Composite pole detection jig

Abstract

The utility model relates to the technical field of battery detection, in particular to a composite pole detection jig, a composite pole comprises a first part and a second part which are connected along the axial direction of the composite pole and are made of different materials, the first part protrudes out of the second part along the radial direction of the composite pole, and a detection auxiliary groove is arranged on the first part. The detection auxiliary groove is deep along the axial direction of the composite pole, and the groove bottom of the detection auxiliary groove is located at the second part. The composite pole detection tool comprises a positioning plate and a push rod. Wherein a first avoiding hole is formed in the positioning plate, and the second part is inserted into the first avoiding hole. The push rod is located on the side, abutting against the first part, of the positioning plate, one end of the push rod is inserted into the detection auxiliary groove, the other end of the push rod is connected to the thrust equipment, and the thrust equipment can apply thrust to the second part through the push rod to detect the connection strength of the combination surface of the first part and the second part. Compared with the prior art, the detection process using the composite pole detection jig is simple in operation, low in time consumption, high in efficiency and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of battery detection, in particular to a composite pole column detection fixture. Background Art

[0002] The composite pole column used in a battery generally includes a copper block and an aluminum block connected along the axial direction of the pole column. It is necessary to detect the tensile force that the joint surface of the copper block and the aluminum block can withstand to ensure the structural strength of the composite pole column. The existing detection fixture includes a welding block and a fixing block connected to each other. A first positioning groove is formed in the welding block. The copper block or the aluminum block of the composite pole column is inserted into the first positioning groove and welded and fixed to the first positioning groove. Thus, a tensile force device can apply a force to the copper block or the aluminum block of the composite pole column by pulling the fixing block. In the preliminary adjustment stage of welding, it is necessary to continuously adjust the focal length and energy to try to obtain the most suitable welding parameters. However, this process requires a large number of composite pole columns and welding blocks, and the preparation process is complex, time-consuming and costly. Moreover, only one composite pole column can be tested with one welding block. When testing a large number of composite pole columns, the consumption of auxiliary materials is large and the detection cost is high. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a composite pole column detection fixture, which can simplify the operation, improve the detection efficiency and reduce the detection cost.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Provide a composite pole column detection fixture. The composite pole column includes a first part and a second part made of different materials and connected along its own axial direction. The first part protrudes radially from the second part along the composite pole column. A detection auxiliary groove is formed in the first part. The detection auxiliary groove extends longitudinally along the axial direction of the composite pole column. The bottom of the detection auxiliary groove is located at the second part. The composite pole column detection fixture includes:

[0006] A positioning plate, on which a first avoidance hole is formed, and the second part is inserted at the first avoidance hole;

[0007] A push rod, which is located on the side of the positioning plate abutting against the first part. One end of the push rod is inserted into the detection auxiliary groove, and the other end is connected to a thrust device. The thrust device can apply a thrust to the second part through the push rod.

[0008] Optionally, a first positioning groove is formed on the positioning plate, and the first avoidance hole is formed at the bottom of the first positioning groove. The first part is located at the first positioning groove.

[0009] Optionally, the cross-sectional shape of the first avoidance hole is the same as the cross-sectional shape of the second part.

[0010] Optionally, the composite pole detection fixture further includes a base, and the positioning plate is disposed on the base.

[0011] Optionally, a second positioning groove is formed on the base, and a second avoidance hole is formed at the bottom of the second positioning groove. The positioning plate is erected at the second positioning groove, and the position of the second avoidance hole corresponds to the position of the detection auxiliary groove. Along the direction perpendicular to the axial direction of the composite pole, the maximum dimension of the second avoidance hole is larger than the maximum dimension of the detection auxiliary groove.

[0012] Optionally, the positioning plate is detachably connected to the base.

[0013] Optionally, the composite pole detection fixture further includes a positioning member. The positioning member is erected on the base, and a positioning through hole is formed through the positioning member. The position of the positioning through hole corresponds to the position of the detection auxiliary groove, and the push rod passes through the positioning through hole.

[0014] Optionally, the positioning member is detachably connected to the base.

[0015] Optionally, the plate surface of the positioning member is parallel to the horizontal direction, and the positioning through hole is formed in the vertical direction.

[0016] Optionally, the positioning member includes a positioning block and two support rods. The positioning through hole is formed in the positioning block. One end of each of the two support rods is connected to the positioning block, and the other end of each of the two support rods is connected to the base. The two support rods are located on both sides of the positioning plate.

[0017] Advantages of the present utility model:

[0018] The present utility model provides a composite pole detection fixture. The composite pole includes a first part and a second part made of different materials connected along its own axial direction. The first part protrudes radially from the second part along the composite pole. A detection auxiliary groove is formed on the first part. The detection auxiliary groove extends longitudinally along the axial direction of the composite pole, and the bottom of the detection auxiliary groove is located at the second part. The composite pole detection fixture includes a positioning plate and a push rod. Among them, a first avoidance hole is formed on the positioning plate, and the second part is inserted into the first avoidance hole. The push rod is located on the side where the positioning plate abuts against the first part. One end of the push rod is inserted into the detection auxiliary groove, and the other end is connected to a thrust device. The thrust device can apply a thrust to the second part through the push rod, so as to detect the connection strength of the joint surface between the first part and the second part, and obtain the maximum force that the remaining part of the joint surface can withstand. If the value of this force is greater than the tensile force value required for the composite pole joint surface specified in the battery performance requirements, it can be determined that the composite pole meets the performance requirements. The detection process using this composite pole detection fixture is simpler, less time-consuming, more efficient, and lower in cost compared with the prior art. Description of the Drawings

[0019] Figure 1 is a schematic structure diagram of a composite pole column detection fixture provided by an embodiment of the present utility model Figure 1 ;

[0020] Figure 2 is an exploded view of a composite pole column detection fixture provided by an embodiment of the present utility model;

[0021] Figure 3 is a schematic structure diagram of a composite pole column detection fixture provided by an embodiment of the present utility model Figure 2 ;

[0022] Figure 4 is Figure 3 the A - A cross - sectional view in

[0023] In the figure:

[0024] 1, positioning plate; 11, first avoidance hole;

[0025] 2, push rod; 3, base; 31, second positioning groove; 32, second avoidance hole;

[0026] 4, positioning member; 41, positioning block; 411, positioning through - hole; 42, support rod;

[0027] 800, composite pole column; 801, first part; 802, second part; 803, detection auxiliary groove. Specific embodiments

[0028] The technical solutions of the present utility model will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only parts related to the present utility model are shown in the drawings, not all parts.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0031] In order to detect the structural strength of the joint surface of the composite terminal post, the existing detection fixture includes a connected welding block and a fixed block. A first positioning groove is provided on the welding block. The copper block or aluminum block of the composite terminal post is inserted into the first positioning groove and welded and fixed to the first positioning groove. Thus, when a tensile device pulls the fixed block, a force can be applied to the copper block or aluminum block of the composite terminal post. In the preliminary adjustment stage of welding, it is necessary to continuously adjust the focal length and energy to try to obtain the most suitable welding parameters. However, this process requires a large number of composite terminal posts and welding blocks, and the preparation process is complex, time-consuming and costly. Moreover, only one composite terminal post can be tested with one welding block. When testing a large number of composite terminal posts, a large amount of auxiliary materials are consumed and the detection cost is high.

[0032] Therefore, in order to simplify the operation, improve the detection efficiency and reduce the detection cost, this embodiment provides a composite terminal post detection fixture. It is necessary to first groove the composite terminal post 800, and then use this composite terminal post detection fixture and a thrust device to detect the structural strength of the joint surface of the composite terminal post 800.

[0033] Specifically, as Figures 1 - 4As shown, the composite pole 800 includes a first part 801 and a second part 802 made of different materials and connected along its own axial direction. Optionally, in this embodiment, the material of the first part 801 is copper, and the material of the second part 802 is aluminum. The first part 801 protrudes radially from the second part 802 along the composite pole 800. In this embodiment, the cross-section of the first part 801 is similar to a square, and the cross-section of the second part 802 is similar to a circle. Of course, the actual shapes of the first part 801 and the second part 802 do not need to be restricted. A detection auxiliary groove 803 is provided on the first part 801. The detection auxiliary groove 803 extends longitudinally along the axial direction of the composite pole 800, and the bottom of the detection auxiliary groove 803 is located at the second part 802. Optionally, the depth of the detection auxiliary groove 803 is the same as the thickness of the first part 801, that is, the bottom of the detection auxiliary groove 803 is located at the interface between the second part 802 and the first part 801. Of course, in other embodiments, the depth of the detection auxiliary groove 803 can also be greater than the thickness of the first part 801, that is, the bottom of the detection auxiliary groove 803 is located within the second part 802. Optionally, the detection auxiliary groove 803 is coaxially arranged with the first part 801 and the second part 802 to ensure the balance of force.

[0034] The composite pole detection fixture of this embodiment includes a positioning plate 1 and a push rod 2. Among them, a first avoidance hole 11 is provided on the positioning plate 1, and the second part 802 is inserted at the first avoidance hole 11. The push rod 2 is located on the side of the positioning plate 1 that abuts against the first part 801. One end of the push rod 2 is inserted into the detection auxiliary groove 803, and the other end is connected to a thrust device. The thrust device can apply a thrust to the second part 802 through the push rod 2. And because the first part 801 is supported by the positioning plate 1, the connection strength of the joint surface between the first part 801 and the second part 802 can be detected, and the maximum force that the remaining joint surface can withstand except for the detection auxiliary groove 803 can be obtained. If the value of this force is greater than the tensile force value required for the joint surface of the composite pole 800 specified in the battery performance requirements, it can be determined that the composite pole 800 meets the performance requirements. The detection process using this composite pole detection fixture is simpler, less time-consuming, more efficient, and lower in cost compared with the prior art.

[0035] Optionally, a first positioning groove (not shown in the figure) is provided on the positioning plate 1. The first avoidance hole 11 is provided at the bottom of the first positioning groove, and the first part 801 is located at the first positioning groove. The first positioning groove can position the first part 801. The shape of the first positioning groove is adapted to the shape of the cross-section of the first part 801. And because the cross-section of the first part 801 is similar to a square, the first part 801 located in the first positioning groove can prevent the first part 801 from rotating or moving radially along the pole, ensuring that the push rod 2 is aligned with the detection auxiliary groove 803 and they are coaxially arranged. When the push rod 2 moves along its own axial direction, the actual force-bearing situation of the bottom of the detection auxiliary groove 803 can be ensured to be consistent with the design.

[0036] Optionally, the shape of the cross-section of the first avoidance hole 11 is the same as that of the cross-section of the second part 802. The cross-section of the first avoidance hole 11 is also circular, and the difference between the inner diameter of the first avoidance hole 11 and the outer diameter of the second part 802 is small, which can prevent the second part 802 from moving radially along the pole column. Moreover, the opening of the first avoidance hole 11 is correspondingly small, which can ensure a large supporting area for the first part 801 and prevent the first part 801 from bending and other situations.

[0037] To fix the positioning plate 1, optionally, the composite pole column detection fixture further includes a base 3, and the positioning plate 1 is arranged on the base 3. Optionally, a second positioning groove 31 is formed in the base 3, and a second avoidance hole 32 is formed at the bottom of the second positioning groove 31. The positioning plate 1 is erected at the second positioning groove 31. The position of the second avoidance hole 32 corresponds to the position of the detection auxiliary groove 803, and in the direction perpendicular to the axial direction of the composite pole column 800, the maximum dimension of the second avoidance hole 32 is larger than the maximum dimension of the detection auxiliary groove 803, so as to prevent the base 3 from contacting the second part 802 and affecting the accuracy of the measurement result.

[0038] Optionally, the positioning plate 1 is detachably connected to the base 3, which is convenient for assembly and replacement. When the size specifications of the composite pole column 800 to be measured change, it is necessary to replace the matching positioning plate 1. The detachable connection between the positioning plate 1 and the base 3 is convenient for disassembly and installation, and can quickly complete the preparatory work.

[0039] Optionally, the composite pole column detection fixture further includes a positioning member 4. The positioning member 4 is erected on the base 3, and a positioning through hole 411 is formed through the positioning member 4. The position of the positioning through hole 411 corresponds to the position of the detection auxiliary groove 803, and the push rod 2 passes through the positioning through hole 411. The positioning through hole 411 has a guiding effect on the movement of the push rod 2. Of course, two positioning members 4 can be arranged along the moving direction of the push rod 2 to further improve the guiding accuracy of the push rod 2.

[0040] Optionally, the positioning member 4 is detachably connected to the base 3 for convenient disassembly and installation. When it is necessary to replace the push rod 2 with different specifications and sizes, it is necessary to quickly replace the positioning member 4 so that its positioning through hole 411 is adapted to the push rod 2. The detachable connection of the positioning member 4 to the base 3 can improve the replacement efficiency.

[0041] Optionally, the plate surface of the positioning member 4 is parallel to the horizontal direction, and the positioning through hole 411 is opened in the vertical direction. That is, in this embodiment, the push rod 2 moves in the vertical direction, and the first avoidance hole 11 can also be opened in the vertical direction, and the axial direction of the pole column is the vertical direction. Of course, in other embodiments, the orientation can be adjusted according to the actual situation.

[0042] Optionally, the positioning member 4 includes a positioning block 41 and two support rods 42. A positioning through hole 411 is formed in the positioning block 41. One end of each of the two support rods 42 is connected to the positioning block 41, and the other end of each is connected to the base 3. The two support rods 42 are located on both sides of the positioning plate 1. That is, the two support rods 42 support the positioning block 41 so that the positioning block 41 is located above the positioning plate 1. Optionally, two stepped holes are formed in the positioning block 41, corresponding to the two support rods 42 respectively. The two support rods 42 are integrally formed with the base 3. When the positioning block 41 is placed on the two support rods 42, the support rods 42 are inserted into the two stepped holes and abut against the stepped surfaces (not shown in the figure), so that the support rods 42 can support the positioning block 41 and the positioning block 41 will not shake, realizing rapid assembly.

[0043] Compared with the detection methods in the prior art, when using the composite pole column detection fixture of this embodiment to detect the structural strength of the joint surface of the composite pole column 800, the welding process can be cancelled, product loss can be reduced, the operation process can be simplified, the efficiency can be improved, and the cost can be reduced. Moreover, the composite pole column detection fixture can be adapted by replacing the positioning plate 1, the push rod 2 and the positioning block 41 according to the size specifications of the composite pole column 800, greatly reducing the tooling cost. And the composite pole column detection fixture is applicable to the tensile test of the joint surface of any thickness of the single composite pole column 800, with wide applicability.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Compound terminal detection fixture, characterized in that, The composite terminal post (800) includes a first part (801) and a second part (802) made of different materials and connected along its own axial direction. The first part (801) protrudes radially from the second part (802) along the composite terminal post (800). A detection auxiliary groove (803) is formed on the first part (801). The detection auxiliary groove (803) extends longitudinally along the axial direction of the composite terminal post (800). The bottom of the detection auxiliary groove (803) is located at the second part (802). The composite terminal post detection fixture includes: A positioning plate (1) with a first avoidance hole (11) formed thereon. The second part (802) is inserted into the first avoidance hole (11). A push rod (2) located on the side of the positioning plate (1) that abuts against the first part (801). One end of the push rod (2) is inserted into the detection auxiliary groove (803), and the other end is connected to a thrust device. The thrust device can apply a thrust to the second part (802) through the push rod (2).

2. The composite terminal detection fixture according to claim 1, characterized in that A first positioning groove is formed on the positioning plate (1). The first avoidance hole (11) is formed at the bottom of the first positioning groove. The first part (801) is located at the first positioning groove.

3. The composite terminal detection fixture according to claim 1, characterized in that, The cross-sectional shape of the first avoidance hole (11) is the same as the cross-sectional shape of the second part (802).

4. The composite terminal detection fixture according to any one of claims 1-3, characterized in that The composite terminal post detection fixture further includes a base (3), and the positioning plate (1) is arranged on the base (3).

5. The composite terminal post detection fixture according to claim 4, wherein, A second positioning groove (31) is formed on the base (3). A second avoidance hole (32) is formed at the bottom of the second positioning groove (31). The positioning plate (1) is erected at the second positioning groove (31). The position of the second avoidance hole (32) corresponds to the position of the detection auxiliary groove (803). And along the direction perpendicular to the axial direction of the composite terminal post (800), the maximum dimension of the second avoidance hole (32) is larger than the maximum dimension of the detection auxiliary groove (803).

6. The composite terminal detection fixture according to claim 4, wherein The positioning plate (1) is detachably connected to the base (3).

7. The composite terminal post detection fixture according to claim 4, wherein, The composite terminal post detection fixture further includes a positioning member (4) erected on the base (3). A positioning through hole (411) is formed through the positioning member (4). The position of the positioning through hole (411) corresponds to the position of the detection auxiliary groove (803). The push rod (2) passes through the positioning through hole (411).

8. The composite terminal post detection fixture according to claim 7, wherein, The positioning member (4) is detachably connected to the base (3).

9. The composite terminal detection fixture according to claim 7, wherein, The plate surface of the positioning member (4) is parallel to the horizontal direction, and the positioning through hole (411) is formed along the vertical direction.

10. The composite terminal detection fixture according to claim 7, wherein, The positioning member (4) includes a positioning block (41) and two support rods (42). The positioning through hole (411) is formed on the positioning block (41). One end of each of the two support rods (42) is connected to the positioning block (41), and the other end of each is connected to the base (3). The two support rods (42) are located on both sides of the positioning plate (1).

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