Auxiliary fixing tool for end face turning of vibrating screen connecting pipe

Abstract

The utility model discloses a kind of vibration screen connecting pipe end face turning auxiliary fixing tool, including first conical tool and second conical tool, the first conical tool is in turn clamping section, abutting ring, transition section and first taper face along axial direction, the outer diameter of the first taper face gradually decreases along the direction away from the transition section, the outer diameter of the abutting ring is greater than the outer diameter of the clamping section, the second conical tool is in turn second taper face and cylindrical section along axial direction, the outer diameter of the second taper face gradually decreases along the direction away from the cylindrical section, the axial center of the second conical tool is provided with the tailstock center hole matched with the outer shape of horizontal lathe tailstock center. This tool clamping speed is fast, and use range is wide, can ensure that flange end face is processed flat, reduces processing error, improves processing efficiency and stability, reduces production cost, with extensive market application prospect.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, specifically to an auxiliary fixing fixture for turning the end face of a vibrating screen connecting pipe. Background Technology

[0002] Vibrating screens, as a commonly used screening equipment, play an important role in many industries such as mining, chemical, building materials, and grain. The connecting pipe of the vibrating screen (hereinafter referred to as the connecting pipe) is one of the key components of the vibrating screen, and the machining accuracy of its flange end face directly affects the assembly quality and working performance of the vibrating screen.

[0003] In existing technologies, the flange end face of a connecting pipe is typically machined using a traditional clamping method. The operator clamps one end of the connecting pipe onto the chuck of a horizontal lathe, while the other end, unable to accommodate the tailstock's center, is suspended by a hoist. However, this clamping and correction method has several problems: First, the other end of the connecting pipe lacks rigid positioning, resulting in extremely low clamping and correction efficiency. Furthermore, the workpiece is prone to wobbling during flange machining, leading to excessive coaxiality and non-perpendicularity between the flange end face and the pipe body axis, severely impacting the overall machining efficiency and accuracy. Second, due to vibration at the hoisted end, the operator must frequently pause machining to check the flatness and dimensional accuracy of the flange end face, preventing workpiece scrap due to increased deviations. This "machining-pause-inspection" cycle significantly extends the machining time per piece. If accuracy deviations are found, the hoisting position or chuck clamping force must be readjusted, further increasing rework costs. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary fixing fixture for machining the end face of the connecting pipe of a vibrating screen in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, the following technical solution is adopted: A turning auxiliary fixing fixture for the end face of a vibrating screen connecting pipe includes a first conical fixture and a second conical fixture. The first conical fixture consists of a clamping section, an abutment ring, a transition section, and a first conical surface along the axial direction. The outer diameter of the first conical surface gradually decreases in the direction away from the transition section. The outer diameter of the abutment ring is larger than the outer diameter of the clamping section. The second conical fixture consists of a second conical surface and a cylindrical section along the axial direction. The outer diameter of the second conical surface gradually decreases in the direction away from the cylindrical section. A center hole matching the shape of the tailstock center of a horizontal lathe is provided at the axis of the second conical fixture.

[0006] As a preferred technical solution, the first conical tool and the second conical tool are made of 45 steel.

[0007] As a preferred technical solution, a through hole is provided at the center of the first tapered tool.

[0008] As a preferred technical solution, the outer diameter of the abutment ring is larger than the outer diameter of the transition section.

[0009] As a preferred technical solution, the inner wall of the tip hole is provided with a wear-resistant coating.

[0010] As a preferred technical solution, the wear-resistant coating is made of ceramic and has a thickness of 0.1-0.5 mm.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: This invention uses two conical fixtures to quickly clamp the connecting pipe, eliminating the need for complex individual calibration of each connecting pipe. This significantly shortens the overall processing cycle and meets the needs of mass production of connecting pipes. Furthermore, the conical bevel design of the fixtures allows for the adaptation of various types of vibrating screen connecting pipes. By adjusting the distance between the tailstock of the horizontal lathe and the four-jaw chuck, different lengths of connecting pipes can be accommodated. There is no need to design and manufacture separate fixtures for different models and sizes of connecting pipes. The fixture has a simple structure, is easy to manufacture and maintain, reduces production costs, and has broad market application prospects. Attached Figure Description

[0012] Figure 1 The diagram shows the working state of the first and second conical fixtures of this utility model after they are installed on a horizontal lathe. Figure 2 An isometric view of the first conical tooling of this utility model is shown; Figure 3 An isometric view of the second conical tooling of this utility model is shown; Figure 4 The top view and the cross-sectional view at AA of the second conical tool of this utility model are shown; Figure 5 The diagram shows a top view and a cross-sectional view at point AA of the first conical tool of this invention.

[0013] Legend: 1. First conical fixture; 101. Clamping section; 102. Abutment ring; 103. Transition section; 104. First conical surface; 105. Through hole; 2. Second conical fixture; 201. Cylindrical section; 202. Second conical surface; 203. Center hole; 3. Three-jaw chuck; 4. Horizontal lathe tailstock. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0015] Example 1 As shown in the figure, this embodiment discloses an auxiliary fixing fixture for turning the end face of a vibrating screen connecting pipe, including a first conical fixture 1 and a second conical fixture 2. The first conical fixture 1 consists of a clamping section 101, an abutment ring 102, a transition section 103, and a first conical surface 104 in sequence along the axial direction. The outer diameter of the first conical surface 104 gradually decreases in the direction away from the transition section 103. The outer diameter of the abutment ring 102 is larger than the outer diameter of the clamping section 101. The second conical fixture 2 consists of a second conical surface 202 and a cylindrical section 201 in sequence along the axial direction. The outer diameter of the second conical surface 202 gradually decreases in the direction away from the cylindrical section 201. A center hole 203 matching the shape of the center of the tailstock of a horizontal lathe is provided at the axis of the second conical fixture 2.

[0016] The usage principle and operation process of this embodiment are as follows: First, install the first tapered fixture 1 onto the three-jaw chuck 3 of the horizontal lathe. The three-jaw chuck 3 clamps the clamping section 101 of the first tapered fixture 1, ensuring it abuts against the abutment ring 102 of the first tapered fixture 1. After installation, lock the jaws of the three-jaw chuck 3. Next, install the second tapered fixture 2. Fit the center hole 203 of the second tapered fixture 2 onto the tailstock center of the horizontal lathe, ensuring the second tapered fixture 2 is securely installed. Then, insert one end of the vibrating screen connecting pipe into the first conical surface 104 of the first conical fixture 1 and abut against the first conical surface 104. Then, move the tailstock of the horizontal lathe so that the second conical surface 202 of the second conical fixture 2, which is fitted on the top of the tailstock, abuts against the other end of the vibrating screen connecting pipe. Continue to adjust the tailstock, and use the two conical fixtures to tighten both ends of the vibrating screen connecting pipe to ensure that the vibrating screen connecting pipe will not shake or slide, thereby ensuring the machining accuracy of the flange end faces at both ends of the vibrating screen connecting pipe. When it is necessary to process connecting pipes of different models or sizes, simply loosen the fixing bolts of the tailstock, move the tailstock to the appropriate position, adjust the distance between the tailstock and the three-jaw chuck 3, and then operate according to the above clamping steps. There is no need to change the conical fixture.

[0017] Example 2 As shown in the figure, this embodiment is based on Embodiment 1. Specifically, the first conical tool 1 and the second conical tool 2 are made of 45 steel. 45 steel has good comprehensive mechanical properties and can withstand the radial and axial forces generated by the tooling when positioning, clamping or assisting in forming the workpiece, thus preventing the tooling from deforming or breaking due to insufficient strength and ensuring the stability of the processing.

[0018] Example 3 As shown in the figure, this embodiment is based on the first embodiment. Specifically, a through hole 105 is provided at the center of the first tapered tool 1.

[0019] Example 4 As shown in the figure, this embodiment is based on Embodiment 1. Specifically, the outer diameter of the abutment ring 102 is larger than the outer diameter of the transition section 103. Therefore, when the three-jaw chuck 3 is improperly clamped onto the abutment ring 102 by the user, it will not damage the surface of the transition section 103.

[0020] Example 5 As shown in the figure, this embodiment is based on Embodiment 1. Specifically, the inner wall of the tip hole 203 is provided with a wear-resistant coating. The tip hole 203 is a key hole structure for the second conical tool 2 to mate with the lathe tailstock. During use, the tip and the inner wall of the tip hole 203 will generate continuous sliding or rolling friction. Long-term friction can easily lead to wear of the inner wall. Providing a wear-resistant coating on the inner wall of the tip hole 203 can improve the service life of the second conical tool 2.

[0021] Furthermore, the wear-resistant coating is made of ceramic and has a thickness of 0.1-0.5 mm. Ceramic was chosen as the coating material because it possesses extremely high hardness and wear resistance, good high-temperature resistance and chemical stability, and a low coefficient of friction.

[0022] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tooling for auxiliary fixing during machining the end face of a vibrating screen connecting pipe, characterized in that: The fixture includes a first conical fixture (1) and a second conical fixture (2). The first conical fixture (1) consists of a clamping section (101), an abutment ring (102), a transition section (103), and a first conical surface (104) in sequence along the axial direction. The outer diameter of the first conical surface (104) gradually decreases in the direction away from the transition section (103). The outer diameter of the abutment ring (102) is larger than the outer diameter of the clamping section (101). The second conical fixture (2) consists of a second conical surface (202) and a cylindrical section (201) in sequence along the axial direction. The outer diameter of the second conical surface (202) gradually decreases in the direction away from the cylindrical section (201). A center hole (203) matching the shape of the tailstock center of the horizontal lathe is provided at the axis of the second conical fixture (2).

2. The auxiliary fixing fixture for machining the end face of the vibrating screen connecting pipe according to claim 1, characterized in that: The first conical tool (1) and the second conical tool (2) are made of 45 steel.

3. The auxiliary fixing fixture for machining the end face of the vibrating screen connecting pipe according to claim 1, characterized in that: The first tapered tool (1) has a through hole (105) at its axis.

4. The auxiliary fixing fixture for machining the end face of the vibrating screen connecting pipe according to claim 1, characterized in that: The outer diameter of the abutment ring (102) is larger than the outer diameter of the transition section (103).

5. The auxiliary fixing fixture for turning the end face of the vibrating screen connecting pipe according to claim 1, characterized in that: The inner wall of the top hole (203) is provided with a wear-resistant coating.

6. The auxiliary fixing fixture for turning the end face of the vibrating screen connecting pipe according to claim 5, characterized in that: The wear-resistant coating is made of ceramic and has a thickness of 0.1-0.5 mm.

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