A Coriolis mass flowmeter processing and positioning device

Abstract

The present invention provides a Coriolis mass flowmeter processing and positioning device, which belongs to the technical field of welding and includes a workbench, multiple positioning units, and multiple fixing units. The workbench includes a bottom plate and a top plate fixed to the top surface of the bottom plate, the top plate is penetrated by multiple through holes and grouped into a row, and the through holes are arranged in multiple rows along a first direction; multiple positioning units correspond to the through holes one by one, the positioning units include a fixed rod fixed to the bottom plate, a positioning rod slidably connected to the inner wall of the through hole, and an elastic member arranged between the fixed rod and the positioning rod, the fixed rod and the positioning rod are both arranged vertically, the positioning rod is also slidably connected to the fixed rod, the positioning rod slides in the up and down direction, and the elastic member has a pre-tightening force that causes the positioning rod to move upward; multiple fixing units are arranged in a one-to-one correspondence in the through hole for fixing the positioning rod. The present invention improves the scope of application.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a Coriolis mass flowmeter processing and positioning device. Background Art

[0002] A Coriolis mass flowmeter is a device that directly measures mass flow by utilizing the principle that when a fluid flows in a vibrating pipe, a Coriolis force is generated that is proportional to the mass flow rate. Coriolis mass flowmeters enable direct measurement of mass flow, are highly accurate, and can measure multiple media and process parameters. They are widely used in the petrochemical, pharmaceutical, and food industries.

[0003] In the production process of Coriolis mass flowmeters, when the cut materials need to be welded, welding is divided into two steps. First, spot welding is required to fix the relative position of the materials, and then complete welding is performed.

[0004] Before spot welding, the cut materials need to be fixed in position. Since Coriolis mass flowmeters come in various shapes and specifications, different fixing components are needed to fix the welded parts during spot welding. However, most current processing positioning devices can only adapt to one type of Coriolis mass flowmeter, resulting in low adaptability. Summary of the Invention

[0005] An embodiment of the present invention provides a Coriolis mass flowmeter machining positioning device, aiming to solve the technical problem of low adaptability of the machining positioning device.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a Coriolis mass flowmeter processing and positioning device, comprising:

[0007] A workbench comprises a bottom plate and a top plate fixed to the top surface of the bottom plate, wherein the top plate is provided with a plurality of through holes arranged in a row, and the through holes are arranged in a plurality of rows along a first direction;

[0008] a plurality of positioning units corresponding one to the through holes, the positioning units comprising a fixing rod fixed to the bottom plate, a positioning rod slidably connected to the inner wall of the through hole, and an elastic member disposed between the fixing rod and the positioning rod, the fixing rod and the positioning rod being vertically arranged, the positioning rod being further slidably connected to the fixing rod, the positioning rod sliding in an up-down direction, and the elastic member having a pre-tightening force causing the positioning rod to move upward; and

[0009] A plurality of fixing units are disposed in the through holes in a one-to-one correspondence and are used to fix the positioning rods.

[0010] In a possible implementation, a compensation unit is provided on the outer periphery of the positioning rod, and the compensation unit includes:

[0011] A sliding sleeve, arranged on the outer periphery of the positioning rod;

[0012] a compensation airbag, disposed on the outer periphery of the sliding sleeve; and

[0013] The compensating pneumatic component is connected to the compensating airbag and is used for blowing or inhaling air into the compensating airbag.

[0014] In a possible implementation, the top surface of the positioning rod is inwardly recessed to form a limiting cavity and is provided with a transmission cavity connected to the limiting cavity; the sliding sleeve includes a movable sleeve slidably mounted on the positioning rod and a rotating sleeve rotatably connected to the outer periphery of the movable sleeve; and the compensating airbag is provided on the rotating sleeve;

[0015] The compensation unit further includes:

[0016] A threaded rod, rotatably connected to the inner wall of the limiting cavity, wherein the threaded rod has a vertical direction as a rotation axis; and

[0017] The transmission member is screwed to the threaded rod, and the transmission member is also slidably arranged on the inner wall of the transmission cavity. The transmission member slides in the up and down directions, and the transmission member is also fixedly connected to the movable sleeve.

[0018] In a possible implementation, the compensation unit further includes a camera, and the camera is communicatively connected to the compensation pneumatic component;

[0019] Wherein, after the camera captures the contact between the compensation airbag and the workpiece to be welded, the compensation pneumatic part stops operating.

[0020] In a possible implementation, a displacement unit is provided on one side of the top plate, and the displacement unit includes:

[0021] A displacement plate is rotatably connected to the top plate, and the displacement plate has a horizontal direction as a rotation axis;

[0022] a shifting member connected to the shifting plate and configured to drive the shifting plate to rotate; and

[0023] The connecting mechanism is provided on the displacement plate and is used to fix the workpiece to be welded to the displacement plate.

[0024] In a possible implementation, the displacement unit further includes:

[0025] a rotating plate rotatably connected to the displacement plate, wherein the rotation axis of the rotating plate is perpendicular to the plate surface of the displacement plate; and

[0026] The rotating member is connected to the rotating plate and is used to drive the rotating plate to rotate.

[0027] In a possible implementation, the connecting mechanism includes:

[0028] a first connecting plate, slidably mounted on the rotating plate, wherein the sliding direction of the first connecting plate is perpendicular to the rotation axis of the displacement plate, and the first connecting plate is provided with a first connecting hole for inserting an end portion of a workpiece to be welded;

[0029] A second connecting plate, fixedly connected to the rotating plate, wherein the second connecting plate is provided with a second connecting hole for a workpiece to be welded to pass through; and

[0030] The deformable member is provided between the rotating plate and the first connecting plate, and has a pre-tightening force that causes the first connecting plate to move and be misaligned with the second connecting plate.

[0031] In a possible implementation, flexible pads are provided on inner walls of the first connection hole and the second connection hole.

[0032] In a possible implementation, the fixing unit includes:

[0033] a limiting airbag, disposed in the through hole and having a limiting hole for the positioning rod to pass through; and

[0034] The position-limiting pneumatic component is communicated with the position-limiting airbag and is used for inflating or sucking air into the position-limiting airbag.

[0035] In a possible implementation, an anti-slip pad is provided on the inner wall of the limiting hole.

[0036] Compared to existing technologies, the Coriolis mass flowmeter machining and positioning device provided by the present invention utilizes a method in which the positioning rods in contact with the welded parts are pressed downward after the welded parts are assembled into the desired shape. A fixing unit then maintains the downwardly displaced positioning rods in position, thereby forming a recessed area with the same shape as the welded parts. The welded parts are then secured within the recessed area, facilitating spot welding. This device can accommodate various welded parts by pressing the positioning rods in different positions, thus improving the applicability of the machining and positioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural diagram of a Coriolis mass flowmeter processing and positioning device according to an embodiment of the present invention;

[0038] Figure 2 This is a structural schematic diagram of a displacement plate in a horizontal state used in an embodiment of the present invention;

[0039] Figure 3 A cross-sectional view of a positioning rod used in an embodiment of the present invention;

[0040] Figure 4 for Figure 3 A partial enlarged schematic diagram of part A;

[0041] Figure 5 A schematic structural diagram of a fixing unit used in an embodiment of the present invention;

[0042] Figure 6 A partial cross-sectional view of the first connecting hole and the second connecting hole used in an embodiment of the present invention.

[0043] Description of reference numerals:

[0044] 10. Workbench; 101. Top plate; 1011. Through hole; 102. Bottom plate;

[0045] 20. Positioning unit; 201. Positioning rod; 2011. Limiting cavity; 2012. Transmission cavity; 2013. Guide rod; 202. Fixing rod; 203. Elastic member;

[0046] 30. Fixing unit; 301. Position limiting airbag; 3011. Position limiting hole;

[0047] 40. Compensation unit; 401. Moving sleeve; 402. Rotating sleeve; 403. Compensation airbag; 404. Threaded rod; 405. Transmission member;

[0048] 50. Displacement unit; 501. Displacement plate; 502. Displacement member; 503. First connecting plate; 5031. First connecting hole; 504. Second connecting plate; 5041. Second connecting hole; 505. Deformation member; 506. Rotation plate;

[0049] 60. Parts to be welded. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0051] Please also refer to Figures 1 to 6, the present invention is described in detail. A Coriolis mass flowmeter processing and positioning device includes a workbench 10, a plurality of positioning units 20, and a plurality of fixing units 30. The workbench 10 includes a bottom plate 102 and a top plate 101 fixed to the top surface of the bottom plate 102. The top plate 101 is provided with a plurality of through holes 1011 arranged in a row. The through holes 1011 are arranged in multiple rows along a first direction. The plurality of positioning units 20 correspond to the through holes 1011 one by one. The positioning units 20 include a fixing rod 202 fixed to the bottom plate 102, A positioning rod 201 is slidably connected to the inner wall of the through hole 1011, and an elastic piece 203 is arranged between the fixed rod 202 and the positioning rod 201. The fixed rod 202 and the positioning rod 201 are both vertically arranged. The positioning rod 201 is also slidably connected to the fixed rod 202. The positioning rod 201 slides in the up and down directions. The elastic piece 203 has a pre-tightening force that causes the positioning rod 201 to move upward; and a plurality of fixing units 30 are arranged one by one in the through hole 1011 for fixing the positioning rod 201.

[0052] Specifically, the elastic member 203 is a spring.

[0053] Compared to the prior art, the Coriolis mass flowmeter machining and positioning device provided by the present invention utilizes a method in which the workpiece 60 to be welded is assembled into the desired shape. The positioning rod 201 in contact with the workpiece 60 is pressed downward, and the downwardly moving positioning rod 201 is held in position by the fixing unit 30. This allows the remaining positioning rod 201 to form a recessed area with the same shape as the workpiece 60 to be welded. The workpiece 60 to be welded is fixed within the recessed area, facilitating spot welding by the operator. The present invention allows the positioning rod 201 to be pressed in different positions to accommodate various shapes of the workpiece 60 to be welded, thereby improving the applicability of the machining and positioning device.

[0054] In some embodiments, see Figure 3 A compensation unit 40 is provided on the outer periphery of the positioning rod 201, and the compensation unit 40 includes a sliding sleeve, a compensation airbag 403 and a compensation pneumatic part; the sliding sleeve is provided on the outer periphery of the positioning rod 201; the compensation airbag 403 is provided on the outer periphery of the sliding sleeve; the compensation pneumatic part is connected to the compensation airbag 403, and is used to blow or inhale air into the compensation airbag 403.

[0055] It should be noted that the compensation airbag 403 is made of a high-temperature resistant flexible material.

[0056] Specifically, the compensating pneumatic component is an air pump.

[0057] After the recessed area is formed, the compensating pneumatic part is started. After the compensating pneumatic part is started, air is inflated into the compensating airbag 403. The compensating airbag 403 is inflated and pressed against the workpiece 60 to be welded. The compensating airbag 403 can fix the workpieces 60 to be welded with different diameters.

[0058] In some embodiments, see Figure 3 and Figure 4 The top surface of the positioning rod 201 is recessed inward to form a limiting cavity 2011 and a transmission cavity 2012 connected to the limiting cavity 2011. The sliding sleeve includes a movable sleeve 401 slidably arranged on the positioning rod 201 and a rotating sleeve 402 rotatably connected to the outer periphery of the movable sleeve 401, and the compensation airbag 403 is arranged on the rotating sleeve 402; the compensation unit 40 also includes a threaded rod 404 and a transmission member 405, the threaded rod 404 is rotatably connected to the inner wall of the limiting cavity 2011, and the threaded rod 404 is a rotation axis in the up and down direction; the transmission member 405 is screwed to the threaded rod 404, and the transmission member 405 is also slidably arranged on the inner wall of the transmission cavity 2012, the transmission member 405 slides in the up and down directions, and the transmission member 405 is also fixed to the movable sleeve 401.

[0059] Specifically, a guide rod 2013 is fixedly connected to the inner wall of the transmission cavity 2012. The guide rod 2013 is arranged in the up and down directions. The guide rod 2013 passes through the transmission rod and the two are slidably adapted.

[0060] The staff can change the orientation of the compensation airbag 403 by rotating the rotating sleeve 402. At the same time, the staff can also rotate the threaded rod 404 to make the transmission part 405 drive the sliding sleeve to move up and down, thereby driving the compensation airbag 403 to move up and down, thereby changing the contact point between the compensation airbag 403 and the workpiece to be welded 60, so that the contact position between the compensation airbag 403 and the workpiece to be welded 60 is the optimal force point, thereby ensuring the stability of the workpiece to be welded 60.

[0061] In some embodiments, the compensation unit 40 further includes a camera that is in communication with the compensation pneumatic component. When the camera detects that the compensation airbag 403 is in contact with the workpiece 60 to be welded, the compensation pneumatic component stops operating.

[0062] After the staff adjusted the orientation of the compensating airbag 403, the compensating pneumatic parts started to work, and the camera continuously monitored the relative position of the compensating airbag 403 and the workpiece 60 to be welded. When the camera captured that the compensating airbag 403 was tightly pressed against the workpiece 60 to be welded, the camera sent a stop command to the compensating pneumatic parts, and the compensating pneumatic parts stopped blowing after receiving the stop command; after the spot welding was completed, the compensating pneumatic parts began to inhale, and the compensating airbag 403 deflated, causing the compensating airbag 403 to separate from the workpiece 60 to be welded.

[0063] In some embodiments, see Figure 1 and Figure 2A displacement unit 50 is provided on one side of the top plate 101. The displacement unit 50 includes a displacement plate 501, a displacement member 502 and a connecting mechanism. The displacement plate 501 is rotatably connected to the top plate 101, and the displacement plate 501 uses the horizontal direction as the rotation axis; the displacement member 502 is connected to the displacement plate 501, and is used to drive the displacement plate 501 to rotate; the connecting mechanism is provided on the displacement plate 501, and is used to fix the workpiece 60 to be welded to the displacement plate 501.

[0064] Specifically, the position changing member 502 is a motor, and the output shaft of the position changing member 502 is directly fixed to the position changing plate 501 .

[0065] When the staff places the workpiece to be welded on the top plate 101, the free end of the workpiece to be welded 60 needs to be fixed to the displacement plate 501 through a connecting structure. After the spot welding is completed, the displacement member 502 is started, driving the displacement plate 501 to rotate from a vertical state to a horizontal state. As a result, the workpiece to be welded 60 that has been spot welded is separated from the recessed area, so that the workpiece to be welded 60 is completely exposed, which is convenient for the staff to perform complete welding work on the workpiece to be welded 60.

[0066] In some embodiments, see Figure 1 and Figure 2 The displacement unit 50 also includes a rotating plate 506 and a rotating member. The rotating plate 506 is rotatably connected to the displacement plate 501, and the rotation axis of the rotating plate 506 is perpendicular to the plate surface of the displacement plate 501; the rotating member is connected to the rotating plate 506 and is used to drive the rotating plate 506 to rotate.

[0067] Specifically, the rotating member is a motor, and the output shaft of the rotating member passes through the displacement plate 501 and is directly fixed to the rotating plate 506 .

[0068] When the displacement plate 501 is in a horizontal state, the rotating part starts to drive the rotating plate 506 to rotate, thereby driving the workpiece 60 to be welded to rotate. By changing the direction of the output shaft of the rotating part, the workpiece 60 to be welded can be rotated counterclockwise and clockwise, thereby facilitating the staff to complete the welding work.

[0069] In some embodiments, see Figure 2 and Figure 6 The connecting mechanism includes a first connecting plate 503, a second connecting plate 504 and a deformable member 505. The first connecting plate 503 is slidably arranged on the rotating plate 506. The sliding direction of the first connecting plate 503 is perpendicular to the rotation axis of the displacement plate 501. The first connecting plate 503 is provided with a first connecting hole 5031 for inserting the end of the workpiece 60 to be welded; the second connecting plate 504 is fixedly connected to the rotating plate 506. The second connecting plate 504 is penetrated by a second connecting hole 5041 for passing the workpiece 60 to be welded; the deformable member 505 is arranged between the rotating plate 506 and the first connecting plate 503, and has a pre-tightening force that causes the first connecting plate 503 to move and be misaligned with the second connecting plate 504.

[0070] When the displacement plate 501 is in a vertical state, the staff first aligns the first connecting plate 503 and the second connecting plate 504 so that the first connecting hole 5031 and the second connecting hole 5041 are aligned one by one. At this time, the deformable member 505 is in a compressed state, and then the staff needs to insert the free end of the workpiece 60 to be welded into the corresponding first connecting hole 5031 and the second connecting hole 5041. After the workpiece 60 to be welded is placed, the deformable member 505 restores its deformation and drives the first connecting plate 503 to move, so that the first connecting plate 503 and the second connecting plate 504 clamp the free end of the workpiece 60 to be welded.

[0071] In some embodiments, flexible pads are provided on the inner walls of the first connection hole 5031 and the second connection hole 5041 .

[0072] The flexible pad can prevent the workpiece 60 from being damaged during the process of the first connecting plate 503 and the second connecting plate 504 clamping the workpiece 60 .

[0073] In some embodiments, see 2 and Figure 5 The fixing unit 30 includes a limiting airbag 301 and a limiting pneumatic component. The limiting airbag 301 is arranged in the through hole 1011 and has a limiting hole 3011 for the positioning rod 201 to pass through; the limiting pneumatic component is connected to the limiting airbag 301 and is used to inflate or inhale air into the limiting airbag 301.

[0074] Specifically, the limiting pneumatic component is an air pump.

[0075] After the positioning rod 201 moves downward to the preset position, the limiting pneumatic component starts to blow air into the limiting airbag 301, and the limiting airbag 301 expands until it is close to the positioning rod 201, so that the position of the positioning rod 201 is fixed; when it is necessary to replace other models of welded parts 60, the limiting pneumatic component starts to suck out the gas in the limiting airbag 301, thereby deflating the limiting airbag 301, and the elastic component 203 releases the elastic force to drive the positioning rod 201 to return to its original position upward.

[0076] In some embodiments, an anti-slip pad is provided on the inner wall of the limiting hole 3011.

[0077] The anti-slip pad is arranged on the limiting airbag 301 . When the limiting airbag 301 expands and presses against the positioning rod 201 , the friction between the limiting airbag 301 and the positioning rod 201 is increased, thereby preventing the positioning rod 201 from rebounding.

[0078] 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 and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A Coriolis mass flowmeter processing and positioning device, characterized in that: include: A workbench comprises a bottom plate and a top plate fixed to the top surface of the bottom plate, wherein the top plate is provided with a plurality of through holes arranged in a row, and the through holes are arranged in a plurality of rows along a first direction; a plurality of positioning units corresponding to the through holes one by one, the positioning units comprising a fixing rod fixed to the bottom plate, a positioning rod slidably connected to the inner wall of the through hole, and an elastic member provided between the fixing rod and the positioning rod, the fixing rod and the positioning rod being both vertically arranged, the positioning rod being further slidably connected to the fixing rod, the positioning rod sliding in an up-down direction, and the elastic member having a pre-tightening force causing the positioning rod to move upward; as well as A plurality of fixing units are provided in the through holes in a one-to-one correspondence, and are used to fix the positioning rods; A compensation unit is provided on the periphery of the positioning rod, and the compensation unit includes: A sliding sleeve, arranged on the outer periphery of the positioning rod; a compensation airbag, disposed on the outer periphery of the sliding sleeve; and a compensating pneumatic component, connected to the compensating airbag, for blowing air into the compensating airbag and sucking out the gas in the compensating airbag; The top surface of the positioning rod is inwardly recessed to form a limiting cavity and is provided with a transmission cavity connected to the limiting cavity. The sliding sleeve includes a moving sleeve slidably mounted on the positioning rod and a rotating sleeve rotatably connected to the outer periphery of the moving sleeve. The compensating airbag is provided on the rotating sleeve. The compensation unit further includes: A threaded rod, rotatably connected to the inner wall of the limiting cavity, wherein the threaded rod has a vertical direction as a rotation axis; and The transmission member is screwed to the threaded rod, and the transmission member is also slidably arranged on the inner wall of the transmission cavity. The transmission member slides in the up and down directions, and the transmission member is also fixedly connected to the movable sleeve.

2. The Coriolis mass flowmeter machining and positioning device according to claim 1, wherein: The compensation unit further includes a camera, which is communicatively connected to the compensation pneumatic component; Wherein, after the camera captures the contact between the compensation airbag and the workpiece to be welded, the compensation pneumatic part stops operating.

3. The Coriolis mass flowmeter machining and positioning device according to claim 1, wherein: A displacement unit is provided on one side of the top plate, and the displacement unit includes: A displacement plate is rotatably connected to the top plate, and the displacement plate has a horizontal direction as a rotation axis; a shifting member connected to the shifting plate and configured to drive the shifting plate to rotate; and The connecting mechanism is provided on the displacement plate and is used to fix the workpiece to be welded to the displacement plate.

4. The Coriolis mass flowmeter machining and positioning device according to claim 3, characterized in that: The displacement unit further includes: a rotating plate rotatably connected to the displacement plate, wherein the rotation axis of the rotating plate is perpendicular to the plate surface of the displacement plate; and The rotating member is connected to the rotating plate and is used to drive the rotating plate to rotate.

5. The Coriolis mass flowmeter machining and positioning device according to claim 4, characterized in that: The connecting mechanism comprises: a first connecting plate, slidably mounted on the rotating plate, wherein the sliding direction of the first connecting plate is perpendicular to the rotation axis of the displacement plate, and the first connecting plate is provided with a first connecting hole for inserting an end portion of a workpiece to be welded; A second connecting plate, fixedly connected to the rotating plate, wherein the second connecting plate is provided with a second connecting hole for a workpiece to be welded to pass through; and The deformable member is provided between the rotating plate and the first connecting plate, and has a pre-tightening force that causes the first connecting plate to move and be misaligned with the second connecting plate.

6. The Coriolis mass flowmeter machining and positioning device according to claim 5, characterized in that: The inner walls of the first connecting hole and the second connecting hole are both provided with flexible pads.

7. The Coriolis mass flowmeter machining and positioning device according to claim 1, wherein: The fixing unit includes: a limiting airbag, disposed in the through hole and having a limiting hole for the positioning rod to pass through; and The position-limiting pneumatic component is communicated with the position-limiting airbag and is used for inflating the position-limiting airbag and sucking out the gas in the position-limiting airbag.

8. The Coriolis mass flowmeter machining and positioning device according to claim 7, characterized in that: An anti-slip pad is provided on the inner wall of the limiting hole.

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