Pressure detection device

Abstract

The utility model discloses a pressure detection device which comprises a supporting frame, a lifting driving mechanism is arranged on the supporting frame, a lifting driving rod is arranged at the moving end of the lifting driving mechanism, a sensor is connected to the lower end of the lifting driving rod in a screwed mode, a lifting connecting plate is arranged below the sensor, and a pressure sensor is arranged on the lifting connecting plate. The sensor is connected with the lifting connecting plate through a floating connector, the lifting connecting plate is used for bearing a heavy object, a Z-shaped anti-loosening piece is arranged on the top of the lifting connecting plate, the lower end of the Z-shaped anti-loosening piece is fixedly connected with the lifting connecting plate, a clamping opening is formed in the upper end of the Z-shaped anti-loosening piece, and the lifting connecting plate is fixedly connected with the clamping opening. A clamping groove is formed in the outer side wall of the lifting driving rod, the lifting driving rod is arranged in the clamping opening, and the clamping groove is clamped with the inner edge of the clamping opening. According to the utility model, the installation reliability of the sensor can be improved, and detection errors can be reduced.

Description

Technical Field

[0001] The utility model relates to a pressure detection mechanism of automation equipment, in particular to a pressure detection device. Background Art

[0002] In automation equipment, taking polishing and grinding as an example, in the process of motion control of the actuator, the pressure detection function of the processing position is usually involved to achieve closed-loop control. At present, in the pressure detection devices of common automation equipment, the pressure sensor is generally directly connected to the mechanical structure. Due to errors in processing and installation, there will be a large error between the actual measured data of the pressure sensor and the real data. Especially in the process of repeated movement, it is easy to cause the pressure sensor and the mechanical structure to shift and loosen relative to each other, and cannot guarantee good and reliable closed-loop detection. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a pressure detection device which can improve the installation reliability of the sensor and help reduce the detection error in view of the shortcomings of the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0005] A pressure detection device, which includes a support frame, a lifting drive mechanism is provided on the support frame, a lifting drive rod is provided at the moving end of the lifting drive mechanism, a sensor is threadedly connected to the lower end of the lifting drive rod, a lifting connecting plate is provided below the sensor, the sensor and the lifting connecting plate are connected by a floating connecting head, the lifting connecting plate is used to carry heavy objects, a Z-shaped anti-loosening part is provided on the top of the lifting connecting plate, the lower end of the Z-shaped anti-loosening part is fixedly connected to the lifting connecting plate, the upper end of the Z-shaped anti-loosening part is provided with a bayonet, the outer side wall of the lifting drive rod is formed with a slot, the lifting drive rod is arranged in the slot, and the slot and the inner edge of the slot are engaged with each other.

[0006] Preferably, the lifting drive mechanism is a cylinder, and the lifting drive rod is a piston rod of the cylinder.

[0007] Preferably, a plurality of slots are formed on the outer side wall of the lifting drive rod, and every two slots are symmetrically arranged.

[0008] Preferably, the slot is close to the lower end of the lifting drive rod.

[0009] Preferably, the sensor is fixedly connected to the floating connector by screws.

[0010] Preferably, the lower end of the floating connection head is snap-connected to the lifting connection plate.

[0011] Preferably, a loading plate is fixedly connected to the lower end of the lifting connection plate.

[0012] In the pressure detection device disclosed in the utility model, the support frame serves as a supporting component of the motion mechanism, and the lifting drive mechanism is fixedly installed on it. The lifting drive mechanism drives the lifting connecting plate to move up and down through the lifting drive rod, and the lower end of the lifting drive rod is connected to the lifting connecting plate through the sensor and the floating connecting head in sequence. Based on the floating connection mode between the floating connecting head and the lifting connecting plate, the stress between the two can be adaptively adjusted to avoid the stress between the upper and lower components affecting the detection accuracy of the sensor. At the same time, the utility model fixes a Z-shaped anti-loosening part on the top of the lifting connecting plate, and the upper end of the Z-shaped anti-loosening part is engaged and matched with the slot on the lifting drive rod through the bayonet. Based on the engaging and limiting relationship between the two, the lifting drive rod can be effectively prevented from rotating and shifting relative to the sensor during the lifting movement, thereby ensuring that the relative position of the lifting drive rod and the sensor is fixed. Compared with the prior art, the utility model can improve the reliability of sensor installation and help reduce detection errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a side view of the pressure detection device of the utility model;

[0014] Figure 2 for Figure 1 A magnified view of part A;

[0015] Figure 3 for Figure 1 Sectional view along line CC;

[0016] Figure 4 for Figure 3 Enlarged view of part B. DETAILED DESCRIPTION

[0017] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0018] The utility model discloses a pressure detection device, combined with Figures 1 to 4As shown, it includes a support frame 1, on which a lifting drive mechanism 2 is provided, and a lifting drive rod 20 is provided at the moving end of the lifting drive mechanism 2, and a sensor 3 is screwed at the lower end of the lifting drive rod 20, and a lifting connecting plate 5 is provided below the sensor 3, and the sensor 3 is connected to the lifting connecting plate 5 through a floating connector 4, and the lifting connecting plate 5 is used to carry heavy objects, and a Z-shaped anti-loosening member 6 is provided at the top of the lifting connecting plate 5, and the lower end of the Z-shaped anti-loosening member 6 is fixedly connected to the lifting connecting plate 5, and the upper end of the Z-shaped anti-loosening member 6 is provided with a bayonet 60, and a slot 21 is formed on the outer wall of the lifting drive rod 20, and the lifting drive rod 20 is arranged in the bayonet 60, and the slot 21 and the inner edge of the bayonet 60 are engaged with each other.

[0019] In the above structure, the support frame 1 serves as a supporting member of the motion mechanism, and the lifting drive mechanism 2 is fixedly installed thereon. The lifting drive mechanism 2 drives the lifting connecting plate 5 to move up and down through the lifting drive rod 20. The lower end of the lifting drive rod 20 is connected to the lifting connecting plate 5 through the sensor 3 and the floating connector 4 in sequence. Based on the floating connection mode between the floating connector 4 and the lifting connecting plate 5, the stress between the two can be adaptively adjusted to avoid the stress between the upper and lower components affecting the detection accuracy of the sensor 3. At the same time, the utility model fixes a Z-shaped anti-loosening member 6 on the top of the lifting connecting plate 5. The upper end of the Z-shaped anti-loosening member 6 is engaged with the card slot 21 on the lifting drive rod 20 through the bayonet 60. Based on the engaging and limiting relationship between the two, it can effectively avoid the lifting drive rod 20 from rotating and shifting relative to the sensor 3 during the lifting movement, thereby ensuring that the relative position of the lifting drive rod 20 and the sensor 3 is fixed. Compared with the prior art, the utility model can improve the reliability of sensor installation and help reduce detection errors.

[0020] As a preferred method, combined with Figure 2 and Figure 3 As shown, the lifting drive mechanism 2 is a cylinder, and the lifting drive rod 20 is the piston rod of the cylinder. Among them, because the lifting drive mechanism 2 is a cylinder, when the piston rod of the cylinder moves up and down, it is easy to cause the piston rod to produce angular displacement, and the lower end of the piston rod and the sensor 3 are in a thread matching relationship, then the above angular displacement is easy to cause the connection between the piston rod and the sensor 3 to loosen, thereby reducing the connection reliability. Based on this technical problem, the utility model sets the Z-shaped anti-loosening member 6 on the top of the lifting connection plate 5, based on the engagement and matching limiting relationship between the bayonet 60 and the card slot 21, effectively avoiding the lifting drive rod 20 from rotating and shifting relative to the sensor 3, thereby making the two relatively fixed and improving the sensor installation reliability.

[0021] In order to better engage with the bayonet 60 of the Z-shaped anti-loosening member 6, in this embodiment, the outer wall of the lifting drive rod 20 is formed with a plurality of slots 21, and every two slots 21 are symmetrically arranged. The bayonet 60 may be a U-shaped opening.

[0022] See also Figure 2 In this embodiment, the card slot 21 is close to the lower end of the lifting drive rod 20. In the above structure, the card slot 21 is as close to the lower end of the lifting drive rod 20 as possible, which helps to reduce the height of the Z-shaped anti-loosening member 6 and avoid deformation of the Z-shaped anti-loosening member 6 due to its oversized size.

[0023] In this embodiment, the sensor 3 and the floating connector 4 are directly fixed to each other. Figure 4 The sensor 3 and the floating connector 4 are fixedly connected by screws.

[0024] As a preferred manner, the lower end of the floating connector 4 is engaged with the lifting connector plate 5. In this embodiment, a "I"-shaped connecting block is preferably provided at the lower end of the floating connector 4, and the "I"-shaped connecting block is used to pass through the lifting connector plate 5, and the two are engaged with each other. By providing the "I"-shaped connecting block, this embodiment can have the functions of movable, floating connection and hoisting connection.

[0025] See also Figure 2 In this embodiment, the lower end of the lifting connecting plate 5 is fixedly connected with a carrier plate 7. The carrier plate 7 can be used to install an actuator.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pressure detection device, characterized in that: The invention comprises a support frame (1), wherein a lifting drive mechanism (2) is provided on the support frame (1), a lifting drive rod (20) is provided at the moving end of the lifting drive mechanism (2), a sensor (3) is screwed to the lower end of the lifting drive rod (20), a lifting connection plate (5) is provided below the sensor (3), the sensor (3) and the lifting connection plate (5) are connected via a floating connection head (4), the lifting connection plate (5) is used to carry heavy objects, a Z-shaped anti-loosening member (6) is provided at the top of the lifting connection plate (5), the lower end of the Z-shaped anti-loosening member (6) is fixedly connected to the lifting connection plate (5), the upper end of the Z-shaped anti-loosening member (6) is provided with a bayonet (60), a slot (21) is formed on the outer wall of the lifting drive rod (20), the lifting drive rod (20) is arranged in the bayonet (60), and the slot (21) and the inner edge of the bayonet (60) are mutually engaged.

2. The pressure detection device according to claim 1, characterized in that: The lifting drive mechanism (2) is a cylinder, and the lifting drive rod (20) is a piston rod of the cylinder.

3. The pressure detection device according to claim 1, characterized in that: The outer side wall of the lifting drive rod (20) is formed with a plurality of slots (21), and every two slots (21) are symmetrically arranged.

4. The pressure detection device according to claim 1, characterized in that: The clamping slot (21) is close to the lower end of the lifting drive rod (20).

5. The pressure detection device according to claim 1, characterized in that: The sensor (3) and the floating connector (4) are fixedly connected via screws.

6. The pressure detection device according to claim 1, characterized in that: The lower end of the floating connection head (4) is snap-connected to the lifting connection plate (5).

7. The pressure detection device according to claim 1, characterized in that: The lower end of the lifting connection plate (5) is fixedly connected to a loading plate (7).

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