Limiting protection device of electronic tensile machine

Abstract

The utility model relates to the field of tensile machine protection devices, and discloses a limiting protection device of an electronic tensile machine, which comprises a mounting rack, the inner walls of two opposite sides of the mounting rack are fixedly connected with the same transverse plate, the top of the transverse plate is fixedly connected with a motor, an output shaft of the motor is fixedly sleeved with a driving screw rod, and the driving screw rod is fixedly connected with the mounting rack. The outer wall of the driving screw is sleeved with a lifting cover in a threaded mode, the bottom of the lifting cover is fixedly connected with two connecting plates, the two connecting plates penetrate through the transverse plate and extend to the bottom of the transverse plate, and the bottoms of the two connecting plates are fixedly connected with the same supporting frame. According to the utility model, the use is simple, the plurality of limiting ropes can pull the support frame to prevent excessive rising, and when the limiting ropes exceed the maximum bearing force, the support frame which continues rising presses the emergency stop switch, so that the motor is stopped to prevent the support frame from continuing rising to protect a measured object, and the rising height of the first clamping plate can be observed through the scales on one side.

Description

Technical Field

[0001] The utility model relates to the field of protection devices for tensile machines, in particular to a position limiting protection device for an electronic tensile machine. Background Art

[0002] The utility model with the authorization announcement number: CN220154088U relates to the technical field of electronic tensile machine protection devices, and proposes a position limiting protection device for an electronic tensile machine, including a mounting frame, a driving assembly is arranged on the mounting frame, and the truss can be moved up and down, a protection assembly is slidably arranged on the base, and a transmission assembly is arranged inside the base. When the truss is moved up and down by the driving assembly, the driving screw on the driving assembly can drive the second bevel gear to rotate, and the second bevel gear can drive the shaft rod to rotate through the first bevel gear. When the shaft rod rotates, it drives the two transmission gears to rotate synchronously. During the rotation of the transmission gear, the outer frame can be driven to move through the rack. Therefore, when performing a tensile test, the outer frame can drive the inner plate inside it to move toward the first stand by itself, and the space between the front and rear sides of the first stand and the second stand is blocked, providing protection for the tensile test process.

[0003] The above utility model patent has few limiting structures, so it is easy to exceed the maximum bearing capacity of the object being tested during testing, resulting in the object being tested exceeding the maximum bearing capacity and being violently destroyed. Therefore, technical personnel in this field provide a limiting protection device for an electronic tensile testing machine to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a position limiting protection device for an electronic tensile machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a position limiting protection device for an electronic tensile testing machine, comprising a mounting frame, wherein the inner walls on opposite sides of the mounting frame are fixedly connected to the same horizontal plate, the top of the horizontal plate is fixedly connected to a motor, a driving screw is fixedly sleeved on the output shaft of the motor, a lifting cover is threadedly sleeved on the outer wall of the driving screw, the bottom of the lifting cover is fixedly connected to two connecting plates, the two connecting plates penetrate the horizontal plate and extend to the bottom of the horizontal plate, the bottoms of the two connecting plates are fixedly connected to the same support frame, and the support The four bottom corners of the frame are fixedly connected with a rectangular plate, and the bottom of the rectangular plate is fixedly connected with a limit rope, and the bottom end of the limit rope is fixedly connected to the bottom inner wall of the mounting frame, an emergency stop switch is arranged at the bottom of the transverse plate, and the bottom of the support frame is connected with a mounting plate, and the inner side of the mounting plate is rotatably connected with a first bidirectional screw, and two first clamping plates are threadedly sleeved on the outer wall of the first bidirectional screw, and the top of the first clamping plate is slidably connected to the bottom of the support frame, and a clamping assembly for clamping the object to be measured is arranged on the bottom inner wall of the mounting frame, and the motor is electrically connected to the emergency stop switch.

[0006] As a further solution of the utility model: the clamping assembly includes a second bidirectional screw rotatably connected to the inner wall of the mounting frame, the outer wall thread sleeve of the second bidirectional screw is provided with two second clamping plates, and the bottom of the two second clamping plates is slidably connected to the bottom inner wall of the mounting frame, and the second clamping plate is located below the first clamping plate.

[0007] As a further solution of the utility model: a plurality of anti-slip grooves are arranged in a transverse array on one side of the two first clamping plates close to each other, and the connecting plate and the supporting frame are U-shaped.

[0008] As a further solution of the utility model: the mounting frame is U-shaped, and one side of the mounting frame is vertically arranged with scales.

[0009] As a further solution of the utility model: two support plates are fixedly connected to both sides of the mounting frame, and the support plates are triangular.

[0010] As a further solution of the utility model: a rectangular groove is opened on the inner wall of one side of the mounting frame, and the first bidirectional screw is opposite to the rectangular groove.

[0011] As a further solution of the utility model: the limiting rope is made of a high-toughness material, two through holes are opened on the top of the support frame, and two connecting plates pass through the two through holes.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The object to be measured is placed between the two second clamping plates and the second bidirectional screw is rotated. After the second bidirectional screw is rotated, the two second clamping plates are driven to approach each other to clamp the object to be measured, and then the first bidirectional screw is rotated to make the two first clamping plates move away from each other. After the support frame descends, the two first clamping plates will be driven to descend, and the first bidirectional screw will be rotated when it descends to the point where the object to be measured can be clamped. After the first bidirectional screw is rotated, the two first clamping plates can be driven to approach each other to clamp the upper end of the object to be measured. After clamping is completed, the motor can be started again to drive the support frame to rise. At this time, the two first clamping plates will stretch the object to be measured for detection. While the support frame rises, the limit rope will also be stretched. The limit rope can pull the support frame to prevent excessive rising, thereby limiting the position. If the support frame rises and pulls the limit rope to the maximum stretching distance, the limit rope will break, and the support frame will touch the emergency stop switch. After the emergency stop switch is touched and pressed, the motor will immediately stop driving the drive screw to rotate. At this time, the support frame can no longer rise, thereby preventing excessive stretching of the object to be measured.

[0014] The utility model is easy to use. A plurality of limit ropes can hold the support frame to prevent excessive rising. When the limit ropes exceed the maximum bearing capacity, the support frame that continues to rise will press the emergency stop switch, thereby stopping the motor to prevent the support frame from continuing to rise to protect the object to be measured. The rising height of the first clamping plate can be observed through the scale on one side. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the splitting of the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the emergency stop switch in the utility model;

[0018] Figure 4 It is a three-dimensional schematic diagram of the lifting cover in the utility model.

[0019] In the figure: 1. mounting frame; 2. connecting plate; 3. lifting cover; 4. driving screw; 5. transverse plate; 6. first bidirectional screw; 7. rectangular groove; 8. first clamping plate; 9. second bidirectional screw; 10. supporting plate; 11. anti-slip groove; 12. second clamping plate; 13. limiting rope; 14. mounting plate; 15. rectangular plate; 16. supporting frame; 17. scale; 18. motor; 19. through hole; 20. emergency stop switch. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 In the embodiment of the utility model, a limit protection device for an electronic tensile machine includes a mounting frame 1, the inner walls on opposite sides of the mounting frame 1 are fixedly connected to the same horizontal plate 5, the top of the horizontal plate 5 is fixedly connected to a motor 18, a driving screw 4 is fixedly sleeved on the output shaft of the motor 18, a lifting cover 3 is threadedly sleeved on the outer wall of the driving screw 4, the bottom of the lifting cover 3 is fixedly connected to two connecting plates 2, the two connecting plates 2 penetrate the horizontal plate 5 and extend to the bottom of the horizontal plate 5, the bottom of the two connecting plates 2 is fixedly connected to the same support frame 16, and the bottom four corners of the support frame 16 are fixedly connected A rectangular plate 15 is connected, and the bottom of the rectangular plate 15 is fixedly connected to a limit rope 13, and the bottom end of the limit rope 13 is fixedly connected to the bottom inner wall of the mounting frame 1, an emergency stop switch 20 is arranged at the bottom of the transverse plate 5, and the bottom of the support frame 16 is connected to a mounting plate 14, and the inner side of the mounting plate 14 is rotatably connected to a first bidirectional screw 6, and two first clamping plates 8 are threadedly sleeved on the outer wall of the first bidirectional screw 6, and the top of the first clamping plate 8 is slidably connected to the bottom of the support frame 16, and a clamping assembly for clamping the object to be measured is arranged on the bottom inner wall of the mounting frame 1, and the motor 18 and the emergency stop switch 20 are electrically connected.

[0022] In this embodiment, the clamping assembly includes a second bidirectional screw 9 rotatably connected to the inner wall of the mounting frame 1, the outer wall of the second bidirectional screw 9 is threadedly sleeved with two second clamping plates 12, and the bottom of the two second clamping plates 12 is slidably connected to the bottom inner wall of the mounting frame 1, and the second clamping plate 12 is located below the first clamping plate 8. The object to be measured is placed between the two second clamping plates 12 and the second bidirectional screw 9 is rotated. After the second bidirectional screw 9 rotates, the two second clamping plates 12 are driven to approach each other to clamp the object to be measured, and then the first bidirectional screw 6 is rotated to make the two first clamping plates 8 move away from each other, thereby leaving space between the two first clamping plates 8, and then the motor 18 is started to drive the driving screw 4 to rotate. After the driving screw 4 rotates, it can drive the lifting cover 3 to descend. After the lifting cover 3 descends, it will drive the two connecting plates 2 and the support frame 16 to descend. After the support frame 16 descends, it will drive the two first clamping plates 8 to descend. When it descends to the point where the object to be measured can be clamped, the first bidirectional screw 6 is rotated. After the first bidirectional screw 6 rotates, it can drive the two first clamping plates 8 to approach each other to clamp the upper end of the object to be measured.

[0023] In this embodiment, a plurality of anti-slip grooves 11 are arranged in a transverse array on the sides of the two first clamping plates 8 that are close to each other, and the connecting plate 2 and the supporting frame 16 are in a U shape.

[0024] In this embodiment, the mounting frame 1 is U-shaped, and scales 17 are vertically arranged on one side of the mounting frame 1 .

[0025] In this embodiment, two support plates 10 are fixedly connected to both sides of the mounting frame 1, and the support plates 10 are triangular in shape.

[0026] In this embodiment, a rectangular groove 7 is formed on an inner wall of one side of the mounting frame 1 , and the first bidirectional screw rod 6 is opposite to the rectangular groove 7 .

[0027] In this embodiment, the limit rope 13 is made of a high-toughness material, two through holes 19 are provided on the top of the support frame 16, and the two connecting plates 2 pass through the two through holes 19. The two first clamps 8 will stretch the object to be tested for detection, and the support frame 16 will also stretch the limit rope 13 while rising. The limit rope 13 can hold the support frame 16 to prevent excessive rising, thereby limiting the position. When the support frame 16 rises and pulls the limit rope 13 to the maximum stretching distance, the limit rope 13 will break. At this time, the support frame 16 will touch the emergency stop switch 20. After the emergency stop switch 20 is touched and pressed, the motor 18 will immediately stop driving the drive screw 4 to rotate. At this time, the support frame 16 can no longer rise, thereby preventing excessive stretching of the object to be tested.

[0028] The working principle of the utility model is: the object to be measured is placed between the two second clamping plates 12 and the second bidirectional screw 9 is rotated. After the second bidirectional screw 9 is rotated, the two second clamping plates 12 are driven to approach each other to clamp the object to be measured, and then the first bidirectional screw 6 is rotated to make the two first clamping plates 8 move away from each other, thereby leaving space between the two first clamping plates 8, and then the motor 18 is started to drive the driving screw 4 to rotate. After the driving screw 4 rotates, the lifting cover 3 can be driven to descend. After the lifting cover 3 descends, it will drive the two connecting plates 2 and the support frame 16 to descend. After the support frame 16 descends, it will drive the two first clamping plates 8 to descend. When it descends to the point where the object to be measured can be clamped, the first bidirectional screw 6 is rotated. After the first bidirectional screw 6 is rotated, it can drive the two first clamping plates 8 to approach each other to clamp the object to be measured. The upper end of the measured object is clamped, and anti-slip grooves 11 are provided on the inner sides of the two first clamping plates 8 to effectively prevent slipping during clamping. After clamping is completed, the motor 18 can be started again to drive the support frame 16 to rise. At this time, the two first clamping plates 8 will stretch the measured object for detection. While the support frame 16 rises, the limit rope 13 will be stretched. The limit rope 13 can hold the support frame 16 to prevent excessive rising, thereby limiting the position. When the support frame 16 rises and pulls the limit rope 13 to the maximum stretching distance, the limit rope 13 will break. At this time, the support frame 16 will touch the emergency stop switch 20. After the emergency stop switch 20 is touched and pressed, the motor 18 will immediately stop driving the drive screw 4 to rotate. At this time, the support frame 16 can no longer rise, thereby preventing excessive stretching of the measured object.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A position limiting protection device for an electronic tensile testing machine, comprising a mounting frame (1), characterized in that: The mounting frame (1) is fixedly connected to the inner walls of opposite sides thereof with a same transverse plate (5); the top of the transverse plate (5) is fixedly connected to a motor (18); a driving screw (4) is fixedly sleeved on the output shaft of the motor (18); a lifting cover (3) is threadedly sleeved on the outer wall of the driving screw (4); the bottom of the lifting cover (3) is fixedly connected to two connecting plates (2); the two connecting plates (2) penetrate the transverse plate (5) and extend to the bottom of the transverse plate (5); the bottoms of the two connecting plates (2) are fixedly connected to the same support frame (16); the four corners of the bottom of the support frame (16) are fixedly connected to rectangular plates (15); and the rectangular plates (15) are fixedly sleeved on the outer wall of the driving screw (4). The bottom of the support frame (16) is fixedly connected with a limit rope (13), and the bottom end of the limit rope (13) is fixedly connected to the bottom inner wall of the mounting frame (1); an emergency stop switch (20) is arranged at the bottom of the transverse plate (5); the bottom of the support frame (16) is connected with a mounting plate (14); the inner side of the mounting plate (14) is rotatably connected with a first bidirectional screw (6); two first clamping plates (8) are threadedly sleeved on the outer wall of the first bidirectional screw (6); the top of the first clamping plate (8) is slidably connected to the bottom of the support frame (16); a clamping assembly for clamping the object to be measured is arranged on the bottom inner wall of the mounting frame (1); and the motor (18) and the emergency stop switch (20) are electrically connected.

2. The position limiting protection device for an electronic tensile machine according to claim 1, characterized in that: The clamping assembly comprises a second bidirectional screw (9) rotatably connected to the inner wall of the mounting frame (1); the outer wall of the second bidirectional screw (9) is threadedly sleeved with two second clamping plates (12); the bottoms of the two second clamping plates (12) are slidably connected to the inner wall of the bottom of the mounting frame (1); the second clamping plates (12) are located below the first clamping plates (8).

3. The position limiting protection device for an electronic tensile machine according to claim 1, characterized in that: A plurality of anti-slip grooves (11) are arranged in a transverse array on one side of the two first clamping plates (8) that are close to each other, and the connecting plate (2) and the supporting frame (16) are in a U shape.

4. The position limiting protection device for an electronic tensile machine according to claim 1, characterized in that: The mounting frame (1) is U-shaped, and one side of the mounting frame (1) is provided with scales (17) arranged vertically.

5. The position limiting protection device for an electronic tensile machine according to claim 1, characterized in that: Two support plates (10) are fixedly connected to both sides of the mounting frame (1), and the support plates (10) are triangular in shape.

6. The position limiting protection device for an electronic tensile machine according to claim 1, characterized in that: A rectangular groove (7) is provided on an inner wall of one side of the mounting frame (1), and the first bidirectional screw rod (6) is opposite to the rectangular groove (7).

7. The position limiting protection device for an electronic tensile machine according to claim 1, characterized in that: The limiting rope (13) is made of a high-toughness material, two through holes (19) are provided on the top of the support frame (16), and the two connecting plates (2) pass through the two through holes (19).

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