Clamping fixture for machine tool spindle

Abstract

The utility model provides a clamping fixture for a machine tool spindle, which comprises a base, an air cylinder arranged at the top of the base, an adjusting mechanism arranged at the top of the air cylinder, a moving mechanism arranged at the top of the adjusting mechanism, a fixing sleeve arranged in an inner cavity of the moving mechanism, and an electric cylinder arranged in an inner cavity of the fixing sleeve. A piston rod of the electric cylinder is fixedly connected with a stabilizing plate, connecting mechanisms are arranged on the two sides of the moving mechanism, and an auxiliary mechanism is arranged on one side of the moving mechanism. According to the clamping fixture for the machine tool spindle, the problem that an existing device is inconvenient to disassemble, so that later maintenance is inconvenient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamping clamp for a machine tool spindle. Background Art

[0002] A lathe is a machine tool that mainly uses a turning tool to turn a rotating workpiece. The lathe spindle refers to the axis on the machine tool that drives the workpiece or tool to rotate. The spindle component is usually composed of a spindle, bearings, and transmission parts (gears or pulleys). In the machine, it is mainly used to support transmission parts such as gears and pulleys, transmit motion and torque, such as the machine tool spindle; some are used to clamp workpieces, such as spindles.

[0003] The patent document with authorization announcement number: CN217831886U discloses "a clamping fixture for a machine tool spindle", which involves clamping and fixing spindle bodies of different diameters through the cooperation of three clamping blocks, with firm fixation and convenient operation. Through the cooperation of clamping mechanism No. 1 and clamping mechanism No. 2, the two ends of the spindle body can be clamped and fixed, thereby improving the stability of the spindle body.

[0004] Although the device can clamp and fix spindle bodies of different diameters through the cooperation of three clamping blocks, and the fixation is firm and the operation is convenient, it is troublesome to disassemble it later, and it is inconvenient to disassemble and repair the No. 1 holding mechanism and the No. 2 holding mechanism. Therefore, it is necessary to provide a clamping fixture for machine tool spindles that is easy to repair to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a clamping fixture for a machine tool spindle which is easy to repair.

[0006] The clamping fixture for a machine tool spindle provided by the utility model comprises a base, a cylinder is arranged on the top of the base, an adjusting mechanism is arranged on the top of the cylinder, a moving mechanism is arranged on the top of the adjusting mechanism, a fixing sleeve is arranged in the inner cavity of the moving mechanism, an electric cylinder is arranged in the inner cavity of the fixing sleeve, a piston rod of the electric cylinder is fixedly connected to a stabilizing plate, connecting mechanisms are arranged on both sides of the moving mechanism, and an auxiliary mechanism is arranged on one side of the moving mechanism.

[0007] In order to achieve the purpose of adjusting the spacing of the movable plate, the utility model provides a clamping fixture for a machine tool spindle. Preferably, the adjustment mechanism includes a support table, the inner cavity of the support table is rotatably matched with a screw rod, and the outer side of the screw rod is threadedly connected to a positive thread block.

[0008] In order to improve the stability of the movable plate during movement, the utility model provides a clamping fixture for a machine tool spindle. Preferably, the adjustment mechanism also includes a reverse wire block, both ends of the reverse wire block are fixedly connected to the inner wall of the support platform, the outer side of the reverse wire block is slidably connected to an auxiliary block, and the inner cavity of the auxiliary block is slidably connected to an auxiliary rod.

[0009] In order to achieve the purpose of limiting the position of an object, the utility model provides a clamping fixture for a machine tool spindle. Preferably, the moving mechanism includes a moving plate, a lower fixing hoop is fixedly connected to the top of the moving plate, and an upper fixing hoop is arranged above the lower fixing hoop.

[0010] In order to achieve the purpose of fixing the upper fixing hoop and the lower fixing hoop, the utility model provides a clamping fixture for a machine tool spindle. Preferably, the connecting mechanism includes a first connecting plate and a second connecting plate, one side of the first connecting plate is fixedly connected to the outer side of the upper fixing hoop, one side of the second connecting plate is fixedly connected to the outer side of the lower fixing hoop, the inner cavity of the first connecting plate is provided with a connecting bolt, and the outer side of the connecting bolt is threadedly connected with a connecting nut.

[0011] In order to improve the stability of the support table, the utility model provides a clamping fixture for a machine tool spindle. Preferably, support blocks are fixedly connected to both sides of the base, a limiting rod is fixedly connected to the top of the support block, the outer side of the limiting rod is slidably connected to the limiting block, and one side of the limiting block is slidably connected to one side of the support table.

[0012] In order to improve the stability of the spindle body, the utility model provides a clamping fixture for a machine tool spindle. Preferably, the auxiliary mechanism includes a mounting plate, the mounting plate is fixed to one side of the upper fixing hoop, the inner cavity of the mounting plate is slidably connected with a floating rod, the bottom of the floating rod is fixedly connected with a contact block, the bottom of the mounting plate is welded with a spring, and one end of the spring is welded to the top of the contact block.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The clamping fixture for the machine tool spindle can rotate the connecting nut to remove the connecting nut from the connecting bolt when disassembling the fixing sleeve, and then draw the connecting bolt out of the inner cavity of the first connecting plate and the second connecting plate to release the fixation of the first connecting plate, thereby facilitating the disassembly of the fixing sleeve, thereby facilitating the maintenance of the electric cylinder and the stabilizing plate, and solving the problem that the current device is inconvenient to disassemble and thus inconvenient for later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a preferred embodiment of a clamping fixture for a machine tool spindle provided by the utility model;

[0016] Figure 2 This is a structural cross-sectional view of the support platform of the utility model;

[0017] Figure 3 It is a side structural cross-sectional view of the support platform of the utility model;

[0018] Figure 4 This is a structural side view of the movable plate of the utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure between the upper fixing hoop and the lower fixing hoop of the utility model;

[0020] Figure 6 It is an enlarged schematic diagram of the structure of point A of the utility model.

[0021] Numbers in the figure: 1. base; 2. cylinder; 3. adjusting mechanism; 301. support table; 302. screw rod; 303. positive thread block; 304. negative thread block; 305. auxiliary block; 306. auxiliary rod; 4. moving mechanism; 401. moving plate; 402. lower fixing hoop; 403. upper fixing hoop; 5. fixing sleeve; 6. electric cylinder; 7. stabilizing plate; 8. connecting mechanism; 801. first connecting plate; 802. second connecting plate; 803. connecting bolt; 804. connecting nut; 9. auxiliary mechanism; 901. mounting plate; 902. floating rod; 903. spring; 904. contact block; 10. limit rod; 11. limit block; 12. supporting block. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in Figure 1 A structural schematic diagram of a preferred embodiment of a clamping fixture for a machine tool spindle provided by the utility model; Figure 2 This is a structural cross-sectional view of the support platform of the utility model; Figure 3 It is a side structural cross-sectional view of the support platform of the utility model; Figure 4 This is a structural side view of the movable plate of the utility model; Figure 5 This is a schematic diagram of the connection structure between the upper fixing hoop and the lower fixing hoop of the utility model; Figure 6It is an enlarged schematic diagram of the structure of the utility model at A. A clamping fixture for a machine tool spindle comprises a base 1, a cylinder 2 is arranged on the top of the base 1, an adjusting mechanism 3 is arranged on the top of the cylinder 2, a moving mechanism 4 is arranged on the top of the adjusting mechanism 3, a fixing sleeve 5 is arranged in the inner cavity of the moving mechanism 4, an electric cylinder 6 is arranged in the inner cavity of the fixing sleeve 5, a piston rod of the electric cylinder 6 is fixedly connected to a stabilizing plate 7, connecting mechanisms 8 are arranged on both sides of the moving mechanism 4, and an auxiliary mechanism 9 is arranged on one side of the moving mechanism 4.

[0024] In this embodiment: by providing an adjustment mechanism 3 in cooperation with a moving mechanism 4, the device can be adapted to spindle bodies of different lengths, thereby improving the applicable scope of the device and making it easier for users to use it; by providing a fixing sleeve 5 in cooperation with an electric cylinder 6 and a stabilizing plate 7, the spindle body can be easily fixed, facilitating the next step of work; by providing a connecting mechanism 8, the fixing sleeve 5 can be easily disassembled, thereby facilitating the inspection and repair of the fixing sleeve 5, the electric cylinder 6 and the stabilizing plate 7; and by providing an auxiliary mechanism 9, the user can observe the balance of the spindle body.

[0025] As a technical optimization solution of the utility model, the adjustment mechanism 3 includes a support platform 301, the inner cavity of the support platform 301 is rotatably matched with a screw rod 302, and the outer side of the screw rod 302 is threadedly connected with a positive thread block 303.

[0026] The adjustment mechanism 3 also includes a reverse wire block 304 , both ends of which are fixedly connected to the inner wall of the support platform 301 , an auxiliary block 305 is slidably connected to the outer side of the reverse wire block 304 , and an auxiliary rod 306 is slidably connected to the inner cavity of the auxiliary block 305 .

[0027] The moving mechanism 4 includes a moving plate 401 , a lower fixing hoop 402 is fixedly connected to the top of the moving plate 401 , and an upper fixing hoop 403 is arranged above the lower fixing hoop 402 .

[0028] In this embodiment: the tops of the reverse thread block 304 and the positive thread block 303 are fixedly connected with a movable plate 401. In order to make the device suitable for different lengths, the user can rotate the screw rod 302 to drive the reverse thread block 304 and the positive thread block 303 to move toward opposite positions, thereby driving the two movable plates 401 to move, which is convenient for clamping the spindle bodies of different lengths. By setting the auxiliary block 305 in conjunction with the auxiliary rod 306, the stability of the movable plate 401 during movement is improved.

[0029] As a technical optimization solution of the utility model, the connecting mechanism 8 includes a first connecting plate 801 and a second connecting plate 802, one side of the first connecting plate 801 is fixedly connected to the outer side of the upper fixing hoop 403, one side of the second connecting plate 802 is fixedly connected to the outer side of the lower fixing hoop 402, and the inner cavity of the first connecting plate 801 is provided with a connecting bolt 803, and the outer side of the connecting bolt 803 is threadedly connected with a connecting nut 804.

[0030] In this embodiment: when disassembling the fixing sleeve 5, rotate the connecting nut 804 to remove the connecting nut 804 from the connecting bolt 803, and then pull the connecting bolt 803 out of the inner cavity of the first connecting plate 801 and the second connecting plate 802, so as to release the fixation of the first connecting plate 801, thereby facilitating the disassembly of the fixing sleeve 5 and facilitating the inspection of the electric cylinder 6 and the stabilizing plate 7.

[0031] As a technical optimization solution of the utility model, support blocks 12 are fixedly connected on both sides of the base 1, the top of the support block 12 is fixedly connected to the limiting rod 10, the outer side of the limiting rod 10 is slidably connected to the limiting block 11, and one side of the limiting block 11 is slidably connected to one side of the support platform 301.

[0032] In this embodiment: In order to improve the stability of the support platform 301 when moving, the cylinder 2 drives the support platform 301 when moving, and the support platform 301 drives the limit block 11 to move. The limit block 11 slides on the outside of the limit rod 10, thereby improving stability.

[0033] As a technical optimization solution of the utility model, the auxiliary mechanism 9 includes a mounting plate 901, which is fixed to one side of the upper fixing hoop 403, the inner cavity of the mounting plate 901 is slidably connected with a floating rod 902, the bottom of the floating rod 902 is fixedly connected with a contact block 904, a spring 903 is welded to the bottom of the mounting plate 901, and one end of the spring 903 is welded to the top of the contact block 904.

[0034] In this embodiment: after the main shaft body is inserted into the interior of the fixed sleeve 5, the pulley at the bottom of the contact block 904 contacts the outer side of the main shaft body under the action of the spring 903. When the main shaft body is rotating and the axis is offset, the floating rod 902 will shake. The user can know the changes of the main shaft body according to the changes of the floating rod 902.

[0035] The working principle of a clamping fixture for a machine tool spindle provided by the utility model is as follows:

[0036] A gear is fixed on the outside of the left fixed sleeve 5 in the device, which is convenient for connecting to an external drive device to drive the fixed sleeve 5 to rotate, thereby driving the spindle body to rotate. When using the device, the spindle body can be inserted into the fixed sleeve 5, and then the stabilizing plate 7 is driven by the electric cylinder 6 to fix the spindle body. In order to make the device suitable for different lengths, the user can rotate the screw rod 302 to drive the reverse wire block 304 and the positive wire block 303 to move toward or opposite positions, thereby driving the two moving plates 401 to move, which is convenient for clamping spindle bodies of different lengths. When disassembling the fixed sleeve 5, the connecting nut 804 is rotated to make the connecting nut 804 is removed from the connecting bolt 803, and then the connecting bolt 803 is pulled out from the inner cavity of the first connecting plate 801 and the second connecting plate 802, so that the fixation of the first connecting plate 801 can be released, thereby facilitating the disassembly of the fixing sleeve 5, thereby facilitating the inspection and repair of the electric cylinder 6 and the stabilizing plate 7. After the main shaft body is inserted into the interior of the fixing sleeve 5, the pulley at the bottom of the contact block 904 contacts the outer side of the main shaft body under the action of the spring 903. When the main shaft body is rotating and the axis center is offset, the floating rod 902 will shake, and the user can know the changes of the main shaft body according to the changes of the floating rod 902.

[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A clamping fixture for a machine tool spindle, characterized in that: The invention comprises a base (1), a cylinder (2) is arranged on the top of the base (1), an adjusting mechanism (3) is arranged on the top of the cylinder (2), a moving mechanism (4) is arranged on the top of the adjusting mechanism (3), a fixing sleeve (5) is arranged in the inner cavity of the moving mechanism (4), an electric cylinder (6) is installed in the inner cavity of the fixing sleeve (5), a piston rod of the electric cylinder (6) is fixedly connected to a stabilizing plate (7), connecting mechanisms (8) are arranged on both sides of the moving mechanism (4), and an auxiliary mechanism (9) is arranged on one side of the moving mechanism (4).

2. The clamping fixture for a machine tool spindle according to claim 1, characterized in that: The adjustment mechanism (3) comprises a support platform (301), the inner cavity of the support platform (301) is rotatably matched with a screw rod (302), and the outer side of the screw rod (302) is threadedly connected with a positive thread block (303).

3. The clamping fixture for a machine tool spindle according to claim 1, characterized in that: The adjustment mechanism (3) also includes a reverse wire block (304), both ends of which are fixedly connected to the inner wall of the support platform (301), the outer side of the reverse wire block (304) is slidably connected to an auxiliary block (305), and the inner cavity of the auxiliary block (305) is slidably connected to an auxiliary rod (306).

4. The clamping fixture for a machine tool spindle according to claim 1, characterized in that: The moving mechanism (4) comprises a moving plate (401), the top of the moving plate (401) is fixedly connected to a lower fixing hoop (402), and an upper fixing hoop (403) is arranged above the lower fixing hoop (402).

5. The clamping fixture for a machine tool spindle according to claim 1, characterized in that: The connecting mechanism (8) comprises a first connecting plate (801) and a second connecting plate (802), one side of the first connecting plate (801) is fixedly connected to the outer side of the upper fixing hoop (403), and one side of the second connecting plate (802) is fixedly connected to the outer side of the lower fixing hoop (402), and the inner cavity of the first connecting plate (801) is provided with a connecting bolt (803), and the outer side of the connecting bolt (803) is threadedly connected with a connecting nut (804).

6. The clamping fixture for a machine tool spindle according to claim 2, characterized in that: Support blocks (12) are fixedly connected to both sides of the base (1); the top of the support block (12) is fixedly connected to a limit rod (10); the outer side of the limit rod (10) is slidably connected to a limit block (11); and one side of the limit block (11) is slidably connected to one side of the support platform (301).

7. The clamping fixture for a machine tool spindle according to claim 4, characterized in that: The auxiliary mechanism (9) comprises a mounting plate (901), wherein the mounting plate (901) is fixed to one side of the upper fixing hoop (403), the inner cavity of the mounting plate (901) is slidably connected to a floating rod (902), the bottom of the floating rod (902) is fixedly connected to a contact block (904), the bottom of the mounting plate (901) is welded to a spring (903), and one end of the spring (903) is welded to the top of the contact block (904).

Images