Stamping die size parameter measuring device and measuring method

Abstract

The invention relates to the technical field of die measurement, in particular to a stamping die size parameter measuring device and method.The stamping die size parameter measuring device comprises a diameter measuring assembly which comprises a measuring bin, a center shaft rotationally connected to the center of the measuring bin, a connecting gear fixedly connected to the exterior of the center shaft, and two guide rods installed in the measuring bin; the exteriors of the two guide rods are slidably connected with racks engaged with the connecting gears, and the bottoms of the racks are provided with measuring arms. The reading assembly comprises a reading bin and a driving gear, a driving shaft is rotationally connected to the center of the reading bin, a driven gear meshed with the driving gear is fixedly connected to the exterior of the driving shaft, and a reading dial is fixedly connected to the top of the driving shaft; the rotating assembly comprises a machine base, a rotating shaft is rotationally connected to the center of the machine base, a rotating motor is fixedly connected to the top of the machine base, the measuring arm is attached to the surface of the mold, then the rotating motor drives the measuring assembly to rotate integrally, and therefore continuous measurement of the mold at different angles can be achieved, and measurement comprehensiveness and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of mold measurement technology, and in particular to a device and method for measuring the dimensional parameters of stamping dies. Background Technology

[0002] In modern manufacturing, stamping dies are widely used in the automotive, electronics, and home appliance industries. Their dimensional accuracy directly determines the quality consistency and pass rate of stamped parts. Therefore, accurate measurement of the dimensional parameters of stamping dies, such as inner diameter, outer diameter, depth, and step dimensions, is a core part of die design verification, production debugging, and subsequent maintenance. It can promptly detect and correct die dimensional deviations, avoid batch production defects caused by die problems, and ensure production efficiency and product quality.

[0003] Currently, the measurement of stamping dies relies heavily on traditional tools such as vernier calipers and micrometers. These tools are simple to operate and low in cost when measuring the parameters of dies with regular shapes such as cylinders and flat plates. However, when dealing with irregular stamping dies with complex structures such as irregular grooves and multi-angle steps, the measurement angle and contact position of the tool need to be frequently adjusted manually because the parts to be measured are scattered and the angles are varied. This is not only cumbersome and time-consuming, but also prone to human error due to repeated manual adjustments, which leads to a decrease in measurement accuracy.

[0004] To address these issues, we provide a device and method for measuring the dimensional parameters of stamping dies. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] The purpose of this invention is to provide a device for measuring the dimensional parameters of stamping dies. It achieves accurate and rapid readings through gear transmission and reading components, and completes continuous multi-angle measurements through a rotating component. This solves the problem of cumbersome operation caused by manually adjusting the measuring angle during the stamping die process when using existing measuring devices.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a stamping die size parameter measuring device, comprising a diameter measuring component, including a measuring chamber with an opening facing downwards, a central shaft passing through the top of the measuring chamber being rotatably connected to the center of the measuring chamber, a connecting gear being fixedly connected to the outside of the central shaft, two parallel guide rods being installed inside the measuring chamber, racks that mesh with the connecting gear being slidably connected to the outside of each of the two guide rods, and the two racks being symmetrical about the central shaft, a measuring arm being installed at the bottom of the racks, and a spring for pushing the racks to move being movably sleeved on the outside of the guide rods;

[0008] The reading assembly includes a reading chamber fixedly connected to the top of the measuring chamber and a drive gear fixedly connected to the outside of the central shaft. A drive shaft is rotatably connected to the center of the reading chamber. A driven gear that meshes with the drive gear is fixedly connected to the outside of the drive shaft. A reading disk is fixedly connected to the top of the drive shaft. A top cover is fixedly connected to the top of the measuring chamber. A reader for reading the rotation of the reading disk is installed on the top of the top cover.

[0009] The rotating assembly includes a base, at the center of which a rotating shaft is rotatably connected to the top of a top cover, and at the top of the base a rotating motor for driving the rotating shaft to rotate is fixedly connected.

[0010] In a preferred embodiment of the stamping die dimensional parameter measuring device of the present invention, the bottom of the rack is fixedly connected to a mounting base for mounting measuring arms near both ends, and the mounting base is fixedly connected to a magnet for attracting the measuring arms.

[0011] As a preferred embodiment of the stamping die size parameter measuring device of the present invention, the bottom of the measuring chamber is fixedly connected to a bottom cover, the center of the bottom cover is provided with a passage for the central shaft to pass through, the bottom of the bottom cover is fixedly connected to a reset motor for driving the central shaft to rotate, and the interior of the bottom cover is provided with two symmetrical sliding tracks with the central shaft as the center, and the mounting base slides in the corresponding sliding tracks.

[0012] As a preferred embodiment of the stamping die size parameter measuring device of the present invention, the inner wall of the measuring chamber is provided with mounting holes for placing guide rods at both ends, and the bottom cover is fixedly connected with two top blocks that are adapted to the mounting holes for pressing the guide rods.

[0013] As a preferred embodiment of the stamping die dimensional parameter measuring device of the present invention, it further includes a gripping assembly, the gripping assembly including a gripping rod, the gripping rod having a battery installed inside for powering the rotation motor and the reset motor.

[0014] In a preferred embodiment of the stamping die dimensional parameter measuring device of the present invention, a U-shaped seat is fixedly connected to one end of the gripping rod, and screws are fixedly connected to both sides of the machine base. The two screws are rotatably connected to the two side arms of the U-shaped seat, and locking knobs for fixing the machine base are threaded onto the outside of the two screws.

[0015] In a preferred embodiment of the stamping die dimensional parameter measuring device of the present invention, a reset switch for controlling the rotation of a reset motor and a rotation switch for controlling the rotation of a rotation motor are fixedly connected to the outside of the grip rod near the U-shaped seat, and a rubber sleeve is fixedly sleeved on the outside of the grip rod.

[0016] In a preferred embodiment of the stamping die dimensional parameter measuring device of the present invention, rubber pads are fixedly connected to both sides of the machine base, and the rubber pads are rotatably sleeved on the outside of the corresponding screw.

[0017] The beneficial effects of this invention are as follows: the meshing transmission between the connecting gear and two symmetrical racks enables the two measuring arms to move synchronously in opposite directions. Combined with the spring pushing the racks to reset, it ensures that the measuring arms are always in contact with the mold surface. With the precise transmission of the driving gear and the driven gear and the rapid reading of the rotation of the reading disk by the reader, and with the help of the rotating motor to drive the measuring components to rotate as a whole, continuous measurement of different angles of the mold can be achieved without the need to manually adjust the direction of the device, thus improving the comprehensiveness and efficiency of the measurement.

[0018] The present invention also provides the following technical solution: a stamping die size parameter measuring device, wherein a side slide is provided on the side of the measuring chamber, a fixed seat is fixedly connected to the back of one of the racks, an outer sleeve parallel to the rack is fixedly connected inside the fixed seat, and a telescopic rod is threaded inside the outer sleeve.

[0019] Another beneficial effect of the present invention is that by providing an outer sleeve with a telescopic rod on the back of the rack, and utilizing the structure of the telescopic rod extending and retracting along the outer sleeve and extending out from the side slide, it is possible to assist in measuring the depth or step size of the mold side, thereby expanding the measurement range of the device and improving the multifunctionality of the device.

[0020] The present invention also provides a method for measuring the dimensional parameters of a stamping die, comprising the following steps:

[0021] S1. Adjust the machine base to a suitable angle by rotating the screw. After adjustment, tighten the locking knob to fix the machine base.

[0022] S2. When it is necessary to measure the outer diameter of the mold, install the two measuring arms inside the two mounting seats located on the inner side respectively. When it is necessary to measure the outer diameter of the mold, install the two measuring arms inside the two mounting seats located on the outer side respectively.

[0023] S3. Press the reset switch to start the reset motor to rotate forward or reverse, so that the two measuring arms separate or come closer. Then, clamp the two measuring arms on the outside or inside wall of the mold to be tested, respectively. Then release the reset switch to stop the reset motor from rotating. Then, under the push of the spring, the two measuring arms are attached to the outside or inside wall of the mold to be tested. Then, read the measurement data through the reader.

[0024] S4. Press the rotary switch to start the rotary motor. The rotating shaft drives the measuring device to rotate at a certain angle, changing the measuring position. Repeat steps S2 and S3 to perform multiple measurements.

[0025] S5. When it is necessary to measure the mold depth, rotate the telescopic rod to extend it fully, then insert the telescopic rod into the mold. The telescopic rod and the outer sleeve drive the adjusting rack to move through the fixed seat. Then the rack drives the central shaft to rotate through the connecting gear, thereby causing the reading dial to rotate by a corresponding angle. The reader then reads the amount of rotation of the reading dial to obtain the mold depth data. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Wherein:

[0027] Figure 1 This is a schematic diagram illustrating the state of measuring the inner diameter of the mold according to the present invention.

[0028] Figure 2 This is a schematic diagram of the overall exploded structure of the present invention.

[0029] Figure 3 This is a schematic diagram illustrating the state of measuring the opening depth of the mold according to the present invention.

[0030] Figure 4 This is a cross-sectional structural diagram of the outer sleeve of the present invention.

[0031] Figure 5 This is a schematic diagram of the measuring chamber and bottom cover of the present invention.

[0032] Figure 6 This is a schematic diagram of the reading chamber and top cover of the present invention.

[0033] Figure 7 for Figure 2 A magnified view of the structure at point A in the middle.

[0034] Figure 8 for Figure 2 The enlarged structure at point B is shown.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 100. Measuring assembly; 101. Measuring chamber; 101a. Side slide; 101b. Mounting port; 102. Central shaft; 103. Connecting gear; 104. Guide rod; 105. Rack; 106. Spring; 107. Reset motor; 108. Mounting base; 108a. Magnet; 109. Measuring arm; 110. Bottom cover; 110a. Slide; 110b. Passage port; 110c. Top block; 111. Fixing base; 112. Outer sleeve; 113. Telescopic rod; 200. Reading assembly ; 201, Reading compartment; 202, Drive shaft; 203, Drive gear; 204, Driven gear; 205, Reading disc; 206, Top cover; 207, Reader; 300, Rotating assembly; 301, Base; 302, Rotating shaft; 303, Screw; 304, U-shaped seat; 305, Locking knob; 306, Rubber gasket; 307, Rotating motor; 400, Grip assembly; 401, Grip bar; 402, Battery; 403, Reset switch; 404, Rotary switch; 405, Rubber sleeve. Detailed Implementation

[0037] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] Example 1

[0039] Reference Figures 1 to 8 This is the first embodiment of the present invention, which provides a stamping die size parameter measuring device, including a diameter measuring assembly 100, comprising a downward-opening measuring chamber 101, a central shaft 102 rotatably connected to the center of the measuring chamber 101 and passing through the top of the measuring chamber 101, a connecting gear 103 fixedly connected to the outside of the central shaft 102, two parallel guide rods 104 installed inside the measuring chamber 101, and racks 105 slidably connected to the outside of each of the two guide rods 104 and meshing with the connecting gear 103, and the two racks 105 are oriented towards the center of the measuring chamber 101. The spindle 102 is centrally symmetrical. A measuring arm 109 is mounted on the bottom of the rack 105. A spring 106 for pushing the rack 105 is movably sleeved on the outside of the guide rod 104. Through the meshing transmission between the connecting gear 103 and the two symmetrical racks 105, the two measuring arms 109 can move synchronously in opposite directions, ensuring measurement symmetry and improving diameter measurement accuracy. The guide rod 104 provides a stable sliding trajectory for the rack 105 to avoid deviation. The spring 106 can push the rack 105 to reset, ensuring that the measuring arm 109 is always in contact with the mold surface, thus improving measurement accuracy.

[0040] The reading assembly 200 includes a reading chamber 201 fixedly connected to the top of the measuring chamber 101 and a drive gear 203 fixedly connected to the outside of the central shaft 102. A drive shaft 202 is rotatably connected to the center of the reading chamber 201. A driven gear 204 meshing with the drive gear 203 is fixedly connected to the outside of the drive shaft 202. A reading disk 205 is fixedly connected to the top of the drive shaft 202. A top cover 206 is fixedly connected to the top of the measuring chamber 101. A reader 207 for reading the rotation of the reading disk 205 is installed on the top of the top cover 206. The meshing transmission between the drive gear 203 and the driven gear 204 can accurately transmit the rotation of the central shaft 102 to the drive shaft 202. The rotation of the reading disk 205 directly reflects the moving distance of the measuring arm 109. The reader 207 can quickly read the information of the reading disk 205, realize the rapid acquisition of measurement data, and improve reading efficiency and accuracy.

[0041] The rotating assembly 300 includes a base 301. A rotating shaft 302, which is fixedly connected to the top of the top cover 206, is rotatably connected to the center of the base 301. A rotating motor 307, which drives the rotating shaft 302 to rotate, is fixedly connected to the top of the base 301. The rotating motor 307 drives the rotating shaft 302 to rotate the measuring assembly 100 as a whole, which can realize continuous measurement of different angles of the mold without the need for manual adjustment of the device direction, thus improving the comprehensiveness and efficiency of the measurement.

[0042] It also includes a grip assembly 400, which includes a grip bar 401, and the grip bar 401 has a battery 402 installed inside for powering the rotation motor 307 and the reset motor 107;

[0043] One end of the handle 401 is fixedly connected to a U-shaped seat 304. Both sides of the base 301 are fixedly connected to screws 303, and the two screws 303 are rotatably connected to the two side arms of the U-shaped seat 304 respectively. The outside of the two screws 303 are threaded with locking knobs 305 for fixing the base 301. Through the rotatable connection between the screws 303 and the U-shaped seat 304, the relative angle between the base 301 and the handle 401 can be adjusted to adapt to different measurement positions and operating habits. The locking knobs 305 can fix the adjusted angle to prevent angle deviation during measurement and ensure measurement stability.

[0044] Specifically, the bottom of the rack 105 is fixedly connected to the mounting base 108 for mounting the measuring arm 109 near both ends. The mounting base 108 is fixedly connected to the magnet 108a for adsorbing the measuring arm 109. The magnet 108a adsorbs the measuring arm 109, which facilitates quick loading, unloading and replacement of the measuring arm 109.

[0045] The bottom of the measuring chamber 101 is fixedly connected to a bottom cover 110. The bottom cover 110 has a passage 110b at the center for the passage of the central shaft 102. The bottom of the bottom cover 110 is fixedly connected to a reset motor 107 for driving the central shaft 102 to rotate. The bottom of the bottom cover 110 has two symmetrical sliding tracks 110a with the central shaft 102 as the center, and the mounting base 108 slides in the corresponding sliding track 110a.

[0046] A reset switch 403 for controlling the rotation of the reset motor 107 and a rotary switch 404 for controlling the rotation of the rotary motor 307 are fixedly connected to the outside of the grip 401 near the U-shaped seat 304. The grip 401 is also fixedly fitted with a rubber sleeve 405, which increases the friction between the hand and the grip 401 and prevents slippage when holding the grip.

[0047] Furthermore, rubber pads 306 are fixedly connected to both sides of the base 301, and the rubber pads 306 are rotatably sleeved on the outside of the corresponding screws 303. When the base 301 is fixed by the locking knob 305, the rubber pads 306 can increase the friction between the base 301 and the side arm of the U-shaped seat 304, thereby improving the fixing effect.

[0048] The operation process of this embodiment is as follows: When it is necessary to measure the outer diameter of the mold, the two measuring arms 109 are respectively installed inside the two mounting seats 108 located on the inner side. When it is necessary to measure the outer diameter of the mold, the two measuring arms 109 are respectively installed inside the two mounting seats 108 located on the outer side. Then, by pressing the reset switch 403, the reset motor 107 is started to rotate forward or in reverse, causing the central shaft 102 to rotate. Then, the connecting gear 103 drives the two racks 105 to slide along the corresponding guide rods 104, thereby causing the two measuring arms 109 to separate or move closer. Then, the two measuring arms 109 are respectively locked on the outside or inside wall of the mold to be measured. Then, the reset switch 403 is released, causing the reset motor 107 to stop rotating. Driven by the spring 106, the two measuring arms 109 are attached to the outside or inside wall of the mold to be measured. At the same time, the connecting gear 103 drives the central shaft 102 to rotate. The rotation of the central shaft 102 drives the driving gear 203 to rotate, and the driven gear 204 rotates accordingly. The drive shaft 202 drives the reading disk 205 to rotate. The reader 207 reads the rotation amount of the reading disk 205 to obtain the measurement data. Then, the rotation switch 404 is pressed to start the rotation motor 307. The rotating shaft 302 drives the measuring device to rotate a certain angle, changing the measurement position. Steps S2 and S3 are repeated to perform multiple measurements, thereby realizing continuous measurement of different angles of the mold without the need for manual adjustment of the device direction, improving the comprehensiveness and efficiency of the measurement.

[0049] Example 2

[0050] Reference Figure 4 and Figure 5This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, except that a side slide 101a is provided on the side of the measuring chamber 101, and a fixed seat 111 is fixedly connected to the back of one of the racks 105. An outer sleeve 112 parallel to the rack 105 is fixedly connected inside the fixed seat 111, and a telescopic rod 113 is threaded inside the outer sleeve 112.

[0051] The operation process of this embodiment is as follows: the telescopic rod 113 can extend and retract along the outer sleeve 112 and extend out from the side slide 101a, which can assist in measuring the depth or step size of the mold side, expand the measurement range of the device, and improve the multifunctionality of the device.

[0052] Example 3

[0053] Reference Figure 5 This is the third embodiment of the present invention. This embodiment is based on any of the above embodiments, except that the inner walls of the measuring chamber 101 are provided with mounting ports 101b for placing the guide rod 104 at both ends, and the bottom cover 110 is fixedly connected to two top blocks 110c that are adapted to the mounting ports 101b for pressing the guide rod 104 at both ends.

[0054] The operation process of this embodiment is as follows: the mounting port 101b provides a convenient installation and disassembly channel for the guide rod 104, which facilitates the maintenance or replacement of the guide rod 104. The top block 110c can tightly press the guide rod 104 to prevent it from loosening or shifting during the measurement process, and ensure the stable guiding effect of the guide rod 104 on the rack 105.

[0055] Example 4

[0056] This embodiment is the fourth embodiment of the present invention. This embodiment provides a method for measuring the dimensional parameters of a stamping die, and the stamping die is measured according to the following steps:

[0057] S1. Adjust the machine base 301 to a suitable angle by rotating the screw 303. After adjustment, tighten the locking knob 305 to fix the machine base 301.

[0058] S2. When it is necessary to measure the outer diameter of the mold, the two measuring arms 109 are respectively installed inside the two mounting seats 108 located on the inner side. When it is necessary to measure the outer diameter of the mold, the two measuring arms 109 are respectively installed inside the two mounting seats 108 located on the outer side.

[0059] S3. Press the reset switch 403 to start the reset motor 107 to rotate forward or reverse, so that the two measuring arms 109 separate or come closer. Then, the two measuring arms 109 are respectively locked on the outside or inside wall of the mold to be tested. Then, release the reset switch 403 to stop the reset motor 107 from rotating. Then, under the push of the spring 106, the two measuring arms 109 are attached to the outside or inside wall of the mold to be tested. Then, the measurement data is read through the reader 207.

[0060] S4. Press the rotary switch 404 to start the rotary motor 307. The rotating shaft 302 drives the measuring device to rotate at a certain angle, changing the measuring position. Repeat steps S2 and S3 to perform multiple measurements.

[0061] S5. When it is necessary to measure the mold depth, rotate the telescopic rod 113 to fully extend it, then insert the telescopic rod 113 into the mold. The telescopic rod 113 and the outer sleeve 112 drive the adjusting rack 105 to move through the fixed seat 111. Then the rack 105 drives the central shaft 102 to rotate through the connecting gear 103, thereby causing the reading disk 205 to rotate by a corresponding angle. Then the reader 207 reads the amount of rotation of the reading disk 205, and thus obtains the mold depth data.

[0062] Additionally, it should be noted that components not described in detail in this article are existing technologies.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for measuring the dimensional parameters of a stamping die, characterized in that: include, A diameter measuring assembly (100) includes a downward-opening measuring chamber (101). A central shaft (102) is rotatably connected to the center of the measuring chamber (101) and passes through the top of the measuring chamber (101). A connecting gear (103) is fixedly connected to the outside of the central shaft (102). Two parallel guide rods (104) are installed inside the measuring chamber (101). A rack (105) that meshes with the connecting gear (103) is slidably connected to the outside of each of the two guide rods (104). The two racks (105) are symmetrical about the central shaft (102). A measuring arm (109) is installed at the bottom of the rack (105). A spring (106) for pushing the rack (105) to move is movably sleeved on the outside of the guide rod (104). The reading assembly (200) includes a reading chamber (201) fixedly connected to the top of the measuring chamber (101) and a drive gear (203) fixedly connected to the outside of the central shaft (102). A drive shaft (202) is rotatably connected to the center of the reading chamber (201). A driven gear (204) meshing with the drive gear (203) is fixedly connected to the outside of the drive shaft (202). A reading disk (205) is fixedly connected to the top of the drive shaft (202). A top cover (206) is fixedly connected to the top of the measuring chamber (101). A reader (207) for reading the rotation of the reading disk (205) is installed on the top of the top cover (206). The rotating assembly (300) includes a base (301), at the center of which a rotating shaft (302) is rotatably connected to the top of the top cover (206), and at the top of the base (301) a rotating motor (307) for driving the rotating shaft (302) to rotate is fixedly connected.

2. The stamping die dimensional parameter measuring device as described in claim 1, characterized in that: The bottom of the rack (105) is fixedly connected to a mounting base (108) for mounting a measuring arm (109) near both ends. The mounting base (108) is fixedly connected to a magnet (108a) for attracting the measuring arm (109).

3. The stamping die dimensional parameter measuring device as described in claim 1, characterized in that: The measuring chamber (101) has a side slide (101a) on its side. A fixed seat (111) is fixedly connected to the back of one of the racks (105). An outer sleeve (112) parallel to the rack (105) is fixedly connected inside the fixed seat (111). A telescopic rod (113) is threaded inside the outer sleeve (112).

4. The stamping die dimensional parameter measuring device as described in claim 1, characterized in that: The bottom of the measuring chamber (101) is fixedly connected to a bottom cover (110). The bottom cover (110) has a passage (110b) for the passage of the central shaft (102) at its center. The bottom of the bottom cover (110) is fixedly connected to a reset motor (107) for driving the rotation of the central shaft (102). The bottom cover (110) has two sliding tracks (110a) symmetrical about the central shaft (102) inside, and the mounting base (108) slides in the corresponding sliding track (110a).

5. The stamping die dimensional parameter measuring device as described in claim 4, characterized in that: The inner wall of the measuring chamber (101) is provided with mounting ports (101b) for placing guide rods (104) at both ends. The bottom cover (110) is fixedly connected to two top blocks (110c) that are adapted to the mounting ports (101b) for pressing the guide rods (104).

6. The stamping die dimensional parameter measuring device as described in claim 1, characterized in that: It also includes a grip assembly (400) comprising a grip bar (401) having a battery (402) internally mounted to power a rotation motor (307) and a reset motor (107).

7. The stamping die dimensional parameter measuring device as described in claim 6, characterized in that: One end of the grip (401) is fixedly connected to a U-shaped seat (304), and both sides of the base (301) are fixedly connected to screws (303). The two screws (303) are rotatably connected to the two side arms of the U-shaped seat (304), and the two screws (303) are threaded with locking knobs (305) for fixing the base (301).

8. The stamping die dimensional parameter measuring device as described in claim 6, characterized in that: The grip (401) is fixedly connected to the outside of the U-shaped seat (304) with a reset switch (403) for controlling the rotation of the reset motor (107) and a rotary switch (404) for controlling the rotation of the rotary motor (307) in an axisymmetrically distributed manner. A rubber sleeve (405) is fixedly sleeved on the outside of the grip (401).

9. The stamping die dimensional parameter measuring device as described in claim 1, characterized in that: Both sides of the base (301) are fixedly connected with rubber pads (306), and the rubber pads (306) are rotatably sleeved on the outside of the corresponding screws (303).

10. A method for measuring the dimensional parameters of a stamping die, characterized in that: The stamping die dimensional parameter measuring device according to any one of claims 1 to 9 comprises the following steps: S1. Adjust the machine base (301) to a suitable angle by rotating the screw (303). After adjustment, tighten the locking knob (305) to fix the machine base (301). S2. When it is necessary to measure the outer diameter of the mold, the two measuring arms (109) are respectively installed inside the two mounting seats (108) located on the inner side. When it is necessary to measure the outer diameter of the mold, the two measuring arms (109) are respectively installed inside the two mounting seats (108) located on the outer side. S3. Press the reset switch (403) to start the reset motor (107) to rotate forward or reverse, so that the two measuring arms (109) separate or come closer. Then, the two measuring arms (109) are respectively clamped on the outside or inside wall of the mold to be tested. Then, release the reset switch (403) so that the reset motor (107) stops rotating. Then, under the push of the spring (106), the two measuring arms (109) are attached to the outside or inside wall of the mold to be tested. Then, the measurement data is read through the reader (207). S4. Press the rotary switch (404) to start the rotary motor (307). The rotating shaft (302) drives the measuring device to rotate at a certain angle, changing the measuring position. Repeat steps S2 and S3 to perform multiple measurements. S5. If it is necessary to measure the mold depth, rotate the telescopic rod (113) to fully extend the telescopic rod (113), then insert the telescopic rod (113) into the mold. Then the telescopic rod (113) and the outer sleeve (112) drive the adjusting rack (105) to move through the fixed seat (111). Then the rack (105) drives the central shaft (102) to rotate through the connecting gear (103), thereby causing the reading disk (205) to rotate by a corresponding angle. Then the reader (207) reads the amount of rotation of the reading disk (205) to obtain the mold depth data.

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