Internal expansion positioning device for belt pulley machining

Abstract

The utility model relates to the technical field of belt pulley machining, in particular to an internal expansion positioning device for belt pulley machining, which comprises a first fixing seat, the first fixing seat comprises a first fixing sleeve, the outer wall of the first fixing seat is provided with the first fixing sleeve, and the outer wall of the first fixing sleeve is provided with a connecting plate. A first U-shaped frame is installed at the end, away from the first fixing sleeve, of the connecting plate, a first gear body is rotationally installed in the first U-shaped frame, a second U-shaped frame is installed on the outer wall of the first gear body, and the outer wall of the first gear body is sleeved with a chain. According to the belt pulley internal expansion positioning device, firstly, the threaded rod slides to drive the chain to rotate at the same time, the chain is meshed with the first gear body, and therefore the chain slides to drive the first gear body and the second U-shaped frames to rotate at the same time, and the three sets of second U-shaped frames drive the positioning roller to rotate to conduct internal expansion positioning on the belt pulley; and therefore, an operator can operate conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley processing, in particular to an internal expansion positioning device for pulley processing. Background Art

[0002] Pulleys are hub parts, which are generally relatively large in size. The manufacturing process is generally based on casting and forging. Generally, the larger ones are designed by casting, and the material is generally cast iron (better casting performance), and cast steel is rarely used (steel has poor casting performance); generally, the smaller ones can be designed by forging, and the material is steel. Pulleys are mainly used in situations where power is transmitted over long distances. When processing the pulley, it is necessary to use a positioning device to position the pulley, so as to facilitate the operator to process.

[0003] At present, most of the pulley processing internal expansion positioning devices on the market are not convenient for operators to perform internal expansion positioning of the pulley when processing, positioning and fixing the pulley, which can easily cause the pulley to fall during processing, thereby affecting the processing effect of the pulley. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the fact that most of the pulley processing internal expansion positioning devices on the market currently exist in the above-mentioned or prior art, it is inconvenient for operators to perform internal expansion positioning on the pulley when processing, positioning and fixing the pulley, which can easily cause the pulley to fall during processing, thereby affecting the processing effect of the pulley. Therefore, the utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a pulley processing internal expansion positioning device.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: the pulley processing internal expansion positioning device comprises a first fixed seat, which comprises a first fixed sleeve, the outer wall of the first fixed seat is installed with the first fixed sleeve, and the outer wall of the first fixed sleeve is installed with a connecting plate, the end of the connecting plate away from the first fixed sleeve is installed with a first U-shaped frame, the first U-shaped frame is rotatably installed inside the first gear body, and the outer wall of the first gear body is installed with a second U-shaped frame, and the outer wall of the first gear body is sleeved with a chain;

[0008] A positioning and fixing mechanism includes a second fixing seat, which is installed on the outer wall of the first fixing sleeve, a second fixing sleeve is installed at the bottom end of the second fixing seat, and a first through hole is opened inside the second fixing sleeve, and an installation bin is opened inside the second fixing sleeve, a toothed disc body that passes through the installation bin is installed inside the first through hole through roller rotation, and a threaded hole is opened inside the toothed disc body, a threaded rod is connected to the internal thread of the threaded hole, and connecting seats are installed on the side walls at both ends of the threaded rod, and the connecting seats are hinged to the chain.

[0009] As a preferred solution of the pulley processing internal expansion positioning device of the utility model, wherein: a sliding rod is installed on the side wall of one end of the second fixed sleeve, and a sliding sleeve is sleeved on the outer wall of the sliding rod, and a limiting plate is installed on one end of the sliding rod.

[0010] As a preferred solution of the pulley processing internal expansion positioning device of the utility model, wherein: a driving motor is installed on the side wall at one end inside the installation bin, and a driving shaft is installed on the output end of the driving motor through a coupling, and a second gear body is installed at one end of the driving shaft.

[0011] As a preferred solution of the pulley processing internal expansion positioning device of the utility model, wherein: the second gear body and the toothed disc body are meshed with each other.

[0012] As a preferred solution of the pulley processing internal expansion positioning device of the utility model, there are three groups of connecting plates with the same structure, and the three groups of connecting plates are installed on the outer wall of the first fixed sleeve with equal spacing.

[0013] As a preferred solution of the pulley processing internal expansion positioning device of the utility model, wherein; there are three groups of the second U-shaped frames with the same structure, and the three groups of the second U-shaped frames and the outer wall of the first gear body are welded into an integrated structure.

[0014] As a preferred solution of the pulley processing internal expansion positioning device of the utility model, wherein; a positioning roller is installed at one end of the second U-shaped frame away from the first gear body, and the outer wall of the positioning roller is installed with anti-slip grooves.

[0015] The pulley processing internal expansion positioning device of the utility model has the following beneficial effects:

[0016] 1. The utility model first starts the driving motor to drive the driving shaft and the second gear body to rotate, and the second gear body is meshed with the toothed disc body, so that the second gear body rotates to drive the toothed disc body to rotate at the same time, and is threadedly connected with the threaded rod through the threaded hole, and the sliding rod and the sliding sleeve cooperate with each other, so that the toothed disc body rotates to drive the threaded rod to slide inside the threaded hole through the sliding sleeve and the sliding rod, so as to drive the chain to rotate at the same time through the sliding of the threaded rod, and the chain is meshed with the first gear body, so that the chain slides to drive the first gear body and the second U-shaped frame to rotate at the same time, so that the three groups of second U-shaped frames drive the positioning rollers to rotate to position the pulley internally, so as to facilitate the operation of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 This is a schematic diagram of the main structure of the internal expansion positioning device for the pulley processing;

[0019] Figure 2 Processing of internal expansion positioning device for pulley Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 A schematic diagram of the rotation structure of the second U-shaped frame of the pulley processing internal expansion positioning device;

[0021] Figure 4 This is a schematic diagram of the gear main structure of the internal expansion positioning device for the pulley.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. First fixed seat; 101. First fixed sleeve; 102. Connecting plate; 103. First U-shaped frame; 104. First gear body; 105. Second U-shaped frame; 1051. Positioning roller; 106. Chain;

[0024] 2. Positioning and fixing mechanism; 201. Second fixing seat; 202. Second fixing sleeve; 203. First through hole; 204. Mounting compartment; 205. Toothed disc body; 206. Threaded hole; 207. Threaded rod; 208. Sliding rod; 209. Sliding sleeve; 2010. Limiting plate; 2011. Driving motor; 2012. Driving shaft; 2013. Second gear body; 2014. Connecting seat. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0028] Example 1: Reference Figures 1 to 4 , which is the first embodiment of the utility model, and the embodiment provides a pulley processing internal expansion positioning device, which can realize most pulley processing internal expansion positioning devices on the market. When the pulley is processed, positioned and fixed, it is inconvenient for the operator to perform internal expansion positioning on the pulley, which easily causes the pulley to fall during processing, thereby affecting the processing effect of the pulley. The problem includes a first fixed seat 1, which includes a first fixed sleeve 101, the outer wall of the first fixed seat 1 is installed with the first fixed sleeve 101, and the outer wall of the first fixed sleeve 101 is installed with a connecting plate 102, and the end of the connecting plate 102 away from the first fixed sleeve 101 is installed with a first U-shaped frame 103 The first gear body 104 is rotatably mounted inside the first U-shaped frame 103, and the outer wall of the first gear body 104 is mounted with a second U-shaped frame 105, the outer wall of the first gear body 104 is sleeved with a chain 106, there are three groups of connecting plates 102 of the same structure, and the three groups of connecting plates 102 are installed on the outer wall of the first fixed sleeve 101 at equal intervals, there are three groups of second U-shaped frames 105 of the same structure, and the three groups of second U-shaped frames 105 and the outer wall of the first gear body 104 are welded into an integrated structure, and a positioning roller 1051 is installed at one end of the second U-shaped frame 105 away from the first gear body 104, and the outer wall of the positioning roller 1051 is installed with anti-slip grooves;

[0029] The positioning and fixing mechanism 2 comprises a second fixing seat 201, which is mounted on the outer wall of the first fixing sleeve 101, a second fixing sleeve 202 is mounted on the bottom end of the second fixing seat 201, a first through hole 203 is provided inside the second fixing sleeve 202, a mounting chamber 204 is provided inside the second fixing sleeve 202, a toothed disc body 205 penetrating the mounting chamber 204 is mounted inside the first through hole 203 through roller rotation, a threaded hole 206 is provided inside the toothed disc body 205, a threaded rod 207 is threadedly connected inside the threaded hole 206, and connecting seats 2014 are mounted on the side walls at both ends of the threaded rod 207, and the connecting seat 2014 is hinged to the chain 106;

[0030] A sliding rod 208 is installed on the side wall at one end of the second fixed sleeve 202, and a sliding sleeve 209 is sleeved on the outer wall of the sliding rod 208, a limiting plate 2010 is installed on one end of the sliding rod 208, a driving motor 2011 is installed on the side wall at one end inside the mounting bin 204, and a driving shaft 2012 is installed on the output end of the driving motor 2011 through a coupling, and a second gear body 2013 is installed on one end of the driving shaft 2012, and the second gear body 2013 is meshed with the toothed disc body 205.

[0031] The specific working principle is that when the pulley needs to be positioned and fixed, the driving motor 2011 is first started to drive the driving shaft 2012 and the second gear body 2013 to rotate, and the second gear body 2013 is meshed with the toothed disc body 205, so that the second gear body 2013 rotates to drive the toothed disc body 205 to rotate at the same time, and the threaded hole 206 is threadedly connected with the threaded rod 207, and the sliding rod 208 and the sliding sleeve 209 cooperate with each other to make the toothed disc body 205 rotate. The threaded rod 207 is driven to slide inside the threaded hole 206 through the sliding sleeve 209 and the sliding rod 208, so that the chain 106 is driven to rotate at the same time through the sliding of the threaded rod 207, and the chain 106 is meshed with the first gear body 104, so that the chain 106 slides and drives the first gear body 104 and the second U-shaped frame 105 to rotate at the same time, so that the three groups of second U-shaped frames 105 drive the positioning rollers 1051 to rotate to position the pulley internally, so as to facilitate the operation of the operator.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The pulley processing internal expansion positioning device is characterized by: include, A first fixing seat (1), comprising a first fixing sleeve (101), the first fixing sleeve (101) being mounted on an outer wall of the first fixing seat (1), and a connecting plate (102) being mounted on the outer wall of the first fixing sleeve (101), a first U-shaped frame (103) being mounted on one end of the connecting plate (102) away from the first fixing sleeve (101), a first gear body (104) being rotatably mounted inside the first U-shaped frame (103), and a second U-shaped frame (105) being mounted on the outer wall of the first gear body (104), and a chain (106) being sleeved on the outer wall of the first gear body (104); The positioning and fixing mechanism (2) comprises a second fixing seat (201), wherein the second fixing seat (201) is mounted on the outer wall of the first fixing sleeve (101), a second fixing sleeve (202) is mounted at the bottom end of the second fixing seat (201), a first through hole (203) is provided inside the second fixing sleeve (202), a mounting chamber (204) is provided inside the second fixing sleeve (202), a toothed disc body (205) which passes through the mounting chamber (204) is rotatably mounted inside the first through hole (203) via a roller, a threaded hole (206) is provided inside the toothed disc body (205), a threaded rod (207) is threadedly connected inside the threaded hole (206), and connecting seats (2014) are mounted on the side walls at both ends of the threaded rod (207), and the connecting seats (2014) are hinged to the chain (106).

2. The pulley processing internal expansion positioning device according to claim 1, characterized in that: A sliding rod (208) is installed on the side wall of one end of the second fixed sleeve (202), and a sliding sleeve (209) is sleeved on the outer wall of the sliding rod (208), and a limiting plate (2010) is installed on one end of the sliding rod (208).

3. The pulley processing internal expansion positioning device according to claim 1, characterized in that: A driving motor (2011) is installed on the side wall at one end of the installation chamber (204), and a driving shaft (2012) is installed at the output end of the driving motor (2011) via a coupling, and a second gear body (2013) is installed at one end of the driving shaft (2012).

4. The pulley processing internal expansion positioning device according to claim 3, characterized in that: The second gear body (2013) and the toothed disc body (205) are meshed with each other.

5. The pulley processing internal expansion positioning device according to claim 1, characterized in that: The connecting plates (102) are of three groups with the same structure, and the three groups of connecting plates (102) are installed on the outer wall of the first fixed sleeve (101) at equal intervals.

6. The pulley processing internal expansion positioning device according to claim 1, characterized in that: There are three groups of the second U-shaped frames (105) with the same structure, and the three groups of the second U-shaped frames (105) and the outer wall of the first gear body (104) are welded into an integrated structure.

7. The pulley processing internal expansion positioning device according to claim 1, characterized in that: A positioning roller (1051) is installed at one end of the second U-shaped frame (105) away from the first gear body (104), and an outer wall of the positioning roller (1051) is installed with anti-slip grooves.

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