Pipe pressing device for spring pipe of pressure gauge

Abstract

The utility model discloses a pressure gauge bourdon tube pressing device, which belongs to the technical field of round tube pressing, and comprises a base, a support block, a pressing block, a limiting structure and a driving assembly, the base comprises two support plates which are oppositely arranged, the support block is fixedly arranged in front of the two support plates, and the pressing block is arranged on the base. The pressing block is arranged between the two supporting plates in a sliding mode under driving of the driving assembly and located between the supporting blocks, a pipe pressing space used for containing a to-be-pressed circular steel pipe is formed between the pressing block and the supporting blocks, the limiting structure comprises a movable block and a stud, and the stud is rotatably connected with the supporting blocks. The movable block is arranged on the supporting block in a sliding mode in the longitudinal direction and is in threaded connection with the stud, a limiting column is arranged on the movable block, and the upper end of the limiting column penetrates through the upper surface of the supporting block in a sliding mode and abuts against the lower surface of the pressing block. According to the pressure gauge spring tube pressing device, the descending height of the pressing block can be limited according to machining requirements, and pressed products are uniform in height, good in quality, low in machining difficulty and high in machining efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure gauge spring tube processing equipment, in particular to a pressure gauge spring tube pressing device. Background Art

[0002] The pressure gauge spring tube is a tubular spring structure. As the core component of the pressure gauge overpressure protection device, its performance directly affects the accuracy and reliability of the pressure gauge. The processing steps of the spring tube generally include material preparation, flattening, bending and heat treatment. In the flattening step, the round steel tube is placed on a tube pressing machine, and under pressure, the steel tube is pressed into a tubular structure with a waist-round cross-section. For example, a Chinese patent document with publication number CN113369384A discloses a manufacturing process for a diaphragm pressure gauge spring tube with an overpressure protection device, which discloses a positioning tool for pressing the spring tube, including symmetrically arranged guide blocks, a pressure-guiding block movably installed in the guide block, and a clamping block arranged on the pressure-guiding block. There are at least two clamping blocks, which are respectively located at the upper and lower ends of the steel pipe profile, wherein the clamping block away from the pressure-guiding block is fixedly connected to the guide block, and the end of the clamping block close to the pressure-guiding block is movably installed in the inner cavity of the guide block. A symmetrical pressing block is arranged at the center position of the clamping block, and a pressing groove corresponding to the steel pipe profile is opened in the pressing block. When the two pressing blocks are closed, the pressing groove forms a cavity, and the steel pipe profile is inserted into the cavity. When the pressing block is pressed downward, the cavity shrinks, and the cavity wall presses the steel pipe profile. When the above-mentioned pipe pressing and positioning tooling is actually used, it is necessary to manually control the descending height of the pressing block to ensure that the waist-round steel pipe after pressing meets the processing requirements. Due to the lack of a limiting structure, the thickness of the pressed steel pipe is different, the product consistency is poor, and the quality needs to be improved. In addition, the pressing height needs to be manually controlled each time pressing, which makes the processing difficult and the processing efficiency is low. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in the prior art, the consistency of round steel pipes after pressing is poor, the product quality is not high, the processing is difficult and the efficiency is low. Based on this, the utility model provides a pressure gauge spring pipe pressing device with good product consistency, high quality and easy processing.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a pressure gauge spring tube pressing device, including a base, a support block, a pressing block, a limiting structure and a driving assembly, the base including two relatively arranged support plates, the support block is fixedly arranged in front of the two support plates, the pressing block is slidably arranged between the two support plates and between the support blocks under the drive of the driving assembly, a pressing space for placing a circular steel tube to be pressed is formed between the pressing block and the support block, the limiting structure includes a movable block and a stud, the stud is rotatably connected to the support block, the movable block is slidably arranged on the support block along the longitudinal direction and is threadedly connected to the stud, a limiting column is provided on the movable block, the upper end of the limiting column can slidably pass through the upper surface of the support block and abut against the lower surface of the pressing block.

[0005] Furthermore, a receiving groove is formed on the lower surface of the support block in an upward depression, the movable block is slidably arranged in the receiving groove along the longitudinal direction, a through groove is opened on the top wall of the receiving groove, and the limiting column is slidably connected to the through groove.

[0006] Furthermore, there are two limit posts disposed on opposite sides of the upper surface of the movable block, there are two through slots, and one limit post is correspondingly slidably connected to one through slot.

[0007] Furthermore, a bearing is provided between the stud and the support block.

[0008] Furthermore, a nut is fixedly provided at the lower end of the stud, and an operating portion is provided on the nut.

[0009] Furthermore, guide grooves are provided on opposite sides of the support plate in the longitudinal direction, guide blocks are protrudingly provided on opposite sides of the pressing block, and the guide blocks are slidably connected to the guide grooves.

[0010] Furthermore, a fixed plate is fixedly connected between the two support plates and located directly above the pressing block. The driving assembly includes a screw rod and a rotating wheel. The screw rod is rotatably mounted on the fixed plate along the longitudinal direction. A threaded hole is formed on the upper surface of the pressing block in a downward depression. The lower end of the screw rod is threadedly connected to the threaded hole, and the rotating wheel is fixedly mounted on the upper end of the screw rod.

[0011] Furthermore, first bolts are installed on both opposite sides of the support plate, and the support block is fixedly connected to the support plate through the first bolts.

[0012] Furthermore, second bolts are installed on two opposite sides of the support plate, and the fixing plate is fixedly connected to the support plate through the second bolts.

[0013] The beneficial effects of the utility model are as follows: for the pressure gauge spring tube pressing device of the utility model, the user can limit the descending height of the pressing block according to the processing requirements, so that the height of the pressed product is unified and the consistency is good, the pressing quality is improved, and the downward moving distance of the pressing block does not need to be specially controlled by the user, the processing difficulty is reduced, the labor is greatly saved, the processing efficiency is high, and it is beneficial for the enterprise to improve the economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a three-dimensional diagram of a spring tube pressing device for a pressure gauge of the utility model;

[0016] Figure 2 yes Figure 1 A three-dimensional view of the spring tube pressing device of the pressure gauge shown in another perspective;

[0017] Figure 3 yes Figure 1 The front view of the spring tube pressing device of the pressure gauge shown;

[0018] Figure 4 yes Figure 1 A top view of the spring tube pressing device of the pressure gauge shown;

[0019] Figure 5 yes Figure 4 The cross-sectional view of the spring tube pressing device of the pressure gauge along AA is shown.

[0020] In the figure: 1, base, 11, support plate, 111, first bolt, 112, guide groove, 113, second bolt, 2, support block, 20, tube pressing space, 21, accommodating groove, 22, through groove, 3, pressing block, 31, guide block, 32, threaded hole, 4, limiting structure, 41, movable block, 411, limiting column, 42, stud, 421, bearing, 422, nut, 423, operating part, 5, driving assembly, 51, screw rod, 52, rotating wheel, 6, fixing plate, 10, round steel pipe. DETAILED DESCRIPTION

[0021] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0022] See also Figure 1-Figure 5The utility model discloses a pressure gauge spring tube pressing device, which is used for pressing a circular steel tube 10, and includes a base 1, a support block 2, a pressing block 3, a limiting structure 4 and a driving assembly 5. The support block 2 is fixedly connected to the base 1, and the pressing block 3 is slidably installed on the base 1 along the longitudinal direction, and the pressing block 3 is located directly above the support block 2. The limiting structure 4 is installed on the support block 2, and the driving assembly 5 is used to drive the pressing block 3 to move along the longitudinal direction.

[0023] When in use, the space between the support block 2 and the pressing block 3 constitutes a pipe pressing space 20. The circular steel pipe to be pressed is placed in the pipe pressing space 20. The driving assembly 5 is used to prompt the pressing block 3 to move downward and then press on the circular steel pipe 10. Finally, under the action of the support block 2 and the pressing block 3, the circular steel pipe 10 is pressed into a waist-shaped steel pipe.

[0024] The base 1 serves as a supporting component of the pressure gauge spring tube pressing device of the utility model. When in use, the base 1 is fixed on a horizontal surface. The base 1 includes two opposite support plates 11, and the two support plates 11 are arranged in parallel and perpendicular to the horizontal surface. The support block 2 is a rectangular block structure, one side of the support block 2 is fixedly connected to one of the support plates 11, and the other side of the support block 2 is fixedly connected to the other support plate 11, so that the support block 2 is clamped and fixed between the two support plates 11. In this embodiment, first bolts 111 are installed on both opposite sides of the support plate 11, and the support block 2 is fixedly connected to the support plate 11 by the first bolts 111.

[0025] As a preferred embodiment, guide grooves 112 are provided on opposite sides of the support plate 11 in the longitudinal direction, the pressing block 3 is a rectangular block structure, and guide blocks 31 are protruding on opposite sides of the pressing block 3. The guide blocks 31 are slidably connected to the guide grooves 112. When in use, the support plate 11 slides along the guide grooves 112, so that the support plate 11 moves closer to or away from the pressing block 3 along the guide grooves 112.

[0026] As a preferred embodiment, a receiving groove 21 is formed on the lower surface of the support block 2 in an upward depression, and through grooves 22 are longitudinally provided on opposite sides of the groove top wall of the receiving groove 21, and the through groove 22 passes through the upper surface of the support block 2, and the limiting structure 4 includes a movable block 41 and a stud 42, and the movable block 41 is slidably arranged in the receiving groove 21 along the longitudinal direction, and limiting columns 411 are convexly provided on opposite sides of the upper surface of the movable block 41, and the upper surfaces of the two limiting columns 411 are in the same horizontal plane, wherein one limiting column 411 corresponds to one through groove 22, and the limiting column 411 is slidably connected to the through groove 22, and the stud 42 is rotatably installed on the support block 2, and the stud 42 passes through the movable block 41, and the stud 42 is threadedly connected to the movable block 41.

[0027] During use, since the accommodating groove 21 limits the rotation of the movable block 41, when the stud 42 is rotated, the movable block 41 can be urged to move longitudinally in the accommodating groove 21. At this time, the limiting column 411 is also moved longitudinally at the same time under the drive of the movable block 41, and then passes through the upper surface of the support block 2. By rotating the stud 42 forward and backward, the height of the limiting column 411 passing through the outside of the support block 2 can be controlled, thereby controlling the target height of the steel pipe. When the user controls the pressing block 3 to move downward through the driving component 5 and then presses the circular steel pipe 10 until the lower surface of the pressing block 3 abuts against the upper end of the limiting column 411, the pressing block 3 moves into place, and the circular steel pipe 10 is squeezed into place. By setting two limiting columns 411, the pressing block 3 is limited at the same time, and the reliability of use is higher.

[0028] See also Figure 5 As a preferred embodiment, a bearing 421 is provided between the stud 42 and the support block 2, which is conducive to the rotation of the stud 42 and also supports the stud 42, thereby ensuring the installation stability of the stud 42.

[0029] Also, please refer again to Figure 2 , a nut 422 is fixedly provided at the lower end of the stud 42, and an operating portion 423 is provided on the nut 422, and the user can operate the nut 422 to rotate through the operating portion 423, thereby driving the stud 42 to rotate. It can be understood that the operating portion 423 can be a slot or a cross slot, and the user can rotate the operating portion 423 through a tool such as a screwdriver. Of course, in other embodiments, the operating portion 423 can also be omitted. In this case, the nut 422 can be set to a regular hexagon, so that the user can directly rotate the nut 422 from the side of the stud 42 through a wrench.

[0030] In this embodiment, by setting the stud 42, the rotation of the stud 42 is converted into the movement of the movable block 41, thereby realizing the function of micro-adjustment, which is beneficial for the user to accurately control the height of the steel pipe. At the same time, the movable block 41 and the stud 42 are threadedly connected, and have a self-locking function, which can effectively prevent the movable block 41 from easily moving downward after being compressed, and has high reliability in use.

[0031] As a preferred embodiment, a fixed plate 6 is fixedly connected between the two support plates 11 and located directly above the pressing block 3. The fixed plate 6 is a rectangular block structure. Second bolts 113 are also installed on the opposite sides of the support plate 11. The fixed plate 6 is fixedly connected to the support plate 11 through the second bolts 113. The driving assembly 5 includes a screw rod 51 and a rotating wheel 52. The screw rod 51 is rotatably installed on the fixing plate 6 along the longitudinal direction. The screw rod 51 passes through the fixing plate 6. The screw rod 51 and the fixing plate 6 can be connected through a bearing (not shown in the figure). A threaded hole 32 is formed on the upper surface of the pressing block 3, which is concave downward. The lower end of the screw rod 51 is threadedly connected to the threaded hole 32, and the rotating wheel 52 is fixedly installed on the upper end of the screw rod 51. When in use, due to the cooperation between the guide groove 112 and the guide block 32, the rotation of the pressing block 3 relative to the support plate 11 is limited. Therefore, when the user rotates the screw rod 51 through the rotating wheel 52, the pressing block 3 can be urged to move along the guide groove 112 to move closer to or away from the support block 2. It can be understood that in other embodiments, the driving assembly 5 drives the pressing block 3 to move, including but not limited to a screw drive, and can also be a cylinder drive, etc., which is not limited here.

[0032] The use process of the pressure gauge spring tube pressing device of the utility model is as follows: according to the processing needs, the stud 42 on the limiting structure 4 is rotated to move the limiting column 411 on the movable block 41 into position, and then the round steel tube 10 to be pressed is placed in the tube pressing space 20, then, the driving component 5 is operated to move the pressing block 3 downward and gradually flatten the round steel tube 10, when the lower surface of the pressing block 3 is against the upper end of the limiting column 411, the pressing block 3 moves into position, at this time, the round steel tube 10 is also squeezed into position at the same time, finally, the driving component 5 is operated to move the pressing block 3 upward to separate it from the round steel tube 10, at this time, the pressed and formed round steel tube 10 can be taken out from the tube pressing space 20. Compared with the prior art, the above embodiment can limit the descending height of the pressing block 3 according to the processing requirements, so that the height of the pressed product is unified and the consistency is good, the pressing quality is improved, and the downward moving distance of the pressing block 3 does not need to be specially controlled by the user, the processing difficulty is reduced, the labor is greatly saved, the processing efficiency is high, and it is beneficial for enterprises to improve economic benefits.

[0033] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A pressure gauge spring tube pressing device, characterized in that: The invention comprises a base, a support block, a pressing block, a limiting structure and a driving assembly, wherein the base comprises two supporting plates arranged opposite to each other, the support block is fixedly arranged in front of the two supporting plates, the pressing block is slidably arranged between the two supporting plates and between the supporting blocks under the drive of the driving assembly, a pressing pipe space for placing the circular steel pipe to be pressed is formed between the pressing block and the support block, the limiting structure comprises a movable block and a stud, the stud is rotatably connected to the support block, the movable block is slidably arranged on the support block in the longitudinal direction and is threadedly connected to the stud, a limiting column is provided on the movable block, and the upper end of the limiting column can slidably pass through the upper surface of the support block and abut against the lower surface of the pressing block.

2. The pressure gauge spring tube pressing device according to claim 1, characterized in that: The lower surface of the support block is recessed upward to form a receiving groove, the movable block is slidably arranged in the receiving groove along the longitudinal direction, a through groove is opened on the top wall of the receiving groove, and the limiting column is slidably connected to the through groove.

3. The pressure gauge spring tube pressing device according to claim 2, characterized in that: There are two limit posts arranged on opposite sides of the upper surface of the movable block, there are two through slots, and one limit post is correspondingly slidably connected to one through slot.

4. The pressure gauge spring tube pressing device according to claim 2, characterized in that: A bearing is arranged between the stud and the support block.

5. The pressure gauge spring tube pressing device according to claim 4, characterized in that: A nut is fixedly arranged at the lower end of the stud, and an operating part is arranged on the nut.

6. The pressure gauge spring tube pressing device according to claim 1, characterized in that: The support plate is provided with guide grooves on two opposite sides in the longitudinal direction, and the pressure block is provided with guide blocks on two opposite sides. The guide blocks are slidably connected to the guide grooves.

7. The pressure gauge spring tube pressing device according to claim 6, characterized in that: A fixed plate is fixedly connected between the two support plates and located directly above the pressure block. The driving assembly includes a screw rod and a rotating wheel. The screw rod is rotatably mounted on the fixed plate along the longitudinal direction. A threaded hole is formed on the upper surface of the pressure block in a downward depression. The lower end of the screw rod is threadedly connected to the threaded hole, and the rotating wheel is fixedly mounted on the upper end of the screw rod.

8. The pressure gauge spring tube pressing device according to claim 1, characterized in that: First bolts are installed on opposite sides of the support plate, and the support block is fixedly connected to the support plate through the first bolts.

9. The pressure gauge spring tube pressing device according to claim 7, characterized in that: Second bolts are installed on two opposite sides of the support plate, and the fixing plate is fixedly connected to the support plate through the second bolts.

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