Machine tool tailstock with center driving and adjusting device

Abstract

The utility model discloses a machine tool tailstock with a centre driving adjusting device, which relates to the technical field of machine tool tailstocks and comprises a base and a centre tailstock body, an adjusting sliding seat capable of sliding left and right is arranged on the surface of the base, and the centre tailstock body slides up and down on the upper side of the adjusting sliding seat. A left shear shank and a right shear shank are arranged between the center tailstock body and the lower side adjusting sliding seat, and a plurality of clamping teeth are fixed to the lower sides of the front end and the rear end of the center tailstock body. According to the machine tool tailstock adjusting device, the up-down height and the left-right position of the center tailstock can be rapidly adjusted, the center corresponds to the axis of a machined workpiece, rapid and accurate adjustment can be conducted according to the size and the shape of the workpiece, operation convenience and flexibility are improved, and the machining efficiency is improved. Through the structure between the locking bolt and the upper side screw rod, rapid and synchronous fixation after height and left-right position adjustment is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool tailstocks, in particular to a machine tool tailstock with a center center driving adjustment device. Background Art

[0002] The tailstock of a machine tool refers to a component installed on the worktable of a machine tool for supporting and fixing a workpiece. The tailstock is usually used to support the other end of the workpiece to ensure that the workpiece remains stable during processing. A centerpiece is installed on it to support the workpiece. The existing machine tool tailstock is not convenient for rapid adjustment of the centerpiece to the axis of the workpiece being processed. There are often multiple adjustment steps, and the adjustment and fixing operations are cumbersome. The traditional method is to move the workpiece to adapt to the centerpiece of the tailstock, which greatly slows down the processing efficiency of the workpiece. Therefore, the present invention proposes a machine tool tailstock with a centerpiece drive adjustment device to solve the problems mentioned in the above background technology. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a machine tool tailstock with a center driving adjustment device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A machine tool tailstock with a center driving adjustment device comprises a base and a center tailstock body, wherein the surface of the base is provided with an adjustment slide which slides left and right, the center tailstock body slides up and down on the upper side of the adjustment slide, left and right scissor racks are provided between the center tailstock body and the lower adjustment slide, a plurality of latching teeth are fixed on the lower sides of the front and rear ends of the center tailstock body, and latching blocks corresponding to the latching teeth are provided on the front and rear upper sides of the adjustment slide.

[0006] Preferably, nuts are provided at the front and rear ends of the adjustment slide, and the nuts are provided with corresponding locking bolts. Slots corresponding to the locking bolts are provided on both sides of the base, and the locking bolts are inserted into the upper nuts to fix the position of the adjustment slide on the base.

[0007] Preferably, two sliding sliders are arranged in the adjusting slide seat, and the left and right lower ends of the scissors frame rotate with the sliders on both sides respectively, and the middle part of the scissors frame is connected to the lower adjusting slide seat, and the left and right parts on the upper side of the scissors frame are connected to the top tailstock body, and the scissors frame can be extended or retracted by retracting or moving away from the sliders on both sides.

[0008] Preferably, the clamping block slides left and right on the adjusting slide, and a spring is provided between the outer side of the clamping block and the inner side of the adjusting slide, and the spring controls the clamping block to maintain the contact with the corresponding inner tooth groove.

[0009] Preferably, an abutment block is provided on the upper outer side of the clamping block and slides up and down on the adjusting slide seat, the inner thread of the abutment block is connected to a screw rod, and the screw rod controls the downward movement of the abutment block, thereby limiting the outward movement of the clamping block.

[0010] Preferably, a limiting groove is provided at the lower end of the screw rod, and a limiting hole corresponding to the lower end of the screw rod is provided inside the upper end of the locking bolt, so that the locking bolt transmits the upper screw rod through the limiting groove and the limiting hole.

[0011] Preferably, a washer is provided on the head of the locking bolt.

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

[0013] 1. The tailstock adjustment device of the machine tool provided in the utility model can realize the rapid adjustment of the up and down height and left and right position of the tailstock of the top, so that the top corresponds to the axis of the workpiece to be processed, and can be adjusted quickly and accurately according to the size and shape of the workpiece, thereby improving the convenience and flexibility of operation;

[0014] 2. The utility model realizes the rapid synchronous fixation after adjusting the height and the left and right positions through the structure between the locking bolt and the upper screw rod. The tailstock of this machine tool can provide a high degree of stability and processing accuracy, ensuring that the workpiece maintains a good position and posture during the processing, and is suitable for workpieces that require high-precision processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a machine tool tailstock with a center center drive adjustment device proposed by the utility model;

[0016] Figure 2 This is a side structural schematic diagram of a machine tool tailstock with a center center drive adjustment device proposed by the utility model;

[0017] Figure 3 The utility model discloses a front sectional structural diagram of a machine tool tailstock with a center driving adjustment device.

[0018] In the figure: 1. base; 2. adjustment slide; 3. top and tail stock body; 4. scissor frame; 5. slide block; 6. locking bolt; 7. screw; 8. resistance block; 9. limit groove; 10. washer; 11. tooth; 12. block; 13. spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-3, a machine tool tailstock with a center driving adjustment device, comprising a base 1 and a center tailstock body 3, the surface of the base 1 is provided with an adjustment slide 2 that slides left and right, the center tailstock body 3 slides up and down on the upper side of the adjustment slide 2, and left and right scissor frames 4 are provided between the center tailstock body 3 and the lower side adjustment slide 2, and two sliding slide blocks 5 are provided in the adjustment slide 2, the left and right lower ends of the scissor frames 4 rotate with the two side slide blocks 5 respectively, and the middle part of the scissor frames 4 is connected to the lower side adjustment slide 2, and the left and right parts of the upper side of the scissor frames 4 are connected to the center tailstock body 3, and the scissor frames 4 are extended and retracted by retracting or moving away from the two side slide blocks 5, thereby realizing the up and down height adjustment of the upper center tailstock body 3, and at the same time, the structure of the middle scissor frame 4 can maintain stable support for the center tailstock body 3;

[0021] Furthermore, referring to Figure 3 , a plurality of latch teeth 11 are fixed on the lower sides of the front and rear ends of the top tailstock body 3, and a latch block 12 corresponding to the latch teeth 11 is arranged on the front and rear upper sides of the adjusting slide 2. The latch block 12 slides left and right on the adjusting slide 2, and a spring 13 is arranged between the outer side of the latch block 12 and the inside of the adjusting slide 2. The spring 13 controls the latch block 12 to maintain the corresponding inner tooth groove. Each time the tailstock height is adjusted up and down, the latch block 12 is always affected by the elastic force of the outer spring 13 and is stuck in the tooth groove at the corresponding position formed by the plurality of latch teeth 11, so as to realize the pre-fixation of the height of the top tailstock body 3 on the adjusting slide 2;

[0022] Furthermore, referring to Figure 1 , 2 The upper outer part of the block 12 is provided with a resistance block 8 that slides up and down on the adjusting slide 2. The resistance block 8 is connected to the screw 7 through the inner thread. The screw 7 controls the resistance block 8 to move downward, thereby limiting the outward movement of the block 12. The resistance block 8 blocks the outward movement channel of the block 12, thereby making the block 12 tightly stuck in the tooth groove at the corresponding position, thereby locking the height of the top tailstock body 3 on the adjusting slide 2;

[0023] Furthermore, referring to Figure 1 , 3 A limiting groove 9 is provided at the lower end of the screw rod 7, and a limiting insertion hole corresponding to the lower end of the screw rod 7 is provided inside the upper end of the locking bolt 6. The locking bolt 6 transmits the upper screw rod 7 through the limiting groove 9 and the limiting insertion hole. A washer 10 is sleeved on the head of the locking bolt 6, and the locking bolt 6 is screwed into the nut so that the washer 10 is close to the left and right lower sides of the base 1 to fix the position of the adjusting slide 2 on the base 1. In the process of the locking bolt 6 rotating and rising, the upper screw rod 7 is linked, and there is still a certain distance between the lower end of the screw 7 and the internal insertion hole of the locking bolt 6. Therefore, when the locking bolt 6 rises, it will not cause interference with the upper screw rod 7.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A machine tool tailstock with a center driving adjustment device, comprising a base (1) and a center tailstock body (3), characterized in that: The surface of the base (1) is provided with an adjustment slide (2) that slides left and right; the top and tail stock body (3) slides up and down on the upper side of the adjustment slide (2); left and right scissor racks (4) are provided between the top and tail stock body (3) and the lower side adjustment slide (2); a plurality of latching teeth (11) are fixed to the lower sides of the front and rear ends of the top and tail stock body (3); and latching blocks (12) corresponding to the latching teeth (11) are provided on the upper sides of the front and rear ends of the adjustment slide (2).

2. The tailstock of a machine tool with a center driving adjustment device according to claim 1, characterized in that: The front and rear ends of the adjusting slide (2) are both provided with nuts, and the nuts are provided with corresponding locking bolts (6). Slots corresponding to the locking bolts (6) are provided on both sides of the base (1). The locking bolts (6) are inserted into the upper nuts to fix the position of the adjusting slide (2) on the base (1).

3. The tailstock of a machine tool with a center driving adjustment device according to claim 1, characterized in that: Two sliding slide blocks (5) are arranged inside the adjusting slide seat (2), and the left and right lower ends of the scissor frame (4) rotate with the two side slide blocks (5) respectively, and the middle part of the scissor frame (4) is connected to the lower adjusting slide seat (2), and the left and right upper parts of the scissor frame (4) are connected to the top and tail stock body (3), and the scissor frame (4) is extended and retracted by closing or moving away from the two side slide blocks (5).

4. The tailstock of a machine tool with a center driving adjustment device according to claim 1, characterized in that: The clamping block (12) slides leftward and rightward on the adjusting slide seat (2), and a spring (13) is arranged between the outer side of the clamping block (12) and the inner side of the adjusting slide seat (2), and the spring (13) controls the clamping block (12) to maintain the contact with the corresponding inner tooth groove.

5. The tailstock of a machine tool with a center driving adjustment device according to claim 1, characterized in that: The upper outer portion of the clamping block (12) is provided with a resistance block (8) which slides up and down on the adjusting slide seat (2); the resistance block (8) is internally threadedly connected to the screw rod (7); the screw rod (7) controls the resistance block (8) to move downward, thereby limiting the outward movement of the clamping block (12).

6. The tailstock of a machine tool with a center driving adjustment device according to claim 5, characterized in that: The lower end of the screw rod (7) is provided with a limiting groove (9), and the upper end of the locking bolt (6) is provided with a limiting insertion hole corresponding to the lower end of the screw rod (7), and the locking bolt (6) is driven to drive the upper screw rod (7) through the limiting groove (9) and the limiting insertion hole.

7. The machine tool tailstock with a center center drive adjustment device according to claim 2, characterized in that: The head of the locking bolt (6) is sleeved with a washer (10).

Images