Rapid die changing device for air tightness detection
By designing a quick mold change device for airtight detection, the positioning pin and pushing mechanism are used to achieve rapid fixing and replacement of sealed tooling. Combining the sealing baffle, sliding block and protective tube, it solves the cumbersome and complicated replacement of fixed flat pipe joints in the prior art. The problem of unsatisfactory sealing effect achieves efficient and convenient air-tight detection.
Patent Information
- Application Number
- CN202420156892.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-23
AI Technical Summary
The existing airtight detection devices are complicated when replacing fixed flat pipe joints, and the sealing effect is not ideal, making it difficult to adapt to the differences in the size and structure of steel pipes of different vehicle models, resulting in inconvenient detection.
A fast mold change device for airtight detection is designed, including a base, a push-lift mechanism and a fixing mechanism. The fast fixing and replacement of the sealing tooling is achieved through the positioning pin and push-lift mechanism, and the sealing baffle, sliding block, connecting block and The protective pipe improves the sealing effect and ensures the sealing of different types of steel pipes.
It realizes rapid replacement of different types of sealed tooling, improves the sealing effect and simplicity of airtight detection, ensures no leakage during high-pressure detection, and reduces the error and tilt risk during replacement.
Smart Images
Figure CN222186234U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of airtight detection, in particular to an airtight detection rapid mold changing device. Background Art
[0002] Pipe fittings and connectors for water supply, oil supply, gas supply, etc. are mostly cast, threaded, and (cold) hot stamping. Pipe fittings need to be tested for air tightness before leaving the factory to prevent leakage, especially in the air tightness test of automotive steel braided pipes. The size and structure of steel braided pipes equipped on different vehicle models are inconsistent, resulting in the need to purchase multiple testing instruments during testing or the inconvenience of replacing the testing instruments.
[0003] At present, a Chinese patent application with announcement number CN207991762U and announcement date of October 19, 2018 proposes a simple pipe fitting airtight detector, including: a container, a floating plate, an iron plate, a fixed seat, a first rubber sheet, a second rubber sheet, a first sliding seat, a longitudinal quick clamp, a screw, and a longitudinal slide groove; the container is filled with water; the floating plate floats on the water surface; the iron plate is placed on the floating plate, a fixed seat is welded on the iron plate, and a first rubber sheet is pasted on the fixed seat; a gas nozzle mounting hole is provided in the fixed seat, and the gas nozzle mounting hole passes through the fixed seat and the first rubber sheet; a longitudinal quick clamp is provided opposite to the first rubber sheet, and a longitudinal slide groove is opened on the iron plate below the longitudinal quick clamp; the longitudinal quick clamp is installed on the longitudinal slide groove by a screw, a first sliding seat is welded on the telescopic rod of the longitudinal quick clamp, and a second rubber sheet is bonded to the first sliding seat; the present invention is a simple pipe fitting airtight detector, which uses a rubber sheet to seal both ends of the pipe fitting by the advancement of the quick clamp, and uses low-pressure air and water to detect whether the pipe fitting is leaking.
[0004] With regard to the above-mentioned related technologies, the inventors believe that the constant pressure tooling clamps the joints of the steel braided pipes, connects the fixed pipes to the air-tight press, achieves a sealing effect, pressurizes to the required pressure, and maintains the pressure for a specified time, thereby verifying whether the product's air tightness is qualified. In the above process, the steps for replacing the fixed flat pipe joints are too cumbersome, and the sealing effect after fixation may not be ideal. Utility Model Content
[0005] In order to facilitate the rapid replacement of detection tooling, the utility model provides an airtight detection rapid mold changing device.
[0006] The utility model provides a quick mold changing device for airtight detection, which adopts the following technical solutions:
[0007] A quick mold-changing device for airtight detection comprises a base, a pushing mechanism and a fixing mechanism, wherein the pushing mechanism is mounted on the lower end of the base, the fixing mechanism comprises a mounting seat, a positioning pin, a sealing tool and a positioning assembly, the mounting seat is mounted on the pushing mechanism, the mounting seat is slidably matched with the base, the positioning pin is mounted on the mounting seat, a mounting groove is provided on the mounting seat, the sealing tool is mounted on the mounting seat through the positioning pin, the positioning assembly comprises a positioning seat and a joint, the positioning seat is fixedly mounted on the upper end of the base, a positioning groove is provided on the positioning seat, and the joint is fixed in the positioning groove of the positioning seat by snapping.
[0008] By adopting the above technical solution, when it is necessary to perform an air tightness test on the sealing tool, the sealing tool is fixed by the positioning pin, and then the lifting mechanism pushes up the mounting seat to make the sealing tool abut against the joint of the steel braided pipe on the positioning seat, so that the sealing tool and the steel braided pipe joint are clamped to complete the rapid sealing, so that they are in close contact and achieve the sealing effect, so that the steel braided pipe with an internal thread joint will not leak at the end during the high-pressure air tightness test. At the same time, the sealing tool is fixed by the positioning pin, and different types of sealing tools can be quickly replaced by inserting and removing the positioning pin, and the operation is simpler and more convenient.
[0009] Optionally, the sealing tooling includes a sealing seat, a sealing baffle, a sealing tube, a sliding block, a connecting block and a connecting head, the sealing seat is fixed in the mounting groove of the mounting seat by a positioning pin, the sealing baffle is installed on the end of the sealing seat away from the positioning pin, the sealing tube is installed on the sealing baffle, the sliding block is slidably fitted in the sealing tube, the connecting block is installed on the sliding block, and the connecting head is installed on the connecting block.
[0010] By adopting the above technical scheme, the sealing tooling is fixed and replaced on the mounting seat through the sealing seat and the positioning pin. The sealing baffle is used to limit the position during the replacement of the sealing tooling, thereby improving the accuracy of fixation and replacement. The steel braided pipe joint is abutted against the connecting block, and the connecting head is inserted into the steel flat steel. The two together achieve sealing. At the same time, the sliding block slides in the sealing tube to improve the sealing effect when the pressure is increased.
[0011] Optionally, the sealing tool further includes a locking nut, and the locking nut is mounted on the sealing tube.
[0012] By adopting the above technical solution, the sealing tube and the sliding block are further clamped, thereby further improving the sealing effect.
[0013] Optionally, the sealing tool further includes a protective tube, and the protective tube is mounted on the locking nut.
[0014] By adopting the above technical solution, the protective tube can provide fixed support to the abutting part of the sealed steel braided pipe joint when it is squeezed and abutted against the connecting block and the connecting head, thereby reducing the possibility of tilting of the connecting block and the connecting head due to excessive extrusion, and further improving the sealing effect.
[0015] Optionally, the fixing mechanism also includes a positioning screw, a positioning cylinder and a positioning cap, the positioning screw is installed on the mounting seat, the positioning pin is slidably fitted on the positioning screw, the positioning cylinder is sleeved on the positioning screw, the positioning cap is installed on the positioning cylinder, and one end of the positioning screw is installed on the positioning cylinder.
[0016] By adopting the above technical solution, it is possible to insert and remove the locating pin from the mounting seat by plugging and pulling out the locating cap when replacing the sealing tooling. At the same time, the inner wall of the locating cylinder and the outer side of the locating screw cooperate and contact to position the locating pin, while reducing the possibility of the locating pin sliding off the mounting seat.
[0017] In summary, the present invention includes at least one of the following beneficial technical effects:
[0018] 1. When it is necessary to test the air tightness of the sealing tool, fix the sealing tool by the positioning pin, and then push the mounting seat up with the lifting mechanism to make the sealing tool abut against the joint of the steel braided pipe on the positioning seat, so that the sealing tool and the steel braided pipe joint are clamped to complete the rapid sealing, so that they are in close contact and achieve the sealing effect, so that the steel braided pipe with an internal thread joint will not leak at the end during the high-pressure air tightness test. At the same time, the sealing tool is fixed by the positioning pin, and different types of sealing tools can be quickly replaced by inserting and removing the positioning pin, which makes the operation simpler and more convenient.
[0019] 2. The sealing baffle realizes the limiting function during the replacement of the sealing tooling, which improves the accuracy of fixed replacement. The steel braided pipe joint abuts against the connecting block, and the connecting head is inserted into the steel flat steel. The two together realize sealing. At the same time, the sliding block slides in the sealing tube to improve the sealing effect when the pressure is increased.
[0020] 3. The protective tube can provide fixed support for the abutting part of the sealed steel braided pipe joint when it is squeezed and abutted against the connecting block and the connecting head, thereby reducing the possibility of tilting of the connecting block and the connecting head when excessively squeezed, and further improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0022] Figure 2 yes Figure 1 Schematic diagram of the structure of the fixed mechanism part.
[0023] Explanation of the reference numerals: 100, base; 200, lifting mechanism; 300, fixing mechanism; 301, mounting seat; 302, positioning pin; 303, positioning screw; 304, positioning cylinder; 305, positioning cap; 306, mounting groove; 310, sealing tool; 311, sealing seat; 312, sealing baffle; 313, sealing tube; 314, sliding block; 315, connecting block; 316, connecting head; 317, locking nut; 318, protective tube; 320, positioning assembly; 321, positioning seat; 322, joint; 323, positioning groove. DETAILED DESCRIPTION
[0024] The following is combined with Figure 1-Figure 2 The utility model is described in further detail.
[0025] The utility model discloses a quick mold changing device for airtight detection. Figure 1 and Figure 2 A quick mold-changing device for airtight detection mainly includes a base 100, a lifting mechanism 200 and a fixing mechanism 300. The lifting mechanism 200 is installed at the lower end of the base 100, and the fixing mechanism 300 is installed at the upper end of the base 100. When the detection tooling needs to be replaced, it can be quickly replaced through the fixing mechanism 300, thereby realizing rapid positioning and installation, and at the same time having a good sealing effect. Different types of sealing tooling 310 can be quickly replaced by inserting and removing the positioning pin 302, and the operation is simpler and more convenient.
[0026] Reference Figure 1 and Figure 2 The fixing mechanism 300 includes a mounting seat 301, a positioning pin 302, a positioning screw 303, a positioning cylinder 304, a positioning cap 305, a sealing tool 310 and a positioning assembly 320. The mounting seat 301 is mounted on the lifting mechanism 200. The mounting seat 301 is slidably matched with the base 100. The positioning pin 302 is mounted on the mounting seat 301. The mounting seat 301 is provided with a mounting groove 306. The sealing tool 310 is mounted on the mounting seat 301 through the positioning pin 302. The positioning assembly 320 includes a positioning seat 3 21 and a joint 322, the positioning seat 321 is fixedly mounted on the upper end of the base 100, the positioning seat 321 is provided with a positioning groove 323, the joint 322 is fixed in the positioning groove 323 of the positioning seat 321 by means of a snap connection, the positioning screw 303 is mounted on the mounting seat 301, the positioning pin 302 is slidably fitted on the positioning screw 303, the positioning cylinder 304 is sleeved on the positioning screw 303, the positioning cap 305 is mounted on the positioning cylinder 304, and one end of the positioning screw 303 is mounted on the positioning cylinder 304;
[0027] Reference Figure 1 and Figure 2The sealing tool 310 includes a sealing seat 311, a sealing baffle 312, a sealing tube 313, a sliding block 314, a connecting block 315, a connecting head 316, a locking nut 317 and a protective tube 318. The sealing seat 311 is fixed in the mounting groove 306 of the mounting seat 301 through a locating pin 302. The sealing baffle 312 is installed on the end of the sealing seat 311 away from the locating pin 302. The sealing tube 313 is installed on the sealing baffle 312. The sliding block 314 is slidably fitted in the sealing tube 313. The connecting block 315 is installed on the sliding block 314. The connecting head 316 is installed on the connecting block 315. The locking nut 317 is installed on the sealing tube 313. The protective tube 318 is installed on the locking nut 317.
[0028] The implementation principle of the airtight detection quick mold changing device of the utility model embodiment is:
[0029] When it is necessary to test the air tightness of the sealing tool 310, the sealing tool 310 is fixed by the positioning pin 302, and then the lifting mechanism 200 pushes up the mounting seat 301, so that the sealing tool 310 abuts against the joint 322 of the steel braided pipe on the positioning seat 321, so that the sealing tool 310 and the steel braided pipe joint 322 are clamped to complete the rapid sealing, so that they are in close contact and achieve a sealing effect, so that the steel braided pipe with the internal thread joint 322 will not leak at the end when performing high-pressure air tightness testing. At the same time, the sealing tool 310 is fixed by the positioning pin 302, and the sealing tool 310 is inserted and moved. The locating pin 302 can be used to quickly replace different types of sealing tools 310, which makes the operation simpler and more convenient; the sealing tool 310 is fixed and replaced on the mounting seat 301 through the sealing seat 311 and the locating pin 302, and the sealing baffle 312 is used to limit the position during the replacement of the sealing tool 310, thereby improving the accuracy of fixation and replacement, the steel braided pipe joint 322 is abutted against the connecting block 315, and the connecting head 316 is inserted into the steel flat steel, and the two together achieve sealing, and the sliding block 314 slides in the sealing tube 313 to improve the sealing effect when the pressure is increased.
[0030] By setting the locking nut 317, the sealing tube 313 and the sliding block 314 are further clamped, thereby further improving the sealing effect; by the protective tube 318, when the sealing steel braided pipe joint 322 is squeezed and abutted with the connecting block 315 and the connecting head 316, the abutting part thereof is fixedly supported, thereby reducing the possibility of the connecting block 315 and the connecting head 316 being tilted when excessively squeezed, thereby further improving the sealing effect; by setting the positioning screw 303, the positioning cylinder 304 and the positioning cap 305, when replacing the sealing tool 310, the positioning pin 302 can be inserted and pulled out of the mounting seat 301 by plugging and pulling out the positioning cap 305, and at the same time, the inner wall of the positioning cylinder 304 cooperates and contacts with the outer side of the positioning screw 303, thereby playing the function of positioning the positioning pin 302, and at the same time reducing the possibility of the positioning pin 302 sliding off the mounting seat 301.
[0031] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A quick mold change device for airtight detection, characterized in that: The invention comprises a base (100), a lifting mechanism (200) and a fixing mechanism (300), wherein the lifting mechanism (200) is installed at the lower end of the base (100), the fixing mechanism (300) comprises a mounting seat (301), a positioning pin (302), a sealing tool (310) and a positioning assembly (320), the mounting seat (301) is installed on the lifting mechanism (200), the mounting seat (301) is slidably matched with the base (100), and the positioning pin (302) is installed on the mounting seat (301). The mounting seat (301) is provided with a mounting groove (306), the sealing tool (310) is installed on the mounting seat (301) through a positioning pin (302), the positioning assembly (320) includes a positioning seat (321) and a joint (322), the positioning seat (321) is fixedly mounted on the upper end of the base (100), the positioning seat (321) is provided with a positioning groove (323), and the joint (322) is fixed in the positioning groove (323) of the positioning seat (321) by means of a snap connection.
2. The airtight detection rapid mold change device according to claim 1, characterized in that: The sealing tool (310) comprises a sealing seat (311), a sealing baffle (312), a sealing tube (313), a sliding block (314), a connecting block (315) and a connecting head (316); the sealing seat (311) is fixed in a mounting groove (306) of the mounting seat (301) through a positioning pin (302); the sealing baffle (312) is mounted on an end of the sealing seat (311) away from the positioning pin (302); the sealing tube (313) is mounted on the sealing baffle (312); the sliding block (314) is slidably fitted in the sealing tube (313); the connecting block (315) is mounted on the sliding block (314); and the connecting head (316) is mounted on the connecting block (315).
3. The airtight detection rapid mold change device according to claim 2, characterized in that: The sealing tool (310) further comprises a locking nut (317), wherein the locking nut (317) is mounted on the sealing tube (313).
4. The airtight detection rapid mold change device according to claim 3, characterized in that: The sealing tool (310) further comprises a protection tube (318), wherein the protection tube (318) is mounted on the locking nut (317).
5. The airtight detection rapid mold change device according to claim 1, characterized in that: The fixing mechanism (300) further comprises a positioning screw (303), a positioning cylinder (304) and a positioning cap (305); the positioning screw (303) is mounted on the mounting seat (301); the positioning pin (302) is slidably fitted on the positioning screw (303); the positioning cylinder (304) is sleeved on the positioning screw (303); the positioning cap (305) is mounted on the positioning cylinder (304); and one end of the positioning screw (303) is mounted on the positioning cylinder (304).