Chuck clamp

Abstract

The utility model relates to the technical field of work fixtures, and discloses a chuck fixture which comprises a chuck base, a chuck body, a first gas circuit assembly and a driving piston used for being in transmission connection with the fixture, the chuck body is connected with the chuck base, a driving cavity is formed in the chuck body, and the driving piston is installed in the driving cavity in a sliding mode. The chuck base is provided with a first detection hole, a detection assembly hole and a driving air inlet used for being communicated with the driving cavity, the first air path assembly comprises a first air pressure meter and an elastic valve block, the elastic valve block is installed in the detection assembly hole and connected with the chuck base and the driving piston, and the first air pressure meter is communicated with the first detection hole. The elastic valve block is provided with a valve block through hole. According to the chuck clamp, the reliability of the locking detection result of the chuck is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a chuck fixture. Background Art

[0002] During machining, a fixture containing the workpiece is placed on the chuck. The chuck fixture includes a fixture placement port and a main air circuit for testing that connects to the port. The fixture is placed in the port, and the air pressure in the main air circuit is tested to determine whether the port is sealed by the fixture and, therefore, whether the chuck is locked. However, after the chuck is manufactured, a large amount of machining debris remains inside the machine tool. This debris can easily clog the fixture placement port, making it impossible to verify the chuck is locked by checking the main air circuit. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. The utility model provides a chuck fixture to improve the reliability of the chuck locking detection result.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a chuck fixture, comprising a chuck base, a chuck body, a first air circuit assembly and a driving piston for being transmission-connected to the fixture, the chuck body being connected to the chuck base, the chuck body being provided with a driving cavity, the driving piston being slidably mounted in the driving cavity, the chuck base being provided with a first detection hole, a detection assembly hole and a driving air inlet for communicating with the driving cavity, the first air circuit assembly comprising a first pressure gauge and an elastic valve block, the elastic valve block being installed in the detection assembly hole, the elastic valve block being connected to the chuck base and the driving piston respectively, the first pressure gauge being communicated with the first detection hole, and the elastic valve block being provided with a valve block through-hole,

[0005] When the driving air inlet is inflated, the valve block through hole is communicated with the driving cavity and the first detection hole respectively;

[0006] When the driving air inlet is connected to the atmosphere, both ends of the valve block through hole are sealed and connected to the chuck base respectively.

[0007] As a preferred solution, the elastic valve block includes a locking elastic part and an air circuit valve block, the locking elastic part and the air circuit valve block are respectively installed on the detection assembly hole, the two ends of the locking elastic part are respectively connected to the chuck base and the air circuit valve block, the end of the air circuit valve block away from the locking elastic part is connected to the driving piston, and the valve block through hole is set on the air circuit valve block.

[0008] As a preferred solution, the locking elastic member is located in the detection assembly hole, and when the driving air inlet is inflated, at least a portion of the air circuit valve block is located in the detection assembly hole.

[0009] As a preferred solution, both ends of the valve block through hole are respectively set as a first through hole and a second through hole, and the first through hole and the second through hole are respectively located on the side surfaces of the gas circuit valve block;

[0010] When the driving air inlet is inflated, the first through hole extends out of the detection assembly hole and communicates with the driving cavity, and the second through hole is located in the detection assembly hole and communicates with the first detection hole;

[0011] When the driving air inlet is connected to the atmosphere, the first through hole and the second through hole are respectively located in the detection assembly hole, and the first through hole and the second through hole are respectively sealed and connected to the inner wall of the detection assembly hole.

[0012] As a preferred solution, the extending direction of the detection assembly hole is the same as the sliding direction of the drive piston.

[0013] As a preferred embodiment, the chuck body is provided with a drive port, the drive piston includes a piston body and a connecting rod, one end of the connecting rod is connected to the piston body, the other end of the connecting rod is slidably mounted on the drive port, the piston body is slidably mounted on the drive chamber, and the air circuit valve block is connected to the piston body.

[0014] As a preferred embodiment, the chuck fixture also includes a second pressure gauge, the chuck body is provided with a detection channel and a fixture placement hole for placing the fixture, the chuck base is provided with a second detection hole, the fixture placement hole, the detection channel and the second detection hole are connected to form a second detection air path, and the second detection hole is connected to the second pressure gauge.

[0015] As a preferred embodiment, the chuck fixture also includes a tee piece, which is provided with a first connecting port, a detection inflation port and a detection connecting port. The first connecting port is connected to the second detection hole, the detection inflation port and the detection connecting port are respectively connected to the first connecting port, and the detection connecting port is connected to the second pressure gauge.

[0016] As a preferred solution, the fixture placement hole and the drive port are respectively arranged on the top surface of the chuck body.

[0017] As a preferred solution, the chuck body is connected to a clamp, the clamp is movably abutted against the clamp placement hole, the clamp is inserted into the driving port and is detachably connected to the connecting rod.

[0018] The chuck clamp of the present invention embodiment is compared with the prior art, and its beneficial effect is that: when the driving air inlet is inflated, the gas pushes the driving piston from the bottom of the driving piston, the driving piston moves upward, and the elastic valve block is stretched by the upward movement of the driving piston, and the driving piston clamps and pushes up, so that the clamp can be smoothly transferred from the chuck. At this time, the valve block through hole is respectively connected with the driving chamber and the first detection hole, and the driving air inlet, the driving chamber, the valve block through hole, and the first detection hole are respectively connected with the first pressure gauge to form a first detection air path. Since the driving air inlet is continuously inflated, the value of the first pressure gauge is positive pressure; when the driving air inlet is stopped, the gas in the driving chamber is discharged from the driving air inlet, the elastic valve block retracts, and drives the driving piston to move downward, and then the clamp is locked by the driving piston. The value of the first pressure gauge is normal pressure, and the two ends of the valve block through hole are respectively sealed with the chuck base. Since the first detection air path does not have the risk of being blocked by machining debris, the locking condition of the chuck fixture is detected through the first detection air path, thereby improving the reliability of the chuck locking detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0020] Figure 2 It is a schematic diagram of the internal structure of the first detection air path when the clamp is locked in the embodiment of the utility model.

[0021] Figure 3 This is an embodiment of the utility model Figure 2 Schematic diagram of the enlarged structure at A in FIG.

[0022] Figure 4 It is a structural schematic diagram of the embodiment of the utility model in which the clamp and the chuck body are separated.

[0023] Figure 5 It is a schematic diagram of the internal structure of the first detection air path when the clamp is released in an embodiment of the present utility model.

[0024] Figure 6 This is an embodiment of the utility model Figure 5 Schematic diagram of the enlarged structure at B in FIG.

[0025] Figure 7 It is a structural diagram of the second detection gas circuit of an embodiment of the present utility model.

[0026] Figure 8 It is a structural schematic diagram of the abutment between the clamp and the clamp placement hole in an embodiment of the utility model.

[0027] Figure 9 It is a structural schematic diagram of the embodiment of the utility model in which the clamp and the clamp placement hole are separated.

[0028] In the picture:

[0029] 10. Chuck base; 11. First detection hole; 12. Detection assembly hole; 13. Drive air inlet; 14. Second detection hole;

[0030] 20. Chuck body; 21. Drive port; 22. Drive cavity; 23. Detection channel; 24. Fixture placement hole; 25. Fixture;

[0031] 30. First air circuit assembly; 31. First air pressure gauge; 32. Elastic valve block; 33. Valve block through hole; 34. Locking elastic member; 35. Air circuit valve block; 36. First through hole; 37. Second through hole;

[0032] 40. Driving piston; 41. Piston body;

[0033] 50. Second air pressure gauge; 51. Tee; 52. First connection port; 53. Detection and inflation port; 54. Detection connection port. DETAILED DESCRIPTION

[0034] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present invention, it should be understood that the terms "connected," "connected," "fixed," etc. used in the present invention should be interpreted broadly. For example, the terms may refer to fixed connection, detachable connection, or integration; mechanical connection, welding connection; direct connection, indirect connection through an intermediate medium, internal communication between two elements, or interaction between two elements, unless otherwise explicitly defined. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] like Figures 1 to 9As shown, a chuck fixture 25 of a preferred embodiment of the present utility model comprises a chuck base 10, a chuck body 20, a first air circuit assembly 30 and a driving piston 40 for transmission connection with the fixture 25, the chuck body 20 is connected to the chuck base 10, the chuck body 20 is provided with a driving chamber 22, the driving piston 40 is slidably mounted in the driving chamber 22, the chuck base 10 is provided with a first detection hole 11, a detection assembly hole 12 and a driving air inlet 13 for communicating with the driving chamber 22, the first air circuit assembly 30 comprises a first air pressure gauge 31 and an elastic valve block 32, the elastic valve block 32 is installed in the detection assembly hole 12, the elastic valve block 32 is respectively connected to the chuck base 10 and the driving piston 40, the first air pressure gauge 31 is communicated with the first detection hole 11, and the elastic valve block 32 is provided with a valve block through hole 33,

[0038] When the air inlet 13 is driven to inflate, Figures 5 and 6 As shown, the valve block through hole 33 is communicated with the drive chamber 22 and the first detection hole 11 respectively;

[0039] When the air inlet 13 is driven to communicate with the atmosphere, Figures 1 to 3 As shown, both ends of the valve block through hole 33 are sealedly connected to the chuck base 10.

[0040] When the chuck fixture 25 of the present invention drives the air inlet 13 to inflate, the gas pushes up the driving piston 40 from the bottom of the driving piston 40, and the driving piston 40 moves upward. The elastic valve block 32 is stretched by the upward movement of the driving piston 40, and the driving piston 40 clamps and pushes up, thereby enabling the fixture 25 to be smoothly transferred from the chuck. At this time, the valve block through hole 33 is respectively connected to the driving chamber 22 and the first detection hole 11, and the driving air inlet 13, the driving chamber 22, the valve block through hole 33, and the first detection hole 11 are respectively connected to the first air pressure gauge 31 to form a first detection air path. Since the driving air inlet 13 is continuously inflated, the value of the first air pressure gauge 31 is positive pressure. When the driving air inlet 13 is stopped, the gas in the driving chamber 22 is discharged from the driving air inlet 13, and the elastic valve block 32 retracts, driving the driving piston 40 to move downward, thereby locking the clamp 25 through the driving piston 40. The value of the first air pressure gauge 31 is normal pressure, and the two ends of the valve block through-hole 33 are respectively sealed with the chuck base 10. Because the first detection air path is not at risk of being clogged by machining debris, the locking condition of the chuck clamp 25 is detected through the first detection air path, thereby improving the reliability of the chuck locking test results.

[0041] Further, such as Figures 1 to 6As shown, the elastic valve block 32 includes a locking elastic member 34 and an air circuit valve block 35. The locking elastic member 34 and the air circuit valve block 35 are respectively mounted on the detection assembly hole 12. The two ends of the locking elastic member 34 are respectively connected to the chuck base 10 and the air circuit valve block 35. The end of the air circuit valve block 35 away from the locking elastic member 34 is connected to the drive piston 40. The valve block through hole 33 is provided in the air circuit valve block 35. The detection assembly hole 12 guides the elastic valve block 32, allowing the elastic valve block 32 to slide along the extension direction of the detection assembly hole 12. The two ends of the locking elastic member 34 are respectively connected to the chuck base 10 and the air circuit valve block 35 to achieve the fixation of the locking elastic member 34. The air circuit valve block 35 is used to control the connection or closure between the first detection hole 11 and the drive chamber 22.

[0042] As one embodiment, the locking elastic member 34 is a spring.

[0043] Further, such as Figures 1 to 6 As shown, the locking spring 34 is located within the detection assembly hole 12 to ensure that the locking spring 34 always remains within the detection device hole. By guiding the detection assembly hole, the transmission stability of the locking spring 34 is improved. When the air inlet 13 is driven to inflate, at least a portion of the air circuit valve block 35 is located within the detection assembly hole 12, ensuring the transmission stability of the air circuit valve block 35 during sliding.

[0044] Further, such as Figures 5 and 6 As shown, the locking elastic member 34 is located in the detection assembly hole 12 , and when the air inlet 13 is driven to inflate, at least a portion of the air circuit valve block 35 is located in the detection assembly hole 12 .

[0045] Further, such as Figures 1 to 6 As shown, both ends of the valve block through hole 33 are respectively set as a first through hole 36 and a second through hole 37, and the first through hole 36 and the second through hole 37 are respectively located on the side of the gas circuit valve block 35;

[0046] When the air inlet 13 is driven to inflate, Figures 5 and 6 As shown, the first through hole 36 extends out of the detection assembly hole 12 and communicates with the drive cavity 22, and the second through hole 37 is located in the detection assembly hole 12 and communicates with the first detection hole 11;

[0047] When the air inlet 13 is driven to communicate with the atmosphere, Figures 1 to 3 As shown, the first through hole 36 and the second through hole 37 are respectively located in the detection assembly hole 12 , and the first through hole 36 and the second through hole 37 are respectively sealed and connected to the inner wall of the detection assembly hole 12 .

[0048] The detection assembly hole 12 guides the gas circuit valve block 35 . Meanwhile, the detection assembly hole 12 and the gas circuit valve block 35 are slidably matched to realize the opening and closing of the first through hole 36 and the second through hole 37 .

[0049] Further, such as Figures 1 to 6 As shown, the extending direction of the detection assembly hole 12 is the same as the sliding direction of the drive piston 40. Since the detection assembly hole 12 guides the sliding of the elastic valve block 32, the detection assembly hole 12 and the driving piston 40 have the same sliding direction, which helps to improve the transmission stability between the elastic valve block 32 and the driving piston 40.

[0050] Further, such as Figure 4 As shown, the chuck body 20 is provided with a drive port 21. The drive piston 40 includes a piston body 41 and a connecting rod. One end of the connecting rod is connected to the piston body 41, and the other end of the connecting rod is slidably mounted in the drive port 21. The piston body 41 is slidably mounted in the drive chamber 22. The air valve block 35 is connected to the piston body 41. The piston body 41 is respectively connected to the connecting rod and the air valve block 35 to achieve a transmission connection between the connecting rod and the elastic valve block 32. The clamp 25 is inserted into the drive port 21 and inflated at the drive air inlet 13. The piston body 41 slides upward, driving the connecting rod to slide upward. The connecting rod lifts the clamp 25, separating the clamp 25 from the chuck body 20.

[0051] In one embodiment, one end of the connecting rod is detachably connected to the clamp 25, so that the connecting rod can drive the clamp 25 to be locked. When the connecting rod lifts the clamp 25, the clamp 25 can be detached from the connecting rod to achieve separation. The detachable connection structure is conventional, such as a snap connection or a threaded connection, and will not be described in detail again.

[0052] Further, such as Figures 7 to 9 As shown, the chuck fixture 25 also includes a second air pressure gauge 50, the chuck body 20 is provided with a detection channel 23 and a fixture placement hole 24 for placing the fixture 25, the chuck base 10 is provided with a second detection hole 14, the second detection hole 14 is connected to the second air pressure gauge 50, the fixture placement hole 24, the detection channel 23 and the second detection hole 14 are connected to form a second detection air path. Figure 8 As shown, when the fixture placement hole 24 is filled with a fixture 25, the fixture placement hole 24 is closed, and a certain amount of test gas is injected into the second detection hole 14. Then, the gas injection is stopped and the second detection hole 14 is closed. The air pressure reading of the second pressure gauge 50 is maintained at a certain value and the air pressure does not drop, confirming that the fixture 25 has been locked on the chuck by the elastic valve block 32. Figure 9 As shown, the air inlet 13 is driven to inflate, the piston 40 is driven to slide upward, the elastic valve block 32 is stretched, and the clamp 25 is lifted up by the connecting rod of the driving piston 40. The clamp placement hole 24 is opened, and the gas in the detection channel 23 is discharged from the clamp placement hole 24. The air pressure value of the second pressure gauge 50 drops, confirming that the clamp 25 has been unlocked. The second detection air circuit is used in conjunction with the first detection air circuit to further improve the reliability of the chuck locking detection result.

[0053] Further, such as Figure 1As shown, the chuck fixture 25 also includes a three-way piece 51, which is provided with a first connection port 52, a detection and inflation port 53, and a detection connection port 54. The first connection port 52 is connected to the second detection hole 14, and the detection and inflation port 53 and the detection connection port 54 are respectively connected to the first connection port 52. The detection connection port 54 is connected to the second pressure gauge 50. The detection and inflation port 53 is used to fill the inspection channel with gas. The first connection port 52 is used to communicate with the second detection hole 14. The detection connection port 54 is used to communicate with the pressure gauge. The provision of the three-way piece 51 makes the assembly of the second detection gas circuit easier.

[0054] Further, such as Figures 1 to 4 As shown, the fixture placement hole 24 and the drive port 21 are respectively provided on the top surface of the chuck body 20. The fixture placement hole 24 and the drive port 21 are respectively used to assemble with the fixture 25. The fixture placement hole 24 and the drive port 21 are provided on the same surface to facilitate the assembly of the fixture 25.

[0055] Further, such as Figure 1 As shown, the chuck body 20 is connected to a fixture 25, which flexibly abuts against the fixture placement hole 24. The fixture 25 is used to position the workpiece. The fixture 25 flexibly abuts against the fixture placement hole 24 and cooperates with the second detection air circuit to detect the chuck's locking status. The fixture 25 is plugged into the drive port 21 and detachably connected to the connecting rod. The connecting rod drives the fixture 25 to lock or release, thereby separating or locking the fixture 25 from the chuck body 20.

[0056] The use process of this utility model:

[0057] 1. If Figure 1 As shown, when material is needed, the controller ventilates the driving air inlet 13;

[0058] 2. If Figures 4 to 6 As shown, the gas pushes up the driving piston 40 from below, and the driving piston 40 moves upward. The elastic valve block 32 is stretched by the upward movement of the driving piston 40, and the driving piston 40 pushes up the clamp, thereby enabling the clamp 25 to be smoothly transferred from the chuck. The clamp 25 leaves the clamp placement hole 24, and the clamp placement hole 24 is opened.

[0059] 3. Second test gas path test, such as Figure 9 As shown, the detection inflation port 53 is inflated and then closed. As the clamp placement hole 24 is deflated, the air pressure of the second pressure gauge 50 drops, confirming that the clamp 25 is popped up;

[0060] 4. First test the gas path test, such as Figures 4 to 6 As shown, due to the continuous ventilation of the driving air inlet 13, the elastic valve block 32 is stretched, the first detection air path is connected, and the value of the first pressure gauge is positive pressure, confirming that the clamp 25 is bounced;

[0061] 5. If Figure 1 As shown, the fixture 25 is transferred, and another fixture 25 with the product to be processed is inserted into the driving port 21 and the fixture placement hole 24 respectively;

[0062] 6. If Figures 2 to 3 As shown, the air inlet 13 is driven to stop ventilation, the elastic valve block 32 is reset and drives the driving piston 40 to move downward, locking the clamp 25 and the chuck body 20, so that the clamp 25 abuts against the clamp placement hole 24;

[0063] 7. The second detection gas circuit detection is started, such as Figures 6 and 7 As shown, the detection inflation port 53 is inflated and then closed. Since the fixture placement hole 24 is abutted against the fixture 25 and closed, the air pressure of the second pressure gauge 50 is maintained at a certain value, confirming that the fixture 25 has been placed in the fixture placement hole 24;

[0064] 8. Start the first gas circuit test. Figures 2 to 3 As shown, since the driving air inlet 13 stops ventilating, the gas in the driving chamber 22 is discharged from the driving air inlet 13, the elastic valve block 32 is reset and drives the driving piston 40 to slide downward, the first through hole 36 and the second through hole 37 are closed, and the value of the first pressure gauge is normal pressure, confirming that the clamp 25 is locked by the elastic valve block 32.

[0065] In summary, the embodiment of the present invention provides a chuck fixture. When the driving air inlet 13 is inflated, the gas pushes up the driving piston 40 from the bottom of the driving piston 40, and the driving piston 40 moves upward. The elastic valve block 32 is stretched by the upward movement of the driving piston 40, and the driving piston 40 clamps and pushes up, thereby enabling the fixture 25 to be smoothly transferred from the chuck. At this time, the valve block through hole 33 is respectively connected to the driving chamber 22 and the first detection hole 11, and the driving air inlet 13, the driving chamber 22, the valve block through hole 33, and the first detection hole 11 are connected. The detection holes 11 are each connected to a first pressure gauge 31 to form a first detection air circuit. Since the drive air inlet 13 is continuously inflated, the value of the first pressure gauge 31 is positive. When the drive air inlet 13 is stopped, the gas in the drive chamber 22 is discharged from the drive air inlet 13, and the elastic valve block 32 retracts, driving the drive piston 40 downward. The drive piston 40 then locks the clamp 25. The value of the first pressure gauge 31 is normal pressure, and both ends of the valve block through-hole 33 are sealed with the chuck base 10. Because the first detection air circuit is free of the risk of clogging with machining debris, the locking condition of the chuck clamp 25 can be detected through the first detection air circuit, improving the reliability of the chuck locking test results.

[0066] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A chuck fixture, characterized in that: The invention comprises a chuck base, a chuck body, a first air circuit assembly and a driving piston for being connected to the clamp transmission, the chuck body is connected to the chuck base, the chuck body is provided with a driving cavity, the driving piston is slidably installed in the driving cavity, the chuck base is provided with a first detection hole, a detection assembly hole and a driving air inlet for communicating with the driving cavity, the first air circuit assembly comprises a first pressure gauge and an elastic valve block, the elastic valve block is installed in the detection assembly hole, the elastic valve block is respectively connected to the chuck base and the driving piston, the first pressure gauge is communicated with the first detection hole, and the elastic valve block is provided with a valve block through hole. When the driving air inlet is inflated, the valve block through hole is communicated with the driving cavity and the first detection hole respectively; When the driving air inlet is connected to the atmosphere, both ends of the valve block through hole are sealed and connected to the chuck base respectively.

2. The chuck fixture according to claim 1, characterized in that: The elastic valve block includes a locking elastic part and an air circuit valve block, the locking elastic part and the air circuit valve block are respectively installed in the detection assembly hole, the two ends of the locking elastic part are respectively connected to the chuck base and the air circuit valve block, the end of the air circuit valve block away from the locking elastic part is connected to the driving piston, and the valve block through hole is set in the air circuit valve block.

3. The chuck fixture according to claim 2, characterized in that: The locking elastic member is located in the detection assembly hole. When the driving air inlet is inflated, at least a portion of the air circuit valve block is located in the detection assembly hole.

4. The chuck fixture according to claim 2, characterized in that: The two ends of the valve block through hole are respectively set as a first through hole and a second through hole, and the first through hole and the second through hole are respectively located on the side surfaces of the gas path valve block; When the driving air inlet is inflated, the first through hole extends out of the detection assembly hole and communicates with the driving cavity, and the second through hole is located in the detection assembly hole and communicates with the first detection hole; When the driving air inlet is connected to the atmosphere, the first through hole and the second through hole are respectively located in the detection assembly hole, and the first through hole and the second through hole are respectively sealed and connected to the inner wall of the detection assembly hole.

5. The chuck fixture according to claim 1, characterized in that: The extending direction of the detection assembly hole is the same as the sliding direction of the driving piston.

6. The chuck fixture according to claim 2, characterized in that: The chuck body is provided with a driving port, the driving piston includes a piston body and a connecting rod, one end of the connecting rod is connected to the piston body, the other end of the connecting rod is slidably mounted on the driving port, the piston body is slidably mounted on the driving chamber, and the air circuit valve block is connected to the piston body.

7. The chuck fixture according to claim 6, characterized in that: The chuck fixture also includes a second pressure gauge, the chuck body is provided with a detection channel and a fixture placement hole for placing the fixture, the chuck base is provided with a second detection hole, the fixture placement hole, the detection channel and the second detection hole are connected to form a second detection air path, and the second detection hole is connected to the second pressure gauge.

8. The chuck fixture according to claim 7, characterized in that: The chuck fixture also includes a tee, which is provided with a first connecting port, a detection inflation port and a detection connecting port. The first connecting port is connected to the second detection hole, the detection inflation port and the detection connecting port are respectively connected to the first connecting port, and the detection connecting port is connected to the second pressure gauge.

9. The chuck fixture according to claim 7, characterized in that: The fixture placement hole and the driving port are respectively arranged on the top surface of the chuck body.

10. The chuck fixture according to claim 7, characterized in that: The chuck body is connected to a clamp, the clamp is movably abutted against the clamp placement hole, the clamp is inserted into the driving port and is detachably connected to the connecting rod.

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