Simple tool clamp for grinding aerospace reinforced fastener

Abstract

The utility model relates to the technical field of machining of mechanical parts, in particular to a simple work fixture for grinding an aerospace reinforced fastener, which comprises a left center seat with a left center shaft, a right center seat with a right center shaft, a reinforced fastener, a flat block and a guide rod, the end face of the first lengthened shaft and the end face of the second lengthened shaft are correspondingly provided with a first center hole correspondingly matched with the left center shaft and a second center hole correspondingly matched with the right center shaft, the flat block is in threaded connection with a threaded rod of the reinforcing fastener, and the guide rod and the reinforcing fastener are distributed in parallel. One end of the guide rod is connected to the left center seat, and the other end of the guide rod is connected to the flat block. The reinforced fastener is stressed to rotate and operate through transmission of the guide rod, center holes in the left end and the right end are matched with the left center shaft and the right center shaft, standard unification of polish rods is guaranteed, product precision size efficient machining is achieved, and abrasion of a cutter is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical parts processing, in particular to a simple tooling fixture for grinding aerospace reinforcement fasteners. Background Art

[0002] Strengthening fasteners used in aerospace such as Figure 1 As shown, it is composed of a polished rod 11, a groove 12, and a threaded rod 13. In the traditional processing process, the size of the polished rod 11 on such shaft parts is usually μ-level precision, and is generally processed by a high-end lathe. For ultra-high-strength steel or high-strength steel after heat treatment, the processing tool will be severely worn, and the product will be seriously scrapped, and the mass production of such products cannot be realized. Therefore, it is necessary to find a new simple fixture to ensure the product qualification rate through a CNC grinder. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes a simple tooling fixture for grinding aerospace reinforcement fasteners.

[0004] The technical problem to be solved by the utility model is achieved by the following technical solutions:

[0005] A simple tooling fixture for grinding aerospace reinforced fasteners includes a left center seat with a left center shaft, a right center seat with a right center shaft, and also includes a reinforced fastener with a first extension shaft and a second extension shaft correspondingly arranged at both ends, a flat block, and a guide rod. The end surfaces of the first extension shaft and the second extension shaft are correspondingly provided with a first center hole corresponding to the left center shaft and a second center hole corresponding to the right center shaft. The flat block is threadedly connected to the threaded rod of the reinforced fastener, and the guide rod is distributed in parallel with the reinforced fastener, with one end of the guide rod connected to the left center seat and the other end connected to the flat block.

[0006] As a further improvement of the utility model, a fixed seat and a rotating seat are arranged on the left top seat, and the left top shaft is arranged on the fixed seat.

[0007] As a further improvement of the utility model, a first through hole connected to one end of the guide rod is provided on the rotating seat.

[0008] As a further improvement of the utility model, the flat block is made of hard aluminum alloy.

[0009] As a further improvement of the utility model, the flat block is provided with a first threaded through hole threadably matched with the threaded rod on the reinforcing fastener and a second through hole connected with the guide rod.

[0010] As a further improvement of the utility model, the flat block is also provided with a second threaded through hole which is perpendicularly distributed and connected to the axial direction of the first threaded through hole, and a third threaded through hole which is perpendicularly distributed and connected to the axial direction of the second through hole.

[0011] As a further improvement of the utility model, the guide rod is made of hard alloy material.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a simple tooling fixture for grinding aerospace reinforcement fasteners. The reinforcement fasteners are rotated under force through guide rod transmission. The center holes at the left and right ends cooperate with the left and right center shafts to ensure the uniformity of the polished rod benchmark, the product precision size is efficiently processed, and the wear of the tool is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a structural schematic diagram of an existing reinforcing fastener;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the left side structure of the reinforcing fastener in the utility model;

[0018] Figure 4 It is a schematic diagram of the right side structure of the reinforcing fastener in the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the left top seat in the utility model;

[0020] Figure 6 It is a schematic diagram of the structure of the right top seat in the utility model;

[0021] Figure 7 It is a schematic diagram of the flat block structure in the utility model;

[0022] Figure 8 It is a schematic diagram of the guide rod structure in the utility model.

[0023] In the figure: 1. reinforcing fastener; 11. bare rod; 12. groove; 13. threaded rod; 14. first extended shaft; 141. first center hole; 15. second extended shaft; 151. second center hole; 2. left top seat; 21. fixed seat; 22. rotating seat; 23. left top shaft; 24. first through hole; 3. right top seat; 31. right top shaft; 4. flat block; 41. first threaded through hole; 42. second through hole; 43. second threaded through hole; 44. third threaded through hole; 5. guide rod. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figures 2 to 8 As shown, a simple tooling fixture for grinding aerospace reinforcement fasteners includes a reinforcement fastener 1, a left top seat 2, a right top seat 3, a flat block 4, and a guide rod 5.

[0026] The structure of the existing reinforcing fastener 1 is as follows Figure 1 As shown, it is composed of a polished rod 11, a groove 12 and a threaded rod 13, wherein the polished rod 11 is a key feature, and the radial dimension and surface finish are required to be extremely high, usually at μ level precision.

[0027] The reinforcing fastener 1 in the present fixture is designed in appearance according to the appearance structure and movement principle of the left center seat 2 and the right center seat 3 of the CNC grinder, and the appearance structure of the reinforcing fastener 1 is redesigned on the original basis. Specifically, a first extension shaft 14 and a second extension shaft 15 are respectively provided at the left and right ends of the reinforcing fastener 1, and further, the end surfaces of the first extension shaft 14 and the second extension shaft 15 are correspondingly provided with a first center hole 141 and a second center hole 151.

[0028] The left top seat 2 is composed of a fixed seat 21, a rotating seat 22, and a left top shaft 23. The left top shaft 23 is arranged at the center of the fixed seat 21, and a first through hole 24 is arranged on the working surface of the rotating seat 22.

[0029] A right top shaft 31 is arranged at the center of the right top seat 3 .

[0030] According to the external structure of the left top shaft 23 and the right top shaft 31, and the first extension shaft 14 and the second extension shaft 15 provided at the left and right ends of the reinforcing fastener 1, the two can be matched to achieve rapid unification of the reference.

[0031] The flat block 4 in the fixture is designed according to the outer structure of the threaded rod 13 of the reinforcing fastener 1, and is made of aluminum alloy material as a whole, which is light and easy to process, thereby ensuring the lightness of the transmission. The flat block 4 is provided with a first threaded through hole 41, a second through hole 42, a second threaded through hole 43, and a third threaded through hole 44.

[0032] The first threaded through hole 41 is arranged at the center of the flat block 4 for cooperating with the threaded rod 13. The second threaded through hole 43 is perpendicularly distributed and connected to the axial direction of the first threaded through hole 41. After the first threaded through hole 41 cooperates with the threaded rod 13, the corresponding screw is screwed into the second threaded through hole 43 to fix the flat block 4 and the threaded rod 13.

[0033] The diameter of the guide rod 5 is adapted to the sizes of the first through hole 24 and the second through hole 42. The guide rod 5 is made of hard alloy material to ensure the wear resistance of the transmission; one end of the guide rod 5 is connected to the first through hole 24, and the other end is connected to the second through hole 42. The third threaded through hole 44 is perpendicularly distributed and connected to the axis direction of the second through hole 42. After the other end of the guide rod 5 is matched with the second through hole 42, the corresponding screw is screwed into the third threaded through hole 44 to fix the two.

[0034] The working principle and use process of this utility model:

[0035] First, install the flat block 4 onto the threaded rod 13, and screw it into the second threaded through hole 43 with the corresponding screw to fix the flat block 4 and the threaded rod 13. Next, after matching the other end of the guide rod 5 with the second through hole 42, screw it into the third threaded through hole 44 with the corresponding screw to fix the two. Then, insert one end of the guide rod 5 into the first through hole 24. At the same time, the left top shaft 23 on the left top seat 2 and the right top shaft 31 on the right top seat 3 correspond to the first center hole 141 and the second center hole 151 on the end faces of the first extension shaft 14 and the second extension shaft 15 in the reinforcing fastener 1 to complete the clamping.

[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A simple fixture for grinding aerospace reinforcement fasteners, comprising a left center seat (2) with a left center spindle (23), and a right center seat (3) with a right center spindle (31), characterized in that: The invention also comprises a reinforcing fastener (1) with a first extension shaft (14) and a second extension shaft (15) at two ends thereof, a flat block (4), and a guide rod (5); the end surfaces of the first extension shaft (14) and the second extension shaft (15) are respectively provided with a first center hole (141) corresponding to the left top shaft (23) and a second center hole (151) corresponding to the right top shaft (31); the flat block (4) is threadedly connected to the threaded rod (13) of the reinforcing fastener (1); the guide rod (5) and the reinforcing fastener (1) are arranged in parallel; one end of the guide rod (5) is connected to the left top seat (2) and the other end is connected to the flat block (4).

2. A simple fixture for grinding aerospace reinforcement fasteners according to claim 1, characterized in that: A fixed seat (21) and a rotating seat (22) are arranged on the left top seat (2), and a left top shaft (23) is arranged on the fixed seat (21).

3. A simple fixture for grinding aerospace reinforcement fasteners according to claim 2, characterized in that: The rotating seat (22) is provided with a first through hole (24) connected to one end of the guide rod (5).

4. A simple fixture for grinding aerospace reinforcement fasteners according to claim 1, characterized in that: The flat block (4) is made of hard aluminum alloy.

5. The simple fixture for grinding aerospace reinforcement fasteners according to claim 1, characterized in that: The flat block (4) is provided with a first threaded through hole (41) threadably matched with the threaded rod (13) on the reinforcing fastener (1) and a second through hole (42) connected to the guide rod (5).

6. A simple fixture for grinding aerospace reinforcement fasteners according to claim 5, characterized in that: The flat block (4) is also provided with a second threaded through hole (43) which is perpendicularly distributed to and communicates with the axial direction of the first threaded through hole (41), and a third threaded through hole (44) which is perpendicularly distributed to and communicates with the axial direction of the second through hole (42).

7. The simple fixture for grinding aerospace reinforcement fasteners according to claim 1, characterized in that: The guide rod (5) is made of hard alloy material.

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