Screw fixing device

Abstract

The utility model discloses a screw fixing device. The device comprises a positioning seat, a clamping seat and a clamping seat, wherein a positioning groove is formed in the positioning seat; a positioning hole is formed in the positioning groove and used for allowing a screw to be machined to penetrate. And the fastening screw is used for jacking the to-be-machined screw so that the head of the to-be-machined screw can be fixed in the positioning groove, and the threaded end of the to-be-machined screw can be fixed in the positioning hole. By means of the device, the head of the screw to be machined can be stably fixed in the positioning groove, and the threaded end of the screw to be machined can be stably fixed in the positioning hole; and the to-be-machined screw cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, and more specifically, to a screw fixing device. Background Art

[0002] In the existing processing technology, the turning process completes the processing except for the internal thread on the head end face, and the benchwork process uses a three-jaw chuck to clamp the part to complete the processing of the internal thread on the end face. However, since the diameter of the threaded end of the part is only Φ3mm, the clamping force should not be too large. Therefore, during the processing of the threaded hole on the head end face of the part, the part frequently rotates axially, affecting the processing efficiency and quality.

[0003] Regarding the problem that when using a three-jaw chuck to clamp a part in the prior art, the clamping force is not too large, resulting in frequent axial rotation of the part, affecting the processing efficiency and quality, no effective solution has been proposed yet. Summary of the Utility Model

[0004] An embodiment of the utility model provides a screw fixing device to solve the problem that when using a three-jaw chuck to clamp a part in the prior art, the clamping force is not too large, resulting in frequent axial rotation of the part, affecting the processing efficiency and quality.

[0005] To achieve the above object, the utility model provides a screw fixing device, which includes: a positioning seat, on which a positioning groove is provided; a positioning hole is opened in the positioning groove for a screw to be processed to pass through; a fastening screw for pressing the screw to be processed so that the head of the screw to be processed is fixed in the positioning groove and the threaded end is fixed in the positioning hole.

[0006] Optionally, the height of the positioning groove is less than the height of the positioning seat.

[0007] Optionally, the positioning hole penetrates through the positioning seat.

[0008] Optionally, the sum of the height of the positioning hole and the height of the positioning groove is equal to the height of the positioning seat.

[0009] Optionally, the inner diameter of the positioning hole is equal to the outer diameter of the threaded end of the screw to be processed.

[0010] Optionally, the width of the positioning groove is equal to the width of the head of the screw to be processed.

[0011] Optionally, a fastening hole is provided on one side end of the positioning seat for the fastening screw to pass through; the fastening hole is communicated with the positioning hole.

[0012] Optionally, the positioning groove is a U-shaped structure.

[0013] Advantages of the Utility Model

[0014] The present utility model provides a screw fixing device, which comprises: a positioning seat, on which a positioning groove is provided; a positioning hole is provided in the positioning groove for a screw to be machined to penetrate; a fastening screw for pressing against the screw to be machined so that the head of the screw to be machined is fixed in the positioning groove and the threaded end is fixed in the positioning hole. By means of this device, the head of the screw to be machined can be stably fixed in the positioning groove and the threaded end can be stably fixed in the positioning hole; and the screw to be machined will not be damaged. Description of the Drawings

[0015] Figure 1 is a top view of a screw fixing device provided by an embodiment of the present utility model;

[0016] Figure 2 is a cross-sectional view of a screw fixing device provided by an embodiment of the present utility model;

[0017] Figure 3 is a structural schematic diagram of a screw to be machined provided by an embodiment of the present utility model.

[0018] Symbol Description:

[0019] Positioning seat - 1, positioning groove - 2, positioning hole - 3, fastening screw - 4, screw to be machined - 5. Detailed Embodiment

[0020] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings. Apparently, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] In the currently adopted processing technology, the turning process completes the processing except for the internal thread on the head end face. The benchwork process uses a three-jaw chuck to clamp the part to complete the processing of the internal thread on the end face. However, since the diameter of the threaded end of the part is only Φ3mm and the clamping force should not be too large, during the processing of the threaded hole on the head end face of the part, the part frequently rotates axially, affecting the processing efficiency and quality.

[0022] Therefore, the present utility model provides a screw fixing device that can fix the part and will not damage the part. Figure 1 is a top view of a screw fixing device provided by an embodiment of the present utility model; Figure 2 is a cross-sectional view of a screw fixing device provided by an embodiment of the present utility model;

[0023] Figure 3It is a schematic structural diagram of the screw 5 to be processed provided by an embodiment of the present utility model. As Figures 1 to 3 shown, the device includes:

[0024] 1. A positioning seat 1, on which a positioning groove 2 is provided; a positioning hole 3 is opened in the positioning groove 2 for the screw 5 to be processed to penetrate.

[0025] Specifically, a positioning groove 2 is provided downward on the top surface of the positioning seat 1. The positioning groove 2 is of a U-shaped structure, and the height of the positioning groove 2 is less than the height of the positioning seat 1.

[0026] A radial positioning hole 3 is opened at the bottom of the positioning groove 2. The positioning hole 3 penetrates through the positioning seat 1, so that a very long part to be processed can pass through the positioning hole 3; the sum of the height of the positioning hole 3 and the height of the positioning groove 2 is equal to the height of the positioning seat 1.

[0027] In the present utility model, the inner diameter of the positioning hole 3 is equal to the outer diameter of the threaded end of the screw 5 to be processed. The width of the positioning groove 2 is equal to the width of the head of the screw 5 to be processed.

[0028] Specifically, in an optional embodiment, the diameter of the threaded end of the screw 5 to be processed is Φ3mm. The inner diameter of the positioning hole 3 is adapted to the diameter of the threaded end of the screw 5 to be processed, so that the threaded end of the screw 5 to be processed can penetrate into the positioning hole 3; the width of the head of the screw 5 to be processed is 4.3mm, and the width of the positioning groove 2 is 4.3mm, so that the bottom end of the head of the screw 5 to be processed can be fixed in the positioning groove 2.

[0029] 2. A fastening screw 4, which is used to tighten the screw 5 to be processed so that the head of the screw 5 to be processed is fixed in the positioning groove 2 and the threaded end is fixed in the positioning hole 3.

[0030] Specifically, a fastening hole is provided at one side end of the positioning seat 1 for the fastening screw 4 to penetrate; the fastening hole communicates with the positioning hole 3.

[0031] During the specific use process, the fastening screw 4 is penetrated into the fastening hole, and the fastening screw 4 is tightened by hand until the fastening screw 4 tightens the screw 5 to be processed, restricting the up and down movement and left and right shaking of the screw 5 to be processed.

[0032] In the present utility model, after the screw 5 to be processed is fixed, a threaded hole is machined on the end face of the head of the screw 5 to be processed by a tapping machine. After the processing is completed, the fastening screw 4 is loosened, and the screw after machining the threaded hole is taken out.

[0033] In an optional embodiment, the positioning seat 1 is made of stainless steel.

[0034] The present utility model will be described below through a specific embodiment:

[0035] 1. Insert the threaded end of the screw 5 to be processed into the positioning hole 3 of the device;

[0036] 2. Rotate the screw 5 to be processed so that its head aligns with the positioning groove 2 and then insert it;

[0037] 3. Insert the fastening screw 4 into the fastening hole, and manually tighten the fastening screw 4 to make it press against the screw 5 to be processed, restricting the up-and-down movement and left-and-right sway of the screw 5 to be processed;

[0038] 4. Use a tapping machine to process a threaded hole on the head end face of the screw 5 to be processed;

[0039] 5. Loosen the fastening screw 4 and take out the screw after processing the threaded hole.

[0040] Advantages of the present utility model:

[0041] The present utility model provides a screw fixing device, which includes: a positioning seat 1, on which a positioning groove 2 is provided; a positioning hole 3 is opened in the positioning groove 2 for the screw 5 to be processed to pass through; a fastening screw 4 for pressing against the screw 5 to be processed so that the head of the screw 5 to be processed is fixed in the positioning groove 2 and the threaded end is fixed in the positioning hole 3. Through this device, the head of the screw 5 to be processed can be stably fixed in the positioning groove 2, and the threaded end can be stably fixed in the positioning hole 3; and the screw 5 to be processed will not be damaged.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A screw fixing device, characterized in that, Comprising: A positioning seat, on which a positioning groove is provided; a positioning hole is opened in the positioning groove for a screw to be machined to penetrate; A fastening screw for pressing against the screw to be machined so that the head of the screw to be machined is fixed in the positioning groove and the threaded end is fixed in the positioning hole.

2. The device according to claim 1, characterized in that: The height of the positioning groove is less than the height of the positioning seat.

3. The device according to claim 2, characterized in that: The positioning hole penetrates through the positioning seat.

4. The device according to claim 3, characterized in that: The sum of the height of the positioning hole and the height of the positioning groove is equal to the height of the positioning seat.

5. The device according to claim 3, characterized in that: The inner diameter of the positioning hole is equal to the outer diameter of the threaded end of the screw to be machined.

6. The device according to claim 1, characterized in that: The width of the positioning groove is equal to the width of the head of the screw to be machined.

7. The device according to claim 1, characterized in that: A fastening hole is provided at one side end of the positioning seat for the fastening screw to penetrate; the fastening hole communicates with the positioning hole.

8. The device according to claim 1, characterized in that: The positioning groove is of a U-shaped structure.

Images