Lathe fixture facilitating workpiece taking

Abstract

The utility model relates to the technical field of lathe fixtures, in particular to a lathe fixture convenient for taking workpieces, which comprises a mounting seat used for being mounted on a lathe, a supporting seat is fixed at the front end of the mounting seat, a driving seat is movably connected in the mounting seat, and the driving seat is connected with a driving piece in the lathe; two pressing rod units are further connected to the front end of the installation base in an inserted mode, and the pressing rod units are located at the inner end of the installation base and connected with the driving base. In addition, a detachable connecting structure is adopted between the whole pressing rod unit and the driving base, in the specific operation process, the pressing rod can be conveniently replaced so as to adapt to the pressing requirement of workpieces with different thicknesses, and meanwhile the convenience of replacement and overhaul is met.

Description

Technical Field

[0001] The utility model relates to the technical field of lathe fixtures, in particular to a lathe fixture facilitating workpiece taking and placing. Background Art

[0002] The crankshaft of an automotive cylinder block refers to the crankshaft installed on the cylinder block of an automotive engine. The crankshaft is one of the core components of the engine. It is connected to the piston through a connecting rod, converting the reciprocating up-and-down motion of the piston into the rotational motion of the crankshaft, thereby driving the power output of the vehicle.

[0003] A crank is generally composed of parts such as a shaft rod, a crank, and a balance weight. When a crank-like workpiece is drilled, it is clamped and positioned by a clamping tooling on a machine tool, and then the drilling operation is carried out. Common machine tool fixtures include chuck-type fixtures and rear-pulling fixtures. The chuck-type fixture is a common technical structure, and the rear-pulling fixture can refer to a lathe drilling rear-pulling fixture disclosed in the prior application with Chinese Patent Publication No. "CN221110799U".

[0004] For the current rear-pulling fixture, its pressure head is generally designed for linear movement. In the initial state, a part of the pressure head blocks the front of the mounting seat, thus affecting the installation and the convenience of workpiece taking and placing. Therefore, to solve this problem, we propose a lathe fixture facilitating workpiece taking and placing. Content of the Utility Model

[0005] The purpose of the utility model is to propose a lathe fixture facilitating workpiece taking and placing to solve the shortcomings in the prior art that a part of the pressure head blocks the front of the mounting seat, affecting the installation and the convenience of workpiece taking and placing.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] Design a lathe fixture facilitating workpiece taking and placing, including a mounting seat for installation on a lathe. A support seat is fixed at the front end of the mounting seat. A driving seat is movably connected inside the mounting seat, and the driving seat is connected to a driving member inside the lathe;

[0008] Two pressure rod units are also inserted at the front end of the mounting seat. The pressure rod units are located at the inner end of the mounting seat and are connected to the driving seat. A direction-changing structure is provided between the pressure rod units and the mounting seat, and the direction-changing structure is used to drive the pressure rod units to rotate when moving.

[0009] Furthermore, the pressure rod unit includes a pressure rod and a pressure block fixed at the end of the pressure rod. The pressure block and the pressure rod form an L-shaped structural member.

[0010] Further, a notch is provided at the end of the pressure rod, a rectangular groove is provided on the end face of the pressure block, the rectangular groove is sleeved outside the notch, and the pressure block and the pressure rod are connected by a fastener.

[0011] Further, the direction-changing structure includes a direction-changing groove provided on the outer side of the pressure rod, one end of the direction-changing groove extends to the end of the pressure rod, and a guide post is fixedly installed in the hole position of the mounting seat for accommodating the pressure rod, and the guide post cooperates with the direction-changing groove.

[0012] Further, a plug rod is fixedly installed at the end of the pressure rod, the plug rod is inserted into the side of the driving seat, and a locking structure is also connected between the plug rod and the driving seat.

[0013] Further, the locking structure includes a sliding rod inserted into the pressure rod and extending outside the plug rod. A retraction groove is provided on the outer peripheral surface of the sliding rod, a through hole is provided on the outer side of the plug rod, and a retaining ball protruding outside the through hole is arranged between the plug rod and the retraction groove;

[0014] Wherein a guiding groove is provided on the outer peripheral surface of the pressure rod, a sliding block sliding in the guiding groove is fixed at the end of the sliding rod, and a spring is fixedly installed between the sliding rod and the inner side surface of the pressure rod.

[0015] A lathe fixture for facilitating the picking up of workpieces proposed by the present utility model has the beneficial effects that: in the present utility model, the design of two rotatable pressure rod units is adopted, and the design method of rotational movement is adopted, which can realize the front avoidance of the workpiece to avoid blocking the installation and picking up space of the workpiece, so as to realize the convenient picking up operation of the workpiece. In addition, a detachable connection structure is adopted between the entire pressure rod unit and the driving seat. During specific operations, the pressure rod can be conveniently replaced to adapt to the pressing requirements of workpieces with different thicknesses, and at the same time, the convenience of replaceable maintenance is satisfied. Description of the Drawings

[0016] Figure 1 is a perspective view of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the pressure rod unit of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the locking structure of the present utility model.

[0019] In the figure: 1, mounting seat; 2, support seat; 3, drive seat; 4, pressure bar unit; 41, pressure bar; 411, notch; 42, pressure block; 421, rectangular groove; 43, insertion rod; 5, direction-changing structure; 51, direction-changing groove; 52, guide post; 6, locking structure; 61, sliding rod; 62, retraction groove; 63, stop bead; 64, guiding groove; 65, shifting block; 66, spring. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Refer to Figures 1-3 The present invention discloses a lathe fixture convenient for picking up workpieces. The lathe fixture includes a mounting seat 1 for mounting on a lathe. A support seat 2 is fixed at the front end of the mounting seat 1. The support seat 2 is used for sleeving workpieces. A drive seat 3 is movably connected inside the mounting seat 1. The drive seat 3 is connected to a driving member inside the lathe. Preferably, the driving member is a drive shaft arranged inside the lathe. The drive shaft is fixedly connected to the drive seat 3. Specifically, the drive shaft can be driven forward and backward by an oil cylinder to drive two pressure bar units 4 to move to achieve a clamping action.

[0022] Furthermore, two pressure bar units 4 are also inserted at the front end of the mounting seat 1. The pressure bar units 4 are located at the inner end of the mounting seat 1 and are connected to the drive seat 3. A direction-changing structure 5 is arranged between the pressure bar units 4 and the mounting seat 1. The direction-changing structure 5 is used to drive the pressure bar units 4 to rotate when moving. By adopting a design method of a rotating action, it is possible to achieve frontal avoidance of the workpiece to avoid blocking the installation and picking-up space of the workpiece, so as to realize a convenient picking-up operation of the workpiece.

[0023] In some embodiments, in the present invention, the pressure bar unit 4 includes a pressure bar 41 and a pressure block 42 fixed at the end of the pressure bar 41. The pressure block 42 and the pressure bar 41 form an L-shaped structural member. Preferably, the pressure block 42 is a Z-shaped structural member, and one end of it is connected to the pressure bar 41. Among them, in the present invention, the pressure bar 41 is connected to the drive seat 3.

[0024] Based on the above embodiments, in this embodiment, a notch 411 is provided at the end of the pressure rod 41, a rectangular groove 421 is provided on the end face of the pressure block 42, the rectangular groove 421 is sleeved outside the notch 411, and the pressure block 42 and the pressure rod 41 are connected by a fastener. In this embodiment, the fastener is preferably a bolt. By using the cooperation mode of the rectangular groove 421 and the notch 411, the convenient installation and positioning of the pressure block 42 can be realized, so as to improve the accuracy of assembly and the clamping stability of the workpiece.

[0025] In some embodiments, the direction-changing structure 5 includes a direction-changing groove 51 provided on the outer side of the pressure rod 41. In this embodiment, the direction-changing groove 51 is generally in a Z-shaped structure, which is mainly used to cooperate with the guide post 52 to drive it to rotate by 90 degrees when moving.

[0026] One end of the direction-changing groove 51 extends to the end of the pressure rod 41. In this way, the pressure rod 41 can be inserted into the inside of the mounting seat 1 along the end of the direction-changing groove 51 and the guide post 52. A guide post 52 is fixedly installed in the hole position of the mounting seat 1 that accommodates the pressure rod 41, and the guide post 52 cooperates with the direction-changing groove 51.

[0027] That is to say, when the driving seat 3 drives the pressure rod 41 to move during work, the cooperation of the guide post 52 and the direction-changing groove 51 can drive the entire pressure rod 41 to rotate. In the initial state, the pressure block 42 and the mounting seat 1 are not opposite to each other front and back. After rotation, the pressure block 42 is facing the front side of the mounting seat 1, so as to be pressed against the workpiece after further movement to complete the clamping action.

[0028] In some embodiments, a plug rod 43 is fixedly installed at the end of the pressure rod 41. The plug rod 43 is inserted into the side of the driving seat 3, and a locking structure 6 is also connected between the plug rod 43 and the driving seat 3.

[0029] Based on the above embodiments, in this embodiment, the locking structure 6 includes a sliding rod 61 inserted into the pressure rod 41 and extending outside the plug rod 43. A retraction groove 62 is provided on the outer peripheral surface of the sliding rod 61, a through hole is provided on the outer side of the plug rod 43, and a stop bead 63 protruding outside the through hole is provided between the plug rod 43 and the retraction groove 62;

[0030] Wherein, a guiding groove 64 is provided on the outer peripheral surface of the pressure rod 41, a dial block 65 sliding in the guiding groove 64 is fixed at the end of the sliding rod 61, and a spring 66 is fixedly installed between the inner side surface of the sliding rod 61 and the pressure rod 41.

[0031] When specifically installing the pressure rod 41, first pull the dial block 65 to drive the slide rod 61 to move. When the retraction groove 62 on the outer side of the slide rod 61 is opposite to the stop bead 63, at this time, the stop bead 63 moves downward along the arc surface of the retraction groove 62 until the upper end of the stop bead 63 retracts into the through hole. At this time, the pressure rod 41 can be inserted into the interior of the mounting seat 1, and the insertion rod 43 is inserted into the side hole of the drive seat 3. After the insertion and positioning are completed, release the pressure on the dial block 65. Driven by the spring 66, the slide rod 61 moves forward, and the retraction groove 62 abuts the stop bead 63 to move upward until the upper end surface of the stop bead 63 protrudes outside the through hole and stops at the side of the drive seat 3. In this way, the assembly between the pressure rod 41 and the drive seat 3 can be completed. With this detachable structure design, the convenient replacement of the pressure rod 41 can be realized to adapt to the pressing requirements of workpieces with different thicknesses, and at the same time, the convenience of replaceable maintenance is satisfied.

[0032] In summary, in the present utility model, the design of two rotatable pressure rod units 4 is adopted, and the design method of rotational movement is used to realize the front avoidance of the workpiece, so as to avoid blocking the installation and taking space of the workpiece, thus realizing the convenient taking operation of the workpiece. In addition, a detachable connection structure is adopted between the entire pressure rod unit 4 and the drive seat 3. During specific operation, the convenient replacement of the pressure rod 41 can be realized to adapt to the pressing requirements of workpieces with different thicknesses, and at the same time, the convenience of replaceable maintenance is satisfied.

[0033] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A lathe fixture for facilitating the picking and placing of workpieces, comprising a mounting base (1) for mounting on a lathe, characterized in that: A support base (2) is fixed to the front end of the mounting base (1). A driving base (3) is movably connected inside the mounting base (1), and the driving base (3) is connected to a driving member inside the lathe; Two pressure rod units (4) are also inserted at the front end of the mounting base (1). The pressure rod units (4) are located at the inner end of the mounting base (1) and are connected to the driving base (3). A direction-changing structure (5) is provided between the pressure rod units (4) and the mounting base (1), and the direction-changing structure (5) is used to drive the pressure rod units (4) to rotate when moving.

2. The lathe fixture for facilitating workpiece picking according to claim 1, wherein: The pressure rod unit (4) includes a pressure rod (41) and a pressure block (42) fixed to the end of the pressure rod (41). The pressure block (42) and the pressure rod (41) form an L-shaped structural member.

3. The lathe fixture for facilitating workpiece picking according to claim 2, characterized in that: A notch (411) is formed at the end of the pressure rod (41). A rectangular groove (421) is formed on the end face of the pressure block (42). The rectangular groove (421) is sleeved outside the notch (411), and the pressure block (42) and the pressure rod (41) are connected by fasteners.

4. The lathe fixture for facilitating the picking and placing of workpieces according to claim 2, wherein: The direction-changing structure (5) includes a direction-changing groove (51) formed on the outside of the pressure rod (41). One end of the direction-changing groove (51) extends to the end of the pressure rod (41). A guide post (52) is fixedly installed in the hole position of the mounting base (1) for accommodating the pressure rod (41), and the guide post (52) cooperates with the direction-changing groove (51).

5. The lathe fixture for facilitating workpiece picking according to claim 2, characterized in that: A plug rod (43) is also fixedly installed at the end of the pressure rod (41). The plug rod (43) is inserted into the side of the driving base (3), and a locking structure (6) is also connected between the plug rod (43) and the driving base (3).

6. The lathe fixture for facilitating the picking and placing of workpieces according to claim 5, characterized in that: The locking structure (6) includes a sliding rod (61) inserted inside the pressure rod (41) and extending outside the plug rod (43). A retraction groove (62) is formed on the outer peripheral surface of the sliding rod (61). A through hole is formed on the outside of the plug rod (43), and a stop bead (63) protruding outside the through hole is provided between the plug rod (43) and the retraction groove (62); Wherein a guiding groove (64) is formed on the outer peripheral surface of the pressure rod (41). A dial block (65) sliding in the guiding groove (64) is fixed to the end of the sliding rod (61). A spring (66) is fixedly installed between the sliding rod (61) and the inner side surface of the pressure rod (41).

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