A positioning device special for a concrete press

Abstract

The utility model discloses a positioning device special for concrete press belongs to concrete detection technical field, including base, is equipped with the top frame through the prop installation on the base, and the base is fixed with the support seat, is installed with the placement board on the support seat, is provided with the positioning structure on the placement board. Adopt the clamping seat with V type groove, can carry out effective positioning to cubic test block, set up cylinder clamping subassembly on clamping seat and end plate, can carry out accurate positioning to cylinder test block, realize accurate positioning of different test block, and the positioning clamp plate is movably arranged in the movable cavity, and can be telescopic, and it is convenient to adjust according to the style of test block, set up auxiliary support subassembly below one end of clamping seat, play the role of dynamic support to clamping seat, can ensure the stable movement of clamping seat, utilize the installation of T type block of abutting screw, can quickly carry out the dismounting of whole auxiliary support subassembly.

Description

Technical Field

[0001] This utility model relates to the field of concrete testing technology, and in particular to a positioning device for a concrete pressure machine. Background Technology

[0002] A concrete press is a testing device specifically designed for testing the mechanical properties of concrete materials. It primarily assesses key indicators such as compressive strength and modulus of elasticity by applying pressure. When using a concrete press, the operator places a concrete test block on a support plate. After activating the hydraulic mechanism, the hydraulic plate descends and compresses the test block, thereby testing its mechanical properties.

[0003] Existing concrete pressure machines lack a dedicated positioning device for centering concrete test blocks. Operators must place the blocks on the lower pressure plate and then rely on experience to move them to the center of the upper pressure plate to ensure accurate compressive strength testing. This method is prone to block misalignment, affecting the final test results. While some concrete pressure machines have positioning clamps, these clamps only provide positioning in one direction for cubic blocks, resulting in inaccurate positioning. Furthermore, they are ineffective at positioning cylindrical blocks, still leading to inaccurate positioning and affecting test accuracy. Utility Model Content

[0004] The main purpose of this utility model is to provide a special positioning device for concrete pressure machines, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A positioning device for a concrete press includes a base, on which a top frame is mounted via a column, and a support seat is fixed on the base. A placement plate is mounted on the support seat, and a positioning structure is provided on the placement plate. Two sets of the positioning structures are symmetrically installed on the placement plate.

[0006] Preferably, a hydraulic cylinder is fixed on the top frame, and a pressure plate is connected to the telescopic shaft of the hydraulic cylinder, with the pressure plate located directly above the placement plate.

[0007] Preferably, the positioning structure includes a mounting base, a clamping base, an end plate, a guide rod, and a multi-stage telescopic cylinder. The mounting base is fixed on the placement plate, the clamping base and the end plate are connected together, and the lower end of the clamping base is provided with a T-slot. The guide rod is fixed on the end plate and passes through the mounting base. The multi-stage telescopic cylinder is mounted on the mounting base, and the cylinder shaft of the multi-stage telescopic cylinder is connected to the end plate.

[0008] Preferably, the positioning structure further includes a movable cavity, a V-groove, a cylindrical clamping assembly, and an auxiliary support assembly. The movable cavity is formed on the clamping seat, the V-groove is disposed at the end of the clamping seat, the cylindrical clamping assembly is installed in the movable cavity and is connected to the end plate, and the auxiliary support assembly is disposed in the T-groove at the lower end of the clamping seat.

[0009] Preferably, the cylindrical clamping assembly includes a positioning clamping plate, a moving cylinder, and a connecting rod. The positioning clamping plate is disposed in the movable cavity, the moving cylinder is fixed on the end plate, and the connecting rod is connected to the positioning clamping plate and the moving cylinder.

[0010] Preferably, the auxiliary support assembly includes a T-block, a clamping screw, a control block, a ball joint, and a stud. The T-block is disposed in a T-slot, the clamping screw is threaded onto the T-block, the control block is connected to the ball joint, and the stud is disposed on the control block and connected to the T-block.

[0011] Compared with the prior art, this utility model has the following beneficial effects: This special positioning device for concrete pressure machines, through its positioning structure and the use of a clamping seat with a V-groove, can effectively position cubic test blocks. A cylindrical clamping assembly is set on the clamping seat and end plate, enabling precise positioning of cylindrical test blocks. This allows for precise positioning of different test blocks, ensuring the accuracy of subsequent tests. The positioning clamping plate is movably set in the movable cavity, allowing for extension and retraction, facilitating adjustment according to the test block's shape and ensuring positioning effectiveness. An auxiliary support assembly is set below one end of the clamping seat, containing a universal ball joint. Used in conjunction with a multi-stage telescopic cylinder and guide rod, it provides dynamic support to the clamping seat, ensuring stable movement. T-blocks are installed using tightening screws, allowing for quick assembly and disassembly of the entire auxiliary support assembly. The control block is connected to the T-block via studs, allowing for position adjustment and ensuring optimal performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the positioning structure of this utility model; Figure 3 This is a schematic diagram of the cylindrical clamping assembly of this utility model; Figure 4 This is a schematic diagram of the cylindrical clamping assembly of this utility model after it has been stored. Figure 5 This is a schematic diagram of the auxiliary support component of this utility model.

[0013] In the diagram: 1. Base; 2. Top frame; 3. Support seat; 4. Placement plate; 5. Positioning structure; 501. Mounting seat; 502. Clamping seat; 503. End plate; 504. Guide rod; 505. Multi-stage telescopic cylinder; 506. Movable cavity; 507. V-groove; 508. Cylindrical clamping assembly; 5081. Positioning clamping plate; 5082. Moving cylinder; 5083. Connecting rod; 509. Auxiliary support assembly; 5091. T-block; 5092. Clamping screw; 5093. Control block; 5094. Universal ball; 5095. Stud; 6. Hydraulic cylinder; 7. Pressure plate. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] like Figures 1-5 As shown, a positioning device for a concrete press includes a base 1, a top frame 2 mounted on the base 1 via a support column, a support seat 3 fixed on the base 1, a placement plate 4 mounted on the support seat 3, and positioning structures 5 provided on the placement plate 4. Two sets of positioning structures 5 are symmetrically installed on the placement plate 4. A hydraulic cylinder 6 is fixed on the top frame 2, and a pressure plate 7 is connected to the telescopic shaft of the hydraulic cylinder 6, with the pressure plate 7 located directly above the placement plate 4.

[0016] When testing the mechanical properties of concrete, a concrete pressure tester is used. The entire machine is stably placed on the base 1. The concrete test block is placed on the placement plate 4 on the upper end of the support 3. After the positioning structure 5 is activated, the test block is positioned in the middle of the placement plate 4. Then the positioning structure 5 releases the test block to make room. The hydraulic cylinder 6 on the top frame 2 is activated. The hydraulic shaft moves and lowers the pressure plate 7. The pressure plate 7 is used to compress the test block to perform the performance test. The test results are fed back to the computer for display. The relevant performance of the concrete with the current mix ratio can be understood from the display results.

[0017] According to the above implementation scheme, the positioning structure 5 includes a mounting base 501, a clamping base 502, an end plate 503, a guide rod 504, and a multi-stage telescopic cylinder 505. The mounting base 501 is fixed on the placement plate 4. The clamping base 502 and the end plate 503 are connected together, and the lower end of the clamping base 502 is provided with a T-slot. The guide rod 504 is fixed on the end plate 503 and passes through the mounting base 501. The multi-stage telescopic cylinder 505 is mounted on the mounting base 501, and the cylinder shaft of the multi-stage telescopic cylinder 505 is connected to the end plate 503. The positioning structure 5 also includes a movable cavity 506, a V-groove 507, a cylindrical clamping assembly 508, and an auxiliary support assembly 509. The movable cavity 506 is formed on the clamping seat 502, the V-groove 507 is provided at the end of the clamping seat 502, the cylindrical clamping assembly 508 is installed in the movable cavity 506 and is connected to the end plate 503, and the auxiliary support assembly 509 is provided in the T-groove at the lower end of the clamping seat 502.

[0018] When positioning concrete test blocks, for cubic concrete test blocks, the clamping part of the cylindrical clamping assembly 508 is housed in the movable cavity 506 on the clamping seat 502. Then, the cubic test block is placed on the placement plate 4, ensuring that the edges of the cube face the direction of the clamping seat 502. The multi-stage telescopic cylinder 505 on the mounting base 501 is activated. The clamping seat 502 moves through the guide rod 504 under the drive of the multi-stage telescopic cylinder 505 until the two clamping seats 502 are clamped on the cubic test block through the V-groove 507, thus achieving the positioning of the cubic test block. After positioning, the clamping seat 502 moves out of position under the action of the multi-stage telescopic cylinder 505, and then the testing can be carried out.

[0019] When positioning the cylindrical test block, place the cylindrical test block on the placement plate 4. First, start the drive component in the cylindrical clamping assembly 508 on the end plate 503, so that the clamping part in the cylindrical clamping assembly 508 moves out of the movable cavity 506. Then, start the multi-stage telescopic cylinder 505 according to the above process. The clamping seat 502 moves the cylindrical clamping assembly 508, and the cylindrical clamping assembly 508 is used to complete the positioning of the cylindrical test block.

[0020] During the clamping and positioning process, the auxiliary support component 509 at the lower end of the clamping seat 502 plays a dynamic support role, which can ensure the stable movement of the clamping seat 502 and avoid positioning deviation. It has a simple structure and good performance.

[0021] The cylindrical clamping assembly 508 includes a positioning clamping plate 5081, a moving cylinder 5082, and a connecting rod 5083. The positioning clamping plate 5081 is disposed in the movable cavity 506, the moving cylinder 5082 is fixed on the end plate 503, and the connecting rod 5083 is connected to the positioning clamping plate 5081 and is connected to the moving cylinder 5082.

[0022] When using the cylindrical clamping assembly 508, after starting the moving cylinder 5082 on the end plate 503, the moving cylinder 5082 moves the positioning clamp 5081 through the connecting rod 5083, so that the end of the positioning clamp 5081 moves out of the movable cavity 506. Then, after starting the multi-stage telescopic cylinder 505, the clamping seat 502 moves the cylindrical clamping assembly 508. The positioning clamp 5081 is used to position the cylindrical test block. After positioning, the cylindrical clamping assembly 508 moves with the clamping seat 502 to make room, and the concrete press is started to perform mechanical property testing of the concrete test block.

[0023] The auxiliary support assembly 509 includes a T-block 5091, a clamping screw 5092, a control block 5093, a universal ball joint 5094, and a stud 5095. The T-block 5091 is disposed in a T-slot, the clamping screw 5092 is threadedly connected to the T-block 5091, the control block 5093 is connected to the universal ball joint 5094, and the stud 5095 is disposed on the control block 5093 and is connected to the T-block 5091.

[0024] When installing the auxiliary support assembly 509, the control block 5093 with the universal ball 5094 is connected to the T-block 5091 via the stud 5095. Rotating the control block 5093 causes the stud 5095 to rotate, reducing the distance between the T-block 5091 and the control block 5093. Then, the T-block 5091 is placed into the T-slot and secured with the locking screw 5092. After securing, the control block 5093 is rotated in the opposite direction, causing the stud 5095 to rotate and move the control block 5093 and the universal ball 5094 until the universal ball 5094 contacts the placement plate 4. During use, the clamping seat 502 moves the auxiliary support assembly 509, and the universal ball 5094 in the auxiliary support assembly 509 moves along the placement plate 4, thus providing dynamic support for the clamping seat 502 and ensuring stability during use.

[0025] The foregoing describes the working principle, features, and beneficial effects of this utility model. Those skilled in the art will understand from the foregoing that it does not limit the utility model. The embodiments and description above illustrate the basic principles and features of this utility model. Various changes and improvements can be made to this utility model while remaining consistent with its concept, and all such improvements should fall within the scope of protection claimed by this utility model.

Claims

1. A special positioning device for a concrete press, comprising a base (1), wherein a top frame (2) is mounted on the base (1) via a support column, and a support seat (3) is fixed on the base (1), wherein a placement plate (4) is mounted on the support seat (3), characterized in that: The placement plate (4) is provided with a positioning structure (5), and two sets of the positioning structures (5) are symmetrically installed on the placement plate (4).

2. The positioning device for a concrete press according to claim 1, characterized in that: A hydraulic cylinder (6) is fixed on the top frame (2), and a pressure plate (7) is connected to the telescopic shaft of the hydraulic cylinder (6). The pressure plate (7) is located directly above the placement plate (4).

3. The positioning device for a concrete press according to claim 2, characterized in that: The positioning structure (5) includes a mounting base (501), a clamping base (502), an end plate (503), a guide rod (504), and a multi-stage telescopic cylinder (505). The mounting base (501) is fixed on the placement plate (4). The clamping base (502) and the end plate (503) are connected together, and the lower end of the clamping base (502) is provided with a T-slot. The guide rod (504) is fixed on the end plate (503) and passes through the mounting base (501). The multi-stage telescopic cylinder (505) is mounted on the mounting base (501), and the cylinder shaft of the multi-stage telescopic cylinder (505) is connected to the end plate (503).

4. The positioning device for a concrete press according to claim 3, characterized in that: The positioning structure (5) further includes a movable cavity (506), a V-groove (507), a cylindrical clamping assembly (508), and an auxiliary support assembly (509). The movable cavity (506) is opened on the clamping seat (502). The V-groove (507) is provided at the end of the clamping seat (502). The cylindrical clamping assembly (508) is installed in the movable cavity (506) and is connected to the end plate (503). The auxiliary support assembly (509) is provided in the T-groove at the lower end of the clamping seat (502).

5. A special positioning device for a concrete press according to claim 4, characterized in that: The cylindrical clamping assembly (508) includes a positioning clamping plate (5081), a moving cylinder (5082), and a connecting rod (5083). The positioning clamping plate (5081) is disposed in the movable cavity (506). The moving cylinder (5082) is fixed on the end plate (503). The connecting rod (5083) is connected to the positioning clamping plate (5081) and is connected to the moving cylinder (5082).

6. A positioning device for a concrete press according to claim 5, characterized in that: The auxiliary support assembly (509) includes a T-block (5091), a clamping screw (5092), a control block (5093), a universal ball (5094), and a stud (5095). The T-block (5091) is disposed in a T-slot, the clamping screw (5092) is threaded onto the T-block (5091), the control block (5093) is connected to the universal ball (5094), and the stud (5095) is disposed on the control block (5093) and connected to the T-block (5091).

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