Case frame positioning jig and CNC machining equipment

Abstract

The utility model relates to the technical field of positioning jigs, in particular to a case frame positioning jig and CNC machining equipment. The case frame positioning jig comprises a base, a positioning frame and a plurality of sets of pressing mechanisms, and the positioning frame is arranged on the base; the pressing mechanism is arranged on the inner side of the positioning frame; the pressing mechanism comprises a first driving source, a connecting rod and a pressing rod, the first driving source is arranged in the positioning frame, the first end of the connecting rod is hinged to a shell of the first driving source, the second end of the connecting rod is hinged to the pressing rod, and the first end of the pressing rod is hinged to the output end of the first driving source; a plurality of sensors are arranged at the side part of the positioning frame; a spring column is arranged at the top of the positioning frame; the case frame is sleeved on the positioning frame, the pressing rod presses the case frame, and the case frame presses the sensor and the spring column. The sensor is used for judging whether the product is accurately in place in the positioning frame or not, and the spring column jacks the product to a certain height, so that workers can conveniently take out the product. And the first driving source drives the pressing rod to press the product on the positioning frame.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning jigs, in particular to a positioning jig for a chassis frame and a CNC processing device. Background Technique

[0002] Cabinets are often seen in computer rooms, and there are metal cabinets and plastic cabinets on the market. Plastic cabinets are usually assembled by a frame (bottom frame and top frame), cross columns, and vertical columns, and then form a cabinet. After the frame is injection molded, it usually needs to be sent to a CNC device for drilling, grinding and other steps, and a positioning jig is used to firmly position the frame during processing. During processing, the product is placed in a groove or positioning seat, and then taken out after processing. When the product is pressed tightly in the groove or positioning seat to complete processing, it is difficult to take out the product from the groove or positioning seat, which affects the processing efficiency. In addition, some positioning jigs cannot detect whether the product is in place. If the product is directly pressed and fixed, the product may be damaged.

[0003] For example, a processing positioning jig for a rubber frame disclosed in Chinese Patent Application No.: CN202022220730.6, a processing positioning jig for a rubber frame, includes a workbench, a fixing plate is arranged on the top end surface of the workbench, a support column is arranged on the fixing plate, a positioning plate is arranged at the top end of the support column, a placement groove for placing the rubber frame is arranged on the top end surface of the positioning plate, the cross-sectional shape of the placement groove is U-shaped, limiting blocks are arranged at the middle positions of both ends of the positioning plate, and the limiting blocks are detachably connected to the positioning plate. A plurality of rotary cylinders are arranged on both sides of the fixing plate along its length direction, a pressing plate is arranged at the top end of the telescopic rod of each rotary cylinder, and through holes are arranged at the positions corresponding to the residual waste points of the rubber frame on the pressing plate. There are the following problems: 1. After the rubber frame is placed in the placement groove, it is difficult for workers to take it out, which affects the processing efficiency. 2. It is impossible to monitor whether the rubber frame is in place. At this time, if the rotary cylinder directly presses on the product, the product may be damaged. Summary of the Utility Model

[0004] In view of this, in view of the deficiencies of the existing technology, the main purpose of the present utility model is to provide a positioning jig for a chassis frame, which not only facilitates taking out the product from the positioning frame, but also detects the placement situation of the product to avoid crushing the product, thereby overcoming the deficiencies of the existing technology.

[0005] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0006] The present application provides a positioning jig for a chassis frame, including a base, a positioning frame, and a plurality of groups of pressing mechanisms. The positioning frame is arranged on the base; the pressing mechanisms are arranged inside the positioning frame;

[0007] The pressing mechanism includes a first driving source, a connecting rod, and a pressing rod. The first driving source is arranged inside the positioning frame. The first end of the connecting rod is hinged to the housing of the first driving source, the second end of the connecting rod is hinged to the pressing rod, and the first end of the pressing rod is hinged to the output end of the first driving source. A plurality of sensors are arranged on the side of the positioning frame, and a spring post is arranged on the top of the positioning frame. The chassis frame is sleeved on the positioning frame, the pressing rod presses the chassis frame, and the chassis frame presses the sensors and the spring post.

[0008] Preferably, the inner side of the top of the positioning frame has a first supporting flange, and the side of the positioning frame has a second supporting flange. The first supporting flange supports the top of the chassis frame, and the second supporting flange supports the bottom of the chassis frame.

[0009] Preferably, a first flexible pad is arranged on the top of the positioning frame.

[0010] Preferably, a second flexible pad is arranged on the pressing rod, and the second flexible pad can press on the chassis frame.

[0011] Preferably, at least one set of the pressing mechanisms is arranged on each side of the positioning frame.

[0012] Preferably, the base is provided with an installation groove, and the pressing mechanism is arranged in the installation groove. A third installation hole for installing the first driving source and a fourth installation hole for installing the base penetrate through the bottom wall of the installation groove.

[0013] Preferably, a plurality of avoidance openings are arranged on the outer wall of the positioning frame.

[0014] Preferably, the sensor is a pressure sensor, and the elongation of the spring post is less than the height of the chassis frame.

[0015] A CNC machining device of the present application includes the above-mentioned chassis frame positioning fixture and a lathe.

[0016] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, a plurality of sensors are arranged on the side of the positioning frame, and a spring post is arranged on the top of the positioning frame. When the contemporary processed product is completely in place in the positioning frame, the sensor will be triggered, and then it can be judged that the product has been accurately in place. The first driving source acts, and the pressing rod presses the product tightly in the positioning frame. After the processing is completed, the first driving source drives the pressing rod to release the product, and the elastic force of the spring post will lift the product by a certain distance, which is convenient for workers to take out the product and is beneficial to improving the processing efficiency.

[0017] At the same time, the pressing rod presses the product in an up-and-down swinging manner, which has fewer action steps and higher pressing efficiency. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the working state of an embodiment of the present utility model.

[0019] Figure 2 It is a schematic diagram of the disassembled state of an embodiment of the present utility model.

[0020] Figure 3 It is a schematic cross-sectional view of an embodiment of the present utility model.

[0021] Figure 4 It is a schematic diagram of the product of an embodiment of the present utility model.

[0022] Explanation of the drawing reference numerals:

[0023] 10. Base; 11. Positioning frame; 12. First support flange; 13. Second support flange; 14. First flexible pad; 15. Spring post; 16. Sensor; 17. Chassis frame; 18. Installation groove; 19. Fourth installation hole; 20. Pressing mechanism; 21. First driving source; 22. Link rod; 23. Pressing rod; 24. Second flexible pad; 30. Product. Specific embodiments

[0024] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following combines the drawings and preferred embodiments to detail the specific embodiments, structures, features and their effects of the present utility model as follows.

[0025] Please refer to Figures 1 to 4 As shown, it shows the specific structure of a preferred embodiment of the present utility model, which is a positioning fixture for a chassis frame.

[0026] Among them, the sensor 16 detects the state of the product 30 in the positioning frame 11. When the first driving source 21 operates, the pressing rod 23 presses the product 30 against the positioning frame 11. After processing is completed, the first driving source 21 drives the pressing rod 23 to release the product 30, and the spring post 15 jacks up the product 30 by a certain height, which facilitates the worker to take out the product 30 and is beneficial to improving the processing efficiency.

[0027] The present application provides a positioning jig for a chassis frame, which includes a base 10, a positioning frame 11, and several groups of pressing mechanisms 20. The positioning frame 11 is arranged on the base 10; the pressing mechanisms 20 are arranged inside the positioning frame 11; the pressing mechanism 20 includes a first driving source 21, a connecting rod 22, and a pressing rod 23. The first driving source 21 is arranged inside the positioning frame 11. The first end of the connecting rod 22 is hinged to the outer shell of the first driving source 21, the second end of the connecting rod 22 is hinged to the pressing rod 23, and the first end of the pressing rod 23 is hinged to the output end of the first driving source 21; several sensors 16 are arranged on the side of the positioning frame 11, and a spring column 15 is arranged on the top of the positioning frame 11; the chassis frame 17 is sleeved on the positioning frame 11, the pressing rod 23 presses the chassis frame 17, and the chassis frame 17 presses the sensors 16 and the spring column 15. The positioning jig for the chassis frame can be used in CNC machining equipment, and the positioning jig for the chassis frame is arranged on a lathe. A CNC machine tool consists of five major parts: information input, a numerical control device, a servo drive and detection device, a machine tool body, and an electromechanical interface. The shape of the positioning frame 11 is adapted to the shape of the chassis frame 17, and the chassis frame 17 can be embedded in the positioning frame 11. The sensor 16 is connected to the detection device, and the information detected by the sensor 16 is transmitted to the CNC machining equipment, and the CNC machining equipment controls the operation of the first driving source 21. During operation, the worker sleeved the chassis frame 17 on it. When all the sensors 16 are triggered, it is considered that the chassis frame 17 has been accurately positioned, and the first driving source 21 can drive the pressing rod 23 to swing downward to press the product 30 against the positioning frame 11. After the machining is completed, the first driving source 21 drives the pressing rod 23 to swing upward to release the product 30, and the spring column 15 will lift the chassis frame 17 to a certain height, which can facilitate the worker to take out the product 30, improve the blanking efficiency, and can improve the machining efficiency. The positioning frame 11 is provided with a first mounting hole, and a spring and a top column are arranged in the first mounting hole. The positioning frame 11 is provided with a second mounting hole, and the sensor 16 is arranged in the second mounting hole. When the product 30 is completely positioned in the positioning frame 11, the sensor 16 is triggered by the inner wall of the product 30, and then it is judged that the product 30 has been positioned, and the first driving source 21 can operate. The first driving source 21 is preferably a cylinder. The housing of the first driving source 21, the connecting rod 22, the pressing rod 23, and the output end of the first driving source 21 form a quadrilateral structure. Therefore, the first driving source 21 can drive the pressing rod 23 to swing up and down. That is, the pressing mechanism 20 is a lever cylinder structure, which has a simple operation, higher working efficiency, and lower failure rate.

[0028] Preferably, the inner side of the top of the positioning frame 11 has a first support flange 12, and the side of the positioning frame 11 has a second support flange 13. The first support flange 12 supports the top of the chassis frame 17, and the second support flange supports the bottom of the chassis frame 17. When the product 30 is sleeved on the positioning frame 11, the first support flange 12 is embedded in the product 30, and the second support flange 13 supports the bottom of the product 30, so that the product 30 can be positioned in the rectangular positioning frame 11.

[0029] Preferably, a first flexible pad 14 is provided on the top of the positioning frame 11. A second flexible pad 24 is provided on the pressing rod 23, and the second flexible pad 24 can press on the chassis frame 17. The first flexible pad 14 and the second flexible pad 24 are plastic pads or rubber pads. The first flexible pad 14 and the second flexible pad 24 can prevent the product 30 from being bruised and scratched, and at the same time enable the product 30 to be more firmly embedded in the positioning frame 11.

[0030] Preferably, at least one set of the pressing mechanisms 20 is provided on each side of the positioning frame 11. In this embodiment, there is one set of the pressing mechanisms 20 on the short side of the positioning frame 11, and two sets of the pressing mechanisms 20 on the long side of the positioning frame 11. Under the combined action of multiple sets of the pressing mechanisms 20, the product 30 can be firmly embedded in the positioning frame 11.

[0031] Preferably, the base 10 is provided with an installation groove 18, and the pressing mechanism 20 is arranged in the installation groove 18; a third installation hole for installing the first driving source 21 and a fourth installation hole 19 for installing the base 10 penetrate through the bottom wall of the installation groove 18. The first driving source 21 in this embodiment is a cylinder. The pressing mechanism 20 is arranged in the installation groove 18, which is convenient for CNC equipment to perform operations such as drilling, polishing, and grinding on the product 30 outside. There are four fourth installation holes 19, which are arranged at the center position of the installation groove 18. Screws are inserted into the third installation hole and the fourth installation hole 19 to complete the assembly of the corresponding accessories.

[0032] Preferably, a plurality of avoidance openings are provided on the outer wall of the positioning frame 11. The avoidance openings have a certain depth. When the CNC equipment drills holes at the position of the product 30 corresponding to the avoidance openings, it is beneficial to protect the drill bit.

[0033] Preferably, the sensor 16 is a pressure sensor 16, and the elongation of the spring column 15 is less than the height of the chassis frame 17. The spring column 15 has elasticity and can lift the product 30 by a certain height on the positioning frame 11. In this embodiment, the height lifted by the spring column 15 is less than the height of the chassis frame 17, that is, the spring column 15 only lifts the product 30 by a certain height, rather than lifting the entire product 30 from the positioning frame 11, which can effectively prevent the product 30 from falling off the positioning frame 11 and has good safety.

[0034] In summary, the design focus of the present utility model lies in that a plurality of sensors 16 are provided on the side of the positioning frame 11, and spring columns 15 are provided on the top of the positioning frame 11. The sensors 16 will be triggered by the product 30, thereby determining that the product 30 has been accurately positioned in the positioning frame 11. Subsequently, the first driving source 21 drives the pressing rod 23 to press the product 30 tightly in the positioning frame 11. When the first driving source 21 drives the pressing rod 23 to release the product 30, the elastic force of the spring columns 15 will lift the product 30 to a certain height, which facilitates the worker to take out the product 30 and is beneficial to improving the processing efficiency.

[0035] The above is only a preferred embodiment of the present utility model and does not impose any formal restrictions on the present utility model. Although the present utility model has been disclosed above with a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A chassis frame positioning fixture, characterized in that: It comprises a base, a positioning frame, and several groups of clamping mechanisms, wherein the positioning frame is arranged on the base; and the clamping mechanism is arranged on the inner side of the positioning frame; The clamping mechanism comprises a first driving source, a connecting rod and a pressure rod, wherein the first driving source is arranged in a positioning frame, the first end of the connecting rod is hinged to the housing of the first driving source, the second end of the connecting rod is hinged to the pressure rod, and the first end of the pressure rod is hinged to the output end of the first driving source; A plurality of sensors are arranged on the side of the positioning frame, and a spring column is arranged on the top of the positioning frame; the chassis frame is sleeved on the positioning frame, the pressing rod presses the chassis frame, and the chassis frame presses the sensors and the spring column.

2. The chassis frame positioning fixture according to claim 1, characterized in that: The top inner side of the positioning frame has a first supporting flange, and the side of the positioning frame has a second supporting flange. The first supporting flange supports the top of the chassis frame, and the second supporting flange supports the bottom of the chassis frame.

3. The chassis frame positioning fixture according to claim 1, characterized in that: A first flexible pad is arranged on the top of the positioning frame.

4. A chassis frame positioning fixture according to claim 1 or 3, characterized in that: The pressure rod is provided with a second flexible pad, and the second flexible pad can be pressed on the chassis frame.

5. The chassis frame positioning fixture according to claim 1, characterized in that: At least one set of the clamping mechanisms is arranged on each side of the positioning frame.

6. The chassis frame positioning fixture according to claim 1, characterized in that: The base is provided with a mounting groove, and the clamping mechanism is arranged in the mounting groove; the bottom wall of the mounting groove is penetrated by a third mounting hole for mounting the first driving source, and a fourth mounting hole for mounting the base.

7. The chassis frame positioning fixture according to claim 1, characterized in that: The outer wall of the positioning frame is provided with a plurality of avoidance openings.

8. The chassis frame positioning fixture according to claim 1, characterized in that: The sensor is a pressure sensor, and the elongation of the spring column is smaller than the height of the chassis frame.

9. A CNC processing equipment, characterized in that: It comprises a chassis frame positioning jig as described in any one of claims 1 to 8, and a lathe.

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