Tool for quickly checking critical dimension of injection molded part
By designing a tooling for rapid inspection of critical dimensions of injection molded parts, and utilizing the coordination of position adjustment and clamping components, rapid and accurate inspection of critical dimensions of injection molding sections is achieved. This solves the problems of low inspection efficiency and poor accuracy in existing technologies, and ensures effective fixation of the injection molding section to the sheet metal bracket.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 昆山沪光汽车电器股份有限公司
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-28
AI Technical Summary
Existing technologies make it difficult to quickly and accurately inspect the critical dimensions of injection-molded joints, resulting in poor fixing effects and affecting the functional stability of the wheel speed line.
A tooling for quickly inspecting the critical dimensions of injection molded parts has been designed, including a fixed base, a fixed upright, a movable upright, a clamping assembly, a position adjustment assembly, an elastic lifting assembly, and scale markings. By adjusting the position of the movable upright and the coordination of the clamping assembly, the injection molded section can be inspected quickly and accurately.
This improves the speed and accuracy of inspecting key dimensions of the injection molding section, ensures effective fixation between the injection molding section and the sheet metal bracket, and guarantees the functional stability of the wheel speed line.
Smart Images
Figure CN224175774U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of inspection tooling technology, and in particular to a tooling for quickly inspecting the critical dimensions of injection molded parts. Background Technology
[0002] Wheel speed cables are important wiring harnesses used in automobiles to transmit signals from wheel speed sensors, and they play a crucial role in the safe driving of vehicles.
[0003] Wheel speed lines typically have injection-molded joints installed at their ends. During use, these joints need to be secured to a sheet metal bracket. This securing process usually relies on the fit between the injection-molded joint's critical dimensions and the bracket. When the critical dimensions of the injection-molded joint are smaller than specified values, the fit between the joint and the bracket is poor, resulting in a weak fixation and potentially causing the wheel speed line to malfunction. Conversely, when the critical dimensions are larger than specified values, it becomes difficult for operators to secure the joint to the bracket. Therefore, checking the critical dimensions of the injection-molded joint is crucial.
[0004] Due to the irregular shape of injection-molded sections, existing conventional inspection methods typically involve checking each section individually with vernier calipers. However, this method is time-consuming and prone to errors due to human factors. Additionally, projectors are used for random sampling of some injection-molded sections, but limitations of projectors make large-scale inspections inconvenient. Therefore, existing inspection methods are not well-suited for quickly checking the critical dimensions of injection-molded sections. Utility Model Content
[0005] To improve the speed of inspecting critical dimensions of injection molded parts, this application provides a tooling for quickly inspecting critical dimensions of injection molded parts.
[0006] This application provides a tooling for quickly inspecting critical dimensions of injection molded parts, employing the following technical solution:
[0007] A tooling for quickly inspecting the critical dimensions of injection molded parts includes a fixed base, on which fixed uprights and movable uprights are spaced apart. Both the fixed and movable uprights are provided with clamping components for holding injection sections of different critical dimensions. The fixed base contains a position adjustment component for moving the movable uprights. The fixed base also has an elastic lifting component for placing and lifting the injection sections.
[0008] By adopting the above technical solutions, the position adjustment component helps to adjust the position of the movable upright, the elastic lifting component helps to place the injection section and elastically lift the injection section, and the clamping component, in conjunction with the elastic lifting component, helps to clamp and fix the injection section with qualified critical dimensions in the set position, thereby helping to improve the speed of checking the critical dimensions of the injection section.
[0009] In one specific implementation, the clamping assembly includes a fixed clamping plate and a movable clamping plate, the fixed clamping plate being disposed on the side wall of the fixed upright facing the movable upright, and the movable clamping plate being disposed on the side wall of the movable upright facing the fixed upright.
[0010] By employing the above technical solution, the position adjustment component facilitates the adjustment of the position of the movable upright, thereby facilitating the adjustment of the distance between the fixed clamp and the movable clamp. The elastic lifting component helps to elastically lift the injection section, positioning it between the fixed and movable clamps. The operator then presses down to move the injection section downwards. The fixed and movable clamps help to clamp and fix the injection section with qualified critical dimensions in the designated position, thus improving the speed of checking the critical dimensions of the injection section.
[0011] In one specific implementation, the fixed clamping plate and the movable clamping plate are provided with a first clamping slope, a second clamping slope, and a third clamping slope at the same position from top to bottom. The distance between the two first clamping slopes, the two second clamping slopes, and the two third clamping slopes gradually decreases from top to bottom. The distance between the bottom ends of the two first clamping slopes is the same as the distance between the top ends of the two second clamping slopes, and the distance between the bottom ends of the two second clamping slopes is the same as the distance between the top ends of the two third clamping slopes.
[0012] By adopting the above technical solution, the distance between the fixed clamping plate and the movable clamping plate is adjusted so that the distance between the bottom ends of the two second clamping slopes is equal to the qualified critical dimension. This helps to clamp and fix injection molding sections with qualified critical dimensions between the two second clamping slopes. It also helps to clamp and fix injection molding sections with critical dimensions greater than the qualified dimension between the two first clamping slopes, and helps to clamp and fix injection molding sections with critical dimensions smaller than the qualified dimension between the two third clamping slopes. This, in turn, helps to improve the speed of checking the critical dimensions of injection molding sections.
[0013] In one specific implementation, the elastic lifting assembly includes a column, a lifting plate, and a support spring. The column is mounted on the fixed base, the lifting plate is slidably sleeved on the column, the lifting plate is provided with a slot for the injection molding section to be inserted, and the support spring is sleeved on the column and is used to support the lifting plate.
[0014] By adopting the above technical solution, the slot helps the injection molding section to be snapped onto the lifting plate, and the support spring helps to provide elastic support to the lifting plate, thereby helping the lifting plate and the support spring to provide elastic support to the injection molding section.
[0015] In one specific implementation, a limiting block for limiting the lifting plate is provided at the end of the column away from the fixed base.
[0016] By adopting the above technical solution, the limiting block helps to restrict the movement range of the lifting plate on the column, thereby helping to prevent the lifting plate from falling off the top of the column.
[0017] In one specific implementation, the position adjustment assembly includes an adjustment screw and an adjustment knob. The fixed base is provided with a moving groove for the movable upright to move. The adjustment screw is rotatably disposed in the fixed base and is threadedly connected to the movable upright. The adjustment knob is disposed at one end of the adjustment screw that extends out of the fixed base.
[0018] By adopting the above technical solution, the adjustment knob helps to drive the adjustment screw to rotate, which in turn helps the movable upright to move along the length of the adjustment screw in the moving groove, thereby helping to adjust the position of the movable upright.
[0019] In one specific implementation, stabilizing blocks are provided on the opposite side walls of the bottom of the movable upright for maintaining the stability of the movable upright, and the fixed base is provided with a snap-fit groove for the stabilizing blocks to snap into, and the snap-fit groove is connected to the moving groove.
[0020] By adopting the above technical solution, the use of stabilizing blocks helps to improve the stability of the movable upright, thereby helping to minimize the shaking of the movable upright and thus improving the accuracy of the inspection of the key dimensions of the injection molding section.
[0021] In one specific implementation, a scale mark is provided on the top surface of the fixed base on one side of the movable groove, and an indicator through hole is provided on the movable upright to point to the scale mark.
[0022] By adopting the above technical solution, the use of indicator through holes in conjunction with scale markings helps to improve the accuracy of adjusting the position of the movable upright, thereby helping to further improve the accuracy of checking the key dimensions of the injection molding section.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. This application, through the setting of a position adjustment component, an elastic lifting component, and a clamping component, provides a position adjustment component to help adjust the position of the movable upright, an elastic lifting component to help the injection section be snapped in and elastically lifted, and a clamping component, in conjunction with the elastic lifting component, to help clamp and fix the injection section with qualified critical dimensions in a set position, thereby helping to improve the speed of checking the critical dimensions of the injection section.
[0025] 2. By setting up stabilizing blocks, this application helps to improve the stability of the movable upright, thereby helping to minimize the shaking of the movable upright and thus helping to improve the accuracy of checking the key dimensions of the injection molding section;
[0026] 3. This application, through the setting of scale marks and indicator through holes, the indicator through holes in conjunction with the scale marks help to improve the accuracy of adjusting the position of the movable upright, thereby helping to further improve the accuracy of checking the key dimensions of the injection molding section. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0028] Figure 2 It is a schematic diagram showing the specific internal structure of the fixed base.
[0029] Figure 3 It is a schematic diagram showing the specific structure of the fixed clamp and the movable clamp.
[0030] Explanation of reference numerals in the attached drawings: 1. Fixed base; 2. Fixed upright; 3. Movable upright; 4. Clamping assembly; 41. Fixed clamping plate; 42. Movable clamping plate; 5. Position adjustment assembly; 51. Adjusting screw; 52. Adjusting knob; 6. Elastic lifting assembly; 61. Column; 62. Lifting plate; 63. Support spring; 7. First clamping slope; 8. Second clamping slope; 9. Third clamping slope; 10. Limiting block; 11. Moving groove; 12. Stabilizing block; 13. Snap-fit groove; 14. Scale mark; 15. Indicating through hole; 16. Slot. Detailed Implementation
[0031] The present application will be further described in detail below with reference to the accompanying drawings.
[0032] This application discloses a tooling for quickly inspecting critical dimensions of injection molded parts, referring to... Figure 1 and Figure 2 The system includes a fixed base 1, on the top surface of which a fixed upright 2 is fixedly mounted. A movable groove 11 is formed on the top surface of the fixed base 1, and a movable upright 3 is movably placed inside the movable groove 11, with the movable upright 3 spaced apart from the fixed upright 2. Stabilizing blocks 12 are integrally formed on opposite side walls at the bottom of the movable upright 3. A snap-fit groove 13, communicating with the movable groove 11, is formed inside the fixed base 1, and the stabilizing blocks 12 are movably snapped into the snap-fit groove 13.
[0033] Reference Figure 1 and Figure 3 A clamping assembly 4 is provided on both the fixed upright 2 and the movable upright 3. The clamping assembly 4 includes a fixed clamping plate 41 and a movable clamping plate 42. The fixed clamping plate 41 is integrally formed on the side wall of the fixed upright 2 facing the movable upright 3, and the movable clamping plate 42 is integrally formed on the side wall of the movable upright 3 facing the fixed upright 2. At the same position on the fixed clamping plate 41 and the movable clamping plate 42, a first clamping slope 7, a second clamping slope 8, and a third clamping slope 9 are arranged sequentially from top to bottom. The distance between the two first clamping slopes 7, the two second clamping slopes 8, and the two third clamping slopes 9 gradually decreases from top to bottom. The distance between the bottom ends of the two first clamping slopes 7 is the same as the distance between the top ends of the two second clamping slopes 8, and the distance between the bottom ends of the two second clamping slopes 8 is the same as the distance between the top ends of the two third clamping slopes 9.
[0034] Reference Figure 1 and Figure 3 The fixed base 1 is equipped with a position adjustment component 5, which includes an adjustment screw 51 and an adjustment knob 52. The adjustment screw 51 is horizontally rotatably installed in the fixed base 1 and is threadedly connected to the bottom end of the movable upright 3. The adjustment knob 52 is fixedly installed at the end of the adjustment screw 51 that extends out of the fixed base 1. A scale mark 14 is provided on the top surface of the fixed base 1. The scale mark 14 is located on one side of the moving groove 11 and is set along the length direction of the moving groove 11. An indicator through hole 15 is provided on the movable upright 3.
[0035] Reference Figure 1 and Figure 3 The operator rotates the adjustment knob 52, causing the adjustment screw 51 to rotate. This causes the movable upright 3 to move along the length of the adjustment screw 51 under the limiting action of the moving groove 11 until the value of the scale mark 14 pointed to by the indicator through hole 15 is the same as the qualified critical dimension value. This completes the adjustment of the position of the movable upright 3, so that the distance between the bottom ends of the two second clamping slopes 8 is equal to the size of the critical dimension.
[0036] Reference Figure 1 and Figure 2 The fixed base 1 is also equipped with an elastic lifting assembly 6, which includes a column 61, a lifting plate 62, and a supporting spring 63. In this embodiment, multiple columns 61 and supporting springs 63 are provided. Multiple columns 61 are fixedly installed on the top surface of the fixed base 1 and located around the fixed upright 2 and the movable upright 3. The lifting plate 62 is slidably sleeved on the multiple columns 61. A slot 16 is provided through the lifting plate 62. Each supporting spring 63 is fixedly sleeved around the circumference of one column 61, and the bottom end of the supporting spring 63 is connected to the fixed base 1, while the top end of the supporting spring 63 is connected to the lifting plate 62. A limit block 10 is fixedly installed at the top end of each column 61.
[0037] Reference Figure 1 and Figure 2 After the position of the movable upright 3 is adjusted, the operator places the injection section to be inspected into the slot 16, so that the lifting plate 62 provides elastic support to the injection section to be inspected, and the placed injection section is positioned between the fixed clamping plate 41 and the movable clamping plate 42. After the injection section is placed, the operator presses the lifting plate 62, causing the lifting plate 62 and the injection section to move downwards simultaneously, so that the injection section moves downwards between the fixed clamping plate 41 and the movable clamping plate 42.
[0038] Reference Figure 1 and Figure 3 If the injection molding section stops between the two first clamping slopes 7 and cannot continue to move downwards during the downward movement, it can be determined that the critical dimension of the injection molding section is greater than the qualified dimension; if the injection molding section stops between the two second clamping slopes 8 and cannot continue to move downwards during the downward movement, it can be determined that the critical dimension of the injection molding section is equal to the qualified dimension; if the injection molding section stops between the two third clamping slopes 9 and cannot continue to move downwards during the downward movement, it can be determined that the critical dimension of the injection molding section is less than the qualified dimension.
[0039] Reference Figure 1 and Figure 2 After the inspection is completed, the operator stops pressing on the lifting plate 62. Under the elastic force of the support spring 63, the lifting plate 62 moves upward along the column 61, causing the injection molding section to move to its initial position, thus completing the inspection of the key dimensions of the injection molding section. During the upward movement of the lifting plate 62, the limiting block 10 helps to limit the upward movement range of the lifting plate 62, thereby helping to prevent the lifting plate 62 from detaching from the top of the column 61.
[0040] The implementation principle of this application embodiment is as follows: the operator rotates the adjustment knob 52 to rotate the adjustment screw 51, thereby causing the movable upright 3 to move along the length direction of the adjustment screw 51 under the combined action of the moving groove 11 and the stabilizing block 12 until the value of the scale mark 14 pointed to by the indicator through hole 15 is the same as the qualified key dimension value, thus completing the adjustment of the position of the movable upright 3, so that the distance between the bottom ends of the two second clamping slopes 8 is equal to the size of the key dimension.
[0041] After the position of the movable upright 3 is adjusted, the operator places the injection section to be inspected into the slot 16, so that the lifting plate 62 provides elastic support to the injection section to be inspected, and the placed injection section is positioned between the fixed clamping plate 41 and the movable clamping plate 42. After the injection section is placed, the operator presses the lifting plate 62, causing the lifting plate 62 and the injection section to move downwards simultaneously, so that the injection section moves downwards between the fixed clamping plate 41 and the movable clamping plate 42. When the injection section stops between the two first clamping slopes 7 and cannot move further downwards during the downward movement, it can be determined that the critical dimension of the injection section is greater than the qualified dimension; when the injection section stops between the two second clamping slopes 8 and cannot move further downwards during the downward movement, it can be determined that the critical dimension of the injection section is equal to the qualified dimension; when the injection section stops between the two third clamping slopes 9 and cannot move further downwards during the downward movement, it can be determined that the critical dimension of the injection section is less than the qualified dimension.
[0042] After the inspection is completed, the operator stops pressing the lifting plate 62. Under the action of the elastic force of the support spring 63, the lifting plate 62 moves upward along the column 61, so that the injection section moves to the initial position, completing the inspection of the key dimensions of the injection section.
[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A tooling for quickly inspecting critical dimensions of injection molded parts, characterized in that: Includes a fixed base (1), on which fixed uprights (2) and movable uprights (3) are spaced apart. The fixed uprights (2) and the movable uprights (3) are provided with clamping components (4) for clamping injection molding sections of different key dimensions. The fixed base (1) is provided with a position adjustment component (5) for moving the movable uprights (3). The fixed base (1) is provided with an elastic lifting component (6) for placing and lifting the injection molding sections.
2. The tooling for quickly inspecting critical dimensions of injection molded parts according to claim 1, characterized in that: The clamping assembly (4) includes a fixed clamping plate (41) and a movable clamping plate (42). The fixed clamping plate (41) is disposed on the side wall of the fixed upright (2) facing the movable upright (3), and the movable clamping plate (42) is disposed on the side wall of the movable upright (3) facing the fixed upright (2).
3. The tooling for quickly inspecting critical dimensions of injection molded parts according to claim 2, characterized in that: The fixed clamping plate (41) and the movable clamping plate (42) are provided with a first clamping slope (7), a second clamping slope (8) and a third clamping slope (9) at the same position from top to bottom. The distance between the two first clamping slopes (7), the two second clamping slopes (8) and the two third clamping slopes (9) gradually decreases from top to bottom. The distance between the bottom ends of the two first clamping slopes (7) is the same as the distance between the top ends of the two second clamping slopes (8), and the distance between the bottom ends of the two second clamping slopes (8) is the same as the distance between the top ends of the two third clamping slopes (9).
4. The tooling for quickly inspecting critical dimensions of injection molded parts according to claim 1, characterized in that: The elastic lifting assembly (6) includes a column (61), a lifting plate (62), and a support spring (63). The column (61) is mounted on the fixed base (1). The lifting plate (62) is slidably mounted on the column (61). The lifting plate (62) is provided with a slot (16) for the injection molding section to be inserted. The support spring (63) is mounted on the column (61) and is used to support the lifting plate (62).
5. The tooling for quickly inspecting critical dimensions of injection molded parts according to claim 4, characterized in that: The end of the column (61) away from the fixed base (1) is provided with a limiting block (10) for limiting the lifting plate (62).
6. The tooling for quickly inspecting critical dimensions of injection molded parts according to claim 1, characterized in that: The position adjustment assembly (5) includes an adjustment screw (51) and an adjustment knob (52). The fixed base (1) is provided with a moving groove (11) for the movable upright (3) to move. The adjustment screw (51) is rotatably disposed in the fixed base (1) and is threadedly connected to the movable upright (3). The adjustment knob (52) is disposed at one end of the adjustment screw (51) that extends out of the fixed base (1).
7. The tooling for quickly inspecting critical dimensions of injection molded parts according to claim 6, characterized in that: On the opposite side walls at the bottom of the movable upright (3), there are stabilizing blocks (12) for maintaining the stability of the movable upright (3). The fixed base (1) is provided with a snap-fit groove (13) for the stabilizing block (12) to be snapped into, and the snap-fit groove (13) is connected to the moving groove (11).
8. A tooling for quickly inspecting critical dimensions of injection molded parts according to claim 6, characterized in that: A scale mark (14) is provided on the top surface of the fixed base (1) on one side of the moving groove (11), and an indicator through hole (15) pointing to the scale mark (14) is provided on the movable upright (3).