Positioning clamp structure for bearing ring machine tool

Abstract

The utility model discloses a positioning fixture structure for a bearing ring machine tool, which comprises a ring fixture seat, a ring fixing seat and a servo driving motor, a through hole chute is arranged at the top of the front of the ring fixture seat, and one side of the back of the through hole chute is connected with the servo driving motor through a support. A left-handed screw part is installed at the output end of the servo driving motor, an integrally-formed right-handed screw part is installed at one end of the left-handed screw part, threaded connecting bases are installed at the thread position of the left-handed screw part and the thread position of the right-handed screw part correspondingly, and ferrule limiting columns are installed at one ends of the two threaded connecting bases correspondingly. The two ferrule limiting columns are fixedly arranged on the base, the limiting column heads are fixedly arranged at one ends of the two ferrule limiting columns, the ferrule limiting pressing sleeves are installed at one ends of the two limiting column heads in a sleeved mode, and the ferrule bending pressing parts are installed at one ends of the two ferrule limiting pressing sleeves. And the connection strength and stability of the bearing ring are ensured.

Description

Technical Field

[0001] The utility model relates to a positioning fixture structure for a bearing ring machine tool, belonging to the technical field of positioning fixtures. Background Art

[0002] Bearing is an important component in modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its rotational motion, and ensure its rotation accuracy. The inner ring and outer ring of the bearing are generally called rings. The bearing ring is an annular part of a radial rolling bearing with one or more raceways. During processing, for the purpose of lubrication, oil holes are usually opened on the outer circumference of the ring. The number of oil holes can be two, three or four, determined according to actual needs. Usually, the oil holes are connected to the oil groove on the inner surface of the ring.

[0003] Patent No. CN202221948737.2 discloses a bearing ring drilling fixture, a fixed base on a workbench, two sets of positioning columns connected to the front end of the base, the two sets of positioning columns are in a straight line, the bearing ring is sleeved on the two sets of positioning columns, a pressure plate is pressed on the end face of the bearing ring, the pressure plate is connected to the base through a fixed column, and the drill bit is correspondingly arranged on the side wall of the bearing ring. The drilling fixture of the bearing ring of the utility model has a simple structure, and only two points of support and positioning are required, and one point of positioning and pressing can fix and clamp the bearing ring. When it is necessary to switch the workstation, it is only necessary to operate the fixed column and rotate the bearing ring. The end face drilling of the bearing ring can complete multiple positions of drilling through a set of positioning fixtures. When the size of the bearing ring changes, it is only necessary to adjust the position of the two sets of positioning columns to complete the drilling of bearing rings of various sizes. The fixing fixture has strong versatility and high dispatchability.

[0004] Although the above-mentioned clamp is highly versatile, it is prone to instability when clamping bearing rings. The reason is that the positioning column is connected by plug-in connection. Since drilling has large vibration, the plug-in connection cannot guarantee the connection strength. For this reason, we design a positioning clamp structure for bearing ring machine tools. Utility Model Content

[0005] The utility model aims to provide a positioning fixture structure for a bearing ring machine tool to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning fixture structure for a bearing ring machine tool, comprising a ring fixture seat, a ring fixing seat and a servo drive motor, a through-hole slide groove is opened on the top of the front side of the ring fixture seat, and one side of the back side of the through-hole slide groove is connected to the servo drive motor through a bracket, and a left-handed screw rod is installed at the output end of the servo drive motor, and an integrated right-handed screw rod is installed at one end of the left-handed screw rod, and a threaded connection seat is installed at the thread of the left-handed screw rod and the thread of the right-handed screw rod, and a ring limiting column is installed at one end of the two threaded connection seats, and a limiting column head is fixedly set at one end of the two ring limiting columns, and a ring limiting pressing sleeve is installed at one end of the two limiting column heads, and a ring bending pressing portion is installed at one end of the two ring limiting pressing sleeves.

[0007] In the above-mentioned positioning fixture structure for a bearing ring machine tool, the ring fixing seat is arranged at the center of the bottom of the ring fixture seat, a ring clamping strip is installed on the top side of the ring fixing seat, a spring segment is installed in the middle of the top of the ring fixing seat, and a ring lower pressure plate is fixedly installed at one end of the spring segment.

[0008] In the above-mentioned positioning fixture structure for a bearing ring machine tool, a sliding track is installed in the middle of the groove at the bottom end of the ring fixture seat, a driving slider is slidably installed inside the sliding track, and an upper ring pressure plate is installed at the bottom end of the driving slider, the upper ring pressure plate corresponds to the lower ring pressure plate and the upper ring pressure plate is in contact with the ring clamping strip.

[0009] In the above-mentioned positioning fixture structure for a bearing ring machine tool, a group of auxiliary sliding grooves are opened inside the through-hole sliding groove, and the auxiliary sliding grooves are slidably connected to the two ring limiting columns.

[0010] In the above-mentioned positioning fixture structure for a bearing ring machine tool, a bearing mounting seat is provided at the connection between the right-handed screw member and the left-handed screw member, and the bearing mounting seat is located at the symmetrical center of the back side of the through hole slide groove.

[0011] In the above-mentioned positioning fixture structure for a bearing ring machine tool, the rotation angle of the ring limiting pressing sleeve around the limiting column head is a circumferential angle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model discloses a positioning fixture structure for a bearing ring machine tool, by arranging a servo drive motor, a left-hand screw member, a right-hand screw member, a bearing mounting seat and a threaded connection seat, so that the servo drive motor drives the left-hand screw member and the right-hand screw member to rotate synchronously, thereby making the two threaded connection seats approach each other, making the two ring limiting columns also approach each other, and installing a ring limiting pressing sleeve on the limiting column head, adjusting the angle so that the ring bending pressing part and the bearing ring are crimped, which has a good limiting effect and can avoid shaking during drilling, thereby ensuring the strength and stability of the bearing ring connection; by arranging a ring fixing seat, a ring clamping strip, a sliding track, a driving slider, a ring upper pressure plate, a spring section, and a ring lower pressure plate, the bottom of the bearing ring can be pressed and limited, so that the bottom is not easy to deviate during the drilling process, and after drilling, the bearing ring can be quickly ejected by using the rebound force, which is convenient for removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of a positioning fixture structure for a bearing ring machine tool of the utility model;

[0015] Figure 2 This is a schematic diagram of the back structure of a positioning fixture structure ring fixture seat for a bearing ring machine tool of the utility model;

[0016] Figure 3 The utility model is a structural schematic diagram of a positioning fixture structure ring fixing seat for a bearing ring machine tool.

[0017] In the figure: 1. ferrule fixture seat; 2. through-hole slide groove; 3. ferrule limiting column; 4. ferrule fixing seat; 5. limiting column head; 6. ferrule limiting pressing sleeve; 7. ferrule clamping strip; 8. ferrule bending pressing part; 9. servo drive motor; 10. left-handed screw member; 11. right-handed screw member; 12. bearing mounting seat; 13. threaded connection seat; 14. sliding track; 15. driving slider; 16. ferrule upper pressure plate; 17. spring segment; 18. ferrule lower pressure plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution for a positioning fixture structure for a bearing ring machine tool:

[0020] Embodiment 1: The positioning fixture includes a ring fixture seat 1, a ring fixing seat 4 and a servo drive motor 9. A through hole slide groove 2 is opened on the top of the front side of the ring fixture seat 1. One side of the back side of the through hole slide groove 2 is connected to the servo drive motor 9 through a bracket. A left-handed screw member 10 is installed at the output end of the servo drive motor 9. An integrated right-handed screw member 11 is installed at one end of the left-handed screw member 10. Threaded connection seats 13 are installed at the threads of the left-handed screw member 10 and the threads of the right-handed screw member 11. Ring limiting columns 3 are installed at one end of the two threaded connection seats 13. Limiting column heads 5 are fixedly provided at one end of the two ring limiting columns 3. Ring limiting pressing sleeves 6 are installed at one end of the two limiting column heads 5. Ring bending pressing portions 8 are installed at one end of the two ring limiting pressing sleeves 6.

[0021] Principle: The servo drive motor 9 drives the left-handed screw member 10 and the right-handed screw member 11 to rotate synchronously, so that the two threaded connection seats 13 are close to each other, and the two ring limit columns 3 are also close to each other, and the ring limit pressing sleeve 6 is installed on the limit column head 5. The angle is adjusted so that the ring bending pressing part 8 and the bearing ring are crimped, which has a good limiting effect, can avoid shaking during drilling, and ensure the strength and stability of the bearing ring connection.

[0022] Embodiment 2: Figure 1 and Figure 3 As shown, the ring fixing seat 4 is arranged at the center of the bottom of the ring clamp seat 1, and a ring clamping strip 7 is installed on the top side of the ring fixing seat 4, and a spring segment 17 is installed in the middle of the top of the ring fixing seat 4, and a ring lower pressure plate 18 is fixedly installed at one end of the spring segment 17; a sliding track 14 is installed in the middle of the groove at the bottom end of the ring clamp seat 1, and a driving slider 15 is slidably installed inside the sliding track 14, and a ring upper pressure plate 16 is installed at the bottom end of the driving slider 15, and the ring upper pressure plate 16 corresponds to the ring lower pressure plate 18 and the ring upper pressure plate 16 is in contact with the ring clamping strip 7.

[0023] The purpose of the above structural design is to press and limit the bottom of the bearing ring so that the bottom is less likely to deviate during the drilling process, and to use the rebound force to quickly pop out the bearing ring after drilling for easy removal.

[0024] In this embodiment, in order to ensure stable movement of the two ferrule limiting columns 3 , a group of auxiliary sliding grooves are provided inside the through hole sliding groove 2 , and the auxiliary sliding grooves are slidably connected to the two ferrule limiting columns 3 .

[0025] In this embodiment, in order to ensure high rotation accuracy of the right-handed screw member 11 and the left-handed screw member 10, a bearing mounting seat 12 is provided at the connection between the right-handed screw member 11 and the left-handed screw member 10, and the bearing mounting seat 12 is located at the symmetrical center of the back side of the through hole slide groove 2.

[0026] In this embodiment, in order to better fit the position of the bearing ring, the rotation angle of the ring limiting pressing sleeve 6 around the limiting column head 5 is a circumferential angle.

[0027] Working principle: The positioning fixture of the utility model is composed of a ring fixture seat 1, a ring fixing seat 4 and a servo drive motor 9. A through-hole slide groove 2 is opened on the top of the front of the ring fixture seat 1. A left-handed screw member 10 and an integrated right-handed screw member 11 are installed at the output end of the servo drive motor 9. The threads of the left-handed screw member 10 and the threads of the right-handed screw member 11 are both installed with threaded connection seats 13. The ring limit column 3 and the limit column head 5 are connected through one end of the two threaded connection seats 13. The ring limiting pressing sleeve 6 with the ring bending pressing part 8 drives the left-handed screw member 10 and the right-handed screw member 11 to rotate synchronously when the servo drive motor 9 is energized, so that the two threaded connection seats 13 are close to each other, and the two ring limiting columns 3 are also close to each other, and the ring limiting pressing sleeve 6 is installed on the limiting column head 5, and the angle is adjusted so that the ring bending pressing part 8 and the bearing ring are crimped, which has a good limiting effect, can avoid shaking during drilling, and ensure the strength and stability of the bearing ring connection.

[0028] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A positioning fixture structure for a bearing ring machine tool, comprising a ring fixture seat (1), a ring fixing seat (4) and a servo drive motor (9), characterized in that: A through hole slide groove (2) is provided at the top of the front side of the ring clamp seat (1), and one side of the back side of the through hole slide groove (2) is connected to the servo drive motor (9) through a bracket. A left-handed screw member (10) is installed at the output end of the servo drive motor (9), and one end of the left-handed screw member (10) is installed with an integrated right-handed screw member (11). The threads of the left-handed screw member (10) and the threads of the right-handed screw member (11) are both installed with threaded connection seats (13), and one end of the two threaded connection seats (13) is installed with a ring limiting column (3), and one end of the two ring limiting columns (3) is fixedly provided with a limiting column head (5), and one end of the two limiting column heads (5) is sleeved with a ring limiting pressing sleeve (6), and one end of the two ring limiting pressing sleeves (6) is installed with a ring bending pressing portion (8).

2. A positioning fixture structure for a bearing ring machine tool according to claim 1, characterized in that: The ring fixing seat (4) is arranged at the center of the bottom of the ring clamp seat (1), and a ring clamping strip (7) is installed on the top side of the ring fixing seat (4). A spring section (17) is installed in the middle of the top of the ring fixing seat (4), and a ring lower pressure plate (18) is fixedly installed at one end of the spring section (17).

3. A positioning fixture structure for a bearing ring machine tool according to claim 2, characterized in that: A sliding track (14) is installed in the middle of the groove at the bottom end of the ring clamp seat (1), and a driving slider (15) is slidably installed inside the sliding track (14). A ring upper pressure plate (16) is installed at the bottom end of the driving slider (15), and the ring upper pressure plate (16) corresponds to the ring lower pressure plate (18) and the ring upper pressure plate (16) is in contact with the ring clamping strip (7).

4. A positioning fixture structure for a bearing ring machine tool according to claim 1, characterized in that: A group of auxiliary sliding grooves are provided inside the through hole sliding groove (2), and the auxiliary sliding grooves are slidably connected to two ferrule limiting columns (3).

5. The positioning fixture structure for a bearing ring machine tool according to claim 1, characterized in that: A bearing mounting seat (12) is provided at the connection between the right-handed screw member (11) and the left-handed screw member (10), and the bearing mounting seat (12) is located at the symmetrical center of the back side of the through hole slide groove (2).

6. A positioning fixture structure for a bearing ring machine tool according to claim 1, characterized in that: The rotation angle of the ferrule limiting pressing sleeve (6) around the limiting column head (5) is a circumferential angle.

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