Deviation correction type non-ferrous metal forging rolling thickness detector

Abstract

The invention discloses a deviation rectification type non-ferrous metal forge piece rolling thickness detector, and relates to the thickness detection field, the deviation rectification type non-ferrous metal forge piece rolling thickness detector comprises a support frame and a mounting table, the mounting table is mounted above the support frame, a mounting seat is fixed above the mounting table, and the front side of the mounting seat is provided with a first laser measuring instrument; a second laser measuring instrument is arranged below the first laser measuring instrument, and the thickness of the product is measured through the first laser measuring instrument and the second laser measuring instrument. According to the deviation rectification type non-ferrous metal forge piece rolling thickness detector, the positions of the upper surface and the lower surface of a product can be measured at the same time through the arrangement of the two sets of laser measuring instruments, the thickness of the product can be measured by subtracting the numerical value from the distance between the two sets of laser measuring instruments, the upwarp or upheaval position of the product can be effectively measured, and measurement deviation rectification is achieved; in cooperation with the supporting and guiding functions of the first supporting seat and the second supporting seat, the product can be straightened and conveyed, and the measuring efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of thickness detection, and specifically to a deviation-correcting rolling thickness detector for non-ferrous metal forgings. Background Art

[0002] When performing rolling treatment on non-ferrous metal forgings, the rolling thickness of the product is an important indicator reflecting the rolling quality of the product. When detecting the rolling thickness of the product, a non-contact optical thickness detector such as a laser can be used for detection.

[0003] Prior Art 1 (a Chinese patent with the application number CN201811103276.7 and published on December 25, 2018) is a method for detecting the thickness of a thin film. The method includes the following steps: S1, fixing the thin film to be detected on a thin film thickness detector; S2, starting the thin film thickness detector in S1 to detect the thickness of the thin film; S3, after the detection in S2 is completed, heating the detected thin film and using a temperature sensor to detect the temperature of the thin film. When the overall ambient temperature of the thin film reaches a preset value, detecting the thickness of the thin film again; S4, changing the temperature of the thin film and measuring the thicknesses of multiple groups of thin films at different temperatures. This method realizes the measurement of the thickness of the thin film by using a thin film thickness detector, and realizes the measurement of the thickness of the thin film at different temperatures by changing the overall temperature around the thin film, so as to facilitate the study of the influence law of temperature on the thin film; Prior Art 2 (a Chinese patent with the application number CN201821805081.2 and published on August 6, 2019) is a copper flat belt thickness detection device on a rolling mill, including a rolling mill area, a copper flat belt, a base frame, and a copper belt locator. A channel is provided on the upper part of the base frame; displacement sensors for the thickness and width of the copper flat belt are provided on the four sides of the channel; a horizontal transparent substrate passes through the channel; the copper flat belt is located above the transparent substrate; the copper belt locator is located above the copper flat belt and is arranged close to the vertical plane of the displacement sensor; the copper belt locator includes a micro motor, a gear, and a vertical plate with tooth grooves; a horizontal plate with a rotating roller is vertically fixed to the lower end surface of the vertical plate; the roller abuts against the copper flat belt; a cooling and cleaning mechanism and a water remover are successively arranged between the rolling mill area and the base frame.

[0004] When the current thickness detector detects the rolling thickness of forgings, due to the uneven shapes of the castings, there will be a large error when directly measuring the surface distance of the castings, and it is also difficult to accurately measure when the casting gradually warps locally. Moreover, when measuring, it is generally for local points, and when measuring the thickness of positions such as the side of the product, the product position needs to be adjusted manually continuously, and the measurement efficiency is low. Summary of the Invention

[0005] The object of the present invention is to provide a deviation-correcting type rolling thickness detector for non-ferrous metal forgings, so as to solve the problems in the above-mentioned background technology. When the current thickness detector measures the rolling thickness of forgings, due to the uneven heights of the casting shapes, there will be large errors when directly measuring the surface distance of the casting, and it is also difficult to accurately measure when the casting gradually warps locally. Moreover, when measuring, it is generally carried out for local points, and when measuring the thickness of positions such as the side of the product, it is necessary to manually adjust the position of the product continuously.

[0006] To achieve the above object, the present invention provides the following technical solution: A deviation-correcting type rolling thickness detector for non-ferrous metal forgings, including a support frame and an installation table. The installation table is installed above the support frame. An installation seat is fixed above the installation table, and a first laser measuring instrument is arranged on the front side of the installation seat. And a second laser measuring instrument is arranged below the first laser measuring instrument. The product is measured for thickness by passing through the first laser measuring instrument and the second laser measuring instrument. A first support seat is arranged below the first laser measuring instrument. The side view cross-section of the first support seat is designed in an "L" shape. And a second support seat is arranged on the front side of the first support seat. And conveying mechanisms are arranged on the inner sides of the first support seat and the second support seat to provide a horizontal conveying effect for the workpiece. A front-back driving mechanism is arranged below the first support seat to control the first support seat to move horizontally. And an adjustable connecting mechanism is arranged between the first support seat and the second support seat.

[0007] Further optimizing the technical solution of the present invention, a protective cover is arranged above the installation table. A control switch is arranged on the surface of the protective cover. And a display is arranged above the protective cover.

[0008] Further optimizing the technical solution of the present invention, openings are arranged in the middle parts of the first support seat and the second support seat to provide a measuring space for the second laser measuring instrument.

[0009] Further optimizing the technical solution of the present invention, guide frames are connected to the left sides of the first support seat and the second support seat respectively. The guide frames are designed in an inclined shape. And a collection box is arranged on the right side of the first support seat.

[0010] Further optimizing the technical solution of the present invention, the adjustable connecting mechanism includes a base, a connecting block, a guide rod and a first telescopic device;

[0011] The base is fixed below the first support seat;

[0012] The connecting block is fixed below the second support seat;

[0013] The guide rod is fixed on the front side of the base, and the guide rod and the connecting block form a nested connection;

[0014] The first expander is installed on the front side of the base, and the front end of the first expander is connected to the connecting block.

[0015] To further optimize this technical solution, the front and rear drive mechanism includes a movable plate, a first spring, a movable disk, a mounting shaft, and a transmission mechanism;

[0016] The movable plate is fixed below the base, and a front and rear sliding structure is formed between the movable plate and the mounting table;

[0017] The first spring is fixed on the rear side of the movable plate to provide a forward thrust for the movable plate;

[0018] The movable disk is arranged on the front side of the movable plate;

[0019] The mounting shaft is rotatably installed inside the mounting table, and the mounting shaft is fixedly connected to the movable disk, and the center of the mounting shaft and the center of the movable disk are arranged offset;

[0020] The transmission mechanism is connected to the mounting shaft to provide power for the mounting shaft.

[0021] To further optimize this technical solution, an adjustment block is arranged on the outer side of the movable disk, and an adjustment mechanism is connected to the inner side of the adjustment block.

[0022] To further optimize this technical solution, the adjustment mechanism includes a movable block, a second spring, a control block, a connecting head, a connecting ring, a sliding groove, and a second expander;

[0023] The movable block is fixed on the inner side of the adjustment block. A front and rear sliding structure is formed between the movable block and the movable disk, and the end of the movable block is designed with an open structure;

[0024] The second spring is arranged on the outer side of the movable block to provide a thrust for the movable block;

[0025] The control block is arranged below the movable block, and the upper part of the control block is designed with an inclined structure, and a vertical sliding structure is formed between the control block and the movable disk;

[0026] The connecting head is fixed below the control block, and the lower part of the connecting head is designed with an enlarged structure;

[0027] The connecting ring is arranged below the connecting head;

[0028] The sliding groove is opened on the upper surface of the connecting ring, and a sliding connection is formed between the connecting head and the sliding groove;

[0029] The second expander is arranged below the connecting ring to control the movement of the connecting ring.

[0030] To further optimize this technical solution, cleaning brushes are provided on the left side of the first laser measuring instrument and the second laser measuring instrument. The cleaning brushes are symmetrically arranged up and down, and a connecting shaft is fixed at the front end of the cleaning brush. The front end of the connecting shaft is rotatably connected to a fixed seat, and the fixed seat is fixedly connected to the mounting table. The front end of the connecting shaft is connected to a motor, and a transmission gear is fixed on the surface of the connecting shaft. The two connecting shafts are meshed with each other through the transmission gears.

[0031] To further optimize this technical solution, the transmission mechanism includes a transmission rod and bevel gears. The transmission rod is installed above the mounting shaft, and a bevel gear is fixed at the upper end of the transmission rod. The transmission rod is meshed with the connecting shaft through the bevel gear.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] (1) By setting two laser measuring instruments, the upper and lower surface positions of the product can be measured simultaneously. Subtracting this value from the distance between the two laser measuring instruments can measure the thickness of the product, and the warped or bulged positions of the product can also be effectively measured, realizing measurement deviation correction. With the support and guiding effects of the first support seat and the second support seat, the product can be correctly conveyed, improving the measurement efficiency.

[0034] (2) By moving the first support seat and the second support seat forward and backward, the product can be synchronously driven to move, so that the surface of the product can be fully measured. With the conveyance of the product, the product can be measured for thickness in multiple directions, without manual adjustment of the product position, making the measurement more convenient.

[0035] (3) By moving the adjustment block, the moving distance of the first support seat can be controlled, so as to adapt to the thickness detection of products with different widths. Moreover, the distance between the second support seat and the first support seat can be adjusted, facilitating the correction and guidance of the product.

[0036] (4) By setting the cleaning brushes, the surface of the product can be cleaned, and the position of the cleaning brushes remains unchanged when the product moves forward and backward, so that the detection position can always be kept clean, improving the accuracy of subsequent detection data.

[0037] (5) Through the meshing transmission effect between the connecting shaft and the transmission shaft, when the cleaning brushes work, the movable disk can be synchronously driven to rotate, providing power for the forward and backward movement of the first support seat and the second support seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0039] Figure 2 is a side view structural schematic diagram of the present invention;

[0040] Figure 3Schematic diagram of the structure above the mounting table of the present invention;

[0041] Figure 4 Schematic three-dimensional structure diagram of the mounting table of the present invention;

[0042] Figure 5 Front view structure diagram of the first laser measuring instrument and the second laser measuring instrument of the present invention;

[0043] Figure 6 Top view structure diagram of the first support base of the present invention;

[0044] Figure 7 Bottom view structure diagram of the first support base of the present invention;

[0045] Figure 8 Side sectional structure diagram of the mounting table of the present invention;

[0046] Figure 9 For the present invention Figure 8 Enlarged structure diagram at position a in;

[0047] Figure 10 Top view structure diagram of the movable disk of the present invention;

[0048] Figure 11 Top sectional structure diagram of the movable disk of the present invention;

[0049] Figure 12 Side sectional structure diagram of the first support base of the present invention.

[0050] In the figure: 1, support frame; 2, mounting table; 3, protective cover; 4, display; 5, mounting seat; 6, first laser measuring instrument; 7, second laser measuring instrument; 8, first support base; 9, second support base; 10, guiding frame; 11, collection box; 12, auxiliary support bracket; 13, conveying mechanism; 14, base; 15, connecting block; 16, guide rod; 17, first telescopic device; 18, movable plate; 19, first spring; 20, movable disk; 21, mounting shaft; 22, adjusting block; 23, movable block; 24, second spring; 25, control block; 26, connecting head; 27, connecting ring; 28, chute; 29, second telescopic device; 30, transmission rod; 31, cleaning brush; 32, connecting shaft; 33, fixed seat; 34, motor; 35, transmission gear; 36, bevel gear. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0052] Please refer to Figures 1-12 Figures 1-12 , the present invention provides the following technical solution: A deviation-correcting non-ferrous metal forging rolling thickness detector, which includes a support frame 1 and a mounting table 2. The mounting table 2 is installed above the support frame 1. A mounting seat 5 is fixed above the mounting table 2. A first laser measuring instrument 6 is arranged on the front side of the mounting seat 5. A second laser measuring instrument 7 is arranged below the first laser measuring instrument 6. The product is measured for thickness by the first laser measuring instrument 6 and the second laser measuring instrument 7. A first support seat 8 is arranged below the first laser measuring instrument 6. The side view cross-section of the first support seat 8 is designed in an "L" shape. A second support seat 9 is arranged on the front side of the first support seat 8. Conveyor mechanisms 13 are arranged on the inner sides of the first support seat 8 and the second support seat 9 to provide a horizontal conveying effect for the workpiece. A front-back driving mechanism is arranged below the first support seat 8 to control the first support seat 8 to move horizontally. An adjustable connecting mechanism is arranged between the first support seat 8 and the second support seat 9. A protective cover 3 is arranged above the mounting table 2. A control switch is arranged on the surface of the protective cover 3. A display 4 is arranged above the protective cover 3. Openings are arranged in the middle of the first support seat 8 and the second support seat 9 to provide a measuring space for the second laser measuring instrument 7.

[0053] After placing the product to be measured on the first support seat 8 and the second support seat 9, the conveyor mechanism 13 drives the product to move on the first support seat 8 and the second support seat 9, so that the product passes through the first laser measuring instrument 6 and the second laser measuring instrument 7. The first laser measuring instrument 6 measures the distance between the upper surface of the product and the first laser measuring instrument 6, and the measured data is h1. The second laser measuring instrument 7 measures the distance between the lower surface of the product and the second laser measuring instrument 7, and the measured data is h2. The distance between the first laser measuring instrument 6 and the second laser measuring instrument 7 is h3. The thickness of the workpiece can be calculated by h3 - h1 - h2. And even if the workpiece warps, the thickness of this position can be accurately measured. During the measurement, the first support seat 8 and the second support seat 9 can also be controlled to move back and forth to change the measurement position, and combined with the horizontal conveying of the product, the thickness of the product surface can be fully measured.

[0054] On the basis of the above embodiments, it is further disclosed that guide frames 10 are connected to the left sides of the first support base 8 and the second support base 9. The guide frames 10 are designed with an inclined structure. A collection box 11 is arranged on the right side of the first support base 8. The adjustable connection mechanism includes a base 14, a connection block 15, a guide rod 16, and a first telescopic device 17. The base 14 is fixed below the first support base 8. The connection block 15 is fixed below the second support base 9. The guide rod 16 is fixed on the front side of the base 14. A nested connection is formed between the guide rod 16 and the connection block 15. The first telescopic device 17 is installed on the front side of the base 14, and the front end of the first telescopic device 17 is connected to the connection block 15. The front-back driving mechanism includes a movable plate 18, a first spring 19, a movable disk 20, a mounting shaft 21, and a transmission mechanism. The movable plate 18 is fixed below the base 14, and a front-back sliding structure is formed between the movable plate 18 and the mounting table 2. The first spring 19 is fixed on the rear side of the movable plate 18 to provide a forward thrust for the movable plate 18. The movable disk 20 is arranged on the front side of the movable plate 18. The mounting shaft 21 is rotatably installed inside the mounting table 2, and the mounting shaft 21 is fixedly connected to the movable disk 20. The center of the mounting shaft 21 and the center of the movable disk 20 are arranged offset from each other. The transmission mechanism is connected to the mounting shaft 21 to provide power for the mounting shaft 21.

[0055] An auxiliary support bracket 12 is further arranged below the first support base 8 and the second support base 9 to provide support for them and make their subsequent operation more stable. The second support base 9 can be controlled to move through the first telescopic device 17, and the distance between the second support base 9 and the first support base 8 can be adjusted to adapt to the detection of products with different widths, so that the products can be stably conveyed. The eccentric rotation of the movable disk 20 can squeeze the movable plate 18, and cooperate with the first spring 19 to enable the movable plate 18 to move back and forth, thereby driving the first support base 8 and the second support base 9 to move, so that the product moves below the first laser measuring instrument 6 and changes the measurement position.

[0056] On the basis of the above embodiments, it is further disclosed that an adjusting block 22 is provided on the outer side of the movable disk 20, and an adjusting mechanism is connected to the inner side of the adjusting block 22. The adjusting mechanism includes a movable block 23, a second spring 24, a control block 25, a connecting head 26, a connecting ring 27, a chute 28, and a second telescopic device 29. The movable block 23 is fixed to the inner side of the adjusting block 22. A front-back sliding structure is formed between the movable block 23 and the movable disk 20, and the end of the movable block 23 is designed with an open structure. The second spring 24 is arranged on the outer side of the movable block 23 to provide a thrust force for the movable block 23. The control block 25 is arranged below the movable block 23, and the upper part of the control block 25 is designed with an inclined structure. A vertical sliding structure is formed between the control block 25 and the movable disk 20. The connecting head 26 is fixed to the lower part of the control block 25, and the lower part of the connecting head 26 is designed with an enlarged structure. The connecting ring 27 is arranged below the connecting head 26. The chute 28 is opened on the upper surface of the connecting ring 27. A sliding connection is formed between the connecting head 26 and the chute 28. The second telescopic device 29 is arranged below the connecting ring 27 to control the movement of the connecting ring 27. A cleaning brush 31 is arranged on the left side of the first laser measuring instrument 6 and the second laser measuring instrument 7. The cleaning brushes 31 are arranged symmetrically up and down. The front end of the cleaning brush 31 is fixed with a connecting shaft 32. The front end of the connecting shaft 32 is rotatably connected to a fixed seat 33. The fixed seat 33 is fixedly connected to the mounting table 2. The front end of the connecting shaft 32 is connected with a motor 34, and a transmission gear 35 is fixed on the surface of the connecting shaft 32. The two connecting shafts 32 are meshed with each other through the transmission gear 35. The transmission mechanism includes a transmission rod 30 and a bevel gear 36. The transmission rod 30 is installed above the mounting shaft 21, and the upper end of the transmission rod 30 is fixed with a bevel gear 36. The transmission rod 30 is meshed with the connecting shaft 32 through the bevel gear 36.

[0057] By adjusting the position of the adjusting block 22, the driving distance of the movable disk 20 to the movable plate 18 can be changed, so as to adjust the front-back movement amplitude of the first support seat 8 to adapt to the product detection requirements of different widths. When adjusting the adjusting block 22, the second telescopic device 29 can be used to control the connecting ring 27 to move upward, the connecting ring 27 pushes the connecting head 26 and the control block 25 to move upward, the control block 25 squeezes the movable block 23 to drive the adjusting block 22 to move. When the movable disk 20 rotates subsequently, the connecting head 26 will slide in the chute 28, so that the movement amplitudes of the first support seat 8 and the second support seat 9 can be adjusted steplessly. The motor 34 can drive the connecting shaft 32 to drive the cleaning brush 31 to clean the product surface. At the same time, the connecting shaft 32 can drive the transmission rod 30 to rotate through the bevel gear 36, so as to drive the mounting shaft 21 to rotate and provide rotational power for the movable disk 20.

[0058] The content not detailedly described in this specification belongs to the prior art well-known to those skilled in the art.

[0059] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the connecting words such as the terms "set" and "installed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A caliper for detecting the rolling thickness of a corrective non-ferrous metal forging, comprising a support frame (1) and a mounting table (2), and the mounting table (2) is installed above the support frame (1); It is characterized in that: Above the mounting table (2), a mounting seat (5) is fixed. On the front side of the mounting seat (5), a first laser measuring instrument (6) is provided. Below the first laser measuring instrument (6), a second laser measuring instrument (7) is provided. The product passes through the first laser measuring instrument (6) and the second laser measuring instrument (7) for thickness measurement. Below the first laser measuring instrument (6), a first support seat (8) is provided. The side view cross-section of the first support seat (8) is designed in an "L" shape. On the front side of the first support seat (8), a second support seat (9) is provided. Inside the first support seat (8) and the second support seat (9), a conveying mechanism (13) is provided to provide a horizontal conveying effect for the workpiece. Below the first support seat (8), a front-back driving mechanism is provided to control the first support seat (8) to move horizontally. An adjustable connecting mechanism is provided between the first support seat (8) and the second support seat (9).

2. The caliper for detecting the rolling thickness of a deviation-correcting non-ferrous metal forging according to claim 1, wherein: Above the mounting table (2), a protective cover (3) is provided. On the surface of the protective cover (3), a control switch is provided. Above the protective cover (3), a display (4) is provided.

3. The thickness detector for rolling non-ferrous metal forgings with deviation correction according to claim 1, wherein: Openings are provided in the middle of the first support seat (8) and the second support seat (9) to provide a measurement space for the second laser measuring instrument (7).

4. The caliper for detecting the rolling thickness of a deviation-correcting non-ferrous metal forging according to claim 1, wherein: On the left side of the first support seat (8) and the second support seat (9), a guiding frame (10) is connected. The guiding frame (10) is designed in an inclined shape. On the right side of the first support seat (8), a collection box (11) is provided.

5. A caliper for detecting the rolling thickness of a deviation-correcting non-ferrous metal forging according to claim 1, wherein: The adjustable connecting mechanism includes a base (14), a connecting block (15), a guiding rod (16) and a first telescopic device (17); The base (14) is fixed below the first support seat (8); The connecting block (15) is fixed below the second support seat (9); The guiding rod (16) is fixed on the front side of the base (14), and a nested connection is formed between the guiding rod (16) and the connecting block (15); The first telescopic device (17) is installed on the front side of the base (14), and the front end of the first telescopic device (17) is connected to the connecting block (15).

6. The thickness detector for rolling non-ferrous metal forgings with deviation correction according to claim 4, wherein: The front-back driving mechanism includes a movable plate (18), a first spring (19), a movable disk (20), a mounting shaft (21) and a transmission mechanism; The movable plate (18) is fixed below the base (14), and a front-back sliding structure is formed between the movable plate (18) and the mounting table (2); The first spring (19) is fixed on the rear side of the movable plate (18) to provide a forward thrust for the movable plate (18); The movable disk (20) is arranged on the front side of the movable plate (18); The mounting shaft (21) is rotatably installed inside the mounting table (2), and the mounting shaft (21) is fixedly connected to the movable disk (20), and the center of the mounting shaft (21) and the center of the movable disk (20) are arranged offset; The transmission mechanism is connected to the mounting shaft (21) to provide power for the mounting shaft (21).

7. The thickness detector for rolling non-ferrous metal forgings with deviation correction according to claim 6, characterized in that: An adjusting block (22) is arranged on the outer side of the movable disk (20), and an adjusting mechanism is connected to the inner side of the adjusting block (22).

8. The thickness detector for rolling non-ferrous metal forgings with deviation correction according to claim 7, wherein: The adjusting mechanism includes a movable block (23), a second spring (24), a control block (25), a connecting head (26), a connecting ring (27), a sliding groove (28) and a second telescopic device (29); The movable block (23) is fixed to the inner side of the adjusting block (22). A front-back sliding structure is formed between the movable block (23) and the movable disk (20), and the end of the movable block (23) is designed with an open structure; The second spring (24) is arranged on the outer side of the movable block (23) to provide a thrust force for the movable block (23); The control block (25) is arranged below the movable block (23). The upper part of the control block (25) is designed with an inclined structure, and an up-down sliding structure is formed between the control block (25) and the movable disk (20); The connecting head (26) is fixed to the lower part of the control block (25), and the lower part of the connecting head (26) is designed with an enlarged structure; The connecting ring (27) is arranged below the connecting head (26); The sliding groove (28) is formed in the upper surface of the connecting ring (27). A sliding connection is formed between the connecting head (26) and the sliding groove (28); The second telescopic device (29) is arranged below the connecting ring (27) to control the movement of the connecting ring (27).

9. A caliper thickness detector for a rectifying non-ferrous metal forging, according to claim 6, characterized in that: A cleaning brush (31) is arranged on the left side of the first laser measuring instrument (6) and the second laser measuring instrument (7). The cleaning brushes (31) are symmetrically arranged up and down. A connecting shaft (32) is fixed to the front end of the cleaning brush (31). The front end of the connecting shaft (32) is rotatably connected to a fixed seat (33). The fixed seat (33) is fixedly connected to the mounting table (2). The front end of the connecting shaft (32) is connected to a motor (34), and a transmission gear (35) is fixed to the surface of the connecting shaft (32). The two connecting shafts (32) are meshed with each other through the transmission gear (35).

10. A caliper for detecting the rolling thickness of a rectifying non-ferrous metal forging according to claim 9, characterized in that: The transmission mechanism includes a transmission rod (30) and a bevel gear (36). The transmission rod (30) is installed above the mounting shaft (21), and a bevel gear (36) is fixed to the upper end of the transmission rod (30). The transmission rod (30) is meshed with the connecting shaft (32) through the bevel gear (36).

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