A positioning fixture for instrument production

Abstract

The utility model belongs to the technical field of instrument processing equipment, and specifically relates to a positioning fixture for instrument production, including: an upper fixture, a lower fixture and a locking bolt, the upper fixture includes a first lug, a first positioning portion and a first positioning rod, one end of which is hinged to the lower fixture, and the other end is provided with a first lug, the first positioning rod is arranged on the first positioning portion, the lower fixture includes a second lug, a second positioning portion, a second positioning rod, a third positioning portion and a third positioning rod, the lower fixture is provided with a second lug at one end away from the hinged end of the upper fixture, the second positioning rod is arranged in the second positioning portion, the third positioning rod is arranged in the third positioning portion, and the first lug and the second lug are fixedly connected by a locking bolt. The utility model can accurately position the blank and stably fix it on the fixture by arranging the first positioning rod, the second positioning rod and the third positioning rod on the upper fixture and the lower fixture.

Description

Technical Field

[0001] The utility model belongs to the technical field of instrument processing equipment, and in particular relates to a positioning fixture for instrument production. Background Art

[0002] During the production of the cylindrical shell of the instrument, the blank needs to be fixed in the machining center for processing and forming. Since the shell of the instrument panel is relatively small and the outer wall is thin, it is necessary to process the embedding grooves for embedding instrument components and the plug-in tube for installing the instrument lens on the shell. Therefore, when fixing the blank in the machining center, it is necessary to use the corresponding fixture to accurately position the blank and fix it firmly.

[0003] Since the shell of the instrument is small and the outer wall is thin, the existing positioning fixture cannot fix it stably. At the same time, the fixation of the blank during continuous processing will cause processing deviations and poor positioning effect, which will lead to reduced processing accuracy and low production quality.

[0004] Therefore, it is necessary to study a positioning fixture for instrument production that can maintain the positioning effect during continuous addition and can stably fix the blank. Utility Model Content

[0005] In view of the above-mentioned deficiencies existing in the prior art, the utility model provides a positioning fixture for instrument production, which is used to solve the problem that the prior art cannot stably fix the blank and the positioning effect is poor during continuous processing, resulting in reduced processing accuracy.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A positioning fixture for instrument production, comprising: an upper fixture, a lower fixture and a locking bolt;

[0008] The upper clamp comprises a first lug, a first positioning portion and a first positioning rod, one end of which is hinged to the lower clamp, and the other end of which is provided with a first lug, a first locking hole is provided on the first lug, a first positioning portion is provided with a first threaded hole, and the first positioning rod is penetrated and arranged in the first threaded hole;

[0009] The lower clamp comprises a second lug, a second positioning portion, a second positioning rod, a third positioning portion and a third positioning rod, the lower clamp is provided with a second lug at one end away from the hinged end with the upper clamp, the second lug is provided with a second locking hole, the second positioning portion is provided with a second threaded hole, the second positioning rod is penetrated and arranged in the second threaded hole, the third positioning portion is provided with a third threaded hole, and the third positioning rod is penetrated and arranged in the third threaded hole;

[0010] The locking bolt passes through the first locking hole and the second locking hole to fix the first lug and the second lug together.

[0011] Furthermore, the first positioning rod is provided with an external thread that matches the first threaded hole.

[0012] Furthermore, a first handle is provided at one end of the first positioning rod away from the upper clamp.

[0013] Furthermore, the second positioning rod is provided with an external thread that matches with the second threaded hole, and the third positioning rod is provided with an external thread that matches with the third threaded hole.

[0014] Furthermore, a second handle is provided at one end of the second positioning rod away from the lower clamp, and a third handle is provided at one end of the third positioning rod away from the lower clamp.

[0015] Furthermore, coolant holes are provided on both the upper fixture and the lower fixture.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model discloses a positioning fixture for instrument production. By arranging a first positioning rod, a second positioning rod and a third positioning rod on an upper fixture and a lower fixture, a blank can be accurately positioned and stably fixed on the fixture.

[0018] 2. The utility model discloses a positioning fixture for instrument production. The upper fixture and the lower fixture can be locked by a locking bolt. The upper fixture and the lower fixture can be opened by unscrewing the locking bolt, so that a longer blank can be installed in the fixture. It is also convenient for cleaning and replacement of parts for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 Shows the positional relationship of the utility model in the open state;

[0022] Figure 4 The positional relationship of the present invention in the locked state is shown.

[0023] The reference numerals involved in the accompanying drawings are:

[0024] 1. Upper clamp; 11. First lug; 111. First locking hole; 12. First positioning portion; 121. First threaded hole; 13. First positioning rod; 131. First handle; 2. Lower clamp; 21. Second lug; 211. Second locking hole; 22. Second positioning portion; 221. Second threaded hole; 23. Second positioning rod; 231. Second handle; 24. Third positioning portion; 241. Third threaded hole; 25. Third positioning rod; 251. Third handle; 3. Locking bolt; 4. Coolant hole. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0028] See also Figures 1 to 4 As shown, a positioning fixture for instrument production includes: an upper fixture 1 that cooperates with a lower fixture 2 to fix the blank, a lower fixture 2 that cooperates with the upper fixture 1 to fix the blank, and a locking bolt 3 for locking the upper fixture 1 and the lower fixture 2.

[0029] The upper clamp 1 includes a first lug 11, a first positioning portion 12 and a first positioning rod 13. One end is hinged to the lower clamp 2, and it can be understood that the upper clamp 1 and the lower clamp 2 are relatively flipped around the intersection, so as to facilitate the installation of a longer blank in the clamp, and also facilitate cleaning and replacement of parts for maintenance. The other end is provided with a first lug 11, and the first lug 11 is provided with a first locking hole 111. The first positioning portion 12 is provided with a first threaded hole 121, and the first positioning rod 13 is penetrated and arranged in the first threaded hole 121. Specifically, the first positioning rod 13 is provided with an external thread that matches the first threaded hole 121. Specifically, the first positioning rod 13 is at least partially provided with an external thread, and it can be understood that the length of the first positioning rod 13 extending inward can be controlled by rotating the first positioning rod 13. The first handle 131 is provided at the end of the first positioning rod 13 away from the upper clamp 1.

[0030] The lower clamp 2 includes a second lug 21, a second positioning portion 22, a second positioning rod 23, a third positioning portion 24 and a third positioning rod 25. The lower clamp 2 is provided with a second lug 21 at one end away from the hinged end with the upper clamp 1. The second lug 21 is provided with a second locking hole 211, the second positioning portion 22 is provided with a second threaded hole 221, the second positioning rod 23 is penetrated in the second threaded hole 221, the third positioning portion 24 is provided with a third threaded hole 241, and the third positioning rod 25 is penetrated in the third threaded hole 241. Specifically, the second positioning rod 23 is provided with an external thread that matches the second threaded hole 221, and the third positioning rod 25 is provided with an external thread that matches the third threaded hole 241. Specifically, the second positioning rod 23 and the third positioning rod 25 are at least partially provided with external threads. It can be understood that the length of the second positioning rod 23 and the third positioning rod 25 extending inward can be controlled by rotating the second positioning rod 23 and the third positioning rod 25. Specifically, a second handle 231 is provided at one end of the second positioning rod 23 away from the lower clamp 2 , and a third handle 251 is provided at one end of the third positioning rod 25 away from the lower clamp 2 .

[0031] The locking bolt 3 passes through the first locking hole 111 and the second locking hole 211 to fix the first lug 11 and the second lug 21 together.

[0032] The upper clamp 1 and the lower clamp 2 are both provided with cooling liquid holes 4. It can be understood that during processing, part of the cooling liquid can pass through the upper clamp 1 and the lower clamp 2 through the cooling liquid holes 4 and fall onto the blank, which can further improve the cooling effect.

[0033] The above is only an embodiment of the utility model. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement the scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A positioning fixture for instrument production, characterized in that: include: An upper clamp (1), a lower clamp (2) and a locking bolt (3); The upper clamp (1) comprises a first lug (11), a first positioning portion (12) and a first positioning rod (13); one end of the upper clamp is hingedly connected to the lower clamp (2); the other end is provided with the first lug (11); the first lug (11) is provided with a first locking hole (111); the first positioning portion (12) is provided with a first threaded hole (121); the first positioning rod (13) is arranged to penetrate the first threaded hole (121); The lower clamp (2) comprises a second lug (21), a second positioning portion (22), a second positioning rod (23), a third positioning portion (24) and a third positioning rod (25); the lower clamp (2) is provided with a second lug (21) at one end away from the hinged end with the upper clamp (1); the second lug (21) is provided with a second locking hole (211); the second positioning portion (22) is provided with a second threaded hole (221); the second positioning rod (23) is penetrated in the second threaded hole (221); the third positioning portion (24) is provided with a third threaded hole (241); the third positioning rod (25) is penetrated in the third threaded hole (241); The locking bolt (3) passes through the first locking hole (111) and the second locking hole (211) to fix the first lug (11) and the second lug (21) together.

2. The positioning fixture for instrument production according to claim 1, characterized in that: The first positioning rod (13) is provided with an external thread that matches the first threaded hole (121).

3. The positioning fixture for instrument production according to claim 2, characterized in that: A first handle (131) is provided at one end of the first positioning rod (13) away from the upper clamp (1).

4. The positioning fixture for instrument production according to claim 1, characterized in that: The second positioning rod (23) is provided with an external thread that matches the second threaded hole (221), and the third positioning rod (25) is provided with an external thread that matches the third threaded hole (241).

5. The positioning fixture for instrument production according to claim 4, characterized in that: A second handle (231) is provided at one end of the second positioning rod (23) away from the lower clamp (2), and a third handle (251) is provided at one end of the third positioning rod (25) away from the lower clamp (2).

6. The positioning fixture for instrument production according to claim 1, characterized in that: The upper clamp (1) and the lower clamp (2) are both provided with cooling liquid holes (4).

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