Material flatness testing fixture for connecting plate assembly

Abstract

A material flatness testing fixture for a connecting plate assembly comprises a lower base and an upper clamping seat which are fixedly connected into a whole, and a connecting plate clamping groove corresponding to the outline of a connecting plate is arranged between the lower base and the upper clamping seat. Vertical rod insertion holes are formed in the positions, corresponding to the vertical rods, of the lower base; a handle buckle clamping groove matched with the outer contour of the handle buckle and the outer contour of the connecting pin is formed in the position, corresponding to the handle buckle and the connecting pin, of the upper clamping base. An allowed error amount is arranged in the connecting plate clamping groove, the vertical central axis of the vertical rod inserting hole and the vertical central axis of the handle buckle clamping groove are respectively perpendicular to the horizontal central axis of the connecting plate clamping groove, and the vertical central axis of the vertical rod inserting hole is parallel to the vertical central axis of the handle buckle clamping groove. According to the utility model, whether the verticality and the error rate of the connecting plate assembly are within an allowable range can be rapidly detected, the detection speed is accelerated, and the detection efficiency is improved; meanwhile, measurement errors generated during measurement are eliminated, and the measurement accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a material leveling gauge for connecting plate assemblies. Background Technology

[0002] Figure 1 The connecting plate assembly shown includes a connecting plate parallel to the horizontal plane, a vertical rod connected to the bottom surface of the larger end of the connecting plate, and a handle connected to the top surface of the smaller end of the connecting plate, with a connecting pin at the top of the handle; both the vertical rod and the handle are perpendicular to the connecting plate. During welding and fixing of the connecting plate to the vertical rod and the handle, deviations may sometimes occur, resulting in an angle between the vertical rod and the connecting plate being greater than or less than 90 degrees, or / and the angle between the handle and the connecting plate being greater than or less than 90 degrees. To ensure the pass rate of the connecting plate assembly, it is necessary to measure and inspect the angles between the vertical rod and the connecting plate, and the angles between the handle and the connecting plate.

[0003] The current measurement method involves inspectors using angle measuring equipment, a cumbersome and troublesome procedure requiring experienced technicians for accurate measurements. Furthermore, manual measurement is susceptible to errors due to operator technique and human judgment; however, the permissible error margin for connecting plate assemblies is relatively small, typically only a few micrometers, easily eliminated by manual measurement errors, thus reducing the accuracy of the inspection. Utility Model Content

[0004] To address the aforementioned technical problems, this technical solution provides a material leveling gauge for connecting plate assemblies, which reduces inspection steps and lowers inspection difficulty; at the same time, it eliminates measurement errors that may occur during measurement and increases measurement accuracy; thus effectively solving the above problems.

[0005] This utility model is achieved through the following technical solution:

[0006] A material leveling gauge for a connecting plate assembly includes a lower base and an upper bracket fixedly connected as one unit. A connecting plate slot corresponding to the outer contour of the connecting plate is provided between the lower base and the upper bracket. A vertical rod insertion hole is provided on the lower base at a position corresponding to the vertical rod. A buckle slot matching the outer contour of the buckle and the connecting pin is provided on the upper bracket at a position corresponding to the buckle and the connecting pin. An allowable error is provided in the connecting plate slot. The vertical center axis of the vertical rod insertion hole and the vertical center axis of the buckle slot are perpendicular to the horizontal center axis of the connecting plate slot, and the vertical center axis of the vertical rod insertion hole and the vertical center axis of the buckle slot are parallel to each other. After the vertical rod of a qualified connecting plate assembly is inserted into the vertical rod insertion hole, the connecting plate rotates along the vertical rod and is fully engaged in the connecting plate slot, and the buckle and the connecting pin are fully engaged in the buckle slot.

[0007] Furthermore, the connecting plate slot includes a connecting plate bottom groove on the top surface of the lower base that matches the protrusion on the bottom surface of the connecting plate, and a connecting plate top groove on the bottom surface of the upper bracket that matches the top surface of the connecting plate. The connecting plate bottom groove and the connecting plate top groove extend from the edges of the top surface of the lower base and the bottom surface of the upper bracket to designated positions in the middle of the top surface of the lower base and the bottom surface of the upper bracket, respectively, to facilitate the displacement of the connecting plate when it rotates along the vertical rod.

[0008] Furthermore, the connecting plate slot also includes a connecting plate side wall groove provided on the inner side wall of the lower base and the upper slot, which matches the outer contour shape of the connecting plate side wall. The height of the connecting plate side wall groove is equal to the thickness of the connecting plate plus the allowable error.

[0009] Furthermore, the diameter of the vertical rod insertion hole is equal to the diameter of the vertical rod plus an error amount, and the depth of the vertical rod insertion hole is greater than or equal to the length of the vertical rod.

[0010] Furthermore, at the edge of the upper card holder, a through opening is provided at a position corresponding to the vertical rod insertion hole for vertical displacement of the connecting plate assembly.

[0011] Furthermore, the shape of the through opening matches the arc shape of the larger end of the connecting plate.

[0012] Furthermore, an operating groove for removing the connecting plate is provided at the edge of the top surface of the lower base, corresponding to the middle of the connecting plate; the operating groove extends from the edge of the top surface of the lower base to the middle of the top surface of the lower base, and the size of the operating groove is greater than or equal to the width and thickness of an adult finger, so that the finger can be inserted into the operating groove to contact the connecting plate and pull out the connecting plate.

[0013] Furthermore, the lower base and the upper bracket are fixedly connected by a nut, and a fixing hole for nut installation is provided in the middle of the lower base and the upper bracket; the fixing hole in the upper bracket is a through hole, and the fixing hole in the lower base is an internal thread hole, and the central axis of the internal thread hole and the through hole is the same straight line.

[0014] Furthermore, the fixing holes are symmetrically arranged along the centerline of the material leveling fixture along its length, which makes the force between the lower base and the upper bracket uniform and the fixing more stable. Beneficial effects

[0015] The material leveling gauge for connecting plate assemblies proposed in this utility model has the following advantages compared with the prior art:

[0016] In this technical solution, by setting up inspection fixtures, the error amount is set within the fixtures, which can quickly detect whether the perpendicularity and error rate of the connecting plate assembly are within the allowable range, speeding up the inspection speed and increasing the inspection efficiency. At the same time, workers only need to judge that the products that can be loaded into the flat inspection fixture are qualified products, and those that cannot be loaded into the flat inspection fixture are unqualified products, reducing the difficulty of inspection and allowing general staff to operate. Moreover, using the inspection fixture for inspection also eliminates the measurement errors that occur during manual measurement and increases the measurement accuracy.

[0017] Generally, for the detection devices and inspection equipment of the connecting plate assembly, the vertical rod and the handle buckle are compared with a straight line perpendicular to the horizontal plane. In this way, when there is an error in the angle between the vertical rod and the connecting plate, even if the handle buckle and the card slot are in a perpendicular state, it is misjudged as having an error. And when there is an error between the handle buckle and the connecting plate, the amount of error will be magnified or reduced, making the inspection result inaccurate. In this technical solution, the vertical central axis of the vertical rod insertion hole and the vertical central axis of the handle buckle card slot are respectively perpendicular to the horizontal central axis of the connecting plate card slot, and the vertical central axis of the vertical rod insertion hole and the vertical central axis of the handle buckle card slot are arranged parallel to each other, which well avoids the above problems and makes the inspection result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the connecting plate assembly in the background technology.

[0019] Figure 2 It is a schematic overall structural diagram of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the lower base of the present invention.

[0021] Figure 4 It is a top view of the lower base of the present invention.

[0022] Figure 5 For Figure 4 The cross-sectional view in the A-A direction in

[0023] Figure 6 It is a schematic structural diagram of the upper card seat of the present invention.

[0024] Figure 7 It is a top view of the upper card seat of the present invention.

[0025] The reference signs in the drawings are: 1 - connecting plate assembly, 11 - connecting plate, 12 - vertical rod, 13 - handle buckle, 14 - connecting pin, 2 - lower base, 21 - operation slot, 3 - upper card seat, 31 - through opening, 4 - nut, 5 - fixing hole, 6 - connecting plate card slot, 61 - connecting plate bottom slot, 62 - connecting plate side wall slot, 7 - vertical rod insertion hole, 8 - handle buckle card slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Various modifications and improvements to the technical solutions of the present utility model made by those skilled in the art without departing from the design concept of the present utility model should fall within the protection scope of the present utility model. Example

[0027] like Figures 3 to 7 As shown, a material leveling fixture for connecting plate assemblies includes a lower base 2 and an upper clamping seat 3 fixedly connected. The lower base 2 and the upper clamping seat 3 are fixedly connected as a single unit by a nut 4. A fixing hole 5 for installing the nut 4 is provided in the middle of the lower base 2 and the upper clamping seat 3. The fixing hole 5 located in the upper clamping seat 3 is a through hole, and the fixed hole located in the lower base 3 is an internally threaded hole. The central axis of the internally threaded hole and the through hole are aligned with the central axis of the through hole. The fixing holes 5 are symmetrically arranged along the centerline of the material leveling fixture's length direction, ensuring uniform force distribution between the lower base 2 and the upper clamping seat 3, resulting in a more stable fixation.

[0028] A connecting plate slot 6 corresponding to the outer contour of the connecting plate 11 is provided between the lower base 2 and the upper card slot 3, and an allowable error amount is provided in the connecting plate slot 6.

[0029] The connecting plate slot 6 includes a connecting plate bottom slot 61 provided on the top surface of the lower base and matching the protrusion on the bottom surface of the connecting plate, a connecting plate top slot provided on the bottom surface of the upper card seat and matching the top surface of the connecting plate, and a connecting plate side wall slot 62 provided on the inner side wall of the lower base 2 and the upper card seat 3 and matching the outer contour shape of the side wall of the connecting plate.

[0030] The bottom groove 61 and top groove of the connecting plate extend from the edges of the top surface of the lower base and the bottom surface of the upper bracket to designated positions in the middle of the top surface of the lower base and the bottom surface of the upper bracket, respectively, to facilitate the displacement of the connecting plate when it rotates along the vertical rod. The height of the side wall groove 62 of the connecting plate is equal to the thickness of the connecting plate 11 plus the allowable error.

[0031] On the lower base 2, a vertical rod insertion hole 7 is provided at a position corresponding to the vertical rod 12; the diameter of the vertical rod insertion hole 7 is equal to the diameter of the vertical rod 12 plus an error amount, and the depth of the vertical rod insertion hole 7 is greater than or equal to the length of the vertical rod 12. In this embodiment, the vertical rod insertion hole 7 directly penetrates the lower base 2.

[0032] On the upper card holder 3, a buckle slot 8 is provided at a position corresponding to the buckle 13 and the connecting pin 14, which matches the outer contour of the buckle and the connecting pin.

[0033] The vertical center axis of the vertical rod insertion hole 7 and the vertical center axis of the buckle slot 8 are perpendicular to the horizontal center axis of the connecting plate slot 6, and the vertical center axis of the vertical rod insertion hole 7 and the vertical center axis of the buckle slot 8 are parallel to each other.

[0034] In existing testing devices, the vertical rod 12 and the buckle 13 are compared to a straight line perpendicular to the horizontal plane. Therefore, if there is an error in the angle between the vertical rod 12 and the connecting plate 11, even if the buckle 13 and the connecting plate 11 are perpendicular, it is mistakenly considered an error, leading to inaccurate test results. Here, by setting the vertical center axis of the vertical rod insertion hole 7 and the vertical center axis of the buckle slot 8 perpendicular to the horizontal center axis of the connecting plate slot 6, and by making the vertical center axes of the vertical rod insertion hole 7 and the buckle slot 8 parallel to each other, the above problem is effectively avoided, resulting in more accurate test results.

[0035] After the vertical rod 12 of the qualified connecting plate assembly 1 is inserted into the vertical rod insertion hole 7, the connecting plate 11 rotates along the vertical rod 12 and is snapped into the connecting plate slot 6, and is completely fitted with the connecting plate slot 6. The buckle 13 and the connecting pin 14 are snapped into the buckle slot 8 and are completely fitted with the buckle slot 8.

[0036] At the edge of the upper bracket 3, a through opening 31 is provided at a position corresponding to the vertical rod insertion hole 7 for vertical displacement of the connecting plate assembly 1; the shape of the through opening 31 matches the arc of the large end of the connecting plate 11. This facilitates vertical displacement of the connecting plate assembly 1 when inserting or removing the vertical rod insertion hole 7.

[0037] An operating groove 21 for removing the connecting plate 11 is provided at the edge of the top surface of the lower base 2, corresponding to the middle of the connecting plate 11. The operating groove 21 extends from the edge of the top surface of the lower base 2 to the middle of the top surface of the lower base 2. The size of the operating groove 21 is greater than or equal to the width and thickness of an adult finger, so that the finger can be inserted into the operating groove 21 to contact the connecting plate 11 and pull out the connecting plate 11.

Claims

1. A material leveling gauge for connecting plate assemblies, characterized in that: The system includes a lower base (2) and an upper bracket (3) that are fixedly connected as one unit. A connecting plate slot (6) corresponding to the outer contour of the connecting plate (11) is provided between the lower base (2) and the upper bracket (3). A vertical rod insertion hole (7) is provided on the lower base (2) at a position corresponding to the vertical rod (12). A buckle slot (8) matching the outer contour of the buckle (13) and the connecting pin (14) is provided on the upper bracket (3) at a position corresponding to the buckle (13) and the connecting pin (14). An allowable error is provided in the connecting plate slot (6). The vertical center axis of the vertical rod insertion hole (7) and the vertical center axis of the buckle slot (8) are perpendicular to the horizontal center axis of the connecting plate slot (6), and the vertical center axis of the vertical rod insertion hole (7) and the vertical center axis of the buckle slot (8) are parallel to each other. After the vertical rod (12) of the qualified connecting plate assembly (1) is inserted into the vertical rod insertion hole (7), the connecting plate (11) rotates along the vertical rod (12) and is inserted into the connecting plate slot (6) and is completely fitted with the connecting plate slot (6). The buckle (13) and the connecting pin (14) are inserted into the buckle slot (8) and are completely fitted with the buckle slot (8).

2. A material leveling gauge for a connecting plate assembly according to claim 1, characterized in that: The connecting plate slot (6) includes a connecting plate bottom slot (61) provided on the top surface of the lower base (2) and matching the protrusion on the bottom surface of the connecting plate (11), and a connecting plate top slot provided on the bottom surface of the upper card seat (3) and matching the top surface of the connecting plate (11). The connecting plate bottom slot (61) and the connecting plate top slot extend from the edge of the top surface of the lower base (2) and the bottom surface of the upper card seat (3) to a designated position in the middle of the top surface of the lower base (2) and the bottom surface of the upper card seat (3), respectively.

3. A material leveling gauge for a connecting plate assembly according to claim 2, characterized in that: The connecting plate slot (6) also includes a connecting plate side wall groove (62) provided on the inner side wall of the lower base (2) and the upper slot (3), which matches the outer contour shape of the side wall of the connecting plate (11). The height of the connecting plate side wall groove (62) is equal to the thickness of the connecting plate (11) plus the allowable error.

4. A material leveling gauge for a connecting plate assembly according to claim 1, characterized in that: The diameter of the vertical rod insertion hole (7) is equal to the diameter of the vertical rod (12) plus the error amount, and the depth of the vertical rod insertion hole (7) is greater than or equal to the length of the vertical rod (12).

5. A material leveling gauge for a connecting plate assembly according to claim 1, characterized in that: At the edge of the upper card holder (3), a through opening (31) is provided at the position corresponding to the vertical rod insertion hole (7) for the vertical displacement of the connecting plate assembly (1).

6. A material leveling gauge for a connecting plate assembly according to claim 5, characterized in that: The shape of the through opening (31) matches the arc shape of the large end of the connecting plate (11).

7. A material leveling gauge for a connecting plate assembly according to claim 1, characterized in that: At the edge of the top surface of the lower base (2), at a position corresponding to the middle of the connecting plate (11), there is an operation groove (21) for removing the connecting plate (11); the operation groove (21) extends from the edge of the top surface of the lower base (2) to the middle of the top surface of the lower base (2), and the size of the operation groove (21) is greater than or equal to the width and thickness of an adult finger.

8. A material leveling gauge for a connecting plate assembly according to claim 1, characterized in that: The lower base (2) and the upper bracket (3) are fixedly connected by a nut (4). The middle part of the lower base (2) and the upper bracket (3) is provided with a fixing hole (5) for installing the nut (4). The fixing hole (5) located in the upper bracket (3) is a through hole, and the fixed hole (5) located in the lower base (2) is an internal thread hole. The central axis of the internal thread hole and the through hole are on the same straight line.

9. A material leveling gauge for a connecting plate assembly according to claim 8, characterized in that: The fixing holes (5) are symmetrically arranged along the centerline of the material leveling gauge along its length.

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