Three-axis sensor sensing part assembling tool

Abstract

The utility model discloses an assembly tool for a sensing part of a three-axis sensor, belongs to the technical field of piezoelectric sensors, and solves the problems of high assembly difficulty and low assembly precision of the sensing part of the conventional three-axis sensor. The device comprises a fixed base, a positioning assembly and an ejector rod. According to the utility model, the assembling efficiency and the assembling precision are improved, and the three positioning through grooves on the positioning clamp can be sequentially fixed on the horizontal mounting surface through the rotating disc and the limiting piece, so that the sequential assembling of parts in the three-axis direction of the sensing part of the three-axis sensor is realized; and the three positioning through grooves which are perpendicular to one another ensure the fitting degree among the piezoelectric ceramic, the conducting strip and the mass block and the coaxiality with the mounting surface of the base, so that the piezoelectric ceramic assembly has the characteristics of high assembly precision, high efficiency and low cost, and is particularly suitable for small-batch production.

Description

TECHNICAL FIELD

[0001] The utility model relates to piezoelectric sensor technical field, concretely relates to a three -axis sensor sensing part assembly tool. BACKGROUND

[0002] Piezoelectric acceleration sensor is a kind of sensor using the piezoelectric effect of piezoelectric element to convert acceleration signal into proportional output charge or voltage signal.Three-axis piezoelectric acceleration sensor can complete the acceleration measurement of three vertical directions simultaneously, and from the level of system, the installation quantity of sensor can be reduced and cost is reduced.

[0003] In prior art, reference Figure 5 The sensing part 400 of three-axis piezoelectric acceleration sensor usually includes base 41, piezoelectric ceramic 42, conducting sheet 43, piezoelectric ceramic 42 and mass 43 are sequentially connected on the three mutually perpendicular mounting surfaces on base 41 by bolt 45.Due to the small volume of each component, it is difficult to assemble directly by manual and the assembly precision is low. UTILITY MODEL CONTENT

[0004] In view of the above problems in prior art, the utility model provides a three-axis sensor sensing part assembly tool, which solves the problems of high assembly difficulty and low assembly precision of the sensing part of existing three-axis sensor.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A three-axis sensor sensing part assembly tool is provided, comprising:

[0007] Fixed base, the fixed base includes two oppositely arranged support plates and mounting plates;

[0008] Positioning assembly, the positioning assembly includes:

[0009] Positioning rod, the positioning rod is horizontally arranged between the support plate and the mounting plate;

[0010] Rotary disc, the rotary disc is fixed on one end of the positioning rod and is rotatably arranged in the mounting plate, and the rotary disc is provided with limiting pieces for fixing the rotary disc in three rotary positions;

[0011] Positioning clamp, one end of the positioning clamp is fixed on the positioning rod, and the other end surface of the positioning clamp is provided with positioning holes for positioning the sensing part base, and the annular surface of the positioning hole is provided with three mutually perpendicular positioning through grooves for piezoelectric ceramic, conducting sheet and mass of the sensing part;

[0012] Jack, the jack passes through the support plate and abuts against the base in the positioning hole;

[0013] The three rotation positions are in one-to-one correspondence with the three positioning through grooves, and when the limiting piece fixes the rotating disc at each rotation position, the corresponding positioning through groove is in a horizontal position.

[0014] In the scheme, the rotating disc and the limiting piece can sequentially fix the three positioning through grooves of the positioning clip on the horizontal mounting surface, so that the mass block, the piezoelectric ceramic, the conductive sheet and the piezoelectric ceramic are sequentially fixed on the three mutually perpendicular mounting surfaces of the base through bolts, which not only realizes the sequential assembly of the three-axis sensor receiving part in three-axis directions, improves the assembly efficiency, and ensures the fitting degree between the piezoelectric ceramic, the conductive sheet and the mass block and the coaxiality with the mounting surface of the base through the three mutually perpendicular positioning through grooves, and improves the assembly precision.

[0015] Further, the fixed base further comprises a bottom plate, and the supporting plate and the mounting plate are respectively vertically fixed on two sides of the bottom plate. The bottom plate increases the stability of the entire tooling, which helps to improve the assembly precision.

[0016] Further, the rotating disc comprises a rotating shaft and a fixed disc arranged concentrically, the rotating shaft is rotatably arranged in the rotating hole of the mounting plate, and the end face of the fixed disc is provided with three limiting holes matched with the limiting piece, the central angle between adjacent two limiting holes is 90°, and one end of the limiting piece is inserted into the fixing hole of the mounting plate through the limiting hole. The position of the rotating disc is fixed by the limiting piece, so that the rotating disc can stop at three accurate angle positions, which facilitates the assembly work in different directions and improves the assembly efficiency and accuracy.

[0017] Further, the diameter of the fixed disc is greater than the diameter of the rotating shaft. The diameter of the fixed disc is greater than the diameter of the rotating shaft. The diameter of the fixed disc is set to help enhance the structural strength of the fixed disc, prevent deformation during operation, and thus ensure the assembly precision.

[0018] Further, one end of the positioning rod is provided with a flat connecting plate, and a through hole matched with the locking pin is formed in the end face of the flat connecting plate; a flat hole is formed in one end face of the rotating shaft, and a fixing hole vertically penetrating the flat hole is formed in the outer wall surface of the rotating shaft; wherein the flat connecting plate is inserted into the flat hole, and the locking pin is sequentially inserted into the fixing hole and the through hole to fix the fixed column on the flat connecting plate. The flat connecting plate is inserted into the flat hole of the rotating shaft and fixed by the locking pin, which is convenient to connect.

[0019] Further, the flat connecting plate is fixed on the middle part of the large-diameter end of the circular table, and the small-diameter end of the circular table is fixed with the positioning rod. The setting of the circular table enhances the strength of the connecting part of the flat connecting plate.

[0020] Further, the diameter of the small-diameter end of the circular table is greater than the diameter of the positioning rod. The diameter of the circular table is set to ensure the structural strength of the circular table.

[0021] Further, the notch of each positioning through slot comprises a rectangular port for positioning the two piezoelectric ceramics and conductive sheets and a V-shaped port for positioning the mass, the V-shaped port being above the rectangular port. The arrangement of the V-shaped port and the rectangular port enables the components of each sensor to be accurately placed in their proper positions, greatly simplifying the assembly process and improving the assembly accuracy.

[0022] Further, a limiting head is arranged on the end of the ejector pin away from the support plate. The limiting head can effectively limit the stroke of the ejector pin, prevent damage to elements caused by excessive advancement, and also help to accurately control the assembly force.

[0023] Further, the thickness of the bottom plate body of the support plate and the mounting plate is greater than the thickness of the top plate body of the support plate and the mounting plate. The arrangement of the plate body thickness of the support plate and the mounting plate can increase the carrying capacity of the bottom of the two, reduce the influence of vibration on the assembly process, and help to improve the overall stability and assembly accuracy.

[0024] The utility model discloses a three -axis sensor sensor part assembly tool, its beneficial effects are:

[0025] The utility model improves assembly efficiency and assembly accuracy, and three positioning through slots can be fixed on the horizontal mounting surface in turn through the rotary disc and the limiting piece, realizes the assembly of three -axis sensor sensor part three -axis direction spare in proper order, and three mutually perpendicular positioning through slots guarantee the adhesion between piezoelectric ceramic, conductive sheet and mass and the coaxial degree with base mounting surface, have the characteristics of high assembly accuracy, high efficiency, low cost, and are especially suitable for small -batch production. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is three -axis sensor sensor part assembly tool's structural schematic diagram;

[0027] Figure 2 It is three -axis sensor sensor part assembly tool's section;

[0028] Figure 3 It is flat connecting plate's structural schematic diagram;

[0029] Figure 4 It is the end face of positioning clamp elevation;

[0030] Figure 5 It is three -axis sensor sensor part's structural schematic diagram;

[0031] Wherein: 100, fixed base; 11, bottom plate; 12, support plate; 13, mounting plate; 200, positioning assembly; 21, positioning rod; 211, circular table; 212, flat connecting plate; 22, rotating disc; 221, limiting piece; 23, positioning clamp; 231, positioning hole; 232, positioning through slot; 300, top rod; 400, sensing part; 41, base; 42, piezoelectric ceramic; 43, conductive sheet; 44, mass; 45, bolt. DETAILED DESCRIPTION

[0032] The specific embodiments of the utility model are described below, so that the person skilled in the art can understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific embodiments, for the person skilled in the ordinary skill in the art, as long as various changes are within the spirit and scope of the utility model defined and determined by the appended claims, these changes are obvious, all the utility model creations using the utility model concept are within the scope of protection.

[0033] REFERENCE Figure 1 And Figure 2 The embodiment provides a three-axis sensor sensing part assembly tool, realizes the sequential assembly of three-axis sensor sensing part 400 three-axis direction parts, provides assembly efficiency and assembly precision, which comprises a fixed base 100, a positioning assembly 200 and a top rod 300.

[0034] The fixed base 100 comprises a bottom plate 11, and the bottom plate 11 is vertically fixed with a support plate 12 and a mounting plate 13 on both sides, respectively, and the thickness of the bottom plate body of the support plate 12 and the mounting plate 13 is greater than that of the top plate body of the support plate 12 and the mounting plate 13.

[0035] The positioning assembly 200 is used for limiting the three-axis sensor sensing part 400 parts, specifically, the positioning assembly 200 comprises a positioning rod 21, a rotating disc 22 and a positioning clamp 23.

[0036] The positioning rod 21 is horizontally arranged between the support plate 12 and the mounting plate 13.

[0037] The rotating disc 22 is fixed on one end of the positioning rod 21 and is rotatably arranged in the mounting plate 13, and the rotating disc 22 is provided with limiting pieces 221 for fixing the rotating disc 22 in three rotating positions.

[0038] One end of the positioning clamp 23 is fixed on the positioning rod 21, and the other end face of the positioning clamp 23 is provided with a positioning hole 231 for positioning the base 41 of the sensing part 400. Three positioning through grooves 232 for the piezoelectric ceramic 42, the conductive sheet 43 and the mass block 44 of the sensing part 400 are arranged on the annular surface of the positioning hole 231. The three rotation positions are in one-to-one correspondence with the three positioning through grooves 232, and the limiting part 221 fixes the rotating disc 22 in each rotation position, and the corresponding positioning through groove 232 is in a horizontal position. In the embodiment, the limiting part 221 is a bolt.

[0039] The top rod 300 is used for limiting the base 41 of the sensing part 400, and the top rod 300 penetrates the support plate 12 and abuts against the base 41 in the positioning hole 231. A limiting head is arranged on the end of the top rod 300 away from the support plate 12. The limiting head can effectively limit the stroke of the top rod 300, prevent damage to the elements caused by excessive pushing, and also help to accurately control the assembly force. In the embodiment, the top rod 300 can be threadedly connected with the support plate 12, or a friction layer can be arranged on the outer wall surface to increase the abutting force.

[0040] As a specific structure of the rotating disc 22, the rotating disc includes a rotating shaft and a fixed disc arranged concentrically. The rotating shaft is rotatably arranged in the rotating hole of the mounting plate 13. The fixed disc is provided with three limiting holes on the end face, and the central angles between the adjacent two limiting holes are all 90°. One end of the limiting part 221 penetrates the limiting hole and is inserted into the fixing hole of the mounting plate 13. The position of the rotating disc 22 is fixed by the limiting part 221, so that the rotating disc 22 can stay at three accurate angle positions, which facilitates the assembly work in different directions and improves the assembly efficiency and accuracy. In the embodiment, the diameter of the fixed disc is greater than the diameter of the rotating shaft. The diameter of the fixed disc is arranged in this way to help enhance the structural strength of the fixed disc and prevent deformation during operation, thereby ensuring the assembly accuracy.

[0041] As a specific connection structure of the positioning rod 21 and the rotating shaft, one end of the positioning rod 21 is provided with a flat connecting plate 212, and a through hole matched with the locking pin is arranged on the end face of the flat connecting plate 212. A flat hole is arranged on the end face of the rotating shaft, and a fixing hole vertically penetrating the flat hole is arranged on the outer wall surface of the rotating shaft. The flat connecting plate 212 is inserted into the flat hole, and the locking pin sequentially penetrates the fixing hole and the through hole to fix the fixed column on the flat connecting plate 212. The flat connecting plate 212 is inserted into the flat hole of the rotating shaft and fixed by the locking pin, and the connection is convenient.

[0042] In order to enhance the strength of the connection part of the flat connecting plate 212, the flat connecting plate 212 is fixed on the large-diameter end of the circular table 211, the small-diameter end of the circular table 211 is fixed with the positioning rod 21, and the diameter of the small-diameter end of the circular table 211 is greater than the diameter of the positioning rod 21.

[0043] Reference Figure 3 And Figure 4 As a specific structure of the positioning clamp 23, the positioning hole 231 on the positioning clamp 23 is a rectangular hole. Specifically, referring to Figure 4 Wherein Figure 4 A of the rectangular hole is four vertical corner positioning surfaces, which are used to position the four corners of the base 41.

[0044] A partition column is arranged between the two adjacent positioning through grooves 232, and the slot of each positioning through groove 232 includes a rectangular port and a V-shaped port, and the V-shaped port is located above the rectangular port. Referring to Figure 4 , Figure 4 B of each rectangular port is two side shaping surfaces, which are used to position two piezoelectric ceramics 42 and two sides of the conductive. Figure 4 C in the V-shaped port is two side surfaces, which are used to position the mass block 44.

[0045] In summary, the working principle of the present scheme is as follows:

[0046] The base 41 of the sensor is placed in the positioning hole 231 and positioned by the top rod 300, and the three positioning through grooves 232 on the positioning clamp 23 are fixed on the horizontal plane in turn by the rotating disc 22 and the limiting piece 221.

[0047] For each positioning through groove 232 on the horizontal plane, the piezoelectric ceramic 42, the conductive sheet 43, the piezoelectric ceramic 42 and the mass block 44 are placed in the positioning through groove in turn, and the threaded connection between the mass block 44, the piezoelectric ceramic 42, the conductive sheet 43 and the piezoelectric ceramic 42 and the mounting surface on the base 41 is achieved by the bolt 45.

[0048] Although the specific embodiments of the utility model are described in detail in combination with the drawings, it should not be understood as limiting the protection scope of the patent. Various modifications and variations made by those skilled in the art within the scope described in the claims are still within the protection scope of the patent.

Claims

1. A fixture for assembling the sensing part of a triaxial sensor, characterized in that, The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100).

2. The triaxial sensor receiving portion assembly jig according to claim 1, characterized by, The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100).

3. The triaxial sensor receiving portion assembly jig according to claim 1, characterized by, The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100).

4. The triaxial sensor receiving portion assembly jig according to claim 3, characterized by, The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100).

5. The triaxial sensor receiving portion assembly jig according to claim 3, characterized by, The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100).

6. The triaxial sensor receiving portion assembly jig according to claim 5, characterized by, The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100).

7. The triaxial sensor receiving portion assembly jig according to claim 6, characterized by, The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the mounting plate (13) are opposite and are provided with the positioning assembly (200) and the positioning clamp (23) of the fixed base (100). The utility model relates to a fixed base (100) is provided with two opposite support plate (12) and mounting plate (13), and the support plate (12) and the mounting plate (13) are fixed on the bottom plate (11) of the fixed base (100) respectively, and the support plate (12) and the 8. The triaxial sensor receiving portion assembly tool according to claim 1, characterized by, The notch of each positioning groove (232) comprises a rectangular opening for positioning two piezoelectric ceramics (42) and the conductive sheet (43) and a V-shaped opening for positioning the mass (44), which is above the rectangular opening.

9. The triaxial sensor receiving portion assembly tool according to claim 1, characterized by, A limiting head is arranged on the end of the ejector rod (300) away from the support plate (12).

10. The triaxial sensor receiving portion assembly tool according to claim 2, characterized by, The thickness of the bottom plate body of the support plate (12) and the mounting plate (13) is greater than the thickness of the top plate body of the support plate (12) and the mounting plate (13).

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