CN223933108U - High-precision positioning clamp of numerical control machine tool - Google Patents

Abstract

The utility model discloses a high-precision positioning fixture of a numerical control machine tool, which relates to the technical field of machine tool fixtures and comprises a support frame, wherein a clamping mechanism is fixedly arranged on the top surface of the support frame, a feeding mechanism is arranged on one side of the support frame, the clamping mechanism comprises a fixed plate, a first servo motor and a fixed frame, the fixed plate is fixedly connected to the top surface of the support frame, the first servo motor is arranged on the outer wall of the fixed plate, two ends of the fixed frame are rotatably connected with clamping jaws, and the first servo motor is in transmission connection with the clamping jaws.

Description

High-precision positioning clamp of numerical control machine tool

Technical Field

The utility model relates to the technical field of machine tool fixtures, in particular to a high-precision positioning fixture of a numerical control machine tool.

Background

Along with the rapid development of manufacturing industry, the higher and higher requirements are put forward on the machining precision and efficiency of the numerical control machine tool, and in the machining process of the numerical control machine tool, the clamp is used as a key component for connecting the machine tool and a workpiece, and the performance quality of the clamp directly influences the machining precision, the surface quality and the production efficiency of the workpiece.

At present, in the processing of pipe fittings, the position of the pipe fittings cannot be accurately determined by the existing numerical control clamp, so that the pipe fittings are subjected to position deviation in the processing process, the feeding position of the pipe fittings is difficult to accurately control, the pipe fittings are subjected to position deviation in the subsequent processing, and the processing precision and quality are affected.

Disclosure of utility model

The utility model aims to solve the problems that the position of a pipe fitting cannot be accurately determined in the processing of the pipe fitting, so that the position deviation of the pipe fitting occurs in the processing process, the feeding position of the pipe fitting is difficult to accurately control, the position deviation of the pipe fitting occurs in the subsequent processing, and the processing precision and quality are affected.

In order to achieve the purpose, the high-precision positioning clamp of the numerical control machine tool comprises a support frame, wherein a clamping mechanism is fixedly arranged on the top surface of the support frame, a feeding mechanism is arranged on one side of the support frame, the clamping mechanism comprises a fixed plate, a first servo motor and a fixed frame, the fixed plate is fixedly connected to the top surface of the support frame, the first servo motor is arranged on the outer wall of the fixed plate, clamping jaws are rotatably connected to the two ends of the fixed frame, the first servo motor is in transmission connection with the clamping jaws, the first servo motor is used for controlling the rotation between the end parts of the two clamping jaws to achieve clamping operation, the feeding mechanism comprises a lifting plate, a transmission shaft, a connecting seat, a material placing plate and a cylinder, the transmission shaft is rotatably arranged on the outer wall of the lifting plate, the cylinder is fixedly arranged on the outer wall of the lifting plate, the bottom end of the connecting seat is fixedly connected with the top end of the transmission shaft, one end of a telescopic rod of the cylinder is in transmission connection with the transmission shaft, and the cylinder is used for controlling the rotation of the transmission shaft to achieve deflection control of the material placing plate.

Preferably, the feeding mechanism further comprises a bottom plate, a second servo motor is arranged outside the bottom plate, a second screw rod is fixedly connected to the output shaft end of the second servo motor, a threaded sleeve block is sleeved on the outer wall of the second screw rod in a threaded manner, and the threaded sleeve block is fixedly connected with the outer wall of the lifting plate.

Preferably, the lifting plate is movably connected with the bottom plate through a sliding block and a sliding rail.

Preferably, the outer wall of the lifting plate is provided with a sliding groove, the inner wall of the sliding groove is movably connected with a toothed plate, and the outer wall of the toothed plate is connected with a gear in a meshed manner.

Preferably, the gear is fixedly sleeved on the outer wall of the transmission shaft, and one end of the telescopic rod of the air cylinder is fixedly connected with the outer wall of the gear.

Preferably, the inner wall fixedly connected with backup pad of mount, the outer wall fixed mounting of mount has the backing plate, and the tip of backup pad rotates and is connected with lead screw one, and the connecting block has all been cup jointed to the equal screw thread in the both ends outer wall of lead screw one, and the connecting block rotates with clamping jaw one end to be connected.

Preferably, one end of the first screw rod is fixedly connected with the output shaft end of the fixed plate.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. According to the utility model, the pipe fitting is fixed on the material placing plate, the transmission shaft is controlled to rotate by pushing through the control cylinder, the material placing plate is controlled to finish 180-degree horizontal deflection, the pipe fitting is accurately transferred to the front of the fixing frame, and the clamping jaw on two sides of the fixing frame is controlled to synchronously deflect by matching with the servo motor to carry out center clamping and fixing, so that the accurate transfer and center positioning clamping of the pipe fitting are realized, and the processing precision of the subsequent pipe fitting is further improved.

2. According to the utility model, the servo motor II is arranged on the bottom plate, so that when the pipe fitting is transferred, the servo motor II drives the screw rod II to rotate so as to drive the threaded sleeve block to drive the lifting plate to lift and move, thereby facilitating a user to control the transfer height of the pipe fitting on the material placing plate and further improving the clamping accuracy of the pipe fitting.

Drawings

Fig. 1 is a schematic perspective view of a high-precision positioning fixture for a numerical control machine tool according to the present utility model;

fig. 2 is an enlarged view of a structure of a high-precision positioning fixture of the numerical control machine tool shown in fig. 1;

Fig. 3 is a schematic diagram showing the internal structure of a high-precision positioning fixture fixing frame of a numerical control machine tool;

Fig. 4 is a schematic diagram of a connection structure between a lifting plate and a bottom plate of a high-precision positioning fixture of a numerical control machine tool.

The legend is 1, a support frame, 2, a clamping mechanism, 21, a fixed plate, 22, a first servo motor, 23, a fixed frame, 24, a clamping jaw, 25, a support plate, 26, a first screw rod, 27, a connecting block, 28, a base plate, 3, a feeding mechanism, 31, a lifting plate, 311, a sliding groove, 312, a toothed plate, 313, a gear, 32, a transmission shaft, 33, a connecting seat, 34, a material placing plate, 35, an air cylinder, 36, a bottom plate, 361, a second servo motor, 362, a second screw rod, 363 and a screw sleeve block.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

1-4, The utility model provides a high-precision positioning clamp of a numerical control machine tool, which comprises a support frame 1, wherein a clamping mechanism 2 is fixedly arranged on the top surface of the support frame 1, a feeding mechanism 3 is arranged on one side of the support frame 1, the clamping mechanism 2 comprises a fixed plate 21, a first servo motor 22 and a fixed frame 23, the fixed plate 21 is fixedly connected to the top surface of the support frame 1, the first servo motor 22 is arranged on the outer wall of the fixed plate 21, clamping jaws 24 are rotatably connected to two ends of the fixed frame 23, the first servo motor 22 is in transmission connection with the clamping jaws 24, the first servo motor 22 is used for controlling the ends of the two clamping jaws 24 to rotate to realize clamping operation, the feeding mechanism 3 comprises a lifting plate 31, a transmission shaft 32, a connecting seat 33, a material placing plate 34 and a cylinder 35, the transmission shaft 32 is rotatably arranged on the outer wall of the lifting plate 31, the bottom end of the connecting seat 33 is fixedly connected with the top end of the transmission shaft 32, the center of the bottom surface of the material placing plate 34 is fixedly connected with the top end of the connecting seat 33, one end of a telescopic rod of the cylinder 35 is in transmission connection with the transmission shaft 32, and the cylinder 35 is used for controlling the rotation of the transmission shaft 32 to realize deflection control of the material placing plate 34.

The following details the specific setting and action of this embodiment, through placing the pipe fitting on the material placing plate 34 for fixing, control the transmission shaft 32 to rotate and then control the material placing plate 34 to accomplish 180 horizontal deflection through the control cylinder 35, accurately transfer the pipe fitting to the mount 23 the place ahead, cooperate servo motor one 22 to control the clamping jaw 24 of mount 23 both sides to deflect in step and carry out the center and press from both sides tightly fixedly to realize accurate transfer and the center location centre gripping of pipe fitting, and then improve the machining precision of follow-up pipe fitting.

1-4, The feeding mechanism 3 further comprises a bottom plate 36, a second servo motor 361 is mounted outside the bottom plate 36, a second screw rod 362 is fixedly connected to an output shaft end of the second servo motor 361, a first screw rod 26 is rotatably connected to an end portion of the second screw rod 362, a connecting block 27 is rotatably connected to outer walls of the first screw rod 26 in a threaded sleeve manner, one end of the connecting block 27 is rotatably connected to one end of the second screw rod 24, one end of the first screw rod 26 is fixedly connected to an output shaft end of the fixed plate 21, a gear 313 is meshed with an outer wall of the gear 312, the gear 313 is fixedly connected to an outer wall of the transmission shaft 32, one end of a telescopic rod of the cylinder 35 is fixedly connected to an outer wall of the gear 313, a supporting plate 25 is fixedly connected to an inner wall of the fixed plate 23, a base plate 28 is rotatably connected to an end portion of the first screw rod 26, connecting blocks 27 are rotatably connected to outer walls of the two ends of the first screw rod 26 in a threaded sleeve manner, one end of the connecting block 27 is rotatably connected to one end of the second screw rod 24, and one end of the clamping jaw 21 is fixedly connected to an output shaft end of the fixed plate 21.

The whole embodiment of the device achieves the effects that through the arrangement of the second servo motor 361 on the bottom plate 36, when the device is used for transferring pipe fittings, the second servo motor 361 drives the second screw 362 to rotate so as to drive the threaded sleeve 363 to drive the lifting plate 31 to lift and move, so that a user can control the pipe fitting transferring height on the material placing plate 34, the pipe fitting clamping accuracy is further improved, the first screw 26 is driven by the fixing plate 21 to rotate so as to achieve synchronous approaching or separating of the connecting block 27, synchronous clamping of the two clamping jaws 24 is achieved, and the central positioning clamping is achieved by matching with the base plate 28.

When the device is used, a user places a pipe on the material placing plate 34 for fixing, the toothed plate 312 is pushed to move by the control cylinder 35, the gear 313 drives the transmission shaft 32 to drive so as to control the material placing plate 34 to finish 180-degree horizontal deflection, the pipe is accurately transferred to the front of the fixed frame 23, the clamping jaw 24 on two sides of the fixed frame 23 is controlled to synchronously deflect by the aid of the first servo motor 22 for central clamping and fixing, and when the pipe is transferred, the second servo motor 361 is arranged on the bottom plate 36, the second servo motor 361 drives the screw rod 362 to rotate so as to drive the threaded sleeve block 363 to drive the lifting plate 31 to lift, so that the user can conveniently control the height of transferring the pipe on the material placing plate 34.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (7)

1. A high-precision positioning clamp of a numerical control machine tool comprises a support frame (1) and is characterized in that a clamping mechanism (2) is fixedly arranged on the top surface of the support frame (1), a feeding mechanism (3) is arranged on one side of the support frame (1), the clamping mechanism (2) comprises a fixed plate (21), a first servo motor (22) and a fixed frame (23), the fixed plate (21) is fixedly connected to the top surface of the support frame (1), the first servo motor (22) is arranged on the outer wall of the fixed plate (21), clamping jaws (24) are respectively and rotatably connected to two ends of the fixed frame (23), the first servo motor (22) is in transmission connection with the clamping jaws (24), the first servo motor (22) is used for controlling the rotation between the end parts of the two clamping jaws (24) to realize clamping operation, the feeding mechanism (3) comprises a lifting plate (31), a transmission shaft (32), a connecting seat (33), a material placing plate (34) and an air cylinder (35), the transmission shaft (32) is rotatably arranged on the outer wall of the lifting plate (31), the air cylinder (35) is fixedly arranged on the outer wall of the lifting plate (31), the bottom end of the connecting seat (33) is fixedly connected to the top end of the transmission shaft (32) and fixedly connected to one end of the transmission seat (33), the air cylinder (35) is used for controlling the rotation of the transmission shaft (32) to realize deflection control of the material placing plate (34).

2. The high-precision positioning fixture of the numerical control machine tool according to claim 1, wherein the feeding mechanism (3) further comprises a bottom plate (36), a second servo motor (361) is arranged outside the bottom plate (36), a second screw rod (362) is fixedly connected to an output shaft end of the second servo motor (361), a threaded sleeve block (363) is sleeved on the outer wall of the second screw rod (362) in a threaded mode, and the threaded sleeve block (363) is fixedly connected with the outer wall of the lifting plate (31).

3. The high-precision positioning fixture of the numerical control machine tool according to claim 2, wherein the lifting plate (31) is movably connected with the bottom plate (36) through a sliding block and a sliding rail.

4. The high-precision positioning fixture of the numerical control machine tool according to claim 3, wherein the outer wall of the lifting plate (31) is provided with a sliding groove (311), the inner wall of the sliding groove (311) is movably connected with a toothed plate (312), and the outer wall of the toothed plate (312) is connected with a gear (313) in a meshed manner.

5. The high-precision positioning fixture of a numerical control machine tool as set forth in claim 4, wherein the gear (313) is fixedly sleeved on the outer wall of the transmission shaft (32), and one end of a telescopic rod of the air cylinder (35) is fixedly connected with the outer wall of the gear (313).

6. The high-precision positioning fixture of the numerical control machine tool according to claim 1, wherein the inner wall of the fixing frame (23) is fixedly connected with a supporting plate (25), the outer wall of the fixing frame (23) is fixedly provided with a base plate (28), the end part of the supporting plate (25) is rotatably connected with a first screw rod (26), the outer walls of the two ends of the first screw rod (26) are respectively sheathed with a connecting block (27) in a threaded manner, and the connecting blocks (27) are rotatably connected with one end of the clamping jaw (24).

7. The high-precision positioning fixture of a numerical control machine tool as set forth in claim 6, wherein one end of the first screw rod (26) is fixedly connected with the output shaft end of the fixed plate (21).