Drilling, clamping and positioning tool for oil injection nozzle
By designing a uniquely shaped base and clamping part adapted to the oil injection nozzle structure, and combining the fixing structure of "X" and "K" shaped clamping blocks and baffles, the problem of stable clamping of the uniquely shaped oil injection nozzle structure was solved, and efficient processing of the oil injection hole was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN ZHITONG AVIATION TECH CO LTD
- Filing Date
- 2025-02-14
- Publication Date
- 2026-04-24
AI Technical Summary
The lack of effective clamping and positioning fixtures in the existing technology makes it difficult to stably clamp and position the irregular structure of the oil injection nozzle, which affects the processing efficiency of the oil injection hole.
A clamping and positioning fixture including an irregular base, a clamping part, a first clamping block and a second clamping block is designed. The clamping part is formed by milling into a "U" shape, and a support groove and a clamping groove adapted to the oil injection nozzle are set in the irregular base. Combined with the fixing structure of "X" and "K" shaped clamping blocks and baffles, the stable clamping of multiple oil injection nozzles can be achieved.
It achieves stable clamping and positioning of the oil injector, making it easier for operators to process the oil injection hole at the head of the oil injector, improving processing efficiency and avoiding scratching the surface of the oil injector during clamping.
Smart Images

Figure CN224158086U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical processing technology, and relates to clamping and positioning fixtures, and in particular to a clamping and positioning fixture for drilling oil nozzles. Background Technology
[0002] A certain type of grease nipple includes a spherical nipple head, a hexagonal nipple middle section, and a conical nipple tail. In actual use, an oil filling hole needs to be machined on the nipple head, but due to the irregular structure of the grease nipple, there is a lack of effective clamping and positioning fixtures for holding and positioning it.
[0003] In view of the above, this utility model is hereby proposed. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a clamping and positioning fixture for drilling oil nozzles.
[0005] This tooling for drilling, clamping, and positioning oil injectors includes: a shaped base, which has multiple clamping parts reserved inside for clamping multiple oil injectors, each clamping part corresponding to one oil injector; adjacent oil injectors are clamped and fixed together by a first clamping block, and the oil injectors located at both ends inside the shaped base are also clamped and fixed by a second clamping block; a baffle for fixing is provided on the outer side of the second clamping block, and the baffle is fixedly installed at both ends of the shaped base.
[0006] Specifically, the clamping part is a U-shaped clamping part formed by milling the irregular base; the U-shaped clamping part includes a first support groove adapted to the head of the oil nozzle, a second clamping groove adapted to the middle of the oil nozzle, and a third clamping groove adapted to the tail of the oil nozzle.
[0007] Specifically, the head of the oil injection nozzle is spherical, the middle part of the oil injection nozzle is a hexagonal bolt, and the tail of the oil injection nozzle is a truncated cone. The three parts are integrally formed to form the oil injection nozzle.
[0008] Furthermore, the first support groove is a spherical groove adapted to the head of the nozzle, the second clamping groove is a rectangular groove symmetrically arranged vertically to adapt to the middle of the nozzle, and the third clamping groove is a conical groove symmetrically arranged vertically to adapt to the tail of the nozzle. Correspondingly, the first clamping block is an "X"-shaped clamping block, and the second clamping block is a "K"-shaped clamping block.
[0009] Specifically, the baffle's orientation intersects with the orientation of the "U"-shaped clamping part, forming an "X"-shaped structure.
[0010] Furthermore, each end face of the irregularly shaped base has two threaded holes for mounting a baffle. One threaded hole is located on the end face near the first support groove, and the other threaded hole is located on the end face near the third clamping groove. The baffle is fixed by bolts. Preferably, a washer is also fitted on the bolt.
[0011] Preferably, the irregularly shaped base is made of aluminum, specifically an aluminum rod or aluminum block base.
[0012] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:
[0013] This positioning fixture, through its structural design of a clamping part, a first clamping block, a second clamping block, and a baffle, achieves the clamping and positioning of multiple oil injection nozzles, facilitating the operator in machining oil injection holes at the nozzle heads. Specifically,
[0014] A U-shaped clamping part is formed by milling the irregular base. A first support groove is opened in the U-shaped clamping part to adapt to the head of the oil injector, a second clamping groove to adapt to the middle of the oil injector, and a third clamping groove to adapt to the tail of the oil injector. The size of the clamping groove matches the outer size of the oil injector, thereby achieving initial clamping of the oil injector. Then, the first clamping block is used to clamp and fix adjacent oil injectors, and the second clamping block is used to clamp and fix the two ends of the irregular base to the oil injector. Finally, the stop block is used to clamp and fix all the clamping blocks (the first clamping block and the second clamping block) to the oil injector, which makes it convenient for the operator to process the oil injection hole at the head of the oil injector. Attached Figure Description
[0015] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the oil nozzle structure provided by this utility model;
[0018] Figure 2 Structural diagram of the oil nozzle drilling and clamping positioning fixture provided by this utility model;
[0019] Figure 3 A cross-sectional view of the irregularly shaped base provided for this utility model;
[0020] Figure 4A schematic diagram of the structure of the first clamping block provided by this utility model;
[0021] Figure 5 A schematic diagram of the structure of the second clamping block provided by this utility model.
[0022] Among them: 1. Irregular base; 2. First clamping block; 3. Oil injection nozzle; 31. Oil injection nozzle head; 32. Oil injection nozzle middle part; 33. Oil injection nozzle tail part; 4. Second clamping block; 5. Baffle; 6. Bolt; 7. Threaded hole; 8. U-shaped clamping part; 81. First support groove; 82. Second clamping groove; 83. Third clamping groove; A. Oil injection hole. Detailed Implementation
[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples consistent with some aspects of this invention as detailed in the appended claims.
[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0025] Example
[0026] like Figures 2-5 As shown, this embodiment provides a clamping and positioning fixture for drilling oil nozzles, including: a shaped base 1, wherein the shaped base 1 has multiple clamping parts reserved inside for clamping multiple oil nozzles 3, each clamping part corresponding to an oil nozzle 3; adjacent oil nozzles 3 are clamped and fixed together by a first clamping block 2, and the oil nozzles 3 located at both ends inside the shaped base 1 are also clamped and fixed by a second clamping block 4; a baffle 5 for fixing is provided on the outer side of the second clamping block 4, and the baffle 5 is fixedly installed at both ends of the shaped base 1.
[0027] Furthermore, the clamping part is a U-shaped clamping part 8 formed by milling the irregular base 1; the U-shaped clamping part 8 includes a first support groove 81 adapted to the head 31 of the oil nozzle, a second clamping groove 82 adapted to the middle part 32 of the oil nozzle, and a third clamping groove 83 adapted to the tail part 33 of the oil nozzle.
[0028] Specifically, see Figure 1 The oil nozzle head 31 is spherical, the oil nozzle middle part 32 is a hexagonal bolt, and the oil nozzle tail 33 is a truncated cone. The three parts are integrally formed to form the oil nozzle 3. The oil nozzle head 31 is machined with an oil injection hole A.
[0029] Corresponding to the external dimensions of the oil nozzle 3, the first support groove 81 is a spherical groove adapted to the head 31 of the oil nozzle; the second clamping groove 82 is a rectangular groove symmetrically arranged vertically and adapted to the middle 32 of the oil nozzle; and the third clamping groove 83 is a conical groove symmetrically arranged vertically and adapted to the tail 33 of the oil nozzle. Further, the first clamping block 2 is an "X"-shaped clamping block, see [reference needed]. Figure 4 This is used to clamp and fix adjacent oil nozzles 3; the second clamping block 4 is a "K" shaped clamping block, see [link / reference]. Figure 5 It is used to clamp and fix the oil nozzle 3 to both ends of the irregular base 1.
[0030] It should be noted that, in order to achieve the clamping and fixing of all clamping blocks (first clamping block 2 and second clamping block 4) with oil nozzle 3, the setting direction of the baffle 5 intersects with the setting direction of the "U"-shaped clamping part 8 to form an "X" shaped structure.
[0031] Furthermore, both ends of the irregularly shaped base 1 are provided with two threaded holes 7 for mounting the baffle 5. One threaded hole 7 is located on the end face near the first support groove 81, and the other threaded hole 7 is located on the end face near the third clamping groove 83. The baffle 5 is mounted and fixed by bolts 6. Preferably, a washer is also fitted on the bolt 6.
[0032] Preferably, the irregularly shaped base 1 is made of aluminum, specifically an aluminum rod or aluminum block substrate formed by milling, see [reference]. Figure 3 It should be noted that aluminum was chosen as the material for the irregularly shaped base 1 in this embodiment because: ① Aluminum is a relatively soft metal, and the irregularly shaped base 1 can be prepared by various processing methods such as milling, which facilitates processing and shaping; and during the subsequent drilling process, it can prevent the surface of the oil nozzle 3 from being scratched due to bumps during clamping; ② Aluminum is relatively inexpensive, has a certain cost advantage, and is highly recyclable.
[0033] The clamping and positioning fixture provided by this utility model is used for clamping such as Figure 1 The oil filling nozzle 3 shown is designed to facilitate drilling by the operator. In actual design, the number of oil filling nozzles 3 clamped together can be determined based on actual conditions (such as the size of the machine tool base, the number of parts to be processed, etc.) to determine the length of the machining fixture. The actual assembly process is as follows:
[0034] First, according to the length of the machining fixture, multiple oil injection nozzles 3 are respectively installed into multiple reserved clamping parts, and each clamping part is equipped with one oil injection nozzle 3;
[0035] Secondly, all adjacent oil nozzles 3 are clamped and fixed together by "X" type clamps, and the oil nozzles 3 at both ends of the irregular base 1 are clamped and fixed by "K" type clamps.
[0036] Then, the baffle 5 is fixedly installed at both ends of the irregular base 1 by bolts 6 and washers to achieve the clamping and fixing of the "X" type clamp, the "K" type clamp and the oil nozzle 3;
[0037] Finally, the assembled positioning fixture is installed and fixed to the machine tool base, and the oil injection hole is machined. It should be noted that the assembled positioning fixture is placed on the worktable of the machine tool base, with the rectangular base 1 in contact with the surface of the worktable. Since the worktable has grooves (straight or cross-shaped), the other four sides of the base 1 can be clamped and fixed to the grooves on the surface of the worktable using special clamping blocks. The special clamping blocks can be selected according to the groove structure of the actual machine tool worktable; details will not be elaborated here.
[0038] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.
[0039] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.
Claims
1. A clamping and positioning fixture for drilling oil nozzles, characterized in that, include: The irregular base (1) has multiple clamping parts reserved inside for clamping multiple oil nozzles (3), each clamping part corresponding to one oil nozzle (3); adjacent oil nozzles (3) are clamped and fixed by a first clamping block (2), and the oil nozzles (3) located at both ends inside the irregular base (1) are also clamped and fixed by a second clamping block (4); a baffle (5) for fixing is provided on the outside of the second clamping block (4), and the baffle (5) is fixedly installed at both ends of the irregular base (1).
2. The fixture for drilling and clamping oil nozzles according to claim 1, characterized in that, The clamping part is a U-shaped clamping part (8) formed by milling the irregular base (1); the U-shaped clamping part (8) includes a first support groove (81) adapted to the head (31) of the oil nozzle, a second clamping groove (82) adapted to the middle part (32) of the oil nozzle, and a third clamping groove (83) adapted to the tail (33) of the oil nozzle.
3. The fixture for clamping and positioning oil nozzle drilling according to claim 2, characterized in that, The head (31) of the oil injector is spherical, the middle part (32) of the oil injector is a hexagonal bolt, and the tail part (33) of the oil injector is a truncated cone. The three parts are integrally formed to form the oil injector (3).
4. The oil nozzle drilling and clamping positioning fixture according to claim 3, characterized in that, The first support groove (81) is a spherical groove that is adapted to the head (31) of the oil nozzle, the second clamping groove (82) is a rectangular groove that is symmetrically arranged vertically and adapted to the middle part (32) of the oil nozzle, and the third clamping groove (83) is a conical groove that is symmetrically arranged vertically and adapted to the tail part (33) of the oil nozzle.
5. The fixture for clamping and positioning oil nozzle drilling according to claim 4, characterized in that, The first clamping block (2) is an "X" shaped clamping block, and the second clamping block (4) is a "K" shaped clamping block.
6. The oil nozzle drilling and clamping positioning fixture according to claim 2, characterized in that, The baffle (5) is positioned in a direction that intersects with the U-shaped clamping part (8) to form an X-shaped structure.
7. The fixture for clamping and positioning oil nozzle drilling according to claim 6, characterized in that, The irregular base (1) has two threaded holes (7) on both ends for installing baffles (5). One threaded hole (7) is located on the end face near the first support groove (81), and the other threaded hole (7) is located on the end face near the third clamping groove (83). The baffles (5) are installed and fixed by bolts (6).
8. The fixture for clamping and positioning oil nozzle drilling according to claim 7, characterized in that, A washer is also fitted onto the bolt (6).
9. The fixture for drilling and clamping oil nozzles according to any one of claims 1 to 8, characterized in that, The irregularly shaped base (1) is made of aluminum.