Positioning device for model part machining

Abstract

The utility model discloses a positioning device for model part machining, which relates to the technical field of plastic part machining, and comprises a frame body, two groups of clamping components which are arranged up and down in a mirror symmetry manner are arranged in the frame body, a driving mechanism for driving the two groups of clamping components to be close to each other or far away from each other is arranged on the frame body, and each clamping component comprises a mounting frame. An air cylinder is installed on the inner wall of the installation frame, the output end of the air cylinder is fixedly connected with a fixing plate, the fixing plate is slidably connected to the inner wall of the installation frame, a plurality of through holes penetrating through the inner wall of the installation frame are formed in the upper portion of the fixing plate, clamping rods are slidably connected into the through holes, and the two sets of clamping rods are symmetrically arranged up and down. According to the positioning device for model part machining, the multiple clamping rods are arranged, the positions of the clamping rods can be adjusted according to the surface shape of a plastic part, and the clamping rods are fixed, so that the contact area of the clamping mechanism and the surface of the plastic part is increased, and the fixing stability and applicability of the positioning device for model part machining are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic part processing, in particular to a positioning device for model part machining. BACKGROUND

[0002] Plastic parts are the general term of life, industrial and other products processed by using plastic as the main raw material. Especially for some model products, which are mainly made of plastic; at present, in model part machining, many plastic parts, if the production requirement is small, usually do not use the mode of mold injection, the mold opening cost is higher, so the plastic block can be positioned by machining mode, and then milling processing is carried out to mill the required shape, but the plastic edges need to be processed.

[0003] Due to actual demand and design needs, the surface of general plastic parts is irregular, so that the ordinary positioning and clamping device cannot stably clamp the plastic parts, and the processing angle of the plastic parts cannot be adjusted during the clamping process, thereby reducing the practicability of the positioning device for model part machining. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a positioning device for model part machining to solve the low applicability of the positioning device for model part machining in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a positioning device for model part machining, comprising a frame body, two groups of clamping assemblies symmetrically arranged above and below are arranged in the frame body, and a driving mechanism for driving the two groups of clamping assemblies to approach or move away from each other is arranged on the frame body, the clamping assembly comprises a mounting bracket, a cylinder is installed on the inner wall of the mounting bracket, the output end of the cylinder is fixedly connected with a fixed plate, the fixed plate is slidingly connected to the inner wall of the mounting bracket, a plurality of through holes penetrating the inner wall of the mounting bracket are formed in the upper part of the fixed plate, a clamping rod is slidingly connected in the through hole, and the two groups of clamping rods are symmetrically arranged above and below.

[0006] Preferably, the driving mechanism comprises a first hydraulic cylinder mounted on the top of the frame body, the output end of the first hydraulic cylinder is rotatably connected with the upper part of the mounting bracket of the top layer, and the mounting bracket of the bottom layer is rotatably connected with the bottom wall inside the frame body.

[0007] Preferably, the both ends of the clamping rod are fixedly sleeved with a blocking ring, and a spring is slidingly sleeved outside the clamping rod, the spring is located outside the mounting bracket, and the spring is in contact with the corresponding blocking ring and mounting bracket side wall, and the outer diameter of the blocking ring is greater than the inner diameter of the through hole.

[0008] Preferably, the side wall inside the frame body is rotationally connected with a rotating disc, one side of the rotating disc is fixedly connected with two side plates, a threaded rod is rotationally connected between the two side plates, a mounting plate is threadedly sleeved on the outer side of the threaded rod, one side of the mounting plate is fixedly connected with a second hydraulic cylinder, a milling device is arranged at the output end of the second hydraulic cylinder, and the rotating disc is arranged perpendicular to the mounting frame.

[0009] Preferably, two first servo motors are mounted on the frame body, a second servo motor is mounted on one side of the rotating disc, the output ends of the two first servo motors are fixedly connected with the bottom of the bottommost mounting frame and the shaft center on one side of the rotating disc respectively, the output end of the second servo motor is fixedly connected with the end of the threaded rod, and the first servo motor and the second servo motor are electrically connected with a power supply.

[0010] Preferably, wire grooves are formed in the two sides of the fixed plate, wire rods are fixedly connected in the wire grooves, and the wire rods are fixedly connected to the inner wall of the mounting frame.

[0011] Preferably, a rotating ring is rotationally connected to the upper portion of the mounting frame on the top layer, stabilizing rods are fixedly connected to the rotating ring in a circumferential array, and a stabilizing groove is formed in the top wall inside the frame body and is in sliding connection with the stabilizing rods.

[0012] Compared with the prior art, the model piece machining positioning device has the following beneficial effects:

[0013] 1. The plurality of clamping rods can be adjusted in position and fixed according to the surface shape of the plastic part, thereby increasing the contact area of the clamping mechanism on the surface of the plastic part, and effectively improving the stability and applicability of the model piece machining positioning device.

[0014] 2. The two groups of clamping assemblies can be rotated to adjust the processing angle of the plastic part, the device is simple to operate and convenient to use, and therefore the practicality of the model piece machining positioning device is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic view of the model piece machining positioning device of the utility model;

[0016] Figure 2 It is a three-dimensional schematic view of the rotating disc of the model piece machining positioning device of the utility model;

[0017] Figure 3 It is a three-dimensional schematic view of the clamping assembly of the model piece machining positioning device of the utility model;

[0018] Figure 4The utility model discloses a positioning device's mounting frame and fixed plate of model piece machining is the expanded stereogram schematic drawing.

[0019] The figure mark: 1, frame body, 2, clamping assembly, 201, mounting frame, 202, pneumatic cylinder, 203, fixed plate, 204, clamping rod, 3, first hydraulic cylinder, 4, first servo motor, 5, blocking ring, 6, milling device, 7, carousel, 8, threaded rod, 9, mounting plate, 10, second hydraulic cylinder, 11, second servo motor, 12, wire slot, 13, wire rod, 14, stabilizer bar. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] Embodiment: as Figure 1 Figure 4 The utility model provides a positioning device's technical scheme for model piece machining, including frame body 1, be provided with two groups of clamping assembly 2 that are set up symmetrically up and down in frame body 1, and be provided with the drive mechanism that drives two groups of clamping assembly 2 to be close to each other or be far away on frame body 1, and clamping assembly 2 includes mounting frame 201, is installed with pneumatic cylinder 202 on the inner wall of mounting frame 201, and the output end of pneumatic cylinder 202 is fixedly connected with fixed plate 203, and fixed plate 203 is connected in sliding mode on the inner wall of mounting frame 201, and a plurality of through holes that pass through the inner wall of mounting frame 201 are seted up on the upper portion of fixed plate 203, and clamping rod 204 is connected in sliding mode in the through hole, and two groups of clamping rod 204 are set up symmetrically up and down;

[0022] Through two groups of clamping assembly 2 up and down cooperation clamping plastic piece, to complete the positioning fixed of plastic piece;

[0023] Wherein, need to put plastic piece in advance on clamping assembly 2, to adjust the position of each clamping rod 204 according to the surface shape of plastic piece, then utilize pneumatic cylinder 202 to drive fixed plate 203 to slide on mounting frame 201, so utilize the through hole on mounting frame 201 and the through hole on fixed plate 203 and fixedly hold clamping rod 204 in the way of staggered.

[0024] As Figure 1 , Figure 3 and Figure 4 ​As shown, the driving mechanism comprises a first hydraulic cylinder 3 mounted on the top of the frame body 1, the output end of the first hydraulic cylinder 3 is rotatably connected to the upper part of the mounting frame 201 of the top layer, and the mounting frame 201 of the bottom layer is rotatably connected to the bottom wall inside the frame body 1;

[0025] The mounting frame 201 of the top layer is driven by the first hydraulic cylinder 3 to rise and fall, so as to cooperate with the mounting frame 201 of the bottom layer to clamp the plastic part.

[0026] As shown in Figure 3 , the two ends of the clamping rod 204 are fixedly sleeved with a blocking ring 5, and a spring is slidably sleeved outside the clamping rod 204, the spring is located outside the mounting frame 201, and the spring is in contact with the corresponding blocking ring 5 and the side wall of the mounting frame 201, the outer diameter of the blocking ring 5 is greater than the inner diameter of the through hole;

[0027] Through the elastic force of the spring, the clamping rod 204 can be automatically reset.

[0028] As shown in Figure 1 and Figure 2 , the side wall inside the frame body 1 is rotatably connected with a turntable 7, one side of the turntable 7 is fixedly connected with two side plates, the two side plates are rotatably connected with a threaded rod 8, the outer side of the threaded rod 8 is threadedly sleeved with a mounting plate 9, one side of the mounting plate 9 is fixedly connected with a second hydraulic cylinder 10, the output end of the second hydraulic cylinder 10 is provided with a milling device 6, and the turntable 7 and the mounting frame 201 are perpendicular to each other;

[0029] The milling device 6 is driven by the second hydraulic cylinder 10 to approach the plastic part, and the edge of the plastic part is worked, the end of the milling device 6 is provided with a milling head for processing the plastic part, since the milling device 6 is a prior art device, therefore its structure and use mode will not be described in detail;

[0030] By rotating the threaded rod 8, the milling device 6 moves axially towards the threaded rod 8, by rotating the turntable 7, the processing position of the milling device 6 is adjusted, the turntable 7 and the threaded rod 8 are used in cooperation, the horizontal and vertical processing positions of the milling device 6 can be adjusted.

[0031] As shown in Figure 1 and Figure 2 , two first servo motors 4 are mounted on the frame body 1, a second servo motor 11 is mounted on one side of the turntable 7, the output ends of the two first servo motors 4 are fixedly connected with the bottom of the mounting frame 201 of the bottom layer and the shaft center on one side of the turntable 7 respectively, the output end of the second servo motor 11 is fixedly connected with the end of the threaded rod 8, and the first servo motor 4 and the second servo motor 11 are electrically connected with the power supply;

[0032] The two first servo motors 4 are used to drive the mounting frame 201 to rotate or the turntable 7 to rotate respectively, and the second servo motor 11 can be used to drive the threaded rod 8 to rotate.

[0033] As shown in Figure 3 and Figure 4 Two sides of the fixed plate 203 are provided with wire grooves 12, and wire rods 13 are fixedly connected in the wire grooves 12, and the wire rods 13 are fixedly connected to the inner wall of the mounting frame 201.

[0034] The cooperation of the wire rods 13 and the wire grooves 12 can limit the movement range of the fixed plate 203, so that the fixed plate 203 can only slide close to the inner wall of the mounting frame 201.

[0035] As shown in Figure 1 and Figure 3 The mounting frame 201 at the top is provided with a rotating ring at the upper portion, the rotating ring is fixedly connected with circumferentially arranged stabilizing rods 14, and the inner top wall of the frame body 1 is provided with stabilizing grooves in sliding connection with the stabilizing rods 14.

[0036] The cooperation of the stabilizing rods 14 and the stabilizing grooves can improve the stability of the lifting movement of the mounting frame 201.

[0037] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A positioning device for machining a model piece, comprising a frame (1), characterized in that: The frame body (1) is provided with two groups of clamping assemblies (2) which are symmetrically arranged above and below, and the frame body (1) is provided with a driving mechanism for driving the two groups of clamping assemblies (2) to move close to or away from each other, the clamping assembly (2) comprises a mounting frame (201), a gas cylinder (202) is mounted on the inner wall of the mounting frame (201), a fixed plate (203) is fixedly connected to the output end of the gas cylinder (202), the fixed plate (203) is slidably connected to the inner wall of the mounting frame (201), a plurality of through holes are formed in the upper portion of the fixed plate (203) and extend through the inner wall of the mounting frame (201), and a clamping rod (204) is slidably connected in the through hole.

2. A positioning device for machining a model part according to claim 1, characterized in that: The driving mechanism comprises a first hydraulic cylinder (3) mounted on the top of the frame body (1), the output end of the first hydraulic cylinder (3) is rotatably connected to the upper portion of the mounting frame (201) of the top layer, and the mounting frame (201) of the bottom layer is rotatably connected to the bottom wall in the frame body (1).

3. A positioning device for machining a model part according to claim 2, characterized in that: The both ends of the clamping rod (204) are fixedly provided with a blocking ring (5), and a spring is slidably arranged outside the clamping rod (204), the spring is arranged outside the mounting frame (201), and the spring is in contact with the corresponding blocking ring (5) and the side wall of the mounting frame (201).

4. The positioning device for machining of a model part according to claim 1, characterized in that: A rotating disc (7) is rotatably connected to the side wall in the frame body (1), one side of the rotating disc (7) is fixedly connected with two side plates, a threaded rod (8) is rotatably connected between the two side plates, a mounting plate (9) is threadedly arranged outside the threaded rod (8), a second hydraulic cylinder (10) is fixedly connected to one side of the mounting plate (9), and a milling device (6) is arranged at the output end of the second hydraulic cylinder (10).

5. A positioning device for machining a model part according to claim 4, characterized in that: Two first servo motors (4) are mounted on the frame body (1), a second servo motor (11) is mounted on one side of the rotating disc (7), the output ends of the two first servo motors (4) are fixedly connected to the bottom of the mounting frame (201) of the bottom layer and the shaft of one side of the rotating disc (7), and the output end of the second servo motor (11) is fixedly connected to the end of the threaded rod (8).

6. The positioning device for machining of a model part according to claim 1, characterized in that: Wire rods (13) are fixedly connected in the wire grooves (12) on the both sides of the fixed plate (203), and the wire rods (13) are fixedly connected to the inner wall of the mounting frame (201).

7. The positioning device for machining of a model part according to claim 1, characterized in that: A plurality of stabilizing rods (14) are fixedly connected to the mounting frame (201) of the top layer, a rotating ring is rotatably connected to the upper portion of the mounting frame (201) of the top layer, the rotating ring is fixedly connected with the circumferentially arranged stabilizing rods (14), and a stabilizing groove is formed in the top wall in the frame body (1) and slidably connected with the stabilizing rods (14).

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