Pressure-bearing testing device for steel bar truss floor support plate

Abstract

The utility model relates to a pressure-bearing test device for a steel bar truss floor support plate. The pressure-bearing test device comprises a test board, and a pressure applying mechanism and a limiting mechanism which are arranged on the test board, the two sides of the test bench are both provided with slide ways penetrating through the bench surface of the test bench. The limiting mechanism comprises two moving parts which are in sliding connection with the slideways respectively, a limiting part mounted at the tops of the moving parts, a first driving part which drives the limiting part to move downwards and enables the limiting part to press the steel bar truss floor support plate, and a driving assembly which drives the two moving parts to move synchronously along the slideways. In the process of fixing the steel bar truss floor support plate, the moving part synchronously moves towards the center position of the test board, so that the steel bar truss floor support plate can be fixed at the center of the test board, and the positioning can be more accurate. In the testing process, the two sides of the steel bar truss floor support plate cannot tilt up. And an operator only needs to operate the driving assembly and the first driving piece to position and fix the steel bar truss floor support plate, and the rapid limiting and fixing effects are achieved.

Description

Technical Field

[0001] The utility model relates to the field of steel bar trusses, and more particularly to a pressure-bearing testing device for steel bar truss floor decks. Background Art

[0002] The combined load-bearing plate that connects the steel truss and the base plate into a whole through resistance spot welding is called a steel truss floor decking plate; after the steel truss floor decking plate is processed, it needs to be subjected to a strength test. During the strength test, a stamping test is performed using a testing device to observe the deformation of the plate body. However, when the plate body is placed, it needs to be accurately positioned and placed. After placement, it is prone to sliding, which affects the subsequent stamping effect. During the stamping process, the two sides of the base plate are prone to warping, resulting in overall bending, which is not conducive to stamping observation at local locations. In addition, existing pressure tests are often fixed-point tests, generally applying pressure to the middle position of the steel truss floor decking plate, but there is a lack of relevant tests for the two sides or other positions. Utility Model Content

[0003] In order to overcome the problems in the prior art of steel truss floor decking that are difficult to fix and warp when being punched, the utility model provides a pressure testing device for steel truss floor decking, which can achieve rapid positioning of the steel truss floor decking and prevent warping.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a pressure testing device for steel truss floor decking, comprising a test bench, a pressure mechanism and a limiting mechanism installed on the test bench; slides passing through the table top of the test bench are provided on both sides of the test bench; the limiting mechanism includes two moving parts respectively connected to the slides for sliding, a limiting part installed on the top of the moving part, a first driving part that drives the limiting part to move downward and makes the limiting part press the steel truss floor decking, and a driving assembly that drives the two moving parts to move synchronously along the slides.

[0005] In the above technical solution, the steel truss floor deck is placed at the center of the test bench, and then the driving assembly is started. In order to realize the synchronous movement of the moving parts, the driving assembly can be controlled synchronously by two servo motors or two stepping motors, so that the moving parts on both sides move toward the center of the test and fit on the edge of the steel truss floor deck. The first driving part drives the limiting part to move downward and press the steel truss floor deck. After the steel truss floor deck is fixed, the pressure mechanism is started to press the steel truss floor deck to deform the steel truss floor deck. In the process of fixing the steel truss floor deck, the moving parts move synchronously toward the center of the test bench, so that the steel truss floor deck can be fixed in the center of the test bench, and the positioning can be more accurate. After the limiting part presses the steel truss floor deck, the two sides of the steel truss floor deck will not lift up during the test.

[0006] Preferably, the top of the movable member is provided with a mounting portion extending toward the center of the test bench, and the first driving member is a cylinder mounted on the top of the mounting portion; the piston rod of the cylinder passes through the mounting portion and connects to the stopper. When the side of the movable member is in contact with the steel truss floor deck, the mounting portion is located above the steel truss floor deck. At this time, the extension of the cylinder can cause the stopper to move downward and compress the steel truss floor deck.

[0007] Preferably, the first driving members are located at both ends of the mounting portion. There are at least two first driving members on each mounting portion, which can provide pressure at both ends to better compress the edges of the steel truss floor deck.

[0008] Preferably, the test bench is provided with a plurality of linearly distributed scale grooves and a block placed in any of the scale grooves, wherein the axis of the scale groove is perpendicular to the movable part. According to the different widths of the steel bar truss floor decking, the block is placed on the corresponding scale groove, and when the steel bar truss floor decking is placed on the test bench, positioning in width can be achieved, and positioning in width of steel bar truss floor decking of different specifications can be achieved, making the placement and positioning of the steel bar truss floor decking faster and more accurate, without the need for the operator to make adjustments to enable the pressure mechanism to press on the corresponding position of the steel bar truss floor decking.

[0009] Preferably, the bottom of each movable member is provided with a sliding portion, the sliding portion passes through the slideway and extends to one side of the bottom surface of the test bench, the drive assembly includes a screw connected to the two sliding portions and a second drive member that drives the screw to rotate, the screw is provided with a first threaded portion and a second threaded portion, the first threaded portion is threadedly connected to one of the sliding portions, the second threaded portion is connected to the other sliding portion, the first threaded portion and the second threaded portion have opposite rotation directions and make the movement directions of the two sliding portions opposite. The sliding portion fits the shape of the slideway so that the movable member can move on the table surface of the test bench. The second drive member is a motor that drives the screw to rotate, and the first threaded portion and the second threaded portion of the screw respectively drive the two sliding portions to move in opposite directions. If the two sliding portions move synchronously to the center of the test bench, one of the sliding seats moves to the right and the other moves to the left. Since the motor only needs to drive one screw to move, it can accurately make the movable members move synchronously. From a structural point of view, it saves one motor and the synchronization debugging between the motors.

[0010] Preferably, the second driving member is a motor, and the switch of the motor is configured as a first pedal located below the test bench. The switch of the first driving member is configured as a second pedal located below the test bench. The switch of the first driving member is configured as a second pedal located below the test bench. An operator can control the second driving member by stepping on the first pedal and the second pedal, respectively, thereby avoiding accidental activation caused by the installation on the test bench.

[0011] Preferably, the pressure mechanism is slidably connected to the test bench via a slide module in a first direction, wherein the first direction is parallel to the direction of movement of the movable member. The pressure mechanism moves in the first direction and can apply pressure to positions on both sides of the steel truss floor deck in the first direction as needed, thereby achieving the purpose of applying pressure to positions other than the center and facilitating control of the pressure application position.

[0012] Preferably, the pressure mechanism includes a base, a pressure cylinder mounted on the base and connected to the piston rod of the pressure cylinder, a punch slidably connected to the adapter plate in a second direction, and a locking member connecting the punch to the adapter plate; the second direction is perpendicular to the first direction. The punch can be adjusted on the adapter plate and secured by the locking member after adjustment. Pressure can be applied to other locations on the steel truss floor deck in the second direction as needed, thereby achieving the purpose of applying pressure to locations outside the center and facilitating control of the pressure application location.

[0013] Preferably, the adapter plate is provided with a T-slot, and the punch head is provided with a T-block that cooperates with the T-slot; the locking member comprises a pressure plate mounted on the side of the T-slot, and a fastener having one end abutting against the pressure plate and the other end passing through one side of the adapter plate. The T-block can slide within the T-slot and is restricted in the vertical direction. The fastener is threadedly connected to the adapter plate. By tightening the fastener, the pressure plate can be moved within the T-slot and press the T-block. Since the pressure plate has a large coverage area and can only press and fix the T-block at any position within the T-slot, at least two fasteners are provided and evenly distributed.

[0014] Compared with the prior art, the present invention has the following beneficial effects: during the process of fixing the steel truss floor deck, the movable member moves synchronously toward the center of the test bench, thereby enabling the steel truss floor deck to be fixed in the center of the test bench and positioned more accurately. After the limiting member presses the steel truss floor deck, the sides of the steel truss floor deck will not tilt during the test. The operator only needs to operate the drive assembly and the first drive member to achieve positioning and fixation of the steel truss floor deck, achieving rapid limiting and fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a structural schematic diagram of a pressure-bearing test device for a steel truss floor deck in the present invention;

[0016] Figure 2 yes Figure 1 A partial enlarged view of position A;

[0017] Figure 3 This is a schematic structural diagram from a bottom perspective of a pressure-bearing test device for a steel truss floor deck according to the present invention;

[0018] Figure 4 yes Figure 1 A partial enlarged view of position B. DETAILED DESCRIPTION

[0019] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0020] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0022] Example 1

[0023] like Figure 1-2 The figure shows an embodiment 1 of a pressure testing device for steel truss floor decking, comprising a test platform 1, a pressure mechanism 2 and a limiting mechanism installed on the test platform 1; slideways 101 passing through the table surface of the test platform 1 are provided on both sides of the test platform 1; the limiting mechanism comprises two moving parts 3 respectively connected to the slideways 101 for sliding, a limiting part 4 installed on the top of the moving part 3, a first driving part 5 that drives the limiting part 4 to move downward and makes the limiting part 4 press the steel truss floor decking, and a driving assembly 6 that drives the two moving parts 3 to move synchronously along the slideway 101.

[0024] The test bench 1 is provided with a plurality of linearly distributed graduated grooves 102 and a stopper 7 placed in any graduated groove 102, wherein the axis of the graduated groove 102 is perpendicular to the movable member 3. According to the width of the steel truss floor deck, the stopper 7 is placed on the corresponding graduated groove 102. When the steel truss floor deck is placed on the test bench 1, the width positioning can be achieved. Moreover, the width positioning of steel truss floor decks of different specifications can be achieved, making the placement and positioning of the steel truss floor deck faster and more accurate, without the need for the operator to make adjustments to ensure that the pressure mechanism 2 can press on the corresponding position of the steel truss floor deck.

[0025] Specifically, the top of the moving member 3 is provided with a mounting portion 301 extending toward the center of the test bench 1. The first driving member 5 is a pneumatic cylinder mounted on top of the mounting portion 301; the piston rod of the pneumatic cylinder passes through the mounting portion 301 and connects to the stopper 4. When the side of the moving member 3 is in contact with the steel truss deck, the mounting portion 301 is located above the steel truss deck. At this time, the extension of the pneumatic cylinder causes the stopper 4 to move downward and compress the steel truss deck.

[0026] In this embodiment, the first driving members 5 are located at both ends of the mounting portion 301. There are at least two first driving members 5 on each mounting portion 301, which can provide pressure at both ends to better compress the edges of the steel truss floor deck.

[0027] The working principle or workflow of the present invention is as follows: according to the width corresponding to the specification of the steel truss floor deck, the stopper 7 is placed in the corresponding scale groove 102. The steel truss floor deck is placed in the center position on the test bench 1 and one side of the width of the steel truss floor deck is fitted on the stopper 7, and then the drive assembly 6 is started. In order to realize the synchronous movement of the moving part 3, the drive assembly 6 can be two servo motors or two stepper motors that are synchronously controlled, so that the moving parts 3 on both sides are moved toward the center direction of the test and fit on the edge of the steel truss floor deck. The first drive member 5 drives the limit member 4 to move downward and press the steel truss floor deck. After the steel truss floor deck is fixed, the pressure mechanism 2 is started to apply pressure to the steel truss floor deck to deform the steel truss floor deck. In the process of fixing the steel truss floor deck, the moving part 3 moves synchronously toward the center position on the test bench 1, so that the steel truss floor deck can be fixed in the center of the test bench 1 and the positioning can be more accurate. After the limiting member 4 presses the steel bar truss floor deck, the two sides of the steel bar truss floor deck will not warp during the test.

[0028] The beneficial effects of this embodiment are as follows: during the process of fixing the steel truss floor deck, rapid positioning in the width direction is first achieved through the block 7, while the moving member 3 moves synchronously toward the center position on the test bench 1. Therefore, the steel truss floor deck can be fixed in the center of the test bench 1, and the positioning can be relatively accurate. After the limiting member 4 presses the steel truss floor deck, the two sides of the steel truss floor deck will not tilt during the test process. The operator only needs to operate the drive assembly 6 and the first drive member 5 to achieve the positioning and fixation of the steel truss floor deck, achieving the effect of rapid limiting and fixing.

[0029] Example 2

[0030] Embodiment 2 of a pressure-bearing test device for a steel truss floor deck differs from embodiment 1 in that the driving assembly 6 and the moving part 3 are further defined.

[0031] The bottom of each moving part 3 is provided with a sliding part 302, which passes through the slideway 101 and extends to one side of the bottom surface of the test bench 1. The driving assembly 6 includes a screw rod 601 connected to the two sliding parts 302 and a second driving member 602 that drives the screw rod 601 to rotate. The screw rod 601 is provided with a first threaded portion 6011 and a second threaded portion 6012. The first threaded portion 6011 is threadedly connected to one of the sliding parts 302, and the second threaded portion 6012 is connected to the other sliding part 302. The rotation directions of the first threaded portion 6011 and the second threaded portion 6012 are opposite and make the movement directions of the two sliding parts 302 opposite. The sliding part 302 fits the shape of the slideway 101, allowing the moving part 3 to move on the table of the test bench 1. The second driving member 602 is a motor, which drives the screw rod 601 to rotate, and the first threaded portion 6011 and the second threaded portion 6012 of the screw rod 601 respectively drive the two sliding parts 302 to move in opposite directions. For example, if the two sliding parts 302 move synchronously toward the center of the test bench 1, one of the sliding seats moves to the right and the other moves to the left. Since the motor only needs to drive one screw rod 601 to move, it can accurately make the moving member 3 move synchronously. From a structural point of view, it saves the synchronization debugging between one motor and the other.

[0032] Preferably, the second driving member 602 is a motor, and the motor switch is set as a first pedal and is located under the test bench 1. The switch of the first driving member 5 is set as a second pedal and is located under the test bench 1. The switch of the first driving member 5 is set as a second pedal and is located under the test bench 1. The operator can control the second driving member 602 and the second driving member 602 by stepping on the first pedal and the second pedal respectively, thereby avoiding accidental touches caused by the setting on the test bench 1.

[0033] The remaining technical features and working principles of this embodiment are consistent with those of embodiment 1.

[0034] Example 3

[0035] Embodiment 3 of a pressure-bearing testing device for a steel truss floor deck differs from the above-mentioned embodiment 2 in that the pressure-applying mechanism 2 is further limited.

[0036] The pressure mechanism 2 is slidably connected to the test bench 1 via a slide module 8 in a first direction, which is parallel to the direction of movement of the movable member 3. As the pressure mechanism 2 moves in the first direction, it can apply pressure to locations on both sides of the steel truss deck in the first direction as needed, thereby achieving the purpose of applying pressure to locations outside the center and facilitating control of the pressure application location. The slide module 8 can be either electric or manual.

[0037] Specifically, the pressure mechanism 2 includes a base 201, an adapter plate 203 mounted on the base 201 and connected to the piston rod of the pressure cylinder 202, a punch 204 slidably connected to the adapter plate 203 in a second direction, which is perpendicular to the first direction, and a locking member 205 connecting the punch 204 to the adapter plate 203. The position of the punch 204 on the adapter plate 203 can be adjusted and secured by the locking member 205. Pressure can be applied to other locations on the steel truss floor deck in the second direction as needed, thereby achieving the purpose of applying pressure to locations other than the center and facilitating control of the pressure application location.

[0038] Furthermore, the adapter plate 203 is provided with a T-slot, and the punch head 204 is provided with a T-block that cooperates with the T-slot. The locking member 205 includes a pressure plate 2051 mounted on the side of the T-slot, and a fastener 2052, one end of which abuts the pressure plate 2051 and the other end of which passes through the side of the adapter plate 203. The T-block can slide within the T-slot and is restricted in the vertical direction. The fastener 2052 is threadedly connected to the adapter plate 203. By tightening the fastener 2052, the pressure plate 2051 can be moved within the T-slot and press the T-block. Because the pressure plate 2051 has a large coverage area and can only press and fix the T-block at any position within the T-slot, at least two fasteners 2052 are provided and evenly distributed.

[0039] Other technical features and working principles of this embodiment are consistent with those of Example 2.

[0040] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A pressure test device for steel truss floor decks, comprising a test bench (1) and a pressure mechanism (2) mounted on the test bench (1), characterized in that: The invention also includes a limiting mechanism; both sides of the test bench (1) are provided with a slideway (101) passing through the table surface of the test bench (1); the limiting mechanism includes two moving parts (3) respectively connected to the slideway (101) in a sliding manner, a limiting part (4) installed on the top of the moving part (3), a first driving part (5) driving the limiting part (4) to move downward and causing the limiting part (4) to press the steel bar truss floor deck, and a driving component (6) driving the two moving parts (3) to move synchronously along the slideway (101).

2. A pressure testing device for steel truss floor decks according to claim 1, characterized in that: The top of the moving member (3) is provided with a mounting portion (301) extending toward the center of the test bench (1); the first driving member (5) is a cylinder and is mounted on the top of the mounting portion (301); the piston rod of the cylinder passes through the mounting portion (301) and is connected to the limiting member (4).

3. A pressure testing device for steel truss floor decks according to claim 2, characterized in that: The first driving member (5) is located at both ends of the mounting portion (301).

4. A pressure testing device for steel truss floor decks according to claim 2, characterized in that: The test bench (1) is provided with a plurality of linearly distributed scale grooves (102) and a stopper (7) placed in any of the scale grooves (102), wherein the axis of the scale groove (102) is perpendicular to the moving part (3).

5. The pressure testing device for steel truss floor deck according to claim 2, characterized in that: The bottom of each movable member (3) is provided with a sliding portion (302), and the sliding portion (302) passes through the slideway (101) and extends to one side of the bottom surface of the test bench (1). The driving assembly (6) includes a screw rod (601) connected to the two sliding portions (302) and a second driving member (602) for driving the screw rod (601) to rotate. The screw rod (601) is provided with a first threaded portion (6011) and a second threaded portion (6012). The first threaded portion (6011) is threadedly connected to one of the sliding portions (302), and the second threaded portion (6012) is connected to the other sliding portion (302). The first threaded portion (6011) and the second threaded portion (6012) have opposite rotation directions, so that the two sliding portions (302) move in opposite directions.

6. A pressure testing device for steel truss floor decks according to claim 5, characterized in that: The second driving member (602) is a motor, and the switch of the motor is configured as a first pedal and is located under the test bench (1).

7. A pressure testing device for steel truss floor decks according to claim 6, characterized in that: The switch of the first driving member (5) is configured as a second pedal and is located under the test bench (1).

8. A pressure testing device for steel truss floor decks according to any one of claims 1 to 6, characterized in that: The pressure mechanism (2) is slidably connected to the test bench (1) in a first direction via a slide module (8), and the first direction is parallel to the moving direction of the moving member (3).

9. The pressure-bearing test device for steel truss floor decks according to claim 8, characterized in that: The pressure mechanism (2) comprises a machine base (201), a pressure cylinder (202) mounted on the machine base (201) and an adapter plate (203) connected to the piston rod of the pressure cylinder (202), a punch head (204) slidably connected to the adapter plate (203) in a second direction, and a locking member (205) connecting the punch head (204) to the adapter plate (203); the second direction is perpendicular to the first direction.

10. A pressure testing device for steel truss floor decks according to claim 9, characterized in that: The adapter plate (203) is provided with a T-shaped slot, and the punch head (204) is provided with a T-shaped block that cooperates with the T-shaped slot; the locking member (205) includes a pressing plate (2051) installed on the side of the T-shaped slot, and a fastener (2052) with one end abutting against the pressing plate (2051) and the other end passing through one side of the adapter plate (203).

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