Machining center facilitating machining of special-shaped workpiece

Abstract

The utility model relates to the technical field of workpiece machining, and discloses a machining center convenient for machining special-shaped workpieces, which comprises a frame and a spindle box, the spindle box is mounted on the frame, a translation box is fixedly mounted at the transverse end of the frame, and the translation box is mounted on the frame. Clamping pieces are installed on the two sides of the top of the translation box in an opposite sliding mode, and the clamping pieces on the two sides move towards the middle at the same time and move towards the two sides respectively. According to the machining center facilitating machining of the special-shaped workpiece, after the special-shaped workpiece is clamped, a second electric telescopic rod drives a lifting plate to move downwards, two gear racks below the lifting plate are meshed with corresponding racks, the two gear racks are clamped on the racks to be meshed, the position of a hollow pipe is fixed, the hollow pipe cannot move transversely any more, and the special-shaped workpiece is clamped through a second electric telescopic rod. And the stability of clamping the special-shaped workpiece is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece processing, in particular to a processing center which is convenient for processing special-shaped workpieces. Background Art

[0002] A vertical machining center refers to a machining center with a vertical spindle. Its structure is mostly a fixed column, the machining table is rectangular, and it has no indexing and rotation function. It is suitable for machining discs, sleeves, and plate parts. The vertical machining center is convenient for clamping and positioning workpieces.

[0003] Prior art, such as publication number: CN217571861 U discloses a machining center for convenient processing of special-shaped workpieces, including a base, a spindle box, a spindle, a tool magazine and a fixture, the fixture includes a mounting seat, a mounting plate, a drive assembly and a clamping mechanism, the mounting seat is arranged on the base; there are two mounting plates; the drive assembly is arranged on the mounting seat and connected to the two mounting plates, and can drive the two mounting plates to move relative to or away from each other. The machining center for convenient processing of special-shaped workpieces can not only clamp the workpiece, but also reduce the workpiece material.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when clamping a special-shaped workpiece, a movable clamping column is used to clamp the special-shaped workpiece from the side. After the movable clamping column clamps the special-shaped workpiece, the air ring is inflated to make the clamping piece collide with the movable column, and the movable column is positioned by friction. However, due to the pneumatic friction, if the gas pressure is too high, the air ring will easily burst, and if the gas pressure is too low, the movable column cannot be firmly fixed, and the special-shaped workpiece is not clamped firmly. Utility Model Content

[0005] In view of the above-mentioned prior art, when clamping special-shaped workpieces, a movable clamping column is used to clamp the special-shaped workpiece from the side. After the movable clamping column clamps the special-shaped workpiece, the inflation of the air ring is used to make the clamping piece contact with the movable column, and the movable column is positioned by friction. However, due to the pneumatic friction, if the gas pressure is too high, the air ring will easily burst, and if the gas pressure is too low, the movable column cannot be firmly fixed. The problem of poor clamping of special-shaped workpieces is solved, and the utility model is proposed.

[0006] Therefore, the utility model aims to provide a machining center that is convenient for machining special-shaped workpieces, and its purpose is to fix the movable column after clamping the special-shaped workpiece by means of clamping, so as to make it firm and stable.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a machining center for convenient processing of special-shaped workpieces, comprising a frame and a spindle box, and the spindle box is installed on the frame, a translation box is fixedly installed at the lateral end of the frame, and clamping members are slidably installed on both sides of the top of the translation box in a relative state, and the clamping members on both sides move toward the middle at the same time and toward both sides respectively;

[0008] The clamping member includes a horizontal box, a bottom plate is welded to the bottom of one side of the horizontal box, a row of clamping structures is welded to the side of the inner wall of the horizontal box away from the bottom plate, and an entrance and exit for the clamping structure to pass through is opened on the side of the horizontal box close to the bottom plate, a row of clamping structures is fixedly installed on the top of the horizontal box, and each clamping structure corresponds to a clamping structure, and at the same time, the clamping structure locks the clamping structure.

[0009] As a preferred solution of a machining center that is convenient for machining special-shaped workpieces as described in the utility model, linear motors are installed on both sides of the interior of the translation box, and the driving end of the linear motor is connected to the bottom of the clamping member, and channel cavities are penetrated on both sides of the top of the translation box for the driving end of the linear motor to pass through.

[0010] As a preferred solution of a machining center that facilitates the processing of special-shaped workpieces described in the utility model, the clamping structure includes a guide rod welded to the inner wall of the horizontal box, a hollow tube is movably installed on the guide rod, and the upper surface of the hollow tube is provided with a plane, a retaining ring is welded on one end of the outer wall of the hollow tube close to the guide rod, and a spring is sleeved on the outer wall of the guide rod.

[0011] As a preferred solution of the machining center for facilitating the machining of special-shaped workpieces described in the utility model, limit strips are welded on both sides of the outer wall of the guide rod, and limit grooves matching the limit strips are opened on both sides of the inner wall of the hollow tube.

[0012] As a preferred solution of the machining center for convenient machining of special-shaped workpieces described in the utility model, a rubber block is bonded to one end of the hollow tube away from the retaining ring, and the thickness of the rubber block is one centimeter.

[0013] As a preferred solution of a machining center that facilitates the processing of special-shaped workpieces described in the utility model, the clamping structure includes an L-shaped plate, a second electric telescopic rod is fixedly installed on the top of the L-shaped plate, and the movable end of the second electric telescopic rod is located inside the horizontal box, and a movable channel for the movable end of the second electric telescopic rod to pass through is opened on the top of the horizontal box, and a lifting plate is fixedly installed on the movable end of the second electric telescopic rod.

[0014] As a preferred solution of the machining center for facilitating the machining of special-shaped workpieces described in the utility model, a rack is welded at the plane end of the hollow tube, and teeth are welded on both sides of the bottom of the lifting plate, and the teeth are meshed with the rack.

[0015] As a preferred solution of a machining center for facilitating the processing of special-shaped workpieces described in the utility model, the clamping structure also includes an electric telescopic rod installed on the top of the horizontal box, and the movable end of the electric telescopic rod is fixedly connected to the vertical end of the L-shaped plate.

[0016] Beneficial effects of the utility model:

[0017] 1. In the utility model, when the linear motor stops moving, the hollow tube is pushed toward the direction of the special-shaped workpiece under the elastic reset action of the spring, and the special-shaped workpiece is clamped between the hollow tubes on both sides under the force of the spring. A plurality of hollow tubes are in point-like contact with the special-shaped workpiece. According to the irregularity of the edge of the special-shaped workpiece, the degree of force extrusion on the spring is different, which is suitable for clamping the special-shaped workpiece.

[0018] 2. In the utility model, after the special-shaped workpiece is clamped, the electric telescopic rod 2 drives the lifting plate to move downward, so that the two toothed bars below it mesh with the corresponding racks, so that the two toothed bars are engaged with the racks, and the position of the hollow tube is fixed. The hollow tube can no longer move laterally, thereby ensuring the stability of clamping the special-shaped workpiece. When the toothed bar is engaged with the rack, the extension and retraction of the electric telescopic rod 1 drives the L-shaped plate to move, and adjusts the position between the toothed bar and the rack, so that the toothed bar and the rack can be accurately and firmly in an engaged state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a machining center which is convenient for machining special-shaped workpieces.

[0021] Figure 2 The utility model is a structural schematic diagram of a clamping member of a machining center for convenient machining of special-shaped workpieces.

[0022] Figure 3 The utility model is a schematic structural diagram of a clamping structure of a machining center for convenient machining of special-shaped workpieces.

[0023] Figure 4 The utility model is a structural schematic diagram of a clamping structure of a machining center for convenient machining of special-shaped workpieces.

[0024] Description of reference numerals:

[0025] 1. Frame; 2. Spindle box; 3. Translation box; 4. Channel cavity; 5. Clamping part; 51. Horizontal box; 52. Bottom plate; 53. Clamping structure; 531. Guide rod; 532. Limiting strip; 533. Spring; 534. Retaining ring; 535. Hollow tube; 536. Rack; 537. Rubber block; 54. Inlet and outlet; 55. Clamping structure; 551. Electric telescopic rod 1; 552. L-shaped plate; 553. Electric telescopic rod 2; 554. Lifting plate; 555. Tooth bar. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] Example 1

[0028] Reference Figure 1-4 , which is the first embodiment of the utility model, provides a machining center for convenient processing of special-shaped workpieces. This machining center for convenient processing of special-shaped workpieces includes a frame 1 and a spindle box 2, and the spindle box 2 is installed on the frame 1, and a translation box 3 is fixedly installed at the lateral end of the frame 1. Clamping members 5 are slidably installed on both sides of the top of the translation box 3 in a relative state, and the clamping members 5 on both sides move toward the middle at the same time and toward both sides respectively;

[0029] The clamping member 5 includes a horizontal box 51, a bottom plate 52 is welded to the bottom of one side of the horizontal box 51, a row of clamping structures 53 is welded to the side of the inner wall of the horizontal box 51 away from the bottom plate 52, and an entrance and exit 54 for the clamping structure 53 to pass through is opened on the side of the horizontal box 51 close to the bottom plate 52, and a row of clamping structures 55 are fixedly installed on the top of the horizontal box 51, and each clamping structure 55 corresponds to a clamping structure 53, and at the same time, the clamping structure 55 locks the clamping structure 53.

[0030] Linear motors are installed on both sides of the translation box 3, and the driving end of the linear motor is connected to the bottom of the clamping member 5. Channel cavities 4 for the driving end of the linear motor to pass through are opened on both sides of the top of the translation box 3.

[0031] The clamping structure 53 includes a guide rod 531 welded to the inner wall of the horizontal box 51, and a hollow tube 535 is movably installed on the guide rod 531, and a plane hollow tube 535 is provided on the upper surface of the hollow tube 535, which passes through the inlet and outlet 54 and extends to the outside of the horizontal box 51. A retaining ring 534 is welded on one end of the outer wall of the hollow tube 535 close to the guide rod 531, and the retaining ring 534 is located inside the horizontal box 51, and a spring 533 is sleeved on the outer wall of the guide rod 531.

[0032] The process of the clamping structure 53 for resisting and clamping the special-shaped workpiece is as follows: when the edge of the special-shaped workpiece contacts the rubber block 537, the rubber block 537 applies a force to the hollow tube 535 to move in the direction of the guide rod 531, so that the retaining ring 534 compresses the spring 533. When the linear motor stops moving, the hollow tube 535 is pushed in the direction of the special-shaped workpiece under the elastic reset action of the spring 533. Under the force of the spring, the special-shaped workpiece is clamped between the hollow tubes 535 on both sides. Multiple hollow tubes 535 are in point-like contact with the special-shaped workpiece. According to the irregularity of the edge of the special-shaped workpiece, the degree of force and compression on the spring 533 is different, which is suitable for clamping special-shaped workpieces.

[0033] Limiting strips 532 are welded on both sides of the outer wall of the guide rod 531 , and limiting sliding grooves matching the limiting strips 532 are opened on both sides of the inner wall of the hollow tube 535 .

[0034] A rubber block 537 is bonded to one end of the hollow tube 535 away from the retaining ring 534 , and the thickness of the rubber block 537 is one centimeter. Due to the deformable characteristics of the rubber block 537 , it can fully contact with the edge of the heterogeneous workpiece.

[0035] During use, the linear motors on both sides drive the clamping members 5 on both sides to move outward to expand the distance between the clamping members 5 on both sides. When the distance between the clamping members 5 on both sides is larger than the size of the special-shaped workpiece, the special-shaped workpiece is placed between the clamping members 5 on both sides. At this time, the linear motors drive the clamping members 5 on both sides to move toward the middle at the same time, and the special-shaped workpiece is placed between the bottom plates 52 on both sides. The clamping members 5 on both sides continue to move toward the middle, and the clamping structure 53 will be connected with the side of the special-shaped workpiece and clamped between the clamping structures 53 on both sides.

[0036] Example 2

[0037] Reference Figure 1-4 , which is the second embodiment of the utility model, and this embodiment is different from the first embodiment in that:

[0038] The clamping structure 55 includes an L-shaped plate 552, on the top of which an electric telescopic rod 553 is fixedly installed, and the movable end of the electric telescopic rod 553 is located inside the horizontal box 51. The top of the horizontal box 51 is provided with a movable channel for the movable end of the electric telescopic rod 553 to pass through, and a lifting plate 554 is fixedly installed on the movable end of the electric telescopic rod 553.

[0039] A rack 536 is welded at the flat end of the hollow tube 535, and toothed bars 555 are welded on both sides of the bottom of the lifting plate 554, and the toothed bars 555 are meshed with the rack 536. The two toothed bars 555 are engaged on the rack 536 to fix the position of the hollow tube 535. The hollow tube 535 can no longer move laterally, thereby ensuring the stability of clamping special-shaped workpieces.

[0040] The clamping structure 55 also includes an electric telescopic rod 551 installed on the top of the horizontal box 51, and the movable end of the electric telescopic rod 551 is fixedly connected to the vertical end of the L-shaped plate 552. When the toothed bar 555 and the rack 536 are engaged and clamped, the extension and retraction of the electric telescopic rod 551 drives the L-shaped plate 552 to move, and adjusts the position between the toothed bar 555 and the rack 536, so that the toothed bar 555 and the rack 536 can be accurately and firmly in an engaged and clamped state.

[0041] During use, when the special-shaped workpiece is clamped, the electric telescopic rod 553 drives the lifting plate 554 to move downward, so that the two toothed bars 555 below it mesh with the corresponding racks 536, so that the two toothed bars 555 are engaged with the racks 536, and the position of the hollow tube 535 is fixed. The hollow tube 535 can no longer move laterally, thereby ensuring the stability of clamping the special-shaped workpiece.

[0042] The remaining structures are the same as those of Example 1.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A machining center for conveniently machining special-shaped workpieces, comprising a frame (1) and a spindle box (2), wherein the spindle box (2) is mounted on the frame (1), characterized in that: A translation box (3) is fixedly mounted at the lateral end of the frame (1), and clamping members (5) are slidably mounted on both sides of the top of the translation box (3) in a relative state, and the clamping members (5) on both sides move toward the middle at the same time and toward both sides respectively; The clamping member (5) comprises a transverse box (51), a bottom plate (52) is welded to the bottom of one side of the transverse box (51), a row of clamping structures (53) is welded to the side of the inner wall of the transverse box (51) away from the bottom plate (52), and an inlet and outlet (54) for the clamping structures (53) to pass through is provided on the side of the transverse box (51) close to the bottom plate (52), a row of clamping structures (55) is fixedly installed on the top of the transverse box (51), and each clamping structure (55) corresponds to a clamping structure (53), and at the same time, the clamping structure (55) locks the clamping structure (53).

2. A machining center for convenient machining of special-shaped workpieces according to claim 1, characterized in that: Linear motors are installed on both sides of the translation box (3), and the driving end of the linear motor is connected to the bottom of the clamping member (5). Channel cavities (4) for the driving end of the linear motor to pass through are opened on both sides of the top of the translation box (3).

3. A machining center for convenient machining of special-shaped workpieces according to claim 2, characterized in that: The clamping structure (53) comprises a guide rod (531) welded to the inner wall surface of the horizontal box (51); a hollow tube (535) is movably mounted on the guide rod (531); and a plane is provided on the upper surface of the hollow tube (535); a retaining ring (534) is welded to one end of the outer wall of the hollow tube (535) close to the guide rod (531); and a spring (533) is sleeved on the outer wall of the guide rod (531).

4. A machining center for convenient machining of special-shaped workpieces according to claim 3, characterized in that: Limiting strips (532) are welded on both sides of the outer wall of the guide rod (531), and limiting sliding grooves matching the limiting strips (532) are provided on both sides of the inner wall of the hollow tube (535).

5. A machining center for convenient machining of special-shaped workpieces according to claim 4, characterized in that: A rubber block (537) is bonded to one end of the hollow tube (535) away from the retaining ring (534), and the thickness of the rubber block (537) is one centimeter.

6. A machining center for convenient machining of special-shaped workpieces according to claim 5, characterized in that: The clamping structure (55) comprises an L-shaped plate (552), a second electric telescopic rod (553) is fixedly mounted on the top of the L-shaped plate (552), and the movable end of the second electric telescopic rod (553) is located inside the horizontal box (51), a movable channel is opened on the top of the horizontal box (51) for the movable end of the second electric telescopic rod (553) to pass through, and a lifting plate (554) is fixedly mounted on the movable end of the second electric telescopic rod (553).

7. A machining center for convenient machining of special-shaped workpieces according to claim 6, characterized in that: A rack (536) is welded at the plane end of the hollow tube (535), and toothed bars (555) are welded on both sides of the bottom of the lifting plate (554), and the toothed bars (555) are meshed with the rack (536).

8. A machining center for convenient machining of special-shaped workpieces according to claim 7, characterized in that: The clamping structure (55) further comprises an electric telescopic rod (551) mounted on the top of the horizontal box (51), and the movable end of the electric telescopic rod (551) is fixedly connected to the vertical end of the L-shaped plate (552).

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