Notch machining and positioning device for impact sample

Abstract

The utility model relates to the field of impact specimen notch processing, in particular to an impact specimen notch processing and positioning device. Comprising a base, the upper surface of the base is fixedly connected with a table top, the upper surface of the table top is provided with a lubricating device, one end of the lubricating device is slidably connected with a fixing seat, the upper surface of the table top is provided with a clamping structure, the clamping structure comprises two sliding rails, and the two sliding rails are fixedly connected with the table top; the inner wall of the sliding rail is slidably connected with a sliding block, the upper surface of the sliding block is fixedly connected with a rotating shaft, and the arc surface of the rotating shaft is rotatably connected with two connecting rods. The impact sample notch processing and positioning device provided by the utility model has the advantages that a sample piece can be conveniently clamped and fixed, and the problems that the sample piece shakes when being fixed due to abrasion of a fixing piece, so that the error is large after the sample piece is processed, and an accurate experiment is difficult to carry out are solved.

Description

Technical Field

[0001] The utility model relates to the field of notch machining of impact specimens, in particular to a positioning device for notch machining of impact specimens. Background Art

[0002] For the notch machining of existing impact specimens, a forming and grinding broaching machine processing method is adopted. In the existing processing method using a broaching machine, the impact specimen is placed on a base and pressed by a pressing force applied from the rear. There are certain problems. When machining the size of the specimen to 8±0.05, if the size is controlled according to 10±0.1, and if the specimen size is machined to 10.10 to meet the drawing requirements, and the specimen is fixed according to the existing clamping method, then the size of the machined 8±0.05 will become 8.1, and the size exceeds the range. In view of this problem, the positioning device is improved.

[0003] Therefore, it is necessary to provide a new positioning device for notch machining of impact specimens to solve the above technical problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to provide a positioning device for notch machining of impact specimens.

[0005] To solve the above technical problems, the utility model provides a positioning device for notch machining of impact specimens, including: a base, the upper surface of the base is fixedly connected with a tabletop, the upper surface of the tabletop is provided with a lubricating device, one end of the lubricating device is slidably connected with a fixed seat, the upper surface of the tabletop is provided with a clamping structure, the clamping structure includes two slide rails, the two slide rails are fixedly connected with the tabletop, the inner wall of the slide rail is slidably connected with a slider, the upper surface of the slider is fixedly connected with a rotating shaft, the arc surface of the rotating shaft is rotatably connected with two connecting rods, one end of each of the two connecting rods away from the slider is rotatably connected with a limiting block, one end of one of the connecting rods away from the slider is provided with a fixing plate, and both ends of the fixing plate and the fixed seat are fixedly connected with the limiting block, the inner wall of the slide rail is rotatably connected with a screw rod, and the screw rod is threadedly connected with the slider.

[0006] The effects achieved by the above components are as follows: When it is necessary to clamp and machine the specimen, the screw rod is rotated. The screw rod rotates on the inner wall of the slide rail, the screw rod drives the slider to move, the slider slides on the inner wall of the slide rail, the slider drives the rotating shaft to move, the rotating shaft drives the two connecting rods to move, the connecting rods drive the limiting blocks to move, then the specimen is placed between the fixing plate and the fixed seat, the limiting blocks drive the fixing plate and the fixed seat to approach each other, the fixing plate and the fixed seat clamp and fix the specimen, and then the specimen is machined.

[0007] Preferably, one end of the screw rod away from the slider is fixedly connected with a turntable, and the cross-section of the turntable is circular.

[0008] The effect achieved by the above components is that when it is necessary to rotate the screw rod, the turntable can be directly rotated, and the turntable drives the screw rod to rotate, making it more convenient to rotate the screw rod.

[0009] Preferably, an anti-slip pad is fixedly connected to one side of the fixing plate close to the fixing seat, and the anti-slip pad is a rubber pad.

[0010] The effect achieved by the above components is that the anti-slip pad can increase the friction between the fixing plate and the specimen, and prevent sliding when pressing and fixing the specimen.

[0011] Preferably, the screw rod is made of stainless steel.

[0012] Preferably, an auxiliary structure is provided on the surface of the fixing seat. The auxiliary structure includes two hook plates, the two hook plates are in contact with the fixing seat, a sleeve plate is fixedly connected to the lower end of the hook plate, and a plurality of telescopic plates are slidably connected to the inner wall of the sleeve plate. A plurality of springs are arranged inside the telescopic plate and the sleeve plate, and two ends of the spring are respectively fixedly connected to the telescopic plate and the sleeve plate.

[0013] The effect achieved by the above components is that after the specimen is processed, because a forming and running-in broaching machine is used for processing, the specimen will retain heat after processing. If the operator directly takes it, it will burn the hand. Separate the fixing seat and the fixing plate, then the telescopic plate is stretched under the push of the spring, and then the specimen falls on the telescopic plate or the sleeve plate, and then pull the hook plate to drive the sleeve plate and the telescopic plate to move, thereby removing the specimen.

[0014] Preferably, a friction pad is fixedly connected to one end of the telescopic plate close to the fixing plate, and the cross-section of the friction pad is rectangular.

[0015] The effect achieved by the above components is that the friction pad can protect the telescopic plate and prevent the telescopic plate from directly contacting the fixing plate and causing unnecessary wear.

[0016] Preferably, a plurality of telescopic rods are arranged inside the sleeve plate and the telescopic plate. Two ends of the telescopic rod are respectively fixedly connected to the sleeve plate and the telescopic plate, and the spring is sleeved on the arc surface of the telescopic rod.

[0017] The effect achieved by the above components is that the telescopic rod can limit the spring and prevent the spring from deforming during use, thereby improving the service life of the spring.

[0018] Compared with the related art, an impact specimen notch machining positioning device provided by the present invention has the following beneficial effects:

[0019] The utility model provides a positioning device for machining notches of impact test specimens. By setting a clamping structure, it is convenient to clamp and fix the specimen, avoiding the shaking during the fixation of the specimen caused by the wear of the fixing part, which may lead to large errors after machining the specimen and make it difficult to conduct accurate experiments.

[0020] By setting an auxiliary structure, it is convenient to take out the machined specimen, avoiding the situation that the high temperature remaining on the machined specimen burns the operator's hand when taking it out. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is a schematic structural diagram of a positioning device for machining notches of impact test specimens provided by the utility model;

[0022] Figure 2 is Figure 1 a schematic diagram of the clamping structure shown in;

[0023] Figure 3 is Figure 2 an enlarged view of part A shown in;

[0024] Figure 4 is Figure 2 an enlarged view of part B shown in;

[0025] Figure 5 is Figure 1 a schematic diagram of the auxiliary structure shown in;

[0026] Figure 6 is Figure 5 a schematic diagram of a partial structure shown in.

[0027] Reference numerals in the figure: 1, base; 2, tabletop; 3, lubricating device; 4, fixing seat; 5, clamping structure; 51, turntable; 52, slide rail; 53, fixing plate; 54, connecting rod; 55, rotating shaft; 56, slider; 57, screw; 58, limiting block; 59, anti-slip pad; 6, auxiliary structure; 61, hook plate; 62, sleeve plate; 63, telescopic plate; 64, friction pad; 65, spring; 66, telescopic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0029] The following describes the specific implementation of the utility model in detail with reference to specific embodiments.

[0030] Please refer to Figures 1 to 6, A positioning device for machining notches of impact specimens provided by an embodiment of the present utility model includes: a base 1, a table 2 fixedly connected to the upper surface of the base 1, a lubricating device 3 installed on the upper surface of the table 2, a fixed seat 4 slidably connected to one end of the lubricating device 3, a clamping structure 5 provided on the upper surface of the table 2, and an auxiliary structure 6 provided on the surface of the fixed seat 4.

[0031] In an embodiment of the present utility model, please refer to Figures 1 to 4 , The clamping structure 5 includes two slide rails 52, the two slide rails 52 are fixedly connected to the table 2, a slider 56 is slidably connected to the inner wall of the slide rail 52, a rotating shaft 55 is fixedly connected to the upper surface of the slider 56, two connecting rods 54 are rotatably connected to the arc surface of the rotating shaft 55, and a limiting block 58 is rotatably connected to one end of each of the two connecting rods 54 away from the slider 56. A fixing plate 53 is provided at one end of one of the connecting rods 54 away from the slider 56, and both ends of the fixing plate 53 and the fixed seat 4 are fixedly connected to the limiting block 58. A screw 57 is rotatably connected to the inner wall of the slide rail 52, and the screw 57 is threadedly connected to the slider 56. When it is necessary to clamp and machine a specimen, the screw 57 is rotated. The screw 57 rotates on the inner wall of the slide rail 52, the screw 57 drives the slider 56 to move, the slider 56 slides on the inner wall of the slide rail 52, the slider 56 drives the rotating shaft 55 to move, the rotating shaft 55 drives the two connecting rods 54 to move, the connecting rods 54 drive the limiting block 58 to move, then the specimen is placed between the fixing plate 53 and the fixed seat 4, the limiting block 58 drives the fixing plate 53 and the fixed seat 4 to approach each other, and the fixing plate 53 and the fixed seat 4 clamp and fix the specimen, and then the specimen is machined. A turntable 51 is fixedly connected to one end of the screw 57 away from the slider 56, and the cross section of the turntable 51 is circular. When it is necessary to rotate the screw 57, the turntable 51 can be directly rotated, and the turntable 51 drives the screw 57 to rotate, making it more convenient to rotate the screw 57. A non-slip pad 59 is fixedly connected to the side of the fixing plate 53 close to the fixed seat 4, and the non-slip pad 59 is a rubber pad. The non-slip pad 59 can increase the friction between the fixing plate 53 and the specimen, and prevent sliding when the specimen is pressed and fixed. The screw 57 is made of stainless steel;

[0032] In an embodiment of the present utility model, please refer to Figure 5 and Figure 6, the auxiliary structure 6 includes two hook plates 61. The two hook plates 61 are in contact with the fixed seat 4. A sleeve plate 62 is fixedly connected to the lower end of the hook plate 61. A plurality of telescopic plates 63 are slidably connected to the inner wall of the sleeve plate 62. A plurality of springs 65 are arranged inside the telescopic plate 63 and the sleeve plate 62. Both ends of the spring 65 are fixedly connected to the telescopic plate 63 and the sleeve plate 62 respectively. After the specimen is processed, since a forming and running-in broaching machine is used for processing, the specimen will retain heat after processing. If the operator directly takes it, it will scald the hand. Separate the fixed seat 4 and the fixed plate 53, and then the telescopic plate 63 is stretched under the push of the spring 65. Then the specimen falls on the telescopic plate 63 or the sleeve plate 62. Then pull the hook plate 61 to drive the sleeve plate 62 and the telescopic plate 63 to move, thereby removing the specimen. A friction pad 64 is fixedly connected to one end of the telescopic plate 63 close to the fixed plate 53. The cross section of the friction pad 64 is rectangular. The friction pad 64 can protect the telescopic plate 63 and prevent the telescopic plate 63 from directly contacting the fixed plate 53 and causing unnecessary wear. A plurality of telescopic rods 66 are arranged inside the sleeve plate 62 and the telescopic plate 63. Both ends of the telescopic rod 66 are fixedly connected to the sleeve plate 62 and the telescopic plate 63 respectively. The spring 65 is sleeved on the arc surface of the telescopic rod 66. The telescopic rod 66 can limit the spring 65 and prevent the spring 65 from deforming during use, thereby increasing the service life of the spring 65;

[0033] The working principle of an impact specimen notch machining positioning device provided by the present invention is as follows: When it is necessary to clamp and process a specimen, rotate the screw rod 57. The screw rod 57 rotates on the inner wall of the slide rail 52. The screw rod 57 drives the slider 56 to move. The slider 56 slides on the inner wall of the slide rail 52. The slider 56 drives the rotating shaft 55 to move. The rotating shaft 55 drives two connecting rods 54 to move. The connecting rod 54 drives the limiting block 58 to move. Then place the specimen between the fixed plate 53 and the fixed seat 4. The limiting block 58 drives the fixed plate 53 and the fixed seat 4 to approach each other. The fixed plate 53 and the fixed seat 4 clamp and fix the specimen. Then process the specimen. When it is necessary to rotate the screw rod 57, the turntable 51 can be directly rotated. The turntable 51 drives the screw rod 57 to rotate. The turntable 51 makes it more convenient to rotate the screw rod 57. The anti-slip pad 59 can increase the friction between the fixed plate 53 and the specimen and prevent sliding when pressing and fixing the specimen.

[0034] After the specimen is processed, since a forming and running-in broaching machine is used for processing, the specimen will retain heat after processing. If the operator directly picks it up, it will burn the hand. Separate the fixing seat 4 and the fixing plate 53, then the telescopic plate 63 is stretched under the push of the spring 65, and then the specimen falls on the telescopic plate 63 or the sleeve plate 62. Then pull the hook plate 61 to drive the sleeve plate 62 and the telescopic plate 63 to move, thereby removing the specimen. The friction pad 64 can protect the telescopic plate 63 to prevent the telescopic plate 63 from directly contacting the fixing plate 53 and causing unnecessary wear. The telescopic rod 66 can limit the spring 65 to prevent the spring 65 from deforming during use and improve the service life of the spring 65.

[0035] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated herein.

[0036] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. An impact specimen notch processing and positioning device, characterized in that: include: A base (1), the upper surface of the base (1) is fixedly connected to a table top (2), the upper surface of the table top (2) is equipped with a lubricating device (3), one end of the lubricating device (3) is slidably connected to a fixed seat (4), the upper surface of the table top (2) is provided with a clamping structure (5), the clamping structure (5) comprises two slide rails (52), the two slide rails (52) are fixedly connected to the table top (2), the inner wall of the slide rail (52) is slidably connected to a slider (56), the upper surface of the slider (56) is fixedly connected to a rotating A shaft (55) is provided, wherein the arc surface of the rotating shaft (55) is rotatably connected to two connecting rods (54), and the ends of the two connecting rods (54) away from the slider (56) are both rotatably connected to the limit block (58), and the end of one of the connecting rods (54) away from the slider (56) is provided with a fixing plate (53), and the two ends of the fixing plate (53) and the fixing seat (4) are both fixedly connected to the limit block (58), and the inner wall of the slide rail (52) is rotatably connected to a screw rod (57), and the screw rod (57) is threadedly connected to the slider (56).

2. The impact specimen notch processing and positioning device according to claim 1, characterized in that: One end of the screw rod (57) away from the slider (56) is fixedly connected to a rotating disk (51), and the cross section of the rotating disk (51) is circular.

3. The impact specimen notch processing and positioning device according to claim 1, characterized in that: A side of the fixing plate (53) close to the fixing seat (4) is fixedly connected with an anti-skid pad (59), and the anti-skid pad (59) is a rubber pad.

4. The impact specimen notch processing and positioning device according to claim 1, characterized in that: The screw (57) is made of stainless steel.

5. The impact specimen notch processing and positioning device according to claim 1, characterized in that: An auxiliary structure (6) is provided on the surface of the fixing seat (4), and the auxiliary structure (6) comprises two hook plates (61), the two hook plates (61) are in contact with the fixing seat (4), the lower ends of the hook plates (61) are fixedly connected with a sleeve plate (62), the inner wall of the sleeve plate (62) is slidably connected with a plurality of telescopic plates (63), a plurality of springs (65) are provided inside the telescopic plates (63) and the sleeve plate (62), and the two ends of the springs (65) are respectively fixedly connected with the telescopic plates (63) and the sleeve plate (62).

6. The impact specimen notch processing and positioning device according to claim 5, characterized in that: One end of the telescopic plate (63) close to the fixed plate (53) is fixedly connected to a friction pad (64), and the cross section of the friction pad (64) is rectangular.

7. The impact specimen notch processing and positioning device according to claim 5, characterized in that: A plurality of telescopic rods (66) are provided inside the sleeve plate (62) and the telescopic plate (63), and two ends of the telescopic rods (66) are respectively fixedly connected to the sleeve plate (62) and the telescopic plate (63), and the spring (65) is sleeved on the arc surface of the telescopic rod (66).

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