Quick clamping and positioning device for numerical control machine tool

Abstract

A quick clamping and positioning device for a numerical control machine tool belongs to the technical field of machining auxiliary equipment and comprises a universal positioner assembly, and the universal positioner assembly comprises a connecting rod, rotating shafts fixed at the two ends of the connecting rod and supporting seats rotationally connected to the rotating shafts; the positioning assembly comprises a supporting plate fixed to one end of one rotating shaft, a first through hole formed in the upper end of the supporting plate, a supporting column inserted into the first through hole, a clamping plate fixed to one end of the supporting column and a spring connected to the supporting column in a sleeving mode, one end of the spring is fixed to the side edge of the clamping plate, and the other end of the spring is fixed to the side edge of the supporting plate. According to the utility model, the universal positioner assembly and the positioning assembly are matched with each other, so that during use, after the positioning rod is rotated to determine the positioning position of a workpiece and the bolt is tightened to fix the positioning rod, the problems that the position of the positioning rod deviates due to hand shaking, and the positioning accuracy and the machining precision of the workpiece are low are solved; and the machining precision and the machining quality are further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining auxiliary equipment, and relates to a positioning device for machining, specifically to a quick clamping and positioning device for a numerical control machine tool. Background Technique

[0002] When machining workpieces using a numerical control machine tool, it is necessary to use a fixture to clamp the workpieces. At the same time, during the use of the fixture, some tools for auxiliary positioning and auxiliary clamping are also required to meet the quick positioning between the workpiece and the fixture. An existing universal positioner is connected to a machine tool with a T-shaped groove through a slider. By rotating the connecting rod, the positioning rod at the upper end of the connecting rod can rotate 360 degrees. After positioning the position of the workpiece with the positioning rod, tighten the bolt to fix the positioning rod. During mass production, it can be quickly positioned and clamped with a fixture. However, when in use, after the support seat connected to the slider is fixed, when adjusting the position of the upper end of the connecting rod to position the positioning rod, hold the positioning rod with one hand and tighten the fastening bolts on the upper support seat and the disc with the other hand. During the screwing process, due to the shaking of the hand, the position of the positioning rod will shift, thereby affecting the machining accuracy of the workpiece. Therefore, it is necessary to design a quick clamping and positioning device for a numerical control machine tool. Content of the Utility Model

[0003] The purpose of the utility model is to address the deficiencies in the prior art, such as when determining the positioning position of the workpiece by rotating the positioning rod and then tightening the bolt to fix the positioning rod, the position of the positioning rod shifts due to hand shaking, resulting in a decrease in the accuracy of workpiece positioning and machining accuracy. A quick clamping and positioning device for a numerical control machine tool is proposed to further improve the positioning accuracy of the workpiece and the machining quality of the workpiece.

[0004] A quick clamping and positioning device for a numerical control machine tool provided by this application adopts the following technical solutions:

[0005] A quick clamping and positioning device for a numerical control machine tool includes:

[0006] A universal positioner assembly, the universal positioner assembly includes a connecting rod, rotating shafts fixed at both ends of the connecting rod, and a support seat rotatably connected to the rotating shafts;

[0007] A positioning assembly, the positioning assembly includes a support plate fixed at one end of one of the rotating shafts, a first through hole opened at the upper end of the support plate, a support column inserted into the first through hole, a clamping plate fixed at one end of the support column, and a spring sleeved on the support column, and one end of the spring is fixed to the side of the clamping plate and the other end is fixed to the side of the support plate.

[0008] As a preferred embodiment of the quick clamping and positioning device for a numerical control machine tool described in the present utility model, the positioning assembly further includes an arc-shaped connecting plate fixed to the lower end of the side of the support plate, and a fixing plate fixed to the other end of the arc-shaped connecting plate, and the fixing plate is fixed to one end of the upper rotating shaft by screws.

[0009] As a preferred embodiment of the quick clamping and positioning device for a numerical control machine tool described in the present utility model, the positioning assembly further includes a connecting column fixed to one end of the support column, a pulling plate fixed to the other end of the connecting column, and an anti-slip pad fixed to the clamping plate away from the support column end.

[0010] As a preferred embodiment of the quick clamping and positioning device for a numerical control machine tool described in the present utility model, the universal locator assembly further includes a slider fixed to the middle of the lower end of the lower support seat by an internal hexagonal bolt, a disc fixed to the middle of the upper end of the upper support seat by an internal hexagonal bolt, and a positioning rod inserted into the side of the disc.

[0011] As a preferred embodiment of the quick clamping and positioning device for a numerical control machine tool described in the present utility model, it further includes an adjusting assembly, and the adjusting assembly includes a screw rod fixed to one end of the positioning rod and an extension rod screwed onto the screw rod.

[0012] As a preferred embodiment of the quick clamping and positioning device for a numerical control machine tool described in the present utility model, the adjusting assembly further includes a groove opened at one end of the extension rod and a second through hole opened in the middle of the extension rod, and the screw rod is respectively screwed into the groove and the second through hole.

[0013] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0014] (1) By the mutual cooperation of the universal locator assembly and the positioning assembly in the present utility model, when in use, after determining the workpiece positioning position by rotating the positioning rod and then tightening the bolt to fix the positioning rod, the problem that the position of the positioning rod deviates due to hand shaking, resulting in low workpiece positioning accuracy and machining precision, is solved, and the machining precision and machining quality are further improved.

[0015] (2) By setting the adjusting assembly in the present utility model, when the space between the machine tool workbench and the workpiece to be processed is narrow, the position of the positioning rod and the extension rod can be adjusted to make the positioning rod adapt to the changes in different spatial positions, improving the applicability of the positioning rod. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the positioning assembly in the present utility model.

[0018] Figure 3 This is a schematic structural diagram of the adjustment component in the present utility model.

[0019] In the figure: slider 10, support base 11, connecting rod 12, rotating shaft 13, disc 14, positioning rod 15, fixing plate 20, arc connecting plate 21, support plate 22, first through hole 23, pulling plate 24, connecting column 25, support column 26, spring 27, clamping plate 28, anti-slip pad 29, screw 30, extension rod 31, groove 32, second through hole 33. Specific embodiments

[0020] The present utility model will be further clarified below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model patent and not to limit the scope of the utility model patent. After reading the utility model patent, various equivalent forms of modification by those skilled in the art fall within the scope defined by the appended claims of this application.

[0021] Embodiment 1

[0022] As Figures 1-3 shown, it is a schematic diagram of the overall structure of an embodiment of a quick clamping and positioning device for a numerical control machine tool. The main structures in this example include: a universal locator assembly and a positioning assembly.

[0023] The universal locator assembly is used to position the workpiece. Specifically, the universal locator assembly includes a connecting rod 12, rotating shafts 13 fixed at both ends of the connecting rod 12, support bases 11 rotatably connected to the rotating shafts 13, a slider 10 fixed to the middle of the lower end of the lower support base 11 by an internal hexagonal bolt, a disc 14 fixed to the middle of the upper end of the upper support base 11 by an internal hexagonal bolt, and a positioning rod 15 inserted into the side of the disc 14.

[0024] During specific use, move the slider 10 into the T-slot of the machine tool, rotate the connecting rod 12 and the upper support base 11 and disc 14 above to roughly judge the position of the positioning rod 15. Then tighten the fastening bolt on the lower support base 11 to fix the positions of the slider 10, the lower support base 11 and the connecting rod 12. Then rotate the support base 11 and disc 14 above the connecting rod 12 and pull the positioning rod 15 to make one end of the positioning rod 15 fit the workpiece. Then tighten the fastening bolt above the disc 14 to fix the positions of the support base 11, disc 14 and positioning rod 15 above the connecting rod 12, and the workpiece can be quickly positioned in subsequent processing.

[0025] The positioning component is used to ensure that the positioning rod 15 does not shift when tightening the bolt for fixing the position. Specifically, the positioning component includes a support plate 22 fixed to one end of one of the rotating shafts 13, a first through hole 23 opened at the upper end of the support plate 22, a support column 26 inserted into the first through hole 23, a clamping plate 28 fixed to one end of the support column 26, a spring 27 sleeved on the support column 26, with one end of the spring 27 fixed to the side of the clamping plate 28 and the other end fixed to the side of the support plate 22, an arc-shaped connecting plate 21 fixed to the lower side of the support plate 22, and a fixing plate 20 fixed to the other end of the arc-shaped connecting plate 21, and the fixing plate 20 is fixed to one end of the upper rotating shaft 13 by screws, a connecting column 25 fixed to one end of the support column 26, a pulling plate 24 fixed to the other end of the connecting column 25, and an anti-slip pad 29 fixed to the end of the clamping plate 28 away from the support column 26.

[0026] During specific use, after fixing the positions of the slider 10, the lower support base 11, and the connecting rod 12, hold the upper end of the connecting rod 12 with the hand, and push the pulling plate 24 outwards with two fingers, driving the connecting column 25 to move, and then driving the support column 26 to move along the first through hole 23 on the support plate 22, driving the anti-slip pad 29 on the clamping plate 28 to separate from the side of the upper support base 11 and the disc 14. Rotate the support base 11 and the disc 14 above the connecting rod 12, driving one end of the positioning rod 15 to move to the side of the workpiece to position the workpiece. Subsequently, release the fingers. Under the action of the spring 27, the clamping plate 28 drives the anti-slip pad 29 to fit against the side of the upper support base 11 and the disc 14, making the support base 11 and the disc 14 unable to shake. At this time, the upper fastening bolt can be tightened to tightly fix the positioning rod 15, which can avoid the problem that during the process of tightening the fastening bolt to fix the positioning rod 15, the position of the positioning rod 15 shifts due to hand shaking, affecting the accuracy of workpiece positioning, resulting in a decrease in workpiece processing accuracy, and even scrapping of workpieces.

[0027] Embodiment 2

[0028] As Figure 3 shown, the adjusting component includes a screw rod 30 fixed to one end of the positioning rod 15, an extension rod 31 screwed onto the screw rod 30, a groove 32 opened at one end of the extension rod 31, and a second through hole 33 opened in the middle of the extension rod 31, and the screw rod 30 is screwed into the groove 32 and the second through hole 33 respectively.

[0029] During specific use, it is necessary to judge whether the length of the extension rod 31 of the positioning rod 15 is appropriate according to the space size between the workpiece and the universal positioning device component. If the length is appropriate, the extension rod 31 and the positioning rod 15 are connected through the screw rod 30 and the groove 32. If it is too long, rotate the extension rod 31, the screw rod 30 rotates out of the groove 32, align the second through hole 33 with the screw rod 30 and screw it on, and then fix the universal positioning device component, which can improve the applicability of the positioning rod 15 when using the universal positioning device component.

Claims

1. A quick clamping and positioning device for a numerical control machine tool, characterized in that Comprising: A universal positioner assembly, the universal positioner assembly includes a connecting rod (12), rotating shafts (13) fixed at both ends of the connecting rod (12), and a support seat (11) rotatably connected to the rotating shafts (13); A positioning assembly, the positioning assembly includes a support plate (22) fixed at one end of one of the rotating shafts (13), a first through hole (23) opened at the upper end of the support plate (22), a support column (26) inserted into the first through hole (23), a clamping plate (28) fixed at one end of the support column (26), and a spring (27) sleeved on the support column (26), and one end of the spring (27) is fixed to the side of the clamping plate (28), and the other end is fixed to the side of the support plate (22).

2. The quick clamping and positioning device for a numerical control machine tool according to claim 1, wherein: The positioning assembly further includes an arc-shaped connecting plate (21) fixed to the lower side of the support plate (22), and a fixing plate (20) fixed to the other end of the arc-shaped connecting plate (21), and the fixing plate (20) is fixed to one end of the upper rotating shaft (13) by screws.

3. A quick clamping and positioning device for a numerical control machine tool according to claim 1, characterized in that: The positioning assembly further includes a connecting column (25) fixed at one end of the support column (26), a pulling plate (24) fixed at the other end of the connecting column (25), and an anti-slip pad (29) fixed to the end of the clamping plate (28) away from the support column (26).

4. A quick clamping and positioning device for a numerical control machine tool according to claim 1, characterized in that: The universal positioner assembly further includes a slider (10) fixed to the middle of the lower end of the lower support seat (11) by an inner hexagon bolt, a disc (14) fixed to the middle of the upper end of the upper support seat (11) by an inner hexagon bolt, and a positioning rod (15) inserted into the side of the disc (14).

5. A quick clamping and positioning device for a numerical control machine tool according to claim 4, characterized in that: It further includes an adjusting assembly, the adjusting assembly includes a screw rod (30) fixed at one end of the positioning rod (15), and an extension rod (31) screwed onto the screw rod (30).

6. The quick clamping and positioning device for a numerical control machine tool according to claim 5, characterized in that: The adjusting assembly further includes a groove (32) opened at one end of the extension rod (31), and a second through hole (33) opened in the middle of the extension rod (31), and the screw rod (30) is respectively screwed into the groove (32) and the second through hole (33).

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