Automatic clamping fixture for grinding machining

Abstract

The utility model relates to the technical field of clamps, discloses an automatic clamping clamp for grinding machining, and solves the problems that an existing clamp is usually used for clamping a ground object in a manual knob mode, so that a worker needs to adjust the position of the clamp before grinding, the ground object is conveniently clamped, and the work efficiency is high. The device comprises a clamping device, a self-centering device is arranged on one side of the clamping device, a moving assembly is fixedly arranged at the lower end of the self-centering device, a containing table is fixedly arranged at the upper end of the moving assembly, and the self-centering device comprises a three-jaw chuck assembly. A first connecting block is fixedly arranged on the outer side of the three-jaw chuck assembly, a second connecting block is fixedly arranged at the end, away from the three-jaw chuck assembly, of the first connecting block, a handrail is fixedly arranged on the outer side of the second connecting block, and a supporting block is fixedly arranged at the lower end of the three-jaw chuck assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to an automatic clamping clamp for grinding. Background Art

[0002] Grinding is the process of cutting a workpiece surface using numerous abrasive particles on a grinding tool, such as a grinding wheel. Abrasive particles are typically extremely hard, creating a cutting action upon contact with the workpiece, removing material from the surface. Under the influence of the high-speed rotating grinding wheel, the abrasive particles contact the workpiece surface at a specific angle and pressure, generating cutting forces. These cutting forces cause the abrasive particles to penetrate the workpiece surface, removing material and forming chips. The shape, size, and hardness of the abrasive particles determine the cutting effect. For example, sharp abrasive particles generate greater cutting forces, while duller abrasive particles primarily remove material through compression and friction.

[0003] A fixture is a device used to fix the workpiece in the mechanical manufacturing process so that it occupies the correct position to accept construction or inspection. It is also called a fixture. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process in the process can be called a fixture; the fixture is usually composed of a positioning element (to determine the correct position of the workpiece in the fixture), a clamping device, a tool guide element (to determine the relative position of the tool and the workpiece or to guide the direction of the tool), an indexing device (to enable the workpiece to complete the processing of several stations in one installation, and there are two types of rotary indexing devices and linear moving indexing devices), connecting elements and a clamping body (fixture base).

[0004] In the existing grinding process, the object needs to be clamped to facilitate the operation of the grinding equipment by the staff. However, the current clamps usually clamp the grinding objects by means of manual knobs, so that the staff needs to adjust the position of the clamps before grinding to facilitate clamping the grinding objects. At the same time, the two ends of the object are not level when clamping, resulting in low grinding efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic clamping fixture for grinding processing. By adopting this device to work, the problem that the current fixture usually clamps the grinding object by means of a manual knob, so that the staff needs to adjust the position of the fixture before grinding to facilitate clamping the grinding object, and the problem that the two ends of the object are not level when clamping the object is solved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic clamping fixture for grinding processing, comprising a clamping device, a self-centering device is provided on one side of the clamping device, a moving component is fixedly provided at the lower end of the self-centering device, and a placing table is fixedly provided at the upper end of the moving component, the self-centering device comprises a three-jaw chuck assembly, a connecting block 1 is fixedly provided on the outer side of the three-jaw chuck assembly, a connecting block 2 is fixedly provided on the end of the connecting block 1 away from the three-jaw chuck assembly, an armrest is fixedly provided on the outer side of the connecting block 2, and a support block is fixedly provided at the lower end of the three-jaw chuck assembly. When we tighten the grinding tool, the clamping device may cause the two ends to tilt when clamping the grinding tool. We position the grinding tool through the self-centering device so that the grinding tool remains level, and the moving component is moved by the armrest pushing device.

[0007] Preferably, the clamping device includes a connecting table, and two groups of vertical clamping rods are fixedly provided on the side of the connecting table away from the self-centering device, and the two groups of vertical clamping rods are symmetrically distributed on the connecting table, and two groups of horizontal clamping rods are fixedly provided on the side of the connecting table away from the self-centering device, and the horizontal clamping rods are symmetrically distributed on the connecting table, and the vertical clamping rods and the horizontal clamping rods are vertically cross-distributed. A hole is opened inside the connecting table, and the hole is located in the center of the connecting table. The two groups of vertical clamping rods and the two groups of horizontal clamping rods are centrally symmetrical with respect to the hole. After the mold is positioned by the self-centering device, it passes through the connecting table and is clamped by controlling the two groups of vertical clamping rods and the horizontal clamping rods to fix the mold.

[0008] The lower end of the screw rod is fixedly provided with a connecting plate, and the lower end of the connecting plate is rotatably connected to the L-shaped connecting plate. The two sets of vertical clamping rods are rotated by the motor to control the screw rod to rotate, so that the lifting platform clamps the mold by rotating and tightening, realizing the function of automatic clamping.

[0009] Preferably, the hole is in the same horizontal line as the three-jaw chuck assembly, and the grinding tool is clamped by the vertical clamping rod through the hole.

[0010] Preferably, the three-jaw chuck assembly includes multiple groups of bolts, the lower ends of the bolts are penetrated by a fixing frame, the lower end of the fixing frame is fixedly provided with a fixing disc, the lower end of the bolts is threaded with a positioning block, the positioning block is slidably installed inside the fixed disc, the self-centering device is fixed by the three-jaw chuck assembly, the three-jaw chuck assembly clamps the mold by multiple groups of positioning blocks, and fixes the mold by tightening the bolts.

[0011] Preferably, the moving assembly includes a moving plate, the upper end of the moving plate is fixedly connected to the connecting table, the upper end of the moving plate is fixedly connected to the placing table, the upper end of the moving plate is fixedly connected to the supporting block, the lower end of the moving plate is fixedly provided with multiple groups of connecting columns, the lower end of the connecting column is rotatably provided with a connecting block five, the inner side of the connecting block five is fixedly provided with a rotating shaft, the two ends of the rotating shaft are fixedly connected to the connecting block five, the outer side of the rotating shaft is rotatably provided with a rotating wheel, and the moving assembly is moved by the armrest pushing device.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The utility model proposes an automatic clamping fixture for grinding processing, including a clamping device, a self-centering device is provided on one side of the clamping device, a moving component is fixedly provided at the lower end of the self-centering device, a placing table is fixedly provided at the upper end of the moving component, the self-centering device includes a three-jaw chuck assembly, a connecting block 1 is fixedly provided on the outer side of the three-jaw chuck assembly, a connecting block 2 is fixedly provided on the end of the connecting block 1 away from the three-jaw chuck assembly, an armrest is fixedly provided on the outer side of the connecting block 2, and a support block is fixedly provided at the lower end of the three-jaw chuck assembly. When we tighten the grinding tool, the clamping device may cause the two ends to tilt when clamping the grinding tool. We position the grinding tool through the self-centering device so that the grinding tool remains level, and the moving component is moved by the armrest pushing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the clamping device of the present utility model;

[0016] Figure 3 This is a schematic diagram of the vertical clamping rod structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the connecting rod structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the hole structure of the utility model;

[0019] Figure 6 This is a schematic structural diagram of the self-centering device of the utility model;

[0020] Figure 7 This is a schematic structural diagram of the three-jaw chuck assembly of the utility model;

[0021] Figure 8 This is a schematic diagram of the structure of the mobile component of the present utility model.

[0022] In the figure: 1. Clamping device; 11. Connecting table; 111. Hole; 12. Vertical clamping rod; 121. Motor; 122. Fixed rod; 123. Connecting block four; 124. L-shaped connecting plate; 125. Screw rod; 126. Lifting platform; 127. Card and block; 128. Connecting rod; 129. Connecting plate; 13. Horizontal clamping rod; 2. Self-centering device; 21. Three-jaw chuck assembly; 211. Bolt; 212. Fixed frame; 213. Positioning block; 214. Fixed disc; 22. Connecting block one; 23. Connecting block two; 24. Handrail; 25. Support block; 3. Moving assembly; 31. Moving plate; 32. Connecting column; 33. Connecting block five; 34. Rotating shaft; 35. Rotating wheel; 4. Placement table. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0025] Combine Figure 1 and Figure 6 , an automatic clamping fixture for grinding processing includes a clamping device 1, a self-centering device 2 is provided on one side of the clamping device 1, a moving component 3 is fixedly provided at the lower end of the self-centering device 2, and a placing table 4 is fixedly provided at the upper end of the moving component 3, the self-centering device 2 includes a three-jaw chuck assembly 21, a connecting block 1 22 is fixedly provided on the outer side of the three-jaw chuck assembly 21, a connecting block 23 is fixedly provided on the end of the connecting block 1 22 away from the three-jaw chuck assembly 21, an armrest 24 is fixedly provided on the outer side of the connecting block 23, and a support block 25 is fixedly provided at the lower end of the three-jaw chuck assembly 21. When we tighten the grinding tool, the clamping device 1 may cause the two ends to tilt when clamping the grinding tool. We position the grinding tool through the self-centering device 2 so that the grinding tool remains level, and the moving component 3 pushes the device to move through the armrest 24.

[0026] Combine Figure 1 and Figure 2, an automatic clamping fixture for grinding processing, the clamping device 1 includes a connecting table 11, two groups of vertical clamping rods 12 are fixedly provided on the side of the connecting table 11 away from the self-centering device 2, the two groups of vertical clamping rods 12 are symmetrically distributed on the connecting table 11, and two groups of horizontal clamping rods 13 are fixedly provided on the side of the connecting table 11 away from the self-centering device 2, the horizontal clamping rods 13 are symmetrically distributed on the connecting table 11, the vertical clamping rods 12 and the horizontal clamping rods 13 are vertically cross-distributed, a hole 111 is opened inside the connecting table 11, the hole 111 is located at the center of the connecting table 11, the two groups of vertical clamping rods 12 and the two groups of horizontal clamping rods 13 are centrally symmetrical with respect to the hole 111, when the grinding tool is positioned by the self-centering device 2, it passes through the connecting table 11, and is clamped by controlling the two groups of vertical clamping rods 12 and the horizontal clamping rods 13 to fix the grinding tool.

[0027] Combine Figure 2 、 Figure 3 and Figure 5 , an automatic clamping fixture for grinding processing, the vertical clamping rod 12 includes a motor 121, a fixed rod 122 is fixedly provided at the driving end of the motor 121, a connecting block 123 is provided at the lower end of the fixed rod 122, the fixed rod 122 is movably connected to the connecting block 123, an L-shaped connecting plate 124 is fixedly provided at one end of the connecting block 123 close to the connecting platform 11, the L-shaped connecting plate 124 is fixedly connected to the connecting platform 11, a screw rod 125 is fixedly provided at the lower end of the fixed rod 122, and a lifting platform 126 is provided on the outer thread of the screw rod 125, and the lifting platform 126 is fixedly provided on the side away from the L-shaped connecting plate 124 There are cards and blocks 127, and a connecting rod 128 is provided on one side of the lifting platform 126 close to the L-shaped connecting plate 124. The lifting platform 126 is slidably connected to the connecting rod 128, and the upper end of the connecting rod 128 is fixedly connected to the connecting block 123, and the lower end of the connecting rod 128 is fixedly connected to the L-shaped connecting plate 124. A connecting disk 129 is fixedly provided at the lower end of the screw rod 125, and the lower end of the connecting disk 129 is rotatably connected to the L-shaped connecting plate 124. The two sets of vertical clamping rods 12 control the screw rod 125 to rotate through the motor 121, so that the lifting platform 126 clamps the mold by rotating and tightening, thereby realizing the function of automatic clamping.

[0028] Combine Figure 2 and Figure 5 , an automatic clamping fixture for grinding processing, the hole 111 is on the same horizontal line as the three-jaw chuck assembly 21, and the grinding tool is clamped by the vertical clamping rod 12 through the hole 111.

[0029] Combine Figure 6 and Figure 7, an automatic clamping fixture for grinding processing, the three-jaw chuck assembly 21 includes multiple groups of bolts 211, the lower end of the bolt 211 is penetrated by a fixing frame 212, the lower end of the fixing frame 212 is fixedly provided with a fixing disc 214, the lower end of the bolt 211 is threaded with a positioning block 213, the positioning block 213 is slidably installed inside the fixed disc 214, the self-centering device 2 is fixed by the three-jaw chuck assembly 21, the three-jaw chuck assembly 21 clamps the grinding tool through multiple groups of positioning blocks 213, and fixes the grinding tool by tightening the bolts 211.

[0030] Combine Figure 1 and Figure 7 , an automatic clamping fixture for grinding processing, the moving component 3 includes a moving plate 31, the upper end of the moving plate 31 is fixedly connected to the connecting table 11, the upper end of the moving plate 31 is fixedly connected to the placing table 4, the upper end of the moving plate 31 is fixedly connected to the supporting block 25, and the lower end of the moving plate 31 is fixedly provided with multiple groups of connecting columns 32, the lower end of the connecting column 32 is rotatably provided with a connecting block five 33, the inner side of the connecting block five 33 is fixedly provided with a rotating shaft 34, the two ends of the rotating shaft 34 are fixedly connected to the connecting block five 33, and the outer side of the rotating shaft 34 is rotatably provided with a rotating wheel 35, and the moving component 3 is moved by the armrest 24 pushing device.

[0031] Working principle: When we tighten the mold, the mold passes through the connecting platform 11 through the self-centering device 2 and is clamped by controlling two sets of vertical clamping rods 12 and horizontal clamping rods 13. When the mold is clamped, the two ends may be tilted. We position the mold through the self-centering device 2 to keep it horizontal. The self-centering device 2 fixes it through the three-jaw chuck assembly 21. The three-jaw chuck assembly 21 clamps the mold through multiple sets of positioning blocks 213. The mold is fixed by tightening the bolts 211. The moving assembly 3 pushes the device through the armrest 24 to move.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic clamping fixture for grinding, comprising a clamping device (1), a self-centering device (2) provided on one side of the clamping device (1), a moving assembly (3) fixedly provided at the lower end of the self-centering device (2), and a placing table (4) fixedly provided at the upper end of the moving assembly (3), characterized in that: The self-centering device (2) comprises a three-jaw chuck assembly (21), a connecting block (22) is fixedly provided on the outer side of the three-jaw chuck assembly (21), a connecting block (23) is fixedly provided on one end of the connecting block (22) away from the three-jaw chuck assembly (21), an armrest (24) is fixedly provided on the outer side of the connecting block (23), and a supporting block (25) is fixedly provided on the lower end of the three-jaw chuck assembly (21).

2. The automatic clamping fixture for grinding according to claim 1, characterized in that: The clamping device (1) comprises a connecting platform (11), two groups of vertical clamping rods (12) are fixedly provided on one side of the connecting platform (11) away from the self-centering device (2), and the two groups of vertical clamping rods (12) are symmetrically distributed on the connecting platform (11), two groups of horizontal clamping rods (13) are fixedly provided on one side of the connecting platform (11) away from the self-centering device (2), and the horizontal clamping rods (13) are symmetrically distributed on the connecting platform (11), and the vertical clamping rods (12) and the horizontal clamping rods (13) are vertically cross-distributed, and a hole (111) is opened inside the connecting platform (11), and the hole (111) is located at the center of the connecting platform (11), and the two groups of vertical clamping rods (12) and the two groups of horizontal clamping rods (13) are centrally symmetrical with respect to the hole (111).

3. The automatic clamping fixture for grinding according to claim 2, characterized in that: The vertical clamping rod (12) includes a motor (121), a fixed rod (122) is fixedly provided at the driving end of the motor (121), a connecting block (123) is provided through the lower end of the fixed rod (122), the fixed rod (122) and the connecting block (123) are movably connected, an L-shaped connecting plate (124) is fixedly provided at one end of the connecting block (123) close to the connecting platform (11), the L-shaped connecting plate (124) is fixedly connected to the connecting platform (11), a screw rod (125) is fixedly provided at the lower end of the fixed rod (122), and a lifting platform (126) is provided on the outer thread of the screw rod (125). ), a card and a block (127) are fixedly provided on the side of the lifting platform (126) away from the L-shaped connecting plate (124), a connecting rod (128) is provided through the side of the lifting platform (126) close to the L-shaped connecting plate (124), the lifting platform (126) is slidably connected to the connecting rod (128), the upper end of the connecting rod (128) is fixedly connected to the connecting block (123), the lower end of the connecting rod (128) is fixedly connected to the L-shaped connecting plate (124), the lower end of the screw rod (125) is fixedly provided with a connecting disk (129), and the lower end of the connecting disk (129) is rotatably connected to the L-shaped connecting plate (124).

4. The automatic clamping fixture for grinding according to claim 2, characterized in that: The hole (111) and the three-jaw chuck assembly (21) are on the same horizontal line.

5. The automatic clamping fixture for grinding according to claim 2, characterized in that: The three-jaw chuck assembly (21) includes multiple groups of bolts (211), the lower ends of the bolts (211) are penetrated by a fixing frame (212), the lower end of the fixing frame (212) is fixedly provided with a fixing disc (214), the lower end of the bolts (211) is threadedly provided with a positioning block (213), and the positioning block (213) is slidably installed inside the fixing disc (214).

6. The automatic clamping fixture for grinding according to claim 1, characterized in that: The moving assembly (3) comprises a moving plate (31), the upper end of the moving plate (31) is fixedly connected to the connecting platform (11), the upper end of the moving plate (31) is fixedly connected to the placing platform (4), the upper end of the moving plate (31) is fixedly connected to the supporting block (25), a plurality of connecting columns (32) are fixedly provided at the lower end of the moving plate (31), a connecting block five (33) is rotatably provided at the lower end of the connecting column (32), a rotating shaft (34) is fixedly provided on the inner side of the connecting block five (33), both ends of the rotating shaft (34) are fixedly connected to the connecting block five (33), and a rotating wheel (35) is rotatably provided on the outer side of the rotating shaft (34).

Images