Rapid workpiece positioning device for pressure testing machine

By designing a fixing and limiting mechanism on the pressure testing machine, the workpiece can be quickly positioned and uniformly clamped, solving the problem of slow positioning speed in the existing technology and improving the testing efficiency and accuracy.

CN223976808UActive Publication Date: 2026-03-06FREEWON CHINA CO LTD
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Patent Information

Application Number
CN202520665536.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-06
Estimated Expiration
2035-04-10

AI Technical Summary

Technical Problem

Existing pressure testing machines are slow in the workpiece positioning and fixing process, resulting in low testing efficiency.

Method used

The design employs a combination of fixing and limiting mechanisms. By manually pushing the pressing block, the connecting column and clamping block are moved. The spring force is used to achieve quick clamping and fixing. The pressure plate and L-shaped plate apply uniform pressure to the surface of the workpiece to ensure that the workpiece is not easily deformed or damaged.

Benefits of technology

It shortens the time for workpiece positioning and fixing, improves inspection efficiency, and ensures the accuracy and precision of the inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pressure testing machines, in particular to a quick workpiece positioning device for a pressure testing machine, which comprises a frame, an adjusting component and a detecting component fixedly mounted on the top surface of the frame, a concave plate fixedly mounted on the side surface of the adjusting component, and a fixing mechanism arranged above the frame. The fixing mechanism comprises a clamping block located in the concave plate, a connecting column is fixedly installed on the top face of the clamping block, a pressing block and a limiting mechanism are fixedly installed at the upper end of the connecting column, and the limiting mechanism is arranged in the concave plate. A pressing block is manually pushed to drive a connecting column and a clamping block to move downwards to position and fix a workpiece, at the moment, the pressing block pushes a clamping block and an arc-shaped block to move and extrude a spring, and when the clamping block clamps the workpiece, under the elastic force action of the spring, the arc-shaped block pushes the clamping block to be connected with a clamping groove in a clamped mode, so that the pressing block is fixed; the time required by the whole operation process is short, so that the efficiency of the whole detection progress is improved.
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Description

Technical Field

[0001] This utility model relates to the field of pressure testing machine technology, specifically to a workpiece rapid positioning device for a pressure testing machine. Background Technology

[0002] Currently, some electronic products require waterproof performance testing during manufacturing, which can be characterized by airtightness. A common airtightness testing method is the pressure drop test. After clamping and fixing the product, a certain pressure of gas is injected into the sealed or semi-sealed workpiece, and the pressure drop is detected. The pressure change is then observed and calculated to determine if the product leaks.

[0003] Existing pressure testing machines require the workpiece to be positioned and fixed before pressure testing. Fixing the workpiece requires manual rotation of the handle and threaded rod to make the clamping plate contact the workpiece surface and firmly fix the workpiece in the designated position. During the entire operation, the speed of manually rotating the handle and threaded rod to move the clamping plate is relatively slow, and the entire positioning and fixing process takes a long time, thus delaying the progress of the entire test and reducing the efficiency of the test. Utility Model Content

[0004] The purpose of this invention is to provide a rapid workpiece positioning device for a pressure testing machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A workpiece rapid positioning device for a pressure testing machine includes: a frame, an adjustment component and a detection component fixedly mounted on the top surface of the frame, a concave plate fixedly mounted on the side of the adjustment component, and further includes:

[0007] The fixing mechanism is located above the frame. The fixing mechanism includes a clamping block located inside the concave plate. A connecting column is fixedly installed on the top surface of the clamping block, and a pressing block is fixedly installed on the upper end of the connecting column. The fixing mechanism is used to fix the product.

[0008] The limiting mechanism is located inside the concave plate. The limiting mechanism includes L-shaped plates located on both sides of the clamping block. Pressure plates are fixedly installed on the sides of the two L-shaped plates close to each other. The limiting mechanism is used to limit the side of the product.

[0009] Preferably, the top surface of the concave plate has a through hole, the outer wall of the connecting column is slidably connected to the inner wall of the through hole, and an arc-shaped frame is slidably provided on one side of the outer wall of the pressing block.

[0010] Preferably, two support columns are fixedly installed on the bottom surface of the arc-shaped frame, and the lower ends of the two support columns are fixedly connected to the top surface of the concave plate.

[0011] Preferably, two arc-shaped blocks are slidably installed on the inner wall of the arc-shaped frame. At the far ends of the two arc-shaped blocks, a locking block is fixedly installed. Two locking grooves are opened on the side of the pressing block. One end of the two locking blocks slides through the inner wall of the arc-shaped frame and extends to the outer wall of the arc-shaped frame. The two locking blocks are respectively engaged with the two locking grooves.

[0012] Preferably, two arc-shaped rods are slidably installed through the sides of the two arc-shaped blocks. The two ends of the two arc-shaped rods are fixedly connected to the inner walls of the two ends of the arc-shaped frame. Springs are slidably installed on the outer walls of the two arc-shaped rods. The two ends of the two springs are fixedly connected to the sides of the two arc-shaped blocks close to each other. Adjustment blocks are fixedly installed on the sides of the two arc-shaped blocks.

[0013] Preferably, two connecting plates are fixedly installed on the outer wall of the clamping block, and the other side of the two connecting plates is fixedly connected to the outer wall of the two pressure plates respectively.

[0014] Preferably, limit rods are fixedly installed on the top surfaces of the two pressure plates, and the upper ends of the two limit rods slide through the inner wall of the upper end of the concave plate and extend to the top of the concave plate.

[0015] Preferably, circular plates are fixedly installed on the upper ends of the two limiting rods, and elastic elements are slidably installed on the outer walls of the two limiting rods. The two ends of the two elastic elements are fixedly connected to the bottom surfaces of the two circular plates and the top surfaces of the concave plates, respectively.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention allows for the positioning and fixing of a workpiece by manually pushing a pressing block, which moves the connecting column and clamping block downwards. At this time, the pressing block pushes the locking block and the arc-shaped block to move and compress the spring. When the clamping block clamps the workpiece, the arc-shaped block pushes the locking block to engage with the slot under the elastic force of the spring, thereby fixing the pressing block. The entire operation process requires less time, thus improving the efficiency of the entire inspection process.

[0018] By using pressure plates and clamping blocks, the pressure applied to the workpiece surface is made more uniform, making it less likely for the workpiece to deform or be damaged due to uneven pressure. The through grooves and L-shaped plates are used to position and limit the workpiece on both sides, ensuring that the workpiece is not prone to displacement or shaking during the inspection process, which would affect the accuracy of the inspection. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is an exploded three-dimensional view of the arc-shaped block of this utility model;

[0021] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic cross-sectional view of the arc-shaped frame three-dimensional structure of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the L-shaped plate of this utility model.

[0024] In the picture:

[0025] 1. Frame; 101. Adjustment assembly; 102. Detection assembly; 103. Concave plate;

[0026] 2. Fixing mechanism; 201. Clamping block; 202. Pressing block; 203. Support column; 204. Arc frame; 205. Arc block; 206. Locking block; 207. Locking groove; 208. Arc rod; 209. Spring; 210. Adjusting block; 211. Connecting column;

[0027] 3. Limiting mechanism; 301. Through groove; 302. Connecting plate; 303. Pressure plate; 304. L-shaped plate; 305. Limiting rod; 306. Round plate; 307. Elastic element. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] like Figures 1-5 As shown, this application provides a workpiece rapid positioning device for a pressure testing machine, including: a frame 1, an adjustment component 101 and a detection component 102 fixedly mounted on the top surface of the frame 1, a concave plate 103 fixedly mounted on the side of the adjustment component 101, and further including:

[0031] The fixing mechanism 2 is located above the frame 1. The fixing mechanism 2 includes a clamping block 201 located inside the concave plate 103. A connecting column 211 is fixedly installed on the top surface of the clamping block 201. A pressing block 202 is fixedly installed on the upper end of the connecting column 211. The fixing mechanism 2 is used to fix the product.

[0032] Specifically, such as Figures 1-5 As shown, a through hole is provided on the top surface of the concave plate 103, the outer wall of the connecting column 211 is slidably connected to the inner wall of the through hole, and an arc frame 204 is slidably provided on one side of the outer wall of the pressing block 202.

[0033] In this embodiment: the pressing block 202 drives the connecting column 211 and the clamping block 201 to move, thereby positioning and fixing the workpiece, and the workpiece has a fixed size.

[0034] Specifically, such as Figures 1-5 As shown, two support columns 203 are fixedly installed on the bottom surface of the arc frame 204, and the lower ends of the two support columns 203 are fixedly connected to the top surface of the concave plate 103.

[0035] In this embodiment, the arc-shaped frame 204 is installed and fixed by the support column 203, making the arc-shaped frame 204 more stable.

[0036] Specifically, such as Figures 1-5 As shown, two arc-shaped blocks 205 are slidably installed on the inner wall of the arc-shaped frame 204. At the far ends of the two arc-shaped blocks 205, locking blocks 206 are fixedly installed. Two slots 207 are opened on the side of the pressing block 202. One end of the two locking blocks 206 slides through the inner wall of the arc-shaped frame 204 and extends to the outer wall of the arc-shaped frame 204. The two locking blocks 206 are respectively engaged with the two slots 207.

[0037] In this embodiment: the arc-shaped frame 204 limits the arc-shaped block 205, and the locking block 206 engages with the locking groove 207, thereby fixing the pressing block 202.

[0038] Specifically, such as Figures 1-5 As shown, two arc-shaped rods 208 are slidably installed through the sides of the two arc-shaped blocks 205. The two ends of the two arc-shaped rods 208 are fixedly connected to the inner walls of the two ends of the arc-shaped frame 204. Springs 209 are slidably installed on the outer walls of the two arc-shaped rods 208 respectively. The two ends of the two springs 209 are fixedly connected to the sides of the two arc-shaped blocks 205 close to each other. Adjusting blocks 210 are fixedly installed on the sides of the two arc-shaped blocks 205 respectively.

[0039] In this embodiment: the arc-shaped rod 208 limits the arc-shaped block 205, and the spring 209 applies elastic force to the arc-shaped block 205.

[0040] The limiting mechanism 3 is located inside the concave plate 103. The limiting mechanism 3 includes L-shaped plates 304 located on both sides of the clamping block 201. The two L-shaped plates 304 are close to each other and pressure plates 303 are fixedly installed on their sides. The limiting mechanism 3 is used to limit the side of the product.

[0041] Specifically, such as Figures 1-5As shown, two connecting plates 302 are fixedly installed on the outer wall of the clamping block 201, and the other side of the two connecting plates 302 is fixedly connected to the outer wall of the two pressure plates 303 respectively.

[0042] In this embodiment, the pressure plate 303 and the clamping block 201 work together to apply more uniform pressure to the surface of the workpiece, making the surface structure of the workpiece less prone to deformation or damage.

[0043] Specifically, such as Figures 1-5 As shown, limit rods 305 are fixedly installed on the top surfaces of the two pressure plates 303 respectively, and the upper ends of the two limit rods 305 slide through the inner wall of the upper end of the concave plate 103 and extend to the top of the concave plate 103.

[0044] In this embodiment, the pressure plate 303 is limited by the limiting rod 305, making the movement of the pressure plate 303 more stable.

[0045] Specifically, such as Figures 1-5 As shown, circular plates 306 are fixedly installed on the upper ends of the two limiting rods 305 respectively, and elastic elements 307 are slidably installed on the outer walls of the two limiting rods 305 respectively. The two ends of the elastic elements 307 are fixedly connected to the bottom surface of the two circular plates 306 and the top surface of the concave plate 103 respectively.

[0046] In this embodiment: the elastic element 307 applies elastic force to the circular plate 306, thereby providing an upward thrust to the limiting rod 305 and the pressure plate 303.

[0047] Specifically, the solution is as follows: The workpiece is placed on the inner wall of the concave plate 103. The through groove 301 initially positions the workpiece. Pushing the pressing block 202 causes the support column 203 and clamping block 201 to move downwards. Simultaneously, the clamping block 201, through the connecting plate 302, causes the pressure plate 303 and L-shaped plate 304 to move downwards. The pressure plate 303 and clamping block 201 press and fix the top surface of the workpiece, while the L-shaped plate 304 positions and limits the side surface of the workpiece. At this time, the pressing block 202 pushes the locking block 206 and arc-shaped block 205 to move and compress the spring 209. When the clamping block 201 clamps the workpiece, under the elastic force of the spring 209, the arc-shaped block 206... 05. Push the locking block 206 to engage with the slot 207, thereby fixing the pressing block 202. The entire operation process requires a short time, thus improving the efficiency of the entire inspection process. Then, control the adjustment component 101 to adjust the workpiece, and inspect the workpiece through the inspection component 102. After the inspection is completed, press the adjustment block 210 to move the arc block 205 and the locking block 206. The locking block 206 moves out of the slot 207. Under the elastic force of the elastic element 307, it moves the circular plate 306, the limiting rod 305, the pressure plate 303, the L-shaped plate 304 and the clamping block 201 upward, thereby moving the pressing block 202 upward, and the workpiece can be removed.

[0048] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0049] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A workpiece rapid positioning device for a pressure testing machine, comprising: Rack (1), it is fixedly installed with adjusting assembly (101) and detection assembly (102) on the top surface of rack (1), the side surface of adjusting assembly (101) is fixedly installed with concave plate (103), characterized by further comprising: Fixing mechanism (2), the fixing mechanism (2) is arranged above the rack (1), the fixing mechanism (2) includes clamping block (201) inside the concave plate (103), the top surface of clamping block (201) is fixedly installed with connecting column (211), the upper end of connecting column (211) is fixedly installed with pressing block (202), and the fixing mechanism (2) is used to fix the product; Limiting mechanism (3), the limiting mechanism (3) is arranged inside the concave plate (103), and the limiting mechanism (3) includes L-shaped plate (304) located on both sides of the clamping block (201), the side surface of the two L-shaped plates (304) is fixedly installed with pressing plate (303) respectively, and the limiting mechanism (3) is used to limit the side surface of the product.

2. The workpiece rapid positioning device for a pressure testing machine according to claim 1, wherein The top surface of the concave plate (103) is provided with a through hole, the outer wall of the connecting column (211) is slidably connected with the inner wall of the through hole, and the outer wall of the pressing block (202) is slidably provided with an arc-shaped frame (204).

3. The workpiece rapid positioning device for a pressure testing machine according to claim 2, wherein The bottom surface of the arc-shaped frame (204) is fixedly installed with two support columns (203), and the lower ends of the two support columns (203) are fixedly connected with the top surface of the concave plate (103).

4. The workpiece rapid positioning device for a pressure testing machine according to claim 3, wherein The inner wall of the arc-shaped frame (204) is slidably installed with two arc-shaped blocks (205), and the ends of the two arc-shaped blocks (205) are fixedly installed with clamping blocks (206) respectively, the side surface of the pressing block (202) is provided with two clamping grooves (207), and the one end of the two clamping blocks (206) is slidably penetrated through the inner wall of the arc-shaped frame (204) and extends to the outer wall of the arc-shaped frame (204), and the two clamping blocks (206) are respectively clamped with the two clamping grooves (207).

5. The workpiece rapid positioning device for a pressure testing machine according to claim 4, wherein The side surface of the two arc-shaped blocks (205) is slidably penetrated and installed with two arc-shaped rods (208), and the two ends of the two arc-shaped rods (208) are fixedly connected with the inner walls of the two ends of the arc-shaped frame (204), the outer walls of the two arc-shaped rods (208) are slidably installed with springs (209) respectively, the two ends of the two springs (209) are fixedly connected with the mutually close side surfaces of the two arc-shaped blocks (205) respectively, and the side surfaces of the two arc-shaped blocks (205) are fixedly installed with adjusting blocks (210) respectively.

6. The workpiece rapid positioning device for a pressure testing machine of claim 1, wherein, The outer wall of the clamping block (201) is fixedly installed with two connecting plates (302), and the other side surfaces of the two connecting plates (302) are fixedly connected with the outer walls of the two pressing plates (303) respectively.

7. The workpiece rapid positioning device for a pressure testing machine of claim 6, wherein, The top surfaces of the two pressing plates (303) are fixedly installed with limiting rods (305) respectively, and the upper ends of the two limiting rods (305) are slidably penetrated through the inner walls of the upper ends of the concave plate (103) and extend above the concave plate (103).

8. The workpiece rapid positioning device for a pressure testing machine according to claim 7, wherein Two said limiting rod (305) upper end is fixedly installed with round plate (306) respectively, two said limiting rod (305) outer wall is slidably installed with elastic piece (307) respectively, two said elastic piece (307) both ends are fixedly connected with two round plate (306) bottom surface and concave plate (103) top surface respectively.