CN211318007U - A pressure testing machine with adjustable clamping device - Google Patents

Abstract

The utility model relates to a pressure testing machine with an adjustable clamping device, which belongs to the technical field of pressure testing machines; The lateral beam, the pressure platform arranged on the base and located between the two side plates, the movable pressure platform set directly above the pressure platform, and the drive of the movable pressure platform to drive the movable pressure platform to approach or away from the pressure platform Structure; a clamping device for clamping the concrete test block is arranged between the two side plates, and the clamping device includes two support rods symmetrically arranged above the bearing platform, a clamping structure slidably arranged on the support rod, and a driving clamp A drive assembly in which the holding structure slides along the length of the support rod. The utility model solves the problem of poor stability of the concrete test block during the detection process by arranging a clamping structure for clamping the concrete test block, thereby improving the detection accuracy of the pressure testing machine.

Description

A pressure testing machine with adjustable clamping device

technical field

The utility model relates to the technical field of pressure testing machines, in particular to a pressure testing machine with an adjustable clamping device.

Background technique

The pressure testing machine is a pressure equipment used to test the compressive strength of concrete and other building materials. 1, the pressure testing machine includes a base 1, two side plates 11 disposed on opposite sides of the base 1, a beam 12 disposed on the side of the two side plates 11 away from the base 1, and disposed on the base 1 and located on the two side plates The pressure table 2 between the 11 and the movable pressure table 3 arranged directly above the pressure table 2 is fixedly connected with the movable pressure table 3 to drive the movable pressure table 3 to approach or away from the pressure table 2. Driving structure.

When testing the concrete test block 8, the concrete test block 8 is placed on the bearing platform 2, and the lower pressing platform is driven to move upward by the driving mechanism, and then the concrete located between the movable pressing platform 3 and the bearing platform 2 is tested. The test block 8 is extruded.

The prior art scheme in the above has the following defects: when the height of the concrete test block 8 is relatively high, in the process of pressing down the movable pressing table 3, the concrete test block 8 is easily toppled to one side, and it cannot be ensured that the concrete test block 8 is detected The stability of the process leads to a large error in the detection results.

Utility model content

Aiming at the deficiencies of the prior art, one of the purposes of the present invention is to provide a pressure testing machine with an adjustable clamping device. The problem of poor stability in the process, thereby improving the detection accuracy of the pressure testing machine.

The above-mentioned utility model purpose of the present utility model is achieved through the following technical solutions:

A pressure testing machine with an adjustable clamping device, comprising a base, two side plates disposed on opposite sides of the base, a beam disposed on one side of the two side plates away from the base, and a beam disposed on the base. And the pressure platform located between the two side plates, the movable pressure platform arranged directly above the pressure platform, is fixedly connected with the movable pressure platform to drive the movable pressure platform to approach or away from the pressure bearing platform The driving structure of the platform; a clamping device for clamping the concrete test block is arranged between the two side plates, and the clamping device includes two support rods symmetrically arranged above the pressure platform, slidingly arranged on the A clamping structure on the support rod and a driving assembly for driving the clamping structure to slide along the length direction of the support rod.

By adopting the above technical solution, a clamping device is arranged above the pressure-bearing table, and the clamping device includes two symmetrically arranged support rods. The two support rods are respectively slidably connected with a clamping structure, and the clamping structure is connected with a drivable clamping structure. The drive assembly whose structure moves along the length direction of the support rod, adjust the distance between the two clamping structures through the drive assembly, so that the clamping structure is pressed against the opposite side plate of the concrete test block, thereby improving the detection of the concrete test block. The stability of the process, thereby improving the detection accuracy of the pressure testing machine.

In a preferred example of the present invention, the clamping structure can be further configured as follows: the clamping structure includes a sliding block slidably disposed on the supporting rod along the length direction of the supporting rod, a connecting rod disposed on the sliding block, and A clamping assembly arranged on the connecting rod; the clamping assembly includes a connecting block disposed on the connecting rod, a clamping rod connected with the connecting block and perpendicular to the connecting rod, and a clamping rod disposed on the connecting rod. The clamping rod is remote from the clamping block at one end of the connecting block.

By adopting the above technical solution, the clamping structure includes a sliding block, the sliding block is slidably connected along the length direction of the support rod, and the clamping assembly is arranged on the sliding block, and the clamping block is adjusted to move toward the side close to the concrete test block through the driving assembly , until the clamping block is pressed against the side surface of the concrete test block, so as to realize the clamping and fixation of the concrete test block, which is beneficial to improve the stability of the concrete test block.

In a preferred example of the present invention, it can be further configured that: the connecting block has two clamping rods extending outward along the radial direction thereof, wherein one end of the clamping rod away from the connecting block is provided with a square cross-section. A clamping block, another end of the clamping rod away from the connecting block is provided with a clamping block with an arc-shaped cross-section; wherein, the connecting block and the connecting rod are arranged around the circumferential direction of the connecting rod. Rotationally connected, the connecting block is provided with a locking assembly that confines the connecting block to the connecting rod.

By adopting the above technical solution, the connecting block is connected with two clamping rods, and each clamping rod is connected with a clamping block, and the cross section of one clamping is square, which can fix the concrete test block whose side is flat. The cross-section of the clamping block connected by the other clamping rod is arc-shaped, which can fix the concrete test block whose side is a circumferential surface; and the connecting block is connected with the connecting rod in rotation, and the connecting block is provided with a limit for the connecting block. The locking assembly located on the connecting rod rotates the connecting block, and after adjusting the position of the clamping block, the bolt can be inserted into the correspondingly arranged bolt hole and positioning hole, so as to realize the positioning of the clamping block.

In a preferred example of the present invention, it can be further configured as follows: the locking assembly includes two positioning holes provided on the connecting rod, a pin hole provided in the connecting block, and a pin hole provided in the pin hole and the pin hole at the same time. The pin of the positioning hole; wherein the central axis of one of the positioning holes is parallel to the connecting rod, and the angle formed by the central axes of the two positioning holes is equal to the angle formed by the two clamping rods .

By adopting the above technical solution, the connecting block is rotated so that the position of the pin hole corresponds to the position of the central axis parallel to the positioning hole of the support rod, and then the pin is inserted into the corresponding pin hole and the positioning hole, so that the positioning of the clamping block can be realized. .

In a preferred example of the present invention, it can be further configured as follows: the drive assembly includes a motor disposed on the side plate, a drive screw fixedly connected with the output shaft of the motor, and threadedly engaged with the drive screw a sliding seat, a guide seat arranged on the side of the sliding seat facing the side plate, and a guide groove opened on the side plate to guide the guide seat; wherein, the length direction of the guide groove Consistent with the length direction of the drive screw, and a linkage rod is connected between the sliding seat and the sliding block, one end of the linkage rod is hinged to the sliding seat, and the other end is hinged to the sliding block. described slider.

By adopting the above technical solution, the motor is started, and the rotation of the drive screw drives the sliding seat to move along the length direction of the guide groove, so as to drive the sliding block to move along the length direction of the support rod through the linkage rod, so that the clamping block is close to or away from the concrete tester. piece.

In a preferred example of the present invention, the guide seat is a dovetail seat, the guide groove is a dovetail groove, and the dovetail seat is slidably arranged in the dovetail groove.

By adopting the above technical solution, the guide seat is preferably a dovetail seat, and the guide groove is a dovetail groove matched with the dovetail seat, which is conducive to better guiding the sliding seat, so that the sliding seat can be guided along the length direction of the drive screw. sports.

In a preferred example of the present invention, it can be further configured as follows: two opposite sides of the two side plates are respectively provided with baffle plates, one of the baffle plates is fixed between the two side plates, and the other baffle plate is fixed between the two side plates. One side of the panel is hinged to one of the side panels.

By adopting the above technical solution, when the concrete test block needs to be placed on the bearing table, the hinged baffle can be opened, and the concrete test block can be placed on the bearing table; The plate is closed, and then the electric screw is started to drive the movable pressing table to move down, which can solve the problem of splashing after the concrete test block is broken, which is easy to cause harm to the human body.

To sum up, the present utility model includes at least one of the following beneficial technical effects:

1. A clamping device is arranged above the pressure bearing table. The clamping device includes two symmetrically arranged support rods. The two support rods are respectively slidably connected with a clamping structure, and the clamping structure is connected with a drivable clamping structure along the supporting rod. The driving component that moves in the longitudinal direction of the concrete block can adjust the distance between the two clamping structures through the driving component, so that the clamping structure is pressed against the opposite side plate of the concrete test block, thereby improving the stability of the concrete test block during the detection process. to improve the detection accuracy of the pressure testing machine;

2. The connecting block is connected with two clamping rods, and each clamping rod is connected with a clamping block. One of the clamping rods has a square cross-section, which can fix the concrete test block with a flat side; the other clamp The cross-section of the clamping block connected by the holding rod is arc-shaped, which can fix the concrete test block whose side is a circumferential surface; and the connecting block is connected with the connecting rod in rotation, and the connecting block is provided with a connecting block to limit the connecting block to the connecting rod. After adjusting the position of the clamping block, the plug can be inserted into the correspondingly provided plug hole and positioning hole, so as to realize the positioning of the clamping block.

Description of drawings

Fig. 1 is the structural representation of the pressure testing machine in the prior art;

Fig. 2 is the structural representation of the pressure testing machine in the present embodiment;

Fig. 3 is the partial enlarged schematic diagram of A part in Fig. 2;

Figure 4 is a partial exploded view of the clamping assembly in this embodiment;

FIG. 5 is a partial enlarged schematic view of part B in FIG. 2 .

In the figure, 1, base; 11, side plate; 12, beam; 13, baffle; 2, bearing table; 3, movable pressing table; 4, electric screw; 5, support rod; 61, sliding block; 62 , connecting rod; 621, positioning hole; 63, connecting block; 631, pin hole; 64, clamping rod; 65, clamping block; 66, pin; 67, link rod; 71, motor; 72, drive screw ; 73, sliding seat; 74, guide seat; 75, guide groove; 8, concrete test block.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings.

The present embodiment: referring to FIG. 2 , it is a pressure testing machine with an adjustable clamping device disclosed by the utility model, comprising a base 1, and two side plates 11 are symmetrically arranged on opposite sides of the base 1, and both side plates 11 are It is perpendicular to the base 1 , and the side of the two side plates 11 away from the base 1 is connected with a beam 12 , and the beam 12 is parallel to the base 1 . In addition, the base 1 is provided with a pressure-bearing table 2, the pressure-bearing table 2 is located between the two side plates 11, and a movable pressure-bearing table 3 is arranged directly above the pressure-bearing table 2, and the movable pressure-bearing table 3 is away from a side of the pressure-bearing table 2. The side is provided with an electric screw 4 , and one end of the electric screw 4 away from the movable pressing table 3 extends through the beam 12 to the top of the beam 12 . When testing, place the concrete test block 8 on the bearing platform 2, and then start the electric screw 4, so that the electric screw 4 drives the movable pressing platform 3 to move to the side close to the bearing platform 2, and the concrete test block can be tested. 8 Perform a compressive strength test.

When the height of the concrete test block 8 is relatively high, the concrete test block 8 located on the pressure bearing table 2 tends to fall to one side during the downward pressing of the movable pressing table 3 . In order to keep the concrete test block 8 stable during the detection process, in this embodiment, a clamping device is symmetrically arranged between the two side plates 11 , and the clamping device is located above the bearing platform 2 .

The clamping device includes two symmetrically arranged support rods 5 arranged above the pressure bearing table 2 , a clamping structure slidably arranged on the support rod 5 along the length direction of the support rod 5 , and a driving clamping structure along the length direction of the support rod 5 . Sliding drive assembly.

2 and 3 , the clamping structure includes a sliding block 61 , a connecting rod 62 , a connecting block 63 , a clamping rod 64 and a clamping block 65 . The sliding block 61 is sleeved on the outer peripheral side of the support rod 5 , and the sliding block 61 is slidably connected to the support rod 5 along the length direction of the support rod 5 . There are two connecting rods 62 . The two connecting rods 62 are symmetrically arranged on both sides of the support rod 5 . One end of the connecting rods 62 is fixed to the sliding block 61 and the other end extends away from the sliding block 61 . The connecting block 63 is located at one end of the connecting rod 62 away from the sliding block 61, the clamping rod 64 is parallel to the support rod 5, one end of the clamping rod 64 is fixed to the connecting block 63, and the other end is fixedly connected to the clamping block 65.

When the concrete test block 8 needs to be fixed, the concrete test block 8 is placed at the center of the bearing platform 2, and then the two symmetrically arranged clamping blocks 65 are moved to the side close to the concrete test block 8 by the driving assembly , until the two clamping blocks 65 abut on the outer side plate 11 of the concrete test block 8, so that the concrete test block 8 is positioned on the bearing platform 2. It will not tilt to one side, which is beneficial to ensure the stability of the concrete test block 8 during the detection process.

Referring to FIGS. 3 and 4 , in order to enable the clamping device to fix both the concrete test block 8 whose side is a plane surface and the concrete test block 8 whose side is a circumferential surface, in this embodiment, the clamping rod 64 There are two. One of the clamping blocks 65 connected to the clamping rod 64 has a square cross-section, which can fix the concrete test block 8 whose side is flat; the clamping block 65 connected to the other clamping rod 64 is square. The cross section of the clamp block 65 is arc-shaped, and the arc-shaped opening of the clamping block 65 faces the side away from the clamping rod 64, which can fix the concrete test block 8 whose side is a circumferential surface.

In order to facilitate the switching of the clamping block 65 , in this embodiment, the cross-sections of the connecting rod 62 and the connecting block 63 are both circular, and the connecting block 63 is sleeved on the end of the connecting rod 62 away from the sliding block 61 , and the connecting block 63 is connected to the connecting block 63 . The rod 62 is connected around the circumferential rotation of the connecting rod 62 , and the position of the clamping block 65 can be adjusted according to the shape of the concrete test block 8 . After the position of the clamping block 65 is adjusted, the connecting block 63 needs to be positioned on the connecting rod 62 to prevent the connecting block 63 from continuing to rotate around the connecting rod 62 in the circumferential direction. In order to solve this problem, the connecting rod 62 is provided with two positioning holes 621 , and the connecting block 63 is provided with a plug hole 631 , and a plug 66 is inserted through the corresponding plug hole 631 and the positioning hole 621 . The clamping block 65 can be positioned by rotating the connecting block 63 so that the position of the pin hole 631 corresponds to the positioning hole 621 , and then inserting the pin 66 into the corresponding pin hole 631 and the positioning hole 621 .

In this embodiment, the central axis of at least one positioning hole 621 is parallel to the support rod 5 , and the angle formed by the central axes of the two positioning holes 621 is equal to the angle formed by the two clamping rods 64 .

Referring to FIGS. 2 and 5 , two sets of drive assemblies are symmetrically arranged, and are respectively used to drive two symmetrically arranged sliding blocks 61 to slide along the support rod 5 . Specifically, the drive assembly includes a motor 71 , a drive screw 72 , a sliding seat 73 , a guide seat 74 and a guide groove 75 .

The motor 71 is fixed on the side of the side plate 11 facing the other side plate 11 , and the output shaft of the motor 71 is fixedly connected with the drive screw 72 . The drive screw 72 is parallel to the side plate 11 and perpendicular to the support rod 5 , and the drive screw 72 and the support rod 5 are located on the same plane. The sliding seat 73 is screwed with the driving screw 72 , and the guide seat 74 is arranged on the side of the sliding seat 73 close to the side plate 11 . The guide groove 75 is opened on the side plate 11, the length direction of the guide groove 75 is consistent with the length direction of the transmission screw 72, and the cross section of the guide seat 74 is adapted to the shape and size of the cross section of the guide groove 75. The guide seat 74 It is slidably arranged in the guide groove 75 . In addition, a linking rod 67 is disposed between the sliding seat 73 and the sliding block 61 . One end of the linking rod 67 is hinged to the sliding block 61 , and the other end is hinged to the sliding seat 73 . When the motor 71 is activated, the driving screw 72 rotates and drives the sliding seat 73 to move along the length direction of the guide groove 75, thereby driving the sliding block 61 to move along the length direction of the support rod 5, so that the clamping block 65 is close to or away from the concrete test block 8.

Specifically, in this embodiment, the guide seat 74 is a dovetail seat, and the guide groove 75 is a dovetail groove. The dovetail seat is slidably arranged in the dovetail groove, which is beneficial to better guide the sliding seat 73 .

Referring to FIG. 2 , in order to prevent the concrete test block 8 from splashing after rupture, which is easy to cause harm to the human body, in this embodiment, baffle plates 13 are respectively provided on both sides of the side plate 11, and one baffle plate 13 is fixed on the two side plates. 11 , one side of another baffle 13 is hinged to the side plate 11 . When the concrete test block 8 needs to be placed on the bearing table 2, the hinged baffle 13 can be opened, and the concrete test block 8 can be placed on the bearing table 2; when the concrete test block 8 is fixed, the hinged block The plate 13 is closed, and the electric screw 4 is started again to drive the movable pressing table 3 to move down.

The implementation principle of this embodiment is as follows: when in use, place the concrete test block 8 at the center of the bearing platform 2, turn its connecting block 63, select a clamping block 65 that matches the concrete test block 8, and pass the plug 66 to limit the connection block 63; then start the motor 71 to move the two clamping blocks 65 to the side close to the concrete test block 8 until the clamping block 65 is pressed against the side of the concrete test block 8, then Activate the electric screw 4, so that the electric screw 4 drives the movable pressing table 3 to move toward the side close to the concrete test block 8, and the compression test of the concrete test block 8 is completed.

The examples of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention are not It should be covered within the protection scope of the present invention.

Claims (7)

1. A pressure testing machine with an adjustable clamping device, comprising a base (1), two side plates (11) disposed on opposite sides of the base (1), and two side plates (11) disposed on the two side plates (11) A beam (12) on the side away from the base (1), a pressure-bearing platform (2) arranged on the base (1) and located between the two side plates (11), and arranged on the pressure-bearing platform (2) a movable pressing table (3) directly above, a driving structure that is fixedly connected to the movable pressing table (3) to drive the movable pressing table (3) to approach or be away from the bearing table (2); which It is characterized in that: a clamping device for clamping the concrete test block (8) is arranged between the two side plates (11), and the clamping device comprises two symmetrically arranged above the bearing platform (2). A support rod (5), a clamping structure slidably arranged on the support rod (5), and a driving assembly for driving the clamping structure to slide along the length direction of the support rod (5). 2. A pressure testing machine with an adjustable clamping device according to claim 1, characterized in that: the clamping structure comprises a slidable arrangement on the support rod (5) along the length direction of the support rod (5) The sliding block (61), the connecting rod (62) disposed on the sliding block (61), and the clamping assembly disposed on the connecting rod (62); the clamping assembly includes a connecting rod (62) disposed on the connecting rod (62); A connecting block (63) of the connecting rod (62), a clamping rod (64) connected to the connecting block (63) and perpendicular to the connecting rod (62), and a clamping rod (64) disposed on the clamping rod (64) ) at one end of the clamping block (65) away from the connecting block (63). 3. A pressure testing machine with an adjustable clamping device according to claim 2, wherein the connecting block (63) has two clamping rods (64) extending outward along its radial direction, one of which is One end of the clamping rod (64) away from the connection block (63) is provided with a clamping block (65) with a square cross section, and the other clamping rod (64) is away from the connection block (63) A clamping block (65) with an arc-shaped cross-section is provided at one end of the connecting block (65); wherein, the connecting block (63) is connected with the connecting rod (62) in the circumferential direction of the connecting rod (62). The connecting block (63) is provided with a locking assembly for confining the connecting block (63) to the connecting rod (62). 4. A pressure testing machine with an adjustable clamping device according to claim 3, wherein the locking assembly comprises two positioning holes (621) provided on the connecting rod (62), The bolt hole (631) of the connecting block (63) and the bolt (66) passing through the bolt hole (631) and the positioning hole (621) at the same time; wherein, one of the positioning holes (621) The central axis is parallel to the connecting rod (62), and the included angle formed by the central axes of the two positioning holes (621) is equal to the included angle formed by the two clamping bars (64). 5. A pressure testing machine with an adjustable clamping device according to claim 2, wherein the drive assembly comprises a motor (71) disposed on the side plate (11), and the motor The drive screw (72) fixedly connected to the output shaft of (71), the sliding seat (73) threadedly matched with the driving screw (72), and the sliding seat (73) disposed on the side plate facing the side plate A guide seat (74) on one side of (11) and a guide groove (75) opened on the side plate (11) to guide the guide seat (74); wherein the length of the guide groove (75) The direction is consistent with the length direction of the drive screw (72), and a linkage rod (67) is connected between the sliding seat (73) and the sliding block (61), and the linkage rod (67) ) is hinged to the sliding seat (73) at one end, and hinged to the sliding block (61) at the other end. 6. A pressure testing machine with an adjustable clamping device according to claim 5, characterized in that: the guide seat (74) is a dovetail seat, and the guide groove (75) is a dovetail groove, so The dovetail seat is slidably arranged in the dovetail groove. 7. A pressure testing machine with an adjustable clamping device according to claim 1, characterized in that: baffle plates (13) are respectively provided on opposite sides of the two side plates (11), one of which is The baffle plate (13) is fixed between the two side plates (11), and one side of the other baffle plate (13) is hinged to one of the side plates (11).

Images