Hardware injection mold measuring instrument

Abstract

The invention discloses a hardware injection mold measuring instrument, and relates to the technical field of hardware injection mold measurement. The hardware injection mold measuring instrument comprises a table body, a moving beam installed on the table body in a sliding mode and a lifting arm installed on the moving beam in a sliding mode, and the end of an output shaft of a first driving motor is fixedly connected with a rectangular rail frame through a supporting frame; the tracing mechanism comprises a linkage assembly jointly arranged between the telescopic rod and the push-pull rod and a guide assembly arranged between the support table and the telescopic rod and used for limiting the moving path of the pen point. The overall surface condition of the mold can be reflected more comprehensively, a detection result can be drawn into a curve in real time by combining a tracing mechanism, and the flatness difference is visually displayed; and meanwhile, the top contact assembly in the detection column mechanism can be switched between the plane and the inner wall of the cylindrical cavity for detection, so that flatness and roundness detection is considered, and the detection application range is widened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hardware injection mold measurement, in particular to a hardware injection mold measuring instrument. BACKGROUND

[0002] Hardware injection mold is a kind of molding tool with extremely wide application, which is mainly used for batch production of various metal and plastic parts such as nuts, bushings, metal rings, shaft sleeves, electronic component housings, etc. through injection molding process. After the completion of manufacturing, such mold must be strictly detected and verified to ensure that the mold body and its cavity meet the design precision, otherwise it will directly affect the dimensional stability, assembly performance and overall product quality of the molded parts in the subsequent injection molding process. Among these detection items, the flatness detection of the mold surface is one of the most important links. Whether the upper and lower molds can be completely matched when the mold is closed is directly related to whether the molding cavity can be completely sealed. If there is unevenness or small gap, it may cause the phenomenon of melt leakage from the mold joint during injection molding, which is called "flash". This not only causes product scrap, but also increases the burden of mold cleaning and maintenance.

[0003] The current industry commonly used mold flatness detection method mainly uses a dial indicator. By controlling the movement of the measuring head on the mold surface along a certain path, the deflection of the pointer is observed to judge the flatness of the path. Although this method is simple to operate and low in cost, it has obvious limitations. Firstly, the measuring path of the dial indicator is a single straight line, and single detection can only reflect the flatness of a small range of the mold surface, and cannot fully reflect the overall situation of the entire mold surface, with limited coverage. Secondly, the detection personnel need to constantly watch the pointer reading during the detection process, which is easy to miss or misjudge, especially when detecting for a long time, which requires high attention from the operator.

[0004] In addition, for some molds used to produce shaft sleeves, shaft heads and other parts, they often have cylindrical chambers (such as Figure 9 indicated), which not only need to detect the flatness of the end face, but also need to focus on the flatness of the inner wall of the chamber, i.e. the roundness, to ensure the dimensional accuracy and uniformity of the injection molded parts. However, the existing dial indicator detection method can only be used for detection of planar areas and cannot effectively be applied to measurement of cylindrical surface curves, resulting in too single detection application range and inability to fully reflect the overall geometric accuracy of the mold. SUMMARY

[0005] The application provides a hardware injection mold measuring instrument, which solves the technical problem that the current mold flatness detection mainly uses a dial gauge, the flatness is judged by moving a measuring head along a single path and observing the deflection of a pointer, the operation is simple and the cost is low, but only a local area can be covered, the overall situation is difficult to fully reflect, manual real-time reading is required, misjudgment is easy to occur, and for a mold with a cylindrical chamber, the method can only detect a plane and cannot effectively measure the roundness and flatness of the inner wall of the cylinder, the detection range is single and the geometric precision of the mold cannot be fully evaluated.

[0006] The hardware injection mold measuring instrument provided by the application comprises a table body, a moving beam slidingly installed on the table body and a lifting arm slidingly installed on the moving beam, a driving motor one is installed at the lower part of the lifting arm, the end of the output shaft of the driving motor one is fixedly connected with a rectangular rail frame through a support frame, a plurality of electric sliding blocks are equidistantly and slidingly connected in the rectangular rail frame, a detection column mechanism for detecting the flatness of the surface of the mold and the roundness of the circular cavity of the mold is installed on each electric sliding block, the detection column mechanisms are combined with each other to increase the detection range of the surface of the mold, a tracing mechanism is installed on the electric sliding block and is linked with the detection column mechanism to intuitively output and display the flatness detection result of the mold, the detection column mechanism comprises an upper pipe column fixedly connected with the electric sliding block, a piston one slidingly connected in the upper pipe column and a push-pull rod fixedly connected with the upper end face of the piston one, the tracing mechanism comprises a support table fixedly connected with the upper end face of the electric sliding block, two left-right symmetrical winding drum assemblies rotatably installed on the upper end face of the support table, a paper roll wound outside the two winding drum assemblies, a telescopic rod hinged to the support table through a support rod, a pen head fixedly connected with the rear right side of the telescopic rod and abutting against the paper roll, a linkage assembly jointly arranged between the telescopic rod and the push-pull rod and a guide assembly arranged between the support table and the telescopic rod for limiting the movement path of the pen head.

[0007] In a possible implementation, the detection column mechanism further comprises a lower pipe column hinged to the lower part of the upper pipe column through a lug plate, a sliding sleeve assembly jointly arranged between the upper pipe column and the lower pipe column and a top touch assembly installed at the lower part of the lower pipe column, the sliding sleeve assembly is used for locking and limiting the upper pipe column and the lower pipe column when the upper pipe column and the lower pipe column are switched to be collinear or perpendicular to each other, and flexible pipes are jointly connected between the upper pipe column and the lower pipe column.

[0008] In a possible implementation, the top touch assembly comprises a top sleeve slidingly sleeved at the lower part of the lower pipe column, a columnar groove opened in the inner cavity of the lower pipe column and communicated with the lower pipe column, a strip-shaped through groove opened on the lower pipe column in the axial direction and communicated with the columnar groove, a piston two slidingly connected in the columnar groove and a connecting column jointly and fixedly connected between the piston two and the top sleeve and slidingly located in the strip-shaped through groove, and a top spring is jointly and fixedly connected between the top sleeve and the lower pipe column.

[0009] In a possible implementation, the winding drum assembly comprises a multi-ribbed shaft rotatably connected to the upper end surface of the support table and a rotating drum slidingly sleeved outside the multi-ribbed shaft.

[0010] In a possible implementation, the support table is fixedly connected with a driving motor II at the upper end surface and below one of the multi-ribbed shafts, and the output shaft of the driving motor II is fixedly connected with the lower end of the multi-ribbed shaft above it.

[0011] In a possible implementation, the linkage assembly comprises a waist-shaped slot formed in the right part of the telescopic rod and a push rod fixedly connected to the front side of the telescopic rod and slidingly connected in the waist-shaped slot.

[0012] In a possible implementation, the guide assembly comprises a cylindrical connecting seat rotatably connected to the right part of the front end surface of the telescopic rod and a sliding rod fixedly connected to the upper end surface of the support table and slidingly passing through the cylindrical connecting seat.

[0013] In a possible implementation, the sliding sleeve assembly comprises a sleeve, a tongue plate, a bushing and a plug, the sleeve is slidingly sleeved outside the upper pipe column and the lower pipe column, the sleeve and the upper pipe column are fixedly connected through a fixed block and a limiting spring, the lower pipe column is fixedly connected with the tongue plate on the upper side, the bushing is formed in the tongue plate, the sleeve is fixedly connected with the plug on the lower side, and the outer wall of the upper pipe column is formed with a strip-shaped slot for slidingly embedding the tongue plate.

[0014] In a possible implementation, the inner cavity of the top sleeve is formed with a guide groove along the axial direction of the top sleeve, and the outer wall of the lower pipe column is fixedly connected with a guide block slidingly connected in the guide groove.

[0015] In a possible implementation, the outer wall of the lower pipe column is formed with an arc-shaped scale groove, and the upper side of the top sleeve is fixedly connected with an arc-shaped plate matched with the arc-shaped scale groove through a fixed column.

[0016] From the above technical solutions, the present application has the following advantages:

[0017] In the present application, the detection column mechanism is moved simultaneously through the cooperation of a plurality of equidistantly distributed detection column mechanisms, a single detection can cover multiple path areas, the detection range is expanded, the flatness data at different positions can be obtained at the same time, and the overall surface flatness of the mold can be more accurately reflected.

[0018] In the present application, the flatness result is recorded and collected in real time through the combination of the detection column mechanism and the tracking mechanism, the detection result is directly drawn on paper or other carriers to form a trajectory curve, the flatness difference is observed intuitively through the curve, and the flatness detection data is more clear in form.

[0019] In the application, the lower pipe column is switched from the vertical state to the horizontal state by the cooperation of the upper pipe column, the sliding sleeve assembly and the lower pipe column in the detection column mechanism, the top touch assembly can be attached to the inner wall of the cylindrical chamber of the mold, so as to realize the detection of the roundness of the cylindrical chamber of the mold, and the same detection equipment can be used for both plane detection and cylindrical chamber inner wall detection, thereby widening the application range of mold detection. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0021] Figure 1 The schematic diagram of the hardware injection mold measuring instrument structure provided by the present application is shown.

[0022] Figure 2 The schematic diagram of the rectangular rail frame, electric sliding block, detection column mechanism and tracking mechanism connection structure provided by the present application is shown.

[0023] Figure 3 The schematic diagram of the top touch assembly provided by the present application is shown. Figure 2

[0024] Figure 4 The schematic diagram of the tracking mechanism installation structure provided by the present application is shown.

[0025] Figure 5 The schematic diagram of the split structure of the winding drum assembly provided by the present application is shown.

[0026] Figure 6 The schematic diagram of the cross-sectional structure of the top touch assembly provided by the present application is shown.

[0027] Figure 7 The schematic diagram of the cross-sectional structure of the detection column mechanism provided by the present application is shown.

[0028] Figure 8 The schematic diagram of the cross-sectional structure of the sliding sleeve assembly provided by the present application is shown.

[0029] Figure 9 The measured mold shape is shown.

[0030] ​Wherein, the above-mentioned drawings include the following reference signs: 1, table body; 2, lifting arm; 3, drive motor one; 4, rectangular rail frame; 5, electric sliding block; 6, detection column mechanism; 61, upper pipe column; 62, piston one; 63, push-pull rod; 64, lower pipe column; 65, sliding sleeve assembly; 651, sleeve; 652, tongue plate; 653, insertion hole; 654, insertion column; 66, top touch assembly; 661, top sleeve; 662, columnar groove; 663, strip-shaped through groove; 664, connecting column; 665, piston two; 67, flexible pipe; 7, tracking mechanism; 71, bracket table; 72, winding drum assembly; 721, multi-ribbed shaft; 722, rotating drum; 723, drive motor two; 73, paper roll; 74, telescopic rod; 75, pen head; 76, linkage assembly; 761, waist-shaped groove; 762, push column; 77, guide assembly; 771, columnar connecting seat; 772, sliding rod; 8, guide block; 9, arc-shaped scale groove; 10, arc-shaped sheet. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in combination with the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the concept of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0032] Please refer to Figure 1 The present application provides a technical solution: a hardware injection mold measuring instrument, comprising a table body 1, a moving beam slidingly installed on the table body 1, and a lifting arm 2 slidingly installed on the moving beam, a drive motor one 3 is installed at the lower part of the lifting arm 2, the output shaft end of the drive motor one 3 is fixedly connected with a rectangular rail frame 4 through a support frame, a plurality of electric sliding blocks 5 are equidistantly slidingly connected in the rectangular rail frame 4, a detection column mechanism 6 for detecting the flatness of the mold surface and the roundness of the mold circular cavity, respectively, is installed on each electric sliding block 5, the detection column mechanisms 6 are combined with each other to increase the detection range of the mold surface, and a tracking mechanism 7 is installed on the electric sliding block 5 and linked with the detection column mechanism 6 to intuitively output and display the flatness detection result of the mold.

[0033] Please refer to Figure 2 , Figure 7 and Figure 8In the embodiment, the detection column mechanism 6 comprises an upper pipe column 61 fixedly connected to the electric sliding block 5, a piston I 62 slidingly connected in the upper pipe column 61, a push-pull rod 63 fixedly connected to an end face of the piston I 62, a lower pipe column 64 hingedly connected to a lower part of the upper pipe column 61 through a lug plate, a sliding sleeve assembly 65 arranged between the upper pipe column 61 and the lower pipe column 64, and a top touch assembly 66 installed at a lower part of the lower pipe column 64. The sliding sleeve assembly 65 is used for locking and positioning the upper pipe column 61 and the lower pipe column 64 when the upper pipe column 61 and the lower pipe column 64 are switched between being collinear and being perpendicular to each other. The upper pipe column 61 and the lower pipe column 64 are in common communication with a flexible pipe 67.

[0034] Please refer to Figure 2 , Figure 6 and Figure 7 , the top touch assembly 66 comprises a top sleeve 661 slidingly sleeved at a lower part of the lower pipe column 64, a columnar groove 662 opened in an inner cavity of the lower pipe column 64 and in communication with the lower pipe column 64, a strip-shaped through groove 663 axially opened on the lower pipe column 64 and in communication with the columnar groove 662, a piston II 665 slidingly connected in the columnar groove 662, and a connecting column 664 fixedly connected between the piston II 665 and the top sleeve 661 and slidingly located in the strip-shaped through groove 663. The radius size of the columnar groove 662 is greater than the inner cavity radius size of the lower pipe column 64, so that the air flow in the lower pipe column 64 is increased when the piston II 665 moves up and down, and the moving stroke of the piston I 62 is increased, that is, the moving stroke of the piston II 665 is amplified. The top sleeve 661 and the lower pipe column 64 are fixedly connected with a top spring. A guide groove is axially opened in an inner cavity of the top sleeve 661. A guide block 8 is slidingly connected in the guide groove and fixedly connected to an outer wall of the lower pipe column 64. An arc-shaped scale groove 9 is opened in the outer wall of the lower pipe column 64. An arc-shaped piece 10 is fixedly connected to the top sleeve 661 through a fixed column and cooperates with the arc-shaped scale groove 9.

[0035] Please refer to Figure 4 , Figure 7 and Figure 8 , the sliding sleeve assembly 65 comprises a sleeve 651, a tongue plate 652, a plug hole 653, and a plug column 654. The sleeve 651 is slidingly sleeved on the outer part of the upper pipe column 61 and the lower pipe column 64. The sleeve 651 and the upper pipe column 61 are fixedly connected with a limiting spring through a fixed block. The tongue plate 652 is fixedly connected to the upper side of the lower pipe column 64. The plug hole 653 is opened in the tongue plate 652. The plug column 654 is fixedly connected to the lower side of the sleeve 651 and cooperates with the plug hole 653. The outer wall of the upper pipe column 61 is provided with a strip-shaped groove for slidingly embedding the tongue plate 652.

[0036] The top sleeve 661 is initially at the lowest position, the connecting column 664 is in contact with the lower surface wall area of the strip-shaped through groove 663, and the tracking mechanism 7 is in the un-centering state. Before detection, the mold is first placed on the table body 1, and then the detection column mechanism 6 is moved and adjusted to the appropriate distance according to the detection area of the mold by controlling the electric sliding block 5 to slide in the rectangular rail frame 4. Then the detection column mechanism 6 is moved to the directly above the mold detection area by controlling the moving beam and the lifting arm 2, and then the detection column mechanism 6 is moved downward again by controlling the lifting arm 2 to move the driving motor 3, the support frame and the rectangular rail frame 4 as a whole, thereby indirectly moving the detection column mechanism 6 as a whole. The top sleeve 661 moves downward and touches the upper surface of the mold, thereby moving the upper pipe column 61 and the lower pipe column 64 as a whole, the lower pipe column 64 moves downward relative to the piston 2 665, and the connecting column 664 moves to the middle position of the strip-shaped through groove 663. The gas in the lower pipe column 64 moves upward by being pushed by the piston 2 665, and then the gas in the lower pipe column 64 moves upward through the flexible pipe 67 and the upper pipe column 61, and the piston 1 62 is pushed upward by the piston 2 665. The piston 1 62 drives the tracking mechanism 7 to run back to the centering state. The scale groove is moved downward by the lower pipe column 64 moving downward relative to the top sleeve 661. When the connecting column 664 moves to the middle position of the strip-shaped through groove 663, the scale groove also moves to the position flush with the arc-shaped piece 10. By observing that the arc-shaped piece 10 is flush with the scale groove, the lower pipe column 64 can be accurately controlled to move to the appropriate position.

[0037] First, the area not passing through the middle cylindrical chamber of the mold in the horizontal movement process is selected for detection, and then the detection column mechanism 6 is moved as a whole along the surface of the mold by controlling the moving beam. When the top sleeve 661 moves to the uneven area of the mold surface, such as the convex area, the top sleeve 661 will be pushed upward, and then the piston 2 665 is pushed upward by the connecting column 664, and the piston 1 62 is indirectly pushed upward by the gas in the lower pipe column 64, the flexible pipe 67 and the upper pipe column 61. When the concave area is encountered, the top sleeve 661 will move downward under the action of the top spring, and then the piston 2 665 is pushed downward by the connecting column 664, and the piston 1 62 is indirectly pushed downward by the gas in the lower pipe column 64 flowing downward. The piston 1 62 is longitudinally moved, and the tracking mechanism 7 is actuated to run, so that the uneven area of the mold surface is recorded in time. Then, the area passing through the cylindrical chamber of the mold in the horizontal movement process of the detection column mechanism 6 is selected for detection. When the detection column mechanism 6 moves to the position close to the cylindrical chamber, the detection column mechanism 6 is separated from the mold by controlling the lifting arm 2 to move upward, and then it is moved horizontally over the cylindrical chamber and moved downward again to drive the detection column mechanism 6 to touch the mold and continue to move horizontally for flatness detection. Multiple detection column mechanisms 6 move simultaneously for detection, which increases the detection area range of the mold.

[0038] When the flatness of the circumferential wall of the cylindrical cavity of the mold is detected, one of the electric sliding blocks 5 drives the detection column mechanism 6 to move to the middle position of the rectangular rail frame 4, then the detection column mechanism 6 located in the middle of the rectangular rail frame 4 is adjusted to move to the center position of the cylindrical cavity by controlling the moving beam and the lifting arm 2, then the sleeve 651 is manually pulled up to move, the sleeve 651 moves away from the outside of the lower pipe column 64, then the lower pipe column 64 is manually turned until it is perpendicular to the upper pipe column 61, at this time the lower pipe column 64 drives the tongue plate 652 to become horizontal, then the sleeve 651 is loosened, the sleeve 651 is lowered under the action of the limiting spring, and the insertion column 654 is lowered until it is inserted into the insertion hole 653, and the lower pipe column 64 which becomes horizontal at this time is locked.

[0039] Then the detection column mechanism 6 is lowered into the cylindrical cavity of the mold by controlling the lifting arm 2, so that the top sleeve 661 located on the lower pipe column 64 touches the circumferential wall of the center cavity, then the driving motor one 3 is controlled to run and drive the rectangular rail frame 4 to rotate through the support frame, the rectangular rail frame 4 drives the detection column mechanism 6 located in the middle to rotate, the lower pipe column 64 which becomes horizontal in the detection column mechanism 6 drives the top sleeve 661 to rotate along the center of the cylindrical cavity, when encountering uneven areas of the cylindrical cavity wall, the top sleeve 661 will be pushed, then the above-mentioned action is repeated to drive the piston one 62 to move longitudinally, and finally the uneven track is recorded on the tracking mechanism 7.

[0040] Please refer to Figure 2 , Figure 3 Figure 4 and Figure 5 In this embodiment, the tracking mechanism 7 includes a bracket table 71 fixedly connected to the upper end face of the electric sliding block 5, two left and right symmetrical drum assemblies 72 rotatably installed on the upper end face of the bracket table 71, a paper roll 73 wound outside the two drum assemblies 72, a telescopic rod 74 hingedly connected to the bracket table 71 through a support rod, a pen head 75 fixedly connected to the right rear of the telescopic rod 74 and touching the paper roll 73, a linkage assembly 76 arranged between the telescopic rod 74 and the push-pull rod 63, and a guide assembly 77 arranged between the bracket table 71 and the telescopic rod 74 for limiting the movement path of the pen head 75, the paper roll 73 is coated with scale lines, the linkage assembly 76 includes a waist-shaped slot 761 opened in the right part of the telescopic rod 74 and a push column 762 fixedly connected to the front side of the push-pull rod 63 and slidingly connected in the waist-shaped slot 761, and the guide assembly 77 includes a cylindrical connecting seat 771 rotatably connected to the right part of the front end face of the telescopic rod 74 and a sliding rod 772 fixedly connected to the upper end face of the bracket table 71 and slidingly arranged in the cylindrical connecting seat 771.

[0041] Please refer to Figure 3 and Figure 5The reel assembly 72 comprises a plurality of polygonal shafts 721 rotatably connected to the upper end surface of the support table 71 and a rotating drum 722 sleeved outside the polygonal shafts 721. A driving motor 723 is fixedly connected to the upper end surface of the support table 71 and located directly below one of the polygonal shafts 721. The output shaft of the driving motor 723 and the lower end of the polygonal shaft 721 located directly above the driving motor 723 are fixedly connected to each other.

[0042] The telescopic rod 74 is initially in an inclined state with the left lower and the right higher, so that the pen head 75 is located at the upper position of the paper roll 73 and deviates from the middle scale line on the paper roll 73. When the lower tube column 64 moves downward to move the connecting column 664 to the middle position of the strip-shaped through slot 663, the piston one 62 is pushed upward to drive the push-pull rod 63 to move upward. The push-pull rod 63 further pushes the telescopic rod 74 to rotate to the horizontal state through the push column 762. The telescopic rod 74 drives the pen head 75 to move to the middle position of the paper roll 73. The detection column mechanism 6 moves transversely to detect and control the driving motor two 723 to rotate to drive the polygonal shaft 721 to rotate. The polygonal shaft 721 drives the rotating drum 722 to rotate. The rotating drum 722 winds up the paper roll 73, and the other rotating drum 722 unwinds the paper roll 73. The moving speed of the paper roll 73 is the same as the moving speed of the detection column mechanism 6 in the detection. When the detection column mechanism 6 moves on the flat area of the mold surface, the pen head 75 draws a straight line in the middle of the paper roll 73.

[0043] When the detection moves to the convex area of the mold, the piston one 62 is indirectly pushed upward, and then drives the push-pull rod 63 to move the push column 762 upward. The push column 762 drives the telescopic rod 74 to rotate around the hinge point through the waist-shaped slot 761. The telescopic rod 74 drives the cylindrical connecting seat 771 to slide downward along the slide rod 772, so that the telescopic rod 74 is elongated, and the pen head 75 moves downward to slide on the paper roll 73 to draw a downward curved line. When moving to the flat area of the mold again, the pen head 75 will be back to the middle again. When moving to the concave area of the mold, the piston one 62 moves upward to drive the telescopic rod 74 to rotate around the hinge point through the push-pull rod 63 and the push column 762. The telescopic rod 74 drives the cylindrical connecting seat 771 to move upward along the slide rod 772, so that the pen head 75 moves upward. The pen head 75 deviates from the middle of the paper roll 73 to draw a track upward. After the detection is completed, the part of the paper roll 73 drawn by the pen head 75 is removed. The length of the paper roll 73 is the same as the distance from the detected area of the mold. When the paper roll 73 is placed in the detected area of the mold, the surface flatness of the mold can be directly displayed.

[0044] In operation, first, the mold is placed on the table body 1, then the distance position of each detection column mechanism 6 is adjusted according to the detection area through the electric sliding block 5, the flatness of the mold is detected first, the detection column mechanism 6 is made to touch the mold by controlling the moving beam and the lifting arm 2, then the detection column mechanism 6 moves on the mold, when the detection column mechanism 6 encounters the uneven area of the mold, the feedback is made to the tracking mechanism 7, the tracking mechanism 7 operates to record, after the detection, the paper roll 73 on the tracking mechanism 7 is taken down and compared with the mold detection area, the specific position of the uneven area can be shown; when the flatness of the cylindrical cavity on the mold is detected, first, one of the detection column mechanisms 6 is moved to the middle of the rectangular rail frame 4 through the electric sliding block 5, and is located at the center position of the cylindrical cavity of the mold, then the lower pipe column 64 in the detection column is rotated by 90 degrees to become a horizontal position and is locked, then the detection column mechanism 6 in the middle is driven to move down into the cylindrical cavity by the lifting arm 2, the top sleeve 661 in the detection column mechanism 6 touches the cylindrical cavity wall, the rectangular rail frame 4 is driven to rotate by controlling the driving motor one 3, the rectangular rail frame 4 then drives the detection column mechanism 6 to rotate, the top sleeve 661 in the detection column mechanism 6 rotates along the cylindrical cavity wall, when the uneven area is encountered in the rotating process, the same operation as the above flatness detection is performed, the uneven area is fed back to the tracking mechanism 7 for recording.

[0045] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In addition, the terms "first", "second", "one", "two" are only for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0047] In this application, unless otherwise clearly indicated and limited, the terms "setting", "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0048] The embodiments of the specific implementation are the preferred embodiments of the application, not limited by the protection scope of the application, therefore, any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A hardware injection mold measuring instrument, comprising a platform, a moving beam slidably mounted on the platform, and a lifting arm slidably mounted on the moving beam, characterized in that: A driving motor 1 is installed at the lower part of the lifting arm. The end of the output shaft of the driving motor 1 is fixedly connected to a rectangular rail frame through a support frame. A plurality of electric sliders are equidistantly slidably connected to the rectangular rail frame. Each electric slider is installed with a detection column mechanism for detecting the flatness of the mold surface and the roundness of the mold circular cavity. The detection column mechanisms are combined with each other to increase the detection range of the mold surface. The electric slider is installed with a tracer mechanism that is linked with the detection column mechanism to intuitively output and display the mold flatness detection result. The detection column mechanism includes an upper tube column fixedly connected to the electric slider, a piston 1 slidably connected to the upper tube column, and a push-pull rod fixedly connected to the upper end surface of the piston 1; The tracing mechanism includes a support platform fixedly connected to the upper end surface of the electric slider, two roller assemblies symmetrically mounted on the upper end surface of the support platform for rotation, a paper roll wound around the outside of the two roller assemblies, a telescopic rod hinged to the support platform through a support rod, a pen tip fixedly connected to the right rear portion of the telescopic rod and touching the paper roll, a linkage assembly jointly arranged between the telescopic rod and the push-pull rod, and a guide assembly arranged between the support platform and the telescopic rod for limiting the moving path of the pen tip.

2. The metal injection mold measuring instrument according to claim 1, characterized in that: The detection column mechanism also includes a lower pipe column hinged to the lower part of the upper pipe column through a lug plate, a sliding sleeve assembly jointly arranged between the upper pipe column and the lower pipe column, and a top contact assembly installed at the lower part of the lower pipe column. The sliding sleeve assembly is used to lock and limit the upper pipe column and the lower pipe column when they are switched to be collinear or perpendicular to each other. A flexible tube is commonly connected between the upper pipe column and the lower pipe column.

3. The metal injection mold measuring instrument according to claim 2, characterized in that: The top contact assembly includes a top sleeve slidingly sleeved on the lower part of the lower pipe column, a columnar groove opened inside the inner cavity of the lower pipe column and connected with the lower pipe column, a strip-shaped through groove opened on the lower pipe column along the axial direction of the lower pipe column and connected with the columnar groove, a second piston slidingly connected in the columnar groove, and a connecting column fixedly connected between the second piston and the top sleeve and slidingly located in the strip-shaped through groove, and a top spring fixedly connected between the top sleeve and the lower pipe column.

4. The metal injection mold measuring instrument according to claim 1, characterized in that: The reel assembly comprises a polygonal shaft rotatably connected to the end surface of the support platform and a rotating drum slidably sleeved on the outside of the polygonal shaft.

5. The metal injection mold measuring instrument according to claim 4, characterized in that: A second driving motor is embedded and fixedly connected on the support platform and located directly below one of the polygonal shafts. The output shaft of the second driving motor and the lower end of the polygonal shaft located directly above it are fixedly connected to each other.

6. The metal injection mold measuring instrument according to claim 1, characterized in that: The linkage assembly comprises a waist-shaped groove provided on the right part of the telescopic rod and a shifting post fixedly connected to the front side of the push-pull rod and slidably connected in the waist-shaped groove.

7. The metal injection mold measuring instrument according to claim 1, characterized in that: The guide assembly comprises a columnar connecting seat rotatably connected to the right part of the front end surface of the telescopic rod and a sliding rod fixedly connected to the end surface of the bracket platform and slidably penetrated through the columnar connecting seat.

8. The metal injection mold measuring instrument according to claim 2, characterized in that: The sliding sleeve assembly includes a sleeve, a tongue plate, a socket and a plug column. The upper pipe column and the lower pipe column are jointly slidably sleeved with a sleeve on the outside. The sleeve and the upper pipe column are fixedly connected to a limit spring through a fixed block. The upper side of the lower pipe column is fixedly connected with a tongue plate, and a socket is provided on the tongue plate. The lower side of the sleeve is fixedly connected with a plug column that cooperates with the socket. The outer wall of the upper pipe column is provided with a strip groove for the tongue plate to slide and embed.

9. The metal injection mold measuring instrument according to claim 3, characterized in that: The inner cavity of the top sleeve is provided with a guide groove along its own axial direction, and the outer wall of the lower pipe column is fixedly connected with a guide block which is slidably connected in the guide groove.

10. The metal injection mold measuring instrument according to claim 3, characterized in that: An arc-shaped scale groove is opened on the outer wall of the lower pipe column, and an arc-shaped piece matching the arc-shaped scale groove is fixedly connected to the upper side of the top sleeve through a fixing column.

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