TWI761092B - A fixing wrench and a fixing method for a workpiece - Google Patents

Abstract

The present invention provides a fixing method for fixing a wrench and a workpiece. The fixing wrench includes a clamping connection part and a hand-held fixing part used to assist in fixing the clamping connection part. The clamping connection part is provided with a clamping slot, which has a first through hole passing through the clamping connection part, which can be fixed with the main shaft. hole alignment. When the stud of the dismantling bolt passes through the first through hole and extends into the fixing hole, the card slot can move along the dismantling bolt to the position where the spindle is locked, or the dismantling bolt can move along the card slot to the position where the main shaft is locked. Location. The slot of the fixed wrench can nest the removal bolt on the spindle to limit the movement of the removal bolt and lock the spindle, which helps to improve the efficiency of removing and installing the grinding wheel on the spindle. The workpiece fixing method utilizes the above-mentioned fixing wrench to nest the removal bolts to limit the movement of the removal bolts and lock the spindle.

Description

A fixing wrench and a fixing method for a workpiece

The invention relates to the technical field of fixing tools, in particular to a fixing wrench and a fixing method for a workpiece.

FIG. 1 is a view showing the installation state of a grinding wheel of an existing ingot rolling mill. As shown in FIG. 1 , the grinding wheel 10 is coaxial with the main shaft 20 , the grinding wheel 10 is fixed on the main shaft 20 by six hexagon screws 30 (usually fixed on the rotating chassis of the main shaft), and the grinding wheel 10 and the main shaft 20 can rotate synchronously. When replacing the grinding wheel 10 of the ingot barrel mill, it is necessary to fix the grinding wheel 10 and remove the above-mentioned hexagon screws 30 . However, since the main shaft 20 has no brake, the grinding wheel 10 and the main shaft 20 are easy to rotate synchronously, so that the grinding wheel 10 cannot be fixed, which makes the disassembly and installation of the grinding wheel 10 inconvenient. At present, since there is no suitable tool to easily fix the grinding wheel when disassembling and installing the grinding wheel, it is necessary to fix the grinding wheel by hand, and then remove or install the hexagonal screws, resulting in low efficiency of disassembly and installation of the grinding wheel, and easy to scratch hands And a safety accident occurs. In addition, as a precision component, if the grinding wheel is not reliably fixed during the installation process, it is easy to cause damage to the grinding wheel.

The invention provides a fixing wrench and a fixing method for a workpiece, which can fix the main shaft when disassembling or installing the grinding wheel on the main shaft of the crystal rod rolling mill, which helps to improve the disassembly and installation efficiency of the grinding wheel.

One aspect of the present invention provides a fixing wrench, which is used to fix the main shaft when disassembling and assembling the grinding wheel on the main shaft of the ingot rolling mill. The hand-held fixing part is used to assist in fixing the clamping connection part, and a clamping groove is provided on the clamping connection part, and the clamping groove has a first part extending through the clamping connection part along the thickness direction of the fixing wrench. a through hole, the first through hole can be aligned with the fixing hole on the main shaft; when the stud of a dismantling bolt passes through the first through hole and extends into the fixing hole, the The card slot can move along the dismounting bolt to a position where the main shaft is locked, or the dismounting bolt can move along the card slot to a position where the main shaft is locked.

Optionally, the main shaft is provided with a plurality of the fixing holes, the number of the clamping grooves set on the clamping connection part is the same as the number of the fixing holes, and the distance between the adjacent clamping grooves is the same as that of the adjacent clamping grooves. The spacing between adjacent fixing holes is the same.

Optionally, the stud is gradually thickened from the end inserted into the fixing hole, and the hand-held fixing part can drive the clamping connecting part to move along the stud to the first port. The position of the hole in close contact or interference fit with the stud to lock the spindle.

Optionally, the dismounting bolt further has a bolt head located at one end of the stud that is not inserted into the fixing hole, the width of the bolt head is greater than the diameter of the stud, and the bolt head is connected to the clip. The slots cooperate to lock the spindle.

Optionally, the card slot further includes a second through hole communicating with the first through hole; the second through hole is arranged on the periphery of the first through hole; the diameter of the first through hole The size is larger than the aperture size of the second through hole.

Optionally, the hand-held fixing part can drive the clamping connecting part to move until the bolt head is embedded in the first through hole and is in close contact or interference fit with the first through hole, so as to connect the bolt head to the first through hole. The main shaft is locked; or, the hand-held fixing part can first drive the clamping connection part to move until the bolt head is embedded in the first through hole, and then continue to drive the clamping connection part to move, so that the The bolt head is slid into the second through hole from the first through hole until it is in close contact with or interference fit with the second through hole, so as to lock the main shaft; or, the hand-held fixing part It can drive the clamping connecting part to move, so that the stud slides from the first through hole into the second through hole until it is in close contact with the second through hole or interferes with the second through hole. The bolt head is stopped on the side of the snap connection facing away from the spindle to lock the spindle.

Optionally, a first inner groove is recessed on the hole wall of the second through hole, the first inner groove surrounds the second through hole, and the first inner groove is also connected to the first through hole. The opening width of the first inner groove in the thickness direction of the fixing wrench is greater than or equal to the thickness of the bolt head, and the hand-held fixing part can drive the clamping connection part to move, so that the bolt head can be moved. Slide into the first inner groove from the first through hole, and move the stud along the second through hole until the bolt head is in close contact with the first inner groove and /or the stud is in close contact with the second through hole, so as to lock the main shaft.

Optionally, the card slot includes a third through hole, the third through hole communicates with the first through hole, and the third through hole and the second through hole are distributed in the first through hole. At different positions on the outer periphery of the hole, the third through hole and the second through hole have different aperture sizes.

Optionally, the card slot further includes a second through hole communicating with the first through hole, the first through hole is arranged in the center of the second through hole, and the diameter of the first through hole is size smaller than the The aperture size of the two through holes; the hand-held fixing part can drive the clamping connecting part to move along the stud until the bolt head is embedded in the second through hole and is in close contact with the second through hole or interference fit to lock the spindle.

Another aspect of the present invention provides a method for fixing a workpiece, the fixing method comprising: inserting a dismounting bolt into a fixing hole on a main shaft of an ingot tumbling mill, and nesting the dismounting bolt with the above-mentioned fixing wrench to restrict Movement of the removal bolt locks the spindle.

The fixing wrench of the present invention is used to fix the main shaft when disassembling and assembling the grinding wheel on the main shaft of the ingot rolling mill. The hand-held fixing portion is used to assist in fixing the clamping connection portion, and a clamping slot is provided on the clamping connection portion. a through hole, the first through hole can be aligned with the fixing hole on the main shaft; when the stud of a dismantling bolt passes through the first through hole and extends into the fixing hole, the card The slot can move along the dismounting bolt to a position where the spindle is locked, or the dismounting bolt can move along the locking slot to a position where the spindle is locked, so that the spindle can be easily fixed, so that the grinding wheel can be easily fixed. It is more convenient to install and disassemble the grinding wheel, which helps to improve the efficiency of the grinding wheel installation and disassembly, and can avoid the problem that the grinding wheel cannot be effectively fixed and damaged during the installation and disassembly process, and can also avoid the direct fixing of the shaft by hand Problems with the spindle or grinding wheel help to avoid safety accidents.

In the fixing method of the workpiece of the present invention, after installing the dismounting bolts in the fixing holes on the main shaft of the ingot rolling mill, the above-mentioned fixing wrench is used to nest the dismounting bolts, so as to restrict the movement of the dismounting bolts to lock the main shaft, Therefore, it is convenient to install and remove the grinding wheel on the main shaft, which helps to improve the installation and removal efficiency of the grinding wheel.

10: Grinding Wheel

20: Spindle

30: Hexagon screws

40: Fixing hole

50: Fixed wrench

501: Snap connection part

502: Hand holding part

503: Card slot

5031: first through hole

5032: second through hole

5033: Third Via

504: The first inner groove

60: Remove the bolts

601: Bolt Head

602: Stud

a1: Opening width

a2: depth

d1: width

d2: diameter

H: Thickness

FIG. 1 is a view showing the installation state of a grinding wheel of an existing ingot rolling mill.

FIG. 2 is a schematic diagram of a conventional dismantling bolt.

3 is a perspective view of a fixed wrench according to Embodiment 1 of the present invention.

FIG. 4 is a cross-sectional view of a fastening connection part of a fixed wrench according to Embodiment 1 of the present invention.

FIG. 5 is a schematic plan view of a clamping connecting portion of another fixing wrench according to Embodiment 1 of the present invention.

FIG. 6 is a schematic plan view of the clamping connecting portion of the fixing wrench according to the second embodiment of the present invention.

FIG. 7 is a schematic plan view of the clamping connection part of the fixing wrench according to the third embodiment of the present invention.

The method for fixing the wrench and the workpiece proposed by the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that, the accompanying drawings are all in a very simplified form and in inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention.

Example 1

In order to conveniently fix the main shaft when disassembling and assembling the grinding wheel on the main shaft of the ingot rolling mill, this embodiment provides a fixing wrench, the fixing wrench includes a clamping connection part and a hand-held fixing part located at both ends of the clamping connection part, The hand-held fixing part is used to assist in fixing the clamping connection part, and a clamping groove is provided on the clamping connection part, and the clamping groove has a first part extending through the clamping connection part along the thickness direction of the fixing wrench. a through hole, the first through hole can be aligned with the fixing hole on the main shaft; when the stud of a dismantling bolt passes through the first through hole and extends into the fixing hole, the The card slot can move along the dismounting bolt to a position where the main shaft is locked, or the dismounting bolt can move along the card slot to a position where the main shaft is locked.

3 is a perspective view of a fixed wrench according to Embodiment 1 of the present invention. As shown in FIG. 1 and FIG. 3 , the fixing wrench 50 includes a clamping connection part 501 and a hand-held fixing part 502 located at both ends of the clamping connection part 501 , and the handheld fixing parts 502 are used to assist in fixing the clamping In the connecting part 501 , the fixing wrench 50 is elongated along the X direction (that is, the length direction of the fixing wrench is the X direction). The thickness direction (Y-direction) of the bolt penetrates through the first through hole 5031 of the clamping connection part 501. When the stud of a dismantling bolt passes through the first through hole and protrudes into the fixing hole, the The card slot can move along the dismounting bolt to a position where the main shaft is locked.

In order to facilitate the fixing wrench to rest on the end surface of the workpiece smoothly and enhance the fixing effect of the fixing wrench, as shown in FIG. The two plate surfaces are perpendicular to each other, the card slot 503 runs vertically through the two plate surfaces, the thickness direction (Y direction) of the fixing wrench is perpendicular to the plate surface, the length direction (X direction) of the fixing wrench and The width direction (Z direction) is parallel to the plate surface.

In order to make the main shaft bear relatively uniform force when the main shaft is fixed by the fixing wrench, the main shaft 20 is provided with a plurality of the fixing holes 40 , and the number of the clamping grooves provided in the clamping connection part 501 can be the same as the number of the fixing holes 40 . The number of the holes 40 is the same, and the distance between the adjacent card slots 503 is the same as the distance between the adjacent fixing holes 40 .

As an example, as shown in FIG. 1 and FIG. 3 , two fixing holes 40 may be provided on the rotating chassis of the main shaft 20 of the ingot rolling mill, and the clamping connecting portion 501 of the fixing wrench may also be provided with two fixing holes 40 . For the two card slots 503 , the distance between the first through holes 5031 of the two card slots 503 may be equal to the distance between the two fixing holes 40 , or the distance between the two card slots 503 It can be equal to the distance between the dismounting bolts installed on the two fixing holes 40 respectively.

FIG. 2 is a schematic diagram of a conventional dismantling bolt. The dismounting bolt 60 may include a bolt head 601 and a stud 602, the bolt head 601 is located at the end of the stud 602 not inserted into the fixing hole 40, and the width (d1) of the bolt head 601 may be larger than all According to the diameter (d2) of the stud 602, the bolt head 601 can cooperate with the locking groove 503 to lock the main shaft 20.

The card slot 503 may further include a second through hole 5032 communicated with the first through hole 5031; the second through hole 5032 is disposed on the periphery of the first through hole 5031; the first through hole The aperture size of 5031 is larger than the aperture size of the second through hole 5032 .

Case 1

The hand-held fixing portion 502 can drive the clamping connecting portion 501 to move until the bolt head 601 is embedded in the first through hole 5031 and is in close contact or interference fit with the first through hole 5031 ) to lock the spindle.

Case 2

The hand-held fixing portion 502 can first drive the clamping connection portion 501 to move until the bolt head 601 is embedded in the first through hole 5031, and then continue to drive the clamping connection portion 501 to move, so that the The bolt head 601 slides into the second through hole 5032 from the first through hole 5031 until it is in close contact or interference fit with the second through hole 5032 to lock the spindle.

FIG. 4 is a cross-sectional view of a fastening connection part of a fixed wrench according to Embodiment 1 of the present invention. As shown in FIG. 3 and FIG. 4 , the first through holes 5031 and the second through holes 5032 can be arranged and communicated along the length direction (X direction) of the fixing wrench 50 . The second through holes 5032 can penetrate through the clamping connecting portion 501 along the thickness direction (Y direction) of the fixing wrench, and the second through holes 5032 can extend in the length direction (X direction) of the fixing wrench, so The width direction (Z direction) of the fixed wrench is perpendicular to its length direction (X direction) and thickness direction (Y direction). In the width direction of the hand, the width of the first through hole 5031 is greater than the width of the second through hole 5032 . But not limited to this, the first through holes 5031 and the second through holes 5032 may also be arranged and communicated along the width direction (Z direction) of the fixing wrench 50 and other directions.

In order to facilitate the bolt head 601 to pass through the first through hole 5031 (that is, the first through hole can nest the bolt head along the axial direction of the dismantling bolt), the shape of the opening of the first through hole and size can be designed according to the width of the bolt head and its cross-sectional shape. Specifically, in the length direction of the fixing wrench, the length of the first through hole 5031 may be greater than or equal to the width of the bolt head 601, and in the width direction of the fixing wrench, the first through hole 5031 can be greater than or equal to the width of the bolt head 601 . On a plane perpendicular to the thickness direction of the fixing wrench, the cross-sectional shape of the hole wall of the first through hole 5031 can be circular arc, hexagon or square, etc., as long as the bolt head 601 can pass through the first through hole hole.

In order that the bolt head 601 can be in close contact or interference fit with the second through hole 5032 to lock the spindle, in the width direction (Z direction) of the fixing wrench, the width of the second through hole 5032 can be Equal to or slightly larger than the width of the bolt head 601 .

In order to allow the removal bolt to slide completely into the second through hole 5032, increase the contact area between the removal bolt and the second through hole, and enhance the fixing effect of the fixing wrench, the length of the fixing wrench increases. In the direction (X direction), the length of the second through hole 5032 may be greater than or equal to the width of the bolt head 601 .

As shown in FIG. 3 and FIG. 4 , the card slot 503 may further include a third through hole 5033, the third through hole 5033 communicates with the first through hole 5031, and the third through hole 5033 is connected to the third through hole 5033. The second through holes 5032 are distributed at different positions on the outer circumference of the first through holes 5031, and the third through holes 5033 can also nest the dismounting bolts to restrict the movement of the dismounting bolts. For example, the third through hole 5033 may be along the The length direction of the fixing wrench is elongated, the third through hole 5033 communicates with the first through hole 5031, and the second through hole 5032, the first through hole 5031 and the third through hole 5033 are along the fixing The length (X direction) direction of the wrench is arranged; in the width direction (Z direction) of the fixed wrench, the width of the third through hole 5033 and the width of the second through hole 5032 can be the same, which is convenient for lateral movement of all The fixing wrench, that is to say, the opening shape of the clamping slot 503 may be a waist shape with a width in the middle greater than the width on both sides. But not limited to this, in an embodiment, in the width direction (Z direction) of the fixing wrench, the width of the third through hole 5033 and the width of the second through hole 5032 may be different, so that the fixing The slots in the wrench can restrict bolt heads of different specifications, and the fixing wrench can be used to restrict the movement of bolts of different specifications, which helps to expand the use range of the fixing wrench.

FIG. 5 is a schematic plan view of a clamping connecting portion of another fixing wrench according to Embodiment 1 of the present invention. As shown in FIG. 5 , in one embodiment, the third through hole 5033 communicates with the first through hole 5031 , and the third through hole 5033 may be in the width direction (Z direction) of the fixing wrench The extending direction of the third through hole 5033 is perpendicular to the direction of the second through hole 5032 . In other embodiments, the third through hole may be elongated in other directions perpendicular to the thickness direction of the fixing wrench; the card slot 503 may further include a fourth through hole, and the fourth through hole is connected to the first through hole. A through hole communicates with each other, and the fourth through hole can restrict the movement of dismantling bolts of other specifications (different from the specifications of dismantling bolts that can be restricted by the second through hole and the third through hole).

Case three

The hand-held fixing part can drive the clamping connection part to move, so that the stud 602 slides into the second through hole 5032 from the first through hole 5031 until it is connected with the second through hole 5032 In close contact or interference fit, the bolt head 601 is stopped on the side of the clamping connection portion 501 facing away from the main shaft to lock the main shaft.

Specifically, referring to FIG. 3 and FIG. 4 , in the width direction (Z direction) of the fixing wrench, the width of the second through hole 5032 may be equal to or slightly larger than the diameter of the stud, the first through hole 5032 The width of the hole 5031 may be greater than the width of the bolt head 601 . The aperture size of the first through hole 5031 is larger than the cross-sectional size of the bolt head.

When using the fixing wrench to nest the dismantling bolts, first align the first through holes 5031 with the bolt heads 601 of the bolts, and then push the fixing wrench so that the bolt heads 601 pass through the first through holes 5031. through hole 5031, and then move (eg, move laterally) the fixing wrench, so that the stud 602 of the dismantling bolt slides into the second through hole 5032 and is restricted by the second through hole 5032, so that the The fixing wrench 50 can limit the movement of the dismounting bolt, thereby fixing the main shaft.

In order to further limit the movement of the bolt head 601, a first inner groove 504 may be recessed on the hole wall of the second through hole 5032, and the first inner groove 504 surrounds the second through hole 5032. The first inner groove 504 is also communicated with the first through hole 5031. For example, the first inner groove 504 communicates with the first through hole 5031 and the second through hole 5032 at the communication position. The hole 5031 can be communicated, and the hand-held fixing part 502 can drive the clamping connecting part 501 to move, so that the bolt head 601 slides into the first inner groove 504 from the first through hole 5031, and Move the stud 601 along the second through hole 5032 until the bolt head 601 is in close contact with the first inner groove 504 and/or the stud 602 and the second through hole 5032 abutting tightly to lock the spindles.

Specifically, the opening width of the first inner groove 504 in the thickness direction of the fixing wrench ( a1 in FIG. 4 ) may be greater than or equal to the thickness of the bolt head 601 (H in FIG. 2 ). In the width direction (Z direction), the sum of twice the depth of the first inner groove 504 (a2 in FIG. 4 ) and the width of the second through hole 5032 may be equal to or slightly larger than the width of the bolt head 601 The width, or the first inner groove 504 can be in close contact or interference fit with the bolt head. The second through hole 5032 is away from The end hole wall of the first through hole 5031 may be arc-shaped, so as to increase the contact area between the surface of the stud 602 and the hole wall of the second through hole 5032 and improve the fixing effect of the fixing wrench.

Referring to FIGS. 1 to 4 , when using the fixing wrench 50 with the first inner groove 504 recessed on the hole wall of the second through hole 5032 to nest the removal bolt 60 , the first through hole 5031 of the fixing wrench slot 503 is Align the opening with the bolt head 601, then push the fixing wrench 50 so that the bolt head 601 extends into the slot 503, then align the side of the bolt head 601 with the first inner groove, and then translate the Fix the wrench 50 so that the bolt 60 enters the second through hole 5032. At this time, the bolt head 601 can abut on the inner surface of the first inner groove 504, and the stud 602 can abut on the first inner groove 504. On the hole wall of the second through hole, the slot 503 of the fixing wrench can simultaneously limit the movement of the bolt head 601 and the stud 602 of the bolt. Compared with the hole wall of the second through hole, there is no first inner In the case of the groove, the freedom of movement of the bolt is lower, which helps to improve the fixing effect of the fixing wrench on the bolt, thereby improving the fixing effect of the fixing wrench on the workpiece.

The card slot 503 may include a third through hole 5033, the third through hole 5033 communicates with the first through hole 5031 and the position of the second through hole 5032 is opposite, in the width direction of the fixing wrench ( In the Z direction), the width of the third through hole 5033 and the width of the second through hole 5032 can be different, so that the third through hole can limit the dismantling bolts with different stud diameters and expand the fixing wrench. Scope of application. A second inner groove may also be provided on the hole wall of the third through hole, the second inner groove communicates with the first through hole, and the second inner groove may be used to limit the movement of the bolt head. In an embodiment, in the length direction of the fixing wrench, the second inner groove and the first inner groove can be extended to the hole wall of the first through hole, and the second inner groove and The inner surfaces of the first inner grooves meet.

Continuing to refer to FIG. 3 , in this embodiment, the clamping connecting portion 501 and the hand-held fixing portion 502 at both ends of the clamping connecting portion can be integrally formed, so as to reduce the manufacturing difficulty of the fixing wrench and improve the The stiffness of the fixed wrench. Specifically, the handheld connection part 501 can also be Plate-shaped, the board surface of the hand-held fixing part 502 can be parallel to the board surface of the clamping connecting part 501, and the thicknesses of the hand-held fixing part 502 and the clamping connecting part 501 can be equal, that is, the fixing The wrench can be in the form of a bar.

In order to improve the comfort of grasping the hand-held fixing portion and facilitate fixing the fixing wrench, the side wall of the hand-held fixing portion 502 can be arc-shaped, and the connection between the side wall of the hand-held fixing portion 502 and its board surface can also be made Arc chamfer. In order to firmly grasp the hand-held fixing portion 502 , a non-slip layer may be provided on the side wall surface of the hand-held fixing portion 502 . The anti-skid layer may be a silicone layer.

In order to use safety and prevent the fixed wrench from scratching the workpiece, the end of the hand-held fixing portion 502 away from the clamping connection portion 501 can also be designed in a circular arc shape. In order to facilitate hanging of the fixing wrench, a through hole penetrating the handheld fixing portion 502 may be provided in the handheld fixing portion 502 .

Embodiment 2

In this embodiment, the card slot further includes a second through hole that communicates with the first through hole, the first through hole is arranged in the center of the second through hole, and the first through hole is located at the center of the second through hole. The aperture size is smaller than the aperture size of the second through hole; the hand-held fixing part can drive the clamping connecting part to move along the stud until the bolt head is embedded in the second through hole and communicates with the second through hole. The second through holes are in close contact or interference fit to lock the spindle.

FIG. 6 is a schematic plan view of the clamping connecting portion of the fixing wrench according to the second embodiment of the present invention. As shown in FIG. 6 , the card slot includes a first through hole 5031 and a second through hole 5032 that communicate with each other, the first through hole 5031 and the second through hole 5032 are coaxial, and the first through hole 5031 is disposed in the In the center of the second through hole 5032, one end face of the second through hole 5032 is exposed on the surface of the clamping connection portion and the other end face is located in the clamping connection portion, the first through hole 5031 One end face of the first through hole is exposed in the second through hole, and the other end face of the first through hole is exposed on the surface of the clamping connection portion away from the first through hole. The aperture size of the through hole 5031 is smaller than the aperture size of the second through hole 5032, and the bolt head can be embedded in the second through hole 5032 and closely contact or interfere with the second through hole 5032, so as to Lock the spindle.

Embodiment 3

FIG. 7 is a schematic plan view of the clamping connection part of the fixing wrench according to the third embodiment of the present invention. As shown in FIG. 7 , in this embodiment, on a plane perpendicular to the thickness direction of the fixing wrench, the card slot only has a first through hole 5031 , and the cross-sectional shape of the first through hole 5031 may be circular. But not limited to this, the cross-sectional shape of the card slot can also be a hexagon or a rectangle, etc., as long as the first through hole 5031 can nest the bolt head and/or the bolt head of the disassembly bolt along the axial direction of the disassembly bolt. or stud and restrict the movement of the bolt head and/or stud.

Specifically, referring to FIG. 2 and FIG. 7 , in the length direction (X direction) of the fixing wrench, the length of the first through hole 5031 may be greater than the diameter of the stud 602 and less than the width of the bolt head , and/or in the width direction (Z direction) of the fixing wrench, the width of the slot 503 is larger than the diameter of the stud and smaller than the width of the bolt head, or the slot 503 can be combined with The close abutment or interference fit of the studs 602 .

When using the fixing wrench to assist in fixing the workpiece, firstly insert the stud 602 of the bolt into the slot 503, then align the bolt with its installation position on the main shaft (ie, the fixing hole), then push the fixing wrench and By screwing or inserting the bolt into the fixing hole, and then fixing the hand-held fixing part of the fixing wrench, the movement of the dismounting bolt on the plane perpendicular to the axial direction of the stud can be restricted, thereby fixing the main shaft.

Another situation of this embodiment is that the first through hole 5031 can be in close contact with the bolt head 601 or interference fit. In other words, in the length and width directions of the fixed wrench, all The length and width of the first through hole 5031 are equal to or slightly larger than the width of the bolt head 601, so that the first through hole 5031 can limit the movement of the bolt head (for example, on a plane perpendicular to the axial direction of the stud) exercise).

When using the fixing wrench to assist in fixing the workpiece, first align the first through hole 5031 with the bolt head of the dismantling bolt on the main shaft, and then push the fixing wrench to insert the bolt head into the slot , since the slot and the bolt head can be closely connected, and then the hand-held fixing part of the fixing wrench is fixed, the movement of the dismantling bolt on the plane perpendicular to the axial direction of the stud can be restricted, so that it can be easily fixed hold the spindle.

There is also a situation in this embodiment that the stud is gradually thickened from the end inserted into the fixing hole, and the hand-held fixing portion can drive the clamping connecting portion to move along the stud to the desired position. The first through hole 5031 is in close contact or interference fit with the stud, so as to lock the spindle.

Embodiment 4

This embodiment provides a method for fixing a workpiece. The method includes inserting dismounting bolts into the fixing holes on the main shaft of the ingot tumbling mill, and then using the fixing wrench in the above embodiment to nest the dismounting bolts to limit all the dismounting bolts. the movement of the removal bolt and lock the spindle.

Since the clamping groove of the clamping connection part of the above-mentioned fixed wrench can limit the movement of the dismantling bolt on the workpiece on a plane perpendicular to the axial direction of the bolt, and the grinding wheel is coaxial with the main shaft, the fixing method of this embodiment The use of the fixing wrench can limit the movement of the removal bolt on the main shaft, thereby assisting in fixing the main shaft, facilitating the installation and removal of the grinding wheel, helping to improve the installation and removal efficiency of the grinding wheel, and improving the safety of installation and removal of the grinding wheel sex.

It should be noted that the embodiments in this specification are described in a progressive manner, and the structures and methods described later focus on the differences from the structures described before, and the same and similar parts between various parts. You can see each other. As for the fixing method of the workpiece disclosed in the embodiment, since it corresponds to the fixing wrench disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the structure part.

The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the patent application of the present invention. Anyone skilled in the art can use the methods and techniques disclosed above without departing from the spirit and scope of the present invention. The content makes possible changes and modifications to the technical solutions of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention belong to the present invention without departing from the content of the technical solutions of the present invention. The scope of protection of technical solutions.

50: Fixed wrench

501: Snap connection part

502: Hand holding part

503: Card slot

5031: first through hole

5032: second through hole

5033: Third Via

Claims (10)

A fixing wrench is used to fix the main shaft when disassembling and assembling the grinding wheel on the main shaft of an ingot rolling mill, comprising a clamping connection part and a hand-held fixing part located at both ends of the clamping connection part, the handheld fixing part is used for Auxiliary fixing of the clamping connection part, the clamping connection part is provided with a clamping slot, the clamping groove has a first through hole passing through the clamping connection part along the thickness direction of the fixing wrench, and the first through hole can be connected with A fixing hole on the main shaft is aligned, the card slot further includes a second through hole communicating with the first through hole, the second through hole is arranged on the periphery of the first through hole; When the stud passes through the first through hole and extends into the fixing hole, the slot can move along the dismounting bolt to the position where the spindle is locked, or the dismounting bolt can move along the slot to the position where the spindle is locked. The position where the spindle is locked. The fixing wrench according to claim 1, wherein the spindle is provided with a plurality of the fixing holes, the number of the clamping slots provided on the clamping connecting portion is the same as the number of the fixing holes, and the number of the clamping slots is the same as that between the adjacent clamping slots. The spacing is the same as the spacing between adjacent fixing holes. The fixing wrench according to claim 1, wherein the stud is gradually thickened from one end inserted into the fixing hole, and the hand-held fixing part can drive the clamping connecting part to move along the stud to the first A through hole is in close contact or interference fit with the stud to lock the spindle. The fixing wrench of claim 1, wherein the dismounting bolt further has a bolt head located at one end of the stud not inserted into the fixing hole, the width of the bolt head is greater than the diameter of the stud, and the bolt head is connected to the bolt head. The slots cooperate to lock the spindle. The fixing wrench according to claim 4, wherein the aperture size of the first through hole is larger than the aperture size of the second through hole. The fixing wrench of claim 5, wherein: The hand-held fixing part can drive the clamping connecting part to move until the bolt head is embedded in the first through hole and is in close contact or interference fit with the first through-hole, so as to lock the spindle; or, the hand-held fixing part It can first drive the clamping connection part to move until the bolt head is embedded in the first through hole, and then continue to drive the clamping connection part to move, so that the bolt head slides into the second through hole from the first through hole. until it is in close contact with or interference fit with the second through hole, so as to lock the main shaft; or, the hand-held fixing part can drive the clamping connecting part to move, so that the stud is slid into the first through hole into the second through hole until it is in close contact with or interference fit with the second through hole, the bolt head is stopped on the side of the clamping connecting portion facing away from the main shaft to lock the main shaft. The fixing wrench according to claim 5, wherein a first inner groove is recessed on the hole wall of the second through hole, the first inner groove surrounds the second through hole, and the first inner groove is also connected with the first inner groove. A through hole communicates with each other, the opening width of the first inner groove in the thickness direction of the fixing wrench is greater than or equal to the thickness of the bolt head, and the hand-held fixing part can drive the clamping connecting part to move, so that the bolt head can be moved from the first A through hole is slid into the first inner groove, and the stud is moved along the second through hole until the bolt head is in close contact with the first inner groove and/or the stud is in contact with the second through hole The through holes meet tightly to lock the spindle. The fixing wrench according to claim 6, wherein the card slot includes a third through hole, the third through hole communicates with the first through hole, and the third through hole and the second through hole are distributed in the first through hole. At different positions on the outer periphery of a through hole, the diameter of the third through hole and the second through hole are different in size. The fixing wrench according to claim 4, wherein the card slot further comprises a second through hole communicating with the first through hole, the first through hole is arranged in the center of the second through hole, and the first through hole The aperture size of the hole is smaller than the aperture size of the second through hole; and the hand-held fixing portion can drive the clamping connection portion along the The stud is moved until the bolt head is embedded in the second through hole and is in close contact or interference fit with the second through hole, so as to lock the spindle. A method for fixing a workpiece, comprising: inserting a dismounting bolt into a fixing hole on a main shaft of an ingot rolling mill; and using a fixing wrench according to any one of claims 1-9, wherein the fixing wrench is embedded The removal bolt is sleeved to limit the movement of the removal bolt and lock the spindle.

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