Dumbbell sampling machine

Abstract

The utility model relates to the field of sampling machines, in particular to a dumbbell sampling machine which comprises a machining platform, a bottom plate, a clamping mechanism arranged on the bottom plate, a special-shaped guide rail arranged on the bottom plate, a cutter, a driving mechanism used for driving the cutter to move along the special-shaped guide rail and a fixing mechanism used for fixing the bottom plate. The fixing mechanism comprises a plurality of limiting blocks of L-shaped structures, electric telescopic rods connected with the limiting blocks, a plurality of fixing grooves formed in the top of the bottom plate, mounting grooves formed in the machining platform and a plurality of mounting holes, the bottom plate is connected with the mounting grooves in a clamped mode, and the electric telescopic rods are arranged in the mounting holes. The limiting blocks are connected with the fixing grooves in a clamped mode. The clamping mechanism and the special-shaped guide rail can be replaced at the same time by replacing the bottom plate, and the replacement process of the bottom plate is easy to operate, so that the machining efficiency of dumbbell splines is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This application relates to the field of prototyping machines, and more particularly to a dumbbell prototyping machine. Background Technology

[0002] Tensile testing can determine a series of strength and plasticity indicators of a material. Strength generally refers to the material's ability to resist elastic deformation, plastic deformation, and fracture under external force. Before being put into actual production, tunnel segment materials usually need to undergo tensile testing to check their performance and whether they are qualified. During the sampling process of tunnel segments, the segments need to be fixed on a fixture. The operator holds the fixture and aligns it with the cutting tool, which cuts the segments to shape them into dumbbells. The dumbbell-shaped segments are then placed in a testing machine for tensile and other mechanical tests.

[0003] The process of moving the machine tool using a hand-held fixture results in high labor intensity for the workers. To reduce this, a shaped guide rail is currently used to limit the tool's movement, and a drive mechanism moves the tool along the guide rail to machine the tube segment into a dumbbell shape. However, both the shaped guide rail and the fixture are only suitable for one specification. When different specifications of dumbbell-shaped strips need to be machined, the fixture and guide rail must be disassembled and replaced. Since the fixture and guide rail are bolted to the machining platform, the replacement process is cumbersome, reducing the machining efficiency of the dumbbell strips and increasing the labor intensity for the workers. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a dumbbell prototype manufacturing machine.

[0005] This application provides a dumbbell prototyping machine, which adopts the following technical solution:

[0006] A dumbbell prototyping machine includes a processing platform, a base plate, a clamping mechanism disposed on the base plate, a shaped guide rail disposed on the base plate, a cutting tool, a driving mechanism for driving the cutting tool to move along the shaped guide rail, and a fixing mechanism for fixing the base plate; the fixing mechanism includes multiple L-shaped limiting blocks, an electric telescopic rod connected to the limiting blocks, multiple fixing grooves disposed on the top of the base plate, a mounting groove disposed on the processing platform, and multiple mounting holes, wherein the base plate is engaged with the mounting groove, the electric telescopic rod is disposed in the mounting hole, and the limiting blocks are engaged with the fixing groove.

[0007] By adopting the above technical solution, when processing dumbbell templates of different models, the limiting block is raised by an electric telescopic rod, causing it to separate from the fixing groove. Then, the base plate is removed from the mounting groove, allowing for the disassembly of the clamping mechanism and the irregular-shaped guide rail. Alternatively, the clamping mechanism and the irregular-shaped guide rail can be installed by placing the base plate into the mounting groove and then engaging the limiting block with the fixing groove using the electric telescopic rod. Replacing the base plate allows for the simultaneous replacement of both the clamping mechanism and the irregular-shaped guide rail. Furthermore, the installation and disassembly process of the base plate is simple, thereby improving the processing efficiency of dumbbell templates and reducing the labor intensity of workers.

[0008] Preferably, the driving mechanism includes a drive motor mounted on the machining platform, a limiting groove formed on the machining platform, a ball screw disposed in the limiting groove, a first limiting slider, a limiting telescopic rod, and a guide slider; one end of the ball screw is fixedly connected to the drive shaft of the drive motor, and the other end is rotatably connected to the machining platform; the first limiting slider is threadedly connected to the ball screw and slidably connected to the limiting groove; one end of the limiting telescopic rod is connected to the first limiting slider, and the other end is connected to the cutting tool; the guide slider is disposed on the side of the limiting telescopic rod near the cutting tool, and the guide slider is slidably connected to the irregular guide rail.

[0009] By adopting the above technical solution, the drive motor drives the ball screw to rotate, and the ball screw drives the first limit slider to slide in the limit groove. The first limit slider is connected to the tool through the limit telescopic rod. During the movement of the first limit slider, the guide slider slides in the irregular guide rail, thereby causing the limit telescopic rod to drive the tool to move along the irregular guide rail, and thus causing the tool to process the tube into a dumbbell strip.

[0010] Preferably, the limiting telescopic rod includes a fixed tube and a sliding rod, the sliding rod is slidably connected to the fixed tube, one end of the fixed tube is connected to the first limiting slider, the end of the sliding rod away from the fixed tube is connected to the cutter, a limiting groove is formed on the inner wall of the fixed tube, and a second limiting slider is provided at the end of the sliding rod away from the cutter, the second limiting slider is slidably connected to the limiting groove.

[0011] By adopting the above technical solution, when the guide slider slides in the irregular guide rail, the guide slider drives the sliding rod to slide in the fixed tube, thereby causing the tool to move along the irregular guide rail, and thus the tool to process the tube into a dumbbell-shaped strip.

[0012] Preferably, there are multiple limiting grooves and multiple second limiting sliders. The multiple limiting grooves are arranged in a circumferential array on the inner wall of the fixed tube, and the multiple second limiting sliders are arranged in a circumferential array on the outer side of the sliding rod.

[0013] By adopting the above technical solution, the arrangement of multiple second limiting sliders and multiple limiting grooves improves the connection stability between the sliding rod and the fixed tube, thereby improving the stability of the limiting telescopic rod driving the tool to move, and thus improving the processing quality of the tube segment by the tool.

[0014] Preferably, the clamping mechanism includes a bottom clamp connected to the base plate, a mounting bracket disposed on the bottom clamp, a limiting rod disposed on the mounting bracket, an adjusting screw threadedly connected to the mounting bracket, and a top clamp. The top clamp has a connecting hole, the limiting rod passes through the connecting hole and is slidably connected to the top clamp, one end of the adjusting screw is rotatably connected to the top clamp, and the other end is connected to a handle.

[0015] By adopting the above technical solution, the adjusting screw can be rotated by turning the handle, the limiting rod limits the top clamp, and the adjusting screw drives the top clamp to rise and fall, thereby realizing the clamping or releasing of the tube segment to be processed.

[0016] Preferably, the bottom clamp includes a base fixedly connected to the base plate, a central shaft disposed in the middle of the base, an adjusting seat rotatably connected to the central shaft, and a limiting component for limiting the adjusting seat, wherein the mounting bracket is disposed on the side of the adjusting seat away from the base.

[0017] By adopting the above technical solution, the limiting component can limit and fix the adjusting seat, thereby allowing the cutting tool to process the clamped and fixed tube segment. After one side of the tube segment is processed, the limiting component releases the limiting of the adjusting seat, then the adjusting seat is rotated 180°, and the limiting component limits the adjusting seat again, so that the other side of the tube segment can be processed. The operation process is simple and convenient, further improving the processing efficiency of dumbbell splines and reducing the labor intensity of workers.

[0018] Preferably, the limiting component includes a first limiting hole on the base, a second limiting hole on the adjusting seat, and a limiting pin, wherein the limiting pin is inserted into the first limiting hole and the second limiting hole.

[0019] By adopting the above technical solution, the limiting pin can be inserted into the first limiting hole and the second limiting hole to limit the adjustment seat. By removing the limiting pin from the first limiting hole and the second limiting hole, the adjustment seat can be rotated, which facilitates the processing of the other side of the tube segment.

[0020] Preferably, there are multiple limiting components, which are symmetrically distributed on both sides of the bottom clamp.

[0021] By adopting the above technical solution, multiple limiting components improve the limiting effect on the adjusting seat, thereby improving the connection stability between the adjusting seat and the base, and further improving the clamping effect of the clamping mechanism on the tube segment.

[0022] In summary, this application has the following beneficial technical effects:

[0023] 1. This application allows for the simultaneous replacement of the clamping mechanism and the irregular guide rail by changing the base plate. The replacement process is simple and convenient, thereby improving the processing efficiency of dumbbell templates of different models and reducing the labor intensity of workers.

[0024] 2. This application allows the adjusting seat to be rotated by removing the limiting pin, thus facilitating the processing of the other side of the tube segment. The operation is simple and convenient, further improving the processing efficiency of dumbbell-shaped strips and further reducing the labor intensity of workers. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the dumbbell prototyping machine provided in the embodiments of this application;

[0026] Figure 2 This is a partial cross-sectional structural diagram of the fixing mechanism, base plate, and processing platform provided in the embodiments of this application;

[0027] Figure 3 This is a partial cross-sectional structural diagram of the drive mechanism and cutting tool provided in the embodiments of this application;

[0028] Figure 4 This is a cross-sectional structural diagram of the clamping mechanism and base plate provided in the embodiments of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Machining platform; 2. Base plate; 3. Clamping mechanism; 31. Bottom clamp; 311. Base; 312. Central shaft; 313. Adjusting seat; 32. Mounting bracket; 33. Limiting rod; 34. Adjusting screw; 35. Top clamp; 36. Connecting hole; 37. Handle; 38. Limiting assembly; 381. First limiting hole; 382. Second limiting hole; 383. Limiting pin; 4. Irregularly shaped guide rail 5. Cutting tool; 6. Drive mechanism; 61. Drive motor; 62. Limiting groove; 63. Ball screw; 64. First limiting slider; 65. Limiting telescopic rod; 651. Fixing tube; 652. Sliding rod; 653. Limiting groove; 654. Second limiting slider; 66. Guide slider; 7. Fixing mechanism; 71. Limiting block; 72. Electric telescopic rod; 73. Fixing groove; 74. Mounting groove; 75. Mounting hole. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0031] This application discloses a dumbbell prototype manufacturing machine.

[0032] Reference Figure 1 , Figure 2 and Figure 3 A dumbbell prototyping machine includes a processing platform 1, a base plate 2, a clamping mechanism 3 mounted on the base plate 2, a shaped guide rail 4 on the base plate 2, a cutting tool 5, a driving mechanism 6 for moving the cutting tool 5 along the shaped guide rail 4, and a fixing mechanism 7 for fixing the base plate 2. The fixing mechanism 7 includes two L-shaped limiting blocks 71, an electric telescopic rod 72 fixedly connected to the limiting blocks 71, two fixing grooves 73 on the top of the base plate 2, a mounting groove 74 on the processing platform 1, and two mounting holes 75. The base plate 2 is engaged with the mounting grooves 74, the electric telescopic rod 72 is disposed in the mounting holes 75 and fixedly connected to the processing platform 1, and the limiting blocks 71 are engaged with the fixing grooves 73. The two fixing grooves 73 are symmetrically distributed on opposite sides of the base plate 2, and the two mounting holes 75 are symmetrically distributed on opposite sides of the mounting grooves 74.

[0033] The drive mechanism 6 includes a drive motor 61 fixedly mounted on the machining platform 1, a limiting groove 62 formed on the machining platform 1, a ball screw 63 disposed in the limiting groove 62, a first limiting slider 64, a limiting telescopic rod 65, and a guide slider 66. One end of the ball screw 63 is fixedly connected to the drive shaft of the drive motor 61, and the other end is rotatably connected to the machining platform 1 through a bearing. The first limiting slider 64 is threadedly connected to the ball screw 63 and slidably connected to the limiting groove 62. One end of the limiting telescopic rod 65 is connected to the first limiting slider 64, and the other end is connected to the cutting tool 5. The guide slider 66 is disposed on the side of the limiting telescopic rod 65 near the cutting tool 5, and the guide slider 66 is slidably connected to the irregular guide rail 4.

[0034] The limiting telescopic rod 65 includes a fixed tube 651 and a sliding rod 652. The sliding rod 652 is slidably connected to the fixed tube 651. One end of the fixed tube 651 is fixedly connected to a first limiting slider 64, and the end of the sliding rod 652 away from the fixed tube 651 is fixedly connected to the cutter 5. A limiting groove 653 is formed on the inner wall of the fixed tube 651. A second limiting slider 654 is fixedly provided at the end of the sliding rod 652 away from the cutter 5, and the second limiting slider 654 is slidably connected to the limiting groove 653. A guide slider 66 is fixedly connected to the end of the sliding rod 652 near the cutter 5.

[0035] There are two limiting grooves 653 and two second limiting sliders 654. The two limiting grooves 653 are arranged in a circular array on the inner wall of the fixed tube 651, and the two second limiting sliders 654 are arranged in a circular array on the outer side of the sliding rod 652.

[0036] Reference Figure 1 and Figure 4The clamping mechanism 3 includes a bottom clamp 31 connected to the base plate 2, a mounting bracket 32 ​​set on the bottom clamp 31, a limiting rod 33 fixedly set on the mounting bracket 32, an adjusting screw 34 threadedly connected to the mounting bracket 32, and a top clamp 35. The top clamp 35 has a connecting hole 36. The limiting rod 33 passes through the connecting hole 36 and is slidably connected to the top clamp 35. One end of the adjusting screw 34 is rotatably connected to the top clamp 35 through a bearing, and the other end is fixedly connected to a handle 37.

[0037] The bottom clamp 31 includes a base 311 fixedly connected to the base plate 2, a central shaft 312 fixedly disposed in the middle of the base 311, an adjusting seat 313 rotatably connected to the central shaft 312 via a bearing, and a limiting component 38 for limiting the adjusting seat 313. The mounting bracket 32 ​​is fixedly disposed on the side of the adjusting seat 313 away from the base 311.

[0038] The limiting component 38 includes a first limiting hole 381 opened on the base 311, a second limiting hole 382 opened on the adjusting seat 313, and a limiting pin 383, with the limiting pin 383 inserted into the first limiting hole 381 and the second limiting hole 382.

[0039] There are two limiting components 38, which are symmetrically distributed on both sides of the bottom clamp 31.

[0040] The implementation principle of a dumbbell sample-making machine according to an embodiment of this application is as follows: When different types of dumbbell samples need to be processed, the electric telescopic rod 72 drives the limiting block 71 to rise, causing the limiting block 71 to separate from the fixing groove 73. Then, the base plate 2 is removed from the mounting groove 74, thereby disassembling the clamping mechanism 3 and the irregular guide rail 4. By placing the base plate 2 into the mounting groove 74, and then using the electric telescopic rod 72 to drive the limiting block 71 to engage with the fixing groove 73, the clamping mechanism 3 and the irregular guide rail 4 can be installed. The installation and disassembly process is simple, thereby improving the processing efficiency of dumbbell samples and reducing the labor intensity of workers. By rotating the handle 37, the adjusting screw 34 can be rotated. The adjusting screw 34 and the limiting rod 33 drive the top clamp 35 to rise and fall, thereby clamping the tube segment to be processed. The drive motor 61 drives the ball screw 63 to rotate, and the ball screw 63 drives the first limiting slider 64 to slide in the limiting groove 62. The first limiting slider 64 is connected to the cutter 5 through the limiting telescopic rod 65. During the movement of the first limiting slider 64, it drives the guide slider 66 to slide in the irregular guide rail 4, thereby causing the limiting telescopic rod 65 to drive the cutter 5 to move along the irregular guide rail 4, and thus causing the cutter 5 to process the tube into a dumbbell-shaped strip. After one side of the tube is processed, the other side of the tube can be processed by removing the limiting pin 383 and rotating the adjusting seat 313, which further simplifies the operation process, thereby further improving the processing efficiency of the dumbbell strip and further reducing the labor intensity of the workers.

[0041] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dumbbell sample making machine, characterized in that: The system includes a processing platform (1), a base plate (2), a clamping mechanism (3) mounted on the base plate (2), a shaped guide rail (4) mounted on the base plate (2), a cutting tool (5), a driving mechanism (6) for driving the cutting tool (5) to move along the shaped guide rail (4), and a fixing mechanism (7) for fixing the base plate (2). The fixing mechanism (7) includes multiple L-shaped limiting blocks (71), an electric telescopic rod (72) connected to the limiting blocks (71), multiple fixing slots (73) on the top of the base plate (2), an installation slot (74) on the processing platform (1), and multiple installation holes (75). The base plate (2) is engaged with the installation slot (74), the electric telescopic rod (72) is mounted in the installation hole (75), and the limiting blocks (71) are engaged with the fixing slots (73).

2. The dumbbell sample-making machine according to claim 1, characterized in that: The drive mechanism (6) includes a drive motor (61) mounted on the machining platform (1), a limiting groove (62) opened on the machining platform (1), a ball screw (63) mounted in the limiting groove (62), a first limiting slider (64), a limiting telescopic rod (65), and a guide slider (66); one end of the ball screw (63) is fixedly connected to the drive shaft of the drive motor (61), and the other end is rotatably connected to the machining platform (1); the first limiting slider (64) is threadedly connected to the ball screw (63) and slidably connected to the limiting groove (62); one end of the limiting telescopic rod (65) is connected to the first limiting slider (64), and the other end is connected to the cutting tool (5); the guide slider (66) is mounted on the side of the limiting telescopic rod (65) close to the cutting tool (5), and the guide slider (66) is slidably connected to the irregular guide rail (4).

3. The dumbbell sample-making machine according to claim 2, characterized in that: The limiting telescopic rod (65) includes a fixed tube (651) and a sliding rod (652). The sliding rod (652) is slidably connected to the fixed tube (651). One end of the fixed tube (651) is connected to the first limiting slider (64). The end of the sliding rod (652) away from the fixed tube (651) is connected to the cutter (5). A limiting groove (653) is provided on the inner wall of the fixed tube (651). A second limiting slider (654) is provided at the end of the sliding rod (652) away from the cutter (5). The second limiting slider (654) is slidably connected to the limiting groove (653).

4. A dumbbell sample-making machine according to claim 3, characterized in that: The number of the limiting groove (653) and the second limiting slider (654) are both multiple. The multiple limiting grooves (653) are arranged in a circumferential array on the inner wall of the fixed tube (651), and the multiple second limiting sliders (654) are arranged in a circumferential array on the outer side of the sliding rod (652).

5. A dumbbell sample-making machine according to claim 4, characterized in that: The clamping mechanism (3) includes a bottom clamp (31) connected to the base plate (2), a mounting bracket (32) set on the bottom clamp (31), a limiting rod (33) set on the mounting bracket (32), an adjusting screw (34) threadedly connected to the mounting bracket (32), and a top clamp (35). The top clamp (35) has a connecting hole (36). The limiting rod (33) passes through the connecting hole (36) and is slidably connected to the top clamp (35). One end of the adjusting screw (34) is rotatably connected to the top clamp (35), and the other end is connected to a handle (37).

6. A dumbbell sample-making machine according to claim 5, characterized in that: The bottom clamp (31) includes a base (311) fixedly connected to the base plate (2), a central shaft (312) disposed in the middle of the base (311), an adjustment seat (313) rotatably connected to the central shaft (312), and a limiting component (38) for limiting the adjustment seat (313). The mounting bracket (32) is disposed on the side of the adjustment seat (313) away from the base (311).

7. A dumbbell sample-making machine according to claim 6, characterized in that: The limiting component (38) includes a first limiting hole (381) opened on the base (311), a second limiting hole (382) opened on the adjusting seat (313) and a limiting pin (383), the limiting pin (383) being inserted into the first limiting hole (381) and the second limiting hole (382).

8. A dumbbell sample-making machine according to claim 7, characterized in that: The number of the limiting components (38) is multiple, and the multiple limiting components (38) are symmetrically distributed on both sides of the bottom clamp (31).

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