Vertical hydraulic automatic clamp for tubular combustion chamber workpiece

Abstract

The utility model discloses a tubular combustion chamber workpiece vertical machining hydraulic automatic clamp which is high in clamping efficiency, capable of automatically clamping a workpiece, high in positioning accuracy and high in workpiece clamping stability. The device comprises a bottom plate and a main vertical plate vertically installed on the surface of the bottom plate, and is characterized in that a push block fixing plate is installed at the position close to the geometric center line of the top of the front face of the main vertical plate, and a supporting plate is vertically installed at the position close to the middle of the edge of one side of the front face of the main vertical plate; a positioning and fixing structure is arranged between the supporting plate and the push block fixing plate, and a fixed-point pressing structure is arranged around the positioning and fixing structure.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning jigs for tubular workpieces, and particularly relates to a vertical machining center hydraulic automation jig for tubular combustion chamber workpieces. Background Art

[0002] A certain combustion chamber workpiece is applied to engineering machinery and has high precision requirements. However, this type of workpiece usually has a large mass and large dimensions. Existing jigs are mostly manual jigs. Manual loading takes a long time, the clamping efficiency is low, and when manually clamping the workpiece, the workpiece is not evenly stressed, the stability of the workpiece being clamped is poor, and the positioning accuracy is also low, which is not conducive to production. Summary of the Utility Model

[0003] Aiming at the disadvantages of the existing jig with low clamping efficiency, uneven stress on the workpiece when manually clamping, low positioning accuracy, and poor stability of the workpiece being clamped, the utility model provides a vertical machining center hydraulic automation jig for tubular combustion chamber workpieces, which has high clamping efficiency, can automatically clamp the workpiece, has high positioning accuracy, and high stability of the workpiece being clamped.

[0004] The utility model provides the following technical solution: A vertical machining center hydraulic automation jig for tubular combustion chamber workpieces, which includes a bottom plate, and a main positioning plate vertically installed on the surface of the bottom plate. It is characterized in that: A push block fixing plate is installed near the geometric center line at the top of the front surface of the main positioning plate, and a support plate is vertically installed in the middle of one side edge near the front surface of the main positioning plate. A positioning and fixing structure is arranged between the support plate and the push block fixing plate, and a fixed-point pressing structure is arranged around the positioning and fixing structure.

[0005] Further features thereof are as follows:

[0006] The positioning and fixing structure includes a first positioning block, a center push block, a second positioning block, and a side push block. The first positioning block is vertically installed on the support plate, and a first groove is opened at its open end. Thickening pads are symmetrically installed on the inclined surface of the first groove. The installation end of the center push block is clamped at the middle part near the top of the front surface of the main positioning plate, and a push rod groove is opened at the middle part of the installation end. A first push rod is arranged behind the center push block. The first push rod is rotatably connected to the main positioning plate through a nut, and the push rod head penetrating the main positioning plate is clamped at the center of the push rod groove of the center push block. Below the center push block, near the bottom end of the main positioning plate, a second positioning block is arranged. The installation end of the second positioning block is clamped on the main positioning plate, and a second groove is opened at the open end of the other end. The installation end of the side push block is clamped on the side surface of the push block fixing plate facing the center push block, and a push rod groove is opened at the middle part. A second push rod is arranged behind the side push block. The second push rod is rotatably connected to the side push block through a nut, and the push rod head penetrating the push block fixing plate is clamped at the center of the push rod groove of the side push block;

[0007] The fixed-point pressing structure includes a vertical pressing block, a side pressing block, and a base pressing block. The tails of the vertical pressing block, the side pressing block, and the base pressing block are sequentially connected to the piston rod extending ends of a vertical oil cylinder, a side pressing oil cylinder, and a bottom oil cylinder. Oil cylinder bumps are provided on the surfaces of the vertical oil cylinder, the side pressing oil cylinder, and the bottom oil cylinder. Behind the first positioning block, the vertical oil cylinder is vertically installed on the surface of the support plate. The middle part of the vertical pressing block is rotatably connected through a hinge plate, a bolt pair, and an oil cylinder bump. When the piston rod of the vertical oil cylinder moves upward, it will drive the vertical pressing block to rotate around the center part of the pressing block, causing the head of the pressing block to perform a downward pressing movement. Behind the push block fixing plate, the side pressing oil cylinder is installed on the main vertical plate. At the trisecting line near the tail of the side pressing block, the side pressing block is rotatably connected through a hinge plate, a bolt pair, and the head of the push block fixing plate. When the piston rod of the side pressing oil cylinder extends, it drives the tail of the side pressing block to move synchronously. The side pressing block will rotate around the connection part with the hinge plate, causing the head of the side pressing block to perform a side pressing on the workpiece. The bottom oil cylinder is installed on the main vertical plate near the side of the second positioning block. The middle part of the base pressing block is rotatably connected through an inclined hinge plate, a bolt pair, and an oil cylinder bump. When the piston rod of the low-position oil cylinder extends, it drives the tail of the base pressing block to move synchronously. The base pressing block will rotate around the connection part with the hinge plate, causing the head of the base pressing block to perform a side pressing on the base of the workpiece;

[0008] Small rib plates and large rib plates are respectively installed in parallel on both sides of the main vertical plate;

[0009] A through hole is provided on the surface of the bottom plate, and a support pin is provided near the through hole.

[0010] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0011] In the positioning and fixing structure, the first positioning block and the second positioning block respectively position the horizontal pipe orifice and the vertical pipe orifice of the workpiece. Among them, the thickening backing plate can increase the fitting degree between the first positioning block and the horizontal pipe orifice of the workpiece, better fixing the pipe orifice. The center push block and the side push block respectively perform positioning and limitation on two surfaces of the head of the workpiece through manual adjustment;

[0012] In the fixed-point pressing structure, through the vertical oil cylinder, the side pressing oil cylinder, and the bottom oil cylinder, the vertical pressing block will quickly press the horizontal pipe orifice of the workpiece on the first positioning block. The side pressing block will cooperate with the center push block to quickly press and fix the head of the workpiece. The base pressing block will quickly press the base of the workpiece into the groove of the second positioning block;

[0013] The settings of the positioning and fixing structure and the fixed-point pressing structure can quickly and accurately position the workpiece, ensuring the speed of workpiece positioning and its repeated positioning efficiency, and improving the stability of workpiece positioning, indirectly improving the machining accuracy of the workpiece;

[0014] The setting of the large rib plate and the small rib plate increases the stability of the main vertical plate, ensures that the structure on the main vertical plate can work stably, and indirectly provides a guarantee for improving the clamping efficiency and positioning stability;

[0015] The support pin supports the bottom surface of the workpiece, reduces the force borne by the positioning structure, and supports the force from the bottom of the workpiece, further ensuring the stability of the positioned workpiece. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the working state of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 3 It is a rear view of the structure of the present invention;

[0019] Figure 4 It is an exploded view of the positioning and fixing structure of the present invention;

[0020] Figure 5 It is a schematic diagram of the side pressure block structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the vertical pressure block structure of the present invention;

[0022] Figure 7 It is a schematic diagram of the workpiece structure of the present invention.

[0023] Explanation of Reference Numerals:

[0024] 1, small rib plate; 2, large rib plate; 3, main vertical plate; 4, bottom plate; 5, support plate; 6, push block fixing plate; 7, first positioning block; 8, second positioning block; 9, center push block; 10, side push block; 11, vertical oil cylinder; 12, bottom oil cylinder; 13, side pressure oil cylinder; 14, vertical pressure block; 15, side pressure block; 16, base pressure block; 17, support pin; 18, oil cylinder convex block; 19, thickening cushion plate; 20, hinge plate; 21, oil distributor; 22, first push rod; 23, second push rod. Detailed Embodiment

[0025] The present invention provides as Figures 1 - 7A vertical machining center hydraulic automation fixture for a tubular combustion chamber workpiece as shown, which includes a base plate 4. A main position vertical plate 3 is vertically installed on the surface of the base plate 3. A small rib plate 1 and a large rib plate 2 are respectively installed in parallel on both sides of the main position vertical plate 3. A push block fixing plate 6 is installed near the geometric center line at the top of the front side of the main position vertical plate 3. A support plate 5 is vertically installed in the middle part near one edge of the front side of the main position vertical plate 3. A positioning and fixing structure is arranged between the support plate 5 and the push block fixing plate 6, and a fixed-point pressing structure is arranged around the positioning and fixing structure;

[0026] See Figure 2 、 Figure 4 The positioning and fixing structure includes a first positioning block 7, a center push block 9, a second positioning block 8 and a side push block 10. The first positioning block 7 is vertically installed on the support plate 5, and a first groove is opened at its open end. Thickening pads 19 are symmetrically installed on the inclined surface of the first groove. The installation end of the center push block 9 is clamped at the middle part near the top end of the front side of the main position vertical plate 3, and a push rod groove is opened at the middle part of the installation end. A first push rod 22 is arranged behind the center push block 9. The first push rod 22 is rotatably connected to the main position vertical plate 3 through a nut, and the push rod head of it passing through the main position vertical plate 3 is clamped at the center of the push rod groove of the center push block 9. Below the center push block 9, near the bottom end of the main position vertical plate 3, a second positioning block 8 is arranged. The installation end of the second positioning block 8 is clamped on the main position vertical plate 3, and a second groove is opened at the open end of the other end. The installation end of the side push block 10 is clamped on the side surface of the push block fixing plate 6 facing the center push block 9, and a push rod groove is opened at the middle part. A second push rod 23 is arranged behind the side push block 10. The second push rod 23 is rotatably connected to the side push block 10 through a nut, and the push rod head passing through the push block fixing plate 6 is clamped at the center of the push rod groove of the side push block 10;

[0027] See Figure 1 、 Figure 5 、 Figure 6, the fixed-point pressing structure includes a vertical pressing block 14, a side pressing block 15, and a base pressing block 16. The tails of the vertical pressing block 14, the side pressing block 15, and the base pressing block 16 are sequentially connected to the piston rod extending ends of a vertical oil cylinder 11, a side pressing oil cylinder 13, and a bottom oil cylinder 12. Oil cylinder bumps 18 are provided on the surfaces of the vertical oil cylinder 11, the side pressing oil cylinder 13, and the bottom oil cylinder 12. Behind the first positioning block 7, the vertical oil cylinder 11 is vertically installed on the surface of the support plate 5. The middle part of the vertical pressing block 14 is rotatably connected through a hinge plate 20, a bolt pair, and the oil cylinder bump 18. When the piston rod of the vertical oil cylinder 11 moves upward, it will drive the vertical pressing block 14 to rotate around the center part of its pressing block, causing the head of its pressing block to perform a downward pressing movement. Behind the push block fixing plate 6, the side pressing oil cylinder 13 is installed on the main vertical plate 3. At the trisecting line near the tail of the side pressing block 15, the side pressing block 15 is rotatably connected through a hinge plate 20, a bolt pair, and the head of the push block fixing plate 6. By the extension of the piston rod of the side pressing oil cylinder 13, the tail of the side pressing block 15 moves synchronously. The side pressing block 15 will rotate around the connection part with the hinge plate 20 to laterally press the workpiece with its head. The bottom oil cylinder 12 is installed on the main vertical plate 3 near the side of the second positioning block 8. The middle part of the base pressing block 16 is rotatably connected through an inclined hinge plate 20, a bolt pair, and the oil cylinder bump 18. When the piston rod of the low-position oil cylinder 12 extends, it drives the tail of the base pressing block 16 to move synchronously. The base pressing block 16 will rotate around the connection part with the hinge plate 20 to laterally press the base of the workpiece with its head;

[0028] See Figure 4 , a through hole is provided on the surface of the bottom plate 4, and a support pin 17 is provided near the through hole.

[0029] The working principle of the present utility model:

[0030] Refer to the attached drawings of the specification Figures 1 - 7 , when using the present utility model, first place the workpiece upright in the fixture. The horizontal pipe orifice and the vertical pipe orifice of the workpiece are respectively pressed against the first positioning block 7 and the second positioning block 8. The bottom of the workpiece is supported by the support pin 17. Then manually adjust the first push rod 22 and the second push block 23. At this time, the center push block 9 and the side push block 10 will move to limit the workpiece. At this time, the positioning is completed. Subsequently, start the vertical oil cylinder 11, the side pressing oil cylinder 13, and the bottom oil cylinder 12. At this time, the vertical pressing block 14 will press the horizontal pipe orifice of the workpiece, the side pressing block 15 cooperates with the center push block 9 to press the head of the workpiece, and the base pressing block 16 cooperates with the second positioning block to press the bottom of the workpiece, thus completing the positioning and clamping of the workpiece. Compared with the manual tooling, the present utility model greatly improves the clamping efficiency. At the same time, the positioning accuracy is high, and the workpiece is very stable when being clamped, indirectly improving the productivity of this type of workpiece.

Claims

1. A vertical machining center hydraulic automation fixture for a tubular combustion chamber workpiece, which comprises a bottom plate and a main vertical plate vertically installed on the surface of the bottom plate, and is characterized in that: A push block fixing plate is installed near the geometric center line at the top of the front side of the main vertical plate, and a support plate is vertically installed at the middle part near one side edge of the front side of the main vertical plate. A positioning and fixing structure is arranged between the support plate and the push block fixing plate, and a fixed-point pressing structure is arranged around the positioning and fixing structure.

2. The vertical machining center hydraulic automation fixture for a tubular combustion chamber workpiece according to claim 1, characterized in that: The positioning and fixing structure includes a first positioning block, a center push block, a second positioning block and a side push block. The first positioning block is vertically installed on the support plate, and a first groove is opened at its open end. Thickening pads are symmetrically installed on the inclined surface of the first groove. The installation end of the center push block is clamped at the middle part near the top end of the front side of the main vertical plate, and a push rod groove is opened at the middle part of the installation end. A first push rod is arranged behind the center push block. The first push rod is rotatably connected to the main vertical plate through a nut, and the push rod head penetrating the main vertical plate is clamped at the center of the push rod groove of the center push block. Below the center push block, near the bottom end of the main vertical plate, a second positioning block is arranged. The installation end of the second positioning block is clamped on the main vertical plate, and a second groove is opened at the open end of the other end. The installation end of the side push block is clamped on the side surface of the push block fixing plate facing the center push block, and a push rod groove is opened at the middle part. A second push rod is arranged behind the side push block. The second push rod is rotatably connected to the side push block through a nut, and the push rod head penetrating the push block fixing plate is clamped at the center of the push rod groove of the side push block.

3. The vertical machining center hydraulic automation fixture for a tubular combustion chamber workpiece according to claim 2, characterized in that: The fixed-point pressing structure includes a vertical pressing block, a side pressing block and a base pressing block. The tails of the vertical pressing block, the side pressing block and the base pressing block are sequentially connected to the piston rod extending ends of a vertical oil cylinder, a side pressing oil cylinder and a bottom oil cylinder. Oil cylinder bumps are arranged on the surfaces of the vertical oil cylinder, the side pressing oil cylinder and the bottom oil cylinder. Behind the first positioning block, the vertical oil cylinder is vertically installed on the surface of the support plate. The middle part of the vertical pressing block is rotatably connected to the oil cylinder bump through a hinge plate, a bolt pair. When the piston rod of the vertical oil cylinder moves upward, it will drive the vertical pressing block to rotate around the center part of its pressing block, and the head of the pressing block will perform a downward pressing movement. Behind the push block fixing plate, a side pressing oil cylinder is installed on the main vertical plate. At the one-third line near the tail of the side pressing block, the side pressing block is rotatably connected to the head of the push block fixing plate through a hinge plate, a bolt pair. When the piston rod of the side pressing oil cylinder extends, it will drive the tail of the side pressing block to move synchronously. The side pressing block will rotate around the connecting part with the hinge plate, and the head of the side pressing block will perform a side pressing on the workpiece. The bottom oil cylinder is installed on the main vertical plate near the side of the second positioning block. The middle part of the base pressing block is rotatably connected to the oil cylinder bump through an inclined hinge plate, a bolt pair. When the piston rod of the bottom oil cylinder extends, it will drive the tail of the base pressing block to move synchronously. The base pressing block will rotate around the connecting part with the hinge plate, and the head of the base pressing block will perform a side pressing on the base of the workpiece.

4. A vertical machining center hydraulic automation fixture for a tubular combustion chamber workpiece according to claim 3, characterized in that: Small rib plates and large rib plates are installed side by side on both sides of the main vertical plate.

5. The vertical machining center hydraulic automation fixture for a tubular combustion chamber workpiece according to claim 4, wherein: Through holes are opened on the surface of the bottom plate, and support pins are arranged near the through holes.

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