Laser positioning device for molding press and use method of laser positioning device

Abstract

The invention discloses a laser positioning device for a molding press and a using method of the laser positioning device, and relates to the technical field of molding press positioning, the laser positioning device comprises a molding press body, supports are fixedly connected to the two sides of the bottom of the molding press body, supporting frames are arranged on the front face and the back face of the molding press body, and shading glass is fixedly connected to inner cavities of the supporting frames. The support is arranged and used for supporting the molding press body, the supporting frame is used for fixing the shading glass, and the shading glass is dark and can reduce light propagation, so that a certain shading effect can be achieved, the influence of external light on an internal working area of the molding press body is reduced, and the positioning accuracy is improved; the placing block is used for placing the workpiece to be machined, the positioning mechanism is used for adjusting the position of the placing block so as to achieve the purpose of accurate positioning, and the damping mechanism can reduce the vibration amplitude of the molding press body during operation, so that the influence of vibration on normal operation of equipment is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of molding machine positioning, and in particular to a laser positioning device for a molding machine and a use method thereof. Background Art

[0002] A compression molding machine is a machine used to press materials into a specific shape under high temperature and high pressure. It is widely used in the manufacture of various products, such as automotive parts, electronic product housings, medical devices, etc. The working principle of the compression molding machine is based on heating the material to a certain temperature to soften or melt it, and then applying pressure through the mold to press it into the desired shape and size;

[0003] Laser positioning technology for molding machines is a technology that uses laser measurement and positioning systems to improve mold centering accuracy and product quality. Laser positioning can help ensure accurate alignment of molds, reduce errors in the production process, and improve product consistency and accuracy. However, the accuracy of the laser positioning system may be affected by many factors, such as the intensity of ambient light. At the same time, the vibration of the molding machine may also affect the stability and accuracy of the laser positioning system, thereby affecting the normal fit of the mold, resulting in errors in product size and reducing product quality. Summary of the invention

[0004] The purpose of the present invention is to provide a laser positioning device for a molding machine and a method of using the same, which has the advantages of precise positioning and shock absorption, and solves the problem that the accuracy of the laser positioning system may be affected by various factors, such as the light intensity of the application environment. At the same time, the vibration of the molding machine may also affect the stability and accuracy of the laser positioning system, thereby affecting the normal fit of the mold, resulting in errors in product size and reducing product quality.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser positioning device for a molding machine and a method of using the same, comprising a molding machine body, both sides of the bottom of the molding machine body are fixedly connected with supports, the front and back of the molding machine body are provided with support frames, the inner cavity of the support frame is fixedly connected with a shading glass, the rear end of the support frame is fixedly connected to the back of the molding machine body, both sides of the front of the molding machine body are fixedly connected with limit frames, the two sides of the support frame at the front end extend to the inner cavities of the two limit frames respectively, and are slidably connected to the inner cavities, the inner cavity of the molding machine body is provided with a placement block, the surface of the placement block is provided with a positioning mechanism, the bottom of the support is provided with a shock absorbing mechanism, and the positioning mechanism includes a movable The cam is connected to the rear portion of the movable frame by a spring, and the cam is connected to the rear portion of the movable frame by a spring.

[0006] Preferably, a fixed frame is fixedly connected to the bottom of the inner cavity of the molding machine body, and a second electric push rod is fixedly connected to the front and rear ends of the left side of the inner cavity of the fixed frame, and the output end of the second electric push rod is fixedly connected to the left side of the movable frame.

[0007] Preferably, a laser transmitter is provided at the lower end of the left side of the inner cavity of the molding machine body, a laser receiving sensor is provided at the lower end of the right side of the inner cavity of the molding machine body, a laser rangefinder is provided at the upper end of the left side of the inner cavity of the molding machine body, and a plc controller is provided at the upper end of the right side of the inner cavity of the molding machine body, the output end of the laser rangefinder is electrically connected to the input end of the plc controller, and the output end of the plc controller is electrically connected to the input ends of the first electric push rod and the second electric push rod.

[0008] Preferably, the front end and the rear end of the top of the bottom plate are provided with a receiving groove, the inner cavity of the receiving groove is fixedly connected to a positioning rod, the surface of the positioning rod is slidably connected to a slider, the top of the slider is movably connected to an adjusting rod via a rotating shaft, the end of the adjusting rod away from the slider is movably connected to a side of the rotating plate via a rotating shaft, the surface of the positioning rod is sleeved with a first shock-absorbing spring, one end of the first shock-absorbing spring is fixedly connected to the inner wall of the receiving groove, and the other end of the first shock-absorbing spring is fixedly connected to one side of the slider.

[0009] Preferably, an accommodating cavity is provided on the front and back sides of the inner cavity of the support and at the upper end of the slide groove, the inner cavity of the accommodating cavity is slidably connected with a movable block, the top of the movable block is fixedly connected with a second shock-absorbing spring, the top of the second shock-absorbing spring is fixedly connected to the inner wall of the accommodating cavity, the bottom of the movable block is fixedly connected with a connecting rope, the connecting rope extends to the inner cavity of the support away from the end of the movable block and is fixedly connected to one side of the rotating plate, anti-slip grooves are provided on both sides of the inner cavity of the slide groove, anti-slip blocks are fixedly connected on both sides of the pulley, one side of the anti-slip block extends to the inner cavity of the anti-slip groove and is slidably connected to the inner cavity of the anti-slip groove, and guide units are provided on the front and back sides of the inner cavity of the support, the guide unit includes four guide wheels and two frames, and the inner cavity of the frame is also provided with two guide wheels.

[0010] Preferably, the inner cavity of the limit frame on the right is slidably connected with a clamping column, a clamping slot is opened on the right side of the support frame at the front end, the left end of the clamping column extends to the inner cavity of the clamping slot and engages with the inner cavity of the clamping slot, a support plate is fixedly connected to the right side of the front face of the molding machine body, a pull rod is slidably connected to the inner cavity of the support plate, the left end of the pull rod is fixedly connected to the clamping column, a compression spring is sleeved on the surface of the pull rod, the left end of the compression spring is fixedly connected to the clamping column, and the right end of the compression spring is fixedly connected to the support plate.

[0011] Preferably, the method of use is as follows:

[0012] A. When positioning the workpiece, the laser transmitter is used to emit laser, the laser receiving sensor receives laser, the laser rangefinder measures the deviation distance, and transmits the data to the PLC controller. The PLC controller starts the first electric push rod or the second electric push rod according to the data. The output end of the first electric push rod contracts to adjust the front and rear position of the workpiece, and the output end of the second electric push rod contracts to adjust the left and right position of the workpiece. Since the shading glass is darker, the influence of external light on the internal working area of ​​the molding machine body can be reduced, thereby improving the accuracy of positioning. When the workpiece needs to be taken, first pull the pull rod to the right, and the pull rod drives the clamping column to move to the right. When the clamping column moves, it squeezes the compression spring and deforms the compression spring. Then push the front support frame upward to make it move upward in the inner cavity of the two limit frames. After moving to a certain position, release the pull rod. At this time, the pressure on the compression spring disappears and resets. The reset elastic force of the compression spring can drive the clamping column to reset, so that it is inserted into the inner cavity of the card slot and engages with it, thereby positioning the front support frame for the workpiece to be taken;

[0013] B. When the molding machine body vibrates during operation, the vibration will cause the height of the molding machine body to shake, causing the pulley to slide in the inner cavity of the rotating plate. When the pulley slides, the angle of the rotating plate can be adjusted. When the angle of the rotating plate changes, the adjusting rod will also be driven to deflect the angle of the adjusting rod. When the angle of the adjusting rod is deflected, the slider can be driven to slide in the inner cavity of the accommodating groove. While the slider slides, it will compress the first shock-absorbing spring and cause the first shock-absorbing spring to deform. When the angle of the rotating plate is deflected, the movable block can be pulled by the connecting rope to slide in the inner cavity of the accommodating cavity. When the movable block slides, the second shock-absorbing spring can be stretched and caused to deform. The reset elastic force of the first shock-absorbing spring and the second shock-absorbing spring can cooperate with the damper to buffer the molding machine body, thereby reducing the vibration amplitude of the molding machine body, and further reducing the impact of vibration on the operation of the equipment. In this process, the multiple guide wheels of the guide unit cooperate to support and guide the connecting rope, and the anti-slip groove and the anti-slip block cooperate to prevent the pulley from falling off from the inner cavity of the rotating plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides a support for supporting the molding machine body, and a support frame for fixing the shading glass. Since the shading glass itself is darker, it can reduce the propagation of light and thus can play a certain shading role, reducing the influence of external light on the internal working area of ​​the molding machine body, thereby improving the accuracy of positioning. A limit frame is provided to support and limit the front end support frame, and a placement block is provided to place the workpiece to be processed. The positioning mechanism is used to adjust the position of the placement block to achieve the purpose of precise positioning. The shock absorbing mechanism can reduce the vibration amplitude of the molding machine body during operation, thereby reducing the influence of vibration on the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the movable frame and the fixed frame in the separated state of the present invention;

[0018] Figure 3 It is a schematic diagram of the main plane structure of the molding machine body of the present invention;

[0019] Figure 4 It is a schematic diagram of the side cross-sectional structure of the support of the present invention;

[0020] Figure 5 It is a schematic structural diagram of the separated state of the clamping column and the clamping slot of the present invention;

[0021] Figure 6 For the present invention Figure 4 A partial enlarged view of point A in the middle.

[0022] In the figure: 1, molding machine body; 2, support; 3, support frame; 4, shading glass; 5, limit frame; 6, placement block; 7, positioning mechanism; 701, movable frame; 702, first electric push rod; 703, fixed frame; 704, second electric push rod; 705, laser transmitter; 706, laser receiving sensor; 707, laser rangefinder; 708, plc controller; 8, shock absorbing mechanism; 801, bottom plate; 802, damper; 80 3. Slide groove; 804. Rotating plate; 805. Pulley; 806. Accommodating groove; 807. Positioning rod; 808. Sliding block; 809. Adjusting rod; 810. First shock-absorbing spring; 811. Accommodating chamber; 812. Movable block; 813. Second shock-absorbing spring; 814. Connecting rope; 815. Anti-slip groove; 816. Anti-slip block; 817. Guide unit; 9. Clamping column; 10. Clamping groove; 11. Supporting plate; 12. Pull rod; 13. Compression spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1

[0025] like Figure 1-6As shown, it is the first embodiment of the present invention, which provides a laser positioning device for a molding machine and a method of using the same, including a molding machine body 1, both sides of the bottom of the molding machine body 1 are fixedly connected with a support 2, the front and back of the molding machine body 1 are provided with a support frame 3, the inner cavity of the support frame 3 is fixedly connected with a shading glass 4, the rear end support frame 3 is fixedly connected to the back of the molding machine body 1, both sides of the front of the molding machine body 1 are fixedly connected with a limit frame 5, both sides of the front end support frame 3 extend to the inner cavity of the two limit frames 5 respectively, and are slidably connected with the inner cavity, the inner cavity of the molding machine body 1 is provided with a placement block 6, the surface of the placement block 6 is provided with a positioning mechanism 7, the bottom of the support 2 is provided with a shock absorbing mechanism 8, and the positioning mechanism 7 includes a movable frame 701, and the movable frame 701 is provided in the inner cavity of the molding machine body 1 The bottom of the movable frame 701 is provided with a placement block 6 in the inner cavity of the movable frame 701, and is slidably connected to the inner cavity of the movable frame 701. The back of the inner cavity of the movable frame 701 is fixedly connected with a first electric push rod 702, and the output end of the first electric push rod 702 is fixedly connected with the back of the placement block 6. The shock absorbing mechanism 8 includes a bottom plate 801, which is arranged at the bottom of the support 2. A damper 802 is fixedly connected at the center of the top of the bottom plate 801. The top of the damper 802 is fixedly connected to the top of the inner cavity of the support 2. The front and rear ends of the top of the bottom plate 801 are movably connected with a rotating plate 804 through a rotating shaft. A slide groove 803 is provided on the front and back of the inner cavity of the support 2. The top of the rotating plate 804 extends to the inner cavity of the slide groove 803 and is fixedly connected with a pulley 805. The pulley 805 is slidably connected to the inner cavity of the slide groove 803.

[0026] like Figure 1-6 As shown, the support 2 is used to support the molding machine body 1, and the support frame 3 is used to fix the shading glass 4. Since the shading glass 4 itself is darker, it can reduce the propagation of light and thus can play a certain shading role, reducing the impact of external light on the internal working area of ​​the molding machine body 1, thereby improving the accuracy of positioning. The limit frame 5 is used to support and limit the front end support frame 3, the placement block 6 is used to place the workpiece to be processed, and the positioning mechanism 7 is used to adjust the position of the placement block 6 to achieve the purpose of precise positioning. The shock absorbing mechanism 8 can reduce the vibration amplitude of the molding machine body 1 during operation, thereby reducing the impact of vibration on the normal operation of the equipment.

[0027] Example 2

[0028] Reference Figure 2 , 3 and 5, which are the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0029] In this embodiment, a fixed frame 703 is fixedly connected to the bottom of the inner cavity of the molding machine body 1, and a second electric push rod 704 is fixedly connected to the front and rear ends of the left side of the inner cavity of the fixed frame 703. The output end of the second electric push rod 704 is fixedly connected to the left side of the movable frame 701.

[0030] A laser transmitter 705 is provided at the lower end of the left side of the inner cavity of the molding machine body 1, a laser receiving sensor 706 is provided at the lower end of the right side of the inner cavity of the molding machine body 1, a laser rangefinder 707 is provided at the upper end of the left side of the inner cavity of the molding machine body 1, and a plc controller 708 is provided at the upper end of the right side of the inner cavity of the molding machine body 1. The output end of the laser rangefinder 707 is electrically connected to the input end of the plc controller 708, and the output end of the plc controller 708 is electrically connected to the input end of the first electric push rod 702 and the second electric push rod 704.

[0031] The inner cavity of the right limit frame 5 is slidably connected with a clamping column 9, and a clamping slot 10 is opened on the right side of the front support frame 3. The left end of the clamping column 9 extends to the inner cavity of the clamping slot 10 and engages with the inner cavity of the clamping slot 10. A support plate 11 is fixedly connected to the right side of the front of the molding machine body 1, and a pull rod 12 is slidably connected to the inner cavity of the support plate 11. The left end of the pull rod 12 is fixedly connected to the clamping column 9. A compression spring 13 is sleeved on the surface of the pull rod 12. The left end of the compression spring 13 is fixedly connected to the clamping column 9, and the right end of the compression spring 13 is fixedly connected to the support plate 11.

[0032] like Figure 2 , 3 As shown in Figure 5, when positioning the workpiece, the laser transmitter 705 is used to emit laser, the laser receiving sensor 706 receives laser, the laser rangefinder 707 measures the deviation distance, and transmits the data to the plc controller 708, the plc controller 708 starts the first electric push rod 702 or the second electric push rod 704 according to the data, the output end of the first electric push rod 702 contracts, and the front and rear positions of the workpiece can be adjusted, and the output end of the second electric push rod 704 contracts, and the left and right positions of the workpiece can be adjusted. Since the shading glass 4 is dark, the shadow of the external light on the internal working area of ​​the molding machine body 1 can be reduced. The pull rod 12 is pulled to the right to improve the accuracy of positioning. When the workpiece needs to be picked up, the pull rod 12 is first pulled to the right. The pull rod 12 drives the clamping column 9 to move to the right. The clamping column 9 will squeeze the compression spring 13 and deform the compression spring 13 when moving. Then the front end support frame 3 is pushed upward to make it move upward in the inner cavity of the two limit frames 5. After moving to a certain position, the pull rod 12 is released. At this time, the pressure on the compression spring 13 disappears and resets. The reset elastic force of the compression spring 13 can drive the clamping column 9 to reset, so that it is inserted into the inner cavity of the card slot 10 and engages with it, thereby positioning the front end support frame 3 for the workpiece to be picked up.

[0033] Example 3

[0034] Reference Figure 4 and 6 , which is the third embodiment of the present invention, and this embodiment is based on the previous two embodiments.

[0035] In this embodiment, a receiving groove 806 is provided at the front and rear ends of the top of the bottom plate 801, and a positioning rod 807 is fixedly connected to the inner cavity of the receiving groove 806, and a slider 808 is slidably connected to the surface of the positioning rod 807, and an adjusting rod 809 is movably connected to the top of the slider 808 through a rotating shaft, and one end of the adjusting rod 809 away from the slider 808 is movably connected to a side of the rotating plate 804 through a rotating shaft, and a first shock-absorbing spring 810 is sleeved on the surface of the positioning rod 807, and one end of the first shock-absorbing spring 810 is fixedly connected to the inner wall of the receiving groove 806, and the other end of the first shock-absorbing spring 810 is fixedly connected to one side of the slider 808.

[0036] The front and back sides of the inner cavity of the support 2 and the upper end of the slide groove 803 are provided with a receiving cavity 811, the inner cavity of the receiving cavity 811 is slidably connected with a movable block 812, the top of the movable block 812 is fixedly connected with a second shock absorbing spring 813, the top of the second shock absorbing spring 813 is fixedly connected to the inner wall of the receiving cavity 811, the bottom of the movable block 812 is fixedly connected with a connecting rope 814, the end of the connecting rope 814 away from the movable block 812 extends to the inner cavity of the support 2, and It is fixedly connected to one side of the rotating plate 804, and anti-slip grooves 815 are provided on both sides of the inner cavity of the slide groove 803. Anti-slip blocks 816 are fixedly connected on both sides of the pulley 805. One side of the anti-slip block 816 extends to the inner cavity of the anti-slip groove 815 and is slidably connected to the inner cavity of the anti-slip groove 815. Guide units 817 are provided on the front and back sides of the inner cavity of the support 2. The guide unit 817 includes four guide wheels and two frames, and the inner cavity of the frame is also provided with two guide wheels.

[0037] like Figure 4 and 6As shown, when the molding machine body 1 vibrates during operation, the vibration will cause the height of the molding machine body 1 to shake, causing the pulley 805 to slide in the inner cavity of the rotating plate 804. When the pulley 805 slides, the angle of the rotating plate 804 can be adjusted. When the angle of the rotating plate 804 changes, the adjusting rod 809 will be driven to deflect the angle of the adjusting rod 809. When the angle of the adjusting rod 809 is deflected, the slider 808 can be driven to slide in the inner cavity of the accommodating groove 806. When the slider 808 slides, it will compress the first shock-absorbing spring 810 and cause the first shock-absorbing spring 810 to deform. When the angle of the rotating plate 804 is deflected, the slider 808 can be connected through the mating The rope 814 pulls the movable block 812 to make it slide in the inner cavity of the accommodating cavity 811. When sliding, the movable block 812 can stretch the second shock-absorbing spring 813 and cause the second shock-absorbing spring 813 to deform. The return elastic force of the first shock-absorbing spring 810 and the second shock-absorbing spring 813 can cooperate with the damper 802 to buffer the molding machine body 1, thereby reducing the vibration amplitude of the molding machine body 1, and further reducing the impact of vibration on the operation of the equipment. In this process, the multiple guide wheels of the guide unit 817 cooperate to support and guide the connecting rope 814, and the anti-slip groove 815 and the anti-slip block 816 cooperate to prevent the pulley 805 from falling off from the inner cavity of the rotating plate 804.

[0038] A laser positioning device for a molding machine and a method for using the same, the method for using the same comprising the following steps:

[0039] When positioning the workpiece, the laser transmitter 705 is used to emit laser, the laser receiving sensor 706 receives laser, the laser rangefinder 707 measures the deviation distance and transmits the data to the plc controller 708, the plc controller 708 starts the first electric push rod 702 or the second electric push rod 704 according to the data, the output end of the first electric push rod 702 contracts to adjust the front and rear position of the workpiece, the output end of the second electric push rod 704 contracts to adjust the left and right position of the workpiece, because the shading glass 4 is dark, it can reduce the influence of external light on the internal working area of ​​the molding machine body 1, thereby improving the accuracy of positioning, When taking the workpiece, first pull the pull rod 12 to the right, and the pull rod 12 drives the clamping column 9 to move to the right. When moving, the clamping column 9 will squeeze the compression spring 13 and deform the compression spring 13, and then push the front end support frame 3 upward to make it move upward in the inner cavity of the two limit frames 5. After moving to a certain position, release the pull rod 12. At this time, the pressure on the compression spring 13 disappears and resets. The reset elastic force of the compression spring 13 can drive the clamping column 9 to reset, so that it is inserted into the inner cavity of the card slot 10 and engages with it, thereby positioning the front end support frame 3 for the workpiece to be taken. When the molding machine body 1 vibrates during operation, the vibration will cause the molding The height of the machine body 1 shakes, causing the pulley 805 to slide in the inner cavity of the rotating plate 804. When the pulley 805 slides, the angle of the rotating plate 804 can be adjusted. When the angle of the rotating plate 804 changes, it will also drive the adjusting rod 809 to deflect the angle of the adjusting rod 809. When the angle of the adjusting rod 809 deflects, it can drive the slider 808 to slide in the inner cavity of the accommodating groove 806. When the slider 808 slides, it will compress the first shock-absorbing spring 810 and cause the first shock-absorbing spring 810 to deform. When the angle of the rotating plate 804 deflects, it can pull the movable block 812 by cooperating with the connecting rope 814. , so that it slides in the inner cavity of the accommodating cavity 811. When sliding, the movable block 812 can stretch the second shock-absorbing spring 813 and deform the second shock-absorbing spring 813, and the return elastic force of the first shock-absorbing spring 810 and the second shock-absorbing spring 813 can cooperate with the damper 802 to buffer the molding machine body 1, thereby reducing the vibration amplitude of the molding machine body 1, and further reducing the impact of vibration on the operation of the equipment. In this process, the multiple guide wheels of the guide unit 817 cooperate to support and guide the connecting rope 814, and the anti-slip groove 815 and the anti-slip block 816 cooperate to prevent the pulley 805 from falling off from the inner cavity of the rotating plate 804.

[0040] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] 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 laser positioning device for a molding machine, comprising a molding machine body (1), characterized in that: Both sides of the bottom of the molding machine body (1) are fixedly connected to a support (2); the front and back of the molding machine body (1) are provided with a support frame (3); the inner cavity of the support frame (3) is fixedly connected to a shading glass (4); the rear end of the support frame (3) is fixedly connected to the back of the molding machine body (1); both sides of the front of the molding machine body (1) are fixedly connected to a limit frame (5); the two sides of the front end of the support frame (3) respectively extend to the inner cavities of the two limit frames (5) and are slidably connected to the inner cavities; the inner cavity of the molding machine body (1) is provided with a placement block (6); the surface of the placement block (6) is provided with a positioning mechanism (7); the bottom of the support (2) is provided with a shock absorbing mechanism (8); the positioning mechanism (7) comprises a movable frame (701); the movable frame (701) is arranged at the bottom of the inner cavity of the molding machine body (1); the placement block (6) is located in the inner cavity of the movable frame (701). and is slidably connected to the inner cavity of the movable frame (701); a first electric push rod (702) is fixedly connected to the back of the inner cavity of the movable frame (701); an output end of the first electric push rod (702) is fixedly connected to the back of the placement block (6); the shock absorbing mechanism (8) comprises a bottom plate (801); the bottom plate (801) is arranged at the bottom of the support (2); a damper (802) is fixedly connected to the center of the top of the bottom plate (801); The top of the diaphragm (802) is fixedly connected to the top of the inner cavity of the support (2); the front and rear ends of the top of the bottom plate (801) are movably connected to a rotating plate (804) via a rotating shaft; the front and back ends of the inner cavity of the support (2) are provided with a slide groove (803); the top of the rotating plate (804) extends to the inner cavity of the slide groove (803) and is fixedly connected to a pulley (805); the pulley (805) is slidably connected to the inner cavity of the slide groove (803).

2. A laser positioning device for a molding machine according to claim 1, characterized in that: A fixed frame (703) is fixedly connected to the bottom of the inner cavity of the molding machine body (1), and a second electric push rod (704) is fixedly connected to the front and rear ends of the left side of the inner cavity of the fixed frame (703), and the output end of the second electric push rod (704) is fixedly connected to the left side of the movable frame (701).

3. A laser positioning device for a molding machine according to claim 2, characterized in that: A laser transmitter (705) is arranged at the lower end of the left side of the inner cavity of the molding machine body (1), a laser receiving sensor (706) is arranged at the lower end of the right side of the inner cavity of the molding machine body (1), a laser rangefinder (707) is arranged at the upper end of the left side of the inner cavity of the molding machine body (1), and a plc controller (708) is arranged at the upper end of the right side of the inner cavity of the molding machine body (1), the output end of the laser rangefinder (707) is electrically connected to the input end of the plc controller (708), and the output end of the plc controller (708) is electrically connected to the input ends of the first electric push rod (702) and the second electric push rod (704).

4. The laser positioning device for a molding machine according to claim 1, characterized in that: The front and rear ends of the top of the bottom plate (801) are both provided with a receiving groove (806), the inner cavity of the receiving groove (806) is fixedly connected with a positioning rod (807), the surface of the positioning rod (807) is slidably connected with a slider (808), the top of the slider (808) is movably connected with an adjusting rod (809) via a rotating shaft, the end of the adjusting rod (809) away from the slider (808) is movably connected to a side of the rotating plate (804) via a rotating shaft, the surface of the positioning rod (807) is sleeved with a first shock-absorbing spring (810), one end of the first shock-absorbing spring (810) is fixedly connected to the inner wall of the receiving groove (806), and the other end of the first shock-absorbing spring (810) is fixedly connected to one side of the slider (808).

5. The laser positioning device for a molding machine according to claim 1, characterized in that: The front and back sides of the inner cavity of the support (2) and the upper end of the slide groove (803) are provided with a receiving cavity (811), the inner cavity of the receiving cavity (811) is slidably connected to a movable block (812), the top of the movable block (812) is fixedly connected to a second shock absorbing spring (813), the top of the second shock absorbing spring (813) is fixedly connected to the inner wall of the receiving cavity (811), the bottom of the movable block (812) is fixedly connected to a connecting rope (814), and the end of the connecting rope (814) away from the movable block (812) extends to the support (2). The inner cavity of the support (2) is fixedly connected to one side of the rotating plate (804); both sides of the inner cavity of the slide groove (803) are provided with anti-slip grooves (815); both sides of the pulley (805) are fixedly connected with anti-slip blocks (816); one side of the anti-slip block (816) extends to the inner cavity of the anti-slip groove (815) and is slidably connected to the inner cavity of the anti-slip groove (815); the front and back sides of the inner cavity of the support (2) are provided with guide units (817); the guide unit (817) includes four guide wheels and two frames, and the inner cavity of the frame is also provided with two guide wheels.

6. The laser positioning device for a molding machine according to claim 1, characterized in that: The inner cavity of the right limit frame (5) is slidably connected to a clamping column (9), and a clamping slot (10) is opened on the right side of the front support frame (3). The left end of the clamping column (9) extends to the inner cavity of the clamping slot (10) and is clamped with the inner cavity of the clamping slot (10). The right side of the front of the molding machine body (1) is fixedly connected to a support plate (11), and the inner cavity of the support plate (11) is slidably connected to a pull rod (12), and the left end of the pull rod (12) is fixedly connected to the clamping column (9). The surface of the pull rod (12) is provided with a compression spring (13), and the left end of the compression spring (13) is fixedly connected to the clamping column (9), and the right end of the compression spring (13) is fixedly connected to the support plate (11).

7. The method for using the laser positioning device for a molding machine according to any one of claims 1 to 6, characterized in that: The steps for using it are as follows: A. When positioning the workpiece, the laser transmitter (705) is used to emit laser light, the laser receiving sensor (706) receives laser light, the laser rangefinder (707) measures the deviation distance, and transmits the data to the PLC controller (708). The PLC controller (708) activates the first electric push rod (702) or the second electric push rod (704) according to the data. The output end of the first electric push rod (702) contracts to adjust the front and rear position of the workpiece, and the output end of the second electric push rod (704) contracts to adjust the left and right position of the workpiece. Since the shading glass (4) is dark, the influence of external light on the internal working area of ​​the molding machine body (1) can be reduced, thereby improving the High positioning accuracy. When it is necessary to pick up a workpiece, first pull the pull rod (12) to the right, and the pull rod (12) drives the clamping column (9) to move to the right. When moving, the clamping column (9) squeezes the compression spring (13) and causes the compression spring (13) to deform. Then, the front end support frame (3) is pushed upward to move it upward in the inner cavity of the two limit frames (5). After moving to a certain position, the pull rod (12) is released. At this time, the pressure on the compression spring (13) disappears and resets. The reset elastic force of the compression spring (13) can drive the clamping column (9) to reset, so that it is inserted into the inner cavity of the clamping slot (10) and engages with it, thereby positioning the front end support frame (3) for picking up the workpiece; B. When the molding machine body (1) vibrates during operation, the vibration will cause the height of the molding machine body (1) to shake, causing the pulley (805) to slide in the inner cavity of the rotating plate (804). When the pulley (805) slides, the angle of the rotating plate (804) can be adjusted. When the angle of the rotating plate (804) changes, the adjusting rod (809) will be driven to deflect the angle of the adjusting rod (809). When the angle of the adjusting rod (809) is deflected, the slider (808) can be driven to slide in the inner cavity of the accommodating groove (806). When the slider (808) slides, it will compress the first shock absorbing spring (810) and cause the first shock absorbing spring (810) to deform. When the angle of the rotating plate (804) is deflected, the slider (808) can be adjusted by cooperating with the connecting rope. (814) Pull the movable block (812) to make it slide in the inner cavity of the accommodating cavity (811). When sliding, the movable block (812) can stretch the second shock-absorbing spring (813) and cause the second shock-absorbing spring (813) to deform, and the return elastic force of the first shock-absorbing spring (810) and the second shock-absorbing spring (813) can cooperate with the damper (802) to buffer the molding machine body (1), thereby reducing the vibration amplitude of the molding machine body (1), and further reducing the impact of vibration on the operation of the equipment. In this process, the multiple guide wheels of the guide unit (817) cooperate to support and guide the connecting rope (814), and the anti-slip groove (815) and the anti-slip block (816) cooperate to prevent the pulley (805) from falling off from the inner cavity of the rotating plate (804).

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