Thermal-state ring piece measuring device

Abstract

A thermal state ring measuring device disclosed by the present invention comprises a positioning piece, a measuring piece, a grab handle and a limiting piece, the measuring piece comprises a vertical rod, a cross rod, a driving piece, a threaded rod, a sliding block and a measuring plate, the vertical rod is installed at the top of the positioning piece, an installation groove is formed in the vertical rod, the driving piece is arranged in the installation groove, the driving piece is matched with the threaded rod, and the sliding block is arranged in the threaded rod. The transverse rod is installed on the vertical rod, and the threaded rod is installed on the transverse rod. The arrangement of the positioning piece facilitates the fixation of the device in the middle of the thermal-state ring piece, the threaded rod is driven to rotate through the driving piece, and the threaded rod rotates to drive the sliding blocks on the two sides of the center line of the threaded rod to move towards the two sides or the middle at the same time until the measuring plate abuts against the outer wall of the thermal-state ring piece. And finally, the purpose of measuring the size of the thermal-state ring piece is achieved by measuring the distance between the measuring plates on the sliding block, and the measurement quality and the measurement efficiency of the size of the thermal-state ring piece are guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of measurement technology, and in particular relates to a hot ring measuring device. Background Art

[0002] The requirements for forgings used in the fields of aviation, chemical industry are getting higher and higher. In the production process, it is necessary to strictly follow the forging process, so the size detection is particularly important. In the production process, the temperature of the hot ring after rolling is relatively high, and general measuring tools cannot complete it at all. The distance between the scale rod and the positioning rod of the existing measuring tool is too close, which may easily cause the operator to be burned by the high temperature of the hot ring during use. If the size of the rolled ring cannot be guaranteed, it will cause batches of rings to be reworked or even scrapped, resulting in great losses in the factory's profits. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a hot ring measuring device. The arrangement of the positioning member facilitates the fixing of the device in the middle of the hot ring. The threaded rod is driven to rotate by the driving member. The rotation of the threaded rod drives the sliding blocks on both sides of the center line of the threaded rod to move to both sides or to the middle at the same time until the measuring plate rests on the outer wall of the hot ring. Finally, the purpose of measuring the size of the hot ring is achieved by measuring the distance between the measuring plates on the sliding block, thereby ensuring the measurement quality and efficiency of the size of the hot ring.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A hot ring measuring device comprises a positioning member, a measuring member, a handle, a limiting member and a blocking member, wherein the measuring member comprises a vertical pole, a cross bar, a driving member, a threaded rod, a sliding block and a measuring plate, wherein the vertical pole is mounted on the top of the positioning member, and a mounting groove is formed on the vertical pole, wherein the driving member is arranged in the mounting groove, and the driving member cooperates with the threaded rod, wherein the cross bar is mounted on the vertical pole, and the threaded rod is mounted on the cross bar, and the threads on both sides of the center line of the threaded rod are in opposite directions, wherein the sliding blocks are symmetrically arranged on both sides of the center line of the threaded rod, and the sliding blocks cooperate with the threads of the threaded rod, wherein the measuring plate is mounted on the bottom of the sliding block, wherein the handle is mounted on one side of the vertical pole, wherein the limiting member is arranged on the top of the vertical pole, and the limiting member cooperates with the positioning member, wherein the blocking member is mounted on the handle, and the blocking member cooperates with the limiting member.

[0006] Preferably, it also includes a mounting block, and a plurality of mounting blocks are provided. The plurality of mounting blocks are evenly distributed on the handle, and the mounting blocks are fixedly mounted on the handle. The provision of the mounting blocks can, on the one hand, strengthen the handle, and on the other hand, can connect the limit member and the handle, thereby ensuring the normal operation of the limit member.

[0007] Preferably, the driving member includes a worm wheel, a worm, a rotating rod and a handle, the worm wheel is fixedly mounted on the threaded rod, the worm is arranged above the worm wheel, both ends of the worm are rotatably mounted on the side walls of the mounting groove, and the worm is meshed with the worm wheel, one end of the rotating rod is fixedly mounted on the end of the worm, and the rotating rod is rotatably mounted on the mounting block, and the handle is fixedly mounted on the other end of the rotating rod, rotating the handle drives the rotating rod to rotate, rotation of the rotating rod drives the worm to rotate, rotation of the worm drives the worm wheel to rotate, rotation of the worm drives the threaded rod to rotate, rotation of the threaded rod drives the sliding block to approach the hot ring component, and movement of the sliding block drives the measuring plate to move toward the hot ring component, thereby achieving the purpose of measuring the size of the hot ring component.

[0008] Preferably, strip holes are opened on both sides of the center line of the cross bar, the threaded rod is arranged in the strip holes, the sliding blocks are symmetrically arranged in the strip holes on both sides of the center line of the cross bar, and the sliding blocks slide in cooperation with the strip holes. The setting of the strip holes can guide the sliding blocks and prevent the sliding blocks from rotating during the movement, thereby ensuring the measurement accuracy of the device on hot ring parts.

[0009] Preferably, the positioning member includes a fixing rod, a rotating arm, a supporting arm, a lifting block, and a fixing block, the fixing rod being fixedly mounted on the bottom of the vertical rod, the fixing block being fixedly mounted on the fixing rod, a mounting hole being opened on the fixing rod, a guide rod and a spring being arranged in the mounting hole, the lifting block being slidably mounted on the fixing rod, two ends of the guide rod being fixedly mounted on the upper and lower side walls of the mounting hole, the lifting block being slidably mounted on the guide rod, the spring being sleeved on the guide rod, and the spring being located between the lifting block and the upper inner wall of the mounting hole, the rotating arm being provided with three, the three rotating arms being evenly distributed on the fixing block, the supporting arm being provided with three, the three supporting arms being corresponding to the three rotating arms one by one, and the two ends of the supporting arm being rotatably connected with the lifting block and the rotating arm respectively, and the arrangement of the supporting arm, the lifting block, the guide rod, the spring and the rotating arm can ensure that the device can position hot ring parts of different sizes, thereby realizing the measurement of the sizes of hot ring parts of different sizes, and ensuring the accuracy of the measurement results.

[0010] Preferably, a rotating wheel is provided at the end of the rotating arm, and the rotating wheel is symmetrically arranged on both sides of the center line of the rotating arm, and the rotating wheel is rotatably connected to the rotating arm. The setting of the rotating wheel can reduce the friction between the support arm and the inner wall of the hot ring, thereby improving the positioning efficiency of the positioning mechanism.

[0011] Preferably, the limit member includes a push-pull rod, a limit rod and a connecting rod. The limit rods are symmetrically arranged on both sides of the center line of the vertical pole, and the limit rod is rotatably installed on the vertical pole. Both ends of the connecting rod are fixedly installed on the ends of the limit rod on both sides of the center line of the vertical pole. The push-pull rod is slidably installed on the mounting block. A fixing column is fixedly installed on the end of the push-pull rod. A waist-shaped hole is opened on the limit rod, and the fixed column is slidably set in the waist-shaped hole. The limit member is used to limit the rotation of the limit rod, which is convenient for placing the positioning member inside hot ring members of different sizes. The setting of the connecting rod can serve the purpose of limiting the limit rod and prevent the limit rod from rotating under the action of the spring, thereby ensuring the normal operation of the limit member.

[0012] Preferably, the blocking member includes a column, a lifting plate and a blocking plate, the column is fixedly mounted on the top of the rightmost mounting block, the lifting plate is slidably mounted on the column, the blocking plate is vertically arranged with the lifting plate, and the blocking plate is arranged at the bottom of the lifting plate, the blocking plate cooperates with the end of the push-pull rod, and the blocking member is arranged to limit the push-pull rod to ensure that the limit member can limit the rotating arm to prevent the rotating arm from interfering with the side wall of the hot ring when the positioning mechanism is placed inside the hot ring, thereby greatly ensuring the measurement quality and efficiency of the device for the hot ring.

[0013] Preferably, a limiting groove is provided on the right side wall of the rightmost mounting block on the handle, and the limiting groove is slidably matched with the blocking plate. The setting of the limiting groove can limit the blocking plate and ensure the normal operation of the blocking plate.

[0014] The beneficial effects of the present invention are:

[0015] 1) The arrangement of the positioning part of the device facilitates the fixing of the device in the middle of the hot ring. The threaded rod is driven to rotate by the driving part. The rotation of the threaded rod drives the sliding blocks on both sides of the center line of the threaded rod to move to both sides or to the middle at the same time until the measuring plate is against the outer wall of the hot ring. Finally, the purpose of measuring the size of the hot ring is achieved by measuring the distance between the measuring plates on the sliding block, thereby ensuring the measurement quality and efficiency of the size of the hot ring.

[0016] 2) The installation block of the device can, on the one hand, strengthen the handle, and on the other hand, connect the limiter with the handle, thereby ensuring the normal operation of the limiter.

[0017] 3) The handle of the device is rotated to drive the rotating rod to rotate, the rotating rod drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the threaded rod to rotate, the threaded rod drives the sliding block to approach the hot ring, the sliding block moves and drives the measuring plate to move toward the hot ring, thereby achieving the purpose of measuring the size of the hot ring.

[0018] 4) The arrangement of the strip-shaped holes in the device can guide the sliding block and prevent the sliding block from rotating during movement, thereby ensuring the accuracy of the device in measuring hot rings.

[0019] 5) The arrangement of the support arm, lifting block, guide rod, spring and rotating arm of the device can ensure that the device can position hot rings of different sizes, thereby measuring the sizes of hot rings of different sizes and ensuring the accuracy of the measurement results.

[0020] 6) The setting of the rotating wheel of the device can reduce the friction between the support arm and the inner wall of the hot ring, thereby improving the positioning efficiency of the positioning mechanism.

[0021] 7) The limiter of the device is used to limit the rotation of the limiter rod, which is convenient for placing the positioning member inside hot rings of different sizes. The setting of the connecting rod can limit the limiter rod and prevent the limiter rod from rotating under the action of the spring, thereby ensuring the normal operation of the limiter.

[0022] 8) The blocking member of the device is used to limit the push-pull rod, ensuring that the limit member can limit the rotating arm and prevent the rotating arm from interfering with the side wall of the hot ring when the positioning mechanism is placed inside the hot ring, thereby greatly ensuring the measurement quality and efficiency of the device for the hot ring.

[0023] 9) The setting of the limit groove of this device can limit the blocking plate and ensure the normal operation of the blocking plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 It is a structural schematic diagram of the present invention.

[0025] Attached Figure 2 It is a structural schematic diagram of the positioning member in the present invention.

[0026] Attached Figure 3 It is a schematic diagram of the installation structure of the measuring piece in the present invention.

[0027] Attached Figure 4 The present invention Figure 3 Enlarged view of point A in the middle.

[0028] Attached Figure 5 It is a schematic diagram of the structure of the measuring piece in the present invention.

[0029] Attached Figure 6 It is a structural schematic diagram of the limiting member in the present invention.

[0030] Attached Figure 7 It is a schematic structural diagram of the blocking member in the present invention.

[0031] Attached Figure 8It is a schematic diagram of the working structure of the present invention.

[0032] In the figure:

[0033] 1. Positioning member; 101. Fixing rod; 102. Mounting block; 103. Mounting hole; 104. Guide rod; 105. Spring; 106. Lifting block; 107. Rotating wheel; 108. Support arm; 109. Rotating arm;

[0034] 2. Measuring member; 201. Vertical rod; 202. Driving member; 203. Crossbar; 204. Measuring plate; 205. Strip hole; 206. Rotating rod; 207. Mounting slot; 208. Worm gear; 209. Worm; 2010. Sliding block; 2011. Handle; 2012. Threaded rod;

[0035] 3. Limiting member; 301. Push-pull rod; 302. Waist-shaped hole; 303. Fixed column; 304. Limiting rod; 305. Connecting rod;

[0036] 4. blocking member; 401. column; 402. lifting plate; 403. blocking plate;

[0037] 5. Handle;

[0038] 6. Fixed block; 601. Limiting slot;

[0039] 7. Hot rings. DETAILED DESCRIPTION

[0040] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "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 invention, 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 invention.

[0042] like Figure 1 As shown, a measuring device for a hot ring 7 includes a positioning member 1, a measuring member 2, a handle 5, a limit member 3 and a blocking member 4. The setting of the positioning member 1 facilitates the placement of the device at the center position of the hot ring 7 to ensure the accuracy of the measurement of the size of the hot ring 7 by the measuring member 2.

[0043] like Figure 3 , Figure 4 , Figure 5 As shown, the measuring member 2 includes a vertical rod 201, a horizontal rod 203, a driving member 202, a threaded rod 2012, a sliding block 2010 and a measuring plate 204. The vertical rod 201 is installed on the top of the positioning member 1, and a mounting groove 207 is opened on the vertical rod 201. The driving member 202 is arranged in the mounting groove 207, and the driving member 202 cooperates with the threaded rod 2012. The horizontal rod 203 is installed on the vertical rod 201, and the threaded rod 2012 is installed on the horizontal rod 203. The threaded rod The threads on both sides of the center line of 2012 have opposite rotation directions, the sliding block 2010 is symmetrically arranged on both sides of the center line of the threaded rod 2012, and the sliding block 2010 is threadedly matched with the threaded rod 2012, the measuring plate 204 is installed at the bottom of the sliding block 2010, the handle 5 is installed on one side of the vertical pole 201, the limit member 3 is arranged on the top of the vertical pole 201, and the limit member 3 is matched with the positioning member 1, and the blocking member 4 is installed on the handle 5, and the blocking member 4 is matched with the limit member 3.

[0044] The driving member 202 drives the threaded rod 2012 to rotate, and the rotation of the threaded rod 2012 drives the sliding blocks 2010 arranged on both sides of the center line of the threaded rod 2012 to move toward the middle or outward at the same time, ensuring that the vertical rod 201 is always located at the center position of the hot ring 7. When the measuring plate 204 contacts the outer wall or inner wall of the hot ring 7, the purpose of measuring the size of the outer ring or inner ring of the hot ring 7 is achieved, thereby improving the measurement efficiency and measurement quality of the hot ring 7 by the device.

[0045] As an optimization solution of this embodiment, Figure 1 As shown, it also includes a mounting block 102 , and the mounting block 102 is provided in plurality. The plurality of mounting blocks 102 are evenly distributed on the handle 5 , and the mounting blocks 102 are fixedly mounted on the handle 5 .

[0046] The installation block 102 can, on the one hand, strengthen the handle 5 , and on the other hand, connect the position-limiting member 3 with the handle 5 , thereby ensuring the normal operation of the position-limiting member 3 .

[0047] As an optimization solution of this embodiment, Figure 4As shown, the driving member 202 includes a worm wheel 208, a worm 209, a rotating rod 206 and a handle 2011. The worm wheel 208 is fixedly mounted on the threaded rod 2012, the worm 209 is arranged above the worm wheel 208, both ends of the worm 209 are rotatably mounted on the side walls of the mounting groove 207, and the worm 209 is meshed with the worm wheel 208, one end of the rotating rod 206 is fixedly mounted on the end of the worm 209, and the rotating rod 206 is rotatably mounted on the mounting block 102, and the handle 2011 is fixedly mounted on the other end of the rotating rod 206.

[0048] Rotating the handle 2011 drives the rotating rod 206 to rotate, the rotating rod 206 drives the worm 209 to rotate, the worm 209 drives the worm wheel 208 to rotate, the worm wheel 208 drives the threaded rod 2012 to rotate, the threaded rod 2012 drives the sliding block 2010 to approach the hot ring 7, the sliding block 2010 moves and drives the measuring plate 204 to move toward the hot ring 7, thereby achieving the purpose of measuring the size of the hot ring 7.

[0049] As an optimization solution of this embodiment, Figure 3 , Figure 5 As shown, strip holes 205 are opened on both sides of the center line of the cross bar 203, the threaded rod 2012 is set in the strip holes 205, and the sliding blocks 2010 are symmetrically arranged in the strip holes 205 on both sides of the center line of the cross bar 203, and the sliding blocks 2010 are slidably matched with the strip holes 205.

[0050] The provision of the strip-shaped hole 205 can guide the sliding block 2010 and prevent the sliding block 2010 from rotating during movement, thereby ensuring the measurement accuracy of the hot ring 7 by the device.

[0051] As an optimization solution of this embodiment, Figure 2As shown, the positioning member 1 includes a fixing rod 101, a rotating arm 109, a supporting arm 108, a lifting block 106, and a fixing block 6. The fixing rod 101 is fixedly mounted at the bottom of the vertical rod 201, and the fixing block 6 is fixedly mounted on the fixing rod 101. A mounting hole 103 is opened on the fixing rod 101, and a guide rod 104 and a spring 105 are arranged in the mounting hole 103. The lifting block 106 is slidably mounted on the fixing rod 101, and both ends of the guide rod 104 are fixedly mounted on the upper and lower side walls of the mounting hole 103. The lifting block 106 is slidably mounted on the guide rod 104, and the spring 105 is sleeved on the guide rod 104, and the spring 105 is located at the upper part of the lifting block 106 and the mounting hole 103. Between the side inner walls, the spring 105 is set to provide power for the lifting block 106 to reset, ensuring that the bottom of the rotating arm 109 can contact the inner wall of the hot ring 7 to achieve the purpose of positioning the device. The rotating arms 109 are provided with three, and the three rotating arms 109 are evenly distributed on the fixed block 6. The support arms 108 are provided with three, and the three support arms 108 correspond to the three rotating arms 109 one by one. The two ends of the support arm 108 are rotatably connected to the lifting block 106 and the rotating arm 109 respectively. The bottoms of the three rotating arms 109 contact the inner wall of the hot ring 7 to achieve the purpose of positioning the device, ensuring that the device is in the center position of the hot ring 7, and ensuring the accuracy of the device in measuring the hot ring 7.

[0052] The arrangement of the support arm 108, lifting block 106, guide rod 104, spring 105 and rotating arm 109 can ensure that the device can position hot ring parts 7 of different sizes, thereby measuring the dimensions of hot ring parts 7 of different sizes and ensuring the accuracy of the measurement results.

[0053] As an optimization solution of this embodiment, Figure 2 As shown, a rotating wheel 107 is provided at the end of the rotating arm 109 , and the rotating wheels 107 are symmetrically arranged on both sides of the center line of the rotating arm 109 , and the rotating wheel 107 is rotatably connected to the rotating arm 109 .

[0054] The provision of the rotating wheel 107 can reduce the friction between the support arm 108 and the inner wall of the hot ring 7, thereby improving the positioning efficiency of the positioning mechanism.

[0055] As an optimization solution of this embodiment, Figure 6As shown, the limiting member 3 includes a push-pull rod 301, a limiting rod 304, and a connecting rod 305. The limiting rod 304 is symmetrically arranged on both sides of the center line of the vertical pole 201, and the limiting rod 304 is rotatably installed on the vertical pole 201. The two ends of the connecting rod 305 are fixedly installed on the ends of the limiting rod 304 on both sides of the center line of the vertical pole 201. The push-pull rod 301 is slidably installed on the mounting block 102. A fixing column 303 is fixedly installed on the end of the push-pull rod 301. A waist-shaped hole 302 is opened on the limiting rod 304, and the fixing column 303 is slidably set in the waist-shaped hole 302.

[0056] The limit member 3 is used to limit the rotation of the limit rod 304, which is convenient for placing the positioning member 1 inside the hot ring members 7 of different sizes. The setting of the connecting rod 305 can limit the limit rod 304 and prevent the limit rod 304 from rotating under the action of the spring 105, thereby ensuring the normal operation of the limit member 3.

[0057] As an optimization solution of this embodiment, Figure 7 As shown, the blocking member 4 includes a column 401, a lifting plate 402 and a blocking plate 403. The column 401 is fixedly installed on the top of the rightmost mounting block 102, and the lifting plate 402 is slidably installed on the column 401. The blocking plate 403 is vertically arranged with the lifting plate 402, and the blocking plate 403 is arranged at the bottom of the lifting plate 402, and the blocking plate 403 cooperates with the end of the push-pull rod 301.

[0058] The blocking member 4 is provided to limit the push-pull rod 301, ensuring that the limit member 3 can limit the rotating arm 109, and preventing the rotating arm 109 from interfering with the side wall of the hot ring 7 when the positioning mechanism is placed inside the hot ring 7, thereby greatly ensuring the measurement quality and efficiency of the device for the hot ring 7.

[0059] As an optimization solution of this embodiment, Figure 7 As shown, a limiting groove 601 is formed on the right side wall of the rightmost mounting block 102 on the handle 5 , and the limiting groove 601 is slidably matched with the blocking plate 403 .

[0060] The setting of the limiting groove 601 can limit the blocking plate 403 and ensure the normal operation of the blocking plate 403.

[0061] like Figure 8 As shown, its working process is as follows:

[0062] Place the positioning member 1 into the middle of the hot ring member 7 so that the crossbar 203 on the measuring member 2 is placed on the top of the hot ring member 7;

[0063] The blocking plate 403 is pushed upward so that the blocking plate 403 is pushed out from the limiting groove 601 of the mounting block 102 until the blocking plate 403 is located at the top of the push-pull rod 301 and contacts the restriction of the blocking plate 403 on the push-pull rod 301. After the blocking plate 403 releases the restriction on the push-pull rod 301, the connecting rod 305 on the limiting rod 304 releases the restriction on the rotating arm 109. Under the action of the spring 105, the lifting block 106 is driven to move upward. The lifting block 106 moves upward and drives the supporting arm 108 to move upward. The supporting arm 108 moves upward and drives the rotating arm 109 to rotate around the connection between the rotating arm 109 and the fixed block 6. The rotating arm 109 rotates until the rotating wheel 107 installed at the end of the rotating arm 109 contacts the inner wall of the hot ring 7, until the rotating wheels 107 at the ends of the three rotating arms 109 all contact the inner wall of the hot ring 7.

[0064] The handle 2011 is rotated to drive the rotating rod 206 to rotate, the rotating rod 206 rotates to drive the worm 209 to rotate, the worm 209 rotates to drive the worm wheel 208 to rotate, the worm wheel 208 rotates to drive the threaded rod 2012 to rotate, the threaded rod 2012 rotates to drive the sliding block 2010 to move, the sliding block 2010 moves to drive the measuring plate 204 to move, and the measuring plate 204 moves to contact the outer wall or the outer wall of the hot ring 7;

[0065] Pushing the push-pull rod 301 drives the limit rod 304 to rotate. The rotation of the limit rod 304 drives the connecting rod 305 at the end of the limit rod 304 to contact the rotating arm 109, thereby driving the rotating arm 109 to rotate so that the rotating wheel 107 at the bottom of the rotating arm 109 moves toward the vertical rod 201. The staff takes the device out of the hot ring 7 through the handle 5. Finally, the staff measures the distance between the measuring plates 204 on the sliding blocks 2010 on both sides of the center line of the threaded rod 2012 to achieve the purpose of measuring the size of the hot ring 7.

[0066] The above contents are merely examples and explanations of the structure of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the scope defined by the structure of the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. A hot ring measuring device, comprising a positioning member, a measuring member, a handle, and a limit member, characterized in that: The measuring member includes a vertical pole, a cross bar, a driving member, a threaded rod, a sliding block and a measuring plate. The vertical pole is installed on the top of the positioning member, and a mounting groove is opened on the vertical pole. The driving member is arranged in the mounting groove, and the driving member cooperates with the threaded rod. The cross bar is installed on the vertical pole, and the threaded rod is installed on the cross bar. The threads on both sides of the center line of the threaded rod are in opposite directions. The sliding blocks are symmetrically arranged on both sides of the center line of the threaded rod, and the sliding blocks are threadedly matched with the threaded rod. The measuring plate is installed at the bottom of the sliding block, and the handle is installed on one side of the vertical pole. The limiter is arranged on the top of the vertical pole, and the limiter cooperates with the positioning member.

2. A hot ring measuring device according to claim 1, characterized in that: It also includes a mounting block, wherein a plurality of mounting blocks are provided, the plurality of mounting blocks are evenly distributed on the handle, and the mounting blocks are fixedly mounted on the handle.

3. A hot ring measuring device according to claim 2, characterized in that: The driving member includes a worm wheel, a worm, a rotating rod and a handle. The worm wheel is fixedly mounted on the threaded rod, the worm is arranged above the worm wheel, both ends of the worm are rotatably mounted on the side walls of the mounting groove, and the worm is meshed with the worm wheel, one end of the rotating rod is fixedly mounted on the end of the worm, and the rotating rod is rotatably mounted on the mounting block, and the handle is fixedly mounted on the other end of the rotating rod.

4. A hot ring measuring device according to claim 3, characterized in that: Strip holes are opened on both sides of the center line of the cross bar, the threaded rods are arranged in the strip holes, the sliding blocks are symmetrically arranged in the strip holes on both sides of the center line of the cross bar, and the sliding blocks are slidably matched with the strip holes.

5. A hot ring measuring device according to claim 2, characterized in that: The positioning member includes a fixed rod, a rotating arm, a supporting arm, a lifting block, and a fixed block. The fixed rod is fixedly mounted at the bottom of the vertical rod, the fixed block is fixedly mounted on the fixed rod, a mounting hole is opened on the fixed rod, a guide rod and a spring are arranged in the mounting hole, the lifting block is slidably mounted on the fixed rod, both ends of the guide rod are fixedly mounted on the upper and lower side walls of the mounting hole, the lifting block is slidably mounted on the guide rod, the spring is sleeved on the guide rod, and the spring is located between the lifting block and the upper inner wall of the mounting hole, three rotating arms are arranged, and the three rotating arms are evenly distributed on the fixed block, three supporting arms are arranged, and the three supporting arms correspond to the three rotating arms one by one, and the two ends of the supporting arm are rotatably connected to the lifting block and the rotating arm respectively.

6. A hot ring measuring device according to claim 5, characterized in that: A rotating wheel is arranged at the end of the rotating arm. The rotating wheels are symmetrically arranged on both sides of the center line of the rotating arm, and the rotating wheel is rotatably connected to the rotating arm.

7. A hot ring measuring device according to claim 6, characterized in that: The limiting member includes a push-pull rod, a limiting rod, and a connecting rod. The limiting rods are symmetrically arranged on both sides of the center line of the vertical pole, and the limiting rods are rotatably installed on the vertical pole. The two ends of the connecting rod are fixedly installed on the ends of the limiting rods on both sides of the center line of the vertical pole. The push-pull rod is slidably installed on the mounting block. A fixing column is fixedly installed on the end of the push-pull rod. A waist-shaped hole is opened on the limiting rod, and the fixing column is slidably arranged in the waist-shaped hole.

8. A hot ring measuring device according to claim 7, characterized in that: It also includes a blocking member, which includes a column, a lifting plate and a blocking plate. The column is fixedly installed on the top of the rightmost mounting block, and the lifting plate is slidably installed on the column. The blocking plate is vertically arranged with the lifting plate, and the blocking plate is arranged at the bottom of the lifting plate, and the blocking plate cooperates with the end of the push-pull rod.

9. A hot ring measuring device according to claim 8, characterized in that: A limiting groove is provided on the right side wall of the rightmost mounting block on the handle, and the limiting groove is slidably matched with the blocking plate.

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