Assembly fixture for flow meter products
By designing and assembling tooling, and utilizing structures such as support plates, positioning pins, and external pressure blocks, the problem of inaccurate positioning of the flow meter product base was solved, achieving precise positioning and initial fixation of the base and upper shell, simplifying the installation process, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SIEMENS SENSORS & COMM
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-10
AI Technical Summary
In the prior art, when installing the base onto the upper shell of the flow meter product, it is difficult to ensure the accurate position of the positioning hole and the installation angle of the base, which leads to inconvenience in installation and difficulty in achieving center alignment between the upper shell and the base.
An assembly fixture was designed, comprising a pair of vertically arranged support plates and a horizontally connected first end plate. A positioning pin and an outer pressure block are provided on the base. The positioning pin is inserted into the positioning hole of the base to achieve accurate positioning and fixation of the base. The outer pressure block rotates up and down to tighten. The support plates make V-shaped contact with the upper shell to improve positioning accuracy. A clamping device is used to clamp the semi-finished product.
It achieves accurate positioning and initial fixation of the base and upper shell, is easy to operate, and is especially suitable for flow meter products with larger diameters, reducing installation difficulty and cost.
Smart Images

Figure CN224475839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flow meter production and processing, and more specifically, to an assembly tooling for flow meter products. Background Technology
[0002] Figure 1 This is a partial structural diagram of a product other than the flow meter; such as Figure 1 As shown, the flow meter product has its coil (not shown) protected by a housing, and the transmitter is mounted on a base to realize the product's measurement function. The housing consists of an upper shell, a lower shell, and a base. The base has five positioning holes that determine the position of the transmitter on the X and Z axes in space.
[0003] When installing the base onto the upper shell, it is necessary to accurately position the positioning holes on the base to ensure the installation angle. The base must be located at the center of the upper shell, and the center holes of the outer shell and the base must be on the same axis. Utility Model Content
[0004] In view of this, the present invention proposes an assembly fixture for flow meter products, which facilitates the correct orientation positioning of the base and the assembly and installation between the base and the upper shell.
[0005] According to an embodiment of the present invention, an assembly fixture for a flow meter product includes an upper shell and a base. The base is adapted to be installed into the central hole of the upper shell. The assembly fixture includes a pair of vertically arranged and parallel support plates, which are configured to be mounted on opposite ends of the upper shell perpendicular to the arc direction. A first end plate is horizontally connected to the center of the pair of support plates. A base is provided at the center of the bottom of the first end plate. The base is provided with positioning pins adapted to the position and arrangement of positioning holes on the base. When the positioning pins are inserted into the positioning holes, the base is mounted on the base in a first orientation. External pressure blocks are provided on opposite sides of the base to fix the base mounted on the base.
[0006] Furthermore, the external pressure block is configured to rotate and move up and down to fix or loosen the base mounted on the base.
[0007] Furthermore, the positioning pins include two or more pins, each corresponding to one or more positioning holes on the base.
[0008] Furthermore, the end faces of the pair of support plates that contact the end face of the upper shell are respectively set as V-shaped, and the V-shaped end faces are set to be tightly attached to the end face of the upper shell.
[0009] Furthermore, the height of the end face of the base to the contact position between the V-shaped end face and the end face of the upper shell is adapted to the height of the base protruding from the end face of the outer shell.
[0010] Furthermore, handles are respectively provided on both sides of the pair of support plates located on the first end plate.
[0011] Furthermore, the assembly fixture also includes a V-groove and a clamping device. The V-groove is suitable for placing the semi-finished product of the flow meter, and the clamping device is suitable for clamping the upper shell placed on the semi-finished product.
[0012] Furthermore, the semi-finished product includes a pair of flanges arranged opposite each other, and each of the pair of flanges has a grounding hole. The center point of the upper shell and the grounding holes of the pair of flanges are in a straight line.
[0013] Furthermore, the assembly fixture is available in various sizes to accommodate different models of the flow meter product.
[0014] Furthermore, the flow meter product is a flow meter product with a diameter of DN200 to DN600.
[0015] According to the assembly fixture of the flow meter product according to the embodiment of this utility model, a pair of support plates are set for mounting at both ends of the upper shell. The center of the pair of support plates is horizontally connected to the first end plate. A base is set at the center of the bottom of the first end plate, and a positioning pin is pressed on the base so that the base can be installed on the base, thereby being located in the center of the upper shell. The positioning pin ensures the installation orientation of the base, and the base is fixed by installing an external pressure block on the base. In this way, after the positions of the base and the upper shell are positioned as required, they can be fixed by the external pressure block. Then, the base and the upper shell are spot welded to achieve preliminary fixation. It can be seen that with this assembly fixture, the upper shell and the base can be installed and fixed according to the installation position and orientation requirements. The operation is simple and the cost is low. Especially for flow meter products with a slightly larger diameter, the base can be installed without moving the upper shell. Attached Figure Description
[0016] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the above and other features and advantages of the present invention, in which:
[0017] Figure 1 This is a partial structural diagram of a flow meter product;
[0018] Figure 2 This is a front view of the assembly fixture for the flow meter product according to an embodiment of the present utility model;
[0019] Figure 3This is a bottom view of the assembly fixture for the flow meter product according to an embodiment of the present utility model;
[0020] Figure 4 A schematic diagram of the assembly fixture of the flow meter product according to an embodiment of the present invention installed on both ends of the upper shell.
[0021] The reference numerals in the attached figures are as follows:
[0022] 1 board 3 First end plate 5 positioning pins 7 external pressure blocks 10 Fixed Columns 20 hands 101 Top Case 102 bases 110 positioning hole 200 Assembly fixtures Detailed Implementation
[0023] To make the objectives, technical solutions and advantages of this utility model clearer, the following embodiments will be used to further describe this utility model in detail.
[0024] Figure 2 This is a front view of the assembly fixture 200 for a flow meter product according to an embodiment of the present utility model; Figure 3 This is a bottom view of the assembly fixture 200 for the flow meter product according to an embodiment of the present utility model;
[0025] like Figure 2 and Figure 3 As shown, the assembly fixture 200 of the flow meter product according to an embodiment of the present invention includes a pair of vertically arranged and parallel support plates 1. The pair of support plates 1 are configured to be mounted on opposite ends of the upper shell 101 perpendicular to the arc direction. A first end plate 3 is horizontally connected at the center of the pair of support plates 1. A base is provided at the center of the bottom of the first end plate 3. The base is provided with positioning pins 5 adapted to the position and arrangement of positioning holes 110 on the base 102. The positioning pins 5 are adapted to install the base 102 in a first orientation when the positioning holes 110 are inserted therein. External pressure blocks 7 are provided on opposite sides of the base to fix the base 102 mounted on the base.
[0026] Specifically, the first end plate 3 is located at the center of the pair of support plates 1 along the Z-axis, and the base is located at the center of the first end plate 3 along the X-axis. The base and the first end plate 3 can be integral or separate. Since the first end plate 3 is located at the center of the pair of support plates 1, and the first end plate 3 is horizontally positioned while the pair of support plates 1 are vertically positioned, the first end plate 3 is perpendicular to the pair of support plates 1. Therefore, after the base 102 is installed on the base, the opposite ends of the upper shell 101 along the X-axis correspond to the ends of the pair of support plates 1, and the center hole of the upper shell 101 is also located at the center in this direction. Therefore, the center hole of the upper shell 101 and the center hole of the base 102 are aligned axially, and the base 102 and the upper shell 101 are perpendicular. Afterwards, the base 102 and the upper shell 101 can be initially fixed by tack fixing.
[0027] Furthermore, a positioning post is vertically downwardly positioned at the center of the base, and the positioning post is adapted to pass through the central hole of the base 102. This facilitates the positioning of the base 102.
[0028] Furthermore, the external pressure block 7 is configured to rotate and move up and down to fix or loosen the base 102 mounted on the base. Specifically, as shown... Figure 3 As shown, the outer pressure block 7 is mounted on the base by bolts, which protrude from the upper surface of the first end plate 3. The outer pressure block 7 can be rotated or tightened / untightened by a knob bolt, thereby securing it to the base 102 mounted on the base. Of course, those skilled in the art can also have other embodiments to achieve this function of the outer pressure block 7. These methods do not require additional creative effort and will not be elaborated here.
[0029] Furthermore, the positioning pins 5 include two or more pins, each corresponding to one or more positioning holes 110 on the base 102. Specifically, for example, the three right-hand holes 1 at the 3 o'clock position and the hole 2 at the 6 o'clock position of the positioning holes 110110 on the base 102 are used for positioning. This allows the base 102 to be positioned in the desired first orientation.
[0030] Furthermore, the end faces of the pair of support plates 1 that contact the end face of the upper shell 101 are respectively configured as V-shaped, and the V-shaped end faces are configured to fit tightly against the end face of the upper shell 101. This configuration allows for maximum fit with the end face of the upper shell 101, which helps to achieve more accurate positioning.
[0031] Furthermore, the height of the contact position between the end face of the base and the V-shaped end face with the end face of the upper shell 101 is adapted to the height of the base 102 protruding from the end face of the outer shell. Based on this embodiment, the length of the base 102 protruding from the upper part of the end face of the upper shell 101 can be preset.
[0032] Furthermore, handles 20 are respectively provided on both sides of the pair of support plates 1 located on the first end plate 3.
[0033] Furthermore, the assembly fixture 200 is available in various sizes to accommodate different models of the flow meter products. Depending on the size of the upper housing 101 of different flow meter models, different specifications of support plates 1 and first end plates 3 are provided, thus broadening the application range of the assembly fixture 200 of this embodiment.
[0034] Furthermore, the assembly fixture 200 also includes a V-groove and a clamping device. The V-groove is suitable for placing the semi-finished product of the flow meter, and the clamping device is suitable for placing the upper shell 101 on the semi-finished product and then clamping the upper shell 101 onto the semi-finished product. In this embodiment, the semi-finished product of the flow meter (e.g., including pipes and coils) is installed in the V-groove. The clamping device includes, for example, a lower pressure end plate and a lower pressure metal part. The lower pressure end plate is disposed above the outer shell assembled on the periphery of the semi-finished product and is connected to the output end of a cylinder to move up and down under the action of the cylinder. An opening is provided at the end of the lower pressure end plate, and the lower pressure metal part is engaged in the opening to move up and down with the movement of the lower pressure end plate, thereby applying force to clamp the upper shell 101, which can then be welded and fixed.
[0035] Furthermore, the semi-finished product includes a pair of flanges arranged opposite each other, each flange having a grounding hole. The center point of the upper shell 101 and the grounding holes of the pair of flanges are aligned in a straight line. This achieves the requirement that the grounding holes of the flanges and the center hole of the base 102 are aligned.
[0036] The assembly fixture 200 for the flow meter product based on the embodiments of this utility model can be used for flow meter products with a diameter of 200cm to 600cm.
[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An assembly fixture (200) for a flow meter product, the flow meter product comprising an upper housing (101) and a base (102), the base (102) being adapted to be installed into the central hole of the upper housing (101); characterized in that, The assembly fixture (200) includes a pair of vertically arranged and parallel support plates (1), which are configured to be mounted on opposite ends of the upper shell (101) perpendicular to the arc direction; the center of the pair of support plates (1) is horizontally connected to a first end plate (3), and a base is provided at the center of the bottom of the first end plate (3). The base is provided with positioning pins (5) suitable for the position and arrangement of the positioning holes (110) on the base (102). The positioning pins (5) are suitable for mounting the base (102) on the base in a first orientation when the positioning holes (110) are inserted therein. External pressure blocks (7) are provided on opposite sides of the base, which are suitable for fixing the base (102) mounted on the base.
2. The assembly fixture (200) for the flow meter product according to claim 1, characterized in that, The external pressure block (7) is configured to rotate and move up and down to fix or loosen the base (102) mounted on the base.
3. The assembly fixture (200) for the flow meter product according to claim 1 or 2, characterized in that, The positioning pins (5) are two or more, each corresponding to one or more positioning holes (110) on the base (102).
4. The assembly fixture (200) for the flow meter product according to claim 1, characterized in that, The end faces of the pair of support plates (1) that contact the end face of the upper shell (101) are respectively set as V-shaped, and the V-shaped end faces are set to be close to the end face of the upper shell (101).
5. The assembly fixture (200) for the flow meter product according to claim 4, characterized in that, The height of the end face of the base to the contact position of the V-shaped end face with the end face of the upper shell (101) is adapted to the height of the base (102) protruding from the end face of the outer shell.
6. The assembly fixture (200) for the flow meter product according to claim 1, characterized in that, The pair of support plates (1) are respectively provided with handles (20) on both sides of the first end plate (3).
7. The assembly fixture (200) for the flow meter product according to claim 1, characterized in that, The assembly fixture (200) also includes a V-groove and a clamping device. The V-groove is suitable for placing the semi-finished product of the flow meter, and the clamping device is suitable for clamping the upper shell (101) placed on the semi-finished product.
8. The assembly fixture (200) for the flow meter product according to claim 7, characterized in that, The semi-finished product includes a pair of flanges arranged opposite each other, and each of the pair of flanges has a grounding hole. The center point of the upper shell (101) and the grounding holes of the pair of flanges are in a straight line.
9. The assembly fixture (200) for the flow meter product according to claim 1, characterized in that, The assembly fixture (200) is available in various sizes to accommodate different models of the flow meter products.
10. The assembly fixture (200) for the flow meter product according to claim 1, characterized in that, The flow meter products mentioned are flow meter products with a diameter of DN200 to DN600.