Electric impact testing machine

Abstract

The utility model provides an electric impact testing machine, which belongs to the field of impact testing and comprises a box body, a buffer placing table arranged at the bottom of the inner wall of the box body, guide rods arranged in the middles of the two sides of the bottom of the inner wall of the box body, and a movable frame connected with the surfaces of the two guide rods in a sliding manner, the top of the movable frame is connected with a winding chain through a connecting piece, and the other end of the winding chain is connected with a winding disc at the top of the box body in a winding mode. According to the utility model, the weight requirement of the impact force of a test piece in the placing table is buffered, a plurality of groups of holding parts are matched to enable a plurality of counterweight plates to sequentially penetrate through the surfaces of two limiting rods, and then a buffer filler strip penetrates through the two limiting rods and is matched with two limiting bolts to be in threaded connection with the end surfaces of the two limiting rods; and therefore, the convenience of replacing the counterweight structure in the testing process of the testing machine is improved, and the damage to the structures caused by the falling of the counterweight part due to the lack of a limiting structure in the impact process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of impact test, concretely to an electric impact testing machine. BACKGROUND

[0002] The impact testing machine is a material testing machine for applying impact test force to a test sample and performing impact test. The impact testing machine can realize two forms of test, i.e. simple beam and cantilever beam, by replacing the pendulum and the test sample base. According to the search, the electric impact testing machine disclosed in application No. CN202221157480.9 comprises a base plate, a support frame connected to the top end of the base plate, a rotating seat connected to the top end of the support frame, a wire shaft rotatably connected in the rotating seat, a force receiving block connected to the right end of the wire shaft and penetrating through the rotating seat, a steel wire rope wound on the wire shaft, an impact block connected to the bottom end of the steel wire rope, a plurality of counterweights placed on the top end of the impact block, a sliding plate slidably connected to the top end of the support frame, a first motor installed on the top end of the sliding plate, a power block connected to the output end of the first motor, a first electric cylinder installed on the top end of the support frame through a fixing plate, the output end of the first electric cylinder being connected with the sliding plate, a protective door hinged to the front and rear ends of the support frame, and a fixing mechanism connected to the top end of the base plate. The fixing mechanism is convenient for adjusting the weight of different test samples, thereby improving the accuracy of impact test and preventing the broken test samples from hurting the operator. However, the above-mentioned description still has the following defects in actual use: the test machine lacks stable limiting structure for adjusting the weight of the applied force, and is prone to collision damage between structures. In addition, different impact pieces are used due to different specifications and shapes of different test samples, thereby limiting the use range of the test machine. Therefore, it is necessary to design a practical electric impact testing machine. SUMMARY

[0003] The utility model aims at providing an electric impact testing machine to solve the problems in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an electric impact testing machine, comprising: a box body, a buffer placing table is arranged at the bottom of the inner wall of the box body, guide rods are arranged at the middle of both sides of the bottom of the inner wall of the box body, a moving frame is slidably connected to the surfaces of the two guide rods, the moving frame is installed and connected with a winding chain through a connecting piece, the other end of the winding chain is wound and connected with a winding disc at the top of the box body;

[0005] A counterweight limiting assembly is arranged on the inner wall of the moving frame, the counterweight limiting assembly comprises two limiting rods arranged at both sides of the bottom of the moving frame, a plurality of counterweight plates are sleeved on the surfaces of the two limiting rods, a holding part is arranged at the middle of both ends of each of the plurality of counterweight plates, a buffer pad strip is sleeved on the surfaces of the top ends of the two limiting rods, and two limiting bolts are arranged at the top of the buffer pad strip.

[0006] The impact piece mounting assembly comprises two fixed plates mounted on both sides of the moving frame bottom, a plurality of connecting holes are formed in the middle of the side surface of each of the two fixed plates, the inner walls of the connecting holes are connected with the plurality of hole grooves formed on both sides of the moving frame bottom through connecting pins, the opposite side of each of the two fixed plates is fixedly connected with the two ends of two fixed rods, two adjusting plates are slidably connected with the surfaces of the two fixed rods, the opposite side of each of the two adjusting plates is provided with anti-skid lines and abuts against the two sides of the impact piece, and a hexagonal adjusting nut is threadedly connected with the surface of each end of the two fixed rods close to the two adjusting plates.

[0007] As a preferred scheme of the utility model, two cylinders are arranged on both sides of the buffer placing table, the output rods of the two groups of cylinders are fixedly connected with one side of the two clamping plates, sliding blocks are arranged on the bottom of the two clamping plates, and the surfaces of the bottom ends of the two groups of sliding blocks are slidably connected with the sliding grooves formed in the bottom of the inner wall of the buffer placing table.

[0008] As a preferred scheme of the utility model, a through hole is formed in the middle of the top of the box body, and the inner wall of the through hole is connected with the winding chain.

[0009] As a preferred scheme of the utility model, a mounting seat is arranged on one side of the top of the box body, a motor is arranged on one side of the mounting seat, and the output shaft of the motor is fixedly connected with the winding disc.

[0010] As a preferred scheme of the utility model, a recess is formed in the middle of the bottom of the moving frame, and a buffer pad is arranged on the inner wall of the recess.

[0011] As a preferred scheme of the utility model, a through hole is formed in the surface of each end of the moving frame, a guide sleeve is arranged on the inner wall of each of the two groups of through holes, and the surfaces of the two guide rods are slidably connected with the inner walls of the two groups of guide sleeves.

[0012] As a preferred scheme of the utility model, transparent protective doors are arranged on the edges of the inner walls of the box body, a control panel is arranged on the surface of each transparent protective door, and universal wheels are arranged at the four corners of the bottom of the box body.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) the weight requirement of the impact force of the test piece in the buffer placement table is matched with a plurality of holding parts, a plurality of weight plates are sequentially threaded through the surfaces of two limiting rods, then the buffer pad strip is threaded through the two limiting rods, and the two limiting rods are threadedly connected with the end faces of two limiting bolts, so that the plurality of weight plates and the moving frame are fixed and installed, thereby improving the convenience of replacing the weight structure during the test of the testing machine and avoiding the damage to the structures caused by the lack of limiting structure during the impact process;

[0015] (2) by inserting a plurality of connecting pins into a plurality of connecting holes and hole grooves, the installation and fixation between the two fixed plates and the moving frame are completed, according to the size of the impact piece, the two adjusting plates are moved on the surfaces of the two fixed rods until the anti-skid lines on the surfaces of the two adjusting plates abut against the two sides of the impact piece, and the hexagonal adjusting nuts on the surfaces of the two ends of the two fixed rods are rotated by the wrench, so that the installation and fixation of impact pieces of different specifications are completed, avoiding the situation that the impact piece of the testing machine does not meet the impact requirement due to the different shapes and specifications of the test piece, and improving the flexibility of the testing machine. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 It is one of the partial structural schematic diagrams of the utility model;

[0019] Figure 4 It is a weight limiting assembly structural schematic diagram of the utility model;

[0020] Figure 5 It is an impact piece installation assembly structural schematic diagram of the utility model.

[0021] In the figure: 1, box body; 11, buffer placement table; 12, guide rod; 13, moving frame; 14, connecting piece; 15, winding chain; 16, winding disc; 17, hole groove; 18, air cylinder; 19, clamping plate; 110, sliding block; 111, sliding groove; 112, through hole; 113, mounting seat; 114, motor; 115, groove; 116, buffer pad plate; 117, guide sleeve; 118, transparent protective door; 119, control panel; 2, weight limiting assembly; 21, limiting rod; 22, weight plate; 23, holding part; 24, buffer pad strip; 25, limiting bolt; 3, impact piece installation assembly; 31, fixed plate; 32, connecting hole; 33, connecting pin; 34, fixed rod; 35, adjusting plate; 36, impact piece; 37, hexagonal adjusting nut. DETAILED DESCRIPTION

[0022] In order to make the purposes, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-5 An electric impact testing machine, comprising: a box body 1, the bottom of the inner wall of the box body 1 is provided with a buffer placing table 11, the middle of the two sides of the bottom of the inner wall of the box body 1 is provided with a guide rod 12, the surface of the two guide rods 12 is slidably connected with a moving frame 13, the top of the moving frame 13 is connected with a winding chain 15 through a connecting piece 14, the other end of the winding chain 15 is woundly connected with a winding disc 16 at the top of the box body 1.

[0024] Please refer to Figure 4 A counterweight limiting assembly 2, the counterweight limiting assembly 2 comprises two limiting rods 21 installed on the inner wall bottom of the moving frame 13, the surface of the two limiting rods 21 is sleeved with a plurality of counterweight plates 22, the middle of the two ends of the plurality of counterweight plates 22 is provided with a holding part 23, the surface of the top end of the two limiting rods 21 is sleeved with a buffer pad strip 24, and the top of the buffer pad strip 24 is provided with two limiting bolts 25.

[0025] Specific use: according to the weight requirement of the impact force required by the test piece inside the buffer placing table 11, a plurality of holding parts 23 are matched to sequentially pass a plurality of counterweight plates 22 through the surface of the two limiting rods 21, then the buffer pad strip 24 is passed through the two limiting rods 21, and the two limiting bolts 25 are threadedly connected with the end faces of the two limiting rods 21, the plurality of counterweight plates 22 and the moving frame 13 are fixedly installed, the buffer pad strip 24 can buffer the impact force received between structures during the impact test, improve the stability of the internal structure of the moving frame 13, and avoid the impact process from lacking a limiting structure to cause the counterweight to fall and affect the damage between structures.

[0026] Please refer to Figure 5The impact piece mounting assembly 3 comprises two fixed plates 31 mounted on the bottom of the moving frame 13, the middle of one side surface of each of the two fixed plates 31 is provided with a plurality of connecting holes 32, the inner walls of the plurality of connecting holes 32 are threadedly connected with a plurality of hole grooves 17 provided on the two sides of the bottom of the moving frame 13 through connecting pins 33, the opposite side of each of the two fixed plates 31 is fixedly connected with the two ends of two fixed rods 34, the surfaces of the two fixed rods 34 are slidably connected with two adjusting plates 35, the opposite side of each of the two adjusting plates 35 is provided with anti-skid lines and abuts against the two sides of the impact piece 36, and the surfaces of the two ends of the two fixed rods 34 are threadedly connected with hexagonal adjusting nuts 37 near the two adjusting plates 35.

[0027] In specific use, the plurality of connecting pins 33 are inserted into the plurality of connecting holes 32 and the hole grooves 17 to complete the mounting and fixing between the two fixed plates 31 and the moving frame 13, the two adjusting plates 35 are moved on the surfaces of the two fixed rods 34 according to the specifications and sizes of the impact piece 36 until the anti-skid lines on the surfaces of the two adjusting plates 35 abut against the two sides of the impact piece 36, and the hexagonal adjusting nuts 37 on the surfaces of the two ends of the two fixed rods 34 are rotated by a wrench to complete the mounting and fixing of the impact piece 36 of different specifications, so that the situation that the impact piece 36 of the testing machine does not meet the impact requirements due to different shapes and specifications of the test piece is avoided, and the flexibility of the testing machine is improved.

[0028] Please refer to Figure 2 The two sides of the buffer placing table 11 are provided with two air cylinders 18, the output rods of the two groups of air cylinders 18 are fixedly connected with one side of two clamping plates 19, and the two sides of the bottom of each of the two clamping plates 19 are provided with a sliding block 110. The surfaces of the bottom ends of the two groups of sliding blocks 110 are slidably connected with the slide grooves 111 provided on the inner walls of the two sides of the bottom of the buffer placing table 11.

[0029] In specific use, the output rods of the two groups of air cylinders 18 drive the two clamping plates 19 to move, the two clamping plates 19 drive the two groups of sliding blocks 110 to move on the inner walls of the two slide grooves 111 to limit the movement, until the surfaces of the two clamping plates 19 abut against the two sides of the test piece to complete the clamping operation.

[0030] Please refer to Figure 1 , Figure 2 The middle of the top of the box body 1 is provided with a through hole 112, and the inner wall of the through hole 112 is threadedly connected with the winding chain 15.

[0031] One side of the top of the box body 1 is provided with a mounting seat 113, one side of the mounting seat 113 is provided with a motor 114, and the output shaft of the motor 114 is fixedly connected with the winding disc 16.

[0032] Specific use: the surface of the winding chain 15 is connected with the inner wall of the through hole 112, so that the motor 114 drives the winding disc 16 to rotate to realize the winding operation of the winding chain 15, so as to drive the moving frame 13 to slide on the surface of the two guide rods 12, realize the lifting purpose of the impact piece 36.

[0033] Please refer to Figure 3 The middle part of the bottom of the moving frame 13 is provided with a recess 115, and the inner wall of the recess 115 is provided with a buffer pad 116.

[0034] Specific use: the buffer pad 116 is clamped with the inner wall of the recess 115, so as to be installed and fixed with the bottom of the moving frame 13, so as to buffer and protect the structure during the impact test.

[0035] Please refer to Figure 3 The surface of the moving frame 13 is provided with a through hole, and the inner wall of the two groups of through holes is provided with a guide sleeve 117, and the inner wall of the two groups of guide sleeves 117 is slidably connected with the surface of the two guide rods 12.

[0036] Specific use: the moving frame 13 cooperates with the guide sleeves 117 on the inner wall of the two groups of through holes to slide on the surface of the two guide rods 12, so as to ensure the smoothness of the falling and rising of the impact piece 36.

[0037] Please refer to Figure 1 The edges of the inner walls of the box body 1 are provided with transparent protective doors 118, the surface of the transparent protective doors 118 is provided with a control panel 119, and the four corners of the bottom of the box body 1 are provided with universal wheels.

[0038] Specific use: the two transparent protective doors 118 on the edges of the inner walls of the box body 1 can protect the operators and observe the impact process inside, and the control panel 119 can control the electric appliances of the device to ensure the normal work of the mechanical structure.

[0039] In use, according to the weight requirement of the impact force required by the test piece inside the buffer placing table 11, a plurality of weight plates 22 are sequentially threaded through the surfaces of the two limiting rods 21 by cooperating with a plurality of holding parts 23, then the buffer pad strip 24 is threaded through the two limiting rods 21, and the two limiting rods 21 are threadedly connected with the end faces of the two limiting bolts 25, so as to install and fix the plurality of weight plates 22 and the moving frame 13, avoiding the lack of limiting structure in the impact process to cause the weight to fall off and affect the damage between structures; the two adjusting plates 35 are moved on the surfaces of the two fixed rods 34 until the anti-skid lines on the surfaces of the two adjusting plates 35 abut against the two sides of the impact piece 36, the hexagonal adjusting nuts 37 on the surfaces of the two ends of the two fixed rods 34 are rotated by cooperating with a wrench, the installation and fixation of the impact piece 36 of different specifications are completed, then the motor 114 drives the moving frame 13 to move on the surfaces of the two guide rods 12 by cooperating with the winding disc 16, the winding chain 15 and the connecting piece 14, so that the impact piece 36 falls to complete the impact test operation.

[0040] The contents not described in detail in the description belong to the prior art known to those skilled in the art, although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electrically driven impact testing machine characterized by comprising: Include: The box (1), the bottom of the inner wall of the box (1) is provided with a buffer placing table (11), the middle of the bottom of the inner wall of the box (1) is provided with a guide rod (12), the surface of the two guide rods (12) is slidably connected with a moving frame (13), the top of the moving frame (13) is connected with a winding chain (15) through a connecting piece (14), the other end of the winding chain (15) is woundly connected with a winding disc (16) on the top of the box (1); Counterweight limiting assembly (2), the counterweight limiting assembly (2) includes two limiting rods (21) installed on the bottom of the inner wall of the moving frame (13), the surface of the two limiting rods (21) is provided with a plurality of counterweight plates (22), the middle of the two ends of the plurality of counterweight plates (22) is provided with a holding part (23), the surface of the top of the two limiting rods (21) is provided with a buffer pad strip (24), the top of the buffer pad strip (24) is provided with two limiting bolts (25); Impact piece mounting assembly (3), the impact piece mounting assembly (3) includes two fixed plates (31) installed on the bottom of the moving frame (13), the middle of one side surface of the two fixed plates (31) is provided with a plurality of connecting holes (32), the inner wall of the plurality of connecting holes (32) is threadedly connected with a plurality of hole grooves (17) formed on the two sides of the bottom of the moving frame (13) through a connecting pin (33), the opposite side of the two fixed plates (31) is fixedly connected with the two ends of two fixed rods (34), the surface of the two fixed rods (34) is slidably connected with two adjusting plates (35), the opposite side of the two adjusting plates (35) is provided with anti-skid lines, and the opposite side of the two adjusting plates (35) is abutted with the two sides of the impact piece (36), the position of the surface of the two ends of the two fixed rods (34) close to the two adjusting plates (35) is threadedly connected with a hexagonal adjusting nut (37).

2. An electrodynamic impact testing machine according to claim 1, characterized in that: The two sides of the buffer placing table (11) are provided with two air cylinders (18), the output rods of the two groups of air cylinders (18) are fixedly connected with one side of two clamping plates (19), the two sides of the bottom of the two clamping plates (19) are provided with sliding blocks (110), the surface of the bottom end of the two groups of sliding blocks (110) is slidably connected with the sliding grooves (111) formed on the two sides of the bottom of the inner wall of the buffer placing table (11).

3. The electrodynamic impact testing machine of claim 1, wherein: The middle of the top of the box (1) is provided with a through hole (112), the inner wall of the through hole (112) is connected with the winding chain (15).

4. The electrodynamic impact testing machine of claim 1, wherein: One side of the top of the box (1) is provided with a mounting seat (113), one side of the mounting seat (113) is provided with a motor (114), the output shaft of the motor (114) is fixedly connected with the winding disc (16).

5. The electrodynamic impact testing machine of claim 1, wherein: The middle of the bottom of the moving frame (13) is provided with a groove (115), the inner wall of the groove (115) is provided with a buffer pad (116).

6. The electrodynamic impact testing machine of claim 1, wherein: The surface of the two ends of the moving frame (13) is provided with a through hole, the inner wall of the two groups of through holes is provided with a guide sleeve (117), and the inner wall of the two groups of guide sleeves (117) is slidably connected with the surface of the two guide rods (12).

7. The electrodynamic impact testing machine of claim 1, wherein: The edge of the inner wall of the box (1) is provided with a transparent protective door (118), the surface of the transparent protective door (118) is provided with a control panel (119), and the four corners of the bottom of the box (1) are provided with universal wheels.

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