CN220902598U - Frock clamp for lathe - Google Patents

Abstract

The application discloses a fixture for a machine tool, which comprises a base and a fastener, wherein a plurality of T-shaped grooves are formed in the base in parallel, each T-shaped groove comprises a fixed groove and a mounting groove communicated with the fixed groove, the fixed groove is positioned above the mounting groove, the width of the mounting groove is larger than that of the fixed groove, the fastener comprises a fastening screw rod, a fastening nut, a compacting plate and a self-locking nut, the fastening nut is in threaded connection with the fastening screw rod, the self-locking nut comprises a locking part and a fixed part, the linear distance between the long edges of the two sides of the fixed part is smaller than that of the fixed groove, and the linear distance between the short edges of the two sides of the fixed part is larger than that of the fixed groove. When people need to temporarily increase the number of fasteners, only the self-locking nuts on the fastening screw rod are directly inserted into the T-shaped grooves, and then the fastening screw rod is rotated, so that the fastening screw rod cannot be separated from the T-shaped grooves, the number of the fasteners is increased, and the machining efficiency of workpieces is ensured.

Description

Frock clamp for lathe

Technical Field

The application relates to the field of fixtures, in particular to a tool fixture for a machine tool.

Background

Work clamps are usually mounted on the work table of the machine tool. The fixture comprises a base and a fastener, wherein a plurality of T-shaped grooves are formed in the base, the fastener comprises a screw and a nut, a fastening plate used for compressing a workpiece is sleeved on the screw, one end of the screw is connected with a fixing block, the screw and the fixing block are combined into a T shape, the screw and the fixing block slide in from one end of the T-shaped groove, the fastening plate is used for compressing a workpiece, and finally the nut is screwed, so that the workpiece to be processed can be fixed on the base.

Currently, a patent with publication number CN116160070a discloses a tool fixture for machining a gear ring and a use method thereof, including: the workbench is provided with a T-shaped groove; the positioning block is arranged on the workbench; the clamping component is arranged on the workbench and in front of the positioning block, and comprises: the tool screw rod, the pressing plate and the compression nut; the T-shaped block is arranged in a T-shaped groove of the workbench, the positioning block and the clamping component are fixed and connected through the T-shaped block, and the compression nut on the tool screw drives the pressing plate to press the gear ring to clamp the gear ring.

With respect to the related art described above, the inventors consider that there are the following drawbacks: when the number of clamping assemblies needs to be increased, the T-shaped blocks need to be slid into the T-shaped grooves from one ends of the T-shaped grooves, time and labor are wasted, and the machining efficiency of the workpiece is affected, so that improvement is needed.

Disclosure of utility model

Aiming at the defects of the prior art, the application provides a tool clamp for a machine tool, and aims to solve the problems.

The utility model provides a frock clamp for lathe, includes base and fastener, a plurality of T type groove has been seted up side by side on the base, T type groove includes the fixed slot and with the mounting groove of fixed slot intercommunication, the fixed slot is located the top of mounting groove, the width of mounting groove is greater than the width of fixed slot, the fastener includes fastening screw, fastening nut, pressure strip and self-locking nut, the pressure strip cover is established on fastening screw, fastening nut and fastening screw threaded connection, self-locking nut includes locking part and transversal parallelogram's fixed part of personally submitting, locking part and fixed part fixed connection, joint hole with fastening screw threaded connection has been run through jointly on locking part and the fixed part, the straight line distance between the long limit in fixed part both sides is less than the width of fixed slot, the straight line distance between the short limit in fixed part both sides is greater than the width of fixed slot.

Through adopting above-mentioned technical scheme, when the work piece begins processing, when people need temporarily increase the quantity of fastener, only need with the lock nut direct insertion T type inslot on the fastening screw, rotate the fastening screw afterwards, lock nut rotates along with the fastening screw, lock nut's the both sides minor face and the opposite sides wall butt of fixed slot of fixed part for lock nut can' T continue to rotate, lock nut's fixed part and the upper end inside wall of mounting groove hugs closely this moment, make the fastening screw can' T break away from T type groove, thereby increase the quantity of fastener, labour saving and time saving, ensure the machining efficiency of work piece.

Optionally, the cross section of locking part is diamond-shaped, the distance between the opposite sides of locking part is less than the width of fixed slot, the length of the cross section symmetry major axis of locking part is greater than the width of fixed slot, the edge of two obtuse angles departments of locking part all sets up to the cambered surface.

Through adopting above-mentioned technical scheme, after locking part card goes into the fixed slot, rotates fastening screw, and locking part also rotates under fastening screw's drive, and the closed angle at locking part both ends can hug closely with the inside wall of fixed slot to the restriction self-locking nut continues to rotate.

Optionally, a positioning cushion block is arranged between the compacting plate and the upper end surface of the base.

Through adopting above-mentioned technical scheme, according to the work piece thickness of waiting to process, place the location cushion of suitable thickness in advance between pressure strip and base, then screw fastening nut for pressure strip compresses tightly the location cushion, makes the distance that keeps between pressure strip and the base, thereby the work piece of being convenient for blocks fast between pressure strip and the base.

Optionally, an elastic anti-slip pad is arranged on one side of the fixing part facing the locking part.

Through adopting above-mentioned technical scheme, the slipmat can improve the frictional force between fixed part and the mounting groove inside wall to avoid the fixed part to take place unexpected slip in the mounting groove.

Optionally, the one side integrated into one piece towards fixed part of slipmat has the fixed column, set up on the fixed part and supply fixed column male fixed orifices, fixed column and fixed orifices interference fit.

Through adopting above-mentioned technical scheme, when changing the slipmat, only need take out the fixed column in the fixed orifices, can separate slipmat and fixed part to be convenient for change the slipmat alone.

Optionally, one end of the fixed column far away from the anti-slip pad is connected with a hemispherical guide block.

Through adopting above-mentioned technical scheme, the guide block can give a guiding action of fixed column to make the fixed column can insert in the fixed orifices fast, improve the installation effectiveness of slipmat.

In summary, the present application includes at least one of the following beneficial technical effects:

1. When the work piece begins to process, people need to temporarily increase the quantity of fasteners, only need to insert the self-locking nut on the fastening screw directly in the T type groove, rotate the fastening screw afterwards, self-locking nut rotates along with the fastening screw, the both sides minor face of the fixed part of self-locking nut and the opposite sides wall butt of mounting groove for self-locking nut can' T continue to rotate, the fixed part of self-locking nut is hugged closely with the upper end inside wall of mounting groove this moment, make the fastening screw unable break away from the T type groove, thereby increase the quantity of fasteners, labour saving and time saving, ensure the machining efficiency of work piece.

2. After the locking part is clamped into the fixed groove, the fastening screw rod is rotated, the locking part is driven by the fastening screw rod to rotate, sharp angles at two ends of the locking part are clung to the inner side wall of the fixed groove, and therefore the self-locking nut is limited to continue to rotate.

3. According to the thickness of the workpiece to be processed, the positioning cushion block with proper thickness is placed between the pressing plate and the base in advance, and then the fastening nut is screwed, so that the pressing plate presses the positioning cushion block, the distance between the pressing plate and the base is kept, and the workpiece can be conveniently and rapidly clamped between the pressing plate and the base.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present application.

Fig. 2 is an enlarged schematic view of the area a in fig. 1.

Fig. 3 is a schematic structural view of a self-locking nut according to an embodiment of the present application.

Fig. 4 is an exploded view of a self-locking nut in an embodiment of the present application.

Reference numerals illustrate:

1. A base; 11. a T-shaped groove; 111. a fixing groove; 112. a mounting groove; 2. a fastener; 21. fastening a screw; 22. a fastening nut; 23. a compacting plate; 24. a self-locking nut; 241. a locking part; 242. a fixing part; 2421. a fixing hole; 243. a connection hole; 3. positioning cushion blocks; 4. an anti-slip pad; 41. fixing the column; 42. and a guide block.

Detailed Description

In order that the application may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

The embodiment of the application discloses a tool clamp for a machine tool. Referring to fig. 1 and 2, the base comprises a plurality of fasteners 2 and a rectangular parallelepiped base 1.

Referring to fig. 1 and 2, a plurality of T-shaped grooves 11 are formed in the base 1 in parallel, the T-shaped grooves 11 include a fixing groove 111 and a mounting groove 112 communicating with the fixing groove 111, the fixing groove 111 is located above the mounting groove 112, and the width of the mounting groove 112 is greater than the width of the fixing groove 111.

Referring to fig. 2 and 3, the fastener 2 includes a fastening screw 21, a fastening nut 22, a pressing plate 23, and a self-locking nut 24. The compacting plate 23 is sleeved on the fastening screw 21, the fastening nut 22 is in threaded connection with the fastening screw 21, and the fastening nut 22 is used for propping against the compacting plate 23, so that the compacting plate 23 can compact a workpiece to be processed. The self-locking nut 24 includes a locking portion 241 and a fixing portion 242 having a parallelogram cross section, the locking portion 241 is fixedly connected with the fixing portion 242, and a connecting hole 243 for threaded connection with the fastening screw 21 is formed in the locking portion 241 and the fixing portion 242. The linear distance between the long sides of the fixing portion 242 is smaller than the width of the fixing groove 111, and the linear distance between the short sides of the fixing portion 242 is larger than the width of the fixing groove 111. The cross section of the locking part 241 is diamond-shaped, the distance between two opposite sides of the locking part 241 is smaller than the width of the fixing groove 111, the length of the symmetrical long axis of the cross section of the locking part 241 is larger than the width of the fixing groove 111, and the edges at two obtuse angles of the locking part 241 are all arc surfaces.

When the workpiece starts to be processed, people need to temporarily increase the number of the fasteners 2, only the self-locking nuts 24 on the fastening screw rods 21 are required to be directly inserted into the T-shaped grooves 11, then the fastening screw rods 21 are rotated, the self-locking nuts 24 rotate along with the fastening screw rods 21, the short sides of the two sides of the fixing parts 242 of the self-locking nuts 24 are abutted against the opposite side walls of the mounting grooves 112, the sharp corners of the two ends of the locking parts 241 are abutted against the inner side walls of the mounting grooves 111, so that the self-locking nuts 24 are limited to continuously rotate, the self-locking nuts 24 cannot continuously rotate, and at the moment, the fixing parts 242 of the self-locking nuts 24 are tightly attached to the inner side walls of the upper ends of the mounting grooves 112, so that the fastening screw rods 21 cannot be separated from the T-shaped grooves 11, the number of the fasteners 2 is increased, time and labor are saved, and the processing efficiency of the workpiece is ensured.

Referring to fig. 2, a positioning cushion block 3 is installed between the pressing plate 23 and the upper end surface of the base 1. According to the thickness of the workpiece to be processed, the positioning cushion block 3 with proper thickness is placed between the pressing plate 23 and the base 1 in advance, and then the fastening nut 22 is screwed, so that the pressing plate 23 presses the positioning cushion block 3, the distance between the pressing plate 23 and the base 1 is kept, and the workpiece can be conveniently and rapidly clamped between the pressing plate 23 and the base 1.

Referring to fig. 2 and 3, an elastic anti-slip pad 4 is detachably coupled to a side of the fixing portion 242 facing the locking portion 241, and the anti-slip pad 4 is made of a rubber material. The anti-slip pad 4 can increase the friction between the fixing portion 242 and the inner side wall of the installation groove 112, thereby avoiding the unexpected sliding of the fixing portion 242 in the installation groove 112.

Referring to fig. 3 and 4, the fixing posts 41 are integrally formed at both ends of the anti-slip pad 4 facing the fixing portion 242, and the fixing posts 41 have good elasticity. The fixing portion 242 is provided with a fixing hole 2421 into which the fixing post 41 is inserted, and the fixing post 41 is in interference fit with the fixing hole 2421. When the anti-skid pad 4 is replaced, the anti-skid pad 4 can be separated from the fixing part 242 only by taking the fixing column 41 out of the fixing hole 2421, thereby being convenient for replacing the anti-skid pad 4 alone.

Referring to fig. 4, a hemispherical guide block 42 is fixedly coupled to one end of the fixing column 41 remote from the anti-slip pad 4. The guide block 42 can provide a guiding function to the fixing post 41, so that the fixing post 41 can be rapidly inserted into the fixing hole 2421, and the installation efficiency of the anti-slip pad 4 is improved.

The implementation principle of the tool clamp for the machine tool provided by the embodiment of the application is as follows: when the workpiece starts to be processed, people need to temporarily increase the number of the fasteners 2, only the self-locking nuts 24 on the fastening screw 21 are required to be directly inserted into the T-shaped grooves 11, then the fastening screw 21 is rotated, the self-locking nuts 24 rotate along with the fastening screw 21, the two short sides of the fixing parts 242 of the self-locking nuts 24 are abutted against the two opposite side walls of the mounting grooves 112, so that the self-locking nuts 24 cannot continue to rotate, at the moment, the fixing parts 242 of the self-locking nuts 24 are tightly attached to the inner side walls of the upper ends of the mounting grooves 112, and the fastening screw 21 cannot be separated from the T-shaped grooves 11, so that the number of the fasteners 2 is increased, time and labor are saved, and the processing efficiency of the workpiece is ensured.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (6)

1. The utility model provides a frock clamp for lathe, includes base (1) and fastener (2), its characterized in that: the base (1) is provided with a plurality of T-shaped grooves (11) in parallel, each T-shaped groove (11) comprises a fixing groove (111) and a mounting groove (112) communicated with the fixing groove (111), each fixing groove (111) is located above each mounting groove (112), the width of each mounting groove (112) is larger than that of each fixing groove (111), each fastener (2) comprises a fastening screw (21), a fastening nut (22), a pressing plate (23) and a self-locking nut (24), each pressing plate (23) is sleeved on each fastening screw (21), each fastening nut (22) is in threaded connection with each fastening screw (21), each self-locking nut (24) comprises a locking part (241) and a fixing part (242) with a parallelogram cross section, each locking part (241) is fixedly connected with each fixing part (242), connecting holes (21) in threaded connection with the fastening screws (21) are formed in a penetrating mode, and the two sides of each fixing part (241) are smaller than the straight line width of each fixing groove (111) and the two sides of each fixing part (242) are larger than the straight line width of each fixing groove (111).

2. A tool clamp for a machine tool according to claim 1, wherein: the cross section of locking portion (241) is the diamond-shaped, the distance between the opposite sides of locking portion (241) is less than the width of fixed slot (111), the length of the cross section symmetry major axis of locking portion (241) is greater than the width of fixed slot (111), the edge of two obtuse angles departments of locking portion (241) all sets up to the cambered surface.

3. A tool clamp for a machine tool according to claim 1, wherein: a positioning cushion block (3) is arranged between the pressing plate (23) and the upper end face of the base (1).

4. A tool clamp for a machine tool according to claim 1, wherein: an elastic anti-slip pad (4) is arranged on one side of the fixing part (242) facing the locking part (241).

5. The tool clamp for the machine tool according to claim 4, wherein: the anti-slip pad (4) is provided with a fixing column (41) towards one side of a fixing part (242) in an integrated mode, the fixing part (242) is provided with a fixing hole (2421) for the fixing column (41) to be inserted into, and the fixing column (41) is in interference fit with the fixing hole (2421).

6. The tool clamp for the machine tool according to claim 5, wherein: one end of the fixed column (41) far away from the anti-slip pad (4) is connected with a hemispherical guide block (42).