Rod piece hole chamfering clamp

Abstract

The utility model discloses a rod piece hole chamfering clamp which comprises a machining table top, fixing supports are symmetrically and fixedly connected to the left end and the right end of the top of the machining table top, a first threaded hole is formed in the middle of the top of each fixing support, and a second inserting hole is formed in the middle of the top end of the left side of each fixing support. A restraining support is arranged between the two fixing supports, second threaded holes are formed in the top of the rear side of the restraining support at the left end and the top of the front side of the restraining support at the right end, second fastening screws are arranged on the outer sides of the second threaded holes, and a first inserting hole is formed in the middle of the top end of the left side of each restraining support. The two fixing supports and the two restraining supports are arranged and matched with the fastening screws for use, the rod piece is clamped and fixed, the multiple fixing supports are designed, it can be guaranteed that when the rod piece is moved in the axial direction, it is guaranteed that the rod piece is restrained and fastened through the two fixing supports all the time, the rod piece is prevented from swinging in the drilling process, and the machining precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a clamping fixture for chamfering holes in rods. Background Technology

[0002] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for machining or inspection; it is also called a clamp. In a broader sense, any device used to quickly, conveniently, and safely install a workpiece at any stage of the manufacturing process can be called a fixture. A fixture typically consists of positioning elements (which determine the correct position of the workpiece within the fixture), clamping devices, tool setting and guiding elements (which determine the relative position of the tool and the workpiece or guide the tool direction), indexing devices (which allow the workpiece to complete machining at several stations in a single setup; there are rotary indexing devices and linear indexing devices), connecting elements, and the fixture body (fixture base).

[0003] Existing rod hole chamfering techniques involve manual handling of the rod. Insufficient grip strength can cause the rod to slip and pose a safety hazard. Furthermore, manual drilling is not only complex and inefficient, but it can also lead to deviations in drilling quality. Therefore, those skilled in the art have developed a rod hole chamfering fixture to address the problems described in the background section. Utility Model Content

[0004] The purpose of this utility model is to provide a chamfering fixture for rod holes, which can prevent rod swaying during drilling and improve machining accuracy; and prevent the axis of the fixture support hole from not coinciding with the axis of the rod, thus improving the positional accuracy of the chamfer.

[0005] To achieve the above objectives, a rod hole chamfering fixture is provided, comprising: a processing table, wherein fixed supports are symmetrically fixedly connected to the left and right ends of the top of the processing table, a first threaded hole is opened in the middle of the top of the fixed supports, a second insertion hole is opened in the middle of the top left of the fixed supports, a first fastening screw is provided above the first threaded hole, a constraint support is provided between the two fixed supports, and the second threaded holes on the two constraint supports are set in axially symmetrical positions, which not only reduces the number of fastening bolts, but also ensures that the axis of the support hole coincides with the axis of the rod, a second threaded hole is opened on the rear top of the left constraint support and the front top of the right constraint support, a second fastening screw is provided on the outer side of the second threaded hole, and a first insertion hole is opened in the middle of the top left of the constraint support, both the first insertion hole and the second insertion hole are for inserting rods.

[0006] According to the rod hole chamfering fixture, fixed rods are fixedly connected to both the front and rear sides of the two fixed supports. The front and rear ends of the left side of the constraint support are respectively inserted into the middle of the front and rear fixed rods. The fixed rods play a fixing role to ensure stability during the drilling process.

[0007] According to the rod hole chamfering clamp, a rod is inserted into the first insertion hole and the second insertion hole, and the fixing rod is cylindrical.

[0008] According to the rod hole chamfering fixture, a fixing plate is fixedly connected to the bottom outer side of the constraint bracket. Fixing holes are provided at both the front and rear ends of the top of the fixing plate. The fixing plate and the entire fixture are firmly installed on the processing table using bolts.

[0009] According to the rod hole chamfering fixture, the first threaded hole is threadedly connected to the first fastening screw, and the second threaded hole is threadedly connected to the second fastening screw.

[0010] According to the rod hole chamfering clamp, the fixing bracket is convex in shape, and the constraint bracket is convex in shape.

[0011] Beneficial effects:

[0012] 1. This utility model uses two fixed supports and two constraint supports, which, together with fastening screws, clamp and fix the rod. The structure is simple, easy to operate, and reduces the technical requirements for workers. The design of multiple fixed supports ensures that the rod is always constrained and tightened by two fixed supports when the rod moves axially, preventing the rod from swinging during drilling and improving the machining accuracy.

[0013] 2. This utility model improves the positional accuracy of the chamfer by providing a second fastening screw and a second threaded hole, with the two second fastening screws arranged in an axially symmetrical position to prevent the axis of the clamp bracket hole from not coinciding with the axis of the rod.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a top view of the three-dimensional structure of a rod hole chamfering clamp according to the present invention;

[0017] Figure 2 This is a top view of the three-dimensional structure of a rod hole chamfering clamp according to the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of a rod hole chamfering clamp according to the present invention;

[0019] Figure 4 This is an enlarged view of the constraint support structure of a rod hole chamfering clamp according to the present invention.

[0020] Legend:

[0021] 1. Machining table; 2. First fastening screw; 3. Fixing rod; 4. Constraint bracket; 5. Fixing hole; 6. Fixing plate; 7. First threaded hole; 8. Second threaded hole; 9. Second fastening screw; 10. Rod; 11. First insertion hole; 12. Second insertion hole; 13. Fixing bracket. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figures 1-4 This utility model discloses a rod hole chamfering fixture, which includes a processing table 1. Fixed supports 13 are symmetrically fixedly connected to the left and right ends of the top of the processing table 1. A first threaded hole 7 is opened in the middle of the top of the fixed support 13. A second insertion hole 12 is opened in the middle of the top left side of the fixed support 13. A first fastening screw 2 is provided above the first threaded hole 7. A constraint support 4 is provided between the two fixed supports 13. The second threaded holes 8 on the two constraint supports 4 are arranged in an axially symmetrical position, which not only reduces the number of fastening bolts but also ensures that the axis of the support hole coincides with the axis of the rod 10. A second threaded hole 8 is opened on the top rear side of the left constraint support 4 and the top front side of the right constraint support 4. A second fastening screw 9 is provided on the outer side of the second threaded hole 8. A first insertion hole 11 is opened in the middle of the top left side of the constraint support 4. Both the first insertion hole 11 and the second insertion hole 12 are for inserting rods 10. The rod 10 is clamped by fastening bolts to prevent the axis of rod 10 from being misaligned with the axis of the chamfering drill, thus preventing deviation and ensuring the quality of the chamfering. This also reduces drill wear and breakage, improving processing quality and efficiency. The fixture is then fixed to the processing table 1 of the bench drill press with bolts. This product is made of HT200 steel. The rod 10 has a diameter of 30mm and a length of 600mm. The hole diameter of the rod 10 is 10mm, with a chamfer of C3. The fixture hole diameter is 32mm. M8 fastening screws are used for alignment. The fixing rod 3 is 800mm long and 35mm in diameter.

[0024] Fixed rods 3 are fixedly connected to both the front and rear sides of the two fixed brackets 13. The front and rear ends of the left side of the constraint bracket 4 are respectively inserted into the middle of the front and rear fixed rods 3. Rods 10 are inserted into the first insertion hole 11 and the second insertion hole 12. The fixed rods 3 are cylindrical. A fixed plate 6 is fixedly connected to the bottom of the outer side of the constraint bracket 4. The fixed plate 6 is further fixed. Fixed holes 5 are opened at both the front and rear ends of the top of the fixed plate 6. The fixed holes 5 are used to fix the entire fixture on the processing table 1 of the bench drill press by connecting with bolts. The first threaded hole 7 is threadedly connected to the first fastening screw 2, and the second threaded hole 8 is threadedly connected to the second fastening screw 9. The fixed bracket 13 is U-shaped, and the constraint bracket 4 is U-shaped.

[0025] Working principle: The entire fixture is fixed to the machining table 1 of the bench drill press with bolts. The rod 10 to be machined is inserted into the second insertion hole 12 of the fixed bracket 13. The hole to be drilled on the rod 10 is aligned with the axis of the drill bit. The rod 10 is fixed with the first fastening screw 2 and the second fastening screw 9. The rod is then chamfered using the bench drill press. After that, the first fastening screw 2 and the second fastening screw 9 are loosened, and the rod 10 is moved to adjust its position. This process is repeated to complete the chamfering of each hole.

[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A chamfering fixture for rod holes, comprising: A processing table (1) is characterized in that fixed brackets (13) are symmetrically fixedly connected to the top left and right ends of the processing table (1). A first threaded hole (7) is opened in the middle of the top of the fixed bracket (13). A second insertion hole (12) is opened in the middle of the top left end of the fixed bracket (13). A first fastening screw (2) is provided above the first threaded hole (7). A constraint bracket (4) is provided between the two fixed brackets (13). A second threaded hole (8) is opened on the top rear side of the left constraint bracket (4) and the top front side of the right constraint bracket (4). A second fastening screw (9) is provided on the outside of the second threaded hole (8). A first insertion hole (11) is opened in the middle of the top left end of the constraint bracket (4).

2. The rod hole chamfering fixture according to claim 1, characterized in that, Fixed rods (3) are fixedly connected to both the front and rear sides of the two fixed brackets (13), and the front and rear ends of the left side of the constraint bracket (4) are respectively inserted into the middle of the front and rear fixed rods (3).

3. A rod hole chamfering fixture according to claim 2, characterized in that, A rod (10) is inserted into the first insertion hole (11) and the second insertion hole (12), and the fixing rod (3) is cylindrical.

4. A rod hole chamfering fixture according to claim 1, characterized in that, A fixing plate (6) is fixedly connected to the bottom of the outer side of the constraint bracket (4), and fixing holes (5) are provided at both the front and rear ends of the top of the fixing plate (6).

5. A rod hole chamfering fixture according to claim 1, characterized in that, The first threaded hole (7) is threadedly connected to the first fastening screw (2), and the second threaded hole (8) is threadedly connected to the second fastening screw (9).

6. A rod hole chamfering fixture according to claim 1, characterized in that, The fixed bracket (13) is convex in shape, and the constraint bracket (4) is convex in shape.

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