A symmetry detection device for machining mechanical parts

Abstract

The present invention provides a symmetry detection device for machining mechanical parts, and relates to the technical field of symmetry detection. The symmetry detection device for machining mechanical parts comprises a workbench, and a rotating fixing component is provided at one end of the top of the workbench, and a circular workpiece is fixed on the rotating fixing component. The symmetry detection device for machining mechanical parts can fix the circular workpiece and drive it to rotate by providing a rotating fixing component, and at the same time, by cooperating with the detection component, the symmetry of the circular workpiece can be quickly detected without the use of expensive precision instruments. The device is low in cost, suitable for use in small factories, and has good economic benefits. At the same time, by providing a detection component that can detect the symmetry and end face verticality of the circular workpiece, the device has various functions, so there is no need to purchase additional instruments for measuring the end face verticality, which further saves costs.

Description

Technical Field

[0001] The invention relates to the technical field of symmetry detection, in particular to a symmetry detection device for machining mechanical parts. Background Art

[0002] Mechanical parts, also known as mechanical elements, are the basic components of machinery and are inseparable individual parts that make up machinery and machines. In the process of producing mechanical parts, they often need to be processed, and after the processing is completed, the factory inspection of mechanical parts is also an indispensable link. Therefore, after the mechanical parts are processed, they usually need to be inspected by testing equipment to determine whether they meet the factory standards. When inspecting circular workpieces, the symmetry inspection is particularly important. If the symmetry does not meet the marking, a series of problems such as eccentricity will occur after leaving the factory.

[0003] In the prior art, the symmetry detection of circular workpieces generally requires the use of precision instruments. Precision instruments are generally expensive. For some smaller factories, it is difficult for them to afford expensive precision instruments. Therefore, they cannot use precision instruments to detect the symmetry of circular workpieces. At the same time, the existing precision instruments for measuring the symmetry of circular workpieces can only measure their symmetry and have a single function. For example, they cannot measure the verticality of the end face of the circular workpiece. When the verticality of the end face needs to be measured, it is necessary to purchase additional instruments, which increases the factory cost and is not conducive to practical application and operation.

[0004] Therefore, those skilled in the art provide a symmetry detection device for machining mechanical parts to solve the problems raised in the above background technology. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a symmetry detection device for machining mechanical parts, which solves the problems of high cost and single function mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A symmetry detection device for machining mechanical parts, comprising a workbench, a rotating fixed component is arranged at one end of the top of the workbench, a circular workpiece is fixed on the rotating fixed component, the rotating fixed component is used to drive the circular workpiece to rotate, and a fixed shaft is installed on the top of the workbench;

[0007] A lifting assembly is arranged on the outer side of the fixed shaft, a lateral movement assembly is arranged on the lifting assembly, and a detection assembly is arranged on the lateral movement assembly;

[0008] The lifting assembly is used to drive the transverse movement assembly and the detection assembly to move up and down, and the transverse movement assembly is used to drive the detection assembly to move laterally;

[0009] The detection component is used to detect the symmetry and end face verticality of the circular workpiece.

[0010] Through the above technical solution, a rotating fixing component is set up, which can fix the circular workpiece and drive it to rotate. At the same time, the detection component is used in conjunction with it to quickly detect the symmetry of the circular workpiece without the need to use expensive precision instruments. The equipment is low-cost and suitable for use in small factories with good economic benefits. At the same time, by setting up a detection component that can detect the symmetry and end face verticality of the circular workpiece, the equipment is made multifunctional, so there is no need to purchase additional instruments for measuring the end face verticality, which further saves costs.

[0011] Preferably, the rotating and fixing assembly comprises a fixed plate, a cylinder, a movable plate, a motor, a three-jaw chuck and a rotating rod;

[0012] The fixed plate is installed at one end of the top of the workbench, the cylinder is installed on the outside of the fixed plate, the piston rod of the cylinder passes through the fixed plate, the movable plate is fixed on the piston rod of the cylinder, the motor is installed on the outside of the movable plate, the three-jaw chuck is installed on the side of the movable plate away from the motor, the output shaft of the motor passes through the movable plate and is fixedly connected to the three-jaw chuck, the rotating rod is clamped on the three-jaw chuck, and the circular workpiece is installed on the end of the rotating rod away from the three-jaw chuck.

[0013] Through the above technical scheme, when inspection is required, the rotating rod used in conjunction with the circular workpiece is clamped and fixed on the three-jaw chuck, and then the cylinder is controlled to work, and its piston rod is used to drive the movable plate to move horizontally, so that the circular workpiece is moved to a position for use with the inspection component, and then the inspection component can be adjusted. After the inspection component is adjusted, the motor is controlled to work to drive the three-jaw chuck to rotate. The rotation of the three-jaw chuck can drive the rotating rod and the circular workpiece to rotate, thereby facilitating the inspection operation.

[0014] Preferably, the lifting assembly comprises a horizontal plate, two planes and a first screw;

[0015] The transverse plate slides on the outside of the fixed shaft, the two planes are respectively opened on both sides of the fixed shaft, the first screw is threadedly connected to one side of the transverse plate, and one end of the first screw passes through the transverse plate and abuts against the outside of one of the planes.

[0016] Through the above technical solution, when it is necessary to adjust the height position of the detection component, the first screw is loosened so that one end thereof no longer contacts the plane, and then the height position of the cross plate, the transverse movement component and the detection component can be adjusted. After the adjustment is completed, the first screw is tightened so that one end thereof contacts the plane again, thereby completing the fixing operation of the cross plate position.

[0017] Preferably, the transverse shift assembly comprises a transverse shift plate and a second screw;

[0018] The transverse plate slides on the outer side of the transverse plate, the second screw is threadedly connected to the top of the transverse plate, and the bottom of the second screw penetrates the transverse plate and contacts the top of the transverse plate.

[0019] Through the above technical solution, when it is necessary to adjust the lateral position of the detection component, the second screw can be loosened so that one end of it no longer contacts the top of the transverse plate, and then the lateral position of the transverse plate and the detection component can be moved and adjusted. After adjusting to the appropriate position, the second screw can be tightened so that one end of it contacts the top of the transverse plate again, thereby completing the fixing operation of the transverse plate position.

[0020] Preferably, the detection assembly includes a rotating shaft, two threaded holes, a third screw, a fixing seat, a detection rod, teeth, a detection roller, a round box, a dial, a gear and a pointer;

[0021] The rotating shaft is rotatably connected to one side of the transverse plate, and the two threaded holes are both opened on the outside of the rotating shaft. The third screw is threadedly connected to one side of the transverse plate, and one end of the third screw extends to the inside of one of the threaded holes and is threadedly connected thereto. The fixing seat is installed on the end of the rotating shaft away from the transverse plate, and the detection rod slides inside the fixing seat, and the teeth are equidistantly installed on the outside of the detection rod. The detection roller is rotatably connected to the bottom of the detection rod, and the round box is fixed on the side of the fixing seat away from the rotating shaft. The dial is arranged on the outside of the round box, and the gear is rotatably connected to the inside of the round box. The central axis of the gear extends to the outside of the round box and is located inside the dial. The gear is meshed with the teeth, and the pointer is fixed on the outside of the central axis of the gear and is used in conjunction with the dial.

[0022] Through the above technical solution, the rotation angle of the gear can be better indicated by utilizing the cooperation between the pointer and the dial.

[0023] Preferably, support legs are installed at the four corners of the bottom of the workbench, and reinforcing plates are installed equidistantly between the outer side of the bottom of the fixed shaft and the top of the workbench.

[0024] Through the above technical solution, the support legs can be used to stably support the workbench; the reinforcement plate can be used to increase the connection stability between the fixed shaft and the workbench.

[0025] Preferably, two slide rails are installed on the top of the workbench, and two slide grooves used in conjunction with the slide rails are opened at the bottom of the movable plate, and the slide grooves are slidably connected to the corresponding slide rails.

[0026] Through the above technical solution, the movement of the movable plate can be made more stable by utilizing the cooperation between the slide groove and the slide rail.

[0027] Preferably, the angle between the two threaded holes is ninety degrees.

[0028] Through the above technical solution, the rotating shaft can be accurately rotated ninety degrees.

[0029] Preferably, a connecting plate is fixedly connected to one side of the detection rod, and a spring is installed between the connecting plate and the fixing seat.

[0030] Through the above technical solution, by utilizing the cooperation between the spring and the connecting plate, the detection rod always has a force that can move it toward the circular workpiece, thereby facilitating the subsequent end face verticality detection operation of the circular workpiece.

[0031] Preferably, a control panel is installed on the top of the workbench and on one side of the fixed plate, and the cylinder, motor and three-jaw chuck are all electrically connected to the control panel.

[0032] Through the above technical solution, the overall operation of the equipment can be controlled by using the control panel.

[0033] The present invention provides a symmetry detection device for machining mechanical parts, which has the following beneficial effects:

[0034] 1. The symmetry detection equipment for mechanical parts processing can fix the circular workpiece and drive it to rotate by setting a rotating fixing component. At the same time, the detection component is used to cooperate with it to quickly detect the symmetry of the circular workpiece without using expensive precision instruments. The equipment is low in cost and suitable for use in small factories, with good economic benefits.

[0035] 2. The symmetry detection equipment for mechanical parts processing can adjust the position of the detection component by setting a lifting component and a transverse moving component, so that the detection component can be used for circular workpieces of different sizes, which greatly improves the use range of the equipment and is conducive to practical application and operation;

[0036] 3. The symmetry detection equipment for machining mechanical parts has various functions by setting up detection components that can detect the symmetry and end face verticality of circular workpieces, so there is no need to purchase additional instruments for measuring the end face verticality, which further saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the first viewing angle structure of the present invention in the state of measuring symmetry;

[0038] Figure 2 It is a schematic diagram of the second viewing angle structure in the symmetry measurement state of the present invention;

[0039] Figure 3 This is a schematic diagram of the first viewing angle structure of the present invention when measuring the verticality of the end surface;

[0040] Figure 4 It is a schematic diagram of the second viewing angle structure of the present invention when measuring the verticality of the end surface;

[0041] Figure 5 It is a schematic diagram of the split structure of the rotating and fixing assembly of the present invention;

[0042] Figure 6 It is a schematic diagram of the structure of the lifting assembly, the lateral movement assembly and the detection assembly from the first perspective of the present invention;

[0043] Figure 7 It is a schematic diagram of the structure of the lifting assembly, the lateral movement assembly and the detection assembly from a second viewing angle of the present invention;

[0044] Figure 8 This is a schematic diagram of the split structure of the lifting assembly, the lateral movement assembly and the detection assembly of the present invention from the first perspective;

[0045] Fig. 9 It is a schematic diagram of the split structure of the lifting assembly, the lateral movement assembly and the detection assembly of the present invention from a second viewing angle;

[0046] Fig.10 It is a schematic diagram of the internal structure of the fixing seat and the round box of the present invention.

[0047] In the figure:

[0048] 1. Workbench; 2. Round workpiece; 3. Fixed axis;

[0049] Rotating fixed components: 4, fixed plate; 5, cylinder; 6, moving plate; 7, motor; 8, three-jaw chuck; 9, rotating rod;

[0050] Lifting assembly: 10, horizontal plate; 11, plane; 12, first screw;

[0051] Transverse shift assembly: 13, transverse shift plate; 14, second screw;

[0052] Detection components: 15, rotating shaft; 16, threaded hole; 17, third screw; 18, fixing seat; 19, detection rod; 20, teeth; 21, detection roller; 22, round box; 23, dial; 24, gear; 25, pointer;

[0053] 26. Connecting plate; 27. Spring; 28. Support leg; 29. ​​Reinforcement plate; 30. Slide rail; 31. Slide groove; 32. Control panel. DETAILED DESCRIPTION

[0054] The present invention will be further described in detail below through the accompanying drawings and examples.

[0055] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The embodiment of the present invention provides a symmetry detection device for machining mechanical parts, including a workbench 1, and support legs 28 are installed at the four corners of the bottom of the workbench 1, and the support legs 28 can be used to stably support the workbench 1. A rotating fixed component is provided at one end of the top of the workbench 1, and a circular workpiece 2 is fixed on the rotating fixed component. The rotating fixed component is used to drive the circular workpiece 2 to rotate. A fixed shaft 3 is installed on the top of the workbench 1, and a reinforcing plate 29 is installed equidistantly between the outer side of the bottom of the fixed shaft 3 and the top of the workbench 1. The reinforcing plate 29 can increase the connection stability between the fixed shaft 3 and the workbench 1.

[0056] The outside of the fixed shaft 3 is provided with a lifting assembly, a lateral movement assembly is provided on the lifting assembly, and a detection assembly is provided on the lateral movement assembly. The lifting assembly is used to drive the lateral movement assembly and the detection assembly to lift up and down, and the lateral movement assembly is used to drive the detection assembly to move horizontally. The detection assembly is used to detect the symmetry and end face verticality of the circular workpiece 2. By setting a rotating fixed assembly, the circular workpiece 2 can be fixed and driven to rotate. At the same time, the detection assembly is used to cooperate with it, so that the symmetry of the circular workpiece 2 can be quickly detected without the use of expensive precision instruments. The equipment is low in cost and suitable for small factories to put into use, with good economic benefits; at the same time, by setting a lifting assembly to cooperate with the lateral movement assembly, the position of the detection assembly can be adjusted, so that the detection assembly can be used for circular workpieces 2 of different sizes, which greatly improves the use range of the equipment and is conducive to practical application and operation; in addition, by setting a detection assembly that can detect the symmetry and end face verticality of the circular workpiece 2, the equipment has various functions, so there is no need to purchase additional instruments for measuring the end face verticality, which further saves costs.

[0057] Reference Figure 5 In one aspect of this embodiment, the rotating fixing assembly includes a fixing plate 4, a cylinder 5, a moving plate 6, a motor 7, a three-jaw chuck 8 and a rotating rod 9.

[0058] The fixed plate 4 is installed at one end of the top of the workbench 1, and the cylinder 5 is installed on the outside of the fixed plate 4. The fixed plate 4 can be used to better install and fix the cylinder 5. The piston rod of the cylinder 5 passes through the fixed plate 4, and the movable plate 6 is fixed on the piston rod of the cylinder 5. By controlling the cylinder 5 to work, the movable plate 6 can be driven to move horizontally by the operation of its piston rod. Two slide rails 30 are installed on the top of the workbench 1, and two slide grooves 31 used in conjunction with the slide rails 30 are provided at the bottom of the movable plate 6. The slide grooves 31 are all slidably connected with the corresponding slide rails 30. The cooperation between the slide grooves 31 and the slide rails 30 can make the movable plate 6 move more stably. The motor 7 is installed on the outside of the movable plate 6, and the three-jaw chuck 8 is installed on the side of the movable plate 6 away from the motor 7. The output shaft of the motor 7 passes through the movable plate 6 and is fixedly connected with the three-jaw chuck 8. By controlling the motor 7 to work, the three-jaw chuck 8 can be driven to rotate. The rotating rod 9 is clamped on the three-jaw chuck 8, and the circular workpiece 2 is installed on the end of the rotating rod 9 away from the three-jaw chuck 8. The rotation of the three-jaw chuck 8 can drive the rotating rod 9 and the circular workpiece 2 to rotate, so as to facilitate the detection operation. When detection is required, the rotating rod 9 used in conjunction with the circular workpiece 2 is clamped and fixed on the three-jaw chuck 8, and then the cylinder 5 is controlled to work, and the piston rod is used to drive the moving plate 6 to move horizontally, so that the circular workpiece 2 moves to a position used in conjunction with the detection component, and then the detection component can be adjusted. After the adjustment of the detection component is completed, the motor 7 is controlled to work to drive the three-jaw chuck 8 to rotate. The rotation of the three-jaw chuck 8 can drive the rotating rod 9 and the circular workpiece 2 to rotate, so as to facilitate the detection operation.

[0059] A control panel 32 is installed on the top of the workbench 1 and on one side of the fixed plate 4. The cylinder 5, the motor 7 and the three-jaw chuck 8 are all electrically connected to the control panel 32. The control panel 32 can be used to control the operation of the entire equipment.

[0060] Reference Figure 6 , Figure 7 , Figure 8 and Fig. 9 In one aspect of this embodiment, the lifting assembly includes a horizontal plate 10, two planes 11 and a first screw 12.

[0061] The transverse plate 10 slides on the outside of the fixed axis 3. The two planes 11 are respectively provided on both sides of the fixed axis 3. The first screw 12 is threadedly connected to one side of the transverse plate 10, and one end of the first screw 12 passes through the transverse plate 10 and contacts the outside of one of the planes 11. By utilizing the effect of the plane 11, the height position of the transverse plate 10 can be better fixed by utilizing the first screw 12. When it is necessary to adjust the height position of the detection component, the first screw 12 is loosened so that one end thereof no longer contacts the plane 11, and then the height position of the transverse plate 10, the transverse movement component and the detection component can be adjusted. After the adjustment is completed, the first screw 12 is tightened so that one end thereof contacts the plane 11 again, and the fixing operation of the position of the transverse plate 10 can be completed.

[0062] Reference Figure 6 , Figure 7 , Figure 8 and Fig. 9 In one aspect of this embodiment, the transverse movement assembly includes a transverse movement plate 13 and a second screw 14.

[0063] The transverse plate 13 slides on the outside of the transverse plate 10, and the second screw 14 is threadedly connected to the top of the transverse plate 13. The bottom of the second screw 14 passes through the transverse plate 13 and contacts the top of the transverse plate 10. When the transverse position of the detection component needs to be adjusted, the second screw 14 can be loosened so that one end of the second screw no longer contacts the top of the transverse plate 10, and then the transverse position of the transverse plate 13 and the detection component can be moved and adjusted. After adjusting to a suitable position, the second screw 14 can be tightened so that one end of the second screw contacts the top of the transverse plate 10 again, thereby completing the fixing operation of the transverse plate 13.

[0064] Reference Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 In one aspect of this embodiment, the detection assembly includes a rotating shaft 15, two threaded holes 16, a third screw 17, a fixing seat 18, a detection rod 19, teeth 20, a detection roller 21, a round box 22, a dial 23, a gear 24 and a pointer 25.

[0065] The rotating shaft 15 is rotatably connected to one side of the transverse plate 13, and the two threaded holes 16 are both opened on the outside of the rotating shaft 15. The angle between the two threaded holes 16 is ninety degrees, so that the rotating shaft 15 can accurately rotate ninety degrees. The third screw 17 is threadedly connected to one side of the transverse plate 13, and one end of the third screw 17 extends to the inside of one of the threaded holes 16 and is threadedly connected thereto. The cooperation between the third screw 17 and the threaded hole 16 can fix the rotation position of the rotating shaft 15, so as to facilitate the adjustment of the equipment to two detection states. The fixed seat 18 is installed on the end of the rotating shaft 15 away from the transverse plate 13, and the detection rod 19 slides inside the fixed seat 18, and the teeth 20 are equidistantly installed on the outside of the detection rod 19. The detection roller 21 is rotatably connected to the bottom of the detection rod 19, and the detection roller 21 can be used to contact the outer surface of the circular workpiece 2 to be detected. A connecting plate 26 is fixedly connected to one side of the detection rod 19, and a spring 27 is installed between the connecting plate 26 and the fixed seat 18. By means of the cooperation between the spring 27 and the connecting plate 26, the detection rod 19 always has a force that can move it toward the circular workpiece 2, so as to facilitate the subsequent end face verticality detection operation of the circular workpiece 2. The round box 22 is fixed on the side of the fixed seat 18 away from the rotating shaft 15, the dial 23 is arranged on the outside of the round box 22, the gear 24 is rotatably connected to the inside of the round box 22, and the central axis of the gear 24 extends to the outside of the round box 22 and is located inside the dial 23. The gear 24 is meshed with the teeth 20, and the meshing between the teeth 20 and the gear 24 makes it possible to drive the gear 24 to rotate while the detection rod 19 moves. The pointer 25 is fixed on the outside of the central axis of the gear 24 and is used in conjunction with the dial 23. By means of the cooperation between the pointer 25 and the dial 23, the rotation angle of the gear 24 can be better indicated.When it is necessary to detect the symmetry of the circular workpiece 2, the detection rod 19 can be pulled upwards, and the spring 27 can be squeezed by the connecting plate 26. At the same time, the detection roller 21 at the bottom of the detection rod 19 is moved to the upper position of the circular workpiece 2 through the transverse movement component, and then the detection rod 19 is released. Under the action of gravity and the elastic force of the spring 27, the detection roller 21 at the bottom of the detection rod 19 is in conflict with the outer circumference of the circular workpiece 2. At this time, the position of the pointer 25 on the dial 23 is observed and recorded, and then the circular workpiece 2 is controlled to rotate by the rotating fixing component, and the position change of the pointer 25 on the dial 23 is observed. If the change is obvious, it indicates that the symmetry of the circular workpiece 2 is unqualified. On the contrary, if there is no change or the change is within the specified range, it indicates that the symmetry of the circular workpiece 2 is qualified. When it is necessary to detect the verticality of the end face of the circular workpiece 2, the third screw 17 can be loosened to disengage one end of the third screw from the inside of the threaded hole 16, and then the shaft 15 can be rotated. The shaft 15 can rotate while it is rotating. Drive the fixing seat 18 and the round box 22 to rotate ninety degrees, then tighten the third screw 17 so that one end of the third screw 17 enters the inside of another threaded hole 16, then the end face verticality detection operation can be started, then pull the detection rod 19, and use the connecting plate 26 to squeeze the spring 27, and at the same time use the transverse movement component and the lifting component to adjust the position of the detection rod 19 so that the detection roller 21 at one end of the detection rod 19 moves to one side of the circular workpiece 2, and then release the detection rod 19. Under the elastic force of the spring 27, the detection roller 21 at one end of the detection rod 19 conflicts with the end face of the circular workpiece 2. At this time, observe and record the position of the pointer 25 on the dial 23, and then control the circular workpiece 2 to rotate by rotating the fixing component, and observe the position change of the pointer 25 on the dial 23. If the change is obvious, it means that the end face verticality of the circular workpiece 2 is unqualified. On the contrary, if there is no change or the change is within the specified range, it means that the end face verticality of the circular workpiece 2 is qualified.

[0066] Working principle:

[0067] When in use, the device is stably placed in a designated position using the support legs 28, and then the device is powered on;

[0068] When inspection is required, the circular workpiece 2 is first mounted on the rotating rod 9, and the rotating rod 9 used in conjunction with the circular workpiece 2 is clamped and fixed on the three-jaw chuck 8, and then the cylinder 5 is controlled to work through the control panel 32, and the piston rod thereof is used to drive the moving plate 6 to move horizontally, so that the circular workpiece 2 is moved to a position for use with the inspection component;

[0069] When it is necessary to detect the symmetry of the circular workpiece 2, first adjust the position of the detection assembly, pull the detection rod 19 upward, and use the connecting plate 26 to squeeze the spring 27, and at the same time move the detection roller 21 at the bottom of the detection rod 19 to the upper position of the circular workpiece 2 through the transverse movement assembly. The specific operation is as follows: loosen the second screw 14 so that one end of it no longer contacts the top of the transverse plate 10, and then move and adjust the transverse position of the transverse plate 13 and the detection assembly. After adjusting to the appropriate position, tighten the second screw 14 so that one end of it contacts the top of the transverse plate 10 again, thereby completing the fixing operation of the transverse plate 13 and the detection assembly position;

[0070] Then, the detection rod 19 is loosened, and under the action of gravity and the elastic force of the spring 27, the detection roller 21 at the bottom of the detection rod 19 is in conflict with the outer circumference of the circular workpiece 2. Figure 1 and Figure 2 As shown, at this time, the position of the pointer 25 on the scale plate 23 is observed and recorded, and then the motor 7 is controlled to work through the control panel 32 to drive the three-jaw chuck 8 to rotate. The rotation of the three-jaw chuck 8 can drive the rotating rod 9 and the circular workpiece 2 to rotate, and the position change of the pointer 25 on the scale plate 23 is observed. If the change is obvious, it means that the symmetry of the circular workpiece 2 is unqualified. On the contrary, if there is no change or the change is within the specified range, it means that the symmetry of the circular workpiece 2 is qualified.

[0071] When it is necessary to detect the verticality of the end face of the circular workpiece 2, the third screw 17 can be loosened to disengage one end of the third screw 17 from the inside of the threaded hole 16, and then the shaft 15 can be rotated. While rotating, the shaft 15 can drive the fixing seat 18 and the round box 22 to rotate ninety degrees, and then the third screw 17 is tightened to make one end of the third screw 17 enter the inside of another threaded hole 16. At this time, the end face verticality detection operation can be started, and then the detection rod 19 is pulled, and the spring 27 is squeezed by the connecting plate 26. At the same time, the position of the detection rod 19 is adjusted by the lateral movement assembly and the lifting assembly, so that the detection roller 21 at one end of the detection rod 19 moves to one side of the circular workpiece 2, such as Figure 3 and Figure 4As shown, the detection rod 19 is then released, and under the elastic force of the spring 27, the detection roller 21 at one end of the detection rod 19 is in conflict with the end face of the circular workpiece 2. At this time, the position of the pointer 25 on the scale plate 23 is observed and recorded, and then the motor 7 is controlled by the control panel 32 to work, driving the three-jaw chuck 8 to rotate. The rotation of the three-jaw chuck 8 can drive the rotating rod 9 and the circular workpiece 2 to rotate, and the position change of the pointer 25 on the scale plate 23 is observed. If the change is obvious, it means that the verticality of the end face of the circular workpiece 2 is unqualified. On the contrary, if there is no change or the change is within the specified range, it means that the verticality of the end face of the circular workpiece 2 is qualified.

[0072] By setting up a rotating fixing component, the circular workpiece 2 can be fixed and driven to rotate, and by using the detection component in cooperation with it, the symmetry of the circular workpiece 2 can be quickly detected without the use of expensive precision instruments. The equipment is low-cost, suitable for use in small factories, and has good economic benefits; at the same time, by setting up a lifting component in cooperation with a transverse movement component, the position of the detection component can be adjusted, so that the detection component can be suitable for circular workpieces 2 of different sizes, which greatly improves the use range of the equipment and is beneficial to practical application and operation; in addition, by setting up a detection component that can detect the symmetry and end face verticality of the circular workpiece 2, the equipment is made multifunctional, so that there is no need to purchase additional instruments for measuring the end face verticality, which further saves costs.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A symmetry detection device for machining mechanical parts, comprising a workbench (1), characterized in that: A rotating fixed component is provided at one end of the top of the workbench (1), a circular workpiece (2) is fixed on the rotating fixed component, and the rotating fixed component is used to drive the circular workpiece (2) to rotate. A fixed shaft (3) is installed on the top of the workbench (1); A lifting component is arranged on the outer side of the fixed shaft (3), a lateral movement component is arranged on the lifting component, and a detection component is arranged on the lateral movement component; The lifting assembly is used to drive the transverse movement assembly and the detection assembly to move up and down, and the transverse movement assembly is used to drive the detection assembly to move laterally; The detection component is used to detect the symmetry and end face verticality of the circular workpiece (2); The rotating fixing assembly comprises a fixing plate (4), a cylinder (5), a moving plate (6), a motor (7), a three-jaw chuck (8) and a rotating rod (9); The fixed plate (4) is mounted on one end of the top of the workbench (1); the cylinder (5) is mounted on the outside of the fixed plate (4); the piston rod of the cylinder (5) passes through the fixed plate (4); the movable plate (6) is fixed on the piston rod of the cylinder (5); the motor (7) is mounted on the outside of the movable plate (6); the three-jaw chuck (8) is mounted on a side of the movable plate (6) away from the motor (7); the output shaft of the motor (7) passes through the movable plate (6) and is fixedly connected to the three-jaw chuck (8); the rotating rod (9) is clamped on the three-jaw chuck (8); and the circular workpiece (2) is mounted on one end of the rotating rod (9) away from the three-jaw chuck (8); The lifting assembly comprises a horizontal plate (10), two planes (11) and a first screw (12); The transverse plate (10) slides on the outside of the fixed shaft (3), the two planes (11) are respectively arranged on both sides of the fixed shaft (3), the first screw (12) is threadedly connected to one side of the transverse plate (10), and one end of the first screw (12) passes through the transverse plate (10) and abuts against the outside of one of the planes (11); The transverse movement assembly comprises a transverse movement plate (13) and a second screw (14); The transverse plate (13) slides on the outer side of the transverse plate (10), the second screw (14) is threadedly connected to the top of the transverse plate (13), and the bottom of the second screw (14) passes through the transverse plate (13) and contacts the top of the transverse plate (10); The detection assembly comprises a rotating shaft (15), two threaded holes (16), a third screw (17), a fixing seat (18), a detection rod (19), teeth (20), a detection roller (21), a round box (22), a dial (23), a gear (24) and a pointer (25); The rotating shaft (15) is rotatably connected to one side of the transverse plate (13), the two threaded holes (16) are both opened on the outside of the rotating shaft (15), the third screw (17) is threadedly connected to one side of the transverse plate (13), one end of the third screw (17) extends into the inside of one of the threaded holes (16) and is threadedly connected thereto, the fixing seat (18) is installed on the end of the rotating shaft (15) away from the transverse plate (13), the detection rod (19) slides inside the fixing seat (18), the teeth (20) are equidistantly installed on the outside of the detection rod (19), and the The detection roller (21) is rotatably connected to the bottom of the detection rod (19); the round box (22) is fixed on a side of the fixing seat (18) away from the rotating shaft (15); the scale plate (23) is arranged on the outside of the round box (22); the gear (24) is rotatably connected to the inside of the round box (22); the central axis of the gear (24) extends to the outside of the round box (22) and is located inside the scale plate (23); the gear (24) is meshed with the teeth (20); and the pointer (25) is fixed on the outside of the central axis of the gear (24) and is used in conjunction with the scale plate (23); The included angle between the two threaded holes (16) is ninety degrees.

2. The symmetry detection device for mechanical parts processing according to claim 1 is characterized in that: Support legs (28) are installed at the four corners of the bottom of the workbench (1), and reinforcing plates (29) are installed equidistantly between the outer side of the bottom of the fixed shaft (3) and the top of the workbench (1).

3. The symmetry detection device for mechanical parts processing according to claim 1, characterized in that: Two slide rails (30) are installed on the top of the workbench (1), and two slide grooves (31) for use with the slide rails (30) are provided on the bottom of the movable plate (6), and the slide grooves (31) are slidably connected to the corresponding slide rails (30).

4. The symmetry detection device for machining mechanical parts according to claim 1, characterized in that: A connecting plate (26) is fixedly connected to one side of the detection rod (19), and a spring (27) is installed between the connecting plate (26) and the fixing seat (18).

5. The symmetry detection device for mechanical parts processing according to claim 1, characterized in that: A control panel (32) is installed on the top of the workbench (1) and on one side of the fixed plate (4); the cylinder (5), the motor (7) and the three-jaw chuck (8) are all electrically connected to the control panel (32).

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