Airtightness detection tool clamp convenient for checking workpiece

Abstract

The utility model, which relates to the technical field of the air tightness detection tool of the battery tray of the new energy automobile, provides an air tightness detection tool clamp convenient for checking a workpiece, comprising a detection tool table, positioning holes arranged at the two sides of the middle part of the top end of the detection tool table, a pedestal installed at the bottom of the detection tool table, and clamping assemblies arranged at the four sides of the top of the pedestal. The clamping assembly is used for clamping the battery tray placed on the top of the detection tool table, and the lifting assemblies are arranged on the two sides of the top of the base and used for lifting the battery tray for airtight detection. According to the airtightness detection tool convenient for workpiece inspection, the battery tray can be fixed on the detection tool table through the clamping assembly, so that the placement stability of the battery tray is improved, the displacement of the battery tray during the installation of a battery pack is prevented, and the influence on the installation of the battery pack is avoided; and through the lifting assembly, the battery tray can be conveniently lifted to perform airtightness detection on the rivet nuts at the bottom of the battery tray, so that the purposes of saving time and labor are achieved, and the working efficiency of airtightness detection on the rivet nuts at the bottom of the battery tray is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of airtight detection tooling for new energy vehicle battery trays, in particular to an airtight detection tooling fixture for facilitating inspection of workpieces. Background Art

[0002] The battery tray is one of the key components of the power battery system of new energy vehicles. Its main function is to provide installation and fixing support for the battery module or battery pack. At the same time, the battery tray also plays a protective role in the battery system. In new energy vehicles, the design and manufacturing quality of the battery tray are directly related to the safety and stable operation of the battery system and the performance of the whole vehicle. When the existing battery pack is installed on the battery tray, it is necessary to place the battery tray on the inspection workbench, and then use the installation robot to grab the battery pack and place it in the battery slot in the battery tray, and install the rivet nut at the bottom of the battery tray. The rivet nut improves the connection strength between the battery tray and the bottom of the battery pack to ensure the stability and safety of the battery pack. However, the existing battery tray is placed on the inspection workbench only by the limit plate to place and fix its two sides, which makes the stability of the battery tray poor, and it is easy to cause the battery tray to shift, thereby affecting the installation of the battery pack. At the same time, after the battery pack is installed in the battery tray, due to the large overall volume of the battery tray and the heavy battery tray, it is not convenient to lift the battery tray and check the rivet nut at the bottom of the battery tray for leakage. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to provide an airtight detection fixture which is convenient for checking the workpiece, and the battery tray can be fixed on the detection fixture table through the clamping assembly, so as to improve the stability of the placement of the battery tray, prevent the battery tray from shifting during the installation of the battery pack, avoid affecting the installation of the battery pack, and the battery tray can be lifted up by the lifting assembly to perform an airtight detection on the rivet nuts at the bottom, so as to achieve the purpose of saving time and labor and improve the work efficiency of the airtight detection of the rivet nuts at the bottom of the battery tray.

[0004] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0005] A gas-tight detection fixture for facilitating inspection of workpieces, comprising: a detection fixture table, positioning holes provided on both sides of the middle of the top of the detection fixture table, a base installed at the bottom of the detection fixture table, clamping assemblies arranged on the four sides of the top of the base, used to clamp a battery tray placed on the top of the detection fixture table, and lifting assemblies arranged on both sides of the top of the base, used to lift the battery tray for gas-tight detection.

[0006] Preferably, the clamping assembly includes: a clamping cylinder installed on four sides of the top of the base, a telescopic rod a arranged on the top of the clamping cylinder, a fixing frame installed on the top of the telescopic rod a, and clamping blocks installed on both sides of the bottom of the fixing frame.

[0007] Preferably, the lifting assembly includes: a lifting cylinder installed on both sides of the bottom of the base, through holes opened on both sides of the top of the base, a telescopic rod b arranged on the top of the lifting cylinder, the telescopic rod b passes through the through holes and extends to the top of the base, and a top block installed on the top of the telescopic rod b.

[0008] Preferably, filling plates are provided on both sides of the top of the detection workbench, a plurality of insertion holes are opened on both sides of the bottom of the filling plate, and limiting columns plugged and fixed with the insertion holes are installed on both sides of the top of the base.

[0009] Preferably, universal wheels are installed at the four corners of the bottom of the base, lifting cylinders are installed at the four sides of the bottom of the base, a lifting rod is provided at the bottom of the lifting cylinder, and a fixing block is fixedly installed at the bottom of the lifting rod.

[0010] Preferably, three support columns are installed on one side of the top of the base, and a blocking cylinder is installed on the top of the three support columns. A telescopic rod c is provided at the outer end of the blocking cylinder, and a blocking block is installed at one end of the telescopic rod c.

[0011] Preferably, a plurality of control boxes are installed on one side of the outer end of the base, and the plurality of control boxes are all located at the bottom of the blocking cylinder.

[0012] The beneficial effects of the utility model are:

[0013] (1) The clamping assembly of the utility model can fix the battery tray on the inspection workbench, thereby improving the stability of the battery tray and preventing the battery tray from shifting during the installation of the battery pack, thereby avoiding affecting the installation of the battery pack.

[0014] (2) The lifting assembly of the utility model makes it easy to lift the battery tray to perform airtightness test on the rivet nuts at the bottom of the battery tray, thereby saving time and effort and improving the work efficiency of airtightness test on the rivet nuts at the bottom of the battery tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the base structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the lifting cylinder structure of the utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the clamping cylinder of the utility model.

[0019] Figure 5 This is a schematic diagram of the connection structure between the clamping cylinder and the base of the utility model.

[0020] Figure 6 It is a schematic diagram of the bottom structure of the base of the utility model.

[0021] Figure 7 It is a schematic diagram of the plugging cylinder structure of the utility model.

[0022] Figure 1-Figure 7 In: 1. Inspection workbench; 101. Positioning hole; 102. Filling plate; 2. Base; 201. Limit column; 202. Universal wheel; 203. Lifting cylinder; 204. Lifting rod; 205. Fixing block; 3. Clamping cylinder; 301. Telescopic rod a; 302. Fixing frame; 303. Clamping block; 4. Lifting cylinder; 401. Through hole; 402. Telescopic rod b; 403. Top block; 5. Support column; 501. Blocking cylinder; 502. Telescopic rod c; 503. Blocking block; 6. Control chassis. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0024] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Example 1

[0026] like Figure 1-Figure 7 As shown, an airtight testing fixture for checking workpieces comprises: a testing table 1, positioning holes 101 provided on both sides of the middle of the top of the testing table 1, a base 2 installed at the bottom of the testing table 1, clamping assemblies arranged on the four sides of the top of the base 2, for clamping a battery tray placed on the top of the testing table 1, and lifting assemblies arranged on both sides of the top of the base 2, for lifting the battery tray for airtight testing.

[0027] Among them, reference Figure 1-Figure 3 Filling plates 102 are provided on both sides of the top of the inspection tooling table 1, and multiple plug holes are opened on both sides of the bottom of the filling plate 102. Limiting columns 201 that are plugged and fixed with the plug holes are installed on both sides of the top of the base 2.

[0028] When installing the battery pack, first install the filling plate 102 on both sides of the top of the inspection workbench 1, align the sockets on both sides of the bottom of the filling plate 102 with the limit columns 201 on both sides of the top of the base 2, so that the filling plate 102 and the inspection workbench 1 are fitted together, and screw holes are opened at the four corners of the top of the filling plate 102, and bolts are screwed into the screw holes and threadedly connected with the corresponding screw holes on the inspection workbench 1 to increase the stability of the installation of the filling plate 102. After the filling plate 102 is installed on the inspection workbench 1, the positioning holes 101 on both sides of the middle part of the top of the inspection workbench 1 will not be blocked. The filling plate 102 is made of polymer composite material, which is a hard and soft composite material. When the battery tray is placed on the inspection workbench 1, the filling plate 102 will provide a soft layer protection for the battery tray to avoid friction damage to the battery tray.

[0029] When the battery tray is located on the filling plate 102, the installation holes on both sides of the bottom of the battery tray are opposite to the positioning holes 101 on both sides of the middle of the top of the inspection tooling table 1. After the battery tray is placed, the inspection tooling table 1 is used in conjunction with the installation production line. There is an installation robot on the installation production line. The installation robot can grab the battery pack and place it in the battery slot inside the battery tray, and arrange and install multiple battery packs in the battery slot. After the battery pack is installed, since the positioning hole 101 passes through the bottom of the inspection tooling table 1 and the base 2, the rivet nut can be inserted into the installation hole at the bottom of the battery tray from the bottom of the positioning hole 101. The rivet nut increases the connection strength between the battery tray and the battery pack to ensure the stability and safety of the battery pack.

[0030] Installation of production lines and installation of robots are mature technical means commonly used in the field of battery pack installation, so the installation of production lines and installation of robots will not be elaborated in this application.

[0031] Among them, reference Figure 2 , Figure 3 and Figure 6 Universal wheels 202 are respectively installed at the four corners of the bottom of the base 2, and lifting cylinders 203 are respectively installed on the four sides of the bottom of the base 2. A lifting rod 204 is provided at the bottom of the lifting cylinder 203, and a fixed block 205 is fixedly installed at the bottom of the lifting rod 204.

[0032] After the battery tray is placed on the inspection workbench 1, the inspection workbench 1 can be moved to the side of the installation production line through the universal wheels 202 at the four corners of the bottom of the base 2, so that the inspection workbench 1 is located on one side of the installation robot, which is convenient for the installation robot to install the grabbed battery pack inside the battery tray. When the inspection workbench 1 is placed, the lifting cylinder 203 is started to drive the lifting rod 204 to move downward, and the lifting rod 204 drives the fixing block 205 to move downward and contact the ground, thereby supporting the inspection workbench 1, so that the universal wheels 202 leave the ground, allowing the inspection workbench 1 to be placed firmly, and the inspection workbench 1 can also be supported at a certain height, so that the rivet nut can be inserted into the installation hole at the bottom of the battery tray from the bottom of the positioning hole 101, and then the battery tray and the battery pack are installed and fixed by the rivet nut.

[0033] Among them, reference Figure 1 , Figure 4 and Figure 5 The clamping assembly includes: a clamping cylinder 3 installed on four sides of the top of the base 2, a telescopic rod a301 arranged on the top of the clamping cylinder 3, a fixing frame 302 installed on the top of the telescopic rod a301, and clamping blocks 303 installed on both sides of the bottom of the fixing frame 302.

[0034] After placing the battery tray on the inspection workbench 1, start the clamping cylinder 3 to drive the telescopic rod a301 to move downward, so that the telescopic rod a301 drives the fixing frame 302 and the clamping block 303 to move downward, and the clamping block 303 is clamped on the four sides of the top of the battery tray to fix the battery tray on the inspection workbench 1, thereby improving the stability of the placement of the battery tray and preventing the battery tray from shifting during the installation of the battery pack, thereby avoiding affecting the installation of the battery pack.

[0035] Among them, reference Figure 1 and Figure 7 Three support columns 5 are installed on one side of the top of the base 2, and a blocking cylinder 501 is installed on the top of the three support columns 5. A telescopic rod c502 is provided at the outer end of the blocking cylinder 501, and a blocking block 503 is installed at one end of the telescopic rod c502.

[0036] When the installation robot grabs the battery pack and places it inside the battery tray, a slight thrust will be generated on the battery tray during installation. At this time, the sealing cylinder 501 is started to drive the telescopic rod c502 to move inwardly of the inspection workbench 1, so that the telescopic rod c502 pushes the blocking block 503 to move toward the battery tray. The blocking block 503 supports one side of the outer end of the battery tray in the same direction as the thrust generated during installation, thereby supporting the battery tray, further preventing the battery tray from shifting, and increasing the firmness of the battery tray.

[0037] Example 2

[0038] Based on Example 1, Figure 3 , Figure 5 and Figure 6 The lifting assembly includes: a lifting cylinder 4 installed on both sides of the bottom of the base 2, through holes 401 opened on both sides of the top of the base 2, a telescopic rod b402 arranged on the top of the lifting cylinder 4, the telescopic rod b402 passes through the through hole 401 and extends to the top of the base 2, and a top block 403 installed on the top of the telescopic rod b402.

[0039] After the battery pack is installed inside the battery tray on the inspection workbench 1, it is necessary to perform an airtight test on the rivet nuts at the bottom of the battery tray. At this time, start the sealing cylinder 501 to drive the telescopic rod c502 to retract, so that the telescopic rod c502 drives the blocking block 503 to move away from the outer end of the battery tray, and releases the limit on the outer end of the battery tray. Then start the clamping cylinder 3 to drive the telescopic rod a301 to move upward, so that the telescopic rod a301 drives the fixing frame 302 and the clamping block 303 to move upward, and the clamping block 303 moves away from the four sides of the top of the battery tray, and releases the limit on the top of the battery tray. After the battery tray is placed on the inspection workbench 1, its bottom two sides are placed in contact with the top block 403, and then start The lifting cylinder 4 drives the telescopic rod b402 to move upward, so that the telescopic rod b402 pushes the top block 403 to move upward, and then lifts the battery tray from the inspection workbench 1. When pushing the battery tray upward, its top contacts the clamping block 303, and the battery tray is clamped by the clamping block 303 and the top block 403, so that the battery tray is suspended on the inspection workbench 1, and the rivet nut at the bottom of the battery tray is moved out of the positioning hole 101 to the top of the inspection workbench 1, so that the rivet nut is exposed, which is convenient for lifting the battery tray to perform airtightness detection on the rivet nut at the bottom, thereby achieving the purpose of saving time and labor, and improving the work efficiency of airtightness detection of the rivet nut at the bottom of the battery tray.

[0040] An airtightness detection device is provided on one side of the control chassis 6. The airtightness detection device consists of a detection instrument, a detection tube and a detection air nozzle. The detection air nozzle is covered on the outside of the rivet nut. If the rivet nut leaks, the leaked gas enters the detection tube from the detection air nozzle and is discharged to the detection instrument through the detection tube. As the leaked gas increases, the air pressure in the detection tube increases, and the air pressure value can be detected on the detection instrument. On the contrary, when the rivet nut is not leaking, there is no air pressure value displayed on the detection instrument, indicating that there is no leakage at the rivet nut.

[0041] Among them, reference Figure 1 , Figure 3 and Figure 5 A plurality of control boxes 6 are installed on one side of the outer end of the base 2 , and the plurality of control boxes 6 are all located at the bottom of the blocking cylinder 501 .

[0042] When the lifting cylinder 203, the clamping cylinder 3, the lifting cylinder 4 and the blocking cylinder 5 are in use, they are electrically connected to the multiple control boxes 6 through electric wires, and the multiple control boxes 6 are installed with power cords and plugs on the outside, which are inserted into the external plug board, so that the multiple control boxes 6, the lifting cylinder 203, the clamping cylinder 3, the lifting cylinder 4 and the blocking cylinder 5 can be powered on and used, and the lifting cylinder 203, the clamping cylinder 3, the lifting cylinder 4 and the blocking cylinder 5 can be started and closed respectively by the multiple control boxes 6, and the control procedures involved in the utility model can be implemented by technical personnel in this field according to the same or similar principles in the prior art, and this part is not the innovation of the utility model.

[0043] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0044] The above is a detailed introduction to an airtight detection fixture for facilitating the inspection of workpieces provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An airtight detection fixture for checking a workpiece, characterized in that: include: Inspection tooling table (1); Positioning holes (101) are provided on both sides of the middle portion of the top end of the detection tooling platform (1); A base (2) installed at the bottom of the detection tooling platform (1); Clamping components arranged on four sides of the top of the base (2), used for clamping a battery tray placed on the top of the testing workbench (1); Lifting components arranged on both sides of the top of the base (2) are used to lift the battery tray for airtightness testing.

2. The airtightness detection fixture for facilitating inspection of workpieces according to claim 1 is characterized in that: The clamping assembly comprises: Clamping cylinders (3) installed on four sides of the top of the base (2); A telescopic rod a (301) disposed on the top of the clamping cylinder (3); A fixing frame (302) installed on the top of the telescopic rod a (301); Clamping blocks (303) are installed on both sides of the bottom of the fixing frame (302).

3. The airtightness detection fixture for checking workpieces according to claim 1 is characterized in that: The lifting assembly comprises: Lifting cylinders (4) installed on both sides of the bottom of the base (2); Through holes (401) are provided on both sides of the top of the base (2); A telescopic rod b (402) disposed on the top of the lifting cylinder (4), the telescopic rod b (402) passing through the through hole (401) and extending to the top of the base (2); A top block (403) is installed on the top of the telescopic rod b (402).

4. The airtightness detection fixture for facilitating inspection of workpieces according to claim 1 is characterized in that: Filling plates (102) are provided on both sides of the top of the inspection tooling platform (1), a plurality of plug holes are provided on both sides of the bottom of the filling plate (102), and limiting columns (201) are installed on both sides of the top of the base (2) and are plugged and fixed to the plug holes.

5. The airtightness detection fixture for facilitating inspection of workpieces according to claim 1 is characterized in that: Universal wheels (202) are respectively installed at the four corners of the bottom of the base (2), and lifting cylinders (203) are respectively installed on the four sides of the bottom of the base (2). A lifting rod (204) is provided at the bottom of the lifting cylinder (203), and a fixing block (205) is fixedly installed at the bottom of the lifting rod (204).

6. The airtightness detection fixture for facilitating inspection of workpieces according to claim 1 is characterized in that: Three support columns (5) are installed on one side of the top of the base (2), and a blocking cylinder (501) is installed on the top of each of the three support columns (5). A telescopic rod c (502) is provided at the outer end of the blocking cylinder (501), and a blocking block (503) is installed at one end of the telescopic rod c (502).

7. The airtightness detection fixture for facilitating inspection of workpieces according to claim 6 is characterized in that: A plurality of control boxes (6) are installed on one side of the outer end of the base (2), and the plurality of control boxes (6) are all located at the bottom of the blocking cylinder (501).

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