A barrel type part inner wall groove measuring device

Abstract

The utility model discloses a kind of inner wall groove measuring devices of cylinder class parts, including measuring table (1), the measuring table (1) left and right sides symmetry is equipped with measurement execution mechanism, first motor (3) is equipped between the measurement execution mechanism of left and right sides, inner empty groove (2) is equipped in the measurement execution mechanism, annular spiral disc (8) is rotatably connected in the inner empty groove (2), spiral convex strip (9) is equipped in the top of annular spiral disc (8), annular rack (21) is fixed in the bottom of annular spiral disc (8), the assembly groove (5) with opening upwards is equipped in the upper side of inner empty groove (2), clamping arm (6) is equipped with annular array in the wall body of assembly groove (5);The device is realized clamping arm high-precision linear movement by annular spiral disc, can realize double-station alternate measurement, can be automatically completed in same station the inner diameter detection of different depth, different specification cylinder part, significantly improve measuring efficiency, precision and equipment versatility.

Description

Technical Field

[0001] This utility model relates to the field of measuring device technology, specifically a measuring device for the inner wall groove of cylindrical parts. Background Technology

[0002] In the field of mechanical manufacturing, cylindrical parts (such as hydraulic cylinder barrels, bearing sleeves, engine blocks, etc.) often have annular grooves, oil grooves, or sealing grooves designed on their inner walls. The depth, width, position, and contour accuracy of these grooves directly affect the sealing performance, kinematic fit, and service life of the components. However, when measuring the inner diameter, vernier calipers or micrometers are generally used. When using micrometers or vernier calipers, measurements can only be performed manually, one by one, which is inefficient and can introduce unnecessary errors due to manual readings. Utility Model Content

[0003] The purpose of this invention is to provide a measuring device for the inner wall groove of cylindrical parts, which overcomes the above-mentioned defects in the prior art.

[0004] According to this utility model, a measuring device for measuring the inner wall groove of a cylindrical part includes a measuring platform. Measuring actuators are symmetrically arranged on the left and right sides of the measuring platform. A first motor is located between the left and right measuring actuators. Each measuring actuator has an inner cavity groove. An annular spiral disk is rotatably connected within the inner cavity groove. A spiral protrusion is provided at the top of the annular spiral disk, and an annular rack is fixed at the bottom of the annular spiral disk. An upward-opening assembly groove is provided on the upper side of the inner cavity groove. Clamping arms are arranged in a circular array within the wall of the assembly groove. The clamping arms are slidably connected to the wall of the assembly groove. A downward-extending movable guide pin is provided on the side of the clamping arm away from the center of the assembly groove. The movable guide pin is slidably connected to the spiral protrusion. A drive gear is meshed with the bottom of the annular rack. The drive gear is connected to the output of the first motor. The assembly slot is connected by a shaft with a power engagement. A vertically extending lifting slide is located below the center of the assembly slot. A lifting sliding block is located within the lifting slide. Three recessed slots are arranged in a circular array within the top section of the lifting sliding block. A telescopic measuring head is located within each recessed slot. A control line connecting the top of the telescopic measuring head is located at the center of the lifting sliding block, and the other end of the control line is connected to an external data processing host. A guide groove is located within the side wall of the lifting sliding block, and a guide slider is connected within the guide groove. One side of the guide slider is fixedly connected to the wall of the lifting slide. A vertically extending lifting screw is threadedly connected to the guide slider. A second motor is poweredly connected to the top of the lifting screw, and the outer surface of the second motor is fixedly connected to the top wall of the guide groove. The bottom of the lifting screw is rotatably connected to the bottom wall of the guide groove.

[0005] A further technical solution is that the bottom of the test bench is equipped with shock-absorbing support feet.

[0006] In a further technical solution, the outer surface of the first motor is fixedly connected to the wall of the measuring platform.

[0007] In a further technical solution, a cylindrical part is provided inside the assembly groove.

[0008] A further technical solution is that the top edge of the lifting sliding block is provided with a chamfered edge.

[0009] In a further technical solution, the clamping arm is provided with three or more.

[0010] In a further technical solution, a wear-resistant clamping pad is fixed on the side of the clamping arm near the center of the assembly groove.

[0011] The beneficial effects of this utility model are as follows: The annular spiral disk of this device can achieve precise linear displacement control, ensuring smooth movement of the clamping arm, high repeatability, and reliability of the measurement reference; the lifting screw driven by the second motor moves the lifting sliding block up and down, thereby adjusting the height of the telescopic measuring head, allowing for the measurement of inner diameter at different axial positions in the same station without changing tooling or manual adjustment, adapting to the inspection needs of complex structures such as deep holes and stepped holes; it can adapt to cylindrical parts of different heights and depths, eliminating the need to customize special measuring equipment for each specification, enhancing the versatility and scalability of the equipment; and the dual-station alternating measurement improves measurement efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a measuring device for the inner wall groove of a cylindrical part according to this utility model;

[0013] Figure 2 This is a top view of a measuring device for the inner wall groove of a cylindrical part according to this utility model. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Reference Figure 1-2 According to an embodiment of this utility model, a measuring device for measuring the inner wall groove of a cylindrical part includes a measuring platform 1. Measuring execution mechanisms are symmetrically arranged on the left and right sides of the measuring platform 1. A first motor 3 is located between the measuring execution mechanisms on the left and right sides. An inner hollow groove 2 is provided within the measuring execution mechanism. An annular spiral disk 8 is rotatably connected within the inner hollow groove 2. A spiral protrusion 9 is provided at the top of the annular spiral disk 8, and an annular rack 21 is fixedly provided at the bottom of the annular spiral disk 8. An upward-opening assembly groove 5 is provided on the upper side of the inner hollow groove 2. Clamping arms 6 are arranged in a circular array within the wall of the assembly groove 5. The clamping arms 6 are slidably connected to the wall of the assembly groove 5. A downward-extending movable guide pin 10 is provided on the side of the clamping arm 6 away from the center of the assembly groove 5. The movable guide pin 10 is slidably connected to the spiral protrusion 9. A drive gear 4 is meshed with the bottom of the annular rack 21. The drive gear 4 is poweredly connected to the output shaft of the first motor 3. Below the center of the assembly slot 5, there is a vertically extending lifting slide 11. A lifting sliding block 15 is located within the lifting slide 11. The top section of the lifting sliding block 15 has three recessed slots 12 arranged in a circular array. A telescopic measuring head 14 is located within each recessed slot 12. A control line 20, connected to the telescopic measuring head 14 at the top of the lifting sliding block 15, is located at the center of the lifting sliding block 15. The other end of the control line 20 is connected to an external data processing host. A guide groove 16 is located within the side wall of the lifting sliding block 15. A guide slider 17 is connected within the guide groove 16. One side of the guide slider 17 is fixedly connected to the wall of the lifting slide 11. A vertically extending lifting screw 22 is threadedly connected to the guide slider 17. A second motor 18 is connected to the top of the lifting screw 22. The outer surface of the second motor 18 is fixedly connected to the top wall of the guide groove 16. The bottom of the lifting screw 22 is rotatably connected to the bottom wall of the guide groove 16.

[0017] Advantageously or exemplaryly, the bottom of the test bench 1 is provided with shock-absorbing support feet, which can absorb vibrations generated from the ground or the operation of the equipment and prevent them from being transmitted to the body of the test bench 1, thereby ensuring the stability of the test process.

[0018] Advantageously or exemplaryly, the outer surface of the first motor 3 is fixedly connected to the wall of the measuring platform 1. By firmly connecting the outer surface of the motor to the solid wall of the measuring platform, the structural rigidity of the entire device can be significantly enhanced, the shaking or vibration during operation can be reduced, and the system stability can be improved.

[0019] Advantageously or exemplary, the assembly groove 5 is provided with a cylindrical part 7.

[0020] Beneficially or exemplaryly, the top edge of the lifting sliding block 15 is provided with a chamfered edge 13. The chamfered edge can play a guiding role when the lifting sliding block 15 is assembled or slidably embedded with the cylindrical part 7, avoiding sharp edges from getting stuck or colliding, and improving assembly efficiency and smoothness.

[0021] Advantageously or exemplaryly, the clamping arms 6 are provided in three or more.

[0022] Advantageously or exemplary, a wear-resistant clamping pad 19 is fixed on the side of the clamping arm 6 near the center of the assembly groove 5. The clamping pad 19 serves as a buffer layer between the clamping arm and the workpiece, which can effectively prevent the metal clamping arm from directly contacting the workpiece surface and prevent scratches, indentations or other mechanical damage to the workpiece during the clamping process. It is especially suitable for parts with high surface precision requirements.

[0023] When this utility model is in use: the first motor 3 controls the drive gear 4 to rotate, and the drive gears on the left and right sides simultaneously control the rotation of the left and right annular spiral disks 8. When the left annular spiral disk 8 rotates and controls the left clamping arm 6 to move towards the center of the assembly groove 5, at the same time, the right annular spiral disk 8 rotates and controls the right clamping arm 6 to move away from the center of the assembly groove 5. Thus, when the left clamping arm 6 clamps and fixes the cylindrical part 7, the right clamping arm 6 releases the cylindrical part 7. Thus, the measuring actuators on both sides perform alternating clamping and releasing operations. Finally, by controlling the extension of the telescopic measuring head 14 on the side clamping the cylindrical part 7, the measurement work is realized, which can improve the measurement efficiency.

[0024] When it is necessary to measure the inner diameter at different depths, the second motor 18 controls the lifting screw 22 to rotate, thereby enabling the lifting screw 22 to drive the lifting sliding block 15 to lift and lower, thus adjusting the telescopic measuring head 14 to different height positions, thereby enabling the measurement of the inner diameter at different depths.

[0025] Those skilled in the art will appreciate that various modifications to the above embodiments can be made without departing from the overall spirit and concept of this utility model. All such modifications fall within the protection scope of this utility model. The protection scheme of this utility model is defined by the appended claims.

Claims

1. A measuring device for the inner wall groove of a cylindrical part, comprising a measuring table (1), characterized in that: The measuring platform (1) is symmetrically equipped with measuring execution mechanisms on its left and right sides. A first motor (3) is provided between the measuring execution mechanisms on the left and right sides. The measuring execution mechanism is provided with an inner cavity (2). An annular spiral disk (8) is rotatably connected in the inner cavity (2). The top of the annular spiral disk (8) is provided with a spiral protrusion (9). An annular rack (21) is fixedly provided at the bottom of the annular spiral disk (8). An upward-opening assembly groove (5) is provided on the upper side of the inner cavity (2). A clamping arm (6) is arranged in a ring array in the wall of the assembly groove (5). The clamping arm (6) is slidably connected to the wall of the assembly groove (5). A downward-extending movable guide pin (10) is provided on the side of the clamping arm (6) away from the center of the assembly groove (5). The movable guide pin (10) is slidably connected to the spiral protrusion (9). A drive gear (4) is meshed at the bottom of the annular rack (21). The drive gear (4) is poweredly connected to the output shaft of the first motor (3). A vertically penetrating groove is provided below the center of the assembly groove (5). A lifting slide (11) is provided, and a lifting sliding block (15) is provided inside the lifting slide (11). The top section of the lifting sliding block (15) is provided with three embedded slots (12) arranged in a ring array. A telescopic measuring head (14) is provided in the embedded slots (12). A control line (20) is provided at the center of the lifting sliding block (15) and connected to the telescopic measuring head (14) at the top. The other end of the control line (20) is connected to an external data processing host. A guide groove (16) is provided in the side wall of the lifting sliding block (15). The guide slide (17) is connected to the guide groove (16) in a transition fit. One side of the guide slide (17) is fixedly connected to the wall of the lifting slide (11). The guide slide (17) is threadedly connected to a lifting screw (22) that extends vertically. The top of the lifting screw (22) is connected to a second motor (18). The outer surface of the second motor (18) is fixedly connected to the top wall of the guide groove (16). The bottom of the lifting screw (22) is rotatably connected to the bottom wall of the guide groove (16).

2. The measuring device for the inner wall groove of a cylindrical part according to claim 1, characterized in that: The bottom of the measuring platform (1) is provided with shock-absorbing support feet.

3. The measuring device for the inner wall groove of a cylindrical part according to claim 2, characterized in that: The outer surface of the first motor (3) is fixedly connected to the wall of the measuring platform (1).

4. The measuring device for the inner wall groove of a cylindrical part according to claim 3, characterized in that: The assembly slot (5) contains a cylindrical part (7).

5. The measuring device for the inner wall groove of a cylindrical part according to claim 4, characterized in that: The top edge of the lifting sliding block (15) is provided with a chamfered edge (13).

6. The measuring device for the inner wall groove of a cylindrical part according to claim 5, characterized in that: The clamping arms (6) are provided in three or more.

7. The measuring device for the inner wall groove of a cylindrical part according to claim 1, characterized in that: The clamping arm (6) is fixed with a wear-resistant clamping pad (19) on the side near the center of the assembly groove (5).

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