Hardness testing device for production of chilled alloy cast iron piston rod

Abstract

The utility model relates to the technical field of chilled alloy cast iron piston rod production, in particular to a hardness testing device for chilled alloy cast iron piston rod production, which can perform multi-point hardness detection on a piston rod, improve the detection precision and ensure the reliability of a hardness detection result of the piston rod. Comprising a detection platform, a fixing frame, two first fixing plates, a first motor, a screw, a moving block, a hydraulic cylinder, a pressure detector, a detection block and a clamp assembly, the fixing frame is installed on the rear side of the top end of the detection platform, the two first fixing plates are symmetrically installed at the top end in the fixing frame, and the first motor is installed at the right end of the first fixing plate on the right side; the screw is rotatably mounted between the two first fixing plates, the hydraulic cylinder is mounted at the bottom end of the moving block, the pressure detector is mounted at the output end of the hydraulic cylinder, the detection block is mounted at the bottom end of the pressure detector, and the clamp assembly is mounted at the top end of the detection platform.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cold hard alloy cast iron piston rod production, in particular to a hardness testing device for cold hard alloy cast iron piston rod production. BACKGROUND

[0002] Cold hard alloy cast iron piston rod is a kind of key component working under high pressure, high temperature and high wear environment, is widely used in various mechanical equipment, such as hydraulic press, flat vulcanizing machine, injection molding machine etc., and this material has good wear resistance, compression strength and higher hardness, is suitable for the application scene needing to bear larger load and wear.

[0003] The hardness testing of cold hard alloy cast iron piston rod is an important step to ensure that its performance meets the requirements, but the existing hardness testing device is usually single-point detection, and single-point detection can only test in a fixed position, and cannot comprehensively reflect the hardness distribution of the entire piston rod. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a hardness testing device for cold hard alloy cast iron piston rod production, which can detect the hardness of the piston rod at multiple points, improve the detection accuracy and ensure the reliability of the piston rod hardness test results.

[0005] The hardness testing device for cold hard alloy cast iron piston rod production includes a detection platform, a fixed frame, two groups of first fixed plates, a first motor, a screw rod, a moving block, a hydraulic cylinder, a pressure detector, a detection block and a clamp assembly, the fixed frame is installed at the top rear side of the detection platform, the two groups of first fixed plates are symmetrically installed at the top inner side of the fixed frame, the first motor is installed at the right end of the right first fixed plate, the screw rod is rotatably installed between the two groups of first fixed plates, the output end of the first motor is connected with the right end of the screw rod through the right first fixed plate, the bottom end of the moving block is slidably connected with the top inner side of the fixed frame, the middle part of the moving block is provided with a threaded hole in communication, the moving block is threadedly connected with the screw rod, the hydraulic cylinder is installed at the bottom end of the moving block, the pressure detector is installed at the output end of the hydraulic cylinder, the detection block is installed at the bottom end of the pressure detector, and the clamp assembly is installed at the top end of the detection platform.

[0006] Preferably, the clamp assembly comprises a bidirectional screw, a second motor, two sets of sliding blocks, two sets of vertical plates, two sets of rotating shafts, two sets of rotating discs, six sets of second fixing plates, six sets of telescopic pipes, six sets of telescopic rods, six sets of springs, six sets of clamping plates and a rotating device, the top end of the detection platform is provided with a sliding groove, the bidirectional screw is rotatably installed in the sliding groove of the detection platform, the second motor is installed at the left end of the detection platform, the output end of the second motor penetrates through the left end of the detection platform and is connected with the left end of the bidirectional screw, the two sets of sliding blocks slide in the sliding groove of the detection platform, the middle parts of the two sets of sliding blocks are both provided with threaded holes in communication, the two sets of sliding blocks are in threaded connection with the bidirectional screw, the two sets of sliding blocks are installed at the bottom ends of the two sets of vertical plates respectively, the two sets of rotating shafts are rotatably installed at the upper parts of the two sets of vertical plates respectively, the two sets of rotating discs are installed at the inner ends of the two sets of rotating shafts respectively, the six sets of second fixing plates are installed at the inner ends of the two sets of rotating discs respectively and equally, the six sets of telescopic pipes are installed at the inner ends of the six sets of second fixing plates respectively, the six sets of telescopic rods are connected with the outer ends of the six sets of clamping plates respectively, the six sets of telescopic rods are in sliding connection with the six sets of telescopic pipes, the six sets of springs are sleeved on the six sets of telescopic rods respectively, one end of each of the six sets of springs is linked with the six sets of telescopic pipes, and the other end of each of the six sets of springs is connected with the six sets of telescopic rods; and the rotating device is installed at the right end of the right vertical plate and is in matched connection with the right rotating shaft.

[0007] Preferably, the rotating device comprises two sets of gears, a third motor and a motor frame, the third motor is installed at the inner end of the motor frame, the motor frame is installed at the right end of the right vertical plate on the lower side, the two sets of gears are installed at the right part of the right rotating shaft and the output end of the third motor respectively, and the two sets of gears are in meshing connection.

[0008] Preferably, the rotating device comprises two sets of gears, a third motor and a motor frame, the third motor is installed at the inner end of the motor frame, the motor frame is installed at the right end of the right vertical plate on the lower side, the two sets of gears are installed at the right part of the right rotating shaft and the output end of the third motor respectively, and the two sets of gears are in meshing connection.

[0009] Preferably, the rotating device comprises two sets of gears, a third motor and a motor frame, the third motor is installed at the inner end of the motor frame, the motor frame is installed at the right end of the right vertical plate on the lower side, the two sets of gears are installed at the right part of the right rotating shaft and the output end of the third motor respectively, and the two sets of gears are in meshing connection.

[0010] Preferably, the detection block is made of diamond material.

[0011] Preferably, the bottom end of the clamping plate is provided with an inward inclined surface on the outer side.

[0012] Preferably, the bottom end of the clamping plate is provided with an inward inclined surface on the outer side.

[0013] The beneficial effects of the utility model compared with prior art are: the piston rod is fixed through the fixture assembly, then the hydraulic cylinder is opened, the hydraulic cylinder drives the pressure detector and the detection block to move downwards, when the detection block contacts with the piston rod, the pressure detector appears pressure value, when the piston rod appears obvious indentation, the pressure value of the pressure detector at this time is recorded, it is the hardness of the point of the piston rod, the first motor is opened, the first motor drives the screw rod to rotate, the screw rod is threadedly connected with the moving block, the moving block drives the hydraulic cylinder to move horizontally, when the detection block moves to the specified distance, the hydraulic cylinder is opened, the hydraulic cylinder drives the pressure detector and the detection block to move downwards to detect the hardness of another point of the piston rod, the above operation is repeated to detect the hardness of multiple points of the piston rod, through the setting of the equipment, the hardness of multiple points of the piston rod can be detected, the detection precision is improved, and the reliability of the piston rod hardness detection result is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the first visual angle structure schematic diagram of the utility model;

[0015] Figure 2 It is the second visual angle structure schematic diagram of the utility model;

[0016] Figure 3 It is Figure 1 The enlarged structure schematic diagram of A in it;

[0017] Figure 4 It is Figure 1 The enlarged structure schematic diagram of B in it;

[0018] Figure 5 It is Figure 2 The enlarged structure schematic diagram of C in it;

[0019] Mark in the drawing: 1, detection platform;2, fixed frame;3, first fixed plate;4, first motor;5, screw rod;6, moving block;7, hydraulic cylinder;8, pressure detector;9, detection block;10, bidirectional screw rod;11, second motor;12, sliding block;13, vertical plate;14, rotating shaft;15, rotating disc;16, second fixed plate;17, telescopic pipe;18, telescopic rod;19, spring;20, clamping plate;21, gear;22, third motor;23, motor frame;24, third fixed plate;25, electric push rod;26, top block;27, auxiliary block. DETAILED DESCRIPTION

[0020] The specific embodiment of the utility model is described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but not to limit the scope of the utility model.

[0021] As Figures 1 to 5As shown, the utility model discloses a cold hard alloy cast iron piston rod production hardness testing device, including detection platform 1, fixed frame 2, two groups of first fixed plate 3, first motor 4, screw rod 5, moving block 6, hydraulic cylinder 7, pressure detector 8, detection block 9 and fixture assembly, fixed frame 2 is installed at the top rear side of detection platform 1, two groups of first fixed plate 3 are symmetrically installed in the top end in fixed frame 2, first motor 4 is installed at the right end of right first fixed plate 3, screw rod 5 is rotatably installed between two groups of first fixed plate 3, and the right end of screw rod 5 is connected with right first fixed plate 3 through the output end of first motor 4, the bottom end of moving block 6 is slidably connected with the top end in fixed frame 2, and the middle part of moving block 6 is provided with a threaded hole, and moving block 6 is screw connected with screw rod 5, hydraulic cylinder 7 is installed at the bottom end of moving block 6, pressure detector 8 is installed at the output end of hydraulic cylinder 7, detection block 9 is installed at the bottom end of pressure detector 8, and fixture assembly is installed at the top end of detection platform 1;

[0022] The piston rod is fixed through the fixture assembly, then the hydraulic cylinder 7 is opened, the hydraulic cylinder 7 drives the pressure detector 8 and the detection block 9 to move downwards, when the detection block 9 contacts the piston rod, the pressure detector 8 appears pressure value, when the piston rod appears obvious indentation, the pressure value of the pressure detector 8 at this time is recorded, which is the hardness of the point of the piston rod, by opening the first motor 4, the first motor 4 drives the screw rod 5 to rotate, the screw rod 5 is screw connected with the moving block 6, the moving block 6 drives the hydraulic cylinder 7 to move horizontally, when the detection block 9 moves to the specified distance, the hydraulic cylinder 7 is opened, the hydraulic cylinder 7 drives the pressure detector 8 and the detection block 9 to move downwards to detect the hardness of another point of the piston rod, and the above operation is repeated to detect the hardness of multiple points of the piston rod, through the equipment, the hardness of multiple points of the piston rod can be detected, the detection precision is improved, and the reliability of the piston rod hardness detection result is guaranteed.

[0023] As a preferred of the above embodiment, the clamp assembly comprises the bidirectional screw 10, the second motor 11, the two sets of sliding blocks 12, the two sets of vertical plates 13, the two sets of rotating shafts 14, the two sets of rotating discs 15, the six sets of second fixing plates 16, the six sets of telescopic pipes 17, the six sets of telescopic rods 18, the six sets of springs 19, the six sets of clamping plates 20 and the rotating device, the detection platform 1 is provided with a sliding groove at the top end, the bidirectional screw 10 is rotatably installed in the sliding groove of the detection platform 1, the second motor 11 is installed at the left end of the detection platform 1, the output end of the second motor 11 is connected with the left end of the bidirectional screw 10 through the left end of the detection platform 1, the two sets of sliding blocks 12 slide in the sliding groove of the detection platform 1, the middle parts of the two sets of sliding blocks 12 are both provided with threaded holes, the two sets of sliding blocks 12 are threadedly connected with the bidirectional screw 10, the two sets of sliding blocks 12 are respectively installed at the bottom ends of the two sets of vertical plates 13, the two sets of rotating shafts 14 are respectively rotatably installed at the upper parts of the two sets of vertical plates 13, the two sets of rotating discs 15 are respectively installed at the inner ends of the two sets of rotating shafts 14, the six sets of second fixing plates 16 are respectively and equally installed at the inner ends of the two sets of rotating discs 15, the six sets of telescopic pipes 17 are respectively installed at the inner ends of the six sets of second fixing plates 16, the six sets of telescopic rods 18 are respectively connected with the outer ends of the six sets of clamping plates 20, the six sets of telescopic rods 18 are slidably connected with the six sets of telescopic pipes 17, the six sets of springs 19 are respectively sleeved on the six sets of telescopic rods 18, one end of each of the six sets of springs 19 is connected with the six sets of telescopic pipes 17, and the other end of each of the six sets of springs 19 is connected with the six sets of telescopic rods 18, and the rotating device is installed at the right end of the right vertical plate 13 and is connected with the right rotating shaft 14 in a matched mode.

[0024] By means of the bidirectional screw 10, the second motor 11, the sliding blocks 12, the vertical plates 13, the rotating shafts 14, the rotating discs 15, the second fixing plates 16, the telescopic pipes 17, the telescopic rods 18, the springs 19 and the clamping plates 20, the piston rod is placed between the six sets of clamping plates 20, then the second motor 11 is turned on, the second motor 11 drives the bidirectional screw 10 to rotate, the bidirectional screw 10 is threadedly connected with the two sets of sliding blocks 12, the two sets of sliding blocks 12 drive the two sets of vertical plates 13 to move inward, and the six sets of clamping plates 20 clamp and fix the two ends of the piston rod under the actions of the six sets of telescopic pipes 17, the six sets of telescopic rods 18 and the six sets of springs 19, so that the fixing effect on the piston rod is improved.

[0025] As a preferred of the above embodiment, the rotating device comprises the two sets of gears 21, the third motor 22 and the motor frame 23, the third motor 22 is installed at the inner end of the motor frame 23, the motor frame 23 is installed at the right end of the right vertical plate 13 and at the lower side, the two sets of gears 21 are respectively installed at the right part of the right rotating shaft 14 and the output end of the third motor 22, and the two sets of gears 21 are in engagement.

[0026] By setting the gear 21, the third motor 22 and the motor frame 23, by opening the third motor 22, the third motor 22 is driven by the two sets of gears 21 to rotate the right rotating shaft 14, and the right rotating shaft 14 drives the piston rod to rotate through the right rotating disc 15, so as to adjust the direction angle of the piston rod, and the detection block 9 can detect the piston rod in all directions.

[0027] As a preferred embodiment of the above, it further comprises a third fixed plate 24, an electric push rod 25 and a top block 26, the third fixed plate 24 is installed on the left end of the left vertical plate 13, the electric push rod 25 is installed at the bottom end of the third fixed plate 24, and the top block 26 is installed at the output end of the electric push rod 25, and the top block 26 corresponds to the position of the left rotating shaft 14;

[0028] By setting the third fixed plate 24, the electric push rod 25 and the top block 26, when the piston rod does not need to be rotated, the electric push rod 25 is opened to drive the top block 26 to move downward, and the top block 26 is tightly fixed to the left rotating shaft 14, which can avoid the influence of the self-rotation of the left rotating shaft 14 on the stability of the piston rod.

[0029] As a preferred embodiment of the above, it further comprises six auxiliary blocks 27, which are respectively installed at the outer ends of the six clamping plates 20, and three sets of sliding grooves are arranged at the inner ends of the two rotating discs 15, and the six auxiliary blocks 27 respectively slide in the six sliding grooves of the two rotating discs 15;

[0030] By setting the auxiliary block 27, the moving stability of the clamping plate 20 can be improved.

[0031] As a preferred embodiment of the above, the detection block 9 is made of diamond material;

[0032] The diamond material has high hardness and good wear resistance.

[0033] As a preferred embodiment of the above, an inward inclined surface is arranged at the outer side of the bottom end of the clamping plate 20;

[0034] The clamping force can be gradually increased during clamping, so that the clamping is more firm, and the design of the inclined surface can better fit the surface of the piston rod during clamping, reduce the gap and improve the stability of clamping.

[0035] As a preferred embodiment of the above, a rubber pad is arranged at the bottom end of the top block 26;

[0036] The friction between the top block 26 and the left rotating shaft 14 can be increased, so that the reliability of the tightness of the left rotating shaft 14 can be improved.

[0037] The utility model discloses a cold hard alloy cast iron piston rod production uses hardness testing device, and its installation mode, connecting mode or setting mode are all common mechanical mode, can be implemented as long as reaching its beneficial effect, the first motor 4, hydraulic cylinder 7, pressure detector 8, second motor 11, third motor 22 and electric push rod 25 of the utility model discloses a cold hard alloy cast iron piston rod production uses hardness testing device are purchased on the market, and the technical personnel in this industry only need to install and operate according to its attached instruction book.

[0038] The utility model discloses a cold hard alloy cast iron piston rod production uses hardness testing device, and its installation mode, connecting mode or setting mode are all common mechanical mode, can be implemented as long as reaching its beneficial effect, the first motor 4, hydraulic cylinder 7, pressure detector 8, second motor 11, third motor 22 and electric push rod 25 of the utility model discloses a cold hard alloy cast iron piston rod production uses hardness testing device are purchased on the market, and the technical personnel in this industry only need to install and operate according to its attached instruction book.

[0039] The above only is the preferred implementation mode of the utility model, should point out, for the ordinary technical personnel of this technical field, on the premise of not departing from the technical principle of the utility model, can also make a number of improvements and variations, these improvements and variations also should be regarded as the protection range of the utility model.

Claims

1. A hardness testing device for producing chilled alloy cast iron piston rods, characterized in that, The device includes a testing platform (1), a fixed frame (2), two sets of first fixed plates (3), a first motor (4), a screw (5), a moving block (6), a hydraulic cylinder (7), a pressure detector (8), a detection block (9), and a fixture assembly. The fixed frame (2) is installed on the rear side of the top of the testing platform (1). The two sets of first fixed plates (3) are symmetrically installed on the top of the fixed frame (2). The first motor (4) is installed on the right end of the right first fixed plate (3). The screw (5) is rotatably installed between the two sets of first fixed plates (3). The output end of the first motor (4) passes through the right first fixed plate (3) and is connected to the right end of the screw (5). The bottom end of the moving block (6) is slidably connected to the top of the fixed frame (2). The middle part of the moving block (6) is connected with a threaded hole. The moving block (6) is threadedly connected to the screw (5). The hydraulic cylinder (7) is installed on the bottom end of the moving block (6). The pressure detector (8) is installed on the output end of the hydraulic cylinder (7). The detection block (9) is installed on the bottom end of the pressure detector (8). The fixture assembly is installed on the top of the testing platform (1).

2. The hardness testing device for producing chilled alloy cast iron piston rods as described in claim 1, characterized in that, The fixture assembly includes a bidirectional screw (10), a second motor (11), two sets of sliders (12), two sets of upright plates (13), two sets of rotating shafts (14), two sets of turntables (15), six sets of second fixing plates (16), six sets of telescopic tubes (17), six sets of telescopic rods (18), six sets of springs (19), six sets of clamping plates (20), and a rotating device. A groove is provided at the top of the testing platform (1). The bidirectional screw (10) is rotatably installed in the groove of the testing platform (1). The second motor (11) is installed at the left end of the testing platform (1). The output end of the second motor (11) passes through the left end of the testing platform (1) and connects to the left end of the bidirectional screw (10). The two sets of sliders (12) slide within the groove of the testing platform (1). A threaded hole is provided in the middle of each set of sliders (12). The two sets of sliders (12) are threadedly connected to the bidirectional screw (10). 12) Installed at the bottom of the two sets of upright plates (13) respectively, two sets of rotating shafts (14) respectively rotatably installed on the upper part of the two sets of upright plates (13), two sets of turntables (15) respectively installed on the inner end of the two sets of rotating shafts (14), six sets of second fixed plates (16) respectively equally installed on the inner end of the two sets of turntables (15), six sets of telescopic tubes (17) respectively installed on the inner end of the six sets of second fixed plates (16), six sets of telescopic rods (18) respectively connected to the outer end of the six sets of clamps (20), six sets of telescopic rods (18) and six sets of telescopic tubes (17) are slidably connected, six sets of springs (19) are respectively sleeved on the six sets of telescopic rods (18), one end of the six sets of springs (19) is connected to the six sets of telescopic tubes (17), and the other end of the six sets of springs (19) is connected to the six sets of telescopic rods (18). The rotating device is installed on the right end of the right upright plate (13), and the rotating device is connected to the right rotating shaft (14).

3. The hardness testing device for producing chilled alloy cast iron piston rods as described in claim 2, characterized in that, The rotating device includes two sets of gears (21), a third motor (22) and a motor frame (23). The third motor (22) is installed inside the motor frame (23), and the motor frame (23) is installed on the lower right side of the right side of the right upright plate (13). The two sets of gears (21) are respectively installed on the right side of the right rotating shaft (14) and the output end of the third motor (22), and the two sets of gears (21) mesh with each other.

4. The hardness testing device for producing chilled alloy cast iron piston rods as described in claim 3, characterized in that, It also includes a third fixing plate (24), an electric push rod (25) and a top block (26). The third fixing plate (24) is installed on the upper left side of the left side of the left upright plate (13), the electric push rod (25) is installed at the bottom of the third fixing plate (24), and the top block (26) is installed at the output end of the electric push rod (25). The top block (26) corresponds to the position of the left rotating shaft (14).

5. The hardness testing device for producing chilled alloy cast iron piston rods as described in claim 4, characterized in that, It also includes six sets of auxiliary blocks (27), which are installed on the outer ends of the six sets of clamps (20). The inner ends of the two sets of turntables (15) are each provided with three sets of sliding grooves. The six sets of auxiliary blocks (27) slide in the six sets of sliding grooves of the two sets of turntables (15).

6. The hardness testing device for producing chilled alloy cast iron piston rods as described in claim 5, characterized in that, The detection block (9) is made of diamond.

7. The hardness testing device for producing chilled alloy cast iron piston rods as described in claim 6, characterized in that, The bottom outer side of the clamp (20) is provided with an inward slope.

8. The hardness testing device for producing chilled alloy cast iron piston rods as described in claim 7, characterized in that, A rubber pad is provided at the bottom of the top block (26).

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