Positioning device and rotary table with same

Abstract

The utility model discloses a positioning device which comprises a first positioning module and a second positioning module which are arranged in a matched mode, the first positioning module comprises a first installation seat and at least two rolling bodies arranged on the first installation seat, and a positioning channel is formed between the two rolling bodies. The second positioning module comprises a second mounting seat and a positioning block which can be arranged on the second mounting seat in a free sliding manner by being driven, and the positioning block can be inserted into the positioning channel to complete position locking of the first positioning module; the rolling body is arranged on the first mounting seat in a manner of forming rolling fit with the positioning block; the utility model further discloses a rotary table with the positioning device. According to the positioning device, accurate positioning of the rotation angle position of the high-load rotary table can be achieved, meanwhile, the positioning device has the good service life, and the positioning efficiency of the rotary table can be improved; the rotary table can have high positioning efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment, in particular to a positioning device and a turntable with the positioning device. Background Art

[0002] At present, in the process of producing the white body of different models, a polyhedron turntable is often used to achieve switching. The fixtures and workpieces of different models are placed on the polyhedron turntable, and the turntable is rotated to match the different models on the turntable to the production line. In the prior art, the positioning of the turntable's rotation angle position is generally completed by the form of pin-pin hole matching, wherein the pin hole is set on the turntable, and the pin shaft is set on the base. When the turntable stops after deceleration, the pin shaft matches the pin hole under the thrust of the cylinder. This positioning method of pin-pin hole matching requires that the stop position deviation of the turntable cannot be too large, otherwise the pin shaft cannot be inserted into the pin hole. This makes the high-load turntable only able to rotate at a very low speed to ensure the accuracy of the stop position, and the switching efficiency is low. In addition, because the pin-pin hole matching is a sliding friction, the friction force is large, the pin shaft is not easy to put into place, wears a lot, and easily leads to the pin jamming phenomenon and reduces the service life of the positioning structure.

[0003] Therefore, there is an urgent need to provide a new positioning device and a turntable having the positioning device. The positioning device is required to be able to facilitate the precise positioning of the rotation angle position of the high-load turntable. At the same time, the positioning device has a good service life and can help improve the positioning efficiency of the turntable; the turntable can have a higher positioning efficiency. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a new positioning device and a turntable with the positioning device, which are urgently needed. The positioning device can facilitate the precise positioning of the rotation angle position of the high-load turntable. At the same time, the positioning device has a good service life and can help improve the positioning efficiency of the turntable; the turntable can have a higher positioning efficiency.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a positioning device, comprising a first positioning module and a second positioning module that can be used together, the first positioning module comprising a first mounting seat and at least two rolling bodies arranged on the first mounting seat, and a positioning channel is formed between the two rolling bodies; the second positioning module comprises a second mounting seat and a positioning block that can be driven to slide on the second mounting seat with a single degree of freedom, and the positioning block can be inserted into the positioning channel to complete the position locking of the first positioning module; the rolling body is arranged on the first mounting seat in a manner that can form a rolling fit with the positioning block.

[0006] Furthermore, the second positioning module further includes a driving mechanism disposed on the second mounting seat, and the driving mechanism is connected to the positioning block for driving the positioning block to slide.

[0007] Furthermore, the driving mechanism includes a driving cylinder fixedly mounted on the second mounting seat, and the telescopic end of the driving cylinder is fixedly connected to the positioning block.

[0008] Furthermore, the driving mechanism also includes a guide seat fixedly mounted on the second mounting seat, the guide seat is provided with a guide hole, and the positioning block is slidably mounted in the guide hole.

[0009] Furthermore, the positioning block is a cylindrical block, the guide hole is a circular hole configured to conform to the positioning block, and two parallel positioning planes are provided on the side wall of the upper end of the positioning block.

[0010] Furthermore, a limit stopper is fixedly provided on the top surface of the guide seat, and one side surface of the limit stopper is in contact with one of the positioning planes of the positioning block.

[0011] Furthermore, the rolling element is a rolling bearing, and the inner ring of the rolling bearing is fixedly connected to the first mounting seat.

[0012] Furthermore, there are two rolling bodies, which are arranged on the side of the first mounting seat.

[0013] Furthermore, a rounded transition structure is provided on the top edge of the positioning block.

[0014] A turntable includes the positioning device as described above, wherein the first mounting seat is fixedly connected to the rotating part of the turntable, and the second mounting seat is fixedly installed on the fixed part.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The positioning device provided by the utility model has a rolling fit between the positioning block and the two rolling elements constituting the positioning channel, that is, rolling friction occurs when the positioning block is inserted into the positioning channel, and the good rotation performance of the rolling elements reduces friction and wear, so the positioning block can be easily inserted between the two rolling elements, thereby achieving the purpose of hard limit, with a low risk of jamming of the device, low wear, and a long service life; when the positioning device is used for rotational positioning of the turntable, it is easy to correct the turntable back to the theoretical position through the positioning block, that is, a certain position deviation of the turntable can be allowed, so that the rotation speed of the turntable does not need to be deliberately reduced for a turntable with a high load, which is conducive to improving the positioning efficiency of the turntable;

[0017] The turntable provided by the utility model has high rotation and positioning efficiency, which is beneficial to improving production efficiency.

[0018] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the positioning device of the utility model

[0020] Figure 2 This is a schematic diagram of the structure of the turntable of the utility model

[0021] Figure markings: 1-first positioning module; 101-first mounting seat; 102-rolling body; 102a-positioning channel; 2-second positioning module; 201-second mounting seat; 202-positioning block; 202a-positioning plane; 202b-rounded transition structure; 203-driving mechanism; 203a-driving cylinder; 203b-guide seat; 203b1-guide hole; 204-limit block; 3-rotating part. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only used to illustrate the basic concept of the present invention. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0023] See also Figure 1-2, this embodiment discloses a positioning device, including a first positioning module 1 and a second positioning module 2 that can be used together, the first positioning module 1 includes a first mounting seat 101 and at least two rolling bodies 102 arranged on the first mounting seat 101, and a positioning channel 102a is formed between the two rolling bodies 102; the second positioning module 2 includes a second mounting seat 201 and a positioning block 202 that can be driven to slide on the second mounting seat 201 with a single degree of freedom, and the positioning block 202 can be inserted into the positioning channel 102a to complete the position locking of the first positioning module 1; the rolling body 102 is arranged on the first mounting seat 101 in a manner that can form a rolling fit with the positioning block 202; here, the structure of the first mounting seat 101 is not limited, and the rolling body 1 02 provides a mounting position, wherein the rolling body 102 is preferably set to two under the premise of meeting the strength requirements, and the gap between the two rolling bodies 102 is the positioning channel 102a. When in use, the first mounting seat 101 can be fixedly installed on the moving part that needs to be positioned, and then the positioning block 202 can be inserted into the positioning channel 102a to complete the locking of the first mounting seat; the rolling body 102 can be a roller, a rolling sleeve, a rolling bearing, etc., and a rolling bearing is preferably used here; similarly, the structure of the second mounting seat 201 is not limited here, and it only needs to provide a mounting position for the positioning block 202; the positioning block 202 can be a rectangular block, a cylindrical block, etc.; the driving method of the positioning block 202 is not limited here, and it can be driven manually or by setting a driving mechanism;

[0024] The positioning device in the above structure has a rolling fit between the positioning block 202 and the two rolling bodies 102 constituting the positioning channel 102a, that is, when the positioning block 202 is inserted into the positioning channel 102a, there is rolling friction, and the good rotation performance of the rolling body 102 reduces friction and wear, so the positioning block 202 can be easily inserted between the two rolling bodies 102, thereby achieving the purpose of hard limit, and the risk of the device getting stuck is small, the wear is small, and it has a good service life; when the positioning device is used for the rotation positioning of the turntable, it is easy to correct the turntable back to the theoretical position through the positioning block 202, that is, the turntable can be allowed to have a certain position deviation, so that for a high-load turntable, there is no need to deliberately reduce the rotation speed of the turntable, which is beneficial to improving the positioning efficiency of the turntable; the above positioning device can be used as a mechanical positioning device for a turntable, a rotating hub, or a sliding table, a trolley and other movable mechanisms to reach a specified position.

[0025] In this embodiment, the second positioning module 2 also includes a driving mechanism 203 arranged on the second mounting seat 201, and the driving mechanism 203 is connected to the positioning block 202 to drive the sliding of the positioning block 202; here, a variety of driving mechanisms are allowed to drive the sliding of the positioning block 202, such as a driving cylinder, a hydraulic cylinder, a screw nut mechanism, etc. In this structural design, the positioning block 202 is driven by setting the driving mechanism 203, which is conducive to realizing automatic positioning, and there is no need to manually drive the positioning block 202 to slide, which is conducive to further improving the positioning efficiency.

[0026] In this embodiment, the driving mechanism 203 includes a driving cylinder 203a fixedly mounted on the second mounting base 201, and the telescopic end of the driving cylinder 203a is fixedly connected to the positioning block 202; the driving cylinder 203a can be fixedly mounted on the second mounting base 201 through a connecting base or directly, and the positioning block 202 can be fixedly connected to the telescopic end of the driving cylinder 203a by welding, screw connection, etc.; in this structural design, the driving of the positioning block 202 is completed by adopting the driving cylinder 203a, which has a simple structure, fast action, simple control, and is conducive to reducing costs.

[0027] In this embodiment, the driving mechanism 203 also includes a guide seat 203b fixedly mounted on the second mounting seat 201, and a guide hole 203b1 is provided on the guide seat 203b, and the positioning block 202 is slidably fitted in the guide hole 203b1; specifically, the guide seat 203b can be fixedly mounted on the second mounting seat 201 by screws, and a bushing can be provided in the guide hole 203b1 as needed; in this structural design, by providing the guide seat 203b, it is beneficial to improve the stability of the sliding movement of the positioning block 202 and improve the overall shear resistance.

[0028] In this embodiment, the positioning block 202 is a cylindrical block, the guide hole 203b1 is a circular hole that is configured to conform to the positioning block 202, and two parallel positioning planes 202a are provided on the upper side wall of the positioning block 202; the structure of the cylindrical block and the circular hole is convenient to process, which is conducive to reducing costs and easy to control manufacturing accuracy; and the setting of the positioning plane 202a facilitates stable positioning.

[0029] In this embodiment, a limit block 204 is fixedly provided on the top surface of the guide seat 203b, and one side of the limit block 204 is in contact with one of the positioning planes 202a of the positioning block 202; specifically, the limit block 204 here is a limit plate, which is fixedly installed on the top surface of the guide seat 203b by screws. By setting the limit block 204, the positioning block 202 can be further rotated to improve the shear resistance of the overall structure.

[0030] In this embodiment, the rolling body 102 is a rolling bearing, and the inner ring of the rolling bearing is fixedly connected to the first mounting seat 101; the inner ring of the rolling bearing can be mounted on the raised shaft on the first mounting seat 101 by interference fit; the rolling bearing structure is adopted, and the friction force is very small, which is conducive to further improving the overall friction reduction efficiency.

[0031] In this embodiment, there are two rolling bodies 102, which are arranged on the side of the first mounting seat 101. Here, the first mounting seat 101 is a mounting plate structure, and the rolling bodies 102 are arranged on the circumferential side of the first mounting seat 101. There are two of them, which has a simple structure and is easy to install on the side, which helps to reduce production costs.

[0032] In this embodiment, the top edge of the positioning block 202 is provided with a rounded transition structure 202b. By providing the rounded transition structure 202b, the impact of the positioning block 202 on the rolling body 102 when sliding into the positioning channel 102a can be reduced, and it can also play a certain role in enhancing guidance.

[0033] This embodiment also discloses a turntable, including the positioning device as described above, wherein the first mounting seat 101 is fixedly connected to the rotating part 3 of the turntable, where the rotating part 3 is the rotating part of the turntable, and the second mounting seat 201 is fixedly installed on the fixed part; the fixed part here can be the fixed base of the turntable itself, or it can be the ground foundation; wherein the first mounting seat 101 and the second mounting seat 201 can both be fixedly connected to the corresponding components by screws; the turntable rotation positioning efficiency in this structural design is high, which is conducive to improving production efficiency.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A positioning device, characterized in that: The invention comprises a first positioning module (1) and a second positioning module (2) which can be used in conjunction with each other, wherein the first positioning module (1) comprises a first mounting seat (101) and at least two rolling bodies (102) arranged on the first mounting seat (101), and a positioning channel (102a) is formed between the two rolling bodies (102); the second positioning module (2) comprises a second mounting seat (201) and a positioning block (202) which can be driven to slide on the second mounting seat (201) with a single degree of freedom, and the positioning block (202) can be inserted into the positioning channel (102a) to complete the position locking of the first positioning module (1); the rolling body (102) is arranged on the first mounting seat (101) in a manner that can form a rolling fit with the positioning block (202).

2. The positioning device according to claim 1, characterized in that: The second positioning module (2) further comprises a driving mechanism (203) arranged on the second mounting seat (201); the driving mechanism (203) is connected to the positioning block (202) and is used to drive the positioning block (202) to slide.

3. The positioning device according to claim 2, characterized in that: The driving mechanism (203) comprises a driving cylinder (203a) fixedly mounted on the second mounting seat (201), and a telescopic end of the driving cylinder (203a) is fixedly connected to the positioning block (202).

4. The positioning device according to claim 3, characterized in that: The driving mechanism (203) further comprises a guide seat (203b) fixedly mounted on the second mounting seat (201); a guide hole (203b1) is provided on the guide seat (203b); and the positioning block (202) is slidably mounted in the guide hole (203b1).

5. The positioning device according to claim 4, characterized in that: The positioning block (202) is a cylindrical block, the guide hole (203b1) is a circular hole configured to conform to the positioning block (202), and two parallel positioning planes (202a) are provided on the upper side wall of the positioning block (202).

6. The positioning device according to claim 5, characterized in that: A limit stopper (204) is fixedly provided on the top surface of the guide seat (203b), and one side surface of the limit stopper (204) is fitted to one of the positioning planes (202a) of the positioning block (202).

7. The positioning device according to claim 1, characterized in that: The rolling body (102) is a rolling bearing, and the inner ring of the rolling bearing is fixedly connected to the first mounting seat (101).

8. The positioning device according to claim 7, characterized in that: There are two rolling bodies (102) arranged on the side of the first mounting seat (101).

9. The positioning device according to claim 1, wherein: The top edge of the positioning block (202) is provided with a rounded transition structure (202b).

10. A turntable comprising the positioning device according to any one of claims 1 to 9, characterized in that: The first mounting seat (101) is fixedly connected to the rotating part (3) of the turntable, and the second mounting seat (201) is fixedly mounted on the fixed part.

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