Numerical control machine tool workbench with positioning function

Abstract

The utility model discloses a numerical control machine tool workbench with a positioning function, and belongs to the technical field of numerical control machine tools. Comprising a workbench, a sliding frame, a clamping structure, a positioning control part, a positioning point signal source and a signal source collector, the sliding frame is arranged on the workbench in a sliding mode. A clamping structure is arranged on the sliding frame in a sliding manner; the positioning point signal source is in communication connection with the positioning control part, and the positioning control part is used for controlling the positioning point signal source to send out a signal; a signal source collector is arranged in the center of the bottom of the clamping structure and is in communication connection with the positioning control part; the signal source collector is used for collecting signals sent by the positioning point signal source and feeding the signals into the positioning control part. The utility model solves the problems that although a to-be-processed part clamping structure can be moved on the existing numerical control machine tool workbench, the to-be-processed part can be positioned and adjusted; however, deviation exists in positioning without any judgment standard, and the problem of defective quality of part machining may be caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machine tools, and in particular relates to a numerical control machine tool workbench with a positioning function. Background Art

[0002] CNC machine tools are the main equipment in modern industrial production. They play an irreplaceable role in processing complex, large and high-precision parts. CNC machine tools control the operation of tools through the CNC system to cut and grind the parts to be processed on the workbench. Finally, a standard part workpiece is obtained. The parts to be processed are placed on the workbench, and the processing tools are set above the workbench. The parts to be processed are clamped and fixed on the surface of the workbench by a clamping structure, and the clamping structure can be moved on the workbench to adjust the position of the clamping structure and the parts to be processed. Usually, the position of the tool above the workbench can also be adjusted. Generally, after the tool position is calibrated and adjusted, the clamping structure and the position of the parts to be processed are adjusted on the workbench with reference to the position of the tool. The parts to be processed need to be located directly below the tool so that the tool can accurately cut or grind the parts to be processed.

[0003] A sliding structure is usually set on the workbench of existing machine tools to provide a sliding clamping structure for the part to be processed. The position of the part to be processed can be positioned and adjusted by sliding the clamping structure on the workbench surface; however, the sliding and positioning of the clamping structure are manually determined by referring to the position of the tool. After manually adjusting the clamping structure, it is manually determined that the tool can be roughly fixed within the normal cutting position range; such positioning has no accurate judgment basis and is carried out by manual observation; inaccurate positioning and deviation may occur; for some more precise parts, the processing quality of the parts may not meet the standards after processing, resulting in scrap. Utility Model Content

[0004] The utility model provides a CNC machine tool workbench with a positioning function, on which the orthographic projection positioning coordinates of the tool can be determined first according to the position of the tool; after the positioning coordinates of the tool are determined, the coordinate point can send out a signal source; the coordinate point is also the coordinate where the clamping structure and the material of the part to be processed need to be positioned; the clamping structure is moved on the XY coordinates of the workbench surface, and when the acquisition sensor on the clamping structure happens to receive the signal source of the target coordinate point, the positioning system sends out a prompt; at this time, the position of the clamping structure reaches the target coordinate, and accurate positioning is achieved; the utility model solves the problem that although the clamping structure of the part to be processed can be moved on the current CNC machine tool workbench to achieve positioning adjustment of the part to be processed; but there is a deviation in the positioning without any judgment standard, which may cause the quality of the part processing to be defective.

[0005] In order to achieve the above technical objectives, the utility model is implemented through the following technical solutions:

[0006] A CNC machine tool workbench with a positioning function, comprising: a workbench, a slide frame, a clamping structure, a positioning control unit, a positioning point signal source, and a signal source collector;

[0007] The upper surface of the workbench is set as a workbench plane;

[0008] The slide frame is slidably arranged on the workbench;

[0009] A clamping structure is slidably arranged on the slide frame; the sliding direction of the clamping structure is perpendicular to the sliding direction of the slide frame; the clamping structure is used to clamp and fix the parts to be processed;

[0010] The workbench plane is provided with crisscrossing longitude and latitude lines in equal intervals, and a fixed-position signal source is provided at each intersection of the longitude and latitude lines;

[0011] Each intersection is a positioning point coordinate, and the positioning point coordinate value data information is pre-stored in the positioning control unit;

[0012] The positioning point signal source is communicatively connected to the positioning control unit, and the positioning control unit is used to control the positioning point signal source to send a signal;

[0013] A signal source collector is arranged at the center of the bottom of the clamping structure, and the signal source collector is communicatively connected to the positioning control unit;

[0014] The signal source collector is used to collect the signal sent by the positioning point signal source and feed it into the positioning control unit.

[0015] Preferably, the positioning control unit is integrated with a microprocessor, and the microprocessor is communicatively connected to a positioning point signal source and a signal source collector.

[0016] Preferably, the positioning point signal source is set as an infrared diode;

[0017] The signal source collector is configured as an infrared receiving sensor.

[0018] Preferably, the upper edge of the workbench is higher than the plane of the workbench;

[0019] A sliding rod is arranged on each side of the two opposite edges;

[0020] Through slots are provided at both ends of the slide frame, and the slide rod passes through the through slots on the slide frame, so that the slide frame is slidably arranged on the workbench.

[0021] Preferably, a long strip-shaped through slot is provided on the edge of the workbench beside the sliding rod;

[0022] A through-and-through clamping block is disposed at each end of the slide frame; the through-and-through clamping block is composed of two upper and lower plates; the lower plate is inserted into the through-and-through slot, and the upper plate is located on the through-and-through slot;

[0023] A bolt is passed through the end of the interlaced clamping block, and nuts are arranged at both ends of the bolt.

[0024] Preferably, the middle part of the slide frame is configured as a through hollow structure, and a slide rail is disposed in the hollow structure;

[0025] The clamping structure is slidably arranged on the slide rail.

[0026] Preferably, the clamping structure comprises: a moving seat, a side block, a push rod, a push plate, a clamping block, and a screw;

[0027] A slideway is provided in the movable seat, the slide rail passes through the slideway, and the movable seat can slide relative to the slide rail;

[0028] A side stopper is vertically arranged on the edges of the two opposite sides above the movable seat;

[0029] The side block passes through a push rod, and the push rod is movable relative to the side block;

[0030] A push plate is provided at one end of the push rod located outside the side block, and a clamping block is provided at one end of the push rod located inside the side block;

[0031] A screw rod is arranged on the outer side of the side stopper; the screw rod passes through a push plate, and the push plate is movable relative to the screw rod; a nut is arranged on the screw rod.

[0032] Preferably, an elastic member is arranged between the push plate and the side stop block, and the elastic member is arranged outside the push rod; two ends of the elastic member are respectively fixed to the push plate and the side stop block surface.

[0033] Preferably, a side wing is horizontally arranged on each of the two opposite sides of the movable seat where the side block is not arranged, and a bolt barrel is arranged on the side wing, and the bolt barrel passes through the surface of the side wing;

[0034] Bolts are arranged in the bolt barrel.

[0035] Preferably, the positioning point signal source is arranged on a workbench plane; a transparent plate is arranged above the workbench plane and the positioning point signal source; and the transparent plate covers the positioning point signal source and the workbench plane.

[0036] The beneficial effects of the utility model are:

[0037] The utility model provides a CNC machine tool workbench with a positioning function, wherein a plurality of positioning coordinate points are formed at equal intervals on the workbench surface, and an infrared diode is correspondingly arranged at each coordinate point; an infrared receiving sensor is arranged at the bottom center position of a moving seat of a clamping structure; after determining the coordinate point of a tool on the workbench plane according to its position, a microprocessor controls the corresponding infrared diode to emit infrared light, and then starts to move a slide frame and a moving seat near the light-emitting diode to start positioning adjustment, and when the infrared receiving sensor is just aligned with the light-emitting diode, it indicates that the clamping structure is accurately positioned, and at this time the microprocessor controls the loudspeaker to give a prompt sound; through the role of the positioning signal source and the signal acquisition sensor, accurate positioning prompts can be given during the positioning process, thereby avoiding large errors in the positioning of the clamping structure, which may affect the quality defects of the parts to be processed after clamping and processing.

[0038] The utility model arranges an infrared diode on the plane of the workbench, and arranges a transparent plate above the infrared diode and the plane of the workbench; the transparent plate does not affect the penetration of the infrared light source, and at the same time can protect the infrared diode to avoid being affected by cooling spray and debris generated by cutting during the parts processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0041] Figure 2 This is a schematic diagram of the sliding frame and the clamping structure of the utility model;

[0042] Figure 3 It is a schematic diagram of the structure of the sliding frame of the utility model;

[0043] Figure 4 It is a schematic diagram of the clamping structure of the utility model;

[0044] Figure 5 This is a schematic diagram of the installation structure of the infrared receiving sensor of the utility model;

[0045] Figure 6 This is a schematic diagram of the infrared diode installation structure of the utility model;

[0046] Figure 7 This is a schematic diagram of the transparent plate installation structure of the utility model;

[0047] In the accompanying drawings, the structural names represented by the reference numerals are:

[0048] 1-workbench, 101-through slot, 2-workbench plane, 201-positioning coordinate line, 202-transparent plate, 3-slide rod, 4-slide frame, 401-slide rail, 402-interspersed clamping block, 5-moving seat, 501-slideway, 502-side wing, 503-bolt cylinder, 504-bolt, 505-side block, 506-push rod, 507-clamping block, 508-push plate, 509-elastic part, 5010-screw, 6-infrared diode, 7-infrared receiving sensor. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] Example 1

[0051] A CNC machine tool workbench with a positioning function, comprising: a workbench 1, a slide frame 4, a clamping structure, a positioning control unit, a positioning point signal source, and a signal source collector;

[0052] like Figure 1 As shown, the upper surface of the workbench 1 is set as the workbench plane 2; the edges of the four sides of the workbench 1 are higher than the workbench plane 2; Figure 1 In the embodiment, a slide frame 4 is slidably arranged on the inner side surfaces of the front and rear opposite edges of the workbench 1, and the slide frame 4 as a whole can freely slide in the horizontal direction relative to the workbench 1;

[0053] The sliding structure of the slide frame 4 in this embodiment is configured as follows: a slide groove is provided on the inner side of the front and rear opposite edges of the workbench 1, and slider structures that can be embedded in the slide groove are provided at both ends of the slide frame 4; the slider is movably arranged in the slide groove, so that the slide frame 4 as a whole can slide freely relative to the workbench 1;

[0054] like Figure 2 As shown, a clamping structure for clamping and fixing the workpiece to be processed is slidably arranged on the slide frame 4; the sliding direction of the clamping structure is perpendicular to the sliding direction of the slide frame 4; Figure 3As shown, the middle part of the slide frame 4 is set as a through hollow structure, and a slide rail 401 is set in the hollow structure. The slide rail 401 here is set as a slide rail 401 with a square cross-section; the entire clamping structure is slidably set on the slide rail 401, and moves and slides with the slide rail 401 as a track; and the lower half of the clamping structure is located in the hollow structure of the slide frame 4, and can also slide freely in the hollow structure;

[0055] The above-mentioned clamping structure includes: a moving seat 5, a side block 505, a push rod 506, a push plate 508, a clamping block 507, and a screw 5010;

[0056] Inside the moving seat 5, a slideway 501 is provided along the direction of the slide rail 401, and the lower half of the moving seat 5 of the clamping structure is provided in the hollow structure of the slide frame 4. At this time, the slide rail 401 passes through the slideway 501 in the moving seat 5, and the moving seat 5 can slide relative to the slide rail 401;

[0057] like Figure 4 As shown, a side stopper 505 is vertically arranged on the edges of the upper front and rear sides of the movable seat 5; two push rods 506 pass through the side stopper 505, and the two push rods 506 and the side stopper 505 have no fixed connection structure, and the two push rods 506 are in a movable state relative to the side stopper 505;

[0058] One end of the two push rods 506 on the same side located outside the side block 505 is connected to the same push plate 508. The movement of the push plate 508 can keep the two push rods 506 moving synchronously; one end of the two push rods 506 located inside the side block 505 is connected to the same clamping block 507; the push plate 508 drives the two push rods 506 to move, and the two push rods 506 can drive the clamping block 507 to move; the push rods 506 on both sides move toward each other, so that the workpiece to be processed placed between the clamping blocks 507 can be clamped and fixed;

[0059] The outer side surface of the side block 505 is fixedly connected to one end of the screw rod 5010; the other end of the screw rod 5010 passes through the push plate 508, and there is no fixed connection structure between the screw rod 5010 and the push plate 508, so the push plate 508 is movable relative to the screw rod 5010; a nut is set on the screw rod 5010;

[0060] Place the workpiece to be processed between the two clamping blocks 507, push the push plates 508 on both sides, so that the two clamping blocks 507 move relative to each other, and squeeze and clamp the workpiece to be processed in the middle; when it is determined that the clamping is stable, screw the nut on the screw rod 5010 so that the nut is pressed against the outer wall of the edge stop block 505; at this time, the two clamping blocks 507 will not loosen, and the workpiece to be processed between the two clamping blocks 507 is also clamped firmly.

[0061] like Figure 1As shown, crisscross longitude and latitude lines are arranged on the plane of the workbench 1 in equal spacing units, and these longitude and latitude lines constitute positioning coordinate lines 201. Each intersection of the longitude and latitude lines is a positioning coordinate point, and the spacing between two adjacent longitude lines and two adjacent latitude lines is equal. This equal spacing unit can be 5mm or other more refined spacing units, so that the X-axis and Y-axis coordinate values ​​of adjacent coordinate points are increased or decreased by 5mm units;

[0062] A positioning point signal source is set corresponding to the positioning coordinate point position at each intersection. In this embodiment, the positioning point signal source is set to an infrared diode 6; the positioning coordinate data at each intersection are pre-stored in the microprocessor in the positioning control unit, and all infrared diodes 6 are communicatively connected to the microprocessor; the microprocessor can determine the corresponding infrared diode 6 according to the coordinate value data, and control the corresponding infrared diode 6 to emit infrared light.

[0063] like Figure 5 As shown, an infrared receiving sensor 7 is arranged at the bottom center position of the movable seat 5 of the clamping structure, and the infrared receiving sensor 7 is communicatively connected to the microprocessor; when the infrared receiving sensor 7 receives the infrared light source signal, the receiving signal is fed into the microprocessor, and the microprocessor receives the signal and sends a control instruction to the loudspeaker in the positioning control part, and the loudspeaker sends a prompt sound.

[0064] The positioning process of the workbench in this embodiment is as follows: according to the position of the tool above the CNC machine tool workbench 1, determine the coordinate point of the tool projected onto the workbench plane 2; input the coordinate point data into the microprocessor of the positioning control unit, and after receiving the coordinate point data, the microprocessor sends a control instruction to the corresponding infrared diode 6; the infrared diode 6 at the corresponding coordinate point position emits infrared light; then start to move the slide 4 and the moving seat 5 of the clamping structure on the workbench 1 to the vicinity of the positioning coordinate point; start to make a tentative movement near the positioning coordinate point, and move the slide 4 and the moving seat 5 at the same time, which is equivalent to accurately searching for the target positioning point in the X-axis and Y-axis directions. When the infrared receiving sensor 7 at the bottom center of the moving seat 5 receives the infrared light source emitted by the infrared diode 6 at the target positioning point, the receiving signal is fed into the microprocessor, and the microprocessor sends a control instruction to the loudspeaker to make the loudspeaker emit a prompt sound; the appearance of the prompt sound proves that the center of the moving seat 5 of the clamping structure has been accurately positioned to the target coordinate point, and the part to be processed clamped on the clamping structure has also been positioned to the target coordinate point.

[0065] Example 2

[0066] Based on the embodiment 1, in the embodiment 1, the sliding structure of the sliding frame 4 is configured as the cooperation between the sliding groove and the sliding block;

[0067] like Figure 1 As shown, in this embodiment, the sliding structure is set to cooperate with the sliding rod 3 and the sliding frame 4 itself;

[0068] Similarly, the upper edge of the workbench 1 is higher than the workbench plane 2; a sliding rod 3 is arranged on each side of the front and rear opposite side edges; the sliding rod 3 is arranged as a cylindrical rod structure; cylindrical through grooves are opened at both ends of the sliding frame 4, and the sliding rod 3 can pass through the through grooves on the sliding frame 4, and the sliding frame 4 can move on the sliding rod 3; thereby realizing that the sliding frame 4 is slidably arranged on the workbench 1.

[0069] As a preferred embodiment, after the slide frame 4 moves to a certain position in the sliding axis direction, it needs to stop at the position and not move, in order to make the positioning of the slide frame 4 more stable; Figure 1 As shown, a long through slot 101 is provided on the edge of the workbench 1 beside the sliding rod 3; the through slot 101 passes through the edge of the workbench 1;

[0070] like Figure 2 As shown, an interpenetrating clamping block 402 is provided at each end of the slide frame 4; the interpenetrating clamping block 402 is composed of two upper and lower plates; the lower plate is inserted into the interpenetrating slot 101, and the upper plate is located on the interpenetrating slot 101;

[0071] A bolt passes through the end of the interpenetrating clamping block 402, and nuts are set at both ends of the bolt; the nut is screwed to make the nut leave the surface of the interpenetrating clamping block 402, and the interpenetrating clamping block 402 will not affect the free movement of the slide 4; when the position of the slide 4 needs to be fixed, the nut is screwed in the direction of the interpenetrating clamping block 402, so that the nuts at both ends of the bolt are pressed against the interpenetrating clamping block 402, and the interpenetrating clamping block 402 squeezes and clamps the edge of the workbench 1; the slide 4 cannot move relative to the workbench 1, and the position can be locked.

[0072] Example 3

[0073] Based on Example 1, in Example 1, after the movable seat 5 of the clamping structure moves on the sliding frame 4, there is no other auxiliary fixing structure to limit and lock the position of the movable seat 5 of the clamping structure;

[0074] like Figure 4 As shown, in this embodiment, a side wing 502 is horizontally arranged on the two opposite sides of the moving seat 5 where the side block 505 is not arranged, and two bolt barrels 503 are arranged on the side wing 502, and the bolt barrels 503 penetrate the surface of the side wing 502; bolts 504 are arranged in the bolt barrels 503;

[0075] When the movable seat 5 of the clamping structure moves to the accurate positioning point, the bolt 504 in the bolt tube 503 is screwed downward until the lower end of the bolt 504 is pressed against the upper surface of the slide frame 4; at this time, the position of the clamping structure will be locked, and the clamping structure will no longer be able to be moved relative to the slide frame 4.

[0076] Example 4

[0077] Based on Example 1, Figure 4 As shown, in this embodiment, an elastic member 509 is provided between the push plate 508 and the side block 505 of the clamping structure, and the elastic member 509 here can be a spring; the spring is provided on the outside of the push rod 506, and there is no contact connection relationship between the spring and the outer wall of the push rod 506; the two ends of the spring are respectively fixedly connected to the surface of the push plate 508 and the side block 505;

[0078] When there is no part to be processed between the clamping blocks 507, the two clamping blocks 507 are in normal positions; the springs are in a state of no deformation; when the part to be processed is placed between the clamping blocks 507, the two clamping blocks 507 will move in opposite directions, at which time the clamping blocks 507 drive the push rod 506, and the push rod 506 drives the push plate 508 to move, and the springs will be stretched and deformed; after the part to be processed is placed in place, the springs will exert opposite forces on the two clamping blocks 507 due to the deformation recovery effect, which to a certain extent helps increase the clamping extrusion force and makes the clamping more stable.

[0079] Example 5

[0080] Based on the embodiment 1, the infrared diode 6 is directly mounted on the workbench plane 2, in order to prevent the infrared diode 6 from being affected by the splashing of coolant and cutting debris during part processing; Figure 7 As shown, a transparent plate 202 is arranged above the workbench plane 2 and the infrared diode 6; the transparent plate 202 covers the infrared diode 6 and the workbench plane 2;

[0081] The transparent plate 202 does not affect the diffusion of the infrared light source emitted by the infrared diode 6 , and can protect the infrared diode 6 at the same time.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0083] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A CNC machine tool workbench with positioning function, characterized in that: include: Workbench, slide frame, clamping structure, positioning control unit, positioning point signal source, signal source collector; The upper surface of the workbench is set as a workbench plane; The slide frame is slidably arranged on the workbench; A clamping structure is slidably arranged on the slide frame; the sliding direction of the clamping structure is perpendicular to the sliding direction of the slide frame; the clamping structure is used to clamp and fix the parts to be processed; The workbench plane is provided with crisscrossing longitude and latitude lines in equal intervals, and a fixed-position signal source is provided at each intersection of the longitude and latitude lines; The positioning point signal source is communicatively connected to the positioning control unit, and the positioning control unit is used to control the positioning point signal source to send a signal; A signal source collector is arranged at the center of the bottom of the clamping structure, and the signal source collector is communicatively connected to the positioning control unit; The signal source collector is used to collect the signal sent by the positioning point signal source and feed it into the positioning control unit.

2. According to claim 1, a CNC machine tool workbench with positioning function, characterized in that: The positioning control unit is integrated with a microprocessor, and the microprocessor is communicatively connected to a positioning point signal source and a signal source collector.

3. The CNC machine tool workbench with positioning function according to claim 2, characterized in that: The positioning point signal source is set as an infrared diode; The signal source collector is configured as an infrared receiving sensor.

4. The CNC machine tool workbench with positioning function according to claim 1, characterized in that: The upper edge of the workbench is higher than the plane of the workbench; A sliding rod is arranged on each side of the two opposite edges; Through slots are provided at both ends of the slide frame, and the slide rod passes through the through slots on the slide frame, so that the slide frame is slidably arranged on the workbench.

5. The CNC machine tool workbench with positioning function according to claim 4, characterized in that: A long slot is provided on the edge of the workbench beside the sliding rod; A through-and-through clamping block is disposed at each end of the slide frame; the through-and-through clamping block is composed of two upper and lower plates; the lower plate is inserted into the through-and-through slot, and the upper plate is located on the through-and-through slot; A bolt is passed through the end of the interlaced clamping block, and nuts are arranged at both ends of the bolt.

6. The CNC machine tool workbench with positioning function according to claim 1, characterized in that: The middle part of the slide frame is provided with a through hollow structure, and a slide rail is provided in the hollow structure; The clamping structure is slidably arranged on the slide rail.

7. A CNC machine tool workbench with positioning function according to claim 6, characterized in that: The clamping structure comprises: a moving seat, a side block, a push rod, a push plate, a clamping block, and a screw; A slideway is provided in the movable seat, the slide rail passes through the slideway, and the movable seat can slide relative to the slide rail; A side stopper is vertically arranged on the edges of the two opposite sides above the movable seat; The side block passes through a push rod, and the push rod is movable relative to the side block; A push plate is provided at one end of the push rod located outside the side block, and a clamping block is provided at one end of the push rod located inside the side block; A screw rod is arranged on the outer side of the side stopper; the screw rod passes through a push plate, and the push plate is movable relative to the screw rod; a nut is arranged on the screw rod.

8. The CNC machine tool workbench with positioning function according to claim 7, characterized in that: An elastic member is arranged between the push plate and the side stopper, and the elastic member is arranged outside the push rod; The two ends of the elastic member are respectively fixed to the push plate and the surface of the side stop block.

9. The CNC machine tool workbench with positioning function according to claim 7, characterized in that: A side wing is horizontally arranged on the two opposite sides of the movable seat where the side block is not arranged, and a bolt barrel is arranged on the side wing, and the bolt barrel passes through the surface of the side wing; Bolts are arranged in the bolt barrel.

10. The CNC machine tool workbench with positioning function according to claim 1, characterized in that: The positioning point signal source is arranged on the workbench plane; a transparent plate is arranged above the workbench plane and the positioning point signal source; and the transparent plate covers the positioning point signal source and the workbench plane.

Images