Center for machining

Abstract

The center for machining comprises a bottom plate, a limiting block is arranged at the upper end of the bottom plate, the top of the limiting block is movably connected with a sliding groove formed in the bottom of a sleeve through a sliding block, a movable groove is formed in the sleeve, an ejector pin is movably arranged in the movable groove, and one end of the ejector pin is fixedly connected with the center. A buffering groove is formed in the other end of the ejector pin, a limiting plate is movably arranged in the buffering groove, a supporting shaft is arranged on one side of the limiting plate, the supporting shaft is movably connected with the ejector pin, the supporting shaft is sleeved with a spring, and the two ends of the spring are in abutting connection with the buffering groove and the limiting plate respectively. According to the center for machining, the center is extruded by a workpiece, the center pin fixed to the center is made to apply pressure to the limiting plate arranged in the buffering groove, then the spring arranged on one side of the limiting plate is used for buffering and counteracting the pressure applied to the center, and therefore the effect of buffering the workpiece is achieved, and the workpiece is prevented from being damaged in the abutting-out process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of center, specifically is a center for machining. BACKGROUND

[0002] In the mechanical industry, the center is an auxiliary tool.

[0003] The center in the prior art in the present process, because stress is bigger, so after long time use, there can be certain bending, but naked eye is inconvenient for observation, through using the bent center, probably to the end surface of workpiece cause certain damage, and can not guarantee its work effect, the traditional center can not play the role of buffering to workpiece, therefore, put forward a kind of center for machining. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of center for machining to solve the problem that the existing center in the prior art cannot play the role of buffering to workpiece.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of center for machining, including bottom plate, the bottom plate upper end is equipped with limiting block, and limiting block inside is inserted with adjustable screw rod, limiting block top is connected with the sliding slot of the sleeve bottom portion opened by sliding block and moves, the sleeve is opened in the inside and moves the groove, and the needle is movably arranged in the groove, one end of the needle is fixedly connected with the center, the other end of the needle is equipped with buffer groove, and limiting plate is movably arranged in the buffer groove, and recess is opened in the limiting plate, and recess is connected with the strip-shaped protrusion inside buffer groove and is engaged, one side of the limiting plate is equipped with support shaft, and support shaft is movably connected with the needle, spring is sleeved on the support shaft, and the both ends of spring are respectively connected with the buffer groove and the limiting plate and abut.

[0006] Preferably, the bottom plate four corners are equipped with fixed screw, and the bottom plate is fixedly connected with machining machine by fixed screw.

[0007] Preferably, the sleeve bottom portion is movably connected with the adjusting screw rod by support block, and the other end of the adjusting screw rod is fixedly connected with the adjusting turntable.

[0008] Preferably, the other side of the limiting plate is equipped with connecting block, and the connecting block is screw-connected with motor screw rod by thread groove in the inside.

[0009] Preferably, the motor screw rod terminal is movably connected with the motor fixed in the sleeve interior.

[0010] Compared with the prior art, the mechanical machining center uses the extrusion of the workpiece on the center to make the fixed center pin of the center press the limiting plate arranged in the buffer groove, and then the spring arranged on one side of the limiting plate buffers and offsets the pressure of the center, so that the workpiece is buffered, and the workpiece is prevented from being damaged during the ejection process. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a schematic diagram of the center structure for mechanical machining of the utility model;

[0012] Fig. 2 It is a schematic diagram of the internal structure of the center for mechanical machining of the utility model;

[0013] Fig. 3 It is a schematic diagram of the center pin and motor connection structure for mechanical machining of the utility model.

[0014] In the figure: 1, bottom plate, 2, fixed screw, 3, support block, 4, center, 5, limiting block, 6, sleeve, 7, adjusting turntable, 8, center pin, 9, movable groove, 10, buffer groove, 11, motor, 12, adjusting screw, 13, support shaft, 14, spring, 15, limiting plate, 16, motor screw, 17, connecting block. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0016] Please refer to Figs. 1-3The utility model provides a technical scheme: A centre for machining, including bottom plate 1, bottom plate 1 four corners are equipped with fixed screw 2, and bottom plate 1 is fixedly connected with processing machinery through fixed screw 2, and fixed screw 2 is convenient for the fixation of bottom plate 1 and other parts, and the upper end of bottom plate 1 is equipped with limiting block 5, and the inside of limiting block 5 is inserted with adjustable screw rod 12, and the top of limiting block 5 is movably connected with the slide groove of the bottom of sleeve 6, and the bottom of sleeve 6 is movably connected with adjustable screw rod 12 through support block 3, and the other end of adjustable screw rod 12 is fixedly connected with adjusting turntable 7, and adjusting turntable 7 is convenient for adjusting the position of sleeve 6 through adjustable screw rod 12, and the inside of sleeve 6 is equipped with movable groove 9, and the inside of movable groove 9 is movably equipped with centre pin 8, and one end of centre pin 8 is fixedly connected with centre 4, and the other end of centre pin 8 is equipped with buffer groove 10, and the inside of buffer groove 10 is movably equipped with limiting plate 15, and the recess of limiting plate 15 is equipped with, and the recess is connected with the strip-shaped lug of the inside of buffer groove 10 and is connected with the strip-shaped lug, and the side of limiting plate 15 is equipped with support shaft 13, and support shaft 13 is movably connected with centre pin 8, and spring 14 is sleeved on support shaft 13, and the both ends of spring 14 are respectively connected with buffer groove 10 and limiting plate 15, and the other side of limiting plate 15 is equipped with connecting block 17, and connecting block 17 is rotatably connected with motor screw 16 through the thread groove in the inside of connecting block 17, limiting plate 15 prevents centre pin 8 from rotating during installation, and the tail end of motor screw 16 is movably connected with motor 11 fixedly arranged in the inside of sleeve 6, and motor 11 drives the motor screw 16 rotatably connected with the thread groove in the side of connecting block 17 to rotate.

[0017] Working principle: when using the centre for machining, first, the position of the end of centre pin 8 with connecting block 17 is placed into sleeve 6, then, the inside of sleeve 6 is fixed with motor 11, and the motor 11 drives the motor screw 16 rotatably connected with the thread groove in the side of connecting block 17 to rotate, and the installation is completed, then, adjusting turntable 7 is rotated, and the fixed adjustable screw rod 12 drives the sleeve 6 with centre 4 to adjust the position between the bottom plate 1, then, the workpiece is pressed against centre 4, and the limiting plate 15 rotatably arranged in the buffer groove 10 is pressed by the centre 4 fixed with centre pin 8, then, the force exerted on centre 4 by spring 14 rotatably arranged on the side of limiting plate 15 is buffered and offset, and the above is the use process of the centre for machining.

[0018] Although the utility model has been explained in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced equivalently, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A machining center, comprising a base plate (1), wherein a limiting block (5) is provided at the upper end of the base plate (1), and an adjusting screw (12) is movably inserted inside the limiting block (5), the top of the limiting block (5) is movably connected to a sliding groove opened at the bottom of a sleeve (6) via a slider, and a movable groove (9) is opened inside the sleeve (6), wherein a ejector pin (8) is movably arranged in the movable groove (9), and one end of the ejector pin (8) is fixedly connected to a machining center (4), characterized in that: The other end of the ejector pin (8) is provided with a buffer groove (10), and a limiting plate (15) is movably arranged in the buffer groove (10), and a groove is formed in the limiting plate (15) and is in clamping connection with a strip-shaped protrusion arranged in the buffer groove (10), one side of the limiting plate (15) is provided with a supporting shaft (13) movably connected with the ejector pin (8), a spring (14) is sleeved on the supporting shaft (13), and the two ends of the spring (14) are in abutting connection with the buffer groove (10) and the limiting plate (15) respectively.

2. A centre for machining according to claim 1, characterised in that: The bottom plate (1) is provided with a fixing screw (2) at four corners, and the bottom plate (1) is fixedly connected with the machining machine through the fixing screw (2).

3. A centre for machining according to claim 1, characterised in that: The bottom of the sleeve (6) is movably connected with the adjusting screw (12) through the supporting block (3), and the other end of the adjusting screw (12) is fixedly connected with the adjusting turntable (7).

4. A centre for machining according to claim 1, characterised in that: The other side of the limiting plate (15) is provided with a connecting block (17), and the connecting block (17) is in screwing connection with the motor screw (16) through a threaded groove.

5. A centre for machining according to claim 4, characterised in that: The motor screw (16) is movably connected with the motor (11) fixedly arranged in the sleeve (6).

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