Compression testing machine and method based on gas spring shock absorber production

Abstract

The invention relates to a compression testing machine and method based on gas spring shock absorber production, and relates to the related field of pneumatic spring experiments.The compression testing machine comprises a bottom plate and a tempered glass protective cover detachably installed on the bottom plate, a supporting square column is fixed to the bottom plate, and the compression testing machine further comprises a positioning mechanism installed on one side of the supporting square column; the positioning mechanism is used for limiting the position of the gas spring shock absorber body, the fixed weight experiment mechanism is installed on the supporting square column, and natural falling force with specified weight is applied to the gas spring shock absorber body through the fixed weight experiment mechanism. The specified total amount applied by the constant weight experiment mechanism is adjusted through an adjusting assembly in the constant weight experiment mechanism, falling impact force with specified weight is applied to the gas spring shock absorber body through the constant weight experiment mechanism so as to simulate jolt of a vehicle in the form, and the falling impact force is based on the weight of an experiment box. The weight of the experiment box can be adjusted through the adjusting assembly.

Description

Technical Field

[0001] The present invention relates to the field related to pneumatic spring experiments, and specifically to a compressive testing machine and method based on the production of pneumatic spring shock absorbers. Background Technique

[0002] The pneumatic spring shock absorber, also known as the pneumatic shock absorber, works by controlling air pressure to change the height of the vehicle body. It includes an elastic rubber airbag shock absorber, a pneumatic control system, a trunk air storage tank, an electronic control system, etc.

[0003] When designing and producing pneumatic shock absorbers, in order to obtain the data of the shock absorbers for improving the weak points, experimental equipment is required. For this purpose, a large-scale compression spring testing machine is disclosed, with the publication number: CN207528553U; This equipment applies a specified force to the spring through a cylinder to test the compression degree of the spring, but this equipment is not suitable for pneumatic spring shock absorbers. Although pneumatic spring shock absorbers also need to test their compression stroke, different from ordinary springs, pneumatic shock absorbers are used on vehicles. When a pneumatic shock absorber is used on a vehicle, the force applied to the pneumatic shock absorber is the entire vehicle and the bumps during vehicle jolts. As a result, the force received by the pneumatic shock absorber suddenly increases, and the pneumatic shock absorber unloads the force to ensure the comfort of vehicle driving. If a cylinder is directly used to apply a specified force to the pneumatic shock absorber, the unloading ability of the pneumatic shock absorber cannot be tested. Summary of the Invention

[0004] The purpose of the present invention is to provide a compressive testing machine and method based on the production of pneumatic spring shock absorbers to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: A compressive testing machine based on the production of pneumatic spring shock absorbers includes a bottom plate and a tempered glass protective cover detachably installed on the bottom plate. A support square column is fixed on the bottom plate, and further includes: A positioning mechanism installed on one side of the support square column to limit the position of the pneumatic spring shock absorber body through the positioning mechanism; A fixed-weight experiment mechanism installed on the support square column to apply a natural falling force of a specified weight to the pneumatic spring shock absorber body, and adjust the specified total amount applied by the fixed-weight experiment mechanism through an adjustment component in the fixed-weight experiment mechanism; A pneumatic adjustment component installed on the bottom plate to adjust the air pressure of the pneumatic spring shock absorber body through the pneumatic adjustment component; A feedback component installed on the support square column, the feedback component is connected to the pneumatic spring shock absorber body, and records the unloading state of the pneumatic spring shock absorber body when it is stressed through the feedback component.

[0006] As a further solution of the present invention: the positioning mechanism includes two fasteners slidably mounted on the bottom plate, the bottoms of the two fasteners are fixed with travel limit blocks, and the two travel limit blocks are slidably matched with the travel limit grooves opened on the bottom plate; Two travel limit blocks are also slidably installed on the opposite side of the two fasteners, and pushers for pushing the fasteners are fixed on the opposite side of the two travel limit blocks. Guide rods are fixed on the two pushers, and force guides are installed on the guide rods. The force guides cooperate with the fixed weight test mechanism and are detachably connected to the gas spring shock absorber body. Two bidirectional screw rods are also rotatably installed on the base plate, and the two bidirectional screw rods are connected by a transmission chain. Both ends of the two bidirectional screw rods are sleeved with threaded sleeves that match the threads therewith. The two threaded sleeves on one side are fixed by a transmission plate, and the transmission plate is fixed to the push piece.

[0007] As a further solution of the present invention: the force guiding member includes a limiter slidably mounted on the two guide rods, the two limiters are fixed with wear-resistant parts, the two guide rods are sleeved with springs, one end of the spring is fixed to the limiter and the other end is fixed to the guide rod; An insert shaft is fixed on one side opposite to the two limit members; Among them, a connecting block is fixed on one wear-resistant part facing the other wear-resistant part, and a connecting groove matching with the connecting block is opened on the other wear-resistant part. The two wear-resistant parts are matched with the fixed weight test mechanism.

[0008] As a further solution of the present invention: the air pressure adjustment component includes an air pump fixed on the base plate, and the output end of the air pump is connected to the gas spring shock absorber body through a delivery pipe.

[0009] As a further solution of the present invention: the fixed weight experiment mechanism comprises an experiment box, a sliding sleeve is fixed to the side of the experiment box facing the supporting square column, the sliding sleeve is slidably matched with a sliding rod fixed on the supporting square column, and force blocks are fixed on both sides of the experiment box; Electric slide rails are fixed on both sides of the supporting square column, electric slide blocks are slidably installed on the electric slide rails, and a lifting plate is slidably installed on the electric slide block along the length direction, and a No. 1 electric push rod is fixed on the electric slide block, and the movable shaft of the No. 1 electric push rod is fixed to the lifting plate; A release piece that matches the experimental box is also installed on the supporting square column.

[0010] As a further solution of the present invention: the release member includes an assembly groove provided on the supporting square column, a limit plate is slidably installed in the assembly groove, and a mounting groove is also provided on the supporting square column, the mounting groove is communicated with the assembly groove, a No. 2 electric push rod is fixed in the mounting groove, and the movable shaft of the No. 2 electric push rod is fixed to the limit plate; The experimental box is rotatably installed with rollers on one side facing the supporting square column, and the rollers cooperate with the supporting square column.

[0011] As a further scheme of the present invention: The adjustment assembly includes a support cover fixed on the supporting square column, and the support cover is slidably matched with the experimental box; A plurality of receiving grooves are opened at the top of the experimental box, and breeding columns are slidably installed in the receiving grooves; A support plate is fixed in the support cover, the support plate is slidably matched with the breeding column, and locking and releasing parts are arranged on the breeding column and in the receiving groove; Among them, the weights of the plurality of breeding columns are the same.

[0012] As a further scheme of the present invention: The locking and releasing part includes guiding grooves opened on the support plate and the receiving groove; Two first limiting blocks are symmetrically fixed at the top of the breeding column, two second limiting blocks are symmetrically fixed at the bottom of the breeding column, and a clamping groove communicated with the guiding groove is opened at the bottom of the receiving groove; Among them, the second limiting block and the first limiting block are arranged in a staggered manner; Driving parts are installed on the plurality of breeding columns.

[0013] As a further scheme of the present invention: The driving part includes a servo motor fixed in the support cover, a docking block is fixed at the end of the output shaft of the servo motor, and the docking block is matched with a docking groove opened on the breeding column; Among them, the number of the servo motors and the docking blocks is the same as that of the breeding columns.

[0014] The present invention also provides a compressive test method based on the production of gas spring shock absorbers. Using the compressive testing machine based on the production of gas spring shock absorbers, it includes the following steps: Step 1, limit the gas spring shock absorber body through the positioning mechanism, so that the gas spring shock absorber body will not shift or tip over during the experiment; Step 2, conduct an experiment with a specified weight on the gas spring shock absorber body through the fixed-weight experiment mechanism, and adjust the weight of the experiment of the fixed-weight experiment mechanism through the adjustment assembly; Step 3, adjust the air pressure of the gas spring shock absorber body through the air pressure adjustment part to test the state of the gas spring shock absorber body under different air pressures.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The air spring shock absorber body is limited by a positioning mechanism to ensure that the air spring shock absorber body will not tip over or shift during the experiment, and the force received by the air spring shock absorber body during the experiment is directly transmitted to the shock absorber through a force guiding member. Since the connection position between the shock absorber and the vehicle is the end of the shock absorber, damage caused by deformation due to force at this position is avoided; 2. A dropping impact force of a specified weight is applied to the air spring shock absorber body through a fixed weight experiment mechanism to simulate the bumps during vehicle driving. This dropping impact force is based on the weight of the experimental box. The present invention can adjust the weight of the experimental box through an adjustment component, and the adjustment range can be controlled to test the limit of the air spring shock absorber body, thereby facilitating improvement; 3. The adjustment component of the present invention has a simple and reliable structure, can reduce the production cost of the equipment from a practical perspective, and is easy to operate. Description of the Drawings

[0016] Figure 1 It is a right side view of the overall compressive testing machine produced based on the air spring shock absorber.

[0017] Figure 2 It is a schematic structural diagram inside the tempered glass protective cover of the compressive testing machine produced based on the air spring shock absorber.

[0018] Figure 3 It is a schematic structural diagram of the positioning mechanism in the compressive testing machine produced based on the air spring shock absorber.

[0019] Figure 4 It is a schematic structural diagram of the electric slider in the compressive testing machine produced based on the air spring shock absorber.

[0020] Figure 5 It is Figure 4 a partial enlarged view of part A in

[0021] Figure 6 It is a schematic position diagram of the roller in the compressive testing machine produced based on the air spring shock absorber.

[0022] Figure 7 It is a schematic structural diagram of the feedback member in the compressive testing machine produced based on the air spring shock absorber.

[0023] Figure 8 It is a schematic structural diagram of the fixed weight experiment mechanism in the compressive testing machine produced based on the air spring shock absorber.

[0024] Figure 9 It is Figure 8 a partial enlarged view of part B in

[0025] Figure 10 It is Figure 8 a partial enlarged view of part C in

[0026] Figure 11 It is a sectional view of the experimental box in a compression testing machine produced based on a gas spring shock absorber.

[0027] Figure 12 It is Figure 11 a partial enlarged view of the position D in

[0028] Figure 13 a top-down perspective view of the support plate and the experimental box in a compression testing machine produced based on a gas spring shock absorber.

[0029] Figure 14 It is Figure 13 a partial enlarged view of the position F in

[0030] In the figure: 1. Bottom plate; 2. Tempered glass protective cover; 3. Support square column; 4. Support cover; 401. Experimental box; 402. Support plate; 403. Servo; 404. Docking block; 405. Weighing column; 406. Docking groove; 407. First limit block; 408. Accommodating groove; 409. Guide groove; 4010. Second limit block; 4011. Card slot; 5. Gas spring shock absorber body; 6. Transmission plate; 601. Bi-directional lead screw; 602. Guide rod; 603. Fastener; 604. Pushing piece; 605. Spring; 606. Stroke limit block; 607. Transmission chain; 608. Limiting piece; 609. Wear-resistant piece; 6010. Connecting block; 6011. Stroke limit groove; 7. Air pump; 701. Delivery pipe; 8. Electric slide rail; 801. Electric slider; 802. First electric push rod; 803. Lifting plate; 804. Force-bearing block; 9. Assembly groove; 901. Second electric push rod; 902. Limiting plate; 903. Roller; 10. Sliding sleeve; 1001. Slide rod; 11. State collection device; 1101. Connecting piece. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In addition, an element in the present invention is referred to as being "fixed to" or "disposed on" another element, and it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manners.

[0033] For example, see Figures 1 to 14 A compression tester based on a gas spring shock absorber comprises a bottom plate 1 and a tempered glass protective cover 2 detachably mounted on the bottom plate 1, a supporting square column 3 is fixed on the bottom plate 1, and further comprises: A positioning mechanism installed on one side of the supporting square column 3, through which the gas spring shock absorber body 5 is positioned; A fixed weight test mechanism installed on the supporting square column 3 applies a natural falling force of a specified weight to the gas spring shock absorber body 5 through the fixed weight test mechanism, and the specified total amount applied by the fixed weight test mechanism is adjusted through an adjustment component in the fixed weight test mechanism; An air pressure adjusting member installed on the bottom plate 1, through which the air pressure of the air spring shock absorber body 5 is adjusted; The feedback component is installed on the supporting square column 3, and the feedback component is connected to the gas spring shock absorber body 5. The feedback component records the unloading state of the gas spring shock absorber body 5 when it is subjected to force.

[0034] In the embodiment of the present invention, when conducting an experiment, the gas spring shock absorber body 5 is limited by a positioning mechanism so that the gas spring shock absorber body 5 will not be displaced or tipped over during the experiment; A fixed-weight force test is performed on the gas spring shock absorber body 5 through a fixed-weight test mechanism. During the test, the fixed-weight test mechanism will be located directly above the gas spring shock absorber body 5 and throw a test piece of a specified weight. The test piece will fall onto the gas spring shock absorber body 5 in a natural falling manner, so as to record the unloading state of the gas spring shock absorber body 5 after the force is applied through the feedback member; The air pressure of the pneumatic spring of the gas spring shock absorber body 5 can be adjusted by the air pressure adjusting member, so that the gas spring shock absorber body 5 can obtain data of the gas spring shock absorber body 5 under different air pressures in cooperation with the fixed weight test mechanism.

[0035] The feedback component includes a state collection device 11, which is connected to the gas spring shock absorber body 5 through a connecting piece 1101. When the gas spring shock absorber body 5 is subjected to force, the connecting piece 1101 will be driven to move upright, so that the movement trajectory of the connecting piece 1101 is collected through the state collection device 11 to obtain the movement trajectory of the gas spring shock absorber body 5 after the force is applied.

[0036] Embodiment 2 is distinguished from Embodiment 1 in that: the positioning mechanism comprises two fasteners 603 slidably mounted on the bottom plate 1, and a travel limit block 606 is fixed at the bottom of the two fasteners 603, and the two travel limit blocks 606 are slidably matched with the travel limit groove 6011 provided on the bottom plate 1; On the opposite sides of the two fasteners 603, there are also two stroke limit blocks 606 slidably installed. On the opposite sides of the two stroke limit blocks 606, there are push members 604 for pushing the fasteners 603. On both of the two push members 604, there are guide rods 602 installed. A force guiding member is installed on the guide rod 602. The force guiding member cooperates with the fixed weight testing mechanism and is detachably connected to the air spring shock absorber body 5. On the bottom plate 1, there are also two bidirectional lead screws 601 rotatably installed. The two bidirectional lead screws 601 are connected by a transmission chain 607. Threaded sleeves that are threadedly engaged with them are sleeved at both ends of the two bidirectional lead screws 601. The two threaded sleeves on one side are fixed by a transmission plate 6, and the transmission plate 6 is fixed to the push member 604.

[0037] In the embodiment of the present invention, when positioning the air spring shock absorber body 5 before the experiment, first place the air spring shock absorber body 5 between the two fasteners 603. The two fasteners 603 achieve stroke limitation under the cooperation of the stroke limit blocks 606 and the stroke limit grooves 6011, so that when the two fasteners 603 move in opposite directions to the end of the stroke, the air spring shock absorber body 5 can be accommodated when placed on the fasteners 603, and the air spring shock absorber body 5 is clamped and fixed when the two fasteners 603 move relatively. Drive one of the bidirectional lead screws 601 to rotate by a motor / manually. When one of the bidirectional lead screws 601 rotates, drive the other bidirectional lead screw 601 to rotate through the transmission chain 607, so that the two bidirectional lead screws 601 rotate synchronously. When the bidirectional lead screw 601 rotates, drive the threaded sleeves and the two transmission plates 6 on both sides to move relatively / oppositely through the threaded engagement with the threaded sleeves. When the two transmission plates 6 move relatively, drive the push member 604 and give the two stroke limit blocks 606 relative movement through the push member 604, so as to clamp and fix the air spring shock absorber body 5 by pushing the two fasteners 603. Among them, the guide rod 602 moves synchronously with the air spring shock absorber body 5 and the push member 604.

[0038] The force guiding member includes a limiting member 608 slidably installed on the two guide rods 602. Wear-resistant members 609 are fixed on both of the two limiting members 608. Springs 605 are sleeved on the two guide rods 602. One end of the spring 605 is fixed to the limiting member 608 and the other end is fixed to the guide rod 602. On the opposite sides of the two limiting members 608, there is a fixed insertion shaft. Among them, on one side of one wear-resistant member 609 facing the other wear-resistant member 609, there is a connecting block 6010 fixed. A connecting groove that cooperates with the connecting block 6010 is provided on the other wear-resistant member 609. The two wear-resistant members 609 cooperate with the fixed weight testing mechanism.

[0039] In an embodiment of the present invention, one end of the gas spring shock absorber body 5 is connected to the vehicle frame, and the other end is connected to the cross arm / fork arm. The end connected to the vehicle frame is fixed by bolts, and there must be a connection part. This connection part is usually a U-shaped frame with two pin holes. When conducting experiments, directly applying gravity to the U-shaped frame will inevitably cause deformation of the U-shaped part, thereby affecting the experimental data, and it is impossible to conduct secondary experiments after deformation. The solution of the present invention is as follows: After the gas spring shock absorber body 5 is placed on the two fasteners 603, adjust the position of the pin holes of the U-shaped frame of the gas spring shock absorber body 5 so that the pin holes are concentric with the insertion shafts of the two limit members 608; When the two transmission plates 6 and the pusher 604 move relative to each other, they will drive the guide rod 602 to move relative to each other. When the two transmission plates 6 move to the end of the stroke, insert the insertion shafts of the two limit members 608 into the pin holes of the U-shaped frame of the gas spring shock absorber body 5, and insert the connecting block 6010 into the connecting groove; When the fixed-weight experiment mechanism works, the applied force will be applied to the connecting block 6010 and transmitted to the gas spring shock absorber body 5 through the limit member 608 and the insertion shaft; When the wear-resistant member 609 is stressed, the wear-resistant member 609 and the limit member 608 both descend synchronously. Among them, in order to prevent the limit member 608 from rotating when the guide rod 602 and the limit member 608 slide relative to each other, a plurality of limit strips are fixed on the guide rod 602 at equal intervals in the circumferential direction, and the limit strips are slidably matched with the limit grooves formed on the limit member 608 so that the limit member 608 will not rotate when sliding; It should be noted that the top of the wear-resistant member 609 is made of rubber and is replaceable. Of course, other materials can also be used, and the present invention does not make specific limitations.

[0040] The air pressure adjusting member includes an air pump 7 fixed on the bottom plate 1, and the output end of the air pump 7 is communicated with the gas spring shock absorber body 5 through a delivery pipe 701.

[0041] In an embodiment of the present invention, when the air pump 7 works, it pumps air into the gas spring shock absorber body 5 through the delivery pipe 701 to increase the height of the pneumatic spring; Among them, the delivery pipe 701 needs to be manually installed. When positioning the gas spring shock absorber body 5, the air inlet end of the gas spring shock absorber body 5 should face away from the support square column 3.

[0042] Embodiment 3 is different from Embodiment 1 and / or Embodiment 2 in that: the fixed-weight experiment mechanism includes an experiment box 401, a sliding sleeve 10 is fixed on one side of the experiment box 401 facing the support square column 3, the sliding sleeve 10 is slidably matched with a sliding rod 1001 fixed on the support square column 3, and force-receiving blocks 804 are fixed on both sides of the experiment box 401; On both sides of the supporting square column 3, electric slide rails 8 are fixedly installed. Electric sliders 801 are slidably installed on the electric slide rails 8. A lifting plate 803 is slidably installed on the electric slider 801 along the length direction. A first electric push rod 802 is fixed on the electric slider 801, and the movable shaft of the first electric push rod 802 is fixed to the lifting plate 803; A releasing member cooperating with the experimental box 401 is further installed on the supporting square column 3.

[0043] In the embodiment of the present invention, the electric slider 801 can slide on the electric slide rail 8, and then drive the lifting plate 803 to slide along with it through the electric slider 801. When the first electric push rod 802 works, the lifting plate 803 is driven to slide by extending / retracting the movable shaft; The releasing member is used to limit / release the experimental box 401; When the experimental box 401 is released and falls naturally, it impacts the connecting block 6010 by natural falling, so as to transfer the gravity during falling to the air spring shock absorber body 5 through the connecting block 6010, the limiting member 608, and the insertion shaft. As the air spring shock absorber body 5 unloads the force, the experimental box 401 will be in a static state. When the experimental box 401 is not in a static state, the electric slider 801 descends to the lowest position. At this time, the lifting plate 803 is in a retracted state, that is, the lifting plate 803 will not contact the force-bearing block 804 when descending. When the experimental box 401 is stationary, the lifting plate 803 extends and then rises, driving the lifting plate 803 and the experimental box 401 to rise to the highest position by the way of the lifting plate 803 supporting the force-bearing block 804, and then the experimental box 401 is limited by the releasing member.

[0044] The releasing member includes an assembly groove 9 opened on the supporting square column 3. A limiting plate 902 is slidably installed in the assembly groove 9. An installation groove is further opened on the supporting square column 3, and the installation groove communicates with the assembly groove 9. A second electric push rod 901 is fixed in the installation groove, and the movable shaft of the second electric push rod 901 is fixed to the limiting plate 902; A roller 903 is rotatably installed on one side of the experimental box 401 facing the supporting square column 3, and the roller 903 cooperates with the supporting square column 3.

[0045] In the embodiment of the present invention, when the second electric push rod 901 works, it drives the limiting plate 902 to extend / retract. When the experimental box 401 rises to the highest position, the limiting plate 902 is extended by the second electric push rod 901 to limit the roller 903 and the experimental box 401. When it is necessary to release the experimental box 401, the limiting plate 902 is driven to retract by the second electric push rod 901 to release the limitation on the roller 903 and the experimental box 401, so that the experimental box 401 falls naturally; Among them, the roller 903 can reduce the friction when the limiting plate 902 releases the limitation.

[0046] The adjustment component includes a support cover 4 fixed on the support square column 3, and the support cover 4 is in sliding fit with the experimental box 401; A plurality of receiving grooves 408 are formed in the top of the experimental box 401, and breeding columns 405 are slidably installed in the receiving grooves 408; A support plate 402 is fixed in the support cover 4, the support plate 402 is in sliding fit with the breeding column 405, and locking and releasing members are arranged on the breeding column 405 and in the receiving groove 408; Among them, the weights of the plurality of breeding columns 405 are the same.

[0047] In the embodiment of the present invention, each breeding column 405 on the experimental box 401 can be selected whether to fall with the experimental box 401 through the locking and releasing member. The breeding column 405 that does not fall with the experimental box 401 is limited to the support plate 402 through the locking and releasing member, and the overall weight of the experimental box 401 is determined by the number of breeding columns 405 that fall with the experimental box 401.

[0048] The locking and releasing member includes a guiding groove 409 formed in the support plate 402 and the receiving groove 408; Two first limiting blocks 407 are symmetrically fixed on the top of the breeding column 405, two second limiting blocks 4010 are symmetrically fixed on the bottom of the breeding column 405, and a clamping groove 4011 communicating with the guiding groove 409 is formed in the bottom of the receiving groove 408; Among them, the second limiting block 4010 and the first limiting block 407 are arranged in a staggered manner; Driving members are installed on the plurality of breeding columns 405.

[0049] In the embodiment of the present invention, please refer to Figure 14 and Figure 13 , when selecting the total amount of the fall of the experimental box 401, the breeding column 405 is driven to rotate by the driving member, and the rotation has two states to Figure 14 be the normal state: State 1: Under normal conditions, the second limiting block 4010 is in the guiding groove 409, and at the same time, the first limiting block 407 is in a staggered state relative to the guiding groove 409, so that relative movement can occur between the experimental box 401 and the breeding column 405. When the experimental box 401 descends, the breeding column 405 does not follow the experimental box 401 to descend; Since the first limiting block 407 is in a staggered state relative to the guiding groove 409, the support plate 402 limits the first limiting block 407 and the breeding column 405, and the breeding column 405 is suspended on the support plate 402; State 2: When the breeding column 405 rotates, the second limiting block 4010 moves into the card slot 4011. At the same time, the first limiting block 407 moves to coincide with the guiding slot 409. The coincidence of the first limiting block 407 and the guiding slot 409 corresponds to the support plate 402 releasing the limit on the breeding column 405 and the first limiting block 407, so that when the experimental box 401 descends, the breeding column 405 follows the experimental box 401 to descend. And through the limit of the card slot 4011 and the second limiting block 4010, it is ensured that the breeding column 405 and the experimental box 401 will not separate when the breeding column 405 follows the experimental box 401 to descend, and the integrity between the two is improved, so that when the experimental box 401 contacts the wear-resistant part 609, the gravity of the experimental box 401 and the breeding column 405 is unified; By the above-mentioned State 1 and State 2, the weight of the experimental box 401 is adjusted, and in this way, the structure is relatively simple.

[0050] The driving member includes a servo motor 403 fixed in the support cover 4. A docking block 404 is fixed to the end of the output shaft of the servo motor 403, and the docking block 404 is matched with a docking groove 406 formed on the breeding column 405; Among them, the number of the servo motors 403 and the docking blocks 404 is the same as that of the breeding columns 405.

[0051] In the embodiment of the present invention, when the experimental box 401 and the breeding column 405 are in the highest position, the docking block 404 is inserted into the docking groove 406. When the docking block 404 works, the breeding column 405 is driven to rotate by the docking block 404; A controller is fixed to the top of the support cover 4, and all the servo motors 403 are electrically connected to the controller.

[0052] The present invention also provides a compressive test method based on the production of gas spring shock absorbers. Using the compressive testing machine based on the production of gas spring shock absorbers, it includes the following steps: Step 1, limit the gas spring shock absorber body 5 through the positioning mechanism, so that the gas spring shock absorber body 5 will not shift or tip over during the experiment; Step 2, conduct an experiment on the gas spring shock absorber body 5 with a specified weight through the fixed-weight experiment mechanism, and adjust the weight of the experiment of the fixed-weight experiment mechanism through the adjustment component; Step 3, adjust the air pressure of the gas spring shock absorber body 5 through the air pressure adjustment part to test the state of the gas spring shock absorber body 5 under different air pressures.

[0053] It is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0054] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is merely for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A compression tester based on a gas spring shock absorber, comprising a base plate (1) and a tempered glass protective cover (2) detachably mounted on the base plate (1), a supporting square column (3) being fixed on the base plate (1), characterized in that: Also includes: A positioning mechanism installed on one side of the supporting square column (3), through which the position of the gas spring shock absorber body (5) is restricted; A fixed weight test mechanism is installed on the supporting square column (3), and a natural falling force of a specified weight is applied to the gas spring shock absorber body (5) through the fixed weight test mechanism, and the specified total amount applied by the fixed weight test mechanism is adjusted through an adjustment component in the fixed weight test mechanism; An air pressure adjusting member installed on the bottom plate (1), through which the air pressure of the air spring shock absorber body (5) is adjusted; A feedback component is mounted on the supporting square column (3), the feedback component being connected to the gas spring shock absorber body (5), and recording the force release state of the gas spring shock absorber body (5) when the force is applied.

2. A compression testing machine based on the production of gas spring shock absorbers according to claim 1, characterized in that: The positioning mechanism comprises two fasteners (603) slidably mounted on the base plate (1), a travel limit block (606) being fixed to the bottom of the two fasteners (603), and the two travel limit blocks (606) are slidably matched with the travel limit slots (6011) provided on the base plate (1); Two travel limit blocks (606) are also slidably mounted on the opposite side of the two fasteners (603); a push piece (604) for pushing the fasteners (603) is fixed on the opposite side of the two travel limit blocks (606); a guide rod (602) is fixed on the two push pieces (604); a force guide piece is mounted on the guide rod (602); the force guide piece cooperates with the fixed weight test mechanism and is detachably connected to the gas spring shock absorber body (5); Two bidirectional screw rods (601) are also rotatably mounted on the base plate (1). The two bidirectional screw rods (601) are connected via a transmission chain (607). Both ends of the two bidirectional screw rods (601) are sleeved with threaded sleeves that threadably match the two bidirectional screw rods (601). The two threaded sleeves on one side are fixed via a transmission plate (6), and the transmission plate (6) is fixed to the push piece (604).

3. A compression testing machine based on the production of gas spring shock absorbers according to claim 2, characterized in that: The force guiding member comprises a limiter (608) slidably mounted on the two guide rods (602), the two limiters (608) are both fixed with a wear-resistant member (609), the two guide rods (602) are both sleeved with a spring (605), one end of the spring (605) is fixed to the limiter (608) and the other end is fixed to the guide rod (602); An insert shaft is fixed on one side opposite to the two stoppers (608); A connecting block (6010) is fixed to one side of one wear-resistant part (609) facing the other wear-resistant part (609), and a connecting groove cooperating with the connecting block (6010) is provided on the other wear-resistant part (609). The two wear-resistant parts (609) cooperate with the fixed weight test mechanism.

4. A compression testing machine based on the production of gas spring shock absorbers according to claim 3, characterized in that: The air pressure adjustment component comprises an air pump (7) fixed on the base plate (1), and the output end of the air pump (7) is connected to the air spring shock absorber body (5) through a delivery pipe (701).

5. A compression testing machine based on the production of gas spring shock absorbers according to claim 2, characterized in that: The fixed weight experiment mechanism comprises an experiment box (401), a sliding sleeve (10) is fixed on one side of the experiment box (401) facing the supporting square column (3), the sliding sleeve (10) is slidably matched with a sliding rod (1001) fixed on the supporting square column (3), and force blocks (804) are fixed on both sides of the experiment box (401); Electric slide rails (8) are fixed on both sides of the supporting square column (3), an electric slider (801) is slidably mounted on the electric slide rail (8), a lifting plate (803) is slidably mounted on the electric slider (801) along the length direction, a No. 1 electric push rod (802) is fixed on the electric slider (801), and a movable shaft of the No. 1 electric push rod (802) is fixed to the lifting plate (803); A release piece that cooperates with the experimental box (401) is also installed on the supporting square column (3).

6. A compression testing machine based on the production of gas spring shock absorbers according to claim 5, characterized in that: The release member comprises an assembly groove (9) provided on the supporting square column (3), a limit plate (902) being slidably installed in the assembly groove (9), and a mounting groove is further provided on the supporting square column (3), the mounting groove being in communication with the assembly groove (9), a second electric push rod (901) being fixed in the mounting groove, and a movable shaft of the second electric push rod (901) being fixed to the limit plate (902); The experimental box (401) is rotatably mounted with a roller (903) on one side facing the supporting square column (3), and the roller (903) cooperates with the supporting square column (3).

7. A compression testing machine based on the production of gas spring shock absorbers according to claim 5, characterized in that: The adjustment assembly comprises a support cover (4) fixed on the support square column (3), and the support cover (4) is slidably matched with the experimental box (401); The top of the experimental box (401) is provided with a plurality of receiving grooves (408), and a breeding column (405) is slidably installed in the receiving grooves (408); A support plate (402) is fixed inside the support cover (4), the support plate (402) is slidably matched with the breeding column (405), and a locking and releasing member is provided on the breeding column (405) and in the receiving groove (408); The weights of the plurality of breeding columns (405) are the same.

8. A compression testing machine based on the production of gas spring shock absorbers according to claim 7, characterized in that: The locking and releasing member comprises a guide groove (409) formed on the support plate (402) and the receiving groove (408); Two No. 1 limit blocks (407) are symmetrically fixed on the top of the breeding column (405), two No. 2 limit blocks (4010) are symmetrically fixed on the bottom of the breeding column (405), and a clamping groove (4011) connected to the guide groove (409) is provided at the bottom of the accommodating groove (408); Wherein, the second limit block (4010) and the first limit block (407) are staggered; A driving member is installed on each of the plurality of mating columns (405).

9. A compression testing machine based on the production of gas spring shock absorbers according to claim 8, characterized in that: The driving member comprises a steering gear (403) fixed in the support cover (4), a docking block (404) being fixed to the end of the output shaft of the steering gear (403), and the docking block (404) being matched with a docking groove (406) provided on the mating column (405); The number of the steering gears (403) and docking blocks (404) is the same as that of the mating columns (405).

10. A compression test method based on the production of gas spring shock absorbers, using the compression test machine based on the production of gas spring shock absorbers as described in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: limiting the position of the gas spring shock absorber body (5) by means of a positioning mechanism so that the gas spring shock absorber body (5) will not deviate or tip over during the experiment; Step 2: Performing a specified weight test on the gas spring shock absorber body (5) through a fixed weight test mechanism, and adjusting the weight of the fixed weight test mechanism test through an adjustment component; Step three, adjusting the air pressure of the gas spring shock absorber body (5) through the air pressure adjustment member to test the state of the gas spring shock absorber body (5) under different air pressures.

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