CN201120560Y - Positioning fixture - Google Patents

Abstract

The utility model discloses a positioning fixture, which comprises an acupuncture point plate for fixing workpieces, an upper fixing plate and a lower fixing plate, the upper fixing plate and the acupuncture point plate can be assembled and connected as one, and the lower fixing plate is fixedly installed in the processing On the working table of the equipment, the bottom surface of the upper fixing plate is provided with convex grooves, and the top surface of the lower fixing plate is provided with grooves, and the positioning between the upper and lower fixing plates is realized through the convex grooves and grooves. The use of the positioning jig can save the need to perform tool setting and intermediate processes after each workpiece is replaced, which greatly improves production efficiency.

Description

Positioning fixture

【Technical field】

The utility model relates to a positioning jig, in particular to a positioning jig used in the field of automatic numerical control machining.

【Background technique】

In today's mold industry, with the increase of mold types and the strengthening of market competition, the replacement of molds is also accelerated accordingly, and often new molds that have just been used will be eliminated in the brutal market competition. How to shorten the delivery cycle and improve the machining accuracy to seize the market has become a research topic in the industry.

Swiss EROWA (English name EROWA) company launched a set of quick clamping system applied on the mold, which quickly occupied the market with the advantages of short delivery cycle and low product price. The quick clamping system plays a role that cannot be underestimated in the production of molds. It can effectively improve the production progress of the entire set of molds and enable products to enter the market quickly. Therefore, the production and use of EROWA quick clamping system has become the first choice for the mold industry.

The processing of a complete EROWA quick clamping system needs to be completed by milling machine, grinding machine, CNC and other processing procedures. The traditional CNC processing method is to install a piece of EROWA electrode chuck seat blank on the processing table, and after complex calibration , In the middle, it is necessary to test the balance and strength of the vise clamping the electrode chuck seat blank before processing the electrode chuck seat blank. Moreover, only one workpiece can be processed after each clamping, and the existing processing steps make the processing efficiency of the EROWA electrode chuck seat blank extremely low.

As we all know, about 200 EROWA quick clamping system jigs are needed in the processing of a complete set of mold cores. These jigs are large in number and uniform in size, and often need to be mass-produced. The method of processing a single fixture in a vise has low efficiency in the clamping process, poor positioning accuracy, and requires a lot of manpower and material resources to complete. Therefore, the production of fixtures in the EROWA quick clamping system cannot be completed in time and effectively, and it also affects the mold. Manufacturing produces reverse hysteresis. And then lose the whole market.

【Content of invention】

The technical problem to be solved by the utility model is to provide a positioning jig with high assembly efficiency.

In order to solve the problems of the technologies described above, the solution adopted by the utility model is:

A positioning fixture, comprising an acupuncture point plate for fixing workpieces, an upper fixing plate and a lower fixing plate, the upper fixing plate and the acupuncture point plate can be assembled and connected as one, and the lower fixing plate is fixedly installed on the workbench of the processing equipment , the bottom surface of the upper fixing plate is provided with convex grooves, and the top surface of the lower fixing plate is provided with grooves, and the positioning between the upper and lower fixing plates is realized through the convex grooves and the grooves.

The beneficial effects of the utility model are: the lower fixing plate is fixedly installed on the workbench of the processing equipment, and the positioning is realized through the cooperation between the upper and lower fixing plates through the cooperation of the convex corrugation and the groove, and each time the workpiece to be processed is replaced, only the Replace the upper fixed plate and the acupuncture point plate installed on the upper fixed plate, so that it can save the need to re-perform the process of tool setting and division after each workpiece replacement, which greatly improves the production efficiency.

【Description of drawings】

Fig. 1 is a schematic diagram of the acupuncture point plate in the embodiment of the utility model.

Fig. 2 is a schematic diagram of the upper fixing plate in the embodiment of the utility model.

Fig. 3 is a schematic diagram of the lower fixing plate in the embodiment of the utility model.

Fig. 4 is a schematic diagram of the wedging block in the embodiment of the utility model.

Fig. 5 is an assembly diagram of the embodiment of the utility model.

【Detailed ways】

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to FIG. 1 to FIG. 5 , the positioning fixture of the present invention includes an acupoint plate 10 , an upper fixing plate 20 , a lower fixing plate 30 and a fixing piece 40 . The positioning jig can fix multiple processing tasks at one time. In this embodiment, a jig with four fixing positions is used as an example for illustration.

The acupuncture point plate 10 in this embodiment is evenly and symmetrically provided with four hole grooves 11, and each hole groove 11 is a through groove, which can facilitate the cleaning of sundries in the hole grooves, and four workpieces to be processed can be clamped at one time during processing. The data of the four corners inside the four grooves 11 are unified, and the side of the outer frame of the acupuncture point plate 10 is provided with a number of fixed threaded holes 12. To fix the workpiece to be processed, the top surface of the outer frame of the acupuncture point plate 10 is also provided with a number of through positioning threaded holes 13 .

The top surface of the upper fixing plate 20 is also provided with some fixed threaded holes 21 through which the fixed threaded holes 21 correspond to the positions of the fixed threaded holes 13 on the acupoint plate 10, and are realized by setting positioning screws in the above two threaded holes. The cooperation of the two ensures the accuracy of assembly. Two sides of the upper fixing plate 20 are symmetrically provided with a pair of parallel handles 22 for easy lifting of the upper fixing plate 20 . A bottom surface of the upper fixing plate 20 defines a cross-shaped convex groove 23 .

The lower fixing plate 30 is provided with several threaded holes 31, and the lower fixing plate 30 can be fixed on the workbench of various processing equipment through the threaded holes 31. The top surface of the lower fixing plate 30 is provided with a cross-shaped groove 32, The cross-shaped groove 32 is used to cooperate with the cross-shaped convex groove 23 on the upper fixing plate 20. The cross-shaped groove divides the entire lower fixing plate 30 into four regions, and each region corresponds to the hole groove 11 of the acupuncture point plate 10. .

The fixing part used in the present embodiment is a wedge block 40, and this wedge block 40 is used for connecting the upper and lower fixing plates. Groove, put the wedge block into the groove of the upper and lower fixing plates, then the upper and lower fixing plates can be fixed, so that the position of the workpiece can be kept unchanged, and the installation is quick and convenient.

The using method of the utility model positioning jig is as follows:

1. Install the lower fixing plate 30 accurately and securely on the workbench of the processing equipment.

2. Install the workpiece to be processed in the four hole grooves 11 of the acupuncture point plate 10, and fasten the workpiece to be processed in the hole groove 11 through the fixed threaded hole 12 with a hexagon socket head screw.

3. Fasten the corresponding screw holes 13 and 21 of the upper fixing plate 20 and the acupoint plate 10 together with hexagon socket screws,

4. Place the acupoint plate 10 and the upper fixing plate 20 connected together on the lower fixing plate 30, and assemble them through the cross groove and convex groove between the upper and lower fixing plates, and then use the wedge block 40 to make the upper and lower The fixing plates 20, 30 are fastened.

After the above-mentioned assembly is completed, the workpiece to be processed can be processed. When the workpiece to be processed needs to be replaced after the processing is completed, only the wedge block 40 needs to be loosened, the acupuncture point plate 10 and the upper fixed plate 20 are removed, and the other pair is assembled and waited for. The acupoint plate 10 and the upper fixed plate 20 of the processed workpiece are installed on the lower fixed plate by the above-mentioned method and can be operated in a cycle.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (3)

1, a kind of localization tool, it is characterized in that: comprise the acupuncture point plate, upper mounted plate and the bottom plate that are used for fixing workpiece, this upper mounted plate and acupuncture point plate can connect as one with assembling, this bottom plate is fixedly mounted on the workbench of process equipment, the bottom surface of this upper mounted plate is provided with protruding stupefied, the end face of bottom plate is provided with groove, realizes location between upper and lower fixing plate by described protruding stupefied and groove.

2, localization tool as claimed in claim 1 is characterized in that: also comprise a wedge block, all there is the groove that matches with wedge block on described upper and lower fixing plate four limits, and this wedge block can be snapped in the upper and lower fixing plate groove.

3, localization tool as claimed in claim 1 is characterized in that: the correspondence position of this upper mounted plate and acupuncture point plate is provided with the screwed hole that runs through, and assembles screw in the screwed hole that runs through, thereby upper mounted plate and acupuncture point plate are assembled into one.

Images