CN216542038U - A positioning device for CNC machine tools - Google Patents

Abstract

The utility model relates to the technical field of positioning devices, in particular to a positioning device for a CNC (computer numerical control) numerical control machine tool, which comprises two motors, wherein the top parts of the motors are fixedly connected with a machine tool, the bottom parts of the machine tool are movably connected with two rotating shafts, the outer walls of the rotating shafts are movably connected with two first connecting belts, both ends of each first connecting belt are movably connected with the corresponding rotating shaft, the bottoms of the two rotating shafts are movably connected with two first gears, the outer walls of the first gears are movably connected with two transmission mechanisms, the machine tool is connected with two transmission grooves in a penetrating manner, each transmission mechanism comprises a second gear and a second connecting belt, the bottom parts of the second gears are movably connected with first connecting rods, the outer walls of the first connecting rods are movably connected with the second connecting belts, the two second gears are driven to rotate by the rotation of the first gears, and the two second gears can move connecting blocks towards the middle when rotating, the second connecting rod and the sixth connecting rod can be used for positioning and fixing the workpiece through the movement of the connecting block.

Description

A positioning device for CNC machine tools

technical field

The utility model relates to the technical field of positioning devices, in particular to a positioning device for CNC numerical control machine tools.

Background technique

A computer numerically controlled machine tool is an automatic machine tool equipped with a program control system. The control system can logically process programs with control codes or other symbolic instructions, and decode them, so that the machine tool can move and process parts, English abbreviation CNC, also known as CNC machine tool and CNC lathe, a machine tool fixture is a device used to clamp workpieces and guide tools on a machine tool.

In the prior art, there are problems as follows:

(1) The existing CNC machine tool positioning device is complicated to operate, time-consuming and laborious, and it takes a lot of time to position workpieces of different sizes;

(2) When the existing CNC machine tool positioning device squeezes the workpiece, the positioning is unstable because the positioning device is used for a long time, so that the workpiece is loose.

Utility model content

The purpose of the present invention is to provide a positioning device for a CNC machine tool, so as to solve the problems raised in the above background technology.

The technical scheme of the utility model is as follows: a positioning device for a CNC machine tool, comprising a motor, two of which are arranged in total, a machine tool is fixedly connected to the top of the motor, a rotating shaft is movably connected to the bottom of the machine tool, and the rotating shaft There are two in total, the outer wall of the rotating shaft is movably connected with a first connecting belt, both ends of the first connecting belt are movably connected with the rotating shaft, the bottoms of the two rotating shafts are movably connected with a first gear, the The outer wall of the first gear is movably connected with a transmission mechanism. There are two transmission mechanisms in total, and a transmission groove is connected through the machine tool.

Preferably, the transmission mechanism includes a second gear and a second connecting belt, the bottom of the second gear is movably connected with a first connecting rod, the outer wall of the first connecting rod is movably connected with the second connecting belt, and the first connecting rod is movably connected with the second connecting belt. The other end of the two connecting belts is movably connected with a second connecting rod, the top of the second connecting rod is movably connected with a connecting block, both ends of the connecting block are fixedly connected with a first sliding block, and the bottom of the machine tool is fixed with a first sliding block. A sliding rail, the first sliding rail is adapted to the first sliding block of the connecting block, the top of the connecting block is fixedly connected with a positioning mechanism, and there are two positioning mechanisms in total.

Preferably, the positioning mechanism includes a third connecting rod and a first pressing plate, the third connecting rod is fixedly connected to the connecting block through the transmission groove, and the outer wall of the third connecting rod is connected to the first pressing plate The outer wall of the third connecting rod is fixedly connected with a fourth connecting rod, and the outer wall of the fourth connecting rod is fixedly connected with a tooth block.

Preferably, the bottom of the machine tool is fixedly connected with a connecting plate, there are two connecting plates in total, and the outer wall of the connecting plate is movably connected with a return spring, there are two return springs in total, and the other end of the return spring is Active connection with connection block.

Preferably, the top of the machine tool is fixedly connected with a fixed block, and there are two fixed blocks in total, and the outer wall of each of the fixed blocks is movably connected with a fifth connecting rod, and the outer wall of the fifth connecting rod is movably connected with a sliding The outer wall of the sliding shaft is movably connected with a sixth connecting rod, the outer end of the sixth connecting rod is triangular, and the tooth block is matched with the sixth connecting rod.

Preferably, a second sliding rail is fixed on the fixing block, a second sliding block is fixedly connected to the fifth connecting rod, and the second sliding rail is connected to the second sliding block of the fifth connecting rod. fit.

Preferably, a positioning plate is fixedly connected to the top of the machine tool, a third sliding rail is fixedly arranged on the positioning plate, and a second extrusion plate is movably connected to the top of the positioning plate, and the second extrusion plate is provided with a total of Two, the bottoms of the two second pressing plates are fixedly connected with third sliding blocks, and the third sliding blocks at the bottoms of the second pressing plates are adapted to the third sliding rails.

Preferably, the bottom of the machine tool is movably connected with support columns, there are six support columns in total, and a support chassis is fixedly connected to the bottom of each of the support columns.

The present utility model provides a positioning device for CNC machine tools through improvement, which has the following improvements and advantages compared with the prior art:

One: the rotation of the second gear will drive the second connecting belt to rotate, and the second connecting belt will be tightened. When the second connecting belt is tightened, the second connecting rod at the other end of the second connecting belt will be pulled. In the direction of the second gear, when the second connecting rod is pulled, it will drive the connecting block to move, and the two second gears are rotated through the first gear to move the two connecting blocks to the middle. The workpiece is positioned and fixed.

Second: the utility model will drive the third connecting rod to move when the connecting block moves to the middle. After the third connecting rod moves to the position of the positioning plate, the third connecting rod positions and fixes the workpiece, and the third connecting rod moves. When the tooth block on the fourth connecting rod hits the outer end of the sixth connecting rod, and the sliding shaft is provided, the sixth connecting rod will be flipped by the fourth connecting rod when it is knocked, and the sixth connecting rod will be flipped by flipping. The sixth connecting rod is flipped to a straight state, and the flipped sixth connecting rod will be squeezed by the fourth connecting rod. The extrusion of the fourth connecting rod will push the sixth connecting rod to move in the direction of the positioning plate, and the sixth connecting rod will move After reaching the positioning plate, the sixth connecting rod will squeeze the positioning plate, thereby positioning and fixing the workpiece.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the utility model is further explained:

1 is a schematic diagram of a first perspective view of a three-dimensional structure of the present invention;

2 is a schematic diagram of a second perspective view of the three-dimensional structure of the present invention;

Fig. 3 is the enlarged structural representation of A place of the present utility model;

FIG. 4 is a schematic view of the enlarged structure of B of the present invention.

In the figure: 1, motor; 101, machine tool; 102, rotating shaft; 103, first connecting belt; 104, first gear; 105, transmission groove; 106, connecting plate; 107, return spring; 108, fixing block; 109, Fifth connecting rod; 110, sliding shaft; 111, sixth connecting rod; 112, second sliding rail; 113, positioning plate; 114, third sliding rail; 115, second pressing plate; 116, supporting column; 117 2, the transmission mechanism; 201, the second gear; 202, the second connecting belt; 203, the first connecting rod; 204, the second connecting rod; 205, the connecting block; 206, the first sliding rail; 3, 301, the third connecting rod; 302, the first pressing plate; 303, the fourth connecting rod; 304, the tooth block.

Detailed ways

The present invention will be described in detail below, and the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The present utility model provides a positioning device for CNC numerical control machine tools through improvement, and the technical scheme of the present utility model is:

As shown in Figures 1-4, a positioning device for CNC machine tools includes a motor 1. There are two motors 1. A machine tool 101 is fixedly connected to the top of the motor 1, and a rotating shaft 102 is movably connected to the bottom of the machine tool 101. The rotating shaft 102 There are two in total, the outer wall of the rotating shaft 102 is movably connected with a first connecting belt 103, both ends of the first connecting belt 103 are movably connected with the rotating shaft 102, and the bottoms of the two rotating shafts 102 are movably connected with a first gear 104, the first gear 104 The outer wall is movably connected with a transmission mechanism 2. There are two transmission mechanisms 2 in total. A transmission groove 105 is connected through the machine tool 101. The workpiece is positioned and fixed by the pressing of the second pressing plate 115 , and when the first pressing plate 302 presses the workpiece, the sixth connecting rod 111 is pressed by the fourth connecting rod 303 , and the pressing of the fourth connecting rod 303 makes The sixth connecting rod 111 squeezes the second pressing plate 115, and by pressing the second pressing plate 115, the second pressing plate 115 can be more stable when pressing the workpiece, and the positioning and fixing effect is improved.

Further, the transmission mechanism 2 includes a second gear 201 and a second connecting belt 202, the bottom of the second gear 201 is movably connected with a first connecting rod 203, the outer wall of the first connecting rod 203 is movably connected with the second connecting belt 202, the second The other end of the connecting belt 202 is movably connected with a second connecting rod 204, the top of the second connecting rod 204 is movably connected with a connecting block 205, both ends of the connecting block 205 are fixedly connected with a first sliding block, and the bottom of the machine tool 101 is fixedly provided with a first sliding block. Rail 206, the first slide rail 206 is adapted to the first slider of the connecting block 205, the top of the connecting block 205 is fixedly connected with the positioning mechanism 3, and there are two positioning mechanisms 3, in this setting: through the second gear 201 The rotation will drive the second connecting belt 202 to rotate, and tighten the second connecting belt 202. When the second connecting belt 202 is tightened, the second connecting rod 204 at the other end of the second connecting belt 202 will be pulled toward the second gear 201 When the second connecting rod 204 is pulled, it will drive the connecting block 205 to move, and the two second gears 201 are rotated through the first gear 104 to move the two connecting blocks 205 to the middle. The workpiece can be positioned and fixed to improve work efficiency.

Further, the positioning mechanism 3 includes a third connecting rod 301 and a first pressing plate 302 , the third connecting rod 301 is fixedly connected to the connecting block 205 through the transmission groove 105 , and the outer wall of the third connecting rod 301 is connected to the first pressing plate 302 Fixed connection, the outer wall of the third connecting rod 301 is fixedly connected with a fourth connecting rod 303, and the outer wall of the fourth connecting rod 303 is fixedly connected with a tooth block 304, in this setting: when the connecting block 205 moves to the middle, it will drive the third connecting rod 301 moves, after the third connecting rod 301 moves to the position of the positioning plate 113, the third connecting rod 301 positions and fixes the workpiece, and when the third connecting rod 301 moves, the tooth block 304 on the fourth connecting rod 303 will bump into The outer end of the sixth connecting rod 111 is provided with a sliding shaft 110, so that when the sixth connecting rod 111 is knocked, it will be flipped by the fourth connecting rod 303, and the sixth connecting rod 111 will be flipped to a straight state by flipping, The flipped sixth connecting rod 111 will be squeezed by the fourth connecting rod 303, and the pressing of the fourth connecting rod 303 will push the sixth connecting rod 111 to move in the direction of the positioning plate 113, and the sixth connecting rod 111 will move to the positioning After the plate 113 is next to the plate 113, the sixth connecting rod 111 will squeeze the positioning plate 113, thereby positioning and fixing the workpiece.

Further, the bottom of the machine tool 101 is fixedly connected with a connecting plate 106. There are two connecting plates 106. The outer wall of the connecting plate 106 is movably connected with a return spring 107. There are two return springs 107. The other end of the return spring 107 is connected to the connecting block. 205 Active connection, in this setting: After the work of positioning and fixing the workpiece is completed, the pull connection block 205 is returned to the original position by the spring tension characteristics of the reset spring 107, and the staff does not need to reset it manually, saving manpower.

Further, a fixed block 108 is fixedly connected to the top of the machine tool 101, and there are two fixed blocks 108. The outer wall of each fixed block 108 is movably connected with a fifth connecting rod 109, and the outer wall of the fifth connecting rod 109 is movably connected with a sliding shaft 110. , the outer wall of the sliding shaft 110 is movably connected with a sixth connecting rod 111, the outer end of the sixth connecting rod 111 is triangular, and the tooth block 304 is matched with the sixth connecting rod 111. In this setting: the sliding shaft 110 is used to make the sixth connection The rod 111 can be turned over by 90°, and after the sixth connecting rod 111 is turned to a straight state, it is convenient to squeeze the second pressing plate 115, which improves the positioning and fixing effect.

Further, a second sliding rail 112 is fixed on the fixing block 108 , a second sliding block is fixedly connected on the fifth connecting rod 109 , and the second sliding rail 112 is matched with the second sliding block of the fifth connecting rod 109 . , In this setting: the fifth connecting rod 109 can move on the fixing block 108 by being provided with the second sliding rail 112 , and when the fifth connecting rod 109 moves, it will drive the sixth connecting rod 111 to move.

Further, a positioning plate 113 is fixedly connected to the top of the machine tool 101, a third sliding rail 114 is fixed on the positioning plate 113, and a second pressing plate 115 is movably connected to the top of the positioning plate 113. The second pressing plate 115 is provided with two A third sliding block is fixedly connected to the bottom of the two second pressing plates 115, and the third sliding block at the bottom of the second pressing plate 115 is adapted to the third sliding rail 114. The three sliding rails 114 enable the second pressing plate 115 to move on the positioning plate 113 , so as to facilitate the positioning and fixing of the workpiece by the second pressing plate 115 .

Further, the bottom of the machine tool 101 is movably connected with support columns 116, there are six support columns 116 in total, and a support chassis 117 is fixedly connected to the bottom of each support column 116. In this setting, by providing the support columns 116 and the support chassis 117, The bearing capacity of the device is improved.

Working principle: after the workpiece is placed on the positioning plate 113, the motor 1 is started to rotate the shaft 102, the rotation of the shaft 102 drives the rotation of the first gear 104, the rotation of the first gear 104 drives the rotation of the second gear 201, and the rotation of the second gear 201 drives the rotation of the first gear 104. The rotation will drive the second connecting belt 202 to rotate, and tighten the second connecting belt 202. When the second connecting belt 202 is tightened, the second connecting rod 204 at the other end of the second connecting belt 202 will be pulled toward the second gear 201 When the second connecting rod 204 is pulled, it will drive the connecting block 205 to move, and the two second gears 201 are rotated through the first gear 104 to move the two connecting blocks 205 to the middle, and when the connecting block 205 moves to the middle, It will drive the third connecting rod 301 to move. After the third connecting rod 301 moves to the position of the positioning plate 113, the third connecting rod 301 positions and fixes the workpiece, and when the third connecting rod 301 moves, the The tooth block 304 will knock against the outer end of the sixth connecting rod 111, and the sliding shaft 110 is provided, so that when the sixth connecting rod 111 is knocked, it will be flipped by the fourth connecting rod 303, and the sixth connecting rod 111 will be flipped by flipping. 111 is flipped to a straight state, the flipped sixth connecting rod 111 will be squeezed by the fourth connecting rod 303, and the sixth connecting rod 111 will be pushed to move in the direction of the positioning plate 113 by the squeezing of the fourth connecting rod 303. After the connecting rod 111 moves to the side of the positioning plate 113 , the sixth connecting rod 111 will press the positioning plate 113 to position and fix the workpiece.

The above description enables those skilled in the art to realize or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. A positioning device for a CNC machine tool, characterized in that it comprises a motor (1), the motor (1) is provided with two in total, and a machine tool (101) is fixedly connected to the top of the motor (1), and the motor (1) is A rotating shaft (102) is movably connected to the bottom of the machine tool (101), two rotating shafts (102) are arranged in total, and a first connecting belt (103) is movably connected to the outer wall of the rotating shaft (102). 103) Both ends are movably connected with the rotating shaft (102), the bottoms of the two rotating shafts (102) are movably connected with a first gear (104), and the outer wall of the first gear (104) is movably connected with a transmission mechanism ( 2), there are two transmission mechanisms (2) in total, and a transmission groove (105) is connected through the machine tool (101). 2 . The positioning device for a CNC machine tool according to claim 1 , wherein the transmission mechanism ( 2 ) comprises a second gear ( 201 ) and a second connecting belt ( 202 ). A first connecting rod (203) is movably connected at the bottom of the gear (201), the outer wall of the first connecting rod (203) is movably connected with a second connecting belt (202), and the other end of the second connecting belt (202) is movably connected There is a second connecting rod (204), the top of the second connecting rod (204) is movably connected with a connecting block (205), and both ends of the connecting block (205) are fixedly connected with a first sliding block, and the machine tool ( 101) A first sliding rail (206) is fixedly arranged at the bottom, the first sliding rail (206) is adapted to the first sliding block of the connecting block (205), and the top of the connecting block (205) is fixedly connected There are positioning mechanisms (3), and there are two positioning mechanisms (3). 3. A positioning device for a CNC machine tool according to claim 2, wherein the positioning mechanism (3) comprises a third connecting rod (301) and a first pressing plate (302), the The third connecting rod (301) is fixedly connected to the connecting block (205) through the transmission groove (105), the outer wall of the third connecting rod (301) is fixedly connected to the first pressing plate (302), and the third connecting rod (301) is fixedly connected to the first pressing plate (302). A fourth connecting rod (303) is fixedly connected to the outer wall of the connecting rod (301), and a tooth block (304) is fixedly connected to the outer wall of the fourth connecting rod (303). 4. The positioning device for a CNC machine tool according to claim 1, wherein the bottom of the machine tool (101) is fixedly connected with a connecting plate (106), and the connecting plate (106) is provided with two , the outer wall of the connecting plate (106) is movably connected with a return spring (107), there are two return springs (107), and the other end of the return spring (107) is movably connected with the connecting block (205). 5. A positioning device for a CNC machine tool according to claim 3, characterized in that: the top of the machine tool (101) is fixedly connected with a fixed block (108), and the fixed block (108) is provided with two , the outer wall of each fixed block (108) is movably connected with a fifth connecting rod (109), the outer wall of the fifth connecting rod (109) is movably connected with a sliding shaft (110), and the outer wall of the sliding shaft (110) A sixth connecting rod (111) is movably connected, the outer end of the sixth connecting rod (111) is triangular, and the tooth block (304) is matched with the sixth connecting rod (111). 6. A positioning device for a CNC machine tool according to claim 5, characterized in that: a second slide rail (112) is fixed on the fixing block (108), and the fifth connecting rod (109) A second sliding block is fixedly connected to the top, and the second sliding rail (112) is matched with the second sliding block of the fifth connecting rod (109). 7 . The positioning device for a CNC machine tool according to claim 1 , wherein a positioning plate ( 113 ) is fixedly connected to the top of the machine tool ( 101 ), and a first positioning plate ( 113 ) is fixed on the positioning plate ( 113 ). Three sliding rails (114), the top of the positioning plate (113) is movably connected with a second pressing plate (115), and there are two second pressing plates (115), two of the second pressing plates (115). A third sliding block is fixedly connected to the bottom of the pressing plate (115), and the third sliding block at the bottom of the second pressing plate (115) is adapted to the third sliding rail (114). 8 . The positioning device for a CNC machine tool according to claim 1 , wherein the bottom of the machine tool ( 101 ) is movably connected with a support column ( 116 ), and the support column ( 116 ) is provided with a total of six , a supporting chassis (117) is fixedly connected to the bottom of each of the supporting columns (116).

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