Assembly tool for pressure sensor

Abstract

The utility model relates to the field of pressure sensors, and discloses an assembly tool for a pressure sensor, which comprises a base, a rotating disc and an adsorption grabbing disc, two groups of symmetrically distributed movable screw rods are rotatably mounted between two fixed plates through bearings, a movable plate is mounted on the two movable screw rods in a left-right moving manner, and the adsorption grabbing disc is mounted on the movable plate. The lifting air cylinders are installed on the left side and the right side of the upper portion of the movable plate correspondingly, push rods of the lifting air cylinders penetrate through the movable plate to be arranged below the movable plate, the adsorption grabbing disc is fixed to the bottom ends of the push rods of the lifting air cylinders, and the rotating disc is rotationally arranged on the surface of the upper end of the base and connected with an output shaft of the rotating motor through a shaft rod. The two symmetrical lifting air cylinders are arranged above the movable plate, the two adsorption grabbing discs are arranged below the two lifting air cylinders correspondingly, when one lifting air cylinder is used for assembling the wax injection force sensor, the other lifting air cylinder can grab accessories to make preparations for next-time assembling, and the assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of pressure sensors, in particular to an assembly tool for pressure sensors. Background Art

[0002] Pressure sensors are one of the most commonly used sensors in industrial practice. Dedicated assembly tooling is typically required for assembling the outer housing of a pressure sensor. Chinese utility model patent publication number CN218193584U discloses an assembly tool for pressure sensor processing. The tool comprises a base plate and a support frame. A lifting mechanism drives the sensor cover to move vertically and rotate, facilitating simultaneous threaded connection when in contact with the pressure sensor. A clamping mechanism ensures that the pressure sensor and the sensor cover are aligned in center position, ensuring a proper threaded connection without damaging the internal threads. Two sets of fixed rods limit the pressure sensor's rotation, allowing it to rotate normally when clamped by a sliding block without damaging the outer wall of the pressure sensor.

[0003] The inventors believe that the above-mentioned related technology has the following drawbacks: In the above-mentioned structure, the upper cover mechanism is placed directly above the clamping mechanism. Each time the sensor cover is loaded, it must be manually placed into the mounting block in the upper cover mechanism and secured with a pneumatic suction cup before it can be screwed into place. This method results in relatively low assembly efficiency. To address this, we have designed an assembly tool for pressure sensors. Utility Model Content

[0004] In order to solve the technical problem of low assembly efficiency, the utility model provides an assembly tool for a pressure sensor.

[0005] The utility model adopts the following technical scheme to achieve: an assembly tool for a pressure sensor, including a base, a rotating disk and an adsorption grabbing plate, two symmetrical fixed plates are respectively provided on the left and right sides above the base through two support columns, two groups of symmetrically distributed movable screws are rotatably installed between the two fixed plates through bearings, and the movable plate is installed on the two movable screws for left and right movement, and a lifting cylinder is installed on the left and right sides above the movable plate, the push rod of the lifting cylinder passes through the movable plate and is placed below it, and the adsorption grabbing plate is fixed to the bottom end of the push rod of the lifting cylinder, the rotating disk is rotatably set on the upper end surface of the base, and the rotating disk is connected to the output shaft of the rotating motor through the shaft.

[0006] As a further improvement to the above solution, the rotating disk is rotatably placed on the upper end surface of the fixed disk, the upper end surface of the fixed disk is recessed downward to form an annular groove, and a rotating ring is provided at the bottom end of the rotating disk, and the rotating ring is sealed and rotatably placed in the annular groove;

[0007] A plurality of evenly distributed adsorption holes are provided on the upper end surface of the rotating disk, and the adsorption holes are connected to the annular groove. The annular groove is connected to an external negative pressure pump through an air pipe. The negative pressure pump can make the adsorption holes suck air outward through the annular groove, thereby enabling the pressure sensor placed above the rotating disk to be adsorbed and fixed.

[0008] As a further improvement of the above scheme, a positioning chuck is provided on the upper end surface of the base, and the positioning chuck is sleeved on the outer ring surface of the rotating disk. A positioning roller is installed on the innermost end above the clamping claw of the positioning chuck through an axle pin. The positioning chuck is a positioner chuck, and its operating principle is similar to that of the three-jaw chuck, and its middle is hollow, which is convenient for placing the rotating disk.

[0009] As a further improvement of the above solution, a portion of the inner end of the claw on the positioning chuck is cut away to form a notch, and the lower surface of the notch of the claw on the positioning chuck is above the upper surface of the rotating disk, and the two are not in contact. After the pressure sensor is placed above the rotating disk, it will contact the positioning roller, and then it can be positioned so that it is at the center of the rotating disk, thereby ensuring the accuracy of subsequent installation.

[0010] As a further improvement of the above solution, two symmetrically arranged threaded holes are formed on the left and right sides of the movable plate, and the threaded holes are threadedly connected to the movable screw rod. The rotation of the movable screw rod can make the movable plate move back and forth left and right, thereby assembling the pressure sensor.

[0011] As a further improvement to the above solution, the right ends of the two movable screws are both passed through the right fixed plate and placed to the right of it, and the right ends of the movable screws are installed with driven pulleys. The movable screws are also provided with electromagnetic brakes, which are connected in series with the movable motor. When the movable motor stops running, it can stop the movable screws from rotating, thereby ensuring accuracy.

[0012] The mobile motor is installed on the fixed plate on the right side through a bracket, and a driving pulley is installed on the output shaft of the mobile motor. The driving pulley and the driven pulley are connected by a toothed belt. The driven pulley and the driving pulley are evenly toothed. The rotation of the mobile motor can make the two mobile screws rotate synchronously, thereby enabling the mobile plate to drive

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model arranges two symmetrical lifting cylinders above the movable plate, and two adsorption grabbing plates are arranged under the two lifting cylinders respectively. When one of them is assembling the wax pressure sensor, the other can grab the accessories to prepare for the next assembly, thereby improving the assembly efficiency;

[0015] 2. By setting a positioning chuck on the outer ring of the rotating disk, an adjustable positioning roller is provided on the positioning chuck. The positioning roller can make the pressure sensor base placed on the rotating disk in the center position, ensuring the accuracy during assembly and being suitable for pressure sensors of various sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an assembly tool for a pressure sensor provided by the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the bottom structure;

[0018] Figure 3 for Figure 1 Schematic diagram without the positioning chuck installed;

[0019] Figure 4 for Figure 1 Front view of

[0020] Figure 5 It is a schematic diagram of the structure of the positioning roller and the clamping claw in the positioning chuck.

[0021] Description of main symbols:

[0022] 1. Base; 11. Support column; 12. Fixed plate; 2. Lifting cylinder; 3. Adsorption grabbing plate; 4. Moving plate; 5. Moving screw; 51. Driven pulley; 6. Moving motor; 61. Driving pulley; 7. Positioning chuck; 71. Positioning roller; 8. Rotating plate; 81. Adsorption hole; 82. Fixed plate; 9. Rotating motor. DETAILED DESCRIPTION

[0023] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example:

[0025] Please combine Figure 1-Figure 5, an assembly tool for a pressure sensor in this embodiment includes a base 1, a rotating disk 8 and an adsorption grabbing disk 3. Two symmetrical fixed plates 12 are respectively provided on the left and right sides above the base 1 through two support columns 11. Two groups of symmetrically distributed moving screws 5 are rotatably installed between the two fixed plates 12 through bearings. The moving plate 4 is installed on the two moving screws 5 for left and right movement. A lifting cylinder 2 is installed on the left and right sides above the moving plate 4. The push rod of the lifting cylinder 2 passes through the moving plate 4 and is placed below it, and the adsorption grabbing disk 3 is fixed to the bottom end of the push rod of the lifting cylinder 2. The rotating disk 8 is rotatably set on the upper end surface of the base 1, and the rotating disk 8 is connected to the output shaft of the rotating motor 9 through a shaft.

[0026] The rotating disk 8 is rotatably placed on the upper surface of the fixed disk 82. The upper surface of the fixed disk 82 is concave downward to form an annular groove. A rotating ring is provided at the bottom of the rotating disk 8. The rotating ring is sealed and rotatably placed in the annular groove.

[0027] A plurality of evenly distributed adsorption holes 81 are provided on the upper surface of the rotating disk 8, and the adsorption holes 81 are connected to the annular groove, and the annular groove is connected to an external negative pressure pump through an air pipe. The negative pressure pump can make the adsorption holes 81 suck air outward through the annular groove, thereby enabling the pressure sensor placed above the rotating disk 8 to be adsorbed and fixed.

[0028] A positioning chuck 7 is provided on the upper end surface of the base 1, and the positioning chuck 7 is sleeved on the outer ring surface of the rotating disk 8. A positioning roller 71 is installed on the innermost end above the claws of the positioning chuck 7 through an axle pin. The positioning chuck 7 is a positioner chuck, and its operating principle is similar to that of a three-jaw chuck, and its middle is hollow, which is convenient for placing the rotating disk 8.

[0029] The claw on the positioning chuck 7 is cut away at one end toward the inside to form a notch. The lower surface of the notch of the claw on the positioning chuck 7 is above the upper surface of the rotating disk 8, and the two are not in contact. After the pressure sensor is placed above the rotating disk 8, it will contact the positioning roller 71, and then it can be positioned so that it is at the center of the rotating disk 8, ensuring the accuracy of subsequent installation. After adjusting the position of the positioning roller 71 once, there is no need to position the pressure sensor of the same size when placing it again, and it can be directly placed between the three positioning rollers 71.

[0030] Two symmetrically arranged threaded holes are formed on the left and right sides of the movable plate 4, and the threaded holes are threadedly connected to the movable screw rod 5. The rotation of the movable screw rod 5 can make the movable plate 4 move back and forth, thereby assembling the pressure sensor.

[0031] The right ends of the two moving screw rods 5 pass through the fixed plate 12 on the right side and are placed on the right side thereof, and the right ends of the moving screw rods 5 are installed with driven pulleys 51. The moving screw rods 5 are also provided with electromagnetic brakes, which are connected in series with the moving motor 6. When the moving motor 6 stops running, it can stop the moving screw rods 5 from rotating, thereby ensuring accuracy.

[0032] The mobile motor 6 is installed on the fixed plate 12 on the right side through a bracket, and a driving pulley 61 is installed on the output shaft of the mobile motor 6. The driving pulley 61 is connected to the driven pulley 51 through a toothed belt. The driven pulley 51 and the driving pulley 61 are evenly toothed pulleys. The rotation of the mobile motor 6 can make the two moving screws 5 rotate synchronously, and then the moving plate 4 can be driven.

[0033] The implementation principle of an assembly tool for a pressure sensor in the embodiment of the present application is as follows: in actual use, we set a discharge seat on the left and right sides above the base 1 respectively, and multiple upper covers are stacked on the discharge seat. The spacing between the three positioning rollers 71 is adjusted according to the outer diameter of the bottom of the pressure sensor, so that the outer ring surface of the positioning roller 71 is in rolling contact with the outer surface of the wax pressure sensor (the adjustment method of the positioning roller 71 is the adjustment method of the positioning chuck 7). The pressure sensor is placed above the rotating disk 8 and is firmly adsorbed on the rotating disk 8 through a negative pressure pump. Then the lifting cylinder 2 on the left is adjusted. It will move downward and clamp the upper cover on the lower left through the suction grabbing disc 3 below, and move to the middle position under the action of the moving plate 4 and the moving screw 5. At this time, the suction grabbing disc 3 originally in the middle will move to the right position. At this time, the suction grabbing disc 3 holding the upper cover will move downward and place the upper cover on the pressure sensor, and the rotating motor 9 will rotate the rotating disc 8 and the upper cover, so that the upper cover can be screwed onto the pressure sensor. During the screwing process, the suction gripper on the right continues to grab the next upper cover, and this cycle is repeated to continuously perform the assembly operation.

[0034] By arranging two symmetrical lifting cylinders 2 above the movable plate 4, and two adsorption grabbing plates 3 respectively arranged under the two lifting cylinders 2, one of them can be used to assemble the wax pressure sensor while the other can grab the accessories to prepare for the next assembly, thereby improving the assembly efficiency;

[0035] By arranging a positioning chuck 7 on the outer ring of the rotating disk 8, an adjustable positioning roller 71 is provided on the positioning chuck 7. The positioning roller 71 can make the pressure sensor base 1 placed on the rotating disk 8 be in the center position, thereby ensuring the accuracy during assembly and being suitable for pressure sensors of various sizes.

[0036] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. An assembly tool for a pressure sensor, comprising a base (1), a rotating disk (8) and an adsorption grabbing disk (3), characterized in that: Two symmetrical fixed plates (12) are respectively provided on the left and right sides above the base (1) through two support columns (11). Two groups of symmetrically distributed movable screw rods (5) are rotatably installed between the two fixed plates (12) through bearings. The movable plate (4) is installed on the two movable screw rods (5) for left and right movement. A lifting cylinder (2) is installed on the left and right sides above the movable plate (4). The push rod of the lifting cylinder (2) passes through the movable plate (4) and is placed below it. The adsorption grabbing plate (3) is fixed to the bottom end of the push rod of the lifting cylinder (2). The rotating disk (8) is rotatably arranged on the upper end surface of the base (1), and the rotating disk (8) is connected to the output shaft of the rotating motor (9) through a shaft.

2. The assembly tool for a pressure sensor according to claim 1, characterized in that: The rotating disk (8) is rotatably placed on the upper end surface of the fixed disk (82), the upper end surface of the fixed disk (82) is concave downward to form an annular groove, and a rotating ring is provided at the bottom end of the rotating disk (8), and the rotating ring is sealed and rotatably placed in the annular groove; The upper surface of the rotating disk (8) is provided with a plurality of evenly distributed adsorption holes (81), and the adsorption holes (81) are communicated with an annular groove, and the annular groove is connected to an external negative pressure pump through an air pipe.

3. The assembly tool for a pressure sensor according to claim 1, wherein: A positioning chuck (7) is provided on the upper end surface of the base (1), and the positioning chuck (7) is sleeved on the outer ring surface of the rotating disk (8). A positioning roller (71) is rotatably mounted on the innermost end above the clamping claw of the positioning chuck (7) via an axle pin.

4. The assembly tool for a pressure sensor according to claim 3, characterized in that: A notch is formed by cutting away a portion of the inner end of the clamping claw on the positioning chuck (7). The lower surface of the notch of the clamping claw on the positioning chuck (7) is above the upper surface of the rotating disk (8), and the two do not contact each other.

5. The assembly tool for a pressure sensor according to claim 1, wherein: Two symmetrically arranged threaded holes are formed through the left and right sides of the movable plate (4), and the threaded holes are threadedly connected to the movable screw rod (5).

6. The assembly tool for a pressure sensor according to claim 1, wherein: The right ends of the two movable screw rods (5) pass through the fixed plate (12) on the right side and are placed on the right side thereof, and the right ends of the movable screw rods (5) are installed with driven pulleys (51); The mobile motor (6) is mounted on the fixed plate (12) on the right side via a bracket, and a driving pulley (61) is mounted on the output shaft of the mobile motor (6), and the driving pulley (61) is connected to the driven pulley (51) via a toothed belt.

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