CN118623931A - A rotary pneumatic fixture testing device and testing method - Google Patents

Abstract

The application relates to the field of tool clamps, in particular to a rotary pneumatic tool clamp testing device and a testing method, comprising the following steps: the clamping head is uniformly cut with gaps along the circumferential direction and is provided with elasticity for clamping a workpiece; the test shell is sleeved outside the chuck; the movable plate is detachably connected with the peripheral wall of the chuck and is positioned between the outer wall of the chuck and the inner wall of the test shell; the alarm assembly comprises a plurality of electric induction pieces and an alarm, wherein two opposite surfaces between the test shell and the movable plate are respectively and fixedly connected with the electric induction pieces with corresponding positions and numbers, and the electric induction pieces are electrically connected with the alarm; the alarm is in electrical communication when the inductive tab on the mobile plate abuts the inductive tab on the test housing. The application can ensure the stability of the fixture for clamping the workpiece by monitoring the clamping force of the clamping head in real time, thereby ensuring the processing precision and quality of the workpiece.

Description

A rotary pneumatic fixture testing device and testing method

Technical Field

The present application relates to the field of tooling fixtures, and in particular to a rotary pneumatic tooling fixture testing device and a testing method.

Background Art

At present, the rotary pneumatic fixture test device is a fixture controlled by a pneumatic system, which is mainly used in various fields of manufacturing, including metal processing, automobile manufacturing, etc. It has rotation and clamping functions, and can be used for workpiece clamping, positioning and assembly on efficient production lines.

In the process of parts production and processing, it is usually necessary to first clamp the workpiece with a rotary pneumatic fixture, and then use the tool to perform milling on the workpiece on the processing platform. At the same time, since the rotary pneumatic fixture can rotate by itself, it can complete the circumferential processing of the workpiece, effectively improving the efficiency of workpiece production and processing.

In view of the above-mentioned related technologies, the rotary pneumatic fixture test device usually includes a chuck, which clamps and fixes the workpiece to be processed, and then processes the workpiece. During the processing, the workpiece rotates and cooperates with the tool to complete the processing. Among them, since the tool is constantly in contact with the workpiece, the clamping force may be reduced, further resulting in a deterioration of the clamping effect, thereby deteriorating the workpiece processing accuracy.

Summary of the invention

In order to solve the problem that the clamping force of the above-mentioned chuck cannot be effectively monitored, which may lead to a decrease in the machining accuracy of the workpiece, the present application provides a rotary pneumatic tooling fixture testing device and a testing method.

The present application provides a rotary pneumatic fixture testing device and a testing method, which adopt the following technical solutions:

In a first aspect, the present application provides a rotary pneumatic fixture testing device, comprising:

A chuck having gaps uniformly cut in the circumferential direction and having elasticity for clamping a workpiece;

A test housing, sleeved outside the chuck;

A movable plate, detachably connected to the outer peripheral wall of the chuck, and the movable plate is located between the outer wall of the chuck and the inner wall of the test housing;

The alarm component includes multiple electric induction sheets and an alarm. The two opposite surfaces between the test shell and the movable plate are respectively fixedly connected with electric induction sheets corresponding in position and number. The electric induction sheets are electrically connected to the alarm. When the electric induction sheets on the movable plate abut against the electric induction sheets on the test shell, the alarm is electrically connected.

By adopting the above technical solution, when the chuck clamps the workpiece for processing, the movement of the moving plate can be used to monitor in real time whether the chuck is loose. If it is loose, the alarm component can provide timely feedback to stop further processing. First, the device of the present application can conveniently check the rotary pneumatic fixture when offline to determine whether the clamping effect of the fixture can meet the production and processing of the workpiece. Offline means a state where steps such as milling are not performed on the workpiece. Second, the device of the present application can monitor the processing of the workpiece online. If the clamping force is reduced during use, the work can be stopped in time to ensure the accuracy of the production and processing of the workpiece. Online means the state of processing the workpiece. Therefore, the stability of the clamping force of the chuck can be ensured by real-time monitoring of the clamping force of the chuck, so that the processing accuracy and quality can be guaranteed when the workpiece is processed by milling and other methods.

Optionally, a connecting component is also included, which is used to connect the movable plate and the chuck. The connecting component includes a connecting rod and a connecting seat. The connecting rod is detachably connected to the movable plate, the connecting seat is detachably connected to the chuck, and the connecting rod is plugged and fixed to the connecting seat.

By adopting the above technical solution, the connection assembly can effectively connect the chuck and the moving plate, thereby ensuring the effectiveness of the connection between the two. When the chuck is loose, the movement of the chuck can drive the moving plate to move, so that the electric induction sheet on the moving plate can abut against the electric induction sheet on the test housing, thereby improving the response speed of the alarm. The connection rod and the connection seat are plugged and fixed, making it more convenient and quick to connect the moving plate and the chuck.

Optionally, the connecting assembly further comprises a connecting ring, which is fixedly fitted to the outer wall of the chuck and has elastic potential energy for radial contraction, and the connecting seat is detachably connected to a side of the connecting ring away from the chuck.

By adopting the above technical solution, firstly, the connecting ring can realize the detachable connection between the chuck and the connecting seat without destroying the original structure of the chuck, and can ensure the clamping force of the chuck. Secondly, the connecting ring has elastic potential energy that can further tighten the chuck, so that the chuck can clamp the workpiece and minimize the possibility of the chuck loosening. Thirdly, the connecting ring can produce elastic deformation and timely feedback the looseness of the chuck.

Optionally, it also includes a test inner shell, which is sleeved on the outside of the chuck, and the movable plate is located between the test outer shell and the test inner shell, the test inner shell is fixedly connected to the test outer shell, and the opposite surfaces between the test inner shell and the movable plate are also fixedly connected with electric induction plates of corresponding positions and quantities, and the test inner shell is provided with an avoidance hole for the connecting rod to pass through.

By adopting the above technical solution, the combination of the test inner shell and the test outer shell can further improve the judgment effect of the device of the present application on the clamping force of the chuck, so that feedback can be given whether the clamping force is too large or too small. When the clamping force is too large, the chuck may produce indentations or even deformation on the workpiece, so that the workpiece does not meet the actual processing requirements. When the clamping force is too small, the clamping force of the chuck on the workpiece is small, which may cause the workpiece to loosen, thereby reducing the processing accuracy of the workpiece during subsequent cutting. Therefore, by setting the test inner shell and the test outer shell, it can prevent the clamping force of the chuck from being too small or too large, ensuring that the clamping force of the chuck can be in a suitable state to improve the production and processing effect of the workpiece.

Optionally, a plurality of sliding rods are fixedly connected between the test outer shell and the test inner shell, and the sliding rods are slidably disposed through the movable plate.

By adopting the above technical solution, first, the sliding rod can connect the test outer shell and the test inner shell so that the two form a unified whole. Second, the sliding rod can limit the moving direction of the movable plate, thereby ensuring that the electric induction sheet on the movable plate abuts against the electric induction sheet on the test outer shell or the test inner shell in time. Third, since the rotary pneumatic workpiece fixture needs to rotate to process the circumference of the workpiece during operation, the sliding rod can limit the position of the movable plate to minimize its displacement.

Optionally, the position of the movable plate between the test outer shell and the test inner shell is adjustable.

By adopting the above technical solution, the distance between the inductive sheets can be indirectly adjusted by adjusting the position of the movable plate between the test outer shell and the test inner shell, so that the distance between the movable plate and the test outer shell can be controlled by the actual processing error tolerance, thereby improving the adaptability of the device of the present application to different workpiece errors.

Optionally, the connecting rod includes a connecting sleeve and a connecting sleeve rod, the connecting sleeve is detachably connected to a side of the movable plate close to the test inner shell, the connecting sleeve rod is passed through the connecting sleeve and threadedly connected to the connecting sleeve, and a side of the connecting sleeve rod away from the connecting sleeve is used for plugging with the connecting seat.

By adopting the above technical solution, the connecting sleeve and the connecting sleeve rod can effectively connect the movable plate and the chuck. At the same time, the threaded connection between the two can adjust the length of the connecting rod by rotation, and then adjust the position of the movable plate between the test outer shell and the test inner shell, which is quick and convenient. At the same time, the connection between the connecting sleeve rod and the connecting seat improves the convenience of installing the test outer shell and the test inner shell.

Optionally, the movable plate is provided in conjunction with the alarm assembly, and a plurality of groups are evenly arranged along the circumferential direction of the test shell.

By adopting the above technical solution, multiple groups of movable plates and alarm components are set up to further improve the sensitivity of the application device test and increase the monitoring range of the chuck.

In a second aspect, the present application provides a method for testing a rotary pneumatic fixture, which adopts the following technical solution:

A rotary pneumatic fixture testing device and a testing method, based on the rotary pneumatic fixture testing device, include the following steps:

S1, first clamp the workpiece in the chuck; then put the test housing outside the chuck and fix it to the chuck, and then connect the moving plate to the outer wall of the chuck;

S2, start the operation of the rotary pneumatic fixture and judge the clamping force of the chuck according to the operation status of the alarm component;

S3. When the movable plate moves toward the test housing so that the movable plate contacts the inductive sheet on the test housing, the alarm sounds. When the clamping force of the chuck on the workpiece is normal, the alarm does not sound.

By adopting the above technical solution, the clamping force of the chuck can be monitored and fed back in real time according to the alarm situation of the alarm, thereby ensuring the stability of the chuck in clamping the workpiece and ensuring the processing accuracy of the workpiece.

Optionally, the rotary pneumatic fixture test device further comprises a connecting assembly and a test inner shell, wherein the connecting assembly is used to connect the movable plate and the chuck, the test inner shell is sleeved outside the chuck, and the movable plate is located between the test outer shell and the test inner shell, and the outer wall of the test inner shell and a side of the movable plate close to the outer wall of the test inner shell are also fixedly connected with electric induction sheets corresponding in position and number, respectively;

After step S1, the following steps are also included: sleeve the test inner shell (4) on the outside of the chuck (1);

After the S3 step, the following steps are also included:

S4: When the chuck clamps the workpiece and causes the workpiece to deform, the movable plate moves toward the test inner shell so that the movable plate abuts against the electric induction sheet on the test inner shell, and the alarm sounds.

By adopting the above technical solution, when the clamping force of the chuck on the workpiece is so large that the workpiece is deformed, the alarm will sound to provide a reminder, so that relevant staff can make timely adjustments.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The device of the present application can conveniently check the rotary pneumatic fixture offline to determine whether the clamping effect of the fixture can meet the production and processing of the workpiece; it can also monitor the workpiece processing online. If the clamping force is reduced during use, the work can be stopped in time to ensure the accuracy of the workpiece production and processing;

2. The test inner shell and the test outer shell can prevent the clamping force of the chuck from being too small or too large, ensuring that the clamping force of the chuck can be in a suitable state to improve the production and processing effect of the workpiece;

3. The distance between the inductive sheets can be indirectly adjusted by adjusting the position of the movable plate between the test outer shell and the test inner shell, so that the distance between the movable plate and the test outer shell can be controlled by the actual processing error tolerance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a rotary pneumatic fixture testing device according to an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of A-A in Fig. 1.

FIG. 3 is an enlarged schematic diagram of point B in FIG. 2 .

FIG. 4 is an enlarged schematic diagram of point C in FIG. 3 .

Description of reference numerals:

1. Chuck; 2. Test shell; 3. Moving plate; 4. Test inner shell; 41. Avoidance hole; 5. Alarm component; 51. Electric induction sheet; 52. Alarm; 6. Connecting component; 61. Connecting rod; 611. Connecting sleeve; 612. Connecting sleeve rod; 62. Connecting seat; 63. Connecting ring; 7. Sliding rod.

DETAILED DESCRIPTION

The present application is further described in detail below in conjunction with Figures 1 to 4.

It should be noted that, in the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating 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 application 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 should not be understood as a limitation on the present application.

The embodiments of the present application disclose a rotary pneumatic fixture testing device and a testing method.

In a first aspect, an embodiment of the present application discloses a rotary pneumatic fixture testing device.

1 and 2, a rotary pneumatic fixture test device includes a chuck 1, a test outer shell 2, a movable plate 3, a test inner shell 4, an alarm component 5, and a connection component 6. The chuck 1 is used to clamp a fixed workpiece, the connection component 6 connects the movable plate 3 and the chuck 1, and the test outer shell 2, the movable plate 3, the test inner shell 4, and the alarm component 5 cooperate to provide real-time feedback on the clamping effect of the chuck 1 on the workpiece.

Referring to Figure 1, the chuck 1 is evenly cut with gaps along the circumferential direction, and the chuck 1 is elastic to clamp the workpiece. When the chuck 1 clamps the workpiece, the chuck 1 contracts radially so that the gap between the chucks 1 is reduced until the inner wall of the chuck 1 abuts against the workpiece, thereby completing the clamping and fixing of the workpiece. After the chuck 1 clamps and fixes the workpiece, the entire tooling can be placed on the processing platform to complete the subsequent milling or other processing of the workpiece. Among them, the contraction of the chuck 1 is driven by a cylinder. Since the rotary pneumatic tooling fixture is a prior art, it is not elaborated in detail in this embodiment.

Referring to Figure 2, the test outer shell 2 and the test inner shell 4 are both mounted outside the chuck 1, the movable plate 3 is detachably connected to the outer peripheral wall of the chuck 1, the movable plate 3 is located between the outer wall of the chuck 1 and the inner wall of the test outer shell 2, and the movable plate 3 is also located between the test outer shell 2 and the test inner shell 4.

The test outer shell 2 is fixedly connected to the test inner shell 4. In this embodiment, referring to FIG. 3 , a plurality of sliding rods 7 are fixedly connected between the test outer shell 2 and the test inner shell 4. The test outer shell 2 and the test inner shell 4 can be connected as a unified whole through the plurality of sliding rods 7. The test outer shell 2, the sliding rods 7 and the test inner shell 4 can be integrally formed. In this embodiment, the sliding rods 7 are arranged between the test outer shell 2 and the test inner shell 4 in a radial direction, and the sliding rods 7 are slidably penetrated in the movable plate 3, and the movable plate 3 can move along the axial direction of the sliding rods 7.

2 and 3 , the connecting assembly 6 includes a connecting rod 61 , a connecting seat 62 and a connecting ring 63 .

The connecting rod 61 is detachably connected to the movable plate 3, and the connecting seat 62 is detachably connected to the chuck 1, for example, by bonding, threading, etc. The connecting rod 61 and the connecting seat 62 are plugged and fixed, and specifically, a card slot is provided at the connection between the connecting rod 61 and the connecting seat 62 to achieve plugging and fixing.

The connecting ring 63 is fixedly attached to the outer wall of the chuck 1, and the connecting ring 63 has elastic potential energy for radial contraction, and the connecting seat 62 is detachably connected to the side of the connecting ring 63 away from the chuck 1. The connecting ring 63 can be made of rubber material. The test inner shell 4 is provided with an avoidance hole 41 (combined with FIG. 4 ) for the connecting rod 61 to pass through. Among them, since the connecting ring 63 is elastic, the connecting ring 63 also has a certain clamping effect on the chuck 1, reducing the possible loosening of the chuck 1.

Before using the device of the present application, it needs to be connected through the connection assembly 6. Specifically, the workpiece is first clamped by the chuck 1, and then the connection ring 63 is sleeved outside the chuck 1, so that the connection ring 63 fits the chuck 1. Then the test outer shell 2 and the test inner shell 4 are sleeved outside the chuck 1, and the connecting rod 61 and the connector are aligned and plugged. Because it is plug-in, it is more convenient to install the test outer shell 2 and the test inner shell 4.

2 and 3 , the alarm assembly 5 includes a plurality of inductive sheets 51 and an alarm 52 .

The two opposite surfaces between the test outer shell 2 and the movable plate 3 are respectively fixedly connected with electric induction sheets 51 of corresponding positions and numbers, and the opposite surfaces between the test inner shell 4 and the movable plate 3 are also respectively fixedly connected with electric induction sheets 51 of corresponding positions and numbers, and the electric induction sheets 51 are electrically connected with the alarm 52 (not shown in the wiring diagram). The electric induction sheets 51 can be made of copper sheets, and the alarm 52 can be a sound alarm 52 or other types of alarms 52. The alarm 52 is installed in the space between the test outer shell 2 and the test inner shell 4.

When the electric induction sheet 51 on the moving plate 3 abuts against the electric induction sheet 51 on the test outer shell 2 or the test inner shell 4, the alarm 52 can be electrically connected. Specifically, the electrical connection lines between the alarm 52 and the electric induction sheets 51 at different locations can be understood in combination with a single-pole double-throw switch. After the workpiece is clamped in the chuck 1, the clamped workpiece is placed on the processing platform to perform milling, grooving, tapping and other related processes on the workpiece.

During the workpiece processing, if the clamping force of the chuck 1 is loose, the chuck 1 expands outward, and the connecting rod 61 can drive the movable plate 3 to move along the axial direction of the sliding rod 7, so that the electric induction sheet 51 on the movable plate 3 abuts against the electric induction sheet 51 at the corresponding position on the test housing 2, so that the alarm 52 is in an electrically connected state, thereby sounding an alarm.

If the clamping force of the chuck 1 is large enough to cause the workpiece to deform, the chuck 1 moves inward, and the connecting rod 61 can drive the moving plate 3 to move toward the test inner shell 4, so that the electric sensing piece 51 on the moving plate 3 abuts against the corresponding electric sensing piece 51 on the test inner shell 4, so that the alarm 52 is in an electrically connected state, thereby sounding an alarm. Therefore, the combination of the test outer shell 2 and the test inner shell 4 can effectively monitor the clamping force of the chuck 1.

The position of the movable plate 3 between the test outer shell 2 and the test inner shell 4 is adjustable. Specifically, referring to Figures 3 and 4, the connecting rod 61 includes a connecting sleeve 611 and a connecting sleeve rod 612, the connecting sleeve 611 is detachably connected to a side of the movable plate 3 close to the test inner shell 4, the connecting sleeve rod 612 is inserted into the connecting sleeve 611, and is threadedly connected to the connecting sleeve 611 (the thread is not shown in the figure), and the side of the connecting sleeve rod 612 away from the connecting sleeve 611 is used for plugging with the connecting seat 62.

It is understandable that the permissible range of error can be controlled as required by adjusting the distance between the electric induction sheet 51 on the moving plate 3 and the test housing 2 or the test inner housing 4. For example, when the preset distance between the moving plate 3 and the electric induction sheet 51 on the test housing 2 is small, the permissible range of error is small, which is equivalent to being immediately detected and alarming as long as the chuck 1 is loosened a little. In the above, the length of the connecting rod 61 can be effectively adjusted by rotating the connecting sleeve 612 and the connecting sleeve 611, so that the position of the moving plate 3 between the test housing 2 and the test inner housing 4 can be adjusted according to the actual permissible error requirements.

Referring to Fig. 2, in this embodiment, the movable plate 3 is matched with the alarm assembly 5, and multiple groups are evenly arranged along the circumferential direction of the test housing 2. In this embodiment, two groups are provided, located on two opposite sides. It can be understood that the more groups there are, the higher the sensitivity of the clamping effect of the chuck 1.

The implementation principle of this embodiment is: first clamp the workpiece in the chuck 1, then set the connecting ring 63 to be fixed outside the chuck 1, and then connect the movable plate 3 and the chuck 1 through the connecting rod 61 and the connecting seat 62. During operation, if the chuck 1 is loose, the chuck 1 drives the movable plate 3 to move in the direction close to the test shell 2, so that the test shell 2 and the movable plate 3 are electrically connected through the electric induction sheet 51, and the alarm 52 sounds an alarm. If the chuck 1 is clamped tightly so that the workpiece is deformed, the chuck 1 drives the movement to move in the direction close to the test inner shell 4, so that the test inner shell 4 and the movable plate 3 are electrically connected through the electric induction sheet 51, and the alarm 52 also sounds an alarm. If the chuck 1 is clamped normally, the movable plate 3 does not move, the alarm 52 does not sound, and the workpiece is in a normal clamping state. Therefore, the device of the present application can monitor the stability of the chuck 1 clamping the workpiece in real time, thereby ensuring the accuracy and processing quality of the workpiece processing.

In a second aspect, an embodiment of the present application also discloses a method for testing a rotary pneumatic tooling fixture.

A method for testing a rotary pneumatic fixture is based on the above-mentioned rotary pneumatic fixture testing device, comprising the following steps:

S1, first clamp the workpiece in the chuck 1; then sleeve the test outer shell 2 and the test inner shell 4 outside the chuck 1 and fix them to the chuck 1, and then connect the movable plate 3 to the outer wall of the chuck 1.

S2, start the operation of the rotary pneumatic fixture, and judge the clamping force of the chuck 1 according to the operation status of the alarm component 5.

S3. When the movable plate 3 moves toward the test housing 2 so that the movable plate 3 abuts against the electric induction sheet 51 on the test housing 2, the alarm 52 sounds an alarm. When the clamping force of the chuck 1 on the workpiece is normal, the alarm 52 does not sound an alarm.

S4: When the chuck 1 clamps the workpiece to cause the workpiece to deform, the movable plate 3 moves toward the test inner shell 4 so that the movable plate 3 abuts against the electric induction sheet 51 on the test inner shell 4, and the alarm 52 sounds an alarm.

In the above-mentioned rotary pneumatic fixture testing method, it is possible to monitor in real time whether the chuck 1 is in a state of being too tight or too loose. When the above-mentioned situation occurs, the alarm 52 can respond in time and remind the staff to take adjustment measures. If the alarm 52 does not sound an alarm, it indicates that the clamping of the chuck 1 is in a normal state, thereby ensuring the stability of the chuck 1 clamping the workpiece and ensuring that the chuck 1 will not cause the workpiece to be deformed and damaged due to excessive clamping force.

The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a rotatory pneumatic frock clamp testing arrangement which characterized in that includes:

the clamping head (1) is uniformly cut with gaps along the circumferential direction, and the clamping head (1) is elastic and used for clamping a workpiece;

the test shell (2) is sleeved outside the chuck (1);

the moving plate (3) is detachably connected with the peripheral wall of the chuck (1), and the moving plate (3) is positioned between the outer wall of the chuck (1) and the inner wall of the test shell (2);

The alarm assembly (5) comprises a plurality of electric induction pieces (51) and an alarm (52), wherein two opposite surfaces between the test shell (2) and the movable plate (3) are respectively and fixedly connected with the electric induction pieces (51) with corresponding positions and numbers, and the electric induction pieces (51) are electrically connected with the alarm (52); the alarm (52) is in electrical communication when the electric sensing piece (51) on the mobile plate (3) abuts against the electric sensing piece (51) on the test housing (2).

2. The rotary pneumatic tool clamp test device according to claim 1, wherein: still include coupling assembling (6), coupling assembling (6) are used for connecting movable plate (3) with chuck (1), coupling assembling (6) include connecting rod (61) and connecting seat (62), connecting rod (61) with movable plate (3) can dismantle and be connected, connecting seat (62) with chuck (1) can dismantle and be connected, connecting rod (61) with connecting seat (62) are pegged graft fixedly.

3. The rotary pneumatic tool clamp test device according to claim 2, wherein: the connecting assembly (6) further comprises a connecting ring (63), the connecting ring (63) is fixedly attached to the outer wall of the chuck (1), the connecting ring (63) has elastic potential energy capable of shrinking radially, and the connecting seat (62) is detachably connected to one surface, far away from the chuck (1), of the connecting ring (63).

4. The rotary pneumatic tool clamp test device according to claim 2, wherein: still including test inner shell (4), test inner shell (4) cover is located outside chuck (1), just movable plate (3) are located test shell (2) with between test inner shell (4), test inner shell (4) with test shell (2) fixed connection, test inner shell (4) with relative face between movable plate (3) also fixedly connected with position and quantity corresponding electric induction piece (51) respectively, the confession has been seted up to test inner shell (4) dodge hole (41) that connecting rod (61) passed through.

5. The rotary pneumatic tool clamp test device according to claim 4, wherein: a plurality of sliding rods (7) are fixedly connected between the test outer shell (2) and the test inner shell (4), and the sliding rods (7) are arranged in a sliding penetrating mode on the moving plate (3).

6. The rotary pneumatic tool clamp test device according to claim 4, wherein: the position of the moving plate (3) between the test outer shell (2) and the test inner shell (4) is adjustable.

7. The rotary pneumatic tool clamp test device according to claim 6, wherein: the connecting rod (61) comprises a connecting sleeve (611) and a connecting sleeve rod (612), wherein the connecting sleeve rod (611) is detachably connected with one surface of the movable plate (3) close to the test inner shell (4), the connecting sleeve rod (612) is arranged in the connecting sleeve rod (611) in a penetrating mode and is in threaded connection with the connecting sleeve rod (611), and one surface of the connecting sleeve rod (612) away from the connecting sleeve rod (611) is used for being spliced with the connecting seat (62).

8. The rotary pneumatic tool clamp test device according to claim 1, wherein: the movable plate (3) is matched with the alarm assembly (5), and a plurality of groups of movable plates are uniformly arranged along the circumferential direction of the test shell (2).

9. A rotary pneumatic tool clamp testing method based on the rotary pneumatic tool clamp testing device of any one of claims 1-8, comprising the steps of:

s1, clamping a workpiece in a chuck (1); the test shell (2) is sleeved outside the chuck (1) and fixedly connected with the chuck (1), and the movable plate (3) is connected with the outer wall of the chuck (1);

S2, starting to operate the rotary pneumatic tool clamp, and judging the clamping force of the clamping head (1) according to the operation state of the alarm assembly (5);

S3, when the movable plate (3) moves towards the direction approaching the test shell (2) so that the movable plate (3) is abutted with the electric sensing piece (51) on the test shell (2), the alarm (52) alarms; when the clamping force of the clamping head (1) on the workpiece is normal, the alarm (52) does not alarm.

10. The rotary pneumatic tool clamp test method according to claim 9, wherein:

The rotary pneumatic tool clamp testing device further comprises a connecting assembly (6) and a testing inner shell (4), wherein the connecting assembly (6) is used for connecting the moving plate (3) with the clamping head (1), the testing inner shell (4) is sleeved outside the clamping head (1), the moving plate (3) is positioned between the testing outer shell (2) and the testing inner shell (4), and the outer wall of the testing inner shell (4) and one surface, close to the outer wall of the testing inner shell (4), of the moving plate (3) are fixedly connected with electric induction pieces (51) with corresponding positions and numbers respectively;

The step S1 further comprises the following steps: the test inner shell (4) is also sleeved outside the chuck (1);

the step S3 is followed by the following steps:

s4: when the workpiece is deformed due to the clamping of the workpiece by the clamping head (1), the moving plate (3) moves towards the direction close to the inner test shell (4) so that the moving plate (3) is abutted with the electric induction piece (51) on the inner test shell (4), and the alarm (52) alarms.