Fixing clamp

Abstract

The utility model relates to a fixing clamp which comprises a table body, the table body is provided with a hole milling fixing part, the hole milling fixing part comprises a bearing table, a plurality of positioning plates and a pressing plate, the bearing table is installed on the table body and used for containing a workpiece body, the positioning plates are installed on the bearing table and abut against the side wall of the workpiece body, and the pressing plate is arranged on the bearing table. An abutting groove matched with the side wall of the workpiece body is formed in the side, abutting against the workpiece body, of the positioning plate, the pressing plate is fixedly arranged on the side, away from the bearing table, of the positioning plate, and the positioning plate is arranged on the side, away from the bearing table, of the workpiece body in a pressed mode and does not block the machining hole. The clamping device has the effect of reducing the damage probability of the workpiece during clamping.

Description

Technical Field

[0001] This application relates to the field of machine tool fixtures, and more particularly to a fixed fixture. Background Technology

[0002] A milling machine is a machine tool that uses a milling cutter to machine various surfaces of a workpiece. Typically, the rotation of the milling cutter is the primary motion, while the movement of the workpiece and the cutter constitutes the feed motion. It can machine planes, grooves, various curved surfaces, gears, and more. During milling, the workpiece needs to be clamped in a fixture, and then the milling head drives the milling cutter to perform the milling process.

[0003] Existing workpieces such as Figure 1 As shown, the workpiece includes a workpiece body 1, on which a machining hole 2 is provided that penetrates the thickness direction of the workpiece. Various connecting blocks 3 for connection and fixation are fixed around the workpiece. The workpiece body 1 is formed by casting. After casting, the machining hole 2 usually needs to be milled by a milling machine so that the machining hole 2 on the workpiece body 1 can meet the production requirements. However, since various connecting blocks 3 are provided around the workpiece body 1, it is easy to damage the workpiece if it is directly clamped with a bench vise. Utility Model Content

[0004] In order to reduce the probability of workpiece being damaged during clamping, this application provides a fixing fixture.

[0005] The fixing clamp provided in this application adopts the following technical solution:

[0006] A fixing fixture includes a platform, on which a milling hole fixing component is provided. The milling hole fixing component includes a receiving platform, a positioning plate, and a pressure plate. The receiving platform is installed on the platform and is used to place a workpiece body. There are several positioning plates, which are installed on the receiving platform and abut against the side wall of the workpiece body. The side of the positioning plate abutting against the workpiece body has an abutment groove adapted to the side wall of the workpiece body. The pressure plate is fixed on the side of the positioning plate away from the receiving platform, and the positioning plate presses against the side of the workpiece body away from the receiving platform without obstructing the machining hole.

[0007] By adopting the above technical solution, the upper and lower surfaces of the workpiece are clamped by the receiving platform and the pressure plate, avoiding clamping the area with connecting blocks on the side of the workpiece, reducing the probability of the workpiece being damaged during clamping. The positioning plate is set on the side wall of the workpiece body to position the workpiece body. At the same time, the pressure plate is connected to the receiving platform through the positioning plate, so that the pressure plate will not block the milling machine from milling the machining hole.

[0008] Optionally, a dismounting assembly is arranged between the positioning plate and the receiving table, the dismounting assembly comprises a dismounting socket, a dismounting block and a reinforcing member, the dismounting socket is arranged on the receiving table, the number of the dismounting sockets is the same as that of the positioning plates, the dismounting block is provided in a plurality of, the number of the dismounting blocks is the same as that of the positioning plates, the dismounting socket corresponding to the positioning plate is fixed on the side of the positioning plate facing the receiving table, the dismounting block is inserted into the dismounting socket, and the reinforcing member is provided in a plurality, the reinforcing members are arranged between the dismounting socket and the dismounting block respectively, and the reinforcing member reinforces the dismounting block in the dismounting socket.

[0009] By adopting the technical scheme, the arrangement of the dismounting assembly can facilitate the dismounting between the positioning plate and the receiving table.

[0010] Optionally, the reinforcing member comprises a reinforcing rod, a reinforcing groove and an elastic member, the reinforcing rod is slidably inserted into the receiving table, the reinforcing groove is arranged on the dismounting block, the reinforcing rod is inserted into the reinforcing groove through sliding, the elastic member is sleeved on the reinforcing rod, the elastic member drives the reinforcing rod to be inserted into the reinforcing groove through elastic force, and the end of the reinforcing rod away from the reinforcing groove extends out of the receiving table.

[0011] By adopting the technical scheme, the reinforcing member can improve the mounting strength of the dismounting block in the dismounting socket and reduce the disengagement of the positioning plate on the receiving table caused by external force.

[0012] Optionally, the receiving table is slidably provided with a linkage rod, and the linkage rod is connected to all the reinforcing rods.

[0013] By adopting the technical scheme, the arrangement of the linkage rod can facilitate the driving of all the reinforcing rods at the same time, thereby facilitating the dismounting of the dismounting block from the dismounting socket.

[0014] Optionally, the dismounting block is provided with a chamfer at the end away from the positioning plate.

[0015] By adopting the technical scheme, the arrangement of the chamfer can drive the reinforcing rod to slide when the dismounting block is inserted into the dismounting socket, thereby facilitating the insertion of the dismounting block into the dismounting socket.

[0016] Optionally, the positioning plates are connected to each other through a connecting rod, and the connecting rod is arranged away from the machining hole of the workpiece body.

[0017] By adopting the technical scheme, the connecting rod is used to connect the positioning plates, thereby facilitating the synchronous dismounting of all the positioning plates.

[0018] Optionally, the receiving table is provided with a positioning shaft corresponding to the machining hole, and the positioning shaft is slidably arranged on the receiving table and can extend out of the receiving table or be accommodated on the receiving table through sliding.

[0019] By adopting the technical scheme, the positioning shaft can assist in fixing the workpiece body before the workpiece is clamped and fixed, and can reduce the influence on the hole milling by sliding during the hole milling.

[0020] Optionally, the machining hole corresponding to the workpiece body on the table body is provided with an air inflation shaft.

[0021] By adopting the technical scheme, the air inflation shaft can fix the workpiece body through the machining hole, thereby facilitating the edge milling of the workpiece body after the hole milling.

[0022] Optionally, the table body comprises a mounting table and a rotating table, the hole milling fixing member and the air inflation shaft are arranged on the mounting table, and the rotating table is fixedly arranged at the end of the mounting table and rotatably arranged on the milling machine tool table.

[0023] By adopting the technical scheme, the rotating table can be conveniently connected with a driving member, thereby facilitating the rotation of the table body and the milling machining in multiple directions of the table body.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] The upper and lower surfaces of the workpiece are clamped by the receiving table and the pressing plate, so that the area of the workpiece side surface with the connecting block is avoided from being clamped, thereby reducing the probability of damage to the workpiece during clamping. The positioning plate is arranged on the side wall of the workpiece body to position the workpiece body, and the pressing plate is connected to the receiving table through the positioning plate, so that the pressing plate does not block the milling machining of the machining hole by the milling machine;

[0026] The positioning shaft can assist in fixing the workpiece body before the workpiece is clamped and fixed, and can reduce the influence on the hole milling by sliding during the hole milling;

[0027] The air inflation shaft can fix the workpiece body through the machining hole, thereby facilitating the edge milling of the workpiece body after the hole milling.

[0028] The rotating table can be conveniently connected with a driving member, thereby facilitating the rotation of the table body and the milling machining in multiple directions of the table body. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic view of a workpiece.

[0030] Figure 2 is a whole structural schematic view of the embodiment.

[0031] Figure 3 is Figure 2 is an enlarged view of part A in FIG.

[0032] Figure 4is a structural schematic view of another perspective of the overall structure of the embodiment.

[0033] Figure 5 is Figure 4 is an enlarged view of the B part in the middle.

[0034] Reference signs: 1, workpiece body; 2, machining hole; 3, connecting block; 4, table body; 41, mounting table; 42, rotating table; 5, hole milling fixing piece; 51, receiving table; 52, positioning plate; 53, pressing plate; 6, abutting groove; 7, dismounting assembly; 71, dismounting jack; 72, dismounting plug block; 73, reinforcing member; 731, reinforcing rod; 732, reinforcing groove; 733, elastic member; 8, linkage rod; 9, chamfer; 10, connecting rod; 11, positioning shaft; 12, gas expansion shaft. DETAILED DESCRIPTION

[0035] The following will be described in detail in combination with the accompanying Figures 2-5 The present application will be further described in detail.

[0036] First of all, it needs to be explained here that in the description of the present application, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other orientation words appear, the orientation or position relationship indicated thereby is based on the orientation or position relationship shown in the drawings, and is only for the convenience of description, and does not indicate or imply that the device or element indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; in addition, if the terms "first", "second", "third" and the like appear, they are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting" appear, they should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, can be limitingly connected such as interference fit, transition fit, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium; therefore, for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] The embodiment of the present application discloses a fixing clamp, referring to Figure 2 and Figure 3, including the table body 4, the table body 4 includes a rectangular cross-section long strip-shaped mounting table 41 and two circular rotating tables 42 fixed at both ends of the mounting table 41 in the length direction, the two circular rotating tables 42 are coaxially arranged and take the center point of the rectangle as the axis, the mounting table 41 is provided with a milling hole fixing part 5 and an air inflation shaft 12, the milling hole fixing part 5 is provided with two groups, the two groups of milling hole fixing parts 5 are respectively arranged on the opposite two side walls of the mounting table 41, in the embodiment, the air inflation shaft 12 is adapted to the machining hole 2 of the workpiece body 1 in two groups, a plurality of groups are uniformly arranged on the two faces of the mounting table 41 adjacent to the milling hole fixing part 5, the milling hole fixing part 5 is used for fixing the workpiece body 1 to mill the machining hole 2 of the workpiece body 1, and the air inflation shaft 12 is used for fixing the workpiece body 1 to mill the workpiece side surface of the workpiece body 1; the milling hole fixing part 5 and the air inflation shaft 12 are alternately arranged, after milling the hole once, whether it is forward rotation or reverse rotation, it can be rotated to the side surface milling position to mill the side surface, the machining error caused by the installation error can be avoided, and at the same time, it can be confirmed by watching one face whether the current machining face is a side surface or a hole.

[0038] With reference to Figure 2 And Figure 3 , the milling hole fixing part 5 includes a receiving table 51 detachably mounted on the mounting table 41 of the table body 4, a plurality of positioning plates 52 detachably mounted on the receiving table 51 and a plurality of pressing plates 53 fixedly arranged on the positioning plates 52, the receiving table 51 is used for placing the workpiece body 1, the positioning plates 52 are mounted on the receiving table 51, the number of the positioning plates 52 is one more than the number of the workpiece bodies 1 placed on the receiving table 51, each workpiece body 1 is abutted with the positioning plates 52 on both sides, the positioning plate 52 abutting one side of the workpiece body 1 is provided with an abutting groove 6 matched with the side wall of the workpiece body 1, the positioning plate 52 is arranged on the side of the workpiece body 1 away from the receiving table 51 and does not block the machining hole 2, the upper and lower surfaces of the workpiece are clamped by the receiving table 51 and the pressing plate 53, the area of the workpiece side surface with the connecting block 3 is avoided from being clamped, the probability of the workpiece being damaged when clamped is reduced, the positioning plates 52 are arranged on the side wall of the workpiece body 1 to position the workpiece body 1, and the pressing plate 53 is connected to the receiving table 51 through the positioning plate 52, so that the pressing plate 53 will not block the milling machining of the machining hole 2 by the milling machine; the positioning plates 52 are connected to each other through the connecting rod 10, the connecting rod 10 avoids the machining hole 2 of the workpiece body 1, connects the positioning plates 52 through the connecting rod 10, so that the synchronous disassembly of all the positioning plates 52 is facilitated; the receiving table 51 is provided with a positioning shaft 11 corresponding to the machining hole 2, the positioning shaft 11 is slidingly arranged on the receiving table 51, in the embodiment, the positioning shaft 11 is driven to slide by an electric push cylinder, the positioning shaft 11 extends out of or is stored in the receiving table 51 by sliding, the arrangement of the positioning shaft 11 can assist in fixing the workpiece body 1 before the workpiece is clamped and fixed, and can reduce the influence on the milling hole by sliding when the hole is milled, the positioning shaft 11 is a shaft body with air inflation function, which can fix the workpiece bodies 1 with size difference before the machining hole 2 is milled.

[0039] With reference to Figure 4 and Figure 5 , a dismounting assembly 7 is arranged between the positioning plate 52 and the receiving table 51, the dismounting assembly 7 comprises a plurality of dismounting insertion holes 71, a plurality of dismounting insertion blocks 72 and a plurality of reinforcing members 73, the dismounting insertion holes 71 are formed on the receiving table 51, the number of the dismounting insertion holes 71 is the same as that of the positioning plate 52 and the dismounting insertion holes 71 are distributed on both sides of the workpiece body 1, the dismounting insertion blocks 72 are a plurality of, the number of the dismounting insertion blocks 72 is the same as that of the positioning plate 52, the dismounting insertion holes 71 are fixedly arranged on the side of the positioning plate 52 facing the receiving table 51, the dismounting insertion blocks 72 are inserted into the dismounting insertion holes 71, the reinforcing members 73 are a plurality of, the reinforcing members 73 are arranged between the dismounting insertion holes 71 and the dismounting insertion blocks 72 respectively, and the reinforcing members 73 reinforce the dismounting insertion blocks 72 in the dismounting insertion holes 71; the reinforcing member 73 comprises a reinforcing rod 731, a reinforcing groove 732 and an elastic member 733, the reinforcing rod 731 is slidably inserted into the receiving table 51, the reinforcing groove 732 is formed on the dismounting insertion block 72, the reinforcing rod 731 is inserted into the reinforcing groove 732 by sliding, the elastic member 733 is sleeved and arranged on the reinforcing rod 731, the elastic member 733 is a spring in the embodiment, the elastic member 733 drives the reinforcing rod 731 to be inserted into the reinforcing groove 732 by elastic force, one end of the reinforcing rod 731 away from the reinforcing groove 732 extends out of the receiving table 51, when the dismounting insertion block 72 is inserted into the dismounting insertion hole 71, the reinforcing rod 731 is inserted into the reinforcing groove 732 under the action of the elastic force of the elastic member 733, so as to limit the dismounting insertion block 72 from being separated from the dismounting insertion hole 71, and the reinforcing rod 731 is separated from the reinforcing groove 732 by pulling, at this time, the dismounting insertion block 72 can be taken out from the dismounting insertion hole 71 to dismount the positioning plate 52; the receiving table 51 is slidably provided with a linkage rod 8, the linkage rod 8 is connected and fixed with all the reinforcing rods 731, all the reinforcing rods 731 can be synchronously driven to be separated from the reinforcing groove 732 by pulling the linkage rod 8, so as to facilitate the dismounting of the positioning plate 52 on the receiving table 51; a chamfer 9 is formed on the end of the dismounting insertion block 72 away from the positioning plate 52, when the dismounting insertion block 72 is inserted into the dismounting insertion hole 71, the chamfer 9 abuts against the reinforcing rod 731 to make the reinforcing rod 731 slide and separate from the dismounting insertion hole 71, so that the dismounting insertion block 72 can be normally arranged in the dismounting insertion hole 71, and when the dismounting insertion block 72 is completely inserted into the dismounting insertion hole 71, the reinforcing rod 731 is inserted into the reinforcing groove 732 by rebounding under the action of the elastic force.

[0040] The implementation principle of the embodiment of the application is that several batches of workpiece bodies 1 that have not been subjected to milling processing are first installed on the table body 4 through the hole milling fixing piece 5, the workpiece body 1 is positioned through the positioning shaft 11 when being installed, and then the workpiece is pressed and fixed on the receiving table 51 through the installation positioning plate 52, the table body 4 is installed in the milling machine for milling of the processing hole 2 after the workpiece body 1 is installed and fixed, the positioning shaft 11 is driven to slide and be accommodated in the receiving table 51 before the processing hole 2 is milled, after the processing hole 2 of two to three batches of workpiece bodies 1 is milled, the workpiece body 1 that has not been processed is installed on the hole milling fixing piece 5, and the workpiece body 1 that has been milled is installed on the air expansion shaft 12 and fixed on the table body 4 through the air expansion shaft 12, then the table body 4 is installed in the milling machine for hole milling and side surface milling, while the milling machine is performing hole milling and side surface milling, another batch of workpiece bodies 1 that have not been subjected to milling processing and the workpiece bodies 1 that have been subjected to hole milling are installed on another table body 4 outside the milling machine, the table body 4 is replaced after the workpiece on the table body 4 in the milling machine is processed, the workpiece on the other table body 4 is processed, and all the workpieces to be processed are milled until all the workpieces to be processed are milled.

[0041] It should be noted that the above embodiments are only used to illustrate the application and not to limit the technical solutions described in the application. Although the application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the skilled in the art can still modify or equivalently replace the application, and all technical solutions and improvements that do not deviate from the spirit and scope of the application should be covered in the scope of the claims of the application.

Claims

1. A stationary fixture comprising a table body (4), characterized in that: The milling hole fixing part (5) is arranged on the table body (4), and the milling hole fixing part (5) comprises a receiving table (51), a positioning plate (52) and a pressing plate (53), the receiving table (51) is installed on the table body (4), the receiving table (51) is used for placing the workpiece body (1), the positioning plate (52) has a plurality of blocks, the positioning plate (52) is installed on the receiving table (51), the positioning plate (52) abuts against the side wall of the workpiece body (1), the positioning plate (52) abuts against one side of the workpiece body (1) and is provided with an abutting groove (6) matched with the side wall of the workpiece body (1), and the pressing plate (53) is fixedly arranged on the side of the positioning plate (52) away from the receiving table (51), and the positioning plate (52) is arranged on the side of the workpiece body (1) away from the receiving table (51) and does not block the machining hole (2).

2. A fixture as claimed in claim 1, wherein: The dismounting assembly (7) is arranged between the positioning plate (52) and the receiving table (51), the dismounting assembly (7) comprises a dismounting jack (71), a dismounting plug (72) and a reinforcing part (73), the dismounting jack (71) is arranged on the receiving table (51), the number of the dismounting jacks (71) is the same as that of the positioning plates (52), the dismounting plug (72) has a plurality of blocks, the number of the dismounting plugs (72) is the same as that of the positioning plates (52), the dismounting jacks (71) are arranged on the side of the positioning plate (52) facing the receiving table (51), the dismounting plug (72) is inserted into the dismounting jack (71), and the reinforcing part (73) has a plurality of blocks, the reinforcing parts (73) are arranged between the dismounting jacks (71) and the dismounting plugs (72) respectively, and the reinforcing part (73) reinforces the dismounting plug (72) in the dismounting jack (71).

3. A fixture as claimed in claim 2, wherein: The reinforcing part (73) comprises a reinforcing rod (731), a reinforcing groove (732) and an elastic part (733), the reinforcing rod (731) is slidably inserted into the receiving table (51), the reinforcing groove (732) is arranged on the dismounting plug (72), the reinforcing rod (731) is inserted into the reinforcing groove (732) through sliding, the elastic part (733) is sleeved and arranged on the reinforcing rod (731), the elastic part (733) drives the reinforcing rod (731) to be inserted into the reinforcing groove (732) through elastic force, and one end of the reinforcing rod (731) away from the reinforcing groove (732) extends out of the receiving table (51).

4. A fixture as claimed in claim 3, wherein: The linkage rod (8) is slidably arranged on the receiving table (51) and is connected and fixed to all the reinforcing rods (731).

5. A fixture as claimed in claim 4, wherein: The dismounting plug (72) is provided with a chamfer (9) at one end away from the positioning plate (52).

6. A fixture as claimed in claim 5, wherein: The positioning plates (52) are connected to each other through the connecting rods (10), and the connecting rods (10) are arranged away from the machining hole (2) of the workpiece body (1).

7. A fixture as claimed in claim 6, wherein: The receiving table (51) is provided with a positioning shaft (11) corresponding to the machining hole (2), the positioning shaft (11) is slidably arranged on the receiving table (51), and the positioning shaft (11) extends out of or is accommodated in the receiving table (51) through sliding.

8. A fixture as claimed in claim 7, wherein: The table body (4) is provided with an air expansion shaft (12) corresponding to the machining hole (2) of the workpiece body (1).

9. A fixture as claimed in claim 8, wherein: The table body (4) comprises a mounting table (41) and a rotating table (42), the hole milling fixing member (5) and the air expansion shaft (12) are arranged on the mounting table (41), and the rotating table (42) is fixedly arranged at the end of the mounting table (41) and is rotatably arranged on the milling machine tool table.

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