Horizontal run-out testing fixture for intermediate shaft forging blank

Abstract

The utility model discloses a horizontal run-out testing fixture for an intermediate shaft forging blank. The horizontal run-out testing fixture comprises a bottom plate and a dial indicator, the bottom plate is connected with a rotating mechanism and a translation mechanism; the rotating mechanism comprises a shaft seat, the main shaft is rotationally connected to the shaft seat, and one end of the main shaft is connected with a clamp; the translation mechanism is connected with a lifting mechanism, and the lifting mechanism comprises two carrier rollers; the dial indicator is connected to the universal magnetic gauge stand, and the universal magnetic gauge stand is adsorbed on the bottom plate; the lifting mechanism further comprises a base, the base is connected to the sliding block through a locking screw, and the locking screw can make contact with the bottom plate. A vertical plate is connected to the base, a U-shaped adjusting groove is formed in the vertical plate, an adjusting plate is connected to the adjusting groove through an adjusting screw, a vertical supporting screw is connected to the adjusting plate, and the supporting screw can make contact with the base. Compared with the prior art, the device is simple in structure and convenient to use, and can quickly detect the runout size of the outer circle on the intermediate shaft forging blank, thereby ensuring the product quality.

Description

Technical Field

[0001] This utility model relates to the field of inspection tool technology, and in particular to a horizontal runout inspection tool for intermediate shaft forging blanks. Background Technology

[0002] Automotive gears are mostly manufactured by forging blanks and then cutting them. The structural rationality of the forged blanks directly affects the consumption of raw materials and the subsequent machining allowance and efficiency. Optimizing the design of the forged blank structure can save raw materials, reduce machining allowance, and improve efficiency.

[0003] The intermediate shaft forging blank is affected by the workpiece's height, angle, length, and shape. After the workpiece is machined, the runout of the outer circle is not measured with a gauge, resulting in the workpiece's runout not meeting the customer's requirements. Utility Model Content

[0004] The purpose of this utility model is to provide a horizontal runout gauge for intermediate shaft forging blanks, which has a simple structure and is easy to use. It can quickly detect the runout dimension of the outer circle of the intermediate shaft forging blank, thereby ensuring product quality and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A horizontal runout gauge for intermediate shaft forging blanks includes a base plate and a dial indicator; a rotating mechanism and a translating mechanism are connected to the base plate; the rotating mechanism includes a bearing seat, a main shaft is rotatably connected to the bearing seat, and a clamp is connected to one end of the main shaft; a lifting mechanism is connected to the translating mechanism, and the lifting mechanism includes two rollers; the dial indicator is connected to a universal magnetic gauge base, and the universal magnetic gauge base is adsorbed onto the base plate.

[0007] A further improvement of this utility model is that the rotating mechanism also includes a support plate, a shaft seat is connected to the support plate, and the support plate is connected to the base plate; a stepped hole is provided at the axial center of the shaft seat, and a first bearing, a second bearing, and a third bearing are interference-fitted in the stepped hole, the main shaft is interference-fitted to the inner ring of the three bearings, and end caps are connected to both ends of the stepped hole of the shaft seat, with the two end caps contacting the outer ends of the first bearing and the third bearing, respectively.

[0008] A further improvement of this utility model is that a handwheel is connected to the rear end of the main shaft, and a handle is connected to the handwheel. A locking nut is threadedly fitted to the main shaft, and the inner end of the locking nut contacts the inner ring of the first bearing.

[0009] A further improvement of this utility model is that a sleeve is provided between the first bearing and the second bearing, and a washer is connected between the second bearing and the third bearing, with the main shaft clearance fitting to the sleeve and the washer.

[0010] A further improvement of this utility model is that the clamp is a three-jaw chuck, the head of the spindle is connected to a flange, and the three-jaw chuck is connected to the flange.

[0011] A further improvement of this utility model is that the translation mechanism includes an optical axis guide rail, the two ends of which are connected to the base plate through supports, and a slider is slidably fitted on the optical axis guide rail.

[0012] A further improvement of this utility model is that the lifting mechanism also includes a base, which is connected to the slider by a locking screw, and the locking screw can contact the base plate; a vertical plate is connected to the base, and the vertical plate is provided with a U-shaped adjustment groove, an adjustment plate is connected to the adjustment groove by an adjustment screw, and a vertical support screw is connected to the adjustment plate, and the support screw can contact the base; an indicator arrow is provided on the adjustment plate, and a scale line is provided on the vertical plate.

[0013] A further improvement of this utility model is that the idler roller consists of two horizontally arranged fourth bearings, the fourth bearings are connected to the fixing pin by hexagonal socket head cap screws A, the fixing pin is connected to the adjusting plate by hexagonal socket head cap screws B, and the fixing pin is parallel to the main shaft.

[0014] A further improvement of this utility model is that it also includes a pressure mechanism, one end of which is connected to the base plate and the other end is located above the lifting mechanism.

[0015] A further improvement of this utility model is that the pressure mechanism includes a bracket, a rocker arm is rotatably connected to the top of the bracket, and a pressure roller is connected to one end of the rocker arm.

[0016] The beneficial effects of this utility model are:

[0017] This utility model discloses a horizontal runout gauge for intermediate shaft forging blanks. It has a simple structure and is easy to use. It can quickly detect the runout dimension of the outer circle of the intermediate shaft forging blank, thereby ensuring product quality.

[0018] The present invention relates to a horizontal runout inspection fixture for intermediate shaft forging blanks. The vertical plate is provided with a U-shaped adjustment groove. The adjustment plate is connected to the adjustment groove by an adjustment screw to ensure that the height of the roller is adjustable, which is convenient for the inspection of workpieces with different outer diameters and improves the versatility of the inspection fixture.

[0019] The present invention relates to a horizontal runout inspection fixture for intermediate shaft forging blanks. The base is connected to the slider by a locking screw, and the locking screw can contact the base plate to ensure that the axial position of the roller is adjustable, which is convenient for the inspection of workpieces of different lengths and improves the versatility of the inspection fixture.

[0020] The horizontal runout gauge for intermediate shaft forging blanks of this utility model has a pressure mechanism that can hold the workpiece in place to prevent it from running when rotating, thereby further improving the accuracy of the test results. Attached Figure Description

[0021] Figure 1 This is a front view of the present invention.

[0022] Figure 2 This is a partial right view of the present invention.

[0023] Figure 3 This is a partially enlarged view of the present invention.

[0024] Figure 4 This is a partial exploded view of the present invention.

[0025] In the diagram: 1-Base plate, 2-Dial indicator, 3-Rotating mechanism, 301-Shaft seat, 302-Main shaft, 303-Support plate, 304-First bearing, 305-Second bearing, 306-Third bearing, 307-End cover, 308-Handwheel, 309-Handle, 310-Locking nut, 311-Sleeve, 312-Washer, 313-Flange, 4-Translation mechanism, 401-Optical axis guide rail, 402-Slider, 5-Lifting machine 501-Base, 502-Locking screw, 503-Upright plate, 504-Adjusting groove, 505-Support screw, 506-Indicator arrow, 507-Scale line, 508-Fourth bearing, 509-Hex socket head cap screw A, 510-Hex socket head cap screw B, 511-Fixing pin, 512-Adjusting screw, 6-Three-jaw chuck, 7-Pressure mechanism, 71-Bracket, 702-Rocker arm, 703-Pressure roller, 8-Intermediate shaft forging blank. Detailed Implementation

[0026] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1: As Figures 1-4 As shown, a horizontal runout gauge for intermediate shaft forging blanks includes a base plate 1 and a dial indicator 2; a rotating mechanism 3 and a translating mechanism 4 are connected to the base plate 1; the rotating mechanism 3 includes a bearing 301, a main shaft 302 is rotatably connected to the bearing 301, and one end of the main shaft 302 is connected to a clamp; a lifting mechanism 5 is connected to the translating mechanism 4, and the lifting mechanism 5 includes two rollers; the dial indicator 2 is connected to a universal magnetic gauge base (not shown in the figure), and the universal magnetic gauge base is attracted to the base plate 1.

[0028] The rotating mechanism 3 also includes a support plate 303, a bearing seat 301 connected to the support plate 303, and the support plate 303 connected to the base plate 1. A stepped hole is provided at the axial center of the bearing seat 301, in which a first bearing 304, a second bearing 305, and a third bearing 306 are interference-fitted. The main shaft 302 is interference-fitted to the inner rings of the three bearings. End caps 307 are connected to both ends of the stepped hole in the bearing seat 301, and the two end caps 307 contact the outer ends of the first bearing 304 and the third bearing 306, respectively. In this embodiment, the first bearing 304 is an inner ring single-sided roller bearing, and the second bearing 305 is a double-sided dust-proof deep groove ball bearing.

[0029] A handwheel 308 is connected to the rear end of the main shaft 302, and a handle 309 is connected to the handwheel 308. A locking nut 310 is threaded onto the main shaft 302, and the inner end of the locking nut 310 contacts the inner ring of the first bearing 304.

[0030] A sleeve 311 is provided between the first bearing 304 and the second bearing 305, and a washer 312 is connected between the second bearing 305 and the third bearing 306. The main shaft 302 is clearance-fitted to the sleeve 311 and the washer 312.

[0031] The fixture is a three-jaw chuck 6, and the head of the spindle 302 is connected to a flange 313. The three-jaw chuck 6 is connected to the flange 313.

[0032] The translation mechanism 4 includes an optical axis guide rail 401. Both ends of the optical axis guide rail 401 are connected to the base plate 1 through supports, and a slider 402 is slidably fitted on the optical axis guide rail 401.

[0033] The lifting mechanism 5 also includes a base 501, which is connected to the slider 402 by a locking screw 502, and the locking screw 502 can contact the base plate 1; a vertical plate 503 is connected to the base 501, and the vertical plate 503 is provided with a U-shaped adjustment groove 504. The adjustment plate is connected to the adjustment groove 504 by an adjustment screw 512, and a vertical support screw 505 is connected to the adjustment plate, which can contact the base 501; an indicator arrow 506 is provided on the adjustment plate, and a scale line 507 is provided on the vertical plate 503.

[0034] A further improvement of this utility model is that the idler roller consists of two horizontally arranged fourth bearings 508. The fourth bearings 508 are connected to the fixing pins 511 by hexagonal socket head cap screws A509, and the fixing pins 511 are connected to the adjusting plate by hexagonal socket head cap screws B510. The fixing pins 511 are parallel to the main shaft 302. In this embodiment, the fourth bearings 508 are retaining ring type needle roller bearings.

[0035] Example 2: This example is a further improvement on Example 1. The main improvement is that in Example 1, there is a risk of runout when the intermediate shaft forging blank 8 rotates during operation, which affects the accuracy of the test results; while in this example, the above-mentioned defect can be avoided. Specifically:

[0036] It also includes a pressure mechanism 7, one end of which is connected to the base plate 1 and the other end is located above the lifting mechanism 5. The pressure mechanism 7 includes a bracket 701, and a rocker arm 702 is rotatably connected to the top of the bracket 701. One end of the rocker arm 702 is connected to a pressure roller 703. In this embodiment, the pressure mechanism 7 can press down on the workpiece to prevent it from jumping when rotating, thereby further improving the accuracy of the test results.

[0037] Apart from the above, this embodiment is exactly the same as Embodiment 1, and will not be described again here.

[0038] The specific working principle of this utility model is as follows:

[0039] During operation, the operator places the intermediate shaft forging blank 8 at the center of the three-jaw chuck 6 and manually tightens it clockwise. The jaws retract and clamp the intermediate shaft forging blank 8. After loosening the adjusting screw 512, the height of the adjusting plate can be adjusted according to the position of the indicator arrow 506 and the scale line 507. Then, the adjusting screw 512 is tightened to ensure that the intermediate shaft forging blank 8 is in a horizontal position.

[0040] The operator uses a universal magnetic dial indicator holder attached to the base plate 1. By adjusting the universal magnetic dial indicator holder, the probe of the dial indicator 2 contacts the outer diameter of the intermediate shaft forging blank 8 to be tested. The operator then adjusts the zero value inside the dial indicator and rotates the three-jaw chuck 6 via handle 309 to rotate the intermediate shaft forging blank 8 to measure the runout of the outer diameter. The operator observes and records the changes in the readings of the two dial indicators 2. If the readings of the dial indicators 2 are within the allowable range of variation, the runout of the outer diameter of the intermediate shaft forging blank 8 is considered acceptable; if the readings of the dial indicators 2 are outside the allowable range of variation, the runout of the outer diameter of the intermediate shaft forging blank 8 is considered unacceptable.

[0041] When it is necessary to inspect intermediate shaft forging blanks 8 of different lengths, the axial position of the idler roller can be adjusted by loosening the locking screw 502.

[0042] Furthermore, the universal magnetic base is existing technology, and its structure and principle will not be described in detail here.

[0043] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A horizontal runout gauge for intermediate shaft forging blanks, characterized in that: It includes a base plate (1) and a dial indicator (2); the base plate (1) is connected to a rotating mechanism (3) and a translation mechanism (4); the rotating mechanism (3) includes a bearing seat (301), a main shaft (302) is rotatably connected to the bearing seat (301), and a clamp is connected to one end of the main shaft (302); the translation mechanism (4) is connected to a lifting mechanism (5), and the lifting mechanism (5) includes two rollers; the dial indicator (2) is connected to a universal magnetic base, and the universal magnetic base is adsorbed onto the base plate (1).

2. The horizontal runout gauge for intermediate shaft forgings as described in claim 1, characterized in that: The rotating mechanism (3) also includes a support plate (303), a bearing seat (301) connected to the support plate (303), and the support plate (303) connected to the base plate (1); the bearing seat (301) has a stepped hole at its axial center, and a first bearing (304), a second bearing (305) and a third bearing (306) are interference-fitted in the stepped hole. The main shaft (302) is interference-fitted in the inner ring of the three bearings. End caps (307) are connected to both ends of the stepped hole of the bearing seat (301), and the two end caps (307) are in contact with the outer ends of the first bearing (304) and the third bearing (306) respectively.

3. The horizontal runout gauge for intermediate shaft forgings as described in claim 2, characterized in that: The rear end of the main shaft (302) is connected to a handwheel (308), and a handle (309) is connected to the handwheel (308). The locking nut (310) is threadedly fitted to the main shaft (302), and the inner end of the locking nut (310) contacts the inner ring of the first bearing (304).

4. The horizontal runout gauge for intermediate shaft forgings as described in claim 2 or 3, characterized in that: A sleeve (311) is provided between the first bearing (304) and the second bearing (305), and a washer (312) is connected between the second bearing (305) and the third bearing (306). The spindle (302) is fitted with the sleeve (311) and the washer (312) with clearance.

5. The horizontal runout gauge for intermediate shaft forgings as described in claim 2 or 3, characterized in that: The clamp is a three-jaw chuck (6), and the head of the spindle (302) is connected to a flange (313). The three-jaw chuck (6) is connected to the flange (313).

6. The horizontal runout gauge for intermediate shaft forgings as described in claim 1, characterized in that: The translation mechanism (4) includes an optical axis guide rail (401), the two ends of which are connected to the base plate (1) through supports, and a slider (402) is slidably fitted on the optical axis guide rail (401).

7. The horizontal runout gauge for intermediate shaft forgings as described in claim 6, characterized in that: The lifting mechanism (5) also includes a base (501), which is connected to the slider (402) by a locking screw (502) and the locking screw (502) can contact the base plate (1); a vertical plate (503) is connected to the base (501), and a U-shaped adjustment groove (504) is provided on the vertical plate (503). The adjustment plate is connected to the adjustment groove (504) by an adjustment screw (512), and a vertical support screw (505) is connected to the adjustment plate. The support screw (505) can contact the base (501); an indicator arrow (506) is provided on the adjustment plate, and a scale line (507) is provided on the vertical plate (503).

8. The horizontal runout gauge for intermediate shaft forgings as described in claim 7, characterized in that: The roller consists of two horizontally arranged fourth bearings (508). The fourth bearings (508) are connected to the fixing pin (511) by hexagonal bolts A (509). The fixing pin (511) is connected to the adjusting plate by hexagonal bolts B (510). The fixing pin (511) is parallel to the main shaft (302).

9. The horizontal runout gauge for intermediate shaft forgings as described in claim 8, characterized in that: It also includes a pressure mechanism (7), one end of which is connected to the base plate (1), and the other end is located above the lifting mechanism (5).

10. The horizontal runout gauge for intermediate shaft forgings as described in claim 9, characterized in that: The pressure mechanism (7) includes a bracket (701), a rocker arm (702) is rotatably connected to the top of the bracket (701), and a pressure wheel (703) is connected to one end of the rocker arm (702).

Images