Automatic workpiece clamping jig for milling machine

Abstract

The automatic workpiece clamping jig comprises a base, a pushing assembly, an auxiliary butt-clamping assembly, a detachable and replaceable clamping carrying table and a storage table, the clamping carrying table is arranged in the middle of the base, the pushing assembly is arranged on one side of the clamping carrying table, the auxiliary butt-clamping assembly is arranged in the opposite position of the pushing assembly, and the clamping carrying table is arranged on the storage table. The pushing assembly comprises a pushing air cylinder, a pushing arm, a pushing sliding block and a hinge seat, the clamping carrying table comprises a limiting table, a lifting block, a clamping block and a reference block, pushing sliding rails matched with the pushing sliding block are symmetrically arranged on the two sides of the limiting table, and the lifting block is arranged on the limiting table; according to the jig, blanks are synchronously pushed in the alignment direction through the auxiliary butt-clamping assembly and the pushing assembly, positioning and then clamping are achieved, a pushing sliding block is arranged to be matched with a limiting table, and a lifting block can be freely disassembled and replaced through matching of a limiting sliding rail and a sliding groove so that the jig can be matched with the blanks of different specifications, and short-distance grabbing of an air cylinder clamping jaw is facilitated through a material storage table; rapid clamping of the collecting pipe can be improved, and the production and machining precision and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to an automatic clamping fixture for a milling machine workpiece. Background Art

[0002] The processing of non-standard workpieces is most common in the field of CNC machining. In order to accurately locate the positioning reference for non-standard parts, conveniently and quickly locate and clamp them, and implement precision machining, manufacturers usually design a special adapter fixture to improve the rapid processing of such non-standard manifolds and improve production and machining accuracy and efficiency.

[0003] There is a collector used in the temperature control system of the battery pack of new energy vehicles. It is used to guide the temperature control liquid in the battery pack. Its structure is complex, including the middle diverter plate and the guide interfaces on both sides. In order to enable the CNC machine tool to quickly calibrate and position non-standard parts and facilitate the machine tool to quickly calibrate and move the tool, we need to design a precise and fast positioning and clamping fixture for the collector. Utility Model Content

[0004] Purpose of the utility model: In view of the technical requirements of the background technology for the precise processing and quick positioning and clamping of the collecting pipe, we design an automatic clamping fixture for milling machine workpieces, which can improve the rapid processing of the collecting pipe and improve the production and processing accuracy and efficiency.

[0005] The technical solutions adopted to solve the above problems are:

[0006] A milling machine workpiece automatic clamping fixture comprises a base, a push assembly, an auxiliary clamping assembly, a detachable and replaceable clamping platform, and a material storage platform.

[0007] A clamping platform is arranged in the middle of the base, a pushing assembly is arranged on one side of the clamping platform, and an auxiliary clamping assembly is arranged on the other side of the clamping platform.

[0008] The pushing assembly comprises a pushing cylinder, a pushing arm, a pushing slide block and an articulated seat. The telescopic rod of the pushing cylinder lifts the pushing arm to make the pushing arm rotate. The other end of the pushing arm is movably hinged to the clamping platform through the articulated seat. The upper end of the pushing arm is provided with a pushing end, and the pushing end is used to push the outer wall of the pushing slide block to assist. Pushing grooves are provided on both sides of the pushing slide block, and they cooperate with the pushing slide rails provided at the corresponding position of the clamping platform to make the pushing slide block slide linearly, so that the front end face of the pushing slide block will position and clamp the workpiece to be positioned in the forward direction.

[0009] The clamping platform includes a limit platform, a lifting block, a clamping block and a reference block. The limit platform is arranged on a base, and pushing slide rails cooperating with the pushing sliding block are symmetrically arranged on both sides of the limit platform. The lifting block is arranged on the limit platform, and is used to support and position the lower end face of the blank. A plurality of supporting prisms are arranged on the upper end to position the lower end face of the blank or the workpiece. The lower end face of the supporting prism is provided with a positioning pin and a screw hole, and corresponds to the pin hole and the through hole provided on the limit platform, and is screwed and locked by screws to realize the detachable replacement of the lifting block to adapt to the processing of different types of blanks. The clamping block is arranged on the end face in the forward direction of the pushing sliding block, and is used to directly press one side of the blank. The other end face of the reference block facing the blank or the workpiece is a positioning reference surface, to ensure that the front blank or workpiece is clamped and positioned first.

[0010] Furthermore, the push slider is provided with an anti-wear pad on the surface in contact with the push end to prevent the push slider and the push end from being severely worn.

[0011] Furthermore, the auxiliary clamping assembly is arranged on the outside of the reference block, and includes a clamping cylinder and a clamping block. The clamping cylinder and the pushing cylinder act simultaneously to clamp and position the blank in the alignment direction and then clamp it.

[0012] Furthermore, a material storage platform is provided on one side of the clamping platform for storing blanks to be processed and processed workpieces.

[0013] Furthermore, a baffle is provided between the clamping platform and the material storage platform to prevent processing waste chips on the clamping platform from splashing and clamping onto the blanks to be processed and the processed workpieces, causing surface damage.

[0014] The beneficial effects of the utility model are:

[0015] The automatic clamping fixture of the milling machine workpiece uses auxiliary clamping components and pushing components to synchronously push the blank along the alignment direction to achieve positioning before clamping, and a pushing slider is provided to cooperate with the limit table through the limit slide rail slot. The lifting block can be freely disassembled and replaced to adapt to the processing of blanks of different specifications and models. There is also a designed material storage table, which is convenient for the cylinder clamp to grab and put materials in a short distance, which can improve the rapid clamping of the collecting pipe, improve the production and processing accuracy and efficiency, and is practical and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a left top view of the automatic clamping fixture for the milling machine workpiece of this embodiment;

[0017] Figure 2 It is a right side top view of the automatic clamping fixture for the milling machine workpiece of this embodiment;

[0018] Figure 3It is a schematic diagram of the structure of the limit platform, the lifting block, the clamping block and the reference block described in this embodiment;

[0019] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0020] Among them, 1-base, 2-clamping platform, 3-clamping block, 4-clamping cylinder, 5-baffle, 6-storage table, 7-blank, 8-cylinder clamping jaw, 9-pushing slider, 10-pushing arm, 11-pushing cylinder, 12-limiting platform, 13-anti-wear pad, 14-limiting slide groove, 15-first clamping block, 16-first supporting prism, 17-reference block, 18-second clamping block, 19-articulated seat, 20-second supporting prism. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figures 1 to 4 This embodiment provides an automatic clamping fixture for a milling machine workpiece, including a base 1, a push assembly, an auxiliary clamping assembly, and a detachable and replaceable clamping platform 2.

[0023] See also Figure 1 and Figure 2 A clamping platform 2 is arranged in the middle of the base 1, a pushing assembly is arranged on one side of the clamping platform 2, and an auxiliary clamping assembly is arranged on the other side of the clamping platform 2, that is, the other side of the clamping platform 2.

[0024] Specifically, see Figure 2 and Figure 4 The pushing assembly includes a pushing cylinder 11, a pushing arm 10, a pushing slider 9 and a hinged seat 19. The telescopic rod of the pushing cylinder 11 lifts the pushing arm 10 to make the pushing arm 10 rotate. The other end of the pushing arm 10 is movably hinged to the clamping platform 2 through the hinged seat 19. The upper end of the pushing arm 10 is provided with a pushing end, and the pushing end is used to push the outer wall of the pushing slider 9 to assist. Pushing grooves are provided on both sides of the pushing slider 9, and they cooperate with the pushing slide rails provided at the corresponding position of the clamping platform 2, so that the pushing slider 9 slides in a straight line, and the front end face of the pushing slider 9 is moved in the forward direction to position and clamp the workpiece 7 to be positioned.

[0025] See also Figure 1 , Figure 2 and Figure 4The clamping platform 2 includes a limit platform 12, a lifting block 12, a clamping block and a reference block 17. The limit platform 12 is arranged on the base 1, and pushing slide rails cooperating with the pushing slider 9 are symmetrically arranged on both sides of the limit platform 12. The lifting block 12 is arranged on the limit platform 12, and the lifting block 12 is used to support and position the lower end surface of the blank 7. A plurality of supporting prisms are arranged on the upper end to position the lower end surface of the blank 7 or the workpiece. The lower end surface of the supporting prism is provided with a positioning pin and a screw hole, and corresponds to the pin hole and through hole provided on the limit platform, and is screwed and locked by screws to realize the detachable replacement of the lifting block 12 to adapt to the processing of different types of blanks 7. The clamping block is arranged on the end surface in the forward direction of the pushing slider 9, and is used to directly press one side of the blank 7. The end surface of the reference block 17 facing the other side of the blank 7 or the workpiece is a positioning reference surface to ensure that the front blank 7 or the workpiece is clamped and positioned first.

[0026] See also Figure 4 The push slider 9 is provided with an anti-wear pad 13 on the surface in contact with the push end to prevent the push slider 9 and the push end from being severely worn.

[0027] See also Figure 1 The auxiliary clamping assembly is arranged on the outside of the reference block 17, and includes a clamping cylinder 4 and a clamping block 3. The clamping cylinder 4 and the pushing cylinder 11 act simultaneously to clamp the blank 7 in the positioning direction and then clamp it.

[0028] See also Figure 2 A material storage platform 6 is provided on one side of the clamping platform 2 for storing the blanks 7 to be processed and the processed workpieces.

[0029] See also Figure 2 A baffle 5 is provided between the clamping platform 2 and the material storage platform 6 to prevent the machining waste chips on the clamping platform 2 from splashing onto the blank 7 to be processed and the processed workpiece, causing surface damage.

[0030] The above describes in detail the implementation modes of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes. Various changes, modifications, substitutions and variations can be made within the knowledge scope of ordinary technicians in the field without departing from the purpose of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic clamping fixture for a milling machine workpiece, comprising a base, a push assembly, an auxiliary clamping assembly, and a detachable and replaceable clamping platform, characterized in that: A clamping platform is arranged in the middle of the base, a pushing assembly is arranged on one side of the clamping platform, and an auxiliary clamping assembly is arranged on the other side of the clamping platform. The pushing assembly comprises a pushing cylinder, a pushing arm, a pushing slide block and an articulated seat. The telescopic rod of the pushing cylinder lifts the pushing arm to make the pushing arm rotate. The other end of the pushing arm is movably hinged to the clamping platform through the articulated seat. The upper end of the pushing arm is provided with a pushing end, and the pushing end is used to push the outer wall of the pushing slide block to assist. Pushing grooves are provided on both sides of the pushing slide block, and they cooperate with the pushing slide rails provided at the corresponding position of the clamping platform to make the pushing slide block slide linearly, so that the front end face of the pushing slide block will position and clamp the workpiece to be positioned in the forward direction. The clamping platform includes a limit platform, a lifting block, a clamping block and a reference block. The limit platform is arranged on the base, and pushing slide rails cooperating with the pushing slider are symmetrically arranged on both sides of the limit platform. The lifting block is arranged on the limit platform, and the lifting block is used to support and position the lower end surface of the blank. A plurality of supporting prisms are arranged on the upper end to position the lower end surface of the blank or the workpiece. The lower end surface of the supporting prism is provided with a positioning pin and a screw hole, and corresponds to the pin hole and the through hole provided on the limit platform, and is screwed and locked by screws to realize the detachable replacement of the lifting block. The clamping block is arranged on the end surface in the forward direction of the pushing slider, and the other end surface of the reference block facing the blank or the workpiece is the positioning reference surface.

2. The automatic clamping fixture for milling machine workpiece according to claim 1 is characterized in that: The push sliding block is provided with an anti-wear pad on the surface that contacts and bears force with the push end.

3. The automatic clamping fixture for milling machine workpiece according to claim 1, characterized in that: The auxiliary clamping assembly is arranged on the outside of the reference block, and comprises a clamping cylinder and a clamping block. The clamping cylinder and the pushing cylinder act simultaneously to clamp and position the blank in the alignment direction and then clamp it.

4. The automatic clamping fixture for milling machine workpiece according to claim 1, characterized in that: A material storage platform is arranged on one side of the clamping platform.

5. The automatic clamping fixture for milling machine workpiece according to claim 4 is characterized in that: A baffle is arranged between the clamping platform and the material storage platform.

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