; when using a grinder for processing, ordinary clamping methods will cause thread damage; or the current general fixture processing is through a fork, that is, a smooth sleeve and a top screw are used to fix the workpiece, and the grinder's headstock rotates to drive the workpiece to rotate, but for workpieces with threads on both ends, if a general fixture is used, the top screw of the fixture will damage the thread, which has a particularly large impact on high-precision workpieces and will make it impossible to process. Moreover, if the top screw is loose, the fixture and workpiece will be loosened directly, and the workpiece will slip and be damaged. In addition, the use of this fixture depends entirely on the workers' experience, and it is also extremely difficult for novices to operate. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a tooling that can protect the threads of a shaft workpiece with a threaded structure on the outer surface from damage, improve the processing accuracy, reduce the workpiece clamping time, and thus improve the workpiece yield and production efficiency.

[0004] The tooling according to the first aspect of the utility model comprises: a fixing part, the fixing part is provided with a fixing hole passing through the fixing part, the inner peripheral wall of the fixing hole is provided with a thread, and the thread is used to cooperate with the thread on the surface of the workpiece; a transmission part, the transmission part is provided on the fixing part, and the transmission part is used to cooperate with the processing equipment in transmission.

[0005] Therefore, by setting up this tooling, the threads of shaft workpieces with threaded structures on the outer surface can be protected from damage, the processing accuracy can be improved, and the time for clamping the workpiece can be reduced. Moreover, the tooling structure has the advantages of being simple, easy to operate and low in cost, thereby improving the workpiece yield and production efficiency.

[0006] In some examples of the present invention, the thread extends from one axial end of the fixing hole to the other axial end.

[0007] In some examples of the present invention, the fixing part includes: a first fixing part; a second fixing part, the second fixing part is connected to one side of the first fixing part, the fixing hole passes through the first fixing part and the second fixing part, a step is formed between the second fixing part and the first fixing part, and the transmission part is arranged on the second fixing part.

[0008] In some examples of the present invention, the first fixing portion and the second fixing portion are both configured as annular rings, and an outer diameter of the second fixing portion is greater than an outer diameter of the first fixing portion.

[0009] In some examples of the present invention, the transmission portion is disposed on an outer circumferential surface of the second fixing portion and extends radially along the second fixing portion.

[0010] In some examples of the present invention, the distances from the center of the connection between the second fixing portion and the transmission portion to the two axial ends of the second fixing portion are equal.

[0011] In some examples of the present invention, the dimension of the first fixing portion in the axial direction of the fixing hole is d1, the dimension of the second fixing portion in the axial direction of the fixing hole is d2, and d1 and d2 satisfy: d1≤d2.

[0012] In some examples of the present invention, the first fixing portion is provided with a guide portion at one axial end of the fixing hole, and the guide portion is used to guide a workpiece.

[0013] In some examples of the present invention, the transmission part is configured as a straight rod.

[0014] In some examples of the present invention, the tooling is an integrally formed metal part.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a top view of a tool according to an embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional view of a tool according to an embodiment of the utility model.

[0019] Reference numerals:

[0020] 100. Workwear;

[0021] 10. fixing portion; 11. fixing hole; 12. first fixing portion;

[0022] 13. Second fixing portion; 14. Step; 20. Transmission portion. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary.

[0024] Reference below Figure 1-Figure 2 The tooling 100 according to the embodiment of the utility model can protect the threads of a shaft workpiece having a threaded structure on the outer surface from damage, improve the processing accuracy, and reduce the workpiece clamping time, thereby improving the workpiece yield and production efficiency.

[0025] Combination Figure 1 and Figure 2 As shown, the tool 100 according to the first embodiment of the utility model includes a fixing part 10 and a transmission part 20. The fixing part 10 mainly serves to fix the workpiece. The transmission part 20 mainly serves to transmit the driving force on the power equipment (such as a grinder) to the fixing part 10, so that it is convenient for the processing equipment to process the workpiece. The workpiece can be a special workpiece of a round shaft with an external thread structure at one or both ends along the axial direction, but is not limited thereto.

[0026] Specifically, the fixing part 10 is provided with a fixing hole 11 passing therethrough, and the inner peripheral wall of the fixing hole 11 is provided with threads for matching with threads on the surface of the workpiece. The transmission part 20 is provided on the fixing part 10 for matching with the processing equipment in transmission.

[0027] In detail, the fixing part 10 is provided with a fixing hole 11 that penetrates through the fixing part 10, and the inner peripheral wall of the fixing hole 11 is provided with a thread that matches the thread on the surface of the workpiece. Compared with the general tooling 100 (the top screw of the general tooling 100 will damage the thread on the outer surface of the workpiece when clamping the workpiece), the tooling 100 and the workpiece can be stably and non-damaged fixedly connected, thereby improving the processing accuracy of the workpiece during the processing, reducing the time spent on clamping the workpiece due to the thread on the surface of the workpiece, and thus improving the workpiece yield and production efficiency during clamping. Among them, the tooling 100 can protect the integrity of shaft workpieces with threaded structures at both ends during the processing, and when using the tooling 100 to fix and clamp the workpiece, the operation is simple, convenient and fast, which can save labor costs.

[0028] In addition, the thread can better withstand the load force from the axial direction, and the thread fit has self-locking properties, which can avoid the risk of the workpiece retreating during the processing feed. In addition, the threaded connection has the advantages of uniform load distribution, good anti-loosening and high reliability. For example, the threaded connection can evenly distribute the load on the connection surface through the self-locking characteristics of the thread pair, reduce the stress concentration on the connection surface, and thus improve the connection strength and rigidity between the workpiece and the tooling 100; the threaded connection can effectively prevent the connection from loosening through the bite of the thread, thereby improving the connection reliability and safety between the workpiece and the tooling 100; it can also withstand greater forces and torques, thereby improving the fastening reliability.

[0029] Therefore, by setting up the tool 100, the threads of shaft workpieces with threaded structures on the outer surface can be protected from damage, the processing accuracy can be improved, and the time for clamping the workpiece can be reduced. In addition, the structure of the tool 100 has the advantages of being simple, easy to operate and low in cost, thereby improving the workpiece yield and production efficiency.

[0030] According to some optional embodiments of the present invention, combined with Figure 1 and Figure 2 As shown, the thread extends from one axial end of the fixing hole 11 to the other axial end. In detail, the thread of the inner peripheral wall of the fixing hole 11 passes through both ends of the fixing portion 10 along its own axial direction, so as to expand the thread matching range between the workpiece and the tooling 100, thereby improving the practicality and versatility of the tooling 100. For example, in the axial direction, when the length of the thread on the outer surface of the workpiece is large, the workpiece can pass through the fixing hole 11 covered with threads, thereby increasing the thread matching range between the workpiece and the tooling 100, thereby improving the fastening ability of the tooling 100 to the workpiece.

[0031] Specifically, combined Figure 1 and Figure 2 As shown, the fixing part 10 includes a first fixing part 12 and a second fixing part 13, the second fixing part 13 is connected to one side of the first fixing part 12, the fixing hole 11 passes through the first fixing part 12 and the second fixing part 13, a step 14 is formed between the second fixing part 13 and the first fixing part 12, and the transmission part 20 is arranged on the second fixing part 13.

[0032] Among them, in the axial direction along the fixing hole 11, the first fixing part 12 and the second fixing part 13 are connected end to end, the fixing hole 11 passes through the first fixing part 12 and the second fixing part 13, a step 14 is formed between the second fixing part 13 and the first fixing part 12, and the transmission part 20 is arranged on the second fixing part 13, so that it is convenient to grasp and carry the tooling 100, and it is also possible to form a structural division for the fixing part 10, thereby improving the rationality of the spatial layout of the tooling 100.

[0033] Furthermore, combined with Figure 1 and Figure 2 As shown, the first fixing portion 12 and the second fixing portion 13 are both constructed in an annular shape, and the outer diameter of the second fixing portion 13 is greater than the outer diameter of the first fixing portion 12. The first fixing portion 12 and the second fixing portion 13 are concentric annular rings, the inner diameters of the annular ring of the first fixing portion 12 and the second fixing portion 13 are equal, and the outer diameter of the second fixing portion 13 is greater than the outer diameter of the first fixing portion 12. In this way, the fixing portion 10 can reduce the material consumption and the weight of the tooling 100 on the basis of meeting the structural strength required for fastening the workpiece, thereby improving the scientificity and economy of the tooling 100.

[0034] Specifically, combined Figure 1 and Figure 2 As shown, the transmission part 20 is arranged on the outer peripheral surface of the second fixing part 13, and the transmission part 20 is extended in the radial direction of the second fixing part 13. The transmission part 20 is connected to the outer peripheral edge of the second fixing part 13, and the transmission part 20 extends in the radial direction of the second fixing part 13 toward the side away from the second fixing part 13, so that the transmission part 20 can establish a connection relationship between the driving rod on the processing equipment far away from the tooling 100 and the fixing part 10, so that the processing equipment can transmit the driving force to the workpiece fixed by the tooling 100, thereby completing the driving processing of the workpiece.

[0035] Furthermore, combined with Figure 1 and Figure 2 As shown, the distances from the center of the connection between the second fixing part 13 and the transmission part 20 to the two axial ends of the second fixing part 13 are equal. In this way, it is possible to avoid the connection between the transmission part 20 and the second fixing part 13 being located in a weak force area deviating from the center position of the second fixing part 13 in the axial direction, thereby improving the rationality of the arrangement of the transmission part 20 and the structural reliability of the tooling 100.

[0036] Specifically, combined Figure 1 and Figure 2 As shown, the size of the first fixing part 12 in the axial direction of the fixing hole 11 is d1, and the size of the second fixing part 13 in the axial direction of the fixing hole 11 is d2, and d1 and d2 satisfy: d1≤d2. Among them, in the axial direction along the fixing hole 11, the size of the first fixing part 12 does not exceed the size of the second fixing part 13. Since a step 14 is formed between the first fixing part 12 and the second fixing part 13, and the transmission part 20 is arranged on the second fixing part 13, the size of the second fixing part 13 in the axial direction along the fixing hole 11 is larger, so that the transmission part 20 can be given a more stable and reliable structural support, thereby improving the design rationality and scientificity of the second fixing part 13; the size of the first fixing part 12 is smaller, so that unnecessary material consumption can be reduced, thereby improving the economy and practicality of the tooling 100.

[0037] Furthermore, combined with Figure 1 and Figure 2As shown, the first fixing portion 12 is provided with a guide portion at one axial end of the fixing hole 11, and the guide portion is used to guide the workpiece. The first fixing portion 12 pre-contacts one end of the workpiece when it is about to enter the fixing hole 11, and the first fixing portion 12 is provided with a guide portion at one end along the axial direction of the fixing hole 11 and toward the workpiece to be assembled into the fixing hole 11, so that the guide portion can be pre-guided to find a position to enter the fixing hole 11, so that the workpiece can be fixed and clamped in the fixing hole 11 of the tooling 100 more smoothly, thereby improving the clamping efficiency of the workpiece. For example, the guide portion can be a guide groove, and the guide groove is configured to be conical (that is, the diameter size gradually decreases) in the direction toward the fixing hole 11, so that the workpiece can be smoothly guided into the fixing hole 11.

[0038] According to some optional embodiments of the present invention, combined with Figure 1 and Figure 2 As shown, the transmission part 20 is constructed in a straight rod shape. Compared with a bent rod or a special-shaped rod, this allows the driving force transmitted by the toggle rod of the processing equipment to act on the fixing part 10 at the shortest distance, thereby avoiding ineffective transmission of the driving force, thereby improving the practicality and convenience of the tooling 100.

[0039] According to some optional embodiments of the utility model, the tooling 100 is an integrally formed metal part. Compared with the tooling 100 formed by separate assembly, the integrally formed process can avoid the problem of mutual shaking and insufficient structural strength between the individual components in the tooling 100, thereby improving the overall stability and structural reliability of the tooling 100. In addition, the tooling 100 is made of metal material. Compared with materials such as plastic or rubber, metal materials generally have better structural strength and bending and torsional rigidity, which can improve the structural reliability, durability and economy of the tooling 100. For example, the metal part can be cast iron, stainless steel, alloy, etc., but is not limited thereto.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tool (100), characterized in that: include: A fixing portion (10), the fixing portion (10) being provided with a fixing hole (11) penetrating therethrough, the inner peripheral wall of the fixing hole (11) being provided with a thread, the thread being used to cooperate with a thread on the surface of a workpiece; A transmission part (20), the transmission part (20) being arranged on the fixing part (10), and the transmission part (20) being used for transmission cooperation with processing equipment.

2. The tool (100) according to claim 1, characterized in that: The thread extends from one axial end of the fixing hole (11) to the other axial end.

3. The tool (100) according to claim 1, characterized in that: The fixing portion (10) comprises: A first fixing portion (12); a second fixing portion (13), the second fixing portion (13) being connected to one side of the first fixing portion (12), the fixing hole (11) penetrating the first fixing portion (12) and the second fixing portion (13), a step (14) being formed between the second fixing portion (13) and the first fixing portion (12), and the transmission portion (20) being arranged on the second fixing portion (13).

4. The tool (100) according to claim 3, characterized in that: The first fixing portion (12) and the second fixing portion (13) are both constructed in a circular ring shape, and the outer diameter of the second fixing portion (13) is greater than the outer diameter of the first fixing portion (12).

5. The tool (100) according to claim 4, characterized in that: The transmission portion (20) is arranged on the outer peripheral surface of the second fixing portion (13) and is extended along the radial direction of the second fixing portion (13).

6. The tool (100) according to claim 5, characterized in that: The distances from the center of the connection between the second fixing portion (13) and the transmission portion (20) to the two axial ends of the second fixing portion (13) are equal.

7. The tool (100) according to claim 3, characterized in that: The dimension of the first fixing portion (12) in the axial direction of the fixing hole (11) is d1, and the dimension of the second fixing portion (13) in the axial direction of the fixing hole (11) is d2, and d1 and d2 satisfy: d1≤d2.

8. The tool (100) according to claim 3, characterized in that: The first fixing portion (12) is provided with a guide portion at one axial end of the fixing hole (11), and the guide portion is used to guide a workpiece.

9. The tool (100) according to claim 1, characterized in that: The transmission part (20) is configured as a straight rod.

10. The tool (100) according to claim 1, characterized in that: The tooling (100) is an integrally formed metal part.

Images