Measuring tool for detecting parallelism of axial leads of two holes
By designing a two-hole axis center parallelism detection gauge, and using the combination of detection device and unloading device, the problem of difficulty in measuring the parallelism of the guide pin hole of the automobile brake bracket is solved in traditional methods, and the detection is simple, efficient and low-cost. Suitable for testing of multiple varieties of products.
Patent Information
- Application Number
- CN202420021375.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-03
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-03
AI Technical Summary
Traditional methods are difficult to directly measure the parallelism of the centerline of the two guide pin holes on the car brake bracket, which is inconvenient to detect, inefficient and costly.
A two-hole axis center parallelism detection measuring tool is designed, including a detection device and a discharge device. Through the left and right measuring rods, support blocks, guide rods, springs and locking screws, the parallelism is detected. Ensure detection accuracy and efficiency.
It realizes the simplicity and efficiency of the inspection method, reduces the inspection cost, is suitable for the inspection of multiple varieties of products, and is suitable for mass production site use.
Smart Images
Figure CN222144020U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile parts detection, and relates to a two-hole axis centerline parallelism detection measuring tool. Background Art
[0002] The bracket is a key component of the automobile brake. Since the part is a special-shaped part with a relatively complex structure, the parallelism between the guide pin holes on the automobile brake bracket is a key characteristic. Once the tolerance is exceeded, it will affect the sliding torque value of the brake caliper and thus affect the braking effect. Since the centerline parallelism of the two guide pin holes is an abstract spatial dimension and cannot be directly measured, the traditional method requires the use of special devices to align the parts, which makes detection inconvenient and inefficient; or it requires the use of a three-coordinate measuring machine for detection, which has high detection costs. Utility Model Content
[0003] In view of this, the purpose of the utility model is to provide a two-hole axis parallelism detection gauge, which can complete the detection of multiple varieties of products with one set of gauges, making the detection method simple, the detection efficiency high, and the detection result reliable.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a two-hole axis parallelism detection measuring tool, including a detection device and a discharge device, the detection device includes a left measuring rod, a support block, a right measuring rod and a first locking screw, and the discharge device includes a left discharge structure, a guide rod, a spring, a right discharge structure, a second locking screw and a connecting block;
[0005] The left measuring rod is installed in the corresponding hole at the left end of the supporting block and is locked by the first locking screw. The right measuring rod is slidably installed in the groove at the right end of the supporting block and is loosened and tightened by the first screw. The left unloading structure and the right unloading structure are placed on the inner sides of the left measuring rod and the right measuring rod, and are correspondingly arranged in the holes of the supporting block. The lower end of the left unloading structure is sleeved on the left measuring rod, and the lower end of the right unloading structure is provided with a groove, which is sleeved on the right measuring rod.
[0006] Optionally, the left unloading structure and the right unloading structure are respectively arranged on both sides of the guide rod, and the upper ends of the left unloading structure, the right unloading structure and the guide rod are all installed on the connecting block.
[0007] Optionally, the lower end of the guide rod passes through a corresponding hole of the support block.
[0008] Optionally, the left unloading structure and the right unloading structure are fixed to the connecting block by a second locking screw.
[0009] Optionally, the spring is sleeved on the guide rod and is located between the connecting block and the supporting block.
[0010] Optionally, the matching accuracy between the guide rod and the corresponding holes of the support block is H6 level.
[0011] Optionally, the verticality requirement between the left measuring rod and the right measuring rod and the mounting surface of the support block is 0.008 mm, thereby ensuring that the parallelism requirement between the two is 0.02 mm.
[0012] Optionally, the clearance between the outer diameters of the left measuring rod and the right measuring rod and the guide hole of the workpiece is 1 / 2 of the parallelism requirement.
[0013] Optionally, the connecting block and the supporting block are arc-shaped structures.
[0014] The beneficial effects of the utility model are as follows: the utility model is a two-hole axis centerline parallelism detection measuring tool, which has a simple structure, low measuring tool manufacturing cost, simple detection method, small space occupation, low detection cost, can be operated with one hand, is easy and flexible to use, and is suitable for the detection of multiple products with similar structures. It has strong versatility and is very suitable for use in large-scale production sites.
[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 It is a side view and CC sectional view of the utility model; wherein, Figure a is a side view, and Figure b is a CC sectional view of Figure a;
[0019] Figure 3 is a schematic diagram of the detected element;
[0020] Figure 4 This is a schematic diagram of the unloading part structure.
[0021] Reference numerals: left measuring rod 1, left unloading structure 2, support block 3, guide rod 4, spring 5, right unloading structure 6, right measuring rod 7, first locking screw 8, connecting block 9, workpiece 10, second locking screw 11;
[0022] Among them, A1 is the diameter of the workpiece guide hole, and A2 is the measured parallelism of the workpiece. DETAILED DESCRIPTION
[0023] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.
[0024] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.
[0025] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0026] See also Figure 1 to Figure 4, is a two-hole axis parallelism detection measuring tool, including a detection device and a discharge device, the detection device includes a left measuring rod 1, a support block 3, a right measuring rod 7 and a first locking screw 8, the discharge device includes a left discharge structure 2, a guide rod 4, a spring 5, a right discharge structure 6, a second locking screw 11 and a connecting block 9; the left measuring rod 1 is installed in the corresponding hole at the left end of the support block 3 and is locked by the first locking screw 8, the right measuring rod 7 is slidably installed in the groove at the right end of the support block 3, and is loosened and tightened by the first screw; the left discharge structure 2 and the right discharge structure 6 are placed on the inner side of the left measuring rod 1 and the right measuring rod 7, and are correspondingly arranged in the hole of the support block 3, the lower end of the left discharge structure 2 is sleeved on the left measuring rod 1, and the lower end of the right discharge structure 6 is provided with a groove, which is sleeved on the right measuring rod 7 On the top, the left unloading structure 2 and the right unloading structure 6 are respectively arranged on both sides of the guide rod 4, and the upper ends of the left unloading structure 2, the right unloading structure 6 and the guide rod 4 are all installed on the connecting block 9, the lower end of the guide rod 4 passes through the corresponding hole of the support block 3, the left unloading structure 2 and the right unloading structure 6 are fixed to the connecting block by the second locking screw 11, the spring 5 is sleeved on the guide rod 4 and is between the connecting block 9 and the support block 3, the matching accuracy of the corresponding holes of the guide rod 4 and the support block 3 is H6 level, the verticality requirement of the left measuring rod 1 and the right measuring rod 7 and the mounting surface of the support block 3 is 0.008mm, so as to ensure the parallelism requirement between the two is 0.02mm, and the gap between the outer diameter of the left measuring rod 1 and the right measuring rod 7 and the guide hole diameter A1 of the workpiece 10 is 1 / 2 of the parallelism requirement.
[0027] In this embodiment, the connecting block 9 and the supporting block 3 are arc-shaped structures, which improves the comfort of holding the measuring tool with one hand during the measurement process, avoids fatigue, and improves the detection efficiency.
[0028] In this embodiment, air outlet holes are passed through the center of the left measuring rod 1 and the right measuring rod 7 to prevent air from being difficult to be discharged due to too small a gap when the left and right measuring rods 7 are inserted into the guide holes of the workpiece 10, thereby improving the detection efficiency.
[0029] When the utility model is used, the following steps are included:
[0030] Step 1: Press Figure 1 As shown, adjust the distance between the right measuring rod 7 and the center of the two guide holes of the workpiece 10, and tighten the second locking screw 11;
[0031] Step 2: If the left measuring rod 1 and the right measuring rod 7 can be easily inserted into the guide pin hole of the workpiece 10, it indicates that the measured parallelism A2 of the workpiece 10 is qualified;
[0032] Step 3: Hold and compress the connecting block 9 and the supporting block 3 by hand, and the left unloading structure 2 and the right unloading structure 6 move upward to force the left measuring rod 1 and the right measuring rod 7 to smoothly withdraw from the measuring tool and return to their original positions.
[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.
Claims
1. A two-hole axis parallelism detection measuring tool, characterized by: It includes a detection device and a discharge device, wherein the detection device includes a left measuring rod, a support block, a right measuring rod and a first locking screw, and the discharge device includes a left discharge structure, a guide rod, a spring, a right discharge structure, a second locking screw and a connecting block; The left measuring rod is installed in the corresponding hole at the left end of the supporting block and is locked by the first locking screw. The right measuring rod is slidably installed in the groove at the right end of the supporting block and is loosened and tightened by the first screw. The left unloading structure and the right unloading structure are placed on the inner sides of the left measuring rod and the right measuring rod, and are correspondingly arranged in the holes of the supporting block. The lower end of the left unloading structure is sleeved on the left measuring rod, and the lower end of the right unloading structure is provided with a groove, which is sleeved on the right measuring rod.
2. A two-hole axis parallelism detection measuring tool according to claim 1, characterized in that: The left unloading structure and the right unloading structure are respectively arranged on both sides of the guide rod, and the upper ends of the left unloading structure, the right unloading structure and the guide rod are all installed on the connecting block.
3. A two-hole axis parallelism detection measuring tool according to claim 2, characterized in that: The lower end of the guide rod passes through the corresponding hole of the support block.
4. A two-hole axis parallelism detection measuring tool according to claim 2, characterized in that: The left unloading structure and the right unloading structure are fixed on the connecting block by means of a second locking screw.
5. The two-hole axis parallelism detection measuring tool according to claim 2, characterized in that: The spring is sleeved on the guide rod and is located between the connecting block and the supporting block.
6. A two-hole axis parallelism detection measuring tool according to claim 2, characterized in that: The matching accuracy between the guide rod and the corresponding holes of the support block is H6 level.
7. The two-hole axis parallelism detection measuring tool according to claim 1, characterized in that: The verticality requirement between the left measuring rod and the right measuring rod and the mounting surface of the support block is 0.008mm, thereby ensuring that the parallelism requirement between the two is 0.02mm.
8. The two-hole axis parallelism detection measuring tool according to claim 1, characterized in that: The clearance between the outer diameters of the left measuring rod and the right measuring rod and the guide hole of the workpiece is 1 / 2 of the parallelism requirement.
9. The two-hole axis parallelism detection measuring tool according to claim 1, characterized in that: The connecting block and the supporting block are arc-shaped structures.