Machining equipment for combustion chamber lining
By designing a processing equipment for solid rocket combustion chamber bushings, and turning the inner wall of the bushing is achieved using CNC turntables and electro-hydraulic push rods, the problem of difficult to form the water drop-shaped cross-section of graphite bushings is solved, and processing efficiency and accuracy are improved.
Patent Information
- Application Number
- CN202421342000.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-13
AI Technical Summary
During solid rocket production, the drop-shaped cross-section of the graphite bushing is difficult to achieve efficient molding during the processing of annular components.
A processing equipment for combustion chamber bushings is designed, including a CNC turntable, an electro-hydraulic push rod and a cutting tool head. The CNC turntable drives the bushing rotation, and the electro-hydraulic push rod adjusts the position and height of the cutting tool head to realize turning processing of the inner wall of the bushing.
This device can facilitate the processing and forming of the inner wall of the combustion chamber liner, improving processing efficiency and accuracy.
Smart Images

Figure CN222830842U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bushing processing, and in particular relates to processing equipment for a combustion chamber bushing. Background Art
[0002] In the production process of solid rockets, graphite bushings are needed. The graphite bushings used on the inner wall of the combustion chamber shell have a teardrop-shaped cross-section. In the process of processing the annular components, machine tools and other processing equipment are needed. Based on this, the utility model provides a processing equipment for the combustion chamber liner. Utility Model Content
[0003] In order to solve the above problems existing in the prior art, the utility model provides a processing device for a combustion chamber liner, which has the characteristic of being easy to process and shape the inner wall of the combustion chamber liner.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a processing equipment for a combustion chamber liner, comprising a CNC turntable, a configuration table is arranged on the side of the CNC turntable, a support column is welded to one side of the top of the configuration table, an annular support groove is provided on the top of the outer wall of the support column, a rotating plate is movably installed inside the annular support groove, a support plate is welded to one end of the rotating plate, a guide groove is provided on one side of the bottom end of the support plate, two limit blocks are welded to the other side of the bottom end of the support plate, a No. 1 electric hydraulic push rod is installed inside the two limit blocks, an L-shaped slider is installed at the output end of the No. 1 electric hydraulic push rod, the L-shaped slider is located inside the guide groove, a No. 2 electric hydraulic push rod is installed through the middle of the top of the L-shaped slider, a fixed block is installed at the output end of the No. 2 electric hydraulic push rod, and a cutting tool head is installed at the bottom of one side of the fixed block.
[0005] As a preferred technical solution for a processing device for a combustion chamber liner of the utility model, T-shaped slots are equidistantly provided at the top of the CNC turntable, and an L-shaped baffle is installed at the top of the CNC turntable near the T-shaped slots.
[0006] As a preferred technical solution for a processing equipment for a combustion chamber liner of the utility model, a No. 1 clamping hole is opened on one side of the top end of the inner wall of the annular support groove, and a No. 2 clamping hole is opened equidistantly around one side of the top end of the rotating plate. The No. 2 clamping hole is adapted to the No. 1 clamping hole, and a clamping pin is installed inside the No. 1 clamping hole, and one end of the clamping pin is located inside the No. 2 clamping hole.
[0007] As an optimal technical solution for a processing device for a combustion chamber liner of the utility model, limiting grooves are provided on both sides of the inner wall of the guide slot, and limiting protrusions are provided on both sides of the L-shaped slider, and the limiting protrusions are located inside the limiting grooves.
[0008] As a preferred technical solution for a processing equipment for a combustion chamber liner of the utility model, a No. 1 insert is welded to the middle of one end of the L-shaped slider, one end of the output rod of the No. 1 electric hydraulic push rod is located inside the No. 1 insert, and one side of the outer wall of the output rod of the No. 1 electric hydraulic push rod and the No. 1 insert are connected by a No. 1 bolt.
[0009] As a preferred technical solution for a processing equipment for a combustion chamber liner of the utility model, a No. 2 insert is welded to the middle part of the top of the fixed block, one end of the output rod of the No. 2 electric hydraulic push rod is located inside the No. 2 insert, and one side of the outer wall of the output rod of the No. 2 electric hydraulic push rod and the No. 2 insert are connected by a No. 2 bolt.
[0010] As an optimal technical solution for a processing equipment for a combustion chamber liner of the utility model, a positioning slot is provided at the bottom of one side of the fixing block, a fixing screw slot is provided in the middle of one side of the inner wall of the positioning slot, a cutting bit is installed inside the positioning slot, a fixing hole is provided in the middle of one side of the cutting bit, a fixing screw is installed inside the fixing hole, and one end of the fixing screw is located inside the fixing screw slot.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] When the utility model is in use, the use position of the cutting head can be adjusted by using a No. 1 electric hydraulic push rod, the use height of the cutting head can be adjusted by using a No. 2 electric hydraulic push rod, and the combustion chamber liner can be driven to rotate by using a CNC turntable. When the cutting head is located inside the combustion chamber liner and the combustion chamber liner is driven to rotate at the same time, the cutting head can perform turning processing on the inner wall of the combustion chamber liner, thereby facilitating the processing and forming of the inner wall of the combustion chamber liner. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the installation structure of the first electric hydraulic push rod of the utility model;
[0016] Figure 3 This is an exploded view of the installation of the No. 2 electric hydraulic push rod of the utility model;
[0017] Figure 4 This is an exploded view of the installation of the cutting head of the utility model.
[0018] In the figure: 1. CNC turntable; 2. Configuration table; 3. Support column; 4. Annular support groove; 5. Turntable; 6. Support plate; 7. Guide slot; 8. Limit block; 9. No. 1 electric hydraulic push rod; 10. L-shaped slider; 11. No. 2 electric hydraulic push rod; 12. Fixed block; 13. Cutting head; 14. T-shaped slot; 15. L-shaped baffle; 16. No. 1 hole; 17. No. 2 hole; 18. Pin; 19. No. 1 insert; 20. No. 1 bolt; 21. No. 2 insert; 22. No. 2 bolt; 23. Positioning slot; 24. Fixing screw slot; 25. Fixing hole; 26. Fixing screw. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example
[0020] See also Figures 1 to 4 The utility model provides the following technical solutions: a processing device for a combustion chamber liner, comprising a numerical control turntable 1, a configuration table 2 is arranged on the side of the numerical control turntable 1, a T-shaped card slot 14 is equidistantly provided on the top of the numerical control turntable 1, an L-shaped baffle 15 is installed near the T-shaped card slot 14 on the top of the numerical control turntable 1, a T-shaped card block is welded at the middle of the bottom end of the L-shaped baffle 15, the T-shaped card block and the T-shaped card slot 14 are adapted to each other, limiting screw holes are provided on both sides of the bottom end of the L-shaped baffle 15, and limiting screws are installed inside the limiting screw holes to facilitate the installation and use of the L-shaped baffle 15, and the installation method of the L-shaped baffle 15 is a conventional technical means, which will not be described in detail here;
[0021] A support column 3 is welded to one side of the top of the configuration table 2, and an annular support groove 4 is provided on the top of the outer wall of the support column 3. A No. 1 clamping hole 16 is provided on one side of the top of the inner wall of the annular support groove 4. A rotating plate 5 is movably installed inside the annular support groove 4. No. 2 clamping holes 17 are equidistantly provided on one side of the top of the rotating plate 5. The No. 2 clamping holes 17 and the No. 1 clamping holes 16 are adapted to each other. A clamping pin 18 is installed inside the No. 1 clamping hole 16, and one end of the clamping pin 18 is located inside the No. 2 clamping hole 17, which can fix the rotating plate 5 and facilitate the adjustment of the use direction of the rotating plate 5. A support plate 6 is welded to one end of the rotating plate 5, and a guide clamping groove 7 is provided on one side of the bottom end of the supporting plate 6. Both sides of the inner wall of the guide clamping groove 7 are provided with limited sliding grooves. Two limit blocks 8 are welded to the other side of the bottom end of the supporting plate 6, and a No. 1 electric hydraulic push rod 9 is installed inside the two limit blocks 8;
[0022] An L-shaped slider 10 is installed at the output end of the No. 1 electric hydraulic push rod 9, and a No. 1 plug 19 is welded in the middle of one end of the L-shaped slider 10. One end of the output rod of the No. 1 electric hydraulic push rod 9 is located inside the No. 1 plug 19. One side of the outer wall of the output rod of the No. 1 electric hydraulic push rod 9 and the No. 1 plug 19 are connected by a No. 1 bolt 20, which is convenient for the connection and fixation between the No. 1 electric hydraulic push rod 9 and the L-shaped slider 10. The L-shaped slider 10 is located inside the guide card slot 7. Limiting protrusions are arranged on both sides of the L-shaped slider 10. The limiting protrusions are located inside the limiting slide groove, which can support and limit the installation of the L-shaped slider 10, which is convenient for the use of the L-shaped slider 10. A No. 2 electric hydraulic push rod 11 is installed through the middle of the top of the L-shaped slider 10. The output end of the No. 2 electric hydraulic push rod 11 is installed A fixing block 12 is installed, and a No. 2 plug 21 is welded to the middle part of the top of the fixing block 12. One end of the output rod of the No. 2 electric hydraulic push rod 11 is located inside the No. 2 plug 21. One side of the outer wall of the output rod of the No. 2 electric hydraulic push rod 11 and the No. 2 plug 21 are connected by a No. 2 bolt 22, which is convenient for the connection and fixation between the No. 2 electric hydraulic push rod 11 and the fixing block 12. A positioning groove 23 is provided at the bottom of one side of the fixing block 12, and a fixing screw groove 24 is provided in the middle part of one side of the inner wall of the positioning groove 23. A cutting bit 13 is installed inside the positioning groove 23, and a fixing hole 25 is provided in the middle part of one side of the cutting head 13. A fixing screw 26 is installed inside the fixing hole 25, and one end of the fixing screw 26 is located inside the fixing screw groove 24, which is convenient for the installation and use of the cutting head 13. The input end of the CNC turntable 1, the input end of the No. 1 electric hydraulic push rod 9 and the input end of the No. 2 electric hydraulic push rod 11 are all electrically connected to the output end of the external control circuit. The CNC turntable 1, the No. 1 electric hydraulic push rod 9 and the No. 2 electric hydraulic push rod 11 are all existing technical equipment, and their specific structures and working principles are not described in detail here.
[0023] The working principle and use process of the utility model are as follows: the staff places the combustion chamber liner to be processed on the CNC turntable 1, and after adjusting the position of the workpiece to be processed, the staff installs the L-shaped baffle 15 to fix the workpiece to be processed, and then the staff rotates the support plate 6 to make the support plate 6 and the workpiece to be processed in a vertical state. After adjusting the support plate 6, the staff installs the bayonet 18 to limit and fix the turntable 5, and then the staff respectively starts the No. 1 electric hydraulic push rod 9 and the No. 2 electric hydraulic push rod 11, and the No. 1 electric hydraulic push rod 9 works to push the L-shaped slide block 10 to move, so that the cutting tool can be The use position of the head 13 is adjusted, and the No. 2 electric hydraulic push rod 11 works to push the fixed block 12 to move, so that the use height of the cutting head 13 can be adjusted. After the use height and use position of the cutting head 13 are adjusted (the cutting head 13 is in contact with the workpiece to be processed), the staff starts the CNC turntable 1 (the use position and use height of the cutting head 13 need to be adjusted in real time according to the actual situation during the processing), and the CNC turntable 1 works to drive the workpiece to be processed to rotate. When the workpiece rotates and contacts the cutting head 13, its inner wall can be turned, which is convenient for the processing of the inner wall of the combustion chamber liner.
[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A processing device for a combustion chamber liner, comprising a numerically controlled turntable (1), characterized in that: A configuration platform (2) is arranged on the side of the numerical control turntable (1), a support column (3) is welded to one side of the top of the configuration platform (2), an annular support groove (4) is provided on the top of the outer wall of the support column (3), a rotating plate (5) is movably installed inside the annular support groove (4), a support plate (6) is welded to one end of the rotating plate (5), a guide groove (7) is provided on one side of the bottom of the support plate (6), two limit blocks (8) are welded to the other side of the bottom of the support plate (6), a No. 1 electric hydraulic push rod (9) is installed inside the two limit blocks (8), an L-shaped slider (10) is installed at the output end of the No. 1 electric hydraulic push rod (9), the L-shaped slider (10) is located inside the guide groove (7), a No. 2 electric hydraulic push rod (11) is installed through the middle of the top of the L-shaped slider (10), a fixed block (12) is installed at the output end of the No. 2 electric hydraulic push rod (11), and a cutting tool head (13) is installed at the bottom of one side of the fixed block (12).
2. A processing device for a combustion chamber liner according to claim 1, characterized in that: The top of the numerical control turntable (1) is provided with T-shaped slots (14) at equal intervals, and an L-shaped baffle (15) is installed at the top of the numerical control turntable (1) near the T-shaped slots (14).
3. A processing device for a combustion chamber liner according to claim 1, characterized in that: A first clamping hole (16) is provided on one side of the top end of the inner wall of the annular support groove (4), and second clamping holes (17) are provided on one side of the top end of the rotating plate (5) at equal intervals around the circumference. The second clamping hole (17) and the first clamping hole (16) are adapted to each other, and a clamping pin (18) is installed inside the first clamping hole (16), and one end of the clamping pin (18) is located inside the second clamping hole (17).
4. A processing device for a combustion chamber liner according to claim 1, characterized in that: Limiting slide grooves are provided on both sides of the inner wall of the guide slot (7), and limiting protrusions are provided on both sides of the L-shaped sliding block (10), and the limiting protrusions are located inside the limiting slide grooves.
5. A processing device for a combustion chamber liner according to claim 4, characterized in that: A No. 1 insert pipe (19) is welded to the middle of one end of the L-shaped sliding block (10), one end of the output rod of the No. 1 electric hydraulic push rod (9) is located inside the No. 1 insert pipe (19), and one side of the outer wall of the output rod of the No. 1 electric hydraulic push rod (9) and the No. 1 insert pipe (19) are connected via a No. 1 bolt (20).
6. A processing device for a combustion chamber liner according to claim 5, characterized in that: A No. 2 insert pipe (21) is welded to the middle of the top end of the fixing block (12), one end of the output rod of the No. 2 electric hydraulic push rod (11) is located inside the No. 2 insert pipe (21), and one side of the outer wall of the output rod of the No. 2 electric hydraulic push rod (11) and the No. 2 insert pipe (21) are connected via a No. 2 bolt (22).
7. The processing equipment for combustion chamber liner according to claim 1, characterized in that: A positioning slot (23) is provided at the bottom of one side of the fixing block (12), a fixing screw slot (24) is provided in the middle of one side of the inner wall of the positioning slot (23), a cutting bit (13) is installed inside the positioning slot (23), a fixing hole (25) is provided in the middle of one side of the cutting bit (13), a fixing screw rod (26) is installed inside the fixing hole (25), and one end of the fixing screw rod (26) is located inside the fixing screw slot (24).