Aperture measuring device for main shaft product processing

Abstract

The utility model discloses an aperture measuring device for main shaft product processing, comprising a workbench, one end of the top of the workbench is provided with two cross holes, the workbench is provided with a support mechanism close to the cross holes, the top of the workbench is fixedly connected with a U-shaped frame at the other end of the support mechanism, and the top of the U-shaped frame is rotatably sleeved with a first screw rod. The top of the first screw rod is fixedly connected with a hand wheel, the circumferential surface of the first screw rod is in threaded connection with a first threaded connection block, the middle of the first threaded connection block is fixedly sleeved with a screw rod nut matched with the first screw rod, the first threaded connection block is attached to the inner wall of the U-shaped frame, and the end, close to the supporting mechanism, of the first threaded connection block is fixedly connected with a rectangular plate. According to the utility model, the supporting mechanism ensures that the main shaft is in a stable and accurate measurement posture, so that the diameter of the main shaft hole in the vertical direction is accurately matched with the measurement claw, the measurement error caused by inclined placement of a workpiece is reduced, the subjective error of traditional manual measurement is effectively eliminated, and high-precision aperture data acquisition is achieved.

Description

Technical Field

[0001] This utility model relates to the field of aperture measurement technology, and in particular to an aperture measuring device for machining spindle-type products. Background Technology

[0002] In the field of mechanical manufacturing, the spindle, as a core component of mechanical equipment, directly affects the overall performance and operational stability of the equipment due to its machining accuracy. Spindle products typically contain various specifications of internal hole structures. These internal holes not only serve to install bearings and transmission components, but also play a crucial role in the spindle's rotational accuracy and load-bearing capacity. A search revealed Chinese patent CN222460543U, which discloses a bore diameter measuring device, including a base. The outer wall of the base has a second inner groove, and the outer wall of the second inner groove is rotatably connected to a second threaded rod. A movable seat is threadedly fitted onto the outer wall of the second threaded rod. The wall has a drive groove, and a first threaded rod is rotatably connected to the outer wall of the drive groove. A drive block is threadedly sleeved on the outer wall of the first threaded rod. A second servo motor for driving the first threaded rod is provided on the top outer wall of the movable seat. A second measuring rod is fixedly connected to the outer wall of the drive block. The first measuring rod is fixedly connected to the outer wall of the movable seat located below the drive groove. A measuring scale is provided on the outer wall of the base located on one side of the drive groove. A measuring rod is fixedly connected to the outer wall of the second measuring rod, and the measuring rod is adapted to the measuring scale. This utility model can measure the diameter of pipes, which is convenient and quick, easy for workers to operate, and improves the efficiency of measuring pipe diameter.

[0003] The aperture measuring device in the aforementioned patent has the following shortcomings: the device uses two arc-shaped support blocks 6 to support the placement of the measuring part, but since the height of the first measuring rod 11 is fixed, the first measuring rod 11 may not be able to contact the bottom of the hole of the measuring part after the measuring part is placed, resulting in inaccurate measurement. Moreover, the measuring part is prone to shaking when placed by the arc-shaped support blocks 6, making it difficult to determine that the distance between the second measuring rod 17 and the first measuring rod 11 is the distance of the hole diameter. Therefore, an aperture measuring device for machining spindle-type products is designed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hole diameter measuring device for machining spindle-type products.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hole diameter measuring device for machining spindle-type products includes a worktable. Two horizontal holes are formed at one end of the top of the worktable. A support mechanism is provided near the horizontal holes on the worktable. A U-shaped frame is fixedly connected to the top of the worktable at the other end of the support mechanism. A first lead screw is rotatably sleeved on the top of the U-shaped frame. A handwheel is fixedly connected to the top of the first lead screw. A first threaded block is screwed onto the circumferential surface of the first lead screw, and a lead screw nut adapted to the first lead screw is fixedly sleeved in the middle of the first threaded block. The first threaded block is in contact with the inner wall of the U-shaped frame. A rectangular plate is fixedly connected to the end of the first threaded block near the support mechanism. A rectangular groove is provided on the side of the plate near the support mechanism, and a second screw block is slidably connected in the rectangular groove. A second lead screw is rotatably connected between the top and bottom of the rectangular groove, and the thread of the second lead screw passes through the second screw block. A lead screw nut adapted to the second lead screw is fixedly sleeved in the middle of the second screw block. A pointer is fixedly connected to one side of the second screw block. A rectangular hole adapted to the pointer is provided on one side of the rectangular groove, and a scale line is provided on the outer side of the rectangular hole. An upper measuring claw is fixedly connected to the bottom of the side of the second screw block near the support mechanism. By adjusting the height of the first screw block, the lower measuring claw can contact the bottom of the hole.

[0007] Preferably, a lower measuring claw is fixedly connected to the bottom of the rectangular plate near the support mechanism, and the lower measuring claw is adapted to the upper measuring claw.

[0008] Preferably, a beveled spur gear is fixedly connected to the top of the second lead screw through a rectangular plate. A circular hole adapted to the second lead screw is opened on the top of the rectangular plate. A fixing block is fixedly connected to one end of the top of the rectangular plate, and a rotating rod is fixedly sleeved on the rectangular groove. A circular hole adapted to the rotating rod is opened on the fixing block. A bevel gear is fixedly connected to one end of the rotating rod near the beveled spur gear, and the bevel gear meshes with the beveled spur gear. A knob is fixedly connected to the other end of the rotating rod. By rotating the second lead screw, the upper measuring claw contacts the top of the hole, thereby realizing the measurement of the hole diameter.

[0009] Preferably, the support mechanism includes two movable frames that are slidably connected to the same end of two horizontal holes. A guide rod is fixedly connected between the two ends of each horizontal hole, and each guide rod slides through one end of the bottom of the movable frame. A circular hole adapted to the guide rod is opened at one end of the bottom of each movable frame. Support rollers are rotatably connected to the inner top of the two movable frames, and the two support rollers have the same diameter.

[0010] Preferably, the support mechanism further includes a fixed plate disposed at the bottom of the workbench, a third lead screw is screwed onto the fixed plate, a lead screw nut adapted to the third lead screw is fixedly sleeved in the middle of the fixed plate, an L-shaped plate is rotatably connected to one end of the third lead screw located on the inner side of the workbench, oblique holes are opened on both sides of the top of the L-shaped plate, a handle is fixedly connected to the other end of the third lead screw, a protruding rod is fixedly connected to the middle of the bottom of the two movable frames, and each protruding rod is slidably connected in adjacent oblique holes, and a strip-shaped hole adapted to the protruding rod is opened on the top of the workbench.

[0011] Preferably, the support mechanism further includes protrusions fixedly connected to both ends of the L-shaped plate, and slide rods are slidably fitted on both protrusions. Both protrusions have circular holes adapted to the slide rods. Connecting blocks are fixedly connected to both ends of each slide rod, and each connecting block is fixedly connected to the bottom of the worktable. Two support rollers are located on both sides of the upper measuring claw and are symmetrically arranged. Through the support of the two support rollers on the main shaft, the vertical diameter of the hole on the side of the main shaft closest to the rectangular plate is aligned with the upper and lower measuring claws in the same vertical line.

[0012] The beneficial effects of this utility model are as follows:

[0013] By employing a support mechanism, a second screw block, an upper measuring jaw, a pointer, and a first screw block, the support mechanism supports the spindle, ensuring that the vertical diameter of the spindle hole matches the upper and lower measuring jaws. Adjusting the height of the lower measuring jaw brings it into contact with the bottom of the hole, and then adjusting the height of the upper measuring jaw brings it into contact with the top of the hole. Data can then be obtained from the pointer and scale lines. This effectively solves the measurement inaccuracy problem mentioned in the background technology, ensuring the spindle is in a stable and accurate measurement posture. It also ensures precise matching between the vertical diameter of the spindle hole and the measuring jaws, reducing measurement errors caused by workpiece tilt and effectively eliminating subjective errors associated with traditional manual measurement, thus achieving high-precision hole diameter data acquisition. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a hole diameter measuring device for machining spindle-type products proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the U-shaped frame of the hole diameter measuring device for machining spindle-type products proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the rectangular plate portion of a hole diameter measuring device for machining spindle-type products proposed in this utility model.

[0017] Figure 4This utility model proposes a hole diameter measuring device for machining spindle-type products. Figure 3 An enlarged structural diagram at point A;

[0018] Figure 5 This is a schematic diagram of the bottom structure of the support mechanism of a hole diameter measuring device for machining spindle-type products proposed in this utility model.

[0019] In the diagram: 1. Workbench; 101. Horizontal hole; 2. U-shaped frame; 201. First lead screw; 202. Handwheel; 203. First screw block; 3. Support mechanism; 301. Moving frame; 302. Support roller; 303. Fixed plate; 304. Third lead screw; 305. L-shaped plate; 306. Inclined hole; 307. Slide rod; 4. Rectangular plate; 401. Rectangular groove; 402. Rectangular hole; 403. Scale line; 404. Second lead screw; 405. Lower measuring claw; 406. Second screw block; 407. Upper measuring claw; 408. Pointer; 409. Bevel spur gear; 410. Fixed block; 411. Rotating rod; 412. Bevel gear. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-5A hole diameter measuring device for machining spindle-type products includes a worktable 1. Two horizontal holes 101 are formed at one end of the top of the worktable 1. A support mechanism 3 is provided near the horizontal holes 101 on the worktable 1. A U-shaped frame 2 is fixedly connected to the other end of the support mechanism 3 on the top of the worktable 1. A first lead screw 201 is rotatably sleeved on the top of the U-shaped frame 2. A handwheel 202 is fixedly connected to the top of the first lead screw 201. A first threaded block 203 is screwed onto the circumferential surface of the first lead screw 201, and a lead screw nut adapted to the first lead screw 201 is fixedly sleeved in the middle of the first threaded block 203. The first threaded block 203 fits against the inner wall of the U-shaped frame 2. A rectangular plate 4 is fixedly connected to the end of the first threaded block 203 near the support mechanism 3, and a rectangular... The rectangular groove 401 has a second screw block 406 slidably connected in it. A second lead screw 404 is rotatably connected between the top and bottom of the rectangular groove 401, and the second lead screw 404 is threaded through the second screw block 406. A lead screw nut that matches the second lead screw 404 is fixedly sleeved in the middle of the second screw block 406. A pointer 408 is fixedly connected to one side of the second screw block 406. A rectangular hole 402 that matches the pointer 408 is opened on one side of the rectangular groove 401, and a scale line 403 is provided on the outer side of the rectangular hole 402. An upper measuring claw 407 is fixedly connected to the bottom of the second screw block 406 near the support mechanism 3. The lower measuring claw 405 can be adjusted in position by rotating the first lead screw 201 through the handwheel 202, so that it can contact the bottom of the hole.

[0022] In this utility model, a lower measuring claw 405 is fixedly connected to the bottom of the rectangular plate 4 near the support mechanism 3, and the lower measuring claw 405 is adapted to the upper measuring claw 407.

[0023] In this utility model, a bevel gear 409 is fixedly connected to the top of the second lead screw 404 through the rectangular plate 4. The top of the rectangular plate 4 has a round hole that matches the second lead screw 404. A fixing block 410 is fixedly connected to one end of the top of the rectangular plate 4, and a rotating rod 411 is fixedly sleeved on the rectangular groove 401. A round hole that matches the rotating rod 411 is opened on the fixing block 410. A bevel gear 412 is fixedly connected to one end of the rotating rod 411 near the bevel gear 409, and the bevel gear 412 meshes with the bevel gear 409. A knob is fixedly connected to the other end of the rotating rod 411. After the bottom of the main shaft hole of the lower measuring claw 405 is reached, the upper measuring claw 407 is raised by rotating the knob to achieve the measurement effect.

[0024] In this utility model, the support mechanism 3 includes two movable frames 301 that are slidably connected to the same end of two horizontal holes 101. A guide rod is fixedly connected between the two ends of each horizontal hole 101, and each guide rod slides through one end of the bottom of the movable frame 301. A round hole adapted to the guide rod is opened at one end of the bottom of each movable frame 301. A support roller 302 is rotatably connected to the inner side of the top of the two movable frames 301, and the two support rollers 302 have the same diameter.

[0025] In this utility model, the support mechanism 3 also includes a fixed plate 303 set at the bottom of the workbench 1. A third lead screw 304 is screwed onto the fixed plate 303. A lead screw nut that matches the third lead screw 304 is fixedly sleeved in the middle of the fixed plate 303. An L-shaped plate 305 is rotatably connected to one end of the third lead screw 304 located on the inner side of the workbench 1. An oblique hole 306 is opened on both sides of the top of the L-shaped plate 305. A handle is fixedly connected to the other end of the third lead screw 304. A protruding rod is fixedly connected to the middle of the bottom of the two movable frames 301. Each protruding rod is slidably connected in the oblique hole 306 that is close to each other. A strip-shaped hole that matches the protruding rod is opened on the top of the workbench 1.

[0026] In this utility model, the support mechanism 3 also includes protrusions fixedly connected to both ends of the L-shaped plate 305, and slide rods 307 are slidably sleeved on both protrusions. Both protrusions have round holes adapted to the slide rods 307. Connecting blocks are fixedly connected to both ends of each slide rod 307, and each connecting block is fixedly connected to the bottom of the worktable 1. By setting up the support mechanism 3, it is easy to adjust the distance between the two support rollers 302, so that the bottom of the spindle will not contact the worktable 1 after it is placed on it, thus improving the accuracy of measurement.

[0027] Working principle: During use, the L-shaped plate 305 moves by rotating the handle of the third lead screw 304 according to the diameter of the spindle. Under the action of the inclined hole 306 and the convex rod, the two moving frames 301, along with the support rollers 302, move closer or further apart, so that the two support rollers 302 can lift the spindle, preventing the spindle from contacting the worktable 1. Since the two support rollers 302 are located on both sides of the upper measuring claw 407 and the lower measuring claw 405 respectively, and are symmetrically arranged, the support of the spindle by the two support rollers 302 ensures that the lower measuring claw 405 and the upper measuring claw 407 are both on the vertical diameter of the spindle hole, pressing the spindle towards one side of the rectangular plate 4, so that the upper measuring claw 407 and the lower measuring claw 405 are both on the spindle. Inside the hole, adjust the handwheel 202 so that the first screw block 203 lowers the rectangular plate 4. Stop when the lower measuring claw 405 touches the bottom of the inner bottom of the spindle hole. Then turn the knob at the rotating rod 411 so that the bevel gear 412 rotates the bevel spur gear 409 and the second lead screw 404, so that the second screw block 406 raises the upper measuring claw 407. When the upper measuring claw 407 touches the top of the spindle hole, the reading on the scale line 403 pointed to by the pointer 408 is the diameter of the spindle hole. Through the cooperation of the support mechanism 3 with the lower measuring claw 405 and the upper measuring claw 407, the lower measuring claw 405 and the upper measuring claw 407 are on the vertical diameter of the spindle hole, so that the distance between the two is the diameter.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hole diameter measuring device for machining spindle-type products, comprising a worktable (1), characterized in that, Two horizontal holes (101) are provided at one end of the top of the workbench (1). A support mechanism (3) is provided near the horizontal holes (101) of the workbench (1). A U-shaped frame (2) is fixedly connected to the top of the workbench (1) at the other end of the support mechanism (3). A first lead screw (201) is rotatably sleeved on the top of the U-shaped frame (2). A handwheel (202) is fixedly connected to the top of the first lead screw (201). A first screw block (203) is screwed onto the circumferential surface of the first lead screw (201). A lead screw nut that matches the first lead screw (201) is fixedly sleeved in the middle of the first screw block (203). The first screw block (203) is in contact with the inner wall of the U-shaped frame (2). A rectangular plate (4) is fixedly connected to the end of the first screw block (203) near the support mechanism (3). A rectangular groove (401) is provided on one side near the support mechanism (3), and a second screw block (406) is slidably connected in the rectangular groove (401). A second lead screw (404) is rotatably connected between the top and bottom of the rectangular groove (401), and the thread of the second lead screw (404) passes through the second screw block (406). A lead screw nut that matches the second lead screw (404) is fixedly sleeved in the middle of the second screw block (406). A pointer (408) is fixedly connected to one side of the second screw block (406). A rectangular hole (402) that matches the pointer (408) is provided on one side of the rectangular groove (401), and a scale line (403) is provided on the outer side of the rectangular hole (402). An upper measuring claw (407) is fixedly connected to the bottom of the second screw block (406) near the support mechanism (3).

2. The hole diameter measuring device for machining spindle-type products according to claim 1, characterized in that, The bottom of the rectangular plate (4) is fixedly connected to a lower measuring claw (405) near the support mechanism (3), and the lower measuring claw (405) is adapted to the upper measuring claw (407).

3. The hole diameter measuring device for machining spindle-type products according to claim 1, characterized in that, The top of the second lead screw (404) passes through the rectangular plate (4) and is fixedly connected to a bevel spur gear (409). The top of the rectangular plate (4) is provided with a round hole that matches the second lead screw (404). A fixing block (410) is fixedly connected to one end of the top of the rectangular plate (4), and a rotating rod (411) is fixedly sleeved on the rectangular groove (401). A round hole that matches the rotating rod (411) is provided on the fixing block (410). A bevel gear (412) is fixedly connected to one end of the rotating rod (411) near the bevel spur gear (409), and the bevel gear (412) meshes with the bevel spur gear (409). A knob is fixedly connected to the other end of the rotating rod (411).

4. The hole diameter measuring device for machining spindle-type products according to claim 1, characterized in that, The support mechanism (3) includes two movable frames (301) that are slidably connected to the same end of two horizontal holes (101). A guide rod is fixedly connected between the two ends of each horizontal hole (101), and each guide rod slides through one end of the bottom of the movable frame (301). A circular hole adapted to the guide rod is opened at one end of the bottom of each movable frame (301). A support roller (302) is rotatably connected to the inner side of the top of the two movable frames (301), and the two support rollers (302) have the same diameter.

5. The hole diameter measuring device for machining spindle-type products according to claim 4, characterized in that, The support mechanism (3) also includes a fixed plate (303) set at the bottom of the workbench (1). A third lead screw (304) is screwed onto the fixed plate (303). A lead screw nut that matches the third lead screw (304) is fixedly sleeved in the middle of the fixed plate (303). An L-shaped plate (305) is rotatably connected to one end of the third lead screw (304) located inside the workbench (1). An oblique hole (306) is opened on both sides of the top of the L-shaped plate (305). A handle is fixedly connected to the other end of the third lead screw (304). A protruding rod is fixedly connected to the middle of the bottom of the two movable frames (301), and each protruding rod is slidably connected in the oblique hole (306) that is close to each other. A strip-shaped hole that matches the protruding rod is opened on the top of the workbench (1).

6. The hole diameter measuring device for machining spindle-type products according to claim 5, characterized in that, The support mechanism (3) also includes protrusions fixedly connected to both ends of the L-shaped plate (305), and slide rods (307) are slidably sleeved on both protrusions. Both protrusions are provided with round holes that are adapted to the slide rods (307). Each slide rod (307) is fixedly connected to both ends with a connecting block, and each connecting block is fixedly connected to the bottom of the workbench (1).

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