Lightweight testing fixture for processing load-carrying drum

Abstract

The utility model provides a lightweight testing fixture for processing a load-carrying drum, and relates to the technical field of brake drum detection equipment, the lightweight testing fixture comprises a chassis and a positioning ring, the chassis and the positioning ring are made of nylon materials, the outer surface of the chassis is provided with a plurality of first through holes, the outer surface of the chassis is provided with two second through holes, and the first through holes are communicated with the second through holes. A second bolt is slidably inserted into the inner wall of the second through hole, a nut is in threaded connection with the outer surface of the second bolt, a detection pin is slidably inserted into the inner wall of the first through hole, a first bolt is in threaded connection with the inner wall of the detection pin, and two third through holes are formed in the outer surface of the positioning ring; according to the utility model, the chassis and the positioning ring are made of nylon materials, so that the overall weight of the detection tool can be greatly reduced, the detection process of moving the chassis and the positioning ring is simple, the detection tool is suitable for field use in a workshop, the working hours are saved, and the operation difficulty and the labor intensity of workers are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brake drum detection equipment, in particular to a lightweight inspection tool for processing load-bearing drums. Background Art

[0002] The load drum is the main brake component of heavy-duty vehicles. On the basis of being able to withstand changes in harsh environments, it is also necessary to ensure the stability of various characteristic indicators. The assembly size is particularly important. Therefore, when manufacturing, casting materials and processing performance must be taken seriously. Stabilizing the position tolerance of the workpiece and improving the operator's effective detection action are both effective methods to control the quality and efficiency of the workpiece.

[0003] Due to its structural reasons (large volume and mass), the load drum requires a large diameter of the position gauge, usually around 380MM to 400MM. The position gauge is heavy, weighing between 12KG and 20KG. When operators use the gauge to inspect products, the labor intensity is high.

[0004] When the operator is testing, he needs to put the load drum on the testing platform with the end face facing up, hold the position handle flat with both hands, find the position of the load drum positioning hole and the installation hole, and put it vertically on the end face to be tested so that it contacts the corresponding hole. Press down the gauge with your hand. When the bottom surface of the position gauge is completely in contact with the end face of the workpiece, the measurement is qualified. Gently shake the position handle to separate the gauge from the workpiece. The larger the mass of the position gauge, the more difficult the detection action is. In serious cases, accidents may occur during measurement, or the measuring pin of the gauge may break, resulting in low detection efficiency when using the gauge, high labor intensity for the operator, and the risk of damage to the detection tool and bumps on the workpiece. Utility Model Content

[0005] The utility model aims to solve the problems of low detection efficiency, high labor intensity of operators, damage to detection tools and risk of workpiece bumps when using a checking fixture, and proposes a lightweight checking fixture for machining load drums.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a lightweight inspection tool for processing load-bearing drums, comprising a chassis and a positioning ring, the chassis and the positioning ring are made of nylon material, a plurality of first through holes are provided on the outer surface of the chassis, two second through holes are provided on the outer surface of the chassis, a second bolt is slidably inserted into the inner wall of the second through hole, a nut is threadedly connected to the outer surface of the second bolt, a detection pin is slidably inserted into the inner wall of the first through hole, the inner wall of the detection pin is threadedly connected to the first bolt, and two third through holes are provided on the outer surface of the positioning ring, and the second through holes have the same specifications as the third through holes.

[0007] The effect achieved by the above components is: when using the inspection tool to inspect the position of the load drum, first insert each inspection pin into the first through hole on the outer surface of the chassis, then pass the first bolt through the first through hole and insert it into the inspection pin, hold the inspection pin and turn the first bolt to thread the inner wall of the inspection pin to fix the inspection pin on the outer surface of the chassis, then clamp the positioning ring on the inner wall of the chassis to align the positions of the second through hole and the third through hole, pass the second bolt through the second through hole and the third through hole, put the nut on the outer surface of the second bolt and thread it with the second bolt to align the positioning ring with the The chassis is connected. During the inspection, the brake drum is turned upside down on the inspection platform. The operator holds the chassis, keeps the chassis and the brake drum concentric, moves the chassis downward to move the locating ring on the inner ring of the brake drum, and moves the detection pin inserted into the hole on the surface of the brake drum. The chassis can move normally to make the bottom end of the locating ring fit with the top end of the brake drum, then the brake drum is a qualified product. By setting the chassis and the locating ring to be made of nylon material, the overall weight of the inspection fixture can be greatly reduced, and the inspection process is simple, which is suitable for on-site use in the workshop, saving working hours, and reducing the difficulty and labor intensity of workers' operations.

[0008] Preferably, two groups of auxiliary structures are provided on the outer surface of the chassis, and the auxiliary structures include a bent rod, both ends of which are fixedly connected with a rotating shaft, and fan-shaped grooves are opened on both sides of the top of the chassis, and the rotating shafts at both ends of the bent rod are rotatably connected to both sides of the inner wall of the groove.

[0009] The effect achieved by the above components is: after using the inspection fixture to inspect the brake drum, the two bent rods can be pulled at the fan-shaped groove to rotate the bent rods through the rotating shaft, so that the bent rods and the chassis are perpendicular to each other. Holding the surface of the two bent rods makes it easy to lift the chassis and the positioning ring as a whole, thereby improving the convenience when using the inspection fixture.

[0010] Preferably, a sleeve is fixedly connected to the outer surface of the bending rod, and the sleeve is made of rubber material.

[0011] The effect achieved by the above components is that the operator is not likely to hurt his hand when he holds the rubber sleeve on the outer surface of the bending rod to lift the entire inspection tool.

[0012] Preferably, a plurality of convex strips are fixedly connected to the outer surface of the sleeve, and the convex strips are linearly distributed on the surface of the sleeve.

[0013] The effect achieved by the above components is that when holding the convex strips on the outer surface of the sleeve, the friction between the hand and the sleeve surface can be increased, and the inspection tool can be lifted more stably and not easy to slip by the bent rod.

[0014] Preferably, two grooves are formed at the top of the inner wall of the fan-shaped groove, and the two grooves are respectively located on both sides of the top of the inner wall of the fan-shaped groove.

[0015] The effect achieved by the above components is that when the bending rod is rotated out from the inside of the fan-shaped groove, the finger can be inserted from the groove at the top of the inner wall of the fan-shaped groove, which makes it more convenient to hook the bending rod and control the rotation of the bending rod.

[0016] Preferably, magnetic blocks are fixedly connected to both ends of the inner wall of the fan-shaped groove, rectangular grooves are opened on both sides of the curved rod, and iron sheets are arranged on the inner wall of the rectangular groove.

[0017] The effect achieved by the above components is: when the bending rod is inside the fan-shaped groove, the magnetic blocks at both ends of the inner wall of the fan-shaped groove will be located at the rectangular groove on the surface of the bending rod, and will be magnetically attracted to the iron sheet on the inner wall of the rectangular groove, thereby fixing the position of the bending rod inside the fan-shaped groove.

[0018] Preferably, a plurality of positioning blocks are fixedly connected to the top of the chassis, and two of the positioning blocks are respectively located at two ends of the outer surface of the chassis close to the fan-shaped groove.

[0019] The effect achieved by the above components is: when the bending rod is rotated so that the bending rod and the chassis are perpendicular to each other, one side of the bending rod will contact one side of the positioning block. The positioning block can limit the rotation angle of the bending rod, and avoid as much as possible the bending rod from rotating too much, causing the connection with the rotating shaft to be stuck in the inner wall of the fan-shaped groove and break.

[0020] Compared with the prior art, the advantages and positive effects of the utility model are:

[0021] In the utility model, the overall weight of the inspection tool can be greatly reduced by setting the chassis and the positioning ring to be made of nylon material, and the inspection process of the mobile chassis and the positioning ring is simple, which is suitable for on-site use in workshops, saving working hours and reducing the difficulty and labor intensity of workers' operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the chassis of the utility model;

[0024] Figure 3 It is a schematic diagram of the explosion three-dimensional structure of the utility model;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the protrusion of the utility model;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the bending rod of the utility model.

[0027] Legend: 1. Chassis; 2. Auxiliary structure; 3. Positioning ring; 4. First bolt; 5. Detection pin; 6. Second bolt; 7. Nut; 8. First through hole; 9. Second through hole; 10. Third through hole; 21. Fan-shaped groove; 22. Rotating shaft; 23. Bending rod; 24. Sleeve; 25. Raised strip; 26. Groove; 27. Magnetic block; 28. Rectangular groove; 29. ​​Positioning block. DETAILED DESCRIPTION

[0028] Embodiment 1, as Figure 1-3 As shown, a lightweight inspection tool for processing a load-bearing drum comprises a chassis 1 and a positioning ring 3, the chassis 1 and the positioning ring 3 are made of nylon material, a plurality of first through holes 8 are provided on the outer surface of the chassis 1, two second through holes 9 are provided on the outer surface of the chassis 1, a second bolt 6 is slidably inserted into the inner wall of the second through hole 9, a nut 7 is threadedly connected to the outer surface of the second bolt 6, a detection pin 5 is slidably inserted into the inner wall of the first through hole 8, a first bolt 4 is threadedly connected to the inner wall of the detection pin 5, two third through holes 10 are provided on the outer surface of the positioning ring 3, the second through hole 9 has the same specifications as the third through hole 10, when the inspection tool is used to inspect the position of the load-bearing drum, each detection pin 5 is first inserted into the first through hole 8 on the outer surface of the chassis 1, and then the first bolt 4 is inserted into the detection pin 5 through the first through hole 8, the detection pin 5 is held and the first bolt 4 is threadedly connected to the inner wall of the detection pin 5 to fix the detection pin 5. The second through hole 9 and the third through hole 10 are aligned, the second bolt 6 is passed through the second through hole 9 and the third through hole 10, the nut 7 is sleeved on the outer surface of the second bolt 6 and is threadedly connected with the second bolt 6 to connect the positioning ring 3 to the chassis 1. During the inspection, the brake drum is turned upside down on the inspection platform, the operator holds the chassis 1, keeps the chassis 1 and the brake drum concentric, moves the chassis 1 downward to move the positioning ring 3 on the inner ring of the brake drum, and moves the detection pin 5 inserted into the hole on the surface of the brake drum. The chassis 1 can move normally to make the bottom end of the positioning ring 3 fit with the top end surface of the brake drum, then the brake drum is a qualified product. By setting the chassis 1 and the positioning ring 3 to be made of nylon material, the overall weight of the inspection tool can be greatly reduced, and the inspection process is simple, which is suitable for on-site use in the workshop, saving working hours, and reducing the difficulty and labor intensity of workers.

[0029] Reference Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, in this embodiment: two groups of auxiliary structures 2 are provided on the outer surface of the chassis 1, and the auxiliary structure 2 includes a bent rod 23, and the two ends of the bent rod 23 are fixedly connected with a rotating shaft 22. Fan-shaped grooves 21 are provided on both sides of the top of the chassis 1, and the rotating shafts 22 at both ends of the bent rod 23 are rotatably connected to the inner walls of the groove 26 respectively. After the brake drum is inspected by using a checking fixture, the two bent rods 23 can be pulled at the fan-shaped groove 21 to make the bent rods 23 rotate through the rotating shaft 22, so that the bent rods 23 and the chassis 1 are perpendicular to each other. Holding the surface of the two bent rods 23 facilitates the chassis 1 and the positioning ring 3 to be lifted as a whole, thereby improving the convenience when using the checking fixture.

[0030] Reference Figure 3-5 As shown, in this embodiment: the outer surface of the bending rod 23 is fixedly connected with a sleeve 24, and the sleeve 24 is made of rubber material. When the operator holds the rubber sleeve 24 on the outer surface of the bending rod 23 to lift the inspection tool as a whole, it is not easy to hurt the hand. The outer surface of the sleeve 24 is fixedly connected with a plurality of convex strips 25, and the convex strips 25 are linearly distributed on the surface of the sleeve 24. When holding the convex strips 25 on the outer surface of the sleeve 24, the friction between the hand and the surface of the sleeve 24 can be increased. When the inspection tool is lifted by the bending rod 23, it is more stable and not easy to slip. Two grooves 26 are provided at the top of the inner wall of the fan-shaped groove 21. The two grooves 26 are respectively located on both sides of the top of the inner wall of the fan-shaped groove 21. When the bending rod 23 is turned out from the inside of the fan-shaped groove 21, the fingers can be inserted from the grooves 26 at the top of the inner wall of the fan-shaped groove 21, which is more convenient to hook the bending rod 23 to control the rotation of the bending rod 23.

[0031] Reference Figure 3-5 As shown, in this embodiment: magnetic blocks 27 are fixedly connected to the two ends of the inner wall of the fan-shaped groove 21, and rectangular grooves 28 are opened on both sides of the bending rod 23. The inner wall of the rectangular groove 28 is provided with an iron sheet. When the bending rod 23 is inside the fan-shaped groove 21, the magnetic blocks 27 at both ends of the inner wall of the fan-shaped groove 21 will be located at the rectangular groove 28 on the surface of the bending rod 23, and will be magnetically attracted to the iron sheet on the inner wall of the rectangular groove 28, thereby fixing the position of the bending rod 23 inside the fan-shaped groove 21. A plurality of positioning blocks 29 are fixedly connected to the top of the chassis 1, and the two positioning blocks 29 are respectively located at the two ends of the outer surface of the chassis 1 near the fan-shaped groove 21. When the bending rod 23 is rotated so that the bending rod 23 and the chassis 1 are perpendicular to each other, one side of the bending rod 23 will contact one side of the positioning block 29. The positioning block 29 can limit the rotation angle of the bending rod 23, and avoid as much as possible that the bending rod 23 rotates too large an angle, causing the connection with the rotating shaft 22 to be stuck in the inner wall of the fan-shaped groove 21 and break.

[0032] Working principle: When using the inspection tool to detect the position of the load drum, first insert each inspection pin 5 into the first through hole 8 on the outer surface of the chassis 1, then insert the first bolt 4 through the first through hole 8 into the inside of the inspection pin 5, hold the inspection pin 5 and turn the first bolt 4 to thread the inner wall of the inspection pin 5 to fix the inspection pin 5 on the outer surface of the chassis 1, then clamp the positioning ring 3 on the inner wall of the chassis 1, align the second through hole 9 with the third through hole 10, pass the second bolt 6 through the second through hole 9 and the third through hole 10, put the nut 7 on the outer surface of the second bolt 6 and thread it with the second bolt 6 to connect the positioning ring 3 to the chassis 1, and when testing, The brake drum is turned upside down on the inspection platform. The operator holds the chassis 1, keeps the chassis 1 and the brake drum concentric, moves the chassis 1 downward to move the positioning ring 3 on the inner ring of the brake drum and the detection pin 5 is inserted into the hole on the surface of the brake drum to move. The chassis 1 can move normally to make the bottom end of the positioning ring 3 fit with the top surface of the brake drum, then the brake drum is a qualified product. After the inspection is completed, pull the two bent rods 23 at the groove 26 at the top of the inner wall of the fan-shaped groove 21 to make the bent rods 23 rotate through the rotating shaft 22, so that the bent rods 23 and the chassis 1 are perpendicular to each other, hold the sleeve 24 on the surface of the two bent rods 23 to lift the chassis 1 and the positioning ring 3 as a whole and remove them from the surface of the load drum.

[0033] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A lightweight inspection tool for machining a load-bearing drum, comprising a chassis (1) and a positioning ring (3), characterized in that: The chassis (1) and the positioning ring (3) are made of nylon material. The outer surface of the chassis (1) is provided with a plurality of first through holes (8). The outer surface of the chassis (1) is provided with two second through holes (9). A second bolt (6) is slidably inserted into the inner wall of the second through hole (9). A nut (7) is threadedly connected to the outer surface of the second bolt (6). A detection pin (5) is slidably inserted into the inner wall of the first through hole (8). The inner wall of the detection pin (5) is threadedly connected to the first bolt (4). The outer surface of the positioning ring (3) is provided with two third through holes (10). The second through hole (9) and the third through hole (10) have the same specifications.

2. A lightweight inspection tool for processing a load-bearing drum according to claim 1, characterized in that: Two groups of auxiliary structures (2) are arranged on the outer surface of the chassis (1), and the auxiliary structure (2) comprises a bent rod (23), and the two ends of the bent rod (23) are fixedly connected with a rotating shaft (22). The top two sides of the chassis (1) are provided with fan-shaped grooves (21), and the rotating shafts (22) at the two ends of the bent rod (23) are respectively rotatably connected to the two sides of the inner wall of the groove (26).

3. A lightweight inspection tool for processing a load-bearing drum according to claim 2, characterized in that: The outer surface of the bending rod (23) is fixedly connected with a sleeve (24), and the sleeve (24) is made of rubber material.

4. A lightweight inspection tool for processing a load-bearing drum according to claim 3, characterized in that: A plurality of convex strips (25) are fixedly connected to the outer surface of the sleeve (24), and the convex strips (25) are linearly distributed on the surface of the sleeve (24).

5. A lightweight inspection tool for processing a load-bearing drum according to claim 4, characterized in that: Two grooves (26) are provided at the top of the inner wall of the fan-shaped groove (21), and the two grooves (26) are respectively located at two sides of the top of the inner wall of the fan-shaped groove (21).

6. A lightweight inspection tool for processing a load-bearing drum according to claim 5, characterized in that: Magnetic blocks (27) are fixedly connected to the inner walls of the sector-shaped groove (21), rectangular grooves (28) are provided on both sides of the curved rod (23), and iron sheets are provided on the inner walls of the rectangular grooves (28).

7. A lightweight inspection tool for processing a load-bearing drum according to claim 6, characterized in that: A plurality of positioning blocks (29) are fixedly connected to the top of the chassis (1), and two positioning blocks (29) are respectively located at two ends of the outer surface of the chassis (1) close to the fan-shaped groove (21).

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