Machining clamp and machining equipment

Abstract

The utility model relates to a machining clamp and machining equipment. The machining clamp comprises a clamp body. The number of the pre-positioning piece sets is four, and the four pre-positioning piece sets are connected to the clamp body in a pairwise symmetrical mode along the X axis and the Y axis correspondingly. The multiple positioning pins are arranged, and the multiple positioning pins are connected to the clamp body; the multiple sets of clamping assemblies are arranged, each clamping assembly comprises a fixed supporting piece and a driving source, the fixed supporting pieces and the driving sources are connected with the clamp body, and the output ends of the driving sources are connected with pressing blocks; the multiple floating supporting pieces are arranged, and the multiple floating supporting pieces are connected to the clamp body in a floating mode; according to the machining clamp, the workpiece is fixed and clamped through the pre-positioning piece set and the clamping assembly, and the floating supporting piece is matched to conduct auxiliary supporting on the workpiece, so that the situation that the workpiece is locally stressed and deforms in the machining process can be avoided, the vibration situation in the machining process can be reduced, and the machining quality is improved. And the machining precision and the final product quality are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, in particular to a machining fixture and machining equipment. Background Art

[0002] Inverters convert direct current (DC) into alternating current (AC) and are widely used in applications such as electric grinding wheels, power tools, sewing machines, washing machines, range hoods, massagers, fans, and vehicles. Automotive inverters, in particular, convert DC power from the vehicle's battery into three-phase AC power with adjustable amplitude, phase, and frequency, to drive the motor at a specified torque and speed.

[0003] The structural parts of the inverter are generally processed by machining. During the machining process, the structural part blanks need to be fixed to the workbench of the machine tool before processing; the existing fixing methods are mainly manual fixing through clamps such as pressing blocks or fixing the workpiece through pneumatic tools. Among them, manual fixing has the problems of unstable manual operation force and high clamping scrap rate; the clamping method of pneumatic tools has high requirements for the air source, and there is a situation where the workpiece vibrates due to insufficient clamping force, affecting the machining accuracy of the workpiece. Utility Model Content

[0004] To this end, the technical problem to be solved by the present invention is to overcome the existing method of fixing the structural parts of the inverter, which is mainly manual fixing through clamps such as pressure blocks or fixing the workpiece through pneumatic tools. Among them, manual fixing has the problem of unstable manual operation force and high clamping scrap rate; the clamping method of pneumatic tools has high requirements for the air source, and there is a problem of workpiece vibration due to insufficient clamping force, which affects the processing accuracy of the workpiece.

[0005] In order to solve the above technical problems, the utility model provides a machining fixture, comprising:

[0006] fixture body;

[0007] Pre-positioning component groups, wherein four groups are provided, and the four groups of pre-positioning component groups are symmetrically connected to the fixture body along the X-axis and the Y-axis, and a loading area for accommodating the workpiece is formed between the four groups of pre-positioning component groups;

[0008] Locating pins, wherein a plurality of the locating pins are provided, and the plurality of the locating pins are respectively connected to the clamp body and located in the loading area;

[0009] A clamping assembly, wherein the clamping assembly is provided in multiple groups, each of the multiple clamping assemblies includes a fixed support and a drive source, the fixed support is connected to the clamp body and is located in the loading area, the drive source is installed on the clamp body, and the output end of the drive source is connected to a pressure block located above the fixed support;

[0010] A floating support member is provided in plurality, and the plurality of floating support members are floatingly connected to the clamp body and evenly arranged in the loading area.

[0011] In one embodiment of the present invention, the clamp body is rectangular, and the four groups of pre-positioning components are respectively arranged near the four sides of the clamp body, and each group of pre-positioning components includes multiple pre-positioning components arranged at intervals along the length direction of the side where the pre-positioning component is located.

[0012] In one embodiment of the present invention, the pre-positioning member is L-shaped, comprising a long section and a short section perpendicular to each other, the short section is connected in parallel to the clamp body, and a ball plunger is provided at one end of the long section away from the short section.

[0013] In one embodiment of the present invention, a plurality of through slots are formed on the short section and the short section is connected to the clamp body at the through slots by bolts.

[0014] In one embodiment of the present invention, a positioning hole is formed at one end of the positioning pin away from the clamp body.

[0015] In one embodiment of the present invention, the driving source is vertically connected to the clamp body, the middle position of the pressure block is rotatably connected to the shell of the driving source, one end of the pressure block extends to the top of the corresponding fixed support member, and the other end is movably connected to the output end of the driving source.

[0016] In one embodiment of the present invention, a mounting seat is provided on the housing of the driving source, a first rotating shaft is rotatably connected to the mounting seat, two parallel mounting plates are symmetrically connected to both ends of the first rotating shaft, a second rotating shaft is rotatably connected between the ends of the two mounting plates away from the first rotating shaft, and the middle position of the pressure block is rotatably connected to the second rotating shaft.

[0017] In one embodiment of the present invention, three groups of floating support members are provided, and the three groups of floating support members are arranged in a triangle shape on the clamp body.

[0018] In one embodiment of the present invention, the driving source is an oil cylinder.

[0019] A processing device comprises the machining fixture as described in any one of the above items.

[0020] The above technical solution of the utility model has the following advantages compared with the prior art:

[0021] The utility model describes a machining fixture and processing equipment, including a fixture body, a pre-positioning component group, a positioning pin, a clamping assembly and a floating support; four pre-positioning component groups are provided, and the four pre-positioning component groups are symmetrically connected to the fixture body in pairs along the X-axis and the Y-axis; a plurality of positioning pins are provided, and the plurality of positioning pins are respectively connected to the fixture body; a plurality of clamping assemblies are provided, and the plurality of clamping assemblies include a fixed support and a driving source, the fixed support is connected to the fixture body, the driving source is installed on the fixture body, and the output end of the driving source is connected to a pressure block located above the fixed support; a plurality of floating supports are provided, and the plurality of floating supports are floatingly connected to the fixture body. The utility model provides a machining fixture, which fixes and clamps the workpiece to be processed through a pre-positioning component group and a clamping component, and is equipped with a floating support member to provide auxiliary support for the workpiece, which not only prevents the workpiece from being deformed due to local force during the machining process, but the floating structure can also reduce the occurrence of vibration during the machining process, which is beneficial to the machining accuracy and the final quality of the product; the entire fixture has a simple structure, is easy to install and operate, and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on the specific embodiments of the utility model and in conjunction with the accompanying drawings, wherein

[0023] Figure 1 It is a three-dimensional diagram of a machining fixture according to a preferred embodiment of the present utility model;

[0024] Figure 2 It is a structural schematic diagram of the clamping assembly of the machining fixture of the preferred embodiment of the present utility model;

[0025] Figure 3 It is a structural schematic diagram of a pre-positioning member of a machining fixture of a preferred embodiment of the utility model;

[0026] Figure 4 This is a schematic structural diagram of a positioning pin of a machining fixture in a preferred embodiment of the present utility model;

[0027] Figure 5 It is a structural diagram of the positioning column of the workpiece.

[0028] Explanation of the reference numerals in the accompanying drawings in the specification: 1. Clamp body; 2. Pre-positioning member group; 21. Pre-positioning member; 3. Positioning pin; 31. Positioning hole; 4. Clamping assembly; 41. Fixed support member; 42. Driving source; 43. Pressure block; 5. Floating support member; 6. Positioning column. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0030] Example 1

[0031] Reference Figures 1-4 As shown, the present invention is a machining fixture for fixing and clamping a workpiece to be machined, comprising:

[0032] Clamp body 1;

[0033] Pre-positioning component groups 2, there are four pre-positioning component groups 2, the four pre-positioning component groups 2 are symmetrically connected to the fixture body 1 along the X-axis and the Y-axis, and a loading area for accommodating the workpiece is formed between the four pre-positioning component groups 2;

[0034] Locating pins 3, a plurality of which are respectively connected to the fixture body 1 and located in the loading area;

[0035] The clamping assembly 4 is provided with multiple groups, each of which includes a fixed support member 41 and a drive source 42. The fixed support member 41 is connected to the clamp body 1 and is located in the loading area. The drive source 42 is installed on the clamp body 1, and the output end of the drive source 42 is connected to the pressure block 43 located above the fixed support member 41;

[0036] The floating support members 5 are provided in plurality, and the plurality of floating support members 5 are floatingly connected to the fixture body 1 and are evenly arranged in the loading area.

[0037] Specifically, the workpiece to be processed is rectangular as a whole, and the four groups of pre-positioning component groups 2 correspond to the shape of the workpiece, and are symmetrically arranged in pairs in the X-axis direction and the Y-axis direction. Each group of pre-positioning component groups 2 includes multiple pre-positioning components 21 vertically connected to the fixture body 1. After the workpiece is placed in the loading area composed of the pre-positioning components 21, the pre-positioning components 21 can limit the position of the four sides of the workpiece respectively.

[0038] It should be noted that when setting the pre-positioning member 21, it is necessary to ensure that when the workpiece is placed in the loading area, there is a gap of predetermined size (which may be a gap of less than 1 mm) between the side of the workpiece and the pre-positioning member 21, thereby ensuring that the workpiece can be easily placed in and taken out under the premise that the pre-positioning member 21 can effectively position the workpiece.

[0039] The positioning pin 3 is vertically arranged on the fixture body 1, and the positioning pin 3 plays a positioning role; and in order to facilitate positioning and operation, in the actual production process, such as Figure 5As shown, a positioning column 6 corresponding to the positioning pin 3 is provided on the workpiece blank, and the positioning column 6 can be embedded in the positioning hole 31 provided at the free end of the positioning pin 3, so that the staff can load the workpiece and confirm whether the workpiece is installed in place.

[0040] The clamping assembly 4 includes a plurality of pressure blocks 43 driven by a driving source 42, and a fixed support member 41 is provided under each pressure block 43 for use with the fixed support member to clamp the workpiece; the floating support member 5 can play an auxiliary supporting role for the workpiece in the process of the clamping assembly 4 clamping the workpiece, thereby preventing the workpiece from being deformed due to local force during the processing. At the same time, the floating structure can reduce the impact of vibration generated during the processing on the workpiece, thereby ensuring the processing accuracy.

[0041] Usage process: In the initial state, the clamping assembly 4 is in the open state; place the workpiece to be processed into the loading area, and confirm that the positioning column 6 on the workpiece corresponds to the position of the positioning pin 3, and control the clamping assembly 4 to press the workpiece for processing.

[0042] The utility model provides a machining fixture, which fixes and clamps the workpiece to be processed through a pre-positioning component group 2 and a clamping component 4, and is equipped with a floating support member 5 to provide auxiliary support for the workpiece. It can not only avoid the workpiece from being deformed due to local force during the processing, but the floating structure can also reduce the occurrence of vibration during the processing, which is beneficial to the processing accuracy and the final quality of the product; the structure of the entire fixture is simple, and it is easy to install and operate, and has high practicality.

[0043] Reference Figure 1 and Figure 3 As shown, the fixture body 1 is rectangular, and four pre-positioning member groups 2 are respectively arranged near the four sides of the fixture body 1. Each pre-positioning member group 2 includes a plurality of pre-positioning members 21 spaced apart along the length of the side to which it is located. Specifically, each pre-positioning member group 2 includes two pre-positioning members 21 spaced apart along the length of the side of the fixture body 1 to which it is adjacent (depending on the actual size of the product, each pre-positioning member group 2 may also include more pre-positioning members 21, not limited to two). The pre-positioning members 21 limit the freedom of the workpiece in the horizontal direction, thereby facilitating the loading of the workpiece.

[0044] Furthermore, the pre-positioning member 21 is L-shaped, comprising a long section and a short section perpendicular to each other, the short section is connected in parallel to the clamp body 1 , and a ball plunger is provided at one end of the long section away from the short section.

[0045] Furthermore, a plurality of through slots are formed on the short section and are connected to the fixture body 1 at the through slots by bolts. The pre-positioning member 21 is connected by fasteners such as bolts, which is convenient for installation and replacement.

[0046] Reference Figure 4As shown, further, a positioning hole 31 is formed at one end of the positioning pin 3 away from the clamp body 1 .

[0047] Reference Figure 2 As shown, further, the driving source 42 is vertically connected to the clamp body 1, the middle position of the pressure block 43 is rotatably connected to the shell of the driving source 42, one end of the pressure block 43 extends to the top of its corresponding fixed support 41, and the other end is movably connected to the output end of the driving source 42. Specifically, when the output shaft of the driving source 42 contracts, the clamping end of the pressure block 43 (i.e., the end located directly above the fixed support 41) rises and opens, thereby releasing the workpiece; when the output shaft of the driving source 42 extends, the clamping end of the pressure block 43 presses down to press the workpiece onto the fixed support 41. It can be imagined that the method of driving the pressure block to rotate to achieve clamping of the workpiece can better achieve the fixation of the workpiece compared to the method of driving the pressure block to rise and fall to clamp the workpiece by the driving source.

[0048] Furthermore, the housing of the drive source 42 is provided with a mounting base, to which a first rotating shaft is rotatably connected. Two parallel mounting plates are symmetrically connected at both ends of the first rotating shaft. A second rotating shaft is rotatably connected between the ends of the two mounting plates remote from the first rotating shaft. The middle portion of the pressure block 43 is rotatably connected to the second rotating shaft. Specifically, this connection structure allows the pressure block 43 to flip outward as a whole when the clamping assembly 4 is in the open position, thereby freeing space within the loading area for a workpiece to be placed.

[0049] Furthermore, three groups of floating supports 5 are provided, and the three groups of floating supports 5 are arranged in a triangular shape on the fixture body 1. It can be imagined that the floating supports 5 arranged in a triangular shape can play a better fixing role and ensure the stability of the workpiece.

[0050] Furthermore, the driving source 42 is a cylinder, but is not limited to a cylinder.

[0051] Example 2

[0052] The utility model also discloses a processing device, which includes the machining fixture as described in the first embodiment.

[0053] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A machining fixture, characterized in that: include: fixture body; Pre-positioning component groups, wherein four groups are provided, and the four groups of pre-positioning component groups are symmetrically connected to the fixture body along the X-axis and the Y-axis, and a loading area for accommodating the workpiece is formed between the four groups of pre-positioning component groups; Locating pins, wherein a plurality of the locating pins are provided, and the plurality of the locating pins are respectively connected to the clamp body and located in the loading area; A clamping assembly, wherein the clamping assembly is provided in multiple groups, each of the multiple clamping assemblies includes a fixed support and a drive source, the fixed support is connected to the clamp body and is located in the loading area, the drive source is installed on the clamp body, and the output end of the drive source is connected to a pressure block located above the fixed support; A floating support member is provided in plurality, and the plurality of floating support members are floatingly connected to the clamp body and evenly arranged in the loading area.

2. The machining fixture according to claim 1, characterized in that: The clamp body is rectangular, and the four groups of pre-positioning components are respectively arranged near the four sides of the clamp body, and each group of the pre-positioning components includes a plurality of pre-positioning components spaced apart along the length direction of the side where the pre-positioning component is located.

3. The machining fixture according to claim 2, characterized in that: The pre-positioning member is L-shaped and includes a long section and a short section perpendicular to each other. The short section is connected to the clamp body in parallel. A ball plunger is provided at one end of the long section away from the short section.

4. The machining fixture according to claim 3, characterized in that: The short section is provided with a plurality of through slots and is connected to the clamp body at the through slots by bolts.

5. The machining fixture according to claim 1, characterized in that: A positioning hole is formed at one end of the positioning pin away from the clamp body.

6. The machining fixture according to claim 1, characterized in that: The driving source is vertically connected to the clamp body, the middle position of the pressure block is rotatably connected to the shell of the driving source, one end of the pressure block extends to the top of the corresponding fixed support member, and the other end is movably connected to the output end of the driving source.

7. The machining fixture according to claim 6, characterized in that: A mounting seat is provided on the housing of the driving source, and a first rotating shaft is rotatably connected to the mounting seat. Two parallel mounting plates are symmetrically connected to both ends of the first rotating shaft. A second rotating shaft is rotatably connected between the ends of the two mounting plates away from the first rotating shaft, and the middle position of the pressure block is rotatably connected to the second rotating shaft.

8. The machining fixture according to claim 1, characterized in that: The floating support members are provided in three groups, and the three groups of floating support members are arranged in a triangle shape on the clamp body.

9. The machining fixture according to claim 1, characterized in that: The driving source is an oil cylinder.

10. A processing equipment, characterized in that: The invention comprises a machining fixture as described in any one of claims 1 to 9.

Images