Positioning and clamping device for combined support type products

Abstract

The utility model provides a combined support type product positioning and clamping device which comprises a positioning locking piece and a positioning tool detachably installed on the positioning locking piece in a limiting mode, and the positioning tool comprises a positioning bottom plate and a special-shaped positioning boss which is arranged on the top of the positioning bottom plate and matched with a combined support type product to be machined in shape. A groove hole is formed in the middle of the special-shaped positioning boss, a plurality of first positioning holes and a plurality of screw holes are formed in the periphery of the special-shaped positioning boss at intervals, and positioning columns are embedded in part of the first positioning holes. The positioning and clamping device provided by the utility model is simple in structure, reliable in performance, convenient to operate and convenient for operators to machine products, greatly shortens the time for clamping each time, and can be applied to machining of such parts.

Description

Technical Field

[0001] The utility model relates to an auxiliary positioning device for parts processing, in particular to a positioning and clamping device for combined bracket products. Background Art

[0002] As an indispensable and important part of the industrial field, combined bracket products are widely used in the fields of automobile manufacturing, aerospace, precision machinery, etc. With the development of the manufacturing industry, the requirements for the accuracy, stability and production efficiency of combined bracket products are constantly increasing. However, in the field of machining, the traditional clamping method has problems such as low repeated clamping positioning accuracy, complex operation, and limited scope of application, which restricts the improvement of the manufacturing level of combined bracket products.

[0003] Due to the complex and diverse structures of combined bracket parts, the clamping is relatively cumbersome and the clamping time is also long, which greatly affects the overall efficiency. Therefore, after analysis and research, it is necessary to design a special positioning clamping device with high precision, high stability and rapid interchangeability, which is of great significance to improving the competitiveness of the manufacturing industry. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to provide a positioning and clamping device for combined bracket products in view of the above technical defects existing in the existing clamping and positioning methods for combined bracket parts.

[0005] The utility model adopts the following technical solutions to solve the above technical problems:

[0006] A positioning and clamping device for a combined bracket-type product, comprising a positioning locking piece and a positioning tool detachably limited and mounted on the positioning locking piece, wherein: the positioning tool comprises a positioning base plate and a special-shaped positioning boss arranged on the top of the positioning base plate and matching the shape of the combined bracket-type product to be processed; a slot hole is provided in the middle of the special-shaped positioning boss, and a plurality of first positioning holes and a plurality of screw holes are provided at intervals along its periphery, and positioning columns are embedded in some of the first positioning holes.

[0007] Preferably, the positioning base plate is a rectangular plate-shaped structure, a first groove is provided at a non-central position of the bottom, a circular boss is formed at the central position, and a second groove connected to the slot hole upward is provided in the middle of the circular boss.

[0008] More preferably, a second positioning hole is provided at the bottom of the positioning base plate at the right end of the first groove, and a plurality of mounting holes are arranged at intervals in the first groove, which are threadedly connected with corresponding screw holes on the special-shaped positioning boss using a plurality of locking bolts.

[0009] Preferably, the positioning tool further comprises a positioning bolt and a positioning locking sleeve, wherein:

[0010] The positioning locking sleeve is a hollow structure, and a card slot is provided on the outer peripheral body of the lower end thereof, and the card slot is arranged in coordination with a plurality of card beads in the positioning locking member;

[0011] The positioning bolt is inserted into the hollow of the positioning locking sleeve to fix the positioning locking sleeve in the second groove at the bottom of the positioning base plate.

[0012] Preferably, the positioning tool further comprises a positioning pin, wherein:

[0013] The upper end of the positioning pin is fixedly installed in the second positioning hole at the bottom of the positioning base plate, and the lower end is embedded in the positioning groove at the top of the positioning locking member.

[0014] Preferably, the positioning locking member comprises a positioning body and a coaxially arranged support column, a pneumatic lifting block, a plurality of return springs, and a plurality of beads, wherein:

[0015] An inner cavity is provided inside the positioning body, and a socket connected to the inner cavity is provided on the top. An annular limiting column extending downward is provided on the inner periphery of the socket, and the inner cavity space located at the top of the pneumatic lifting block forms a closed pressure chamber;

[0016] The support column is a hollow annular cylindrical structure, which is fixedly mounted at the bottom of the inner cavity corresponding to the socket above, and its top surface is set as an arc surface with a high inside and a low outside;

[0017] The pneumatic lifting block is a hollow H-shaped ring structure, which is sleeved on the outer peripheral body of the support column, and a push platform with a larger diameter is provided in the middle of its inner wall;

[0018] The return springs are multiple and are arranged in a circular pattern in the groove at the bottom of the pneumatic lifting block, and the upper and lower ends of the return springs are respectively fixedly connected to the pneumatic lifting block and the bottom of the inner cavity;

[0019] There are several clamping beads arranged in a ring shape on the top arc surface of the support column. The top spherical surfaces are arranged with gaps between the annular limiting columns above, and the outer spherical surfaces can be abutted and connected with the pushing platform that can be lifted up and down.

[0020] More preferably, an air inlet connector and an air exhaust connector are provided on the side wall of the positioning body, one end of the air inlet connector and the air exhaust connector are respectively connected to the pressure chamber, and the other end is externally connected to a compressor.

[0021] More preferably, the left and right ends of the positioning body are respectively provided with machine platform mounting holes, and the top thereof is provided with a positioning groove corresponding to the position of the positioning pin on the positioning tool.

[0022] More preferably, a first O-ring is used to seal between the inner wall of the pneumatic lifting block and the outer wall of the support column, a second O-ring is used to seal between the outer wall and the lower inner wall of the inner cavity, and a third O-ring is used to seal between the outer wall at its upper end and the upper inner wall of the inner cavity, so as to form a closed pressure chamber at the top of the pneumatic lifting block.

[0023] More preferably, the positioning fixtures are at least two sets, which are used alternately with the positioning locking parts fixedly installed on the machine platform.

[0024] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0025] The utility model provides a positioning and clamping device for combined bracket products. A positioning tool with a specific structure is designed for combined bracket products. The combined bracket products to be processed can be accurately and stably installed on the positioning tool by using bolts and positioning columns. The positioning tool and positioning locking parts can realize rapid positioning and replacement. The positioning and clamping device has a simple structure, reliable performance, and easy operation, which is convenient for operators to process products and greatly shortens the time for each clamping. It can be used in the processing of such parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional structural schematic diagram of a positioning and clamping device for a combined bracket product of the utility model;

[0027] Figure 2 This is a top view of the structure of a positioning and clamping device for a combined bracket product of the utility model;

[0028] Figure 3 This is a longitudinal cross-sectional structural diagram of a positioning and clamping device for a combined bracket product of the utility model;

[0029] Figure 4 It is a schematic diagram of the top view of the positioning tool in the positioning and clamping device of a combined bracket product of the utility model;

[0030] Figure 5 This is a bottom-up structural schematic diagram of a positioning tool in a positioning and clamping device for a combined bracket product of the utility model;

[0031] Figure 6 It is a schematic diagram of the longitudinal cross-sectional structure of a positioning tool in a positioning and clamping device for a combined bracket product of the utility model. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0034] In some embodiments, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a positioning and clamping device for a combined bracket product is provided. The device mainly comprises a positioning and locking member 100 and a positioning tool 200. The positioning tool 200 is detachably limited and installed on the top of the positioning and locking member 100.

[0035] The positioning tool 200 includes two parts: a positioning base plate 210 and a special-shaped positioning boss 220. The structural shape of the special-shaped positioning boss 220 matches the shape of the processed combination bracket products, which is convenient for positioning and fixing the processed combination bracket products. The special-shaped positioning boss 220 is detachably installed on the top of the positioning base plate 210, which is convenient for replacing the special-shaped positioning boss 220 with different structural shapes according to the processing requirements of different combination bracket products.

[0036] In order to realize the positioning and installation of the combined bracket products processed on behalf of others, a slot hole 221 is opened in the middle of the special-shaped positioning boss 220, and a plurality of first positioning holes 222 and a plurality of screw holes 224 are spaced apart along the periphery of the special-shaped positioning boss 220, and a positioning column 223 is embedded in some of the first positioning holes 222. The combined bracket products are positioned by the positioning column 223, and the positioned special-shaped positioning boss 220 is fixedly installed on the positioning base plate 210 by bolts, and the lower end of the bolt is threadedly locked in the corresponding screw hole 224.

[0037] In some of the embodiments, Figure 3 , Figure 5 and Figure 6 As shown, the positioning base plate 210 is a rectangular plate-shaped structure, and a first groove 211 is provided at a non-central position and a non-peripheral position of the bottom thereof. In order to achieve accurate positioning with the positioning locking member 100, a circular boss 212 is formed at the central position of the positioning base plate 210, and a second groove 213 is provided in the middle of the circular boss 212 and is connected to the slot 221 upwards, for installing the positioning bolt 230 and the positioning locking sleeve 240.

[0038] A second positioning hole 214 is provided at the bottom of the positioning base plate 210 at the right end of the first groove 211, and a positioning pin 250 is embedded in the second positioning hole 214. The upper end of the positioning pin 250 is fixedly installed in the second positioning hole 214 at the bottom of the positioning base plate 210, and the lower end is embedded in the positioning groove 117 at the top of the positioning locking member 100. The positioning pin 250 and the positioning locking sleeve 240 realize the locking and positioning of the positioning fixture 200 on the positioning locking member 100.

[0039] In addition, in order to realize the detachable installation of the positioning base plate 210 and the special-shaped positioning boss 220, it is convenient to flexibly replace the special-shaped positioning boss 220. A plurality of mounting holes 215 are arranged at intervals in the first groove 211, which are threadedly connected with the corresponding screw holes 224 on the special-shaped positioning boss 220 by a plurality of locking bolts 216, so that the special-shaped positioning boss 220 is fixedly installed on the positioning base plate 210.

[0040] In some of the embodiments, Figure 3 As shown, in order to realize the rapid positioning of the positioning locking member 100 and the positioning fixture 200, a coaxially arranged positioning bolt 230 and a positioning locking sleeve 240 are also provided at the bottom of the positioning fixture 200. The positioning locking sleeve 240 is an inverted cone structure with a small lower end and a large upper head, which is convenient for alignment and embedding in the socket at the top of the positioning body 110.

[0041] Specifically, the positioning bolt 230 is inserted into the middle hole of the positioning locking sleeve 240 , and the top thread of the positioning bolt 230 is installed in the screw hole of the second groove 213 at the bottom of the positioning base plate 210 , and then the positioning locking sleeve 240 is fixedly installed at the bottom of the positioning base plate 210 .

[0042] The positioning locking sleeve 240 is made of stainless steel or aluminum alloy, and has a hollow inverted cone structure. A card slot 241 is provided on the outer periphery of the lower end thereof. The card slot 241 is arranged in coordination with a plurality of card beads 150 in the positioning locking member 100, so as to facilitate the use of the card beads 150 to lock the positioning locking sleeve 240, thereby achieving fixed clamping of the positioning tooling 200.

[0043] In some of the embodiments, Figure 3 As shown, the positioning locking member 100 mainly includes a positioning body 110 and a coaxially arranged support column 120, a pneumatic lifting block 130, a plurality of return springs 140, and a plurality of locking beads 150. The support column 120, the pneumatic lifting block 130, the plurality of return springs 140, and the plurality of locking beads 150 are installed in the inner cavity 111 of the positioning body 110 in cooperation with each other, so as to realize locking and fixing or separation with the positioning locking sleeve 240 at the bottom of the positioning tooling 200.

[0044] Specifically, an inner cavity 111 is provided inside the positioning body 110, and a socket connected to the inner cavity 111 is provided on the top for inserting the positioning locking sleeve 240. An annular limiting column 112 extending downward is provided on the inner periphery of the socket, and the inner cavity space at the top of the pneumatic lifting block 130 forms a closed pressure chamber 113, and by controlling the pressure in the pressure chamber 113, the pneumatic lifting block 130 is pushed downward to overcome the upward supporting force of the return spring 140 and move downward.

[0045] The support column 120 is a hollow annular cylindrical structure, which is fixedly installed at the bottom of the inner cavity 111 corresponding to the socket above, and its top surface is set as an arc surface with high inside and low outside. A number of card beads 150 are arranged in a ring shape on the top arc surface of the support column 120, and the top spherical surfaces are arranged with a gap between them and the annular limit column 112 above, and the outer spherical surfaces can be abutted and connected with the pushing platform 131 that rises and falls.

[0046] The pneumatic lifting block 130 is a hollow H-shaped ring structure, which is sleeved on the outer periphery of the support column 120, and a pushing platform 131 with an enlarged diameter is provided in the middle of its inner wall; there are a plurality of return springs 140, which are arranged in a ring-shaped interval in the groove at the bottom of the pneumatic lifting block 130, and the upper and lower ends thereof are respectively fixedly connected to the pneumatic lifting block 130 and the bottom of the inner cavity 111.

[0047] The main working principle of the positioning locking member 100 is that by inputting a pressure higher than the air pressure into the pressure chamber 113, the air pressure of the pressure chamber 113 is controlled to overcome the force of the return spring 140 to drive the pneumatic lifting block 130 to move downward. During the downward movement of the pneumatic lifting block 130, the push platform 131 of its side wall is separated from the clamping beads 150, and a plurality of clamping beads 150 move outward along the arc surface with a high inner side and a low outer side on the top surface of the support column 120 under the action of their own gravity, thereby expanding the size of the through hole surrounded by the plurality of clamping beads 150. The positioning locking sleeve 240 at the bottom of the positioning tool 200 is inserted into the through hole in the middle of the clamping beads 150.

[0048] After the positioning locking sleeve 240 is locked and fixed and the total processing is completed, the pressure in the pressure chamber 113 is reduced. At this time, the pneumatic lifting block 130 is driven to move upward under the action of the reset spring 140. In the process of driving the pneumatic lifting block 130 to move upward, the pushing platform 131 on its side wall pushes a number of clamping beads 150 to move inward to clamp the positioning locking sleeve 240, thereby achieving the fixation of the positioning tooling 200.

[0049] The method for disengaging the positioning locking sleeve 240 from the clamping bead 150 is as described above. The pressure in the pressure chamber 113 is controlled to drive the pneumatic lifting block 130 to move downward, release the clamping bead 150, and move the clamping bead 150 outward, so that the positioning locking sleeve 240 can be easily pulled out from between several clamping beads 150 to complete the replacement of the positioning tooling 200.

[0050] In addition, if Figure 1 As shown, an air inlet connector 114 and an air outlet connector 115 are provided on the side wall of the positioning body 110, one end of the air inlet connector 114 and the air outlet connector 115 are respectively connected to the pressure chamber 113, and the other end is externally connected to a compressor. The externally connected compressor provides high-pressure gas to the pressure chamber 113 in the positioning locking member 100 to overcome the action of the return spring 140 and push the pneumatic lifting block 130 downward.

[0051] In order to ensure the sealing of the pressure chamber 113, sealing rings are respectively provided at various joints. For example, a first O-ring is used to seal between the inner wall of the pneumatic lifting block 130 and the outer wall of the support column 120, a second O-ring is used to seal between the outer wall of the pneumatic lifting block 130 and the lower inner wall of the inner chamber 111, and a third O-ring is used to seal between the outer wall of the upper end of the pneumatic lifting block 130 and the upper inner wall of the inner chamber 111, so as to enclose the closed pressure chamber 113 at the top of the pneumatic lifting block 130.

[0052] like Figure 1 and Figure 3 As shown, in order to facilitate the rapid installation of the positioning locking member 100 on the processing machine, machine mounting holes 116 are respectively opened at the left and right ends of the positioning body 110, and the positioning locking member 100 is stably installed on the processing machine using bolts passing through the mounting holes 116.

[0053] In addition, a positioning groove 117 is provided at the top of the positioning locking member 100 corresponding to the position of the positioning pin 250 on the positioning fixture 200. When the positioning fixture 200 is installed on the positioning locking member 100, the positioning pin 250 at the bottom of the positioning fixture 200 is embedded in the positioning groove 117, and the positioning locking sleeve 240 is used to achieve two-point positioning, thereby ensuring the accuracy of the installation of the positioning fixture 200 and the positioning locking member 100.

[0054] As a preferred embodiment, the positioning locking member 100 is a group, and the positioning fixture 200 is two groups. The two groups of the positioning fixture 200 are used alternately with the positioning locking member 100 fixedly installed on the machine. The working principle is as follows:

[0055] First, the operator places the assembled bracket parts to be processed on the special-shaped positioning boss 220 on the first set of positioning tooling 200, forms a stable positioning effect through the positioning column 223 and the special-shaped positioning boss 220, and then uses screws to lock the assembled bracket parts on the screw holes 224 on the top of the special-shaped positioning boss 220;

[0056] Then, the positioning tool 200 is integrally mounted on the positioning locking member 100 by using the positioning bolt 230 , the positioning locking sleeve 240 and the positioning pin 250 for processing.

[0057] When the first set of positioning tooling 200 is being processed, the above process can be repeated on the second set of positioning tooling 200 to position and install the combined bracket parts. After the parts processing on the first set of positioning tooling 200 is completed, the second set of positioning tooling 200 is interchanged with the first set of positioning tooling 200 to achieve rapid positioning and clamping.

[0058] In summary, the interchangeable positioning and clamping device of the combined bracket product has a simple structure, reliable performance, and easy operation, which is convenient for operators to process products and shortens the time for each clamping. It can be used in the processing of such parts.

[0059] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0060] Secondly, the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0061] Finally, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning and clamping device for a combined bracket product, characterized in that: It includes a positioning locking piece and a positioning tool that is detachably limited and installed on the positioning locking piece, wherein: the positioning tool includes a positioning base plate and a special-shaped positioning boss arranged on the top of the positioning base plate and matching the shape of the processed combined bracket product; a slot hole is opened in the middle of the special-shaped positioning boss, and a plurality of first positioning holes and a plurality of screw holes are opened at intervals along its periphery, and positioning columns are embedded in some of the first positioning holes.

2. The positioning and clamping device for combined bracket products according to claim 1 is characterized in that: The positioning base plate is a rectangular plate-shaped structure, a first groove is provided at a non-central position of the bottom thereof, a circular boss is formed at the central position, and a second groove connected to the slot hole upward is provided in the middle of the circular boss.

3. The positioning and clamping device for combined bracket products according to claim 2 is characterized in that: A second positioning hole is provided at the bottom of the positioning base plate at the right end of the first groove, and a plurality of mounting holes are arranged at intervals in the first groove, which are threadedly connected with corresponding screw holes on the special-shaped positioning boss using a plurality of locking bolts.

4. The positioning and clamping device for combined bracket products according to claim 1, characterized in that: The positioning tool also includes a positioning bolt and a positioning locking sleeve, wherein: The positioning locking sleeve is a hollow structure, and a card slot is provided on the outer peripheral body of the lower end thereof, and the card slot is arranged in coordination with a plurality of card beads in the positioning locking member; The positioning bolt is inserted into the hollow of the positioning locking sleeve to fix the positioning locking sleeve in the second groove at the bottom of the positioning base plate.

5. The positioning and clamping device for combined bracket products according to claim 1, characterized in that: The positioning tool also includes a positioning pin, wherein: The upper end of the positioning pin is fixedly installed in the second positioning hole at the bottom of the positioning base plate, and the lower end is embedded in the positioning groove at the top of the positioning locking member.

6. The positioning and clamping device for combined bracket products according to claim 1, characterized in that: The positioning locking member comprises a positioning body and a coaxially arranged support column, a pneumatic lifting block, a plurality of return springs, and a plurality of locking beads, wherein: An inner cavity is provided inside the positioning body, and a socket connected to the inner cavity is provided on the top. An annular limiting column extending downward is provided on the inner periphery of the socket, and the inner cavity space located at the top of the pneumatic lifting block forms a closed pressure chamber; The support column is a hollow annular cylindrical structure, which is fixedly mounted at the bottom of the inner cavity corresponding to the socket above, and its top surface is set as an arc surface with a high inside and a low outside; The pneumatic lifting block is a hollow H-shaped ring structure, which is sleeved on the outer peripheral body of the support column, and a push platform with a larger diameter is provided in the middle of its inner wall; The return springs are multiple and are arranged in a circular pattern in the groove at the bottom of the pneumatic lifting block, and the upper and lower ends of the return springs are respectively fixedly connected to the pneumatic lifting block and the bottom of the inner cavity; There are several clamping beads arranged in a ring shape on the top arc surface of the support column. The top spherical surfaces are arranged with gaps between the annular limiting columns above, and the outer spherical surfaces can be abutted and connected with the pushing platform that can be lifted up and down.

7. The positioning and clamping device for combined bracket products according to claim 6, characterized in that: An air inlet connector and an air outlet connector are disposed on the side wall of the positioning body. One end of the air inlet connector and the air outlet connector are respectively connected to the pressure chamber, and the other end is externally connected to a compressor.

8. The positioning and clamping device for combined bracket products according to claim 6, characterized in that: The left and right ends of the positioning body are respectively provided with machine platform mounting holes, and the top thereof is provided with a positioning groove corresponding to the position of the positioning pin on the positioning tool.

9. The positioning and clamping device for combined bracket products according to claim 6, characterized in that: A first O-ring is used to seal the inner wall of the pneumatic lifting block and the outer wall of the support column, a second O-ring is used to seal the outer wall and the lower inner wall of the inner cavity, and a third O-ring is used to seal the outer wall at its upper end and the upper inner wall of the inner cavity, so as to form a closed pressure chamber at the top of the pneumatic lifting block.

10. The positioning and clamping device for combined bracket products according to claim 1, characterized in that: The positioning fixtures are at least two sets, which are used alternately with the positioning locking parts fixedly installed on the machine platform.

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