High-firmness precision supporting and positioning seat for centerless grinding machine

Abstract

The utility model discloses a centerless grinding machine precise supporting and positioning seat with strong firmness, which comprises a positioning seat body which is integrally cast and formed, and one side of the positioning seat body is provided with an angle connecting part which is used for being in close contact with two adjacent side surfaces on a guide rail of a grinding machine. Mounting holes for mounting bolts are formed in the two planes, in close contact with the guide rails, of the corner connecting parts, and the mounting holes are strip-shaped holes so that the left and right mounting positions of the positioning seat body can be adjusted conveniently; the positioning seat body is provided with a through hole which is through in the front-back direction and used for installing a lead screw, the top of the positioning seat body is provided with a receding hole through which the lead screw and a coupler can be connected together conveniently, and the receding hole is communicated with the through hole. The positioning seat is integrally cast and formed, the firmness and the rigidity are higher, so that the positioning seat is not easy to bend and deform due to external force, and the mounting holes in the two planes of the corner connecting part are strip-shaped holes, so that the mounting position of the positioning seat in the width direction of the guide rail can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of centerless grinders, in particular to a high-firmness precision supporting and positioning seat for centerless grinders. Background Art

[0002] A centerless grinder is a type of grinder that does not require the axis of the workpiece to grind the outer diameter of the workpiece. The centerless grinder is provided with a locating seat, which is used to install the lead screw. In the prior art, the locating seat on the centerless grinder is made of five steel plates spliced ​​together, and the five steel plates form a box-like structure. The five steel plates are fixed by bolts, and the lead screw passes through the locating seats. However, when this type of locating seat is subjected to a large external force, it may cause the locating seat to deform, that is, the five steel plates will deflect to one side, and the overall structure of the locating seat will become a parallelogram-like structure. At this time, the locating seat will produce a tangential extrusion force on the lead screw, which will affect the transmission accuracy of the lead screw and, in severe cases, the lead screw will not be able to work normally. Utility Model Content

[0003] The utility model aims to solve the above problems and designs a strong and precise centerless grinder support and positioning seat, which solves the problem that the existing positioning seat is easy to deform, thus affecting the normal operation of the lead screw.

[0004] The technical solution of the utility model to achieve the above-mentioned purpose is to provide a strong and sturdy centerless grinder precision support and positioning seat, comprising an integrally cast positioning seat body, one side of the positioning seat body is formed with an angle connection part for tightly contacting the two adjacent side surfaces on the guide rail of the grinder, and the two planes where the angle connection part is in tight contact with the guide rail are both formed with mounting holes for mounting bolts, and the mounting holes are strip-shaped holes so as to adjust the left and right mounting positions of the positioning seat body;

[0005] The positioning seat body is provided with a through hole which penetrates front and back and is used for installing a lead screw. The top of the positioning seat body is provided with a hole which is convenient for connecting the lead screw and the coupling together, and the hole is communicated with the through hole.

[0006] Preferably, at least one gasket for adjusting the height of the positioning seat body is placed between the corner connecting portion and the top surface of the guide rail.

[0007] Preferably, the gasket is formed with holes for accommodating bolts.

[0008] Preferably, the outer end of the gasket extends outward to form a grabbing portion.

[0009] Preferably, a connecting plate is provided on one side of the positioning seat body, and the connecting plate and the positioning seat body are arranged at an angle to form the angle connecting portion.

[0010] Preferably, two rows of mounting holes are arranged on the connecting plate along the axial direction of the lead screw, and three rows of mounting holes are arranged on the lower side of the positioning seat body from top to bottom.

[0011] Preferably, the lateral spacings between the three rows of mounting holes on the positioning seat body are not consistent.

[0012] Preferably, a reinforcing rib is provided on one side of the positioning seat body, the reinforcing rib is integrally connected to the positioning seat body and the connecting plate respectively, and a rounded corner is formed at the connection between the positioning seat body and the connecting plate.

[0013] Preferably, a rounded corner is formed at the lower end of the outer side of the positioning seat body.

[0014] Preferably, a mounting groove for mounting a linear sleeve matching with the lead screw is provided at the position where the through hole on the positioning seat body is located.

[0015] Compared with the prior art, the beneficial effects are:

[0016] The locating seat in the utility model is integrally cast and has stronger firmness and rigidity, so it is not easy to bend and deform due to external force, which may cause the locating seat to squeeze the lead screw and affect the normal operation of the lead screw. During installation, the angle connection formed on the locating seat can perfectly match the guide rail on the grinder, and the two planes of the angle connection will be in close contact with the two adjacent side surfaces on the guide rail and fixed by bolts. The mounting holes on the two planes of the angle connection are strip holes, so as to adjust the installation position of the locating seat in the width direction of the guide rail. After the lead screw passes through the through hole on the locating seat, the fastener can be inserted through the hole on the top of the locating seat to connect and fix the coupling to the lead screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the positioning seat in the utility model;

[0018] Figure 2 It is a structural schematic diagram of the positioning seat in the utility model from another perspective;

[0019] Figure 3 It is a schematic diagram of the structure of the gasket;

[0020] Figure 4 It is a schematic diagram of the structure when the positioning seat is installed on the guide rail;

[0021] Figure 5 This is a schematic diagram of the structure from another perspective when the positioning seat is installed on the guide rail.

[0022] In the figure, 1. positioning seat body; 11. connecting plate; 12. reinforcing rib; 101. corner connection part; 102. through hole; 103. hole; 104. mounting groove; 105. mounting hole; 2. gasket; 201. hole; 202. grabbing part; 3. guide rail; 4. lead screw; 5. linear bushing; 6. motor guide wheel seat. DETAILED DESCRIPTION

[0023] 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. Based on the embodiments of 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.

[0024] like Figure 1 and Figure 2 As shown, a preferred embodiment of the utility model proposes a strong precision support positioning seat for a centerless grinder, the entire positioning seat is integrally formed of ductile iron material, the positioning seat includes a positioning seat body 1, wherein a connecting plate 11 is arranged on the side of the positioning seat body 1, the connecting plate 11 is perpendicular to the positioning seat body 1 and is integrally connected, the connecting plate 11 and the lower end of the positioning seat body 1 together form an angle connection part 101, the grinding machine is provided with a guide rail 3, and the angle connection part 101 will be tightly connected to the end of the guide rail 3 during installation (that is, the bottom plane of the connecting plate 11 and the side of the positioning seat body 1 will be in close contact with the top surface and the side of the guide rail 3 respectively, so that the contact area between the positioning seat and the guide rail 3 can be increased, and the tightness is stronger).

[0025] The angle between the connecting plate 11 and the positioning seat body 1 is not necessarily a right angle. The angle is determined based on the angle between two adjacent planes on the guide rail 3 that are in contact with the positioning seat, that is, the angle between the connecting plate 11 and the positioning seat body 1 is consistent with the angle between two adjacent planes on the guide rail 3 that are in contact with the positioning seat.

[0026] refer to Figure 1 Two reinforcing ribs 12 are also provided on the side of the positioning seat body 1. The two reinforcing ribs 12 are respectively located on both sides of the connecting plate 11 and are integrally connected to the connecting plate 11 and the positioning seat body 1, so as to strengthen the connection between the connecting plate 11 and the positioning seat body 1. In addition, fillets are provided at the connection between the reinforcing ribs 12 and the connecting plate 11 and the positioning seat body 1, so as to strengthen the connection and prevent cracking due to excessive stress.

[0027] A through hole 102 is provided on the positioning seat body 1, which is used to install the screw 4. At the same time, a square installation groove 104 is provided at the front end of the through hole 102 (that is, the side of the positioning seat body 1 deviating from the guide rail 3). Several bolt holes are provided in the installation groove 104. The installation groove 104 is used to install and fix the linear sleeve 5. The linear sleeve 5 is fixed in the installation groove 104 by bolts, and the screw 4 passes through the linear sleeve 5.

[0028] There is a hole 103 at the top of the positioning seat body 1 which is vertically connected to the through hole 102. When one end of the lead screw 4 is inserted into the through hole 102, it will be connected to the coupling, and the other end of the coupling will be connected to the output end of the servo motor. The lead screw 4 and the coupling can be connected together through the hole 103, and are generally connected by fasteners such as bolts or screws.

[0029] At the same time, a round hole is also provided on the side of the positioning seat body 1 away from the guide rail 3 for installing and fixing the servo motor.

[0030] like Figure 4 , Figure 5 As shown, during installation, the corner connection part 101 is connected to the guide rail 3 and then fixed by bolts.

[0031] refer to Figure 1 Therefore, two rows of mounting holes 105 are provided on the connecting plate 11. The two rows of mounting holes 105 are respectively located at the front and rear ends of the connecting plate 11. There are two mounting holes 105 in each row, and the four mounting holes 105 are evenly distributed. This can strengthen the connectivity between the connecting plate 11 and the top surface of the guide rail 3. When the positioning seat is subjected to force, the connecting plate 11 will not warp forward and backward.

[0032] refer to Figure 2 Three rows of mounting holes 105 are arranged on the lower side of the positioning seat body 1, and the three rows of mounting holes 105 are distributed up and down. The top row has one mounting hole 105, the middle row has two mounting holes 105, and the bottom row also has two mounting holes 105. The lateral spacing between the two mounting holes 105 in the middle row is the largest, and the spacing between the two mounting holes 105 in the bottom row is smaller. The distribution of these five mounting holes 105 is similar to the five fixed points of a five-pointed star, which can strengthen the connection between the positioning seat body 1 and the end face of the guide rail 3, so that the positioning seat body 1 will not tilt forward and backward.

[0033] In this embodiment, each mounting hole 105 is a strip-shaped hole, which can be oblong or square. The reason for designing it in this shape is to facilitate the adjustment of the installation position of the positioning seat in the width direction of the guide rail 3, so that the through hole 102 on the positioning seat body 1 is coaxial with the hole 201 of the machine tool guide wheel seat on the guide rail 3.

[0034] refer to Figure 4 , Figure 5 At the same time, a gasket 2 can be placed between the top surface of the guide rail 3 and the connecting plate 11. The number of gaskets 2 can be stacked up and down. The upper and lower heights of the positioning seat can be adjusted by controlling the number of gaskets 2 placed. The purpose is the same, so that the through hole 102 on the positioning seat body 1 is coaxial with the hole 201 of the machine tool guide wheel seat on the guide rail 3.

[0035] refer to Figure 3 When the gaskets 2 are stacked, two gaskets 2 can be placed in each layer, close to the two sides of the guide rail 3 respectively. The gasket 2 has two holes 201 for avoiding bolts. After the bolts are inserted into the mounting holes 105 on the connecting plate 11, the bolts will pass through the holes 201 on the gasket 2 and be threadedly connected with the guide rail 3. The shape of the hole 201 on the gasket 2 can be circular or strip-shaped. After the bolts pass through the holes 201 on the gasket 2, they can also play a role in positioning the gasket 2.

[0036] A side of the gasket 2 close to the outer side of the guide rail 3 is also protruded outward to form a grasping portion 202, so as to manually take the gasket 2 and adjust the placement position of the gasket 2.

[0037] A rounded corner is also provided on the lower side of the positioning seat body 1 away from the guide rail 3, the purpose of which is to strengthen the body and prevent cracking due to stress. It can also save materials, make it more beautiful, eliminate edges and corners, and prevent bumps.

[0038] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.

Claims

1. A strong and precise support and positioning seat for a centerless grinder, characterized in that: The invention comprises an integrally cast positioning seat body (1), one side of the positioning seat body (1) is formed with an angle connection part (101) for being in close contact with two adjacent side surfaces on a guide rail (3) of a grinding machine, and two planes where the angle connection part (101) and the guide rail (3) are in close contact are formed with mounting holes (105) for mounting bolts, and the mounting holes (105) are strip-shaped holes so as to adjust the left and right mounting positions of the positioning seat body (1); The positioning seat body (1) has a through hole (102) that runs through from front to back and is used to install the lead screw (4). The top of the positioning seat body (1) has a hole (103) that facilitates connecting the lead screw (4) and the coupling together, and the hole (103) is connected to the through hole (102).

2. A strong and sturdy centerless grinder precision support and positioning seat according to claim 1, characterized in that: At least one gasket (2) for adjusting the height of the positioning seat body (1) is placed between the corner connection portion (101) and the top surface of the guide rail (3).

3. A strong and sturdy centerless grinder precision support and positioning seat according to claim 2, characterized in that: The gasket (2) is formed with holes (201) for accommodating bolts.

4. A strong and precise support and positioning seat for a centerless grinder according to claim 3, characterized in that: The outer end of the gasket (2) extends outwards to form a grabbing portion (202).

5. The strong and sturdy centerless grinder precision support and positioning seat according to claim 1, characterized in that: A connecting plate (11) is provided on one side of the positioning seat body (1), and the connecting plate (11) and the positioning seat body (1) are arranged at an angle to form the angle connecting portion (101).

6. A strong and sturdy centerless grinder precision support and positioning seat according to claim 5, characterized in that: Two rows of mounting holes (105) are arranged on the connecting plate (11) along the axial direction of the lead screw (4), and three rows of mounting holes (105) are arranged on the lower side of the positioning seat body (1) from top to bottom.

7. A strong and sturdy centerless grinder precision support and positioning seat according to claim 6, characterized in that: The lateral spacings between the three rows of mounting holes (105) on the positioning seat body (1) are all inconsistent.

8. The strong and sturdy centerless grinder precision support and positioning seat according to claim 6, characterized in that: A reinforcing rib (12) is provided on one side of the positioning seat body (1), the reinforcing rib (12) is integrally connected to the positioning seat body (1) and the connecting plate (11), and a rounded corner is formed at the connection between the positioning seat body (1) and the connecting plate (11).

9. The strong and precise support and positioning seat for a centerless grinder according to claim 1, characterized in that: The lower end of the outer side of the positioning seat body (1) is formed with a rounded corner.

10. The strong and precise support and positioning seat for a centerless grinder according to claim 1, characterized in that: A mounting groove (104) for mounting a linear sleeve (5) matched with the lead screw (4) is provided at the position where the through hole (102) on the positioning seat body (1) is located.

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