Fixture suitable for machining nozzle heads of multiple specifications

Abstract

The utility model relates to the field of hot runner nozzle machining, and discloses a clamp suitable for machining nozzle heads of multiple specifications, which comprises a clamp body, a tray and a fixing component capable of fixing the clamp body on the tray, and a plurality of placing stations used for installing the nozzle heads are arranged on the clamp body. The placing station comprises a placing hole formed in the top of the clamp body, and positioning holes are formed in the peripheral side of the placing hole; the multiple placing stations can be used for installing nozzle heads of different specifications, and the clamp body can be independently used on a surface grinding machine and can also be used on a numerical control machining center machine tool after being connected with a tray through the fixing assembly. When nozzle heads of different specifications are machined through the clamp, only the nozzle heads need to be installed on the corresponding placing stations, and the clamp body does not need to be moved; furthermore, by reducing the moving frequency of the clamp, the product machining precision is guaranteed, repeated positioning is avoided, operation is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of hot runner nozzle processing, in particular to a clamp suitable for processing nozzle heads of multiple specifications. Background Art

[0002] The hot runner nozzle is also called the hot nozzle. It is an important component of the hot runner system in a multi-cavity mold. It can deliver the plastic melt in the hot runner manifold to the product or runner surface through itself, and maintain the melting temperature so that the plastic does not decompose, to ensure that the valve needle can operate smoothly when opening and closing in the hot nozzle. The nozzle head is usually processed by CNC machining center machine tools and surface grinders.

[0003] In the process of nozzle head processing, it is often necessary to use a fixture to clamp it. Based on hot runners with different structures, the nozzle heads also have various specifications. However, the existing fixtures are only suitable for nozzle heads of specific specifications. When processing nozzle heads of different specifications, they need to be replaced with corresponding fixtures. This is not only cumbersome to operate, but also requires the fixture to be repositioned after each replacement, which greatly affects the processing efficiency of the nozzle head. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a fixture suitable for processing nozzle heads of multiple specifications. The multiple placement stations on the fixture body are used to install nozzle heads of different specifications. The fixture body can not only be used alone on a surface grinder, but also the fixture body and the tray can be connected together through a fixing component and used together on a CNC machining center machine tool; and when processing nozzle heads of different specifications, it is only necessary to install the nozzle heads at the corresponding placement stations without moving the position of the fixture body, thereby achieving the purpose of simplifying operation and improving production efficiency.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a fixture suitable for processing nozzle heads of multiple specifications, including a fixture body, a tray and a fixing component that can fix the fixture body on the tray, the fixture body is provided with a plurality of placement stations for installing the nozzle heads, the placement station includes a placement hole opened on the top of the fixture body, a positioning hole is opened on the surrounding side of the placement hole, and one end of the nozzle head is embedded in the placement hole, and the other end is connected to the fixture body by a locking screw that can be embedded in the positioning hole.

[0006] Optionally, a positioning groove is formed at the lower portion of the clamp body, and the fixing assembly includes a pressing plate, one end of the pressing plate is connected to the tray, and the other end of the pressing plate is against the positioning groove.

[0007] Optionally, the fixing assembly also includes a positioning screw and a supporting screw passed through the pressure plate, a slot hole is opened on the pressure plate, a supporting hole is opened on one side of the slot hole, and the supporting screw passes through the supporting hole from bottom to top, and the positioning screw passes through the slot hole from top to bottom and is connected to the tray.

[0008] Optionally, a plurality of mounting holes are provided on the tray, and one end of the positioning screw can be screwed and embedded in the mounting hole.

[0009] Optionally, the plurality of mounting holes are distributed in a rectangular array on the tray.

[0010] Optionally, two positioning grooves are provided, and the two positioning grooves are oppositely opened on two sides of the clamp body, and both sides of the clamp body are connected to the tray through the fixing assembly.

[0011] Optionally, four fixing components are provided, and the four fixing components are grouped in pairs and symmetrically distributed on both sides of the clamp body.

[0012] Optionally, both the top surface and the bottom surface of the clamp body are planar structures, and the bottom surface of the clamp body is in contact with the top surface of the tray.

[0013] Beneficial Effects

[0014] (1) The multiple placement stations in the utility model can be used to install nozzle heads of different specifications, and the fixture body can not only be used on a single surface grinder, but also can be used on a CNC machining center machine tool after connecting the pallet through a fixing component; when processing nozzle heads of different specifications by using the fixture, it is only necessary to install the nozzle head on the corresponding placement station without moving the fixture body; thereby, by reducing the frequency of fixture movement, the accuracy of product processing is guaranteed, repeated positioning is avoided, the operation process is simplified, and production efficiency is improved.

[0015] (2) One end of the middle pressure plate of the utility model is connected to the pallet, and the other end is abutted against the positioning groove to achieve the fixed installation of the clamp body on the pallet. Not only is the structure simple, but also the disassembly and assembly are convenient, and the connection and separation of the clamp body and the pallet can be quickly achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a side view structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 4It is a structural schematic diagram of the clamp body of the utility model;

[0020] Figure 5 It is a schematic diagram of the internal structure of the fixture body of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the fixing assembly of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the pressing plate of the utility model;

[0023] Among them, 1. fixture body; 2. placement station; 21. placement hole; 22. positioning hole; 3. positioning groove; 4. tray; 5. installation hole; 6. fixing component; 61. pressure plate; 62. slot hole; 63. support hole; 64. positioning screw; 65. support screw. DETAILED DESCRIPTION

[0024] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0025] Embodiment 1

[0026] like Figure 1-Figure 5 As shown, a fixture suitable for processing nozzle heads of various specifications includes a fixture body 1, a tray 4 and a fixing assembly 6. The tray 4 is used to support the fixture body 1, the fixing assembly 6 is used to fix the fixture body 1 on the tray 4, and the fixture body 1 is provided with a plurality of placement stations 2 for installing nozzle heads.

[0027] The top and bottom surfaces of the fixture body 1 are both planar structures, and the bottom surface of the fixture body 1 is in contact with the top surface of the tray 4; when used on a surface grinder, the fixture body 1 can be adsorbed and fixed on the working magnetic table of the surface grinder, and then the nozzle head can be installed on the placement station 2, and then the grinding process can be carried out; when used on a machining center machine tool, the fixture body 1 and the tray 4 are connected through the fixing component 6, and then the tray 4 is installed on the workbench of the machining center machine tool, and then the nozzle head is loaded into the placement station 2 for corresponding processing.

[0028] The placement station 2 on the fixture body 1 is used to install nozzle heads of different specifications, that is, each placement station 2 corresponds to a nozzle head of one specification; when processing nozzle heads of different specifications through the fixture, it is only necessary to install the nozzle head on the corresponding placement station 2 without moving the fixture body 1; and then by reducing the frequency of fixture movement, the accuracy of product processing is guaranteed, repeated positioning is avoided, the operation process is simplified, and production efficiency is improved.

[0029] As mentioned above, the placement station 2 includes a placement hole 21 opened on the top of the fixture body 1, a positioning hole 22 is opened on the surrounding side of the placement hole 21, and one end of the nozzle head is embedded in the placement hole 21, and the other end is connected to the fixture body 1 through a locking screw that can be embedded in the positioning hole 22.

[0030] The shape and size of the placement hole 21 match the corresponding nozzle head, and the positioning holes 22 are distributed around the placement hole 21, which are used to cooperate with the locking screw to realize the locking positioning of the nozzle head; that is, after one end of the nozzle head is embedded in the placement hole 21, the locking screw can be used to pass through the other end of the nozzle head and screw it into the positioning hole 22 to complete the fixed installation of the nozzle head on the fixture body 1.

[0031] like Figure 1-Figure 2 , Figure 6-Figure 7 As shown, a positioning groove 3 is provided at the lower part of the clamp body 1, and the fixing assembly 6 includes a pressing plate 61, a positioning screw 64 and a supporting screw 65 which are passed through the pressing plate 61; and one end of the pressing plate 61 is connected to the tray 4, and the other end abuts against the positioning groove 3. The pressing plate 61 abuts against the inner side of the positioning groove 3, which can limit the freedom of the clamp body 1 on the tray 4, thereby achieving positioning.

[0032] Among them, a slot hole 62 is opened on the pressure plate 61, and a support hole 63 is opened on one side of the slot hole 62; the support screw 65 passes through the support hole 63 from bottom to top, and the positioning screw 64 passes through the slot hole 62 from top to bottom and is connected to the tray 4; and a plurality of mounting holes 5 are opened on the tray 4, and one end of the positioning screw 64 can be screwed into and embedded in the mounting hole 5.

[0033] Specifically, one end of the support screw 65 passes through the support hole 63 from bottom to top, and is screwed to the support hole 63, and the other end of the support screw 65 rests on the top surface of the tray 4, which is used to support the pressure plate 61 and ensure that the pressure plate 61 and the top surface of the tray 4 are parallel to each other; one end of the positioning screw 64 can pass through the slot 62 and be screwed into the mounting hole 5 on the tray 4. Under the supporting action of the support screw 65, as the positioning screw 64 is screwed in, one end of the pressure plate 61 can be firmly pressed against the positioning groove 3.

[0034] In addition, multiple mounting holes 5 are distributed in a rectangular array on the tray 4, and both ends of the positioning groove 3 pass through the side of the clamp body 1, and the positioning screw 64 can also move along the length direction of the slot 62; based on this structure, the user can conveniently adjust the position of the pressure plate 61 relative to the clamp body 1 as needed, so that the pressure plate 61 can be abutted against the positioning groove 3 while the positioning screw 64 can be screwed together with the mounting hole 5, which greatly improves the stability of the fixing component 6.

[0035] Working principle:

[0036] When used on a surface grinder, the fixture body 1 can be adsorbed and fixed on the working magnetic table of the surface grinder, and then the nozzle head can be installed on the placement station 2, so that one end of the nozzle head is embedded in the placement hole 21, and the locking screw is passed through the screw hole on the nozzle head and then screwed and embedded in the positioning hole 22 to achieve locking, and then the grinding process is performed;

[0037] When used on a machining center, the fixture body 1 and the pallet 4 are first connected through the fixing assembly 6, and then the pallet 4 is installed on the workbench of the machining center. The nozzle head is then placed in the placement station 2 for corresponding processing.

[0038] Among them, when connecting the clamp body 1 and the tray 4 through the fixing component 6, first, one end of the support screw 65 is passed through the support hole 63 from bottom to top, and then one end of the pressure plate 61 is embedded in the positioning groove 3, and the distance through which the support screw 65 passes is adjusted to ensure that the pressure plate 61 is parallel to the top surface of the tray 4; then, one end of the positioning screw 64 is passed through the slot 62, and the position of the positioning screw 64 is adjusted to make it vertically aligned with the mounting hole 5 on the tray 4. Under the support of the support screw 65, as the positioning screw 64 is screwed into the mounting hole 5, one end of the pressure plate 61 can be firmly pressed against the positioning groove 3 to complete the connection between the clamp body 1 and the tray 4.

[0039] Embodiment 2

[0040] On the basis of embodiment one, two positioning grooves 3 are provided, and the two positioning grooves 3 are relatively opened on both sides of the clamp body 1, and both sides of the clamp body 1 are connected to the tray 4 through the fixing component 6, and there are four fixing components 6, and the four fixing components 6 are grouped in pairs and symmetrically distributed on both sides of the clamp body 1.

[0041] As mentioned above, both sides of the clamp body 1 are connected to the pallet 4 through the fixing components 6, two fixing components 6 are overlapped on each positioning groove 3, and the two positioning grooves 3 and four fixing components 6 adopt a symmetrical structure, which can ensure the force balance of the clamp body 1 on the pallet 4 to avoid the clamp body 1 tilting to one side during operation.

[0042] Embodiment 3

[0043] On the basis of Embodiment 1 and Embodiment 2, each placement station 2 can be equipped with a nozzle head of a certain specification; for example, some placement stations 2 include a placement hole 21, and four positioning holes 22 are provided around the placement hole 21; some placement stations 2 include two placement holes 21, and the upper parts of the two placement holes 21 are connected by a countersunk hole; and the screw holes reserved on the nozzle head correspond to the number and position of the positioning holes 22. After the parts are installed into the fixture body 1, they are locked by screws. Since the nozzle head parts are installed upside down or in the wrong position, the screw holes on the nozzle head parts will not match the positioning holes 22 on the fixture and cannot be locked, or they will be installed in the wrong position and cannot be installed, so the fixture will not be installed in the wrong direction or in the wrong position.

[0044] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0046] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A fixture suitable for processing nozzle heads of multiple specifications, characterized by: The invention comprises a fixture body (1), a tray (4) and a fixing assembly (6) capable of fixing the fixture body (1) on the tray (4); the fixture body (1) is provided with a plurality of placement stations (2) for installing nozzle heads; the placement stations (2) comprise a placement hole (21) formed at the top of the fixture body (1); a positioning hole (22) is formed around the placement hole (21); one end of the nozzle head is embedded in the placement hole (21); and the other end is connected to the fixture body (1) via a locking screw capable of being embedded in the positioning hole (22).

2. The fixture suitable for processing nozzle heads of multiple specifications according to claim 1 is characterized in that: A positioning groove (3) is provided at the lower part of the clamp body (1); the fixing assembly (6) comprises a pressing plate (61); one end of the pressing plate (61) is connected to the tray (4) and the other end abuts against the positioning groove (3).

3. The fixture suitable for processing nozzle heads of multiple specifications according to claim 2 is characterized in that: The fixing assembly (6) further comprises a positioning screw (64) and a supporting screw (65) which are passed through the pressure plate (61); a slot hole (62) is provided on the pressure plate (61); a supporting hole (63) is provided on one side of the slot hole (62); the supporting screw (65) passes through the supporting hole (63) from bottom to top; and the positioning screw (64) passes through the slot hole (62) from top to bottom to be connected to the tray (4).

4. The fixture suitable for processing nozzle heads of multiple specifications according to claim 3 is characterized in that: The tray (4) is provided with a plurality of mounting holes (5), and one end of the positioning screw (64) can be screwed and embedded in the mounting hole (5).

5. The fixture suitable for processing nozzle heads of multiple specifications according to claim 4 is characterized in that: The plurality of mounting holes (5) are distributed on the tray (4) in a rectangular array.

6. The fixture suitable for processing nozzle heads of multiple specifications according to claim 5 is characterized in that: Two positioning grooves (3) are provided, and the two positioning grooves (3) are arranged on two sides of the clamp body (1) opposite to each other, and both sides of the clamp body (1) are connected to the tray (4) via the fixing assembly (6).

7. The fixture for processing nozzle heads of multiple specifications according to claim 6 is characterized in that: Four fixing components (6) are provided, and the four fixing components (6) are arranged in groups of two and are symmetrically distributed on both sides of the clamp body (1).

8. The fixture suitable for processing nozzle heads of multiple specifications according to claim 1 is characterized in that: The top surface and the bottom surface of the clamp body (1) both adopt a planar structure, and the bottom surface of the clamp body (1) fits the top surface of the tray (4).

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