A roller detection end head fixing seat indexing positioning mechanism

Abstract

The utility model discloses a kind of roller detection end head fixing seat index positioning mechanism, including T-shaped seat, rotary support head, T-shaped sleeve, adjusting screw sleeve, spring, bolt and ball bearing, rotary support head is annularly distributed and is provided with positioning sleeve;T-shaped seat is fixedly installed with the guiding sleeve that can be with positioning sleeve in coaxial position, T-shaped sleeve is coaxially arranged with guiding sleeve and is fixedly installed on T-shaped seat, T-shaped sleeve left end has first limit surface;This mechanism can adjust and switch the rotation state and fixed state of rotary support head, can satisfy the use demand of straightness test, full bounce test, adjusting screw sleeve is adjusted left and right position to bolt, with the advantage of using state problem after adjustment, bolt cannot be separated from adjusting screw sleeve.In addition, spring is set to bolt is always in compressed state, avoid bolt to shake due to the gap between guiding sleeve, cause its and adjusting screw sleeve jamming problem.

Description

Technical Field

[0001] This utility model belongs to the field of roller inspection technology, and in particular relates to a roller inspection end fixing seat indexing and positioning mechanism. Background Technology

[0002] Printing rollers are widely used in publishing, packaging, textiles, building materials, and other industries, and are an indispensable component in the printing process. After precision machining on a machine tool, printing rollers undergo straightness testing, total runout testing, and dynamic balancing testing. Straightness and total runout testing can be performed simultaneously after a single positioning. Straightness testing requires the roller to remain stationary and, after indexing, to be tested multiple times using a dial indicator. Total runout testing involves rotating the roller and using a dial indicator. Therefore, it is necessary to switch between positioned indexing and free rotation states of the rotating support head to meet the testing requirements. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a mechanism for switching the positioning state of a rotating support head, so as to meet the usage requirements of roller straightness detection and full runout detection respectively.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: a roller detection end fixing seat indexing and positioning mechanism, including a T-shaped seat, a rotating support head, a T-shaped sleeve, an adjusting screw sleeve, a spring, a pin and a ball bearing, wherein the rotating support head is rotatably mounted on the T-shaped seat, and positioning sleeves are arranged in a ring on the rotating support head; A guide sleeve that can be coaxially positioned with the positioning sleeve is fixedly installed inside the T-shaped seat. The T-shaped sleeve and the guide sleeve are coaxially arranged and fixedly installed on the T-shaped seat. The left end of the T-shaped sleeve has a first limiting surface, the left end of the pin is configured with an external thread structure, and the right end of the pin has a second limiting surface. The pin is slidably installed inside the guide sleeve and the T-shaped sleeve. A spring is sleeved on the pin, and the two ends of the spring act on the first limiting surface and the second limiting surface, respectively. The longitudinal section of the right end limiting section of the pin and the guide sleeve is configured with a square structure. The cage of the ball bearing is fixedly installed on the outer end of the T-shaped sleeve, and the adjusting screw sleeve is fixedly installed in the rotating body of the ball bearing. The adjusting screw sleeve is screwed to the external thread structure on the left end of the pin.

[0005] Preferably, a cover plate for shielding and protecting the ball bearing is screwed and fixed on the right end face of the T-shaped sleeve.

[0006] Preferably, the rotating support head is screwed with a clamping bolt for clamping and fixing the positioning sleeve.

[0007] Preferably, an adjusting knob is fixedly fitted onto the outer end of the adjusting screw sleeve, and the adjusting knob is provided with a through hole that communicates with the threaded hole of the adjusting screw sleeve.

[0008] Compared with the prior art, the advantages of this utility model are: this mechanism can adjust and switch between the rotational and fixed states of the rotating support head, meeting the requirements of straightness testing and full runout testing. The adjusting sleeve adjusts the left and right position of the pin, which has the advantage of addressing the issue of the adjusted state during use, as the pin will not separate from the adjusting sleeve. In addition, a spring is provided to ensure that the pin is always in a compressed state, avoiding the problem of the pin wobbling due to gaps between it and the guide sleeve, which could cause it to jam with the adjusting sleeve. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] Figure 1 This is a perspective view of the present invention.

[0011] Figure 2 This is a top view of the present invention.

[0012] Figure 3 yes Figure 2 A sectional view along the AA direction. Detailed Implementation

[0013] The present invention will now be described in detail with reference to specific embodiments: like Figures 1 to 3 The roller detection end fixing seat indexing and positioning mechanism shown includes a T-shaped seat 1, a rotating support head 2, a T-shaped sleeve 3, an adjusting screw sleeve 4, a spring 6, a pin 7 and a ball bearing 9. The rotating support head 2 is rotatably mounted on the T-shaped seat 1, and positioning sleeves 21 are arranged in a ring on the rotating support head 2. A guide sleeve 8, which can be coaxially positioned with the positioning sleeve 21, is fixedly installed inside the T-shaped seat 1. The T-shaped sleeve 3 is coaxially arranged with the guide sleeve 8 and fixedly installed on the T-shaped seat 1. The left end of the T-shaped sleeve 3 has a first limiting surface. The left end of the pin 7 is configured with an external thread structure, and the right end of the pin 7 has a second limiting surface. The pin 7 is slidably installed inside the guide sleeve 8 and the T-shaped sleeve 3. The spring 6 is sleeved on the pin 7. The two ends of the spring 6 act on the first limiting surface and the second limiting surface, respectively. The longitudinal section of the right limiting section of the pin 7 and the guide sleeve 8 is configured with a square structure. There is a gap between the pin 7 and the guide sleeve 8, which facilitates disassembly and replacement after the pin 7 is worn or broken.

[0014] like Figure 3 As shown, the cage of the ball bearing 9 is fixedly installed on the outer end of the T-shaped sleeve 3, and the adjusting screw sleeve 4 is fixedly installed in the rotating body of the ball bearing 9. The adjusting screw sleeve 4 is screwed to the external thread structure on the left end of the pin 7.

[0015] A cover plate 32 is screwed and fixed on the right end face of the T-shaped sleeve 3 to protect the ball bearing 9, so as to prevent oil and dust from entering the ball bearing 9 and affecting its rotation.

[0016] The rotating support head 2 is screwed with a clamping bolt 22 for clamping and fixing the positioning sleeve 21. Loosening the clamping bolt 22 allows the positioning sleeve 21 to be disassembled and replaced, so as to facilitate the installation and removal of the positioning sleeve 21.

[0017] An adjusting knob 5 is fixedly installed on the outer end of the adjusting screw sleeve 4. The adjusting knob 5 is provided with a through hole 51 that communicates with the threaded hole of the adjusting screw sleeve 4, so that the adjusting screw sleeve 4 can be rotated by adjusting the knob 5.

[0018] Two fixed-base indexing and positioning mechanisms are installed on the slide table for coordinated use. A three-jaw chuck is installed on the rotary support head 2, and the roller under test is mounted on the three-jaw chuck for center clamping and positioning. During straightness testing, the rotary adjusting sleeve 4 pushes the pin 7 to the right, pushing the pin 7 into the positioning sleeve 21, restricting the rotation of the rotary support head 2 and the roller under test. A dial indicator is used to test the straightness. The rotary adjusting sleeve 4 then drives the pin 7 to the left, disengaging the pin 7 from the positioning sleeve 21. After indexing the rotary support head 2 and the roller under test, the pin 7 is pushed back into the positioning sleeve 21 for straightness testing of the next area of ​​the roller. During full runout testing, the rotary adjusting sleeve 4 drives the pin 7 to the left, disengaging the pin 7 from the positioning sleeve 21. At this point, the rotary support head 2 and the roller under test can rotate freely, and a dial indicator is used to test the full runout.

Claims

1. A roller inspection end fixing seat indexing and positioning mechanism, characterized in that: It includes a T-shaped seat (1), a rotating support head (2), a T-shaped sleeve (3), an adjusting screw sleeve (4), a spring (6), a pin (7) and a ball bearing (9). The rotating support head (2) is rotatably mounted on the T-shaped seat (1), and positioning sleeves (21) are arranged in a ring on the rotating support head (2). The T-shaped seat (1) is fixedly installed with a guide sleeve (8) that can be coaxial with the positioning sleeve (21). The T-shaped sleeve (3) is coaxially set with the guide sleeve (8) and fixedly installed on the T-shaped seat (1). The left end of the T-shaped sleeve (3) has a first limiting surface. The left end of the pin (7) is set with an external thread structure. The right end of the pin (7) has a second limiting surface. The pin (7) is slidably installed in the guide sleeve (8) and the T-shaped sleeve (3). The spring (6) is sleeved on the pin (7). The two ends of the spring (6) act on the first limiting surface and the second limiting surface respectively. The longitudinal section of the right end limiting section of the pin (7) and the guide sleeve (8) is set with a square structure. The cage of the ball bearing (9) is fixedly installed on the outer end of the T-shaped sleeve (3), and the adjusting screw sleeve (4) is fixedly installed in the rotating body of the ball bearing (9). The adjusting screw sleeve (4) is screwed to the external thread structure on the left end of the pin (7).

2. The roller detection end fixing seat indexing and positioning mechanism according to claim 1, characterized in that: The right end face of the T-shaped sleeve (3) is screwed with a cover plate (32) for shielding and protecting the ball bearing (9).

3. The roller detection end fixing seat indexing and positioning mechanism according to claim 1, characterized in that: The rotating support head (2) is screwed with a clamping bolt (22) for clamping and fixing the positioning sleeve (21).

4. The roller detection end fixing seat indexing and positioning mechanism according to claim 1, characterized in that: An adjusting knob (5) is fixedly installed on the outer end of the adjusting screw sleeve (4). The adjusting knob (5) has a through hole (51) that is connected to the threaded hole of the adjusting screw sleeve (4).

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