Quick-change pneumatic clamping helium detection tool

Abstract

The utility model discloses a quick-change pneumatic clamping helium detection tool which comprises a bottom plate, a plurality of stand columns are vertically arranged at the upper end of the bottom plate, a top plate is installed at the tops of the stand columns, a quick-change base is detachably installed on the upper side of the bottom plate, an air cylinder is installed on the upper side of the top plate, and a clamping device is installed on the air cylinder. An extending rod of the air cylinder extends downwards and is connected with a pressing plate below the top plate, a quick-change pressing block corresponding to the quick-change base is detachably installed at the lower end of the pressing plate, the quick-change base is connected with the bottom plate through at least two first locking bolts, and the quick-change pressing block is connected with the pressing plate through at least two second locking bolts. The quick-change base and the quick-change pressing block can be quickly replaced through the first locking plug pin and the second locking plug pin, quick positioning can be achieved after replacement, and accuracy is high. The helium detection tool can solve the problem that an existing helium detection tool is low in efficiency of product operation and switching.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts detection, in particular to a quick-change pneumatic clamping helium detection tooling. Background Art

[0002] Helium testing is a testing method that involves evacuating the workpiece and filling it with helium at a certain pressure. The workpiece is surrounded by a vacuum box with a certain vacuum requirement, and the vacuum box is connected to the leak detection port of the helium mass spectrometer leak detector. Traditional tooling design is made in the form of imitating the counterpart, which will result in the following two disadvantages:

[0003] 1. The old-fashioned tooling uses screws to fasten the product to achieve the sealing effect, which is inefficient and has the risk of damaging the product installation surface;

[0004] 2. When switching products with old-fashioned tools, it is necessary to switch tools. The process of switching tools is complicated, inefficient, and affects the installation accuracy. Utility Model Content

[0005] The utility model provides a quick-change pneumatic clamping helium inspection tool, which can solve the problems of relatively low efficiency of existing helium inspection tool operation and product switching.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick-change pneumatic clamping helium inspection tool, comprising a base plate, a plurality of columns are vertically arranged on the upper end of the base plate, a top plate is installed on the top of the columns, a quick-change base is detachably installed on the upper side of the base plate, a cylinder is installed on the upper side of the top plate, an extension rod of the cylinder extends downward and is connected to a pressure plate under the top plate, a quick-change pressure block corresponding to the quick-change base is detachably installed on the lower end of the pressure plate, the quick-change base is connected to the base plate by at least two first locking pins, and the quick-change pressure block is connected to the pressure plate by at least two second locking pins, the quick-change base and the quick-change pressure block can be quickly replaced by the first locking pin and the second locking pin, and can be quickly positioned after replacement with high accuracy.

[0007] Preferably, the first locking pin and the second locking pin both include a pin rod body and a plurality of radially retractable elastic beads arranged at one end of the pin rod body, and the elastic beads can limit the pin rod body after it is inserted into the corresponding socket and will not fall out automatically, and the elastic beads can retract automatically when it needs to be pulled out.

[0008] Preferably, a limiting hole is opened on the base plate at a position corresponding to the first locking pin, the first locking pin vertically passes through the quick-change base and is connected to the limiting hole, the elastic bead is engaged with the limiting step in the limiting hole, and the limiting step engagement can realize the engagement of the first locking pin.

[0009] Preferably, at least two positioning pins with holes are vertically provided on the pressure plate, and the positioning pins with holes are inserted into the vertical sockets on the upper end of the quick-change pressure block. The second locking pin is inserted from the lateral sockets on the side wall of the quick-change pressure block and passes through the through holes on the positioning pins with holes for limiting engagement. The quick installation limit between the pressure plate and the quick-change pressure block can be achieved by plugging the second locking pin and the positioning pin with holes.

[0010] Preferably, the quick-change pressure block includes a quick-change locking block and a product pressure block detachably connected to the lower end of the quick-change locking block. The vertical socket and the lateral socket are both arranged on the quick-change locking block. The product pressure block can be replaced as needed. The quick-change locking block and the product pressure block are made of different materials.

[0011] Preferably, a supporting protrusion and a rubber sealing area are provided at the upper end of the quick-change base, an airtight hole is provided in the rubber sealing area, the airtight hole is connected to the pneumatic quick connector connected to the side of the quick-change base, the rubber sealing area can seal the opening on the product to be tested, the supporting protrusion can support the product to be tested, and the pneumatic quick connector is connected to an external air source for helium inspection.

[0012] Preferably, at least two guide posts are provided on the pressing plate, and the guide posts pass through the linear bearings on the top plate upwards, so as to guide the pressing plate to move up and down and prevent the pressing plate from deflecting.

[0013] Preferably, a bottom support corresponding to the column is provided at the upper end of the base plate, and the lower end of the column is connected to the bottom support, and the bottom support can ensure the stability of the installation of the root of the column.

[0014] Preferably, a pull ring is installed at the tail end of the latch rod body to facilitate the insertion and removal operations of the latch rod body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The quick-change base and the quick-change pressure block can be quickly replaced by the first locking pin and the second locking pin, and can be quickly positioned after replacement with high accuracy, which can greatly improve the efficiency of helium inspection of automobile parts and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 This is the main structural diagram of the utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the quick-change base of the utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the quick-change pressing block of the utility model;

[0021] Figure 5 It is a three-dimensional structural diagram of the first locking latch and the second locking latch of the utility model;

[0022] Figure 6 This is a partial cross-sectional structural diagram of the quick-change base installation of the utility model;

[0023] Figure 7 This is a partial cross-sectional structural diagram of the quick-change pressure block installation of the utility model.

[0024] Reference numerals:

[0025] 1. Bottom plate, 11. Guide column, 12. Pressure plate, 13. Pneumatic quick connector, 14. Positioning pin with hole, 15. Limit hole, 2. Top plate, 3. Quick-change base, 31. Support protrusion, 32. Rubber sealing area, 33. Airtight hole, 4. Bottom support, 5. Column, 6. First locking pin, 7. Second locking pin, 71. Pin rod, 72. Pull ring, 73. Elastic convex bead, 8. Quick-change pressure block, 81. Quick-change locking block, 82. Product pressure block, 83. Lateral socket, 84. Vertical socket, 9. Linear bearing, 10. Cylinder. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] like Figure 1-7 As shown, the utility model can solve the problems of low efficiency of existing helium inspection tooling operation and switching products and tooling, and provides the following technical solutions: a quick-change pneumatic clamping helium inspection tooling, comprising a base plate 1, a plurality of columns 5 are vertically arranged on the upper end of the base plate 1, a top plate 2 is installed on the top of the columns 5, a quick-change base 3 is detachably installed on the upper side of the base plate 1, a cylinder 10 is installed on the upper side of the top plate 2, an extension rod of the cylinder 10 extends downward and is connected to a pressure plate 12 below the top plate 2, a quick-change pressure block 8 corresponding to the quick-change base 3 is detachably installed on the lower end of the pressure plate 12, the quick-change base 3 is connected to the base plate 1 by at least two first locking pins 6, and the quick-change pressure block 8 is connected to the pressure plate 12 by at least two second locking pins 7, the quick-change base 3 and the quick-change pressure block 8 can be quickly replaced by the first locking pin 6 and the second locking pin 7, and can be quickly positioned after replacement with high accuracy.

[0028] Specifically, the columns 5 can be arranged at the four top corners of the upper end of the base plate 1, which can provide stable support for the top plate 2. The cylinder 10 is installed in the middle of the top plate 2, and a pneumatic quick connector 13 is also installed on its outer side to facilitate connection and assembly. The quick-change base 3 is used to support the product to be tested, and to form a sealed chamber between the product to be tested and the quick-change base 3 to perform helium inspection to check the internal sealing of the product. The first locking pin 6 and the second locking pin 7 can adopt the same structure, and the length can be adjusted as needed. In order to ensure the stability of the lifting and lowering of the pressure plate 12, at least two guide columns 11 are arranged on the pressure plate 12. The guide columns 11 pass through the linear bearings 9 on the top plate 2 upward, and can guide the lifting and lowering of the pressure plate 12 to prevent the pressure plate 12 from deflecting.

[0029] The upper end of the base plate 1 is provided with a bottom support 4 corresponding to the column 5 , and the lower end of the column 5 is connected to the bottom support 4 , and the bottom support 4 can ensure the stability of the installation of the root of the column 5 .

[0030] In this embodiment, if Figure 5 As shown, as a specific structure of the first locking pin 6 and the second locking pin 7, the first locking pin 6 and the second locking pin 7 both include a pin rod body 71 and a plurality of radially retractable elastic beads 73 arranged at one end of the pin rod body 71. The elastic beads 73 can be used to limit the pin rod body 71 after being inserted into the corresponding insertion hole and will not fall out automatically. When it needs to be pulled out, the elastic beads 73 can retract automatically. A spring or other elastic member (not shown in the figure) can be arranged inside the elastic beads 73. The elastic beads 73 can be a structure symmetrically arranged on both sides of the pin rod body 71. A pull ring 72 is installed at the tail end of the pin rod body 71 to facilitate the insertion and removal of the pin rod body 71.

[0031] As a specific installation structure of the quick-change base 3, Figure 6 As shown, a limiting hole 15 is opened on the base plate 1 at a position corresponding to the first locking pin 6, and the first locking pin 6 vertically passes through the quick-change base 3 and is connected to the limiting hole 15, and the elastic protrusion 73 is engaged with the limiting step in the limiting hole 15, and the limiting step engagement can realize the engagement of the first locking pin 6.

[0032] As a specific installation structure of the quick-change pressure block 8, Figure 7As shown, at least two positioning pins 14 with holes are vertically provided on the pressure plate 12, and the positioning pins 14 with holes are inserted into the vertical sockets 84 on the upper end of the quick-change pressure block 8. The second locking pin 7 is inserted from the lateral sockets 83 on the side wall of the quick-change pressure block 8 and passes through the through holes on the positioning pins 14 with holes for limiting engagement. The fast installation and limiting engagement between the pressure plate 12 and the quick-change pressure block 8 can be achieved by plugging the second locking pin 7 and the positioning pins 14 with holes. During installation, it is very convenient to first install the positioning pins 14 with holes and then plug in the second locking pin 7.

[0033] As a specific structure of the quick-change pressure block 8, Figure 4 As shown, the quick-change pressure block 8 includes a quick-change locking block 81 and a product pressure block 82 detachably connected to the lower end of the quick-change locking block 81. The vertical socket 84 and the lateral socket 83 are both arranged on the quick-change locking block 81. The product pressure block 82 can be replaced as needed. The quick-change locking block 81 and the product pressure block 82 use different materials. For example, the quick-change locking block 81 uses metal material to ensure the connection strength, while the product pressure block 82 can use nylon material, which will not cause damage to the surface of the product.

[0034] As a specific structure of the quick-change base 3, Figure 3 As shown, the upper end of the quick-change base 3 is provided with a supporting protrusion 31 and a rubber sealing area 32, and the rubber sealing area 32 is provided with an airtight hole 33. The airtight hole 33 is connected to the pneumatic quick connector 13 connected to the side of the quick-change base 3. The rubber sealing area 32 can seal the opening on the product to be tested, the supporting protrusion 31 can support the product to be tested, and the pneumatic quick connector 13 is connected to an external air source for helium detection.

[0035] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A quick-change pneumatic clamping helium inspection tool, characterized in that: include: A base plate (1), wherein a plurality of columns (5) are vertically arranged at the upper end of the base plate (1), a top plate (2) is installed on the top of the columns (5), a quick-change base (3) is detachably installed on the upper side of the base plate (1), a cylinder (10) is installed on the upper side of the top plate (2), an extension rod of the cylinder (10) extends downward and is connected to a pressure plate (12) below the top plate (2), a quick-change pressure block (8) corresponding to the quick-change base (3) is detachably installed at the lower end of the pressure plate (12), the quick-change base (3) is connected to the base plate (1) by at least two first locking pins (6), and the quick-change pressure block (8) is connected to the pressure plate (12) by at least two second locking pins (7).

2. The quick-change pneumatic clamping helium inspection tooling according to claim 1 is characterized in that: The first locking latch (6) and the second locking latch (7) both comprise a latch rod body (71) and a plurality of radially retractable elastic convex beads (73) arranged at one end of the latch rod body (71).

3. The quick-change pneumatic clamping helium inspection tooling according to claim 2 is characterized in that: A limiting hole (15) is provided on the base plate (1) at a position corresponding to the first locking pin (6); the first locking pin (6) vertically passes through the quick-change base (3) and is connected to the limiting hole (15); and the elastic bead (73) is engaged with the limiting step in the limiting hole (15).

4. The quick-change pneumatic clamping helium inspection tooling according to claim 2 is characterized in that: At least two positioning pins (14) with holes are vertically provided on the pressure plate (12), and the positioning pins (14) with holes are inserted into the vertical insertion holes (84) at the upper end of the quick-change pressure block (8). The second locking pin (7) is inserted from the lateral insertion holes (83) on the side wall of the quick-change pressure block (8) and passes through the through holes on the positioning pins (14) with holes for limiting engagement.

5. The quick-change pneumatic clamping helium inspection tooling according to claim 4 is characterized in that: The quick-change pressing block (8) comprises a quick-change locking block (81) and a product pressing block (82) detachably connected to the lower end of the quick-change locking block (81), and the vertical plug hole (84) and the lateral plug hole (83) are both arranged on the quick-change locking block (81).

6. The quick-change pneumatic clamping helium inspection tooling according to claim 1 is characterized in that: The upper end of the quick-change base (3) is provided with a supporting protrusion (31) and a rubber sealing area (32), and the rubber sealing area (32) is provided with an airtight hole (33), and the airtight hole (33) is connected to a pneumatic quick connector (13) connected to the side of the quick-change base (3).

7. The quick-change pneumatic clamping helium inspection tooling according to claim 1 is characterized in that: At least two guide posts (11) are arranged on the pressing plate (12), and the guide posts (11) pass through the linear bearings (9) on the top plate (2) upward.

8. The quick-change pneumatic clamping helium inspection tooling according to claim 1 is characterized in that: The upper end of the base plate (1) is provided with a bottom support (4) corresponding to the column (5), and the lower end of the column (5) is connected to the bottom support (4).

9. The quick-change pneumatic clamping helium inspection tooling according to claim 2 is characterized in that: A pull ring (72) is installed at the tail end of the latch rod body (71).

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