CN215699900U

CN215699900U - Workpiece positioning device

Info

Publication number: CN215699900U
Application number: CN202121936142.0U
Authority: CN
Inventors: 潘伟杰; 黄文豪; 陈荣; 宋银春
Original assignee: Guangdong Lyric Robot Automation Co Ltd
Current assignee: Guangdong Lyric Robot Automation Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-02-01
Anticipated expiration: 2031-08-17

Abstract

The present application discloses a workpiece positioning device. A workpiece positioning device includes a base, a connecting rod and an induction assembly. One end of the connecting rod is connected with the base in a position-adjustable manner, and the other end of the connecting rod is connected with the sensing assembly in a position-adjustable manner. The induction assembly includes an induction part, a control circuit and a response module. The induction part and the response module are connected to the control circuit. The induction assembly is configured so that when the induction part contacts the workpiece to be processed, the positive and negative electrodes of the control circuit are turned on to drive the response module to work. The technical solution provided by the present application can solve the problems of low positioning efficiency and low processing quality of the workpiece to be processed in the prior art.

Description

Workpiece positioning device

Technical Field

The application relates to the technical field of workpiece machining, in particular to a workpiece positioning device.

Background

Before a workpiece to be processed is processed, the coordinates of the end face of the workpiece to be processed need to be determined, so that the tool can process the workpiece to be processed according to the coordinates of the end face of the workpiece to be processed. In the prior art, a manual operation scale is abutted against the end face of a workpiece to be machined, the end face coordinate of the workpiece to be machined is determined by combining the data measured by the scale with the machine tool coordinate, and then the workpiece to be machined is machined, so that the problems of low positioning efficiency and poor positioning precision of positioning a cutter on the surface of the workpiece to be machined are caused by the measurement mode, and the production efficiency and the production quality of a product are difficult to improve.

SUMMERY OF THE UTILITY MODEL

The application provides a workpiece positioning device, which can solve the problems of low positioning efficiency and low processing quality of workpieces to be processed in the prior art.

In a first aspect, the present invention provides a workpiece positioning device, comprising a base, a connecting rod and an induction assembly;

one end of the connecting rod is connected with the base in a position-adjustable manner, and the other end of the connecting rod is connected with the sensing assembly in a position-adjustable manner;

the induction component comprises an induction part, a control circuit and a response module, the induction part and the response module are connected with the control circuit, and when the induction part contacts with a workpiece to be processed, the positive electrode and the negative electrode of the control circuit are conducted to drive the response module to work so as to generate a response signal.

In the implementation process, the base is fixed relative to the machining lathe, and the position of the connecting rod relative to the base and the position of the sensing assembly relative to the connecting rod are adjusted, so that the sensing part is adjusted to a preset position, and the preset position is used for determining the position of a workpiece to be machined. Before a workpiece to be machined is machined, firstly, the coordinate of the workpiece to be machined needs to be determined, and then machining equipment is enabled to machine according to the coordinate of the workpiece to be machined, in order to reduce machining errors, the workpiece positioning device provided by the application can firstly adjust the induction part to a preset position according to requirements, before the workpiece to be machined is machined, the workpiece to be machined can be transported to the workpiece positioning device, when the workpiece to be machined is in contact with the induction part, the positive electrode and the negative electrode of the control circuit are conducted (namely, the workpiece to be machined can play a conductive role, the positive electrode and the negative electrode of the control circuit are conducted), the response module works to generate a response signal to prompt that the workpiece to be machined is in the preset position, and the machining equipment can machine the workpiece to be machined according to the coordinate represented by the preset position so as to guarantee the machining accuracy of the workpiece to be machined. It should be noted that the response signal may include an acoustic signal, a visual signal or an electrical signal; when the response signal comprises a sound signal or a visual signal, the operator can be effectively prompted, and the workpiece to be machined needs to be processed after being positioned; when the response signal comprises an electric signal, the electric signal can be transmitted to a control module of the processing system, and based on the electric signal, the processing system can judge that the workpiece to be processed is positioned and finished, and then the processing procedure is carried out.

In an alternative embodiment, the base is formed with a first screw hole;

two first lugs which are mutually spaced are formed at one end of the connecting rod, and a first through hole is formed in each first lug;

the connecting rod is provided with a first rotating shaft and a first fastening bolt, the first rotating shaft is provided with a through hole, the through hole penetrates through the wall surface of the rotating shaft, and the first rotating shaft can rotatably penetrate through the first through holes of the two first lugs, so that the connecting rod can rotate around the first rotating shaft;

the first fastening bolt penetrates through the through hole and is screwed in the first screw hole, and the first lug is abutted to the base to stop the connecting rod from rotating around the first rotating shaft.

In the process of the realization, the position of the connecting rod can be adjusted through the tightness of the first fastening bolt. When the position of the connecting rod relative to the base needs to be adjusted, an operator can unscrew the first fastening bolt and pull the connecting rod, and the force for pulling the connecting rod is greater than the friction force between the first support lug and the base, so that the connecting rod can rotate; when the connecting rod needs to be kept static relative to the base, an operator screws the first fastening bolt, and applies force towards the first support lug to the first rotating shaft through the first fastening bolt, so that the first rotating shaft is abutted against the base, and the connecting rod is prevented from rotating around the first rotating shaft.

In an optional embodiment, the base comprises a fixed base and a first bearing seat, a first arc-shaped groove is formed on the surface of the first bearing seat, and a first screw hole is formed on the fixed base;

the first support lug is in sliding fit with the first arc-shaped groove, and the first fastening bolt penetrates through the through hole and the first bearing seat to be in threaded connection with the first screw hole.

In the process of realizing, the first arc-shaped groove plays a role in guiding, and the connecting rod can stably move around the first rotating shaft under the guiding of the first arc-shaped groove.

In an alternative embodiment, the sensing assembly comprises a stationary housing, which is connected to the connecting rod in a position-adjustable manner;

the control circuit and the response module are arranged in the fixed shell, the surface of the fixed shell is provided with a sensing through hole, and the sensing part is connected with the control circuit and penetrates out of the sensing through hole.

In the implementation process, the control circuit and the response module are protected by the fixed shell, so that the control circuit and the response module are prevented from being influenced by external pollutants, and the control circuit and the response module cannot be normally controlled; the induction part extends out of the induction through hole of the fixed shell and can be effectively contacted with a workpiece to be processed so as to judge whether the workpiece to be processed is in a preset position.

In an alternative embodiment, two second lugs spaced from each other are formed at one end of the connecting rod, and a second through hole is formed in each second lug;

the connecting rod is provided with a second rotating shaft and a second fastening bolt, a second screw hole is formed in the wall surface of the second rotating shaft, and the second rotating shaft can rotatably penetrate through the second through holes of the two second support lugs;

the fixed shell is provided with a third through hole which penetrates through the top surface and the bottom surface of the fixed shell;

the second fastening bolt penetrates through the third through hole from the top surface of the fixing shell and is used for being in threaded connection with the second screw hole so as to enable the fixing shell to be abutted against the second support lug, and therefore the second rotating shaft is prevented from rotating relative to the second support lug.

In the process of the realization, the position of the induction assembly can be adjusted through the tightness of the second fastening bolt. When the position of the sensing assembly relative to the connecting rod needs to be adjusted, an operator can unscrew the second fastening bolt and pull the fixed shell, and the force for pulling the fixed shell is greater than the friction force between the fixed shell and the second support lug, so that the second rotating shaft can drive the fixed shell to rotate; when the sensing assembly needs to be kept static relative to the connecting rod, the operator screws the second fastening bolt, and applies force towards the second support lug to the fixed shell through the second fastening bolt, so that the fixed shell is abutted against the second support lug, and the second rotating shaft is prevented from rotating relative to the connecting rod.

In an optional embodiment, the fixed housing is configured with a second bearing seat, the second bearing seat is arranged on the bottom surface of the fixed housing, and a second arc-shaped groove is formed on the surface of the second bearing seat;

the second lug is in sliding fit with the second arc-shaped groove, and the second fastening bolt penetrates through the third through hole and the second bearing seat to be in threaded connection with the second screw hole.

In the process of realizing, the second arc-shaped groove plays a role in guiding, and the fixed shell can stably move relative to the second support lug of the connecting rod through the second bearing seat.

In an alternative embodiment, the sensing portion comprises a sensing rod, the sensing through hole extends along an axis of the sensing rod, and the sensing rod is arranged in the sensing through hole in a position-adjustable manner.

In the process of realizing, when the induction rod contacts the workpiece to be processed, the anode and the cathode of the control circuit are conducted, and the response module is driven to work to generate a response signal, so that the preset position can be efficiently and quickly adjusted by adjusting the position of the induction rod in the induction through hole.

In an optional embodiment, a notch is formed on the side surface of the fixed shell, the notch penetrates through the induction through hole, and the notch allows the induction through hole to contract radially;

the third through hole penetrates through the notch;

when the second fastening bolt is screwed in the second screw hole, the second fastening bolt abuts against the top surface of the fixed shell so that the induction through hole contracts along the radial direction of the opening.

In the implementation process, the induction through hole can be radially contracted along the opening by screwing the second fastening bolt, so that the position of the induction rod relative to the fixed shell is fixed; when the second fastening bolt is unscrewed, the induction through hole is expanded along the gap, so that the position of the induction rod in the induction through hole can be easily adjusted.

In an alternative embodiment, the induction rod is provided with a protective sleeve, the wall surface of the protective sleeve is provided with a slot, and the slot penetrates through two opposite ends of the protective sleeve along the axis of the protective sleeve to allow the protective sleeve to radially contract along the slot;

the protective sheath is worn to locate by the response pole, and the protective sheath is located in the response through-hole.

In-process of above-mentioned realization, the protective sheath plays the guard action to the response pole to the radial shrink of avoiding responding to the through-hole causes the damage to the body of rod of response pole.

In an alternative embodiment, the response module includes an alarm.

In the process of realizing, when the workpiece to be machined is in contact with the sensing part, the positive electrode and the negative electrode of the control circuit are conducted, the alarm is triggered to give out alarm sound, and the machined workpiece is prompted to be in a preset position.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a perspective view of a workpiece positioning device according to the present embodiment;

FIG. 2 is a cross-sectional view of the workpiece positioning device of this embodiment from a first perspective;

FIG. 3 is a perspective view of the connecting rod of the present embodiment;

FIG. 4 is a perspective view of the fixing base of the present embodiment;

FIG. 5 is a schematic partial structure diagram of a sensing element in the present embodiment;

FIG. 6 is a perspective view of the stationary housing in the present embodiment;

FIG. 7 is a cross-sectional view of the workpiece positioning device of this embodiment from a second perspective;

fig. 8 is a schematic view of the protective cover in this embodiment.

Icon: 10-a base; 11-a first screw hole; 12-a stationary base; 13-a first bearing seat; 13 a-a first arc-shaped slot;

20-a connecting rod; 21-a first lug; 21 a-a first via; 22-a first shaft; 22 a-perforation; 23-a first fastening bolt; 24-a second lug; 24 a-a second via; 25-a second rotating shaft; 26-a second screw hole; 27-a second carrier seat; 27 a-a second arcuate slot; 28-a second fastening bolt;

30-a sensing component; 31-a sensing portion; 32-a control circuit; 33-a response module; 34-a stationary housing; 35-inductive vias; 36-a third via; 37-a gap; 38-a fourth via;

40-protective sleeve; 41-slotting.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The technical solution in the present application will be described below with reference to the accompanying drawings.

The embodiment provides a workpiece positioning device, which can solve the problems of low positioning efficiency and low processing quality of workpieces to be processed in the prior art.

Referring to fig. 1, fig. 1 is a perspective view of a workpiece positioning device in the present embodiment.

The workpiece positioning device includes a base 10, a connecting rod 20, and a sensing assembly 30. One end of the connecting rod 20 is adjustably connected to the base 10, and the other end of the connecting rod 20 is adjustably connected to the sensing assembly 30. The sensing assembly 30 comprises a sensing part 31, a control circuit 32 (see fig. 5) and a response module 33 (see fig. 5), wherein the sensing part 31 and the response module 33 are connected with the control circuit 32, and when the sensing part 31 contacts the workpiece to be processed, the control circuit 32 is configured to conduct the positive electrode and the negative electrode, and the response module 33 is driven to operate to generate a response signal.

In the implementation process, the base 10 is fixed relative to the machining lathe, and the position of the connecting rod 20 relative to the base 10 and the position of the sensing assembly 30 relative to the connecting rod 20 are adjusted, so that the sensing portion 31 is adjusted to a preset position, which is used for determining the position of the workpiece to be machined. Before a workpiece to be machined is machined, firstly, the coordinate of the workpiece to be machined needs to be determined, and then machining equipment is enabled to machine according to the coordinate of the workpiece to be machined, in order to reduce machining errors, the workpiece positioning device provided by the application can firstly adjust the induction part 31 to a preset position according to requirements, before the workpiece to be machined is machined, the workpiece to be machined can be transported to the workpiece positioning device, when the workpiece to be machined is in contact with the induction part 31, the positive electrode and the negative electrode of the control circuit 32 are conducted (namely, the workpiece to be machined can play a conductive role, the positive electrode and the negative electrode of the control circuit 32 are conducted), the response module 33 works to generate a response signal to prompt that the workpiece to be machined is in the preset position, and the machining equipment can machine the workpiece to be machined according to the coordinate represented by the preset position so as to ensure the machining accuracy of the workpiece to be machined. It should be noted that the response signal may include an acoustic signal, a visual signal or an electrical signal; when the response signal comprises a sound signal or a visual signal, the operator can be effectively prompted, and the workpiece to be machined needs to be processed after being positioned; when the response signal comprises an electric signal, the electric signal can be transmitted to a control module of the processing system, and based on the electric signal, the processing system can judge that the workpiece to be processed is positioned and finished, and then the processing procedure is carried out.

It should be noted that, in this embodiment, the response module 33 includes an alarm. When the workpiece to be machined is in contact with the sensing part 31, the positive electrode and the negative electrode of the control circuit 32 are conducted, the alarm is triggered to give out alarm sound, and the workpiece to be machined is prompted to be located at the preset position.

In some embodiments of the present application, please refer to fig. 2 and fig. 3, fig. 2 is a cross-sectional view of the workpiece positioning device in the embodiment at a first viewing angle, and fig. 3 is a perspective view of the connecting rod 20 in the embodiment. The base 10 is formed with a first screw hole 11. One end of the connecting rod 20 is formed with two first lugs 21 spaced from each other, and the first lugs 21 are formed with first through holes 21 a. The connecting rod 20 is provided with a first rotating shaft 22 and a first fastening bolt 23, the first rotating shaft 22 is formed with a through hole 22a, the through hole 22a penetrates through the wall surface of the rotating shaft, and the first rotating shaft 22 rotatably penetrates through the first through holes 21a of the two first lugs 21 so that the connecting rod 20 can rotate around the first rotating shaft 22. The first fastening bolt 23 is screwed into the first screw hole 11 through the through hole 22a, and is used for abutting the first lug 21 against the base 10 to stop the connecting rod 20 from rotating around the first rotating shaft 22.

In the above implementation, the position of the connecting rod 20 can be adjusted by loosening or tightening the first fastening bolt 23. When the position of the connecting rod 20 relative to the base 10 needs to be adjusted, an operator can unscrew the first fastening bolt 23 and pull the connecting rod 20, and the connecting rod 20 can be rotated by the force of pulling the connecting rod 20 being greater than the friction force between the first support lug 21 and the base 10; when the connecting rod 20 needs to be kept stationary relative to the base 10, the operator tightens the first fastening bolt 23, and applies a force to the first rotating shaft 22 through the first fastening bolt 23 toward the first lug 21, so that the first rotating shaft 22 abuts against the base 10, and the connecting rod 20 is prevented from rotating around the first rotating shaft 22.

In some embodiments of the present application, please refer to fig. 2 and 4, and fig. 4 is a perspective view of the fixing base 12 in this embodiment. The base 10 includes a fixed base 12 and a first carrying seat 13. The fixing base 12 is formed with a first screw hole 11. The first carrying seat 13 has a first arc-shaped groove 13a formed on a surface thereof. The first support lug 21 is in sliding fit with the first arc-shaped groove 13a, and the first fastening bolt 23 passes through the through hole 22a and the first bearing seat 13 to be in threaded connection with the first screw hole 11.

In the above implementation process, the first arc-shaped groove 13a plays a guiding role, and the connecting rod 20 can smoothly move around the first rotating shaft 22 under the guidance of the first arc-shaped groove 13 a.

In some embodiments of the present application, please refer to fig. 1, fig. 5 and fig. 6, in which fig. 5 is a schematic partial structure diagram of the sensing assembly 30 in the present embodiment, and fig. 6 is a perspective view of the fixing housing 34 in the present embodiment. The sensing assembly 30 includes a stationary housing 34, the stationary housing 34 being adjustably connected to the connecting rod 20. The control circuit 32 and the response module 33 are disposed inside the fixed housing 34, the surface of the fixed housing 34 has a sensing through hole 35, and the sensing portion 31 is connected to the control circuit 32 and penetrates through the sensing through hole 35.

In the implementation process, the control circuit 32 and the response module 33 are protected by the fixed shell 34, so that the control circuit 32 and the response module 33 are prevented from being affected by external pollutants, and the control circuit 32 and the response module 33 cannot be normally controlled; the sensing part 31 is extended from the sensing through hole 35 of the fixed housing 34 and can be effectively contacted with the workpiece to be processed to determine whether the workpiece to be processed is at a preset position.

In some embodiments of the present application, please refer to fig. 3 and 7, in which fig. 7 is a sectional view of the workpiece positioning device in the embodiment from a second perspective. One end of the connecting rod 20 is formed with two second lugs 24 spaced apart from each other, and the second lugs 24 are formed with second through holes 24 a. The connecting rod 20 is provided with a second rotating shaft 25 and a second fastening bolt 28, a second screw hole 26 is formed in a wall surface of the second rotating shaft 25, and the second rotating shaft 25 rotatably passes through the second through holes 24a of the two second lugs 24. The stationary housing 34 is formed with a third through-hole 36, and the third through-hole 36 penetrates the top and bottom surfaces of the stationary housing 34. The second fastening bolt 28 passes through the third through hole 36 from the top surface of the fixing housing 34, and is used for being screwed with the second screw hole 26 to press the fixing housing 34 against the second support lug 24, so as to prevent the second rotating shaft 25 from rotating relative to the second support lug 24.

In the above implementation, the position of the sensing assembly 30 can be adjusted by loosening or tightening the second fastening bolt 28. When the position of the sensing assembly 30 relative to the connecting rod 20 needs to be adjusted, an operator can unscrew the second fastening bolt 28 and pull the fixing housing 34, and the force for pulling the fixing housing 34 is greater than the friction force between the fixing housing 34 and the second support lug 24, so that the second rotating shaft 25 drives the fixing housing 34 to rotate; when the sensing assembly 30 needs to be kept stationary relative to the connecting rod 20, the operator tightens the second fastening bolt 28, and applies a force to the fixed housing 34 through the second fastening bolt 28 toward the second lug 24, so that the fixed housing 34 abuts against the second lug 24 to prevent the second rotating shaft 25 from rotating relative to the connecting rod 20.

In some embodiments of the present application, the fixed housing 34 is configured with a second bearing seat 27, the second bearing seat 27 is disposed on a bottom surface of the fixed housing 34, and a second arc-shaped groove 27a is formed on a surface of the second bearing seat 27. The second lug 24 is in sliding fit with the second arc-shaped groove 27a, and the second fastening bolt 28 passes through the third through hole 36 and the second bearing seat 27 to be screwed with the second screw hole 26.

In the above implementation process, the second arc-shaped groove 27a plays a guiding role, and the fixed housing 34 can smoothly move relative to the second lug 24 of the connecting rod 20 through the second bearing seat 27.

In some embodiments of the present application, the sensing portion 31 includes a sensing rod, the sensing through hole 35 extends along an axis of the sensing rod, and the sensing rod is adjustably disposed in the sensing through hole 35.

In the process of realizing the above, when the induction rod contacts the workpiece to be processed, the positive electrode and the negative electrode of the control circuit 32 are conducted, and the response module 33 is driven to work to generate a response signal, so that the preset position can be efficiently and quickly adjusted by adjusting the position of the induction rod in the induction through hole 35.

Referring to fig. 3 and 6, a notch 37 is formed on a side surface of the fixing housing 34, the notch 37 penetrates the sensing through hole 35, and the notch 37 allows the sensing through hole 35 to contract radially. The third through hole 36 extends through the opening 37. When the second fastening bolt 28 is screwed in the second screw hole 26, the second fastening bolt 28 abuts against the top surface of the fixed shell 34 so that the sensing through hole 35 contracts in the radial direction along the notch 37.

In the implementation process, the sensing through hole 35 can be radially contracted along the notch 37 by screwing the second fastening bolt 28, so that the position of the sensing rod relative to the fixed shell 34 is fixed; when the second fastening bolt 28 is loosened, the sensing through-hole 35 is expanded along the slit 37, so that the position of the sensing rod in the sensing through-hole 35 can be easily adjusted. It should be noted that the slit 37 extends linearly from the side of the fixed casing 34 to the inside of the fixed casing 34, a circular through hole is formed at the end of the slit 37, which can be defined as a fourth through hole 38, and the size of the fourth through hole 38 is larger than that of the slit 37 itself, so as to increase the deformation of the sensing through hole 35 along the radial contraction of the slit 37.

Referring to fig. 8, fig. 8 is a schematic view of the protective cover 40 in the present embodiment.

The sensing rod is provided with a protective sleeve 40, and the wall surface of the protective sleeve 40 is formed with a slot 41, and the slot 41 penetrates through two opposite ends of the protective sleeve 40 along the axis of the protective sleeve 40 to allow the protective sleeve 40 to contract along the radial direction of the slot 41. The sensing rod penetrates through the protective sleeve 40, and the protective sleeve 40 is arranged in the sensing through hole 35. The protective sleeve 40 protects the sensing rod to prevent the radial shrinkage of the sensing through hole 35 from damaging the rod body of the sensing rod.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A workpiece positioning device is characterized by comprising a base, a connecting rod and a sensing assembly;

the induction component comprises an induction part, a control circuit and a response module, the induction part and the response module are connected with the control circuit, and the induction component is configured to enable the positive electrode and the negative electrode of the control circuit to be conducted to drive the response module to work when the induction part contacts a workpiece to be processed.

2. The workpiece positioning device of claim 1,

the base is provided with a first screw hole;

3. The workpiece positioning device of claim 2,

the base comprises a fixed base and a first bearing seat, a first arc-shaped groove is formed on the surface of the first bearing seat, and the fixed base is provided with a first screw hole;

4. The workpiece positioning device of claim 1,

the induction assembly comprises a fixed shell, and the fixed shell is connected with the connecting rod in a position-adjustable manner;

the control circuit and the response module are arranged in the fixed shell, the surface of the fixed shell is provided with an induction through hole, and the induction part is connected with the control circuit and penetrates out of the induction through hole.

5. The workpiece positioning device of claim 4,

two second lugs which are mutually spaced are formed at one end of the connecting rod, and a second through hole is formed in each second lug;

the second fastening bolt penetrates through the third through hole from the top surface of the fixed shell and is used for being in threaded connection with the second screw hole so as to enable the fixed shell to be abutted against the second support lug, and therefore the second rotating shaft is prevented from rotating relative to the second support lug.

6. The workpiece positioning device of claim 5,

the fixed shell is provided with a second bearing seat, the second bearing seat is arranged on the bottom surface of the fixed shell, and a second arc-shaped groove is formed in the surface of the second bearing seat;

the second lug is in sliding fit with the second arc-shaped groove, and the second fastening bolt penetrates through the third through hole and the second bearing seat and is in threaded connection with the second screw hole.

7. The workpiece positioning device of claim 5,

the induction part comprises an induction rod, the induction through hole extends along the axis of the induction rod, and the position of the induction rod is adjustably arranged in the induction through hole.

8. The workpiece positioning device of claim 7,

a notch is formed on the side surface of the fixed shell, the notch penetrates through the induction through hole, and the induction through hole is allowed to contract radially through the notch;

the third through hole penetrates through the notch;

9. The workpiece positioning device of claim 8,

the induction rod is provided with a protective sleeve, a slot is formed in the wall surface of the protective sleeve, and the slot penetrates through two opposite ends of the protective sleeve along the axis of the protective sleeve so as to allow the protective sleeve to contract along the radial direction of the slot;

the induction rod penetrates through the protective sleeve, and the protective sleeve is arranged in the induction through hole.

10. The workpiece positioning device according to any one of claims 1 to 9,

the response module comprises an alarm.