Windowing chain camber measuring instrument

Abstract

The utility model discloses a windowing chain camber measuring instrument, which comprises a machine table, a pushing clamping die and a lateral bending guide mechanism, a placing cavity is arranged in the middle of the machine table, the top of the machine table is fixedly connected with a mounting plate, a center hole communicated with the placing cavity is arranged in the center of the mounting plate, and the lateral bending guide mechanism is arranged in the placing cavity. The two sets of pushing clamping dies are arranged on the two sides of the top of the mounting plate respectively, the two sides of the top of the mounting plate are symmetrically and fixedly connected with two sets of linear sliding rails, the pushing clamping dies are installed on the two sets of linear sliding rails on the same side in a sliding mode, and the two sets of pushing clamping dies are used for clamping and fixing a to-be-measured windowing chain body; according to the utility model, the key dimension bending value of the windowing chain can be accurately measured, the measurement data is visual, the operation is simple and convenient, the technical requirements on operators are reduced, the back bending dimension measurement and the side bending dimension measurement can be realized on one set of equipment, and the measurement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of window opening chain testing, in particular to a window opening chain curvature measuring instrument. Background Art

[0002] The window chain is a mechanical device whose main function is to open and close the window manually or electrically. This device plays a key transmission role in the opening and closing process of the window. The curvature measurement of the window chain usually involves evaluating whether the chain is twisted or deformed during use to avoid affecting the opening and closing of the window. The twisting or deformation of the window chain may cause the window to move unsmoothly or even get stuck. By measuring the curvature, it can be ensured that the window chain is in good working condition, thereby ensuring the normal function of the window and improving the convenience of use.

[0003] Currently, there are two ways to measure the curvature of window chains: one is the manual measurement method, which uses a ruler or a thinner steel wire to pull the head and tail of the chain into the same straight line to ensure that the chain is straightened, and uses a wooden stick or a thin iron rod to apply a little pressure on the outside of the chain to observe and measure the curvature of the window chain. The dynamic measurement method requires a certain amount of manpower and experience to ensure that appropriate pressure is applied; the other is the automatic measurement method, including laser scanning method, lower cam method, robotic arm method, etc. Although the automatic measurement method is accurate and fast, its equipment cost is relatively high, and the back bend size and side bend size of the window chain are both important measurement standards for the window chain. The above two methods are mostly only suitable for the back bend curvature measurement of the window chain, and the equipment needs to be replaced when measuring the side bend curvature of the window chain, which is cumbersome to operate and reduces the measurement efficiency. Therefore, it is necessary to design a window chain curvature measuring instrument to improve the above problems. Utility Model Content

[0004] The purpose of this application is to provide a window chain curvature measuring instrument to solve the problem that the prior art has high technical requirements for operators, requires equipment replacement when measuring the back and side curvature dimensions of the window chain, causes cumbersome operation, and reduces measurement efficiency.

[0005] To achieve the above purpose, the present application provides the following technical solution: a window chain curvature measuring instrument, comprising:

[0006] A machine platform, wherein a placement cavity is arranged in the middle of the machine platform, a mounting plate is fixedly connected to the top of the machine platform, and a center hole which penetrates the placement cavity is opened at the center of the mounting plate;

[0007] A push clamping mold is provided, wherein two groups of the push clamping mold are respectively placed on both sides of the top of the mounting plate, and two groups of linear slide rails are symmetrically fixedly connected on both sides of the top of the mounting plate. The push clamping mold is slidably installed on the two groups of linear slide rails on the same side, and the two groups of the push clamping molds are used to clamp and fix the window chain body to be measured;

[0008] A side bending guide mechanism, wherein the side bending guide mechanism is provided with two groups of front and rear ends respectively placed in the middle of the mounting plate, and a through hole which is connected to the placement cavity is opened at the corresponding side bending guide mechanism on the mounting plate;

[0009] The window chain body is fixedly connected with a steel wire rope at its midpoint during measurement, and one end of the steel wire rope can pass through the central hole and extend to the placement cavity where a weight is connected, so as to measure the back bending size of the window chain body;

[0010] One end of the steel wire rope can be placed on the side bending guide mechanism and then pass through the through hole and extend to the placement cavity where a weight is connected, which is used to measure the side bending size of the window chain body on both sides.

[0011] Preferably, the pushing and clamping mold includes a mounting seat, a slide seat is fixedly connected to the bottom of the mounting seat corresponding to the linear slide rail, the slide seat is slidably connected to the linear slide rail, a fixed clamp block and a force guiding slider are installed on the top of the mounting seat, a clamping slide is slidably installed inside the force guiding slider, both ends of the clamping slide extend to the outside of the force guiding slider, a movable clamp block is installed at one end of the clamping slide close to the fixed clamp block, and a pushing member is connected to the other end of the clamping slide, the pushing member is used to drive the clamping slide and the movable clamp block to move laterally, and the end of the window opening chain body is clamped between the fixed clamp block and the movable clamp block.

[0012] Preferably, the pushing member includes a spring guide seat connected to the end of the clamping slide away from the movable clamping block, the end of the spring guide seat away from the clamping slide is fixedly connected to an adjusting screw, the end of the adjusting screw away from the spring guide seat is fixedly connected to a transverse pressure type elbow clamp, and the transverse pressure type elbow clamp is fixedly installed on the mounting seat.

[0013] Preferably, an installation cavity is opened inside the spring guide seat, and a guide rod is movably installed in the installation cavity. One end of the guide rod is fixedly connected to the clamping slide, and the other end of the guide rod is placed in the installation cavity and fixedly connected to a limiting block. A spring is sleeved between the limiting block and the outer wall of the clamping slide and located on the outside of the guide rod.

[0014] Preferably, a positioning pin is laterally inserted into the interior of the fixed clamp block, the positioning pin and the fixed clamp block are detachably mounted, the fixed clamp block and the mounting seat are detachably mounted, and the movable clamp block and the clamping slide are detachably mounted.

[0015] Preferably, a fixing plate is fixedly connected to one side of the mounting seat, and a slide rail locker is installed on the fixing plate at the linear slide rail.

[0016] Preferably, buffer members are provided on both sides between the two groups of linear slide rails on the same side, and the buffer members are used to limit the range of movement of the pushing and clamping mold.

[0017] Preferably, the buffer member comprises a buffer fixing seat fixedly connected to the top of the mounting plate and a buffer fixedly connected to the buffer fixing seat, and the force-bearing end of the buffer faces toward the pushing and clamping mold and extends out of the buffer fixing seat.

[0018] Preferably, the side bending guide mechanism includes a sliding rod fixing seat fixedly connected to the top of the mounting plate, two sliding rods are vertically fixedly connected to the top of the sliding rod fixing seat, guide wheel adjustment seats are slidably sleeved on the two sliding rods, butterfly bolts are connected to the guide wheel adjustment seat at the sliding rod, a guide wheel fixing seat is fixedly connected to the top of the guide wheel adjustment seat, a guide wheel is rotatably connected inside the guide wheel fixing seat, the guide wheel corresponds to the through hole position up and down, and an avoidance groove corresponding to the through hole position is opened on the sliding rod fixing seat.

[0019] Preferably, a transverse ruler is embedded and installed on the top of the mounting plate and on both the left and right sides of the center hole, and a vertical ruler is embedded and installed on the top of the mounting plate and on both the front and rear ends of the center hole, and the vertical ruler is arranged perpendicular to the transverse ruler.

[0020] In summary, the technical effects and advantages of the utility model are:

[0021] 1. In the utility model, the two ends of the window opening chain body are respectively placed on two groups of pushing and clamping molds to fix the window opening chain body to be measured, and then the pushing and clamping mold is moved on the linear slide rail to adjust the position of the window opening chain body, and the midpoint of the window opening chain body is placed at the center hole, and the steel wire rope is fixed at the midpoint of the window opening chain body, one end of the steel wire rope is passed through the center hole and then connected to the weight of corresponding mass, and the window opening chain body can be pulled in a free hanging state of the weight, and the back bending size of the window opening chain body is measured using a height gauge, and one end of the steel wire rope is passed around the two groups of side bending guide mechanisms and then passed through the through hole to connect the weight of corresponding mass, and the side bending size is measured by using a right-angle ruler against the window opening chain body, so that the key size curvature value of the window opening chain can be accurately measured, the measurement data is intuitive, the operation is simple, and the technical requirements for the operator are reduced. The back bending size measurement and the side bending size measurement can be realized on a set of equipment, thereby improving the measurement efficiency.

[0022] 2. In the utility model, the positioning pin and the fixed clamp block are detachably installed, the fixed clamp block and the mounting seat are detachably installed, and the movable clamp block and the clamping slide plate are detachably installed, so as to facilitate the replacement of the positioning pin, the fixed clamp block and the movable clamp block, and the adjusting screw can be adjusted in length to adjust the movable range of the movable clamp block, which is used to adjust the clamping width between the movable clamp block and the fixed clamp block. It can adapt to measure window chain products of multiple specifications and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the window chain curvature measuring instrument;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of part of the window chain curvature measuring instrument;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the push clamping mold;

[0027] Figure 4 To promote the cross-sectional view of the clamping die;

[0028] Figure 5 for Figure 2 A schematic diagram of the enlarged structure of region A;

[0029] Figure 6 is a schematic diagram of the three-dimensional structure of the side bending guide mechanism;

[0030] Figure 7 It is a schematic diagram of the back bending and side bending size structure of the window chain body.

[0031] In the figure: 1, machine table; 101, placement cavity; 2, moving wheel; 3, mounting plate; 301, center hole; 302, horizontal scale; 303, vertical scale; 4, push frame; 5, linear slide rail; 6, push clamping mold; 601, mounting seat; 602, fixed clamping block; 603, positioning pin; 604, force guide slider; 605, pressing slide plate; 606, movable clamping block; 607, spring guide seat; 6071, guide rod; 607 2. Spring; 608. Adjusting screw; 609. Horizontal pressure elbow clamp; 610. Fixing plate; 611. Slide rail locker; 612. Slide seat; 7. Window chain body; 8. Side bending guide mechanism; 801. Slide rod fixing seat; 802. Slide rod; 803. Guide wheel adjustment seat; 804. Butterfly bolt; 805. Guide wheel fixing seat; 806. Guide wheel; 9. Buffer; 901. Buffer fixing seat; 902. Buffer; 10. Weight. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example

[0034] like Figure 1-Figure 7As shown, an embodiment of the utility model provides a window chain curvature measuring instrument, including a machine platform 1, a pushing and clamping mold 6 and a side bending guide mechanism 8. A placement cavity 101 is arranged in the middle position of the machine platform 1, a mounting plate 3 is fixedly connected to the top of the machine platform 1, and a center hole 301 which passes through the placement cavity 101 is opened at the center of the mounting plate 3; the pushing and clamping mold 6 is provided with two groups which are respectively placed on both sides of the top of the mounting plate 3, and two groups of linear slide rails 5 are symmetrically fixedly connected to both sides of the top of the mounting plate 3, and the pushing and clamping mold 6 is slidably installed on the two groups of linear slide rails 5 on the same side, and the two groups of pushing and clamping molds 6 are used to clamp and fix the window chain body 7 to be measured; the side bending guide mechanism 8 is provided with two groups of front and rear ends which are respectively placed at the middle position of the mounting plate 3, and a through hole which passes through the placement cavity 101 is opened on the mounting plate 3 corresponding to the side bending guide mechanism 8; a steel wire rope is fixedly connected at the midpoint of the window chain body 7 during measurement, and one end of the steel wire rope can be passed through Through the center hole 301 and extend to the placement cavity 101, a weight 10 is connected to measure the back bending size of the window chain body 7; one end of the wire rope can be placed on the side bending guide mechanism 8 and then pass through the through hole and extend to the placement cavity 101, where a weight 10 is connected, which is used for the side bending size of the window chain body 7 on both sides. When measuring the curvature of the window chain body 7, the two ends of the window chain body 7 are respectively placed on two sets of pushing and clamping molds 6 to fix the window chain body 7 to be measured, and then the pushing and clamping molds 6 are moved on the linear slide rail 5 to adjust the position of the window chain body 7, and the midpoint of the window chain body 7 is placed at the center hole 301. By fixing the wire rope at the midpoint of the window chain body 7, passing one end of the wire rope through the center hole 301 and then connecting the weight 10 of the corresponding mass, the window chain body 7 can be pulled in a free hanging state by the weight 10, and the back bending size of the window chain body 7 can be measured using a height gauge. Figure 7 A in the figure); pass one end of the wire rope around the two sets of side bending guide mechanisms 8 and then pass through the through hole to connect the weight 10 of the corresponding mass, and use a square ruler to measure the side bending size against the window chain body 7 ( Figure 7 B) in the figure can accurately measure the key curvature value of the window opening chain. The measurement data is intuitive, the operation is simple, and the technical requirements for the operator are reduced.

[0035] In this embodiment, if Figure 2As shown, a horizontal ruler 302 is embedded and installed on the top of the mounting plate 3 and on both sides of the left and right sides of the center hole 301, and a vertical ruler 303 is embedded and installed on the top of the mounting plate 3 and on both ends of the front and rear of the center hole 301. The vertical ruler 303 is vertically arranged to the horizontal ruler 302. By setting the horizontal ruler 302, it is convenient to move the length midpoint of the window opening chain body 7 to the corresponding position of the center hole 301 when pushing the clamping mold 6 to adjust the position, so as to facilitate measurement. By setting the vertical ruler 303, when measuring the side bending size, the right-angle ruler is placed on both sides of the window opening chain body 7, and the reading is taken at the vertical ruler 303 corresponding to the bottom of the right-angle ruler, so as to intuitively measure the side bending size of the window opening chain.

[0036] As an implementation method of this embodiment, Figure 3 As shown, the pushing and clamping mold 6 includes a mounting seat 601, a slide seat 612 is fixedly connected to the linear slide rail 5 at the bottom of the mounting seat 601, and the slide seat 612 is slidably connected to the linear slide rail 5. A fixed clamp block 602 and a force-bearing guide slider 604 are installed on the top of the mounting seat 601. The force-bearing guide slider 604 is fixedly connected to the mounting seat 601 by bolts. A clamping slide plate 605 is slidably installed inside the force-bearing guide slider 604. Both ends of the clamping slide plate 605 extend to the outside of the force-bearing guide slider 604. The clamping slide plate 605 is close to the fixed clamp block 602. A movable clamping block 606 is installed at one end, and a pushing member is connected to the other end of the clamping slide 605. The pushing member is used to drive the clamping slide 605 and the movable clamping block 606 to move horizontally. The end of the window opening chain body 7 is clamped between the fixed clamping block 602 and the movable clamping block 606. When fixing the window opening chain body 7, the end of the window opening chain body 7 is placed between the movable clamping block 606 and the fixed clamping block 602, and the movable clamping block 606 is driven by the pushing member to move toward the fixed clamping block 602, thereby clamping and fixing the end of the window opening chain body 7. The structure is simple and easy to use.

[0037] In this embodiment, if Figure 3 As shown, a positioning pin 603 is laterally inserted into the interior of the fixed clamp block 602. The positioning pin 603 is used to pass through the inner hole of the sleeve of the window opening chain body 7 to prevent the window opening chain body 7 from being clamped and fixed. This can ensure the consistency of the clamping and fixing of the window opening chain body 7 each time and improve the measurement accuracy.

[0038] In this embodiment, if Figure 3As shown, the pushing member includes a spring guide seat 607 connected to the end of the clamping slide 605 away from the movable clamp block 606, the end of the spring guide seat 607 away from the clamping slide 605 is fixedly connected with an adjusting screw 608, the end of the adjusting screw 608 away from the spring guide seat 607 is fixedly connected with a transverse pressure type elbow clamp 609, the transverse pressure type elbow clamp 609 is fixedly installed on the mounting seat 601, and the adjusting screw 608 can be driven to move laterally by pressing the transverse pressure type elbow clamp 609, the adjusting screw 608 pushes the spring guide seat 607 to move, and the spring guide seat 607 pushes the clamping slide 605 to move in the force-bearing guide slider 604, so that the movable clamp block 606 is driven to move and clamped by the clamping slide 605, and the stability of the movement and adjustment of the clamping slide 605 is improved by the way that the clamping slide 605 slides in the force-bearing guide slider 604, and the clamping effect of the movable clamp block 606 on the window chain body 7 is improved.

[0039] In this embodiment, if Figure 3 and Figure 4 As shown, an installation cavity is opened inside the spring guide seat 607, and a guide rod 6071 is movably installed in the installation cavity. One end of the guide rod 6071 is fixedly connected to the clamping slide 605, and the other end of the guide rod 6071 is placed in the installation cavity and fixedly connected to a limiting block. A spring 6072 is sleeved between the limiting block and the outer wall of the clamping slide 605 and located on the outside of the guide rod 6071. Through the arrangement of the guide rod 6071 and the spring 6072, a certain displacement buffer can be provided for the movable clamping block 606 to avoid excessive clamping force of the movable clamping block 606, which will cause clamping damage to the window opening chain body 7.

[0040] In this embodiment, if Figure 3 and Figure 4 As shown, the locating pin 603 and the fixed clamp block 602 are detachably installed, and the detachable installation method can be bolt connection, threaded connection, etc., the fixed clamp block 602 and the mounting seat 601 are detachably installed, and the detachable installation method can be bolt connection, the movable clamp block 606 and the clamping slide plate 605 are detachably installed, and the detachable installation method can be bolt connection, mortise and tenon connection, etc., so as to facilitate the replacement of the locating pin 603, the fixed clamp block 602 and the movable clamp block 606, wherein the adjusting screw 608 can be adjusted in length, thereby adjusting the movable range of the movable clamp block 606, that is, adjusting the clamping width between the movable clamp block 606 and the fixed clamp block 602, which can adapt to the measurement of window chain products of different sizes and has high practicality.

[0041] In this embodiment, if Figure 3As shown, a fixing plate 610 is fixedly connected to one side of the mounting seat 601, and a slide rail locker 611 is installed on the fixing plate 610 at the linear slide rail 5. The slide rail locker 611 can be used to lock on the linear slide rail 5 to fix the position of the mounting seat 601. When the window opening chain body 7 measures the side bending size, the two sets of pushing and clamping molds 6 are locked in position to prevent the window opening chain body 7 from moving when measuring the side bending size and affecting the measurement accuracy. In one example, the slide rail locker 611 includes a connecting frame fixedly connected to the fixing plate 610, a bidirectional screw rotatably connected to the connecting frame, a knob fixedly connected to one end of the bidirectional screw, and a clamping block threadedly connected to the opposite sides of the bidirectional screw. The bidirectional screw is driven to rotate by turning the knob, thereby adjusting the two clamping blocks to move closer or farther away from each other. The clamping block is clamped on the linear slide rail 5 to lock the position of the mounting seat 601.

[0042] In this embodiment, if Figure 2 As shown, buffer members 9 are arranged on both sides between the two groups of linear guide rails 5 on the same side. The buffer members 9 are used to limit the range of movement of the pushing and clamping mold 6. The buffer members 9 include a buffer fixing seat 901 fixedly connected to the top of the mounting plate 3 and a buffer 902 fixedly connected to the buffer fixing seat 901. The force-bearing end of the buffer 902 faces the pushing and clamping mold 6 and extends out of the buffer fixing seat 901. The buffer members 9 are arranged to limit the range of movement of the pushing and clamping mold 6 to prevent the pushing and clamping mold 6 from detaching from the linear guide rail 5.

[0043] As an implementation method of this embodiment, Figure 6 As shown, the side bending guide mechanism 8 includes a slide bar fixing seat 801 fixedly connected to the top of the mounting plate 3, two slide bars 802 are vertically fixedly connected to the top of the slide bar fixing seat 801, guide wheel adjustment seats 803 are slidably sleeved on the two slide bars 802, butterfly bolts 804 are connected to the guide wheel adjustment seat 803 at the slide bar 802, a guide wheel fixing seat 805 is fixedly connected to the top of the guide wheel adjustment seat 803, a guide wheel 806 is rotatably connected inside the guide wheel fixing seat 805, and the guide wheel 806 corresponds to the through hole position up and down, and the slide bar fixing seat 801 is opened. An avoidance groove corresponding to the position of the through hole is provided. When measuring the side bending size of the window chain body 7, the guide wheel adjustment seat 803 is moved longitudinally on the slide rod 802, and the guide wheel 806 is moved to the connection point between the window chain body 7 and the wire rope. The butterfly bolt 804 is tightened to fix the position of the guide wheel adjustment seat 803, and then the wire rope is passed around the guide wheel 806 and then through the through hole to connect the weight 10, and the side bending of the window chain body 7 is pulled for measurement. It should be noted that the wire rope between the window chain body 7 and the guide wheel 806 should be kept as horizontal as possible.

[0044] In this embodiment, moving wheels 2 are installed at the four corners of the bottom of the machine 1, and push racks 4 are highly connected to both sides of the top of the mounting plate 3 to facilitate moving the window chain curvature measuring instrument to the use area.

[0045] Working principle: When in use, one end of the window chain body 7 is placed between one set of movable clamping blocks 606 and fixed clamping blocks 602 that push and clamp the mold 6, and the positioning pin 603 is passed through the inner hole of the sleeve of the window chain body 7. By pressing the horizontal pressure type elbow clamp 609, the adjusting screw 608 can be driven to move horizontally, and the adjusting screw 608 pushes the spring guide seat 607 to move, and the spring guide seat 607 pushes the pressing slide 605 to move in the force-bearing guide slide 604, thereby driving the movable clamp 606 to move in the force-bearing guide slide 604 through the pressing slide 605. The movable clamp block 606 moves to clamp and fix the end of the window chain body 7, and then the other end of the window chain body 7 is placed between another set of movable clamp blocks 606 and fixed clamp blocks 602 for pushing and clamping the clamping mold 6. The other end of the window chain body 7 is clamped and fixed by the above method, and then the clamping mold 6 is pushed to move on the linear slide rail 5. In conjunction with the indication of the horizontal ruler 302, the midpoint of the length of the window chain body 7 is moved and adjusted to the corresponding position of the center hole 301. The highest point of the height gauge is measured in the natural state. The distance between the window chain body 7 and the mounting plate 3 is measured, and then the steel wire rope is fixed at the midpoint of the window chain body 7, one end of the steel wire rope is passed through the center hole 301 and then connected to the weight 10 of the corresponding mass, and the window chain body 7 is pulled to bend back by the free hanging state of the weight 10, and then the back bend size of the window chain body 7 is measured by a height gauge. After the back bend size measurement is completed, the weight 10 is removed, and the guide wheel adjustment seat 803 is moved longitudinally on the slide bar 802. The guide wheel 806 is moved to the connection point between the window chain body 7 and the steel wire rope. , tighten the butterfly bolt 804 to fix the position of the guide wheel adjustment seat 803, then pass the wire rope around the guide wheel 806 and then pass it through the through hole to connect the weight 10, pull the window chain body 7 to bend sideways, then place the square ruler against the side of the window chain body 7, and read the reading at the vertical scale 303 corresponding to the bottom of the square ruler to intuitively measure the side bending size of the window chain. The utility model can accurately measure the key dimensional curvature value of the window chain, the measurement data is intuitive, the operation is simple, and the technical requirements for the operator are reduced.

[0046] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Window chain curvature measuring instrument, characterized in that: include: A machine platform (1), wherein a placement cavity (101) is arranged in the middle of the machine platform (1), a mounting plate (3) is fixedly connected to the top of the machine platform (1), and a center hole (301) which is in communication with the placement cavity (101) is opened at the center of the mounting plate (3); A push-and-clamp mold (6), wherein the push-and-clamp mold (6) is provided with two groups respectively placed on both sides of the top of the mounting plate (3), and two groups of linear slide rails (5) are symmetrically fixedly connected to both sides of the top of the mounting plate (3), and the push-and-clamp mold (6) is slidably mounted on the two groups of linear slide rails (5) on the same side, and the two groups of the push-and-clamp molds (6) are used to clamp and fix the window chain body (7) to be measured; A side bending guide mechanism (8), wherein the side bending guide mechanism (8) is provided with two groups of front and rear ends respectively placed in the middle of the mounting plate (3), and a through hole that penetrates the placement cavity (101) is opened on the mounting plate (3) at a position corresponding to the side bending guide mechanism (8); The window opening chain body (7) is fixedly connected to a steel wire rope at its midpoint during measurement, and one end of the steel wire rope can pass through the central hole (301) and extend into the placement cavity (101) to be connected to a weight (10) for measuring the back bending size of the window opening chain body (7); One end of the steel wire rope can be placed on the side bending guide mechanism (8) and then pass through the through hole and extend into the placement cavity (101) to be connected with a weight (10) for the side bending size of the window chain body (7) on both sides.

2. The window chain curvature measuring instrument according to claim 1, characterized in that: The pushing and clamping mold (6) includes a mounting seat (601), a slide seat (612) is fixedly connected to the bottom of the mounting seat (601) corresponding to the linear slide rail (5), and the slide seat (612) is slidably connected to the linear slide rail (5). A fixed clamping block (602) and a force-bearing guide slider (604) are installed on the top of the mounting seat (601), and a clamping slide plate (605) is slidably installed inside the force-bearing guide slider (604). Both ends of the clamping slide plate (605) extend to the outside of the force-bearing guide slider (604), and a movable clamping block (606) is installed at one end of the clamping slide plate (605) close to the fixed clamping block (602). The other end of the clamping slide plate (605) is connected to a pushing member, and the pushing member is used to drive the clamping slide plate (605) and the movable clamping block (606) to move laterally. The end of the window opening chain body (7) is clamped between the fixed clamping block (602) and the movable clamping block (606).

3. The window chain curvature measuring instrument according to claim 2, characterized in that: The pushing member comprises a spring guide seat (607) connected to one end of the clamping slide (605) away from the movable clamping block (606); the end of the spring guide seat (607) away from the clamping slide (605) is fixedly connected to an adjusting screw (608); the end of the adjusting screw (608) away from the spring guide seat (607) is fixedly connected to a transverse pressure type elbow clamp (609); and the transverse pressure type elbow clamp (609) is fixedly mounted on the mounting seat (601).

4. The window chain curvature measuring instrument according to claim 3, characterized in that: The spring guide seat (607) is provided with an installation cavity inside, and a guide rod (6071) is movably installed in the installation cavity. One end of the guide rod (6071) is fixedly connected to the clamping slide (605), and the other end of the guide rod (6071) is placed in the installation cavity and fixedly connected to a limit block. A spring (6072) is sleeved between the limit block and the outer wall of the clamping slide (605) and located on the outside of the guide rod (6071).

5. The window chain curvature measuring instrument according to claim 2, characterized in that: A positioning pin (603) is laterally inserted into the interior of the fixed clamp block (602); the positioning pin (603) and the fixed clamp block (602) are detachably mounted; the fixed clamp block (602) and the mounting seat (601) are detachably mounted; and the movable clamp block (606) and the pressing slide plate (605) are detachably mounted.

6. The window chain curvature measuring instrument according to claim 2, characterized in that: A fixing plate (610) is fixedly connected to one side of the mounting seat (601), and a slide rail locker (611) is installed on the fixing plate (610) at the position of the linear slide rail (5).

7. The window chain curvature measuring instrument according to claim 1, characterized in that: Buffer components (9) are provided on both sides between the two groups of linear slide rails (5) on the same side, and the buffer components (9) are used to limit the range of movement of the push clamping mold (6).

8. The window chain curvature measuring instrument according to claim 7, characterized in that: The buffer member (9) comprises a buffer fixing seat (901) fixedly connected to the top of the mounting plate (3) and a buffer (902) fixedly connected to the buffer fixing seat (901), wherein the force-bearing end of the buffer (902) faces the pushing clamping mold (6) and extends out of the buffer fixing seat (901).

9. The window chain curvature measuring instrument according to claim 1, characterized in that: The side bending guide mechanism (8) comprises a slide bar fixing seat (801) fixedly connected to the top of the mounting plate (3), two slide bars (802) being vertically fixedly connected to the top of the slide bar fixing seat (801), guide wheel adjustment seats (803) being slidably sleeved on the two slide bars (802), butterfly bolts (804) being connected to the guide wheel adjustment seat (803) at the slide bars (802), a guide wheel fixing seat (805) being fixedly connected to the top of the guide wheel adjustment seat (803), a guide wheel (806) being rotatably connected inside the guide wheel fixing seat (805), the guide wheel (806) corresponding to the through hole position in upper and lower directions, and an avoidance groove corresponding to the through hole position being provided on the slide bar fixing seat (801).

10. The window chain curvature measuring instrument according to claim 1, characterized in that: A transverse scale (302) is embedded and installed on the top of the mounting plate (3) and on both the left and right sides of the central hole (301), and a vertical scale (303) is embedded and installed on the top of the mounting plate (3) and on both the front and rear ends of the central hole (301), and the vertical scale (303) is arranged perpendicular to the transverse scale (302).

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