Workpiece fixing device and lathe tool provided with same

Abstract

The utility model provides a workpiece fixing device and a lathe tool equipped with the workpiece fixing device, the workpiece fixing device comprises a fixing cylinder, the fixing cylinder is used for placing a workpiece, the side wall of the outer side of the fixing cylinder is equipped with a support sheet, a driving block is installed in the fixing cylinder, and when the driving block moves in the fixing cylinder, the support sheet is fixed on the support sheet. The driving block pushes the supporting piece to move in the direction away from the side wall of the fixing cylinder, a fixing column is movably installed in the fixing cylinder, the driving block is fixedly installed on the fixing column, the fixing column is provided with a connecting rod assembly, and the fixing column is connected with the fixing cylinder through the connecting rod assembly. The workpiece can be locked and fixed through the workpiece fixing device, the two ends of the cylindrical workpiece can be chamfered at the same time after the workpiece is fixed, the labor amount of workers is effectively reduced, time is saved, and the working efficiency is high. In conclusion, the lathe tool is reasonable in structure, easy to operate, high in efficiency after being used and suitable for application and popularization.

Description

Technical Field

[0001] The utility model belongs to the field of lathe equipment, and in particular relates to a workpiece fixing device and a lathe tooling equipped with the workpiece fixing device. Background Art

[0002] At present, when chamfering the ends of a cylindrical workpiece, one end of the cylindrical workpiece is generally fixed, and then the other end of the cylindrical workpiece is chamfered. After the operation is completed, the position is exchanged, the chamfered end is fixed, and then the unchamfered end is chamfered. This operation is time-consuming and labor-intensive, and is not conducive to improving work efficiency.

[0003] Therefore, in view of the shortcomings of the above solution in actual production and implementation, a workpiece fixing device and a lathe tool equipped with the workpiece fixing device are provided to solve the above technical problems. Utility Model Content

[0004] The utility model provides a workpiece fixing device and a lathe tool equipped with the workpiece fixing device, which solves the problems in the prior art.

[0005] The technical solution of the present utility model is achieved as follows: a workpiece fixing device includes a fixed cylinder, the fixed cylinder is used to place the workpiece, a support piece is installed on the outer side wall of the fixed cylinder, a driving block is installed in the fixed cylinder, when the driving block moves in the fixed cylinder, the driving block pushes the support piece to move in the direction away from the side wall of the fixed cylinder, a fixed column is movably installed in the fixed cylinder, the driving block is fixedly installed on the fixed column, and a connecting rod assembly is installed on the fixed column. After the workpiece is installed, it is supported and fixed by the support piece and then limited by the connecting rod assembly.

[0006] As a preferred embodiment, the support piece is arc-shaped, and the support piece matches the shape of the side wall of the fixed cylinder. There are multiple support pieces axially arranged on the side wall of the fixed cylinder, and elastic components are installed between the multiple support pieces. After the support piece moves in the direction away from the fixed cylinder, it returns to its original position through the elastic component.

[0007] As a preferred embodiment, the driving block is conical, the end of the driving block is fixedly connected to the fixed column, the inner wall of the support piece is provided with a guide block, the guide block is cooperated with the driving block, and when the driving block moves along the fixed cylinder, the support piece is supported by the guide block.

[0008] As a preferred embodiment, at least two groups of the support plates are provided on the fixed cylinder, and the driving blocks are provided corresponding to the support plates.

[0009] As a preferred embodiment, the connecting rod assembly includes a first connecting rod movably connected to the fixed column, one end of the first connecting rod is movably connected to the second connecting rod, and the end of the second connecting rod is rotatably connected to the fixed cylinder.

[0010] As a preferred embodiment, the fixed column is fixedly installed with a connecting block, one end of the first connecting rod is movably connected to the connecting block, the other end of the first connecting rod is movably connected to the second connecting rod, and the end of the second connecting rod away from the connection with the first connecting rod is movably connected to the fixed tube through a hinge column.

[0011] A lathe tool is characterized by being equipped with the above-mentioned workpiece fixing device.

[0012] As a preferred embodiment, the lathe includes a jaw plate, a positioning assembly and a turning tool assembly. One end of the workpiece fixing device is fixedly connected to the jaw plate, and the other end is installed on the positioning assembly.

[0013] As a preferred embodiment, the lathe includes a fixed slide rail, the positioning assembly includes a mounting frame slidably mounted on the slide rail, a cylinder is fixedly mounted on the mounting frame, two positioning rods are movably mounted on the mounting frame, rollers are rotatably mounted on the ends of the two positioning rods, the cylinder includes an output shaft, the output shaft is movably connected to the positioning rod, and when the output shaft moves along the mounting frame, the positioning rods move away from the ends connected to the output shaft and approach each other to clamp the fixed cylinder.

[0014] As a preferred embodiment, the mounting frame includes a first side plate and a second side plate, the cylinder is fixedly mounted on the first side plate, the cylinder output shaft passes through the first side plate, a third connecting rod is fixedly mounted on the output shaft, and both ends of the third connecting rod are respectively rotatably connected to the end of the positioning rod.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are as follows: the present invention discloses a workpiece fixing device and a lathe tool equipped with the workpiece fixing device, wherein the workpiece can be locked and fixed by the workpiece fixing device, and after being fixed, both ends of the cylindrical workpiece can be chamfered at the same time, effectively reducing the workload of the staff, saving time, and improving work efficiency. In summary, the present lathe tool has a reasonable structure, simple operation, high efficiency after use, and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a schematic structural diagram of Example 1 of the present utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the fixed cylinder in Example 1 of the present utility model;

[0019] Figure 3 This is a schematic diagram of the partial structure of Example 1 of the present utility model;

[0020] Figure 4 This is a schematic cross-sectional view of Example 1 of the present utility model;

[0021] Figure 5 This is a schematic diagram of the partial structure of Example 1 of the present utility model;

[0022] Figure 6 This is a schematic diagram of the support structure of Example 1 of the present utility model;

[0023] Figure 7 This is a schematic structural diagram of Example 2 of the present utility model;

[0024] Figure 8 This is a schematic structural diagram of Example 2 of the present utility model;

[0025] In the figure, 1. fixing cylinder; 101. first fixing part; 102. connecting rod part; 103. middle part; 104. second fixing part; 105. supporting part; 106. slide groove; 107. fixing hole; 108. limiting groove; 2. supporting plate; 201. placement groove; 202. guide block; 3. connecting rod assembly; 301. connecting block; 302. first connecting rod; 303. second connecting rod; 304. hinge column; 4. fixing column; 5. driving block; 6. connecting column; 7. spring ring; 8. claw plate; 9. mounting frame; 901. first side plate; 902. output shaft; 903. third connecting rod; 904. fourth connecting rod; 905. positioning rod; 906. second side plate; 907. roller; 10. turning tool. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1: Figures 1 to 6As shown, a workpiece fixing device includes a fixed cylinder 1, which is used to place the workpiece. A support piece 2 is installed on the outer side wall of the fixed cylinder 1, and a driving block 5 is installed in the fixed cylinder 1. When the driving block 5 moves in the fixed cylinder 1, the driving block 5 pushes the support piece 2 to move in the direction away from the side wall of the fixed cylinder 1. A fixed column 4 is movably installed in the fixed cylinder 1, and the driving block 5 is fixedly installed on the fixed column 4. The fixed column 4 is installed with a connecting rod assembly 3. After the workpiece is installed, it is supported and fixed by the support piece 2 and then limited by the connecting rod assembly 3.

[0028] The support piece 2 is arc-shaped and matches the shape of the side wall of the fixed cylinder 1. There are multiple support pieces 2 axially arranged on the side wall of the fixed cylinder 1. Elastic components are installed between the multiple support pieces 2. After the support piece 2 moves in the direction away from the fixed cylinder 1, it returns to its position through the elastic component.

[0029] Specifically, the elastic component is a spring ring 7 , a placement groove 201 is provided on the side wall of the fixing tube 1 , and the spring ring 7 is installed in the placement groove 201 .

[0030] The driving block 5 is conical, and the end of the driving block 5 is fixedly connected to the fixed column 4. A guide block 202 is provided on the inner wall of the support piece 2. The guide block 202 is arranged in cooperation with the driving block 5. When the driving block 5 moves along the fixed cylinder 1, the support piece 2 is supported by the guide block 202.

[0031] Two groups of support pieces 2 are provided on the fixed cylinder 1, and the driving blocks 5 are provided corresponding to the support pieces 2. Each group of support pieces includes three support pieces.

[0032] Two driving blocks are provided, and the two driving blocks 5 are connected and fixed by a connecting column 6 .

[0033] The connecting rod assembly 3 includes a first connecting rod 302 movably connected to the fixed column 4 , one end of the first connecting rod 302 is movably connected to the second connecting rod 303 , and the end of the second connecting rod 303 is rotatably connected to the fixed cylinder 1 .

[0034] The fixing column 4 is fixedly installed with a connecting block 301, one end of the first connecting rod 302 is movably connected to the connecting block 301, the other end of the first connecting rod 302 is movably connected to the second connecting rod 303, and the end of the second connecting rod 303 away from the connection with the first connecting rod 302 is movably connected to the fixing tube 1 through a hinge column 304.

[0035] Specifically, a fixing hole is provided on the side wall of the fixing cylinder 1 , and the hinge column 304 is rotatably installed in the fixing hole.

[0036] Specifically, the fixed cylinder 1 includes a first fixing portion 101, a connecting rod portion 102, a supporting portion 105, an intermediate portion 103 and a positioning portion, wherein the connecting rod portion 102 is provided with a limiting groove 108, and the limiting groove 108 corresponds to the position of the first connecting rod 302 and the second connecting rod 303. When the fixed column 4 moves along the fixed cylinder 1, the first connecting rod 302 and the second connecting rod 303 are exposed from the limiting groove 108 or retracted into the limiting groove 108.

[0037] The supporting portion 105 is provided with a sliding groove 106 . The sliding groove 106 corresponds to the position of the guide block 202 . The guide block 202 is slidably installed in the sliding groove 106 .

[0038] Example 2: Figures 6 to 8 As shown, a lathe tool is equipped with the above-mentioned workpiece fixing device.

[0039] The lathe comprises a jaw plate 8, a positioning assembly and a turning tool 10 assembly. One end of the workpiece fixing device is fixedly connected to the jaw plate 8, and the other end is mounted on the positioning assembly.

[0040] Specifically, the jaw plate 8 is rotatably installed on one side of the lathe, and the turning tool 10 assembly is located between the jaw plate 8 and the positioning assembly. The turning tool 10 assembly can move toward or away from the jaw plate 8 and the positioning assembly. The turning tool 10 assembly includes two relatively movable turning tools 10.

[0041] The lathe includes a fixed slide rail, and the positioning assembly includes a mounting frame 9 slidably mounted on the slide rail, a cylinder is fixedly mounted on the mounting frame 9, two positioning rods 905 are movably mounted on the mounting frame 9, and rollers 907 are rotatably mounted on the ends of the two positioning rods 905. The cylinder includes an output shaft 902, and the output shaft 902 is movably connected to the positioning rod 905. When the output shaft 902 moves along the mounting frame 9, the positioning rod 905 moves away from the ends connected to the output shaft 902 and approaches each other to clamp the fixed cylinder 1.

[0042] Specifically, a third connecting rod 903 is fixedly mounted on the end of the output shaft 902 , and both ends of the third connecting rod 903 are movably connected to the positioning rod 905 through a fourth connecting rod 904 .

[0043] Specifically, the positioning rod 905 is mounted on the mounting frame 9 in a hinged manner.

[0044] Specifically, a first movable block and a second movable block are provided at the bottom of the mounting frame 9, a space is left between the first movable block and the second movable block, the slide rail is located between the first movable block and the second movable block, the mounting frame 9 is fixedly connected to the first movable block, and threaded columns are installed on the first movable block and the second movable block, and the first movable block, the second movable block and the slide rail can be locked and fixed by the threaded columns.

[0045] The mounting frame 9 includes a first side plate 901 and a second side plate 906. The cylinder is fixedly mounted on the first side plate 901. The cylinder output shaft 902 passes through the first side plate 901. The output shaft 902 is fixedly mounted with a third connecting rod 903. The two ends of the third connecting rod 903 are respectively rotatably connected to the ends of the positioning rod 905.

[0046] The workpiece is a cylindrical workpiece. This workpiece fixture is used to fix the cylindrical workpiece and then chamfer the inner wall of the end of the cylindrical workpiece through the cutter assembly of the lathe tooling. The fixing column is pushed by the cylinder and other components to move in the fixture. The cutter assembly is installed on the tool holder. The specific process is as follows:

[0047] Before use, fix the first fixing part 101 of the workpiece fixing device of the support piece 2 through the claw plate 8, move the fixing column 4, and expose the first connecting rod 302 to the limit groove 108. At this time, the side walls of the fixed cylinder 1 are fitted together, and the cylindrical workpiece is put on the workpiece fixing device. The first connecting rod 302 can play a positioning role for the workpiece, and then fix the column 4, the support piece 2 is lifted to fix the workpiece, and at the same time, the first connecting rod 302 enters the cylinder.

[0048] Then move the positioning assembly so that the end of the fixed cylinder 1 away from the claw plate 8 is located between the ends of the two positioning rods 905. By operating the cylinder, the ends of the two positioning rods 905 clamp the cylinder. In this way, the two ends of the fixed cylinder 1 are fixed and can only rotate, which can ensure the stability of the cylindrical workpiece during chamfering operations.

[0049] Finally, the cutter assembly moves to a position corresponding to the cylindrical workpiece, and the two cutters move to the two ends of the cylindrical workpiece. When the claw disk 8 rotates, the inner wall of the end of the cylindrical workpiece can be chamfered.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A workpiece fixing device, characterized in that: The invention comprises a fixed cylinder (1), wherein the fixed cylinder (1) is used for placing a workpiece, a support piece (2) is installed on the outer side wall of the fixed cylinder (1), a driving block (5) is installed in the fixed cylinder (1), and when the driving block (5) moves in the fixed cylinder (1), the driving block (5) pushes the support piece (2) to move in a direction away from the side wall of the fixed cylinder (1), a fixed column (4) is movably installed in the fixed cylinder (1), the driving block (5) is fixedly installed on the fixed column (4), a connecting rod assembly (3) is installed on the fixed column (4), and the fixed column (4) is connected to the fixed cylinder (1) through the connecting rod assembly (3).

2. A workpiece fixing device according to claim 1, characterized in that: The support piece (2) is arc-shaped, and the support piece (2) matches the shape of the side wall of the fixed cylinder (1). A plurality of the support pieces (2) are axially arranged on the side wall of the fixed cylinder (1), and elastic components are installed between the plurality of support pieces (2). After the support piece (2) moves in a direction away from the fixed cylinder (1), it returns to its original position through the elastic component.

3. A workpiece fixing device according to claim 1, characterized in that: The driving block (5) is conical, and the end of the driving block (5) is fixedly connected to the fixed column (4). The inner wall of the support piece (2) is provided with a guide block (202). The guide block (202) is arranged in cooperation with the driving block (5). When the driving block (5) moves along the fixed cylinder (1), the support piece (2) is supported by the guide block (202).

4. A workpiece fixing device according to claim 3, characterized in that: At least two groups of the support pieces (2) are provided on the fixed cylinder (1), and the driving blocks (5) are provided corresponding to the support pieces (2).

5. A workpiece fixing device according to claim 1, characterized in that: The connecting rod assembly (3) comprises a first connecting rod (302) movably connected to a fixed column (4); one end of the first connecting rod (302) is movably connected to a second connecting rod (303); and the end of the second connecting rod (303) is rotatably connected to the fixed cylinder (1).

6. A workpiece fixing device according to claim 5, characterized in that: The fixing column (4) is fixedly mounted with a connecting block (301); one end of the first connecting rod (302) is movably connected to the connecting block (301); the other end of the first connecting rod (302) is movably connected to the second connecting rod (303); and the end of the second connecting rod (303) away from the end connected to the first connecting rod (302) is movably connected to the fixing cylinder (1) via a hinge column (304).

7. A lathe tool, characterized in that: A workpiece fixing device according to any one of claims 1 to 6 is installed.

8. A lathe tool according to claim 7, characterized in that: The lathe comprises a clamping claw plate (8), a positioning assembly and a turning tool (10) assembly; one end of the workpiece fixing device is fixedly connected to the clamping claw plate (8), and the other end is mounted on the positioning assembly.

9. The lathe tool according to claim 8, characterized in that: The lathe comprises a fixed slide rail, the positioning assembly comprises a mounting frame (9) slidably mounted on the slide rail, a cylinder is fixedly mounted on the mounting frame (9), two positioning rods (905) are movably mounted on the mounting frame (9), rollers (907) are rotatably mounted on the ends of the two positioning rods (905), the cylinder comprises an output shaft (902), the output shaft (902) is movably connected to the positioning rods (905), and when the output shaft (902) moves along the mounting frame (9), the positioning rods (905) move away from the ends connected to the output shaft (902) and approach each other to clamp the fixed cylinder (1).

10. The lathe tool according to claim 9, characterized in that: The mounting frame (9) includes a first side plate (901) and a second side plate (906), the cylinder is fixedly mounted on the first side plate (901), the cylinder output shaft (902) passes through the first side plate (901), a third connecting rod (903) is fixedly mounted on the output shaft (902), and both ends of the third connecting rod (903) are rotatably connected to the ends of the positioning rod (905) respectively.

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