Auxiliary measuring tool for roller profile measuring instrument

Abstract

The utility model discloses an auxiliary measuring tool for a roller profile measuring instrument, and relates to the field of bearing technology detection. A through convex groove is formed in the upper end face of the workbench in the left-right direction. The two pieces of V-shaped iron are arranged side by side left and right and arranged in the front-back direction. The screw sliding table comprises a cuboid iron block, a left square support and a right square support on the left and right sides of the upper end of the cuboid iron block, the right square support is lower than the left square support, the lower portion of the left end of the workbench is connected with the upper end of the left square support through a hinge structure, and the lower portion of the right end of the workbench is tightly attached to the upper end of the right square support. A screw rod and a sliding rod are arranged between the left square bracket and the cuboid iron block right square bracket; a bearing outer ring is fixedly connected with the inner side of a bearing hole formed in the side surface of the right side of the left square bracket; the supporting block is located between the left square support and the right square support. The beneficial effect of the utility model is that the profile measuring instrument can measure conveniently.

Description

Technical Field

[0001] The utility model relates to the field of bearing process technology detection, in particular to a measuring auxiliary tool for a roller profile measuring instrument. Background Art

[0002] In order to ensure good contact between the bearing roller and the raceway surface and improve the quality of the bearing roller parts, it is necessary to measure the roller surface profile to ensure the accuracy of the roller raceway. When the roller surface profile is currently detected, the outer diameter profile and chamfer of the roller need to be inspected. Generally, a surface profiler is used for measurement. During measurement, the measured surface needs to be adjusted to a horizontal position with the help of an angle adjustment device before measurement. At present, during measurement, the roller is first placed on the workbench and fixed by clamps on both sides. Depending on the type of roller, pads are used to adjust the roller angle, which is inefficient and poses a safety hazard. Therefore, the measuring device is improved to improve the measurement efficiency and safety of the roller. Utility Model Content

[0003] The utility model aims to provide a measuring auxiliary tool for a roller profile measuring instrument to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A measuring auxiliary tooling of a roller profile measuring instrument comprises a V-shaped iron, a workbench and a screw slide; wherein, the workbench is a rectangular platform arranged in the left and right directions, the end face of the lower end of the rectangular parallelepiped is inclined in the left and right directions, and the length of the end face of the right end of the rectangular parallelepiped platform in the up and down directions is greater than the length of the end face of the right end of the rectangular parallelepiped platform in the up and down directions; a convex groove is arranged in the left and right directions on the upper end face of the upper end of the workbench, and the convex groove runs through the left and right ends of the workbench; two V-shaped irons are arranged side by side on the left and right and each V-shaped iron is arranged in the front and back directions, and the front and rear lower ends of the V-shaped irons are fixed to the convex groove of the workbench by a bolt structure; the screw slide comprises a rectangular iron block arranged in the left and right directions, and a left square bracket and a right square bracket are respectively arranged on the left and right sides of the upper end of the rectangular iron block, and the height of the right square bracket is smaller than that of the left square bracket, and the lower left end of the workbench is connected to the upper end of the left square bracket by a hinge structure, and the lower right end of the workbench is tightly attached to the upper end of the right square bracket; the left square bracket and the right square bracket of the rectangular iron block A screw and a sliding rod are provided between the frames, and the sliding rod is located directly below the screw; the left end of the screw is sleeved in the inner hole of the bearing and fixed, the outer ring of the bearing is fixedly connected to the inner side of the bearing hole provided on the right side of the left square bracket, and the right square bracket itself is provided with a through hole along the left and right directions, and a bearing is fixedly sleeved in the through hole, and the right end of the screw passes through the middle hole of the bearing on the right square bracket and is fixedly connected to the left end of a rotating handle spindle, and the left and right ends of the sliding rod are respectively fixedly connected to the right side of the left square bracket and the left side of the right square bracket; a supporting block is located between the left square bracket and the right square bracket, the upper end of the supporting block is against the lower end of the workbench, and the lower end of the supporting block is fixedly connected to the upper end of the connecting block, a through threaded hole is provided in the middle of the connecting block, the through threaded hole is sleeved on the screw and the inner thread of the threaded hole is engaged with the outer thread of the screw, and a through hole is provided at the lower part of the connecting block, the sliding rod passes through the through hole at the lower part of the connecting block, the side of the sliding rod is coated with lubricating fluid, and the gap between the side of the sliding rod and the inner side of the through hole is less than 0.1 mm.

[0006] As a further solution of the utility model: the V-shaped iron includes a square iron block arranged along the front-to-back direction, and an open-loop and penetrating isosceles triangle opening is opened along the left and right sides of the middle of the square iron block, the large end of the isosceles triangle opening faces upward and the large end of the isosceles triangle opening is coplanar with the upper end of the square iron block; pads are provided on the two triangular isosceles sides of the isosceles triangle opening itself, and the pads are fixed to the two triangular isosceles sides of the isosceles triangle opening itself by a bolt structure; the lower end of the square iron block is fixedly connected to the middle of the upper end of a rectangular iron arranged flat along the front-to-back direction, and the rectangular iron is fixed to the convex groove on the workbench by a bolt structure.

[0007] As a further solution of the utility model: the convex groove is a groove with a convex-shaped cross-section, and the width of the upper opening of the convex groove itself is smaller than the width of the bottom of the convex groove itself; the rectangular iron is fixed to the convex groove on the workbench by a bolt structure, and its specific bolt structure is that there are symmetrical through threaded holes on the left and right sides of the upper end of the rectangular iron, the bolt rod of the bolt itself passes through the threaded holes from bottom to top and is fixed with a nut, the nut of the bolt itself is located below the bolt rod and the nut is located below the inside of the convex groove, the outer diameter of the nut is larger than the width of the upper opening of the convex groove, and the upper end of the nut is against the inner wall of the convex groove.

[0008] As a further solution of the utility model: scales are symmetrically arranged on the front and rear sides of the upper end of the workbench, and the left and right ends of the scales are coplanar with the left and right ends of the workbench. The two scales are arranged along the left and right directions and are respectively located on the front and back sides of the V-shaped iron, and the scale numbers on the scale plates of the two scales themselves are in opposite directions from small to large; the lower end face of the rectangular parallelepiped of the workbench itself is an arc surface that is higher on the left and lower on the right and tilted downward along the left and right directions; the upper end face of the supporting block is actually a semicircular arc surface.

[0009] As a further solution of the utility model: the lower end of the connecting block is against the upper end of the screw slide, and a convex groove penetrating the two ends of the rectangular iron block is arranged in the middle of the upper end of the rectangular iron block of the screw slide along the left and right directions. The cross-sectional shape of the convex groove itself is convex, the small end of the convex shape faces upward, and the convex upper end opening is coplanar with the upper end of the rectangular iron block; a convex block with a length of 1-2 cm and a convex cross-sectional shape is embedded in the convex groove along the length direction, and the front side, rear side and lower end of the convex block itself are all in contact with the convex groove. The wall is close to the wall, the small end of the convex block extends out from the opening at the upper end of the convex groove and is fixedly connected to the middle part of the lower end of a positioning block. The positioning block is a rectangular iron plate arranged along the front and rear directions, the right side of the rectangular iron plate is against the left side below the connecting block, the front and rear ends of the rectangular iron plate are coplanar with the front and rear ends of the rectangular iron block of the screw slide itself, the width of the rectangular iron plate is the same as the length of the convex block below, threaded holes are provided on the front and rear sides of the upper end of the rectangular iron plate, and the screw of the screw itself is against the upper end surface of the screw slide through the threaded holes on the rectangular iron plate.

[0010] As a further solution of the utility model: the positioning block itself is provided with a through threaded hole along the middle of the left and right sides, and a threaded hole is provided on the left side of the lower end of the side connection block. A bolt itself passes through the threaded hole of the positioning block and is inserted into the threaded hole on the left side of the connecting block for fixation.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The beneficial effect of the present invention is that the screw is driven to spin by rotating the handle of the screw slide itself, thereby moving the connecting block and the supporting block to the left or right, thereby changing the horizontal angle of the upper end of the workbench, and keeping the side of the tapered roller placed on the V-shaped iron of the workbench horizontal, so as to facilitate the measurement of the contour measuring instrument; at the same time, the present invention realizes the relatively random placement of the roller on the V-shaped iron in the left and right directions, saving manual adjustment time and improving efficiency; compared with traditional tools, the measuring auxiliary tooling of the roller contour measuring instrument of the present invention can conveniently measure rollers of smaller sizes and expand the measurement range. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view structural diagram of a roller profile measuring instrument measuring auxiliary tooling of the utility model;

[0014] Figure 2 It is a schematic diagram of the left side or right side structure of a workbench and a V-shaped iron in a measuring auxiliary tooling of a roller profile measuring instrument of the utility model;

[0015] In the figure: 1 screw slide; 101 support block; 102 positioning block; 103 hinge structure; 104 rectangular iron block; 105 rotating handle; 106 screw; 107 slide bar; 2 workbench; 201 scale; 202 convex groove; 3 V-shaped iron; 301 square iron block; 302 rectangular iron; 303 bolt structure; 4 roller. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model; in the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", "top", "bottom", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0017] Please refer to the legend. In the embodiment of the utility model, a roller 4 profile measuring instrument measurement auxiliary tooling includes a V-shaped iron, a workbench 2, and a screw slide 1; wherein the workbench 2 is a rectangular platform arranged along the left-right direction, the lower end face of the rectangular parallelepiped is inclined along the left-right direction, and the length of the right end face of the rectangular parallelepiped platform along the up-down direction is greater than the length of the right end face of the rectangular parallelepiped platform along the up-down direction; a convex groove 202 is arranged on the upper end face of the workbench 2 in the left-right direction, and the convex groove 202 runs through the left and right ends of the workbench 2; two V-shaped irons 3 are arranged side by side on the left and right, and each V-shaped iron 3 is arranged along the front-back direction, and the front and rear lower ends of the V-shaped iron 3 are fixed to the convex groove 202 of the workbench 2 by a bolt structure 303; the screw slide 1 includes a left A rectangular iron block 104 is arranged in the right direction, and a left square bracket and a right square bracket are arranged on the left and right sides of the upper end of the rectangular iron block 104 respectively. The height of the right square bracket is smaller than that of the left square bracket. The lower left end of the workbench 2 is connected to the upper end of the left square bracket through a hinge structure 103, and the lower right end of the workbench 2 is tightly attached to the upper end of the right square bracket; a screw 106 and a sliding rod 107 are arranged between the left square bracket and the right square bracket of the rectangular iron block 104, and the sliding rod 107 is located directly below the screw 106; the left end head of the screw 106 is sleeved in the inner hole of the bearing and fixed, and the outer ring of the bearing is fixedly connected to the inner side of the bearing hole provided on the right side of the left square bracket, and a through hole is arranged inside the right square bracket itself along the left and right directions, and a fixed sleeve is arranged in the through hole A bearing is installed, and the right end of the screw rod 106 passes through the middle hole of the bearing on the right square bracket and is fixedly connected to the left end of the main shaft of a rotating handle 105. The left and right ends of the slide rod 107 are respectively fixedly connected to the right side of the left square bracket and the left side of the right square bracket; a support block 101 is located between the left square bracket and the right square bracket, and the upper end of the support block 101 is against the lower end of the workbench 2, and the lower end of the support block 101 is fixedly connected to the upper end of the connecting block. A through threaded hole is provided in the middle of the connecting block, and the through threaded hole is sleeved on the screw rod 106 and the internal thread of the threaded hole is engaged with the external thread of the screw rod 106. A through hole is provided at the lower part of the connecting block, and the slide rod 107 passes through the through hole at the lower part of the connecting block. The side of the slide rod 107 is coated with lubricating liquid and the side of the slide rod 107 is The inner clearance of the through hole is less than 0.1 mm. The beneficial effect of the present invention lies in that the handle 105 of the screw slide 1 is rotated to drive the screw 106 to spin, thereby moving the connecting block and the supporting block 101 to the left or right, thereby changing the horizontal angle of the upper end of the workbench 2, and keeping the side of the tapered roller 4 placed on the V-shaped iron 3 of the workbench 2 horizontal, so as to facilitate the measurement of the contour measuring instrument. At the same time, the present invention realizes the relatively random placement of the roller 4 on the V-shaped iron 3 in the left and right directions, saving manual adjustment time and improving efficiency. Compared with traditional tooling, the measuring auxiliary tooling of the roller 4 contour measuring instrument of the present invention can conveniently measure rollers 4 of smaller sizes and expand the measurement range.

[0018] The V-shaped iron 3 includes a square iron block 301 arranged along the front-back direction, and an open-loop and penetrating isosceles triangle opening is opened along the left and right sides of the middle of the square iron block 301, the large end of the isosceles triangle opening faces upward and the large end of the isosceles triangle opening is coplanar with the upper end of the square iron block 301; pads are arranged on the two triangular isosceles sides of the isosceles triangle opening itself, and the pads are fixed to the two triangular isosceles sides of the isosceles triangle opening itself through a bolt structure 303; the lower end of the square iron block 301 is fixedly connected to the middle of the upper end of a rectangular iron 302 arranged flat along the front-back direction, and the rectangular iron 302 is fixed to the convex groove 202 on the workbench 2 through a bolt structure 303. This paragraph aims to define the specific shape of the V-shaped iron 3 itself, and the V-shaped iron 3 can be formed by adding pads on its own triangular isosceles sides. Since the upper end face of the pad can be parallel or non-parallel to the triangular isosceles sides, the angle between the two triangular isosceles sides of the V-shaped iron 3 itself can be changed by adding pads to adapt to the placement of rollers 4 with different outer diameters.

[0019] Among them, the convex groove 202 is a groove with a convex cross-sectional shape, and the upper opening width of the convex groove 202 itself is smaller than the bottom width of the convex groove 202 itself; the rectangular iron 302 is fixed to the convex groove 202 on the workbench 2 by a bolt structure 303, and its specific bolt structure 303 is that the rectangular iron 302 has symmetrically through threaded holes on the left and right sides of the upper end, the bolt rod of the bolt itself passes through the threaded holes from bottom to top and is fixed with a nut, the nut of the bolt itself is located below the bolt rod and the nut is located below the inside of the convex groove 202, the outer diameter of the nut is larger than the upper opening width of the convex groove 202, and the upper end of the nut is against the inner wall of the convex groove 202; this section aims to limit the bolt structure 303 between the lower end of the V-shaped iron 3 and the convex groove 202.

[0020] Among them, scales 201 are symmetrically provided on the front and back sides of the upper end of the workbench 2, and the left and right ends of the scales 201 are coplanar with the left and right ends of the workbench 2. The two scales 201 are set along the left and right directions and are respectively located on the front and back sides of the V-shaped iron 3, and the scale numbers on the scale plates of the two scales 201 themselves are in opposite directions from small to large; the lower end face of the rectangular body of the workbench 2 itself is an arc surface that is higher on the left and lower on the right and tilted downward along the left and right directions; the upper end face of the supporting block 101 is actually a semicircular arc surface; the purpose of setting the scale 201 described in this paragraph is to facilitate the installation of the V-shaped iron 3 on the upper end face of the workbench 2.

[0021] Among them, the lower end of the connecting block is against the upper end of the screw slide 1, and the middle part of the upper end of the rectangular iron block 104 of the screw slide 1 itself is provided with a convex groove running through the two ends of the rectangular iron block 104 along the left and right directions. The cross-sectional shape of the convex groove itself is convex, the small end of the convex shape faces upward, and the convex upper end opening is coplanar with the upper end of the rectangular iron block 104; a convex block with a length of 1-2 cm and a convex cross-sectional shape is embedded in the convex groove 202 along the length direction, and the front side, rear side and lower end of the convex block itself are all aligned with the convex groove 2 02 inner wall is close to the inner wall, the small end of the convex block extends from the upper opening of the convex groove 202 and is fixedly connected to the middle of the lower end of a positioning block 102. The positioning block 102 is a rectangular iron 302 plate arranged along the front and rear direction. The right side of the rectangular iron 302 plate is against the left side below the connecting block. The front and rear ends of the rectangular iron 302 plate are coplanar with the front and rear ends of the rectangular iron block 104 of the screw slide 1 itself. The width of the rectangular iron 302 plate is the same as the length of the convex block below. Threaded holes are provided on the front and rear sides of the upper end of the rectangular iron 302 plate. The screw rod 106 of the screw itself is pressed downward against the upper end face of the screw slide 1 through the threaded hole on the rectangular iron 302 plate; the positioning block 102 itself is provided with a through threaded hole along the middle of the left and right sides, and a threaded hole is provided on the left side of the lower end of the edge block. A bolt screw rod 106 passes through the threaded hole through the positioning block 102 and is inserted into the threaded hole on the left side of the connecting block for fixation; this paragraph mainly describes the position limiting structure for the connecting block provided on the upper end face of the rectangular iron 302 block 301 of the screw slide 1 itself. In actual work, a model of roller 4 is placed on the V-shaped iron 3 of the workbench 2, and the screw slide 1 and the workbench 2 are adjusted in linkage by the roller 4 contour measuring instrument measuring auxiliary tooling itself. After the side of the roller 4 itself is adjusted to the horizontal position, the connecting block and the supporting block 101 in the screw slide 1 of the roller 4 contour measuring instrument measuring auxiliary tooling must be fixed and fixed in position to prevent it from loosening due to the position, resulting in data errors when the model of roller 4 is measured in batches by the contour meter later.

[0022] The working principle of the utility model is: the screw slide 1 itself rotates the handle 105 to drive the screw 106 to spin, thereby pulling the connecting block and the supporting block 101 connected to the upper end of the connecting block to move left or right. Since the upper end of the supporting block 101 is against the arc surface inclined from left to right at the lower end of the workbench 2, the workbench 2 can be made to rotate around the lower right end of the workbench 2 and the right square bracket hinge structure 103, so that the left side of the upper end of the workbench 2 can be raised or lowered, thereby adjusting the horizontal angle of the upper end face of the workbench 2 in the left and right directions; a roller 4 with a taper in the left and right directions is placed above the V-shaped iron 3 of the workbench 2. After the horizontal angle of the upper end face of the workbench 2 in the left and right directions is adjusted, the side of the roller 4 with a taper in the left and right directions placed on the V-shaped iron 3 is kept horizontal, and the probe of the contour measuring instrument itself extending downward and against the side of the roller 4 is kept at a vertical angle to the side of the roller 4.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A roller profile measuring instrument measurement auxiliary tool, characterized in that: The invention comprises a V-shaped iron, a workbench and a screw slide; wherein the workbench is a rectangular platform arranged along the left and right directions, the end face of the lower end of the rectangular body is inclined along the left and right directions, and the length of the end face of the right end of the rectangular platform along the up and down directions is greater than the length of the end face of the right end of the rectangular platform along the up and down directions; a convex groove is arranged on the upper end face of the upper end of the workbench in the left and right directions, and the convex groove runs through the left and right ends of the workbench; two V-shaped irons are arranged side by side on the left and right sides and each V-shaped iron is arranged along the front and back directions, and the front and rear lower ends of the V-shaped irons are fixed to the convex grooves of the workbench by bolt structures; the screw slide comprises a rectangular iron block arranged along the left and right directions, and a left square bracket and a right square bracket are respectively arranged on the left and right sides of the upper end of the rectangular iron block, and the height of the right square bracket is smaller than that of the left square bracket, and the lower left end of the workbench is connected to the upper end of the left square bracket through a hinged structure, and the lower right end of the workbench is tightly attached to the upper end of the right square bracket; a screw and The sliding rod is located directly below the screw rod; the left end of the screw rod is sleeved in the inner hole of the bearing and fixed, the outer ring of the bearing is fixedly connected to the inner side of the bearing hole provided on the right side of the left square bracket, and the right square bracket itself is provided with a through hole in the left and right directions, and a bearing is fixedly sleeved in the through hole, and the right end of the screw rod passes through the middle hole of the bearing on the right square bracket and is fixedly connected to the left end of a rotating handle spindle, and the left and right ends of the sliding rod are respectively fixedly connected to the right side of the left square bracket and the left side of the right square bracket; a supporting block is located between the left square bracket and the right square bracket, the upper end of the supporting block is against the lower end of the workbench, and the lower end of the supporting block is fixedly connected to the upper end of the connecting block, a through threaded hole is provided in the middle of the connecting block, the through threaded hole is sleeved on the screw rod and the inner thread of the threaded hole is engaged with the outer thread of the screw, and a through hole is provided at the lower part of the connecting block, the sliding rod passes through the through hole at the lower part of the connecting block, the side of the sliding rod is coated with lubricating fluid and the gap between the side of the sliding rod and the inner side of the through hole is less than 0.1 mm.

2. According to claim 1, a roller profile measuring instrument measurement auxiliary tooling, characterized in that: The V-shaped iron includes a square iron block arranged along the front-to-back direction, with an open-loop and penetrating isosceles triangle opening along the left and right sides of the middle of the square iron block, the large end of the isosceles triangle opening faces upward and the large end of the isosceles triangle opening is coplanar with the upper end of the square iron block; pads are provided on the two triangular isosceles sides of the isosceles triangle opening itself, and the pads are fixed to the two triangular isosceles sides of the isosceles triangle opening itself through a bolt structure; the lower end of the square iron block is fixedly connected to the middle of the upper end of a rectangular iron arranged flat along the front-to-back direction, and the rectangular iron is fixed to the convex groove on the workbench through a bolt structure.

3. According to claim 2, a roller profile measuring instrument measurement auxiliary tooling, characterized in that: The convex groove is a groove with a convex-shaped cross-section, and the width of the upper opening of the convex groove itself is smaller than the width of the bottom of the convex groove itself; the rectangular iron is fixed to the convex groove on the workbench through a bolt structure, and its specific bolt structure is that there are symmetrical through threaded holes on the left and right sides of the upper end of the rectangular iron, the bolt rod of the bolt itself passes through the threaded holes from bottom to top and is fixed with a nut, the nut of the bolt itself is located below the bolt rod and the nut is located below the inside of the convex groove, the outer diameter of the nut is larger than the width of the upper opening of the convex groove, and the upper end of the nut is against the inner wall of the convex groove.

4. The measuring auxiliary tooling of the roller profile measuring instrument according to claim 1, characterized in that: Scales are symmetrically arranged on the front and back sides of the upper end of the workbench, and the left and right ends of the scales are coplanar with the left and right ends of the workbench. The two scales are arranged along the left and right directions and are respectively located on the front and back sides of the V-shaped iron, and the scale numbers on the scale plates of the two scales themselves are in opposite directions from small to large; the lower end face of the rectangular parallelepiped of the workbench itself is an arc surface that is higher on the left and lower on the right and tilted downward along the left and right directions; the upper end face of the supporting block is actually a semicircular arc surface.

5. The measuring auxiliary tooling of the roller profile measuring instrument according to claim 1, characterized in that: The lower end of the connecting block is against the upper end of the screw slide, and a convex groove running through the two ends of the rectangular iron block is arranged in the middle of the upper end of the rectangular iron block of the screw slide along the left and right directions. The cross-sectional shape of the convex groove itself is convex, the small end of the convex is facing upward, and the convex upper end opening is coplanar with the upper end of the rectangular iron block; a convex block with a length of 1-2 cm and a convex cross-sectional shape is embedded in the convex groove along the length direction, and the front, rear and lower ends of the convex block itself are tightly attached to the inner wall of the convex groove, the small end of the convex block extends out from the upper end opening of the convex groove and is fixedly connected to the middle of the lower end of a positioning block, the positioning block is a rectangular iron plate arranged along the front and rear directions, the right side of the rectangular iron plate is against the left side below the connecting block, the front and rear ends of the rectangular iron plate are coplanar with the front and rear ends of the rectangular iron block of the screw slide itself, the width of the rectangular iron plate is the same as the length of the convex block below, and threaded holes are arranged on the front and rear sides of the upper end of the rectangular iron plate, and the screw of the screw itself is downward against the upper end surface of the screw slide through the threaded holes on the rectangular iron plate.

6. The measuring auxiliary tool of the roller profile measuring instrument according to claim 5, characterized in that: The positioning block itself is provided with through threaded holes along the middle of the left and right sides, and a threaded hole is provided on the left side of the lower end of the side connection block. A bolt screw passes through the threaded hole of the positioning block and is inserted into the threaded hole on the left side of the connection block for fixing.

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