Execution member service life testing device

Abstract

The utility model relates to the technical field of testing devices, and particularly discloses an execution member service life testing device which comprises a testing seat, a mounting seat, an impact seat and a first load assembly, the mounting seat is fixed on the testing seat and used for mounting an execution member to be tested, and the impact seat is slidably connected with the mounting seat along a set direction. The impact seat is used for being rotationally connected with an output rod of the to-be-tested execution piece; the first load assembly comprises a first fixed seat fixed on the test seat, a first force bearing member slidably connected with the first fixed seat along a set direction, and a first spring arranged between the first force bearing member and the first fixed seat. The first spring is configured to apply an elastic force to the first force-bearing member and make the first force-bearing member always have a movement trend close to the impact seat, the impact seat can impact the first force-bearing member under the driving of the to-be-tested execution member, and a load is applied to the to-be-tested execution member through the first spring, so that the weight and the size of the execution member service life testing device are reduced, and the testing efficiency is improved. And carrying and storage are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to test device technical field especially relates to a kind of executive life testing device. BACKGROUND

[0002] Executive (such as cylinder, electric cylinder etc.) is usually used as power source in automation design, for example, electric cylinder is the modular product of the integration design of servo motor and screw rod, the rotary motion of servo motor is converted into linear motion, since the speed and number of revolutions of servo motor can be accurately controlled, the extension size of screw rod can be accurately controlled. Among them, the service life of electric cylinder is one of the important performance parameters of electric cylinder.

[0003] In prior art, a kind of executive life testing device is provided, the executive life testing device includes support seat and counterweight, support seat is used to support executive (such as electric cylinder), counterweight is arranged on support seat, and counterweight can move along first direction under the impetus of the piston rod of electric cylinder, when testing, counterweight is reciprocatedly moved along first direction by electric cylinder, to simulate the actual working scene of electric cylinder, and then test the service life of electric cylinder, but the size and weight of the counterweight of the executive life testing device are relatively large, which will affect the carrying and storage of the executive life testing device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of executive life testing device, which is beneficial to carrying and storage.

[0005] The utility model provides a kind of executive life testing device, which includes:

[0006] Test seat;

[0007] Mounting seat is fixed to the test seat, and the mounting seat is used to install the executive to be measured;

[0008] Impact seat is slidably connected with the mounting seat along a set direction, and the impact seat is rotatably connected with the output rod of the executive to be measured;

[0009] First load assembly includes first fixed seat fixed to the test seat, first force receiver slidably connected with the first fixed seat along a set direction, and first spring arranged between the first force receiver and the first fixed seat, the first spring is configured to apply elastic force to the first force receiver and make the first force receiver always have the movement tendency close to the impact seat, and the impact seat can impact the first force receiver under the drive of the executive to be measured.

[0010] As the preferred technical scheme of the execution piece service life test device, the first force bearing piece comprises a force bearing block and two guide columns, the two guide columns are fixedly connected with the force bearing block, and the two guide columns are slidingly connected with the first fixed seat along the set direction;

[0011] The first load assembly comprises a spring group, the spring group comprises two first springs, the two first springs of the spring group are sleeved on the two guide columns respectively, the two ends of each first spring are respectively abutted with the force bearing block and the first fixed seat, and each first spring is in a compressed state.

[0012] As the preferred technical scheme of the execution piece service life test device, the first load assembly comprises a plurality of spring groups, the elastic coefficients of the two first springs of each spring group are the same, in any two spring groups, the elastic coefficient of the first spring of one spring group is different from the elastic coefficient of the first spring of another spring group, and the plurality of spring groups are selectively arranged on the first force bearing piece.

[0013] As the preferred technical scheme of the execution piece service life test device, the first load assembly further comprises a first scale arranged on the test seat, and the first scale is used to indicate the current position of the first force bearing piece.

[0014] As the preferred technical scheme of the execution piece service life test device, the execution piece service life test device further comprises a second load assembly, and the second load assembly and the first load assembly are arranged on two sides of the impact seat along the set direction.

[0015] The second load assembly comprises a second fixed seat fixed to the test seat, a second force bearing piece slidingly connected with the second fixed seat along the set direction, and a second spring arranged between the second force bearing piece and the second fixed seat, the second spring is configured to apply an elastic force to the second force bearing piece and make the second force bearing piece always have a movement trend close to the impact seat, and the impact seat can impact the second force bearing piece under the driving of the to-be-tested execution piece.

[0016] As the preferred technical scheme of the execution piece service life test device, the second load assembly further comprises a guide rod, one end of the guide rod is fixed to the second force bearing piece, and the other end of the guide rod is slidingly connected with the second fixed seat along the set direction.

[0017] As the preferred technical scheme of the execution piece service life testing device, the second load assembly is close to the mounting seat relative to the first load assembly, the execution piece service life testing device comprises two second load assemblies, and the two second load assemblies are symmetrically arranged on two sides of the mounting seat.

[0018] As the preferred technical scheme of the execution piece service life testing device, the execution piece service life testing device further comprises a first impact head and two second impact heads, the first impact head and the two second impact heads are all mounted on the impact seat, and the first impact head and the two second impact heads are all made of elastic material, the first impact head is used for impacting the first force bearing piece, and the two second impact heads are used for respectively impacting the two second force bearing pieces.

[0019] As the preferred technical scheme of the execution piece service life testing device, the second load assembly further comprises a second scale arranged on the test seat, and the second scale is used for indicating the current position of the second force bearing piece.

[0020] As the preferred technical scheme of the execution piece service life testing device, the second load assembly comprises a plurality of second springs, the elastic coefficients of the plurality of second springs are different, and one of the plurality of second springs is arranged between the second force bearing piece and the second fixed seat.

[0021] The execution piece service life testing device provided by the utility model has at least the following beneficial effects:

[0022] The execution piece service life testing device comprises a test seat, a mounting seat, an impact seat and a first load assembly. The mounting seat is fixed to the test seat, and is used for mounting an execution piece to be tested. The impact seat is slidably connected to the mounting seat along a set direction, and is used for being rotatably connected to an output rod of the execution piece to be tested. The first load assembly comprises a first fixed seat fixed to the test seat, a first force bearing piece slidably connected to the first fixed seat along the set direction, and a first spring arranged between the first force bearing piece and the first fixed seat. The first spring is configured to apply an elastic force to the first force bearing piece and make the first force bearing piece always have a movement trend of approaching the impact seat. The impact seat can impact the first force bearing piece under the driving of the execution piece to be tested. The execution piece service life testing device can effectively reduce the weight and volume of the execution piece service life testing device by applying a load to the execution piece to be tested through the first spring to replace a counterweight, and facilitates the carrying and storage of the execution piece service life testing device. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The utility model discloses an execution piece service life testing device, and the execution piece service life testing device comprises a test seat, a mounting seat, an impact seat and a first load assembly.

[0024] Figure 2 It is the exploded view of the first load assembly in the service life test device for the executive part in the embodiment of the utility model;

[0025] Figure 3 It is the sectional view of the second load assembly in the service life test device for the executive part in the embodiment of the utility model;

[0026] Figure 4 It is the sectional view of the second load assembly in the embodiment of the utility model; Figure 1 The enlarged view of A in the middle.

[0027] In the figure:

[0028] 1, test seat; 2, mounting seat; 3, impact seat;

[0029] 4, first load assembly; 41, first fixed seat; 42, first force bearing piece; 421, force bearing block; 422, guide column; 423, first nut; 43, first spring; 44, first sliding sleeve; 45, first bolt; 46, first pin; 47, first scale;

[0030] 5, electric cylinder; 51, motor; 52, cylinder body; 53, screw rod;

[0031] 6, sliding assembly; 61, sliding rail; 62, sliding table;

[0032] 7, second load assembly; 71, second fixed seat; 72, second force bearing piece; 73, second spring; 74, guide rod; 75, second sliding sleeve; 76, second bolt; 77, second pin; 78, second scale; 79, second nut;

[0033] 8, first impact head; 9, second impact head. DETAILED DESCRIPTION

[0034] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiments are a 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 the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0035] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature is "above", "above" and "above" of the second feature, which includes the first feature above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" of the second feature, which includes the first feature below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0037] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as a limitation on the utility model.

[0038] The existing actuator service life test device comprises a support seat and a counterweight, the support seat is used for supporting the actuator (such as an electric cylinder), the counterweight is arranged on the support seat, and the counterweight can move in a first direction under the push of the piston rod of the electric cylinder. During testing, the counterweight is reciprocatingly pushed by the electric cylinder to move in the first direction, so as to simulate the actual working scene of the electric cylinder, and then the service life of the electric cylinder is tested. However, the size and weight of the counterweight of the actuator service life test device are relatively large, which will affect the carrying and storage of the actuator service life test device.

[0039] To this end, the embodiment provides an actuator service life test device to solve the above problems.

[0040] Specifically, as Figures 1 to 4As shown, the actuator lifespan testing device includes a test base 1, a mounting base 2, an impact base 3, and a first load assembly 4. The mounting base 2 is fixed to the test base 1 and is used to mount the actuator to be tested. The impact base 3 is aligned with the mounting base 2 in a predetermined direction (e.g., ...). Figure 1 (In the direction indicated by the arrow ab) a sliding connection, and the impact seat 3 is used to rotately connect with the output rod of the actuator under test; the first load assembly 4 includes a first fixed seat 41 fixed to the test seat 1, a first load member 42 slidably connected to the first fixed seat 41 in a set direction, and a first spring 43 disposed between the first load member 42 and the first fixed seat 41. The first spring 43 is configured to apply an elastic force to the first load member 42 and make the first load member 42 always have a tendency to move close to the impact seat 3. The impact seat 3 can impact the first load member 42 under the drive of the actuator under test. The actuator lifespan testing device provided in this embodiment allows the actuator under test to drive the impact seat 3 to move along a set direction between a first extreme position, an intermediate position, and a second extreme position. The intermediate position is located between the first and second extreme positions. When the actuator under test drives the impact seat 3 from the intermediate position to the first extreme position, the impact seat 3 will gradually move away from the first load-bearing member 42. When the actuator under test drives the impact seat 3 from the intermediate position to the second extreme position, the impact seat 3 first gradually approaches the first load-bearing member 42, and then the impact seat 3 will impact the first load-bearing member 42 and drive the first load-bearing member 42 to move synchronously until the impact seat 3 moves to the second extreme position. During the synchronous movement of the first load-bearing member 42 with the impact seat 3, the first spring 43 is compressed and provides a load that hinders the movement of the impact seat 3. Thus, the first spring 43 can apply a load to the actuator under test to simulate the actual use of the actuator under test. In this way, by replacing the counterweight with the first spring 43, the weight and volume of the actuator lifespan testing device can be effectively reduced, and the device can be easily transported and stored.

[0041] The actuator can be an electric cylinder 5, a pneumatic cylinder, or a hydraulic cylinder, etc. Specifically, in this embodiment, the actuator to be tested is an electric cylinder 5 as an example. The electric cylinder 5 includes a motor 51, a cylinder body 52 fixedly connected to the housing of the motor 51, a nut (not shown in the figure) that is driven by the motor 51 and rotatably connected to the cylinder body 52, and a lead screw 53 that is threadedly connected to the nut. The lead screw 53 is the output rod of the actuator. During the test, the cylinder body 52 is fixed to the mounting base 2, the lead screw 53 is rotatably connected to the impact seat 3, and the lead screw 53 extends in a set direction. After the motor 51 is started, the motor 51 drives the nut to rotate, and the nut drives the lead screw 53 to extend or retract in the set direction, so that the lead screw 53 drives the impact seat 3 to reciprocate in the set direction.

[0042] It should be noted that the direction in which the impact seat 3 is connected to the to-be-tested actuator is perpendicular to the set direction. Specifically, in the embodiment, the test seat 1 is square, the set direction is consistent with the length direction of the test seat 1, and the direction in which the impact seat 3 is relatively rotated with the to-be-tested actuator is consistent with the width direction of the test seat 1. In this way, the jamming of the to-be-tested actuator in the process of driving the impact seat 3 to move can also be avoided.

[0043] Optionally, referring to Figure 1 and Figure 4 , the actuator service life testing device further comprises a sliding assembly 6, the sliding assembly 6 comprises a sliding rail 61 mounted on the test seat 1 and a sliding table 62 fixedly connected with the impact seat 3, the sliding rail 61 extends along the set direction, and the sliding table 62 is slidingly arranged on the sliding rail 61. In this way, the impact seat 3 can move smoothly relative to the test seat 1, and the movement direction of the test seat 1 can be ensured to be stable. Preferably, the actuator service life testing device further comprises two sliding assemblies 6, and the two sliding assemblies 6 are arranged at intervals along the width direction of the test seat 1.

[0044] Optionally, referring to Figure 2 , in the embodiment, the first spring 43 is a compression spring, and in the process of the first force receiving member 42 moving synchronously with the impact seat 3, the first spring 43 is compressed. In other embodiments, the first spring 43 can also be replaced by a tension spring, and correspondingly, in the process of the first force receiving member 42 moving synchronously with the impact seat 3, the first spring 43 is stretched.

[0045] Optionally, referring to Figure 2 , the first force receiving member 42 comprises a force receiving block 421 and two guide columns 422, the two guide columns 422 are fixedly connected with the force receiving block 421, and the two guide columns 422 are slidingly connected with the first fixed seat 41 along the set direction; the first load assembly 4 comprises a spring set, the spring set comprises two first springs 43, the two first springs 43 of the spring set are sleeved on the two guide columns 422 respectively, the two ends of each first spring 43 are respectively abutted with the force receiving block 421 and the first fixed seat 41, and the first spring 43 is in a compressed state. In this way, the two guide columns 422 can ensure that the sliding direction of the first force receiving member 42 relative to the first fixed seat 41 remains stable. Preferably, the two guide columns 422 are symmetrically arranged on both sides of the to-be-tested actuator along the width direction of the test seat 1, so that when the impact seat 3 impacts the first force receiving member 42, the impact seat 3 and the first force receiving member 42 are balanced in force, further improving the stability of the movement of the first force receiving member 42 relative to the first fixed seat 41, and also improving the stability of the movement of the impact seat 3 relative to the test seat 1.

[0046] Optionally, referring to Figure 2The first load assembly 4 further comprises two first sliding sleeves 44, each of which is mounted on the first fixed seat 41 and arranged in one-to-one correspondence with the two guide columns 422, and the two guide columns 422 are respectively in sliding fit with the two first sliding sleeves 44, so as to further improve the stability and smoothness of the movement of the first force bearing piece 42 relative to the first fixed seat 41.

[0047] Optionally, referring to Figure 2 The first load assembly 4 further comprises two first nuts 423, and the ends of the two guide columns 422 away from the force block 421 pass through the first fixed seat 41 and are respectively in threaded connection with the two first nuts 423, and the first nut 423 limits the corresponding guide column 422 from being separated from the first fixed seat 41.

[0048] Optionally, the first load assembly 4 comprises a plurality of spring groups, the elastic coefficients of the two first springs 43 of each spring group are the same, the elastic coefficient of the first spring 43 of one spring group is different from that of the first spring 43 of another spring group in any two spring groups, and the plurality of spring groups are alternatively arranged on the first force bearing piece 42. In this embodiment, corresponding first springs 43 are selected according to different models of the to-be-tested actuator, and a plurality of spring groups are arranged to meet the test requirements of different models of the to-be-tested actuator. It can be understood that the elastic coefficients of the two first springs 43 of the spring group mounted on the first force bearing piece 42 are matched with the model of the to-be-tested actuator.

[0049] Optionally, referring to Figure 1 In this embodiment, the first load assembly 4 further comprises a plurality of first bolts 45, and the plurality of first bolts 45 connect the first fixed seat 41 and the test seat 1. In other embodiments, the first fixed seat 41 can also be connected with the test seat 1 in a manner such as welding.

[0050] Optionally, referring to Figure 2 The first load assembly 4 further comprises a plurality of first pins 46, and the plurality of first pins 46 are arranged at intervals and respectively inserted into the first fixed seat 41 and the test seat 1. By arranging the first pins 46, the position of the first fixed seat 41 relative to the test seat 1 can be kept stable under the impact of the impact seat 3.

[0051] Optionally, referring to Figure 1 The first load assembly 4 further comprises a first scale 47 arranged on the test seat 1, and the first scale 47 is used to indicate the current position of the first force bearing piece 42. By arranging the first scale 47, the deformation amount of the first spring 43 in the process of moving from the middle position to the second limit position of the impact seat 3 can be measured, and the maximum thrust of the output rod of the to-be-tested actuator when it is extended can be obtained by multiplying the deformation amount by the elastic coefficient of the first spring 43.

[0052] Optionally, please refer to Figure 1 and Figure 3 , the service life test device of the actuator further comprises a second load assembly 7, the second load assembly 7 and the first load assembly 4 are arranged on both sides of the impact seat 3 along the set direction; the second load assembly 7 comprises a second fixed seat 71 fixed to the test seat 1, a second force bearing piece 72 slidingly connected with the second fixed seat 71 along the set direction, and a second spring 73 arranged between the second force bearing piece 72 and the second fixed seat 71, the second spring 73 is configured to apply an elastic force to the second force bearing piece 72 and make the second force bearing piece 72 always have a movement trend close to the impact seat 3, and the impact seat 3 can impact the second force bearing piece 72 under the driving of the actuator to be tested. By setting in this way, when the impact seat 3 driven by the actuator to be tested moves from the middle position to the first limit position, the impact seat 3 will gradually move away from the first force bearing piece 42 and gradually approach the second force bearing piece 72, then the impact seat 3 will impact the second force bearing piece 72 and drive the second force bearing piece 72 to move synchronously, and until the impact seat 3 moves to the first limit position, in the process of synchronous movement of the second force bearing piece 72 with the impact seat 3, the second spring 73 is compressed and provides a load to hinder the movement of the impact seat 3, so that the actuator to be tested can be loaded by the second spring 73, so that the output rod of the actuator to be tested can also be loaded by the spring when it is retracted, so as to improve the detection efficiency of the service life of the actuator to be tested.

[0053] It should be noted that when the impact seat 3 is located at the middle position, the impact seat 3 is separated from the first force bearing piece 42 and the second force bearing piece 72 at the same time. When the impact seat 3 driven by the actuator to be tested moves from the middle position to the second limit position, the impact seat 3 will gradually move away from the second force bearing piece 72.

[0054] Optionally, please refer to Figure 3 In the embodiment, the second spring 73 is a compression spring, and in the process of synchronous movement of the second force bearing piece 72 with the impact seat 3, the second spring 73 is compressed; in other embodiments, the second spring 73 can also be replaced by a tension spring, and correspondingly, in the process of synchronous movement of the second force bearing piece 72 with the impact seat 3, the second spring 73 is stretched.

[0055] Optionally, please refer to Figure 3 The second load assembly 7 further comprises a guide rod 74, one end of the guide rod 74 is fixed to the second force bearing piece 72, and the other end of the guide rod 74 is slidingly connected with the second fixed seat 71 along the set direction. By arranging the guide rod 74, the movement of the second force bearing piece 72 relative to the second fixed seat 71 can be ensured to be stable and smooth.

[0056] Optionally, please refer to Figure 3The second load assembly 7 further comprises a second sliding sleeve 75, the second sliding sleeve 75 is installed on the second fixed seat 71, and the guide rod 74 is in sliding fit with the second sliding sleeve 75, so as to further improve the movement stability and smoothness of the second force bearing member 72 relative to the second fixed seat 71.

[0057] Optionally, referring to Figure 3 The second load assembly 7 further comprises a second nut 79, the second force bearing member 72 passes through the second fixed seat 71 and is in threaded connection with the second nut 79, and the second nut 79 can limit the second force bearing member 72 from being separated from the second fixed seat 71.

[0058] Optionally, referring to Figure 1 In the embodiment, the second load assembly 7 further comprises a plurality of second bolts 76, the plurality of second bolts 76 connect the second fixed seat 71 and the test seat 1. In other embodiments, the second fixed seat 71 can also be connected with the test seat 1 by welding or the like.

[0059] Optionally, referring to Figure 3 The second load assembly 7 further comprises a plurality of second pins 77, the plurality of second pins 77 are arranged at intervals, and each second pin 77 is respectively inserted with the second fixed seat 71 and the test seat 1. By arranging the second pin 77, the position of the second fixed seat 71 relative to the test seat 1 can be kept stable under the impact of the impact seat 3.

[0060] Optionally, referring to Figure 1 The second load assembly 7 further comprises a second scale 78 arranged on the test seat 1, and the second scale 78 is used for indicating the current position of the second force bearing member 72. By arranging the second scale 78, the deformation amount of the second spring 73 in the process of moving from the middle position to the first limit position of the impact seat 3 can be measured, and then multiplied by the elastic coefficient of the second spring 73, so as to obtain the maximum tension of the output rod of the to-be-tested actuator when retracted.

[0061] Optionally, referring to Figure 1 The second load assembly 7 comprises a plurality of second springs 73, the elastic coefficients of the plurality of second springs 73 are different, and one of the plurality of second springs 73 is arranged between the second force bearing member 72 and the second fixed seat 71. According to different models of the to-be-tested actuator, corresponding second springs 73 need to be selected, and the plurality of second springs 73 are arranged in the embodiment to meet the test requirements of different models of the to-be-tested actuator. It can be understood that the elastic coefficient of the second spring 73 installed on the second force bearing member 72 is matched with the model of the to-be-tested actuator.

[0062] Optionally, referring to Figure 1, the second load assembly 7 is close to the mounting base 2 relative to the first load assembly 4, the execution piece service life test device comprises two second load assemblies 7, and the two second load assemblies 7 are symmetrically arranged on two sides of the mounting base 2. In this way, the two second load assemblies 7 are in contact with the impact seat 3 from two sides of the mounting base 2 respectively, so that the impact seat 3 is balanced when colliding with the two second force receiving members 72. Preferably, the two second load assemblies 7 are symmetrically arranged on two sides of the execution piece to be tested along the width direction of the test seat 1, so as to further improve the balance of the impact seat 3 when colliding with the two second force receiving members 72.

[0063] Optionally, referring to Figure 1 and Figure 4 , the execution piece service life test device further comprises a first impact head 8 and two second impact heads 9, the first impact head 8 and the two second impact heads 9 are all installed on the impact seat 3, and the first impact head 8 and the two second impact heads 9 are all made of elastic material, the first impact head 8 is used for impacting the first force receiving member 42, and the two second impact heads 9 are used for impacting the two second force receiving members 72 respectively. In this way, the first impact head 8 and the second impact head 9 can absorb the impact force generated when colliding, so as to avoid the impact seat 3 and the first force receiving member 42 and the second force receiving member 72 from being in rigid contact, and further avoid the execution piece service life test device from being damaged. Specifically, the first impact head 8 and the two second impact heads 9 are all made of rubber material or super glue material.

[0064] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. An actuator service life testing apparatus characterized by comprising: The device comprises: a test seat (1); a mounting seat (2) fixed to the test seat (1), the mounting seat (2) being used for mounting an actuator to be tested; a striking seat (3) slidingly connected with the mounting seat (2) along a set direction, and the striking seat (3) being used for rotatingly connecting with an output rod of the actuator to be tested; a first load assembly (4) comprising a first fixed seat (41) fixed to the test seat (1), a first force bearing piece (42) slidingly connected with the first fixed seat (41) along a set direction, and a first spring (43) arranged between the first force bearing piece (42) and the first fixed seat (41), the first spring (43) being configured to apply an elastic force to the first force bearing piece (42) and make the first force bearing piece (42) always have a movement trend close to the striking seat (3), and the striking seat (3) being capable of striking the first force bearing piece (42) under the driving of the actuator to be tested.

2. The implement service life testing device according to claim 1, characterized by The first force bearing piece (42) comprises a force bearing block (421) and two guide columns (422), both of the guide columns (422) being fixedly connected with the force bearing block (421), and both of the guide columns (422) being slidingly connected with the first fixed seat (41) along the set direction; The first load assembly (4) comprises a spring group, the spring group comprising two first springs (43), the two first springs (43) of the spring group being respectively sleeved on the two guide columns (422), both ends of each first spring (43) being respectively abutted with the force bearing block (421) and the first fixed seat (41), and the first spring (43) being in a compressed state.

3. The implement service life testing device according to claim 2, characterized by The first load assembly (4) comprises a plurality of spring groups, the elastic coefficients of the two first springs (43) of each spring group being the same, the elastic coefficient of the first spring (43) of one spring group being different from the elastic coefficient of the first spring (43) of another spring group in any two spring groups, and the plurality of spring groups being alternatively arranged on the first force bearing piece (42).

4. The implement service life testing device of claim 1, wherein The first load assembly (4) further comprises a first scale (47) arranged on the test seat (1), the first scale (47) being used for indicating the current position of the first force bearing piece (42).

5. The implement service life testing device according to any one of claims 1 to 4, characterized in that, The actuator service life testing device further comprises a second load assembly (7), and the second load assembly (7) and the first load assembly (4) are arranged on two sides of the striking seat (3) along the set direction. The second load assembly (7) comprises a second fixing base (71) fixed to the test base (1), a second force bearing member (72) in sliding connection with the second fixing base (71) in a set direction, and a second spring (73) arranged between the second force bearing member (72) and the second fixing base (71), the second spring (73) being configured to apply an elastic force to the second force bearing member (72) and make the second force bearing member (72) always have a movement trend close to the impact base (3), the impact base (3) being capable of impacting the second force bearing member (72) under the driving of a to-be-tested actuator.

6. The implement service life testing device of claim 5, wherein The second load assembly (7) further comprises a guide rod (74), one end of the guide rod (74) being fixed to the second force bearing member (72), and the other end of the guide rod (74) being in sliding connection with the second fixing base (71) in the set direction.

7. The implement service life testing device of claim 5, wherein The second load assembly (7) is close to the mounting base (2) relative to the first load assembly (4), and the actuator service life test device comprises two second load assemblies (7), which are arranged symmetrically and spaced apart on two sides of the mounting base (2).

8. The implement service life testing device of claim 7, wherein The actuator service life test device further comprises a first impact head (8) and two second impact heads (9), the first impact head (8) and the two second impact heads (9) are all mounted on the impact base (3), and the first impact head (8) and the two second impact heads (9) are all made of elastic material, the first impact head (8) is used for impacting the first force bearing member (42), and the two second impact heads (9) are used for impacting the two second force bearing members (72) respectively.

9. The implement service life testing device of claim 5, wherein The second load assembly (7) further comprises a second scale (78) arranged on the test base (1), the second scale (78) being used for indicating the current position of the second force bearing member (72).

10. The implement service life testing device of claim 5, wherein The second load assembly (7) comprises a plurality of second springs (73), the elastic coefficients of the plurality of second springs (73) are different, and one of the plurality of second springs (73) is arranged between the second force bearing member (72) and the second fixing base (71).

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