Special-shaped workpiece positioning tool for grinding lathe

Abstract

The utility model discloses a special-shaped workpiece positioning tool for a grinding lathe, which comprises a clamping seat and a motor, the clamping seat is mounted above a mounting seat and used for clamping a special-shaped workpiece, the motor is mounted on one side of the mounting seat, a containing groove is formed in the mounting seat, a first threaded rod is mounted in the containing groove, and a second threaded rod is mounted in the containing groove. And second threaded rods are mounted in the accommodating grooves in the two ends of the first threaded rod. The fixing mechanism is arranged, the hand wheel is rotated, and under the action of threaded connection, the second threaded sleeve further drives the fixing block to be inserted into the fixing groove, so that the function of fixed connection is completed, when disassembly is needed, reverse operation is needed, the operation is simple and easy, convenience is brought to workers, and the working efficiency is improved. And through installation and connection between the clamping seat and the connecting block, the clamping seat can be replaced or overhauled at any time according to actual needs, the service life of the clamping seat is effectively prolonged, and the use value of the clamping seat is effectively increased.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding lathes, in particular to a positioning tool for special-shaped workpieces used in grinding lathes. Background Art

[0002] A grinding lathe is a machine tool specially used for precision grinding of metal and non-metal materials. Its main feature is that it can efficiently remove burrs on the surface of the workpiece and improve the accuracy and finish of the workpiece surface. During the use of the grinding lathe, the workpiece needs to be clamped and positioned;

[0003] Chinese patent authorization announcement number CN21448964U discloses a positioning fixture for a lathe, which relates to the field of fixture technology and solves the problem that the clamp block and the clamp head cannot be installed separately through structural improvements; the auxiliary heat dissipation of the clamp seat and the drive motor cannot be achieved through structural improvements during use. A positioning fixture for a lathe includes a clamp seat; the clamp seat is connected to a motor shaft, and four clamp heads are installed on the clamp seat in a circular array. There are four push rods in total, and the four push rods are slidably connected to the four clamp blocks respectively; the head and tail ends of the four push rods are both hemispherical structures, and the head ends of the four push rods are in contact with the plug-in protrusions; the toggle block is welded on the clamp head, and the tail end of the toggle block is in contact with the push rod; the head end of the toggle block is an inclined structure, and the toggle block and the push rod together constitute the clamp block's top fixing structure. The above-mentioned existing technical solution has the following shortcomings: this technical solution is achieved by opening the through holes in an inclined shape with an inclination angle of 60 degrees, and the through holes opened in a rectangular array together constitute the wind heat dissipation structure of the clamp seat, but the technical solution has certain limitations in clamping, and can only clamp workpieces of a single shape, and it is difficult to clamp special-shaped workpieces, and it cannot meet the different needs of users. Therefore, we need to design a special-shaped workpiece positioning tool for a grinding lathe to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide a positioning fixture for special-shaped workpieces for a grinding lathe, so as to solve the problem that the clamping space has certain limitations proposed in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special-shaped workpiece positioning tool for a grinding lathe, comprising a clamping seat, which is installed above the mounting seat, and the clamping seat is used to clamp the special-shaped workpiece, and also includes a motor, which is installed on one side of the mounting seat, the mounting seat is provided with a receiving groove, and a first threaded rod is installed in the receiving groove, and a second threaded rod is installed in the receiving groove at both ends of the first threaded rod, and the second threaded rod is connected to the first threaded rod by a pulley, and when the first threaded rod rotates, the second threaded rods at both ends also rotate synchronously, a first threaded sleeve is installed on the outer side of the first threaded rod and the second threaded rod, and a connecting block is installed on the top of the first threaded sleeve, the connecting block and the clamping seat are connected by a fixing mechanism, and a working plate is installed between the clamping seat and the clamping seat.

[0006] Preferably, a first clamping plate is installed inside the clamping seat, and a second connecting shaft is installed inside the clamping seat at the bottom end of the first clamping plate, a second clamping plate is installed inside the first clamping plate, and a first connecting shaft is installed inside the first clamping plate at the bottom end of the second clamping plate, and the first connecting shaft can drive the second clamping plate to rotate inside the first clamping plate.

[0007] Preferably, the cross-sections of the first clamping plate and the second clamping plate are both arranged to be semicircular, which is conducive to the rotation of the first clamping plate and the second clamping plate.

[0008] Preferably, the fixing mechanism includes a handwheel, which is installed on one side of the clamping seat, the bottom end of the clamping seat is provided with a first built-in groove, and the first built-in groove is provided with a forward and reverse screw, the output end of the handwheel is connected to the forward and reverse screw, the outer side of the forward and reverse screw is evenly provided with a second threaded sleeve, and the bottom end of the second threaded sleeve is provided with a fixing block, the interior of the connecting block is provided with a second built-in groove, and connecting blocks are provided on both sides of the second built-in groove, and the connecting blocks are connected to the fixing block.

[0009] Preferably, the cross-section of the fixing block is arranged to be L-shaped, and the L-shape can enlarge the contact area between the fixing block and the fixing groove.

[0010] Preferably, elastic flexible parts are evenly installed on the inner side of the second clamping plate, and the material of the elastic flexible parts is rubber.

[0011] Preferably, the connecting block is connected to the first threaded sleeve via a guide block, and guide grooves are evenly arranged on the top of the first threaded sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By providing a fixing mechanism, the hand wheel is turned and under the action of the threaded connection, the second threaded sleeve further drives the fixing block to be inserted into the inside of the fixing groove, thereby completing the function of the fixed connection. When disassembly is required, the reverse operation can be performed, which is simple and easy, bringing convenience to the staff. By installing and connecting the clamping seat and the connecting block, the clamping seat can be replaced or repaired at any time according to actual needs, effectively extending the service life and use value of the clamping seat;

[0014] During the clamping process, when the second clamping plate touches the edge of the workpiece, the second clamping plate can be rotated under the action of the first connecting shaft so that it can be as close to the edge of the workpiece as possible. When further clamping, the second clamping plate will also drive the first clamping plate to rotate so that it is attached to the outside of the workpiece, thereby achieving the effect of special-shaped clamping.

[0015] By installing elastic flexible parts, and the material of the elastic flexible parts is rubber, the flexibility of the rubber material can not only clamp workpieces of different shapes but also protect the workpieces to prevent the clamping seat from causing certain damage to the workpiece under hard clamping;

[0016] By setting the shape of the fixing block to be L-shaped, the L-shape can expand the contact area between the fixing block and the fixing groove, so that the tightness of the connection between the clamping seat and the connecting block can be increased;

[0017] By starting the motor, the first threaded rod can be driven to rotate, and under the action of the pulley connection, the second threaded rods at both ends can be further driven to rotate. At the same time, under the threaded connection, the clamping seat can be driven to move, so that the special-shaped workpiece can be clamped and limited, thereby enhancing the practicality of the lathe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the top cross-sectional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0021] Figure 3 It is a front view cross-sectional structural schematic diagram of the utility model;

[0022] Figure 4 This is a schematic diagram of the front cross-sectional structure of the fixing mechanism of the utility model;

[0023] Figure 5 This is a schematic diagram of the front cross-sectional structure of the clamping seat of the utility model;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the clamping seat of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. mounting seat; 2. receiving groove; 3. pulley; 4. motor; 5. first threaded rod; 6. second threaded rod; 7. first threaded sleeve; 8. clamping seat; 9. first clamping plate; 10. second clamping plate; 11. elastic flexible part; 12. working plate; 13. connecting block; 14. first built-in groove; 15. positive and negative thread screw; 16. fixing block; 17. second built-in groove; 18. fixing groove; 19. second threaded sleeve; 20. hand wheel; 21. first connecting shaft; 22. second connecting shaft. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment 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.

[0027] Embodiment 1

[0028] See also Figure 1-6 The utility model provides a special-shaped workpiece positioning tool for a grinding lathe, including a clamping seat 8, which is installed above the mounting seat 1, and the clamping seat 8 is used to clamp the special-shaped workpiece, and also includes a motor 4, which is installed on one side of the mounting seat 1, and the mounting seat 1 is provided with a receiving groove 2, and the first threaded rod 5 is installed inside the receiving groove 2, and the second threaded rod 6 is installed inside the receiving groove 2 at both ends of the first threaded rod 5, and the second threaded rod 6 is connected to the first threaded rod 5 through a pulley 3. When the first threaded rod 5 rotates, the second threaded rods 6 at both ends also rotate synchronously, and the first threaded rod 5 is installed on the outer side of the first threaded rod 5 and the second threaded rod 6, and the top of the first threaded sleeve 7 is installed with a first threaded sleeve 7, and the top of the first threaded sleeve 7 is installed with a connecting block 13, and the connecting block 13 and the clamping seat 8 are connected through a fixing mechanism, and a working plate 12 is installed between the clamping seat 8 and the clamping seat 8, and the connecting block 13 and the first threaded sleeve 7 are connected through a guide block, and the top of the first threaded sleeve 7 is evenly provided with guide grooves.

[0029] In this embodiment, when it is necessary to clamp the workpiece during use, the starting motor 4 can drive the first threaded rod 5 to rotate, and under the action of the pulley 3 connection, the second threaded rod 6 at both ends can be further driven to rotate. At the same time, under the threaded connection, the clamping seat 8 can be driven to move, so as to be able to clamp and limit the special-shaped workpiece. At the same time, the clamping seat 8 can be limited and guided through the guide block and the guide groove.

[0030] Embodiment 2

[0031] This embodiment also includes: a first clamping plate 9 is installed inside the clamping seat 8, and a second connecting shaft 22 is installed inside the clamping seat 8 at the bottom end of the first clamping plate 9, a second clamping plate 10 is installed inside the first clamping plate 9, and a first connecting shaft 21 is installed inside the first clamping plate 9 at the bottom end of the second clamping plate 10, the cross-sections of the first clamping plate 9 and the second clamping plate 10 are both arranged to be semicircular, which is conducive to the rotation of the first clamping plate 9 and the second clamping plate 10, and the inner side of the second clamping plate 10 is evenly installed with elastic soft parts 11, and the material of the elastic soft parts 11 is rubber.

[0032] In this embodiment, when in use, the clamping seat 8 moves to the workpiece. When the second clamping plate 10 touches the edge of the workpiece, under the action of the first connecting shaft 21, the direction of the second clamping plate 10 can be rotated so that it can be as close to the edge of the workpiece as possible. When further clamped, the second clamping plate 10 will also drive the first clamping plate 9 to rotate so that it is attached to the outside of the workpiece, thereby achieving the effect of special-shaped clamping.

[0033] Embodiment 3

[0034] This embodiment also includes: the fixing mechanism includes a handwheel 20, which is installed on one side of the clamping seat 8, and the bottom end inside the clamping seat 8 is provided with a first built-in groove 14, and the first built-in groove 14 is provided with a forward and reverse screw 15, the output end of the handwheel 20 is connected to the forward and reverse screw 15, the outer side of the forward and reverse screw 15 is evenly provided with a second threaded sleeve 19, and the bottom end of the second threaded sleeve 19 is provided with a fixed block 16, the inside of the connecting block 13 is provided with a second built-in groove 17, and connecting blocks 13 are provided on both sides of the second built-in groove 17, and the connecting blocks 13 are connected to the fixing blocks 16, and the cross-section of the fixing blocks 16 is provided in an L shape, and the L shape can expand the contact area between the fixing block 16 and the fixing groove 18.

[0035] In this embodiment, when installing during use, the hand wheel 20 is turned and under the action of the threaded connection, the second threaded sleeve 19 further drives the fixing block 16 to be inserted into the interior of the fixing groove 18, thereby completing the function of fixed connection. When disassembly is required, the reverse operation can be performed. It is simple and easy, and brings convenience to the staff. Through the installation connection between the clamping seat 8 and the connecting block 13, the clamping seat 8 can be replaced or repaired at any time according to actual needs, which effectively extends the service life and use value of the clamping seat 8.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A tool for positioning a special-shaped workpiece for a grinding lathe, comprising a clamping seat (8) mounted above a mounting seat (1), and the clamping seat (8) is used to clamp the special-shaped workpiece, characterized in that: The invention also comprises a motor (4), which is mounted on one side of a mounting seat (1); a receiving groove (2) is provided inside the mounting seat (1), and a first threaded rod (5) is installed inside the receiving groove (2); second threaded rods (6) are installed inside the receiving grooves (2) at both ends of the first threaded rod (5); the second threaded rod (6) is connected to the first threaded rod (5) through a pulley (3); when the first threaded rod (5) rotates, the second threaded rods (6) at both ends also rotate synchronously; first threaded sleeves (7) are installed on the outer sides of the first threaded rod (5) and the second threaded rod (6); a connecting block (13) is installed on the top of the first threaded sleeve (7); the connecting block (13) is connected to a clamping seat (8) through a fixing mechanism; a working plate (12) is installed between the clamping seats (8).

2. The positioning fixture for a special-shaped workpiece for a grinding lathe according to claim 1, characterized in that: The first clamping plate (9) is installed inside the clamping seat (8), and the second connecting shaft (22) is installed inside the clamping seat (8) at the bottom end of the first clamping plate (9). The second clamping plate (10) is installed inside the first clamping plate (9), and the first connecting shaft (21) is installed inside the first clamping plate (9) at the bottom end of the second clamping plate (10). The first connecting shaft (21) can drive the second clamping plate (10) to rotate inside the first clamping plate (9).

3. The positioning fixture for a special-shaped workpiece for a grinding lathe according to claim 2, characterized in that: The cross-sections of the first clamping plate (9) and the second clamping plate (10) are both arranged to be semicircular, which is conducive to the rotation of the first clamping plate (9) and the second clamping plate (10).

4. The positioning fixture for a special-shaped workpiece for a grinding lathe according to claim 1, characterized in that: The fixing mechanism comprises a hand wheel (20) which is mounted on one side of the clamping seat (8); a first built-in groove (14) is provided at the bottom end of the clamping seat (8); a positive and negative threaded screw (15) is installed inside the first built-in groove (14); an output end of the hand wheel (20) is connected to the positive and negative threaded screw (15); a second threaded sleeve (19) is evenly installed on the outer side of the positive and negative threaded screw (15); a fixing block (16) is installed at the bottom end of the second threaded sleeve (19); a second built-in groove (17) is provided inside the connecting block (13); connecting blocks (13) are provided on both sides of the second built-in groove (17); and the connecting blocks (13) are connected to the fixing block (16).

5. The positioning fixture for a special-shaped workpiece for a grinding lathe according to claim 4, characterized in that: The cross-section of the fixing block (16) is arranged to be L-shaped, and the L-shape can enlarge the contact area between the fixing block (16) and the fixing groove (18).

6. The positioning fixture for a special-shaped workpiece for a grinding lathe according to claim 2, characterized in that: Elastic flexible parts (11) are evenly installed on the inner side of the second clamping plate (10), and the material of the elastic flexible parts (11) is rubber.

7. The positioning fixture for a special-shaped workpiece for a grinding lathe according to claim 1, characterized in that: The connecting block (13) is connected to the first threaded sleeve (7) via a guide block, and guide grooves are evenly arranged on the top of the first threaded sleeve (7).

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