Positioning device for perforating machine

Abstract

The utility model discloses a positioning device for a puncher in the technical field of punchers, which comprises a positioning seat, a bearing seat and a positioning ring plate are coaxially arranged at the top of the positioning seat, four sliding plates distributed in an annular array are slidably arranged on the positioning ring plate in a penetrating manner, first positioning rods are fixedly arranged on two opposite sliding plates, and second positioning rods are fixedly arranged on two opposite sliding plates. And inserting grooves are formed in the ends of the other two sliding plates, second positioning rods are slidably inserted into the two inserting grooves, first springs are arranged between the second positioning rods and the inner walls of the inserting grooves, and an adjusting mechanism is arranged on the positioning ring plate and used for adjusting the four sliding plates to synchronously and reversely slide.

Description

TECHNICAL FIELD

[0001] The utility model relates to a perforating machine technical field, specifically a kind of positioning device for perforating machine. BACKGROUND

[0002] Signboard refers to the signboard marked for visual effect, and the signboard needs to be punched by using a perforating machine in the processing process. The perforating machine is also called electric spark perforating machine, puncher, small hole machine or fine hole discharge machine. Its working principle is to use a fine metal copper tube (called electrode wire) for electrode, which is vertically moved up and down continuously, to perform pulse spark discharge on workpiece to remove metal and form. Its processing precision is high.

[0003] The existing perforating machine is usually equipped with a positioning device for positioning the signboard to further improve the processing precision. According to the search, the utility model with the patent publication number CN221064727U discloses a feeding positioning device for perforating machine. After energization, the four-corner limiting piece is magnetically attracted and fixed on the top of the positioning plate seat. The four-corner limiting piece is used to position the signboard. After de-energization, the user can adjust the position of the four-corner limiting piece on the top of the positioning plate seat to adapt to different specifications of the plate workpiece, which is convenient for the user to use and improves the convenience of the structure. However, there are some problems in use. When positioning different specifications of the plate, the limiting piece at the four corners needs to be adjusted four times. At the same time, most of the signboards are rectangular plates, and the limiting piece at the four corners is not convenient for centering adjustment of the plate. Therefore, the present application provides a positioning device for perforating machine. UTILITY MODEL CONTENTS

[0004] The utility model aims to solve the problem of the existing positioning device, which uses four-corner limiting pieces for positioning. When positioning different specifications of the signboard, the four corners need to be adjusted, and it is not convenient to adjust the centering position of the signboard after limiting. The utility model provides a positioning device for perforating machine.

[0005] The utility model realizes the above-mentioned purpose by using the following technical solutions:

[0006] A positioning device for perforating machine includes:

[0007] A positioning seat has a bearing seat and a positioning ring plate coaxially arranged on the top. Four sliding plates are arranged in a ring array on the positioning ring plate. Two first positioning rods are fixed on the opposite sliding plates. Two insertion slots are arranged at the end of the other two sliding plates. Two second positioning rods are slidably inserted into the insertion slots. A first spring is arranged between the second positioning rod and the inner wall of the insertion slot. An adjusting mechanism is arranged on the positioning ring plate to adjust the synchronous reverse sliding of the four sliding plates.

[0008] Further, the adjusting mechanism comprises a rotating ring rotatably sleeved on a positioning ring plate, four vertical columns are rotatably arranged on the positioning ring plate, gears are fixedly arranged on the four vertical columns, a gear ring is fixedly arranged on the rotating ring and is in meshing connection with the four gears, racks are fixedly arranged on the four sliding plates and are in meshing connection with the four gears respectively, and a fixing member for fixing the rotating ring is arranged on the positioning ring plate.

[0009] Further, the fixing member comprises an arc-shaped slot formed in the positioning ring plate, a plurality of first clamping teeth are arranged in the arc-shaped slot in an array, a supporting rod is arranged on the rotating ring, a holding rod is sleeved on the supporting rod in a sliding mode, and second clamping teeth are arranged on the holding rod and are in clamping connection with the first clamping teeth.

[0010] Further, an end portion of the supporting rod is provided with a limiting plate, and a second spring is arranged on the supporting rod and is in connection between the holding rod and the limiting plate.

[0011] Further, end portions of the first positioning rod and the second positioning rod are respectively provided with a first limiting plate and a second limiting plate.

[0012] Further, a rubber pad is arranged on the first limiting plate, and a plurality of convex strips are arranged on the rubber pad in an array.

[0013] Further, a groove is formed in the second limiting plate, and a plurality of rollers are arranged in the groove in an array and are arranged in a rolling mode.

[0014] Further, a grid hole is formed in the bearing seat in a penetrating mode.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] In the present application, the four sliding plates are synchronously slid by the adjusting mechanism, the four side edges of the signboard are abutted by the two first positioning rods and the two second positioning rods, the two second positioning rods are firstly contacted with the signboard and are slid to be contracted to preliminarily position the signboard by the elastic force of the first spring, the two first positioning rods are secondly contacted with the signboard to position and clamp the signboard, and the signboard can be positioned in different specifications, and the preliminary positioning and the secondary positioning can be combined to adjust the floating centering of the signboard. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structural view of the present application;

[0018] Figure 2 It is a three-dimensional structural view of the present application;

[0019] Figure 3 It is a three-dimensional structural view of the present application;

[0020] Figure 4 It is a part of the three-dimensional structure of the utility model sectional view;

[0021] Figure 5 It is another part of the three-dimensional structure of the utility model;

[0022] Figure 6 It is the utility model Figure 1 The enlarged view of A in the middle;

[0023] Figure 7 It is the utility model Figure 2 The enlarged view of B in the middle.

[0024] In the figure: 1, positioning seat;2, bearing seat;3, positioning ring plate;4, sliding plate;5, first positioning rod;6, slot;7, second positioning rod;8, first spring;9, adjusting mechanism;10, limit plate;11, second spring;12, first positioning plate;13, second positioning plate;14, rubber pad;15, groove;16, roller;17, grid hole;901, rotating ring;902, stand;903, gear;904, gear ring;905, rack;906, fixed part;9061, arc-shaped slot;9062, first pawl;9063, support rod;9064, handle;9065, second pawl. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0026] The positioning device for perforating machine provided in the embodiment is mainly used for solving the problem that the existing positioning device is positioned by four corner limiters, and when positioning different specifications of signboards, the four corners need to be adjusted and the centering position after limiting the signboard is inconvenient to adjust, and the following technical scheme is provided, which will be described in detail below in combination with Figures 1-7

[0027] The positioning device for perforating machine comprises:

[0028] ​Positioning seat 1 is set on the worktable of the drilling machine and aligned with the machine head. A support seat 2 and a positioning ring plate 3 are coaxially mounted on its top. When drilling a sign, the sign is placed on the support seat 2. Four sliding plates 4 arranged in a circular array slide through the positioning ring plate 3. A first positioning rod 5 is fixed on two opposing sliding plates 4, and slots 6 are opened at the ends of the other two sliding plates 4. A second positioning rod 7 is slidably inserted into each slot 6. A first spring 8 is provided between the second positioning rod 7 and the inner wall of the slot 6. In the initial state, under the elastic force of the first spring 8, the second positioning rod 7... Part of the sign is located outside the slot 6. The two first positioning rods 5 and the two second positioning rods 7 are arranged in a ring. When the sign is placed on the support seat 2, the sign is located between the first positioning rods 5 and the second positioning rods 7. It should be noted that when placing the sign, its two ends in the length direction are aligned with the two second positioning rods 7, and its two ends in the width direction are aligned with the two first positioning rods 5. The positioning ring plate 3 is equipped with an adjustment mechanism 9, which is used to adjust the four sliding plates 4 to slide synchronously in opposite directions. After the sign is placed, the four sliding plates 4 are adjusted to slide synchronously closer together by the adjustment mechanism 9. Since the sign is rectangular, it has length and width, such as Figure 1 As shown, the sign is placed on the support base 2. Two first positioning rods 5 are located in the front and rear directions, and two second positioning rods 7 are located in the left and right directions. When the four sliding plates 4 slide towards each other synchronously, the two second positioning rods 7 located on the left and right sides first contact the two ends of the sign along its length. Because the two second positioning rods 7 move synchronously, the sign is initially positioned. As the four sliding plates 4 continue to slide towards each other, under the action of the resisting force, the two second positioning rods 7 slide and retract into the two slots 6. Under the resistance of the first spring 8, the two second positioning rods 7 continue to initially position the sign without affecting the normal movement of the four sliding plates 4. As the four sliding plates 4 continue to slide, the two first positioning rods 5 located in the front and rear directions and the two second positioning rods 7 located on the width of the sign... The two ends of the direction abut against each other, thereby performing secondary positioning of the sign. Since the second positioning rod 7 abuts against the sign by the elastic force of the first spring 8, even after the two second positioning rods 7 abut against the sign, the two first positioning rods 5 can still push the sign to move horizontally for secondary positioning. Although the four sides of the sign are abutted respectively, the two second positioning rods 7 only perform preliminary positioning and limit the sign. The two first positioning rods 5 perform secondary positioning and fix the sign. By adjusting the adjustment mechanism 9 to adjust the four sliding plates 4 to slide synchronously, not only can signs of different specifications be positioned, but also positioning is convenient. While performing positioning, the preliminary positioning combined with the secondary positioning can complete the floating centering adjustment of the sign, thereby improving its practicality.

[0029] In the scheme, the four sliding plates 4 are adjusted to slide synchronously by the adjusting mechanism 9, the two first positioning rods 5 and the two second positioning rods 7 abut against the four side edges of the signboard respectively, the two second positioning rods 7 first contact the signboard and slide to contract to preliminarily position the signboard by the elastic force of the first spring 8, the two first positioning rods 5 then contact the signboard, the two first positioning rods 5 position the signboard twice and clamp and fix the signboard, so that different specifications of signboards can be positioned, and the preliminary positioning cooperates with the secondary positioning to complete the floating centering adjustment of the signboard when positioning.

[0030] As shown in Figure 6 the embodiment, the adjusting mechanism 9 comprises a rotating ring 901 rotatably arranged on the positioning ring plate 3, four vertical columns 902 are rotatably arranged on the positioning ring plate 3, gears 903 are fixedly arranged on the four vertical columns 902 respectively, a gear ring 904 is fixedly arranged on the rotating ring 901 and the gear ring 904 is in gear engagement with the four gears 903, racks 905 are fixedly arranged on the four sliding plates 4 respectively and the four racks 905 are in gear engagement with the four gears 903 respectively, and a fixing member 906 for fixing the rotating ring 901 is arranged on the positioning ring plate 3, when the signboard is positioned, the rotating ring 901 is rotated to drive the gear ring 904 to rotate, the gear ring 904 and the four gears 903 are in gear engagement, thereby driving the four gears 903 to rotate, the gears 903 and the racks 905 are in gear engagement, thereby driving the four sliding plates 4 to slide synchronously, thereby adjusting the four sliding plates 4 to slide synchronously to approach or move away from the bearing seat 2, after the four sliding plates 4 are adjusted to slide, the rotating ring 901 is fixed by the fixing member 906, thereby completing the positioning of the signboard.

[0031] As shown in Figure 7 the embodiment, the fixing member 906 comprises an arc-shaped slot 9061 formed in the positioning ring plate 3, a plurality of first clamping teeth 9062 are arranged in an array in the arc-shaped slot 9061, a supporting rod 9063 is arranged on the rotating ring 901, a handle rod 9064 is slidably arranged on the supporting rod 9063, a second clamping tooth 9065 is arranged on the handle rod 9064 and is in clamping engagement with the first clamping tooth 9062, a clamping slot is formed between the two adjacent first clamping teeth 9062, and the second clamping tooth 9065 is in clamping engagement with the clamping slot, when the rotating ring 901 is adjusted to rotate, the handle rod 9064 is first pulled to move the second clamping tooth 9065 away from the first clamping tooth 9062, and then the handle rod 9064 is rotated about the positioning ring plate 3 as the center, thereby driving the rotating ring 901 to rotate, when it is needed to fix the rotating ring 901, the handle rod 9064 is slid to clamp the second clamping tooth 9065 between the two adjacent first clamping teeth 9062, thereby locking and fixing the rotating ring 901.

[0032] As shown in Figure 7As shown, in this embodiment, the end of the supporting rod 9063 is provided with a limiting plate 10, and a second spring 11 is arranged between the limiting plate 10 and the handle rod 9064 and sleeved on the supporting rod 9063. Through the limiting plate 10 and the second spring 11, the handle rod 9064 is slidably close to the rotating ring 901 under the elastic resistance of the second spring 11. When the rotating ring 901 is adjusted to move, the handle rod 9064 needs to be pulled first to press the second spring 11. When the second clamping tooth 9065 is clamped and matched with the first clamping tooth 9062, the clamping is more stable under the elastic resistance of the second spring 11, so as to ensure the stability of the fixing of the rotating ring 901.

[0033] As shown in Figure 3 , Figure 4 and Figure 5 , in this embodiment, the ends of the first positioning rod 5 and the second positioning rod 7 are respectively provided with a first limiting plate 12 and a second limiting plate 13. The first limiting plate 12 and the second limiting plate 13 are arranged to increase the contact area of the first positioning rod 5 or the second positioning rod 7 with the sign, so as to improve the positioning effect of the sign.

[0034] As shown in Figure 5 , in this embodiment, the first limiting plate 12 is provided with a rubber pad 14, and a plurality of convex strips are arranged on the rubber pad 14. The first limiting plate 12 is used for secondary positioning of the sign, and finally clamps and fixes the sign. The rubber pad 14 is arranged to increase the contact friction between the first limiting plate 12 and the sign, so as to ensure the stability of the positioning and fixing.

[0035] As shown in Figure 3 , in this embodiment, the second limiting plate 13 is provided with a groove 15, and a plurality of rollers 16 are arranged in the groove 15 in an array and rollingly inserted. Since the second limiting plate 13 only elastically clamps and preliminarily positions the sign, when the first limiting plate 12 is used for secondary positioning of the sign, the sign needs to be adjusted by sliding horizontally. The groove 15 is arranged on the second limiting plate 13, the rollers 16 are arranged in the groove 15, the rollers 16 rollingly overlap the sign, so as to reduce the contact friction between the second limiting plate 13 and the sign, and to ensure that the first limiting plate 12 can smoothly perform secondary positioning of the sign.

[0036] As shown in Figure 1 and Figure 2 , in this embodiment, the bearing seat 2 is provided with a grid hole 17. When the sign is perforated, the perforating machine adopts electric spark discharge to perforate, which has a certain temperature. Usually, a cooling device is provided for spraying cooling. The grid hole 17 is arranged to facilitate heat dissipation and cooling liquid carrying debris circulation, thereby improving the practicability.

[0037] The working process of the utility model discloses: the sign is placed on the bearing seat 2, four slide plates 4 are adjusted to slide close in synchronization through the adjusting mechanism 9, two second positioning rods 7 located left and right first contact with the both ends of the length direction of the sign, because two second positioning rods 7 move in synchronization, thereby the sign is preliminarily positioned, with four slide plates 4 continue to slide close, under the action of the resistance, two second positioning rods 7 slide and contract to two slot 6 respectively, and under the resistance of the elastic force of first spring 8, two second positioning rods 7 continue to preliminarily position the sign, when preliminary positioning, four slide plates 4 normal movement are not affected, with the continue sliding of four slide plates 4, two first positioning rods 5 located front and back contact with the both ends of the width direction of the sign, thereby the sign is positioned secondly, although the four side edges of the sign are resisted respectively, but two second positioning rods 7 only preliminarily position the sign and limit, two first positioning rods 5 position the sign secondly and fix it, through the adjusting mechanism 9 adjusting four slide plates 4 to slide in synchronization, not only can the sign of different specifications be positioned, simultaneously, positioning is convenient, when positioning, preliminarily positioning cooperates secondary positioning and can complete the floating centering adjustment of the sign, thereby improve practicality.

[0038] The above, only for the preferable specific implementation mode of the utility model, but the protection scope of the utility model does not limit to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A positioning device for a punching machine, characterized in that, include: The positioning base (1) has a bearing base (2) and a positioning ring plate (3) coaxially arranged on its top. Four sliding plates (4) arranged in a ring array slide through the positioning ring plate (3). A first positioning rod (5) is fixed on two opposite sliding plates (4). A slot (6) is opened at the end of the other two sliding plates (4). A second positioning rod (7) is slidably inserted into the two slots (6). A first spring (8) is arranged between the second positioning rod (7) and the inner wall of the slot (6). An adjustment mechanism (9) is provided on the positioning ring plate (3). The adjustment mechanism (9) is used to adjust the four sliding plates (4) to slide in opposite directions synchronously.

2. The positioning device for a punching machine according to claim 1, characterized in that: The adjusting mechanism (9) includes a rotating ring (901) rotatably sleeved on the positioning ring plate (3). Four columns (902) are rotatably arranged on the positioning ring plate (3). Gears (903) are fixed on each of the four columns (902). A toothed ring (904) is fixed on the rotating ring (901), and the toothed ring (904) meshes with the teeth of the four gears (903). A rack (905) is fixed on each of the four sliding plates (4), and the four racks (905) mesh with the teeth of the four gears (903) respectively. A fixing member (906) for fixing the rotating ring (901) is provided on the positioning ring plate (3).

3. The positioning device for a punching machine according to claim 2, characterized in that: The fixing member (906) includes an arc-shaped groove (9061) opened on the positioning ring plate (3), and a plurality of first locking teeth (9062) are arranged in an array in the arc-shaped groove (9061). A support rod (9063) is provided on the rotating ring (901), and a grip rod (9064) is slidably sleeved on the support rod (9063). A second locking tooth (9065) is provided on the grip rod (9064) to engage with the first locking teeth (9062).

4. The positioning device for a punching machine according to claim 3, characterized in that: The end of the support rod (9063) is provided with a limiting plate (10), and a second spring (11) sleeved on the support rod (9063) is installed between the grip (9064) and the limiting plate (10).

5. The positioning device for a punching machine according to claim 1, characterized in that: The ends of the first positioning rod (5) and the second positioning rod (7) are respectively provided with a first positioning plate (12) and a second positioning plate (13).

6. The positioning device for a punching machine according to claim 5, characterized in that: The first positioning plate (12) is provided with a rubber pad (14), and the rubber pad (14) has a number of protrusions arranged in an array.

7. The positioning device for a punching machine according to claim 5, characterized in that: The second positioning plate (13) has a groove (15) and several rollers (16) are arranged in an array within the groove (15).

8. The positioning device for a punching machine according to claim 1, characterized in that: The support seat (2) has a through-hole (17).

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