Machining tool for symmetrical base connecting piece

Abstract

The machining tool comprises a base and a rotary clamping mechanism, the rotary clamping mechanism comprises a supporting block, a first clamping assembly and a second clamping assembly, the first clamping assembly comprises a first limiting base, a first side check block and a first limiting plate, and the second clamping assembly comprises a second limiting plate. The second clamping assembly comprises a second limiting base, a second side stop block and a second limiting plate. The base and the rotary clamping base are connected in a rotatable locking mode. The base and the rotary clamping mechanism are combined for use, when a left symmetrical workpiece is drilled, the left symmetrical workpiece is placed in the first clamping assembly to be clamped and limited, drilling treatment can be carried out, when a right symmetrical workpiece is drilled, the supporting base is rotated, the second clamping assembly is arranged upwards, and after locking is carried out, the left symmetrical workpiece is clamped and limited in the first clamping assembly, and the right symmetrical workpiece is clamped and limited in the second clamping assembly. The right symmetrical workpieces are placed in the second clamping assembly to be clamped and limited, machining can be carried out, the symmetrical workpieces can be switched to be machined without replacing tools, and the debugging and positioning time is saved.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a machining fixture for a symmetrical base connector. Background Technology

[0002] Base connectors refer to bottom connection devices used to fix or support equipment, structures, pipes and other components. There are many types of base connectors. Among them, symmetrical connectors are a commonly used type of base connector. They are generally composed of two opposite symmetrical workpieces. In the manufacturing process of symmetrical base connectors, drilling is required. Before drilling, the connectors are usually clamped before operation.

[0003] During the drilling process, because the two components of the symmetrical base connector are symmetrically arranged and the openings on the two components face different directions, see the specific structure below. Figure 8 During processing, different machining fixtures are required for clamping and positioning, which not only wastes time but also affects the shape and position tolerances of the workpiece, often failing to meet the workpiece design accuracy requirements and reducing the processing quality. Summary of the Invention

[0004] To address the aforementioned problems, this utility model provides a machining fixture for symmetrical base connectors that offers high processing efficiency and enables rapid clamping and drilling of symmetrical connectors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a machining fixture for a symmetrical base connector, comprising a base and a rotating clamping mechanism.

[0006] The base is an "L" shaped plate structure. Mounting holes are symmetrically opened on both sides of the horizontal plane of the base, and a circular connecting hole penetrating the thickness direction is opened at the upper part of the midpoint of the vertical plane.

[0007] The rotating clamping mechanism includes a support block, a first clamping assembly, and a second clamping assembly. The support block is a square block structure, and a connecting shaft is fixedly installed at the midpoint of the rear end face of the support block. The connecting shaft is divided into a limiting section, a rotating section, and a locking section. The section closest to the support block is the limiting section, and the rotating section and the locking section are located sequentially on one side of the limiting section. The shaft diameter of the limiting section is larger than the diameter of the connecting hole in the base, and the shaft diameter of the rotating section is smaller than the diameter of the connecting hole, forming a transition fit between them. The shaft length of the rotating section is less than the thickness of the plane perpendicular to the base, forming a shoulder clearance design relationship with the connecting hole. The locking section 7 has an external thread structure on its shaft, and a locking sleeve is also provided on its shaft, with the outer diameter of the locking sleeve being larger than the shaft diameter of the connecting hole.

[0008] The first clamping assembly includes a first limiting seat, a first side stop, and a first limiting plate. The first limiting seat is mounted on the upper left end face of the support block. A threaded limiting through hole facing the midpoint of the top surface of the support block is opened on the end face of the first limiting seat, and an adjustable limiting rod is installed in the threaded limiting through hole. The first side stop is mounted on the right side of the top surface of the support block and is opposite to the limiting through hole of the first limiting seat. The first limiting plate is located on the rear side of the top surface of the support block and is connected to the limiting section of the connecting shaft.

[0009] The second clamping assembly includes a second limiting seat, a second side stop, and a second limiting plate. The second limiting seat is mounted on the lower left end face of the support block. The end face of the second limiting seat has a threaded limiting through hole facing the midpoint of the bottom surface of the support block. There are two limiting through holes arranged vertically on the second limiting seat. Adjustable limiting rods are installed in the threaded limiting through holes respectively. The second side stop is mounted on the right side of the bottom surface of the support block and is opposite to the limiting through hole of the second limiting seat. The second limiting plate is mounted on the rear side of the bottom surface of the support block and is connected to the limiting section of the connecting shaft.

[0010] The base and the rotary clamping seat are rotatably locked together. The rotary clamping seat is located on the side where the horizontal and vertical planes of the base intersect. The connecting shaft of the rotary clamping seat passes through the connecting hole of the base, and the rotating section of the connecting seat is located inside the connecting hole of the base. The locking section 7 extends out of the base. Then, the connecting shaft is rotated so that the first clamping assembly or the second clamping assembly is facing upward. Then, the upper locking sleeve of the locking section 7 is rotated so that it cooperates with the limiting section of the connecting shaft to lock together on the base.

[0011] As an optimization of this case, in order to improve the clamping effect and ensure the processing accuracy, the first clamping assembly also includes a first clamping rod and a first clamping plate. The first clamping rod is a threaded rod, and its bottom is fixed to the top surface of the first limiting plate. A threaded hole is opened on the side of the plate surface of the first clamping plate, and it is connected to the first clamping rod through the threaded hole. The first clamping plate faces the midpoint of the top surface of the support block.

[0012] Furthermore, the second clamping assembly also includes a second clamping rod and a second clamping plate. The second clamping rod is a threaded rod, the top of which is fixed to the bottom surface of the second limiting plate. The second clamping plate has a threaded hole on its side surface and is connected to the second clamping rod through the threaded hole. The second clamping plate faces the midpoint of the bottom surface of the support block.

[0013] As an optimization of this case, in order to improve the positioning accuracy after changing the workpiece and adjusting the rotating support block, the base is provided with rotation angle reference lines on both sides of the connection hole on the vertical surface facing the horizontal plane, and the distance between the two rotation angle reference lines is the same as the length of the support block.

[0014] Beneficial effects: This utility model combines a base and a rotating clamping mechanism. The base is installed behind the drilling machine, and then the rotating clamping mechanism is installed on the base. When drilling a left-symmetrical workpiece, the left-symmetrical workpiece is placed in the first clamping assembly for clamping and limiting, and then drilling can be performed. When drilling a right-symmetrical workpiece, the support base is rotated so that the second clamping assembly faces upward. After locking, the right-symmetrical workpiece is placed in the second clamping assembly for clamping and limiting, and then drilling can be performed. The processing is fast and the positioning is accurate. Moreover, it is possible to switch to process symmetrical workpieces without changing the tooling, saving debugging and positioning time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 for Figure 1 A schematic diagram of the main structure.

[0017] Figure 3 This is a schematic diagram of the base structure in this utility model.

[0018] Figure 4 This is a schematic diagram of the rotating clamping mechanism in this utility model.

[0019] Figure 5 for Figure 4 A schematic diagram of the main structure.

[0020] Figure 6 for Figure 4 A side view structural diagram.

[0021] Figure 7 This is a schematic diagram of the connecting shaft in this utility model.

[0022] Figure 8 This is a structural schematic diagram of the symmetrical base connector.

[0023] Figure 9 This is a schematic diagram of the structure of the present invention when processing a left-symmetrical workpiece.

[0024] Figure 10 for Figure 9 A schematic diagram of the main structure.

[0025] Figure 11 This is a schematic diagram of the structure of the present invention when machining a right-symmetrical workpiece.

[0026] Figure 12 for Figure 11 A schematic diagram of the main structure.

[0027] In the figure: 1. Base; 2. Connecting hole; 3. Support block; 4. Connecting shaft; 5. Limiting section; 6. Rotating section; 7. Locking section; 8. Locking sleeve; 9. First limiting seat; 10. First side stop; 11. First limiting plate; 12. Second limiting seat; 13. Second side stop; 14. Second limiting plate; 15. First clamping rod; 16. First clamping plate; 17. Second clamping rod; 18. Second clamping plate; 19. Rotation angle reference line; 21. Left symmetrical workpiece; 22. Right symmetrical workpiece. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, the accompanying drawings are all in a very simplified form, using non-precise ratios, and are only used to facilitate and clearly illustrate the purpose of the embodiments of this utility model.

[0030] like Figure 1-12 As shown, this embodiment discloses a machining fixture for a symmetrical base connector, including a base 1 and a rotating clamping mechanism.

[0031] See Figure 1 and Figure 3 The base 1 is an "L" shaped plate structure. The horizontal plane of the base 1 has symmetrical mounting holes on both sides, and the vertical plane has a circular connecting hole 2 that penetrates the thickness direction at the upper part of the midpoint.

[0032] See Figure 1 , Figure 2 , Figure 4-7 The rotating clamping mechanism includes a support block 3, a first clamping assembly, and a second clamping assembly, from... Figure 4 As can be seen, the support block 3 is a square block structure, and a connecting shaft 4 is fixedly installed at the midpoint of the rear end face of the support block 3. (See Figure 1) Figure 6 and Figure 7 The connecting shaft 4 is divided into a limiting section 5, a rotating section 6, and a locking section 7. The limiting section 5 is closer to the support block 3. The rotating section 6 and the locking section 7 are located on one side of the limiting section 5. The shaft diameter of the limiting section 5 is larger than the diameter of the connecting hole 2 of the base 1, and the shaft diameter of the rotating section 6 is smaller than the diameter of the connecting hole 2. A transition fit relationship is formed between the two. The shaft length of the rotating section 6 is smaller than the thickness of the plane perpendicular to the base 1, and a shoulder clearance design relationship is formed between it and the connecting hole 2. The shaft diameter of the locking section 7 is smaller than the shaft diameter of the rotating section 6. The shaft of the locking section 7 has an external thread structure, and a locking sleeve 8 is also provided on its shaft. The outer diameter of the locking sleeve 8 is larger than the shaft diameter of the connecting hole 2.

[0033] from Figure 1 and Figure 2 As can be seen, the first clamping assembly includes a first limiting seat 9, a first side stop 10, and a first limiting plate 11. The first limiting seat 9 is mounted on the upper left end face of the support block 3. A threaded limiting through hole facing the midpoint of the top surface of the support block 3 is opened on the end face of the first limiting seat 9, and an adjustable limiting rod is installed in the threaded limiting through hole. The first side stop 10 is mounted on the right side of the top surface of the support block 3 and is opposite to the limiting through hole of the first limiting seat 9. The first limiting plate 11 is located on the rear side of the top surface of the support block 3 and is connected to the limiting section 5 of the connecting shaft 4.

[0034] See Figure 1-2 , Figure 4-7 The first clamping assembly further includes a first clamping rod 15 and a first clamping plate 16. The first clamping rod 15 is a threaded rod, and its bottom is fixed to the top surface of the first limiting plate 11. The first clamping plate 16 has a threaded hole on its side and is connected to the first clamping rod 15 through the threaded hole. The first clamping plate 16 faces the midpoint of the top surface of the support block 3.

[0035] See Figure 1 and Figure 2 The second clamping assembly includes a second limiting seat 12, a second side stop 13, and a second limiting plate 14. The second limiting seat 12 is mounted on the lower left end face of the support block 3. A threaded limiting through hole is opened on the end face of the second limiting seat 12, facing the midpoint of the bottom surface of the support block 3. The number of limiting through holes is two, which are vertically arranged on the second limiting seat 12. Adjustable limiting rods are installed in the threaded limiting through holes respectively. The second side stop 13 is mounted on the right side of the bottom surface of the support block 3 and is opposite to the limiting through hole of the second limiting seat 12. The second limiting plate 14 is mounted on the rear side of the bottom surface of the support block 3 and is connected to the limiting section 5 of the connecting shaft 4.

[0036] See Figure 1-2 , Figure 4-7 The second clamping assembly also includes a second clamping rod 17 and a second clamping plate 18. The second clamping rod 17 is a threaded rod, and its top is fixed to the bottom surface of the second limiting plate 14. The second clamping plate 18 has a threaded hole on its side and is connected to the second clamping rod 17 through the threaded hole. The second clamping plate 18 faces the midpoint of the bottom surface of the support block 3.

[0037] See Figure 1The base 1 and the rotating clamping seat are rotatably locked together. The rotating clamping seat is located on the side where the horizontal plane and the vertical plane of the base 1 intersect. The connecting shaft 4 of the rotating clamping seat passes through the connecting hole 2 of the base 1, and the rotating section 6 of the connecting seat is located inside the connecting hole 2 of the base 1. The locking section 7 extends out of the base 1. Then, the connecting shaft 4 is rotated so that the first clamping assembly or the second clamping assembly is facing upward. Then, the upper locking sleeve 8 of the locking section 7 is rotated so that it cooperates with the limiting section 5 of the connecting shaft 4 to lock and connect on the base 1.

[0038] from Figure 1-3 It can be seen that the base 1 has rotation angle reference lines 19 on both sides of the connection hole 2 on the vertical surface facing the horizontal plane, and the distance between the two rotation angle reference lines 19 is the same as the length of the support block 3.

[0039] In use, first install this device on the drilling machine through the mounting holes and mounting bolts on the base 1. Adjust the drilling position of the drilling machine according to actual needs. When machining the left-symmetrical workpiece 21, refer to... Figure 9 and Figure 10 Rotate the connecting shaft 4 to adjust the support block 3, ensuring that all parts of the first clamping assembly are facing upwards. Refer to the rotation angle reference line 19 to make the upper and lower surfaces of the support block 3 parallel to the horizontal plane of the base 1. After adjustment, use the locking sleeve 8 to lock the connecting shaft 4 to the vertical plane of the base 1. Rotate the limiting rod of the first rotating limiting seat according to the size of the left symmetrical workpiece 21 so that the distance between it and the first limiting block is adapted to the clamping width of the workpiece. Then adjust the distance between the first clamping plate 16 and the support block 3 so that it is adapted to the clamping height of the workpiece. After adjustment, place the workpiece into the clamping mouth formed by the parts of the first clamping assembly for clamping and limiting, and then start the drilling machine to drill the workpiece.

[0040] When machining the right-symmetric workpiece 22, see [reference needed]. Figure 11 and Figure 12 Rotate the connecting shaft 4 to drive the support block 3 to adjust, ensuring that all parts of the second clamping assembly are facing upwards. Refer to the rotation angle reference line 19 to make the upper and lower surfaces of the support block 3 parallel to the horizontal plane of the base 1. Then, install the adjustment steps of the first clamping assembly, adjust the spacing between the parts of the second clamping assembly, and make the clamping jaws formed match the clamping size of the right symmetrical workpiece 22. Then, the right symmetrical workpiece 22 can be drilled.

[0041] In summary, when machining the left-symmetrical workpiece 21 and the right-symmetrical workpiece 22, only the orientation of the first clamping assembly and the second clamping assembly needs to be adjusted by rotation, without the need to change different machining fixtures.

[0042] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A machining fixture for a symmetrical base connector, comprising a base (1) and a rotating clamping mechanism; the base (1) is an "L"-shaped plate structure, with mounting holes symmetrically opened on both sides of the horizontal plane of the base (1), and a circular connecting hole (2) penetrating the thickness direction opened at the upper part of the midpoint of the vertical plane; characterized in that: The rotating clamping mechanism includes a support block (3), a first clamping assembly, and a second clamping assembly. The support block (3) is a square block structure. A connecting shaft (4) is fixedly installed at the midpoint of the rear end face of the support block (3). The connecting shaft (4) is divided into a limiting section (5), a rotating section (6), and a locking section (7). The section closest to the support block (3) is the limiting section (5). The rotating section (6) and the locking section (7) are located on one side of the limiting section (5). The shaft diameter of the limiting section (5) is larger than that of the base ( 1) The diameter of the connecting hole (2) is smaller than the diameter of the connecting hole (2), and a transition fit relationship is formed between them. The length of the rotating section (6) is smaller than the thickness of the vertical plane, and a shoulder clearance design relationship is formed between it and the connecting hole (2). The diameter of the locking section (7) is smaller than the diameter of the rotating section (6). The locking section (7) has an external thread structure on its shaft, and a locking sleeve (8) is also provided on its shaft. The outer diameter of the locking sleeve (8) is larger than the diameter of the connecting hole (2). The first clamping assembly includes a first limiting seat (9), a first side stop (10), and a first limiting plate (11). The first limiting seat (9) is mounted on the upper left end face of the support block (3). A threaded limiting through hole facing the midpoint of the top surface of the support block (3) is opened on the end face of the first limiting seat (9), and an adjustable limiting rod is installed in the threaded limiting through hole. The first side stop (10) is mounted on the right side of the top surface of the support block (3) and is opposite to the limiting through hole of the first limiting seat (9). The first limiting plate (11) is located on the rear side of the top surface of the support block (3) and is connected to the limiting section (5) of the connecting shaft (4). The second clamping assembly includes a second limiting seat (12), a second side stop (13), and a second limiting plate (14). The second limiting seat (12) is mounted on the lower left end face of the support block (3). The end face of the second limiting seat (12) is provided with a threaded limiting through hole facing the midpoint of the bottom surface of the support block (3). The number of limiting through holes is two, which are vertically arranged on the second limiting seat (12). Adjustable limiting rods are installed in the threaded limiting through holes respectively. The second side stop (13) is mounted on the right side of the bottom surface of the support block (3) and is opposite to the limiting through hole of the second limiting seat (12). The second limiting plate (14) is mounted on the rear side of the bottom surface of the support block (3) and is connected to the limiting section (5) of the connecting shaft (4). The base (1) and the rotating clamping seat are rotatably locked together. The rotating clamping seat is located on the side where the horizontal plane and the vertical plane of the base (1) intersect. The connecting shaft (4) of the rotating clamping seat passes through the connecting hole (2) of the base (1), and the rotating section (6) of the connecting seat is located inside the connecting hole (2) of the base (1). The locking section (7) extends out of the base (1). Then, the connecting shaft (4) is rotated so that the first clamping assembly or the second clamping assembly is set upward. Then, the upper locking sleeve (8) of the locking section (7) is rotated so that it cooperates with the limiting section (5) of the connecting shaft (4) to lock and connect on the base (1).

2. The machining fixture for a symmetrical base connector according to claim 1, characterized in that: The first clamping assembly further includes a first clamping rod (15) and a first clamping plate (16). The first clamping rod (15) is a threaded rod, and its bottom is fixed to the top surface of the first limiting plate (11). The first clamping plate (16) has a threaded hole on its side surface and is connected to the first clamping rod (15) through the threaded hole. The first clamping plate (16) faces the midpoint of the top surface of the support block (3).

3. The machining fixture for a symmetrical base connector according to claim 2, characterized in that: The second clamping assembly also includes a second clamping rod (17) and a second clamping plate (18). The second clamping rod (17) is a threaded rod, and its top is fixed to the bottom surface of the second limiting plate (14). The second clamping plate (18) has a threaded hole on its side and is connected to the second clamping rod (17) through the threaded hole. The second clamping plate (18) faces the midpoint of the bottom surface of the support block (3).

4. A machining fixture for a symmetrical base connector according to any one of claims 1-3, characterized in that: The base (1) has a rotation angle reference line (19) on both sides of the connection hole (2) facing the horizontal plane, and the distance between the two rotation angle reference lines (19) is the same as the length of the support block (3).

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